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瑞香素调控DJ-1表达对子宫内膜癌Ishikawa细胞凋亡的影响
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作者 龙生根 章志琴 +2 位作者 朱其舟 肖仲清 舒宽勇 《广东医学》 CAS 2024年第5期529-533,共5页
目的探讨中药活性成分瑞香素调控DJ-1表达对子宫内膜癌Ishikawa细胞凋亡的影响。方法以子宫内膜癌Ishikawa细胞为研究对象,CCK-8法分析瑞香素对Ishikawa细胞增殖的影响,qRT-PCR检测瑞香素对Ishikawa细胞DJ-1 mRNA表达,流式细胞术检测瑞... 目的探讨中药活性成分瑞香素调控DJ-1表达对子宫内膜癌Ishikawa细胞凋亡的影响。方法以子宫内膜癌Ishikawa细胞为研究对象,CCK-8法分析瑞香素对Ishikawa细胞增殖的影响,qRT-PCR检测瑞香素对Ishikawa细胞DJ-1 mRNA表达,流式细胞术检测瑞香素对Ishikawa细胞凋亡的影响。结果不同浓度瑞香素处理Ishikawa细胞后,细胞增殖抑制率较对照组明显增加,且呈现时间-浓度依赖性,瑞香素处理Ishikawa细胞48 h,抑制率IC50值为78μmol/L;与对照组相比,78μmol/L瑞香素处理Ishikawa细胞48 h,其DJ-1mRNA表达量明显降低(P<0.05),同时早期凋亡率(P<0.01)和晚期凋亡率(P<0.05)均明显升高。结论瑞香素可通过降调DJ-1的表达促进子宫内膜癌Ishikawa细胞凋亡,并呈剂量依赖关系。 展开更多
关键词 瑞香素 子宫内膜癌 ISHIKAWA细胞 dj-1 细胞凋亡
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红景天注射液对帕金森病患者治疗效果及血清DJ-1/Nrf2通路相关氧化应激指标的影响
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作者 谷伟 孙梓旭 +2 位作者 贾海莉 杨继雷 孙光宁 《临床和实验医学杂志》 2024年第3期254-258,共5页
目的 探究红景天注射液对帕金森病患者治疗效果及血清DJ-1/核因子相关因子2(Nrf2)通路相关氧化应激指标的影响。方法 前瞻性选取2021年6月至2022年6月来河北北方学院附属第一医院治疗的120例帕金森病患者作为研究对象,按照随机数字表法... 目的 探究红景天注射液对帕金森病患者治疗效果及血清DJ-1/核因子相关因子2(Nrf2)通路相关氧化应激指标的影响。方法 前瞻性选取2021年6月至2022年6月来河北北方学院附属第一医院治疗的120例帕金森病患者作为研究对象,按照随机数字表法将患者分为研究组与对照组,每组各60例。对照组患者接受常规抗帕金森病治疗,研究组患者在此基础上联用红景天注射液治疗,连续治疗4周。比较两组患者的临床疗效,治疗前、治疗后4周的氧化应激指标[超氧化物歧化酶(SOD)、丙二醛、谷胱苷肽过氧化物酶(GSH-Px)、DJ-1蛋白、Nrf2],治疗前、治疗后4个月的帕金森病综合症状、生活质量情况,并观察两组患者不良反应发生情况。结果 治疗后,观察组患者的治疗有效率为96.61%,明显高于对照组(83.05%),差异有统计学意义(P<0.05)。治疗后4周,观察组患者血清SOD、GSH-Px、Nrf2水平分别为(44.27±2.19) U/mL、(44.12±6.72) U/L、(669.68±87.23) U/L,均明显高于对照组[(31.29±2.97) U/mL、(40.82±4.12) U/L、(602.09±52.31) U/L],而血清丙二醛、DJ-1蛋白水平分别为(2.27±0.86) nmol/mL、(7.08±2.19)μg/L,均明显低于对照组(3.69±1.15) nmol/mL、(10.92±1.29)μg/L,差异均有统计学意义(P<0.05)。治疗后4个月,观察组患者的UPDRS评分为(46.23±2.34)分,明显低于对照组[(63.28±1.93)分],差异有统计学意义(P<0.05)。治疗后4个月,观察组患者的生理功能、躯体功能、社会功能、心理状态、情感功能5个方面的评分分别为(73.12±5.22)、(78.23±2.34)、(81.23±2.13)、(88.29±3.91)、(86.39±3.23)分,均明显高于对照组[(53.13±6.48)、(59.28±4.92)、(69.24±5.91)、(71.23±2.03)、(71.13±3.25)分],差异均有统计学意义(P<0.05)。治疗后,观察组患者不良反应发生率为8.47%,明显低于对照组(23.73%),差异有统计学意义(P<0.05)。结论 在常规抗帕金森病治疗基础上,采用红景天注射液治疗帕金森病可明显提高患者的临床疗效,抑制DJ-1/Nrf2通路相关氧化应激反应,改善帕金森病症状,提高患者生活质量,降低不良反应发生率。 展开更多
关键词 红景天注射液 帕金森病 dj-1/Nrf2通路 氧化应激指标 生活质量
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牦牛DJ-1基因克隆、生物信息学及组织表达分析
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作者 申金伟 路建卫 +3 位作者 赵雪 扎老 成述儒 梁春年 《华北农学报》 CSCD 北大核心 2024年第2期192-199,共8页
为了研究牦牛DJ-1基因的结构及功能,为后续深入研究牦牛DJ-1基因的生物学功能提供了重要的理论依据。以美仁牦牛脂肪组织cDNA为模板,利用RT-PCR克隆牦牛DJ-1基因的编码区序列(CDS),并且利用基因序列进行生物信息学分析,预测结构域及蛋... 为了研究牦牛DJ-1基因的结构及功能,为后续深入研究牦牛DJ-1基因的生物学功能提供了重要的理论依据。以美仁牦牛脂肪组织cDNA为模板,利用RT-PCR克隆牦牛DJ-1基因的编码区序列(CDS),并且利用基因序列进行生物信息学分析,预测结构域及蛋白质理化性质等,再利用RT-qPCR技术进行组织表达分析。结果表明,美仁牦牛DJ-1基因的CDS区全长570 bp,共编码189个氨基酸;牦牛DJ-1结构域预测显示,在DJ-1氨基酸序列的29—168位中有1个含有Pfam的PfpI结构域;通过对DJ-1蛋白结构和功能进行预测,结果显示,无跨膜结构且无信号肽区域,分子质量20.03531 ku,原子总数2870,理论等电点6.84,不稳定系数28.37,表示为稳定的蛋白质;脂肪系数101.11,总平均亲水系数-0.004,为亲水蛋白,共有11个磷酸化位点;同时,亚细胞定位预测结果表明,美仁牦牛DJ-1蛋白主要分布于细胞质和线粒体中,系统进化树表明,美仁牦牛与野牦牛和欧洲牛亲缘关系最近,与北极狐和宽吻海牛亲缘关系最远;RT-qPCR结果表明,在成年美仁牦牛的心脏、肝脏、脾脏、肺脏、肌肉、脂肪和睾丸组织中均有所表达,在心脏组织和肌肉组织中表达水平最高,在肝脏和睾丸组织中表达水平最低。 展开更多
关键词 美仁牦牛 dj-1基因 生物信息学分析 系统进化
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DJ-1/Nrf2在精索静脉曲张相关性弱精症生精细胞氧化应激中的表达及意义
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作者 吴元才 蔡佳豆 +2 位作者 唐永泽 罗顺文 李晓伟 《中国计划生育学杂志》 2024年第8期1781-1786,共6页
目的:考察蛋白DJ-1(DJ-1)/稳定核转录因子红系2相关因子2(Nrf2)在精索静脉曲张相关性弱精症患者生精细胞氧化应激中的表达及意义。方法:收集本院2021年12月-2023年12月收治的120例确诊为精索静脉曲张相关性弱精症的男性患者临床资料,60... 目的:考察蛋白DJ-1(DJ-1)/稳定核转录因子红系2相关因子2(Nrf2)在精索静脉曲张相关性弱精症患者生精细胞氧化应激中的表达及意义。方法:收集本院2021年12月-2023年12月收治的120例确诊为精索静脉曲张相关性弱精症的男性患者临床资料,60例为新诊断患者纳入新诊断病例组,60例为接受维生素C联合维生素E治疗3个月的患者纳入病例治疗组;同期婚前健康检查健康男性40例为对照组。检测3组精液生精细胞形态、精液生精细胞的DJ-1、Nrf2蛋白及mRNA,外周血氧化应激[超氧化物歧化酶(SOD)、丙二醛(MDA)、谷胱苷肽过氧化物酶(GSH-Px)]、DJ-1、Nrf2。结果:3组年龄、体质指数、精液体积及精子尾部畸形率均无差异(P>0.05);对照组、病例治疗组、新诊断病例组精子正常形态依次降低,精子头畸形率、体畸形率、头体环合畸形率依次增高,生精细胞DJ-1(0.35±0.11、0.71±0.16、0.89±0.12)、Nrf2蛋白(0.31±0.09、0.62±0.14、0.78±0.13)及mRNA均依次增高,血清MDA、DJ-1、Nrf2依次增高,SOD、GSH-Px依次降低(均P<0.05)。结论:激活DJ-1/Nrf2通路有助于增强精索静脉曲张相关性弱精症生精细胞的抗氧化能力,保护细胞免受由氧化应激引起的损伤,DJ-1/Nrf2通路或是精索静脉曲张相关性弱精症的治疗的潜在分子靶点。 展开更多
