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Biomedical subjects

M Nakano

Publications and source records attributed to M Nakano.

At least 937 records · Page 52Linked to original sources
PubMed1988

[A case of parathyroid carcinoma].

A case of parathyroid carcinoma in a 49-year-old female is described. She is found to have renal stones and high serum calcium levels. On physical examination a fixed walnut-sized mass was detected on her right neck. Laboratory studies disclosed a serum calcium level of 12.7 mg/dl, serum phosphorus level of 2.5 mg/dl, serum Ca++ level of 3.12 mEq/l, and positive Gold-Smith test. Computer-assisted tomography scan and ultrasonogram showed a mass in the posterior region of the right lobe of her thyroid. The tumor was resected and histopathological examination showed parathyroid carcinoma. The patient had no evidence of recurrence 2 years following surgery. Our report is the 70th case among Japanese literature.

Calcium↗
PubMed1988

[A case of a complete paraplegic fathering a girl following artificial insemination after an intrathecal neostigmine injection].

A case of a 32-year-old paraplegic male who fathered a girl following artificial insemination after an intrathecal neostigmine injection is described. The patient became a complete paraplegic after injury to the spinal cord caused by a traffic accident in 1971, resulting in ejaculatory disturbance. In June, 1984 the first intrathecal neostigmine injection was tried and 2.7 ml of semen was collected and offered to artificial insemination. However, the first to ninth attempt did not result in fertilization. The tenth attempt was made in March 7, 1986, and 3 ml of semen presenting 240 X 10(6) spermatozoa per ml with 5% of motile sperms was collected. This resulted in pregnancy, and the patient's wife delivered a healthy girl weighing 2552 g by cesarean section on November 19, 1986. This is the fourth case of a paraplegic who fathered a child following artificial insemination after an intrathecal neostigmine injection in the Japanese literature.

Adult↗
PubMed1988

[Male infertility with chromosomal abnormalities. III. 46, XYq-].

A deletion of the long arm of the Y chromosome (46,XYq-) was found in two cases with normal male habitus but with azoospermia. The first case was of a 28-year-old married man, an office worker, complaining of infertility. His height was 153 cm, weight 57 kg and distance of extended hand 152 cm. Both testes were 13 ml in size. The second case was a 32-year-old married man, a fireman, complaining of infertility. His height was 160 cm, weight 64 kg and distance of extended hand 161 cm. Both testes were 10 ml in size. In each case, the external genitalia showed a normal male type, but azoospermia was identified in semen analysis. The testicular biopsy specimens revealed spermatogenic arrest with thickening of basement membrane. Chromosomal analysis showed 46,XYq- karyotype. Basal serum levels of luteinizing hormone and follicle-stimulating hormone were slightly elevated and the serum testosterone level was within normal limits. Eight cases of 46,XYq- karyotype in the Japanese literature including our cases were reviewed.

Adult↗
PubMed1988

The basic study on kappa-lambda imaging by delta-curve for the detection of a monoclonal B-cell population in the peripheral blood.

Recently, kappa-lambda analysis with the "D" value was developed by Ault to detect a minor population of malignant B cells in peripheral blood. This analysis is based on the Kolmogorov-Smirnov test, and the D value is calculated by a flowcytometer and a computer. We have recently devised a more sensitive parameter for the kappa-lambda analysis than the D value called the delta-curve (delta c); the delta c applies the same principle as that of the D value. Mixing experiments with kappa-type and lambda-type chronic lymphocytic leukemia cells revealed that the delta c could not only detect a minor population of malignant kappa-B cells, but also that of malignant lambda-B cells using more sensitivity than the D value. A total of 49 blood samples obtained from 27 patients with various B-cell malignancies were investigated. D values were abnormal in 37% of all samples, while abnormal patterns of the delta c were recognized in 71%. On the other hand, 59% of samples obtained from the patients with B-cell lymphoma in aleukemic phase showed abnormal delta c, whereas D values exceeded the upper limit of the normal value in only 15% of the samples. It was suggested that the delta c could detect 3% to 7% of malignant B cells that were mixed with a population of normal lymphocytes.

B-Lymphocytes↗
PubMed1988

Modification of porcine zona pellucida with fluorescein isothiocyanate: evidence for the presence of a structural unit consisting of glycoproteins in the mammalian egg coat.

Intact porcine ova and mechanically isolated zonae pellucidae from the ova were treated with a limiting amount of FITC in isotonic solutions at different pHs. The modified zona proteins were fractionated into three families (FTC-PZP1-3) by HPLC on a gel filtration column. It was found by this HPLC that the amino groups of PZP3 hardly reacted with FITC, whereas those of PZP1 and 2 fairly reacted, reflecting the organization of these families in the zona structure. The difference in reactivity of the three families with FITC suggested the presence of a structural unit in the zona, thus supporting the filamentous model of Wassarman.

Animals↗