[Determination of thiram, propineb and metiram in mushroom by gas chromatography-mass spectrometry].

Objective: To establish a method for determination of thiram, propineb and metiram in mushroom samples by gas chromatography-mass spectrometry(GC-MS).

Methods: Insoluble heavy metal salts were converted into water-soluble sodium salts by alkaline buffer with strong chelating agents. Dithiocarbamates can be converted into different methyl ester compounds with ion pair methylation.

Total glucosides of peony improve ovalbumin-induced allergic asthma by inhibiting mast cell degranulation.

Ethnopharmacological Relevance: Paeonia lactiflora Pall. (peony) is a medicinal plant used in the Xiaoqinglong decoction, a commonly prescribed traditional Chinese medicine for asthma. The main active ingredients of peony roots-described as the total glucosides of peony (TGP)-have anti-inflammatory, immunomodulatory, and protective effects on endothelial cells, and they are known to improve rheumatoid arthritis.

Integration of Metabolomics and Transcriptomics Reveals the Therapeutic Mechanism Underlying Paeoniflorin for the Treatment of Allergic Asthma.

Asthma is a chronic airway inflammatory disease, which is characterized by airway remodeling, hyperreactivity and shortness of breath. Paeoniflorin is one of the major active ingredients in Chinese peony, which exerts anti-inflammatory and immune-regulatory effects in multiple diseases. However, it remains unclear whether paeoniflorin treatment can suppress allergic asthma.

Anti-hypertensive effects of laiju extract in two different rat models.

The aim of the study was to evaluate whether laiju extract (LJE) from Semen Raphani and Flos Chrysanthemi has an anti-hypertensive effect in renal hypertensive rat (RHR) and spontaneous hypertensive rat (SHR). LJE was prepared by extracting dried Semen Raphani and Flos Chrysanthemi with 70% ethanol. RHR and SHR models were prepared by standard methods.