Journals / KBB-Forum / 2005 / Cilt: 4 - Sayı: 3

Nitric oxide levels of nasal mucosa and nasal polyp tissues

Nazal mukoza ve nazal polip dokularında nitrik oksit düzeyleri

Journal
KBB-Forum
Pages
136–139
DOI
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AI Summary & Key Takeaways

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

Excess formation of NO may have a role in the development or maintenance of the disease but further studies are needed to elucidate the role of NO in NP.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Nasal polyp (NP) is a chronic inflammatory disease of the sinuses, pathophysiology of which is still unknown clearly.
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Key Findings & Data:Methods: Tissue specimens were obtained from 23 patients undergone endoscopic sinus surgery for nasal polyposis and 14 patients (as a control group) undergone septoplasty and turbinoplasty for septal deviation and lower turbinate hypertrophy.
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Conclusion & Impact:Excess formation of NO may have a role in the development or maintenance of the disease but further studies are needed to elucidate the role of NO in NP.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Spektrofotometri · Burun mukozası · Nazal polipler

Abstract

Objective: Nasal polyp (NP) is a chronic inflammatory disease of the sinuses, pathophysiology of which is still unknown clearly. Chronic inflammation may lead to the production of various metabolites including NO. NO, along with its many essential roles in immunity and host defence, can also undergo reactions that may result in cytotoxic or mutagenic effects leading to direct DNA damage. The aim of the study was to investigate nitric oxide (NO) level in nasal polyps and normal mucosa. Methods: Tissue specimens were obtained from 23 patients undergone endoscopic sinus surgery for nasal polyposis and 14 patients (as a control group) undergone septoplasty and turbinoplasty for septal deviation and lower turbinate hypertrophy. All tissue specimens obtained were washed with physiological saline to remove blood. Tissues were homogenized and then centrifuged, and supernatants were used for NO measurement. NO level was measured as total nitrit by the method of Griess spectrophotometrically. For statistical analysis, Mann-Whitney U-test was used. Results: Mean NO level was found to be 0.0718 ± 0.0125 µmol/mg protein in polyps and 0.0418 ± 0.0060 µmol/mg protein in control nasal mucosa. In patients with NP, mean tissue NO levels were significantly higher than those of control nasal mucosa (P<0.05). Conclusion: The present study showed significant increase in NO level in NP tissues compared to control. Excess formation of NO may have a role in the development or maintenance of the disease but further studies are needed to elucidate the role of NO in NP.

Özet

Amaç: Nazal polipozis (NP) paranazal sinüslerin kronik inflamatuvar bir hastalığı olup patofizyolojisi halen tam olarak bilinmemektedir. Kronik inflamasyon, nitrik oksit (NO) gibi çeşitli metabolitlerin oluşumuna yol açmaktadır. NO immünite ve vücut savunmasındaki temel rollerinin yanında DNA hasarına yol açabilen mutajenik ve sitotoksik etkiler gösterebilmektedir. Bu çalışmanın amacı, nazal polip ve kontrol dokularında NO düzeylerini araştırmaktır. Metot: Dokular, endoskopik sinüs cerrahisi uygulanan 23 nazal polipozisli olgu ve septum deviasyonu ve konka hipertrofisi nedeni ile septoplasti ve konkaplasti uygulanan 14 olgudan alındı. Alınan dokular serum fizyolojik ile yıkanarak kan artıkları temizlendi. Dokular homojenize edildikten sonra satrifüje edildi ve NO ölçümü için süpernatan kullanıldı. Nitrik oksit düzeyi total nitrit olarak Griess metodu ile spektrofotometrik olarak ölçüldü. İstatistik analiz için Mann-Whitney U-testi kullanıldı. Bulgular: Ortalama NO düzeyi, nazal polip dokularında 0,0718 ± 0,0125 µmol/mg protein ve kontrol dokularında 0.0418 ± 0.006 µmol/mg protein olarak bulundu (p<0.05). Sonuç: Çalışmamızda nazal polip dokularında NO düzeyinin kontrollere göre anlamlı olarak yüksek olduğu saptandı. Artmış NO oluşumunun hastalığın oluşumunda ve devamında bir rolü olabilir ancak NO’un NP’lerdeki rolünü aydınlatmak ileri çalışmalara ihtiyaç vardır.

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Cite This Article

OKUR, E., İNANÇ, F., YILDIRIM, İ., KILIÇ, M. A., KILINÇ, M. (2005). Nitric oxide levels of nasal mucosa and nasal polyp tissues. KBB-Forum, Cilt: 4 - Sayı: 3, 136–139. https://ajindex.com/articles/209366

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References (15)

  1. Nathan C, Xie QW. Regulation of biosynthesis of nitric oxide. J Biol Chem. 1994
  2. 269(19):13725-13728. [ Özet ] 2) Moncada S, Higgs A. The L-arginine-nitric oxide pathway. N Engl J Med. 1993
  3. 329(27):2002-2012. [ Özet ] 3) Nathan C. Inducible nitric oxide synthase: what difference does it make? J Clin Invest 1997
  4. 100(10):2417-2423. [ Özet ] 4) Lundberg JO, Rinder J, Weitzberg E, Lundberg JM, Alving K. Nasally exhaled nitric oxide in humans originates mainly in the paranasal sinuses. Acta Physiol Scand 1994
  5. 152(4):431-432. [ Özet ] 5) Lundberg JO, Farkas-Szallasi T, Weitzberg E, Rinder J, Lidholm J, AnggaardA, Hokfelt T, Lundberg JM, Alving K. High nitric oxide production in human paranasal sinuses. Nat Med 1995
  6. 1(4):370-373. [ Özet ] 6) Nathan C. Nitric oxide as a secretory product of mammalian cells. FASEB J 1992
  7. 6(12):3051-3064. [ Özet ]. 7) Sanders SP, Siekierski ES, Richards SM, Porter JD, Imani F, Proud D. Rhinovirus infection induces expression of type 2 nitric oxide synthase in human respiratory epithelial cells in vitro and in vivo. J Allergy Clin Immunol 2001
  8. 107(2):235-243. [ Özet ] 8) Arnal JF, Flores P, Rami J, Murris-Espin M, Bremont F, Pasto I Aguilla M, Serrano E, Didier A. Nasal nitric oxide concentration in paranasal sinus inflammatory diseases. Eur Respir J 1999
  9. 13(2):307-312. [ Özet ] 9) Nguyen T, Brunson D, Crespi CL, Penman BW, Wishnok JS, Tannenbaum SR. DNA damage and mutation in human cells exposed to nitric oxide in vitro. Proc Natl Acad Sci U S A 1992
  10. 89(7):3030-4. [ Özet ] 10) Wink DA, Kasprzak KS, Maragos CM, Elespuru RK, Misra M, Dunams TM, Cebula TA, Koch WH, Andrews AW, Allen JS, Keefer LK. DNA deaminating ability and genotoxicity of nitric oxide and its progenitors. Science 1991
  11. 254(5034):1001-1003. [ Özet ] 11) Cortas NK, Wakid NW. Determination of inorganic nitrate in serum and urine by a kinetic cadmium-reduction method. Clin Chem 1990
  12. [ Özet ] 12) Lowry OH, Rosebrough NJ, Farr A, Randall R. Protein measurement with the folin phenol reagent. J Biol Chem 1951
  13. [ Özet ] 13) Gibaldi M. What is nitric oxide and why are so many people studying it? J Clin Pharmacol 1993
  14. 33(6):488-496. [ Özet ] 14) Archer S. Measurement of nitric oxide in biological models. FASEB J 1993
  15. 7(2):349-360. [ Özet ] 15) Kim JW, Min YG, Rhee CS, Lee CH, Koh YY, Rhyoo C, Kwon TY, Park SW. Regulation of mucociliary motility by nitric oxide and expression of nitric oxide synthase in the human sinus epithelial cells. Laryngoscope