Navigation Links
Babies born to native high-altitude mothers have decreased risk of low birth weight
Date:5/17/2009

s pronounced in the Andean women, who have adapted genetically to the high altitude. The researchers measured uterine artery blood flow by ultrasound at 20 weeks and 36 weeks of pregnancy, and three months post-partum. They also tracked fetal growth across pregnancy using ultrasound to measure fetal head and abdominal circumference, femur length and estimated fetal weight. The study found the following:

  • At sea level, the changes in uterine artery size during pregnancy were about the same for both the Andean and European women. There were no differences in fetal growth or birth weight between the two groups.
  • At high altitude, the uterine artery of both groups dilated less, reflecting the oxygen-poor environment.
  • Among the high-altitude group, the Andean women's blood flow was 68% greater at 20 weeks of pregnancy compared to the non-pregnant state, and the fetuses were larger at this stage. This suggests that the uterine artery is playing a causal role in the lower birth weight, as opposed to being a result of having a smaller baby and needing less oxygen or fewer nutrients, Dr. Julian said.
  • Among the high-altitude group, oxygen delivery to the fetus was nearly 2-fold greater in the Andean women at week 36.

The researchers also found a relationship at high altitude between the percent of indigenous Andean ancestry and the uterine artery blood flow, uterine oxygen delivery, and birth weight. In other words, the more Andean a woman was, the greater the uterine artery blood flow, the more nutrients delivered to the infant and the greater the birth weight.

This research may one day have implications for the development of therapeutic strategies to increase uterine artery blood flow or to change the way the blood vessels respond during pregnancies that are complicated by hypoxia and/or reduced fetal growth.


'/>"/>

Contact: Christine Guilfoy
cguilfoy@the-aps.org
301-634-7253
American Physiological Society
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. If you want more babies, find a man with a deep voice
2. Evidence of a relationship between swimming babies and infections
3. Scientists find predisposition to bronchiolitis in some babies
4. Breathless babies: Preemies lung function shows prolonged impairment
5. Bacterial infections in premature babies more common than previously realized
6. Fewer babies born after Caesarean delivery
7. Exercise during pregnancy leads to a healthier heart in moms- and babies-to-be
8. Too much or too little weight gain poses risks to pregnant mothers, babies
9. Embryo biopsy does not affect early growth and risk of congenital malformations in PGD/PGS babies
10. Codeine not safe for all breastfeeding moms and their babies
11. Virus weaves itself into the DNA transferred from parents to babies
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Babies born to native high-altitude mothers have decreased risk of low birth weight
(Date:2/5/2015)... 5, 2015  Marken is starting its 35 th ... launched a new marketing campaign to solidify its place ... new campaign focuses on First as a ... The first headline in the series, ... with its client,s priorities. Marken recognizes the need to ...
(Date:2/5/2015)... IRVINE, Calif. , Jan. 27, 2015 ... trusted provider of globally deployed, innovative test ... today announced the delivery of its ... Martin Space Systems Company (LMSSC). GENASYS is ... the demands of mission-critical applications that require ...
(Date:2/5/2015)... , Jan. 28, 2015 Research and Markets ... addition of the "Global Biometrics Market (2014-2020): ... and Countries " report to their offering. ... Asia-Pacific is anticipated to overtake ... owing to increasing government spending towards IT security, ...
Breaking Biology News(10 mins):Marken Launches New Patient-Centric Campaign 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 3
... in the open Pacific Ocean ecosystem since around 1850, according ... Santa Cruz. The findings, published December 15 in Nature ... food web observed in recent decades in the North Pacific ... at the end of the Little Ice Age. Deep-sea ...
... fuse with macrophages, the immune system,s healthy scavenger cells, play ... cancer to other areas of the body, according to research ... for Cell Biology annual meeting in New Orleans. ... at Oregon Health & Science University (OHSU) in Portland followed ...
... of immune cells, in the microenvironment surrounding the lethal ... extended survival of laboratory mice with the cancer, scientists ... Society for Cell Biology (ASCB) annual meeting in New ... death, were higher in the mice treated with the ...
Cached Biology News:Deep-sea corals record dramatic long-term shift in Pacific Ocean ecosystem 2Deep-sea corals record dramatic long-term shift in Pacific Ocean ecosystem 3Deep-sea corals record dramatic long-term shift in Pacific Ocean ecosystem 4Spontaneous fusion with macrophages empowers cancer cells to spread 2Blocking tumor-associated macrophages decreased glioblastoma's growth & extended survival in mice 2
(Date:2/26/2015)... Calif. , Feb. 26, 2015 Protiviti ... the latest version of the Governance Portal , ... governance, risk and compliance (GRC) tasks across multiple business ... been updated to help customers better align their controls ... the Treadway Commission ) requirements. In response to client ...
(Date:2/26/2015)... February 26, 2015 The Movement for ... to support life extension technologies and awareness. The event ... Coordinated Time, on March 21st 2015, in a live ... , Eric Schulke, Founder of MILE, says, “Our lives ... urgency. The Movement for Indefinite Life Extension is raising ...
(Date:2/26/2015)... , Feb. 26, 2015  NuGene International, ... aesthetic products for skin and hair rejuvenation, has ... as agency of record for investor relations and ... improve our distribution, sales and diversification strategies – ... current and prospective shareholders," stated Ali Kharazmi CEO ...
(Date:2/26/2015)... , Feb. 26, 2015 BioEnterprise today ... companies have attracted more than $2 billion in growth ... local and national investors, strategic sources, state – including ... half of the $2 billion has been raised in ... comes on the heels of the BioEnterprise Midwest ...
Breaking Biology Technology:Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 2Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 3Indefinite Life Extension Activists Organize Online Demonstration 2Indefinite Life Extension Activists Organize Online Demonstration 3NuGene International, Inc. Selects Capital Market Relations for Strategic Investor Relations 2NuGene International, Inc. Selects Capital Market Relations for Strategic Investor Relations 3More Than $2 Billion Invested in Northeast Ohio Bioscience Start-Up Companies Since 2002 2More Than $2 Billion Invested in Northeast Ohio Bioscience Start-Up Companies Since 2002 3More Than $2 Billion Invested in Northeast Ohio Bioscience Start-Up Companies Since 2002 4
... - Former Kimberly-Clark CEO Darwin Smith may or ... sparked a debate. , ,It was 1983, and Wisconsin had ... to address a budget deficit with an income tax increase, ... high taxes on the state's business climate. , ,Two years ...
... the way we think about work life isn't. Everyone ... but nobody is ready to translate this into actual ... and life satisfaction." , ,This quote by a ... Rappaport, Suzan Lewis and Richenda Gambles entitled, "Work-Personal Life ...
... a Madison company that develops and markets molecular diagnostic reagents ... to its board of directors. , ,Napier's background in general ... according to president and CEO Kevin T. Conroy. She was ... of products at Procter & Gamble and ...
Cached Biology Technology:RedPrairie: Will they stay, or will they go? 2RedPrairie: Will they stay, or will they go? 3RedPrairie: Will they stay, or will they go? 4Work-life imbalance - A global problem getting worse 2Work-life imbalance - A global problem getting worse 3Work-life imbalance - A global problem getting worse 4Work-life imbalance - A global problem getting worse 5Napier joins board of Third Wave Technologies 2
... RNA gel stain is a sensitive ... fluorescence when bound to RNA and low ... use with either formaldehyde/agarose or polyacrylamide gels ... A 500 µL unit size (S-7564) and ...
... reports the data from any one of IITC ... recorder. The final data is sent from the ... is automatic for Systolic, Mean, Heart Rate while ... is always in the position to override the ...
... QPatch HT is taking automated patch clamping to ... its ability to generate thousands of high quality ... screening paradigms in ion channel drug discovery and ... high quality afforded by conventional patch clamping can ...
... of mouse embryonic stem cells to dopaminergic ... midbrain, where they are mainly located in ... and the retrorubral field. These dopaminergic (DA) ... innervation ( e.g.projections to the caudate nucleus, ...
Biology Products: