Anti-arthritic Potential Research Articles

Leaves of Stereospermum suaveolens DC Exhibit Anti-inflammatory and Anti-arthritic Potential Action in Experimental Animals

Aim: The experimental investigation of current research work was to identify traditional rich claim of Stereospermum suaveolens DC leaves for anti-inflammatory and anti-arthritic potential action in animals.
 Study design: Ethyl acetate fraction of Stereospermum suaveolens DC (Bignoniaceae) methanolic extract of leaves evaluated at 125mg/kg, 250mg/kg and 500mg/kg (p.o.) doses for anti-inflammatory and anti-arthritic activity.
 Methodology: Ethyl acetate fraction of Stereospermum suaveolens DC (Bignoniaceae) methanolic extract of leaves was evaluated for phytochemical investigation for total flavonoid content using UV spectroscopy and TLC study. Carrageenan induced rat paw edema (Acute method) and Freund’s complete adjuvant (FCA) induced chronic arthritis in wistar rats were used as an animal models to claim Stereospermum suaveolens DC leaves for anti-inflammatory and anti-arthritic potential. The rat paw volume and percentage inhibition of the paw edema were evaluated for anti-inflammatory activity. The assessments of arthritis in rats were measured by haematological values and radiological examinations.
 Result: Ethyl acetate fraction of Stereospermum suaveolens DC (Bignoniaceae) methanolic extract of leaves showed presence of total flavonoids and saponins. The significant inhibition in paw volume and edema (p < .01) obtained at 250mg/kg and 500mg/kg oral dose. These obtained results were established confirmation outcome for presence of rich flavonoid contents in Stereospermum suaveolens DC leaves and provides valuable source of bioactive phytocomponents. 
 Conclusion: Ethyl acetate fraction of Stereospermum suaveolens DC (Bignoniaceae) methanolic extract of leaves showed significant inhibition of inflammatory reaction as compared to standard drug indomethacin Sterospermum Suaveolens DC leaves were showed potential therapeutic role in treatment of inflammation and arthritis cases.

Investigation of Fixed Oil of Gallus gallus domesticus for Various Pharmacological Activities

Medicinal oils, including fixed and essential oils, are one of the most ancient forms of medicines. Animals and plants are the major source of fixed oils which have been reported to treat various ailments, such as urinary, nervous, respiratory, cardiovascular, musculoskeletal disorders, bacterial, fungal and protozoal infections etc. Medicinal oils, especially of animal origin are; however, ignored and rarely investigated in contemporary modern medical research. This study was aimed to investigate the various pharmacological activities of fixed oil of Gallus gallus domesticus (Egg oil, Fo.Gg). Fo.Gg was investigated for its wound healing potential by using excisional wound model, anti-arthritic activity by following turpentine oil-induced acute arthritis model, antipyretic activity by yeast-induced pyrexia, anxiolytic activity by adopting hole board, light/dark exploration and elevated plus maze models, antidepressant activity by forced swim test and tail suspension model and antiamnesic activity by Y-maze model. Fo.Gg showed significant healing potential as evident from increase in percent wound contraction and decrease in period of epithelialization and also the significant decrease in paw and ankle joint diameter in anti-arthritic activity. It showed dose-dependent (i.e. 10, 30 and 50%) decrease in rectal temperature when compared to the control group, also showed significant anxiolytic, antidepressant and anti-amnesic activities. These pharmacological activities may be attributed to the antioxidant as well as radical scavenging potential of oil components especially polyphenols, oleic acid and linoleic acid. Thus, the results of the study conclude that egg oil possesses wound healing, anti-arthritic, antipyretic, anxiolytic, antidepressant and anti-amnesic potential. The study provides scientific ground for the folkloric use of the oil in traditional system of medicine; however, further studies are required to explore the possible mechanism(s) of action.

