ATP5A	a subunit of MC V (ATP synthase F1 subunit alpha)
CC	cerebral cortex
COX1	a subunit of MC IV (cytochrome c oxidase subunit 1)
Cyt b;	a subunit of MC-III (cytochrome b)
HBH	hypobaric hypoxia
HR	high-resistance rats
LR	low-resistance rats
MC	mitochondrial complex
NDUFV2	a subunit of complex I (MC I, NADH dehydrogenase [ubiquinone] flavoprotein)
OXPHOS	oxidative phosphorylation
RC	respiratory chain
ROS	reactive oxygen species
SDH	succinate dehydrogenase (MC II)
SDHA	a subunit of succinate dehydrogenase complex (MC II)
Tr	resistance index