心理护理干预对风湿性心脏病心脏瓣膜置换术后患者精神状态及生活质量的影响

目的 探讨分析心理护理干预对风湿性心脏病（RHD）心脏瓣膜置换术后患者精神状态及生活质量的影响。方法 选定本院2018年12月～2020年12月住院治疗的106例接受心脏瓣膜置换术治疗的RHD患者作为主要研究对象,按随机数字表法将研究对象随机分为观察组和对照组。对照组53例患者采纳常规护理,观察组53例患者在对照组基础上予以心理护理,比较两组患者干预前后的汉密尔顿抑郁量表（HAMD）评分、汉密尔顿焦虑量表（HAMA）评分和生活质量综合评定问卷（GQOL-74）评分,及服药依从性。结果 观察组患者干预后HAMA评分和HAMD评分均低于对照组（P<0.05）,GQOL-74评分高于对照组（P<0.05）。观察组患者服药依从性（96.23%）高于对照组（73.58%）(P<0.05)。结论 心理护理可有效减轻RHD心脏瓣膜置换术后患者的不良情绪,提高其服药依从性及生活质量,值得临床推广应用。     

Effect of concentration of glycidol on the properties of resorcinol-formaldehyde aerogels and carbon aerogels

By using glycidol as a catalyst, high porosity, low-density resorcinol (R) and formaldehyde (F) aerogels and carbon aerogels (CAs) were synthesized via a sol-gel method. The effect of glycidol and water on the color, density, morphology, textual characteristics and adsorption properties of the resultant RF aerogels and CAs were investigated in detail. The results revealed that the properties of RF aerogels and CAs can be controlled by adjusting the amount of glycidol and water. The resultant RF aerogels and CAs were porous materials, the minimum densities of RF aerogels and CAs were 96 and 110 mg cm⁻³ respectively while the maximum specific surface areas of RF aerogels and CAs were 290 and 597 m² g⁻¹. The maximum adsorption capacity of CAs was about 125 mg g⁻¹ on Rhodamine B, which was higher than that of some reported CAs catalyzed by base and acid catalysts. The sol-gel mechanisms of RF aerogels and CAs can be attributed to the opening of the epoxy group of glycidol in the mixture of R and F.

The sol-gel mechanism of glycidol-catalyzed RF aerogels is the opening of the epoxy ring rather than the preservation the of epoxy ring.     

Using a two-step method of surface mechanical attrition treatment and calcium ion implantation to promote the osteogenic activity of mesenchymal stem cells as well as biomineralization on a β-titanium surface

Surface treatment is known as a very efficient measure by which to modulate the surface properties of biomaterials in terms of grain structure, topography, roughness and chemistry to determine the osseointegration of implants. In this work, a two-step method of surface modification was employed to impart high osteogenic activity and biomineralization capacity on a Ti–25Nb–3Mo–2Sn–3Zr alloy (a type of β-titanium named TLM). The preliminary surface mechanical attrition treatment (SMAT) refined the average grain size from 170 ± 19 μm to 74 ± 8 nm in the TLM surface layer and promoted the surface to be much rougher and more hydrophilic. The subsequent Ca-ion implantation did not change the surface roughness and topography obviously, but enhanced the surface wettability of the SMAT-treated TLM alloy. The in vitro evaluations of the adhesion, proliferation, osteogenic genes (RUNX2, ALP, BMP-2, OPN, OCN and COL-I) and protein (ALP, OPN, OCN and COL-I) expressions, as well as extracellular matrix (ECM) mineralization of mesenchymal stem cells (MSCs) revealed that the initial SMAT-treated sample significantly enhanced the adhesion and osteogenic functions of MSCs compared to an untreated TLM sample, and the subsequent introduction of Ca ions onto the SMAT-derived nanograined sample further promotes the MSC adhesion, proliferation, osteo-differentiation and ECM mineralization due to the adsorption of more proteins such as laminin (Ln), fibronectin (Fn) and vitronectin (Vn) on the surface, as well as the increase in extracellular Ca concentrations. In addition, the biomineralization capacity of the samples was also evaluated by soaking them in simulated bodily fluid (SBF) at 37 °C for 28 days, and the results showed that the Ca-ion implanted sample significantly boosted the deposition of Ca and P containing minerals on its surface, which was associated with the generation of more Ti–OH groups on the surface after ion implantation. The combination of the SMAT technique and Ca-ion implantation thus endowed the TLM alloy with outstanding osteogenic and biomineralization properties, providing a potential means for its future use in the orthopedic field.

Combination of the SMAT technique and Ca-ion implantation produced a β-titanium alloy with a bioactive surface layer, which was proved to effectively promote the osteogenic activity of MSCs and Ca–P mineral deposition in vitro.     

2型糖尿病男性患者血清骨膜蛋白水平与骨质疏松的相关性研究

目的 探索骨膜蛋白水平2型糖尿病男性患者骨质疏松的关系.方法 收集了2016年3月至2017年3月在我院门诊诊断为2型糖尿病男性病人90例,体检中心健康男性人群中随机选取30例作为正常对照组,记录患者的年龄、腹围、身高、体重,计算BMI,测定甘油三酯、总胆固醇、高密度脂蛋白、低密度脂蛋白、糖化血红蛋白,血清骨膜蛋白水平...     

雷奈酸锶对大鼠伴糖尿病牙周炎牙槽骨吸收的影响

目的:探讨雷奈酸锶对大鼠伴糖尿病牙周炎牙槽骨吸收的影响.方法:选取200 g左右雄性大鼠40只随机分为4组:糖尿病大鼠对照组(D)、糖尿病大鼠雷奈酸锶灌胃组(D+Sr)、糖尿病牙周炎组(D+L)、糖尿病牙周炎雷奈酸锶灌胃组(D+L+Sr),给药4周后处死,收集样本检测血清钙、磷和碱性磷酸酶浓度,牙槽骨吸收量和RANKL...     

复方多粘菌素B软膏联合普济痔疮栓治疗肛窦炎的临床观察

目的 观察复方多粘菌素B软膏联合普济痔疮栓治疗肛窦炎的临床疗效.方法 选取2018年6月-2019年6月于重庆市中医院南桥寺院部门诊明确诊断为肛窦炎的患者60例,采用抓阄法随机分为治疗组和对照组,每组30例.治疗组予以复方多粘菌素B软膏联合普济痔疮栓治疗,对照组予以普济痔疮栓治疗,比较2组治疗前、治疗后3 d、7 d症...     

RNAi沉默survivin基因表达对膀胱癌EJ细胞增殖的影响

目的 通过RNA干扰(RNAi)阻断EJ细胞中survivin基因的表达,研究survivin基因沉默后对细胞生长和细胞凋亡的影响.方法 将合成的DNA正义链及反义链变性、退火,形成的双链DNA与pSilencer2.0线性质粒以T4 DNA连接酶连接,重组质粒经酶切、DNA测序鉴定后,用脂质体法转染EJ细胞,通过RT-PCR、免疫印迹检测干扰效果.MTT法检测细胞生长的影响,流式细胞仪检测转染后EJ细胞的凋亡变化.结果 酶切及测序证实设计合成的DNA片段已正确插入载体.RT-PCR、免疫印迹检测实验表明:pSilencer2.0-SVV1、pSilencer2.0-SVV2重组载体均能有效地阻断EJ细胞中survivin基因的表达,使survivin基因在mRNA和蛋白水平上的表达明显下调(P<0.01),后者抑制效果更佳.转染后的EJ细胞生长速度明显变慢.转染pSilencer2.0-SVV2实验组细胞的凋亡增加了17.0%.结论 重组真核载体能有效抑制EJ细胞的survivin表达,抑制细胞的增殖,诱导细胞凋亡.     

CHM基因变异女性携带者表型和基因型特点

目的 总结分析中国CHM基因变异女性携带者表型、基因型特点.设计 回顾性病例系列.研究对象 北京同仁医院眼科就诊并已确定携带CHM基因变异的5个无脉络膜症(choroideremia,CHM)家系中的6例女性携带者.方法 先证者及家系成员均进行详细的眼科检查.用sanger测序、目标区域捕获测序(target exon...     

Association of AGTR1 gene methylation and its genetic variant in Chinese farmer with hypertension: A case-control study

The objective was to determine the potential associations of the angiotensin II receptor type 1 (AGTR1) gene polymorphism, methylation, and lipid metabolism in Chinese farmers with hypertension.A case-control study was conducted in Wuzhi county of Henan province in China in 2013 to 2014. A total of 1034 local residents (35–74 years, 386 hypertensive cases, and 648 normotensive subjects) were enrolled in this study. Triglyceride (TG), total cholesterol (TC), high-density lipoprotein, and low-density lipoprotein were measured using automatic chemistry analyzer. The AGTR1 gene promoter methylation level was measured using quantitative methylation-specific polymerase chain reaction method. The single nucleotide polymorphism rs275653 was genotyped with TaqMan probe assay at an applied biosystems platform.The gender, body mass index (BMI), TG, TC, and family history of hypertension in the hypertension group were significantly higher than those in control group (P < .05). No significant difference was observed in the distribution of AGTR1 rs275653 polymorphism in the hypertension and controls (P > .05). The AGTR1 gene methylation in subjects carrying different genotypes was not significantly observed (P > .05). The logistic regression analysis found the AGTR1 gene methylation level was negative correlation with hypertension in the present study (odds ratio, 0.946, 95% confidence interval, 0.896–0.999) through adjusting for age, gender, BMI, education, smoking, alcohol drinking, fruit and vegetable intake, pickles intake, and family history of hypertension.The association of AGTR1 gene hypomethylation and essential hypertension was observed in Chinese farmers; no significant difference was observed in the distribution of AGTR1 rs275653 polymorphism.     

布加综合征的多层螺旋CT诊断

目的 探讨多层螺旋CT(multislice spiral CT, MSCT)在布加综合征(Budd-Chiari syndrome, BCS)中的诊断价值.方法 回顾性分析28例经DSA或手术证实的布加综合征MSCT影像特点.结果 BCS的MSCT特点为:①CT平扫形态学改变:肝脏不规则增大15例,弥漫增大10例,未见明显改变3例;②强化特征:花斑状强化型11例,周边强化型6例,中央强化型8例,不规则强化3例;③CTA准确显示阻塞的部位及侧支循环血管:肝静脉闭塞3例;下腔静脉狭窄闭塞25例,其中7例伴肝静脉闭塞;显示肝外侧支循环16例,肝内侧支循环2例,肝内外均有侧支循环7例,3例无侧支循环血管.结论 MSCT能准确直观反映布加综合征阻塞的性质、部位、范围、侧支血管及其与周围器官的空间关系,能从形态及功能上反映肝脏损害程度.