盐酸左氧氟沙星注射液与维脑路通注射液配伍稳定性

目的 考察25℃、37℃下0～6h内，盐酸左氧氟沙星注射液与维脑路通注射液配伍稳定性。方法采用紫外分光光度法测定配伍后上述条件下盐酸左氧氟沙星的含量变化及稳定性。结果左氧氟沙星注射液与维脑路通注射液配伍后外观、含量、pH均无显著变化。结论在25℃、37℃下，0～6h内，左氧氟沙星注射液与维脑路通注射液配伍基本稳定。     

前列腺癌细胞株Du145裸鼠胫骨部骨肿瘤转移模型的建立

目的:建立一种裸鼠前列腺癌骨转移模型,观察肿瘤局部生长和远处转移情况,并进一步探讨其应用价值。方法:9只6周龄雄性BALB/C裸鼠麻醉后,将前肢及左后肢固定,以1 m l TB针筒-29G针头从胫骨头关节窝,刺入骨髓腔缓缓注入人前列腺癌Du145细胞悬液30μl(约5×106个细胞)至骨髓腔,以建立前列腺癌骨转移模型。观察裸鼠生命体征变化。于濒死状态下处死,取右后肢及其附近淋巴结、肺脏和肝脏等标本,用40 m l/L甲醛固定、石蜡包埋、苏木精-伊红染色后显微镜下观察。结果:9只裸鼠中有6只模型建立成功。接种后平均48 d裸鼠出现跛行现象,右后肢胫骨部可触及米粒大小的包块,质硬,进一步发展至小鼠行走障碍。55 d后出现恶病质,解剖后发现右后肢胫骨部骨质疏松,局部有“腐肉”样组织突出髓腔,填塞肌肉间隙,病理证实为肿瘤组织。肝脏泛黄、被膜皱缩,镜下呈急性重型肝炎的病理改变。结论:胫骨内注射细胞悬液制作裸鼠前列腺癌骨转移模型较好地模拟了人前列腺癌在骨骼微环境中的生长及转归情况,是研究前列腺肿瘤骨转移的适宜模型。     

静脉注射人免疫球蛋白（pH4）不溶性微粒检测方法的建立

目的建立静脉注射人免疫球蛋白（pH4）不溶性微粒检测的方法。方法光阻法;溶剂：微粒检查用水。结果测定了4个生产企业生产的12批静脉注射人免疫球蛋白（pH4）样品,平均微粒加样回收率为101.2%。结论本方法简便、灵敏、准确,可用于静脉注射人免疫球蛋白（pH4）的质量控制。     

胚胎移植术后17例宫内外同时妊娠分析及文献复习

目的探讨胚胎移植术后宫内外同时妊娠的发生率、影响因素、诊断和治疗,以加强临床医生对宫内外复合妊娠的认识。方法回顾性分析我中心2011年1月1日至2014年12月31日胚胎移植术后发生宫内外同时妊娠的17例病例的临床资料。结果我中心2011年1月至2014年12月31日试管婴儿助孕中宫内外同时妊娠发生率为0.26%(17/6 623),全部17例宫内外同时妊娠均由阴道超声确诊。其中腹腔镜手术切除妊娠侧输卵管14例,腹腔镜下妊娠侧宫角楔形切除1例,经阴道穿刺减胎手术1例,宫内胎儿均存活;保守治疗1例,宫内胚胎停育。结论经阴道超声早期诊断、动态监测是提高宫内外同时妊娠诊断率的可行方法,腹腔镜手术是治疗宫内外同时妊娠的有效方法。     

Development of a novel quantitative real‐time PCR assay with lyophilized powder reagent to detect African swine fever virus in blood samples of domestic pigs in China

African swine fever (ASF) is a devastating disease, which is causing huge economic losses in China. Therefore, it is urgent to provide a rapid, highly specific and sensitive diagnostic method for the detection of African swine fever virus (ASFV), the ASF infectious agent. In this study, a novel quantitative real‐time polymerase chain reaction (qPCR) assay with lyophilized powder reagents (LPR), targeting the major structural protein p72 gene, was established for the detection of ASFV. This assay had many advantages, such as saving time and money, good sensitivity and repeatability. The sensitivity of this assay was 100 copies/μl of ASFV plasmid templates, and the assay showed 10‐fold greater sensitivity than a qPCR assay recommended by OIE. Furthermore, specificity analysis showed that qPCR with LPR for ASFV had no cross‐reactivity with other important swine pathogens. In clinical diagnoses of 218 blood samples of domestic pigs in China, the positive rate of the diagnosis of ASFV by qPCR with the LPR and commercial kit reached 80.73% (176/218) and 76.61% (167/218) respectively. The coincidence rate between the two assays is 92.20% (201/218), and kappa value is 0.768 (p < .0001) by SPSS analysis. The overall agreement between the two assays was 95.87% (209/218). Further Pearson correlation and linear regression analysis showed a significant correlation between the two assays with an R² value of 0.9438. The entire procedure, from specimen processing to result reporting, can be completed within 2 hr. Our results demonstrated that the qPCR‐LPR assay is a good laboratory diagnostic tool for sensitive and efficient detection of ASFV.     

276例皮试仪皮试法阳性反应结果判断与影响因素分析

目的探讨皮试仪皮试法阳性反应的结果判断与影响因素。方法对276例皮试仪法皮试阳性患者以皮内注射法进行复测,验证皮试仪皮试法的准确性,并分析假阳性结果的原因。结果 276例阳性反应患者中,非典型阳性反应72例,占26.09%;患者复测后阳性200例,假阳性76例,患者用药后均无药物反应。不同性别、年龄段、最近3d有无连续使用同种类抗生素、有无同类药物过敏史的患者假阳性率比较,差异有统计学意义(均P0.01);不同药物种类、其他过敏史、家族过敏史比较,差异无统计学意义(均P0.05)。结论皮试仪说明书上的阳性结果判断标准有待于进一步修正和完善;临床需严格按照操作规程皮试,并重点观察婴幼儿、妇女及未使用过同类抗生素人群,积极预防过敏反应。     

Multiple injections of leukoreduced platelet rich plasma reduce pain and functional impairment in a canine model of ACL and meniscal deficiency

Platelet rich plasma (PRP) is used to treat many musculoskeletal disorders. We used a canine model to determine the effects of multiple intra‐articular injections of leukoreduced PRP (ACP) on anterior cruciate ligament healing, meniscal healing, and progression of osteoarthritis (OA). With Animal Care and Use Committee (ACUC) approval, 12 dogs underwent partial ACL transection and meniscal release in one knee. At weeks 1, 2, 3, 6, and 8 after insult, dogs were treated with intra‐articular injections (2 ml) of either ACP (n = 6) or saline (n = 6). Dogs were assessed over 6 months to determine comfortable range of motion (CROM), lameness, pain, effusion, kinetics, and radiographic and arthroscopic assessments. At 6‐month endpoint, dogs were assessed for ACL material properties and histopathology. Saline‐treated dogs had significantly (p < 0.04) more CROM loss, significantly (p < 0.01) more pain, significantly (p < 0.05) more severe lameness, significantly (p < 0.05) lower function, and significantly (p < 0.05) lower %Total Pressure Index in affected hindlimbs compared to ACP‐treated dogs. Radiographic OA increased significantly (p < 0.01) over time within each group. Arthroscopically, saline‐treated knees showed moderate to severe synovitis, further ACL disruption, and medial compartment cartilage loss, and ACP‐treated knees showed evidence of ACL repair and less severe synovitis. ACL material properties in ACP‐treated knees were closer to normal than in saline‐treated knees, however, the differences were not statistically significant. ACL histopathology was significantly (p< 0.05) less severe in ACP‐treated knees compared to saline‐treated knees. Five intra‐articular injections of leukoreduced PRP had beneficial effects for ACL healing, improved range of motion, decreased pain, and improved limb function for up to 6 months in this model. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:607–615, 2016.