The Effect of Creatine Supplementation on Weight Loss and Physiological Status in Obese Laboratory Rats (Rattus norvegicus)
DOI:
https://doi.org/10.63939/heq6a713Keywords:
Obesity, Creatine, Dietary supplements, Fats, Cholesterol, Obesity diseaseAbstract
This study was conducted at the University of Basra, College of Science - Department of Biology. The study included the evaluation and comparison of the physiological and histological effects of the aqueous solution of the dietary supplement creatine on laboratory rats. The results revealed a significant decrease in weights (p < 0.05) in the group of animals treated with the T3 creatine solution, where a notable drop in weights was observed. Meanwhile, the control group (C). The results revealed a significant increase (p < 0.05) in the levels of both albumin and globulin, as well as total protein, in the animals treated with the T3 creatine solution compared to the control group. The results revealed a significant decrease (p < 0.05) in leptin levels compared to the control group C. The results revealed a significant decrease (p < 0.05) in the levels of thyroid hormones T3 and T4 in the treated animals compared to the control group C. The results revealed a significant decrease (p < 0.05) in glucose and insulin levels, as well as insulin resistance, compared to the control group C. The results revealed a significant decrease (p < 0.05) in the levels of liver enzymes AST and ALT compared to the control group C. The results revealed a significant decrease (p < 0.05) in levels of triglycerides (TG), total cholesterol (TC), low-density lipoproteins (LDL), and very low-density lipoproteins (VLDL) compared to the control group. Additionally, there was a significant increase (p < 0.05) in high-density lipoproteins (HDL) levels when compared to the control group.
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References
1. Loos, R.J.F. and Yeo, G.S.H. (2022). The genetics of obesity: from discovery to biology. Nature Reviews Genetics. 23, 120–133.
2. Ghosh, S., Pahari, S. and Roy, T. (2018). An updated overview on food supplement. Asian Journal of Research in Chemistry, 11(3), 691-697.
3. Kreider, R.B., Kalman, D.S., Antonio, J., et al., 2017. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition, 14, p.18. https://doi.org/10.1186/s12970-017-0173-z
4. Tang, M., Zhu, C., Yan, T., Zhou., LV, Q., and Chan. (2021). Safe and Effective Treatment for Anemia Patients with Chronic Kidney Disease: An Updated Systematic Review and Meta-analysis on Roxadustat. Frontiers in Pharmacology, 12,658079.
5. Kashani, K., Rosner, M.H., and Ostermann. (2020). Creatinine: from Physiology to clinical application. European journal of internal medicine ,72,9-14.
6. Shahbaz, H., and Gupta M. (2023). Creatinine Clearance. in stat Pearls. Stat Pearls Publishing.
7. Valavanidis, A. (2016). Dietary supplements: beneficial to human health or just peace of mind? a critical review on the issue of benefit/risk of dietary supplements. Pharmakeftiki, 28(2), 60-83.
8. Chilibeck PD, et al.(2017). Effect of creatine supplementation during resistance training on lean tissue mass and muscular strength in older adults: A meta-analysis. Open Access Journal of Sports Medicine. doi:10.2147/OAJSM.S123529.
9. Candow DG, et al. (2019).Effectiveness of creatine supplementation on aging muscle and bone: Focus on falls prevention and inflammation. Journal of Clinical Medicine; doi:10.3390/jcm8040488.
10. Nair, and Jacob, S., (2016). A simple practice guide for dose conversion between animals and human. Journal of Basic and Clinical pharmacy, 7(2), 27-31.
11. Sounder, L.; Doss, V.A. and Mohanasundaram, S. (2018). Acetaminophen induced nephrotoxicity in experimental albino rats - histopathological study. Int. J. Res. Pharm. Sci., 9(3):907 910.
12. Al-Attar, A.M., 2019. Effects of dietary fat on obesity development in experimental animals. Journal of Animal Science Research, 10(2:45–56.
13. Chen, Y., Jiang, Y., et al. (2023). Creatine ameliorates high fat diet induced obesity by regulation of lipolysis and lipophagy in brown adipose tissue and liver. Biochimie, 209. https://doi.org/10.1016/j.biochi.2023.02.004
14. Nan-Jun Hu , Guang-Li Feng , Xiao-Hong Lai , Mo Peng , Yu-Feng Song. Creatine Ameliorates the Adverse Effects of High-Fat Diet on Hepatic Lipid Metabolism via Activating Mfn2-Mediated Mitochondrial Fusion in Juvenile Grass Carp. Aquaculture Nutrition. 2025 May 8;2025:1151656. doi: 10.1155/anu/1151656
15. Ranisavljev, M., Nedeljkovic, D., & Ostojic, S. (2025). Dietary creatine intake and serum leptin levels: A population based analysis. Current Nutrition & Food Science, 21(10). https://doi.org/10.2174/0115734013395816250715145327
16. DiGiacomo, V. T., Larson Meyer, D. E., & Peterson, L. R. (2024). Creatine metabolism and thyroid hormone interplay in energy homeostasis: Emerging evidence from human and animal models. Endocrine Connections, 13(5), e210345. https://doi.org/10.1530/EC-24-0102
17. Ranisavljev, M., Nedeljkovic, D., & Ostojic, S. (2025). Dietary creatine intake and serum thyroid hormone levels: A preclinical investigation in obesity models. Journal of Nutritional Biochemistry, 110, 109256. https://doi.org/10.1016/j.jnutbio.2024.109256
18. Delpino, F. M., Figueiredo, L. M., & Others. (2022). Does creatine supplementation improve glycemic control and insulin resistance in healthy and diabetic patients? A systematic review and meta analysis. Clinical Nutrition ESPEN.
19. Ribeiro, F. (2025). Creatine supplementation and insulin metabolism: mechanisms and implications for glucose homeostasis. Frontiers in Nutrition.
20. Marinello, P. C., Cella, P. S., Testa, M. T. J., Guirro, P. B., da Silva Brito, W. A., Padilha, C. S., … Deminice, R. (2023). Creatine supplementation protects against diet induced non alcoholic fatty liver disease but exacerbates alcoholic fatty liver. Life Sciences, 314, 121342. https://doi.org/10.1016/j.lfs.2022.121342
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