New frontiers in ectopic pancreatic tissue management

The pancreatic development variations are relatively frequent but are often overlooked in clinical practice.This is due to the fact that they do not present with a distinct clinical picture and are usually asymptomatic.It also refers to the ectopic pancreatic tissue in the stomach.This anomaly can be diagnosed in any part of the digestive system,but it is mostly seen in the upper gastrointestinal tract,especially in the stomach,duodenum and jejunum.The management of this condition has evolved due to the development of minimally invasive procedures.

Effectiveness of Helicobacter pylori eradication in the treatment of early-stage gastric mucosa-associated lymphoid tissue lymphoma:An up-to-date meta-analysis

BACKGROUND Gastric mucosa-associated lymphoid tissue(MALT)lymphoma(GML)is usually a low-grade B-cell neoplasia strongly associated with Helicobacter pylori(H.pylori)-induced chronic gastritis.Clinical practice guidelines currently recommend H.pylori eradication as the preferred initial treatment for early-stage GML.To determine the practical effect of bacterial eradication as the sole initial therapy for early-stage GML,an updated analysis and review of available evidence is imperative.AIM To perform a meta-analysis to assess the rate of complete remission(CR)of H.pylori-positive early-stage GML following bacterial eradication.METHODS We performed independent,computer-assisted literature searches using the PubMed/MEDLINE,Embase,and Cochrane Central databases through September 2022.Prospective and retrospective observational studies evaluating the CR of early-stage GML following bacterial eradication in H.pylori-positive patients.The risk of bias was assessed using Joanna Briggs Institute(JBI)Critical Appraisal Tools.The pooled estimate of the complete histopathological remission rate and respective confidence intervals(95%CI)were calculated following the random-effects model.Heterogeneity and inconsistency were assessed using Cochran’s Q test and I2 statistic,and heterogeneity was defined as P<0.01 and I²>50%,respectively.Subgroup and meta-regression analyses were conducted to explore potential sources of heterogeneity.RESULTS The titles and abstracts of 1576 studies were screened;96 articles were retrieved and selected for full-text reading.Finally,61 studies were included in the proportional meta-analysis(P-MA).Forty-six were prospective and fifteen were retrospective uncontrolled,single-arm,observational studies.The overall risk of bias was low to moderate in all but a single report,with an average critical appraisal score across all studies of 79.02%.A total of 2936 H.pylori-positive early-stage GML patients,in whom H.pylori was successfully eradicated,were included in the analysis.The pooled CR of H.pylori-positive early-stage GML after bacterial eradication was 75.18%(95%CI:70.45%-79.91%).P-MA indicated the substantial heterogeneity in CR reported across studies(I2=92%;P<0.01).Meta-regression analysis identified statistically significant effect modifiers,including the proportion of patients with t(11;18)(q21;q21)-positive GML and the risk of bias in each study.CONCLUSION Comprehensive synthesis of available evidence suggests that H.pylori eradication is effective as the sole initial therapy for early-stage GML.Although the substantial heterogeneity observed across studies limits the interpretation of the pooled overall CR,the present study is a relevant to informing clinical practice.

