1.Effect of Zhengan Xifengtang on Intestinal Mucosal Barrier in Spontaneously Hypertensive Rats via FXR-MLCK/p-MLC Pathway
Meilong SI ; Hua JIN ; Yu WANG ; Qiuju ZHANG ; Tao LIU ; Yun YONG ; Xuan BAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(21):1-10
ObjectiveTo investigate the repair effects of Zhengan Xifengtang on intestinal mucosal barrier in spontaneously hypertensive rats (SHRs) through the pathways of farnesoid X receptor (FXR)-myosin light chain kinase (MLCK)/phosphorylated myosin light chain (p-MLC) and its potential mechanism. MethodsForty 10-week-old male SHRs were randomly divided into model group, amlodipine besylate group (0.5 mg·kg-1·d-1), and high, middle and low dose groups of Zhengan Xifengtang (34.5, 17.25, 8.625 g·kg-1·d-1); eight age-matched male Wistar-Kyoto (WKY) rats of the same origin served as the normal control group. Drug intervention was carried out for 8 weeks, and the blood pressure of the rats was measured regularly. After the intervention, the rats were euthanized to collect tissue samples. Hematoxylin and eosin (HE) staining and Alcian blue-periodic acid-Schiff (AB-PAS) staining were used to evaluate the pathological morphology and the number of goblet cells in colonic mucosa. Enzyme-linked immunosorbent assay (ELISA) was employed to measure plasma lipopolysaccharide (LPS) and diamine oxidase (DAO) levels in each group of rats. Immunofluorescence (IF) assay was used to detect the relative fluorescence intensity of FXR and p-MLC in colonic tissue. Western blot was used to detect the zonula occludens-1 (ZO-1), Occludin, Claudin-1, junctional adhesion molecule-1 (JAM-1), mucin-2 (MUC2), FXR, MLCK, and p-MLC protein expression in colon tissue. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect mRNA expression levels of ZO-1, Occludin, Claudin-1, JAM-1, MUC2, FXR, MLCK, and MLC in colon tissue. ResultsCompared with the normal group, the blood pressure in the model group increased significantly (P<0.01), the colonic mucosal structure was seriously damaged, and the number of goblet cells decreased significantly. The contents of LPS and DAO increased significantly (P<0.01), the relative fluorescence intensity of FXR in colon decreased, while that of p-MLC increased (P<0.01). The protein and mRNA expressions of ZO-1, Claudin-1, JAM-1, Occludin, MUC2 and FXR decreased significantly (P<0.01), whereas the protein expression of MLCK and p-MLC increased significantly (P<0.01). Additionally, the mRNA expression of MLCK and MLC increased significantly (P<0.01). Compared with the model group, the Zhengan Xifengtang groups at various dosages and the amlodipine besylate group showed significantly reduced blood pressure (P<0.01). The damage of colonic mucosa structure was alleviated, the infiltration of inflammatory cells decreased, and the number of goblet cells increased. LPS and DAO levels were decreased (P<0.05, P<0.01). In the colon, the relative fluorescence intensity of FXR increased, while that of p-MLC decreased (P<0.05, P<0.01). The protein and mRNA expression levels of ZO-1, Claudin-1, JAM-1, Occludin, and FXR increased significantly (P<0.05, P<0.01), while the protein expression of MLCK and p-MLC decreased significantly (P<0.05, P<0.01). Furthermore, the mRNA expression of MLCK and MLC decreased significantly (P<0.05, P<0.01), and the protein expression of MUC2 increased significantly (P<0.05, P<0.01). The expression of MUC2 mRNA in each dose group of Zhengan Xifengtang increased significantly (P<0.05, P<0.01). ConclusionZhengan Xifengtang may regulate the FXR-MLCK/p-MLC signaling pathway and enhance the expression of tight junction protein, thereby reducing intestinal mucosal permeability, promoting mucosal barrier repair, decreasing LPS release into the blood, and ultimately lowering blood pressure.
