Author Interviews, Environmental Risks, JAMA, Pediatrics / 24.08.2020
Children Residing at Higher Altitudes Are Born Shorter and Have Lower Growth Trajectory
MedicalResearch.com Interview with:
Kaleab Baye PhD
Center for Food Science and Nutrition
Addis Ababa University
MedicalResearch.com: What is the background for this study?
Response: Reducing child stunting is one of the most important objectives of the Sustainable development goals (SDGs) and the World Health Assembly (WHA). Progress is routinely measured using anthropometric indices such as height-for-age z score that compare child height to the World Health Organization (WHO) growth standards. Such comparisons rely on the assumption that children living in ideal home environment that promotes adequate growth have the same growth potential, irrespective of their genetic make-up. This assumption was confirmed by the Multicenter Growth Reference Study (MGRS), which was the origin of the development of the growth standards. However, the MGRS excluded sites above 1500 m above sea level (asl); hence, it remains unclear whether the widely adopted WHO growth standards are applicable to populations above the 1500 m asl threshold.
This study investigated the association between altitude and linear growth faltering and evaluated whether the prescriptive WHO growth standards can apply to children residing at higher altitudes.
Ning Ding[/caption]
Ning Ding MPH, PhD candidate
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Dr. Wiener and Christopher Waters, Research Labs Director, WVU School of Dentistry[/caption]
R. Constance Wiener, DMD, PhD
Associate Professor
West Virginia University School of Dentistry
MedicalResearch.com: What is the background for this study?
Response: Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are chemical groups that have had a wide variety of uses due to their ability to their ability to repel water and stains. They might be found in food packaging, water-repellant clothing and carpeting, paints, fire-fighting foam, and water, for example. Although many are no longer manufactured in the United States, PFAS persist in the environment as they do not readily break down. Adverse health effects have been speculated especially for low birthweight babies, immunological effects, certain cancers and thyroid hormone disruption.1 With these considerations, we hypothesized that there may be an association of PFAS with tooth development and subsequent dental caries (cavities).
MedicalResearch.com: What is the background for this study?
Response: A prior pilot





Dr. Taioli[/caption]
Emanuela Taioli, MD, PhD,
Director of the Institute for Translational Epidemiology
Icahn School of Medicine at Mount Sinai
Asociate director for Population Science
Tisch Cancer Institute
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: An excess incidence of prostate cancer has been identified among World Trade Center responders. We wanted to study if this excess was associated with exposure to WTC dust
The results suggest that respiratory exposure to WTC dust can induce inflammatory and immune responses in prostate tissue. Chronic inflammation could facilitate prostate cancer development
Taken together, our results suggest that World Trade Center prostate cancer cases have a distinct gene expression pattern that may be the result of exposure to specific carcinogens during the WTC attacks. WTC dust-exposed rat prostate displayed unique changes in gene expression and immune cell infiltrates after acute dust exposure, suggesting that the effect of exposure may be measured locally in target organs such as prostate. In addition, some of the genes overexpressed in rat normal prostates as a consequence of exposure are also overexpressed in human prostate cancer tissues, suggesting a link between exposure, local immune dysregulation, and prostate cancer development