清化饮对脾胃湿热证抑郁大鼠血清5-HT与海马组织的影响

目的探究清化饮对脾胃湿热证抑郁大鼠血清5-羟色胺(5-HT)与海马组织的影响。方法取30只SPF级SD雄性大鼠,随机选择其中5只作为空白组,其余25只采用高脂高糖饮食和慢性不可预知温和应激方法建立脾胃湿热证抑郁模型,将造模成功的大鼠随机分为模型组6只、清化饮组6只、舍曲林组6只、清化饮+舍曲林组7只。清化饮组给予清化饮27.5 g/kg灌胃,舍曲林组给予舍曲林片5.21 mg/kg灌胃,清化饮+舍曲林组给予清化饮27.5 g/kg和舍曲林片5.21 mg/kg灌胃,模型组给予等体积的生理盐水灌胃,均1次/d,连续灌胃28 d。末次灌胃结束后,应用强迫游泳实验评价大鼠的抑郁状态,记录大鼠灌胃前后的体重,ELISA法检测血清5-HT水平,HE染色观察海马组织病理形态。结果模型组大鼠的强迫游泳静止时间明显长于空白组(P<0.05),清化饮组、舍曲林组、清化饮+舍曲林组均明显短于模型组(P均<0.05);各组间大鼠体重比较差异无统计学意义(P>0.05),但清化饮组大鼠体重变化量明显低于舍曲林组(P<0.05);模型组大鼠血清5-HT水平与空白组比较差异无统计学意义(P>0.05),舍曲林组和清化饮+舍曲林组均明显高于模型组(P均<0.05),清化饮+舍曲林组明显高于清化饮组(P<0.05)。模型组大鼠海马体积减小,CA2~CA3区神经元细胞减少,沟回带厚度变薄;各药物组大鼠海马组织CA1~CA3区神经元细胞紧密排列,细胞形态未见异常,沟回带厚度较模型组厚;其中清化饮组、清化饮+舍曲林组海马组织CA1~CA3区神经元细胞紧密均匀排列优于舍曲林组。结论清化饮可改善脾胃湿热证大鼠抑郁样行为,其机制可能与提高血清5-HT水平,恢复海马组织病理形态有关。

内镜下套扎联合组织胶治疗食管胃底静脉曲张破裂出血的临床分析

目的探究内镜下套扎联合组织胶治疗食管胃底静脉曲张破裂出血的临床效果。方法回顾性选取2022年1月—2023年9月于淮安市第五人民医院实施内镜下套扎治疗(对照组)、内镜下套扎联合组织胶治疗(观察组)的食管胃底静脉曲张破裂出血患者的临床资料,各50例。对两组治疗有效率、并发症发生情况、生活质量进行分析。结果观察组治疗有效率高于对照组(94.00%vs 80.00%),差异有统计学意义(χ^(2)=4.332,P<0.05);观察组并发症发生率低于对照组(2.00%vs 16.00%),差异有统计学意义(χ^(2)=5.982,P<0.05);观察组生活质量高于对照组,差异有统计学意义(P<0.05)。结论食管胃底静脉曲张破裂出血患者经内镜下套扎与组织胶联合治疗,安全性较高,患者出现各种并发症的概率显著降低。

竹圈药灸治疗脾胃虚弱型慢性萎缩性胃炎的疗效观察

目的:探讨竹圈药灸治疗脾胃虚弱型慢性萎缩性胃炎(CAG)的效果。方法;选取2021年1月—2022年11月收治的80例脾胃虚弱型CAG患者,按随机数字表法分为观察组和对照组,每组40例。对照组采用加味六君子汤联合胃复春片治疗,观察组在此基础上加用竹圈药灸。比较两组的临床疗效、中医主要症候积分、胃镜及病理组织学变化、不良反应。结果:观察组总有效率高于对照组(P<0.05)。治疗3个月,两组中医主要症候积分、胃镜及病理组织学评分低于治疗前,且观察组低于对照组(P<0.05)。两组不良反应发生率比较,差异无统计学意义(P>0.05)。结论:在常规中医治疗基础上加用竹圈药灸治疗脾胃虚弱型CAG效果显著,可有效减轻患者症状,改善胃镜及病理组织检查结果,且不增加不良反应。

Stomach wall structure and vessels imaging by acoustic resolution photoacoustic microscopy

AIM To image stomach wall blood vessels and tissue, layerby-layer.METHODS We built up the acoustic resolution photoacoustic microscopy(AR-PAM) system for imaging layered tissues, such as the stomach wall. A tunable dye laser system was coupled to a fiber bundle. The fibers of the bundle were placed in nine directions with an incident angle of 45° around a high-frequency ultrasound transducer attached to the acoustic lens. This structure formed a dark field on the tissue surface under the acoustic lens and the nine light beams from the fibers to be combined near the focal point of the acoustic lens. The sample piece was cut from a part of the porcine stomach into a petri dish. In order to realize photoacoustic depth imaging of tumor, we designed a tumor model based on indocyanine green(ICG) dye. The ICG solution(concentration of 129 μM/m L)was mixed into molten gel, and then a gel mixture of ICG(concentration of 12.9 μM/mL) was injected into the stomach submucosa. The injection quantity was controlled by 0.1 mL to make a small tumor model. RESULTS An acoustic resolution photoacoustic microscopy based on fiber illumination was established and an axial resolution of 25 μm and a lateral resolution of 50 μm in its focal zone range of 500 μm has been accomplished. We tuned the laser wavelength to 600 nm. The photoacoustic probe was driven to do B-scan imaging in tissue thickness of 200 μm. The photoacoustic micro-image of mucosa and submucosa of the tissue have been obtained and compared with a pathological photograph of the tissue stained by hematoxylin-eosin staining. We have observed more detailed internal structure of the tissue. We also utilized this photoacoustic microscopy to image blood vessels inside the submucosa. High contrast imaging of the submucosa tumor model was obtained using ICG dye. CONCLUSION This AR-PAM is able to image layer-by-layer construction and some blood vessels under mucosa in the stomach wall without any contrast agents.

Distribution of nitric oxide synthase in stomach myenteric plexus of rats

AIM: To study the distribution of nitric oxide synthase (NOS) in rat stomach myenteric plexus.METHODS: The distribution of NOS in gastric wall was studied in quantity and location by the NADPH-diaphorase (NDP) histochemical staining method and whole mount preparation technique.RESULTS: NOS was distributed in whole stomach wall, most of them were located in myenteric plexus, and distributed in submucosal plexus. The shape of NOS positive neurons was basically similar, most of them being round and oval in shape. But their density, size and staining intensity varied greatly in the different parts of stomach. The density was 62 -± 38 cells/mm2(antrum), 43 ± 32 cells/mm2(body), and 32 ± 28 cells/mm2 (fundus), respectively. The size and staining intensity of NOS positive neurons in the fundus were basically the same, the neurons being large and dark stained, while they were obviously different in antrum. In the body of the stomach, the NOS positive neurons were in an intermediate state from fundus to antrum. There were some beadlike structures which were strung together by NOS positive varicosities in nerve fibers, some were closely adherent to the outer walls of blood vessels.CONCLUSION: Nitric oxide might he involved in the modulation of motility, secretion and blood ciroulation of the stomach, and the significant difference of NOS positive neurons in different parts of stomach myenteric plexus may be related to the physiologic function of stomach.

Low grade gastric mucosa associated lymphoid tissue lymphoma:Treatment strategies based on 10 year follow-up

AIM:To deduce strategic guidelines of gastric mucosa associated lymphoid tissue lymphoma (MALTOMA) by evaluating the long-term outcome of patients in respect to various treatment modalities.METHODS:A total of 55 patients with MALTOMA from May 1992 to August 2002 were retrospectively reviewed.RESULTS: Complete remission was obtained in 24 (82.8%) of 29 patients treated with anti Helicobacter pylori(H pylori) regimen only. The duration to reach complete remission was 12 months (85 percentile, 2-33 months).Five patients showed complete remission with radiation therapy (26-86 months).Two of them were Hpyloritreatment failure cases.CONCLUSION: Hpylorieradication is an effective primary treatment option for low grade MALTOMA and radiation therapy could be considered in patients with no evidence of Hpyloninfection or who do not respond to Hpylorieradication therapy 12 months after successful eradication.

Evaluate the Expression of uPA,PAI-1 in Human Gastric Cancer and its Correlation with the Angiogenesis by the Application of Tissue Microarray

OBJECTIVE To investigate the expression of urokinase-typeplasminogen (uPA), its inhibitor-1 (PAI-1) mRNA and its proteinin human gastric cancer and to find out the relationship among thetumor differentiation, angiogenesis, and other clinical pathologicfactors.METHODS In situ hybridization (ISH) was used to get the uPA,PAI-1mRNA in 110 cases with human gastric cancer in 2-tissuemicroarray (TMA). Immunohistochemical staining (S-P method)for uPA, PAI-1 protein and CD34 were performed in the 110 casesin 2 TMA.RESULTS The expression of the uPA, PAI-1mRNA and theirprotein happened in the cytoplasm of gastric cancer cells wereinduced by the poor differentiation of the GC, and the expressionof uPA had an increasing trend while the expression of the PAI-1had a decreasing trend. The microvessel density (MVD) had apositive correlation with the clinical stages and the significantrelationship with the lymph node metastasis (P < 0.05). The MVDin uPA positive group was significantly higher than those inuPA negative group (P < 0.05). The expression of PAI-1 has nocorrelation neither with the clinical stages nor the lymph nodemetastasis.CONCLUSION The uPA play an important role in invasion andmetastasis of GC through promoting angiogenesis. Interdictingthe secretion and function of the uPA may allow the target therapyagainst the tumor invasion. As a new high-throughput technology,the tissue microarray is a valuable way to be used in clinicaltreatment.

太平洋褶柔鱼胃组织微塑料的积聚特性

微塑料作为新型海洋环境污染物,具有化学性质稳定、难以降解的特点,可在海洋环境中长期积累,并在海洋生物体内沉积,最终可能对人类的健康产生威胁。为研究太平洋褶柔鱼胃组织中微塑料摄取特性及其与个体大小(胴长和体重)、胃重和摄食等级的关系。本研究根据2018年1—3月中国生产调查船于中国东海海域采集的30尾太平洋褶柔鱼样本,利用统计和相关性分析的方法,对其胃组织中微塑料的积聚特性进行了研究。结果显示,30尾测定样本中,有16尾的胃组织中发现18个微塑料。微塑料丰度为0~3个/尾,平均丰度0.6个/尾;长度为0.332~4.337 mm,平均长度1.252 mm,其中72%的微塑料小于1.000 mm。微塑料颜色主要为黑(38.9%)、白(33.3%)、蓝(22.2%)和灰(5.6%),材质主要由棉(44.5%)、聚酯纤维(33.3%)和人造丝(22.3%)组成。相关性分析表明,太平洋褶柔鱼胃组织微塑料的含量与胃重、摄食等级无显著相关性,但与胴长、体重和日龄呈显著正相关,并随着胴长、体重和日龄的增加而增加。研究表明,太平洋褶柔鱼胃组织中微塑料的沉积随个体的生长而逐渐增多,这说明其对微塑料的摄入量大于排出量。本研究为探讨我国东海头足类微塑料摄取特点及东海微塑料污染特性提供参考。

胃上皮样黏液纤维肉瘤1例

患者女,41岁,上腹部胀痛1月余,进食后加重,体质量下降约4kg,外院胃镜提示胃体部恶性肿瘤;既往体健。查体:贫血貌,上腹部压痛(+)。实验室检查:血红蛋白62g/L,红细胞计数3.30×10^(12)/L,大便潜血(+)。腹部CT:胃体小弯侧6.2cm×5.1cm×4.6cm混杂密度软组织肿块凸向腔内,突破胃浆膜层,与邻近脂肪间隙分界欠清(图1A),周围脂肪间隙内未见确切肿大淋巴结;增强后肿块实性部分明显不均匀强化。

Distinguishing malignant from normal stomach tissues and its in vivo, in situ measurement in operating process using FTIR Fiber-Optic techniques

Gastric tissue samples were studied using mid-IR fiber-optic attenuated total reflectance (ATR) spectroscopy. FTIR spectra of 90 tissue samples from 48 patients, including 32 normal and 58 malignant tissue samples, were chosen as examples. Malignancy was usually characterized by the absence of CH and C=O bands, a weak amide II band near 1545 cm-1, a shift of the amide I band to lower wave number, a decrease in the ～1450 cm-1 peak to less than the～1400 cm-1 peak. Subtraction spectra indicate that the amide I and amide II bands of normal and malignant tissues have larger differences in peak positions and relative intensities. The statistical analysis results confirm this conclusion. The results indicate that FTIR fiber optic techniques provide important information about cancerous tissue of the stomach, which can be used to differentiate the malignant tissue from the normal tissue. Based on the above results we successfully realize the detection of the tumor tissues of digestive tract in vivo and in situ. And the results of detection cancer near operating room and in vivo and in situ in the operating room are consistent with the conclusions for the samples stored in liquid N2, which is the basis for the clinical application.

Runx3、Smad4、Cdk2、p21在胃癌中的表达及其临床意义

背景:近年来,组织芯片技术已越来越多地应用于恶性肿瘤相关研究。TGF-β信号通路在恶性肿瘤的发生、发展中起重要作用。目的:应用组织芯片技术研究TGF-β信号通路相关分子Runx3、Smad4、Cdk2、p21在胃癌中的表达及其与胃癌临床病理特征和预后的关系。方法:收集130例行胃癌根治术患者的癌组织(n=130)癌旁组织(n=248)标本石蜡块,制成组织芯片,以免疫组化方法检测Runx3、Smad4、Cdk2、p21表达。结果:胃癌组织Runx3、Smad4、Cdk2、p21异常表达率分别为67.7%、35.4%、63.8%和70.0%,分别显著高于癌旁组织的14.1%、12.5%、18.1%和37.1%(P<0.05)。Runx3异常表达与胃癌组织学分型和淋巴结转移有关(P<0.05),Smad4和p21异常表达仅与胃癌组织学分型有关(P<0.05),Cdk2异常表达与胃癌组织学分型、淋巴结转移和TNM分期有关(P<0.05)。除Cdk2仅与Runx3相关外,Runx3、Smad4、p21在胃癌中的异常表达两两相关。Kaplan-Meier生存分析显示,Runx3、Smad4、p21异常表达组5年生存率分别显著低于相应正常表达组(P<0.05);Cox比例风险模型显示Runx3和Smad4为胃癌患者的独立预后因素。结论:Runx3、Smad4、Cdk2、p21可能在胃癌的发生、发展中起一定作用。由于四者间存在相互影响,Runx3和Smad4能否作为判断胃癌预后的指标尚待进一步研究。

胃癌干细胞在肿瘤侵袭转移及对血管形成的影响

背景:胃癌干细胞在新辅助化疗、常规治疗中发挥重要作用,与患者治疗后复发关系密切,但是该结论尚未得到证实。目的:观察胃癌干细胞在肿瘤侵袭转移中的作用及对血管形成能力的影响。方法:建立胃癌模型裸鼠,分离培养胃癌干细胞。将采集的胃癌干细胞分别进行细胞划痕实验、成环实验、细胞抑制率实验、细胞转移性实验及成瘤实验。结果与结论:(1)细胞形态:胃癌干细胞培养7 d后贴壁生长,贴壁细胞缺乏规律性,多为蝌蚪形;(2)划痕实验:划痕后0,24 h细胞划痕宽度差异有显著性意义(P<0.05);(3)成环实验:倒置显微镜观察显示,胃癌干细胞能形成环状;(4)细胞抑制率实验:奥沙利铂干预胃癌干细胞的半抑制浓度显著低于5-氟尿嘧啶(P<0.05);(5)胃癌肿瘤干细胞转移性实验:胃癌干细胞穿过基底膜细胞数显著高于细胞转移前(P<0.05);(6)成瘤实验:胃癌干细胞植入后胃癌组织质量显著重于普通胃癌裸鼠(P<0.05)。结果说明:胃癌干细胞在肿瘤侵袭、转移中发挥重要的作用,具备较强的血管形成能力。

藿香正气液对大鼠P物质的影响

目的:观察藿香正气液对大鼠P物质(SP)的影响。方法:将大鼠随机分为实验(藿香正气液)组和对照(生理盐水)组,分别灌胃相应药物1h、6h后观察大鼠胃肠动力的变化,测定血浆、胃窦和空肠组织匀浆中SP的含量及观察胃窦、空肠组织中SP阳性产物的分布情况。结果:实验组用药后大鼠胃肠动力显著增强,以用药后1h作用更明显;与对照组比较,实验组血浆、胃窦及空肠组织匀浆中SP含量及胃窦和空肠组织中SP阳性产物含量明显增加(P<0.05或P<0.01)。结论:藿香正气液促胃动力作用可能与其对SP的影响有关。

黄羊胃肠组织形态学研究

采用石蜡切片方法对健康成年黄羊胃、肠进行了组织形态学观察。结果表明．瘤胃、网胃和瓣胃的胃壁构造基本相同、粘膜上皮都是复层扁平上皮．浅层细胞角化。瘤胃粘膜上形成许多大小不等的舌状乳头．无粘膜肌层；网胃粘膜形成许多皱襞，在皱襞上和网孔底上有许多圆锥状乳头．网胃皱襞两侧有向垂直方向伸出的嵴瓣胃粘膜形成各种不同长度的瓣叶．瓣叶两侧遍布粗糙短小乳头．瓣胃粘膜肌发达．大瓣叶内中央肌层与两侧的粘膜肌层行走方向彼此垂直。前三个胃粘膜固有膜内均无腺体。皱胃粘膜光滑、胃底区粘膜有１３～１６个螺旋形大皱襞．胃小密集、粘膜上皮由单层柱状上皮细胞构成．固有膜发达．由密集的胃底腺所占据．但腺管较短。小肠较长，固有层内有小肠腺及淋巴组织．十二指肠粘膜下层有十二指肠腺：大肠粘膜光滑．无环行皱襞和肠绒毛、固有膜内有直而密集的大肠腺．肠腺由单层柱状细胞和杯状细胞组成、直肠壁内弹性纤维不明显。

胃癌微环境转化后骨髓间充质干细胞的体内致瘤性

背景:临床胃癌组织及裸鼠体内致瘤组织分离得到的胃癌间质干细胞,其生物学特性与骨髓间充质干细胞相似,并证明是肿瘤微环境的重要组成部分,可促进肿瘤的生长。目的:观察经胃癌微环境转化后的骨髓间充质干细胞在体内是否具有致瘤能力。方法:设立骨髓间充质干细胞单独常规培养为对照组,实验组采用Transwell小室将人胃癌BCG-823细胞与大鼠骨髓间充质干细胞非接触共培养建立胃癌微环境。收集骨髓间充质干细胞,分别在裸鼠腋下部位行皮下接种对照组细胞或实验组共培养转化后的骨髓间充质干细胞,观察裸鼠皮下有无结节形成;免疫组织化学法检测肿瘤组织潜伏膜蛋白LMP1及抑癌基因TCF21的表达;透射电镜观察肿瘤组织的超微结构。结果与结论:(1)肿瘤结节:对照组裸鼠接种单独培养的骨髓间充质干细胞7-14 d后,始终未形成肿瘤结节。实验组在第7天皮下开始出现肿瘤结节,至14 d肿瘤结节显著增大并稳定;(2)免疫组织化学显示,实验组潜伏膜蛋白LMP1呈显著现高表达状态,抑癌基因TCF21呈低表达状态;(3)透射电镜结果显示肿瘤体组织体积较大,形态不规则,细胞微绒毛异常增多,表面有许多树枝状突起,细胞内成分发生明显改变;(4)结果表明,经胃癌微环境转化的骨髓间充质干细胞具有体内致瘤能力。

胃癌中骨桥蛋白与OCT2的表达及意义

目的探讨骨桥蛋白(osteopontin,OPN)及转录因子OCT2在胃癌中的表达及其与临床病理参数及预后的关系。方法应用组织微阵列技术和免疫组化SP法检测99例胃癌组织中OPN蛋白与OCT2蛋白的表达情况。结果99例胃癌中OPN蛋白及OCT2蛋白的阳性表达率分别为60·61%、54·55%;OPN蛋白表达与肿瘤大小、浸润深度、脉管侵犯、淋巴结转移及远处转移呈正相关;OCT2蛋白表达也与肿瘤大小、浸润深度、脉管侵犯、淋巴结转移及远处转移呈正相关;OPN蛋白表达与OCT2蛋白表达呈正相关;OPN及OCT2蛋白阳性表达病例的平均生存时间和5年生存率均明显低于阴性表达的病例。结论OPN及OCT2蛋白表达可预测胃癌浸润和转移,是指导临床治疗及评估预后的有价指标。

开食料中性洗涤纤维水平对羔羊消化道组织形态和消化酶活性的影响

本试验旨在研究开食料中性洗涤纤维(NDF)水平对羔羊消化道组织形态和消化酶活性的影响。选择健康的初生湖羊公羔[(初生重(3.01±0.12)kg]18只,随机分为3组,每组6只羊。对照组随母羊哺乳,试验组随母羊哺乳同时于7日龄开始补饲NDF水平分别为15.13%(高NDF水平组)和10.00%(低NDF水平组)的开食料。35日龄时屠宰。结果表明:1)高NDF水平组的瘤胃乳头长度、肌层厚度,网胃乳头长度、乳头宽度、肌层厚度,瓣胃瓣叶宽度、肌层厚度以及皱胃肌层厚度均极显著高于对照组(P<0.01),瓣胃瓣叶长度、皱胃黏膜层厚度均显著高于对照组(P<0.05)。高NDF水平组的瘤胃乳头长度、网胃肌层厚度均极显著高于低NDF水平组(P<0.01),瓣胃瓣叶宽度、肌层厚度以及皱胃黏膜层厚度均显著高于低NDF水平组(P<0.05)。2)高、低NDF水平组的十二指肠隐窝深度极显著低于对照组(P<0.01),高、低NDF水平组的十二指肠肌层厚度极显著高于对照组(P<0.01)。高NDF水平组的空肠绒毛长度极显著高于对照组和低NDF水平组(P<0.01),高、低NDF水平组的空肠隐窝深极显著低于对照组(P<0.01),高NDF水平组的空肠肌层厚度显著高于对照组(P<0.05)。高、低NDF水平组的回肠绒毛长度极显著高于对照组(P<0.01),高、低NDF水平组的回肠肌层厚度极显著高于对照组(P<0.01)。3)对照组的瘤胃蛋白酶活性极显著高于高、低NDF水平组(P<0.01),高NDF水平组极显著高于低NDF水平组(P<0.01);低NDF水平组的瘤胃α-淀粉酶活性显著高于对照组(P<0.05)。低NDF水平组的空肠α-淀粉酶活性显著高于对照组和高NDF水平组(P<0.05),低NDF水平组的十二指肠、空肠和回肠胰蛋白酶活性显著高于对照组(P<0.05)。由此可见,15.13%NDF水平的开食料有利于断奶前羔羊消化道的发育。

TFF3和CD147在不同胃黏膜病变中的表达及其与血管生成的关系

目的:探讨三叶因子3(trefoil factor 3,TFF3)和CD147在不同胃黏膜病变中的表达与间质微血管(microvessel density,MVD)值的关系.方法:利用组织芯片技术制作302例的组织芯片,同时采用S-P免疫组化方法检测TFF3、CD147和CD34表达.结果:萎缩性胃炎、不典型增生和胃癌各组TFF3表达均高于浅表性胃炎和正常组(48.3%,51.9%,41.7%vs13.3%;48.3%,51.9%,41.7%vs3.6%,均P<0.01);胃癌CD147表达和MVD高于正常胃黏膜、浅表性胃炎、萎缩性胃炎和不典型增生(78.9%vs14.3%,43.3%,51.2%,59.3%;31.86±9.92vs26.10±6.82,24.74±5.49,20.77±6.87,14.95±6.28,均P<0.05),浅表性胃炎CD147表达和MVD与正常胃黏膜之间差异显著(43.3%vs14.3%;20.77±6.87vs14.95±6.28,均P<0.05).TFF3、CD147表达和MVD与胃癌淋巴结转移和TNM分期有关(P<0.05),TFF3表达与胃癌组织学类型有关(P<0.05),CD147表达与胃癌分化程度和胃癌浸润深度有关(P<0.01),MVD与胃癌浸润深度有关(P<0.05).TFF3、CD147阳性表达的MVD高于阴性的(35.47±9.41vs29.27±9.50;33.33±9.62vs26.40±9.17,P<0.01).TFF3和CD147表达与MVD呈显著正相关(r=0.323,r=0.279).TFF3(+)/CD147(+)者在深度浸润(T3-4)、临床分期TNMⅢ-Ⅳ、淋巴结转移的比率和MVD最高,且明显高于TFF3(-)/CD147(-)者(P<0.05).结论:TFF3、CD147和CD34在胃黏膜癌变和癌变后的恶性演进过程中起重要作用,可作为胃癌的早期诊断和预测胃癌发生转移的重要指标.