Who's Who


Academic Degrees

YearDegreeMajorInstitutionTownCountry
2004BScMolecular BiologyUniversity of VeracruzVeracruzMexico
1997MScMolecular BiologyNational Autonomous University of Mexico (UNAM)Mexico cityMexico
1994PhDBiologyNational Autonomous University of Mexico (UNAM)Mexico cityMexico


Current Research Projects

  • The development of the Cancer Registry of Merida Mexico
    Y Leal (Coordinator), Collaborators: Fernandez-Garrote LM, Acevedo-Garcia F, Medina-Escobedo G, Castillo-Aguilar R, Forman D

  • Circulating estrogen, trefoil factors, ghrelin and gastric preneoplastic lesions among menopausal and postmenopausal women
    Y Leal (Coordinator), Collaborators: Camargo MC, Acevedo-Garcia F, Medina-Escobedo G, Torres J, Rabkin C.

  • Molecular Biomarkers in the progression of atrophic gastritis to gastric cancer
    Y Leal (Coordinator), Collaborators: Acevedo-Garcia F, Medina-Escobedo G, Bastidas M, Camargo MC


Selected Publications

Martínez-López J, Torres J, Camorlinga-Ponce M, Mantilla A, Leal YA, Fuentes-Pananá E. (2014) Evidence of Epstein-Barr Virus Association with Gastric Cancer and Non-Atrophic Gastritis. Viruses. 6(1): 301

Morales-Sanchez A, Molina-Muñoz T, Martinez-Lopez JL, Hernandez-Sancen P, Mantilla A, Leal YA, Torres J, Fuentes-Panana E. (2013) No association between Epstein-Barr Virus ans Mouse Mammary Tumor Virus with Breast Cancer in Mexican Women. Scientific Reports. 3:2970.

Leal YA, Álvarez-Nemegyei J, Velázquez JR, Rosado-Quiab U, Diego-Rodríguez N, Paz-Baeza E, Dávila-Velázquez J. (2012) Risk Factors and Prognosis for Neonatal Sepsis in Southeastern Mexico: Analysis of a Four-year Historic Cohort Follow-up. BMC Pregnancy and Childbirth J. 12:48.

Leal YA, Flores LL, Fuentes-Panana E, Cedillo-Rivera R, Torres J. (2011) 13C-Urea Breath Test for the Diagnosis of Helicobacter pylori infection in children: A Meta-Analysis. Journal of Helicobacter. 16(4):327.

Leal YA, Cedillo-Rivera R, Simon JA, Velázquez JR, Flores LL, Torres J. (2011) A Meta-Analysis on the Utility of Stool Sample-Based Tests for the Diagnosis of Helicobacter pylori infection in children. J Pediatr Gastroenterol & Nutr. 52(6):718.