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Diabetes mellitus in patients with type 1 autoimmune pancreatitis at diagnosis and after corticosteroid therapy 被引量:1
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作者 Mei-Zi Li Tao Guo +5 位作者 Yun-Lu Feng Sheng-Yu Zhang Xiao-Yin Bai Xi Wu Kai Xu Ai-Ming Yang 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2024年第4期393-398,共6页
Background:A high prevalence of diabetes mellitus(DM)coexisting with autoimmune pancreatitis(AIP)is observed.However,evidence on the circumstances under which corticosteroid therapy(CST)for AIP improves or worsens DM ... Background:A high prevalence of diabetes mellitus(DM)coexisting with autoimmune pancreatitis(AIP)is observed.However,evidence on the circumstances under which corticosteroid therapy(CST)for AIP improves or worsens DM is scarce.This study aimed to demonstrate and identify predictors of DM control under the influence of CST.Methods:Patients diagnosed with type 1 AIP were enrolled from a prospectively maintained cohort and were classified into three groups according to the chronology in which AIP and DM were diagnosed:pre-existing DM(pDM),concurrent DM(cDM),and non-DM(nDM).The responses of DM to CST were assessed when corticosteroid was ceased or tapered to a maintenance dose and classified as‘improvement’and‘non-improvement’(including‘no change’and‘exacerbation’).Results:Among 101 patients with type 1 AIP,52(51.5%)patients were complicated with DM at the time of AIP diagnosis,with 36 patients in the cDM group and 16 patients in the pDM group.The incidences of diffuse pancreatic swelling(72.2%)and pancreatic body/tail involvement(91.7%)were significantly higher in the cDM group than in both the pDM and nDM groups.Of the 52 patients with DM,CST was administered in 48 cases.Multivariate logistic analysis identified that elevated serum gamma-glutamyl transferase(GGT)level at AIP diagnosis[odds ratio(OR)=0.032,95%confidence interval(CI):0.003-0.412,P=0.008]and pancreatic atrophy after CST(OR=0.027,95%CI:0.003-0.295,P=0.003)were negatively associated with DM control improvement.Conclusions:Patients with diffuse pancreatic swelling and pancreatic body/tail involvement in pancreatitis tended to be complicated with cDM at AIP diagnosis.CST exerted a beneficial effect on the clinical course of DM in nearly half of the AIP patients complicated with DM at diagnosis,particularly in those without elevated serum GGT levels at diagnosis and who did not experience pancreatic atrophy after CST. 展开更多
关键词 type 1 autoimmune pancreatitis Diabetes mellitus Corticosteroid therapy Predictive factor Pancreatic atrophy
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右美托咪定通过调控白细胞介素-17及转化生长因子-β1/Smad蛋白3信号通路对脂多糖诱导Ⅱ型肺泡上皮细胞损伤的影响
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作者 易金容 毕生龙 +2 位作者 丁称生 饶运帷 林海 《中国当代医药》 CAS 2024年第28期16-22,38,共8页
目的探讨右美托咪定介导白细胞介素(IL)-17对脂多糖(LPS)诱导的人Ⅱ型肺泡上皮A549细胞(以下简称“A549细胞”)炎症、增殖、迁移、上皮间质转化及转化生长因子-β1(TGF-β1)/Smad蛋白3(Smad3)信号通路的调控作用。方法体外培养A549细胞... 目的探讨右美托咪定介导白细胞介素(IL)-17对脂多糖(LPS)诱导的人Ⅱ型肺泡上皮A549细胞(以下简称“A549细胞”)炎症、增殖、迁移、上皮间质转化及转化生长因子-β1(TGF-β1)/Smad蛋白3(Smad3)信号通路的调控作用。方法体外培养A549细胞,将其分为对照组(不做干预)、LPS组(10.00μg/ml LPS)和实验组(10.00μg/ml LPS+1.25、2.50、5.00、10.00μg/ml右美托咪定),分别采用CCK-8试剂盒和反转录-聚合酶链反应(RT-qPCR)法测定细胞活力和IL-17 mRNA表达水平以筛选右美托咪定最适实验浓度;随后将细胞分为对照组、LPS组、IL-17组、右美托咪定组和IL-17+右美托咪定组,干预24 h。酶联免疫吸附试验(ELISA)检测炎症因子IL-17、IL-8和IL-6的表达水平;5-乙炔基-2'脱氧尿嘧啶核苷(EdU)试剂盒用来检测细胞增殖率;划痕实验用来检测细胞迁移率;蛋白免疫印迹(WB)法测定肺泡上皮间质转化(EMT)相关蛋白、TGF-β1/Smad3通路相关蛋白及IL-17蛋白表达水平。结果右美托咪定逆转了LPS对A549细胞活力的抑制作用和IL-17 mRNA表达水平的促进作用,且10.00μg/ml浓度的右美托咪定组的效果最好,因此选择10.00μg/ml右美托咪定用于后续实验。LPS组细胞中IL-17、IL-8、IL-6表达水平、细胞迁移率、N-钙黏蛋白、波形蛋白、纤维粘连蛋白(FN)、Smad3的磷酸化(p-Smad3)/Smad3、TGF-β1和IL-17蛋白表达水平高于对照组,差异有统计学意义(P<0.05);LPS组细胞增殖率、E-钙黏蛋白和Smad7蛋白表达水平低于对照组,差异有统计学意义(P<0.05)。IL-17+右美托咪定组IL-17、IL-8、IL-6表达水平、细胞迁移率、N-钙黏蛋白、波形蛋白、FN、p-Smad3/Smad3、TGF-β1和IL-17蛋白表达水平低于LPS组,差异有统计学意义(P<0.05);IL-17+右美托咪定组细胞增殖率、E-钙黏蛋白和Smad7蛋白表达水平高于LPS组,差异有统计学意义(P<0.05)。结论右美托咪定通过抑制IL-17的分泌恢复LPS诱导的人Ⅱ型肺泡上皮细胞损伤,促进LPS诱导的人Ⅱ型肺泡上皮细胞增殖并抑制其迁移和EMT进程,其作用机制与抑制TGF-β1/Smad3通路的信号转导有关。 展开更多
关键词 型肺泡上皮样细胞 右美托咪定 白细胞介素-17 转化生长因子-β1/Smad蛋白3信号通路 脂多糖 增殖 炎症 间质转化
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Effect of nuclear factor-κB and angiotensin Ⅱ receptor type 1 on the pathogenesis of rat non-alcoholic fatty liver disease 被引量:3
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作者 Dao-Yu Tan Hai-Yan Shi +2 位作者 Chang-Ping Li Xiao-Ling Zhong Ming Kang 《World Journal of Gastroenterology》 SCIE CAS 2015年第19期5877-5883,共7页
AIM: To investigate the roles of nuclear factor(NF)-κB and angiotensin Ⅱ receptor type 1(AT1R) in the pathogenesis of non-alcoholic fatty liver disease(NAFLD).METHODS: Forty-two healthy adult male SpragueDawley rats... AIM: To investigate the roles of nuclear factor(NF)-κB and angiotensin Ⅱ receptor type 1(AT1R) in the pathogenesis of non-alcoholic fatty liver disease(NAFLD).METHODS: Forty-two healthy adult male SpragueDawley rats were randomly divided into three groups:the control group(normal diet), the model group,and the intervention group(10 wk of a high-fat diet feeding, followed by an intraperitoneal injection of PDTC); 6 rats in each group were sacrificed at 6, 10,and 14 wk. After sacrifice, liver tissue was taken,paraffin sections of liver tissue specimens were prepared, hematoxylin and eosin(HE) staining was performed, and pathological changes in liver tissue(i.e., liver fibrosis) were observed by light microscopy.NF-κB expression in liver tissue was detected by immunohistochemistry, and the expression of AT1 R in the liver tissue was detected by reverse transcriptionpolymerase chain reaction(RT-PCR). The data are expressed as mean ± SD. A two-sample t test was used to compare the control group and the model group at different time points, paired t tests were used to compare the differences between the intervention group and the model group, and analysis of variance was used to compare the model group with the control group. Homogeneity of variance was analyzed with single factor analysis of variance. H variance analysis was used to compare the variance. P < 0.05 wasconsidered statistically significant.RESULTS: The NAFLD model was successful after 6wk and 10 wk. Liver fibrosis was found in four rats in the model group, but in only one rat in the intervention group at 14 wk. Liver steatosis, inflammation, and fibrosis were gradually increased throughout the model. In the intervention group, the body mass,rat liver index, serum lipid, and transaminase levels were not increased compared to the model group.In the model group, the degree of liver steatosis was increased at 6, 10, and 14 wk, and was significantly higher than in the control group(P < 0.01). In the model group, different degrees of liver cell necrosis were visible and small leaves, punctated inflammation,focal necrosis, and obvious ballooning degeneration were observed. Partial necrosis and confluent necrosis were observed. In the model group, liver inflammatory activity scores at 6, 10, and 14 wk were higher than in the control group(P < 0.01). Active inflammation in liver tissue in the intervention group was lower than in the model group(P < 0.05). HE staining showed liver fibrosis only at 14 wk in 4/6 rats in the model group and in 1/6 rats in the intervention group. NF-κB positive cells were stained yellow or ensemble yellow,and NF-κB was localized in the cytoplasm and/or nucleus. The model group showed NF-κB activation at6, 10, and 14 wk in liver cells; at the same time points,there were statistically significant differences in the control group(P < 0.01). Over time, NF-κB expression increased; this was statistically lower(P < 0.05) at14 weeks in the intervention group compared to the model group, but significantly increased(P < 0.05)compared with the control group; RT-PCR showed that AT1 R mRNA expression increased gradually in the model group; at 14 wk, the expression was significantly different compared with expression at 10 weeks as well as at 6 weeks(P < 0.05). In the model group, AT1 R mRNA expression was significantly higher than at the same time point in the control group(P <0.01).CONCLUSION: With increasing severity of NAFLD,NF-κB activity is enhanced, and the inhibition of NF-κB activity may reduce AT1 R mRNA expression in NAFLD. 展开更多
关键词 Non-alcoholic FATTY liver disease Nuclearfactor-κB ANGIOTENSIN RECEPTOR type 1 Rats Liverfibrosis
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儿童青少年1型糖尿病患儿发生酮症酸中毒的危险因素分析及预测模型的建立 被引量:1
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作者 王晓佳 龚爱红 +1 位作者 齐晟宏 刘兰 《中国当代儿科杂志》 CSCD 北大核心 2024年第1期62-66,共5页
目的研究儿童青少年1型糖尿病(type 1 diabetes mellitus,T1DM)发生糖尿病酮症酸中毒(diabetic ketoacidosis,DKA)的危险因素,并建立DKA风险预测模型,以期降低该类患儿DKA的发生率,提高患儿生存质量。方法回顾性选择2018年1月—2021年1... 目的研究儿童青少年1型糖尿病(type 1 diabetes mellitus,T1DM)发生糖尿病酮症酸中毒(diabetic ketoacidosis,DKA)的危险因素,并建立DKA风险预测模型,以期降低该类患儿DKA的发生率,提高患儿生存质量。方法回顾性选择2018年1月—2021年12月宁夏医科大学总医院收治的217例T1DM患儿,其中169例发生DKA患儿为DKA组,48例未发生DKA患儿为非DKA组。分析T1DM患儿发生DKA的危险因素,并建立预测T1DM患儿发生DKA风险的列线图模型。结果217例T1DM患儿中DKA发生率为77.9%(169/217)。多因素logistic回归分析显示,T1DM患儿入院随机血糖高、糖化血红蛋白高(hemoglobin A1c,HbA1c)、血酮高、甘油三酯高与发生DKA密切相关(分别OR=1.156、3.203×10^(15)、20.131、9.519,P<0.05)。列线图预测模型C-统计量为0.95,列线图模型预测T1DM患儿发生DKA的风险与实际发生DKA的风险平均绝对误差为0.004,说明模型整体预测能力较好。结论高入院随机血糖、高HbA1c、高血酮、高甘油三酯与儿童青少年T1DM发生DKA密切相关,应制定针对性干预措施,以降低T1DM发生DKA的风险。 展开更多
关键词 1型糖尿病 酮症酸中毒 危险因素 列线图 儿童 青少年
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NONHSAT248596.1内源性竞争miR-146a-5p调控骨关节炎软骨退变的机制
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作者 杨光 李彦林 +6 位作者 王国梁 宁梓文 杨腾云 何任杰 熊波涵 杨兵 李黎 《中国组织工程研究》 CAS 北大核心 2024年第16期2512-2518,共7页
