• Title/Summary/Keyword: gout

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Anti-inflammatory and Analgesic Activities of the Root of Caragana koreana ("참골담초"근(根)의 소염(消炎) 및 진통작용(鎭痛作用)에 관(關)한 연구(硏究))

  • Hwang, Gyu-Jin;Kim, Il-Hyuk
    • Korean Journal of Pharmacognosy
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    • v.14 no.4
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    • pp.140-144
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    • 1983
  • The studies on the anti-inflammatory and analgesic activities were carried out to develop the domestic natural sources of the underground parts of Caragana koreana Nakai (Leguminosae), which have been used for the treatment of neuralgia, arthritis, and gout etc. in folk remedies. The methanol extract of the root was shown significant antiinflammatory effect in the paw edema induced by carrageenin, and also indicated remarkable preventive and therapeutic effects to chronic arthritis model induced by Freund's complete adjuvant in rats. It also has inhibited significantly the increase in vascular permeability and the number of writhings induced by acetic acid in mice.

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Inhibitory Effect of Probenecid on Osteoclast Formation via JNK, ROS and COX-2

  • Cheng, Mi Hyun;Kim, Sung-Jin
    • Biomolecules & Therapeutics
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    • v.28 no.1
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    • pp.104-109
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    • 2020
  • Probenecid is a representative drug used in the treatment of gout. A recent study showed that probenecid effectively inhibits oxidative stress in neural cells. In the present study, we investigated whether probenecid can affect osteoclast formation through the inhibition of reactive oxygen species (ROS) formation in RAW264.7 cells. Lipopolysaccharide (LPS)-induced ROS levels were dose-dependently reduced by probenecid. Fluorescence microscopy analysis clearly showed that probenecid inhibits the generation of ROS. Western blot analysis indicated that probenecid affects two downstream signaling molecules of ROS, cyclooxygenase 2 (COX-2) and c-Jun N-terminal kinase (JNK). These results indicate that probenecid inhibits ROS generation and exerts antiosteoclastogenic activity by inhibiting the COX-2 and JNK pathways. These results suggest that probenecid could potentially be used as a therapeutic agent to prevent bone resorption.

A Case of Colchicine Intoxication Presenting as Acute Gastroenteritis (위장관염으로 오인된 콜히친 중독 1례)

  • Ahn, Ji-Yun;Sohn, You-Dong;Kwon, Hyuk-Sool;Ahn, Hee-Chol
    • Journal of The Korean Society of Clinical Toxicology
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    • v.6 no.2
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    • pp.138-141
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    • 2008
  • A 47-year-old woman ingested about 12 mg of colchicine with suicidal intent. Colchicine, a highly poisonous alkaloid, is a commonly used treatment for gout, Bechet's disease, and familial Mediterranean fever. Despite the knowledge of its side effects, the risk of a significant overdose is under-appreciated. She suffered from acute multisystem toxicity, including gastrointestinal disorders, bone marrow suppression, alopecia, and probable pancreatitis, but she ultimately recovered with supportive therapy. We report a case of acute colchicine toxicity from a single overdose with a review of the literature.

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Etiology of Achilles Tendinopathy: Inflammation versus Overuse (아킬레스 건염? 염증이라고 다 같은 염증이 아니야)

  • Kim, Dae-Yoo;Lee, Dong Yeon
    • Journal of Korean Foot and Ankle Society
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    • v.25 no.2
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    • pp.61-65
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    • 2021
  • It is widely acknowledged that Achilles tendinopathy and resultant degeneration of the Achilles tendon could be either due to vigorous physical exertion or due to inflammation of the tendon associated with systemic disease. The overuse injuries are generally multifactorial in origin and are caused by repetitive strain of the affected tendon till the tendon can no longer endure the tensile stress. Various alignment and biomechanical faults are claimed to play a causative role. Only 2% of patients complaining of Achilles tendon pain are caused by systemic disease. However, to ensure the right approach to treatment, it is necessary to rule out inflammatory tendinitis caused by systemic diseases such as rheumatoid arthritis, gout, and seronegative spondyloarthrosis.

Colchicine poisoning

  • Lee, Ju-Seon;Choi, Hwak-Yung;Choi, Hye-Young;Woo, Sang-Hee;Park, Yoo-Sin;Chung, Hee-Sun
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.117.1-117.1
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    • 2003
  • Colchicine is a drug well known for its use in the therapy of acute attacks of gouty arthritis. Two death caused by oral ingestion of colchicine was reported. Two persons were all women. The one was 34 years old woman and with his boyfriend in a inn and the other was a housewife. The first one was a alcoholic but his boyfriend was afflicted with gout. So her boy friend carried over about 60 tablets of colchicine, 4 tablets of naltrexone and 22 tablets of fluoxetine. After her death there were remained colchicine, 2 tabs, naltraxone 4 tabs and fluoxetine 22 tabs. (omitted)

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Antibacterial Activity and Inhibitory Effect of Biofilm Formation by Actinidia polygama against S. mutans and P. gingivalis

  • Chung Mu Park;Hyun-Seo Yoon
    • Biomedical Science Letters
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    • v.29 no.2
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    • pp.88-94
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    • 2023
  • In oriental medicine, the fruit of Actinidia polygama has long been used to alleviate the symptoms of gout, arthritis, and inflammation. In this study, it was to designed to analyze the antibacterial activity of A. polygama ethanol extract (APEE) against Streptococcus mutans, one of the major strains for dental caries, and Porphyromonas gingivalis, one of the critical strains for periodontal disease. The antibacterial activity of APEE was analyzed by disk diffusion, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) assays. In addition, it was also analyzed the inhibitory effect of APEE on bacterial growth and biofilm formation against both oral pathogens. APEE exhibited its antibacterial effect through the inhibited bacterial diffusion as well as low concentration of MIC and MBC. In addition, APEE significantly inhibited not only bacterial growth but also biofilm formation in a dose-dependent manner. Consequently, APEE showed potent antibacterial activity against both S. mutans and P. gingivalis, which indicates that APEE might be used as a potential antibacterial material for the improvement of oral healthcare.

Colchicine Derivatives Allows Prolonged Survival of Cardiac Allograft in the Rat (백서에서의 동종이형의 심장이식후 Colchicine 변형 물질 투여군의 장기 변존)

  • Kim Young-Hak;Lee Hyung-Chang;Chung Won-Sang;Kang Jung-Ho;Kim Hyuck;Chon Sun-Ho;Shin Sung-Ho
    • Journal of Chest Surgery
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    • v.38 no.9 s.254
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    • pp.595-600
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    • 2005
  • Background: Colchicine with its immunosupressive properties has been used with benefcial effects in autoimmune disease, such as Gout, etc. Whether colchicine, by virtue of the above property, could attenuate the process of cardiac allograft rejection in the rats is investigated in this report. Material and Method: We compared the untreated group (Control, n=6), Cyclosporin A group (10 mg/kg, daily, n=20), and Colchicine derivative group (Colchicine 40 ${\mu}g$/kg, n=20) of cardiac allografts in the rats. Result: In the untreated control group (n=6), all of 6 rats showed rejection within 3 weeks after cardiac allograft. In the cyclosporin A group (n=20), cyclosporin A (10 mg daily oral dose) was administered at a 10 mg daily oral dose and promoted long-term survival (over 100 days). The cyclosporin A group had one mortality at the 18th post-operative day due to infection. Furthermore, in the Colchicine derivatives group (n=20) with a daily IP (Intra Peritoneum) dose (40 ug/kg/day), we observed long-term survival.(> 100 days), except for one rat that died of an anesthetic problem (respiratory failure) at the 9th post-operative day. Conclusion: Experiments have also been performed to evaluate whether the effect of colchicine derivatives allowed prolonged survival of cardiac allografts compared with the cyclosporin A administration group in the rats.

Experimental Studies on the Excretion of Uric acid in Rabbit (가토의 요산배설에 관한 실험적연구)

  • Hong, Yoon-Pyo
    • The Korean Journal of Pharmacology
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    • v.7 no.1
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    • pp.67-76
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    • 1971
  • The excretion of uric acid in man has been of great interest because of its importance as an end product in purine metabolism as well as of its role in causing gout. There are many differences in the modes of renal handling of urate among various species of animals. Uric acid actively secreted by the renal tubules of most vertebrate including amphibians, reptiles, and birds. On the other hand, in most mammals net tubular reabsorption of urate appears to be occurred with some exception, such, as Dalmatian dog. In the rabbits, however, the mechanism of renal excretion of uric acid has long been a subject of controversial results. Within a given group it was possible to find individuals with either net secretion or net reabsorption of urate depend on the experimental conditions. Excretion of urate can be depressed or enhanced by a variety of drugs belonging mainly to the aromatic acid group. Diodrast, probenecid, cinchophen and salicylates have been reported as uricosuric agents, on the other hand, lactate, benzoate, pyrazinoic acid, acetazolamide and chlorothiazide are known to be contraindicated to use for the patient with gout since these agents depress the excretion of uric acid from the kidney. However, complex and sometimes the paradoxical effects on the urate excretion by those above mentioned drugs are not uncommon. The experiments were designed to investigate the mechanisms of renal handling of urate as well as the effects of variety of drugs on the tubular transport of uric acid in the rabbits. Male or female white rabbits, from 1.5 to 2.5 kg in weight, were used. The experimental methods used in these studies were clearance, stop-flow, and retrograde injection techniques. The effects of saline, salicylate, chlorothiazide and probenecid were investigated in each experimental conditions. Results of the experiments were summarized as follows; 1. In the rabbits, the rate of urate clearance was always lower than the rate of inulin clearance. The filtration fraction of the urate was one third on an average, therefore, it is estimated that approximately two thirds of filtered urate was reabsorbed. 2. In the kidneys of rabbits, the urate clearance was increased significantly by administration of chlorothiazide and decreased by probenecid. The administration of salicylate had no effect on the rate of urate clearance. The filtration fraction of urate was increased by chlorothiazide and decreased by probenecid. 3. In the stop-flow studies, the U/P ratio of urate was higher than the U/P ratio of inulin in the proximal region, indicating the secretion of uric acid in the proximal tubules. The proximal peak was increased by chlorothiazide and inhibited by probenecid.4. In the retrograde injection studies, the reabsorption of urate in the proximal region was observed, and these reabsorptive transport of urate was depressed by either probenecid or by chlorothiazide. 5. No distal tubular activity was observed under any of these experimental conditions concerning urate transport. The results of these experiments show that probenecid inhibits both secretory and reabsorptive transport of uric acid in the kidney of the rabbits. The enhancement of secretory transport of urate by chlorothiazide in the clearance study was due to the secondary action of chlorothiazide which inhibits the reabsorptive transport of urate in the proximal tubules. It is evident that the urate transport in the kidneys of rabbits is bidirectional nondiffusive flux both secretory and reabsorptive directions in the proximal tubules.

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Biological activity of St. John's wort (Hypericum perforatum L.) (St. John's wort(Hypericum perforatum L.)의 생리활성 효과)

  • Cho, Young-Je;Chun, Sung-Sook;Yoon, So-Jung;Kim, Jeung-Hoan
    • Applied Biological Chemistry
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    • v.48 no.1
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    • pp.65-69
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    • 2005
  • The physiological activity of St. John's wort extracts were examined. Total phenol contents in the ethanol extracts $(246.0{\pm}10.5\;{\mu}g/ml)$ with St. John's wort leaf was higher than that in water extract $(237.4{\pm}13.2\;{\mu}g/ml)$. The electron donating ability in the water extracts and in the ethanol extracts were 95.0% and 95.2% respectively. Antioxidant protection factor of the ethanol extract was higher than that of the water extract. The water extract from St. John's wort leaves did not show an antimicrobial activity against Helicobacter pylori, but the ethanol extract revealed high antimicrobial activities such as 11 mm of clear zone in $100\;{\mu}g/ml$ of phenol content and 13 mm of clear zone in $150\;{\mu}g/ml$ of phenol content. The hot water extract showed an angiotensin converting enzyme inhibitory activity of 19.2%. The xanthin oxidase inhibitory activity of hot water and ethanol extract were very high, amounting to 84.8% and 100% respectively. The results suggested a possibility for developing the phenol compounds in St. John's wort as anti Helicobacter pylori, anti-oxidant and anti-gout agents.

Development of Knee Pain Diagnosis Questionnaire and Clinical Study of Diagnostic Correspondent Rate (슬통 진단용 설문지개발 및 진단 일치도 평가연구)

  • Hwang, Ji-Hoo;Kim, Yu-Jong;Kim, Eun-Jung;Lee, Cham-Kyul;Lee, Eun-Yong;Lee, Seung-Deok;Kim, Kap-Sung
    • Journal of Acupuncture Research
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    • v.29 no.5
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    • pp.61-74
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    • 2012
  • Objectives : This study is perfomed for preparation of oriental medicine clinical guidelines for drawing up the standards of oriental medicine demonstration and diagnosis classification about the knee pain. Methods : Statistical analysis about Crane's-knee wind(鶴膝風), arthralgia syndrome(痺症), knee injury(膝傷), gout arthritis(痛風), Youk jeol poung(歷節風) classified experts' opinions about knee pain patients by Delphi method is conducted by using oriental medicine diagnosis questionnaire. The result was classified by using linear discriminant analysis(LDA), diagonal linear discriminant analysis(DLDA), diagonal quadratic discriminant analysis(DQDA), K-nearest neighbor classification(KNN), classification and regression trees(CART), support vector machines(SVM). Results : The results are summarized as follows. 1. The result analyzed by using LDA has a hit rate of 81.65% in comparison with the original diagnosis. 2. The result analyzed by using DLDA has a hit rate of 63.3% in comparison with the original diagnosis. 3. The result analyzed by using DQDA has a hit rate of 65.14% in comparison with the original diagnosis. 4. The result analyzed by using KNN has a hit rate of 74.31% in comparison with the original diagnosis. 5. The result analyzed by using CART has a hit rate of 75.23% in comparison with the original diagnosis when the test of selected 13 significant questions based on analysis of variance was performed. 6. The result analyzed by using SVM has a hit rate of 87.16% in comparison with the original diagnosis. Conclusions : Statistical analysis using oriental medicine diagnosis questionnaire on knee pain generally turned out to have a significant result.