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LATEST UPDATES » Vol 22, No 08, August 2018 – Regenerative technology - Meat of the future       » Hunting for new drugs to treat mental illness       » Public outcry over vaccine scandal in China       » China slashes prices of cancer medicine       » AI beats human doctors       » Nerve cells found to control appetite in mice, and possibly humans      
BIOBOARD
New findings reveal a key cause of failed pregnancies and birth defects
This discovery could help to explain why some embryos fail to develop normally and implant into the uterus during normal pregnancies.

Scientists from A*STAR’s Institute of Molecular & Cell Biology (IMCB) have discovered a mechanism that triggers the sealing process of the embryo during its early stages of development. This embryo sealing is critical for successful implantation of the embryo into the mother’s uterus during a normal pregnancy.

These findings could be critical to explain why some embryos fail to develop normally and implant into the uterus during normal pregnancies, as well as in embryos used for assisted reproductive technologies such as in-vitro fertilisation (IVF). The findings were published in the leading scientific journal Cell on 23 March 2018.

After fertilisation, the human embryo begins its journey down the fallopian tube and into the uterus. In the early stages of development, the embryo must form a fluid cavity to ensure a normal pregnancy. The process requires sealing of the entire embryo from the exterior, and is necessary for the implantation of the embryo into the mother’s uterus. This is an important time of prenatal development because the embryo is developing the foundations for a healthy baby. If the sealing process is uncompleted, it can lead to failed pregnancies or birth defects.

Using live-imaging technologies on intact developing mouse embryos (which develop very similarly to human embryos), the IMCB research team discovered that just prior to embryo sealing, the cells of the embryo form a massive ring made of actin, a key component of the cells’ skeletons, on top of the cells’ outer cortex or surface. These rings expand over the whole surface of the embryo until they connect with each other, and then undergo a zippering process that seals the embryo and enables formation of the first embryonic cavity.

With these findings, the research team is planning to develop non-invasive imaging approaches that would be able to monitor the embryo sealing mechanism in human embryos in real time in the clinic. This aims to help doctors to predict normal versus aberrant embryonic development in natural and assisted births.

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APBN Editorial Calendar 2018
January:
Obesity / Outlook for 2018
February:
Searching for the fountain of youth
March:
Women in Science - Making a difference
April:
Digestive health in the 21st century - Trust your guts
May:
Dental health - The root to good health
June:
Cancer - Therapies and strategies for better patient outcomes
July:
Water management - Technologies for biotech and pharmaceutical industries
August:
Regenerative technology - Meat of the future
September:
Digital healthcare / 3D printing
October:
Bones / Breast cancer
November:
Liver health / Top science research nations & institutions
December:
AIDS / Breakthrough of the year/Emerging trends
Editorial calendar is subjected to changes.
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