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FGF21 promotes longevity in diet-induced obesity through metabolic benefits independent of growth suppression

4 months 2 weeks ago
Approximately 35% of US adults over 65 are obese, highlighting the need for therapies targeting age-related metabolic issues. Fibroblast growth factor 21 (FGF21), a hormone mainly produced by the liver, improves metabolism and extends lifespan. To explore its effects without developmental confounders, we generated mice with adipocyte-specific FGF21 overexpression beginning in adulthood. When fed a high-fat diet, these mice lived up to 3.3 years, resisted weight gain, improved insulin...
Christy M Gliniak

Ovarian aging at single-cell resolution: Current paradigms and perspectives

4 months 2 weeks ago
Ovarian failure is a key event in female reproductive aging, resulting in the depletion of follicular reserve and a decline in fertility. In addition, it triggers systemic pathological changes, including osteoporosis and cardiovascular disease, due to decreased estrogen levels. Despite extensive study, mapping senescent ovarian cells is challenging due to the multicellular composition and heterogeneity of the ovary. In the past decade, single-cell resolution technologies have provided new...
Junzhi Liang