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Stone JR, Nair V, Fishbein GA. The minimal criteria for active arteritis in a temporal artery biopsy. Cardiovasc Pathol 2024; 70:107622. [PMID: 38365063 DOI: 10.1016/j.carpath.2024.107622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 02/10/2024] [Indexed: 02/18/2024] Open
Affiliation(s)
- James R Stone
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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Ashktorab H, Oskrochi G, Challa SR, Chirumamilla LG, Saroya S, Dusmatova S, Shayegh N, Nair V, Senthilvelan K, Byer D, Morrison N, Grossi B, Barclay A, Smith T, Watson K, Rashid M, Rashid R, Deverapalli M, Latella G, Carethers JM, Youssef A, Brim H. Age, Gender, and Liver Enzyme Impact Hospital Stay in COVID-19 Minority Patient with Cancer in the USA: Does Race Matters in the Pandemic? Ann Clin Med Case Rep 2024; 13:7. [PMID: 38633403 PMCID: PMC11022387] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Patients with cancer are known to have a poor prognosis when infected with SARS-CoV-2 infection. We aimed in this study to assess health outcomes in COVID-19 patients with different cancers in comparison to non-cancer COVID-19 patients from different centers in the United States (US). We evaluated medical records of 1,943 COVID-19 Cancer patients from 3 hospitals admitted between December 2019 to October 2021 and compared them with non-cancer COVID-19 patients. Among 1,943 hospitalized COVID-19 patients, 18.7% (n=364) have an active or previous history of cancer. Among these 364 cancer patients, 222 were African Americans (61.7%) and 121 were Caucasians (33.2%). Cancer patients had significantly longer hospitalization compared to controls (8.24 vs 6.7 days). Overall, Lung cancer is associated with high mortality. Patients with a previous history of cancer were more prone to death (p=0.04) than active cancer patients. In univariate and multivariate analyses, predictors of death among cancer patients were male sex, older age, presence of dyspnea, elevated troponin, elevated AST (0.001) and ALT (0.05), low albumin (p=0.04) and mechanical ventilation (p=0.001). Patients with a previous history of cancer were more prone to death when compared to active cancer COVID-19 patients. Early recognition of cancer COVID-19 patients' death-associated risk factors can help determine appropriate treatment and management plans for better prognosis and outcome.
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Affiliation(s)
- H Ashktorab
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - G Oskrochi
- College of Engineering and Technology, American University of the Middle East, Kuwait
| | - S R Challa
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - L G Chirumamilla
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - S Saroya
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - S Dusmatova
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - N Shayegh
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - V Nair
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - K Senthilvelan
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - D Byer
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - N Morrison
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - B Grossi
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - A Barclay
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - T Smith
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - K Watson
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - M Rashid
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - R Rashid
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - M Deverapalli
- Department of Medicine, GI Division, Cancer Center, Howard University Hospital, Washington DC, USA
| | - G Latella
- Gastroenterology Unit, Division of Gastroenterology, Hepatology, and Nutrition, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - J M Carethers
- Division of Gastroenterology & Hepatology, Department of Medicine and Moores Cancer Center, UC San Diego, USA
| | - A Youssef
- Division of Gastroenterology and Hepatology, Department of Internal Medicine; Department of Human Genetics and Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
| | - H Brim
- Department of Pathology and Cancer Center, Department of Biochemistry & Molecular Biology, Howard University College of Medicine, Washington DC, USA
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Chih S, Tavoosi A, Nair V, Chong AY, Džavík V, Aleksova N, So DY, deKemp RA, Amara I, Wells GA, Bernick J, Overgaard CB, Celiker-Guler E, Mielniczuk LM, Stadnick E, McGuinty C, Ross HJ, Beanlands RSB. Cardiac PET Myocardial Blood Flow Quantification Assessment of Early Cardiac Allograft Vasculopathy. JACC Cardiovasc Imaging 2023:S1936-878X(23)00466-7. [PMID: 37999656 DOI: 10.1016/j.jcmg.2023.10.003] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/25/2023] [Accepted: 10/12/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Positron emission tomography (PET) has demonstrated utility for diagnostic and prognostic assessment of cardiac allograft vasculopathy (CAV) but has not been evaluated in the first year after transplant. OBJECTIVES The authors sought to evaluate CAV at 1 year by PET myocardial blood flow (MBF) quantification. METHODS Adults at 2 institutions enrolled between January 2018 and March 2021 underwent prospective 3-month (baseline) and 12-month (follow-up) post-transplant PET, endomyocardial biopsy, and intravascular ultrasound examination. Epicardial CAV was assessed by intravascular ultrasound percent intimal volume (PIV) and microvascular CAV by endomyocardial biopsy. RESULTS A total of 136 PET studies from 74 patients were analyzed. At 12 months, median PIV increased 5.6% (95% CI: 3.6%-7.1%) with no change in microvascular CAV incidence (baseline: 31% vs follow-up: 38%; P = 0.406) and persistent microvascular disease in 13% of patients. Median capillary density increased 30 capillaries/mm2 (95% CI: -6 to 79 capillaries/mm2). PET myocardial flow reserve (2.5 ± 0.7 vs 2.9 ± 0.8; P = 0.001) and stress MBF (2.7 ± 0.6 vs 2.9 ± 0.6; P = 0.008) increased, and coronary vascular resistance (CVR) (49 ± 13 vs 47 ± 11; P = 0.214) was unchanged. At 12 months, PET and PIV had modest correlation (stress MBF: r = -0.35; CVR: r = 0.33), with lower stress MBF and higher CVR across increasing PIV tertiles (all P < 0.05). Receiver-operating characteristic curves for CAV defined by upper-tertile PIV showed areas under the curve of 0.74 for stress MBF and 0.73 for CVR. CONCLUSIONS The 1-year post-transplant PET MBF is associated with epicardial CAV, supporting potential use for early noninvasive CAV assessment. (Early Post Transplant Cardiac Allograft Vasculopahty [ECAV]; NCT03217786).
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Affiliation(s)
- Sharon Chih
- Heart Failure and Transplantation, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada.
| | - Anahita Tavoosi
- Cardiac Imaging, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Aun Yeong Chong
- Interventional Cardiology, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Vladimír Džavík
- Ted Rogers Centre for Heart Research at the Peter Munk Cardiac Centre, Toronto, Ontario, Canada
| | - Natasha Aleksova
- Ted Rogers Centre for Heart Research at the Peter Munk Cardiac Centre, Toronto, Ontario, Canada; Women's College Hospital Research Institute, Toronto, Ontario, Canada
| | - Derek Y So
- Interventional Cardiology, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Robert A deKemp
- Cardiac Imaging, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Ines Amara
- BEaTS Research, Division of Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - George A Wells
- Cardiovascular Research Methods Centre, Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Jordan Bernick
- Cardiovascular Research Methods Centre, Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Christopher B Overgaard
- Ted Rogers Centre for Heart Research at the Peter Munk Cardiac Centre, Toronto, Ontario, Canada
| | - Emel Celiker-Guler
- Cardiac Imaging, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Lisa M Mielniczuk
- Heart Failure and Transplantation, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Ellamae Stadnick
- Heart Failure and Transplantation, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Caroline McGuinty
- Heart Failure and Transplantation, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Heather J Ross
- Ted Rogers Centre for Heart Research at the Peter Munk Cardiac Centre, Toronto, Ontario, Canada
| | - Rob S B Beanlands
- Cardiac Imaging, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
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Nair V, Fishbein GA, Padera R, Seidman MA, Castonguay M, Leduc C, Tan CD, Rodriguez ER, Maleszewski JJ, Miller D, Romero M, Lomasney J, d'Amati G, De Gaspari M, Rizzo S, Angelini A, Basso C, Litovsky S, Buja LM, Stone JR, Veinot JP. Consensus statement on the processing, interpretation and reporting of temporal artery biopsy for arteritis. Cardiovasc Pathol 2023; 67:107574. [PMID: 37683739 DOI: 10.1016/j.carpath.2023.107574] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
Giant cell arteritis (GCA) is the most common systemic vasculitis in adults in Europe and North America, typically involving the extra-cranial branches of the carotid arteries and the thoracic aorta. Despite advances in noninvasive imaging, temporal artery biopsy (TAB) remains the gold standard for establishing a GCA diagnosis. The processing of TAB depends largely on individual institutional protocol, and the interpretation and reporting practices vary among pathologists. To address this lack of uniformity, the Society for Cardiovascular Pathology formed a committee tasked with establishing consensus guidelines for the processing, interpretation, and reporting of TAB specimens, based on the existing literature. This consensus statement includes a discussion of the differential diagnoses including other forms of arteritis and noninflammatory changes of the temporal artery.
