ICJIM

The Intercontinental Journal of Internal Medicine aims to publish issues related to all fields of internal medicine of the highest scientific and clinical value at an international level and accepts articles on these topics.

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Original Article
The effect of SGLT2 inhibitors on volume-related laboratory and metabolic parameters in older adults: a 6-month retrospective study
Aims: The aim of this study was to evaluate the effects of sodium-glucose cotransporter-2 (SGLT2) inhibitor therapy on volume-related laboratory parameters and vital signs, such as blood pressure and pulse rate, in geriatric patients with type 2 diabetes who have no comorbidities.
Methods: This retrospective study included patients aged 65 years and over who had been diagnosed with Type 2 diabetes only and were starting SGLT2 inhibitor therapy for the first time. Patients with chronic conditions such as hypertension, cardiovascular disease, or chronic kidney disease, and those taking diuretics, were excluded from the study. Patients’ hemoglobin, hematocrit, blood urea nitrogen (BUN), creatinine, BUN/creatinine ratio, electrolyte and uric acid levels, as well as systolic and diastolic blood pressure and pulse rates, were recorded prior to SGLT2 inhibitor treatment and at 3 and 6 months into treatment. In the statistical analysis, appropriate parametric or non-parametric tests were used for repeated measurements.
Results: Among 206 patients, 190 received dapagliflozin and 16 empagliflozin. Body weight, body-mass index (BMI), waist circumference, and blood pressure decreased significantly (p<0.001). Renal function markers (urea, creatinine, and blood urea nitrogen [BUN]/creatinine ratio) increased, whereas estimated glomerular filtration rate (eGFR) decreased. Sodium and albumin levels increased, while uric acid levels decreased (all p<0.001). Significant reductions were observed in glucose and HbA1c levels. Triglycerides (TG) decreased, whereas total cholesterol, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol increased. Hemoglobin, hematocrit, red blood cell (RBC), and platelet counts increased significantly (p<0.001). Most changes were more pronounced during the first 3 months and then approached a plateau.
Conclusion: The use of SGLT2 inhibitors in geriatric patients without comorbidities has resulted in positive changes in body weight, blood pressure, and hematological parameters, as well as improved glycemic control. In particular, the effects on volume-related parameters highlight the need for close monitoring at the start of treatment in the geriatric population. These findings demonstrate that SGLT2 inhibitors are a safe and effective treatment option in the geriatric population, but that they must be supported by monitoring and follow-up.
Ethical Statement

This study was approved by the Non-interventional Researches Ethics Committee of Kırıkkale University (Date: 27.11.2024, Decision No: 2024.11.20).

Informed Consent

This retrospective study used pre-existing anonymized patient data. No additional intervention was performed, and there was no direct patient contact. The study was approved by the Ethics Committee, and the requirement for written informed consent was waived by the ethics committee.

Author Contributions

Concept: AH, AÇ, ZNÖ, AV, ŞÇ; Design: AH, AÇ, ZNÖ, AV, ŞÇ; Control: AH, AÇ, ZNÖ, AV, ŞÇ; Data Collection and/ or Processing: AH; Analysis and/or Interpretation: AH, AÇ, ZNÖ, AV, ŞÇ; Literature Review: AH; Article Writing: AH, AÇ; Critical Review: AH, AÇ.

Conflict of Interest

The authors declare no conflicts of interest related to this study.

Financial Disclosure

The authors received no financial support for the conduct or publication of this research.


