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Prioritization for liver transplantation using the MELD score in Chile: Inequities generated by MELD exceptions.: A collaboration between the Chilean Liver Transplant Programs, the Public Health Institute and the National Transplant Coordinator.

Díaz LA, Norero B, Lara B, Robles C, Elgueta S, Humeres R, Poniachik J, Silva G, Wolff R, Innocenti F, Rojas JL, Zapata R, Hunter B, Álvarez S, Cancino A, Ibarra J, Rius M, González S, Calabrán L, Pérez RM.

Ann Hepatol. 2019 Mar - Apr;18(2):325-330. doi: 10.1016/j.aohep.2018.11.001. Epub 2019 Apr 12.


[Interferon Lambda 4 RS12979860 C>T polymorphism is not associated with liver fibrosis in patients with hepatitis C].

Brahm J, Urzúa A, Poniachik J, Cáceres DD, Carreño L, Venegas M.

Rev Med Chil. 2018 Jul;146(7):823-829. doi: 10.4067/s0034-98872018000700823. Spanish.


Hepatocellular carcinoma in Latin America: Diagnosis and treatment challenges.

Piñero F, Poniachik J, Ridruejo E, Silva M.

World J Gastroenterol. 2018 Oct 7;24(37):4224-4229. doi: 10.3748/wjg.v24.i37.4224.


Reversibility of Acquired Hepatocerebral Degeneration After Liver Transplantation.

Arenas A, Urzúa Á, Poniachik J, Carlos Diaz J, Castillo J, Saure A, Lembach H, Cancino A, Ibarra J, Besa C, Wolff R, Arrese M, Benítez C.

Liver Transpl. 2018 Aug;24(8):1133-1137. doi: 10.1002/lt.25211. No abstract available.


A changing etiologic scenario in liver transplantation for hepatocellular carcinoma in a multicenter cohort study from Latin America.

Piñero F, Costa P, Boteon YL, Duque SH, Marciano S, Anders M, Varón A, Zerega A, Poniachik J, Soza A, Padilla Machaca M, Menéndez J, Zapata R, Vilatoba M, Muñoz L, Maraschio M, Podestá LG, McCormack L, Gadano A, Boin ISFF, García P, Silva M; Latin American Liver Research, Education, Awareness Network (LALREAN).

Clin Res Hepatol Gastroenterol. 2018 Oct;42(5):443-452. doi: 10.1016/j.clinre.2018.03.014.


Gastrointestinal and hepatobiliary manifestations in patients with common variable immunodeficiency: In relation to three clinical cases.

Navea C, Echeverría M, Romero C, Osse E, Brahm J, Poniachik J.

Gastroenterol Hepatol. 2019 Feb;42(2):110-111. doi: 10.1016/j.gastrohep.2018.02.006. Epub 2018 Apr 22. English, Spanish. No abstract available.


[Fundal variceal bleeding treated with balloon occluded endoscopic inyection sclerotherapy. Report of two cases].

Costa DD, Montenegro C, Palavecino P, Lobos G, Cermenati T, Poniachik J.

Rev Med Chil. 2017 Oct;145(10):1336-1341. doi: 10.4067/S0034-98872017001001336. Spanish.


Results of Liver Transplantation for Hepatocellular Carcinoma in a Multicenter Latin American Cohort Study.

Piñero F, Costa P, Boteon YL, Duque SH, Marciano S, Anders M, Varón A, Zerega A, Poniachik J, Soza A, Machaca MP, Menéndez J, Zapata R, Vilatoba M, Muñoz L, Maraschio M, Fauda M, McCormack L, Gadano A, Boin IS, García JHP, Silva M.

Ann Hepatol. 2018 Mar 1;17(2):256-267. doi: 10.5604/01.3001.0010.8648.


Syphilis, unusual cause of abdominal pain.

Navea C, von Mühlenbrock C, Cabello N, Echeverría M, Jiménez A, Poniachik J.

Gastroenterol Hepatol. 2018 Nov;41(9):565-566. doi: 10.1016/j.gastrohep.2017.11.009. Epub 2018 Jan 6. English, Spanish. No abstract available.


Liver transplantation for hepatocellular carcinoma: evaluation of the alpha-fetoprotein model in a multicenter cohort from Latin America.

Piñero F, Tisi Baña M, de Ataide EC, Hoyos Duque S, Marciano S, Varón A, Anders M, Zerega A, Menéndez J, Zapata R, Muñoz L, Padilla Machaca M, Soza A, McCormack L, Poniachik J, Podestá LG, Gadano A, Boin IS, Duvoux C, Silva M; Latin American Liver Research, Education and Awareness Network (LALREAN).

Liver Int. 2016 Nov;36(11):1657-1667. doi: 10.1111/liv.13159. Epub 2016 Jun 15.


[Spontaneous clearance of hepatitis C virus after liver transplantation: Report of two cases].

Urzúa Á, Poniachik J, Díaz JC, Castillo J, Saure A, Lembach H, Ibarra J, Venegas M.

Rev Med Chil. 2015 May;143(5):663-7. doi: 10.4067/S0034-98872015000500015. Review. Spanish.


[Second Consensus of the Chilean Society of Endocrinology and Diabetes about insulin resistance].

Pollak F, Araya V, Lanas A, Sapunar J, Arrese M, Aylwin CG, Bezanilla CG, Carrasco E, Carrasco F, Codner E, Díaz E, Durruty P, Galgani J, García H, Lahsen R, Liberman C, López G, Maíz A, Mujica V, Poniachik J, Sir T, Soto N, Valderas J, Villaseca P, Zavala C.

Rev Med Chil. 2015 May;143(5):627-36. doi: 10.4067/S0034-98872015000500012. Spanish.


[Skin manifestations in adults with a liver allograft].

Daza F, Poniachik J, Zemelman V, Ibarra J, Espinoza M, Castillo J, Cardemil G, Díaz JC, Saure A, Lembach H, Calderón P.

Rev Med Chil. 2015 May;143(5):584-8. doi: 10.4067/S0034-98872015000500005. Spanish.


[Benign focal liver lesions detected by computed tomography: Review of 1,184 examinations].

Horta G, López M, Dotte A, Cordero J, Chesta C, Castro A, Palavecino P, Poniachik J.

Rev Med Chil. 2015 Feb;143(2):197-202. doi: 10.4067/S0034-98872015000200007. Spanish.


Genotype F of hepatitis B: response to interferon.

Venegas M, Poniachik J, Fuster F, Hurtado C, Villanueva RA, Brahm J.

Antivir Ther. 2015;20(4):453-6. doi: 10.3851/IMP2886. Epub 2014 Oct 16.


Management of nonalcoholic fatty liver disease: an evidence-based clinical practice review.

Arab JP, Candia R, Zapata R, Muñoz C, Arancibia JP, Poniachik J, Soza A, Fuster F, Brahm J, Sanhueza E, Contreras J, Cuellar MC, Arrese M, Riquelme A.

World J Gastroenterol. 2014 Sep 14;20(34):12182-201. doi: 10.3748/wjg.v20.i34.12182. Review.


[Hepatitis B virus immunoglobulin on demand to prevent infection recurrence among liver allograft recipients: report of three cases].

Poniachik J, Pizarro C, Contreras J, Silva J, Hurtado C, Venegas M, Castillo J, Cardemil G, Oksenberg D, Ibarra J, Bórquez A, Díaz JC.

Rev Med Chil. 2012 Jan;140(1):78-83. doi: /S0034-98872012000100011. Epub 2012 Apr 12. Spanish.


[Latin American guideline for the management of chronic hepatitis B].

Gadano A, Daruich J, Cheinquer H, Faimboin H, Pessoa M, Tanno H, Mattos A, Silva M, Paraná R, Galoppo C, Porta G, Garassini M, Ferrandiz J, Dávalos M, Galdame O, Marciano S, Ballerga EG, Bessone F, Hernández N, Fassio E, Poniachik J, Strauss E.

Acta Gastroenterol Latinoam. 2011 Dec;41(4):340-50. Spanish. No abstract available.


[Fulminant hepatic failure by hepatitis B virus in a patient with human immunodeficiency virus infection: report of one case].

Sagredo S, Mancilla C, Estuardo N, Poniachik J.

Rev Med Chil. 2011 Oct;139(10):1336-9. doi: /S0034-98872011001000013. Epub 2012 Jan 3. Spanish.


Acute and fulminant hepatitis induced by flutamide: case series report and review of the literature.

Brahm J, Brahm M, Segovia R, Latorre R, Zapata R, Poniachik J, Buckel E, Contreras L.

Ann Hepatol. 2011 Jan-Mar;10(1):93-8. Review.


[Histological regression of liver fibrosis with immunosuppressive therapy in autoimmune hepatitis].

Valera JM, Smok G, Márquez S, Poniachik J, Brahm J.

Gastroenterol Hepatol. 2011 Jan;34(1):10-5. doi: 10.1016/j.gastrohep.2010.10.003. Epub 2010 Dec 30. Spanish.


Small intestinal clustered contractions and bacterial overgrowth: a frequent finding in obese patients.

Madrid AM, Poniachik J, Quera R, Defilippi C.

Dig Dis Sci. 2011 Jan;56(1):155-60. doi: 10.1007/s10620-010-1239-9. Epub 2010 May 1.


Alcohol absorption modification after a laparoscopic sleeve gastrectomy due to obesity.

Maluenda F, Csendes A, De Aretxabala X, Poniachik J, Salvo K, Delgado I, Rodriguez P.

Obes Surg. 2010 Jun;20(6):744-8. doi: 10.1007/s11695-010-0136-9.


Decreased liver fatty acid delta-6 and delta-5 desaturase activity in obese patients.

Araya J, Rodrigo R, Pettinelli P, Araya AV, Poniachik J, Videla LA.

Obesity (Silver Spring). 2010 Jul;18(7):1460-3. doi: 10.1038/oby.2009.379. Epub 2009 Oct 29.


Enhancement in liver SREBP-1c/PPAR-alpha ratio and steatosis in obese patients: correlations with insulin resistance and n-3 long-chain polyunsaturated fatty acid depletion.

Pettinelli P, Del Pozo T, Araya J, Rodrigo R, Araya AV, Smok G, Csendes A, Gutierrez L, Rojas J, Korn O, Maluenda F, Diaz JC, Rencoret G, Braghetto I, Castillo J, Poniachik J, Videla LA.

Biochim Biophys Acta. 2009 Nov;1792(11):1080-6. doi: 10.1016/j.bbadis.2009.08.015. Epub 2009 Sep 4.


Liver NF-kappaB and AP-1 DNA binding in obese patients.

Videla LA, Tapia G, Rodrigo R, Pettinelli P, Haim D, Santibañez C, Araya AV, Smok G, Csendes A, Gutierrez L, Rojas J, Castillo J, Korn O, Maluenda F, Díaz JC, Rencoret G, Poniachik J.

Obesity (Silver Spring). 2009 May;17(5):973-9. doi: 10.1038/oby.2008.601. Epub 2009 Jan 22.


[General considerations, indications and contraindications for liver transplantation in Chile: a multicenter consensus development document].

Hepp J, Zapata R, Buckel E, Martínez J, Uribe M, Díaz JC, Ferrario M, Sanhueza E, Pérez RM, Hunter B, Ríos G, Humeres R, Poniachik J, Oksenberg D, Arrese M.

Rev Med Chil. 2008 Jun;136(6):793-804. doi: /S0034-98872008000600017. Epub 2008 Aug 26. Spanish.


Study of cytochrome P450 2E1 and its allele variants in liver injury of nondiabetic, nonalcoholic steatohepatitis obese women.

Varela NM, Quiñones LA, Orellana M, Poniachik J, Csendes A, Smok G, Rodrigo R, Cáceres DD, Videla LA.

Biol Res. 2008;41(1):81-92. doi: /S0716-97602008000100010. Epub 2008 Aug 21.


Effects of weight loss on liver and erythrocyte polyunsaturated fatty acid pattern and oxidative stress status in obese patients with non-alcoholic fatty liver disease.

Elizondo A, Araya J, Rodrigo R, Signorini C, Sgherri C, Comporti M, Poniachik J, Videla LA.

Biol Res. 2008;41(1):59-68. doi: /S0716-97602008000100008. Epub 2008 Aug 21.


[Study of celiac disease in patients with non-alcoholic fatty liver and autoimmune hepatic diseases].

Valera JM, Hurtado C, Poniachik J, Abumohor P, Brahm J.

Gastroenterol Hepatol. 2008 Jan;31(1):8-11. Spanish.


Oral ulcers produced by mycophenolate mofetil in two liver transplant patients.

Naranjo J, Poniachik J, Cisco D, Contreras J, Oksenberg D, Valera JM, Díaz JC, Rojas J, Cardemil G, Mena S, Castillo J, Rencoret G, Godoy J, Escobar J, Rodríguez J, Leyton P, Fica A, Toledo C.

Transplant Proc. 2007 Apr;39(3):612-4.


Polyunsaturated fatty acid pattern in liver and erythrocyte phospholipids from obese patients.

Elizondo A, Araya J, Rodrigo R, Poniachik J, Csendes A, Maluenda F, Díaz JC, Signorini C, Sgherri C, Comporti M, Videla LA.

Obesity (Silver Spring). 2007 Jan;15(1):24-31.


Insulin resistance and oxidative stress interdependency in non-alcoholic fatty liver disease.

Videla LA, Rodrigo R, Araya J, Poniachik J.

Trends Mol Med. 2006 Dec;12(12):555-8. Epub 2006 Oct 17.


Increased production of IL-1alpha and TNF-alpha in lipopolysaccharide-stimulated blood from obese patients with non-alcoholic fatty liver disease.

Poniachik J, Csendes A, Díaz JC, Rojas J, Burdiles P, Maluenda F, Smok G, Rodrigo R, Videla LA.

Cytokine. 2006 Mar 7;33(5):252-7. Epub 2006 Mar 27.


Endoscopic band ligation of bleeding dieulafoy lesions: the best therapeutic strategy.

