Assessment of the Benefits of Targeted Interventions for Pandemic Control in China Based on Machine Learning Method and Web Service for COVID-19 Policy Simulation

Taking the Chinese city of Xiamen as an example, simulation and quantitative analysis were performed on the transmissions of the Coronavirus Disease 2019(COVID-19) and the influence of intervention combinations to assist policymakers in the preparation of targeted response measures. A machine learning model was built to estimate the effectiveness of interventions and simulate transmission in different scenarios. The comparison was conducted between simulated and real cases in Xiamen. A web inter...     

依帕列净调节糖尿病相关非编码RNA表达机制

目的探讨依帕列净调节糖尿病相关非编码RNA表达的机制。方法选取6周龄的T2DM STZ模型小鼠,分成对照组和依帕列净组。依帕列净组小鼠通过饮食给药法,按照每天300 mg/kg给予依帕列净治疗,连续给药12 w。对照组小鼠给予相同饮食,但不含依帕列净。Western印迹法检测两组钠-葡萄糖协同转运蛋白(SGLT)2、核转录因子(NF-κB)的蛋白表达。比较两组不同时间体重及血糖。qRT-PCR检测两组SGLT2、Lnc-P12792、MALAT1、KCNQOT1、miR-370 mRNA表达。结果各时间点依帕列净组血糖均显著低于对照组(P<0.01)。但两组体重差异无统计学意义。与对照组比较,依帕列净组SGLT2蛋白及mRNA显著降低,Lnc-P12792、MALAT1 mRNA显著降低(P<0.05)。两组KCNQOT1 mRNA差异无统计学意义。结论依帕列净抑制SGLT2的分子机制可能是通过促进miR-370表达从而介导SGLT2 mRNA的降解并抑制其蛋白表达。     

Inverse correlation between gastroesophageal reflux disease and atrophic gastritis assessed by endoscopy and serology

BACKGROUND Helicobacter pylori(H.pylori)infection is known to prevent the occurrence of gastroesophageal reflux disease(GERD)by inducing gastric mucosal atrophy.However,little is known about the relationship between atrophic gastritis(AG)and GERD.AIM To confirm the inverse correlation between AG and the occurrence and severity of GERD.METHODS Individuals receiving health checkups who underwent upper gastrointestinal endoscopy at Seoul National University Healthcare System Gangnam Center were included.The grade of reflux esophagitis was evaluated according to the Los Angeles classification.Endoscopic AG(EAG)was categorized into six grades.Serologic AG(SAG)was defined as pepsinogen I≤70 ng/m L and pepsinogen I/II ratio≤3.0.The association between the extent of EAG and SAG and the occurrence and severity of GERD was evaluated using multivariate logistic regression analysis.RESULTS In total,4684 individuals with GERD were compared with 21901 healthy controls.In multivariate logistic regression analysis,advanced age,male sex,body mass index>23 kg/m2,presence of metabolic syndrome,current smoking,and alcohol consumption were associated with an increased risk of GERD.Seropositivity for H.pylori immunoglobulin G antibodies was associated with a decreased risk of GERD.There was an inverse correlation between the extent of EAG and occurrence of GERD:Odds ratio(OR),1.01[95%confidence interval(CI):0.90-1.14]in C1,0.87(0.78-0.97)in C2,0.71(0.62-0.80)in C3,0.52(0.44-0.61)in O1,0.37(0.29-0.48)in O2,and 0.28(0.18-0.43)in O3.Additionally,the extent of EAG showed an inverse correlation with the severity of GERD.The presence of SAG was correlated with a reduced risk of GERD(OR=0.49,95%CI:0.28-0.87,P=0.014).CONCLUSION The extent of EAG and SAG exhibited strong inverse relationships with the occurrence and severity of GERD.AG followed by H.pylori infection may be independently protect against GERD.     

rhBMP in lumber fusion for lumbar spondylolisthesis: A systematic review and meta-analysis

Purpose

To compare the efficacy and safety of recombinant human bone morphogenetic protein (rhBMP) and iliac crest autograft in the fusion treatment of lumbar spondylolisthesis.

成人非中线髓母细胞瘤的MRI表现

目的探讨成人非中线髓母细胞瘤的MRI表现,以提高对该肿瘤的认识及诊断能力。方法对12例经手术病理证实的成人非中线髓母细胞瘤的MRI表现进行回顾性分析。结果 10例位于小脑灰质区,2例位于桥小脑角区;非中线髓母细胞瘤在T_1WI呈等或稍低信号,T_2WI呈稍高或等信号,信号多不均匀,所有病例均可见囊变区,呈裂隙状、条状及大小不等片状囊变区,增强后8例肿瘤实质呈明显强化,4例呈中度强化,有4例呈渐进性强化。6例瘤周可见轻度水肿,9例幕上脑室有不同程度积液、扩张。结论成人非中线髓母细胞瘤MRI表现有一定的特征性,结合发病部位及仔细分析征象,可提示该诊断的可能。     

有效心理护理在五官科防范护患纠纷中的效果

目的分析有效心理护理在五官科防范护患纠纷中的效果。方法2017年1月—2017年12月,医院五官科收治患者670例,纳入对照组,行常规护理。2018年1月—2018年12月,医院五官科收治患者684例,纳入观察组,行有效心理护理。比较两组患者的护患纠纷发生率及护理满意度。结果观察组护患纠纷发生率低于对照组,并且其护理满意度评分高于对照组,差异有统计学意义(P 0.05)。结论有效心理护理可以有效的降低五官科护患纠纷发生率,提升护理满意度,应作为基础护理内容。     

综合护理结合配合艾灸对慢性乙肝患者的影响

目的探讨综合护理干预配合艾灸对肝郁脾虚型慢性乙肝患者生活质量的影响。方法将94例肝郁脾虚型慢性乙肝患者分成对照组与研究组。对照组给予常规护理,研究组配合综合护理干预与艾灸。结果研究组护理满意度高于对照组,差异具有统计学意义(P 0.05)。研究组焦虑情绪评分、睡眠质量评分与GQLI-64生活质量评分均优于对照组,差异均具有统计学意义(P 0.05)。结论肝郁脾虚型慢性乙肝患者予以综合护理配合艾灸干预效果满意。     

加味猪苓汤对阿霉素肾病综合征大鼠TRPC6、CaN表达的影响

目的:探讨加味猪苓汤对阿霉素肾病综合征大鼠肾组织中TRPC6、CaN表达的影响。方法:选取90只清洁级SD大鼠,适应性喂养1周后随机分为两组:健康组(30只)、模型组(60只)。采用阿霉素注射法建立肾病综合征大鼠模型,造模成功后,60只模型组大再次随机分为模型对照组(30只)和实验组(30只)。健康组和模型对照组给予生理盐水灌胃,实验组给予加味猪苓汤颗粒灌胃,3周后检测24 h尿蛋白、血清胆固醇、白蛋白、尿素氮及血肌酐,处死大鼠后称取左肾质量,计算肥大指数; PAS染色观察肾小球直径、大鼠肾脏病理变化以及肾组织中TRPC6、CaN的表达。结果:与健康组比较,模型组大鼠24 h尿蛋白定量、肾脏病理损害程度以及TRPC6、CaN的表达显著增加(P0.01),血清白蛋白水平、体质量显著降低(P0.01);与对照组比较,实验组大鼠24 h尿蛋白定量、肾脏病理损害程度以及TRPC6、CaN的表达显著降低(P0.01),血清白蛋白水平、体质量显著升高(P0.01)。结论:加味猪苓汤可以改善肾功能、降低尿蛋白,减轻肾脏病理损害,具有一定的肾脏保护功能,其机制可能是通过降低肾组织中TRPC6、CaN的表达有关。