正电子放射性药物自动分装注射系统的设计与测试

目的 设计研发新型正电子放射性药物自动分装注射系统,以实现精准药物活度注射,简化注射流程,降低职业照射。方法 选择钨合金作为屏蔽材料,采用基于单片机控制步进电机驱动技术,设计机械驱动模块、管路系统、控制软件。制作设备及相关配套装置。测量防护效能和性能。结果 自动分装注射放射性药物时间约60 s,设备50次稳定性测试空白试验的成功率100%。系统整体注射活度的分装误差≤3%;设备箱体屏蔽40 mmPb,台面屏蔽60 mmPb,隔离防护屏蔽15 mmPb,内置钨合金原液罐50 mmPb。距离运行中设备30 cm处平均剂量率为1.44 μSv/h。操作人员肢端辐射剂量较使用注射器防护套注射操作降低99%以上。结论 自动分装注射系统操作简便,分装精度高,重复性好,防护安全,达到设计功能和放射防护要求。     

Prenatal diagnosis of fetal right ventricular diverticulum with massive pericardial effusion in one of monochorionic diamniotic twins: a case report with a favorable outcome following in utero pericardiocentesis

BackgroundCongenital ventricular diverticulum is a rare abnormality that may occur as an isolated malformation. Most cases are accompanied by pericardial effusion. Prenatal counseling can be difficult because the prognosis is uncertain and there is no consensus approach to prenatal management.Case presentation: We describe a case of congenital cardiac diverticulum complicated by large pericardial effusion in one of monochorionic diamniotic twins. The case was diagnosed by ultrasonography at 21 weeks of gestation. Therapeutic pericardiocentesis at 22 weeks resulted in complete resolution of the effusion and led to a favorable fetal outcome. We summarize the interventions and pregnancy outcomes in cases of cardiac diverticula reported in the literature.ConclusionsBetter awareness of clinical features, in utero therapies, and pregnancy outcomes could help define and improve prenatal management of congenital ventricular diverticula.     

患者报告结局在人类免疫缺陷病毒感染临床研究与实践中的应用进展

得益于高效抗反转录病毒治疗的发展,人类免疫缺陷病毒(human immunodeficiency virus,HIV)感染已成为可控的慢性疾病,患者对生命质量的要求日益增高,临床也逐渐向"以患者为中心"的诊疗新模式发展,以优化HIV感染者的长期管理。其中,以患者主观感受为导向的患者报告结局作为一类新的评价指标,有助于临床工作者将HIV感染者的治疗需求、对健康的偏好和价值取向纳入临床决策,进而提升患者的满意度。然而在我国HIV领域中,患者报告结局尚未得到广泛应用。本研究对患者报告结局的基本概念和内容进行阐述,并结合文献资料综述其在国内外HIV感染临床研究及实践中的进展,以期为患者报告结局在我国HIV领域中的普及和发展提供参考。     

Identification of key genes and pathways in discoid lupus skin via bioinformatics analysis

Discoid lupus erythematosus (DLE) is the most common skin manifestation of lupus; however, the molecular mechanisms underlying DLE remain unknown. Therefore, we aimed to identify key differentially expressed genes (DEGs) in discoid lupus skin and investigate their potential pathways.To identify candidate genes involved in the occurrence and development of the disease, we downloaded the microarray datasets {"type":"entrez-geo","attrs":{"text":"GSE52471","term_id":"52471"}}GSE52471 and {"type":"entrez-geo","attrs":{"text":"GSE72535","term_id":"72535"}}GSE72535 from the Gene Expression Database (GEO). DEGs between discoid lupus skin and normal controls were selected using the GEO2R tool and Venn diagram software (http://bioinformatics.psb.ugent.be/webtools/Venn/). The Database for Annotation, Visualization, and Integrated Discovery (DAVID), Enrichr, and Cytoscape ClueGo were used to analyze the Kyoto Encyclopedia of Gene and Genome pathways and gene ontology. Protein-protein interactions (PPIs) of these DEGs were further assessed using the Search Tool for the Retrieval Interacting Genes version 10.0.Seventy three DEGs were co-expressed in both datasets. DEGs were predominantly upregulated in receptor signaling pathways of the immune response. In the PPI network, 69 upregulated genes were selected. Furthermore, 4 genes (CXCL10, ISG15, IFIH1, and IRF7) were found to be significantly upregulated in the RIG-I-like receptor signaling pathway, from analysis of Enrichr and Cytoscape ClueGo.The results of this study may provide new insights into the potential molecular mechanisms of DLE. However, further experimentation is required to confirm these findings.     

