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1.
China Pharmacy ; (12): 166-171, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1006173

RESUMO

OBJECTIVE To investigate the improvement effects of glycyrrhizin (GL) on Helicobacter pylori (HP)-associated gastritis in rats and its mechanism. METHODS HP-associated gastritis rat model was induced by inoculating with 1×109 cfu/mL HP. The model rats were randomly divided into model group, positive control group (HP standard quadruple group), GL low-dose, medium-dose and high-dose groups (5, 20, 50 mg/kg), with 12 rats in each group. Another 12 healthy rats were selected as normal control group. Except the normal control group and model group were given constant volume of normal saline intragastrically, the other groups were given corresponding drugs intragastrically, once a day, for 30 consecutive days. After administration, rats received 13C urea breath test, and delta-over-baseline (DOB) was recorded; the pathological and cellular morphological changes of gastric mucosa in rats were observed, and pathological scoring was performed; the levels of interleukin-8 (IL-8), IL-1β, tumor necrosis factor-α (TNF-α), reactive oxygen species (ROS) and malondialdehyde (MDA) were detected in gastric mucosa of rats; mRNA expressions of high mobility group box-1 protein (HMGB1) and nuclear factor-κ-B (NF-κB), relative expressions of nitric oxide synthases (iNOS) and HMGB1, the phosphorylation level of NF- κBp65 were also detected in rats. RESULTS Compared with normal control group, the DOB value, histopathological score of gastric mucosa, the levels of IL-8, IL-1β, TNF-α, ROS and MDA, relative expressions of HMGB1 and NF- κB mRNA, relative expressions of iNOS and HMGB1 protein and the phosphorylation level of NF-κB p65 were all increased significantly in model group (P<0.05); the epithelial cells of gastric mucosa in rats were incomplete in structure and decreased in the number, with an increase in cell fragments and vacuoles, and significant cell pyknosis. Compared with model group, the changes of the above indexes in GL groups and positive control group were significantly reversed (P<0.05); the changes in the above indicators in the GL high-dose group were more significant than GL low-dose and medium-dose groups (P<0.05); the pathological changes of gastric mucosal cells in rats had all improved. CONCLUSIONS GL may inhibit inflammation and oxidative stress by inhibiting the activation of HMGB1/NF-κB pathway, thus relieving HP-induced gastric mucosal injury.

2.
Chinese Journal of Biologicals ; (12): 43-50+64, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1006195

RESUMO

@#Objective To study the effect of ankyrin repeat domain 49(ANKRD49)on the migration of human lung adenocarcinoma cell line NCI-H1299 and its mechanism.Methods NCI-H1299 cells were infected with lentivirus vector carrying ANKRD49 gene and shRNA targeting ANKRD49 to construct the cell models stably overexpressing and knocking down ANKRD49. Meanwhile,the control cell models infected with empty lentivirus vector and lentivirus vector with scramble sequences were constructed respectively. The expression levels of ANKRD49 mRNA and protein were detected by real-time fluorescence quantitative PCR and Western blot. The effect of ANKRD49 on cell migration was measured by scratch test. The mRNA and protein levels of matrix metalloproteinase(MMP)-2/9 and tissue inhibitor of metalloproteinase(TIMP)-1/2 were detected by real-time fluorescence quantitative PCR and Western blot. The protein expression levels of p65,p-p65,IκBα and p-IκBα were detected by Western blot.Results The levels of ANKRD49 mRNA and protein in the ANKRD49 overexpression group were significantly higher than those in the control group(t = 70. 02 and 45. 68,respectively,each P < 0. 001). Compared with the control group,the migration ability of cells in the ANKRD49 overexpression group significantly increased at 24 h and 48 h(t = 5. 343 and 3. 282,P = 0. 005 9 and 0. 030 4,respectively);The mRNA transcription levels and protein expression levels of MMP-2 and MMP-9 significantly increased(t = 9. 304 and 6. 193,P =0. 000 7 and 0. 003 5,respectively),while the mRNA and protein expression of TIMP-1 and TIMP-2 decreased significantly(t = 3. 858 and 3. 517,P = 0. 018 2 and 0. 024 5,respectively),and the values of MMP-2/TIMP-1 and MMP-9/TIMP-2 significantly increased(t = 17. 7 and 9. 682,P < 0. 001 and < 0. 01,respectively);The expression of p-p65 and pIκBα significantly increased,the total protein levels of p65 and IκBα showed no obvious change,and the values of p-p65/p65 and p-IκBα/IκBα significantly increased(t = 3. 962 and 5. 370,P = 0. 016 7 and 0. 005 8,respectively). However,knocking down of ANKRD49 presented the opposite results.Conclusion ANKRD49 promotes the migration of NCI-H1299cells by enhan-cing the expression of MMP-2/9,the values of MMP-9/TIMP-1 and MMP-2/TIMP-2 via activating NF-κB/p65 signa-ling pathway.

3.
China Pharmacy ; (12): 296-303, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1006613

RESUMO

OBJECTIVE To investigate the effect of berberine on ferroptosis in MG63 osteosarcoma cells and its mechanism. METHODS Using cells without drug treatment as control, the cell viability, proliferation, the related indexes of ferroptosis [nuclear proliferation associated-antigen (Ki67), mitochondrial ultrastructure, ferric ion (Fe2+), reactive oxygen species (ROS), malondialdehyde (MDA), and glutathione (GSH)], the protein expression of signal transducer and activator of transcription 3 (STAT3), tumor protein 53 (p53), and solute carrier family 7 member 11 (SLC7A11) were detected after being treated with different concentrations of berberine. Cells were transfected with p53 siRNA and then assigned to the control group, p53 siRNA group, berberine group, and p53 siRNA+berberine group to explore the role of p53 in berberine-induced ferroptosis. After 24 h incubation with 10.0 μmol/L berberine, the protein expressions of p53 and SLC7A11, the levels of mitochondrial membrane potential, GSH, and MDA content were determined. Cells were transfected with STAT3 overexpressed plasmid and then assigned to the control group, berberine group, STAT3 group, and STAT3+berberine group to explore the effect of STAT3 on the regulation of the p53/SLC7A11 pathway. After 24 h incubation with 10 μmol/L berberine, the protein expressions of p-STAT3, STAT3, p53, and SLC7A11 were detected. RESULTS Compared with the control cell, the concentrations of 2.5, 5.0 and 10.0 μmol/L berberine could reduce the cell viability and expression of Ki67, and induce the morphological changes in ferroptosis-related mitochondria, increase the levels of Fe2+, ROS and MDA, and the protein expression of p53, reduce the level of GSH, the binding activity of STAT3 with DNA, and the protein expressions of p-STAT3 and SLC7A11; the above differences were statistically significant (P< 0.05 or P<0.01). Compared with the berberine group,significantly down-regulated p53 protein expression and MDA level, up-regulated SLC7A11 protein expression, and increased mitochondrial membrane potential and GSH level were observed in the p53 siRNA+berberine group (P<0.01). Compared with the berberine group, the protein expressions of p-STAT3, STAT3, and SLC7A11 in the STAT3+berberine group were significantly increased (P<0.01), while the protein expression of p53 was significantly decreased (P<0.01). CONCLUSIONS Berberine can induce the ferroptosis of MG63 cells by mediating STAT3/p53/SLC7A11 signaling pathway.

