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Systemic problems: a perspective on stem cell aging and rejuvenation.

Conboy, Irina M., Conboy, Michael J., Rebo, Justin·2015·Aging

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Crossref · 10.18632/aging.100819

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  • The general conclusion of heterochronic parabiosis studies was that old partners had better health and/or repair of cartilage, muscle, liver, brain, spinal cord, kidneys, bone, skin, etc.

    “The general conclusion of these studies was that the old partners had better health and/or repair of cartilage, muscle, liver, brain, spinal cord, kidneys, bone, skin, etc.”

    From Rejuvenation of three germ layers tissues by exchanging old blood plasma with saline-albumin (2020) · cites this paper as [7]

    The Prologue reports better cartilage health in old rats paired with young rats and rejuvenation of stem cells in muscle, brain/hippocampus, and liver. The paper does not report improved repair of spinal cord, kidneys, bone, or skin in old partners; mentioning young kidneys as a possible benefit to the pair is not evidence of kidney repair. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Neurogenesis in the subgranular zone of the hippocampus continues throughout adult life, dramatically declines with advanced age and is influenced by blood heterochronicity.

    “Neurogenesis in the subgranular zone (SGZ) of the hippocampus continues throughout adult life, dramatically declines with advanced age and is influenced by blood heterochronicity [7, 9, 14, 26].”

    From Rejuvenation of three germ layers tissues by exchanging old blood plasma with saline-albumin (2020) · cites this paper as [7]

    The Prologue’s Figure 1 caption reports a marked reduction in hippocampal neurogenesis in old mice and shows that heterochronic pairing changes neural stem-cell proliferation. It examines the dentate gyrus, but does not specifically identify the subgranular zone or establish that neurogenesis continues throughout adult life. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Attenuation of TGF-beta signaling in old animals has effects similar to those of NBE.

    “and the fact that attenuation of TGF-beta signaling in old animals has effects that are similar to those of NBE [7, 14, 15, 28, 44].”

    From Rejuvenation of three germ layers tissues by exchanging old blood plasma with saline-albumin (2020) · cites this paper as [7]

    The Concluding remarks (page not provided) report that a TGF-beta receptor inhibitor rejuvenated muscle formation and hippocampal neurogenesis and reduced an inflammation marker in an old animal. The paper does not compare those effects with NBE; its discussion of blood-based rejuvenation concerns heterochronic parabiosis and young plasma, so the claimed similarity to NBE is not established by this source. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • In heterochronic parabiosis studies, young animals often experienced premature aging of their respective tissues.

    “and often the young animals experienced premature aging of their respective tissues [1, 3, 4, 6–8].”
  • Old human serum strongly reduced myogenic cell proliferation.

    “As demonstrated in Figure 2, old human serum strongly reduced myogenic cell proliferation (which is consistent with the effects of the old mouse serum [1, 2, 6, 7, 13]).”

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Citations

Cites

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Research works printed but not linked: 82

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Metadata

Authors
Conboy, I. M., Conboy, M. J., & Rebo, J.
Affiliations
Department of Bioengineering, UC Berkeley; QB3, CA 94709, USA
Venue
Aging
Published
2015-10-25
Volume
7
Issue
10
Pages
754-765
ISSN
1945-4589
Cited by
58
References
25
Language
en

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