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Mérida-Ortega Á, Ugalde-Resano R, Rincón-Rubio A, Flores-Collado G, Flores-García MK, Rangel-Moreno K, Gennings C, López-Carrillo L. Food groups consumption and urinary metal mixtures in women from Northern Mexico. J Trace Elem Med Biol 2024; 84:127428. [PMID: 38484634 DOI: 10.1016/j.jtemb.2024.127428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 05/27/2024]
Abstract
OBJECTIVE We aimed to evaluate the association between food groups and mixtures of urinary metal concentrations in a sample of women; as well as identify the most important metals within each mixture. METHODS This is a cross-sectional analysis between food groups consumption and mixtures of various metals in urine from 439 women, ≥18 years old, from Northen Mexico. We estimated the dietary intake of 20 food groups through a validated semi-quantitative food frequency questionnaire. Urinary metal concentration of aluminum, antimony, arsenic, barium, cadmium, cesium, chromium, cobalt, copper, lead, manganese, magnesium, molybdenum, nickel, selenium, thallium, tin, vanadium, and zinc, were measured by inductively coupled plasma triple quad. We used weighted quantile sum (WQS) regression with binomial family specification to assess the association of food groups and metal mixtures, as well as to identify the most important ones. RESULTS We identified tin, lead, and antimony as the most important metals, in the metal mixtures that were positively associated with the consumption of eggs, non-starchy vegetables, fruits, seafood, corn, oil seeds, chicken, soda, legumes, red and/or processed meats, as well as negatively with the consumption of alliums, corn tortillas and/or vegetable oils. CONCLUSION Our findings suggest that food consumption is related to more than one metal in the study sample, and highlights the presence of some of them. Further research is required to identify the possible sources of metals in food, as well as the chronic adverse health effects attributed to their simultaneous presence.
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Gonzalez-Palacios S, Compañ-Gabucio LM, Torres-Collado L, Oncina-Canovas A, García-de-la-Hera M, Collatuzzo G, Negri E, Pelucchi C, Rota M, López-Carrillo L, Lunet N, Morais S, Ward MH, Martin V, Lozano-Lorca M, Malekzadeh R, Pakseresht M, Hernández-Ramírez RU, Bonzi R, Patel L, López-Cervantes M, Rabkin CS, Tsugane S, Hidaka A, Trichopoulou A, Karakatsani A, Camargo MC, Curado MP, Zhang ZF, La Vecchia C, Boffetta P, Vioque J. The protective effect of dietary folate intake on gastric cancer is modified by alcohol consumption: A pooled analysis of the StoP Consortium. Int J Cancer 2024. [PMID: 38757245 DOI: 10.1002/ijc.35004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 05/18/2024]
Abstract
Dietary folate intake has been identified as a potentially modifiable factor of gastric cancer (GC) risk, although the evidence is still inconsistent. We evaluate the association between dietary folate intake and the risk of GC as well as the potential modification effect of alcohol consumption. We pooled data for 2829 histologically confirmed GC cases and 8141 controls from 11 case-control studies from the international Stomach Cancer Pooling Consortium. Dietary folate intake was estimated using food frequency questionnaires. We used linear mixed models with random intercepts for each study to calculate adjusted odds ratios (OR) and 95% confidence interval (CI). Higher folate intake was associated with a lower risk of GC, although this association was not observed among participants who consumed >2.0 alcoholic drinks/day. The OR for the highest quartile of folate intake, compared with the lowest quartile, was 0.78 (95% CI, 0.67-0.90, P-trend = 0.0002). The OR per each quartile increment was 0.92 (95% CI, 0.87-0.96) and, per every 100 μg/day of folate intake, was 0.89 (95% CI, 0.84-0.95). There was a significant interaction between folate intake and alcohol consumption (P-interaction = 0.02). The lower risk of GC associated with higher folate intake was not observed in participants who consumed >2.0 drinks per day, ORQ4v Q1 = 1.15 (95% CI, 0.85-1.56), and the OR100 μg/day = 1.02 (95% CI, 0.92-1.15). Our study supports a beneficial effect of folate intake on GC risk, although the consumption of >2.0 alcoholic drinks/day counteracts this beneficial effect.
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Flores-García MK, Pérez-Saldivar ML, Denova-Gutiérrez E, Rodríguez-Villalobos LR, Dosta-Herrera JJ, Mondragón-García JA, Castañeda-Echevarría A, López-Caballero MG, Martínez-Silva SI, Rivera-González J, Hernández-Pineda NA, Flores-Botello J, Pérez-Gómez JA, Rodríguez-Vázquez MA, Torres-Valle D, Olvera-Durán JÁ, Martínez-Ríos A, García-Cortes LR, Almeida-Hernández C, Flores-Lujano J, Núñez-Enriquez JC, Mendez VCB, Mata-Rocha M, Rosas-Vargas H, Duarte-Rodríguez DA, Jiménez-Morales S, Mejía-Aranguré JM, López-Carrillo L. Sociodemographic and Lifestyle Characteristics Associated with Maternal Dietary Patterns in Mexico. Nutrients 2024; 16:1451. [PMID: 38794689 PMCID: PMC11124351 DOI: 10.3390/nu16101451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
There is scarce evidence on sociodemographic and lifestyle characteristics that may explain adherence to different dietary patterns (DPs) during pregnancy. Our aims were to identify dietary patterns in a sample of pregnant Mexican women and to describe their association with selected sociodemographic and lifestyle characteristics. This is a secondary cross-sectional analysis of 252 mothers of children that participated as controls in a hospital-based case-control study of childhood leukemia. We obtained parents' information about selected sociodemographic characteristics, as well as alcohol and tobacco consumption. We also obtained dietary information during pregnancy. We identified DPs using cluster and factor analyses and we estimated their association with characteristics of interest. We identified two DPs using cluster analysis, which we called "Prudent" and "Non healthy", as well as three DPs through factor analysis, namely "Prudent", "Processed foods and fish", and "Chicken and vegetables". Characteristics associated with greater adherence to "Prudent" patterns were maternal education, older paternal age, not smoking, and being a government employee and/or uncovered population. Likewise, the "Processed foods and fish" pattern was associated with greater maternal and paternal education, as well as those with less household overcrowding. We did not identify sociodemographic variables related to the "Chicken and Vegetables" pattern. Our results may be useful to identify target populations that may benefit from interventions aimed to improve individual dietary decisions during pregnancy.
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Sassano M, Seyyedsalehi MS, Collatuzzo G, Pelucchi C, Bonzi R, Ferraroni M, Palli D, Yu GP, Zhang ZF, López-Carrillo L, Lunet N, Morais S, Zaridze D, Maximovich D, Martín V, Castano-Vinyals G, Vioque J, González-Palacios S, Ward MH, Malekzadeh R, Pakseresht M, Hernández-Ramirez RU, López-Cervantes M, Negri E, Turati F, Rabkin CS, Tsugane S, Hidaka A, Lagiou A, Lagiou P, Camargo MC, Curado MP, Boccia S, La Vecchia C, Boffetta P. Dietary intake of vitamin C and gastric cancer: a pooled analysis within the Stomach cancer Pooling (StoP) Project. Gastric Cancer 2024; 27:461-472. [PMID: 38436761 PMCID: PMC11016516 DOI: 10.1007/s10120-024-01476-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/29/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Previous studies suggest that dietary vitamin C is inversely associated with gastric cancer (GC), but most of them did not consider intake of fruit and vegetables. Thus, we aimed to evaluate this association within the Stomach cancer Pooling (StoP) Project, a consortium of epidemiological studies on GC. METHODS Fourteen case-control studies were included in the analysis (5362 cases, 11,497 controls). We estimated odds ratios (ORs) and corresponding 95% confidence intervals (CIs) for the association between dietary intake of vitamin C and GC, adjusted for relevant confounders and for intake of fruit and vegetables. The dose-response relationship was evaluated using mixed-effects logistic models with second-order fractional polynomials. RESULTS Individuals in the highest quartile of dietary vitamin C intake had reduced odds of GC compared with those in the lowest quartile (OR: 0.64; 95% CI: 0.58, 0.72). Additional adjustment for fruit and vegetables intake led to an OR of 0.85 (95% CI: 0.73, 0.98). A significant inverse association was observed for noncardia GC, as well as for both intestinal and diffuse types of the disease. The results of the dose-response analysis showed decreasing ORs of GC up to 150-200 mg/day of vitamin C (OR: 0.54; 95% CI: 0.41, 0.71), whereas ORs for higher intakes were close to 1.0. CONCLUSIONS The findings of our pooled study suggest that vitamin C is inversely associated with GC, with a potentially beneficial effect also for intakes above the currently recommended daily intake (90 mg for men and 75 mg for women).
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Collatuzzo G, Cortez Lainez J, Pelucchi C, Negri E, Bonzi R, Palli D, Ferraroni M, Zhang ZF, Yu GP, Lunet N, Morais S, López-Carrillo L, Zaridze D, Maximovitch D, Guevara M, Santos-Sanchez V, Vioque J, Garcia de la Hera M, Ward MH, Malekzadeh R, Pakseresht M, Hernández-Ramírez RU, Turati F, Rabkin CS, Liao LM, Sinha R, López-Cervantes M, Tsugane S, Hidaka A, Camargo MC, Curado MP, Zubair N, Kristjansson D, Shah S, La Vecchia C, Boffetta P. The association between dietary fiber intake and gastric cancer: a pooled analysis of 11 case-control studies. Eur J Nutr 2024:10.1007/s00394-024-03388-w. [PMID: 38687390 DOI: 10.1007/s00394-024-03388-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 04/01/2024] [Indexed: 05/02/2024]
Abstract
PURPOSE Gastric cancer (GC) is among the leading causes of cancer mortality worldwide. The objective of this study was to investigate the association between dietary fiber intake and GC. METHODS We pooled data from 11 population or hospital-based case-control studies included in the Stomach Cancer Pooling (StoP) Project, for a total of 4865 histologically confirmed cases and 10,626 controls. Intake of dietary fibers and other dietary factors was collected using food frequency questionnaires. We calculated the odds ratios (OR) and 95% confidence intervals (CI) of the association between dietary fiber intake and GC by using a multivariable logistic regression model adjusted for study site, sex, age, caloric intake, smoking, fruit and vegetable intake, and socioeconomic status. We conducted stratified analyses by these factors, as well as GC anatomical site and histological type. RESULTS The OR of GC for an increase of one quartile of fiber intake was 0.91 (95% CI: 0.85, 0.97), that for the highest compared to the lowest quartile of dietary fiber intake was 0.72 (95% CI: 0.59, 0.88). Results were similar irrespective of anatomical site and histological type. CONCLUSION Our analysis supports the hypothesis that dietary fiber intake may exert a protective effect on GC.
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Sassano M, Collatuzzo G, Seyyedsalehi MS, Pelucchi C, Bonzi R, Palli D, Ferraroni M, Lunet N, Morais S, López-Carrillo L, Malekzadeh R, Pakseresht M, López-Cervantes M, Ward MH, Camargo MC, Curado MP, Vioque J, Zhang ZF, Boccia S, Negri E, La Vecchia C, Boffetta P. Dietary intake of copper and gastric cancer: a pooled analysis within the Stomach cancer Pooling (StoP) Project. Int J Epidemiol 2024; 53:dyae059. [PMID: 38670544 DOI: 10.1093/ije/dyae059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Evidence on the potential association between dietary copper intake and gastric cancer (GC) is lacking. Thus, we aimed to evaluate this association within the Stomach cancer Pooling (StoP) Project-an international consortium of epidemiological studies on GC. METHODS Data from five case-control studies within the StoP Project were included (2448 cases, 4350 controls). We estimated adjusted odds ratios (ORs) and 95% CIs for the association between dietary copper intake and GC using multivariable mixed-effects logistic regression models. We also modelled the dose-response relationship between copper intake and GC using a logistic mixed-effects model with fractional polynomial. RESULTS The OR for the highest quartile of copper intake compared with the lowest one was 0.78 (95% CI: 0.63-0.95; P for trend = 0.013). Results were similar for non-cardia-type (OR: 0.72; 95% CI: 0.57-0.91), intestinal-type (OR: 0.75; 95% CI: 0.56-0.99) and other histological-type GC (OR: 0.65; 95% CI: 0.44-0.96). The dose-response analysis showed a steep decrease in ORs for modest intakes (<1 mg/day), which were subsequently steady for ≤3 mg/day (OR: 0.09; 95% CI: 0.02-0.41) and slowly increased for higher intakes. CONCLUSIONS The findings of our large study suggest that copper intake might be inversely associated with GC, although their confirmation by prospective studies is required.
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Rincón-Rubio A, Mérida-Ortega Á, Ugalde-Resano R, Gamboa-Loira B, Rothenberg SJ, González FB, Cebrián ME, López-Carrillo L. Carcinogenic, non-carcinogenic risk, and attributable cases to organochlorine pesticide exposure in women from Northern Mexico. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:421. [PMID: 38570395 DOI: 10.1007/s10661-024-12584-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/23/2024] [Indexed: 04/05/2024]
Abstract
This study aimed to estimate the carcinogenic and non-carcinogenic risk as well as the attributable cases due to exposure to organochlorine pesticides (OCPs): hexachlorobenzene (HCB), dichlorophenyltrichloroethane (DDT), hexachlorocyclohexane (HCH), heptachlor, and chlordane. From serum concentrations of pesticides of interest in a sample of 908 women from Northern Mexico, the risk for both cancer and non-cancer health effects was evaluated. The population attributable fraction (PAF) was also calculated based on summary association estimates between exposure to OCPs and different health events. Findings revealed that due to their OCP exposure slightly less than half of the women in the sample were at increased risk of developing non-cancerous diseases. Moreover, approximately 25% and 75% of participants were at risk of develop some type of cancer associated with their HCB and DDE concentrations, respectively. In addition, it was estimated that 40.5% of type 2 diabetes, 18.7% of endometriosis, and 23.1% of non-Hodgkin's lymphoma cases could have been prevented if women had not been exposed to these OCPs. Results suggest that the use of OCPs may have contributed to the disease burden in the study area and, based on the time required for these substances to be eliminated from the body, there are probably some women who are still at elevated risk of developing diseases associated to OCPs.
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Flores-Lujano J, Allende-López A, Duarte-Rodríguez DA, Alarcón-Ruiz E, López-Carrillo L, Shamah-Levy T, Cebrián ME, Baños-Lara MDR, Casique-Aguirre D, Elizarrarás-Rivas J, López-Aquino JA, Garrido-Hernández MÁ, Olvera-Caraza D, Terán-Cerqueda V, Martínez-José KB, Aristil-Chery PM, Alvarez-Rodríguez E, Herrera-Olivares W, Ruíz-Arguelles GJ, Chavez-Aguilar LA, Márquez-Toledo A, Cano-Cuapio LS, Luna-Silva NC, Martínez-Martell MA, Ramirez-Ramirez AB, Merino-Pasaye LE, Galván-Díaz CA, Medina-Sanson A, Gutiérrez-Rivera MDL, Martín-Trejo JA, Rodriguez-Cedeño E, Bekker-Méndez VC, Romero-Tlalolini MDLÁ, Cruz-Maza A, Juárez-Avendaño G, Pérez-Tapia SM, Rodríguez-Espinosa JC, Suárez-Aguirre MC, Herrera-Quezada F, Hernández-Díaz A, Galván-González LA, Mata-Rocha M, Olivares-Sosa AI, Rosas-Vargas H, Jiménez-Morales S, Cárdenas-González M, Álvarez-Buylla Roces ME, Duque-Molina C, Pelayo R, Mejía-Aranguré JM, Núñez-Enriquez JC. Epidemiology of childhood acute leukemias in marginalized populations of the central-south region of Mexico: results from a population-based registry. Front Oncol 2024; 14:1304263. [PMID: 38444682 PMCID: PMC10914251 DOI: 10.3389/fonc.2024.1304263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 01/15/2024] [Indexed: 03/07/2024] Open
Abstract
Introduction Acute leukemias (AL) are the main types of cancer in children worldwide. In Mexico, they represent one of the main causes of death in children under 20 years of age. Most of the studies on the incidence of AL in Mexico have been developed in the urban context of Greater Mexico City and no previous studies have been conducted in the central-south of the country through a population-based study. The aim of the present work was to identify the general and specific incidence rates of pediatric AL in three states of the south-central region of Mexico considered as some of the marginalized populations of Mexico (Puebla, Tlaxcala, and Oaxaca). Methods A population-based study was conducted. Children aged less than 20 years, resident in these states, and newly diagnosed with AL in public/private hospitals during the period 2021-2022 were identified. Crude incidence rates (cIR), standardized incidence rates (ASIRw), and incidence rates by state subregions (ASIRsr) were calculated. Rates were calculated using the direct and indirect method and reported per million children under 20 years of age. In addition, specific rates were calculated by age group, sex, leukemia subtype, and immunophenotype. Results A total of 388 cases with AL were registered. In the three states, the ASIRw for AL was 51.5 cases per million (0-14 years); in Puebla, it was 53.2, Tlaxcala 54.7, and Oaxaca de 47.7. In the age group between 0-19 years, the ASIRw were 44.3, 46.4, 48.2, and 49.6, in Puebla, Tlaxcala, and Oaxaca, respectively. B-cell acute lymphoblastic leukemia was the most common subtype across the three states. Conclusion The incidence of childhood AL in the central-south region of Mexico is within the range of rates reported in other populations of Latin American origin. Two incidence peaks were identified for lymphoblastic and myeloid leukemias. In addition, differences in the incidence of the disease were observed among state subregions which could be attributed to social factors linked to the ethnic origin of the inhabitants. Nonetheless, this hypothesis requires further investigation.
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Pérez-Saldivar ML, Flores-García MK, Núñez-Villegas N, Fajardo-Gutiérrez A, Medina-Sanson A, Jiménez-Hernández E, Martín-Trejo JA, López-Santiago N, Peñaloza-González JG, Cortés-Herrera B, Merino-Pasaye LE, Amador-Sánchez R, García-López LR, Pérez-Lorenzana H, Román-Zepeda PF, Castañeda-Echevarría A, López-Caballero MG, Martínez-Silva SI, Rivera-González J, Granados-Kraulles J, Flores-Botello J, Medrano-López F, Rodríguez-Vázquez MA, Torres-Valle D, Mora-Rico K, Mora-Ríos FG, R.García‐Cortés L, Salcedo-Lozada P, Flores-Lujano J, Núñez-Enríquez JC, Bekker-Méndez VC, Mata-Rocha M, Rosas-Vargas H, Duarte-Rodríguez DA, Jiménez-Morales S, Hidalgo-Miranda A, López-Carrillo L, Mejía-Aranguré JM. Maternal diet in pregnancy and acute leukemia in infants: a case-control study in Mexico City. Front Oncol 2024; 13:1165323. [PMID: 38260836 PMCID: PMC10802844 DOI: 10.3389/fonc.2023.1165323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 12/08/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Epidemiological studies around the world on acute leukemia (AL) and risk factors in infants are scarce. Infant AL has been proposed to originate in utero, which facilitates its study by establishing a short exposure time in pregnant women to environmental and dietary factors that could contribute to the risk of or protection against leukemia. We hypothesized that maternal diet during pregnancy may be an important factor involved in AL in offspring. Methods We conducted a hospital-based case-control study from 2010 to 2019 on maternal diet during pregnancy in nine high-specialty public hospitals of different health institutions that diagnose and offer treatment to children with AL in Mexico City. Cases (n=109) were children ≤24 months of age with de novo diagnosis of AL, and controls (n=252) were children obtained in hospitals from second-level medical care matched for age, sex, and health institution. Maternal diet during pregnancy was obtained by a semiquantitative food frequency questionnaire. Unconditional logistic regression models were used to assess the association between food groups and infant AL. Potential confounders were assessed by constructing directed acyclic graphs (DAGs) with Dagitty software in which adjusted options were identified for the construction of unconditional logistic regression models. Results Cases were slightly predominantly female (52.3%). The years of education of the mother in cases and controls was 0-9 on average, and those who reported smoking cigarettes and consuming alcohol during pregnancy did so at a low frequency. Regarding the mother's diet, the main findings were that the consumption of allium vegetables during pregnancy was inversely associated with AL for medium and high consumption (OR=0.26, 95% CI 0.14-0.46; P-trend< 0.001). In contrast, the high consumption of high-fat dairy products had a positive association with AL (OR=2.37, 95% CI 1.30-4.34; P-trend<0.001). No association was found between consumption of topoisomerase II inhibitor foods during pregnancy and AL. Conclusion The results suggest that maternal intake during pregnancy of allium vegetables, specifically garlic, is inversely associated with the development of AL in children ≤24 months old. On the other hand, consumption of high-fat dairy products is positively associated with AL in children ≤24 months old.
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Ugalde-Resano R, Gamboa-Loira B, Mérida-Ortega Á, Rincón-Rubio A, Flores-Collado G, Piña-Pozas M, López-Carrillo L. Exposure to Organochlorine Pesticides and Female Breast Cancer Risk According to Molecular Receptors Expression: a Systematic Review and Meta-analysis of Epidemiological Evidence. Curr Environ Health Rep 2023; 10:442-458. [PMID: 37639190 DOI: 10.1007/s40572-023-00408-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2023] [Indexed: 08/29/2023]
Abstract
PURPOSE OF REVIEW Organochlorine pesticides (OCP) have been proposed as potential mammary carcinogens since they interact with steroid signaling pathways. However, the epidemiological results are not conclusive. Most studies have evaluated breast cancer (BC) as a single entity without considering the different molecular expressions, including estrogen receptor (ER), progesterone receptor (PR), and HER2, that could differ in their association with these contaminants. Hence, we assessed the association between biological concentration of OCP and BC, according to its molecular receptor expression, based on a systematic review and meta-analysis. RECENT FINDINGS Of the 141 articles eligible for full-text review, nine met the inclusion criteria. The way in which molecular expression was reported was heterogeneous; therefore, the inclusion of studies in the meta-analysis was limited to eight articles. A negative association was identified for β-hexachlorocyclohexane and trans-nonachlor with ER + tumors and between hexachlorobenzene and ER - tumors. No associations were observed for p,p'-dichlorodiphenyldichloroethylene, cis-nonachlor, and dieldrin, and it was not possible to evaluate the associations between OCP with HER2 expression or triple-negative tumors due to lack of data. The results suggest that some OCP might be associated with BC depending on the expression of ER. However, the evidence is not conclusive due to the scarce data. We identified several methodological aspects to fill the gaps in knowledge and increase the comparability among studies.
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Muñoz-Aguirre P, Denova-Gutiérrez E, Pérez-Saldivar ML, Espinoza-Hernández LE, Dorantes-Acosta EM, Torres-Nava JR, Solís-Labastida KA, Paredes-Aguilera R, Velázquez-Aviña MM, Espinosa-Elizondo RM, Miranda-Madrazo MR, González-Ávila AI, Rodríguez-Villalobos LR, Dosta-Herrera JJ, Mondragón-García JA, Castañeda-Echevarría A, López-Caballero MG, Martínez-Silva SI, Rivera-González J, Hernández-Pineda NA, Flores-Botello J, Pérez-Gómez JA, Rodríguez-Vázquez MA, Torres-Valle D, Olvera-Durán JÁ, Martínez-Ríos A, García-Cortés LR, Almeida-Hernández C, Flores-Lujano J, Núñez-Enriquez JC, Mata-Rocha M, Rosas-Vargas H, Duarte-Rodríguez DA, Jiménez-Morales S, Mejía-Aranguré JM, López-Carrillo L. Maternal dietary patterns and acute leukemia in infants: results from a case control study in Mexico. Front Nutr 2023; 10:1278255. [PMID: 38024345 PMCID: PMC10680405 DOI: 10.3389/fnut.2023.1278255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Background Childhood cancer is the leading cause of disease-related mortality among children aged 5-14 years in Mexico, with acute leukemia being the most common cancer among infants. Examining the overall dietary patterns allows for a comprehensive assessment of food and nutrient consumption, providing a more predictive measure of disease risk than individual foods or nutrients. This study aims to evaluate the association between maternal dietary patterns during pregnancy and the risk of acute leukemia in Mexican infants. Methods A hospital-based case-control study was conducted, comparing 109 confirmed acute leukemia cases with 152 age-matched controls. All participants (≤24 months) were identified at hospitals in Mexico City between 2010 and 2019. Data on a posteriori dietary patterns and other relevant variables were collected through structured interviews and dietary questionnaires. Multivariate logistic regression was employed to estimate the association between maternal dietary patterns during pregnancy and the risk of acute leukemia in infants. Results The "Balanced & Vegetable-Rich" pattern, characterized by a balanced consumption of various food groups and higher vegetable intake, exhibited a negative association with acute leukemia when compared to the "High Dairy & Cereals" Pattern (adjusted odds ratio [OR] = 0.51; 95% confidence interval [CI]: 0.29, 0.90). We observed that mothers who gave birth to girls and adhered to a healthy dietary pattern during pregnancy exhibited significantly lower odds of their children developing AL compared to those who gave birth to boys [OR = 0.32 (95% CI 0.11, 0.97)]. Our results underscore the significance of maternal nutrition as a modifiable factor in disease prevention and the importance of prenatal health education.
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Blanco E, Algranti E, Cifuentes LA, López-Carrillo L, Mora AM, Rodríguez-Guzmán J, Rodríguez-Villamizar LA, Veiga LHS, Canelo-Aybar C, Nieto-Gutierrez W, Feliu A, Espina C, Ferreccio C. Latin America and the Caribbean Code Against cancer 1st edition: Environment, occupation, and cancer. Cancer Epidemiol 2023; 86 Suppl 1:102381. [PMID: 37852723 DOI: 10.1016/j.canep.2023.102381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/21/2023] [Accepted: 03/25/2023] [Indexed: 10/20/2023]
Abstract
Within the framework of the Latin America and Caribbean region (LAC) Code Against Cancer 1st edition, the current work presents recommendations to reduce exposure to environmental and occupational carcinogenic agents relevant for LAC. Using the methodology established by the International Agency for Research on Cancer (IARC) in the World Code Against Cancer Framework and experience from developing the European Code Against Cancer 4th edition, a working group of LAC cancer-prevention experts reviewed the list of Group I IARC carcinogenic agents, identified prevalent environmental and occupational exposures in the region, and proposed evidence-based cancer prevention recommendations suited to the epidemiological, socioeconomic, and cultural conditions of LAC countries. Two sets of recommendations were drafted: those targeting the general public and a second set for policymakers. Outdoor and indoor air pollution, ultra-violet radiation and occupational exposures to silica dust, asbestos, benzene, diesel, and welding fumes were identified as prevalent carcinogens in LAC and as agents that could be reduced or eliminated to prevent cancers. Recommendations for additional risk factors were not included due to insufficient data of their attributable burden in LAC (sunbeds, radon, aflatoxin), or lack of a clear preventive action to be taken by the individual (arsenic in drinking water, medical radiation), or lack of evidence of carcinogenicity effect (bisphenol A, phthalates, and pesticides). A broad consensus was reached on environmental and occupational carcinogenic exposures present throughout the LAC region and on individual-level and public policy-level recommendations to reduce or eliminate these exposures. Key educational content for the dissemination of these recommendations was also developed as part of LAC Code Against Cancer 1st Edition.
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Mérida-Ortega Á, Pérez-Saldivar ML, Espinoza-Hernández LE, Dorantes-Acosta EM, Torres-Nava JR, Solís-Labastida KA, Paredes-Aguilera R, Velázquez-Aviña MM, Espinosa-Elizondo RM, Miranda-Madrazo MR, González-Ávila AI, Rodríguez-Villalobos LR, Dosta-Herrera JJ, Mondragón-García JA, Castañeda-Echevarría A, López-Caballero MG, Martínez-Silva SI, Rivera-González J, Hernández-Pineda NA, Flores-Botello J, Pérez-Gómez JA, Rodríguez-Vázquez MA, Torres-Valle D, Olvera-Durán JÁ, Martínez-Ríos A, García‐Cortés LR, Almeida-Hernández C, Flores-Lujano J, Núñez-Enríquez JC, Mata-Rocha M, Rosas-Vargas H, Duarte-Rodríguez DA, Jiménez-Morales S, Mejía-Arangure JM, López-Carrillo L. A protective maternal nutrient concomitant intake associated with acute leukemia might be modified by sex, in children under 2 years. Front Oncol 2023; 13:1239147. [PMID: 37746300 PMCID: PMC10514356 DOI: 10.3389/fonc.2023.1239147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction Maternal dietary consumption during pregnancy has been inconclusively associated with acute leukemia (AL) in infants, probably because epidemiological evidence has emerged mainly from the analysis of one-by-one nutrient, which is not a real-life scenario. Our objective was to evaluate the association between AL in Mexican children under 2 years of age and their mothers' nutrients concomitant intake during pregnancy, as well as to explore whether there are differences between girls and boys. Methods We conducted a study of 110 cases of AL and 252 hospital-based controls in the Mexico City Metropolitan area from 2010 to 2019. We obtained information on maternal intake of 32 nutrients by a food frequency questionnaire and used weighted quantile sum regression to identify nutrient concomitant intakes. Results We found a concomitant intake of nutrients negatively associated with AL (OR 0.17; CI95% 0.03,0.88) only among girls; and we did not find a nutrient concomitant intake positively associated with AL. Discussion This is the first study that suggests nutrients that have been individually associated with AL are not necessarily the same in the presence of other nutrients (concomitant intake); as well as that maternal diet might reduce AL risk only in girls.
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Armenta-Guirado BI, González-Rocha A, Mérida-Ortega Á, López-Carrillo L, Denova-Gutiérrez E. Lifestyle Quality Indices and Female Breast Cancer Risk: A Systematic Review and Meta-Analysis. Adv Nutr 2023; 14:685-709. [PMID: 37085092 PMCID: PMC10334144 DOI: 10.1016/j.advnut.2023.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 03/14/2023] [Accepted: 04/18/2023] [Indexed: 04/23/2023] Open
Abstract
Breast cancer (BC) poses an important burden of disease, which probably could be reduced by adopting healthy lifestyles like healthy body weight, healthy diet, and physical activity, among others. Many studies have reported that adherence to healthy lifestyles may decrease BC risk. The main objective of this study was to estimate a summary association of studies evaluating a healthy lifestyle index and BC risk. A systematic review and meta-analysis following the Cochrane methodology were carried out. Observational studies, including healthy lifestyle indices and their association with BC, were searched from 4 databases. For the meta-analysis, random-effects model was used to evaluate overall BC risk, BC by molecular subtype and menopausal status. Thirty-one studies were included in the systematic review, and 29 studies in the meta-analysis. When the highest vs. the lowest category to a healthy lifestyle index were compared, the study identified a 20% risk reduction for BC in prospective studies (hazard ratio [HR] 0.80 95% CI: 0.78, 0.83) and an odds ratio (OR) of 0.74 (95% CI: 0.63, 0.86) for retrospective studies. The inverse association remained statistically significant when stratified by menopausal status, except for premenopausal BC in prospective studies. Furthermore, an inverse association was found for molecular subtypes estrogen receptor (ER+)/progesterone receptor (PR+): HR = 0.68 (95%CI: 0.63, 0.73), ER+/PR-: HR = 0.78 (95% CI: 0.67, 0.90) and ER-/PR-: HR = 0.77 (95% CI: 0.64, 0.92). Most studies scored at a low risk of bias and a moderate score for the certainty of the evidence. Adherence to a healthy lifestyle reduces the risk of BC, regardless of its molecular subtypes, which should be considered a priority to generate recommendations for BC prevention at a population level. International prospective register of systematic reviews (PROSPERO) ID: CRD42021267759.
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Ba DM, Ssentongo P, Pelucchi C, Negri E, Palli D, Ferraroni M, Zhang ZF, Yu GP, Tsugane S, Hidaka A, Hamada GS, Zaridze D, Maximovich D, Obón-Santacana M, Álvarez-Álvarez L, Vioque J, de la Hera MG, López-Carrillo L, López-Cervantes M, Mu L, Lagiou A, Lagiou P, Boffetta P, Camargo MC, Curado MP, Lunet N, La Vecchia C, Muscat J. Mushroom consumption and risk of gastric cancer: a pooled analysis within the stomach cancer pooling project and a combined meta-analysis with other observational studies. Eur J Cancer Prev 2023; 32:222-228. [PMID: 36912187 PMCID: PMC10073218 DOI: 10.1097/cej.0000000000000754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Edible mushrooms have high concentrations of vitamins and minerals. They are considered 'functional foods' for their disease-prevention properties. Mushroom consumption may reduce the risk of gastric cancer, the fifth most common cancer worldwide. We investigated the association between mushroom consumption and gastric cancer risk in a pooled analysis within the Stomach Cancer Pooling (StoP) Project and in a meta-analysis that also included previously published studies. A total of 3900 gastric cancer cases and 7792 controls from 11 studies were included in the StoP analysis. Mushroom consumption was measured using food frequency questionnaires. Higher mushroom consumption was associated with a lower risk of gastric cancer [relative risk (RR) for the highest vs. lowest consumption categories, 0.82; 95% confidence interval (CI), 0.71-0.95]. The corresponding RRs were 0.59 (95% CI, 0.26-1.33) in a meta-analysis of four previously published studies and 0.77 for all studies combined (95% CI, 0.63-0.95; n = 15 studies). In geographic subgroup analysis, the pooled risk in Western Pacific countries was (RR, 0.59; 95% CI, 0.40-0.87; n = 6). The stronger effect in Asian countries may reflect high level of antioxidants in mushroom species consumed in Asia.
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Collatuzzo G, Negri E, Pelucchi C, Bonzi R, Turati F, Rabkin CS, Liao LM, Sinha R, Palli D, Ferraroni M, López-Carrillo L, Lunet N, Morais S, Albanes D, Weinstein SJ, Parisi D, Zaridze D, Maximovitch D, Dierssen-Sotos T, Jiménez-Moleón JJ, Vioque J, Garcia de la Hera M, Curado MP, Dias-Neto E, Hernández-Ramírez RU, López-Cervantes M, Ward MH, Tsugane S, Hidaka A, Lagiou A, Lagiou P, Zhang ZF, Trichopoulou A, Karakatsani A, Camargo MC, La Vecchia C, Boffetta P. Yoghurt Intake and Gastric Cancer: A Pooled Analysis of 16 Studies of the StoP Consortium. Nutrients 2023; 15:nu15081877. [PMID: 37111097 PMCID: PMC10147010 DOI: 10.3390/nu15081877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/13/2023] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND Yoghurt can modify gastrointestinal disease risk, possibly acting on gut microbiota. Our study aimed at exploring the under-investigated association between yoghurt and gastric cancer (GC). METHODS We pooled data from 16 studies from the Stomach Cancer Pooling (StoP) Project. Total yoghurt intake was derived from food frequency questionnaires. We calculated study-specific odds ratios (ORs) of GC and the corresponding 95% confidence intervals (CIs) for increasing categories of yoghurt consumption using univariate and multivariable unconditional logistic regression models. A two-stage analysis, with a meta-analysis of the pooled adjusted data, was conducted. RESULTS The analysis included 6278 GC cases and 14,181 controls, including 1179 cardia and 3463 non-cardia, 1191 diffuse and 1717 intestinal cases. The overall meta-analysis revealed no association between increasing portions of yoghurt intake (continuous) and GC (OR = 0.98, 95% CI = 0.94-1.02). When restricting to cohort studies, a borderline inverse relationship was found (OR = 0.93, 95% CI = 0.88-0.99). The adjusted and unadjusted OR were 0.92 (95% CI = 0.85-0.99) and 0.78 (95% CI = 0.73-0.84) for any vs. no yoghurt consumption and GC risk. The OR for 1 category of increase in yoghurt intake was 0.96 (95% CI = 0.91-1.02) for cardia, 1.03 (95% CI = 1.00-1.07) for non-cardia, 1.12 (95% CI = 1.07-1.19) for diffuse and 1.02 (95% CI = 0.97-1.06) for intestinal GC. No effect was seen within hospital-based and population-based studies, nor in men or women. CONCLUSIONS We found no association between yoghurt and GC in the main adjusted models, despite sensitivity analyses suggesting a protective effect. Additional studies should further address this association.
