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Safety issues with the only available vaccine complicates response to chikungunya

Department selected universal flu vaccine work by NIH leaders without “transparency,” some scientists say

Sediments deposited long ago reveal the vessel’s age

Ancient amino acids suggest German weapons are some 100,000 years younger than once thought

By moving their arms, these smart cephalopods seem to send signals via visual cues and pressure waves

4000-year-old scarred jaws in Oman hub mark oldest cases outside South Asia

Developmental time (or time to maturity) strongly correlates with an animal's maximum lifespan, with late-maturing individuals often living longer. However, the genetic mechanisms underlying this phenomenon remain largely unknown. This may be because most previously identified longevity genes regulate growth rate rather than developmental time. To address this gap, we genetically manipulated prothoracicotropic hormone (PTTH), the primary regulator of developmental timing in Drosophila, to...

CONCLUSIONS: Higher oxidative balance scores are associated with a lower prevalence of sarcopenia, particularly among women. These findings support the importance of antioxidant-rich diets and healthy lifestyles in mitigating sarcopenia risk, especially in aging female populations.

INTRODUCTION: In patients with Normal Pressure Hydrocephalus (NPH), the aging process results in decreased efficiency of cerebrospinal fluid circulation, leading to ventricular enlargement. This enlargement compresses several brain structures, impairing functions such as visual perception, semantic memory processing, and phonological encoding contributing to language processing difficulties. This study examines real-time language processing in NPH patients and healthy elderly (HE) controls by...

INTRODUCTION: Neurodegenerative disorders, such as Alzheimer's disease, arise from neuroinflammation, which leads to cognitive and memory impairment. Scopolamine is commonly used to induce cognitive and memory deficits in mouse models.

Resistance exercise (RE) enhances functionality in older adults and has proven effective as a means of cross-education in scenarios of unilateral disuse. However, the extent to which older adults demonstrate cross-limb transfer at the motor unit (MU) level following a single bout of unilateral RE is unclear. Thirteen healthy older adults (74.9 ± 4.8 years; 5 females) underwent bilateral neuromuscular assessments pre- and post- a single bout of unilateral RE consisting of sets of 12 repetitions...

Science, Volume 388, Issue 6747, May 2025.

Science, Volume 388, Issue 6747, May 2025.

Science, Volume 388, Issue 6747, May 2025.

Science, Volume 388, Issue 6747, May 2025.

Science, Volume 388, Issue 6747, May 2025.

Science, Volume 388, Issue 6747, May 2025.