In the diabetic testes, gene expression and LH/hCG-R content were reduced (Figure 3, Figure 4, Figure 7 and Figure 8), which is consistent with previously obtained data on a decrease in the expression of LH/hCG-R in the testicular cells of diabetic animals with T2DM and T1DM [38,43,64,70]. This evidence concerns the gene PLOD1 and type 2 diabetes mellitus.