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Association between Maternal Serum Concentrations of Angiopoietin-like Protein 2 in Early Pregnancy and Subsequent Risk of Gestational Diabetes Mellitus 被引量:12
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作者 Yan Zhang Shan Lu Rong Li 《Chinese Medical Journal》 SCIE CAS CSCD 2016年第19期2308-2312,共5页
Background:A recent study reported a positive association between elevated serum levels of angiopoietin-like protein 2 (ANGPTL2) and the development of type 2 diabetes in a general population.However,the relationsh... Background:A recent study reported a positive association between elevated serum levels of angiopoietin-like protein 2 (ANGPTL2) and the development of type 2 diabetes in a general population.However,the relationship of serum ANGPTL2 levels with the risk of developing gestational diabetes mellitus (GDM) has not been reported to date.The aim of this study was to investigate the change of maternal serum ANGPTL2 concentrations in the first trimester of pregnancy and to determine whether ANGPTL2 is a biomarker for subsequent GDM development.Methods:We conducted a prospective,nested case-control study in a pregnancy cohort.First-trimester ANGPTL2 levels were measured using a high-resolution assay in 89 women who subsequently developed GDM and in a random sample of 177 women who remained euglycemic throughout the pregnancy.Median ANGPTL2 levels were compared using Mann-Whitney U-test.Logistic regression was used to compute unadjusted and multivariable-adjusted odds ratios for developing GDM among ANGPTL2 quartiles.Results:The serum levels of ANGPTL2 was higher in women with GDM than that in women without GDM (3.06 [2.59,3.65] ng/ml vs.2.46 [2.05,2.96] ng/ml,P =0.003).Fasting blood glucose was higher in women with GDM than that in women without GDM (5.0 ± 0.9 mmol/L vs.4.4 ± 0.6 mmol/L,P 〈 0.001).Glucose challenge test showed that the blood glucose was higher in women with GDM than that in women without GDM (9.1 ± 3.5 mmol/L vs.6.2 ± 1.2 mmol/L,P 〈 0.001).A multivariate model adjusted for baseline characteristics,medical complications,and gestational characteristics revealed that the risk of developing GDM among women in Q4 compared with Q1 was 2.90-fold more likely to develop GDM later in pregnancy.Conclusions:At 1 1-13 weeks in pregnancies that develop GDM,the serum concentration of ANGPTL2 is increased,and it can be combined with maternal factors to provide effective early screening for GDM. 展开更多
关键词 angiopoietin-like protein 2 First-trimester Pregnancy Gestational Diabetes Mellitus PREGNANCY
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Predictive value of angiopoietin-like protein 8 in metabolic dysfunction-associated fatty liver disease and its progression:A case-control study
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作者 Lu-Lu Gan Can Xia +6 位作者 Xuan Zhu Yue Gao Wen-Chang Wu Qi Li Ling Li Zhe Dai Yi-Min Yan 《World Journal of Diabetes》 SCIE 2024年第3期418-428,共11页
BACKGROUND The prevalence of metabolic dysfunction-associated fatty liver disease(MAFLD)is rapidly increasing,currently affecting approximately 25%of the global population.Liver fibrosis represents a crucial stage in ... BACKGROUND The prevalence of metabolic dysfunction-associated fatty liver disease(MAFLD)is rapidly increasing,currently affecting approximately 25%of the global population.Liver fibrosis represents a crucial stage in the development of MAFLD,with advanced liver fibrosis elevating the risks of cirrhosis and hepatocellular carcinoma.Simple serum markers are less effective in diagnosing liver fibrosis compared to more complex markers.However,imaging techniques like transient elastography face limitations in clinical application due to equipment and technical constraints.Consequently,it is imperative to identify a straightforward yet effective method for assessing MAFLD-associated liver fibrosis.AIM To investigate the predictive value of angiopoietin-like protein 8(ANGPTL8)in MAFLD and its progression.METHODS We analyzed 160 patients who underwent abdominal ultrasonography in the Endocrinology Department,Xiaogan Central Hospital affiliated to Wuhan University of Science and Technology,during September 2021-July 2022.Using abdominal ultrasonography and MAFLD diagnostic criteria,among the 160 patients,80 patients(50%)were diagnosed with MAFLD.The MAFLD group was divided into the liver fibrosis group(n=23)and non-liver fibrosis group(n=57)by using a cut-off fibrosis-4 index≥1.45.Logistical regression was used to analyze the risk of MAFLD and the risk factors for its progression.Receiver operating characteristic curves were used to evaluate the predictive