Differentiation of apical structures during spermiogenesis and fine structures of the spermatozoon in the ascidian Halocynthia roretzi.
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Biomedical subjects
Publications and source records attributed to M Kubo.
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Fourty-four Holstein Friesian cows diagnosed as having ovarian follicular cysts from rectal palpation of the ovaries and observation of estrous behavior were used for the present experiments. Of the 16 cows injected intramuscularly (i.m.) with 110 mg of depot-progestins containing 100 mg of 17alpha-hydroxyprogesterone caproate and 10 mg of progesterone in oil, 8 cows responded with conception with 103 +/- 53 days in average after the treatment. The 8 cows not responding to depot-progestins were injected i.m. with 6,000 MU of HCG on the 10th day after the treatment. As a result, 2 cows of them conceived within 72 days in average after the initial treatment. Of the other 16 cows injected i.m. with 100 mg of progesteron in oil, 3 cows conceived. Interval between the treatment and conception was 36 +/- 9 days in average. In the 11 cows which failed to respond to progesterone treatment, an intramuscular injection of 6,000 MU of HCG on the 5th day after treatment resulted in conception of 7 cows within 42 +/- 10 days in average after the first treatment. Of the remaining 12 cows which received an i.m. injection with 10,000 MU of HCG, 4 cows responded with conception with 64 +/- 51 days in average after treatment. No remarkable rise in serum progesterone levels was observed either 10 days after depot-progestins injection or 5 days after progesterone treatment. Serum progesteron levels increased distinctly after HCG injections. The combined treatment with 100 mg of progesterone and 6,000 MU of HCG at 5 days interval gave the most successful results and this treatment was effective even when performed long after calving. Thus this method of treatment of cystic ovarian disease may be recommended for practical application.
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In 1972, Neault and his co-workers reported seven cases of uveitis associated with intracranial reticulum cell sarcoma. Recently we have experienced a similar case for the first time in Japan. A 32-year-old woman registered on March 10, 1971, complaining of blurred vision in the left eye for about two weeks. By ophthalmic examination, left posterior uveitis was diagnosed but the etiology was unknown. Treatment with corticosteroids was begun, but her left eye continued to fail in spite of the treatment. In August, 1971, she complained of weakness of left arm and leg, and in October, she suffered from severe headache and vomiting. At that time, uveitis appeared in the right eye too. Neurological findings and carotid angiogram indicated a right cerebral lesion. On November 5, 1971, a right frontoparietal craniotomy was performed but no tumor was found. Since then her neurological and eye symptoms had been progressively worse. The patient died on July 12, 1972. Postmortem examination revealed the tumor infiltrating in the bilateral diencephalon, left internal capsule, left lenticular nucleus, left temporal lobe, midbrain, pons, left dentate nucleus, optic chiasma and intracranial portion of the optic nerves. But no tumor was found at any other parts of the body. Histologically the tumor was a reticulum cell sarcoma. The eyeballs were not examined histologically, but the uveitis in this case was thought to be closely related to the intracranial reticulum cell sarcoma. If the uveitis is resistant to the treatment, we must consider a possibility of reticulum cell sarcoma of the brain.
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