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Affiliation(s)
- Vidhya Nair
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada.
| | - Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Robert Padera
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Michael A Seidman
- Laboratory Medicine Program, University Health Network, and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Mathieu Castonguay
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Charles Leduc
- Department of Pathology and Cellular Biology, University of Montreal, Montreal, Quebec, Canada
| | - Carmela D Tan
- Department of Pathology, Cleveland Clinic, Cleveland, OH, USA
| | | | - Joseph J Maleszewski
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Dylan Miller
- Intermountain Central Laboratory, Salt Lake City, UT, USA
| | - Maria Romero
- Servicio de Digestivo, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Jon Lomasney
- Department of Pathology, Northwestern Memorial Hospital, Feinberg School of Medicine, Northwestern University, Chicago, USA
| | - Giulia d'Amati
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University, Rome, Italy
| | - Monica De Gaspari
- Cardiovascular Pathology, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Stefania Rizzo
- Cardiovascular Pathology, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Annalisa Angelini
- Cardiovascular Pathology, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Cristina Basso
- Cardiovascular Pathology, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Silvio Litovsky
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Louis Maximilian Buja
- Department of Pathology and Laboratory Medicine, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - James R Stone
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | - John P Veinot
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Tesolin D, Nair V. Conventionally Fractionated vs. Hypofractionated Radiotherapy for Treatment of Unresectable Pancreatic Cancer: Local Control and Survival Outcomes in a Retrospective Single-Institutional Analysis. Int J Radiat Oncol Biol Phys 2023; 117:e344. [PMID: 37785199 DOI: 10.1016/j.ijrobp.2023.06.2410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Unresectable pancreatic cancer (UPC) is associated with dismal survival outcomes, with a reported median survival of 8-12 months. The role of radiotherapy (RT) and the choice of optimal fractionation remains unclear. Our objective was analyzing the outcomes associated with local radiotherapy as well as determine the best radiotherapeutic approach to treat these patients. MATERIALS/METHODS From a database of 209 radiation plans of patients treated for pancreatic cancer in a single institution between August 2007 to August 2021, patients with UPC were selected for this REB approved retrospective study. RESULTS From the 209 plans, 136 unique patients were identified who had RT for UPC. The mean age of the cohort was 67.6 years, 10% were >80 years and 37% were female. Median follow-up was 9.3 months. 54 patients had distant metastases at the time of RT and were analyzed separately. Outcomes where analyzed based on whether patients received Conventionally fractionated RT (CFRT) (defined as >15 fractions) (n = 23 (17%)), Hypofractionated RT (HypoRT) (defined as ≤15 fractions and EQD2<40Gy for α/β = 3) (n = 40 (29%)) and those treated with Stereotactic Body RT (SBRT) (defined as ≤5 fractions and EQD2≥40Gy for α/β = 3) (n = 19 (14%)). The mean overall survival (OS) and freedom from progression (FFP) in the SBRT cohort was 17.2 and 7.4 months respectively, in the CFRT cohort was 22.6 and 9.9 months respectively and in the HypoRT cohort was 11.4 and 4.9 months respectively. All CFRT patients received chemotherapy. Mean OS was drastically lower in SBRT and HypoRT patients who did not receive any chemotherapy (11.9 and 3.4 months respectively). Patients with metastatic disease at presentation and receiving HypoRT had mean OS of 13.4 months. The average EQD2 for the cohorts were 45.4 Gy, 49.2 Gy and 30.3 Gy for CFRT, SBRT and HypoRT respectively. CONCLUSION Our study demonstrates that CFRT with concurrent chemotherapy offers better therapeutic outcomes in patients with UPC compared to HypoRT. The role of dose escalated SBRT needs to be explored as an equal alternative.
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Affiliation(s)
- D Tesolin
- Ottawa Hospital Cancer Centre, Ottawa, ON, Canada
| | - V Nair
- The Ottawa Hospital Cancer Centre, Ottawa, ON, Canada
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Parida PK, Marquez-Palencia M, Ghosh S, Khandelwal N, Kim K, Nair V, Liu XZ, Vu HS, Zacharias LG, Gonzalez-Ericsson PI, Sanders ME, Mobley BC, McDonald JG, Lemoff A, Peng Y, Lewis C, Vale G, Halberg N, Arteaga CL, Hanker AB, DeBerardinis RJ, Malladi S. Limiting mitochondrial plasticity by targeting DRP1 induces metabolic reprogramming and reduces breast cancer brain metastases. Nat Cancer 2023; 4:893-907. [PMID: 37248394 DOI: 10.1038/s43018-023-00563-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 04/17/2023] [Indexed: 05/31/2023]
Abstract
Disseminated tumor cells with metabolic flexibility to utilize available nutrients in distal organs persist, but the precise mechanisms that facilitate metabolic adaptations remain unclear. Here we show fragmented mitochondrial puncta in latent brain metastatic (Lat) cells enable fatty acid oxidation (FAO) to sustain cellular bioenergetics and maintain redox homeostasis. Depleting the enriched dynamin-related protein 1 (DRP1) and limiting mitochondrial plasticity in Lat cells results in increased lipid droplet accumulation, impaired FAO and attenuated metastasis. Likewise, pharmacological inhibition of DRP1 using a small-molecule brain-permeable inhibitor attenuated metastatic burden in preclinical models. In agreement with these findings, increased phospho-DRP1 expression was observed in metachronous brain metastasis compared with patient-matched primary tumors. Overall, our findings reveal the pivotal role of mitochondrial plasticity in supporting the survival of Lat cells and highlight the therapeutic potential of targeting cellular plasticity programs in combination with tumor-specific alterations to prevent metastatic recurrences.
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Affiliation(s)
- Pravat Kumar Parida
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Mauricio Marquez-Palencia
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Suvranil Ghosh
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Nitin Khandelwal
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Kangsan Kim
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Vidhya Nair
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Xiao-Zheng Liu
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Hieu S Vu
- Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Lauren G Zacharias
- Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | | | - Melinda E Sanders
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bret C Mobley
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jeffrey G McDonald
- Center for Human Nutrition and Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Andrew Lemoff
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yan Peng
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Cheryl Lewis
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Gonçalo Vale
- Center for Human Nutrition and Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Nils Halberg
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Carlos L Arteaga
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ariella B Hanker
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ralph J DeBerardinis
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Srinivas Malladi
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Kappelman MD, Lewis JD, Zhang X, Lin FC, Weisbein L, Chen W, Burris J, Dorand JE, Parlett LE, Haynes K, Nair V, Kaul AF, Dobes A, Long MD. Comparing Patient-Reported Outcomes Among Anti-TNF-Experienced Patients with Crohn's Disease Initiating Vedolizumab Versus Ustekinumab. Dig Dis Sci 2023:10.1007/s10620-023-07942-0. [PMID: 37115362 DOI: 10.1007/s10620-023-07942-0] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/30/2023] [Indexed: 04/29/2023]
Abstract
BACKGROUND Primary and secondary non-response to anti-tumor necrosis factor (TNF) therapy is common in patients with Crohn's disease (CD), yet limited research has compared the effectiveness of subsequent biological therapy. OBJECTIVE We sought to compare the effectiveness of vedolizumab and ustekinumab in anti-TNF-experienced patients with CD, focusing on patient-prioritized patient-reported outcomes (PROs). METHODS We conducted a prospective, internet-based cohort study nested within IBD Partners. We identified anti-TNF-experienced patients initiating with CD vedolizumab or ustekinumab and analyzed PROs reported approximately 6 months later (minimum 4 months, maximum 10 months). Co-primary outcomes were Patient-Reported Outcome Measurement Information System (PROMIS) domains of Fatigue and Pain Interference. Secondary outcomes included patient-reported short Crohn's disease activity index (sCDAI), treatment persistence, and corticosteroid use. Inverse probability of treatment weighting (IPTW) was used to control for a number of potential confounders and incorporated into linear and logistic regression models for continuous and categorical outcomes, respectively. RESULTS Overall, 141 vedolizumab and 219 ustekinumab initiators were included in our analysis. After adjustment, we found no differences between treatment groups in our primary outcomes of Pain Interference or Fatigue or the secondary outcome of sCDAI. However, vedolizumab was associated with lower treatment persistence (OR 0.4, 95% CI 0.2-0.6) and higher corticosteroid use at follow-up assessment (OR 1.7, 95% CI 1.1-2.6). DISCUSSION Among anti-TNF experienced patients with CD, Pain Interference or Fatigue was not significantly different 4-10 months after starting ustekinumab or vedolizumab. However, reduced steroid use and increased persistence suggest superiority of ustekinumab for non-PRO outcomes.