value of serum ANGPTL8 in MAFLD and its progression.RESULTS Compared with non-MAFLD patients,MAFLD patients had higher serum ANGPTL8 and triglyceride-glucose(TyG)index(both P<0.05).Serum ANGPTL8(r=0.576,P<0.001)and TyG index(r=0.473,P<0.001)were positively correlated with MAFLD.Serum ANGPTL8 was a risk factor for MAFLD[odds ratio(OR):1.123,95%confidence interval(CI):1.066-1.184,P<0.001).Serum ANGPTL8 and ANGPTL8+TyG index predicted MAFLD[area under the curve(AUC):0.832 and 0.886,respectively;both P<0.05].Compared with MAFLD patients without fibrosis,those with fibrosis had higher serum ANGPTL8 and TyG index(both P<0.05),and both parameters were positively correlated with MAFLD-associated fibrosis.Elevated serum ANGPTL8(OR:1.093,95%CI:1.044-1.144,P<0.001)and TyG index(OR:2.383,95%CI:1.199-4.736,P<0.013)were risk factors for MAFLD-associated fibrosis.Serum ANGPTL8 and ANGPTL8+TyG index predicted MAFLD-associated fibrosis(AUC:0.812 and 0.835,respectively;both P<0.05).CONCLUSION The serum levels of ANGPTL8 are elevated and positively correlated with MAFLD.They can serve as predictors for the risk of MAFLD and liver fibrosis,with the ANGPTL8+TyG index potentially exhibiting even higher predictive value. 展开更多
关键词 angiopoietin-like protein 8 Metabolic dysfunction-associated fatty liver disease Fibrosis-4 index Liver fibrosis
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C反应蛋白/白蛋白比值对2型糖尿病合并急性心肌梗死患者远期不良心脑血管事件的预测价值研究
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作者 马娟 马盛宗 +2 位作者 燕茹 马学平 贾绍斌 《中国全科医学》 CAS 北大核心 2025年第6期705-712,共8页
背景急性心肌梗死(AMI)是威胁全球公众健康的主要原因之一。虽然已有相应的再灌注治疗策略,但AMI相关的主要不良心脑血管事件(MACCEs)仍然是全世界人口死亡的原因之一。尤其合并糖尿病的AMI患者,因冠状动脉病变复杂,病变程度严重,尽早... 背景急性心肌梗死(AMI)是威胁全球公众健康的主要原因之一。虽然已有相应的再灌注治疗策略,但AMI相关的主要不良心脑血管事件(MACCEs)仍然是全世界人口死亡的原因之一。尤其合并糖尿病的AMI患者,因冠状动脉病变复杂,病变程度严重,尽早发现和判断该部分患者远期预后相对困难,因此寻找相对简便、易获得的实验室指标,有利于为2型糖尿病(T2DM)合并AMI患者经皮冠状动脉介入(PCI)术后MACCEs的预测提供依据。目的探讨血清C反应蛋白(CRP)/白蛋白(Alb)比值(CAR)对T2DM合并AMI患者PCI术后远期MACCEs的预测价值。方法纳入2014—2019年就诊于宁夏医科大学总医院心血管内科1683例T2DM合并AMI患者为研究对象,收集患者的一般临床资料与检查结果。对所有患者进行电话或门诊随访,以全因死亡、非致死性心肌梗死、再发不稳定型心绞痛、非致死性脑卒中、新发心力衰竭或心力衰竭加重再入院、再次血运重建作为MACCEs。根据患者随访期间是否发生MACCEs分为MACCEs组(508例)和非MACCEs组(1175例)。采用单因素及多因素Logistic回归分析探讨T2DM合并AMI患者MACCEs事件的影响因素。采用Kaplan-Meier法绘制患者的生存曲线,生存曲线的比较采用Log-rank检验。采用受试者工作特征(ROC)曲线分析CAR对T2DM合并AMI患者远期发生MACCEs的预测效能,使用净重分类改善指标(NRI)和综合判别指数(IDI)评价CAR对T2DM合并AMI患者预后评估的改善效果。结果1683例患者中508例(30.18%)患者发生MACCEs。多因素Logistic回归分析显示高血压病[OR(95%CI)=1.994(1.142~3.483)]、冠状动脉植入支架长度[OR(95%CI)=1.031(1.002~1.062)]、CRP[OR(95%CI)=0.950(0.915~0.986)]、Alb[OR(95%CI)=0.933(0.880~0.989)]及CAR[OR(95%CI)=5.582(1.705~18.277)]是T2DM合并AMI患者PCI术后发生MACCEs的影响因素(P<0.05)。根据CAR中位表达水平(0.86),将患者分为CAR<0.86组和CAR≥0.86组,Log-rank检验结果显示,CAR≥0.86组MACCEs发生率高于CAR<0.86组(52.68%与22.92%;χ^(2)=65.65,P<0.001)。ROC曲线显示CAR预测T2DM合并AMI患者发生MACCEs的ROC曲线下面积为0.728(95%CI=0.702~0.754),最佳截断值为0.576,灵敏度为0.617,特异度为0.747。在基线模型基础上,与CRP、Alb相比,CAR能明显改善对患者发生MACCEs的预测效果(NRI=0.377,IDI=0.166,C指数=0.690;P<0.05)。结论CAR是T2DM合并AMI患者PCI术后远期MACCEs发生风险的有效预测指标。 展开更多
关键词 心肌梗死 糖尿病 2 主要不良心脑血管事件 C反应蛋白 白蛋白 预测
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响应面法优化信号分子AI-2合成蛋白LuxS表达条件
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作者 李祎 韩朔 +2 位作者 王玉琪 秦梦园 吴晓敏 《河南师范大学学报(自然科学版)》 CAS 北大核心 2025年第1期136-143,I0009,共9页
群体感应是一种由自诱导物(autoinducers,AIs)介导的、细菌密度依赖的基因表达调控方式,已经被证实参与细菌多种生理功能的调控.信号分子AI-2介导的LuxS/AI-2型群体感应系统广泛存在于革兰氏阳性和阴性细菌,并备受关注.AI-2的合成依赖... 群体感应是一种由自诱导物(autoinducers,AIs)介导的、细菌密度依赖的基因表达调控方式,已经被证实参与细菌多种生理功能的调控.信号分子AI-2介导的LuxS/AI-2型群体感应系统广泛存在于革兰氏阳性和阴性细菌,并备受关注.AI-2的合成依赖于S-核糖同型半胱氨酸酶(LuxS)的催化作用,而LuxS蛋白则是由luxS基因经过转录、翻译得到的.为了探索LuxS蛋白在表达菌株Escherichia coli BL21(DE3)中的最佳表达条件,从而获得较高产量且具有一定的生物活性的LuxS蛋白.首先对LuxS蛋白结构进行预测,确定E.coli BL21(DE3)作为表达菌株.其次,在单因素优化的基础上,进一步通过响应面法优化LuxS蛋白的表达条件.在菌液浓度OD 600为0.5、诱导温度为37℃、IPTG浓度为0.5 mmol/L、诱导时间为31 h条件下,获得LuxS蛋白的最高表达量.研究成功优化了LuxS蛋白在E.coli BL21(DE3)中的诱导表达条件,获得了具有生物活性的LuxS蛋白,并在后续的研究中成功合成了具有生物活性的信号分子AI-2,为体外合成AI-2奠定了基础. 展开更多
关键词 群体感应 AI-2 LuxS蛋白 原核表达 条件优化
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内皮细胞特异性骨形态发生蛋白2对血管新生的影响:生物信息学分析和实验验证
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作者 燕茹 王凯茹 +2 位作者 张飞燕 贾绍斌 丛广志 《中国组织工程研究》 CAS 北大核心 2025年第1期103-110,共8页
背景:血管新生是心血管疾病的主要干预靶点,骨形态发生蛋白2具有调控血管新生作用,但内皮细胞特异性骨形态发生蛋白2对血管新生的调控作用不清楚。目的:探讨内皮细胞特异性骨形态发生蛋白2对血管新生的影响。方法:(1)生物信息学分析:通... 背景:血管新生是心血管疾病的主要干预靶点,骨形态发生蛋白2具有调控血管新生作用,但内皮细胞特异性骨形态发生蛋白2对血管新生的调控作用不清楚。目的:探讨内皮细胞特异性骨形态发生蛋白2对血管新生的影响。方法:(1)生物信息学分析:通过Panglao DB公共基因表达数据库单细胞转录组荟萃分析观察骨形态发生蛋白2细胞群表达丰度和定位。血管新生小鼠和内皮(心内膜)过表达骨形态发生蛋白2小鼠转录组测序数据集探索内皮细胞骨形态发生蛋白2对血管新生信号通路的调控作用。(2)体内实验验证:建立小鼠后肢缺血模型,对比模型小鼠患侧与健侧缺血后肢7,14和21 d血流灌注情况,免疫荧光和免疫组织化学染色评估小鼠骨形态发生蛋白2和CD31的表达定位情况。(3)体外实验验证:体外培养人脐静脉内皮细胞,分为对照组、缺氧组和骨形态发生蛋白2抑制剂(Noggin蛋白)干预组,培养24 h,观察各组内皮细胞血管新生情况。结果与结论:(1)内皮细胞是表达骨形态发生蛋白2的重要细胞亚群,在血管新生内皮细胞和骨形态发生蛋白2过表达内皮细胞转录组再分析均发现骨形态发生蛋白2表达明显升高,血管新生通路明显激活。(2)缺血7 d小鼠新生血管周围骨形态发生蛋白2阳性血管明显增加(P<0.05),缺血2周骨形态发生蛋白2阳性血管明显减少(P<0.001)。(3)体外培养人脐静脉内皮细胞,缺氧干预后,内皮细胞迁移能力和血管出芽明显增加,血管新生因子血管内皮生长因子和血小板衍生生长因子的表达明显升高,Noggin明显减少了缺氧诱导的内皮细胞血管新生(P<0.001),并下调血管内皮生长因子和血小板衍生生长因子的表达(P<0.01)。(4)结果证实,内皮细胞特异性骨形态发生蛋白2具有调控血管新生作用,靶向性内皮细胞骨形态发生蛋白2可望改善血管新生。 展开更多
