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1.
Am J Epidemiol ; 193(2): 348-359, 2024 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-37715463

RESUMEN

Research on neighborhoods and health typically measures neighborhood context at a single point in time. However, neighborhood exposures accumulate over the life course, influenced by both residential mobility and neighborhood change, with potential implications for estimating the impact of neighborhoods on health. Commercial databases offer fine-grained longitudinal residential address data that can enrich life-course spatial epidemiology research, and validated methods for reconstructing residential histories from these databases are needed. Our study draws on unique data from a geographically diverse, population-based representative sample of adult Wisconsin residents and the LexisNexis (New York, New York) Accurint, a commercial personal profile database, to develop a systematic and reliable methodology for constructing individual residential histories. Our analysis demonstrated that creating residential histories across diverse geographical contexts is feasible, and it highlights differences in the information obtained from available residential histories by age, education, race/ethnicity, and rural/urban/suburban residency. Researchers should consider potential address data availability and information biases favoring socioeconomically advantaged individuals and their implications for studying health inequalities. Despite these limitations, LexisNexis data can generate varied residential exposure metrics and be linked to contextual data to enrich research into the contextual determinants of health at varied geographic scales.


Asunto(s)
Etnicidad , Características de la Residencia , Adulto , Humanos , Dinámica Poblacional , Estudios Epidemiológicos , Sesgo
2.
Am J Epidemiol ; 2024 Jul 05.
Artículo en Inglés | MEDLINE | ID: mdl-38973742

RESUMEN

Deleterious neighborhood conditions are associated with poor health, yet the health impact of cumulative lifetime exposure to neighborhood disadvantage is understudied. Using up to five decades of residential histories for 4,177 adult participants in the Survey of Health of Wisconsin (SHOW) and spatio-temporally linked neighborhood conditions, we develop four operational approaches to characterizing cumulative neighborhood (dis)advantage over the life course. We estimated their associations with self-reported general health and compared to estimates using neighborhood (dis)advantage at time of study enrollment. When cumulative exposures were assessed with the most granular temporal scale (Approach 4), neighborhood transport constraints (OR = 1.21, 95% CI: 1.08, 1.36), residential turnover (OR = 1.20, 95% CI: 1.07, 1.34), education deficit (OR = 1.17, 95% CI: 1.04, 1.32), racial segregation (OR = 1.20, 95% CI: 1.04, 1.38) and median household income (OR = 0.85, 95% CI: 0.75, 0.97) were significantly associated with risk of fair or poor health. For composite neighborhood disadvantage, cumulative exposures had a stronger association (OR = 1.05, 95% CI: 1.02, 1.08) than the cross-sectional exposure (OR = 1.03, 95% CI: 1.01, 1.06). Single point-in-time neighborhood measures underestimate the neighborhood and health relationship, underscoring the importance of a life course approach to cumulative exposure measurement.

3.
Environ Res ; 254: 119131, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38759771

RESUMEN

BACKGROUND: Per- and polyfluoroalkyl substances (PFAS) include thousands of manufactured compounds with growing public health concerns due to their potential for widespread human exposure and adverse health outcomes. While PFAS contamination remains a significant concern, especially from ingestion of contaminated food and water, determinants of the variability in PFAS exposure among regional and statewide populations in the United States remains unclear. OBJECTIVES: The objective of this study was to leverage The Survey of the Health of Wisconsin (SHOW), the only statewide representative cohort in the US, to assess and characterize the variability of PFAS exposure in a general population. METHODS: This study sample included a sub-sample of 605 adult participants from the 2014-2016 tri-annual statewide representative sample. Geometric means for PFOS, PFOA, PFNA, PFHxS, PFPeS, PFHpA, and a summed measure of 38 analyzed serum PFAS were presented by demographic, diet, behavioral, and residential characteristics. Multivariate linear regression was used to determine significant predictors of serum PFAS after adjustment. RESULTS: Overall, higher serum concentrations of long-chain PFAS were observed compared with short-chain PFAS. Older adults, males, and non-Hispanic White individuals had higher serum PFAS compared to younger adults, females, and non-White individuals. Eating caught fish in the past year was associated with elevated levels of several PFAS. DISCUSSION: This is among the first studies to characterize serum PFAS among a representative statewide sample in Wisconsin. Both short- and long-chain serum PFAS were detectable for six prominent PFAS. Age and consumption of great lakes fish were the most significant predictors of serum PFAS. State-level PFAS biomonitoring is important for identifying high risk populations and informing state public health standards and interventions, especially among those not living near known contamination sites.


Asunto(s)
Exposición a Riesgos Ambientales , Contaminantes Ambientales , Fluorocarburos , Humanos , Wisconsin , Fluorocarburos/sangre , Fluorocarburos/análisis , Femenino , Masculino , Adulto , Persona de Mediana Edad , Anciano , Contaminantes Ambientales/sangre , Contaminantes Ambientales/análisis , Adulto Joven , Adolescente
4.
J Community Health ; 49(1): 1-7, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37284918

RESUMEN

Carbon monoxide (CO) is a leading cause of poisoning. CO detectors are a known-effective prevention strategy, however, little is known about use of detectors or knowledge of risk. This study assessed awareness of CO poisoning risk, detector laws, and detector use among a statewide sample. Data collected from the Survey of the Health of Wisconsin (SHOW) included a CO Monitoring module added to the in-home interview for 466 participants representing unique households across Wisconsin in 2018-2019. Univariate and multivariable logistic regression models examined associations between demographic characteristics, awareness of CO laws and detector use. Less than half of households had a verified CO detector. Under 46% were aware of the detector law. Those aware had 2.82 greater odds of having a detector in the home compared to those unaware of the law. Lack of CO law awareness may lead to less frequent detector use and result in higher risk of CO poisoning. This highlights the need for CO risk and detector education to decrease poisonings.


Asunto(s)
Intoxicación por Monóxido de Carbono , Monóxido de Carbono , Humanos , Monóxido de Carbono/análisis , Intoxicación por Monóxido de Carbono/prevención & control , Encuestas Epidemiológicas , Salud Pública , Wisconsin , Publicaciones Periódicas como Asunto
5.
J Physiol ; 601(11): 2139-2163, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36086823

RESUMEN

Low-protein (LP) diets are associated with a decreased risk of diabetes in humans, and promote leanness and glycaemic control in both rodents and humans. While the effects of an LP diet on glycaemic control are mediated by reduced levels of the branched-chain amino acids, we have observed that reducing dietary levels of the other six essential amino acids leads to changes in body composition. Here, we find that dietary histidine plays a key role in the response to an LP diet in male C57BL/6J mice. Specifically reducing dietary levels of histidine by 67% reduces the weight gain of young, lean male mice, reducing both adipose and lean mass without altering glucose metabolism, and rapidly reverses diet-induced obesity and hepatic steatosis in diet-induced obese male mice, increasing insulin sensitivity. This normalization of metabolic health was associated not with caloric restriction or increased activity, but with increased energy expenditure. Surprisingly, the effects of histidine restriction do not require the energy balance hormone Fgf21. Histidine restriction that was started in midlife promoted leanness and glucose tolerance in aged males but not females, but did not affect frailty or lifespan in either sex. Finally, we demonstrate that variation in dietary histidine levels helps to explain body mass index differences in humans. Overall, our findings demonstrate that dietary histidine is a key regulator of weight and body composition in male mice and in humans, and suggest that reducing dietary histidine may be a translatable option for the treatment of obesity. KEY POINTS: Protein restriction (PR) promotes metabolic health in rodents and humans and extends rodent lifespan. Restriction of specific individual essential amino acids can recapitulate the benefits of PR. Reduced histidine promotes leanness and increased energy expenditure in male mice. Reduced histidine does not extend the lifespan of mice when begun in midlife. Dietary levels of histidine are positively associated with body mass index in humans.


Asunto(s)
Histidina , Delgadez , Masculino , Humanos , Animales , Ratones , Anciano , Histidina/metabolismo , Ratones Endogámicos C57BL , Dieta , Obesidad/metabolismo , Proteínas , Metabolismo Energético
6.
Clin Infect Dis ; 72(4): 697-702, 2021 02 16.
Artículo en Inglés | MEDLINE | ID: mdl-32544242

RESUMEN

A number of important principles in effective risk communication established in the late 20th century can provide important scientific insight into patient response to the risks posed by coronavirus disease 2019 (COVID-19). Early risk communication scholars found acceptability of risk was shaped by 2 key components: hazard and outrage. The number of people who are exposed, infected, and fall ill can be considered the hazard. How the public and patients and respond to messages regarding risk mitigation relates to outrage. Social and cultural factors, immediacy, uncertainty, familiarity, personal control, scientific uncertainty, and trust in institutions and media all shape perception and response to risk mesaging. Outrage factors influence the ever-changing public understanding of COVID-19 risk. In concert, hazard and outrage along with cultural and economic context shape adherence to, and overall acceptance of, personal mitigation strategies including wearing facemasks and social distancing among the general public. The spread of misinformation on social media also provides both challenges and opportunities for clinicians. Social media offers an opportunity for experts to quickly convey true information about hazards, but offers others the opportunity to counter this with the spread of misinformation and exacerbate outrage. We propose strategies for infectious diseases clinicians to apply risk communication principles and frameworks to improve patient care and public message development in response to COVID-19.


Asunto(s)
COVID-19 , Medios de Comunicación Sociales , Comunicación , Humanos , Opinión Pública , SARS-CoV-2
7.
Am J Epidemiol ; 190(5): 755-765, 2021 05 04.
Artículo en Inglés | MEDLINE | ID: mdl-33226072

RESUMEN

Children's sleep quality and duration are important to overall development, health, and wellbeing. However, measuring children's sleep is challenging, especially in situations where objective assessment is impractical. This study aimed to assess age and proxy effects in comparing subjective sleep duration with objective measures, in a community-based sample of Wisconsin children (aged 6-17 years), recruited from 2014-2017. The sample participants had a mean age of 11.4 (standard deviation, 3.3) years and 52% of them were male. We used linear mixed effects models to test for age effects in proxy- and self-report groups separately, and a quasiexperimental regression discontinuity approach to compare subjective sleep duration with objective actigraphy estimates across proxy- and self-report groups. We found evidence of systematic overestimation of sleep duration when using subjective measurements but did not find evidence of age effects in either group. Based on these analyses, we found evidence of differential overestimation by proxy- or self-report condition. Proxy reporters overestimated sleep duration by 2.3 hours (95% confidence interval: 2.2, 2.4), compared with 1.0 hour (95% confidence interval: 0.7, 1.2) for self-reporters. These findings suggest that proxy- versus self-reporting conditions are an important consideration when designing a study, and that it might be beneficial to reduce the age at which children self-report.


Asunto(s)
Apoderado , Autoinforme , Sueño , Actigrafía , Adolescente , Niño , Femenino , Humanos , Masculino , Modelos Estadísticos , Wisconsin
8.
J Pediatr Nurs ; 61: 346-354, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34555747

RESUMEN

PURPOSE: Sustained high stress exposure results in chronic activation of the stress response system, dysregulated stress responses, high allostatic load, and poor later-life health. Children and adolescents with chronic health conditions face stressors related to their condition in addition to those typical of childhood and adolescence, placing them at risk of high allostatic load. The purpose of this secondary analysis was to examine whether youth with chronic health conditions differ from controls on clinical measures of allostatic load. DESIGN AND METHODS: A secondary analysis of two datasets, the electronic health record of a tertiary children's hospital and data from the Survey of the Health of Wisconsin, compared youth with chronic health conditions to controls on clinical measures of allostatic load. Additional analyses explored whether parental stress and mental health influenced these relationships. RESULTS: Analyses identified differences in BMI, blood pressure, and waist circumference between youth with food allergy, anxiety, or depression, and controls. These relationships differed for males and females and for those with comorbid mental and physical conditions, and were influenced by parent stress and mental health. CONCLUSIONS: Results support future studies exploring whether high stress in youth with chronic health conditions leads to increased allostatic load. Incorporating biomarkers as well as genetic and epigenetic factors will provide critical insights. PRACTICE IMPLICATIONS: Youth with mental and physical CHCs may be at increased risk of high allostatic load, reflected in clinical measures of metabolism, and should have regular assessments of their metabolic health.


