1
|
Gorraiz G, Porta G, McMakin DL, Kennard BD, Douaihy AB, Biernesser C, Foxwell AA, Wolfe K, Goldstein T, Brent DA. Factors Associated With Reasons for Living Among Suicidal Adolescents. Arch Suicide Res 2024; 28:471-481. [PMID: 37013700 PMCID: PMC10548347 DOI: 10.1080/13811118.2023.2190367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
OBJECTIVE The objective of this study was to identify baseline demographic and clinical factors associated with higher scores on the Reasons for Living Inventory for Adolescents (RFL-A) at baseline and over follow-up. METHOD Using data from a pilot clinical trial of a brief intervention for suicidal youth transitioning from inpatient to outpatient, we identified univariate associations of baseline characteristics with RFL-A and used regression to identify the most parsimonious subset of these variables. Finally, we examined to what extent changes in these characteristics over time were related to changes in RFL-A. RESULTS Univariate analyses found that better external functional emotion regulation and social support were associated with higher RFL-A scores; more self-reported depression, internal dysfunctional emotion regulation, sleep disturbance, anxiety, and distress tolerance were associated with lower RFL-A scores. Multiple linear regression identified internal dysfunctional emotion regulation and external functional emotion regulation as the most parsimonious set of characteristics associated with RFL-A. Improvement in internal emotion regulation, sleep, and depression were related to improvements in RFL-A over time. CONCLUSION Our findings indicate that emotion regulation-specifically maladaptive internal strategies and use of external resources-is strongly associated with RFL-A. Improvements in internal emotion regulation (r = 0.57), sleep (r = -0.45), and depression (r = -0.34) were related to increases in RFL-A.
Collapse
Affiliation(s)
- G. Gorraiz
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - G. Porta
- UPMC Western Psychiatric Hospital, Pittsburgh, PA, United States
| | - D. L. McMakin
- Department of Psychology, Florida International University, Miami, FL, United States
| | - B. D. Kennard
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - A. B. Douaihy
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- UPMC Western Psychiatric Hospital, Pittsburgh, PA, United States
| | - C. Biernesser
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - A. A. Foxwell
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
- Children’s Health Medical Center, Dallas, TX, United States
| | - K. Wolfe
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
- Children’s Health Medical Center, Dallas, TX, United States
| | - T. Goldstein
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- UPMC Western Psychiatric Hospital, Pittsburgh, PA, United States
| | - D. A. Brent
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- UPMC Western Psychiatric Hospital, Pittsburgh, PA, United States
| |
Collapse
|
2
|
Mayo KR, Basford MA, Carroll RJ, Dillon M, Fullen H, Leung J, Master H, Rura S, Sulieman L, Kennedy N, Banks E, Bernick D, Gauchan A, Lichtenstein L, Mapes BM, Marginean K, Nyemba SL, Ramirez A, Rotundo C, Wolfe K, Xia W, Azuine RE, Cronin RM, Denny JC, Kho A, Lunt C, Malin B, Natarajan K, Wilkins CH, Xu H, Hripcsak G, Roden DM, Philippakis AA, Glazer D, Harris PA. The All of Us Data and Research Center: Creating a Secure, Scalable, and Sustainable Ecosystem for Biomedical Research. Annu Rev Biomed Data Sci 2023; 6:443-464. [PMID: 37561600 DOI: 10.1146/annurev-biodatasci-122120-104825] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
The All of Us Research Program's Data and Research Center (DRC) was established to help acquire, curate, and provide access to one of the world's largest and most diverse datasets for precision medicine research. Already, over 500,000 participants are enrolled in All of Us, 80% of whom are underrepresented in biomedical research, and data are being analyzed by a community of over 2,300 researchers. The DRC created this thriving data ecosystem by collaborating with engaged participants, innovative program partners, and empowered researchers. In this review, we first describe how the DRC is organized to meet the needs of this broad group of stakeholders. We then outline guiding principles, common challenges, and innovative approaches used to build the All of Us data ecosystem. Finally, we share lessons learned to help others navigate important decisions and trade-offs in building a modern biomedical data platform.
Collapse
Affiliation(s)
- Kelsey R Mayo
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Melissa A Basford
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Robert J Carroll
- Deparment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
| | - Moira Dillon
- Verily Life Sciences, South San Francisco, California, USA
| | - Heather Fullen
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jesse Leung
- Verily Life Sciences, South San Francisco, California, USA
| | - Hiral Master
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Shimon Rura
- Verily Life Sciences, South San Francisco, California, USA
| | - Lina Sulieman
- Deparment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
| | - Nan Kennedy
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Eric Banks
- Data Sciences Platform, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
| | - David Bernick
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
| | - Asmita Gauchan
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Lee Lichtenstein
- Data Sciences Platform, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
| | - Brandy M Mapes
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Kayla Marginean
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Steve L Nyemba
- Deparment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
| | - Andrea Ramirez
- The All of Us Research Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Charissa Rotundo
- Vanderbilt University Medical Center Enterprise Cybersecurity, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Keri Wolfe
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Weiyi Xia
- Deparment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
| | - Romuladus E Azuine
- The All of Us Research Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Robert M Cronin
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Joshua C Denny
- The All of Us Research Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Abel Kho
- Department of Medicine and Institute for Augmented Intelligence in Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Christopher Lunt
- The All of Us Research Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Bradley Malin
- Deparment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
| | - Karthik Natarajan
