diacetyl/кариес

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Study on the chiral recognition of the enantiomers of ephedrine derivatives with neutral and sulfated heptakis(2,3-O-diacetyl)-beta-cyclodextrins using capillary electrophoresis, UV, nuclear magnetic resonance spectroscopy and mass spectrometry.

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The enantiomers of methylephedrine, pseudoephedrine and ephedrine showed a different migration behavior in capillary electrophoresis in the presence of beta-cyclodextrin (beta-CD), heptakis(2,3-O-diacetyl)-beta-cyclodextrin and heptakis(2,3-O-diacetyl-6-sulfato)-beta-cyclodextrin (HDAS). Utilizing

Evaluation of the effect of diacetyl morphine on salivary factors and their changes after methadone therapy.

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OBJECTIVE Psychoactive drugs are responsible for pathological changes in the mouth including dental caries, which most troublesome. The aim of the present study was to evaluate the effect of heroin on several salivary factors which are involved in the oral health and their changes after methadone

Do we know the mechanism of chiral recognition between cyclodextrins and analytes?

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The resolution of chiral phenethylamine analogue compounds were studied in presence of single-isomer neutral and negatively charged cyclodextrins (CDs) by means of capillary electrophoresis (CE) and NMR spectroscopy. Whereas the native beta-CD and heptakis(2-N,N-dimethylcarbamoyl)beta-cyclodextrin

Effects of chronic treatment with various neuromuscular blocking agents on the number and distribution of acetylcholine receptors in the rat diaphragm.

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1. Acetylcholine receptors in the end-plate and non-end-plate areas of the rat diaphragm, after treating the animal with hemicholinium-3, alpha- or beta-bungarotoxin in vivo, were studied by their specific binding of labelled alpha-bungarotoxin. 2. Subcutaneous injection of maximum tolerable doses

Cardenolide analogues. VI. The metabolism of the prodrug diacetylcymarol in the rat.

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1. Diacetylcymarol is an acetylated glycoside which is better absorbed than the parent glycoside, cymarol. 2. Diacetyl[19-3H]cymarol was rapidly metabolized and excreted by the rat following intraperitoneal administration. 3. The drug was metabolized extensively to polar compounds with the principal

Intranasal odorant concentrations in relation to sniff behavior.

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Knowledge on how odorants are transported through the nasal cavity to the olfactory epithelium is limited. One facet of this is how the sniffing behavior affects the abundance of odorants transferred to the olfactory cleft and in turn influences odor perception. A novel system that couples an online

Anion-templated assembly of half-sandwich rhodium-based multinuclear metallamacrocycles.

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A series of half-sandwich rhodium-based metallamacrocycles with tetra- and hexanuclearities have been synthesized. They are assembled by linking the deprotonated 2,4-diacetyl-5-hydroxy-5-methyl-3-(3-pyridinyl)cyclohexanone (HL) ligand in the presence of counteranions. When the counteranion was the

Relation between PROP taster status and fat perception, touch, and olfaction.

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We tested the hypothesis that fat perception (sensitivity to and preferences for fat) may be linked to 6-n-propylthiouracil (PROP) taster status as a result of differences in trigeminal innervation of the oral cavity. In addition, we examined the relationship between taster status and sensitivity to

Self-assembly of chiral molecular polygons.

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Treatment of 2,2'-diacetyl-1,1'-binaphthyl-6,6'-bis(ethyne), L-H2, with 1 equiv of trans-Pt(PEt3)2Cl2 led to a mixture of different sizes of chiral metallocycles [trans-(PEt3)2Pt(L)]n (n = 3-8, 1-6). Each of the chiral molecular polygons 1-6 was purified by silica gel column chromatography and

Nuclear magnetic resonance spectroscopic study of the inclusion complex of (R)-tedizolid with HDAS-β-CD, β-CD, and γ-cyclodextrin in aqueous solution.

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NMR spectroscopy is used to investigate the host-guest complexation of (R)-tedizolid, such as tedizolid with the hydroxymethyl substituent at the C5 position of the oxazolidinone ring ((R)-TED) or tedizolid with 5-methyl dihydrogen phosphate ((R)-TED-PO₄) with

Probiotics: do they have a role in oral medicine and dentistry?

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This review describes current knowledge on probiotic bacteriotherapy from the oral health perspective. Recent experimental studies and results from randomized controlled trials have shown that certain gut bacteria, in particular species of Lactobacillus and Bifidobacterium, may exert beneficial

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