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Biomedical subjects

A Durrbach

Publications and source records attributed to A Durrbach.

25 records · Page 2Linked to original sources
PubMed1993

[Nephropathies and HIV virus infection. Anatamo-clinical study].

We report 16 patients with HIV1 infection with biopsy-proven renal involvement. Nine patients were caucasians and seven were blacks. There were 11 patients at stage II and 5 at stage IV of the HIV1 infection. Three patterns of histologic lesions were found: 6 patients, all blacks, with nephrotic syndrome and/or renal insufficiency had focal and segmental glomerulosclerosis (FSGS) with tubulo-interstitial lesions. In contrast, 6 patients, all caucasians, had various types of glomerulonephritis characterized by immunoglobulin and complement deposits; 3 of them were membranoproliferative glomerulonephritis (MPGN). The four remaining patients had predominant tubulointerstitial lesions. In three patients who had FSGS, treatment by AZT induced temporary improvement of renal function and hemodialysis could be interrupted for a few months. The cure of infectious foci was followed by improvement in renal signs in two out of the 3 MPGN patients. Our study further underlines: 1) the importance of genetic/racial factors in the occurrence of HIV1-associated glomerular lesions and 2) the relatively frequent occurrence of MPGN related to bacterial infections in caucasian patients.

Adult↗
PubMed1992

Do unconventional myosins exert functions in dynamics of membrane compartments?

Unconventional myosins have now been identified in amoeba as well as in higher eucaryotic cells. Their cellular localization, their ability to bind membrane vesicles and their ability to produce in vitro movement suggest that they can generate forces on the plasma membrane relative to actin filaments as well as on membrane compartments relative to actin. Genetic approaches and biochemical analysis of cells over-producing nonfunctional domains of unconventional myosins have provided direct evidence for a role of unconventional myosins in movement of intracellular vesicles and have allowed us to formulate hypotheses about the possible mechanisms by which unconventional myosins could participate in the intracellular transport of membrane proteins and secretory proteins.

Animals↗
PubMed1987

[Can the protein concentration of the ascitic fluid in ascites predict the occurrence of an infection?].

In cirrhotic patients, spontaneous bacterial peritonitis is frequent and severe. This study was performed to determine if low protein concentration in ascitic fluid on admission could predict the occurrence of spontaneous bacterial peritonitis during hospitalization. Ninety-two cirrhotic patients with ascites, without spontaneous bacterial peritonitis were studied. Bacteriologic study and cultures of ascitic fluid were performed on admission and repeated every 5 days, and if any suspicion of infection occurred; 11 patients developed spontaneous bacterial peritonitis during hospitalization. Among the 92 patients in the study, protein concentration in ascitic fluid was initially less than 10 g/l in 45 and 10 of these 45 patients (22 p. 100) developed spontaneous bacterial peritonitis during hospitalization; protein concentration in ascitic fluid was initially greater than 10 g/l in 47 patients; only one of these 47 patients (2.1 p. 100) developed spontaneous bacterial peritonitis during hospitalization. This difference (22 p. 100 vs 2.1 p. 100) was significant (p less than 0.01). Ascitic fluid protein concentration (6.9 +/- 2.3 g/l) was significantly lower (p less than 0.01) in the spontaneous bacterial peritonitis group than in patients without peritonitis (13.8 +/- 10.5 g/l). These results suggest that: 1) ascitic fluid protein concentration on admission is lower in patients who will develop spontaneous bacterial peritonitis during hospitalization than in patients without infection and 2) patients with ascitic fluid protein concentration under 10 g/l on admission represent an high risk group for spontaneous bacterial peritonitis.

Ascitic Fluid↗