Navigation Links
Fetal Heart May Develop Later in Pregnancy Than Thought
Date:2/21/2013

THURSDAY, Feb. 21 (HealthDay News) -- The human heart is not fully formed until much later in pregnancy than previously thought, a new study suggests.

British researchers analyzed scans of the hearts of healthy fetuses in the womb and found that the heart has four clearly defined chambers in the eighth week of pregnancy, but does not have fully organized muscle tissue until the 20th week.

This is much later than expected, according to the study published Feb. 20 in the Journal of the Royal Society Interface Focus.

Previous studies of early heart development in humans have been largely based on other mammals -- such as mice or pigs -- as well as adult hearts and samples from dead people.

The data being collected by the University of Leeds-led team is being used to create a computerized simulation of fetal heart development. This will help improve understanding about normal heart development in the womb, and could lead to new ways to detect and treat some fetal heart problems early in pregnancy, according to the researchers.

Human fetuses have a regular heartbeat beginning at about 22 days of pregnancy, which is one reason why the researchers were surprised to find that there is little organization of human heart cells until 20 weeks of pregnancy.

"For a heart to be beating effectively, we thought you needed a smoothly changing orientation of the muscle cells through the walls of the heart chambers. Such an organization is seen in the hearts of all healthy adult mammals," Dr. Eleftheria Pervolaraki, a visiting research fellow at the University of Leeds' School of Biomedical Sciences, said in a university news release.

"Fetal hearts in other mammals such as pigs, which we have been using as models, show such an organization even early in gestation, with a smooth change in cell orientation going through the heart wall. But what we actually found is that such organization was not detectable in the human fetus before 20 weeks," she explained.

More information

The Nemours Foundation offers a fetal development calendar.

-- Robert Preidt

SOURCE: University of Leeds, news release, Feb. 20, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Fetal exposure to tributyltin linked to obesity
2. Fetal Deaths Up Among Unvaccinated Moms in H1N1 Pandemic: Study
3. Women and Infants Maternal-Fetal Medicine specialist selected for editorial team
4. Treating sleep-disordered breathing in pregnancy may improve fetal health
5. Prenatal Antidepressants Dont Raise Fetal, Infant Death Risk: Study
6. Plastics Chemical BPA Found in Fetal Livers
7. U-M study shows BPA exposure in fetal livers
8. Fetal alcohol exposure affects brain structure in children
9. Dangerous experiment in fetal engineering
10. Pregnant Mothers Gut Changes May Support Fetal Growth
11. New Stanford method enables sequencing of fetal genomes using only maternal blood sample
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fetal Heart May Develop Later in Pregnancy Than Thought
(Date:5/31/2016)... , ... May 31, 2016 , ... ... and numeral energies can describe personality traits in humans. Using presidential candidate Donald ... their name and vitality. , “AstroNumerology is not about adding numbers up,” ...
(Date:5/31/2016)... , ... May 31, 2016 , ... Interest is on ... screening tool and as an orthogonal tool for RNAi hit validation. A key reason ... specific guide RNAs—allows rapid generation of CRISPR RNA (crRNA) collections in arrayed formats. ...
(Date:5/31/2016)... ... May 31, 2016 , ... In a recent interview on The ... on New Rochelle, NY-based WVOX (1460 AM), leading medical insurance advocate Adria ... the country’s “modern medical money maelstrom.” , During the interview with Mr. Feiner ...
(Date:5/31/2016)... ... May 31, 2016 , ... Advertising Age has ... statement solutions provider, for the tenth consecutive year as a Top 20 Marketing ... Age, and SourceLink ranked eighteenth in the “U.S. CRM/Direct Marketing Agency” category. ...
(Date:5/31/2016)... ... 2016 , ... Super Powder, a supplement produced by Prox Formulas for providing ... athletes, continues to transform the nutritional supplement industry by providing a safe, natural approach ... amino acids (BCAA), alkaline minerals, wheat grass, digestive enzymes, Omega 3’s, Vit D3, Vit ...
Breaking Medicine News(10 mins):
(Date:5/30/2016)... LifeScienceIndustryResearch.com adds "Ulcerative Colitis ... with comprehensive information on the therapeutic development for ... stages, therapeutics assessment by drug target, mechanism of ... type, along with latest updates, and featured news ... involved in the therapeutic development for Ulcerative Colitis ...
(Date:5/27/2016)... India , May 27, 2016 ... the instances of hypertension is driving ambulatory blood pressure ... lose their elasticity and their ability to respond to ... pressure. This condition can lead to various cardiovascular disorders ... peripheral vascular disease. These diseases are growing in prevalence ...
(Date:5/27/2016)... 27, 2016 The healthcare sector ... insurance companies all falling under its umbrella.  A rather ... not often talked about, these healthcare companies are still ... is by far the largest consumer of ... Corp. (OTC: ADMD), Nutranomics Inc. (OTC: NNRX), KollagenX Corp. ...
Breaking Medicine Technology: