糖原磷酸化酶抑制剂山楂酸对小鼠血糖和肝糖原的影响

目的：考察糖原磷酸化酶抑制剂山楂酸对正常和实验性高血糖模型小鼠的降血糖作用及对肝糖原的影响，初步探讨其降糖机制。方法：山楂酸灌胃7天，分别以皮下注射肾上腺素，口服葡萄糖造成小鼠高血糖模型，与正常组一起测定静脉血糖和肝糖原含量结果：山楂酸可显著对抗肾上腺素、葡萄糖引起的血糖升高，对抗肾上腺素引起的肝糖原降解，增加葡萄糖致高血糖小鼠肝糖原含量；可增加正常小鼠肝糖原储备，但不影响正常血糖、结论：山楂酸具有降血糖作用，机制与其抑制肝糖原分解有关。     

基于转录组的新疆紫草ERF转录因子家族生物信息学分析

从新疆紫草转录组分离出27个ERF转录因子家族基因, 平均大小为1 010 bp, 每个基因平均编码了212个氨基酸。以紫草ERF基因gi261363612为参考, 对27AeERFS从基因结构、表达量、理化性质、亚细胞定位、信号肽、高级结构和保守域的预测和分析等方面做了研究, 并对新疆紫草ERF家族做了系统进化分析, 认为最合适的建树方法为最大似然法。结果显示, 该家族存在3个保守域, 高级结构以无规则卷曲为主, 聚为CBF/DREB, ERF 2个亚族。     

EGFR过表达降低人子宫内膜癌细胞孕激素敏感性的研究

目的:检测表皮生长因子受体(EGFR)基因在子宫内膜癌孕激素敏感细胞株Ishikawa及孕激素不敏感细胞株KLE的表达,探讨EGFR基因过表达对人子宫内膜癌细胞孕激素敏感性的影响。方法:实时定量PCR法和蛋白印迹法检测Ishikawa和KLE细胞中EGFR及PR-BmRNA和蛋白的表达。将EGFR全长cDNA真核表达质粒在脂质体介导下转染至Ishikawa细胞,同时以转染空载体和未转染的Ishikawa细胞为对照,分别应用实时定量PCR检测各组细胞EGFR、PR-BmRNA表达的变化,应用蛋白印迹法检测各组细胞EGFR、PR-B蛋白表达的变化;CCK-8法观察转染EGFR基因后Ishikawa细胞对孕激素敏感性的变化。结果:(1)Ishikawa细胞中,EGFRmRNA和蛋白的表达明显低于KLE细胞(P<0.001),而PR-BmRNA和蛋白的表达则显著高于KLE细胞(P<0.001);(2)稳定转染EGFR基因后,Ishikawa细胞中EGFRmRNA和蛋白的表达水平明显高于转染空载体和未转染的Ishikawa细胞(P<0.001),而PR-BmRNA和蛋白的表达水平则显著降低;(3)10-8、10-7、10-6、10-5mol/L的MPA对未转染和转染空载体的Ishikawa细胞的抑制作用显著(P<0.05),但对稳定过表达EGFR的Ishikawa细胞无明显抑制作用(P>0.05)。结论:转染EGFR基因能有效提高Ishikawa细胞内EGFR基因的表达,但可下调PR-B基因的表达使Ishikawa细胞对MPA不敏感。     

Mixed invasive pulmonary Mucor and Aspergillus infection: a case report and literature review

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安罗替尼治疗晚期肺癌疗效及短期预后影响因素分析

目的 分析安罗替尼治疗晚期肺癌疗效及短期预后,探讨其影响因素,为临床治疗晚期肺癌提供理论依据.方法 选择住院的经安罗替尼治疗的81例晚期肺癌患者为研究对象,回顾性收集患者的一般资料、治疗疗效及预后信息,对不同亚组的疗效和预后进行比较分析,运用Logistic和Cox回归模型探讨疗效及短期预后的影响因素.结果 患者经治疗...     

Isolated splenic metastasis of endometrial cancer 12 years after treatment: A case report and literature review

Rationale:The spleen is an uncommon metastatic organ for malignant solid tumors because of its special anatomy and microenvironment. Isolated splenic metastasis of endometrial cancer is an extremely rare clinical event, with only 17 cases reported in literature.Patient concerns:We report the case of a 58-year-old woman with abdominal distension and nausea for 7 months who had undergone surgery and chemotherapy for endometrioid adenocarcinoma 12 years previously. A space-occupying lesion in the upper pole of the spleen was observed on an abdominal ultrasound.Diagnosis:The spleen was resected, and splenic metastasis of endometrial adenocarcinoma was histologically confirmed.Interventions:Splenectomy was performed, and no lymph nodes or other metastases were observed. The patient received postoperative chemotherapy with 6 cycles of docetaxel and carboplatin.Outcomes:The patient recovered well 11 months postoperatively, with no evidence of recurrence or metastatic disease.Lesson:Since the time interval between the diagnosis of primary endometrial cancer and splenic metastasis may be very long, it may be necessary to monitor the recurrence of endometrial cancer after primary treatment.     

乙肝携带者C3/Ig双特异性免疫复合物与体液免疫的相关性研究

目的 研究HBsAg无症状携带者（ASC）的体液免疫反应。方法 采用直线相关分析法,较系统地研究ASC的C3／Ig双特异性循环免疫复合物（C3／IgM-TCIC、C3／IgG-TCIC和C3／IgA-TCIC)与IgM、IgG、IgA和C3的相关性。结果 在健康对照组的诸种具有相关关系的指标中,ASC仅在C3／IgM-TCIC与总和游离IgM以及C3／IgG-TCIC与总和游离IgA具正相关与之一致。此外,ASC的C3／IgG-TCIC与复合IgA呈显著负相关,而健康人与之无关。结论ASC确存在体液免疫调节紊乱,其中最主要的是具有重要中和作用的IgG类抗体产生不足。     

Circulating T helper 9 cells and increased serum interleukin‐9 levels in patients with knee osteoarthritis

The purpose of this study was to examine the roles of T helper 9 (Th9) cells and the serum interleukin (IL)‐9 level in the pathogenesis of osteoarthritis (OA). The numbers of IL‐9⁺ CD4⁺ CD8^? T cells, interferon (IFN)‐γ+ CD4⁺ CD8^? T cells, IL‐4⁺ CD4⁺ CD8^? T cells, and IL‐17A⁺ CD4⁺ CD8^? T cells in 25 OA patients and 13 healthy controls (HC) were examined by flow cytometry. The serum concentrations of IL‐9, IL‐4, IL‐17A, and IFN‐γ were also determined. The numbers of CD4⁺CD45RO⁺ T cells, Th9 cells, Th1 cells, and Th17 cells in OA patients were significantly higher than those in HCs. Furthermore, serum IL‐9, IL‐17A, and IFN‐γ levels in OA patients were higher than those in HCs. The number of Th9 cells was positively correlated with the number of Th17 cells in OA patients. Furthermore, greater numbers of Th9 cells were positively associated with elevated C‐reactive protein, and both Th9 cells and IL‐9 levels were positively correlated with the Western Ontario and McMaster Universities Osteoarthritis index in OA patients. Th9 cell numbers and IL‐9 levels are correlated with OA patient symptoms and joint functionality and may be a marker of disease activity.     

佳贝和欧可芬滴眼液在白内障手术中应用的研究

目的：评价佳贝和欧可芬滴眼液在白内障术中维持瞳孔散大及术后抗炎作用疗效。胡机分组（佳贝组、欧可芬组和对照组）研究８６名白内障患者术前应用两种药物后,白内障术中瞳孔大小的改变以及对卡米可林（氨甲酰胆碱,Ｃａｒｂａｃｏｌ）缩瞳作用的影响;以地塞米松滴眼液为对照,研究应用两种滴眼液对术后角膜后ＫＰ和房水混浊度的影响,以及对术眼眼压的影响。结果：与对照组相比,佳贝和欧可芬都能有效抑制术中的瞳孔缩小（Ｐ〈０     

重庆地区丙型肝炎病毒基因型分布及临床意义

目的:了解重庆地区近年来丙型肝炎病毒(hepatitis C virus,HCV)基因型分布、演变和可能的临床意义,为更好防治丙型肝炎提供依据。方法:回顾性研究2010年1月至2013年12月期间在重庆医科大学附属第二医院就诊并有基因分型结果的丙型肝炎患者的基因型分布,并与该地区其它文献报道的数据相比较,探讨基因型演变的可能影响因素。结果:共收集941例HCV感染者,检出4种基因型、9种基因亚型,成功进行基因分型有857例(均为单一基因型,分型率91.1%)。其基因型分布为:1a 30例(3.5%)、1b 238例(27.8%)、2a 42例(4.9%)、2b 1例(0.1%)、3a 132例(15.4%)、3b 244例(28.5%)、3k 6例(0.7%)、6a124例(14.5%)、6b 40例(4.7%)。与5年前的结果比较发现HCV 1b、2a亚型明显下降,3型、6型比例上升,差异具有统计学意义。结论:3b、1b型为目前重庆地区丙型肝炎患者感染HCV的主要基因型,3a、6a型亦占有较大比例,提示重庆地区HCV流行的基因型呈现多样性。