SLC12A5 and Tinnitus: The tinnitus group had significantly higher mRNA expression of KCC2 gene than the control group in the temporal lobes (0.82 ± 0.24 versus 0.42 ± 0.19, p = 0.025), and the spirulina group had significantly lower mRNA expression of KCC2 gene than the tinnitus group in the temporal lobes (0.37 ± 0.25 versus 0.82 ± 0.24, p = 0.010).