Explore the vast range of titles available.

Given the significance of safeners and their potential to emit harmful substances into the environment, it is essential to develop suitable analytical methods for detecting these compounds. This study presents a molecularly imprinted electrochemical sensor designed for the sensitive and rapid detection of fenclorim (FM), a type of safener. Titanium carbide nanomaterials (Ti3C2Tx) were electrochemically deposited onto the glassy carbon electrode (GCE) to enhance electron transfer. Subsequently, molecularly imprinted polymers were fabricated through the electropolymerization of catechol in the presence of FM. The electrochemical behavior of each modified electrode was investigated using differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). Under optimized experimental conditions, the MIP/Ti3C2Tx/GCE sensor demonstrated a linear relationship with FM concentration ranging from 5 to 300 nM, with a limit of detection (LOD) of 1.56 nM (S/N = 3). Additionally, the sensor demonstrated excellent selectivity, stability, and reproducibility for FM detection and was successfully utilized for quantifying FM in real water samples.

Rural human settlement improvement (RHSI) is the basis for enhancing rural households’ life quality and promoting their well-being. Studying the impact of the livelihood capital level and structure on rural households’ payment willingness for RHSI will help to clarify the effective focus for implementing a payment system for rural environmental governance, which is of great significance for improving rural human settlements and promoting comprehensive rural revitalization. This study reveals the influence mechanism of the livelihood capital level and structure on rural households’ willingness to pay (WTP) for RHSI. According to the survey data of rural households in Hubei Province, China, the level and structure of rural households’ livelihood capital and their WTP for RHSI are analyzed using the entropy value method and the contingent valuation method. The effects of the livelihood capital level and structure on rural households’ WTP for RHSI are tested using the Probit and Tobit models. The results show significant differences in the level and structure of rural households’ livelihood capital. More than half of the rural households have a payment inclination for RHSI, but the distribution of the willingness payment amounts shows a clear polarization, with the average payment amount ranging from CNY 14.48 to 28.32 per month. Both the total livelihood capital level and classification levels (natural capital, human capital, financial capital and social capital) significantly positively affect the rural households’ WTP. In the livelihood capital structure, both the natural-capital-dominant type and financial-capital-dominant type significantly positively affect the rural households’ WTP, and the human-capital-dominant type significantly positively affects the rural households’ willingness payment amount. Accordingly, this study proposes policy recommendations for the multi-dimensional improvement of rural households’ livelihood capital and the optimization of the livelihood capital structure allocation.

IntroductionWhile recent research suggests that acupuncture may offer benefits to individuals with diarrhoea-predominant irritable bowel syndrome (IBS-D), high-quality studies are scarce in this area. We intend to investigate the efficacy and safety of individualised sensitised acupuncture in IBS-D.Methods and analysisThe study is designed as a large-scale, multicentre, two-arm, randomised clinical trial involving 326 patients diagnosed with IBS-D. Participants will be randomly allocated into the acupuncture or the sham acupuncture group in a 1:1 ratio. Both groups will undergo 15 sessions over 6 weeks. The primary outcome is the effective response rate at week 6, with secondary outcomes including the effective response rate at alternative time points, percentage of patients with 3 or more effective response weeks throughout the treatment duration, IBS Symptom Severity Scale, IBS-Quality of Life, Patient Health Questionnaire-9, Adequate Relief of IBS Symptoms Scale, Extraintestinal Symptoms Scale and other symptoms.Ethics and disseminationThe study protocol has been approved by the Medical Ethics Committee of Beijing University of Chinese Medicine (project number: 2023BZYLL0102) and the ethics committees of other participating institutions. Each participant will be required to provide written consent before enrolment. The study results will be submitted for publication in a peer-reviewed journal.Trial registration numberChiCTR2300078321.

The molecular heterogeneity and distinct features of HER2‐low breast cancer are poorly understood, limiting their precise management. To address this issue, longitudinal multiomic profiling of HER2‐low breast cancer is performed, including genomics, transcriptomics, proteomics, lactylomics, and phosphoproteomics, using 250 well‐characterized samples, and identified three proteomic subtypes: PS1 (estrogen response signaling enriched), PS2 (angiogenesis enriched), and PS3 (proliferation enriched and HER2‐high like). These three proteomic subtypes have distinct features and potential therapeutic strategies, namely, endocrine therapy, antiangiogenic therapy, and anti‐HER2 therapy, and are validated in external datasets and PDO models. In addition, a detailed description of the genomic characteristics and a map of the lactate modification landscape of HER2‐low breast cancer are provided. This research provides complementary information, reveals the molecular characteristics of HER2‐low breast cancer, and suggests potential precise therapeutic strategies for patients with this type of cancer.

Background Epidemiological studies have confirmed that abnormal circadian rhythms are associated with tumorigenesis in breast cancer. However, few studies have investigated the pathological roles of rhythm genes in breast cancer progression. In this study, we aimed to evaluate the aberrant expression of 32 rhythm genes in breast cancer and detect the pathological roles and molecular mechanisms of the altered rhythm gene in regulating the progression of triple negative breast cancer (TNBC). Methods The aberrant expression of rhythm genes in breast cancer was screened by searching the GEPIA database and validated by using qRT-PCR and immunohistochemistry staining. Bioinformatics analysis combined with luciferase reporter experiment and chromatinimmunopercitation (ChIP) were used to investigate the molecular mechanism about aberrant expression of identified rhythm gene in breast cancer. The pathological roles of identified rhythm gene in TNBC progression was evaluated by colony formation assay, wound healing experiment, transwell assay, subcutaneous tumor formation and the mouse tail vein injection model through gain-of-function and loss-of-function strategies respectively. mRNA array, bioinformatics analysis, luciferase reporter experiment, ChIP and immunoflurescence assay were employed to investigate the key molecules and signaling pathways by which the identified rhythm gene regulating TNBC progression. Results We identified that nuclear factor interleukin 3 regulated (NFIL3) expression is significantly altered in TNBC compared with both normal breast tissues and other subtypes of breast cancer. We found that NFIL3 inhibits its own transcription, and thus, downregulated NFIL3 mRNA indicates high expression of NFIL3 protein in breast cancer. We demonstrated that NFIL3 promotes the proliferation and metastasis of TNBC cells in vitro and in vivo, and higher expression of NFIL3 is associated with poor prognosis of patients with TNBC. We further demonstrated that NFIL3 enhances the activity of NF-κB signaling. Mechanistically, we revealed that NFIL3 directly suppresses the transcription of NFKBIA, which blocks the activation of NF-κB and inhibits the progression of TNBC cells in vitro and in vivo. Moreover, we showed that enhancing NF-κB activity by repressing NFKBIA largely mimics the oncogenic effect of NFIL3 in TNBC, and anti-inflammatory strategies targeting NF-κB activity block the oncogenic roles of NFIL3 in TNBC. Conclusion NFIL3 promotes the progression of TNBC by suppressing NFKBIA transcription and then enhancing NF-κB signaling-mediated cancer-associated inflammation. This study may provide a new target for TNBC prevention and therapy. Graphical Abstract

Given the significance of safeners and their potential to emit harmful substances into the environment, it is essential to develop suitable analytical methods for detecting these compounds. This study presents a molecularly imprinted electrochemical sensor designed for the sensitive and rapid detection of fenclorim (FM), a type of safener. Titanium carbide nanomaterials (Ti[sub.3]C[sub.2]T[sub.x]) were electrochemically deposited onto the glassy carbon electrode (GCE) to enhance electron transfer. Subsequently, molecularly imprinted polymers were fabricated through the electropolymerization of catechol in the presence of FM. The electrochemical behavior of each modified electrode was investigated using differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). Under optimized experimental conditions, the MIP/Ti[sub.3]C[sub.2]T[sub.x]/GCE sensor demonstrated a linear relationship with FM concentration ranging from 5 to 300 nM, with a limit of detection (LOD) of 1.56 nM (S/N = 3). Additionally, the sensor demonstrated excellent selectivity, stability, and reproducibility for FM detection and was successfully utilized for quantifying FM in real water samples.

Breast cancer stands as a formidable malignant tumor posing a severe threat to women’s health globally, characterized by alarmingly high rates of morbidity and mortality. Quercetin has demonstrated a substantial impact in restraining the malignant behaviors exhibited by breast cancer cells. Meanwhile, it has been uncovered that both deubiquitinating enzyme ubiquitin specific peptidase 9 X-linked (USP9X) and protein inhibitor of activated STAT 4 (PIAS4) are implicated in the progression of breast cancer. Nevertheless, thus far, no pertinent research has elucidated whether there exists an inherent association among quercetin, USP9X, and PIAS4. In this study, the viability, proliferation, and apoptosis of breast cancer cells were measured by MTT, EdU, and flow cytometry. Then, Caspase 3 activity, ROS, MDA, iron and Fe2 + levels, and mitochondrial membrane potential were evaluated with the corresponding kits. Meanwhile, the mRNA and protein levels of USP9X and PIAS4 were determined by qRT-PCR and western blot. Besides, molecular docking was applied to visualize the binding of quercetin and USP9X. The association of USP9X with PIAS4 was predicted by bioinformatics analysis. Further, the ubiquitination level of PIAS4 was measured by IP and IB techniques. Firstly, quercetin treatment could effectively prevent the proliferation of breast cancer cells and promote apoptosis, oxidative stress and ferroptosis. USP9X was highly expressed in breast cancer and silencing it produced similar results as quercetin treatment. Molecular docking verified that quercetin could bind to USP9X. Meanwhile, reversion assay confirmed that quercetin inhibited the malignant behavior of breast cancer cells by binding to USP9X. At this time, it was also found that PIAS4 expression was positively correlated with USP9X, and USP9X was able to mediate the deubiquitination of PIAS4, further aggravating breast cancer. This study elucidated the mechanism of action of quercetin: by binding to USP9X, it diminished USP9X-mediated deubiquitination of PIAS4, consequently blocking the proliferation of breast cancer cells and stimulating oxidative stress and ferroptosis, ultimately achieving a therapeutic effect against breast cancer.

Background: Breast cancer stands as a formidable malignant tumor posing a severe threat to women's health globally, characterized by alarmingly high rates of morbidity and mortality. Quercetin has demonstrated a substantial impact in restraining the malignant behaviors ex- hibited by breast cancer cells. Meanwhile, it has been uncovered that both deubiquitinating enzyme ubiquitin specific peptidase 9 X-linked (USP9X) and protein inhibitor of activated STAT 4 (PIAS4) are implicated in the progression of breast cancer. Nevertheless, thus far, no pertinent research has elucidated whether there exists an inherent association among quercetin, USP9X, and PIAS4. Methods: In this study, the viability, proliferation, and apoptosis of breast cancer cells were measured by MTT, EdU, and flow cytometry. Then, Caspase 3 activity, ROS, MDA, iron and Fe + levels, and mitochondrial membrane potential were evaluated with the corresponding kits. Meanwhile, the mRNA and protein levels of USP9X and PIAS4 were determined by qRT-PCR and western blot. Besides, molecular docking was applied to visualize the binding of quercetin and USP9X. The association of USP9X with PIAS4 was predicted by bioinformatics analysis. Further, the ubiquitination level of PIAS4 was measured by IP and IB techniques. Results: Firstly, quercetin treatment could effectively prevent the proliferation of breast cancer cells and promote apoptosis, oxidative stress and ferroptosis. USP9X was highly expressed in breast cancer and silencing it produced similar results as quercetin treatment. Molecular docking verified that quercetin could bind to USP9X. Meanwhile, reversion assay confirmed that quer- cetin inhibited the malignant behavior of breast cancer cells by binding to USP9X. At this time, it was also found that PIAS4 expression was positively correlated with USP9X, and USP9X was able to mediate the deubiquitination of PIAS4, further aggravating breast cancer. Conclusion: This study elucidated the mechanism of action of quercetin: by binding to USP9X, it diminished USP9X-mediated deubiquitination of PIAS4, consequently blocking the proliferation of breast cancer cells and stimulating oxidative stress and ferroptosis, ultimately achieving a therapeutic effect against breast cancer.

Aberrant alternative splicing (AS) events are frequently observed in lung cancer, which can be attributed to aberrant gene AS, alterations in splicing regulatory factors, or changes in splicing regulatory mechanisms. Consequently, the dysregulation of alternative RNA splicing is the fundamental cause of lung cancer. In this review, we have summarized the pivotal role of AS in the development, progression, invasion, metastasis, angiogenesis, and drug resistance of lung cancer. Ultimately, this review emphasizes the potential of AS as biomarkers in lung cancer prognosis and diagnosis, and introduces some applications of AS isoform in the treatment of lung cancer. The comprehension of the AS may provide a glimmer of hope for the eradication of lung cancer.

Given the significance of safeners and their potential to emit harmful substances into the environment, it is essential to develop suitable analytical methods for detecting these compounds. This study presents a molecularly imprinted electrochemical sensor designed for the sensitive and rapid detection of fenclorim (FM), a type of safener. Titanium carbide nanomaterials (Ti C T ) were electrochemically deposited onto the glassy carbon electrode (GCE) to enhance electron transfer. Subsequently, molecularly imprinted polymers were fabricated through the electropolymerization of catechol in the presence of FM. The electrochemical behavior of each modified electrode was investigated using differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). Under optimized experimental conditions, the MIP/Ti C T /GCE sensor demonstrated a linear relationship with FM concentration ranging from 5 to 300 nM, with a limit of detection (LOD) of 1.56 nM (S/N = 3). Additionally, the sensor demonstrated excellent selectivity, stability, and reproducibility for FM detection and was successfully utilized for quantifying FM in real water samples.