Navigation Links
Breastfeeding boost IQ in infants with 'helpful' genetic variant
Date:11/5/2007

New Haven, Conn.Breastfeeding boosts infants IQs, but only if the babies have a genetic variant that enhances their metabolism of breast milk, a Yale researcher and collaborators report today in Proceedings of the National Academy of Sciences.

It is this genetic variant in FADS2, a gene involved in the control of fatty acid pathways, that may help the children make better use of the breast milk and promote the brain development that is associated with a higher IQ score, said Julia Kim-Cohen, assistant professor of psychology and a member of the research team.

Children who do not carry the helpful genetic variant have normal average IQ scores, Kim-Cohen said. Being breastfed for them is not associated with an IQ advantage.

The study included researchers from Kings College, London, Duke University, and the University of Otago in Dunedin, New Zealand.

The intelligence quotient (IQ) has long been at the heart of debates about nature versus nurture. Twin studies document both strong genetic influences and nongenetic environmental influences on IQ, particularly for young children.

This study looked at how long-chain polyunsaturated fatty acids (LC-PUFAS), which are present in human milk but not in cows milk or most infant formulas, are metabolized. LC-PUFAS in breast milk, the authors said, is believed to enhance cognitive development because the fatty acids are required for efficient neurotransmission and are involved in neuronal growth and regeneration.

The study included 1,037 children in New Zealand and 1,116 families with same sex twins in England and Wales. Those who were breastfed and had the genetic variant FADS2 had IQs that were 5.6 to 6.3 points higher than children who were breastfed but did not have the variant.

The finding has many implications, including for the public understanding of genetics, the authors said. To date, research on gene-environment interactions has been dominated by the search for genetic variants that increase disease susceptibility to environmental pathogens. However, genes are not only implicated in disease. Here we have shown that a genetic variant may also enhance a favorable response to a health promoting exposure present throughout human ancestry.


'/>"/>

Contact: Jacqueline Weaver
jacqueline.weaver@yale.edu
203-432-8555
Yale University
Source:Eurekalert

Related biology news :

1. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
2. Rutgers high school outreach gets $3 million boost from NSF
3. Breast cancer research and inkjet tissue printing get NSF boost
4. Monkeys use baby talk to interact with infants
5. Soy isoflavone may inhibit common gastrointestinal illness in infants
6. Does the desire to consume alcohol and tobacco come from our genetic makeup?
7. Diverse genetic abnormalities lead to NF-κB activation in multiple myeloma
8. Many parents at-risk for cancer disclose genetic test results to children
9. Genetics determine optimal drug dose of common anticoagulant
10. Claims of sex-related differences in genetic association studies often not properly validated
11. American College of Medical Genetics responds to new FDA labeling decision for warfarin
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/7/2016)... 2016  Syngrafii Inc. and San Antonio Credit ... includes integrating Syngrafii,s patented LongPen™ eSignature "Wet" solution ... will result in greater convenience for SACU members ... maintaining existing document workflow and compliance requirements. ... Highlights: ...
(Date:6/2/2016)... June 2, 2016 Perimeter Surveillance ... Unmanned Systems, Physical Infrastructure, Support & Other Service  ... visiongain offers comprehensive analysis of the global ... will generate revenues of $17.98 billion in 2016. ... Inc, a leader in software and hardware technologies for ...
(Date:5/16/2016)... , May 16, 2016   EyeLock LLC ... today announced the opening of an IoT Center of ... strengthen and expand the development of embedded iris biometric ... unprecedented level of convenience and security with unmatched biometric ... one,s identity aside from DNA. EyeLock,s platform uses video ...
Breaking Biology News(10 mins):
(Date:6/23/2016)...  Amgen (NASDAQ: AMGN ) today announced ... life sciences incubator to accelerate the development of new ... at QB3@953 was created to help high-potential life science ... early stage organizations - access to laboratory infrastructure. ... two "Amgen Golden Ticket" awards, providing each winner with ...
(Date:6/22/2016)... 22, 2016 Cell Applications, Inc. and ... to produce up to one billion human induced ... one week. These high-quality, consistent stem cells enable ... and spend more time doing meaningful, relevant research. ... high-volume manufacturing process that produces affordable, reliable HiPSC ...
(Date:6/22/2016)... 22, 2016  According to Kalorama Information, the ... (NGS) market include significant efforts in automation as ... accessible and affordable sequencers, say the healthcare market ... consumables including sample prep materials.  The healthcare market ... Preparation for Next Generation Sequencing (NGS) , highlights ...
(Date:6/22/2016)... ... June 22, 2016 , ... Quantitative Radiology Solutions, the newest ... participant in the Phase 1 Ventures program, is leveraging regional and federal resources ... Solutions helps physicians make better treatment decisions by quantifying medical imaging using a ...
Breaking Biology Technology: