超声联合微泡剂介导的肿瘤靶向治疗研究进展

包被气体的微泡剂作为超声造影剂不仅显著提高了临床超声显像诊断能力,而且其作为一种新型药物载体的靶向治疗作用正逐步被揭示。携带基因或药物的超声微泡剂介导肿瘤靶向治疗已经成为超声研究领域中的研究热点。这种微泡剂在超声能量作用下因空化效应导致自身破裂并定向释放所携带的药物或者基因,使特定肿瘤组织或细胞部位浓度大大提高,从而起...     

丙酸睾丸酮对MCF－7荷瘤裸鼠肿瘤生长的影响及临床意义

观察不同剂量丙酸睾丸酮对MCF-7荷瘤裸鼠肿瘤生长的影响,并探讨其可能机制和临床意义。构建MCF-7荷瘤裸鼠,再用不同浓度的丙酸睾丸酮（50mg／kg,400mg／kg）及化疗药物（表阿霉素）进行干预,比较各组实验鼠肿瘤的生长情况,并用微粒子发光法检测裸鼠血清睾丸酮的含量,用流式细胞技术检测肿瘤中雄激素受体的表达。发现...     

转化医学与肿瘤诊治

转化医学是促进基础研究成果向临床应用转化和根据临床医学的需求从事应用基础研究的桥梁。本文以转化医学在肿瘤防治研究的实例,分析转化医学的意义,以期为使大家重视转化医学,提高肿瘤诊治水平。     

复发转移性乳腺癌患者血浆VEGF水平的临床价值研究

探讨血浆血管内皮生长因子（P-VEGF）在乳腺癌术后复发转移患者中的表达情况及临床意义。采用酶联免疫吸附试验检测50例术后复发转移性乳腺癌患者及20例乳腺良性疾病对照组的P-VEGF含量,同期采用微粒子化学发光法检测术后复发转移性乳腺癌患者血清CEA和CA15-3的表达情况,进行对比研究。结论认为转移肿瘤细胞可产生大量...     

探讨甲状腺结节内钙化对甲状腺癌的临床意义

为探讨甲状腺结节内钙化与甲状腺癌的关系,本文对手术病理证实的145例212个甲状腺钙化结节超声声像图表现进行回顾性分析,按照钙化的大小、形状及位置进行分型,统计癌性结节与非癌结节出现各类钙化的比例。结论为甲状腺良、恶性肿瘤均可出现钙化,位于内部、斑点状、针尖样或砂粒样的微钙化结节往往提示恶性可能。超声检查对诊断甲状腺疾...     

影响患者医疗知情权实现的细节因素分析

在医院细节文化的语境下,通过抽样问卷调查及结构式访谈法,提出在口语、书面语的医院方式文化中,影响患者医疗知情权实现的细节因素及其存在问题,并结合相关制度规定,分析存在问题的原因,进而寻找保障患者医疗知情权实现途径及对策,以期构建和谐医患关系。     

非肌层浸润性膀胱癌膀胱全切手术时机的探讨

非肌层浸润性膀胱癌包括Tis,Ta,T1期膀胱癌。它们的生物学特征,恶性程度不同,治疗方式多样化。非肌层浸润性膀胱癌经过保留膀胱治疗效果良好,但仍有一部分表现为高复发和局部进展。建议BCG治疗失败的原位癌;伴有两个或者两个以上的高风险进展特征的T1G3或者是膀胱灌注治疗无效的TIG3期膀胱癌患者尽早行根治性膀胱切除术。     

电视胸腔镜下肺癌切除术应用体会

电视胸腔镜手术被视为20世纪末期胸外科界革命性的一大突破,是微创胸腔外科应用范围最为广阔的胸腔镜手术。其中,腔镜下治疗非小细胞肺癌的肺叶切除术是胸外科微创的代表性手术,其创伤小、恢复快、并发症发生率低等优点日益明显。尽管胸腔镜肺癌切除的安全性及有效性得到普遍认可,而且胸腔镜手术治疗早期肺癌患者也取得了良好的效果,但目前...     

Increased saccadic rate during smooth pursuit eye movements in patients at Ultra High Risk for developing a psychosis

Abnormalities in eye tracking are consistently observed in schizophrenia patients and their relatives and have been proposed as an endophenotype of the disease. The aim of this study was to investigate the performance of patients at Ultra High Risk (UHR) for developing psychosis on a task of smooth pursuit eye movement (SPEM). Forty-six UHR patients and twenty-eight age and education matched controls were assessed with a task of SPEM and psychiatric questionnaires. Our results showed that both the corrective and non-corrective saccadic rates during pursuit were higher in the UHR group. There were however no differences in smooth pursuit gain between the two groups. The saccadic rate was related to positive UHR symptoms. Our findings indicate that abnormalities in SPEM are already present in UHR patients, prior to a first psychotic episode. These abnormalities occur only in the saccadic system.     

‘What made me unhappy’. Experiences of,and responses to,lifestyle changes in breast cancer patients

Sixteen breast cancer patients were interviewed about any lifestyle changes they had experienced and their reactions to those changes. Data were collected and analysed via content analysis and then summary tabulations of patient responses until replication of responses was verified across patients. Results indicated that most patients suffered a reduction in recreation activities, unpleasant physical side effects from treatment and loss of feminine appearance characteristics, all of which were seen as decreases in previously available and valuable sources of social support and self-esteem. In response to these losses, patients reported a common coping strategy of avoidance or escape similar to some depressive symptomatology. Implications for counsellors are discussed.