Valera JM, Pino RQ, Poniachik J, Gil LC, O'Brien M, Sáenz R, Quigley EM.

Endoscopy. 2006 Feb;38(2):193-4. No abstract available.


[Primary sclerosing cholangitis: a twelve-year experience].

Orellana I, Valera JM, Nei C, Poniachik J, Berger Z, Latorre R, Smok G, Brahm J.

Rev Med Chil. 2005 Jul;133(7):776-80. Epub 2005 Aug 26. Spanish.


Relationship between in vivo chlorzoxazone hydroxylation, hepatic cytochrome P450 2E1 content and liver injury in obese non-alcoholic fatty liver disease patients.

Orellana M, Rodrigo R, Varela N, Araya J, Poniachik J, Csendes A, Smok G, Videla LA.

Hepatol Res. 2006 Jan;34(1):57-63.


Oxidative stress and depletion of hepatic long-chain polyunsaturated fatty acids may contribute to nonalcoholic fatty liver disease.

Videla LA, Rodrigo R, Araya J, Poniachik J.

Free Radic Biol Med. 2004 Nov 1;37(9):1499-507. Review.


[Albumin dialysis MARS (Molecular Adsorbent Recirculating System) as a bridge for liver transplantation in acute liver failure. Report of three cases].

Contreras J, Poniachik J, Oksenberg D, Cortés C, Valera JM, Cotera A, Pacheco A, Segovia E, Sanhueza ME, Boltansky A, Rojas J, Guerrero J, Díaz JC.

Rev Med Chil. 2004 May;132(5):601-7. Spanish.


Increase in long-chain polyunsaturated fatty acid n - 6/n - 3 ratio in relation to hepatic steatosis in patients with non-alcoholic fatty liver disease.

Araya J, Rodrigo R, Videla LA, Thielemann L, Orellana M, Pettinelli P, Poniachik J.

Clin Sci (Lond). 2004 Jun;106(6):635-43.


[Drug induced liver disease: clinical and pathological patterns in 33 cases].

Contreras J, Poniachik J, Planzer M, Lazarte R, Smok G, Oksenberg D, Madrid AM, Brahm J.

Rev Med Chil. 2003 Oct;131(10):1128-34. Spanish.


[Familial transmission of hepatitis C virus infection in Chilean subjects].

Velasco M, Poniachik J, Alegría S, Brahm J.

Rev Med Chil. 2003 Oct;131(10):1123-7. Spanish.


Oxidative stress-related parameters in the liver of non-alcoholic fatty liver disease patients.

Videla LA, Rodrigo R, Orellana M, Fernandez V, Tapia G, Quiñones L, Varela N, Contreras J, Lazarte R, Csendes A, Rojas J, Maluenda F, Burdiles P, Diaz JC, Smok G, Thielemann L, Poniachik J.

Clin Sci (Lond). 2004 Mar;106(3):261-8.


[Laparoscopic and classic cholecystectomy in patients with liver cirrhosis].

Poniachik J, Castro S, Madrid AM, Quera R, Amat J, Smok G, Cumsille M, Brahm J.

Rev Med Chil. 2002 Dec;130(12):1343-8. Spanish.


[Gastric neuroendocrine tumors: clinical, endoscopic presentation and alternatives of treatment].

Lazarte R, Poniachik J, Smok G, Contreras J, Gutiérrez L, Csendes A.

Rev Med Chil. 2002 Sep;130(9):985-92. Spanish.


[Obesity: risk factor for steatohepatitis and hepatic fibrosis].

Poniachik J, Mancilla C, Contreras J, Csendes A, Smok G, Cavada G, Rojas J, Oksenberg D, Burdiles P, Maluenda F, Díaz JC.

Rev Med Chil. 2002 Jul;130(7):731-6. Spanish.


[Fulminant hepatic failure].

Poniachik J, Quera R, Lui A.

Rev Med Chil. 2002 Jun;130(6):691-8. Review. Spanish.


[heparin and insulin treatment of acute pancreatitis caused by hypertriglyceridemia. Experience of 5 cases].

Berger Z, Quera R, Poniachik J, Oksenberg D, Guerrero J.

Rev Med Chil. 2001 Dec;129(12):1373-8. Spanish.


[Intrarenal arterial doppler ultrasonography in cirrhotic patients with ascites, with and without hepatorenal syndrome].

Bardi A, Sapunar J, Oksenberg D, Poniachik J, Fernández M, Paolinelli P, Orozco R, Biagini L.

Rev Med Chil. 2002 Feb;130(2):173-80. Spanish.


[Endoscopic coagulation with argon plasma, a therapeutic option in gastric antral vascular ectasia].

Poniachik J, Quera R, Sáenz R, Alfaro J, Smok G.

Rev Med Chil. 2001 May;129(5):547-51. Spanish.


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