Aim. To search for causal mutations in candidate genes responsible for the development of sudden cardiac death (SCD) in men who died under the age of 45.Material and methods. The SCD group (n=37) was formed using the criteria the World Health Organization and the European Society of Cardiology. Autopsy material was collected from men who died suddenly outside medical institutions and underwent forensic medical examination according to the standard protocol. Autopsy revealed no morphological changes that could explain sudden death. The mean age was 32,4±6,4 years. Genomic DNA was isolated from myocardial tissue using phenol-chloroform extraction. Clinical exome sequencing was performed. At first, we analyzed the results of sequencing of 24 genes, mutations in which lead to cardiovascular diseases associated with an increased risk of SCD: KCNQ1, KCNH2, SCN5A, AKAP9, ANK2, CACNA1C, CALM1, CALM2, CAV3, KCNE1, KNCJNE2, KCNE2, SCN4B, SNTA1, MYH2, APOB, KCNA5, TGFB3, NEB, PDX1, FLNC, PLEC, KCND3.Results. Of 37 samples, we revealed 13 probable pathogenic missense mutations in 9 samples (24,3%). Of 13 probable pathogenic variants, 5 were new.Conclusion. This pilot study provides following conclusions: it is necessary to continue molecular autopsy research in Russia; to increase the effectiveness of detecting causal mutations, it is necessary to reduce the age of patients with SCD included in the study; studying the families of deceased; cooperation of experienced specialists — forensic pathologist, laboratory geneticist, cardiologist.
Цель. Проверить однонуклеотидные полиморфизмы (ОНП), идентифици-рованные в недавних ассоциативных исследованиях на пригодность в каче-стве маркёров риска развития артериальной гипертензии (АГ) в сибирской популяции. Материал и методы. Группа больных АГ и контрольная группа (отношение 2:1) были сформированы на основе популяционной выборки 45-69 летних жителей г. Новосибирска (9400 человек), которая была собрана в ходе работы по международному проекту HAPIEE. В исследование включены 514 человек, из них конт рольная группа -168 человек (127 мужчин и 41 женщина) с АД не выше "нормального" по данным 2-х и более обследований в течение нескольких лет с интервалом не менее 6 мес. Группа с АГ состоит из 346 чело-век (206 мужчин и 140 женщин) с установленным диагнозом АГ. Геномную ДНК выделяли из венозной крови методом фенол-хлороформной экстракции. Полиморфизм генов тестировали с помощью ПЦР в реальном времени в соот-ветствии с протоколом фирмы производителя (зонды TaqMan, Applied Biosystems, USA) на приборе ABI 7900HT. В исследование были взяты следую-щие ОНП: rs699 ген AGT, rs5068 ген NPPB, rs17367504 ген MTHFR, rs2681492 ген ATP2B1, rs4343 ген АСЕ, rs1801253 ген ADRB1, rs11240692 ген REN, rs2846679 ген KCNJ1, rs239345 ген SCNN1B, rs1799983 ген NOS3. Результаты. Отношение шансов иметь АГ у мужчин -носителей генотипа GG rs699 гена AGT -составило 1,95 (95% ДИ 1,08-3,53; p=0,003) по сравнению с носителями двух других генотипов. Носительство генотипа АА rs699 напро-тив, является условно протективным фактором в отношении развития АГ у мужчин (ОШ 0,47; 95% ДИ 0,27-0,81; р=0,007). Заключение. Для двух из десяти исследованных ОНП была подтверждена ассоциация с АГ у мужчин: rs699 гена AGT и rs5068 гена NPPB. Aim. To check whether the mononucleotide polymorphisms (MNP), identified in recent studies do match a risk marker criteria for arterial hypertension (AH) in Siberian population. Material and methods. The group of subjects with AH and control group (relation 2:1) were formed from the population selection of 45-69 years old citizens of Novosibirsk (9400 subjects), which had been collected during the work in HAPIEE project. Totally 514 subjects included, of those controls -168 (127 men and 41 women) with BP not higher than "normal" by the data of 2 and more examinations during the last years, with interval not more than 6 months. Group with AH consists of 346 subjects (206 men and 140 women) with the diagnosis of AH. Genomic DNA was extracted from venous blood by the method of phenol-chloroform extraction. Gene polymorphism was tested by PCR in real time according to the protocol of equipment manufacturer (zonds TagMan, Applied Biosystems, USA) on the device ABI 7900HT. These MNP were included into the study: rs699 gene AGT, rs5068 gene NPPB, rs17367504 gene MTHFR, rs2681492 gene ATP2B1, rs4343 gene АСЕ, rs1801253 gene ADRB1, rs11240692 gene REN, rs2846679 gene KCNJ1, rs239345 gene SCNN1B, rs1799983 gene NOS3. ASSOCIATION OF GENETIC MARKERS IN HYPERTENSIVE DISEASE IN SIBERIAN POPULATIONResults. The risk relation to develop AH...
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