Copine-8在胃癌组织中的表达与临床病理特征及预后的相关性

目的 探讨Copine-8(CPNE8)在胃癌组织中的表达与患者临床病理特征及预后的相关性。方法 收集2011年3月—2014年3月于仙桃职业学院附属医院行胃癌根治术并经过病理证实的胃癌组织标本144例,采用免疫组织化学分析CPNE8在胃癌及其配对的癌旁组织中的表达情况,并分析其与胃癌临床病理参数及预后的关系。结果 免疫组织化学结果表明,CPNE8阳性表达率在胃癌组织中较癌旁组织中明显升高(63.9% vs. 26.4%,χ²=36.450,P＜0.001);CPNE8的表达与胃癌患者的TNM分期及有无淋巴结转移密切相关(χ²=5.993,P=0.014;χ²=6.703,P=0.009)。Kaplan-Meier生存分析发现,CPNE8高表达患者总生存时间(OS)和无病生存时间(DFS)均明显短于CPNE8低表达患者(χ²=23.130,P＜0.001;χ²=21.570,P＜0.001)。TNM分期(HR=1.297,95% CI:1.018~1.652,P=0.036)、淋巴结转移(HR=1.340,95% CI:1.027~1.749,P=0.031)和CPNE8蛋白表达(HR=1.531,95% CI:1.208~1.940,P＜0.001)是影响胃癌患者OS的独立危险因素;TNM分期(HR=1.280,95% CI:1.028~1.593,P=0.027)和CPNE8蛋白表达(HR=6.010,95% CI:1.355~26.661,P=0.018)是影响胃癌患者DFS的独立危险因素。结论 CPNE8在胃癌组织中显著表达上调,并与患者恶性病理特征密切相关,CPNE8可成为胃癌患者预后评估的标志物之一。     

Blood lead level and Helicobacter pylori infection in a healthy population: A cross-sectional study

Abstract

The aim of this study was to investigate whether elevated blood lead level (BLL) is a risk factor for Helicobacter pylori infection. Upper gastrointestinal endoscopy was performed on 2,625 subjects who visited a university hospital for general health examination. H. pylori infection was detected using histologic examination with Giemsa staining, and BLLs were measured. The mean BLL was 2.83?±?1.31?μg/dL. The prevalence of H. pylori infection was 27.8%. The BLL was significantly higher in the H. pylori infection-positive group compared to the non-infected group (2.96?±?1.33?μg/dL vs. 2.78?±?1.30?μg/dL, p?<?0.001), which remained significant after adjusting for other confounders. H. pylori infection significantly increased as the BLL increased (OR: 1.143, 95% CI 1.068–1.223). We found a relationship between BLL elevation and H. pylori infection rate.     

PRKAA1 Promotes Proliferation and Inhibits Apoptosis of Gastric Cancer Cells Through Activating JNK1 and Akt Pathways

PRKAA1 (protein kinase AMP-activated catalytic subunit 1) is a catalytic subunit of AMP-activated protein kinase (AMPK), which plays a key role in regulating cellular energy metabolism through phosphorylation, and genetic variations in the PRKAA1 have been found to be associated with gastric cancer risk. However, the effect and underlying molecular mechanism of PRKAA1 on gastric cancer tumorigenesis, especially the proliferation and apoptosis, are not fully understood. Our data showed that PRKAA1 is highly expressed in BGC- 823 and MKN45 cells and is expressed low in SGC-7901 and MGC-803 cells in comparison with the other gastric cancer cells. PRKAA1 downregulation by shRNA or treatment of AMPK inhibitor compound C significantly inhibited proliferation as well as promoted cell cycle arrest and apoptosis of BGC-823 and MKN45 cells. Moreover, the expression of PCNA and Bcl-2 and the activity of JNK1 and Akt signaling were also reduced in BGC-823 and MKN45 cells after PRKAA1 downregulation. In vivo experiments demonstrated that tumor growth in nude mice was significantly inhibited after PRKAA1 silencing. Importantly, inactivation of JNK1 or Akt signaling pathway significantly inhibited PRKAA1 overexpression-induced increased cell proliferation and decreased cell apoptosis in MGC-803 cells. In conclusion, our findings suggest that PRKAA1 increases proliferation and restrains apoptosis of gastric cancer cells through activating JNK1 and Akt pathways.     

