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:3/30/2017)... ... March 30, 2017 , ... ... educational offerings of corporate finance programs to address the increasingly complex educational needs ... executives increase their knowledge of sophisticated corporate finance and will increase their ability ...
(Date:3/30/2017)... ... March 30, 2017 , ... ... of Nutrition and Dietetics (AND), will join nonprofit Seafood Nutrition Partnership (SNP) in ... live webinar designed to help nutrition educators and students inform consumers about the ...
(Date:3/29/2017)... ... 2017 , ... During the last week of March, Chad Kawa, MD of ... in the local community. , Colon cancer is the second leading cause of ... while it is small, confined and easier to treat. If you are 50 or ...
(Date:3/29/2017)... City, NY (PRWEB) , ... March 29, 2017 ... ... for men’s and women’s professional squash, announced it has enlisted New York City-based ... The agency will develop and procure sponsorship opportunities for the Professional Squash ...
(Date:3/29/2017)... MD (PRWEB) , ... March 30, 2017 , ... CHARM ... Charm City Run has announced that Mercy Medical Center will serve as the official ... the Mid-Atlantic region. On Sunday, June 25, 2017, thousands of women will walk or ...
Breaking Medicine News(10 mins):
(Date:3/30/2017)... YORK , March 30, 2017  Purcell Julie & ... shareholders nationwide, is investigating a potential breach of fiduciary duty ... (NASDAQ: SGYP ). If you ... obtaining additional information regarding this investigation, free of charge, please ... ...
(Date:3/29/2017)... Wound care devices and products are used ... The industry mainly consists of establishments engaged in manufacturing ... wounds caused by mechanical, chemical, thermal, and radiogenic trauma; ... diabetes, skin related diseases, immunological diseases, and other chronic ... the largest region in the wound care devices market ...
(Date:3/29/2017)... 2017 Global intravenous (IV) iron and oral iron ... growing at a CAGR of 5%. Iron ... to treat anemia or other iron deficiencies. Oral iron supplements ... However, in some cases, oral administrations are not capable of ... iron therapy comes into the picture. Global Intravenous ...
Breaking Medicine Technology: