细胞因子在糖尿病肾病中的研究进展

糖尿病肾病是糖尿病常见的并发症,其发病机制尚未完全明了。细胞因子可影响糖代谢障碍和血液循环。本文就细胞因子与糖尿病肾病发病关系密切的肿瘤坏死因子-α、肝细胞生长因子、转化生长因子-β、血管内皮生长因子、结缔组织生长因子、白细胞介素、内皮素和一氧化氮等因子的研究进展作一综述。     

用现代系统思维方式探讨糖尿病肾病发病机制

随着科技进步、生产发展、生活模式的改变及社会老龄化进程 ,糖尿病发病率正在逐年增加 ,我国的糖尿病患病率 1980年为 0 .6% ,1998年全国部分省市人群糖尿病普查 ,发现糖尿病患病率上升为3 2 1% ,糖耐量减退为 4 67%。糖尿病患病人数的剧增 ,随之而来的是糖尿病慢性并发症 ,如糖尿病肾病、视网膜病变、神经病变及心血管并发症的猛增 ,在 1型和 2型糖尿病中糖尿病肾病分别占 30 %～4 0 %与 15%～ 2 0 %左右 ,糖尿病肾病已成为导致慢性肾衰的首要病因。深入系统及全面探讨糖尿病肾病的发病机制是指导治疗的关键。近年来随着对糖尿病肾病发病…     

脂肪细胞因子与2型糖尿病的防治

脂肪细胞因子与2型糖尿病并发症关系密切,随着对胰岛素抵抗(IRS)在2型糖尿病作用的认识,脂肪细胞因子的提出,使2型糖尿病并发症防治观念发生了根本的转变,提出了2型糖尿病并发症关防治新策略:从以降糖治疗为主到全面综合防治.对脂肪细胞因子和脂肪细胞因子与2型糖尿病并发症的关系的认识,体现了循证医学的思想和创新思维的启动.     

脂质调控与糖尿病肾病关系的研究进展

糖尿病肾病(DKD)患者常伴有脂代谢紊乱。高糖诱导的过量甘油二脂(DAG)可激活蛋白激酶C(PKC),进而激活下游通路如血管内皮生长因子(VEGF)、转化生长因子β1(TGFβ1)、纤溶酶原激活物抑制物(PAI-1)、核转录因子(NF-κB)等,加速DKD的进展。同时,研究表明神经酰胺在DKD发病过程中起重要作用。而降脂药物在糖尿病肾脏疾病的效应引起了广泛关注,其保护机制可能与阻断PKC信号通路、减少脂质中间代谢产物神经酰胺生成有关。本文通过介绍脂代谢紊乱对DKD的影响以及降脂药物保护肾脏的潜在机制,阐述脂质调控与DKD之间的密切关联。     

新医改背景下控制糖尿病肾病的基本方略

新医改背景下控制糖尿病肾病的基本方略包括微量蛋白尿的早期定性、早期和全程控制糖尿病共性高血压、糖尿病肾病的基本防护方略的程序化设计和延缓与防护糖尿病肾病的基本干预方略.后者包括ACEI和ARBs干预DN的发生与发展、防护糖尿病肾病的最佳疗法--抗高血压治疗.     

脂肪细胞因子与2型糖尿病的防治

脂肪细胞因子与2型糖尿病并发症关系密切,随着对胰岛素抵抗(IRS)在2型糖尿病作用的认识,脂肪细胞因子的提出,使2型糖尿病并发症防治观念发生了根本的转变,提出了2型糖尿病并发症关防治新策略:从以降糖治疗为主到全面综合防治。对脂肪细胞因子和脂肪细胞因子与2型糖尿病并发症的关系的认识,体现了循证医学的思想和创新思维的启动。     

用现代医学理论阐明阴虚证的本质和发病学机理

用现代医学理论阐明阴虚证的本质具有重大科学意义,但我国半个世纪的研究未能取得根本突破.用现代医学理论阐述了阴虚证的本质和发病学机理,即阴虚证的本质是细胞因子,其发病学机理是由于机体在各种致病因素的作用下,白细胞介素1和肿瘤坏死因子等炎性细胞因子基因的表达水平增强、生物学活性相对升高,引起细胞因子网络紊乱的结果.     

新医改背景下控制糖尿病肾病的基本方略

新医改背景下控制糖尿病肾病的基本方略包括微量蛋白尿的早期定性、早期和全程控制糖尿病共性高血压、糖尿病肾病的基本防护方略的程序化设计和延缓与防护糖尿病肾病的基本干预方略。后者包括ACEI和ARBs干预DN的发生与发展、防护糖尿病肾病的最佳疗法——抗高血压治疗。     

鼻咽癌组织VEGF、TNF-α及其受体VEGFR1、P55的表达及意义

观察鼻咽癌黏膜上皮中血管内皮生长因子(VEGF)、肿瘤坏死因子α(TNF-α)及受体血管生长因子1(VEGFR1),肿瘤坏死生长因子受体蛋白55(P55)的表达情况,探讨其在鼻咽癌发病及进展中的意义.我们应用免疫组化SP法检测60例鼻咽癌和60例正常鼻黏膜上皮组织VEGF、TNF-α及VEGFR1、P55表达情况,分析其在鼻咽癌组织中的表达变化及意义.结果显示鼻咽癌黏膜上皮的VEGF、TNF-α、VEGFR1、P55表达高于正常鼻黏膜上皮.因此VEGF、TNF-α及其受体VEGFR1、P55在鼻咽癌黏膜上皮中过度表达,可能参与鼻咽癌的发病及疾病进展,对于鼻咽癌的预防及治疗具有重要意义.     

用现代医学理论阐明阴虚证的本质和发病学机理

用现代医学理论阐明阴虚证的本质具有重大科学意义,但我国半个世纪的研究未能取得根本突破。用现代医学理论阐述了阴虚证的本质和发病学机理,即阴虚证的本质是细胞因子,其发病学机理是由于机体在各种致病因素的作用下,白细胞介素1和肿瘤坏死因子等炎性细胞因子基因的表达水平增强、生物学活性相对升高,引起细胞因子网络紊乱的结果。     

儿童Graves'病研究进展

Grave's病(GD)是导致儿童甲亢最常见的病因,其易感性80%决定于基因因素.ATD治疗是最常推荐的初始治疗手段,但长期缓解率仅为30%.ATD诱导儿童GD缓解的合适用药时间尚不明确.最佳治疗方式(ATD、RAI或手术)的选择还存在重大争议.药物治疗复发的预测非常重要,最近建立了一种复发风险评分,通过种族、年龄、诊断时FT4、TRAb水平、ATD预期治疗持续时间将GD儿童分成低中高三类风险人群,对其复发风险作出评估,对于确定GD儿童在初始治疗时选择何种方案更为适合意义重大.     

Certification in Testing in Canada

This article presents a brief outline of a program developed by the Canada Employment and Immigration Commission (CEIC) for certifying employment counselors to use tests in Canada Employment Centres (CECs).     

自伤青少年的冲动性

以自我报告、行为学和脑电为指标, 检验自伤青少年的冲动性。研究1, 对820名普通中学生和72名工读生进行问卷调查, 探讨自伤行为与情绪调节困难、冲动性的关系。结果表明, 冲动性能够预测自伤行为, 且预测效应量大于情绪调节困难。研究2, 采用Go/Nogo范式的ERPs实验, 检验自伤组与对照组冲动控制的行为学与脑电差异。结果表明, 自伤组Nogo正确反应的N2波幅显著高于对照组, N2潜伏期在部分电极点处高于对照组。脑电地形图显示两者的脑电差异主要体现在前额叶区。结论：自伤青少年的冲动性高于同龄普通青少年。     

Occupational Stress in Workers and Managers in Steelworks in China

Occupational stressors and strains of 121 Chinese steelwork employees and 122 managers were measured using the Chinese version of the Occupational Stress Indicator (OSI). It was found that factors intrinsic to the job, Type A behavior, logic, and organizational structure and climate were the main predictors of mental ill-health and physical ill-health in managers. Organizational structure and climate and relationships with other people were important predictors for workers. Management processes and organizational forces were the strongest predicting factors of job satisfaction in both samples. On certain OSI scales and subscales, managers scored statistically higher than workers. It is proposed that these results reflect the enormous economic and social changes currently taking place in China, together with certain features inherent in Chinese organizational and managerial processes.     

Sex differences in relational aggression in preschool children in Iran

The purpose of this study was to compare scores on a Relational Aggression Questionnaire for preschool boys and girls in Iran. The questionnaire was developed here, and its reliability and validity were assessed. Teachers' reports of relational aggression in 258 children ages 3 to 7 years was studied. Sex differences in relational aggression were not observed and was not significantly different across age groups.     

Evidence for sex differences in brain organization in recovery in aphasia

Ninety-one adult aphasics of both sexes were studied before and after a 3-month period of language therapy. Although no initial sex difference was found in severity of language disorders, females within the global aphasic group showed significantly greater improvement in three tests of language comprehension. It is suggested that more bilateral representation of language functions in the female brain may account for this greater improvement.     

Ethical Issues in Counselling in Education

It is suggested that there are two quite distinct Systems of ethics and practice in use by counsellors in education: the integrated model, which emphasises viewing the counsellor-institution relationship as theprimary ethical perspective; and the differentiated model, which emphasises the counsellor-client relationship as the starting point for an ethical understanding of the counsellor's role. The implications of these two perspectives for ethical issues relating to sources of referrai, issues of confidentiality, accountability for resources, the implications of role diffusion, and the outcomes of counselling, are examined. The ethical consequences of viewing the two Systems as reconcilable or incompatible are explored.