scholarly journals Analgesic Effects and the Mechanisms of Anti-Inflammation of Hispolon in Mice

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Heng-Yuan Chang ◽  
Ming-Jyh Sheu ◽  
Chun-Hung Yang ◽  
Tsung-Chun Lu ◽  
Yuan Shiun Chang ◽  
...  

Hispolon, an active ingredient in the fungiPhellinus linteuswas evaluated with analgesic and anti-inflammatory effects. Treatment of male ICR mice with hispolon (10 and 20 mg/kg) significantly inhibited the numbers of acetic acid-induced writhing response. Also, our result showed that hispolon (20 mg/kg) significantly inhibited the formalin-induced pain in the later phase (P<.01). In the anti-inflammatory test, hispolon (20 mg/kg) decreased the paw edema at the fourth and fifth hour after λ-carrageenin (Carr) administration, and increased the activities of superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione reductase (GRx) in the liver tissue. We also demonstrated that hispolon significantly attenuated the malondialdehyde (MDA) level in the edema paw at the fifth hour after Carr injection. Hispolon (10 and 20 mg/kg) decreased the nitric oxide (NO) levels on both the edema paw and serum level at the fifth hour after Carr injection. Also, hispolon (10 and 20 mg/kg) diminished the serum TNF-α at the fifth hour after Carr injection. The anti-inflammatory mechanisms of hispolon might be related to the decrease in the level of MDA in the edema paw by increasing the activities of SOD, GPx and GRx in the liver. It probably exerts anti-inflammatory effects through the suppression of TNF-α and NO.

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Chi-Ren Liao ◽  
Chun-Pin Kao ◽  
Wen-Huang Peng ◽  
Yuan-Shiun Chang ◽  
Shang-Chih Lai ◽  
...  

This study investigated possible analgesic and anti-inflammatory mechanisms of the methanol extract ofFicus pumila(FPMeOH). Analgesic effects were evaluated in two models including acetic acid-induced writhing response and formalin-induced paw licking. The results showedFPMeOHdecreased writhing response in the acetic acid assay and licking time in the formalin test. The anti-inflammatory effect was evaluated by λ-carrageenan-induced mouse paw edema and histopathological analyses.FPMeOHsignificantly decreased the volume of paw edema induced by λ-carrageenan. Histopathologically,FPMeOHabated the level of tissue destruction and swelling of the edema paws. This study indicated anti-inflammatory mechanism ofFPMeOHmay be due to declined levels of NO and MDA in the edema paw through increasing the activities of SOD, GPx, and GRd in the liver. Additionally,FPMeOHalso decreased the level of inflammatory mediators such as IL-1β, TNF-α, and COX-2. HPLC fingerprint was established and the contents of three active ingredients, rutin, luteolin, and apigenin, were quantitatively determined. This study provided evidence for the classical treatment ofFicus pumilain inflammatory diseases.


2012 ◽  
Vol 40 (03) ◽  
pp. 581-597 ◽  
Author(s):  
Chi-Ren Liao ◽  
Yuan-Shiun Chang ◽  
Wen-Huang Peng ◽  
Shang-Chih Lai ◽  
Yu-Ling Ho

We investigated possible mechanisms of analgesic and anti-inflammatory activities of the methanol extract from the leaf of Elaeagnus oldhamii Maxim. (EOMeOH). EOMeOHwas evaluated for its analgesic activity in acetic acid-induced writhing response and formalin test, and anti-inflammatory effect was examined by λ-carrageenan-induced paw edema assay. We detected the activities of GPx, GRd and SOD in the liver, and the levels of inflammatory mediators including IL-1β, IL-6, TNF-α, COX-2, MDA and NO in the edema paw to investigate the mechanism of action against inflammation. Total polyphenol, flavonoid and flavanol contents of EOMeOHwere detected to explore its antioxidant activities. Results showed that, in the analgesic test, EOMeOHdecreased acetic acid-induced writhing response and the licking time in the late phase of formalin test. In the anti-inflammatory test, EOMeOHdecreased paw edema at the 2nd, 3rd, 4th and 5th h after λ-carrageenan had been injected. EOMeOHincreased the activities of SOD and GPx in liver tissue and decreased MDA, NO, IL-1β, IL-6, TNF-α and COX-2 levels in paw edema tissue at the 3rd h after λ-carrageenan-induced inflammatory reaction. EOMeOHexhibited abundant polyphenol, flavonoid and flavanol contents. In HPLC fingerprint test of EOMeOH, two index ingredients, ursolic acid and pomolic acid, were isolated from EOMeOHand were exhibited in HPLC chromatographic analysis. The results demonstrated analgesic and anti-inflammatory effects of EOMeOH. It was indicated that the anti-inflammatory mechanism of EOMeOHmay be due to declined levels of NO and MDA in the edema paw through increasing the activities of SOD, GPx and GRd in the liver. Additionally, EOMeOHdecreased IL-1β, IL-6, TNF-α and COX-2 levels in the edema paw. The results suggested its value in future development of herbal medicine for the treatment of inflammatory diseases.


