Effects of Intraperitoneal L-Leucine, L-Isoleucine, L-Valine, and L-Arginine on Milk Fat Depression in Early Lactation Cows
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چکیده
منابع مشابه
Diagnosis of maple syrup urine disease by determination of L-valine, L-isoleucine, L-leucine and L-phenylalanine in neonatal blood spots by gas chromatography-mass spectrometry.
A novel method was developed for the diagnosis of maple syrup urine disease (MSUD) by the determination of L-valine, L-leucine, L-isoleucine and L-phenylalanine in dried blood spots of newborns by gas chromatography-mass spectrometry (GC-MS). The four amino acids were extracted from blood samples by methanol and derivatized by n-butanol and trifluroacetic anhydride under optimum reaction condit...
متن کاملDiauxie used as a microbiological assay for L-isoleucine or L-valine in Escherichia coli.
FIG. 1. Diauxic lag of cuiltures conitaining valine and isoleucine. All cultures were grown by shakinig (330 rev/ min) at 37 C in medium containing 2.0 g ofNaH2PO4 O H20, 7.0 g ofK2HP04, 2.0 g of (NH4)2SO4, 0.2 g of MgSO4 v 7H20 and I mg of thiamine hydrochloride in I liter of distilled water. Overnight cultures grown in 0.2%o glucose were harvested by centrifugation during exponential phase, r...
متن کاملRapid Communication Effects of Af-Monomethyl-L-Arginine and L-Arginine on Acetylcholine Renal Response
Intrarenal infusion of acetylcholine in meclofenamate-treated dogs significantly increased renal blood flow, diuresis, and natriuresis. Intrarenal infusions of either A '̂-monomethylL-arginine (inhibitor of endothelium-derived relaxing factor formation), or L-arginine (precursor of endothelium-derived relaxing factor formation) did not modify basal levels of those parameters. However, the infusi...
متن کاملEffects of L-arginine cardioplegia on myocardium.
Infusion of L-arginine (a precursor of nitric oxide, NO) in cardioplegia was examined to test its effect on metabolism of myocardium after myocardial ischemia and reperfusion (IR). Twenty-eight patients undergoing valve replacement were involved and randomly divided into two groups: the control group (crystalloid cardioplegia) and the experimental group (crystalloid cardioplegia + L-arginine). ...
متن کاملA non-planar peptide bond in L-seryl-L-valine.
The molecular structure of (I) is shown in Fig. 1. Bond lengths and angles are normal, but the unusual non-planarity of the peptide bond is quite evident. The associated torsion angle C1ÐC3ÐN2ÐC4 (!) is 157.37 (15) , a deviation from 180 that is superceded among small chiral peptides only by the 156.6 ! angle in N-(tert-butoxycarbonyl)-l-Pro-l-Leu benzyl ester (Sugino et al., 1978). Fig. 2(a) s...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1994
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(94)77043-0