1.Effects of electroacupuncture on the expression of metabolic enzymes and autophagy genes in gastrocnemius muscle tissues of exercising rats
Rongfa ZHENG ; Weibin MO ; Peng HUANG ; Junji CHEN ; Ting LIANG ; Fangyu ZI ; Guofeng LI
Chinese Journal of Tissue Engineering Research 2025;29(6):1127-1136
BACKGROUND:Acute exercise tends to cause skeletal muscle tissue damage and lipid metabolism disorders in vivo,but the mechanism by which acute exercise combined with electroacupuncture modulates metabolic and autophagic pathways in vivo is unclear. OBJECTIVE:To observe the changes in metabolic enzymes and autophagy levels in skeletal muscle of rats subjected to acute exercise by electroacupuncture at the acupoints of"Zusanli"and"Huantiao." METHODS:Fifty male Sprague-Dawley rats were randomly divided into three groups:quiet control group(n=10),model group(n=20),and reverse electroacupuncture group(n=20).The latter two groups were set up with two time points,i.e.immediate and 3 hours after exercise groups(n=10 per time point).The model group and the reverse electroacupuncture group underwent acute exercise training after adaptive treadmill training.The rats in the reverse electroacupuncture group underwent electroacupuncture treatment(parameters:electroacupuncture on both sides of the rats at the acupoints of"Zusanli"and"Huantiao,"continuous wave,frequency of 2 Hz,intensity of 2 mA,leaving the needle in the body for 30 minutes,once a day for 7 consecutive days)before treadmill training.Bilateral gastrocnemius muscle tissues were taken under anesthesia immediately after exercise and 3 hours after exercise,and hematoxylin-eosin staining was used to observe the histopathological changes of rat skeletal muscle.ELISA kit was used to detect the activities of hepatic lipase,fatty acid synthase,hormone-sensitive lipase,and carnitine palmitoyltransferase 1 in rat skeletal muscle tissues.Immunohistochemistry and western blot were used to detect the changes in the expression of autophagy genes. RESULTS AND CONCLUSION:After hematoxylin-eosin staining,the arrangement of gastrocnemius muscle fibers in the model group was disturbed,swollen and ruptured immediately after exercise and 3 hours after exercise.In the reverse electroacupuncture group,gastrocnemius muscle fibers were tightly arranged and the number of swollen and ruptured cells was greatly reduced immediately after exercise and 3 hours after exercise,and there was no significant difference when compared with the quiet control group.Compared with the quiet control group,the activities of hepatic lipase and fatty acid synthase were lower while the activities of lipoprotein lipase,hormone-sensitive lipase,and carnitine palmitoyltransferase 1 were higher in the model group and the reverse electroacupuncture group 3 hours after exercise(P<0.05 or P<0.01).Compared with the model group,the activities of lipoprotein lipase and carnitine palmitoyltransferase 1 were higher in the reverse electroacupuncture group immediately after exercise(P<0.05),while the activity of lipoprotein lipase was higher and the activity of hormone-sensitive lipase was lower in the reverse electroacupuncture group 3 hours after exercise(P<0.01).Immunohistochemical results showed that compared with the quiet control group,the expression of P62,autophagy-related gene 5 and autophagy-related gene 7 was higher in the model group immediately and 3 hours after exercise,as well as in the reverse electroacupuncture group immediately after exercise(P<0.05 or P<0.01);compared with the model group,the expression of P62 and autophagy-related gene 7 was lower in the reverse electroacupuncture group immediately and 3 hours after exercise(P<0.05).Western blot results showed that the protein expression of P62 and autophagy-related gene 7 in the reverse electroacupuncture group was lower than that in the model group immediately after exercise(P<0.05);the protein expression of Parkin in the model group was higher than that in the quiet control group immediately and 3 hours after exercise(P<0.05);and the protein expression of Parkin in the reverse electroacupuncture group was lower than that in the model group immediately and 3 hours after exercise(P<0.05).To conclude,acute exercise induces disorders,swelling and rupture of gastrocnemius muscle fibers in rats and electroacupuncture on both sides of the acupoints of"Zusanli"and"Huantiao"can improve the level of lipid metabolism and regulate autophagy cells in rat skeletal muscle,preventing the disorders of lipid metabolism and damage of gastrocnemius muscle tissues caused by acute exercise.The mechanism may be closely related to the regulation of autophagy-related factor P62,autophagy-related gene 5,autophagy-related gene 7,and Parkin protein expression to promote the occurrence of autophagy or regulate the autophagy pathway in rat skeletal muscle cells.
