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O’Neill A, Seidman J, Cavagnero K, Li F, Nakatsuji T, Cheng J, Tong Y, Do T, Cau L, Hata T, Modlin R, Gallo R. 349 Functional screening of Cutibacterium acnes isolates reveal determinants of skin inflammation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.362] [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]
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2
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Cavagnero K, Dokoshi T, O'Neill A, Seidman J, Liggins M, Gallo R. 125 Dermal adipocyte precursor immune fibroblastic cells (IFCs) drive neutrophil recruitment in response to bacterial infection. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.131] [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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3
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Zahir A, Staffaroni AM, Wickham RE, Quinn CM, Sapozhnikova A, Seidman J, Chiong W. Caregiver "objective attitude" toward patients with neurodegenerative disease: Consequences for caregiver strain and relationship closeness. Aging Ment Health 2021; 25:1709-1715. [PMID: 32515603 PMCID: PMC7748409 DOI: 10.1080/13607863.2020.1771541] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Many caregivers of patients with neurodegenerative disease experience physical and psychological strain, which is associated with negative health outcomes. Caregiver strain may be partly attributable to negative emotional responses (e.g.of resentment) to the behavioral, cognitive, and physical changes associated with patients' disease. The philosopher Peter Strawson observed that in dealing with people who have neurological impairments, we often choose to suspend such emotional responses, adopting what he labeled the "objective attitude," though this may come at the expense of our relationships with them. In this study, we assessed the mediating effect of caregivers' adoption of the objective attitude on caregiver strain and relationship closeness in the setting of disease progression. Caregivers of patients with neurodegenerative disorders (n = 215) completed the Clinical Dementia Rating, Relationship-Closeness scale, Caregiver Strain Index, and a novel questionnaire assessing the adoption of the objective attitude. A structural equation model assessing associations among these variables demonstrated good fit (χ2 (88)=164.621, p < 0.001; CFI = 0.929, RMSEA = 0.064.) and showed that adoption of the objective attitude mediated the association between disease progression and relationship closeness (total β= -0.233, 95% CI: -0.351, -0.113; indirect β= -0.483, 95% CI: -0.602, -0.364; direct β = 0.250, 95% CI: 0.117, 0.384), but did not mediate the association between disease progression and caregiver strain (total β = 0.323, 95% CI: 0.234, 0.412; indirect β = 0.089, 95% CI: -0.027, 0.206; direct β = 0.153, 95% CI: -0.043, 0.349). For future work, we propose longitudinal measurements of these constructs to test the directionality of associations and consideration of how models for caregiver support can draw upon interdisciplinary insights.
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Affiliation(s)
- Ali Zahir
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, USA
| | - Adam M. Staffaroni
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, USA
| | | | - Carson M. Quinn
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, USA
| | - Anna Sapozhnikova
- Department of Psychiatry, University of California, San Francisco, USA
| | | | - Winston Chiong
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, USA
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4
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Liggins M, O'Neill A, Li F, Seidman J, Chang J, Shafiq F, Hatta T, Gallo R. 215 Reactive adipogenesis in the perifollicular stroma is a component of the host immune response in acne. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Narayan P, Prowell TM, Gao JJ, Fernandes LL, Li E, Jiang X, Qiu J, Fan J, Song P, Yu J, Zhang X, King-Kallimanis BL, Chen W, Ricks TK, Gong Y, Wang X, Windsor K, Rhieu SY, Geiser G, Banerjee A, Chen X, Reyes Turcu F, Chatterjee DK, Pathak A, Seidman J, Ghosh S, Philip R, Goldberg KB, Kluetz PG, Tang S, Amiri-Kordestani L, Theoret MR, Pazdur R, Beaver JA. FDA Approval Summary: Alpelisib Plus Fulvestrant for Patients with HR-positive, HER2-negative, PIK3CA-mutated, Advanced or Metastatic Breast Cancer. Clin Cancer Res 2021. [PMID: 33168657 DOI: 10.1158/1078-0432.ccr-20-3652/78947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
On May 24, 2019, the FDA granted regular approval to alpelisib in combination with fulvestrant for postmenopausal women, and men, with hormone receptor (HR)-positive, HER2-negative, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA)-mutated, advanced or metastatic breast cancer as detected by an FDA-approved test following progression on or after an endocrine-based regimen. Approval was based on the SOLAR-1 study, a randomized, double-blind, placebo-controlled trial of alpelisib plus fulvestrant versus placebo plus fulvestrant. The primary endpoint was investigator-assessed progression-free survival (PFS) per RECIST v1.1 in the cohort of trial participants whose tumors had a PIK3CA mutation. The estimated median PFS by investigator assessment in the alpelisib plus fulvestrant arm was 11 months [95% confidence interval (CI), 7.5-14.5] compared with 5.7 months (95% CI, 3.7-7.4) in the placebo plus fulvestrant arm (HR, 0.65; 95% CI, 0.50-0.85; two-sided P = 0.001). The median overall survival was not yet reached for the alpelisib plus fulvestrant arm (95% CI, 28.1-NE) and was 26.9 months (95% CI, 21.9-NE) for the fulvestrant control arm. No PFS benefit was observed in trial participants whose tumors did not have a PIK3CA mutation (HR, 0.85; 95% CI, 0.58-1.25). The most common adverse reactions, including laboratory abnormalities, on the alpelisib plus fulvestrant arm were increased glucose, increased creatinine, diarrhea, rash, decreased lymphocyte count, increased gamma glutamyl transferase, nausea, increased alanine aminotransferase, fatigue, decreased hemoglobin, increased lipase, decreased appetite, stomatitis, vomiting, decreased weight, decreased calcium, decreased glucose, prolonged activated partial thromboplastin time, and alopecia.
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Affiliation(s)
- Preeti Narayan
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland.
| | - Tatiana M Prowell
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Jennifer J Gao
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Laura L Fernandes
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Emily Li
- Oncology Center of Excellence Summer Scholars Program, Silver Spring, Maryland
| | - Xiling Jiang
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Junshan Qiu
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Jianghong Fan
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Pengfei Song
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Jingyu Yu
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Xinyuan Zhang
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | | | - Wei Chen
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Tiffany K Ricks
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Yutao Gong
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Xing Wang
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Katherine Windsor
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Steve Y Rhieu
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Gerlie Geiser
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Anamitro Banerjee
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Xiaohong Chen
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Francisca Reyes Turcu
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Deb K Chatterjee
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Anand Pathak
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Jeffrey Seidman
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Soma Ghosh
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Reena Philip
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Kirsten B Goldberg
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Paul G Kluetz
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Shenghui Tang
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Laleh Amiri-Kordestani
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Marc R Theoret
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Richard Pazdur
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Julia A Beaver
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
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6
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Gao JJ, Osgood CL, Gong Y, Zhang H, Bloomquist EW, Jiang X, Qiu J, Yu J, Song P, Rahman NA, Chiu HJ, Ricks TK, Rizvi F, Hou S, Wilson W, Abukhdeir AM, Seidman J, Ghosh S, Philip R, Pierce WF, Bhatnagar V, Kluetz PG, Pazdur R, Beaver JA, Amiri-Kordestani L. FDA Approval Summary: Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf Injection for Subcutaneous Use in Patients with HER2-positive Breast Cancer. Clin Cancer Res 2020; 27:2126-2129. [PMID: 33188141 DOI: 10.1158/1078-0432.ccr-20-3474] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/08/2020] [Accepted: 11/09/2020] [Indexed: 11/16/2022]
Abstract
On June 29, 2020, the FDA approved pertuzumab, trastuzumab, and hyaluronidase-zzxf subcutaneous injection (Phesgo) for the treatment of patients with HER2-positive early-stage and metastatic breast cancer. Patients should be selected for therapy based on an FDA-approved companion diagnostic test. Approval was primarily based on the FeDeriCa trial, a randomized, open-label, multicenter comparability study of pertuzumab, trastuzumab, and hyaluronidase-zzxf subcutaneous injection compared with intravenous pertuzumab and intravenous trastuzumab administered in the neoadjuvant and adjuvant settings with chemotherapy for the treatment of patients with early breast cancer. The pharmacokinetic endpoints were, first, to demonstrate that the exposure of subcutaneous pertuzumab was not inferior to that of intravenous pertuzumab, and then to demonstrate that the exposure of subcutaneous trastuzumab was not inferior to that of intravenous trastuzumab. The primary endpoints were met with the observed lower limit of the two-sided 90% confidence intervals above the prespecified noninferiority margins. The most common adverse reactions were alopecia, nausea, diarrhea, anemia, and asthenia. The totality of the evidence demonstrated comparability of the subcutaneous product to intravenous, allowing for extrapolation and approval of all breast cancer indications for which intravenous trastuzumab and pertuzumab are approved.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antibodies, Monoclonal, Humanized/administration & dosage
- Antibodies, Monoclonal, Humanized/adverse effects
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Antineoplastic Combined Chemotherapy Protocols/adverse effects
- Breast Neoplasms/pathology
- Breast Neoplasms/therapy
- Chemotherapy, Adjuvant/adverse effects
- Chemotherapy, Adjuvant/methods
- Drug Administration Schedule
- Drug Approval
- Female
- Humans
- Hyaluronoglucosaminidase/administration & dosage
- Hyaluronoglucosaminidase/adverse effects
- Injections, Subcutaneous
- Middle Aged
- Multicenter Studies as Topic
- Neoadjuvant Therapy/adverse effects
- Neoadjuvant Therapy/methods
- Randomized Controlled Trials as Topic
- Receptor, ErbB-2/analysis
- Receptor, ErbB-2/metabolism
- Trastuzumab/administration & dosage
- Trastuzumab/adverse effects
- Treatment Outcome
- United States
- United States Food and Drug Administration
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Affiliation(s)
- Jennifer J Gao
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland.
