1.Clinical observation of everolimus combined with letrozole and conventional chemotherapy for metastatic/recurrent endometrial carcinoma
Dongyan BAI ; Yu WU ; Shu ZHANG ; Yanrong WAN
China Pharmacy 2026;37(1):61-65
OBJECTIVE To evaluate the therapeutic effects and safety of everolimus combined with letrozole and conventional chemotherapy for metastatic or recurrent endometrial carcinoma (EC). METHODS The clinical and follow-up data of 156 patients with metastatic or recurrent EC admitted to Nanyang Central Hospital from January 2020 to January 2024 were analyzed retrospectively. They were divided into a control group (77 cases) and an observation group (79 cases) according to different therapeutic regimens. The control group received paclitaxel+carboplatin/cisplatin regimen, and concurrently took Letrozole tablets at a dose of 2.5 mg orally once daily; the observation group took Everolimus tablets 10 mg orally, once a day, in addition to the treatment regimen given to the control group. Each treatment cycle lasted 21 days, and both groups of patients underwent continuous treatment for 6 to 8 cycles. The short-term efficacy indicators (objective response rate and disease control rate), the levels of serum tumor markers [carbohydrate antigen 125, human epididymis protein 4, vascular endothelial growth factor and matrix metalloproteinase-9] and medium- to long-term efficacy indicators [progression-free survival (PFS) and overall survival (OS)] were compared between the two groups. Additionally, the occurrence of toxic and side effects in both groups of patients was recorded. RESULTS The objective response rate (53.16%), disease control rate (89.87%), median PFS (6.47 months) and median OS (10.79 months) of the observation group were significantly higher or longer than those (22.08%, 68.83%, 4.63 months, 8.84 months) of the control group (P<0.05). Compared with before treatment, the levels of serum tumor markers in both groups decreased significantly after 6 cycles of treatment; the above indexes of the observation group were significantly lower than those of the control group (P<0.05). The proportion of patients with stomatitis in the observation group was significantly higher than that of the control group (P<0.05), and there was no statistically significant difference in the proportions of patients experiencing other toxic and side effects, such as leukopenia, between the two groups (P>0.05). CONCLUSIONS The everolimus combined with letrozole and conventional chemotherapy can effectively improve the short-term efficacy and prolong the survival period in patients with metastatic or recurrent EC, but attention should be paid to the occurrence of toxic and side effects, especially stomatitis.
2.Action mechanisms and application pathways of biomaterials in promoting corneal alkali burn repair
Hui XIAO ; Dongyan LI ; Jing JI ; Lizhen WANG
Chinese Journal of Tissue Engineering Research 2025;29(10):2162-2170
BACKGROUND:Traditional treatments for corneal alkali burns are limited,especially in controlling inflammation,preventing neovascularization,and inhibiting corneal scarring.Natural,synthetic,or composite materials provide a wide range of treatment options.However,the mechanism by which biomaterials promote corneal alkali burn repair has not yet been systematically understood. OBJECTIVE:To summarize the current research on biomaterials in promoting corneal alkali burn repair in and outside China,and review the mechanism and application of biomaterials in repairing corneal alkali burn. METHODS:The first author searched"cornea,alkali burn,amniotic membrane,hyaluronic acid,collagen,chitosan,polymer materials"as Chinese keywords and"amniotic membrane,hyaluronic acid,collagen,chitosan,polymer,cornea,alkali burn"as English keywords in PubMed,Web of Science,CNKI,and WanFang databases.According to inclusion and exclusion criteria,76 eligible articles were finally included for review. RESULTS AND CONCLUSION:(1)In the field of corneal alkali burn repair,biomaterials such as amniotic membrane,hyaluronic acid,collagen,chitosan,and degradable polymer materials have been widely studied and applied.Each of these biomaterials has its own characteristics,advantages,and disadvantages,and stands out in different aspects.(2)First and foremost,amniotic membranes are considered one of the most promising biomaterials due to their abundance of bioactive factors.They are biocompatible and can regulate the corneal inflammatory response.However,there are issues with donor shortages and susceptibility to infectious diseases.(3)Hyaluronic acid has good moisturizing properties and biocompatibility,and is able to improve the survival rate of corneal cells and increase corneal transparency.(4)The good biocompatibility and scaffold structure of collagen enable the promotion of corneal cell adhesion and proliferation,as well as the reconstruction of corneal tissue structure.(5)Chitosan is recognized for its good biocompatibility and degradability,making it suitable as a carrier for drug delivery and cell transplantation.(6)Degradable polymer materials have good controllability over degradation and can provide a good support and delivery platform for the repair of corneal alkali burns,but further research is needed on their stability and biocompatibility.(7)Overall,there is currently no single biomaterial that can completely address the repair problem of corneal alkali burns,and each biomaterial has its own specific application scenarios and limitations.(8)Future research directions should focus on further improving the properties and structure of biomaterials,exploring more effective combination applications,and deeply understanding the interaction mechanism between biomaterials and corneal tissue,in order to enhance the therapeutic effect of corneal alkali burns and the quality of life of patients.
