AgP	Aggressive periodontitis
AS-PCR	Allele-specific polymerase chain reaction
cAMP	Cyclic adenosine monophosphate
CFU	Colony-forming units
CI	Confidence interval
CP	Chronic periodontitis
CPITN	Community Periodontal Index of Treatment Needs
dNTPs	Deoxyribonucleoside triphosphate mix
EDTA	Ethylenediaminetetraacetic acid
HWE	Hardy–Weinberg equilibrium
IL	Interleukin
IQR	Interquartile range
LD	Linkage disequilibrium
LPS	Lipopolysaccharides
MAF	Minor allele frequencies
MHC	Histocompatibility complex
N	Number of individuals
NF-1	Nuclear factor 1
NFAT	Nuclear factor activated T cells
NFκB	Nuclear factor kappa B
OR	Odds ratio
PAMP	Pathogen-associated molecular patterns
PARP-1	Poly (ADP-ribose) polymerase-1
PBMCs	Peripheral blood monocytes
PCR	Polymerase chain reaction
PWM	Pokeweed mitogen
RFLP-PCR	Restriction fragment length polymorphism PCR
SD	Standard deviation
SNP	Single-nucleotide polymorphism
Th1/2	T helper 1/2
TLR4	Toll-like receptor 4
TNF-α	Tumor necrosis factor-alpha
VNTR	Variable tandem repeats