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Flores-Collado G, Mérida-Ortega Á, Ramirez N, López-Carrillo L. Urinary cadmium concentrations and intake of nutrients, food groups and dietary patterns in women from Northern Mexico. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:247-261. [PMID: 36649226 PMCID: PMC10431751 DOI: 10.1080/19440049.2022.2157050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/02/2022] [Accepted: 12/02/2022] [Indexed: 01/18/2023]
Abstract
Cadmium (Cd) is a toxic metal found in some foods. There is limited evidence about the relationship of Cd exposure with nutrient and food groups consumption, and almost no information regarding dietary patterns. The objective was to evaluate the association between diet and urinary Cd, and to explore whether metal concentrations vary according to the intake of some nutrients. Urinary Cd concentrations of 891 female residents of northern Mexico were determined by tandem mass spectrometry. We obtained food consumption through a food frequency questionnaire and we used previously defined food groups and estimated dietary patterns by factor analysis. We found positive associations between Cd and daily consumption of non-starchy vegetables (ß = 0.067, 95% CI 0.030, 0.1023), legumes (ß = 0.139, 95% CI 0.065, 0.213) and processed meats (ß = 0.163, 95% CI 0.035.0.291), as well as the Western (ß = 0.083, 95% CI: 0.027.0.139) and Prudent dietary patterns (ß = 0.035, 95% CI: -0.020, 0.091). In contrast, we observed a negative association with the vegetable oil group (ß = -0.070, 95% CI -0.125, -0.014). In addition, we found higher concentrations of Cd in women under 50 years of age with a lower iron intake than recommended. Food is a source of exposure to this metal and at the same time provides nutrients that modulate its metabolism. It is important to generate dietary guidelines to reduce the health effects of Cd exposure.
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Gamboa-Loira B, Mérida-Ortega Á, Rothenberg SJ, Cebrián ME, López-Carrillo L. Metal exposure and breast cancer among Northern Mexican women: assessment of genetic susceptibility. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:89002-89013. [PMID: 35841505 DOI: 10.1007/s11356-022-21067-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
This study aims to assess breast cancer (BC) association with metals and whether polymorphisms in CYP1A1, CYP1B1, GSTM1 and GSTT1 act as confounders or as modifiers of those relationships. We performed a secondary analysis of 499 histologically confirmed BC cases and the same number of age-matched population controls. We measured urinary concentrations of 18 metals with mass spectrometry. We determined the genetic variants of interest by allelic discrimination and multiplex PCR. After adjusting for covariates, we found BC negatively associated with arsenic, barium, cobalt, copper, magnesium, molybdenum and vanadium concentrations and positively with those of caesium, manganese, tin and thallium. Most associations remained after stratifying by the genetic variants. We identified that polymorphisms in CYP1B1, CYP1A1 and GSTM1 genes interacted with some metals on BC: interaction p-values CYP1B1 G119T × antimony= 0.036, CYP1B1 G119T × cobalt <0.001, CYP1B1 G119T × tin= 0.032, CYP1A1 A4889G × aluminium= 0.018, CYP1A1 A4889G × arsenic= 0.031, CYP1A1 A4889G × nickel= 0.036, CYP1A1 A4889G × vanadium= 0.031 and GSTM1 deletion × barium= 0.035. Exposure to various individual metals, along with genetic characteristics may contribute to BC development. Further studies are warranted to confirm our results.
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Ferreira-Guerrero EE, Galván-Portillo MV, Ángeles-Llerenas A, Bahena-Botello A, Llano-Tapia GC, López-Carrillo L, Lazcano-Ponce E, Rodríguez MH. Towards a unified curriculum system based on a public health holistic approach. Renovation of the academic programs at the School of Public Health of Mexico. SALUD PUBLICA DE MEXICO 2022; 64:624-633. [PMID: 36750078 DOI: 10.21149/13849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 10/13/2022] [Indexed: 01/20/2023] Open
Abstract
Public health training cannot be practiced in isolation, but rather within the framework of substantive conceptual visions, the organizational structure and teaching culture in a broad sense. The School of Public Health of Mexico (ESPM), in the mist of its 100th anniversary, is implementing an educational restructure with the guidance of conceptual and ethical principles. The restructure of the academic pro-grams will follow a constructivist pedagogical model, based on renewed institutional practices that integrates research, teaching and community outreach, making for truly transfor-mative learning. The new design of the whole structure of its academic programs has the objetive of making them flexible, less technical-based but more practical, and a within an uni-fied curricular system that articulates and allows continuity between master's degrees and doctorates programs. In the new structure, the curriculum will have a common core for all the academic programs, emerging from the study of the essential bases of public health, human rights, including gender and social perspectives, principles of global health, ethics of public health practice, environmental and animal health inferences and community outreach in the form of social retribution. The Institute's research groups will be the functional units for investigation and teaching, thus students will be integrated into these at an early stage, under the guidance of a tutor. In this context, the requirements for a comprehensive, unifying and at the same time flexible cur-riculum will support training of Public Health with a holistic approach. The current programs were analyzed including the review of their courses, regarding the pertinence of their contents and proposed competencies. We present herein a description of these observations, and propose a new com-mon core (conceptual-operative) with compulsory courses as the base for all programs. The participation of all academic bodies in reviewing the proposed new common core, as well as the syllabus and courses, identified those that are essential in each program's study concentration area, is indicated.
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Rangel-Moreno K, Mérida-Ortega Á, Gamboa-Loira B, Flores-García MK, Rothenberg SJ, López-Carrillo L. Dietary contribution to total urinary arsenic in Mexican women. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:1453-1462. [PMID: 35793148 DOI: 10.1080/19440049.2022.2093982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Exposure to inorganic arsenic (iAs) damages health in many ways. The main routes of human exposure are consumption of contaminated water and diet, but evidence regarding the dietary contribution of iAs is limited. The objective of this work was to determine the foods and beverages that contribute to urinary total arsenic levels (TAs). This is a secondary analysis of an original study of breast cancer cases and population controls carried out in northern Mexico during the period 2007-2011, from which 1,462 women without a history of diabetes were selected. We estimated the consumption of the food and beverage groups with a frequency questionnaire. We measured the concentrations of urinary iAs metabolites by high performance liquid chromatography inductively coupled plasma mass spectrometry (HPLC-ICP-MS). Total arsenic ranged from 0.5 to 2,360 µg/g creatinine. After adjusting for covariates, we observed a positive association between TAs (with arsenobetaine) with non-bottled drinking water intake, as well as the consumption of root vegetables, vegetables and fruits rich in water, eggs, fish and shellfish. Our findings highlight the relevance of water consumption and some foods for TAs exposure. Food quality monitoring deserves attention in high-risk regions of arsenic contamination.
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Flores-García MK, Mérida-Ortega Á, Denova-Gutiérrez E, Rothenberg SJ, López-Carrillo L. "Western" and "Prudent" dietary patterns are associated with breast cancer among Mexican pre- and post-menopausal women. Nutr Res 2022; 105:138-146. [DOI: 10.1016/j.nutres.2022.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 11/24/2022]
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Mérida-Ortega Á, Rothenberg SJ, Cebrián ME, López-Carrillo L. Breast cancer and urinary metal mixtures in Mexican women. ENVIRONMENTAL RESEARCH 2022; 210:112905. [PMID: 35217012 DOI: 10.1016/j.envres.2022.112905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/01/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Humans are environmentally exposed to many metals throughout their lives. Simultaneous exposure to several metals could result in synergistic or antagonistic toxicological effects among them; however, the information on exposure to mixtures of metals and breast cancer (BC) is scarce. The objective of this report was to compare metals considered human carcinogens, individually and as mixtures, in women with and without BC. This is a secondary analysis of a population-based case-control study that was carried out from 2007 to 2011 in Northern Mexico. A total of 499 histologically confirmed BC cases and 499 controls were included. Information about sociodemographic, lifestyle and reproductive characteristics was obtained by in-person interviews. Urinary concentrations of aluminum (Al), cadmium (Cd), chromium (Cr), nickel (Ni), lead (Pb), antimony (Sb), cobalt (Co), molybdenum (Mo), tin (Sn), and vanadium (V) were determined by inductively coupled plasma triple quadrupole. Metal mixtures were identified by principal component analysis with creatinine-corrected metals. Over 90% of subjects had metal measurements above the detection limit except tin (86%) and antimony (78.4%). After adjusting by selected covariables, we observed that the individual urinary concentrations of V, Co, and Mo were lower among cases compared to controls; in contrast to Sn that had higher concentrations. We identified two principal component mixtures with opposite relationships with BC: Cr, Ni, Sb, Al, Pb and Sn (OR = 1.15; CI95% 1.06,1.25) and Mo and Co (OR = 0.56; CI95% 0.49,0.64). This is the first study that identified urinary metal mixtures that differed between women with and without BC. Our results warrant confirmation in further prospective epidemiological studies. In addition, the elucidation of underlying mechanisms of metal interactions on BC risk deserves further research.
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Rangel-Moreno K, Gamboa-Loira B, López-Carrillo L, Cebrián ME. Prevalence of type 2 diabetes mellitus in relation to arsenic exposure and metabolism in Mexican women. ENVIRONMENTAL RESEARCH 2022; 210:112948. [PMID: 35189103 DOI: 10.1016/j.envres.2022.112948] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Experimental studies have shown the diabetogenic potential of inorganic arsenic (iAs); however, the epidemiological evidence is still inconclusive. This could be explained by differences in exposure, metabolism efficiency, nutritional and genetic factors. OBJECTIVE To evaluate the association between type 2 diabetes mellitus (T2DM) prevalence with arsenic exposure and metabolism, considering one-carbon metabolism nutrient intake and arsenite methyltransferase (AS3MT) polymorphisms. METHODS From healthy controls of a case control study for female breast cancer in northern Mexico, 227 self-reported diabetic women were age-matched with 454 non-diabetics. Participants were interviewed about dietary, sociodemographic and clinical characteristics. Urinary iAs metabolites were determined by HPLC-ICP-MS, methylation efficiency parameters were calculated, and AS3MT c.860 T > C and c.529-56G > C genotypes were determined. Unconditional logistic regression models were used to evaluate associations. RESULTS Total arsenic in urine (TAs) ranged from 0.73 to 248.12 μg/L with a median of 10.48 μg/L. In unadjusted analysis, TAs (μg/g) was significantly higher in cases than controls, but not when expressed as TAs (μg/L). Cases had significantly lower urinary monomethylarsonic acid percentage (%MMA), first methylation ratio (FMR), creatinine, and choline and selenium intakes. In multi-adjusted models and in women without HTA history T2DM showed significant positive associations with %iAs and FMR, respectively, and a significant negative association with %DMA. In participants with HTA history there was a marginal positive association (p = 0.08) between T2DM and TAs concentrations (μg/g) without other significant associations. CONCLUSIONS Our results support an association between T2DM prevalence and iAs metabolism but not with urinary arsenic levels. However, elucidation of the interplay among iAs metabolism, T2DM and HTA merit further studies.
