• International Journal of Oral Biology
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• 제35권3호
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• pp.83-89
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• 2010

We investigated the role of the central MAPK pathways in extra-territorial (referred) pain resulting from inflammation of the temporomandibular joint (TMJ). Experiments were carried out on male Sprague-Dawley rats weighing 220-280 g. Under anesthesia, these animals were injected with $50\;{\mu}L$ of complete Freund's adjuvant (CFA) into the TMJ using a Hamilton syringe. In the control group, saline was injected into the TMJ. To identify the extent of inflammation of the TMJ, Evans blue dye (0.1%, 5 mg/kg) was injected intravenously at 1, 3, 6, 9, 12 and 15 days after CFA injection. The concentration of Evans blue dye in the extracted TMJ tissue was found to be significantly higher in the CFA-treated animals than in the saline-treated group. Air-puff thresholds in the vibrissa pad area were evaluated 3 days before and at 3, 6, 9, 12, 15 and 18 days after CFA injection into the TMJ. Referred mechanical allodynia was established at 3 days, remained until 12 days, and recovered to preoperative levels at 18 days after CFA injection. This referred mechanical allodynia was observed in contralateral side area. To investigate the role of central MAPK pathways, MAPK inhibitors ($10\;{\mu}g$) were administrated intracisternally 9 days after CFA injection. SB203580, a p38 MAPK inhibitor, significantly attenuated referred mechanical allodynia, as compared with the vehicle group. PD98059, a MEK inhibitor, also reduced CFA-induced referred mechanical allodynia. These results suggest that TMJ inflammation produces extra-territorial mechanical allodynia, and that this is mediated by central MAPK pathways.

• The Korean Journal of Pain
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• 제11권2호
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• pp.194-200
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• 1998

Background: Effect of nitric oxide on the hyperalgesia induced by inflammation is controversial. We attempted to find out the peripheral effects of nitric oxide (NO) on hyperalgesia induced by Freund's complete adjuvant (FCA) induced inflammation. Methods: Male Sprague Dawley rats were divided into three groups; control, low dose NG-nitro-L-arginine methyl ester (L-NAME, 500 ug), high dose L-NAME (5 mg). Inflammation was induced by injecting 0.1 ml of FCA intraplantarly, which shows typical hyperalgesia within twelve hours after injection and maintained for about one week. Drugs were injected 2 hours before, just before, and 3, 6, 9, 12 hours after the injection of FCA. Effect of L-NAME on hyperalgesia was assessed by measuring mechanical hyperalgesia and spontaneous pain for 3 days. Results: When injected at the site of inflammation, L-NAME caused dose dependent reduction of spontaneous hyperalgesia. Mechanical hyperalgesia was also reduced by high dose L-NAME (p<0.05). After systemic injection of high dose L-NAME in the back, no significant difference was noticed. Conclusions: This suggest that L-NAME reduces FCA induced hyperalgesia via peripheral action.

• 한국전문물리치료학회지
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• 제15권1호
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• pp.69-76
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• 2008

This study was designed to determine the effects of swimming and low power laser on rheumatoid arthritis in Sprague-Dawley rats. Rheumatoid arthritis was induced in 36 rats among 48 Sprague-Dawley rats by the subcutaneous injection of .05 $m{\ell}$ Freund's Complete Adjuvant into the right hind paw and .05 $m{\ell}$ Freund's Complete Adjuvant into the right hind knee joint capsule. A second injection was performed by the same method using .1 $m{\ell}$ Freund's Complete Adjuvant per a rat. Arthritic rats were divided into 8 groups: each 1 week and 2 weeks of arthritic swimming, arthritic laser, arthritic case control and normal group. In this study, several experimental tests were performed to determine the concentration of Interleukin-6, the space of the knee joint and the thickness of the hind paw. The concentration of Interleukin-6 and hind paw thickness decreased in the swimming group and laser group as compared to the control group. The space of the knee joint increased significantly after the swimming exercise. Swimming and low power laser therapy positively affect rheumatoid arthritis in rats affect by decreasing the concentration of Interleukin-6 and hind paw thickness, and increasing the space of the knee joint.

• Journal of Acupuncture Research
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• 제32권2호
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• pp.65-75
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• 2015

Objectives : The purpose of this study was to investigate the effects of warm needling at $GB_{30}{\cdot}GB_{34}$ on Complete Freund's Adjuvant(CFA)-induced rheumatoid arthritis in rats. Methods : Arthritis was induced by injecting CFA subcutaneously into the left knee joint and paw. Acupuncture(AT) and warm needling(W-AT0.5, W-AT1.0) were injected at $GB_{30}{\cdot}GB_{34}$, every other day for a total of 5 times beginning on day 10 after the CFA injection. Thereafter, external shape, paw edema, serum aminotransferase and anti-inflammatory factors were assessed, and hematological and histological observations were made. Results : In paw edema volume all 3 groups(AT, W-AT0.5, W-AT1.0) showed significant decrease compared to the CFA control group. In TNF-${\alpha}$ and IL-6, all 3 groups showed significant decrease compared to CFA control group. In AST and ALT all 3 groups showed no significant change. In IL-$1{\beta}$, W-AT0.5 and W-AT1.0, groups showed significant decrease compared to the CFA control group. Leucocyte, erythrocyte and thrombocyte, all 3 groups showed no significant change. In histological observations, all 3 groups were similar to the intact group in terms of synoviocyte, cartilage lacuna and cartilage cells. Conclusions : The results suggest that warm needling at $GB_{30}{\cdot}GB_{34}$, has the effect of suppressing inflammation of CFA-induced rheumatoid arthritis in rats.

• 대한약침학회지
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• 제6권2호
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• pp.29-43
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• 2003

9Objective : We carried out this experimental study in order to investigate the effect of Chaenomelis Fructus(木瓜) extract and herbal-acupuncture on the arthritis induced by injecting Freund's complete adjuvant Method : 1. We categorized SD-rats into five groups as followings. (1) Control: Without any Treat (2) Treat I: treated by acupuncture (3) Treat II: treated by drinking 5% saline (4) Treat III: treated by drinking Chaenomelis Fructus(木瓜) extract (5) Treat IV: treated by Chaenomelis Fructus(木瓜) herbal-acupuncture 2. We established ten items for decision of experimental results as followings Edema rate, Pain endurance, WBC, Hemoglobin, Platelet, Total protein, Albumin, Globulin, RA factor, CRP Results : The groups that showed significant effects compared with Contol group were explained as followings. 1. Edema rate : Treat I , Treat III 2. Pain endurance : Treat I, Treat IV 3. WBC : Treat IV 4. Hemoglobin : Treat III 5. Plat99elet : Treat IV 6. Total protein : Treat I, Treat IV 7. Albumin : None 8. Globulin : Treat I, Treat IV 9. RA factor : Treat I, Treat IV 10. CRP : Treat IV Conclusion : Observing above experimental results, we can guess that the effects of acupuncture and Chaenomelis Fructus(木瓜) herbal-acupuncture on Freund's adjuvant arthritis are more superior than other ways. In addition, we can find that the latter is more better than the former in effect by two items(platelet, CRP).

• Journal of Acupuncture Research
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• 제20권3호
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• pp.117-130
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• 2003

