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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
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Home--History--Bibliography- -Pregnancy Timeline- Prescription Drugs/Pregnancy- Pregnancy Calculator - Reproductive System- -News Alerts

January 6, 2012--------News Archive

Fresh Embryos May Improve Assisted Reproduction
A new study highlights that miscarriage is less likely to occur after the transfer of fresh embryos compared to frozen-thawed embryos.

Air Pollution Link to Diabetes and Hypertension in African-American Women
The risk of diabetes increased by a significant 24 percent, and the risk of hypertension by 11 percent, with increased exposure to nitrogen oxides.

Poor Maternal Diet Can Increase Risk of Diabetes
A molecule called miR-483-3p is produced at higher levels in individuals who experienced a poor diet in their mother's wombs than those who better nourished.

January 5, 2012--------News Archive

Is Obesity in Infants “Programmed” in the Womb?
Omega 3 fatty acids eaten by pregnant women do not prevent expansive adipose tissue from developing in infants.

Progress Towards a Genital Herpes Vaccine
A vaccine under investigation protected some women against infection from one of the two types of herpes simplex the virus that causes genital herpes.

Rare Liver Disorder Kids Tolerate Mom's Graft Best
Children with a rare, life-threatening disease that is the most common cause of neonatal liver failure – biliary atresia – better tolerate liver transplants from their mothers than from their fathers, according to a UCSF-led study.

January 4, 2012--------News Archive

Simple Blood Test in First Trimester Reveals Gender
New research suggests that measuring the ratio of two enzymes in maternal blood will indicate fetal gender.

Nap-deprived Tots Missing Out On More Than Sleep
Toddlers between 2.5 and 3 years who miss only a single daily nap show more anxiety, less joy and interest and poor understanding of how to solve problems.

Women Susceptible to Infection When Ovulating
High levels of estradiol exist just prior to ovulation and decrease immune system effectiveness which can result in the growth and promotion of infection.

January 3, 2012--------News Archive

Gestational Diabetes Linked To Risk of ADHD
Maternal gestational diabetes mellitus and low socioeconomic status, appear to increase the risk of developing childhood ADHD.

Physical Activity, School Performance May Be Linked
By increasing blood and oxygen flow to the brain, and increasing endorphins which decrease stress, exercise helps improve academic performance.

January 2, 2012--------News Archive

Evolution Reveals Missing Link in DNA/Protein Shape
Despite knowing for the past 50 years that protein folds are determined by DNA sequence, fold shape complexity has limited development of disease treatments.

Bacteria Fights Fluoride in Toothpaste and in Nature
Research has uncovered the molecular tricks used by bacteria to fight the effects of fluoride, commonly used in toothpaste and mouthwash to combat tooth decay.

Gene Identified in Risk for Pancreatic Cancer
Approximately 10 percent of pancreatic cancer patients come from families with multiple cases of the disease. But finding the gene has been difficult.

WHO Child Growth Charts

What Is Your BMI?

       



A new research study published in the January 2012 edition of The FASEB Journal describes findings that could lead to a non-invasive test allowing expecting mothers to know the sex of their baby as early as the first trimester.

Researchers from South Korea discovered that various ratios of two enzymes (DYS14/GAPDH), can be extracted from a pregnant mother's blood to indicate if the baby will be a boy or a girl. A first of its kind.

"Generally, early fetal gender determination has been performed by invasive procedures such as chorionic villus sampling or amniocentesis. However, these invasive procedures still carry a one to two percent risk of miscarriage and cannot be performed until 11 weeks of gestation. Moreover, reliable determination of fetal gender using ultrasonography cannot be performed in the first trimester, because the development of external genitalia is not complete," said Hyun Mee Ryu, M.D., Ph.D., the Department of Obstetrics and Gynocology at Cheil General Hospital and Women's Healthcare Center at the KwanDong University School of Medicine in Seoul, Korea.

"Therefore, this can reduce the need for invasive procedures in pregnant women carrying an X-linked chromosomal abnormality and clarify inconclusive readings by ultrasound."

To make this discovery, Ryu and colleagues collected maternal plasma from 203 women during their first trimester of pregnancy. Multiplex real-time polymerase chain reaction was used to quantify the amount of both DYS14 and GAPDH in maternal plasma. The results were confirmed by phenotype at birth.

"Although more work must be done before such a test is widely available, this paper does show it is possible to predict the sex of a child as early as the first few weeks after conception," said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal.

"At present, parents are sometimes given the wrong information about the sex of their unborn child; this test should prove helpful in resolving any uncertainties of today's ultrasound observations."

The FASEB Journal is published by the Federation of the American Societies for Experimental Biology (FASEB). FASEB comprises 26 societies with more than 100,000 members, making it the largest coalition of biomedical research associations in the United States. FASEB enhances the ability of scientists and engineers to improve—through their research—the health, well-being and productivity of all people. FASEB's mission is to advance health and welfare by promoting progress and education in biological and biomedical sciences through service to our member societies and collaborative advocacy.

Details: Ji Hyae Lim, So Yeon Park, Shin Young Kim, Do Jin Kim, Ji Eun Choi, Min Hyoung Kim, Jun Seek Choi, Moon Young Kim, Jae Hyug Yang, and Hyun Mee Ryu. Effective detection of fetal sex using circulating fetal DNA in first-trimester maternal plasma. FASEB J. January 2012 26:250 doi:10.1096/fj.11-191429 ; http://www.fasebj.org/content/26/1/250.abstract

Original article: http://www.eurekalert.org/pub_releases/2012-01/foas-sbt010312.php