Efficacy of non-ablative fractional 1440-nm laser therapy for treatment of facial acne scars in patients with rosacea: a prospective,interventional study

Lasers in Medical Science - Acne scarring is one of the most common facial skin disorders. The appropriate treatments for acne scars in patients with rosacea have not been studied. This study was...     

Comparison of a fractional 2940-nm Er:YAG laser and 5% amorolfine lacquer combination therapy versus a 5% amorolfine lacquer monotherapy for the treatment of onychomycosis: a randomized controlled trial

Lasers in Medical Science - Onychomycosis is a fungal infection of the nail. The aim of this randomized controlled clinical trial was to compare the efficacy of 2940-nm Er:YAG laser treatment...     

Comparative study of different transplantation methods of adipose tissue-derived stem cells in the treatment of erectile dysfunction caused by cavernous nerve injury

We aimed to compare intracavernosal injection (ICI), tail vein injection (IV), and periprostatic injection (PPI) of adipose-derived stem cells (ADSCs) for their ability to improve erectile function in cavernous nerve injury-induced erectile dysfunction (CNIED) rats and to explore the possible mechanism. Eighty-four male SD rats were divided into the sham group (n = 6), BCNI group (bilateral CN crush injury, n = 6), PBS-ICI group (n = 6), PBS-IV group (n = 6), PBS-PPI group (n = 6), ADSC-ICI group (n = 18), ADSC-IV group (n = 18) and ADSC-PPI group (n = 18). ADSCs were labelled with 5-ethynyl-2′-deoxyuridine (EdU), and six rats each in the ADSC-ICI group, ADSC-IV group, and ADSC-PPI group were sacrificed 2, 7, and 28 days after injection. EdU-labelled ADSCs were tracked by immunofluorescence staining. The intracavernosal pressure (ICP)/mean arterial pressure (MAP) ratio, neuronal nitric oxide synthase (nNOS)-positive nerve fibres in the dorsal penile nerve and the smooth muscle/collagen ratio in the cavernosum between groups were also evaluated. ADSCs can significantly improve erectile function through ICI or IV. The two are similar in efficacy and superior to PPI. The mechanism may be that after CN injury, ADSCs are recruited to around the MPG and secrete a variety of neurotrophic factors that promote the repair of the CN, thereby improving erectile function.     

TLR9 Deficiency in B Cells Promotes Immune Tolerance via Interleukin-10 in a Type 1 Diabetes Mouse Model

Toll-like receptor 9 (TLR9) is highly expressed in B cells, and B cells are important in the pathogenesis of type 1 diabetes (T1D) development. However, the intrinsic effect of TLR9 in B cells on β-cell autoimmunity is not known. To fill this knowledge gap, we generated NOD mice with a B-cell–specific deficiency of TLR9 (TLR9^fl/fl/CD19-Cre+ NOD). The B-cell–specific deletion of TLR9 resulted in near-complete protection from T1D development. Diabetes protection was accompanied by an increased proportion of interleukin-10 (IL-10)–producing B cells. We also found that TLR9-deficient B cells were hyporesponsive to both innate and adaptive immune stimuli. This suggested that TLR9 in B cells modulates T1D susceptibility in NOD mice by changing the frequency and function of IL-10–producing B cells. Molecular analysis revealed a network of TLR9 with matrix metalloproteinases, tissue inhibitor of metalloproteinase-1, and CD40, all of which are interconnected with IL-10. Our study has highlighted an important connection of an innate immune molecule in B cells to the immunopathogenesis of T1D. Thus, targeting the TLR9 pathway, specifically in B cells, may provide a novel therapeutic strategy for T1D treatment.     

我国女性性工作者领域社会组织参与艾滋病防治项目管理能力建设需求研究

目的 了解为女性性工作者（FSW）提供艾滋病防治服务的社会组织项目管理能力建设需求。方法 向2017-2018年参与国家艾滋病防治基金项目的社会组织负责人开展问卷调查及访谈,结合基金项目管理信息系统相关数据,利用Excel 2016软件和SPSS 25.0软件整理分析社会组织的分布与基金获得情况,以及社会组织对项目管理能力的需求。结果 2017-2018年参与执行基金FSW项目的社会组织共184个,完成问卷调查的社会组织156个,主要集中在西部地区（44.0%,81/184）,以四川省、广西壮族自治区和云南省居多;东部地区获得的基金支持最多;社会组织对项目数据收集及分析利用的需求最高,占68.6%（107/156）,其次是项目风险分析应对及质控,占64.1%（100/156）;社会组织负责人学历对项目计划管理和项目财务管理能力建设需求的差异有统计学意义（χ²=5.78,P=0.016;χ²=8.99,P=0.003）。结论 当前我国FSW领域的社会组织数量和基金获得比例的分布,与异性性传播的艾滋病疫情分布不一致。仍需继续鼓励、引导扶持社会组织的发展资金;结合社会组织对能力建设的需求针对性的制定项目能力建设计划。     

基于双链特异性核酸酶触发滚环扩增的microRNA-21太赫兹超材料传感方法的构建

目的:构建一种太赫兹(THz)超材料传感方法用于microRNA-21(miRNA-21)的信号放大检测。方法:首先构建THz超材料传感方法,并用聚丙烯酰胺凝胶电泳及zeta电位验证方法的可行性;对传感器检测条件进行优化之后,对不同浓度的miRNA-21以及其他不同的miRNAs进行检测,并与其他microRNA检测方法进行比较;最后,对该传感器的回收率进行了评价。结果:在最优实验条件下,通过双链特异性核酸酶(DSN)循环识别与滚环扩增(RCA)的双重信号放大策略,该THz超材料传感器对靶标miRNA-21的响应范围为10 fmol/L至10 nmol/L,检测限为8.49 fmol/L。并且该传感器具有较好的特异性,具备了从多种miRNAs中识别靶标miRNA-21的能力,并且在商业化人血清样本中的回收率可达94.33%到115.33%。结论:该THz传感器可以实现靶标miRNA-21的高灵敏、高特异性检测,具备了在miRNA相关疾病无标记诊断与早期预警的潜力。     

微压传感式毛细血管测压仪

使用自制的微压传感式设备在显微镜下测量甲襞毛细血管压，传感器能精确测出毛细血管血流受阻时的压力，并可自动调零、自动显示和打印。临床使用证明其数据可靠，精确度高且无创，在使用中配以电子半微量天平，保证了仪器的精度、且操作简易，适于临床，优于国外使用的有创性微管插入测压法。     

心理社会因素在糖尿病发生过程中的作用及机理研究 Ⅳ.Ⅱ型糖尿病发生的危险因素分析

目的：分析影响人类Ⅱ型糖尿病发生的危险因素，比较心理社会因素及生物因素的影响程度。方法：对１３１名糖耐量低减和９１名糖耐量正常者平均追踪１８个月，对影响血糖变化和发生糖尿病的人群的社会心理因素及某些生理因素进行Ｌｏｇｉｓｔｉｃ回归分析和相关分析。结果：在对正常转糖耐量低减的回归分析中，年龄和体重指数的影响最大；但在正常和糖耐量低减转糖尿病的两个回归分析中，生活事件强度的贡献量均排在第１位。结论：心理社会因素在一定的生理条件下对糖尿病的发生起作用，其环节可能在糖耐量低减转糖尿病过程。     

肝移植后乙肝复发的预防和治疗

目的　探讨原位肝移植治疗乙型肝炎相关疾病的效果及Lamivudine在防治肝移植后乙肝复发中的作用。方法　 10例患者接受了原位肝移植 ,其中 9例男性为乙肝患者 ,1例女性为肝癌患者 ,术前无乙肝感染。 9例乙肝患者中 ,6例并有不同程度的肝性脑病 ,1例并肝肾综合征 ,1例并上消化道大出血。 9例乙肝中 ,7例服用Lamivudine预防术后乙肝复发。结果　 8例存活 2 - 12个月 ,2例死亡。存活的 8例中 ,7例为乙肝患者 ,仅 1例术后 6个月出现HBsAg( ) ,但全部均肝功能良好 ;另 1例为肝癌患者 ,术后 6个月出现乙肝。死亡的 2例中 ,1例为术后乙肝复发暴发性肝功能衰竭所致 ,另 1例死于术后多器官功能衰竭。结论　原位肝移植加Lamivudine是治疗乙肝和肝细胞癌病例的有效方法。Lamivudine在观察期内可预防乙肝移植后乙肝复发。     

Prevention and treatment of hepatitis B relapse after liver transplantation

Ｏｒｔｈｏｔｏｐｉｃｌｉｖｅｒｔｒａｎｓｐｌａｎｔａｔｉｏｎ (ＯＬＴ)ｈａｓｂｅｅｎｔｈｅｍｏｓｔｅｆｆｅｃｔｉｖｅｍｅｔｈｏｄｆｏｒｅｎｄｓｔａｇｅｈｅｐａｔｉｃｄｉｓｅａｓｅ ＨｅｐａｔｉｔｉｓＢ(ＨＢ)ｒｅｌａｔｅｄｌｉｖｅｒｄｉｓｅａｓｅｓｈａｖｅｂｅｅｎｔｈｅｍａｉｎｉｎｄｉｃａｔｉｏｎｏｆＯＬＴｂｕｔｔｈｅＨＢｒｅｃｕｒｒｅｎｃｅｒａｔｅａｆｔｅｒＯＬＴｒｅａｃｈｅｓ 80 %ｏｒｍｏｒｅ,ｌｅａｄｉｎｇｔｏｈｅｐａｔｉｃｆａｉｌｕｒｅ ,ｒｅｔｒａｎｓｐｌａｎｔａｔｉｏｎｏｒｅｖｅｎｄｅａｔｈ…