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Biomedical subjects

Y Hamada

Publications and source records attributed to Y Hamada.

At least 559 records · Page 31Linked to original sources

Ascites production in 9 rat strains.

A simple inexpensive, and rapid method for inducing large volumes of ascitic fluid in rats is described. The procedure involves intraperitoneal injections of Freund's adjuvant emulsion on alternate days. Antibody activity of the ascitic fluid approximates that found in the serum. Female rats consistently respond better than males. Members of all 9 strains of rats tested produced ascites using this procedure.

Animals↗

Cardia lymph in electrical ventricular fibrillation: an experimental study.

The flow velocity of cardiac lymph during electrical ventricular fibrillation under normothermic cardiopulmonary bypass was studied experimentally in dogs. The time needed for the cardiac lymph node to become stained after injection of dye into the apex myocardium of the left ventricle was measured as an indicator in determining flow velocity of cardiac lymph. The flow velocity was markedly decelerated immediately after the commencement of electrical ventricular fibrillation. It was accelerated, however, after 2 hours of continuous electrical ventricular fibrillation. The difference between the two values was significant (p less than 0.01). Absent contractility of the heart influenced the deceleration of flow velocity of cardiac lymph immediately after the commencement of electrical ventricular fibrillation. Acceleration after 2 hours involved stasis of cardiac lymph as a result of absent contractility and increment of lymph production due to the nonphysiological condition of the myocardium.

Animals↗

[Sex difference and fine structure on epithelium cells of Bowman's capsule in mice (author's transl)].

Bowman's capsules with cuboidal epithelium were found in 87.2%, 95.5%, 75.4%, 96.7%, 98.8% and 91.2% in the kidney of adult male C57BL/6J-ob, JCL-ICR, dd, E1, ASK and KK mice, respectively, while in 57.9%, 6.7%, 7.0%, 2.8% and 9.1% in adult female C57BL/6J-ob, JCL-ICR, dd, E1 and ASK mice, respectively. The renal corpuscles with cuboidal epithelium in Bowman's capsules of male JCL-ICR mice increased gradually in number from 5 to 10 weeks age. The surface of cuboidal epithelium cells was shown to have long cilia and dense microvilli, which were similar to those seen in proximal uriniferous tubules.

Animals↗