- Department of Biomedical Informatics, Columbia University, New York, NY, USA
| | - Consuelo H Wilkins
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Hua Xu
- Section of Biomedical Informatics and Data Science, School of Medicine, Yale University, New Haven, Connecticut, USA
| | - George Hripcsak
- Department of Biomedical Informatics, Columbia University, New York, NY, USA
| | - Dan M Roden
- Deparment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | | - David Glazer
- Verily Life Sciences, South San Francisco, California, USA
| | - Paul A Harris
- Deparment of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA;
| |
Collapse
|
3
|
Isath A, Ohira S, Levine E, Pan S, Lanier G, Gupta C, Wolfe K, Spielvogel D, Gass A, Kai M. Ex-Vivo Heart Perfusion for Cardiac Transplantation: An Initial Experience in the United States. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
|
4
|
Paller A, Guttman-Yassky E, Boguniewicz M, Levit N, Wolfe K. 408 Dupilumab reduces biomarkers indicative of type 2 inflammation in children aged ≥ 6 months to 5 years with moderate-to-severe atopic dermatitis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.421] [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: 11/19/2022]
|
5
|
Paller A, Guttman-Yassky E, Boguniewicz M, Sun Y, Wolfe K, Dillon M. 297 Dupilumab reduces biomarkers indicative of type 2 inflammation in children aged ≥ 6 months to < 6 years with moderate-to-severe atopic dermatitis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.305] [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]
|
6
|
Van der Geest K, Borg F, Wolfe K, Schmidt WA, Luqmani R, Dasgupta B. FRI0195 ULTRASONOGRAPHIC HALO SCORE ASSOCIATES WITH INTIMAL HYPERPLASIA IN GIANT CELL ARTERITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:We have recently developed a novel ultrasonographic Halo Score to quantify the extent of vascular inflammation in GCA [1]. High Halo Scores were associated with a high rate of ocular ischaemia among patients with GCA. Earlier studies have shown that GCA patients with intimal hyperplasia in their temporal artery biopsy (TAB) are at the highest risk of neuro-ophthalmic, ischaemic complications [2,3]. We therefore questioned whether the ultrasonographic Halo Score might be linked to the presence of intimal hyperplasia in patients with GCA.Objectives:To investigate the relationship between the ultrasonographic Halo Score and intimal hyperplasia.Methods:This is a prospective study including 92 patients suspected of having GCA, who underwent both ultrasound of temporal/axillary arteries and TAB at diagnosis. Ultrasonographic halo counts and Halo Scores were determined [1]. An experienced pathologist determined whether or not the TAB findings were consistent with GCA. TABs were systematically evaluated for the presence of a transmural infiltrate and intimal hyperplasia. Multiple linear regression analysis was performed with either halo counts or Halo Scores as the dependent variable. Predictive variables included the presence of a transmural TAB infiltrate, intimal hyperplasia and male sex.Results:The TAB was consistent with GCA in 27 patients. The TAB revealed transmural inflammation in 18 patients and giant cells in 24 patients. Intimal hyperplasia was found in 20 patients with a positive TAB. Patients with a positive TAB showed higher halo counts and Halo Scores than patients with a negative TAB. Overall, patients with a positive TAB and intimal hyperplasia presented with the highest halo counts and Halo Scores (Figure). Among patients with a positive TAB, only intimal hyperplasia and male sex were predictive of higher halo counts and Halo Scores in the multiple linear regression analysis. Ocular ischaemia was present in 14% of patients with a positive TAB without intimal hyperplasia. However, 40% of patients with a positive TAB and intimal hyperplasia suffered from ocular ischaemia.Conclusion:The ultrasonographic Halo Score is strongly influenced by the presence of intimal hyperplasia, a TAB feature that associates with cranial ischemic complications in patients with GCA [2,3].References:[1]van der Geest KSM, Borg F, Kayani A, Paap D, Gondo P, Schmidt W, et al. Novel ultrasonographic Halo Score for giant cell arteritis: assessment of diagnostic accuracy and association with ocular ischaemia. Annals of the Rheumatic Diseases 2020 Jan 3.[2]Makkuni D, Bharadwaj A, Wolfe K, Payne S, Hutchings A, Dasgupta B. Is intimal hyperplasia a marker of neuro-ophthalmic complications of giant cell arteritis? Rheumatology (Oxford, England) 2008 Apr;47(4):488-490.[3]Kaiser M, Weyand CM, Bjornsson J, Goronzy JJ. Platelet-derived growth factor, intimal hyperplasia, and ischemic complications in giant cell arteritis. Arthritis and Rheumatism 1998 Apr;41(4):623-633.FigureDisclosure of Interests:Kornelis van der Geest Speakers bureau: Roche (2019), Frances Borg: None declared, Konrad Wolfe: None declared, Wolfgang A. Schmidt Grant/research support from: GSK, Novartis, Roche, Sanofi, Consultant of: GSK, Novartis, Roche, Sanofi, Chugai, Raashid Luqmani Grant/research support from: Arthritis UK, the Medical Research Council, the University of California San Francisco/Oxford Invention Fund, the Canadian Institutes of Health Research, The Vasculitis Foundation, GSK, Consultant of: GSK, Medpace, MedImmune, Roche, Bhaskar Dasgupta Grant/research support from: Roche, Consultant of: Roche, Sanofi, GSK, BMS, AbbVie, Speakers bureau: Roche
Collapse
|
7
|
Arican I, Bass N, Neelam K, Wolfe K, McQuillin A, Giaroli G. Prevalence of attention deficit hyperactivity disorder symptoms in patients with schizophrenia. Acta Psychiatr Scand 2019; 139:89-96. [PMID: 30105761 PMCID: PMC6412852 DOI: 10.1111/acps.12948] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/20/2018] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To investigate the frequency of childhood and adult attention deficit hyperactivity disorder (ADHD) symptoms in a cohort of patients with schizophrenia (SCZ). METHODS A systematic review was conducted to evaluate existing evidence. Two self-report questionnaires were used to investigate adult ADHD and childhood ADHD symptoms in 126 patients with ICD-10 diagnoses of SCZ. RESULTS Five studies were included in the systematic review, with the prevalence of childhood and adult ADHD in SCZ subjects ranging between 17-57% and 10-47% respectively. Within our cohort, 47% of patients reported positive screening for ADHD symptoms either in childhood or adulthood. 23% reported symptomatology consistent with both childhood and adult ADHD. CONCLUSIONS We demonstrate a greater presence of ADHD symptomatology in SCZ compared to that reported for ADHD in the general population. Our findings highlight the importance of improved clinical assessment and treatment considerations in a subgroup of patients with SCZ.
Collapse
Affiliation(s)
- I. Arican
- Molecular Psychiatry LaboratoryDivision of PsychiatryUniversity College LondonLondonUK
| | - N. Bass
- Molecular Psychiatry LaboratoryDivision of PsychiatryUniversity College LondonLondonUK
| | - K. Neelam
- Greater Manchester Mental Health NHS Foundation TrustBoltonUK
| | - K. Wolfe
- Molecular Psychiatry LaboratoryDivision of PsychiatryUniversity College LondonLondonUK
| | - A. McQuillin
- Molecular Psychiatry LaboratoryDivision of PsychiatryUniversity College LondonLondonUK
| | - G. Giaroli
- Molecular Psychiatry LaboratoryDivision of PsychiatryUniversity College LondonLondonUK
| |
Collapse
|
8
|
Morrissey J, Varela J, Ortiz R, Wolfe K. Adaptation of the yeast Kluyveromyces marxianus to a biotechnological niche. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
9
|
Lee S, Liyanage S, Wulaningsih W, Wolfe K, Carr T, Younis C, Van Hemelrijck M, Popert R, Acher P. Towards a magnetic resonance imaging-based nomogram for the prediction of transperineal prostate biopsy outcome. Int J Surg 2016. [DOI: 10.1016/j.ijsu.2016.08.063] [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]
|
10
|
MacAskill F, Eldred-Evans D, Popert R, Carr T, Van Hemelrijck M, Wolfe K, Liyanage S. The diagnostic value of MRI-based PSA density to predict the outcome of primary transperineal sector-guided prostate biopsy. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.608] [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]
|
11
|
Wolfe K, Wilson M, Creinin M, Hou M. Likelihood of postpartum sterilization after vaginal delivery before and after prioritizing operating room access. Contraception 2015. [DOI: 10.1016/j.contraception.2015.06.172] [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: 11/30/2022]
|
12
|
Samoylov A, Cox N, Cochran A, Wolfe K, Donovan C, Kutzler M, Petrenko V, Baker H, Samoylova T. Generation and characterization of phage-GnRH chemical conjugates for potential use in cat and dog immunocontraception. Reprod Domest Anim 2013; 47 Suppl 6:406-11. [PMID: 23279551 DOI: 10.1111/rda.12061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Overpopulation of cats and dogs is a serious worldwide problem that demands novel, safe and cost-effective solutions. The objective of this study was to generate and characterize phage-peptide conjugates with gonadotropin-releasing hormone (GnRH) for potential use as an immunocontraceptive. A filamentous phage vector f5-8 with wild-type phage coat proteins was used as a carrier for construction of chemical conjugates with GnRH, a peptide that acts as a master reproductive hormone. In such conjugates, the phage body plays the role of a carrier protein, while multiple copies of GnRH peptide stimulate production of neutralizing anti-GnRH antibodies potentially leading to contraceptive effects. To generate the constructs, four different GnRH-based peptides were synthesized and conjugated to phage particles in a two-step procedure: (i) peptides were reacted with phage to form a conjugate using 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride chemistry (EDC) and (ii) the conjugates were separated from remaining free peptides by dialysis. Formation and specificity of phage-GnRH conjugates were confirmed by three independent methods: spectrophotometry, electron microscopy and ELISA. When the conjugates were tested for interaction with sera collected from cats and dogs immunized with GnRH-based vaccines in independent studies, strong specific ELISA signals were obtained, suggesting the potential use of the conjugates for cat and dog immunosterilization. The ability of the conjugates to stimulate production of anti-GnRH antibodies in vivo was evaluated in mice. While optimization of dose, immunization route and adjuvant still requires investigation, our preliminary results demonstrated the presence of anti-GnRH antibodies in sera of mice immunized with such conjugates. Fertility trials in cats and dogs will be needed to evaluate contraceptive potentials of the phage-GnRH peptide chemical conjugates.
Collapse
Affiliation(s)
- A Samoylov
- Scott-Ritchey Research Center, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Brinkman T, Liu W, Armstrong G, Gajjar A, Merchant T, Kimberg C, Kun L, Srivastava DK, Gurney J, Robison L, Hudson M, Krull K, Rubens J, Lulla RR, Lai JS, Fangusaro J, Wolfe K, Madan-Swain A, Reddy A, Hunter G, Banos J, Kana R, Resch A, von Hoff K, von Buren AO, Friedrich C, Treulieb W, Lindow C, Kwiecien R, Ottensmeier H, Rutkowski S, Armstrong CL, Phillips PC, Lustig RA, Stamos C, Li Y, Belasco J, Minturn JE, Fisher MJ, Heinks-Maldonado T, Wingeier K, Lory V, Schafer C, Studer M, Steinlin M, Leibundgut K, de Ruiter M, Schouten N, Greidanus J, Grootenhuis M, Oosterlaan J, A ALV, Grill J, Puget S, Sainte-Rose C, Dufour C, Kieffer V, Dellatolas G, -Shkedi EB, Ben Arush MW, Kaplinsky H, Ash S, Goshen Y, Yaniv I, Cohen IJ, Levy JM, Tello T, Lu X, Gao D, Wilkening G, Donson A, Foreman N, Liu A, Korzeniewska J, Baginska BD, Perek D, Staccioli S, Chieffo D, Petrarca M, Moxon-Emre I, Taylor M, Bouffet E, Malkin D, Hawkins C, Scantlebury N, Mabbott D, Cunningham T, Bouffet E, Scantlebury N, Piscione J, Igoe D, Orfus M, Bartels U, Laughlin S, Tabori U, Mabbott D, Hardy K, Carlson-Green B, Conklin H, Dockstader C, Bouffet E, Wang F, Mabbott D, Bostan S, Dockstader C, Scantlebury N, Bouffet E, Liu F, Wang F, Mabbott D, Zou P, Li Y, Conklin HM, Mulhern RK, Butler RW, Ogg RJ, Diver T, Manley P, Kieran M, Chordas C, Liptak C, Delaney B, Brand S, Rey-Casserly C. NEUROPSYCHOLOGY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
