Ads
related to: antibodies that attack platelets
Search results
Results From The WOW.Com Content Network
Anti-platelet autoantibodies in a pregnant woman with immune thrombocytopenic purpura will attack the patient's own platelets and will also cross the placenta and react against fetal platelets. Therefore, ITP is a significant cause of fetal and neonatal immune thrombocytopenia.
Further, in those with ITP, platelet counts usually return to pre-pregnancy levels after delivery. [63] Anti-platelet autoantibodies in a pregnant woman with ITP will attack the patient's own platelets and will also cross the placenta and react against fetal platelets leading to thrombocytopenia.
Antiphospholipid syndrome, or antiphospholipid antibody syndrome (APS or APLS), is an autoimmune, hypercoagulable state caused by antiphospholipid antibodies.APS can lead to blood clots in both arteries and veins, pregnancy-related complications, and other symptoms like low platelets, kidney disease, heart disease, and rash.
In HIT, the immune system forms antibodies against heparin when it is bound to a protein called platelet factor 4 (PF4). These antibodies are usually of the IgG class and their development usually takes about five days. However, those who have been exposed to heparin in the last few months may still have circulating IgG, as IgG-type antibodies ...
The patient develops antibodies to the HPA-1a antigen leading to platelet destruction. In some cases, HPA-5b has also been implicated. It is unclear why alloantibodies attack the patient's own, as well as any transfused allogeneic random donor platelets.
Antibodies to high prevalence red cell antigens can sometimes mask the detection of clinically significant alloantibodies because the corresponding antigen is present on most, if not all, of the screening red blood cells used to detect these antibodies possess the antigen. This is where the monocyte monolayer assay may be useful.
Ads
related to: antibodies that attack platelets