3.Clinical features of recompensation in autoimmune hepatitis-related decompensated cirrhosis and related predictive factors
Xiaolong LU ; Lin HAN ; Huan XIE ; Lilong YAN ; Xuemei MA ; Dongyan LIU ; Xun LI ; Qingsheng LIANG ; Zhengsheng ZOU ; Caizhe GU ; Ying SUN
Journal of Clinical Hepatology 2025;41(9):1808-1817
ObjectiveTo investigate the clinical features and outcomes of recompensation in patients with autoimmune hepatitis (AIH)-related decompensated cirrhosis, to identify independent predictive factors, and to construct a nomogram prediction model for the probability of recompensation. MethodsA retrospective cohort study was conducted among the adult patients with AIH-related decompensated cirrhosis who were admitted to The Fifth Medical Center of PLA General Hospital from January 2015 to August 2023 (n=211). The primary endpoint was achievement of recompensation, and the secondary endpoint was liver-related death or liver transplantation. According to the outcome of the patients at the end of the follow-up, the patients were divided into the recompensation group (n=16) and the persistent decompensation group(n=150).The independent-samples t test was used for comparison of normally distributed continuous data with homogeneity of variance, and the Mann-Whitney U rank sum test was used for comparison of non-normally distributed continuous data with heterogeneity of variance; the chi-square test or the Fisher’s exact test was used for comparison of categorical data between groups; the Kaplan-Meier method was used for survival analysis; the Cox proportional-hazards regression model was used to identify independent predictive factors, and a nomogram model was constructed and validated. ResultsA total of 211 patients were enrolled, with a median age of 55.0 years and a median follow-up time of 44.0 months, and female patients accounted for 87.2%. Among the 211 patients, 61 (with a cumulative proportion of 35.5%) achieved recompensation. Compared with the persistent decompensation group, the recompensation group had significantly higher white blood cell count, platelet count (PLT), total bilirubin (TBil), alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bile acid, prothrombin time, international normalized ratio (INR), SMA positive rate, Model for End-Stage Liver Disease (MELD) score, Child-Pugh score, and rate of use of glucocorticoids (all P0.05), as well as significantly lower age at baseline, number of complications, and death/liver transplantation rate (all P0.05). At 3 and 12 months after treatment, the recompensation group had continuous improvements in AST, TBil, INR, IgG, MELD score, and Child-Pugh score, which were significantly lower than the values in the persistent decompensation group (all P0.05), alongside with continuous increases in PLT and albumin, which were significantly higher than the values in the persistent decompensation group (P0.05). The multivariate Cox regression analysis showed that baseline ALT (hazard ratio [HR]=1.067, 95% confidence interval [CI]: 1.010 — 1.127, P=0.021), IgG (HR=0.463,95%CI:0.258 — 0.833, P=0.010), SMA positivity (HR=3.122,95%CI:1.768 — 5.515, P0.001), and glucocorticoid therapy (HR=20.651,95%CI:8.744 — 48.770, P0.001) were independent predictive factors for recompensation, and the nomogram model based on these predictive factors showed excellent predictive performance (C-index=0.87,95%CI:0.84 — 0.90). ConclusionAchieving recompensation significantly improves clinical outcomes in patients with AIH-related decompensated cirrhosis. Baseline SMA positivity, a high level of ALT, a low level of IgG, and corticosteroid therapy are independent predictive factors for recompensation. The predictive model constructed based on these factors can provide a basis for decision-making in individualized clinical management.
4.Professor SUN Shentian's experience in the theoretical basis and practice of Ningshen point.
