8-OHdG	8-Hydroxyguanosine
ACE-2	Angiotensin-converting enzyme-2
ALT	Alanine transaminase
AOA	Antioxidant activity
AR	Androgen receptor
ART	Assisted reproductive technology
BAX	Bcl-2-associated X protein
BCL-2	B-cell lymphoma 2
BTB	Blood–testis barrier
CAT	Catalase
cFT	Calculated free testosterone
CoQ10	Coenzyme Q10
COVID-19	Coronavirus disease 2019
COX	Cyclooxygenase
CRP	C-reactive protein
DFI	DNA fragmentation index
E2	Estradiol
EPS	Expressed prostatic secretion
FSH	Follicular stimulating hormone
GPx	Glutathione peroxidase
GSH	Glutathione
HPT	Hypothalamus–pituitary–testis
ICSI	Intracytoplasmic sperm injection
ICU	Intensive care unit
IFN	Interferon
IHC	Immunohistochemistry
IL	Interleukin
IVF	In vitro fertilization
LAC	L-Acetyl-carnitine
LC	L-Carnitine
LDH	Lactate dehydrogenase
LH	Luteinizing hormone
MCP-1	Monocyte chemoattractant protein-1
MDA	Malondialdehyde
NAC	Ν-Acetylcysteine
NADPH	Nicotinamide adenine dinucleotide phosphate
NF-Kb	Nuclear factor kappa light chain enhancer of activated B cells
NO	Nitric oxide
Nrf-2	Nuclear-factor-erythroid-2-related factor 2
NT	Nitrotyrosine
ORP	Oxidation-reduction potential
OS	Oxidative stress
PCT	Procalcitonin
PGE-2	Prostaglandin E2
RCT	Randomized control trial
ROS	Reactive oxygen species
RT-PCR	Reverse transcription polymerase chain reaction
S protein	Spike protein
SARS-CoV-2	Severe acute respiratory syndrome coronavirus-2
Se	Selenium
SOD	Superoxide dismutase
sORP	Static oxidation reduction potential
STAT1	Signal transducer and activator transcription 1
T	Testosterone
TAC	Total antioxidant capacity
TBARs	Thiobarbituric acid reactive substances
TEM	Transmission electron microscopy
TGF-β	Transforming growth factor-beta
TLR-4	Toll like receptor-4
TMPRSS-2	Transmembrane serine protease 2
TMC	Total motile count
TMSC	Total motile sperm count
TNF-α	Tumor necrosis factor-alpha
TOSC	Total oxyradical scavenging capacity
TPMC	Total progressive motile sperm count
TSC	Total sperm count
TSM	Total sperm motility
TT	Total testosterone
WBC	White blood cells
WHO	World health organisation
Zn	Zinc