14
|
Bloj M, Wolfe K, Hurlbert A. The perception of colour gradients. J Vis 2010. [DOI: 10.1167/2.7.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
15
|
Makkuni D, Bharadwaj A, Wolfe K, Payne S, Hutchings A, Dasgupta B. Is intimal hyperplasia a marker of neuro-ophthalmic complications of giant cell arteritis? Rheumatology (Oxford) 2008; 47:488-90. [PMID: 18285353 DOI: 10.1093/rheumatology/ken012] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The ischaemic complications of giant cell arteritis (GCA) such as blindness and stroke may result from luminal narrowing of the affected arteries. This study focuses on the association between the severity of intimal proliferation on temporal artery biopsy (TAB) histology and neuro-ophthalmic complications (NOCs) of GCA. METHOD We identified 30 cases of biopsy-proven temporal arteritis. One histopathologist (blinded to the clinical details) evaluated the TAB specimens and categorized the degree of maximum stenosis due to intimal hyperplasia into four grades: grade 1 is <50% luminal occlusion due to intimal hyperplasia, grade 2 is 50-75%, grade 3 is >75% and grade 4 is complete luminal occlusion. A second histopathologist (also blinded to the clinical details) independently evaluated the TAB specimens using the same grading system. The NOCs in these patients were noted after a case record review. RESULTS Of the 30 patients, 12 had NOC-10 with eye complications (complete visual loss, anterior ischaemic neuropathy, visual field defects), one patient had cerebral infarcts and one had both cerebral infarcts and vision loss. There was evidence for a statistically significant trend of NOC associated with higher intimal hyperplasia scores (P = 0.001). The scores of the histopathologists agreed for 23 (77%) patients and differed by 1 category for the remaining 7 (kappa-statistic 0.88). CONCLUSIONS Our study suggests that the degree of intimal hyperplasia on TAB histology (routinely available to all hospital units) seems to be closely associated with NOCs of GCA. The study highlights the possible prognostic as well as diagnostic role of the biopsy. We feel that intimal hyperplasia noted in biopsy specimens may help us in the risk stratification of GCA patients and targeting of appropriate and novel therapies.
Collapse
Affiliation(s)
- D Makkuni
- Department of Rheumatology, Southend University Hospital, Prittlewell Chase, Westcliff on Sea, Essex SS0 0RY, UK
| | | | | | | | | | | |
Collapse
|
16
|
|
17
|
Leon-Villapalos J, Wolfe K, Calonje E, Kangesu L. Involuting solitary cutaneous infantile myofibroma and thrombocytopaenia: a previously unreported clinical association. J Plast Reconstr Aesthet Surg 2007; 60:1260-2. [DOI: 10.1016/j.bjps.2006.01.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2005] [Accepted: 01/13/2006] [Indexed: 10/24/2022]
|
18
|
Bharadwaj A, Dasgupta B, Wolfe K, Nordborg C, Nordborg E. Difficulties in the development of histological scoring of the inflamed temporal arteries in giant cell arteritis. Rheumatology (Oxford) 2005; 44:1579-80. [PMID: 16263775 DOI: 10.1093/rheumatology/kei180] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
19
|
Dasgupta B, Bharadwaj A, Wolfe K, Nordborg C, Nordborg E. PP4. THE DIFFICULTIES IN THE DEVELOPMENT OF HISTOLOGICAL SCORING FOR INFLAMED TEMPORAL ARTERY IN GIANT CELL ARTERITIS. Rheumatology (Oxford) 2005. [DOI: 10.1093/rheumatology/keh757] [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: 11/14/2022] Open
|
20
|
Leon-Villapalos J, Wolfe K, Kangesu L. GLUT-1: an extra diagnostic tool to differentiate between haemangiomas and vascular malformations. ACTA ACUST UNITED AC 2005; 58:348-52. [PMID: 15780229 DOI: 10.1016/j.bjps.2004.05.029] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.2] [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: 10/22/2003] [Accepted: 05/27/2004] [Indexed: 10/26/2022]
Abstract
The differential diagnosis between juvenile haemangiomas, vascular malformations, pyogenic granulomas and normally proliferative endothelium (granulation tissue) on the basis of histology alone is sometimes difficult. This is important because haemangiomas, are self-limiting and vascular malformations are not. We report our experience of using the immunohistochemical marker GLUT-1 to distinguish haemangiomas from vascular malformations following the initial report by North and Colleagues (1998). We studied a total of 50 specimens from patients with vascular anomalies, and found that GLUT-1 reactivity was positive in 18 out of 19 juvenile haemangiomas, negative in two out of two noninvoluting congenital haemangiomas (NICH) and negative in 29 out of 29 vascular malformations, that included capillary malformations, lymphatic malformations, venous malformations and arteriovenous malformations (95% sensitivity, 100% specificity). Pyogenic granulomas (n = 4) and granulation tissue samples (n = 4) were used as negative controls. Placenta tissue was used as positive control. GLUT-1 accurately distinguishes haemangiomas from vascular malformations, and as a result from this work, we use this technique in routine histopathological differentiation of vascular anomalies.
