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European Journal of Nutrition

, Volume 53, Issue 3, pp 897–906 | Cite as

Molecular pathology of acute kidney injury in a choline-deficient model and fish oil protective effect

  • Valeria Denninghoff
  • Georgina Ossani
  • Ana Uceda
  • Matias Rugnone
  • Elmer Fernández
  • Cristóbal Fresno
  • German González
  • Maria Luisa Díaz
  • Alejandra Avagnina
  • Boris Elsner
  • Alberto Monserrat
Original Contribution

Abstract

Purpose

The aim of this work was to investigate the potential protective effects of fish oil on the basis of kidney transcriptomic data on a nutritional experimental model.

Methods

Male weanling Wistar rats were divided into four groups and fed choline-deficient (CD) and choline-supplemented (CS) diets with vegetable oil (VO) and menhaden oil (MO): CSVO, CDVO, CSMO and CDMO. Animals were killed after receiving the diets for 6 days. Total RNA was purified from the right kidney and hybridized to Affymetrix GeneChip Rat Gene 1.0 ST Array. Differentially expressed genes were analyzed.

Results

All CSVO, CSMO and CDMO rats showed no renal alterations, while all CDVO rats showed renal cortical necrosis. A thorough analysis of the differential expression between groups CSMO and CDMO was carried out. There were no differential genes for p < 0.01. The analysis of the differential expression between groups CSVO and CSMO revealed 32 genes, 11 were over-expressed and 21 were under-expressed in CSMO rats.

Conclusions

This work was part of a large set of experiments and was used in a hypothesis-generating manner. The comprehensive analysis of genetic expression allowed confirming that menhaden oil has a protective effect on this nutritional experimental model and identifying 32 genes that could be responsible for that protection, including Gstp1. These results reveal that gene changes could play a role in renal injury.

Keywords

Acute kidney injury Choline-deficient Gene expression Menhaden oil Protective effect 

Notes

Acknowledgments

We thank Mariana dos Santos and Silvia Caram for technical assistance, Myrthala Duguid (Head of the Library at CEMIC University Institute), and Valeria Melia for English editing of the manuscript. This paper was partially supported by a grant from CONICET and University of Buenos Aires, Argentina.

Conflict of interest

All the authors declare no conflicts of interest in this protocol.

Supplementary material

394_2013_593_MOESM1_ESM.tif (75 kb)
Supplementary material 1 (TIFF 76 kb)
394_2013_593_MOESM2_ESM.xls (6.2 mb)
Supplementary material 2 (XLS 6398 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Valeria Denninghoff
    • 1
    • 2
  • Georgina Ossani
    • 1
  • Ana Uceda
    • 1
  • Matias Rugnone
    • 3
  • Elmer Fernández
    • 4
  • Cristóbal Fresno
    • 4
  • German González
    • 4
  • Maria Luisa Díaz
    • 5
  • Alejandra Avagnina
    • 2
  • Boris Elsner
    • 2
  • Alberto Monserrat
    • 1
  1. 1.Departamento de Patología, Facultad de Medicina, Centro de Patología Experimental y Aplicada (CPEA)Universidad de Buenos AiresCiudad Autónoma de Buenos AiresArgentina
  2. 2.Centro de Educación Médica e Investigaciones Clínicas “Norberto Quirno” (CEMIC)Ciudad Autónoma de Buenos AiresArgentina
  3. 3.Laboratorio de Genómica Comparativa del Desarrollo Vegetal, Fundación Instituto LeloirInstituto de Investigaciones Bioquímicas (IIB-BA, CONICET)Buenos AiresArgentina
  4. 4.Facultad de IngenieríaUniversidad Católica de CórdobaCórdobaArgentina
  5. 5.Medicina Nuclear, Laboratorio de VitaminasHospital BritánicoCiudad Autónoma de Buenos AiresArgentina

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