We analyze the joint effect of contaminants and nutrient loading on population dynamics of marine food chains by means of bifurcation analysis. Contaminant toxicity is assumed to alter mortality of some species with a sigmoidal dose-response relationship. A generic effect of pollutants is to delay transitions to complex dynamical states towards higher nutrient load values, but more counterintui...

1. Source of contaminant release into the environment. 2. Environmental media (including groundwater, surface water, air, soil, sediment, household dust, biota) serve to move contaminants from the source to points where human exposure can occur. 3. Point of exposure (a location where humans contact a contaminated medium, such as a playground, water body, well water, and food services). 4. Route...

Physiological regulations of energy balance and body weight imply highly adaptive mechanisms which match caloric intake to caloric expenditure. In the central nervous system, the regulation of appetite relies on complex neurocircuitry which disturbance may alter energy balance and result in anorexia or obesity. Deoxynivalenol (DON), a trichothecene, is one of the most abundant mycotoxins found ...

j Abstract Objective The aim was to investigate the hypothesis that patients with first episode schizophrenic disorders have a more favorable treatment response than those with multiple episodes. Method A total of 400 inpatients from an ongoing multi-centre, follow-up program who fulfilled ICD-10 criteria for schizophrenic disorders (F2) were assessed at admission to and discharge from hospital...

Food consumption is an important route of human exposure to pesticides and industrial pollutants. Average dietary exposures to 37 pollutants were calculated for the whole United States population and for children under age 12 years by combining contaminant data with food consumption data and summing across food types. Pollutant exposures were compared to benchmark concentrations, which are base...

An increasing number of human beings from developed countries are colonized by Escherichia coli strains producing colibactin, a genotoxin suspected to be associated with the development of colorectal cancers. Deoxynivalenol (DON) is the most prevalent mycotoxin that contaminates staple food-especially cereal products-in Europe and North America. This study investigates the effect of the food co...

In this study, undertaken to identify the cause of allergy in several upholstery workers in a furniture factory, the workers were handling several different materials, including glue, silicone spray, upholstery fabrics, and felt. Radio-allergo-sorbent test (RAST) assays showed that sera from sensitised workers contained specific IgE towards the felt; however, further investigations using RAST s...

Background Arctic residents can be exposed to a wide range of contaminants through consumption of traditional (country) foods (i.e. food from wild animals and plants that are hunted, caught or collected locally in the Arctic). Yet these foods provide excellent nutrition, promote social cohesion, meet some spiritual needs for connectedness to the land and water, reinforce cultural ties, are econ...

1 Mycotoxin patulin Mycotoxins are low-molecular-weight toxic chemical compounds with low volatility, representing secondary metabolites produced by certain filamentous fungi that colonize crops, in the field or post-harvest, capable of causing disease and death in humans and animals through the ingestion of contaminated food products (Cunha et al., 2014). Contamination of food and agricultural...