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Inhibition of amyloid-beta aggregation by phenyl butyric acid analogs and bile acids: a comprehensive in silico study.
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Department of Biophysics, Panjab University, Chandigarh, 160014, India.
Alzheimer's disease (AD) is a degenerative neurological disorder defined by the formation of β-amyloid (Aβ) plaques and neurofibrillary tangles within the brain. Current pharmacological treatments for AD only provide symptomatic relief, and there is a lack of definitive disease-modifying therapies. Chemical chaperones, such as 4-Phenylbutyric acid (4PBA) and Tauroursodeoxycholic acid, have shown neuroprotective effects in animal and cell culture models.
View Article and Find Full Text PDFElectrochemical capacitance-based aptasensor for HER2 detection.
Biomed Microdevices
January 2025
Department of Physics, Faculty of Philosophy, Science and Letter, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil.
The overexpression of Human Epidermal Growth Factor Receptor 2 (HER2) protein is specifically related to tumor cell proliferation in breast cancers. Its presence in biological serum samples indicates presence or progression of cancer, becoming a promise biomarker. However, their detection needs a simple and high accuracy platform.
View Article and Find Full Text PDFMapping of Amyloid-β Aggregates In Vivo by a Fluorescent Probe with Dual Recognition Moieties.
Anal Chem
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State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
The spontaneous aggregation of amyloid-β (Aβ) leads to neuronal cell death in the brain and causes the development of Alzheimer's disease (AD). The efficient detection of the aggregation state of Aβ holds significant promise for the early diagnosis and subsequent treatment of this neurodegenerative disorder. Currently, most of the fluorescent probes used for the detection of Aβ fibrils share similar recognition moieties, such as the ,-dimethylamino group, ,-diethylamino group, and piperidyl group.
View Article and Find Full Text PDFTP53 Mutations in Myeloproliferative Neoplasms: Context-Dependent Evaluation of Prognostic Relevance.
Am J Hematol
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CRIMM, Center Research and Innovation of Myeloproliferative Neoplasms, University of Florence, AOU Careggi, Florence, Italy.
The clinical relevance of TP53 mutations (TP53) in myeloproliferative neoplasms (MPN) and their prognostic interaction with MPN subtype designation has not been systematically studied. In the current study, 114 patients with MPN harboring TP53 (VAF ≥ 2%) were evaluated for overall survival (OS), calculated from the time of TP53 detection: chronic phase myelofibrosis (MF-CP; N = 61); blast-phase (MPN-BP; N = 31) or accelerated-phase (MPN-AP; N = 16) MPN, and polycythemia vera/essential thrombocythemia (PV/ET; N = 6). Sixty-five (57%) patients harbored International Consensus Classification (ICC)-defined multihit TP53 and 56 (49%) monosomal/complex karyotype (MK/CK).
View Article and Find Full Text PDFBiphasic glucose-stimulated insulin secretion over decades: a journey from measurements and modeling to mechanistic insights.
Life Metab
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New Cornerstone Science Laboratory, State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, National Biomedical Imaging Center, The Beijing Laboratory of Biomedical Imaging, Peking-Tsinghua Center for Life Sciences, School of Future Technology, Peking University, Beijing 100871, China.
Glucose-stimulated insulin release from pancreatic β-cells is critical for maintaining blood glucose homeostasis. An abrupt increase in blood glucose concentration evokes a rapid and transient rise in insulin secretion followed by a prolonged, slower phase. A diminished first phase is one of the earliest indicators of β-cell dysfunction in individuals predisposed to develop type 2 diabetes.
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