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Biomedical subjects

J Y Chu

Publications and source records attributed to J Y Chu.

At least 73 records · Page 4Linked to original sources
PubMed1979

Integumentary loss of calcium.

Integumentary calcium loss was studied in 16 healthy young men. The daily loss by the 16 ambulatory but relatively sedentary young men in 52 determinations of 6-day periods each was 8.7 +/- 1.9 mg/m2 per day (average 15.8 mg/man per day). The amount lost was not influenced by calcium intake (0.1 to 2.3 g/day). In contrast to urinary calcium excretion, which is directly related to protein intake, there was no significant change in integumentary calcium loss with varying protein intakes (1 to 96 g nitrogen per day). No compensatory relationship between urinary and integumentary calcium excretion was noted. During strenuous exercise calcium loss increased to an average of 25 mg in 40 min. There was no compensatory decrease in urinary excretion on the day of strenuous exercise. It was also noted that integumentary calcium loss was not affected by general calcium balance.

Adult↗
PubMed1979

Technetium colloid bone marrow imaging in Fanconi's anemia.

Four patients with Fanconi's anemia were evaluated with 99mTc-sulfur colloid bone marrow scans. The scans revealed similar paradoxical and irregular tracer distribution in all four patients. Normal to increased activity was demonstrated in the proximal metaphyses of the humeri with varying degrees of increased activity in more primitive marrow sites in the distal diaphyses of the humeri and tibia, the distal metaphyses of the humeri and femora, and the proximal metaphyses of the ulnae, radii, and tibia. Skip areas of normal distribution were seen in the proximal diaphyses of the humeri and femora. Although the scan reflects only the reticuloendothelial portion of bone marrow, it may be of some value in the differential diagnosis of pancytopenia.

Abnormalities, Multiple↗
PubMed1978

Childhood embryonal carcinoma of testis, report of two unusual cases, and the implication on clinical management.

Primary testicular neoplasms are not common childhood tumors, comprising about 1% of all childhood malignancies [1]. Embryonal carcinoma is the most common childhood testicular neoplasm. It has been described in a variety of histologic variants as embryonal carcinoma of infancy, orchioblastoma, yolk sac tumor, endodermal sinus tumor, Teilum tumor, and adenocarcinoma with clear cells. Because of the rarity of the tumor, there is no general concensus concerning the management. Recently we encountered two children with embryonal carcinoma of testis who had rather unusual clinical courses. We believe that a report of these cases may contribute to further design of the most suitable therapeutic regimen.

Castration↗
PubMed1977

Lymphangiography and bone scan in the study of lymphangiomatosis.

Lymphangiomatosis is a rare congenital systemic lymphatic malformation involving multiple bones and other sites. A 12-year old boy with lymphangiomatosis was studied with lymphangiography and bone scan. Lymphangiogram demonstrated irregular pooling of contrast medium in both the mediastinal tumor and bones. Bone scan also revealed increased activity in areas which were not demonstrated radiographically.

Bone Neoplasms↗