Returning results to participants of environmental exposure studies has become more common in recent years. Despite evidence of benefits for study participants, there are challenges in communicating results to people with limited resources or capacity to mitigate chemical exposures. We interviewed N = 54 participants and compared exposure report-back conducted in 2010-2013 across three susceptible study populations: 1) low-income pregnant individuals in the Chemicals in Our Bodies (CIOB) study; 2) the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) cohort; and 3) early childhood educators (ECE).
View Article and Find Full Text PDFBackground: Chemicals that induce mammary tumors in rodents or activate estrogen or progesterone signaling are likely to increase breast cancer (BC) risk. Identifying chemicals with these activities can prompt steps to protect human health.
Objectives: We compiled data on rodent tumors, endocrine activity, and genotoxicity to assess the key characteristics (KCs) of rodent mammary carcinogens (MCs), and to identify other chemicals that exhibit these effects and may therefore increase BC risk.
Environ Health Perspect
December 2023
Background: The practice of reporting back individual results to participants in environmental health research has evolved significantly over the past 20 years. Research findings support the potential of report-back to enhance the ethics, quality, and impact of environmental health research. Nonetheless, implementation of environmental health report-back practices is not yet routine.
View Article and Find Full Text PDFBackground: To make informed decisions about endocrine-disrupting chemicals (EDCs), people need functional understanding of exposures and health and an ability to act on their knowledge. The return of biomonitoring results is an opportunity to educate people about EDCs and motivate exposure reduction.
Objectives: This study investigates environmental health knowledge about EDCs, concerns about health effects, and exposure-reducing behaviors before and after the return of individual-level exposure results or only study-wide results.
Environ Health
August 2023
Background: We report on community-based participatory research (CBPR) initiated by women firefighters in order to share successful elements that can be instructive for other community-engaged research. This CBPR initiative, known as the Women Worker Biomonitoring Collaborative (WWBC) is the first we are aware of to investigate links between occupational exposures and health outcomes, including breast cancer, for a cohort of exclusively women firefighters.
Methods: In order to be reflective of the experiences and knowledge of those most intimately involved, this article is co-authored by leaders of the research initiative.
PLOS Digit Health
January 2023
Background: The PROTECT Center is a multi-project initiative that studies the relationship between exposure to environmental contaminants and preterm births during the prenatal and postnatal period among women living in Puerto Rico. PROTECT's Community Engagement Core and Research Translation Coordinator (CEC/RTC) play a key role in building trust and capacity by approaching the cohort as an engaged community that provides feedback about processes, including how personalized results of their exposure to chemicals should be reported back. The goal of the Mi PROTECT platform was to create a mobile-based application of DERBI (Digital Exposure Report-Back Interface) for our cohort that provides tailored, culturally appropriate information about individual contaminant exposures as well as education on chemical substances and approaches to exposure reduction.
View Article and Find Full Text PDFParticipants in biomonitoring studies who receive personal exposure reports seek information to reduce exposures. Many chemical exposures are driven by systems-level policies rather than individual actions; therefore, change requires engagement in collective action. Participants' perceptions of collective action and use of report-back to support engagement remain unclear.
View Article and Find Full Text PDFBackground: Study participants want to receive their biomonitoring results for environmental chemicals, and ethics guidelines encourage reporting back. However, few studies have quantitively assessed participants' responses to individual exposure reports, and digital methods have not been evaluated.
Objectives: We isolated effects of receiving personal results vs.
J Expo Sci Environ Epidemiol
November 2022
Background: Individuals living in the same home may share exposures from direct contact with sources or indirectly through contamination of the home environment.
Objective: We investigated the influence of sharing a home on urine levels of ten phenolic chemicals present in some consumer products.
Methods: We used data from Silent Spring Institute's Detox Me Action Kit (DMAK), a crowdsourced biomonitoring program in the US.
Nearly all Americans have detectable concentrations of endocrine disrupting chemicals from consumer products in their bodies, and expert panels recommend reducing exposures. To inform exposure reduction, we investigated whether consumers who are trying to avoid certain chemicals in consumer products have lower exposures than those who are not. We also aimed to make exposure biomonitoring more widely available.
View Article and Find Full Text PDFThe 2010 report of the President's Cancer Panel concluded that the burden of cancer from chemical exposures is substantial, while the programs for testing and regulation of carcinogens remain inadequate. New research on the role of early life exposures and the ability of chemicals to act via multiple biological pathways, including immunosuppression, inflammation, and endocrine disruption as well as mutagenesis, further supports the potential for chemicals and chemical mixtures to influence disease. Epidemiologic observations, such as higher leukemia incidence in children living near roadways and industrial sources of air pollution, and new technologies that decode carcinogenesis at the molecular level, illustrate the diverse evidence that primary prevention of some cancers may be achieved by reducing harmful chemical exposures.
