[Electronic nose, HS-GC-MS, and relative odor activity value reveal odor differences and material basis of Glycyrrhizae Radix et Rhizoma products processed with different methods].

The Glycyrrhizae Radix et Rhizoma products processed with different methods, including raw materials(S) and products processed with honey according to the method in the Chinese Pharmacopoeia(Z) and Jianchangbang method(M), were analyzed in terms of the odor profile and volatile components by the electronic nose and headspace-gas chromatography-mass spectrometry(HS-GC-MS). The differential components in the three products were screened by chemometrics, on the basis of which the relative odor activity value(ROAV) was adopted to elucidate the odor differences among different products and the material basis of their odors. The results showed that the electronic nose effectively distinguished the products of Glycyrrhizae Radix et Rhizoma processed with different methods.

Correlations between flavor and fermentation days and changes in quality-related physiochemical characteristics of fermented Aurantii Fructus.

The effects of different fermentation times (0, 1, 2, 3, 4, and 5 days) on the physicochemical properties and flavor components of fermented Aurantii Fructus (FAF) were evaluated. Component analysis identified 66 compounds in positive ion mode and 32 compounds in negative ion mode. Flash GC e-nose results showed that propanal, (+)-limonene and n-nonanal may be the flavor characteristic components that distinguish FAF with different fermentation days.

[Processing evolution,chemical components and pharmacological effects of Bufonis Venenum].

Bufonis Venenum,the dried secretion of Bufo bufo gargarizans or B. melanostictus,is toxic and hard with the efficacy of removing toxicity for detumescence and relieving pain. The processing of Bufonis Venenum dates back to the Song dynasty.

[Research progress on processing history evolution, chemical components and pharmacological effects of Polygonati Rhizoma].

Polygonati Rhizoma(PR), listed as a top-grade medicine, was recorded first in the Mingyi Bielu written by TAO Hongjing. It is a good medicine through the ages to tonify Qi and nourish Yin, strengthen spleen and kidney. PR has a long history of processing and has a variety of processing methods and technologies.

Uncovering the mechanism of the effects of Paeoniae Radix Alba on iron-deficiency anaemia through a network pharmacology-based strategy.

Background: Paeoniae Radix Alba, the root of the plant Paeonia lactiflora Pall, is a common blood-enriching drug in traditional Chinese medicine. Its effectiveness in the clinical treatment of anaemia is remarkable, but its potential pharmacologic mechanism has not been clarified.

Methods: In this study, the potential pharmacologic mechanism of Paeoniae Radix Alba in the treatment of iron-deficiency anaemia was preliminarily elucidated through systematic and comprehensive network pharmacology.

[Pollution Characteristics and Health Risk Assessment of Atmospheric VOCs in Chengdu].

Volatile organic compounds (VOCs) were measured in atmospheric samples collected from urban and roadside atmospheric environments in Chengdu in September 2012. The composition, chemical reactivity, and concentration level and its variation characteristics of VOCs were studied, and the health risk of aromatic compounds was assessed. Results showed that the mean mass concentrations of total VOCs (TVOCs) were (108.

[Heavy Metal Contamination in Farmland Soils at an E-waste Disassembling Site in Qingyuan, Guangdong, South China].

Crude e-waste dismantling activities have caused a series of environmental pollution problems, and the pollutants released from the dismantling activities would finally pose high risks to human health by means of the accumulation through food chains. To explore the contamination status of heavy metals to the surrounding farmland soils in Longtang and Shijiao Town, Qingyuan, Guangdong, China, 22 farmland soil samples were collected and analyzed for the contents, spatial distributions and chemical forms of 6 heavy metals (Pb, Cu, Cd, Zn, Cr and Ni). The results showed that the 6 heavy metals exhibited obvious accumulations when compared to the corresponding background values in Guangdong Province.

17-Dimethylaminoethylamino-17-demethoxygeldanamycin attenuates inflammatory responses in experimental stroke.

Heat shock protein 90 (HSP90) is a ubiquitous molecular chaperone involved in the proper conformation of many proteins. HSP90 inhibitors (17-dimethyl aminoethylamino-17-demethoxygeldanamycin hydrochloride [17-DMAG]) bind to and inactivate HSP90, suppressing some key signaling pathways involved in the inflammatory process. Since considerable evidence suggests that inflammation accounts for the progression of cerebral ischemic injury, we investigated whether 17-DMAG can modulate inflammatory responses in middle cerebral artery occluded (MCAO) mice.

[Historical records and modern studies on agarwood production method and overall agarwood production method].

Agarwood is a precious traditional Chinese medicine with the efficacy of promoting qi circulation and relieving pain, warming middle-jiao, controlling nausea and vomiting, governing inspiration and relieving asthma, therefore it is widely applied in the clinic. Meanwhile, agarwood is also a precious spice. Aquilaria sinensis is the only source of agarwood production in China.

Preclinical assessment of the distribution, metabolism, and excretion of S-propargyl-cysteine, a novel H2S donor, in Sprague-Dawley rats.

Aim: To study the distribution, metabolism and excretion of S-propargyl-cysteine (SPRC), a novel hydrogen sulfide (H2S) donor, after oral administration in rats.

Methods: Adult Sprague-Dawley rats were used. The tissue distribution of [(35)S] SPRC-derived radioactivity was measured using a liquid scintillation counter.

[The effects of shRNA targeting angiotensin II type 1 receptor on blood pressure and AT1R mRNA expression in spontaneously hypertensive rats].

Objective: To investigate the effects of retroviral vector containing shRNA targeting rat angiotensin II type 1 receptor (AT1R) gene (Ad5-AT1R-shRNA) on blood pressure and AT1R mRNA expression in spontaneously hypertensive rats (SHR).

Methods: Retroviral vector containing shRNA targeting rat AT1R gene was constructed and propagated further in 293 cells. SHR rats were randomly divided into SHR + Ad5-AT1R-shRNA (1.