4.
Artigo em Chinês | WPRIM | ID: wpr-1016776

RESUMO

Objective To investigate the effects of chronic starvation stress on the proliferation and migration of colorectal cancer cells, as well as the underlying mechanisms. Methods By using prolonged serum starvation to simulate chronic starvation stress in tumor cells, we established enduring serum-deprived models of SW480 and DLD-1 cells and observed cellular morphological change. Effects of prolonged serum starvation on SW480 and DLD-1 proliferative and migratory capabilities were assessed using CCK-8 and Transwell assays. Differential gene-expression analysis on SW480 cultured with 1% FBS or 10% FBS medium was followed by GO and KEGG pathway assessments. Migration-related protein interactions were explored using String database and Metascape software, leading to 16 genes being selected for RT-qPCR validation. Protein levels of ITGB1 and key molecules in the relevant pathways were measured. Mobility changes in SW480 were observed through Transwell assay after ITGB1 knockdown or STAT3 inhibition. Results Prolonged serum starvation significantly inhibited the proliferation of SW480 and DLD-1 cells, and DLD-1 mobility, while enhanced SW480 migration. Transcriptome analysis revealed that prolonged serum deprivation caused the upregulation of 3016 genes, among which 283 were involved in cell migration. Metascape analysis identified the correlations among potential core genes ITGB1, CD44, TNS1, STAT3, etc. Prolonged serum deprivation increased the mRNA levels of VTN, TNS1, VEGFA, STAT3, and ITGB1 while also increasing the protein levels of ITGB1 and MMP2 and the phosphorylation levels of JAK2 and STAT3. Mobility reduction in prolonged serum-starved SW480 cells was achieved through ITGB1 knockdown or a STAT3 inhibitor. Conclusion Colorectal cancer cells can endure chronic starvation stress which enhances migration capability by upregulating ITGB1 expression.

5.
Artigo em Chinês | WPRIM | ID: wpr-1016843

RESUMO

ObjectiveThe differential expression of microRNAs (miRNAs) between the active stage and the remission stage of ulcerative colitis (UC) was analyzed by bioinformatics method, and the regulatory relationship was constructed by screening the differentially expressed genes (DEGs). The mechanism of Xizhuo Jiedu recipe in the treatment of UC was speculated and verified by animal experiments. MethodThe miRNAs data set of colonic mucosa tissue of UC patients was obtained from the gene expression database (GEO), and the most differentially expressed miRNAs were screened by GEO2R, Excel, and other tools as research objects. TargetScan, miRTarbase, miRDB, STRING, TRRUST, and Matescape databases were used to screen key DEGs, predict downstream transcription factors (TFs), gene ontology (GO), and conduct Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. The key signaling pathways were selected for animal experiments. In animal experiments, the UC mouse model was prepared by making the mouse freely drink 2.5% dextran sodium sulfate (DSS). Xiezhu Jiedu recipe and mesalazine were given by gavage for seven days, and the inflammatory infiltration of colonic mucosa was observed by hematoxylin-eosin (HE) staining. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of miR-155-5p in colon tissue. Immunohistochemistry and Western blot were used to detect the protein expression levels of cytokine signal transduction inhibitor (SOCS1), phosphorylated transcriptional signal transductor and activator 3 (p-STAT3), phosphorylated Janus kinase 2 (p-JAK2), and retinoic acid-associated orphan receptor-γt (ROR-γt). The expression levels of transforming growth factor-β (TGF-β), interleukin-17 (IL-17), interleukin-6 (IL-6), and interleukin-10 (IL-10) in serum were detected by enzyme linked immunosorbent assay (ELISA). ResultThe GSE48957 dataset was screened from the GEO database, and miR-155-5p was selected as the research object from the samples in the active and remission stages. 131 DEGs were screened. The GO/KEGG enrichment analysis was closely related to biological processes such as positive regulation of miRNA transcription and protein phosphorylation, as well as signaling pathways such as stem cell signaling pathway, IL-17 signaling pathway, and helper T cell 17 (Th17) cell differentiation. The Matescape database was used to screen out 10 key DEGs, among which SOCS1 was one of the key DEGs of miR-155-5p. Further screening of the TFS of key DEGs revealed that STAT3 was one of the main TFs of SOCS1. The results of animal experiments showed that Xiezhu Jiedu Recipe could effectively down-regulate the mRNA expression of miR-155-5p and protein expression of p-STAT3, p-JAK2, and ROR-γt in colon tissue of UC mice and the expression of IL-17 and IL-6 in serum of UC mice, up-regulate the protein expression of SOCS1 and the expression of TGF-β and IL-10, increase the level of anti-inflammatory factors, and reduce inflammatory cell infiltration. ConclusionIt is speculated that Xizhuo Jiedu recipe may interfere with SOCS1 by regulating the expression of miR-155-5p in UC mice, inhibit the phosphorylation of STAT3, inhibit the differentiation of CD4+ T cells into Th17 cells, reduce the levels of pro-inflammatory factors (IL-17 and IL-6), and increase the levels of anti-inflammatory factors (TGF-β and IL-10). As a result, the inflammation of colon mucosa in UC mice was alleviated.

6.
Artigo em Chinês | WPRIM | ID: wpr-1017313

RESUMO

Objective:To discuss the regulatory effect of physiological tensile stress on the differentiation of chondrocytes,and to clarify the associated signaling pathway mechanism.Methods:The ATDC5 chondrocytes were cultured in vitro and subjected to physiological tensile stress by four-point bending cell mechanical loading device.Initially,the cells were divided into control group and tensile stress group(2 000 μstrain/2 h group),and further divided into different stress magnitudes(1 000,2 000,and 3 000 μstrain)for 2 h,and 2 000 μstrain for different duration time(1,2,and 4 h)groups;the cells without tensile stress were used as control group.Real-time fluorescence quantitative PCR(RT-qPCR)method was used to detect the expression levels of type Ⅱ collagen(Col-Ⅱ),type Ⅹ collagen(Col-Ⅹ),aggregated proteoglycom(Aggrecan),sex-determining region Y-box protein 9(SOX9),vascular endothelial growth factor(VEGF),proliferating cell nuclear antigen(PCNA),Nel-like molecule tyep 1(Nell-1),Runt-related transcription factor 2(Runx2),Indian hedgehog(Ihh),patched homolog 1(Ptch-1),GLI family zinc finger protein 1(Gli-1),and hedgehog interacting protein 1(Hhip-1)mRNA in the cells in various groups;Western blotting method was used to detect the expression levels of Nell-1,Runx2,and Ihh proteins in the cells in various groups.The ATDC5 cells were divided into control group,cyclopamine group,tensile stress group,and cyclopamine + tensile stress group.RT-qPCR method was used to detect the expression levels of Nell-1,Ihh,Ptch-1,Gli-1,and Hhip-1 mRNA in the cells in various groups;Western blotting method was used to detect the expression levels of Nell-1 and Ihh proteins in the cells in various groups.Results:Compared with control group,the expression levels of Col-Ⅱ,Col-Ⅹ,Aggrecan,SOX9,VEGF,and PCNA mRNA in the cells in 2 000 μstrain/2 h group were significantly increased(P<0.01);after treated with 2 000 μstrain tensile stress for different duration time(1,2,and 4 h)or different tensile stresses(1 000,2 000,and 3 000 μstrain)for 2 h,compared with control group,the expression levels of Runx2 mRNA in the cells in other groups were increased with the prolongation of time or the increasing of tensile stress(P<0.01),and the expression levels of Nell-1,Ihh,Ptch-1,Gli-1,and Hhip-1 mRNA were gradually increased(P<0.01),the expression levels reached the peaking at 2 000 μstrain/2 h,and then decreased but remained significantly higher than that in control group(P<0.01).The Western blotting results showed that the expression levels of Nell-1,Runx2,and Ihh proteins in the cells were consistent with the change trend of mRNA expression levels.After pre-treated with cyclopamine,compared with control group,the expression levels of Ihh,Ptch-1,Gli-1,and Hhip-1 mRNA in the cells in cyclopamine group were significantly decreased(P<0.01),and the expression levels of Ihh,Ptch-1,Gli-1,and Hhip-1 mRNA in the cells in tensile stress and cyclopamine+tensile stress groups were significantly increased(P<0.01);compared with cyclopamine group,the expression levels of Nell-1,Ihh,Ptch-1,Gli-1,and Hhip-1 mRNA in the cells in cyclopamine+tensile stress group were significantly increased(P<0.01);compared with tensile stress group,the expression levels of Ihh,Ptch-1,Gli-1,and Hhip-1 mRNA in the cells in cyclopamine + tensile stress group were significantly decreased(P<0.01).Compared with control group,the expression level of Ihh protein in the cells in cyclopamine group was significantly decreased(P<0.01),but there was no significant difference in expression level of Nell-1 protein in the cells between control group and cyclopamine group(P>0.05),while the expression levels of Nell-1 and Ihh proteins in the cells in tensile stress group and cyclopamine + tensile stress group were significantly increased(P<0.01);compared with cyclopamine group,the expression levels of Nell-1 and Ihh proteins in the cells in tensile stress group and cyclopamine + tensile stress group were significantly increased(P<0.01);compared with tensile stress group,in the expression levels of Nell-1 and Ihh proteins in the cells in cyclopamine + tensile stress group had no significant differences(P>0.05).Conclusion:After stimulated with physiological tensile stress,Nell-1 can activate the Ihh signaling pathway upstream,and regulate the differentiation of the ATDC5 chondrocytes.

7.
Artigo em Chinês | WPRIM | ID: wpr-1017783

RESUMO

Objective To investigate the predictive value of the expression levels of YY1 transcription fac-tor(YY1)and microRNA(miR)-181a-5p in peripheral blood mononuclear cell for adverse pregnancy out-comes in gestational diabetes mellitus(GDM).Methods A total of 200 patients with GDM were enrolled as the GDM group.100 healthy pregnant women who underwent prenatal examinations during the same period were selected as the control group.The expressions levels of YY1 and miR-181a-5p in peripheral blood mono-nuclear cell were detected by fluorescent quantitative PCR.Receiver operating characteristic(ROC)curve was drawn to analyze the predictive value of YY1 and miR-181a-5p for adverse pregnancy outcomes in GDM pa-tients.Results Compared with the control group,the expression levels of YY1 and miR-181a-5p in peripheral blood mononuclear cell of GDM group were obviously decreased(P<0.05),and the incidence rates of post-partum hemorrhage,macrosomia and neonatal hypoglycemia in GDM group were obviously higher(P<0.05).Multivariate Logistic regression analysis showed that age and poor blood glucose control were inde-pendent risk factors for adverse pregnancy outcomes in GDM patients(P<0.05),and the expression levels of peripheral blood mononuclear cell YY1 and miR-181a-5p were independent protective factors for adverse preg-nancy outcomes in GDM patients(P<0.05).ROC curve results showed that the area under the curve(AUC)of the expression levels of YY1 and miR-181a-5p in peripheral blood alone and in combination in predicting ad-verse pregnancy outcomes in GDM patients was 0.717,0.751 and 0.832,respectively,and the AUC of their combination was obviously higher than that of the two alone(P<0.05).Conclusion The decreased expres-sion levels of YY1 and miR-181a-5p in peripheral blood mononuclear cell of GDM patients could increase the risk of adverse pregnancy outcomes,YY1 and miR-181a-5p are closely related to adverse pregnancy outcomes in GDM patients,and both could be used as predictors of adverse pregnancy outcomes in GDM patients.

