Page 140«..1020..139140141142..»

Jets support one fan's quest for a life-saving bone-marrow transplant

By Sykes24Tracey

Earlier this spring, Jets defensive coordinator Mike Pettine spent more than an hour on the phone with Villanova coach Andy Talley. But they weren't talking about football.

Instead, Pettine needed advice on a cause that Talley has championed in Philadelphia: bone marrow donation.

The topic hit close to home for Pettine last month, when he learned through a close friend about Michael Manganiello, a long-time Jets fan from Wayside who was diagnosed with acute myelofibrosis Easter weekend.

The rare condition -- which causes the bone marrow to progressively scar and become unable to produce blood cells -- is aggressively advancing in Manganiello's body, and his survival depends on quickly finding a matching bone marrow donor.

"It was a no-brainer to step in and help," Pettine said last night. "We dont get a lot of opportunities to do something like this, when you have a chance to have such a great impact on a life."

Pettine served as a co-host for the "Match for Michael" event held last night in Eatontown, which raised funds for the Manganiello family and the National Marrow Donor Program, but more importantly added more than 400 new people to the national bone marrow registry. Registering is as easy as taking a cheek swab, and bone marrow donation is now a less invasive procedure, the majority of the time being done via a non-surgical peripheral blood stem cell donation. Donors can usually resume normal activities within two to seven days.

Talley, who founded a non-profit organization two years ago to add donors to the national registry, gave Pettine advice on running such an event. Jets coach Rex Ryan and players Mark Sanchez, Sione Pouha and Aaron Maybin lent their support by attending the event last night, signing autographs and posing for pictures with the newly registered donors.

Manganiello, whose wife described him as the No. 1 Jets fan, was at the Robert Wood Johnson Hospital, where he is currently undergoing chemotherapy, but the Jets coaches and players were trying to reach him in his hospital room by phone.

"He's very selfless -- he would be embarrassed to know we are all here for him, he'd probably feel funny," Margo Manganiello, Michael's wife, said. "I just know were going to get through this together as a family, and I just feel like this must have happened for a reason, for us to give back to other families that are in similar situations, to help them find a cure. Because I'm very optimistic that were going to get there."

In a matter of weeks, the Manganiello family's life has been turned upside down. The 44-year-old father of three had been experiencing fatigue while running and an irregular heartbeat earlier this spring, so his wife forced him to go to the emergency room the day before Easter. It was there that blood tests confirmed the scary diagnosis.

Read this article:
Jets support one fan's quest for a life-saving bone-marrow transplant

To Read More: Jets support one fan's quest for a life-saving bone-marrow transplant
categoriaBone Marrow Stem Cells commentoComments Off on Jets support one fan's quest for a life-saving bone-marrow transplant | dataMay 2nd, 2012
Read All

Local woman donates stem cells through national registry

By Sykes24Tracey

PLATTSBURGH Lois Wenger cites her faith in God as the underlying factor in her ability to help others in need, and she has never faltered in lending a helping hand.

Or in this case some much-needed bone marrow.

Wenger, who works as a support specialist in CVPH Medical Center's Information Services and Support Department, has been donating blood for years. Her blood type is O-negative, which is the universal blood type and can be used by most people in need of a transfusion.

"My older sister is a medical technologist, so it's always been a regular practice (to give blood)," Wenger said.

That practice expanded a few years ago when Wenger heard that the CVPH Blood Donor Center was working with the Rhode Island Blood Donor Center on a plan to increase the national database for bone-marrow donations.

"Only about 5 million people (nationally) were in the database at that time," said Nancy Roberts, a registered nurse at the CVPH Blood Donor Center. "We thought it would be a good idea to send out the word (for needed donors) in our region."

During the past few years, the Donor Center has hosted a bone-marrow registration at the annual Relay for Life fundraising program for the American Cancer Society.

Those successful drives, along with registrations made through the Blood Donor Center, have resulted in about 700 people from the North Country now being listed on the bone-marrow donation registry.

Those potential donors remain anonymous while their specific tissue type (collected by a simple cheek swab when registering) is recorded via bar code.

There is nothing else for the potential donor to do unless they are notified of a potential match anywhere in the country and even across the globe.

Continued here:
Local woman donates stem cells through national registry

To Read More: Local woman donates stem cells through national registry
categoriaBone Marrow Stem Cells commentoComments Off on Local woman donates stem cells through national registry | dataMay 2nd, 2012
Read All

Biobank aims to collect stem cells and tissues for use in future bone grafts

By daniellenierenberg

A startup has set out to create a biobank of stem cell-rich tissues collected during surgery with the idea that customers can use their own stored biomaterials for use in future bone graft procedures and stem cell therapies.

Cleveland-based CellBank Technologies is modeling parts of its business on the cord blood bank industry, but instead of blood, it plans to store stem cells and bone-grafting tissues harvested from patients during knee and hip replacement surgeries.

Advertisement

The problem with harvesting autologous bone graft tissue is that doing so requires a second painful surgery so doctors can obtain the patients own cells. And that additional surgery is just another opportunity for the patient to develop postoperative pain or other complications. Grafting tissue can be taken from several different body parts, including the iliac crest at the hip.

Other options for bone-graft patients include allograft (human tissue harvested from someone besides the patient), synthetic materials and growth factors, which are substances that stimulate cell growth. Controversy has recently engulfed Medtronics bone growth factor Infuse, with allegations of off-label use that contributed to the company paying $85 million to settle a class-action securities fraud lawsuit.

Autograft, which involves harvesting your own bone-grafting tissue, is the gold standard, but its so hard to get, Uram said.

CellBanks plan is to collect bone, marrow and stem cells that would otherwise be discarded during knee and hip surgeries. CellBank customers would then have access to their grafting materials, a product the company has labeled GoldGraft, for future bone graft surgery. The company would also store patients stem cells for use in future stem cell therapies.

Companies that store stem cells for patients include NeoStem and ViaCord.Uram said shes not aware of any other company today that stores both autograft tissue and stem cells for a patients future use.

Thats the beauty of our offering, she said. Were playing in the stem cell collect-and-store industry, but were giving our customers a way to use that collected tissue before the stem cell industry even takes off, if they need it, through use of bone-grafting tissue. With one collection our products solve multiple health needs.

