Welcome to The Visible Embryo

Home- - -History-- -Bibliography- -Pregnancy Timeline- --Prescription Drugs in Pregnancy- -- Pregnancy Calculator- --Female Reproductive System- News Alerts -Contact

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!



Home

History

Bibliography

Pregnancy Timeline

Prescription Drug Effects on Pregnancy

Pregnancy Calculator

Female Reproductive System

Contact The Visible Embryo

News Alerts Archive

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.
Content protected under a Creative Commons License.

No dirivative works may be made or used for commercial purposes.

Return To Top Of Page
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
 
August 12, 2011--------News Archive

Common Drugs Reduce Postpartum Breast Cancer
Non-steroidal anti-inflammatory drugs, including ibuprofen, have been found to reduce the severity of postpartum breast cancers in animal models.

“Good Fat” Most Prevalent in Thin Children
Study at Joslin Diabetes Center and Children's Hospital Boston finds boosting brown fat levels may combat obesity epidemic.


August 11, 2011--------News Archive

Flame Retardant in California Pregnant Women
California’s strict flammability regulations may have led to levels two times higher for California residents than for people in the rest of the country.

Paper Money Worldwide Contains Bisphenol A
Research results also found that the most likely source of the BPA in the currency is the thermal paper used in cash register receipts.


August 10, 2011--------News Archive

Clues to How Hearts, Intestines and Key Organs Form
A newly-identified protein may hold the key to keeping appetite and blood sugar in check, according to a study by York University researchers.

Human Cells Engineered To Act As Sphincter Muscles
Researchers have built the first functional anal sphincters in the laboratory, suggesting a potential future treatment for incontinence.


August 9, 2011--------News Archive

What Is Your Child's Allergy Risk?
In a first of its kind study, babies followed from birth to 4 years were found to have less allergy and asthma attacks when their moms were exposed to allergens.

Teaching Pediatricians When and How to Toilet Train
Potty training beginning at 18 months seems to be about average.


August 8, 2011--------News Archive

Why Women Suffer More Autoimmune Disease
The reason why diseases such as lupus, multiple sclerosis and rheumatoid arthritis strike women more frequently than men.

Potential New Eye Tumor Treatment Discovered
Mistakes in some microRNAs help cells lacking tumor-suppressing Rb protein to proliferate into retinoblastoma.

Amniotic Fluid Can Monitor Earlier Fetal Development
New technology help determine fetal health earlier.

WHO Child Growth Charts


Since the 1970's, in the USA padded furniture as well as clothing has contained fire retardant.

A Univercity of California San Francisco (UCSF) led pilot study has found the highest levels ever reported among pregnant women worldwide of banned chemicals used in flame retardants, a likely result, they believe, of California’s strict flammability regulations.

Polybrominated diphenyl ethers (PBDEs) were added to consumer products, such as electronics and foam in furniture beginning in the 1970s. The chemicals slow ignition and the rate at which a fire grows, according to the US Environmental Protection Agency (EPA). These chemicals may cause liver, thyroid, and neurodevelopmental toxicity, according to the EPA.

The research team found high levels of the chemicals, as well as the products that result when the flame retardants break down in the body, in 25 second-trimester pregnant women from Northern and Central California seeking care in San Francisco. While the data are preliminary, researchers also found that higher PBDE levels in the pregnant women were associated with thyroid hormone disruption.

“These important results, showing that pregnant women in this California population are exposed to high levels of certain flame retardants, is a key part of our work to understand and address multiple chemical exposures that occur during this sensitive time period,” said senior author Tracey Woodruff, PhD, director of the UCSF Program on Reproductive Health and the Environment, part of the UCSF Department of Obstetrics and Gynecology and Reproductive Sciences.

The study abstract is available online today in the journal Environmental Science and Technology.

“While our study group was small, the higher chemical exposure in pregnant women is particularly concerning and warrants further research. PBDEs can disrupt the thyroid system and have been linked to neurodevelopmental problems in children following prenatal exposure,” said Ami R. Zota, ScD, MS, lead author and a postdoctoral fellow working with Woodruff.

California banned use of pentaBDE and octaBDE, the two commercial mixtures of the PBDE flame retardants, in 2004 and is phasing out others. The European Union also enacted a ban on pentaBDE and octaBDE in Europe that took effect in 2004.

“Despite the ban, blood levels of flame retardant chemicals are two times higher for California residents than for people in the rest of the country, likely because our state has the most restrictive flammability requirements nationally,” said Zota. The state’s standards were achieved mainly by adding PBDEs to polyurethane foam-containing products used in the home and office, she added.

People today continue to be exposed to the chemicals. As products like crib mattresses, carpet padding and upholstered furniture age and break down, PBDEs are released into the air and dust. California homes have some of the world’s highest levels of PBDE chemicals in their household dust, Zota said.

In addition, research has not shown that adding these types of chemicals can produce the intended benefit of saving lives, particularly compared to other interventions such as state laws requiring fire-safe cigarettes which extinguish rapidly when left unattended, according to Zota.

The women in the study group were racially diverse and predominately lower-income. The researchers excluded participants who, at the time of the study, were smoking, using illicit drugs, taking thyroid medication or had fetal health issues.

The data also support previous findings that indicate low-income populations are likely to have higher exposures to PBDEs, according to the researchers. Researchers suspect these economic disparities may be due to the presence of poorly manufactured furniture, deteriorated PBDE-treated furniture foam and poorer housing quality in lower-income homes.

Another UCSF study recently found that the bodies of virtually all U.S. pregnant women carry multiple chemicals, including PBDEs and others banned since the 1970s. That research was the first time that the number of chemicals to which pregnant women are exposed has been counted.

The new work was supported by the Passport Foundation Science Innovation Fund, the Learning Disabilities Association of America, and the National Institute of Environmental Health Sciences.

Co-authors include June-Soo Park, Yunzhu Wang, and Myrto Petreas, all of the California Department of Toxic Substances Control in Berkeley, and R.Thomas Zoeller, of University of Massachusetts at Amherst.

UCSF is a leading university dedicated to promoting health worldwide through advanced biomedical research, graduate-level education in the life sciences and health professions, and excellence in patient care.

Original article here.