8.
Artigo em Chinês | WPRIM | ID: wpr-1017797

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Objective To investigate the impact of ampelopsin(AMP)on oxygen glucose deprivation/reperfusion(OGD/R)induced neuronal damage and its mechanism,and to lay a foundation for the study of neonatal hypoxic-ischemic brain damage.Methods Neurons of newborn SD rats were isolated and cultured in vitro,and they were divided into 5 groups:control group(AMP 0 μmol/L),OGD/R group,low dose AMP group(OGD/R+AMP 20 μmol/L),high dose AMP group(OGD/R+AMP 30 μmol/L)and JAK2/STAT3 activator group(OGD/R+AMP 30 μmol/L+Coumermycin A1 10 μmol/L).CCK-8 method was used to de-tect the cell viability of different treatment groups,the lactate dehydrogenase(LDH)kit was used to detect the cell activity of LDH in the medium,flow cytometry was used to detect the apoptosis rate,enzyme-linked immunosorbent assay was used to detect the levels of interleukin-6(IL-6),interleukin-10(IL-10)and tumor necrosis factor α(TNF-α),the kit was used to detect the levels of reactive oxygen species(ROS),malondial-dehyde(MDA)and superoxide dismutase(SOD),and Western blotting was used to detect the expression of apoptosis related proteins B-cell lymphoma-2(Bcl-2),Bcl-2 associated X protein(Bax),enzymatic cleavage of cysteine containing aspartate protein hydrolase-3(C-caspase-3),tyrosine kinase 2(J AK2),phosphorylated JAK2(p-JAK2),signal transduction and transcription activating factor 3(STAT3)and phosphorylated STAT3(p-STAT3).Results Compared with the concentration of AMP of 0 μmol/L,the cell viability in con-centration of AMP of 5-30 μmol/L was not obvious different(P>0.05),when the concentration of AMP was 40 μmol/L,the cell viability decreased obviously(P<0.05).Compared with the control group,the cell viability,the levels of SOD fluorescence intensity,IL-10 and Bcl-2 in OGD/R group decreased obviously,the LDH activity,cell apoptosis rate,the levels of ROS,MDA,IL-6,TNF-α,Bax,C-caspase-3,p-JAK2/JAK2,and p-STAT3/STAT3 increased obviously(P<0.05).Compared with OGD/R group,the cell viability,the levels of SOD fluorescence intensity,IL-10 and Bcl-2 in low and high dose AMP groups increased,the LDH activity,cell apoptosis rate,the levels of ROS,MDA,IL-6,TNF-α,Bax,C-caspase-3,p-JAK2/JAK2,and p-STAT3/STAT3 decreased(P<0.05),and JAK2/STAT3 activator was able to reverse the protective effect of AMP on OGD/R induced neuronal.Conclusion AMP attenuates OGD/R induced neuronal by reducing oxidative stress and inflammatory response,and its mechanism may be related to inhibition of JAK2/STAT3 signal pathway phosphorylation.

9.
Artigo em Chinês | WPRIM | ID: wpr-1017841

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Objective To establish a rapid detection method for zika virus based on direct amplification re-al-time fluorescent quantitative reverse transcription polymerase chain reaction(RT-PCR)technique.Methods A direct amplification RT-PCR technique for the rapid detection of zika virus in 5 samples(whole blood,serum,saliva,throat swab and urine)was established by using a special function DNA polymerase and a preferred PCR enhancer.Results The detection limits of the 5 samples were 103 PFU/mL in serum,102 PFU/mL in urine,throat swab,and saliva,and 104 PFU/mL in whole blood.The coefficient of goodness-fit of stand-ard curves was above 0.98,and the amplification efficiency was 90%-110%.Zika virus nucleic acid was suc-cessfully amplified,but non-zika virus nucleic acid was not amplified.Based on the repeatable detection of sam-ples from urine,whole blood,and saliva,the variation coefficient of 6 repeated Ct values at 106 PFU/mL and 102 PFU/mL concentrations were all<5%.The zika virus detection method established by the direct amplifi-cation RT-PCR technique was consistent with the detection results of conventional RT-PCR technique.Only two serum samples were detected in eight zika virus samples,and the remaining 62 non-zika virus samples and 12 negative samples were not amplified.Conclusion A rapid detection method for zika virus based on direct ampli-fication RT-PCR technique is successfully established.The method is simple,rapid,sensitive and specific.

10.
Artigo em Chinês | WPRIM | ID: wpr-1017858

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Objective To investigate the relationship between the expression levels of thyroid transcription factor-1(TTF-1)and Galectin-3 in differentiated thyroid carcinoma(DTC)tissues and clinical manifestations and prognosis of patients.Methods A total of 76 DTC patients admitted to the hospital from January 1,2017 to May 30,2020 were selected as the study objects.Cancer tissue specimens obtained during surgery were in-cluded in the DTC group(n=76),and corresponding paracancer tissue specimens were included in the para-cancer group(n=76).The expressions of TTF-1 and Galectin-3 in DTC group and paracancer group were de-tected by immunohistochemistry,and the relationship between the expression levels of TTF-1 and Galectin-3 and the clinicopathological characteristics of DTC patients was analyzed.Multivariate Cox regression analysis was used to investigate the prognostic factors of DTC patients.Results The positive expression rates of TTF-1 and Galectin-3 in DTC group were higher than those in paracancer group,and the difference was statistically significant(P<0.05).The TTF-1 positive expression rate and Galectin-3 positive expression rate in DTC pa-tients with TNM stage Ⅲ to Ⅳ,low differentiation,tissue type of papillary thyroid carcinoma and lymph node metastasis were higher than those in DTC patients with TNM stage Ⅰ to Ⅱ,medium/high differentiation,tis-sue type of thyroid follicular carcinoma and no lymph node metastasis.The difference was statistically signifi-cant(P<0.05).The 3-year overall survival rate of TTF-1 negative and Galectin-3 negative DTC patients was higher than that of TTF-1 positive and Galectin-3 positive DTC patients,and the difference was statistically significant(P<0.05).Multivariate Cox regression analysis showed that lymph node metastasis,positive TTF-1 and positive Galectin-3 were prognostic factors in DTC patients(P<0.05).Conclusion TTF-1 and Galectin-3 are related to TNM stage,differentiation degree,tissue type,lymph node metastasis and 3-year sur-vival rate of DTC patients,and have important reference value for the diagnosis and prognosis evaluation of DTC patients.

