Heavy metal pollution simplifies microbial networks and enhances modularity during tailings primary succession: divergent assembly dynamics for bacterial and fungal communities.

Microbial community play a fundamental role in primary succession of tailings ecosystems. However, the influence of heavy metal pollution on microbial interactions and assembly dynamics during this process remains poorly understood. In this study, we investigated bacterial and fungal communities in tailing soil and biological soil crusts (BSCs) undergoing primary succession under varying heavy metal pollution.

Gut microbiota contribute to high-altitude adaptation in tree sparrows.

Unlabelled: The intricate relationship between gut microbiota and various physiological functions in animals has emerged as a focal point in understanding host adaptability. Unlike the native birds of the Qinghai-Tibet Plateau (QTP), the tree sparrow () is believed to have colonized the plateau within the last few thousand years. Given the vast expanse and harsh conditions of the plateau, the role of gut microbiota in facilitating the tree sparrow's adaptation to this high-altitude habitat remains largely unexplored and holds significant scientific interest.

Occurrence and microbial remediation of polycyclic aromatic hydrocarbons and heavy metals pollution in soils.

The presence of soils contaminated with polycyclic aromatic hydrocarbons and heavy metals presents a widespread environmental challenge in industrial areas. Unlike single-pollutant systems, co-pollution by polycyclic aromatic hydrocarbons and heavy metals exhibits synergistic toxicity that weakens traditional remediation technologies. This review systematically examines microbial remediation strategies for such co-polluted soils, focusing on three levels of intervention: functional microorganisms, compost-based enhancement, and engineered microbial solutions.

Mechanosensitive Endothelial METTL7A Regulates Internal m G mRNA Methylation and Protects Against Atherosclerosis.

Background: Internal -methylguanosine (m G) is a recently identified chemical modification of mammalian mRNA and a component of the epitranscriptome. While the epitranscriptome plays a key role in regulating RNA metabolism and cellular function, the specific contribution of internal m G to cardiovascular health and disease remains unknown. Atherosclerosis preferentially develops at sites where disturbed blood flow activates endothelial cells, but whether internal m G and its regulatory machinery influence endothelial mechanotransduction and atherogenesis is unclear.

Determination of Carbazole Derivatives Associated With Photoelectric Materials in Sediments Using QuEChERS Pretreatment Coupled With Ultra-High Performance Liquid Chromatography-High Resolution Mass Spectrometry.

Carbazole derivatives (CZDs) are an important class of nitrogen-containing heterocyclic compounds which have been widely used in photoelectric materials, dyes, medicine, supramolecules and other fields. The ecological risks of CZDs released into environment during the production and product utilization have gradually attracted people's attention. However, for the lack of analytical methods of CZDs in environment, the levels of CZDs entering the environment remain unclear.

Metagenomic and metabolomic insights into microalgal-bacterial symbiosis under low carbon-to-nitrogen ratios.

Microalgal-bacterial symbiotic system (MBSS) is expected to efficiently treat ammonia nitrogen (NH-N) wastewater at low carbon-to-nitrogen ratio (CNR). In this study, MBSS was constructed and operated at CNRs of 0, 2, and 4 for 36 days, named as L (low CNR), M (medium CNR), and H (high CNR). Microbial interaction mechanisms were explored through metagenomics and non-targeted metabolomics.

Viral insights into the acidification of sulfidic mine tailings.

The acidification of sulfidic mine tailings, driven primarily by sulfur- and iron-oxidizing microorganisms, can lead to severe environmental pollution and imperil human health. The role of viruses in this process and its underlying mechanisms yet remain poorly understood. In this study, we recovered 623 species-level viral genomes and 322 prokaryotic genomes from seven metagenomes of mine tailings with pH values ranging from 7.

Evolution and characteristics of tetracycline resistance in .

Macrolide resistance in is becoming prevalent. Tetracyclines are an important alternative for patients with macrolide-resistant infections. Tetracycline-resistant has never been reported in clinical isolates or -induced strains.

NDUFS3 promotes proliferation via glucose metabolism reprogramming inducing AMPK phosphorylating PRPS1 to increase the purine nucleotide synthesis in melanoma.

NADH dehydrogenase [ubiquinone] iron-sulfur protein 3 (NDUFS3) is the core subunit of the respiratory chain complex I (CI). We found NDUFS3 were abnormally elevated in human melanoma and promoted melanoma proliferation. Furthermore, NDUFS3 could promote the oxidative phosphorylation (OXPHOS) and the pentose phosphate pathway (PPP), as well as attenuated glycolysis.

Divergent Cardiovascular Adaptations and Gene Regulation in High-Elevation Natives and Recent Colonizers of the Qinghai-Tibetan Plateau.

High elevation imposes unrelenting and unavoidable hypoxia on species inhabiting these environments, providing an excellent natural setting for studying convergent or divergent evolution. By integrating measures of phenotypic variation, gene regulation, and functional performance, our study demonstrates that recent colonizers of high-elevation environments exhibit fundamentally different cardiovascular changes compared to long-term natives of these environments. Through the studying of heart morphological phenotypes, we showed that recent colonizers exhibit signs of cardiac hypertrophy, reflected by increased relative heart mass (heart mass/body mass) and cardiomyocyte size compared to their low-elevation relatives.

Hierarchical contrastive learning for multi-label text classification.

