Hematopoietic Stem Cell Dysfunction in the Elderly After Severe Injury (NCT02577731)
Hematopoietic Stem Cell Dysfunction in the Elderly After Severe Injury: Chronic Stress and Anemia Recovery Following Major Trauma
🩺 Plain-English Summary (8th-Grade Level)
Traumatic injury is a leading cause of morbidity and mortality in young adults, and remains a substantial economic and health care burden. Despite decades of promising preclinical and clinical investigations in trauma, investigators understanding of these entities is still incomplete, and few therapies have shown success. During severe trauma, bone marrow granulocyte stores are rapidly released into the peripheral circulation. This release subsequently induces the expansion and repopulation of empty or evacuated space by hematopoietic stem cells (HSCs). Although the patient experiences an early loss of bone marrow myeloid-derived cells, stem cell expansion is largely skewed towards the repopulation of the myeloid lineage/compartment. The hypothesis is that this 'emergency myelopoiesis' is critical for the survival of the severely traumatized and further, failure of the emergency myelopoietic response is associated with global immunosuppression and susceptibility to secondary infection. Also, identifying the release of myeloid derived suppressor cells (MDSCs) in the circulation of human severe trauma subjects. This process is driven by HSCs in the bone marrow of trauma subjects. Additionally, MDSCs may have a profound effect on the nutritional status of the host. The appearance of these MDSCs after trauma is associated with a loss of muscle tissue in these subjects. This muscle loss and possible increased catabolism have huge effects on long term outcomes for these subjects. It is the investigator's goal to understand the differences that occur in these in HSCs and muscle cells as opposed to non-injured and non-infected controls. This work will lead to a better understanding of the myelopoietic and catabolic response following trauma.
Who can join: Review the eligibility criteria below.
Location: UF Health Shands Hospital at the University of Florida — Gainesville, Florida
Age range: 18 Years
🧪 Interventions in This Study
- Bone marrow collection (OTHER)
- Blood collection (OTHER)
- Clinical data collection (OTHER)
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- UF Health Shands Hospital at the University of Florida — Gainesville, Florida
📞 Contact the Study Coordinator
Phone: (352) 273-5497
Email: jennifer.lanz@surgery.ufl.edu
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Trauma Injury
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- The Role of Brain-Bone Marrow-Gut Interaction Following Major Trauma — Gainesville, Florida
- Therapy Dog Visits for Patients Hospitalized With Traumatic Injuries — Boston, Massachusetts
Explore by condition: All Trauma Injury clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.