To study the analgesic and effect and its mechanism of eletroacupunture(EA) on the chronic inflammatory pain 50 rats were induced with arthralgesia by injecting complete freund's adjuvant(CFA). Two weeks after the injection of CFA, EA stimulation(2Hz, 0.07mA, 0.3ms) was delivered to Jogsamni($ST_{36}$) for 20 minutes. Analgesic effect was evaluated by using the tail flick latency(TFL) and the analgesic mechanism was observed by applying TFL with the pretreatment with naloxone and yohimbine. The results were as follows ; 1. TFL level for the model of adjuvant-induced arthritis decreased as time went by and it induced the hyperalgesia. 2. EA stimulation delivered to Jogsamni($ST_{36}$) for 20 minutes in the rat model of adjuvant-induced arthritis brought analgesic effect and its effect had lasted for 40 minutes after the stimulation. 3. The analgesic effect of Jogsamni($ST_{36}$) EA in the rat model of adjuvant-induced arthritis was blocked by pretreatment with naloxone(2mg/kg,i.p). This result suggests that the EA effect on the chronic inflammatory pain can be related to the endogenous opioid mechanism. 4. The analgesic effect of Jogsamni($ST_{36}$) EA in the rat model of adjuvant-induced arthritis was blocked by pretreatment with naloxone(2mg/kg,i.p). This result suggests that the EA effect on the chronic inflammatory pain can be related to the ${\alpha}_2$-adrenergic mechanism.

• 동의생리병리학회지
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• 제18권2호
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• pp.484-489
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• 2004

Objective : In order to study the effects of Herba ChelidoniiㆍClematis Florida ThunbㆍChaenomelis Fructus complex herbal acupuncture on anti-inflammation and liver in rats with arthritis induced Freund's complete adjuvant. Method : We performed several experimental items : that is edema value, numbers of WBC. total protein, total bilirrubin, SGOT, SGPT. Result: The change in the right plantar edema shows that Control group was reduced by 0% but, ST group ,Sample A group and Sample B group were reduced by 287.2%, 343.0%, 272.5% respectively. In the WBC count, ST group, Sample A group, Sample B group showed a decrease with statistical significance as compared with control group. In the total protein, Sample B group showed a decrease with statistical significance as compared with control group. In the total bilirrubin, SGOT, SGPT, None showed noxious variation with statistical significance as compared with control group. Conclusion : As a result of this experiment, it is concluded that Herba ChelidoniiㆍClematis Florida ThunbㆍChaenomelis Fructus complex herbal acupuncture showed that therapeutic effect of anti-inflammation in adjuvant arthritis and non-toxic effect of liver.

• 동의생리병리학회지
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• 제18권2호
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• pp.446-450
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• 2004

Objectives: In order to study the effects of Harpagophyti Radix in rats with arthritis induced by Freund's complete adjuvant. Methods : In this study, rats with arthritis induced by Freund's complete adjuvant were divided into four groups; Normal, Control, Sample A(Harpagophyti Radix 6mg/200g) and Sample B(Harpagophyti Radix 12mg/200g). After 1 week, separated searches were made on the change of edema rate, the count of WBC, the quantity of total protein, total bilirubin, GOT and GPT in the serum. Results: In the right plantar edema, both of Sample groups showed a decrease in comparison with Control group. In the count of WBC, the quantity of serum total protein and SGOT, Sample B showed a decrease with statistical significance in comparison with Control group. In the quantity of serum total bilirubin and SGPT, both of Sample groups did not show any harmful change in in comparison with Control group. Conclusion : Reviewing these experimental results, it appeared that Harpagophyti Radix showed the therapeutic effect of anti-inflammatation on adjuvant arthritis.

• Advances in Traditional Medicine
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• 제9권4호
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• pp.335-338
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• 2009

Aerial parts of Sida rhombifolia Linn. (Malvaceae) were extracted successively using various solvents and screened for various parameters of antiarthritic activity such as adjuvant-induced arthritis, motor performance, and histopathological study. The ethanol and the aqueous extracts showed potent activity; further these extracts were fractionated by using column chromatography. The fraction ET1 isolated from ethanol extract showed the most potent antiarthritic activity.

• 대한약학회:학술대회논문집
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• 대한약학회 2000년도 NEW STRATEGY FOR DRUG DEVELOPMENT IN POST-GENOMIC ERA(대한약학회)
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• pp.236.1-236.1
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• 2000