Food restriction (9 days) promoted stereotyped behavior in drug-free mice of the DBA/2 (DBA), but not in those of the C57BL/6 (C57), inbred strain. Indeed, behavior presented by food-restricted mice of the DBA strain within the home cage was characterised by a very high response rate within a single response: cage cover climbing. Moreover, enhanced climbing in food-restricted mice of the DBA strain was also observed in a test designed to detect stereotypic effects of drugs in mice. Stereotypic behavior in DBA mice did not depend on nutritional status because: 1. No stereotypies were observed in DBA mice food-deprived for 15 h; 2. no strain-dependent differences in weight loss were observed; and 3. enhanced cage cover climbing was still evident in DBA mice following 24 h of free feeding. Finally, food-restricted DBA mice showed long-lasting sensitization to the locomotor effects of systemic amphetamine, indicating stress-induced behavioral sensitization in this strain of mice. By contrast, no sign of behavioral sensitization was observed in food-restricted mice of the C57 strain. These results indicate that restricted feeding promotes stereotyped behavior, as well as behavioral sensitization to amphetamine, in mice. Moreover, the observed parallelism between strain-dependent susceptibility to environmentally-induced stereotypies and behavioral sensitization supports the hypothesis that these phenomena share common neurobiological bases. (C) 1997 Elsevier Science Inc.

Parallel strain-dependent susceptibility to environmentally-induced stereotypies and stress-induced behavioral sensitization in mice / Cabib, Simona; Nunzio, Bonaventura. - In: PHYSIOLOGY & BEHAVIOR. - ISSN 0031-9384. - 61:4(1997), pp. 499-506. [10.1016/s0031-9384(96)00463-5]

Parallel strain-dependent susceptibility to environmentally-induced stereotypies and stress-induced behavioral sensitization in mice

CABIB, Simona;
1997

Abstract

Food restriction (9 days) promoted stereotyped behavior in drug-free mice of the DBA/2 (DBA), but not in those of the C57BL/6 (C57), inbred strain. Indeed, behavior presented by food-restricted mice of the DBA strain within the home cage was characterised by a very high response rate within a single response: cage cover climbing. Moreover, enhanced climbing in food-restricted mice of the DBA strain was also observed in a test designed to detect stereotypic effects of drugs in mice. Stereotypic behavior in DBA mice did not depend on nutritional status because: 1. No stereotypies were observed in DBA mice food-deprived for 15 h; 2. no strain-dependent differences in weight loss were observed; and 3. enhanced cage cover climbing was still evident in DBA mice following 24 h of free feeding. Finally, food-restricted DBA mice showed long-lasting sensitization to the locomotor effects of systemic amphetamine, indicating stress-induced behavioral sensitization in this strain of mice. By contrast, no sign of behavioral sensitization was observed in food-restricted mice of the C57 strain. These results indicate that restricted feeding promotes stereotyped behavior, as well as behavioral sensitization to amphetamine, in mice. Moreover, the observed parallelism between strain-dependent susceptibility to environmentally-induced stereotypies and behavioral sensitization supports the hypothesis that these phenomena share common neurobiological bases. (C) 1997 Elsevier Science Inc.
1997
amphetamine; animal; animals; behavior; c57bl/6; climbing; dba/2; dopamine; eating; food restriction; inbred c57bl; inbred dba; inbred strains; locomotion; male; mice; physiological; physiology; physiopathology; stereotypies; stress
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Parallel strain-dependent susceptibility to environmentally-induced stereotypies and stress-induced behavioral sensitization in mice / Cabib, Simona; Nunzio, Bonaventura. - In: PHYSIOLOGY & BEHAVIOR. - ISSN 0031-9384. - 61:4(1997), pp. 499-506. [10.1016/s0031-9384(96)00463-5]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/452265
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