Read this article:
Biobank aims to collect stem cells and tissues for use in future bone grafts

To Read More: Biobank aims to collect stem cells and tissues for use in future bone grafts
categoriaBone Marrow Stem Cells commentoComments Off on Biobank aims to collect stem cells and tissues for use in future bone grafts | dataApril 29th, 2012
Read All

Leukemia cells have a remembrance of things past

By Sykes24Tracey

ScienceDaily (Apr. 24, 2012) Although people generally talk about cancer, it is clear that the disease occurs in a bewildering variety of forms. Even single groups of cancers, such as those of the white blood cells, may show widely differing properties. How do the various cancers arise and what factors determine their progression? Clues to these two issues, at least for leukemias, have now been provided by Boris Kovacic and colleagues at the University of Veterinary Medicine, Vienna (Vetmeduni Vienna). The results are published in the current issue of the journal EMBO Molecular Medicine and have extremely important consequences for the treatment of a particularly aggressive type of leukemia.

It is well known that many types of cancer arise as a result of a mutation within a cell and prevailing wisdom has held that the stage of differentiation of this cell determines exactly what form of cancer develops. For example, it was believed that so-called chronic myeloid leukemia or CML arises from bone marrow stem cells, while a different type of leukemia, known as B-cell acute lymphoid leukemia or B-ALL, results from B-cell precursors. This belief has been spectacularly refuted by the latest results from Boris Kovacic and colleagues in the Vetmeduni Viennas institutes of Animal Breeding and Genetics and of Pharmacology and Toxicology.

The researchers have now shown that both CML and B-ALL arise from the most primordial kind of blood cell (long-term haematopoietic stem cells), although the pathways by which the diseases progress are different. The usual causes of CML and B-ALL are two highly related versions of the same oncogene, BCR/ABL. If the primordial blood cells are transformed or made potentially cancerous by a particular version of BCR/ABL, for technical reasons termed BCR/ABLp210, the result is chronic myeloid leukemia or CML. The long-term haematopoietic stem cells remain and act as the dreaded cancer stem cells, or CSCs, which ensure that the disease persists. Curing chronic myeloid leukemia requires the complete elimination of the CSCs. However, if the long-term haematopoietic stem cells are transformed by a related version of BCR/ABL, BCR/ABLp185, the result is a highly aggressive form of leukemia, B-ALL. The finding that B-ALL actually originates from the same stem cells as CML was both unexpected and highly provocative.

Kovacic and colleagues have shown further that B-ALL only develops if the transformed stem cell is exposed to a particular growth factor, interleukin-7. If interleukin-7 is present (it usually is), the transformed long-term haematopoietic stem cells undergo a differentiation step to CSCs, which in this case correspond to pro-B cells. If interleukin-7 is absent during the initial phase of transformation, B-ALL cannot develop.

In other words, two distinct types of cell are involved in leukemia development, the primordial cells (also termed the cells of origin of cancer) and the cancer stem cells that cause the disease to progress. Unless the CSCs are eliminated, fresh cancer cells can arise at any time and the leukemia will recur. The problem is that current leukemia therapies are not designed to target CSCs. The primordial CSCs in CML are highly quiescent and thus difficult to target. In contrast, the CSCs in B-ALL are abundant and have a high turnover rate, which makes them susceptible to treatment. Treatment of B-ALL may thus succeed in eliminating most CSCs but if even a single cell remains intact it is likely that the patient will relapse, possibly with an even more aggressive form of leukemia. A therapy that targets the bulk of tumour cells will not work, as Kovacic succinctly summarizes his results. To treat B-ALL successfully it will be necessary for us to learn much more about the development of the disease. A combined therapy is required, so future work should aim at developing drugs that target the long-term haematopoietic stem cells from which B-ALL is derived.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:

Story Source:

The above story is reprinted from materials provided by Veterinrmedizinische Universitt Wien, via AlphaGalileo.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

Originally posted here:
Leukemia cells have a remembrance of things past

To Read More: Leukemia cells have a remembrance of things past
categoriaBone Marrow Stem Cells commentoComments Off on Leukemia cells have a remembrance of things past | dataApril 25th, 2012
Read All

Leukaemia cells have a remembrance of things past

By JoanneRUSSELL25

Public release date: 24-Apr-2012 [ | E-mail | Share ]

Contact: Dr Boris Kovacic Boris.Kovacic@vetmeduni.ac.at 43-125-077-5622 University of Veterinary Medicine -- Vienna

Although people generally talk about "cancer", it is clear that the disease occurs in a bewildering variety of forms. Even single groups of cancers, such as those of the white blood cells, may show widely differing properties. How do the various cancers arise and what factors determine their progression? Clues to these two issues, at least for leukaemias, have now been provided by Boris Kovacic and colleagues at the University of Veterinary Medicine, Vienna (Vetmeduni Vienna). The results are published in the current issue of the journal EMBO Molecular Medicine and have extremely important consequences for the treatment of a particularly aggressive type of leukaemia.

It is well known that many types of cancer arise as a result of a mutation within a cell and prevailing wisdom has held that the stage of differentiation of this cell determines exactly what form of cancer develops. For example, it was believed that so-called chronic myeloid leukaemia or CML arises from bone marrow stem cells, while a different type of leukaemia, known as B-cell acute lymphoid leukaemia or B-ALL, results from B-cell precursors. This belief has been spectacularly refuted by the latest results from Boris Kovacic and colleagues in the Vetmeduni Vienna's institutes of Animal Breeding and Genetics and of Pharmacology and Toxicology.

The researchers have now shown that both CML and B-ALL arise from the most primordial kind of blood cell (long-term haematopoietic stem cells), although the pathways by which the diseases progress are different. The usual causes of CML and B-ALL are two highly related versions of the same oncogene, BCR/ABL. If the primordial blood cells are transformed or made potentially cancerous by a particular version of BCR/ABL, for technical reasons termed BCR/ABLp210, the result is chronic myeloid leukaemia or CML. The long-term haematopoietic stem cells remain and act as the dreaded cancer stem cells, or CSCs, which ensure that the disease persists. Curing chronic myeloid leukaemia requires the complete elimination of the CSCs. However, if the long-term haematopoietic stem cells are transformed by a related version of BCR/ABL, BCR/ABLp185, the result is a highly aggressive form of leukaemia, B-ALL. The finding that B-ALL actually originates from the same stem cells as CML was both unexpected and highly provocative.

Kovacic and colleagues have shown further that B-ALL only develops if the transformed stem cell is exposed to a particular growth factor, interleukin-7. If interleukin-7 is present (it usually is), the transformed long-term haematopoietic stem cells undergo a differentiation step to CSCs, which in this case correspond to pro-B cells. If interleukin-7 is absent during the initial phase of transformation, B-ALL cannot develop.

In other words, two distinct types of cell are involved in leukaemia development, the primordial cells (also termed the cells of origin of cancer) and the cancer stem cells that cause the disease to progress. Unless the CSCs are eliminated, fresh cancer cells can arise at any time and the leukaemia will recur. The problem is that current leukaemia therapies are not designed to target CSCs. The primordial CSCs in CML are highly quiescent and thus difficult to target. In contrast, the CSCs in B-ALL are abundant and have a high turnover rate, which makes them susceptible to treatment. Treatment of B-ALL may thus succeed in eliminating most CSCs but if even a single cell remains intact it is likely that the patient will relapse, possibly with an even more aggressive form of leukaemia. "A therapy that targets the bulk of tumour cells will not work," as Kovacic succinctly summarizes his results. "To treat B-ALL successfully it will be necessary for us to learn much more about the development of the disease. A combined therapy is required, so future work should aim at developing drugs that target the long-term haematopoietic stem cells from which B-ALL is derived."

###

The paper "Diverging fates of cells of origin in acute and chronic leukemia" by Boris Kovacic, Andrea Hoelbl, Gabriele Litos, Memetcan Alacakaptan, Christian Schuster, Katrin M. Fischhuber, Marc A. Kerenyi, Gabriele Stengl, Richard Moriggl, Veronika Sexl and the late Hartmut Beug is published in the current issue of the journal "EMBO Molecular Medicine" (2012, Vol. 4 pp. 283-297).

The work was initiated at the Research Institute of Molecular Pathology (IMP) and was performed together with groups at the Medical University of Vienna and the Ludwig Boltzmann Institute for Cancer Research in Vienna.

Originally posted here:
Leukaemia cells have a remembrance of things past

To Read More: Leukaemia cells have a remembrance of things past
categoriaBone Marrow Stem Cells commentoComments Off on Leukaemia cells have a remembrance of things past | dataApril 25th, 2012
Read All

ASUN to host Bone Marrow Donor Drive

By JoanneRUSSELL25

Arkansas State University-Newport will host a Bone Marrow Donor Drive on campus Thursday, March 29 from 10am until 7pm and Saturday, March 31 from 9am until 1pm in the Student/Community Center, Merchants & Planters Insurance and Investments room. A bone marrow transplant is a lifesaving treatment for people with leukemia, lymphoma and many other diseases. First, patients undergo chemotherapy and sometimes radiation to destroy their diseased marrow. Then a donor's healthy blood-forming stem cells are transfused directly into the patient's bloodstream, where they can begin to function and multiply. For a patient's body to accept these healthy cells, the patient needs a donor who is a close match. Seventy percent of patients cannot find a matching donor within their family and depend on the national registry to find an unrelated bone marrow donor. Even with a registry of millions, 6 out of 10 patients NEVER receive the lifesaving transplant they need. Donors of all ethnicities are needed to change this. To see if you can be a bone marrow donor and to read about the process of testing and donating, go to http://www.dkmsamericas.org and click on Get Educated.

More here:
ASUN to host Bone Marrow Donor Drive

To Read More: ASUN to host Bone Marrow Donor Drive
categoriaBone Marrow Stem Cells commentoComments Off on ASUN to host Bone Marrow Donor Drive | dataMarch 28th, 2012
Read All

Appeals court stands united on compensation for bone marrow donors

By NEVAGiles23

Displaying rare unanimity on an issue, the full U.S. 9th Circuit Court of Appeals on Tuesday rejected a request by the federal government thatit reconsidera rulingthat most bone marrow donors can be compensated for providing life-saving marrow stem cells from their blood.

A three-judge panel of the appeals court ruled on Dec. 1 that the process of harvesting marrow cells by filtering a donor's blood wasn't covered by the 1984 National Organ Transplant Act's prohibitionof payment for organs or organ parts.The statute was enacted by Congress before the blood-filtering process was developed and donors were subjected to painful and medically risky surgical extraction of marrow by insertion of a siphoning needle into the hip bone. Compensation for that form of donation remains illegal.

Atty. Gen. Eric H. Holder Jr., on behalf of the federal government, petitioned the court in Januaryfor a new hearing by an 11-judge panel. Department of Justice lawyers argued that the December ruling ignored the clear intent of Congress to prevent money from influencing donation decisions.

The 9th Circuit panel said in its latest ruling thatall 25 active judges on the court were informed of the government's request and none called for a vote on it, signaling their agreement with the December decision. That unusualaccord among the judges who span a broad ideological spectrum might also indicate that the U.S. Supreme Court will be unlikely to take the case for review.

The lawsuit challenging the ban on bone marrow compensation was brought by a group of cancer patients and their families, as well as a marrow transplant specialist and a California nonprofit organization, MoreMarrowDonors.org, aiming to expand the registry of available donors by offering up to $3,000 in housing assistance or scholarships for promising genetic matches.

Violation of the organ transplant act's prohibition on sales of organs or parts thereofcarries heavy fines and up to five years in prison.The 1984 act defined bone marrow as an organ part, while the 9th Circuit's ruling said it was a blood part and not subject to theban on compensation.

ALSO:

Mega Millions lottery jackpot soars to $363 million

Trayvon Martin: L.A. rallies voice outrage at shooting

First defendants graduate from L.A. County Veterans Court

More:
Appeals court stands united on compensation for bone marrow donors

To Read More: Appeals court stands united on compensation for bone marrow donors
categoriaBone Marrow Stem Cells commentoComments Off on Appeals court stands united on compensation for bone marrow donors | dataMarch 28th, 2012
Read All

Bone marrow stem cells can improve heart function, study suggests

By NEVAGiles23

ScienceDaily (Mar. 26, 2012) A research network led by a Mayo Clinic physician found that stem cells derived from heart failure patients' own bone marrow and injected into their hearts improved the function of the left ventricle, the heart's pumping chamber. Researchers also found that certain types of the stem cells were associated with the largest improvement and warrant further study.

The results were presented March 26 at the 2012 American College of Cardiology Meeting in Chicago. They will also be published online in the Journal of the American Medical Association.

This Phase II clinical trial, designed to test this strategy to improve cardiac function, is an extension of earlier efforts in Brazil in which a smaller number of patients received fewer stem cells. For this new network study, 92 patients received a placebo or 100 million stem cells derived from the bone marrow in their hips in a one-time injection. This was the first study in humans to deliver that many bone marrow stem cells.

