Yelda A. Leal

ORCID: 0000-0003-1308-842X
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About
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Research Areas
  • Helicobacter pylori-related gastroenterology studies
  • Amoebic Infections and Treatments
  • Global Cancer Incidence and Screening
  • Acute Lymphoblastic Leukemia research
  • Childhood Cancer Survivors' Quality of Life
  • Immune Response and Inflammation
  • Galectins and Cancer Biology
  • Gastroesophageal reflux and treatments
  • Neonatal and Maternal Infections
  • Liver Disease Diagnosis and Treatment
  • Cancer Risks and Factors
  • Sepsis Diagnosis and Treatment
  • Viral-associated cancers and disorders
  • Parasitic Infections and Diagnostics
  • Economic and Financial Impacts of Cancer
  • Eosinophilic Esophagitis
  • Hepatitis C virus research
  • Infectious Diseases and Tuberculosis
  • Prenatal Screening and Diagnostics
  • Global Maternal and Child Health
  • Global Public Health Policies and Epidemiology
  • Microbial Metabolites in Food Biotechnology
  • Public Health Policies and Education
  • Cytokine Signaling Pathways and Interactions
  • Hepatocellular Carcinoma Treatment and Prognosis

Mexican Social Security Institute
2012-2024

Instituto Nacional de Cancerología
2023

Secretaría de Investigación, Innovación y Educación Superior
2012

Centro Medico Nacional Siglo XXI
2009

Centro Médico Nacional La Raza
2009

Neonatal sepsis is a worldwide public health issue in which, depending on the studied population, marked variations concerning its risk and prognostic factors have been reported. The aim of this study was to assess for neonatal prevailing at medical unit southeastern Mexico. Thus, we used historic cohort design association between series neonates their mothers, addition hospital evolution features prognosis (defined by Pediatric Sepsis Consensus [PSC] criteria) 11,790 newborns consecutively...

10.1186/1471-2393-12-48 article EN cc-by BMC Pregnancy and Childbirth 2012-06-12

Different lines of evidence support an association between Epstein-Barr virus (EBV) and gastric cancer (GC). The main understood risk factor to develop GC is infection by Helicobacter pylori (H. pylori), which triggers a local inflammatory response critical for progression from gastritis GC. role EBV in early lesions has been poorly studied. A recent study proposed cutoff value 2000 particles identify patients with increased chances the epithelium, may favor process. To better understand...

10.3390/v6010301 article EN cc-by Viruses 2014-01-20

Breast cancer is the most frequent malignancy affecting women worldwide. It has been suggested that infection by Epstein Barr Virus (EBV), Mouse Mammary Tumor or a similar virus, MMTV-like virus (MMTV-LV), play role in etiology of disease. However, studies looking at presence these viruses breast have produced conflicting results and this possible association remains controversial. Here, we used polymerase chain reaction assay to screen specific sequences EBV MMTV-LV 86 tumor 65 adjacent...

10.1038/srep02970 article EN cc-by-nc-nd Scientific Reports 2013-10-17

Prevalence of antibodies against Giardia duodenalis was determined by enzyme-linked immunosorbent assay in serum samples from a national serologic survey Mexico that included all geographic areas and socioeconomic demographic data for each person sampled. The country divided into four regions on the basis development (high, medium high, low, low). Of 3,461 tested, 1,914 (55.3%) were positive IgG duodenalis. Seropositivity age-specific; probability seropositivity increased 4.9-fold (95%...

10.4269/ajtmh.2009.80.6 article EN American Journal of Tropical Medicine and Hygiene 2009-01-01

Cancer is one of the major causes morbidity and mortality in world, with 14.1 million new cases 8.2 deaths annually. A marked disparity exists between developed countries developing countries, 57% 65% 2012 occurring countries. This global picture can only be obtained because data from population-based cancer registries, which allow estimations for different geographic areas. Our objective to perform a review types registries their role control cancer. These are lacking In Central South...

10.21149/spm.v58i2.7802 article EN cc-by-nc-sa Salud Pública de México 2016-03-01

Antecedents: The serum levels of some cytokines can be useful in the diagnosis neonatal sepsis; prognostic value a cytokine profile has not, to our knowledge, been explored this disease.Objective: objective study is evaluate diagnostic IL-1, -2, -4, -5, -6, -7, -8, -10, -12, -13, and -17, TNF, IFNγ, G-CSF, GM-CSF, MCP1, MIP1β neonates with high risk developing sepsis.Methods: Sepsis was evaluated 96 high-risk neonates. We assessed on hospital admission during or not sepsis.Results: Fifty...

10.1080/14767058.2018.1449828 article EN The Journal of Maternal-Fetal & Neonatal Medicine 2018-03-21

// Jone Garay 1 , M. Blanca Piazuelo 2 Lizbeth Lopez-Carrillo 3 Yelda A. Leal 4 Sumana Majumdar Li Nataly Cruz-Rodriguez 1, 5, 6 Silvia J. Serrano-Gomez Carlos S. Busso 7 Barbara G. Schneider Alberto Delgado Luis E. Bravo 8 Angela Crist 9 Stryder Meadows Constanza Camargo 10 Keith T. Wilson 2, 11 Pelayo Correa and Jovanny Zabaleta 12 Stanley Scott Cancer Center, LSUHSC, New Orleans, LA, USA Division of Gastroenterology, Hepatology, Nutrition, Department Medicine, Vanderbilt University...

10.18632/oncotarget.16792 article EN Oncotarget 2017-04-03

Liver cancer is the fourth leading cause of cancer-related death worldwide. In Mexico, there a high burden liver mortality in rural states, which affects both women and men equally. Thus, we aimed to describe demographic clinical characteristics hepatocellular (HCC) by sex Mexico. Demographic information were extracted retrospectively from medical records patients with HCC initially treated (2015-2022) at participating institutions national survey across country. The male-to-female ratio was...

10.20944/preprints202405.1998.v1 preprint EN 2024-05-30

Acute lymphoblastic leukemia (ALL) etiology remains largely unknown; incidence patterns by age, sex, and geographical distribution suggest a potential environmental role.To identify ALL clusters from four contrasting urban areas of Mexico to characterize the sources carcinogens.Hospital-based cases (n = 443) diagnosed in children <19 years old Metropolitan Zones Merida San Luis Potosi, State Mexico, Tijuana were analyzed (2015-2020). coded according International Classification Diseases for...

10.3389/fonc.2023.1236942 article EN cc-by Frontiers in Oncology 2023-10-12

To briefly describe the process of establishment and preliminary results Mérida Population-based Cancer Registry (Mérida-PBCR).Mérida-PBCR started in 2016 as a research project IMSS, with gradual increase its information sources. It covers population 908 536 inhabitants. Data collection is active passive, international standards are used; CanReg5 software enables data entry, storage analysis.Current include 71.5% For period 2015- 2016, total 2 623 new cancer cases were registered, majority...

10.21149/10501 article ES cc-by-nc-sa Salud Pública de México 2019-12-20

Liver cancer is the fourth leading cause of cancer-related death worldwide. In Mexico, there a high burden liver mortality in rural states, affecting both women and men equally. Thus, we aimed to describe demographic clinical characteristics hepatocellular (HCC) by sex Mexico. Demographic information was extracted retrospectively from medical records patients with HCC initially treated (2015-2022) at institutions participating national survey across country. The male-to-female ratio...

10.3390/diseases12100262 article EN cc-by Diseases 2024-10-21
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