1. Bradley D, Hsueh W. Type 2 diabetes in the elderly: challenges in a unique patient population. J Geriatr Med Gerontol. 2016;2(2):14. doi:10.23937/2469-5858/1510014
2. Bellary S, Kyrou I, Brown JE, Bailey CJ. Type 2 diabetes mellitus in older adults: clinical considerations and management. Nat Rev Endocrinol. 2021;17(9):534-548. doi:10.1038/s41574-021-00512-2
3. Fonseca-Correa JI, Correa-Rotter R. Sodium-glucose cotransporter 2 Inhibitors mechanisms of action: a review. Front Med (Lausanne). 2021; 8:777861. doi:10.3389/fmed.2021.777861
4. Vallon V. State-of-the-art-review: mechanisms of action of sglt2 inhibitors and clinical implications. Am J Hypertens. 2024;37(11):841-852. doi:10.1093/ajh/hpae092
5. Wiviott SD, Raz I, Bonaca MP, et al. Dapagliflozin and cardiovascular outcomes in type 2 diabetes. N Engl J Med. 2019;380(4):347-357. doi:10.1056/NEJMoa1812389
6. Edwards S, Lam C, Thomas L. Evaluation of the safety and tolerability of sodium-glucose co-transporter 2 inhibitors in the older population: a systematic review. Sr Care Pharm. 2023;38(7):276-287. doi:10.4140/TCP.n.2023.276
7. Lee DH, Oh JH, Jeon HJ, Oh TK. The efficacy and safety of sodium-glucose co-transporter 2 (SGLT2) inhibitors in real-world clinical practice: potential cautionary use in elderly patients with type 2 diabetes (T2D). Diabetes Ther. 2024;15(7):1615-1626. doi:10.1007/s13300-024-01604-8
8. Kanbay M, Tapoi L, Ureche C, et al. Effect of sodium-glucose cotransporter 2 inhibitors on hemoglobin and hematocrit levels in type 2 diabetes: a systematic review and meta-analysis. Int Urol Nephrol. 2022;54(4):827-841. doi:10.1007/s11255-021-02943-2
9. Thiele K, Rau M, Hartmann NK, et al. Effects of empagliflozin on erythropoiesis in patients with type 2 diabetes: data from a randomized, placebo-controlled study. Diabetes Obes Metab. 2021;23(12):2814-2818. doi:10.1111/dom.14517
10. An HJ, Jang JH, Lee S, et al. Impact of age on eGFR dynamics following sodium-glucose cotransporter 2 inhibitor therapy: a real-world study. Diabetes Res Clin Pract. 2024;214:111796. doi:10.1016/j.diabres.2024.1117967
11. Bay SS, Baharom NH, Zaihan AF. The impact of initiating SGLT2 inhibitors on eGFR: a pilot study at a secondary hospital in Malaysia. BMC Res Notes. 2025;19(1):14. doi:10.1186/s13104-025-07593-6
12. Groothof D, Shehab NBN, Post A, Erler NS, Gans ROB, Bakker SJL. SGLT2 inhibitors, muscle loss, and creatinine-based estimated GFR: an integrative conceptual review of renoprotection. Kidney Med. 2026;8(4): 101297. doi:10.1016/j.xkme.2026.101297
13. Liu Y, An C, Liu P, Yang F, Zhao Q. Comparative safety of sodiumglucose co-transporter 2 inhibitors in elderly patients with type 2 diabetes mellitus and diabetic kidney disease: a systematic review and meta-analysis. Ren Fail. 2023;45(1):2217287. doi:10.1080/0886022x.2023.2217287
14. Armentaro G, Maio R, Bencivenga L, et al. The use of SGLT2 inhibitors in older people: what is important? Aging Clin Exp Res. 2025;37(1):280. doi:10.1007/s40520-025-03156-8
15. Fukuda K, Haneda M, Kubota N, Araki E, Yamagata K. Age-related glucose intolerance is associated with impaired insulin secretion in community-dwelling Japanese adults: the Kumamoto Koshi study. Biomedicines. 2025;13(2):380. doi:10.3390/biomedicines13020380
16. Bechmann LE, Emanuelsson F, Nordestgaard BG, Benn M. SGLT2inhibition increases total, LDL, and HDL cholesterol and lowers triglycerides: meta-analyses of 60 randomized trials, overall and by dose, ethnicity, and drug type. Atherosclerosis. 2024;394:117236. doi:10.1016/j.atherosclerosis.2023.117236
17. Kusunoki M, Hisano F, Matsuda S, Wakazono N, Tsutsumi K, Miyata T. Influence of age on the effects of sodium-glucose cotransporter 2 inhibitors in Japanese patients with type 2 diabetes mellitus. J Endocrinol Metab. 2022;12(2):53-58. doi:10.14740/jofem799
18. Şahiner ES, Zengin O. Laboratory changes in older patients using SGLT2 inhibitors. JOMPAC. 2022;3(3):142-146. doi:10.47582/jompac.1143184
19. Scheen AJ, Bonnet F. Efficacy and safety profile of SGLT2 inhibitors in the elderly: how is the benefit/risk balance? Diabetes Metab. 2023;49(2): 101419. doi:10.1016/j.diabet.2023.101419
20. Sridharan K, Sivaramakrishnan G. Safety profile of SGLT-2 inhibitors in older adults: a systematic review and network meta-analysis. Med Sci (Basel). 2026;14(1):153. doi:10.3390/medsci14010153
21. Habeeb EA, Ghaith AM, Alshehri AM, et al. Revealing the hidden impact of SGLT2 inhibitors on uric acid levels: a retrospective multicenter cohort study. Front Endocrinol (Lausanne). 2025;16:1667438. doi:10.3389/fendo.2025.1667438
22. Kochanowska A, Rusztyn P, Szczerkowska K, et al. Sodium-glucose cotransporter 2 inhibitors to decrease the uric acid concentration-a novel mechanism of action. J Cardiovasc Dev Dis. 2023;10(7):268. doi:10.3390/jcdd10070268
23. Yang S, Hu Q, Liu K, Xiao B, Zhang B, Su N. Serum uric acid reduction through SGLT2 inhibitors: evidence from a systematic review and meta-analysis. Front Pharmacol. 2025;16:1551390. doi:10.3389/fphar.2025.155139
24. Tang H, Xu C, Zhang P, Luo T, Huang Y, Yang X. A profile of SGLT-2 inhibitors in hyponatremia: the evidence to date. Eur J Pharm Sci. 2023; 184:106415. doi:10.1016/j.ejps.2023.106415
25. Amani-Beni R, Darouei B, Shafie D, et al. The impact of sodiumglucose co-transporter-2 inhibitors on serum sodium and potassium in patients with heart failure: a systematic review and meta-analysis. BMC Cardiovasc Disord. 2025;25(1):252. doi:10.1186/s12872-025-04704-w
26. Cheng YW, Chan YH, Chuang C, Chen SW, Chao TF, Kao YW. Association of initial serum sodium change and clinical outcome in patients with diabetes receiving sodium-glucose cotransporter-2 inhibitor therapy: a multicentre database analysis in Taiwan. Diabetes Obes Metab. 2025;27(1):247-258. doi:10.1111/dom.1601
27. Tian Q, Guo K, Deng J, Zhong Y, Yang L. Effects of SGLT2 inhibitors on haematocrit and haemoglobin levels and the associated cardiorenal benefits in T2DM patients: a meta-analysis. J Cell Mol Med. 2022;26(2): 540-547. doi:10.1111/jcmm.17115
28. Kambara T, Shibata R, Osanai H, et al. Use of sodium-glucose cotransporter 2 inhibitors in older patients with type 2 diabetes mellitus. Geriatr Gerontol Int. 2018;18(1):108-114. doi:10.1111/ggi.13149
Volume 4, Issue 4, 2026
Page : 76-83
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