Interaction between imidacloprid residues in maize rhizospheric soil and soil nematode community.

Although imidacloprid has been shown to present potential risks to non-target invertebrates and vertebrates, researches exploring this risk from the perspective of the underground ecosystem remains incomplete. In this study, we determined that the presence of imidacloprid significantly reduced the abundance and diversity of soil nematodes in maize rhizospheric soil. Furthermore, imidacloprid also exerted negative effects on the body length, reproduction, locomotion, lipid accumulation, lipofuscin accumulation, and acetylcholinesterase activity in the model organism Caenorhabditis elegans.

Qualitative and Quantitative Analyses of 1-Aminocyclopropane-1-carboxylic Acid Concentrations in Plants Organs Using Phenyl Isothiocyanate Derivatization.

1-Aminocyclopropane-1-carboxylic acid (ACC) is a direct precursor of phytohormone ethylene. We used a phenyl isothiocyanate (PITC) derivatization modification method combined with spectrographic analysis to isolate and identify three products of the derivatization reactions of ACC and PITC. The MRM mode of UPLC-MS/MS was used to establish the analysis of 6-phenyl-5-thioxo-4,6-diazaspiro[2.

Cardiotoxicity of polystyrene nanoplastics and associated mechanism of myocardial cell injury in mice.

Aims: Nanoplastics (NPs) are emerging organic pollutants generated by plastic degradation and are ubiquitous in the environment. They can be accumulated through the food webs and enter the human body through dietary intake, posing health risks. The main target organs of NP accumulation are the lungs, liver, heart, and kidneys.

Cytotoxic activity of phenolic compounds in Bairui Granules obtained from the Chinese medicinal plant .

The Chinese medicinal plant Turcz. is the only plant used in the manufacture of Bairui Granules. However, to date, there has been very little research into the cytotoxic activity of active substances derived from Bairui Granules.

Impact of infection on semen parameters and fertilization outcomes in infertile men.

Introduction: (UU) is a common pathogen associated with genital tract infections in infertile males. However, its impact on semen quality, embryo development, and fertilization (IVF) outcomes remains underexplored. This study aims to evaluate the effect of male UU infection on semen parameters, embryo development, pregnancy outcomes, and neonatal health in infertile couples.

From Hypoxia to Oxidative Stress: Antioxidants' Role to Reduce Male Reproductive Damage.

Hypoxia is one of the main reasons causing male reproductive damage for people living in high altitude. Pathological evidences have been presented both in humans and animal models. Spermatogenesis disruption, worse sperm parameters, hormone disorder and erectile dysfunction are emblematic of male reproductive impairments brought by hypoxia.

Comparison of the Efficacy and Safety of Direct Oral Anticoagulants and Warfarin in Cirrhotic Patients: A Systematic Review and Meta-Analysis.

Objective: Currently, there is limited evidence regarding the use of direct oral anticoagulants (DOACs) for patients with liver cirrhosis (LC). We performed a meta-analysis to compare the efficacy and safety of DOACs versus warfarin in this population.

Methods: We searched PubMed, Cochrane Library, Web of Science, Embase and Scopus databases from inception to August 2024.

Pt-Driven Stable and Metastable Ternary Compounds with Tunable Partial Flat Bands in Immiscible Si-Sn System.

A combined machine learning approach and first-principles calculations are employed to efficiently explore energetically favorable ternary compounds involving Pt and an immiscible Si-Sn pair of elements. We predict two stable Pt-Si-Sn ternary compounds (PtSiSn and PtSiSn) and reproduce the experimentally synthesized PtSiSn. The crystal structures of PtSiSn and PtSiSn are composed of a SiPt cube and SnPt cuboctahedron.

Associations of Ureaplasma urealyticum infection with male infertility and intrauterine insemination outcomes.

Ureaplasma urealyticum (UU) is one of the most commonly occurring pathogens associated with genital tract infections in infertile males, but the impact of seminal UU infection in semen on intrauterine insemination (IUI) outcomes is poorly understood. We collected data from 245 infertile couples who underwent IUI at The First Affiliated Hospital of USTC (Hefei, China) between January 2021 and January 2023. The subjects were classified into two groups according to their UU infection status: the UU-positive group and the UU-negative group.

The Diterpene Isopimaric Acid Modulates the Phytohormone Pathway to Promote L. Rice Seedling Growth.

Many plant secondary metabolites are active and important in the regulation of plant growth. Certain plant-derived diterpenes are known to promote plant growth, but the pathways by which this promotion occurs are still unknown. Activity screening revealed that the plant-derived diterpene isopimaric acid exhibits growth-promoting activity in rice ( L.

Safety assessment of coronary arteries during left bundle branch area pacing.

Background: This study aimed to assess the safety of left bundle branch area pacing (LBBAP) by measuring the distance from the tip of the electrode to the nearby coronary artery with a nine-partition grid method.

Methods: From January 2019 to October 2020, patients who underwent LBBAP and postoperative coronary angiography in the Second Affiliated Hospital of Nanchang University were included in the study. The patients' fluoroscopic images of LBBAP and coronary angiography were collected and analyzed.

