Martha María Téllez‐Rojo
Biographic Data
| ID | 6369206 |
|---|---|
| NAME | Martha María Téllez‐Rojo |
| GIVEN NAMES | Martha María |
| FAMILY NAME | Téllez‐Rojo |
| SIGNATURE | ROJO M M T |
| AFFILIATIONS | Instituto Nacional de Salud Pública |
| ORCID | 0000-0003-3322-3334 |
| VERIFIED | Yes |
| TOTAL WORKS | 23 |
| TOTAL CITATIONS | 17 |
| AUTHOR COUNT | 23 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 1 |
Associations of Prenatal Socioeconomic Status and Childhood Working Memory
Prenatal socioeconomic status is a predictor of childhood working memory, but it may be a stronger predictor for girls compared with for boys
Dietary Fluoride Exposure During Early Childhood and Its Association with Dental Fluorosis in a Sample of Mexican Adolescents
Dental fluorosis indicates past fluoride intake. People living in Mexico City are exposed to fluoridated salt, which contributes significantly to fluoride intake. This study aimed to (1) estimate fluoride intake during early childhood and fluorosis prevalence in permanent teeth in adolescence and (2) identify intake windows associated with higher fluorosis scores in upper central incisors (UCIs). We included 432 participants from the ELEMENT proj…
Lead Exposure Can Affect Early Childhood Development and Could Be Aggravated by Stunted Growth
Children with stunted growth are more vulnerable to the adverse effects of lead exposure. These results add to previous research calling for action to reduce lead exposure, particularly in children with chronic undernutrition
Pollution and health
The Lancet Commission on pollution and health reported that pollution was responsible for 9 million premature deaths in 2015, making it the world's largest environmental risk factor for disease and premature death. We have now updated this estimate using data from the Global Burden of Diseases, Injuriaes, and Risk Factors Study 2019. We find that pollution remains responsible for approximately 9 million deaths per year, corresponding to one in si…
Differential fat accumulation in early adulthood according to adolescent‐BMI and heavy metal exposure
Heavy metal exposure in adolescence may alter how fat is accumulated in later periods of life
Prenatal trace elements mixture is associated with learning deficits on a behavioral acquisition task among young children
Children are exposed to many trace elements throughout their development. Given their ubiquity and potential to have effects on children's neurodevelopment, these exposures are a public health concern. This study sought to identify trace element mixture-associated deficits in learning behavior using operant testing in a prospective cohort. We included 322 participants aged 6-7 years recruited in Mexico City with complete data on prenatal trace el…
Maternal carbohydrate intake during pregnancy is associated with child peripubertal markers of metabolic health but not adiposity
Objective: To examine the associations of trimester-specific maternal prenatal carbohydrate (CHO) intake with offspring adiposity and metabolic health during peripuberty. Design: Prospective cohort study in which maternal dietary intake was collected via validated FFQ during each trimester. Offspring adiposity and metabolic biomarkers were evaluated at age 8–14 years. We used multivariable linear regression to examine associations between total e…
Relationships of beverage consumption and actigraphy-assessed sleep parameters among urban-dwelling youth from Mexico
Objective: To examine whether usual beverage intake was associated with sleep timing, duration and fragmentation among adolescents. Design: Usual beverage intake was assessed with a FFQ. Outcomes included sleep duration, midpoint (median of bed and wake times) and fragmentation, assessed with 7-d actigraphy. Sex-stratified linear regression was conducted with sleep characteristics as separate outcomes and quantiles of energy-adjusted beverage int…
Exposure to Phenols, Phthalates, and Parabens and Development of Metabolic Syndrome Among Mexican Women in Midlife
Background: Evidence suggests exposure to endocrine-disrupting chemicals (EDCs) can influence Metabolic Syndrome (MetS) risk in adults, but it is unclear if EDCs impact women during midlife. We examined if EDCs measured in adult women were predictive of MetS and its components 9 years later. Methods: We measured urinary phthalate metabolites, phenols, and parabens collected in 2008 among 73 females from the ELEMENT study. MetS and its components …
Nephrotoxic Metal Mixtures and Preadolescent Kidney Function
Exposure to metals including lead (Pb), cadmium (Cd), and arsenic (As), may impair kidney function as individual toxicants or in mixtures. However, no single medium is ideal to study multiple metals simultaneously. We hypothesized that multi-media biomarkers (MMBs), integrated indices combining information across biomarkers, are informative of adverse kidney function. Levels of Pb, Cd, and As were quantified in blood and urine in 4-6-year-old Mex…
Changes in Depressive Symptoms, Stress and Social Support in Mexican Women during the Covid-19 Pandemic
