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  • 1985-1989  (3)
  • Alpha-1-microglobulin  (1)
  • Diabetische Nephropathie  (1)
  • Hirsutism  (1)
  • Nitrate (as inductor)
  • Pathogenesis
  • Renal insufficiency
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 66 (1988), S. 892-898 
    ISSN: 1432-1440
    Keywords: Diabetic nephropathy ; Urine analysis ; Albumin ; Single proteins ; α-1-microglobulin ; SDS-PAGE ; Diabetische Nephropathie ; Harnanalyse ; Albumin ; Einzelproteine ; α-1-Mikroglobulin ; SDS-PAGE
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zahlreiche Untersuchungen haben in den vergangenen 10 Jahren belegt, daß die Quantifizierung von Albumin im Urin zur frühzeitigen Diagnose der diabetischen Nephropathie geeignet ist. Dabei wurde die Albuminbestimmung aufgrund ihrer hohen Treffsicherheit bei geringem methodischen Aufwand in den Vordergrund gehoben. Die parallele Untersuchung des Harnproteinspektrums mittels SDS-Polyacrylamidgelektrophorese zeigt jedoch, daß auch andere hoch- und niedermolekulare Proteine in den verschiedenen Stadien der diabetischen Nephropathie vermehrt ausgeschieden werden, so daß eine Erweiterung der reinen Albuminbestimmung um je ein makromolekulares (z.B. Transferrin) und ein mikromolekulares (z.B. α-1-Mikroglobulin) Protein sinnvoll erscheint. Nach der vorliegenden Untersuchung können beide Verfahren (kombinierte quantitative bzw. qualitative Analyse) in der Frühdiagnostik und der Verlaufskontrolle der diabetischen Nephropathie eingesetzt werden.
    Notes: Summary During the last ten years, several studies proved the applicability of urinary albumin quantification in the early diagnosis of diabetic nephropathy. Owing to its high accuracy and its comparable low methodological effort, only the albumin determination was emphasised. Parallel studies of urinary protein patterns, however, using sodium dodecylsulfate-polyacrylamidegel-electrophoresis demonstrated the increased excretion of other high- and low-molecular mass proteins in different stages of diabetic nephropathy. Consequently an extension of the mere albumin assay including a macromolecular (e.g., transferrin) and a micromolecular (e.g. α-1-microglobulin) protein seems meaningful. According to this study, both methodological lines (combined quantitative and qualitative analysis, respectively) are useful tools in the early detection and the follow up of diabetic nephropathy.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 67 (1989), S. 707-712 
    ISSN: 1432-1440
    Keywords: Ketoconazole ; Androgens ; Inhibition of adrenal androgen secretion ; Hirsutism ; Hyperandrogenism therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of ketoconazole on adrenal androgen secretion was examined in 15 patients with elevated serum androgens. In a dose of 600 mg per day orally ketoconazole inhibited the biosynthesis of all measured androgens. The mean reduction in serum levels of dehydroepiandrosterone sulfate was 32%, of dehydroepiandrosterone 54%, of androstenedione 52%, and of testosterone 43%; mean serum levels of cortisol only fell by 19%. The reduction in serum androgen levels was first significant 24 h after beginning of treatment and persisted as long as the drug was administered. We conclude that ketoconazole inhibits adrenal androgen biosynthesis more pronouncedly than cortisol biosynthesis. This might be of clinical benefit in the treatment of hirsutism and other states of androgen hypersecretion.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 63 (1985), S. 711-717 
    ISSN: 1432-1440
    Keywords: Alpha-1-microglobulin ; Beta-2-microglobulin ; Proteinuria ; Renal insufficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Alpha-1-microglobulin (alpha-1-m) is a low molecular weight glycoprotein (mw 25–33 KD) that is filtered through the glomeruli and reabsorbed in the proximal parts of the renal tubules where it is catabolized. Normal ranges were established for alpha-1-m (100 healthy controls) in serum (20–42 mg/l) and urine (3.5–8 mg/l). Alpha-1-m was then measured in 341 urine samples whose protein pattern had been classified as “pathologic” and “normal” according to microelectrophoresis. Increased alpha-1-m concentrations were found in 266 out of 280 pathologic urines (5% false negative) and in 3 out of 61 normal urines (4% false positive). Beta-2-microglobulin (beta-2-m), total protein or protein test strips showed a poorer correlation to the electrophoretic results. Measurement of alpha-1-m is, therefore, the most sensitive of these methods for the detection of proteinuria. In 90 patients with low molecular weight proteinuria and either with or without renal insufficiency alpha-1-m concentrations were determined in both urine and serum. While all patients had elevated urinary alpha-1-m concentrations, increased serum values were only found in renal insufficiency (Ccrea〈100 ml/min). Independently of these results, we were also able to establish that increased alpha-1-m levels are found at decreased glomerular filtration rates (Ccrea 〈70 ml/min). Pathologic alpha-1-m concentrations therefore only allow the conclusion of isolated tubular impairment when the GFR is greater than 70 ml/min. Data from 350 patients with various renal and hypertensive diseases showed that serum alpha-1-m is a more sensitive indicator of renal insufficiency, even in the so-called “creatinine blind” range (60–100 ml/min) of the GFR than either creatinine or beta-2-m.
    Type of Medium: Electronic Resource
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