View clinical trials related to Environmental Exposure.
Filter by:Plastic products have been used ubiquitously in the modern world for many decades - for example as packaging materials, textile fibers or molded parts. The general use and especially the improper disposal lead to enormous environmental pollution almost everywhere on earth. Microplastics mainly originate from fragmentation of larger plastic objects or can be produced directly for the use in e.g. cosmetics or industrial dyes. Microplastics have already been detected in fresh- and seawater, soil, food, but also in human blood and urine. The accumulation of microplastics in ovarian and testicular tissue in humans has not yet been investigated.
Personal exposure to air pollution results from the interaction of individual time-activity patterns with levels of air pollution that vary over time and space. The increasing use of personal monitors capable of measuring geo-located and real-time air pollution in epidemiologic studies requires novel human subject considerations. Reporting individual exposure data back to participants is considered best practice in environmental health research using biomonitoring data and is beneficial to both study participants and researchers. The investigators believe that providing individual results of personal air monitoring may be more informative than biomonitoring data given the potential to increase participants' awareness of their exposure, identify specific locations and times of elevated exposures, and inform behavioral changes to decrease exposure and risk of adverse health outcomes.
The goal of this cluster-randomized trial in rural Guatemala is to assess intervention strategies to reduce plastic burning in 8 intervention villages compared to 8 control villages. The intervention group participants will participate in 12 weekly behavioral working group sessions; the control group will not receive any specific activities. Two hundred women of reproductive age as well as other community members from these villages will be enrolled in each group. The follow-up period is 12 months. A Community Advisory Board will be formed in order to provide input on study activities, evaluate working group intervention strategies, and discuss the potential to expand activities regionally. Data will be collected via interviews, focus groups, air pollution sampling, plastic waste collection, urinary biomarker assessments, and ambient air sampling. Program evaluation and results dissemination will occur in the last year of the project.
To quantify health effects of synergizing chemical and biological pollutants in a targeted population setting, i.e., school-aged children. Indoor air pollutants will be monitored within the classrooms with high end sensors. Exposure data from additional sources (outdoor, home, transports) will be obtained. Health outcomes will be assessed prospectively using validated medical procedures and real-time tracking with mobile health (mHealth) equipment and a gamified computer app.
Exposure to adverse environments such as socioeconomic disadvantage and psychosocial deprivation are risk-factors for neurodevelopmental problems in childhood. Children exposed to such environments may benefit from interventions that target social-communication abilities, since these skills act as protective factors for healthy neurodevelopment in vulnerable children. One early childhood intervention that has shown efficacy in improving early social-communication development is Paediatric Autism Communication Therapy (PACT). However, there are no studies testing the efficacy of PACT in Latin American countries where environmental risk factors are common. This randomized controlled trial will test the efficacy of PACT in improving social-communication development in young children at risk for neurodevelopmental difficulties due to living in socio-economically disadvantaged regions of São Paulo, Brazil. Methods: Participants will be 160 children aged 2 years 0 months to 4 years 11 months with low social-communication abilities and their primary caregivers. Child-caregiver dyads will be recruited from public early childhood education centers in impoverished urban regions of the city of São Paulo, Brazil. Low social-communication abilities will be defined by Standard Scores <84 on the Socialization and/or Communication domains of the Vineland Adaptive Behavior Scales. Child-caregiver dyads will be randomized to receive 12 sessions (five months) of the PACT intervention (N=80) or five months of community support as usual plus psychoeducation (N=80). The primary outcome (parent-child interaction) and secondary outcomes (social-communication abilities assessed with the Vineland, neurophysiological activity during a live social interaction) will be measured pre- and post-intervention. All procedures will be performed in accordance with the CONSORT declaration for non-pharmacological interventions.
The investigators pilot test an intervention to understand the spatial-temporal distribution of aggregated environmental noise exposure in Philadelphia and its impact on health.
Polar stays expose people to extreme climate, isolation and confinement. The combination of these factors induces psychological disorders, sleep disorders, immune and endocrine disturbances, and deficiencies. In the TAAF, (French Southern and Antarctic Lands) two types of population coexist: winter residents, exposed to these stressors over long periods, and country people, who benefit from milder conditions and only make short stays. In this context, the investigators have decided to set up this cohort study with the objective of comparing the state of health of the winterers of the TAAF from 2012 to 2017 with that of the country people of the same period, before their stay, during and the year following their return.
1. Purpose: To confirm the changes in lifestyle due to differences in perceptions of infectious disease risk after the COVID-19 pandemic, decrease in exposure levels of environmentally hazardous chemicals and changes in indicators related to chronic kidney disease 2. Methods: - Survey on health risk awareness and lifestyle for COVID-19 - Blood and urine tests for exposure to environmentally hazardous chemicals - Collection of hospital clinical data utilization for indicators related to chronic kidney disease 3. Clinical endpoints: - Verification of differences in health risk perception level and lifestyle changes - Verification of changes in lifestyle changes and exposure to environmentally hazardous chemicals - Verification of changes in indicators related to kidney disease according to changes in exposure to environmentally hazardous chemicals 4. Statistical methods: chi-square test, independent mean comparison t-test, ANOVA test, regression analysis
The investigators pilot test two intervention strategies to increase green space use- place-based and person-based, as well as evaluate the dose-response relationship between green space use and health.
The main objective of the pilot phase of PGLEXPO will be to assess the faisability and to precise methodology of a case-control study designed for testing the impact of environmental and professional exposures on the tumoral risk in SDHx-mutation carriers