9 results on '"Carmen, Velez-Vega"'
Search Results
2. The association between urinary glyphosate and aminomethyl phosphonic acid with biomarkers of oxidative stress among pregnant women in the PROTECT birth cohort study
- Author
-
Jarrod L. Eaton, Amber L. Cathey, Jennifer A. Fernandez, Deborah J. Watkins, Monica K. Silver, Ginger L. Milne, Carmen Velez-Vega, Zaira Rosario, Jose Cordero, Akram Alshawabkeh, and John D. Meeker
- Subjects
Glyphosate ,AMPA ,Oxidative stress ,Birth cohort ,Environmental pollution ,TD172-193.5 ,Environmental sciences ,GE1-350 - Abstract
Background: Glyphosate is a widely used herbicide in global agriculture. Glyphosate and its primary environmental degradate, aminomethyl phosphonic acid (AMPA), have been shown to disrupt endocrine function and induce oxidative stress in in vitro and animal studies. To our knowledge, these relationships have not been previously characterized in epidemiological settings. Elevated urinary levels of glyphosate and AMPA may be indicative of health effects caused by previous exposure via multiple mechanisms including oxidative stress. Methods: Glyphosate and AMPA were measured in 347 urine samples collected between 16 and 20 weeks gestation and 24–28 weeks gestation from pregnant women in the PROTECT birth cohort. Urinary biomarkers of oxidative stress, comprising 8-isoprostane-prostaglandin-F2α (8-iso-PGF2α), its metabolite 2,3-dinor-5,6-dihydro-15-F2 t-isoprostane (8-isoprostane metabolite) and prostaglandin-F2α (PGF2α), were also measured. Linear mixed effect models assessed the association between exposures and oxidative stress adjusting for maternal age, smoking status, alcohol consumption, household income and specific gravity. Potential nonlinear trends were also assessed using tertiles of glyphosate and AMPA exposure levels. Results: No significant differences in exposure or oxidative stress biomarker concentrations were observed between study visits. An interquartile range (IQR) increase in AMPA was associated with 9.5% (95% CI: 0.5–19.3%) higher 8-iso-PGF2α metabolite concentrations. Significant linear trends were also identified when examining tertiles of exposure variables. Compared to the lowest exposure group, the second and third tertiles of AMPA were significantly associated with 12.8% (0.6–26.5%) and 15.2% (1.8–30.3%) higher 8-isoprostane metabolite, respectively. An IQR increase in glyphosate was suggestively associated with 4.7% (−0.9 to 10.7%) higher 8-iso-PGF2α. Conclusions: Urinary concentrations of the main environmental degradate of glyphosate, AMPA, were associated with higher levels of certain oxidative stress biomarkers. Associations with glyphosate reflected similar trends, although findings were not as strong. Additional research is required to better characterize the association between glyphosate exposure and biomarkers of oxidative stress, as well as potential downstream health consequences.
- Published
- 2022
- Full Text
- View/download PDF
3. Spatial-temporal targeted and non-targeted surveys to assess microbiological composition of drinking water in Puerto Rico following Hurricane Maria
- Author
-
Maria Sevillano, Solize Vosloo, Irmarie Cotto, Zihan Dai, Tao Jiang, Jose M. Santiago Santana, Ingrid Y. Padilla, Zaira Rosario-Pabon, Carmen Velez Vega, José F. Cordero, Akram Alshawabkeh, April Gu, and Ameet J. Pinto
- Subjects
Drinking water quality ,Hurricane Maria ,Metagenomics ,qPCR ,Genome-resolved metagenomics ,Environmental technology. Sanitary engineering ,TD1-1066 - Abstract
Loss of basic utilities, such as drinking water and electricity distribution, were sustained for months in the aftermath of Hurricane Maria's (HM) landfall in Puerto Rico (PR) in September 2017. The goal of this study was to assess if there was deterioration in biological quality of drinking water due to these disruptions. This study characterized the microbial composition of drinking water following HM across nine drinking water systems (DWSs) in PR and utilized an extended temporal sampling campaign to determine if changes in the drinking water microbiome were indicative of HM associated disturbance followed by recovery. In addition to monitoring water chemistry, the samples were subjected to culture independent targeted and non-targeted microbial analysis including quantitative PCR (qPCR) and genome-resolved metagenomics. The qPCR results showed that residual disinfectant was the major driver of bacterial concentrations in tap water with marked decrease in concentrations from early to late sampling timepoints. While Mycobacterium avium and Pseudomonas aeruginosa were not detected in any sampling locations and timepoints, genetic material from Leptospira and Legionella pneumophila were transiently detected in a few sampling locations. The majority of metagenome assembled genomes (MAGs) recovered from these samples were not associated with pathogens and were consistent with bacterial community members routinely detected in DWSs. Further, whole metagenome-level comparisons between drinking water samples collected in this study with samples from other full-scale DWS indicated no significant deviation from expected community membership of the drinking water microbiome. Overall, our results suggest that disruptions due to HM did not result in significant and sustained deterioration of biological quality of drinking water at our study sites.
- Published
- 2021
- Full Text
- View/download PDF
4. A Hybrid Approach to Identifying Key Factors in Environmental Health Studies.
- Author
-
Shi Dong 0002, Zlatan Feric, Xiangyu Li 0006, Sheikh Mokhlesur Rahman, Guangyu Li, Chieh Wu, April Z. Gu, Jennifer G. Dy, David R. Kaeli, John Meeker, Ingrid Y. Padilla, José Cordero, Carmen Velez Vega, Zaira Rosario, and Akram Alshawabkeh
- Published
- 2018
- Full Text
- View/download PDF
5. An Efficient Data Management Framework for Puerto Rico Testsite for Exploring Contamination Threats (PROTECT).
- Author
-
Shi Dong 0002, Zlatan Feric, Leiming Yu, David R. Kaeli, John Meeker, Ingrid Y. Padilla, José Cordero, Carmen Velez Vega, Zaira Rosario, and Akram Alshawabkeh
- Published
- 2018
- Full Text
- View/download PDF
6. Associations of Prenatal Metal Exposure and Non-nutritive Suck Among Infants from the Puerto Rico Testsite for Exploring Contamination Threats (PROTECT) Birth Cohort Study
- Author
-
Christine Kim, Deborah Watkins, Emily Zimmerman, Bhramar Mukherjee, Zaira Rosario-Pabon, Carmen Velez-Vega, Akram Alshawabkeh, Jose Cordero, and John Meeker
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Published
- 2022
- Full Text
- View/download PDF
7. Analyzing open-ended questions in research: A commonly used category selection methodology
- Author
-
Luis D. Agosto Arroyo, Angerica Fitzmaurice, Zlatan Feric, David Kaeli, John Meeker, Carmen Velez Vega, Akram Alshawabkeh, José F. Cordero, and Nancy R. Cardona-Cordero
- Abstract
A closer examination of consumer product brands and how they are associated with levels of potential endocrine disrupting chemicals should be explored. The large number of brands available and changes in consumer preferences for certain brands makes it difficult to develop questionnaires that include all brands. Open-ended brand reporting questions are an option, but they bring challenges in identifying each brand given the multiple possibilities of variations in brand name reporting. We report a method for transforming product brand data reported as text to brand codes that allows quantitative analysis of brand use and its association with endocrine disrupting chemicals. We selected 14 consumer products to be included in our analyses. To evaluate commonly used brand selection, we used Cohen’s power calculations for two-sample t-tests in R (version 1.3.0). Considering a moderate effect size (Cohen’s d) of 0.5, each test will include the most used brand and the least used brand among the commonly used brands per product and visit. We compared how the commonly used brand selection differ per product in terms of the number of brands it selected, the total sample size and the power calculated by creating a correlation matrix and analyzing the relationship between power, commonly used brands, and brand usage. The correlation coefficient between the commonly used brand frequency of each visit approximated 0.99. From all products, fabric softener, conditioner, and lotion where the products that attained the highest power. The differences in brand use distributions per product provided an optimal environment for evaluating the performance of the commonly used brand selection methodology. It provides enough flexibility when selecting exposure groups that it could be applied to any open-ended questions, and it proves significantly useful when accounting for repeated measures.
- Published
- 2022
- Full Text
- View/download PDF
8. COVID-19 Pandemic Experiences and Symptoms of Pandemic-Associated Traumatic Stress Among Mothers in the US
- Author
-
Theresa M, Bastain, Emily A, Knapp, Andrew, Law, Molly, Algermissen, Lyndsay A, Avalos, Zoe, Birnhak, Courtney, Blackwell, Carrie V, Breton, Cristiane, Duarte, Jean, Frazier, Jody, Ganiban, Paige, Greenwood, Julie, Herbstman, Ixel, Hernandez-Castro, Julie, Hofheimer, Margaret R, Karagas, Johnnye, Lewis, David, Pagliaccio, Bruce, Ramphal, Darby, Saxbe, Rebecca, Schmidt, Carmen, Velez-Vega, Xiaodan, Tang, Ghassan B, Hamra, and Amy, Margolis
- Subjects
Adult ,Cohort Studies ,Adaptation, Psychological ,Humans ,COVID-19 ,Mothers ,Female ,General Medicine ,Child ,Pandemics - Abstract
ImportanceThe primary outcomes of the COVID-19 pandemic on the mental health of women with children remain largely unknown.ObjectivesTo identify and describe clusters of mothers of children participating in the Environmental influences on Child Health Outcomes (ECHO) Program that characterize pandemic-associated hardships, coping mechanisms, and behaviors, and to evaluate associations between pandemic-associated hardships, coping strategies, and behavior changes with pandemic-associated traumatic stress symptoms.Design, Setting, and ParticipantsThis multicenter cohort study investigated experiences during the COVID-19 pandemic between April 2020 and August 2021 among maternal caregivers of children participating in the ECHO Program. Data from self-identified mothers of ECHO-enrolled children from 62 US cohorts were included in analyses. Data were analyzed from November 2021 to July 2022.ExposuresThe primary exposures were pandemic-associated changes in mothers’ health, health care utilization, work and finances, coping strategies, and health-associated behaviors. Exposures were assessed via a self-reported questionnaire designed by ECHO investigators.Main Outcomes and MeasuresThe primary outcome was the total symptoms score of pandemic-associated traumatic stress (PTS), defined as the number of items endorsed at least sometimes or more frequently, from a 10-item self-report