1
|
Nazari P, Pozzilli P. Type 2 diabetes and Covid-19: Lessons learnt, unanswered questions and hints for the future. Diabetes Res Clin Pract 2023; 204:110896. [PMID: 37683768 DOI: 10.1016/j.diabres.2023.110896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/10/2023]
Abstract
Type 2 diabetes (T2DM) and COVID-19 represent a considerable burden of disease for patients and healthcare systems. New evidence is transpiring detailing the existence of a bidirectional relationship between T2DM and COVID-19. Alongside the acute influence of pre-existing T2DM on the course of COVID-19 and the exacerbation of dysglycemia following acute infection, long-term sequalae resulting from the synergistic interplay between the two is emerging, namely the development of COVID-induced diabetes and long-COVID in patients with pre-existing diabetes. This review presents our current understanding of the bidirectionality between these two conditions with a view to highlighting questions which remain unanswered and suggesting avenues for future research. In doing so, it emphasises critical gaps where concentrated research efforts are likely to yield the most beneficial improvements in understanding of the relationship between the two conditions, translating to tangible optimisations in care for the affected population.
Collapse
Affiliation(s)
- Parsa Nazari
- St.Bartholomew's and the London School of Medicine, Queen Mary, University of London, London, United Kingdom
| | - Paolo Pozzilli
- Centre of Immunobiology, The Blizard Institute, St. Bartholomew's and the London School of Medicine, Queen Mary University of London, London, United Kingdom.
| |
Collapse
|
2
|
Piovani D, Tsantes AG, Bonovas S. Prognostic Role of Neutrophil-to-Lymphocyte Ratio in Patients with COVID-19. J Clin Med 2022; 11:jcm11164688. [PMID: 36012928 PMCID: PMC9410484 DOI: 10.3390/jcm11164688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 08/09/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Daniele Piovani
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Andreas G. Tsantes
- Laboratory of Haematology and Blood Bank Unit, “Attiko” University Hospital, School of Medicine, National and Kapodistrian University of Athens, 12462 Athens, Greece
- Microbiology Department, “Saint Savvas” Oncology Hospital, 11522 Athens, Greece
| | - Stefanos Bonovas
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20090 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
- Correspondence:
| |
Collapse
|
3
|
Sharma D, Bhaskar SMM. Prognostic Role of the Platelet-Lymphocyte Ratio in Acute Ischemic Stroke Patients Undergoing Reperfusion Therapy: A Meta-Analysis. J Cent Nerv Syst Dis 2022; 14:11795735221110373. [PMID: 35860715 PMCID: PMC9290168 DOI: 10.1177/11795735221110373] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Both inflammation and thrombotic/hemostatic mechanisms may play a role in acute ischemic stroke (AIS) pathogenesis, and a biomarker, such as the platelet-to-lymphocyte ratio (PLR), considering both mechanisms may be of clinical utility. Objectives This meta-analysis sought to examine the effect of PLR on functional outcomes, early neurological changes, bleeding complications, mortality, and adverse outcomes in AIS patients treated with reperfusion therapy (RT). Design Systematic Review and Meta-Analysis Data Sources and Methods Individual studies were retrieved from the PubMed/Medline, EMBASE and Cochrane databases. References thereof were also consulted. Data were extracted using a standardised data sheet, and systematic reviews and meta-analyses on the association of admission (pre-RT) or delayed (post-RT) PLR with defined clinical and safety outcomes were conducted. In the case of multiple delayed PLR timepoints, the timepoint closest to 24 hours was selected. Results Eighteen studies (n=4878) were identified for the systematic review, of which 14 (n=4413) were included in the meta-analyses. PLR collected at admission was significantly negatively associated with 90-day good functional outcomes (SMD=−.32; 95% CI = −.58 to −.05; P=.020; z=−2.328), as was PLR collected at delayed timepoints (SMD=−.43; 95% CI = −.54 to −.32; P<.0001; z=−7.454). PLR at delayed timepoints was also significantly negatively associated with ENI (SMD=−.18; 95% CI = −.29 to −.08; P=.001. Conversely, the study suggested that a higher PLR at delayed timepoints may be associated with radiological bleeding and mortality. The results varied based on the type of RT administered. Conclusions A higher PLR is associated with worse outcomes after stroke in terms of morbidity, mortality, and safety outcomes after stroke.
