北京部分汉族男性维生素D受体基因Fok Ⅰ多态性与骨密度的关系

背景：骨质疏松症是受遗传和环境因素共同作用的多因子复杂疾病。维生素D受体基因多态性被认为是调控骨量的重要遗传因素,但在不同种族人群中的研究结果仍存在争议。 目的：观察维生素D受体基因Fok Ⅰ多态性与北京地区部分汉族男性骨密度的关系,以探求北京地区男性骨质疏松症的遗传易感性。 设计、时间及地点：随机对照试验,在2004-09/2007-12在解放军第二炮兵总医院内分泌科和解放军总医院老年病研究所分子生物学实验室共同完成。 对象：筛选2004-09/2006-12长期居住北京地区无血缘关系的20~80岁健康汉族男性230人。 方法：用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)分析法检测受试者维生素D受体基因Fok Ⅰ基因型,使用双能X射线吸收测定法检测随机抽取的100例受试者腰椎和髋部的骨密度。 主要观察指标：①受试者年龄、身高、体质量。②受试者维生素D受体基因Fok Ⅰ基因型。③受试者L2~4椎体、股骨颈、大转子及Wards三角部位骨密度。 结果：受试者维生素D受体基因Fok Ⅰ的基因型及基因频率的分布为FF 36.96%,Ff 46.96%,ff 16.08%,符合Hardy-Weinberg定律;校正年龄、体质量、身高和体质量指数对骨密度的影响后,40~59岁年龄段男性ff基因型组骨密度较FF,Ff基因型低(P=0.037)。其余各年龄段、各部位ff基因型组骨密度大多低于FF,Ff基因型,但差异无显著性意义(P > 0.05)。 结论：北京地区汉族男性维生素D受体基因Fok Ⅰ多态性分型与骨密度之间可能存在一定关联,该项检测对筛查男性骨质疏松症高危人群的意义需进一步研究。     

幽门螺杆菌感染与慢性荨麻疹相关性研究

目的 探究幽门螺杆菌感染(Helicobacter pylori,Hp)与慢性荨麻疹(chronic urticaria,CU)相关性,为CU患者提供更有效的诊疗策略.方法 选取2015年6月至2017年12月在柳州市人民医院皮肤科门诊确诊慢性荨麻疹患者290例作为实验组,另选取本院健康体检者310名作为对照组.应用1...     

年龄、季节、性别、种族与呼伦贝尔地区居民25-(OH)D表达水平的相关性

目的 探讨年龄、季节、性别、种族与呼伦贝尔地区居民25-羟基维生素D[25-(OH)D]表达水平的相关性.方法 回顾性分析2017年1月至2019年8月于本院就诊的27534例呼伦贝尔地区居民的临床资料,检测25-(OH)D水平,并根据年龄、季节、性别、种族分为不同群组,比较不同群组间25-(OH)D水平.结果 未成年...     

肠道菌群失调与皮肤科常见结缔组织病相关性概述

【摘要】 越来越多的研究发现,肠道菌群与结缔组织病具有相关性。本文概述肠道菌群的特点及其在结缔组织病中的作用机制,重点阐述肠道菌群失调在红斑狼疮、系统性硬化病、干燥综合征中的相关性、可能作用机制及相关假说。通过益生菌调节肠道菌群失调可作为这些常见结缔组织病的治疗手段之一。     

皮下脂膜炎样T细胞淋巴瘤叠加红斑狼疮病理特征一例

患者男,49岁。因皮下结节9个月余,发热5 d,于2018年11月19日至我院就诊。患者9个月前无明显诱因全身出现多个散在直径2 ~ 5 cm皮下结节,曾于我院行皮损活检,提示“皮下脂膜炎,不除外皮肤T细胞淋巴瘤”,当时未予特殊处理……     

Retrospective study of photodynamic therapy for pulsed dye laser-resistant port-wine stains

Pulsed dye laser-resistant port-wine stains present a therapeutic challenge. The aim of this study was to evaluate the efficacy and safety of photodynamic therapy for treating these lesions. A total of 67 patients with pulsed dye laser-resistant cervicofacial port-wine stains were retrospectively assessed after undergoing photodynamic therapy mediated with a combination of hemoporfin and 532-nm light. For objective evaluation of photodynamic therapy efficacy, first, the colorimetric changes in the port-wine stain lesions were evaluated according to the L*a*b* color coordinate system, then the values of color changes (ΔE) and blanching rate were calculated. For subjective evaluation of improvement, photographs taken before and after photodynamic therapy were evaluated by three independent assessors blindly. Patient satisfaction was also used as a factor in the subjective evaluation. Adverse events were recorded after treatment. The median ΔE decreased significantly from the pretreatment value of 13.42 to 9.90 at the 2-month follow up (P < 0.001). The median blanching rate of port-wine stains was 28.04% after an average of 1.21 sessions of photodynamic therapy. Based on the overall visual assessment, 46.2% patients showed excellent or good levels of improvement (>50% color blanching). Adverse events were minimal, transient and self-limiting. In conclusion, photodynamic therapy serves as an alternative means to treat pulsed dye laser-resistant port-wine stains.     

血清维生素D水平与儿童特应性皮炎的相关性分析

目的研究儿童血清中维生素D与特应性皮炎(AD)积分指数评分(SCORAD)之间的关系,同时分析血常规的嗜酸粒细胞百分比及嗜酸粒细胞绝对值、血清总IgE、血清钙离子及身高、体质量、身体质量指数与SCORAD之间的关系。方法选取2016年6月—2016年12月于我院诊治的44例AD患儿的临床资料作为观察组,并收集同时期相同数量健康儿童的资料作为对照组。观察组用SCORAD进行评分,观察组及对照组均测定其血常规、血清总IgE、血清钙离子和血清维生素D,并根据体质量、身高计算出身体质量指数(BMI),由同1名医师对患儿进行SCORAD计算。结果观察组中血清维生素D与SCORAD呈负相关(r=-0.305,P=0.044),与钙离子浓度呈正相关(r=0.366,P=0.015)。另外,SCORAD与嗜酸粒细胞百分比、绝对值及总IgE值呈正相关(r1=0.355,r2=0.398,r3=0.397;P1=0.018,P2=0.008,P3=0.008)。观察组的25(OH)D浓度低于对照组(Z=-2.028,P=0.043),嗜酸粒细胞百分比及绝对值、总IgE和钙离子浓度高于对照组(Z1=-3.965,Z2=-4.112,Z3=-2.479;P1<0.001,P2<0.001,P3=0.013)。结论儿童25(OH)维生素D可能与SCORAD有负相关。     

准长脉宽1064 nm Nd:YAG激光联合超分子水杨酸治疗面部轻中度痤疮的临床疗效观察

目的探讨准长脉宽1064 nm Nd:YAG激光联合超分子水杨酸治疗面部轻中度痤疮的临床疗效。方法将99例患者随机平均分为激光和水杨酸的联合治疗组,水杨酸治疗组,激光治疗组。3组均治疗2周1次,总共治疗5次,比较3组患者临床疗效。结果第3次治疗后联合治疗组有效率明显高于激光治疗组,差异有统计学意义(P<0.05)。除第一次治疗外,后续治疗联合治疗组有效率均高于水杨酸治疗组,差异有统计学意义(P<0.05),激光治疗组与水杨酸治疗组有效率比较差异无统计学意义(P>0.05)。结论准长脉宽1064 nm Nd:YAG激光联合超分子水杨酸治疗面部轻中度痤疮起效快,效果显著,安全性高,复发率低,医患满意度高。     

针对肝郁化热证的证候类中药新药临床评价研究

目的:为探讨证候类中药新药的临床评价方法,采用证病结合的临床研究模式,针对肝郁化热证,选择具有该证候的偏头痛、非器质性失眠和广泛性焦虑障碍患者,评价清肝解郁方对患者证候及生命质量的改善情况。方法:选取2013年07月至2014年12月北京中医药大学东直门医院收治的符合入组标准的患者180例,采用分层随机、阳性药对照的临床试验设计,将患者随机分为观察组和对照组,观察组采用清肝解郁方免煎颗粒进行治疗,偏头痛对照组患者使用天舒胶囊,失眠或焦虑对照组患者使用乌灵胶囊进行治疗。应用《肝郁化热证证候评价量表》对2组患者的证候改善情况进行评价,并采用SF-36生命质量量表评价2组患者生命质量。结果:1)经治疗后,2组患者肝郁化热证证候评分均呈下降趋势,治疗前后证候评分差值的组间比较,差异有统计学意义(P0.05),观察组下降较对照组更明显;2)治疗前后,2组患者生命质量各维度得分均较治疗前提高,其中社会功能(SF)维度组间比较,差异有统计学意义(P0.05),观察组改善更明显;3)肝郁化热证证候评分变化与生命质量各维度得分变化的相关性分析提示:生理功能(PF)、生理职能(RP)、精力(VT)、社会功能(SF)、情感职能(RE)与肝郁化热证证候评分变化呈显著正相关。结论:清肝解郁方可改善偏头痛、非器质性失眠及广泛性焦虑障碍患者的肝郁化热证证候,并可提高患者的生命质量。     

Clinicopathological features of mycosis fungoides in patients exposed to Agent Orange during the Vietnam War

There are no reports on the clinicopathological features of mycosis fungoides (MF) among veterans exposed to Agent Orange, one of the herbicides used during the Vietnam War. To evaluate the clinical, histopathological and genotypic findings of Vietnam War veterans with MF and a positive history of exposure to Agent Orange, we performed a comparative clinicopathological study between MF patients with a history of Agent Orange exposure and those without a history of Agent Orange exposure. Twelve Vietnam War veterans with MF were identified. The mean interval from Agent Orange exposure to diagnosis was 24.5 years (range, 9–35). Skin lesions were significantly present on exposed and unexposed areas. Most patients (75%) experienced pruritus (mean visual analog scale score of 6.7). MF was manifested by plaques in 10 patients and by lichenification in five. Histopathological features of most cases were consistent with MF. Biopsy specimens also demonstrated irregular acanthosis (66.7%). In the comparative study, MF patients with a history of Agent Orange exposure differed significantly from those without exposure to Agent Orange in demographic and clinical characteristics. In addition, patients with exposure had an increased tendency for lesions in the exposed area. Notably, our patients showed a higher frequency (33.3%) of mycosis fungoides palmaris et plantaris than in previous studies. Histologically, irregular acanthosis was more frequently observed than ordinary MF. Our results indicate that dermatologists should pay close attention to these clinicopathological differences. Careful assessment of history of exposure to defoliants is warranted in some cases suspicious for MF.