腹腔镜下宫颈癌根治术47例麻醉分析

目的探讨腹腔镜下宫颈癌子宫广泛切除加盆腔淋巴结清扫术的麻醉管理。方法回顾47例宫颈癌经腹腔镜下子宫广泛切除加盆腔淋巴结清扫术的全身麻醉资料,对生命体征改变、手术时间、麻醉时间、拔管时间、术中术后并发症发生情况进行分析。结果术中各时点SBP、DBP、HR、SpO2、PetCO2与麻醉前比较,差异无统计学意义(P>0.05);平均手术时间(201±18.8)min,平均麻醉时间(213±20.1)min,平均拔管时间(9.3±4.0)min。术中5例(10.6%)患者并发了皮下气肿,8例(17.0%)患者并发了少尿,所有患者术后随访均无呼吸循环系统并发症。结论全麻下经腹腔镜子宫广泛切除加盆腔淋巴结清扫手术时患者生命体征平稳,但麻醉要求较高,应合理选择麻醉药物和机械通气参数,加强监测,预防术中并发症。     

siRNA技术在哮喘治疗中的应用

RNA干扰是由双链RNA引发的序列特异的基因沉默现象,其中长度为21～23nt的小RNA分子（small inter-fering RNA,siRNA）是引起RNA干扰现象的直接原因。利用siRNA使基因沉寂从而调节目的蛋白的表达,在疾病的基因治疗中有巨大的应用价值。哮喘是一种常见的多发病,在治疗上仍面临极大的挑战。利用siRNA技术治疗哮喘是当今最新的一种治疗手段,虽然应用才刚刚起步,但其革命性的治疗理念,无疑给哮喘患者带来了新的希望。     

UPLC-TOF-MS法鉴定胀果甘草药渣中黄酮类成分

目的建立胀果甘草药渣中黄酮类成分的超高效液相色谱-高分辨飞行时间质谱(UPLC-TOF-MS)定性分析方法。方法 AgilentSB-C18柱(100mm×4.6mm,1.8μm);流动相乙腈-0.1%甲酸水溶液,梯度洗脱;体积流量0.4mL/min;柱温25℃;检测波长254nm。ESI离子源,飞行时间质谱检测器。对比自制对照品进行鉴别。结果共鉴定出8个黄酮类成分,分别为2’,4,4’-三羟基查耳酮、甘草查耳酮D、甘草查耳酮甲、4’-羟基-2’’,2’’-二甲基吡喃[5’’,6’’,6,7]黄酮、甘草黄酮C、光甘草酮、甘草黄酮B和kanzonolE。结论建立了一种简单、可靠的UPLC-TOF-MS方法对胀果甘草药渣中黄酮类成分进行了鉴定,对胀果甘草药渣综合利用有一定参考价值。     

血清药理学方法研究四逆汤对离体蛙心心肌收缩力的影响

目的观察大鼠灌胃给予四逆汤后,其含药血清对离体蛙心心肌收缩力的作用。方法大鼠每日2次灌胃给予四逆汤(1mL/次),给药1d后,分别在末次给药30、60、90、120min取血,分离血清。将含药血清加入离体蛙心的灌流液中,观察四逆汤对离体蛙心心肌收缩力的影响。结果灌胃给予四逆汤后,含药血清均能显著增强离体蛙心的心肌收缩力。其中末次给药后90min采血分离的血清对离体蛙心的作用最强。结论四逆汤能增强离体蛙心的心肌收缩力。     

综合性口腔护理预防系统性红斑狼疮患者口腔感染

目的 探讨综合性口腔护理预防系统性红斑狼疮(SLE)患者口腔感染的效果.方法 将129例SLE患者按入院顺序分为对照组(64例)和实验组(65例),对照组采用常规口腔护理方法,实验组根据患者口腔pH值及局部培养结果选择口腔护理溶液及局部应用抗生素,观察两组患者口腔pH值、口腔感染发生率.结果 实验组发生口腔感染14例(21.54%),对照组为28例(43.75%),两组比较.差异有统计学意义(P＜0.01);实验组真茵感染发生率显著低于对照组(P＜0.05);实验组患者从入院第7天开始口腔pH值趋于碱性(6.90±1.35),第10天显著高于对照组(P＜0.01).结论 综合性口腔护理干预能有效提高SLE患者口腔pH值,减少和预防口腔感染尤其是真菌感染的发生.     

改性壳聚糖防粘连膜防止心肌梗死模型兔心脏与周围组织粘连

目的 观察改性壳聚糖防粘连膜对心肌梗死兔心脏与周围组织粘连程度的影响.方法 25只日本长耳白兔,开胸结扎冠状动脉制备心肌梗死模型,随机分为对照组(A组)和改性壳聚糖防粘连膜组(B组),A组正常关胸,B组关胸前在心脏和胸壁间置入改性壳聚糖防粘连膜.每组造模型成功各11只.术后3个月A组存活8只、B组存活9只.分别行在体磁共振电影和二次开胸,分级评价粘连程度.采用Wilcoxon秩和检验.结果 磁共振电影评价粘连程度,A组轻度粘连、中度粘连、重度粘连分别为2只、2只、4只;B组分别为7只、2只、0只.差异有统计学意义(P<0.05).开胸评价粘连程度,A组无粘连、轻度粘连、中度粘连、重度粘连分别为1、1、2、4只;B组分别为3、4、2、0只.差异有统计学意义(P<0.05).结论 改性壳聚糖防粘连膜可以减轻心肌梗死模型兔心脏与周围组织粘连.     

精神心理学干预在慢性疼痛治疗中的应用研究进展

越来越多的研究关注精神心理学参与慢性疼痛的治疗,在临床中不断有报道提出慢性疼痛复合心理干预有效,并能综合的改善患者的生活质量.常见慢性疼痛的心理学干预包括心理药理学干预与心理行为学干预,均对慢性疼痛的改善有效.     

Discordance between olfactory psychophysical measurements and olfactory event related potentials in five patients with olfactory dysfunction following upper respiratory infection

Background Subjective olfactory tests are easy to perform and popularly applied in the clinic, but using only these, it is difficult to diagnose all disorders of the olfactory system. The olfactory event related potentials technique offers further insight into the olfactory system and is an ideal objective test. This analysis was of subjective and objective data on the olfactory function of twelve patients with loss of smell associated with an upper respiratory infection (URI). Methods We tested the twelve patients with URI induced olfactory loss by medical history, physical examination of the head and neck, olfactory tests and medical imaging. Olfactory function was assessed by Toyota and Takagi olfactometry including olfactory detection and recognition thresholds and olfactory event-related potentials (OERPs) recorded with OEP-98C Olfactometer. Results An unusual phenomenon was observed in five patients in whom the subjective detection and recognition thresholds were normal, while the expected OERPs were not detectable. Conclusions We suggest that the discordance between olfactory psychophysical measurements and OERPs might be the results of abnormal electrephysiology related with olfactory neuropathy caused by viral URI. In addition, the measurement of OERPs might play a significant role in evaluating olfactory dysfunction.     

脂肪干细胞侧脑室定向移植改善脑出血大鼠的神经功能

Objective To study improvement of neural function by stereotaxic transplantation of adipose-derived stem cells (ADSC) into lateral cerebral ventricle after intracerebral hemorrhage in rats and its mechanism. Methods ADSC were cultured and proliferated in vitro, which had been marked with Brdu for 48 h before transplantation. The rat caudate nucleus hemorrhage (ICH) models were divided into 2 groups. ADSC were stereotaxically transplanted into the right lateral ventricles in ADSC group, and equal volume of saline was transplanted into control group. The score of neurological behavior were evaluated at modeling and 1, 3, 7, 14, 28 days after transplantation respectively.Double-staining immunofluorescence technique was used to detect Brdu-positive cells and the differentiation of neurons and astrocytes. In accordance with the instructions of TUNEL kit, cell apoptosis, and the expression of VEGF and angiogenesis were assayed. Results In vitro ADSC expressed undergo osteogenic and adipogenic differentiation. Compared with the control group, ADSC group had better motor function at 3, 7, and 14 days (P＜0. 05). Double-staining immunofluorescence showed mostly grafted Brdu-reactive ADSC had migrated to the hematoma zone, and some survivedand expressed Neun of Gfap. TUNEL analysis revealed that, 3 days after transplantation, the number of apoptotic cells in ADSC group was significantly less than in the control group (P＜0. 05). Three days after transplantation, VEGF expression levels in ADSC group were significantly higher than in the control group (P＜0. 05). Conclusion ADSC stereotaxially transplanted into the lateral ventricle can survive and differentiate into neuron-like cells. ADSC transplantation may reduce apoptosis and secret VEGF to promote the angiogenesis, and improve neural functional in intracerebral hemorrhage rats.     

碳纳米管在纳米医药中的研究进展

目的:总结碳纳米管在纳米医药领域中的最新研究进展,为进一步研究和应用碳纳米管提供相关依据.方法:收集近年来国内外相关文献,对碳纳米管的毒理学和药理学方面的研究进行总结分析.结果与结论:近年来碳纳米管在生物医学中有多种应用,在诊断学和治疗学上出现了一个新领域.