A. a.	Aggregatibacter actinomycetemcomitans
AL	Attachment loss
ANOVA	One-way analysis of variance
BMI	Body mass index
CXCR2	C-X-C motif chemokine receptor 2 (receptor for IL-8)
CP	Chronic periodontitis
DM	Diabetes mellitus
DN	Diabetic nephropathy
DPN	Diabetic neuropathy
DR	Diabetic retinopathy
ELISA	Enzyme-linked immunosorbent assay
F. n.	Fusobacterium nucleatum
GCF	Gingival crevicular fluid
GI	Gingival index
HbA1c	Glycated hemoglobin
HC	Systemically healthy controls without periodontitis
HC+CP	Systemically healthy individuals with chronic periodontitis
HDL	High density lipoprotein
HWE	Hardy-Weinberg equilibrium
IL-8	Interleukin-8
IQR	Interquartile range
LDL	Low density lipoprotein
LPS	lipopolysaccharide
N	Number
Neg	Negative
PD	Pocket depth
P. g.	Porphyromonas gingivalis
P. i.	Prevotella intermedia
P. m.	Parvimonas micra
Pos	Positive
qPCR	Quantitative polymerase chain reaction
SD	Standard deviation
T1DM	Type 1 diabetes mellitus
T2DM	Type 2 diabetes mellitus
T. d.	Treponema denticola
T. f.	Tanarella forsythia
P. i.	Prevotella intermedia