Journals / Turkish Journal of Gastroenterology / 2011 / Cilt: 22 - Sayı: 4

Dekstran sülfat sodyum ile oluşturulan deneysel kolitte dört farklı moleküler ağırlıkta Kurozu fraksiyonunun teropötik etkisi

Therapeutic effects of four molecular-weight fractions of Kurozu against dextran sulfate sodium-induced experimental colitis

Pages
376–381
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusions: The major protective components in Kurozu appear to have molecular weights in the range of 800~4,000 daltons, and their action appears to be related, at least in part, to anti-oxidative and anti-nitration effects.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Background/aims: Kurozu has been reported to ameliorate colitis in mice and to have an anti-oxidative effect.
📊
Key Findings & Data:Methods: Kurozu was divided into 4 molecular-weight fractions (fraction I, >4,000 daltons; II, 2,000~4,000 daltons; III, 800~2,000 daltons; IV, <800 daltons).
💡
Conclusion & Impact:Conclusions: The major protective components in Kurozu appear to have molecular weights in the range of 800~4,000 daltons, and their action appears to be related, at least in part, to anti-oxidative and anti-nitration effects.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background/aims: Kurozu has been reported to ameliorate colitis in mice and to have an anti-oxidative effect. However, the active components and mechanism of action remain unknown. Here, as a first step to identify the active components, we chromatographically fractionated Kurozu and investigated the anti-colitis activity of the fractions, focusing on anti-nitration activity. Methods: Kurozu was divided into 4 molecular-weight fractions (fraction I, >4,000 daltons; II, 2,000~4,000 daltons; III, 800~2,000 daltons; IV, <800 daltons). Forty C57black6 mice were divided into 5 groups as follows: the control group received standard CE-2 diet, and Groups I~IV received CE-2 diet containing Kurozu fractions I~IV, respectively. Dextran sulfate sodium was administered to the mice for 12 days to induce colitis. Body weight and bloody stool frequency were monitored as indices of severity of colitis after administration of dextran sulfate sodium, and at 12 days, all mice were sacrificed for examination of colonic pathology and nitrotyrosine production in the colon tissues. Results: Colitis was markedly ameliorated in Group III, followed by Group II, while Group IV showed little difference from the control. The colonic nitrotyrosine level in Group III was significantly reduced compared with the control. Conclusions: The major protective components in Kurozu appear to have molecular weights in the range of 800~4,000 daltons, and their action appears to be related, at least in part, to anti-oxidative and anti-nitration effects.

Özet

Amaç: Kurozu'nun farelerde koliti düzelttiği ve anti-oksidan etkileri olduğu rapor edilmiştir. Ancak, içeriğindeki aktif madde ve etki mekanizması bilinmemektedir. Burada, aktif içeriğinin tespit edilmesinde ilk basamak olarak, Kurozu'nun kromatografik olarak ayrıştırılması ile elde edilen kimyasalların kolite karşı olan etkileri incelenmiş ve özellikle nitrasyona karşı olan aktivitenin üzerinde durulmuştur. Yöntem: Kurozu molekül ağırlığına göre dörde ayrıştırılmıştır (Fraksiyon I: >4000 dalton; II: 2000-4000 dalton; III: 800-2000 dalton; IV:<800 dalton). Kırk adet C57black6 faresi; standard CE-5 diyetini alan kontrol grubu ve Kurozu fraksiyonlarını içeren CE-5 diyeti alan dört grup olmak üzere (sırasıyla grup I-IV) beşe bölünmüştür. Kolit gelişmesi için farelere 12 gün boyunca dekstran sodyum sülfat uygulanmıştır. Farelerin ağırlıkları ve kanlı ishal sıklığı indüklenen kolitin şiddetinin tespit edilmesi amacı ile takip edilmiş; 12. günde tüm fareler sakrifiye edilmiş ve patolojik inceleme ve nitrotirozin düzeyinin araştırılması amacı ile kolon dokusu örnekleri alınmıştır. Bulgular: Sırasıyla, grup III ve II'de kolitin belirgin olarak önlendiği, ancak grup IV ile kontrol grubu arasında çok hafif bir fark olduğu gözlemlenmiştir. Kolon dokusunda nitrotirozin seviyesi grup III'de kontrole göre anlamlı olarak düşük bulunmuştur. Sonuç: Kurozu'nun bileşenlerinden koruyucu olanlarının moleküler ağırlıkları 800-4000 dalton arasındadır ve bu etkisi; en azından kısmen, anti-oksidatif ve anti-nitrasyon etkinliğine bağlıdır.