2018 ◽  
Vol 30 (2) ◽  
pp. 173-184 ◽  
Author(s):  
Olufunmilayo O. Adeyemi ◽  
Ismail O. Ishola ◽  
Elizabeth T. Adesanya ◽  
Destiny O. Alohan

Abstract Background Tetracera alnifolia Willd. (Dilleniaceae) is used in traditional African Medicine for the treatment of headache, abdominal pain, and rheumatism. Hence, this study sought to investigate the antinociceptive and anti-inflammatory effects of the hydroethanolic leaf extract of T. alnifolia (HeTA) in rodents. Methods Antinociceptive activity was evaluated using the acetic acid-induced writhing, formalin-/capsaicin-induced paw licking and hot plate tests in mice. The contribution of opioidergic, l-arginine-nitric oxide, and ATP-sensitive potassium channel pathways in HeTA-induced antinociception was also evaluated. The anti-inflammatory effect was assessed using the carrageenan-induced paw edema, xylene ear edema, cotton pellet granuloma, and complete Freund’s adjuvant (CFA)-induced arthritis in rats. Results HeTA (100, 200, and 400 mg/kg, p.o.) produced significant (p<0.05) decrease in mean number of acetic acid-induced writhing, time spent licking paw in formalin, and capsaicin tests as well as time course increase in nociceptive reaction latency in hot plate test. HeTA-induced antinociception was prevented by pretreatment of mice with naloxone (non-selective opioid receptor antagonist), l-arginine (nitric oxide precursor), or glibenclamide (ATP-sensitive potassium channel blocker). HeTA (100 mg/kg, p.o.) produced a significant anti-inflammatory effect against carrageenan-induced rat paw edema (1–5 h), xylene-induced ear edema, cotton pellet-induced granuloma formation, and CFA-induced arthritis in rats. The effects of HeTA in various models were similar to the effect of the standard reference drugs. Conclusions Findings from this study showed that HeTA possesses antinociceptive effect possibly mediated through peripheral opioid receptors with activation of l-arginine-nitric oxide and ATP-sensitive potassium channel pathway as well as anti-inflammatory activity.


2009 ◽  
Vol 37 (03) ◽  
pp. 573-588 ◽  
Author(s):  
Shang-Chih Lai ◽  
Wen-Huang Peng ◽  
Shun-Chieh Huang ◽  
Yu-Ling Ho ◽  
Tai-Hung Huang ◽  
...  

In this study, we evaluated the analgesic effect of methanol extract from Desmodium triflorum DC (MDT) by using animal models of acetic acid-induced writhing response and formalin test. The anti-inflammatory effect of MDT was investigated by λ-carrageenan-induced paw edema in mice. In order to study the anti-inflammatory mechanism of MDT, we detected the activities of glutathione peroxidase (GPx) and glutathione reductase (GRd) in the liver, the levels of interleukin-1β (IL-1β), tumor necrosis factor (TNF-α), malondialdehyde (MDA) and nitric oxide (NO) in the edema paw tissue. In the analgesic test, MDT (0.5 and 1.0 g/kg) decreased the acetic acid-induced writhing response and the licking time on the late phase in the formalin test. In the anti-inflammatory test, MDT (0.5 and 1.0 g/kg) decreased the paw edema at the 3rd, 4th, 5th and 6th hour after λ-carrageenan administration. On the other hand, MDT increased the activities of SOD and GRd in liver tissues and decreased the MDA level in the edema paw at the 3rd hour after λ-carrageenan-induced inflammation. MDT also affected the levels of interleukin-1β, tumor necrosis factor-α, NO and MDA which were induced by λ-carrageenan. The results suggested that MDT possessed analgesic and anti-inflammatory effects. The anti-inflammatory mechanism of MDT might be related to the decreases in the level of MDA in the edema paw via increasing the activities of SOD and GRd in the liver, and the NO level via regulating the IL-1β production and the level of TNF-α in the inflamed tissues.