"We found that the bone marrow cells did not have a significant impact on the original end points that we chose, which involved reversibility of a lack of blood supply to the heart, the volume of the left ventricle of the heart at the end of a contraction, and maximal oxygen consumption derived through a treadmill test," says Robert Simari, M.D., a cardiologist at Mayo Clinic in Rochester, Minn. He is chairman of the Cardiovascular Cell Therapy Research Network (CCTRN), the network of five academic centers and associated satellite sites that conducted the study. The CCTRN is supported by the National Heart, Lung, and Blood Institute, which also funded the study.

"But interestingly, we did find that the very simple measure of ejection fraction was improved in the group that received the cells compared to the placebo group by 2.7 percent," Dr. Simari says. Ejection fraction is the percentage of blood pumped out of the left ventricle during each contraction.

Study principal investigators Emerson Perin, M.D., Ph.D., and James Willerson, M.D., of the Texas Heart Institute, explain that even though 2.7 percent does not seem like a large number, it is statistically significant and means an improvement in heart function for chronic heart failure patients who have no other options.

"This was a pretty sick population," Dr. Perin says. "They had already had heart attacks, undergone bypass surgery, and had stents placed. However, they weren't at the level of needing a heart transplant yet. In some patients, particularly those who were younger or whose bone marrows were enriched in certain stem cell populations, had even greater improvements in their ejection fractions."

The average age of study participants was 63. The researchers found that patients younger than 62 improved more. Their ejection fraction improved by 4.7 percent. The researchers looked at the makeup of these patients' stem cells from a supply stored at a biorepository established by the CCTRN. They found these patients had more CD34+ and CD133+ type of stem cells in their mixture.

"This tells us that the approach we used to deliver the stems cells was safe," Dr. Simari says. "It also suggests new directions for the next series of clinical trials, including the type of patients, endpoints to study and types of cells to deliver."

Other co-authors of the study are Guilherme Silva, M.D., Deirdre Smith, Lynette Westbrook; and James Chen, all of the Texas Heart Institute, St. Luke's Episcopal Hospital, Houston; Carl Pepine, M.D., R. David Anderson, M.D., Christopher Cogle, M.D., and Eileen Handberg, Ph.D., all of the University of Florida School of Medicine, Gainesville; Timothy Henry, M.D., Jay Traverse, M.D., and Rachel Olson, all of the Minneapolis Heart Institute at Abbott Northwestern Hospital; Doris Taylor, Ph.D., and Claudia Zierold, Ph.D., both of the University of Minnesota School of Medicine, Minneapolis; Stephen Ellis, M.D., James Thomas, M.D., and Carrie Geither, all of The Cleveland Clinic Foundation, Ohio; David Zhao, M.D., Marvin Kornenberg, M.D., Antonis Hatzopoulos, Ph.D., Sherry Bowman, and Judy Francescon, all of Vanderbilt University School of Medicine, Tennessee; Dejian Lai, Ph.D., Sarah Baraniuk, Ph.D., Linda Piller, M.D., Lara Simpson, Ph.D., Judy Bettencourt, Shelly Sayre, Rachel Vojvodic, and Lemuel Moye, M.D., Ph.D., all of The University of Texas School of Public Health, Houston; A. Daniel Martin, Ph.D., of the University of Florida College of Public Health and Health Professions, Gainesville; Marc Penn, M.D., Ph.D., of Northeast Ohio Medical University, Akron; Saif Anwaruddin, M.D., of Penn Heart and Vascular Hospital of the University of Pennsylvania, Philadelphia; Adrian Gee, Ph.D., and David Aguilar, M.D., of Baylor College of Medicine, Houston; Catalin Loghin, M.D., of The University of Texas Medical School, Houston; and Sonia Skarlatos, Ph.D., David Gordon, M.D., Ph.D., Ray Ebert, Ph.D., and Minjung Kwak, Ph.D., all of the National Heart, Lung and Blood Institute, Bethesda, MD.

More:
Bone marrow stem cells can improve heart function, study suggests

To Read More: Bone marrow stem cells can improve heart function, study suggests
categoriaBone Marrow Stem Cells commentoComments Off on Bone marrow stem cells can improve heart function, study suggests | dataMarch 27th, 2012
Read All

Bone marrow stem cells improve heart function, study finds

By Sykes24Tracey

Public release date: 24-Mar-2012 [ | E-mail | Share ]

Contact: Traci Klein newsbureau@mayo.edu 507-284-5005 Mayo Clinic

CHICAGO -- A research network led by a Mayo Clinic physician found that stem cells derived from heart failure patients' own bone marrow and injected into their hearts improved the function of the left ventricle, the heart's pumping chamber. Researchers also found that certain types of the stem cells were associated with the largest improvement and warrant further study.

The results were presented today at the 2012 American College of Cardiology Meeting in Chicago. They will also be published online in the Journal of the American Medical Association.

This Phase II clinical trial, designed to test this strategy to improve cardiac function, is an extension of earlier efforts in Brazil in which a smaller number of patients received fewer stem cells. For this new network study, 92 patients received a placebo or 100 million stem cells derived from the bone marrow in their hips in a one-time injection. This was the first study in humans to deliver that many bone marrow stem cells.

"We found that the bone marrow cells did not have a significant impact on the original end points that we chose, which involved reversibility of a lack of blood supply to the heart, the volume of the left ventricle of the heart at the end of a contraction, and maximal oxygen consumption derived through a treadmill test," says Robert Simari, M.D., a cardiologist at Mayo Clinic in Rochester, Minn. He is chairman of the Cardiovascular Cell Therapy Research Network (CCTRN), the network of five academic centers and associated satellite sites that conducted the study. The CCTRN is supported by the National Heart, Lung, and Blood Institute, which also funded the study.

"But interestingly, we did find that the very simple measure of ejection fraction was improved in the group that received the cells compared to the placebo group by 2.7 percent," Dr. Simari says. Ejection fraction is the percentage of blood pumped out of the left ventricle during each contraction.

Study principal investigators Emerson Perin, M.D., Ph.D., and James Willerson, M.D., of the Texas Heart Institute, explain that even though 2.7 percent does not seem like a large number, it is statistically significant and means an improvement in heart function for chronic heart failure patients who have no other options.

"This was a pretty sick population," Dr. Perin says. "They had already had heart attacks, undergone bypass surgery, and had stents placed. However, they weren't at the level of needing a heart transplant yet. In some patients, particularly those who were younger or whose bone marrows were enriched in certain stem cell populations, had even greater improvements in their ejection fractions."

