Association of TCF7L2 gene expression with clinical and biochemical markers in type 2 diabetes mellitus patients in Babylon Province
Abstract
T2DM is a long-term, progressive metabolic disease characterized by elevated blood glucose levels brought on by insulin resistance and a decline in pancreatic β-cell function. Our r esearch aimed to examine the correlation between the levels of parameters (FBS, HbA1c, TG, TC, HDL, LDL, and VLDL) and the genetic expression of the TCF7L2 gene in patients with T2DM (G2) in comparison to the control group (G1). There were 200 participants in the study: 100 patients with T2DM (G2) and 100 ethnically matched controls (G1). The T2DM patients were nonsmok ers between the ages of 45 and 60 who attended the Marjan Teaching Hospital, Specialized Diabetes Center in Babylon Governorate, Iraq . Together with the genetic expression analysis of the TCF7L2 gene, which was confirmed to be pertinent to the clinical symptoms and biochemical features of the present investigation, specific tests were performed for the biochemical parameters of FBS, HbA1c, TG, TC, HDL, LDL, and VLDL. The study found that the re was a significant difference between the two study groups in the levels of FBS, HbA1c, TC, and the gene expression level of the TCF7L2 gene. T he mean values for the parameters of FBS, HbA1c, TC, HDL, LDL and VLDL were high in the T2DM group (G2) compared to the control group (G1). B y studying the Pearson correlation, a correlation was found between FBS and HbA1c, between FBS and TG, and between HbA1c and TG, where the Pearson correlation value was signif i cant . The study concluded that low gene expression of TCF72 is associated with high FBS, HbA1c, and TG levels in patients with T2DM, and that there is a correlation between clinical parameters in patients with T2DM . .References
Ajami, M., Seyfi, M., Abdollah Pouri Hosseini, F., Naseri, P., Velayati, A., Mahmoudnia, F., Zahedirad, M., & Hajifaraji, M. (2020). Effects of stevia on glycemic and lipid profile of type 2 diabetic patients: A randomized controlled trial. Avicenna Journal of Phytomedicine, 10(2), 118–127.
Aktas, G., Kocak, M. Z., Bilgin, S., Atak, B. M., Duman, T. T., & Kurtkulagi, O. (2020). Uric acid to HDL cholesterol ratio is a strong predictor of diabetic control in men with type 2 diabetes mellitus. The Aging Male, 23(5), 1098–1102.
Asbaghi, O., Sadeghian, M., Fouladvand, F., Panahande, B., Nasiri, M., Khodadost, M., Shokri, A., Pirouzi, A., & Sadeghi, O. (2020). Effects of zinc supplementation on lipid profile in patients with type 2 diabetes mellitus: A systematic review and meta-analysis of randomized controlled trials. Nutrition, Metabolism, and Cardiovascular Diseases, 30(8), 1260–1271.
Bellary, S., Kyrou, I., Brown, J. E., & Bailey, C. J. (2021). Type 2 diabetes mellitus in older adults: Clinical considerations and management. Nature Reviews. Endocrinology, 17(9), 534–548.
Bonilha, I., Hajduch, E., Luchiari, B., Nadruz, W., Le Goff, W., & Sposito, A. C. (2021). The reciprocal relationship between LDL metabolism and type 2 diabetes mellitus. Metabolites, 11(12), 807.
Bragg, F., Kartsonaki, C., Guo, Y., Holmes, M., Du, H., Yu, C., Pei, P., Yang, L., Jin, D., Chen, Y., Schmidt, D., Avery, D., Lv, J., Chen, J., Clarke, R., Hill, M., Li, L., Millwood, I., & Chen, Z. (2022). Circulating metabolites and the development of type 2 diabetes in Chinese adults. Diabetes Care, 45(2), 477–480.
Camacho-Jiménez, L., Peregrino-Uriarte, A. B., Leyva-Carrillo, L., Gómez-Jiménez, S., Thies, A. B., Tresguerres, M., & Yepiz-Plascencia, G. M. (2023). Effects of severe hypoxia and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) knock-down on its gene expression, activity, subcellular localization, and apoptosis in gills of the shrimp Penaeus vannamei. Marine and Freshwater Behaviour and Physiology, 56, 91–110.
Carlier, A., Phan, F., Szpigel, A., Hajduch, E., Salem, J. E., Gautheron, J., Le Goff, W., Guérin, M., Lachkar, F., Ratziu, V., Hartemann, A., Ferré, P., Foufelle, F., & Bourron, O. (2020). Dihydroceramides in triglyceride-enriched VLDL are associated with nonalcoholic fatty liver disease severity in type 2 diabetes. Cell Reports. Medicine, 1(9), 100154.
Carvajal-Agudelo, J. D., Cortes-Mera, D. M., Giraldo-Chalarca, L., Morales-Álvarez, E. D., Ossa-López, P. A., Perez-Zapata, J. M., & Rivera-Páez, F. A. (2022). Evaluation of gamma-actin, beta-actin, GAPDH, and 18S as reference genes for qRT-PCR using blood samples in canine mammary research. Veterinarska Stanica, 53(1), 65–74.
Chamroonkiadtikun, P., Ananchaisarp, T., & Wanichanon, W. (2020). The triglyceride-glucose index, a predictor of type 2 diabetes development: A retrospective cohort study. Primary Care Diabetes, 14(2), 161–167.
