Publications by authors named "Nora N Nunez-Villegas"

Objective: To identify the type of infections and risk factors for infection-related mortality (IRM) after allogeneic hematopoietic stem cell transplantation (HSCT).

Methods: Retrospective cohort study of patients <16 years of age treated in 2010-2019 was conducted. Unadjusted hazard ratios (HR) and adjusted hazard ratios (aHR) with 95% confidence intervals (95% CIs) were estimated using Cox regression.

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Background: N-3 polyunsaturated fatty acids (LCPUFA-ω3), particularly docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) might have beneficial effects on lean mass and fat mass synthesis.

Objective: To investigate the effect of LCPUFA-ω3 supplementation on body composition changes in children with acute lymphoblastic leukemia (ALL) at remission and three months (3 mo) after supplementation.

Methods: This randomized controlled trial enrolled 72 children (3-13 y) with newly diagnosed ALL (placebo group [500 mg sunflower oil]: 36 patients; LCPUFA-ω3 group [225 mg DHA, 45 mg EPA]: 36 patients).

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Introduction: Increased triglycerides (TGs) are a major risk factor for cardiovascular disease. Furthermore, hypertriglyceridemia is commonly associated with a reduction of high-density lipoprotein cholesterol (HDL-C) and an increase in atherogenic small-dense low-density lipoprotein (LDL-C) levels. Studies provide support that polyunsaturated omega-3 fatty acids (ω3-LCPUFAs) are cardioprotective and have antithrombotic and anti-inflammatory effects.

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Introduction: Over the years, the Hispanic population living in the United States has consistently shown high incidence rates of childhood acute leukemias (AL). Similarly, high AL incidence was previously observed in Mexico City (MC). Here, we estimated the AL incidence rates among children under 15 years of age in MC during the period 2010-2017.

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Article Synopsis
  • Recent studies have highlighted the significance of long non-coding RNAs (lncRNAs) in the development of leukemia, suggesting their potential use as biomarkers for diagnosis and prognosis in childhood acute lymphoblastic leukemia (ALL).
  • A microarray analysis focused on children with B-lineage ALL found that high expression of lncRNAs LINC00152 and LINC01013 was linked to increased risks of early relapse and mortality, with specific hazard ratios calculated for different expression levels.
  • The findings suggest that LINC00152 might play a regulatory role in certain biological processes related to cell adhesion and could serve as a promising biomarker for predicting relapse in children suffering from B-ALL.
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Article Synopsis
  • Mexico City has a high incidence and mortality rate of acute lymphoblastic leukemia (ALL), with a noted rise in childhood obesity, which is linked to worse outcomes in these patients.
  • A study analyzed 1,070 children under 15 diagnosed with ALL to determine if obesity/overweight predicted early mortality and relapse within the first 24 months.
  • Results indicated that being overweight or obese at diagnosis significantly increased the risk of early mortality, but there was no strong association found between these conditions and early relapse rates.
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Acute lymphoblastic leukemia is the most common type of childhood cancer worldwide. Mexico City has one of the highest incidences and mortality rates of this cancer. It has previously been recognized that chromosomal translocations are important in cancer etiology.

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Background: Hemophilia is a hemorrhagic disease characterized by the deficiency of either coagulation factor VIII or IX. It impacts negatively in people's quality of life and it causes side effects, such as depression. The objective was to describe and analyze the health-related quality of life (HRQoL) and depression levels in a group of 50 pediatric patients with hemophilia (PPwH) and their parents.

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Background And Aims: It has been demonstrated that heterozygote and homozygote thiopurine S-methyltransferase (TPMT) mutant allele carriers are at high risk to develop severe and potentially fatal hematopoietic toxicity after treatment with standard doses of 6-mercaptopurine (6-MP) and methotrexate (MX). Those drugs are the backbone of acute lymphoblastic leukemia (ALL) and several autoimmune disease treatments. We undertook this study to determine the frequency of the TPMT deficient alleles in children with ALL and non-ALL subjects from Mexico City and Yucatan, Mexico.

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Background: Leukemias are the leading cause of childhood cancer. In most developed countries 1-2% of patients die during remission induction; however, in developing countries, this figure is higher and the causes of death apparently vary among the populations studied. The aim was to determine the cause of death during remission induction in pediatric patients with acute lymphoblastic leukemia (ALL) in the hospital "Dr.

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Introduction: Acute myeloid leukemias represent the second most common childhood leukemia subtype. In Mexico, there are few studies on descriptive epidemiology for this disease.

Aims: To report acute myeloid leukemia incidence for children less than 15 years of age in the Metropolitan Area of the Valley of Mexico for a period of five years (2010-2014) and to analyze whether there are differences in the incidence of acute myeloid leukemia by regions.

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The role of malnutrition at diagnosis as a predictor of early mortality in Mexican leukemia children remains controversial. The objective of present study was to investigate whether malnutrition was a predictor of early mortality during the first year of treatment in Mexican acute lymphoblastic leukemia (ALL) children through the first population-based study. A total of 794 newly diagnosed ALL pediatric patients from public hospitals of Mexico City were enrolled.

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Background: In Mexico and other developing countries, few reports of the survival of children with acute leukaemia exist. Objective. We aimed at comparing the disease-free survival of children with acute myeloid leukaemia who, in addition to being treated with the Latin American protocol of chemotherapy and an autologous transplant, either underwent early intensified chemotherapy or did not undergo such treatment.

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The objective of this population-based survey was to assess the peak age of incidence of B-cell precursor acute lymphoblastic leukemia (ALL) in children in Mexico City (MC). All patients were classified according to their immunophenotype, and only B-cell precursor and T-lineage were analyzed. Rates of incidence were calculated x10 children.

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