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Hamilton M, Kendall E. Response to Galiano. Health Phys 2024; 126:164. [PMID: 38252951 DOI: 10.1097/hp.0000000000001784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
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Hamilton M, Kendall E. Response to McCollough et al. Health Phys 2023; 125:376. [PMID: 37738375 DOI: 10.1097/hp.0000000000001732] [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] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Affiliation(s)
- Matthew Hamilton
- Memorial University of Newfoundland Prince Philip Drive St. John's NL A1B-3 V6
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Dalal RS, Baranov E, Li J, Hong X, Korzenik J, Hamilton M, Sasson G. Small Cells, Big Problems: Small Cell Carcinoma of the Rectal Cuff After Ileal-Pouch Anal Anastomosis in a Patient with Ulcerative Colitis. Dig Dis Sci 2023; 68:4127-4129. [PMID: 37740133 DOI: 10.1007/s10620-023-08110-0] [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: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/24/2023]
Affiliation(s)
- Rahul S Dalal
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
- The Crohn's and Colitis Center of Brigham and Women's Hospital, 850 Boylston St Suite 201, Chestnut Hill, MA, 02467, USA.
| | - Esther Baranov
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Jessica Li
- Department of Radiology, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Xuefei Hong
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Joshua Korzenik
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Matthew Hamilton
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Gila Sasson
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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Whiteford H, Bagheri N, Diminic S, Enticott J, Gao CX, Hamilton M, Hickie IB, Khanh-Dao Le L, Lee YY, Long KM, McGorry P, Meadows G, Mihalopoulos C, Occhipinti JA, Rock D, Rosenberg S, Salvador-Carulla L, Skinner A. Mental health systems modelling for evidence-informed service reform in Australia. Aust N Z J Psychiatry 2023; 57:1417-1427. [PMID: 37183347 DOI: 10.1177/00048674231172113] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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] [Indexed: 05/16/2023]
Abstract
Australia's Fifth National Mental Health Plan required governments to report, not only on the progress of changes to mental health service delivery, but to also plan for services that should be provided. Future population demand for treatment and care is challenging to predict and one solution involves modelling the uncertain demands on the system. Modelling can help decision-makers understand likely future changes in mental health service demand and more intelligently choose appropriate responses. It can also support greater scrutiny, accountability and transparency of these processes. Australia has an emerging national capacity for systems modelling in mental health which can enhance the next phase of mental health reform. This paper introduces concepts useful for understanding mental health modelling and identifies where modelling approaches can support health service planners to make evidence-informed decisions regarding planning and investment for the Australian population.
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Affiliation(s)
- Harvey Whiteford
- Queensland Centre for Mental Health Research, Wacol, QLD, Australia
- School of Public Health, The University of Queensland, Herston, QLD, Australia
| | - Nasser Bagheri
- Mental Health Policy Unit, Health Research Institute, University of Canberra
| | - Sandra Diminic
- Queensland Centre for Mental Health Research, Wacol, QLD, Australia
- School of Public Health, The University of Queensland, Herston, QLD, Australia
| | - Joanne Enticott
- Southern Synergy, Monash Centre of Health Research & Implementation, Monash University, Dandenong, VIC, Australia
| | - Caroline X Gao
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Orygen, Parkville, VIC, Australia
- School of Public Health and Preventive Medicine, Monash University
| | - Matthew Hamilton
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Orygen, Parkville, VIC, Australia
- School of Public Health and Preventive Medicine, Monash University
| | - Ian B Hickie
- Brain and Mind Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Long Khanh-Dao Le
- Health Economics Group, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Yong Yi Lee
- Health Economics Group, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Katrina M Long
- Department of Occupational Therapy, School of Primary and Allied Health Care, Monash University, Frankston, VIC, Australia
| | - Patrick McGorry
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Orygen, Parkville, VIC, Australia
| | - Graham Meadows
- Southern Synergy, Department of Psychiatry, School of Clinical Sciences at Monash Health, Monash University, Dandenong, VIC, Australia
| | - Cathrine Mihalopoulos
- Health Economics Group, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Jo-An Occhipinti
- Systems Modelling, Simulation & Data Science, Brain and Mind Centre, Faculty of Medicine and Health, University of Sydney
| | - Daniel Rock
- WA Primary Health Alliance, Perth, Australia
- Discipline of Psychiatry, Medical School University of Western Australia
- Faculty of Health, University of Canberra
| | - Sebastian Rosenberg
- Brain and Mind Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Luis Salvador-Carulla
- Health Research Institute, Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - Adam Skinner
- Brain and Mind Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
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Abbasi RK, Cossu AE, Tanner B, Castelluccio P, Hamilton M, Brown J, Herrmann J. Liposomal bupivacaine reduces opioid requirements following Ravitch repair for pectus excavatum. J Anaesthesiol Clin Pharmacol 2023; 39:392-396. [PMID: 38025581 PMCID: PMC10661631 DOI: 10.4103/joacp.joacp_336_21] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 12/23/2021] [Accepted: 01/09/2022] [Indexed: 12/01/2023] Open
Abstract
Background and Aims The management of post-operative pain after surgical repair of pectus excavatum with the Ravitch procedure is challenging. Although previous studies have compared various methods of pain control in these patients, few have compared different local anesthetics. This retrospective analysis compares the use of bupivacaine to its longer-acting form, liposomal bupivacaine, in patients who had undergone pectus excavatum repair with the Ravitch method. Material and Methods Eleven patients who received local infiltration with liposomal bupivacaine were matched to 11 patients who received local infiltration utilizing bupivacaine with epinephrine. The primary outcome was total morphine milligram equivalents per kilogram body weight (MME/kg) over the complete length of hospital stay. Secondary outcomes included total cumulative diazepam, acetaminophen, ondansetron, and NSAID dose per kilogram body weight (mg/kg) over the course of the hospital stay, chest tube drainage (ml/kg body weight), number of post-operative hours until the first bowel movement, Haller Index, patient request for magnesium hydroxide, average pain scores from post-operative day 1 to post-operative day 5, and length of hospital stay. Continuous variables were reported as medians with inter-quartile ranges, and categorical values were reported as percentages and frequencies. Results The total MME/kg [1.7 (1.2-2.4) vs 2.9 (2.0-3.9), P = 0.007] and hydromorphone (mg/kg) [0.1 (0.0-0.2) vs 0.3 (0.1-0.4), P = 0.006] use in the liposomal bupivacaine group versus bupivacaine with epinephrine was significantly reduced over total length of hospital stay. Similarly, there was a reduction in diazepam use in the liposomal bupivacaine group versus the bupivacaine group [0.4 (0.1-0.8) vs 0.6 (0.4-0.7), P = 0.249], but this did not reach statistical significance. The total dose of ondansetron (mg/kg) was not statistically different when comparing the liposomal bupivacaine group to the bupivacaine group [0.3 (0.0-0.5) vs 0.3 (0.2-0.6), P = 0.332]. Interestingly, the total dose of acetaminophen (mg/kg) was statistically increased in the liposomal bupivacaine group compared to the bupivacaine with epinephrine group [172 (138-183) vs 74 (55-111), P = 0.007]. Additionally, the total chest tube drainage (ml/kg) was significantly reduced in the liposomal bupivacaine group [9.3 (7.5-10.6) vs 12.8 (11.3-18.5), P = 0.027]. Finally, the percentage of patients without requests for magnesium hydroxide to promote laxation was significantly higher in the liposomal bupivacaine group than in the bupivacaine group (63.6% vs 18.2%, P = 0.027). Conclusion The use of liposomal bupivacaine for local infiltration in patients who undergo the Ravitch procedure for pectus repair offers advantages over plain bupivacaine, including reduced opioid consumption and opioid-related side effects. However, more data are needed to understand the significance of these findings.
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Affiliation(s)
- Rania K. Abbasi
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Anne E. Cossu
- Department of Anesthesia, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Brandon Tanner
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Peter Castelluccio
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Matthew Hamilton
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - John Brown
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jeremy Herrmann
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
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Lillington SP, Hamilton M, Cheng JF, Yoshikuni Y, O'Malley MA. Expression and characterization of spore coat CotH kinases from the cellulosomes of anaerobic fungi (Neocallimastigomycetes). Protein Expr Purif 2023:106323. [PMID: 37331410 DOI: 10.1016/j.pep.2023.106323] [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] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
Anaerobic fungi (Neocallimastigomycetes) found in the guts of herbivores are biomass deconstruction specialists with a remarkable ability to extract sugars from recalcitrant plant material. Anaerobic fungi, as well as many species of anaerobic bacteria, deploy multi-enzyme complexes called cellulosomes, which modularly tether together hydrolytic enzymes, to accelerate biomass hydrolysis. While the majority of genomically encoded cellulosomal genes in Neocallimastigomycetes are biomass degrading enzymes, the second largest family of cellulosomal genes encode spore coat CotH domains, whose contribution to fungal cellulosome and/or cellular function is unknown. Structural bioinformatics of CotH proteins from the anaerobic fungus Piromyces finnis shows anaerobic fungal CotH domains conserve key ATP and Mg2+ binding motifs from bacterial Bacillus CotH proteins known to act as protein kinases. Experimental characterization further demonstrates ATP hydrolysis activity in the presence and absence of substrate from two cellulosomal P. finnis CotH proteins when recombinantly produced in E. coli. These results present foundational evidence for CotH activity in anaerobic fungi and provide a path towards elucidating the functional contribution of this protein family to fungal cellulosome assembly and activity.
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Affiliation(s)
- Stephen P Lillington
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Matthew Hamilton
- The US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Jan-Fang Cheng
- The US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Yasuo Yoshikuni
- The US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Michelle A O'Malley
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, 93106, USA.
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Hamilton M, Kendall E. Radiation Exposure from the Patient Perspective: An Argument for the Inclusion of Dose History. Health Phys 2023:00004032-990000000-00088. [PMID: 37195183 DOI: 10.1097/hp.0000000000001705] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
ABSTRACT Patients in diagnostic imaging departments often ask about the risk of injury from x radiation. They are referred to wall posters or consent forms that declare (rightly) that the risk of harm from the proposed exam is very small and is far outweighed by the benefit. If a comparative risk value is provided, most likely it is based on a single exposure and derived from population estimates of cancer incidence and mortality. But is that information the most relevant for the patient? In a recent position statement, the AAPM recommends that only current exam risk should be considered, and that risk is independent of previous exams. We argue that if an exam carries risk of a negative event, the likelihood that a negative event occurred over all events increases with the number of exams. This cumulative risk, though still very small, must be a relevant consideration for health management.Health Phys. 000(0):000-000; 2023.
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Affiliation(s)
- Matthew Hamilton
- Department of Computer Science, Memorial University, St. John's, NL, Canada
| | - Edward Kendall
- Department of Radiology, Faculty of Medicine, Memorial University, St. John's, NL, Canada
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Gorji L, Hamilton M, Reyes NM, O’Neill EM, Floyd ZR, Elrod MA, Archer AL. Syringocystadenoma papilliferum: case series and review of the literature. J Surg Case Rep 2023; 2023:rjad263. [PMID: 37215626 PMCID: PMC10198642 DOI: 10.1093/jscr/rjad263] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023] Open
Abstract
Syringocystadenoma papilliferum (SCAP) is a rare, hamartomatous tumor of the apocrine glands, which typically manifests in the head and neck region. We present a case of 60-year-old male with a several-year history of the lesion located on the abdominal wall and a second case of a 58-year-old male with a history of a slow-growing lesion located on the tragus. Despite varying presentations and locations, both patients were identified to have SCAP on pathological evaluation. Appropriate treatments of SCAP range from CO2 laser treatment to surgical excision; we recommend surgical excision due to the risk of malignant transformation.
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Affiliation(s)
- Leva Gorji
- Correspondence address: Kettering Health Dayton, Department of Surgery, 405 W Grand Ave, Dayton, OH 45405, USA. E-mail:
| | - Matthew Hamilton
- Kettering Health - Datyon, Department of Surgery, Dayton, OH 45405, USA
| | - Nicole M Reyes
- Kettering Health - Datyon, Department of Surgery, Dayton, OH 45405, USA
| | - Erin M O’Neill
- Kettering Health - Datyon, Department of Surgery, Dayton, OH 45405, USA
| | - Zachary R Floyd
- Kettering Health - Datyon, Department of Surgery, Dayton, OH 45405, USA
| | - Michael A Elrod
- Kettering Health - Datyon, Department of Surgery, Dayton, OH 45405, USA
| | - Andrew L Archer
- Kettering Health - Datyon, Department of Surgery, Dayton, OH 45405, USA
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Stern L, Patel J, Kittleson M, Chang D, Patel N, Singer-Englar T, Velleca A, Norland K, Hamilton M, Czer L, Esmailian F, Kobashigawa J. Proceeding with Heart Transplant in Flow Positive Cyto-Negative Prospective Donor-Specific Crossmatch in Highly Sensitized Patients: Saving Lives. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1667] [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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Stachel M, Patel J, Kittleson M, Chang D, Patel N, Singer-Englar T, Ross V, De Leon F, Hamilton M, Czer L, Esmailian F, Kobashigawa J. Revisiting Hemodynamic Compromise Rejection in the Current Era of Heart Transplantation: Still Problematic. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1212] [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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Shen A, Patel J, Kittleson M, Chang D, Esmailian G, Singer-Englar T, De Leon F, Hamilton M, Geft D, Czer L, Megna D, Kobashigawa J. Transthyretin Amyloid May Have a Protective Effect for Rejection after Heart Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.544] [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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Kittleson M, Patel J, Nikolova A, Patel N, Singer-Englar T, Hu J, De Leon F, Hamilton M, Czer L, Esmailian F, Kobashigawa J. What Should the GFR Threshold Be for Redo Heart Transplant Patients to Qualify for Combined Heart-Kidney Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.524] [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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Kittleson M, Patel J, Hage A, Geft D, Singer-Englar T, Kim S, Velleca A, Hamilton M, Czer L, Esmailian F, Kobashigawa J. Oversized Donors for Patients with Pulmonary Hypertension Awaiting Heart Transplant: Busting the Myth of Using Female Donors. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.534] [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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Brown E, Killackey E, Hamilton M, Thompson A, McGorry P. Response to Allison et al. (2022) 'Headspace early intervention for psychosis in Australia: Is it still a "best buy"?'. Australas Psychiatry 2023; 31:232-233. [PMID: 36905140 DOI: 10.1177/10398562231162239] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Hamilton M, Mars Z, Sedeuil M, Rolland M, Jean D, Giroux V. A10 OVEREXPRESSION OF ASCL2 ALTERS DIFFERENTIATION, CELL CYCLE AND RESISTANCE TO ANTI-CANCER TREATMENT IN ESOPHAGEAL ORGANOIDS. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991315 DOI: 10.1093/jcag/gwac036.010] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background The esophagus is in constant contact with the austere environment caused by food and gastric reflux. It is protected by a squamous epithelium which maintenance is provided by a rare subpopulation of basal cells: Keratin 15+ (Krt15+) stem cells. However, little is known about the mechanisms underlying the expansion and the function of these stem cells. It was shown that the transcription factor ASCL2 is strongly upregulated in Krt15+ cells compared to Krt15- cells. Interestingly, ASCL2 is a gene target of the Wnt/β-catenin pathway, which acts as a regulator of proliferation and maintenance of the stemness state. Purpose The ultimate goal of my research project is to determine the role of ASCL2 in the maintenance of esophageal stem cells. To do so, I will investigate the role of ASCL2 in esophageal epithelial biology. Method Lentiviral infection approach was used to obtain mouse esophageal organoids overexpressing ASCL2 (ASCL2OE). Organoid culture, immunostaining (such as IF and H&E), qPCR, WB, mass spectrometry and proliferation assay were used to characterize the effect of ASCL2OE on morphology, differentiation, proliferation, self-renewal, and gene expression. Result(s) ASCL2OE severely altered the morphology of organoids, which were smaller and less differentiated. Defects in differentiation was investigated by IF which showed that some cells expressed both p63 and K13, respectively basal and suprabasal markers. Thus, cells seem to be blocked in an intermediate state of differentiation suggesting a default in cell fate decision. Mass spectrometry analysis confirmed a change in biological processes related to differentiation of keratinocytes and of epithelial cells. We also investigated the role of ASCL2 in self-renewal and observed that organoid formation rate (OFR) was reduced in ASCL2OE organoids. Furthermore, proliferation was also reduced in WST-1 and EdU assays. We then observed significant changes in the cell cycle by flow cytometry: there is an increased in the number of cells in G0/G1 and a major decrease in G2/M cells, suggesting a blockade in G1. Interestingly, CDNK2a (p16INK4a), an inhibitor of cell cycle progression, was increased in our mass spectrometry results. Finally, ASCL2 could also play a role in radio and chemoresistance of Krt15+ stem cells, as ASCL2OE organoids are less sensitive to radiation and chemotherapy agents than control. Conclusion(s) ASCL2 could play a role in orchestrating cell fate decision in the esophageal epithelium as ASCL2OE organoids showed alteration in differentiation, proliferation, and cell cycle. Please acknowledge all funding agencies by checking the applicable boxes below Other Please indicate your source of funding; NSERC, Canada Research Chairs and CRCHUS scolarship Disclosure of Interest None Declared
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Affiliation(s)
- M Hamilton
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - Z Mars
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - M Sedeuil
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - M Rolland
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - D Jean
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - V Giroux
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
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Simmons MB, Chinnery G, Whitson S, Bostock S, Braybrook J, Hamilton M, Killackey E, Brushe M. Implementing a combined individual placement and support and vocational peer work program in integrated youth mental health settings. Early Interv Psychiatry 2023; 17:412-421. [PMID: 36683278 DOI: 10.1111/eip.13387] [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: 02/25/2022] [Revised: 10/23/2022] [Accepted: 01/01/2023] [Indexed: 01/24/2023]
Abstract
AIM To describe the implementation and outcomes of a combined individual placement and support (IPS) and vocational peer work program for young people with mental ill-health. METHODS This uncontrolled pilot study co-located IPS workers and vocational peer workers within two integrated youth mental health services (provided to clients aged 15-25 years old). Employment outcomes included job placements (working 15 hours or more per week in a paid competitive job in the open employment market) and sustained employment (employed for at least 26 weeks). Participants who required additional assistance also received peer work. RESULTS Of the 326 young people enrolled, 195 (59.8%) achieved competitive employment, including 157 (48.2%) in funder-approved placements. Among those in approved placements, 87 (55.4%) achieved sustained employment. For the 116 participants additionally receiving vocational peer work, 54 (46.6%) worked in funder-approved placements, of whom 27 (50.0%) achieved sustained employment. Among 210 participants who did not receive peer work, 103 (49.0%) worked in funder-approved placements, of whom 60 (58.3%) achieved sustained employment. CONCLUSIONS The program achieved positive vocational outcomes and good fidelity to the IPS model. Approximately half of young people had employment placements, with a relatively high proportion maintained over time. The similar proportion of placements for those who did and did not receive peer work was encouraging given the IPS team determined that the former group needed additional support. Recommendations include upskilling the workforce, a data linkage system to obtain placement evidence, and using implementation science methodologies to understand how IPS programs are successfully embedded. This demands a coordinated effort between governments and funders, policymakers, services, and professional bodies.
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Affiliation(s)
- Magenta B Simmons
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | | | - Sarah Whitson
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | | | | | - Matthew Hamilton
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Eóin Killackey
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Mary Brushe
- Telethon Kids Institute, University of Western Australia, Adelaide, South Australia, Australia.,School of Public Health, University of Adelaide, Adelaide, South Australia, Australia
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Hamilton M, Turpin V, Ayoub A, Reihani A, Arredondo J, Ask K, Clark DA, Foster WG. Circulating CD200 is increased in the secretory phase of women with endometriosis as is endometrial mRNA, and endometrial stromal cell CD200R1 is increased in spite of reduced mRNA. Am J Reprod Immunol 2023; 89:e13655. [PMID: 36379046 DOI: 10.1111/aji.13655] [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] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/26/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
PROBLEM Estrogen-dependent extrauterine implantation and growth of menstrual endometrial tissue affects roughly 10% of reproductive age women and depends on suppression of local innate immune defenses to prevent ectopic tissue rejection. Immunohistochemistry has shown the immune check-point inhibitor CD200 which can suppress rejection is expressed in eutopic endometrium and in ectopic deposits. Soluble CD200 accumulated in venules draining eutopic and ectopic endometrium of endometriosis cases in the secretory phase but not proliferative phase of the menstrual cycle, and should be increased in the circulation. METHOD OF STUDY Sera from endometriosis and non-endometriosis controls were tested by ELISA for CD200. Endometrial CD200, CD200R1 and CD200R2 mRNA in eutopic was quantified by RT-PCR and localized by in situ hybridization. CD200R1 protein was quantified by immunohistochemistry. RESULTS Secretory phase serum CD200 was elevated in women with endometriosis compared to controls. Serum CD200 correlated with matched endometrial CD200 mRNA levels. Expression of mRNA for CD200R1 which signals immune suppression was decreased whereas mRNA for the CD200R2 activating receptor was increased. In situ staining of CD200R1 and CD200R2 mRNA showed both receptors were expressed and the fraction of CD200R that is CD200R1 was reduced in secretory and menstrual phase endometriosis endometrium consistent with the RT-PCR result. By contrast, CD200R1 protein and CD200R1 fraction of total CD200R protein were increased in endometriosis. CONCLUSIONS Failure to suppress circulating CD200 levels in the secretory phase had an 87% specificity and 90% sensitivity for endometriosis. CD200 and increased CD200R1 expression may facilitate development of ectopic deposits by suppressing rejection mechanisms.
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Affiliation(s)
- Matthew Hamilton
- Department of Obstetrics and Gynecology, McMaster University, Health Sciences Centre, 1280 Main St. West, Hamilton, Ontario, Canada
| | - Victoria Turpin
- Department of Obstetrics and Gynecology, McMaster University, Health Sciences Centre, 1280 Main St. West, Hamilton, Ontario, Canada
| | - Anmar Ayoub
- Department of Medicine, McMaster University, Firestone Institute, St. Joseph's Hospital, Hamilton, Ontario, Canada
| | - Amir Reihani
- Department of Medicine, McMaster University, Firestone Institute, St. Joseph's Hospital, Hamilton, Ontario, Canada
| | - Jorge Arredondo
- Department of Pathology and Molecular Medicine, McMaster University, Heath Sciences Center, Hamilton, Ontario, Canada
| | - Kjetil Ask
- Department of Medicine, McMaster University, Firestone Institute, St. Joseph's Hospital, Hamilton, Ontario, Canada
| | - David A Clark
- Department of Pathology and Molecular Medicine, McMaster University, Heath Sciences Center, Hamilton, Ontario, Canada.,Department of Medicine, McMaster University, Health Sciences Centre, 1280 Main St. West, Hamilton, Ontario, Canada
| | - Warren G Foster
- Department of Obstetrics and Gynecology, McMaster University, Health Sciences Centre, 1280 Main St. West, Hamilton, Ontario, Canada
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18
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Hamilton M, Russell S, Menezes K, Moskovtsev SI, Librach C. Assessing spermatozoal small ribonucleic acids and their relationship to blastocyst development in idiopathic infertile males. Sci Rep 2022; 12:20010. [PMID: 36411317 PMCID: PMC9678953 DOI: 10.1038/s41598-022-24568-w] [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: 07/25/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022] Open
Abstract
Clinical testing strategies for diagnosing male factor infertility are limited. A deeper analysis of spermatozoa-derived factors could potentially diagnose some cases of 'unexplained infertility'. Spermatozoa carry a rich and dynamic profile of small RNAs, which have demonstrated potential developmental importance and association with fertility status. We used next-generation sequencing to correlate sperm small RNA profiles of normozoospermic males (n = 54) with differing blastocyst development rates, when using young donor oocytes. While ribosomal RNAs accounted for the highest number of sequencing reads, transfer RNA fragments of tRNAGly/GCC and tRNAVal-CAC were the most abundant sequences across all sperm samples. A total of 324 small RNAs were differentially expressed between samples with high (n = 18) and low (n = 14) blastocyst rates (p-adj < 0.05). Ninety three miRNAs were differentially expressed between these groups (p-adj < 0.05). Differentially expressed transfer RNA fragments included: 5'-tRF-Asp-GTC; 5'-tRF-Phe-GAA; and 3'-tRF-Ser-GCA. Differentially expressed miRNAs included: let-7f-2-5p; miR-4755-3p; and miR-92a-3p. This study provides the foundation on which to validate a clinical panel of fertility-related sperm small RNAs, as well as to pursue potential mechanisms through which they alter blastocyst development.
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Affiliation(s)
| | | | - Karen Menezes
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada
| | - Sergey I. Moskovtsev
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON Canada
| | - Clifford Librach
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Physiology and Institute of Medical Sciences, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Sunnybrook Research Institute, Toronto, ON Canada
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19
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Sophocleous F, Standen L, Doolub G, Laymouna R, Bucciarelli-Ducci C, Caputo M, Manghat N, Hamilton M, Curtis S, Biglino G. Left ventricular morphology in patients with aortic coarctation and bicuspid aortic valve: novel insights from a statistical shape modelling framework. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.261] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The functional implications of left ventricular (LV) morphological characterization in congenital heart disease (CHD) are not widely explored.
Purpose
This study qualitatively and quantitatively assessed LV shape associations with a) LV function and b) thoracic aortic morphology in patients with aortic coarctation (CoA) with/without bicuspid aortic valve (BAV).
Methods
A statistical shape modelling (SSM) framework was employed to analyse three-dimensional (3D) LV shapes from cardiac magnetic resonance (CMR) imaging data in n=110 cases including: isolated CoA (n=25), CoA+BAV (n=30), isolated BAV (n=30), and age-matched healthy controls (n=25). Average 3D templates (Picture 1) and deformations were computed. Correlations between shape data and CMR-derived morphometric parameters (i.e. sphericity, conicity) as well as CMR-derived global and apical strain values were assessed to elucidate possible functional implications. The relationship between LV shape features and arch architecture (i.e. gothicity, tortuosity) was also explored by means of regression analysis.
Results
The LV template was shorter and more spherical in CoA patient (Picture 1), as also confirmed by statistical analysis of the SSM-derived shape modes. LV sphericity, which was higher in CoA, was associated (p≤0.04) with lower global longitudinal, radial and circumferential strain, irrespective of the presence of aortic stenosis and/or regurgitation. Conversely, neither LV morphology nor LV strain was not associated with arch architecture.
Conclusions
Differences in LV morphology were observed between CoA and BAV patients. Increasing LV sphericity was associated with reduced strain, independent of aortic arch architecture and functional aortic valve disease.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): British Heart Foundation and NIHR BRC
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Affiliation(s)
| | - L Standen
- University of Bristol , Bristol , United Kingdom
| | - G Doolub
- Bristol Heart Institute , Bristol , United Kingdom
| | - R Laymouna
- Bristol Heart Institute , Bristol , United Kingdom
| | | | - M Caputo
- Bristol Heart Institute , Bristol , United Kingdom
| | - N Manghat
- Bristol Heart Institute , Bristol , United Kingdom
| | - M Hamilton
- Bristol Heart Institute , Bristol , United Kingdom
| | - S Curtis
- Bristol Heart Institute , Bristol , United Kingdom
| | - G Biglino
- University of Bristol , Bristol , United Kingdom
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20
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Larkin J, Squifflet P, Saad E, Mohr P, Kurt M, Moshyk A, Hamilton M, Kotapati S, Buyse M. 816P Investigating surrogate endpoints (SE) for overall survival (OS) in first-line (1L) advanced melanoma: A pooled-analysis of immune checkpoint inhibitor (ICI) trials. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.942] [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: 11/28/2022] Open
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21
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Shuman JK, Balch JK, Barnes RT, Higuera PE, Roos CI, Schwilk DW, Stavros EN, Banerjee T, Bela MM, Bendix J, Bertolino S, Bililign S, Bladon KD, Brando P, Breidenthal RE, Buma B, Calhoun D, Carvalho LMV, Cattau ME, Cawley KM, Chandra S, Chipman ML, Cobian-Iñiguez J, Conlisk E, Coop JD, Cullen A, Davis KT, Dayalu A, De Sales F, Dolman M, Ellsworth LM, Franklin S, Guiterman CH, Hamilton M, Hanan EJ, Hansen WD, Hantson S, Harvey BJ, Holz A, Huang T, Hurteau MD, Ilangakoon NT, Jennings M, Jones C, Klimaszewski-Patterson A, Kobziar LN, Kominoski J, Kosovic B, Krawchuk MA, Laris P, Leonard J, Loria-Salazar SM, Lucash M, Mahmoud H, Margolis E, Maxwell T, McCarty JL, McWethy DB, Meyer RS, Miesel JR, Moser WK, Nagy RC, Niyogi D, Palmer HM, Pellegrini A, Poulter B, Robertson K, Rocha AV, Sadegh M, Santos F, Scordo F, Sexton JO, Sharma AS, Smith AMS, Soja AJ, Still C, Swetnam T, Syphard AD, Tingley MW, Tohidi A, Trugman AT, Turetsky M, Varner JM, Wang Y, Whitman T, Yelenik S, Zhang X. Reimagine fire science for the anthropocene. PNAS Nexus 2022; 1:pgac115. [PMID: 36741468 PMCID: PMC9896919 DOI: 10.1093/pnasnexus/pgac115] [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] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 08/02/2022] [Indexed: 02/07/2023]
Abstract
Fire is an integral component of ecosystems globally and a tool that humans have harnessed for millennia. Altered fire regimes are a fundamental cause and consequence of global change, impacting people and the biophysical systems on which they depend. As part of the newly emerging Anthropocene, marked by human-caused climate change and radical changes to ecosystems, fire danger is increasing, and fires are having increasingly devastating impacts on human health, infrastructure, and ecosystem services. Increasing fire danger is a vexing problem that requires deep transdisciplinary, trans-sector, and inclusive partnerships to address. Here, we outline barriers and opportunities in the next generation of fire science and provide guidance for investment in future research. We synthesize insights needed to better address the long-standing challenges of innovation across disciplines to (i) promote coordinated research efforts; (ii) embrace different ways of knowing and knowledge generation; (iii) promote exploration of fundamental science; (iv) capitalize on the "firehose" of data for societal benefit; and (v) integrate human and natural systems into models across multiple scales. Fire science is thus at a critical transitional moment. We need to shift from observation and modeled representations of varying components of climate, people, vegetation, and fire to more integrative and predictive approaches that support pathways toward mitigating and adapting to our increasingly flammable world, including the utilization of fire for human safety and benefit. Only through overcoming institutional silos and accessing knowledge across diverse communities can we effectively undertake research that improves outcomes in our more fiery future.
