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Sex-specific effects of cereal-based diets on longevity and healthspan in Drosophila melanogaster

3 months 1 week ago
Cereal grains contain bioactive compounds that may influence longevity. We investigated the effects of 20 cereal varieties on longevity and healthspan in Drosophila melanogaster, including triticale, bread wheat, durum wheats, ancient wheats, and regional varieties. Cereal-based diets exhibited sex-specific differences relative to cereal-free controls: females showed 3-13% longer lifespans while males exhibited reduced lifespans by up to 19%. In females, clear patterns were observed: pronounced...
Daria V Mikhailova

Decreased fatty acid transporter FATP4 is a potential contributor to impaired fat utilization in aging mice

3 months 1 week ago
Fat plays a key role in maintaining energy balance and supporting various physiological processes. HuAge-related disorders in fat utilization are increasingly prevalent, contributing to impaired energy balance, heightened metabolic disease risk, and increased cardiovascular dysfunction. The mechanism of age-induced disorders of fat utilization remains unclear. This study aims to explore the key factor affecting fat digestion and absorption during aging. Mice of different ages were used to...
Qianqian Huang

Muscle-specific transcriptomic and metabolomic signatures reveal heterogeneous aging trajectories and altered intercellular communication in male murine skeletal muscle

3 months 1 week ago
Skeletal muscle aging is characterized by progressive functional decline and molecular remodeling, yet how different muscle types respond to aging remains incompletely understood. Here, we performed integrated transcriptomic and metabolomic profiling of three functionally distinct muscles-gastrocnemius (GA), soleus (SOL), and tibialis anterior (TA)-from young (3-month) and aged (24-month) C57BL/6J male mice. Our multi-omics approach revealed both shared and muscle-specific molecular signatures...
Caifen Guo

PRKN activation for mitophagy requires an NME3-regulated phosphatidic acid signal that separates mitochondria from endoplasmic reticulum tethering

3 months 1 week ago
PINK1-dependent activation of PRKN/parkin on depolarized mitochondria causes mitophagy. The deficiency of NME3, a nucleoside diphosphate kinase/NDPK on the outer mitochondria membrane (OMM), is associated with a fatal neurodegenerative disorder. Here, we report that NME3 deficiency impairs p-S65-ubiquitin (Ub)-dependent PRKN binding on depolarized mitochondria without involving the loss of Ub phosphorylation by PINK1. Our mechanistic investigation revealed that NME3 interacts with PLD6/MitoPLD...
Chih-Wei Chen

Lifespan and Fecundity Impacts of Reduced Insulin Signalling Can Be Directed by Mito-Nuclear Epistasis in Drosophila

3 months 1 week ago
The changing demography of human populations has motivated a search for interventions that promote healthy ageing, and especially for evolutionarily-conserved mechanisms that can be studied in lab systems to generate hypotheses about function in humans. Reduced Insulin/IGF signalling (IIS) is a leading example, which can extend healthy lifespan in a range of animals, but whether benefits and costs of reduced IIS vary genetically within species is under-studied. This information is critical for...
Rita Ibrahim

Mechanisms to medicines: navigating drug repurposing strategies in Alzheimer's disease

3 months 1 week ago
Alzheimer's disease (AD) represents a continuously advancing neurodegenerative condition distinguished by the unremitting deterioration of cognitive abilities and memory impairment, which significantly hampers daily functioning of life. In the absence of disease modifying treatments, it continues to pose a significant global challenge. Though symptomatic treatment exists, the inherent complexity involved with AD pathogenesis related to Aβ plaques, neurofibrillary tangles, neuroinflammation,...
Sara Akhtar Khan

Gapless pangenome analyses reveal fast Brassica rapa subspeciation

3 months 1 week ago
Science, Volume 391, Issue 6785, February 2026.
Wei Ma, Yuanming Liu, Xiaochun Wei, Xiaomeng Zhang, Xiaonan Li, Zhaokun Liu, Lingyun Yuan, Guangguang Li, Shu Zhang, Qihang Yang, Xiaocong Chang, Zizhuo Han, Hao Liang, Zhaoshui Luan, Qianyun Wang, Yujie Gu, Xinlong Wang, Xianlei Zhao, Qing Liu, Xiaoxue…

Why methane surged in the atmosphere during the early 2020s

3 months 1 week ago
Science, Volume 391, Issue 6785, February 2026.
P. Ciais, Y. Zhu, Y. Cai, X. Lan, S. E. Michel, B. Zheng, Y. Zhao, D. A. Hauglustaine, X. Lin, Y. Zhang, S. Sun, X. Tian, M. Zhao, Y. Wang, J. Chang, X. Dou, Z. Liu, R. Andrew, C. A. Quinn, B. Poulter, Z. Ouyang, W. Yuan, K. Yuan, Q. Zhu, F. Li, N. Pan,…

DNA origami vaccines program antigen-focused germinal centers

3 months 1 week ago
Science, Volume 391, Issue 6785, February 2026.
Anna Romanov, Grant A. Knappe, Larance Ronsard, Christopher A. Cottrell, Yiming J. Zhang, Heikyung Suh, Lauren Duhamel, Marjan Omer, Asheley P. Chapman, Katie Spivakovsky, Patrick Skog, Claudia T. Flynn, Jeong Hyun Lee, Oleksandr Kalyuzhniy, Alessia…