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IgA nephropathy (IgAN), also known as Berger's disease (/ b ɛər ˈ ʒ eɪ /) (and variations), or synpharyngitic glomerulonephritis, is a disease of the kidney (or nephropathy) and the immune system; specifically it is a form of glomerulonephritis or an inflammation of the glomeruli of the kidney.
Hyper IgM syndrome is a rare primary immune deficiency disorders characterized by low or absent levels of serum IgG, IgA, IgE and normal or increased levels of serum IgM. [ 8 ] They are resulting from mutations in the pathway from B-cell activation to isotype class switching.
Secretory IgA levels fluctuate diurnally, with the highest levels found in the small intestine and feces around ZT6, the middle of the light period. [18] The regulation of IgA secretion is related to the microbiota, and IgA is known to control specific members of oscillating microbes through direct interactions. [18]
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People with this deficiency lack immunoglobulin A (IgA), a type of antibody that protects against infections of the mucous membranes lining the mouth, airways, and digestive tract. It is defined as an undetectable serum IgA level in the presence of normal serum levels of IgG and IgM, in persons older than 4 years. It is the most common of the ...
Regular screenings for high blood pressure can help determine whether you’re at risk of health issues such as heart disease and stroke. A stroke, for example, can cause serious brain damage. If ...
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The diagnosis can be made on the basis of clinical findings, the peripheral blood smear, and low immunoglobulin levels. Typically, IgM levels are low, IgA levels are elevated, and IgE levels may be elevated; paraproteins are occasionally observed. [16] Skin immunologic testing (allergy testing) may reveal hyposensitivity.