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Anti-arthritic and anti- inflammatory effects of extract and fractions of Malva parviflora in a mono- arthritis model induced with kaolin/carrageenan

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Abstract

Malva parviflora is used as food in the gastronomy of some regions of Mexico and, also, in Mexican traditional medicine for inflammation-related conditions like rheumatoid arthritis. The objective of this work was to evaluate its antiarthritic activity in a mice model. In ICR, female mice were tested the dichloromethane extract (MpD) and fractions MpF4 (extracted with a dichoromethane:methanol system) and MpFphy (a precipitate by acetone:methanol) by using the mono-arthritis with kaolin/carrageenan model. During the treatment, joint inflammation was measured daily, and hyperalgesia was measured using the hot plate test. The treatments diminished both joint inflammation and pain. At the end of the evaluation, the left joint and spleen were extracted for determination of pro- and anti-inflammatory cytokines. The results showed that the MpD, MpF4, and MpFphy treatments modulated the concentration of these proteins. Specifically, MpFphy at 1.0 mg/kg increased IL-4 and IL-10 and decreased IL-17, IL-1β, and TNF-α. GC-MS analysis showed that MpF4 contained a mixture of a total of nine compounds, three of them newly reported for the species. The studies confirmed the presence of five sterols in the MpFphy fraction, including stigmasterol and β-sitosterol. These results confirm the anti-rheumatoid and anti-inflammatory activities of a fraction rich in sterols from Malva parviflora.

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Abbreviations

RA:

Rheumatoid arthritis

TNF-α:

Tumoral necrosis factor

TGF-β:

Transforming growth factor

MTX:

Methotrexate

PMFS:

Phenylmethylsulphonyl fluoride

IL:

Interleukin

TPA:

12-O-Tetradecanoylphorbol-13-acetate

LK:

Left knee

MpD:

Dichloromethane extract from Malva parviflora

MpF4:

Fraction F4 from Malva parviflora

MpFphy:

Sterols fraction from Malva parviflora

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Author contribution statement

Animal experiments: M-HGB, V-VG, G-AMP; experimental design, statistical analysis: H-RM, J-FE, R-RR; manuscript preparation: H-RM, M-HGB, V-VG, J-FE; chemical analysis: ZA, G-CM; taxonomic preparation: A-FM, F-MM;

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This work was partially financially supported by FIS/IMSS/PROT/G15/1426

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Correspondence to Maribel Herrera-Ruiz.

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Martínez-Hernández, G.B., Vargas-Villa, G., Jiménez-Ferrer, E. et al. Anti-arthritic and anti- inflammatory effects of extract and fractions of Malva parviflora in a mono- arthritis model induced with kaolin/carrageenan. Naunyn-Schmiedeberg's Arch Pharmacol 393, 1281–1291 (2020). https://doi.org/10.1007/s00210-020-01851-z

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  • DOI: https://doi.org/10.1007/s00210-020-01851-z

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