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PubMedDate not supplied

[Effect of radioprotectars from various chemical compound classes on dynamic work capacity and carbohydrate metabolism].

The influence of radioprotectors cystamine, mexamine and gammaphos on the physical performance capacity and carbohydrate metabolism was subjected to a comparative study. Cystamine and mexamine were found to lower the capacity of the animals to endure physical loads, this being attended by falling stocks of glycogen in the liver and muscles and a rising level of the blood lactate and pyruvate in comparison with controls. Gammaphos has no effect on the performance capacity of the animals and carbohydrate metabolism.

5-Methoxytryptamine↗
PubMed1978

[Protective effect of sodium hydroxybutyrate and mexamine on the body and cerebral cortex neurons during hypoxia].

Experiments on white non-pure male mice have established that NA oxybutirate in doses 100 mg/kg and mexamine in doses 2.5 mg/kg possess antihypoxic properties in conditions of severe hypoxia corresponding to a height of 10 000 m. In a combined introduction of Na oxybutirate and mexamine in the above-mentioned doses there is an increase of their antihypoxic action. It was demonstrated that Na oxybutirate, mexamine and their combination exposes a distinct protective effect on the cortical neurons on rats in conditions of hypoxia. It is assumed that the protective action of the studied antihypoxants on the cortical neurons is realized with the aid of the same mechanisms as in a physiological adaptation to hypoxia.

5-Methoxytryptamine↗
PubMedDate not supplied

[Effect of mexamine on arterial tonus in dogs].

The effect of mexamin (5 and 10 mg/kg) on the vascular tone of thoracic and abdominal cavity vessels and pelvic limbs was investigated by angiography in experiments on 19 mongrel dogs under nembutal anesthesia (30 mg/kg). 5-7 minutes after intramuscular administration of the drug there was a constriction of the aorta, of the hepatic, splenic, cranial mesenteric, internal and external iliac, branched femoral and tibial arteries by about 15-40% as compared to the initial diameter. Mexamin exerted no substantial vasoconstrictive action on the segmental (intercostal, lumbar, phrenoabdominal) and renal arteries.

5-Methoxytryptamine↗
PubMedDate not supplied

[Effectiveness of hypoxic hypoxia as a means of protecting the body from ionizing radiation exposure with the use of sodium oxybutyrate and mexamine].

While exerting a pronounced antihypoxic action on the body of white mice under nypoxic hypoxia, a combination of sodium hydroxybutyrate and mexamine given in comparatively low doses (100 and 2.5 mg/kg, respectively) did not remove the radioprotective effect of hypoxic hypoxia. In hemic and histotoxic hypoxia the drugs did not exhibit any antihy-oxic action.

5-Methoxytryptamine↗
PubMed1978

Time dependence of radioprotective effects of A. flavus conidia.

No essential difference in radioprotection results when conidia of A. flavus are applied to mice within a time lapse of a few minutes up to 48 hours prior to irradiation. When applied 72 hr before irradiation, they fail to affect mouse resistance. Application of conidia provide no protection to mice irradiated for 18-20 hr at the dose rate of 1 R/min; similarly ineffective are the chemoprotectors cistafos and mexamine. A combined administration of conidia and the two protective substances increases survival in mice and prolongs the mean survival period.

5-Methoxytryptamine↗