Title
Newly Developed Highly Bioavailable Curcumin Formulation, curcuRouge™, Reduces Neutrophil/Lymphocyte Ratio in the Elderly: A Double-Blind, Placebo-Controlled Clinical Trial
Author
Atsuhiro KISHIMOTO, Atsushi IMAIZUMI, Hiromichi WADA, Hajime YAMAKAGE, Noriko SATOH-ASAHARA, Tadashi HASHIMOTO, Koji HASEGAWA
Journal title
Journal of Nutritional Science and Vitaminology 2021 Volume 67 Issue 4 Pages 249-252
Abstract
Elevated neutrophil/lymphocyte ratio (NLR) has been reported as a sensitive marker for predicting poor prognosis in chronic inflammation-based diseases such as stroke, heart failure, cancers, and diabetes, as well as acute inflammatory diseases such as bacterial and viral infections, including COVID-19. NLR is also known to increase with age and is considered to be an aging marker. We conducted a double-blind, placebo-controlled trial in elderly volunteers to examine the effect of a newly developed, highly bioavailable curcumin formulation (curcuRouge™) on NLR. Both the white blood cell count and the neutrophil rate decreased significantly, and the lymphocyte rate increased significantly from baseline to after curcuRouge™ administration for 4 wk. curcuRouge™ significantly reduced the NLR (p=0.020). On the other hand, in the placebo group, there were no changes in white blood cell count, neutrophil ratio, lymphocyte ratio, or NLR. The present study demonstrates for the first time, in elderly volunteers, that administration of curcuRouge™ significantly reduces NLR, an indicator of prognosis in cardiovascular diseases, cancer, infectious diseases, and aging. Thus, curcuRouge™ might be expected to improve the prognosis of these diseases as well as exhibit anti-aging effects.
Study Outline
Type of Study:
Double Blind, Randomized, Placebo Controlled Study
Subjects:
Elderly volunteers (≥ 60 years old, no gender restrictions)
Groups:
curcuRouge; 90 mg curcumin-containing capsule, 2 capsules/day
Placebo; placebo capsule, 2 capsules/day
Period of Intake :
4 weeks
Number of Subjects :
20 patients/arm
Primary Outcome :
Lymphocyte type and count
At 4 week after the administration of curcuRouge, Neutrophil-Lymphocyte Ratio (NLR), a sensitive marker for predicting poor prognosis in chronic inflammation-based diseases, significantly reduced by 0.34. On the other hand, in the placebo group, there was no significant change from baseline.
