WebSep 4, 2024 · The 'damage' or 'error' theories emphasize intrinsic and environmental insults to our cellular components that accumulate throughout life and gradually cause alterations in biological function and the physiological decline associated with aging. Somatic mutation and DNA repair Damage to DNA occurs throughout the lifetime of a cell. WebNov 6, 2016 · Oxidative Stress Theory (Free Radical Theory) The free radical or oxidative stress theory of aging has garnered strong support as correlative evidence has accumulated over the last 35 years (Jang and …
Chapter 28: Physical Development in Late Adulthood
WebOct 8, 2024 · The biological theory of aging combines two main approaches toward aging in the human body: programmed and damage (error) theories. Programmed theories are … Webof DNA damage, shorter telomeres, and other factors that contribute to a greater quantity of senescent cells. Older stem cells replicate less frequently compared to younger stem cells. This is likely due to the accumulation of damaged DNA and increased deficiencies in DNA damage repair which become more prevalent with aging (23). cook compression houston tx 77047
Explain the difference between programmed theories and damaged/error ...
WebApr 12, 2013 · The free-radical theory of aging states that aging is due to damage on the cells caused by free radicals, which are byproducts of oxidation. A free radical is an atom or molecule that has a single unpaired electron in its outer shell. Most free radicals are highly reactive and are well-documented to cause large amounts of oxidative stress on ... WebNov 1, 2015 · The cross-linking theory of aging. This theory posits that aging results from glucose binding to proteins, which impairs their biological functions. Protein cross-linking is associated with the connective tissue hardening, cardiac enlargement, and renal disorders. Sugars bound to DNA can cause replication errors leading to malformed cells and ... WebThe second category includes Damage or Error Theories which emphasize environmental factors that cause cumulative damage in organisms. Examples from each of these categories will be discussed. Figure 9.9 … cook compressor packing