39 -2 (88) 2026 - Mukhitdinova K.O., Aleynik V.A. - CHANGE IN DNA METHYLATION OF LEUKOCYTES IN WOMEN WITH EARLY PREGNANCY AND EXCESSIVE INFLAMMATORY IMMUNE REACTION

CHANGE IN DNA METHYLATION OF LEUKOCYTES IN WOMEN WITH EARLY PREGNANCY AND EXCESSIVE INFLAMMATORY IMMUNE REACTION

Mukhitdinova K.O. - Andijan branch of the Institute of Immunology and Human Genomics of the Academy of Sciences of the Republic of Uzbekistan, Andijan State Medical Institute, Tashkent State Medical University

Aleynik V.A. - Andijan branch of the Institute of Immunology and Human Genomics of the Academy of Sciences of the Republic of Uzbekistan, Andijan State Medical Institute, Tashkent State Medical University

Najmutdinova D.K. - Andijan branch of the Institute of Immunology and Human Genomics of the Academy of Sciences of the Republic of Uzbekistan, Andijan State Medical Institute, Tashkent State Medical University

Babich S.M. - Andijan branch of the Institute of Immunology and Human Genomics of the Academy of Sciences of the Republic of Uzbekistan, Andijan State Medical Institute, Tashkent State Medical University

Resume

The study examined changes in leukocyte DNA methylation in women with early pregnancy loss and enhanced pro-inflammatory immune responses. It was found that high activity of pro-inflammatory mechanisms in early pregnancy, in the absence of genital infections and with insufficient compensation by protease inhibitors, creates unfavorable conditions for pregnancy development and increases the risk of spontaneous miscarriage. DNA methylation was also disrupted, as evidenced by a significant increase in DNA methyltransferase 1 (DNMT1) activity and 5-methyl-2′-deoxycytidine levels in leukocytes both before pregnancy and at 6–12 weeks of gestation. Thus, the assessment of pro-inflammatory (TNF-α, IL-1β) and anti-inflammatory (IL-10) cytokines, MMP-9, TIMP-1, as well as DNMT1 activity and 5-methyl-2′-deoxycytidine levels, may serve as informative markers of adverse outcomes in early pregnancy.

Key words: interleukins, protease inhibitors, DNA methyltransferase 1, early pregnancy, miscarriage, epigenetic DNA methylation.

First page

189

Last page

193

For citation:Mukhitdinova K.O., Aleynik V.A., Najmutdinova D.K., Babich S.M. - CHANGE IN DNA METHYLATION OF LEUKOCYTES IN WOMEN WITH EARLY PREGNANCY AND EXCESSIVE INFLAMMATORY IMMUNE REACTION//New Day in Medicine 2(88)2026 189-193 https://newdayworldmedicine.com/en/new_day_medicine/2-88-2026

List of References

  1. Anderson, C. M., Ralph, J. L., Wright, M. L., Linggi, B., Ohm, J. E. DNA methylation as a biomarker for preeclampsia //Biological research for nursing. 2014;16(4):409-420.
  2. Avila, L., Yuen, R. K., Diego-Alvarez, D., Penaherrera, M. S., Jiang, R., Robinson, W. P. Evaluating DNA methylation and gene expression variability in the human term placenta //Placenta. 2010;31(12):1070-1077.
  3. Mousa, A. A., Archer, K. J., Cappello, R., Estrada-Gutierrez, G., Isaacs, C. R., Strauss III, J. F., Mousa, A. A., Archer, K. J., Cappello, R., Estrada-Gutierrez, G., Isaacs, C. R., Strauss III, J. F., Walsh, S. W.DNA methylation is altered in maternal blood vessels of women with preeclampsia //Reproductive Sciences. 2012;19(12):1332-1342.
  4. Mousa, A. A., Cappello, R. E., Estrada-Gutierrez, G., Shukla, J., Romero, R., Strauss III, J. F., & Walsh, S. W. Preeclampsia is associated with alterations in DNA methylation of genes involved in collagen metabolism //The American journal of pathology. 2012;181(4):1455-1463.
  5. Richards E. J. Inherited epigenetic variation—revisiting soft inheritance //Nature Reviews Genetics. 2006;7(5):395-401.
  6. Suzuki M. M., Bird A. DNA methylation landscapes: provocative insights from epigenomics //Nature reviews genetics. 2008;9(6):465-476.
  7. Tost J. DNA methylation: an introduction to biology and disease-associated changes in a promising biomarker //Molecular biotechnology. 2010;44:71-81.
  8. White, W. M., Brost, B. C., Sun, Z., Rose, C., Craici, I., Wagner, S. J., ... Garovic, V. D. . Normal early pregnancy: a transient state of epigenetic change favoring hypomethylation //Epigenetics. – 2012;7(7):729-734.
  9. White, W. M., Brost, B., Sun, Z., Rose, C., Craici, I., Wagner, S. J., ... Garovic, V. D. Genome-wide methylation profiling demonstrates hypermethylation in maternal leukocyte DNA in preeclamptic compared to normotensive pregnancies //Hypertension in pregnancy. 2013;32(3):257-269.
  10. White, W. M., Sun, Z., Borowski, K. S., Brost, B. C., Davies, N. P., Rose, C. H., & Garovic, V. D. Preeclampsia/Eclampsia candidate genes show altered methylation in maternal leukocytes of preeclamptic women at the time of delivery //Hypertension in pregnancy. 2016;35(3):394-404.

    file

    download