摘要:
Alkali metal or ammonium insulin is obtained by preparing an alkaline solution of a divalent metal insulin, chelating agent, and alkali metal or ammonium ions and crystallizing the desired insulin.
摘要:
ACYL-SUBSTITUTED-INSULINS, PARTICULARLY PHENYL- AND SUBSTITUTED-PHENYLGLYCYL-INSULINS, ESPECIALLY N-PHENYLGLYCYLINSULIN, N-P-METHYLPHENYLGLYCLY-INSULIN AND N-P-CHLOROPHENYLGLYCOL-INSULIN (I), ARE PREPARED BY TREATING INSULIN WITH AN ACYLATING AGENT, ESPECIALLY THE CORRESPONDING NCHLOROFORMYL-N-PHENYL OR SUBSTITUTED-PHENYLGLYCIN. (II). THE NEW COMPOUNDS (I) HAVE HYPOGLYCEMIC ACTIVITY AND ARE USEFUL TO TREAT DIAMBETES, ESPECIALLY IN SUBJECTS WHO ARE INSULIN FAST.
摘要:
A composition of matter and method useful in treating certain disease conditions by virtue of a protein mixture having a variety of disparate properties, such as facilitating wound healing and influencing glucose metabolism. It also exhibits pronounced superoxide dismutase activity. The composition may supplant or be combined with cortico-steroids to provide anti-inflammatory response while facilitating wound healing. It increases the rate of urea nitrogen synthesis, reduces peripheral blood ammonia, simultaneously facilitates glucose uptake and glycogen deposition. It is useful for treating hepatitis, arthritis, and scar tissue.
摘要:
A physiologically acceptable insulin derivative has the terminal amino group of the B chain (B1, phenylalanine) protected by an acyl group or other blocking group containing up to seven carbon atoms and the amino group of the A chain (A1, glycine) is either free or protected by means of an acyl or other blocking group containing no more than four carbon atoms and preferably no more than three atoms other than hydrogen. Pharmaceutical preparations may be prepared containing an effective amount of such an insulin derivative together with a physiologically acceptable diluent. An insulin derivative of reduced antigenicity is obtainable from porcine or bovine insulin by reacting the insulin with an acylating agent or other blocking reagent to acylate or otherwise block the amino group of the B1 amino acid and optionally block the A1 and/or B29 amino acid, followed by purification of the derivative by various methods.
摘要:
Insulin derivatives which are water soluble, readily isolated, immunologically acceptable and which retain hypoglycaemic activity are those in which at least one of the A1, B1 and B29 aminoacid amino groups is converted into a blocked amino group having a substituent capable of forming an anion, e.g., by substitution with dicarboxylic acid radicals.
摘要:
A STABLE, NEUTRAL SOLUTION (PH6.5-8) OF BOVINE INSULIN HAVING A QUICK-ACTING BLOOD-SUGAR LOWERING EFFECT. THE SOLUTION MAY ALSO CONTAIN INSULIN OF OTHER TYPES (ORGIN) OR LONG-ACTING INSULIN MATERIAL. BOVINE INSULIN, WHICH TENDS TO PRECIPITATE AT NEUTRAL PH VALUES, IS RETAINED IN SOLUTION BY THE CORPRESENCE OF FROM 0.15% TO 0.5% (W./V.) OF PHENOL OR CRESOL AND OF ZINC IN THE AMOUNT OF FROM 0.3 TO 0.8% BY WEIGHT OF THE INSULIN. SODIUM CHORIDE AND SIMILAR ELECTROLYTES ARE EXCLUDED, AND THE SOLUTION IS MADE ISOTONIC WITH GLYCEROL OR GLUCOSE OR OTHER CARBOHYDRATES WHICH ARE NOT ELECTROLYTICALLY DISSOCIATD IN AQUEOUS SOLUTION. HOWEVER, A PHOSPHATE BUFFER, ESPECIALLY SODIUM PHOSPHATE IS PERMISSIBLE AND DESIRABLE, AND INCREASES THE SOLUBILITY OF THE BOVINE INSULIN.