Collapse
Affiliation(s)
- Divyansh Sharma
- Global Health Neurology and Translational Neuroscience Laboratory, Sydney and Neurovascular Imaging Laboratory, Clinical Sciences Stream, Ingham Institute for Applied Medical Research, Sydney, NSW, Australia.,University of New South Wales (UNSW), South Western Sydney Clinical School, Sydney, NSW, Australia
| | - Sonu M M Bhaskar
- Global Health Neurology and Translational Neuroscience Laboratory, Sydney and Neurovascular Imaging Laboratory, Clinical Sciences Stream, Ingham Institute for Applied Medical Research, Sydney, NSW, Australia.,University of New South Wales (UNSW), South Western Sydney Clinical School, Sydney, NSW, Australia.,Department of Neurology & Neurophysiology, Liverpool Hospital and South Western Sydney Local Health District (SWSLHD), Sydney, NSW, Australia.,NSW Brain Clot Bank, NSW Health Pathology, NSW, Sydney, Australia
| |
Collapse
|
4
|
Önal U, Gülhan M, Demirci N, Özden A, Erol N, Işık S, Gülten S, Atalay F, Çöplü N. Prognostic value of neutrophile-to-lymphocyte ratio (NLR) and lactate dehydrogenase (LDH) levels for geriatric patients with COVID-19. BMC Geriatr 2022; 22:362. [PMID: 35468761 PMCID: PMC9036513 DOI: 10.1186/s12877-022-03059-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/14/2022] [Indexed: 12/04/2022] Open
Abstract
Aim In this study it was aimed to evaluate the prognostic factors for the geriatric patients with confirmed COVID-19 in a tertiary-care hospital at Kastamonu region of Turkey. Method Patients (≥65-year-old) who had PCR positivity for COVID-19 between March 2020 and April 2020 in our center were recorded retrospectively. A p value less than 0.05 was considered significant. Ethical committee approval was given from the Bolu University with decision number 2020/176. Results There were a total of 100 patients (44% female). In-hospital mortality was recorded as 7%. In univariate analysis for 1 month mortality, diabetes mellitus (p = 0.038), leucocyte count (p = 0.005), neutrophile count (p = 0.02), neutrophile-to-lymphocyte ratio (NLR) (p < 0.001), thrombocyte-to-lymphocyte ratio (TLR) (p = 0.001), C-reactive protein (CRP) (p = 0.002), lactate dehydrogenase (LDH) (p = 0.001), sequential organ failure assessment (SOFA) score (p = 0.001) and qSOFA score (p = 0.002) were found as independent risk factors. On admission, one point increase of NLR (p = 0.014, odds ratio (OR) = 1.371, 95% CI = 1.067–1.761) and one point increase of LDH (p = 0.047, OR = 1.011, 95% CI = 1.001–1.023) were associated with mortality on day 30 according to logistic regression analysis. The cut-off values were found as > 7.8 for NLR (83.33% sensitivity, 97.7% specificity) and > 300 U/L for LDH (100% sensitivity, 79.31% specificity) regarding the prediction of 30-day mortality. Conclusion In order to improve clinical management and identify the geriatric patients with COVID-19 who have high risk for mortality, NLR and LDH levels on admission might be useful prognostic tools.
Collapse
Affiliation(s)
- Uğur Önal
- Department of Infectious Diseases and Clinical Microbiology, Kastamonu Training and Research Hospital, Kastamonu, Turkey. .,Department of Infectious Diseases and Clinical Microbiology, Uludag University, Faculty of Medicine, Bursa, Turkey.
| | - Muhammet Gülhan
- Department of Infectious Diseases and Clinical Microbiology, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Neşe Demirci
- Department of Infectious Diseases and Clinical Microbiology, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Ahmet Özden
- Department of Radiology, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Nazlı Erol
- Department of Pulmonary Diseases, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Sema Işık
- Department of Internal Medicine, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Sedat Gülten
- Department of Biochemistry, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Fatma Atalay
- Department of Ear, Nose and Throat, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Nilay Çöplü
- Department of Microbiology, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| |
Collapse
|
5
|
Sharma D, Spring KJ, Bhaskar SMM. Role of Neutrophil-Lymphocyte Ratio in the Prognosis of Acute Ischaemic Stroke After Reperfusion Therapy: A Systematic Review and Meta-analysis. J Cent Nerv Syst Dis 2022; 14:11795735221092518. [PMID: 35492740 PMCID: PMC9052237 DOI: 10.1177/11795735221092518] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 03/21/2022] [Indexed: 12/22/2022] Open
Abstract
Background Inflammation may mediate response to acute reperfusion therapy (RT) in acute
cerebral ischaemia. Neutrophil-lymphocyte ratio (NLR), an inflammatory
biomarker, may play an important role in acute ischaemic stroke (AIS)
prognostication. Objective This meta-analysis sought to examine the effect of NLR on functional