Multi-label text classification presents a significant challenge within the field of text classification, particularly due to the hierarchical nature of labels, where labels are organized in a tree-like structure that captures parent-child and sibling relationships. This hierarchy reflects semantic dependencies among labels, with higher-level labels representing broader categories and lower-level labels capturing more specific distinctions. Traditional methods often fail to deeply understand and leverage this hierarchical structure, overlooking the subtle semantic differences and correlations that distinguish one label from another.

Rapid detection of CARDS toxin in clinical respiratory specimens by a loop-mediated isothermal amplification assay.

In light of the absence of rapid and precise diagnostic laboratory tests for the detection of (MP), a prominent etiological agent implicated in a range of respiratory infections, we developed and evaluated a rapid and straightforward loop-mediated isothermal amplification (LAMP) assay targeting the MP community-acquired respiratory distress syndrome toxin (CARDS TX) gene. The LAMP assay was performed at 65°C for a duration of 60 min, yielding a minimum detection concentration of MP CARDS TX at 0.4986 pg/μl.

Macrolide resistance in in adult patients.

is one of the most significant pathogens responsible for respiratory infections in humans. Macrolides are recommended as the first-line treatment for infection. The prevalence of macrolide-resistant has increased significantly in recent decades, particularly in China.

Hand kinematics, high-density sEMG comprising forearm and far-field potentials for motion intent recognition.

Surface electromyography (sEMG) signals reflect spinal motor neuron activities, and can be used as intuitive inputs for human-machine interaction (HMI) via movement intent recognition. The motor neuron potentials of far-field (wrist) and near-field (forearm) decomposed from high-density (HD) sEMG prospectively provide robust neural drives for HMI, which is a challenging research hotspot. However, there are no publicly available databases that include HD sEMG signals of forearm-wrist (FW) muscles, and hand kinematics (KIN).

ARNT-dependent HIF-2α signaling protects cardiac microvascular barrier integrity and heart function post-myocardial infarction.

Myocardial infarction (MI) compromises the cardiac microvascular endothelial barrier, increasing leakage and inflammation. HIF2α, predominantly expressed in cardiac endothelial cells during ischemia, has an unclear role in barrier function during MI. Here, we show that inducible, adult endothelial-specific deletion of Hif2α in mice leads to increased mortality, cardiac leakage, inflammation, reduced heart function, and adverse remodeling after MI.

Dihydroartemisinin suppresses COX-2-mediated apoptosis resistance in hepatocellular carcinoma under endoplasmic reticulum stress.

Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer, and its treatment still faces numerous challenges. Dihydroartemisinin (DHA), a derivative of artemisinin, has shown significant antitumor activity in preclinical research. Our study seeks to uncover the molecular mechanisms of DHA in HCC, potentially providing scientific evidence for its use as a supportive therapy in clinical settings.

Transcriptomic analysis of iPSC-derived endothelium reveals adaptations to high altitude hypoxia in energy metabolism and inflammation.

Tibetan adaptation to high-altitude hypoxia remains a classic example of Darwinian selection in humans. Amongst Tibetan populations, alleles in the EPAS1 gene - whose protein product, HIF-2α, is a central regulator of the hypoxia response - have repeatedly been shown to carry some of the strongest signals of positive selection in humans. However, selective sweep signals alone may only account for some of the phenotypes that differentiate high-altitude adapted populations from closely related lowlanders.

Neurocritical Care Rapid Response Team Providing Critical Care Support During Mechanical Thrombectomy of Emergent Large Vessel Occlusion Stroke.

Background:  Acute ischemic stroke with medium and large vessel occlusion is a leading cause of morbidity and mortality, in which timely intervention with mechanical thrombectomy (MT) is crucial for restoring cerebral blood flow and improving patient outcomes. Effective analgosedation and hemodynamic management during MT are critical to patient outcomes and typically managed by anesthesia. Because of inconsistent anesthesia support at our institution, we implemented a dedicated neurocritical care rapid response team (NCC-RRT) to manage these aspects of care.

Endothelial IGFBP6 suppresses vascular inflammation and atherosclerosis.

Beyond dyslipidemia, inflammation contributes to the development of atherosclerosis. However, intrinsic factors that counteract vascular inflammation and atherosclerosis remain scarce. Here we identify insulin-like growth factor binding protein 6 (IGFBP6) as a homeostasis-associated molecule that restrains endothelial inflammation and atherosclerosis.

Exploratory behavior is associated with the cognitive speed in male chestnut thrushes.

Intra-individual variation in cognitive abilities has been widely reported in animals. Recent studies have found that individual cognitive performance varies with personality traits in a wide range of animal taxa, with a speed-accuracy trade-off between cognition and personality traits. Few studies investigated whether these relationships change depending on different contexts.

Achieving enhanced diagnostic precision in endometrial lesion analysis through a data enhancement framework.

Objective: The aim of this study was to enhance the precision of categorization of endometrial lesions in ultrasound images via a data enhancement framework based on deep learning (DL), through addressing diagnostic accuracy challenges, contributing to future research.

Materials And Methods: Ultrasound image datasets from 734 patients across six hospitals were collected. A data enhancement framework, including image features cleaning and soften label, was devised and validated across multiple DL models, including ResNet50, DenseNet169, DenseNet201, and ViT-B.

Aging, brain-derived neurotrophic factor, and allergen-induced pulmonary responses in mice.

Asthma in the elderly is being recognized as more severe, resistant to standard therapies, and having greater morbidity. Therefore, it becomes important to understand the impact of aging-associated airway structure and functional changes toward pathogenesis of asthma in the elderly. Here, airway smooth muscle plays important roles in airway hyperreactivity and structural remodeling.