Associations of combined exposure to selected metal mixtures with thyroid hormones in children: a cross-sectional study in China.

Background: Exposure to several metal elements has been found to be associated with thyroid hormone homeostasis. However, evidence for combined exposure is inconclusive, especially for children.

Objective: To examine the individual and joint effects of blood metal elements on thyroid hormones in children.

Exposure to ambient air pollutants is associated with an increased incidence of hyperuricemia: A longitudinal cohort study among Chinese government employees.

Background: It is widely recognized that ambient air pollution can induce various detrimental health outcomes. However, evidence linking ambient air pollutants and hyperuricemia incidence is scarce.

Objectives: To assess the association between long-term air pollution exposure and the risk of hyperuricemia.