11.
Artigo em Chinês | WPRIM | ID: wpr-1018367

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Objective To investigate the ameliorative effect of sulforaphane on inflammatory response and airway remodeling in rats with chronic obstructive pulmonary disease(COPD).Methods Seventy-five SD rats were randomly divided into the normal group,the model group,and the low-,medium-,and high-dose groups of sulforaphane,with 15 rats in each group.Except for the normal group,the COPD model was prepared in the remaining group using aroma smoke inhalation combined with intratracheal droplet lipopolysaccharide(LPS)method.After the successful modelling,the rats were administered the drug by gavage for 28 days.At the end of the administration,the general conditions of the rats in each group were observed,and the lung function[forced vital capacity(FVC),peak expiratory flow-rate(PEF),forceful expiratory volume in 1 second(FEV1)]was examined,and the pathological changes of the lung tissues were observed by hematoxylin-eosin(HE)staining method,and the indexes of airway remodeling(thickness of the bronchial wall,thickness of the smooth muscle)were measured;the enzyme-linked immunosorbent assay(ELISA)was used to examine the lung function of the rats.The levels of inflammatory factors[tumor necrosis factor α(TNF-α),interleukin 1β(IL-1β)]were detected in lung tissue by enzyme-linked immunosorbent assay(ELISA),and changes in the protein expressions of Toll-like receptor 4(TLR4),myeloid differentiation factor 88(MyD88),and nuclear transcription factor κB(NF-κB)were detected in lung tissue by Western Blot.Results(1)The rats in the model group had dry and lack of glossy fur,obvious coughing and nose scratching,shortness of breath,slow movement,and preferred to arch their backs and lie curled up;the rats in the low-,medium-and high-dose groups of sulforaphane showed significant improvement in shortness of breath,coughing,and other abnormal manifestations.(2)HE staining showed that the airway wall and smooth muscle of rats in the model group were thickened,the airway epithelium was damaged,and alveolar destruction,fusion,and massive infiltration of inflammatory cells were seen;the histopathological changes in the lungs of rats in the low-,medium-and high-dose groups of sulforaphane improved to varying degrees,with the airway wall becoming thinner,the degree of alveolar destruction being reduced,and the infiltration of inflammatory cells being reduced.(3)Compared with the normal group,FVC,PEF and FEV1 were significantly reduced in the model group(P<0.05),and the levels of TNF-α and IL-1β,bronchial wall thickness,smooth muscle thickness,and the expression levels of TLR4,MyD88 and NF-κB were significantly increased in the model group(P<0.05);and in comparison with the model group,the levels of FVC,PEF,and FEV1 were significantly increased in the rats in the sulforaphane low-,medium-,and high-dose groups(P<0.05),and the levels of TNF-α,IL-1β,bronchial wall thickness,smooth muscle thickness,and the expression levels of TLR4,MyD88,and NF-κB were significantly decreased(P<0.05)compared with the model group.Conclusion Sulforaphane helps to inhibit the inflammatory response,attenuate airway remodeling,and improve the pathological injury and lung function of lung tissue in rats with COPD,and its mechanism may be related to the inhibition of TLR4,MyD88,and NF-κB protein expressions.

12.
Artigo em Chinês | WPRIM | ID: wpr-1018369

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Objective To investigate the repair mechanism of baicalin on gastric mucosa of chronic atrophic gastritis mice based on the network pharmacology and animal experiments.Methods(1)Applied network pharmacology to predict and analyze the potential key targets of baicalin in the treatment of chronic atrophic gastritis.(2)Animal experiment:40 C57BL/6N mice were randomly divided into normal group,model group,Vitacoenzyme group and baicalin group,10 mice in each group.Except for the normal group,the other three groups of mice were treated with N-methyl-N'-nitro-N-nitrosoguanidine(MNNG)by gavage combined with hunger and satiety disorder method to construct a chronic atrophic gastritis model.At the end of drug administration,the histopathological changes of gastric mucosa were observed by hematoxylin-eosin(HE)staining,the changes of gastrin(GAS)and prostaglandin E2(PGE2)levels in serum were detected by enzyme-linked immunosorbent assay(ELISA),and the mRNA and protein expression levels of Janus tyrosine kinase 1(JAK1),signal transducer and activator of transcription 3(STAT3)in the gastric mucosa were detected by real-time fluorescence quantitative polymerase chain reaction(qRT-PCR)and protein immunoblotting(Western Blot)methods,respectively.Results The results of network pharmacology showed that baicalin could spontaneously bind to the core targets JAK1 and STAT3.The results of animal experiments showed that compared with the normal group,the gastric mucosa of mice in the model group suffered from atrophy,disordered gland arrangement,the presence of a large number of lymphocytes,a significant increase in apoptotic index of the gastric mucosa(P<0.05),a significant decrease in the levels of GAS and PGE2 in serum(P<0.05),and a significant increase in the levels of mRNA and protein expressions of JAK1 and STAT3 in the gastric mucosa(P<0.05);compared with the model group,the pathological changes of gastric mucosa in the Vitacoenzyme group and baicalin group were alleviated,the glands were arranged relatively neatly,the structure was more intact,the apoptosis index of gastric mucosal cells was significantly decreased(P<0.05),the levels of GAS and PGE2 in serum were significantly increased(P<0.05),and the mRNA and protein expression levels of JAK1 and STAT3 in gastric mucosa were significantly decreased(P<0.05).There was no significant difference in the above-mentioned indexes between the baicalin group and the Vitacoenzyme group(P>0.05).Conclusion Baicalin can effectively repair gastric mucosal lesions in mice with chronic atrophic gastritis,and its mechanism may be related to the down-regulation of mRNA and protein expressions of JAK1 and STAT3.

