Objective Microcystin-leucine-arginine(MC-LR)exposure induces lipid metabolism disorders in the liver.Secreted frizzled-related protein 5(SFRP5)is a natural antagonist of winglesstype MMTV integration site family,memb...Objective Microcystin-leucine-arginine(MC-LR)exposure induces lipid metabolism disorders in the liver.Secreted frizzled-related protein 5(SFRP5)is a natural antagonist of winglesstype MMTV integration site family,member 5A(Wnt5a)and an anti-inflammatory adipocytokine.In this study,we aimed to investigate whether MC-LR can induce lipid metabolism disorders in hepatocytes and whether SFRP5,which has anti-inflammatory effects,can alleviate the effects of hepatic lipid metabolism by inhibiting the Wnt5a/Jun N-terminal kinase(JNK)pathway.Methods We exposed mice to MC-LR in vivo to induce liver lipid metabolism disorders.Subsequently,mouse hepatocytes that overexpressed SFRP5 or did not express SFRP5 were exposed to MC-LR,and the effects of SFRP5 overexpression on inflammation and Wnt5a/JNK activation by MC-LR were observed.Results MC-LR exposure induced liver lipid metabolism disorders in mice and significantly decreased SFRP5 mRNA and protein levels in a concentration-dependent manner.SFRP5 overexpression in AML12cells suppressed MC-LR-induced inflammation.Overexpression of SFRP5 also inhibited Wnt5a and phosphorylation of JNK.Conclusion MC-LR can induce lipid metabolism disorders in mice,and SFRP5 can attenuate lipid metabolism disorders in the mouse liver by inhibiting Wnt5a/JNK signaling.展开更多
目的分析胎儿超声心动图联合母体血清分泌型卷曲相关蛋白5(secreted frizzled-related protein 5,SFRP5)、同型半胱氨酸(homocysteine,Hcy)浓度对先天性心脏病(先心病)胎儿的诊断效能。方法选取2018年7月至2022年2月在十堰市妇幼保健院...目的分析胎儿超声心动图联合母体血清分泌型卷曲相关蛋白5(secreted frizzled-related protein 5,SFRP5)、同型半胱氨酸(homocysteine,Hcy)浓度对先天性心脏病(先心病)胎儿的诊断效能。方法选取2018年7月至2022年2月在十堰市妇幼保健院进行孕中期产前检查的孕妇2756例为研究对象,根据妊娠结局将孕妇分为先心病组(n=110),正常组(n=2646)。孕中期均行胎儿超声心动图检查。酶联免疫吸附法试验(enzymelinked immunosorbent assay,ELISA)检测母体血清SFRP5浓度,全自动生化分析仪检测Hcy浓度。Pearson法分析先心病组母体血清SFRP5浓度与Hcy浓度的相关性。以妊娠结局为“金标准”,分析胎儿超声心动图、母体血清SFRP5、Hcy浓度及三者联合对先心病胎儿的诊断效能。结果先心病组母体血清SFRP5浓度明显低于正常组(P<0.05),Hcy浓度明显高于正常组(P<0.05),两者浓度呈负相关(r=-0.575,P<0.05)。胎儿超声心动图、母体血清SFRP5、Hcy浓度诊断先天性心脏病胎儿的灵敏度分别为63.64%、64.55%、65.45%,特异度分别为81.52%、81.07%、80.35%,准确度分别为80.81%、80.41%、79.75%。胎儿超声心动图、母体血清SFRP5、Hcy浓度联合诊断先心病胎儿的灵敏度、准确度分别为96.36%、80.91%,均高于三者单独检测,且三者联合诊断的灵敏度显著高于三者单独诊断(P<0.05)。结论胎儿超声心动图联合母体血清SFRP5、Hcy浓度对先心病胎儿具有较高的诊断价值,三者联合诊断可提高灵敏度。展开更多
目的分析孕中期妊娠期糖尿病(GDM)患者血清α清蛋白(Afamin)和分泌型卷曲相关蛋白5(SFRP5)水平及临床价值。方法选取2019年8月至2021年8月河北省秦皇岛市海港医院120例定期产检并分娩的孕妇为研究对象,其中GDM孕妇50例为GDM组,非GDM孕...目的分析孕中期妊娠期糖尿病(GDM)患者血清α清蛋白(Afamin)和分泌型卷曲相关蛋白5(SFRP5)水平及临床价值。方法选取2019年8月至2021年8月河北省秦皇岛市海港医院120例定期产检并分娩的孕妇为研究对象,其中GDM孕妇50例为GDM组,非GDM孕妇70例为对照组。采用酶联免疫吸附试验(ELISA)检测两组血清Afamin和SFRP5水平;采用口服葡萄糖耐量试验(OGTT)检测OGTT 1 h血糖(1 h PG)、OGTT 2 h血糖(2 h PG);检测空腹血糖(FPG)、糖化血红蛋白(HbA1c)及空腹胰岛素(FINS)水平;分析Afamin、SFRP5与糖代谢指标之间的相关性;采用受试者工作特征(ROC)曲线评估Afamin、SFRP5单独及联合检测对GDM的诊断价值;分析不同Afamin、SFRP5水平孕妇不良妊娠结局发生情况。结果GDM组FPG、1 h PG、2 h PG、HbA1c和FINS水平明显高于对照组,差异有统计学意义(P<0.05);GDM组Afamin水平明显高于对照组,SFRP5水平明显低于对照组,差异有统计学意义(P<0.05);Afamin水平与FPG、1 h PG、2 h PG、HbA1c和FINS水平呈正相关(P<0.05);SFRP5水平与FPG、1 h PG、2 h PG、HbA1c和FINS水平呈负相关(P<0.05);ROC曲线分析结果显示,血清Afamin和SFRP5单独及联合检测诊断GDM的曲线下面积(AUC)分别为0.747、0.642、0.872,且联合检测的灵敏度为89.3%,特异度为77.9%,联合检测的AUC明显大于单独检测的AUC,差异有统计学意义(P<0.05)。以所有孕妇的Afamin、SFRP5水平均值为界,分为高Afamin组、低Afamin组,以及高SFRP5组、低SFRP5组,高Afamin组母婴不良妊娠结局发生率高于低Af amin组,低SFRP5组母婴不良妊娠结局发生率高于高SFRP5组,差异有统计学意义(P<0.05)。结论Afamin和SFRP5作为诊断GDM的生物标志物具有良好的效能,在临床上可以预测GDM的发展趋势和不良妊娠结局的风险。展开更多
报告一例常染色体隐性遗传发病的骨质疏松症-假性胶质瘤综合征。先证者女性,23岁,父母非近亲结婚,出生后发现双目失明,婴儿期因发现右眼视网膜母细胞瘤行右眼球摘除术,9岁开始反复发生轻微外力骨折,诊断为成骨不全。查体发现脊柱侧凸畸...报告一例常染色体隐性遗传发病的骨质疏松症-假性胶质瘤综合征。先证者女性,23岁,父母非近亲结婚,出生后发现双目失明,婴儿期因发现右眼视网膜母细胞瘤行右眼球摘除术,9岁开始反复发生轻微外力骨折,诊断为成骨不全。查体发现脊柱侧凸畸形、胸廓畸形、双上肢肘外翻、四肢关节韧带松弛。双能X线吸收检测仪(dual energy X-ray absorptiometry,DXA)骨密度明显低于同龄人,腰椎1-4骨密度Z值-5,左髋骨密度Z值-1.8。X线摄片示全身骨小梁稀疏。Sanger测序显示低密度脂蛋白受体相关蛋白-5(lowdensity lipoprotein receptor-related protein 5,LRP5)基因的6号外显子和23号外显子发生复合杂合突变,导致p.Pro382Leu+p.Cys1611LeufsX33。本文通过文献复习对该病的临床表现和诊疗特点进行讨论及总结,以期帮助临床医生提高对这一疾病的认识。展开更多
基金supported by the Natural Science Research Project of colleges and Universities in Anhui Province[2022AH052336]High Level Talent Research Initiation Fund Of Anhui Medical College[2023RC004]。
文摘Objective Microcystin-leucine-arginine(MC-LR)exposure induces lipid metabolism disorders in the liver.Secreted frizzled-related protein 5(SFRP5)is a natural antagonist of winglesstype MMTV integration site family,member 5A(Wnt5a)and an anti-inflammatory adipocytokine.In this study,we aimed to investigate whether MC-LR can induce lipid metabolism disorders in hepatocytes and whether SFRP5,which has anti-inflammatory effects,can alleviate the effects of hepatic lipid metabolism by inhibiting the Wnt5a/Jun N-terminal kinase(JNK)pathway.Methods We exposed mice to MC-LR in vivo to induce liver lipid metabolism disorders.Subsequently,mouse hepatocytes that overexpressed SFRP5 or did not express SFRP5 were exposed to MC-LR,and the effects of SFRP5 overexpression on inflammation and Wnt5a/JNK activation by MC-LR were observed.Results MC-LR exposure induced liver lipid metabolism disorders in mice and significantly decreased SFRP5 mRNA and protein levels in a concentration-dependent manner.SFRP5 overexpression in AML12cells suppressed MC-LR-induced inflammation.Overexpression of SFRP5 also inhibited Wnt5a and phosphorylation of JNK.Conclusion MC-LR can induce lipid metabolism disorders in mice,and SFRP5 can attenuate lipid metabolism disorders in the mouse liver by inhibiting Wnt5a/JNK signaling.
