Exploring the mechanism and effective compounds of Changan Granule on diarrhea-predominant irritable bowel syndrome via regulating 5-hydroxytryptamine signaling pathway in brain-gut axis.

Background: Changan Granule (CAG) is a drug product developed from a traditional Chinese medicine (TCM) empirical prescription for diarrhea-predominant irritable bowel syndrome (IBS-D). The action mechanism and effective compounds of CAG in the treatment of IBS-D are not well understood.

Purpose: This study aimed to investigate the effectiveness, action mechanism and effective compounds of CAG for treating IBS-D.

Two new phytoecdysteroids isolated from .

Two new phytoecdysteroids, (24)-20,26-dihydroxy-24(28)-dehydro-28-methyl-ecdysone (), (24)-22,25-epoxy-2,3,14,20-tetrahydroxyergosta-7,24(28)-dien-28-methyl-6-one (), together with eleven known compounds (-) were isolated from the whole plant of L. The chemical structures of the compounds were elucidated by 1D and 2D NMR and HR-ESI-MS and compared with data from the literature. The isolated compounds were evaluated for their inhibitory effects on NO, TNF-α and IL-6 production in LPS-induced RAW 264.

Isolation and identification of the causal agent of gummy stem blight disease in Cucumis sativus caused by a bacterial pathogen in China.

Recently, a new bacterial disease was detected on cucumber stalks. In order to study the pathogenesis of this disease, the pathogenic bacteria were isolated and identified on the basis of morphological and molecular characteristics, and further analyzed for pathogenicity and antagonistic evaluation. Pathogenicity analysis showed that HlJ-3 caused melting decay and cracking in cucumber stems, and the strain reisolated from re-infected cucumber stalks was morphologically identical to HlJ-3 colonies, which is consistent with the Koch's postulates.

Analysis of full length transcriptome and resistance characteristics of Atraphaxis bracteata under drought.

Drought is one of the main environmental factors affecting plant survival and growth. Atraphaxis bracteata is a common desert plant mainly utilized in afforestation and desertification control. This study analyzed the morphological, physiological and molecular regulatory characteristics of different organs of A.

Effect of radiotherapy exposure on fruquintinib plus sintilimab treatment in refractory microsatellite stable metastatic colorectal cancer: a prospective observation study.

Background: Immune checkpoint inhibitors (ICIs) in combination with antiangiogenic drugs have shown promising outcomes in the third-line and subsequent treatments of patients with microsatellite stable metastatic colorectal cancer (MSS-mCRC). Radiotherapy (RT) may enhance the antitumor effect of immunotherapy. However, the effect of RT exposure on patients receiving ICIs and targeted therapy remains unclear.