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Cai M, Zhang Y, Gao J, Dilimulati D, Bu L, Cheng X, Du L, Zhou D, Zhu J, Qu S, Zhang M. Predictive Factors of Menstrual Recovery After Laparoscopic Sleeve Gastrectomy in Polycystic Ovary Syndrome Women with Obesity. Diabetes Metab Syndr Obes 2023; 16:1755-1766. [PMID: 37334183 PMCID: PMC10276569 DOI: 10.2147/dmso.s411573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/01/2023] [Indexed: 06/20/2023] Open
Abstract
Objective To explore the predictors of menstrual recovery in polycystic ovary syndrome (PCOS) women with obesity following laparoscopic sleeve gastrectomy (LSG). Methods A total of 88 PCOS patients with obesity and 76 control patients with obesity aged 18-45 years were enrolled between May 2013 and December 2020. PCOS was diagnosed using the Rotterdam diagnostic criteria (2003). Anthropometric measurements, biochemical parameters, sex hormones, and circulating fibrinogen-like protein 1 (FGL-1) levels were collected before and six-month after LSG. The data on postoperative menstrual status, body weight, and fertility were obtained through telephone follow-ups for all individuals with PCOS. Results Patients with PCOS were followed up for at least six months after surgery, and the mean follow-up time was 3.23 years. At 6 months after LSG, circulating total testosterone (TT), calculated free testosterone (cFT), and FGL-1 levels declined significantly. The mean percent excess weight loss (%EWL) and percent total weight loss (%TWL) in PCOS patients at the final follow-up was 97.52% ± 33.90% and 31.65% ± 10.31%, respectively. The proportion of regular menstruation in PCOS patients significantly increased within six months (75.86% vs 0.03% at baseline). In the logistic regression analysis, time from PCOS diagnosis (P=0.007), body mass index (BMI) (P=0.007), TT (P=0.038) at baseline were demonstrated to be independent predictive factors for the regular menstruation in women with PCOS and obesity within 6 months after LSG. Conclusion In PCOS patients with obesity, time from PCOS diagnosis, BMI, and TT levels at baseline were independently and negatively associated with menstrual recovery within 6 months after LSG, which could be applied in preoperative evaluation.
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Affiliation(s)
- Meili Cai
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Yuqin Zhang
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Jingyang Gao
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Diliqingna Dilimulati
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Le Bu
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
- National Metabolic Management Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Xiaoyun Cheng
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
- National Metabolic Management Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Lei Du
- National Metabolic Management Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
- Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Donglei Zhou
- National Metabolic Management Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
- Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Jiangfang Zhu
- National Metabolic Management Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
- Department of Gastrointestinal Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Shen Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
- National Metabolic Management Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
| | - Manna Zhang
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
- National Metabolic Management Center, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, 200072, People’s Republic of China
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Mollan SP, Mitchell JL, Yiangou A, Ottridge RS, Alimajstorovic Z, Cartwright DM, Hickman SJ, Markey KA, Singhal R, Tahrani AA, Frew E, Brock K, Sinclair AJ. Association of Amount of Weight Lost After Bariatric Surgery With Intracranial Pressure in Women With Idiopathic Intracranial Hypertension. Neurology 2022; 99:e1090-e1099. [PMID: 35790425 PMCID: PMC9536743 DOI: 10.1212/wnl.0000000000200839] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 04/22/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES The idiopathic intracranial hypertension randomized controlled weight trial (IIH:WT) established that weight loss through bariatric surgery significantly reduced intracranial pressure when compared with a community weight management intervention. This substudy aimed to evaluate the amount of weight loss required to reduce intracranial pressure and to explore the effect of different bariatric surgical approaches. METHODS IIH:WT was a multicenter randomized controlled trial. Adult women with active idiopathic intracranial hypertension and a body mass index ≥35 kg/m2 were randomized to bariatric surgery or a community weight management intervention (1:1). This per-protocol analysis evaluated the relationship between intracranial pressure, weight loss, and the weight loss methods. A linear hierarchical regression model was used to fit the trial outcomes, adjusted for time, treatment arm, and weight. RESULTS Sixty-six women were included, of whom 23 had received bariatric surgery by 12 months; the mean age was 31 (SD 8.7) years in the bariatric surgery group and 33.2 (SD 7.4) years in the dietary group. Baseline weight and intracranial pressure were similar in both groups with a mean weight of 119.5 (SD 24.1) and 117.9 (SD 19.5) kg and mean lumbar puncture opening pressure of 34.4 (SD 6.3) and 34.9 (SD 5.3) cmCSF in the bariatric surgery and dietary groups, respectively. Weight loss was significantly associated with reduction in intracranial pressure (R2 = 0.4734, p ≤ 0.0001). Twenty-four percentage of weight loss (weight loss of 13.3 kg [SD 1.76]) was associated with disease remission (intracranial pressure [ICP] ≤ 25 cmCSF). Roux-en-Y gastric bypass achieved greater, more rapid, and sustained ICP reduction compared with other methods. DISCUSSION The greater the weight loss, the greater the reduction in ICP was documented. Twenty four percentage of weight loss was associated with disease remission. Such magnitude of weight loss was unlikely to be achieved without bariatric surgery, and hence, consideration of referral to a bariatric surgery program early for those with active idiopathic intracranial hypertension may be appropriate. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02124486; ISRCTN registry number ISRCTN40152829; doi.org/10.1186/ISRCTN40152829. CLASSIFICATION OF EVIDENCE This study provides Class II evidence that weight loss after bariatric surgery results in reduction in intracranial pressure in adult women with idiopathic intracranial hypertension. This study is Class II because of the use of a per-protocol analysis.
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Affiliation(s)
- Susan P Mollan
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom.
| | - James L Mitchell
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Andreas Yiangou
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Ryan S Ottridge
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Zerin Alimajstorovic
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - David M Cartwright
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Simon J Hickman
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Keira A Markey
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Rishi Singhal
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Abd A Tahrani
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Emma Frew
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Kristian Brock
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
| | - Alexandra Jean Sinclair
- From the Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Metabolic Neurology (J.L.M., A.Y., Z.A., K.A.M., A.J.S.), Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham; Department of Neurology (J.L.M., A.Y., A.J.S.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Centre for Endocrinology (J.L.M., A.Y., A.A.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners; Birmingham Clinical Trials Unit (R.S.O.); Institute of Metabolism and Systems Research (Z.A., D.M.C., A.A.T., A.J.S.), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Neurology (S.J.H.), Royal Hallamshire Hospital, Sheffield, United Kingdom; Upper GI Unit and Minimally Invasive Unit (R.S.), Birmingham Heartlands Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham; Institute of Cancer and Genomic Sciences (R.S.), University of Birmingham; Department of Endocrinology (A.A.T.), University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital; Health Economics Unit (E.F.), Institute of Applied Health Research, University of Birmingham; and Cancer Research UK Clinical Trials Unit (K.B.), University of Birmingham, Birmingham, United Kingdom
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