RESPONSE OF COMBINED TREATMENTS FOR OBESITY AND TYPE 1 DIABETES WITH GLP-1

Main Article Content

Syeda Quratulain Farhan
Reena Kishore Ochani
Samar Ali Mohamed Aboelgamal
Subash Kirshan
Kiran Tufail
Dr Muhammad Zeeshan

Keywords

Type 1 diabetes, obesity, GLP-1 receptor agonists, insulin therapy, glycemic control, weight management, cardiovascular health.

Abstract

Background: T1D and obesity are both complex conditions to treat because the improvement in the patient’s insulin level through insulin therapy helps the patient gain weight in contrast to other types of diabetes. The selected GLP-1 receptor agonists have demonstrated potential for improving glycemic targets and contributing to weight loss in T2DM; thus, this study examines GLP-1RAs for T1D patients with obesity.


Aim: Using a qualitative approach, this work seeks to establish the impact of adding GLP-1 receptor agonists to insulin treatment for glycemic control, weight loss, and cardiovascular outcomes in patients with T1D and obesity.


Study Setting: The study is conducted at Pakistan Institute Of Medical Sciences (PIMS) Islamabad, from  Jan 2023 - June 2023.


Method: This RCT aimed at comparing changes in metabolic characteristics of T1D obese patients treated with GLP-1 receptor agonists as an additional medication to insulin treatment. Patients were equally divided randomly and treated either with insulin or with insulin plus GLP-1 as an adjunct therapy under double blind for a duration of 24 weeks. In the experimental group, the patients received active substance liraglutide, while in the control group insulin dosages were adjusted to the normal glucose level. These were represented by shifts in the HbA1c level, weight, or cardiovascular status; two aspects of quality of life were evaluated by self-reporting instruments. Statistical software SPSS was used in data analysis and the particular focus of the study was to evaluate the effectiveness of the combination therapy as compared with insulin only.


Results: HbA1c was significantly reduced among the experimental group, (-1.2%) as compared to the (-0.4%)in the control group and weight loss (-3.5kg) as compared to control group (-0.5 kg). Furthermore, the experimental group had better cardiovascular indices, the physical signs such as blood pressure and lipid profile, and self-rating satisfaction with the treatment.


Conclusion: Supplementary use of GLP-1 receptor agonists has been shown to add to both the efficiency of glycemic control and the issue of weight in T1D obese patients under insulin treatment. They appear to point to the fact that this combined therapy, therefore, could be a worthy addition to the existing treatment paradigms with regard to these two conditions in particular. However, more investigation is required to work out these advantages with the greater and more extensive analyses.


 

Abstract 32 | pdf Downloads 11

References

[1] B. B. Boland, "Peptide-YY3-36/glucagon-like peptide-1 combination treatment of obese diabetic mice improves insulin sensitivity associated with recovered pancreatic β-cell function and synergistic activation of discrete hypothalamic and brainstem neuronal circuitries," Molecular Metabolism, vol. 55, p. 101392, 2022.
[2] M. H. M.D., "The role of GLP-1 in postprandial glucose metabolism after bariatric surgery: a narrative review of human GLP-1 receptor antagonist studies," Surgery for Obesity and Related Diseases, vol. 17, no. 7, pp. 1383-1391, 2021.
[3] N. Perakakis, "Circulating levels of five proglucagon-derived peptides in response to intravenous or oral glucose or lipids and to a mixed-meal in subjects with normal weight, overweight, and obesity," Clinical Nutrition, vol. 41, no. 9, pp. 1969-1976, 2022.
[4] K. E. Elkind-Hirsch, "Postpartum treatment with liraglutide in combination with metformin versus metformin monotherapy to improve metabolic status and reduce body weight in overweight/obese women with recent gestational diabetes: A double-blind, randomized, placebo-controlled," Journal of Diabetes and its Complications, vol. 34, no. 4, p. 107548, 2020.
[5] J. D. Watkins, "Protein- and Calcium-Mediated GLP-1 Secretion: A Narrative Review," Advances in Nutrition, vol. 12, no. 6, pp. 2540-2552, 2021.
[6] P. W. G. M.D., "The relation between postprandial glucagon-like peptide-1 release and insulin sensitivity before and after bariatric surgery in humans with class II/III obesity," Surgery for Obesity and Related Diseases, vol. 17, no. 8, pp. 1440-1448, 2021.
[7] J. Watkins, "Glucagon-like peptide-1 secretion in people with versus without type 2 diabetes: a systematic review and meta-analysis of cross-sectional studies," Metabolism, vol. 140, p. 155375, 2023.
[8] H. Huber, "Dietary impact on fasting and stimulated GLP-1 secretion in different metabolic conditions – a narrative review," The American Journal of Clinical Nutrition, vol. 119, no. 3, pp. 599-627, 2024.
[9] F. Keyhani-Nejad, "Endogenously released GIP reduces and GLP-1 increases hepatic insulin extraction," Peptides, vol. 125, p. 170231, 2020.
[10] J. F. A. Model, "Physiological and pharmacological actions of glucagon like peptide-1 (GLP-1) in domestic animals," Veterinary and Animal Science, vol. 16, p. 100245, 2022.
[11] S. M. Vivanco-Maroto, "CCK and GLP-1 response on enteroendocrine cells of semi-dynamic digests of hydrolyzed and intact casein," Food Research International, vol. 171, p. 113047, 2023.
[12] B. L. Panaro, "Intestine-selective reduction of Gcg expression reveals the importance of the distal gut for GLP-1 secretion," Molecular Metabolism, vol. 37, p. 100990, 2020.
[13] J.-P. Krieger, "Intestinal glucagon-like peptide-1 effects on food intake: Physiological relevance and emerging mechanisms," Peptides, vol. 131, p. 170342, 2020.
[14] J. J. Lim, "Intra-pancreatic fat is associated with high circulating glucagon and GLP-1 concentrations following whey protein ingestion in overweight women with impaired fasting glucose: A randomised controlled trial," Diabetes Research and Clinical Practice, vol. 207, p. 111084, 2024.
[15] A. Sridhar, "GLP-1 receptor agonism and GIP receptor antagonism induce substantial alterations in enteroendocrine and islet cell populations in obese high fat fed mice," Peptides, vol. 169, p. 171093, 2023.
[16] J. Xu, "Engineering a potent and long-acting GLP-1/Y2 receptor dual agonist as a multi-agonist therapy for diabetes and obesity," Peptides, vol. 169, p. 171073, 2023.
[17] H. Carslake, "Investigation of glucagon-like peptide-1 response to six oral carbohydrates in ponies," The Veterinary Journal, vol. 305, p. 106110, 2024.
[18] J. J. Holst, "New Lessons from the gut: Studies of the role of gut peptides in weight loss and diabetes resolution after gastric bypass and sleeve gastrectomy," Peptides, vol. 176, p. 171199, 2024.