Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Two children are presented with similar appearing small urographic defects in the ureter and renal pelvis similar to pyeloureteritis cystica. In one patient with aplastic anemia who died the abnormalities represented areas of subepithelial hemorrhage. Another child had clinically diagnosed Henoch-Schonlein purpura and the defects were probably due to subepithelial hemorrhage.
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PMID:Subepithelial hemorrhage in the renal pelvis and ureter simulating pyeloureteritis cystica. 123 31

A case of transient stenosing ureteritis in a boy presenting with the clinical features of Henoch-Schoenlein purpura (diffuse articular swelling, petechiae, abdominal pain) complicated by macroscopic haematuria with blood clots is reported. On urography the right collecting system and the right ureter up to the distal lumbar portion were dilated owing to tight ureteral stenosis at that level. Above the stricture, numerous ring-like functional ureteral wall defects were detectable. On the left a stenosis was evident at the lumbo-sacral level with mild dilatation of the ureter. A small filling defect due to subephitelial haemorrhage was evident in the upper part of this ureter. Three months later, after prednisone therapy, the urography was normal on the right: residual mild stenosis was still evident on the left. Radiological findings in Henoch-Schoenlein purpura and the possible differential diagnosis of this condition are discussed.
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PMID:[Transient stenosing ureteritis in childhood. A rare complication of rheumatoid purpura]. 408 56

Henoch-Schonlein purpura (HSP) is a systemic vasculitic disorder involving both arterioles and capillaries. Although mainly a disease of early childhood, it can occur at any age. HSP is typically recognized as a syndrome with four major components: rash, joint manifestations, abdominal symptoms and renal disease. It is usually a mild condition with a tendency to relapses and generally has a good prognosis. Occasionally, however, it takes on an aggressive course. Gastrointestinal involvement is potentially the most serious complication of HSP. It may mimic an abdominal emergency and in its severest form result in small bowel infarction and/or perforation. Renal manifestations range from asymptomatic haematuria and/or proteinuria through a nephrotic syndrome to progressive glomerulonephritis leading to end stage renal failure. Apart from the major components outlined above, HSP may affect almost every other bodily organ. Vasculitis involving the myocard, lungs (pulmonary haemorrhage), ureter (stenosing ureteritis) and nervous system have been reported. We describe a case of HSP in a 50 year old woman which was complicated by the development of necrotizing crescentic glomerulonephritis and a left hemiparesis due to cerebral vasculitis. Interestingly, this patient had first appeared at the age of 9 years with a nephrotic syndrome and had been diagnosed by renal biopsy at the age of 31 as IgA nephropathy (IgAN). On her current admission, steroid and immunosuppressive therapy resulted in an improvement of renal function and an almost complete disappearance of her neurologic deficit.
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PMID:[Crescentic glomerulonephritis and cerebral vasculitis in the course of Henoch-Schonlein purpura]. 1247 29

Nestin is an intermediate filament protein originally identified in neuroepithelial stem cells. This cytoskeletal-associated protein is also expressed in some non-neuronal organs including renal tubular cells and glomerular endothelial cells during kidney development. Little is known, however, about nestin expression in the kidney during injury. In this study, we find nestin expression induced in renal tubular and interstitial myofibroblasts in the adult rat kidney following unilateral ureteral obstruction. The degree of nestin expression was well correlated with the degree of tubulointerstitial fibrosis. Immunohistochemical identification of specific nephron segments showed that nestin was primarily expressed by proximal tubules, partially by distal tubules and thick ascending limbs of Henle but not by collecting ducts. The nestin-positive tubular cells also expressed vimentin and heat-shock protein 47 (HSP47) suggesting these cells reverted to a mesenchymal phenotype. Not all vimentin- or HSP-expressing cells expressed nestin; however, suggesting that nestin is distinct from these conventional mesenchymal markers. Nestin expression was also found associated with phenotypical changes in cultured renal cells induced by hypoxia or transforming growth factor-beta. Nestin expression was located in hypoxic regions of the kidney with an obstructed ureter. Our results indicate that nestin could be a novel marker for tubulointerstitial injury.
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PMID:Nestin expression in the kidney with an obstructed ureter. 1765 33

Henoch-Schonlein purpura (HSP) is an immune-mediated systemic vasculitis generally found in children. The standard manifestations of HSP are palpable purpura, arthritis, abdominal pain, and renal complications. Although less common, there are significant urological manifestations associated with HSP. The primary objective of this review is to encourage better understanding and management of HSP by emphasizing the common and rare manifestations of HSP, how they are diagnosed, and the latest treatment options for mild to severe complications. Medline searches of HSP and its urological manifestations were conducted along with searches on current diagnostic and treatment methods. Urological manifestations of HSP involve the kidney, ureter, bladder, prostate, scrotum, testicle, and penis. Diagnosis and management of HSP are not always clear due to differential diagnosis and diversity of symptom presentation. Treatment for HSP is mainly supportive and includes use of nonsteroidal anti-inflammatory drugs for pain relief. In more severe cases, glucocorticoids, methylprednisolone, plasmapheresis, and peritoneal and hemodialysis are reported successful. It is important to note different symptoms of HSP in order to distinguish HSP from other diseases. Early diagnosis may prevent severe complications. Treatment options vary from conservative to invasive depending on the severity of the disease and time frame of diagnosis.
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PMID:Urological Manifestations of Henoch-Schonlein Purpura: A Review. 2688 20