The average age of study participants was 63. The researchers found that patients younger than 62 improved more. Their ejection fraction improved by 4.7 percent. The researchers looked at the makeup of these patients' stem cells from a supply stored at a biorepository established by the CCTRN. They found these patients had more CD34+ and CD133+ type of stem cells in their mixture.

Go here to read the rest:
Bone marrow stem cells improve heart function, study finds

To Read More: Bone marrow stem cells improve heart function, study finds
categoriaBone Marrow Stem Cells commentoComments Off on Bone marrow stem cells improve heart function, study finds | dataMarch 26th, 2012
Read All

Stem cell, heart heath study

By JoanneRUSSELL25

HOUSTON -

Doctors from the Texas Heart Institute at St. Luke's Episcopal Hospital have found that patients with heart failure may be able to repair the damaged areas of the heart with stem cells from the patient's own bone marrow.

Doctors presented the findings at the American College of Cardiologys 61st Annual Scientific Session Saturday.

The results are from a multi-center clinical study that measured the possible benefits of using a patients own bone marrow cells to repair damaged areas of the heart suffering from severe heart failure, a condition that affects millions of Americans.

The study, which was the largest such investigation to date, found that the hearts of the patients receiving bone marrow derived stem cells showed a small but significant increase in the ability to pump oxygenated blood from the left ventricle, the hearts main pumping chamber, to the body.

The expectation is that the study will pave the way for potential new treatment options and will be important to designing and evaluating future clinical trials.

This is exactly the kind of information we need to move forward with the clinical use of stem cell therapy, said Emerson Perin, MD, PhD, Director of Clinical Research for Cardiovascular Medicine at THI, and one of the studys lead investigators.

The bone-marrow derived stem cells are helpful to the injured heart when they are themselves biologically active, added Dr. James T. Willerson, the studys principal investigator and President and Medical Director of THI.

This study moves us one step closer to being able to help patients with severe heart failure who have no other alternatives.

The study was conducted by the Cardiovascular Cell Therapy Research Network, the national consortium to conduct such research funded by the National Institutes of Healths National Heart, Lung, and Blood Institute.

Follow this link:
Stem cell, heart heath study

To Read More: Stem cell, heart heath study
categoriaBone Marrow Stem Cells commentoComments Off on Stem cell, heart heath study | dataMarch 25th, 2012
Read All

Health Notes: UVA performs first stem cell transplants in Virginia

By Sykes24Tracey

By Prue Salasky

3:48 p.m. EDT, March 23, 2012

UVA recently performed the first two stem cell transplants in Virginia, using non-embryonic stem cells from umbilical cord blood. The Stem Cell Transplant Program offers both bone marrow and stem cell transplants, with a focus on cord blood, to treat leukemia, lymphoma, Hodkin's disease and other blood diseases.

The outcome isn't known yet, but in both patients the stem cells began producing new cells 14 days after the transplant instead of the 24 to 28 days it usually takes.

The cord blood comes from placentas that otherwise would be discarded following childbirth; its benefits include sidestepping ethical issues of embryonic stem cells; they're easier and faster to collect than stem cells from other sources; and they are immune tolerant (this means that they won't attack other cells in the body and match doesn't have to be exact).

Speed is important because there is a narrow window of opportunity to perform a transplant when a patient's disease is in remission.

The program is led by Mary Laughlin, who heads up a team of 29, including 4 other transplant physicians who started seeing patients in September. The program had anticipated doing 15 transplants in first year; now expects to do 100.

Link:
Health Notes: UVA performs first stem cell transplants in Virginia

To Read More: Health Notes: UVA performs first stem cell transplants in Virginia
categoriaBone Marrow Stem Cells commentoComments Off on Health Notes: UVA performs first stem cell transplants in Virginia | dataMarch 25th, 2012
Read All

Study examines treatment of heart failure with bone marrow cells

By Dr. Matthew Watson

Public release date: 24-Mar-2012 [ | E-mail | Share ]

Contact: Jade Waddy Jade.Waddy@uth.tmc.edu 713-500-3030 JAMA and Archives Journals

Use of a patient's bone marrow cells for treating chronic ischemic heart failure did not result in improvement on most measures of heart function, according to a study appearing in JAMA. The study is being published early online to coincide with its presentation at the American College of Cardiology's annual scientific sessions.

Cell therapy has emerged as an innovative approach for treating patients with advanced ischemic heart disease, including those with heart failure. "In patients with ischemic heart disease and heart failure, treatment with autologous [derived from the same individual] bone marrow mononuclear cells (BMCs) has demonstrated safety and has suggested efficacy. None of the clinical trials performed to date, however, have been powered to evaluate specific efficacy measures," according to background information in the article.

Emerson C. Perin, M.D., Ph.D., of the Texas Heart Institute and St. Luke's Episcopal Hospital, Houston and colleagues conducted a study to examine the effect of transendocardial administration (use of a special catheter and injection procedure to deliver stem cells to the heart muscle) of BMCs to patients with chronic ischemic heart disease and left ventricular (LV) dysfunction with heart failure and/or angina. The patients in the phase 2 randomized trial were receiving maximal medical therapy at 5 National Heart, Lung, and Blood Institutesponsored Cardiovascular Cell Therapy Research Network (CCTRN) sites between April 2009 and April 2011. Patients were randomized to receive transendocardial injection of BMCs or placebo. The primary outcomes measured for the study, assessed at 6 months, were changes in left ventricular end-systolic volume (LVESV) assessed by echocardiography, maximal oxygen consumption, and reversibility of perfusion (blood flow) defect on single-photon emission tomography (SPECT). Of 153 patients who provided consent, a total of 92 (82 men; average age: 63 years) were randomized (n = 61 in BMC group and n = 31 in placebo group).

Analysis of data indicated no statistically significant differences between the groups for the primary end points of changes in LVESV index, maximal oxygen consumption, and reversible defect. There were also no differences in any of the secondary outcomes, including percent myocardial defect, total defect size, fixed defect size, regional wall motion (the movement of the wall of the heart during contraction), and clinical improvement.

In an exploratory analysis, the researchers did find that when LVEF was assessed, patients age 62 years or younger showed a statistically significant effect of therapy. Patients in the BMC group demonstrated an average increase in LVEF of 3.1 percent from baseline to 6 months, whereas patients in the placebo group showed a decrease of 1.6 percent.