2014 ◽  
Vol 42 (06) ◽  
pp. 1485-1506 ◽  
Author(s):  
Shyh-Shyun Huang ◽  
Jeng-Shyan Deng ◽  
Jaung-Geng Lin ◽  
Chao-Ying Lee ◽  
Guan-Jhong Huang

In this study, we have investigated the anti-inflammatory effects of trilinolein (TL) using a lipopolysaccharide (LPS)-stimulated mouse macrophage (RAW264.7) and carrageenan (Carr)-induced mouse paw edema model. When RAW264.7 macrophages were treated with different concentrations of TL together with LPS, a significant concentration-dependent inhibition of nitric oxide (NO), tumor necrosis factor (TNF-α), interleukin-1 (IL-1β), and IL-6 production was detected. Western blotting revealed that TL blocked the protein expression of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), nuclear factor-κB (NF-κB), IκBα, and mitogen-activated protein kinases (MAPKs). In the anti-inflammatory test, TL decreased the paw edema at the 5th h after λ-Carr administration in paw edema. We also demonstrated TL significantly attenuated the malondialdehyde (MDA) level in the edema paw at the 5th h after Carr injection. TL decreased the NO and TNF-α levels on the serum level at the 5th h after Carr injection. Western blotting revealed that TL decreased Carr-induced iNOS and COX-2 expressions at the 5th h in the edema paw. The anti-inflammatory mechanisms of TL might be related to the decrease in the level of iNOS, COX-2, IκBα, and MAPK pathway through the suppression of TNF-α, IL-1β, and IL-6.


2009 ◽  
Vol 37 (01) ◽  
pp. 97-111 ◽  
Author(s):  
Ying-Chih Lin ◽  
Hao-Yuan Cheng ◽  
Tai-Hung Huang ◽  
Hsin-Wei Huang ◽  
Yi-Hsuan Lee ◽  
...  

The present study was intended to examine the analgesic effect of the 70% methanol extract of Torenia concolor Lindley var. formosana Yamazaki (TCMeOH) and betulin using models of acetic acid-induced writhing response and formalin test. In addition, we investigated the anti-inflammatory effect of TCMeOHand betulin using model of λ-carrageenan-induced paw edema. We observed the activities of antioxidant enzymes (SOD, GPx and GR) in the liver and the levels of malondialdehyde (MDA) and nitric oxide (NO) in the edema paw. The results showed that TCMeOH(1.0 and 2.0 g/kg) and betulin (30 and 90 mg/kg), significantly inhibited the acetic acid-induced writhing response. TCMeOH(2.0 g/kg) and betulin (30 and 90 mg/kg) significantly inhibited formalin-induced licking time during both the early and late phases. TCMeOH(0.5, 1.0 and 2.0 g/kg) and betulin (30 and 90 mg/kg) also significantly decreased the paw edema at the 4th hour after λ-carrageenan injection. Furthermore, TCMeOHand betulin treatment also significantly increased the activities of SOD, GR and GPx in the liver while decreasing the level of MDA in the edema paw. Finally, betulin (30 and 90 mg/kg) also caused considerable reduction of NO level in the edema paw. Taken together, the present results indicated that TCMeOHand betulin possessed analgesic and anti-inflammatory effects. The anti-inflammatory mechanism of TCMeOHand betulin may be related to decreasing the levels of MDA and NO in the edema paw by increasing the activities of antioxidant enzymes in the liver.


2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Shen-Chieh Chou ◽  
Yung-Jia Chiu ◽  
Chao-Jung Chen ◽  
Ying-Chih Lin ◽  
Chung-Hao Wu ◽  
...  

