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Polysaccharide-Rich Herbal Formula Attenuates Skin Aging and Oxidative Stress in VCD-Induced Menopause Models via Regulation of AQP-3, C1QBP, and K19

1 week 6 days ago
To investigate the protective effects of Nvshi Oral Liquid on skin aging and oxidative stress in 4-vinylcyclohexene diepoxide (VCD)-induced menopausal rats and Ultraviolet B (UVB)-irradiated HaCaT cells. VCD-induced menopausal rats and UVB-damaged HaCaT cells under low-estrogen conditions were established. Nvshi Oral Liquid was administered at low (2%), medium (6%), and high (10%) concentrations. Cell viability, Reactive Oxygen Species (ROS) levels, antioxidant enzymes (superoxide dismutase...
Yingqi Yu

Tau seeds induce neurofibrillary tangle formation across brain regions via individual-specific connectivity

2 weeks ago
The spread of tau pathology across the cerebral cortex is closely tied to cognitive decline in Alzheimer's disease (AD). To investigate mechanisms underlying tau spread, we measured bioactivity of tau seeds from inferior temporal gyrus (ITG) and superior frontal gyrus (SFG) synaptosomes in 128 individuals and demonstrated that tau seed bioactivity associates with tau phosphorylation, neurofibrillary tangles (NFTs), and cognitive impairment. Incorporating genotype data from the same individuals...
Audrey J Weber

Psychological research on Alzheimer's disease in Pakistan: A systematic review of current trends and research gaps

2 weeks ago
Alzheimer's disease (AD) is an escalating public health concern in low- and middle-income countries like Pakistan, with rising prevalence among the aging population. While global research has increasingly addressed the psychological dimensions of AD, Pakistan's contribution remains limited. This systematic review, conducted in accordance with PRISMA guidelines, examines the scope and focus of psychological research on AD in Pakistan. Eleven empirical studies published between 2014 and 2025 were...
Amna Aurooj

Drug repurposing in Alzheimer's disease: Emerging therapeutic strategies and promising candidates

2 weeks ago
Alzheimer's disease is a progressive neurodegenerative disorder, and the most common cause of dementia, which causes 60-70 % of cases worldwide, and its prevalence is increasing by more than 55 million people globally, with an expected increase of 139 million cases by 2050. AD is characterized by Amyloid-β plaque deposition, tau hyperphosphorylation, synaptic dysfunction, neuroinflammation, and oxidative stress, which makes the pathophysiology multifactorial and complex in terms of the...
Pradip S More

The role and therapeutic potential of DNA glycosylases in Alzheimer's disease

2 weeks ago
The aging brain is highly vulnerable to oxidative genomic damage, the accumulation of which is a hallmark of Alzheimer's disease (AD). The base excision repair (BER) pathway, initiated by DNA glycosylases, serves as the primary guardian against such damage. This review synthesizes recent evidence revealing the dual and dynamic roles of key DNA glycosylases including OGG1, MUTYH, MPG, and members of the NEIL family in AD pathogenesis. Beyond canonical repair functions, these enzymes actively...
Xia Zhao

Quantitative ultrasound radiofrequency analysis for monitoring Parkinson's disease

2 weeks ago
Current clinical assessments of Parkinson's disease rely largely on functional scales, which lack sensitivity to subtle muscle alterations. Therefore, developing objective and quantitative tools to support both diagnosis and disease monitoring is needed. Quantitative ultrasound radiofrequency imaging, particularly through Nakagami analysis, offers a non-invasive means of characterizing tissue scattering properties that may reflect Parkinson's disease - related effects. This study aimed to assess...
Baptiste Bizet