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Biomedical subjects

J Oono

Publications and source records attributed to J Oono.

9 recordsLinked to original sources
PubMed1991

Thoracoabdominal aortic aneurysm associated with Marfan's syndrome--report of a case.

A case of Marfan's syndrome associated with thoracoabdominal aortic aneurysm and mitral regurgitation in a 29 year old male is reported herein. The aneurysm was replaced with a Y-shaped graft using Crawford's technique, while the major branches of the abdominal aorta were separately cannulated from inside the aneurysm and perfused via partial extracorporeal circulation using a left femoro-femoral bypass. We found this technique useful in the prevention of tissue ischemia during the operation. The patient's postoperative course was uneventful and he has encountered no problems in the year and half since his operation.

Adult↗
PubMed1991

[201Tl-reverse redistribution in a case with stunned myocardium].

A 58-year-old man was admitted to our hospital because of chest pain. Electrocardiogram showed giant negative T waves in leads I, II, III, aVl, aVf and V2 through V6. Echocardiogram showed anterior wall motion abnormality. Rest-redistribution thallium scan obtained 3 days after admission revealed reverse redistribution in antero-apical area. Coronary angiogram showed no significant stenotic lesions and left ventriculogram in chronic stage showed improvement of wall motion abnormality. Repeat thallium scan in chronic stage showed disappearance of perfusion defect in apical area. It was difficult to diagnose myocardial viability in our case with stunned myocardium because rest-redistribution thallium scan showed reverse redistribution. As the mechanism of this finding, early coronary recanalization in acute stage of the event was suspected.

Coronary Disease↗
PubMed1987

Pyrroxamycin, a new antibiotic taxonomy, fermentation, isolation, structure determination and biological properties.

A strain of streptomycete was found to produce a new antibiotic pyrroxamycin. This compound was isolated from the culture broth of Streptomyces sp. S46506. The chemical structure was determined to be 4,5-dichloro-2-(6',8'-dichloro-4'H-1',3'-benzodioxin-4'-yl)-3-nitr opyrrole by its chemical character and 1H and 13C NMR spectral analysis. Pyrroxamycin was active against Gram-positive bacteria and dermatophytes.

Anti-Bacterial Agents↗
PubMed1986

Actinopyrones A, B and C, new physiologically active substances. I. Producing organism, fermentation, isolation and biological properties.

A strain of Streptomyces was found to produce new physiologically active substances. The active compounds were purified and separated into three substances named actinopyrones A, B and C. Actinopyrones exhibited coronary vasodilating activities in anesthetized dogs and weakly antimicrobial activities against some Gram-positive bacteria and dermatophytes.

Animals↗