Pretibial myxoedema presenting as a diffuse plaque form is being reported in a hypothyroid patient.
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Inter-network functional connectivity increases by beta-amyloid and may facilitate the early stage of tau accumulation.
Neurobiol Aging
January 2025
Department of Radiology, Brain Health Imaging Institute, Weill Cornell Medicine, New York, NY, United States.
Alzheimer's disease (AD) is pathologically marked by tau tangles and beta-amyloid (Aβ) plaques. It has been hypothesized that Aβ facilitates spread of tau outside of the medial temporal lobe (MTL), but exact mechanism of this facilitation remains unclear. We aimed to test the hypothesis that abnormal Aβ induces an increase in inter-network functional connectivity, which in turn induces early-stage tau elevation in limbic network.
View Article and Find Full Text PDFWells' Syndrome Associated With Idiopathic Hypereosinophilic Syndrome in a Child: A Case Report.
Cureus
December 2024
Dermatology and Venereology, Faculty of Medicine, Al-Azhar University, Cairo, EGY.
Wells' syndrome is a rare inflammatory disease characterized by recurrent, erythematous plaques with histological flame figures, which can be associated with idiopathic hypereosinophilic syndrome (IHES). We present a case of a nine-year-old boy who presented with a one-year history of an itchy rash on his legs associated with peripheral eosinophilia. The rash initially started as an annular plaque and developed raised borders with central hyperpigmentation.
View Article and Find Full Text PDFA Case of Lepromatous Leprosy Presenting With Multiple Morphologies in Philadelphia.
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December 2024
Dermatology, Temple University Hospital, Philadelphia, USA.
Leprosy is an uncommon chronic mycobacterial infection in the United States caused by . There are two major forms of the infection, lepromatous leprosy and tuberculoid leprosy, with borderline forms of each. Leprosy is even more uncommon in the Northeastern United States and can present with various symptoms and skin findings, including erythematous or hypopigmented patches or plaques with accompanying hypoesthesia or anesthesia, anhidrosis, or alopecia.
View Article and Find Full Text PDFHemagglutinin with a polybasic cleavage site confers high virulence on H7N9 avian influenza viruses.
Poult Sci
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Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, PR China; Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, PR China. Electronic address:
H7N9 avian influenza virus (AIV) first emerged in February 2013 in China, and early isolates were all low pathogenic (LP). After circulation for a few years in live poultry markets of China, LP H7N9 AIVs evolved into a highly pathogenic (HP) form in late 2016. Deduced amino acid sequence analysis of hemagglutinin (HA) gene revealed that all HP H7N9 AIVs have obtained four-amino-acid insertion at position 339-342 (H7 numbering), making the cleavage site from a monobasic motif (LP AIVs) to a polybasic form (HP AIVs).
View Article and Find Full Text PDFCo-Localized in Amyloid Plaques Cathepsin B as a Source of Peptide Analogs Potential Drug Candidates for Alzheimer's Disease.
Biomolecules
December 2024
Section of Cell Biology and Biophysics, Department of Biology, School of Sciences, National and Kapodistrian University of Athens, Panepistimiopolis, 157 01 Athens, Greece.
Alzheimer's disease (AD) is a complex neurodegenerative disorder characterized by extracellular amyloid plaques, predominantly consisting of amyloid- (A) peptides. The oligomeric form of A is acknowledged as the most neurotoxic, propelling the pathological progression of AD. Interestingly, besides A, other proteins are co-localized within amyloid plaques.
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