Scotland Introduces Newborn Screening for SMA
Scotland has become the first region in the United Kingdom to implement newborn screening for Spinal Muscular Atrophy (SMA), a rare genetic disorder that causes progressive muscle weakness and can severely limit life expectancy without treatment, often to just two years.
The condition recently gained public attention after singer Jesy Nelson, formerly of Little Mix, revealed that her twin daughters were diagnosed with SMA.
SMA can be detected through a heel prick test administered shortly after birth, allowing for early intervention that can significantly extend and improve the quality of life. As part of a two-year pilot program, all newborns in Scotland will now receive this screening.
Grayce Pearson’s Diagnosis and Experience
Unfortunately, this screening came too late for Grayce Pearson, a three-year-old from Milton, Glasgow, who was diagnosed with SMA as an infant. Grayce lacks a protein essential for muscle development, impacting her ability to walk, swallow, and breathe.
"Overnight she stopped kicking her legs and wasn't attempting to crawl. She wasn't trying to reach out for things,"said her father, Tony.
Early diagnosis is critical because as nerve cells deteriorate, treatment options and outcomes become more limited. Grayce’s mother, Carrie, recounted that her concerns about her six-month-old daughter’s declining movement were initially dismissed as anxiety.
"A child just doesn't stop being able to physically move her legs altogether,"she said.
Grayce was ultimately diagnosed with SMA type 2, a less severe form than type 1, at 14 months old.
"Grayce's age when she was diagnosed, she couldn't get gene therapy, which would have been a one-off and she probably would have been making her milestones,"Carrie explained.
Grayce is currently on medication that helps alleviate her symptoms.
"Even the fact that she's twisting around and reaching for stuff, she couldn't do that at all,"Carrie added.
Grayce is a joyful three-year-old who enjoys nursery, playing music, and moving around in her wheelchair—milestones her parents once feared she might never reach.
"After two years on the medication they don't tend to see progression after that but as a parent you remain optimistic to what you physically can do,"Tony said.
They were advised to take Grayce swimming regularly, as water resistance helps build muscle strength.
"I take her every two or three days,"Tony said.
"I need to be doing it to try and fight for her."
Campaigning for Newborn Screening
Together, Carrie and Tony have campaigned for SMA to be included in the conditions screened by the newborn heel prick test.
"As soon as that baby is born, if the parents find out their children have got SMA they can start gene therapy and show little to no symptoms,"Tony stated.
"For what we've had to go through, I just want other parents to be saved that scary moment of diagnosis."
Screening Program Details
On average, three to four babies are born with SMA each year in Scotland. The Scottish Newborn Screening Laboratory in Glasgow processes approximately 50,000 heel prick samples annually. Until now, the screening included tests for 10 rare but serious conditions; SMA will now be added to this list.
Sarah Smith, director of the laboratory and consultant clinical scientist for NHS Greater Glasgow and Clyde, explained the importance of early detection.
"We're testing babies that haven't shown the symptoms yet.
So they appear to be perfectly, lovely, healthy babies and the parents don't know what's going to come in the future with these diseases.
So by picking them up pre-symptomatically, we can get them onto the treatment and in a lot of cases the symptoms of those diseases will never actually present themselves."
Government Support and Pilot Program
Health Secretary Neil Gray announced that Scotland is the first UK country to begin evaluating SMA screening.
"All babies born in Scotland as of the 23 March will now receive the SMA test as part of the blood spot test that every baby in Scotland receives.
This is a pilot across Scotland to help inform the UK screening committee about its efficacy and to allow them to take a further recommendation about its wider rollout."
He emphasized the impact of early detection.
"SMA can have devastating implications for babies and their families, and this investment demonstrates our commitment to early detection through our screening programme.
By detecting SMA before symptoms develop, screening could allow earlier treatment which could be life-changing and help secure the best possible care and support for babies and families."
Charity Response and Future Outlook
Giles Lomax, chief executive of the SMA UK charity, described the initiative as a significant advancement for the SMA community.
"With all three treatments now routinely available through NHS Scotland alongside newborn screening, the future for anyone diagnosed with SMA is very different compared to their peers who were diagnosed symptomatically.
These babies will now have the opportunity to grow up without lifelong health care needs and the complexity and challenges of living with SMA."
Jesy Nelson’s Advocacy
Jesy Nelson has been a vocal advocate for universal SMA testing in the UK after her twin daughters were diagnosed with SMA type 1.
In a video shared on Instagram in January, Nelson revealed that her daughters would "probably never walk." She explained that the twins had shown limited leg movement and difficulties with feeding.
She launched a petition which gathered 100,000 signatures, qualifying it for consideration in a House of Commons debate.
Following the petition's success, Nelson posted another video expressing her gratitude.
"You have no idea how much this means to me and the SMA community.
I cannot actually put into words how grateful I am that this moment has just happened right here! And it is all thanks to you guys.
This is the first hurdle but we bloody did it and I truly believe that together we are going to make change."