| | - Christy L Osgood
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Yutao Gong
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Hui Zhang
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Erik W Bloomquist
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Xiling Jiang
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Junshan Qiu
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Jingyu Yu
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Pengfei Song
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Nam Atiqur Rahman
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Haw-Jyh Chiu
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Tiffany K Ricks
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Fatima Rizvi
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Sherry Hou
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Willie Wilson
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Abde M Abukhdeir
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Jeffrey Seidman
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Soma Ghosh
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Reena Philip
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - William F Pierce
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Vishal Bhatnagar
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Paul G Kluetz
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Richard Pazdur
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Julia A Beaver
- Oncology Center of Excellence, U.S. Food and Drug Administration, Silver Spring, Maryland
| | - Laleh Amiri-Kordestani
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland
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Narayan P, Prowell TM, Gao JJ, Fernandes LL, Li E, Jiang X, Qiu J, Fan J, Song P, Yu J, Zhang X, King-Kallimanis BL, Chen W, Ricks TK, Gong Y, Wang X, Windsor K, Rhieu SY, Geiser G, Banerjee A, Chen X, Reyes Turcu F, Chatterjee DK, Pathak A, Seidman J, Ghosh S, Philip R, Goldberg KB, Kluetz PG, Tang S, Amiri-Kordestani L, Theoret MR, Pazdur R, Beaver JA. FDA Approval Summary: Alpelisib Plus Fulvestrant for Patients with HR-positive, HER2-negative, PIK3CA-mutated, Advanced or Metastatic Breast Cancer. Clin Cancer Res 2020; 27:1842-1849. [DOI: 10.1158/1078-0432.ccr-20-3652] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/19/2020] [Accepted: 11/05/2020] [Indexed: 11/16/2022]
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8
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Dokoshi T, Li F, Liggins M, Williams M, Seidman J, Knight R, Taylor B, Chang J, Olvera J, Gallo R. 226 Skin controls gut immune function through innate immune ECM cross talk. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.231] [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: 10/24/2022]
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Seidman J, Troutman T, Sakai M, Li R, Ouyang Z, Spann N, Bennett H, Bruni C, Vu B, Ego K, Pasillas M, Texari L, Heinz S, Glass C. 264 Interrogating altered enhancer landscapes to decode pathogenic changes in macrophages during chronic inflammatory disease. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.270] [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: 10/24/2022]
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Roberts AM, Ware J, Herman D, Schafer S, Mazzarotto F, Baksi J, Buchan R, Walsh R, John S, Wilkinson S, Felkin L, Bick A, Radke M, Gotthardt M, Barton P, Hubner N, Seidman J, Seidman C, Cook S. C Integrated Allelic, Transcriptional, and Phenotypic Dissection of the Cardiac Effects of Titin Variation in Health and Diseaser. Heart 2015. [DOI: 10.1136/heartjnl-2015-308066.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Roberts A, Ware J, Herman D, Schafer S, Mazzarotto F, Baksi J, Buchan R, Walsh R, John S, Wilkinson S, Felkin L, Bick A, Radke M, Gotthardt M, Barton P, Hubner N, Seidman J, Seidman C, Cook S. 163 Integrated allelic, transcriptional, and phenotypic dissection of the cardiac effects of titin variation in health and disease. Heart 2015. [DOI: 10.1136/heartjnl-2015-308066.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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McGrath M, Seidman J, Nelson M, Lang D, Gratz J, Knobler S, Platts-Mills J, Houpt E. The prevalence of norovirus in the MAL-ED cohort. Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.669] [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] Open
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Hovingh GK, Herman D, Seidman J. Abstract: 121 GENOMIC SELECTION BY HYBRIDIZATION-ENRICHMENT FOR LARGE SCALE SEQUENCING OF GENES IMPLICATED IN HDL METABOLISM. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70241-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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McInerney E, Grills I, Galerani A, Martinez A, Wallace M, Robertson B, Welsh R, Seidman J, Kestin L. Changes in Pulmonary Function and Toxicity after Image Guided Lung Stereotactic Body Radiotherapy (SBRT). Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.1823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Bidus MA, Caffrey AS, You WB, Amezcua CA, Chernofsky MR, Barner R, Seidman J, Rose GS. Cervical biopsy and excision procedure specimens lack sufficient predictive value for lymph-vascular space invasion seen at hysterectomy for cervical cancer. Am J Obstet Gynecol 2008; 199:151.e1-4. [PMID: 18674657 DOI: 10.1016/j.ajog.2008.02.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2007] [Revised: 11/24/2007] [Accepted: 02/08/2008] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The purpose of this study was to determine whether lymph-vascular space invasion (LVSI) that is discovered in cervical biopsy and excision specimens is associated with LVSI in the hysterectomy specimen of patients with cervical cancer. STUDY DESIGN A retrospective pathologic review to determine the presence of LVSI in cervical biopsy specimens, cold-knife cone biopsy (CKC biopsy), and loop electrical excision procedure (LEEP) specimens that contained cervical cancer was performed if subsequent hysterectomy results were available for review. Data were analyzed with chi-square analysis testing. RESULTS One hundred six patients were identified. The negative predictive value of the biopsy is lower at 0.45 than either the CKC biopsy (0.83) or LEEP (0.57); however, the positive predictive value (0.83) is higher than either CKC biopsy (0.50) or LEEP (0.75). LVSI, when present in cervical biopsy (odds ratio, 4.13; 95% CI, 0.414-98.446), CKC biopsy (odds ratio, 4.8; 95% CI, 0.542-46.280), and LEEP (odds ratio, 4.0; 95% CI, 0.439-43.793) specimens, is associated with a statistically insignificant increased risk of LVSI in the hysterectomy specimen. CONCLUSION Cervical biopsy and excision specimens lack sufficient negative predictive value for the detection of LVSI in the hysterectomy specimen.
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Affiliation(s)
- Michael A Bidus
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Walter Reed Army Medical Center, Washington, DC 20307, USA
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16
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Ingles J, Doolan A, Chiu C, Seidman J, Seidman C, Semsarian C. Compound and double mutations in patients with hypertrophic cardiomyopathy: implications for genetic testing and counselling. J Med Genet 2006; 42:e59. [PMID: 16199542 PMCID: PMC1735926 DOI: 10.1136/jmg.2005.033886] [Citation(s) in RCA: 290] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To report the frequency of single and multiple gene mutations in an Australian cohort of patients with hypertrophic cardiomyopathy (HCM). METHODS Genetic screening of seven HCM genes (beta-MHC, MyBP-C, cTnT, cTnI, ACTC, MYL2, and MYL3) was undertaken in 80 unrelated probands. Screening was by denaturing high performance liquid chromatography and direct DNA sequencing. Clinical data were collected on all patients and on genotyped family members. RESULTS 26 mutations were identified in 23 families (29%). Nineteen probands (24%) had single mutations (11 beta-MHC, 4 MyBP-C, 3 cTnI, 1 cTnT). Multiple gene mutations were identified in four probands (5%): one had a double mutation and the others had compound mutations. Six of 14 affected individuals from multiple mutation families (43%) experienced a sudden cardiac death event, compared with 10 of 55 affected members (18%) from single mutation families (p = 0.05). There was an increase in septal wall thickness in patients with compound mutations (mean (SD): 30.7 (3.1) v 24.4 (7.4) mm; p<0.05). CONCLUSIONS Multiple gene mutations occurring in HCM families may result in a more severe clinical phenotype because of a "double dose" effect. This highlights the importance of screening the entire panel of HCM genes even after a single mutation has been identified.
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17
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Gensure RC, Mäkitie O, Barclay C, Chan C, DePalmer S, Bastepe M, Abuzahra H, Couper R, Seidman J, Cole WG, Jüppner H. 108 A NOVEL COL1A1 MUTATION IN INFANTILE CORTICAL HYPEROSTOSIS (CAFFEY DISEASE) EXPANDS THE SPECTRUM OF COLLAGEN-RELATED DISORDERS. J Investig Med 2005. [DOI: 10.2310/6650.2005.00006.107] [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: 11/18/2022]
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18
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Keogh IJ, Godinho RN, Wu TP, Diaz de Palacios AM, Palacios N, Bello de Alford M, De Almada MI, MarPalacios N, Vazquez A, Mattei R, Seidman C, Seidman J, Eavey RD. Clinical and genetic linkage analysis of a large Venezuelan kindred with Usher syndrome. Int J Pediatr Otorhinolaryngol 2004; 68:1063-8. [PMID: 15236894 DOI: 10.1016/j.ijporl.2004.04.005] [Citation(s) in RCA: 1] [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] [Received: 11/04/2003] [Revised: 03/28/2004] [Accepted: 04/02/2004] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To undertake a comprehensive investigation into the very high incidence of congenital deafness on the Macano peninsula of Margarita Island, Venezuela. METHODS Numerous visits were made to the isolated island community over a 4-year-period. During these visits, it became apparent that a significant number of individuals complained of problems with hearing and vision. Socioeconomic assessments, family pedigrees and clinical histories were recorded on standard questionnaires. All individuals underwent thorough otolaryngologic and ophthalmologic examinations. Twenty milliliters of peripheral venous blood was obtained from each participant. A genome-wide linkage analysis study was performed. Polymorphic microsatellite markers were amplified by polymerase chain reaction and separated on polyacrylamide gels. An ABI 377XL sequencer was used to separate fragments and LOD scores were calculated by using published software. RESULTS Twenty-four families were identified, comprising 329 individuals, age range 1-80 years, including 184 children. All families were categorized in the lower two (least affluent) socioeconomic categories. A high incidence of consanguinity was detected. Fifteen individuals (11 adults, 4 children) had profound congenital sensorineural hearing loss, vestibular areflexia and retinitis pigmentosa. A maximum LOD score of 6.76 (Linkage >3.0), between markers D11s4186 and D11s911, confirmed linkage to chromosome 11q13.5. The gene myosin VIIA (MYO7A) was confirmed in the interval. Clinical and genetic findings are consistent with a diagnosis of Usher syndrome 1B for those with hearing and vision problems. CONCLUSIONS We report 15 Usher syndrome 1B individuals from a newly detected Latin American socio-demographic origin, with a very high prevalence of 76 per 100,000 population.
