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Biomedical subjects

R Ahmad

Publications and source records attributed to R Ahmad.

At least 163 records · Page 9Linked to original sources
PubMed1980

Mechanism of leukocyte locomotion in hemophilia.

In order to study a relationship between leukocyte locomotion and hemophilia, three assays to investigate cell motility were performed: Investigations were carried out, firstly, on the leukocyte locomotion (LL), secondly, on the activability of sera by zymosan, and thirdly, on the influence of sera upon LL. 17 patients with hemophilia and 16 healthy control persons were included in the study. While LL of patients and controls did not differ significantly with either cytotaxin, zymosan activated serum of patients or controls, or casein, sera of patients were significantly less activatable (p< 0.0001) than control sera. Locomotion of control leukocytes was significantly inhibited (p<0.002) by sera of hemophiliacs.

Adolescent↗
PubMed1980

Hydrocarbon exposure and glomerulonephritis.

An occupational survey was completed on 87 patients with end-stage renal failure to determine their exposure to hydrocarbon based compounds. 59% of patients with renal failure due to glomerulonphritis had significant contact with hydrocarbons compared with 25% of patients with renal failure due to other causes (P < 0.01). 81% of patients with glomerulonephritis were male and of these 64% had significant hydrocarbon exposure compared with 35% of an age matched control group of male hospital in-patients with no renal pathology. Occupational exposure to hydrocarbons may account for the male predominance in patients with glomerulonephritis.

Adult↗
PubMed1979

Reusing dialysers.

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Costs and Cost Analysis↗
PubMed1977

The effect of dipyridamole on platelet function: correlation with blood levels in man.

1 The effect on platelet functions of dipyridamole (a pyrimido-pyrimidine compound) was compared with a control group of patients taking warfarin. 2 Adhesion, aggregation and platelet factor 4 availability showed a significant decrease in the dypyridamole group. 3 Aggregation and platelet factor 4 showed a significant correlation with blood dipyridamole level. 4 Adhesion, aggregation and platelet factor 4 were reduced below the lower limit of normal at blood dipyridamole levels above 3.5 micronmol/1.

Blood Platelets↗
PubMed1976

Chronic hemolysis following mitral valve replacement. A comparative study of the Björk-Shiley, composite-seat Starr-Edwards, and frame-mounted aortic homograft valves.

Hemolysis was assessed in 86 patients after mitral valve replacement. Twenty-four patients had mitral valve replacement with a Björk-Shiley valve, 32 patients with a Starr-Edwards composite-seat valve, and 30 patients with an irradiated frame-mounted aortic homograft valve. Hemolysis was determined by red cell survival and autologous 51Cr-tagged red cells, LDH, serum haptoglobin, hemosiderinuria, reticulocyte count, red cell fragment count, and hemoglobin estimation. The degree of hemolysis was classified as mild, moderate, or severe. Thirty-five per cent (nine of 24) of the Björk-Shiley group showed mild hemolysis, whereas 85 per cent (28 of 32) of the Starr-Edwards group had evidence of hemolysis-of these, a third were mild and the rest moderate. The homograft series did not show any comparable evidence of hemolysis. Statistical analysis of the parameters of the study comparing homograft with Björk-Shiley valves showed no significant difference except in red cell survival, which showed a highly significant difference (p less than 0.001). Comparing homograft with Starr-Edwards valves, all parameters showed highly significant differences (p less than 0.001).

Anemia, Hemolytic↗