Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society最新文献

{"title":"Role of toll-like receptor 4 in mediating multiorgan dysfunction in mice with acetaminophen induced acute liver failure.","authors":"Naina Shah,&nbsp;Montserrat Montes de Oca,&nbsp;Maria Jover-Cobos,&nbsp;Ken-Ichi Tanamoto,&nbsp;Masashi Muroi,&nbsp;Kei-Ichi Sugiyama,&nbsp;Nathan A Davies,&nbsp;Rajeshwar P Mookerjee,&nbsp;Dipok Kumar Dhar,&nbsp;Rajiv Jalan","doi":"10.1002/lt.23655","DOIUrl":"https://doi.org/10.1002/lt.23655","url":null,"abstract":"<p><p>Strategies for the prevention of multiorgan dysfunction (MOD) in acetaminophen (APAP)-induced acute liver failure (ALF) are an unmet need. Our study tested the hypothesis that sterile inflammation induced by APAP in a mouse model would activate toll-like receptor 4 (TLR4) in the liver and extrahepatic organs and lead to the progression of ALF and MOD and that the administration of the novel TLR4 antagonist STM28 (a peptide formed of 17 amino-acids) would prevent liver injury and associated MOD. ALF and, subsequently, MOD were induced in TLR4-knockout (KO) mice (B6.B10ScN-Tlr4 (lpsdel) /JthJ) and wild-type (WT) mice (C57BL/6) with APAP (500 mg/kg). A second set of experiments was conducted to evaluate the effects of a pretreatment with a novel TLR4 antagonist, STM28, on APAP-induced MOD in CD1 mice. Animals were sacrificed at the coma stage, and plasma, peripheral blood cells, liver, kidneys, and brain were collected. Biochemistry values and cytokines were measured. Liver and kidneys were studied histologically and were stained for TLR4 and activated Kupffer cells, and the expression of nuclear factor kappa B-p65 was quantified with western blotting. Brain water was measured in the frontal cortex. After APAP administration, TLR4-KO (NFkBp65) mice were relatively protected from liver necrosis and end-organ dysfunction and had significantly better survival than WT controls (P < 0.01). STM28 attenuated liver injury and necrosis, reduced creatinine levels, and delayed the time to a coma significantly. The increases in cytokines in the plasma and liver, including TLR4 expression and the activation of Kupffer cells, after APAP administration were reduced significantly in the STM28-treated animals. The increased number of circulating myeloid cells was reduced significantly after STM28 treatment. In conclusion, these data provide evidence for an important role of the TLR4 antagonist in the prevention of the progression of APAP-induced ALF and MOD.</p>","PeriodicalId":520704,"journal":{"name":"Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society","volume":" ","pages":"751-61"},"PeriodicalIF":4.6,"publicationDate":"2013-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/lt.23655","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40244900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term management of the successful adult liver transplant: 2012 practice guideline by the American Association for the Study of Liver Diseases and the American Society of Transplantation.","authors":"Michael R Lucey,&nbsp;Norah Terrault,&nbsp;Lolu Ojo,&nbsp;J Eileen Hay,&nbsp;James Neuberger,&nbsp;Emily Blumberg,&nbsp;Lewis W Teperman","doi":"10.1002/lt.23566","DOIUrl":"https://doi.org/10.1002/lt.23566","url":null,"abstract":"Michael R. Lucey, Norah Terrault, Lolu Ojo, J. Eileen Hay, James Neuberger, Emily Blumberg, and Lewis W. Teperman Division of Gastroenterology and Hepatology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI; Gastroenterology Division, Department of Medicine, University of California San Francisco, San Francisco, CA; Division of Nephrology, Department of Medicine, University of Michigan, Ann Arbor, MI; Mayo Clinic, Rochester, MN; Liver Unit, Queen Elizabeth Hospital, Birmingham, United Kingdom; Division of Infectious Diseases, University of Pennsylvania School of Medicine, Philadelphia, PA; and Department of Surgery, NYU Transplant Associates, New York, NY","PeriodicalId":520704,"journal":{"name":"Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society","volume":" ","pages":"3-26"},"PeriodicalIF":4.6,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/lt.23566","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40204411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early Development of nanoprobes for diagnostic imaging.","authors":"James D Perkins","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Fluorescence is increasingly used for in vivo imaging and has provided remarkable results. Yet this technique presents several limitations, especially due to tissue autofluorescence under external illumination and weak tissue penetration of low wavelength excitation light. We have developed an alternative optical imaging technique by using persistent luminescent nanoparticles suitable for small animal imaging. These nanoparticles can be excited before injection, and their in vivo distribution can be followed in realtime for more than 1 h without the need for any external illumination source. Chemical modification of the nanoparticles' surface led to lung or liver targeting or to long-lasting blood circulation. Tumor mass could also be identified on a mouse model.</p>","PeriodicalId":520704,"journal":{"name":"Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society","volume":" ","pages":"1604"},"PeriodicalIF":4.6,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41059130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transplanted patients with combined hepatocellular-cholangiocarcinoma: now what?","authors":"James D Perkins","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":520704,"journal":{"name":"Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society","volume":" ","pages":"1465-6"},"PeriodicalIF":4.6,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41006096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exosomes?","authors":"James D Perkins","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":520704,"journal":{"name":"Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society","volume":" ","pages":"1466-7"},"PeriodicalIF":4.6,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41006097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}