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Molecules 2013, 18(9), 10721-10732; doi:10.3390/molecules180910721

Hepatoprotective Effects of Ixora parviflora Extract against Exhaustive Exercise-Induced Oxidative Stress in Mice

1
Graduate Institute of Athletics and Coaching Science, National Taiwan Sport University, Taoyuan 33301, Taiwan
2
Center for Liberal Arts, Taipei Medical University, Taipei 11031, Taiwan
3
Department of Hospitality, Tunghai University, Taichung 40704, Taiwan
4
Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan
5
Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan
6
Department of Cosmeceutics, China Medical University, Taichung 40402, Taiwan
7
Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan 33301, Taiwan
8
Department of Sports Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 13 August 2013 / Revised: 29 August 2013 / Accepted: 30 August 2013 / Published: 3 September 2013
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [448 KB, 18 June 2014; original version 18 June 2014]   |  

Abstract

Ixora parviflora, a species of the Rubiaceae, is rich in polyphenols and flavonoids, and has been traditionally used as a folk medicine. An I. parviflora extract (IPE) has great antioxidant activity in vitro, including a scavenging effect on superoxide radicals, reducing power, and ferrous ion-chelating ability. However, whether IPE is efficacious against oxidative damage in vivo is not known. The purpose of this study was to determine the protective effects of IPE treatment on hepatic oxidative stress and antioxidant defenses after exhaustive exercise in mice. Fifty male C57BL/6 mice (6 week old) were randomly divided into five groups and designated a sedentary control with vehicle (C), and exhaustive exercise with vehicle (IPE0), low dosage (IPE10), medium dosage (IPE50) and high dosage (IPE100) of IPE at 0, 10, 50, and 100 mg/kg, respectively. After a single bout of exhaustive swimming exercise challenge, levels of blood ammonia and creatine kinase (CK), and hepatic superoxide dismutase (SOD) protein expression, thiobarbituric acid-reactive substance (TBARS), and gp91phox, p22phox, and p47phox subunits of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase expressions in the IPE0 group were significantly affected compared to those of the C group, but they were all significantly inhibited by the IPE treatments. Results of the present in vivo study in mice indicate that I. parviflora extract possesses antioxidative and hepatoprotective potential following exhaustive exercise. View Full-Text
Keywords: Ixora parviflora; oxidative stress; liver peroxidation; exhaustive exercise Ixora parviflora; oxidative stress; liver peroxidation; exhaustive exercise
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MDPI and ACS Style

Kan, N.-W.; Huang, W.-C.; Lin, W.-T.; Huang, C.-Y.; Wen, K.-C.; Chiang, H.-M.; Huang, C.-C.; Hsu, M.-C. Hepatoprotective Effects of Ixora parviflora Extract against Exhaustive Exercise-Induced Oxidative Stress in Mice. Molecules 2013, 18, 10721-10732.

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