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1Liver fat deposition and mitochondrial dysfunction in morbid obesity:An approach combining metabolomics with liver imaging and histology显示文摘AIM: To explore the usefulness of magnetic resonance imaging(MRI) and spectroscopy(MRS) for assessment of non-alcoholic fat liver disease(NAFLD) as compared with liver histological and metabolomics findings. METHODS: Patients undergoing bariatric surgery following procedures involved in laparoscopic sleeve gastrectomy were recruited as a model of obesityinduced NAFLD in an observational, prospective, singlesite, cross-sectional study with a pre-set duration of 1 year. Relevant data were obtained prospectively and surrogates for inflammation, oxidative stress and lipid and glucose metabolism were obtained through standard laboratory measurements. To provide reliable data from MRI and MRS, novel procedures were designed to limit sampling variability and other sources of error using a 1.5T Signa HDx scanner and protocols acquired from the 3D or 2D Fat SAT FIESTA prescription manager. We used our previously described 1H NMRbased metabolomics assays. Data were obtained immediately before surgery and after a 12-mo period including histology of the liver and measurement of metabolites. Values from 1H NMR spectra obtained after surgery were omitted due to technical limitations.RESULTS: MRI data showed excellent correlation with the concentration of liver triglycerides, other hepatic lipid components and the histological assessment, w h i c h e xc l u d e d t h e p r e s e n c e o f n o n-a l c o h o l i c steatohepatitis(NASH). MRI was sufficient to follow up NAFLD in obese patients undergoing bariatric surgery and data suggest usefulness in other clinical situations. The information provided by MRS replicated that obtained by MRI using the-CH3 peak(0.9 ppm), the-CH2- peak(1.3 ppm, mostly triglyceride) and the-CH=CH- peak(2.2 ppm). No patient depicted NASH. After surgery all patients significantly decreased their body weight and steatosis was virtually absent even in patients with previous severe disease. Improvement was also observed in the serum concentrations of selected variables. The most relevant findings using metabolomics indicate increased levels of triglyceride and monounsaturated fatty acids in severe steatosis but those results were accompanied by a significant depletion of diglycerides, polyunsaturated fatty acids, glucose-6-phosphate and the ATP/AMP ratio. Combined data indicated the coordinated action on mitochondrial fat oxidation and glucose transport activity and may support the consideration of NAFLD as a likely mitochondrial disease. This concept may helpto explain the dissociation between excess lipid storage in adipose tissue and NAFLD and may direct the search for plasma biomarkers and novel therapeutic strategies. A limitation of our study is that data were obtained in a relatively low number of patients.CONCLUSION: MRI is sufficient to stage NAFLD in obese patients and to assess the improvement after bariatric surgery. Other data were superfluous for this purpose.Nahum Calvo Raúl Beltrán-Debón Esther Rodríguez-Gallego Anna Hernández-Aguilera Maria Guirro Roger Mariné-Casadó Lidón Millá Josep M Alegret Fàtima Sabench Daniel del Castillo María Vinaixa Miguelàngel Rodríguez Xavier Correig Roberto García-álvarez Javier A Menendez Jordi Camps Jorge Joven 2015World Journal of Gastroenterology2015,21,24:2
2卒中介入治疗培训指南:国际多学会共识文件显示文摘1背景 缺血性卒中是全球人口死亡和残疾的首要原因。很多急性大血管闭塞(emergent large vesselocclusion,ELVO)患者都会遗留长期残疾。事实上,这些颅内大动脉闭塞经常会导致大面积脑损伤,进而造成患者死亡或严重致残。Lavine SD Cockroft K Hoh B Bambakidis N Khalessi AA Woo H Riina H Siddiqui A Hirsch JA Chong W Rice H Wenderoth J Mitchell P Coulthard A Signh TJ Phatorous C Khangure M Klurfan P ter Brugge K Iancu D Gunnarsson T Pongpech S Rodesch G Soderman M Taylor A Krings T Orbach D Picard L Suh DC Zheng HQ Jansen O Muto M Szikora I Pierot L Brouwer P Gralla J Renowden S Andersson T Fiehler J Turjman F White P Januel AC Spelle L Kulcsar Z Chapot R Biondi A Dima S Taschner C Szajner M Krajina A Sakai N Matsumaru Y Yoshknura S Ezura M Fujinaka T Iihara K Ishii A Higashi T Hirohata M Hyodo A Ito Y Kawanishi M Kiyosue H Kobayashi E Kobayashi S Kuwayama N Matsumoto Y Miyachi S Murayama Y Nagata I Nakahara I Nemoto S Niimi Y Oishi H Satomi J Satow T Sugiu K Tanaka M Terada T Yamagami H Diaz O Lylyk P Jayaraman MV Patsalides A Gandhi CD Lee SK Abruzzo T Albani B Ansari SA Arthur AS Baxter BW Bulsara KR Chen M Almandoz JE Fraser JF Heck DV Hetts SW Hussain MS Klucznik RP Leslie-Mawzi TM Mack WJ McTaggart RA Meyers PM Mocco J Prestigiacomo CA Pride GL Rasmussen PA Starke RM Sunenshine PJ Tarr RW Frei DF Pabo M Nogueira RG Zaidat OO Jovin T Linfante I Yavagal D Liebeskind D Novakovic R Pongpech S 许岩 孙瑞 郭芮兵 2017国际脑血管病杂志2017,25,5:2
3Diffusion tensor MRI of the human kidney显示文摘Ries M Jones RA Basseau F 2001J Magn Reson Imaging2001,14,1:1
4Contribution of endogenous carbon monoxide to regulation of diameter in resistance vessels显示文摘 Jobonson RA Zhang F 1999Am J Physiol1999,276,42:1
5Anti-CD18 attenuates deleterious effects of cardio-pulmonary bypass and hypothermic circulatory arrest in piglets显示文摘Aoki M Jonas RA Nomura F 1995J Card Surg1995,10,:1
6Changes in limb dynamics during the practice of rapid arm movements 显示文摘Schneider K Zernicke R F Schmidt RA 1989J Biomech1989,22,89:1
7Human osteogenic protein-1 induces osteogenic differentiation of adipose-derived stem cells harvested from mice显示文摘A1-Salleeh F Beatty MW Reinhardt RA 2008Arch Oral Biol2008,53,10:1
8Assessment of quality of lifein patients undergoing orthognathic surgery 显示文摘Bock JJ Odemar F Fuhrmann RA 2009J Orofac Orthop2009,70,5:1
9Nutritional status in patients with chronic respiratory failure receiving home mechanical ventilation:impact on survival显示文摘Hitzl AP Jorres RA Heinemann F 2010Clin Nutr2010,29,1:1
10Flavonoids and isoflavonoids from Zollernia paraensis显示文摘Ferrari F Botta B de Lima RA 1983Phytochemistry1983,22,7:1
11Bevacizttmab with or without erlotinib in metastatic renal cell carcinoma(RCC)显示文摘Bukowskl RM Kabbinavar F Figlin RA 2006J Clin Oncol2006,24,18:1
12Heat stress-induced H2O2 is required for effective expression of heat shock genes in Arabidopsis显示文摘Volkov RA Panchuk II Mullineaux PM Sch(o)effl F 0,,4:1
13Enzyme-ampli- fied lanthanide luminescence for enzyme detection in bioana- lytical assays显示文摘Evangelista RA Poliak A Templeton E F 1991Anal Biochem1991,197,:1
14Diffusion tensor M RI of the human kidney显示文摘Ries M Jones RA Basseau F 2001Magn Reson Imaging2001,14,:1
15Inhibition of Janus kinase3 and calcineurin-dependent signaling pathways synergistically prolongs the survival of rat heart allografts 显示文摘Behbod F Erwin-Cohen RA Wang ME 2001J Immunol2001,166,6:1
16Electrode and electrolyte impedance in the detection of bacterial growth显示文摘Hause LL Komorowski RA Gayon F 1981IEEE Transactions on Biomedical Engineering1981,28,5:1
17Expandable metallic prostheses for malignant obstructions of gastric outlet and proximal small bowel 显示文摘Nevitt AW Vida F Kozarek RA 1998Gastrointest Endosc1998,47,:1
18Granular cell tumor of the breast mimicking carcinoma in pregnancy显示文摘Kommoss F Mercer L Schmidt RA 1989Obstet Gynecol1989,73,:1
19Renal lymphangioma显示文摘Castano JC Vélez A Raül Flórez F 2005Arch Esp Urol2005,58,3:1
20Viral metagenomics显示文摘EDWARDS RA ROHWER F 2005Nat Rev Microbiol2005,3,6:1
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