关键词 弱精症 精索静脉曲张 生精细胞 蛋白dj-1 稳定核转录因子红系2相关因子2 氧化应激
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南蛇藤提取物通过DJ-1/PTEN/FAK轴抑制非小细胞肺癌侵袭转移
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作者 倪晓晨 姜晓敏 +5 位作者 于世龙 周俊 冒德芳 吴峰 刘延庆 金凤 《中华中医药学刊》 CAS 北大核心 2024年第2期126-130,I0021,共6页
目的研究南蛇藤提取物(Celastrus orbiculatus Thunb.Extract,COE)抑制非小细胞肺癌侵袭转移的具体机制。方法通过CCK-8法测定COE抑制H1299细胞的生物活性,并依此选取低毒浓度进行细胞侵袭转移的功能研究。使用伤口愈合实验和高内涵成... 目的研究南蛇藤提取物(Celastrus orbiculatus Thunb.Extract,COE)抑制非小细胞肺癌侵袭转移的具体机制。方法通过CCK-8法测定COE抑制H1299细胞的生物活性,并依此选取低毒浓度进行细胞侵袭转移的功能研究。使用伤口愈合实验和高内涵成像追踪细胞轨迹对细胞运动功能进行测定。通过Western bolt实验进行分子层面的研究,探究COE抑制肺癌侵袭转移的具体分子机制。实验的分组采用剂量梯度进行设置,分别为Control组(0.05%DMSO),COE组:20,40,80μg/mL。结果COE以剂量依赖的形式明显抑制了H1299的细胞活性。伤口愈合实验结果显示,COE显著抑制了H1299细胞的迁徙能力,统计分析显示差异有显著统计学意义。高内涵成像实时动态追踪细胞轨迹显示,80μg/mL浓度的COE显著抑制了H1299细胞的迁徙能力,表现在运动速度的降低和均方位移量的下降。Western bolt实验结果表明,COE通过DJ-1/PTEN/FAK轴抑制非小细胞侵袭转移。蛋白质印迹的归一化分析均具有统计学意义。结论南蛇藤提取物能在低细胞毒浓度下通过DJ-1/PTEN/FAK轴抑制非小细胞侵袭转移。 展开更多
关键词 南蛇藤提取物 非小细胞肺癌 肿瘤转移 dj-1 PTEN FAK
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Barley Protein LFBEP-C1 from Lactiplantibacillus plantarum dy-1 Fermented Barley Extracts by Inhibiting Lipid Accumulation in a Caenorhabditis elegans Model
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作者 ZHANG Jia Yan LIU Meng Ting +4 位作者 LIU Yu Hao DENG Huan BAI Juan XIE Jian Hua XIAO Xiang 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第4期377-386,共10页
Objective This study aimed to investigate the lipid-lowering activity of LFBEP-C1 in high glucose-fed Caenorhabditis elegans(C.elegans).Methods In this study,the fermented barley protein LFBEP-C1 was prepared and test... Objective This study aimed to investigate the lipid-lowering activity of LFBEP-C1 in high glucose-fed Caenorhabditis elegans(C.elegans).Methods In this study,the fermented barley protein LFBEP-C1 was prepared and tested for its potential anti-obesity effects on C.elegans.The worms were fed Escherichia coli OP50(E.coli OP50),glucose,and different concentrations of LFBEP-C1.Body size,lifespan,movement,triglyceride content,and gene expression were analyzed.The results were analyzed using ANOVA and Tukey's multiple comparison test.Results Compared with the model group,the head-swing frequency of C.elegans in the group of LFBEP-C1 at 20μg/mL increased by 33.88%,and the body-bending frequency increased by 27.09%.This indicated that LFBEP-C1 improved the locomotive ability of C.elegans.The average lifespan of C.elegans reached 13.55 days,and the body length and width of the C.elegans decreased after LFBEP-C1 intake.Additionally,LFBEP-C1 reduced the content of lipid accumulation and triglyceride levels.The expression levels of sbp-1,daf-2,and mdt-15 significantly decreased,while those of daf-16,tph-1,mod-1,and ser-4 significantly increased after LFBEP-C1 intake.Changes in these genes explain the signaling pathways that regulate lipid metabolism.Conclusion LFBEP-C1 significantly reduced lipid deposition in C.elegans fed a high-glucose diet and alleviated the adverse effects of a high-glucose diet on the development,lifespan,and exercise behavior of C.elegans.In addition,LFBEP-C1 regulated lipid metabolism mainly by mediating the expression of genes in the sterol regulatory element-binding protein,insulin,and 5-hydroxytryptamine signaling pathways. 展开更多
关键词 LFBEP-C1 Fermentation protein Caenorhabditis elegans Lipid accumulation Signaling pathway
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二烯丙基二硫增强DJ-1过表达人胃癌SGC7901细胞对5-FU的敏感性
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作者 寻艺 夏红 +3 位作者 李志敏 刘芳 苏琦 苏波 《中国药理学通报》 CAS CSCD 北大核心 2024年第1期99-105,共7页
目的 探讨二烯丙基二硫(diallyl disulfide, DADS)是否增强DJ-1(protein/nucleic acid deglycase,蛋白/核酸去糖化酶)过表达人胃癌SGC7901细胞对5-FU(5-fluorouracil, 5-氟尿嘧啶)的敏感性。方法 实验分为Control组、DADS组、VCR(Vincri... 目的 探讨二烯丙基二硫(diallyl disulfide, DADS)是否增强DJ-1(protein/nucleic acid deglycase,蛋白/核酸去糖化酶)过表达人胃癌SGC7901细胞对5-FU(5-fluorouracil, 5-氟尿嘧啶)的敏感性。方法 实验分为Control组、DADS组、VCR(Vincristine,长春新碱)组、VCR+DADS组、DJ-1组、DJ-1+DADS组;MTT检测DADS对5-FU抑制细胞增殖的影响;流式细胞术检测DADS对细胞凋亡的影响;qRT-PCR、Western blot、免疫荧光检测DADS对耐药相关基因表达的影响。结果 DADS增强5-FU对VCR耐药细胞和DJ-1过表达细胞增殖的抑制作用;DADS诱导VCR耐药细胞凋亡;DADS下调DJ-1表达、诱导DJ-1过表达细胞凋亡;过表达DJ-1上调P-糖蛋白(P-glycoprotein, P-gp)、Bcl-2、XIAP(X连锁凋亡抑制蛋白),下调caspase-3表达;DADS降低DJ-1过表达细胞和VCR耐药细胞P-gp、Bcl-2、XIAP,升高caspase-3表达。结论 DADS能增强DJ-1过表达细胞对5-FU的敏感性,与其拮抗DJ-1介导的P-gp、Bcl-2、XIAP上调、caspase-3下调有关。 展开更多
