ABSTRACT
Objective To investigate the anti-fatigue effects and the relationship between UPLC and anti-fatigue effects of different extracts of black Maca, and to provide a basis for clarifying the material basis of anti-fatigue effects of black Maca. Methods Anti- fatigue effects of eight different extracts of black Maca were evaluated through exhaustive swimming time, contents of liver glycogen, and lactic acid in serum; UPLC-Q-TOF/MS was applied to establish the fingerprints for black Maca from eight extracts; Using the anti-fatigue effects of exhaustive swimming experiment as pharmacodynamic indicators, spectra-effect relationship was analyzed by using PLSR. Results 60%, 80%, and 95% ethanol extracts of black Maca could significantly prolong the exhaustive swimming time of mice, with the effects of 95% ethanol extract of black Maca was the strongest; The treatment of 80% ethanol extract of black Maca significantly increased the level of depressed hepatic glycogen due to excessive exercise; Moreover, 95% ethanol extract of black Maca substantially decreased the serum lactic acid accumulation after loaded-swimming. A total of 23 characteristic peaks were characterized by HPLC fingerprints of eight different extracts of black Maca. N-benzylhexadecanamide, N-benzyl-5-oxo-6E,8E-octadecadienamide, 1,3-dibenzyl-2-phenyl-4,5-dimethylimidazilium, and N-octadecanamide were found to be positively related to the anti-fatigue effects with VIP > 1 in extracts of black Maca from PLSR analysis by using anti-fatigue effects of exhaustive swimming time as pharmacodynamic indicators. Conclusion 95% and 80% ethanol extracts of black Maca showed the obvious anti-fatigue function. It is clear that four components N-benzylhexadecanamide, N-benzyl-5-oxo-6E,8E-octadecadienamide, 1,3-dibenzyl-2-phenyl-4,5-dimethylimidazilium, and N-octadecanamide are the principal anti-fatigue substances in black Maca. The study has the contribution to to explore the material basis of anti-fatigue effects and provides new ideas for the omprehensive and reliable quality control of black Maca.
ABSTRACT
Objective: To study the relationship between UPLC and anti-inflammatory effects of different extracts of Salvia miltiorrhiza, and to provide a basis for clarifying the material basis of anti-inflammatory effects of S. miltiorrhiza. Methods: UPLC was used to analyze the different extraction sites of S. miltiorrhiza. The anti-inflammatory effect of anti-bronchial epithelial cell inflammation model was studied by different extraction sites. The spectral relationship was established by gravitational correlation analysis (GRA). Results: 50% grams of ethanol extract (S3), 80% ethanol eluent (S4), filtered precipitate (S5), and extracted aqueous layer extract (S9) had strong anti-inflammatory ability to inflammatory cells. The 50% ethanol eluate (S3) of the ethanol extract of Danshen was the strongest. The effect of chemical composition on the anti-inflammatory efficacy of each characteristic peak was as the following order: A9>A1>A2>A6>A15>A11>A12>A7>A10>A5>A14>A3>A18>A4>A13>A16>A8, and the top four peaks with strong contribution to anti-inflammatory effects were peaks 9, 1, 2, and 6, respectively. The results were as follows: tanshinone IIA, danshensu, salvianolic acid B, and 3’-methyl salvianolic acid B. Conclusion: The anti-inflammatory efficacy of S. miltiorrhiza is the result of combination of various components. It is clear that the four components are tanshinone IIA, danshensu, salvianolic acid B, and 3’-methyl salvianolic acid B. The efficacy of the largest contribution to the future to explore the efficacy of anti-inflammatory effects of S. miltiorrhiza provides new ideas.