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Biomedical subjects

A Russo

Publications and source records attributed to A Russo.

At least 721 records · Page 40Linked to original sources
PubMed1977

[Our experience in esophago-colonic plastic surgery for esophageal stenosis caused by caustics].

The Authors report their experience (16 cases) in esophago-colon plastic surgery for esophageal stenosis from caustics and emphasize the advantages presented by the colon as a substitute for the esophagus, as compared with the stomach and jejunum. Although the results were equally satisfactory irrespective of the selected segment of colon, the Authors indicate their present preference for the left colon because of some technical aspects making the operation easier and more reliable.

Adolescent↗
PubMed1976

Leukocyte function and characterization of leukocyte glucose-6-phosphate dehydrogenase in Sicilian mutants.

Nine Sicilian children known to be deficient in glucose-6-phosphate dehyrdrogenase (G6PD) were studied to see if there were anomalies of bactericidal activity in peripheral blood phagocytes. The type of deficiency was established. The G6PD levels in the leukocyte were found to be 26% of the controls (0.094 +/- 0.03, normal controls 0.360 +/- 0.12). The Michaelis constant for NADP and glucose-6-phosphate (G6P) was lower than the control. Conversely, the utilization of the analogous 2-deoxyglucose-6-phosphate (2dG6P) and galactose-6-phosphate (Ga16P) was higher. The thermostability of the enzyme in the deficient subjects was lower and the pH optima (8 and 9.5) were different from the controls. An identical electrophoretic pattern was found in both normal and deficient subjects. The bactericidal activity in the deficient subjects was normal. There was no difference in the results of nitroblue tetrazolium (NBT) tests in either group.

Blood Bactericidal Activity↗
PubMed1976

A new alkali-resistant hemoglobin alpha2J Oxford gammaF2 in a Sicilian baby girl with homozygous beta0 thalassemia.

A 10-mo-old baby girl with homozygous beta0 thalassemia and alphaJOxford, presenting the clinical picture of homozygous beta thalassemia is described. Hemoglobin electrophoresis showed three bands: the first two with the mobilities of hemoglobin Hb A2 (1%) and Hb F (69%), respectively, the third migrating a little faster than Hb A (30%). About 30% of her alpha chains were J Oxford which, bound to her gamma chains, produced a new alkali-resistant hemoglobin, alpha2 J Oxford gamma F2, which has not been described previously. Hemoglobin synthesis in vitro showed the absence of beta chain synthesis and an alpha/non-alpha ratio of 2. The patient's father was heterozygous for both the Hb J Oxford and beta0 thalassemia genes, the mother a carrier of beta0 thalassemia; four other relatives were carriers of Hb J Oxford, and one was a carrier of beta thalassemia.

Alkalies↗
PubMed1975

[Experimental and clinical studies on the use of a new suture material: polyglycolic acid].

Experimental and clinical investigation of polyglycolic acid, a new synthetic suture material, is reported. Experimental work was done on single-layer intestinal sutures, while clinical employment of the material was extended to various general surgery operations. There were few signs of inflammation at the site of implant, indicating that the new material has a greater degree of inertness than chronic catgut, restulting in optimal tolerance on the part of the body.

Animals↗
PubMed1975

Experimental studies on human health effects of air pollutants. II. Four-hour exposure to ozone alone and in combination with other pollutant gases.

Eight adult male volunteers were exposed to ozone (O3) alone and then in combination with nitrogen dioxide and carbon monoxide under conditions simulating ambient air pollution exposures. Four "normal" men showed few or no effects from repeated exposures. Four male volunteers with a history of "hyperreactive" airways, but with normal base line pulmonary function spirometric studies, after O3 exposure developed definite symptoms and decrement in pulmonary function.

Adult↗