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- Stem_cell_theory_of_aging abstract "The stem cell theory of aging is a new theory which was recently formulated by several scientists and which postulates that the aging process is the result of the inability of various types of stem cells to continue to replenish the tissues of an organism with functional differentiated cells capable of maintaining that tissue (or organ) original function. Damage and error accumulation in genetic material is always a problem for systems regardless of the age. The number of stem cells in young people is very much higher than older people and this cause a better and more efficient replacement mechanism in the young contrary to the old. In other words aging is not a matter of the increase of damage, but a matter of failure to replace it due to decreased number of stem cells. They decrease in number and tend to loose the ability to differentiate into progenies or lymphoid lineages and myeloid lineages.Maintaining the dynamic balance of stem cell pools requires several conditions. Balancing proliferation and quiescence along with homing (See niche) and self-renewal of hematopoietic stem cells are favoring elements of stem cell pool maintenance while differentiation, mobilization and senescence are detrimental elements. These detrimental effects will eventually cause apoptosis.There are also several challenges when it comes to therapeutic use of stem cells and their ability to replenish organs and tissues. First, different cells may have different life spans even though they are originated from the same stem cells. (See T-cells and erythrocytes) meaning that aging can occur differently in cells that have longer lifespans as oppose to the ones with shorterlifespans.Also, continual effort to replace the somatic cells may cause exhaustion of stem cells.".
- Stem_cell_theory_of_aging wikiPageExternalLink BrianOutline.html.
- Stem_cell_theory_of_aging wikiPageExternalLink www.eurostemcell.org.
- Stem_cell_theory_of_aging wikiPageExternalLink Page_2.htm.
- Stem_cell_theory_of_aging wikiPageID "25279860".
- Stem_cell_theory_of_aging wikiPageRevisionID "602096909".
- Stem_cell_theory_of_aging hasPhotoCollection Stem_cell_theory_of_aging.
- Stem_cell_theory_of_aging subject Category:Proximate_theories_of_biological_aging.
- Stem_cell_theory_of_aging subject Category:Stem_cells.
- Stem_cell_theory_of_aging subject Category:Theories_of_aging.
- Stem_cell_theory_of_aging subject Category:Theories_of_biological_aging.
- Stem_cell_theory_of_aging type Cell100006484.
- Stem_cell_theory_of_aging type LivingThing100004258.
- Stem_cell_theory_of_aging type Object100002684.
- Stem_cell_theory_of_aging type PhysicalEntity100001930.
- Stem_cell_theory_of_aging type SomaticCell105430628.
- Stem_cell_theory_of_aging type StemCell105607863.
- Stem_cell_theory_of_aging type StemCells.
- Stem_cell_theory_of_aging type Whole100003553.
- Stem_cell_theory_of_aging comment "The stem cell theory of aging is a new theory which was recently formulated by several scientists and which postulates that the aging process is the result of the inability of various types of stem cells to continue to replenish the tissues of an organism with functional differentiated cells capable of maintaining that tissue (or organ) original function. Damage and error accumulation in genetic material is always a problem for systems regardless of the age.".
- Stem_cell_theory_of_aging label "Stem cell theory of aging".
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- Stem_cell_theory_of_aging sameAs Q7607301.
- Stem_cell_theory_of_aging sameAs Q7607301.
- Stem_cell_theory_of_aging sameAs Stem_cell_theory_of_aging.
- Stem_cell_theory_of_aging wasDerivedFrom Stem_cell_theory_of_aging?oldid=602096909.
- Stem_cell_theory_of_aging isPrimaryTopicOf Stem_cell_theory_of_aging.