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| 1 | Effects of creep feeding and supplemental glutamine or glutamine plus glutamate (Aminogut) on pre- and post-weaning growth performance and intestinal health of piglets显示文摘Background: Creep feeding is used to stimulate piglet post-weaning feed consumption.L-Glutamine(GLN) is an important source of fuel for intestinal epithelial cells.The objective of this study was to determine the impact of creep feeding and adding GLN or AminoGut(AG;containing glutamine + glutamate) to pre-and post-weaning diets on pig performance and intestinal health.Litters(N = 120) were allotted to four treatments during 14–21 d of lactation: 1) No creep feed(NC,n = 45);2) creep fed control diet(CFCD,n = 45);3) creep fed 1% GLN(CFGLN,n = 15);4) creep fed.88% AG(CFAG,n = 15).After weaning,the NC and CFCD groups were sub-divided into three groups(n = 15 each),receiving either a control nursery diet(NC-CD,CFCD-CD) or a diet supplemented with either GLN(NC-GLN,CFCD-GLN) or with AG(NC-AG,CFCD-AG).Litters that were creep fed with diets containing GLN or AG also were supplemented with those amino acids in the nursery diets(CFGLN-GLN,CFAG-AG).Glutamine was added at 1% in all three post-weaning diet phases and AG was added at.88% in phase 1 and 2 and at.66% in phase 3.Results: Feed conversion(feed/gain) showed means among treatment means close to significance(P = 0.056) and Tukey's test for pairwise mean comparisons showed that Pigs in the CFGLN-GLN group had the best feed conversion(feed/gain) in the first three-week period post-weaning,exceeding(P = 0.044) controls(CFCD-CD) by 34%.The NC-AG group had(P = 0.02) the greatest feed intake in the last three week of the study,exceeding controls(CFCD-CD) by 12%.CFGLN-GLN,CFCD-GLN and sow reared(SR) pigs had the greatest(P = 0.049) villi height exceeding the CFCD-AG group by 18%,20% and 19% respectively.The CFAG-AG group had the deepest(P = 0.001) crypts among all treatments.CFGLN-GLN,CFCD-GLN and SR groups had the greatest(P = 0.001) number of cells proliferating(PCNA) exceeding those in the NC-CD group by 43%,54% and 63% respectively.Sow reared pigs showed the greatest(P = 0.001) intestinal absorption capacity for xylose and mannitol.Conclusion: Supplementation of creep feed and nursery diets with GLN and/or AminoGut in the first three week improved feed conversion possibly due to improved intestinal health. | Rafael A Cabrera James L Usry Consuelo Arrellano Eduardo T Nogueira Marianne Kutschenko Adam J Moeser Jack Odle | 2013 | Journal of Animal Science and Biotechnology2013，4，3： | 17 |
| 2 | Potential Toxicological and Cardiopulmonary Effects of PM2,5 Exposure and Related Mortality:Findings of Recent Studies Published during 2003-2013显示文摘INTRODUCTION Air pollution has become a serious environmental issue owing to its diverse harmful effects on the physical and biological environment.According to the Environmental Protection Agency(EPA)and the World Health Organization(WHO)[1-2],air pollution affects millions of people worldwide.Hundreds of thousands of deaths each year and a range of diseases, | Mohammed O.A.Mohammed SONG Wei Wei MA Wan Li LI Wen Long LI Yi Fan Afed Ullah Khan Mohammed A.E.M.Ibrahim Osman Adam Maarouf Alshebli A Ahmed John J.Ambuchi | 2016 | Biomedical and Environmental Sciences2016，29，1： | 16 |
| 3 | Retrospective study on mixed neuroendocrine non-neuroendocrine neoplasms from five European centres显示文摘BACKGROUND Mixed neuroendocrine non-neuroendocrine neoplasm(MiNEN)is a rare diagnosis,mainly encountered in the gastro-entero-pancreatic tract.There is limited knowledge of its epidemiology,prognosis and biology,and the best management for affected patients is still to be defined.AIM To investigate clinical-pathological characteristics,treatment modalities and survival outcomes of a retrospective cohort of patients with a diagnosis of MiNEN.METHODS Consecutive patients with a histologically proven diagnosis of MiNEN were identified