Mercury and DDT exposure risk to fish-eating human populations in Amazon.

In order to investigate the potential risk of mercury and DDTs exposure to fish-eating human populations in Samuel Reservoir, not affected directly by gold-mining activities, the axial muscle of Cichla monoculus was analyzed. Twenty-nine and thirty adults individuals were collected respectively on February (rainy season) and August (dry season) 2007. The specimens were sacrificed by spinal section before sex identification, body weight and total length determination.

Involvement of glutamate and cytokine pathways on antinociceptive effect of Pfaffia glomerata in mice.

Ethnopharmacological Relevance: Pfaffia glomerata (Spreng) Pedersen (Amaranthaceae) is a medicinal plant known in Brazil as "Paratudo" and "Brazilian ginseng" and is commonly used as tonic, antidiabetic and to treat gastric disorders.

Aim Of The Study: This study evaluates the possible mechanism by which hydroalcoholic extract (HE) of Pfaffia glomerata exerts its antinociceptive effect.

Materials And Methods: The HE was evaluated in acetic acid and glutamate models of pain or by biting behavior following intrathecal (i.