Basic fibroblast growth factor promotes doxorubicin resistance in chondrosarcoma cells by affecting XRCC5 expression

Chondrosarcoma is the second most common form of bone cancer and is characterized by its ability to produce an extracellular matrix of the cartilage. High-grade chondrosarcoma is highly aggressive and can metastasize to other parts of the body. Chondrosarcoma is resistant to both conventional chemotherapy and radiotherapy; hence, the current main treatment is still surgical resection. Doxorubicin (Dox) has been shown to significantly improve patient survival compared with untreated chondrosarcoma. However, for patients with metastasis, surgical resection alone can hardly treat them. In addition, drug resistance is one of the leading causes of death in patients with chondrosarcoma. Secreted proteins can mediate cell-cell interactions in the cancer microenvironment, which may be associated with the development of drug resistance. In the present study, chondrosarcoma cells were treated with Dox, the conditioned medium was then collected and changes in secreted proteins were analyzed using the antibody array. Results showed that the Dox-treated group had the highest secretion of basic fibroblast growth factor (bFGF), indicating the effect of bFGF on Dox sensitivity in chondrosarcoma. Furthermore, lentiviral-mediated knockdown and treatment of exogenous recombinant protein were employed to further investigate the effect of bFGF on Dox resistance. Results demonstrated that bFGF can promote the expression of X-ray repair cross-complementing protein 5 (XRCC5), leading to Dox resistance. Secreted bFGF is likely to be detected in serum, in addition to being a biomarker for predicting Dox resistance, the combination of Dox and bFGF/XRCC5 blockers may be a new therapeutic strategy to improve the efficacy of Dox in future.     

H型高血压患者舌面诊图像颜色特征参数分析＊

目的 分析H型高血压患者的舌面诊图像颜色参数特征，探讨H型高血压患者的舌诊、面诊变化规律。方法 运用上海中医药大学自行研制的Smart TCM-1型中医舌面一体仪，采集高血压患者舌面诊图像，提取特征参数，分析健康对照组、H型高血压组与非H型高血压组患者舌面颜色参数特征。结果 ①在舌色各项参数中，H型高血压组舌尖部R值、B值、V值均显著小于健康对照组（P < 0.01）；非H型高血压组舌尖部B值显著小于健康对照组（P < 0.01），S值较健康对照组显著增大（P < 0.05）；H型高血压组舌尖部R、V值均明显小于非H型高血压组（P < 0.05）。在舌苔各项参数中，H型高血压组舌中H值、V值均明显小于健康对照组（P < 0.05）；非H型高血压组舌中V值、舌右V值均显著小于健康对照组（P < 0.01）；H型高血压组舌中H值明显小于非H型高血压组（P < 0.05），右侧舌苔S值明显大于非H型高血压组（P < 0.05）。②H型高血压组面色参数鼻G值、下颌G值、口唇R值、口唇V值均明显小于健康对照组（P < 0.05）；非H型高血压组前额H值、目眶H值、脸颊H值、鼻H值、下颌H值、整体H值均明显大于健康对照组（P < 0.05）；H型高血压组前额H值、目眶G值、目眶H值、脸颊H值、鼻G值、鼻H值、下颌R值、下颌G值、下颌H值、下颌V值、口唇R值、口唇G值、口唇V值、整体R值、整体G值、整体H值、整体V值均明显小于非H型高血压组（P < 0.05）。结论 H型高血压患者苔色偏黄，以舌中部为主，且舌右侧黄苔积聚较明显；H型高血压患者面色为黄中带红，口唇、下颌部更为晦暗。H型高血压患者的舌、面诊特征参数的变化，与高血压病阳亢湿盛病机相符。     

Systematic review of optical coherence tomography usage in the diagnosis and management of basal cell carcinoma

Optical coherence tomography (OCT) is a noninvasive imaging tool used in vivo in real time for diagnosis, treatment delineation and monitoring of basal cell carcinoma (BCC). Features of BCC on OCT have been widely described and reviewed. However, the diagnostic accuracy of OCT in these various applications is unclear. We systematically reviewed the literature to assess the accuracy of OCT in diagnosis and management of BCC using the Embase and Medline databases. In total 179 unique references were identified in the initial search, of which 22 studies with 556 histologically proven BCCs were eligible. Assessment of the quality of eligible studies was undertaken using the STROBE criteria. Data extraction and quality assessment were performed independently by the two authors. This systematic review provides an overview of the clinical applications of OCT in the diagnosis and management of BCC. OCT has been suggested to be useful in the diagnosis, treatment planning and treatment monitoring of BCC. As the technology improves and its utility increases, further studies with good methodological quality will be needed to implement OCT into daily practice.     

