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Reduced wheel running and blunted effects of voluntary exercise in LPA1-null mice: the importance of assessing the amount of running in transgenic mice studies

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Issue date
2013-09-19
Author
Castilla Ortega, Estela
Rosell del Valle, Cristina
Blanco Calvo, Eduardo
Pedraza Benitez, Carmen
Chun, Jerold
Rodríguez de Fonseca, Fernando
Estivill Torrús, Guillermo
Santín Núñez, Luis Javier
Suggested citation
Castilla Ortega, Estela; Rosell del Valle, Cristina; Blanco Calvo, Eduardo; Pedraza Benitez, Carmen; Chun, Jerold; Rodríguez de Fonseca, Fernando; ... Santín Núñez, Luis Javier. (2013) . Reduced wheel running and blunted effects of voluntary exercise in LPA1-null mice: the importance of assessing the amount of running in transgenic mice studies. Neuroscience Research, 2013, vol. 77, núm. 3, p. 170-179. https://doi.org/10.1016/j.neures.2013.09.004.
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Abstract
This work was aimed to assess whether voluntary exercise rescued behavioral and hippocampal alterations in mice lacking the lysophosphatidic acid LPA1 receptor (LPA1-null mice), studying the potential relationship between the amount of exercise performed and its effects. Normal and LPA1-null mice underwent 23 days of free wheel running and were tested for open-field behavior and adult hippocampal neurogenesis (cell proliferation, immature neurons, cell survival). Running decreased anxiety-like behavior in both genotypes but increased exploration only in the normal mice. While running affected all neurogenesis-related measures in normal mice (especially in the suprapyramidal blade of the dentate gyrus), only a moderate increase in cell survival was found in the mutants. Importantly, the LPA1-nulls showed notably reduced running. Analysis suggested that defective running in the LPA1-null mice could contribute to explain the scarce benefit of the voluntary exercise treatment. On the other hand, a literature review revealed that voluntary exercise is frequently used to modulate behavior and the hippocampus in transgenic mice, but half of the studies did not assess the quantity of running, overlooking any potential running impairments. This study adds evidence to the relevance of the quantity of exercise performed, emphasizing the importance of its assessment in transgenic mice research.
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http://hdl.handle.net/10459.1/47963
DOI
https://doi.org/10.1016/j.neures.2013.09.004
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Neuroscience Research, 2013, vol. 77, núm. 3, p. 170-179
European research projects
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