5种不同石斛的多糖与氨基酸及甘露糖的含量比较分析

目的:比较不同种石斛部分化学成分的差别。方法:通过定量测定,比较5种石斛种总多糖、氨基酸和甘露糖的含量差异。结果：5种不同种类的石斛的多糖、氨基酸、甘露糖的含量存在较大的差异.多糖含量,细茎石斛、金钗石斛、马鞭石斛相近,其中铁皮石斛明显高于其余4种石斛,鼓槌石斛明显低于其余的4种石斛;氨基酸含量,马鞭石斛高于其它4种石斛;甘露糖含量,铁皮石斛明显高于其余4种石斛。结论：5种不同石斛的总多糖、氨基酸和甘露糖的含量存在较大的差异,但就所含的相同化学成分总体而言铁皮石斛的质量好于其它四种石斛。     

脊髓内透明细胞室管膜瘤1例

患者男性,16岁.因进行性左下肢乏力4年入院.患者于2005年4月无明显诱因出现左下肢无力,症状逐渐加重;2年后出现左小腿腓肠肌肌肉萎缩.2008年1月～2009年8月,以上症状进一步加重,并出现腰痛、左足背皮肤麻木感,小便无力.专科检查:左臀部肌肉和左小腿腓肠肌轻度萎缩,左足趾屈伸功能障碍,左提睾反射和膝腱反射减弱,左下肢皮肤浅感觉减弱.     

骨髓间充质干细胞移植对烟雾吸入性损伤兔早期肺组织的影响

目的 探讨骨髓间充质干细胞(MSCs)移植对烟雾吸入性损伤兔早期肺组织损伤的影响.方法 采用直接贴壁法体外培养兔MSCs,用流式细胞术鉴定MSCs.将48只兔制备烟雾吸入性损伤模型后按随机数字表法均分成致伤组和MSCs组.MSCs组伤后立即静脉给予含1×107个/ml MSCs的磷酸盐缓冲液(PBS)10 ml;致伤组则给予10 ml PBS.分别于干预后2、6和24 h活杀8只兔,取肺组织行组织病理学观察,同时进行肺损伤评分.结果 流式细胞术检测显示所培养细胞为MSCs.肺大体标本和光镜下均观察到MSCs组肺损伤程度较致伤组明显减轻.虽然MSCs组和致伤组伤后2 h肺损伤评分(分)比较差异无统计学意义(4.0±0.7比4.5±0.6,P＞0.05),但MSCs组伤后6 h和24 h肺损伤评分(分)明显低于致伤组(6 h:6.1±0.9比8.2±0.9,24 h:4.6±0.9比10.4±0.8,均P＜0.01).结论 MSCs移植能明显减轻烟雾吸入性损伤兔肺组织损伤,改善肺损伤评分.

Abstract：

Objective To explore the effect of bone marrow mesenchymal stem cells (MSCs)engraftment on lung tissue at early stage of smoke inhalation injury in rabbits. Methods MSCs were proliferated by the method of whole marrow culture and identified by flow cytometry. Forty-eight rabbits were randomly divided into smoke inhalation group (S group) and MSCs group (M group) after reproduction of rabbit smoke inhalation injury model. 10 ml of phosphate buffer saline (PBS) containing 1 × 107/ml MSCs was intravenously injected in M group, meanwhile 10 ml PBS was injected intravenously in S group. Eight rabbits were sacrificed at 2, 6 and 24 hours after intervention, and the lung tissue was harvested for morphological and pathological observation, and lung injury score was used to evaluate smoke inhalation injury.Results Cultured cells were confirmed to be MSCs with flow cytometry. Lung injury in rabbits of M group was less serious in morphology and histopathology than that in S group. Though there was no significance in lung injury score between M group and S group at 2 hours after injury (4.0±0.7 vs. 4.5±0.6, P＞0.05),the lung injury scores in M group at 6 hours and 24 hours after injury were significantly lower than those in S group (6 hours: 6.1±0.9 vs. 8.2±0.9, 24 hours: 4. 6±0.9 vs. 10.4±0. 8, both P＜0. 01). Conclusion Intravenous engraftment of MSCs could ameliorate lung injury induced by smoke inhalation, and improve lung injury score significantly.     

脑动脉瘤患者经股动脉造影的护理

目的:介绍脑动脉瘤患者经股动脉造影的护理方法。方法:对14例经股动脉造影的脑动脉瘤患者实施术前、术中和术后的积极护理。结果:14例患者中除1例因术后再出血死亡外,其余13例均康复出院。结论:对经股动脉造影脑动脉瘤患者实施积极的术前、术中和术后护理是提高手术成功率、减少并发症发生率的关键。     

风险管理对神经外科护理工作的影响

目的探讨风险管理对神经外科护理工作的影响。方法对我院神经外科实施护理风险管理的情况进行评估和总结,针对出现的问题完善相应的管理对策。结果通过风险管理,提高了我院神经外科护理人员的防范意识和能力,降低了护理风险事件的发生率。结论增强护理人员的风险意识,加强风险监控,能有效预防和减少护理风险的发生。     

骨髓间充质干细胞在烟雾吸入性损伤家兔体内向功能细胞分化的观察

Objective To observe the homing and differentiation of marrow-derived mesenchymal stem cells (MSC) transplanted intravenously in smoke inhalation injured rabbits. Methods Thirty-two New Zealand big ear rabbits were divided into normal control group ( NC ), inhalation injury group ( Ⅱ),normal control + MSC treatment group (NM) , and MSC treatment group (MT) according to the random number table, with 8 rabbits in each group. Rabbits in NC group were injected with 10 mL phosphate buffered saline (PBS) via ear marginal vein. Rabbits in NM group were injected with 10 mL PBS containing the third generation MSC labeled by BrdU ( 1 × 107 per 10 mL PBS) via ear marginal vein. Severe smoke inhalation injury model was reproduced in the other two groups, among them rabbits in Ⅱ group were treated as rabbits in NC group, rabbits in MT group treated as rabbits in NM group. On the 7th and 28th day post treatment (PTD), lung tissue and trachea tissue were harvested from four groups for observation on injury with HE staining. Homing of MSC in injured tissue was observed with immunohistochemistry staining. The differentiation of MSC into functional cells was observed with immunohistochemical double staining of combining nuclear marker BrdU with lung (trachea) membrane-specific marker aquaporin-5 (AQP-5) , alkaline phosphatase (AKP), CD34, and cytokeratin respectively. Results (1) MSC homing in lung and trachea tissue was observed in MT group on PTD 7, which was not observed in NM group. (2) AQP-5, AKP, and CD34 positive MSC were observed in lung tissue in MT group on PTD 28, while cytokeratin positive MSC was not observed in trachea tissue. No positively marked MSC was observed in NM group. (3) Injury in lung and trachea was less severe in MT group than in Ⅱ group; and the proliferation of fibroblasts was less in MT group. Conclusions Intravenous injection of MSC to rabbits with smoke inhalation injury can migrate to lung and trachea tissue at obviously inflammatory site, and differentiate into alveolar epithelial cells type Ⅰ and Ⅱ , and pulmonary vascular endothelial cells, which may participate in the process of tissue repair in smoke inhalation injury.     

安特尔联合万艾可治疗糖尿病性勃起功能障碍的临床研究

目的探讨安特尔联合万艾可治疗DED的有效性和安全性。方法将DED患者90人随机分为对照组和研究组,观察治疗前、治疗后3个月时的IIEF-5评分、PADAM评分及血清睾酮等变化。结果2组治疗后3个月较治疗前IIEF-5评分显著提高（P〈0．05）,PADAM评分显著降低（P〈0．05）;研究组血清睾酮明显升高（P〈0．01）,对照组血清睾酮无明显变化（P〉0．05）;IIEF-5评分,PADAM评分及血清睾酮等变化表明研究组疗效优于对照组。结论万艾可联合安特尔可纠正DED的低睾酮水平而显著提高了疗效,两者联合应用安全、有效。     

白屈菜红碱对小鼠溃疡性结肠炎的治疗作用

目的:研究白屈菜红碱对小鼠溃疡性结肠炎的治疗作用及可能的作用机制。方法:选取60只KM小鼠采用乙酸灌肠建立小鼠溃疡性结肠炎模型,随机分为模型组,阳性药组,白屈菜红碱低、中、高剂量组(25,50,100 mg·kg-1),并设立正常组,每组10只。灌胃给药,正常组、模型组给予生理盐水;阳性药组给予20 mg·kg-1美沙拉嗪。连续给药7 d后,观察白屈菜红碱对小鼠一般情况、结肠黏膜组织损伤的影响;试剂盒测结肠和血清中髓过氧化物酶(MPO)的活性和一氧化氮(NO)的含量;酶联免疫吸附法(ELISA)检测结肠和血清中肿瘤坏死因子-α(TNF-α)水平变化。结果:与正常组相比,模型组结肠组织损伤严重,MPO,NO,TNF-α的水平明显降低(P<0.01);与模型组相比,阳性药组和白屈菜红碱组结肠组织损伤情况明显减轻,美沙拉嗪与白屈菜红碱可改善升高MPO,NO,TNF-α水平(P<0.05,P<0.01)。结论:白屈菜红碱对乙酸诱导的小鼠溃疡性结肠炎有治疗作用,作用机制可能与其炎症因子NO,TNF-α的产生有关。     

正交试验优化溪黄草中咖啡酸和迷迭香酸的超声提取工艺

目的:优化溪黄草中咖啡酸与迷迭香酸的超声提取工艺.方法:采用HPLC测定溪黄草中咖啡酸与迷迭香酸含量,以咖啡酸与迷迭香酸提取率为指标,在单因素试验基础上,通过L9(34)正交试验考察提取溶剂、料液比、提取时间对工艺的影响.结果:最佳提取工艺条件为加20倍量30％乙醇超声提取40 min.结论:优选的工艺简单、经济、提取率高,可为中药溪黄草的开发利用提供参考.     

不同采收期、加工方法对溪黄草中咖啡酸和迷迭香酸含量的影响

目的: 考察不同采收期和加工方法对溪黄草中咖啡酸、迷迭香酸含量的影响。 方法: 采用HPLC测定咖啡酸、迷迭香酸含量,色谱条件为Dikma Diamonsil C₁₈(2)色谱柱(4.6 mm×250 mm,5 μm),流动相乙腈(A)-0.3%磷酸溶液(B)梯度洗脱(0~17 min,12%A;17~20 min,12%~25%A;20~50 min,25%A),流速1.0 mL·min^-1,检测波长329 nm,柱温室温,进样量20 μL。以咖啡酸、迷迭香酸含量为指标,考察采收期(5~11月份)和干燥方法(烘干、晒干和阴干)对溪黄草药材质量的影响。 结果: 不同采收期对溪黄草茎、叶中咖啡酸含量影响较小,但对迷迭香酸含量的影响较大。3种干燥方法处理后迷迭香酸提取率分别为1.365%,1.790%,1.577%,咖啡酸提取率分别为0.057%,0.053%,0.055%。 结论: 以7月份采收的药材质量最佳,可每年采收2次,采收时间为7月和11月;药材加工方法采用自然晒干为最佳。