Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0033687 (proteinuria)
 24,015 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The effects of indomethacin and lysine acetylsalicylate (L-ASA) were compared in rats in which autologous nephrotoxic serum nephritis had been induced. The aim of this study was to offer support to the hypothesis that indomethacin might reduce proteinuria through increased synthesis of glomerular basement membrane by the podocytes. Both drugs were injected intraperitoneally at the dosage of 4 mg/kg body weight daily during a 6-day period into 40 rats rendered nephritic by rabbit nephrotoxic serum injection. Rats treated with indomethacin showed a marked decrease of proteinuria (tested by the 3% sulfosalicylic aicd method) and a clear ultrastructural picture of hyperplasia and hypertrophy of podocytes. Rats given L-ASA showed only a slight correction of proteinuria and less specific ultrastructural modification. These observations suggest that indomethacin decreases proteinuria in nephritic rats not only through its anti-inflammatory activity, but possible also by a peculiar mechanism, namely an increase in podocytic basement membrane synthesis.
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PMID:Indomethacin and lysine acetylsalicylate in rats with autologous nephrotoxic serum nephritis. Biochemical and morphological studies. 74 Jan 8

Glomerular damage in nephrotoxic nephritis is mediated by circulating cells (neutrophils, platelets, and macrophages) infiltrating the glomerular tuft and responsible for the inflammatory reactions. It has been suggested that inflammatory cells may participate in glomerular inflammation through the synthesis and release of eicosanoids derived from the metabolism of arachidonic acid. On the other hand, old data and recent evidence indicate that eicosanoids derived from renal arachidonic acid metabolism play an important role in maintaining hemodynamics, especially in disease conditions. We wanted to evaluate the differential role of arachidonic acid metabolites derived from circulating or renal cells on the evolution of nephrotoxic nephritis. We used a nonselective cyclooxygenase inhibitor, aspirin, which blocks eicosanoid synthesis both in circulating cells and in renal tissue, as compared with a selective cyclooxygenase inhibitor, sulindac, which inhibits arachidonic acid metabolism in circulating cells, partially sparing renal cyclooxygenase. Aspirin, at a dosage that almost completely inhibits both circulating cell and renal arachidonate metabolites, worsens the morphologic expression of rabbit nephrotoxic nephritis and negatively influences the clinical course of the disease. Sulindac, at a dose that suppresses circulating platelet cyclooxygenase activity by 90%, but only partially affects renal prostaglandin synthesis, prevents extracapillary proliferation and reduces proteinuria without negative influence on glomerular hemodynamics.
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PMID:Effect of aspirin and sulindac in rabbit nephrotoxic nephritis. 308 72

1 The effects of aspirin, prednisolone, and indomethacin on nephrotoxic serum nephritis in rats was studied. The nephritis was induced by a single intravenous injection of nephrotoxic serum (NTS, rabbit anti-serum against the water-soluble renal antigen of the rat). The injection of NTS induced the heterologous phase of proteinuria (within a day after NTS injection) and then the autologous phase (5 to 7 days after NTS injection). The effect of drugs given before the NTS (i.e. prophylactically) or after the NTS (i.e. therapeutically) was investigated. 2 Aspirin, which was given orally at doses of 150 and 250 mg/kg daily from the day before NTS injection, suppressed the development of proteinuria in both the heterologous and the autologous phase, and lowered the serum cholesterol level towards the normal level. Aspirin (250 mg/kg daily, orally) had no significant effect against the established proteinuria in the autologous phase. 3 Prednisolone, which was given orally at doses of 3 and 5 mg/kg daily from the day before NTS injection, elevated the proteinuria in the heterologous phase, while inhibiting the development of proteinuria in the autologous phase. Prednisolone (5 mg/kg daily, orally) was ineffective against established proteinuria in the autologous phase. 5 Indomethacin (3 mg/kg daily, orally) did not exert any significant effect on proteinuria in either the heterologous or the autologous phase.
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PMID:Effects of aspirin, prednisolone and indomethacin on nephrotoxic serum nephritis in the rat. 707 88

Integrins play a major role in cell-matrix interactions. They alter cellular functions upon binding to matrix proteins or following cross linking and can in turn be regulated by other stimuli acting on the cell. In the kidney integrins may help regulate cellular proliferation and matrix turnover during renal injury, effects which could play an important role in the pathogenesis of glomerulosclerosis and the resultant loss of renal function. Alterations in cell adhesiveness may contribute to tubular epithelial cell sloughing and tubular obstruction in acute renal failure and may play a role in alterations of glomerular capillary wall permeability, leading to proteinuria. Adhesion molecules on GEC may be important targets of antibodies in several models of proteinuric renal disease and areas of GEC detachment from the GBM may be involved in the development of glomerulosclerosis. Since integrins are major links between the ECM and cells, better understanding of their function in the normal kidney and during injury is of importance to a better understanding of the pathogenesis of renal disease.
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PMID:Integrin matrix receptors in renal injury. 815 6

To analyze determinants of the risk of pregnancy-induced hypertension (PIH) with or without proteinuria, we compared characteristics of women enrolled in the Italian Study of Aspirin in Pregnancy who developed PIH and those who did not. A total of 756 women were included in the present analysis; of these, 132 women (17%) developed PIH during the trial. The risk of developing PIH tended to increase with maternal age: in comparison with women age 20-25 years, the odds ratio (OR) estimates of risk ratio were 3.5 [95% confidence interval (CI) = 1.6-7.1] in women age 26-30 years and 4.2 (95% CI = 1.9-8.8) in those age > 30 years. There was little relation between development of PIH and education. PIH risk increased according to nonpregnant body mass index; in comparison with women with Quetelet's index (kg per m2) < 25, the OR estimates were 1.7 (95% CI = 1.1-2.7) and 2.1 (95% CI = 1.3-3.6), respectively, for women with a value for Quetelet's index of > 25-30 and > 30. Parous women were at decreased risk of PIH: in comparison with nulliparas, the ORs were 0.7 (95% CI = 0.4-1.0) and 0.5 (95% CI = 0.3-0.9), respectively, in women reporting 1 or > or = 2 births. There was no important relation between previous spontaneous or induced abortion and PIH risk.
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PMID:Risk factors for pregnancy-induced hypertension in women at high risk for the condition. Italian Study of Aspirin in Pregnancy Group. 872 47

We describe a case of a 10 year-old boy who had fever, weakness, anorexia, weight loss and general malaise. No other remarkable symptoms were present. He had been treated with Aspirin and Ibuprofen. Deterioration of renal function, glucosuria, proteinuria, anemia and increased erythrocyte sedimentation rate were detected. After 7 days observation with no treatment, renal function worsened, glucosuria increased and fever persisted. A renal biopsy was performed and acute tubulointerstitial nephritis was diagnosed. The most common aetiologies of this entity were excluded. An ophthalmologic study revealed bilateral anterior uveitis, therefore the patient was diagnosed as having tubulointerstitial nephritis with uveitis. The child improved on corticosteroid therapy, but uveitis relapsed when treatment was stopped.
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PMID:Tubulointerstitial nephritis and asymptomatic uveitis. 1106 42

The phenomenon of implantation anchors the embryo into the uterine wall and produces a hemochorial placenta that maintains the pregnancy and fetal growth. Implantation and placentation are intimately linked and cannot be dissociated either in time or in space. Preeclampsia is characterized by hypertension and proteinuria. It is secondary to an anomaly of the invasion of the uterine spiral arteries by extra-villous cytotrophoblast cells, associated with local disruptions of vascular tone, of immunological balance and inflammatory status, and sometimes with genetic predispositions. Preeclampsia is a disease of early pregnancy, a form of incomplete spontaneous abortion, but is expressed late in pregnancy. Aspirin may play a favorable role in implantation which is related to the genesis of preeclampsia and some cases of intra-uterine growth restriction. The most important points in obtaining a preventive effect from low-dose aspirin during the pregnancy are early treatment (before 13 weeks of gestation) and the prescription of a sufficient dose (more than 100 mg per day).
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PMID:Pathophysiology of preeclampsia: links with implantation disorders. 1526 45

We report the case of a 37 year old man who suffered from Crohn's Disease (CD), and was receiving treatment with mesalazine (5-ASA). Nine years after the diagnosis, because of detecting a slight proteinuria, a renal biopsy is made, being the anatomo-pathologic result compatible with membranous glomerulonephritis (MGN). Checking previous literature we have only found two cases reported of MGN in coincidence with Inflammatory Bowel Disease (IBD), one in association with Ulcerative Colitis and the other with Crohn's Disease in a 12 years old boy. This is, therefore, the second case presenting MGN associated with CD and the first in an adult patient.
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PMID:[Association between membranous glomerulonephritis and Crohn's disease]. 1545 98

To study the efficacy and the mechanism of Colquhoumia root (Tripterygium hypoglaucum (Le,vL) Hutch) in the treatment of mesangial proliferation glomerulonephritis (MsPGN), SD rats were injected with anti-thymocyte serum (ATS) to make MsPGN model (anti-Thyl model). The rats were then divided into 3 groups: normal control group, anti-Thyl model group and treatment group. Histopathological (HE, PAS), immunohistochemical, RT-PCR technique and computer imaging analysis system were used to evaluate mesangial matrix production, the expression of TGF-beta1 protein and mRNA in the tissues of kidney. Our result showed that proteinuria and the ratio of extracellular matrix/glomerular capillaries area (ECM/CA) were increased significantly in model group. The expression of both TGF-beta1 protein and mRNA in glomeruli was much higher in model group than in control group (P < 0.01). After the treatment with Colquhoumia root, proteinuria, ECM/CA and the expression of both TGF-beta1 protein and mRNA in glomeruli were significantly decreased in treatment group as compared with those in model group. It is concluded that Colquhoumia root is effective in reducing proteinuria and mesangial matrix proliferation in MsPGN and it may achieve these effects by inhibiting the expressions of TGF-beta1 protein and mRNA of mesangial cells.
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PMID:Effect of Colquhoumia root on the expression of transforming growth factor-beta in mesangial proliferation glomerulonephritis model. 1619 90

Cardiovascular risk is generally high in patients with both hypertension and diabetes and should be specifically assessed for each individual. The blood pressure target is<130/80 mm Hg. Two or even three different drugs are often necessary to reach this rather difficult goal. Angiotensin-converting enzyme (ACE) inhibitors are preferred for patients with renal damage. Proteinuria should be reduced to less than 0.5 g/day. Associated risk factors should be treated with equal effectiveness. In particular, LDL cholesterol should be lowered to less than 1 g/L when additional risk factors are present. Aspirin (0.75 mg a day) should be given routinely as soon as blood pressure is controlled.
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PMID:[Management of hypertension in patients with diabetes]. 1678 70


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