Showing posts with label amniotic fluid. Show all posts
Showing posts with label amniotic fluid. Show all posts

Tuesday, April 30, 2019

CRISPR


Imagine, curing a fatal disease before birth. In an article form Science Daily a research shows that the gene editing tool CRISPR is helping make this possible. Using an animal model, a team at the Children’s Hospital of Philadelphia has managed to out play a lethal lung disease which causes death hours after birth. The team is hoping to solve congenital diseases like cystic fibrosis. Using precisely timed in utero delivery of the CRISPR reagents into the amniotic fluid during the fetal development they were able to target changes in the lungs of mice. They introduced the gene editors four days before birth, which would be the third trimester for humans. In a second experiment they were able to reduce the severity of a lung disease known as surfactant protein C deficiency or SFTPC, which has a common disease causing mutation in the human SFTPC gene. 100% of the untreated mice died of respiratory failure within hours of birth. However, the treated mice showed a 22% survival rate. When I think of genetics the progress we’ve made is barely scratching the surface of the possibilities that lie ahead. Imagine a world where we don’t have to fear for the health of our unborn children. Through genetics, a disease free world doesn’t seem like such a far fetched idea.

Thursday, April 7, 2016

Early Fetal Abnormalities May Correct Themselves In Time


         Today in the United States, about every 4 ½ minutes a baby is born with a birth defect. This is affects 1 in every 33 babies born each year. Mothers whom have family history of genetic disorders or who are at risk of such disorders undergo chorionic villus sampling (CVS) which is carried out around 11-14 weeks of pregnancy. CVS removes and analyzes cells from the placenta, around 15-20 weeks amniocentesis can be preformed, this is when a small amount of amniotic fluid is removed and analyzed, this fluid contains cells shed by the fetus. The only downfall to getting this procedure is the 0.6% of miscarrying and once you get the results that indicate a chromosomal condition then the parents must decide whether or not to continue with the pregnancy. 

       Prof. Zernicka-Goetz’s decided to carry out this experiment with her second child at the age of 44. Zernicka-Goetz’s CVS results indicated that up to 25% of the cells in her placenta were abnormal, knowing the risk Zernicka-Goetz proceeding to continue with the pregnancy and her child was born without any disorders. Zernicka-Goetz explains that the embryo has an amazing ability to correct itself, even when half of the early stage cells are abnormal. Further research must be done in order to determine what is the exact proportion of healthy cells are required to achieve the complete repair of an embryo.

       I feel as this discovery is very beneficial to the embryonic development because it allows the opportunity for fetus to self repair itself. With the fetus being capable of fixing the abnormal cells, expecting mothers now, may not have to worry or consider abortion as a solution when there is 25% percent abnormal cells.

Click here for original source: http://www.medicalnewstoday.com/articles/308404.php