Table 1. Function, symbol and name of selected reference genes.

Gene symbol	Gene description	Function
Gapdh	Glyceraldehyde 3-phosphate dehydrogenase	Catalyzes sixth step of glycolysis
Actb	Beta-actin	Formation of microfilaments in eukaryotic cells
Hprt1	Hypoxanthine guanine phosphoribosyl transferase	Transferase that plays a role in the generation of purine nucleotide through the purine salvage pathway
Pgk1	Phosphoglycerate kinase 1	Part of the glycolysis pathway which catalyses the conversion of 1,3-diphogycerate to 3-phosphoglycerate
Sdha	Succinate dehydrogenase complex, subunit A, flavoprotein (Fp)	Citric acid cycle and the respiratory chain
Ppia	Peptidylprolyl isomerase A	Catalyzes cis-trans isomerization of proline imidic peptide bonds. Role in protein folding
RpL38	Ribosomal protein L38	Protein synthesis
RpL37	Ribosomal protein L37	Protein synthesis
Eif3f	Eukaryotic translation initiation factor 3 subunit F	Translation elongation
Eef2	Eukaryotic translation elongation factor 2	Translation elongation