The aim of this study was to examine changes in depression, stress and social support levels before and during the COVID-19 pandemic in women living in Mexico City. We studied 466 women enrolled in the Programming Research in Obesity, Growth, Environment and Social Stressors (PROGRESS) study who completed the Edinburgh Depression Scale (EDS) questionnaire prior (2018-2019) and during the lockdown period of the pandemic (May-November 2020). Psycho…
PM2.5 exposure as a risk factor for type 2 diabetes mellitus in the Mexico City metropolitan area
Our results add to the evidence linking PM 2.5 exposure to DM in Mexican adults. Studies in low- and middle-income countries, where PM 2.5 atmospheric concentrations exceed WHO standards, are required to strengthen the evidence
Predictors of patterns of weight change 1 year after delivery in a cohort of Mexican women
Objective: To evaluate the associations of pregestational BMI, gestational weight gain (GWG) and breast-feeding at 1 month postpartum with four patterns of weight change during the first year after delivery: postpartum weight retention (PPWR), postpartum weight gain (PPWG), postpartum weight retention + gain (PPWR + WG) and return to pregestational weight. Design: In this secondary analysis of a prospective study, we categorised postpartum weight…
Dietary fluoride intake over the course of pregnancy in Mexican women
Objective: To estimate dietary fluoride intake (F) over the course of pregnancy and the overall adjusted difference in dietary F intake by pregnancy stages and levels of compliance with dietary recommendations. Design: Secondary data analysis from a longitudinal pregnancy cohort study in a population exposed to fluoridated salt. Women were followed during the early, middle and late stages of their pregnancy ( n 568). The dietary intake of recomme…
Early Gestational Exposure to High-Molecular-Weight Phthalates and Its Association with 48-Month-Old Children’s Motor and Cognitive Scores
In utero phthalate exposure has been associated with neurodevelopmental disorders, nevertheless, trimester-specific susceptibility remains understudied. Our aim was to identify susceptible windows to the effects of gestational High-Molecular-Weight Phthalates (HMWP) exposure on 48 months' neurodevelopment. We measured six HMWP metabolites (MEHP, MEHHP, MEOHP, MECPP, MBzP and MCPP) in urine samples collected during each trimester from women in the…
Blood levels of lead and dental caries in permanent teeth
This study shows a lack of association between exposure to lead between the ages of 1-4 years of age and dental caries in permanent dentition later in life. Other covariates, such as age and sugar consumption, appeared to play a more prominent role in caries development
Exploring dietary patterns in a Mexican adolescent population
Prenatal Stress, Methylation in Inflammation-Related Genes, and Adiposity Measures in Early Childhood
OBJECTIVE: Maternal stress during pregnancy may influence childhood growth and adiposity, possibly through immune/inflammatory programming. We investigated whether exposure to prenatal stress and methylation in inflammation-related genes were associated with childhood adiposity in 424 mother-child pairs in Mexico City, Mexico. METHODS: A stress index was created based on four prenatally administered stress-related scales (Exposure to Violence, Cr…
Children’s Blood Lead Concentrations from 1988 to 2015 in Mexico City
Despite the removal of lead from gasoline in 1997, elevated blood lead levels (BLLs) > 5 μg/dL are still detectable in children living in Mexico City. The use of lead-glazed ceramics may explain these persistent exposure levels. Mexico lacks a national surveillance program for BLL, but temporal trends can be derived from epidemiological studies. With this approach, we leveraged a series of birth cohorts to report BLL trends from 1987 to 2002 and …
Associations of the infancy body mass index peak with anthropometry and cardiometabolic risk in Mexican adolescents
Later age and larger magnitude of the infancy BMI peak are associated with higher adiposity at 8-14 years of age. Later age but not magnitude of the BMI peak are related to a worse cardiometabolic profile during peripuberty
Association of Bisphenol A Exposure with Breastfeeding and Perceived Insufficient Milk Supply in Mexican Women
Public policy for the poor? A randomised assessment of the Mexican universal health insurance programme
A “politically robust” experimental design for public policy evaluation, with application to the Mexican Universal Health Insurance program
We develop an approach to conducting large‐scale randomized public policy experiments intended to be more robust to the political interventions that have ruined some or all parts of many similar previous efforts. Our proposed design is insulated from selection bias in some circumstances even if we lose observations; our inferences can still be unbiased even if politics disrupts any two of the three steps in our analytical procedures; and other em…
A “politically robust” experimental design for public policy evaluation, with application to the Mexican Universal Health Insurance program
