Background: The Bergenia species are perennial herbs native to central Asia, and one of the most promising medicinal plants of the family Saxifragaceae which are popularly known as 'Pashanbheda'. The aim of this study was to evaluate antioxidant and α-amylase, α-glucosidase, lipase, tyrosinase, elastase, and cholinesterases inhibition potential of Bergenia pacumbis of Nepali origin collected from the Karnali region of Nepal. Methods: The sequential crude extracts were made in hexane, ethyl acetate, methanol, and water. Antioxidant activities were analyzed by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assay. The α-amylase, α-glucosidase, lipase, tyrosinase, elastase, acetylcholinesterase, and butyrylcholinesterase inhibition were analyzed by the 3,5-Dinitrosalicylic acid (DNSA), p-Nitrophenyl-α-Dglucopyranoside (p-NPG), 4-nitrophenyl butyrate (p-NPB), l-3,4-dihydroxyphenylalanine (L-DOPA), N-Succinyl-Ala-Alap-nitroanilide (AAAPVN), acetylthiocholine, and butyrylcholine as a respective substrate. The major metabolites were identified by high performance liquid chromatography with electron spray ionization-quadrupole time-of-flight mass spectrometry (HPLC-ESI-QTOF-MS) profiling. Results: Our results revealed the great antioxidant ability of crude extract of B. pacumbis in ethyl acetate extract against both DPPH (IC 50 = 30.14 ± 0.14 μg/mL) and ABTS (IC 50 = 17.38 ± 1.12 μg/mL). However, the crude methanol extract of B. pacumbis showed the comparable enzymes inhibitions with standard drugs; α-amylase (IC 50 = 14.03 ± 0.04 μg/mL), α-glucosidase (IC 50 = 0.29 ± 0.00 μg/mL), lipase (IC 50 = 67.26 ± 0.17 μg/mL), tyrosinase (IC 50 = 58.25 ± 1.63 μg/mL), elastase (IC 50 = 74.00 ± 3.03 μg/mL), acetylcholinesterase (IC 50 = 31.52 ± 0.58 μg/mL), and butyrylcholinesterase (IC 50 = 11.69 ± 0.14 μg/mL). On the basis of HPLC-ESI-QTOF-MS profiling of metabolites, we identified major compounds such as Bergenin, Catechin, Arbutin, Gallic acid, Protocatechuic acid, Syringic acid, Hyperoside, Afzelechin, Methyl gallate, Paashaanolactone, Astilbin, Quercetin, Kaempferol-7-O-glucoside, Diosmetin, Phloretin, and Morin in methanol extract which has reported beneficial bioactivities. Conclusion: Our study provides a plethora of scientific evidence that the crude extracts of B. pacumbis from Nepalese origin in different extracting solvents have shown significant potential on inhibiting free radicals as well as enzymes involved in digestion, skin related problems, and neurological disorders compared with the commercially available drugs.
Background: Medicinal plants and their products are gaining global popularity due to its several health benefits. However, the biological activities of the vast majority of medicinal plant species have not been explored yet. In this study, we evaluated the enzyme inhibitory potential six medicinal plant species involved in digestion, skin-related problems, and neurological problems. Methods: The 80% methanol extract of six locally available plants from the Bagmati province of Nepal were analyzed for their flavonoids content, phenolics content, antioxidant activity, and enzymes inhibitory potential. Antioxidant activity was analyzed by the DPPH assay. Alpha-amylase inhibition was carried out by the DNSA method. Lipase, tyrosinase, elastase, acetylcholinesterase, and butyrylcholinesterase inhibition were analyzed by using p-NPB, L-DOPA, AAAPVN, acetylthiocholine, and butyrylthiocholine as a respective substrate. Results: Among the analyzed plants species, Artocarpus heterophyllus possess highest α-amylase (IC50=6.28±0.01 μg/mL), lipase (IC50=475.14±3.17 μg/mL), elastase (IC50=72.75±3.41 μg/mL) and acetylcholinesterase (IC50= 68.66±1.71 μg/mL) inhibition, whereas, Actinidia deliciosa possess highest tyrosinase inhibition (IC50=139.87±0.72 μg/mL) and butyrylcholinesterase inhibition (IC50=18.32±0.44 μg/mL). Furthermore, Jasminum humile showed no inhibitory tendencies against elastase and Lygodium japonicum showed no inhibition towards lipase and elastase at given concentration range. Conclusions: Our study revealed that A. deliciosa and A. heterophyllus are the potential source of α-amylase, lipase, elastase, acetylcholinesterase, and butyrylcholinesterase inhibitors. Based on our finding, we concluded that the analyzed plant species are of great scientific interest to the pharmaceutical, cosmetics, and food industry.
The objective of this study was to profile the chemical components and biological activity analysis of crude extract of Bryophyllum pinnatum and Oxalis corniculata. Results revealed that the analyzed plant materials encompass the high amount of total phenolic and flavonoids content and have significant antioxidant activities. Furthermore, methanol extracts are the potential source of α‐amylase, α‐glucosidase, lipase, tyrosinase and elastase inhibitors. High resolution mass spectrometry revealed the presence of diverse metabolites such as quercetin 3‐O‐α‐L‐rhamnopyranoside, myricetin 3‐rhamnoside, bersaldegenin 1,3,5‐orthoacetate, bryophyllin C, syringic acid, caffeic acid, p‐coumaric acid, and quercetin in B. pinnatum and isoorientin, swertisin, apigenin 7,4′‐diglucoside, vitexin, 4‐hydroxybenzoic acid, vanillic acid, ethyl gallate, 3,3′,4′‐trihydroxy‐5,7‐dimethoxyflavone, and diosmetin‐7‐O‐β‐D‐glucopyranoside in O. corniculata. Our finding suggested that these two plant species have high medicinal importance and are potential source of inhibitors for modern pharmaceuticals, nutraceuticals and cosmetics industries.
Background This study was focused on the measurement of anticancer properties of six medicinal plants from western Nepal in three cell lines; HeLa, Hep3B, and HCT116, and anti-inflammatory properties in RAW 264.7 cell line through NO, PGE2, and TNF-α production. In addition, the phytochemical screening, total phenolic, flavonoid content, and antioxidant properties were evaluated. Results The qualitative phytochemical analysis revealed the presence of different secondary metabolite and range of total phenolic and total flavonoid content. The highest antioxidant activities were observed in Bergenia pacumbis against both DPPH (IC50 = 25.97 ± 0.19 μg/mL) and ABTS (IC50 = 14.49 ± 0.40 μg/mL). Furthermore, the highest antiproliferative effect against cervical, liver, and colon cancer cell lines were observed in Melia azedarach as IC50 values of 10.50, 5.30, and 1.57 μg/mL respectively, while the strongest anti-metastatic potential on liver cancer cell line was found in Pleurospermum benthamii. In addition, P. benthamii showed the most potent anti-inflammatory effect in RAW264.7 murine macrophage cells. Conclusion This study provided the evidence for M. azedarach and P. benthamii to have great anticancer potential and finding builds the enough scientific backgrounds in future to isolate and purify the bioactive compounds for further applications.
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