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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 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
 
November 11, 2011--------News Archive

Pre-birth Brain Growth Problems Linked to Autism
A small, preliminary study provides direct evidence for possible prenatal causes of autism.

Poor 1st, 3rd Trimester Sleep Linked to Early Births
Improving mother’s sleep habits through early intervention could reduce risk.

November 10, 2011--------News Archive

Possible New Target for Treating Kids' Liver Disease
An unexpected discovery in an often lethal pediatric liver disease may lead to a new therapy for the hard-to-treat condition.

Diagnoses of Autism Spectrum Disorders Vary Widely
Study suggests common diagnostic subcategories like asperger syndrome are flawed are of questionable value.

November 9, 2011--------News Archive

Single Protein Causes Varicose Veins
Scientists have developed a model for studying varicose veins. Their hope is that drugs can be developed to decelerate or even prevent new varicose veins.

"Switching On/Off" of Brain Genes Throughout Life
The “switching on” or expression of specific genes in the human makes each human being unique. The On/Off switching of brain cells continues throughout life.

Balancing Male and Female X Genes
Cells use 'mathematics' to equalize the loss of an X chromosome gene in males.

November 8, 2011--------News Archive

MRI Reveals Injuries in Developing Brain
New research supports the potential of high-field MRI for early identification of tiny brain injuries in the preterm infant.

Epigenetic Signatures of Autism
Analysis reveals overlap between genetic and epigenetic risk maps in autism.

November 7, 2011--------News Archive

"Cat Litter" Disease Alters Brain Chemistry
Infection by the brain parasite Toxoplasma gondii, directly affects the production of dopamine in the brain.

Two Molecules That Kill Lymphoma Cells In Mice
Two molecules have been identified that may be more effective as lymphoma cancer killers than anything currently available on the market.

Why Some Children Became Critically Ill in 2009 Flu
The largest study to date finds that kids co-infected with MRSA had an increased death risk of 8-fold. Flu vaccination is strongly urged!

WHO Child Growth Charts

Children with autism have more brain cells and heavier brains compared to typically developing children, according to researchers partly funded by the National Institutes of Health. Published in the Journal of the American Medical Association, Nov. 9, 2011, the small, preliminary study provides direct evidence for possible prenatal causes of autism.

"Earlier studies of head circumference and early brain overgrowth have pointed us in this direction, but there have been few quantitative neuroanatomical studies due to the lack of post-mortem tissue from children with autism," said Thomas R. Insel, M.D., director of the National Institute of Mental Health (NIMH), part of NIH. "These new results, along with an earlier study(1) reporting altered wiring of the prefrontal cortex, focus our attention on this critical area of the brain in autism."

The prefrontal cortex is involved in various higher order functions such as language and communication, social behavior, mood, and attention. Children who have autism tend to show deficits in such functions.

Eric Courchesne, Ph.D., of the University of San Diego School of Medicine Autism Center of Excellence, and colleagues conducted direct counts of brain cells in specific regions of the prefrontal cortex in postmortem brains of seven boys who had autism and six typically developing males, ranging in age from 2-16 years. Most participants had died in accidents, but the researchers did not base their selection on causes of death.

To assist in this task, the researchers used a computerized tissue analysis system developed by co-investigator and NIMH grantee Peter Mouton, Ph.D., of the University of South Florida, Tampa, and colleagues.

The researchers found that children with autism had 67 percent more neurons in the prefrontal cortex and heavier brains for their age compared to typically developing children. Since these neurons are produced before birth, the study's findings suggest that faulty prenatal cell birth or maintenance may be involved in the development of autism. Another possible factor that may contribute to the neuronal excess is a reduction in apoptosis, or programmed cell death, which normally occurs during the third trimester and early postnatal life.

Though small, this preliminary study examined all relevant postmortem tissue available at the time. The relative scarcity of tissue from very young children may limit future research as well, but efforts to include a larger number of samples are needed to confirm these findings and to identify patterns of age-related changes in autism.

This study was funded by Autism Speaks, Cure Autism Now, The Emch Foundation, the Simons Foundation, the Thursday Club Juniors, and the UCSD-NIH Autism Center of Excellence, which is supported by NIMH, the National Institute of Neurological Disorders and Stroke, and the Eunice Kennedy Shriver National Institute of Child Health and Human Development.

Reference

Courchesne E, Mouton PR, Calhoun ME, Semendeferi K, Ahrens-Barbeau C, Hallet MJ, Barnes CC, Pierce K. Neuron Number and Size in Prefrontal Cortex of Children with Autism. JAMA. 2011 Nov 9;306(18).

1. Zikopoulos B, Barbas H. Changes in prefrontal axons may disrupt the network in autism. J Neurosci. 2010 Nov 3;30(44):14595-609. PubMed PMID: 21048117; PubMed Central PMCID: PMC3073590.

The mission of the NIMH is to transform the understanding and treatment of mental illnesses through basic and clinical research, paving the way for prevention, recovery and cure. For more information, visit http://www.nimh.nih.gov.

About the National Institutes of Health (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visithttp://www.nih.gov.

Original article: http://www.eurekalert.org/pub_releases/2011-11/nyph-doa110911.php