[Studies on the land leech, Mesobdella sp. found in the nostril of a man. 1. 1. Ecological observations].
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Ecology↗
Biomedical subjects
A Higashi
Publications and source records attributed to A Higashi.
[Study on 11 cases of giant-cell tumor occurring in the tendon sheath of the fingers].
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Adolescent↗
Recurrences after the open Bankart repair: a potential risk with use of suture anchors.
Eighty-seven consecutive patients were treated with an open Bankart repair for traumatic, recurrent anterior instability of the shoulder. Forty-six of these patients underwent a transosseous suture technique. Forty-one patients were operated on with suture anchors. After follow-ups that ranged from 18 to 85 months, 7 of the 87 patients showed signs of recurrence and another 14 patients reported apprehension. Compared with the 66 patients without residual instability, these 21 patients were more likely to have been operated on with suture anchors (P < .05), had a greater incidence of hypermobility in joints other than the shoulder (P < .05), and had had a greater number of preoperative episodes (P < .05). In light of this data we recommend the transosseous suture technique for open Bankart repairs. In addition, a cautious and extensive capsular repair may be required when a patient reports frequent subluxations preoperatively or has hypermobility in some joints, if not in the shoulder per se.
Adolescent↗
Conversion of thyroxine into tri-iodothyronine in zinc deficient rat liver.
Hepatic thyroxine (T4) to tri-iodothyronine (T3) conversion was measured in six animal groups: Group A was fed a severe zinc-deficient diet (1.98 ppm) for 5 weeks; group B was a pair-fed control group for group A; group C was fed a less severe zinc-deficient diet (6.10 ppm) for 5 weeks; group D was a pair-fed control group for group C; group E was fed a zinc-supplemented control diet (90.4 ppm) for 5 weeks; and group F was first fed the severe zinc-deficient diet for 5 weeks and then placed on the zinc-supplemented control diet until a body weight corresponding to the final weight of group E was obtained. Serum T3 and T4 levels and T4 to T3 conversion were significantly reduced in group A. A significant positive correlation was observed between T4 to T3 conversion and alcohol dehydrogenase (zinc-metalloenzyme) activity in liver tissue from the six groups. Thus, it appeared that an appropriate amount of zinc might be one of the factors in thyroxine to tri-iodothyronine conversion in liver tissue normally.
Alcohol Dehydrogenase↗
A prospective survey of serial maternal serum zinc levels and pregnancy outcome.
Serum zinc levels were monitored serially in pregnant women. Compared with those of age-matched nonpregnant women, their serum zinc levels were significantly decreased in the first trimester (p less than 0.005) and further decreased in the second trimester (p less than 0.005) but then remained unchanged until delivery. Cord blood zinc levels and the ratio of cord blood to maternal serum zinc at delivery were significantly higher in preterm than term (greater than or equal to 37 weeks) infants (p less than 0.05, p less than 0.05). The maternal serum zinc level in the second trimester was not related to the birth weights of the infants. Mothers with serum zinc levels of less than 65 micrograms/dl in the last trimester showed a higher incidence of birth weights of less than the 50th percentile (p less than 0.005) and also of less than the 25th percentile (p less than 0.005) on term delivery. The incidences of birth weights of less than the 10th percentile on term delivery were similar for mothers with serum zinc levels of greater than or equal to 65 micrograms/dl. This observation suggested that a relatively lower birth weight may be associated with lower maternal serum zinc levels in the third trimester, but an additional factor (factors) is also involved in the outcome of low birth weight infants.
Birth Weight↗
Nutritional copper deficiency in severely handicapped patients on a low copper enteral diet for a prolonged period: estimation of the required dose of dietary copper.
Six cases of nutritional copper deficiency were identified in a nursery institute for severely handicapped patients. All had been on prolonged enteral feeding of a copper-deficient diet and all had abnormalities related to the copper deficiency. Two of them had leukopenia, with or without macrocytic and normochromic anemia. After the oral administration of copper, the clinical and laboratory observations including neutrophil counts and serum copper and ceruloplasmin levels showed a complete recovery. The dietary copper requirement was estimated to be approximately 20 micrograms/kg/day for these patients, based on the correlation between the dietary copper intake and the levels of copper in the serum.
Adolescent↗
Zinc absorption and its correlation with results of oral zinc tolerance testing in nonalcoholic liver cirrhosis; kinetic study.
BACKGROUND/AIMS: Liver cirrhosis is often complicated by symptoms of zinc deficiency, i.e., disturbances of taste and smell, skin eruptions, and other symptoms. We evaluated zinc absorption in patients with nonalcoholic liver cirrhosis to clarify the cause of zinc deficiency. METHODS AND MATERIALS: The absorption of zinc was calculated from the results of both the oral and intravenous zinc loading tests. RESULTS: Absorption was significantly reduced the cirrhotic patients, 20.4 +/- 10.7% as compared with the controls, 38.3 +/- 11.0%. In the cirrhotic patients with hepatocellular carcinoma, it was 17.8 +/- 9.3%, not significantly different from that of cirrhotics without hepatocellular carcinoma, 24.1 +/- 10.7%. CONCLUSIONS: Therefore, the development of hepatocellular carcinoma in patients with nonalcoholic liver cirrhosis had no influence on zinc absorption. Because a lower correlation between zinc absorption and the results of oral zinc tolerance testing was observed, the oral zinc tolerance test alone cannot be used as an accurate procedure for evaluating zinc absorption in liver cirrhosis. One should thus use both the intravenous as well as the oral zinc loading test when evaluating zinc absorption.
Absorption↗