关键词 二烯丙基二硫 dj-1 P-糖蛋白 胃癌细胞 耐药 5-氟尿嘧啶
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In situ direct reprogramming of astrocytes to neurons via polypyrimidine tract-binding protein 1 knockdown in a mouse model of ischemic stroke
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作者 Meng Yuan Yao Tang +2 位作者 Tianwen Huang Lining Ke En Huang 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第10期2240-2248,共9页
In situ direct reprogramming technology can directly convert endogenous glial cells into functional neurons in vivo for central nervous system repair. Polypyrimidine tract-binding protein 1(PTB) knockdown has been sho... In situ direct reprogramming technology can directly convert endogenous glial cells into functional neurons in vivo for central nervous system repair. Polypyrimidine tract-binding protein 1(PTB) knockdown has been shown to reprogram astrocytes to functional neurons in situ. In this study, we used AAV-PHP.e B-GFAP-sh PTB to knockdown PTB in a mouse model of ischemic stroke induced by endothelin-1, and investigated the effects of GFAP-sh PTB-mediated direct reprogramming to neurons. Our results showed that in the mouse model of ischemic stroke, PTB knockdown effectively reprogrammed GFAP-positive cells to neurons in ischemic foci, restored neural tissue structure, reduced inflammatory response, and improved behavioral function. These findings validate the effectiveness of in situ transdifferentiation of astrocytes, and suggest that the approach may be a promising strategy for stroke treatment. 展开更多
关键词 astrocyte in situ direct reprogramming ischemic stroke miR-30 based shRNA neuron polypyrimidine tract-binding protein 1 TRANSDIFFERENTIATION
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Low Selenium and Low Protein Exacerbate Myocardial Damage in Keshan Disease by Affecting the PINK1/Parkin-mediated Mitochondrial Autophagy Pathway
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作者 Li-wei ZHANG Hong-qi FENG +1 位作者 Song-bo FU Dian-jun SUN 《Current Medical Science》 SCIE CAS 2024年第1期93-101,共9页
Objective Keshan disease(KD)is a myocardial mitochondrial disease closely related to insufficient selenium(Se)and protein intake.PTEN induced putative kinase 1(PINK1)/Parkin mediated mitochondrial autophagy regulates ... Objective Keshan disease(KD)is a myocardial mitochondrial disease closely related to insufficient selenium(Se)and protein intake.PTEN induced putative kinase 1(PINK1)/Parkin mediated mitochondrial autophagy regulates various physiological and pathological processes in the body.This study aimed to elucidate the relationship between PINK1/Parkin-regulated mitochondrial autophagy and KD-related myocardial injury.Methods A low Se and low protein animal model was established.One hundred Wistar rats were randomly divided into 5 groups(control group,low Se group,low protein group,low Se+low protein group,and corn from KD area group).The JC-1 method was used to detect the mitochondrial membrane potential(MMP).ELISA was used to detect serum creatine kinase MB(CK-MB),cardiac troponin I(cTnI),and mitochondrial-glutamicoxalacetic transaminase(M-GOT)levels.RT-PCR and Western blot analysis were used to detect the expression of PINK1,Parkin,sequestome 1(P62),and microtubule-associated proteins1A/1B light chain 3B(MAP1LC3B).Results The MMP was significantly decreased and the activity of CK-MB,cTnI,and M-GOT significantly increased in each experimental group(low Se group,low protein group,low Se+low protein group and corn from KD area group)compared with the control group(P<0.05 for all).The mRNA and protein expression levels of PINK1,Parkin and MAP1LC3B were profoundly increased,and those of P62 markedly decreased in the experimental groups compared with the control group(P<0.05 for all).Conclusion Low Se and low protein levels exacerbate myocardial damage in KD by affecting the PINK1/Parkin-mediated mitochondrial autophagy pathway. 展开更多
