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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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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
 
September 23, 2011--------News Archive

Brain Wiring Continues Well Into Our 20s
The human brain doesn’t stop developing at adolescence, but continues well into our 20s, research from the University of Alberta demonstrates.

Vitamin D Deficiency Linked With Severe Asthma
Children with severe therapy-resistant asthma may have poorer lung function and worse symptoms due to lower levels of vitamin D in their blood.

Reprogramming Muscle Stem Cells to Regenerate
Researchers at the University of California, Berkeley, have turned back the clock on mature muscle tissue, coaxing it back to form new muscle.

September 22, 2011--------News Archive

BPA Changes In-Vitro Egg, Risking Down Syndrome
Bisphenol A is omnipresent in the plastic of common products such as beverage bottles, cans or baby bottles.

'Contaminants' Detected in Narragansett Watershed
Researchers say 'Emerging contaminants of concern' have been detected throughout the Narragansett Bay watershed.

New Plastics for Baby Bottles, Shopping Bags, More
With most of the plastics that define modern life dating to the1930s-1960s, a new breed of these ubiquitous materials are starting to gain a foothold.

September 21, 2011--------News Archive

Epigenetic Changes Don't (Neccessarily) Last
The first comprehensive inventory of epigenetic changes over several generations, shows that these changes often do not last.

Vacuum Device Makes Cellular Exploration Easier
New floating microscopic device will allow researchers to study a wide range of cellular processes.

September 20, 2011--------News Archive

11 Genetic Regions Link Schizophrenia/Bipolar Risk
Common genetic variants contribute to the risk of schizophrenia and bipolar disorder, an international research consortium has discovered.

Pediatric Brain Tumors
Regulatory protein presents potential drug target.

Crosstalk Between Bone, Fat and Pancreatic Cells
Cells in bone, fat and the pancreas appear to be talking to each other and one thing they likely are saying is, "Get moving."

September 19, 2011--------News Archive

Gene Catastrophe Causes Developmental Delay
Research has identified some cases of developmental delay or cognitive disorders associated with a sudden chromosomal catastrophe early in development.

Mom's High-Fat Diet 'Programs' Her Baby to Be Fat
This is the first study to demonstrate that a long-term maternal high-fat diet results in the deposition, in utero, of excess body fat in the newborn.

Length of Song Linked to Size of Bird's Upper Brain
Research has proven that the capacity for learning in birds is not linked to overall brain size, but to the relative size and proportion of their specific brain regions.

WHO Child Growth Charts


Children with severe therapy-resistant asthma (STRA) may have poorer lung function and worse symptoms compared to children with moderate asthma, due to lower levels of vitamin D in their blood, according to researchers in London. Lower levels of vitamin D may cause structural changes in the airway muscles of children with STRA, making breathing more difficult. The study provides important new evidence for possible treatments for the condition.

The findings were published online ahead of the print edition of the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.

"This study clearly demonstrates that low levels of vitamin D are associated with poorer lung function, increased use of medication, worse symptoms and an increase in the mass of airway smooth muscle in children with STRA," said Atul Gupta, MRCPCH, M.D., a researcher from Royal Brompton Hospital and the National Heart and Lung Institute (NHLI) at Imperial College and King's College London. "It is therefore plausible that the link between airway smooth muscle mass and lung function in severe asthma may be partly explained by low levels of vitamin D."

While most children with asthma can be successfully treated with low doses of corticosteroids, about 5 to 10 percent of asthmatic children do not respond to standard treatment. These children have severe therapy-resistant asthma, or STRA, experience more asthma episodes and asthma-related illnesses, and require more healthcare services, than their treatment-receptive peers.

Although previous studies of children with asthma have linked increases in airway smooth muscle mass with poorer lung function and in vitro studies have established a connection between levels of vitamin D and the proliferation of airway smooth muscle, this is the first study to evaluate the relationship between vitamin D and the pathophysiology of children with STRA.

"Little is known about vitamin D status and its effect on asthma pathophysiology in these patients," Dr. Gupta noted. "For our study, we hypothesized that children with STRA would have lower levels of vitamin D than moderate asthmatics, and that lower levels of vitamin D would be associated with worse lung function and changes in the airway muscle tissue."

The researchers enrolled 86 children in the study, including 36 children with STRA, 26 with moderate asthma and 24 non-asthmatic controls, and measured the relationships between vitamin D levels and lung function, medication usage and symptom exacerbations.The researchers also examined tissue samples from the airways of the STRA group to evaluate structural changes in the airway's smooth muscle.

At the conclusion of the study the researchers found children with STRA had significantly lower levels of vitamin D, as well as greater numbers of exacerbations, increased use of asthma medications and poorer lung function compared to children with moderate asthma and non-asthmatic children. Airway muscle tissue mass was also increased in the STRA group.

"The results of this study suggest that lower levels of vitamin D in children with STRA contribute to an increase in airway smooth muscle mass, which could make breathing more difficult and cause a worsening of asthma symptoms," Dr. Gupta said.

The findings suggest new treatment strategies for children suffering from difficult-to-treat asthma, he added.

"Our results suggest that detecting vitamin D deficiency in children with STRA, and then treating that deficiency, may help prevent or reduce the structural changes that occur in the airway smooth muscle, which in turn may help reduce asthma-related symptoms and improve overall lung function," Dr. Gupta said.

Before any widespread treatment recommendations can be made, however, larger studies will need to be conducted to confirm the results, he added.

"The determination of the exact mechanism between low vitamin D and airway changes that occur in STRA will require intervention studies," Dr. Gupta said. "Hopefully, the results of this and future studies will help determine a new course of therapy that will be effective in treating these children."

.Original article: http://www.eurekalert.org/pub_releases/2011-09/ats-vdd092211.php