多囊卵巢综合征与代谢综合征的关系

代谢综合征（metabolic syndrome，MS）的概念最早是由Reaven在1993年提出的，当时称为X综合征。其主要临床表型为胰岛素抵抗（insulin resistance，IR），高胰岛素血症，糖耐量异常（impaired glucose tolerance，IGT），高血压与致粥样脂质代谢异常。由于代谢综合征是高血压、血糖异常、血脂紊乱和肥胖症等多种疾病在人体内集结的一种状态，可直接导致严重心血管疾病的发生，并造成死亡，对人类健康危害巨大。因此，该综合征的诊断、治疗和预防受到医学界的广泛重视。[第一段]     

人宫颈癌脱落细胞端粒酶活性检测的意义

目的 研究宫颈上皮内瘤样病变(CIN )和宫颈癌脱落细胞端粒酶激活的意义。方法 采用端粒酶PCR-ELISA法检测13例CIN和17例宫颈癌脱落细胞端粒酶活性,并与相应的组织标本中端粒酶活性相比较,11例正常宫颈脱落细胞作为对照。结果8例(61.54％)CIN、14例(82.35％)宫颈癌脱落细胞表达端粒酶活性,正常宫颈无端粒酶活性,CIN、宫颈癌及正常宫颈脱落细胞端粒酶活性平均值分别为0.328±0.192、1.329±0.259和0.039±0.084,三组间端粒酶表达率和量存在显著差异。CINⅠ、Ⅱ、Ⅲ级之间端粒酶活性无明显差异。CIN及宫颈癌组织中端粒酶活性和相应脱落细胞一致。结论 端粒酶的激活是宫颈癌的早期改变,在宫颈癌发生发展过程中起重要作用;宫颈脱落细胞和组织中端粒酶活性可能成为宫颈癌早期诊断、预后判断和肿瘤浸润的标记物。     

小学教师心理健康与职业倦怠研究

目的:分析影响小学教师心理健康水平和职业倦怠的主要因素,评估小学教师心理健康以及职业倦怠现状,探讨提高小学教师心理素质的方法与途径,为小学教师心理健康和综合素质提高提供参考和科学依据.方法:采用心理测评和结构式访谈的方法对某小学114名教师作为样本进行研究,选用SCL-90症状自评量表(90题)、和教师职业倦怠量表MBI-ES(22题)施测.结果:小学教师SCL-90各因子与全国常模比较,在强迫、人际关系敏感、抑郁三个维度上高于全国常模,值得关注;根据MBI量表的计分和测量标准,小学教师职业倦怠问题有一定的普遍性;小学教师职业倦怠三个维度与心理健康9因子均呈正相关.结论:小学教师在强迫、人际、抑郁方面得分偏高,并可能是引起职业倦怠的影响因素之一,应提高心理健康水平以改善其职业倦怠现状.     

固尔苏预防早产儿呼吸窘迫综合征疗效分析

目的探讨肺泡表面活性物质制剂固尔苏预防早产儿呼吸窘迫综合征的临床疗效。方法将胎龄≤32周,体重≤1 500 g的早产儿36例分两组进行前瞻性临床研究,观察组18例出生后2 h内气管内滴入固尔苏,对照组18例未应用固尔苏。结果观察组发生新生儿呼吸窘迫综合征、出现并发症及死亡的例数较对照组明显减少（P〈0.05）;出生后6 h血气分析结果显示,观察组显著优于对照组（P〈0.01）。结论早产儿生后应尽早预防性应用固尔苏,可显著降低新生儿呼吸窘迫综合征的发病率,减少呼吸机的应用,提高早产儿的存活率。     

普米克令舒在儿童慢性鼻窦炎治疗中的作用

目的:探讨治疗小儿慢性鼻窦炎的有效方法。方法:将临床确诊为慢性鼻窦炎的210例患儿随机分为3组,分别是常规治疗组(A组)、雷诺考特治疗组(B组)和普米克令舒鼻喷治疗组(C组),均经2周系统治疗。结果:A、B、C组治疗1个月后总有效率分别是48%、61%和84%,C组明显高于其他2组。结论:普米克令舒鼻喷治疗小儿慢性鼻窦炎治愈率高,值得推广。     

固本喘嗽康颗粒平喘、抗炎及免疫作用实验研究

目的:观察固本喘嗽康颗粒的平喘、抗炎及免疫作用。方法:用卵蛋白雾化吸入致敏法建立大鼠哮喘模型,观察固本喘嗽康颗粒对大鼠引喘潜伏期和BALF中白细胞数的影响;用二甲苯及琼脂建立炎症模型观察固本喘嗽康颗粒对急性炎症及慢性炎症的作用;从体液免疫和细胞免疫两方面观察固本喘嗽康颗粒的免疫作用。结果:固本喘嗽康颗粒可明显延长大鼠引喘潜伏期,降低BALF中白细胞数;可明显对抗急性炎症和慢性炎症;对体液免疫和细胞免疫具有调节作用。结论:固本喘嗽康颗粒具有平喘、抗炎和免疫调节的作用。     

荆防颗粒中抑制新型冠状病毒蛋白酶3CLpro及PLpro的活性成分

目的：荆防颗粒是新型冠状病毒肺炎预防及轻症治疗的推荐用药,本文结合化学成分分析及活性检测,阐明其潜在的活性成分。方法：采用酶学方法测定荆防颗粒提取物对新型冠状病毒3-chymotrypsin-like protease (3CL^pro)、papain like protease (PL^pro)、spike protein receptor-binding domain (S-RBD)及人cyclooxygenase-2 (COX-2)的抑制活性,利用氨水引咳小鼠模型测试其止咳作用;基于liquid chromatography-mass spectrometry(LC/MS)技术对荆防颗粒进行化学成分定性、定量分析,阐明其化学组成;采用酶学实验、分子对接、定点突变等方法测定荆防颗粒中抑制3CL^pro、PL^pro的主要活性成分并阐明可能的作用机制。结果：荆防颗粒提取物对新型冠状病毒3CL^pro、PL^pro蛋白酶具有一定的抑制作用,且具有COX-2抑制活性及止...     

Investigation of Friction and Wear Behavior of Cast Aluminum Alloy Piston Skirt with Graphite Coating Using a Designed Piston Skirt Test Apparatus

A piston skirt friction and wear apparatus that simulates the contact and the relative motion of piston and cylinder liner in a real engine has been designed and constructed. With this apparatus, the friction and wear behavior of a cast aluminum alloy piston with a graphite coating under different loads was studied, and the effectiveness of the apparatus was confirmed. The total wear of the piston skirt was higher under a higher load, and the upper part of the skirt surface (around the height of the piston pin) was worn more severely. The wear mechanisms were studied and, based on the test results and surface analyses, three main wear modes were believed to occur in the wear process of the piston skirt: abrasive, adhesive, and fatigue wear. The effects of skirt profile design, coating, and surface texturing on the friction and wear behavior of the piston skirt can be investigated well using the proposed apparatus, which can truly reflect actual working conditions and is useful to improve the tribological performances of piston skirts.     

注重文化传承与创新为学校发展提供更加有力的精神支撑

通过哈医大注重学校文化传承与创新建设,在学校发展中起到助推作用的做法及存在问题的探讨,论述了如何进一步推进学校文化建设的思路及措施.     

Cell division control 42 elevates during infliximab therapy,and its increment relates to treatment response in ulcerative colitis patients

BackgroundCell division control 42 (CDC42) regulates multiple processes of inflammation and/or immunity in autoimmune diseases and also relates to the treatment efficacy of biologic regimens clinically. This study aimed to explore the longitudinal change in CDC42 during infliximab (IFX) treatment and its correlation with IFX response in ulcerative colitis (UC) patients.MethodsActive UC patients (N = 48) who received IFX were recruited, and their CDC42 expressions in peripheral blood mononuclear cells (PBMCs) were detected before treatment (W0) and at 12 weeks after treatment (W12) using RT‐qPCR. Also, CDC42 in PBMCs from UC patients with remission (N = 20) and health controls (HCs) (N = 20) were detected.ResultsCDC42 was reduced in active UC patients compared with UC patients with remission (p = 0.014) and HCs (p < 0.001). Besides, CDC42 was negatively correlated with CRP (p = 0.025), TNF‐α (p = 0.024), IL‐1β (p = 0.045), IL‐17A (p = 0.039), and Mayo score (p = 0.015) in active UC patients, but did not relate to ESR, disease duration, or IL‐6 (all p > 0.05), while CDC42 was only negatively related to CRP in UC patients with remission (p = 0.046). Interestingly, CDC42 was increased at W12 after IFX treatment in active UC patients (p < 0.001). Specifically, CDC42 was elevated during treatment in active UC patients with IFX response (p < 0.001), but did not obviously change in those without IFX response (p = 0.061). Furthermore, CDC42 at W12 was higher in active UC patients with IFX response compared with those without IFX response (p = 0.049).ConclusionCell division control 42 serves as a potential biomarker for monitoring disease progression and IFX response in UC patients.