关键词 Keshan disease low selenium and low protein myocardial mitochondrial injury PTEN induced putative kinase 1(PINK1)/Parkin mitochondrial autophagy
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Mesenchymal stromal cells modulate unfolded protein response and preserve β-cell mass in type 1 diabetes
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作者 SIYUAN LIU YUAN ZHAO +4 位作者 YU YU DOU YE QIAN WANG ZHAOYAN WANG ZUO LUAN 《BIOCELL》 SCIE 2024年第7期1115-1126,共12页
Introduction:Transplantation of mesenchymal stromal cells(MSCs)is a promising therapy for type 1 diabetes(T1D).However,whether the infused MSCs affect the endoplasmic reticulum stress or subsequent unfolded protein re... Introduction:Transplantation of mesenchymal stromal cells(MSCs)is a promising therapy for type 1 diabetes(T1D).However,whether the infused MSCs affect the endoplasmic reticulum stress or subsequent unfolded protein response inβcells remains unclear.Methods:To investigate this,we induced early-onset T1D in non-obese diabetic mice using streptozotocin.Subsequently,T1D mice were randomly assigned to receive either MSCs or phosphate-buffered saline.We observed the in vivo homing of MSCs and assessed their effectiveness by analyzing blood glucose levels,body weight,histopathology,pancreatic protein expression,and serum levels of cytokines,proinsulin,and C-peptide.Results:Infused MSCs were found in the lungs,liver,spleen,and pancreas of T1D mice.They exhibited various effects,including reducing blood glucose levels,regulating immunity,inhibiting inflammation,increasingβ-cell areas,and reducing the expression of key proteins in the unfolded protein response pathway.Fasting serum proinsulin and C-peptide levels were significantly higher in the MSCs treatment group than in the T1D model group.However,there was no significant difference in the biomarker ofβ-cell endoplasmic reticulum stress,the ratio of fasting serum proinsulin to C-peptide,between the two groups.Conclusion:Ourfindings reveal that MSCs infusion does not alleviate endoplasmic reticulum stress inβcells directly but modulates the unfolded protein response pathway to preserveβ-cell mass and function in T1D mice. 展开更多
关键词 Type 1 diabetes Mesenchymal stromal cells Endoplasmic reticulum stress Unfolded protein response Non-obese diabetic mice
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C-reactive protein to albumin ratio predict responses to programmed cell death-1 inhibitors in hepatocellular carcinoma patients
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作者 Bai-Bei Li Lei-Jie Chen +3 位作者 Shi-Liu Lu Biao Lei Gui-Lin Yu Shui-Ping Yu 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第1期61-78,共18页
BACKGROUND Over the years,programmed cell death-1(PD-1)inhibitors have been routinely used for hepatocellular carcinoma(HCC)treatment and yielded improved survival outcomes.Nonetheless,significant heterogeneity surrou... BACKGROUND Over the years,programmed cell death-1(PD-1)inhibitors have been routinely used for hepatocellular carcinoma(HCC)treatment and yielded improved survival outcomes.Nonetheless,significant heterogeneity surrounds the outcomes of most studies.Therefore,it is critical to search for biomarkers that predict the efficacy of PD-1 inhibitors in patients with HCC.AIM To investigate the role of the C-reactive protein to albumin ratio(CAR)in evaluating the efficacy of PD-1 inhibitors for HCC.METHODS The clinical data of 160 patients with HCC treated with PD-1 inhibitors from January 2018 to November 2022 at the First Affiliated Hospital of Guangxi Medical University were retrospectively analyzed.RESULTS The optimal cut-off value for CAR based on progression-free survival(PFS)was determined to be 1.20 using x-tile software.Cox proportional risk model was used to determine the factors affecting