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Effect of pre-term birth on oxidative stress responses to normoxic and hypoxicexercise [Elektronski vir]Martin, Agnès ...Pre-term birth is a major health concern that occurs in approximately 10% of births worldwide. Despite high incidence rate, long-term consequences of pre-term birth remain unclear. Recent evidence ... suggests that elevated oxidative stress observed in pre-term born infants could persist into adulthood. Given that oxidative stress is known to play an important role in response to physical activity and hypoxia, we investigated whether oxidative stress responses to acute exercise in normoxia and hypoxia may be di!erently modulated in pre-term vs. fullterm born adults. Twenty-two pre-term born and "fteen age-matched full-term born controls performed maximal incremental cycling tests in both normoxia (FiO2: 0.21) and normobaric hypoxia (FiO2: 0.13; simulated altitude of 3800 m) in blinded and randomized manner. Plasma levels of oxidative stress (advanced oxidation protein products [AOPP] and malondialdehyde), antioxidant (ferric reducing antioxidant power, glutathione peroxidase, catalase [CAT] and superoxide dismutase [SOD]) and nitrosative stress markers (nitrotyrosine, nitrite and total nitrite and nitrate [NOx]) were measured before and immediately after each test. AOPP (+24%, P<0.001), CAT (+38%, P<0.001) and SOD (+12%, P=0.018) and NOx (+17%, P=0.024) signi"cantly increased in response to exercise independently of condition and birth status. No di!erence in response to acute exercise in normoxia was noted between pre-term and full-term born adults in any of measured markers. Hypoxic exposure during exercise resulted in signi"cant increase in AOPP (+45%, P=0.008), CAT (+55%, P=0.019) and a trend for an increase in nitrite/nitrate content (+35%, P=0.107) only in full-term and not pre-term born individuals. These results suggest that prematurely born adult individuals exhibit higher resistance to oxidative stress response to exercise in hypoxia.Vir: Redox biology [Elektronski vir]. - ISSN 2213-2317 (Vol. 32, May 2020, str. 1-7)Vrsta gradiva - e-članekLeto - 2020Jezik - angleškiCOBISS.SI-ID - 33259303
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Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Martin, Agnès | |
Millett, Gregorio A. | |
Osredkar, Damjan | 21413 |
Mramor, Minca | 25792 |
Faes, Camille | |
Gouraud, Etienne | |
Debevec, Tadej, 1978- | 28474 |
Pialoux, Vincent |
Vir: Osebne bibliografije
in: SICRIS
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