Relationship between the Mutation of IRS-1 Gene and β_3-adrenergic Receptor Gene

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以呕吐原因待查住院的疾病分析

目的 分析哎吐的发病情况,以期充分提高对其临床表现的认识,并提出合理的检查步骤。方法 采用回顾性方法分析了315例哎吐原因待查病例。结果 消化系统疾病与非消化系统疾病的比例分别为77．14％和20．23％,无论是消化系统疾病还是消化系统疾病,女性发病的比例均高于男性。结论 哎吐原因待查住院的病人病史较长病情复杂,可根据疾病的发病规律和临床特点,先将其分为消化系统疾病和非消化系统疾病两类,然后再根据各自的特点逐一分析,结合相应的检查最终明确诊断。     

对基地班学生实施导师制的体会

本总结了2届基地班学生参加生理学科导师组活动的情况,提出几点经验与体会。根据基地班学生的特点和实施导师的制的初衷,运用问题先导法,培养学生的创新意识,加强师生交流,使之成为合格的基础医学人才。     

开胸术后呼吸衰竭2 6例临床分析

目的:探讨开胸术后呼吸衰竭的发病原因、临床特点及有效的预防、治疗方法.方法:对本院1993年1月～1999年4月开胸术后并发呼吸衰竭的发病情况及其治疗结果进行统计分析.结果:术前心肺功能异常、麻醉、手术创伤、感染、术后出血等为术后呼吸衰竭的主要原因,其发生率为3.56%(26/730),死亡率为23.1%(6/26).结论:加强围手术期呼吸道管理,减轻手术创伤,预防和正确处理术后并发症是防止呼吸衰竭的关键,及时有效的机械通气是抢救成功的最有效手段.     

慢性乙型肝炎患者肝组织FasL表达与血清可溶性FasL水平的关系

目的：探讨慢性乙型肝炎患者肝组织中FasL表达与血清可溶性FasL水平的关系。方法：用免疫组化方法检测60例慢性乙型肝炎患者肝穿组织FasL的表达,同时用酶联免疫吸附试验检测血清可溶性FasL。结果：重度慢性乙型肝炎患者血清中sFasL水平＞中度＞轻度,各组间差异有显著意义（P＜0．01）;慢性乙型肝炎患者肝组织FasL表达的程度和血清sFasL水平与肝组织病变的活动性一致。结论：（1）肝组织炎症程度加重,肝组织FasL抗原的表达增强,同时血清中sFasL水平升高;（2）Fas介导的肝细胞凋亡在慢性乙型肝炎的发病机制中起重要作用,抑制肝细胞Fas表达有助于减轻肝细胞损伤程度。     

端粒酶及nm23的表达与胃腺癌预后的关系探讨

目的 :探讨端粒酶和nm2 3癌基因蛋白表达与胃癌根治术后复发及预后的关系。方法 :采用端粒酶原位分子杂交技术及免疫组化S P法分别对 4 5例原发性胃腺癌组织中端粒酶的活性及nm2 3进行检测 ,并结合内镜及随访资料进行分析。结果 :胃腺癌端粒酶阳性表达率及nm2 3低表达率在有淋巴结转移组显著高于无淋巴结转移组 ;在术后 5年内复发者中显著高于无复发者。虽然随着胃腺癌分化程度的降低及浸润深度的增加 ,端粒酶活性及nm2 3低表达呈增强趋势 ,但其差异无统计学意义。结论 :胃腺癌组织中端粒酶的活性表达及nm2 3的低表达与淋巴结转移及术后复发显著相关 ,两者的表达变化对判断胃癌术后复发及预后判断有重要临床意义     

一氧化氮对犬下食管括约肌压力的作用

目的 :应用苄基二甲基十四烷氯化铵 (benzyldim ethyltetradecyl amm onium chloride,BAC)建立犬下食管括约肌(L ES)无神经动物模型 ,研究一氧化氮 (NO)对 L ES压力的作用。方法 :将 BAC环周注入犬 L ES,对照组注入等量生理盐水 ,均于注射前及注射后 6周测定 L ES压力 ;并观察 L -精氨酸、D -精氨酸、硝普钠及一氧化氮合酶 (NOS)抑制剂 N-硝基 - L -精氨酸 (L - NNA)对 L ES压力的影响 ;此外还测定了两组犬 L ES中 NO含量和 NOS活性。结果 :BAC处理组 L ES压力 [(4 2 .43±4.19) m m Hg,1m m Hg=0 .133 k Pa]显著高于对照组 [(2 2 .71± 5 .19) mm Hg]。 L -精氨酸可使对照组 L ES压力降低 ;L - NNA使其增高 ,但对 BAC处理组 L ES压力均无影响。硝普钠可降低两组犬 L ES压力。对照组 L ES中 NO为 (6 .0 5 8± 2 .0 6 7)μm ol/g,NOS为 (1.45 8± 0 .146 ) U /mg;而 BAC处理组 NO为 (1.797± 0 .873)μmol/g,NOS为 (0 .46 3± 0 .0 39) U /m g,均较对照组显著降低 (P<0 .0 1)。 结论 :BAC可使犬 L ES压力增高 ,其机制可能与 L ES局部 NO减少有关。     

Outcomes and factors associated with early mortality in pediatric postcardiotomy veno‐arterial extracorporeal membrane oxygenation

Mortality and morbidity of children received veno‐arterial extracorporeal membrane oxygenation (VA‐ECMO) support after cardiac surgery remain high despite remarkable advances in medical management and devices. The purpose of this study was to describe outcomes and risk factors of applying VA‐ECMO in the surgical pediatric population. We retrospectively analyzed 85 consecutive pediatric patients (aged <18 years) who received postcardiotomy VA‐ECMO from January 2010 to December 2018. Median (IQR) age at ECMO implantation in this cohort was 12.7 (6.4, 43.2) months, median weight was 8.5 (6.0, 12.8) kg, mean ECMO duration was 143.2 ± 81.6 hours and mean hospital length of stay was 48.4 ± 32.4 days. Seventy‐five patients (88.2%) were indicated for postcardiotomy cardiogenic shock. The successful ECMO weaning rate was 70.6% and in‐hospital mortality was 52.9%. The most common diagnosis was transposition of great arteries (n = 18, 21.2%), while acute kidney injury occurred most often (n = 64, 75.3%). Multivariate logistic regression analysis showed that thrombocytopenia, hemolysis, and nosocomial infection were positively correlated with in‐hospital mortality. Multivariate Cox proportional hazard regression analysis presented that thrombocytopenia significantly increased the 180‐day mortality in patients with successful weaning. Therefore, multiple factors had adverse effects on prognosis. Patient selection and procedures from ECMO implantation to weaning need to be closely monitored and performed in a timely manner to improve outcome.     

Risk factors of uterine contraction after ureteroscopy in pregnant women with renal colic

International Urology and Nephrology - Ureteroscopy is widely applied in pregnant women with renal colic, but such patients are easy to experience uterine contraction after surgery. There are many...     

Safety and efficacy of ultrasound-guided low-pressure perfusion mini-percutaneous nephrolithotomy in children aged 1–7 years: a retrospective observational study

International Urology and Nephrology - This article analyzed the safety and efficacy of ultrasound-guided mini-percutaneous nephrolithotomy (MPCNL) with low-pressure perfusion for the treatment of...