Modification of radiosensitivity by the so-called tissue recovery stimulator. I. Radiosensitizing effects of solcoseryl. (1/4)

The effect of solcoseryl on the growth, radiosensitization and ability of V79 cells to recover from X-ray-induced damage has been observed. Solcoseryl at 0.8 mg/ml was the optimal concentration for the stimulation of cell growth. Increased sensitivity to X-irradiation was found in the shoulder region of V79 cells treated before and after irradiation with solcoseryl (0.8 mg/ml). The Dq and extrapolation number (n) decreased. Solcoseryl treatment apparently does not reduce split dose recovery or inhibit the repair of potentially lethal damage. Flow cytofluorometry studies of the cell cycle distribution and mitotic index show that solcoseryl inhibits the expression of radiation-induced cell arrest in the G2 phase of the cell cycle. Although this action increases radiation sensitization, additional mechanisms probably exist.  (+info)

Stimulation of oxygen consumption of platelets by Solcoseryl and cardiocrome during in vitro aging for 5 days. (2/4)

Solcoseryl (SOL) and Cardiocrome (CAR) produced decreases in the partial oxygen pressure of platelet suspensions, indicating the acceleration of platelet oxygen consumption. However, the peak response to CAR was much faster than that to SOL. Application of 1 ml of SOL to 20 ml of platelet suspension stored for 1 day produced increases of 1 nmol ATP per min per 10(9) platelets. The same increases in oxygen consumption appeared after 3 or 5 day-storage.  (+info)

Effect of elcatonin on experimental gastric and duodenal ulcers. (3/4)

The antiulcer action of elcatonin, an analogue of natural eel calcitonin, was compared with that of cimetidine, secretin and solcoseryl. Elcatonin (3 to 10 mu/kg, s.c.) inhibited the development of gastric ulcers induced by pylorus ligation, water-immersion stress, aspirin and reserpine and duodenal ulcers induced by cysteamine in rats. Moreover, once daily injections of elcatonin (1 to 10 mu/kg/day, s.c.) promoted the healing of acetic acid-induced chronic gastric ulcers not only in rats but in dogs. The healing effect persisted after the cessation of administrations. Cimetidine (30 to 100 mg/kg, p.o.) inhibited the development of gastric ulcers induced by water-immersion stress, aspirin and reserpine and duodenal ulcers induced by cysteamine in rats. However, once daily administrations of cimetidine (30 to 100 mg/kg/day, p.o.) did not show significant effect on acetic acid-induced chronic gastric ulcers in rats. Secretin (30 to 100 mu/kg, s.c.) inhibited the development of gastric ulcers induced by pylorus ligation, water-immersion stress, aspirin and reserpine in rats, but was not effective on cysteamine-induced duodenal ulcers and acetic acid-induced chronic gastric ulcers in rats. Solcoseryl (2 ml/kg, s.c.) inhibited only the development of water-immersion stress-induced gastric ulcers in rats. These results suggest that elcatonin is different from these reference drugs in its properties of action on experimental ulcers. Mechanisms of the antiulcer action of elcatonin which has a superior effect on experimental ulcers are discussed.  (+info)

Effect of a deproteinized blood extract on the recovery of blood circulation in an ischaemic skin lesion. (4/4)

An experimental model was used to study the revascularization of an ischaemic skin lesion and the effect on this process of the blood extract Solcoseryl. Under the conditions given in the experiment, restoration of the circulation was by 2 modes--re-flow in the original vessels, and neovascularization. Solcoseryl given daily i.p. encouraged the re-flow phenomenon and therefore, by improving the microcirculation and nutrition, the healing of the ischaemic lesions.  (+info)