We develop an approach to conducting large‐scale randomized public policy experiments intended to be more robust to the political interventions that have ruined some or all parts of many similar previous efforts. Our proposed design is insulated from selection bias in some circumstances even if we lose observations; our inferences can still be unbiased even if politics disrupts any two of the three steps in our analytical procedures; and other em…
Exploring dietary patterns in a Mexican adolescent population
A “politically robust” experimental design for public policy evaluation, with application to the Mexican Universal Health Insurance program
We develop an approach to conducting large‐scale randomized public policy experiments intended to be more robust to the political interventions that have ruined some or all parts of many similar previous efforts. Our proposed design is insulated from selection bias in some circumstances even if we lose observations; our inferences can still be unbiased even if politics disrupts any two of the three steps in our analytical procedures; and other em…
Public policy for the poor? A randomised assessment of the Mexican universal health insurance programme
Association of Bisphenol A Exposure with Breastfeeding and Perceived Insufficient Milk Supply in Mexican Women
Prenatal Stress, Methylation in Inflammation-Related Genes, and Adiposity Measures in Early Childhood
OBJECTIVE: Maternal stress during pregnancy may influence childhood growth and adiposity, possibly through immune/inflammatory programming. We investigated whether exposure to prenatal stress and methylation in inflammation-related genes were associated with childhood adiposity in 424 mother-child pairs in Mexico City, Mexico. METHODS: A stress index was created based on four prenatally administered stress-related scales (Exposure to Violence, Cr…
Children’s Blood Lead Concentrations from 1988 to 2015 in Mexico City
Despite the removal of lead from gasoline in 1997, elevated blood lead levels (BLLs) > 5 μg/dL are still detectable in children living in Mexico City. The use of lead-glazed ceramics may explain these persistent exposure levels. Mexico lacks a national surveillance program for BLL, but temporal trends can be derived from epidemiological studies. With this approach, we leveraged a series of birth cohorts to report BLL trends from 1987 to 2002 and …
Associations of the infancy body mass index peak with anthropometry and cardiometabolic risk in Mexican adolescents
Later age and larger magnitude of the infancy BMI peak are associated with higher adiposity at 8-14 years of age. Later age but not magnitude of the BMI peak are related to a worse cardiometabolic profile during peripuberty
Early Gestational Exposure to High-Molecular-Weight Phthalates and Its Association with 48-Month-Old Children’s Motor and Cognitive Scores
In utero phthalate exposure has been associated with neurodevelopmental disorders, nevertheless, trimester-specific susceptibility remains understudied. Our aim was to identify susceptible windows to the effects of gestational High-Molecular-Weight Phthalates (HMWP) exposure on 48 months' neurodevelopment. We measured six HMWP metabolites (MEHP, MEHHP, MEOHP, MECPP, MBzP and MCPP) in urine samples collected during each trimester from women in the…
Blood levels of lead and dental caries in permanent teeth
This study shows a lack of association between exposure to lead between the ages of 1-4 years of age and dental caries in permanent dentition later in life. Other covariates, such as age and sugar consumption, appeared to play a more prominent role in caries development
Exploring dietary patterns in a Mexican adolescent population
Exposure to Phenols, Phthalates, and Parabens and Development of Metabolic Syndrome Among Mexican Women in Midlife
Background: Evidence suggests exposure to endocrine-disrupting chemicals (EDCs) can influence Metabolic Syndrome (MetS) risk in adults, but it is unclear if EDCs impact women during midlife. We examined if EDCs measured in adult women were predictive of MetS and its components 9 years later. Methods: We measured urinary phthalate metabolites, phenols, and parabens collected in 2008 among 73 females from the ELEMENT study. MetS and its components …
Nephrotoxic Metal Mixtures and Preadolescent Kidney Function
Exposure to metals including lead (Pb), cadmium (Cd), and arsenic (As), may impair kidney function as individual toxicants or in mixtures. However, no single medium is ideal to study multiple metals simultaneously. We hypothesized that multi-media biomarkers (MMBs), integrated indices combining information across biomarkers, are informative of adverse kidney function. Levels of Pb, Cd, and As were quantified in blood and urine in 4-6-year-old Mex…
Changes in Depressive Symptoms, Stress and Social Support in Mexican Women during the Covid-19 Pandemic
The aim of this study was to examine changes in depression, stress and social support levels before and during the COVID-19 pandemic in women living in Mexico City. We studied 466 women enrolled in the Programming Research in Obesity, Growth, Environment and Social Stressors (PROGRESS) study who completed the Edinburgh Depression Scale (EDS) questionnaire prior (2018-2019) and during the lockdown period of the pandemic (May-November 2020). Psycho…