关键词 内皮细胞 骨形态发生蛋白2 血管新生 单细胞RNA测序 批量RNA测序 信号通路 后肢缺血模型 成管实验
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Low-density lipoprotein receptor-related protein 2(LRP2)is required for lipid export in the midgut of the migratory locust,Locusta migratoria 被引量:1
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作者 Yiyan Zhao Weimin Liu +6 位作者 Xiaoming Zhao Zhitao Yu Hongfang Guo Yang Yang Hans Merzendorfer Kun Yan Zhu Jianzhen Zhang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第5期1618-1633,共16页
Low-density lipoprotein receptor-related protein 2(LRP2)is a multifunctional endocytic receptor expressed in epithelial cells.In mammals,it acts as an endocytic receptor that mediates the cellular uptake of cholestero... Low-density lipoprotein receptor-related protein 2(LRP2)is a multifunctional endocytic receptor expressed in epithelial cells.In mammals,it acts as an endocytic receptor that mediates the cellular uptake of cholesterol-containing apolipoproteins to maintain lipid homeostasis.However,little is known about the role of LRP2 in lipid homeostasis in insects.In the present study,we investigated the function of LRP2 in the migratory locust Locusta migratoria(LmLRP2).The mRNA of LmLRP2 is widely distributed in various tissues,including integument,wing pads,foregut,midgut,hindgut,Malpighian tubules and fat body,and the amounts of LmLRP2 transcripts decreased gradually in the early stages and then increased in the late stages before ecdysis during the nymphal developmental stage.Fluorescence immunohistochemistry revealed that the LmLRP2 protein is mainly located in cellular membranes of the midgut and hindgut.Using RNAi to silence LmLRP2 caused molting defects in nymphs(more than 60%),and the neutral lipid was found to accumulate in the midgut and surface of the integument,but not in the fat body,of dsLmLRP2-treated nymphs.The results of a lipidomics analysis showed that the main components of lipids(diglyceride and triglyceride)were significantly increased in the midgut,but decreased in the fat body and hemolymph.Furthermore,the content of total triglyceride was significantly increased in the midgut,but markedly decreased in the fat body and hemolymph in dsLmLRP2-injected nymphs.Our results indicate that LmLRP2 is located in the cellular membranes of midgut cells,and is required for lipid export from the midgut to the hemolymphand fat body in locusts. 展开更多
关键词 Locusta migratoria low-density lipoprotein receptor-related protein 2 MIDGUT lipids transport RNAi
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Polycytosine RNA-binding protein 1 regulates osteoblast function via a ferroptosis pathway in type 2 diabetic osteoporosis 被引量:1
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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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Clinical and experimental study on angiopoietin-like protein 8 associated with proliferative diabetic retinopathy 被引量:9
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作者 Chang-Xia Dong Cai-Ping Song +4 位作者 Chun-Ping Zhang Mei Dong Xiu-Rong Gong He-Ying Gao Hong Wang 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第12期1819-1823,共5页
AIM:To confirm the role of angiopoietin-like protein 8(Angptl 8) in proliferative diabetic retinopathy(PDR).METHODS:The sera and aqueous humor of 10 PDR patients and 10 non-diabetic retinopathy(NDR) patients(... AIM:To confirm the role of angiopoietin-like protein 8(Angptl 8) in proliferative diabetic retinopathy(PDR).METHODS:The sera and aqueous humor of 10 PDR patients and 10 non-diabetic retinopathy(NDR) patients(idiopathic macular hole patients) were collected and the expression of Angptl 8 was detected by enzyme linked immune-sorbent assay(ELISA).Experimental diabetes mice model was induced with streptozotocin.The expression of glycosylated hemoglobin and Angptl 8 in sera was detected.Recombinant Angptl 8 was re-infused into wild type(WT) diabetic mice and spatial frequency threshold and contrast sensitivity were measured.In vitro retinal pigment epithelium(RPE) were stimulated by recombinant Angptl 8 for 24 h.MMT assay were used to detect cell proliferation.At the same time,q RT-PCR and Western blot was used to measure the expression of proliferation-related factors in PRE cells.RESULTS:The expression of Angptl 8 was markedly increased in the sera and aqueous humor of PDR patients(F=99.02,P〈0.0001 in sera;t=10.42,P〈0.0001 in aqueous).After successfully establishing the diabetic mice model,we found that glycosylated hemoglobin and Angptl 8 expression levels were increased.Re-infusion of recombinant Angptl 8 into WT diabetic mice could further decrease spatial frequency threshold and contrast sensitivity(P〈0.01).In vitro,RPE cells stimulated by recombinant Angptl 8could increase the relative absorbance of MMT assay(1.486±0.042 vs 1.000±0.104,P〈0.05) and proliferating cell nuclear antigen(PCNA) expression(0.55±0.01 vs 0.29±0.03,P〈0.05).The proliferative effect of Angptl 8 is mainly mediated by increasing the expression of proliferation-activating factors cyclin A1(4.973±0.205 vs 2.720±0.197,P〈0.05),cyclin F(5.690±0.219 vs 4.297±0.292,P〈0.05) and E2 F2(2.297±0.102 vs 1.750±0.146,P〈0.05),and reducing the expression of proliferation-inhibiting factors cdkn1(2.370±0.074 vs 3.317±0.135,P〈0.05) and cdkn2(4.793±0.065 vs 5.387±0.149,P〈0.05).CONCLUSION:The expression of Angptl 8 is increased in PDR,and the increased Angptl 8 can promote proliferation and increase proliferation-related factors. 展开更多
关键词 angiopoietin-like protein 8 proliferative diabeticretinopathy retinal pigment epithelium proliferation
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Angiopoietin-like protein 3 (ANGPTL3) deficiency and familial combined hypolipidemia 被引量:2
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作者 Patrizia Tarugi Stefano Bertolini Sebastiano Calandra 《The Journal of Biomedical Research》 CAS CSCD 2019年第2期73-81,共9页
Three members of the angiopoietin-like(ANGPTL) protein family-ANGPTL3, ANGPTL4 and ANGPTL8-are important regulators of plasma lipoproteins. They inhibit the enzyme lipoprotein lipase, which plays a key role in the int... Three members of the angiopoietin-like(ANGPTL) protein family-ANGPTL3, ANGPTL4 and ANGPTL8-are important regulators of plasma lipoproteins. They inhibit the enzyme lipoprotein lipase, which plays a key role in the intravascular lipolysis of triglycerides present in some lipoprotein classes. This review focuses on the role of ANGPTL3 as emerged from the study of genetic variants of Angptl3 gene in mice and humans. Both loss of function genetic variants and inactivation of Angptl3 gene in mice are associated with a marked reduction of plasma levels of triglyceride and cholesterol and an increased activity of lipoprotein lipase and endothelial lipase. In humans with ANGPTL3 deficiency, caused by homozygous loss of function(LOF) variants of Angptl3 gene, the levels of all plasma lipoproteins are greatly reduced. This plasma lipid disorder referred to as familial combined hypolipidemia(FHBL2) does not appear to be associated with distinct pathological manifestations. Heterozygous carriers of LOF variants have reduced plasma levels of total cholesterol and triglycerides and are at lower risk of developing atherosclerotic cardiovascular disease, as compared to non-carriers. These observations have paved the way to the development of strategies to reduce the plasma level of atherogenic lipoproteins in man by the inactivation of ANGPTL3, using either a specific monoclonal antibody or anti-sense oligonucleotides. 展开更多
关键词 angiopoietin-like protein 3 ANGPTL3 DEFICIENCY LOSS of function VARIANTS FHBL2
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Angiopoietin-Like Protein 3 Expression is Down-Regulated in Experimentally Pregnant Toxemic Goats 被引量:2
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作者 CHEN Xiao-jun BAI Xia +7 位作者 MAI Pei CAI Jie LIU Zhao-ying WANG Hui XIAO Hong-bo DONG Wei WANG Shui-lian SUN Zhi-liang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第7期1181-1188,共8页
Pregnancy toxemia is a metabolic disorder of lipid and glucose. Recent investigations have found that angiopoietin-like protein 3 (ANGPTL3) can contribute to disorder of carbohydrate and lipid metabolism. The presen... Pregnancy toxemia is a metabolic disorder of lipid and glucose. Recent investigations have found that angiopoietin-like protein 3 (ANGPTL3) can contribute to disorder of carbohydrate and lipid metabolism. The present study was conducted to investigate the change of ANGPTL3 expression during pregnancy toxemia, We firstly cloned the full-length cDNA of ANGPTL3 in Liuyang Black goats, revealing that goat ANGPTL3 had the typical structure of the angiopoietin-like family, and its mRNA was exclusively expressed in liver. Pregnancy toxemia of pregnant goat does with twins during late gestation was induced by being fasted for 72 h, and then they were recovered after 5 d ofrefeeding. Hepatic ANGPTL3 gene expression was significantly down-regulated concomitantly with decreased serum glucose concentration, elevated serum β-hydroxybutyrate and free fatty acid levels in pregnant toxemic goats, and these changes were reversed after refeeding. These results suggest ANGPTL3 may play a certain role in the development of pregnancy toxemia in goats. 展开更多
关键词 angiopoietin-like protein 3 CLONE pregnancy toxemia GOAT
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Recombinant angiopoietin-like protein 4 attenuates intestinal barrier structure and function injury after ischemia/reperfusion 被引量:4
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作者 Zi-Yi Wang Jian-Yu Lin +8 位作者 Yang-Rong Feng De-Shun Liu Xu-Zi Zhao Tong Li Si-Yuan Li Jing-Chao Sun Shu-Feng Li Wen-Yan Jia Hui-Rong Jing 《World Journal of Gastroenterology》 SCIE CAS 2021年第32期5404-5423,共20页
BACKGROUND Intestinal barrier breakdown,a frequent complication of intestinal ischemiareperfusion(I/R)including dysfunction and the structure changes of the intestine,is characterized by a loss of tight junction and e... BACKGROUND Intestinal barrier breakdown,a frequent complication of intestinal ischemiareperfusion(I/R)including dysfunction and the structure changes of the intestine,is characterized by a loss of tight junction and enhanced permeability of the intestinal barrier and increased mortality.To develop effective and novel therapeutics is important for the improvement of outcome of patients with intestinal barrier deterioration.Recombinant human angiopoietin-like protein 4(rhANGPTL4)is reported to protect the blood-brain barrier when administered exogenously,and endogenous ANGPTL4 deficiency deteriorates radiationinduced intestinal injury.AIM To identify whether rhANGPTL4 may protect intestinal barrier breakdown induced by I/R.METHODS Intestinal I/R injury was elicited through clamping the superior mesenteric artery for 60 min followed by 240 min reperfusion.Intestinal epithelial(Caco-2)cells and human umbilical vein endothelial cells were challenged by hypoxia/reoxygenation to mimic I/R in vitro.RESULTS Indicators including fluorescein isothiocyanate-conjugated dextran(4 kilodaltons;FD-4)clearance,ratio of phosphorylated myosin light chain/total myosin light chain,myosin light chain kinase and loss of zonula occludens-1,claudin-2 and VE-cadherin were significantly increased after intestinal I/R or cell hypoxia/reoxygenation.rhANGPTL4 treatment significantly reversed these indicators,which were associated with inhibiting the inflammatory and oxidative cascade,excessive activation of cellular autophagy and apoptosis and improvement of survival rate.Similar results were observed in vitro when cells were challenged by hypoxia/reoxygenation,whereas rhANGPTL4 reversed the indicators close to normal level in Caco-2 cells and human umbilical vein endothelial cells significantly.CONCLUSION rhANGPTL4 can function as a protective agent against intestinal injury induced by intestinal I/R and improve survival via maintenance of intestinal barrier structure and functions. 展开更多
关键词 angiopoietin-like protein 4 Intestinal ischemia/reperfusion COVID-19 Myosin light chain kinase Intestinal barrier breakdown
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Exploration of cyclooxygenase-2 inhibitory peptides from walnut dreg proteins based on in silico and in vitro analysis
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作者 Zishan Hong Jing Xie +8 位作者 Liang Tao Jing-Jing Dai Tingting Li Li Zhang Yuying Bai Xia Hu Jinlian Chen Jun Sheng Yang Tian 《Food Science and Human Wellness》 SCIE CSCD 2024年第3期1636-1644,共9页
Walnut dreg protein hydrolysates(WDPHs)exhibit a variety of biological activities,however,the cyclooxygenase-2(COX-2)inhibitory peptide of WDPHs remain unclear.The aim of this study was to rapidly screen for such pept... Walnut dreg protein hydrolysates(WDPHs)exhibit a variety of biological activities,however,the cyclooxygenase-2(COX-2)inhibitory peptide of WDPHs remain unclear.The aim of this study was to rapidly screen for such peptides in WDPHs through a combination of in silico and in vitro analysis.In total,1262 peptide sequences were observed by nano liquid chromatography/tandem mass spectrometry(nano LC-MS/MS)and 4 novel COX-2 inhibitory peptides(AGFP,FPGA,LFPD,and VGFP)were identified.Enzyme kinetic data indicated that AGFP,FPGA,and LFPD displayed mixed-type COX-2 inhibition,whereas VGFP was a non-competitive inhibitor.This is mainly because the peptides form hydrogen bonds and hydrophobic interactions with residues in the COX-2 active site.These results demonstrate that computer analysis combined with in vitro evaluation allows for rapid screening of COX-2 inhibitory peptides in walnut protein dregs. 展开更多
关键词 Walnut dreg proteins Cyclooxygenase-2 inhibitory peptide IDENTIFICATION Virtual screening Molecular docking
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GATA binding protein 2 mediated ankyrin repeat domain containing 26 high expression in myeloid-derived cell lines
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作者 Yang-Zhou Jiang Lan-Yue Hu +11 位作者 Mao-Shan Chen Xiao-Jie Wang Cheng-Ning Tan Pei-Pei Xue Teng Yu Xiao-Yan He Li-Xin Xiang Yan-Ni Xiao Xiao-Liang Li Qian Ran Zhong-Jun Li Li Chen 《World Journal of Stem Cells》 SCIE 2024年第5期538-550,共13页
BACKGROUND Thrombocytopenia 2,an autosomal dominant inherited disease characterized by moderate thrombocytopenia,predisposition to myeloid malignancies and normal platelet size and function,can be caused by 5’-untran... BACKGROUND Thrombocytopenia 2,an autosomal dominant inherited disease characterized by moderate thrombocytopenia,predisposition to myeloid malignancies and normal platelet size and function,can be caused by 5’-untranslated region(UTR)point mutations in ankyrin repeat domain containing 26(ANKRD26).Runt related transcription factor 1(RUNX1)and friend leukemia integration 1(FLI1)have been identified as negative regulators of ANKRD26.However,the positive regulators of ANKRD26 are still unknown.AIM To prove the positive regulatory effect of GATA binding protein 2(GATA2)on ANKRD26 transcription.METHODS Human induced pluripotent stem cells derived from bone marrow(hiPSC-BM)INTRODUCTION Ankyrin repeat domain containing protein 26(ANKRD26)acts as a regulator of adipogenesis and is involved in the regulation of feeding behavior[1-3].The ANKRD26 gene is located on chromosome 10 and shares regions of homology with the primate-specific gene family POTE.According to the Human Protein Atlas database,the ANKRD26 protein is localized to the Golgi apparatus and vesicles,and its expression can be detected in nearly all human tissues[4].Moreover,UniProt annotation revealed that ANKRD26 is localized in the centrosome and contains coiled-coil domains formed by spectrin helices and ankyrin repeats[5,6].The most common disease related to ANKRD26 is thrombocytopenia 2(THC2),which is a rare autosomal dominant inherited disease characterized by lifelong mild-to-moderate thrombocytopenia and mild bleeding[7-9].Caused by the variants in the 5’-untranslated region(UTR)of ANKRD26,THC2 is defined by a decrease in the number of platelets in circulating blood and results in increased bleeding and decreased clotting ability[8,10].Due to the point mutations that occur in the 5’-UTR of ANKRD26,its negative transcription factors(TFs),Runt related transcription factor 1(RUNX1)and friend leukemia integration 1(FLI1),lose their repression effect[11].The persistent expression of ANKRD26 increases the activity of the mitogen activated protein kinase and extracellular signal regulated kinase 1/2 signaling pathways,which are potentially involved in the regulation of thrombopoietin-dependent signaling and further impair proplatelet formation by megakaryocytes(MKs)[11].However,the positive regulators of ANKRD26,which might be associated with THC2 pathology,are still unknown. 展开更多
关键词 Ankyrin repeat domain containing 26 GATA binding protein 2 Thrombocytopenia 2 Transcriptional regulation Myeloid-derived cell lines
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血清网膜素-1和血管生成素样蛋白2水平与心房颤动病人射频消融术后复发的相关性研究
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作者 范彩逢 郭玉冰 齐玉婕 《安徽医药》 CAS 2025年第1期100-104,共5页
目的探究血清网膜素-1(Omentin-1)和血管生成素样蛋白2(ANGPTL2)水平与心房颤动(AF)病人射频消融术后复发的相关性。方法选取2021年1月至2022年1月在郑州大学附属洛阳中心医院实施射频消融术治疗的125例AF病人,依据随访结果分为两组:未... 目的探究血清网膜素-1(Omentin-1)和血管生成素样蛋白2(ANGPTL2)水平与心房颤动(AF)病人射频消融术后复发的相关性。方法选取2021年1月至2022年1月在郑州大学附属洛阳中心医院实施射频消融术治疗的125例AF病人,依据随访结果分为两组:未复发组(n=93)、复发组(n=32);血清Omentin-1、ANGPTL2、白细胞介素(IL)-6、IL-8、肿瘤坏死因子α(TNF-α)水平行酶联免疫吸附测定(ELISA);AF病人术后血清Omentin-1、ANGPTL2水平与各指标相关性采用Pearson分析;多因素logistic分析AF病人术后复发影响因素;采用受试者操作特征曲线(ROC曲线)评价血清Omentin-1、ANGPTL2水平在预测AF病人术后复发中的价值。结果复发组血清IL-6[(3.56±0.73)ng/L]、IL-8[(8.26±2.58)ng/L]、TNF-α[(7.34±2.19)ng/L]、左心房内径(LAD)水平[(37.24±5.23)mm]较未复发组[(1.41±0.26)ng/L、(3.49±1.04)ng/L、(2.67±0.63)ng/L、(31.44±4.16)mm]均显著升高,LVEF水平较未复发组显著降低(P<0.05);与未复发组比较,复发组血清Omentin-1水平显著降低,复发组血清ANGPTL2上水平显著升高(P<0.05);Pearson分析显示,AF病人术前血清Omentin-1水平与炎症因子IL-6、IL-8、TNF-α及LAD均呈负相关,与LVEF呈正相关(P<0.05);血清ANGPTL2水平与炎症因子IL-6、IL-8、TNF-α及LAD水平均呈正相关,与LVEF呈负相关(P<0.05),且Omentin-1、ANGPTL2水平呈负相关;多因素logistic分析显示,高水平Omentin-1为AF病人术后复发的独立保护因素,高水平ANGPTL2、IL-6、IL-8均为AF病人术后复发的独立危险因素(P<0.05);ROC曲线分析显示,血清Omentin-1、ANGPTL2水平预测AF病人术后复发的曲线下面积(AUC)分别为0.88、0.84,两者联合预测的AUC为0.94,效能均优于两者单独预测(Z=1.93、2.10,P<0.05)。结论AF病人术后血清Omentin-1水平显著降低,血清ANGPTL2水平显著升高,与术后复发相关,且两者联合对预测AF术后复发具有一定价值。 展开更多
