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Rafey MF, Abdalgwad R, O'Shea PM, Foy S, Claffey B, Davenport C, O'Keeffe DT, Finucane FM. Changes in the Leptin to Adiponectin Ratio Are Proportional to Weight Loss After Meal Replacement in Adults With Severe Obesity. Front Nutr 2022; 9:845574. [PMID: 35662920 PMCID: PMC9158748 DOI: 10.3389/fnut.2022.845574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Hypocaloric diets are known to induce changes in adipokine secretion, but the influence of a low energy liquid diet (LELD) on the leptin: adiponectin ratio (LAR), a measure of insulin resistance and cardiovascular risk, has not previously been investigated in patients with severe obesity. We conducted a prospective, single-center cohort study of adults with severe obesity (defined as body mass index (BMI) ≥40 kgm−2, or ≥35 kgm−2 with co-morbidities) who completed a 24-week milk-based LELD. We measured leptin, adiponectin and LAR at the start and on completion of the programme. Of 120 patients who started, 52 (43.3 %) completed the programme. Their mean age was 50.3 ± 11.2 (range 18–74) years, 29 (55.8 %) were female and 20 (38.5 %) had type 2 diabetes mellitus (T2DM). Weight decreased from 148.2 ± 39.6 to 125.4 ± 34.8 kg and BMI decreased from 52.4 ± 11.1 to 44.3 ± 9.8 kgm−2, respectively (all p < 0.001). In patients with T2DM, HbA1c decreased from 60.0 ± 17.4 to 47.5 ± 15.5 mmol/mol (p < 0.001). Leptin decreased (from 87.2 [48.6, 132.7] to 39.1 [21.0, 76.4] ng/ml) and adiponectin increased (from 5.6 [4.5, 7.5] to 7.1 [5.5, 8.5] μg/ml), with a reduction in LAR from 15 [8.4, 22.4] to 5.7 [3.0, 9.1] ng/μg (all p < 0.001), indicating decreased insulin resistance. The percentage weight lost was associated with the percentage reduction in LAR (ß = 2.9 [1.7, 4.1], p < 0.001) and this association was stronger in patients with T2DM. Patients with severe obesity who completed a milk-based LELD had a substantial reduction in LAR, consistent with decreased insulin resistance and cardiovascular risk, proportional to weight loss.
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Affiliation(s)
- Mohammed Faraz Rafey
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- HRB Clinical Research Facility, National University of Ireland Galway, Galway, Ireland
- Department of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Razk Abdalgwad
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- HRB Clinical Research Facility, National University of Ireland Galway, Galway, Ireland
- Department of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Paula Mary O'Shea
- Department of Clinical Biochemistry, Galway University Hospitals, Galway, Ireland
| | - Siobhan Foy
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
| | - Brid Claffey
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
| | - Colin Davenport
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- HRB Clinical Research Facility, National University of Ireland Galway, Galway, Ireland
- Department of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Derek Timothy O'Keeffe
- HRB Clinical Research Facility, National University of Ireland Galway, Galway, Ireland
- Department of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Francis Martin Finucane
- Bariatric Medicine Service, Centre for Diabetes, Endocrinology and Metabolism, Galway University Hospitals, Galway, Ireland
- HRB Clinical Research Facility, National University of Ireland Galway, Galway, Ireland
- Department of Medicine, National University of Ireland Galway, Galway, Ireland
- *Correspondence: Francis Martin Finucane
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