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Dalmartello M, Turati F, Zhang ZF, Lunet N, Rota M, Bonzi R, Galeone C, Martimianaki G, Palli D, Ferraroni M, Yu GP, Morais S, Malekzadeh R, López-Carrillo L, Zaridze D, Maximovitch D, Aragonés N, Fernández-Tardón G, Martin V, Vioque J, Garcia de la Hera M, Curado MP, Coimbra FJF, Assumpcao P, Pakseresht M, Hu J, Hernández-Ramírez RU, Ward MH, Pourfarzi F, Mu L, Tsugane S, Hidaka A, Lagiou P, Lagiou A, Trichopoulou A, Karakatsani A, Boffetta P, Camargo MC, Negri E, La Vecchia C, Pelucchi C. Allium vegetables intake and the risk of gastric cancer in the Stomach cancer Pooling (StoP) Project. Br J Cancer 2022; 126:1755-1764. [PMID: 35210588 PMCID: PMC9174191 DOI: 10.1038/s41416-022-01750-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 01/21/2022] [Accepted: 02/09/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The role of allium vegetables on gastric cancer (GC) risk remains unclear. METHODS We evaluated whether higher intakes of allium vegetables reduce GC risk using individual participant data from 17 studies participating in the "Stomach cancer Pooling (StoP) Project", including 6097 GC cases and 13,017 controls. Study-specific odds ratios (ORs) were pooled using a two-stage modelling approach. RESULTS Total allium vegetables intake was inversely associated with GC risk. The pooled OR for the highest versus the lowest study-specific tertile of consumption was 0.71 (95% confidence interval, CI, 0.56-0.90), with substantial heterogeneity across studies (I2 > 50%). Pooled ORs for high versus low consumption were 0.69 (95% CI, 0.55-0.86) for onions and 0.83 (95% CI, 0.75-0.93) for garlic. The inverse association with allium vegetables was evident in Asian (OR 0.50, 95% CI, 0.29-0.86) but not European (OR 0.96, 95% CI, 0.81-1.13) and American (OR 0.66, 95% CI, 0.39-1.11) studies. Results were consistent across all other strata. CONCLUSIONS In a worldwide consortium of epidemiological studies, we found an inverse association between allium vegetables and GC, with a stronger association seen in Asian studies. The heterogeneity of results across geographic regions and possible residual confounding suggest caution in results interpretation.
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Vázquez-Salas RA, Torres-Sánchez L, Galván-Portillo M, López-Carrillo L, Moreno-Macías H, Rodríguez-Covarrubias F, Romero-Martínez M, Jiménez-Ríos MÁ. Association between life-course leisure-time physical activity and prostate cancer. SALUD PUBLICA DE MEXICO 2022; 64:169-178. [DOI: 10.21149/12540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 08/27/2021] [Indexed: 11/06/2022] Open
Abstract
Objective. To evaluate the association between life-course leisure-time physical activity (PA) and prostate cancer (PC) among males living in Mexico City. Materials and methods. Information from 394 incident PC cases and 794 population controls matched by age (± 5 years), was analyzed. Using leisure-time PA information at different life stages, life-course PA patterns were constructed. The association between PA and PC was estimated using an unconditional logistic regression model. Results. Three life-course PA patterns were identified: low PA (71.0%), moderate PA (22.0%), and high PA (7.0%); this last pattern was characterized by higher levels and consistent PA practice. Compared with inactive males, those in the high PA pattern (OR: 0.50; 95%CI: 0.26-0.93) had significantly lower PC odds. Conclusion. Intense and regular PA could reduce the possibility of PC. These results are in accordance with PA World Health Organization recommendations.
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Martimianaki G, Bertuccio P, Alicandro G, Pelucchi C, Bravi F, Carioli G, Bonzi R, Rabkin CS, Liao LM, Sinha R, Johnson K, Hu J, Palli D, Ferraroni M, Lunet N, Morais S, Tsugane S, Hidaka A, Hamada GS, López-Carrillo L, Hernández-Ramírez RU, Zaridze D, Maximovitch D, Aragonés N, Martin V, Ward MH, Vioque J, de la Hera MG, Zhang ZF, Kurtz RC, Lagiou P, Lagiou A, Trichopoulou A, Karakatsani A, Malekzadeh R, Camargo MC, Curado MP, Boccia S, Boffetta P, Negri E, Vecchia CL. Coffee consumption and gastric cancer: a pooled analysis from the Stomach cancer Pooling Project consortium. Eur J Cancer Prev 2022; 31:117-127. [PMID: 34545022 PMCID: PMC8972971 DOI: 10.1097/cej.0000000000000680] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study aimed to evaluate and quantify the relationship between coffee and gastric cancer using a uniquely large dataset from an international consortium of observational studies on gastric cancer, including data from 18 studies, for a total of 8198 cases and 21 419 controls. METHODS A two-stage approach was used to obtain the pooled odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) for coffee drinkers versus never or rare drinkers. A one-stage logistic mixed-effects model with a random intercept for each study was used to estimate the dose-response relationship. Estimates were adjusted for sex, age and the main recognized risk factors for gastric cancer. RESULTS Compared to never or rare coffee drinkers, the estimated pooled OR for coffee drinkers was 1.03 (95% CI, 0.94-1.13). When the amount of coffee intake was considered, the pooled ORs were 0.91 (95% CI, 0.81-1.03) for drinkers of 1-2 cups per day, 0.95 (95% CI, 0.82-1.10) for 3-4 cups, and 0.95 (95% CI, 0.79-1.15) for five or more cups. An OR of 1.20 (95% CI, 0.91-1.58) was found for heavy coffee drinkers (seven or more cups of caffeinated coffee per day). A positive association emerged for high coffee intake (five or more cups per day) for gastric cardia cancer only. CONCLUSIONS These findings better quantify the previously available evidence of the absence of a relevant association between coffee consumption and gastric cancer.
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Gamboa-Loira B, López-Carrillo L, Mar-Sánchez Y, Stern D, Cebrián ME. Epidemiologic evidence of exposure to polycyclic aromatic hydrocarbons and breast cancer: A systematic review and meta-analysis. CHEMOSPHERE 2022; 290:133237. [PMID: 34929281 DOI: 10.1016/j.chemosphere.2021.133237] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 12/05/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Breast cancer (BC) is the most frequently diagnosed cancer in women. However, only 58% of cases have been associated with known risk factors (reproductive, hormonal, lifestyles, and genetic), and the rest to unknown causes. Nevertheless, growing evidence suggests that exposure to environmental contaminants is an important risk factor for BC. Polycyclic aromatic hydrocarbons (PAHs) are formed during organic matter combustion, including smoking, grilled meat, and fuels, and are important carcinogenic constituents of environmental pollution. We examined the information generated by epidemiological studies evaluating the association between BC and PAHs exposure from multiple sources. Our work was conducted according to Conducting Systematic Reviews and Meta-Analyses of Observational Studies of Etiology (COSMOS-E) guidelines. We searched PubMed, Web of Science, and Scopus from January 2000 to December 2019. A total of 124 records were identified, and only 23 articles met all inclusion criteria. Occupational and/or environmental exposure to PAHs was significantly associated with BC, irrespective of exposure being assessed by direct or indirect methods. CYP1A1 and CYP1B1 adverse polymorphisms, familial BC history and smoking status, significantly strengthened the association between PAHs exposure and BC, whereas high fruit and vegetable intake had antagonistic associations. The positive relationships obtained in the studies here reviewed indicated that PAHs exposure is a risk factor for BC. Research needs include the improvement of exposure assessment, particularly identification of specific PAHs, reconstruction of time-varying and distant past exposures and further studies on the interaction between known BC factors and modifiable diet and life-style factors allowing BC prevention and control.
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Mérida-Ortega Á, López-Carrillo L, Rangel-Moreno K, Ramirez N, Rothenberg SJ. Tobacco Smoke Exposure and Urinary Cadmium in Women from Northern Mexico. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:12581. [PMID: 34886306 PMCID: PMC8656637 DOI: 10.3390/ijerph182312581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 11/20/2022]
Abstract
Cadmium (Cd), a carcinogenic metal also related to reproductive and cardiovascular diseases, is contained in tobacco and elevated concentrations of it in humans have been consistently associated with first-hand tobacco smoke; however, there is scarce and inconclusive evidence of the relationship between Cd and secondhand smoke (SHS) exposure. Our aim was to evaluate the association between exposure to tobacco, both active and SHS, with urinary Cd concentrations in Mexican women. In a cross-sectional analysis that included 998 women living in northern Mexico, we measured the concentration of creatinine-adjusted urinary Cd (µg-cadmium/g-creatinine) using inductively coupled plasma triple quadrupole (ICP-QQQ) in tandem mass spectrometry mode (MS/MS). We gathered tobacco smoking information through an in-person interview and formed seven groups: non-smokers without SHS exposure; non-smokers with SHS exposure; ex-smokers without SHS exposure <1 year of quitting; ex-smokers without SHS exposure ≥1 year of quitting, ex-smokers with SHS exposure <1 year of quitting; ex-smokers with SHS exposure ≥1 year of quitting and current smokers. The interview also yielded sociodemographic characteristics. We used linear multivariable regression models to estimate the association between Cd concentrations and tobacco smoke exposure. Compared to non-smokers without SHS exposure, we found higher Cd concentrations in ex-smokers with SHS exposure <1 year of quitting and current smokers (adjusted geometric means 0.51 vs. 1.01 and 0.69 µg-cadmium/g-creatinine, respectively). Our results do not support a conclusion that SHS exposure is a source of Cd body burden.
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Morais S, Peleteiro B, Araújo N, Malekzadeh R, Ye W, Plymoth A, Tsugane S, Hidaka A, Shigueaki Hamada G, López-Carrillo L, Zaridze D, Maximovich D, Aragonés N, Castaño-Vinyals G, Pakseresht M, Hernández-Ramírez RU, López-Cervantes M, Leja M, Gasenko E, Pourfarzi F, Zhang ZF, Yu GP, Derakhshan MH, Pelucchi C, Negri E, La Vecchia C, Lunet N. Identifying the profile of Helicobacter pylori negative gastric cancers: a case only analysis within the Stomach cancer Pooling (StoP) Project. Cancer Epidemiol Biomarkers Prev 2021; 31:200-209. [PMID: 34728467 DOI: 10.1158/1055-9965.epi-21-0402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/25/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The prevalence of Helicobacter pylori negative gastric cancer (HpNGC) can be as low as 1%, when infection is assessed using more sensitive tests or considering the presence of gastric atrophy. HpNGC may share a high-risk profile contributing to the occurrence of cancer in the absence of infection. We estimated the proportion of HpNGC, using different criteria to define infection status, and compared HpNGC and positive cases regarding gastric cancer risk factors. METHODS Cases from 12 studies from the Stomach cancer Pooling (StoP) Project providing data on H. pylori infection status determined by serological test were included. HpNGC was reclassified as positive (eight studies) when cases presented CagA markers (four studies), gastric atrophy (six studies), or advanced stage at diagnosis (three studies), and were compared with positive cases. A two-stage approach (random-effects models) was used to pool study-specific prevalence and adjusted odds ratios (ORs). RESULTS Among non-cardia cases, the pooled prevalence of HpNGC was 22.4% (n=166/853) and decreased to 7.0% (n=55) when considering CagA status; estimates for all criteria were 21.8% (n=276/1325) and 6.6% (n=97), respectively. HpNGC had a family history of gastric cancer more often (OR=2.18, 95% confidence interval [CI]:1.03-4.61) and were current smokers (OR=2.16, 95%CI:0.52-9.02). CONCLUSION This study found a low prevalence of HpNGC, who are more likely to have a family history of gastric cancer in first-degree relatives. IMPACT Our results support that H. pylori infection is present in most non-cardia gastric cancers, and suggest that HpNGC may have distinct patterns of exposure to other risk factors.