Asunto(s)
Alostasis , Hipersensibilidad a los Alimentos , Adolescente , Ansiedad , Trastornos de Ansiedad , Niño , Depresión/diagnóstico , Depresión/epidemiología , Femenino , Hipersensibilidad a los Alimentos/diagnóstico , Hipersensibilidad a los Alimentos/epidemiología , Humanos , Masculino , Estrés Psicológico/epidemiología
9.
Chem Res Toxicol ; 33(4): 860-879, 2020 04 20.
Artículo en Inglés | MEDLINE | ID: mdl-32259433

RESUMEN

The Ah receptor (AHR) has been studied for almost five decades. Yet, we still have many important questions about its role in normal physiology and development. Moreover, we still do not fully understand how this protein mediates the adverse effects of a variety of environmental pollutants, such as the polycyclic aromatic hydrocarbons (PAHs), the chlorinated dibenzo-p-dioxins ("dioxins"), and many polyhalogenated biphenyls. To provide a platform for future research, we provide the historical underpinnings of our current state of knowledge about AHR signal transduction, identify a few areas of needed research, and then develop concepts such as adaptive metabolism, ligand structural diversity, and the importance of proligands in receptor activation. We finish with a discussion of the cognate physiological role of the AHR, our perspective on why this receptor is so highly conserved, and how we might think about its cognate ligands in the future.


Asunto(s)
Contaminantes Ambientales/farmacología , Dibenzodioxinas Policloradas/farmacología , Hidrocarburos Policíclicos Aromáticos/farmacología , Receptores de Hidrocarburo de Aril/metabolismo , Animales , Contaminantes Ambientales/química , Humanos , Ligandos , Estructura Molecular , Dibenzodioxinas Policloradas/química , Hidrocarburos Policíclicos Aromáticos/química , Receptores de Hidrocarburo de Aril/genética , Transducción de Señal/efectos de los fármacos
10.
Environ Res ; 190: 109994, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32771801

RESUMEN

BACKGROUND: Understanding the health effects of exposure to chemical mixtures is critically important given the broad range of concurrent exposures throughout the life-course. While investigations of environmental chemicals and components of the human microbiome are becoming more common, few have examined associations with chemical mixtures. This study assesses the association between exposure to mixtures of 66 different environmental chemicals and nasal colonization of Staphylococcus aureus (SA) and methicillin resistant SA (MRSA). METHODS: Data came from the National Health and Nutrition Examination Survey (NHANES) 2001-2004. The analytical sample consists of 10,312 participants, age 6 years and older, subdivided into 8 groups with different chemical exposure mixtures. Within each of 6 chemical classes (metals, phthalates, polycyclic aromatic hydrocarbons (PAHs), polybrominated diphenyl ethers (PBDEs), polyfluorochemicals (PFCs), and phenols), weighted quantile sum (WQS) regression was used to analyze the joint association of the component compounds and nasal SA colonization. WQS was also used to assess the joint association of 3 chemical mixtures (metals, metal and PAHs, and metal and triclosan) and nasal MRSA colonization. All regression models were adjusted for confounders. RESULTS: The analytical sample was between ages 6-85, slightly more female, and predominantly non-smokers. Prevalence of SA carriage was 29.2%, and MRSA colonization prevalence was 1.2%. Within each chemical class, odds of SA colonization increased statistically significantly with exposure to mixtures of metals (OR = 1.11, 95% CI = 1.02-1.20), phthalates (OR = 1.09, 95% CI = 1.04-1.14), and phenols (OR = 1.08, 95% CI = 1.01-1.15). Exposure to a mixture of metals combined with PAHs was also associated with increased odds of MRSA carriage (OR = 1.38, 95% CI = 1.02-1.86). CONCLUSION: Results indicate an association between multiple environmental chemical mixtures and SA colonization, including MRSA. These findings support the need for further analysis of associations between chemical mixtures and SA colonization, as well as other components of the human microbiome.


Asunto(s)
Staphylococcus aureus Resistente a Meticilina , Infecciones Estafilocócicas , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Portador Sano , Niño , Femenino , Humanos , Persona de Mediana Edad , Encuestas Nutricionales , Prevalencia , Factores de Riesgo , Infecciones Estafilocócicas/epidemiología , Staphylococcus aureus , Adulto Joven
11.
Environ Health ; 19(1): 65, 2020 06 08.
Artículo en Inglés | MEDLINE | ID: mdl-32513280

RESUMEN

BACKGROUND: Pesticide exposure during susceptible windows and at certain doses are linked to numerous birth defects. Early experimental evidence suggests an association between active ingredients in pesticides and holoprosencephaly (HPE), the most common malformation of the forebrain in humans (1 in 250 embryos). No human studies to date have examined the association. This study investigated pesticides during multiple windows of exposure and fetal risk for HPE. It is hypothesized that pre-conception and early pregnancy, the time of brain development in utero, are the most critical windows of exposure. METHODS: A questionnaire was developed for this retrospective case-control study to estimate household, occupational, and environmental pesticide exposures. Four windows of exposure were considered: preconception, early, mid and late pregnancy. Cases were identified through the National Human Genome Research Institute's ongoing clinical studies of HPE. Similarly, controls were identified as children with Williams-Beuren syndrome, a genetic syndrome also characterized by congenital malformations, but etiologically unrelated to HPE. We assessed for differences in odds of exposures to pesticides between cases and controls. RESULTS: Findings from 91 cases and 56 controls showed an increased risk for HPE with reports of maternal exposure during pregnancy to select pesticides including personal insect repellants (adjusted odds ratio (aOR) 2.89, confidence interval (CI): 0.96-9.50) and insecticides and acaricides for pets (aOR 3.84, CI:1.04-16.32). Exposure to household pest control products during the preconception period or during pregnancy was associated with increased risk for HPE (aOR 2.60, OR: 0.84-8.68). No associations were found for occupational exposures to pesticides during pregnancy (aOR: 1.15, CI: 0.11-11.42), although exposure rates were low. Higher likelihood for HPE was also observed with residency next to an agricultural field (aOR 3.24, CI: 0.94-12.31). CONCLUSIONS: Observational findings are consistent with experimental evidence and suggest that exposure to personal, household, and agricultural pesticides during pregnancy may increase risk for HPE. Further investigations of gene by environment interactions are warranted.


Asunto(s)
Exposición a Riesgos Ambientales/efectos adversos , Holoprosencefalia/epidemiología , Plaguicidas/efectos adversos , Efectos Tardíos de la Exposición Prenatal/epidemiología , Adolescente , Adulto , Estudios de Casos y Controles , Femenino , Holoprosencefalia/inducido químicamente , Humanos , Masculino , Exposición Materna/efectos adversos , Exposición Profesional/efectos adversos , Embarazo/efectos de los fármacos , Efectos Tardíos de la Exposición Prenatal/inducido químicamente , Estudios Retrospectivos , Factores de Riesgo , Estados Unidos/epidemiología , Adulto Joven
12.
J Behav Med ; 43(4): 638-647, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-31197537

RESUMEN

Despite the health benefits of physical activity, many women remain inactive and the needs of rural women are understudied. To understand access to physical activity barriers, opportunities, and intervention preferences in rural women and determine how these differ by self-reported activity level. A mailed questionnaire was distributed to 900 rural women and included measures of physical activity, health status, barriers, opportunities for exercise, and preferences for intervention type, components, and delivery. Questionnaires were completed by 507 women; 72.0% reported meeting the physical activity guideline. Inactive women reported greater barriers to activity (higher scores on 18 of 22 barriers; p < 0.05), less access to or usage of 8 of 9 places to exercise (p < 0.05), and less belief in the relevance of physical activity to personal health (p < 0.001). Both inactive and active women were most interested in programs that use walking, yoga, or strength training. Physical activity interventions for rural women need to address their specific needs, including barriers to physical activity and lower access to places in which to be physically active.