The aim of this study was to investigate the possible analgesic and anti-inflammatory mechanisms of the ethanolic extract ofA. morrisonensisHayata (AMEtOH). Two models were employed for evaluation of the analgesic effects: acetic acid-induced writhing response and formalin-induced paw licking. The results demonstrated thatAMEtOHdecreased writhing response for both the acetic acid assay and the licking time in the formalin test. The anti-inflammatory effect was evaluated by paw edema of mice induced byλ-carrageenan.AMEtOHsignificantly decreased induced paw edema three to four hours afterλ-carrageenan injection. Additionally, the results indicated that the anti-inflammatory mechanism ofAMEtOHmay be due to the declined levels of nitric oxide (NO) and malondialdehyde (MDA) in the edematous paw. Furthermore,AMEtOHdecreased the tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) levels, leading to the reduction of prostaglandins and subsequently alleviated edema. Isolation and purification of theAMEtOHextract determinedp-hydroxyacetophenone to be a major component at 130 mg/g of extract. No mortality was observed in the acute toxicity test given at the dose of 10 g/kg. This study demonstrated the possible mechanisms for the analgesic and anti-inflammatory effects ofAMEtOHfor mice and provided evidence for the ethnobotanical uses ofA. morrisonensisin treating inflammatory diseases.


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Lili Wen ◽  
Yang Huang ◽  
Xianbiao Xie ◽  
Wan Huang ◽  
Junqiang Yin ◽  
...  

The aims of this study were to evaluate the anti-inflammatory and analgesic effects of bufalin, a major component of “Chan-su.” We used a carrageenan-induced paw edema model to assess the anti-inflammatory activity of this compound, and Western blot analysis detected NF-κB signaling during this effect. The antinociceptive activities were evaluated by acetic acid-induced writhing, formalin, and hot-plate tests; open-field test investigated effects on the central nervous system. Our data showed that bufalin (0.3 and 0.6 mg/kg, i.p.) potently decreased carrageenan-induced paw edema. Bufalin down regulated the expression levels of nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-1β(IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α(TNF-α) during these treatments. Further studies demonstrated that bufalin significantly inhibited the activation of NF-κB signaling. Bufalin also reduced acetic acid-induced writhing and the licking time in the formalin test and increased hot-plate reaction latencies. Naloxone pretreatment (2 mg/kg, i.p.) in the early phases of the formalin test and hot-plate test significantly attenuated the bufalin-induced antinociception effects, which suggests the involvement of the opioid system. A reduction in locomotion was not observed in the open-field test after bufalin administration. Taken together, bufalin treatment resulted in in vivo anti-inflammatory and analgesic effects, and bufalin may be a novel, potential drug for the treatment of inflammatory diseases.


2010 ◽  
Vol 38 (03) ◽  
pp. 529-546 ◽  
Author(s):  
Zhen-Rung Lai ◽  
Wen-Huang Peng ◽  
Yu-Ling Ho ◽  
Shun-Chieh Huang ◽  
Tai-Hung Huang ◽  
...  

In this study, we evaluated the analgesic effect of the methanol extract of Kalanchoe gracilis (MKGS) stem in animal models by inducing writhing response with acetic acid and conducting formalin test. The anti-inflammatory effect of MKGS was also estimated on mice with λ-carrageenan induced paw edema model. In order to investigate the anti-inflammatory mechanism of MKGS, we analyzed the activities of glutathione peroxidase (GPx) and glutathione reductase (GRx) in the liver, and the levels of interleukin-1β (IL-1β), tumor necrosis factor (TNF-α), malondialdehyde (MDA) and nitric oxide (NO) in the edema paw tissue. In the analgesic tests, MKGS (0.5 and 1.0 g/kg) decreased both the acetic acid-induced writhing response and the licking time in the late phase of the formalin test. In the anti-inflammatory test, MKGS (0.1, 0.5 and 1.0 g/kg) decreased paw edema at the third, fourth, fifth and sixth hours after λ-carrageenan had been administrated. Furthermore, MKGS increased the activities of SOD and GRx in liver tissues and decreased MDA level in the edema paws three hours after λ-carrageenan was injected. MKGS also affected the levels of IL-1β, TNF-α and NO induced by λ-carrageenan. All these results suggested that MKGS possessed analgesic and anti-inflammatory effects. The anti-inflammatory mechanism of MKGS might be related to the lowering of MDA level in the edema paw via increasing the activities of superoxide dismutase (SOD) and GRx in the liver, as well as the decreases in the levels of TNF-α and NO, and the production of IL-1β in inflamed tissues.


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