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Biomedical subjects

H Hama

Publications and source records attributed to H Hama.

At least 127 records · Page 7Linked to original sources
PubMed1977

Immune complexes in diabetes insipidus syndrome of rabbits immunized with vasopressin.

Rabbits immunized with lysine-vasopressin bovine serum albumin conjugate showed the diabetes insipidus syndrome intermittently manifested by polyuria and polydipsia with various degrees of peaking from the eighth to fourteenth day post injection during boosters. The antibody-antidiuretic hormone immune complexes which may interfere with the action of the endogenous vasopressin on the kidney were found in the diabetes insipidus rabbits. However, the degree of the polyuria was not necessarily related to the quantities of the formed immune complexes, the titer, nor the affinity of the antiserum. It is suggested that the degree of the polyuria is related not only to the binding ability of the antiserum to the endogeneous vasopressin, but also to other factors.

Animals↗
PubMed1976

Experimental studies on connective tissue of the capsular ligament. Influences of aging and sex hormones.

Influences of aging and sex hormones on connective tissue metabolism in the hip joint capsule of Wistar rats were analyzed both biochemically and morphologically. As age advanced, collagen content and collagen fibril diameter of the hip joint capsule tended to increase gradually in both sexes until sexual maturation was reached. Collagen content was significantly greater in males than in females after sexual maturation. The collagen content and fibril diameter were considerably increased by ovariectomy and significantly decreased by the administration of estrogen, or estrogen combined with progesterone, whereas they were significantly increased by the administration of testosterone in orchiectomized male rats.

Aging↗