Asunto(s)
Ejercicio Físico , Conducta Sedentaria , Adulto , Estudios Transversales , Femenino , Estado de Salud , Humanos , Persona de Mediana Edad , Población Rural , Encuestas y Cuestionarios
13.
Breast Cancer Res ; 21(1): 96, 2019 08 20.
Artículo en Inglés | MEDLINE | ID: mdl-31429809

RESUMEN

BACKGROUND: The long time from exposure to potentially harmful chemicals until breast cancer occurrence poses challenges for designing etiologic studies and for implementing successful prevention programs. Growing evidence from animal and human studies indicates that distinct time periods of heightened susceptibility to endocrine disruptors exist throughout the life course. The influence of environmental chemicals on breast cancer risk may be greater during several windows of susceptibility (WOS) in a woman's life, including prenatal development, puberty, pregnancy, and the menopausal transition. These time windows are considered as specific periods of susceptibility for breast cancer because significant structural and functional changes occur in the mammary gland, as well as alterations in the mammary micro-environment and hormone signaling that may influence risk. Breast cancer research focused on these breast cancer WOS will accelerate understanding of disease etiology and prevention. MAIN TEXT: Despite the plausible heightened mechanistic influences of environmental chemicals on breast cancer risk during time periods of change in the mammary gland's structure and function, most human studies of environmental chemicals are not focused on specific WOS. This article reviews studies conducted over the past few decades that have specifically addressed the effect of environmental chemicals and metals on breast cancer risk during at least one of these WOS. In addition to summarizing the broader evidence-base specific to WOS, we include discussion of the NIH-funded Breast Cancer and the Environment Research Program (BCERP) which included population-based and basic science research focused on specific WOS to evaluate associations between breast cancer risk and particular classes of endocrine-disrupting chemicals-including polycyclic aromatic hydrocarbons, perfluorinated compounds, polybrominated diphenyl ethers, and phenols-and metals. We outline ways in which ongoing transdisciplinary BCERP projects incorporate animal research and human epidemiologic studies in close partnership with community organizations and communication scientists to identify research priorities and effectively translate evidence-based findings to the public and policy makers. CONCLUSIONS: An integrative model of breast cancer research is needed to determine the impact and mechanisms of action of endocrine disruptors at different WOS. By focusing on environmental chemical exposure during specific WOS, scientists and their community partners may identify when prevention efforts are likely to be most effective.


Asunto(s)
Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/etiología , Exposición a Riesgos Ambientales/efectos adversos , Animales , Neoplasias de la Mama/prevención & control , Susceptibilidad a Enfermedades , Femenino , Humanos , Exposición Materna/efectos adversos , Menopausia , Embarazo , Pubertad , Investigación , Factores de Riesgo , Factores de Tiempo
14.
BMC Genet ; 19(Suppl 1): 65, 2018 09 17.
Artículo en Inglés | MEDLINE | ID: mdl-30255764

RESUMEN

BACKGROUND: Random forest (RF) is a machine-learning method that generally works well with high-dimensional problems and allows for nonlinear relationships between predictors; however, the presence of correlated predictors has been shown to impact its ability to identify strong predictors. The Random Forest-Recursive Feature Elimination algorithm (RF-RFE) mitigates this problem in smaller data sets, but this approach has not been tested in high-dimensional omics data sets. RESULTS: We integrated 202,919 genotypes and 153,422 methylation sites in 680 individuals, and compared the abilities of RF and RF-RFE to detect simulated causal associations, which included simulated genotype-methylation interactions, between these variables and triglyceride levels. Results show that RF was able to identify strong causal variables with a few highly correlated variables, but it did not detect other causal variables. CONCLUSIONS: Although RF-RFE decreased the importance of correlated variables, in the presence of many correlated variables, it also decreased the importance of causal variables, making both hard to detect. These findings suggest that RF-RFE may not scale to high-dimensional data.


Asunto(s)
Aprendizaje Automático , Islas de CpG , Metilación de ADN , Epigenómica , Estudio de Asociación del Genoma Completo , Genotipo , Humanos , Hipertrigliceridemia/tratamiento farmacológico , Hipertrigliceridemia/genética , Hipoglucemiantes/uso terapéutico , Polimorfismo de Nucleótido Simple , Triglicéridos/sangre
15.
Environ Health ; 17(1): 2, 2018 01 05.
Artículo en Inglés | MEDLINE | ID: mdl-29304819

RESUMEN

BACKGROUND: Heavy metals including lead and cadmium can disrupt the immune system and the human microbiota. and are increasingly of concern with respect to the propogation of antibiotic-resistence. Infection by methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of global morbidity and mortality. Heavy metal exposure may be associated with increased MRSA colonization and infection, and a decrease in methicillin-susceptible Staphylococcus aureus (MSSA) through co-selection mechanisms and natural selection of antibiotic resistance in the presence of heavy metals. This study examines the association between blood lead (Pb) and cadmium (Cd) level, and MRSA and MSSA nasal colonization. METHODS: All data used for this analysis came from the 2001-2004 National Health and Nutrition Examination Survey (NHANES). The analytical sample consisted of 18,626 participants aged 1 year and older. Multivariate logistic regression, including adjustment for demographic and dietary factors, was used to analyze the association between blood Pb and Cd, and nasal colonization by MRSA and MSSA. RESULTS: Prevalence of MRSA and MSSA carriage were 1.2%, and 29.3% respectively. MRSA was highest in women, individuals age 70 and older, who self-identified as black, had only a high school diploma, lived below 200% of the Federal Poverty Level, and had a history of smoking. While not significantly different from those colonized with MSSA, geometric mean blood Pb (1.74 µg/dL) and blood Cd (0.31 µg/L) were highest in those colonized with MRSA. Associations with MRSA colonization appeared to increase in a dose-dependent manner with increasing quartile of blood Pb level. Blood Cd level in the fourth quartile was also significantly associated with lower odds of MRSA colonization. Both metals were associated with lower odds of MSSA colonization. CONCLUSIONS: Both MRSA and MSSA results suggest that general population levels of blood Pb but not Cd are associated with differences in nasal carriage of S. aureus. While further research is needed, reduction in heavy metal exposures such as lead, concurrently with maintaining a healthy microbiota may be two modifiable options to consider in the fight against antibiotic-resistance.


Asunto(s)
Cadmio/sangre , Contaminantes Ambientales/sangre , Plomo/sangre , Infecciones Estafilocócicas/epidemiología , Staphylococcus aureus/aislamiento & purificación , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Persona de Mediana Edad , Encuestas Nutricionales , Prevalencia , Infecciones Estafilocócicas/microbiología , Estados Unidos/epidemiología , Adulto Joven
16.
Prev Med ; 99: 313-319, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28342730

RESUMEN

Current treatment for depression is not considered effective among all cases and, thus far, nutritional protocols are minimal within depression treatment guidelines. Recently, there has been increasing interest in a possible protective and modifiable role of diet in common mental disorders, including depression, due to pro- and anti-inflammatory properties of nutrients. This study aims to investigate whether the Dietary Inflammatory Index (DII), designed to estimate the inflammatory potential of diet, is associated with depression and other measures of mental health. In a representative sample of U.S. adults (≥20years of age, N=11,592), the distribution of DII score is assessed. Multivariate logistic regression models determine the association between DII quintile and depression. Associations of DII quintile with frequent distress and frequent anxiety are also evaluated. In fully adjusted models, higher DII score is associated with over a two-fold higher odds of depression (OR (95% CI)=2.26 (1.60, 3.20) for highest vs. lowest quintile, Type III p-value≤0.0001). DII score is also associated with higher odds of frequent distress (OR (95% CI)=1.81 (1.20, 2.71) for highest vs. lowest quintile, Type III p-value=0.0167). This association was not significant for frequent anxiety (Type III p-value=0.12). Results of this study indicate that dietary inflammatory potential is associated with depression. These results are consistent with existing hypotheses that inflammatory pathways play a role in the etiology of depression. Further research examining the underlying biological and cellular mechanisms of depression is warranted.