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Collatuzzo G, Pelucchi C, Negri E, López-Carrillo L, Tsugane S, Hidaka A, Shigueaki Hamada G, Hernández-Ramírez RU, López-Cervantes M, Malekzadeh R, Pourfarzi F, Mu L, Zhang ZF, Lunet N, La Vecchia C, Boffetta P. Exploring the interactions between Helicobacter pylori (Hp) infection and other risk factors of gastric cancer: A pooled analysis in the Stomach cancer Pooling (StoP) Project. Int J Cancer 2021; 149:1228-1238. [PMID: 33990950 DOI: 10.1002/ijc.33678] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 12/12/2022]
Abstract
Helicobacter pylori (Hp) is crucial in gastric carcinogenesis, but infection alone is not a sufficient cause, and the interaction between Hp infection and other risk factors has not been adequately studied. We conducted a pooled analysis of seven case-control studies from the Stomach cancer Pooling (StoP) Project, comprising 1377 cases and 2470 controls, to explore the interaction among Hp infection and tobacco smoking, alcohol drinking, socioeconomic status (SES) and dietary salt intake on the risk of gastric cancer. We estimated summary odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) by multivariate unconditional logistic regression. The analysis showed no consistent interaction between Hp infection and cigarette smoking, while interaction was more than multiplicative for alcohol drinking (OR = 1.38, 95% CI: 1.07-1.77, P-interaction 0.02) and high intake of salt (OR = 2.62, 95% CI: 1.88-3.65, P-interaction = 0.04). The interaction with SES followed the multiplicative model (P = 0.49), resulting in a weakening among infected individuals of the protective effect of high SES among observed Hp-negative individuals. The interactions found were more pronounced in subjects with history of peptic ulcer. The interactions with Hp infection were stronger for cigarette smoking and dietary salt in the case of noncardia cancer, and for alcohol and SES in the case of cardia cancer. No differences were found when stratifying for histologic type. This large-scale study aimed to quantify the interaction between Hp infection and other modifiable risk factors of gastric cancer revealed that the benefit of combined Hp eradication and lifestyle modification on gastric cancer prevention may be larger than commonly appreciated.
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Galván-Portillo M, Vázquez-Salas RA, Hernández-Pérez JG, Blanco-Muñoz J, López-Carrillo L, Torres-Sánchez L. Dietary flavonoid patterns and prostate cancer: evidence from a Mexican population-based case-control study. Br J Nutr 2021; 127:1-9. [PMID: 34256878 DOI: 10.1017/s0007114521002646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Flavonoids are a broad group of bioactive compounds with anticarcinogenic effects on the prostate that have been scarcely evaluated in Latin American populations. Our objective was to evaluate the association between dietary patterns of flavonoid intake and prostate cancer (PC) in a population-based case-control study carried out in Mexico City. Based on a semi-quantitative FFQ with a frame reference of 3 years before diagnosis or interview, we used an updated database for estimating the daily intake (mg/d) of flavones, flavonols and flavanols for 395 confirmed incident PC cases and 797 population controls matched by age (± 5 years). Histological PC differentiation was evaluated using the Gleason score at diagnosis. Flavonoid dietary intake patterns (FDIP) were determined through principal component analysis, and their association with PC was estimated using logistic regression models. Three FDIP were identified: gallate pattern (GP) characterised by (-)-epicatechin-3-O-gallate, (-)-epigallocatechin-3-O-gallate and (+)-gallocatechin; luteolin pattern (LP) characterised by luteolin and (-)-epigallocatechin-3-O-gallate; and a mixed pattern (MP) that included (+)-catechin, (-)-epicatechin and quercetin. A higher GP (ORT3 v.T1 = 0·47; 95 % CI 0·33, 0·66) and LP intake (ORT3 v. T1 = 0·39; 95 % CI 0·27, 0·59) were associated with a decreased PC likelihood. In contrast, a higher MP intake (ORT3 v. T1 = 2·32; 95 % CI 1·67, 3·23) increased PC likelihood. The possible differential and synergistic anticarcinogenic role of flavonoid compounds in PC deserves further study.
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Shanmugam H, Mérida-Ortega Á, Cebrián ME, Gamboa-Loira B, López-Carrillo L. Dietary fiber intake and urinary creatinine: methodological implications for epidemiological studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:29643-29649. [PMID: 33569685 DOI: 10.1007/s11356-021-12379-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
Creatinine values are used to estimate renal function and to correct for urinary dilution in exposure assessment studies. Interindividual variability in urinary creatinine (UCR) is determined positively by protein intake and negatively by age and diabetes. These factors, among others, need to be accounted for, to increase comparability throughout epidemiological studies. Recently, dietary fiber has been shown to improve renal function. This study aims to evaluate dietary fiber intake relationship with UCR and its methodological implications for studies using UCR-corrected measurements. In a cross-sectional study, we analyzed information regarding UCR, dietary fiber, age, and other UCR-related factors in 801 women residing in Northern Mexico during 2007-2009. The median fiber intake in this population was 33.14 g/day, above the adequate intake level for women > 18 years. We estimated an age-adjusted increase of 10.04 mg/dL UCR for a 10 g/day increase in dietary fiber intake. The main dietary sources of fiber in this population were corn tortillas, raw onions, flour tortillas, and beans. Our results suggest that epidemiological studies adjusting analytes by UCR should also consider controlling dietary fiber intake to improve the comparability of creatinine-corrected values and associations across different populations, such as those in Mexico and Latin America, where protein and fiber intake vary significantly.
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Gamboa-Loira B, Cebrián ME, López-Carrillo L. Physical activity, body mass index and arsenic metabolism among Mexican women. ENVIRONMENTAL RESEARCH 2021; 195:110869. [PMID: 33581084 DOI: 10.1016/j.envres.2021.110869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND In some epidemiological studies, a positive association of body mass index (BMI) with inorganic arsenic (iAs) metabolism parameters (percentage dimethylarsinic acid [%DMA] and secondary methylation index [SMI]) has been found. In iAs metabolism, S-Adenosyl methionine is converted to S-Adenosyl homocysteine. Sedentarism has been associated with a higher risk of hyperhomocysteinemia. Physical activity has shown an inconsistent negative association with BMI. Therefore, our objective was to evaluate whether physical activity is associated to iAs metabolism independently of BMI. METHODS We performed a cross-sectional secondary analysis on 800 non-diabetic women, ≥18 years, who participated as population controls in a previous study on breast cancer in northern Mexico. Participants were interviewed about physical activity during their lifetime, and their weight and size were obtained. Urinary arsenic metabolites concentrations were determined by high performance liquid chromatography coupled with mass spectrometry. RESULTS In the study population, total arsenic ranged from 0.71 to 303.29 μg/L, and the lifetime average physical activity from 0 to 788.40 min/week. BMI was significantly and negatively associated with percentage monomethylarsonic acid (%MMA) and primary methylation index (PMI), and positively associated with %DMA, SMI and TMI, respectively. Likewise, physical activity was negatively associated with %iAs and %MMA, and positively associated with %DMA, SMI and TMI. These results remained after BMI was adjusted for physical activity and viceversa. CONCLUSION This study confirms the relationship between BMI and iAs metabolism parameters and provides new evidence on the association between physical activity and iAs metabolism.
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López-Carrillo L, Mérida-Ortega Á, Gómez-Ruiz H, Hernández-Garciadiego L, Gamboa-Loira B. Exposure to bisphenol A and breast cancer risk in northern Mexican women. Int Arch Occup Environ Health 2021; 94:699-706. [PMID: 33392751 DOI: 10.1007/s00420-020-01590-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 10/06/2020] [Indexed: 12/09/2022]
Abstract
OBJECTIVE To evaluate the association between BC and urinary concentrations of free-bisphenol A (BPA-F), the biological form of BPA, among women residing in Northern Mexico. METHODS The population under study comprised 394 histologically confirmed BC cases and 404 age-matched controls. Women were interviewed face to face about their sociodemographic and reproductive characteristics. BPA-F was determined by high-pressure liquid chromatography equipped with a fluorescence detector (HPLC/FLD). Logistic regression models were used to estimate the adjusted BC risk in relation to BPA-F. RESULTS BPA-F geometric mean was significantly higher among cases compared to controls (3.16 μg/L in cases and 2.47 μg/L in controls). A significant adjusted BC odds ratio of 2.31 (95% CI: 1.43-3.74) was estimated for the highest category of BPA-F compared to the lowest category. CONCLUSION BPA-F may be an environmental cofactor of BC. Since this is the first report on BPA-F association with BC, our results need to be replicated.
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Flores-García MK, Mérida-Ortega Á, Denova-Gutiérrez E, López-Carrillo L. Dietary Patterns and Breast Cancer Risk in Women from Northern Mexico. Nutr Cancer 2020; 73:2763-2773. [PMID: 33356597 DOI: 10.1080/01635581.2020.1860241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We evaluated the association between dietary patterns and breast cancer (BC) subtypes among women from Northern Mexico. From a study of incident cases and population controls that was carried out from 2007 to 2011, a subsample of 509 cases matched 1:1 by age with 509 controls was selected. Information about expression of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor 2 (HER2) was available from medical records to classify BC on luminal (ER + and/or PR+/HER2-), HER2+ (ER+/- and/or PR+/-/HER2+), or triple negative (ER- and PR-/HER2-). Dietary information was gathered using a semiquantitative food frequency questionnaire and a factor analysis was used to obtain dietary patterns. The association between each dietary pattern and BC molecular subtypes was assessed through conditional logistic regression models. Two dietary patterns were identified. The first (mainly characterized by meat, high fat, and sugary cereals) was positively associated with BC (odds ratio, OR = 12.62; 95% CI: 7.42, 21.45); the second (consisting of corn, legumes, and other vegetables) was inversely associated with BC (OR = 0.50; 95% CI: 0.40, 0.62). Both associations remained significant by BC molecular subtypes. These findings could contribute to the development of public health strategies for BC prevention.
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Barrera-Núñez D, Torres-Ibarra L, León-Maldonado L, Stern D, Barrientos-Gutiérrez T, López-Carrillo L. Revisión rápida de la transmisión del SARS-CoV-2 por contacto con objetos y superficies. SALUD PUBLICA DE MEXICO 2020; 63:126-135. [PMID: 33984205 DOI: 10.21149/11877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/29/2020] [Indexed: 11/06/2022] Open
Abstract
Objetivo. Identificar evidencia científica sobre la transmisión indirecta del SARS-CoV-2 en espacios extrahospitalarios y medidas poblacionales para su prevención. Material y métodos. Una revisión rápida de lo publicado en PubMed y MedRxiv entre 01/12/2019 y 24/04/2020 sobre los temas 1) la contaminación y viabilidad del SARS-CoV-2 en distintas superficies inanimadas; 2) la efectividad desinfectante ante SARS-CoV-2 de productos accesibles a nivel domiciliario; 3) los casos y brotes de contagio de SARS-CoV-2 por medio de superficies. Resultados. Una alta proporción de los objetos de personas infectadas con SARS-CoV-2 (inodoro, ollas y tabletas electrónicas) se encuentran contaminados. Este virus permanece viable desde horas hasta días en papel, cartón, tela, vidrio, madera, plástico, acero y cubrebocas. El etanol, 2-propanol, cloro y jabón son efectivos para desactivarlo. Existe poca evidencia sobre casos y brotes por contagio indirecto. Conclusiones. Se requieren estudios que determinen la dosis mínima infectante por autoinoculación. Apelando al principio precautorio, se incluyeron recomendaciones para reducir el riesgo de contagio indirecto.
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Ferro A, Costa AR, Morais S, Bertuccio P, Rota M, Pelucchi C, Hu J, Johnson KC, Zhang ZF, Palli D, Ferraroni M, Yu GP, Bonzi R, Peleteiro B, López-Carrillo L, Tsugane S, Hamada GS, Hidaka A, Malekzadeh R, Zaridze D, Maximovitch D, Vioque J, Navarrete-Munoz EM, Alguacil J, Castaño-Vinyals G, Wolk A, Håkansson N, Hernández-Ramírez RU, Pakseresht M, Ward MH, Pourfarzi F, Mu L, López-Cervantes M, Persiani R, Kurtz RC, Lagiou A, Lagiou P, Boffetta P, Boccia S, Negri E, Camargo MC, Curado MP, La Vecchia C, Lunet N. Fruits and vegetables intake and gastric cancer risk: A pooled analysis within the Stomach cancer Pooling Project. Int J Cancer 2020; 147:3090-3101. [PMID: 32525569 PMCID: PMC8545605 DOI: 10.1002/ijc.33134] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 03/20/2020] [Accepted: 04/07/2020] [Indexed: 12/15/2022]
Abstract
A low intake of fruits and vegetables is a risk factor for gastric cancer, although there is uncertainty regarding the magnitude of the associations. In our study, the relationship between fruits and vegetables intake and gastric cancer was assessed, complementing a previous work on the association betweenconsumption of citrus fruits and gastric cancer. Data from 25 studies (8456 cases and 21 133 controls) with information on fruits and/or vegetables intake were used. A two-stage approach based on random-effects models was used to pool study-specific adjusted (sex, age and the main known risk factors for gastric cancer) odds ratios (ORs) and the corresponding 95% confidence intervals (CIs). Exposure-response relations, including linear and nonlinear associations, were modeled using one- and two-order fractional polynomials. Gastric cancer risk was lower for a higher intake of fruits (OR: 0.76, 95% CI: 0.64-0.90), noncitrus fruits (OR: 0.86, 95% CI: 0.73-1.02), vegetables (OR: 0.68, 95% CI: 0.56-0.84), and fruits and vegetables (OR: 0.61, 95% CI: 0.49-0.75); results were consistent across sociodemographic and lifestyles categories, as well as study characteristics. Exposure-response analyses showed an increasingly protective effect of portions/day of fruits (OR: 0.64, 95% CI: 0.57-0.73 for six portions), noncitrus fruits (OR: 0.71, 95% CI: 0.61-0.83 for six portions) and vegetables (OR: 0.51, 95% CI: 0.43-0.60 for 10 portions). A protective effect of all fruits, noncitrus fruits and vegetables was confirmed, supporting further dietary recommendations to decrease the burden of gastric cancer.
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Ferro A, Morais S, Pelucchi C, Aragonés N, Kogevinas M, López-Carrillo L, Malekzadeh R, Tsugane S, Hamada GS, Hidaka A, Hernández-Ramírez RU, López-Cervantes M, Zaridze D, Maximovitch D, Pourfarzi F, Zhang ZF, Yu GP, Pakseresht M, Ye W, Plymoth A, Leja M, Gasenko E, Derakhshan MH, Negri E, La Vecchia C, Peleteiro B, Lunet N. Smoking and Helicobacter pylori infection: an individual participant pooled analysis (Stomach Cancer Pooling- StoP Project). Eur J Cancer Prev 2020; 28:390-396. [PMID: 30272597 DOI: 10.1097/cej.0000000000000471] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Smoking has been associated with acquisition and increased persistence of Helicobacter pylori infection, as well as with lower effectiveness of its eradication. A greater prevalence of infection among smokers could contribute to the increased risk for gastric cancer. We aimed to estimate the association between smoking and seropositivity to H. pylori through an individual participant data pooled analysis using controls from 14 case-control studies participating in the Stomach Cancer Pooling Project. Summary odds ratios and prevalence ratios (PRs), adjusted for age, sex and social class, and the corresponding 95% confidence intervals (CIs) were estimated through random-effects meta-analysis. Heterogeneity was quantified using the I statistic and publication bias with Egger's test. There was no significant association between smoking (ever vs. never) and H. pylori seropositivity (adjusted odds ratio = 1.08; 95% CI: 0.89-1.32; adjusted PR = 1.01; 95% CI: 0.98-1.05). The strength of the association did not increase with the intensity or duration of smoking; stratified analyses according to sex, age, region or type of sample did not yield a consistent pattern of variation or statistically significant results, except for participants younger than 55 years and who had been smoking for more than 30 years (adjusted PR = 1.08; 95% CI: 1.02-1.15). This is the first collaborative analysis providing pooled estimates for the association between smoking and H. pylori seropositivity, based on detailed and uniform information and adjusting for major covariates. The results do not support an association between smoking and H. pylori infection.
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Gamboa-Loira B, Cebrián ME, López-Carrillo L. Arsenic exposure in northern Mexican women. SALUD PUBLICA DE MEXICO 2020; 62:262-269. [PMID: 32520484 DOI: 10.21149/11085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/23/2020] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE To describe interindividual metabolism variations and sociodemographic characteristics associated to urinary arsenic, and to estimate the arsenic contamination in water from urinary total arsenic (TAs). MATERIALS AND METHODS Women (n=1 028) from northern Mexico were interviewed about their sociodemographic characteristics and their urinary concentrations of arsenic species were measured by liquid chromatography. Inorganic arsenic (iAs) in water was estimated from urinary TAs. RESULTS Women were 20-88 years old. TAs in urine ranged from p10=3.41 to p90=56.93 μg/L; 74% of women had levels >6.4 μg/L. iAs in water varied from p10=3.04 to p90=202.12 μg/L; 65% of women had concentrations >10 μg/L, and 41%, concentrations >25 μg/L. Large variations in iAs metabolism were observed. TAs was significantly negatively associated with age and schooling, and positively with the state of residence. CONCLUSIONS Exposure to iAs is an environmental problem in Mexico. Individual variations in metabolism are a challenge to design prevention and control programs.
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López-Carrillo L, Gamboa-Loira B, Gandolfi AJ, Cebrián ME. Inorganic arsenic methylation capacity and breast cancer by immunohistochemical subtypes in northern Mexican women. ENVIRONMENTAL RESEARCH 2020; 184:109361. [PMID: 32209496 DOI: 10.1016/j.envres.2020.109361] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Previously we reported that inorganic arsenic (iAs) methylation capacity was associated with breast cancer (BC). BC risk factors may vary according to immunohistochemical subtype. Here we explored the relationships between the capacity to methylate iAs and the risk of BC by subtype. METHODS A population-based case-control study was performed in northern Mexico. Patients with available information about BC subtypes (n = 499) were age-matched with healthy controls. Sociodemographic, reproductive, and lifestyle characteristics were obtained. Tumor marker information was obtained from medical records. Cases were classified as HR+ [estrogen receptor (ER+) and/or progesterone (PR+), and human epidermal growth factor receptor 2 (HER2-)], HER2+, or triple negative (TN). Urinary arsenic species were determined by high performance liquid chromatography inductively coupled plasma mass spectrometry (HPLC-ICP-MS), and methylation capacity parameters calculated. Conditional logistic regression models were used to estimate BC risk by subtypes. RESULTS Urinary total arsenic varied from 0.60 to 303.29 μg/L. A significant positive association was found between % monomethylarsonic acid (%MMA) and HR + BC: one percent increase resulted in OR%MMA continuous = 2.73, 95% CI: 1.48, 5.05), and this association remained even when %iAs or % dimethylarsinic acid (%DMA) were added to the models with %MMA. MMA/iAs was positively associated with HR + BC (ORMMA/iAs continuous = 2.03, 95% CI: 1.33-3.10). A significant negative association was observed between DMA/MMA and HR + BC (ORDMA/MMA continuous = 0.43, 95% CI: 0.26, 0.71). MMA/iAs was positively associated with TN BC (OR MMA/iAs continuous = 4.05; 95% CI: 1.63, 10.04). CONCLUSION Altered iAs methylation capacity resulting in higher %MMA was associated with HR+ and TN BC but not with HER2+. MMA is the iAs metabolite more likely to be related to BC. Further research is needed to confirm these results and elucidate the underlying biological mechanisms.
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Gatica-Domínguez G, Rothenberg SJ, Torres-Sánchez L, Schnaas L, Stein AD, Schmidt RJ, López-Carrillo L. The association of prenatal folate and vitamin B12 levels with postnatal neurodevelopment varies by maternal MTHFR 677C>T genotype. INTERNATIONAL JOURNAL OF BEHAVIORAL DEVELOPMENT 2020. [DOI: 10.1177/0165025419853379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Prenatal folate and vitamin B12 status have been linked to child neuropsychological development, but less is known about maternal genetic influences on this association. We conducted an exploratory longitudinal study of 181 mother–child pairs to assess whether maternal MTHFR 677C>T genotype modifies the association between maternal plasma folate and vitamin B12 in the first trimester of pregnancy and child neuropsychological development. Maternal plasma folate and vitamin B12 were determined by radioimmunoassay, and MTHFR 677C>T genotypes by PCR. We evaluated child neuropsychological development at 1, 3, 6, 12, 18, 24, and 30 month old using the Bayley Scales of Infant Development II. We analyzed the data using mixed-effects multivariate linear regression. The MTHFR 677C>T genotype distribution among the mothers was 18.2% CC, 49.8% CT, and 32.0% TT. The Mental Development Index (MDI) was inversely associated with maternal plasma folate among offspring of MTHFR 677CC mothers (β = -2.18 per twofold increase, 95% CI -4.07; -0.30, corrected P value = 0.02); no significant associations were observed among children born to women of other genotypes. The Motor Development Index (PDI) was not significantly associated with maternal plasma folate in any maternal MTHFR 677C>T genotype group, nor were MDI or PDI significantly associated with maternal plasma vitamin B12 in any maternal MTHFR 677C>T genotype group. This study suggests that maternal MTHFR 677CC genotype interacts with first-trimester plasma folate to influence offspring mental development.
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Rojas-Lima E, Gamboa-Loira B, Cebrián ME, Rothenberg SJ, López-Carrillo L. A cumulative index of exposure to endogenous estrogens and breast cancer by molecular subtypes in northern Mexican women. Breast Cancer Res Treat 2020; 180:791-800. [PMID: 32086656 DOI: 10.1007/s10549-020-05562-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/31/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE To evaluate breast cancer (BC) molecular subtypes association with reproductive characteristics and an index of cumulative exposure to endogenous estrogens (EEI) in Mexican women. METHODS We performed a study of incident cases and population controls in northern Mexico. We included BC cases with tumor molecular classification in their medical records (n = 509), and classified them as HR+/HER2- (ER+ and/or PR+ and HER2-) (n = 289), HER2+ (HR+ or HR-) (n = 117) or triple negative (TN) (n = 103). We matched controls (n = 1030) by age and place of residence with index cases. Women were interviewed about their reproductive history, from which the EEI was developed. We used logistic regression models to estimate BC molecular subtypes associations with reproductive characteristics and EEI. RESULTS The EEI was higher in all subtypes compared to controls (Median HR+/HER2- 27.25, HER2+ 26.8, TN 24.2 vs. controls 22.8 years, p < 0.05), and was associated with HR+/HER2- (ORT3 vs. T1 = 2.58, 95% CI 1.77-3.55, p-trend < 0.001) and HER2+ (ORT3 vs. T1 = 4.17, 95% CI 2.15-8.08, p-trend < 0.001) BC. Additionally, HR+/HER2- tumors were positively associated with age at first pregnancy and age at menopause, and negatively with age at menarche, parity and breastfeeding. The HER2+ subtype was associated in the same direction as HR+/HER2- tumors with all the reproductive characteristics except for age at menarche. TN tumors were negatively associated with parity and breastfeeding. CONCLUSION Endogenous estrogens exposure throughout Mexican women reproductive life may contribute to the development of all but TN BC, however, these findings should be confirmed in other Hispanic populations.
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Ferro A, Rosato V, Rota M, Costa AR, Morais S, Pelucchi C, Johnson KC, Hu J, Palli D, Ferraroni M, Zhang ZF, Bonzi R, Yu GP, Peleteiro B, López-Carrillo L, Tsugane S, Hamada GS, Hidaka A, Zaridze D, Maximovitch D, Vioque J, Navarrete-Munoz EM, Aragonés N, Martín V, Hernández-Ramírez RU, Bertuccio P, Ward MH, Malekzadeh R, Pourfarzi F, Mu L, López-Cervantes M, Persiani R, Kurtz RC, Lagiou A, Lagiou P, Boffetta P, Boccia S, Negri E, Camargo MC, Curado MP, La Vecchia C, Lunet N. Meat intake and risk of gastric cancer in the Stomach cancer Pooling (StoP) project. Int J Cancer 2019; 147:45-55. [PMID: 31584199 DOI: 10.1002/ijc.32707] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 12/12/2022]
Abstract
The consumption of processed meat has been associated with noncardia gastric cancer, but evidence regarding a possible role of red meat is more limited. Our study aims to quantify the association between meat consumption, namely white, red and processed meat, and the risk of gastric cancer, through individual participant data meta-analysis of studies participating in the "Stomach cancer Pooling (StoP) Project". Data from 22 studies, including 11,443 cases and 28,029 controls, were used. Study-specific odds ratios (ORs) were pooled through a two-stage approach based on random-effects models. An exposure-response relationship was modeled, using one and two-order fractional polynomials, to evaluate the possible nonlinear association between meat intake and gastric cancer. An increased risk of gastric cancer was observed for the consumption of all types of meat (highest vs. lowest tertile), which was statistically significant for red (OR: 1.24; 95% CI: 1.00-1.53), processed (OR: 1.23; 95% CI: 1.06-1.43) and total meat (OR: 1.30; 95% CI: 1.09-1.55). Exposure-response analyses showed an increasing risk of gastric cancer with increasing consumption of both processed and red meat, with the highest OR being observed for an intake of 150 g/day of red meat (OR: 1.85; 95% CI: 1.56-2.20). This work provides robust evidence on the relation between the consumption of different types of meat and gastric cancer. Adherence to dietary recommendations to reduce meat consumption may contribute to a reduction in the burden of gastric cancer.
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Mandel ND, Gamboa-Loira B, Cebrián ME, Mérida-Ortega Á, López-Carrillo L. Challenges to regulate products containing bisphenol A: Implications for policy. ACTA ACUST UNITED AC 2019; 61:692-697. [DOI: 10.21149/10411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 08/23/2019] [Indexed: 11/06/2022]
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Murphy L, Mérida-Ortega Á, Cebrián ME, Hernández-Garciadiego L, Gómez-Ruiz H, Gamboa-Loira B, López-Carrillo L. Exposure to bisphenol A and diabetes risk in Mexican women. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:26332-26338. [PMID: 31286379 DOI: 10.1007/s11356-019-05731-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 06/10/2019] [Indexed: 05/25/2023]
Abstract
Bisphenol A (BPA) is an endocrine-disrupting chemical widely used in the production of polycarbonate plastics and epoxy resins, which has been previously linked to diabetes among non-Hispanic populations. As part of a case control study for breast cancer, only controls with BPA information were included in this report. The final sample size comprises 70 self-reported diabetics and 334 non-diabetics. Urinary free bisphenol A (BPA-F) (μg/L) was determined by solid-phase extraction and HPLC/FLD analysis. Logistic regression models were used to evaluate the association between BPA-F and self-reported diabetes. After adjusting by age, urinary BPA-F (4.06-224.53 μg/g creatinine) was associated with diabetes exposure (OR = 1.85; 95% CI 1.04, 3.28) compared with women in the reference category (0.67-4.05 μg/g creatinine). BPA may be an environmental cofactor of diabetes. More studies are needed to confirm this result, especially in Hispanic populations.
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Coutiño-Escamilla L, Piña-Pozas M, Guimaraes-Borges G, Tobías-Garcés A, López-Carrillo L. [Non-pharmacological interventions to reduce depressive symptoms in women with breast cancer]. SALUD PUBLICA DE MEXICO 2019; 61:532-541. [PMID: 31322846 DOI: 10.21149/9980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 04/10/2019] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE To describe and discuss the results of non-pharmacological interventions (NPI) adjuvants in the treatment of depressive symptoms among women with breast cancer (BC). MATERIALS AND METHODS A systematic review on NPI was performed, which was applied to patients with cancer and depressive symptoms in seven databases. The review was limited from January 1, 2006 to December 31, 2017 and to English, Spanish and Portuguese languages. The medical descriptors used were "breast neoplasm" and "depression". RESULTS There are several NPI that are able stimulate the physical or psychosocial dimensions. In this article we propose a classification based on nine identified therapeutic strategies, among which exercise, psychotherapy and yoga with meditation stand out. CONCLUSIONS Based on the available evidence, we concluded that psychotherapy and yoga with meditation reduce depressive symptoms in patients with CaMa. More research is needed to determine the magnitude of the reduction of depressive symptoms, according to their severity, presence of comorbidities and diversity of INF.
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Guerrero CH, Gamboa-Loira B, Mérida-Ortega Á, López-Carrillo L. Dietary Glycemic Index and Glycemic Load and Risk of Breast Cancer by Molecular Subtype in Mexican Women. Nutr Cancer 2019; 71:1283-1289. [PMID: 31058544 DOI: 10.1080/01635581.2019.1607408] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The objective was to estimate the risk of breast cancer (BC) molecular subtypes in relation to the average glycemic index (GI) and the dietary glycemic load (GL) in Mexican women. From 2007 to 2011, a study of incident cases and population controls was conducted in five states of northern Mexico. A subsample of 509 cases matched 1:1 by age with 509 controls was selected. With a food frequency questionnaire, information about diet was obtained, and GI and GL were calculated. The expression of human epidermal growth factor receptor 2 (HER2), and estrogen (ER) and progesterone (PR) receptors in tumors was obtained from medical records. Patients were classified as luminal A (RE+ and/or PR+/HER2-), HER2+ (RE+ and/or PR+/HER2+ and RE-/PR-/HER2+), or triple negative (TN) (RE-/PR-/HER2-). GI and GL associations with BC molecular subtypes were evaluated using conditional logistic regression models. GI was positively associated with luminal A (OR= 1.12; 95% CI: 1.03, 1.22), HER2+ (OR= 1.15; 95% CI: 1.02, 1.30), and TN (OR= 1.20; 95% CI: 1.03, 1.39) BC. GL was not associated with BC molecular subtypes. These results suggest that the type of carbohydrate consumed is associated with increased BC regardless of the luminal A, HER2+, and TN subtypes.
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Rota M, Alicandro G, Pelucchi C, Bonzi R, Bertuccio P, Hu J, Zhang ZF, Johnson KC, Palli D, Ferraroni M, Yu GP, Galeone C, López-Carrillo L, Muscat J, Lunet N, Ferro A, Ye W, Plymoth A, Malekzadeh R, Zaridze D, Maximovitch D, Kogevinas M, Fernández de Larrea N, Vioque J, Navarrete-Muñoz EM, Tsugane S, Hamada GS, Hidaka A, Pakseresht M, Wolk A, Håkansson N, Hernández-Ramírez RU, López-Cervantes M, Ward M, Pourfarzi F, Mu L, Kurtz RC, Lagiou A, Lagiou P, Boffetta P, Boccia S, Negri E, La Vecchia C. Education and gastric cancer risk-An individual participant data meta-analysis in the StoP project consortium. Int J Cancer 2019; 146:671-681. [PMID: 30919464 DOI: 10.1002/ijc.32298] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 01/30/2019] [Accepted: 02/14/2019] [Indexed: 01/11/2023]
Abstract
Low socioeconomic position (SEP) is a strong risk factor for incidence and premature mortality from several cancers. Our study aimed at quantifying the association between SEP and gastric cancer (GC) risk through an individual participant data meta-analysis within the "Stomach cancer Pooling (StoP) Project". Educational level and household income were used as proxies for the SEP. We estimated pooled odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) across levels of education and household income by pooling study-specific ORs through random-effects meta-analytic models. The relative index of inequality (RII) was also computed. A total of 9,773 GC cases and 24,373 controls from 25 studies from Europe, Asia and America were included. The pooled OR for the highest compared to the lowest level of education was 0.60 (95% CI, 0.44-0.84), while the pooled RII was 0.45 (95% CI, 0.29-0.69). A strong inverse association was observed both for noncardia (OR 0.39, 95% CI, 0.22-0.70) and cardia GC (OR 0.47, 95% CI, 0.22-0.99). The relation was stronger among H. pylori negative subjects (RII 0.14, 95% CI, 0.04-0.48) as compared to H. pylori positive ones (RII 0.29, 95% CI, 0.10-0.84), in the absence of a significant interaction (p = 0.28). The highest household income category showed a pooled OR of 0.65 (95% CI, 0.48-0.89), while the corresponding RII was 0.40 (95% CI, 0.22-0.72). Our collaborative pooled-analysis showed a strong inverse relationship between SEP indicators and GC risk. Our data call for public health interventions to reduce GC risk among the more vulnerable groups of the population.
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Mérida-Ortega Á, Rothenberg SJ, Torres-Sánchez L, Schnaas L, Hernández-Alcaraz C, Cebrián ME, García-Hernández RM, Ogaz-González R, López-Carrillo L. Polyunsaturated fatty acids and child neurodevelopment among a population exposed to DDT: a cohort study. Environ Health 2019; 18:17. [PMID: 30819201 PMCID: PMC6396452 DOI: 10.1186/s12940-019-0456-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 02/22/2019] [Indexed: 05/31/2023]
Abstract
BACKGROUND Child neurodevelopment has been positively linked to maternal intake of polyunsaturated fatty acids (PUFAs) during pregnancy; however, it is unknown if that relationship persists among populations exposed to environmental neurotoxicants. OBJECTIVE The aim of this work was to assess whether maternal dietary intake of PUFAs during pregnancy is positively associated with child neurodevelopment, whose mothers were environmentally exposed to 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT). METHODS A prospective cohort study with 276 mother-child pairs was performed in Mexico. Neurodevelopment was assessed by Bayley Scales II from children age 1 to 30 months. Dietary PUFAs intake was estimated by Food Frequency Questionnaire at 1st and 3rd trimester of pregnancy. DDE (1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene, the main metabolite of DDT) maternal serum levels were determined by electron capture gas chromatography. Longitudinal multivariate linear mixed-effects analysis, which combines mental (MDI) and motor (PDI) Bayley scales in a single model, were performed. RESULTS Our results show that in a sample environmentally exposed to DDT, maternal ingestion of DPA during the first trimester of pregnancy was positively associated with MDI (β = 0.10, 95% CI 0.02, 0.18) in children from 1 to 30 months. Likewise, our results suggest that dietary ALA may be also related to MDI. CONCLUSION DPA may benefit neurodevelopment even in populations exposed to DDT. Our results strengthen the importance of PUFAs intake during the prenatal period.
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Barrios PL, Vázquez-Salas RA, López-Carrillo L, Menezes-Filho JA, Torres-Sánchez L. Dietary determinants of urinary molybdenum levels in Mexican women: a pilot study. SALUD PUBLICA DE MEXICO 2018; 59:548-555. [PMID: 29267652 DOI: 10.21149/8162] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 05/24/2017] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE This study determined the main dietary sources of urinary molybdenum (Mo) concentrations in a sample of 124 pregnant women in Mexico. MATERIALS AND METHODS Dietary data was collected during pregnancy, through a semi-qualitative food frequency questionnaire, with information of 84 foods. Urine Mo levels were determined by atomic absorption spectrometry, for at least two trimesters of pregnancy. The associations with Mo levels were estimated by generalized mixed effect regression models. RESULTS Between 5.8 to 12.7% of the samples were above the 95th percentile of urinary Mo distribution reported by National Health and Nutrition Examination Survey (NHANES) 2009-2010 for women (151 μg/L and 148 μg/g creatinine). After bootstrap resampling was conducted, women with high-consumption of hot peppers (β=1.34μg/g; 95% CI: 1.00-1.80; p= 0.05) had marginally higher urinary Mo concentration levels, creatinine adjusted, compared to women with low-consumption. CONCLUSION. Hot chili pepper consumption may contribute to body burden Mo levels in this population.
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