背景:目前已有针对lncRNA\miRNA\mRNA的共表达网络对骨关节炎发生发展调控机制的研究,课题组前期研究已通过数据库筛选出符合条件的NONHSAT248596.1和miR-146a-5p,尚缺乏体内实验来验证上述调控机制。目的:探究NONHSAT248596.1在基质细... 背景:目前已有针对lncRNA\miRNA\mRNA的共表达网络对骨关节炎发生发展调控机制的研究,课题组前期研究已通过数据库筛选出符合条件的NONHSAT248596.1和miR-146a-5p,尚缺乏体内实验来验证上述调控机制。目的:探究NONHSAT248596.1在基质细胞衍生因子1/4型趋化因子受体轴介导体内骨关节炎软骨退变进程中对miR-146a-5p发挥的竞争性内源性RNA调控作用。方法:取36只新西兰兔,通过向右侧后肢膝关节注射基质细胞衍生因子1溶液建立骨关节炎模型,采用随机数字表法分4组,lncRNA组、miRNA组、ceRNA组、对照组分别向造模膝关节内注射NONHSAT248596.1过表达的慢病毒载体、miR-146a-5p过表达的慢病毒载体、miR-146a-5p+NONHSAT248596.1过表达的慢病毒载体及空慢病毒载体。造模第4,8,12周,取膝关节软骨组织和软骨下骨组织进行相关检测。结果与结论:①苏木精-伊红与番红O固绿染色显示,4组软骨组织都有不同程度的退变表现,造模第4周时,lncRNA组软骨组织中的软骨细胞肿胀、细胞极性消失,细胞外基质破坏,出现表层糜烂、裂缝形成和软骨组织局部或全层缺失,并随时间延长软骨损伤程度逐渐加重,4组中miRNA组关节软骨炎症进展最缓慢;②qRT-PCR检测显示,相同时间点下,lncRNA组软骨组织中NONHSAT248596.1、4型趋化因子受体、基质金属蛋白酶3,9及13的mRNA表达量高于其他3组(P<0.05),miR-146a-5p、聚集蛋白聚糖及Ⅱ型胶原的mRNA表达量低于其他3组(P<0.05);造模后第8,12周,miRNA组软骨组织中的NONHSAT248596.1、4型趋化因子受体、基质金属蛋白酶3,9及13的mRNA表达量低于ceRNA组、对照组(P<0.05),miR-146a-5p、聚集蛋白聚糖及Ⅱ型胶原的mRNA表达量高于ceRNA组、对照组(P<0.05);③Western Blot检测显示,相同时间点下,lncRNA组软骨组织中的聚集蛋白聚糖及Ⅱ型胶原蛋白表达量始终低于其他3组(P<0.05);miRNA组造模后第8,12周软骨组织中的聚集蛋白聚糖及Ⅱ型胶原蛋白表达量高于ceRNA组、对照组(P<0.05);④结果表明,miR-146a-5p作为NONHSAT248596.1的作用靶点会受到其竞争性内源性RNA的作用造成活性被抑制,NONHSAT248596.1作用于miR-146a-5p后调控基质细胞衍生因子1/4型趋化因子受体轴,影响骨关节炎软骨组织中基质金属蛋白、Ⅱ型胶原、聚集蛋白聚糖的表达,造成细胞外基质的降解及蛋白多糖的丢失。 展开更多
关键词 骨关节炎 lncRNA(NONHSAT248596.1) miR-146a-5p 基质细胞衍生因子1(SDF-1) 4型趋化因子受体(CXCR4) 软骨退变
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儿童青少年1型糖尿病患者生活质量现状及影响因素分析
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作者 欧丽娜 陆春斌 +3 位作者 罗桂情 季红运 黄翠颖 黄秋雅 《右江医学》 2024年第7期599-606,共8页
目的了解儿童青少年1型糖尿病(T1DM)患者的生活质量现状及影响因素,为采取有效干预措施提高患者的生活质量提供参考依据。方法选取2020年1月—2023年12月在百色市某三甲医院内分泌科住院治疗的70例儿童青少年T1DM患者为研究对象,采用糖... 目的了解儿童青少年1型糖尿病(T1DM)患者的生活质量现状及影响因素,为采取有效干预措施提高患者的生活质量提供参考依据。方法选取2020年1月—2023年12月在百色市某三甲医院内分泌科住院治疗的70例儿童青少年T1DM患者为研究对象,采用糖尿病患者生活质量特异性量表评估患者的生活质量,采用单因素和多因素分析影响患者生活质量的因素。结果70例儿童青少年T1DM患者的生活质量得分为(79.19±12.29)分,处于中等水平。多元线性回归分析结果显示,不同居住地、是否为独生子女、胰岛素给药方式、疾病病耻感、积极面对及屈服面对方式是儿童青少年T1DM患者生活质量的独立影响因素(均P<0.05)。结论儿童青少年T1DM患者的生活质量处于中等水平,医护人员可针对影响患者生活质量的因素采取积极的干预措施,从而提高患者的生活质量。 展开更多
关键词 1型糖尿病 生活质量 儿童 青少年 影响因素
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血清sTWEAK、sLOX-1与H型高血压合并HFpEF患者颈动脉粥样硬化的关系
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作者 姜金钟 郭华 +2 位作者 苗维 田守森 田雯艳 《广东医学》 CAS 2024年第10期1226-1230,共5页
目的研究血清可溶性肿瘤坏死因子样凋亡弱诱导因子(sTWEAK)、可溶性凝集素样氧化型低密度脂蛋白受体-1(sLOX-1)与H型高血压合并射血分数保留的心力衰竭(HFpEF)患者颈动脉粥样硬化的关系。方法选取2021年2月至2023年3月沧州中西医结合医... 目的研究血清可溶性肿瘤坏死因子样凋亡弱诱导因子(sTWEAK)、可溶性凝集素样氧化型低密度脂蛋白受体-1(sLOX-1)与H型高血压合并射血分数保留的心力衰竭(HFpEF)患者颈动脉粥样硬化的关系。方法选取2021年2月至2023年3月沧州中西医结合医院收治的161例H型高血压合并HFpEF患者,按是否发生颈动脉粥样硬化分为硬化组与非硬化组。同期选取80例于我院体检的健康的志愿者作为对照组。收集受试者的临床资料,采用酶联免疫吸附法检测血清sTWEAK、sLOX-1水平,比较H型高血压合并HFpEF患者与对照组血清sTWEAK、sLOX-1水平,采用多因素logistic回归分析患者发生颈动脉粥样硬化的影响因素,受试者工作特征(ROC)曲线分析血清sTWEAK、sLOX-1对患者发生颈动脉粥样硬化的预测价值。结果161例患者中65例发生颈动脉粥样硬化,发生率为40.37%(65/161),未发生颈动脉粥样硬化者96例。两组在年龄、吸烟、血脂四项等方面比较,差异有统计学意义(P<0.05)。硬化组与非硬化组血清sTWEAK水平低于对照组,sLOX-1水平高于对照组(P<0.05);且硬化组sTWEAK水平低于非硬化组,sLOX-1水平高于非硬化组(P<0.05)。多因素logistic回归分析显示,HDL-C、sTWEAK、年龄、LDL-C、sLOX-1水平是患者发生颈动脉粥样硬化的影响因素(P<0.05)。ROC曲线显示,血清sTWEAK、sLOX-1联合检测对发生颈动脉粥样硬化的预测曲线下面积(AUC)为0.842,预测效能高于两指标单独检测。结论H型高血压合并HFpEF患者的血清sTWEAK水平下降、sLOX-1水平上升,与颈动脉粥样硬化发生有关,两者联合检测对颈动脉粥样硬化的发生具有一定预测价值。 展开更多
关键词 H型高血压 射血分数保留心力衰竭 颈动脉粥样硬化 可溶性肿瘤坏死因子样凋亡弱诱导因子 可溶性凝集素样氧化型低密度脂蛋白受体-1
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基于NGF/PI3K/TRPV1信号通路探究参苓白术散对腹泻型肠易激综合征小鼠的干预机制
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作者 朱卫 翦闽涛 曾婷婷 《现代消化及介入诊疗》 2024年第5期547-551,共5页
目的研究基于神经生长因子/磷脂酰肌醇3-激酶/瞬时受体电位香草酸受体1(NGF/PI3K/TRPV1)信号通路探究参苓白术散对腹泻型肠易激综合征小鼠的干预机制。方法选取40只SPF级SD雄性大鼠,其中空白组10只,模型组13只、研究1组7只、研究2组9只... 目的研究基于神经生长因子/磷脂酰肌醇3-激酶/瞬时受体电位香草酸受体1(NGF/PI3K/TRPV1)信号通路探究参苓白术散对腹泻型肠易激综合征小鼠的干预机制。方法选取40只SPF级SD雄性大鼠,其中空白组10只,模型组13只、研究1组7只、研究2组9只。对照组、模型组只进行生理盐水灌胃,不做其他任何处理。研究1组给予匹维溴铵片20mg/kg水溶液进行灌胃,研究2组给予参苓白术散4g/kg进行灌胃。评估Bristol评分情况;分析脾脏系数、胸腺系数情况;检测IgA、IgG、IgM、IL-1β、IL-6、TNF-α表达水平及NGF/PI3K/TRPV1蛋白表达情况。结果相比于空白组,模型组、研究1组、研究2组Bristol评分、脾脏系数、胸腺系数、IgA、IgG、IgM、IL-1β、IL-6、TNF-α水平及NGF、PI3K、TRPV1蛋白表达均上升(P<0.05);相比于模型组、研究1组,研究2组Bristol评分、脾脏系数、胸腺系数、IgA、IgG、IgM、IL-1β、IL-6、TNF-α水平及NGF、PI3K、TRPV1蛋白表达均下降(P<0.05)。结论参苓白术散抑制NGF/PI3K/TRPV1通路,改善大鼠胃肠功能及大便状态,减轻炎症反应,提高免疫功能稳态情况,干预效果显著。 展开更多
关键词 参苓白术散 神经生长因子/磷脂酰肌醇3-激酶/瞬时受体电位香草酸受体1 腹泻型肠易激综合征 炎症反应
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RUNX1在AngⅡ诱导心肌肥厚中的作用及机制 被引量:1
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作者 丁立群 王玉玖 +4 位作者 杨丽娟 沈嘉祺 王傲 邹明锐 刘宝辉 《滨州医学院学报》 2023年第6期401-405,共5页
目的探讨Runt相关转录因子1(RUNX1)对血管紧张素Ⅱ(AngⅡ)诱导的心肌肥厚的作用及机制。方法将H9C2心肌细胞分为Control组、L-AngⅡ组、M-AngⅡ组、H-AngⅡ组,验证AngⅡ诱导心肌肥厚模型并检测不同AngⅡ浓度下RUNX1表达情况。将H9C2心... 目的探讨Runt相关转录因子1(RUNX1)对血管紧张素Ⅱ(AngⅡ)诱导的心肌肥厚的作用及机制。方法将H9C2心肌细胞分为Control组、L-AngⅡ组、M-AngⅡ组、H-AngⅡ组,验证AngⅡ诱导心肌肥厚模型并检测不同AngⅡ浓度下RUNX1表达情况。将H9C2心肌细胞分为慢病毒转染无义序列(NS)组、AngⅡ+NS组、shRUNX1组、AngⅡ+shRUNX1组检测RUNX1对心肌肥厚的影响。采用Western blot法检测各组细胞RUNX1、SERCA2a表达量的变化,采用qRT-PCR法检测各组细胞心肌肥厚相关指标,采用免疫荧光法检测心肌细胞面积。结果在H9C2中加入AngⅡ48 h后,与对照组相比,AngⅡ处理后细胞中RUNX1蛋白表达量明显上调,并呈剂量依赖关系。转染shRUNX172 h后进行AngⅡ处理,与AngⅡ+NS组相比,AngⅡ+shRUNX1组BNP mRNA、RUNX1蛋白表达量明显降低,心肌细胞面积显著减小;而SERCA2a蛋白表达量明显上调。结论RUNX1参与AngⅡ诱导的心肌肥厚的病理过程,其作用机制可能与抑制SERCA2a相关。 展开更多
关键词 心肌肥厚 血管紧张素 Runt相关转录因子1 SERCA2A
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Interference of Y-27632 on the signal transduction of transforming growth factor beta type 1 in ocular Tenon capsule fibroblasts 被引量:7
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作者 Xiao-Hui Zhang, Jian-Ming Wang 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2012年第5期576-581,共6页
AIM: To investigate the interfering effect of Y-27632, a ROCK-I selective inhibitor, on the signal transduction pathway of transforming growth factor-beta 1 (TGF-beta 1) in ocular Tenon capsule fibroblasts (OTFS) in v... AIM: To investigate the interfering effect of Y-27632, a ROCK-I selective inhibitor, on the signal transduction pathway of transforming growth factor-beta 1 (TGF-beta 1) in ocular Tenon capsule fibroblasts (OTFS) in vitro. METHODS: After OTFS from passages 4 to 6 47 vitro were induced by TGF-beta 1 and then treated by Y-27632, the changes of the OTFS cell cycles were analyzed via flow cytometry, and the proteins expression of the alpha -smooth muscular actin (alpha -SMA), connective tissue growth factor (CTGF), collagen I were calculated by Western blot. After OTFS treated by the different concentrations of Y-27632, the expression levels of the alpha -SMA, CTGF and collagen I mRNA were assayed by RT-PCR. RESULTS: Y-27632 had no markedly effect on the OTFS cell cycles. After treated by TGF-beta 1, OTFS in G1 period significantly increased. The cell cycles distribution by both TGF-beta 1 and Y-27632 had no remarkable difference from that in control group. Y-27632 significantly inhibited the proteins expressions of both alpha -SMA and CTGF, while to some extent inhibited that of collagen I. TGF-beta 1 significantly promoted the proteins expressions of alpha -SMA, CTGF and collagen I. After OTFS treated by both TGF-beta 1 and Y-27632, of alpha -SMA, the protein expression was similar with that in control group (P=0.066>0.05), but the protein expression of CTGF or collagen I, respectively, was significantly different from that in control group (P=0.000<0.01). The differences of expressions of the alpha -SMA, CTGF and collagen I mRNA in 30, 150, 750 mu mol/L Y-27632 group were statistically significant, compared with those in control group, respectively (alpha -SMA, P=0.002, 0.000, 0.000; CTGF, P=0.014, 0.002, 0.001; collagen I,P=0.003, 0.002, 0.000). CONCLUSION: Blocking the Rho/ROCK signaling pathway by using of Y-27632 could inhibit the cellular proliferation and the expression of both CTGF and alpha -SMA whatever OTFS induced by TGF-beta 1 or not. Y-27632 suppressed the expression of collagen I mRNA without induction. 展开更多
关键词 Y-27632 ocular Tenon's capsule fibroblasts transforming growth factor beta type 1 α-smooth muscular actin connective tissue growth factor collagen I
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Expression of serine protease SNC19/matriptase and its inhibitor hepatocyte growth factor activator inhibitor type 1 in normal and malignant tissues of gastrointestinal tract 被引量:9
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作者 Lei Zeng Jiang Cao Xing Zhang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第39期6202-6207,共6页
AIM: To provide the expression profile of serine protease SNC19/matriptase and its inhibitor hepatocyte growth factor activator inhibitor type 1 (HAI-1) in normal and malignant tissues of gastrointestinal tract at ... AIM: To provide the expression profile of serine protease SNC19/matriptase and its inhibitor hepatocyte growth factor activator inhibitor type 1 (HAI-1) in normal and malignant tissues of gastrointestinal tract at mRNA level for further study on their correlations with tumor progression and metastasis. METHODS: Total RNAs were prepared from 37 samples of colorectal cancer tissues, 40 samples of gastric cancer tissues, and their adjacent normal tissues. The expression of SNC19/matriptase and HAI-1 in these samples was detected by real-time fluorescent quantitative PCR using glyceraldehyde-3-phosphate dehydrogenase as internal standard, and the clinical significance for the correlation with clinicopathological parameters was evaluated. RESULTS: In gastric cancer tissues the expression of HAI-1 and SNC19/matriptase was significantly lower than that in the corresponding adjacent normal tissues (Z = -3.280, P= 0.006; Z= -4.651, P= 0.000). HAI-1:SNC19/matriptase ratio showed no difference between normal and malignant tissues (P〉0.05). Analysis of clinicopathological parameters showed decreased expression of HAI-1 and HAI-1:SNC19/ matriptase ratio associated with stage Ⅲ/Ⅳ gastric tumors as compared to stage Ⅰ/Ⅱ ones (Z= -2.140, P= 0.031; Z = -2.155, P = 0.031), and with lymph