Health · Medical Research · 1 hr ago
Study finds premature birth changes how the cerebellum develops
Premature birth changes how the cerebellum develops, according to a study of infants and human brain tissue.
The cerebellum helps control movement and also plays a role in language and thinking.
It grows rapidly from 24 to 40 weeks of pregnancy, a period that normally takes place in the womb.
Each week spent outside the womb before full term was linked to about 230 cubic millimeters less cerebellar volume, and smaller volume was associated with developmental delays in children aged 9 to 36 months.
The researchers combined scans and developmental tracking of 176 infants with cellular analysis of tissue from 83 preterm and full-term infants.
Illness, physical stress and aspects of neonatal intensive care also affected growth, suggesting that birth timing is not the only influence.
The findings could help doctors assess babies by developmental maturity and time protective care to their brain cells, though the study does not say how effective such treatments will be.
A study found that premature birth changes the cerebellum’s growth and development rather than simply slowing it until it catches up.
The cerebellum supports movement, language and cognition.
Each week spent outside the womb before full term was associated with about 230 cubic millimeters less cerebellar volume.
Between 9 and 36 months of age, smaller cerebellar volume was associated with delays in movement, language and thinking skills.
The research combined brain imaging and developmental tracking of infants with analysis of human brain tissue.
- Who
- Researchers at Children’s National Hospital and collaborators studied premature and term infants.
- What
- The study found that premature birth alters cerebellum growth and developmental trajectories.
- When
- The study’s publication date is not stated in the article text.
- Where
- The research involved Children’s National Hospital and brain tissue samples from repositories, including the NIH NeuroBioBank.
- Why
- The study aimed to explain why some premature infants face movement, language and learning challenges even without detectable brain injuries.
This story does not have two clearly opposing sides.
The cerebellum undergoes its most rapid development, expanding fivefold in size.
Smaller cerebellar volume was associated with delays in movement, language and thinking skills.
- Study participants
- 176 living infants
- Brain tissue samples
- 83 preterm and term infants
- Cerebellum growth
- Expanded fivefold between 24 and 40 weeks of pregnancy
- Volume association
- About 230 cubic millimeters less cerebellar volume per week spent outside the womb before full term
What people are saying
We could always see the developmental differences that premature children faced, but we could not see the cellular machinery driving them
We now have a biological explanation thanks to a unique combination of data from both living participants and from existing brain tissue samples.
Instead of treating the preterm brain as a black box, we can now design and time neuroprotective strategies to match the exact biological state of a baby's brain cells in the NICU, helping them transition smoothly from early adaptation to healthy circuit-building.
Assessment and treatment of preterm infants should be guided by developmental maturity rather than chronological age.