Aging dams pose growing threat: UN

Cover of the UNU-INWEH report. Credit: UNU-INWEH By 2050, most people on Earth will live downstream of tens of thousands of large dams built in the 20th century, many of them already operating at or beyond their design life, according to a UN University analysis. The report, “Ageing water infrastructure: An emerging global risk,” by […]

Severe menopause symptoms often accompany premature ovarian insufficiency

CLEVELAND, Ohio (Jan. 20, 2021)–Hot flashes, insomnia, and vaginal dryness are commonly reported symptoms that accompany the menopause transition. A new study suggests that such symptoms–especially psychological and sexual problems–are worse for women who have premature ovarian insufficiency (POI) than for women undergoing natural menopause. Study results are published online today in Menopause, the journal […]

Geisinger research identifies genetic risk factor for stroke

DANVILLE, Pa. – A team of Geisinger researchers has identified a common genetic variant as a risk factor for stroke, especially in patients older than 65. Cerebral small vessel disease (SVD) causes about a quarter of ischemic strokes worldwide and is the most common cause of vascular dementia. SVD can manifest as lesions on […]

How dietary choice influences lifespan in fruit flies

IMAGE: A fruit fly feeding on a banana view more  Credit: Sanjay Acharya (CC BY-SA 4.0 – https://creativecommons.org/licenses/by-sa/4.0) Having a choice of foods may accelerate aging and shorten the lifespan of fruit flies, according to a study published today in the open-access eLife journal. While early experiments have shown that calorie restriction can extend lifespan, the current […]

Better diet and glucose uptake in the brain lead to longer life in fruit flies

IMAGE: Glucose uptake in brain neurons decreases with age (left), Increasing glucose uptake in brain neurons counteracts aging (middle), Increasing glucose uptake in brain neurons plus dietary restriction further extends lifespan… view more  Credit: Tokyo Metropolitan University Tokyo, Japan – Researchers from Tokyo Metropolitan University have discovered that fruit flies with genetic modifications to enhance glucose […]

Study finds rising rates of food insecurity among older adults

From 2007 to 2016, food insecurity–or limited access to nutritious foods because of a lack of financial resources–increased significantly from 5.5% to 12.4% among older US adults, and the increase was more pronounced among individuals with lower income. The findings come from a study published in the Journal of the American Geriatric Society. The study, […]

Light flips genetic switch in bacteria inside transparent worms

IMAGE: Light-responsive bacteria fed to worms are visible in images of the worms’ gastrointestinal tracts. Engineers programmed the bacteria to produce a red fluorescent protein called mCherry so they would be… view more  Credit: Image courtesy of Jeff Tabor/Rice University HOUSTON – (Dec. 22, 2020) – Baylor College of Medicine researcher Meng Wang had already shown […]

Discovery of aging mechanism for hematopoietic stem cells

IMAGE: No caption view more  Credit: ©Atsushi IWAMA, The Institute of Medical Science, The University of Tokyo By transferring mouse aged hematopoietic stem cells (aged HSCs, *1) to the environment of young mice (bone marrow niche, *2), it was demonstrated that the pattern of stem cell gene expression was rejuvenated to that of young hematopoietic stem […]