2.Analysis of the disputed opinions in forensic clinical judicial expertise and their causes
Xiaoying YU ; Qing XIA ; Fangyu ZHAO ; Wentao XIA
Chinese Journal of Forensic Medicine 2025;40(1):12-18
Through a comprehensive analysis of four cases involving repeated forensic clinical identification on the degree of human injury,disability grade,causal relationship of injury and disease,medical damage liability dispute,the reasons for the emergence of different appraisal opinions are explored.According to the reasons for the disputed conclusion,the deviation or error of the appraisal opinion can be classified in a variety of ways.Among them,the inherent limitations of theories and methods used as appraisal bases,the lack of operational skills or cognitive ability of appraisers,the unclear provisions of appraisal standards and the lack of adequacy and validity in the process of analysis and reasoning are the key reasons for the deviation or error of appraisal opinions.In light of these findings,it is necessary to strengthen the review of expert opinions in judicial practice and form a powerful error correction mechanism.
3.Total saponins of Trillium tschonoskii Maxim alleviate neuronal damage in vascular dementia rats by regulating Shh signaling pathway
Jianhong GAO ; Yawen CHEN ; Chaoxi TIAN ; Hong ZHU ; Fangyu ZHAO ; Yiduo HE ; Xin LIU ; Xianbing CHEN
Chinese Journal of Pathophysiology 2025;41(2):354-361
AIM:To observe the neuroprotective effects of total saponins of Trillium tschonoskii Maxim(TST)on rats with vascular dementia(VD)and explore the drug's impact on astrocytes and the Sonic Hedgehog(Shh)pathway as well as its mechanisms of action.METHODS:A rat model of vascular dementia was established by bilateral common carotid artery occlusion.Subsequently,the rats were randomly divided into four groups:donepezil hydrochloride group,TST group,model group,and sham group,with 18 rats in each group.After 5 weeks of gavage,samples were collected.Cognitive function was evaluated by the water maze test.Histopathological changes in brain tissue were examined with HE and Nissl staining.The ultrastructure of astrocytes was analyzed by transmission electron microscopy.The localization and expression of the neuronal nuclear antigen(NeuN),glial fibrillary acidic protein(GFAP),Shh,and glioma-associated oncogene homolog 1(Gli1)were identified using immunohistochemistry.Immunofluorescence was also employed to exam-ine the expression of NeuN and GFAP.Finally,Western blot analysis was used to measure the protein levels of NeuN,GFAP,Shh,Patched 1(Ptch1),Gli1,Bax,Bcl-2,tumor necrosis factor-α(TNF-α),and interleukin-10(IL-10)in the hippocampus.RESULTS:Compared to the sham group,the model rats demonstrated prolonged escape latency,disorga-nized and loosened neuronal arrangement in the hippocampus and cortex,reduced Nissl bodies,and significant neuronal damage.Astrocytes displayed chromatin aggregation,swollen mitochondria with disrupted cristae structures,and swollen endoplasmic reticulum regions.The expression of NeuN,Shh,and Gli1 positive cells significantly decreased,while GFAP positive cells significantly increased.Additionally,the protein levels of NeuN,Shh,Ptch1,Gli1,IL-10,and Bcl-2 in the hippocampus were reduced(P<0.05),whereas those of GFAP,Bax,and TNF-α were elevated(P<0.01).Com-pared to the model group,the donepezil hydrochloride and TST groups effectively improved the aforementioned indicators.CONCLUSION:Total saponins of trillium tschonoskii maxim can effectively alleviate pathological damage to neurons in VD rats,thereby improving learning and memory abilities.The underlying mechanisms may involve inhibiting the overacti-vation of astrocytes,activate the Shh/Ptch1/Gli1 signaling pathway,suppress neuroinflammation,and reduce neuronal apoptosis.
