title: Effects of protein intake and growth hormone on utilization of N15 from ammonium citrate.
abstract: In experiments on dogs receiving diets containing either 12.3 per cent of casein and a supplement of methionine, or 36.2 per cent of casein, utilization of N15 from ingested ammonium citrate was larger when it was added to the low protein diet. Growth hormone induced nitrogen storage and gain in weight on the low protein diet, and increased utilization of N15 from ammonium citrate much more than it did when protein intake was high. Addition of sodium lactate, pyruvate, or α-ketoglutarate to either diet on the day that N15-labeled ammonium citrate was fed did not alter the amount of N15 retained.
authors.forename: O H
authors.initials: OH
authors.lastname: Gaebler
authors.forename: H C
authors.initials: HC
authors.lastname: Choitz
mesh_terms: D000818:Animals; D001835:Body Weight / Q000187:drug effects*; D002364:Caseins; D019343:Citric Acid / Q000378:metabolism*; D004032:Diet; D018753:Diet, Protein-Restricted; D019587:Dietary Supplements; D004285:Dogs; D004326:Drinking / Q000187:drug effects*; D005260:Female; D005340:Fibrinogen / Q000032:analysis*; D013006:Growth Hormone / Q000494:pharmacology*; D019382:Human Growth Hormone; D007656:Ketoglutaric Acids; D008715:Methionine; D009584:Nitrogen / Q000378:metabolism*; D009587:Nitrogen Isotopes / Q000032:analysis*; D000644:Quaternary Ammonium Compounds / Q000378:metabolism*
chemical_list: D002364:Caseins; D007656:Ketoglutaric Acids; D009587:Nitrogen Isotopes; D000644:Quaternary Ammonium Compounds; D019382:Human Growth Hormone; D019343:Citric Acid; C481046:ammonium citrate; D005340:Fibrinogen; D013006:Growth Hormone; D008715:Methionine; D009584:Nitrogen