Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0038002 (splenomegaly)
 9,873 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Resistance and elastic deformability of red cells are due to a protein network (cytoskeleton) that laminates the lipid bilayer and to proteins that span the latter. All proteins are interconnected. Their structure as well as the structure of the corresponding genes are now well known. Hereditary spherocytosis (HS) is the most common hemolytic anemia due to a red cell membrane defect. It derives from alterations of the following genes: ANK1, EPB3, ELB42, SPTA1 and SPTB. This condition is clinically, biochemically and genetically heterogeneous. The osmotically fragile spherocytes are selectively trapped in the spleen and destroyed. Increased red blood cell destruction causes the three main clinical signs of HS: anemia, jaundice and splenomegaly. In this review we analyze the most recent advances concerning the molecular basis and the clinical course of HS. In particular, we examine the major individual proteins that constitute the skeleton, which are now known to play an essential role in the pathogenesis of HS. This paper also includes a review of the therapeutical approach to HS. Concerning the diagnosis we provide a flow chart from the clinical aspects to the molecular diagnosis.
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PMID:Hereditary spherocytosis: from clinical to molecular defects. 957 79

A 70-year-old Japanese man presented to our hospital with a 1-month history of progressive general fatigue and anorexia. A physical examination revealed severe anemic condition, mild persistent splenomegaly, and no palpable surface lymph nodes. He had pleural effusion and ascites, though no malignant cells were detected in the effusion. He eventually died without any diagnosis of his disease. Immunohistochemical staining of his tumor after autopsy showed atypical cells that were negative for epithelial membrane antigen (EMA), keratin (AE1/3), keratin-20, vimentin, factor VIII, leukocyte common antigen (LCA/T200; CD45), myeloperoxidase (MPO), terminal deoxynucleotidyl transferase (TdT), lysozyme, CD1a, CD3, CD4, CD10, CD15, CD20 (L26), CD21, CD23, CD34, CD43, CD56, CD68, CD79a, CD138, and EBER-1 in situ. Only a few scattered cells expressed CD30, but they showed no staining for anaplastic large-cell lymphoma kinase (ALK). A few scattered cells expressed S-100 antigen and the majority of cells dominantly expressed dendritic cell-associated antigens (CD35, FDC, Ki-M1p). In conclusion, we found this unknown primary tumor to be consistent with a follicular dendritic cell tumor with anaplastic features.
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PMID:Follicular dendritic cell tumor as an unknown primary tumor. 1738 Apr 43