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Idiopathic CD4+ lymphocytopenia (ICL) is a rare medical syndrome in which the body has too few CD4 + T lymphocytes, which are a kind of white blood cell. [2] ICL is sometimes characterized as "HIV-negative AIDS", though, in fact, its clinical presentation differs somewhat from that seen with HIV/AIDS. [ 3 ]
Image of CD4 co-receptor binding to MHC (Major Histocompatibility Complex) non-polymorphic region. In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein that serves as a co-receptor for the T-cell receptor (TCR). CD4 is found on the surface of immune cells such as helper T cells, monocytes, macrophages, and dendritic cells.
The depletion of CD4 T cells and the development of chronic inflammation are signature processes in HIV pathogenesis that propel progression to acquired immune deficiency syndrome (AIDS). CD4 T cell depleted to the cell count of less than 200cell/μL in blood during AIDS allows various pathogens to escape T cell recognition, thus allowing ...
English: Depiction of the various key subsets of CD4-positive T cells with corresponding associated cytokines and transcription factors. Figure legend T cells leave the thymus in a naïve, antigen non-experiened state.
XLP syndrome X-linked lymphoproliferative syndrome (see Duncan Disease) XLSA X-linked sideroblastic anemia: XMEA X-linked myopathy with excessive autophagy: XMEN X-linked immunodeficiency with magnesium defect, Epstein-Barr virus infection and neoplasia XP Xeroderma pigmentosa: XSCID X-linked severe combined immunodeficiency: XXX syndrome ...
A congenital disorder of glycosylation (previously called carbohydrate-deficient glycoprotein syndrome) is one of several rare inborn errors of metabolism in which glycosylation of a variety of tissue proteins and/or lipids is deficient or defective. Congenital disorders of glycosylation are sometimes known as CDG syndromes.
The Glycoprotein Ib/V/IX complex is essential for normal haemostasis; deficiency results in Bernard-Soulier Syndrome, a syndrome of thrombocytopenia and giant platelets. CD42a: Platelet glycoprotein IX (GPIX) encoded by the GP9 gene. CD42b: Platelet glycoprotein Ib alpha chain encoded by the GP1BA gene. CD42c
Bare lymphocyte syndrome is a condition caused by mutations in certain genes of the major histocompatibility complex or involved with the processing and presentation of MHC molecules. It is a form of severe combined immunodeficiency .