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Age-associated neuronal micronuclei formation and transfer to microglia

8 hours 3 minutes ago
Microglia, the resident immune cells of the central nervous system, dynamically respond to signals from their microenvironment, including adjacent neurons. Among these signals, nuclear contents released from damaged neurons have been implicated in triggering inflammatory microglial responses. Recently, we found that micronuclei (MNs) derived from neurons during the early postnatal stage act as intercellular mediators that alter the microglial characteristics. However, it remains unclear whether...
Chihiro Maeda

Millions may be getting the wrong cholesterol test

9 hours ago
A new study suggests that apoB, a blood test that measures harmful cholesterol particles, is better than standard LDL cholesterol testing for deciding who needs more intensive treatment. Researchers found it could prevent more heart attacks and strokes while remaining cost-effective for the U.S. healthcare system.

Scientists find the “Achilles’ heel” of deadly gut bacteria

15 hours 47 minutes ago
Researchers discovered an “Achilles’ heel” shared by E. coli, Shigella, and other diarrhea-causing bacteria: enzymes they use to breach the gut’s protective mucus layer. By targeting this common vulnerability, scientists may be able to develop a single vaccine that prevents several major diarrheal infections before they even begin.

The Brain Renin-Angiotensin System in Parkinson's Disease: Friend or Foe? Mechanistic Insights and Therapeutic Implications

1 day 8 hours ago
The renin-angiotensin system (RAS), classically known for its role in cardiovascular and fluid homeostasis, also regulates neuronal homeostasis in the central nervous system (CNS), where its dysregulation contributes to PD pathogenesis. The emerging evidence links excessive activation of the brain RAS in PD, where sustained activation of the angiotensin II (Ang II)/angiotensin type-1 receptor (AT1R) axis promotes oxidative stress, neuroinflammation, mitochondrial dysfunction, and blood-brain...
Gursimran Singh

Preclinical Evidence for Icariin in Alzheimer's Disease: Methodological Quality, Efficacy, and Mechanisms

1 day 8 hours ago
Alzheimer's disease (AD) currently lacks effective curative treatments. Icariin (ICA), a flavonoid from Epimedium, has been widely investigated in AD animal models with emerging neuroprotective potential. However, the methodological quality, reporting rigor, and translational reliability of this preclinical evidence have not yet been systematically evaluated. Studies investigating ICA in AD were retrieved from eight databases up to May 12, 2026. The reporting quality, risk of bias, and study...
Min-Li Chen

White matter abnormalities in Alzheimer's disease: Implications for pathophysiology, diagnosis, and treatment

1 day 8 hours ago
White matter (WM) abnormalities have emerged as a critical element in Alzheimer's disease (AD) pathogenesis, shifting from their former status as a passive consequence to an active contributor to disease progression. Notably, microstructural WM alterations, detectable early via advanced neuroimaging techniques such as diffusion tensor imaging, frequently precede overt gray matter atrophy and cognitive decline, highlighting their potential as early contributors to AD pathogenesis. The origins of...
Zhichun Chen

White matter abnormalities in Alzheimer's disease: Implications for pathophysiology, diagnosis, and treatment

1 day 8 hours ago
White matter (WM) abnormalities have emerged as a critical element in Alzheimer's disease (AD) pathogenesis, shifting from their former status as a passive consequence to an active contributor to disease progression. Notably, microstructural WM alterations, detectable early via advanced neuroimaging techniques such as diffusion tensor imaging, frequently precede overt gray matter atrophy and cognitive decline, highlighting their potential as early contributors to AD pathogenesis. The origins of...
Zhichun Chen

Sub1 contributes to heart failure with preserved ejection fraction driven by aging in mice

1 day 8 hours ago
Heart failure with preserved ejection fraction (HFpEF) accounts for approximately half of all heart failure cases and predominantly affects older individuals, yet effective treatments remain limited. The molecular mechanisms linking cardiac aging to HFpEF are not fully understood. Here we show that the transcriptional regulator Sub1 is upregulated in aged hearts and in mouse models of HFpEF. Cardiac overexpression of Sub1 shortens lifespan, exacerbates diastolic dysfunction, and accelerates...
Di Zhao

Metabolic Kinases as Regulators of Inter-Organelle Communication in Aging and Age-Related Diseases

1 day 8 hours ago
Cellular aging is accompanied by progressive alterations in metabolic homeostasis, stress adaptation, and organelle function. Increasing evidence suggests that functional coordination among membrane-bound organelles, including mitochondria, the endoplasmic reticulum (ER), lysosomes, peroxisomes, and the Golgi apparatus, contributes to cellular homeostasis during aging. However, the mechanisms linking kinase signaling to specific inter-organelle contact sites or communication pathways remain...
Md Riad Chowdhury

Scientists discover the deep sleep circuit that builds muscle, burns fat, and boosts the brain

1 day 10 hours ago
Researchers have identified the brain circuitry that links deep sleep with the release of growth hormone, revealing how the two regulate each other. The newly discovered feedback loop helps explain why poor sleep can interfere with growth, muscle repair, fat metabolism, and brain function. Understanding this system could pave the way for new therapies for sleep disorders and diseases tied to metabolism and the brain, including Alzheimer's and Parkinson's.

The secret to healthy aging may be hidden in your blood

1 day 17 hours ago
Some people live past 100 with remarkable health, and researchers may have uncovered one reason why. A new study found that centenarians have a unique chemical "fingerprint" in their blood that sets them apart from normal aging, including unusual patterns of bile acids and steroids linked to longer survival.

A hidden weakness in deadly cancers could lead to powerful new treatments

1 day 22 hours ago
A UCLA study has identified a hidden Achilles' heel in aggressive small cell cancers that have resisted new treatments for decades. Scientists found that tumors lacking the RB gene become critically dependent on the protein E2F3 for survival. Blocking E2F3 shut down tumor growth in laboratory models, and existing FDA-approved drugs may be able to exploit this vulnerability. The discovery could pave the way for faster development of more effective therapies.

Multiscale artificial spider web for comprehensive pressure sensing and human-machine interaction

2 days 8 hours ago
Flexible pressure sensors are key components of Internet of Things systems for monitoring environmental and physiological signals, yet simultaneously achieving a high sensitivity, a fast response time, and a high mechanical durability remains challenging owing to the lack of sophisticated structural designs that balance sensing performance and robustness. Here, we demonstrate a multiscale artificial spider web (MASW) fabricated via copper-mesh-assisted electrospinning of biodegradable polylactic...
Jing Dai