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Novel method for detection of Aβ and Iso-D7-Aβ N-terminus-specific B cells and Iso-D7-Aβ-specific antibodies.
Biol Methods Protoc
January 2025
Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, Moscow, Russia.
Alzheimer's disease (AD) is a multifactorial systemic disease that is triggered, at least in part, by the accumulation of β-amyloid (Aβ) peptides in the brain, but it also depends on immune system-mediated regulation. Recent studies suggest that B cells may play a role in AD development and point to the accumulation of clonally expanded B cells in AD patients. However, the specificity of the clonally expanded B cells is unknown, and the contribution of Aβ-specific B cells to AD pathology development is unclear.
View Article and Find Full Text PDFSerum β-secretase 1 (sBACE1) activity in subjective cognitive decline: an exploratory study.
Geroscience
January 2025
Department of Translational Medicine and for Romagna, Università of Ferrara, Via Luigi Borsari 46, 44121, Ferrara, Italy.
β-Secretase-1 (BACE1) plays a key role in the regulation of cerebral amyloid-β homeostasis, being involved in amyloidogenic and, as recently found, amyloidolytic pathways. Growing evidence indicates that increased serum BACE1 (sBACE1) activity might represent an early biomarker for Alzheimer's disease. Here, we tested the hypothesis that an increase in sBACE1 activity may already occur in individuals with subjective cognitive decline (SCD).
View Article and Find Full Text PDFNucleotide sequence variants, gene expression and serum profile of immune and antioxidant markers associated with brucellosis resistance/susceptibility in Shami goat.
Ir Vet J
January 2025
Animal and Poultry Production Division, Department of Animal and Poultry Breeding, Desert Research Center, Cairo, Egypt.
Brucellosis is a highly contagious zoonotic bacterial disease. It has considerable negative consequences on the animal production industry worldwide. The objective of this study was to investigate the genetic and molecular variations in Shami goat susceptible to Brucella infection.
View Article and Find Full Text PDFIntermittent and increasing intravenous lipopolysaccharide's impact on metabolism, inflammation and production in lactating dairy cows.
J Dairy Sci
January 2025
Department of Animal Science, Iowa State University, Ames, Iowa 50011. Electronic address:
Experimental objectives were to create a chronic inflammatory model to evaluate the effects of persistent immune activation on metabolism, inflammation, and productivity in lactating dairy cows. Twelve lactating Holstein cows (631 ± 16 kg BW; 124 ± 15 DIM) were enrolled in a study with 2 experimental periods (P); during P1 (5 d), cows were fed ad libitum and baseline data were obtained. At the initiation of P2 (7 d), cows were assigned to 1 of 2 treatments: 1) saline-infused and pair-fed (PF; 5 mL intravenously (IV) sterile saline on d 1, 3, and 5; n = 6) or 2) lipopolysaccharide infused and ad libitum-fed (LPS; 0.
View Article and Find Full Text PDFThe serum amyloid A to C-reactive protein ratio is lower in men than in women because of higher-C-reactive protein concentrations in men.
Mod Rheumatol
January 2025
Department of Rheumatology, Higashiosaka City Medical Center, Osaka, Japan.
Objectives: We previously found that discrepancy between serum amyloid A (SAA) and C-reactive protein (CRP) levels linked to the difference of SAA/CRP ratio in patients with early rheumatoid arthritis, and the ratio varied among different patients. This study aimed to determine why the SAA/CRP ratio differed among different patients.
Methods: The patients (n=466) with most of inflammatory diseases were enrolled.
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