Journals / Anadolu Kardiyoloji Dergisi / 2010 / Cilt: 10 - Sayı: 5

Hipertansiyonu olan hastalarda egzersize kan basıncı cevabı üzerine α-addusin gen polimorfizminin etkisi

The influence of α-adducin gene polymorphism on response of blood pressure to exercise in patients with hypertension

Pages
400–404
Publication Date
2022-10-10
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: Our results suggest that genetic variants that alter renal function and/or vasoreactivity are logical candidates to explain some of the individual variability in the BP response to exercise.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective:Clinical studies have indicated that an excessive response of blood pressure (BP) to exercise predicts risk of cardiovascular mortality.
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Key Findings & Data:Carriers of the Trp460 allele of the α-adducin Gly460Trp polymorphism have an increased risk of hypertension.
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Conclusion & Impact:Conclusion: Our results suggest that genetic variants that alter renal function and/or vasoreactivity are logical candidates to explain some of the individual variability in the BP response to exercise.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective:Clinical studies have indicated that an excessive response of blood pressure (BP) to exercise predicts risk of cardiovascular mortality. Although the mechanism responsible for the excessive BP response to exercise has not been revealed, there are some plausible mechanisms linking with underlying structural abnormalities in the cardiovascular system. Carriers of the Trp460 allele of the α-adducin Gly460Trp polymorphism have an increased risk of hypertension. The aim of the present study was to examine the influence of α-adducin gene polymorphism on response of BP to exercise in patients with hypertension. Methods: The cross-sectional observational study consisted of 49 hypertensive patients (29 women and 20 men; mean age, 53.1±8.8 years). All participants underwent a multistage exercise treadmill test according to the Bruce protocol. Arterial BPs were compared at rest, peak exercise and end of the recovery phase. Patients were classified according to their α-adducin gene polymorphisms; Gly460Gly homozygotes - Group 1 (n=28) and Trp460Trp homozygotes and Gly460Trp heterozygotes - Group 2 (n=21). Statistical analysis was performed using Chi-square, unpaired t, Mann-Whitney U and ANCOVA tests. Results: Mean exercise duration and mean exercise capacity in metabolic equivalents were not different between Group 1 and 2. The major finding of the study was that systolic BP responses at peak exercise and recovery period (3. min) were significantly higher (p=0.036) in hypertensive patients carrying at least one Trp460 allele of the α-adducin gene. Conclusion: Our results suggest that genetic variants that alter renal function and/or vasoreactivity are logical candidates to explain some of the individual variability in the BP response to exercise.

Özet

Amaç:Egzersize cevap olarak aşırı kan basıncı yükselmesinin kardiyovasküler mortalitenin öngördürücüsü olduğu gösterilmiştir. Buna ilişkin mekanizmalar net olarak ortaya konmamış olsa da, altta yatan mekanizmaların kardiyovasküler sistemin yapısal anormallikleri ile ilgili olması muhtemeldir. Alfa addusin geni Gly460Trp polimorfizmi gösteren ve Trp460 alleli taşıyıcılarında artmış hipertansiyon riski söz konusudur. Bu çalışmada, hipertansif hastalarda α-addusin gen polimorfizminin egzersize olan kan basıncı cevabına etkisi araştırıldı. Yöntemler: Vaka-kontrollü, enine-kesitsel çalışmaya 49 hipertansif hasta (29 kadın ve 20 erkek; ortalama yaş 53.1±8.8 yıl) alındı. Tüm hastalara Bruce protokolüne göre egzersiz stres testi uygulandı. İstirahat, pik ve toparlanma sonu fazlarında elde edilen arteryel kan basıncı değerleri karşılaştırıldı. Hastalar α-addusin gen polimorfizmlerine göre sınıflandırıldı; Grup 1 Gly460Gly homozigot (n=28), Grup 2 ise Trp460Trp homozigot ve Gly460Trp heterozigottu (n=21). İstatistiksel analizde Ki-kare, eşleştirilmemiş t, Mann-Whitney U ve ANCOVA testleri kullanıldı. Bulgular: Ortalama egzersiz süre ve kapasiteleri her iki grupta benzer düzeylerdeydi. Alfa addusin geni için en az bir Trp460 alleli taşıyan hipertansif hastalarda, pik ve toparlanma sonu (3. dk) sistolik kan basınçlarında artmış bir cevap saptandı (p=0.036). Sonuç: Bulgularımız egzersize olan kan basıncı cevaplarındaki bireysel değişkenlikleri açıklamada, renal fonksiyonları ve/veya vazoreaktiviteyi değiştiren genetik varyasyonların etkili olabileceğini desteklemektedir.

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Cite This Article

ERCAN, E., TENGİZ, İ., AKGÖZ, S., ALİOĞLU, E., TÜRK, U. Ö., ERGÜN, M., İŞLEGEN, Ç., BERDELİ, A. (2022). Hipertansiyonu olan hastalarda egzersize kan basıncı cevabı üzerine α-addusin gen polimorfizminin etkisi. Anadolu Kardiyoloji Dergisi, Cilt: 10 - Sayı: 5, 400–404. https://ajindex.com/articles/436827

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