Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0034186 (pyelonephritis)
 6,144 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The results are discussed obtained from 198 patients with the two most frequently met kidney diseases--chronic glomerulonephritis and pyelonephritis, with a total of 396 renal clearance tests. In 65.7 per cent of the patients with chronic glomerulonephritis decreased values of blomerular filtration (GF) and the renal flow effect (RFE) were established, with a parallel decrease in both clearances in 56.5 per cent and isolated disturbances of GF in 31.9 per cent and of RFE in 11.6 per cent. In the patients with chronic pyelonephritis a parallel decrease of GF AND RFE was found in 66.7 per cent and isolated disturbances of GF in 13.6 per cent and RFE--in 19.7 per cent. The high percentage of parallelly decreased GF and RFE reveals the sensitivity of the method in the diagnosis of early renal functional alterations while the application of only one of the clearances might not detect the existing alterations. The results from the carried out comparative investigations between the isotope clearances and isotope nephrography with 131I--hippuran are also reportentage of the depuration radioisotope tests as compared with ING in the detection of early renal functional laterations. Radiation risk is rendered to a minimum with the use of the "cocktail" of 169U-EDTA and 125I-hippuran.
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PMID:[Clinical possibilities of a method for the simultaneous determination of the GFR and the ERBF using a "cocktail" of 169 EDTA and 125I-hippuran]. 82 56

Felodipine, a dihydropyridine calcium antagonist, was used to treat eight patients with severe uncontrolled hypertension: five had essential hypertension, two had renovascular disease, and one chronic pyelonephritis. Mean blood pressure (BP) was 221 +/- 14/120 +/- 4 mm Hg despite treatment with three or more antihypertensive drugs. All patients experienced an immediate and pronounced lowering of BP after adding felodipine, which persisted during long-term treatment in combination with previous medication except for vasodilating drugs. In all cases, an increase in glomerular filtration rate (51Cr-EDTA clearance) after 6 and 12 months of felodipine treatment was seen (59 +/- 10 to 63 +/- 7 and 70 +/- 6 ml/min, respectively, p less than 0.05). Renal plasma flow (PAH clearance) exhibited only a slight increase (315 +/- 68 to 340 +/- 63 and 314 +/- 69 ml/min), giving a nonsignificant rise in filtration fraction (18 +/- 1 to 21 +/- 1 and 20 +/- 1%, respectively). It is concluded that felodipine decreases BP dramatically in patients with previously refractory hypertension and that the drug causes an improved renal function in these patients.
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PMID:Long-term effects of felodipine on blood pressure and renal hemodynamics in severe hypertension. 169 10

40 patients with arterial hypertension II stage, 51 patients with chronic pyelonephritis and glomerulonephritis and a control group of IO healthy persons were examined during a free from medicamentous treatment period by a group of clearance tests in order to study the excretory system function and the degree of its affection in the earliest phases of the diseases studied. By means of the isotopic clearances of 169Yb-EDTA for determinations of the glomerular filtration, 131-I-hippuran for effective renal plasma circulation, the electrolytic clearances of Na, K, Ca, Cl and creatinine, the volume of the water excretion and the lithium clearance, the degree of the renal lesion was determined in every patient examined by the deviations from the normal values and the role of the different nephron sections as well. The results of the study revealed that the best tests for evaluation of the renal function in chronic renal diseases are the electrolyte clearances of Na, K, Ca, Cl, and in arterial hypertension--the lithium clearance.
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PMID:[A comparison of the diagnostic reliability of the results of isotopic and routine clearance studies in essential and symptomatic hypertension]. 313 28

An earlier and more manifested affect of glomerular function was established during the examination of 35 patients with diabetic nephropathy, 14 of them in a stage of renal insufficiency, with the help of radioisotope clearance methods (of EDTA, labelled with 169Yb for the determination of glomerular function and of hippuran, labelled with 131J for the determination of the renal plasma flow). The renal plasma flow is affected to a considerably more restricted extent. The combination of diabetic nephropathy with chronic pyelonephritis, found in 10 patients, does not affect substantially the mentioned functions of the kidney, but additional investigations were considered necessary in that field. Bilateral symmetric alterations are more frequently the secretory and excretory segmentsmthe establishment of unilateral alterations may speak of the presence of chronic pyelonephritis of uropathic character. The radioisotope methods, because of their accessibility and less possibilities for errors are recommended for renal functional investigations.
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PMID:[A study of renal function using radioisotope methods in patients with diabetic nephropathy]. 421 76

Infection-induced suppressor cells may be associated with a depression of cell-mediated immune (CMI) mechanisms in pyelonephritis. In the present study, cell viability and cell to cell contact were established as prerequisites for immunosuppression and the role of mononuclear phagocytic cells and polymorphonuclear leukocytes, as immunoregulatory cells affecting CMI, was also examined. Fractionation of spleen cell suspensions was carried out using carbonyl iron, nylon wool, glass beads, and sephadex. These procedures restored mitogenic responsiveness to splenic lymphocytes from pyelonephritic animals, and it was possible to isolate cells with accessory and suppressor activity from nylon wool columns. Elutable cells (that is, cells which adhere to the column but could be recovered by the addition of EDTA) were characteristically accessory cells and increased the mitogenic responsiveness of normal lymphocytes. Adherent splenocytes which suppress mitogenic responses were isolated from pyelonephritic animals. Additionally, neutrophils, at concentrations readily demonstrable in lesions, depressed CMI responses in vitro. With this information available it should now be possible to carry out a detailed analysis of the cellular mechanism by which CMI in renal infection is depressed.
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PMID:Infection-induced immunosuppression in pyelonephritis: characteristics of the suppressor cell(s). 622 63

Autoantibodies to the Tamm-Horsfall (TH) protein were analyzed in sera from 116 patients with pyelonephritis. The increases in antibody levels were limited in 23 patients with radiological detected renal damage during 31 attacks of acute pyelonephritis. 8 children with abnormally low total and/or unilateral 51Cr EDTA clearance had significantly lower IgG antibody levels to TH protein, than 14 children with normal clearance rate. All 61 children with renal damage had significantly low IgG, IgA and IgM antibody levels to TH protein 6 months after last infection as compared to the reference group. For IgG antibodies, the mean was well below -2 S.D. 12 children with increased serum creatinine had significantly lower IgG antibody levels than those with
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PMID:Autoantibodies to Tamm-Horsfall glycoprotein in children with renal damage associated with urinary tract infections. 721 55

Previous reports have demonstrated lesions on computerized axial tomography (CT), and nuclear scintigraphy (DMSA) in acute pyelonephritis (PN). We undertook a prospective study of all patients presenting to our hospital with PN over 40 months. Patients who fulfilled diagnostic criteria, were treated with intravenous antibiotics. Excluding two who were pregnant, all patients had imaging by intravenous urography (IVU), CT and DMSA during their admission. Urine samples were collected prior to treatment. Patients without IVU evidence of cortical scarring but with parenchymal defects on CT and/or DMSA underwent a repeat DMSA three or more months after the acute episode. Of the 164 patients, 142 were female. E. coli was found in 116 patients. Forty-six patients had an abnormality on IVU. Of the 106 patients without IVU evidence of cortical scarring, 59 had a defect on CT and/or DMSA. Late DMSA scans in 35 of these 59 patients showed a persistent abnormality in 77%. E. coli characteristics such as P-fimbriae and Type 1 fimbriae were not predictive of acute imaging abnormalities. Inhibition of E. coli growth by the addition of EDTA was highly predictive of acute CT and DMSA abnormalities with a sensitivity of 83.3% and a specificity of 82.8%. Acute pyelonephritis is often associated with acute CT and/or DMSA abnormalities which may evolve into renal cortical scars. Acute scan abnormalities can be predicted by the presence of E. coli which were susceptible to EDTA in culture. Late scarring could not be predicted by clinical features, response to treatment or antibiotic used.
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PMID:A prospective study of cortical scarring in acute febrile pyelonephritis in adults: clinical and bacteriological characteristics. 777 71

The main tool of radionuclide techniques applied to paediatric uro-nephrology is the quantitation of function, which is an information not easily obtained by other diagnostic modalities. The radiation burden is low. Drug sedation is only rarely needed, whatever the age of the patient. Accurate determination of glomerular filtration rate can be obtained by means of an intravenous injection of Cr-51 EDTA and one or two blood samples. Tc-99m DMSA scintigraphy is an accurate method for evaluation of regional cortical impairment during acute pyelonephritis and later on, for detection of permanent scarring. Tc-99m MAG3 renography is nowadays a well-standardized method for accurate estimation of the split renal function and of renal drainage with or without furosemide challenge. This technique is particularly indicated in uni- or bilateral uropathies with or without renal and/or ureteral dilatation. Direct and indirect radionuclide cystography are two alternative modalities for X-ray MCUG. Their relative place in the strategy of management of vesicoureteral reflux is discussed.
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PMID:Radionuclide studies in paediatric nephro-urology. 1212 12

We have sequenced a cDNA of calcium oxalate urinary stone protein extracted with EDTA. cDNA sequences showed complete homology between urinary stone protein and human osteopotine (OPN, bone sialoprotein 1). In this study, we investigated the expression of OPN mRNA in rat kidney serving as experimental models for several conditions that are considered to be risk factors in human renal stone formation. In the renal stone formation model, the expression of OPN mRNA in the distal convoluted tubule of the kidney was enhanced compared with the control which was found sporadically positive by in situ hybridization. By Northern blot analysis, the expression of OPN mRNA was increased in pyelonephritis and hydronephrosis models compared with the control, but no changes were observed in dietary-acid or base-loading models. The expression of OPN mRNA was markedly inhibited in the renal stone formation model by concomitant administration of estradiol and/or progesterone.
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PMID:Regulation of the expression of OPN mRNA in the rat as an experimental model of renal stone disease. 2444 51