PM2.5 exposure as a risk factor for type 2 diabetes mellitus in the Mexico City metropolitan area
Our results add to the evidence linking PM 2.5 exposure to DM in Mexican adults. Studies in low- and middle-income countries, where PM 2.5 atmospheric concentrations exceed WHO standards, are required to strengthen the evidence
Predictors of patterns of weight change 1 year after delivery in a cohort of Mexican women
Objective: To evaluate the associations of pregestational BMI, gestational weight gain (GWG) and breast-feeding at 1 month postpartum with four patterns of weight change during the first year after delivery: postpartum weight retention (PPWR), postpartum weight gain (PPWG), postpartum weight retention + gain (PPWR + WG) and return to pregestational weight. Design: In this secondary analysis of a prospective study, we categorised postpartum weight…
Dietary fluoride intake over the course of pregnancy in Mexican women
Objective: To estimate dietary fluoride intake (F) over the course of pregnancy and the overall adjusted difference in dietary F intake by pregnancy stages and levels of compliance with dietary recommendations. Design: Secondary data analysis from a longitudinal pregnancy cohort study in a population exposed to fluoridated salt. Women were followed during the early, middle and late stages of their pregnancy ( n 568). The dietary intake of recomme…
Pollution and health
The Lancet Commission on pollution and health reported that pollution was responsible for 9 million premature deaths in 2015, making it the world's largest environmental risk factor for disease and premature death. We have now updated this estimate using data from the Global Burden of Diseases, Injuriaes, and Risk Factors Study 2019. We find that pollution remains responsible for approximately 9 million deaths per year, corresponding to one in si…
Differential fat accumulation in early adulthood according to adolescent‐BMI and heavy metal exposure
Heavy metal exposure in adolescence may alter how fat is accumulated in later periods of life
Prenatal trace elements mixture is associated with learning deficits on a behavioral acquisition task among young children
Children are exposed to many trace elements throughout their development. Given their ubiquity and potential to have effects on children's neurodevelopment, these exposures are a public health concern. This study sought to identify trace element mixture-associated deficits in learning behavior using operant testing in a prospective cohort. We included 322 participants aged 6-7 years recruited in Mexico City with complete data on prenatal trace el…
Maternal carbohydrate intake during pregnancy is associated with child peripubertal markers of metabolic health but not adiposity
Objective: To examine the associations of trimester-specific maternal prenatal carbohydrate (CHO) intake with offspring adiposity and metabolic health during peripuberty. Design: Prospective cohort study in which maternal dietary intake was collected via validated FFQ during each trimester. Offspring adiposity and metabolic biomarkers were evaluated at age 8–14 years. We used multivariable linear regression to examine associations between total e…
Relationships of beverage consumption and actigraphy-assessed sleep parameters among urban-dwelling youth from Mexico
Objective: To examine whether usual beverage intake was associated with sleep timing, duration and fragmentation among adolescents. Design: Usual beverage intake was assessed with a FFQ. Outcomes included sleep duration, midpoint (median of bed and wake times) and fragmentation, assessed with 7-d actigraphy. Sex-stratified linear regression was conducted with sleep characteristics as separate outcomes and quantiles of energy-adjusted beverage int…
Lead Exposure Can Affect Early Childhood Development and Could Be Aggravated by Stunted Growth
Children with stunted growth are more vulnerable to the adverse effects of lead exposure. These results add to previous research calling for action to reduce lead exposure, particularly in children with chronic undernutrition
Associations of Prenatal Socioeconomic Status and Childhood Working Memory
Prenatal socioeconomic status is a predictor of childhood working memory, but it may be a stronger predictor for girls compared with for boys
Dietary Fluoride Exposure During Early Childhood and Its Association with Dental Fluorosis in a Sample of Mexican Adolescents
Dental fluorosis indicates past fluoride intake. People living in Mexico City are exposed to fluoridated salt, which contributes significantly to fluoride intake. This study aimed to (1) estimate fluoride intake during early childhood and fluorosis prevalence in permanent teeth in adolescence and (2) identify intake windows associated with higher fluorosis scores in upper central incisors (UCIs). We included 432 participants from the ELEMENT proj…
Medicine (22 works) · Internal Medicine (15 works) · Environmental health (12 works) · Demography (9 works) · Cohort (7 works) · Demography (7 works) · Population (7 works) · Heavy Metal Exposure and Toxicity (6 works) · Obesity, Physical Activity, Diet (6 works) · Psychology (6 works)