By Carolyn Y. Johnson – The Washington Post –
For years, Amanda Smith and her husband were jolted awake at night by a buzz-buzz-beep — an alarm warning that her blood sugar was too high or too low. She would reach for juice boxes stored in her nightstand or fiddle with her pump to release a bolus of insulin.
Smith, a 35-year-old nurse from London, Ontario, has Type 1 diabetes, which wipes out critical islet cells within the pancreas that produce insulin. Without them, Smith relied on vials of insulin from a pharmacy and constant vigilance to stay alive. “You have to pay attention to your diabetes, or you die.”
On Valentine’s Day 2023, doctors transplanted replacement islet cells, grown in a lab from embryonic stem cells, into a blood vessel that feeds Smith’s liver. By August, she no longer needed insulin. Her new cells were churning it out.
