Navigation Links
Sheep Offer Model for Undernourishment in Pregnant Teen Girls

Two papers selected for publication in the August 2007 issue of Biology of Reproduction demonstrate that adolescent female sheep that become pregnant before they have achieved their full growth may not be able to supply enough nourishment for their fetuses to develop without physical deficits.

These studies may also have implications for managing pregnancies of adolescent human females, who, in increasing numbers worldwide, are bearing offspring before they have finished growing.

A team of scientists, headed by Dr. Jacqueline Wallace of the Rowett Research Institute in Aberdeen, Scotland, found that limiting the food intake of adolescent ewes during pregnancy impairs the nutrient supply to their fetuses and slows the growth of soft tissue in the fetuses.

In a related finding, the team reported that a possible factor in the reduction of nutrients to the fetuses in undernourished adolescent ewes is a change in the development of blood vessels supplying nutrients to the uterus and placenta during pregnancy.

Because the changes in placental blood vessels could not be reversed by returning undernourished ewes to an optimal diet later in their pregnancy, Wallaces team pointed out the importance of adequate weight gains by pregnant teenaged girls, especially during the first two trimesters, to reduce the chance of a low-birth-weight infant.

In this study, a pregnancy was produced in each experimental ewe by implanting a single egg fertilized with the sperm of just one male sheep.

The control group of animals received an optimal diet for maintaining their pregnancies. Ewes in the experimental group were provided a diet that sustained their bodyweight at the time they became pregnant; as a result, their reserves of fat and other tissues were gradually depleted during the course of gestation.

The researchers point to evidence that competition for nutrients between a mother and her fetus "will impair nutrient supply in girls who are still growing during pregnancy. Thus formulating correct dietary advice for these young adolescent girls is likely to be complex, particularly if the mother has not completed her own growth. Our results suggest that biomarkers of growth and nutritional status at the time of conception and at mid-pregnancy, and the use of ultrasound to detect whether placental growth and function have been perturbed, may prove beneficial in the optimal management of adolescent pregnancies."


'"/>




Related medicine news :

1. Holy Cow! Rare “Mad Sheep” Strain Suspected in Frane
2. Scare of Brain Disease Transmitted To Humans from Mutton of Affected Sheep
3. New Zealand Requests Details from Britain about ‘Black Sheep
4. Wolves in Sheep’s Clothin
5. Now Scientists Create a Sheep Thats 15% Human
6. Pancreatitis: Minimially Invasive Procedure Offers Long-Term Pain Relief
7. Drug Offers Hope for Alzheimers disease
8. Drug Firm Offers to Donate Smallpox Vaccine
9. Stem Cells Found To Offer Promise For Hair Growth
10. fMRI Offers Insight Into An Infants Brain
11. Diet Found To Offer Protection Against Leukemia
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/12/2017)... ... 12, 2017 , ... First Healthcare Compliance (FHC), an industry ... a range of technology and learning solutions at the 68th Annual American Healthcare ... be held October 14–18, 2017 at the Mandalay Bay Resort in Las Vegas, ...
(Date:10/12/2017)... ... October 12, 2017 , ... The company has ... today’s consumer and regulatory authorities worldwide. From Children’s to Adults 50+, every formula ... the highest standard. , These products are also: Gluten Free, Non-GMO, Vegan, ...
(Date:10/12/2017)... ... ... Asante, a nationally recognized health system in southern Oregon, ... health joint venture through an agreement, effective October 1, 2017, to create AccentCare ... company with Asante, delivering clinically integrated care, for the past eight years. This ...
(Date:10/12/2017)... ... ... HMP , a leader in healthcare events and education, today announced that ... for ‘Best B-to-B Healthcare Website.’ Winners were announced during the Eddie & Ozzie Awards ... recognizes editorial and design excellence across a range of sectors. This year’s program included ...
(Date:10/12/2017)... ... October 12, 2017 , ... Women-owned ... Michigan’s 2017 Best and Brightest in Wellness® by Best and Brightest. OnSite Wellness ... on Friday, Oct. 20 from 7:30 a.m. to 2 p.m. at the Henry ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)... YORK , Sept. 27, 2017  DarioHealth Corp. (NASDAQ: DRIO), a ... today announced that its MyDario product is expected to appear on The ... when The Dr. Oz Show airs in your area: http://www.doctoroz.com/page/where-watch-dr-oz-show ... The nine-time Emmy award-winning, The Dr. Oz ... The ...
(Date:9/23/2017)... 2017 Janssen Biotech, Inc. (Janssen) announced today ... the U.S. Food and Drug Administration (FDA) for the ... the treatment of moderately to severely active rheumatoid arthritis ... are needed to further evaluate the safety of sirukumab ... "We are ...
(Date:9/19/2017)... -- HistoSonics, Inc., a venture-backed medical device company developing a non-invasive, robotically assisted, platform therapy ... team developments today:   ... ... Tom Tefft ... Veteran medical device executive Josh Stopek , PhD, who has led R&D ...
Breaking Medicine Technology: