The influence of antisecretory agents on the antral gastric mucosa in patients with duodenal ulcer

Changes in the antral gastric mucosa of patients with doudenal ulcer after a long-term administration of antisecretory agents were studied. The subjects were five patients with a different duration of the disease. The methods applied included light and electron microscopy of tissue samplings taken from the antral part of the stomach during the periods of exacerbation and remission. In addition to well-known morphological changes, cellular principalis not typical of antral gastric mucosa were found in one patient during exacerbation and remission periods.     

喂食法留置胃管在球麻痹病人中的应用及效果

目的 探讨喂食法留置胃管在球麻痹病人中的应用效果.方法 采用随机数字表法将220例病人随机分为实验组和对照组,实验组采用喂食法留置胃管,对照组采用常规方法留置胃管.结果 两种置管方法所需时间、置管一次成功率、不良反应发生率比较,差异具有统计学意义(P＜0.01).结论 球麻痹病人采用喂食法留置胃管优于常规方法.     

进展期胃窦癌淋巴结转移分析

目的探讨进展期胃癌根治术的淋巴结清扫范围.方法对1988～2002年243例施行根治术(D2、D2 或D3)的进展期胃窦癌患者的病理检查进行回顾性分析.结果本组淋巴结转移率72.8%.Borrmann Ⅰ、Ⅱ、Ⅲ、Ⅳ型淋巴结转移率分别是42.9%、47.6%、85.1%、100.0%.Ⅰ、Ⅱ型与Ⅲ、Ⅳ型淋巴结转移有显著性差异(p＜0.01);Ⅲ、Ⅳ型淋巴转移距离远,N3站淋巴结转移率26.4%.T2和T3、4患者淋巴结转移率分别为40%和80.3%,N3站淋巴结转移分别为2.2%和20.7%,亦有显著性差异(p＜0.01).转移淋巴结小结节型和一般型转移范围较广泛,N3站淋巴结转移率分别为35.5%和20.0%.在N3站转移的患者中以No(12、13)转移率最高(16.9%、11.9%).结论对进展期胃窦癌,BorrmannⅢ、Ⅳ型,T3、T4者,转移淋巴结小结节型或一般型患者,胃癌根治术应施行D3淋巴结清扫;No(12、13)清扫应纳入标准D2的手术常规.     

AMPK和抵抗素与2型糖尿病合并胃癌的相关性研究

目的研究血清单磷酸腺苷激活蛋白激酶（AMPK）和抵抗素与2型糖尿病（DM）合并胃癌（GC）的关系。方法选择2013年1月至2014年5月就诊的2型DM患者30例（DM组）、DM合并GC患者48例（DM并GC组）及健康人群30例（NC组）为研究对象,ELISA法测定血清AMPK和抵抗素的水平;同时测定空腹血糖、空腹胰岛素、血脂等生化指标;采用稳态模型计算胰岛素抵抗指数（HOMA-IR）。结果 DM组及DM并GC组的抵抗素水平分别为（5.54±1.29）、（6.86±1.65）μg/L,均高于NC组的（3.04±1.49）μg/L（P均〈0.01）。DM组及DM并GC组AMPK水平分别为（5.53±0.98）、（3.32±0.90）U/L,均低于NC组的（7.54±0.98）U/L（P均〈0.01）。抵抗素与空腹胰岛素及HOMA-IR呈正相关（r=0.620,0.668,P均〈0.01）,AMPK与空腹胰岛素及HOMA-IR呈负相关（r=-0.790,-0.822,P均〈0.01）,抵抗素与AMPK呈负相关（r=-0.699,P〈0.01）;抵抗素和AMPK是HOMA-IR的独立影响因素（β=0.183,P〈0.05;β=-0.694,P〈0.01）;AMPK是DM并GC的保护因素（OR=0.118,P〈0.05）;抵抗素是DM并GC患者淋巴结转移的危险因素（OR=4.716,P〈0.01）。结论 AMPK和抵抗素参与2型DM合并GC的发生及淋巴结转移,有可能作为2型DM合并GC的治疗靶点。     

饮食护理对糖尿病胃轻瘫病人胃排空的影响

2型糖尿病病人至少有5 0 %以上伴有糖尿病胃轻瘫(dia beticgastroparesis) [1] 。糖尿病胃轻瘫系指胃动力障碍,排空延迟,但不伴有机械性梗阻的一组综合征。主要表现为恶心、呕吐、上腹饱胀、嗳气、上腹痛、体重下降、胃潴留或因不消化的固体食物排空障碍形成胃石等。糖尿病胃轻     

血清脂联素水平与胃癌转移的相关性研究

目的:探索血清脂联素在胃癌患者的表达水平及在胃癌不同临床病理因素之间的差异。方法:收集95例胃癌患者血清样本。同时选择30例正常人血清作为对照。检测并比较不同分组患者的血清脂联素、血清总胆固醇(TC),甘油三酯(TG),高密度脂蛋白胆固醇(HDL-C)和低密度脂蛋白胆固醇(LDL-C)水平。结果:与正常人群相比,胃癌患者具有较低的血清脂联素和较高的血脂水平。而早期转移的胃癌患者血清脂联素水平进一步降低,血脂水平更高。胃癌患者血清脂联素和TC、LDL-C、HDL-C均存在负相关,并且有显著性(P<0.05)。结论:低血清脂联素与胃癌患者的淋巴结转移相关,可能成为反应胃癌患者疾病进展的一个血清指标。     

胃电起搏对大鼠胃窦Cajal间质细胞的影响

目的研究胃电起搏对大鼠Cajal间质细胞(ICC)数量和C-kit受体表达的影响,探讨ICC在胃电起搏调控胃慢波活动中的作用。方法建立Wistar大鼠胃起搏模型,将大鼠分为起搏组(n=8)和对照组(n=8)。选用适宜的起搏参数以控制胃电慢波,持续刺激1 h,连续刺激20 d后处死大鼠并取胃窦组织,以免疫组织化学方法结合图像分析技术和Western blot方法分析C-kit受体免疫反应阳性细胞和C-kit蛋白表达变化。结果起搏组大鼠胃肌间神经丛内C-kit免疫反应阳性产物面积和平均光密度值均显著高于对照组[(1976.76±336.67)vs(1368.23±459.32),P<0.05;(0.19±0.50)vs(0.12±0.52),P<0.05],刺激组大鼠胃窦组织C-kit蛋白表达显著增高[(0.50±0.09)vs(0.29±0.02),P<0.05]。结论胃电起搏后胃窦肌间神经丛ICC数量增多,参与了胃电起搏调控胃慢波活动。     

抵抗素样分子α在胃癌中的表达及其与微血管形成相关性的研究

目的:检测抵抗素样分子α(resistin-like moleculeα,RELM-α)在胃癌中的表达情况,研究其在胃癌预后判断中的作用及其可能的相关机制,为疾病的治疗提供依据。方法:收集92例胃癌组织及相应的癌旁组织标本,行免疫组织化学染色,定量检测其中RELM-α和血管内皮生长因子(vascular endothelial growth factor,VEGF)的表达情况,并分析其与患者的性别、年龄、疾病的分期、肿瘤直径、组织分化、大体分型间的关系。同时,测定2种标本中的CD34表达情况,分析肿瘤微血管密度(microvessel density,MVD),探讨RELM-α水平与肿瘤微血管生成间的关系。结果:RELM-α及VEGF在胃癌组织中的阳性表达率分别为64.1%和83.6%,而在癌旁组织中的阳性表达率分别为16.3%和27.1%,MVD在胃癌组织中的测定值(17.23±8.94)高于癌旁组织(6.58±2.32),差异有统计学意义(P<0.05)。不同性别、年龄、组织分化、大体分型的胃癌患者间的RELM-α表达水平差异无统计学意义,但在不同肿瘤的直径及分期的患者间差异有统计学意义(P<0.05),同时统计学分析显示RELM-α的表达与MVD、VEGF的表达密切相关。结论:RELM-α在胃癌组织中高表达,可能成为评估疾病预后的客观指标之一,且其在疾病进展中参与了微血管的形成。     

Lateral hypothalamic sites in cats for stimulation of gastric antral contractions

Electrical stimulation through a bipolar electrode introduced into either the left or right lateral hypothalamus of anesthetized cats by means of a stereotaxic instrument elicited stimulus-bound phasic antral contractions in the anesthetized cat's stomach of much greater force than recorded under basal conditions. There was no change in gastric acid output. The response was abolished by bilateral cervical vagotomy or atropine. Stimulation during an intravenous infusion of pentagastrin did not alter the gastric acid secretory response. A hypothalamic vagal and cholinergic excitatory gastric antral motor pathway to the stomach has been demonstrated, independent of an acid secretory response.     

Ultrastructural changes in cells of the antral gastric mucosa in patients with duodenal ulcers treated with melatonin

AIM: To study ultrastructural condition of the cels in antral gastric mucosa in patients with duodenal ulcer on melatonin treatment. MATERIAL AND METHODS: Electron microscopy was made of biopsy specimens of antral stomach mucosa obtained from 14 patients with duodenal ulcer (DU) in exacerbation and in clinicoendoscopic remission after therapy with proton pump blockers (group 1) and after this therapy combined mth melatonin (group 2). RESULTS: In patients of group 2 there was an increased number of differentiated cover and principal cells, moderately differentiated parietal cells predominated. CONCLUSION: Melatonin is one of the drugs potentiating trophic processes in gastric mucosa.     

Imatinib‐induced gastric antral vascular ectasia in a patient with chronic myeloid leukemia

Gastric antral vascular ectasia (GAVE) has been reported very rarely in imatinib‐treated gastrointestinal stromal tumor (GIST) and scleroderma/pulmonary hypertension patients. We present the first report of a case of GAVE in a chronic myeloid leukemia (CML) patient after treatment with imatinib. This diagnosis should be considered in CML patients with upper gastrointestinal symptoms and anemia.