prognosis.Eastern Cooperative Oncology Group performance status[hazard ratio(HR)=1.754,95%confidence interval(95%CI)=1.045-2.944,P=0.033],CAR(HR=2.118,95%CI=1.057-4.243,P=0.034)and tumor number(HR=2.932,95%CI=1.246-6.897,P=0.014)were independent prognostic factors for overall survival.CAR(HR=2.730,95%CI=1.502-4.961,P=0.001),tumor number(HR=1.584,95%CI=1.003-2.500,P=0.048)and neutrophil to lymphocyte ratio(HR=1.120,95%CI=1.022-1.228,P=0.015)were independent prognostic factors for PFS.Two nomograms were constructed based on independent prognostic factors.The C-index index and calibration plots confirmed that the nomogram is a reliable risk prediction tool.The ROC curve and decision curve analysis confirmed that the nomogram has a good predictive effect as well as a net clinical benefit.CONCLUSION Overall,we reveal that the CAR is a potential predictor of short-and long-term prognosis in patients with HCC treated with PD-1 inhibitors.If further verified,CAR-based nomogram may increase the number of markers that predict individualized prognosis. 展开更多
关键词 C-reactive protein to albumin ratio Hepatocellular carcinoma Programmed cell death-1 inhibitors Prognosis NOMOGRAM
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Polycytosine RNA-binding protein 1 regulates osteoblast function via a ferroptosis pathway in type 2 diabetic osteoporosis
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作者 Hong-Dong Ma Lei Shi +2 位作者 Hai-Tian Li Xin-Dong Wang Mao-Wei Yang 《World Journal of Diabetes》 SCIE 2024年第5期977-987,共11页
BACKGROUND Recently,type 2 diabetic osteoporosis(T2DOP)has become a research hotspot for the complications of diabetes,but the specific mechanism of its occurrence and development remains unknown.Ferroptosis caused by... BACKGROUND Recently,type 2 diabetic osteoporosis(T2DOP)has become a research hotspot for the complications of diabetes,but the specific mechanism of its occurrence and development remains unknown.Ferroptosis caused by iron overload is con-sidered an important cause of T2DOP.Polycytosine RNA-binding protein 1(PCBP1),an iron ion chaperone,is considered a protector of ferroptosis.AIM To investigate the existence of ferroptosis and specific role of PCBP1 in the development of type 2 diabetes.METHODS A cell counting kit-8 assay was used to detect changes in osteoblast viability under high glucose(HG)and/or ferroptosis inhibitors at different concentrations and times.Transmission electron microscopy was used to examine the morpho-logical changes in the mitochondria of osteoblasts under HG,and western blotting was used to detect the expression levels of PCBP1,ferritin,and the ferroptosis-related protein glutathione peroxidase 4(GPX4).A lentivirus silenced and overex-pressed PCBP1.Western blotting was used to detect the expression levels of the osteoblast functional proteins osteoprotegerin(OPG)and osteocalcin(OCN),whereas flow cytometry was used to detect changes in reactive oxygen species(ROS)levels in each group.RESULTS Under HG,the viability of osteoblasts was considerably decreased,the number of mitochondria undergoing atrophy was considerably increased,PCBP1 and ferritin expression levels were increased,and GPX4 expression was decreased.Western blotting results demonstrated that infection with lentivirus overexpressing PCBP1,increased the expression levels of ferritin,GPX4,OPG,and OCN,compared with the HG group.Flow cytometry results showed a reduction in ROS,and an opposite result was obtained after silencing PCBP1.CONCLUSION PCBP1 may protect osteoblasts and reduce the harm caused by ferroptosis by promoting ferritin expression under a HG environment.Moreover,PCBP1 may be a potential therapeutic target for T2DOP. 展开更多
关键词 Polycytosine RNA-binding protein 1 Ferroptosis Reactive oxygen species FERRITIN OSTEOBLAST Type 2 diabetic osteoporosis
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AAV mediated carboxyl terminus of Hsp70 interacting protein overexpression mitigates the cognitive and pathological phenotypes of APP/PS1 mice
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作者 Zhengwei Hu Jing Yang +7 位作者 Shuo Zhang Mengjie Li Chunyan Zuo Chengyuan Mao Zhongxian Zhang Mibo Tang Changhe Shi Yuming Xu 《Neural Regeneration Research》 SCIE CAS 2025年第1期253-264,共12页
The E3 ubiquitin ligase,carboxyl terminus of heat shock protein 70(Hsp70)interacting protein(CHIP),also functions as a co-chaperone and plays a crucial role in the protein quality control system.In this study,we aimed... The E3 ubiquitin ligase,carboxyl terminus of heat shock protein 70(Hsp70)interacting protein(CHIP),also functions as a co-chaperone and plays a crucial role in the protein quality control system.In this study,we aimed to investigate the neuroprotective effect of overexpressed CHIP on Alzheimer’s disease.We used an adeno-associated virus vector that can cross the blood-brain barrier to mediate CHIP overexpression in APP/PS1 mouse brain.CHIP overexpression significantly ameliorated the performance of APP/PS1 mice in the Morris water maze and nest building tests,reduced amyloid-βplaques,and decreased the expression of both amyloid-βand phosphorylated tau.CHIP also alleviated the concentration of microglia and astrocytes around plaques.In APP/PS1 mice of a younger age,CHIP overexpression promoted an increase in ADAM10 expression and inhibitedβ-site APP cleaving enzyme 1,insulin degrading enzyme,and neprilysin expression.Levels of HSP70 and HSP40,which have functional relevance to CHIP,were also increased.Single nuclei transcriptome sequencing in the hippocampus of CHIP overexpressed mice showed that the lysosomal pathway and oligodendrocyte-related biological processes were up-regulated,which may also reflect a potential mechanism for the neuroprotective effect of CHIP.Our research shows that CHIP effectively reduces the behavior and pathological manifestations of APP/PS1 mice.Indeed,overexpression of CHIP could be a beneficial approach for the treatment of Alzheimer’s disease. 展开更多
关键词 adeno-associated virus Alzheimer’s disease APP/PS1 mice carboxyl terminus of Hsp70 interacting protein gene therapy
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Molecular Docking Studies of Botanical Beverage Mix Berries (LIFEGREENTM) against Breast Cancer Cells from Targeted Protein 1QQG, 7B5Q & 7B5O & Uterine Fibroid from Targeted Protein 2AYR, 6T41 & 3GRF
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作者 Ummi Shahieda Lazaroo Bt Zurrein Shah Lazaroo Navanithan Sivanananthan Chua Kia How 《Computational Molecular Bioscience》 2024年第2期59-123,共65页
Fibroids, also called leiomyomas or myomas, are communal tumors of the muscle or uterine wall that affect about 20% of females who are of reproductive age. They can look as if singly or in clusters, and they often cea... Fibroids, also called leiomyomas or myomas, are communal tumors of the muscle or uterine wall that affect about 20% of females who are of reproductive age. They can look as if singly or in clusters, and they often cease to grow after menopause. Fibroids can be classified as intramural, sub serosal, pedunculated, or submucosal based on where they are positioned in the uterus. Although fibroids are benign, they can grow quickly and cause a range of symptoms, such as pelvic pressure, heavy menstrual flow, and infertility. As a result, fibroids are a main reason behind hysterectomy surgeries. The majority of cases of breast cancer are ductal and lobular cancers, making it the second utmost common cancer in women international. Gene mutations like those in BRCA1 or BRCA2 knowingly raise the risk of breast and other cancers, typically with an earlier cancer onset. Cancer risk is influenced by a complex interplay of genetic abnormalities, environmental factors, and lifestyle selections. Further research into these relations is domineering. Although they are common in uterine leiomyomas, especially multiple leiomyomas, MED12 mutations do not significantly correlate with tumor size. These mutations have also been noticed in smooth muscle tumors and leiomyosarcomas, two other types of uterine cancer. The identification of MED12 mutations as the sole genetic abnormality originates in leiomyomas raises the opportunity of a role in the genesis of cancer. 