早期电针干预对SAMP8小鼠学习记忆能力和海马磷酸化Tau蛋白水平的影响

目的:探讨早期电针"百会""大椎""肾俞"穴对快速老化小鼠(SAMP8小鼠)学习记忆能力和海马磷酸化Tau蛋白表达的影响,为临床电针治疗阿尔茨海默病(AD)时间点的选择提供参考。方法:将36只3月龄SAMP8小鼠随机分为模型组、3月龄电针组、9月龄电针组,每组12只;以12只同龄正常老化SAMR1小鼠作为空白对照组。3月龄电针组及9月龄电针组分别于小鼠3月龄及9月龄时予电针"百会""大椎""肾俞"穴治疗(连续波,2 Hz,1.5~2 mA),20 min/次,每日1次,8 d为一疗程,疗程间隔2 d,共治疗3个疗程。每组小鼠在水迷宫检测学习记忆能力结束后统一于10月龄取材;免疫组织化学法、免疫蛋白印迹法(Western blot)检测小鼠海马磷酸化Tau蛋白的表达,实时荧光定量PCR法检测小鼠海马Tau mRNA表达。结果:与空白对照组比较,模型组小鼠逃避潜伏期明显延长(P<0.01),原平台象限停留时间较短,跨越平台次数减少(P<0.01),海马磷酸化Tau蛋白及Tau mRNA表达较高(P<0.01);与模型组比较,3月龄电针组及9月龄电针组小鼠逃避潜伏期缩短(P<0.05),原平台象限停留时间延长,跨越平台次数增多(P<0.05),小鼠海马磷酸化Tau蛋白及Tau mRNA表达降低(P<0.05);与9月龄电针组比较,3月龄电针组小鼠逃避潜伏期缩短(P<0.05),原平台象限停留时间延长,跨越平台次数增多(P<0.05),海马磷酸化Tau蛋白及Tau mRNA表达降低(P<0.01)。结论:早期电针干预能更有效地改善SAMP8小鼠学习记忆能力并降低其海马磷酸化Tau蛋白水平。     

Long-term changes in dietary intake and its association with eating-related problems after gastric bypass in adolescents

BackgroundRoux-en-Y gastric bypass (RYGB) surgery is an established, effective treatment for severe adolescent obesity. Long-term dietary intake and the relationship to eating-related problems are scarcely evaluated in this population.ObjectivesAssess changes in dietary intake in adolescents after RYGB and explore associations between dietary intake and eating-related problems.Setting: Multicenter study in Swedish university hospitals.MethodDiet history, binge eating scale (BES), and Three-Factor Eating Questionnaire were assessed preoperatively and 1, 2, and 5 years after RYGB in 85 adolescents (67% female) aged 16.5 ± 1.2 years with a body mass index (BMI) of 45.5 ± 6.0 kg/m² and compared with control individuals at 5 years.ResultsFive-year BMI change was –28.6% ± 12.7% versus +9.9% ± 18.9% in RYGB patients versus control individuals (P < .001). Through 5 years, RYGB adolescents reported reduced energy intake, portion size of cooked meals at dinner, and milk/yoghurt consumption (P < .01). The BES scores were 9.3 ± 8.3 versus 13.4 ± 10.5 in RYGB patients versus control individuals (P = .04). Association between BES score and energy intake was stronger in control individuals (r = .27 versus r = .62 in RYGB patients versus control individuals, P < .001). At 5 years, lower energy intake was associated with greater BMI loss in all adolescents (r = .33, P < .001). Higher scores in BES and uncontrolled and emotional eating were associated with higher energy intake, cooked meals, candies/chocolates, cakes/cookies, desserts, and sugary drinks (r > .23, P < .04) and lower intake of fruits/berries (r = –.32, P = .044). A higher score in cognitive restraint was associated with a higher intake of cereals and fruits/berries (r > .22, P < .05) and a lower intake of sugary drinks (r = –.24, P < .03).ConclusionTo support optimization of long-term outcomes in adolescent RYGB patients, it is important to provide management strategies to reduce energy intake. Monitoring eating-related problems could identify potential individuals at risk of poor weight loss and to initiate treatment interventions.     

实体化创伤中心建设提升严重创伤救治能力

为明确实体化创伤中心建设对提升严重创伤救治能力的作用,笔者以兴义市创伤中心实体化建设后所取得的初步成效,从院内多学科团队建设及核心能力维护、创伤救治流程优化、创伤时间节点质量控制与持续改进等方面进行介绍,为实体化创伤中心建设提供借鉴和参考。     

Reflective practice in the teaching of communication skills

Reflective practice is encouraged in medical education in general and in teaching communication skills in particular to develop into a reflective practitioner. However, the term is complex to understand and multidimensional thus challenging to grasp, describe and teach. Furthermore, though used frequently little guidance exists on how to promote reflective ability in teaching communication skills. This paper builds on a keynote address delivered at the International Conference of Communication in Healthcare (ICCH 2019) and is based on the vast literature on reflection and the author’s personal experience as a researcher and educator. It discusses the components of reflective practice as well as exemplifies the importance of reflective practice to student’s capability to learn communication skills.     

八段锦干预心力衰竭患者疗效的Meta分析

目的:评估八段锦干预心力衰竭的疗效及安全性。方法:搜索中国知网数据库、中国生物医学文献数据库、万方数据库以及维普中文全文数据库；PubMed、Cochrane Library、web of science、EMBASE。检索时间为建库至2019年2月28日。对纳入的随机对照试验（RCT)用Cochrane手册进行偏倚风险评估，用Rev Man 5.3软件进行Meta分析。结果:纳入6篇文献，7个随机对照研究，共计543例心力衰竭患者。与对照组比较，观察组MLHFQ减少[MD=10.88,95%CI=（8.22，13.54）]，6分钟步行试验(6MWT)提高[MD=107.81,95%CI=（75.83，139.78）]，左心室射血分数(LVEF)提高[MD=3.62,95%CI=（2.04，5.19）]，B型利钠肽(BNP)降低[MD=73.32,95%CI=（45.12，101.53）]，临床疗效[OR=4.00,95%CI=（1.35，11.83）]，中医证候评分[OR=4.57,95%CI=（2.03，10.31）]。结论:八段锦可改善心力衰竭患者的心功能，用于稳定期的康复治疗。     

多发性骨髓瘤患者浆细胞免疫表型特点及其临床意义研究

目的：观察多发性骨髓瘤（MM）患者骨髓中浆细胞免疫表型特点，及其与患者临床预后的相关性。方法：收集35例MM患者资料，骨髓涂片及切片分别经瑞氏-吉姆萨和HE染色后，观察分析骨髓细胞形态及病理学特点。同时，取患者骨髓或外周血分别进行流式细胞术检测及相关实验室检查。结果：MM患者骨髓浆细胞不仅数量明显增多，且形态明显异常，切片中浆细胞分布类型包括塞实型16例（45.71%），结节型14例（40.00%）和间质型5例（14.29%）。MM患者中出现血清LDH、β2-MG、Cr和BUN等检测指标升高的比例分别占80%、85.71%、62.86%和60%。MM患者浆细胞CD38、CD138均呈阳性表达，CD56、CD200、CD117和CD28阳性患者比例分别为65.71%、94.29%、60%和54.29%，CD20、CD81、CD33、CD27及CD13阳性患者比例分别为37.14%、42.86%、28.57%、57.14%和34.29%，而CD19及CD45阳性患者比例分别为22.86%和31.42%，且Igκ或Igλ链表达缺失呈单克隆增生。其中CD27和CD28的表达情况与MM患者预后密切相关，浆细胞CD27表达缺失及CD28阳性表达的患者5年总生存率较低（P < 0.05）。结论：MM患者骨髓中浆细胞免疫表型明显异常，其中CD27和CD28的表达与患者病情进展和临床预后具有显著相关性，因此免疫表型检测在MM患者临床诊断、治疗监测中具有重要意义。