Oral microbiota in the oral-genitourinary axis:identifying periodontitis as a potential risk of genitourinary cancers

Periodontitis has been proposed as a novel risk factor of genitourinary cancers:although periodontitis and genitourinary cancers are two totally distinct types ...     

Greater Adherence to Dietary Guidelines Associated with Reduced Risk of Cardiovascular Diseases in Chinese Patients with Type 2 Diabetes

The evidence regarding the impact of the scores on healthy eating indices on the risk of cardiovascular events among patients with type 2 diabetes (T2D) is limited. As such, in this study, we examined the associations of adherence to the Chinese and American dietary guidelines and the risk of cardiovascular disease (CVD) among Chinese individuals with T2D. We conducted a 1:1 age- and sex-matched case–control study based on a Chinese population. We used a structured questionnaire and a validated 79-item food-frequency questionnaire to collect general information and dietary intake information, and calculated the Chinese Healthy Eating Index (CHEI) and the Healthy Eating Index-2015 (HEI-2015). As participants, we enrolled a total of 419 pairs of hospital-based CVD cases and controls, all of whom had T2D. We found a significant inverse association between diet quality scores on the CHEI and HEI-2015 and the risk of CVD. The adjusted odds ratios (95% confidence interval) per five-score increment were 0.68 (0.61, 0.76) in the CHEI and 0.60 (0.52, 0.70) in the HEI-2015. In stratified analyses, the protective associations remained significant in the subgroups of sex, BMI, smoking status, tea-drinking, hypertension state, dyslipidemia state, T2D duration, and medical nutrition therapy knowledge (all p < 0.05). These findings suggest that a higher CHEI or HEI-2015 score, representing a higher-quality diet relative to the most recent Chinese or American dietary guidelines, was associated with a decreased risk of CVD among Chinese patients with T2D.     

Influence of Varying Tensile Stress on Domain Motion

Magnetic domain motion has been widely studied in the fields of spintronics, nanowires, and thin films. However, there is a lack of such studies on industrial steels, especially for domain motion under the action of varying stress. Understanding domain motion under stress is helpful for the improvement of evaluation accuracy and the establishment of theoretical models of passive, nondestructive testing technology. This paper presents the influence of varying tensile stresses on the magnetic domain motion of silicon steel sheets. Magnetic domain rotation and domain wall displacement were characterized using magnetic domain images, and their motion mechanisms under elastic and plastic stresses are presented. The results show that the domain rotation under stress involves reversible and irreversible changes. The effect of material rearrangement on domain rotation and domain wall displacement after plastic deformation is discussed. Based on the motion mechanism, a threshold stress value (TSV) required for the complete disappearance of the supplementary domains in the elastic range is proposed, enabling the classification of the elastic stress ranges in which the reversible and irreversible domain rotations occur. In addition, the effect of microstructure on TSV is also discussed, and the results show that the regions far away from the grain boundary need larger stresses to complete an irreversible domain rotation. Additionally, the domain width and orientation also affect the TSV. These findings regarding the domain motion mechanism and TSV can help to explain the sequence of domain rotation under stress and modify the stress assessment under dynamic loads in electromagnetic nondestructive evaluation, especially in the magnetic memory method.     

多媒体课件艺术性在医院临床教学中的体现

随着多媒体技术的普及和发展,多媒体课件已成为医学教育改革和实现教学手段现代化的得力手段。文章从多媒体课件的艺术性构图、文字、色彩、视频和声音等几个方面对其在教学中的应用进行了探讨。     

膀胱结石发病正走向高龄化

本文对66例膀胱结石患者的年龄分布及其与局部伴发疾病的关系进行了统计分析,结果表明,膀胱结石占同期尿路结石24.5％,其中小于10岁的儿童患者占总数日9.4％,50岁以上患者占33.3％,伴有局部因素者占42.4％,且以老年性前列腺肥大者居多。提示了我区膀胱结石不发病现状和高龄化趋势。     

被覆自体微粒皮的辐照氟银猪皮移植治疗深度烧伤15例报告

OBJECTIVE: To study the feasibility of using irradiated porcine skin impregnated with fluorine and silver covered by autogenous skin granule graft in the treatment of severe burn injury. METHODS: Autogenous split-thick skin grafts were cut into small pieces (<1 mm3), which were transferred onto the sheet of porcine skin mounted with a layer of Xinnaxing ointment (2 mm in thickness). After eschar removal, the burn wound was covered with the prepared porcine skin, sutured and fixed with small holes at the lower site for drainage. The growth of autogenous granule skin was then observed and the criteria for therapeutic effect evaluation drafted. RESULTS: The layer of Xinnaxing ointment on the the porcine skin improved the adhesion of the autogenous small skin grafts, therefore full use could be made of the donor skin source. In the 15 patients receiving this treatment, the graft-covered area was (12.3+/-3.5) % that of the wound, with the donor-recipient area ratio of 1: (11.0+/-2.7) and subsequent healing time of 27.5+/-5.5 d. Primary healing was achieved in 9 cases, and secondary healing in 6, demonstrating similar clinical effect to that of allo-skin grafting. CONCLUSION: The method is easy and economic, which saves autogenous skin source and produces satisfactory clinical effect.     

腹腔镜联合肾镜液电碎石仪在基层医院胆道结石手术的运用

【摘要】〓目的〓探讨与研究基层医院在胆道结石手术中运用腹腔镜联合肾镜液电碎石仪的可行性与实用性。方法〓选取我院于2013年1月至2014年1月在我院行手术治疗的胆囊结石合并肝内外胆管结石患者53例,均采用腹腔镜联合肾镜探查液电碎石仪治疗术式,通过观察患者手术时间、术中术后胆道出血、术后胆道结石残余、术后住院时间。结果〓53例患者均顺利完成手术,无中转开腹。术中35例采用液电碎石,每例碎石次数约3~10次,每次持续放电约2~3秒,其中2例较大者反复击打约15次。术中胆道出血者3例,没有出现难以控制的出血以及胆管穿透或胆管壁撕裂病例。术后平均住院时间7.1±2.6天,无腹腔感染病例。所有患者均得到术后半年随访,2例发现术后结石残余,经消化内镜取石。未发现胆总管狭窄病例。 结论〓腹腔镜联合肾镜液电碎石仪治疗胆道结石,在基层医院中有一定的可行性与实用性。     

人胚胎胃肠及胰腺D细胞发生的研究

用免疫细胞化学方法研究人胚胎各时期胃肠胰的Ｄ细胞发生及其形态与功能的关系。结果发现：Ｄ细胞最早出现于６周零５天胚的十二指肠，７周零３天胚的胰、胃、空肠，７周零６天胚的回肠，８周零４天胎的结肠及１０周零５天胎的阑尾；细胞密度在胚期低，胎期逐增，至胎晚期又依次在胰、胃窦、十二指肠、胃体、空肠、回肠、升结肠及阑尾中降低，且肠绒毛顶端可见衰老的Ｄ细胞。提示胚胎Ｄ细胞的发生与胃肠胰的发育有关。