"In the largest study to date of autologous BMC therapy in patients with chronic ischemic heart disease and LV dysfunction, we found no effect of therapy on prespecified end points. Further exploratory analysis showed a significant improvement in LVEF associated with treatment. Our findings provide evidence for further studies to determine the relationship between the composition and function of bone marrow product and clinical end points. Understanding these relationships will improve the design and interpretation of future studies of cardiac cell therapy," the authors write.

###

(JAMA. 2012;307(16):doi:10.1001/jama.2012.418. Available pre-embargo to the media at http://www.jamamedia.org)

View post:
Study examines treatment of heart failure with bone marrow cells

To Read More: Study examines treatment of heart failure with bone marrow cells
categoriaBone Marrow Stem Cells commentoComments Off on Study examines treatment of heart failure with bone marrow cells | dataMarch 25th, 2012
Read All

Treatment of ischemic heart failure with bone marrow cells does not show improvement for certain heart function measures

By Dr. Matthew Watson

ScienceDaily (Mar. 24, 2012) Use of a patient's bone marrow cells for treating chronic ischemic heart failure did not result in improvement on most measures of heart function, according to a study appearing in JAMA. The study is being published early online to coincide with its presentation at the American College of Cardiology's annual scientific sessions.

Cell therapy has emerged as an innovative approach for treating patients with advanced ischemic heart disease, including those with heart failure. "In patients with ischemic heart disease and heart failure, treatment with autologous [derived from the same individual] bone marrow mononuclear cells (BMCs) has demonstrated safety and has suggested efficacy. None of the clinical trials performed to date, however, have been powered to evaluate specific efficacy measures," according to background information in the article.

Emerson C. Perin, M.D., Ph.D., of the Texas Heart Institute and St. Luke's Episcopal Hospital, Houston and colleagues conducted a study to examine the effect of transendocardial administration (use of a special catheter and injection procedure to deliver stem cells to the heart muscle) of BMCs to patients with chronic ischemic heart disease and left ventricular (LV) dysfunction with heart failure and/or angina. The patients in the phase 2 randomized trial were receiving maximal medical therapy at 5 National Heart, Lung, and Blood Institute-sponsored Cardiovascular Cell Therapy Research Network (CCTRN) sites between April 2009 and April 2011. Patients were randomized to receive transendocardial injection of BMCs or placebo. The primary outcomes measured for the study, assessed at 6 months, were changes in left ventricular end-systolic volume (LVESV) assessed by echocardiography, maximal oxygen consumption, and reversibility of perfusion (blood flow) defect on single-photon emission tomography (SPECT). Of 153 patients who provided consent, a total of 92 (82 men; average age: 63 years) were randomized (n = 61 in BMC group and n = 31 in placebo group).

Analysis of data indicated no statistically significant differences between the groups for the primary end points of changes in LVESV index, maximal oxygen consumption, and reversible defect. There were also no differences in any of the secondary outcomes, including percent myocardial defect, total defect size, fixed defect size, regional wall motion (the movement of the wall of the heart during contraction), and clinical improvement.

In an exploratory analysis, the researchers did find that when LVEF was assessed, patients age 62 years or younger showed a statistically significant effect of therapy. Patients in the BMC group demonstrated an average increase in LVEF of 3.1 percent from baseline to 6 months, whereas patients in the placebo group showed a decrease of -1.6 percent.

"In the largest study to date of autologous BMC therapy in patients with chronic ischemic heart disease and LV dysfunction, we found no effect of therapy on prespecified end points. Further exploratory analysis showed a significant improvement in LVEF associated with treatment. Our findings provide evidence for further studies to determine the relationship between the composition and function of bone marrow product and clinical end points. Understanding these relationships will improve the design and interpretation of future studies of cardiac cell therapy," the authors write.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:

Story Source:

The above story is reprinted from materials provided by JAMA and Archives Journals.

See the article here:
Treatment of ischemic heart failure with bone marrow cells does not show improvement for certain heart function measures

To Read More: Treatment of ischemic heart failure with bone marrow cells does not show improvement for certain heart function measures
categoriaBone Marrow Stem Cells commentoComments Off on Treatment of ischemic heart failure with bone marrow cells does not show improvement for certain heart function measures | dataMarch 25th, 2012
Read All

Labs Report 85 Percent Reduction in STR Analysis Time with SoftGenetics' ChimerMaker Software

By NEVAGiles23

By Uduak Grace Thomas

Users of ChimerMarker, a short tandem repeat chimerism analysis software solution marketed by SoftGenetics, are reporting a significant reduction in the time required to analyze STRs in blood samples of patients who have undergone bone marrow transplants.

The tool automates the process of assessing the chimerism ratio the proportion of donor cells relative to the host patients own cells in post-transplant cases based on the presence of STRs that are unique to both the patient and the donor, Don Kristt, head of molecular pathology at the Rabin Medical Center in Israel, explained to BioInform this week.

According to SoftGenetics, the software can be used to monitor chimerism levels in allogeneic and autologous stem cell transplants or hematopoietic stem cell transplants; bone marrow transplants; and cord and peripheral blood stem cell transplant samples.

SoftGenetics partnered with Kristt to develop the software, which it released last March (BI 3/18/2011). The company later added a module for testing fetal samples for maternal cell contamination prior to performing genetic testing for cystic fibrosis or other diseases (BI 9/2/2011).

The software provides capabilities for genotyping and chimerism analysis and tools to automatically identify donor and recipient peaks in samples following bone marrow transplants. It also calculates percent chimerism and quality metrics for single donor or double donor cases.

Dawn Wagenknecht, who supervises the HLA-Vascular Biology Laboratory at Franciscan St. Francis Health, told BioInform this week that her team was able to reduce the time required to calculate the ratio of donor to recipient cells in blood samples by as much as 85 percent.

She explained that the team ran parallel analyses of 10 blood samples using both ChimerMarker and a manual approach that the lab had used prior to purchasing the software, which involved manually sorting data generated by capillary sequencing in Excel spreadsheets, and then calculating the ratios either on the sheet or using a hand calculator.

In addition to the time savings, ChimerMarker also simplifies the analysis process because all the steps of the workflow are in a single package, she said.

The software also maintains records of the donor sample and the patients blood before transplantation so that the results from subsequent tests after transplant can be compared to the initial samples, she said.