measure.ResultsThe study surveyed 11 473 mothers (mean [SD] age, 37.8 [7.4] years; 342 American Indian [2.98%], 378 Asian [3.29%], 1701 Black [14.83%], and 7195 White [62.71%]; 2184 with Hispanic/Latina ethnicity [19.04%]) and identified 2 clusters that best characterized their COVID-19 pandemic experiences—one characterized by higher life disruptions (eg, to work and health care), higher social isolation, more coping behaviors to mitigate the outcomes of the pandemic, and more changes to their health behavior routines (high change [1031 mothers]) and the other characterized by lower changes (low change [3061 mothers]). The high change cluster was more socioeconomically advantaged and reported higher PTS (mean [SD] number of symptoms, 3.72 [2.44] vs 2.51 [2.47]). Across both clusters, higher pandemic-associated hardships, coping mechanisms, and behavior changes were associated with higher PTS, and these associations were greater in the low change cluster.Conclusions and RelevanceIn this study of more than 11 000 US mothers, associations between socioeconomic factors, stressful life events, and mental health sequelae were complex. Accordingly, programs, policies, and practices targeting mental health during public health crises such as the COVID-19 pandemic should consider the range and configuration of hardships in designing the most effective interventions to mitigate long-term outcomes.
- Published
- 2022
- Full Text
- View/download PDF
9. 2492
- Author
-
Timothy De Ver Dye, Thomas Fogg, Margaret Demment, José Pérez-Ramos, Scott McIntosh, Deborah Ossip, Angela Sy, Carmen Velez Vega, Karen Peters, and Haq Nawaz
- Subjects
Medicine - Abstract
OBJECTIVES/SPECIFIC AIMS: The objective of this partnership was to create a global network of clinical and public health researchers and communities conducting technology-assisted research in noncommunicable disease. METHODS/STUDY POPULATION: The University of Rochester’s Clinical and Translational Science Institute (CTSI) has successfully leveraged the informatics core’s capacity into an emerging network of organizations that focus on technology and health in settings outside of the mainland United States. The CTSI coordinated with another NIH-funded infrastructure program [the RCMI Translational Research Network (RTRN)] to identify partner institutions interested in technology and health. RTRN identified the University of Puerto Rico and the University of Hawaii, both of which serve as hubs for common research interests in technology and health throughout the Caribbean and the Pacific. This network was formalized as the CDC’s Coordinating Center for its Global and Territorial Health Research Network (the “Global Network”), with additional US partners (Yale, University of Illinois at Chicago, University of North Caroline Chapel Hill, and the University of South Florida) within a wider scope of the CDC’s Prevention Research Centers (PRC) program. RESULTS/ANTICIPATED RESULTS: Through combining 2 main NIH-funded research infrastructure networks (CTSA and RTRN), with a large CDC-funded PRC, the University of Rochester’s Informatics Core was successful in establishing a new productive global health network throughout Latin America and the Caribbean, and in the Pacific, garnering additional research support from NIH Fogarty and other programs. The resulting network not only supports locally-important research in technology and health on compelling health issues (eg, diabetes, ZIka, participation in research), but also facilitates community engagement through local partnerships and the cores of the involved networks. In addition, much of the information and communications technology (ICT)-related research and learnings from the Global Network activity is immediately applicable to populations in the United States, served by the various collaborative networks. In total, while new, the Global Network supports a wide range of projects and engagements throughout the world that expand local informatics capacity and use of technology in the research process and to address global health problems, further enhancing the CTSI’s informatics core to serve the needs of its own constituency and promote research engagement with technology within this population. Local research collaborative projects reinforce the utility of the network and its resources, evidenced by tools, publications, partnerships, and conference presentations that have arisen. Lessons to date from this Global Network collaboration include: specific global research projects provide opportunities for partnership building and meaningful collaboration, team science is of central importance in distributing the work of the network, synergy is multidirectional with expertise and need flowing in all directions, and project team members in all locales learned and contributed substantially in ways that carried into their other responsibilities. DISCUSSION/SIGNIFICANCE OF IMPACT: The overall partnership has created opportunity for South-South collaboration, for adaptation of projects among locales, and has helped boost reputational value for all partners involved. Implications for other CTSA awardees include: global collaboration can serve core research and technical needs for the CTSA itself and its local partners, CTSA status can be leveraged to access resources to support local research, and collaboration in other federally-funded research networks helps expand the insight, scope, and potential for new research.
- Published
- 2017
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.