node-positive gastric cancer tissues as compared to lymph node-negative ones (Z = -2.081, P = 0.036; Z= -2.686, P = 0.006). The expression of SNC19/matriptase had no relationship with stages and lymph node metastasis (P〉0.05). The expression of HAI-1 and HAI-1:SNC19/matriptase ratio increased in well-differentiated gastric cancer tissues, but there was no statistical significance (P〉0.05). The difference of SNC19/matriptase expression was not significant in gastric cancer tissues of different histological differentiation status (P〉0.05). In colorectal cancer tissues, the expression of HAI-1 and SNC19/matriptase was also markedly lower than that in their adjacent normal tissues (Z= -3.100, P = 0.002; Z= -2.731, P = 0.006), whereas HAI-1:SNC19/matriptase ratio showed no difference. Decreased expression of HAI-1 was associated with increased invasive depth and lymph node metastasis, but there was no statistical significance (P〉0.05). The difference of SNC19/matriptase expression and HAI-1: SNC19/matriptase ratio was not significant in different stages and different lymph node metastasis status (P〉0.05). The expression of SNC19/matriptase, HAI-1 or HAI-1: SNC19/matriptase ratio showed no difference in colorectal cancer tissues of different histological differentiation status (P〉0.05). CONCLUSION: The expressions of SNC19/matriptase and its inhibitor HAI-1 are decreased in gastrointestinal cancer tissues compared to their normal counterparts, and the decreased expression of HAI-1 may correlate with invasion and lymph node metastasis. The possible mechanisms involved need to be further investigated. 展开更多
关键词 MATRIPTASE Hepatocyte growth factor activator inhibitor type 1 EXPRESSION Metastasis
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Roles of fibroblast growth factors in the treatment of diabetes 被引量:1
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作者 Chun-Ye Zhang Ming Yang 《World Journal of Diabetes》 SCIE 2024年第3期392-402,共11页
Diabetes affects about 422 million people worldwide,causing 1.5 million deaths each year.However,the incidence of diabetes is increasing,including several types of diabetes.Type 1 diabetes(5%-10%of diabetic cases)and ... Diabetes affects about 422 million people worldwide,causing 1.5 million deaths each year.However,the incidence of diabetes is increasing,including several types of diabetes.Type 1 diabetes(5%-10%of diabetic cases)and type 2 diabetes(90%-95%of diabetic cases)are the main types of diabetes in the clinic.Accumulating evidence shows that the fibroblast growth factor(FGF)family plays important roles in many metabolic disorders,including type 1 and type 2 diabetes.FGF consists of 23 family members(FGF-1-23)in humans.Here,we review current findings of FGFs in the treatment of diabetes and management of diabetic complications.Some FGFs(e.g.,FGF-15,FGF-19,and FGF-21)have been broadly investigated in preclinical studies for the diagnosis and treatment of diabetes,and their therapeutic roles in diabetes are currently under investigation in clinical trials.Overall,the roles of FGFs in diabetes and diabetic complications are involved in numerous processes.First,FGF intervention can prevent high-fat diet-induced obesity and insulin resistance and reduce the levels of fasting blood glucose and triglycerides by regulating lipolysis in adipose tissues and hepatic glucose production.Second,modulation of FGF expression can inhibit renal and cardiac fibrosis by regulating the expression of extracellular matrix components,promote diabetic wound healing process and bone repair,and inhibit cancer cell proliferation and migration.Finally,FGFs can regulate the activation of glucoseexcited neurons and the expression of thermogenic genes. 展开更多
关键词 Fibroblast growth factors type 1 diabetes type 2 diabetes Metabolic disorders TREATMENT Clinical trials
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The remedial effect of soluble interleukin-1 receptor type Ⅱ on endometriosis in the nude mouse model 被引量:1
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作者 Liying Gao Liang Sun +6 位作者 Yugui Cui Zhen Hou Li Gao Jing Zhou Yundong Mao Suping Han Jiayin Liu 《The Journal of Biomedical Research》 CAS 2010年第1期43-50,共8页
Objective: Recent studies have shown that the local expression of soluble interleukin (IL) -1 receptor type Ⅱ (slL-1 R Ⅱ ) in endometrial tissue of women with endometriosis is decreased, and the depression of I... Objective: Recent studies have shown that the local expression of soluble interleukin (IL) -1 receptor type Ⅱ (slL-1 R Ⅱ ) in endometrial tissue of women with endometriosis is decreased, and the depression of IL-1 R Ⅱ was more significant in infertile women than that in fertile women with endometriosis. In this research, we investigated the remedial effect of slL-1-R Ⅱ administration on endometriosis in the nude mouse model. Methods: Nineteen nude model mice with endometriosis were randomly divided into three groups: group A was treated by intraperitoneal administration with only slL-1 R Ⅱ for two weeks, group B was similarly treated with only IL- 1, and group C (control) was administered saline. After 2 weeks, the size of the ectopic endometrial lesions was calculated, and the expression of vascular endothelial growth factor (VEGF) and B-cell lymphoma leukemia-2 (Bcl- 2) were detected by immunohistochemistry. The IL-8 and VEGF levels in the peritoneal fluid (PF) and serum were also measured by enzyme-linked immunosorbent assay (ELISA). Results: The mean size of ectopic endometrial lesion did not differ between the three groups (P 〉 0.05). Compared with the control, the expression of VEGF and Bcl-2 was significantly lower in group A, and higher in group B. In the three groups, the levels of IL-8 in the PF and serum were highest in group A, and lowest in group B. Conclusion: slL-1 R Ⅱ may suppresse hyperplasia of ectopic endometriosis, perhaps by reducing the expression of certain cytokines, such as VEGF, IL-8, and Bcl-2, which could provide a new clinical strategy for the treatment of endometriosis. 展开更多
关键词 INTERLEUKIN-1 solubleinterleukin-1 receptor type ENDOMETRIOSIS nude mouse model
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儿童及青少年1型糖尿病患者维生素D缺乏现状及影响因素分析
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作者 杨鑫 林梦 余爽 《现代临床医学》 2024年第3期169-172,共4页
目的:调查儿童及青少年1型糖尿病(T1DM)患者维生素D缺乏的现状并分析其影响因素。方法:收集2021年1月至2022年11月某医院小儿内分泌科住院179例T1DM患者的临床资料,统计儿童及青少年T1DM患者发生维生素D缺乏的情况,采用logistic回归分... 目的:调查儿童及青少年1型糖尿病(T1DM)患者维生素D缺乏的现状并分析其影响因素。方法:收集2021年1月至2022年11月某医院小儿内分泌科住院179例T1DM患者的临床资料,统计儿童及青少年T1DM患者发生维生素D缺乏的情况,采用logistic回归分析其影响因素。结果:179例住院儿童及青少年T1DM患者发生维生素D严重缺乏34例(18.99%),维生素D缺乏79例(44.13%),维生素D不足54例(30.17%)维生素D充足12例(6.70%)。年龄、民族、入院时是否为糖尿病酮症酸中毒及检测季节是儿童及青少年T1DM患者维生素D缺乏的影响因素(P<0.05)。结论:儿童及青少年T1DM患者维生素D缺乏发生率高,尤其是7岁以上的T1DM患者。应针对其影响因素采取相应预防措施,以降低维生素D缺乏的发生风险。 展开更多
关键词 儿童 青少年 1型糖尿病 维生素D 影响因素
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2型糖尿病患者血清胰岛素样生长因子-1水平与颈动脉不稳定性斑块的相关性
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作者 李想 杨辰希 +2 位作者 朱钊 吴敏 邹毅 《神经损伤与功能重建》 2024年第10期569-573,共5页
目的:分析2型糖尿病患者血清胰岛素样生长因子-1(insulin-like growth factor-1,IGF-1)水平与颈动脉不稳定性斑块的相关性。方法:选取孝感市中心医院内分泌科2022年2月至2023年2月住院治疗的2型糖尿病患者213例,使用彩色多普勒超声诊断... 目的:分析2型糖尿病患者血清胰岛素样生长因子-1(insulin-like growth factor-1,IGF-1)水平与颈动脉不稳定性斑块的相关性。方法:选取孝感市中心医院内分泌科2022年2月至2023年2月住院治疗的2型糖尿病患者213例,使用彩色多普勒超声诊断仪测定双侧颈总动脉、分叉及颈内动脉、颈外动脉的内壁,根据超声影像特征将研究对象分为无斑块组(73例)、稳定性斑块组(51例)、不稳定性斑块组(89例)。检测并比较各组临床资料、实验室指标及血清IGF-1水平;采用Spearman相关分析探讨2型糖尿病患者合并颈动脉不稳定斑块组血清IGF-1水平与各指标的关系;采用多因素Logistic回归分析2型糖尿病患者颈动脉斑块不稳定的影响因素。结果:与无斑块组比较,稳定性斑块组年龄、收缩压、糖化血红蛋白(HbA1c)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)水平较高,IGF-1水平较低;不稳定斑块组年龄、HbA1c、TG、LDL-C水平较高,IGF-1水平较低,差异均有统计学意义(P<0.05)。与稳定性斑块组比较,不稳定性斑块组HbA1c、TG、LDL-C水平较高,收缩压、IGF-1水平较低,差异有统计学意义(P<0.05)。Spearman相关分析显示,2型糖尿病合并颈动脉不稳定斑块组患者血清IGF-1水平与年龄、收缩压、HbA1c、LDL-C呈负相关(P<0.05)。Logistic回归分析显示,血清HbA1c、LDL-C、TG、IGF-1为2型糖尿病患者颈动脉斑块不稳定的影响因素(P<0.05)。结论:IGF-1低水平可能为2型糖尿病患者颈动脉斑块不稳定的影响因素,可辅助评估斑块的形成及进展。 展开更多
关键词 颈动脉斑块 2型糖尿病 血清胰岛素样生长因子-1
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SIRT1/NF-κB信号通路与脑梗死后认知障碍风险及认知障碍程度的相关性分析
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作者 雷延成 张品元 +2 位作者 樊青俐 王进鹏 张豪 《中国现代医学杂志》 CAS 2024年第20期13-18,共6页
目的探讨沉默信息调节因子2相关酶1(SIRT1)/核因子-κB(NF-κB)信号通路与脑梗死后认知障碍风险及认知障碍程度的相关性。方法选取2020年6月—2023年1月青海省人民医院收治的153例急性脑梗死患者,采用简易智力状态检查量表(MMSE)评估患... 目的探讨沉默信息调节因子2相关酶1(SIRT1)/核因子-κB(NF-κB)信号通路与脑梗死后认知障碍风险及认知障碍程度的相关性。方法选取2020年6月—2023年1月青海省人民医院收治的153例急性脑梗死患者,采用简易智力状态检查量表(MMSE)评估患者的认知功能,MMSE评分27~30分的患者作为认知正常组(86例)、MMSE评分≤26分的患者作为认知障碍组(67例)。比较两组蒙特利尔认知评估量表(MoCA)评分及MMSE评分;检测患者SIRT1、NF-κB mRNA相对表达量;采用Pearson法分析SIRT1、NF-κB mRNA相对表达量与MoCA评分和MMSE评分的相关性;绘制受试者工作特征(ROC)曲线,分析SIRT1、NF-κB mRNA相对表达量预测认知功能障碍的价值。结果认知障碍组MMSE评分各项目得分及总分均低于认知正常组(P<0.05)。认知障碍组MoCA评分各项目得分及总分均低于认知正常组(P<0.05)。认知障碍组SIRT1 mRNA相对表达量低于认知正常组,NF-κB mRNA相对表达量高于认知正常组(P<0.05)。重度认知功能障碍患者SIRT1 mRNA相对表达量低于中度和轻度认知功能障碍患者(P<0.05),中度认知功能障碍患者低于轻度认知功能障碍患者(P<0.05),重度认知功能障碍患者NF-κB mRNA相对表达量高于中度和轻度认知功能障碍患者(P<0.05),中度认知功能障碍患者高于轻度认知功能障碍患者(P<0.05)。SIRT1 mRNA相对表达量与MoCA评分和MMSE评分呈正相关(r=0.497和0.532,均P<0.05),NF-κB mRNA相对表达量与MoCA评分和MMSE评分呈负相关(r=-0.518和-0.552,均P<0.05)。ROC曲线结果显示,SIRT1、NF-κB mRNA相对表达量单独及联合预测急性脑梗死认知功能障碍发生的曲线下面积分别为0.825(95%CI:0.749,0.901)、0.897(95%CI:0.826,0.968)、0.948(95%CI:0.916,0.980),敏感性分别为73.1%(95%CI:0.674,0.852)、83.6%(95%CI:0.788,0.949)、88.1%(95%CI:0.835,0.918),特异性分别为75.6%(95%CI:0.648,0.842)、80.2%(95%CI:0.755,0.916)、84.9%(95%CI:0.806,0.882)。结论急性脑梗死后认知功能障碍患者SIRT1 mRNA相对表达量较低,NF-κB mRNA相对表达量较高,且表达量与认知功能障碍程度具有关,通过检测其表达可为预测急性脑梗死后认知功能障碍的发生提供帮助。 展开更多
关键词 脑梗死 认知功能障碍 沉默信息调节因子2相关酶1 核因子-ΚB 相关性
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Psychosocial factors affecting the etiology and management of type 1 diabetes mellitus:A narrative review 被引量:1
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作者 Anja Turin Maja DrobničRadobuljac 《World Journal of Diabetes》 SCIE 2021年第9期1518-1529,共12页
Type 1 diabetes(T1D)is one of the most common chronic diseases in children and adolescents worldwide.Its etiopathogenesis results from the interplay of genetic and environmental variables.Among the latter,psychologica... Type 1 diabetes(T1D)is one of the most common chronic diseases in children and adolescents worldwide.Its etiopathogenesis results from the interplay of genetic and environmental variables.Among the latter,psychological stress has been implicated in disease onset as well as disease management.Various studies,including large population-based studies,have highlighted the role of stressful life events in the etiopathogenesis of T1D.In this article,we also emphasize the importance of attachment in the early child-caregiver relationship,which can be seen as a measure of the quality of the relationship and is crucial for stress and emotional regulation.It serves as a model for all subsequent relationships in one’s life.We summarize some of the few studies performed in the field of attachment and T1D etiopathogenesis or management.T1D management demands a lifelong therapeutic regimen to prevent acute and chronic complications.In addition to psychological stress,psychological factors such as family functioning,developmental adjustment,autonomy,mental health problems and other factors have been found to relate to metabolic control.Psychological factors need to be understood not as a single directional causality-based principle but as a dynamic bi-or multidirectional system that is affected by the normal developmental transitions of childhood and adolescence. 展开更多
关键词 type 1 diabetes Psychosocial factors Stressful life events ETIOLOGY Disease management ATTACHMENT
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Effects of Tanshinone ⅡA on Transforming Growth Factor β1-Smads Signal Pathway in Renal Interstitial Fibroblasts of Rats 被引量:1
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作者 唐锦辉 占成业 周建华 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2008年第5期539-542,共4页
The effects of tanshinone ⅡA (TSN) on transforming growth factor β1 (TGFβ1) signal transduction in renal interstitial fibroblasts of rats were studied in order to investigate its mechanism in prevention of rena... The effects of tanshinone ⅡA (TSN) on transforming growth factor β1 (TGFβ1) signal transduction in renal interstitial fibroblasts of rats were studied in order to investigate its mechanism in prevention of renal interstitial fibrosis. Rat renal fibroblasts of the line NRK/49F were cultured in vitro, stimulated with 5 ng/mL TGFβ1 and pretreated with 10-6, 10-5, 10-4 mol/L TSN respectively. The mRNA levels of fibronectin (FN) were examined by RT-PCR. The protein expression of FN and Smads was detected by Western blot. TGFβ1 induced the expression of FN mRNA and Smads in a time-dependent manner in a certain range. Compared with pre-stimulation, the FN mRNA and protein levels were increased by 1.1 times and 1.5 times respectively (P〈0.01, P〈0.01), and the protein expression of phosphorylated Smad2/3 (p-Smad2/3) increased by 7 times at the end of TGFβ1 stimulation (P〈0.01). TSN pretreatment may down-regulate the FN and p-Smad2/3 expression in a dose-dependent manner. 10-6 mol/L TSN pretreatment had no effect on the FN and p-Smad2/3 expression (both P〉0.05). After pretreatment with 10-5 and 10-4 mol/L TSN, the FN mRNA levels were decreased by 28.1% and 43.8% respectively (P〈0.05, P〈0.01), the FN protein levels were decreased by 40% and 44% respectively (P〈0.05, P〈0.05), and the p-Smad2/3 protein expression were decreased by 40% and 65% respectively (P〈0.05, P〈0.01). The inhibitory effect of TSN on renal interstitial fibrosis may be related to its blocking effect on TGFβ1-Smads signal pathway in renal intersti- tial fibroblasts. 展开更多
关键词 tanshinone A FIBROBLAST transforming growth factor β1 SMADS
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Dyslipidemia and cardiovascular disease risk factors in patients with type 1 diabetes:A single-center experience 被引量:1
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作者 Sari Krepel Volsky Shlomit Shalitin +7 位作者 Elena Fridman Michal Yackobovitch-Gavan Liora Lazar Rachel Bello Tal Oron Ariel Tenenbaum Liat de Vries Yael Lebenthal 《World Journal of Diabetes》 SCIE 2021年第1期56-68,共13页
