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Behavior Genetics

, Volume 48, Issue 6, pp 440–450 | Cite as

Effects of Repeated Treatment with Midazolam in SHR and SLA16 Rat Strains in the Triple Test

  • Lucía Raily Acuña
  • Renata Cristina Nunes Marchette
  • Natalli Granzotto
  • Paula Gomes Dias
  • Maria Elisa Corvino
  • Fernando Gabriel Mazur
  • Fernanda Junques Corrêa
  • Geison Souza Izídio
Original Research

Abstract

We exposed male and female rats of SHR (Spontaneously Hypertensive Rats) and SLA16 (SHR.LEW-Anxrr16) strains, in a non-drugged state, for five consecutive days to the Triple Test (experiment 1); or after repeated treatment with midazolam (MDZ), for four consecutive days. The fifth day was performed without treatment (experiment 2). The first experiment showed that males did not avoid and females increased the exploration of the open arms over the days. In experiment 2, SLA16 from both sexes approached more the open arms than SHR rats. The MDZ anxiolytic-like effect was sustained in both strains and sexes over the days. On the fifth day, SLA16 still approached more the open arms than SHR rats. Data suggest an absence of repeated-trial tolerance to MDZ anxiolytic-like effects. Testing the SHR and SLA16 strains, especially females, could be necessary for the future search for the genes and molecular pathways underlying anxiety/emotionality.

Keywords

Midazolam Anxiety Emotionality Anxiolytic drugs Rats 

Notes

Acknowledgements

F. J. Correa and R. C. N. Marchette were recipients of fellowships from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). L. R. Acuña; N. GranzottoF. G. Mazur and E. Corvino were recipients of fellowships from Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). The authors also thank R. A. N. Pértile and T. M. Alves for their technical assistance.

Funding

This work was supported by Edital MCTI/CNPq 14/2013.

Compliance with ethical standards

Conflict of interest

Lucía Raily Acuña, Renata Cristina Nunes Marchette, Natalli Granzotto, Paula Gomes Dias, Maria Elisa Corvino, Fernando Gabriel Mazur, Fernanda Junques Corrêa and Geison Souza Izídio declare that they have no conflict of interest.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were by following the ethical standards of the institution or practice at which the studies were conducted and respected the guidelines of the local committee for Animal Care in Research (CEUA/UFSC) with the valid permission PP00903.

Supplementary material

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Supplementary material 1 (DOCX 15 KB)
10519_2018_9922_MOESM2_ESM.docx (20 kb)
Supplementary material 2 (DOCX 20 KB)
10519_2018_9922_MOESM3_ESM.docx (21 kb)
Supplementary material 3 (DOCX 20 KB)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Lucía Raily Acuña
    • 1
  • Renata Cristina Nunes Marchette
    • 1
    • 2
  • Natalli Granzotto
    • 1
    • 2
  • Paula Gomes Dias
    • 1
  • Maria Elisa Corvino
    • 1
  • Fernando Gabriel Mazur
    • 1
  • Fernanda Junques Corrêa
    • 1
    • 2
  • Geison Souza Izídio
    • 1
  1. 1.Laboratório de Genética do Comportamento, Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências BiológicasUniversidade Federal de Santa CatarinaFlorianópolisBrazil
  2. 2.Department of PharmacologyFederal University of Santa CatarinaFlorianópolisBrazil

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