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Affiliation(s)
- Ivan J Keogh
- Department of Otolaryngology, Division of Pediatric Otolaryngology, Massachusetts Eye & Ear Infirmary, Boston, USA.
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19
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Kogulan PK, Smith M, Seidman J, Chang G, Tsokos M, Lucey D. Malakoplakia involving the abdominal wall, urinary bladder, vagina, and vulva: case report and discussion of malakoplakia-associated bacteria. Int J Gynecol Pathol 2001; 20:403-6. [PMID: 11603228 DOI: 10.1097/00004347-200110000-00016] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A 29-year-old woman presented with a 3-month history of multiple purulent discharging nodules involving her lower abdomen, vulva, and left thigh. Physical examination also disclosed vaginal nodules and a left pelvic mass. Cystoscopy revealed multiple mucosal nodules and a perforation of the left vesical wall that appeared to communicate with the pelvic mass. Biopsies of the vesical and vulvar nodules revealed malakoplakia. Surgery and antibiotic therapy resulted in regression of all the lesions.
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Affiliation(s)
- P K Kogulan
- Department of Infectious Diseases, Washington Hospital Center, 110 Irving Street, NW, Washington, DC 20010, USA
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20
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Krivak TC, McBroom JW, Seidman J, Venzon D, Crothers B, MacKoul PJ, Rose GS, Carlson JW, Birrer MJ. Abnormal fragile histidine triad (FHIT) expression in advanced cervical carcinoma: a poor prognostic factor. Cancer Res 2001; 61:4382-5. [PMID: 11389064] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
The FHIT gene is a candidate tumor suppressor gene that has been implicated in the development of cervical carcinoma. We hypothesized that abnormal Fhit expression might be a poor prognostic factor for patients with cervical cancer. The tumors from 59 high-risk patients (stage II-III) were evaluated for abnormal Fhit expression by immunohistochemical staining. Abnormal Fhit expression (absent or reduced) was noted in 66% of the specimens. There was no statistical difference with respect to stage, performance status, para-aortic node metastasis, completion of therapy, grade, race, age, and HIV status between the normal and abnormal Fhit expression groups. The 3-year survival for patients whose tumors displayed normal Fhit expression versus abnormal Fhit expression was 74% versus 37%, respectively. Univariate analysis demonstrated a difference in survival that was statistically significant for age <55 years versus > or =55 years (P = 0.015), normal Fhit expression versus abnormal Fhit expression (P = 0.015), and stage II versus stage III (P = 0.033). Multivariate analysis showed that abnormal Fhit expression was a poor prognostic factor (P = 0.015).
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Affiliation(s)
- T C Krivak
- Walter Reed Army Medical Center, Washington, D.C. 20307, USA
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21
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Lee TH, Cleeman JI, Grundy SM, Gillett C, Pasternak RC, Seidman J, Sennett C. Clinical goals and performance measures for cholesterol management in secondary prevention of coronary heart disease. JAMA 2000; 283:94-8. [PMID: 10632286 DOI: 10.1001/jama.283.1.94] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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: 11/14/2022]
Abstract
Guidelines from the National Cholesterol Education Program (NCEP) recommend reduction of low-density lipoprotein cholesterol (LDL-C) to 100 mg/dL (2.59 mmol/L) or less in patients with established coronary heart disease (CHD). However, the National Committee for Quality Assurance (NCQA) is implementing a new performance measure as part of the Health Plan Employer and Data Information Set (HEDIS) that appears to endorse a different target. The new HEDIS measure will require managed care organizations seeking NCQA accreditation to measure and report the percentage of patients who have had major CHD events who achieve LDL-C levels less than 130 mg/dL (3.36 mmol/L) between 60 and 365 days after discharge. These different LDL-C thresholds emphasize the difference between a clinical goal for the management of individual patients (< or =100 mg/dL) and a performance measure used to evaluate the care of a population of patients (<130 mg/dL). This article discusses the rationale for each threshold and explains the use of 2 different thresholds for these 2 purposes. Both the NCQA and NCEP expect that the new HEDIS measure will encourage managed care organizations to develop systems that improve secondary prevention of CHD.
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Affiliation(s)
- T H Lee
- Partners Community Health-Care Inc, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02199, USA.
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22
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Zhuo M, Zhang W, Son H, Mansuy I, Sobel RA, Seidman J, Kandel ER. A selective role of calcineurin aalpha in synaptic depotentiation in hippocampus. Proc Natl Acad Sci U S A 1999; 96:4650-5. [PMID: 10200317 PMCID: PMC16387 DOI: 10.1073/pnas.96.8.4650] [Citation(s) in RCA: 138] [Impact Index Per Article: 5.5] [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: 11/18/2022] Open
Abstract
Pharmacological studies have suggested that long-term potentiation (LTP) and long-term depression (LTD) and depotentiation, three forms of synaptic plasticity in the hippocampus, require the activity of the phosphatase calcineurin. At least two different isoforms of calcineurin are found in the central nervous system. To investigate whether all of these forms of synaptic plasticity require the same isoforms of calcineurin, we have examined LTD, depotentiation, and LTP in mice lacking the predominant calcineurin isoform in the central nervous system, Aalpha-/- mice. Depotentiation was abolished completely whereas neither LTD nor LTP were affected. These studies provide genetic evidence that the Aalpha isoform of calcineurin is important for the reversal of LTP in the hippocampus and indicate that depotentiation and LTD operate through somewhat different molecular mechanisms.
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Affiliation(s)
- M Zhuo
- Howard Hughes Medical Institute, Columbia University, New York, NY 10032, USA
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23
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Major ME, Mihalik K, Fernandez J, Seidman J, Kleiner D, Kolykhalov AA, Rice CM, Feinstone SM. Long-term follow-up of chimpanzees inoculated with the first infectious clone for hepatitis C virus. J Virol 1999; 73:3317-25. [PMID: 10074186 PMCID: PMC104096 DOI: 10.1128/jvi.73.4.3317-3325.1999] [Citation(s) in RCA: 120] [Impact Index Per Article: 4.8] [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: 11/20/2022] Open
Abstract
Two chimpanzees (Ch1535 and Ch1536) became infected with hepatitis C virus (HCV) following intrahepatic inoculation with RNA transcribed from a full-length cDNA clone of the virus. Both animals were persistently infected and have been followed for 60 weeks. They showed similar responses to infection, with transient liver enzyme elevations and liver inflammatory responses, which peaked at weeks 17 (Ch1535) and 12 (Ch1536) postinoculation (p.i.). Antibody responses to structural and nonstructural proteins were first detected at weeks 13 (Ch1535) and 10 (Ch1536) p.i. Serum RNA titers increased steadily during the first 10 to 13 weeks but decreased sharply in both animals following antibody and inflammatory responses. Despite direct evidence of humoral immune responses to multiple viral antigens, including hypervariable region 1 (HVR1), both animals remained chronically infected. Detailed sequence analysis of serum HCV RNA revealed no change in the majority HVR1 sequence in Ch1535 and a single-amino-acid mutation in Ch1536, with very little clonal variation in either animal. Full-length genome analysis at week 60 revealed several amino acid substitutions localized to antigens E1, E2, p7, NS3, and NS5. Of these, 55.6 and 40% were present as the majority sequence in serum RNA isolated at week 26 p.i. (Ch1535) and week 22 p.i. (Ch1536), respectively, and could represent immune escape mutations. Mutations accumulated at a rate of 1.57 x 10(-3) and 1.48 x 10(-3) nucleotide substitutions/site/year for Ch1535 and Ch1536, respectively. Taken together, these data indicate that establishment of a persistent HCV infection in these chimpanzees is not due to changes in HVR1; however, the possibility remains that mutations arising in other parts of the genome contributed to this persistence.
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Affiliation(s)
- M E Major
- Laboratory of Hepatitis Research, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892, USA
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24
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Potter H, Ma J, Li J, Geller L, Kayyali U, Zhon H, Xu M, Zhang SS, Nilsson P, Dressler D, Zhang W, Seidman J. 760 Involvement of ACT, apoE, AD3/PS-1, AD4/PS-2, trisomy 21, and calcineurin in the development of amyloid deposits, neurofibrillary tangles and neurodegeneration in Alzheimer's disease. Neurobiol Aging 1996. [DOI: 10.1016/s0197-4580(96)80762-7] [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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26
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Legg R, Sykes E, Karcher R, Kiechle F, Seidman J. Increased PO2 measured in a patient with type II cryoglobulinemia. Clin Chem 1995; 41:760. [PMID: 7729058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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27
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Boon LM, Mulliken JB, Vikkula M, Watkins H, Seidman J, Olsen BR, Warman ML. Assignment of a locus for dominantly inherited venous malformations to chromosome 9p. Hum Mol Genet 1994; 3:1583-7. [PMID: 7833915 DOI: 10.1093/hmg/3.9.1583] [Citation(s) in RCA: 164] [Impact Index Per Article: 5.5] [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: 01/27/2023] Open
Abstract
Venous malformation is the most common type of vascular anomaly. Depending upon size and location, these slow-flow anomalies may cause pain, anatomic distortion, or threaten life. Most venous malformations occur sporadically and present as solitary lesions. They also occur in several syndromes, some of which demonstrate Mendelian inheritance. We have mapped the locus for an autosomal dominant disorder in a three generation family that manifests as multiple cutaneous and mucosal venous malformations. This locus lies within a 24 cM interval on chromosome 9p, defined by the markers D9S157 and D9S163. The alpha and beta interferon gene cluster and the putative tumor suppressor genes MTS1 and MTS2 are also in this region. Characterization of the gene responsible for this disorder should yield insights into the precise pathogenic mechanisms for venous malformations.
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Affiliation(s)
- L M Boon
- Division of Plastic Surgery, Children's Hospital, Boston, MA
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28
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Healy WL, Seidman J, Pfeifer BA, Brown DG. Cold compressive dressing after total knee arthroplasty. Clin Orthop Relat Res 1994:143-6. [PMID: 7907012] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The efficacy of a cold compressive dressing after total knee arthroplasty (TKA) was prospectively studied in 105 knees in 76 patients. All components were cemented. All patients were placed in continuous passive motion machines after operation. A cold compressive Cryocuff dressing was applied to 50 knees after operation. An ACE wrap and ice pack were applied to the knees of 55 control patients after operation. Postoperative range of motion was recorded as maximum active flexion at two to four days (interval one), at seven to 14 days (interval two), and four to six weeks (interval three). Swelling was measured at the same time intervals by circumference at the midpatella and circumference at the distal thigh one inch proximal to the superior pole of the patella. Use of postoperative narcotics was calculated for postoperative days zero to three and for postoperative days four to seven. Wound drainage was recorded for all knees. The use of a cold compressive dressing after TKA was not associated with an increase in range of motion at any point after the operation. The Cryocuff dressing did not appreciably reduce swelling around the knee after TKA. No significant difference was found in the amount of postoperative wound drainage between the two groups of patients. In patients undergoing unilateral TKA, no significant difference existed between the narcotic requirements of control patients and patients wearing the cold compressive dressing.
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Affiliation(s)
- W L Healy
- Department of Orthopaedic Surgery, Lahey Clinic Medical Center, Burlington, Massachusetts 01805
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29
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Abstract
Eighty-nine A1 pulleys from 65 patients with trigger digits and 20 control A1 pulleys from fresh-frozen cadavers were studied comparatively with histology, immunohistochemistry, and transmission electron microscopy. In both normal and pathologic specimens, the A1 pulley was composed of two layers: an outer, vascularized, convex layer and an inner, concave, friction, flexor tendon gliding layer. In the latter, the cells and adjacent matrix had several characteristics of fibrocartilage, including chondrocytes. In trigger digits, the number of chondrocytes and adjacent extracellular matrix was significantly increased when compared with controls. There was no evidence of a synovial cell layer on the surface of the A1 pulleys in either normal or trigger digits. We conclude that the underlying pathobiological mechanism for triggering at the A1 pulley is characterized by a fibrocartilage metaplasia.
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Affiliation(s)
- S P Sampson
- Department of Orthopaedics, School of Medicine, State University of New York, Stony Brook 11794-8181
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31
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Goorha R, Bunin N, Mirro J, Murphy SB, Cross AH, Behm FG, Quertermous T, Seidman J, Kitchingman GR. Provocative pattern of rearrangements of the genes for the gamma and beta chains of the T-cell receptor in human leukemias. Proc Natl Acad Sci U S A 1987; 84:4547-51. [PMID: 2955409 PMCID: PMC305127 DOI: 10.1073/pnas.84.13.4547] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
To examine the distribution of rearrangements of the gamma- and beta-chain T-cell receptor (TCR) genes in T- and non-T acute lymphoblastic leukemias (ALLs), and potentially to determine which genes rearrange first in ontogeny, we analyzed high molecular weight DNA from 102 patients with acute leukemia. Rearranged gamma- and beta-chain genes were found in all T-cell ALLs (22/22) examined. Overall, 27% (18/66) of B-lineage ALLs had beta-chain gene rearrangements, and 41% (24/58) had gamma-chain gene rearrangements, but the distribution of rearranged genes varied according to the stage of B-cell differentiation. The gamma-chain genes were rearranged in 11% (1/9) of the B-lineage patients negative for the common acute lymphoblastic leukemia antigen (cALLA) and 50% (23/46) of cALLA+ ALL patients, while the beta-chain genes were not rearranged in any of the 7 cALLA- ALL patients examined but were rearranged in 32% (18/56) of the cALLA+ patients. Neither TCR gene was found to be rearranged in acute nonlymphoid leukemia patients (0/12) or in patients with B-cell (surface immunoglobulin-positive) leukemia (0/3). Of the 44 cALLA+ patients in which a direct comparison of gamma- and beta-chain gene rearrangements could be made, 34% had both genes rearranged, 16% had only gamma-chain gene rearrangements, and the remaining 50% had both genes in the germ-line configuration. beta-Chain rearrangements have not been found in the absence of gamma-chain rearrangements, thus supporting a proposed hierarchy of TCR gene rearrangements. A provocative finding was that only a small percentage (11%) of the patients with cALLA- B precursor cell ALLs had rearranged TCR genes, while 50% of the cALLA+ leukemia patients had at least gamma-chain rearrangement, raising a question as to whether indeed cALLA- cells are precursors to cALLA+ cells. Interestingly, 18% (2/11) of the cytoplasmic immunoglobulin (cIg)-positive cALLA+ (pre-B) ALLs involved TCR gene rearrangements, compared to 60% (21/35) of the cIg-negative cases, suggesting the possibility that the majority of functional B cells are derived from the cALLA+ pool that contains immunoglobulin but not TCR gene rearrangements.
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MESH Headings
- Adolescent
- Antigens, Neoplasm/analysis
- B-Lymphocytes/pathology
- Cell Differentiation
- Child
- DNA, Neoplasm/genetics
- Humans
- Leukemia, Lymphoid/classification
- Leukemia, Lymphoid/genetics
- Leukemia, Lymphoid/pathology
- Neprilysin
- Peptide Fragments/genetics
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell, alpha-beta
- Receptors, Antigen, T-Cell, gamma-delta
- T-Lymphocytes/pathology
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Leiden JM, Dialynas DP, Duby AD, Murre C, Seidman J, Strominger JL. Rearrangement and expression of T-cell antigen receptor genes in human T-lymphocyte tumor lines and normal human T-cell clones: evidence for allelic exclusion of Ti beta gene expression and preferential use of a J beta 2 gene segment. Mol Cell Biol 1986; 6:3207-14. [PMID: 3491297 PMCID: PMC367057 DOI: 10.1128/mcb.6.9.3207-3214.1986] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The gene encoding the beta chain of the human T-cell receptor for antigen is composed of variable (V), diversity (D), joining (J), and constant (C) gene segments which undergo specific rearrangements during T-lymphocyte ontogeny. Southern blot analyses of seven human T-cell tumor lines and normal human T-lymphocyte clones revealed that most of these T-cell lines rearrange their Ti beta genes differently. The T-cell tumor line HPB-MLT rearranges and transcribes both of its Ti beta genes. Cloning and sequencing of the Ti beta cDNAs corresponding to these rearrangements revealed that one of the rearranged Ti beta genes is defective, while the other is functional and corresponds to the Ti beta protein expressed on the surface of these cells. Thus, this cell line displays a pattern of allelic exclusion of Ti beta gene expression. A comparison of four C beta 2-containing Ti beta cDNAs from three different cell lines revealed that three of the four utilize the same J beta 2.5 gene segment joined to different D beta and V beta genes, suggesting that there may be preferential use of this J gene during J beta 2 rearrangements. Hybridization analyses with probes for the alpha and beta genes of the T-cell receptor and the T-cell-specific T gamma gene revealed that HPB-MLT cells appear to express approximately equivalent amounts of RNA corresponding to each of the rearranged Ti alpha and Ti beta genes. However, they express a much lower level of T gamma RNA.
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Medeiros LJ, Shimizu M, Legg M, Seidman J, Katayama I. Primary nodular lymphoma of the lung. Immunoperoxidase and ultrastructural studies. Acta Pathol Jpn 1982; 32:835-42. [PMID: 6753481 DOI: 10.1111/j.1440-1827.1982.tb03198.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In two patients, primary nodular lymphomas of the lung which presented incidentally were diagnosed following routine chest radiography, exploratory thoracotomy, and the application of histologic criteria. The diagnoses were confirmed using the peroxidase-antiperoxidase (PAP) technique and transmission electron microscopy. Whereas most investigators had demonstrated intracytoplasmic immunoglobulins in only the large cells of nodular lymphomas using the standard PAP method, we were able to prove the presence of monoclonal immunoglobulin within the cytoplasm of both the large cells and small cells using a modification of the PAP technique as described by DeLellis. This modification uses very dilute antisera and a prolonged incubation time and is more highly sensitive and specific. Monoclonal immunoglobulin was also shown to be within the cytoplasm of mature plasma cells observed within the interfollicular areas. This monoclonal immunoglobulin was the same as that seen within the cytoplasm of the small and large cells of each respective lymphoma. Electron microscopy permitted the identification of three cell types within each patient's tumor: small cells, large cells, and dendritic reticulum cells((DRCs). The finding of the DRCs, presently considered a residual marker of the germinal center, is supporting evidence that both lymphomas studied were nodular lymphomas of B cell derivation.
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Swan D, D'Eustachio P, Leinwand L, Seidman J, Keithley D, Ruddle FH. Chromosomal assignment of the mouse kappa light chain genes. Proc Natl Acad Sci U S A 1979; 76:2735-9. [PMID: 111241 PMCID: PMC383683 DOI: 10.1073/pnas.76.6.2735] [Citation(s) in RCA: 84] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mouse-hamster somatic cell hybrids containing a variable number of mouse chromosomes have been used in experiments to determine which mouse chromosome carries the immunoglobulin kappa light chain genes. It has been shown by nucleic acid hybridization that the kappa constant gene and the genes for at least one variable region subgroup are on mouse chromosome 6. This somatic cell genetic mapping procedure appears to be general and can be applied to any expressed or silent gene for which an appropriate nucleic acid probe exists.
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35
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Maxian S, Seidman J, Cormier PP. Dentistry takes an interest in the developmentally disabled. Bull Phila Cty Dent Soc 1978; 44:7. [PMID: 16149378] [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: 05/04/2023]
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Leder P, Honjo T, Seidman J, Swan D. Origin of immunoglobulin gene diversity: the evidence and a restriction-modification model. Cold Spring Harb Symp Quant Biol 1977; 41 Pt 2:855-62. [PMID: 408082 DOI: 10.1101/sqb.1977.041.01.095] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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37
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Sompolinsky D, Seidman J. [Chemical and biological weapons]. Harefuah 1970; 79:231-232. [PMID: 5496974] [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: 05/21/2023]
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Seidman J. Professionals and economic security. The trend among health professionals today. Am J Hosp Pharm 1969; 26:642-4. [PMID: 5352572] [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: 01/14/2023]
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