A comparison of premeal subcutaneous insulin infusion and injection in type I diabetic patients under continuous basal subcutaneous insulin delivery.

Blood glucose control under continuous subcutaneous insulin infusion (CSII) was assessed in five type I diabetic patients by measurement of mean blood glucose and M-values. These results were compared with the data obtained from treatment with constant basal subcutaneous insulin delivery supplemented by injection of regular insulin before meals into changing sites of the anterior abdominal wall. CSII treatment gave significantly (P less than 0.05) better results. It might be assumed that this is due to the more reliable insulin absorption from an unchanged site.

Studies on the pituitary "Fettstoffwechselhormon". VIII. Radioimmunoassay of the lipolytic factor P-LF II D.

A radioimmunoassay of the lipolytic peptide P-LF II D from porcine pituitaries is described. The assay is performed with 125-iodine labeled P-LF II D and with antisera either from guinea pigs or from rabbits. Bound antigen is separated from the free by double antibody technique. No cross reaction is observed with gamma lipotropin, peptide B, secretin, glucagon, isoproterenol. Due to contamination P-LF II C, beta lipotropin and human growth hormone displace the tracer when added at large doses. Complete cross reaction is observed between porcine 1-39 ACTH and P-LF II D. Specificity of this reaction is demonstrated by the increase of cross reaction, when ACTH fragments of increasing length of the polypeptide chain are used (1-23 ACTH, 1-24 ACTH and 1-28 ACTH).