Study on the association between the polymorphism of MCP-1 rs1024611 and the genetic susceptibility of type 2 diabetes with sepsis

Monocyte chemoattractant protein-1 (MCP-1) rs1024611 (-2518 A > G) polymorphism are associated with inflammatory diseases. In this study, we investigate the relationship between MCP-1 rs1024611 polymorphism and genetic susceptibility of type 2 diabetes mellitus (T2DM) with sepsis.Two hundred eighty-five patients with T2DM are divided into the diabetes with sepsis group (combined group, 113 cases) and the diabetes group (172 cases). Blood samples and corresponding clinical data were collected. MCP-1 rs1024611 polymorphism in blood samples was detected by pyrosequencing. Meanwhile, the expressions of MCP-1, tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1β, and IL-6 in blood samples were detected by real-time quantitative polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. The relationship between different genotypes of MCP-1 rs1024611 polymorphic locus and T2DM with sepsis was analyzed by combining with the clinical data of the patients.The frequencies of rs1024611 AG/GG genotypes and G allele in T2DM with sepsis group were significantly higher than those in T2DM patients without sepsis (P = .004 for AG/GG vs AA genotypes; P = .037 for G allele vs A allele). Subgroup analysis showed that the rs1024611 G allele frequency in the septic shock group was significantly higher than the general sepsis group (P = .02). The expressions of MCP-1 and TNF-α in GG genotypes in T2DM with sepsis group were significantly higher than AA or GA genotypes (P < .05).This study preliminarily showed that the rs1024611 A > G polymorphism within the promoter region of MCP-1 gene can upregulate the expression of MCP-1 gene and proinflammatory cytokine TNF-α, which ultimately contributed to the predisposition and progression of T2DM with sepsis.     

Prevention and control strategies in the diagnosis and treatment of solid tumors in children during the COVID-19 pandemic

Abstract

Since the emergence of patients with COVID-19 in December 2019, the virus has rapidly spread worldwide. Children with malignant tumors are more prone to be infected and develop severe infections. Prevention and control of the pandemic and ensuring the progress of the cancer diagnosis and treatment is a significant problem in the current scenario. This article proposes a scientific management system for patients with solid tumors to guarantee emergency surgery, rationally arrange limited-term surgery, appropriately defer elective surgery, and guarantee regular chemotherapy, while protecting children from SARS-CoV-2 infection and ensuring the continuity of comprehensive diagnosis and treatment.     

儿童肾小球疾病不同标本转化型生长因子-β1检测结果的比较

目的　比较评价儿童肾小球疾病血浆、血清、尿液不同标本的转化型生长因子 β1(TGF β1)水平。方法　用ELISA方法测定 30例轻微病变、30例系膜增生性肾小球肾炎、2 4例IgA肾病、2 4例局灶节段性肾小球硬化患儿和 30例健康对照组儿童血浆、血清、尿液中的TGF β1水平。结果　尿液标本的TGF β1水平对各组的诊断有显著意义 (P <0 0 5 ) ,而血浆、血清标本没有诊断意义 (P >0 0 5 )。血浆测定TGF β1灵敏度较血清好。血浆、尿液指标有较好的相关性 (r=0 85 ,P <0 0 5 ) ;血清与尿液仅有一定的相关性 (r=0 5 3,P <0 0 5 ) ;血浆与血清无显著相关性 (r =0 4 9,P >0 0 5 )。结论　尿液为检测肾炎患儿TGF β1水平的较好指标 ,血浆次之 ,血清最差。     

非那雄安联合特拉唑嗪对前列腺增生症围手术期腺体微血管密度的影响

目的通过对CD34和第Ⅷ因子相关抗原（FⅧ-Rag）在非那雄安联合特拉唑嗪治疗前列腺增生症围手术期中的表达及腺体微血管密度（MVD）的检测,探讨前列腺增生症围手术期非那雄安联合特拉唑嗪治疗后FⅧ-Rag、CD34与MVD的关系及其对手术的影响。方法设在围手术期联合应用非那雄安、特拉唑嗪为实验组,单独服用非那雄安治疗为对照组,采用免疫组化方法检测两组患者术后前列腺组织中CD34、FⅧ-Rag的表达,并检测其微血管密度。结果实验组与对照组CD34的表达值分别为（19.4±3.6）和（21.5±4.7）,FⅧ-Rag的表达值分别为（14.8±2.1）和（18.3±3.5）,差异均有统计学意义（P均〈0.05）。结论在前列腺增生症围手术期应用非那雄安联合特拉唑嗪治疗,可以降低前列腺腺体的微血管密度,有效减少手术中和手术后的出血。     

新天然来源抗生素-抗霉素A_(18)的抗肿瘤活性及其产生菌I07A-01824的生物学特征

目的检测抗霉素A18的体外抗肿瘤活性并对其产生菌I07A-01824的形态及培养特征,生理生化特征等进行研究。方法用MTT法检测抗霉素A18的肿瘤细胞生长抑制作用,用流式细胞术测定其对细胞周期的影响;按分类学常规方法研究菌株I07A-01824的形态及部分生理生化特征。结果抗霉素A18能够抑制人肝癌细胞HepG2、人口腔上皮癌细胞KB的生长;这两个细胞株均被阻滞在细胞周期的S期。菌株I07A-01824的形态及培养特征与已知种——黄白链霉菌(Streptomyces albidoflavus)一致。结论红树林内生放线菌是新抗生素的重要来源。     

药品价格国际比较参比国家遴选原则探讨

目的:为我国选取药品价格国际比较参比国家提供参考。方法:查阅相关文献,分析、总结国外药品价格国际比较的研究和案例,探讨参比国家遴选原则。结果:参比国家遴选主要遵循经济水平相似、地理位置相邻、报销机制相似、数据可获得、数量适宜等原则。结论:建议我国采用两个或两个以上原则选取参比国家,有必要的情况下还可以针对不同药品选取相应的参比国家。     

超声引导下前锯肌平面阻滞对乳腺癌术后疼痛综合征的影响

目的:观察超声引导下前锯肌平面阻滞(serratus plane block,SPB)用于乳腺癌改良根治术围术期镇痛的疗效,探讨其对预防乳腺癌术后疼痛综合征(post-mastectomy pain syndrome,PMPS)的作用.方法:择期拟行单侧乳腺癌改良根治术的女性患者100例,采用随机数字表法分为2组,全麻组(G组)和全麻联合神经阻滞组(GB组).麻醉诱导前,GB组行超声引导下术测SPB,注射0.33％罗哌卡因30 mL;G组行模拟阻滞,相同位置注射等量生理盐水.术后2组均给予静脉自控镇痛(patient con-trolled intravenous analgesia,PCIA).随访术后4 h、12 h、24 h、48 h疼痛数字等级(numerical rating scale,NRS)评分及术后补救镇痛情况;记录术后3个月、6个月、9个月、12个月NRS评分和PMPS发生率.结果:①GB组术后4 h(P=0.000)、12 h(P=0.000)、24 h(P=0.000)、48 h(P=0.001)静息NRS评分低于G组;术后4 h(P=0.000)、12 h(P=0.000)、24 h(P=0.002)、48 h(P=0.001)活动NRS评分低于G组;②GB组术后PCA按压次数(0.07± 0.34)比G组(0.56±0.82)减少(P=0.001);镇痛补救比例(4.77％)比G组(35.90％)降低(P=0.000).③GB组患者术后6个月(47.62％)PMPS发生率低于G组(71.80％)(P=0.041);术后9个月(35.71％)PMPS发生率低于G组(61.54％)(P=0.020).④GB组在术后6个月(P=0.020)、9个月(P=0.016)静息NRS评分均明显低于G组.⑤急性NRS评分与术后慢性NRS评分有一定相关性.结论:超声引导下SPB可显著改善乳腺癌改良根治术围术期疼痛、减少阿片类药物消耗,并降低PMPS发生率及疼痛程度.此外,术后急性疼痛NRS评分和PMPS严重程度具有相关性.     

ACEI/ARB对经皮冠脉介入诊疗后对比剂肾病影响的系统评价

目的:评价血管紧张素转化酶抑制剂(angiotensin converting enzyme inhibitor,ACEI)或血管紧张素受体阻滞剂(angiotensin receptor blockers,ARB)在接受冠状动脉造影(coronary angiogram,CAG)或经皮冠脉介入(percutaneous coronary intervention,PCI)治疗患者中对对比剂肾病(contrast induced nephropathy,CIN)的影响。方法:在Pub Med、The Cochrane library、维普、知网、万方数据库中搜索从建库到2014年8月的与ACEI/ARB和对比剂肾病相关的文献。根据纳入/排除标准选择文献,评价纳入文献的质量,提取资料采用Stata 11.0软件进行数据Meta数据分析,采用Begg’s法和Egger’s法评估发表偏倚。结果:11项随机对照研究纳入分析,在接受冠脉造影或介入治疗的患者中,与对照组相比,术前使用ACEI/ARB不增加CIN的发生风险,差异无统计学意义(RR=0.78,95%CI=0.53~1.15,P=0.22)。亚组分析显示,治疗时间≥2周组(RR=0.78,95%CI=0.37~1.62,P=0.50)和<2周组(RR=0.79,95%CI=0.50~1.24,P=0.30)均不影响CIN的发生风险。但ACEI/ARB的使用明显降低术后72 h时CIN的发生风险(RR=0.44,95%CI=0.23~0.87,P=0.02);在平均造影剂用量≤150 ml组,CIN的风险也明显降低(RR=0.57,95%CI=0.33~0.99,P=0.046)。结论:目前尚无证据表明经皮冠状动脉介入诊疗术前使用ACEI/ARB会增加术后CIN的风险。     

ATG4A及ATG16L1基因多态性与肺结核易感性的关系

目的：探讨自噬相关基因４Ａ（autophagy related 4A,ATG4A）及自噬相关基因１６Ｌ１（autophagy related １６ like 1,ATG16L1）的多态性位点与中国西南地区人群肺结核易感性的关系。方法：采用聚合酶链反应-限制性片段长度多态性技术检测218例肺结核患者及248例健康对照者ATG4A基因rs807185位点及ATG16L1基因rs2241880位点的基因型,用logistic回归分析上述２个位点与肺结核病易感的相关性。结果：2组人群中rs807185位点的A等位基因、AT基因型及显性模型AA+AT vs. TT的频率分布存在统计学差异（P＜0.05）,且在女性中差异更突出。而rs2241880位点的各指标频率分布差异均不明显（P >0.05）。结论：ATG4A基因rs807185位点多态性与中国西南地区人群肺结核易感性呈负相关,而ATG16L1基因rs2241880位点多态性则与该地区人群肺结核易感性无明显相关。     

慢病毒介导shRNA沉默YAP基因对人前列腺癌LNCaP细胞增殖、凋亡及其雄激素受体的影响

目的:探讨慢病毒介导sh RNA沉默Yes-相关蛋白(Yes-associated protein,YAP)基因对人激素依赖性前列腺癌细胞株LNCa P细胞增殖、凋亡及其雄激素受体(androgen receptor,AR)的影响。方法:3条针对YAP基因的sh RNA慢病毒干扰载体感染LNCa P细胞,经嘌呤霉素筛选后建立稳定感染细胞系,real-time PCR、Western blot分别检测感染后各组细胞YAP、AR m RNA和蛋白水平;选取沉默效果最佳sh RNA慢病毒干扰载体组,以细胞增殖/毒性检测(cell counting kit-8,CCK-8)、平板克隆形成实验(colony formation)检测LNCa P细胞增殖能力;流式细胞仪(flow cytometry,FCM)检测LNCa P细胞凋亡改变。结果:重组慢病毒成功感染前列腺癌LNCa P细胞,经嘌呤霉素筛选后感染效率达95%以上,获得稳定沉默YAP基因LNCa P细胞系。与空白对照组和阴性对照组比较,感染sh RNA慢病毒干扰载体各组中YAP、AR m RNA及蛋白表达水平明显下调(P=0.000),细胞增殖受到明显抑制(P=0.000),细胞凋亡明显增加(P=0.000)。结论:慢病毒介导sh RNA沉默YAP基因能有效下调YAP在LNCa P细胞中表达,并抑制细胞增殖、诱导细胞凋亡;YAP可能作为AR配体参与AR信号通路的调节。