منابع مشابه
Is lifespan determined in utero?
search will most likely reveal numerous curious and provocative associations between health experiences in early childhood and the occurrence of later disease. Reduced exposure to infection in childhood has been implicated as a factor in the pathogenesis of insulin dependent diabetes (IDDM). Caspar Gibbon et al put this theory to the test in a brief but important paper on pages 384–5, which poi...
متن کاملLifespan of neurons is uncoupled from organismal lifespan.
Neurons in mammals do not undergo replicative aging, and, in absence of pathologic conditions, their lifespan is limited only by the maximum lifespan of the organism. Whether neuronal lifespan is determined by the strain-specific lifetime or can be extended beyond this limit is unknown. Here, we transplanted embryonic mouse cerebellar precursors into the developing brain of the longer-living Wi...
متن کاملIs Homosexuality Biologically Determined?
An article in The Philadelphia Inquirer 1 about the book Being Homosexual,2 by Richard A. Isay, a New York psychiatrist and psychoanalyst, led to my reading this short volume. It is a remarkable review of the subject by a physician specializing in treating homosexual men and should be read by anyone with an interest in the subject. Severrd years ago, a geneticist colleague expressed the beiief ...
متن کاملTelomerase Is Required for Zebrafish Lifespan
Telomerase activity is restricted in humans. Consequentially, telomeres shorten in most cells throughout our lives. Telomere dysfunction in vertebrates has been primarily studied in inbred mice strains with very long telomeres that fail to deplete telomeric repeats during their lifetime. It is, therefore, unclear how telomere shortening regulates tissue homeostasis in vertebrates with naturally...
متن کاملCorrection: Telomerase Is Required for Zebrafish Lifespan
[This corrects the article DOI: 10.1371/journal.pgen.1003214.].
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ژورنال
عنوان ژورنال: Archives of Disease in Childhood - Fetal and Neonatal Edition
سال: 1997
ISSN: 1359-2998,1468-2052
DOI: 10.1136/fn.77.3.f162