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Enhanced focality and intensity in deep brain targeting: In silico study on multi-channel temporal interference stimulation for Parkinson's disease

4 weeks 1 day ago
This study introduces a novel multi-channel temporal interference stimulation (M-TIS) paradigm and rigorously evaluates its capacity to non-invasively target the globus pallidus internus (GPi), a pivotal region in Parkinson's disease (PD) treatment. Employing realistic human head models derived from MRI data and sophisticated finite element modeling, we demonstrate that M-TIS achieves significantly enhanced stimulation intensity and focality within the GPi compared to conventional single-channel...
Bangyu Wang

Smoking Promotes AT2 Cell Senescence and Exacerbates Pulmonary Fibrosis by Downregulating POT1 via Integratively Inducing CpG Methylation and MECP2-Mediated FOXP2 Transcriptional Binding Inhibition

4 weeks 1 day ago
Smoking is one of the most recognized risk factors for pulmonary fibrosis (PF). However, the underlying mechanism is not well understood. This study reveals smoking increases the risk of developing idiopathic PF (IPF) and that smoked IPF patients exhibit higher levels of senescence markers than non-smoker IPF patients. Moreover, smoking enhances bleomycin (Bleo)-induced PF, along with obvious senescence of type II alveolar (AT2) cells. RNA-seq assay identifies cigarette downregulates protection...
Mengkun Shi

Amyloid and tau pathologies cross-talk to promote Alzheimeŕs disease: novel mechanistic insights

4 weeks 2 days ago
Aging-related declines in energy metabolism represent a key risk factor for the development of amyloid pathology, the earliest hallmark of Alzheimer's disease. Aging also contributes to the emergence of the second major hallmark, tau pathology, whose propagation is facilitated by pre-existing amyloid accumulation. The overlap of amyloid and tau pathologies ultimately leads to neurodegeneration and the onset of Alzheimer's disease-the most prevalent form of dementia. Recent findings underscore a...
Jesús Avila

Patterns of social participation among older adults and their association with self-rated health: the mediating role of activities of daily living

4 weeks 2 days ago
CONCLUSION: Activities of Daily Living mediates the relationship between social participation and Self-rated Health. Attention should be paid to the Activities of Daily Living of older adults, with particular attention to those living alone and those who are chronically ill, and to social resources to enhance the social participation of older persons.
Jiaxian Zhou

Aging influences protein digestion, absorption and amino acid metabolism

4 weeks 2 days ago
Proteins are essential biomolecules that play indispensable roles in maintaining cellular homeostasis and regulating systemic metabolic processes. Protein deficiency is closely associated with age-related chronic diseases. Our purpose is to reveal the reason of protein deficiency in the elderly and potential treatments. A systematic literature search mainly on human studies addressing gastrointestinal aging and amino acid homeostasis was conducted. This review investigated the effects of aging...
Lili Qiu

Divergent sex-specific effects on a ketogenic diet: Male, but not female, mice exhibit oxidative stress and cellular senescence

4 weeks 2 days ago
While a ketogenic diet (KD) can improve certain health parameters, evidence from murine and clinical studies suggests that these effects may be dependent on multiple variables. One understudied variable is the role of sex in the response to a KD. Here, we show that a KD-induced increase in p53, p21, and cellular senescence is only observed in male mice, except when they are given estrogen, and in female mice administered tamoxifen. Male, but not female, mice on a KD exhibit an increase in...
Sung-Jen Wei

High-throughput measurement of Drosophila feeding behavior

4 weeks 2 days ago
Accurate measurement of Drosophila feeding is vital for metabolic and aging studies, but current assays lack the throughput and sensitivity needed for large-scale screens. We introduce FlyPlate-BCA, a 96-well platform that combines automated single-fly tracking with BCA protein quantification for high-resolution, longitudinal intake measurements. FlyPlate-BCA detects a 0.1× nutrient dilution with 90% power using just four replicates, three times fewer than the capillary feeder (CAFE) assay. It...
Huai-Zheng Zheng