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Synergistic effects and related bioactive mechanism of Potentilla fruticosa L. leaves combined with Ginkgo biloba extracts studied with microbial test system (MTS).
BMC Complement Altern Med. 2016 Dec 01; 16(1):495.BC

Abstract

BACKGROUND

Potentilla fruticosa, also called "Jinlaomei" and "Gesanghua", is widely used as folk herbs in traditional Tibetan medicine in China to treat inflammations, wounds, certain forms of cancer, diarrhoea, diabetes and other ailments. Previous research found P. fruticosa leaf extract (C-3) combined with Ginkgo biloba extracts (EGb) showed obvious synergistic effects in a variety of oxidation systems. The aim of the present study was to further confirm the synergy of P. fruticosa combined with EGb viewed from physiological bioavailability and explore the related bioactive mechanism behind the synergism.

METHODS

The microbial test system (MTS) was adopted to evaluate the related bioactive mechanism. The synergistic effects were evaluated by isobolographic analysis. The H2O2 production rate and antioxidant enzyme (Catalase (CAT), Peroxidase (POD), Superoxide dismutase (SOD), Glutathione peroxidase (GSH-PX)) activities were determined by the colorimetric method. Enzyme gene (CAT, SOD) expression was measured by real time-PCR.

RESULTS

The MTS antioxidant activity results showed the combination of C-3 + EGb exhibited synergistic effects especially at the ratio 5:1. Components of isorhamnetin and caffeic acid in C-3 and EGb displayed strong antioxidant activities on MTS and their combination also showed significant synergy in promoting H2O2 production. The combinations of C-3 + EGb and isorhamnetin + caffeic acid promoted CAT and SOD enzyme activities and the ratio 1:1 exhibited the strongest synergy while no obvious promotion on POD and GSH-PX enzyme activities was found. Both combinations above promoted gene expression of CAT and SOD enzymes and the ratio 1:1 exhibited the strongest synergy.

CONCLUSIONS

Antioxidant activity results in MTS further confirmed the significant synergy of C-3 combined with EGb and isorhamnetin combined with caffeic acid. The synergy of C-3 combined with EGb may be attributed to the combination of isorhamnetin + caffeic acid, which promoted CAT and SOD enzyme gene expression and further promoted the enzyme activities in E. coli. This study could further provide rational basis for optimizing the physiological bioavailability of P. fruticosa by using natural and safe antioxidants in low doses to produce new medicines and functional products.

Authors+Show Affiliations

College of Forestry, Northwest A & F University, Yangling, Shaanxi, 712100, China.College of Forestry, Northwest A & F University, Yangling, Shaanxi, 712100, China. dmwli@163.com.College of Forestry, Northwest A & F University, Yangling, Shaanxi, 712100, China.College of Forestry, Northwest A & F University, Yangling, Shaanxi, 712100, China. dengwuli@163.com.College of Forestry, Northwest A & F University, Yangling, Shaanxi, 712100, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27905920

Citation

Liu, Ze-Hua, et al. "Synergistic Effects and Related Bioactive Mechanism of Potentilla Fruticosa L. Leaves Combined With Ginkgo Biloba Extracts Studied With Microbial Test System (MTS)." BMC Complementary and Alternative Medicine, vol. 16, no. 1, 2016, p. 495.
Liu ZH, Wang DM, Fan SF, et al. Synergistic effects and related bioactive mechanism of Potentilla fruticosa L. leaves combined with Ginkgo biloba extracts studied with microbial test system (MTS). BMC Complement Altern Med. 2016;16(1):495.
Liu, Z. H., Wang, D. M., Fan, S. F., Li, D. W., & Luo, Z. W. (2016). Synergistic effects and related bioactive mechanism of Potentilla fruticosa L. leaves combined with Ginkgo biloba extracts studied with microbial test system (MTS). BMC Complementary and Alternative Medicine, 16(1), 495.
Liu ZH, et al. Synergistic Effects and Related Bioactive Mechanism of Potentilla Fruticosa L. Leaves Combined With Ginkgo Biloba Extracts Studied With Microbial Test System (MTS). BMC Complement Altern Med. 2016 Dec 1;16(1):495. PubMed PMID: 27905920.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synergistic effects and related bioactive mechanism of Potentilla fruticosa L. leaves combined with Ginkgo biloba extracts studied with microbial test system (MTS). AU - Liu,Ze-Hua, AU - Wang,Dong-Mei, AU - Fan,Su-Fang, AU - Li,Deng-Wu, AU - Luo,Zi-Wen, Y1 - 2016/12/01/ PY - 2016/05/27/received PY - 2016/11/14/accepted PY - 2016/12/2/entrez PY - 2016/12/3/pubmed PY - 2017/1/18/medline KW - Ginkgo biloba extracts KW - Microbial test system (MTS) KW - Potentilla fruticosa L. leaves KW - Real-time PCR KW - Synergistic mechanism SP - 495 EP - 495 JF - BMC complementary and alternative medicine JO - BMC Complement Altern Med VL - 16 IS - 1 N2 - BACKGROUND: Potentilla fruticosa, also called "Jinlaomei" and "Gesanghua", is widely used as folk herbs in traditional Tibetan medicine in China to treat inflammations, wounds, certain forms of cancer, diarrhoea, diabetes and other ailments. Previous research found P. fruticosa leaf extract (C-3) combined with Ginkgo biloba extracts (EGb) showed obvious synergistic effects in a variety of oxidation systems. The aim of the present study was to further confirm the synergy of P. fruticosa combined with EGb viewed from physiological bioavailability and explore the related bioactive mechanism behind the synergism. METHODS: The microbial test system (MTS) was adopted to evaluate the related bioactive mechanism. The synergistic effects were evaluated by isobolographic analysis. The H2O2 production rate and antioxidant enzyme (Catalase (CAT), Peroxidase (POD), Superoxide dismutase (SOD), Glutathione peroxidase (GSH-PX)) activities were determined by the colorimetric method. Enzyme gene (CAT, SOD) expression was measured by real time-PCR. RESULTS: The MTS antioxidant activity results showed the combination of C-3 + EGb exhibited synergistic effects especially at the ratio 5:1. Components of isorhamnetin and caffeic acid in C-3 and EGb displayed strong antioxidant activities on MTS and their combination also showed significant synergy in promoting H2O2 production. The combinations of C-3 + EGb and isorhamnetin + caffeic acid promoted CAT and SOD enzyme activities and the ratio 1:1 exhibited the strongest synergy while no obvious promotion on POD and GSH-PX enzyme activities was found. Both combinations above promoted gene expression of CAT and SOD enzymes and the ratio 1:1 exhibited the strongest synergy. CONCLUSIONS: Antioxidant activity results in MTS further confirmed the significant synergy of C-3 combined with EGb and isorhamnetin combined with caffeic acid. The synergy of C-3 combined with EGb may be attributed to the combination of isorhamnetin + caffeic acid, which promoted CAT and SOD enzyme gene expression and further promoted the enzyme activities in E. coli. This study could further provide rational basis for optimizing the physiological bioavailability of P. fruticosa by using natural and safe antioxidants in low doses to produce new medicines and functional products. SN - 1472-6882 UR - https://www.unboundmedicine.com/medline/citation/27905920/Synergistic_effects_and_related_bioactive_mechanism_of_Potentilla_fruticosa_L__leaves_combined_with_Ginkgo_biloba_extracts_studied_with_microbial_test_system__MTS__ L2 - https://bmccomplementalternmed.biomedcentral.com/articles/10.1186/s12906-016-1485-2 DB - PRIME DP - Unbound Medicine ER -