Abstract:
BACKGROUND:Lavatera cretica L. was used in folk medicine as anti-inflammatory among other applications. As inflammation is many times associated with oxidative processes, the aim of the present work was to evaluate the ability of aqueous extracts obtained from different parts of L. cretica to prevent oxidation or inflammation using several methods in vitro. MATERIALS AND METHODS:The capacity of samples for preventing lipid peroxidation, scavenging free radicals, chelating metal ions, reducing power, and inhibiting lipoxygenase activity was investigated. This last assay also permits to evaluate the anti-inflammatory activity. The quantification of total phenols was performed using Folin-Chiocalteu reagent. RESULTS:The highest concentrations of total polyphenols and flavonoids were found in the leaf extract (254.62 ± 6.50 mg gallic acid equivalent/gram; dry weight). Leaf and flower extracts were the most active for scavenging 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt free radicals [Inhibition concentration (IC 50 = 2.88 ± 0.54 and IC50 = 4.37 ± 0.54 ΅g/mL, respectively)], and leaf extract was also the best for scavenging hydroxyl radicals (IC50 = 0.81 ± 0.05 μg/mL). Bract plus sepal extract possessed the best capacity for preventing lipid peroxidation when lecithin liposome was the lipid substrate (IC50 = 0.19 ± 0.03 μg/mL) and scavenging superoxide anion radicals (IC50 = 1.13 ± 0.48 μg/mL). Leaf and flower extracts were the best lipoxygenase inhibitors (IC50 = 0.013 ± 0.0034 μg/mL in both extracts). CONCLUSIONS:L. cretica extracts were able to scavenge free radicals, inhibit lipid peroxidation and lipoxygenase activity. With these attributes, this plant can have an important role in the treatment of neurodegenerative disorders.
journal_name
Pharmacogn Magjournal_title
Pharmacognosy magazineauthors
Ben-Nasr S,Aazza S,Mnif W,Miguel Mda Gdoi
10.4103/0973-1296.149743subject
Has Abstractpub_date
2015-01-01 00:00:00pages
48-54issue
41eissn
0973-1296issn
0976-4062pii
PM-11-48journal_volume
11pub_type
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