Increased bone mineral density in patients with chronic hypoparathyroidism.

Bone mineral density (BMD) has been shown to be increased in postmenopausal females with postthyroidectomy hypoparathyroidism, but it is not known whether similar gains occur in patients with idiopathic hypoparathyroidism. In this study, we measured the BMD of lumbar spine and proximal femur in 14 patients, 8 with idiopathic hypoparathyroidism and 6 with postthyroidectomy hypoparathyroidism, using dual-energy x-ray absorptiometry. Their age ranged from 23-57 yr old, with a mean of 42.

Target-seeking behavior of plasma glucose with exercise in type 1 diabetes.

Objective: To investigate the reproducibility of the plasma glucose (PG) response to exercise in subjects with type 1 diabetes on a nonintensive insulin regimen.

Research Design And Methods: Subjects cycled for 45 min at 50% VO(2max) on two occasions (studies 1 and 2) either 1 h after lunch and usual insulin (protocol A) or after overnight fasting without morning insulin (protocol B). Identical diet, activity, and insulin (twice daily neutral and intermediate) were maintained before and during each study day.