Cunningham, A. L., Stephens, J. W., & Harris, D. A. (2021). Gut microbiota influence in type 2 diabetes mellitus (T2DM). Gut Pathogens, 13(1), 50.
Del Bosque-Plata, L., Hernández-Cortés, E. P., & Gragnoli, C. (2022). The broad pathogenetic role of TCF7L2 in human diseases beyond type 2 diabetes. Journal of Cellular Physiology, 237(1), 301–312.
Farmaki, P., Damaskos, C., Garmpis, N., Garmpi, A., Savvanis, S., & Diamantis, E. (2020). Complications of the type 2 diabetes mellitus. Current Cardiology Reviews, 16(4), 249–251.
Galicia-Garcia, U., Benito-Vicente, A., Jebari, S., Larrea-Sebal, A., Siddiqi, H., Uribe, K. B., Ostolaza, H., & Martín, C. (2020). Pathophysiology of type 2 diabetes mellitus. International Journal of Molecular Sciences, 21(17), 6275.
Jing, S., Chen, L., Han, S., Liu, N., Han, M., Yang, Y., & Yan, C. (2021). Expression of TCF7L2 in glioma and its relationship with clinicopathological characteristics and patient overall survival. Frontiers in Neurology, 12, 627431.
Kidwai, S. S., Nageen, A., Bashir, F., & Ara, J. (2020). HbA1c – A predictor of dyslipidemia in type 2 diabetes mellitus. Pakistan Journal of Medical Sciences, 36(6), 1339–1343.
Klimentidis, Y. C., Arora, A., Newell, M., Zhou, J., Ordovas, J. M., Renquist, B. J., & Wood, A. C. (2020). Phenotypic and genetic characterization of lower LDL cholesterol and increased type 2 diabetes risk in the UK Biobank. Diabetes, 69(10), 2194–2205.
Kose, T. (2024). A comparison of GAPDH and ACTB as internal control for gene expression studies in different cancer cell lines. International Journal of Hematology and Oncology, 34(3), 140–147.
Krawczyk, J., O'Connor, W., Vendramini, P., Schell, M., Biddinger, K. J., Kanke, M., Pengo, G., Semova, I., Fougeray, T., Haigis, M., Aragam, K. G., Lamers, W. H., Tsai, L. T., Sethupathy, P., & Biddinger, S. B. (2025). The diabetes gene Tcf7l2 organizes gene expression in the liver and regulates amino acid metabolism. Molecular Metabolism, 99, 102208.
Kwon, N., Lee, K. E., Singh, M., & Kang, S. G. (2021). Suitable primers for GAPDH reference gene amplification in quantitative RT-PCR analysis of human gene expression. Gene Reports, 24(3), 101272.
Liu, H., Liu, J., Liu, J., Xin, S., Lyu, Z., & Fu, X. (2022). Triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio, a simple but effective indicator in predicting type 2 diabetes mellitus in older adults. Frontiers in Endocrinology, 13, 828581.
Nazari, J., Yadegari, N., Khodam, S., Almasi-Hashian, A., & Amini, S. (2021). Effect of consumption of whole-wheat breads on FBS, HbA1c, and blood lipids in patients with type 2 diabetes. Preventive Nutrition and Food Science, 26(3), 269–274.
Ragheb, S. R., El Wakeel, L. M., Nasr, M. S., & Sabri, N. A. (2020). Impact of rutin and vitamin C combination on oxidative stress and glycemic control in patients with type 2 diabetes. Clinical Nutrition Espen, 35, 128–135.
Ruze, R., Liu, T., Zou, X., Song, J., Chen, Y., Xu, R., Yin, X., & Xu, Q. (2023). Obesity and type 2 diabetes mellitus: Connections in epidemiology, pathogenesis, and treatments. Frontiers in Endocrinology, 14, 1161521.
Sartore, G., Ragazzi, E., Caprino, R., & Lapolla, A. (2023). Long-term HbA1c variability and macro-/micro-vascular complications in type 2 diabetes mellitus: A meta-analysis update. Acta Diabetologica, 60(6), 721–738.
Scicali, R., Giral, P., D'Erasmo, L., Cluzel, P., Redheuil, A., Di Pino, A., Rabuazzo, A. M., Piro, S., Arca, M., Béliard, S., Purrello, F., Bruckert, E., & Gallo, A. (2021). High TG to HDL ratio plays a significant role on atherosclerosis extension in prediabetes and newly diagnosed type 2 diabetes subjects. Diabetes / Metabolism Research and Reviews, 37(2), e3367.
Thipsawat, S. (2021). Early detection of diabetic nephropathy in patient with type 2 diabetes mellitus: A review of the literature. Diabetes and Vascular Disease Research, 18(6), 14791641211058856.
Younus, A. H., & Al-Faisal, A. H. M. (2024). Correlation between TCF7L2 gene expression and certain biochemical parameters in type 2 diabetes mellitus. Journal of Taibah University Medical Sciences, 19(3), 575–584.
Yuge, H., Okada, H., Hamaguchi, M., Kurogi, K., Murata, H., Ito, M., & Fukui, M. (2023). Triglycerides / HDL cholesterol ratio and type 2 diabetes incidence: Panasonic Cohort Study 10. Cardiovascular Diabetology, 22(1), 308.
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