Investigation of Fixed Oil of Gallus gallus domesticus for Various Pharmacological Activities

Medicinal oils, including fixed and essential oils, are one of the most ancient forms of medicines. Animals and plants are the major source of fixed oils which have been reported to treat various ailments, such as urinary, nervous, respiratory, cardiovascular, musculoskeletal disorders, bacterial, fungal and protozoal infections etc. Medicinal oils, especially of animal origin are; however, ignored and rarely investigated in contemporary modern medical research. This study was aimed to investigate the various pharmacological activities of fixed oil of Gallus gallus domesticus (Egg oil, Fo.Gg). Fo.Gg was investigated for its wound healing potential by using excisional wound model, anti-arthritic activity by following turpentine oil-induced acute arthritis model, antipyretic activity by yeast-induced pyrexia, anxiolytic activity by adopting hole board, light/dark exploration and elevated plus maze models, antidepressant activity by forced swim test and tail suspension model and antiamnesic activity by Y-maze model. Fo.Gg showed significant healing potential as evident from increase in percent wound contraction and decrease in period of epithelialization and also the significant decrease in paw and ankle joint diameter in anti-arthritic activity. It showed dose-dependent (i.e. 10, 30 and 50%) decrease in rectal temperature when compared to the control group, also showed significant anxiolytic, antidepressant and anti-amnesic activities. These pharmacological activities may be attributed to the antioxidant as well as radical scavenging potential of oil components especially polyphenols, oleic acid and linoleic acid. Thus, the results of the study conclude that egg oil possesses wound healing, anti-arthritic, antipyretic, anxiolytic, antidepressant and anti-amnesic potential. The study provides scientific ground for the folkloric use of the oil in traditional system of medicine; however, further studies are required to explore the possible mechanism(s) of action.

Bioactive fractions and compound of Ardisia crispa roots exhibit anti-arthritic properties mediated via angiogenesis inhibition in vitro

BackgroundArdisia crispa (Thunb.) A.DC (Primulaceae), is a medicinal herb traditionally used by Asian people as remedies to cure inflammatory related diseases, including rheumatism. The plant roots possess various pharmacological activities including antipyretic, anti-inflammation and antitumor. Previous phytochemical studies of the plant roots have identified long chain alkyl-1,4-benzoquinones as major constituents, together with other phytochemicals. Hexane fraction of the plant roots (ACRH), was previously reported with anti-angiogenic and anti-arthritic properties, while its effect on their anti-arthritic in vitro, is yet unrevealed. Considering the significance of angiogenesis inhibition in developing new anti-arthritic agent, thus we investigated the anti-arthritic potential of Ardisia crispa roots by suppressing angiogenesis, in vitro.MethodsArdisia crispa roots hexane extract (ACRH) was prepared from the plant roots using absolute n-hexane. ACRH was fractionated into quinone-rich fraction (QRF) and further isolated to yield benzoquinonoid compound (BQ), respectively. In vitro experiments using VEGF-induced human umbilical vein endothelial cells (HUVECs) and IL-1β-induced human fibroblast-like synoviocytes for rheumatoid arthritis (HFLS-RA) were performed to evaluate the effects of these samples on VEGF-induced HUVECs proliferation and tube formation, and towards IL-1β-induced HFLS-RA proliferation, invasion, and apoptosis, respectively. Therapeutic concentrations (0.05, 0.5, and 5 μg/mL) tested in this study were predetermined based on the IC50 values obtained from the MTT assay.ResultsACRH, QRF, and BQ exerted concentration-independent antiproliferative effects on VEGF-induced HUVECs and IL-1β-induced HFLS-RA, with IC50 values at 1.09 ± 0.18, 3.85 ± 0.26, and 1.34 ± 0.16 μg/mL in HUVECs; and 3.60 ± 1.38, 4.47 ± 0.34, and 1.09 ± 0.09 μg/mL in HFLS-RA, respectively. Anti-angiogenic properties of these samples were verified via significant inhibition on VEGF-induced HUVECs tube formation, in a concentration-independent manner. The invasiveness of IL-1β-induced HFLS-RA was also significantly inhibited in a concentration-independent manner by all samples. ACRH and BQ, but not QRF, significantly enhanced the apoptosis of IL-1β-induced HFLS-RA elicited at their highest concentration (5 μg/mL) (P < 0.05).ConclusionsThese findings highlight the bioactive fractions and compound from Ardisia crispa roots as potential anti-arthritic agents by inhibiting both HUVECs and HFLS-RA’s cellular functions in vitro, possibly mediated via their anti-angiogenic effects.

Anti-arthritic potentials of aqueous and methanolic leaf extracts of Ardisia solanacea on complete Freund’s adjuvant induced rheumatoid arthritis in rats

Anti-arthritic potentials of aqueous and methanolic leaf extracts of Ardisia solanacea on complete Freund’s adjuvant induced rheumatoid arthritis in rats

Phytochemical and In-Vivo Anti-Arthritic Significance of Aloe thraskii Baker in Combined Therapy with Methotrexate in Adjuvant-Induced Arthritis in Rats.

Unlike other widely known Aloe species used for treatment of rheumatoid arthritis, this species suffers from a lack of sufficient studies on its biological and chemical characters. This is what drove us to perform this work to evaluate the in vivo anti-arthritic potential of its leaf ethanolic extract. The in vivo anti-arthritic activity of the leaf ethanolic extract at 100 and 200 mg/kg/day b.wt. was evaluated alone and in combination with methotrexate (MTX) using complete Freund’s adjuvant. Serum levels of rheumatoid factor, anti-cyclic citrullinated peptide (anti-CCP), cytokines pro-inflammatory marker, inflammatory mediator serum levels, and oxidative stress mediators were analyzed, in addition to liver function. Orientin, isoorientin, β-sitosterol, its palmitate and its glucoside were isolated. The combined therapy of MTX and the leaf ethanolic extract (especially at 200 mg/kg b.wt.) group showed better activity compared to MTX alone. Moreover, the combined therapy provided additional benefits in lowering the liver toxicity by comparison to MTX alone. We concluded that a synergetic combination of the leaf ethanolic extract and MTX is beneficial in the management of rheumatoid arthritis with fewer side effects on liver function, as well as the possibility of the leaf extract to stand alone as an effective natural anti-arthritic agent.

Investigation of anti-inflammatory and anti-arthritic potentials of Terminalia catappa bark using in vitro assays and carrageenan-induced inflammation, complete Freund's adjuvant induced arthritis model in rats

Terminalia catappa Linn (T. catappa) belongs to the family Combretaceae, locally known as Bengal Almond. The plant is known to have many phytochemicals such as carbohydrates, phytosterols, tannins, polyphenols, flavonoids, and saponins. It is widely used in the treatment of various diseases such as dermatitis, leprosy, and scabies and internally for colic, headache and hepatitis and also, the plant possesses anticancer, antioxidant, antidiabetic, hepatoprotective and extracts have been shown to modify reproductive behavior in rats. The main objective of this study is to assess the pharmacological potentials of T. catappa bark in the therapeutic areas of inflammation and arthritis. T. catappa bark alcoholic extract (TCE) and water extract (TCW) were prepared and evaluated for its possible anti-inflammatory activity by in vitro protein denaturation assays and membrane stabilization assay. Further, the anti-inflammatory and anti-arthritic activity of bark extracts were evaluated by in vivo models such as carrageenan-induced paw edema, air-pouch model and Complete Freund's adjuvant (CFA) induced arthritis model in rats. Total phenolic content (TPC) was found to be 287 and 175 mg/g for TCE and TCW. Total flavonoid content (TFC) was found to be 10.2 and 61.7 mg/Kg for TCE and TCW. The concentration required for the 50 % inhibition of the protein denaturation (IC 50) was found to be lower for TCE (36.2 µg/mL) in egg albumin denaturation assay, whereas in the membrane stabilization assay method TCW exhibited a lower IC50 value in comparison with diclofenac. Both the extracts showed activity in the in vitro models of inflammation and were also found to be effective in reducing the paw edema in the carrageenan-induced inflammation model and inhibition of cellular infiltration and Myeloperoxidase activity in air pouch fluid, suggesting its anti-inflammatory activity. In CFA-induced arthritis model, the extracts exhibited anti-arthritic potential by improving the altered blood parameters, arthritic scores, radio-graphical, and histopathological changes. The results of the study suggested that the bark of T. catappa possessed anti-inflammatory and anti-arthritic activities.

Quinone-rich fraction of Ardisia crispa (Thunb.) A. DC roots alters angiogenic cascade in collagen-induced arthritis.

Rheumatoid arthritis (RA) is a chronic joint disorder, of which, excessive angiogenesis is the well-established factor contributing to synovitis and joint destruction. Ardisia crispa (Primulaceae) is a medicinal herb with evidenced anti-angiogenic properties, attributed to 2-methoxy-6-undecyl-1,4-benzoquinone (BQ) found in its roots. However, it is still unclear how BQ is able to inhibit angiogenesis in RA. Hence, we investigated the anti-arthritic potential of quinone-rich fraction (QRF) separated from Ardisia crispa roots hexane extract (ACRH) by targeting angiogenesis on collagen-induced arthritis (CIA) in rats. The QRF was priorly identified by quantifying the BQ content in the fraction using GC-MS. Male Sprague-Dawley rats (n = 6) were initially immunised with type II collagen (150µg) subcutaneously at the base of the tail on day 0. QRF (3, 10, and 30mg/kg/day) and celecoxib (5mg/kg/day) were orally administered for 13 consecutive days starting from day 14 post-induction, except for the vehicle and arthritic controls. QRF at all dosages moderately ameliorated the arthritic scores, ankle swelling, and hind paw oedema with no significant (p > 0.05) modulation on the bodyweights and organ weights (i.e., liver, kidney, and spleen). Treatment with QRF at 3, 10, and 30mg/kg, significantly (p < 0.05) attenuated VEGF-A, PI3K, AKT, NF-κB, p38, STAT3, and STAT5 proteins and markedly restored the increased synovial microvessel densities (MVD) to the normal level in arthritic rats in a dose-independent manner. In conclusion, QRF conferred the anti-arthritic effect via angiogenesis inhibition in vivo, credited to the BQ content and synergism, at least in part, by other phytoconstituents.

