نتایج جستجو برای: antibody deficiency
تعداد نتایج: 299696 فیلتر نتایج به سال:
Background: B cell chronic lymphocytic leukaemia (CLL) is associated with immune suppression and patients are at increased clinical risk following SARS-CoV-2 infection. Covid-19 vaccines offer the potential for protection against severe infection but relatively little known regarding profile of antibody response first or second vaccination. Methods: We studied spike-specific responses and/or...
BACKGROUND Congenital or acquired prothrombin deficiency is a rare condition. CASE REPORT A 2-year-7-month old Thai girl presented with ecchymosis, bleeding at both thighs and right ear lobe after a self-limited viral infection. RESULTS The investigations revealed prolonged APTT and PT, prothrombin level 6% and positive anticardiolipin antibody 26.2 IU/mL. The 1:1 mixture of her plasma and ...
BACKGROUND Genetic variations in MBL2 that reduce circulating levels and alter functional properties of the mannose binding lectin (MBL) have been associated with many autoimmune and infectious diseases. We examined whether MBL2 variants influence the outcome of hepatitis C virus (HCV) infection. METHODS Participants were enrolled in the Urban Health Study of San Francisco Bay area injection ...
types of primary immune deficiencies in human subjects. Often symptoms do not appear until the latter part of the first year of life, as passively acquired IgG from the mother decreases to below protective levels. As with the T-cell immune deficiencies, the spectrum of antibody deficiencies is broad, ranging from the most severe type of antibody deficiency with totally absent B cells and serum ...
Vitamin A deficiency is associated with increased childhood morbidity and mortality from respiratory and diarrheal diseases. In order to evaluate the effect of vitamin A on human antibody responses, we developed a vitamin A-deficient severe combined immunodeficient (SCID) mouse model. Vitamin A-deficient mice were produced by depriving them of vitamin A at day 7 of gestation. Mice were reconsti...
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