[Alimentary and oxygen deprivation as the modulator of the bone tissue physiological remodelling rate in young rats].
Influencing of 28-days alimentary deprivation and intermittent hypoxia to 3 months Wistar male rats (n = 30) bone tissue physiological remodelling is studied. We investigated 3 groups of animals, I group was control, II--food limitation mode (-40% in relation to the normal ration) and III--animals, which breathed hypoxic gas mixture with 13% O2 in nitrogen (HGM) during 4 hours in the intermittent mode (10 min of deoxygenation and 10 min of reoxygenation). It is showed significant increasing of melatonin and glicozaminoglikans levels in the rats II and III gr. serum. Activity of alkaline phosphatase in the bone tissue of III gr. rats increased and in the bone tissue and serum of II gr. rats for 1.2 and 1.4 time accordingly. We registered significant increasing of serum acid phosphatase activity in animals, which have breathed hypoxic gas mixture. The IGF-I gene expression level did not change practically in both experimental groups. We conclude, that alimentary deprivation and intermittent hypoxia have positive effects on the physiological remodelling of bone tissue.
Litovka
I H
IH
D000469:Alkaline Phosphatase / Q000097:blood / Q000378:metabolism; D000818:Animals; D001835:Body Weight / Q000502:physiology; D016723:Bone Remodeling / Q000502:physiology*; D001842:Bone and Bones / Q000378:metabolism; D031204:Caloric Restriction; D004587:Electrophoresis, Agar Gel; D015870:Gene Expression / Q000502:physiology; D006025:Glycosaminoglycans / Q000097:blood; D000860:Hypoxia / Q000378:metabolism* / Q000503:physiopathology; D007334:Insulin-Like Growth Factor I / Q000235:genetics; D008099:Liver / Q000378:metabolism; D008297:Male; D008550:Melatonin / Q000097:blood; D016133:Polymerase Chain Reaction; D051381:Rats; D017208:Rats, Wistar
D006025:Glycosaminoglycans; D007334:Insulin-Like Growth Factor I; D000469:Alkaline Phosphatase; D008550:Melatonin