期刊
REPRODUCTIVE SCIENCES
卷 18, 期 1, 页码 79-87出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/1933719110380061
关键词
cytokines; hypoxia; pregnancy; uterine artery
资金
- National Institutes of Health [HL60131, HL07171, HL079647]
- National Sciences Foundation
- American Heart Association [0610129Z]
- FOGARTY INTERNATIONAL CENTER [R03TW007957, R03TW001188] Funding Source: NIH RePORTER
- NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [R01HL060131, T32HL007171, R01HL079647] Funding Source: NIH RePORTER
Pro-versus anti-inflammatory cytokine balance is important for successful pregnancy. Chronic hypoxia alters cytokine levels and increases the frequency of fetal growth restriction (FGR). Multigenerational Andean (AND) versus shorter duration European (EUR) high-altitude (HA) residents are protected from altitude-associated FGR. To address whether ancestry group differences in cytokine levels were involved, we conducted serial studies in 56 low-altitude ([LA]; 400 m; n=29 AND and n=27 EUR) and 42 HA residents (3600-4100 m; n=19 ANDs and n=23 EURs). Pregnancy raised pro-(interleukin 1 beta [IL-1 beta]) and anti-(IL-10) inflammatory cytokines and HA lowered IL-6 and tumor necrosis factor-alpha (TNF-alpha) near term. There were no ancestry group differences in cytokine levels at any time, but HA reduced IL-1 beta in ANDs only near term. Higher IL-1 beta levels correlated with uterine artery (UA) blood flow at 20 weeks in ANDs at HA, suggesting that IL-1 beta may play a role in AND protection from altitude-associated reductions in fetal growth.
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