文摘目的分析孕中期妊娠期糖尿病(GDM)患者血清α清蛋白(Afamin)和分泌型卷曲相关蛋白5(SFRP5)水平及临床价值。方法选取2019年8月至2021年8月河北省秦皇岛市海港医院120例定期产检并分娩的孕妇为研究对象,其中GDM孕妇50例为GDM组,非GDM孕妇70例为对照组。采用酶联免疫吸附试验(ELISA)检测两组血清Afamin和SFRP5水平;采用口服葡萄糖耐量试验(OGTT)检测OGTT 1 h血糖(1 h PG)、OGTT 2 h血糖(2 h PG);检测空腹血糖(FPG)、糖化血红蛋白(HbA1c)及空腹胰岛素(FINS)水平;分析Afamin、SFRP5与糖代谢指标之间的相关性;采用受试者工作特征(ROC)曲线评估Afamin、SFRP5单独及联合检测对GDM的诊断价值;分析不同Afamin、SFRP5水平孕妇不良妊娠结局发生情况。结果GDM组FPG、1 h PG、2 h PG、HbA1c和FINS水平明显高于对照组,差异有统计学意义(P<0.05);GDM组Afamin水平明显高于对照组,SFRP5水平明显低于对照组,差异有统计学意义(P<0.05);Afamin水平与FPG、1 h PG、2 h PG、HbA1c和FINS水平呈正相关(P<0.05);SFRP5水平与FPG、1 h PG、2 h PG、HbA1c和FINS水平呈负相关(P<0.05);ROC曲线分析结果显示,血清Afamin和SFRP5单独及联合检测诊断GDM的曲线下面积(AUC)分别为0.747、0.642、0.872,且联合检测的灵敏度为89.3%,特异度为77.9%,联合检测的AUC明显大于单独检测的AUC,差异有统计学意义(P<0.05)。以所有孕妇的Afamin、SFRP5水平均值为界,分为高Afamin组、低Afamin组,以及高SFRP5组、低SFRP5组,高Afamin组母婴不良妊娠结局发生率高于低Af amin组,低SFRP5组母婴不良妊娠结局发生率高于高SFRP5组,差异有统计学意义(P<0.05)。结论Afamin和SFRP5作为诊断GDM的生物标志物具有良好的效能,在临床上可以预测GDM的发展趋势和不良妊娠结局的风险。
文摘报告一例常染色体隐性遗传发病的骨质疏松症-假性胶质瘤综合征。先证者女性,23岁,父母非近亲结婚,出生后发现双目失明,婴儿期因发现右眼视网膜母细胞瘤行右眼球摘除术,9岁开始反复发生轻微外力骨折,诊断为成骨不全。查体发现脊柱侧凸畸形、胸廓畸形、双上肢肘外翻、四肢关节韧带松弛。双能X线吸收检测仪(dual energy X-ray absorptiometry,DXA)骨密度明显低于同龄人,腰椎1-4骨密度Z值-5,左髋骨密度Z值-1.8。X线摄片示全身骨小梁稀疏。Sanger测序显示低密度脂蛋白受体相关蛋白-5(lowdensity lipoprotein receptor-related protein 5,LRP5)基因的6号外显子和23号外显子发生复合杂合突变,导致p.Pro382Leu+p.Cys1611LeufsX33。本文通过文献复习对该病的临床表现和诊疗特点进行讨论及总结,以期帮助临床医生提高对这一疾病的认识。