[1] Muller LM, Gorter KJ, Hak E, et al.Increased risk of common infections in patients with type 1 and type 2 diabetes mellitus[J]. Clin Infect Dis, 2005, 41(3): 281-288. [2] Luzi L, Radaelli MG.Influenza and obesity: its odd relationship and the lessons for COVID-19 pandemic[J]. Acta Diabetol, 2020, 57(6): 759-764. [3] Lighter J, Phillips M, Hochman S, et al.Obesity in Patients Younger Than 60 Years Is a Risk Factor for COVID-19 Hospital Admission[J]. Clin Infect Dis, 2020, 71(15): 896-897. [4] Bhutani S, Cooper JA.COVID-19-Related Home Confinement in Adults: Weight Gain Risks and Opportunities[J]. Obesity (Silver Spring), 2020, 28(9): 1576-1577. [5] Maciejewski ML, Arterburn DE, Van Scoyoc L, et al.Bariatric Surgery and Long-term Durability of Weight Loss[J]. JAMA Surg, 2016, 151(11): 1046-1055. [6] Schauer PR, Bhatt D L, Kirwan JP, et al.Bariatric Surgery versus Intensive Medical Therapy for Diabetes-5-Year Outcomes[J]. N Engl J Med, 2017, 376(7): 641-651. [7] Aminian A, Fathalizadeh A, Tu C, et al.Association of prior metabolic and bariatric surgery with severity of coronavirus disease 2019 (COVID-19) in patients with obesity[J]. Surg Obes Relat Dis, 2021, 17(1): 208-214. [8] Uccelli M, Cesana GC, Ciccarese F, et al.“COVID-19 and Obesity: Postoperative Risk in Patients Who Have Undergone Bariatric Surgery. Preliminary Report from High Volume Center in Italy (Lombardy)”[J]. Obes Surg, 2020, 30(12): 5119-5122. [9] Purdy AC, Hohmann SF, Nguyen NT.Outcomes of obese patients hospitalized with COVID-19: the impact of prior bariatric surgery[J]. Surg Obes Relat Dis, 2022, 18(1): 35-40. [10] Iannelli A, Bouam S, Schneck AS, et al.The Impact of Previous History of Bariatric Surgery on Outcome of COVID-19. A Nationwide Medico-Administrative French Study[J]. Obes Surg, 2021, 31(4): 1455-1463. [11] Blanchard C, Perennec T, Smati S, et al.History of bariatric surgery and COVID-19 outcomes in patients with type 2 diabetes: Results from the CORONADO study[J]. Obesity (Silver Spring), 2022, 30(3): 599-605. [12] Marchesi F, Valente M, Ricco M, et al.Effects of Bariatric Surgery on COVID-19: a Multicentric Study from a High Incidence Area[J]. Obes Surg, 2021, 31(6): 2477-2488. [13] Moradpour G, Amini M, Moeinvaziri N, et al.Bariatric Surgery and COVID-19: What We Have Learned from the Pandemic in Iran: a Retrospective Observational Cohort Study[J]. Obes Surg, 2022, 32(1): 18-25. [14] Jenkins M, Maranga G, Wood GC, et al.Prior bariatric surgery in COVID-19-positive patients may be protective[J]. Surg Obes Relat Dis, 2021, 17(11): 1840-1845. [15] Hadi YB, Mann R, Sohail AH, et al.Prior Bariatric Surgery is Associated with a Reduced Risk of Poor Outcomes in COVID-19: Propensity Matched Analysis of a Large Multi-institutional Research Network[J]. Obes Surg, 2022, 32(2): 237-244. [16] Chen G, Mainous A, Ayzengart A, et al.Association Between Bariatric Surgery and Severe COVID-19 Outcomes in Florida[J]. Obes Surg, 2022, 32(11): 3807-3810. [17] Van Der Voort PHJ, Moser J, Zandstra DF, et al. Leptin levels in SARS-CoV-2 infection related respiratory failure: A cross-sectional study and a pathophysiological framework on the role of fat tissue[J]. Heliyon, 2020, 6(8): e04696. [18] Bhatraju PK, Ghassemieh BJ, Nichols M, et al.Covid-19 in Critically Ill Patients in the Seattle Region - Case Series[J]. N Engl J Med, 2020, 382(21): 2012-2022. [19] Chetboun M, Raverdy V, Labreuche J, et al.BMI and pneumonia outcomes in critically ill covid-19 patients: An international multicenter study[J]. Obesity (Silver Spring), 2021, 29(9): 1477-1486. [20] Shin SW.Weight and Metabolic Outcomes 12 Years after Gastric Bypass[J]. N Engl J Med, 2018, 378(1): 95. [21] Alsumali A, Al-Hawag A, Bairdain S, et al.The impact of bariatric surgery on pulmonary function: a meta-analysis[J]. Surg Obes Relat Dis, 2018, 14(2): 225-236. [22] Caussy C, Wallet F, Laville M, et al.Obesity is Associated with Severe Forms of COVID-19[J]. Obesity (Silver Spring), 2020, 28(7): 1175. [23] Al-Benna S.Association of high level gene expression of ACE2 in adipose tissue with mortality of COVID-19 infection in obese patients[J]. Obes Med, 2020, 19: 100283. [24] Kristem L, Recamonde-Mendoza M, Cigerza GC, et al.Roux-en-Y Gastric Bypass Downregulates Angiotensin-Converting Enzyme 2 (ACE2) Gene Expression in Subcutaneous White Adipose Tissue: A Putative Protective Mechanism Against Severe COVID-19[J]. Obes Surg, 2021, 31(6): 2831-2834. [25] Moradpour G, Amini M, Moeinvaziri N, et al.Bariatric Surgery and COVID-19: What We Have Learned from the Pandemic in Iran: a Retrospective Observational Cohort Study[J]. Obesity Surgery, 2022, 32(1): 18-25. [26] Yu HH, Qin C, Chen M, et al.D-dimer level is associated with the severity of COVID-19[J]. Thromb Res, 2020, 195: 219-225. [27] Rostami M, Mansouritorghabeh H.D-dimer level in COVID-19 infection: a systematic review[J]. Expert Rev Hematol, 2020, 13(11): 1265-1275. [28] Zeng F, Huang Y, Guo Y, et al.Association of inflammatory markers with the severity of COVID-19: A meta-analysis[J]. Int J Infect Dis, 2020, 96: 467-474. [29] De Leeuw AJM, Oude Luttikhuis MAM, Wellen AC, et al.Obesity and its impact on COVID-19[J]. J Mol Med (Berl), 2021, 99(7): 899-915. [30] Moschen AR, Molnar C, Geiger S, et al.Anti-inflammatory effects of excessive weight loss: potent suppression of adipose interleukin 6 and tumour necrosis factor alpha expression[J]. Gut, 2010, 59(9): 1259-1264. [31] Holdstock C, Lind L, Engstrom BE, et al.CRP reduction following gastric bypass surgery is most pronounced in insulin-sensitive subjects[J]. Int J Obes (Lond), 2005, 29(10): 1275-1280. [32] Frikke-Schmidt H, Zamarron BF, O'rourke RW, et al. Weight loss independent changes in adipose tissue macrophage and T cell populations after sleeve gastrectomy in mice[J]. Mol Metab, 2017, 6(4): 317-326. [33] Zhang H, Wang Y, Zhang J, et al.Bariatric surgery reduces visceral adipose inflammation and improves endothelial function in type 2 diabetic mice[J]. Arterioscler Thromb Vasc Biol, 2011, 31(9): 2063-2069. [34] Chen PY, Lu CW, Lee YH, et al.Reduced risk of pneumonia and influenza infection after bariatric surgery: a retrospective cohort study among patients with nondiabetic obesity in Taiwan[J]. Surg Obes Relat Dis, 2023, 19(10):1169-1176. |