JUN 02, 2016 8:15 AM PDT

Diagnosing Rare Newborn Diseases with New Genetic Sequencing

WRITTEN BY: Kara Marker
For newborns in neonatal intensive care units with rare and complex diseases that doctors do not come across on a regular basis, production of an accurate molecular diagnosis can take months or even years. For worried parents, it can seem like a lifetime. A new study published in the Canadian Medial Association Journal offers a solution for infants and their families who are playing the waiting game, and it revolves around next-generation gene sequencing to deliver a diagnosis.
 
 
In a clinical trial with 20 newborns, each with a set of complicated medical issues, researchers tested a new genetic sequencing protocol that includes a panel of all 4183 genes known to be associated with all rare diseases known to medicine. Over half of the newborns had neurological symptoms, including chronic seizures and hypotonia, a state of “floppiness.” Medline Plus describes hypotonia like this:
“Infants with normal tone can be lifted with the adult's hands placed under the armpits. Hypotonic infants tend to slip between the hands as the infant's arms rise without resistance.”
 
For about 40 percent of the infants presenting with complex symptoms, the new sequencing technique led to a molecular diagnosis. For two infants, the molecular diagnosis made by the experimental gene sequencing technique had a substantial impact on how their doctors approached their medical treatment.
 
"This technique can be performed in a hospital-based laboratory without the need to send samples away, often out of the country," states Dr. David Dyment. "This will allow for diagnoses to be made quickly, providing answers to anxious families and potentially life-saving interventions in some cases."
 
The current method of diagnosing newborns with these symptoms involves conducting several tests, looking for specific gene mutations or abnormal expression levels. The new system that tests 4183 genes known to indicate disease greatly accelerates the diagnosis process, leading to quicker onset of an appropriate treatment plan, and ultimately better health outcomes for the infant.
 
“It can also indicate whether other family members may be at risk of the same disease and provide an accurate recurrence risk for future pregnancies,” Dyment pointed out.
 
It is important for doctors who want to successfully implement this system of genetic sequencing in the detection of rare and complex newborn diseases to communicate effectively with local neonatologists, intensive care physicians, and genetics laboratories. Successfully executing this technology now offers the “potential to transform the practice of clinical genetics,” Dyment claims.
 
 
Sources: Canadian Medical Association Journal, MedlinePlus
About the Author
  • I am a scientific journalist and enthusiast, especially in the realm of biomedicine. I am passionate about conveying the truth in scientific phenomena and subsequently improving health and public awareness. Sometimes scientific research needs a translator to effectively communicate the scientific jargon present in significant findings. I plan to be that translating communicator, and I hope to decrease the spread of misrepresented scientific phenomena! Check out my science blog: ScienceKara.com.
You May Also Like
AUG 24, 2021
Microbiology
Sugars in Breast Milk May Help Prevent Infections in Newborns
AUG 24, 2021
Sugars in Breast Milk May Help Prevent Infections in Newborns
Research has indicated that babies get many benefits from breastmilk, even if they are only fed that way for a very shor ...
SEP 01, 2021
Health & Medicine
Does Regular Cannabis Affect Brain Function? Sometimes in a Good Way
SEP 01, 2021
Does Regular Cannabis Affect Brain Function? Sometimes in a Good Way
With cannabis now legal in many parts of the world, an increasing number of people now count as regular users of the dru ...
SEP 07, 2021
Health & Medicine
Think you can pay back your sleep debt this weekend? Think again.
SEP 07, 2021
Think you can pay back your sleep debt this weekend? Think again.
Researchers find that even one night of sleep loss results in impaired functioning and well being.
SEP 13, 2021
Health & Medicine
How Farming Shaped the Immune System
SEP 13, 2021
How Farming Shaped the Immune System
In today's society, a rural upbringing is associated with a healthier immune system less prone to allergies and auto ...
SEP 16, 2021
Cannabis Sciences
Cannabis Use and Exercise- A Dire Need for High-quality Evidence
SEP 16, 2021
Cannabis Use and Exercise- A Dire Need for High-quality Evidence
It should come as no surprise that exercise is good for our health. Regular exercise reduces the risks of serious chroni ...
SEP 17, 2021
Earth & The Environment
City Solutions - Green Rooftops in Urban Spaces
SEP 17, 2021
City Solutions - Green Rooftops in Urban Spaces
Most of the world’s population lives in cities. Population growth is expected to continue to be focused in urban a ...
Loading Comments...