1.Elevated SLC3A2 Expression Promotes the Progression of Gliomas and Enhances Ferroptosis Resistance through the AKT/NRF2/GPX4 Axis
Yuqian ZHENG ; Shaolong ZHOU ; Yiran TAO ; Zimin SHI ; Xiang LI ; Xudong FU ; Jian MA ; Weihua HU ; Wulong LIANG ; Xinjun WANG
Cancer Research and Treatment 2026;58(1):71-94
Purpose:
The aim of this study is to determine the impact of solute carrier family 3 member 2 (SLC3A2) on the malignant phenotype of gliomas and its role in regulating ferroptosis sensitivity.
Materials and Methods:
The malignant phenotype of glioma was assessed by cell proliferation assay, colony formation assay, EdU assay, wound healing, and Transwell experiments. We further validated the impact of reduced SLC3A2 expression on the sensitivity to ferroptosis in glioma cells through Cell Counting Kit-8 assays, flow cytometry, western blotting, and transmission electron microscopy. Western blot was used to explore how SLC3A2 affects glioma sensitivity to ferroptosis through the AKT/NF-E2-related factor 2 (NRF2)/glutathione peroxidase 4 (GPX4) axis. By establishing a subcutaneous xenograft tumor model in BALB/c-nude mice, we investigated the growth of tumors following the knockout of SLC3A2 in glioma cells.
Results:
Downregulation of SLC3A2 suppressed the malignant phenotype of glioma by blocking the cell cycle and epithelial-mesenchymal transition processes. On the other hand, loss of SLC3A2 not only downregulated SLC7A11 but also prevented the activation of the AKT/NRF2/GPX4 axis. These lead to increased accumulation of reactive oxygen species and lipid peroxides, ultimately enhancing the susceptibility of glioma to ferroptosis.
Conclusion
Our findings suggest that SLC3A2 is an oncogene in gliomas, promoting their occurrence and development. It plays a critical role in ferroptosis resistance through the AKT/NRF2/GPX4 axis.
2.Material Basis of Entada phaseoloides Against Neuropathic Pain Based on in vitro Chemical Profiling and in vivo Absorbed Constituents
Sensen LI ; Hanxue WU ; Yuanbin LI ; Limin ZHAO ; Xiaohui SU ; Hui XIONG ; Weihua MA ; Chao WANG ; Zhaochen MA ; Na LIN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(18):88-97
ObjectiveTo systematically characterize the in vitro chemical constituents of Entada phaseoloides and its absorbed prototype compounds and metabolites in a neuropathic pain (NP) model, thereby elucidating the potential pharmacological material basis underlying its analgesic activity. MethodsUltra-high-performance liquid chromatography coupled with quadrupole-Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS) was used to analyze the constituents of the 80% methanol extract of E. phaseoloides. Thirty-six mice were divided into a blank group, low-, medium-, and high-dose E. phaseoloides extract groups (25, 50, and 100 mg·kg-1, respectively), an aspirin group (400 mg·kg-1), and a morphine group (10 mg·kg-1), with six mice in each group. The tail-flick threshold was measured. Twenty-four mice were randomly divided into a blank group and low-, medium-, and high-dose E. phaseoloides extract groups (25, 50, and 100 mg·kg-1, respectively), with six mice in each group, and motor coordination was evaluated. A spinal nerve ligation (SNL) model was established in mice. Twenty-four mice were randomly divided into a sham-operated (Sham) group, an SNL group, an SNL + E. phaseoloides extract group (750 mg·kg-1), and an SNL + pregabalin group (20 mg·kg-1), with 6 mice in each group. Mechanical allodynia and thermal hyperalgesia were evaluated. Behavioral assessments were combined to determine the optimal onset time of the analgesic effect, and plasma samples were collected at this time point. Absorbed components and metabolites were systematically identified based on accurate mass, MS/MS fragmentation patterns, retention time, and comparisons with literature data and reference standards. Meanwhile, network pharmacology, target similarity analysis, and molecular docking validation were integrated to evaluate