Down Syndrome & Oxygen Levels: A Physiological Overview
- Peopel with Down syndrome exhibit distinct differences in oxygen physiology and red blood cell function, according to research from the Linda Crnic institute for Down Syndrome at the...
- The Crnic Institute team analyzed blood samples and found that trisomy 21 leads to significant changes in gene expression, mirroring the effects of low oxygen availability.This includes increased...
- Joaquín Espinosa, executive director of the Crnic Institute, said hypoxia should be a central focus when considering the health of people with Down syndrome.
Uncover groundbreaking research revealing significant differences in oxygen physiology within individuals with Down syndrome. This study, published in Cell Reports, pinpoints a state of low oxygen, or hypoxia, linked to trisomy 21.Researchers analyzed blood samples to find gene expression changes that mimic low oxygen availability. The findings shed light on the overproduction of EPO and stress erythropoiesis. This work may pave the way for new treatments that target oxygen levels. Explore similarities to high-altitude conditions and potential links to inflammation. News Directory 3 is your source for these developments. The Crnic Institute team plans follow-up studies, so stay tuned.Discover what’s next for Down syndrome and oxygen levels.
Down Syndrome Study Reveals Oxygen Physiology Differences
Updated June 25, 2025
Peopel with Down syndrome exhibit distinct differences in oxygen physiology and red blood cell function, according to research from the Linda Crnic institute for Down Syndrome at the University of Colorado Anschutz Medical Campus.The findings, published in Cell Reports, highlight a state of low oxygen, or hypoxia, in individuals with trisomy 21, the chromosomal abnormality causing Down syndrome.
The Crnic Institute team analyzed blood samples and found that trisomy 21 leads to significant changes in gene expression, mirroring the effects of low oxygen availability.This includes increased production of hypoxia-inducible genes and proteins, along with factors involved in heme synthesis, which is crucial for oxygen transport in red blood cells. The study is part of the Human Trisome Project, a detailed study of Down syndrome.
Dr. Joaquín Espinosa, executive director of the Crnic Institute, said hypoxia should be a central focus when considering the health of people with Down syndrome. He emphasized the need to understand the causes and consequences of this condition to improve oxygen availability.
Dr. Micah Donovan, lead author of the study, noted similarities between the blood of people with Down syndrome and that of individuals at high altitude or those treated with erythropoietin (EPO). the research showed that people with Down syndrome overproduce EPO and undergo stress erythropoiesis, where the liver and spleen assist the bone marrow in red blood cell production.
The team also observed these phenomena in a mouse model of Down syndrome,suggesting that the changes stem from the triplication of genetic material and overexpression of specific genes.
According to dr. Kelly Sullivan, associate professor of pediatrics, the mouse model findings could help identify genes involved and lead to therapies improving oxygen physiology in Down syndrome.
Researchers also explored the connection between elevated hypoxic signaling, stress erythropoiesis, and the heightened inflammation often seen in Down syndrome. While those with stronger hypoxic signatures showed more immune system dysregulation and inflammation, reducing inflammation alone did not reverse the hypoxic state.
Dr. Matthew Galbraith, assistant research professor of pharmacology, said further data is needed to understand the causes and impacts of the hypoxic state. Potential causes include obstructive sleep apnea, cardiopulmonary malfunction, or red blood cell defects. He noted ongoing clinical trials for obstructive sleep apnea in Down syndrome could provide valuable insights.
Michelle Sie Whitten, president & CEO of Global Down Syndrome Foundation, expressed hope that the findings will lead to new treatments. She highlighted the importance of normalizing oxygen physiology to improve the lives of people with Down syndrome.
What’s next
The Crnic Institute team plans follow-up studies to identify strategies for improving oxygen physiology in individuals with Down syndrome, possibly leading to new treatments and therapies.