1.Physical exercise improves physical function in burn patients:a systematic review and meta-analysis
Qiang CHEN ; Wenjuan WU ; Shuhua JIANG ; Da HUANG
Chinese Journal of Tissue Engineering Research 2026;30(5):1269-1281
OBJECTIVE:Some studies have shown that physical exercise can effectively improve knee extensor strength and cardiorespiratory function in burn patients;some studies have also shown that physical exercise is not effective in improving respiratory function in burn patients.Improvement effects of physical exercise on physical functions(muscle function,walking function,cardiopulmonary function,and lean body mass)of burn patients were evaluated by a systematic evaluation and meta-analysis.METHODS:Based on databases including Web of Science,PubMed,Embase,Cochrane Library,CNKI,WanFang,and the Chinese Biomedical Database,literature on the improvement of physical function in burn patients through physical exercise was searched using subject headings and free terms.With muscle function,walking ability,cardiopulmonary function,and lean body mass as the primary outcome measures,a meta-analysis was conducted to compare the efficacy of physical exercise with traditional physical therapy or conventional care methods.RESULTS:A total of 38 papers were included,of which 26 papers were included in the meta-analysis,involving 1 658 patients.Meta-analysis results showed that:(1)Physical exercise significantly enhances the knee extensor strength of the dominant leg in burn patients(mean difference[MD]=8.34,95%confidence interval[CI]:6.95-9.72,P<0.000 01),increases quadriceps strength,peak oxygen uptake,forced vital capacity and maximum ventilation volume in 1 second,and resting heart rate(standardized mean difference[SMD]=4.41,95%CI:2.52-6.30,P<0.000 01;MD=4.91,95%CI:3.52-6.29,P<0.000 01;MD=5.86,95%CI:0.09-11.63,P=0.05;MD=6.90,95%CI:2.93-10.87,P=0.000 7;MD=5.03,95%CI:1.45-8.61,P=0.006),and improves the 6-minute walking distance,gait parameters,and total lean body mass(MD=45.29,95%CI:24.7-65.89,P<0.0001;SMD=7.84,95%CI:6.05-9.63,P<0.000 01;MD=2.47,95%CI:2.01-2.93,P<0.000 01).(2)The subgroup analysis results indicated that the improvement in knee extensor strength of the dominant leg may be better in children than in adults and better in the extra-heavy group than in the heavy group.Improvement in the 6-minute walking distance is better in children than in adults,and higher degree of burn indicates better improvement effects,with no difference from the control group for<12 weeks.Peak oxygen uptake may be better in adults and severe burn groups than in children and moderate burn groups,resistance combined with aerobic exercise modalities may be better than aerobic exercise alone,and exercise duration>60 minutes may be better than<60 minutes.CONCLUSION:Physical activity is effective in improving physical function in burn patients,as evidenced by improvements in muscle strength,walking ability,cardiorespiratory fitness,and lean body mass.The quality of evidence recommended for all indicator results is moderate or below,with imprecision and inconsistency being the main factors for downgrading.Therefore,more high-quality randomized controlled trials are needed in the future to verify the reliability of the results.
2.Long-term survival outcomes and prognostic factors following radical resection of pancreatic body and tail cancer:a retrospective analysis of 992 patients
Dong XU ; Yang WU ; Kai ZHANG ; Nan LYU ; Qianqian WANG ; Pengfei WU ; Jie YIN ; Baobao CAI ; Guodong SHI ; Jianzhen LIN ; Yazhou WANG ; Lingdi YIN ; Zipeng LU ; Min TU ; Jianmin CHEN ; Feng GUO ; Jishu WEI ; Junli WU ; Wentao GAO ; Cuncai DAI ; Yi MIAO ; Kuirong JIANG
Chinese Journal of Surgery 2026;64(1):46-54
Objective:To investigate the survival outcomes and prognostic factors in patients undergoing radical resection for pancreatic body and tail cancer.Methods:A retrospective case series study was conducted on 992 patients who underwent radical resection for pancreatic body and tail cancer at the Pancreatic Center of the First Affiliated Hospital of Nanjing Medical University from January 2016 to June 2024. In this study, 577 (58.2%) were male and 415 (41.8%) were female,with an age of (65±9) years (range: 26 to 86 years). Follow-up continued until June 2024. Survival rates were estimated using the Kaplan-Meier method,and prognostic factors were identified using univariate and multivariate Cox proportional hazards models.Results:Among 992 patients,open surgery was the predominant approach (89.1%, 884/992), and radical antegrade modular pancreatosplenectomy (RAMPS) was performed in 317 patients (32.0%). Combined organ resection,venous resection,and arterial resection were performed in 23.5%, 9.3%,and 11.2% of patients,respectively. The rates of R0, R1-1 mm, and R1-direct resections were 49.8% (494/992),41.5% (412/992), and 8.7% (86/992),respectively. Stage ⅡB was the most common TNM stage (32.2%,319/992). A total of 801 patients (80.8%) received adjuvant chemotherapy. The median follow-up period was 32.0(8.8) months(range:3.2 to 105.3 months),during which 508 patients (51.2%) died. The overall median survival (OS) was 26.4 months,with 1-,3-, and 5-year survival rates of 79.0%,40.0%, and 29.0%, respectively. In the recent five years (from 2020 to 2024), the median OS improved significantly to 34.1 months compared to 20.0 months from 2016 to 2019 ( P<0.01). Histological subtype analysis showed that the median OS time was 26.7 months for pancreatic ductal adenocarcinoma (PDAC, n=855),58.9 months for invasive intraductal papillary mucinous carcinoma (IPMC, n=32),and 15.7 months for adenosquamous carcinoma of pancreas (ASCP, n=73) ( P=0.001). Among PDAC patients, adjuvant chemotherapy significantly improved survival (29.1 months vs. 14.4 months, P<0.01);in IPMC patients, adjuvant chemotherapy also extended survival (65.7 months vs. 58.9 months, P=0.047). Although ASCP patients receiving chemotherapy had a longer median OS time than those without (18.8 months vs. 8.9 months),the difference was not statistically significant ( P=0.151). Multivariate Cox regression analysis in PDAC patients indicated that adjuvant chemotherapy, R0 resection, T stage,N stage,and tumor differentiation were independent prognostic factors ( P<0.01). The median OS time by TNM stage was:not reached for stage ⅠA, 51.6 months for ⅠB, 25.5 months for ⅡA, 23.7 months for ⅡB, 23.0 months for Ⅲ, and 14.4 months for Ⅳ. The median OS time for R0,R1-1 mm,and R1-direct resections was 34.1,24.7,and 15.7 months,respectively ( P<0.01). Conclusion:Adjuvant chemotherapy,R0 resection,tumor stage,and differentiation are independent prognostic factors for pancreatic body and tail cancer.
3.Overactivation of the ILC2-AREG-Treg axis promotes the progression of cervical cancer by shaping an immunosuppressive microenvironment
WANG Bihui1,2 ; ZHANG Yulian3 ; WU Yufeng1,2 ; DING Jianbing4 ; CHEN Zhifang1,2
Chinese Journal of Cancer Biotherapy 2026;33(4):389-399
[摘 要] 目的:探讨Ⅱ型固有淋巴细胞(ILC2)-双调蛋白(AREG)-调节性T(Treg)细胞轴在宫颈癌免疫微环境调控中的作用及机制。方法:收集2021年5月—2022年5月于新疆医科大学第一附属医院收治的Ⅰ~ⅡA期宫颈癌患者肿瘤组织(n = 8),以子宫肌瘤手术患者的正常宫颈组织(n = 8)作为对照;另收集全分期宫颈癌患者的外周血样本(n = 30),并以健康志愿者外周血作为对照(n = 30)。利用GEPIA数据库分析AREG与叉头框蛋白P3(Foxp3)的mRNA表达水平。采用多重免疫荧光技术、流式细胞术检测组织及外周血中ILC2、Treg细胞浸润水平;通过ELISA、IHC和WB法验证AREG、Foxp3及IL-10的表达水平,并对ILC2、AREG、Treg细胞及IL-10进行相关性分析。体外分离宫颈癌患者ILC2与PBMC,分别使用重组人IL-33(rhIL-33)、抗人IL-33抗体(α-IL-33)及重组人AREG(rhAREG)、抗人AREG抗体(α-AREG)进行干预;采用CCK-8法与流式细胞术检测不同浓度rhAREG对HeLa、SiHa细胞增殖及凋亡的影响,ELISA检测上清中AREG、IL-10浓度,流式细胞术检测Treg细胞比例变化。此外,本研究还比较了宫颈癌患者手术前后外周血中ILC2、AREG、Treg细胞及IL-10的水平差异。结果:宫颈癌患者组织及外周血中ILC2浸润水平和AREG表达显著高于对照组,Treg细胞比例、Foxp3及IL-10表达亦明显上调(P < 0.05);相关性分析显示,ILC2、Treg细胞、AREG与IL-10彼此正向关联。体外实验表明,不同浓度rhAREG对宫颈癌细胞(HeLa、SiHa)的增殖及凋亡无明显作用(P > 0.05);rhIL-33可激活ILC2并上调AREG分泌(P < 0.01),而α-IL-33可逆转该效应(P < 0.05);rhAREG可促进Treg细胞分化及IL-10分泌(P < 0.001),α-AREG则显著逆转上述作用(P < 0.01)。此外,宫颈癌患者术后外周血中ILC2、Treg细胞、AREG及IL-10水平均显著降低(P < 0.000 1)。结论:ILC2-AREG-Treg免疫调控轴异常激活,可能通过介导免疫抑制性肿瘤微环境形成参与宫颈癌进展。
4.Targeting dendritic cell metabolic reprogramming: a new strategy for tumor immunotherapy
REN Ziyu ; WU Jing ; CHEN Jingtao
Chinese Journal of Cancer Biotherapy 2026;33(5):477-485
[摘 要] 树突状细胞(DC)是连接固有免疫与适应性免疫的核心枢纽,其功能稳态是介导肿瘤免疫监视的关键。然而,肿瘤微环境(TME)通过营养竞争及免疫抑制代谢产物的累积,驱动DC发生代谢重编程,进而诱导免疫应答功能缺陷。本文系统综述了TME中DC各亚型在三大代谢层面的重塑机制:糖代谢层面,高乳酸微环境通过GPR81信号抑制MHC-Ⅱ类分子表达,削弱传统树突状细胞(cDC)的抗原提呈能力;脂代谢层面,Wnt5a-β-catenin-PPARγ-CPT1A轴介导的脂肪酸氧化促进cDC向免疫抑制表型极化;氨基酸代谢层面,Arg1-IDO1通路的级联激活诱导DC获得耐受表型。针对上述代谢异常,当前干预策略已由单一靶点调控拓展至多模式联合,包括基于脂质纳米颗粒的原位疫苗与mRNA递送系统、代谢-免疫协同阻断,以及代谢状态优化的DC疫苗等。因此,深化对DC代谢检查点的认知,并靶向干预关键代谢检查点,不仅有望逆转免疫抑制微环境、克服治疗耐药,更为开发新一代代谢-免疫联合疗法提供了重要的科学依据与转化策略。
5.Clinical Efficacy of Janus Kinase Inhibitors in Combination with Chinese Herbal Medicine for Rheumatoid Arthritis:A Retrospective Study and A Meta-analysis
Chenguang ZHAN ; Shengqin YANG ; Xin LI ; Yu WEN ; Peng ZHANG ; Xingrui YAN ; Haifang DU ; Maojie WANG ; Xiaodong WU ; Liyan MEI ; Xiumin CHEN ; Yanlin LI ; Runyue HUANG
Journal of Traditional Chinese Medicine 2026;67(5):534-543
ObjectiveTo evaluate the efficacy and safety of Janus kinase (JAK) inhibitors combined with Chinese herbal medicine (CHM) in treating rheumatoid arthritis (RA). MethodsClinical data from 169 RA patients were retrospectively collected. Among them, 71 cases received JAK inhibitors as the control group, while 98 cases received JAK inhibitors plus CHM as the observation group, both treated for 24 weeks. The rheumatoid factor (RF), cyclic citic peptide antibody (anti-CCP), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and white blood cell count (WBC) were recorded before and after treatment. Databases including CNKI, Wanfang, VIP, PubMed and Web of Science were searched from inception till August 31st, 2025 for randomized controlled trials (RCTs) on the combined use of JAK inhibitors and CHM for RA. The methodological quality of the included studies was evaluated using the risk of bias assessment tool. Meta-analyses were performed for RF, anti-CCP, ESR, CRP, 28-joint disease activity score (DAS28), overall clinical effective rate, and incidence of adverse events. Sensitivity analysis were also performed. ResultsThe retrospective study demonstrated that after treatment, ESR, CRP, and anti-CCP levels decreased in the observation group, while ESR and CRP levels decreased in the control group (P<0.05). Moreover, ESR and RF levels in the observation group were lower than those in the control group (P<0.05). A total of 9 RCTs involving 770 patients were included in the meta-analysis. The results indicated that the JAK inhibitors plus CHM group was superior to the JAK inhibitors group in reducing RF (MD=-8.97, 95%CI -15.01 to -2.94, P=0.004), CRP (MD=-3.34, 95%CI -3.82 to -2.86, P<0.001), ESR (MD=-5.33, 95%CI -7.98 to -2.69, P<0.001), and DAS28 score (MD=-0.54, 95%CI -0.74 to -0.34, P<0.001), as well as in improving the overall clinical effective rate (OR=4.53, 95%CI 2.55 to 8.03, P<0.001). No statistically significant differences were observed between groups in anti-CCP levels (SMD=-2.08, 95%CI -4.41 to 0.24, P=0.080) or incidence of adverse events (OR=0.93, 95%CI 0.55 to 1.57, P=0.790). ConclusionThe combination of JAK inhibitors and CHM demonstrates remarkable efficacy in treating RA, contributing to improved disease activity and reduced inflammatory markers with a favorable safety profile.
6.Comparative Analysis of Clinical Efficacy of Traditional Chinese Medicine Manipulative Reduction Combined with Small Splint Fixation Versus Surgical Treatment for Type A Distal Radius Fracture
Yang SHAO ; Zihan WANG ; Jianwei WANG ; Guoda DAI ; Hengyan CUI ; Zhen HUA ; Tingchen ZHU ; Shaoshuo LI ; Jun MAO ; Fenghua CHEN ; Shuai TAO ; Mao WU
Journal of Traditional Chinese Medicine 2026;67(10):1078-1085
ObjectiveTo compare the clinical efficacy of traditional Chinese medicine (TCM) manipulative reduction combined with small splint fixation versus surgical treatment for type A distal radius fracture (DRF) and to explore the factors influencing the choice of treatment. MethodsA multi-center retrospective study was conducted, collecting data from 1237 type A DRF patients treated in 11 hospitals in Jiangsu province from September, 2023 to April, 2025. Among them, 851 patients in the TCM group received manipulative reduction combined with small splint fixation, and 386 patients in the surgical group underwent open reduction and internal fixation. Visual analog scale (VAS) scores for pain and radiographic indicators including palmar tilt, ulnar deviation, and radial height were compared before treatment, 5-7 days after treatment, and 4-6 weeks after treatment. The wrist joint function scores including Dienst and Gartland-Werley scores at 12 weeks after treatment were recorded. Subgroup analysis was conducted for the excellent rate of Dienst and Gartland-Werley scores, stratified by age (<50, 50-59, 60-69, ≥70 years old) and AO subtypes (A1, A2, A3). A multivariate logistic regression model was used to identify independent factors influencing treatment choice. ResultsOn 5-7 days after treatment, the surgical group had lower VAS scores than the TCM group, while 4-6 weeks after treatment, the TCM group showed lower VAS scores than the surgical group (P<0.01). In terms of radiographic indicators, except for the palmar tilt before treatment being higher in the surgical group than in the TCM group (P<0.01), there were no significant differences in palmar tilt, ulnar deviation, and radial height at other timepoints (P>0.05). Twelve weeks after treatment, the surgical group had a higher average Gartland-Werley score and the excellent rate than the TCM group (P<0.01). Subgroup analysis showed that in patients with A2 type DRF aged 50-59 and 60-69 years old, the excellent rates of Dienst and Gartland-Werley scores in the TCM group were higher than those in the surgical group (P<0.05). Multivariate logistic regression analysis revealed that age, palmar tilt, ulnar deviation, and the degree of swelling on the affected side were independent factors influencing the choice of treatment (P<0.05). ConclusionBoth TCM manipulative reduction combined with small splint fixation and surgical treatment for type A DRF can achieve good therapeutic effects. TCM manipulative reduction combined with small splint fixation has certain advantages in medium- and long-term pain relief, especially in elderly patients, where wrist joint function recovery is more stable. Age, palmar tilt, ulnar deviation, and swelling degree are the main factors influencing the treatment choice.
