Effects of early life permethrin exposure on spatial working memory and on monoamine levels in different brain areas of pre-senescent rats
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作者:
Nasuti, Cinzia
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Univ Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, ItalyUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Nasuti, Cinzia
[1
]
Carloni, Manuel
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Univ Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, ItalyUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Carloni, Manuel
[1
]
Fedeli, Donatella
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Univ Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, ItalyUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Fedeli, Donatella
[1
]
Gabbianelli, Rosita
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Univ Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, ItalyUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Gabbianelli, Rosita
[1
]
Di Stefano, Antonio
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Univ G DAnnunzio, Dipartimento Sci Farmaco, I-66100 Chieti, ItalyUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Di Stefano, Antonio
[2
]
Serafina, Cerasa Laura
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Univ G DAnnunzio, Dipartimento Sci Farmaco, I-66100 Chieti, ItalyUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Serafina, Cerasa Laura
[2
]
Silva, Isabel
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Inst Politecn Porto, Inst Super Engn, REQUIMTE, P-4200072 Oporto, PortugalUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Silva, Isabel
[3
]
Domingues, Valentina
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Inst Politecn Porto, Inst Super Engn, REQUIMTE, P-4200072 Oporto, PortugalUniv Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
Domingues, Valentina
[3
]
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Ciccocioppo, Roberto
[1
]
机构:
[1] Univ Camerino, Sch Pharm, Pharmacol Unit, Via Madonna Carceri, I-62032 Camerino, MC, Italy
[2] Univ G DAnnunzio, Dipartimento Sci Farmaco, I-66100 Chieti, Italy
[3] Inst Politecn Porto, Inst Super Engn, REQUIMTE, P-4200072 Oporto, Portugal
Rat;
Permethrin;
Early life exposure;
3-Phenoxybenzoic acid;
Spatial working memory;
T-maze;
Monoamines;
PYRETHROID INSECTICIDES;
PREFRONTAL CORTEX;
WATER MAZE;
HIPPOCAMPAL;
METABOLITES;
STRIATUM;
LACTATE;
DELTAMETHRIN;
POPULATION;
NEURONS;
D O I:
10.1016/j.tox.2012.09.016
中图分类号:
R9 [药学];
学科分类号:
1007 ;
摘要:
Pesticide exposure during brain development could represent an important risk factor for the onset of neurodegenerative diseases. Previous studies investigated the effect of permethrin (PERM) administered at 34 mg/kg, a dose close to the no observable adverse effect level (NOAEL) from post natal day (PND) 6 to PND 21 in rats. Despite the PERM dose did not elicited overt signs of toxicity (i.e. normal body weight gain curve), it was able to induce striatal neurodegeneration (dopamine and Nurr1 reduction, and lipid peroxidation increase). The present study was designed to characterize the cognitive deficits in the current animal model. When during late adulthood PERM treated rats were tested for spatial working memory performances in a T-maze-rewarded alternation task they took longer to choose for the correct arm in comparison to age matched controls. No differences between groups were found in anxiety-like state, locomotor activity, feeding behavior and spatial orientation task. Our findings showing a selective effect of PERM treatment on the T-maze task point to an involvement of frontal cortico-striatal circuitry rather than to a role for the hippocampus. The predominant disturbances concern the dopamine (DA) depletion in the striatum and, the serotonin (5-HT) and noradrenaline (NE) unbalance together with a hypometabolic state in the medial prefrontal cortex area. In the hippocampus, an increase of NE and a decrease of DA were observed in PERM treated rats as compared to controls. The concentration of the most representative marker for pyrethroid exposure (3-phenoxybenzoic acid) measured in the urine of rodents 12 h after the last treatment was 41.50 mu g/L and it was completely eliminated after 96 h. (C) 2012 Elsevier Ireland Ltd. All rights reserved.
机构:
Manipal Univ, Melaka Manipal Med Coll, Dept Biochem, Manipal 576104, Karnataka, IndiaManipal Univ, Melaka Manipal Med Coll, Dept Biochem, Manipal 576104, Karnataka, India
Barkur, Rajashekar Rao
Bairy, Laxminarayana K.
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Manipal Univ, Kasturba Med Coll, Dept Pharmacol, Manipal 576104, Karnataka, IndiaManipal Univ, Melaka Manipal Med Coll, Dept Biochem, Manipal 576104, Karnataka, India