不同重复经颅磁刺激模式对慢性精神分裂症阴性症状的疗效及安全性

目的：比较不同重复经颅磁刺激（ rTMS）模式对慢性精神分裂症阴性症状的疗效及安全性研究。方法：将90例慢性精神分裂症患者随机分为5Hz组、10Hz组、伪刺激组,每组30例。3组在维持原有抗精神病药物种类及剂量不变的基础上,刺激部位均选择左侧前额叶背外侧皮质区（ DLPFC）,刺激强度为80％运动阈值,每天1次,每周5次,共2周。治疗前后采用阳性与阴性症状量表（ PANSS）和阴性症状量表（ SANS）量表评定疗效。结果：3组治疗后比较,PANSS总分、阴性因子分、SANS评分差异有统计学意义（F＝22．99,39．73,31．90;P均＜0．05）,10Hz组较伪刺激组PANSS总分、阴性因子分、SANS评分低,差异有统计学意义（ q＝－5．60,－5．70,－7．67;P均＜0．05）;10Hz组较5Hz组PANSS总分、阴性因子分、SANS评分低,差异有统计学意义（ q＝－4．97,－5．80,－7．40;P均＜0．05）。与治疗前比较,10Hz组PANSS总分、阴性因子分、SANS评分降低,差异有统计学意义（ t＝－5．45,－7．03,－7．23;P均＜0．05）;5Hz组和伪刺激组PANSS总分及各因子分、SANS评分差异无统计学意义（P均＞0．05）。结论：10Hz rTMS模式能改善慢性精神分裂症患者阴性症状,有较好的安全性。     

消退后的恐惧返回:回溯性评估的影响

目的:探讨回溯性评估对恐惧消退返回的影响。方法:采用心理生理实验法,引入双耳分听实验技术范式,记录30名大学生被试对非条件性刺激(US)的预期值和对条件性刺激(CS)的皮肤电反应。结果:通过言语指导语告知被试"由于耳机故障,所以刚才左侧耳机听不到声音,右侧耳机一直运行正常"后,被试对CSl的皮肤电反应和对US预期值显著高于CSr与CSn,出现了显著的恐惧消退返回。结论:回溯性评估能够影响条件性恐惧的消退返回,进一步证明命题模型的合理性,为临床中更好实施暴露疗法提供了实验支持。     

情绪调节策略对压力性生活事件与工读生病理性网络使用关系的调节作用

目的:探讨情绪调节策略(表达抑制和认知重评)在压力性生活事件与工读生病理性网络使用(PIU)之间的调节作用。方法:采用压力性生活事件量表、情绪调节策略问卷和病理性网络使用量表对555名工读生进行测量。结果:1压力性生活事件、表达抑制与工读生PIU呈显著正相关,认知重评与工读生PIU呈显著负相关。2表达抑制会增强压力性生活事件对工读生PIU的风险效应;认知重评能够缓冲压力性生活事件对工读生PIU的风险效应。结论:表达抑制和认知重评对压力性生活事件与工读生PIU的关系具有调节作用。     

Tctex-1的生物学功能及其与肿瘤的关系

Tctex-1作为动力蛋白轻链家族的一员,在许多组织中广泛表达,能与多种细胞因子结合并通过动力蛋白依赖性或动力蛋白非依赖性(非动力蛋白依赖性)途径发挥生物学功能。Tctex-1作为一种重要的细胞因子,参与多个生物学过程,如应力纤维和黏着斑的形成,轴突发育,病毒感染,细胞的破骨过程等,同时也参与多种肿瘤的发生发展过程。通过对Tctex-1功能的研究为多种疾病的治疗提供了新的方向。     

Positional cloning and next-generation sequencing identified a TGM6 mutation in a large Chinese pedigree with acute myeloid leukaemia

An inherited predisposition to acute myeloid leukaemia (AML) is exceedingly rare, but the investigation of these families will aid in the delineation of the underlying mechanisms of the more common, sporadic cases. Three AML predisposition genes, RUNX1, CEBPA and GATA2, have been recognised, but the culprit genes in the majority of AML pedigrees remain obscure. We applied a combined strategy of linkage analysis and next-generation sequencing (NGS) technology in an autosomal-dominant AML Chinese family with 11 cases in four generations. A genome-wide linkage scan using a 500K SNP genotyping array was conducted to identify a previously unreported candidate region on 20p13 with a maximum multipoint heterogeneity LOD (HLOD) score of 3.56 (P=0.00005). Targeted NGS within this region and whole-exome sequencing (WES) revealed a missense mutation in TGM6 (RefSeq, {"type":"entrez-nucleotide","attrs":{"text":"NM_198994.2","term_id":"148664231","term_text":"NM_198994.2"}}NM_198994.2:c.1550T>G, p.(L517W)), which cosegregated with the phenotype in this family, and was absent in 530 healthy controls. The mutated amino acid was located in a highly conserved position, which may be deleterious and affect the activation of TGM6. Our results strongly support the candidacy of TGM6 as a novel familial AML-associated gene.     

