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АССОЦИИРОВАННОСТЬ ЛЕТАЛЬНЫХ ИСХОДОВ ХИРУРГИЧЕСКОГО СЕПСИСА С АЛЛЕЛЬНЫМИ ВАРИАНТАМИ ГЕНОВ ФАКТОРА НЕКРОЗА ОПУХОЛИ (TNFα) И БЕЛКОВ ТЕПЛОВОГО ШОКА (HSP70-2)

АССОЦИИРОВАННОСТЬ ЛЕТАЛЬНЫХ ИСХОДОВ ХИРУРГИЧЕСКОГО СЕПСИСА С АЛЛЕЛЬНЫМИ ВАРИАНТАМИ ГЕНОВ ФАКТОРА НЕКРОЗА ОПУХОЛИ (TNFα) И БЕЛКОВ ТЕПЛОВОГО ШОКА (HSP70-2)

Abstract

Учитывая близкую локализацию генов, кодирующих HSP70-2 и TNFα, и взаимное влияние их продуктов на развитие септического процесса, исследовался аллельный полиморфизм кодирующего региона HSP70-2 гена в позиции 1267 и аллельный полиморфизма промоторного региона гена TNFα в позиции –308 у 61 пациента c хирургическим сепсисом относительно 100 здоровых доноров, предполагая, что определенные аллельные варианты могут быть ассоциированы с предрасположенностью к развитию сепсиса и/или к развитию летального исхода при сепсисе. Были найдены достоверные различия в частотах аллельных вариантов HSP70-2 гена при сравнении группы пациентов с сепсисом и контрольной группой. Частота HSP70-2*B/B увеличена в группе септических больных, и для носителей данного генотипа показана предрасположенность к развитию сепсиса. При анализе совместного носительства аллельных вариантов генов HSP70-2 и TNFα среди умерших пациентов относительно выживших нами выявлены специфичные комбинации, встречающиеся только в группе умерших пациентов: HSP70-2 АA/TNFα AA, и только в группе выживших пациентов: HSP70-2BB/TNFα AA и HSP70-2 BB/TNFα AG. Полученные результаты исследований позволяют говорить о наличии определенных генетических факторов, способных оказывать существенное влияние на интенсивность воспаления при сепсисе и, следовательно, на клинические проявления и исход заболевания.

Taking into account close localization of genes encoding HSP70-2 and TNFα and mutual influence of their products upon development of septic process, we investigated allelic polymorphism in the coding region of HSP70-2 gene at position 1267, and a promoter polymorphism of TNFα gene (–308 position) in sixty-one patients with surgical sepsis, as compared with 100 healthy donors, assuming that certain genomic variants can be associated with susceptibility for sepsis and/or fatal outcomes in severe sepsis. Significant differences in frequencies of HSP70-2 gene alleles have been found in the group with sepsis against healthy controls. Prevalence of HSP70-2*B/B allele is increased in the group of patients with sepsis, and a predisposal for sepsis development is shown for carriers of the given genotype. When analyzing carriers of combined HSP70-2/TNFα allelic variants among dead patients vs survivors, we have revealed specific combinations that are detected solely among non-survived patients, i.e., HSP70-2 A/TNFα AA, or only among survivors (HSP70-2BB /TNFα AA и HSP70-2 BB/TNFα AG). The results obtained allow us to suggest about certain genetic factors that may sufficiently influence intensity of inflammation in sepsis and, hence, upon clinical manifestations and outcomes of the disease.

Keywords

TNFα, ХИРУРГИЧЕСКИЙ СЕПСИС

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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