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Affiliation(s)
- Jacquelyn K Shuman
- Terrestrial Sciences Section, Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000, USA
| | - Jennifer K Balch
- Earth Lab, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder,4001 Discovery Drive, Suite S348 611 UCB, Boulder, CO, 80303, USA
| | - Rebecca T Barnes
- Environmental Studies Program, Colorado College, 14 East Cache la Poudre, Colorado Springs, CO, 80903, USA
| | - Philip E Higuera
- Department of Ecosystem and Conservation Sciences, University of Montana, 32 Campus Dr., Missoula, MT, 59812, USA
| | - Christopher I Roos
- Department of Anthropology, Southern Methodist University, P.O. Box 750336, Dallas, TX, 75275-0336, USA
| | - Dylan W Schwilk
- Department of Biological Sciences, Texas Tech University, 2901 Main St. Lubbock, TX, 79409-43131, USA
| | - E Natasha Stavros
- Earth Lab, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder,4001 Discovery Drive, Suite S348 611 UCB, Boulder, CO, 80303, USA
| | - Tirtha Banerjee
- Samueli School of Engineering, University of California, 3084 Interdisciplinary Science and Engineering Building, UC Irvine, CA 92697, USA
| | - Megan M Bela
- Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado at Boulder, 216 UCB, Boulder CO, 80309, USA
- NOAA Chemical Sciences Laboratory, Boulder, CO, USA
| | - Jacob Bendix
- Department of Geography and the Environment, Syracuse University, 144 Eggers Hall, Syracuse NY 13244, USA
| | - Sandro Bertolino
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Torino, Italy
| | - Solomon Bililign
- Department of Physics, North Carolina A&T State University, 1601 E Market Street, Greensboro, NC 27411, USA
| | - Kevin D Bladon
- Department of Forest Engineering, Resources, and Management, Oregon State University, 244 Peavy Forest Science Center; Corvallis, OR, 97331, USA
| | - Paulo Brando
- Earth System Science, University of California Irvine, 3215 Croul Hall Irvine, CA 92697, USA
| | - Robert E Breidenthal
- Department of Aeronautics and Astronautics, University of Washington, Box 352400, Seattle, WA 98195-2400, USA
| | - Brian Buma
- Integrative Biology, University of Colorado Denver, Campus Box 171, P.O. Box 173364, Denver, CO 80217-3364, USA
| | - Donna Calhoun
- Department of Mathematics, Boise State University, 1910 University Drive, Boise, ID 83725-1135, USA
| | - Leila M V Carvalho
- Department of Geography, University of California Santa Barbara, 1832 Ellison Hall, Santa Barbara, CA, 93106, USA
| | - Megan E Cattau
- Human-Environment Systems, Boise State University, Boise State Environmental Research Building, 1295 W University Dr, Boise, ID 83706, USA
| | - Kaelin M Cawley
- National Ecological Observatory Network, Battelle, 1685 38th St., Suite 100, Boulder, CO 80301, USA
| | - Sudeep Chandra
- Global Water Center, University of Nevada, 1664 N. Virginia, Reno, NV, 89509, USA
| | - Melissa L Chipman
- Department of Earth and Environmental Sciences, Syracuse University, 317 Heroy Geology Building, 141 Crouse Dr, Syracuse, NY 13210, USA
| | - Jeanette Cobian-Iñiguez
- Department of Mechanical Engineering, University of California Merced, Sustainability Research and Engineering, SRE 366, 5200 Lake Rd, Merced, CA 95343, USA
| | - Erin Conlisk
- Point Blue Conservation Science, 3820 Cypress Dr, Petaluma, CA 94954, USA
| | - Jonathan D Coop
- Clark School of Environment and Sustainability, Western Colorado University, 1 Western Way, Gunnison CO 81231, USA
| | - Alison Cullen
- Evans School of Public Policy and Governance, University of Washington, Parrington Hall, Mailbox 353055, Seattle, WA 98195-3055, USA
| | - Kimberley T Davis
- Department of Ecosystem and Conservation Sciences, University of Montana, 32 Campus Dr., Missoula, MT, 59812, USA
| | - Archana Dayalu
- Atmospheric and Environmental Research, 131 Hartwell Ave, Lexington MA 02421, USA
| | - Fernando De Sales
- Department of Geography, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182-4493, USA
| | - Megan Dolman
- Human-Environment Systems, Boise State University, Boise State Environmental Research Building, 1295 W University Dr, Boise, ID 83706, USA
| | - Lisa M Ellsworth
- Department of Fisheries, Wildlife, and Conservation Sciences, Oregon State University, 104 Nash Hall, Corvallis, OR 97330, USA
| | - Scott Franklin
- School of Biological Sciences, University of Northern Colorado, 501 20th Street, Greeley, CO 80639, USA
| | - Christopher H Guiterman
- Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado at Boulder, 216 UCB, Boulder CO, 80309, USA
- NOAA's National Centers for Environmental Information (NCEI), 325 Broadway, NOAA E/GC3, Boulder, Colorado 80305-3337, USA
| | - Matthew Hamilton
- School of Environment and Natural Resources, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, USA
| | - Erin J Hanan
- Department of Natural Resources and Environmental Science, University of Nevada, 1664 N. Virginia St. Mail Stop 0186. Reno, NV 89509, USA
| | - Winslow D Hansen
- Cary Institute of Ecosystem Studies, PO Box AB, Millbrook, NY 12545, USA
| | - Stijn Hantson
- Earth System Science Program, Faculty of Natural Sciences, Max Planck Tandem Group in Earth System Science, Universidad del Rosario, Carrera 26 # 63b-48, Bogota, DC 111221, Colombia
| | - Brian J Harvey
- School of Environmental and Forest Sciences, University of Washington, UW-SEFS, Box 352100, Seattle, WA 98195, USA
| | - Andrés Holz
- Department of Geography, Portland State University, 1721 SW Broadway, Portland, OR 97201, USA
| | - Tao Huang
- Human-Environment Systems, Boise State University, Boise State Environmental Research Building, 1295 W University Dr, Boise, ID 83706, USA
| | - Matthew D Hurteau
- Department of Biology, University of New Mexico, MSC03 2020, Albuquerque, NM 87131, USA
| | - Nayani T Ilangakoon
- Earth Lab, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder,4001 Discovery Drive, Suite S348 611 UCB, Boulder, CO, 80303, USA
| | - Megan Jennings
- Institute for Ecological Monitoring and Management, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182-4614, USA
| | - Charles Jones
- Department of Geography, University of California Santa Barbara, 1832 Ellison Hall, Santa Barbara, CA, 93106, USA
| | | | - Leda N Kobziar
- College of Natural Resources, University of Idaho, 1031 N. Academic Way Coeur d'Alene, ID 83844, USA
| | - John Kominoski
- Institute of Environment and Department of Biological Sciences, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, USA
| | - Branko Kosovic
- Weather Systems and Assessment Program, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000, USA
| | - Meg A Krawchuk
- Department of Forest Ecosystems and Society, Oregon State University, Richardson Hall, Corvallis, OR 97331, USA
| | - Paul Laris
- Department of Geography, California State University Long Beach, Long Beach, 1250 Bellflower Blvd, Long Beach, CA 90840, USA
| | - Jackson Leonard
- Rocky Mountain Research Station, U.S.D.A. Forest Service, 2500 S. Pine Knoll Dr. Flagstaff, Arizona 86001, USA
| | | | - Melissa Lucash
- Department of Geography, University of Oregon, 1251 University of Oregon, Eugene OR 97403-1251, USA
| | - Hussam Mahmoud
- Department of Civil and Environmental Engineering, Colorado State University, 1372 Campus Delivery, Fort Collins, CO, 80523, USA
| | - Ellis Margolis
- U.S. Geological Survey, Fort Collins Science Center, New Mexico Landscapes Field Station, 15 Entrance Rd., Los Alamos, NM 87544, USA
| | - Toby Maxwell
- Department of Biological Sciences, Boise State University, 1910 University Dr. Boise ID 83725, USA
| | - Jessica L McCarty
- Department of Geography and Geospatial Analysis Center, Miami University, 217 Shideler Hall, Oxford, OH 45056, USA
| | - David B McWethy
- Department of Earth Sciences, Montana State University, 226 Traphagen Hall, Bozeman, MT 59717, USA
| | - Rachel S Meyer
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, 130 McAllister Way, Santa Cruz, CA 95060, USA
| | - Jessica R Miesel
- Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue Street Rm A286, East Lansing, MI 48823, USA
| | - W Keith Moser
- Rocky Mountain Research Station, U.S.D.A. Forest Service, 2500 S. Pine Knoll Dr. Flagstaff, Arizona 86001, USA
| | - R Chelsea Nagy
- Earth Lab, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder,4001 Discovery Drive, Suite S348 611 UCB, Boulder, CO, 80303, USA
| | - Dev Niyogi
- Jackson School of Geosciences, and Cockrell School of Engineering, University of Texas at Austin, 2305 Speedway Stop C1160, Austin, TX 78712-1692, USA
| | - Hannah M Palmer
- Department of Life and Environmental Sciences, University of California Merced, Merced, 5200 Lake Rd, Merced, CA 95343, USA
| | - Adam Pellegrini
- Department of Plant Sciences, University of Cambridge, Downing St, Cambridge, CB2 3EA, UK
| | - Benjamin Poulter
- NASA Goddard Space Flight Center, Greenbelt Road, Greenbelt, MD 20771, USA
| | - Kevin Robertson
- Tall Timbers Research Station and Land Conservancy, 13093 Henry Beadel Drive, Tallahassee, FL 32312, USA
| | - Adrian V Rocha
- Department of Biological Sciences, University of Notre Dame, 100 Campus Dr., Notre Dame, IN 46556, USA
| | - Mojtaba Sadegh
- Department of Civil Engineering, Boise State University, 1910 University Drive, Boise, ID, 83725, USA
| | - Fernanda Santos
- Environmental Sciences Division, Oak Ridge National Laboratory, One Bethel Valley Road, P.O. Box 2008, MS-6038, Oak Ridge, TN 37831-6038, USA
| | - Facundo Scordo
- Global Water Center and the Department of Biology, University of Nevada, 1664 N. Virginia, Reno, NV, 89509, USA
- Instituto Argentino de Oceanografía (IADO-CONICET-UNS), Florida 8000, Bahía Blanca, B8000BFW Buenos Aires, Argentina
| | - Joseph O Sexton
- terraPulse, Inc., 13201 Squires Ct., North Potomac, MD 20878, USA
| | - A Surjalal Sharma
- Department of Astronomy, University of Maryland, 4296 Stadium Dr., Astronomy Dept Room 1113, College Park, MD 20742, USA
| | - Alistair M S Smith
- Department of Earth and Spatial Sciences, College of Science, University of Idaho, 875 Perimeter Drive MS 3021, Moscow ID, 83843-3021, USA
- Department of Forest, Rangeland, and Fire Science, College of Natural Resources, University of Idaho, 875 Perimeter Drive MS 1133, Moscow, ID 83844-1133, USA
| | - Amber J Soja
- NASA Langley Research Center, NASA, 2 Langley Blvd, Hampton, VA 23681, USA
- National Institute of Aerospace, NASA, 100 Exploration Way, Hampton, VA 23666, USA
| | - Christopher Still
- Department of Forest Ecosystems and Society, Oregon State University, Richardson Hall, Corvallis, OR 97331, USA
| | - Tyson Swetnam
- Data Science Institute, University of Arizona, 1657 E Helen St, Tucson, AZ 85721, USA
| | - Alexandra D Syphard
- Conservation Biology Institute, 10423 Sierra Vista Ave., La Mesa, CA, 91941, USA
| | - Morgan W Tingley
- Ecology and Evolutionary Biology, University of California Los Angeles, 621 Charles E Young Dr S #951606, Los Angeles, CA 90095, USA
| | - Ali Tohidi
- Department of Mechanical Engineering, San Jose State University, Room 310-K, ENG Building, 1 Washington Square, San Jose, CA 95112, USA
| | - Anna T Trugman
- Department of Geography, University of California Santa Barbara, 1832 Ellison Hall, Santa Barbara, CA, 93106, USA
| | - Merritt Turetsky
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Campus Box 450, Boulder, CO 80309-0450, USA
| | - J Morgan Varner
- Tall Timbers Research Station and Land Conservancy, 13093 Henry Beadel Drive, Tallahassee, FL 32312, USA
| | - Yuhang Wang
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, USA
| | - Thea Whitman
- Department of Soil Science, University of Wisconsin-Madison, 1525 Observatory Dr., Madison, WI 53711, USA
| | - Stephanie Yelenik
- Rocky Mountain Research Station, U.S.D.A. Forest Service, 920 Valley Road, Reno NV, 89512, USA
| | - Xuan Zhang
- Department of Life and Environmental Sciences, University of California Merced, Merced, 5200 Lake Rd, Merced, CA 95343, USA
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22
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Hamilton M, Russell S, Moskovtsev S, Librach C. O-135 Sperm-borne small ribonucleic acid profile significantly impacts embryo development. Hum Reprod 2022. [DOI: 10.1093/humrep/deac105.035] [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: 11/14/2022] Open
Abstract
Abstract
Study question
Do normozoospermic males with reduced pre-implantation embryo development have aberrant sperm small RNA profiles?
