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Welcome to The Visible Embryo, a comprehensive educational resource on human development from conception to birth.

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Today, The Visible Embryo is linked to over 600 educational institutions and is viewed by more than 1 million visitors each month. The field of early embryology has grown to include the identification of the stem cell as not only critical to organogenesis in the embryo, but equally critical to organ function and repair in the adult human. The identification and understanding of genetic malfunction, inflammatory responses, and the progression in chronic disease, begins with a grounding in primary cellular and systemic functions manifested in the study of the early embryo.

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Pregnancy Timeline by SemestersFetal liver is producing blood cellsHead may position into pelvisBrain convolutions beginFull TermWhite fat begins to be madeWhite fat begins to be madeHead may position into pelvisImmune system beginningImmune system beginningPeriod of rapid brain growthBrain convolutions beginLungs begin to produce surfactantSensory brain waves begin to activateSensory brain waves begin to activateInner Ear Bones HardenBone marrow starts making blood cellsBone marrow starts making blood cellsBrown fat surrounds lymphatic systemFetal sexual organs visibleFinger and toe prints appearFinger and toe prints appearHeartbeat can be detectedHeartbeat can be detectedBasic Brain Structure in PlaceThe Appearance of SomitesFirst Detectable Brain WavesA Four Chambered HeartBeginning Cerebral HemispheresFemale Reproductive SystemEnd of Embryonic PeriodEnd of Embryonic PeriodFirst Thin Layer of Skin AppearsThird TrimesterSecond TrimesterFirst TrimesterFertilizationDevelopmental Timeline
CLICK ON weeks 0 - 40 and follow along every 2 weeks of fetal development
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Home | Pregnancy Timeline | News Alerts | News Archive June 20, 2013

 
Iodine rich vegetables
Iodine rich vegetables

Iodine deficiency is recognized by the World Health Organization (WHO)
as the most common preventable cause of brain damage in the world.







WHO Child Growth Charts

 

 

 

Iodine in bread not enough for pregnant women

Research from the University of Adelaide shows that iodized salt used in bread is not enough to provide healthy levels of iodine for pregnant women and their unborn children. The study-– led by researchers from the University's Robinson Institute – has prompted calls for pregnant women to keep taking iodine supplements.

Iodine deficiency is recognized by the World Health Organization (WHO) as the most common preventable cause of brain damage in the world.

"Iodine is an essential element which is important for human brain development and thyroid function," says one of the lead authors of the study, Associate Professor Vicki Clifton from the University's Robinson Institute and the Lyell McEwin Hospital. "In 2009, Australian bread producers began a mandatory program of iodine supplementation in bread to help provide a boost to iodine levels in the community. Our study was aimed at determining whether or not that was having a positive impact on iodine levels for pregnant women."

In the study, almost 200 South Australian women were tested throughout their pregnancy and six months after giving birth.

"We found that South Australian women are mildly iodine deficient. Despite the inclusion of iodized salt in bread, women who were not taking an iodine supplement during pregnancy were still suffering from iodine deficiency," Associate Professor Clifton says. "Those women who were taking a supplement in addition to eating bread with iodized salt were receiving healthy levels of iodine, well within WHO guidelines."

This is the latest study to follow on from the pioneering work of the University's Emeritus Professor Basil Hetzel AC, who began researching iodine deficiency more than 50 years ago at the Queen Elizabeth Hospital, in collaboration with the Papua New Guinea Public Health Department.

His work revealed very low urine iodine levels and high rates of goitre were associated with a form of brain damage called 'cretinism'. Professor Hetzel showed that this brain damage could be prevented by correcting the severe iodine deficiency before pregnancy.


"There's a lot of work going on around the world to ensure that pregnant women are receiving enough iodine for the healthy development of their unborn babies.

The message is simple: by taking iodine supplements, pregnant women will be able to prevent brain and organ development problems in their babies, and also maintain a healthy level of iodine for themselves."

Basil Hetzel, AC, Queen Elizabeth Hospital, Papua New Guinea, lead author


Professor Hetzel says Australia continues to be a world leader in this field, "but there is still very little public understanding about the dangers of iodine deficiency".

The results of this study were published in the Nutrition Journal.

Original press release: http://www.adelaide.edu.au/news/news62121.html