Vitamin D levels as an important predictor for type 2 diabetes mellitus and weight regain post-sleeve gastrectomy

Aladel, A, Murphy, AM ORCID: https://orcid.org/0000-0001-5554-1558, Abraham, J, Shah, N, Barber, TM, Ball, G ORCID: https://orcid.org/0000-0001-5828-7129, Menon, V, Piya, MK and McTernan, PG ORCID: https://orcid.org/0000-0001-9023-0261, 2022. Vitamin D levels as an important predictor for type 2 diabetes mellitus and weight regain post-sleeve gastrectomy. Nutrients, 14 (10): 2052.

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Abstract

Weight Loss Surgery (WLS), including sleeve-gastrectomy (SG), results in significant weight loss and improved metabolic health in severe obesity (BMI ≥ 35 kg/m2). Previous studies suggest post-operative health benefits are impacted by nutrient deficiencies, such as Vitamin D (25(OH)D) deficiency, while it is currently unknown whether nutrient levels may actually predict post-surgery outcomes. As such, this study investigated whether 25(OH)D levels could predict metabolic improvements in patients who underwent SG. Patients with severe obesity (n = 309; 75% female) undergoing SG participated in this ethics-approved, non-randomized retrospective cohort study. Anthropometry, clinical data, 25(OH)D levels and serum markers were collected at baseline, 6-, 12- and 18-months post-surgery. SG surgery resulted in significant improvements in metabolic health at 6- and 12-months post-surgery compared with baseline, as expected. Patients with higher baseline 25(OH)D had significantly lower HbA1c levels post-surgery (p < 0.01) and better post-surgical T2DM outcomes, including reduced weight regain (p < 0.05). Further analysis revealed that baseline 25(OH)D could predict HbA1c levels, weight regain and T2DM remission one-year post-surgery, accounting for 7.5% of HbA1c divergence (p < 0.01). These data highlight that higher circulating 25(OH)D levels are associated with significant metabolic health improvements post-surgery, notably, that such baseline levels are able to predict those who attain T2DM remission. This highlights the importance of 25(OH)D as a predictive biomarker of post-surgery benefits.

Item Type:	Journal article
Alternative Title:	Vitamin D as predictor of metabolic outcomes
Publication Title:	Nutrients
Creators:	Aladel, A., Murphy, A.M., Abraham, J., Shah, N., Barber, T.M., Ball, G., Menon, V., Piya, M.K. and McTernan, P.G.
Publisher:	MDPI
Date:	13 May 2022
Volume:	14
Number:	10
Identifiers:	Number Type 10.3390/nu14102052 DOI 1547642 Other
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	24 May 2022 10:18
Last Modified:	24 May 2022 10:18
URI:	https://irep.ntu.ac.uk/id/eprint/46360

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