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Affiliation(s)
- Michael D Kappelman
- University of North Carolina at Chapel Hill, Bioinformatics Building, 130 Mason Farm Rd., Campus Box 7229, Chapel Hill, NC, 27599-7555, USA.
| | - J D Lewis
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - X Zhang
- University of North Carolina at Chapel Hill, Bioinformatics Building, 130 Mason Farm Rd., Campus Box 7229, Chapel Hill, NC, 27599-7555, USA
| | - F C Lin
- University of North Carolina at Chapel Hill, Bioinformatics Building, 130 Mason Farm Rd., Campus Box 7229, Chapel Hill, NC, 27599-7555, USA
| | - L Weisbein
- University of North Carolina at Chapel Hill, Bioinformatics Building, 130 Mason Farm Rd., Campus Box 7229, Chapel Hill, NC, 27599-7555, USA
| | - W Chen
- University of North Carolina at Chapel Hill, Bioinformatics Building, 130 Mason Farm Rd., Campus Box 7229, Chapel Hill, NC, 27599-7555, USA
| | - J Burris
- Yale School of Medicine, New Haven, CT, USA
| | - J E Dorand
- Crohn's & Colitis Foundation, New York, NY, USA
| | | | | | - V Nair
- Medical Outcomes Management and the Practice Research Network (PRACNET), Sharon, MA, USA
| | - A F Kaul
- Medical Outcomes Management and the Practice Research Network (PRACNET), Sharon, MA, USA
| | - A Dobes
- Crohn's & Colitis Foundation, New York, NY, USA
| | - M D Long
- University of North Carolina at Chapel Hill, Bioinformatics Building, 130 Mason Farm Rd., Campus Box 7229, Chapel Hill, NC, 27599-7555, USA
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Chih S, Tavoosi A, Nair V, Chong A, Džavík V, Aleksova N, So D, Amara I, Wells G, Bernick J, Overgaard C, Mielniczuk L, Stadnick E, Ross H, Beanlands R. Cardiac Pet Flow Quantification Assessment of Early Cardiac Allograft Vasculopathy. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.059] [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: 04/05/2023] Open
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ALAKWAA F, McCown P, Naik A, Schaub J, Menon R, Otto E, Nair V, Eddy S, Pyle L, Hartman J, Hodgin J, Nelson R, Brosius Division F, Kretzler M, Bjornstad P. WCN23-0471 THE ENHANCEMENT OF METALLOTHIONEIN BIND METAL PATHWAY WITH SGLT2 INHIBITORS IN KIDNEY PROXIMAL TUBULES OF ADOLESCENTS WITH TYPE 2 DIABETES USING SINGLE CELL RNA-SEQ DATA. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.432] [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: 03/22/2023] Open
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Pitcher T, Kammer M, Nair V. PP01.35 Validation of a High-Specificity Blood-Based Autoantibody Test to Detect Lung Cancer in Pulmonary Nodules. J Thorac Oncol 2023. [DOI: 10.1016/j.jtho.2022.09.061] [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: 01/30/2023]
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Parida PK, Marquez-Palencia M, Kaushik AK, Kim K, Nair V, Sudderth J, Vu H, Zacharias L, DeBerardinis R, Malladi S. Optimized protocol for stable isotope tracing and steady-state metabolomics in mouse HER2+ breast cancer brain metastasis. STAR Protoc 2022; 3:101345. [PMID: 35496802 PMCID: PMC9048131 DOI: 10.1016/j.xpro.2022.101345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Analyzing the metabolic dependencies of tumor cells is vital for cancer diagnosis and treatment. Here, we describe a protocol for 13C-stable glucose and glutamine isotope tracing in mice HER2+ breast cancer brain metastatic lesions. We describe how to inject cancer cells intracardially to generate brain metastatic lesions in mice. We then detail how to perform 13C-stable isotope infusion in mice with established brain metastasis. Finally, we outline steps for sample collection, processing for metabolite extraction, and analyzing mass spectrometry data. For complete details on the use and execution of this protocol, please refer to Parida et al. (2022). Intracardiac injection of tumor cells to generate brain metastasis in mice 13C-glucose and glutamine infusion in mice with brain metastasis Collect and process brain metastatic lesions for metabolite extraction Mass spectrometry analysis, data processing, and interpretation
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12
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Talaat IM, Yakout NM, Soliman AS, Venkatachalam T, Vinod A, Eldohaji L, Nair V, Hareedy A, Kandil A, Abdel-Rahman WM, Hamoudi R, Saber-Ayad M. Evaluation of Galanin Expression in Colorectal Cancer: An Immunohistochemical and Transcriptomic Study. Front Oncol 2022; 12:877147. [PMID: 35707368 PMCID: PMC9190230 DOI: 10.3389/fonc.2022.877147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 04/27/2022] [Indexed: 01/02/2023] Open
Abstract
Colorectal cancer (CRC) represents around 10% of all cancers, with an increasing incidence in the younger age group. The gut is considered a unique organ with its distinctive neuronal supply. The neuropeptide, human galanin, is widely distributed in the colon and expressed in many cancers, including the CRC. The current study aimed to explore the role of galanin at different stages of CRC. Eighty-one CRC cases (TNM stages I – IV) were recruited, and formalin-fixed paraffin-embedded samples were analyzed for the expression of galanin and galanin receptor 1 (GALR1) by immunohistochemistry (IHC). Galanin intensity was significantly lower in stage IV (n= 6) in comparison to other stages (p= 0.037 using the Mann-Whitney U test). Whole transcriptomics analysis using NGS was performed for selected samples based on the galanin expression by IHC [early (n=5) with high galanin expression and late (n=6) with low galanin expression]. Five differentially regulated pathways (using Absolute GSEA) were identified as drivers for tumor progression and associated with higher galanin expression, namely, cell cycle, cell division, autophagy, transcriptional regulation of TP53, and immune system process. The top shared genes among the upregulated pathways are AURKA, BIRC5, CCNA1, CCNA2, CDC25C, CDK2, CDK6, EREG, LIG3, PIN1, TGFB1, TPX2. The results were validated using real-time PCR carried out on four cell lines [two primaries (HCT116 and HT29) and two metastatic (LoVo and SK-Co-1)]. The current study shows galanin as a potential negative biomarker. Galanin downregulation is correlated with advanced CRC staging and linked to cell cycle and division, autophagy, transcriptional regulation of TP53 and immune system response.
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Affiliation(s)
- Iman M. Talaat
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Nada M. Yakout
- Pathology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | | | - Thenmozhi Venkatachalam
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Department of Physiology and Immunology, College of Medicine and Health Science, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Arya Vinod
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Leen Eldohaji
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Vidhya Nair
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Amal Hareedy
- Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Alaa Kandil
- Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Alexandria University, Cairo, Egypt
| | - Wael M. Abdel-Rahman
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Rifat Hamoudi
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Division of Surgery and Interventional Science, University College London, London, United Kingdom
| | - Maha Saber-Ayad
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Pharmacology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
- *Correspondence: Maha Saber-Ayad,
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13
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Ranade AV, Qaisar R, Khan AA, Karim A, Gul MT, Azeem M, Jose J, Ramachandran G, Ibrahim Z, Nair V, Elmoselhi A, Rahman Hassan WA. Pharmacological inhibition of ER stress mitigates testicular pathology in hind‐limb unloaded mice. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r4388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Agostino A, Farmer J, Blanco P, Veinot JP, Nair V. Efficacy of bilateral temporal artery biopsies and sectioning of the entire block of tissue for the diagnosis of Temporal Arteritis. Cardiovasc Pathol 2022; 59:107425. [DOI: 10.1016/j.carpath.2022.107425] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/25/2022] [Accepted: 03/21/2022] [Indexed: 11/03/2022] Open
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15
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Sampathkumar G, Valiyaparambil PP, Kumar H, Bhavani N, Nair V, Menon U, Menon A, Abraham N, Chapla A, Thomas N. Low genetic confirmation rate in South Indian subjects with a clinical diagnosis of maturity-onset diabetes of the young (MODY) who underwent targeted next-generation sequencing for 13 genes. J Endocrinol Invest 2022; 45:607-615. [PMID: 34741762 DOI: 10.1007/s40618-021-01698-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/29/2021] [Indexed: 12/29/2022]
Abstract
PURPOSE To screen for maturity-onset diabetes of the young (MODY) variants in subjects with an early age of onset and positive family history of diabetes mellitus. METHODS 60 subjects with onset of diabetes between 3 and 30 years of age and parental history (onset < 35 years) of diabetes were recruited after excluding autoimmune, pancreatic and syndromic forms of diabetes. Detailed pedigree chart and clinical data were recorded. MODY genetic testing (MODY 1-13) was performed and variant classification was done adhering to the ACMG guidelines. RESULTS Baseline characteristics of subjects were as follows: mean age of onset of diabetes 19.9 ± 7 years, mean duration of diabetes 6.3 ± 6.8 years, BMI 23.3 ± 3 kg/m2 and C-peptide 1.56 ± 1.06 nmol/l. Four out of sixty (6.6%) were positive for variants classifiable as pathogenic/likely pathogenic: one patient with HNF4Ac.691C > T, (p.Arg231Trp), two with HNF 1A c.746C > A(p.Ser249Ter) and c.1340C > T(p.Pro447Leu), and one with ABCC8 c.4544C > T (p.Thr1515Met). MODY 1 and MODY 3 variants were documented in the paediatric age group (< 18 years). CONCLUSION A genetic diagnosis of MODY could be confirmed in only 6.6% (4/60) of patients clinically classifiable as MODY. This is less than that reported in clinically diagnosed MODY subjects of European descent. Newly published population data and more stringent criteria for assessment of pathogenicity and younger age of onset of type 2 diabetes in Indians could have contributed to the lower genetic confirmation rate. Apart from variants in the classical genes (HNF1A, HNF4A), a likely pathogenic variant in a non-classical gene (ABCC8) was noted in this study.
