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Aging

Aging

The gradual changes in the structure and function of humans and animals that occur with the passage of time, that do not result from disease or other gross accidents, and that eventually lead to the increased probability of death as the person or animal grows older. It does not apply to microorganisms.


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Re: Am I the Next Step in Human Evolution?

Although this thread is very old, this is an interesting question to me that I want to dissect piece by piece. You may just be comparing your aging to men from different regional backgrounds. Many men of european descent do not develop much hair until well into their 20s or even 30s. There are ...

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by badgertoes
Sat Dec 28, 2013 8:31 am
 
Forum: Evolution
Topic: Am I the Next Step in Human Evolution?
Replies: 23
Views: 23701

why is the reproductive system immune to entropy?

... why the fertility of men decreases over time (although most men stay fertile for most of their lives). However, there is a mechanism to prevent 'aging' in certain cells in the body, for example in blood cell progenitors and other stem cells or stem-cell-like cells. Similar mechanism is probably ...

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by biohazard
Wed Jun 12, 2013 9:44 am
 
Forum: General Discussion
Topic: why is the reproductive system immune to entropy?
Replies: 3
Views: 1293

why is the reproductive system immune to entropy?

Or; what is the mechanism of the reproductive system's expemption from cellular 'copy imperfection'/aging - so that all parts of our bodies will replace cells with increasingly imperfect copies except those pertaining to offspring?

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by blacku
Sat Jun 08, 2013 3:12 pm
 
Forum: General Discussion
Topic: why is the reproductive system immune to entropy?
Replies: 3
Views: 1293

Bio Research Paper Writing

... and I are writing a research paper on the topic of "how do chronic viral infections contribute to immune senescence and how do they affect aging as a whole?" We split the essay into parts and we brought it together yesterday: Problem is, the other two group members are saying I wrote ...

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by NathanielZhu
Thu Apr 04, 2013 2:25 am
 
Forum: General Discussion
Topic: Bio Research Paper Writing
Replies: 1
Views: 7999

Apoptosis in the substantia nigra

... present study, we made the hypothesis that programmed cell death may be also involved in the death of nigral dopaminergic neurons occurring during aging. Cell death types were defined by morphological criteria identified at subcellular level. We thus performed an ultrastructural analysis in order ...

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by MarkHolland
Sat Mar 30, 2013 3:03 pm
 
Forum: Cell Biology
Topic: Apoptosis in the substantia nigra
Replies: 1
Views: 1721
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