关键词 心房颤动 射频消融术 网膜素-1 血管生成素样蛋白2 复发
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Neural Wiskott-Aldrich syndrome protein(N-WASP)promotes distant metastasis in pancreatic ductal adenocarcinoma via activation of LOXL2
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作者 HYUNG SUN KIM YUN SUN LEE +5 位作者 SEUNG MYUNG DONG HYO JUNG KIM DA EUN LEE HYEON WOONG KANG MYEONG JIN KIM JOON SEONG PARK 《Oncology Research》 SCIE 2024年第4期615-624,共10页
Pancreatic ductal adenocarcinoma(PDAC)is one of the most aggressive solid malignancies.A specific mechanism of its metastasis has not been established.In this study,we investigated whether Neural Wiskott-Aldrich syndr... Pancreatic ductal adenocarcinoma(PDAC)is one of the most aggressive solid malignancies.A specific mechanism of its metastasis has not been established.In this study,we investigated whether Neural Wiskott-Aldrich syndrome protein(N-WASP)plays a role in distant metastasis of PDAC.We found that N-WASP is markedly expressed in clinical patients with PDAC.Clinical analysis showed a notably more distant metastatic pattern in the N-WASP-high group compared to the N-WASP-low group.N-WASP was noted to be a novel mediator of epithelialmesenchymal transition(EMT)via gene expression profile studies.Knockdown of N-WASP in pancreatic cancer cells significantly inhibited cell invasion,migration,and EMT.We also observed positive association of lysyl oxidase-like 2(LOXL2)and focal adhesion kinase(FAK)with the N-WASP-mediated response,wherein EMT and invadopodia function were modulated.Both N-WASP and LOXL2 depletion significantly reduced the incidence of liver and lung metastatic lesions in orthotopic mouse models of pancreatic cancer.These results elucidate a novel role for N-WASP signaling associated with LOXL2 in EMT and invadopodia function,with respect to regulation of intercellular communication in tumor cells for promoting pancreatic cancer metastasis.These findings may aid in the development of therapeutic strategies against pancreatic cancer. 展开更多
关键词 Pancreatic cancer Neural Wiskott-Aldrich syndrome protein(N-WASP)signaling METASTASIS Epithelial-mesenchymal transition(EMT) Lysyl oxidase-like 2(LOXL2)
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Glucokinase regulatory protein rs780094 polymorphism is associated with type 2 diabetes mellitus, dyslipidemia, non-alcoholic fatty liver disease, and nephropathy
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作者 Ashraf Al Madhoun 《World Journal of Diabetes》 SCIE 2024年第5期814-817,共4页
In this editorial,we comment on the article by Liu et al published in the recent issue of the World Journal of Diabetes(Relationship between GCKR gene rs780094 polymorphism and type 2 diabetes with albuminuria).Type 2... In this editorial,we comment on the article by Liu et al published in the recent issue of the World Journal of Diabetes(Relationship between GCKR gene rs780094 polymorphism and type 2 diabetes with albuminuria).Type 2 diabetes mellitus(T2DM)is a chronic disorder characterized by dysregulated glucose homeostasis.The persistent elevated blood glucose level in T2DM significantly increases the risk of developing severe complications,including cardiovascular disease,re-tinopathy,neuropathy,and nephropathy.T2DM arises from a complex interplay between genetic,epigenetic,and environmental factors.Global genomic studies have identified numerous genetic variations associated with an increased risk of T2DM.Specifically,variations within the glucokinase regulatory protein(GCKR)gene have been linked to heightened susceptibility to T2DM and its associated complications.The clinical trial by Liu et al further elucidates the role of the GCKR rs780094 polymorphism in T2DM and nephropathy development.Their findings demonstrate that individuals carrying the CT or TT genotype at the GCKR rs780094 locus are at a higher risk of developing T2DM with albuminuria compared to those with the CC genotype.These findings highlight the importance of genetic testing and risk assessment in T2DM to develop effective preventive strategies and personalized treatment plans. 展开更多
关键词 Glucokinase regulatory protein rs780094 Type 2 diabetes mellitus DYSLIPIDEMIA Non-alcoholic fatty liver disease NEPHROPATHY
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Targeting neuronal PAS domain protein 2 and KN motif/ankyrin repeat domains 1:Advances in type 2 diabetes therapy
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作者 Chun-Han Cheng Wen-Rui Hao Tzu-Hurng Cheng 《World Journal of Diabetes》 SCIE 2024年第11期2173-2176,共4页
