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Biomedical subjects

G Göransson

Publications and source records attributed to G Göransson.

34 records · Page 2Linked to original sources

Effect of acute and chronic ethanol intake on metastasis formation in rat liver.

The effect of acute ethanol intoxication and prolonged intake of ethanol on metastasis formation in the liver was studied in the rat. The tumour cells used were derived from a pharmacologically induced colon carcinoma (NGW 1) and were injected intraportally. Acute ethanol intoxication at the time of injection was associated with a liver weight of 13.29 +/- 0.89 gm two weeks later, compared to 8.43 +/- 0.51 gm in controls. Daily intake of ethanol for eight weeks resulted in a mild reduction of platelets. The liver weight in two groups was 7.31 +/- 0.50 gm and 12.19 +/- 1.40 gm three weeks after intraportal injection of cancer cells as compared to 9.53 +/- 1.11 gm and 19.63 +/- 1.67 gm in controls. The results indirectly supported the hypothesis that acute ethanol intoxication causes increased platelet activity and confirmed earlier results showing the importance of platelets for metastasis formation.

Alcoholic Intoxication↗

Ethanol-induced microaggregate formation in pig and rabbit blood. An in vitro study.

Increased microaggregate formation was found after mixing ethanol with blood from pig and rabbit in vitro, measured with Swank's Screen Filtration pressure method. Final ethanol concentrations were in the range found in ethanol-intoxication in man. No rise in SFP was noticed when plasma with 10,000 platelets/microliter was used. It is therefore doubtful that altered plasma proteins caused the rise in SFP. It is suggested that if a direct effect of ethanol upon platelet aggregation exists in vivo, it may be of importance in acute ethanol intoxication and in chronic alcoholism.

Alcoholic Intoxication↗

Influence of physiological saline, dextran 70, hydroxyethyl starch, degraded gelatin, and fat emulsion solutions on screen filtration pressure.

The effect of 0.9% NaCl solution, dextran 70, hydroxyethyl starch, degraded gelatin and fat emulsion on Hb, Hct, platelet count and screen filtration pressure has been studied in the rabbit. Dextran 70, hydroxyethyl starch and degraded gelatin caused hemodilution and decreased platelet count. Screen filtration pressure increased after infusion of degraded gelatin and tended to decrease after dextran 70 and hydroxyethyl starch. 0.9% NaCl and fat emulsion caused less pronounced changes. Intraportal infusion of 7 ml/kg body weight of the same solutions gave results which at present are difficult to interpret.

Animals↗

Acute portal hypertension after gastric administration of ethanol in the pig.

A single gastric administration of 15 ml/kg of 40% ethanol to anesthetized pigs resulted in an increased portal venous blood pressure which increased with increasing blood alcohol levels. For the first 2 h there was no significant alteration in liver blood flow, but 3 h after the administration of ethanol, when portal blood pressure reached its highest values, liver blood flow had decreased. This was probably caused by increased hepatic vascular resistance as shown in electron thin-section phase-contrast microscopy which at this time showed marked hepatocyte swelling, narrowing of the sinusoids and platelet aggregates in small portal branches.

Acute Disease↗