13.
Artigo em Chinês | WPRIM | ID: wpr-1018409

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Objective To investigate the therapeutic effects and mechanisms of Maxing Shigan Decoction on cough variant asthma(CVA)rats.Methods Sixty rats were randomly divided into normal group,model group,low and high dose groups of Maxing Shigan Decoction,and high-dose of Maxing Shigan Decoction + signal transducer and activator of transcription 3(STAT3)activator Colivelin(Col)group,12 rats in each group.Except for the normal group,the CVA model was constructed by intraperitoneal injection of ovalbumin combined with moxa fumigation in all other groups of rats.After the corresponding treatment,the rats were observed for signs and cough counts,airway resistance(RE)was detected by pulmonary function meter,eosinophils(EOS)were counted by Diff-Quik staining,histopathological features of the lungs and bronchial tubes were observed by hematoxylin-eosin(HE)staining method,and the lung tissues were detected by enzyme-linked immunosorbent assay(ELISA)for monocyte chemotactic protein 1(MCP-1),and tumor necrosis factor α(TNF-α),and the protein expression levels of interleukin 6(IL-6),STAT3,and transient receptor potential vanilloid-1 channel(TRPV1)were detected by Western Blot.Results Compared with the normal group,rats in the model group showed obvious asthma symptoms,severe inflammatory cell infiltration was seen in the lung tissue,bronchial epithelial cell necrosis,ciliated adhesion,mucus,and RE,EOS number,MCP-1 and TNF-α contents,and protein expression levels of IL-6,STAT3,TRPV1 were elevated(P<0.05);compared with the model group,rats in the low-and high-dose groups of Maxing Shigan Decoction showed significant improvement in asthma symptoms,reduction in lung and bronchial injury,and dose-dependent reduction in RE,EOS number,MCP-1 and TNF-α contents,and protein expression levels of IL-6,STAT3,and TRPV1(P<0.05);compared with the high-dose group of Maxing Shigan Decoction,the rats in the high-dose Maxing Shigan Decoction+Col group showed increased asthma,increased lung and bronchial injury,and increased RE,EOS number,MCP-1 and TNF-α contents,and protein expression levels of IL-6,STAT3,and TRPV1(P<0.05).Conclusion Maxing Shigan Decoction can effectively improve cough variant asthma in rats,and its mechanism is related to the inhibition of IL-6/STAT3 signaling pathway and the high expression of TRPV1.

14.
Artigo em Chinês | WPRIM | ID: wpr-1018410

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Objective To observe the regulatory mechanism of drug-containing serum of Jinghou Zengzhi Prescription based on qi and blood replenishing method on the expression of growth and differentiation factor 9(GDF9)and apoptosis of ovarian granulosa cells in rats with controlled ovarian hyperstimulation(COH).Methods Serum of COH rats(blank serum)and serum of COH rats gavaged by the Jinghou Zengzhi Prescription were prepared.A COH rat model was established and ovarian granulosa cells were collected.The experiment was divided into 5 groups:blank serum group,drug-containing serum group,drug-containing serum+SB203580[p38 mitogen-activated protein kinase(p38MAPK)inhibitor]group,drug-containing serum + PDTC[nuclear transcription factor κB(NF-κB)inhibitor]group,drug-containing serum + SB203580 + PDTC group.The mRNA expression levels of p38MAPK,casein kinase 2(CK2),nuclear transcription factor κB inhibitor α(IκBα),NF-κB and GDF9 were detected by real-time quantitative polymerase chain reaction(qRT-PCR),and GDF9 protein expression level was detected by Western Blot,and ovarian granulosa cell apoptosis was detected by terminal-deoxynucleoitidyl transferase mediated nick end labeling(TUNEL).Results The drug-containing serum of Jinghou Zengzhi Prescription decreased the mRNA expressions of p38MAPK and NF-κB,elevated the mRNA expressions of CK2 and IκBα,increased the mRNA and protein expression levels of GDF9,and decreased the apoptosis rate of ovarian granulosa cells in COH rats.The addition of p38MAPK inhibitor SB203580 alone and the addition of NF-κB inhibitor PDTC alone both promoted the mRNA and protein expressions of GDF9 and reduced the apoptosis rate of granulosa cells.Conclusion The drug-containing serum of Jinghou Zengzhi Prescription based on qi and blood replenishing method can promote the expression of GDF9 and inhibit the apoptosis of ovarian granulosa cells in rats with COH,and its mechanism may be related to the regulation of the expression of genes of the dual signaling pathways of p38MAPK and NF-κB.

15.
Basic & Clinical Medicine ; (12): 37-42, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1018569

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Objective To explore the effect of endoplasmic reticulum stress activating transcription factor 6(ATF6)on the expression of reproduction related gene heat shock protein family A member 1 like(HSPA1L)and preliminari-ly clarify its regulatory molecular mechanism.Methods The ATF6 over-expression plasmid was transfected into HEK-293T cells and the over-expression efficiency was verified by RT-qPCR and Western blot.The transcriptome sequen-cing information of testis tissue of male ATF6 knockout mice was used to screen five reproduction related genes down-stream of ATF6.The dual luciferase reporter assay selected the downstream genes with high promoter activity and de-tected the effect of over-expression of ATF6 on the promoter activity of downstream genes.The possible binding sites of ATF6 and downstream gene promoters were predicted by gene-regulation.RT-qPCR and Western blot were used to detect the effect of over-expression of ATF6 on downstream gene expression in HEK-293T cells.Whether ATF6 binds to downstream gene promoters was determined by electrophoretic mobility shift assay(EMSA).Results The expres-sion of ATF6 mRNA(P<0.001)and protein(P<0.001 and P<0.05)in HEK-293T cells was significantly increased after transfection.HSPA1L(P<0.001 and P<0.05),a reproductive related gene downstream of ATF6 was screened by transcriptome sequencing and dual luciferase reporter assay.ATF6 promoted the truncated promoter activity of HSPA1L(P<0.001).After over-expression of ATF6,the expression of HSPA1L was significantly increased(P<0.001).The differences were statistically significant.ATF6 protein could bind to the aagtcgtcac DNA sequence of HSPA1L promoter.Conclusions ATF6,a key molecule of endoplasmic reticulum stress,regulates the expression of reproduction related gene HSPA1L by binding to the promoter of HSPA1L.This result will lay a foundation for further research on the prevention or treatment of endoplasmic reticulum stress(ERS)related male infertility.