The Chemical Ecology of Plant Natural Products.

Plants are excellent chemists with an impressive capability of biosynthesizing a large variety of natural products (also known as secondary or specialized metabolites) to resist various biotic and abiotic stresses. In this chapter, 989 plant natural products and their ecological functions in plant-herbivore, plant-microorganism, and plant-plant interactions are reviewed. These compounds include terpenoids, phenols, alkaloids, and other structural types.

Adaptation of to phenolic and alkaloid responsive metabolites in maize B73.

The adaptation of pathogenic fungi to plant-specialized metabolites is necessary for their survival and reproduction. The biotrophic fungus can cause maize smut and produce tumors in maize (), resulting in reduced maize yield and significant economic losses. Qualitative analysis using UPLC-MS/MS revealed that the infection of maize variety B73 with resulted in increased levels of phytohormones, phenolics, and alkaloids in maize seedling tissues.

Two-dimensional phosphorus carbides (β-PC) as highly efficient metal-free electrocatalysts for lithium-sulfur batteries: a first-principles study.

Li-S batteries are considered as the next-generation batteries due to their exceptional theoretical capacity. However, their practical application is hampered by the shuttling effects of lithium polysulfides (LiPSs) and the sluggish LiS decomposition, particularly the slow conversion from LiS to LiS. Addressing these challenges, the quest for effective catalysts that can accelerate the conversion of LiPSs and enhance the performance of Li-S batteries is crucial.

Four New Furofuran Lignans from Inhibit the Accumulation of Molting Hormones in Armyworm.

Furofuran lignans have been identified as the main substances responsible for the biological activities of the plant genus . Here, four new phrymarolin-type leptolignans A-D (-) and eight previously known lignans were isolated from . Of these, nine exhibited significant antifeedant activity against armyworm () through a dual-choice bioassay, with the EC values ranging from 0.

Long-Term Stimulation of the Left Dorsal Branch of the Thoracic Nerve Improves Ventricular Electrical Remodeling in a Canine Model of Chronic Myocardial Infarction.

Purpose: To evaluate the ventricular electrophysiologic effects of long-term stimulation of the left dorsal branch of thoracic nerve (LDTN) derived from the left stellate ganglion (LSG) in a canine model of chronic myocardial infarction (MI).

Methods: Seventeen adult male beagles were randomly divided into three groups: the sham group (sham operated, n = 6), the MI group (n = 6), and the MI + LDTN group (MI plus LDTN stimulation, n = 5). The canine model of chronic MI was induced by the occlusion of the left anterior descending artery (LADO).

Polymethoxylated flavones from the leaves of have fungal-promoting and antibacterial activities during the production of broad bean koji.

Broad bean paste is a popular condiment in Asian countries. Leaves of Linn. were used extensively in China during the koji-making of broad bean paste.

Nematicidal Activity of 20-Deoxyingenol-3-angelate from Latex Through Protein Kinase C Isotype TPA-1.

The latex of and its major component 20-deoxyingenol-3-angelate (DI3A) displayed significant nematicidal activity against and . DI3A treatment inhibited the growth and development of nematodes and caused significantly negative effects on locomotion behavior, reproduction, and accumulation of reactive oxygen species. Transcriptome analysis indicated that differential expression genes in DI3A-treated were mainly associated with the metabolism, growth, and development process, which were further confirmed by RT-qPCR experiments.

A novel contact force sensing pulsed field ablation catheter in a porcine model.

Background: Pulsed field ablation (PFA) has emerged as a novel non-thermal modality with highly myocardium-specific. However, the PFA catheter based on contact force (CF)-sensing has not been reported. The study aimed to evaluate the efficacy and safety of a novel CF-sensing PFA catheter.

Chemical Structure Diversity and Extensive Biological Functions of Specialized Metabolites in Rice.

Rice ( L.) is thought to have been domesticated many times independently in China and India, and many modern cultivars are available. All rice tissues are rich in specialized metabolites (SPMs).

Esterification with a Long-Chain Fatty Acid Elevates the Exposure Toxicity of Tigliane Diterpenoids from Roots against Nematodes.

In this study, two tigliane diterpenoids, 12-deoxyphorbol-13-hexadecanoate and 12-deoxyphorbol-13-acetate (prostratin), were identified from the methanol extract of the roots of and were found to have the ability to significantly reduce the survival of . It was determined that exposure to these two compounds had toxic effects on the growth, reproduction, locomotion behavior, and accumulation of lipids and lipofuscin of the nematodes. Moreover, the transcription levels of the genes associated with lipid accumulation, apoptosis, insulin, and nuclear hormone synthesis in were significantly influenced.

Caterpillars Detoxify Diterpenoid from by the Molting Hormone Gene .

Herbivorous insects are well known for detoxifying a broad range of the defense compounds produced by the plants that they feed on, but knowledge of the mechanisms of detoxification is still very limited. Here, we describe a system in which two species of lepidopteran caterpillars metabolize an abietane diterpene from the plants of Diels to an oxygenated derivative that is less active biologically. We found that this transformation could be catalyzed by a cytochrome P450 enzyme in caterpillars, which are associated with molting.