2.Effect of Zhengan Xifengtang on Intestinal Mucosal Barrier in Spontaneously Hypertensive Rats via FXR-MLCK/p-MLC Pathway
Meilong SI ; Hua JIN ; Yu WANG ; Qiuju ZHANG ; Tao LIU ; Yun YONG ; Xuan BAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(21):1-10
ObjectiveTo investigate the repair effects of Zhengan Xifengtang on intestinal mucosal barrier in spontaneously hypertensive rats (SHRs) through the pathways of farnesoid X receptor (FXR)-myosin light chain kinase (MLCK)/phosphorylated myosin light chain (p-MLC) and its potential mechanism. MethodsForty 10-week-old male SHRs were randomly divided into model group, amlodipine besylate group (0.5 mg·kg-1·d-1), and high, middle and low dose groups of Zhengan Xifengtang (34.5, 17.25, 8.625 g·kg-1·d-1); eight age-matched male Wistar-Kyoto (WKY) rats of the same origin served as the normal control group. Drug intervention was carried out for 8 weeks, and the blood pressure of the rats was measured regularly. After the intervention, the rats were euthanized to collect tissue samples. Hematoxylin and eosin (HE) staining and Alcian blue-periodic acid-Schiff (AB-PAS) staining were used to evaluate the pathological morphology and the number of goblet cells in colonic mucosa. Enzyme-linked immunosorbent assay (ELISA) was employed to measure plasma lipopolysaccharide (LPS) and diamine oxidase (DAO) levels in each group of rats. Immunofluorescence (IF) assay was used to detect the relative fluorescence intensity of FXR and p-MLC in colonic tissue. Western blot was used to detect the zonula occludens-1 (ZO-1), Occludin, Claudin-1, junctional adhesion molecule-1 (JAM-1), mucin-2 (MUC2), FXR, MLCK, and p-MLC protein expression in colon tissue. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect mRNA expression levels of ZO-1, Occludin, Claudin-1, JAM-1, MUC2, FXR, MLCK, and MLC in colon tissue. ResultsCompared with the normal group, the blood pressure in the model group increased significantly (P<0.01), the colonic mucosal structure was seriously damaged, and the number of goblet cells decreased significantly. The contents of LPS and DAO increased significantly (P<0.01), the relative fluorescence intensity of FXR in colon decreased, while that of p-MLC increased (P<0.01). The protein and mRNA expressions of ZO-1, Claudin-1, JAM-1, Occludin, MUC2 and FXR decreased significantly (P<0.01), whereas the protein expression of MLCK and p-MLC increased significantly (P<0.01). Additionally, the mRNA expression of MLCK and MLC increased significantly (P<0.01). Compared with the model group, the Zhengan Xifengtang groups at various dosages and the amlodipine besylate group showed significantly reduced blood pressure (P<0.01). The damage of colonic mucosa structure was alleviated, the infiltration of inflammatory cells decreased, and the number of goblet cells increased. LPS and DAO levels were decreased (P<0.05, P<0.01). In the colon, the relative fluorescence intensity of FXR increased, while that of p-MLC decreased (P<0.05, P<0.01). The protein and mRNA expression levels of ZO-1, Claudin-1, JAM-1, Occludin, and FXR increased significantly (P<0.05, P<0.01), while the protein expression of MLCK and p-MLC decreased significantly (P<0.05, P<0.01). Furthermore, the mRNA expression of MLCK and MLC decreased significantly (P<0.05, P<0.01), and the protein expression of MUC2 increased significantly (P<0.05, P<0.01). The expression of MUC2 mRNA in each dose group of Zhengan Xifengtang increased significantly (P<0.05, P<0.01). ConclusionZhengan Xifengtang may regulate the FXR-MLCK/p-MLC signaling pathway and enhance the expression of tight junction protein, thereby reducing intestinal mucosal permeability, promoting mucosal barrier repair, decreasing LPS release into the blood, and ultimately lowering blood pressure.
3.Study on Kinetic and Static Tasks With Different Resistance Coefficients in Post-stroke Rehabilitation Training Based on Functional Near-infrared Spectroscopy
Ling-Di FU ; Jia-Xuan DOU ; Ting-Ting YING ; Li-Yong YIN ; Min TANG ; Zhen-Hu LIANG
Progress in Biochemistry and Biophysics 2025;52(7):1890-1903
ObjectiveFunctional near-infrared spectroscopy (fNIRS), a novel non-invasive technique for monitoring cerebral activity, can be integrated with upper limb rehabilitation robots to facilitate the real-time assessment of neurological rehabilitation outcomes. The rehabilitation robot is designed with 3 training modes: passive, active, and resistance. Among these, the resistance mode has been demonstrated to yield superior rehabilitative outcomes for patients with a certain level of muscle strength. The control modes in the resistance mode can be categorized into dynamic and static control. However, the effects of different control modes in the resistance mode on the motor function of patients with upper limb hemiplegia in stroke remain unclear. Furthermore, the effects of force, an important parameter of different control modes, on the activation of brain regions have rarely been reported. This study investigates the effects of dynamic and static resistance modes under varying resistance levels on cerebral functional alterations during motor rehabilitation in post-stroke patients. MethodsA cohort of 20 stroke patients with upper limb dysfunction was enrolled in the study, completing preparatory adaptive training followed by 3 intensity-level tasks across 2 motor paradigms. The bilateral prefrontal cortices (PFC), bilateral primary motor cortices (M1), bilateral primary somatosensory cortices (S1), and bilateral premotor and supplementary motor cortices (PM) were examined in both the resting and motor training states. The lateralization index (LI), phase locking value (PLV), network metrics were employed to examine cortical activation patterns and topological properties of brain connectivity. ResultsThe data indicated that both dynamic and static modes resulted in significantly greater activation of the contralateral M1 area and the ipsilateral PM area when compared to the resting state. The static patterns demonstrated a more pronounced activation in the contralateral M1 in comparison to the dynamic patterns. The results of brain network analysis revealed significant differences between the dynamic and resting states in the contralateral PFC area and contralateral M1 area (F=4.709, P=0.038), as well as in the contralateral PM area and ipsilateral M1 area (F=4.218, P=0.049). Moreover, the findings indicated a positive correlation between the activation of the M1 region and the increase in force in the dynamic mode, which was reversed in the static mode. ConclusionBoth dynamic and static resistance training modes have been demonstrated to activate the corresponding brain functional regions. Dynamic resistance modes elicit greater oxygen changes and connectivity to the region of interest (ROI) than static resistance modes. Furthermore, the effects of increasing force differ between the two modes. In patients who have suffered a stroke, dynamic modes may have a more pronounced effect on the activation of exercise-related functional brain regions.
4.Care of the bedridden patient.
Xuan Yong LEE ; Jeffrey JIANG ; Li Feng TAN
Singapore medical journal 2025;66(4):215-220
5.Clinics in diagnostic imaging (223).
Wai Keat LAU ; Natalie Li Xuan LIM ; Ivandito KUNTJORO ; Lynette Li San TEO
Singapore medical journal 2025;66(6):343-347
6.Auricular electroacupuncture for post-stroke dysphagia in pharyngeal phase: a randomized controlled trial.
Xiangliang LI ; Yuhong ZHANG ; Haipeng JIN ; Ling GAO ; Xuan ZHUANG ; Yong WANG ; Youhong JI
Chinese Acupuncture & Moxibustion 2025;45(12):1705-1710
OBJECTIVE:
To observe the clinical efficacy of auricular electroacupuncture for post-stroke dysphagia in the pharyngeal phase.
METHODS:
Eighty-two patients with post-stroke dysphagia in the pharyngeal phase were randomized into an auricular electroacupuncture group (41 cases) and a swallowing electrical stimulation group (41 cases, 1 case dropped out). In the auricular electroacupuncture group, electroacupuncture was applied at auricular points, i.e. Xin (CO15) and Yanhou (TG3), using disperse-dense wave, in frequency of 2 Hz/10 Hz, 30 min a time. In the swallowing electrical stimulation group, swallowing electrical stimulation was delivered for 30 min a time. Both groups were treated once daily for 4 weeks. The functional oral intake scale (FOIS) grade, as well as the hyolaryngeal complex displacement, the pharyngeal constriction rate (PCR) and the pharyngeal delay time (PDT) under video fluoroscopic study of swallowing (VFSS) were observed before and after treatment, and the clinical efficacy was evaluated in the two groups.
RESULTS:
Compared before treatment, the FOIS grade was improved (P<0.01), the forward and upward displacement amplitude of hyoid bone and thyroid cartilage was increased (P<0.05), and the PCR and PDT were decreased (P<0.05) after treatment in the two groups. After treatment, compared with the swallowing electrical stimulation group, the FOIS grade was superior (P<0.01), the upward displacement amplitude of hyoid bone and thyroid cartilage was larger (P<0.05) and the PCR and PDT were lower (P<0.05) in the auricular electroacupuncture group. The total effective rate was 85.4% (35/41) in the auricular electroacupuncture group, which was higher than 62.5% (25/40) in the swallowing electrical stimulation group (P<0.05).
CONCLUSION
Auricular electroacupuncture can effectively trigger pharyngeal initiation and improve post-stroke dysphagia in the pharyngeal phase.
Humans
;
Electroacupuncture
;
Male
;
Deglutition Disorders/etiology*
;
Female
;
Middle Aged
;
Aged
;
Stroke/physiopathology*
;
Pharynx/physiopathology*
;
Acupuncture, Ear
;
Acupuncture Points
;
Deglutition
;
Treatment Outcome
;
Adult
8.Changes in Esophageal Cancer Survival: A Global Review of Survival Analysis from Cancer Registration Data over the Past Three Decades.
Zhuo Jun YE ; Dan Ni YANG ; Yu JIANG ; Yu Xuan XIAO ; Zhuo Ying LI ; Yu Ting TAN ; Hui Yun YUAN ; Yong Bing XIANG
Biomedical and Environmental Sciences 2025;38(5):571-584
OBJECTIVE:
To describe survival trends and global patterns of esophageal cancer (EC) using survival data from population-based cancer registries.
METHODS:
We systematically searched PubMed, EMBASE, Web of Science, SEER, and SinoMed databases for articles published up to 31 December 2023. Eligible EC survival estimates were evaluated according to country or region, period, sex, age group, pathology, and disease stage.
RESULTS:
After 2010, Jordan exhibited the highest age-standardized 5-year relative survival rates (RSRs)/net survival rates (NSRs) at 41.1% between 2010 and 2014, while India had the lowest, at 4.1%. Survival rates generally improved with diagnostic age across most countries, with significant increases in South Korea and China, of 12.7% and 10.5% between 2000 and 2017, respectively. Survival was higher among women compared to men, ranging from 0.4%-10.9%. Survival rates for adenocarcinoma and squamous cell carcinoma were similar, differing by about 4%. In China, the highest age-standardized RSRs/NSRs was 33.4% between 2015 and 2017. Meanwhile, the lowest was 5.3%, in Qidong (Jiangsu province) between 1992-1996.
CONCLUSION
Global EC survival rates have improved significantly in recent decades, but substantial geographical, sex, and age disparities still exist. In Asia, squamous cell carcinoma demonstrated superior survival rates compared to adenocarcinoma, while the opposite trend was observed in Western countries. Future research should clarify the prognostic factors influencing EC survival and tailor prevention and screening strategies to the changing EC survival patterns.
