Endocrine Disruptor
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. REMOVAL OF BPA FROM LANDFILL LEACHATES USING FENTON-ADSORPTION PROCESS
The objective of this investigation was to identify and quantify the presence of Bisphenol-A (BPA) in raw and treated leachates with the Fenton-adsorption process. BPA is used as a monomer to produce epoxy resins and it is a compound classified as endocrine disruptor. For this reason, it is important to quantify its presence in effluents that will be dispose
Quím. Nova. Publicado em: 27/05/2019
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2. Evidências de desregulação endócrina causada pela exposição aquática ao alumínio e ao manganês em Astyanax bimaculatus (Linnaeus, 1758) / Evidences of endocrine disruption caused by aquatic exposure to aluminum and manganese in Astyanax bimaculatus (Linnaeus, 1758)
Metals such as Aluminum (Al) and Manganese (Mn) are found in nature as well as in industrial effluents, and can be toxic to aquatic biota, with endocrine disrupting effects, e.g. for fish, which can affect the reproductive performance of a species. Rivers and tributaries of São Paulo State, even in theoretically preserved areas, have shown an increase in th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2012
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3. Post-partum testosterone administration partially reverses the effects of perinatal cadmium exposure on sexual behavior in rats
This study investigated the effects of perinatal cadmium exposure on sexual behavior, organ weight, and testosterone levels in adult rats. We examined whether immediate postpartum testosterone administration is able to reverse the toxic effects of the metal. Forty pregnant Wistar rats were divided into three groups: 1) control, 2) 10 mg kg-1 cadmium chloride
Psychol. Neurosci.. Publicado em: 2012-12
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4. Direct electrochemical analysis of dexamethasone endocrine disruptor in raw natural waters
Este trabalho descreve uma metodologia eletroanalítica, utilizando voltametria adsortiva de onda quadrada, que foi aplicada com êxito na determinação direta de resíduos de dexametasona em águas naturais brutas utilizadas no abastecimento público do Estado do Ceará, Brasil. Os limites de detecção obtidos variaram entre 7,47 × 10-9 e 1,80 × 10-8 mo
Journal of the Brazilian Chemical Society. Publicado em: 2012-01
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5. Fotodegradación heterogénea de bisfenol A en agua con dióxido de titanio
Bisphenol A (BPA) is a monomer used in epoxy resin and polycarbonate manufacture. This molecule is considered as an endocrine disruptor that causes different diseases. The human exposition to this non biodegrable substance is increasing in the time; in particular, water is contaminated by industrial remainder flow. In this article heterogeneous photo degrada
Química Nova. Publicado em: 2009
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6. CEFALOSPORINAS E SURFACTANTE NÃO-IÔNICO EM EFLUENTE HOSPITALAR: DETERMINAÇÃO, DEGRADAÇÃO POR MEIO DE FOTÓLISE E ELETROCOAGULAÇÃO E IDENTIFICAÇÃO DE SUBPRODUTOS E METABÓLITOS / CEFALOSPORINS AND NON IONIC SURFACTANTS IN HOSPITAL WASTEWATER: DETERMINATION, DEGRADATION BY MEANS OF PHOTOLYSIS AND ELECTROCOAGULATION AND IDENTIFICATION OF BYPRODUCTS AND METABOLITES
The currently incorrect and excessive consumption of pharmaceuticals and surfactants, mainly domestic usage, has become a concern to the scientific community around the world, due to the environmental consequences with regard to the bacterial resistance (characteristic of antibiotics), and alteration of hormonal systems (provoked by the degradation products
Publicado em: 2009
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7. Evaluation of acute exposure to aluminum and pH variations in the expression of gonadotropins in Oreochromis niloticus (Teleostei: Cichlidae) / Avaliação da exposição aguda ao alumínio e variações do pH na expressão de gonadotropinas em Oreochromis niloticus (Teleostei: Cichlidae)
Aluminum and acidic pH are known to be toxic to the ichthyofauna. The main goal of the present study was to evaluate the effects of aluminum and acidic pH in the reproductive physiology of Oreochromis niloticus. To conduct this experiment, females were exposed to aluminum at 0.5 mg of Al L-1 in neutral pH (Al N), 0.5 mg of Al L-1 in acidic pH (Al - Ac), a co
Publicado em: 2009
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8. Occurrence and removal of endocrine disruptor compounds in drinking water at Campinas and Sumare, Sao Paulo State, Brazil / Ocorrencia e remoção de disruptores endocrinos em aguas utilizadas para abastecimento publico de Campinas e Sumare - SP
The occurrence of potential endocrine disruptor compounds (EDC) in wastewater treatment plant (WWTP) effluent and surface waters at high concentrations harmful for aquatic life has been an interesting research field due to the probability of these micro pollutants to break through water treatment plant (WTP). The present paper evaluated the occurrence of nat
Publicado em: 2008
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9. Treatability of petrochemical industries wastewaters - case study. / Tratabilidade de águas residuárias de indústrias petroquímicas - estudo de caso.
O tratamento de águas residuárias industriais, submetido constantemente a cargas de choque, é pouco estudado no Brasil, sendo limitado o grau de conhecimento que se tem no mundo sobre os mecanismos de remoção de disruptores endócrinos nos sistemas de tratamento físico-químicos e biológicos. O presente trabalho traz um estudo de caso, envolvendo uma
Publicado em: 2008
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10. Efeitos da exposição pré-púbere ao herbicida glifosato no desenvolvimento reprodutivo de ratos Wistar machos / Effects of the prepubertal exposure to glyphosate herbicide on reproductive development of male Wistar rats
The glyphosate-Roundup is a widely pesticide used in several culturas agrícolas. Its reproductive toxicity is associated to inhibition of StAR protein and aromatase enzime that cause in vitro significantly reduction in testosterone and estradiol production. The objective of this study was to evaluate the in vivo effects of inhibition of StAR protein and aro
Publicado em: 2007
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11. Estudos de remoção de 17 alfa -etinilestradiol de aguas para abastecimento, utilizando dioxido de cloro, hipoclorito de sodio, carvão ativado em po (cap) e tratamento fisico-quimico / Studies of 17 alfa -etinilestradiol removal from supplying water, using chorine dioxide, sodium hipoclorite, powder activated carbon (cap) and physicist-chemistry treatment
The 17`alfa´-Etinilestradiol is a synthetic active pharmaceutical ingredient presents in the formulation of contraceptives used by a large amount of the female population. As a bioaccumulative molecule, the 17`alfa´-Etinilestradiol is not completely absorbed by woman organism; up to 80% can be eliminated by user, mainly by urine. Even after sewage treatmen
Publicado em: 2007
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12. Desenvolvimento reprodutivo de ratos machos expostos ao fenvalerato in utero e lactação / Reproductive development of male rats exposed to fenvalerate in utero and lactation
Fenvalerate is a synthetic pyrethroid insecticide used in agriculture, cattle raising and in the control of domestic insects, and its reproductive effects are little-known.Some studies already have proposed that fenvalerate is an endocrine disruptor, acting as an environmentalestrogen. Studies done with rats exposed to some pyrethroids showed reduction of sp
Publicado em: 2005