the potential effects of absorbed components on disease intervention. ResultsCompared with the blank group, the high-dose E. phaseoloides extract group and morphine group showed significantly increased pain response thresholds (P<0.01), without affecting motor coordination in normal mice. Compared with the Sham group, the SNL group exhibited significantly decreased thresholds for mechanical allodynia and thermal hyperalgesia (P<0.01). Compared with the SNL group, the SNL + E. phaseoloides extract group and SNL + pregabalin group showed significantly increased thresholds for mechanical allodynia and thermal hyperalgesia (P<0.01). The analgesic effect of E. phaseoloides was most significant at 2 h after administration. A total of 70 constituents were identified in vitro, and 22 prototype compounds and 29 metabolites were detected in plasma. The targets of the absorbed components were mainly enriched in biological processes associated with pain signal perception and transmission and showed a high degree of overlap with disease genes related to neuropathic pain. In addition, multiple components exhibited strong binding energies with core pain-related targets. Based on integrated analysis of in vitro content, plasma exposure levels, and target associations, ketanthamide A-β-D-pyranoside and ketengzide were identified as the most representative pharmacologically active substances responsible for the analgesic effect. ConclusionThis study systematically elucidates the material basis of E. phaseoloides intervention in neuropathic pain from three aspects, including chemical constituent characteristics, in vivo behavioral characteristics, and potential targets, providing important theoretical foundations and experimental support for further studies on its pharmacological mechanism and analgesic drug development.
3.Working practices in eliminating the public health crisis caused by viral hepatitis in Hainan Province of China
Weihua LI ; Changfu XIONG ; Taifan CHEN ; Bin HE ; Dapeng YIN ; Xuexia ZENG ; Feng LIN ; Biyu CHEN ; Xiaomei ZENG ; Biao WU ; Juan JIANG ; Lu ZHONG ; Yuhui ZHANG
Journal of Clinical Hepatology 2025;41(2):228-233
In 2022, Hainan provincial government launched the project for the prevention and control of viral hepatitis with the goals of a hepatitis B screening rate of 90%, a diagnostic rate of 90%, and a treatment rate of 80% among people aged 18 years and above by the year 2025, and the main intervention measures include population-based prevention, case screening, antiviral therapy, and health management. As of December 31, 2024, a total of 6.875 million individuals in the general population had been screened for hepatitis B, with a screening rate of 95.6%. A total of 184 710 individuals with positive HBsAg were identified, among whom 156 772 were diagnosed through serological reexamination, resulting in a diagnostic rate of 84.9%. A total of 50 742 patients with chronic hepatitis B were identified, among whom 42 921 had hepatitis B-specific health records established for health management, with a file establishment rate of 84.6%. A total of 31 553 individuals received antiviral therapy, with a treatment rate of 62.2%. A total of 2.503 million individuals at a high risk of hepatitis C were screened, among whom 4 870 tested positive for HCV antibody and 3 858 underwent HCV RNA testing, resulting in a diagnostic rate of 79.2%, and 1 824 individuals with positive HCV RNA were identified, among whom 1 194 received antiviral therapy, with a treatment rate of 65.5%. In addition, 159 301 individuals with negative HBsAg and anti-HBs and an age of 20 — 40 years were inoculated with hepatitis B vaccine free of charge. Through the implementation of the project for the prevention and control of viral hepatitis, a large number of hepatitis patients have been identified, treated, and managed in the province within a short period of time, which significantly accelerates the efforts to eliminate the crisis of viral hepatitis.
4.Effect of Shenge Bushen Capsules and Its Polysaccharides and Flavonoids on Precocious Puberty in Young Mice
Hong SUN ; Fan LEI ; Chenggong LI ; Shixian HU ; Weihua WANG ; Bin REN ; Juan HAO ; Rui LUO ; Lijun DU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):95-103
ObjectiveTo explore the effect of Shenge Bushen Capsules (SBC) on sexual development in normal 3-week-old mice. MethodsThe experiment consisted of two parts. In the first part, mice were divided into four groups: The control group and the low, medium, and high-dose SBC groups (234.7, 469.4, 938.7 mg·kg-1, respectively). In the second part, mice were divided into four groups: Control group, Pseudostellariae Radix polysaccharide (PRP) group, total flavonoids group, and SBC group, all receiving a dose of 469.4 mg·kg-1. After 7 days of administration, the vaginal opening of female mice and the descent of testes and scrotum in male mice, as well as the ovarian and testicular organ indices, were observed. After 4 weeks of administration, female and male mice were housed together for 2 days, and the pregnancy rate of females was monitored. After delivery, the pregnant female mice continued receiving the treatment for 4 weeks, and the sexual development of their offspring, including vaginal opening, testicular descent, and organ indices of ovaries and testes, was observed. Serum sex hormones were measured by enzyme-linked immunosorbent assay (ELISA), and the expression of gonadotropin-releasing hormone (GnRH) and growth hormone (GH) proteins in the hypothalamus was assessed by Western blot. ResultsCompared with the control group, there was no significant effect on the vaginal opening of female mice or the descent of testes in male mice after 7 days of SBC administration. After 4 weeks of administration, the pregnancy rate in the low-dose group was significantly reduced (P<0.05), but no significant effects were observed in the other groups. The three doses of SBC did not significantly affect the ovarian or testicular organ indices, and there was no significant upregulation in the expression of GnRH or GH in the hypothalamus. The primary component of SBC, Pseudostellariae Radix polysaccharide, significantly reduced the vaginal opening in female mice after 7 days of administration (P<0.05). After 4 weeks, the serum estradiol levels of non-pregnant female mice were decreased (P<0.05), but there was no significant effect on the expression of GnRH or GH proteins in the hypothalamus of either male or female mice. Additionally, there were no significant effects on precocious puberty indicators, such as vaginal opening and testicular descent, in the offspring mice. ConclusionSBC does not significantly promote precocious puberty in young mice, and it does not have any noticeable effects on the pregnancy rate of adult mice or the sexual development of their offspring.
5.Availability and use of child safety seats among children aged 0-3 years
CHEN Bo ; WANG Xihui ; QIU Fengqian ; YU Yan ; GAO Shuna ; HE Lihua ; LI Weiyi ; JI Yunfang ; CHEN Weihua
Journal of Preventive Medicine 2025;37(1):21-25
Objective:
To investigate the availability and use of child safety seats among children aged 0-3 years, so as to provide the basis for improving riding safety for children.
Methods:
Parents of children aged 0-3 years in Huangpu District, Shanghai Municipality, were recruited using the stratified multistage random sampling method from May to July 2024. Demographic information, family travel patterns, the use of child safety seat and related health beliefs were collected using questionnaire surveys. Factors affecting the use of child safety seats were identified using a multivariable logistic regression model.
Results:
Totally 514 valid questionnaires were recovered, with an effective rate of 96.98%. The respondents included 122 fathers (23.74%) and 392 mothers (76.26%), with a median age of 34.00 (interquartile range, 5.00) years. There were 446 families equipping with child safety seats, accounting for 86.77%; and 169 families using child safety seats, accounting for 32.88%. Multivariable logistic regression analysis showed that the parents who had children aged >1-2 years (OR=0.597, 95%CI: 0.366-0.973), travelled 2-4 times per month (OR=0.359, 95%CI: 0.213-0.607) or once per month or less (OR=0.384, 95%CI: 0.202-0.729), and scored high in perceived barrier (OR=0.634, 95%CI: 0.486-0.827) were less likely to use child safety seats; the parents who had children with local household registration (OR=2.506, 95%CI: 1.356-4.633), travelled 5-<10 km (OR=1.887, 95%CI: 1.148-3.101) or ≥10 km (OR=2.319, 95%CI: 1.355-3.967), always wore seat belts (OR=2.342, 95%CI: 1.212-4.524), scored high in perceived susceptibility (OR=1.392, 95%CI: 1.091-1.778) and self-efficacy (OR=1.413, 95%CI: 1.156-1.727) were more likely to use child safety seats.
Conclusions
Equipping family cars with child safety seats and using them can prevent and reduce traffic injuries among children aged 0-3 years. It is recommended to strengthen publicity to promote the use of child safety seats.
6.Research advances in machine learning for prognosis and risk of adverse event prediction after mechanical thrombectomy in acute anterior circulation large vessel occlusion
Chenwei LI ; Keke YANG ; Xiaojun WANG ; Weihua GUO ; Zhiheng FENG ; Huiyuan PENG
Chinese Journal of Cerebrovascular Diseases 2025;22(3):210-216,后插1
Acute large vessel occlusion stroke(ALVOS)of anterior circulation is associated with severe clinical manifestations and high rates of disability and mortality.Mechanical thrombectomy has emerged as the primary therapeutic intervention.However,post-procedural outcomes remain highly variable,and patients continue to face elevated risks of poor prognosis.Machine learning,a transformative tool in medical research,enables comprehensive analysis of multimodal data to identify specific biomarkers and improve the accuracy of predictions for clinical outcomes and adverse events.This review summarized the latest developments in machine learning applications aim at predicting post-thrombectomy prognosis and risk of adverse event,including futile recanalization,hemorrhagic transformation,and malignant cerebral edema in patients with anterior circulation ALVOS in order to provide a basis for developing personalized treatment plan and improve their clinical prognosis.
7.Mediating effect of intrinsic motivation of nurses between empowering leadership and job performance
Shujuan WEN ; Lili HOU ; Weihua WU ; Xiaomei JIANG ; Zhiwen ZHU ; Wenli ZHANG ; Lei YANG ; Siqi LI
Chinese Journal of Practical Nursing 2025;41(15):1168-1175
Objective:To explore the mediating effect of intrinsic motivation of nurses between empowering leadership and job performance, with the aim of providing a reference basis for managers to develop a scientific and effective intervention programme to improve nurses′ job performance.Methods:Convenience sampling method was used to select 1 213 clinical nurses from four tertiary general hospitals in Shandong Province, Henan Province, Yunnan Province, and Fujian Province from November to December 2023, and General Information Questionnaire, Empowering Leadership Scale, Intrinsic Motivation Scale, and Job Performance Scale were used to conduct a cross-sectional survey. AMOS26.0 software was used to test the mediating effect of intrinsic motivation of nurses between empowering leadership and job performance.Results:A total of 1 100 nurses completed the survey finally. Among them, there were 58 males and 1 042 females, 474 under 31 years old, 448 between 31-40 years old, and 178 over 40 years old.The total scores of the Empowering Leadership Scale, Intrinsic Motivation Scale, and Job Performance Scale were 49.44 ± 10.04, 82.35 ± 13.54 and 46.27 ± 6.20 in that order. Nurses' job performance were positive correlation with the empowered leadership and intrinsic motivation ( r=0.486, 0.703, both P<0.01), there was a positive correlation between nurse empowerment leadership and intrinsic motivation ( r=0.452, P<0.01). Nurses′ intrinsic motivation partially mediates the relationship between empowering leadership and job performance, accounting for 62.69% of the total effect. Conclusions:Intrinsic motivation of nurses is a mediating variable between empowered leadership and job performance. Nursing managers should focus on nurses' participation in autonomous decision-making to enhance nurses′ sense of competence and meaning at work, and mobilise their motivation to improve job performance.
8.Research progress on the effects and mechanisms of fetal growth restriction induced by PM 2.5 exposure
Shimin TAO ; Weihua LI ; Yanyi XU
Chinese Journal of Reproduction and Contraception 2025;45(4):421-427
The adverse effects of fine particulate matter (PM 2.5) on human health have become a major global public health concern. Pregnant women and fetuses, as susceptible populations, are more vulnerable to the threat of PM 2.5 pollution. Increasing studies indicate that PM 2.5 exposure is an important risk factor of fetal growth restriction (FGR), and oxidative stress, inflammatory response, endocrine disorders, epigenetic modifications, autophagic abnormalities, and gut microbiota dysbiosis may be the biological mechanisms underlying PM 2.5-induced FGR. This study offers insights for the development of targeted preventive and therapeutic methods for FGR caused by PM 2.5.
