Navigation Links
Gestational Period Depends on Structure of Placenta: Research
Date:11/17/2010

WEDNESDAY, Nov. 17 (HealthDay News) -- The structure of the placenta influences the relatively long nine-month pregnancy in humans, researchers say.

In their study, the investigators found that babies grow twice as fast in the wombs of some mammals compared to others and that the difference in growth rate is due to the structure of the placenta and the way it connects the mother and baby.

The more intimate the connection between the mother and the fetus, the faster the baby grows and the shorter the pregnancy, said the researchers at Durham and Reading universities in England.

Human placentas do not form the complex web-like structure seen in animals such as dogs and leopards, which helps explain why humans have longer pregnancies, the study authors explained.

The researchers looked at 109 mammal species and found that the placenta in some species is "highly folded," resulting in a larger surface area that increases the rate at which nutrients are passed from the mother to the baby.

"This study shows that it is not necessarily the contact with maternal blood which determines speed of growth, but the extent to which the tissues of mother and baby are 'interlocked,' or folded, with one another," lead author Dr. Isabella Capellini said in a Durham University news release.

"In humans, the placenta has simple finger-like branches with a relatively limited connection between the mother's tissues and those of the fetus, whereas in leopards, for example, it forms a complex web of interconnections that create a larger surface area for the exchange of nutrients," she explained.

The study findings are published in the current issue of the journal American Naturalist.

More information

The U.S. National Library of Medicine outlines fetal development.

-- Robert Preidt

SOURCE: Durham University, news release, Nov. 16, 2010


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Can Wii help control gestational diabetes?
2. Metabolic status before pregnancy predicts subsequent gestational diabetes
3. Women with gestational diabetes have increased risk of recurrence in subsequent pregnancies
4. Gestational Diabetes Linked to Serotonin and Dietary Protein
5. Twice as Many Women May Soon Be Diagnosed With Gestational Diabetes
6. Pregnancy Weight Gain, Especially in 1st Trimester, May Increase a Womans Risk of Gestational Diabetes
7. Excessive Weight Gain During Pregnancy Raises Gestational Diabetes Risk
8. Successful periodontal therapy may reduce the risk of preterm birth, according to Penn dental study
9. Researchers study relationship of oral cancers and periodontal disease
10. Centage Corporation Reports 51% Growth in Revenue for Q1 over Same Period as Last Year
11. New Period of Brain ‘Plasticity' Created with Transplanted Embryonic Cells
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Gestational Period Depends on Structure of Placenta: Research
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( https://isocomforter.com ), ... of an innovative new design of the shoulder pad. The shoulder pad provides ... while controlling your pain while using cold therapy. By utilizing ice and water that ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information ... we intend to develop to enable prevention of a major side effect of ... loss, especially in pediatric patients. For cisplatin, hearing loss is FDA listed on-label ...
(Date:10/12/2017)... ... 2017 , ... Leading pediatric oncology experts at Children’s National Health System ... Congress of the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired by ... and Blood Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief of ...
(Date:10/12/2017)... ... October 12, 2017 , ... Health Literacy Innovations ... literacy software tool, and the Cancer Patient Education Network (CPEN), an independent professional ... announce a new strategic alliance. , As CPEN’s strategic partner, HLI will ...
(Date:10/12/2017)... ... October 12, 2017 , ... Farm Forward joins ... other leading institutions in announcing the launch of the Leadership Circle , ... animals are raised for food. , Founding members of the Leadership Circle also ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... OBP Medical , a leading ... today announced regulatory approval from Brazil,s ... Nacional de Vigilância Sanitária (ANVISA)) to market ... with integrated LED light source and smoke evacuation ... of a tissue pocket or cavity during surgical ...
(Date:10/2/2017)... 2017 The Rebound mobile app is poised to ... the tide of prescription drug addiction. The app empowers users ... and stepping down their dosage in a safe, controlled manner ... 2017; the first 100,000 people to sign up will enjoy ... ...
(Date:9/25/2017)... AMSTERDAM , Sept. 25, 2017   ... Trial Master File solutions, today—from the IQPC Trial ... Amsterdam , NL)—announced that EastHORN Clinical Services ... its clinical programs and TMF management. EastHORN, a ... Montrium,s eTMF platform to increase transparency to enable ...
Breaking Medicine Technology: