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  • 1
    ISSN: 1436-2813
    Keywords: prostaglandin ; aspirin ; renal insuffiency ; endotoxin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effects of the anticoagulants, heparin and low molecular weight heparin (LMWH), and the antiplatelet agents, prostaglandin E1 (PGE1) and aspirin, on endotoxin-induced renal insufficiency not induced by prerenal factors, were investigated using rabbits to evaluate the clinical usefulness of these drugs and their possible involvement in the activation of hemostasis in renal insufficiency. The intravenous administration of PEG1, at 0.4 μg/kg/min, or aspirin, at 5 mg/kg, significantly restored all the parameters of renal function measured in the present study, namely, effective renal plasma flow, glomerular filtration rate and urine N-acetyl-β-D-glucosaminidase, as well as histological renal ischemic changes. On the other hand, neither heparin nor LMWH, even at a high dose, improved any parameter. As the antiplatelet effect is the common property of PGE1 and aspirin, it is suggested that the activation of platelets may be prerequisite to the occurrence of renal insufficiency induced by endotoxin. The results of this study thus show that PGE1 or aspirin may be applied in clinical use for renal insufficiency complicated by sepsis or endotoxemia.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1436-2813
    Keywords: portal vein calcification ; superior mesenteric vein thrombosis ; dysplasminogenemia ; abnormal plasminogen ; idiopathic portal hypertension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report herein a case of a 68-year-old Japanese woman in whom calcification of the portal vein was recognized by plain abdominal X-ray radiograph and computed tomography (CT) scan when she presented with repeated thrombosis of the portal system. Following emergency small bowel resection for intestinal necrosis caused by superior mesenteric vein thrombosis, hematological studies revealed the association of dysplasminogenemia. A review of 21 cases of portal vein calcification reported between 1940 and 1990 revealed the average age to be 53.7±10.2 years and the male/female ratio 17:4. Although the majority of cases suffered from portal hypertension (81%), only 38% had any evidence of liver cirrhosis, while 52% had normal liver function, being comparable to idiopathic portal hypertension. The calcified lesions were located in the portal vein in 100% of cases, the splenic vein in 62%, the superior mesenteric vein in 33%, and the inferior mesenteric vein in 0%. The precise etiology of the calcification was not elucidated in any of the reviewed cases. The patient reported herein is the first reported case of portal vein calcification due to repeated thrombosis of the portal system caused by dysplasminogenemia, which could be accounted as a cause of idiopathic portal hypertension.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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