scholarly journals FUNCTIONAL ANALYSIS OF AGERATUM CONYZOIDES L. (BABANDOTAN) LEAVES EXTRACT ON RHEUMATOID ARTHRITIS MODEL RAT

Author(s):  
Erna Harfiani ◽  
Riri Nurul Suci ◽  
Ade Arsianti ◽  
Anton Bahtiar ◽  
Katrin Basah

ABSTRACTObjective: Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation in joints. Ageratum conyzoides L. (Babandotan)leaves are proven to be used in inflammation therapy, yet there is a little data regarding the effects of the leaves on RA. The aim of this study is toinvestigate anti-RA activity of the ethanolic extract of A. conyzoides L. leaves (EEAL) harvested from Bogor, Indonesia, in rats.Methods: The phytochemical screening analysis and thin-layer chromatography were performed to analyze the constituents of the EEAL. This studyused white male Sprague Dawley rats which were divided into 6 groups; normal control and negative control groups, both given 0.5% carboxymethylcellulose; the positive control group, given methotrexate suspension (0.05 mg/200 g bw.); the dose variation extract is 40 mg, 80 mg, and 160 mg/200 gbody weight. All the groups were induced with 0.1 ml Complete Freund’s adjuvant on day 1, except normal control group. Some parameters will bemeasured, such as paw edema, levels of leukocyte and lymphocyte, concentrations of tumor necrosis factor-α (TNF-α), and the number of osteoclastsper mm2.Results: For 21 days the rats have given treated the EEAL in three doses, was showed the decreasing volume of paw edema, levels of blood leukocytesand lymphocytes, concentrations of TNF-α and the number of osteoclasts, compared to the rat model of RA.Conclusion: This study showed that the leaves of A. conyzoides L. harvested from Bogor, Indonesia, have activity as anti-RA in a rat model, in whichflavonoid plays a role in inhibition of chronic inflammatory processes.Keywords: Ageratum conyzoides L. leaves, Anti-rheumatoid arthritis, Complete Freund’s adjuvant, Flavonoids.

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0260423
Author(s):  
Ain’ Sabreena Mohd Noh ◽  
Tan Dai Chuan ◽  
Nurul Ajilah Mohamed Khir ◽  
Anani Aila Mat Zin ◽  
Anis Kausar Ghazali ◽  
...  

Complete Freund’s adjuvant (CFA) has been used to develop the arthritic or inflammatory condition in the animal, but there is a lack of information concerning high CFA doses on nociceptive behaviour and inflammatory parameters. This study aimed to compare the effects of different high doses of CFA in rat to closely mimic nociceptive and inflammatory parameters of rheumatoid arthritis (RA) in humans. Twenty-four male Sprague-Dawley rats were randomly divided into four groups (n = 6): Control (C), CFA-induced polyarthritic groups at 5.0 mg/mL (CFA 5.0), 7.5 mg/mL (CFA 7.5) and 10.0mg/mL (CFA 10.0). The rats’ right hindpaw was inoculated with CFA intradermally and developed into a polyarthritic state within 20 days. Nociceptive behavioural assessments, including von Frey and hot plate tests and spontaneous activities, were conducted on day 0, 7, 15 and 20. Bilateral ankle joints diameter and circumference, full blood count, joints and paw histological examinations were also conducted throughout the study period. Based on the results, CFA 5.0 and CFA 7.5 groups showed a significant increase in spontaneous activities and development of thermal hyperalgesia but no change in body weight and food intake, no development of tactile allodynia and haematological indices, and no significant morphological changes of joints histology. Meanwhile, CFA 10.0 group demonstrated significant and constant changes in all nociceptive and inflammatory parameters investigated. In conclusion, CFA at the dose of 10mg/mL has the most potential and reliable dosage to develop polyarthritis in a rat model to mimic RA condition in humans.


2021 ◽  
Vol 18 (5) ◽  
pp. 949-954
Author(s):  
Jun Zou ◽  
Kun Peng ◽  
Tao Xiong ◽  
Zhi G. Xiong ◽  
Niya Hu

Purpose: To investigate the protective effect of cimiracemate A on Freund’s adjuvant-induced rheumatoid arthritis (RA) in neonatal rats, and the underlying mechanism. Methods: Rheumatoid arthritis was induced in rat pups using Complete Freund’s adjuvant (100 µg/100 µL/body weight) which was intra-dermally injected at the tail region. After 21 days of establishment of RA, the rats were randomly assigned to four groups of ten rats each: control group, RA group, 5 mg/kg cimiracemate A group, and 10 mg/kg cimiracemate A group. Cimiracemate A was orally administered for 45 days. The effect of cimiracemate A on oxidative stress biomarkers, superoxide dismutase (SOD), malondialdehyde (MDA) and reduced glutathione (GSH) were determined using standard methods. Plasma levels of the inflammatory cytokines interleukin 1β (IL-1β) and tumor necrosis factor-α (TNF-α), and prostaglandin E2 (PGE-2) and matrix metalloproteinase-3 (MMP-3) were determined using enzyme-linked immunosorbent assay (ELISA). Western blotting was used to determine the levels of protein expressions of iNOS, NF-κB and TLR-4. Results: The level of MDA significantly increased and the level of GSH significantly decreased in RA group relative to control group (p < 0.05) following treatment with cimiracemate A. SOD activity was significantly reduced in RA group, when compared with control group (p < 0.05). However, treatment with cimiracemate A significantly and dose-dependently reversed the altered levels of MDA and GSH and SOD activity, when compared with RA group (p < 0.05). Plasma levels of IL-1β, TNF-α, PGE-2 and MMP-3 were significantly higher in RA group than in control group, but were significantly and dosedependently reduced after treatment with cimiracemate A (p < 0.05). There were significant increases in the levels of expression of iNOS, NF-κB and TLR-4 proteins in the chondrocytes of RA group, relative to control group (p < 0.05). However, treatment with cimiracemate A significantly and dose-dependently down-regulated the expressions of these proteins, when compared with RA group (p < 0.05). Conclusion: The results of this study indicate that cimiracemate A confers some degree of protection on arthritic neonatal rats via a mechanism that involves regulation of iNOS/NF-κB/TLR-4 pathway.


Author(s):  
Hassan Farooq ◽  
Mariyam Iftikhar Piracha ◽  
Muhammad Usman ◽  
Rabia Tariq ◽  
Saadia Shahzad Alam

Introduction: Cassia fistula has anti-inflammatory activity. Rheumatoid arthritis (RA) is an autoimmune disease, causing inflammation and disability of the affected joints. It is mostly treated symptomatically with NSAIDs, which themselves have a lot of adverse effects. In this study the anti-arthritic effect of Cassia fistula versus naproxen has been observed radiologically. Aims & Objectives: The present study was radiological analysis of anti-arthritic effect of Cassia fistula compared to naproxen in Complete Freund’s Adjuvant (CFA) induced rat model of rheumatoid arthritis. Place and duration of study: This study was conducted at the Animal House of University of Veterinary and Animal Sciences, Lahore for a period of three months. Material & Methods: The study was carried out on 96 male rats divided into 12 groups of 8 rats each. Single 0.2ml dose of Complete Freund’s Adjuvant (CFA) was injected in the right hind paw of each rat in all groups except Group 1 (negative control). Group 2 was positive control. The prophylactic (3-7) and therapeutic (8- 12) groups were given naproxen (25mg/kg), anthraquinone extract (250 &500mg/kg) or methanolic extract (250 & 500mg/kg) of Cassia fistula orally BD on days 1,2 &3 (first dose preceding CFA injection by 30 minutes) and on days 9,10 &11 for therapeutic groups respectively. On day 15, x-rays of right ankle joints of all groups were taken as a confirmatory investigation on the final status of the arthritis. Results: Our results showed both anthraquinone and methanolic extracts of Cassia fistula have dose dependent (500˃250mg/dl) prophylactic and therapeutic anti-arthritic potential albeit lesser than naproxen 25mg/kg, to reduce the swelling of hind paw and deformity of interphalangeal joints on radiological examination. Conclusion: The efficacy of Cassia fistula makes it a potential weaker candidate to naproxen in prevention and treatment of rheumatoid arthritis.


1995 ◽  
Vol 23 (03n04) ◽  
pp. 273-278 ◽  
Author(s):  
Hwa-Woei Chih ◽  
Chun-Ching Lin ◽  
Kung-Sheng Tang

"Ham-Hong-Chho" is a folk medicine in Taiwan, derived from the entire plants of Bidens pilosa L. var. minor (Blume) Sherff (Compositae), B. pilosa L. and B. chilensis DC. The anti-inflammatory effect of aqueous extracts of the three plants against paw edema induced by carrageenan and chronic arthritis induced by complete Freund's adjuvant were determined in rats. The results indicated that paw edema induced by carrageenan was significantly decreased by treatment with aqueous extracts (150 or 300 mg/kg) of all three plants ( p < 0.05) and that the effect of Bidens pilosa var. minor was the most potent. However, only extracts (500 mg/kg) of B. pilosa L. var. minor and B.pilosa L. significantly decreased the paw edema induced by complete Freund's adjuvant ( p < 0.05).


2006 ◽  
Vol 34 (01) ◽  
pp. 57-67 ◽  
Author(s):  
Jae-Hyo Kim ◽  
Hee-Kee Kim ◽  
Yong-Il Park ◽  
In-Churl Sohn ◽  
Dong-Ok Choi ◽  
...  

This study was to investigate the antinociceptive effects of moxibustion in a complete Freund's adjuvant (CFA)-induced arthritic rat model, and the effects of moxibustion on immunohistochemical changes at the spinal cord level. Moxibustion was applied to the ipsilateral (right) Zusanli (ST36) acupoint to the lesion side for 9 days to CFA-induced arthritic rats. The stepping force was measured as a behavioral test, c-Fos immunohistochemistry, NO production and nNOS Western blots were examined to evaluate antinociceptive effects. Moxibustion at ST36 significantly improved the stepping force in the affected hind limb in CFA-induced arthritis. Moreover, moxibustion at ST36 suppressed the production of NO and the protein expression of c-Fos and nNOS induced by arthritis. These results suggest that moxibustion at ST36 has a potent antinociceptive effect in an arthritic rat model, and modulates neuronal excitability and endogenous NO production by suppressing c-Fos and nNOS protein expression.


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