This page discusses aging as a process characterized by the gradual decline in physiological functions, heightening mortality risks, especially in non-dividing cells like neurons and muscle cells. It ...This page discusses aging as a process characterized by the gradual decline in physiological functions, heightening mortality risks, especially in non-dividing cells like neurons and muscle cells. It highlights the importance of telomeres, which are protective noncoding DNA sequences at chromosome ends, in maintaining chromosome integrity and preventing fusion.
This page discusses nitric oxide (NO), a reactive gas with vital physiological roles, synthesized by NO synthase (NOS) in cells like neurons and endothelial cells. NO regulates blood flow, kidney func...This page discusses nitric oxide (NO), a reactive gas with vital physiological roles, synthesized by NO synthase (NOS) in cells like neurons and endothelial cells. NO regulates blood flow, kidney function, and gastrointestinal motility, and has effects on inflammation, endocrine secretion, and nervous system function. It plays a role in fertilization, pathogen elimination, and aging, and is used in medical treatments such as erectile dysfunction.
