The danio rerio model to understand the linking between developmental neurotoxicity of metal species and some neurodegenerative disease
Principal Investigator: Prof. Dr. Raúl Bonne Hernández
Institution: Departamento de Ciências Exatas e da Terra. Instituto de Ciências Ambientais, Químicas e Farmacêuticas/ICAQF/UNIFESP. Universidade Federal de São Paulo.
Brazil is one of the main producers of manganese and aluminum, which are neurotoxic during the development and associates with some illnesses of the aging (Parkinson, Alzheimer and Amyotrophic Lateral Sclerosis), with elevated costs for public health. In Brazil the national prevalence of Alzheimer can arrive until 63% of the total of cases of dementia and 4% of the population with age above of 50 years must suffer of Parkinson in year 2030. At today, the explanations to the development of the above-mentioned illnesses and the neurotoxicity of these metals are unclear, where the chemical speciation and the potential interaction among metal species have been neglected reiteratively. Thus, this project intends to study the importance of aluminum and manganese speciation and its associations for its neurotoxicological mechanisms and its implication on some neurodegenerative diseases. This project will contribute for the clarification of the respective studies of environmental and neurotoxicological risk assessment of metals. This is will be a basic, applied and explicative research.
FAPESP Financing: 11/2011-4
Development of Filtering Devices for purifying of water projected for human consumption
Principal Investigator: Prof. Dr. Raúl Bonne Hernández
Institution: Departamento de Ciências Exatas e da Terra. Instituto de Ciências Ambientais, Químicas e Farmacêuticas/ICAQF/UNIFESP. Universidade Federal de São Paulo.
The project aims to contribute to the basic sanitation actions of Brazil through the development of drinking water purifiers composed of several low-cost natural materials (coconut fibers, zeolites, chi-tosan and cyclodextrins). These materials exhibit simultaneous mechanisms of action in terms of ex-clusion by ion exchange, particle size, sorption processes, among others, that when applied in an inte-grated manner could generate synergistic and/or additive results of water purification. Preliminary studies of our group suggest that the chemical speciation and the nature of the filter medium seem to be determining factors in the promising results obtained on the removal of manganese and micro-cystins of water.