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Background: The oleo-gum resin of Boswellia serrata contains pentacyclic triterpenic acids known as Boswellic acids (BAs) that are responsible for the anti-inflammatory and anti-arthritic activities by inhibition of 5-lipoxygenase. Methods: Soylecithin based tablet formulation of an enriched extract of BAs were formulated and evaluated comparatively with the unformulated extract for bioavailability on rabbits and therapeutic efficacy against arthritis on rats targeting two primary constituent 11-keto ?-boswellic acid (KBA) and 3-O-acetyl 11-keto ?-boswellic acid (AKBA). Total BAs content in the enriched fraction was measured and characterized by HPLC analysis. Soy lecithin based tablet of BAs enriched extract was prepared and evaluated for different parameters. Tablets at 160 and 320 mg/kg, and unformulated extract 160 mg/kg was assessed on CFA-induced arthritic rat model and bioavailability was evaluated on the rabbit. Results: Tablet formulation showed two times higher efficacy in increasing hot plate reaction time, reduction in paw volume, and TNF-? levels compared to unformulated extract signifying enhanced systemic absorption and availability of the BAs at the site of action. The tablet at 320 mg/kg dose showed repair of articular surfaces with small areas of erosion and irregularities in the connective tissue. Plasma samples of rabbit showed identified peaks only for KBA. Conclusion: The soy lecithin based tablet of BAs enriched extract at both doses showed higher peak plasma concentration and AUC compared to unformulated enriched extract. The results of the study substantiated higher efficacy and bioavailability of B. serrata gum resin enriched extract in the form of lecithin based tablet formulation.
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Objective: To explore the immunomodulatory, anti-inflammatory, anti-oxidant and anti-arthritic activity of aqueous and methanolic extracts of Nauclea pobeguinii stem bark. Methods: For in vitro assays, the production of reactive oxygen species (chemiluminescence technique), the proliferation of T cells (liquid scintillation counter method), as well as the inhibition of cyclooxygenase, lipoxygenase, protein denaturation, and free radicals [DPPH, ABTS and nitric oxide (NO) inhibition methods] were evaluated. For in vivo assays, a polyarthritis model was induced by complete Freund's adjuvant in rats. The aqueous and methanolic extracts of Nauclea pobeguinii stem bark were administered orally at 150 and 300 mg/kg. After 28 days of treatment, the total blood was taken to quantify the hematological parameters and the serum was used to evaluate the biochemical parameters (alanine aminotransferase, aspartate transaminase, phenylalnine ammonialyase, and proteins) and oxidative stress parameters (malondialdehyde, catalase, superoxide dismutase, glutathione and NO), and then the knee joint was removed for histological analysis. Results: The extracts of Nauclea pobeguinii significantly reduced the production of intra- and extracellular reactive oxygen species and decreased T cell proliferation. They had an inhibitory effect on cyclooxygenase, lipoxygenase, and protein denaturation, and both extracts had antioxidant capacity on DPPH, ABTS and NO. Both extracts alleviated joint inflammation and pain sensitivity after complete Freund's adjuvant injection, reduced alanine aminotransferase, aspartate transaminase, alkaline phosphatase, NO and malondialdehyde levels, increased protein concentration, superoxide dismutase, catalase and glutathione activity, and restored the cytoarchitecture of the joint after complete Freund's adjuvant injection. Conclusions: The aqueous and methanolic extracts of Nauclea pobeguinii have immunomodulatory, anti-inflammatory, anti-oxidant and anti-arthritic properties.
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Objective: To explore the immunomodulatory, anti-inflammatory, anti-oxidant and anti-arthritic activity of aqueous and methanolic extracts of Nauclea pobeguinii stem bark.Methods: For in vitro assays, the production of reactive oxygen species (chemiluminescence technique), the proliferation of T cells (liquid scintillation counter method), as well as the inhibition of cyclooxygenase, lipoxygenase, protein denaturation, and free radicals [DPPH, ABTS and nitric oxide (NO) inhibition methods] were evaluated. For in vivo assays, a polyarthritis model was induced by complete Freund's adjuvant in rats. The aqueous and methanolic extracts of Nauclea pobeguinii stem bark were administered orally at 150 and 300 mg/kg. After 28 days of treatment, the total blood was taken to quantify the hematological parameters and the serum was used to evaluate the biochemical parameters (alanine aminotransferase, aspartate transaminase, phenylalnine ammonialyase, and proteins) and oxidative stress parameters (malondialdehyde, catalase, superoxide dismutase, glutathione and NO), and then the knee joint was removed for histological analysis. Results: The extracts of Nauclea pobeguinii significantly reduced the production of intra- and extracellular reactive oxygen species and decreased T cell proliferation. They had an inhibitory effect on cyclooxygenase, lipoxygenase, and protein denaturation, and both extracts had antioxidant capacity on DPPH, ABTS and NO. Both extracts alleviated joint inflammation and pain sensitivity after complete Freund's adjuvant injection, reduced alanine aminotransferase, aspartate transaminase, alkaline phosphatase, NO and malondialdehyde levels, increased protein concentration, superoxide dismutase, catalase and glutathione activity, and restored the cytoarchitecture of the joint after complete Freund's adjuvant injection. Conclusions: The aqueous and methanolic extracts of Nauclea pobeguinii have immunomodulatory, anti-inflammatory, anti-oxidant and anti-arthritic properties.
