ANP	Atrial natriuretic peptide
AP	Arterial pressure
AS	Atherosclerosis
APC	Atrial premature contraction
CM	Conditioned media
CO	Cardiac output
CPC	Cardiovascular progenitor cell
CVD	Cardiovascular disease
CVP	Central venous pressure
DLR	Deutsches Zentrum für Luft- und Raumfahrt
DWI	Dry water immersion
EC	Endothelial cells
ECM	Extracellular matrix
EPC	Endothelial progenitor cell
EPO	Erythropoietin
ESA	European Space Agency
FN	Fibronectin
GCR	Galactic cosmic rays
Gy	Gray
HBR	Horizontal bedrest
HDBR	Head-down bed rest
HF	High frequency
HR	Heart rate
hPSC	Human pluripotent stem cells
HRV	Heart rate variability
HUVEC	Human umbilical vein endothelial cell
IF	Intermediate filament
IL	Interleukin
IMT	Intima media thickness
ISS	International Space Station
JAMIC	Japan Microgravity Center
JAXA	Japan Aerospace Exploration Agency
LDL	Low-density lipoprotein
LEO	Low Earth orbit
LF	Low frequency
LM	Laminin
MAP	Mean arterial pressure
MCS	Multicellular spheroids
ME	Microgravity followed by normal conditions
MeV	Megaelectronvolt
mSv	Millisieverts
MSC	Mesenchymal stem cell
MT	Microtubules
NASA	National Aeronautics and Space Administration
NEEMO	NASA’s Extreme Environment Mission Operation
NGAL	Neutrophil gelatinase associated lipocalin
Ni	Nickel
NO	Nitric oxide
OI	Orthostatic intolerance
QQc	Quality and quantity culture
RANTES	Regulated on activation normal T-cell expressed and secreted
RBC	Red blood cell
RE	Earth radius
RhoA	Ras homolog family member A
RICVD	Radiation induced cardiovascular disease
ROS	Reactive oxygen species
RPM	Random positioning machine
SAA	South Atlantic Anomaly
SV	Stroke volume
Sv	Sieverts
SVR	Systemic vascular resistance
TPR	Total peripheral resistance
VDCC	Voltage-dependent Ca2+ channels
VEGF	Vascular endothelial growth factor
VPC	Ventricular premature contraction
VSMC	Vascular smooth muscle cell
WI	Water immersion
ZARM	Center of Applied Science and Microgravity (Bremen, Germany)
µg	Microgravity
2D	Two-dimensional
3D	Three-dimensional