上腹部突发性持续性疼痛48小时

病例摘要袁××,男,57岁,农民.因上腹部突然持续性刀割样疼痛伴恶心、呕吐48小时,于1980年11月28日急诊入院.1970年2月开始上腹部经常隐痛,吐酸水,嗳气,以进生冷食物后更明显,并排柏油样大便2次,经服解痉止痛剂及抗酸药物后症状缓解。体检:体温38.5℃,脉搏92次/分,呼吸22次/分,血压108/70毫米汞柱.发育正常,营养中等,痛苦表情,心肺无异常。外科情况:腹部饱满,无肠型及蠕动波;腹肌板硬,全腹压痛反跳痛明显,未扪及包块,肝脾未触     

1例内窥镜下经口咽入路治疗Klipple-Feil综合征手术的护理配合

我院于2005年4月5日成功应用内窥镜技术经口咽入路治疗Klipple-Feil综合征合并颅底凹陷、脊髓受压患者1例，效果良好。现将手术配合体会报告如下：     

低剂量辐射增强小鼠肿瘤基因-放射治疗效应的免疫学机制研究

目的 探讨低剂量辐射全身照射对小鼠Lewis肺癌移植肿瘤基因-放疗方案中的免疫增强作用机制。方法 小鼠右后肢皮下接种Lewis肺癌细胞建立荷瘤模型,基因-放疗组中小鼠肿瘤局部注射由多聚乙烯亚胺包裹的pEgr-IL18-B7.1重组质粒,分别接受由2 Gy 局部照射和0.075 Gy 全身照射组合的不同治疗方案,通过³H-TdR标记方法检测小鼠CTL和NK细胞毒活性,ELISA方法检测TNF-α和IFN-γ分泌活性,观察各治疗组对荷瘤小鼠抗肿瘤免疫的作用。结果 在pEgr-IL18-B7.1基因治疗方案中,单次大剂量辐射局部照射后加多次低剂量全身照射与常规多次大剂量辐射局部照射相比,小鼠CTL和NK细胞毒活性显著增强,TNF-α和IFN-γ分泌活性有不同程度的增高。 结论 低剂量辐射可以通过促进CTL和NK细胞毒效应,上调TNF-α和IFN-γ细胞因子表达,从而增强机体抗肿瘤免疫功能,提高肿瘤基因-放疗的抑瘤效果。     

p38丝裂原活化蛋白激酶信号级联在炎症反应中的作用

在急、慢性疾病中，细胞释放的炎症介质可以活化多种信号转导级联反应，丝裂原活化蛋白激酶(MAPK)信号转导通道在招募白细胞于炎症部位聚集起着重要的作用。同时，p38MAPK异构体的活化可以激活致炎细胞因子，而后刺激白细胞活化。然而，p38MAPK引起的白细胞招募这一系列的功能过程包括：粘附、游走和效应器的功能如氧化爆发以及p38MAPK介导的复杂细胞因子网络在炎症中的作用仍有待研究。针对减少炎症介质产生和以p38MAPK为治疗靶点的研究正在进行中，不远的将来可能会成为治疗炎症疾病的新策略。     

老年人低血糖昏迷12例误诊分析

2003年6月至2006年6月我院收治了老年人低血糖昏迷12例，均被误诊。现将其误诊情况分析如下：     

呱西替柳合成方法的改进

采用多聚磷酸催化合成的水杨酸、聚乙二醇相转移催化乙酰水杨酰氯和愈创木酚合成哌西替柳，条件温和，收率达７３－８３％。     

肾上腺组合性嗜铬细胞瘤四例报告及文献复习

Objective To discuss the clinical characteristics and management principles of com-posite pheochromoeytoma of adrenal gland (pheochromocytoma-ganglioneuroma). Methods Four cases of composite tumor of adrenal gland diagnosed pathologically were reviewed. All the cases were male, aged 37 to 62 years;three of them had the history of hypertension, one of them accompanied with paroxysmal palpitation, while one case was asymptomatic. Computerized tomography and ultra-sonography showed single tumor in adrenal, the diameter was about 2.5、3.8、6.3、15cm respectively. Two cases showed positive results in 131Ⅰ-metaiodobenzylguanidine (MIBG) scintigraphy. One case showed positive result in 99Tcm-hydrazinonicotinamide-3trysinoctreotide (HTOC) scintigraphy. Twenty-four hours urinary catecholamine examination revealed the average of norepinephrine, epi-nephrine and dopamine were (196.1±92.2)nmol/24 h, (26.6±8.9)nmol/24 h, (1957.9±913.5) nmol/24 h respectively. Two cases were at a little elevated level and the others with normal. All cases were managed with α-adrenergic receptor blocker preoperatively for 2-4 weeks. Results Tumor re-section was performed in all 4 cases, and 3 cases by retroperitoneal laparoscopy, one by open surgery. All 4 cases were diagnosed as composite pheochromocytoma of adrenal (Pheochromocytoma-gangli-oneuroma) by pathology. All patients had no evidence of recurrence or metastasis during follow-up from 15 to 38 months. Two of three cases with hypertension reverted to normotensive. Conclusions Composite pheochromocytoma of adrenal is rare, difficult to be diagnosed preoperatively. Except mild in eatecholamine secretion, which clinical manifestations are similar to pheochromocytoma. Pheochro-mocytoma-ganglioneuroma is no apparent tendency for aggressive behaviors, the results of surgical management are favorable.     

角膜屈光手术后人工晶状体度数的计算及影响因素

角膜屈光手术后人工晶状体度数的计算是目前研究的热点,备受人们关注.此文从角膜屈光手术后人工晶状体度数计算的误差产生原因及其影响因素等方面进行了综述.     

寻找你的夏妆色彩

今夏,你可以像比利弗山庄的明星们一样华丽低调,也可以如粉红小妇人般甜美到秀色可餐,或者,在暖洋洋的阳光下凝一抹清凉的薄荷绿,在大地的暖褐色中双颊泛起潮红。