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Radiological markers of CSF α-synuclein aggregation in Parkinson's disease patients.
NPJ Parkinsons Dis
January 2025
Movement Disorders Unit, Neurological Institute, Tel Aviv Medical Center, Tel Aviv, Israel.
Alpha-synuclein (αS) aggregation is a widely regarded hallmark of Parkinson's disease (PD) and can be detected through synuclein amplification assays (SAA). This study investigated the association between cerebrospinal fluid (CSF) radiological measures in 41 PD patients (14 iPD, 14 GBA1-PD, 13 LRRK2-PD) and 14 age-and-sex-matched healthy controls. Quantitative measures including striatal binding ratios (SBR), whole-brain and deep gray matter volumes, neuromelanin-MRI (NM-MRI), functional connectivity (FC), and white matter (WM) diffusion-tensor imaging (DTI) were calculated.
View Article and Find Full Text PDFGlobal, regional, and national prevalence and trends of infertility among individuals of reproductive age (15-49 years) from 1990 to 2021, with projections to 2040.
Hum Reprod
January 2025
Clinical Experimental Center, Jiangmen Engineering Technology Research Center of Clinical Biobank and Translational Research, Jiangmen Central Hospital, Jiangmen, China.
Study Question: What is the prevalence and trend of infertility among individuals of childbearing age at global, regional, and national levels by sex and socio-demographic index (SDI) across 21 regions and 204 countries and territories?
Summary Answer: Our findings reveal a growing prevalence of infertility among individuals aged 15-49 years worldwide from 1990 to 2021, with an expected continued increase through 2040.
What Is Known Already: Infertility is a persistent global reproductive health issue, leading to significant societal and health consequences. No study has specifically described the current prevalence of infertility, its secular trend, or the variations between regions or countries with different SDI levels.
Basic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Malaga/CIBERNED/IBIMA, Málaga, Spain.
Background: Alzheimer's Disease (AD) is a neurodegenerative proteinopathy in which Aβ can misfold and aggregate into seeds that structurally corrupt native proteins, mimicking a prion-like process. These amyloid aggregation and propagation processes are influenced by three factors: the origin of the Aβ seed, time of incubation and host. However, the mechanism underlying the differential effect of each factor is poorly known.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Malaga/CIBERNED/IBIMA, Málaga, Spain.
Background: Alzheimer's disease (AD) is a complex disorder and multiple cellular and molecular mechanisms are involved in AD onset and progression. Recent evidences have suggested that metabolic alterations are an important pathological feature in disease progression in AD. Likewise, diabetes and obesity, two mayor metabolic illnesses, are risk factors for AD.
View Article and Find Full Text PDFAnalysis of Changes in Home- and Community-Based Service Utilisation Among Chinese Older Adults: A National Cohort Study.
J Adv Nurs
January 2025
Department of Health Services and Management, School of Medical Humanities and Management, Wenzhou Medical University, Wenzhou, China.
Aim: To explore changes in home- and community-based service utilisation and its associated factors among Chinese older adults between 2016 and 2018.
Design: A national cohort study.
Methods: This study included 6924 older adults from the China Longitudinal Aging Social Survey 2016 and 2018 waves, examining the changes in service utilisation among four groups: continuous users, former users, new users and nonusers.
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