After @ months ' treatment , although hemoglobin A@c and @,@-anhydroglucitol were significantly improved in both groups , only the M-group had significant reductions in insulin resistance index and triglyceride/high-density lipoprotein cholesterol ( TG/HDL-C ; a beneficial index for assessing the presence of small dense low-density lipoprotein , and a marker of atherogenic dyslipidemia ) .