Yihao ZHOU ; Dongyan WANG ; Rongyu XU ; Danping LI ; Hong HUO ; Ying ZHANG ; Xingyan ZHU ; Shentian SUN
Chinese Acupuncture & Moxibustion 2025;45(3):361-364
The paper introduces Professor SUN Shentian's experience in clinical practice of Ningshen (tranquilizing the mind) point. This point is an empirical point discovered by Professor SUN on the basis of meridian differentiation, nerve function and anatomic location, and in association with the years of clinical practice. The point is located in the prefrontal area, jointed with the distribution of the governor vessel, and responded to the body surface projection area of the frontal pole. It works on regulating the mind, regaining consciousness, improving cognition, alleviating depression, mutually treating physical and mental disorders, as well as unblocking collaterals, regulating the tendons and relieving spasm. This point is widely used in treatment of mental disorders, stroke and extrapyramidal diseases and obtains the reliable therapeutic effect in clinical practice.
Humans
;
Acupuncture Points
;
Acupuncture Therapy/history*
;
China
;
Meridians
;
History, 20th Century
5.SLC1A5 overexpression accelerates progression of hepatocellular carcinoma by promoting M2 polarization of macrophages.
Jinhua ZOU ; Hui WANG ; Dongyan ZHANG
Journal of Southern Medical University 2025;45(2):269-284
OBJECTIVES:
To investigate the clinical significance of SLC1A5 overexpression in pan-cancer and its mechanism for promoting hepatocellular carcinoma (HCC) progression.
METHODS:
We analyzed the correlation of SLC1A5 expression with clinical stage, lymph node metastasis and prognosis in pan-cancer using TCGA and ICGC datasets and explored its association with immune cell infiltration using EPIC, CIBERSORT, and TIMER algorithms. In HCC cell lines, the effects of lentivirus-mediated SLC1A5 overexpression or RNA interference on cell proliferation were examined using CCK-8 assay, and the growth of HCC cell xenografts overexpressing SLC1A5 was observed in nude mice. The effects of SLC1A5 overexpression or silencing in HCC cells on macrophage polarization were evaluated in a cell co-culture system.
RESULTS:
SLC1A5 was mainly localized on cell membrane and was highly expressed in most cancers in association with clinical stage, lymph node metastasis and poor prognosis. SLC1A5 expression was positively correlated with immunity score in 13 cancer types, especially in low-grade glioma (LGG), LIHC and thyroid cancer. SLC1A5 was positively correlated with macrophage infiltration level in LGG and LIHC but negatively correlated with macrophage infiltration in 5 cancers including lung squamous carcinoma, pancreatic carcinoma, and gastric carcinoma. Patients with SLC1A5 overexpression and high level of M2 macrophage infiltration had the worst survival outcomes. SLC1A5 was correlated with immunosuppression-related genes, cytokines, and cytokine receptors, which was the most obvious in LGG and LIHC. SLC1A5 was highly expressed in different HCC cell lines, and its overexpression promoted HCC cell proliferation both in vitro and in nude mice. In the cell co-culture experiment, SLC1A5 was positively correlated with the molecular markers of M2 polarization of macrophages, and its overexpression strongly promoted M2 polarization of the macrophages and inhibited T cell secretion of IFN-γ.
CONCLUSIONS
SLC1A5 expression level is correlated with clinical stage, lymph node metastasis, prognosis, and immune cell infiltration in most cancers, and its overexpression promotes HCC progression by inhibiting T-cell function via promoting M2 polarization of macrophages.
Humans
;
Carcinoma, Hepatocellular/metabolism*
;
Liver Neoplasms/metabolism*
;
Animals
;
Macrophages/cytology*
;
Disease Progression
;
Cell Line, Tumor
;
Mice
;
Amino Acid Transport System ASC/genetics*
;
Cell Proliferation
;
Lymphatic Metastasis
;
Mice, Nude
;
Prognosis
;
Minor Histocompatibility Antigens
6.The gene polymorphism and phenotype of RhD variants among blood donors in Chongqing
Jingyi LIU ; Danli CUI ; Fang WANG ; Meijun LI ; Dong LIU ; Xiaoyan XIE ; Min CHEN ; Weiyi FU ; Dongyan YANG ; Qiaolin ZHANG
Chinese Journal of Blood Transfusion 2024;37(8):879-885
Objective To conduct Rh blood group serological testing and third-generation sequencing(TGS)on 22 RhD variant voluntary blood donors in Chongqing and explore the phenotypic distribution and genotyping of RhD variants in Chongqing.Methods From January to August 2023,individuals who participated in blood donation in our blood center were selected as the study objects.RhD variant phenotype identification was performed using routine serological methods.Once the RhD variants were identified,tests on different antigenic epitopes of RhD were conducted using a D-screen assay kit.Furthermore,after the genomic DNA from 22 RhD variant blood samples was extracted,imbraided primers design and multi-segment amplification and splicing were used to sequence the full-length RHD gene for TGS.The RHD gene sequence was analyzed using SnapGene software.Results Among the 22 RhD variants,8 were DVI type 3(36.36%),with the main mutation of RHD-CE(3-6)-D hybrid allele.Six cases(27.27%)showed partial weak D15 type,with the main mutation of c.845G>A.There were 6 cases of Asia type Del(27.27%),with the main mutation of c.1227G>A.One case was weak D17 type with a mutation of c.340C>T and 1 case speculated to be partial D(c.491A>T,p.Asp164Val,missense mutation).Conclusion The most common RhD variant phenotype among blood donors in Chongqing is DVI type 3,and the full-length haplotype sequence of RHD variant alleles can be obtained by Pacific Bioscience single-molecule real-time sequencing(SMRT).
7.The Association between Screen Time Behavior in Early Childhood,Outdoor Activities and their Interaction with Hyperactive Behavior in Preschool Children
Huiting CHEN ; Yulan WU ; Feixiang ZENG ; Dongyan WEN ; Weiying LIU ; Ruoqing CHEN ; Lvping LI ; Yu JIN
Journal of Sun Yat-sen University(Medical Sciences) 2024;45(6):891-901
[Objective]To investigate the association between screen content and the frequency of screen exposure at the age of one and a half years and hyperactive behavior in preschool,and to explore how the association is affected by the interaction between outdoor activities and screen behaviors,which could provide theoretical basis and feasible solutions for the prevention and intervention of behavioral problems in childhoood.[Methods]The survey was conducted from June 2022 to June 2023 in Huicheng District,Huizhou (China) stratified by whole cluster sampling methods. Parents and teachers of 5648 children in 61 kindergartens were sampled for questionnaire surveys. The Conners Teacher Rating Scale (TRS) was used to investigate hyperactive behavior. A self-administered questionnaire was used to investigate basic demographic information of children,screen content,frequency of screen exposure and outdoor activities at the age of one and a half years. Multivariate logistic regression was used to explore the association between video screen behavior and hyperactive behavior and its interaction with outdoor activities by controlling for covariates such as children's age,gender,and parental education.[Results]Result showed the overall prevalence of 3.2% for hyperactive behavior,2.1% for conduct problems,2.1% for hyperactivity problems,1.3% for inattention-passivity problems,and 0.9% for hyperactivity index. After adjusting for confounding factors,multiple logistic regression analysis showed that screen exposure of "two to four times a week" at one and a half years old was associated with an increased detection rate of hyperactive behaviors in preschool children,with an estimated ORs (95% CI) of 1.682 (1.141,2.480). Daily screen exposure was associated with increased detection rates of hyperactive behavior,conduct problems,hyperactivity issues,inattention-passivity problems,and hyperactivity index in pre-school age. The estimated ORs (95% CI) were 2.136 (1.218,3.746),2.321 (1.185,4.546),2.300 (1.208,4.380),2.776 (1.267,6.085) and 3.640 (1.525,8.687),respectively. But the above associations were not found in children who were engaged in daily outdoor activities at the age of one and a half years (P value for interaction<0.001). No association was found between screen content and hyperactive behavior (P>0.05).[Conclusions]Frequency of screen exposure in early childhood is significantly associated with hyperactive behavior problems in preschool,and outdoor activities could weaken the correlation between high-frequency screen exposure and hyperactive behavior,suggesting that parents and schools should prioritize scientifically guiding children's video viewing behavior and outdoor activities,ensuring a well-arranged daily life,to lay a good foundation for the healthy development of children's behavior.