Asunto(s)
Depresión/psicología , Dieta , Inflamación , Salud Mental , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas Nutricionales , Estado Nutricional , Factores de Riesgo , Encuestas y Cuestionarios , Estados Unidos
17.
Environ Res ; 155: 77-85, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28193558

RESUMEN

BACKGROUND: Exposure to multiple types of air pollution may contribute to and exacerbate allergic diseases including asthma and wheezing. However, few studies have examined chronic air pollution exposure and allergic disease outcomes among an adult population. Associations between potential estimates of annual average fine particulate matter (PM2.5), traffic related air pollution, and industrial source air emissions and three allergic disease outcomes (asthma, allergies and wheezing) were examined in a state-wide general population of adults. METHODS: The study includes a representative sample of 3381 adult Wisconsin residents who participated in the 2008-2013 Survey of the Health of Wisconsin (SHOW) program. Participant data were geographically linked to The United States Environmental Protection Agency (USEPA) Baysian space-time downscaler air pollution model for PM2.5, the United States Census roadway, and USEPA's Toxic Release Inventory data. Self-report and lung function (FEV1) estimates were used to define prevalence of asthma, allergies and wheezing symptoms. RESULTS: Annual mean exposure to fine particulate matter (PM2.5) was between 6.59 and 15.14µg/m3. An increase of 5µg/m3 in the annual mean PM2.5 resulted in a 3.58 (2.36, 5.43) increase in the adjusted odds (95% CI) of having asthma. Exposure to vehicle traffic increased the odds of both current allergies [OR (95% CI)=1.35 (1.07, 1.35)] and current asthma [OR (95% CI)=1.51 (1.14, 2.00)]. Living within 300m of an Interstate roadway was associated with a 3-fold increase in the odds of asthma. Those living within 800m of an industrial site were 47% more likely to have asthma. No significant associations were seen with wheezing. CONCLUSIONS: Within this population exposed to overall annual average levels of estimated low level chronic exposure to fine particulate matter (PM2.5) at or near 12µg/m3, the USEPA standard for air quality, significant association between both modeled PM2.5 exposure and proximity to roadways with asthma and allergies but not wheezing were found. Industrial source emissions were not associated with any allergic disease outcomes.


Asunto(s)
Contaminantes Atmosféricos/análisis , Contaminación del Aire/análisis , Hipersensibilidad/epidemiología , Material Particulado/análisis , Adulto , Anciano , Monitoreo del Ambiente , Femenino , Volumen Espiratorio Forzado , Encuestas Epidemiológicas , Humanos , Hipersensibilidad/fisiopatología , Industrias , Masculino , Persona de Mediana Edad , Ruidos Respiratorios , Emisiones de Vehículos , Wisconsin/epidemiología , Adulto Joven
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Prev Med ; 93: 1-6, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27612573

RESUMEN

BACKGROUND: The social and economic environment has become a major area of interest regarding the determinants of cardiovascular health. Among markers of economic distress, food insecurity has been found associated with metabolic disorders, dyslipidemia, and obesity, but no previous studies have examined its association with overall cardiovascular health. METHODS AND RESULTS: We conducted a cross-sectional analysis among 2935 participants in the Survey of the Health of Wisconsin (SHOW), a statewide population-based representative sample. The presence of food insecurity was determined by an affirmative answer to the question "In the last 12months, have you been concerned about having enough food for you or your family?" Cardiovascular health (CVH) was defined based on the American Heart Association Life's Simple 7 criteria and classified as "poor," "intermediate," or "ideal" using previously published criteria. "Good" CVH was defined as having no poor in any of the seven criteria (any amount of intermediate or ideal). Crude and adjusted odds ratios (OR) of good CVH according to presence of food insecurity were calculated using logistic regression models. Overall, food insecurity was associated with a decreased likelihood of good CVH (OR 0.53; 95% Confidence Interval 0.31 to 0.92; p=0.02). This association persisted in models controlling for age, gender, race, and urbanization. CONCLUSIONS: Participants who were food insecure were significantly less likely to have good CVH compared to participants who were food secure. Even though this study cannot confirm causality, these results suggest that food insecurity might be one of several socio-economic barriers contributing to poor CVH.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Abastecimiento de Alimentos/estadística & datos numéricos , Adulto , Índice de Masa Corporal , Estudios Transversales , Femenino , Encuestas Epidemiológicas , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Fumar , Wisconsin/epidemiología
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