Ассоциация генов бета-адренорецепторов, коннексина-40 и калиевого канала kcnh2с гипертрофией миокарда левого желудочка у больных гипертонической болезнью
Л.О. Минушкина
Е.С. Горшкова
А.Н. Бровкин
В.А. Бражник
В.В. Носиков
Д.А. Затейщиков
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Ключевые слова

гипертрофия миокарда
гипертоническая болезнь

Как цитировать

Минушкина Л., Горшкова Е., Бровкин А., Бражник В., Носиков В., Затейщиков Д. Ассоциация генов бета-адренорецепторов, коннексина-40 и калиевого канала kcnh2с гипертрофией миокарда левого желудочка у больных гипертонической болезнью // КРЕМЛЕВСКАЯ МЕДИЦИНА<br><i>клинический вестник</i&gt;. 2014. Т. № 2. С. 26-30.
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Аннотация

Целью нашего исследования было изучить ассоциацию полиморфных маркеров генах коннексина 40 (CX40)потенциал-зависимого калиевого канала (KCNH2), бета-адренорецепторов 1, 2 и 3 типа (ADRB1, ADRB2, ADRB3) соструктурными и функциональными особенностями миокарда левого желудочка у больных гипертонической болезнью.Обследовано 177 больных гипертонической болезнью (83 (46,9%) мужчины и 94 (53,1%) женщины). Среднийвозраст – 60,6±0,76 лет. В обследованной группе было 19 (10,9%) больных с АГ I степени, 57 (32,8%) больных с АГII степени и 101 (56,3%) – с АГ III степени. Структурные особенности миокарда левого желудочка исследовались спомощью эхокардиографии.В обследованной группе оказалось 55 больных без признаков ГЛЖ и 122 больных с увеличением ИММЛЖ.Больные с гипертрофией миокарда ЛЖ были старше (62,8±0,88 лет и 52,9±1,49 лет соотв., р = 0,001), имели большуюдлительность ГБ (16,0±1,07 лет и 10,7±1,44 лет, р = 0,018), более высокий уровень систолического АД (202,7±2,51мм.рт.ст. и 181,6±3,79 мм.рт.ст., р = 0,008) и больший индекс массы тела (29,4±0,41 кг/м2 и 26,6±0,57 кг/м2 , р =0,001). Среди больных с ГЛЖ было больше женщин (57,7% и 37,5%, р = 0,025) и больше больных с сахарным диабетомтипа 2 (17,5% и 5,0%, р = 0,040).Достоверные различия в частотах генотипов изученных генов-кандидатов были выявлены для полиморфногомаркера Gly389Arg гена ADRB1 – в группе больных с ГЛЖ частота генотипа Arg/Arg была достоверно выше, чем средибольных без ГЛЖ (OR 2,32 [1,34–4,11]). В группе больных с ГЛЖ частота генотипа Thrк/Thr полиморфного маркераLys897Thr в гене KCNH2 была достоверно выше (OR 5.35[1.50–19.12]), чем среди больных без ГЛЖ.Ключевые слова: гипертрофия миокарда, гипертоническая болезнь.The purpose of our trial was to study association of polymorphous markers of genes Connexin-40 (CX40) potential-dependentpotassium channel (KCNH2), b-adrenoreceptors of types 1, 2 and 3 (ADRB1, ADRB2, ADRB3) with structural andfunctional peculiarities of left myocardial ventricle in patients with hypertensive disease.177 patients with hypertensive disease (83 (46.9%) men and 94 (53.1%)women) were examined. Average agewas 60.6±0.76. In the study group there were 19 (10.9%) patients with arterial hypertension (AH) of stage I, 57 (32.8%)patients with AH stage II and 101 (56.3%) patients with AH stage III. Structural peculiarities of the left myocardial ventriclewere studied with echocardiography.In the study group there were 55 patients without hypertrophy of the left ventricle (HLV) and 122 patients with the increasedmass index of the left ventricle. Patients with hypertrophy of left myocardial ventricle were older (62.8±0.88 years oldand 52.9±1.49 years old, correspondingly, р = 0.001); they had longer history of hypertensive disease (16.0±1.07years and10.7±1.44 years, р = 0.018), higher level of systolic AP (202.7±2.51 mm Hg and 181.6±3.79 mm Hg, р = 0.008) and largerbody weight index (29.4±0.41 kg/m2 and 26.6±0.57 kg/m2 , р = 0.001). Women were more numerous among patients withHVL (57.7% and 37.5%, р = 0.025 and among patients with diabetes mellitus 2 (17.5% and 5.0%, р = 0.040).Reliable differences in occurrence of gene types of the studied gene-candidates were found out for polymorphous markerGly389Arg of gene ADRB1 – in patients with HVL occurrence of genotype Arg/Arg was reliably higher than among patientswithout HLV (OR 2.32 [1.34–4.11]). In the group of patients with HVL occurrence of genotype Thrк/Thr of polymorphousmarkers Lys897Thr in gene KCNH2 was reliably higher (OR 5.35[1.50–19.12]) than among patients without HVL.Key words: myocardial hypertrophy, hypertensive disease.
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