The ageing population and the increase in diabetes raise the prevalence of chronic skin ulcers (CCU). In diabetics, precursor cell mobilization decreases. In wounds, the inflammation is prolonged and oxidative stress increases. This is an unfavorable microenvironment for healing. A major risk factor in the development of CCU is nutritional deficiency. Healing needs energy and nutrients for regeneration. In diabetics the malnutrition can be more than 60%. However, although the provision of certain nutrients can improve the healing capacity, it is not a common clinical practice to nutritionally evaluate diabetic with CCU. Exosomes are extracellular vesicles that reflect the physiological state of the cells producing them. Stem cell derivatives exosomes are rich in factors, that can provide a favorable microenvironment for tissue regeneration. The aim of this project is to develop a therapeutic process to accelerate the healing of diabetic CCU, based on the correction of nutritional deficiencies, to improve the regenerative capacity, together with the application of exosomes from mesenchymal stem-cell (MSC) in the wound, creating a microenvironment that favors tissue regeneration. For this, a pilot clinical trial with diabetic patients with CCU is proposed, to evaluate the effect of personalized nutritional supplementation on healing and regenerative capacity.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
30
Those with malnutrition criteria will also receive a nutritional supplement (e.g. fortimel cubitan, advanced or extra, Nutricia) or another of similar composition, in case of intolerance to the first option. The aim will be to provide at least 50% of the recommended intakes for the main nutrients related to wound healing.
Hospital Universitario Reina Sofía de Córdoba
Córdoba, Andalusia, Spain
RECRUITINGUlcer evaluation
Change from baseline in size ulcer assessed by picture, including ruler to measure their size
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Composite measure of markers of nutritional status
Change from baseline in nutritional status assessed from blood samples
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Composite measure of haemogram
Change from baseline in haemogram assessed from blood samples
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Hemoglobin A1c (HbA1c) Test for Diabetes
Change from baseline in HbA1c (%) assessed from blood samples
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Measure of markers of nutritional status, include to thyrotropin
Change from baseline in thyrotropin (mlU/L) assessed from blood samples
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Ultrasensitive C-reactive Protein (CRP) test
Change from baseline in CRP (mg/L) assessed from blood samples
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Quantification of circulating endothelial progenitor cells (EPC)
Change from baseline in total CD34+ or CD133+ cells expressing vascular endothelial growth factor receptor 2 (VEGFR2) analyzed by flow cytometry
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Concentration of stromal cell-derived factor 1 (SDF-1) and vascular endothelial growth factor A (VEGFA)
Change from baseline in concentration of SDF-1 and VEGFA factors in serum by ELISA
Time frame: Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
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