Apple Stem Cells Offer Hope for Aging and Damaged Skin – Life …

By raymumme

As we age, the reduced turnover of our cells means we can lose control over how our skin ages. Epidermal stem cells needed to create healthy new skin are significantly reduced and function less efficiently. A discovery based on promising plant stem cell research may allow you to regain control.

Scientists have found that a novel extract derived from the stem cells of a rare apple tree cultivated for its extraordinary longevity shows tremendous ability to rejuvenate aging skin. By stimulating aging skin stem cells, this plant extract has been shown to lessen the appearance of unsightly wrinkles. Clinical trials show that this unique formulation increases the longevity of skin cells, resulting in skin that has a more youthful and radiant appearance.

Cells in our bodies are programmed for specific functions. A skin cell, a brain cell, and a liver cell all contain the same DNA, or set of genes. However, each cells fate is determined by a set of epigenetic (able to change gene expression patterns) signals that come from inside it and from the surrounding cells as well. These signals are like command tags attached to the DNA that switch certain genes on or off.

This selective coding creates all of the different kinds of cells in our bodies, which are collectively known as differentiated (specialized) cells.

Although differentiated cells vary widely in purpose and appearance, they all have one thing in common: they all come with a built-in operational limit. After so many divisions, they lose their ability to divide and must be replaced. This is where stem cells come in.

Your body also produces other cells that contain no specific programming. These stem cells are blank, so your body can essentially format them any way it pleases. Two universal aspects shared by this type of cell are: (1) the ability to replenish itself through a process of self-renewal and (2) the capacity to produce a differentiated cell.

In animals and humans, two basic kinds of stem cells exist: embryonic and adult stem cells. Embryonic stem cells have the power to change into any differentiated cell type found anywhere in your body. Adult stem cells, on the other hand, are generally more limited. They can only evolve into the specific type of cell found in the tissue where they are located. The primary function of these adult stem cells is maintenance and repair.

But certain adult stem cells found in nature retain the unlimited developmental potential that embryonic stem cells possess. These cells have become the main focus for an exciting new wave of regenerative medicine (repairing damaged or diseased tissues and organs using advanced techniques like stem cell therapy and tissue engineering).

The basal (innermost) layer of the skins epidermis comprises two basic types of cells: (1) the slowly dividing epidermal stem cells (that represent about 2-7% of the basal cell population) and (2) their rapidly dividing offspring that supply new cells to replace those that are lost or dying.1-3

The slow self-renewal process of epidermal stem cells, however, creates a problem. Because each epidermal stem cell only lasts for a certain number of divisions, and because each division runs the risk of lethal DNA mutation, the epidermal stem cell population can become depleted. When this happens, lost or dying skin cells begin to outnumber their replacements and the skins health and appearance start to decline.

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categoriaSkin Stem Cells commentoComments Off on Apple Stem Cells Offer Hope for Aging and Damaged Skin – Life … | dataDecember 6th, 2013

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