Table 2. Comparison of the RR-1 experiment with BION-M No.1 experiment (for cardiac tissue).

Parameter	RR-1	BION-M No.1
Duration of flight	37 days	30 days
Period of early readaptation	none	13 hours
ACTB relative content, MF/CF/mRNA	~/~/~	~/↓/↓
ACTG relative content, MF/CF/mRNA	~/~/~	~/~/~
ACTN1 relative content, MF/CF/mRNA	~/↓/~	~/~/↑
ACTN4 relative content, MF/CF/mRNA	~/↓/↓	↓/~/↓

ACTB–beta-actin, ACTG–gamma-actin, ACTN1 –alpha-actinin-1, ACTN4 –alpha-actinin-4, CF–cytoplasmic fraction, MF–membrane fraction.