Are there age-, strain-, and sex-differences in the prolonged exposure to methylphenidate?
Pertenece a: DigitalCommons@The Texas Medical Center Descripción: Repeated treatment with psychostimulants produces behavioral sensitization that results in increased locomotor responses so that lower drug doses are required to obtain the same effect and cross-sensitization with other stimulants. Methylphenidate (MPD; Ritalin) is most frequently prescribed to treat children having attention deficit hyperactivity disorder (ADHD), a syndrome with onset in childhood characterized by high levels of inattention, hyperactivity, and impulsivity. Little is known of the consequences involving the long-term use of MPD as treatment for ADHD. This study investigates if there are age, genetic/strain, and sex differences in the prolonged exposure to MPD and cross-sensitization with amphetamine. The objective is to determine whether (a) early exposure to MPD in adolescent rats increases their sensitivity to the drug when they are adult rats, (b) there are strain and sex differences in the response to
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