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Wood E, Bright J, Hsu K, Goel N, Ross JWG, Hanson A, Teed R, Poulin G, Denning B, Corace K, Chase C, Halpape K, Lim R, Kealey T, Rehm J. Ligne directrice canadienne pour la prise en charge clinique de la consommation d’alcool à risque élevé et du trouble d’utilisation de l’alcool. CMAJ 2024; 196:E303-E321. [PMID: 38467412 PMCID: PMC10927286 DOI: 10.1503/cmaj.230715-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024] Open
Abstract
Contexte: Au Canada, on note que les équipes soignantes et les personnes qui bénéficieraient de soins ciblés connaissent peu les interventions fondées sur des données probantes pour la prise en charge clinique du trouble d’utilisation de l’alcool. Pour combler cette lacune, l’Initiative canadienne de recherche sur l’abus de substances a créé un comité national dans le but d’élaborer une ligne directrice pour la prise en charge clinique de la consommation d’alcool à risque élevé et du trouble lié à la consommation d’alcool. Méthodes: L’élaboration de cette ligne directrice s’est faite selon le processus ADAPTE, et est inspirée par une ligne directrice britanno-colombienne de 2019 pour le trouble lié à la consommation d’alcool. Un comité national de rédaction de la ligne directrice (composé de 36 membres de divers horizons, notamment des universitaires, des médecins, des personnes ayant ou ayant eu des expériences de consommation d’alcool et des personnes s’identifiant comme Autochtones ou Métis) a choisi les thèmes prioritaires, a passé en revue les données probantes et atteint un consensus relatif aux recommandations. Nous avons utilisé l’outil AGREE II (Appraisal of Guidelines for Research and Evaluation Instrument II) et les principes de divulgation des intérêts et de gestion des conflits lors du processus de rédaction des lignes directrices (Principles for Disclosure of Interests and Management of Conflicts in Guidelines) publiés en anglais par le Réseau international des lignes directrices (Guidelines International Network) pour nous assurer que la ligne directrice répondait aux normes internationales de transparence, de qualité élevée et de rigueur méthodologique. Nous avons évalué les recommandations finales à l’aide de l’approche GRADE (Grading of Recommendations Assessment, Development, and Evaluation). Les recommandations ont fait l’objet d’une revue externe par 13 spécialistes et parties prenantes d’ici et de l’étranger. Recommandations: La ligne directrice comprend 15 recommandations qui concernent le dépistage, le diagnostic, la prise en charge du sevrage et le traitement continu, y compris les interventions psychosociales, les pharmacothérapies et les programmes communautaires. Le comité de rédaction de la ligne directrice a reconnu la nécessité d’insister sur la sous-utilisation des interventions qui pourraient être bénéfiques et sur les modes de prescription et autres pratiques d’usage courant qui ne reposent pas sur des données probantes et pourraient aggraver les effets de la consommation d’alcool. Interprétation: La ligne directrice se veut une ressource à l’intention des médecins, des responsables des orientations politiques et des membres des équipes cliniques et autres, de même que des personnes, des familles et des communautés affectées par la consommation d’alcool. Ces recommandations proposent un cadre fondé sur des données probantes pour alléger le lourd fardeau du trouble d’utilisation de l’alcool au Canada et combler les besoins en matière de traitements et de soins.
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Affiliation(s)
- Evan Wood
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont.
| | - Jessica Bright
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Katrina Hsu
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Nirupa Goel
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Josey W G Ross
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Averill Hanson
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Rand Teed
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Ginette Poulin
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Bryany Denning
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Kim Corace
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Corrina Chase
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Katelyn Halpape
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Ronald Lim
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Tim Kealey
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
| | - Jürgen Rehm
- Département de médecine (Wood), Université de la Colombie-Britannique; Centre sur la toxicomanie de la Colombie-Britannique (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, C.-B.; Programme sur les classes de médicaments (Teed), Craven, Sask.; Département de psychiatrie (Poulin), Université du Manitoba; Centre Waypoint de santé mentale (Poulin), Winnipeg, Man.; Programme de lutte contre la consommation problématique de substances toxiques, ministère de la Santé et des Services sociaux, Gouvernement des Territoires du Nord-Ouest (Denning), Yellowknife, T.N.-O.; Centre de santé mentale Royal Ottawa (Corace); Département de psychiatrie (Corace), Université d'Ottawa, Ottawa, Ont.; Régie de la santé des Premières Nations (Chase), Vancouver, C.-B.; École de pharmacie et de nutrition (Halpape), Université de la Saskatchewan, Saskatoon, Sask.; Université de Calgary (Lim), Calgary, Alb.; Société d'assurance Knight Archer (Kealey), Regina, Sask.; Institut de recherche sur les politiques en santé mentale (Rehm), Centre de toxicomanies et de santé mentale; École Dalla Lana de santé publique (Rehm), Université de Toronto, Toronto, Ont
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Kumar VA, Lee J, Liu HL, Allen JW, Filippi CG, Holodny AI, Hsu K, Jain R, McAndrews MP, Peck KK, Shah G, Shimony JS, Singh S, Zeineh M, Tanabe J, Vachha B, Vossough A, Welker K, Whitlow C, Wintermark M, Zaharchuk G, Sair HI. Recommended Resting-State fMRI Acquisition and Preprocessing Steps for Preoperative Mapping of Language and Motor and Visual Areas in Adult and Pediatric Patients with Brain Tumors and Epilepsy. AJNR Am J Neuroradiol 2024; 45:139-148. [PMID: 38164572 DOI: 10.3174/ajnr.a8067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/12/2023] [Indexed: 01/03/2024]
Abstract
Resting-state (rs) fMRI has been shown to be useful for preoperative mapping of functional areas in patients with brain tumors and epilepsy. However, its lack of standardization limits its widespread use and hinders multicenter collaboration. The American Society of Functional Neuroradiology, American Society of Pediatric Neuroradiology, and the American Society of Neuroradiology Functional and Diffusion MR Imaging Study Group recommend specific rs-fMRI acquisition approaches and preprocessing steps that will further support rs-fMRI for future clinical use. A task force with expertise in fMRI from multiple institutions provided recommendations on the rs-fMRI steps needed for mapping of language, motor, and visual areas in adult and pediatric patients with brain tumor and epilepsy. These were based on an extensive literature review and expert consensus.Following rs-fMRI acquisition parameters are recommended: minimum 6-minute acquisition time; scan with eyes open with fixation; obtain rs-fMRI before both task-based fMRI and contrast administration; temporal resolution of ≤2 seconds; scanner field strength of 3T or higher. The following rs-fMRI preprocessing steps and parameters are recommended: motion correction (seed-based correlation analysis [SBC], independent component analysis [ICA]); despiking (SBC); volume censoring (SBC, ICA); nuisance regression of CSF and white matter signals (SBC); head motion regression (SBC, ICA); bandpass filtering (SBC, ICA); and spatial smoothing with a kernel size that is twice the effective voxel size (SBC, ICA).The consensus recommendations put forth for rs-fMRI acquisition and preprocessing steps will aid in standardization of practice and guide rs-fMRI program development across institutions. Standardized rs-fMRI protocols and processing pipelines are essential for multicenter trials and to implement rs-fMRI as part of standard clinical practice.
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Affiliation(s)
- V A Kumar
- From the The University of Texas MD Anderson Cancer Center (V.A.K., J.L., H.-L.L., M.W.), Houston, Texas
| | - J Lee
- From the The University of Texas MD Anderson Cancer Center (V.A.K., J.L., H.-L.L., M.W.), Houston, Texas
| | - H-L Liu
- From the The University of Texas MD Anderson Cancer Center (V.A.K., J.L., H.-L.L., M.W.), Houston, Texas
| | - J W Allen
- Emory University (J.W.A.), Atlanta, Georgia
| | - C G Filippi
- Tufts University (C.G.F.), Boston, Massachusetts
| | - A I Holodny
- Memorial Sloan Kettering Cancer Center (A.I.H., K.K.P.), New York, New York
| | - K Hsu
- New York University (K.H., R.J.), New York, New York
| | - R Jain
- New York University (K.H., R.J.), New York, New York
| | - M P McAndrews
- University of Toronto (M.P.M.), Toronto, Ontario, Canada
| | - K K Peck
- Memorial Sloan Kettering Cancer Center (A.I.H., K.K.P.), New York, New York
| | - G Shah
- University of Michigan (G.S.), Ann Arbor, Michigan
| | - J S Shimony
- Washington University School of Medicine (J.S.S.), St. Louis, Missouri
| | - S Singh
- University of Texas Southwestern Medical Center (S.S.), Dallas, Texas
| | - M Zeineh
- Stanford University (M.Z., G.Z.), Palo Alto, California
| | - J Tanabe
- University of Colorado (J.T.), Aurora, Colorado
| | - B Vachha
- University of Massachusetts (B.V.), Worcester, Massachusetts
| | - A Vossough
- Children's Hospital of Philadelphia, University of Pennsylvania (A.V.), Philadelphia, Pennsylvania
| | - K Welker
- Mayo Clinic (K.W.), Rochester, Minnesota
| | - C Whitlow
- Wake Forest University (C.W.), Winston-Salem, North Carolina
| | - M Wintermark
- From the The University of Texas MD Anderson Cancer Center (V.A.K., J.L., H.-L.L., M.W.), Houston, Texas
| | - G Zaharchuk
- Stanford University (M.Z., G.Z.), Palo Alto, California
| | - H I Sair
- Johns Hopkins University (H.I.S.), Baltimore, Maryland
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Wood E, Bright J, Hsu K, Goel N, Ross JWG, Hanson A, Teed R, Poulin G, Denning B, Corace K, Chase C, Halpape K, Lim R, Kealey T, Rehm J. Canadian guideline for the clinical management of high-risk drinking and alcohol use disorder. CMAJ 2023; 195:E1364-E1379. [PMID: 37844924 PMCID: PMC10581718 DOI: 10.1503/cmaj.230715] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND In Canada, low awareness of evidence-based interventions for the clinical management of alcohol use disorder exists among health care providers and people who could benefit from care. To address this gap, the Canadian Research Initiative in Substance Misuse convened a national committee to develop a guideline for the clinical management of high-risk drinking and alcohol use disorder. METHODS Development of this guideline followed the ADAPTE process, building upon the 2019 British Columbia provincial guideline for alcohol use disorder. A national guideline committee (consisting of 36 members with diverse expertise, including academics, clinicians, people with lived and living experiences of alcohol use, and people who self-identified as Indigenous or Métis) selected priority topics, reviewed evidence and reached consensus on the recommendations. We used the Appraisal of Guidelines for Research and Evaluation Instrument (AGREE II) and the Guidelines International Network's Principles for Disclosure of Interests and Management of Conflicts to ensure the guideline met international standards for transparency, high quality and methodological rigour. We rated the final recommendations using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) tool; the recommendations underwent external review by 13 national and international experts and stakeholders. RECOMMENDATIONS The guideline includes 15 recommendations that cover screening, diagnosis, withdrawal management and ongoing treatment, including psychosocial treatment interventions, pharmacotherapies and community-based programs. The guideline committee identified a need to emphasize both underused interventions that may be beneficial and common prescribing and other practice patterns that are not evidence based and that may potentially worsen alcohol use outcomes. INTERPRETATION The guideline is intended to be a resource for physicians, policymakers and other clinical and nonclinical personnel, as well as individuals, families and communities affected by alcohol use. The recommendations seek to provide a framework for addressing a large burden of unmet treatment and care needs for alcohol use disorder within Canada in an evidence-based manner.
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Affiliation(s)
- Evan Wood
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont.
| | - Jessica Bright
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Katrina Hsu
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Nirupa Goel
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Josey W G Ross
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Averill Hanson
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Rand Teed
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Ginette Poulin
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Bryany Denning
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Kim Corace
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Corrina Chase
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Katelyn Halpape
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Ronald Lim
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Tim Kealey
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
| | - Jürgen Rehm
- Department of Medicine (Wood), University of British Columbia; British Columbia Centre on Substance Use (Wood, Bright, Hsu, Goel, Ross, Hanson, Chase), Vancouver, BC; Drug Class Program (Teed), Craven, Saskatchewan; Department of Psychiatry (Poulin), University of Manitoba; Waypoint Centre for Mental Health Care (Poulin), Winnipeg, Man.; Problematic Substance Use, Department of Health and Social Services, Government of the Northwest Territories (Denning), Yellowknife, NWT; The Royal Ottawa Mental Health Centre (Corace); Department of Psychiatry (Corace), University of Ottawa, Ottawa, Ont.; First Nations Health Authority (Chase), Vancouver, BC; College of Pharmacy and Nutrition (Halpape), University of Saskatchewan, Saskatoon, Sask.; University of Calgary (Lim), Calgary, Alta.; Knight Archer Insurance (Kealey), Regina, Sask.; Institute for Mental Health Policy Research (Rehm), Centre for Addiction and Mental Health; Dalla Lana School of Public Health (Rehm), University of Toronto, Toronto, Ont
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Rawat A, Pun A, Ashish KC, Tamang IK, Karlström J, Hsu K, Rasanathan K. The contribution of community health systems to resilience: Case study of the response to the 2015 earthquake in Nepal. J Glob Health 2023; 13:04048. [PMID: 37166272 PMCID: PMC10173893 DOI: 10.7189/jogh.13.04048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
Methods Key informant interviews and focus group discussions were utilised. Participants included FCHVs, primary healthcare workers, community leaders and mothers, district health managers, representatives from the Ministry of Health and Population, multilateral health organisations, bilateral development partners, local non-governmental organisations, community-based organisations, and international non-governmental organisations. We used thematic content analysis to identify emerging themes. Results Seventy-seven people participated in the study in September 2016 from communities (n = 53, 69%), districts (n = 8, 10%), and national levels (n = 16, 21%). Strong coordination, international and national support, and community engagement and participation were reported as successes of the earthquake response. Challenges included a lack of preparedness and supplies, a lack of earthquake-resistant infrastructure, and the centralisation of the response. FCHVs continued to work, despite being victims of the earthquake themselves. Facilitators of the continuation of the FCHVs' duties included their strong ties with the communities and facilities, international support, and the ability to mobilise existing community resources. Barriers included fear, communities' attitudes, high workloads, large geographic distances, and difficult geography. Participants identified the importance of having strong, connected, and supported communities, adaptable funding and policies, and decentralised decision-making within strong health systems. Conclusions Building resilience in community-based health systems must start with strong communities that are prepared, trained, equipped, and empowered. Health systems must be decentralised and adaptable, with strong coordination and leadership. Capable community health workers such as FCHVs were an important part of building resilience during the earthquake. These lessons can assist countries in strengthening decentralised health systems to better respond to a multitude of shocks, while still providing essential health services for communities.
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Affiliation(s)
- Angeli Rawat
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Asha Pun
- UNICEF Nepal Country Office, Kathmandu, Nepal
| | - K C Ashish
- UNICEF Nepal Country Office, Kathmandu, Nepal
- Department of Women's and Children's Health, Uppsala University, Sweden
| | | | - Jonas Karlström
- SingHealth Duke-NUS Global Health Institute, Singapore
- UNICEF, Health Section, New York, New York, USA
| | - Katrina Hsu
- Providence Health Care, Vancouver, British Columbia, Canada
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Rawat A, Karlstrom J, Ameha A, Oulare M, Omer MD, Desta HH, Bahuguna S, Hsu K, Miller NP, Bati GT, Rasanathan K. The contribution of community health systems to resilience: Case study of the response to the drought in Ethiopia. J Glob Health 2022; 12:14001. [PMID: 36273279 PMCID: PMC9588157 DOI: 10.7189/jogh.12.14001] [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] [Indexed: 11/16/2022] Open
Abstract
Background Ethiopia’s exposure to the El Niño drought (2015-2016) resulted in high malnutrition, internally displaced people, and epidemics of communicable diseases, all of which strained the health system. The drought was especially challenging for mothers and children. We aimed to identify salient factors that can improve health system resilience by exploring the successes and challenges experienced by a community-based health system during the drought response. Methods We collected data via key informant interviews and focus group discussions to capture diverse perspectives across the health system (eg, international, national, district, facility, and community perspectives). Data were collected from communities in drought-affected regions of: 1) Somali, Sitti Zone, 2) Hawassa, Southern Nations, Nationalities, and Peoples’ Region (SNNPR), and 3) Tigray, Eastern Zone. Data were analysed using a deductive-inductive approach using thematic content analysis applied to a conceptual framework. Results A total of 94 participants were included (71 from the communities and 23 from other levels). Key themes included the importance of: 1) organized community groups linked to the health system, 2) an effective community health workforce within strong health systems, 3) adaptable human resource structures and service delivery models, 4) training and preparedness, and 5) strong government leadership with decentralized decision making. Conclusions The results of this study provide insights from across the health system into the successes and challenges of building resilience in community-based health systems in Ethiopia during the drought. As climate change exacerbates extreme weather events, further research is needed to understand the determinants of building resilience from a variety of shocks in multiple contexts, especially focusing on harnessing the power of communities as reservoirs of resilience.
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Affiliation(s)
- Angeli Rawat
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | | | - Agazi Ameha
- UNICEF Ethiopia Country Office, Addis Ababa, Ethiopia
| | | | | | | | | | | | | | - Gemu Tiru Bati
- Federal Ministry of Health of Ethiopia, Addis Ababa, Ethiopia
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Javle MM, Oh DY, Ikeda M, Yong WP, Hsu K, Lindmark B, McIntyre N, Firth C. Varlitinib plus capecitabine in second-line advanced biliary tract cancer: a randomized, phase II study (TreeTopp). ESMO Open 2021; 7:100314. [PMID: 34922298 PMCID: PMC8685988 DOI: 10.1016/j.esmoop.2021.100314] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 12/30/2022] Open
Abstract
Background Patients with advanced biliary tract cancer who progress on first-line therapy have limited treatment options. The TreeTopp study assessed varlitinib, a reversible small molecule pan-human epidermal growth factor receptor inhibitor, plus capecitabine in previously treated advanced biliary tract cancer. Patients and methods This global, double-blind, randomized, placebo-controlled phase II study enrolled patients with confirmed unresectable or metastatic biliary tract cancer and disease progression after one prior line of gemcitabine-containing chemotherapy. Patients received oral varlitinib 300 mg or placebo twice daily (b.i.d.) for 21 days, plus oral capecitabine 1000 mg/m2 b.i.d. on days 1-14, in 21-day treatment cycles. Co-primary endpoints were objective response rate and progression-free survival (PFS) according to RECIST v1.1 by Independent Central Review. Results In total, 127 patients received varlitinib plus capecitabine (n = 64) or placebo plus capecitabine (n = 63). The objective response rate was 9.4% with varlitinib plus capecitabine versus 4.8% with capecitabine alone (odds ratio 2.28; P = 0.42). Median PFS was 2.83 versus 2.79 months [hazard ratio (HR), 0.90; 95% confidence interval (CI), 0.60-1.37; P = 0.63] and overall survival was 7.8 versus 7.5 months (HR, 1.11; 95% CI, 0.69-1.79; P = 0.66), respectively. In a subgroup analysis, the addition of varlitinib appeared to provide a PFS benefit in female patients (median, 4.1 versus 2.8 months; HR, 0.59; 95% CI, 0.28-1.23) and those with gallbladder cancer (median, 2.9 versus 1.6 months; HR, 0.55; 95% CI, 0.26-1.19). Grade ≥3 treatment-emergent adverse events were reported in 65.6% of patients receiving varlitinib plus capecitabine versus 58.7% of those receiving capecitabine alone. Conclusions In patients with advanced biliary tract cancer, second-line treatment with varlitinib plus capecitabine was well tolerated but did not improve efficacy versus capecitabine alone. A PFS benefit was suggested in female patients and those with gallbladder cancer. In advanced biliary tract cancer, second-line varlitinib plus capecitabine did not improve efficacy versus capecitabine alone. Varlitinib was well tolerated in combination with capecitabine. Subgroup analyses suggested varlitinib plus capecitabine may benefit female patients and those with gallbladder cancer.
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Affiliation(s)
- M M Javle
- Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA.
| | - D-Y Oh
- Division of Medical Oncology, Department of Internal Medicine, Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Integrated Major in Innovative Medical Science, Seoul National University Graduate School, Seoul, South Korea
| | - M Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - W-P Yong
- Department of Haematology-Oncology, National University Cancer Institute, Cancer Science Institute, Singapore, Singapore
| | - K Hsu
- ASLAN Pharmaceuticals, Singapore, Singapore
| | - B Lindmark
- ASLAN Pharmaceuticals, Singapore, Singapore
| | - N McIntyre
- ASLAN Pharmaceuticals, Singapore, Singapore
| | - C Firth
- ASLAN Pharmaceuticals, Singapore, Singapore
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Esenwa C, Cheng NT, Lipsitz E, Hsu K, Zampolin R, Gersten A, Antoniello D, Soetanto A, Kirchoff K, Liberman A, Mabie P, Nisar T, Rahimian D, Brook A, Lee SK, Haranhalli N, Altschul D, Labovitz D. COVID-19-Associated Carotid Atherothrombosis and Stroke. AJNR Am J Neuroradiol 2020; 41:1993-1995. [PMID: 32819896 DOI: 10.3174/ajnr.a6752] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 06/26/2020] [Indexed: 12/11/2022]
Abstract
We present a radiology-pathology case series of 3 patients with coronavirus disease 2019 (COVID-19) with acute ischemic stroke due to fulminant carotid thrombosis overlying mild atherosclerotic plaque and propose a novel stroke mechanism: COVID-associated carotid atherothrombosis.
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Affiliation(s)
- C Esenwa
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - N T Cheng
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - E Lipsitz
- Cardiothoracic and Vascular Surgery (E.L.), Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - K Hsu
- Radiology (K.H., R.Z., A.B., S.-K.L.)
| | | | | | - D Antoniello
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - A Soetanto
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - K Kirchoff
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - A Liberman
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - P Mabie
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - T Nisar
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - D Rahimian
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
| | - A Brook
- Radiology (K.H., R.Z., A.B., S.-K.L.)
| | - S-K Lee
- Radiology (K.H., R.Z., A.B., S.-K.L.)
| | - N Haranhalli
- Neurosurgery (N.H., D.A,), Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - D Altschul
- Neurosurgery (N.H., D.A,), Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, New York
| | - D Labovitz
- From the Department of Neurology (C.E.E., N.T.C., D.A., A.S., K.K., A.L., P.M., T.N., D.R., D.L.)
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Kramer B, Middlemiss S, Hsu K, McCowage G. Targeting tumour associated antigens expressed in osteosarcoma and ewing's sarcoma with CAR-T cells. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Goldman-Yassen AE, Chen KX, Edasery D, Hsu K, Ye K, Lipton ML. Near-Term Decrease in Brain Volume following Mild Traumatic Injury Is Detectible in the Context of Preinjury Volumetric Stability: Neurobiologic Insights from Analysis of Historical Imaging Examinations. AJNR Am J Neuroradiol 2018; 39:1821-1826. [PMID: 30190258 DOI: 10.3174/ajnr.a5769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/29/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND PURPOSE Neurodegeneration after mild traumatic brain injury may manifest as decreasing regional brain volume that evolves from months to years following mild traumatic brain injury and is associated with worse clinical outcomes. We hypothesized that quantitative brain volume derived from CT of the head, performed for clinical indications during routine care, would change with time and provide insights into the putative neuroinflammatory response to mild traumatic brain injury. MATERIALS AND METHODS We searched the electronic medical record of our institution for NCCTs of the head performed in patients with mild traumatic brain injury and included those who also underwent NCCTs of the head 1 month to 1 year before and after mild traumatic brain injury for an indication unrelated to trauma. Controls underwent 3 sequential NCCTs of the head with indications unrelated to trauma. The whole-brain and intracranial volume groups were computed using ITK-SNAP. Brain volumes normalized to intracranial volumes were compared across time points using the Wilcoxon signed-rank test. RESULTS We identified 48 patients from 2005 to 2015 who underwent NCCTs of the head in the emergency department for mild traumatic brain injury and had NCCTs of the head performed both before and after mild traumatic brain injury. Median normalized brain volumes significantly decreased on the follow-up study post-mild traumatic brain injury (0.86 versus 0.84, P < .001) and were similar compared with pre-mild traumatic brain injury studies (0.87 versus 0.86, P = .927). There was no significant difference between normalized brain volumes in the 48 controls. CONCLUSIONS A decrease in brain volume following mild traumatic brain injury is detectable on CT and is not seen in similar patients with non-mild traumatic brain injury during a similar timeframe. Given the stability of brain volume before mild traumatic brain injury, CT volume loss may represent the subtle effects of neurodegeneration.
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Affiliation(s)
- A E Goldman-Yassen
- From the Department of Radiology (A.E.G.-Y., K.X.C., D.E., K.H.), Montefiore Medical Center, Bronx, New York
| | - K X Chen
- From the Department of Radiology (A.E.G.-Y., K.X.C., D.E., K.H.), Montefiore Medical Center, Bronx, New York
| | - D Edasery
- From the Department of Radiology (A.E.G.-Y., K.X.C., D.E., K.H.), Montefiore Medical Center, Bronx, New York
| | - K Hsu
- From the Department of Radiology (A.E.G.-Y., K.X.C., D.E., K.H.), Montefiore Medical Center, Bronx, New York
| | - K Ye
- Department of Epidemiology and Population Health (K.Y.), Albert Einstein College of Medicine, Bronx, New York
| | - M L Lipton
- Gruss Magnetic Resonance Research Center Departments of Radiology, Psychiatry and Behavioral Sciences and Dominick P. Purpura Department of Neuroscience (M.L.L.), Albert Einstein College of Medicine, Bronx, New York.
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Hsu K, Kuo MS, Yao CC, Cheng HC, Lin HJ, Chan YS, Lin M. The MNS glycophorin variant GP.Mur affects differential erythroid expression of Rh/RhAG transcripts. Vox Sang 2017; 112:671-677. [PMID: 28836328 DOI: 10.1111/vox.12555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 06/10/2017] [Accepted: 06/26/2017] [Indexed: 01/24/2023]
Abstract
BACKGROUND The band 3 macrocomplex (also known as the ankyrin-associated complex) on the red cell membrane comprises two interacting subcomplexes: a band 3/glycophorin A subcomplex, and a Rh/RhAG subcomplex. Glycophorin B (GPB) is a component of the Rh/RhAG subcomplex that is also structurally associated with glycophorin A (GPA). Expression of glycophorin B-A-B hybrid GP.Mur enhances band 3 expression and is associated with lower levels of Rh-associated glycoprotein (RhAG) and Rh polypeptides. The goal of this study was to determine whether GP.Mur influenced erythroid Rh/RhAG expression at the transcript level. MATERIALS AND METHODS GP.Mur was serologically determined in healthy participants from Taitung County, Taiwan. RNA was extracted from the reticulocyte-enriched fraction of peripheral blood, followed by reverse transcription and quantitative PCR for RhAG, RhD and RhCcEe. RESULTS Quantification by real-time PCR revealed significantly fewer RhAG and RhCcEe transcripts in the reticulocytes from subjects with homozygous GYP*Mur. Independent from GYP.Mur, both RhAG and RhD transcript levels were threefold or higher than that of RhCcEe. Also, in GYP.Mur and the control samples alike, direct quantitative associations were observed between the transcript levels of RhAG and RhD, but not between that of RhAG and RhCcEe. CONCLUSION Erythroid RhD and RhCcEe were differentially expressed at the transcript levels, which could be related to their different degrees of interaction or sensitivity to RhAG. Further, the reduction or absence of glycophorin B in GYP.Mur erythroid cells affected transcript expressions of RhAG and RhCcEe. Thus, GPB and GP.Mur differentially influenced Rh/RhAG expressions prior to protein translation.
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Affiliation(s)
- K Hsu
- Transfusion Medicine Laboratory, Mackay Memorial Hospital, Tamsui, Taiwan
| | - M-S Kuo
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taitung, Taiwan
| | - C-C Yao
- Transfusion Medicine Laboratory, Mackay Memorial Hospital, Tamsui, Taiwan
| | - H-C Cheng
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taitung, Taiwan
| | - H-J Lin
- Transfusion Medicine Laboratory, Mackay Memorial Hospital, Tamsui, Taiwan
| | - Y-S Chan
- Mackay Memorial Hospital Blood Bank, Taipei, Taiwan
| | - M Lin
- Transfusion Medicine Laboratory, Mackay Memorial Hospital, Tamsui, Taiwan
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Shomali M, Cheng J, Koundinya M, Weinstein M, Malkova N, Sun F, Hebert A, Cindachao M, Hoffman D, McManus J, Levit M, Pollard J, Vincent S, Besret L, Adrian F, Winter C, El-Ahmad Y, Halley F, Hsu K, Lager J, Garcia-Echeverria C, Bouaboula M. Abstract P3-04-05: Identification of SAR439859, an orally bioavailable selective estrogen receptor degrader (SERD) that has strong antitumor activity in wild-type and mutant ER+ breast cancer models. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-04-05] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Estrogen receptor positive (ER+) breast cancer accounts for 70% of all breast cancers and is primarily treated with endocrine therapy. Approximately 40% of patients on endocrine therapy will become resistant via a number of mechanisms. There is evidence that in many cases ER continues to play a central role, including mutations in ER leading to a constitutively active receptor. Estrogen receptor degraders like fulvestrant are effective in shutting down ER signaling; however, poor pharmaceutical properties limit fulvestrant clinical activity and prevent it from achieving maximum receptor blockade.
We describe the discovery of SAR439859, a novel, orally bioavailable SERD that is a potent antagonist and degrader of ER both in vitro and in vivo. SAR439859 has robust activity in multiple ER+ breast cancer cell lines including cells that are resistant to tamoxifen as well as cell lines harboring ER mutants. Across a large panel of ER+ cells, SAR439859 demonstrated broad and superior ER degradation activity than most SERDs undergoing clinical testing. This leads to a profound inhibition of ER signaling, better inhibition of cell growth and results in improved in vivo efficacy. SAR439859 demonstrated tumor regression in all ER+ BC models including MCF7-ESR1 mutant-Y537S model, as well as patient-derived xenograft model that is resistant to endocrine therapies. Furthermore, SAR439859 displays limited cross-resistance with other class of SERDs.
Taken together, these results suggest that SAR439859 would be of therapeutic benefit in metastatic BC setting for patients harboring wild type or mutant ER. SAR439859 is being advanced toward the clinic.
Citation Format: Shomali M, Cheng J, Koundinya M, Weinstein M, Malkova N, Sun F, Hebert A, Cindachao M, Hoffman D, McManus J, Levit M, Pollard J, Vincent S, Besret L, Adrian F, Winter C, El-Ahmad Y, Halley F, Hsu K, Lager J, Garcia-Echeverria C, Bouaboula M. Identification of SAR439859, an orally bioavailable selective estrogen receptor degrader (SERD) that has strong antitumor activity in wild-type and mutant ER+ breast cancer models [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P3-04-05.
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Affiliation(s)
- M Shomali
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J Cheng
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Koundinya
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Weinstein
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - N Malkova
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - F Sun
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - A Hebert
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Cindachao
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - D Hoffman
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J McManus
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - M Levit
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J Pollard
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - S Vincent
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - L Besret
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - F Adrian
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - C Winter
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - Y El-Ahmad
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - F Halley
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - K Hsu
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | - J Lager
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
| | | | - M Bouaboula
- Sanofi, Cambridge, MA; Sanofi, Vitry-Sur-Seine, France
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McCain A, Hennessy R, Hsu K. Subsequent vertebral compression fractures during the year after vertebral augmentation using an expandable implant. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.645] [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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Chiu TW, Liu YJ, Chang HC, Lee YH, Lee JC, Hsu K, Wang CW, Yang JM, Hsu HH, Juan CJ. Evaluating Instantaneous Perfusion Responses of Parotid Glands to Gustatory Stimulation Using High-Temporal-Resolution Echo-Planar Diffusion-Weighted Imaging. AJNR Am J Neuroradiol 2016; 37:1909-1915. [PMID: 27339952 DOI: 10.3174/ajnr.a4852] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 04/03/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Parotid glands secrete and empty saliva into the oral cavity rapidly after gustatory stimulation. However, the role of the temporal resolution of DWI in investigating parotid gland function remains uncertain. Our aim was to design a high-temporal-resolution echo-planar DWI pulse sequence and to evaluate the instantaneous MR perfusion responses of the parotid glands to gustatory stimulation. MATERIALS AND METHODS This prospective study enrolled 21 healthy volunteers (M/F = 2:1; mean age, 45.2 ± 12.9 years). All participants underwent echo-planar DWI (total scan time, 304 seconds; temporal resolution, 4 s/scan) on a 1.5T MR imaging scanner. T2WI (b = 0 s/mm2) and DWI (b = 200 s/mm2) were qualitatively assessed. Signal intensity of the parotid glands on T2WI, DWI, and ADC was quantitatively analyzed. One-way ANOVA with post hoc group comparisons with Bonferroni correction was used for statistical analysis. P < .05 was statistically significant. RESULTS Almost perfect interobserver agreement was achieved (κ ≥ 0.656). The parotid glands had magnetic susceptibility artifacts in 14.3% (3 of 21) of volunteers during swallowing on DWI but were free from perceptible artifacts at the baseline and at the end of scans on all images. Increased ADC and reduced signal intensity of the parotid glands on T2WI and DWI occurred immediately after oral administration of lemon juice. Maximal signal change of ADC (24.8% ± 10.8%) was significantly higher than that of T2WI (-10.1% ± 5.2%, P < .001). The recovery ratio of ADC (100.71% ± 42.34%) was also significantly higher than that of T2WI (22.36% ± 15.54%, P < .001). CONCLUSIONS Instantaneous parotid perfusion responses to gustatory stimulation can be quantified by ADC by using high-temporal-resolution echo-planar DWI.
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Affiliation(s)
- T-W Chiu
- From the Departments of Radiology (T.-W.C., C.-W.W., H.-H.H., C.-J.J.)
- Department of Medicine (T.-W.C.), Taipei Medical University, Taipei, Taiwan
| | - Y-J Liu
- Department of Medicine (T.-W.C.), Taipei Medical University, Taipei, Taiwan
| | - H-C Chang
- Department of Diagnostic Radiology (H.-C.C.), The University of Hong Kong, Hong Kong
| | - Y-H Lee
- Department of Medicine (T.-W.C.), Taipei Medical University, Taipei, Taiwan
| | - J-C Lee
- Department of Otolaryngology-Head and Neck Surgery (J.-C.L.), Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department of Biological Science and Technology (J.-C.L., J.-M.Y.), Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan
| | - K Hsu
- Dentistry (K.H.), National Defense Medical Center, Taipei, Taiwan
| | - C-W Wang
- From the Departments of Radiology (T.-W.C., C.-W.W., H.-H.H., C.-J.J.)
- Department of Radiology (C.-W.W., H.-H.H., C.-J.J.), Tri-Service General Hospital, Taipei, Taiwan
| | - J-M Yang
- Department of Biological Science and Technology (J.-C.L., J.-M.Y.), Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan
| | - H-H Hsu
- From the Departments of Radiology (T.-W.C., C.-W.W., H.-H.H., C.-J.J.)
- Department of Radiology (C.-W.W., H.-H.H., C.-J.J.), Tri-Service General Hospital, Taipei, Taiwan
| | - C-J Juan
- From the Departments of Radiology (T.-W.C., C.-W.W., H.-H.H., C.-J.J.)
- Department of Radiology (C.-W.W., H.-H.H., C.-J.J.), Tri-Service General Hospital, Taipei, Taiwan
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Wong S, Hsu K, Mccarroll J, Geczy C, Tedla N. S100A8 inhalation prolongs survival in murine orthotopic lung cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61219-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Thinnes CC, Tumber A, Yapp C, Scozzafava G, Yeh T, Chan MC, Tran TA, Hsu K, Tarhonskaya H, Walport LJ, Wilkins SE, Martinez ED, Müller S, Pugh CW, Ratcliffe PJ, Brennan PE, Kawamura A, Schofield CJ. Betti reaction enables efficient synthesis of 8-hydroxyquinoline inhibitors of 2-oxoglutarate oxygenases. Chem Commun (Camb) 2015; 51:15458-61. [PMID: 26345662 DOI: 10.1039/c5cc06095h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2024]
Abstract
There is interest in developing potent, selective, and cell-permeable inhibitors of human ferrous iron and 2-oxoglutarate (2OG) oxygenases for use in functional and target validation studies. The 3-component Betti reaction enables efficient one-step C-7 functionalisation of modified 8-hydroxyquinolines (8HQs) to produce cell-active inhibitors of KDM4 histone demethylases and other 2OG oxygenases; the work exemplifies how a template-based metallo-enzyme inhibitor approach can be used to give biologically active compounds.
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Affiliation(s)
- C C Thinnes
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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Hsu K, Yao CC, Lin YC, Chang CL, Lee TY. Dissecting alternative splicing in the formation of Miltenberger glycophorin subtype III (GYP.Mur). Vox Sang 2015; 108:403-9. [PMID: 25753520 DOI: 10.1111/vox.12236] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 11/14/2014] [Accepted: 11/18/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Miltenberger subtype III (Mi.III, GP.Mur) is one of the most important red cell phenotypes in the fields of transfusion in South-East Asia. GP.Mur is believed to evolve from homologous gene recombination events between glycophorin A (GYPA) and glycophorin B (GYPB). GYP.Mur differs from GYPB in only seven nucleotides dispersed near the region of 3' exon 3 of GYP.Mur. The goal of this study was to dissect how these nucleotide variants affected splicing of exon 3. MATERIALS AND METHODS We first designed two minigene constructs: one containing GYP.Mur from exon 2 to exon 4 and the other containing GYPB in the same region. To test how these nucleotide variations between GYP.Mur and GYPB affected the splicing, a repertoire of the GYP.Mur-like minigene constructs with different point mutations were created. These minigene variants were evaluated for their abilities to induce splicing of exon 3 using a heterologous expression system. RESULTS (1) GYP.Mur minigene expressed exons 2, 3 and 4, whereas GYPB minigene expressed only exon 2 and exon 4. (2) The single nucleotide alteration at the position of the 5' splice site of glycophorin intron 3 reversed the splicing decision. (3) The nucleotide variations between GYP.Mur and GYPB other than that at the 5' splice site showed very little or no effect on splicing of exon 3. CONCLUSION Splicing of the glycophorin B-A-B hybrids (GYP.Mur and GYP.BUN) and unsplicing of GYPB follow the GU-AG rule strictly.
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Affiliation(s)
- K Hsu
- Mackay Memorial Hospital Transfusion Medicine Laboratory & Blood Bank, Tamsui, Taiwan
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Liao P, Chiou H, Chen C, Hsu K. 983: Hypermethylation biomarkers associated with inorganic arsenic metabolism are predictors to the occurrence of internal organ cancers among arseniasis residents. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50872-6] [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]
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Abstract
The S100 protein family consists of 24 members functionally distributed into three main subgroups: those that only exert intracellular regulatory effects, those with intracellular and extracellular functions and those which mainly exert extracellular regulatory effects. S100 proteins are only expressed in vertebrates and show cell-specific expression patterns. In some instances, a particular S100 protein can be induced in pathological circumstances in a cell type that does not express it in normal physiological conditions. Within cells, S100 proteins are involved in aspects of regulation of proliferation, differentiation, apoptosis, Ca2+ homeostasis, energy metabolism, inflammation and migration/invasion through interactions with a variety of target proteins including enzymes, cytoskeletal subunits, receptors, transcription factors and nucleic acids. Some S100 proteins are secreted or released and regulate cell functions in an autocrine and paracrine manner via activation of surface receptors (e.g. the receptor for advanced glycation end-products and toll-like receptor 4), G-protein-coupled receptors, scavenger receptors, or heparan sulfate proteoglycans and N-glycans. Extracellular S100A4 and S100B also interact with epidermal growth factor and basic fibroblast growth factor, respectively, thereby enhancing the activity of the corresponding receptors. Thus, extracellular S100 proteins exert regulatory activities on monocytes/macrophages/microglia, neutrophils, lymphocytes, mast cells, articular chondrocytes, endothelial and vascular smooth muscle cells, neurons, astrocytes, Schwann cells, epithelial cells, myoblasts and cardiomyocytes, thereby participating in innate and adaptive immune responses, cell migration and chemotaxis, tissue development and repair, and leukocyte and tumor cell invasion.
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Affiliation(s)
- R Donato
- Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Via del Giochetto, 06122 Perugia, Italy.
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Azeredo BP, Sadhu J, Ma J, Jacobs K, Kim J, Lee K, Eraker JH, Li X, Sinha S, Fang N, Ferreira P, Hsu K. Silicon nanowires with controlled sidewall profile and roughness fabricated by thin-film dewetting and metal-assisted chemical etching. Nanotechnology 2013; 24:225305. [PMID: 23644697 DOI: 10.1088/0957-4484/24/22/225305] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This paper presents a non-lithographic approach to generate wafer-scale single crystal silicon nanowires (SiNWs) with controlled sidewall profile and surface morphology. The approach begins with silver (Ag) thin-film thermal dewetting, gold (Au) deposition and lift-off to generate a large-scale Au mesh on Si substrates. This is followed by metal-assisted chemical etching (MacEtch), where the Au mesh serves as a catalyst to produce arrays of smooth Si nanowires with tunable taper up to 13°. The mean diameter of the thus fabricated SiNWs can be controlled to range from 62 to 300 nm with standard deviations as small as 13.6 nm, and the areal coverage of the wire arrays can be up to 46%. Control of the mean wire diameter is achieved by controlling the pore diameter of the metallic mesh which is, in turn, controlled by adjusting the initial thin-film thickness and deposition rate. To control the wire surface morphology, a post-fabrication roughening step is added to the approach. This step uses Au nanoparticles and slow-rate MacEtch to produce rms surface roughness up to 3.6 nm.
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Affiliation(s)
- B P Azeredo
- Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, 1206West Green Street, Urbana, IL 61801, USA
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Ghossoub MG, Valavala KV, Seong M, Azeredo B, Hsu K, Sadhu JS, Singh PK, Sinha S. Spectral phonon scattering from sub-10 nm surface roughness wavelengths in metal-assisted chemically etched Si nanowires. Nano Lett 2013; 13:1564-1571. [PMID: 23464810 DOI: 10.1021/nl3047392] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Frequency dependence in phonon surface scattering is a debated topic in fundamental phonon physics. Recent experiments and theory suggest such a phenomenon, but an independent agreement between the two remains elusive. We report low-temperature dependence of thermal conductivity in silicon nanowires fabricated using a two-step, metal-assisted chemical etch. By reducing etch rates down to 0.5 nm/s from the typical >100 nm/s, we report controllable roughening of nanowire surfaces and selectively focus on moderate roughness scales rather than the extreme scales investigated previously. This critically enables direct comparison with perturbation-based spectral scattering theory. Using experimentally characterized surface roughness, we show that a multiple scattering theory provides excellent agreement and explanation of the observed low-temperature dependence of rough surface nanowires. The theory does not employ any fitting parameters. A 5-10 nm roughness correlation length is typical in metal-assisted chemical etching and resonantly scatters dominant phonons in silicon, leading to the observed ~T(1.6-2.4) behavior. Our work provides fundamental and quantitative insight into spectral phonon scattering from rough surfaces. This advances applications of nanowires in thermoelectric energy conversion.
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Affiliation(s)
- M G Ghossoub
- Department of Mechanical Science & Engineering, University of Illinois, Urbana, Illinois 61801, United States
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Petersdorf EW, Malkki M, Hsu K, Bardy P, Cesbron A, Dickinson A, Dubois V, Fleischhauer K, Kawase T, Madrigal A, Morishima Y, Shaw B, Spellman S, Spierings E, Stern M, Tiercy JM, Velardi A, Gooley T. 16th IHIW: international histocompatibility working group in hematopoietic cell transplantation. Int J Immunogenet 2012; 40:2-10. [PMID: 23279968 DOI: 10.1111/iji.12022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 10/22/2012] [Accepted: 10/23/2012] [Indexed: 11/28/2022]
Abstract
The International Histocompatibility Working Group is a collaborative international effort to understand the HLA and non-HLA genetics of the transplantation barrier. The Working Group is comprised of experts in the fields of histocompatibility and immunogenetics, hematopoietic cell transplantation and outcomes research. Data for 25 855 unrelated donor transplants were submitted in support of research studies for the 16th International Histocompatibility Workshop. Active investigation is in progress in seven key areas: the impact of HLA matching, role of race and ethnicity, identification of permissible HLA mismatches, haplotype-associated determinants, minor histocompatibility antigens, immune response genes and KIR genetics. New hypotheses for the 16th workshop were developed for immunogenetic studies in cord blood and haploidentical-related donor transplantation.
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Affiliation(s)
- E W Petersdorf
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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Chang Y, Hsu K, Chen L, Wu C, Chen J, Ng C. 289 A Comparison Between the 4-level and 5-level Taiwan Pediatric Triage System in Predicting Resource Utilization in the Emergency Department. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.319] [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: 10/17/2022]
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Swails J, Smock L, Tang Y, Hsu K. P5-S6.34 Provider characteristics associated with gonorrhoea treatment errors, Massachusetts, 2010. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.590] [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: 11/04/2022]
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Watkins DJ, Tabernero J, Schmoll H, Trarbach T, Ramos FJ, Howe J, Brown HM, Clark J, Hsu K, Lu BD, Cunningham D. A randomized phase II/III study of the anti-IGF-1R antibody MK-0646 (dalotuzumab) in combination with cetuximab (Cx) and irinotecan (Ir) in the treatment of chemorefractory metastatic colorectal cancer (mCRC) with wild-type (wt) KRAS status. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.3501] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Wang DA, Chuang WY, Hsu K, Pham HT. Design of a Bézier-profile horn for high displacement amplification. Ultrasonics 2011; 51:148-156. [PMID: 20696449 DOI: 10.1016/j.ultras.2010.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2009] [Revised: 06/10/2010] [Accepted: 07/14/2010] [Indexed: 05/29/2023]
Abstract
A new horn for high displacement amplification is developed. The profile of the horn is a cubic Bézier curve. The ultrasonic actuation of the horn exploits the first longitudinal displacement mode of the horn. A design method of the horn using an optimization scheme and finite element analyses is developed. Prototypes of the horns are manufactured by a numerical control machining process. Performances of the proposed horn have been evaluated by experiments. Experimental results of the harmonic response of the fabricated horn confirm the effectiveness of the design method. The displacement amplification of the proposed horn is 71% higher than that of the traditional catenoidal horn with the same length and end surface diameters.
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Affiliation(s)
- D-A Wang
- Institute of Precision Engineering, National Chung Hsing University, Taichung 402, Taiwan, ROC.
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AghaKouchak A, Behrangi A, Sorooshian S, Hsu K, Amitai E. Evaluation of satellite-retrieved extreme precipitation rates across the central United States. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd014741] [Citation(s) in RCA: 194] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sathyanarayanan S, Watkins D, Sykes K, Howard S, Valentine E, Bloecher A, Clark E, Hsu K, Cunningham D, Winter C. 229 Anti-IGF1R therapy with dalotuzumab is efficacious in a sub-set of KRAS mutant cetuximab refractory CRC models. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71934-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Goldberg J, Chou J, Jakubowski A, Arcila M, Teruya-Feldstein J, Horwitz S, Barker J, Boulad F, Castro-Malaspina H, Hsu K, Jenq R, Kernan N, Koehne G, O'Reilly R, Prockop S, Scaradavou A, Small T, van den Brink M, Young J, Zhang Z, Papadopoulos E, Perales MA. The Memorial Sloan-Kettering Experience With Allogeneic Stem Cell Transplantation For T Cell Non-Hodgkins Lymphomas. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.245] [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: 10/19/2022]
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Perales MA, Jenq R, Goldberg JD, Wilton AS, Lee SSE, Castro-Malaspina HR, Hsu K, Papadopoulos EB, van den Brink MRM, Boulad F, Kernan NA, Small TN, Wolden S, Collins NH, Chiu M, Heller G, O'Reilly RJ, Kewalramani T, Young JW, Jakubowski AA. Second-line age-adjusted International Prognostic Index in patients with advanced non-Hodgkin lymphoma after T-cell depleted allogeneic hematopoietic SCT. Bone Marrow Transplant 2010; 45:1408-16. [PMID: 20062091 DOI: 10.1038/bmt.2009.371] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
T-cell depleted allogeneic hematopoietic SCT (TCD-HSCT) have shown durable disease-free survival with a low risk of GVHD in patients with AML. We investigated this approach in 61 patients with primary refractory or relapsed non-Hodgkin lymphoma (NHL), who underwent TCD-HSCT from January 1992 through September 2004. Patients received myeloablative cytoreduction consisting of hyperfractionated total body irradiation, followed by either thiotepa and cyclophosphamide (45 patients) or thiotepa and fludarabine (16 patients). We determined the second-line age-adjusted International Prognostic Index score (sAAIPI) before transplant transplant. Median follow-up of surviving patients is 6 years. The 10-year OS and EFS were 50% and 43%, respectively. The relapse rate at 10 years was 21% in patients with chemosensitive disease and 52% in those with resistant disease at time of HSCT. Nine of the 18 patients who relapsed entered a subsequent CR. OS (P=0.01) correlated with the sAAIPI. The incidence of grades II-IV acute GVHD was 18%. We conclude that allogeneic TCD-HSCT can induce high rates of OS and EFS in advanced NHL with a low incidence of GVHD. Furthermore, the sAAIPI can predict outcomes and may be used to select the most appropriate patients for this type of transplant.
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Affiliation(s)
- M-A Perales
- Allogeneic Bone Marrow Transplantation Service, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
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Song C, Hsu K, Witting P, Geczy C, Freedman S. High Glucose Levels Enhance the Proinflammatory and Prothrombotic Actions of Serum Amyloid A (SAA) in Endothelial Cells. Heart Lung Circ 2010. [DOI: 10.1016/j.hlc.2010.06.804] [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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Watkins DJ, Tabernero J, Schmoll HJ, Trarbach T, Ramos FJ, Hsu K, Gates M, Clark J, LeVan P, Cunningham D. A phase II study of the anti-IGFR antibody MK-0646 in combination with cetuximab and irinotecan in the treatment of chemorefractory metastatic colorectal cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.4127] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4127 Background: Evidence of cross-talk between EGFR and IGFR signaling pathways provide a logical rationale for combining anti-EGFR and anti-IGFR strategies in the treatment of cancer. Prior to commencing a blinded randomised phase II study, an opened-labelled safety run-in was undertaken to assess the tolerability of a three-drug combination utilizing irinotecan (Ir), cetuximab (Cx) and two schedules of MK-0646 (Mk). Methods: Eligible patients (pts) had previously failed both Ir and oxaliplatin and had progressed on or within 3 months of their last therapy. Pts were required to have measurable disease and tissue samples available for tumour KRAS testing. Pts were randomised to receive either Mk 10mg/kg weekly (Arm A) or Mk 15mg/kg loading followed by 7.5mg/kg every alternate week (Arm B). All randomised pts also received Cx 400mg/m2 loading followed by 250mg/m2 weekly and Ir according to the same dose and schedule as they had previously received. Patients continued on treatment until disease progression with radiological response assessments undertaken every 6 weeks. Results: 10 pts were recruited to Arm A and 8 to Arm B. Pt characteristics: median age 60.5 years, male 67%, PS 0/1 33%/67%. Median number of prior chemotherapy regimens 3. The median number of cycles of Mk received in Arm A and B is 25 and 8 respectively. Reported grade III/IV toxicities in Arm A and Arm B were: neutropenia 30% and 0%, diarrhoea 30% and 25%, hypomagnesemia 0% and 25%. Hyperglycemia (≥ grade 2) was seen in 10% of Arm A and 25% in Arm B. Acneiform skin toxicity (≥ grade 2) was seen in 30% of Arm A and 62% of Arm B. The radiological response rate was 33% in Arm A and 14% in Arm B. The median time on study drug is 5.8 months in Arm A and 3.9 months in Arm B. 2 pts on Arm A and 1 in Arm B remain on study therapy. Tumour KRAS testing is in progress. Conclusions: The combination of MK-0646, cetuximab and irinotecan is tolerable with no concerning overlapping toxicities highlighted. PFS and KRAS data will be available for presentation. The efficacy of this three drug combination is under evaluation in an ongoing randomised phase II/III study. [Table: see text]
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Affiliation(s)
- D. J. Watkins
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - J. Tabernero
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - H. J. Schmoll
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - T. Trarbach
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - F. J. Ramos
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - K. Hsu
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - M. Gates
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - J. Clark
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - P. LeVan
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
| | - D. Cunningham
- Royal Marsden Hospital, London and Surrey, United Kingdom; Vall d’Hebron University Hospital, Barcelona, Spain; University of Halle, Halle, Germany; University Hospital Essen, Essen, Germany; Merck & Co., Inc., North Wales, PA
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Hidalgo M, Tirado Gomez M, Lewis N, Vuky JL, Taylor G, Hayburn JL, Hsu K, Kosh M, Picozzi VJ. A phase I study of MK-0646, a humanized monoclonal antibody against the insulin-like growth factor receptor type 1 (IGF1R) in advanced solid tumor patients in a q2 wk schedule. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.3520] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Atzori F, Tabernero J, Cervantes A, Botero M, Hsu K, Brown H, Hanley W, Macarulla T, Rosello S, Baselga J. A phase I, pharmacokinetic (PK) and pharmacodynamic (PD) study of weekly (qW) MK-0646, an insulin-like growth factor-1 receptor (IGF1R) monoclonal antibody (MAb) in patients (pts) with advanced solid tumors. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.3519] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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37
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O'Neal L, Hsu K, MacVittie T, Farese A, Gilbert M. Sargramostim (Leukine®/GM-CSF) for Autologous (Au) or Allogeneic (Allo) Bone Marrow Transplant (BMT) Engraftment Delay or Failure (ED/F) After Total Body Irradiation Conditioning (TBI). Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.169] [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: 10/22/2022]
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Stein MN, Tan A, Taber K, Fernandez R, Agrawal NG, Vandendries E, Hsu K, Walker A, Holen K, Wilding G. Phase I clinical and pharmacokinetic (PK) trial of the kinesin spindle protein (KSP) inhibitor MK-0731 in patients with solid tumors. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.2548] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
2548 Background: KSP is essential for the separation of spindle poles during mitosis and inhibition results in mitotic arrest. MK- 0731 is a potent inhibitor of KSP, with an IC50 of 2.2 nM, and >20,000 fold selectivity against other kinesins. MK-0731 causes mitotic arrest with an EC50 in several tumor cell lines of 3–5 nM. Methods: Phase I study to determine the safety and tolerability, MTD, and PK of MK-0731 administered IV over 24 hrs every 21 days. In part 1, dosing started at 6 mg/m2/24 hr and was escalated until the MTD was reached. In part 2, pts with measurable taxane-resistant cancer were treated at the MTD established in Part 1 (target accrual =22 pts in part 2). Interim Results: 35 pts with solid tumors (M/F 23/12), median age 63 yrs (23 - 79), were treated at doses of 6 to 48 mg/ m2/24hrs (median cycles 3, range 1–10, total cycles=128). Frequent tumor types included prostate (8), ovarian (4), colon (3), bladder (2), neuroendocrine (2), lung (2), breast (2). Prolonged (>5 days) grade 4 neutropenia was observed in 2 pts at 48 mg/m2/24hrs (11 days duration) and 2 pts at 24 mg/m2/24hrs (7 days duration) leading to expansion of cohorts at lower dose levels. At the MTD of 17 mg/ m2/24, there were no DLTs. 14 patients have been enrolled at the MTD in part 2 of the study. Drug related grade 3/4 toxicities were anemia (1), AST (1), hyperglycemia (1), nausea/vomiting (1), neutropenia (7), syncope (1). PK results from the first 20 patients suggest that MK- 0731 concentrations appear to decline monoexponentially or biexponentially following the infusion with terminal t1/2 from ∼4 to 22 hrs. In some patients, steady-state concentrations may not be achieved by the end of the 24 hr infusion. Mean values at the 17 mg/m2/24hrs dose level were Cmax=599 nM, AUC8=14.56 μM·hr, and CL=119 mL/min. AUC, exposures, and end of infusion concentrations appear to increase proportionally with dose. Stable disease for = 4 cycles (range 4- 10) was seen in 16 patients. Conclusion: Treatment with MK-0731 at the MTD of 17 mg/m2/day every 21 days in patients with advanced solid tumors was well tolerated with consistent dose limiting toxicity of myelosuppression. No significant financial relationships to disclose.
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Affiliation(s)
- M. N. Stein
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - A. Tan
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - K. Taber
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - R. Fernandez
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - N. G. Agrawal
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - E. Vandendries
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - K. Hsu
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - A. Walker
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - K. Holen
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
| | - G. Wilding
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; PAREXEL International, Waltham, MA; Univ of Wisc Comp Cancer Ctr, Madison, WI
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Papanicolaou GA, Mihu C, Kadeishvili K, Doll M, Stokar D, Buchbinder A, Hsu K, O'Reilly R, Pamer EG, Satagopan J. Association of MBL2 genotypes wtih infections and outcome after allogeneic stem cell transplantation. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.7100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7100 Background: Low MBL2 concentration and MBL2 genotype variants have been associated with an increased risk of infection. Our objective was to correlate MBL2 genotypes with specific infections and outcome of HSCT. Methods: 125 non- consecutive, non-selected HSCT were examined. Patients were classified as high or low risk group based on status of underlying disease. Antifungal prophylaxis consisted of fluconazole 400 mg daily. Patients on steroids received mould prophylaxis. There was no routine antibacterial prophylaxis. Microbiologically confirmed infections were recorded. Genotype was determined by PR-Melting Curve Analysis on blood or buccal swab specimens. MBL genotype was classified as wild-type: A/A (MBL-sufficient, MBL-S) or variant-type: A/O, O/O (MBL deficient, MBL- D). Patients were followed for up to 2 years. Analyses of categorical variables were performed using the Fisher exact test and the Log-Rank test for time to event. Results: Seventy-one (58.2%) patients were homozygous for wild-type MBL2 (AA), 43 (35.3%) were heterozygous (A/0) and 8 (6.5%) were homozygous for variant genotypes (OO). MBL-D group had higher incidence of fungal infections (20% vs 7%, p=0.05), and in particular Aspergillosis (12% vs 3%, p=0.05). MBL-D was associated with a trend for higher rates of bacterial infections (63% vs 46%, p=0.10) and total number of bacterial infections (p=0.10). Rates of respiratory and enteric viral infections or CMV were similar in MBL-D and MBL-S groups (41% vs 38%, p=0.9 and 58% vs. 54% p=1.0 respectively). Patients with MBL-D genotype were at a disadvantage in relapse-free (RFS) and overall survival (OS), (p<0.01 and p=.08). This disadvantage was also observed when stratified by disease risk groups. The estimated 2-year relapse-free survival rate was 30% compared to 53% for MBL-D vs. MBL-S patients (p<0.01). Conclusions: 1) Patients with variant MBL genotype (MBL-D) had a trend for increased incidence and number of bacterial infections. 2) MBL-D genotype and graft versus host disease were risk factors for aspergillosis. 3) MBL-D genotype was associated with worse overall survival and relapse free survival post HSCT. These data suggest that MBL-D patients have impaired immune function compared with MBL-S patients and is consistent with animal data. [Table: see text]
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Affiliation(s)
- G. A. Papanicolaou
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - C. Mihu
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - K. Kadeishvili
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - M. Doll
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - D. Stokar
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - A. Buchbinder
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - K. Hsu
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - R. O'Reilly
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - E. G. Pamer
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
| | - J. Satagopan
- Memorial Sloan Kettering Cancer Center, New York, NY; ENZON Pharmaceuticals Inc, Piscataway, NJ
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Yu J, Chewning J, Hsu K. 281: Alteration of NK tolerance early post-allogeneic hematopoietic cell transplantation results in NK alloreactivity driven by lack of recipient HLA ligand for donor inhibitory KIR. Biol Blood Marrow Transplant 2007. [DOI: 10.1016/j.bbmt.2006.12.286] [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: 10/23/2022]
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41
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Song C, Shen Y, Yamen E, Hsu K, Yan W, Witting P, Geczy C, Freedman S. SAA Induction of TNF in PBMC from Patients with Coronary Artery Disease. Heart Lung Circ 2007. [DOI: 10.1016/j.hlc.2007.06.424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Stein MN, Rubin EH, Scott PD, Fernandez R, Agrawal NG, Hsu K, Walker A, Holen K, Wilding G. Phase I clinical and pharmacokinetic (PK) trial of the kinesin spindle protein (KSP) inhibitor MK-0731 in cancer patients. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.2001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
2001 Background: KSP is essential for the separation of spindle poles during mitosis and inhibition results in mitotic arrest. Function is thought to be limited to mitosis and inhibitors should not cause the peripheral neuropathy seen with other mitotic-inhibitors. MK-0731 is a potent inhibitor of KSP, with an IC50 of 2.2 nM, and >20,000 fold selectivity against other kinesins. MK-0731 causes mitotic arrest with an EC50 in several tumor cell lines of 3−5 nM. Methods: Phase I study to determine the safety and tolerability, MTD, and PK of MK-0731 administered IV over 24 hrs every 21 (Q21) ds. Results: Eight pts with solid tumors (M/F 6/2), median age 55 yrs (45–72 yrs), were treated at doses of 6 to 48 mg/m2/24hrs. Prolonged (≥5 ds) Grade 4 neutropenia was observed in 2 pts at 48 mg/m2/24 hrs leading to expansion of cohorts at lower dose levels. Other drug related toxicities include diarrhea, alopecia, nail changes, nausea/vomiting, mucositis, abdominal pain, anorexia, phlebitis. PK results suggest that steady-state concentrations may not be achieved by the end of the 24 hr infusion and MK-0731 concentrations appear to decline monoexponentially or biexponentially following the infusion with terminal t1/2 from ∼4 to 11 hrs. Median values at the 48 mg/m2/24 hrs dose level were Cmax = 1223 nM, AUC∞ = 26.585 μM · hr, and CL=122 mL/min. AUC, exposures, and end of infusion concentrations appear to increase proportionally with dose. Conclusions: This is the first study of MK-0731. The MTD was exceeded at 48 mg/m2/24 hrs Q21. Further evaluation will continue at lower doses. [Table: see text]
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Affiliation(s)
- M. N. Stein
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - E. H. Rubin
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - P. D. Scott
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - R. Fernandez
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - N. G. Agrawal
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - K. Hsu
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - A. Walker
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - K. Holen
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
| | - G. Wilding
- Cancer Institute of New Jersey, New Brunswick, NJ; Merck Research Labs, Blue Bell, PA; University of Wisconsin Comprehensive Cancer Center, Madison, WI
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Huber R, Wojtkowski M, Taira K, Fujimoto J, Hsu K. Amplified, frequency swept lasers for frequency domain reflectometry and OCT imaging: design and scaling principles. Opt Express 2005; 13:3513-28. [PMID: 19495256 DOI: 10.1364/opex.13.003513] [Citation(s) in RCA: 152] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We demonstrate a high-speed, frequency swept, 1300 nm laser source for frequency domain reflectometry and OCT with Fourier domain/swept-source detection. The laser uses a fiber coupled, semiconductor amplifier and a tunable fiber Fabry-Perot filter. We present scaling principles which predict the maximum frequency sweep speed and trade offs in output power, noise and instantaneous linewidth performance. The use of an amplification stage for increasing output power and for spectral shaping is discussed in detail. The laser generates ~45 mW instantaneous peak power at 20 kHz sweep rates with a tuning range of ~120 nm full width. In frequency domain reflectometry and OCT applications the frequency swept laser achieves 108 dB sensitivity and ~10 mum axial resolution in tissue. We also present a fast algorithm for real time calibration of the fringe signal to equally spaced sampling in frequency for high speed OCT image preview.
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Chewning J, Castro-Malaspina H, Hsu K, Jakubowski A, Kernan N, Papadopoulos E, Perales MA, Prockop S, Small T, Vandenbrink M, Young J, O’Reilly R, Boulad F. Fludarabine-based conditioning secures engraftment of secondary hematopoietic stem cell allografts (HSCT) used to treat graft failure. Biol Blood Marrow Transplant 2005. [DOI: 10.1016/j.bbmt.2004.12.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Head JF, Hsu K, Jiang X, Elliott RL. Multiple antigens in a breast cancer vaccine result in a higher immune response rate in breast cancer patients. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.2607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- J. F. Head
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
| | - K. Hsu
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
| | - X. Jiang
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
| | - R. L. Elliott
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
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Hsu K, Head JF, Jiang X, Elliott RL. Whole cell preparations of MCF-7 breast carcinoma cells are more active than lysed cell preparations in lymphocyte blastogenesis assays (LBAs) of breast cancer patients. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.2596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- K. Hsu
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
| | - J. F. Head
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
| | - X. Jiang
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
| | - R. L. Elliott
- Elliott-Hailey-Head Breast Cancer Research & Treatment Center, Baton Rouge, LA
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Hsu K, Moore T. Pathological case of the month. Tuberculosis pleural effusion. Arch Pediatr Adolesc Med 2001; 155:1173-4. [PMID: 11576016 DOI: 10.1001/archpedi.155.10.1173] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- K Hsu
- Section of Pediatric Diseases, Boston University Medical Center, Finland Labs 502, 774 Albany St, Boston, MA 02118-2393, USA.
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Abstract
The zebrafish (Danio rerio) animal model offers a unique opportunity to discover novel genes required for the control of normal vertebrate myeloid cell development. It is well suited for both developmental and genetic analyses: eg, genome-wide chemical mutagenesis screens have led to the identification of specific new genes affecting vertebrate erythropoiesis. Mutants defective in one or more hematopoietic functions will be useful as models of human disease and will assist in the elucidation of lineage-specific developmental programs. By using a combination of forward genetic mutagenesis screens and emerging strategies based on transgenic and antisense knockdown approaches, it should be possible to dissect the genetic programs that lead to myeloproliferative/myelodysplastic syndromes and to acute myeloid leukemia.
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Affiliation(s)
- K Hsu
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, 44 Binney Street, Boston, MA 02115, USA
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Abstract
OBJECTIVE To determine whether the lipophilic antioxidant U-74389G can ameliorate the acute lung injury induced by phorbol myristate acetate (PMA) in our isolated lung model in rats, and to compare its activity with the intracellular enzymes superoxide dismutase (SOD) or catalase. DESIGN Randomized, controlled study. SETTING Animal-care facility procedure room. SUBJECTS Forty-two adult male Sprague-Dawley rats each weighing 250-350 g. INTERVENTIONS Typical acute lung injury was induced successfully by PMA during 60 mins of observation. PMA (2 microg/kg) elicited a significant increase in microvascular permeability (measured by using the capillary filtration coefficient Kfc), lung weight gain, the lung weight/body weight ratio, pulmonary arterial pressure, and the protein concentration of the bronchoalveolar lavage fluid. MEASUREMENTS AND MAIN RESULTS Pretreatment with 1 mg of U-74389G significantly attenuated the acute lung injury induced by PMA, all parameters having decreased significantly (p <.001). The protective effect of U-74389G was dose dependent, but SOD (6,000 U/kg) or catalase (50,000 U/kg) exhibited no protective effect. CONCLUSIONS U-74389G significantly ameliorates acute lung injury induced by PMA in rats.
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Affiliation(s)
- S J Chu
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China.
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Abstract
Matrix Gla protein (MGP) is a vitamin K-dependent extracellular matrix protein commonly found in a variety of tissues. In this study, we describe the potential use of MGP gene expression as the tumor marker of colorectal cancer. A decrease in expression of the MGP gene was also discovered in colorectal cancer using differential screening of cDNA libraries. The MGP expression in 80 human colorectal adenocarcinomas was quantified by a Northern blot analysis to better define the expression pattern of MGP in colorectal cancer. The expression of MGP mRNA was reduced in 63 of 80 (79%) colorectal adenocarcinomas (P<0.001) as compared to the mRNA in adjacent normal tissue, implying that a decrease in MGP expression is associated with colorectal cancer development. The proportion of tumors with downregulated expression of MGP was lower in Duke's A/B than Duke's C/D (34 of 47 versus 26 of 33, respectively) tumors and was lower in moderate differentiation than poor differentiation (44 of 64 versus 16 of 16, respectively). However, chi(2) analysis does not reveal any correlation between a loss of MGP expression and tumor progression or differentiation state. In conclusion, the downregulation of MGP mRNA generally occurs in colorectal adenocarcinomas. Although the role of MGP in cancer development is unknown, the reduced expression of MGP may be used to distinguish the normal colorectal cells from malignant cells.
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Affiliation(s)
- C Fan
- Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, Taipei, Taiwan
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