Human Pharmacokinetics of High Dose Oral Curcumin and Its Effect on Heme Oxygenase-1 Expression in Healthy Male Subjects | Zendy

Uros Klickovic | Zendy; Daniel Doberer | Zendy; Ghazaleh Gouya | Zendy; Stefan Aschauer | Zendy; Stefan Weisshaar | Zendy; Angela Storka | Zendy; Martin Bilban | Zendy; Michael Wolzt | Zendy

Open Access

Human Pharmacokinetics of High Dose Oral Curcumin and Its Effect on Heme Oxygenase-1 Expression in Healthy Male Subjects

Author(s) -

Uros Klickovic,

Daniel Doberer,

Ghazaleh Gouya,

Stefan Aschauer,

Stefan Weisshaar,

Angela Storka,

Martin Bilban,

Michael Wolzt

Publication year - 2014

Publication title -

biomed research international

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.772

H-Index - 126

eISSN - 2314-6141

pISSN - 2314-6133

DOI - 10.1155/2014/458592

Subject(s) - curcumin , heme oxygenase , peripheral blood mononuclear cell , heme , bioavailability , bilirubin , pharmacokinetics , messenger rna , pharmacology , oral administration , chemistry , medicine , endocrinology , gene , enzyme , biochemistry , in vitro

Purpose . Heme oxygenase-1 (HO-1) has been proposed to exert pharmacological benefits by its antioxidative and anti-inflammatory effects. HO-1 expression may be affected by the GT length polymorphism in the promoter region of the HO-1 gene. We investigated the inducibility of HO-1 by orally administered curcumin in healthy male subjects and its correlation with the GT length polymorphism. Methods. In an open label uncontrolled phase-1 pilot study, ten male subjects received 12 g of oral curcumin. To investigate the effects of the GT length polymorphism on the inducibility of HO-1, five subjects with homozygous short and five with homozygous long GT genotypes were studied. Plasma concentrations of curcumin, bilirubin, HO-1 mRNA, and protein expression in peripheral blood mononuclear cells (PBMCs) were analyzed over 48 hours. Results. At a detection limit of 1 µ g/mL curcumin could not be detected in plasma of any subject. Compared to baseline, HO-1 mRNA and protein levels were not induced in PBMCs at any time point up to 48 hours. There was no correlation between any of the parameters and GT length polymorphism. Conclusions . Oral curcumin administration has low bioavailability and does not induce HO-1 on mRNA or protein level in PBMCs.

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