2型糖尿病中医辨证分型与红细胞CR1分子基因型及数量表达的相关性研究

目的:探讨2型糖尿病中医辨证分型与红细胞CR1分子基因型及数量表达的关系.方法:检测58例2型糖尿病患者和27名健康人的红细胞CR1分子基因型及数量表达.结果:健康对照组及2型糖尿病燥热伤肺型、胃燥津伤型、肾阴亏虚型的红细胞CR1分子基因型高表达呈依次下降,而中、低表达呈逐渐上升趋势(P＜0.025);CR1分子数量表达亦呈依次下降,肾阴亏虚型与健康对照组、燥热伤肺型、胃燥津伤型比较,胃燥津伤型与健康对照组比较有显著差异(P＜0.001;P＜0.05).结论:红细胞CR1分子基因型及数量表达与2型糖尿病中医辨证分型,特别是肾阴亏虚型密切相关.     

系统性红斑狼疮患者CpG基序甲基化状态与淋巴细胞功能相关抗原-1表达的研究

目的 研究系统性红斑狼疮患者(SLE)CpG基序甲基化状态和淋巴细胞功能相关抗原-1(LFA-1)mRNA的表达水平,并探讨两者的关系.方法 提取26例SLE患者与17名健康人外周血淋巴细胞,分别用5-甲基胞嘧啶抗体与流式细胞仪检测CpG基序甲基化状态和反转录-聚合酶链反应(RT-PCR)分析LFA-1 mRNA表达水平.结果 SLE患者的CpG基序甲基化水平(10.0±1.2)低于健康对照组(11.9±1.0,P<0.05),并与SLE疾病活动指数(SLEDAI)旱负相关(r=-0.62,P<0.05);SLE患者IJFA-1 mRNA表达(0.55±0.11)明显高于健康对照组(0.25±0.08,P<0.05),并与SLEDAI呈正相关(r=0.54,P<0.05);SLE患者CpG基序甲基化水平与LFA-1 mRNA表达呈负相关(r=-0.57,P<0.05).结论 SLE患者存在CpG基序低甲基化状态,并与LFA-1高表达相关联,表观遗传学在SLE发病机制中具有重要作用.     

美沙酮维持治疗患者脱失的影响因素研究

目的 了解美沙酮维持治疗(MMT)门诊患者脱失的影响因素. 方法 将在天心区和衡阳市MMT门诊参治的353名患者,按维持时间长短分为脱失组和对照组,分析两组患者人口学、治疗前吸毒情况、治疗中情况、心理状况、接受家庭帮教情况之间的差别,分析影响患者脱失的因素. 结果 影响MMT门诊患者脱失的主要人口学因素有患者婚姻状况及家庭关系;影响MMT门诊患者脱失的吸毒行为因素有同居者吸毒状况;影响MMT门诊患者脱失的社会学因素有参加MMT后与吸毒朋友交往情况及是否实施社会帮教;影响MMT门诊患者脱失的心理学因素主要是焦虑状况和患者自尊状况. 结论 门诊对影响患者脱失的因素提前进行干预,能有效减少患者脱失,提高门诊治疗效果.     

系统性红斑狼疮患者CpG基序甲基化状态与淋巴细胞功能相关抗原-1表达的研究

目的 研究系统性红斑狼疮患者(SLE)CpG基序甲基化状态和淋巴细胞功能相关抗原-1(LFA-1)mRNA的表达水平,并探讨两者的关系.方法 提取26例SLE患者与17名健康人外周血淋巴细胞,分别用5-甲基胞嘧啶抗体与流式细胞仪检测CpG基序甲基化状态和反转录-聚合酶链反应(RT-PCR)分析LFA-1 mRNA表达水平.结果 SLE患者的CpG基序甲基化水平(10.0±1.2)低于健康对照组(11.9±1.0,P<0.05),并与SLE疾病活动指数(SLEDAI)旱负相关(r=-0.62,P<0.05);SLE患者IJFA-1 mRNA表达(0.55±0.11)明显高于健康对照组(0.25±0.08,P<0.05),并与SLEDAI呈正相关(r=0.54,P<0.05);SLE患者CpG基序甲基化水平与LFA-1 mRNA表达呈负相关(r=-0.57,P<0.05).结论 SLE患者存在CpG基序低甲基化状态,并与LFA-1高表达相关联,表观遗传学在SLE发病机制中具有重要作用.     

