Assessment of the contribution of chiral odorants to aroma property of baked green teas using an efficient sequential stir bar sorptive extraction approach.

Chiral volatile compounds are known to be distributed in teas at various enantiomeric ratios. However, the performance of each enantiomer, including aroma characteristics, aroma intensities, and contribution to the overall flavor of tea, is still unclear. In this study, aroma characteristics and intensities of 38 volatile enantiomers in standards and baked green teas with chestnut-like aroma and clean aroma were evaluated by an efficient sequential headspace-stir bar sorptive extraction (seq-HS-SBSE) approach combined with the enantioselective gas chromatography-olfactometry/mass spectrometry (Es-GC-O/MS) technique.

Calcitonin gene‑related peptide‑mediated pharmacological effects in cardiovascular and gastrointestinal diseases (Review).

Calcitonin gene‑related peptide (CGRP) is the predominant neurotransmitter located in sensory nerves. This peptide is extensively distributed in central and peripheral tissues. CGRP causes relaxation of cardiovascular smooth muscle cells and confers protection against ischaemic myocardium and cardiac remodeling.

[Assessment of efficacy of acupuncture combined with hyperbaric oxygen therapy for patients with delayed encephalopathy of CO intoxication by magnetic resonance voxel incoherent motion imaging].

Objective: To observe the effect of acupuncture plus hyperbaric oxygen (HBO) on cerebral blood perfusion in patients with delayed encephalopathy after carbon monoxide poisoning (DEACMP).

Methods: Twenty-eight patients with DEACMP were randomly divided into acupuncture group (=14 cases) and control group (=14 cases). Patients of the acupuncture group were treated by using "Xingnao Kaiqiao" needling technique (specific set of acupuncture points as Yintang ［EX-HN3］, Shangxing ［GV23］, Baihui ［GV20］, Sishenchong ［EX-HN1］, Fengchi ［GB20］, Taichong ［LR3］, etc.

Characterization of the key aroma compounds in Longjing tea using stir bar sorptive extraction (SBSE) combined with gas chromatography-mass spectrometry (GC-MS), gas chromatography-olfactometry (GC-O), odor activity value (OAV), and aroma recombination.

Longjing tea is the most famous premium green tea, and is regarded as the national tea in China, with its attractive aroma contributing as a prime factor for its general acceptability; however, its key aroma compounds are essentially unknown. In the present study, volatile compounds from Longjing tea were extracted and examined using stir bar sorptive extraction (SBSE) combined with gas chromatography-mass spectrometry (GC-MS). Data obtained from the present study revealed that 151 volatile compounds from 16 different chemical classes were identified by GC-MS analysis.

[Current state of researches on mechanisms of acupuncture in improvement of hypoxia-ischemic diseases of the central nervous system].

Acupuncture is widely used in the treatment of ischemic diseases of the central nervous system in different clinical stages and has achieved a good clinical effect. The current research showed that acupuncture can improve cerebral blood flow perfusion via increasing blood flow volume, blood flow velocity, the levels of vasomotor substances and reduction of blood viscosity and erythrocyte aggregation index. In recent years, many studies focused on the pathophysiological mechanism of acupuncture in improving cerebral ischemia via triggering the cholinergic vasodilatation, up-regulation of expression of vascular-related proteins and genes，attenuation of inflammatory reaction, etc.