🔖

Cite This Article

SHIZUMA, T., NAGANO, M., FUJII, A., MORI, H., FUKUYAMA, N. (2011). Dekstran sülfat sodyum ile oluşturulan deneysel kolitte dört farklı moleküler ağırlıkta Kurozu fraksiyonunun teropötik etkisi. Turkish Journal of Gastroenterology, Cilt: 22 - Sayı: 4, 376–381. https://ajindex.com/articles/409721

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (16)

  1. Nanda K, Miyoshi N, Nakamura Y, et al. Extract of vinegar “Kurosu” from unpolished rice inhibits the proliferation of human cancer cells. J Exp Clin Cancer Res 2004; 23: 69-75
  2. Shimoji Y, Kohno H, Nanda K, et al. Extract of Kurosu, a vinegar from unpolished rice, inhibits azoxymethane-induced colon carcinogenesis in male F344 rats. Nutr Cancer 2004; 49: 170-3
  3. Shizuma T, Ishiwata K, Nagano M, et al. Protective effects of Kurozu and Kurozu moromimatsu on dextran sulfate sodium-induced experimental colitis. Dig Dis Sci (in press)
  4. Babbs CF. Oxygen radicals in ulcerative colitis. Free Radic Biol Med 1992; 13: 169-81
  5. Elson CO, Sartor RB, Tennyson GS, Riddell RH. Experimental models of inflammatory bowel disease. Gastroenterology 1995; 109: 1344-67
  6. Ahmad R, Rasheed Z, Ahsan H. Biochemical and cellular toxicology of peroxynitrite: implications in cell death and autoimmune phenomenon. Immunopharmacol Immunotoxicol 2009; 31: 388-96
  7. Eiserich JP, Hristova M, Cross CE, et al. Formation of nitric oxide-derived inflammatory oxidants by myeloperoxidase in neutrophils. Nature 1998; 22: 393-7
  8. Nishidai S, Nakamura Y, Torikai K, et al. Kurosu, a traditional vinegar produced from unpolished rice, suppresses lipid peroxidation in vitro and in mouse skin. Biosci Biotechnol Biochem 2000; 64: 1909-14
  9. Tomita T, Kanai T, Fujii T, et al. MyD88-dependent pathway in T cells directly modulates the expansion of colitogenic CD4+T cells in chronic colitis. J Immunol 2008; 15: 5291-9
  10. Ohtake K, Koga M, Uchida H, et al. Oral nitrite ameliorates dextran sulfate sodium-induced acute experimental colitis in mice. Nitric Oxide 2010; 23: 65-73
  11. Yamakura F, Ikeda K. Modification of tryptophan and tryptophan residues in proteins by reactive nitrogen species. Nitric Oxide 2006; 14: 152-61
  12. Cross RK, Wilson KT. Nitric oxide in inflammatory bowel disease. Inflamm Bowel Dis 2003; 9: 179-89
  13. Faure M, Mettraux C, Moennoz D, et al. Specific amino acids increase mucin synthesis and microbiota in dextran sulfate sodium-treated rats. J Nutr 2006; 136: 1558-64
  14. Fujimori S, Gudis K, Mitsui K, et al. A randomized controlled trial on the efficacy of synbiotic versus probiotic or prebiotic treatment to improve the quality of life in patients with ulcerative colitis. Nutrition 2009; 25: 520-5
  15. Fukuda Y, Tao Y, Tomita T, et al. A traditional Japanese medicine mitigates TNBS-induced colitis in rats. Scand J Gastroenterol 2006; 41: 1183-9
  16. Sabater-Molina M