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:8/18/2017)... ... August 18, 2017 , ... More than 20,000 pairs of ... Congo (DRC) thanks to an ambitious venture that conjoined the passions of an NBA ... support of the Liberty community. These shoes will save lives from the rampant infections ...
(Date:8/18/2017)... ... August 18, 2017 , ... Mediaplanet today announces the launch ... lifestyles and highlighting the importance of proactive eye and ear health. The campaign ... latest innovations in hearing aid technology. , In this issue, the National ...
(Date:8/18/2017)... , ... August 18, 2017 , ... ... handling handheld devices. Through an educational webinar, they will present the line of ... chance to learn how easy you can automate everyday pipetting tasks. , Ideal ...
(Date:8/18/2017)... ... 2017 , ... Radabaugh & Associates, a family managed agency ... West Virginia, is embarking on a cooperative charity effort with the Chestnut Mountain ... Chestnut Mountain Ranch (CMR) is a Christ-centered boarding school for young men offering ...
(Date:8/18/2017)... ... August 18, 2017 , ... The Brian Gifford Agency, an ... is campaigning in support of Campagna Academy in a charity drive to provide for ... Boys’ Town of Indiana,” Campagna Academy is a nonprofit organization that has offered critical ...
Breaking Medicine News(10 mins):
(Date:8/15/2017)... AccuGenomics, Inc., a diagnostic company based in ... the company has provided an AccuKit to the HIV ... Chapel Hill and to Qura Therapeutics for evaluation in ... HIV reservoir and viral expression in human CD4+ T ... Center is a joint initiative between the University of ...
(Date:8/8/2017)... Aug. 8, 2017  BioLineRx Ltd. (NASDAQ/TASE: BLRX), a ... reports its financial results for the second quarter ended ... the second quarter 2017 and to date: ... development programs for the Company,s lead project, BL-8040: ... study with BL-8040 as novel stem cell mobilization treatment ...
(Date:8/7/2017)... 2017  Diplomat Pharmacy, Inc. (NYSE: DPLO), the nation,s largest ... June 30, 2017.  All comparisons, unless otherwise noted, are to ... Second Quarter 2017 Highlights include: ... an increase of 3.5% Total prescriptions dispensed ... of 7.5% versus 7.6% Gross profit ...
Breaking Medicine Technology: