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Biomedical subjects

O Tanaka

Publications and source records attributed to O Tanaka.

At least 289 records · Page 16Linked to original sources
PubMed1984

Plasma cortisol levels in paediatric anaesthesia.

We measured plasma cortisol levels during surgery in seven neonates within ten days after birth and in 14 infants ranging in age from three months to 11 months. The 14 infants were divided into two groups; Group I included eight infants in whom general anaesthesia was maintained with oxygen, nitrous oxide and a muscle relaxant, Group II, six infants in whom general anaesthesia was maintained with oxygen, nitrous oxide, halothane and a muscle relaxant. In the neonates, the changes in mean plasma cortisol levels during anaesthesia were not statistically significant. In both Group I and Group II infants, the mean cortisol levels gradually rose during anaesthesia, but the initial rise in plasma cortisol levels was suppressed in the patients who received halothane.

Abdomen↗
PubMed1984

Inhibition of gamma-ray dose-rate effects by D2O and inhibitors of poly(ADP-ribose) synthetase in cultured mammalian L5178Y cells.

Effects of deuterium oxide (D2O) and 3-aminobenzamide, an inhibitor of poly(ADP-ribose) synthetase, on cell proliferation and survival were studied in cultured mammalian L5178Y cells under growing conditions and after acute and low-dose-rate irradiation at about 0.1 to 0.4 Gy/hr of gamma rays. Growth of irradiated and unirradiated cells was inhibited by 45% D2O but not by 3-aminobenzamide at 10 mM, except for treatments longer than 30 hr. The presence of these agents either alone or in combination during irradiation at low dose rates suppressed almost totally the decrease in cell killing due to the decrease in dose rate. The D2O did not inhibit the radiation-induced increase in poly(ADP-ribose) synthesis as measured by the incorporation of [14C]NAD into the acid insoluble fraction, contrary to 3-aminobenzamide. Among other inhibitors tested, theobromine and theophylline were found to be effective in eliminating the dose-rate effects of gamma rays. Possible mechanisms underlying the inhibition are discussed.

Animals↗
PubMed1984

The POEMS syndrome: report of three cases with radiographic abnormalities.

Three cases of a unique multisystemic syndrome with polyneuropathy, organomegaly, endocrinopathy, M protein, and skin changes (the POEMS syndrome) are presented, along with a review of the literature. Clinical and radiographic features of this syndrome and etiological considerations are discussed. A variety of osteosclerotic lesions, nonspecific pleural effusion and ascites are characteristic radiographic manifestations.

Adult↗
PubMed1984

[Multiple duodenal carcinomas associated with multiple gastric cancers].

Because of the rarity of primary duodenal cancer, the coexistence of this disease with gastric cancer is very rare. The case presented herein suffered from two carcinomas of the duodenum and six gastric cancers. The patient was 71-year-old man who underwent subtotal gastrectomy and pancreatoduodenectomy. Pathologic studies showed that all of the gastric and one of the duodenal cancers were limited to the mucosal layer and that the other duodenal tumor invaded to the pancreas. Several cases of double cancers in the duodenum and the stomach have been reported in Japan, and this is first of multiple carcinomas of the duodenum associated with multiple gastric cancers.

Adenocarcinoma↗