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Anti-Fatigue Effects of the Unique Polysaccharide Marker of Dendrobium officinale on BALB/c Mice
Wei, Wei1; Li, Zhi-Peng1; Zhu, Tong1; Fung, Hau-Yee1; Wong, Tin-Long1; Wen, Xin1; Ma, Dik-Lung2; Leung, Chung-Hang3; Han, Quan-Bin1
Source PublicationMOLECULES

Dendrobium officinale extract shows potent anti-fatigue effects; however, the active substance responsible for these effects remains undetermined. A glucomannan with a huge molecular size of 730 kDa, called DOP, was identified as the unique authentication marker of this expensive herb. DOP exhibited immunomodulating effects on macrophages and lymphocytes in our previous study. Clinical reports also showed that people with fatigue syndrome have a disturbed immune system. Because DOP is the unique and dominant component of D. officinale, we hypothesize that DOP may also have anti-fatigue activity. The present study aims to evaluate the anti-fatigue activity of DOP on BALB/c mice, with Rhodiola rosea extract as a positive control. DOP and Rhodiola rosea extract were orally administered at doses of 50 mg/kg and 100 mg/kg, respectively, for four weeks, and the anti-fatigue activity of DOP on BALB/c mice was evaluated using the weight-loaded swimming test. The contents of lactic dehydrogenase (LDH), creatine phosphokinase (CK), triglyceride (TG), blood urea nitrogen (BUN), superoxide dismutase (SOD), malondialdehyde (MDA), lactic acid (LD), and glutathione peroxidase (GSH-Px) in serum, glycogen of liver and gastrocnemius muscle were also determined. Their effects on variability of T cells and B cells were determined by using tetrazolium compound (MTS) method. The weight-loaded swimming exercise caused fatigue syndrome, mainly including the decreases of serum SOD/GSH-Px and gastrocnemius glycogen, as well as the increases of LDH, BUN, MDA, CK, TG, and LD in serum. All of these indicators of fatigue were inhibited to a certain extent by both DOP and Rhodiola rosea extract; however, the effects of DOP were much stronger than those of Rhodiola rosea extract. Compared to the positive control, mice dosed with DOP showed increases in endurance, body weight, and food intake. Furthermore, DOP-feeding mice significantly increased the cell variability of T lymphocytes and B lymphocytes, compared with that of mice in control group. This study indicates that the unique and dominant polysaccharide DOP of D. officinale has stronger anti-fatigue activity than Rhodiola rosea extract. As such, DOP has promising potential for pharmaceutical development into health products to reduce fatigue.

KeywordDendrobium Officinale Authentication Marker Polysaccharide Dop Anti-fatigue Activity
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Indexed BySCIE
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
WOS SubjectBiochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS IDWOS:000395473500152
PublisherMDPI AG
The Source to ArticleWOS
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Cited Times [WOS]:19   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Affiliation1.School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong, China
2.Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
3.State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
Recommended Citation
GB/T 7714
Wei, Wei,Li, Zhi-Peng,Zhu, Tong,et al. Anti-Fatigue Effects of the Unique Polysaccharide Marker of Dendrobium officinale on BALB/c Mice[J]. MOLECULES,2017,22(1).
APA Wei, Wei,Li, Zhi-Peng,Zhu, Tong,Fung, Hau-Yee,Wong, Tin-Long,Wen, Xin,Ma, Dik-Lung,Leung, Chung-Hang,&Han, Quan-Bin.(2017).Anti-Fatigue Effects of the Unique Polysaccharide Marker of Dendrobium officinale on BALB/c Mice.MOLECULES,22(1).
MLA Wei, Wei,et al."Anti-Fatigue Effects of the Unique Polysaccharide Marker of Dendrobium officinale on BALB/c Mice".MOLECULES 22.1(2017).
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