IL-17 polymorphisms and asthma risk: a meta-analysis of 11 single nucleotide polymorphisms

Objective: There has been significant interest in the association between asthma and the polymorphisms of IL-17A and IL-17F for a period of time. This work aims to present a clearer relationship between asthma and the polymorphisms of IL-17A and IL-17F. Method: Searches were performed in Medline, EMBASE, and the Chinese National Knowledge Infrastructure (CNKI) databases. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the relationship between polymorphisms of IL-17A and IL-17F and asthma. Results: Nine studies comprising 3650 asthmatics and 3370 controls were included in this meta-analysis for all single nucleotide polymorphisms (SNPs) (2–6 per SNP). Our study examined the polymorphisms of IL-17F rs1889570 (C/T) (CC versus TT: OR?=?0.55, 95%CI?=?0.41–0.75; CT versus TT: OR?=?0.54, 95%CI?=?0.40–0.72; CC/CT versus TT: OR?=?0.55, 95%CI?=?0.42–0.72; CC versus CT/TT, OR?=?1.83, 95%CI?=?1.39–2.41), IL-17A rs4711998(A/G) (AA/AG versus GG: OR?=?0.67, 95%CI?=?0.46–0.98), and IL-17A rs3819024(A/G) (AA versus GG: OR?=?1.77, 95%CI?=?1.39–2.25) and found they were significantly related to the risk of asthma. Conclusion: Our systematic review showed that IL-17F rs1889570(C/T), IL-17A rs4711998(A/G) and IL-17A rs3819024(A/G) may be potential risk factors for asthma susceptibility.     

Functional Dosage of Muscarinic Cholinergic Receptor 3 Signalling,Not the Gene Dose,Determines Its Hypertension Pathogenesis

Background

Multiple quantitative trait loci for blood pressure (BP) have been localized throughout human and rodent genomes. Few of them have been functionally identified especially in humans, and little is known about their pathogenic directionality when identified. We focused on Chrm3 encoding the muscarinic cholinergic receptor 3 (M3R) as the causal gene for C17QTL1 in the Dahl salt-sensitive rat model.

绷带型角膜接触镜在翼状胬肉逆行撕除联合角膜缘干细胞移植术的应用

目的观察翼状胬肉患者逆行撕除术联合自体角膜缘干细胞移植术术后配戴绷带型角膜接触镜的疗效。方法将原发性单侧翼状胬肉患者78例(78只眼)随机分成试验组和对照组各39例(39只眼),两组均由同一组医生施行翼状胬肉逆行撕除术联合自体角膜缘干细胞移植术。试验组在手术结束即刻于角膜表面配戴绷带型角膜接触镜1片,对照组采取弹力绷带加压包扎。术后1天、2天、3天、1周进行随访,观察角膜上皮修复情况、角结膜刺激症状。结果试验组在角膜上皮修复、角结膜刺激症状评分方面的具体数据均优于对照组,差异有统计学意义(P<0.05)。结论翼状胬肉逆行撕除术联合自体角膜缘干细胞移植术后佩戴绷带型角膜接触镜能有效促进角膜上皮修复、减轻术后角膜刺激症状。     

我国放射卫生信息化建设现状与展望

自2009年国家个人剂量登记系统应用以来，我国放射卫生信息化建设已走过10个年头，建立了全国放射卫生信息平台，涵盖个人剂量、职业性放射性疾病与职业健康、医用辐射防护、食品放射性核素监测、职业性放射性疾病报告5个系统，截至2018年，采集监测数据800余万条，平台授权用户1 400余名。本文就10年来我国放射卫生信息化建设的现状进行分析与总结，探讨放射卫生信息化发展的重点和难点，提出建议等，以期推进放射卫生信息化建设工作，更好地为职业性放射性疾病的预防与控制服务，助力"健康中国"建设。     

移动DR床旁胸部摄影应用价值的评估

<正>随着科技的进步,医疗技术的不断提高,使得诸多影像学检查在临床疾病诊断和治疗工作中发挥了重要作用。20世纪90年代末推出了数字X线成像(digital radiography,DR)成像系统,DR数字影像具有成像质量高,成像速度快,辐射剂量小等优点通过该系统,可以直接将X线信号转换为数字信号,既缩短了拍摄时间,同时由于自带显示系统,医生可以第一时间获得有关患者病情的清晰影像资料,这对于     

免疫检查点抑制剂应用于晚期胃癌治疗的研究进展

我国属胃癌高发国家,且以进展期胃癌为主。以手术和化疗为主的多学科治疗无法有效改善晚期胃癌患者的预后。近年来,免疫检查点抑制剂类药物的疗效在诸多癌症中得到了证实,因此,该类药物在胃癌中的治疗效果也受到了广泛的关注。本文对近年来的相关研究成果进行综述,全面介绍了免疫检查点抑制剂类药物在胃癌治疗中的临床应用情况、联合用药情况以及不良反应。对于其他治疗均失败的晚期胃癌患者,PD-1抑制剂是一个可行的治疗选项,其代表药物派姆单抗是目前唯一被美国食品药品监督管理局批准应用于胃癌治疗的免疫抑制剂类药物,而我国国家食品药品监督管理总局尚未批准任何此类药物应用于胃癌的临床治疗。如何进一步提高治疗的客观缓解率,将会是后续临床和基础研究的一大焦点。     

Effect of stromal cell-derived factor-1/CXCR4 axis in neural stem cell transplantation for Parkinson’s disease

Previous studies have shown that neural stem cell transplantation has the potential to treat Parkinson’s disease,but its specific mechanism of action is still unclear.Stromal cell-derived factor-1 and its receptor,chemokine receptor 4(CXCR4),are important regulators of cell migration.We speculated that the CXCR4/stromal cell-derived factor 1 axis may be involved in the therapeutic effect of neural stem cell transplantation in the treatment of Parkinson’s disease.A Parkinson’s disease rat model was injected with 6-hydroxydopamine via the right ascending nigrostriatal dopaminergic pathway,and then treated with 5μL of neural stem cell suspension(1.5×104/L)in the right substantia nigra.Rats were intraperitoneally injected once daily for 3 days with 1.25 mL/kg of the CXCR4 antagonist AMD3100 to observe changes after neural stem cell transplantation.Parkinson-like behavior in rats was detected using apomorphine-induced rotation.Immunofluorescence staining was used to determine the immunoreactivity of tyrosine hydroxylase,CXCR4,and stromal cell-derived factor-1 in the brain.Using quantitative real-time polymerase chain reaction,the mRNA expression of stromal cell-derived factor-1 and CXCR4 in the right substantia nigra were measured.In addition,western blot assays were performed to analyze the protein expression of stromal cell-derived factor-1 and CXCR4.Our results demonstrated that neural stem cell transplantation noticeably reduced apomorphine-induced rotation,increased the mRNA and protein expression of stromal cell-derived factor-1 and CXCR4 in the right substantia nigra,and enhanced the immunoreactivity of tyrosine hydroxylase,CXCR4,and stromal cell-derived factor-1 in the brain.Injection of AMD3100 inhibited the aforementioned effects.These findings suggest that the stromal cell-derived factor-1/CXCR4 axis may play a significant role in the therapeutic effect of neural stem cell transplantation in a rat model of Parkinson’s disease.This study was approved by the Animal Care and Use Committee of Kunming Medical University,China(approval No.SYXKK2015-0002)on April 1,2014.