Overview of deltamethrin residues and toxic effects in the global environment.

Pyrethroids are synthetic organic insecticides. Deltamethrin, as one of the pyrethroids, has high insecticidal activity against pests and parasites and is less toxic to mammals, and is widely used in cities and urban areas worldwide. After entering the natural environment, deltamethrin circulates between solid, liquid and gas phases and enters organisms through the food chain, posing significant health risks.

Transcriptional Regulation of hmsB, A Temperature-Dependent Small RNA, by RovM in Yersinia pestis Biovar Microtus.

HmsB, a temperature-dependent sRNA, promotes biofilm formation by Yersinia pestis, but whether its own expression is regulated by other regulators is still poorly understood. RovM is a global regulator that activates biofilm formation but represses the virulence of Y. pestis.

Single-cell transcriptomic survey of cell diversity and functional changes in yak hearts at different altitude.

The yak (Bos grunniens) is a species adapted to the hypoxic environment in the plateau area. The heart is a hypoxia-sensitive organ involved in this adaptation. Herein, we used single-cell RNA-seq technology and clustering to determine the presence of 11 cell populations in the yak heart.

Effect of leptin on the growth and expression of STAT3 in yak mammary epithelial cells.

Background And Aim: Leptin (LEP) is an autocrine and paracrine factor produced by the fat pad and acinar epithelial cells of the breast. This study aimed to investigate the effects of LEP on yak mammary epithelial cells (YMECs) and the expression of STAT3. In addition, we evaluated the possible effects of prolactin (PRL) on the function of LEP.

Global Research Status and Trends of Femoral Neck Fracture Over the Past 27 Years: A Historical Review and Bibliometric Analysis.

Background: Femoral neck fracture (FNF) is a commonly encountered injury in orthopedic practice, and many studies have been conducted in this field. However, no bibliometric studies regarding the global research trend concerning FNF have been performed. This study aims to analyze the knowledge framework, research hotspots, and theme trends in the field of FNF research.

The outbreak of rabbit hemorrhagic virus type 2 in the interior of China may be related to imported semen.

• We identified one RHD case caused by a new RHDV variant (GI.2) in China through HA, TEM, and genome sequencing. • This is the first study to demonstrate that GI.

[Forms Distribution and Ecotoxicity of Three Forms of Sulfonamides in Root-Soil Interface of Maize].

Forms distribution and ecotoxicity of sulfonamides in root-soil interface of maize were studied by chemical analysis and luminescent bacteria toxicity assay. The results indicated that the water soluble residues were the main form in rhizosperic soils, and the organic solvent extractable residues were the main form in far-rhizosperic soils. The three forms of sulfonamides showed relatively lower toxicity to luminescent bacteria with the relative inhibition rates less than 30%.

[Distribution and Risk Assessment of Sulfonamides Antibiotics in Soil and Vegetables from Feedlot Livestock].

Soil and vegetable samples were collected from 13 different livestock farms of different sizes in Xinxiang of China, and the residues of three sulfonamides including sulfadiazine, sulfamonomethoxine, and sulfamethoxazole were analyzed by HPLC with a fluorimetric detector, The results indicated that the total concentration ranges of the three sulfonamides in soil and vegetable were 7.60-176.26 µg · kg⁻¹ and ND-32, 70 µg · kg⁻¹, respectively.

Chemical constituents from Eupatorium chinense.

Two new monoterpenoid glycosides, α-(E)-acaridiol 8-O-β-d-glucopyranoside (1) and α-(E)-acaridiol 9-O-β-d-glucopyranoside (2), as well as a new thiophen, 2-acetyl-3-hydroxy-5-(prop-1-ynyl)thiophen 3-O-β-d-glucopyranoside (3), were isolated from the roots of Eupatorium chinense. Their structures were determined on the basis of extensive spectroscopic and chemical analyses.

Three new glycosides from Hylocereus undatus.

Three new glycosides, undatusides A-C (1-3), and 11 known compounds (4-14) were isolated from the flowers of Hylocereus undatus. Their structures were elucidated on the basis of spectroscopic data and chemical method.