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Affiliation(s)
- G Sampathkumar
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India
| | - P P Valiyaparambil
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India.
| | - H Kumar
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India
| | - N Bhavani
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India
| | - V Nair
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India
| | - U Menon
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India
| | - A Menon
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India
| | - N Abraham
- Department of Endocrinology, Amrita Institute of Medical Sciences, Amrita University, Ponnekara P.O, Cochin, 682041, Kerala, India
| | - A Chapla
- Department of Endocrinology, Christian Medical College, Vellore, Tamil Nadu, India
| | - N Thomas
- Department of Endocrinology, Christian Medical College, Vellore, Tamil Nadu, India
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16
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MATUROSTRAKUL B, Bhaskaran M, Jang H, Nair V, Nair G, Abate M, Teperman L, Grodstein E. POS-781 THROMBOTIC MICROANGIOPATHY IN RENAL TRANSPLANT RECIPIENT WITH NPHS 2 GENE MUTATION. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.817] [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: 11/29/2022] Open
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17
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Parida PK, Marquez-Palencia M, Nair V, Kaushik AK, Kim K, Sudderth J, Quesada-Diaz E, Cajigas A, Vemireddy V, Gonzalez-Ericsson PI, Sanders ME, Mobley BC, Huffman K, Sahoo S, Alluri P, Lewis C, Peng Y, Bachoo RM, Arteaga CL, Hanker AB, DeBerardinis RJ, Malladi S. Metabolic diversity within breast cancer brain-tropic cells determines metastatic fitness. Cell Metab 2022; 34:90-105.e7. [PMID: 34986341 PMCID: PMC9307073 DOI: 10.1016/j.cmet.2021.12.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 08/10/2021] [Accepted: 12/01/2021] [Indexed: 02/07/2023]
Abstract
HER2+ breast cancer patients are presented with either synchronous (S-BM), latent (Lat), or metachronous (M-BM) brain metastases. However, the basis for disparate metastatic fitness among disseminated tumor cells of similar oncotype within a distal organ remains unknown. Here, employing brain metastatic models, we show that metabolic diversity and plasticity within brain-tropic cells determine metastatic fitness. Lactate secreted by aggressive metastatic cells or lactate supplementation to mice bearing Lat cells limits innate immunosurveillance and triggers overt metastasis. Attenuating lactate metabolism in S-BM impedes metastasis, while M-BM adapt and survive as residual disease. In contrast to S-BM, Lat and M-BM survive in equilibrium with innate immunosurveillance, oxidize glutamine, and maintain cellular redox homeostasis through the anionic amino acid transporter xCT. Moreover, xCT expression is significantly higher in matched M-BM brain metastatic samples compared to primary tumors from HER2+ breast cancer patients. Inhibiting xCT function attenuates residual disease and recurrence in these preclinical models.
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Affiliation(s)
- Pravat Kumar Parida
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Mauricio Marquez-Palencia
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Vidhya Nair
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Akash K Kaushik
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Kangsan Kim
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jessica Sudderth
- Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Eduardo Quesada-Diaz
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ambar Cajigas
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Vamsidhara Vemireddy
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Paula I Gonzalez-Ericsson
- Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Melinda E Sanders
- Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Bret C Mobley
- Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Kenneth Huffman
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sunati Sahoo
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Prasanna Alluri
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Cheryl Lewis
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yan Peng
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Robert M Bachoo
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Carlos L Arteaga
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ariella B Hanker
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ralph J DeBerardinis
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Srinivas Malladi
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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18
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Maleszewski JJ, Lai CK, Nair V, Veinot JP. Anatomic considerations and examination of cardiovascular specimens (excluding devices). Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00013-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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19
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Raychaudhuri S, Dieli-Conwright CM, Cheng RK, Barac A, Reding KW, Vasbinder A, Cook KL, Nair V, Desai P, Simon MS. A review of research on the intersection between breast cancer and cardiovascular research in the Women's Health Initiative (WHI). Front Oncol 2022; 12:1039246. [PMID: 37025252 PMCID: PMC10071996 DOI: 10.3389/fonc.2022.1039246] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/29/2022] [Indexed: 04/08/2023] Open
Abstract
Both obesity and metabolic syndrome are linked to increased incidence of type 2 diabetes, cardiovascular disease (CVD), and cancers of the breast (post-menopausal), and other obesity-related cancers. Over the past 50 years, the worldwide prevalence of obesity and metabolic syndrome has increased, with a concomitant higher incidence of associated co-morbidities and mortality. The precise mechanism linking metabolic syndrome to increased cancer incidence is incompletely understood, however, individual components of metabolic syndrome have been linked to increased breast cancer incidence and worse survival. There is a bidirectional relationship between the risk of CVD and cancer due to a high burden of shared risk factors and higher rates of CVD among cancer survivors, which may be impacted by the pro-inflammatory microenvironment associated with metabolic syndrome and cancer-directed therapies. The Women's Health Initiative (WHI) is an excellent resource to study a dual relationship between cancer and CVD (cardio-oncology) with extensive information on risk factors and long-term outcomes. The purpose of this review is to provide an overview of research on cardio-oncology conducted utilizing WHI data with focus on studies evaluating both breast cancer and CVD including shared risk factors and outcomes after cancer. The review also includes results on other obesity related cancers which were included in the analyses of breast cancer, articles looking at cancer after heart disease (reverse cardio-oncology) and the role of Clonal Hematopoiesis of Indeterminate Potential (CHIP) as a shared risk factor between CVD and cancer. A summary of pertinent WHI literature helps to delineate the direction of future research evaluating the relationship between CVD and other cancer sites, and provides information on the opportunity for other novel analyses within the WHI.
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Affiliation(s)
- Sreejata Raychaudhuri
- Department of Oncology, Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
- *Correspondence: Sreejata Raychaudhuri,
| | | | - Richard K. Cheng
- Division of Cardiology, University of Washington, Seattle, WA, United States
| | - Ana Barac
- MedStar Heart and Vascular Institute, Georgetown University, Washington, DC, United States
| | - Kerryn W. Reding
- Department of Biobehavioral Nursing and Health Informatics, School of Nursing, University of Washington, Seattle, WA, United States
| | - Alexi Vasbinder
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Katherine L. Cook
- Department of Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Vidhya Nair
- Department of Hematology/Oncology, Ascension Providence Hospital/Michigan State University College of Human Medicine, Southfield, MI, United States
| | - Pinkal Desai
- Department of Oncology, Weill Cornell Medical College, New York, NY, United States
| | - Michael S. Simon
- Department of Oncology, Karmanos Cancer Institute at Wayne State University, Detroit, MI, United States
- Population Studies and Disparities Research Program, Karmanos Cancer Institute, Detroit, MI, United States
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Armstrong SM, Basso C, Bendeck M, Berthiaume J, Bonafiglia QA, Buja LM, Butany J, d’Amati G, Fishbein GA, Fishbein MC, Giordano C, Gotlieb AI, Hammers J, Hoit B, Jensen B, Kirk J, Lai CK, Lau RP, Lelenwa L, Lyon R, Maleszewski JJ, McDonald M, McManus B, Michaud K, Mitchell RN, Mori M, Nair V, Ottaviani G, Ranek M, Rao V, Rizzo S, Rodriguez ER, Romero ME, Sakamoto A, Sampson B, Santos-Martins C, Sato Y, Schoen FJ, Segura A, Seidman MA, Seki A, Sheikh F, Singaravel S, Stone JR, Stram M, Tan CD, Thavendiranathan P, Thiene G, Tolend M, Vaideeswar P, Veinot JP, Virmani R, Wang J, Willis M, Zhao B. List of contributors. Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00029-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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21
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Parlow S, Cheung M, Verreault-Julien L, Wu KY, Berardi P, Nair V, Di Santo P, Jung RG, Mathew R, Hibbert B. An Unusual Case of Obstructive Shock. JACC Case Rep 2021; 3:1913-1917. [PMID: 34984352 PMCID: PMC8693255 DOI: 10.1016/j.jaccas.2021.10.017] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/20/2021] [Accepted: 10/29/2021] [Indexed: 11/18/2022]
Abstract
A 54-year-old man presented in profound obstructive shock. Investigations revealed a right atrial mass causing severe right ventricular inflow obstruction and compromised cardiac output. The patient was treated with emergency balloon catheter intervention to relieve the obstruction, with resulting hemodynamic stability. The pathology report later returned a positive result for diffuse large B-cell lymphoma. (Level of Difficulty: Intermediate.).
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Affiliation(s)
- Simon Parlow
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Matthew Cheung
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Louis Verreault-Julien
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Kai Yi Wu
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Philip Berardi
- Department of Pathology and Laboratory Medicine, University of Ottawa and Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, University of Ottawa and Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Pietro Di Santo
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Richard G. Jung
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Rebecca Mathew
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Benjamin Hibbert
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
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22
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Molouki A, Ghalyanchilangeroudi A, Abdoshah M, Shoushtari A, Abtin A, Eshtartabadi F, Mahmoudzadeh Akhijahani M, Ziafatikafi Z, Babaeimarzango SS, Allahyari E, Ahmadzadeh L, Fallah Mehrabadi MH, Lim SHE, Rouhani K, Hosseini H, Nair V. Report of a new meq gene size: The first study on genetic characterisation of Marek's disease viruses circulating in Iranian commercial layer and backyard chicken. Br Poult Sci 2021; 63:142-149. [PMID: 34423692 DOI: 10.1080/00071668.2021.1963677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
1. In recent months, several outbreaks with clinical signs of MDV-1 were reported in Iranian parent and laying hen farms, in addition to backyard chickens. Several meq gene sequences from these outbreaks were amplified and molecularly characterised.2. The meq protein sequences revealed three different sizes, namely the standard 339 aa, a shorter form of 338 aa lacking a proline residue at position 191, and a very short (vs) size of 265 aa. Based on sequence and size, the 265 aa meq has never been reported from international research groups before. The protein has only one PPPP repeat motif suggesting it belongs to a highly virulent strain.3. The standard meq sequences showed 100% BLAST identity to the vv+ isolate Polen5. However, the 338 aa form clustered to the clade usually reported from North America.4. This is the first report on genetic analysis of MDV-1 from Iran, but further study is required to obtain a better picture of the diversity and prevalence of different MDV-1 strains circulating in the country's farms, backyard poultry and other bird species.
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Affiliation(s)
- A Molouki
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research, Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - A Ghalyanchilangeroudi
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - M Abdoshah
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research, Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - A Shoushtari
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research, Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - A Abtin
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research, Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - F Eshtartabadi
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research, Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - M Mahmoudzadeh Akhijahani
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research, Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Z Ziafatikafi
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | | | - E Allahyari
- Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - L Ahmadzadeh
- Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - M H Fallah Mehrabadi
- Department of Avian Diseases Research and Diagnostics, Razi Vaccine and Serum Research, Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - S H E Lim
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, Abu Dhabi, United Arab Emirates
| | - K Rouhani
- Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - H Hosseini
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Islamic Azad University, Karaj, Iran
| | - V Nair
- Viral Oncogenesis Group & OIE Marek's Disease Virus Reference Laboratory, Pirbright Institute, Surrey, UK
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Volpini M, Jooya A, La Russa D, Sutherland J, Samant R, Nair V. PO-1730 Feasibility of Virtual Reality-based target volume delineation for craniospinal irradiation. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08181-0] [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: 11/25/2022]
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24
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Gorsi U, Agarwal V, Nair V, Kang M, Kalra N, Sreedhara BC, Gupta R, Rana SS, Dutta U, Sandhu MS. Corrigendum to: "Re: endovascular and percutaneous trans abdominal embolisation of pseudoaneurysms in pancreatitis: an experience from a tertiary care referral centre" [76 (4) e17-e23]. Clin Radiol 2021; 76:629.e19. [PMID: 34045069 DOI: 10.1016/j.crad.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- U Gorsi
- Department of Radiodiagnosis, PGIMER, Chandigarh, India.
| | - V Agarwal
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - V Nair
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - M Kang
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - N Kalra
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - B C Sreedhara
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - R Gupta
- Department of Surgery, PGIMER, Chandigarh, India
| | - S S Rana
- Department of Gastroenterology, PGIMER, Chandigarh, India
| | - U Dutta
- Department of Gastroenterology, PGIMER, Chandigarh, India
| | - M S Sandhu
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
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25
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Smyth LJ, Kilner J, Nair V, Liu H, Brennan E, Kerr K, Sandholm N, Cole J, Dahlström E, Syreeni A, Salem RM, Nelson RG, Looker HC, Wooster C, Anderson K, McKay GJ, Kee F, Young I, Andrews D, Forsblom C, Hirschhorn JN, Godson C, Groop PH, Maxwell AP, Susztak K, Kretzler M, Florez JC, McKnight AJ. Assessment of differentially methylated loci in individuals with end-stage kidney disease attributed to diabetic kidney disease: an exploratory study. Clin Epigenetics 2021; 13:99. [PMID: 33933144 PMCID: PMC8088646 DOI: 10.1186/s13148-021-01081-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/15/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND A subset of individuals with type 1 diabetes mellitus (T1DM) are predisposed to developing diabetic kidney disease (DKD), the most common cause globally of end-stage kidney disease (ESKD). Emerging evidence suggests epigenetic changes in DNA methylation may have a causal role in both T1DM and DKD. The aim of this exploratory investigation was to assess differences in blood-derived DNA methylation patterns between individuals with T1DM-ESKD and individuals with long-duration T1DM but no evidence of kidney disease upon repeated testing to identify potential blood-based biomarkers. Blood-derived DNA from individuals (107 cases, 253 controls and 14 experimental controls) were bisulphite treated before DNA methylation patterns from both groups were generated and analysed using Illumina's Infinium MethylationEPIC BeadChip arrays (n = 862,927 sites). Differentially methylated CpG sites (dmCpGs) were identified (false discovery rate adjusted p ≤ × 10-8 and fold change ± 2) by comparing methylation levels between ESKD cases and T1DM controls at single site resolution. Gene annotation and functionality was investigated to enrich and rank methylated regions associated with ESKD in T1DM. RESULTS Top-ranked genes within which several dmCpGs were located and supported by functional data with methylation look-ups in other cohorts include: AFF3, ARID5B, CUX1, ELMO1, FKBP5, HDAC4, ITGAL, LY9, PIM1, RUNX3, SEPTIN9 and UPF3A. Top-ranked enrichment pathways included pathways in cancer, TGF-β signalling and Th17 cell differentiation. CONCLUSIONS Epigenetic alterations provide a dynamic link between an individual's genetic background and their environmental exposures. This robust evaluation of DNA methylation in carefully phenotyped individuals has identified biomarkers associated with ESKD, revealing several genes and implicated key pathways associated with ESKD in individuals with T1DM.
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Affiliation(s)
- L J Smyth
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK.
| | - J Kilner
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - V Nair
- Internal Medicine, Department of Nephrology, University of Michigan, Ann Arbor, MI, USA
| | - H Liu
- Department of Department of Medicine/ Nephrology, Department of Genetics, Institute of Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - E Brennan
- Diabetes Complications Research Centre, Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - K Kerr
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - N Sandholm
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - J Cole
- Programs in Metabolism and Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Division of Endocrinology and Center for Basic and Translational Obesity Research, Boston Children's Hospital, Boston, MA, USA.,Diabetes Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - E Dahlström
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - A Syreeni
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - R M Salem
- Department of Family Medicine and Public Health, UC San Diego, San Diego, CA, USA
| | - R G Nelson
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ, USA
| | - H C Looker
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ, USA
| | - C Wooster
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - K Anderson
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - G J McKay
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - F Kee
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - I Young
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - D Andrews
- Diabetes Complications Research Centre, Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - C Forsblom
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - J N Hirschhorn
- Programs in Metabolism and Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Division of Endocrinology and Center for Basic and Translational Obesity Research, Boston Children's Hospital, Boston, MA, USA.,Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - C Godson
- Diabetes Complications Research Centre, Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - P H Groop
- Folkhälsan Institute of Genetics, Folkhälsan Research Center, Helsinki, Finland.,Abdominal Center, Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - A P Maxwell
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK.,Regional Nephrology Unit, Belfast City Hospital, Belfast, Northern Ireland, UK
| | - K Susztak
- Department of Department of Medicine/ Nephrology, Department of Genetics, Institute of Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - M Kretzler
- Internal Medicine, Department of Nephrology, University of Michigan, Ann Arbor, MI, USA
| | - J C Florez
- Programs in Metabolism and Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Division of Endocrinology and Center for Basic and Translational Obesity Research, Boston Children's Hospital, Boston, MA, USA.,Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - A J McKnight
- Molecular Epidemiology Research Group, Centre for Public Health, Queen's University Belfast, Belfast, UK
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26
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Elmistekawy E, Nair V, Rubens FD. Skin cancer at median sternotomy scar. Asian Cardiovasc Thorac Ann 2021; 29:970. [PMID: 33818155 PMCID: PMC8564238 DOI: 10.1177/02184923211006864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Elsayed Elmistekawy
- Division of Cardiac Surgery, University of Ottawa Heart Institute, The Ottawa Hospital, Ottawa, Canada
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, Canada
| | - Fraser D Rubens
- Division of Cardiac Surgery, University of Ottawa Heart Institute, The Ottawa Hospital, Ottawa, Canada
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27
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Affiliation(s)
- David H Birnie
- Division of Cardiology University of Ottawa Heart Institute Ottawa Ontario Canada
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine The Ottawa Hospital and University of Ottawa Ottawa Ontario Canada
| | - John P Veinot
- Department of Pathology and Laboratory Medicine The Ottawa Hospital and University of Ottawa Ottawa Ontario Canada
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28
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Flood TA, Bradshaw SH, Veinot JP, Nair V. Cardiac Amyloid - A Hidden Contributor to Cardiac Dysfunction Following Cardiac Surgery: Case Report and Literature Review. Curr Cardiol Rev 2021; 16:350-353. [PMID: 31858904 PMCID: PMC7903502 DOI: 10.2174/1573403x16666191220143547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/09/2019] [Accepted: 12/05/2019] [Indexed: 11/22/2022] Open
Abstract
We present two patients who underwent cardiac surgery followed by post-operative low cardiac output, diastolic dysfunction and resistance to inotropic support. Despite aggressive medical management, both patients died. At autopsy, the hearts were enlarged and showed previously undiagnosed myocardial and vascular amyloidosis. Occult cardiac amyloidosis is an uncommon, often occult, contributor to post-operative complications post cardiac surgery. Pre-operative or intra-operative myocardial biopsy may be useful in patients with unexplained diastolic dysfunction.
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Affiliation(s)
- Trevor A Flood
- Division of Anatomical Pathology, Department of Pathology and Laboratory Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, ON K1H 8L6, Canada
| | - Scott H Bradshaw
- Division of Anatomical Pathology, Department of Pathology and Laboratory Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, ON K1H 8L6, Canada
| | - John P Veinot
- Division of Anatomical Pathology, Department of Pathology and Laboratory Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, ON K1H 8L6, Canada
| | - Vidhya Nair
- Division of Anatomical Pathology, Department of Pathology and Laboratory Medicine, Ottawa Hospital, University of Ottawa, Ottawa, Ontario, ON K1H 8L6, Canada
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29
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Gorsi U, Agarwal V, Nair V, Kang M, Kalra N, Sreedhara BC, Gupta R, Rana SS, Dutta U, Sandhu MS. Endovascular and percutaneous transabdominal embolisation of pseudoaneurysms in pancreatitis: an experience from a tertiary-care referral centre. Clin Radiol 2021; 76:314.e17-314.e23. [PMID: 33526255 DOI: 10.1016/j.crad.2020.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/24/2020] [Indexed: 12/31/2022]
Abstract
AIM To analyse the technical challenges, clinical success, and associated complications of endovascular and percutaneous embolisation of pancreatitis-related pseudoaneurysms. MATERIALS AND METHODS A retrospective study of patients referred for embolisation of pancreatitis-related pseudoaneurysms between January 2014 and March 2019 was conducted. Computed tomography angiography (CTA) was performed to assess the morphology of the aneurysms prior to any intervention. Percutaneous or endovascular embolisation was performed. Details of CTA and methods of embolisation were recorded. Technical success, clinical success, and complications were reported. RESULTS A total of 80 patients (mean age, 40.69 ± 13.41 years, 73 male) underwent embolisation during the study period. Pseudoaneurysms were related to chronic pancreatitis (CP) in 44 (55%) patients and acute pancreatitis (AP) in 36 (45%) patients. Pseudoaneurysms were detected in 65 (81.2%) patients on CTA. The most common site of pseudoaneurysms was gastroduodenal artery (GDA) followed by splenic artery. Seven patients were treated with percutaneous thrombin injection and five were treated with percutaneous glue injection under ultrasound/fluoroscopy guidance. The remaining patients (n=68) underwent catheter angiography with endovascular embolisation. Technical success was achieved in 4/7 (57%) percutaneous thrombin cases and in all the cases (5/5, 100%) with percutaneous glue or endovascular (68/68,100%) embolisation. CONCLUSION Endovascular or percutaneous embolisation of pseudoaneurysms has high technical success with an excellent safety profile.
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Affiliation(s)
- U Gorsi
- Department of Radiodiagnosis, PGIMER, Chandigarh, India.
| | - V Agarwal
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - V Nair
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - M Kang
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - N Kalra
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - B C Sreedhara
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
| | - R Gupta
- Department of Surgery, PGIMER, Chandigarh, India
| | - S S Rana
- Department of Gastroenterology, PGIMER, Chandigarh, India
| | - U Dutta
- Department of Gastroenterology, PGIMER, Chandigarh, India
| | - M S Sandhu
- Department of Radiodiagnosis, PGIMER, Chandigarh, India
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30
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Miller J, Wu Y, Safa R, Marusca G, Bhatti S, Ahluwalia G, Dandashi J, Acevedo HG, Farook N, Scott A, Nair V, Adhami A, Dueweke J, Hebbar S, Ekstrom L. Derivation and validation of the ED-SAS score for very early prediction of mortality and morbidity with acute pancreatitis: a retrospective observational study. BMC Emerg Med 2021; 21:16. [PMID: 33509119 PMCID: PMC7844901 DOI: 10.1186/s12873-021-00410-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Existing scoring systems to predict mortality in acute pancreatitis may not be directly applicable to the emergency department (ED). The objective of this study was to derive and validate the ED-SAS, a simple scoring score using variables readily available in the ED to predict mortality in patients with acute pancreatitis. METHODS This retrospective observational study was performed based on patient data collected from electronic health records across 2 independent health systems; 1 was used for the derivation cohort and the other for the validation cohort. Adult patients who were eligible presented to the ED, required hospital admission, and had a confirmed diagnosis of acute pancreatitis. Patients with chronic or recurrent episodes of pancreatitis were excluded. The primary outcome was 30-day mortality. Analyses tested and derived candidate variables to establish a prediction score, which was subsequently applied to the validation cohort to assess odds ratios for the primary and secondary outcomes. RESULTS The derivation cohort included 599 patients, and the validation cohort 2011 patients. Thirty-day mortality was 4.2 and 3.9%, respectively. From the derivation cohort, 3 variables were established for use in the predictive scoring score: ≥2 systemic inflammatory response syndrome (SIRS) criteria, age > 60 years, and SpO2 < 96%. Summing the presence or absence of each variable yielded an ED-SAS score ranging from 0 to 3. In the validation cohort, the odds of 30-day mortality increased with each subsequent ED-SAS point: 4.4 (95% CI 1.8-10.8) for 1 point, 12.0 (95% CI 4.9-29.4) for 2 points, and 41.7 (95% CI 15.8-110.1) for 3 points (c-statistic = 0.77). CONCLUSION An ED-SAS score that incorporates SpO2, age, and SIRS measurements, all of which are available in the ED, provides a rapid method for predicting 30-day mortality in acute pancreatitis.
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Affiliation(s)
- Joseph Miller
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA. .,Wayne State University, Detroit, MI, USA.
| | - Yiyang Wu
- Nashville Biosciences, Nashville, TN, USA.,Vanderbilt University Medical Center, Nashville, TN, USA
| | - Rawan Safa
- Washington University School of Medicine, St. Louis, MO, USA
| | - Georgiana Marusca
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Sandeep Bhatti
- Lake Erie College of Osteopathic Medicine, Erie, PA, USA
| | - Guneet Ahluwalia
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Jad Dandashi
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Harold Gomez Acevedo
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Naureen Farook
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Ashley Scott
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Vidhya Nair
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Angie Adhami
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
| | - Jeffrey Dueweke
- Henry Ford Hospital, Department of Emergency Medicine, 2799 W Grand Blvd, Detroit, MI, 48202, USA
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Nair V, Belanger EC, Lamacie MM, Davies RA, Veinot JP. Unexpected diagnosis of metastatic breast carcinoma in an endomyocardial biopsy done for cardiac allograft rejection evaluation. Cardiovasc Pathol 2020; 50:107266. [PMID: 32814149 DOI: 10.1016/j.carpath.2020.107266] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/09/2020] [Accepted: 08/11/2020] [Indexed: 11/16/2022] Open
Abstract
We report a case of a 75-year-old female post orthotopic heart transplantation, who presented to the emergency department with a six-week history of shortness of breath, hand tremor and ultimately delirium. She had lobular breast carcinoma more than 5 years prior to her heart transplant, treated by lumpectomy followed by anthracycline based chemotherapy. The reason for her heart transplant was heart failure that was suspected to be from anthracycline cardiomyopathy, however, her explanted heart actually showed cardiac sarcoidosis. She was placed on long-term immunosuppression with tacrolimus, mycophenolate mofetil and prednisone. Two years after her heart transplant, she underwent bilateral mastectomies for recurrent breast cancer. Her neurological workup, including brain imaging (CT, MRI, LP and EEG) did not show any structural abnormalities, ischemia, mass or neurosarcoidosis as cause for delirium. Tacrolimus was held due to renal dysfunction and hemolytic anemia, and then she developed signs of right heart failure so an endomyocardial biopsy was carried out for suspected allograft rejection. The biopsy did not show any evidence of cellular or antibody medicated rejection; however, it demonstrated infiltration by bland appearing cells with signet ring morphology cells many of which showed intracytoplasmic mucin. The cells were strongly positive with cytokeratins AE1/3, CK7 and mammaglobin. The morphology and immunoprofile were consistent with metastatic lobular breast carcinoma and this was thought to be the cause of her clinical presentation with delirium, hemolytic anemia and renal dysfunction as a paraneoplastic syndrome.
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Affiliation(s)
- Vidhya Nair
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
| | - Eric C Belanger
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC
| | - Mariana M Lamacie
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada
| | - Ross A Davies
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada
| | - John P Veinot
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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32
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Yilmaz A, Turan N, Bayraktar E, Tali HE, Aydin O, Umar S, Cakan B, Sadeyen JR, Baigent S, Iqbal M, Nair V, Yilmaz H. Molecular characterisation and phylogenetic analysis of Marek's disease virus in Turkish layer chickens. Br Poult Sci 2020; 61:523-530. [PMID: 32316760 DOI: 10.1080/00071668.2020.1758301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
1. There is no current data about the genotypes of Marek's disease virus (MDV) in Turkish poultry flocks; hence, this study was performed to analyse CVI988/Rispens, turkey herpesvirus (HVT) vaccine viruses and MDV field viruses as well as to perform phylogenetic analysis of MDV in Turkish layer chickens. 2. In 2017 and 2018, a total of 602 spleen samples from 49 layer flocks were collected from the Marmara, West Black Sea and Aegean regions. DNA was extracted from the spleen samples and the samples were analysed by real-time PCR probe assay to detect CVI988/Rispens and HVT vaccine viruses and MDV field strains. Samples found positive for MDV by real-time PCR were subjected to PCR using the Meq gene primers for phylogenetic analysis. 3. Amongst 49 flocks, virulent MDV was detected in nine flocks. CVI988/Rispens and HVT vaccine strains were detected in 47 flocks and HVT in all 49 flocks. Splenomegaly, hepatomegaly and tumours in the oviduct were observed in chickens of affected flocks. Virulent MDV was detected in 120 out of 602 spleen samples. Sequencing and phylogenetic analyses showed that MDVs detected in this study were closely related to MDV strains from Italy, Poland, Saudi Arabia, Iraq, India and China but showed diversity with MDV strains from Egypt and Hungary. Multiple sequence analysis of the Meq protein revealed several point mutations in deduced amino acid sequences. Interestingly, CVI988/Rispens vaccine virus from China (AF493555) showed mutations at position 66 (G66R) and 71 (S66A) along with two other vaccine strains from China (GU354326.1) and Russia (EU032468.1), in comparison with the other vaccine strain CVI988/Rispens (DQ534538). The molecular analyses of the Meq gene suggested that Turkish field strains of MDV are in the class of virulent or very virulent pathotypes. 4. The results have shown that MDV still affects poultry health, and the phylogenetic and amino acid variation data obtained will help in vaccination and control strategies.
