Published in Frontiers in Environmental Chemistry
Methylmercury (MeHg) is a neurotoxin that bioaccumulates to potentially harmful concentrations in Arctic and Subarctic marine predators and those that consume them. Monitoring and modeling MeHg bioaccumulation and biogeochemical cycling in the ocean requires an understanding of the mechanisms behind net mercury (Hg) methylation. The key functional ...
Climate change is transforming bioenergetic landscapes, challenging behavioral and physiological coping mechanisms. A critical question involves whether animals can adjust behavioral patterns and energy expenditure to stabilize fitness given reconfiguration of resource bases, or whether limits to plasticity ultimately compromise energy balance. In ...
peer reviewed / We present here an innovative use of stable isotopes ratios of carbon (δ13C), nitrogen (δ15N) and sulphur (δ34S) combined with mercury (THg) and selenium (Se) concentrations in seal body tissues as ecological tracers of harbour and grey seal foraging activities and exposure to Hg. SIBER (Stable Isotope Bayesian Ellipes) allows the u...
Published in Frontiers in Analytical Science
Mercury (Hg) pollution is of global concern. Despite the prolificity of research in the past two decades or so, there are still several uncertainties and variabilities in our knowledge of both the element’s exposure dynamics and its health effects. Understanding the intricacies of the element’s emissions-to-impact path, for instance, is rendered in...
Published in Frontiers in Environmental Science
Boreal peatlands are considered sinks for atmospheric mercury (Hg) and are important sources of methylmercury (MeHg) to downstream ecosystems. Climate change-driven increases in average annual temperature in coming decades will be amplified at higher latitudes and will modify many biogeochemical processes in high boreal and subarctic peatlands that...
Published in Frontiers in Immunology
Kawasaki disease (KD) is a multisystem vasculitis that predominantly targets the coronary arteries in young children. Epidemiological data suggest both environmental and genetic factors contribute to the susceptibility and severity of the disease. Mercury (Hg) is a known environmental pollutant and a Ca2+ signaling modulator. Ca2+ signaling regulat...
Published in IOP Conference Series: Earth and Environmental Science
The former gold mining land is a land that has a deficient fertility level and is contained heavy metals such as mercury (Hg). The purpose of this research is to study the role of biochar, manure, and clay and the role of sunflowers in reducing mercury (Hg) in the restoration of the former gold mining land. The researcher used a random design metho...
Published in Frontiers in Public Health
Although there is evidence that mercury (Hg) exposure may be a potential risk factor for cardiovascular disease (CVD), few nationwide epidemiological researches have analyzed the association between blood Hg concentration and serum high-sensitivity C-reactive protein (hs-CRP) level as a biomarker of CVD. The present population-based national study ...
Published in Applied and Environmental Microbiology
The hgcAB gene pair encodes mercury (Hg) methylation capability in a diverse group of microorganisms, but its evolution and transcriptional regulation remain unknown. Working from the possibility that the evolutionary function of HgcAB may not be Hg methylation, we test a possible link to arsenic resistance. Using model Hg methylator Pseudodesulfov...
Published in Frontiers in Physiology
The freshwater gastropod Pomacea canaliculata fulfills the ideal conditions of a bioindicator species since its digestive gland bioconcentrates elements toxic for human and ecosystems health. The aim of this work was to study the balance between production of free radicals and antioxidant defenses, and the generation of oxidative damage in the dige...
