Biomedical subjects

J A Ostuni

Publications and source records attributed to J A Ostuni.

3 recordsLinked to original sources

PubMed1982

Combined vitamin D parathyroid defect in thalassemia major.

A 17-year-old girl with thalassemia major experienced tetany. The serum calcium level was 5.5 mg/dL, and the phosphorus level was 6.3 mg/dL. Serum levels of parathyroid hormone (PTH) and 25-hydroxyvitamin D (25-OHD) were subnormal at 125 pg/mL and 8.1 ng/mL, respectively, As a result of these findings, serum 25-OHD and PTH levels were measured in an additional 12 patients with thalassemia major. Low levels of both 25-OHD and PTH were found frequently. An increase in serum 25-OHD levels was noted in each of four patients who were examined after iron chelation therapy.

25-Hydroxyvitamin D 2↗

PubMed1978

Prevention of involutional bone loss by exercise.

To ascertain whether exercise could prevent involutional bone loss, we studied 18 postmenopausal women, half of whom exercised for 1 h three times a week. Total and regional bone mass were measured before and after 1 year of exercise by the techniques of total-body neutron activation analysis (total body calcium) and photon absorptiometry (bone mineral content) of the distal radius. Total body potassium was measured by whole body counting. Bone mineral content and total body potassium did not change significantly in either group. Total body calcium increased in the exercise group from 781 +/- 95 g of 801 +/- 118 g (SD). In contrast, total body calcium decreased in each subject in the sedentary group. The daily calcium balance derived from the difference in total body calcium measurements was significantly different in the two groups of women (P less than 0.001). These data support the hypothesis that exercise can modify involutional bone loss.

Bone and Bones↗

PubMed1975

Metastatic adrenal cortical carcinoma. Documented cure with combined chemotherapy.

In 1966, we published the case report of a patient with adrenal carcinoma and wide spread metatasis who, after treatment with mitotane (o,p-DDD) and fluorouracil, developed Addison disease accompanied by a clinical remission. The patient's unexpected death from an unrelated cause now allows us to verify what to our knowledge is the first cure of metastatic adrenal carcinoma by chemotherapy.

Adolescent↗