2021-09期目录

Objective To investigate the predictive effect of thyroglobulin antibody (TgAb) level after operation and the trend of TgAb change after 131I treatment on the curative effect of 131I treatment in patients with differentiated thyroid carcinoma (DTC). Methods A total of 95 patients with DTC who were positive for TgAb and who underwent total thyroidectomy and 131I treatment in the Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology from December 2016 to May 2018 were retrospectively analyzed. The patients included 16 males and 79 females, aged 11?63 (37.74±11.27) years old. 131I treatment was administered 2–6 months after surgery. Based on the response to therapy assessment system of DTC in the American Thyroid Association Management Guidelines and according to the images, the curative effect was divided into three groups, namely, structural excellent response group (A group, 54 cases), structural incomplete response group (B group, 19 cases), and structural indeterminate response group (C group, 22 cases). The following parameters were observed among the three groups: TgAb level before 131I treatment; percentage change at 1.5 months, 3–6 months, and 6–12 months; and rate of change of TgAb. The factors that might affect the curative effect were analyzed. Receiver operating characteristic (ROC) curves were drawn with the following: the TgAb level before 131I treatment; percentage change of TgAb at 1.5 months after treatment; and percentage change of TgAb at 3–6 months after treatment. The best critical value for predicting therapeutic effect was determined, and the diagnostic efficiency was calculated. The measurement data were compared through variance analysis or Kruskal-Wallis rank sum test. Chi-square test or Fisher's exact text were used to compare the count data among the groups. The multivariate Logistic regression analysis was used to analyze the factors that may affect the curative effect. Results The univariate regression analysis results showed that the mean age (F=3.48, P=0.03), lymph node metastasis rate (χ2=10.28, P<0.01), TgAb level before 131I treatment (χ2=16.03, P<0.01), 131I dose (Fisher's exact text, P=0.002), percentage changeand and rate of change of TgAb (except percentage change at 6?12 months) at 1.5 months, 3?6 months, and 6?12 months were significantly different among the three groups (χ2=8.55–22.79, all P<0.05). The multivariate Logistic regression analysis result showed that TgAb levels before 131I treatment were significantly different among the three groups (β=?0.006, OR=0.994; P<0.01), percentage change of TgAb at 1.5 months (β=0.327, OR=1.387; P=0.046), and percentage change of TgAb at 3?6 months (β=2.521, OR=12.439; P=0.041) had statistical significance. The optimal cut-off value of TgAb level on ROC curve was 201.4 U/mL with a sensitivity of 74.1% and specificity of 68.3%. The area under ROC curve (AUC) was 0.740. The optimal cut-off values of the percentage change of TgAb in 1.5 months and for 3–6 months after treatment were 9.7% and 19.2%; the sensitivities were 72.2% and 61.0%; the specificities were 87.0% and 58.5%; and the AUCs were 0.660 and 0.752, respectively. Conclusions Postoperative TgAb level enabled the prediction of the therapeutic effect of 131I. Patients with lower TgAb level showed better therapeutic effect. The decrease of TgAb after treatment was more significant than before treatment, suggesting that the 131I therapeutic effect was satisfactory.     

闭合复位经皮微创加压空心螺钉内固定治疗股骨颈骨折的临床观察

回顾性分析采用闭合复位经皮微创空心螺钉内固定治疗股骨颈骨折患者34例的临床资料,患者均得到随访,平均27个月（14～39个月）,髋关节功能评定按Harris评分标准：优良率88％。闭合复位经皮微创空心螺钉内固定治疗股骨颈骨折具有手术操作简便、固定可靠、最大限度保护骨折端血运、创伤小、术后恢复快的优点,临床患者依从性好,疗效满意。     

ADAM33在IL-4刺激的人气道平滑肌细胞中对NF-κB和TGF-β1表达的影响

目的 探讨解整合素-基质金属蛋白酶33(ADAM33)在白介素-4(IL-4)刺激的人气道平滑肌细胞(HASMCs)中对NF-κB和TGF-β1表达的影响,为进一步完善哮喘的发病机制提供理论基础.方法 以50μg/L的IL-4刺激HASMCs,以未刺激细胞组为对照,24h后实时荧光定量PCR法和Western blot法检测ADAM33的表达;设计并合成ADAM33-siRNA,IL-4刺激24h后瞬时转染ADAM33-siRNA,实时荧光定量PCR法和Western blot法检测抑制率;并且检测TGF-β1、NF-κB mRNA和蛋白的表达情况.结果 50 μg/L的IL-4较对照组明显促进了HASMCs中ADAM33的表达(P＜0.05),在mRNA水平表达量增加约4.36倍,蛋白水平增加约3.3倍;ADAM33-siRNA-575明显抑制了ADAM33在HASMCs中的表达;干扰组、阴性对照组和空白对照组TGF-β1 mRNA的相对表达量分别为0.602±0.024、1.01±0.176和1.239 ±0.171,NF-κB mRNA的表达量分别为0.54±0.08、1.014±0.21和1.049±0.378;TGF-β1蛋白的表达量分别为0.227±0.016、0.7 ±0.048和0.715±0.025,NF-κB蛋白的表达量分别为0.335±0.048、0.922±0.04和0.943±0.046.干扰组TGF-β1、NF-κB不论是在mRNA水平,还是在蛋白水平,均明显低于阴性对照组和空白对照组(P＜0.05).结论 ADAM33可能是IL-4调节人气道平滑肌细胞NF-κB/TGF-β1信号通路中的一个关键信号分子,有望成为防治哮喘的重要靶点.     

遗传性促血栓形成因素与视网膜静脉阻塞

视网膜静脉阻塞是继糖尿病视网膜病变之后引起视力丧失的第二大视网膜血管病.随着基因工程研究的发展,一些探讨遗传性促血柃形成因素在视网膜静脉阻塞发病机制中作用的研究成为热点,这些遗传性促血栓形成因素主要包括高半胱氨酸血症,抗磷脂抗体,活性蛋白C抵抗及凝血因子V突变,蛋白C、蛋白S和抗凝血酶Ⅲ的缺乏等.     

视网膜内界膜剥除在眼内异物伴黄斑部铁锈症的应用

目的描述视网膜内界膜剥离在眼内异物伴黄斑部铁锈症眼中的应用及其临床特点和效果。方法眼内异物患者,玻璃体视网膜手术中发现黄斑部有铁锈和异常物质附着5眼,行视网膜内界膜剥除。术前视力光感～0.05。追踪观察6m～38m。结果采用内界膜剥离很易彻底除去在黄斑前形成的铁锈抑或炎性沉着物。术后3眼获解剖和功能成功;2眼病程较长者术后反复PVR形成,最终1眼硅油不能取出,但视功能明显改善。术后矫正视力0.05～0.7,所有患者的视力均显著增加。尚未发现其所致的严重并发症。结论视网膜内界膜剥离可以清除因眼内异物所致的紧密附着在黄斑前视网膜表面的毒性物质;改善黄斑区局部的代谢,有利于黄斑功能的恢复。