T cell–intrinsic prostaglandin E2-EP2/EP4 signaling is critical in pathogenic TH17 cell–driven inflammation

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臀位外倒转术对足月单胎臀位产妇外倒转成功率及妊娠结局的影响

目的探讨臀位外倒转术对足月单胎臀位产妇外倒转成功率及妊娠结局的影响。方法选择2017年1月至2019年4月我院收治的60例足月单胎臀位产妇,随机分为两组各30例。研究组行臀位外倒转术,对照组行膝胸卧位。对比两组的臀位矫正成功率、分娩方式及并发症情况。结果研究组的臀位矫正成功率为73.33%,高于对照组的43.33%(P<0.05)。研究组的阴道分娩率为56.67%,高于对照组的20.00%(P<0.05)。研究组的胎膜早破发生率为6.67%,低于对照组的30.00%(P<0.05);两组的脐带绕颈、新生儿窒息发生率比较差异无统计学意义(P>0.05)。结论臀位外倒转术可有效提高足月单胎产妇臀位矫正成功率,降低剖宫产率,并减少并发症的发生,安全性较高。     

2011～2015年合肥市手足口病流行病学及病原学特征分析

目的 分析2011 ～2015年合肥市手足口病的流行病学和病原学特征,为手足口病的防控工作提供参考.方法 手足口病发病资料来自2011～ 2015年传染病监测报告信息管理系统,病原学检测数据来自监测点和现场调查采样,统计方法运用描述性分析和x2检验,对粪便标本采用RT-PCR扩增基因序列测定,并利用生物学软件分析.结果 手足口病年平均发病率196.11/10万,发病高峰在4～6月,发病年龄以5岁以下儿童为主,占总发病人数的94.45％;肠道病毒71型(EV71)为优势株,感染机体引起重症手足口病风险较大.进化树分析表明合肥市EV71属于C4a亚型.幼儿园健康儿童病毒携带率6.80％,均为其它肠道病毒.结论 合肥市手足口病发病率较高,EV71是优势株,为C4a亚型,与中国大陆优势毒株流行趋势一致.在做好全面防控的同时,应重点做好5岁以下儿童的防控工作.     

果胶铋对雷尼替丁在人体内药物动力学的影响

目的:研究果胶铋对雷尼替丁的药物动力学的影响.方法:6名健康男性随机分两组交叉单次po雷尼替了胶囊及雷尼替丁和果胶铋胶囊后.采用HPLC测定雷尼替丁的血药浓度,计算药物动力学参数.结果:单用雷尼替丁胶囊和合用果胶铋组T_(1/2β)分别为(1.79±0.32)和(2.04±0.40)h,t_(max)分别为(2.34±0.46)和(2.70±0.49)h,c_(max)分别为(0.93±0.27)和(0.55±0.26)mg/L.AUC_(0-∞)分别为(4.78±1.55)和(3.11±1.57)[(mg/L)·h].经数理统计学分析.两组c_(max)(P0.05).同服果胶铋时雷尼替丁的生物利用度降低约40%.结论:雷尼替丁应尽量避免与果胶铋同时服用.     

Regulatory effect of cytokine production in asthma patients by SOOJI CHIM (Koryo Hand Acupuncture Therapy)

Acupuncture has become quite familiar to many Koreans not only for pain, but also for many other health problems, both in acute and chronic conditions. Actually, acupuncture is a therapeutic technique that is part of a larger system of traditional oriental medicine. There are several styles of acupuncture. We investigated the regulatory effects of cytokine production in peripheral blood of asthma patients (AP) by SOOJI CHIM (Koryo Hand Acupuncture Therapy, KHT). Clinical signs of asthma disappeared markedly by KHT. The mean interleukin (IL)-2 and IL-6 plasma levels were lower in the AP group than in the normal group, whereas the mean interferon (IFN)-gamma, IL-4, and tumor necrosis factor (TNF)-alpha levels were higher in the AP group. Plasma IFN-gamma and IL-2 levels derived from T helper (Th)1 cells and IL-4 levels derived from Th2 cells were elevated in the AP group by KHT. Especially, plasma IL-6 levels derived from Th2 cells were elevated significantly in the AP group by KHT. Reduced plasma levels of TNF-alpha were observed in the AP group by KHT. Plasma IgE levels were also measured but there were no significant differences from each other. During the KHT, there were no other adverse effects. These results indicate that KHT has a good asthma treatment effect, and that its action may be due to the regulation of cytokine production.     

微量注射6-OHDA损毁大鼠黑质对丘脑底核神经元电活动影响的研究

为了观察黑质内注射 6-OHDA损毁黑质多巴胺 (DA)能神经元后大鼠丘脑底核 (STN)神经元自发放电活动的变化 ,以探讨 STN神经元功能紊乱与帕金森病 (PD)运动障碍的关系 ,选择单侧黑质致密部 (SNC)微量注射 6-OHDA方法建立 PD大鼠模型 ,采用微电极细胞外记录神经元放电 ,观察对照组大鼠和 PD模型大鼠不同时期的 STN神经元放电频率及放电形式的变化。结果显示 ,对照组大鼠 STN神经元放电频率平均为 11.16± 1.5 2 Hz,其放电形式主要表现为规则型 (3 9/4 4) ,其次为混合型 (3 /4 4)和爆发型 (2 /4 4) ;而 PD模型大鼠 (SNC损毁 )不同时期的 STN神经元的放电形式发生明显变化 ,呈爆发型放电的神经元数较对照组大鼠明显增多 (P<0 .0 5和 P<0 .0 1) ;平均放电频率较对照组大鼠明显升高 (P<0 .0 5和 P<0 .0 1)。     

Recent studies on scrub typhus and Rickettsia tsutsugamushi in Shandong Province - China

In an outbreak of scrub typhus occurred 138 cases in 1986 in Menying County of Shandong Province of China which were confirmed through clinical and epidemiological surveys and laboratory techniques. In the endemic areas, the predominant species of mite is Leptotrombidium (L.) scutelarae and the predominat rodent is Apodemus agrarius, which may be the main vector and reservoir. Several strains of Rickettsia tsutsugamushi (R.T.) were obtained from mites, wild mice and patients, of which 3 human strains (SDH871, SDH875, SDH878) cause illness and some deaths in mice, except SDH871. The LD50 of SDH878 is 3.4. Cross-protection was observed among the strains, SDH871, SDH878, and prototype strain karp. Also the antibodies in mucoid peritoneal fluid were detectable with high titer. Shandong R.T. belongs to the serotype of the Gilliam strain.Presented at the 4th International Symposium on Rickettsiae and Rickettsial Diseases, Pietany, C.S.F.R., 1–6 October, 1990.     

Comparison of Shallow and Deep Learning Methods on Classifying the Regional Pattern of Diffuse Lung Disease

This study aimed to compare shallow and deep learning of classifying the patterns of interstitial lung diseases (ILDs). Using high-resolution computed tomography images, two experienced radiologists marked 1200 regions of interest (ROIs), in which 600 ROIs were each acquired using a GE or Siemens scanner and each group of 600 ROIs consisted of 100 ROIs for subregions that included normal and five regional pulmonary disease patterns (ground-glass opacity, consolidation, reticular opacity, emphysema, and honeycombing). We employed the convolution neural network (CNN) with six learnable layers that consisted of four convolution layers and two fully connected layers. The classification results were compared with the results classified by a shallow learning of a support vector machine (SVM). The CNN classifier showed significantly better performance for accuracy compared with that of the SVM classifier by 6–9%. As the convolution layer increases, the classification accuracy of the CNN showed better performance from 81.27 to 95.12%. Especially in the cases showing pathological ambiguity such as between normal and emphysema cases or between honeycombing and reticular opacity cases, the increment of the convolution layer greatly drops the misclassification rate between each case. Conclusively, the CNN classifier showed significantly greater accuracy than the SVM classifier, and the results implied structural characteristics that are inherent to the specific ILD patterns.     

影响体外受精-胚胎移植和胞质内精子注射后早期妊娠结局因素的探讨

目的 :探讨影响体外受精 -胚胎移植 (IVF -ET)和胞质内精子注射 (ICSI)后早期妊娠结局的因素。方法 :测定IVF和ICSI胚胎移植 (ET) 2周后尿妊娠试验阳性 110例的当日血清绒毛膜促性腺激素 (hCG)值 ,于ET后 5周行B型超声检查 ,并对早期妊娠结局进行分析。结果 :早期妊娠 110例中 30例流产 ,除外 3例系减胎失败所致 ,流产率为2 5.2 % (2 7 10 7) ,其中IVF57例 ,流产 18例 ,除外 2例系减胎失败引起 ,流产率占 2 9.1%(16 55) ;ICSI53例 ,流产 12例 ,其中 1例因减胎流产 ,流产率占 2 1.2 % (11 52 ) ,两组流产率差异无显著性 (P >0 .0 5)。妊娠组与流产组的年龄和不孕时间差异有显著性 (P <0 .0 5) ,妊娠组血hCG值显著高于流产组者 (P <0 .0 1)。结论 :IVF—ET和ICSI后妊娠的早期流产率无明显区别 ,患者的不孕年龄和时间以及血hCG值与早期妊娠的结局有关