Humans
;
Esophageal Neoplasms/mortality*
;
Registries
;
Male
;
Female
;
Survival Analysis
;
Middle Aged
;
Survival Rate
;
Aged
;
Global Health
9.Comparative Transcriptomic and Metabolomic Analyses Reveal the Mechanism by Which Foam Macrophages Restrict Survival of Intracellular Mycobacterium Tuberculosis.
Xiao PENG ; Yuan Yuan LIU ; Li Yao CHEN ; Hui YANG ; Yan CHANG ; Ye Ran YANG ; Xuan ZHANG ; An Na JIA ; Yong Bo YU ; Yong Li GUO ; Jie LU
Biomedical and Environmental Sciences 2025;38(7):781-791
OBJECTIVES:
This study aimed to investigate the impact of foam macrophages (FMs) on the intracellular survival of Mycobacterium tuberculosis (MTB) and identify the molecular mechanisms influencing MTB survival.
METHODS:
An in vitro FM model was established using oleic acid induction. Transcriptomic and metabolomic analyses were conducted to identify the key molecular pathways involved in FM-mediated MTB survival.
RESULTS:
Induced FMs effectively restricted MTB survival. Transcriptomic and metabolomic profiling revealed distinct changes in gene and metabolite expression in FMs during MTB infection compared with normal macrophages. Integrated analyses identified significant alterations in the cyclic adenosine monophosphate (cAMP) signaling pathway, indicating that its activation contributes to the FM-mediated restriction of MTB survival.
CONCLUSIONS
FMs inhibit MTB survival. The cAMP signaling pathway is a key contributor. These findings enhance the understanding of the role of FMs in tuberculosis progression, suggest potential targets for host-directed therapies, and offer new directions for developing diagnostic and therapeutic strategies against tuberculosis.
Mycobacterium tuberculosis/physiology*
;
Transcriptome
;
Metabolomics
;
Foam Cells/microbiology*
;
Humans
;
Metabolome
;
Tuberculosis/microbiology*
;
Gene Expression Profiling
10.Association of Longitudinal Change in Fasting Blood Glucose with Risk of Cerebral Infarction in a Patients with Diabetes.
Tai Yang LUO ; Xuan DENG ; Xue Yu CHEN ; Yu He LIU ; Shuo Hua CHEN ; Hao Ran SUN ; Zi Wei YIN ; Shou Ling WU ; Yong ZHOU ; Xing Dong ZHENG
Biomedical and Environmental Sciences 2025;38(8):926-934
OBJECTIVE:
To investigate the association between long-term glycemic control and cerebral infarction risk in patients with diabetes through a large-scale cohort study.
METHODS:
This prospective, community-based cohort study included 12,054 patients with diabetes. From 2006 to 2012, 38,272 fasting blood glucose (FBG) measurements were obtained from these participants. FBG trajectory patterns were generated using latent mixture modelling. Cox proportional hazards models were applied to assess the subsequent risk of cerebral infarction associated with different FBG trajectory patterns.
RESULTS:
At baseline, the mean age of the participants was 55.2 years. Four distinct FBG trajectories were identified based on FBG concentrations and their changes over the 6-year follow-up period. After a median follow-up of 6.9 years, 786 cerebral infarction events were recorded. Different trajectory patterns were associated with significantly varied outcome risks (Log-Rank P < 0.001). Compared with the low-stability group, Hazard Ratio ( HR) adjusted for potential confounders were 1.37 for the moderate-increasing group, 1.23 for the elevated-decreasing group, and 2.08 for the elevated-stable group.
CONCLUSION
Sustained high FBG levels were found to play a critical role in the development of ischemic stroke among patients with diabetes. Controlling FBG levels may reduce the risk of cerebral infarction.
Humans
;
Cerebral Infarction/blood*
;
Middle Aged
;
Male
;
Female
;
Blood Glucose/analysis*
;
Fasting/blood*
;
Aged
;
Prospective Studies
;
Risk Factors
;
Diabetes Mellitus/blood*
;
Adult
;
Proportional Hazards Models

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