PubMed HealthSearch

Biomedical subjects

B Leatherdale

Publications and source records attributed to B Leatherdale.

3 recordsLinked to original sources

Transfer from animal insulins to semisynthetic human insulin: a study in four centres.

The effects of transfer from animal insulin to semisynthetic human insulin on glycaemic control, insulin dose and anti-insulin antibodies were investigated in a total of 108 patients at four centres in a double-blind controlled study of eight months duration. Six months after transfer from porcine to human insulin there was a mean (+/- SE) increase in pre-breakfast blood glucose of 1.1 +/- 0.6 mmol l-1 (vs a reduction of 1.6 +/- 0.7 mmol l-1 in controls) (p less than 0.01), and a mean increase of pre-lunch blood glucose of 0.9 +/- 0.7 mmol l-1 (vs a reduction of 1.14 +/- 0.7 mmol l-1 in controls) (p less than 0.05). Six months after transfer from bovine to human insulin, there were no significant changes in blood glucose. Glycated haemoglobin showed no significant change six months after transfer from either bovine or porcine to human insulin. Hypoglycaemic symptoms, the total daily insulin dose, and the ratio of short- to intermediate-acting insulin did not change significantly after transfer from either bovine or porcine to human insulin. Transfer from bovine to human insulin resulted in a significant decline in anti-human insulin antibodies (mean (range): 50.5(14.8-125)% of initial levels), vs controls (113(43.4-234)% of initial levels; p = 0.034), and a non-significant decline in anti-bovine insulin antibodies (52.2(25.8-111)% vs 81.7(42.5-128)%; p = 0.082).

Adult

Hormonal pattern of relapse in hyperthyroidism.

22 patients with Grave's disease were followed up for up to a year after antithyroid drug therapy was discontinued. Clinical assessment and serum T3, T4, and thyroid-stimulating-hormone (T.S.H.) estimations were done serially and simultaneously. Serum T3 or T4 concentrations may be elevated briefly in the first few weeks after antithyroid drugs are stopped, as a rebound effect not necessarily indicative of subsequent relapsf. Clinical relapse of hyperthyroidism with subsequent improvement on antithyroid drugs occurred in 13 patients. Of these 13, serum T3 concentrations became elevated before serum T4 concentrations in 5, thus predicting the subsequent development of clinical hyperthyroidism. In the remaining 8 patients who relapsed, serum T4 was elevated a month before the serum T3. Hyperthyroidism was diagnosed clinically after elevated serum T3 concentrations in 11 patients and at the same time in 2 patients. The mean period of "biochemical hyperthyroidism" in these 11 patients was 12 weeks, with a range of 1 to 56 weeks. During this period 9 of the 11 had minor clinical changes attributable to hyperthyroidism. It is concluded that serial estimations of serum T3 provide the most reliable method of monitoring relapse in hyperthyroidism.

Carbimazole