Knockdown of LncRNA MEG3 promotes damage of vascular endothelial cells induced by vibration.

Hand-arm vibration syndrome (HAVS) is caused by long-term exposure to hand-transmitted vibration (HTV), and its pathogenesis has not been elucidated fully. We explored the molecular mechanism of HAVS and provided clues and a theoretical basis for the early prevention and treatment of HAVS. After vibration, samples were collected from the plasma of human workers, plasma of rat tails, and human umbilical vein endothelial cells (HUVECs).

Capturing the Progressive Conformational Evolutions of Sterically-Congested Dihydrophenazines via Crystallization.

To gain a deeper understanding of the sequential multistep excited-state structural evolutions of N,N'-diphenyl-dihydrodibenzo[a,c]phenazine (DPAC) luminophores, we strategically freeze distinct conformations by crystallization, allowing to capture the progressive conformational transformations within a DPAC-based framework by utilizing single-crystal X-ray diffractometry. Our focus lies in the innovative modification of DPAC via the synthesis of cyano (CN)-substituted derivatives DPAC-nCN (n=1-4, with n indicating the number of CN groups). The incorporation of electron-withdrawing CN groups modulates electron delocalization and lowers energy barriers, facilitating access to conformational polymorphism within the crystals.

DNA-encoded dynamic hydrogels for 3D bioprinted cartilage organoids.

Articular cartilage, composed of chondrocytes within a dynamic viscoelastic matrix, has limited self-repair capacity, posing a significant challenge for regeneration. Constructing high-fidelity cartilage organoids through three-dimensional (3D) bioprinting to replicate the structure and physiological functions of cartilage is crucial for regenerative medicine, drug screening, and disease modeling. However, commonly used matrix bioinks lack reversible cross-linking and precise controllability, hindering dynamic cellular regulation.

A flexible polycyclic chemosensor for simultaneous discernment of Ni and Cd depending on distinct coordination modes.

Herein, we present a paradigm of a flexible molecular system for simultaneous discernment of Ni and Cd, depending on distinct chemical coordination manners. By incorporating two functional pyridine groups at different positions on the flexible DPAC framework (9,14-diphenyl-9,14-Dihydrodibenzo [a,c]phenazine), two derivatives are prepared as 27Py-DPAC and 36Py-DPAC. The results show that 27Py-DPAC can chemically coordinate with Ni (intermolecular coordination) and Cd (intramolecular coordination), generating fluorescence turn-off and -on behaviors, respectively.

Piezo1 promotes vibration-induced vascular smooth muscle injury by regulating the NF-κB/p65 axis.

Vibration induced damage to the peripheral circulatory system is thought to be an early stage of hand-arm vibration syndrome (HAVS) caused by occupational exposure to hand-transmitted vibration (HTV). This study investigated the mechanisms underlying vibration-induced vascular injury, focusing on the role of Piezo1, a mechanosensitive channel, and its association with the NF-κB/p65 signaling pathway. We demonstrated that vibration exposure leads to Piezo1-mediated upregulation of angiogenic chemokines, including CCL2, CCL5, CXCL1, CXCL2, and CXCL10, through the NF-κB/p65 pathway.

Catalytic effects of multiple heterointerfaces on the hydrogen storage properties of magnesium hydride.

The application and further industrialization of magnesium hydride (MgH) are restricted by its intrinsically high de-hydrogenation temperature and dragged kinetics though it is believed as one of the most encouraging solid-state hydrogen storage materials with considerable capacity. Herein, a bimetallic layered MXene VNbC, which was mixed with MgH by high energy ball milling, was obtained by etching compact layered MAX VNbAlC with HF. The beginning de-hydrogenation temperature of the as-prepared MgH blended with 10 wt% VNbC (denoted as MgH-10 VNbC) composites was excitingly 170 °C and it exhibited faster kinetics and excellent cycling stability.

Bioactive materials from berberine-treated human bone marrow mesenchymal stem cells accelerate tooth extraction socket healing through the jaw vascular unit.

Delayed tooth extraction socket (TES) healing can cause failure of subsequent oral implantation and increase socioeconomic burden on patients. Excessive amounts of M1 macrophages, apoptotic neutrophils (ANs), and neutrophil extracellular traps (NETs) impair alveolar bone regeneration during TES healing. In the present study, we first discovered that conditioned medium (CM) collected from berberine-treated human bone marrow mesenchymal stem cells (BBR-HB-CM) accelerated TES healing.

PKCα regulates the secretion of PDL1-carrying small extracellular vesicles in a p53-dependent manner.

Small extracellular vesicles (sEVs), carrying PD-L1, have been implicated in immune evasion and tumor progression. However, understanding how PD-L1 sEVs are secreted still needs to be improved. We found that the secretion dynamics of PD-L1 sEVs is similar to that of other sEVs.

Single-Nucleus RNA Sequencing Reveals Cellular Transcriptome Features at Different Growth Stages in Porcine Skeletal Muscle.

Porcine latissimus dorsi muscle (LDM) is a crucial source of pork products. Meat quality indicators, such as the proportion of muscle fibers and intramuscular fat (IMF) deposition, vary during the growth and development of pigs. Numerous studies have highlighted the heterogeneous nature of skeletal muscle, with phenotypic differences reflecting variations in cellular composition and transcriptional profiles.

Engineering Dual Active Sites and Defect Structure in Nanozymes to Reprogram Jawbone Microenvironment for Osteoradionecrosis Therapy.

Four to eight percent of patients with head and neck cancer will develop osteoradionecrosis of the jaw (ORNJ) after radiotherapy. Various radiation-induced tissue injuries are associated with reactive oxygen and nitrogen species (RONS) overproduction. Herein, Fe doping is used in VO (Fe-VO) nanozymes with multienzyme activities for ORNJ treatment via RONS scavenging.

Corrigendum: Icariin promotes functional recovery in rats after spinal cord injury by inhibiting YAP and regulating PPM1B ubiquitination to inhibiting the activation of reactive astrocytes.

[This corrects the article DOI: 10.3389/fphar.2024.

The transcription factor FcMYB3 responds to Co γ-ray irradiation of axillary buds in L. by activating the expression of the NADPH oxidase, .

Plant irradiation has been used to induce genetic variation in crop germplasm. However, the underlying mechanisms of plant responses to ionizing radiation stress are still unclear. In plants, reactive oxygen species (ROS) are produced with abiotic stress.

Molecular Heterogeneity and Immune Infiltration Drive Clinical Outcomes in Upper Tract Urothelial Carcinoma.

Background And Objective: Molecular classification of upper tract urothelial carcinoma (UTUC) can provide insight into divergent clinical outcomes and provide a biological rationale for clinical decision-making. As such, we performed multi-omic analysis of UTUC tumors to identify molecular features associated with disease recurrence and response to immune checkpoint blockade (ICB).

Methods: Targeted DNA and whole transcriptome RNA sequencing was performed on 100 UTUC tumors collected from patients undergoing nephroureterectomy.

A novel integrated testing strategy (ITS) for evaluating acute fish toxicity with new approach methodologies (NAMs).

Acute fish toxicity (AFT) tests are performed in aquatic risk assessments of chemical compounds globally. However, the specific endpoint of in vivo AFT is based on the lethal concentration 50 (LC), which is a serious challenge in terms of animal welfare. To support the 3Rs principle of replacing, reducing, and refining use of animals, integrated testing strategies (ITS) have recently been developed for environmental risk assessment.

Icariin promotes functional recovery in rats after spinal cord injury by inhibiting YAP and regulating PPM1B ubiquitination to inhibiting the activation of reactive astrocytes.

Objective: The limited ability to regenerate axons after spinal cord injury (SCI) is influenced by factors such as astrocyte activation, reactive proliferation, and glial scar formation. The TGF-β/Smad (transforming growth factor-β/mothers against decapentaplegic homolog) pathway, associated with astrocytic scarring, plays a crucial role in recovery post-injury. This study aims to investigate how icariin (ICA) interacts with reactive astrocytes in the treatment of spinal cord injury.

Histone H4K12 lactylation promotes malignancy progression in triple-negative breast cancer through SLFN5 downregulation.

Lactylation, a newly identified post-translational modification, is uncertain in its implication in triple-negative breast cancer (TNBC). In this study, we analyzed 60 TNBC samples using immunohistochemical staining and revealed elevated levels of pan-lactylated proteins and specific histone H4K12 lactylation in tumor tissues, correlating with TNBC progression. Lactate exposure in TNBC cell lines significantly induced lysine lactylation at the H4K12 site, leading to alterations in gene profiles and reduced apoptosis.

Evaluation of the nutritional quality of yeast protein in comparison to animal and plant proteins using growing rats and INFOGEST model.

Yeast, identified as a microorganism, boasts a considerable protein content, positioning yeast protein as a highly promising alternative in the quest for sustainable protein sources. The primary aim of this study is to evaluate the protein quality of yeast protein and compare it with animal proteins (whey concentrate/isolate proteins) and plant proteins (soy, wheat, pea proteins). Notably, yeast protein exhibits the highest ratio of indispensable/dispensable amino acids (IAAs/DAAs, 0.

A skin-interfaced microfluidic platform supports dynamic sweat biochemical analysis during human exercise.

Blood lactate concentration is an established circulating biomarker for measuring muscle acidity and can be evaluated for monitoring endurance, training routines, or athletic performance. Sweat is an alternative biofluid that may serve similar purposes and offers the advantage of noninvasive collection and continuous monitoring. The relationship between blood lactate and dynamic sweat biochemistry for wearable engineering applications in physiological fitness remains poorly defined.

berry extract improves female fertility against aging-related oxidative stress in the ovary.

Reproductive aging in female mammals is characterized by ovarian senescence, leading to a significant fertility decline. berry, or goji berry, is a food and medicine that appears in various formulas for treating infertility in traditional Chinese medicine. We investigated the function of an aqueous extract of berry (LB extract) to improve health status, fertility, and offspring development during female aging.

UAMC-3203 inhibits ferroptosis and promotes functional recovery in rats with spinal cord injury.

Spinal cord injury (SCI) results in irreversible neurological impairment. After SCI, Ferritinophagy-induced free iron released from ferritin can lead to extensive lipid peroxidation and aggravate neurological damage. NRF2/HO-1 pathway is to endow cells with a protective effect against oxidative stress, and it plays an important role in the transcriptional activation of a series of antioxidant and detoxification genes.

NPCC4: Climate change and New York City's flood risk.

This chapter of the New York City Panel on Climate Change 4 (NPCC4) report provides a comprehensive description of the different types of flood hazards (pluvial, fluvial, coastal, groundwater, and compound) facing New York City and provides climatological context that can be utilized, along with climate change projections, to support flood risk management (FRM). Previous NPCC reports documented coastal flood hazards and presented trends in historical and future precipitation and sea level but did not comprehensively assess all the city's flood hazards. Previous NPCC reports also discussed the implications of floods on infrastructure and the city's residents but did not review the impacts of flooding on the city's natural and nature-based systems (NNBSs).

Stable Radicals in Dihydrophenazine Derivatives-Doped Epoxy Resin for High Photothermal Conversion.

Organic radicals exhibit great potential in photothermal applications, however, their innate high reactivity with oxygen renders the preparation of stable organic radicals highly challenging. In this work, a series of co-doped radical polymers ares prepared by doping dihydrophenazine derivatives (DPPs) into the epoxy resin matrix. DPPs can form radical species through the electron transfer process, which are further stabilized by the complex 3D network structure of epoxy resin.

Dynamics of single-nuclei transcriptomic profiling of adipose tissue from diverse anatomical locations during mouse aging process.

Adipose tissue plays critical roles in an individual's aging process. In this research, we use single-nucleus RNA sequencing to create highly detailed transcriptional maps of subcutaneous adipose tissue and visceral adipose tissue in young and aged mice. We comprehensively identify the various cell types within the white adipose tissue of mice, our study has elucidated seven distinct cell types within this tissue.

Association of vitamin D intake during pregnancy with small vulnerable newborns: a population-based cohort study.

Maternal vitamin D deficiency is common worldwide and has a significant impact on newborns. However, whether vitamin D intake during pregnancy is related to small vulnerable newborns (SVN) has not been confirmed. Thus, we sought to examine the relationship between maternal vitamin D intake, including vitamin D supplementation and dietary intake, and the risk of SVN.