Collapse
Affiliation(s)
- J Leon-Villapalos
- Department of Plastic and Reconstructive Surgery, St Andrews Centre for Plastic Surgery and Burns, Court Road, Broomfield, Chelmsford CM1 7ET, UK
| | | | | |
Collapse
|
21
|
Wolfe K. Questioning the biotech new world: leader of Council on Bioethics looks to the classics to help protect cultural values. Washington Post 2002:B9. [PMID: 11982013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
22
|
Venter JC, Adams MD, Myers EW, Li PW, Mural RJ, Sutton GG, Smith HO, Yandell M, Evans CA, Holt RA, Gocayne JD, Amanatides P, Ballew RM, Huson DH, Wortman JR, Zhang Q, Kodira CD, Zheng XH, Chen L, Skupski M, Subramanian G, Thomas PD, Zhang J, Gabor Miklos GL, Nelson C, Broder S, Clark AG, Nadeau J, McKusick VA, Zinder N, Levine AJ, Roberts RJ, Simon M, Slayman C, Hunkapiller M, Bolanos R, Delcher A, Dew I, Fasulo D, Flanigan M, Florea L, Halpern A, Hannenhalli S, Kravitz S, Levy S, Mobarry C, Reinert K, Remington K, Abu-Threideh J, Beasley E, Biddick K, Bonazzi V, Brandon R, Cargill M, Chandramouliswaran I, Charlab R, Chaturvedi K, Deng Z, Di Francesco V, Dunn P, Eilbeck K, Evangelista C, Gabrielian AE, Gan W, Ge W, Gong F, Gu Z, Guan P, Heiman TJ, Higgins ME, Ji RR, Ke Z, Ketchum KA, Lai Z, Lei Y, Li Z, Li J, Liang Y, Lin X, Lu F, Merkulov GV, Milshina N, Moore HM, Naik AK, Narayan VA, Neelam B, Nusskern D, Rusch DB, Salzberg S, Shao W, Shue B, Sun J, Wang Z, Wang A, Wang X, Wang J, Wei M, Wides R, Xiao C, Yan C, Yao A, Ye J, Zhan M, Zhang W, Zhang H, Zhao Q, Zheng L, Zhong F, Zhong W, Zhu S, Zhao S, Gilbert D, Baumhueter S, Spier G, Carter C, Cravchik A, Woodage T, Ali F, An H, Awe A, Baldwin D, Baden H, Barnstead M, Barrow I, Beeson K, Busam D, Carver A, Center A, Cheng ML, Curry L, Danaher S, Davenport L, Desilets R, Dietz S, Dodson K, Doup L, Ferriera S, Garg N, Gluecksmann A, Hart B, Haynes J, Haynes C, Heiner C, Hladun S, Hostin D, Houck J, Howland T, Ibegwam C, Johnson J, Kalush F, Kline L, Koduru S, Love A, Mann F, May D, McCawley S, McIntosh T, McMullen I, Moy M, Moy L, Murphy B, Nelson K, Pfannkoch C, Pratts E, Puri V, Qureshi H, Reardon M, Rodriguez R, Rogers YH, Romblad D, Ruhfel B, Scott R, Sitter C, Smallwood M, Stewart E, Strong R, Suh E, Thomas R, Tint NN, Tse S, Vech C, Wang G, Wetter J, Williams S, Williams M, Windsor S, Winn-Deen E, Wolfe K, Zaveri J, Zaveri K, Abril JF, Guigó R, Campbell MJ, Sjolander KV, Karlak B, Kejariwal A, Mi H, Lazareva B, Hatton T, Narechania A, Diemer K, Muruganujan A, Guo N, Sato S, Bafna V, Istrail S, Lippert R, Schwartz R, Walenz B, Yooseph S, Allen D, Basu A, Baxendale J, Blick L, Caminha M, Carnes-Stine J, Caulk P, Chiang YH, Coyne M, Dahlke C, Deslattes Mays A, Dombroski M, Donnelly M, Ely D, Esparham S, Fosler C, Gire H, Glanowski S, Glasser K, Glodek A, Gorokhov M, Graham K, Gropman B, Harris M, Heil J, Henderson S, Hoover J, Jennings D, Jordan C, Jordan J, Kasha J, Kagan L, Kraft C, Levitsky A, Lewis M, Liu X, Lopez J, Ma D, Majoros W, McDaniel J, Murphy S, Newman M, Nguyen T, Nguyen N, Nodell M, Pan S, Peck J, Peterson M, Rowe W, Sanders R, Scott J, Simpson M, Smith T, Sprague A, Stockwell T, Turner R, Venter E, Wang M, Wen M, Wu D, Wu M, Xia A, Zandieh A, Zhu X. The sequence of the human genome. Science 2001; 291:1304-51. [PMID: 11181995 DOI: 10.1126/science.1058040] [Citation(s) in RCA: 7678] [Impact Index Per Article: 333.8] [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: 12/13/2022]
Abstract
A 2.91-billion base pair (bp) consensus sequence of the euchromatic portion of the human genome was generated by the whole-genome shotgun sequencing method. The 14.8-billion bp DNA sequence was generated over 9 months from 27,271,853 high-quality sequence reads (5.11-fold coverage of the genome) from both ends of plasmid clones made from the DNA of five individuals. Two assembly strategies-a whole-genome assembly and a regional chromosome assembly-were used, each combining sequence data from Celera and the publicly funded genome effort. The public data were shredded into 550-bp segments to create a 2.9-fold coverage of those genome regions that had been sequenced, without including biases inherent in the cloning and assembly procedure used by the publicly funded group. This brought the effective coverage in the assemblies to eightfold, reducing the number and size of gaps in the final assembly over what would be obtained with 5.11-fold coverage. The two assembly strategies yielded very similar results that largely agree with independent mapping data. The assemblies effectively cover the euchromatic regions of the human chromosomes. More than 90% of the genome is in scaffold assemblies of 100,000 bp or more, and 25% of the genome is in scaffolds of 10 million bp or larger. Analysis of the genome sequence revealed 26,588 protein-encoding transcripts for which there was strong corroborating evidence and an additional approximately 12,000 computationally derived genes with mouse matches or other weak supporting evidence. Although gene-dense clusters are obvious, almost half the genes are dispersed in low G+C sequence separated by large tracts of apparently noncoding sequence. Only 1.1% of the genome is spanned by exons, whereas 24% is in introns, with 75% of the genome being intergenic DNA. Duplications of segmental blocks, ranging in size up to chromosomal lengths, are abundant throughout the genome and reveal a complex evolutionary history. Comparative genomic analysis indicates vertebrate expansions of genes associated with neuronal function, with tissue-specific developmental regulation, and with the hemostasis and immune systems. DNA sequence comparisons between the consensus sequence and publicly funded genome data provided locations of 2.1 million single-nucleotide polymorphisms (SNPs). A random pair of human haploid genomes differed at a rate of 1 bp per 1250 on average, but there was marked heterogeneity in the level of polymorphism across the genome. Less than 1% of all SNPs resulted in variation in proteins, but the task of determining which SNPs have functional consequences remains an open challenge.
