By Joseph Panno
Makes an attempt to appreciate the getting older approach have generated loads of theories yet few useful cures. conventional cures deal with age-related illnesses akin to melanoma and arthritis yet don't opposite the getting older approach itself. a standard pattern in gerontology is to look for genes that experience a demonstrable impact on lifespan, the so-called durability genes. Many such genes were pointed out, and even if the manipulation of those genes doesn't cease the getting older approach, they supply many important insights into the mobile mechanisms of getting older. extra lately, curiosity has became to using cloning know-how, stem telephone research, and genetic manipulation in an effort to produce a good rejuvenation treatment for cells and the physique as a complete.
getting older, Revised version describes the sector of gerontology and the various theories that scientists have built through the years to provide an explanation for the age-related adjustments that ensue in approximately all animals.
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Extra resources for Aging. Modern theories and therapies
Other expression studies, however, carried out on rat, Drosophila, and housefly tissues did not produce the striking results that most scientists were expecting. The expression of some genes was shown to increase with age while others decreased, but there was no obvious connection to cellular senescence. Even worse, the expression of some genes was shown to decrease with age in the rat, but not in Drosophila or the mouse. Since the aging process should be similar for all animals, 24 AGING those genes could not be the cause of a universal aging mechanism.
This analysis indicated that certain neurons in the housefly brain (type II) were aging at the highest rate, followed by muscle, and Malpighian tubule (insect kidney). Interestingly, not all of the neurons were aging at the type II rate. Most of the neurons examined were aging at the more leisurely pace observed in the Malpighian tubule. The existence of aging mosaics is extremely important. At the population level, long-lived individuals can be compared to their Aging Characteristics 35 short-lived brethren in the hope of identifying the factors that are responsible for the difference, and at the same time shed some light on the nature of the aging process itself.
Interestingly, not all of the neurons were aging at the type II rate. Most of the neurons examined were aging at the more leisurely pace observed in the Malpighian tubule. The existence of aging mosaics is extremely important. At the population level, long-lived individuals can be compared to their Aging Characteristics 35 short-lived brethren in the hope of identifying the factors that are responsible for the difference, and at the same time shed some light on the nature of the aging process itself.