8.Effect of Dihuang Yinzi Decoction (地黄饮子)on Retinal Insulin Content and Insulin Signaling Pathway Related Protein Expression in Alzheimer's Disease Model Mice
Dongyan WU ; Wanwei GUI ; Xiaodan WANG ; Qinqing LI ; Jinmiao CHAI ; Junlong ZHANG
Journal of Traditional Chinese Medicine 2024;65(15):1593-1601
ObjectiveTo observe the possible mechanism of Dihuang Yinzi Decoction (地黄饮子) for improving cognitive dysfunction in Alzheimer's disease (AD) from the perspective of retina. MethodsForty-five APP/PS1 mice (AD model mice) were randomly divided into model group, Dihuang Yinzi Decoction group, and memantine group, with 15 mice in each group, while 15 wild-type C57BL/6J mice from the same litter were used as blank group. Mice in Dihuang Yinzi Decoction group were given Dihuang Yinzi Decoction 30.03 g/(kg·d) by gavage, mice in the memantine group were given memantine hydrochloride 6.1 mg/(kg·d) by gavage, and mice in the blank group and the model group were given normal saline 2 ml/(kg·d) by gavage for 4 consecutive weeks. Fasting blood glucose was measured weekly. After 4 weeks of intervention, oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were performed; Morris water maze was used to detect the changes in spatial memory ability of mice; glucose oxidase method was used to detect retinal glucose content of mice; enzyme-linked immunosorbent assay (ELISA) was used to detect serum and retinal insulin content of mice, and Homeostatic Model Assessment of insulin resistance (HOMA-IR) was calculated. Hematoxylin-eosin (HE) staining was performed to observe the histopathological changes in the retina, and the retinal thickness and ganglion cell number were counted; protein immunoblotting was performed to detect the retinal pathway-associated proteins [insulin receptor substrate 1 (IRS1), phosphorylated insulin receptor substrate 1 (pIRS1), phosphatidylinositol-3-hydroxykinase (PI3K), protein kinase B (Akt1), phosphorylated protein kinase B (pAkt1)] expression; retinal glucose transporter protein 4 (GLUT4) expression was detected by immunohistochemistry. ResultsCompared with the blank group, fasting blood glucose of mice in the model group at weeks 1, 2, 3, and 4, blood glucose and area under the curve (AUC) at different time point of OGTT and ITT test, fasting serum insulin, and HOMA-IR increased (P<0.05, P<0.01); in the Morris water maze experiment, the escape latency increased from day 3 to day 5, and the number of crossing platforms, the percentage of target quadrant distance, and the percentage of target quadrant time decreased (P<0.05, P<0.01); the outer nuclear layer of the retina became sparse, thinner, and the number of ganglion cells decreases (P<0.01); the expression level of retinal glucose increased, while the expression levels of insulin, pIRS1/IRS1, PI3K/β-Actin, pAkt1/Akt1, and GLUT4 proteins decreased (P<0.01). Compared with the model group, fasting blood glucose at week 4, blood glucose at each time point of the OGTT and ITT tests AUC decreased (P<0.05, P<0.01), and fasting serum insulin and HOMA-IR decreased (P<0.05) in Dihuang Yinzi Decoction group; In the Morris water maze test, the escape latency shortened on day 4 and day 5, number of platform crossings, target quadrant distance as a proportion of total distance, and target quadrant movement time as a proportion of total time decreased (P<0.05, P<0.01); retinal pathological changes alleviated, and retinal thickness and ganglion cell number increased (P<0.01); retinal glucose content decreased, and retinal pIRS1/IRS1, PI3K/β-Actin, and GLUT4 protein expression elevated (P<0.05 or P<0.01). ConclusionsDihuang Yinzi Decoction can improve cognitive dysfunction of Alzheimer's disease, which may be related to regulating retinal insulin content and insulin signaling pathway.
9.Exploring the Mechanism of Action of Jintiange Capsules in Regulating SMSC-Exos miRNA and Articular Chondrocytes mRNA for the Treatment of Osteoarthritis in Rats Based on Transcriptome
Zhichao WANG ; Xue ZHANG ; Xiaofei ZHANG ; Yajun SHI ; Dongyan GUO ; Fei LUAN ; Bingtao ZHAI ; Junbo ZOU ; Puwei YUAN
Chinese Journal of Modern Applied Pharmacy 2024;41(11):1464-1475
OBJECTIVE
To confirm the therapeutic effect of Jintiange capsules on osteoarthritis(OA) and the potential mechanism of synovial mesenchymal stem cell exosomes(SMSC-Exos) and articular chondrocytes(ACs) in the treatment of OA based on high-throughput sequencing technology.
METHODS
Type Ⅱ collagenase-induced OA rats were used for efficacy verification through general behavioral observation, bipedal balance difference experiment, mechanical foot reflex threshold, Micro-CT observation, and Safranin O-Fast Green staining. SMSCs and ACs were cultured in suitable concentration of drug-containing serum, and mRNA sequencing was performed on ACs in the control, model, and Jintiange capsules groups, as well as miRNA sequencing on SMSC-Exos. Differential expressed mRNAs and miRNAs were screened and target genes were predicted. The common differential expressed genes between SMSC and ACs were obtained by intersecting the differential expressed genes, and a miRNA-mRNA regulatory network was constructed using Cytoscape software. The expression trend analysis of common differential expressed genes was conducted, as well as the correlation analysis between differential expressed gene mRNA and miRNA, Micro-CT efficacy indicators, and differential expressed gene mRNA.
RESULTS
Under the pathological state of OA, the expression of miRNA-23a-3p, miRNA-342-3p, miRNA-146b-5p, miRNA-501-3p, and miRNA-214-3p were down-regulated, while miRNA-222-3p, miRNA-30e-3p, miRNA-676-3p, and miRNA-192-5p were up-regulated (P<0.05). The expressions of these miRNAs were significantly reversed after intervention with drug-containing serum of Jintiange capsules. There was a certain correlation between Micro-CT efficacy indicators, mRNA and miRNA.
CONCLUSION
Jintiange capsule has obvious efficacy in the treatment of OA, and its mechanism may be related to the promotion of SMSC-Exos targeting ACs to transport miRNA and then regulate Serpinb10, Ntn1, Il1b, Tgm2, Megf10, Il11, Cd40, Slc15a3, Pou2f2 and other genes.
10.Protective effect and mechanism of icariin against carbon tetrachloride-induced acute liver injury in mice
Dongyan XIAO ; Wei HE ; Zhiying XIAO ; Yue LIAO ; Jiahao MAO ; Yihuai HE ; Zhigang JIANG
Chinese Journal of Tissue Engineering Research 2024;28(23):3654-3660
BACKGROUND:Icariin,with antiinflammatory,antioxygenatory and immunoregulatory effects,can be a potential drug for preventing and treating acute liver injury. OBJECTIVE:To investigate the protective effect and possible mechanism of icariin in mice with acute liver injury induced by carbon tetrachloride. METHODS:Thirty-two Kunming mice were equally and randomly divided into the following groups:normal,model,low-dose icariin and high-dose icariin groups.The low-and high-dose icariin groups were continuously gavaged with icariin(100 and 200 mg/kg,respectively)once a day for 7 continuous days.The normal group and model group were injected with physiological saline(10 mL/kg)at the same time point.After the last administration,all the groups except for the normal group were injected with carbon tetrachloride to induce acute liver injury.The mice were killed 24 hours later,and the liver index was detected.Serum levels of alanine aminotransferase and aspartate aminotransferase were detected by automated biochemical analysis.Tumor necrosis factor α and interleukin 6 levels in serum were detected using ELISA.The levels of superoxide dismutase,glutathione peroxidase and malondialdehyde in liver tissue were detected through a reagent kit.The histopathology changes of the liver were observed by hematoxylin-eosin staining.TUNEL method was used to detect the apoptosis in hepatocytes.Western blot was performed to detect the expression levels of glucose-regulated protein 78 kDa,endoplasmic reticulum stress-related protein(C/-EBP homologous protein),mixed lineage kinase domain-like protein and Caspase-3 in liver tissue. RESULTS AND CONCLUSION:Compared with the normal group,the liver index and serum levels of alanine aminotransferase,aspartate aminotransferase,tumor necrosis factor α and interleukin 6 were increased in the model group(P<0.05).Compared with the model group,the above indexes were decreased in the low-dose and high-dose icariin groups(P<0.05).Compared with the normal group,the activities of superoxide dismutase and glutathione peroxidase in the liver tissue of mice were decreased in the model group(P<0.05)and the level of malondialdehyde was increased(P<0.05).Compared with the model group,the activities of superoxide dismutase and glutathione peroxidase were increased in the low-and high-dose icariin groups(P<0.05)and the level of malondialdehyde was decreased(P<0.05).Hematoxylin-eosin and TUNEL staining showed that mice in the model group had severe structural destruction of liver tissue,extensive necrosis of hepatocytes and high apoptotic rate of hepatocytes,while the structural destruction of liver tissue and the area of necrosis of hepatocytes in the low-and high-dose icariin groups were significantly milder than those in the model group,and the apoptotic rate of hepatocytes was lower than that in the model group(P<0.05).Western blot assay showed that the protein expression of glucose-regulated protein 78 kDa,C/-EBP homologous protein,mixed lineage kinase domain-like protein and Caspase-3 in liver tissue of mice in the model group was increased compared with that in the normal group(P<0.05),while the expression levels of these proteins in liver tissue of mice were significantly reduced after low-and high-dose icariin intervention(P<0.05).To conclude,icariin can produce a protective effect against carbon tetrachloride-induced acute liver injury,and its mechanism may be related to the regulation of endoplasmic reticulum stress and reduction of programmed necrosis.


Result Analysis
Print
Save
E-mail