Alterung

A large study of nearly 2 million older adults has found that cerebral amyloid angiopathy, a condition where amyloid proteins build up in brain blood vessels, sharply increases the risk of dementia. Within five years of diagnosis, people with this disorder were four times more likely to develop dementia than those without it, even absent a history of stroke. The findings, drawn from Medicare records, underscore the need for early cognitive screening in affected individuals.

1. Februar 2026 Von KI berichtet

In Hiroshima Prefecture, 81-year-old farmer Takeyuki Satokawa and his wife Masako, 77, ceased rice farming on their family paddies in 2024 due to advancing age and escalating costs. This past autumn marked their first time purchasing rice from another grower. A member of an agricultural cooperative noted that while training successors is crucial, many farmers have been too preoccupied with mere survival to do so.

A new study finds that people over 80 who maintain sharp mental abilities, known as super agers, carry fewer copies of the main Alzheimer's risk gene and more of a protective variant. This genetic profile sets them apart even from other healthy seniors in the same age group. The research, led by Vanderbilt University Medical Center, highlights potential resilience factors against dementia.

21. Januar 2026 Von KI berichtet Fakten geprüft

Stanford Medicine researchers report that blocking the enzyme 15-PGDH reversed age-related cartilage loss in older mice and reduced osteoarthritis-like damage after ACL-like knee injuries. In lab experiments, cartilage taken from knee replacement surgeries also showed early signs of regeneration after exposure to the inhibitor, findings published in *Science*.

Eine internationale Meta-Analyse mit fast 24.000 Älteren zeigt, dass emotionaler Support depressive Symptome im Alter stärker mindert als praktische Alltags-Hilfe. Die in der American Journal of Epidemiology veröffentlichte Studie analysierte Daten aus 11 Untersuchungen verschiedener Länder, einschließlich Brasilien. Experten betonen die Bedeutung affektiver Bindungen für die mentale Gesundheit Älterer.

10. Januar 2026 Von KI berichtet

Je älter die Bevölkerung wird, desto mehr Menschen sind von Gedächtniserkrankungen wie Alzheimer betroffen. Die Forschung auf diesem Gebiet schreitet jedoch langsam voran, und nur etwa die Hälfte der Betroffenen erhält die verfügbare Behandlung.