Details

Autor(en) / Beteiligte

• Freitas e Silva-Santana, Nayara Cristina
• Rodrigues, Hellen Christina Neves
• Pereira Martins, Tatiane Fagundes
• Braga, Clarice Carneiro
• Silva, Marina Alves Coelho
• Carlos da Cunha, Luiz
• de Souza Freitas, Ana Tereza Vaz
• Costa, Nara Aline
• Peixoto, Maria do Rosário Gondim

Titel

Turmeric supplementation with piperine is more effective than turmeric alone in attenuating oxidative stress and inflammation in hemodialysis patients: A randomized, double-blind clinical trial

Ist Teil von

• Free radical biology & medicine, 2022-11, Vol.193 (Pt 2), p.648-655

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2022

Quelle

MEDLINE

Beschreibungen/Notizen

• Turmeric has renop rotective effects that can act to reduce oxidative stress and inflammation in hemodialysis (HD) patients. Piperine has been indicated as a bioavailability enhancer of turmeric and consequently of its biological effects. However, data on the efficacy of the turmeric/piperine combination in HD patients are limited. We aimed to verify whether turmeric supplementation in combination with piperine has a superior effect to turmeric alone in increasing antioxidant capacity and reducing oxidative stress and inflammation in HD patients. This randomized, double-blind clinical trial was conducted in HD patients (age 20–75 years). Patients were supplemented with turmeric (3 g/day) or turmeric/piperine (3 g turmeric + 2 mg piperine/day) for 12 weeks. Malondialdehyde (MDA), antioxidant enzymes catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), high-sensitivity C-reactive protein (hs-CRP), and ferritin were evaluated at baseline and the end of the study. There was a reduction in the MDA and ferritin levels in the turmeric/piperine group and in the comparison between groups at the end of the study [MDA: −0.08(−0.14/0.01) nmol/mL versus −0.003(−0.10/0.26) nmol/mL, p = 0.003; ferritin: −193.80 ± 157.29 mg/mL versus 51.99 ± 293.25 mg/mL, p = 0.018]. In addition, GPx activity reduced in the turmeric group (p = 0.029). No changes were observed for CAT, GR, and hs-CRP. Turmeric plus piperine was superior to turmeric alone in decreasing MDA and ferritin levels. The use of a combination of turmeric and piperine as a dietary intervention may be beneficial for modulating the status oxidative and inflammation in HD patients. RBR-2t5zpd; Registration Date: May 2, 2018. [Display omitted] •Patients on hemodialysis have increased oxidative stress and inflammation.•Nutritional strategies can help minimize stress and inflammation.•Piperine can improve the bioavailability of curcumin present in turmeric.•Turmeric with piperine is effective in reducing malondialdehyde and ferritin.