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Affiliation(s)
- A Yilmaz
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty , Istanbul, Turkey
| | - N Turan
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty , Istanbul, Turkey
| | - E Bayraktar
- Poultry Division, CEVA Animal Health , Maslak, Turkey
| | - H E Tali
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty , Istanbul, Turkey
| | - O Aydin
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty , Istanbul, Turkey
| | - S Umar
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty , Istanbul, Turkey
| | - B Cakan
- Poultry Division, CEVA Animal Health , Maslak, Turkey
| | - J-R Sadeyen
- Avian Influenza Group, The Pirbright Institute , Woking, UK
| | - S Baigent
- Avian Influenza Group, The Pirbright Institute , Woking, UK
| | - M Iqbal
- Avian Influenza Group, The Pirbright Institute , Woking, UK
| | - V Nair
- Avian Influenza Group, The Pirbright Institute , Woking, UK
| | - H Yilmaz
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty , Istanbul, Turkey
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Affiliation(s)
- John P Veinot
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8M5, Canada.
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8M5, Canada
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34
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Lee F, Nair V, Chih S. Cardiac allograft vasculopathy: Insights on pathogenesis and therapy. Clin Transplant 2020; 34:e13794. [PMID: 31991002 DOI: 10.1111/ctr.13794] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 09/04/2019] [Revised: 01/14/2020] [Accepted: 01/23/2020] [Indexed: 12/21/2022]
Abstract
Cardiac allograft vasculopathy (CAV) is a unique accelerated form of coronary vascular disease affecting heart transplant recipients. This complication is a significant contributor to medium- to long-term post-transplant morbidity and mortality. There is a high prevalence of CAV with approximately one in three patients developing CAV by 5 years post-transplant. Morphologically, CAV is characterized by concentric coronary intimal hyperplasia in both the epicardial arteries and intramural microvasculature. Although several immune and non-immune factors have been identified, their precise pathogenic mechanisms, interactions, and relative importance in the development of CAV are not well defined. The advent of improved imaging surveillance modalities has resulted in earlier detection during the disease process. However, overall management of CAV remains challenging due to paucity of treatment. This review aims to discuss key concepts on the pathogenesis of CAV and current management strategies, focusing on the use of mammalian target of rapamycin inhibitors.
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Affiliation(s)
- Felicity Lee
- Heart Failure and Transplantation, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, ON, Canada
| | - Sharon Chih
- Heart Failure and Transplantation, Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ottawa, ON, Canada
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Lamacie MM, Almufleh A, Nair V, Stadnick E, Birnie D, Beanlands RSB, Chih S. Serial 18F-Fluorodeoxyglucose Positron Emission Tomography Imaging in a Patient With Giant Cell Myocarditis. Circ Cardiovasc Imaging 2020; 13:e009940. [PMID: 32000512 DOI: 10.1161/circimaging.119.009940] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Mariana M Lamacie
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada (M.M.L., A.A., E.S., D.B., R.B., S.C.)
| | - Aws Almufleh
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada (M.M.L., A.A., E.S., D.B., R.B., S.C.).,Cardiac Sciences Department, King Saud University, Riyadh (A.A.)
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, University of Ottawa, ON, Canada (V.N.)
| | - Ellamae Stadnick
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada (M.M.L., A.A., E.S., D.B., R.B., S.C.)
| | - David Birnie
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada (M.M.L., A.A., E.S., D.B., R.B., S.C.)
| | - Rob S B Beanlands
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada (M.M.L., A.A., E.S., D.B., R.B., S.C.)
| | - Sharon Chih
- Division of Cardiology, University of Ottawa Heart Institute, ON, Canada (M.M.L., A.A., E.S., D.B., R.B., S.C.)
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López-Osorio S, Villar D, Piedrahita D, Ramírez-Nieto G, Nair V, Baigent S, Chaparro-Gutiérrez J. Molecular detection of Marek's disease virus in feather and blood samples from young laying hens in Colombia. Acta Virol 2019; 63:380-391. [PMID: 31802681 DOI: 10.4149/av_2019_402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Marek's disease virus (MDV) is an immunosuppressive pathogen that can cause low production efficiency and high mortality rates in chickens. There is no current information on the MDV serotypes and pathotypes circulating in vaccinated commercial farms in Colombia where the birds are vaccinated in the incubator with Gallid herpesvirus (GaHV-2) and Meleagrid herpesvirus 1 (MeHV-1). Based on that, the main focus of this study was to understand the MDV's infection dynamics for the three known serotypes and to detect wild-virus pathogenic strains in 4-layer poultry farms in Antioquia. Samples of blood, feathers and spleens were collected from three randomly chosen animals according to age category: 1, 15, 30, 60, 90, and 120 days. Quantitative real-time PCR (qPCR) that differentiates between the three serotypes of MDV was used to assess viral loads over time, and phylogenetic analysis of the Meq oncogene was done to compare the strains of MDV with those of known pathogenicity. Meleagrid herpesvirus 1 (MeHV-1) was detected in all blood and feather follicle samples with an average number of genome copies (per 10,000 cells) of 31.44 in blood as expected as a result of vaccination. GaHV-2 was also detected in almost 100% of the blood and feather follicle samples throughout all defined age categories, with an average of 10.65 genome copies in blood samples. Gallid herpesvirus 3 (GaHV-3) was detected in 72% of blood and 84.61% of feather samples, with less than 1 copy per 10,000 cells. Based on the number of 132 bp repeats of the BamHI-H and BamHI-D regions in pooled feather samples, there were 70% (8/25) of attenuated MDV and 30% (17/25) of virulent MDV strains circulating in the farms. Virus isolation was performed successfully from every farm. In conclusion, different strains of MDV are circulating for up to 120 days in layers in Antioquia-Colombia and could be of major impact in poultry health. Keywords: Marek's disease virus (MDV); Antioquia-Colombia; qPCR; PCR; Meq gene phylogeny.
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Nair V, Bik-Yu Hui A, Chabon J, Esfahani M, Stehr H, Nabet B, Benson J, Chaudhuri A, Zhou L, Ayers K, Bedi H, Ramsey M, Van Wert R, Sung A, Lui N, Backhus L, Berry M, Massion P, Shrager J, Alizadeh A, Diehn M. P2.05-01 Broad Genomic Profiling of Bronchoalveolar Lavage Fluid in Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1600] [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: 10/25/2022]
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Song J, Belec J, Caudrelier J, Lacasse P, Aldosary G, Nair V. Dose-Sparing Effect of Deep Inspiration Breath Hold Technique (DIBH) on Coronary Artery Segments. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.878] [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: 10/26/2022]
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Zheng J, Hinduja R, Pantarotto J, Cook G, Nair V, MacRae R. Outcome Differences Between Early Stage Adenocarcinoma and Squamous Cell Carcinoma Lung Cancers Treated with Stereotactic Body Radiation Therapy: Results of a Large Canadian Single Center Retrospective Analysis. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ascani H, Tomilo M, Nair V, Eichinger F, Eddy S, Ju W, Hodgin J, Steck R, Grega D, Kretzler M. MON-332 ADVANCING SYSTEMS-BIOLOGY FOCUSED, GLOMERULAR DISEASE RESEARCH THROUGH PUBLIC-PRIVATE PARTNERSHIPS. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.1152] [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: 10/26/2022] Open
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Gerstein HC, Nair V, Chaube R, Stoute H, Werstuck G. Dysglycemia and the Density of the Coronary Vasa Vasorum. Diabetes Care 2019; 42:980-982. [PMID: 30862652 DOI: 10.2337/dc18-2483] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 01/30/2019] [Indexed: 02/03/2023]
Abstract
OBJECTIVE This study was conducted to determine the relationship between dysglycemia and the coronary artery vasa vasorum density. RESEARCH DESIGN AND METHODS The left anterior descending coronary artery was removed from 57 deceased individuals during autopsy, and the capillaries in the vessel wall were identified using fluorescent immunohistochemical staining. HbA1c was determined in postmortem whole blood for each individual. The density of the vasa vasorum in the intima-media and the adventitia was manually quantified and recorded by readers unaware of the individual's other characteristics. RESULTS The individuals with diabetes had a lower density of the coronary vasa vasorum than those without diabetes. The higher the HbA1c, the lower the density of these vessels in the adventitia and entire vessel wall. CONCLUSIONS Dysglycemia-induced damage to the vasa vasorum may promote ischemic heart disease in people with diabetes.
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Affiliation(s)
- Hertzel C Gerstein
- Department of Medicine, McMaster University and Hamilton Health Sciences, Hamilton, Canada .,Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, Canada
| | - Vidhya Nair
- Department of Medicine, McMaster University and Hamilton Health Sciences, Hamilton, Canada.,Department of Pathology and Molecular Medicine, McMaster University and Hamilton Health Sciences, Hamilton, Canada.,University of Ottawa and The Ottawa Hospital, Ottawa, Canada
| | - Ruchi Chaube
- Thrombosis and Atherosclerosis Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, Canada
| | - Heidi Stoute
- Thrombosis and Atherosclerosis Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, Canada
| | - Geoff Werstuck
- Department of Medicine, McMaster University and Hamilton Health Sciences, Hamilton, Canada.,Thrombosis and Atherosclerosis Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, Canada
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Song J, Samant R, Fan X, Jay M, Chaudry H, MacDonald D, Bence-Bruckler I, Nair V. EP-1221 Palliative cranial irradiation improves survival in PCNSL patients ineligible for systemic therapy. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31641-x] [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: 11/26/2022]
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Abstract
Lysosomal storage disorders (LSD) comprise a group of diseases caused by a deficiency of lysosomal enzymes, membrane transporters or other proteins involved in lysosomal biology. Lysosomal storage disorders result from an accumulation of specific substrates, due to the inability to break them down. The diseases are classified according to the type of material that is accumulated; for example, lipid storage disorders, mucopolysaccharidoses and glycoproteinoses. Cardiac disease is particularly important in lysosomal glycogen storage diseases (Pompe and Danon disease), mucopolysaccharidoses and in glycosphingolipidoses (Anderson-Fabry disease). Various disease manifestations may be observed including hypertrophic and dilated cardiomyopathy, coronary artery disease and valvular diseases. Endomyocardial biopsies can play an important role in the diagnosis of these diseases. Microscopic features along with ancillary tests like special stains and ultrastructural studies help in the diagnosis of these disorders. Diagnosis is further confirmed based upon enzymatic and molecular genetic analysis. Emerging evidence suggests that Enzyme replacement therapy (ERT) substantially improves many of the features of the disease, including some aspects of cardiac involvement. The identification of these disorders is important due to the availability of ERT, the need for family screening, as well as appropriate patient management and counseling.
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Affiliation(s)
- Vidhya Nair
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario, K1H 8M5, Canada.
| | - Eric C Belanger
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario, K1H 8M5, Canada
| | - John P Veinot
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario, K1H 8M5, Canada
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Dermime S, Inchakalody V, Nair V, El-Ashi A, Taleb S, Fernandes Q, Al-Zaidan L, Iskandarani A, Sivaraman S, Sahir F, Krishnankutty R, Therachiyil L, Merhi M, Raza A, Uddin S, Elkord E, Knuth A. Enhancing NY-ESO-1 antigen expression in lung cancer cells through gene hypomethylation using 5-Aza-2′-deoxycytidine. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy487.034] [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: 11/13/2022] Open
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Nair V, Nazri D, Hashim R, Lau A, Muniasamy M. Bridging Barriers, Building Partners: Success of a Multistakeholder Collaborative Effort in Building and Implementing a Free Mammography Programme for Underprivileged Malaysian Women. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.66700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background and context: Research has revealed two large problems in the Malaysian breast cancer control context. First, a large disparity existed in diagnostic stages of Malaysian patients during first presentation; with a large percentage of patients presenting in Stage 3 or 4. Second, patients presenting in later stages of disease were revealed to be of lower socioeconomic backgrounds. Shortcomings are thus thought to exist in the capability of women from lower socioeconomic groups to access breast cancer screening. To address these gaps, the National Cancer Society of Malaysia conceptualized and put together a multistakeholder collaborative project. Aim: The aim of this project was to build, finance and implement a free mammography program for underprivileged Malaysian women. Strategy/Tactics: To ensure geographic equity in provision of this program, 14 individual private hospitals in 10 different states in peninsular Malaysia were negotiated with and agreed to provide the mammogram at highly competitive prices. To address transport and other costs which may have acted as a barrier for patients to attend their screening, transportation costs for groups going for their screening was also subsidized. Additional stakeholders' engaged were nongovernmental organizations (NGOs) especially those working with the economically underprivileged such as religious and other community NGOs. They were roped in as partners to spread the message, identify eligible participants and schedule visits. Some NGOs carried this out as part of their own outreach activities; reserving specific days at the screening centers for themselves. Program/Policy process: The program consisted of a free mammogram provided to Malaysian women above 40 years of age who were determined to be underprivileged; defined for this program as those having a monthly household income below the poverty line (RM5000). If the mammogram was found to be suspicious, a confirmatory breast ultrasound was also performed sans payment. Once conceptualized, the program was successfully pitched by NCSM to ETIQA Insurance, a large Malaysian insurer, who agreed to fund this project as part of their sustainable corporate social responsibility (CSR) initiative. In total, the program funded mammograms for 5000 women over a period of 1 year from July 2017 to July 2018. NCSM advertised the program through various channels; including traditional media, social media, and at various outreach programs and events. Outcomes/What was learned: The program has run for 8 months and has already screened 3550 women nationwide. The multistakeholder collaborative effort has been highly successful at creating awareness on breast cancer screening and providing accurate breast cancer screening for a large number of underprivileged women, some for the first time in their lives.
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Affiliation(s)
- V. Nair
- National Cancer Society Malaysia, Kuala Lumpur, Malaysia
| | - D. Nazri
- National Cancer Society Malaysia, Kuala Lumpur, Malaysia
| | - R. Hashim
- National Cancer Society Malaysia, Kuala Lumpur, Malaysia
| | - A. Lau
- National Cancer Society Malaysia, Kuala Lumpur, Malaysia
| | - M. Muniasamy
- National Cancer Society Malaysia, Kuala Lumpur, Malaysia
- Chulalongkorn University, College of Public Health Sciences, Bangkok, Thailand
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Harjani Hinduja R, Seely J, Gupta A, Nair V, Cook G, Macrae R. P2.16-19 Feasibility and Outcomes of Radiofrequency Ablation as Salvage Modality After Hypofractionated Radiation/SBRT for Early NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhang S, Harris J, Boyle T, Williams C, Antonia S, Chiappori A, Gray J, Tanvetyanon T, Creelan B, Haura E, Shafique M, Fontaine J, Cox J, Kaszuba F, Keenan R, Nair V, Toloza E. P09 Comparison of Liquid Biopsy and Histopathologic Results with Clinical Outcomes in Non–Small Cell Lung Cancer Patients. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.07.048] [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: 10/28/2022]
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Alzayer H, Winter J, Alshatti A, Nair V, Sheth T, Whitlock RP, Dyub A, Belley-Côté EP. Histoplasma Endocarditis Diagnosed by Thrombus Aspiration. Can J Cardiol 2018; 34:1370.e9-1370.e11. [PMID: 30269839 DOI: 10.1016/j.cjca.2018.07.417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/20/2018] [Accepted: 07/20/2018] [Indexed: 10/28/2022] Open
Abstract
Negative cultures in endocarditis often lead to delays in targeted life-saving therapies. We present the case of a 68-year-old man who presented with culture-negative endocarditis, which was complicated by coronary embolization resulting in anterior ST-elevation myocardial infarction (STEMI). Aspiration thrombectomy led to the diagnosis of fungal endocarditis, one of the most serious causes of culture-negative presentation.
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Affiliation(s)
- Hussain Alzayer
- Division of Cardiology, Hamilton General Hospital, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - José Winter
- Division of Cardiology, Hamilton General Hospital, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Ahmad Alshatti
- Division of Cardiology, Hamilton General Hospital, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Tej Sheth
- Division of Cardiology, Hamilton General Hospital, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Richard P Whitlock
- Division of Cardiac Surgery, Hamilton General Hospital, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Adel Dyub
- Division of Cardiac Surgery, Hamilton General Hospital, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Emilie P Belley-Côté
- Division of Cardiology, Hamilton General Hospital, Hamilton Health Sciences, McMaster University, Hamilton, Ontario, Canada.
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Abdel-Rahman W, Nair V, Al-khayyal N. PO-206 Calponin 3 (CNN3) promotes epithelial to mesenchymal transition and drug resistance of colon cancer cells. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Chabon J, Chaudhuri A, Azad T, Kurtz D, Stehr H, Liu C, Martin JS, Merriott D, Carter J, Ayers K, Mansfield A, Jen J, Ren H, West R, Nair V, Shrager J, Neal J, Wakelee H, Loo B, Alizadeh A, Diehn M. MA 13.01 Clinical and Pathological Variables Influencing Noninvasive Detection of Early Stage Lung Cancer Using Circulating Tumor DNA. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.560] [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: 10/18/2022]
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