Diphenyl Ditelluride Induces Neurotoxicity and Impairment of Developmental Behavioral in Rat Pups

نویسندگان

  • Simone Pinton
  • Cristiane Luchese
  • Eluza C. Stangherlin
  • Silvane S. Roman
  • Cristina W. Nogueira
چکیده

O objetivo deste estudo foi investigar se a exposição aguda ao ditelureto de difenila [(PhTe) 2 ] causaria prejuízo no desenvolvimento comportamental de filhotes de ratos. Os filhotes receberam uma injeção subcutânea de (PhTe) 2 (0,1 mg kg, 3 mL kg) ou veículo (3 mL kg) no 14o dia após o nascimento (DPN). Do 15o ao 21o DPN, foram realizados testes comportamentais nos filhotes e, imediatamente após estes testes, os filhotes foram submetidos à eutanásia. As análises histológicas, a determinação do conteúdo de mielina e a atividade da acetilcolinesterase (AChE) foram realizadas. O período crítico de intoxicação ocorreu no 4o e 5o dias após a injeção de (PhTe) 2 , quando os sinais de toxicidade foram mais evidentes, caracterizados pelo aparecimento de sinais sistêmicos de toxicidade, disfunções comportamentais, neurotoxicidade e uma alteração no sistema colinérgico. Desta forma, conclui-se que o (PhTe) 2 induziu neurotoxicidade e prejuízos no desenvolvimento comportamental de filhotes de ratos.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Signaling Mechanisms and Disrupted Cytoskeleton in the Diphenyl Ditelluride Neurotoxicity

Evidence from our group supports that diphenyl ditelluride (PhTe)2 neurotoxicity depends on modulation of signaling pathways initiated at the plasma membrane. The (PhTe)2-evoked signal is transduced downstream of voltage-dependent Ca(2+) channels (VDCC), N-methyl-D-aspartate receptors (NMDA), or metabotropic glutamate receptors activation via different kinase pathways (protein kinase A, phospho...

متن کامل

Role of Oxidative Stress in Ethanol-induced Neurotoxicity in the Developing Cerebellum

Objective(s) The purpose of this study was to investigate the role of oxidative stress in Purkinje cell neurotoxicity ofethanol-treated rat. Materials and Methods Male rat pups 4-day-old was used in this study. Ethanol was administered to rat pups at a dose of 6 g/kg from postnatal days (PDs) 4 to 5.  Pups were killed 90 min after the second alcohol treatment on PD 5 by decapitation and the ...

متن کامل

A comparison of developmental and maternal toxicity of Perfluoro octane sulfonate (PFOS) in Mouse: Evaluation of histopathological and behavioral changes

Perfluorooctanesulfonate (PFOS) is a widely spread environmental contaminant. It accumulates in the brain and has potential neurotoxin effects. Due to chemical properties, PFOS shows persistency in the environment and therefore has potential hazardous effect. The risk of possible intra uterine exposure to PFOS poses a health concern for developmental effects. The goal of this study was survey o...

متن کامل

Effects of silver nanoparticle on the developing liver of rat pups after maternal exposure

Abstract The extensive application of silver nanoparticles (AgNPs) has been increased due to their antimicrobial properties, however numerous concerns has been arisen about their toxicity potential. Since nanoparticles can cross through the placenta and accumulate in the embryonic organs especially liver, in this study, developmental hepatotoxicity of AgNPs was investigated. Pregnant rats were...

متن کامل

Effects of silver nanoparticle on the developing liver of rat pups after maternal exposure

Abstract The extensive application of silver nanoparticles (AgNPs) has been increased due to their antimicrobial properties, however numerous concerns has been arisen about their toxicity potential. Since nanoparticles can cross through the placenta and accumulate in the embryonic organs especially liver, in this study, developmental hepatotoxicity of AgNPs was investigated. Pregnant rats were...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010