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Elfassy M, Gewarges M, Bagga A, Basuita M, Bennett S, Janusonis I, McLean B, Nadarajah S, Osei-Yeboah C, Rosh J, Sklar J, Tanaka D, Teitelbaum D, Scales D, Luk A, Dorian P. ARE BEST PRACTICE GUIDELINES INFORMING WITHDRAWAL OF LIFE SUSTAINING THERAPY FOLLOWED AFTER CARDIAC ARREST? Can J Cardiol 2022. [DOI: 10.1016/j.cjca.2022.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Malik A, Gewarges M, Pezzutti O, Allan KS, Samman A, Akioyamen LE, Ruiz M, Brijmohan A, Basuita M, Tanaka D, Scales D, Luk A, Lawler P, Kalra S, Dorian P. Association between sex and survival after non-traumatic out of hospital cardiac arrest: A systematic review and meta-analysis. Resuscitation 2022; 179:172-182. [PMID: 35728744 DOI: 10.1016/j.resuscitation.2022.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 01/03/2023]
Abstract
BACKGROUND Existing studies have shown conflicting results regarding the relationship of sex with survival after out of hospital cardiac arrest (OHCA). This systematic review evaluates the association of female sex with survival to discharge and survival to 30 days after non-traumatic OHCA. METHODS We searched Medline, Embase, CINAHL, Web of Science, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews from inception through June 2021 for studies evaluating female sex as a predictor of survival in adult patients with non-traumatic cardiac arrest. Random-effects inverse variance meta-analyses were performed to calculate pooled odds ratios (ORs) with 95% confidence intervals (CI). The GRADE approach was used to assess evidence quality. RESULTS Thirty studies including 1,068,788 patients had female proportion of 41%. There was no association for female sex with survival to discharge (OR 1.03, 95% CI 0.95-1.12; I2=89%). Subgroup analysis of low risk of bias studies demonstrated increased survival to discharge for female sex (OR 1.20, 95% CI 1.18-1.23; I2=0%) and with high certainty, the absolute increase in survival was 2.2% (95% CI 0.1%-3.6%). Female sex was not associated with survival to 30 days post-OHCA (OR 1.02, 95% CI 0.92-1.14; I2=79%). CONCLUSIONS In adult patients experiencing OHCA, with high certainty in the evidence from studies with low risk of bias, female sex had a small absolute difference for the outcome survival to discharge and no difference in survival at 30 days. Future models that aim to stratify risk of survival post-OHCA should focus on sex-specific factors as opposed to sex as an isolated prognostic factor.
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Affiliation(s)
- Abdullah Malik
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Mena Gewarges
- Division of Cardiology, St. Michael's Hospital, Toronto, ON, Canada
| | - Olivia Pezzutti
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | | | - Anas Samman
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Leo E Akioyamen
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Michael Ruiz
- Division of Cardiology, St. Michael's Hospital, Toronto, ON, Canada
| | - Angela Brijmohan
- Department of Medicine, Queen's University, Kingston, ON, Canada
| | - Manpreet Basuita
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Dustin Tanaka
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Damon Scales
- Division of Critical Care, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Adriana Luk
- Division of Cardiology, Toronto General Hospital, Toronto, ON, Canada
| | - Patrick Lawler
- Division of Cardiology, Toronto General Hospital, Toronto, ON, Canada
| | - Sanjog Kalra
- Division of Cardiology, Toronto General Hospital, Toronto, ON, Canada
| | - Paul Dorian
- Division of Cardiology, St. Michael's Hospital, Toronto, ON, Canada.
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Basuita M, Fidler LM. Myositis Antibodies and Interstitial Lung Disease. J Appl Lab Med 2022; 7:240-258. [PMID: 34996093 DOI: 10.1093/jalm/jfab108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/16/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND Interstitial lung disease (ILD) comprises a heterogeneous group of inflammatory and fibrotic conditions, often resulting in progressive lung function decline and increased mortality. Connective tissue disease (CTD) should be considered in all patients with ILD, as distinguishing between CTD-ILD and other forms of fibrotic lung disease has important therapeutic and prognostic implications. The idiopathic inflammatory myopathies (IIM) represent a CTD subtype of growing interest to ILD experts. The expansion and availability of myositis-specific and myositis-associated antibody testing has allowed for improved disease detection and characterization. CONTENT In this review, we highlight the relationship between myositis antibodies and ILD. Select forms of IIM, such as the antisynthetase syndrome and clinically amyopathic dermatomyositis can present with rapidly progressive ILD, warranting timely disease diagnosis and management. Disease phenotypes, prevalence, laboratory testing, prognosis, and management strategies are described according to select myositis antibodies. SUMMARY Myositis antibodies provide valuable information for clinicians managing patients with ILD. This review aims to increase awareness of their role in disease detection, pathophysiology, and possibly therapeutics.
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Affiliation(s)
- Manpreet Basuita
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Lee M Fidler
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Department of Medicine, Division of Respirology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Department of Medicine, Division of Respirology, University Health Network, Toronto, ON, Canada
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Lim PX, Patel DR, Poisson KE, Basuita M, Tsai C, Lyndaker AM, Hwang BJ, Lu AL, Weiss RS. Genome Protection by the 9-1-1 Complex Subunit HUS1 Requires Clamp Formation, DNA Contacts, and ATR Signaling-independent Effector Functions. J Biol Chem 2015; 290:14826-40. [PMID: 25911100 DOI: 10.1074/jbc.m114.630640] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Indexed: 01/30/2023] Open
Abstract
The RAD9A-HUS1-RAD1 (9-1-1) complex is a heterotrimeric clamp that promotes checkpoint signaling and repair at DNA damage sites. In this study, we elucidated HUS1 functional residues that drive clamp assembly, DNA interactions, and downstream effector functions. First, we mapped a HUS1-RAD9A interface residue that was critical for 9-1-1 assembly and DNA loading. Next, we identified multiple positively charged residues in the inner ring of HUS1 that were crucial for genotoxin-induced 9-1-1 chromatin localization and ATR signaling. Finally, we found two hydrophobic pockets on the HUS1 outer surface that were important for cell survival after DNA damage. Interestingly, these pockets were not required for 9-1-1 chromatin localization or ATR-mediated CHK1 activation but were necessary for interactions between HUS1 and its binding partner MYH, suggesting that they serve as interaction domains for the recruitment and coordination of downstream effectors at damage sites. Together, these results indicate that, once properly loaded onto damaged DNA, the 9-1-1 complex executes multiple, separable functions that promote genome maintenance.
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Affiliation(s)
- Pei Xin Lim
- From the Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853 and
| | - Darshil R Patel
- From the Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853 and
| | - Kelsey E Poisson
- From the Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853 and
| | - Manpreet Basuita
- From the Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853 and
| | - Charlton Tsai
- From the Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853 and
| | - Amy M Lyndaker
- From the Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853 and
| | - Bor-Jang Hwang
- the Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - A-Lien Lu
- the Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Robert S Weiss
- From the Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853 and
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