HEMATOLOGICAL PROFILE AND IRON METABOLISM INDICATORS IN PREGNANT WOMEN LIVING IN MID-ALTITUDE AND LOW-ALTITUDE AREAS OF SOUTHERN KYRGYZSTAN
DOI:
https://doi.org/10.52754/16948610_2026_2_1%20Keywords:
pregnant women, anemia, hemoglobin, ferritin, serum ironAbstract
Relevance. This study aimed to assess the hematological profile of pregnant women with and without anemia living in a mid-altitude region (Aidarken) and a low-altitude area (Kara-Suu) in southern Kyrgyzstan. A total of 190 pregnant women in the third trimester, aged 19–45 years, were included in the study: Aidarken (n=106) and Kara-Suu (n=84). Hematological parameters including hemoglobin (HGB), red blood cells (RBC), hematocrit (HCT), mean corpuscular volume (MCV), serum ferritin, and serum iron were analyzed. The prevalence of anemia was 48.11% in Aidarken and 48.81% in Kara-Suu. In Aidarken, pregnant women with anemia had significantly lower hemoglobin levels (95.04 (10.22) vs. 122.73 (9.59) g/L; p<0.001), hematocrit (30.81 (5.48) vs. 38.19 (4.06)%; p<0.001), and MCHC (316.9 (21.24) vs. 332.2 (12.80) g/dL; p=0.009) compared with non-anemic women. In Kara-Suu, anemic pregnant women also demonstrated significantly lower hemoglobin levels (98.05 (9.85) vs. 120.35 (9.95) g/L; p<0.001), MCV (86.67 (8.66) vs. 90.82 (3.20) fL; p=0.0396), and serum ferritin concentrations (8.37 (2.04) vs. 12.58 (6.72) ng/mL; p=0.013) than non-anemic women. The findings indicate a high prevalence of anemia among pregnant women in both Aidarken and Kara-Suu. In the low-altitude area, anemia was associated with decreased serum ferritin levels.
References
Burton, G. J., Moore, L. G., Giussani, D. A., & Murray, A. J. (2025). Pregnancy at high altitude: The challenge of hypoxia. Philosophical Transactions of the Royal Society B: Biological Sciences, 380(1933), 20240167.
Kort, S. A. R., Wickliffe, J., Shankar, A., Shafer, M., Hindori-Mohangoo, A. D., Covert, H. H., et al. (2022). The association between mercury and lead exposure and liver and kidney function in pregnant Surinamese women enrolled in the CCREOH study. Toxics, 10(10), 584. https://doi.org/10.3390/toxics10100584
Gonzalez-Candia, A., & Herrera, E. A. (2021). High altitude pregnancies and vascular dysfunction: Observations from Latin American studies. Frontiers in Physiology, 12, 786038. https://doi.org/10.3389/fphys.2021.786038
Liu, T., Zhang, M., Mourkus, A., Schroeder, H., Zhang, L., Power, G. G., et al. (2022). Chronic high-altitude hypoxia alters iron and nitric oxide homeostasis in fetal and maternal sheep blood and aorta. Antioxidants, 11(9), 1821. https://doi.org/10.3390/antiox11091821
Wilsterman, K., & Cheviron, Z. A. (2021). Fetal growth, high altitude, and evolutionary adaptation: A new perspective. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 321(3), R279–R294. https://doi.org/10.1152/ajpregu.2021
Muckenthaler, M. U., Mairbäurl, H., & Gassmann, M. (2020). Iron metabolism in high-altitude residents. Journal of Applied Physiology, 129(4), 920–925. https://doi.org/10.1152/japplphysiol.00019.2020
Tursunova, V., Tratnik, J. S., Tuhvatshin, R., Mazej, D., Muratov, Z., Azhimamatova, R., et al. (2025). Blood metal(loid)s, haemoglobin and goitre in pregnant women from mercury-exposed and non-exposed environment (Aidarken vs Kara-Suu, Kyrgyz Republic). Environmental Research, 284, 122204.
Sun, T., Zheng, Z., Yang, M., Pan, M., Tan, Q., Ma, Y., et al. (2025). Heavy metal exposure during pregnancy and its association with adverse birth outcomes. GeoHealth, 9(10), e2025GH001471.
UNICEF Kyrgyzstan. (2022). National integrated micronutrient and anthropometric survey in the Kyrgyz Republic (NIMAS).
Vásquez-Velásquez, C., Fernandez-Guzman, D., Quispe-Vicuña, C., et al. (2023). Evaluating diagnostic performance of hemoglobin in high-altitude populations. International Journal of Environmental Research and Public Health, 20(12), 6117. https://doi.org/10.3390/ijerph20126117
Alkhaldy, H. Y., Hadi, R. A., Alghamdi, K. A., et al. (2020). The pattern of iron deficiency with and without anemia among medical college girls in high altitude southern Saudi Arabia. Journal of Family Medicine and Primary Care, 9(9), 5018–5025. https://doi.org/10.4103/jfmpc.jfmpc_730_20
Agency for Toxic Substances and Disease Registry. (2024). Toxicological profile for mercury. https://www.atsdr.cdc.gov
Hanif, N., Rout, P., & Anwer, F. (2026). Iron deficiency and microcytic hypochromic anemia. In StatPearls. StatPearls Publishing.
UNICEF Kyrgyzstan. (2022). Nutrition in Kyrgyzstan / national nutrition survey reports.
Kyrgyz Ministry of Health. Sanitary and Hygienic Laboratory of the Interdistrict Kadamjai Center for Disease Prevention and State Sanitary and Epidemiological Surveillance, Medecins Sans Frontiers, TerraGraphics International Foundation, 2022. Human Health Risk Assessment (HHRA) for Communities in Kadamjai Rayon, Batken Oblast, Kyrgyz Republic. https://www.terragraphicsinternational.org/_files/ugd/f467ea_f265b08b32ac4c6b8644709528cecd8a.pdf
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