1 H nuclear magnetic resonance studies of thyrotropin releasing factor (TRF)

The Conformations of 1-Thiacyclooctan-3-One Dynamic Nuclear Magnetic Resonance and Force-Field Calculation

The 1H and natural-abundance 13C-NMR spectra of 1-thiacyclooctan-3-one (1) have been measured from 25 to -100°C. Coalescence is observed in the 1H-NMR spectra of (1) at about -80°C, and attributed to ring inversion in a boat-chair conformation, which is the predominant conformation of (1). The free energy of activation (DG¹</s...

NUCLEAR MAGNETIC RESONANCE STUDY OF THE STRUCTURE OF GLYOXALDIHYDRAZONE

Study of the nuclear magnetic resonance spectra of glyoxaldihydrazone in dimethylsulfoxide and deuterochlorofonn leads to the conclusion that this compound exists predominantly in non-chelate structure

Nuclear magnetic resonance studies of allergens.

Nuclear magnetic resonance studies of phospholipid micelles.

The proton magnetic resonance spectrum of DL-a!-lecithin at 100 MHz in CHCJ solvent is reported. An analysis of the spectrum is made. The chemical shifts of the N-(CH& protons and the resonance peak associated with the condensed water molecule showed concentration dependence with the latter showing the more pronounced response. These chemical shift changes are interpreted in terms of micelle fo...

Effect of growth hormone-releasing factor (1-29)NH2 and thyrotropin-releasing factor on growth hormone release in lactating sows.

Résumé. Vingt-six truies en lactation ont reçu les traitements suivants : 1) solution saline physiologique ; 2) somatocrinine ou hGRF(1-29)NH 2(20 ¡lg.kg1) ; 3) thyréolibérine (TRF) (1 ¡lg.kg) ; 4) combinaison de GRF et de TRF (20 et 1 ¡lg.kgrespectivement). La solution saline ou les peptides ont été injectés par voie sous-cutanée, deux fois par jour, du 5e au 25e jour post-partum. Les niveaux ...