4.Mianserin-induced restless arm syndrome in an elderly female patient with depression:A case report
Fangyu LI ; Bowen SONG ; Zhe LI
Chinese Journal of Nervous and Mental Diseases 2025;51(9):549-551
Restless legs syndrome(RLS)occasionally occurs during the treatment of depression;however,restless arms syndrome,which manifests solely as or predominantly as discomfort in the upper limbs,is quite rare.This article reports a case of an elderly female patient with depression who developed nocturnal pain in the right upper limb and an urge to move it following the administration of mianserin.After increasing the dosage of mianserin,these symptoms worsened significantly which led to a diagnosis of restless arm syndrome.The above-mentioned discomfort disappeared after mianserin was discontinued.Since restless arm syndrome caused by mianserin is relatively rare,this case is presented to alert clinicians.
5.Mechanisms of Selenoproteins in Inflammatory Bowel Disease
Xiaoyue FENG ; Ying KANG ; Kang JIANG ; Chunyan CHEN ; Weijun XU ; Fangyu WANG
Chinese Journal of Gastroenterology 2025;30(1):47-51
Selenium is an essential trace element for human body.The primary functional form of selenium in the organism is selenoproteins(Sep),which plays a crucial role in maintaining normal physiological functions,influencing immune responses,and is also implicated in tumorigenesis and related metabolic disorders.Recent studies have shown that Sep is involved in the pathophysiological process of inflammatory bowel disease(IBD).This article reviewed the mechanisms of Sep in IBD,aiming to explore the pathogenic mechanisms of IBD and provide insights for the diagnosis and treatment of the disease.
6.Anti-inflammatory mechanism of Juhongtai formula granules in improving acute lung injury in rats based on component-target-pathway analysis
Fangyu LIANG ; Yulei CHEN ; Leilei CHEN ; Jingjing YU ; Fengping HUANG ; Ke HUANG ; Fengxia XIAO
Immunological Journal 2025;41(8):541-550
Objective To investigate the key targets and pathways of Juhongtai formula granules in improving acute lung injury(ALI).Methods Juhongtai formula granules and their drug-containing serum components were analyzed by UPLC-QTOF-MS/MS,and the active ingredients were screened based on the"Lipinski Rule of Five".The action targets of the above active ingredients were obtained through the TCMSP,Swiss Target Prediction and SuperPred databases,and the ALI-related targets were obtained from the GeneCards,OMIM,PharmGKB,CTD databases and GEO chip.The target protein-protein interaction network was constructed using the String database and Cytoscape to analyze the key targets.The DAVID database was used for GO functional annotation and KEGG pathway enrichment analysis,and the CB-dock2 platform was used for molecular docking verification.After one week of adaptive feeding,the experimental SD rats were randomly divided into the blank group,the model group,the positive control group,the negative control group and the Juhongtai formula granules group,with 6 rats in each group.The rat model of ALI was replicated by tracheal infusion of lipopolysaccharide.The pathological morphology of lung tissues in each group of rats was observed by HE staining,and the mRNA expressions of tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),interleukin-1 β(IL-1β)and nitric oxide were detected by reverse transcription quantitative polymerase chain reaction(RT-qPCR).Results In total,44 components of the Juhongtai formula granules were identified,including 26 drug-containing serum components,and 21 key compounds were screened.A total of 22 intersection targets were obtained.The pathway enrichment results indicated the action of these targets on the advanced glycation end product receptor(AGE-RAGE)and TNF signaling pathways.The docking results showed that limonin,kaempferol and naringenin could be matched with prostaglandin peroxidase 2,nitric oxide synthase 2 and TNF.Animal experiments confirmed that the Juhongtai formula granules can alleviate inflammatory infiltration in lung tissue and reduce the expressions of TNF-α,IL6,IL-1β mRNA and nitric oxide.Conclusion Juhongtai formula granules can inhibit ALI-related inflammatory targets through the synergistic effects of multiple components such as limonin and kaempferol,regulate signaling pathways such as AGE-RAGE and TNF,reduce the production of inflammatory factors and nitric oxide,and improve ALI.
7.Risk prediction models for readmission in patients after percutaneous coronary intervention: a systematic review and critical appraisal
Yanan LI ; Xiujie SUN ; Wenxin SUN ; Xiuyan LU ; Fangyu XIE
Chinese Journal of Practical Nursing 2025;41(3):197-205
Objective:To systematically evaluate the risk prediction model for readmission in patients after percutaneous coronary intervention, and to provide reference for medical staff to apply or optimize relevant risk assessment tools.Methods:China National Knowledge Infrastructure, VIP, Wanfang Data, China Biomedical Literature Database, and Cochrane Library, PubMed, Embase, CINAHL, Scopus and Web of Science were searched for the related studies on readmission risk prediction models in patients with percutaneous coronary intervention from the establishment of the databases to April 25, 2024. Two researchers independently screened the literature, extracted data, and evaluated the risk of bias in the included studies.Results:A total of eleven articles were included, involving sixteen readmission risk prediction models, with readmission rates ranging from 0.70% to 31.44% and the areas under subjects′working characteristic curves ranging from 0.604 to 0.899. Calibration methods were reported in ten models, five studies reported processing methods of missing data, and external validation was used in three studies. The overall risk of bias was higher. The top six predictors of repeated reports in the readmitted model were age, renal insufficiency, sex, congestive heart failure, diabetes and health insurance.Conclusions:The readmission risk prediction models had good predictive performance. However, the quality of the model methodology was limited. It is necessary to improve the research quality in data sources, measurement and definition of predictive factors, processing of missing data and model evaluation. In the future, data mining can be used to apply the readmission prediction model in the early stage of admission, so as to identify high-risk patients as early as possible and effectively prevent the occurrence of readmission.
8.Comparison of the efficacy of modified rivet double pulley fixation and Kirschner wire tension band fixation for inferior pole patella fractures
Fangyu MEI ; Yongjiang LI ; Sunpeng BAI
Journal of Clinical Surgery 2025;33(3):325-328
Objective To compare the clinical effects of improved rivet double pulley fixation method and traditional Kirschner wire tension band in the treatment of patellar lower pole fractures.Methods 78 patients with patellar inferior pole fractures who underwent surgery in our department between January 2020 and January 2024 and met the inclusion criteria were collected.Divided into two groups according to different fixing methods,the observation group(39 cases)were fixed by modified rivet double pulley,the control group(39 cases)were fixed by steel wire tension band.The operation time,hospital stay,medical expenses,knee motion of the two groups at 1.5 months,3 months and 6 months after surgery,and knee lyshom function score at 3 months and 6 months after surgery were compared between the two groups.Results The observation group had a surgery time of(62.58±6.37)minutes compared to the control group[(60.20±11.18)minutes],and the observation group had a hospital stay of(6.45±1.35)days compared to the control group[(6.40±1.30)days].There was no significant difference in surgical time and hospitalization time between the two group(P>0.05).The total medical expenses of the observation group were significantly lower than those of the control group(P<0.05).Knee joint activity in observation group was higher than that in control group at 1.5 months,3 months and 6 months after surgery(P<0.05),and knee lyshom function scores in observation group at 3 months and 6 months after surgery were significantly higher than those in control group(P<0.0 5).Conclusion Compared with Kirschner wire tension band fixation for the treatment of patellar lower pole fractures,the improved riveting double pulley surgery does not require secondary surgery to remove internal fixation,resulting in lower overall medical costs,better postoperative knee joint mobility,and better postoperative knee joint function scores.The improved riveting double pulley surgery has more advantages in treating patellar lower pole fractures compared to traditional Kirschner wire tension band fixation.
