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find Author "林道明" 2 results
  • Clinical Significance and Expression of T Helper Cell Secretory Cytokines in Esophageal Squamous Cell Carcinoma Tissues

    Objective To investigate the clinical significance and expression of T helper cell secretory cytokines in esophageal squamous cell carcinoma tissues, which provide theoretical basis of reasonable and effective therapy for patients with esophageal carcinoma. Methods Fifty-six specimens of patients who underwent esophageal carcinoma resection were divided into two groups. Group A (n=28) included grade Ⅰand Ⅱ specimens of esophageal squamous cell carcinoma, group B (n=28) included grade Ⅲ and Ⅳ specimens of esophageal squamous cell carcinoma. Control group included 6 specimens of esophagitis. The expression of tumor necrosis factor alpha (TNF-α), interleukin 10 (IL-10) and transforming growth factor beta (TGF-β) in all specimens were detected. Results The positive expression of TNF-α,TGF-β and IL-10 in group A and group B were significantly higher than those in control group(Plt;0.01); the positive expression of TNF-α in group A was higher than that in group B, while the positive expression of TGF-β and IL-10 were lower than those in group B (Plt; 0.01). There was negative correlation between the positive expression of TNF-α and IL-10, TGF-β(Plt;0.01), and positive correlation between TGF-β and IL-10 (Plt; 0.01). The positive expression of TNF-α in patients of survival period in 3 years was lower than that exceed 3 years(F=36.25 ,Plt;0.01),while the positive expression of IL-10 and TGF-β in the patients of survival period in 3 years were higher than those exceed 3 years(F=29.29,26.69;Plt;0.01). Conclusion By the way of changing the level of cytokines secretion from T helper cells, esophageal squamous cell carcinoma tissues destroyed the balanced condition of patient’s immune system, which made esophageal carcinoma tissues escape the attack from the patient’s immune system and promote the invasion into surrounding tissues.

    Release date:2016-08-30 06:25 Export PDF Favorites Scan
  • 缺血预处理对脊髓缺血损伤细胞内Ca2+变化的影响

    目的 观察缺血预处理对脊髓缺血损伤细胞内Ca2+变化的影响. 方法 将44只健康新西兰大白兔随机分为三组:缺血组20只,缺血预处理组20只,假手术组4只.缺血组于左肾动脉下夹闭腹主动脉40分钟后开放灌注;缺血预处理组夹闭腹主动脉5分钟,开放15分钟,再次夹闭40分钟后开放再灌注;假手术组动物手术操作同缺血组,但不夹闭腹主动脉.分别于夹闭40分钟后即刻、开放再灌注2小时、8小时、24小时和72小时各时相点测定脊髓组织Ca2+含量,并评定、记录动物后肢神经功能. 结果 缺血预处理组脊髓组织Ca2+显著低于缺血组各时相值;再灌注8小时后神经功能评分缺血预处理组明显高于缺血组(P<0.01). 结论 缺血预处理具有降低神经元胞浆游离Ca2+浓度,防止Ca2+超载,稳定细胞内环境的能力,对主动脉阻断所致的脊髓缺血损伤有良好的保护作用.其表现为明显降低瘫痪发生率,增加术后神经评分.

    Release date:2016-08-30 06:31 Export PDF Favorites Scan
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