The rest is here:
Labs Report 85 Percent Reduction in STR Analysis Time with SoftGenetics' ChimerMaker Software

To Read More: Labs Report 85 Percent Reduction in STR Analysis Time with SoftGenetics' ChimerMaker Software
categoriaBone Marrow Stem Cells commentoComments Off on Labs Report 85 Percent Reduction in STR Analysis Time with SoftGenetics' ChimerMaker Software | dataMarch 24th, 2012
Read All

Stem Cell Transplant Program Offered at UVA Medical Center

By daniellenierenberg

What used to be medical trash is now treating cancer. The University of Virginia's Medical Center is the first place in Virginia to take advantage of stem cells from umbilical cords and they are pleased with the results.

Dr. Mary Laughlin, the director of stem cell transplantation at UVA,said, "These are cells that are routinely thrown away, these cells save lives."

A lab within the UVA Medical Center contains numerous tubes where non-embryonic stem cells reside. They come from umbilical cord blood and give hope topatients suffering leukemia, multiple myeloma and lymphoma.

Dr. Laughlin added, "They can completely replace a patient's bone marrow in the immune system. Oneof 10 cancer patients are able to find those cells through existing adult registries."

Thefive million babies that are born each year will soon solve that problem. The cells that are normally tossed out attack cancer cells.

Denise Mariconda, a nurse within the stem cell transplant program, stated, "It looks like a blood transfusion." Dr. Laughlin added, "It is in many ways like a cancer vaccine."

The first transplants were made in January and the transplant program at the UVA Medical Center admits it takes getting used to.

Mariconda said, "It is a process that's not like having your heart fixed in a one-day setting and you know that it's better."

These cells are not cause for controversy. Dr. Laughlin said, "Use of cord-blood is approved by all religious groups including the Vatican."

Babies' immune systems are not fully educated at the time of birth, making these cells effective. Dr. Laughlin, added, "That allows us to cross transplant barriers."

Read this article:
Stem Cell Transplant Program Offered at UVA Medical Center

To Read More: Stem Cell Transplant Program Offered at UVA Medical Center
categoriaBone Marrow Stem Cells commentoComments Off on Stem Cell Transplant Program Offered at UVA Medical Center | dataMarch 23rd, 2012
Read All

Armenians can help save a life

By NEVAGiles23

Debbi Margosian Chapmans family hopes you will and is offering $10,000 to the person who is a bone marrow match for her to treat her leukemia. Because Debbi is Armenian, her doctors believe her best chances of finding a match is with the Armenian community.

Please join Dr. Frieda Jordan, president of the Armenian Bone Marrow Donor Registry (ABMDR), on Saturday, March 24, at 7 p.m., at the Armenian Cultural and Educational Center, 47 Nichols Avenue, Watertown, Massachusetts, for a presentation and bone marrow drive and become a hero for Debbi or the many other Armenians with blood cancers. If youre between 18-50 years old, you just need to give a quick swab of your cheeks so you can be entered into the Armenian Bone Marrow Donor Registry. If you are a match, in the majority of cases, your stem cells will be harvested in a manner similar to giving bloodthere is no anesthesia or surgery.

If you cant make it to the drive but want to be tested, please visit http://debbichapman.wordpress.com for more information.

Read the original:
Armenians can help save a life

To Read More: Armenians can help save a life
categoriaBone Marrow Stem Cells commentoComments Off on Armenians can help save a life | dataMarch 22nd, 2012
Read All

Powerful new cells cloned: Key to immune system disease could lie inside the cheek

By JoanneRUSSELL25

ScienceDaily (Mar. 21, 2012) Powerful new cells created by Cardiff scientists from cheek lining tissue could offer the answer to disorders of the immune system. While the body's immune system protects against many diseases, it can also be harmful. Using white blood cells (lymphocytes), the system can attack insulin-producing cells, causing diabetes, or cause the body to reject transplanted organs.

A team from the School of Dentistry led by Professor Phil Stephens, with colleagues from Stockholm's Karolinska Institute, have found a new group of cells with a powerful ability to suppress the immune system's action.

The team took oral lining cells from the insides of patients' cheeks and cloned them. Laboratory tests showed that even small doses of the cells could completely inhibit the lymphocytes.

The breakthrough suggests that the cheek cells have wide-ranging potential for future therapies for immune system-related diseases. Existing immune system research has focused on adult stem cells, particularly those derived from bone marrow. The cheek tissue cells are much stronger in their action.

Dr Lindsay Davies, a member of the Cardiff team, said: "At this stage, these are only laboratory results. We have yet to recreate the effect outside the laboratory and any treatments will be many years away. However, these cells are extremely powerful and offer promise for combating a number of diseases. They are also easy to collect -- bone marrow stem cells require an invasive biopsy, whereas we just harvest a small biopsy from inside the mouth."

The findings have just been published online in Stem Cells and Development. The team has now been funded by the Medical Research Council to investigate the cloned cells further.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:

Story Source:

The above story is reprinted from materials provided by Cardiff University.

Follow this link:
Powerful new cells cloned: Key to immune system disease could lie inside the cheek

To Read More: Powerful new cells cloned: Key to immune system disease could lie inside the cheek
categoriaBone Marrow Stem Cells commentoComments Off on Powerful new cells cloned: Key to immune system disease could lie inside the cheek | dataMarch 22nd, 2012
Read All

First Stem Cell Transplants in Virginia Performed at UVA

By Sykes24Tracey

The Stem Cell Transplant Program at the University of Virginia Health System recently performed the first two stem cell transplants in Virginia, using non-embryonic stem cells from umbilical cord blood.

The program offers both bone marrow and stem cell transplants, with a focus on cord blood, to treat leukemia, lymphoma, Hodgkins disease and other blood diseases.

While it will take several months to know how effective the cord blood transplants were, the initial results are promising, says Mary Laughlin, MD, an internationally known stem cell expert recruited to UVA to head the program. In both patients, the stem cells began engrafting producing new cells 14 days after the transplant instead of the 24 to 28 days it normally takes.

Why cord blood stem cells? As an obstetrician once told Laughlin: Something thrown away in my OB suite saves a life in your cancer suite.

The cord blood used for these stem cell transplants comes from placentas that otherwise would be discarded following childbirth, Laughlin says. The cord blood is used with the permission of the new parents, she says. By using cord blood stem cells instead of embryonic stem cells, UVAs program sidesteps the ethical, religious and political concerns commonly associated with stem cells, she says.

Other benefits: Cord blood stem cells are also faster and easier to collect than stem cells from other sources; they are also immune tolerant.