Collapse
Affiliation(s)
- J C Venter
- Celera Genomics, 45 West Gude Drive, Rockville, MD 20850, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Green MS, Ricci J, Wolfe K. The appropriate evaluation of the patient at risk for sudden death from ventricular arrhythmias. Can J Cardiol 2000; 16 Suppl C:13C-5C. [PMID: 10887271] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
MESH Headings
- Death, Sudden, Cardiac/epidemiology
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Electrocardiography, Ambulatory
- Heart Failure/complications
- Heart Failure/mortality
- Heart Rate
- Humans
- Myocardial Ischemia/complications
- Myocardial Ischemia/mortality
- Risk Assessment
- Survival Rate
- Tachycardia, Ventricular/complications
- Tachycardia, Ventricular/etiology
- Tachycardia, Ventricular/mortality
- Ventricular Dysfunction, Left/complications
- Ventricular Dysfunction, Left/mortality
- Ventricular Fibrillation/complications
- Ventricular Fibrillation/etiology
- Ventricular Fibrillation/mortality
Collapse
Affiliation(s)
- M S Green
- University of Ottawa Heart Institute, Canada
| | | | | |
Collapse
|
24
|
|
25
|
Prendiville S, Burman KD, Ringel MD, Shmookler BM, Deeb ZE, Wolfe K, Azumi N, Wartofsky L, Sessions RB. Tall cell variant: an aggressive form of papillary thyroid carcinoma. Otolaryngol Head Neck Surg 2000; 122:352-7. [PMID: 10699809 DOI: 10.1016/s0194-5998(00)70047-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [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: 11/21/2022]
Abstract
Twenty-four cases of the tall cell variant (TCV), a subset of papillary thyroid carcinoma, were identified in a group of 624 patients with thyroid cancer. All pathology specimens were reviewed, and each patient's carcinoma was categorized according to characteristics on presentation, local recurrence, distant metastases, follow-up, and tumor-related mortality. The TCV group was compared with a historical control group (Mazzaferri and Jhiang: 1355 patients). The TCV group had a statistically higher percentage of stage 3 and 4 carcinoma, extrathyroidal invasion, and tumor size less than 1.5 cm than the control group. There was no statistical relationship between age greater than 50 years and stage in the TCV group. No relationship could be found between TCV histology and recurrence or mortality. These findings, combined with those of studies that link stage on presentation to poor outcomes, have led to our conclusion that TCV is an aggressive malignancy warranting appropriate treatment and close follow-up.
Collapse
Affiliation(s)
- S Prendiville
- Departments of Otolaryngology-Head and Neck Surgery and Pathology, Georgetown University Hospital, Washington, DC 20007, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Affiliation(s)
- K Hokamp
- Department of Genetics, University of Dublin, Trinity College, Dublin 2, Ireland.
| | | |
Collapse
|
27
|
Abstract
This was a prospective, structured interview to evaluate physician expectations of echocardiography and the subsequent impact on patient care. The setting involved requests for echocardiograms in patients admitted to a tertiary care teaching hospital. Measurements included assessment of the diagnostic and therapeutic implications of echocardiography perceived by the physicians and subsequently reported and confirmed by blinded chart review. From January to May 1997, 542 echocardiograms were performed on 500 inpatients (age 62 +/- 17 years; 56% men). Referring physicians were mainly house staff (83%) and from medical services. The main indications were evaluation of left ventricular function (54%) or valve function (16%). At the time of the request, 89% of physicians believed that echocardiography was needed to guide future investigations or treatment, although in 24% of cases, physicians could not provide details of such. A reported change in treatment occurred in 57% and was validated by chart review in 38%. Changes occurred more frequently in patients in the intensive care unit versus those not in the intensive care unit (54% vs 37%, P =.02) but were similar between attending physicians and house staff (frequency of change 41% vs 39%, P = not significant) and between those with and those without previous echocardiograms (38% vs 39%, P = not significant). The utility of the echocardiogram to influence treatment decisions in hospitalized patients is high, especially in critically ill patients. However, this impact is less than is anticipated at the time of the initial request. Further studies involving more select populations of patients are required.
Collapse
Affiliation(s)
- J W Tam
- University of Manitoba Health Sciences Centre, Winnipeg, Canada.
| | | | | | | | | |
Collapse
|
28
|
|
29
|
Affiliation(s)
- K Wolfe
- Department of Genetics, University of Dublin, Trinity College, Ireland.
| | | |
Collapse
|
30
|
Wolfe K. Return to work. Health Syst Rev 1997; 30:38-41. [PMID: 10168607] [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] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Worker's compensation isn't just for hard hats anymore. Occupational health strategies may be a lucrative launch-pad for hospitals interested in forming deeper relationships with employers.
Collapse
Affiliation(s)
- K Wolfe
- Health Management Technologies, Inc., Moraga, CA, USA
| |
Collapse
|
31
|
Wolfe K. Restoring a fair workers' compensation system for employer and employee. Med Interface 1997; 10:129-30, 132, 136. [PMID: 10166799] [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] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The costs of workers' compensation have curtailed in recent years, perhaps in part as a result of MCO's efforts in this area. Managed care organizations that consider jumping into the workers' compensation arena often make basic errors in developing their programs and networks. The author reminds MCOs of the practical points they need to consider.
Collapse
Affiliation(s)
- K Wolfe
- Health Management Technologies, Moraga, CA, USA
| |
Collapse
|
32
|
Abstract
Twenty-two paired biopsy specimens of skin and subcutaneous tissue from the proximal and distal halves of the conventional curvilinear incision or carpal tunnel decompression were histologically examined. The specimens were immunohistochemically stained with S100 antibody to highlight the nerve fibers. The mean count of free nerve endings in the proximal biopsy site was 4.42/mm2 (SD, 2.97; range, 1.23-12.27), compared to 4.2/mm2 (SD, 2.71; range, 1.01-10.50) in the distal biopsy specimens. This difference was not statistically significant (p = .20, Wilcoxon's signed ranks [matched pairs] test). The proximal incision site for carpal tunnel decompression did not appear to be more neuroreceptive than the distal incision site, providing no support for the implication of proximal incision sites in proximal scar tenderness.
Collapse
Affiliation(s)
- A Biyani
- Department of Orthopaedics, Arrowe Park Hospital, Upton, United Kingdom
| | | | | | | |
Collapse
|
33
|
Affiliation(s)
- K M Devine
- Department of Genetics, Trinity College, Dublin, Ireland
| | | |
Collapse
|
34
|
Brownell E, Fiorentino L, Jolly G, Wolfe K, Kincaid S, Seperack P, Visco D. Immunolocalization of stromelysin-related protein in murine mast cell granules. Int Arch Allergy Immunol 1995; 107:333-5. [PMID: 7613163 DOI: 10.1159/000237019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- E Brownell
- Miles Research Center, Miles Inc., West Haven, CT 06516, USA
| | | | | | | | | | | | | |
Collapse
|
35
|
Wolfe K, Gosney J, Beesley C. Absence of over-expression of p53 protein in benign and malignant paragangliomas. Oncol Rep 1994; 1:1219-21. [PMID: 21607520 DOI: 10.3892/or.1.6.1219] [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: 11/06/2022] Open
Abstract
Expression of abnormally stable mutant forms of the protein encoded by the gene known as p53 is an extremely common event in human neoplasms, a fact reflecting its crucial role in the regulation of cell turnover. Although widely investigated in a range of tumours from a variety of sites, there do not, to our knowledge, appear to have been any studies of its expression in paragangliomas. Abnormal expression of p53 protein was absent from 15 morphologically typical adrenal (2) and extra-adrenal(13) paragangliomas, 3 were overtly malignant, when sought for using the DO-7 antibody (Dako), whilst colon adenocarcinomas known to abnormally express the protein and used as controls were consistently positive. These results suggest that the mechanism of any dysfunction of the p53 encoding gene in paragangliomas might differ from that in tumours from other sites such that its detectable overexpression does not result.
Collapse
Affiliation(s)
- K Wolfe
- UNIV LIVERPOOL,ROYAL LIVERPOOL UNIV HOSP,DEPT PATHOL,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND. ARROWE PK HOSP,DEPT PATHOL,WIRRAL L49 5PE,MERSEYSIDE,ENGLAND
| | | | | |
Collapse
|
36
|
Potter BJ, Ni JZ, Wolfe K, Stump D, Berk PD. Induction of a dose-related increase in sulfobromophthalein uptake velocity in freshly isolated rat hepatocytes by phenobarbital. Hepatology 1994; 20:1078-85. [PMID: 7927210 DOI: 10.1002/hep.1840200441] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
To determine whether phenobarbital affects hepatocellular bilirubin/sulfobromophthalein uptake mechanism, we administered it to male Sprague-Dawley rats, body weight 175 +/- 25 gm, at doses of 1 to 75 mg/kg body wt/day for 7 days. Control rats were given an equivalent volume of physiological saline solution. On day 8, hepatocytes were isolated by means of collagenase perfusion, suspended in Hanks' solution without albumin and incubated with high specific activity (3 Ci/mmol) [35S]sulfobromophthalein, which was synthesized in our laboratory and purified by means of a new reverse-phase high-pressure liquid chromatography procedure. The initial uptake rate of sulfobromophthalein was determined at sulfobromophthalein concentrations of 1 to 50 mumol/L with a rapid filtration technique. The maximum uptake velocity and Michaelis constant for sulfobromophthalein uptake at each phenobarbital dose were determined by means of a computer analysis. In control studies, maximum uptake and Michaelis constant were 48.0 +/- 16.7 (mean +/- S.D.) pmol/50,000 cells/min and 22 +/- 4 mumol/L, respectively. Maximum uptake velocity increased linearly with the log of the phenobarbital dose (r = 0.98, p < 0.01), the increase achieving statistical significance at a dose of 3 mg/kg/day. Michaelis constant, however, was essentially unchanged at phenobarbital doses of 50 mg/kg/day or less. The maximal observed increase in maximum uptake velocity of sulfobromophthalein (to 619% of control values) was appreciably greater than the maximal increase in UDP-glucuronyltransferase activity (200% of control) or immunoreactive ligandin concentrations (260% of control) seen in earlier studies, suggesting a direct effect on the plasma membrane transport mechanism.
Collapse
Affiliation(s)
- B J Potter
- Department of Medicine (Division of Liver Diseases), Mount Sinai School of Medicine, New York, New York 10029-6574
| | | | | | | | | |
Collapse
|
37
|
Affiliation(s)
- K Wolfe
- Department of Medicine, University Hospital, University of Western Ontario, London, Canada
| | | | | |
Collapse
|
38
|
Natale A, Wathen M, Wolfe K, Yee R, Guiraudon GM, Klein GJ. Comparative atrioventricular node properties after radiofrequency ablation and operative therapy of atrioventricular node reentry. Pacing Clin Electrophysiol 1993; 16:971-7. [PMID: 7685896 DOI: 10.1111/j.1540-8159.1993.tb04570.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The anatomical substrate for atrioventricular (AV) node reentry is unclear. To gain insights into the mechanism of cure of AV node reentry by nonpharmacological techniques, we compared AV node properties in 53 patients undergoing operative therapy (perinodal dissection) and 43 undergoing radiofrequency ablation (28 posterior approach, 15 anterior approach). Anterior radiofrequency ablation was associated with significant AH prolongation (62 +/- 18 msec vs 136 +/- 64 msec, P < 0.0001), loss of "fast" pathway physiology, and no change in the anterograde refractory period of the AV node (273 +/- 24 msec vs 268 +/- 28 msec, P = NS). Posterior radiofrequency ablation did not change the AH interval (67 +/- 17 msec vs 68 +/- 17 msec, P = NS), prolonged AV node effective refractory period (275 +/- 48 msec vs 320 +/- 55 msec, P < 0.0001), and was associated with loss of "slow pathway" physiology. Operative treatment prolonged the AH interval (66 +/- 18 msec vs 83 +/- 37 msec, P < 0.0001) and the AV node effective refractory period (264 +/- 52 msec vs 364 +/- 112 msec, P < 0.0001), and affected dual pathway physiology inconsistently. These data support the view that the "fast" and "slow" pathways are distinct perinodal entities that can be selectively ablated. The operative approach causes more diffuse and variable injury to the AV node region.
Collapse
Affiliation(s)
- A Natale
- Department of Medicine, University of Western Ontario, London, Canada
| | | | | | | | | | | |
Collapse
|
39
|
Abstract
Atrial fibrillation in the Wolff-Parkinson-White syndrome may be related to microreentry in the accessory pathway. If such is the case, catheter ablation of the accessory pathway should eliminate atrial fibrillation. Among 95 patients undergoing catheter ablation, 20 had atrial fibrillation during standard electrophysiologic study (atrial vulnerability) before ablation. There were 16 women and four men with a mean age of 32 years. Before ablation six patients required electrical cardioversion. Thirty minutes after ablation, 11 continued to have inducible atrial fibrillation. Atrial fibrillation terminated spontaneously in every patient after ablation. A control group of 20 patients with accessory pathway ablation had no inducible atrial fibrillation before or after ablation. Catheter ablation had no effect on atrial properties including functional refractory period (227 +/- 37 vs 215 +/- 29 msec before versus after ablation, mean +/- SD) or wavelength (7.4 +/- 3.2 vs 7.2 +/- 2.7 before versus after ablation). These data suggest that an intact accessory pathway is not necessary for initiation of atrial fibrillation in most patients with Wolff-Parkinson-White syndrome. A rapid ventricular response over the accessory pathway may facilitate the perpetuation of atrial fibrillation in persons prone to this arrhythmia.
Collapse
Affiliation(s)
- M Wathen
- Department of Medicine, University of Western Ontario, London, Canada
| | | | | | | | | |
Collapse
|
40
|
Abstract
Radiofrequency ablation of the "slow" pathway of the atrioventricular (AV) node reentrant circuit may be guided by electrophysiologic ("slow pathway potential") or anatomic landmarks. Experience with a systematic, anatomically guided approach in 25 patients (20 women and 5 men, aged 38 +/- 15 years) with typical AV node reentry is described. The slow pathway is assumed to be the posterior input to the AV node, approaching the nodal region in the corridor between the tricuspid annulus and the orifice of the coronary sinus. A series of radiofrequency lesions are given to interrupt this corridor at its entrance to Koch's triangle. If this is unsuccessful, the series of lesions are repeated progressively at higher levels approaching the AV node. The major end point for success is elimination of the slow pathway as determined by extrastimulus testing. A mean of 1.2 +/- 0.2 ablative sessions (20 +/- 12 applications of energy) achieved clinical success in 24 of 25 patients (96%) at a follow-up of 8.6 +/- 2.2 months. Anterograde Wenckebach cycle length increased from 361 +/- 67 ms to 398 +/- 70 ms (p = 0.01), yet the atrio-Hisian interval in sinus rhythm did not change (69 +/- 17 ms before vs 65 +/- 15 ms after ablation), p = 0.22. Retrograde Wenckebach cycle length was not affected (348 +/- 78 ms before vs 366 +/- 82 ms after ablation). During ablation, transient third-degree AV block occurred in 6 patients with no permanent sequelae. This approach provides a systematic, expedient technique to eliminate slow pathway conduction based on anatomic landmarks.
Collapse
Affiliation(s)
- M Wathen
- Department of Medicine, University of Western Ontario, London, Canada
| | | | | | | | | | | |
Collapse
|
41
|
Affiliation(s)
- A Natale
- Department of Medicine, University of Western Ontario, London, Canada
| | | | | | | | | |
Collapse
|
42
|
Wolfe K. Data base or word processing: knowing the difference can make the difference. AAOHN J 1992; 40:194-5. [PMID: 1567512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
43
|
Wolfe K. Computerizing for the Americans with Disabilities Act. AAOHN J 1991; 39:483-4. [PMID: 1834068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
44
|
Gu SA, Ducas J, Wolfe K, Patton JN, Prewitt RM. Coronary thrombolysis with recombinant tissue plasminogen activator. Intracoronary vs intravenous administration. Chest 1991; 100:201-6. [PMID: 1905615 DOI: 10.1378/chest.100.1.201] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [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: 12/29/2022] Open
Abstract
We employed a canine model of coronary thrombosis, induced by injection of radioactive blood clot, via a catheter placed in the left anterior descending coronary artery, to compare effects of recombinant tissue plasminogen activator (rtPA) administered intravenously and administered directly into the coronary circulation. A control group did not receive rtPA. Compared with controls, both rtPA regimens induced coronary thrombolysis. However, compared with intravenous administration, rate and extent of coronary thrombolysis were increased with intracoronary administration. Most likely, the enhanced thrombolysis with intracoronary administration is explained by an increase in delivery of the drug to the thrombus.
Collapse
Affiliation(s)
- S A Gu
- Section of Cardiology, University of Manitoba, Winnipeg, Canada
| | | | | | | | | |
Collapse
|
45
|
Wolfe K. Getting a grip on computerphobia. AAOHN J 1991; 39:352-3. [PMID: 2069617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
46
|
Wolfe K. Revisiting the information technology rationale. AAOHN J 1991; 39:253-4. [PMID: 2025336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
47
|
Wolfe K. Using information to maximize loss control. AAOHN J 1991; 39:40-1. [PMID: 1986750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
48
|
Wolfe K. Using information to optimize case management. AAOHN J 1990; 38:504-6. [PMID: 2222587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
49
|
Wolfe K. Confidentiality and common sense. AAOHN J 1990; 38:338-40. [PMID: 2375800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
50
|
Wolfe K. Computerized information management. Part II: Hardware and software--making the right choice. AAOHN J 1990; 38:243-5. [PMID: 2331253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|