7.Relationship between short video addiction and learning burnout in adolescent patients with depression: the pathways of impulsivity and coping disposition
Yanyun QIN ; Jianghui DONG ; Lichang WU ; Shanshan QI ; Minmin CHEN ; Yanling ZHOU
Sichuan Mental Health 2026;39(2):126-132
BackgroundCurrently, the incidence of depression among teenagers is on the rise, and the related academic problems are becoming increasingly serious. Short video addiction has a negative impact on teenagers' emotional issues and academic achievements. However, few studies have explored the relationship between this addiction and the learning burnout of teenagers with depression, and even fewer have focused on the role paths of impulsivity and coping disposition in this process. ObjectiveTo explore the relationship between short video addiction and learning burnout in adolescent patients with depression, as well as the pathway of impulsivity and coping disposition, so as to provide references for the intervention of learning burnout in adolescent patients with depression. MethodsA total of 191 adolescent patients who were hospitalized at The Affiliated Brain Hospital of Guangzhou Medical University from December 2024 to April 2025 and met the diagnostic criteria for depression according to the International Classification of Diseases, tenth edition (ICD-10) were selected consecutively. The Short Video Addiction Measurement Scale (SVAMS), the Brief Barratt Impulsiveness Scale (BBIS), the Simplified Coping Style Questionnaire (SCSQ), and the Adolescent Student Burnout Inventory (ASBI) were used for assessment. Pearson correlation analysis was employed to examine the correlations of the scores of each scale. Model 6 of the SPSS macro Process 4.2 was employed to analyze the chained mediation pathway of impulsivity and coping disposition between short video addiction and learning burnout. ResultsA total of 173 cases (90.58%) of adolescent patients with depression completed the valid questionnaire survey. Correlation analysis showed that SCSQ coping disposition score was negatively correlated with the SVAMS score, the BBIS score, and the ASBI score (r=-0.282, -0.341, -0.431, P<0.01), the SVAMS score was positively correlated with the BBIS score and the ASBI score (r=0.339, 0.262, P<0.01), and the BBIS score was positively correlated with the ASBI score (r=0.486, P<0.01). The pathway analysis showed that the direct effect of short video addiction on learning burnout was not statistically significant, but the total effect and the indirect effect were statistically significant. The effect values were 0.275 (95% CI: 0.207–0.343) and 0.193 (95% CI: 0.143–0.246), respectively, with the indirect effect accounting for 70.18%. Impulsivity and coping disposition both played independent mediating roles between short video addiction and learning burnout, with effect values of 0.122 (95% CI: 0.090–0.156) and 0.054 (95% CI: 0.032–0.079), accounting for 44.36% and 19.64% of the total effect, respectively. The chained mediation effect of impulsivity and coping disposition was significant, with an effect value of 0.017 (95% CI: 0.011–0.026), accounting for 6.18% of the total effect. ConclusionAlthough short video addiction does not directly affect learning burnout in adolescent patients with depression, it may indirectly influence learning burnout through independent and chain paths of impulsivity and coping disposition. [Funded by Guangzhou Key Clinical Specialty (Clinical Medical Research Institute)]
8.Photodynamic performance and anti-lung cancer effect of novel chlorin compounds
Yan QIU ; Hao WU ; Yafen DONG ; Ye CHEN ; Jian WANG ; Hui JIN
Journal of Pharmaceutical Practice and Service 2026;44(1):39-45
Objective To study the photodynamic performance and the killing effect of photodynamic therapy on lung cancer of novel chlorin compounds 2-(4-(5,15,20-triphenyl-7H,8H-porphyrin-10-yl) phenoxy) acetic acid(D1)and 4-(4-(5,15,20-triphenyl-7H,8H-porphyrin-10-yl) phenoxy) butanoic acid (D2). Methods The ultraviolet visible absorption spectrum and fluorescence spectrum of D1 and D2 were determined. The singlet oxygen generation capacity of D1 and D2 was measured by using DPBF as singlet oxygen capture agent. Fluorescence assay was used to detect the cellular phagocytosis rate of the compounds in A549 cells, and MTT assay was used to detect their dark toxicity and phototoxicity. A nude mouse model of lung cancer was established to investigate the antitumor activity of the compounds mediated photodynamic action in vivo, and the blood concentration of D2 in nude mice, its distribution in tumor tissue and skin tissue were further detected. Results D1 and D2 had strong absorption at 652 nm with the best excitation wavelength at 429 nm and 427 nm, and the optimal emission wavelength was at about 659 nm. They also had a higher singlet oxygen generation rate than the control drug m-THPC. D1 and D2 had no dark toxicity at concentrations below 10 μmol/L, and could be ingested by A549 cells, basically reaching saturation in 18~24 hours. After laser irradiation at 650 nm wavelength, D1 and D2 showed significant antitumor activity in vivo and in vitro (P<0.01). However, D2 could selectively accumulate in tumor tissues after administration, and the optimal treatment time was less than 30 min after administration. Conclusion D2 had excellent photodynamic antitumor activity and could selectively aggregate in tumor tissues, which had the potential to be a candidate drug for photosensitizer and treatment of lung cancer with independent intellectual property rights, and was worth further research.
9.Development and exploration of a closed-loop management model for externally dispensed intravenous prescriptions
Xuhua XIE ; Yun WU ; Songqing HUANG ; Yukun HUANG ; Siyan CHEN ; Zheng ZENG ; Weiyan TANG ; Zuolong HE ; Chunxia ZHOU ; Hongliang ZHANG
China Pharmacy 2026;37(10):1246-1250
OBJECTIVE To construct a closed-loop management model for externally dispensed intravenous prescriptions, and to provide reference for standardized management of externally dispensed intravenous prescriptions. METHODS Based on the Expert Consensus on Closed-loop Management of Externally Dispensed Intravenous Prescriptions in Guangxi Zhuang Autonomous Region previously formulated by our hospital, risk points during the entire process were systematically identified through multidisciplinary team brainstorming and a fishbone diagram. A series of strategies were subsequently formulated and implemented, including qualifying designated external dispensing pharmacies and the drug catalogs, operating and maintaining the hospital information system and the Pharmacy Intravenous Admixture Service (PIVAS) intelligent management platform, and strengthening differentiated training for staff in the whole workflow. A whole-process closed-loop management system was constructed with PIVAS as the co re hub and the daytime chemotherapy center as the safety terminal. RESULTS A total of 3 cooperating pharmacies and an initial drug list comprising 35 product specifications were selected. A closed‑loop management process encompassing hospital outpatient prescribing, patient drug purchase in designated pharmacies, PIVAS drug dispensing, and medication use in daytime chemotherapy center was successfully established. This system enabled the mandatory grouping and association of externally dispensed intravenous prescriptions with in-hospital diluents, full-process verification based on drug traceability codes, intelligent monitoring of infusion parameters, and whole-process data traceability. CONCLUSIONS The constructed model effectively resolves the coordination and safety oversight during the use of externally dispensed intravenous drugs from out-of-hospital circulation to in-hospital use, and has preliminarily enabled procedural standardization, whole-process information traceability, and proactive control of medication risks.
10.The effect of Chuju total flavonoids on the current and protein expression of BKCa channels in rat middle cerebral artery VSMC
Yuwen LI ; Xiao WANG ; Miao WU ; Shuo CHEN ; Zhiwu CHEN
Acta Universitatis Medicinalis Anhui 2026;61(3):387-394
ObjectiveTo investigate the relationship between the vasodilation and hydrogen sulfide (H2S) mechanism of total flavonoids of chrysanthemum (TFCC) and the large conductance Ca2+- activated K+ (BKCa) channels on vascular smooth muscle cells (VSMCs) of the middle cerebral artery in rats. In addition, this study will also investigate the effect of TFCC on the expression of BKCa channel alpha protein in rat middle cerebral artery VSMCs. MethodsThe primary method employed was acute digestion to isolate VSMCs from the middle cerebral artery of rats; whole-cell patch-clamp techniques were used to measure BKCa channel currents; primary tissue adherence culture was utilized to cultivate VSMCs from the middle cerebral artery of rats; Western blot were employed to determine protein expression levels. ResultsIn whole-cell patch-clamp experiments, both the H2S donor NaHS (100 μmol/L) and endogenous H2S enhanced BKCa channel currents. TFCC (30, 90, and 270 mg/L) also activatedBKCa channels and exhibited a certain concentration-dependent effect. Even after blocking endogenous H2S production, TFCC (270 mg/L) still activated BKCa channels in VSMCs of the middle cerebral artery in rats. In Western blot experiments, the α-subunit of BKCa channel proteins was expressed in all groups of cells, but TFCC (30, 90, and 270 mg/L) and inhibitor IBTX group did not affect the expression of channel protein content.Conclusion TFCC can promote the opening of BKCa channels by promoting the generation of endogenous H2S, or directly activate BKCa channels, thereby playing a role in relaxing cerebral blood vessels. However, TFCC had no significant effect on the expression of BKCa channel proteins.

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