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Biomedical subjects

M Tsuchiya

Publications and source records attributed to M Tsuchiya.

At least 613 records · Page 34Linked to original sources

Study on the fixation method of microcirculation system for electron microscopy.

1) Although glutaraldehyde solution was injected into the superior mesenteric artery, vessels and blood cells were not fixed immediately. 2) Glutaraldehyde was considered not to be suitable for the fixation of vessels and blood cells. 3) To observe the physiological and topographical correlation of vessels and blood contents, drop osmium fixation method was better to fix the microcirculatory units immediately. 4) The perfusion of glutaraldehyde was supposed to be necessary for the fixation of the solid tissue in which microcirculatory systems exist in deeper places like liver. However, the findings observed by the perfusion method might reflex microcirculatory disturbances occured by the perfusion of glutaraldehyde itself.

Animals↗

Existence of serum HBe antigen and expression of liver HB surface and core antigens in hepatitis type B patients.

A study of 52 liver biopsies (47 hepatitis type B and 5 asymptomatic carriers) was performed to clarify the roles of HBe antigen (HBeAg), HB surface antigen (HBsAg) and HB core antigen (HBcAg). In this study, the Gudat classification was modified so as to classify the patterns of HB antigens into six reaction types including: type O (negative for both liver HBsAg and liver HBcAg), type III-A (characterized by a spotty HBsAg pattern) and type III-B (characterized from a sub-lobular to lobular HBsAg localization pattern). This classification enabled accurate prediction of the prognosis of hepatitis. Patients with positive serum HBeAg had either minimal hepatitis with mild clinical features or chronic aggressive hepatitis with severe clinical features. Ten patients negative for both HBeAg and HBeAb were all positive for liver HBcAg. In all 3 patients on corticosteroid administrations liver tissue was markedly positive for HBcAg and serum was usually positive for HBeAb.

Adolescent↗

Therapeutic effect of histidine decarboxylase inhibitor on chronic active hepatitis.

The effect of orally administered histidine decarboxylase inhibitor on liver function tests and histological appearance as well as on plasma histamine level were evaluated in biopsy proven 13 patients with chronic active hepatitis, whose liver function tests were refractory to other measures. Tritoqualine was used as histidine decarboxylase inhibitor and was administered in dose levels of 600 to 1,600 mg per day. Before treatment the average value of SGOT, SGPT and plasma histamine showed 252 +/- 24U, 318 +/- 152U and 15.2 +/- 5.5 microgram/L, respectively. Results obtained at six weeks' treatment, however, gave significantly improved values, indicating SGOP 57 +/- 24 (p less than 0.001), SGOP 40 +/- 28 (p less than 0.001) and plasma histamine 8.6 +/- 0.4 (p less than 0.001). Serum gammaglobulin also tended to fall (p less than 0.1). Marked improvement was noted in reexamined biopsied specimen, representing disappearance of fibrogenesis as well as round cell infiltration in and around the portal tract, together with pericellular fibrosis. Four cases have been proven to be healed. Despite long-term administration, no obvious side effect was observed. Investigation for HBsAg revealed to be positive in 4, however, no conspicuous difference was seen from that of negative cases in the improvement.

Adult↗