NSPT	Non-surgical periodontal therapy
SOD	Superoxide Dismutase
SOD1	Superoxide Dismutase 1
IRS2	Insulin Receptor Substrate type 2
IRS1	Insulin Receptor Substrate type 1
T2DM	Type 2 Diabetes Mellitus
mRNA	Messenger RNA
HbA1c	Glycated hemoglobin
PI3K-PKB	Phosphatidylinositol 3-kinase and protein kinase B
JNK-AP-1	c-Jun N-terminal kinase-Activator Protein-1
IKK-NF-kB	I kappa B kinase- Nuclear factor kappa-B
GLUT4	Glucose transporter type 4
Nrf2	NF-E2-related factor 2
Keap1	Kelch-like ECH-associated protein
TC	Total Cholesterol
O2•−	Superoxide radical anion
H2O2	Hydrogen peroxide
GPx	Glutathione peroxidase
ROS	Reactive oxygen species
TNF-α	Tumor necrosis factor-alpha
PBMCs	Peripheral blood mononuclear cells
TREND	Transparent Reporting of Evaluations with Nonrandomized Designs
ReBEC	Brazilian Clinical Trials Registry
HOMA	Homeostasis model assessment
IR	Insulin resistance
HDL-Cholesterol	High-density lipoprotein Cholesterol
LDL-Cholesterol	low-density lipoprotein cholesterol
vLDL	very-low-density lipoprotein
CVD	cardiovascular disease
VPI	Visible Plaque Index
MBI	Marginal Bleeding Index
BoP	Bleeding on Probing
PD	Probing Depth
CAL	Clinical Attachment Loss
XOD	Xanthine-xanthine oxidase
BSA	Bovine serum albumin
I.N.T.	2-(4-iodophenyl)-3-(4-nitrophenol)-5-phenyltetrazolium chloride