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)

Renal biopsy specimens were obtained from nine patients with proteinuria and persistent macroscopic or microscopic hematuria. Histologic examination either disclosed no abnormality or showed moderate mesangial thickening and occasionally, evidence of focal segmental glomerulonephritis. Immunofluorescent studies revealed diffuse generalized mesangial deposits of IgA, IgG and betalc in all specimens. Fibrinogen deposits were present in the mesangial space in four specimens only, while IgM was uniformly absent. Serial sections of identical glomeruli allowed the localization of betalc within both IgA and IgG deposits. Ultrastructural studies of the renal biopsy specimens showed accumulation of electron-dense material in the subendothelial region of the capillary loops and the mesangium, with thickening of its matrix. Follow-up data indicated a generally good prognosis.
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PMID:IgA-IgG nephropathy: a clinicopathologic entity with slow evolution and favorable prognosis. 32 Aug 63

In five patients with chronic congestive heart failure or pulmonary insufficiency and otherwise unexplained weight loss synthesis rates of albumin and fibrinogen were studied with the 14C carbonate method described by Mc Farlane and Reeve. The following results were obtained. 1. Albumin synthesis rate was normal in 4 out of five patients. In one patient with proteinuria and low serum albumin it was markedly increased. 2. Fibrinogen synthesis rate was normal in three out of five patients. In two patients who had active inflammation just before or during the study it was increased. The results suggest, that in chronic congestive heart failure or pulmonary insufficiency the liver is able to maintain normal or even increased protein synthesis rates.
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PMID:Synthesis rates of albumin and fibrinogen in patients with cardiac and pulmonary cachexia. 85 27

The platelet count in 550 patients with gestational hypertension was significantly lower and the mean platelet volume significantly higher than in normal pregnant women. Both the platelet count and volume became increasingly abnormal when hypertension was accompanied by oedema, proteinuria or both, and women with severe pre-eclampsia or eclampsia had the lowest platelet counts and the highest mean platelet volume. The proportion of patients with thrombocytopenia and/or macrothrombocytosis also varied with the severity of the clinical presentation. Fibrinogen degradation products were found mainly in fully developed pre-eclampsia. These findings confirm the concept of a rapid platelet turnover caused by low-grade disseminated intravascular coagulation in gestational hypertension. The platelet pattern in essential hypertension is similar to that seen in normal pregnancy.
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PMID:Thrombocytopenia and macrothrombocytosis in gestational hypertension. 729 1

In glomerular disease the urinary excretion of fibrin degradation products (FDP) has prognostic value. In a prospective longitudinal study of 120 cases of idiopathic nephrotic syndrome the urinary FDPs have been measured. The results have been correlated to the proteinuria, plasma FDPs, the renal biopsy appearance, the response to steroid therapy and the outcome. During relapse in steroid sensitive or dependent nephrotic syndrome the urinary excretion of FDPs is low. In steroid resistant nephrotic syndrome with a poor prognosis there was a prolonged and raised excretion of FDPs (> 3 micrograms/ml) that preceeded the phase of progressive renal failure and corresponded to glomerular segmental hyalinisation. The significance of this finding is not clear. Fibrinogen is probably filtered in the glomerulus with subsequent fibrinolysis in the urine. This mechanism is proposed because of the inverse correlation between urine FDPs and the selectivity of the proteinuria, variable plasma FDP levels and only occasional deposition of fibrin in the glomerulus.
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PMID:[Urinary excretion of fibrin degradation products in children with nephrotic syndrome (author's transl)]. 746 95

Renal biopsy was performed in 31 cases of primary glomerulonephritis and the effect of Hirudo in these patients observed. The results revealed that proteinuria decreased significantly, serum albumin increased significantly and cholesterol, triglyceride reduced significantly 4 weeks after treatment with Hirudo (P < 0.01 or P < 0.05); Fibrinogen and platelet aggregation reduced significantly (P < 0.01). However, platelet count, partial thromboplastin time, bleeding and clotting time did not change (P > 0.05); urine NAGase decreased significantly (P < 0.01). It is concluded that Hirudo may decrease proteinuria and alleviate renal parenchymal damage.
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PMID:[The effect of hirudo on proteinuria, lipid metabolism and coagulation system in the patients with chronic glomerulonephritis]. 758 5

Two families with hereditary renal amyloidosis were found to have a novel mutation in the fibrinogen A alpha chain gene. This form of amyloidosis is an autosomal dominant condition characterized by proteinuria, hypertension, and subsequent azotemia. DNAs of patients with amyloidosis were screened for a polymorphism in fibrinogen A alpha chain gene by single-strand conformation polymorphism analysis, and affected individuals from two kindreds were found to have a mutation. Both of these kindreds are American of Irish descent presenting with non-neuropathic, nephropathic amyloidosis in the fifth to the seventh decade of life. DNA sequencing showed a point mutation in the fibrinogen A alpha chain gene that is responsible for substitution of valine for glutamic acid at position 526. By restriction fragment length polymorphism analysis, 7 affected individuals and 14 asymptomatic individuals in these two kindreds were positive for the fibrinogen A alpha chain Val 526 gene. Fibrinogen was isolated from plasma of a heterozygous gene carrier and shown to contain approximately 50% variant fibrinogen. Discovery of this new mutation confirms the association between fibrinogen A alpha chain variant and hereditary renal amyloidosis and establishes a new biochemical subtype of amyloidosis.
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PMID:Hereditary renal amyloidosis with a novel variant fibrinogen. 811 8

Fibrin/Fibrinogen degradation products (FDP) and cross-linked FDP (XLFDP) have been found in the urine of many patients with renal disease. FDP result from fibrinogenolysis and fibrinolysis. It is useful to detect the urinary XLFDP which results from fibrinolysis in order to diagnose intraglomerular coagulation. I investigated urinary FDP and XLFDP in patients with various renal diseases. Urinary FDP and XLFDP were detected by latex aggregation test in the urine of 96 patients. Urinary XLFDP was measured by enzyme-linked immunosorbent assay (ELISA) using monoclonal antibody in the urine of 140 patients. The positive rates of urinary XLFDP were higher in chronic renal failure, membranous nephropathy and membranous-proliferative glomerulonephritis than in other renal diseases. High levels of urinary XLFDP were found in membranous nephropathy, membranous proliferative glomerulonephritis and non-IgA nephropathy. There was an obvious relationship between urinary XLFDP and the degree of proteinuria, hematuria, serum creatinine and intraglomerular fibrin deposits. The high levels of urinary XLFDP were detected in the case of severe proteinuria, normal and mild hematuria, normal and slightly increased serum creatinine and mild intraglomerular fibrin deposits.
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PMID:[Urinary cross-linked FDP in various renal diseases]. 813 47

Disturbances in serum lipids, hemostasis and platelet functions are frequent features in some kidney diseases and may contribute to the progression of atherosclerosis with its complications. Recently, an attention has been paid on beneficial effects of fish oil on serum lipids and hemostasis, and proteinuria. The purpose of this work was to assess platelet functions, some hemostatic parameters and serum lipids in patients with chronic glomerulonephritis treated with Trienyl. The study was performed on 7 patients with glomerulonephritis, before, 3 and 6 months following fish oil treatment. A small and nonsignificant rise in cholesterol, HDL and LDL was found, whereas triglycerides level fell significantly following 3 and 6 months of therapy Fibrinogen concentration was lowered significantly 6 months following fish oil administration. Platelet aggregation in platelet-rich plasma remained unaltered during therapy, whereas platelet responses to ADP and arachidonic acid in the whole blood were inhibited after 6 months of the therapy. Unsaturated omega 3 fatty acids in Trienyl alter lipid metabolism, platelet/vessel wall interactions and proteinuria and therefore might be beneficial in therapy of glomerulonephritis, particularly in combination treatment.
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PMID:[Effect of treating glomerulonephritis with omega 3 fatty acids for selected parameters of hemostasis, blood platelet function and lipid metabolism]. 899 60

Nephrotic patients show various abnormalities in protein kinetics. Plasma albumin levels and the total plasma albumin pool are reduced. The rate of hepatic absolute and fractional albumin synthesis are increased. Transferrin synthesis is also increased. Fibrinogen levels are elevated in nephrotic syndrome because of an increase in the hepatic synthesis. Regulation of albumin and fibrinogen synthesis seems to be coordinated. A low protein diet has been proposed as a therapeutic tool in nephrotic patients--clinical studies have shown that such a diet reduces proteinuria and increases renal survival. Nephrotic patients can adapt to moderate protein restriction with no sign of malnutrition and maintenance of a neutral nitrogen balance. Albumin and fibrinogen synthesis are ameliorated by dietary protein restriction and these changes are correlated with the beneficial effect of the diet on proteinuria.
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PMID:Changes of protein kinetics in nephrotic patients. 1179 Sep 48

We examined whether plasma fibrinogen levels and the beta-fibrinogen gene G(-455)-->A polymorphism were related to microvascular or macrovascular disease in patients (n = 909) with type 1 diabetes enrolled in the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/ EDIC). Univariate regression showed that fibrinogen levels were correlated with BMI (r = 0.15; P < 0.0001), HbA(1c) (r = 0.11; P = 0.0014), total cholesterol (r = 0.17; P < 0.0001), and LDL cholesterol (r = 0.16; P < 0.0001) in all patients. In men, but not women, waist-to-hip ratio (r = 0.20; P < 0.0001) and triglycerides (r = 0.13; P = 0.0047) also became powerful predictors of fibrinogen level; in women, but not men, fibrinogen was correlated with both diastolic (r = 0.16; P = 0.0011) and systolic (r = 0.11; P = 0.0241) blood pressure. Fibrinogen was correlated with urinary albumin excretion rates in men (r = 0.13; P = 0.0033), but not in women. In both sexes, however, the development of proteinuria (albumin excretion >300 mg/24 h) was accompanied by 1.5-fold increment in plasma fibrinogen compared with patients with normal excretion or microalbuminuria. In addition, high fibrinogen levels were associated with a lower average ankle-brachial index in women (r = -0.13; P = 0.0075), but not men. Multiple regression analyses demonstrated that plasma fibrinogen was independently correlated with high albumin excretion rate in men, and with low average ankle-brachial index in women. Fibrinogen was not correlated with the severity of retinopathy. Carotid artery intima-medial thickness was not correlated with fibrinogen, and the G(-455)-->A polymorphism in the 5' promoter region of the beta-fibrinogen gene did not influence circulating fibrinogen levels. However, the presence of the more common G(-455) allele was associated with greater intima-medial thickness in the internal carotid artery (ANCOVA P = 0.045). Last, hyperfibrinogenemia in type 1 diabetes is associated with components of the insulin resistance syndrome trait cluster, and the association is influenced by sex.
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PMID:Fibrinogen is a marker for nephropathy and peripheral vascular disease in type 1 diabetes: studies of plasma fibrinogen and fibrinogen gene polymorphism in the DCCT/EDIC cohort. 1271 2


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