10% - 15% of women who are of reproductive age have endometriosis, which grants serious difficulties because of its chronic nature and range of clinical symptoms. Even after effective surgeries, issues reoccur often, adding to the enormous financial burden. The effects of MED12 mutations have been experiential in recent studies examining the molecular causes of endometriosis-associated infertility, which have shown anomalies in cellular connections and signaling cascades. Computational techniques were used in this study to investigate LifeGreenTM’s potential to prevent uterine fibroids and breast cancer. The efficacy of LifeGreenTM as a preventive measure or a treatment for common gynecological matters was examined and modeled. We investigated the mechanisms underlying LifeGreenTM’s benefits in the treatment of uterine fibroids and breast cancer using computational techniques. Our research contributes to our understanding of its potential therapeutic benefits for women’s health. 展开更多
关键词 Uterine Fibroid Breast Cancer Molecular Docking IRS protein BRCA1 BRCA2 MED12-a ENDOMETRIOSIS
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结直肠癌组织中DJ-1表达对患者区域淋巴结转移及预后的临床意义
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作者 段杨丽 冯洁 +1 位作者 秦家丽 杨华 《国际消化病杂志》 CAS 2024年第4期233-240,共8页
目的 分析结直肠癌(CRC)组织中蛋白/核酸去糖酶1(DJ-1)表达与患者区域淋巴结转移(LNM)及预后的相关性。方法 选择2017年6月至2022年4月在桂林市人民医院接受根治性手术的258例CRC患者作为研究对象,收集了258例患者的CRC组织,其中81例患... 目的 分析结直肠癌(CRC)组织中蛋白/核酸去糖酶1(DJ-1)表达与患者区域淋巴结转移(LNM)及预后的相关性。方法 选择2017年6月至2022年4月在桂林市人民医院接受根治性手术的258例CRC患者作为研究对象,收集了258例患者的CRC组织,其中81例患者有配对的癌旁组织。另选择同期经内镜下治疗的58例患者的结直肠腺瘤组织作为对照。分析CRC组织中不同DJ-1蛋白表达与患者临床病理特征的关系。采用免疫组织化学法分析组织中DJ-1表达情况。采用多因素logistic回归分析探讨区域LNM的预测因素。采用单因素和多因素Cox回归分析探讨影响CRC患者复发及死亡的因素。采用Kaplan-Meier生存曲线分析不同DJ-1表达患者的5年无复发生存率和生存率。结果 3组的DJ-1蛋白表达差异有统计学意义(χ^(2)=202.557,P<0.001)。CRC组织中DJ-1蛋白中度表达和强表达患者的占比均显著高于癌旁组织和结直肠腺瘤组织(P均<0.05)。高表达组患者的年龄偏大,55.56%患者的原发病灶位于左半结肠,低分化CRC患者的占比较高,患者的区域LNM阳性率也较高(P均<0.05)。多因素logistic回归分析结果显示,CRC组织中DJ-1蛋白高表达能独立预测区域LNM和低分化CRC(P均<0.05)。258例患者的5年无复发生存率和生存率分别67.44%和70.54%。单因素和多因素Cox回归分析结果显示,CRC组织中DJ-1蛋白高表达为CRC患者复发和死亡的独立危险因素(P均<0.05)。上述结果与基于Oncomine数据库和TCGA队列的生物信息学分析结果基本一致。结论 CRC组织中DJ-1蛋白高表达与区域LNM相关,这可能是患者预后的影响因素。DJ-1有潜力成为预测CRC患者区域LNM和预后的生物标志物。 展开更多
关键词 蛋白/核酸去糖酶1 区域淋巴结转移 结直肠癌 预后
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DJ-1过表达通过PTEN/Akt通路促进人胃癌MGC803细胞的增殖、迁移、侵袭与上皮间质转化 被引量:2
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作者 周娟 夏红 +3 位作者 刘芳 苏坚 苏波 苏琦 《中国肿瘤生物治疗杂志》 CAS CSCD 北大核心 2023年第7期577-585,共9页
目的:探讨DJ-1基因过表达对人胃癌MGC803细胞增殖、迁移、侵袭与上皮间质转化(EMT)的影响及其机制。方法:利用基因转染技术构建DJ-1基因过表达MGC803细胞,实验分为MGC803、空载体和DJ-1过表达组。采用MTT、平板克隆形成、细胞划痕和Tran... 目的:探讨DJ-1基因过表达对人胃癌MGC803细胞增殖、迁移、侵袭与上皮间质转化(EMT)的影响及其机制。方法:利用基因转染技术构建DJ-1基因过表达MGC803细胞,实验分为MGC803、空载体和DJ-1过表达组。采用MTT、平板克隆形成、细胞划痕和Transwell实验分别检测DJ-1过表达对MGC803细胞增殖、克隆形成、迁移与侵袭的影响;qPCR和WB法检测DJ-1过表达对各组细胞DJ-1、PTEN、Akt、p-Akt、Snail、vimentin、E-cadherin、MMP-9与TIMP-3表达的影响,相差显微镜下观察MGC803细胞形态学的变化。裸鼠荷瘤实验检测DJ-1过表达对MGC803细胞移植瘤体内生长的影响。结果:成功构建DJ-1基因稳定过表达的MGC803细胞。与MGC803组和空载体组比较,DJ-1过表达组细胞的增殖能力与克隆形成数均显著增加(均P<0.05),细胞迁移距离明显增加、划痕距离明显缩短(均P<0.05),迁移与侵袭细胞数显著增多(均P<0.05),DJ-1 mRNA与蛋白表达明显上调、PTEN mRNA与蛋白表达下调(均P<0.05),Akt总蛋白各组比较无明显差异(均P>0.05),p-Akt蛋白表达明显上调(P<0.05),Snail、vimentin与MMP-9表达上调、E-cadherin与TIMP-3表达下调(均P<0.05)。相差显微镜下见长梭形细胞数目增多,圆形与椭圆形细胞减少,异型性更为明显。荷瘤裸鼠体内实验结果表明,与MGC803组相比较,DJ-1过表达组MGC803细胞移植瘤生长速度明显加快、移植瘤质量显著增加(均P<0.05)。结论:DJ-1过表达可通过PTEN/Akt通路在体内外抑制MGC803细胞的增殖、迁移、侵袭与EMT。 展开更多
关键词 胃癌 MGC803细胞 dj-1基因 PTEN/Akt通路 增殖 迁移 侵袭 上皮间质转化
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膀胱癌组织中高迁移率族蛋白B1、DJ-1的表达及其临床意义研究 被引量:1
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作者 赵朋 杨拓 +5 位作者 王金铸 蔡科科 刘立朋 刘鹏 白铁男 念学武 《中国中西医结合外科杂志》 CAS 2023年第3期348-353,共6页
