Sarcomatoid Carcinoma of Hypopharynx： A Report of 5 Cases

目的探讨下咽肉瘤样癌的临床及病理学特点,为下咽肉瘤样癌的诊治提供参考依据,提高对肉瘤样癌的诊断、治疗及其预后的认识。方法分析2010年1月—2014年9月我院治疗的5例下咽肉瘤样癌患者的临床资料,包括诊疗过程、病理特征等。结果 5例患者均经过不同的手术方式,其中咽后壁扩大切除1例,梨状窝扩大切除2例,全后、全下咽、全食管切除2例;肉瘤样癌肉瘤样成分与癌成分共存,且之间有一定的移行,CK、vimentin均表达阳性,P63阳性4例。5例患者均定期随访。结论下咽肉瘤样癌有其特殊的生物学行为及病理学特点,是一种不同于其他类型的恶性肿瘤,具有自身病理特征,预后情况各不相同,外科手术仍是首选治疗方法,术后辅助放化疗。Objective To explore the biological behavior and clinical features of the sarcomatoid carcinoma（SC） of hypopharynx for improving the diagnosis,treatment and judgment of prognosis of the tumor.Methods Clinical data,including treatment process and pathology features of the 5 cases of SC underwent operation in our department from January 2010 to September 2014 was analyzed retrospectively.Results All the five patients underwent different surgical procedures and all survived,one case received pharyngeal extended resection,tow cases received pyriform extended resection and tow cases received total throat、swallow、esophagectomy resection.The biological of sarcomatoid carcinoma of head and neck performed components and cancer components coexisted,and has a certain shift between them,CK and vimentin expressed was positive in all cases,P63 was positive in 4 cases.All patients were followed up regularly.Conclusion Sarcomatoid carcinoma of hypopharynx has its special biological behavior and pathology characteristics,it is different from other types of malignant tumors,and has its own pathological features,surgeryis is still the preferred method,postoperative assistance chemotherapy is needed

Research on T Lymphocyte Subsets and NK Cells Activity in Peripheral Blood of Hypopharyngeal Squamous Cell Carcinoma

目的:分析下咽鳞状细胞癌患者外周血T淋巴细胞亚群和NK细胞活性情况,旨在为相关研究工作提供参考资料。方法:择取2011年6月-2016年5月本院收治的95例下咽鳞状细胞癌病患为病例组,另取此期间内来本院接受健康检查的72例志愿者为正常组。使用流式细胞仪对病患开展相关检查,分析病例组与正常组的淋巴细胞亚群、NK活性情况以及不同临床分期的下咽癌病患外周血T淋巴细胞亚群以及NK细胞活性之间的关系。结果:与正常组相比,病例组的NK细胞、总B淋巴细胞、总T淋巴细胞、辅助/抑制T细胞、辅助T细胞偏低(P0.05)。Ⅰ~Ⅱ期病患辅助T淋巴细胞比Ⅲ~Ⅳ期者略高(P>0.05)。Ⅰ~Ⅱ期病患抑制T淋巴细胞值比Ⅲ~Ⅳ期者低(P0.05)。Ⅰ~Ⅱ期病患外周血NK细胞数比Ⅲ~Ⅳ期者略高(P>0.05)。结论:下咽鳞状细胞癌病患的免疫功能异常,且随着疾病的进展,细胞免疫和体液免疫均有所降低,证实免疫功能紊乱在疾病进展中发挥了一定作用。经流式细胞设备对外周静脉血淋巴细胞亚群以及NK细胞活性情况检测,可实现动态化检测癌症病患某阶段细胞免疫功能变化详情,此法方便简单,在指导治疗方案制定以及监测疾病预后方面,均体现出了一定效果,值得进一步推广

Chemical component in camellia cake against ultraviolet rays radiation damage on skin cells

目的分离纯化油茶粕中抗皮肤细胞紫外损伤活性成分。方法硅胶色谱和高效液相反相制备色谱纯化油茶粕正丁醇提取物,WESTErn-blOTTIng法检测纯化物质对uV照射HA CA T皮肤细胞Jnk、P38激活以及MMP-9的表达的影响。结果分离得到一单体化合物,经鉴定为kAEMPfErOl 3-O-{β-d-gluCOPyrAnOSyl-(1->2)-[α-l-rHAMnOPyrAnOSyl-(1->6)]-β-d-gluCOPyrAnOSIdE},且该化合物能够抑制HA CA T皮肤细胞uV照射后Jnk、P38激活以及MMP-9表达。结论油茶粕含有抗皮肤细胞紫外损伤活性成分,值得进一步开发。Objective To isolate the chemical component of camellia cake against ultraviolet rays radiation damage on skin cells.Methods Silica gel column chromatography and reverse phase preparative HPLC were used for the isolation of active compounds from the n-butanol extract of camellia cake.The effects of isolated compound on the activation of JNK and P38,and the protein expression of MMP-9 in UV irradiated Ha Ca J skin cells were determined by western blotting assay.Results A flavonoid glycoside was isolated from the camellia cake and identified as Kaempferol 3-O-{ β-D-glucopyranosyl-( 1-> 2)-[α-L-rhamnopyranosyl-( 1-> 6) ]-β-D-glucopyranoside} using NMR dada analysis.In addition,the isolated compound was showed to markedly inhibit the activation of JNK and P38,and MMP-9 protein expression in UV irradiated Ha Ca J skin cells.Conclusion The components in camellia cake might have significant activity on protecting skin from UV rays radiation damage,suggesting their potential development values.国家自然科学基金(No.81102332); 福建省厦门市科技计划项目(No.3502Z20123015

大气层中吉林陨石雨飞行轨道计算和现象分析

1976年3月8日下午3时许,吉林市郊降落了一场古今中外罕见的陨石雨,称为“吉林陨石雨”.中国科学院吉林陨石雨联合考察小组对吉林陨石雨进行了科学考察.本文是在对吉林陨石雨科学考察的基础上,进一步对大气层中吉林陨石雨飞行轨道进行了计算.给出了吉林陨石雨进入大气层的初始角度和速度,爆裂位置,飞行距离,着陆角度和速度等参数.同时,对吉林陨石雨所发生的现象也作了进一步分析,从而为研究“吉林陨石雨”的外空间轨道提供了依据

电化学合成重铬酸钠阳极稳态极化及交流阻抗法研究

针对重铬酸钠传统生产技术存在问题,提出电化学合成重铬酸钠的绿色新技术,阳极为自制钛基多元金属氧化物复合电极,所用阳极液为铬酸钠水溶液。阳极既是电催化合成过程的催化剂,又是电催化反应进行的场所。根据电催化合成重铬酸钠体系的特点,运用稳态极化曲线和交流阻抗技术研究了阳极反应动力学及电化学行为。实验测得阳极反应活化能等电极反应动力学参数及电极交流阻抗谱。讨论了反应温度对电极过电位和电催化反应速率、过电位对活化能的影响,阻抗谱表明该电化学体系表现为扩散控制机制

电化学合成重铬酸钠阳极稳态极化及交流阻抗法研究

针对重铬酸钠传统生产技术存在问题,提出电化学合成重铬酸钠的绿色新技术,阳极为自制钛基多元金属氧化物复合电极,所用阳极液为铬酸钠水溶液。阳极既是电催化合成过程的催化剂,又是电催化反应进行的场所。根据电催化合成重铬酸钠体系的特点,运用稳态极化曲线和交流阻抗技术研究了阳极反应动力学及电化学行为。实验测得阳极反应活化能等电极反应动力学参数及电极交流阻抗谱。讨论了反应温度对电极过电位和电催化反应速率、过电位对活化能的影响,阻抗谱表明该电化学体系表现为扩散控制机制