HOME >> BIOLOGY >> NEWS
Link found between low birth weight and DNA from mothers

Using a unique set of data collected over 30 years and six generations of captive-bred monkeys, researchers have found the first evidence that low birth weight is linked to a type of DNA only passed along by females.

"This is why, when it comes to birth weight, we tend to be more like our mother than our father," said James Ha, a University of Washington research professor of psychology and lead author of a study published in the current issue of the American Journal of Primatology. The National Institutes of Health funded the research.

"We definitely think that our findings will hold up when human data becomes available," he said. "Some people have suggested that birth weight in a number of species including humans is closer to the mother than the father. But there never has been adequate data to test a hypothesis of cytoplasmic DNA inheritance. Instead, human research has focused on environmental causes."

While the new study links maternal genetics to low birth weight, it does not mean pregnant women should ignore known environmental risk factors such as alcohol, drugs and a poor diet that contribute to the birth of underweight babies. Ha said that there is more than one type of DNA, or deoxyribonucleic acid, the material in cells that carries the genetic code and transmits hereditary traits.

"People tend to look at DNA as only being inside the nucleus of a cell. However, there also is DNA in the cytoplasm that surrounds the nucleus inside the cell membrane. Some of this DNA is found in mitochondria."

Mitochondria are structures that are the so-called "powerhouses" that control energy production in cells and mitochondrial inheritance is only passed along to offspring by the mother. He said the connection between how much energy is produced and low birth weight "makes so much sense."

Ha calculated that cytoplasmic DNA from mitochondria is responsible for 9 percent of the variability in birth we
'"/>

Contact: Joel Schwarz
joels@u.washington.edu
206-543-2580
University of Washington
24-Apr-2002


Page: 1 2 3

Related biology news :

1. New signs of life found at the Poles
2. Key cell-death step found
3. European common frog found to use novel mating strategy
4. Byproduct of water-disinfection process found to be highly toxic
5. Genuine stem cells found in skin might treat hair loss, wounds
6. Flame retardants found on supermarket shelves
7. Anti-cancer compound in vegetables found to block late-stage breast-cancer cell growth
8. Genetic clues found for common congenital brain disorder
9. New clues to hereditary blinding disease found
10. Anti-bacterial additive found in Maryland streams
11. Genetic mutation linked to more aggressive breast cancer found more often in African-Americans

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:9/22/2018)... BUDAPEST, Hungary (PRWEB) , ... September 20, 2018 ... ... and technology company PIRCHE AG, headquartered in Berlin announce a collaboration to deliver ... sequences assembled from NGS data of the HLA region. For the first time, ...
(Date:9/15/2018)... ... ... The first ever production picosecond-domain laser with a 785?nm wavelength was recently developed ... often the colors most resistant to laser removal. , A clinical trial published in ... Laser Medicine and Surgery, Inc. (ASLMS) investigated the safety and efficacy of the new ...
(Date:9/12/2018)... , ... September 11, 2018 , ... ... is proud to introduce the new ChemXP™ line of high performance secondary containment ... line was developed to provide Tennant Coatings’ elite certified installers with the needed ...
Breaking Biology News(10 mins):
(Date:9/22/2018)... ... September 20, 2018 , ... ... strategic venture. The synergistic combination of Predicine’s GeneRADAR molecular insights platform with ... profiling to empower clinical trials in the immuno-oncology (IO) space. , IO ...
(Date:9/13/2018)... BOSTON (PRWEB) , ... September 13, 2018 , ... ... do you think we would have gotten in medicine, if we didn’t have the ... medicines used to treat patients?” His answer, “Nowhere! And that is what’s holding ...
(Date:9/7/2018)... ... ... Now available on live stream, the NanoScientific Symposium on SPM at SUNY ... panel of industry leaders from Harvard, Cornell, RPI, IBM, SUNY and more to discuss ... the field. Register today to be a part of the nanometrology conference that ...
(Date:9/1/2018)... ... August 31, 2018 , ... Rudina Thanasi, a ... a proprietary biofield energy treated nutraceutical supplement used in combating inflammation and autoimmune ... and blood, as well as, organ-specific inflammation. The reported data is as follows: ...
Breaking Biology Technology:
Cached News: