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

The Visible Embryo provides visual references for changes in fetal development throughout pregnancy and can be navigated via fetal development or maternal changes.

The National Institutes of Child Health and Human Development awarded Phase I and Phase II Small Business Innovative Research Grants to develop The Visible Embryo. Initally designed to evaluate the internet as a teaching tool for first year medical students, The Visible Embryo is linked to over 600 educational institutions and is viewed by more than ' million visitors each month.


WHO International Clinical Trials Registry Platform
The World Health Organization (WHO) has created a new Web site to help researchers, doctors and patients obtain reliable information on high-quality clinical trials. Now you can go to one website and search all registers to identify clinical trial research underway around the world!



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Disclaimer: The Visible Embryo web site is provided for your general information only. The information contained on this site should not be treated as a substitute for medical, legal or other professional advice. Neither is The Visible Embryo responsible or liable for the contents of any websites of third parties which are listed on this site.
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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 weeks 0 - 40 and follow fetal growth
Google Search artcles published since 2007
 
May 6, 2011--------News Archive

Winter Conceptions at Greater Risk Of Autism
More than 7 million children born in California in the 1990s and early 2000s showed a clear link between their month of conception and their risk of a diagnosis of autism.

Manhood Is a 'Precarious' State
Difficult to earn and easy to lose,"manhood" is a fragile state of mind dependent on NO role violations.


May 5, 2011--------News Archive

Autism Enlarges Brain Before Age 2
Research from the University of North Carolina at Chapel Hill notes that 2-year-old autistic children's brains are up to 10 percent larger than non-autistic children.

Autism: Broken Neurons or Just Slowly Developing?
Developmental abnormalities in the mirror neuron system may in individuals with autism is not actually broken, but simply delayed.


May 4, 2011--------News Archive

New Mothers Learn A Lot From Their Babies
The best teacher for a young mother is her baby, say experts who train social workers to interact with first-time moms.

H1N1, Pregnant Women Were Right To Worry
Women with H1N1 gave birth to lower birth weight babies compared to those who had “influenza-like illness.”


May 3, 2011--------News Archive

Early Nutrition Has A Long-Term Metabolic Impact
Growth, hormonal profiles differ between breastfed and formula-fed infants,

Grandma Was Right: Infants Do Wake Up Taller
Science is finally confirming what grandma knew all along: infants wake up taller right after they sleep.


May 2, 2011--------News Archive

Maternal Obesity Puts Infants At Risk
Carrying too much weight during pregnancy could affect newborns' iron status and brain development.

Errors Put Infants, Children At Risk For Overdose
Prescriptions for narcotics often contain too much medication per dose.

WHO Child Growth Charts


Image shows brain maturation measured by cortical thickness for a subject with autism at age 2 (left) and age 4 (right). Thicker areas of cortex are shown in red, while thinner cortical areas are displayed in green.

Credit: Image created by Clement Vachet, Neuro Image Research and Analysis Laboratories, UNC Department of Psychiatry.

In 2005, researchers from the University of North Carolina at Chapel Hill found that 2-year-old children with autism have brains up to 10 percent larger than children of the same age without autism.

Now a follow-up study by UNC researchers has found that the children who had enlarged brains at age 2 continued to have enlarged brains at ages 4 and 5, but the amount of the enlargement was to the same degree found at age 2.

This increased brain growth did not continue beyond 2 years of age and the changes detected at age 2 were due to overgrowth prior to that time point. In addition, the study found that the cortical enlargement was associated with increased folding on the surface of the brain (or increased surface area) and not an increase in the thickness of outer layer of the brain (or gray matter).

"Brain enlargement resulting from increased folding on the surface of the brain is most likely genetic in origin and a result of an increase in the proliferation of neurons in the developing brain," said Heather Cody Hazlett, PhD, assistant professor in the Department of Psychiatry, who is the lead author of the new study, which is published in the May 2011 issue of Archives of General Psychiatry.

In both the 2005 study and the new study, Hazlett and colleagues analyzed magnetic resonance imaging (MRI) scans of the children's brains using computer software developed for that purpose by Martin Styner, PhD, an assistant professor of computer science and psychiatry at UNC, and Guido Gerig, PhD, formerly at UNC and now at the University of Utah.

"From earlier work by our group on head circumference or head size in children with autism, we think that brain overgrowth in many children with autism may actually be happening around the first birthday. Together these findings suggest that we should be searching for genes that may underlie the over-proliferation of neurons in this early post-natal period," said Joseph Piven, MD, senior author of the new study and director of the Carolina Institute for Developmental Disabilities.

UNC is currently leading two separate studies aimed at that goal. Hazlett leads the Brain Development in School Age Children with Autism study, which is funded by Autism Speaks. "It was important to continue to follow these children to track their brain development to see if the brain and behavioral differences we observed were maintained as the children matured," said Hazlett.

UNC is also leading the Infant Brain Imaging Study (IBIS), a National Institutes of Health-funded multi-center study which includes four sites around the U.S.

"We are studying infant children at high genetic risk for autism, by virtue of their having an older brother or sister with autism – somewhere around 20 percent of those children will develop autism. We are doing brain scans and behavior assessments on those children at 6, 12 and 24 months of age to look at how the brain develops in the subgroup that develop autism before they have symptoms of autism at 6 months of age and over the interval that they develop autism - between 6 and 24 months of age, in most cases," Piven said. "We are also looking at whether specific gene alterations may be responsible."

More information about IBIS is available at http://www.ibisnetwork.org/.

Authors of the May 2011 article in Archives of General Psychiatry, in addition to Hazlett, are Michele Poe, PhD, Guido Gerig, PhD, Martin Styner, PhD, Chad Chappell, Rachel Gimpel Smith, Clement Vachet, MS, and Piven.

The UNC authors are all affiliated with one or more of the following: The Department of Psychiatry in the School of Medicine, the Carolina Institute for Developmental Disabilities, the Frank Porter Graham Child Development Institute, and the Department of Computer Science in the College of Arts and Sciences.