140例住院精神病患者苯二氮(艹卓)类药物使用情况分析

目的:了解我院住院精神病患者苯二氮(艹卓)类药物(BDZ)使用情况.方法:填写BDZ使用监测表,对586例住院精神病患者BDZ使用情况进行回顾性分析.结果:住院精神病患者合并使用BDZ占23.9%,其中发生依赖为32.1%.BDZ用于镇静催眠占82.9%;使用种类以氯硝安定为多,占74.3%;BDZ合并抗精神病药物(APD)以利培酮为多,占25.7%.结论:住院精神病患者BDZ的用药剂量及用药原因是合理的,但不宜长期使用.     

安徽亳州板蓝根种质资源的调查研究

目的 :为制定板蓝根规范化种植的操作规程提供依据。方法 :进行安徽亳州板蓝根的种质资源调查和种子染色体的鉴定研究。结果 :安徽亳州板蓝根种质资源有四倍体菘蓝和二倍体菘蓝。结论 :确定二倍体菘蓝为板蓝根规范化种植的种质资源。     

茶树油的提取工艺优化试验研究

目的:以茶树油提取率为考察指标,研究茶树油的提取工艺.方法:采用正交试验进行优选,气相色谱法测定4-羟基萜烯含量.结果:影响茶树油提取率的主要因素是提取时间,对茶树油的提取有显著影响;其次是加水量,对茶树油的提取有较大影响;浸泡时间的影响最小.各因素对4-羟基萜烯含量无影响.结论:最佳的提取工艺为浸泡时间2 h,提取时间6 h,加水800 ml.     

抗焦虑药物对束缚应激大鼠作用的分子机制探索

目的：为了探讨抗焦虑药物治疗焦虑症状的分子作用机制。方法：建立大鼠束缚应激模型，观察抗焦虑药物帕罗西汀用药组大鼠的旷场行为和下丘脑c-fos的表达。结果：与正常对照组比较，应激大鼠在旷场中的穿行格数和直立次数明显增加，下丘脑室旁核c-fos表达显著增加，而帕罗西汀用药组能减少大鼠在旷场中的活动和下丘脑室旁核c-fos表达。结论：帕罗西汀对束缚应激大鼠脑保护作用可能与下调c-fos基因表达有关。     

[THIS ARTICLE HAS BEEN RETRACTED]Vitreous function and intervention of it with vitrectomy and other modalities

The vitreous body, the largest intraocular component, plays a key role in eye development, refraction, cell barrier function, oxygen metabolism and the pathogenesis of assorted diseases. Age, refraction and systemic diseases can cause vitreous metabolic abnormalities. With the continuous development of vitrectomy techniques and equipment, vitreous injections and vitrectomies have increased over the recent decades. However, the normal oxygen tension gradient in the vitreous helps to protect the lens and anterior chamber angle from oxidative stress damage, whereas the increased vitreous oxygen tension around lens and the trabecular meshwork after vitrectomy may lead to postoperative nuclear cataract and a high incidence of open angle glaucoma. As a conventional procedure, scleral buckling holds several advantages over vitrectomy in selected cases. This review raises concerns regarding the function of the vitreous, and encourages conducting vitreous interventions prudently.     

高位复杂性肛瘘的治疗进展

阐述了在治疗高位复杂性肛瘘方面的新方法和技术，介绍了改良的挂线术、保留括约肌的术式和封堵注入术的治疗方法和效果。改良的挂线引流术式仍是治疗高位复杂性肛瘘的主要方法；新近出现的保留括约肌的手术方法为减少肛门功能失禁、彻底治疗高位复杂性肛瘘提供了可能；封堵填充术因其操作简单、较好的治愈率等特点正成为非手术治疗的主要方法。     

Vitiligo in children and adolescents: association with thyroid dysfunction

Background The clinical characteristics of vitiligo in children and adolescents with an emphasis on thyroid dysfunction have only been reported in a few studies. Objective The purpose of this study was to examine the characteristics of children and adolescents with vitiligo and compare the incidence of thyroid dysfunction between them and controls without vitiligo at the same age. Methods A retrospective analysis of 324 Korean children and adolescents with vitiligo was performed. The results of thyroid function screening tests in them (n = 254) were compared with controls (n = 122). Results Of the total 324 children and adolescents with vitiligo, vitiligo vulgaris was the most common type (42.3%) and the most commonly involved site was the face (54.6%). A total of 15 of 254 (5.9%) patients screened for thyroid function were diagnosed with thyroid disease (four had Hashimoto’s thyroiditis; two, Graves’ disease; seven, subclinical hypothyroidism; and two, subclinical hyperthyroidism). None of the 50 patients with segmental vitiligo showed any thyroid dysfunction (P = 0.047). There was no significant difference in the incidence of thyroid disease between children and adolescents with vitiligo and the control group, in which seven of 122 (5.7%) showed thyroid dysfunction. Conclusion In this study, we demonstrated the characteristics of children and adolescents with vitiligo and also observed no significant difference in the incidence of thyroid disease between children and adolescents with vitiligo and the control group.     

Inhibition of Erythroid Differentiation of Human Leukemia K562 Cells by N-acetylcysteine and Ascorbic Acid through Downregulation of ROS

正This study investigated the effects of N-acetylcysteine(NAC)and ascorbic acid(AA)on hemin-induced K562 cell erythroid differentiation and the role of reactive oxygen species(ROS)in this process.Hemin increased ROS levels in a concentration-dependent manner,whereas NAC and AA had opposite effects.Both NAC and AA eliminated transient increased ROS levels after hemin treatment,inhibited hemin-induced