hayflick in A Sentence

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    Hayflick Leonard How.

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    Hayflick explains that it“ was largely due to reductions in the mortality of newborns.”.

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    In Finch, C. E.; Hayflick, L.( eds.): Handbookofthe Biology of Aging, Van Nostrand Reinhold Co., New York, 1977.

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    Separately, Leonard Hayflick(also working at the Wistar Institute at that time) developed a cell strain using lung cells from an aborted fetus.

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    Leonard Hayflick observes:“ In 1900, 75 percent of the people in the United States died before they reached the age of sixty- five.

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    It was named after Dr. Leonard Hayflick, who in 1965 noticed that cells divide a specific number of times before the division stops.

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    For the majority of isolated primary cells, they undergo the process of senescence and stop dividing after a certain number of population doublings while generally retaining their viability described as the Hayflick limit.

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    Their telomeres associated with successive cycles of cell division, until they reach a critically short length which triggers cell death or an irreversible cell arrest known as replicative senescence(also known as the Hayflick limit).

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    Hayflick' s limit( the maximum number of doublings that a cell population can undergo under in vitro conditions) is only around ten for the cells of these patients as opposed to the normal number of fifty.

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    What Hayflick and his co- workers found was that when they cultured the fibroblasts, a type of cells from human foetal tissue, in the above manner, the cells went through fifty doublings and then stopped, irrespective of how adequate the fresh medium to which they were transferred to.

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    If you took every cell in your body, at the time you were born, and accounted for all the cells they would produce and so on, multiplied that number by the average time it takes for those cells to die, you get what is known as the ultimate Hayflick limit.

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    If you took every cell in your body, at the time you were born, and accounted for all the cells they would produce and multiplied that number by the average time it takes for those cells to die, you get what is known as the ultimate Hayflick limit or the maximum number of years you can theoretically live.

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