子宫内膜功能亢进性疾病的“异病同治”诊治研究思路＊

笔者根据现代临床子宫内膜的病理演变过程结合中医“异病同治”理念，提出“子宫内膜功能亢进性疾病”概念，涵盖5种常见的子宫内膜疾病：无排卵性异常子宫出血（Abnormal Uterine Bleeding Ovulatory dysfunction，AUB-O），子宫内膜息肉（Endometrial Polyp，EP），子宫内膜异位症（Endometriosis，EMs），子宫腺肌病（Adenomyosis，AM），子宫内膜癌（Endometrial Carcinoma，EC）。基于文献的汇总，分析得到此类疾病的子宫内膜病理演变与中医病因病机的关联性，为寻找关键通路、创新性治疗此类疾病提供了重要的参考方向，对深化中医妇科学常见疾病的共性病因病机提供了理论依据和探索思路。     

加速康复外科理念降低卵巢癌患者围术期阿片类药物使用的临床观察

目的 探讨加速康复外科(FTS)理念能否有效降低卵巢癌患者围术期阿片类药物的使用.方法 选择2017年1月至2019年12月于十堰市妇幼保健院接受腹腔镜手术的卵巢癌患者95例,分为对照组(45例)和FTS组(40例).记录并比较两组患者术中输液量、住院时间、出院时及末次随访时疼痛视觉模拟评分(VAS)、住院期间阿片类药物的使用率、出院时阿片类药物的处方率、出院后阿片类药物的再次处方率以及患者的满意度.结果 FTS组患者术中输液量、住院时间均明显低于对照组(P<0.05).两组患者入院时、出院时以及末次随访时VAS评分相比,差异均无统计学意义(P>0.05),但FTS组患者住院期间阿片类药物的使用率(55.00％)、出院时阿片类药物的处方率(32.50％)以及出院后阿片类药物的再次处方率(15.00％)均明显低于对照组(P<0.05).FTS组和对照组的患者满意度分别为92.50％和80.00％,FTS组明显高于对照组(P<0.05).结论 FTS理念可加快卵巢癌患者腹腔镜术后的康复,在有效控制疼痛症状的同时可显著降低阿片类药物的使用.     

应用磁共振波谱研究针刺合谷穴前额叶神经递质Glu与GABA相关性＊

目的 探讨手针针刺健康受试者右侧合谷穴，前额叶Glu⁺、Glx⁺及GABA⁺浓度变化差异及相关性，从兴奋和抑制性神经递质关系方面初步探讨针刺效应的脑机制。方法 录入健康志愿者76名，随机接受手针及纤毛针两种刺激，并采集刺激前和刺激时BOLD功能磁共振脑成像（fMRI）及磁共振波谱（MRS）数据，分析手针和纤毛针组刺激前与刺激时Glu⁺、Glx⁺、GABA⁺浓度差异及相关性，以及Glu⁺、Glx⁺与GABA⁺浓度的相关性。结果 手针及纤毛针组间和组内各亚组（依据不同BOLD信号）针刺前与针刺时Glu⁺、Glx⁺、GABA⁺浓度差异无统计学意义（P均>0.05）。但手针组整组的Glu⁺、Glx⁺、GABA⁺，零、负激活亚组的Glu⁺、Glx⁺和零激活GABA⁺针刺前与针刺时浓度呈正相关（P均<0.05）。针刺前手针组整组、零、负激活亚组的Glu⁺、Glx⁺均与GABA⁺呈正相关q（P均<0.05）；纤毛针组整组、正、负激活亚组Glu⁺、Glx⁺均与GABA⁺及零激活Glu⁺与GABA⁺均呈正相关（P均<0.05）；针刺时手针组整组、负激活亚组Glu⁺与GABA⁺呈正相关，零激活亚组Glx⁺与GABA⁺呈正相关（P均<0.05）。结论 针刺前与针刺时Glu⁺、Glx⁺与GABA⁺多呈正相关，可作为针刺脑机制研究的神经递质观察指标。