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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 SemestersFemale Reproductive SystemFertilizationThe Appearance of SomitesFirst TrimesterSecond TrimesterThird TrimesterFetal 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 HemispheresEnd of Embryonic PeriodEnd of Embryonic PeriodFirst Thin Layer of Skin AppearsThird TrimesterDevelopmental Timeline
Click weeks 0 - 40 and follow fetal growth
Google Search artcles published since 2007
 
December 9, 2011--------News Archive

Steroid Increases Life Expectancy for Preemies
Giving antenatal corticosteroids to moms expecting preterm infants - between 22 and 25 weeks gestation - reduces infant death and long-term impairment.

A New Understanding of How Our Lungs Grow
New research challenges the medical textbooks and declares that the tiny airsacs continue to increase in number as we grow to adulthood.

Early Pregnancy Stress, Pre-Term Birth, Fewer Boys
Stress in the second and third months of pregnancy can shorten pregnancies, increase the risk of pre-term births and lead to a decline in male babies.

December 8, 2011--------News Archive

Mother's Touch Protects Child Against Drug Cravings
Attentive, nurturing mothering may help her children better resist the temptations of drug use later in life.

Flu Vaccine Protects Pregnant Mom and New-Borns
The influenza shot boosts the immune response in pregnant women and protects neuronatal babies via antibodies transferred through the placenta.

Tadpoles Made to Grow Eyes on Back and Tail
Changing the voltage in embryonic frog cell of tadpole's back causes cell to develop into a functioning eye.

December 7, 2011--------News Archive

Baby See, Baby Do?
Study shows infants take cues from trusted sources only, and ignore unreliable faces.

Bitter Taste of Broccoli Not Just About Flavor
Broccoli’s taste is not just a matter of having a cultured palate; some people actually taste a bitter compound in the vegetable that others cannot.

Game Players Advance Genetic Research
Users of the game Phylo, designed by McGill University researchers, are contributing to analysis of DNA sequences in Alzheimer’s, diabetes and cancer.

December 6, 2011--------News Archive

One Quarter of Families Begin Before 24 Years Old
National Longitudinal Survey of Youth 1997, looked at the different paths to family formation. Results looks at the experiences of young adults through age 25.

Orphans Undergo Biological Change to Their Genome
Changes can be seen in the genetic regulation of the immune system, including a number of important mechanisms in the development and function of the brain.

Child Abuse Changes the Brain
Brain imaging reveals the same pattern of brain activity in these children as seen in soldiers in war.

December 5, 2011--------News Archive

Defect in Brain May Cause Autism-Like Syndrome
Autism in Timothy Syndrome has been found to produce fewer cells connecting both halves of the brain, and overproduce dopamine and norepinephrine.

Flipping Off the Switch that Causes Aging
For the first time, Harvard scientists have partially reversed age-related degeneration in mice, resulting in new growth of the brain and testes, improved fertility, and the return of lost cognitive function.

Mapping the Neurons Created in Youth
Harvard study of brain development may shed light on brain disorders such as autism and schizophrenia.

WHO Child Growth Charts


Helium molecule bouncing off alveolar walls. Illustration: University of Leicester.


A ground-breaking international study into the ways lungs grow and develop has challenged existing medical understanding that our lungs are completely formed by the age of three.

The researchers, led by a team at the University of Leicester, put forward a theory for the first time based on research evidence that new air sacs, called alveoli, are constantly being formed. This contradicts information in most medical textbooks that explain that the tiny air sacs begin to develop before birth (around the 6th month of pregnancy) and continue to increase in number until the age of about 3 years.

Dr. Manjith Narayanan, one of the leaders of the study from the University of Leicester, said: "It was believed that there was no further increase in the number of alveoli beyond that age, and that the existing alveoli just expanded as the lungs grew bigger until final adult size was reached."

"Our study has challenged this by suggesting that new alveoli continue to be formed as the lungs grow."

The study, published online ahead of print in the American Journal of Respiratory and Critical Care Medicine, was a collaboration between researchers in the Department of Infection, Immunity and Inflammation, University of Leicester, the Department of Physics and Astronomy, University of Nottingham, and the University of Bern. It was funded by The Wellcome Trust1.

The researchers studied over 100 healthy volunteers aged between 7 and 21 years. Each volunteer had a range of breathing tests in Leicester, and was then accompanied to Nottingham for a special magnetic resonance (MR) scan, during which they breathed in hyperpolarised helium and held their breaths.

Dr. Narayanan, a Clinical Research Fellow, explains: "The helium is hyperpolarised, which means that the molecules all line up in one direction and it then behaves like a magnetised gas. Within the scanner, we can measure how the magnetism decays, and this in turn depends on the size of the air sacs – alveoli – which contain the helium. The technique is safe and not painful or uncomfortable in any way."

Senior Lecturer at Leicester Dr. Caroline Beardsmore describes the study: "We studied small children, whose lungs contain approximately one litre of air, and full-grown adults with lung volumes of around four litres. We found very little difference in the size of the alveoli across everyone we studied. If the size of the alveoli are hardly changing, this can only mean one thing – as our lungs increase in size, we must be growing new alveoli."

Professor Mike Silverman, Emeritus Professor of Child Health at Leicester, adds: "This research has important implications. If we can continue to develop new alveoli beyond early childhood, going on through adolescence, there is the potential for lung repair following injury that was never realised before. Conversely, external factors (possibly including inhaled pollution) could have a negative impact on lung development. We now have the basis for looking at many factors with the potential to impact on lung health in the future."

Manjith Narayanan, John Owers-Bradley, Caroline S. Beardsmore, Marius Mada, Iain Ball, Ruslan Garipov, Kuldeep Panesar, Claudia E. Kuehni, Ben Spycher, Sian E. Williams, Michael Silverman. Alveolarization continues during childhood and adolescence: new evidence from 3He magnetic resonance. Am. J. Respir. Crit Care Med In Press published ahead of print on October 27, 2011 as doi:10.1164/rccm.201107-1348OC.

1The Wellcome Trust is a global charitable foundation dedicated to achieving extraordinary improvements in human and animal health. It supports the brightest minds in biomedical research and the medical humanities. The Trust's breadth of support includes public engagement, education and the application of research to improve health. It is independent of both political and commercial interests.

Original article: http://www.eurekalert.org/pub_releases/2011-12/uol-uol120611.php