Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Prenatal Zinc Supplementation Could Impair Childhood Mental Development

26.07.2002


Authors of a study in this week’s issue of THE LANCET caution that the provision of zinc supplementation to pregnant women in developing countries could impair the early mental development of their children. Zinc deficiency is common in developing countries due to a diet that is low in animal protein and high in fibre. Supplements given to Bangladeshi pregnant women have previously been shown to improve infant growth and to reduce susceptibility to infectious diseases. In a follow-up study, Sally Grantham McGregor and Jena Habadani from the Institute for Child Health, London, UK, and colleagues from the International Center for Diarrhoeal Disease Research, Bangladesh, assessed these infants at 13 months of age to investigate the effect of antenatal zinc supplementation on infant development and behaviour.

The mental development of 168 infants (whose mothers received either 30 mg per day of zinc or placebo during pregnancy) were assessed. Infants in the placebo group had higher scores for both mental and psychomotor development. Zinc supplementation had no significant effect on behaviour or growth. The children’s nutritional status was poor—weight-for-age at testing was strongly related to development.

Sally Grantham McGregor comments: “Undernutrition is generally accepted to be detrimental to children’s development, our findings emphasise the serious nature of the problem in populations with high proportions of underweight children. Since zinc supplementation in infants has a beneficial effect on growth and morbidity, and supplementation of mothers was associated with reduced morbidity in low birthweight infants in this study, our findings complicate policy making…Undernourished pregnant women obviously require more than zinc alone. The next step would be to examine the effect of more comprehensive supplementations to improve maternal nutritional status during pregnancy on a broad range of outcomes including infants’ development.”

Full text of this paper (pdf 84.17kb)

Richard Lane | AlphaGalileo
Further information:
http://www.lancet.com

More articles from Studies and Analyses:

nachricht The importance of biodiversity in forests could increase due to climate change
17.11.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Win-win strategies for climate and food security
02.10.2017 | International Institute for Applied Systems Analysis (IIASA)

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New proton record: Researchers measure magnetic moment with greatest possible precision

High-precision measurement of the g-factor eleven times more precise than before / Results indicate a strong similarity between protons and antiprotons

The magnetic moment of an individual proton is inconceivably small, but can still be quantified. The basis for undertaking this measurement was laid over ten...

Im Focus: Frictional Heat Powers Hydrothermal Activity on Enceladus

Computer simulation shows how the icy moon heats water in a porous rock core

Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Lightning, with a chance of antimatter

24.11.2017 | Earth Sciences

A huge hydrogen generator at the Earth's core-mantle boundary

24.11.2017 | Earth Sciences

Scientists find why CP El Niño is harder to predict than EP El Niño

24.11.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>