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Article Publish Status: FREE
Abstract Title:

Nutraceutical intervention reverses the negative effects of blood from aged rats on stem cells.

Abstract Source:

Age (Dordr). 2015 Oct ;37(5):103. Epub 2015 Sep 26. PMID: 26410618

Abstract Author(s):

Paula C Bickford, Yuji Kaneko, Bethany Grimmig, Colleen Pappas, Brent Small, Cyndy D Sanberg, Paul R Sanberg, Jun Tan, R Douglas Shytle

Article Affiliation:

Paula C Bickford

Abstract:

Aging is associated with a decline in function in many of the stem cell niches of the body. An emerging body of literature suggests that one of the reasons for this decline in function is due to cell non-autonomous influences on the niche from the body. For example, studies using the technique of parabiosis have demonstrated a negative influence of blood from aged mice on muscle satellite cells and neurogenesis in young mice. We examined if we could reverse this effect of aged serum on stem cell proliferation by treating aged rats with NT-020, a dietary supplement containing blueberry, green tea, vitamin D3, and carnosine that has been shown to increase neurogenesis in aged rats. Young and aged rats were administered either control NIH-31 diet or one supplemented with NT-020 for 28 days, and serum was collected upon euthanasia. The serum was used in cultures of both rat hippocampal neural progenitor cells (NPCs) and rat bone marrow-derived mesenchymal stem cells (MSCs). Serum from aged rats significantly reduced cell proliferation as measured by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and 5-bromo-2'-deoxyuridine (BrdU) assays in both NPCs and MSCs. Serum from aged rats treated with NT-020 was not different from serum from young rats. Therefore, NT-020 rescued the effect of serum from aged rats to reduce stem cell proliferation.

Study Type : Animal Study

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