title: Closed-loop system in evaluation of insulin infusion rates for an open-loop system.
abstract: The daily insulin requirements as calculated with a closed-loop system (Biostator), were used for insulin infusion with a portable, miniaturized pump in 6 juvenile-onset, insulin-requiring diabetics. Three diabetics were given insulin in a manner like that of the Biostator, e.g., maximal insulin infusion about 1 hour after start of meals. The MBG was 8.7 +/- 3.9 (SD) mmol/l. Three other diabetics had insulin in a fixed profile with peaks beginning simultaneously with meals. MBG of these patients was 4.4 +/- 1.9 mmol/l. Knowing the daily insulin dosage as calculated from the Biostator, normal blood glucose levels can be achieved with a fixed profile of insulin given by a portable pump.
mesh_terms: D000328:Adult; D001187:Artificial Organs; D003922:Diabetes Mellitus, Type 1 / Q000188:drug therapy*; D004435:Eating; D005246:Feedback; D006801:Humans; D007263:Infusions, Parenteral; D007328:Insulin / Q000008:administration & dosage / Q000627:therapeutic use*; D007515:Islets of Langerhans / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion
chemical_list: D007328:Insulin