青蒿素哌喹片红外光谱鉴别方法的探讨

目的：对青蒿素哌喹片进行鉴别。方法：采用不同溶剂提取青蒿素哌喹片中的青蒿素和哌喹,分别测定各自红外谱图。结果：除了青蒿素红外光谱图在1 574 cm-1 处出现一组哌喹干扰峰外,青蒿素哌喹片经提取后的红外谱图均与《药品红外光谱集》中青蒿素和哌喹标准谱图一致。结论：该方法稳定可靠、专属性强,可用于青蒿素哌喹片的鉴别。     

儿科DRG病种组成本比价关系研究

目的:测算样本医院儿科109个DRG病种组成本,根据核算结果开展病种组比价研究,以期理顺病种组比价关系。方法:收集儿科2020年病种费用与成本相关数据,利用费用成本转换法测算儿科病种成本,采用统计描述方法分析儿科病种组费用、成本及比价关系。结果:58.71%的儿科DRG病种组呈现不同程度亏损;儿科DRG病种组费用与成本之间存在偏离;儿科DRG病种组比价关系尚未理顺。结论:建议有针对性地调整儿科医疗服务价格,突显儿童医疗服务价值,同时秉持比价合理的原则,推行以成本为基础的DRG病种组定价制度。     

Overexpression of the NOTCH ligand JAG2 in malignant plasma cells from multiple myeloma patients and cell lines

The NOTCH ligand, JAG2, was found to be overexpressed in malignant plasma cells from multiple myeloma (MM) patients and cell lines but not in nonmalignant plasma cells from tonsils, bone marrow from healthy individuals, or patients with other malignancies. In addition, JAG2 overexpression was detected in 5 of 5 patients with monoclonal gammopathy of undetermined significance (MGUS), an early phase of myeloma disease progression. This overexpression appears to be a consequence of hypomethylation of the JAG2 promoter in malignant plasma cells. An in vitro coculture assay was used to demonstrate that JAG2 induced the secretion of interleukin-6 (IL-6), vascular endothelial growth factor (VEGF), and insulin-like growth factor-1 (IGF-1) in stromal cells. Further, the induction of IL-6 secretion was blocked in vitro by interference with anti-Notch-1 monoclonal antibodies raised against the binding sequence of Notch-1 with JAG2. Taken together, these results indicate that JAG2 overexpression may be an early event in the pathogenesis of multiple myeloma involving IL-6 production.     

Association between SERPING1 rs2511989 polymorphism and age-related macular degeneration: Meta-analysis

AIM: To investigate the association between SERPING1 rs2511989 (G>A) polymorphism and age-related macular degeneration (AMD). METHODS: A number of electronic databases (up to July 15, 2014) were searched independently by two investigators. A Meta-analysis was performed on the association between SERPING1 rs2511989 polymorphism and AMD. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were estimated. RESULTS: Eight studies with 16 cohorts consisting of 9163 cases and 6813 controls were included in this Meta-analysis. There was no significant association between rs2511989 polymorphism and AMD under all genetic models in overall estimates (A vs G: OR= 0.938, 95%CI =0.858-1.025; AA vs GG:OR =0.871, 95%CI =0.719-1.056; AG vs GG: OR =0.944, 95%CI =0.845-1.054; AA+AG vs GG: OR =0.927, 95% CI =0.823-1.044; AA vs AG+GG: OR =0.890, 95%CI =0.780-1.034). Cumulative Meta-analyses also showed a trend of no association between rs2511989 polymorphism and AMD as information accumulated by year. Subgroup analysis and Meta-regression analysis indicated that age-matching status was the main source of heterogeneity. Sensitivity analysis found the results in overall comparisons and subgroup comparisons of white subjects under the allele model were found to have significantly statistical differences after studies deviating from Hardy-Weinberg equilibrium (HWE) were excluded (overall: OR=0.918, 95%CI = 0.844-0.999, P =0.049; whites: OR =0.901, 95%CI = 0.817-0.994, P =0.038). However, the results were not sufficiently robust for further sensitivity analysis and statistical differences disappeared on applying Bonferroni correction (with a significance level set at 0.05/25). CONCLUSION: This Meta-analysis indicates that SERPING1 rs2511989 polymorphism and AMD tend to have no association with each other. Age matching status is a big confounding factor, and more studies with subtle designs are warranted in future.     

放疗联合动脉化疗栓塞及酪氨酸激酶抑制剂治疗肝癌合并瘤栓的长期结果

目的 探讨调强放疗联合动脉化疗栓塞及酪氨酸激酶抑制剂（tyrosine kinase inhibitor,TKI）治疗肝细胞性肝癌合并静脉瘤栓患者的长期随访结果。方法 回顾性分析2015年10月至2018年10月北京大学肿瘤医院收治的63例肝细胞性肝癌合并静脉瘤栓且无远处转移患者,其中28例接受调强放疗联合动脉化疗栓塞及索拉非尼（A组）,35例接受调强放疗联合动脉化疗栓塞（B组）。采用倾向评分配比法,分析联合与不联合索拉非尼组的治疗疗效。结果 中位随访时间62个月。A组和B组的中位生存时间分别为19.0和15.2个月（χ²=3.15,P=0.076）,A组的中位无进展生存时间为10.7个月,高于B组的8.6个月（χ²=3.99,P=0.046）。经过倾向评分配比平衡组间差异后,A组的中位生存时间为30.6个月,明显高于B组的15.2个月（χ²=5.34,P=0.023）;A组的中位无进展生存时间12.5个月,仍然高于B组的8.3个月（χ²=4.79,P=0.026）。全组10例（15.9%）患者治疗中出现3级血液学毒性,7例（11.1%）患者出现3级肝功能异常。A组较B组的皮肤反应、手足综合征和腹泻发生率高,但均为1~2级不良反应。全组无4级不良反应,无放射诱发肝病及治疗相关死亡发生。结论 长期随访结果显示,肝细胞性肝癌合并静脉瘤栓患者在调强放疗加动脉化疗栓塞的基础上联合TKI提高了疗效。     

Extraskeletal osteosarcoma of penis: A case report

Extraskeletal osteosarcoma (EOS) is rare and commonly arises in the retroperitoneum, limbs, head and neck. There is no significant difference between EOS and other malignant tumors in soft tissue. Localized pain and swelling are the common presenting symptoms. Clinical diagnosis of EOS is difficult, imaging techniques may be helpful and careful, and the histopathological analysis is necessary. The common histological variants of EOS include: osteoblastoma, chondroblastoma, and fibroblastoma, and other unusual subtypes were reported occasionally. It should be distinguished with myositis ossificans, malignant mesenchymoma, giant cell tumor and parosteal osteosarcoma. We present an EOS arising in the penis. The primary site and histological category of the tumor were extremely rare. We hope the case will be helpful to the recognition of clinical signs, iconography and histopathology of EOS.     

自噬活性的降低增加人鼻咽癌CNE-2细胞的放射敏感性

目的 研究自噬与人鼻咽癌CNE-2细胞放射敏感性之间的关系。方法 采用慢病毒介导的RNA干扰技术建立稳定沉默自噬相关基因ATG5的人鼻咽癌CNE-2细胞系,实验分为未转染的CNE-2细胞组(对照组)、转染NC-shRNA的CNE-2细胞组(NC组)及转染ATG5-shRNA的CNE-2细胞组(ATG5组),应用CCK-8法、流式细胞术及克隆形成实验检测细胞增殖、凋亡及放射敏感性的变化。结果 CCK-8实验结果显示,与对照组和NC组相比,各剂量点ATG5组的细胞存活率均显著降低(F=3.755、46.086、8.609、44.160,P<0.05),绘制细胞生存曲线可见下调ATG5的表达后可以增加CNE-2细胞的放射敏感性;流式细胞术结果显示,经6 Gy X射线照射后,ATG5组细胞的凋亡率较NC组及对照组明显升高(F=394.876,P<0.05);克隆形成实验结果提示沉默ATG5基因可增加鼻咽癌CNE-2细胞的放射敏感性。结论 降低鼻咽癌CNE-2细胞的自噬活性可以增强其放射敏感性。     

通心络胶囊联合西药治疗急性心肌梗死患者的疗效及对炎性因子的影响

目的:探讨通心络胶囊联合西药治疗急性心肌梗死患者的疗效及对患者炎性因子的影响。方法:选取2015年3月至2017年3月邢台市第三医院收治的急性心肌梗死患者94例,随机分为观察组与对照组,各47例。对照组采用西药治疗,观察组在对照组基础上结合通心络胶囊治疗。2组疗程均为14 d。比较2组治疗疗效,治疗前后心功能、炎性因子和心肌酶变化。结果:观察组总有效率(91.49%)高于对照组(72.34%)(P0.05)。2组治疗后每搏心输出量(SV)、左心室射血分数(LVEF)增加而左心室收缩末期容积(LVEDV)降低(P0.05);观察组治疗后SV、LVEF高于对照组而LVEDV低于对照组(P0.05)。2组治疗后肿瘤坏死因子-α(TNF-α)、C反应蛋白(CRP)和白介素-6(IL-6)降低(P0.05);观察组治疗后TNF-α、CRP和IL-6低于对照组(P0.05)。2组治疗后肌钙蛋白I(c Tn I)、肌酸激酶(CK)、肌酸激酶同工酶(CK-MB)降低(P0.05);观察组治疗后c Tn I、CK和CK-MB低于对照组(P0.05)。结论:通心络胶囊联合西药治疗急性心肌梗死患者疗效显著,且可改善患者心功能、炎性反应和心肌酶。