We conclude that the dual wave provided the most effective method of insulin administration for this meal. The dual- and square-wave therapies resulted in lower glucose levels 4 h after the meal in comparison with the single and double-bolus treatments.

Growth potential among people with Type 1 diabetes and subclinical hypothyroidism may be significantly reduced. Growth was evaluated in 25 children with diabetes who had thyromegaly and elevated thyrotrophin (TSH) levels. All patients appeared clinically euthyroid except for four with short stature. Basal growth rate was significantly lower (p less than 0.005) in Group 1 (TSH greater than 50 mU l-1) and Group 2 (TSH level 10.1-50 mU l-1) than in patients with TSH levels between 5 and 10 mU l-1 (Group 3) or control diabetic children. Serum thyroxine (T4) levels were significantly lower (p less than 0.05) in Group 1 than in Groups 2 or 3. Significant improvement in growth velocity after thyroxine treatment was observed in Group 1 patients compared with those in Groups 2 or 3 (p less than 0.05). More prepubertal test children demonstrated improved growth after beginning thyroxine compared with matched diabetic controls (p less than 0.02). Postpubertal subjects treated with thyroxine did not show significant differences in growth velocity compared with controls. Z-scores for height were not different (p greater than 0.05; ANOVA) between control and test patients for any of the groups. Early detection of subclinical hypothyroidism by thyromegaly, reduced growth velocity, and elevated TSH levels, with institution of thyroxine treatment, can improve growth in prepubertal diabetic children.

The rate of major congenital anomalies was 5.4% [95% CI (3.45%, 7.44%)] for offspring of mothers with diabetes mellitus treated with insulin lispro before and during pregnancy. The current published rates of major anomalies in infants born to mothers with diabetes treated with insulin are between 2.1 and 10.9%. This suggests that the anomaly rate with insulin lispro treatment does not differ from the published major congenital anomaly rates for other insulin treatments.

Managing chronic constipation involves identifying and treating secondary causes, instituting lifestyle changes, prescribing pharmacologic and nonpharmacologic therapies, and, occasionally, referring for surgery. Several new drugs have been approved, and others are in the pipeline.

Various agents have been tried in subjects with newly diagnosed Type 1 (insulin-dependent) diabetes mellitus in an attempt to preserve Beta-cell function. In this double-blind study, nicotinamide or placebo were given for one year to 35 children and adolescents with newly-diagnosed Type 1 diabetes. All subjects were within six weeks of diagnosis and were between the ages of 6 and 18 years. Nicotinamide, a poly-(ADP-ribose) synthetase inhibitor, was given in a dose of 100 mg/year of age up to a maximum of 1.5 g/day. There were no initial differences between the 17 control and the 18 test subjects in relation to mean age, sex distribution, or severity at onset. Mean insulin dosages and HbA1 values were similar for the two groups during the year of study. Fasting and glucagon-stimulated C-peptide levels were similar for the control and nicotinamide treated groups at the beginning and after 4 and 12 months. There were no differences in remission rates between the two groups. Nicotinamide, at this dosage, does not preserve residual insulin secretion in subjects with newly diagnosed Type 1 diabetes.