Speed is important because there is a narrow window of opportunity to perform a transplant when a patients disease is in remission. And because the cord blood stem cells are immune tolerant meaning they will not attack other cells in the body the chances of a successful transplant are higher and the donor match doesnt have to be as exact, giving more patients the opportunity to receive a transplant.

Stem cell transplants: Part of a fast-growing program Laughlin heads up a team of 29 staff members, including four additional transplant physicians, who began seeing patients in September. The demand for transplants has already been greater than Laughlin and her team expected. The program had initially planned to do 15 transplants in its first year. Instead, it expects to do 100.

Its reflective of this unmet need, Laughlin says. Patients who otherwise would have to travel many states away to have these same procedures, now they can do a fairly short drive from Roanoke, or down from Winchester. Because of our central location, its ideal for them.

What are stem cells? Learn more about how they work.

More here:
First Stem Cell Transplants in Virginia Performed at UVA

To Read More: First Stem Cell Transplants in Virginia Performed at UVA
categoriaBone Marrow Stem Cells commentoComments Off on First Stem Cell Transplants in Virginia Performed at UVA | dataMarch 22nd, 2012
Read All

Use of stem cells for adults receiving related donor kidney transplants appears to improve outcomes

By NEVAGiles23

Public release date: 20-Mar-2012 [ | E-mail | Share ]

Contact: Omar Montejo omontejo@miami.edu 305-243-5654 JAMA and Archives Journals

CHICAGO Among patients with end-stage renal disease undergoing living-related kidney transplants, the use of bone-marrow derived mesenchymal (cells that can differentiate into a variety of cell types) stem cells instead of antibody induction therapy resulted in a lower incidence of acute rejection, decreased risk of opportunistic infection, and better estimated kidney function at 1 year, according to a study in the March 21 issue of JAMA.

Induction therapy, routinely implemented in organ transplant procedures, consists of use of biologic agents to block early immune activation. New induction immunosuppressive protocols with increased efficacy and minimal adverse effects are desirable. "Antibody-based induction therapy plus calcineurin inhibitors (CNIs) reduce acute rejection rates in kidney recipients; however, opportunistic infections and toxic CNI effects remain challenging. Reportedly, mesenchymal stem cells (MSCs) have successfully treated graft-vs.-host disease," according to background information in the article.

Jianming Tan, M.D., Ph.D., of Xiamen University, Fuzhou, China and colleagues examined the effect of autologous (derived from the same individual) MSC infusion as an alternative to anti-IL-2 receptor antibody for induction therapy in adults undergoing living-related donor kidney transplants. The randomized study included 159 patients. Patients were inoculated with marrow-derived autologous MSC at kidney reperfusion and two weeks later. Fifty-three patients received standard-dose and 52 patients received low-dose CNIs (80 percent of standard); 51 patients in the control group received anti-IL-2 receptor antibody plus standard-dose CNIs.

Patient and graft survival at 13 to 30 months was similar in all groups. The researchers found that after 6 months, 4 of 53 patients (7.5 percent) in the autologous MSC plus standard-dose CNI group and 4 of 52 patients (7.7 percent) in the low-dose group compared with 11 of 51 controls (21.6 percent) had biopsy-confirmed acute rejection. Renal function recovered faster among both MSC groups showing increased estimated glomerular filtration rate (eGFR; a measure of kidney function) levels during the first month after surgery than the control group.

The authors also found that during the 1-year follow-up, combined analysis of MSC-treated groups revealed significantly decreased risk of opportunistic infections than the control group.

"In our prospective randomized trial on a large patient population, autologous MSCs could replace anti-IL-2 receptor-induction therapy in living-related donor kidney transplants. Recipients of autologous MSCs showed lower frequency of biopsy-confirmed acute rejection in the first 6 months than the control group," the researchers write.

"Extended monitoring of study participants will allow assessment of the long-term effects of autologous MSCs on renal allograft function, survival, and safety."

###

Read this article:
Use of stem cells for adults receiving related donor kidney transplants appears to improve outcomes

To Read More: Use of stem cells for adults receiving related donor kidney transplants appears to improve outcomes
categoriaBone Marrow Stem Cells commentoComments Off on Use of stem cells for adults receiving related donor kidney transplants appears to improve outcomes | dataMarch 21st, 2012
Read All

In Treatment of Child’s Heart Defect, Doctors Find a Stem-Cell Surprise

By NEVAGiles23

By Ron Winslow

Doctors at Yale University have successfully implanted a biodegradablescaffold seeded with a four-year-old girls own bone-marrowcells to help treat a serious heart defect, as WSJs Heartbeat column describes.

The tube about three inches long is made of polyester material similar to that used in the manufacture of dissolvable sutures. Six months after Angela Irizarrys surgery, it had disappeared, replaced by a bioengineered conduit that acts like a normal blood vessel.

The vanishing act for the scaffold was expected, but what happens to the cells, including stem cells, that spawned the new vessel?

Much to the researchers surprise, says Chris Breuer, the Yale pediatric surgeon leading the experimental tissue-engineering project, the cells go away too.

Stem cells and certain other bone-marrow cells have building-block properties that make them the foundation for more specialized cells that grow into the bodys various tissues and structures. Researchers have long believed that stem cells transplanted into heart tissue, for instance, would be a primary component of whatever new tissue that grew as a result.

A lot of people think that when you put cells in, they turn into whatever cells you want them to turn into, Breuer tells the Health Blog. Weve clearly shown that doesnt happen in our graft.

Indeed, in experiments performed to learn how the tubes morphed into blood vessels, Breuer and his colleagues transplanted their scaffold seeded with human cells into mice bred with deficient immune systems to prevent rejection of the cells. Within a few days, the human cellswere gone, replaced within the scaffold by mouse cells, including cells characteristic of those that line the inner wall of blood vessels.

Initially, I refused to believe it, Breuer says. I redid the experiment three different ways and saw the same thing every time.

The upshot: Transplanted cells that have a quality of stem cells dont buildnew parts themselves, he says.They cause the body to induce regeneration.

Continue reading here:
In Treatment of Child’s Heart Defect, Doctors Find a Stem-Cell Surprise

To Read More: In Treatment of Child’s Heart Defect, Doctors Find a Stem-Cell Surprise
categoriaBone Marrow Stem Cells commentoComments Off on In Treatment of Child’s Heart Defect, Doctors Find a Stem-Cell Surprise | dataMarch 21st, 2012
Read All

Page 140«..1020..139140141142..»


Copyright :: 2024