BACKGROUND Type 1 diabetes(T1D)contributes to altered lipid profiles and increases the risk of cardiovascular disease(CVD).Youth with T1D may have additional CVD risk factors within the first decade of diagnosis.AIM T... BACKGROUND Type 1 diabetes(T1D)contributes to altered lipid profiles and increases the risk of cardiovascular disease(CVD).Youth with T1D may have additional CVD risk factors within the first decade of diagnosis.AIM To examine risk factors for dyslipidemia in young subjects with T1D.METHODS Longitudinal and cross-sectional retrospective study of 170 young subjects with T1D(86 males;baseline mean age 12.2±5.6 years and hemoglobin A1c 8.4%±1.4%)were followed in a single tertiary diabetes center for a median duration of 15 years.Predictors for outcomes of lipid profiles at last visit(total cholesterol[TC],triglycerides[TGs],low-density lipoprotein-cholesterol[LDL-c],and highdensity lipoprotein-cholesterol[HDL-c])were analyzed by stepwise linear regression models.RESULTS At baseline,79.5%of the patients had at least one additional CVD risk factor(borderline dyslipidemia/dyslipidemia[37.5%],pre-hypertension/hypertension[27.6%],and overweight/obesity[16.5%])and 41.6%had multiple(≥2)CVD risk factors.A positive family history of at least one CVD risk factor in a first-degree relative was reported in 54.1%of the cohort.Predictors of elevated TC:family history of CVD(β[SE]=23.1[8.3],P=0.006);of elevated LDL-c:baseline diastolic blood pressure(DBP)(β[SE]=11.4[4.7],P=0.003)and family history of CVD(β[SE]=20.7[6.8],P=0.017);of elevated TGs:baseline DBP(β[SE]=23.8[9.1],P=0.010)and family history of CVD(β[SE]=31.0[13.1],P=0.020);and of low HDL-c levels:baseline DBP(β[SE]=4.8[2.1],P=0.022]).CONCLUSION Our findings suggest that elevated lipid profiles are associated with DBP and a positive family history of CVD.It is of utmost importance to prevent and control modifiable risk factors such as these,as early as childhood,given that inadequate glycemic control and elevation in blood pressure intensify the risk of dyslipidemia. 展开更多
关键词 type 1 diabetes Children and adolescents Cardiovascular disease risk factors DYSLIPIDEMIA HYPERTENSION Family history of cardiovascular disease risk factors
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KIT and platelet-derived growth factor receptor α wild-type gastrointestinal stromal tumor associated with neurofibromatosis type 1: Two case reports 被引量:1
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作者 You-Wei Kou Ying Zhang +1 位作者 Ya-Ping Fu Zhe Wang 《World Journal of Clinical Cases》 SCIE 2019年第24期4398-4406,共9页
BACKGROUND Gastrointestinal stromal tumors(GISTs) associated with neurofibromatosis are uncommon compared to their gastrointestinal counterparts. Patients with neurofibromatosis type 1(NF-1) have an increased risk of ... BACKGROUND Gastrointestinal stromal tumors(GISTs) associated with neurofibromatosis are uncommon compared to their gastrointestinal counterparts. Patients with neurofibromatosis type 1(NF-1) have an increased risk of developing gastrointestinal tumors, including rare types such as GIST.CASE SUMMARY A 60-year-old male Chinese patient was diagnosed with NF-1 10 years ago and presented with upper abdominal discomfort and black stools. Endoscopic ultrasonography and an enhanced abdominal computed tomography scan revealed a mass located 4 cm from the muscular layer of the descending duodenum. A 59-year-old Chinese woman who was diagnosed with NF-1 25 years ago presented with sudden unconsciousness and black stools. Multiple masses in the duodenum were noted by echogastroscopy and an enhanced abdominal computed tomography scan. Both patients presented with cutaneous neurofibromas. The histologic examination of tumors from both patients revealed spindle cells and low mitotic activity. Immunohistochemically, the tumor cells showed strong positivity for KIT(CD117), DOG-1, CD34, and Dehydrogenase Complex Subunit B, and negativity for SMA, desmin, S-100, and β-catenin. None of the six tumors from two patients had KIT exon 9, 11, 13, or 17 or platelet-derived growth factor receptor α exon 12 or 18 mutation, which is a typical finding for sporadic GISTs. None of the six tumors from the two patients had a BRAFV600 E mutation. The patients were alive and well during the follow-up period(range:0.6-5 yr).CONCLUSION There have been only a few previous reports of GISTs associated with NF-1.Although GISTs associated with NF-1 have morphologic and immunohistochemical similarities with GISTs, the pathogenesis, incidence,genetic background, and prognosis are not completely known. A medical history of NF-1 in a patient who has gastrointestinal bleeding or anemia and an intraabdominal mass with nonspecific computed tomography features may help in diagnosing GIST by virtue of the well-known association of these two entities.Molecular genetic studies of cases indicated that GISTs in NF-1 patients have a different pathogenesis than sporadic GISTs. 展开更多
关键词 NEUROFIBROMATOSIS Gastrointestinal stromal KIT and platelet-derived growth factor receptorαwild type Molecular genetic studies Neurofibromatosis type 1 Case report
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