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| 1 | A chronic ulcerative colitis model in rats显示文摘INTRODUCTIONIn recent years,there have been many reports aboutanimal model to investigate drugs for inflammatorybowel diseases (IBD).The experimental animalmodel often used is acetic acid-induced damage ofcolonic muscosa.In the present study,this animalmodel was investigated by administering variousconcentrations of TNBS. | Zheng L Gao ZQ Wang SX | 2000 | World Journal of Gastroenterology2000，6，1： | 37 |
| 2 | Evaluation of the suitability of a partially defatted black soldier fly (Hermetia illucens L.) larvae meal as ingredient for rainbow trout (Oncorhynchus mykiss Walbaum) diets显示文摘Background: Two trials were performed to evaluate a partially defatted Hermetia illucens(HI) larvae meal as potential feed ingredient in rainbow trout(Oncorhynchus mykiss Walbaum) diets. In the first trial, 360 trout(178.9 ± 9.8 g of mean initial body weight) were randomly divided into three experimental groups(4 tanks/treatment, 30 fish/tank). The fish were fed for 78 days with isonitrogenous, isolipidic and isoenergetic diets containing increasing levels of HI, on as fed basis: 0%(HI0, control diet), 25%(HI25) and 50%(HI50) of fish meal substitution, corresponding to dietary inclusion levels of 0, 20% and 40%. In the second trial, 36 trout(4 tanks/treatment, 3 fish/tank) were used to evaluate the in vivo apparent digestibility coefficients(ADC) of the same diets used in the first trial.Results: Survival, growth performance, condition factor, somatic indexes, and dorsal fillet physical quality parameters were not affected by diet. The highest dietary inclusion of HI larvae meal increased dry matter and ether extract contents of trout dorsal fillet. The use of HI larvae meal induced a decrease of valuable polyunsaturated fatty acids(PUFA) even if differences were only reported at the highest level of HI inclusion. The insect meal worsened the lipids health indexes of the same muscle. Dietary inclusion of insect meal did not alter the villus height of the fish. No differences were found among treatments in relation to ADC of ether extract and gross energy, while ADC of dry matter and crude protein were higher in HI25 if compared to HI50.Conclusions: The obtained results showed that a partially defatted HI larvae meal can be used as feed ingredient in trout diets up to 40% of inclusion level without impacting survival, growth performance, condition factor, somatic indexes, dorsal fillet physical quality parameters, and intestinal morphology of the fish. However, further investigations on specific feeding strategies and diet formulations are needed to limit the observed negative effects of the insect meal on the FA composition of dorsal muscle. | M. Renna A. Schiavone F. Gai S. Dabbou C. Lussiana V. Malfatto M. Prearo M. T. Capucchio I. Biasato E. Biasibetti M. De Marco A. Brugiapaglia I. Zoccarato L. Gasco | 2017 | Journal of Animal Science and Biotechnology2017，8，4： | 32 |
| 3 | Role of regulatory T cell in the pathogenesis of inflammatorybowel disease显示文摘Regulatory T(Treg) cells play key roles in various immune responses. For example, Treg cells contribute to the complex pathogenesis of inflammatory bowel disease(IBD), which includes Crohn's disease and ulcerative colitis during onset or development of that disease. Many animal models of IBD have been used to investigate factors such as pathogenic cytokines, pathogenic bacteria, and T-cell functions, including those of Treg cells. In addition, analyses of patients with IBD facilitate our understanding of the precise mechanism of IBD. This review article focuses on the role of Treg cells and outlines the pathogenesis and therapeutic strategies of IBD based on previous reports. | akiko yamada rieko arakaki masako saito takaaki tsunematsu yasusei kudo naozumi ishimaru | 2016 | World Journal of Gastroenterology2016，22，7： | 24 |
| 4 | Study of heteroserum-induced rat liver fibrosis model and its mechanism显示文摘StudyofheteroseruminducedratliverfibrosismodelanditsmechanismHUANGZhiGang,ZHAIWeiRong,ZHANGYueEandZHANGXiuRongSubjecthea... | HUANG Zhi Gang, ZHAI Wei Rong, ZHANG Yue E and ZHANG Xiu Rong | 1998 | World Journal of Gastroenterology1998，4，3： | 22 |
| 5 | Quantification of angiogenesis by CT perfusion imaging in liver tumor of rabbit显示文摘BACKGROUND:Tumor angiogenesis is essential for primary and metastatic tumor growth.Computed tomography perfusion(CTP)is a new imaging method,made possible by the recent development of fast CT scanners and improved data analysis techniques,which allows measurement of the physiologic and hemodynamic properties of tissue vasculature.This study aimed to evaluate CTP in the quantification of angiogenesis and to assess the relationship between tissue perfusion parameters and microvascular density(MVD)and vascular endothelial growth factor(VEGF),attempting to detect the physiologic properties of angiogenesis.METHODS:Sixteen rabbits with VX2 liver tumors underwent multi-slice CT perfusion(MSCTP)on day 14 after tumor inoculation.CTP parameters included hepatic blood flow(HBF),hepatic blood volume(HBV),mean transit time(MTT),permeability of capillary vessel surface(PS),hepatic artery index(HAI),hepatic artery perfusion(HAP),and hepatic portal perfusion(HPP).The border of the tumor was stained with CD34 and VEGF immunohistochemical stains,and MVD was measured by anti-CD34.Then,CTP parameters were determined whether they were correlated with MVD and VEGF using Pearson’s correlation coefficient.RESULTS:The positive expression of MVD was different in the center and border of the tumor(P<0.01).There was a positive correlation between MVD and VEGF in the border(P<0.05).As more VEGF was expressed,the number of microvessels increased.Correlation analyses were also made between the perfusion parameters and MVD and VEGF in the border of the tumor.HBF,PS,HAI,and HAP values were positively correlated with MVD and VEGF(P<0.05),HPP was negatively correlated with MVD and VEGF(P<0.01),and HBV and MTT values were not correlated with MVD and VEGF(P>0.05).CONCLUSIONS:Significant correlations were found between perfusion parameters and MVD and VEGF.Therefore,MSCTP can be used to evaluate tumor angiogenesis in vivo. | Jiang, Hui-Jie Zhang, Zai-Ren Shen, Bao-Zhong Wan, Yong Guo, Hong Li, Jin-Ping | 2009 | Hepatobiliary & Pancreatic Diseases International2009，8，2： | 21 |
| 6 | Therapeutic effect of Zijin capsule in liver fibrosis in rats显示文摘TherapeuticefectofZijincapsuleinliverfibrosisinratsCAIDaYongZHAOGang,CHENJiaChun,YEGanMei,BINGFeiHongandFANBuWuSubjecth... | CAI Da Yong, ZHAO Gang, CHEN Jia Chun, YE Gan Mei, BING Fei Hong and FAN Bu Wu | 1998 | World Journal of Gastroenterology1998，4，3： | 20 |
| 7 | Can we further optimize therapeutic hypothermia for hypoxic-ischemic encephalopathy?显示文摘Perinatal hypoxic-ischemic encephalopathy is a leading cause of neonatal death and disability.Therapeutic hypothermia significantly reduces death and major disability associated with hypoxic-ischemic encephalopathy;however,many infants still experience lifelong disabilities to movement,sensation and cognition.Clinical guidelines,based on strong clinical and preclinical evidence,recommend therapeutic hypothermia should be started within 6 hours of birth and continued for a period of 72 hours,with a target brain temperature of 33.5 ±0.5℃ for infants with moderate to severe hypoxic-ischemic encephalopathy.The clinical guidelines also recommend that infants be re warmed at a rate of 0.5℃ per hour,but this is not based on strong evidence.There are no randomized controlled trials investigating the optimal rate of rewarming after therapeutic hypothermia for infants with hypoxic-ischemic encephalopathy.Preclinical studies of rewarming are conflicting and results were confounded by treatment with sub-optimal durations of hypothermia.In this review,we evaluate the evidence for the optimal start time,duration and depth of hypothermia,and whether the rate of rewarming after treatment affects brain injury and neurological outcomes. | Anthony Davies Guido Wassink Laura Bennet Alistair J.Gunn Joanne O.Davidson | 2019 | Neural Regeneration Research2019，14，10： | 20 |
| 8 | Novel magnetic compression technique for establishment of a canine model of tracheoesophageal fistula显示文摘BACKGROUND Clinically,tracheoesophageal fistula(TEF)is lack of effective surgical strategies.One reason is due to the lack of appropriate animal models of acquired TEF,which is usually complex and difficult.Recently,the magnetic compression technique has been applied for digestive tract anastomosis or vascular anastomosis in animals.In this study,an animal model of TEF in dogs was developed by using the magnetic compression technique,hoping to provide a new method for mimicking TEF.AIM To establish a TEF model in dogs by using the magnetic compression technique.METHODS Six male beagles were used as models with two Nd-Fe-B permanent magnets for TEF.The parent magnet and the daughter magnet were placed in the cervical esophagus and trachea,respectively.The anterior wall of the esophagus and the posterior wall of the trachea were compressed when the two magnets coupled.After 4-6 d,the necrotic tissue between the two magnets fell off and the parent and daughter magnets disengaged from the target location,leaving a fistula.Gastroscopy/bronchoscopy,upper gastrointestinal contrast study,and histological analysis were performed.RESULTS The establishment of the TEF model in all six beagles was successful.The average time of magnet placement was 4.33±1.11 min(range,3-7 min).Mean time for the magnets to disengage from the target location was 4.67±0.75 d(range,4-6 d).TEFs were observed by gastroscopy/bronchoscopy and esophageal angiography.The gross anatomical structure of the esophagus and the trachea was in good condition.There was no esophageal mucosa or pseudostratified ciliated columnar epithelium at the site of the fistula according to histological analysis.CONCLUSION It is simple,feasible,and minimally invasive to use the magnetic compression technique for the establishment of the TEF model in dogs. | Yi Gao Rong-Qian Wu Yi Lv Xiao-Peng Yan | 2019 | World Journal of Gastroenterology2019，25，30： | 20 |
| 9 | Nitrogen in global animal production and management options for improving nitrogen use efficiency显示文摘Animal production systems convert plant protein into animal protein. Depending on animal species, ration and management, between 5% and 45 % of the nitrogen (N) in plant protein is converted to and deposited in animal protein. The other 55%-95% is excreted via urine and feces, and can be used as nutrient source for plant (= often animal feed) production. The estimated global amount of N voided by animals ranges between 80 and 130 Tg N per year, and is as large as or larger than the global annual N fertilizer consumption. Cattle (60%), sheep (12%) and pigs (6%) have the largest share in animal manure N production.The conversion of plant N into animal N is on average more efficient in poultry and pork production than in dairy production, which is higher than in beef and sheep production. However, differences within a type of animal production system can be as large as differences between types of animal production systems, due to large effects of the genetic potential of animals, animal feed and management. The management of animals and animal feed, together with the genetic potential of the animals, are key factors to a high efficiency of conversion of plant protein into animal protein.The efficiency of the conversion of N from animal manure, following application to land, into plant protein ranges between 0 and 60%, while the estimated global mean is about 15%. The other 40%- 100% is lost to the wider environment via NH3 volatilization, denitrification, leaching and run-off in pastures or during storage and/or following application of the animal manure to land. On a global scale, only 40%-50% of the amount of N voided is collected in barns, stables and paddocks, and only half of this amount is recycled to crop land. The N losses from animal manure collected in barns, stables and paddocks depend on the animal manure management system. Relative large losses occur in confined animal feeding operations, as these often lack the land base to utilize the N from animal manure effectively.Losses will be relatively low when all manure are collected rapidly in water-tight and covered basins, and when they are subsequently applied to the land in proper amounts and at the proper time, and using the proper method (low-emission techniques).There is opportunity for improving the N conversion in animal production systems by improving the genetic production potential of the herd, the composition of the animal feed, and the management of the animal manure. Coupling of crop and animal production systems, at least at a regional scale, is one way to high N use efficiency in the whole system. Clustering of confined animal production systems with other intensive agricultural production systems on the basis of concepts from industrial ecology with manure processing is another possible way to improve Nuse efficiency. | Oene Oenema Seerp Tamminga | 2005 | Science China(Life Sciences)2005，48，z2： | 18 |
| 10 | MicroRNAs as diagnostic and therapeutic tools for Alzheimer's disease: advances and limitations显示文摘Alzheimer's disease(AD) is the most common age-related, progressive neurodegenerative disease. It is characterized by memory loss and cognitive decline and responsible for most cases of dementia in the elderly. Late-onset or sporadic AD accounts for > 95% of cases, with age at onset > 65 years. Currently there are no drugs or other therapeutic agents available to prevent or delay the progression of AD. The cellular and molecular changes occurring in the brains of individuals with AD include accumulation of β-amyloid peptide and hyperphosphorylated tau protein, decrease of acetylcholine neurotransmitter, inflammation, and oxidative stress. Aggregation of β-amyloid peptide in extracellular plaques and the hyperphosphorylated tau protein in intracellular neurofibrillary tangles are characteristic of AD. A major challenge is identifying molecular biomarkers of the early-stage AD in patients as most studies have been performed with blood or brain tissue samples(postmortem) at late-stage AD. Subjects with mild cognitive impairment almost always have the neuropathologic features of AD with about 50% of mild cognitive impairment patients progressing to AD. They could provide important information about AD pathomechanism and potentially also highlight minimally or noninvasive, easy-to-access biomarkers. MicroRNAs are dysregulated in AD, and may facilitate the early detection of the disease and potentially the continual monitoring of disease progression and allow therapeutic interventions to be evaluated. Four recent reviews have been published of microRNAs in AD, each of which identified areas of weakness or limitations in the reported studies. Importantly, studies in the last three years have shown considerable progress in overcoming some of these limitations and identifying specific microRNAs as biomarkers for AD and mild cognitive impairment. Further large-scale human studies are warranted with less disparity in the study populations, and using an appropriate method to validate the findings. | Bridget Martinez Philip V.Peplow | 2019 | Neural Regeneration Research2019，14，2： | 18 |
| 11 | 水产品中孔雀石绿、结晶紫及其代谢产物残留量的检测显示文摘 | 谢文 丁慧瑛 奚君阳 黄雷芳 | 2006 | 色谱2006，24，5： | 17 |
| 12 | Experimental models of non-alcoholic fatty liver disease in rats显示文摘Non-alcoholic fatty liver disease(NAFLD)is the most common chronic liver disease in the Western world,and it persists at a high prevalence.NAFLD is characterised by the accumulation of triglycerides in the liver and includes a spectrum of histopathological findings,ranging from simple fatty liver through non-alcoholic steatohepatitis(NASH)to fibrosis and ultimately cirrhosis,which may progress to hepatocellular carcinoma.The pathogenesis of NAFLD is closely related to the metabolic syndrome and insulin resistance.Understanding the pathophysiology and treatment of NAFLD in humans has currently been limited by the lack of satisfactory animal models.The ideal animal model for NAFLD should reflect all aspects of the intricate etiopathogenesis of human NAFLD and the typical histological findings of its different stages.Within the past several years,great emphasis has been placed on the development of an appropriate model for human NASH.This paper reviews the widely used experimental models of NAFLD in rats.We discuss nutritional,genetic and combined models of NAFLD and their pros and cons.The choice of a suitable animal model for this disease while respecting its limitations may help to improve the understanding of its complex pathogenesis and to discover appropriate therapeutic strategies.Considering the legislative,ethical,economical and health factors of NAFLD,animal models are essential tools for the research of this disease. | Otto Kucera Zuzana Cervinkova | 2014 | World Journal of Gastroenterology2014，20，26： | 16 |
| 13 | Functional CT for assessment of early vascular physiology in liver tumors显示文摘BACKGROUND:CT perfusion has been reported to have great advantages in detecting hepatic diseases.However, currently there are no studies showing the potential value of multi-slice CT perfusion with the deconvolution model method in diagnosing early hemodynamic changes caused by liver tumors.This study was undertaken to determine if early hemodynamic changes caused by liver tumors can be depicted with the perfusion imaging of multi-slice CT. METHODS:Ten New Zealand white rabbits before and after VX2 liver tumor inoculation served as the experimental animals.Ten normal rabbits served as controls.All underwent multi-slice CT perfusion for the measurement of hepatic blood flow(HBF),hepatic blood volume(HBV), mean transit time(MTT),permeability of capillary vessel surface(PS)and hepatic artery index(HAI). RESULTS:With the exception of MTT,which decreased significantly at the tumor periphery,HBF,HBV,PS and HAI increased significantly compared with the surrounding normal tissue.All these changes occurred at days 5-9 after tumor inoculation.Statistically significant changes in these values were detected with tumor growth. CONCLUSIONS:The hemodynamic changes in the liver caused by rabbit VX2 liver tumor can be detected after tumor inoculation,and functional CT can evaluate the physiological characteristics of early tumor angiogenesis. | Jiang, Hui-Jie Zhang, Zai-Ren Shen, Bao-Zhong Wan, Yong Guo, Hong Shu, Sheng-Jie | 2008 | Hepatobiliary & Pancreatic Diseases International2008，7，5： | 15 |
| 14 | From reflux esophagitis to Barrett's esophagus and esophageal adenocarcinoma显示文摘The occurrence of gastroesophageal reflux disease is common in the human population.Almost all cases of esophageal adenocarcinoma are derived from Barrett's esophagus,which is a complication of esophageal adenocarcinoma precancerous lesions.Chronic exposure of the esophagus to gastroduodenal intestinal fluid is an important determinant factor in the development of Barrett's esophagus.The replacement of normal squamous epithelium with specific columnar epithelium in the lower esophagus induced by the chronic exposure to gastroduodenal fluid could lead to intestinal metaplasia,which is closely associated with the development of esophageal adenocarcinoma.However,the exact mechanism of injury is not completely understood.Various animal models of the developmental mechanisms of disease,and theoretical and clinical effects of drug treatment have been widely used in research.Recently,animal models employed in studies on gastroesophageal reflux injury have allowed significant progress.The advantage of using animal models lies in the ability to accurately control the experimental conditions for better evaluation of results.In this article,various modeling methods are reviewed,with discussion of the major findings on the developmental mechanism of Barrett's esophagus,which should help to develop better prevention and treatment strategies for Barrett's esophagus. | Rui-Hua Wang | 2015 | World Journal of Gastroenterology2015，21，17： | 15 |
| 15 | Neurotherapeutic potential of erythropoietin after ischemic injury of the central nervous system显示文摘Erythropoietin (EPO) is one of the most successful biopharmaceuticals in history and is used for treating anemia of different origins. However, it became clear that EPO could also work in a neuroprotective, antiapoptotic, antioxidative, angiogenetic and neurotropic way. It causes stimulation of cells to delay cell apoptosis, especially in the central nervous system. In rodent models of focal cerebral ischemia, EPO showed an impressive reduction of infarct size by 30% and improvement of neurobehavioral outcome by nearly 40%. A large animal model dealing with ischemia and reperfusion of the spinal cord showed that EPO could reduce the risk of spinal cord injury significantly. In addition, some clinical studies tested whether EPO works in real live clinical settings. One of the most promising studies showed the innocuousness and improvements in follow-up, outcome scales and in infarct size, of EPO-use in humans suffering from ischemic stroke. Another study ended unfortunately in a negative outcome and an increased overall death rate in the EPO group. The most possible reason was the involvement of patients undergoing simultaneously systemic thrombolysis with recombinant tissue plasminogen activator. An experimental study on rats demonstrated that administration of EPO might exacerbate tissue plasminogen activator-induced brain hemorrhage without reducing the ischemic brain damage. This case shows clearly how useful animal models can be to check negative side effects of a treatment before going into clinical trials. Other groups looked in human trials at the effects of EPO on the outcome after ischemic stroke, relation to circulating endothelial progerdtor cells, aneurysmal subarachnoid hemorrhage, traumatic brain injury, hemoglobin transfusion thresholds and elective first-time coronary artery bypass surgery. Most of the results were pos-让ive, but are based mostly on small group sizes. However, some of the most neglected facts when focusing on experimental setups of ischemia of the central nervous system are issues like age and comorbidities. It might be extremely worthy to consider these points for future projects, because EPO might influence all these factors. | Florian Simon Nicolaos Floros Wiebke Ibing Hubert Schelzig Artis Knapsis | 2019 | Neural Regeneration Research2019，14，8： | 15 |
| 16 | Mesenchymal stem cells in the treatment of inflammatory and autoimmune diseases in experimental animal models显示文摘Multipotent mesenchymal stromal cells [also known as mesenchymal stem cells(MSCs)] are currently being studied as a cell-based treatment for inflammatory disorders. Experimental animal models of human immune-mediated diseases have been instrumental in establishing their immunosuppressive properties. In this review, we summarize recent studies examining the effectiveness of MSCs as immunotherapy in several widely-studied animal models, including type 1 diabetes, experimental autoimmune arthritis, experimental autoimmune encephalomyelitis, inflammatory bowel disease, graft-vs-host disease, and systemic lupus erythematosus. In addition, we discuss mechanisms identified by which MSCs mediate immune suppression in specific disease models, and potential sources of functional variability of MSCs between studies. | Matthew W Klinker Cheng-Hong Wei | 2015 | World Journal of Stem Cells2015，7，3： | 14 |
| 17 | Animal models of atherosclerosis显示文摘In this mini-review several commonly used animal models of atherosclerosis have been discussed.Among them,emphasis has been made on mice,rabbits,pigs and non-human primates.Although these animal models have played a significant role in our understanding of induction of atherosclerotic lesions,we still lack a reliable animal model for regression of the disease.Researchers have reported several genetically modified and transgenic animal models that replicate human atherosclerosis,however each of current animal models have some limitations.Among these animal models,the apolipoprotein(apo) E-knockout(KO)mice have been used extensively because they develop spontaneous atherosclerosis.Furthermore,atherosclerotic lesions developed in this model depending on experimental design may resemble humans' stable and unstable atherosclerotic lesions.This mouse model of hypercholesterolemia and atherosclerosis has been also used to investigate the impact of oxidative stress and inflammation on atherogenesis.Low density lipoprotein(LDL)-r-KO mice are a model of human familial hypercholesterolemia.However,unlike apo E-KO mice,the LDL-r-KO mice do not develop spontaneous atherosclerosis.Both apo E-KO and LDL-r-KO mice have been employed to generate other relevant mouse models of cardiovascular disease through breeding strategies.In addition to mice,rabbits have been used extensively particularly to understand the mechanisms of cholesterol-induced atherosclerosis.The present review paper details the characteristics of animal models that are used in atherosclerosis research. | Fatemeh Ramezani Kapourchali Gangadaran Surendiran Li Chen Elisabeth Uitz Babak Bahadori Mohammed H Moghadasian | 2014 | World Journal of Clinical Cases2014，2，5： | 14 |
| 18 | Protective effects of cyclosporine A on T-cell dependent ConA-induced liver injury in Kunming mice显示文摘INTRODUCTIONThe T-cell dependent specific liver injury in mice induced by concanavalin A(ConA) is a newly cstablished experimental liver injury model,which is considered more eligible for the study on pathophysiology of several human liver discascs,such as viral hepatitis and autommune hepatitis[1-9].T cell activation and several cytokines release had been proven to play a critical role in ConA -induced liver injury[10-19].Cyclosprine A(CsA),an effective inhibitor of activation of T lymphocytc,hes been used widely in clinical treatment,especially in autoimmune diseases and organ transplantation[20-25].In this study,we investigated the possible effect of CsA on ConA-induced liver injury in Kunning mice. | Xiu-Li Zhang Qi-Zhen Quan Zi-Qin Sun Yao-Jun Wang Xue-Liang Jiang Dong-Wang Wen-Bo Li Department of Gastroenterology,General Hospital of Jinan Military Command,Jinan 250031,Shandong Province,China | 2001 | World Journal of Gastroenterology2001，7，4： | 14 |
| 19 | Experimental study of bioartificial liver with cultured human liver cells显示文摘METHODSTheliversupportexperimentofEBLSSconsistingofaggregatesculturedhumanlivercels,holowfiberbioreactor,andcirculationunit... | WANG Ying Jie, LI Meng Dong, WANG Yu Ming, NIE Qing He and CHEN Guo Zheng | 1999 | World Journal of Gastroenterology1999，5，2： | 14 |
| 20 | Preliminary study on the production of transgenic mice harboring hepatitis B virus X gene显示文摘INTRODUCTIONDespiteoverwhelmingepidemiologicalevidencelinkingpersistentHepatitisBVirus(HBV)infectionandthedevelopmentofhepato... | ZHU Huan Zhang 1, CHENG Guo Xiang 2, CHEN Jian Qu 2, KUANG Shu Yuan 3, CHENG Yong 2, ZHANG Xin Li 1, Ll Hou Da 2, XU Shao Fu 2, SHI Jing Quan 1, QIAN Geng Sun 3 and GU Jian Ren 3 | 1998 | World Journal of Gastroenterology1998，4，6： | 14 |
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