ReviewNature reviews. Endocrinology2021
COVID-19 and diabetes mellitus: from pathophysiology to clinical management.
Review in Nature reviews. Endocrinology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 499 papers, 14 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
499 citing papers in PubMed, 14 syntheses or guidelines pooled it, 1,037 citations in OpenAlex.
- Diabetes Mellitus and COVID-19 in Adults: A Systematic Review of Pathophysiological Connections, Clinical Outcomes, and Therapeutic Considerations.International journal of molecular sciences · 2026Pooled it
- Diabetes Mellitus, a Leading Comorbidity in COVID-19: an Insight on Pathophysiology, Molecular Interactions, and Comprehensive Management.Current microbiology · 2025Pooled it
- Type 2 diabetes mellitus as a predictor of severe outcomes in COVID-19 - a systematic review and meta-analyses.BMC infectious diseases · 2025Pooled it
- Pooled it
- Mucorales: A systematic review to inform the World Health Organization priority list of fungal pathogens.Medical mycology · 2024Pooled it
- The involvement of the dysfunctional insulin receptor signaling system in long COVID patients with diabetes and chronic pain and its implications for the clinical management using taVNS.Frontiers in pain research (Lausanne, Switzerland) · 2024Pooled it
- Pediatric endocrinopathies related to COVID-19: an update.World journal of pediatrics : WJP · 2023Pooled it
- Association Between Diabetes and Mortality Among Adult Patients Hospitalized With COVID-19: A Cohort Study of Hospitalized Adults in Ontario, Canada, and Copenhagen, Denmark.Canadian journal of diabetes · 2023Pooled it
- Global Diabetes Prevalence in COVID-19 Patients and Contribution to COVID-19- Related Severity and Mortality: A Systematic Review and Meta-analysis.Diabetes care · 2023Pooled it
- Impact of COVID-19 Pandemic on Healthcare Utilization among Patients with Type 2 Diabetes Mellitus: A Systematic Review.International journal of environmental research and public health · 2023Pooled it
- ApoE4 associated with severe COVID-19 outcomes via downregulation of ACE2 and imbalanced RAS pathway.Journal of translational medicine · 2023Pooled it
- Noninsulin-based antihyperglycemic medications in patients with diabetes and COVID-19: A systematic review and meta-analysis.Journal of diabetes · 2023 · on this mapPooled it
- Effect of continuing the use of renin-angiotensin system inhibitors on mortality in patients hospitalized for coronavirus disease 2019: a systematic review, meta-analysis, and meta-regression analysis.BMC infectious diseases · 2023Pooled it
- Systemic inflammation index, disease severity, and mortality in patients with COVID-19: a systematic review and meta-analysis.Frontiers in immunology · 2023Pooled it
- "What Can I Eat?" Healthy Choices for American Indian and Alaska Native Adults With Type 2 Diabetes: Outcomes From a Randomized Waitlist-Controlled Trial of a Diabetes Nutrition Education Program.Journal of nutrition education and behavior · 2025Trial
- A quantitative metabolic signature of host response during SARS-CoV-2 infection and recovery.iScience · 2026Article
- Underweight Status Amplifies Respiratory Infection Mortality in Diabetes: Findings From a Nationwide Cohort Study.Journal of cachexia, sarcopenia and muscle · 2026Article
- Clinical Outcomes with the Use of Dipeptidyl Peptidase-4 (DPP-4) Inhibitor Among Patients with Diabetes Mellitus and COVID-19: A Systematic Review of Observational Studies.Journal of clinical medicine · 2026Review
- COVID-19 and diabetic ketoacidosis: National outcomes, predictors, and resource utilization in the United States.Journal of diabetes investigation · 2026Article
- Association Between Statin Use, Cytokine Storm, and Clinical Outcomes in COVID-19 Patients with Diabetes.Biomedicines · 2026Article
439 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
4 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Initial studies found increased severity of coronavirus disease 2019 (COVID-19), caused by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), in patients with diabetes mellitus. Furthermore, COVID-19 might also predispose infected individuals to hyperglycaemia. Interacting with other risk factors, hyperglycaemia might modulate immune and inflammatory responses, thus predisposing patients to severe COVID-19 and possible lethal outcomes. Angiotensin-converting enzyme 2 (ACE2), which is part of the renin-angiotensin-aldosterone system (RAAS), is the main entry receptor for SARS-CoV-2; although dipeptidyl peptidase 4 (DPP4) might also act as a binding target. Preliminary data, however, do not suggest a notable effect of glucose-lowering DPP4 inhibitors on SARS-CoV-2 susceptibility. Owing to their pharmacological characteristics, sodium-glucose cotransporter 2 (SGLT2) inhibitors might cause adverse effects in patients with COVID-19 and so cannot be recommended. Currently, insulin should be the main approach to the control of acute glycaemia. Most available evidence does not distinguish between the major types of diabetes mellitus and is related to type 2 diabetes mellitus owing to its high prevalence. However, some limited evidence is now available on type 1 diabetes mellitus and COVID-19. Most of these conclusions are preliminary, and further investigation of the optimal management in patients with diabetes mellitus is warranted.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.