Over the past decades, a wealth of information has been reported about the pathogenic features of immune thrombocytopenia (ITP). To this day, however, it is unclear whether the immune abnormalities associated with ITP play causative roles in the disease or are secondary epiphenomena brought on by the inflammatory processes that are associated with the disorder. Like the majority of all autoimmune diseases, ITP is an organ-specific disease and abnormalities in immune cell types, such as antigen-presenting cells (APC), T cells and B cells have been shown to play some sort of role in the initiation and/or perpetuation of the disease. This review will discuss recent advances in understanding three immune cells important in ITP pathophysiology: APC, T cells and B cells, and will review how they interact with each other to initiate and perpetuate ITP, particularly the chronic form of the disorder. It will also focus on new data related to the genetics of the disorder and discuss relevant animal models of ITP.
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http://dx.doi.org/10.1111/bjh.12480 | DOI Listing |
Cureus
November 2024
Department of Medicine, Mercyhealth Graduate Medical Education (GME) Consortium, Rockford, USA.
Thrombotic microangiopathies (TMA) are a group of conditions that present with varying degrees of microthrombi, thrombocytopenia, microangiopathic hemolytic anemia, renal dysfunction, and neurological impairment. Etiologies can be primary, such as thrombotic thrombocytopenic purpura (TTP), hemolytic uremic syndrome (HUS), and atypical hemolytic uremic syndrome (aHUS), or secondary, such as due to systemic infections, malignancies, immune-mediated conditions, and hypertensive emergencies. In hypertensive emergencies, this presentation can occur from mechanical stress placed on red blood cells as they pass through narrowed arteries due to edema and microangiopathic changes within the vessels themselves.
View Article and Find Full Text PDFProbl Radiac Med Radiobiol
December 2024
State Institution «National Research Center for Radiation Medicine, Hematology and Oncology of the National Academy of Medical Sciences of Ukraine», 53 Yuriia Illienka Str., Kyiv, 04050, Ukraine.
We present а rare clinical case of successful surgical treatment - combined left-sided hemicolectomy and cecal resection for colon cancer of two locations in a patient with idiopathic thrombocytopenic purpura, which, in our opinion, is due to radiation exposure is presented. It is shown that the biological effects of long-term ionizing radiation on critical organs can have a diverse nature both in terms of the time of occurrence and in their structure, which requires an individual approach, the involvement of related specialists and the necessary medical preoperative preparation for precise planning of surgical intervention taking into account all possible risks.
View Article and Find Full Text PDFCureus
November 2024
Hematology, Cheikh Khalifa International University Hospital, Mohammed VI University of Sciences and Health, Casablanca, MAR.
Evans syndrome (ES) is a rare syndrome characterised by the association of autoimmune idiopathic hemolytic anemia (AIHA) with immune thrombocytopenia (ITP) and, less commonly, autoimmune neutropenia (AIN). ES may be primary or secondary to some aetiology, including, exceptionally, tuberculosis. We describe a case of association between pulmonary and medullary tuberculosis and Evans syndrome with an effective response to antitubercular treatment and corticosteroids.
View Article and Find Full Text PDFJ Family Med Prim Care
November 2024
Department of Community Medicine, Shri MP Shah Medical College, Jamnagar, Gujarat, India.
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by damage to organs and cells, initially mediated by tissue-binding autoantibodies and immune complexes. Lymphomas have been frequently reported, but the association of SLE with acute leukemia is rare and likely coincidental. We report a case of a 40-year-old female admitted for an etiological diagnosis of fever and dyspnea with peripheral edema.
View Article and Find Full Text PDFCureus
November 2024
Department of Pathology, Atal Bihari Vajpayee Government Medical College, Vidisha, IND.
Background: The most typical cause of thrombocytopenia is immune-mediated thrombocytopenic purpura (ITP). Thrombocytopenia can cause insufficient clot formation and increase the risk of bleeding. Bone marrow aspiration is commonly used for this purpose.
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