Prophylactic efficacy of bioactive compounds identified from GC-MS analysis of Balarista formulation on adjuvant induced arthritic rats by inhibiting COX-2 inhibitor

Balarista, a classical ayurvedic formulation, is traditionally claimed for the treatment of rheumatoid arthritis (RA). The drawback behind this fermented product remains lack of its proper documentation and validation. In the present investigation, therefore, an in-house Balarista (IBF) formulation was prepared by using standard raw materials as mentioned in API (Ayurvedic Pharmacopoeia of India). As the preclinical scientific data regarding its molecular mechanism of action were not evaluated, so the present work was undertaken to investigate its anti-arthritic potential using Complete Freund's adjuvant (CFA) induced arthritic rat model and was compared with the marketed (AVS, BD, DB, RN) formulations. Rats were immunized by injecting CFA of 0.1 ml into the sub-plantar surface of right posterior paw. Animals were treated with formulation (2.31 ml/kg) and indomethacin (1 mg/kg) for 28 days and were sacrificed on 29th day. The hematological and biochemical parameters were studied. The histology and x-ray analysis were performed on proximal interphalangeal joints of the experimental rats. The molecular docking of the constituents identified from GC-MS analysis of IBF formulation was carried out with COX-2 receptor to find out the interaction using celecoxib as standard. The quantification of vasicine and total withanolides was performed by HPLC analysis for their standardization. A significant decrease in paw diameter, arthritic index and histological score was noticed in formulation treated groups. The decrease in body weight and alteration in hematological and biochemical parameters were also significantly checked by the IBF and marketed formulation in contrast to CFA treated groups. Remarkable reduction of TNF-α, IL-1β, and IL-6 were noticed in all the formulation treated rats. The histological study revealed decrease in synovial hyperplasia, pannus formation, and cartilage and bone erosion. The X-ray analysis showed decrease in soft tissue swelling, bone resorption and osteophyte formation upon the treatment with formulations. Based on docking score the components, 8-Azaspiro[4.5]decane-7,9-dione (-7.5); (3aS,7aR)-5,6,7a-trimethyl-4,7-dihydro-3aH-2-benzofuran-1,3-dione (-7.5); 2,6-Ditert-butylphenol (-7.2) exhibited significant binding affinity. The prophylactic activity of the formulation could be due to the synergistic effects produced by the phyto-constituents identified by GC-MS analysis. Moreover, the anti-arthritic activity of the IBF was attributed by the predominance of withaferin A.

Anti-Arthritic and Anti-Inflammatory Potential of Spondias mangifera Extract Fractions: An In Silico, In Vitro and In Vivo Approach.

The fruits of Spondias mangifera (S. mangifera) have traditionally been used for the management of rheumatism in the northeast region of India. The present study explores the probable anti-arthritis and anti-inflammatory potential of S. mangifera fruit extract’s ethanolic fraction (EtoH-F). To support this study, we first approached the parameters in silico by means of the active constituents of the plant (beta amyrin, beta sitosterol, oleonolic acid and co-crystallised ligands, i.e., SPD-304) via molecular docking on COX-1, COX-2 and TNF-α. Thereafter, the absorption, distribution, metabolism, excretion and toxicity properties were also determined, and finally experimental activity was performed in vitro and in vivo. The in vitro activities of the plant extract fractions were evaluated by means of parameters like 1,1-Diphenyl-2- picrylhydrazyl (DPPH), free radical-reducing potential, albumin denaturation, and protease inhibitory activity. The in vivo activity was evaluated using parameters like COX, TNF-α and IL-6 inhibition assay and arthritis score in Freund Adjuvant (CFA) models at a dose of 400 mg/kg b.w. per day of different fractions (hexane, chloroform, alcoholic). The molecular docking assay was performed on COX-1, COX-2 and TNF-α. The results of in vitro studies showed concentration-dependent reduction in albumin denaturation, protease inhibitors and scavenging activity at 500 µg/mL. Administration of the S. mangifera alcoholic fraction at the abovementioned dose resulted in a significant reduction (p < 0.01) in arthritis score, paw diameters, TNF-α, IL-6 as compared to diseased animals. The docking results showed that residues show a critical binding affinity with TNF-α and act as the TNF-α antagonist. The alcoholic fraction of S. mangifera extract possesses beneficial effects on rheumatoid arthritis as well as anti-inflammatory potential, and can further can be used as a possible agent for novel target-based therapies for the management of arthritis.

Anti-Inflammatory and Anti-Arthritic Potential of Standardized Extract of Clerodendrum serratum (L.) Moon.

Aims: Scientific biological evaluation of standardized extracts is becoming one of the central needs for the globalization of customary medication in current times. And to validate the presence of active constituents in crude medicinal extracts, analytical techniques like HPLC and HPTLC are the most suitable authentication systems. In the current study we aimed to standardize and evaluate Clerodendrum serratum (L.) Moon (Verbenaceae). For its unique anti-inflammatory and anti-arthritic properties. Evaluation and analysis of the plant, therefore, offers a new platform for the development of the herbal drug and could prove to be a safe and cost effective treatment for arthritis management. Methods: The aqueous extract of C. serratum, a common plant in the Southeastern Asian region, was used for phytochemical investigation and standardization by HPTLC and HPLC. The standardized HPLC method was further validated by using ICH guidelines. The standardized extract was investigated for anti-inflammatory and anti-arthritic activity. Complete Freund’s adjuvant (CFA) model was performed to evaluate the activity. Paw diameter, joint diameter, arthritic score, and body weight was accepted as a parameter for the evaluation of biological activity. Results: HPTLC method revealed the presence of ursolic acid with an Rf value of 0.38 and the amount quantified was 0.03% w/w. The presence of the bioactive phytochemical was further analyzed and confirmed by HPLC for which the validation was done successfully in accordance with ICH guidelines. The assay content for ursolic acid was found to be 0.059% with relative standard deviation (RSD) <2.5% for specificity and precision with spike recovery between 95–110%. The anti-arthritic activity of aqueous extract exhibited COX-2 and TNF-α inhibition as observed in various parameters like paw edema, arthritic index, and joint diameter. Plant extract showed reclamation of arthritis in regard to body weight, arthritic score, paw edema, and joint diameter. The extract showed significant results for TNF-α and COX-2(p < 0.0001). The plant extract also exhibited in-vitro anti-inflammatory activity. Conclusion: The current study established the scientific basis of ethnomedicinal use of the plant for anti-inflammatory purposes and the management of arthritis and can also be used for quality control purposes.

Anti-rheumatic activity of pseudoephedrine (a substituted phenethylamine) in complete Freund's adjuvant-induced arthritic rats by down regulating IL-1β, IL-6 and TNF-α as well as upregulating IL-4 and IL-10.

Pseudoephedrine (substituted phenethylamine) is well known as psychotic and bronchodilator. Numerous studies on phenethylamine derivatives indicated that these agents have the potential to abolish inflammatory responses in the non-biological and biological systems. These facts provided the basis to conduct a study on pseudoephedrine to explore its therapeutics in Complete Freund's Adjuvant (CFA)-induced arthritis. Furthermore, existing treatment approaches for RA associated with limited effect on chronic immunological models. Real-time polymerase chain reaction (q-PCR) was performed to execute the expression of pro and anti-inflammatory cytokines in treated and non-treated arthritic rats. These findings were further co investigate by histological observations. The paw volume, paw diameter, weight variations and arthritic score were determined at specific days throughout the experiment of 28days. Pseudoephedrine at all doses significantly (p < 0.001) suppressed the expression of PGE2, TNF-α, IL-1β and IL-6. Moreover, pseudoephedrine (20 and 40mg/kg) caused significant augmentation of IL-4 and IL-10. Similarly, the drug expressed a significant anti-arthritic effect by reducing the paw volume, paw diameter and arthritic score. Similarly, it also reverts the reduction in body weight of arthritic rats at all above-mentioned doses. These findings supported the anti-arthritic potential of pseudoephedrine and recommended it for clinical trials.

Protective Role of Tridax Procumbens against Adjuvant Induced Arthritis in a Murine Model

Rheumatoid arthritis is the inflammatory disease affecting the joints and imposes significant burden among the individuals. Oxidative stress is one of the major mechanisms involved in the progression of arthritis. It is postulated that inflammation and secretion of various inflammatory cytokines also plays pivotal role in rheumatoid arthritis. Tridax procumbens (Asteraceae) is one of the potent herb and possess various biological actions. So, the present study was carried out to evaluate the protective role of Tridax procumbens in a murine model of complete Freund’s adjuvant (CFA) provoked arthritis. The rats were made arthritic by injecting 0.1ml CFA into rat hind paw by intradermal route. Tridax procumbens methanolic extract (200 and 400 mg/kg, b.wt) were administered orally daily for 28 days after induction of arthritis. The anti arthritic effect was evaluated by, alterations in paw volume and body weight, changes in hematological parameters, increased lipid peroxidation and decreased antioxidants (SOD, CAT, GPx and GSH) due to arthritis. Treatment with Tridax procumbens significantly reduced the paw volume and increased the body weight in arthritic rats. Further, treatment with Tridax procumbens significantly increased the RBC and hemoglobin and decreased the WBC and ESR level as compared to the arthritic rats. The antioxidant levels were significantly increased in arthritic rats after treatment with extracts. Thus the anti-arthritic potential of Tridax procumbens might be mediated through antioxidant and anti-inflammatory effect of the extracts

&lt;p&gt;&lt;strong&gt;Protective effects of phytocompounds from &lt;em&gt;Alpinia calcarata&lt;/em&gt; (Haw.) Roscoe in Freund’s adjuvant induced arthritis in rats&lt;/strong&gt;&lt;/p&gt;

Rheumatoid arthritis (RA) is an inflammatory autoimmune disorder of unknown etiology which affects multiple joints and causes cartilage erosion. Due to the side effects associated with the conventional treatment strategies, alternate medicine using plant extracts is on the rise for the treatment of arthritic conditions. In the present study, we evaluated the anti-arthritic potential of two phytocompounds from Alpinia calcarata (Haw.) Roscoe, a potential medicinal herb, locally called ‘Kolinji’, used in traditional medicine. The selected compounds, fenchol and 2,4-di-tert-butylphenol, were evaluated for their efficacy in Freund’s complete adjuvant induced arthritis in rats. Arthritis assessment was done by measuring the paw volume, paw size, arthritic score and body weight. Various hematological and biochemical parameters were assessed on the last day of the study. Histological and radiological analysis of the ankle joints was done. The compounds treated at both doses (50 and 100 mg/kg body wt.) showed a dose dependent decrease in paw volume, paw size and arthritic score following arthritis induction. Treatment with the standard drug (diclofenac) and phytocompounds were followed by favourable outcome in the altered hematological parameters and the level of liver enzymes. The radiological and histological analysis also confirmed the anti-arthritic potential of these compounds. The results revealed the potential of the plant for use in the therapeutic management of rheumatoid arthritis.

Evaluation of Pleotropic Protective Activity of Capparis spinose Extract on Arthritis Rat Model.

Capparis spinosa grows in Asian and Mediterranean desert areas. Different parts of Capparis spinosa, including flowers, have been used in various folk medicine applications. This study aims to evaluate the anti-arthritic potential of ethanolic extract of Egyptian Capparis spinosa flowers in a rat model of rheumatoid arthritis. Moreover, analysis of Capparis spinosa extract was performed using LC-qTOF-MS/MS. Animals were split into six groups: negative control group, induced arthritic animals, arthritic rats receiving 7, 14 and 28 mg/kg of Capparis spinosa extract, respectively, in three groups to detect the optimum dose, and the induced group receiving a standard drug. The arthritic score was checked daily for 15 days after induction. After animals were sacrificed, their joints and muscles were subjected to microscopic and ultra-structure examinations. Ex vivo culturing of osteoclasts was performed. Cytokine levels were measured in all examined groups. The results revealed 7 mg/kg of Capparis spinosa extract as the optimal dose, which decreased inflammation signs through controlling chondrocytes, osteoclasts, and levels of inflammatory mediators. LC-Mass analysis revealed Capparis spinosa extract to contain a mixture of flavonol glycosides, flavan-3-ols and hydroxycinnamic acid derivatives, which may provide beneficial multifunction in regulating arthritic symptoms.

Malaysian Medicinal Plant and Their Potential as Novel Anti-Arthritic Substances

Rheumatoid Arthritis is an autoimmune disease that leads to bone and joint destruction. Statistic showed that rheumatoid arthritis can be suffered by at least 1% of adult population globally. It possesses to significant disability and consequent reduction in quality of life that contribute to substantial socio-economic impact. Current treatment is involving the prescriptions of many steroids, non-steroidal anti-inflammatory drugs (NSAIDs), anti-cytokines and anti-rheumatic drugs. However, the major challenges of these drugs are poor bioavailabity with potent to possess several adverse reactions such as gastrointestinal, cardiovascular disorders, stroke, kidney failures and costly. Therefore, scientific committees suggest medicinal plants extract need to be taken into consideration which most research studies reported for their anti-inflammatory, analgesic and anti-oxidant activities with minimum side effects, which has high potential to be used in arthritis treatment. In Malaysia, almost 2000 medicinal plant species are reported to promote several health benefits. Based on research studies, some medicinal plants possess potential bioactive compounds with the activity related to the various inflammation diseases, including arthritis. Therefore, this review focuses on Malaysian plant extracts with high therapeutic potential for the future development of novel anti-arthritic drugs. There are 5 Malaysian medicinal plants have been reviewed and all plants showed interesting anti-arthritic activities by reduced pro-inflammatory cytokines and enzymes that resulted into inhibitory arthritis manifestation that comparable to positive control group. All reviews concluded that natural active constituents contained inside the extracts as the main cause of successful anti-arthritic potential of each Malaysian medicinal plant.

Platelet-Rich Plasma Ameliorates Monosodium Iodoacetate-Induced Ankle Osteoarthritis in the Rat Model via Suppression of Inflammation and Oxidative Stress.

Until now, there is no treatment that cause complete cure of the chronic inflammatory and degenerative disease, osteoarthritis (OA). Moreover, the underlying mechanisms of OA development and progress are not fully elucidated, and the present pharmacological treatment alternatives are restricted and associated with adverse side effects. Thus, the present study was conducted to evaluate the role of platelet-rich plasma (PRP) in the remedy of OA in the rat model in terms of inflammation, ankle histopathological alterations, and oxidative stress. OA was induced in male Wistar rats by injection of MIA (2 mg)/50 µL isotonic saline in the right ankle joint for two successive days in each rat. After the 2nd MIA injection, the osteoarthritic rats were allocated into two groups such as the MIA group (group 2) and MIA + PRP group (group 3). The MIA + PRP group was treated with PRP (50 µL) by injection into the ankle joint of the right hind limb of each rat at days 14, 21, and 28 after the 2nd injection of MIA. The same equivalent volume of saline, as a substitute of PRP, was injected into the ankle joint of each rat of the normal control group (group 1) and MIA group (group 2) at the same tested periods. Swelling of joint, bodyweight, total leucocytes count (TLC), and morphological as well as histological changes of ankle joints were evaluated. Serum lipid peroxides (LPO), glutathione (GSH), and glutathione S-transferase (GST) levels were examined as biomarkers of oxidative stress. Serum tumor necrosis factor-α (TNF-α), interleukin-17 (IL-17), and interleukin-4 (IL-4) were investigated by ELISA as biomarkers of inflammation. In addition, magnetic resonance imaging (MRI) was carried out to investigate the soft tissues in joints. The obtained results revealed that PRP reduced LPO and increased GSH and GST levels in osteoarthritic rats. Also, PRP significantly diminished serum TNF-α and IL-17 levels, while it increased IL-4 serum levels in rats with MIA-induced OA. Morphological observations, histological analysis, and MRI revealed a gradual diminishing in joint inflammation and destruction of cartilage in PRP-injected osteoarthritic rats. Based on these results, it can be suggested that PRP has antiarthritic potential in MIA-induced OA, which may be mediated via suppression of inflammation and oxidative stress.

Evaluation of anti-arthritic and anti-inflammatory activities of Martynia annua L. Ethanolic extract

BackgroundArthritis is a disorder of change in joint architecture and ligament degeneration. Rheumatoid arthritis is an autoimmune disorder in which body’s immune system targets own cells and degrade them. Martynia annua L. has been used in Indian traditional therapies for the treatment of epilepsy, many types of inflammations, respiratory infection, sore throat and wound. The objective of the present study was to determine anti-inflammatory and anti-arthritic activities of M. annua ethanolic fruit extract.MethodsThe extraction was performed using ethanol as a solvent followed by phytochemical investigation of M. annua ethanolic fruit extract. Antioxidant and anti-hyaluronidase enzyme inhibition activities was performed for the fruit extract. In vivo anti-inflammatory of fruit extract was performed on Calotropis procera latex (CPL) induced paw edema in rats using ibuprofen as standard. Inflammation was observed at 0, 1, 2, 4 and 6 h. In vivo anti-arthritic of fruit extract was performed on Complete Freund’s adjuvant (CFA) induced arthritis in rats. Arthritis was observed at 0, 7, 14 and 21 day. X-Ray study was also performed for inflammatory and arthritic paw of rats.ResultsThe qualitative phytochemical screening of fruit extract showed presence of flavonoids, terpenoids, saponins, tannins, steroids, glycosides, proteins, carbohydrates, amino acids and polysaccharides. The antioxidant activity of fruit extract was 49.1 as compared to standard 45.73 at 100 μl dose. The anti-hyaluronidase enzyme inhibition activity of fruit extract was 84.60 as compared to standard 94.21 at 100 μl dose.ConclusionIt is evident from the study that Martynia annua L. extract possess both antioxidant and hyalurinodase inhibition activity at dose dependent manner as well as anti-arthritic and anti-inflammatory potential.

Appraisal of the Antiarthritic Potential of Prazosin via Inhibition of Proinflammatory Cytokine TNF-α: A Key Player in Rheumatoid Arthritis

Prazosin, a selective α1 adrenergic receptor antagonist, with documented anti-inflammatory potential, was evaluated for its antiarthritic efficacy by targeting specifically TNF-α. The antiarthritic attribute of prazosin validated through in vitro screening comprised thermally provoked denaturation of bovine serum albumin (BSA) and egg albumin along with membrane stabilization evaluation at a concentration of 100–6400 μg/mL, while in vivo screening comprised formaldehyde-instigated arthritis at the doses of 5, 10, and 20 mg/kg and complete Freund’s adjuvant (CFA)-induced arthritis at 20 mg/kg dose. Paw swelling, body weight, arthritic score, hematological parameters, and histological and radiographic examination of ankle joints were assessed for a period of 28 days after CFA immunization. Moreover, the proinflammatory cytokine TNF-α level was also assessed through quantitative real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). Prazosin revealed significant antiarthritic effect evident through protein denaturation inhibition in the egg albumin and the BSA model, stabilization of red blood cell membrane in the membrane stabilizing assay, and reduction in paw volume in formaldehyde-induced arthritis. Likewise, prazosin exhibited propitious antiarthritic effects in the CFA-provoked arthritis model manifested by paw volume and arthritic score alleviation, substantial weight loss prevention, and preservation of the normal hematological and biochemical profile. Histological and X-ray investigation unveiled no substantive structural alterations in treated rat’s ankle joints. The TNF-α expression level was also reduced. Thus, the current study is suggestive that prazosin exhibits a strong antiarthritic potential possibly through inhibition of TNF-α.

Antiarthritic Potential of Calotropis procera Leaf Fractions in FCA-Induced Arthritic Rats: Involvement of Cellular Inflammatory Mediators and Other Biomarkers

Calotropis procera (commonly known as Swallow wort) is described in the Ayurvedic literature for the treatment of inflammation and arthritic disorders. Therefore, in the present work, the antiarthritic activity of potential fractions of Swallow wort leaf was evaluated and compared with standards (indomethacin and ibuprofen). This study was designed in Wistar rats for the investigation of antiarthritic activity and acute toxicity of Swallow wort. Arthritis was induced in Wistar rats by injecting 0.1 mL of Freund’s complete adjuvant (FCA) on the 1st and 7th days subcutaneously into the subplantar region of the left hind paw. Evaluation of our experimental findings suggested that antiarthritic activity of methanol fraction of Swallow wort (MFCP) was greater than ethyl acetate fraction of Swallow wort (EAFCP), equal to standard ibuprofen, and slightly lower than standard indomethacin. MFCP significantly reduced paw edema on the 17th, 21st, 24th, and 28th days. It also showed significant effect (p &lt; 0.01) on arthritic score, paw withdrawal latency, and body weight. The inhibition of serum lysosomal enzymes and proinflammatory cytokines along with improvement of radiographic features of hind legs was also recorded with MFCP. Finally, it was concluded that MFCP can be a feasible therapeutic candidate for the treatment of inflammatory arthritis.