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Trace metals deficiency or excess are associated with the etiology and pathogenesis of rheumatoid arthritis(RA). Aconiti Radix Cocta(A) and Paeoniae Radix Alba(B) are commonly used together for the treatment of RA. In this study, we aim to determine anti-arthritic-related metal bioavailability in the compatibility of herb A and B for avoiding metal deficiency or excess, and optimize the combination ratio of herb A and B, accordingly. Anti-arthritic-related metal bioaccessibility were evaluated by in vitro simulator of all gastrointestinal tract(including mouth, stomach, small and large intestines), and the roles of gastrointestinal digestive enzymes and intestinal microflora were investigated. Anti-arthritic-related metal bioavailability was assessed by the affinity adsorption with liposomes. The results indicated that compatibility proportion of corresponding herbal plants, gastrointestinal digestion and microbial metabolic, which could affect metal digestion and absorption. The optimal compatibility proportion of 1 A∶1 B is recommended, according to the dose of anti-arthritic-related metal bioavailability, which is often chosen for clinical practice of RA therapy. Thus, anti-arthritic-related metal bioavailability might be the key active substances for RA treatment.
Subject(s)
Aconitum , Biological Availability , Drugs, Chinese Herbal , PaeoniaABSTRACT
Arthritis is a form of joint disorder that involves inflammation of one or more joints. It is very common condition especially in women and older people. Ayurveda has contributed a lot for the management of arthritic conditions. The plant Bala, identified as Sida cordifolia Linn. is a widely used drug in many of the Ayurvedic formulations especially in those for arthritic conditions. Kashaya (decoction) is one of the commonly prescribed preparations in Ayurveda. Present study was aimed to assess the anti-arthritic activity of Kashaya (decoction) of root of Sida cordifolia Linn. by inhibition of protein denaturation method and Inhibition of proteinase enzyme activity. Kashaya of roots of Bala was prepared as per standard procedure and was used to induce protein denaturation in Bovine serum albumin and to inhibit the activity of proteinase enzyme, trypsin. The absorbance was read by spectrophotometer to evaluate the percentage of inhibition in both the procedures. Each experiment was done in triplicates. The results were compared with standard drug Diclofenac sodium. Sida cordifolia Linn. showed dose dependent inhibitory activity and highest activity was seen in 500µg/ml concentration in both the experiments. The result showed that root of Sida cordifolia Linn. is having anti-arthritic property. Further studies can be carried out with other formulations of Bala like Choorna (powder), Swarasa (juice) etc. to compare their anti-arthritic activity. The study supports the classical use of plant Bala in various formulations in the treatment of arthritis.
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ABSTRACT Moussonia deppeana (Schltdl. & Cham.) Klotzsch ex Hanst., Gesneriaceae, known as tlachichinole, is a Mexican medicinal plant used for treatment of chronic inflammation-related diseases such as arthritis. In this paper, the main metabolite verbascoside was quantified in ethanolic extract; anti-arthritic and antioxidant activities were also evaluated in Complete Freund's Adjuvant induced arthritis in mice, with complete hematological evaluation, and oxidative stress measure in edema and ganglionic tissues on day 28. In popliteal ganglion, CD4+ lymphocytes and tumor necrosis factor alpha concentration were measured in addition to histological analysis. Ethanolic extract contained 79.2 mg of verbascoside/g extract, and this extract at 450 mg/kg generated an inhibition of 24% over paw edema development and increased body weight gain on final day. For hematological parameters, same dose decreased total leukocytes and lymphocytes, as well as decreased oxidation rate over biomolecules in edema and ganglionic tissues, and increased antioxidant enzyme activity. In ganglionic tissue, CD4+ lymphocytes and tumor necrosis factor alpha level showed no differences at any tested dose compared to complete Freund's adjuvant untreated group. Histological analysis of popliteal ganglion revealed moderate reduction of follicular hyperplasia, leukocyte infiltration and lipid inclusions at 450 mg/kg dose. Ethanolic extract of M. deppeana possesses anti-edematous activity associated to a moderate reduction in follicular hyperplasia, with immune-modulatory and antioxidant effects during experimental arthritis in mice.
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ABSTRACT This study assesses the anti-arthritic effect of the affinin-enriched (spilanthol, main alkamide) hexane extract from the roots of Heliopsis longipes (A. Gray) S.F. Blake, Asteraceae, on a Freund adjuvant-induced arthritis model in rodents. The extract was orally administered at a dose of 2, 6.6, or 20 mg/kg; a significant edema-inhibitory activity in the acute and chronic phases was observed with a dose of 2 and 20 mg/kg, respectively. The extract showed higher anti-inflammatory and anti-arthritic effects than the reference drug phenylbutazone (80 mg/kg). Moreover, the extract prevented the occurrence of secondary lesions associated to this pharmacological model.
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<p><b>OBJECTIVE</b>To investigate whether the dried root of Phellodendron amurense Ruprecht (Phellodendri cortex; PC) extract improves arthritic symptoms through anti-inflammatory and immune-modulatory effects in collagen-induced arthritis in mice.</p><p><b>METHODS</b>Rheumatoid arthritis (RA) was induced in male DBA/1 mice by immunization with type II collagen (ColII). CIA mice were divided into 5 groups (n=10 per a group) with normal, CIA control, PC extract (50 mg/kg and 100 mg/kg)-treated, and meloxicam (50 mg/kg)-treated as the reference drug. The PC extract or meloxicam were administered orally in CIA mice once a day for 14 days after arthritis induction. Arthritic score, levels of anti-ColII IgGantibody, prostaglandin E(PGE), tumor necrosis factor (TNF)-α, and interleukin (IL)-17 in the sera of CIA mice were measured. Histopathological changes in the ankle joints of CIA mice were also analyzed by staining with hematoxylin and eosin (H and E), safranin-O and immunohistochemistry using anti-TNF-α and anti-IL-17 antibodies.</p><p><b>RESULTS</b>The arthritic score was increased in CIA mice in a time-dependent manner, as were the serum levels of anti-ColII IgGantibody, PGE, TNF-α, and IL-17. However, the oral administration of PC extract at 50 and 100 mg/kg in CIA mice significantly decreased the arthritic scores, and the serum levels of anti-ColII IgG, PGE, TNF-α, and IL-17 compared with those in the CIA group (P<0.05 or P<0.01). Furthermore, histopathological improvement of the joint architecture in CIA mice was observed after administration of PC extract. PC extract also significantly inhibited the expression of TNF-α and IL-17 in the joints of CIA mice by suppressing the expression of their mRNA and proteins.</p><p><b>CONCLUSION</b>PC extract may improve the pathological progression of RA through the inhibition of joint destruction by synovial inflammation and immune-stimulation, therefore, it would be a potential anti-arthritic agent in RA.</p>
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The combined Bi-herbal ethanolic extract (BHE) made up of equal quantities of leaves of Pisonia grandis and Cardiospermum halicacabum was evaluated for its synergistic in vitro and in vivo Anti-arthritic effects and was compared with its individual ethanolic extracts of Pisonia grandis (EPG) and Cardiospermum halicacabum (ECH). The inhibition of protein denaturation, membrane stabilization and proteinase enzyme inhibition were studied as in vitro and Freund’s adjuvant arthritis model in Wistar rats was used to study the in vivo Anti-arthritic activity. The three extracts (BHE, EPG, and ECH) at the dose level of 300mg/kg b.w.in 2%CMC were ingested orally to the CFA treated rats once daily for 40 days and the percentage inhibition of the paw volume increase due to the drug treatment was calculated. All the three plant extracts exhibited dose dependent stabilization of the RBC membranes, inhibition of protein denaturation and protease inhibition. The BHE has got a significant reduction in the paw volume and oedema when comparable to EPG and ECH in these intoxicant treated animals. These observed effects may be due to its inhibition of free radical production due to the immunological and inflammatory reactions or minimizing protein denaturation or proteinase enzyme or stabilizing the membranes.
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Traditionally, the leaves of Annona muricata L., Annonaceae, are used to treat headaches, fever, toothache, cough and asthma. The decoction of the leaves has parasiticide, antirheumatic and antineuralgic effects when used internally, while the cooked leaves, applied topically, fight rheumatism and abscesses. The aim of this study was to investigate acute and chronic anti-inflammatory potential of an ethanolic leaf extract of A. muricata (AML) in animal models. The ethanolic extract of A. muricata leaf extract was prepared and administered orally to experimental animals used. The anti-inflammatory activity was determined by xylene-induced ear edema in mice and Complete Freund's adjuvant (CFA)-induced arthritis in rats. The results demonstrated that AML is effective for both acute and chronic inflammation. It also significantly attenuated both TNF-α and IL-1β levels in CFA-induced arthritis model. Thus, these results have suggested that AML possesses both anti-inflammatory and anti-arthritic activities. The findings also suggest that AML presents notable anti-arthritic activity that may be mediated by suppressing pro-inflammatory cytokines.