Summary answer
Small RNA sequencing suggests the small RNA profile may differ in normozoospermic males with low blastocyst development rates, compared to males with higher blastocyst progression.
What is known already
Current male factor infertility diagnostics are insufficient, with 30-50% of subfertile males having unknown etiology. Spermatozoa contain a complex, epigenetically-marked genome and a collection of RNAs and proteins, which are not adequately assessed by current diagnostic methods. The sperm small RNA payload is reportedly modified during epididymal transit and in response to paternal exposures, influencing which sperm small RNA species are delivered to the oocyte. Mechanistic animal studies and correlative human and animal studies have suggested that sperm small RNAs may be important for early embryonic development and health of offspring, though their diagnostic and therapeutic value are still unclear.
Study design, size, duration
Human semen samples were collected between April 2017 and August 2020 from a total of 56 male patients presenting to CReATe Fertility Centre for fertility evaluation. Clinical data was accessed retrospectively. All patients were normozoospermic, according to standard semen analysis and were using donor oocytes. Samples were divided into high (n = 20), average (n = 16), and low (n = 20) fertility groups based on their deviation (1 standard deviation) from the mean blastocyst rate.
Participants/materials, setting, methods
Semen analysis was undertaken immediately following sample collection and spermatozoa were isolated by centrifugation. Sperm small RNA was purified and eluted using the RNeasy and MiRNeasy Kits (Qiagen). Barcoded and amplified cDNA libraries were prepared from small RNA using the NEXTFLEX Small RNA-Seq Kit v3 (Bioo Scientific). Resulting libraries were pooled, size-selected to a range of 140-190 base pairs, denatured and diluted for sequencing. Single-end, 75 bp sequencing was performed using the NextSeq 550 (Illumina).
Main results and the role of chance
Sequencing generated approximately 300 million raw reads, with 30 samples exceeding 2 million reads included in the differential expression analysis. Most reads were mapped to rRNAs (69%), miRNAs (11%), and piRNAs (12%). However, transfer RNA fragments from tRNA-Gly-GCC and tRNA-Val-CAC were the most abundant sequences. Top annotated miRNAs include: miR-12136-5p; miR-21-5p; and miR-122-5p. Principal component analysis revealed 222 genes that were differentially expressed between the high (n = 14) and low (n = 11) fertility groups (p < 0.05). Interestingly, the top 50 differentially expressed sRNAs are sufficient to effectively cluster sperm with poor blastocyst development rates.
Limitations, reasons for caution
The results are limited by a relatively low sequencing depth (mean of 4.1 million reads per sample) and sample size. Fertility groups were determined by blastocyst rates, which can be confounded by non-sperm-derived variables, including technical skill, embryo culturing conditions, and maternal factors (though donor oocytes were used).
Wider implications of the findings
With additional validation, a clinically-useful panel of differentially expressed sperm small RNAs could be used to predict IVF success and evaluate therapies aimed at improving male reproductive health. Augmenting traditional semen analytics with diagnostic sperm small RNA analysis could reduce time to pregnancy and the psychosocial impacts of fertility treatment.
Trial registration number
Not applicable
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Affiliation(s)
- M Hamilton
- CReATe Fertility Centre, Research , Toronto, Canada
| | - S Russell
- CReATe Fertility Centre, Research , Toronto, Canada
| | - S Moskovtsev
- University of Toronto, Department of Obstetrics and Gynecology , Toronto, Canada
| | - C Librach
- University of Toronto, Department of Obstetrics and Gynecology , Toronto, Canada
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23
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Teigen L, Mathai PP, Lopez S, Matson M, Elkin B, Kozysa D, Kabage AJ, Hamilton M, Vaughn BP, Sadowsky MJ, Khoruts A. Differential hydrogen sulfide production by a human cohort in response to animal- and plant-based diet interventions. Clin Nutr 2022; 41:1153-1162. [PMID: 35500315 DOI: 10.1016/j.clnu.2022.03.028] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Hydrogen sulfide (H2S) is a toxic end-product of microbial fermentation produced in the colon that may play a role in the pathogenesis of several diseases, including ulcerative colitis and colon cancer. However, the effect of diet interventions on intestinal burden of H2S gas exposure remains poorly understood. OBJECTIVE Determine the effect of short-term (1-week) plant- and animal-based eating patterns on ex vivo fecal H2S production in healthy human volunteers. METHODS The study design was an open-label, cross-over diet study and diets were self-administered. Each participant consumed two interventional diets: 1) an animal-based, low fiber (i.e. western) diet and 2) a plant-based, high fiber diet, separated by a two-week washout period. Participants collected full stool samples at the end of each week, which were processed within 2 h of collection to capture H2S production. Microfluidic qPCR (MFQPCR) was used to simultaneously quantify multiple taxonomic and functional groups involved in sulfate reduction and the fecal microbiota was characterized through high-throughput DNA sequencing. RESULTS Median H2S production was higher following the animal-based diet compared to the plant-based diet (p = 0.02; median difference 29 ppm/g, 95% CI 16-97). However, there was substantial individual variability and 2 of 11 individuals (18%) produced more H2S on the plant-based diet. Using the top and bottom quartiles of H2S percent change between animal- and plant-based diet weeks to define responders and non-responders, significant taxonomic differences were observed between the responder and non-responder cohorts. CONCLUSIONS Here we report that substrate changes associated with a 1-week plant-based diet intervention resulted in lower ex vivo H2S production compared to a 1-week animal-based diet intervention in most healthy individuals. However, H2S responsiveness to diet was not uniform across the entire cohort, and potential H2S production enterotypes were characterized that may predict individualized H2S responsiveness to diet.
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Affiliation(s)
- Levi Teigen
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Prince P Mathai
- BioTechnology Institute, University of Minnesota, St. Paul, MN, USA
| | - Sharon Lopez
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Michael Matson
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Baila Elkin
- Medical School, University of Minnesota, Minneapolis, MN, USA
| | - Daria Kozysa
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Amanda J Kabage
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Matthew Hamilton
- BioTechnology Institute, University of Minnesota, St. Paul, MN, USA
| | - Byron P Vaughn
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Michael J Sadowsky
- BioTechnology Institute, University of Minnesota, St. Paul, MN, USA; Department of Soil, Water, and Climate, USA; Department of Plant and Microbial Biology, USA
| | - Alexander Khoruts
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA; BioTechnology Institute, University of Minnesota, St. Paul, MN, USA; Center for Immunology, University of Minnesota, Minneapolis, MN, USA.
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24
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Kwon V, Cai P, Dixon CT, Hamlin V, Spencer CG, Rojas AM, Hamilton M, Shiau CE. Peripheral NOD-like receptor deficient inflammatory macrophages trigger neutrophil infiltration into the brain disrupting daytime locomotion. Commun Biol 2022; 5:464. [PMID: 35577844 PMCID: PMC9110401 DOI: 10.1038/s42003-022-03410-z] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 04/25/2022] [Indexed: 11/09/2022] Open
Abstract
Inflammation is known to disrupt normal behavior, yet the underlying neuroimmune interactions remain elusive. Here, we investigated whether inappropriate macrophage-evoked inflammation alters CNS control of daily-life animal locomotion using a set of zebrafish mutants selected for specific macrophage dysfunction and microglia deficiency. Large-scale genetic and computational analyses revealed that NOD-like receptor nlrc3l mutants are capable of normal motility and visuomotor response, but preferentially swim less in the daytime, suggesting possible low motivation rather than physical impairment. Examining their brain activities and structures implicates impaired dopaminergic descending circuits, where neutrophils abnormally infiltrate. Furthermore, neutrophil depletion recovered daytime locomotion. Restoring wild-type macrophages reversed behavioral and neutrophil aberrations, while three other microglia-lacking mutants failed to phenocopy nlrc3l mutants. Overall, we reveal how peripheral inflammatory macrophages with elevated pro-inflammatory cues (including il1β, tnfα, cxcl8a) in the absence of microglia co-opt neutrophils to infiltrate the brain, thereby potentially enabling local circuitry modulation affecting daytime locomotion.
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Affiliation(s)
- Victoria Kwon
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Peiwen Cai
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Cameron T Dixon
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Victoria Hamlin
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Caroline G Spencer
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alison M Rojas
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Matthew Hamilton
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Celia E Shiau
- Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. .,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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25
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Finger JW, Kelley M, Hamilton M, Zhang Y, Elsey R, Mendonca M, Kavazis AN. Changes in antioxidant enzyme levels following capture in juvenile American Alligators (Alligator mississippiensis) are tissue dependent. CAN J ZOOL 2022. [DOI: 10.1139/cjz-2021-0231] [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: 11/22/2022]
Abstract
Many parameters used to investigate stress in vertebrates are temporally sensitive. The act of capture and sampling can influence them, hindering their functionality for evaluating the effects of stressors. Consequently, the investigation and subsequent incorporation of less time sensitive parameters are necessary to better evaluate stressors affecting vertebrates. In this study, we investigated how capture stress and handling associated with sampling influences antioxidant status in American Alligators (Alligator mississippiensis, Daudin, 1802; hereafter Alligator), long-lived, top-trophic carnivores found in the southeastern United States, by measuring levels of two antioxidant enzymes in destructive (brain and pancreas) and nondestructive (tail scutes) tissues: superoxide-dismutase-1 (SOD1) and glutathione peroxidase-1 (GPX1). Capture stress had no effect on pancreatic SOD1 and no effect on brain and pancreatic GPX1 (all p > 0.05). However, brain SOD1, scute SOD1, and scute GPX1 were all impacted by capture stress. These disparate results illustrate that the influence of capture stress on antioxidant enzymes in Alligators is tissue and marker dependent, necessitating further investigation. Our results provide a firm foundation to further investigate oxidative status in crocodilians.
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Affiliation(s)
- John W. Finger
- Auburn University, 1383, Department of Biological Sciences, Auburn, United States, 36849-5412
| | - Meghan Kelley
- Auburn University, 1383, Auburn, Alabama, United States
| | - Matthew Hamilton
- Purdue University, 311308, West Lafayette, Indiana, United States
| | - Yufeng Zhang
- The University of Memphis, 5415, Memphis, Tennessee, United States
| | - Ruth Elsey
- Departement of wildlife and fisheries, Louisiana, USA, 5476 Grand Chenier Highway, Grand Chenier, United States, 70643
| | - Mary Mendonca
- Auburn University, 1383, Auburn, Alabama, United States
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26
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Kittleson M, Patel J, Kransdorf E, Singer-Englar T, Patel N, Rubio M, Musto N, Hamilton M, Emerson D, Czer L, Kobashigawa J. Are Markedly Oversized Donor Hearts Associated with Poor Outcome After Heart Transplantation? J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1384] [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] Open
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27
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Dhillon M, Patel J, Kittleson M, Chang D, Patel N, Singer-Englar T, Hamilton M, Czer L, Megna D, Kobashigawa J. Experience with Eculizumab in Highly Sensitized Patients Undergoing Heart Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.213] [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] Open
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28
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Patel J, Kittleson M, Kransdorf E, Singer-Englar T, Patel N, Kim S, Hage A, Hamilton M, Czer L, Kobashigawa J. Treatment and Outcome of AL Amyloid After Heart Transplantation: Is It Viable? J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1109] [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] Open
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29
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Abbasi RK, Packiasabapathy S, Hamilton M, Walker SG, Mazurek M, Dierdorf S. Ipsilateral double arterial puncture in children. Paediatr Anaesth 2022; 32:581-582. [PMID: 35150182 DOI: 10.1111/pan.14413] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/27/2022] [Accepted: 02/04/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Rania K Abbasi
- Department of Anesthesia, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Senthil Packiasabapathy
- Department of Anesthesia, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Matthew Hamilton
- Department of Anesthesia, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Scott G Walker
- Department of Anesthesia, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Michael Mazurek
- Department of Anesthesia, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Stephen Dierdorf
- Department of Anesthesia, Riley Hospital for Children at Indiana University Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
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30
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Patel J, Kittleson M, Kransdorf E, Singer-Englar T, Patel N, Yamamoto N, Kim S, Hamilton M, Emerson D, Czer L, Kobashigawa J. Sex Differences in Desensitization for Patients Awaiting Heart Transplantation: Is There a Difference? J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1643] [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] Open
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31
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Byrne SJ, Bailey E, Lamblin M, McKay S, Pirkis J, Mihalopoulos C, Spittal MJ, Rice S, Hetrick S, Hamilton M, Yuen HP, Lee YY, Boland A, Robinson J. Study protocol for the Multimodal Approach to Preventing Suicide in Schools (MAPSS) project: a regionally based randomised trial of an integrated response to suicide risk among secondary school students. Trials 2022; 23:186. [PMID: 35236397 PMCID: PMC8889397 DOI: 10.1186/s13063-022-06072-8] [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: 04/05/2021] [Accepted: 01/31/2022] [Indexed: 12/03/2022] Open
Abstract
Background Suicide is the leading cause of death among young Australians, accounting for one-third of all deaths in those under 25. Schools are a logical setting for youth suicide prevention activities, with universal, selective and indicated approaches all demonstrating efficacy. Given that international best practice recommends suicide prevention programmes combine these approaches, and that to date this has not been done in school settings, this study aims to evaluate a suicide prevention programme incorporating universal, selective and indicated components in schools. Methods This study is a trial of a multimodal suicide prevention programme for young people. The programme involves delivering universal psychoeducation (safeTALK) to all students, screening them for suicide risk, and delivering internet-based Cognitive Behavioural Therapy (Reframe IT) to those students identified as being at high risk for suicide. The programme will be trialled in secondary schools in Melbourne, Australia, and target year 10 students (15 and 16 year-olds). safeTALK and screening will be evaluated using a single group pre-test/post-test case series, and Reframe IT will be evaluated in a Randomised Controlled Trial. The primary outcome is change in suicidal ideation; other outcomes include help-seeking behaviour and intentions, and suicide knowledge and stigma. The programme’s cost-effectiveness will also be evaluated. Discussion This study is the first to evaluate a suicide prevention programme comprising universal, selective and indicated components in Australian schools. If the programme is found to be efficacious and cost-effective, it could be more widely disseminated in schools and may ultimately lead to reduced rates of suicide and suicidal behaviour in school students across the region. Supplementary Information The online version contains supplementary material available at 10.1186/s13063-022-06072-8.
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Affiliation(s)
- Sadhbh J Byrne
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Eleanor Bailey
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Michelle Lamblin
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Samuel McKay
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Jane Pirkis
- Centre for Mental Health, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Cathrine Mihalopoulos
- Deakin Health Economics, Institute for Health Transformation, School for Health and Social Development, Faculty of Health, Deakin University, Geelong, Australia
| | - Matthew J Spittal
- Centre for Mental Health, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Simon Rice
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Sarah Hetrick
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia.,Department of Psychological Medicine, The University of Auckland, Auckland, New Zealand
| | - Matthew Hamilton
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Hok Pan Yuen
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Yong Yi Lee
- Deakin Health Economics, Institute for Health Transformation, School for Health and Social Development, Faculty of Health, Deakin University, Geelong, Australia.,School of Public Health, The University of Queensland, Brisbane, Australia.,Policy and Epidemiology Group, Queensland Centre for Mental Health Research, Brisbane, Australia
| | - Alexandra Boland
- Orygen, Parkville, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Jo Robinson
- Orygen, Parkville, Australia. .,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia.
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Cordingley L, Nelson PA, Davies L, Ashcroft D, Bundy C, Chew-Graham C, Chisholm A, Elvidge J, Hamilton M, Hilton R, Kane K, Keyworth C, Littlewood A, Lovell K, Lunt M, McAteer H, Ntais D, Parisi R, Pearce C, Rutter M, Symmons D, Young H, Griffiths CEM. Identifying and managing psoriasis-associated comorbidities: the IMPACT research programme. Programme Grants Appl Res 2022. [DOI: 10.3310/lvuq5853] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background
Psoriasis is a common, lifelong inflammatory skin disease, the severity of which can range from limited disease involving a small body surface area to extensive skin involvement. It is associated with high levels of physical and psychosocial disability and a range of comorbidities, including cardiovascular disease, and it is currently incurable.
Objectives
To (1) confirm which patients with psoriasis are at highest risk of developing additional long-term conditions and identify service use and costs to patient, (2) apply knowledge about risk of comorbid disease to the development of targeted screening services to reduce risk of further disease, (3) learn how patients with psoriasis cope with their condition and about their views of service provision, (4) identify the barriers to provision of best care for patients with psoriasis and (5) develop patient self-management resources and staff training packages to improve the lives of people with psoriasis.
Design
Mixed methods including two systematic reviews, one population cohort study, one primary care screening study, one discrete choice study, four qualitative studies and three mixed-methodology studies.
Setting
Primary care, secondary care and online surveys.
Participants
People with psoriasis and health-care professionals who manage patients with psoriasis.
Results
Prevalence rates for psoriasis vary by geographical location. Incidence in the UK was estimated to be between 1.30% and 2.60%. Knowledge about the cost-effectiveness of therapies is limited because high-quality clinical comparisons of interventions have not been done or involve short-term follow-up. After adjusting for known cardiovascular risk factors, psoriasis (including severe forms) was not found to be an independent risk factor for major cardiovascular events; however, co-occurrence of inflammatory arthritis was a risk factor. Traditional risk factors were high in patients with psoriasis. Large numbers of patients with suboptimal management of known risk factors were found by screening patients in primary care. Risk information was seldom discussed with patients as part of screening consultations, meaning that a traditional screening approach may not be effective in reducing comorbidities associated with psoriasis. Gaps in training of health-care practitioners to manage psoriasis effectively were identified, including knowledge about risk factors for comorbidities and methods of facilitating behavioural change. Theory-based, high-design-quality patient materials broadened patient understanding of psoriasis and self-management. A 1-day training course based on motivational interviewing principles was effective in increasing practitioner knowledge and changing consultation styles. The primary economic analysis indicated a high level of uncertainty. Sensitivity analysis indicated some situations when the interventions may be cost-effective. The interventions need to be assessed for long-term (cost-)effectiveness.
Limitations
The duration of patient follow-up in the study of cardiovascular disease was relatively short; as a result, future studies with longer follow-up are recommended.
Conclusions
Recognition of the nature of the psoriasis and its impact, knowledge of best practice and guideline use are all limited in those most likely to provide care for the majority of patients. Patients and practitioners are likely to benefit from the provision of appropriate support and/or training that broadens understanding of psoriasis as a complex condition and incorporates support for appropriate health behaviour change. Both interventions were feasible and acceptable to patients and practitioners. Cost-effectiveness remains to be explored.
Future work
Patient support materials have been created for patients and NHS providers. A 1-day training programme with training materials for dermatologists, specialist nurses and primary care practitioners has been designed. Spin-off research projects include a national study of responses to psoriasis therapy and a global study of the prevalence and incidence of psoriasis. A new clinical service is being developed locally based on the key findings of the Identification and Management of Psoriasis Associated ComorbidiTy (IMPACT) programme.
Funding
This project was funded by the National Institute for Health Research (NIHR) Programme Grants for Applied Research programme and will be published in full in Programme Grants for Applied Research; Vol. 10, No. 3. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Lis Cordingley
- Division of Musculoskeletal and Dermatological Sciences, University of Manchester, Manchester, UK
| | - Pauline A Nelson
- Dermatology Research Centre, University of Manchester, Manchester, UK
| | - Linda Davies
- Centre for Health Economics, University of Manchester, Manchester, UK
| | - Darren Ashcroft
- Centre for Pharmacoepidemiology and Drug Safety, University of Manchester, Manchester, UK
| | - Christine Bundy
- Dermatology Research Centre, University of Manchester, Manchester, UK
| | | | - Anna Chisholm
- Dermatology Research Centre, University of Manchester, Manchester, UK
| | - Jamie Elvidge
- Centre for Health Economics, University of Manchester, Manchester, UK
| | - Matthew Hamilton
- Centre for Health Economics, University of Manchester, Manchester, UK
| | - Rachel Hilton
- Bridgewater Community Healthcare NHS Foundation Trust, Wigan, UK
| | - Karen Kane
- Dermatology Research Centre, University of Manchester, Manchester, UK
| | | | - Alison Littlewood
- Dermatology Research Centre, University of Manchester, Manchester, UK
| | - Karina Lovell
- School of Nursing, Midwifery and Social Work, University of Manchester, Manchester, UK
| | - Mark Lunt
- Centre for Epidemiology Versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester, UK
| | | | - Dionysios Ntais
- Centre for Health Economics, University of Manchester, Manchester, UK
| | - Rosa Parisi
- Centre for Pharmacoepidemiology and Drug Safety, University of Manchester, Manchester, UK
| | - Christina Pearce
- Dermatology Research Centre, University of Manchester, Manchester, UK
| | - Martin Rutter
- Manchester Diabetes Centre, Manchester University NHS Foundation Trust, Manchester, UK
| | - Deborah Symmons
- Centre for Epidemiology Versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester, UK
| | - Helen Young
- Dermatology Research Centre, University of Manchester, Manchester, UK
- Salford Royal NHS Foundation Trust, Salford, UK
| | - Christopher EM Griffiths
- Dermatology Research Centre, University of Manchester, Manchester, UK
- Salford Royal NHS Foundation Trust, Salford, UK
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Hamilton M, Jean D, Boudreau F, Giroux V. A21 OVEREXPRESSION OF ASCL2 ALTERS DIFFERENTIATION IN ESOPHAGEAL ORGANOIDS. J Can Assoc Gastroenterol 2022. [PMCID: PMC8859347 DOI: 10.1093/jcag/gwab049.020] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background The first population of stem cells in the esophageal epithelium was recently identified with the marker Keratin 15 ( Krt15). However, little is known about the mechanisms underlying the expansion and the function of these stem cells. It was shown that the transcription factor ASCL2 is upregulated in Krt15+ cells compared to Krt15- cells. Interestingly, ASCL2 is a gene target of the Wnt/β-catenin pathway, which acts as a regulator of proliferation and maintenance of the stemness state. The ultimate goal of my research project is to determine the role of ASCL2 in the maintenance of esophageal stem cells and to identify its binding partners. Aims Investigate the role of ASCL2 in esophageal epithelial biology. Methods Lentiviral infection approach was used to obtain mouse esophageal organoids overexpressing ASCL2. Organoid culture, immunostaining (such as IF and H&E), qPCR, WB and proliferation assay were used to characterize the effect of ASCL2 overexpression on morphology, differentiation, proliferation, self-renewal and gene expression. Results First, ASCL2 overexpression was confirmed by WB. Interestingly, the morphology of organoid overexpressing ASCL2 was severely altered: organoids were smaller and less differentiated. Defect in differentiation was investigated by qPCR and IF using relevant markers such as p63, Krt13, Wnt5a and NT5E. Indeed, we observed an increase in basal marker ( p63), a decrease in suprabasal markers ( Krt13, Wnt5a) and in a stem cell marker ( NT5E). We also investigated the role of ASCL2 in self-renewal and observed that organoid formation capacity was reduced in ASCL2-overexpressing organoids. Furthermore, proliferation was also reduced in WST-1 assays. We also observed lower expression of the gene Top2a, a recently identified marker of the proliferative basal cell population in the human esophagus. Finally, we observed significant changes in the expression of genes associated with quiescent stem cells (Clu, ZFP36L2 and Anxa1). Conclusions ASCL2 overexpression alters differentiation and proliferation in organoids. ASCL2 could play a role in orchestrating cell fate decision in the esophageal epithelium. Funding Agencies NSERC, Canada Research Chair
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Affiliation(s)
- M Hamilton
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - D Jean
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - F Boudreau
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - V Giroux
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
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Filia K, Menssink J, Gao CX, Rickwood D, Hamilton M, Hetrick SE, Parker AG, Herrman H, Hickie I, Sharmin S, McGorry PD, Cotton SM. Social inclusion, intersectionality, and profiles of vulnerable groups of young people seeking mental health support. Soc Psychiatry Psychiatr Epidemiol 2022; 57:245-254. [PMID: 34091699 DOI: 10.1007/s00127-021-02123-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 11/02/2020] [Accepted: 06/02/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND headspace centres provide enhanced primary mental healthcare for young people. A priority is to provide services for all young people irrespective of a range of social disadvantages or social exclusion. The aims of this study were to: (i) delineate extent of social inclusion across domains of housing, studying/employment, functioning, alcohol, and other drug use; and (ii) map profiles of young people deemed vulnerable to experiencing additional barriers to accessing services based on their social inclusion domains (e.g., those living in unstable housing, not in employment/education, and/or experiencing intersecting or multiple forms of disadvantage or difficulties), including detailing their clinical characteristics. METHODS Young people were recruited from five headspace centres. Data relevant to social inclusion were examined. Multivariate logistic regression models were used to determine overlap between vulnerable groups, functional, social, clinical, and behavioural factors. RESULTS 1107 young people participated, aged 12-25 years (M = 18.1 years, SD = 3.3), most living in stable housing (96.5%) and engaged in studying/employment (84.8%). Specific vulnerabilities were evident in young people with NEET status (15.2%); in unstable accommodation (3.5%); of culturally diverse backgrounds (CALD) (12.2%); living in regional areas (36.1%); and identifying as lesbian, gay, bisexual, transgender, intersex, queer/questioning, and asexual plus (LGBTIQA+; 28.2%). Higher levels of distress, substance use, functional impairment, and lower social support were reported by those who were NEET and/or in unstable housing. LGBTIQA+ status was associated with high distress, depressive symptoms, and suicidal ideation. CONCLUSIONS Most participants reported good social support, stable housing, and engagement in work or education. Those deemed vulnerable were likely to experience social exclusion across multiple domains and reported more mental health problems. The co-occurrence of mental ill-health and social exclusion highlights the importance of integrated mental healthcare.
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Affiliation(s)
- K Filia
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia.
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia.
| | - J Menssink
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - C X Gao
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
- Department of Epidemiology and Preventative Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - D Rickwood
- headspace National Youth Mental Health Foundation, Melbourne, VIC, Australia
- Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - M Hamilton
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
| | - S E Hetrick
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Department of Psychological Medicine, The University of Auckland, Auckland, New Zealand
| | - A G Parker
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Brain and Mind Centre, The University of Sydney, Camperdown, NSW, Australia
| | - H Herrman
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - I Hickie
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - S Sharmin
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - P D McGorry
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - S M Cotton
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
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Abstract
This chemistry establishes a method for the synthesis of per- and poly-fluoroaryl acid amides, utilizing nucleophilic aromatic substitution. Traditionally, such amides are constructed in a two-step process, namely, ammonolysis and then N-acylation. Herein, good yields of N-polyfluoroaryl acid amides were achieved in a single step under mild reaction conditions. Key to achieving optimal yields is the use of two equivalents of the nucleophile. In addition, the mechanism of the reaction is discussed which has implications for other related nucleophilic substitutions.
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Affiliation(s)
| | | | | | | | - Jon Day
- Department of Chemistry, Oklahoma State University
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Goh D, House A, Moores AP, Renwick A, Franklin C, Kulendra E, Polak S, Pink J, Triglia M, Neville-Towle J, Hamilton M, Sajik D, Pfeiffer C. Surgical management of superficial digital flexor tendon luxation in dogs: 48 cases (2005-2020). J Small Anim Pract 2021; 63:305-311. [PMID: 34914119 DOI: 10.1111/jsap.13448] [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] [Received: 05/09/2021] [Revised: 09/24/2021] [Accepted: 10/31/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To report the outcome, frequency of complications and potential prognostic factors associated with surgical repair of superficial digital flexor tendon (SDFT) luxation in dogs. MATERIALS AND METHODS Medical records from 10 referral hospitals were reviewed retrospectively for cases of SDFT luxation in dogs that underwent surgical stabilisation. Signalment, clinical presentation, diagnostic imaging, surgical method, type and length of post-operative limb immobilisation, nature of and length of exercise restriction, presence of post-operative complications and outcomes were recorded. Data were summarised descriptively and prognostic risk factors assessed for association with surgical outcome using risk ratios. RESULTS Forty-eight cases were included. A successful surgical outcome was recorded in 35 of 48 (73%) cases. Re-luxation of the SDFT occurred in seven of 48 (15%). Six out of 48 (13%) had a persistent lameness despite a stable non-luxating SDFT. A high frequency of post-operative complications occurred (71%), with the majority resolved medically. The risk of surgical failure was 60% higher (risk ratio 1.6, 95% confidence interval 1.1 to 2.4) where absorbable suture material was used compared to non-absorbable suture material. Surgical failure was more common in cases managed with non-rigid immobilisation post-operatively (57% failure) compared to cases managed with rigid immobilisation (19% failure), although this result was not statistically significant. Limb immobilisation of 6 weeks or longer did not significantly affect surgical outcome, compared to shorter periods of exercise restriction or limb immobilisation. CLINICAL SIGNIFICANCE A good outcome can be expected following surgical stabilisation of SDFT luxation. The use of non-absorbable suture was associated with a more successful surgical outcome.
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Affiliation(s)
- D Goh
- Peninsula Emergency and Referral Hospital, Mornington, 3931, Australia
| | - A House
- Peninsula Emergency and Referral Hospital, Mornington, 3931, Australia
| | - A P Moores
- Anderson Moores Veterinary Specialists, Winchester, SO21 2LL, UK
| | - A Renwick
- Veterinary Referral Hospital, Dandenong, 3175, Australia
| | - C Franklin
- Peninsula Emergency and Referral Hospital, Mornington, 3931, Australia
| | - E Kulendra
- North Downs Specialist Referrals, Bletchingley, RH1 4QP, UK
| | - S Polak
- Centre for Animal Referral and Emergency, Collingwood, 3066, Australia
| | - J Pink
- Willows Veterinary Centre & Referral Service, Solihull, B90 4NH, UK
| | - M Triglia
- Willows Veterinary Centre & Referral Service, Solihull, B90 4NH, UK
| | | | - M Hamilton
- Hamilton Specialist Referrals, High Wycombe, HP12 3SD, UK
| | - D Sajik
- Hamilton Specialist Referrals, High Wycombe, HP12 3SD, UK
| | - C Pfeiffer
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, 3010, Australia
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Simmons MB, Nicholas J, Chinnery G, O'Sullivan S, D'Alfonso S, Bendall S, Cagliarini D, Hamilton M, Gleeson J, Killackey E, Alvarez-Jimenez M. The youth online training and employment system: Study protocol for a randomized controlled trial of an online vocational intervention for young people with mental ill health. Early Interv Psychiatry 2021; 15:1602-1611. [PMID: 33426790 DOI: 10.1111/eip.13100] [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: 06/30/2020] [Revised: 12/03/2020] [Accepted: 12/13/2020] [Indexed: 11/26/2022]
Abstract
AIM People diagnosed with mental disorders experience higher rates of unemployment than those without. Career adaptability, defined as the ability to respond flexibly and make informed career decisions in work and throughout career transitions, is becoming increasingly important as the nature of work changes rapidly. Early vocational intervention may ameliorate poor education and employment outcomes experienced by young people with mental ill-health and promote transferable skills and adaptability. Online-based career support allows for ongoing access throughout different career stages. The current study combines mental health-informed digital career and peer motivation, to create a Youth Online Training and Employment System (YOTES) that supports young people with mental ill-health obtain and remain in education or employment. METHODS This study is an unblinded randomized controlled trial for young people with mental ill-health, aged 16-25, who are seeking vocational support. Participants will be randomized to receive either YOTES, a moderated, online intervention with vocational, social, and peer motivation, or a control intervention, the headspace Digital Work and Study Service. Both groups will have access to in-person career support if seeking employment. The primary outcome will be career adaptability compared between the YOTES and control groups at 6-months post baseline. Secondary outcomes include number of hours worked in the past 7 days, hope, career confidence, psychological distress and health economic outcomes at 6- and 12-months post baseline. CONCLUSION Results will demonstrate whether an online career intervention moderated by career practitioners with peer motivation can result in improved career adaptability in young people with mental ill-health.
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Affiliation(s)
- Magenta B Simmons
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jennifer Nicholas
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Shaunagh O'Sullivan
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Simon D'Alfonso
- School of Computing and Information Systems, The University of Melbourne, Melbourne, Victoria, Australia
| | - Sarah Bendall
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Daniela Cagliarini
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Matthew Hamilton
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - John Gleeson
- Healthy Brain and Mind Research Centre and School of Behavioural and Health Sciences, Australian Catholic University, Victoria, Australia
| | - Eóin Killackey
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Mario Alvarez-Jimenez
- Orygen, Parkville, Victoria, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
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Laselva O, Qureshi Z, Zeng Z, Petrotchenko E, Ramjeesingh M, Hamilton M, Huan L, Borchers C, Pomes R, Young R, Bear C. 634: Identification of binding sites for ivacaftor on CFTR. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02057-9] [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: 10/20/2022]
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39
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Cotton SM, Menssink J, Filia K, Rickwood D, Hickie IB, Hamilton M, Hetrick S, Parker A, Herrman H, McGorry PD, Gao C. The psychometric characteristics of the Kessler Psychological Distress Scale (K6) in help-seeking youth: What do you miss when using it as an outcome measure? Psychiatry Res 2021; 305:114182. [PMID: 34455216 DOI: 10.1016/j.psychres.2021.114182] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 05/31/2021] [Revised: 08/10/2021] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
This is the first study to describe psychometric properties of the Kessler Psychological Distress Scale (K6) in a large cohort of help-seeking young people presenting to primary mental health care services. The aim was to determine whether the K6 was appropriate for monitoring outcomes in such settings. 1067 young people were recruited from Australian headspace services. We examined dimensionality of the K6, measurement invariance, and how the K6 correlated with the the Patient Health Questionnaire-9 (PHQ-9)and the Generalised Anxiety Disorder-7 Scale (GAD-7). Standardised Response Mean (SRM) and Cohen's d effect size (ES) were used to examine 3-month stability of the K6. The best-fitting model was a two-factor model: (i) nervous and restlessness; and (ii) hopeless, worthless, depressed and effort. Measurement non-invariance was observed for sex and age groups. K6 strongly correlated with the PHQ-9 and GAD-7. The K6 was less sensitive to change compared to these other two measures. There was some support for the K6 being a screener for young people presenting to primary care; however, there issues arise with its use as an outcome measure. These issues include measurement non-invariance, concern about the dimensionality and focus of items, and its sensitivity to change.
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Affiliation(s)
- S M Cotton
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia.
| | - J Menssink
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - K Filia
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - D Rickwood
- headspace National Youth Mental Health Foundation Ltd, Melbourne VIC, Australia; Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - I B Hickie
- Brain and Mind, University of Sydney, Camperdown, NSW, Australia
| | - M Hamilton
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - S Hetrick
- Department of Psychological Medicine, The University of Auckland, Auckland, Australia
| | - A Parker
- Orygen, Parkville, Melbourne VIC, Australia; Victoria University, Institute of Health and Sport, Melbourne VIC, Australia
| | - H Herrman
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - P D McGorry
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - C Gao
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne VIC, Australia
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40
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Oliwa A, Hocking C, Hamilton M, McLean J, Cumming S, Ballantyne B, Jampana R, Longman C, Monckton D, Farrugia M. MYOTONIC DYSTROPHY. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.262] [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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41
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Porter B, Turner C, Monckton D, Bowler M, Roberts M, Rogers M, Rose M, Orrell R, Donachie J, Williams D, Hamilton M, Hewamadduma C, Sodhi J, Marini-Bettolo C. MYOTONIC DYSTROPHY. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.253] [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: 10/20/2022]
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42
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Porta C, Motzer R, Ejzykowicz F, Blum S, Hamilton M, May J, Huo S, Kral P, Ivanescu C, Choueiri T, Cella D. 668P Matching-adjusted indirect comparison (MAIC) of health-related quality of life (HRQoL) of nivolumab plus cabozantinib (N+C) vs pembrolizumab plus axitinib (P+A) in previously untreated advanced renal cell carcinoma (aRCC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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43
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George S, Faccone J, Huo S, Zhang Y, Stwalley B, Hamilton M, Le T, Ejzykowicz F. 681P Real-world (RW) clinical outcomes for metastatic renal cell carcinoma (mRCC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.077] [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: 10/20/2022] Open
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44
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Manghat N, Kaneria N, Hamilton M. The "filling defect": an appropriate radiological term or a fluoroscopic hangover? Clin Radiol 2021; 76:706-707. [PMID: 34253336 DOI: 10.1016/j.crad.2021.06.016] [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] [Received: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 11/16/2022]
Affiliation(s)
- N Manghat
- Bristol Royal Infirmary, Bristol, UK.
| | - N Kaneria
- Bristol Royal Infirmary, Bristol, UK
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45
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Rice S, O'Bree B, Wilson M, McEnery C, Lim MH, Hamilton M, Gleeson J, Bendall S, D'Alfonso S, Russon P, Valentine L, Cagliarini D, Howell S, Miles C, Pearson M, Álvarez‐Jiménez M. Development of a graphic medicine-enabled social media-based intervention for youth social anxiety. CLIN PSYCHOL-UK 2021. [DOI: 10.1080/13284207.2021.1923128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Simon Rice
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Bridget O'Bree
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Michael Wilson
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Carla McEnery
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Michelle H. Lim
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, Victoria, Australia
- Iverson Health Innovation Research Institute, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Matthew Hamilton
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - John Gleeson
- School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, Australia
| | - Sarah Bendall
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Simon D'Alfonso
- Orygen, Parkville, Victoria, Australia
- School of Computing and Information Systems, University of Melbourne, Parkville, Victoria, Australia
| | - Penni Russon
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Lee Valentine
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Daniela Cagliarini
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Simmone Howell
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Christopher Miles
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | | | - Mario Álvarez‐Jiménez
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
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46
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Hamilton M, Sivasambu H, Behdinan K, Andrysek J. Evaluating the Dynamic Performance of Interfacial Pressure Sensors at a Simulated Body-Device Interface. Can Prosthet Orthot J 2021; 4:36059. [PMID: 37614935 PMCID: PMC10443500 DOI: 10.33137/cpoj.v4i1.36059] [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] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/08/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Pressure sensing at the body-device interface can help assess the quality of fit and function of assistive devices during physical activities and movement such as walking and running. However, the dynamic performance of various pressure sensor configurations is not well established. OBJECTIVES Two common commercially available thin-film pressure sensors were tested to determine the effects of clinically relevant setup configurations focusing on loading areas, interfacing elements (i.e. 'puck') and calibration methods. METHODOLOGY Testing was performed using a customized universal testing machine to simulate dynamic, mobility relevant loads at the body-device interface. Sensor performance was evaluated by analyzing accuracy and hysteresis. FINDINGS The results suggest that sensor calibration method has a significant effect on sensor performance although the difference is mitigated by using an elastomeric loading puck. Both sensors exhibited similar performance during dynamic testing that agree with accuracy and hysteresis values reported by manufacturers and in previous studies assessing mainly static and quasi-static conditions. CONCLUSION These findings suggest that sensor performance under mobility relevant conditions may be adequately represented via static and quasi-testing testing. This is important since static testing is much easier to apply and reduces the burden on users to verify dynamic performance of sensors prior to clinical application. The authors also recommend using a load puck for dynamic testing conditions to achieve optimal performance.
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Affiliation(s)
- M Hamilton
- Institute of Biomedical Engineering, Faculty of Applied Science and Engineering, University of Toronto, Toronto, Canada
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
| | - H Sivasambu
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
| | - K Behdinan
- Department of Mechanical and Industrial Engineering, Faculty of Applied Science and Engineering, University of Toronto, Toronto, Canada
| | - J Andrysek
- Institute of Biomedical Engineering, Faculty of Applied Science and Engineering, University of Toronto, Toronto, Canada
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
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Kittleson M, Patel J, Patel N, Singer-Englar T, Chang D, Velleca A, Kransdorf E, Hamilton M, Czer L, Ramzy D, Kobashigawa J. Is There Bias in Heart Transplant Selection? J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.783] [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] Open
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48
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Patel J, Kittleson M, Deshpande A, Patel N, Singer-Englar T, Hamilton M, Hage A, Moriguchi J, Czer L, Esmailian F, Kobashigawa J. Outcome of the Development of Early Restrictive Physiology after Heart Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.603] [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: 10/21/2022] Open
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49
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Chang D, Kittleson M, Patel J, Kransdorf E, Hamilton M, Hage A, Nikolova A, Patel N, Singer-Englar T, Czer L, Trento A, Kobashigawa J. Is a Switch to Cyclosporine from Tacrolimus a Risk in Heart Transplant Recipients? J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.412] [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: 11/27/2022] Open
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50
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Hamilton M, Jean D, Giroux V. A53 STUDYING THE ROLE OF ASCL2 IN THE ESOPHAGEAL EPITHELIUM USING ORGANOIDS. J Can Assoc Gastroenterol 2021. [DOI: 10.1093/jcag/gwab002.051] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The esophagus is lined with a stratified squamous epithelium that assure protection against the austere environment found in the esophageal lumen. The maintenance of this epithelium is ensured by a rare population of cells: stem cells. Those cells have increased capacity of self-renewal and multipotency, which is the capacity to give rise to every cell types of a tissue. The marker Krt15 was used to identify the first stem cell population in the esophagus. Krt15+ cells display an extended lifespan and they are radioresistant, multipotent and capable of self-renewal. Moreover, it was observed by RNA sequencing that the expression of the transcription factor ASCL2 is strongly increased in Krt15+ cells compared to Krt15- cells. Interestingly, ASCL2 is necessary to maintain the stemness of Lgr5+ intestinal stem cells. It is also a target of the Wnt/β-catenin pathway. The overall goal of this project is to determine the role of ACSL2 in the maintenance of esophageal stem cells and to identify its binding partners since ASCL2 needs to dimerize to efficiently bind DNA.
Aims
Confirm that esophageal organoids are adapted to study ASCL2 in the esophagus.
Methods
Esophageal organoids were established from esophageal epithelial cells from wildtype mice. Following this, organoids were treated with an inhibitor of the Notch pathway (DAPT) to induce hyperplasia or infected with lentiviruses to invalidate Ascl2 (CRISPR/Cas9 approach).
Results
To validate that Ascl2 plays an important role in esophageal cell proliferation, Notch pathway was inhibited through DAPT treatment in esophageal organoids to induce hyperplasia, which was confirmed by increased number of proliferative cells (Ki-67+). ASCL2 protein expression was also increased in DAPT-treated organoids supporting its role in proliferation and confirming that organoid is a good model to study ASCL2 role in esophageal epithelial cells. In this optic, organoids lines invalidated for Ascl2 (CRISPR/Cas9 approach) were established. Our preliminary results suggest that Ascl2 loss affects cell proliferation and organoid size under normal conditions.
Conclusions
The expression of ASCL2 correlates with hyperplasia which supports its role in esophageal epithelium homeostasis.
Funding Agencies
Canada research chair et NSERC
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Affiliation(s)
- M Hamilton
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - D Jean
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - V Giroux
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
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