16.
Basic & Clinical Medicine ; (12): 352-360, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1018620

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Objective To investigate the effect of cisplatin treatment on the transcriptional level of human liver cancer cells by conducting transcriptome sequencing analysis after treating human liver cancer cell lines with differ-ent concentrations of cisplatin(CDDP).Methods Liver cancer cell lines HepG2 and Huh7 were incubated with cisplatin at different final concentrations of 0,20,50,100 and 200 μmol/L.After 12 hours,cell viability,immuno-fluorescence and RNA-sequencing(RNA-seq)were performed.Differential gene expression analysis(DEG),KEGG pathway analysis,and protein-protein interaction network analysis were conducted.Results Cisplatin de-creased cell viability and increased DNA damage in HepG2,Huh7 cells.Among the genes regulated after cisplatin treatment at different concentrations,59 genes were commonly up-regulated in both HepG2 and Huh7 cells,while 81 genes were commonly down-regulated.The commonly upregulated genes were mainly enriched in cancer initiation and progression pathways.The 81 commonly down-regulated genes were mainly enriched in Rap1 signaling pathway,Ras signaling pathway,signaling pathways regulating pluripotency of stem cells,axon guidance,and cell adhesion-related pathways.Survival analysis of key nodes in the protein-protein interaction network of commonly up-regulated and downregulated genes revealed a significant correlation between high expression of Jun proto-oncogene,AP-1 transcription factor subunit(JUN)and prolonged patient survival and a significant correlation between low ex-pression of growth arrest and DNA damage inducible alpha(GADD45A)and prolonged patient survival.Conclu-sions The study revealed common transcriptional changes in liver cancer cells under cisplatin treatment.Differential expression of JUN and GADD45A is a potential core mechanism to explain drug resistance.This conclusion provides some important prognostic indicators for clinical treatment.

17.
Acta Anatomica Sinica ; (6): 181-187, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1018766

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Objective To investigate the association of 13 single nucleotide polymorphism(SNP)sites in 6 phalange-bone development related genes[fibroblast growth factor receptor 2(FGFR2),indian hedgehog signaling molecule(IHH),Msh homeobox 1(MSX1),Runx family transcription factor 2(RUNX2),SRY-box transcription factor 9(SOX9),Wnt family member 5A(WNT5A)]with human index-ring finger length ratio(2D∶4D).Methods Digital cameras were used to take frontal photographs of the hands of 731 college students(358 males and 373 females)in Ningxia,and image analysis software was used to mark anatomical points and measure finger lengths of index(2th)and ring(4th);genotyping of 13 SNP sites(rs1047057,rs755793,rs41258305,rs3731881,rs3100776,rs12532,rs3821949,rs45585135,rs3749863,rs1042667,rs12601701,rs1829556,rs3732750)for 6 genes by multiplex PCR;One-Way ANOVA or independent sample t-test indirectly assessed the association between 2D∶4D and 13 SNP sites.Results Both left and right hand 2D∶4D were significantly higher in females than males in Ningxia college students(all P<0.01);no statistically significant differences in genotype and allele frequencies of the 13 SNP sites among different sexes(all P>0.05);among different sexes,male left hand 2D∶4D was significantly associated with the genotype of SOX9 gene rs12601701 site(P<0.05)and right hand 2D∶4D was significantly associated with the genotype of WNT5A gene rs1829556 site(P<0.05);the female right hand 2D∶4D was significantly associated with the MSX1 gene rs12532(P<0.01)and rs3821949(P<0.05)sites genotypes.Conclusion SOX9(rs12601701),WNT5A(rs1829556)and MSX1(rs12532 and rs3821949)gene polymorphisms may be associated with the formation of 2D∶4D in Ningxia population.

18.
Artigo em Chinês | WPRIM | ID: wpr-1019183

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Objective To observe the effect of Shenfu injection on lung injury caused by hemor-rhagic shock(HS)in rats and explore the related potential mechanism.Methods Thirty-six SPF healthy male SD rats,aged 16-17 weeks,weighing 400-600 g,were randomly divided into three groups:sham op-eration group(group SH),HS group(group HS),and Shenfu injection group(group SF),12 rats in each group.In group SH,only the right femoral vein and femoral artery were separated after anesthesia,and ve-nous catheterization was not performed.HS model was established in groups SF and HS.In group HS,liquid resuscitation was performed through an intravenous catheter,and the resuscitation fluid consisted of the auto-blood lost and the compound sodium chloride injection equivalent to 1.5 times the blood loss and 10 ml/kg normal saline.In group SF,the resuscitation fluid consisted of the lost autoblood and the compound sodium chloride injection equivalent to 1.5 times the blood loss and Shenfu injection 10 ml/kg.The whole perfusion time was about 60 minutes.Six rats in the three groups were randomly anesthetized 24 and 48 hours after op-eration.The wet/dry weight ratio(W/D)of lung tissues was detected.The concentrations of interleukin-6(IL-6),IL-17,IL-10,and transforming growth factor-β(TGF-β)were detected by ELISA,the mRNA ex-pression of retinoic acid-related orphan nuclear receptor γt(RORγt),transcription factor forkhead box pro-tein 3(Foxp3),and hypoxia-inducible factor-1α(HIF-1α)in lung tissues were detected by PCR.The pro-tein contents of RORγt,Foxp3,HIF-1α,aquaporin 1(AQP1),and AQP5 in lung tissue were detected by Western blot.Pathological changesunder HE staining light microscope and lung injury scores were observed.Results Compared with 24 hours after operation,W/D,the concentrations of IL-6 and IL-17,mRNA ex-pression and protein content of RORγt and HIF-1α,and lung injury score were significantly decreased(P<0.05),the concentrations of IL-10,and TGF-β,Foxp3 mRNA expression and protein content,and AQP1 protein content were significantly increased in group SF 48 hours after operation(P<0.05).Compared with group SH,W/D,the concentrations of IL-6,IL-17,IL-10,and TGF-β,mRNA expression and protein content of RORγt,Foxp 3,and HIF-1α,and lung injury score were significantly increased(P<0.05),AQP1 and AQP5 protein contents were significantly decreased in groups HS and SF 24 and 48 hours after operation(P<0.05),and alveolar structure was damaged under light microscope and alveolar interstitium was filled with a large amount of edematous fluid,during which a large number of inflammatory cells infiltra-ted.Compared with group HS,W/D,the concentrations of IL-6 and IL-17,mRNA expression and protein content of RORγt and HIF-1α,and lung injury score were significantly decreased(P<0.05),the concen-trations of IL-10 and TGF-β,Foxp3 mRNA expression and protein content,AQP1 and AQP5 protein con-tents were significantly increased in group SF 24 and 48 hours after surgery(P<0.05),and the alveolar structure was improved under light microscope,and edema was reduced,and the number of inflammatory cells was reduced.Conclusion Shenfu injection can regulate the balance between pro-inflammatory factors IL-6 and IL-17,and anti-inflammatory factors IL-10 and TGF-β,increase the protein content of AQP1 and AQP5 in lung tissue,and decrease the W/D and injury score in lung tissue,thus alleviating lung injury in HS rats.The mechanism may be related to the regulation of HIF-1α-RORγt/Foxp3 balance.

19.
Artigo em Chinês | WPRIM | ID: wpr-1019944

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Objective To investigate the expression of activating transcription factor 6(ATF6)and interferon α(IFN-α)and their significance in laryngeal squamous cell carcinoma(LSCC)tissue.Methods A total of 100 LSCC patients admitted to Clinical Medical College of Henan University of Science and Technology/the First Affiliated Hospital of Henan University of Science and Technology from March 2015 to March 2020 were selected,and their clinicopathological features such as tumor location,degree of differentiation,and lymph node metastasis were collected and organized.Immunohistochemical method was applied to detect the expression of ATF6 and IFN-α in tissues.Spearman method was used to analyze the correlation between ATF6 and IFN-α expression in LSCC tissue.Kaplan-Meier method was applied to analyze the relationship between ATF6 and IFN-α expression in LSCC tissue and 3-year survival rate of patients.Cox regression was used to analyze the influencing factors of 3-year mortality in LSCC patients.Results The positive rate of ATF6 in LSCC tissue(76.00%)was higher than that in normal tissues adjacent to cancer(13.00%),the positive rate of IFN-α in LSCC tissue(29.00%)was lower than that in normal tissues adjacent to cancer(74.00%),and the difference was statistically significant(χ2=80.352,40.536,all P<0.05).The proportions of ATF6 positive expression in LSCC patients with TNM stage Ⅲ+Ⅳ,deep infiltration depth,and lymph node metastasis were significantly higher than those in LSCC patients with TNM stage Ⅰ+Ⅱ,shallow infiltration depth,and no lymph node metastasis(χ2=7.310,9.223,5.123,all P<0.05).The proportions of IFN-α negative expression in LSCC patients with TNM stage Ⅲ+Ⅳ,deep infiltration depth,and lymph node metastasis were significantly higher than those in LSCC patients with TNM stage Ⅰ+Ⅱ,shallow infiltration depth,and no lymph node metastasis(χ2=8.564,5.021,5.203,all P<0.05).There was a negative correlation between ATF6 and IFN-α expression in LSCC tissues(r=-0.415,P<0.05).The 3-year survival rate of LSCC patients in the ATF6 positive expression group(50.00%)was significantly lower than that in the ATF6 negative expression group(83.33%),while the 3-year survival rate of LSCC patients in the IFN-α positive expression group(82.76%)was significantly higher than that in the IFN-α negative expression group(47.89%)(Log rank χ2=8.002,10.854,all P<0.05).ATF6(HR=1.735,95%CI:1.159~2.598)and IFN-α(HR=0.624,95%CI:0.439~0.886)were influencing factors for the mortality of LSCC patients.Conclusion The positive expression rate of ATF6 increased and the positive expression rate of IFN-α decreased in LSCC tissues.They were closely related to the clinical pathological characteristics and prognosis of patients.

20.
Artigo em Chinês | WPRIM | ID: wpr-1019945

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Objective To study the expression of thyroid hormone receptor binding protein 4(TRIP4)and DNA damage inducing transcription factor 4(DDIT4)in glioma tissue and their relationship with clinical pathological characteristics and prognosis.Methods 94 glioma patients admitted to the First Hospital of Hebei Medical University from February 2018 to February 2019 were selected as the research subjects.The expression of TRIP4,DDIT4 proteins in tissues were detected by immunohistochemistry.The relationship between the expression of TRIP4,DDIT4 proteins in glioma tissues and clinical pathological characteristics were compared.The differences in survival prognosis of glioma patients with different levels of TRIP4,DDIT4 protein expression were analyzed by Kaplan-Meier survival curve.Univariate and multivariate COX regression analysis was conducted to analyze the factors affecting the survival prognosis of glioma patients.Results The positive rates of TRIP4(68.09%),DDIT4(65.96%)proteins in glioma tissues were higher than those in adjacent tissues(13.83%,10.64%),with statistically significant differences(χ2=57.212,60.866,all P<0.05).There was a significant positive correlation between TRIP4 and DDIT4 protein expression in glioma tissues(r=0.722,P<0.05).The positive rates of TRIP4(83.64%vs 46.15%,80.00%vs 51.28%)and DDIT4(80.00%vs 46.15%,76.36%vs 51.28%)proteins in glioma tissues with tumor diameter≥3cm,WHO grade Ⅲ were significantly higher than those in tissues with tumor diameter<3cm,WHO grade Ⅰ~Ⅱ(χ2=6.393~14.754,P<0.05).The 3-year overall survival rates of the TRIP4 positive and negative expression groups were 37.50%(24/64)and 66.67%(20/30),respectively.The 3-year cumulative survival of the TRIP4 positive expression group was significantly lower than that in the TRIP4 negative expression group(Log-rank χ2=5.949,P=0.015).The 3-year overall survival rate of DDIT4 positive and negative expression group was 37.10%(23/62)and 70.00%(21/30),respectively.The 3-year cumulative survival of the DDIT4 positive expression group was significantly lower than that in the DDIT4 negative expression group(Log-rank χ2=7.642,P=0.006).Tumor diameter≥3cm(HR=1.614,P=0.000),WHO grade Ⅲ(HR=1.790,P=0.000),positive TRIP4(HR=1.665,P=0.000)and positive DDIT4(HR=1.476,P=0.000)were independent risk factors affecting the survival prognosis of glioma patients.Conclusion The expression of TRIP4 and DDIT4 protein in glioma tissue was increased.Both of them were related to tumor diameter and WHO grade,and are potential tumor markers for survival prognosis of glioma.

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