at 5 European centres.Patient data were retrospectively collected from medical records.Pathological samples were reviewed to ascertain compliance with the 2017 World Health Organisation definition of MiNEN.Tumour responses to systemic treatment were assessed according to the Response Evaluation Criteria in Solid Tumours 1.1.Kaplan-Meier analysis was applied to estimate survival outcomes.Associations between clinical-pathological characteristics and survival outcomes were explored using Log-rank test for equality of survivors functions(univariate)and Cox-regression analysis(multivariable).RESULTS Sixty-nine consecutive patients identified;Median age at diagnosis:64 years.Males:63.8%.Localised disease(curable):53.6%.Commonest sites of origin:colon-rectum(43.5%)and oesophagus/oesophagogastric junction(15.9%).The neuroendocrine component was;predominant in 58.6%,poorly differentiated in 86.3%,and large cell in 81.25%,of cases analysed.Most distant metastases analysed(73.4%)were occupied only by a poorly differentiated neuroendocrine component.Ninety-four percent of patients with localised disease underwent curative surgery;53%also received perioperative treatment,most often in line with protocols for adenocarcinomas from the same sites of origin.Chemotherapy was offered to most patients(68.1%)with advanced disease,and followed protocols for pure neuroendocrine carcinomas or adenocarcinomas in equal proportion.In localised cases,median recurrence free survival(RFS);14.0 months(95%CI:9.2-24.4),and median overall survival(OS):28.6 months(95%CI:18.3-41.1).On univariate analysis,receipt of perioperative treatment(vs surgery alone)did not improve RFS(P=0.375),or OS(P=0.240).In advanced cases,median progression free survival(PFS);5.6 months(95%CI:4.4-7.4),and median OS;9.0 months(95%CI:5.2-13.4).On univariate analysis,receipt of palliative active treatment(vs best supportive care)prolonged PFS and OS(both,P<0.001).CONCLUSION MiNEN is most commonly driven by a poorly differentiated neuroendocrine component,and has poor prognosis.Advances in its biological understanding are needed to identify effective treatments and improve patient outcomes. | Melissa Frizziero Xin Wang Bipasha Chakrabarty Alexa Childs Tu V Luong Thomas Walter Mohid S Khan Meleri Morgan Adam Christian Mona Elshafie Tahir Shah Annamaria Minicozzi Wasat Mansoor Tim Meyer Angela Lamarca Richard A Hubner Juan W Valle Mairéad G McNamara | 2019 | World Journal of Gastroenterology2019，25，39： | 13 |
| 4 | Surgical treatment for liver cancer显示文摘Primary liver cancer is amongst the commonest tumors worldwide,particularly in parts of the developing world,and is increasing in incidence. Over the past three decades,surgical hepatic resection has evolved from a high risk,resource intensive procedure with limited application,to a safe and commonly performed operation with a range of indications. This article reviews the approach to surgical resection for malignancies such as hepatocellular cancer,metastatic liver de-posits and neuroendocrine tumors. Survival data after resection is also reviewed,as well as indications for curative resection. | Nicole C Tsim Adam E Frampton Nagy A Habib Long R Jiao | 2010 | World Journal of Gastroenterology2010，16，8： | 12 |
| 5 | Stroke mechanisms and outcomes of isolated symptomatic basilar artery stenosis显示文摘background While diffuse atherosclerotic disease affecting the posterior circulation has been described extensively,the prevalence,natural history and angiographic characteristics of isolated symptomatic basilar artery stenosis(ISBAS)remain unknown.Methods We reviewed our prospective institutional database to identify patients with≥50% symptomatic basilar artery(BA)stenosis without significant atherosclerotic burden in the vertebral or posterior cerebral arteries.Stroke mechanism,collateral circulation,and degree and length of stenosis were analysed.The primary outcome was time from index event to new transient ischaemic attack(TIA),acute