outcomes, mortality and adverse outcomes in AIS patients receiving RT. Methods Individual studies were retrieved from PubMed/Medline, EMBASE and Cochrane
databases. Data were extracted using a standardised data sheet and
meta-analysis on association of admission (pre-RT) or delayed (post-RT) NLR
with clinical/safety outcomes after RT was conducted. Results Thirty-five studies (n = 10 308) were identified for the systematic review
with 27 (n = 8537) included in the meta-analyses. Lower admission NLR was
associated with good functional outcomes (GFOs), defined as 3-month modified
Rankin scale (mRS) 0–2 (SMD = −.46; 95% CI = −.62 to −.29; P < .0001),
mRS 0–1 (SMD = −.44; 95% CI = −.66 to −.22; P < .0001) and early
neurological improvement (ENI) (SMD = −.55; 95 %CI = −.84 to −.25; P <
.0001). Lower delayed admission NLR was also associated with GFOs (SMD =
−.80; 95%CI = −.91 to −.68; P < .0001). Higher admission NLR was
significantly associated with mortality (SMD = .49; 95%CI = .12 to .85; P =
.009), intracerebral haemorrhage (ICH) (SMD = .34; 95% CI = .09 to .59; P =
.007), symptomatic ICH (sICH) (SMD = .48; 95% CI = .07 to .90; P = .022) and
stroke-associated infection or pneumonia (SMD = .85; 95% CI = .50, 1.19; P
< .0001). Higher delayed NLR was significantly associated with sICH (SMD
= 1.40; 95% CI = .60 to 2.19; P = .001), ICH (SMD = .94; 95% CI = .41 to
1.46; P < .0001) and mortality (SMD = 1.12; 95% CI = .57 to 1.67; P <
.0001). There were variations in outcomes across RT groups. Conclusion Higher admission or delayed NLR is significantly associated with worse
morbidity, mortality and safety outcomes in AIS patients receiving RT.
Collapse
Affiliation(s)
- Divyansh Sharma
- Global Health Neurology and Translational Neuroscience Laboratory, Sydney and Neurovascular Imaging Laboratory, Clinical Sciences Stream, Ingham Institute for Applied Medical Research, Sydney, NSW, Australia
- South-Western Sydney Clinical School, University of New South Wales (UNSW), Sydney, NSW, Australia
| | - Kevin J. Spring
- South-Western Sydney Clinical School, University of New South Wales (UNSW), Sydney, NSW, Australia
- NSW Brain Clot Bank, NSW Health Pathology, Sydney, NSW, Australia
- Medical Oncology Group, Liverpool Clinical School, Western Sydney University and Ingham Institute of Applied Medical Research, Sydney, NSW, Australia
| | - Sonu M. M. Bhaskar
- Global Health Neurology and Translational Neuroscience Laboratory, Sydney and Neurovascular Imaging Laboratory, Clinical Sciences Stream, Ingham Institute for Applied Medical Research, Sydney, NSW, Australia
- South-Western Sydney Clinical School, University of New South Wales (UNSW), Sydney, NSW, Australia
- NSW Brain Clot Bank, NSW Health Pathology, Sydney, NSW, Australia
- Department of Neurology & Neurophysiology, Liverpool Hospital and South-Western Sydney Local Health District, Comprehensive Stroke Center, Sydney, NSW, Australia
| |
Collapse
|
6
|
Zarrouk S, Finsterer J. Sinus venous thrombosis as a complication of COVID-19-associated hypercoagulability. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2021; 57:132. [PMID: 34602810 PMCID: PMC8475476 DOI: 10.1186/s41983-021-00387-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/08/2021] [Indexed: 01/29/2023] Open
Abstract
Sinus venous thrombosis (SVT) is an increasingly recognised complication of not only SARS-CoV-2 infections, but also of SARS-CoV-2 vaccinations. SVT is attributed to hypercoagulability, a common complication of COVID-19, disregarding the severity of the infection. Hypercoagulability in COVID-19 is explained by direct activation of platelets, enhancing coagulation, by direct infection and indirect activation of endothelial cells by SARS-CoV-2, shifting endothelial cells from an anti-thrombotic to a pro-thrombotic state, by direct activation of complement pathways, promoting thrombin generation, or by immune thrombocytopenia, which also generates a thrombogenic state. Since SVT may occur even in anticoagulated COVID-19 patients and may have an unfavourable outcome, all efforts must be made to prevent this complication or to treat it accurately.
Collapse
Affiliation(s)
- Sinda Zarrouk
- University of Tunis El Manar and Genomics Platform, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Josef Finsterer
- Klinik Landstrasse, Messerli Institute, Postfach 20, 1180 Vienna, Austria
| |
Collapse
|
7
|
Bloom CI, Johnston SL. Decline in respiratory and cardiac admissions during the COVID-19 pandemic: What is the role of common respiratory virus infections? Respirology 2021; 26:1010-1011. [PMID: 34427013 PMCID: PMC8662067 DOI: 10.1111/resp.14138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 08/16/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Chloe I Bloom
- National Heart and Lung Institute, Imperial College London, London, UK
| | | |
Collapse
|