This editorial summarizes the latest literature on the roles of neuronal PAS domain protein 2 and KN motif/ankyrin repeat domain 1 in type 2 diabetes(T2D).We highlight their involvement inβ-cell dysfunction,explore t... This editorial summarizes the latest literature on the roles of neuronal PAS domain protein 2 and KN motif/ankyrin repeat domain 1 in type 2 diabetes(T2D).We highlight their involvement inβ-cell dysfunction,explore their potential as therapeutic targets,and discuss the implications for new treatment strategies.We offer valuable insights into relevant gene regulation and cellular mechanisms relevant for the targeted management of T2D. 展开更多
关键词 Type 2 diabetes Neuronal PAS domain protein 2 KN motif and ankyrin repeat domain 1 β-cell dysfunction Therapeutic target
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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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Inhibiting SHP2 reduces glycolysis, promotes microglial M1 polarization, and alleviates secondary inflammation following spinal cord injury in a mouse model
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作者 Xintian Ding Chun Chen +6 位作者 Heng Zhao Bin Dai Lei Ye Tao Song Shuai Huang Jia Wang Tao You 《Neural Regeneration Research》 SCIE CAS 2025年第3期858-872,共15页
Reducing the secondary inflammatory response, which is partly mediated by microglia, is a key focus in the treatment of spinal cord injury. Src homology 2-containing protein tyrosine phosphatase 2(SHP2), encoded by PT... Reducing the secondary inflammatory response, which is partly mediated by microglia, is a key focus in the treatment of spinal cord injury. Src homology 2-containing protein tyrosine phosphatase 2(SHP2), encoded by PTPN11, is widely expressed in the human body and plays a role in inflammation through various mechanisms. Therefore, SHP2 is considered a potential target for the treatment of inflammation-related diseases. However, its role in secondary inflammation after spinal cord injury remains unclear. In this study, SHP2 was found to be abundantly expressed in microglia at the site of spinal cord injury. Inhibition of SHP2 expression using siRNA and SHP2 inhibitors attenuated the microglial inflammatory response in an in vitro lipopolysaccharide-induced model of inflammation. Notably, after treatment with SHP2 inhibitors, mice with spinal cord injury exhibited significantly improved hind limb locomotor function and reduced residual urine volume in the bladder. Subsequent in vitro experiments showed that, in microglia stimulated with lipopolysaccharide, inhibiting SHP2 expression promoted M2 polarization and inhibited M1 polarization. Finally, a co-culture experiment was conducted to assess the effect of microglia treated with SHP2 inhibitors on neuronal cells. The results demonstrated that inflammatory factors produced by microglia promoted neuronal apoptosis, while inhibiting SHP2 expression mitigated these effects. Collectively, our findings suggest that SHP2 enhances secondary inflammation and neuronal damage subsequent to spinal cord injury by modulating microglial phenotype. Therefore, inhibiting SHP2 alleviates the inflammatory response in mice with spinal cord injury and promotes functional recovery postinjury. 展开更多
关键词 apoptosis GLYCOLYSIS inflammatory response MICROGLIA neurons POLARIZATION spinal cord injury Src homology 2-containing protein tyrosine phosphatase 2
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生存素、人类表皮生长因子受体2、巨囊性病液体蛋白15、Yes相关蛋白表达对乳腺癌患者术后复发转移的预测价值
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作者 卜烨 张晨洁 《陕西医学杂志》 CAS 2025年第1期127-131,共5页
目的:研究生存素(Survivin)、人类表皮生长因子受体2(HER-2)、巨囊性病液体蛋白15(GCDFP15)、Yes相关蛋白(YAP)表达对乳腺癌患者术后复发转移的预测价值。方法:收集156例经乳腺癌改良根治术治疗的乳腺癌患者乳腺癌病理组织及癌旁正常组... 目的:研究生存素(Survivin)、人类表皮生长因子受体2(HER-2)、巨囊性病液体蛋白15(GCDFP15)、Yes相关蛋白(YAP)表达对乳腺癌患者术后复发转移的预测价值。方法:收集156例经乳腺癌改良根治术治疗的乳腺癌患者乳腺癌病理组织及癌旁正常组织,比较乳腺癌患者癌组织和癌旁正常组织Survivin、HER-2、GCDFP15、YAP蛋白表达情况;所有患者术后均随访2年,根据患者术后随访期间复发转移情况将其分为Ⅰ组(51例)和Ⅱ组(105例),统计两组一般资料,比较两组癌组织Survivin、HER-2、GCDFP15、YAP蛋白表达情况,分析乳腺癌患者术后2年内复发转移的影响因素及癌组织Survivin、HER-2、GCDFP15、YAP蛋白单一及联合检测对乳腺癌患者术后2年复发转移的预测价值。结果:癌组织Survivin、HER-2、GCDFP15阳性表达率高于正常组织,YAP阳性表达率低于正常组织(均P<0.05)。Ⅰ组低分化、临床分期Ⅲ期患者占比高于Ⅱ组(均P<0.05)。Ⅰ组癌组织Survivin、HER-2、GCDFP15阳性表达率高于Ⅱ组,YAP阳性表达率低于Ⅱ组(均P<0.05)。分化程度为低分化、临床分期Ⅲ期及Survivin、HER-2、GCDFP15蛋白阳性表达均为乳腺癌患者术后2年内复发转移的独立危险因素(OR=2.092、1.992、2.059、1.815、1.857,均P<0.05);YAP蛋白阳性表达为乳腺癌患者术后2年内复发转移的保护因素(OR=0.489,P<0.05)。癌组织Survivin、HER-2、GCDFP15、YAP蛋白联合预测乳腺癌患者术后2年复发转移的曲线下面积(AUC)值高于四者单独检测(均P<0.05)。结论:乳腺癌的发生与Survivin、HER-2、GCDFP15、YAP蛋白表达情况有关,且患者术后2年复发转移的发生与其分化程度、临床分期及Survivin、HER-2、GCDFP15、YAP蛋白表达情况有关,同时Survivin、HER-2、GCDFP15、YAP蛋白联合可有效提高对乳腺癌患者术后2年复发转移的预测价值。 展开更多
关键词 乳腺癌 生存素 人类表皮生长因子受体2 巨囊性病液体蛋白15 Yes相关蛋白 复发 转移 预测价值
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