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Two fluorescence resonance energy transfer (FRET)-based biosensor cell lines developed several years ago by the Diamond group (University of Texas, Southwestern) have allowed convenient, sensitive, and specific measurement of the intracellular aggregation of tau and α-synuclein following the addition of oligomer or small-aggregate "seeds" of these proteins from various sources, and an advancement relative to similar single-fluorophore systems. These biosensor cell lines allow researchers to both visualize the intracellular aggregates of tau or α-synuclein and measure intracellular aggregation with high sensitivity using a FRET signal in flow cytometry. Here we provide detailed protocols for generating seeds, culturing the biosensor cells, measuring intracellular aggregates by flow cytometry, and analyzing the results and discuss the utility of the technique with the aim of characterizing factors involved in the regulation of intracellular tau and α-synuclein aggregation.
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http://dx.doi.org/10.1007/978-1-0716-2597-2_10 | DOI Listing |
BMC Pediatr
September 2025
Department of Neonatology, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian, China.
Background: Red blood cell (RBC) transfusion is a common intervention for anemia in preterm infants; however, its association with bronchopulmonary dysplasia (BPD) remains debated. While biological mechanisms suggest potential harm, the clinical impact of transfusion frequency on BPD incidence and severity remains unclear.
Objective: To investigate whether RBC transfusion frequency is independently associated with the risk and severity of BPD in preterm infants born before 32 weeks of gestation.
JMIR Res Protoc
September 2025
Department of Psychiatry, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea.
Background: Autism spectrum disorder (ASD) and social communication disorder (SCD) are neurodevelopmental disorders characterized by deficits in social communication that hinder social adaptation, with limited pharmacological options for therapy owing to the absence of identified biomarkers. Individuals with ASD or SCD require lifelong interventions tailored to their development stages. However, most existing interventions primarily focus on early childhood, leaving adolescents relatively underserved.
View Article and Find Full Text PDFBiomed Pharmacother
September 2025
Department of Biomedical Sciences, Institute of Health, Jimma University, Jimma 378, Ethiopia; Division of Research & Development, Lovely Professional University, Phagwara 144411, India. Electronic address:
Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterised by cognitive decline and the accumulation of misfolded proteins, including amyloid-beta and hyperphosphorylated tau, which impair neuronal function and promote cell death. These misfolded proteins disrupt proteostasis by forming toxic aggregates that exacerbate disease progression. Molecular chaperones, such as heat shock proteins, actively maintain protein homeostasis by assisting in proper folding, preventing aggregation, and promoting the clearance of misfolded proteins.
View Article and Find Full Text PDFJ Alzheimers Dis
September 2025
IRCCS Fondazione Don Carlo Gnocchi ONLUS, Milan, Italy.
The "biological view" of Alzheimer's disease (AD) focuses on the role of plaques and tangles and excludes syndromes from the disease definition. However, cognitive syndromes are fundamental aspects of AD and are the ultimate target of treatments. Accordingly, the study of cognitive syndromes should remain a major goal of AD research.
View Article and Find Full Text PDFJAMA Netw Open
September 2025
School of Medicine and Public Health, University of Wisconsin-Madison, Madison.
Importance: It is unclear whether the duration of amyloid-β (Aβ) pathology is associated with neurodegeneration and whether this depends on the presence of tau.
Objective: To examine the association of longitudinal atrophy with Aβ positron emission tomography (PET)-positivity (Aβ+) and the estimated duration of Aβ+ (Aβ+ duration), controlling for tau-positivity.
Design, Setting, And Participants: Data for this longitudinal cohort study were drawn from the Wisconsin Registry for Alzheimer Prevention and the Wisconsin Alzheimer Disease Research Center Clinical Core Study.