HIV Prevalence and Correlates of Unprotected Anal Intercourse Among Men Who Have Sex with Men, Jinan, China

China’s HIV epidemic may be shifting towards predominantly sexual transmission and emerging data point to potential increases in HIV prevalence among men who have sex with men (MSM). There is particular need to assess the extent of risk behavior among MSM outside of China’s most cosmopolitan cities. We conducted a respondent-driven sampling survey (N = 428) to measure HIV seroprevalence and risk behavior among MSM in Jinan, China, the provincial capital of Shandong. HIV prevalence was 0.5% (95% confidence interval [CI] 0.1–1.0). Unprotected anal intercourse (UAI) in the last 6 months (reported by 61.4%) was associated with buying or selling sex to a man in the last 6 months, syphilis infection, multiple partners in the last month, low HIV knowledge and migrant status. No participant had previously tested for HIV. Risk for HIV transmission is widespread among MSM throughout China; basic prevention programs are urgently needed.     

乙型肝炎病毒感染患者肝移植术后再感染及其机制

肝移植已成为终末期肝脏疾病的一个重要治疗手段。但是，乙型肝炎病毒(HBV)相关性肝病患者肝移植术后，乙型肝炎的复发率达70％～80％，严重地影响了肝移植术的远期效果，成为亟待解决的一个问题。作者在对肝移植患者HBV再感染随访观察的基础上，采集外周血单个核淋巴细胞(PBMC)，进行HBV DNA定量检测和HBV共价闭合环状DNA(cccDNA)的定性检测，对肝移植术后患者HBV再感染的状况及其机制进行了探讨。     

Deciphering principles of morphogenesis from temporal and spatial patterns on the integument

Background : How tissue patterns form in development and regeneration is a fundamental issue remaining to be fully understood. The integument often forms repetitive units in space (periodic patterning) and time (cyclic renewal), such as feathers and hairs. Integument patterns are visible and experimentally manipulatable, helping us reveal pattern formative processes. Variability is seen in regional phenotypic specificities and temporal cycling at different physiological stages. Results: Here we show some cellular/molecular bases revealed by analyzing integument patterns. (1) Localized cellular activity (proliferation, rearrangement, apoptosis, differentiation) transforms prototypic organ primordia into specific shapes. Combinatorial positioning of different localized activity zones generates diverse and complex organ forms. (2) Competitive equilibrium between activators and inhibitors regulates stem cells through cyclic quiescence and activation. Conclusions: Dynamic interactions between stem cells and their adjacent niche regulate regenerative behavior, modulated by multi‐layers of macro‐environmental factors (dermis, body hormone status, and external environment). Genomics studies may reveal how positional information of localized cellular activity is stored. In vivo skin imaging and lineage tracing unveils new insights into stem cell plasticity. Principles of self‐assembly obtained from the integumentary organ model can be applied to help restore damaged patterns during regenerative wound healing and for tissue engineering to rebuild tissues. Developmental Dynamics 244:905–920, 2015. © 2015 Wiley Periodicals, Inc.     

规范化胰岛素注射培训对社区糖尿病患者血糖达标率的影响

目的 探讨规范化胰岛素注射培训对社区糖尿病患者血糖达标率的影响。 方法 选取某社区使用胰岛素笔注射治疗的糖尿病患者70例,通过调查问卷记录患者在胰岛素注射方面存在的问题,将患者随机分为培训组与对照组各35例,培训组根据所反映的问题采取规范化胰岛素注射培训,对照组采用传统的培训方式,2组均在培训后6个月进行效果评价。 结果 培训后培训组在胰岛素注射知识掌握及注射技巧方面优于对照组,血糖达标率高于对照组(χ²=4.644,P=0.031)。 结论 通过规范化胰岛素注射培训可提高社区糖尿病患者胰岛素注射知识及注射技巧掌握情况,提高患者血糖达标率。