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Oral Session 3 - Toxicology and risk assessment
The third session was chaired by Philippe Grandjean and Erik H. Larsen. The pitfalls in assessing adverse health effects of methylmercury in seafood and gender differences in susceptibility to cadmium in food were discussed by Philippe Grandjean and Marie Vahter, respectively.
Chunying Chen reviewed the applications of nanotechnology in the food industry and the toxicological issues surrounding nanomaterials.
Arsenic speciation and toxicology were addressed in relation to seafood (Kevin Francesconi) and rice (Jörg Feldmann). The metabolism of metal(loid)s by intestinal microorganisms was discussed by Roland Diaz-Bone. The intestinal absorption of the arsenic species with higher toxicity as studied by in vitro methods was also dealt with (Vicenta Devesa).
Finally, the assessment of risks and benefits of the organic forms of trace elements as feed additives (Alberto Mantovani) and the effect of in vitro lead administration on porcine ovarian granulosa (Adriana Kolesarova) were discussed.
Oral Session 4 - Trace elements in nutrition and human health
Marina Patriarca and Munehiro Yoshida chaired the fourth session. The invited lecture of Bo Lönnerdal addressed the alternative pathways for iron absorption from food, whereas Susan Fairweather-Tait reported on the results of a human intervention study designed to establish the effect of selenium supplementation on selenium biomarkers and immune function.
Ian J. Griffin reviewed the insights on trace mineral metabolism in children gained through stable isotopes studies. The current perspectives on sustainable solutions to zinc deficiency in infants and young children were discussed by Nancy F. Krebs. Zinc in relation to metallothioneins and longevity was also addressed (Francesco Piacenza).
The use of stable isotopes in in vivo studies by IPD-HPLC-ICP-MS (Maria Luisa Fernández-Sánchez), that of in vitro methods for assessing element bioaccessibility as influenced by breadmaking (Carmen Frontela) and the biomonitoring of iodine in the US population by CDC (Kathleen Caldwell) were other prominent topics of this session.