View Article and Find Full Text PDFIn response to participant preferences and new ethics guidelines, researchers are increasingly sharing data with health study participants, including data on their own household chemical exposures. Data physicalization may be a useful tool for these communications, because it is thought to be accessible to a general audience and emotionally engaged. However, there are limited studies of data physicalization in the wild with diverse communities.
View Article and Find Full Text PDFLittle is known about the willingness of prospective study participants to share environmental health data. To fill this gap, we conducted a hypothetical vignette survey among 1,575 women who have volunteered to be contacted about breast cancer studies. Eighty-three percent were interested in participating in the environmental studies, with little difference whether data were restricted to the research team, shared with approved researchers, or publicly accessible.
View Article and Find Full Text PDFBackground: Breast cancer is the most commonly diagnosed cancer among women worldwide and most cases are not due to high risk inherited genes. In response, breast cancer activists successfully advocated for innovative research on environmental chemical exposures as a possible cause. Since then, new evidence supports hypotheses that common industrial and consumer chemicals are linked to the disease, and expert panels recommend reducing exposures.
View Article and Find Full Text PDFEnviron Health Perspect
January 2020
Background: Sharing research data uses resources effectively; enables large, diverse data sets; and supports rigor and reproducibility. However, sharing such data increases privacy risks for participants who may be re-identified by linking study data to outside data sets. These risks have been investigated for genetic and medical records but rarely for environmental data.
View Article and Find Full Text PDFPer- and polyfluoroalkyl substances (PFASs) are used in a wide range of consumer products for their water- and grease-resistant properties, but few studies have explored this exposure route. We used multiple regression to investigate associations between six self-reported behaviors hypothesized to influence PFAS exposure and serum concentrations of six PFAS chemicals in 178 middle-aged women enrolled in the Child Health and Development Studies, about half of whom are African American. Blood samples were collected in 2010-2013, and participants were interviewed about behavior in 2015-2016.
View Article and Find Full Text PDFEnviron Health
May 2018
Background: Emerging evidence about the effects of endocrine disruptors on asthma symptoms suggests new opportunities to reduce asthma by changing personal environments. Right-to-know ethics supports returning personal results for these chemicals to participants, so they can make decisions to reduce exposures. Yet researchers and institutional review boards have been reluctant to approve results reports in low-income communities, which are disproportionately affected by asthma.
View Article and Find Full Text PDFBackground: Personal care products are a source of exposure to endocrine disrupting and asthma-associated chemicals. Because use of hair products differs by race/ethnicity, these products may contribute to exposure and disease disparities.
Objective: This preliminary study investigates the endocrine disrupting and asthma-associated chemical content of hair products used by U.
In the United States, breast cancer is the most common invasive malignancy and the second most common cause of death from cancer in women. Reproductive factors, estrogen, and progesterone have major causal roles, but concerns about other potential causes in the external environment continue to drive research inquiries and stimulate calls for action at the policy level. The environment is defined as anything that is not genetic and includes social, built, and chemical toxicant aspects.
View Article and Find Full Text PDFProtection of human subjects in research typically focuses on extrinsic rather than intrinsic motivations for participation in research. Recent sociological literature on altruism suggests that multiple kinds of altruism exist and are grounded in a sense of connection to common humanity. We interviewed participants in eight community-centered research studies that sampled for endocrine disrupting compounds and that shared research findings with participants.
View Article and Find Full Text PDFBackground: Many common environmental chemicals are mammary gland carcinogens in animal studies, activate relevant hormonal pathways, or enhance mammary gland susceptibility to carcinogenesis. Breast cancer's long latency and multifactorial etiology make evaluation of these chemicals in humans challenging.
Objective: For chemicals previously identified as mammary gland toxicants, we evaluated epidemiologic studies published since our 2007 review.
Researchers and clinicians in environmental health and medicine increasingly show respect for participants and patients by involving them in decision-making. In this context, the return of personal results to study participants is becoming ethical best practice, and many participants now expect to see their data. However, researchers often lack the time and expertise required for report-back, especially as studies measure greater numbers of analytes, including many without clear health guidelines.
View Article and Find Full Text PDFResearchers are increasingly asked to share research data as part of publication and funding processes and to maximize the benefits of publicly funded research. The Safe Harbor provision of the U.S.
View Article and Find Full Text PDF