9.Analysis of the status of clinical trial registration for contraceptives based on WHO International Clinical Trials Registry Platform
Mingjun YANG ; Fang TIAN ; Xin ZHANG ; Minjie XIA ; Jingying HU ; Weihua LI ; Daxu FU
Chinese Journal of Reproduction and Contraception 2025;45(7):720-724
Objective:To analyze the registration status of clinical trials related to contraceptives based on the data of World Health Organization International Clinical Trials Registry Platform (ICTRP), so as to understand the situation of contraceptives development, and provide reference for improving the quality of clinical trials.Methods:All records in the database of ICTRP before January 1, 2025 was researched to screen out contraceptives clinical trials, and the registration time, registration platform, regional distribution, trial design and research content were analyzed.Results:A total of 206 clinical trials related to contraceptives were included. The projects were mainly carried out in the United States, Germany, and India. About 95.63% (197/206) of the study subjects were women of reproductive age. The main type of study was intervention [89.32% (184/206)], among which random trials accounted for 53.26% (98/184), and parallel group trials were the most common [82.65% (81/98)]. Over 64.56% (133/206) of the trials were indicated with open-label. Most of the clinical trials were in phase Ⅲ [47.57% (98/206)] and phase Ⅳ [16.50% (34/206)]. The interventions in female studies were mainly in three aspects: oral contraceptive [42.64% (84/197)], intrauterine delivery [15.23% (30/197)], and vaginal delivery [15.23% (30/197)], and the primary outcome included pregnancy rate [54.82% (108/197)], adverse drug reactions [13.20% (26/197)], ovulation inhibition [8.63% (17/197)], and vaginal infection [4.06% (8/197)].Conclusion:The clinical trials of contraceptives were unevenly distributed, the research types were mainly randomized interventional trials, the included participants were mainly women of reproductive age, the intervention measures were mostly oral contraceptive, intrauterine delivery and vaginal delivery.
10.Effect of intravenous lidocaine on postoperative fatigue syndrome in patients after laparoscopic resection of gastric carcinoma
Songhai GUO ; Liwei WANG ; Bin SUN ; Chunyan ZHOU ; Weihua LI ; Conghai FAN
The Journal of Practical Medicine 2025;41(9):1373-1378
Objective To investigate the effect of intravenous lidocaine on postoperative fatigue syndrome(POFS)in patients undergoing laparoscopic resection for gastric carcinoma.Methods A total of 80 patients who underwent elective laparoscopic resection for gastric carcinoma at Xuzhou Central Hospital between September 2023 and June 2024 were enrolled.Inclusion criteria included age 18~75 years,ASA physical status classificationⅠ~Ⅲ,body mass index(BMI)of 18.5~27.9 kg/m2,preoperative Christensen score≤4,and estimated operation time≤4 hours.Patients were randomly allocated into either the lidocaine group(Group L)or the saline group(Group C)using a random number table,with 40 patients in each group.Group L received an intravenous infusion of lidocaine at a dose of 1.5 mg·kg?1 over 15 minutes,initiated 30 minutes before anesthesia induction.If no adverse reactions occurred,lidocaine was maintained at a rate of 1.5 mg/(kg·h)throughout the surgery until its conclusion.Group C received an equivalent volume of normal saline administered in the same manner.The Christensen score and Visual Analogue Scale(VAS)scores were recorded on postoperative days 1,3,5,and 7,and the time-weighted average(TWA)of the Christensen score was calculated.Postoperative inflammatory markers were measured,and additional outcomes including extubation time,post-anesthesia care unit(PACU)stay duration,postoperative nausea and vomiting(PONV),consumption of rescue analgesics,time to first flatus and defecation,and length of hospital stay were also documented.Results Compared with Group C,the TWA of the Christensen score in Group L decreased by 0.44 points(95%CI:0.11~0.76;P<0.05).The VAS scores were significantly lower in Group L on postoperative days 1 and 3(P<0.05).Levels of IL-6 and TNF-α at the end of surgery and 24 hours after surgery were also lower in Group L(P<0.05).The time to first flatus and defecation was significantly shorter in Group L(P<0.05).There were no significant differences between the two groups regarding extubation time,PACU stay duration,incidence of PONV,postoperative consumption of remedial analgesic drugs,or length of hospital stay(P>0.05).Conclusion Intravenous lidocaine may improve POFS in patients following laparo-scopic resection for gastric carcinoma by attenuating inflammatory responses,alleviating pain,and facilitating gastrointestinal function recovery,while maintaining a favorable safety profile.


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