Pereskia aculeata Miller Flour: Metabolic Effects and Composition.

Pereskia aculeata Miller is known in Brazil as ora-pro-nobis (OPN) and has been used commonly in the folklore medicine. The purpose of our study was to evaluate the composition and the effects of OPN flour on the metabolic profile and intestinal motility of Wistar rats. Animals were divided randomly into five groups (n = 10): G1 (control group) and G2 (treated with OPN flour).

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.

Recovery of silver residues from dental amalgam.

Unlabelled: Dental amalgam residues are probably the most important chemical residues generated from clinical dental practice because of the presence of heavy metals among its constituents, mainly mercury and silver.

Objective: The purpose of this study was to develop an alternative method for the recovery of silver residues from dental amalgam.

Material And Methods: The residue generated after vacuum distillation of dental amalgam for the separation of mercury was initially diluted with 32.