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  • Title: Intracerebroventricular administration of betacytotoxics alters expression of brain monoamine transporter genes.
    Author: Salković-Petrisić M, Lacković Z.
    Journal: J Neural Transm (Vienna); 2003 Jan; 110(1):15-29. PubMed ID: 12541010.
    Abstract:
    Intracerebroventricular (icv) administration of betacytotoxics alters brain monoamine neurotransmission, without producing hyperglycemia. By means of in situ hybridization, we have investigated the expression of dopamine, noradrenaline and serotonin transporter (DAT, NAT, 5-HTT, respectively) mRNAs, in the brain of alloxan- and streptozotcin-icv treated rats. DAT1 mRNA expression is increased in 1-week alloxan-icv treated rats in arcuate nucleus (+51%) and ventral medial bundle /VMB/ (+32%), and decrease in VMB of 4-week alloxan- (-53%) and streptozotocin- (-9%) icv treated rats, respectively. NAT1 mRNA expression in locus coeruleus is decreased in 4-week alloxan-icv treated rats (-35%) and increased in A1 cell group of 1- (+19%) and 4- (+14%) week streptozotocin-icv treated rats. 5-HTT mRNA expression in dorsal raphe nucleus is increased in 1- (+13%) and 4- (+21%) week alloxan-icv treated rats. Observed changes may suggest altered response to antidepressants in streptozotocin-icv treated rats, used as an animal model of sporadic Alzheimer's disease.
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