Role of macrophages in peripheral nerve injury and repair

Resident and inflammatory macrophages are essential effectors of the innate immune system. These cells provide innate immune defenses and regulate tissue and organ homeostasis. In addition to their roles in diseases such as cancer, obesity and osteoarthritis, they play vital roles in tissue repair and disease rehabilitation. Macrophages and other inflammatory cells are recruited to tissue injury sites where they promote changes in the microenvironment. Among the inflammatory cell types, only macrophages have both pro-inflammatory(M1) and anti-inflammatory(M2) actions, and M2 macrophages have four subtypes. The co-action of M1 and M2 subtypes can create a favorable microenvironment, releasing cytokines for damaged tissue repair. In this review, we discuss the activation of macrophages and their roles in severe peripheral nerve injury. We also describe the therapeutic potential of macrophages in nerve tissue engineering treatment and highlight approaches for enhancing M2 cell-mediated nerve repair and regeneration.     

我院药物代谢酶和药物作用靶点基因检测与精准药学服务实践与总结

目的回顾我院药物代谢酶和药物作用靶点相关基因检测与精准药学服务实践过程,总结经验,与同行分享。方法从准备工作、相关检测项目的确定,学术推广、项目优化和开展情况等方面详细阐述我院基因检测开展过程与精准药学服务情况。结果根据临床需求,我院已开展了以心脑血管药和抗精神病药为主的27种药物,26项检测,2018年全年位1587名患者提供个体化用药建议,受到临床医生和患者欢迎。结论基于代谢酶和药物作用靶点相关基因检测的个体化用药建议是临床药师参与精准治疗的重要途径,有助于医生和药师之间的沟通,有利于提高药学服务水平。     

益母草对子宫的药理作用研究进展

益母草是著名的经产良药,具有"调经"功效,自古以来是治疗妇人"经产带下"之良药。子宫是益母草"调经"功效的重点靶器官。本文通过对益母草对子宫的药理作用研究进行梳理,显示益母草对子宫有双向调节子宫收缩活动、调节子宫肌电、保护子宫内膜和促进子宫内膜复旧、抗子宫内膜炎等多种作用,其作用的发挥与益母草的入药品种与炮制、提取成分和子宫状态密切相关。本文对指导益母草质量提升和临床应用有参考意义。     

碘乙酸钠诱导的大鼠膝骨关节炎模型肠道菌群变化及其潜在影响

目的:研究碘乙酸钠诱导的大鼠膝骨关节炎(KOA)模型肠道菌群变化情况,探究肠道菌群与KOA的潜在联系。方法:将SPF级大鼠分为空白对照组和KOA组,通过膝关节局部注射碘乙酸钠制造大鼠KOA模型。通过16SrDNA检测大鼠粪便中的肠道菌群变化情况,蛋白印记法检测结肠组织中NF-κB和TNF-α蛋白表达,RT-qPCR检测结肠组织中Caspase-1和IL-1β基因表达情况,苏木精-伊红染色观察结肠黏膜通透性变化,苏木精-伊红染色观察关节滑膜和软骨组织的病理变化情况。ELISA检测血液上清中LBP,IL-1β,TNF-α及IL-10炎症因子水平。结果:与空白对照组相比,从KOA组中筛选出明显变化的肠道菌群,以Akkermansia和疣微菌门变化最为显著,结肠黏膜通透性增加,结肠组织中NF-κB p65及TNF-α蛋白表达升高,结肠组织中Caspase-1和IL-1β基因表达升高,血液中促炎因子LBP,IL-1β及TNF-α蛋白含量升高,抗炎因子IL-10蛋白含量降低。结论:KOA病理状态下肠道菌群发生变化,结肠炎症反应增强,结肠炎症反应或许在提高全身炎症反应水平、促进与肠道菌群相关的KOA的病理进程中起到重要的桥梁作用。