Background and Aims: Prangos Lindl. (Apiaceae) are abundant in coumarins. Previously, along with n-hexane(HEX), chloroform(CHCl3), and methanol(MeOH) extracts, 8 molecules named osthol(1), isoimperatorin(2), oxypeucedanin(3), 7-methoxy-isoarnottinin-4'-O-β-ᴅ-glucopyranoside(4), 7-methoxy-isoarnottinin-4'-O-rutinoside(5), oxypeucedanin hydrate-3'-O-β-ᴅ-glucopyranoside(6), 1-methylethyl-6-O-D-apio-β-ᴅ-furanosyl-β-ᴅ-glucopyranoside(7), and cnidioside A(8) were obtained from the roots of endemic Prangos heyniae H. Duman & M. F. Watson. 4 and 5 were reported as novel compounds. Coumarins are known for their neuroprotective properties. Tyrosinase and cholinesterase enzymes play a key role in the course of neurodegenerative diseases such as Parkinson’s and Alzheimer’s disease(AD), respectively. Therefore, we aimed to evaluate the antityrosinase and anticholinesterase effects of the extracts and compounds 1-8 from Prangos heyniae roots.
Methods: Tyrosinase and acetylcholinesterase-butyrylcholinesterase(AChE-BChE) inhibitory activities of the samples were evaluated spectrophotometrically. The screening of the samples was carried on at 1000 μg/mL. Results of triplicate analyses of the samples were given as IC50 values obtained through linear regression analysis. Kojic acid and galantamine were used as positive controls for antityrosinase and anticholinesterase experiments, respectively.
Results: Only MeOH extract showed antityrosinase activity with an IC50 value of 543.37±7.45 μg/mL. CHCl3 extract exhibited both AChE and BChE inhibitory activities with IC50 values of 273.92 ± 32.07 and 38.68±2.56 μg/mL, respectively. Among tested compounds, 6 showed a weak BChE-specific inhibitory activity (IC50= 91.93±3.86μg/mL) and managed to possess 40 times inferior activity than galantamine(IC50= 2.25 ± 0.05μg/mL).
Conclusion: The CHCl3 extract displayed a good BChE inhibitory activity. These findings suggested that Prangos heyniae
could be a valuable natural source to develop novel BChE inhibitors with further studies against AD.
Prangos heyniae coumarin anticholinesterase activity antityrosinase activity oxypeucedanin hydrate-3
TÜBİTAK
219S127
This study was supported by TUBITAK (The Scientific and Technological Research Council of Turkey) under Grant number: 219-S-127.
219S127
Primary Language | English |
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Subjects | Pharmacology and Pharmaceutical Sciences |
Journal Section | Original Article |
Authors | |
Project Number | 219S127 |
Publication Date | April 28, 2023 |
Submission Date | March 13, 2022 |
Published in Issue | Year 2023 Volume: 53 Issue: 1 |