9.Research progress in effects and mechanisms of dietary pattern interventions in metabolic associated fatty liver disease
Jing SONG ; Shuo JIANG ; Fangyu WAN ; Juan LI ; MUHETA ADINA ; Xinying MIN ; Jingqi ZHOU
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(7):926-933
Metabolic associated fatty liver disease(MAFLD)is a type of fatty liver disease associated with systemic metabolic disorders,and its prevalence has been increasing year by year,becoming a major challenge to global public health.The development of MAFLD is associated with various factors,including obesity,dyslipidemia,diabetes and other factors.Excessive body fat,particularly increased visceral adiposity,contributes to hepatic fat accumulation.Abnormal blood lipid levels can also disrupt liver fat metabolism.The risk of MAFLD in patients with diabetes is greatly increased due to insulin resistance and other problems.Dietary interventions are considered an effective strategy for the prevention and treatment of MAFLD.In recent years,several dietary patterns,such as low-carbohydrate diets,intermittent fasting,and the Mediterranean diet,have been applied in clinical practice.Their primary mechanisms include reducing oxidative stress,regulating gut microbiota,and inducing fat autophagy.However,the responses to different dietary patterns vary among individuals due to differences in genes,lifestyle,and disease severity.Therefore,systematically evaluating the effects and mechanisms of these dietary patterns in the prevention and treatment of MAFLD has significant clinical importance.This review compares the effects of different dietary patterns on improving liver function,hepatic fat content,blood glucose,and lipid levels,and analyzes their underlying mechanisms of intervention,to explore how to select personalized dietary strategies based on individual differences.It is intended to provide new insights for the precise prevention and treatment of MAFLD,thereby improving patients' outcomes and alleviating the burden on public health.
10.Risk factors for Crohn's disease-like pouch in ulcerative colitis patients with ileal pouch-anal anastomosis
Yinan YAN ; Juan WEI ; Zhao YANG ; Ya YANG ; Hui TAO ; Liuying LI ; Hongqin WANG ; Yuanyi ZHAO ; Feng ZHU ; Ji XUAN ; Jianfeng GONG ; Fangyu WANG
Chinese Journal of Inflammatory Bowel Diseases 2025;09(3):211-217
Objective:To explore the incidence of Crohn's disease-like pouch (CDP) after ileal pouch-anal anastomosis (IPAA) and analyze the clinical characteristics and risk factors in ulcerative colitis (UC) patients.Methods:A retrospective cohort study was conducted. One hundred and eighty-two UC patients undergoing IPAA at Jinling Hospital affiliated to Nanjing University from November 2003 to November 2024 were enrolled. Patients were categorized into CDP and non-CDP groups. Clinical features and prognosis were compared, and multivariate Cox regression was performed to identify risk factors for CDP.Results:A total of 182 UC patients were included, with a median follow-up time of 45.00 (30.00, 75.25) months. The patients were divided into two groups based on the diagnosis of CDP, with 23 patients (12.64%) in the CDP group and 159 patients (87.30%) in the non-CDP group. Compared to the non-CDP group, patients in the CDP group had a lower body mass index (BMI) ( Z=-2.87, P=0.004), and were more likely to develop early postoperative pouchitis (χ 2=4.50, P=0.034). The median time from ileostomy closure to the development of CDP was 12 .00 (6.00, 28.00) months. Cox regression analysis showed that a preoperative BMI<18.5 kg/m 2 ( HR=2.84, 95% CI: 1.24~6.49, P=0.013) and early postoperative pouchitis ( HR=3.11, 95% CI: 1.22~7.93, P=0.018) were associated with an increased risk of CDP. Conclusions:Preoperative low BMI and pouchitis occurring within 3 months postoperatively are significant risk factors for CDP. Close monitoring and early intervention are recommended for high-risk patients.

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