逐级减压套扎法治疗胃底静脉曲张临床观察

目的比较逐级减压套扎法与硬化剂治疗胃底静脉曲张的疗效差异,以期为临床提供参考。方法选择萍乡市第二人民医院消化内科2018年9月～2019年3月收治的胃底静脉曲张病例80例,随机分为两组,每组各40例,治疗组采取逐级减压套扎治疗。对照组采用传统硬化剂注射法治疗。治疗结束后比较两组患者治疗有效率、并发症发生情况、静脉曲张消除率及再出血率。结果 (1)治疗后,治疗组总有效率高于对照组,差异有统计学意义(P0.05)。(2)两组间并发症发生率比较,差异均无统计学意义(均P0.05)。(3)首次治疗后治疗组静脉曲张消除率高于对照组,两组差异具有统计学意义(P0.05)。全部患者随访3个月,治疗组再出血率低于对照组,两组差异具有统计学意义(P0.05)。结论逐级减压套扎法革新手术方式明显提高疗效,减少复发率,减轻患者负担,具有明显的实用性和先进性,值得在医疗机构推广,尤其是在基层医院,具有良好的社会效益和经济效益。     

重症肺炎合并应激性溃疡出血的中医证候研究

目的：初步探索重症肺炎合并应激性溃疡出血的中医证候及主要证型，为辨证施治提供依据。方法：选取2014年1月1日至12月31日北京中医药大学东方医院收治的重症肺炎合并应激性溃疡出血患者60例作为研究对象。对主要症状体征直接辨证，对伴随症状体征采用因子分析寻找该疾病的常见中医证候，并统计其分布特点。结果：本病涉及的主要脏腑为肺、脾，主要证候符合痰热蕴肺证特点，伴随症状体征辨证显示气阴亏虚、肺脾不足兼见痰浊、瘀血的特点。结论：重症肺炎合并应激性溃疡出血初期以痰热壅肺为基础证型、核心证型，在此基础上可见气阴两虚、肺脾不足的证候表现，同时兼见痰湿、血瘀之象，病性虚实夹杂，病位在肺脾。     

Pressure levels in the trochanter area according to repositioning at different degrees of inclination in healthy subjects

ObjectivesPatient repositioning is a recommended intervention to prevent or treat pressure ulcers (PUs). One option under consideration is the tailored repositioning according to patient characteristics, but more knowledge is needed on how different repositioning patterns influence on skin pressure. To determine what degree of inclination of the body in bed generates more pressure in the trochanteric region. Additionally, to analyze the influence of factors such as gender, age and anthropometric characteristics in the variations of this pressure.MethodsAnalytical cross-sectional study. Body Mass Index (BMI), lean mass and fat mass were measured in healthy volunteers subject to different inclinations (90°, 60° and 30°) in right lateral decubitus. Pressure was measured with a capacitive surface.ResultsIn total, 146 subjects were included, of which 45 were men and 101 women. The results showed pressure differences due to the inclination according to gender and anthropometric values, being statistically significant in men at 90° and 60°, and in women at 30°. (hombres 90° p = 0,026, 60° p = 0,049; mujeres 30° p = 0,036) según prueba Brown-Forsythe.ConclusionsThere are differences in the pressures of the trochanteric zone depending on anthropometric factors and by gender, in different body positions. Obese people exerted a higher pressure in the trochanter area at 30° of body inclination than overweight, normal weight and underweight people, respectively. From the clinical point of view, these findings invite to consider a possible differentiation in the repositioning interventions of the patients, according to gender and BMI, as a preventive strategy for PUs.     

The mechanism of persistent undermining of a sacral pressure ulcer: Experimental analyses using a deformable model and examination of skin mobility over different anatomical locations

Undermining is an important issue in the treatment and care of deep pressure ulcers. The frequency of the undermining over different bony prominences varies. In particular, deep pressure ulcers over the sacrum exhibit undermining more frequently than those occurring over the heel. Although shear force has been suggested as a critical factor in undermining, the exact mechanism remains unclear due to ethical and technical reasons in clinical practice. To clarify this issue, a deformable model was constructed to recreate the physical and morphological properties of a pressure ulcer with persistent undermining. The model was constructed using urethane to recreate the physical properties of a pressure ulcer. To examine the clinical relevance of the model, mechanical properties of the skin and the model were measured using a durometer. The model was further mounted onto a phantom that was laid on a bed. Backrest elevation of the bed induced deformities in the urethane model, suggesting a mechanism of persistent undermining of the sacral pressure ulcer. Moreover, a simple palpation examination in elderly volunteers revealed that the skin over the sacrum was more mobile than the skin over the heel. Therefore, persistent undermining is likely caused by specific external forces and the characteristic skin mobility of the sacral region. These two different factors explain the frequent undermining that occurs in sacral pressure ulcers.