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Study of heat shock protein gene 70 (HSP70) expression and its polymorphous marker (+ 1267A> G) in women under exposure to a long-term stress.

07:00 EST 1st January 2018 | BioPortfolio

Summary of "Study of heat shock protein gene 70 (HSP70) expression and its polymorphous marker (+ 1267A> G) in women under exposure to a long-term stress."

There was studied the HSP70 gene and its polymorphic marker + 1267A> G (rs754888705) in the HSP70 gene expression in32 women under long-term stress, which was caused by inpatient treatment of their oncologic child. A control group included 25 women without long-term stress factors. There was studied a correlation between the expression level of the HSP70 gene in women and their high blood pressure (BP) episodes. The average duration of stress in the group of children's mothers was 7.3 (2.5-11.5) months. Anxiety level according to HADS in the main group was significantly increased and amounted to 8.7 (7-10) points, in the control group 5 (2-7) points. Depression level in the main group was significantly higher and amounted to 7.7 (7-9) points, in the control group 3.3 (1-5) points. Comparison of the HSP70 gene expression level in blood of young women of the main study group with expression level of this gene in the control group showed a statistically significant predominance of HSP70 gene expression in the main group. The episodes of high BP in women who were under stress conditions did not influence the expression level of the HSP70 gene. Analysis of the alleles of the polymorphic marker frequency in the gene HSP70-2 1267A> G (rs754888705) in the main and control groups showed a statistically significant predominance of allele A in the group of mothers under stress, and predominance of the allele G in the control group. Comparative analysis of the polymorphic marker genotype frequencies in the gene HSP70-2 1267A> G (rs754888705) showed that the AA genotype is significantly more frequent in mothers with episodes of BP increase compared to women without it. An increased level of the HSP70 gene expression in peripheral blood leukocytes in mothers with a life-threatening disease of their child indicates the damaging effect of long-lasting psychoemotional stress at the cellular level and activation of the protective reaction mediated by HSP70. Studying of the genotype AA characteristics of the polymorphic marker A1267G (rs754888705) of the HSP70-2 gene in women under long-lasting stress will let us evaluate the role of genetic factors in hypertensive reactions development.

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Journal Details

This article was published in the following journal.

Name: Klinicheskaia laboratornaia diagnostika
ISSN: 0869-2084
Pages: 517-520

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A group of eukaryotic high-molecular mass heat-shock proteins that represent a subfamily of HSP70 HEAT-SHOCK PROTEINS. Hsp110 proteins prevent protein aggregation and can maintain denatured proteins in folding-competent states.

A constitutively expressed subfamily of the HSP70 heat-shock proteins. They preferentially bind and release hydrophobic peptides by an ATP-dependent process and are involved in post-translational PROTEIN TRANSLOCATION.

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