XDH and hyperuricemia: Known microRNAs of the pairwise comparisons among the four groups of mice, i.e., the normal control, the model, the allopurinol, and the noni fruit juice groups, with the target genes related to xanthine dehydrogenase/oxygenase involved in the metabolic pathways of hyperuricemia based on the Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis.