难治性黄疸动物模型研究

目的：为难治性黄疸研究找到一种较为合适的动物模型。方法：１６只狗胆管壁浸润注射１％甲醛,１月内观察胆汁粘度和管壁病理形态学变化。结果：注射后胆管粘膜有进行性加重的炎症、粘膜脱落、纤维化及乃至管腔狭窄,其病理变化及临床的硬化性胆管炎病理特征基本符合。结论：本模型可望成为研究难治性黄疸的较为实用的动物模型。     

小儿消化性溃疡并出血66例临床分析

探讨小儿消化性溃疡并出血６６例。方法：纤维内窥镜检查证实３６例,胃肠钡餐造影确诊３０例。结果：内科保守治疗６４例,外科手术治疗２例。并对小儿消化性溃疡并出血的高危因素进行分析,发现与年龄、环境、长期误诊误治及血型均有一定关系。     

二尖瓣脱垂与急性风湿性心脏炎的相关性研究

目的探讨二尖瓣脱垂(MVP)与急性风湿性心脏炎(ARC)的相关性。方法对108例风湿热并ARC的患者行超声心动图检查以观察MVP的发生率。结果超声心动图检查发现MVP76例,发生率为70％,其中前叶脱垂57例(53％),后叶脱垂13例(12％),前后叶均脱垂6例(6％)。与对照组比较有明显的差异(P＜0．01)。ARC所致MVP中74例(97％)并发二尖辫关闭不全(MI),且MVP与MI的严重程度密切相关(P＜0．01)。结论ARC是MVP,尤其是二尖瓣前叶脱垂的重要原因之一,而MVP是ARC所致MI的重要因素。     

精氨酸对肠粘膜屏障功能的影响

目的：了解精氨酸对肠粘膜屏障功能的影响。方法：雄性ＳＤ大鼠３０只,随机分为三组。精氨酸组予精氨酸０．２５ｇ腹腔注射,假手术组和肠梗阻组予生理盐水作对照,１次／ｄ,共５ｄ。再手术将肠梗阻组、精氨酸组大鼠结扎回肠,造成单纯性机械性肠梗阻模型,假手术组仅作剖腹探查。术后２４ｈ处死大鼠采集标本。结果：①细菌移位率和移位数水平肠梗阻组和假手术组相比明显升高,精氨酸组和肠梗阻组相比明显减少。②血浆内毒素水平肠     

肝段下腔静脉阻塞症的外科治疗（附54例报告）

目的 探讨肝段下腔静脉阻塞症的有效治疗方法。方法 ５４例病人中,２０例下腔静脉隔膜破膜术,５例行下腔静脉切开根治性隔膜切除术,１６例行下腔静脉右心耳人造血管转流术,８例行肠系膜上静脉－右心耳人造血管转流术;４例作了下腔静脉－右心耳、肠系膜上静脉、下腔静脉人造血管联合转流术,１例行肺包脾手术。结果 本组５４例患者中,除３例分别于术后１２ｄ、４５ｄ、７个月因肝肾功能衰竭死亡死亡外,其余５１例术后症状明     

原发性高血压对器官损害与胰岛素抵抗

目的：探讨原发性高血压病（ＥＨ）血压昼夜节律及靶器官损害与胰岛素抵抗（ＩＲ）的关系。方法：选择原发性高血压Ⅰ,Ⅱ,Ⅲ期患者及正常对照者,测定空腹血糖、胰岛素水平,计算胰岛素敏感性指数,作对比研究。所有原发性高血压患者均作２４小时动态血压测定,按照昼夜节律正常及昼夜节律消失／分组比较其空腹血糖及胰岛素水平和胰岛素敏感性指数。结果：原发性高血压组空腹血胰岛素水平明显高于正常对照组（Ｐ〈０．０１）,合并     

AngⅡ受体1基因与肥厚型心肌病的关系研究

目的探讨中国人群AngⅡ受体1多态性与肥厚型心肌病(HCM)发病的关系。方法运用等位基因特异性寡核苷酸杂交(ASO)技术,对35例HCM患者和44例正常对照的AT1基因A     

Decreased frequency of a novel T-lymphocyte subset,CD3+CD4−CD7+CD57− T cells,in hepatitis B virus-related end-stage liver disease might contribute to disease progression

CD7 and CD57 are related to the differentiation and functional stages of CD8⁺ T cells. However, the role of their combined presence in CD8⁺ T cells in patients with chronic hepatitis B virus (HBV) infection, especially those with end-stage liver disease, remains unclear. Blood samples from healthy volunteers and patients with chronic hepatitis B were analyzed via Luminex assay and ELISA to measure plasma cytokine levels. Further, recombinant IL-22 was used to stimulate peripheral blood mononuclear cells from healthy volunteers, and the frequency of CD3⁺CD4⁻CD7⁺CD57⁻ T cells and apoptosis rates were investigated via flow cytometry. Patients with end-stage liver disease, particularly those with acute to chronic liver failure, showed decreased CD3⁺CD4⁻CD7⁺CD57⁻ T cell frequency. Furthermore, the prevalence of CD3⁺CD4⁻CD7⁺CD57⁻ T cells was negatively correlated with disease severity, prognosis, and complications (ascites). We also observed that IL-22 promoted apoptosis and brought about a decrease in the number of CD3⁺CD4⁻CD7⁺CD57⁻ T cells in a dose-dependent manner. CD3⁺CD4⁻CD7⁺CD57⁻ T cells displayed a B and T lymphocyte attenuator (BTLA)^highCD25^highCD127^high immunosuppressive phenotype and showed low interferon-γ, tumor necrosis factor-α, granzyme A, and perforin expression levels. The present findings will elucidate the pathogenesis of HBV-related end-stage liver disease and aid the identification of novel drug targets.     

体外循环手术病人胰腺内、外分泌功能的变化

目的：观察体外循环手术病人围期胰腺内,外分泌功能的变化以及影响这些变化的可能因素。方法：20例体外循环病人分别测定术前,术后2,24,48h血糖,淀粉酶,胰岛素,C肽浓度。结果：血糖,胰岛素,C肽含量,术后与术前经均有明显提高（P＜0．05）;术中,术后2h血淀粉酶的值与术前比较无明显差异（P＞0．05）,但手术后24,48h即显高于术水平（P＜0．05）。淀粉循环围术期胰腺内,外分泌功能均存在着不同程度的损害,而避免体外循环转流中灌注压过低对减轻胰腺功能的损害具有一定积极意义,术后早期应避免输入高渗葡萄糖。     

Primary hepatic non-Hodgkin's lymphoma: a case report and review of the literature

~ hepatic lympholna (PHL) is very uncommon, with which most clinicians are not fallliar. We report a case Of p~ hepatic non-Hodgkin's lymphomawhoSe clinical ~stalons were Presented edng withP~ssiVe liVer failure, and the comet diagnosis wascoallrmed by liver biopsy. A review of the lite~re anddiscussion of PHL ~ also Presented.~ ~ ~sPatient A 32-year-old man was abbotted to ourdepallment on APril l, 1999 because of fatigUe, anowhaand loss Of weight for 5 months, feVer for 4 d. The onse…