目的:探讨高迁移率族蛋白B1(HMGB-1)和帕金森病相关蛋白(DJ-1)在膀胱癌不同组织中的表达及其临床意义。方法:收集2005年1月—2015年1月天津医科大学第二医院和天津市南开医院收治的58例膀胱癌组织为实验组,其癌旁正常组织为对照组。应... 目的:探讨高迁移率族蛋白B1(HMGB-1)和帕金森病相关蛋白(DJ-1)在膀胱癌不同组织中的表达及其临床意义。方法:收集2005年1月—2015年1月天津医科大学第二医院和天津市南开医院收治的58例膀胱癌组织为实验组,其癌旁正常组织为对照组。应用免疫组织化学方法检测膀胱癌组织与癌旁组织中HMGB-1和DJ-1蛋白表达情况,分析二者的表达率与膀胱癌临床病理特征及患者预后的关系,Spearman相关分析膀胱癌中HMGB-1与DJ-1表达的相关性,Cox多因素回归分析膀胱癌患者预后的影响因素。结果:膀胱癌中HMGB-1、DJ-1阳性表达率高于癌旁组织,差异有统计学意义(P<0.05);HMGB-1蛋白表达水平与病理分型、病理分级、淋巴结转移、TNM分期有关,肿瘤分化越差、淋巴结有转移、分期越高,HMGB-1蛋白表达水平越高(P<0.05)。DJ-1在58例膀胱癌中的表达与肿瘤数目、淋巴结转移、TNM分期有关,肿瘤多发、分期越高、淋巴结有转移,DJ-1蛋白表达水平越高(P<0.05)。Spearman相关分析结果显示,HMGB-1与DJ-1表达水平呈正相关(r=0.421,P<0.05)。HMGB-1和DJ-1蛋白表达水平较高的患者无病生存期低于HMGB-1和DJ-1蛋白低表达组(P<0.05)。Cox回归模型分析显示,HMGB-1和DJ-1阳性、腺癌、鳞癌、病理分级高、有淋巴结转移、TNM分期高是膀胱癌患者预后的独立危险因素。结论:检测膀胱癌组织中HMGB-1和DJ-1的表达水平有助于预测与评估膀胱癌的侵袭、转移及预后的风险,为膀胱癌围手术期的合理治疗方案选择提供重要依据。 展开更多
关键词 膀胱癌 高迁移率族蛋白B1 帕金森病相关蛋白
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NRG1、HER3在前列腺癌组织中的表达及其与临床病理特征和预后的关系 被引量:1
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作者 王潇然 陆巍 +5 位作者 于欣 王永杰 王勇 廉吉虎 李震霄 宋海涛 《疑难病杂志》 CAS 2024年第1期63-67,共5页
目的研究前列腺癌(PC)组织中神经调节蛋白1(NRG1)、人表皮生长因子受体3(HER3)表达与临床病理特征及预后的关系。方法选取2015年2月—2020年2月吉林省人民医院泌尿外科诊治PC患者96例,免疫组织化学检测组织中NRG1、HER3表达;Kaplan-Meie... 目的研究前列腺癌(PC)组织中神经调节蛋白1(NRG1)、人表皮生长因子受体3(HER3)表达与临床病理特征及预后的关系。方法选取2015年2月—2020年2月吉林省人民医院泌尿外科诊治PC患者96例,免疫组织化学检测组织中NRG1、HER3表达;Kaplan-Meier曲线(Log-Rank检验)比较不同NRG1、HER3表达对PC患者预后的影响;COX回归分析PC患者预后的影响因素。结果PC癌组织中NRG1、HER3阳性率分别为78.13%(75/96)、75.00%(72/96),高于癌旁组织6.25%(6/96)、8.33%(8/96)(χ^(2)/P=101.670/<0.001,87.771/<0.001)。TNM分期Ⅲ期、Gleason评分>7分及术前PSA水平≥20μg/L患者癌组织中NRG1、HER3阳性率大于TNM分期Ⅰ~Ⅱ期、Gleason评分≤7分及术前PSA水平<20μg/L(χ^(2)/P=6.181/0.013,8.533/0.003;7.731/0.005,6.769/0.009;6.508/0.011,7.376/0.007)。NRG1阳性组、HER3阳性组3年累积无进展生存率分别低于NRG1阴性组、HER3阴性组(χ^(2)/P=4.267/0.039,5.499/0.019)。TNM分期Ⅲ期、Gleason评分>7分、术前PSA≥20μg/L、NRG1阳性,HER3阳性是影响PC患者预后的独立危险因素[OR(95%CI)=1.448(1.118~1.875),1.401(1.138~1.724),1.353(1.059~1.728),1.338(1.057~1.692),1.293(1.014~1.649)]。结论PC癌组织中NRG1、HER3表达升高,与PC不良临床病理特征相关,是新的评估PC预后的肿瘤标志物。 展开更多
关键词 前列腺癌 神经调节蛋白1 人表皮生长因子受体3 预后
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DJ-1通过保护线粒体复合体I活性介导白藜芦醇减轻大鼠心肌缺血再灌注损伤 被引量:1
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作者 任建民 刘慧茹 +4 位作者 刘松 李晓琪 何康 汤蕾 陈和平 《中国病理生理杂志》 CAS CSCD 北大核心 2023年第12期2185-2192,共8页
目的:从DJ-1蛋白调节线粒体复合体I活性的角度,探讨DJ-1介导白藜芦醇(RES)预处理对抗大鼠心肌缺血再灌注(I/R)所诱发的氧化应激损伤的分子机制。方法:心肌内注射DJ-1敲减(sh-DJ-1)或阴性对照(NC)慢病毒后,通过结扎大鼠冠状动脉左前降支... 目的:从DJ-1蛋白调节线粒体复合体I活性的角度,探讨DJ-1介导白藜芦醇(RES)预处理对抗大鼠心肌缺血再灌注(I/R)所诱发的氧化应激损伤的分子机制。方法:心肌内注射DJ-1敲减(sh-DJ-1)或阴性对照(NC)慢病毒后,通过结扎大鼠冠状动脉左前降支法构建心肌I/R模型。将SD大鼠随机分为6组:假手术(sham)组、I/R组、RES+I/R组、NC+RES+I/R组、sh-DJ-1+RES+I/R组和I_(A)CS-010759(线粒体复合体I抑制剂)+RES+I/R组,每组10只。在心肌I/R模型前7 d通过灌胃给予RES(20 mg/kg),每日一次。此外,sham和I/R组大鼠均通过灌胃接受等体积的生理盐水。TTC染色和超声心动图分别观察心肌梗死面积和心功能变化情况;MitoSOX荧光探针检测心肌中线粒体活性氧(ROS)水平;试剂盒检测血清中丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性和乳酸脱氢酶(LDH)活性;结合Western blot和免疫共沉淀实验观察DJ-1与线粒体复合体I的两个亚基ND-1和NDUFA4的相互作用。结果:与I/R组相比,RES预处理可显著降低心肌梗死面积、心脏组织中线粒体ROS水平,以及血清中LDH活性和MDA含量(P<0.01),提高左室射血分数、左室短轴缩短率和血清中SOD活性(P<0.01),增加DJ-1的表达及DJ-1的线粒体转位(P<0.01),促进DJ-1与ND-1/NDUFA4的相互作用进而保护线粒体复合体I的活性(P<0.01)。然而,与RES+I/R组相比,敲减DJ-1的表达后,RES减轻心肌I/R损伤的作用被显著抑制(P<0.05或P<0.01)。结论:RES预处理可增加DJ-1的表达和线粒体易位,促进DJ-1与线粒体复合体I的ND1和NDUFA4亚基的相互作用,从而保护线粒体复合体I的活性并减轻心肌I/R所诱发的氧化应激损伤。 展开更多
关键词 白藜芦醇 dj-1蛋白 线粒体复合体I 心肌缺血 再灌注损伤 氧化应激
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血清HMGB1、CCL20、HSP27水平与慢性牙周炎患者牙周病变程度的相关性分析 被引量:1
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作者 王伟新 张丽娜 《河南医学研究》 CAS 2024年第2期252-255,共4页
目的探讨血清高迁移率族蛋白1(HMGB1)、CC趋化因子配体20(CCL20)、热休克蛋白27(HSP27)水平与慢性牙周炎(CP)患者牙周病变程度的相关性。方法选取2021年9月至2023年8月在新乡医学院第一附属医院诊治的60例CP患者纳入观察组,根据1∶1原则... 目的探讨血清高迁移率族蛋白1(HMGB1)、CC趋化因子配体20(CCL20)、热休克蛋白27(HSP27)水平与慢性牙周炎(CP)患者牙周病变程度的相关性。方法选取2021年9月至2023年8月在新乡医学院第一附属医院诊治的60例CP患者纳入观察组,根据1∶1原则,另选取同期牙周健康者60例纳入对照组。比较两组及不同牙周病变程度CP患者血清HMGB1、CCL20、HSP27水平,分析各指标水平与CP牙周病变程度的相关性及联合诊断价值,并分析不同血清水平患者发生CP的危险度。结果观察组血清HMGB1、CCL20、HSP27水平高于对照组(P<0.05);不同牙周病变程度CP患者血清HMGB1、CCL20、HSP27水平比较:轻度<中度<重度,且各指标水平与牙周病变程度均呈正相关(P<0.05);入院时HMGB1、CCL20、HSP27水平联合诊断CP的曲线下面积(AUC)为0.905,最佳诊断敏感度为91.67%,特异度为88.33%,约登指数0.800,且各指标高水平患者发生CP的危险度是低水平的1.105倍、1.034倍、1.105倍(P<0.05)。结论HMGB1、CCL20、HSP27在CP患者血清中呈异常高表达,各指标水平与牙周病变程度均呈正相关,且联合检测对CP具有较高诊断价值,可作为临床诊断CP、评估牙周病变程度的有效指标。 展开更多
关键词 高迁移率族蛋白1 CC趋化因子配体20 热休克蛋白27 慢性牙周炎
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