Navigation Links
Hope for Noninvasive Prenatal Test

A study published in the latest Lancet raises hopes of prenatal testing, done by analyzing a sample of mother's blood. //The technology involves separating fetal DNA and mother's DNA from the sample, and then by looking into extra copies of chromosome 21.

Currently, available tests for prenatal diagnosis of chromosomal abnormalities--eg, trisomy 21, which causes Down's syndrome--are limited by several factors. Screening tests, such as ultrasound, are non-invasive, but diagnosis requires further invasive testing. Invasive diagnostic tests, such as amniocentesis and chorionic villus sampling, are associated with risks to the pregnancy. Development of non-invasive tests that yield diagnostic results would be an important advancement in prenatal care.

Ravinder Dhallan (Ravgen Inc, Columbia, MD, USA) and colleagues took blood samples from 60 pregnant women and extracted fetal DNA from these samples. The investigators examined the samples of fetal DNA for chromosomal abnormalities by analysing an array of single nucleotide polymorphisms (SNPs, pronounced "snips")--tiny variations in the DNA sequence of individuals.

The researchers established the ratio of SNPs on different chromosomes, which enabled them to determine whether the fetus had chromosomal abnormalities. Of the 60 samples tested, the technique identified the number of chromosomes correctly in 58, including two cases of trisomy 21. Although one case of trisomy 21 was not identified, and one normal sample was incorrectly identified as being trisomy 21, the researchers stress that this is a preliminary study, and that further trials are needed to fine tune the technique.

Source-Bio-Bio Technology
SRI
'"/>




Page: 1

Related medicine news :

1. Gold Nanoparticles: Agents For Noninvasive Cancer Therapy
2. Gamma Knife Offers Noninvasive Treatment for Vascular Disorders, Brain Tumors
3. The Safety Of Prenatal Ultrasounds Questioned
4. More Importance To Be Given To Prenatal Nutrition
5. Prenatal exposure to air pollution causes chromosomal damage
6. Prenatal Alcohol Exposure Sets Cognitive Problems After 10 Years
7. Personal Growth and Success Dependent on Prenatal Health
8. Prenatal Test and Miscarriage
9. Prenatal multivitamins reduce birth defects
10. Prenatal Multivitamins to prevent risk of Brain Tumors In Kids
11. Simple Blood Test may Replace Invasive Prenatal Tests
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:9/21/2017)... ... September 21, 2017 , ... The American Addiction Treatment ... for professionals in the addiction treatment industry entitled: Special Investigations Unit (SIU) ... companies and state and federal governments are increasingly scrutinizing the addiction treatment industry ...
(Date:9/21/2017)... IL. (PRWEB) , ... September 21, 2017 , ... ... results released today of a new member survey conducted by the International ... restoration procedures performed from 2014 to 2016 rose 60 percent, with 635,189 procedures ...
(Date:9/21/2017)... ... ... Bill Howe Plumbing’s mission is to create an employee friendly company, provide ... over 37 years, they have operated with their mission at the foundation and have ... They were chosen as the Best San Diego plumber in 2016, named a Top ...
(Date:9/21/2017)... Renton, WA (PRWEB) , ... September 21, 2017 ... ... inspection technology using Microscan’s LVS 7510 at the Global GS1 Healthcare Conference 2017 ... need of the life-sciences industry for ensuring label quality and improving patient safety. ...
(Date:9/21/2017)... ... 21, 2017 , ... Preora Diagnostics Inc. , a ... has received two prestigious recognitions that acknowledge the promise of its PWS Nanoctyology ... has been named a Top 100 Finalist for the 16th annual Chicago Innovation ...
Breaking Medicine News(10 mins):
(Date:9/7/2017)... 2017 Caris Life Sciences, a leading ... promise of precision medicine, today announced results from ... its molecular profiling approach in guiding therapeutic strategies ... plus (CGP+) with Caris Molecular Intelligence ® ... molecular level, leading to more therapeutic options and ...
(Date:9/7/2017)... BOTHELL, Wash. , Sept. 7, 2017   BioLife ... developer, manufacturer and marketer of proprietary clinical grade cell and ... media ("BioLife"), announces that Mike Rice , President and ... Rodman & Renshaw 19 th ... 3:25 p.m. Eastern time (12:25 p.m. Pacific time). The conference ...
(Date:9/6/2017)... N.Y. , Sept. 6, 2017   PDI , ... announced it will host an educational session focused on ... bloodstream infection (CLABSI) prevention at the 2017 Annual Scientific ... which will take place at the Phoenix ... from Sept. 16-19, will also feature PDI,s ...
Breaking Medicine Technology: