Journals / Gülhane Tıp Dergisi / 2011 / Cilt: 53 - Sayı: 4

Determination of erythrocyte catalase and carbonic anhydrase activities in patients with coronary artery disease

Koroner arter hastalarında eritrosit katalaz ve karbonik anhidraz enzim aktivitelerinin belirlenmesi

Pages
254–257
DOI
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⚡ TL;DR(Too Long; Didn't Read)

It may be concluded that acid-base balance in the erythrocytes is disordered with the decreasing CA enzyme activities of patients with coronary artery disease.

📌 3 Key Takeaways

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Objective & Hypothesis:Free oxygen radicals or reactive oxygen species are accepted to have an active role in the patogenesis of coronary artery disease.
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Key Findings & Data:Thirty five patients with coronary artery disease including 10 women and 25 men were enrolled in this study performed in order to determine the activities of catalase (CAT) and carbonic anhydrase (CA) in patients with coronary artery disease.
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Conclusion & Impact:It may be concluded that acid-base balance in the erythrocytes is disordered with the decreasing CA enzyme activities of patients with coronary artery disease.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Free oxygen radicals or reactive oxygen species are accepted to have an active role in the patogenesis of coronary artery disease. Thirty five patients with coronary artery disease including 10 women and 25 men were enrolled in this study performed in order to determine the activities of catalase (CAT) and carbonic anhydrase (CA) in patients with coronary artery disease. Control group included 33 individuals, seven women and 26 men, with normal angiograms. CAT and CA enzyme activities in red blood cell samples of patients and control subjects were measured with spectrophotometry (with Aebi method) and carbon dioxide hydration method, respectively, and compared statistically. CAT values were 13.09±4.74 EU/gHb and 21.30±17.99 EU/gHb-1 and CA enzyme activities were 0.75±0.28 EU/gHb and 2.06±0.24 EU/gHb in patients with coronary artery disease and control subjects, respectively. The erythrocyte CAT and CA enzyme activities in the patient group were statistically significantly lower than those of the control group (p=0.015, p<0.001). It may be concluded that acid-base balance in the erythrocytes is disordered with the decreasing CA enzyme activities of patients with coronary artery disease. The lower levels of CAT enzyme activity which is a protective enzyme against free radical damage may be due to the oxidative stress from which the patients suffered, and manipulations toward erasing this stress may be effective in the prevention and treatment of the disease.

Özet

Serbest oksijen radikalleri veya reaktif oksijen türlerinin koroner arter hastalığının patogenezinde rol oynadığı kabul edilmektedir. Koroner arter hastalarında katalaz (CAT) ve karbonik anhidraz (CA) aktivitelerini belirlemek amacıyla yapılan bu çalışmaya 10 kadın ve 25 erkek olmak üzere 35 koroner arter hastası katıldı. Kontrol grubu anjiyogramı normal olan yedi kadın ve 26 erkek olmak üzere 33 bireyden oluşturuldu. Hasta ve kontrol gruplarının eritrosit örneklerinde CAT enzim aktivitesi Aebi yöntemine göre spektrofotometre ile, CA enzim aktivitesi ise karbondioksid hidrasyon yöntemiyle ölçüldü ve istatistiksel olarak karşılaştırıldı. Koroner arter hastaları ve kontrol bireylerinin CAT değerleri sırasıyla 13.09±4.74 EU/gHb ve 21.30±17.99 EU/gHb-1 iken, CA enzim aktiviteleri ise 0.75±0.28 EU/gHb ve 2.06±0.24 EU/gHb olarak tespit edildi. Hasta gruptaki bireylerin eritrosit CAT ve CA enzim aktiviteleri kontrol bireylere göre anlamlı derecede düşük bulundu (p=0.015, p<0.001). Bu sonuçlara göre, koroner arter hastalarının CA enzim aktivitelerinin düşmesiyle eritrositlerdeki asid-baz dengesinin bozulduğu söylenebilir. Koroner arter hastalarında serbest radikal hasarına karşı koruyucu bir enzim olan CAT enzim aktivitesinin normalden düşük bulunmasının hastalık sürecinde hastaların oksidatif strese maruz kalmasına bağlı olabileceği, bu stresi ortadan kaldırabilecek girişimlerin hastalığın önlenmesinde ve tedavisinde etkili olabileceği sonucuna varıldı.

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Cite This Article

ÇEBİ, A., KAYA, Y., DEMİR, H. (2011). Determination of erythrocyte catalase and carbonic anhydrase activities in patients with coronary artery disease. Gülhane Tıp Dergisi, Cilt: 53 - Sayı: 4, 254–257. https://ajindex.com/articles/225385

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