ischaemic stroke(AIS)or death.Other outcome variables included modified Rankin Scale(mRS)score on discharge and last follow-up.results Of 6369 patients with AIS/TIA,91(1.43%)had ISBAS.Seventy-three(80.2%)patients presented with AIS and 18(19.8%)with TIA.Twenty-nine(31.9%)were women and the median age was 66.8±13.6 years.The mean follow-up time was 2.7 years.The most common stroke mechanism was artery-to artery thromboembolism(45.2%),followed by perforator occlusion(28.7%)and flow-dependent/hypoperfusion(15.1%).The percentage of stenosis was lower in patients who had favourable outcome compared with those with mRS 3-6 on discharge(78.3±14.3 vs 86.9±14.5,p=0.007).Kaplan-Meier curves showed higher recurrence/death rates in patients with≥80% stenosis,mid-basilar location and poor collateral circulation.Approximately 13% of patients with ISBAS presented with complete BA occlusion.Conclusion ISBAS is an uncommon(1.43%)cause of TIA and AIS.Men in their 60s are mostly affected,and artery-to artery embolism is the most common stroke mechanism.Mid-basilar location,≥80% stenosis and poor collateral circulation are important factors associated with worse prognosis. | Edgar A Samaniego Amir Shaban Santiago Ortega-Gutierrez Jorge A Roa David M Hasan Colin Derdeyn Biyue Dai Harold Adams Enrique Leira | 2019 | Stroke & Vascular Neurology2019，4，4： | 10 |
| 6 | 晋南丘陵旱地麦田土壤水分特征及其运行规律显示文摘研究了晋南黄土高原半干旱地区旱地麦田常年土壤水分有关的物理特性及不同土层毛管水含量、田间持水量、田间含水量、有效水以及不同水势下的土壤含水量等基本特征 ,并采用等值线图析法分析了丰水年 (6 0 0mm降水 )、少水年 (4 0 0mm)、平水年 (5 0 0mm)旱地麦田土壤水分利用的空间结构、时间结构以及利用量的动态差异 ,得到十分直观的结果。 | 苗果园 高志强 尹钧 周乃键 W A Adams | 2004 | 作物学报2004，30，7： | 10 |
| 7 | Association between calcium sensing receptor gene polymorphisms and chronic pancreatitis in a US population:Role of serine protease inhibitor Kazal 1type and alcohol显示文摘AIM: To test the hypothesis that calcium sensing receptor (CASR) polymorphisms are associated with chronic pancreatitis (CP), and to determine whether serine protease inhibitor Kazal 1type (SPINK1) N34S oralcohol are necessary co-factors in its etiology. METHODS: Initially, 115 subjects with pancreatitis and 66 controls were evaluated, of whom 57 patients and 21 controls were predetermined to carry the high-risk SPINK1 N34S polymorphism. We sequenced CASR gene exons 2, 3, 4, 5 and 7, areas containing the majority of reported polymorphisms and novel mutations. Based on the initial results, we added 223 patients and 239 controls to analyze three common nonsynonymous single nucleotide polymorphisms (SNPs) in exon 7 (A986S, R990G, and Q1011E). RESULTS: The CASR exon 7 R990G polymorphism was signifi cantly associated with CP (OR, 2.01; 95% CI, 1.12-3.59; P = 0.015). The association between CASR R990G and CP was stronger in subjects who reported moderate or heavy alcohol consumption (OR, 3.12; 95% CI, 1.14-9.13; P = 0.018). There was no association between the various CASR genotypes and SPINK1 N34S in pancreatitis. None of the novel CASR polymorphisms reported from Germany and India was detected. CONCLUSION: Our United States-based study confirmed an association of CASR and CP and for the first time demonstrated that CASR R990G is a signifi cant risk factor for CP. We also conclude that the risk of CP with CASR R990G is increased in subjects with moderate to heavy alcohol consumption. | Venkata Muddana Janette Lamb Julia B Greer Beth Elinoff Robert H Hawes Peter B Cotton Michelle A Anderson Randall E Brand Adam Slivka David C Whitcomb | 2008 | World Journal of Gastroenterology2008，14，28： | 7 |
| 8 | 局部应用马来酸噻吗洛尔治疗婴幼儿血管瘤显示文摘局部应用β受体阻滞剂非处方药物马来酸噻吗洛尔眼药水治疗婴幼儿血管瘤(IH),目前已经成为口服普萘洛尔治疗IH的有益补充。但是,关于其疗效及安全性的大样本研究尚未开展。该文旨在回顾噻吗洛尔的疗效,并对用药后产生的副作用进行评估。 | Püttgen K Lucky A Adams D | 2016 | 中国口腔颌面外科杂志2016，14，5： | 7 |
| 9 | 内皮Notch信号的抑制阻碍脂肪酸转运并导致成年心脏的代谢和血管重塑显示文摘营养成分在被肌肉细胞代谢利用之前通过内皮细胞转运。然而,对于内皮运输过程的调节知之甚少。Notch信号传导是发育过程中代谢和血管生成的关键调控因子。在该研究中,Jabs等研究了成年小鼠内皮Notch信号的遗传和药理学调控如何影响内皮脂肪酸转运、心脏血管生成和心脏功能。 | 刘青 叶鹏 Jabs M Rose AJ Lehmann LH Taylor J Moll I Sijmonsma TP Herberich SE Sauer SW Poschet G Federico G Mogler C Weis EM Augustin HG Yan M Gretz N Schmid RM Adams RH Gr9ne HJ Hell R Okun JG Backs J Nawroth PP Herzig S Fischer A | 2018 | 中华高血压杂志2018，26，3： | 6 |
| 10 | Clinical application of concentrated bone marrow aspirate in orthopaedics:A systematic review显示文摘AIM To examine the evidence behind the use of concentrated bone marrow aspirate(c BMA) in cartilage, bone, and tendon repair; establish proof of concept for the use of cB MA in these biologic environments; and provide the level and quality of evidence substantiating the use of cB MA in the clinical setting.METHODS We conducted a systematic review according to PRISMA guidelines. EMBASE, MEDLINE, and Web of Knowledge databases were screened for the use of cB MA in the repair of cartilage, bone, and tendon repair. We extracted data on tissue type, cB MA preparation, cB MA concentration, study methods, outcomes, and level of evidence and reported the results in tables and text.RESULTS A total of 36 studies met inclusion/exclusion criteria and were included in this review. Thirty-one of 36(86%) studies reported the method of centrifugation and preparation of cB MA with 15(42%) studies reporting either a cell concentration or an increase from baseline. Variation of c BMA application was seen amongst the studies evaluated. Twenty-one of 36(58%) were level of evidence Ⅳ, 12/36(33%) were level of evidence Ⅲ, and 3/36(8%) were level of evidence Ⅱ. Studies evaluated full thickness chondral lesions(7 studies), osteochondral lesions(10 studies), osteoarthritis(5 studies), nonunion or fracture(9 studies), or tendon injuries(5 studies). Significant clinical improvement with the presence of hyaline-like values and lower incidence of fibrocartilage on T2 mapping was found in patients receiving cB MA in the treatment of cartilaginous lesions. Bone consolidation and time to bone union was improved in patients receiving cB MA. Enhanced healingrates, improved quality of the repair surface on ultrasound and magnetic resonance imaging, and a decreased risk of re-rupture was demonstrated in patients receiving cB MA as an adjunctive treatment in tendon repair. CONCLUSION The current literature demonstrates the potential benefits of utilizing c BMA for the repair of cartilaginous lesions, bony defects, and tendon injuries in the clinical setting. This study also demonstrates discrepancies between the literature with regards to various methods of centrifugation, variable cell count concentrations, and lack of standardized outcome measures. Future studies should attempt to examine the integral factors necessary for tissue regeneration and renewal including stem cells, growth factors and a biologic scaffold. | Arianna L Gianakos Li Sun Jay N Patel Donald M Adams Frank A Liporace | 2017 | World Journal of Orthopedics2017，8，6： | 5 |
| 11 | 银鲫IgM的纯化及其单克隆抗体的制备显示文摘Aeromonas hydrophila septicemia was a serious infectious disease occurred in China.The majority harmed fish was crucian carp(Carassius auratus gibelio).It was reported that immune prevention was the effect measure to prevent this disease using A.hydrophila bacterin.So it is necessary to develop monoclonal antibody(McAb) against the IgM from Crucian carp.In this study,the purification of serum immunoglobulin from Crucian carp was carried out by using Goat IgG Agarose.The concentration of purified IgM was 2.5 mg·mL-1.By using hybridoma-monoclonal antibody technology,hybridoma cell line secreted McAb against the IgM from crucian carp had been established and the characteristics of mab8 had been described.In isotyping analysis,the results showed that it belong to IgG1,it was able to recognize the heavy chain of the IgM on western blot,and did not has any cross reaction with the Ig from 19 different fish species including common carp(Cyprinus carpio),bighead carp(Aristichthys nobilis),grass carp(Ctenopharhyngodon idella) and bream(Abramis brama) etc.The results demonstrated that McAb was highly specific and sensitive to the Ig of Crucian carp,and had the great potential to be used for analyzing the structure of crucian carp IgM,monitoring the immunity level of cultured Crucian carp and pathogen diagnosis. | 沈锦玉 Thompson K D Adams A Galina Jeney 钱冬 沈智华 | 2006 | 水产学报2006，30，3： | 4 |
| 12 | 饲料对动物胃肠道完整性的影响显示文摘所有活动物均需定期采食饲料,饲料是一种复杂的物质,含有成千上万种不同分子及多种相关微生物。因此,饲料与其摄食者之间有明显互作,从而影响基于营养的动物健康(NbH)。饲料与动物的互作至少表现在3方面:维持胃肠完整性、支持免疫系统、调控氧化应激和疾病。 | Clifford A Adams(著) 武书庚(编译) 齐广海(审校) 李海涛(审校) | 2009 | 饲料与畜牧(新饲料)2009，，1： | 4 |
| 13 | Acute effects of rotavirus and malnutrition on intestinal barrier function in neonatal piglets显示文摘AIM: To investigate the effect of protein-energy malnutrition on intestinal barrier function during rotavirus enteritis in a piglet model.METHODS: Newborn piglets were allotted at day 4 of age to the following treatments:(1) full-strength formula(FSF)/noninfected;(2) FSF/rotavirus infected;(3) half-strength formula(HSF)/noninfected;or(4) HSF/rotavirus infected.After one day of adjustment to the feeding rates,pigs were infected with rotavirus and acute effects on growth and diarrhea were monitored for 3 d and jejunal samples were collected for Ussingchamber analyses.RESULTS: Piglets that were malnourished or infected had lower body weights on days 2 and 3 post-infection(P < 0.05).Three days post-infection,marked diarrhea and weight loss were accompanied by sharp reductions in villus height(59%) and lactase activity(91%) and increased crypt depth(21%) in infected compared with non-infected pigs(P < 0.05).Malnutrition also increased crypt depth(21%) compared to full-fed piglets.Villus:crypt ratio was reduced(67%) with viral infection.There was a trend for reduction in transepithelial electrical resistance with rotavirus infection and malnutrition(P = 0.1).3H-mannitol flux was significantly increased(50%;P < 0.001) in rotavirus-infected piglets compared to non-infected piglets,but there was no effect of nutritional status.Furthermore,rotavirus infection reduced localization of the tight junction protein,occludin,in the cell membrane and increased localization in the cytosol.CONCLUSION: Overall,malnutrition had no additive effects to rotavirus infection on intestinal barrier function at day 3 post-infection in a neonatal piglet model. | Sheila K Jacobi Adam J Moeser Anthony T Blikslager J Marc Rhoads Benjamin A Corl Robert J Harrell Jack Odle | 2013 | World Journal of Gastroenterology2013，19，31： | 4 |
| 14 | 利钠肽受体2的缺乏促进小鼠二叶主动脉瓣、主动脉瓣疾病、左心室功能不全以及升主动脉扩张显示文摘主动脉瓣疾病是无有效药物治疗的细胞介导的病变过程。C型利钠肽(C-type natriuretic peptide,CNP)抑制瓣膜间质细胞(valve interstitial cells,VIC)的肌纤维形成和成骨过程,并且在出现主动脉瓣狭窄时水平下调。然而,CNP信号是否调节体内主动脉瓣的健康状态尚不清楚。该研究旨在确定小鼠CNP信号通路的缺失是否导致主动脉瓣疾病加速发展。 | 刘青 叶鹏 Blaser MC Wei K Adams RL Zhou YQ Caruso LL Mirzaei Z Lam A Tam RK Zhang H Heximer SP Henkelman M Simmons CA | 2018 | 中华高血压杂志2018，26，1： | 3 |
| 15 | Barrett’s metaplasia glands are clonal, contain multiple stem cells and share a common squamous progenitor显示文摘 | Anna M Nicholson Trevor A Graham Ashley Simpson Adam Humphries Nicola Burch Manuel Rodriguez-Justo Marco Novelli Rebecca Harrison Nicholas A Wright Stuart A C McDonald Janusz A Jankowski | 2012 | Gut2012，，10： | 3 |
| 16 | Reproducibility of thrombus volume quantification in multicenter computed tomography pulmonary angiography studies显示文摘AIM To evaluate reproducibility of pulmonary embolism(PE) clot volume quantification using computed tomography pulmonary angiogram(CTPA) in a multicenter setting.METHODS This study was performed using anonymized data in conformance with HIPAA and IRB Regulations(March 2015-November 2016). Anonymized CTPA data was acquired from 23 scanners from 18 imaging centers using each site's standard PE protocol. Two independent analysts measured PE volumes using a semi-automated region-growing algorithm on an FDA-approved image analysis platform. Total thrombus volume(TTV) was calculated per patient as the primary endpoint. Secondary endpoints were individual thrombus volume(ITV), Qanadli score and modified Qanadli score per patient. Inter-and intra-observer reproducibility were assessed using intra-class correlation coefficient(ICC) and BlandAltman analysis. RESULTS Analyst 1 found 72 emboli in the 23 patients with a mean number of emboli of 3.13 per patient with a range of 0-11 emboli per patient. The clot volumes ranged from 0.0041-47.34 cm3(mean +/-SD, 5.93 +/-10.15 cm3). On the second read, analyst 1 found the same number and distribution of emboli with a range of volumes for read 2 from 0.0041 – 45.52 cm3(mean +/-SD, 5.42 +/-9.53 cm3). Analyst 2 found 73 emboli in the 23 patients with a mean number of emboli of 3.17 per patient with a range of 0-11 emboli per patient. The clot volumes ranged from 0.00459-46.29 cm3(mean +/-SD, 5.91 +/-10.06 cm3). Inter-and intraobserver variability measurements indicated excellent reproducibility of the semi-automated method for quantifying PE volume burden. ICC for all endpoints was greater than 0.95 for inter-and intra-observer analysis. Bland-Altman analysis indicated no significant biases.CONCLUSION Semi-automated region growing algorithm for quantifying PE is reproducible using data from multiple scanners and is a suitable method for image analysis in multicenter clinical trials. | Audrey E Kaufman Alison N Pruzan Ching Hsu Sarayu Ramachandran Adam Jacobi Indravadan Patel Lee Schwocho Michele F Mercuri Zahi A Fayad Venkatesh Mani | 2018 | World Journal of Radiology2018，10，10： | 3 |
| 17 | Magnitude of modulation of gene expression in aneuploid maize depends on the extent of genomic imbalance显示文摘Aneuploidy has profound effects on an organism,typically more so than polyploidy,and the basis of this contrast is not fully understood.A dosage series of the maize long arm of chromosome 1(1L)was used to compa re relative global gene expression in diffe rent types and degrees of aneuploidy to gain insights into how the magnitude of genomic imbalance as well as hypoploidy affects global gene expression.While previously available methods require a selective examination of specific genes,RNA sequencing provides a whole-genome view of gene expression in aneuploids.Most studies of global aneuploidy effects have concentrated on individual types of aneuploids because multiple dose aneuploidies of the same genomic region are difficult to produce in most model genetic organisms.The genetic toolkit of maize allows the examination of multiple ploidies and 1-4 doses of chromosome arms.Thus,a detailed examination of expression changes both on the varied chromosome arms and elsewhere in the genome is possible,in both hypoploids and hyperploids,compared with euploid controls.Previous studies observed the inverse trans effect,in which genes not varied in DNA dosage were expressed in a negative relationship to the varied chromosomal region.This response was also the major type of changes found globally in this study.Many genes varied in dosage showed proportional expression changes,though some were seen to be partly or fully dosage compensated.It was also found that the effects of aneuploidy were progressive,with more severe aneuploids producing effects of greater magnitude. | Adam F·Johnson Jie Hou Hua Yang Xiaowen Shi Chen Chen Md Soliman Islam Tieming Ji Jianlin Cheng James A·Birchler | 2020 | Journal of Genetics and Genomics2020，47，2： | 3 |
| 18 | 肝细胞肝癌和肝硬化组织中的卵圆细胞:电镜与免疫电镜研究显示文摘目的 从电镜和免疫电镜水平 ,探讨人类肝癌和肝硬化肝组织存在如动物肝癌形成实验中的卵圆细胞的可能性。方法 对 10例人肝细胞肝癌的手术标本及其癌旁肝硬化组织作了电镜超微结构观察 ,并用胆管上皮分化抗体CK7和肝细胞分化抗体白蛋白对以上组织作超薄切片免疫电镜标记。结果 电镜下 ,所有肝癌(10例 )和肝硬化 (10例 )组织均可找到与我们在人肝母细胞瘤、胆道闭锁肝中所见的三型小上皮细胞。这类细胞卵圆形 ,位于肝癌肿瘤边缘和增生的胆小管内 ,在肝硬化组织则位于汇管区及再生的肝结节内。免疫电镜下 ,三型卵圆细胞均表达CK7和白蛋白 ,但Ⅰ型和Ⅱ型表达CK7多些 ,Ⅲ型表达白蛋白多些。结论 人肝细胞肝癌和肝硬化肝组织中存在卵圆细胞 ,其形态和免疫表型特点与动物致癌模型肝中卵圆细胞一致。 | 肖家诚 金晓龙 曾晓颖 Ruck P Adam A Kaiserling E | 2004 | 检验医学2004，19，1： | 3 |
| 19 | Repeat endoscopic retrograde cholangiopancreaticography after failed initial precut sphincterotomy for biliary cannulation显示文摘AIM: To investigate the outcome of repeating endoscopic retrograde cholangiopancreaticography(ERCP) after initially failed precut sphincterotomy to achieve biliary cannulation.METHODS: In this retrospective study, consecutive ERCPs performed between January 2009 and September 2012 were included. Data from our endoscopy and radiology reporting databases were analysed for use of precut sphincterotomy, biliary access rate, repeat ERCP rate and complications. Patients with initially failed precut sphincterotomy were identified.RESULTS: From 1839 consecutive ERCPs, 187(10%) patients underwent a precut sphincterotomy during the initial ERCP in attempts to cannulate a native papilla. The initial precut was successful in 79/187(42%). ERCP was repeated in 89/108(82%) of patients with failed initial precut sphincterotomy after a median interval of 4 d, leading to successful biliary cannulation in 69/89(78%). In 5 patients a third ERCP was attempted(successful in 4 cases). Overall, repeat ERCP after failed precut at the index ERCP was successful in 73/89 patients(82%). Complications after precut-sphincterotomy were observed in 32/187(17%) patients including pancreatitis(13%), retroperitoneal perforations(1%), biliary sepsis(0.5%) and haemorrhage(3%).CONCLUSION: The high success rate of biliary cannulation in a second attempt ERCP justifies repeating ERCP within 2-7 d after unsuccessful precut sphincterotomy before more invasive approaches should be considered. | Michael Pavlides Ashley Barnabas Nilesh Fernandopulle Adam A Bailey Jane Collier Jane Phillips-Hughes Anthony Ellis Roger Chapman Barbara Braden | 2014 | World Journal of Gastroenterology2014，20，36： | 3 |
| 20 | Effect of varying computed tomography acquisition and reconstruction parameters on semi-automated clot volume quantification显示文摘AIM To examine effects of computed tomography(CT)image acquisition/reconstruction parameters on clot volume quantification in vitro for research method validation purposes.METHODS This study was performed in conformance with HIPAA and IRB Regulations(March 2015-November 2016).A ten blood clot phantom was designed and scanned on a dual-energy CT scanner(SOMATOM Force,Siemens Healthcare Gm BH,Erlangen,Germany)with varying pitch,iterative reconstruction,energy level and slicethickness.A range of clot and tube sizes were used in an attempt to replicate in vivo emboli found within central and segmental branches of the pulmonary arteries in patients with pulmonary emboli.Clot volume was the measured parameter and was analyzed by a single image analyst using a semi-automated region growing algorithm implemented in the FDA-approved Siemens syngo.via image analysis platform.Mixed model analysis was performed on the data.RESULTS On the acquisition side,the continuous factor of energy showed no statistically significant effect on absolute clot volume quantification(P=0.9898).On the other hand,when considering the fixed factor of pitch,there were statistically significant differences in clot volume quantification(P<0.0001).On the reconstruction side,with the continuous factor of reconstruction slice thickness no statistically significant effect on absolute clot volume quantification was demonstrated(P=0.4500).Also on the reconstruction side,with the fixed factor of using iterative reconstructions there was also no statistically significant effect on absolute clot volume quantification(P=0.3011).In addition,there was excellent R^2 correlation between the scale-measured mass of the clots both with respect to the CT measured volumes and with respect to volumes measure by the water displacement method.CONCLUSION Aside from varying pitch,changing CT acquisition parameters and using iterative reconstructions had no significant impact on clot volume quantification with a semi-automated region growing algorithm. | Audrey E Kaufman Alison N Pruzan Ching Hsu Sarayu Ramachandran Adam Jacobi Zahi A Fayad Venkatesh Mani | 2018 | World Journal of Radiology2018，10，3： | 3 |
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