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Cwintal M, Shih H, Idrissi Janati A, Gigliotti J. The effect of the COVID-19 pandemic on the diagnosis and progression of oral cancer. Int J Oral Maxillofac Surg 2024:S0901-5027(24)00036-5. [PMID: 38395689 DOI: 10.1016/j.ijom.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/21/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024]
Abstract
The COVID-19 pandemic placed a significant burden on healthcare resources, limiting care to emergent and essential services only. The objective of this study was to describe the effect of the COVID-19 pandemic on the diagnosis and progression of oral cancer lesions in Montreal, Canada. A retrospective analysis of health records was performed. Patients presenting for a new oncology consultation for an oral lesion suspicious for cancer between March 2018 and March 2022, within the Department of Oral and Maxillofacial Surgery of the McGill University Health Center, were included. Data was collected on sociodemographic characteristics, oral cancer risk behaviors of study participants, oral cancer delays, tumor characteristics, and clinical management. A total of 190 patients were included, 91 patients from the pre-pandemic period and 99 from the pandemic period. The demographic characteristics of the patients in the two periods were comparable. There was no significant difference in the patient, professional, or treatment delay between the two periods. There was a non-significant increase in pathologic tumor size during the pandemic, but the pathologic staging and postoperative outcomes were comparable to those of the pre-pandemic cohort. The results indicate that emergent care pathways for oral cancer treatment were efficiently maintained despite the pandemic shutdown of services.
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Affiliation(s)
- M Cwintal
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
| | - H Shih
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada; Department of Oral and Maxillofacial Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - A Idrissi Janati
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada; Department of Oral and Maxillofacial Surgery, McGill University Health Centre, Montreal, QC, Canada; The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - J Gigliotti
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada; Department of Oral and Maxillofacial Surgery, McGill University Health Centre, Montreal, QC, Canada.
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Shih H, Chen KC. Response to the Letter to the Editor regarding "Gland-sparing neck dissection: oncological and functional outcomes in oral cancer patients". Int J Oral Maxillofac Surg 2023; 52:1107-1108. [PMID: 36868893 DOI: 10.1016/j.ijom.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 03/05/2023]
Affiliation(s)
- H Shih
- Department of Dentistry, Division of Oral and Maxillofacial Surgery, China Medical University Hospital, Taichung, Taiwan
| | - K-C Chen
- Division of Oral and Maxillofacial Surgery, Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; School of Dentistry, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Shih H, Huang JS, Huang TT, Wong TY, Chen MY, Chen KC. Gland-sparing neck dissection: oncological and functional outcomes in oral cancer patients. Int J Oral Maxillofac Surg 2023; 52:825-830. [PMID: 36517308 DOI: 10.1016/j.ijom.2022.11.013] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 12/14/2022]
Abstract
This study was performed to evaluate the subjective and objective functional outcomes of patients who had undergone submandibular gland-sparing neck dissection. All data were obtained from patients treated in a single hospital. Seventy-seven patients who had undergone complete submandibular gland sparing (CSGS) were included in the study. Cancer prognosis items were recorded. The subjective outcomes included patient self-evaluation of mouth dryness and the evaluation of the presence of saliva secretion following the application of digital pressure. Saliva scintigraphy served as the objective test. Self-reported xerostomia was compared between the CSGS patients and a control group of patients who had undergone unilateral submandibular gland removal (USGR; n = 74). In the CSGS group, local recurrence occurred in 3.8% of the 80 cancer sites, and neck recurrence occurred in 5.9% of neck dissection sites. Regarding the subjective measurements, 7.0% of the CSGS patients reported xerostomia and 91.9% demonstrated saliva secretion by digital pressure. Scintigraphy revealed actively secreting glands, with 42.9% of them showing normal gland function; none of the patients had severe xerostomia. The relative risk of dry mouth was significantly higher in the USGR patients than in the CSGS patients (P < 0.001). Submandibular gland sparing during neck dissection was found to result in satisfactory saliva secretion, with a relatively small risk of local or neck recurrence.
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Affiliation(s)
- H Shih
- Department of Dentistry, Division of Oral and Maxillofacial Surgery, China Medical University Hospital, Taichung, Taiwan
| | - J-S Huang
- Division of Oral and Maxillofacial Surgery, Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Dentistry, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - T-T Huang
- Division of Oral and Maxillofacial Surgery, Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Dentistry, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - T-Y Wong
- Division of Oral and Maxillofacial Surgery, Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Dentistry, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - M-Y Chen
- Division of Oral and Maxillofacial Surgery, Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Dentistry, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - K-C Chen
- Division of Oral and Maxillofacial Surgery, Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Dentistry, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Kirschner M, Topkara V, Ning Y, Kurlansky P, Kaku Y, Naka Y, Shih H, Yuzefpolskaya M, Colombo P, Sayer G, Uriel N, Takeda K. Comparing Long-Term Survival and Readmissions Between Heartmate 3 and Heart Transplant as Primary Treatment for Advanced Heart Failure. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Gumuser E, Sharif Z, Ho R, Allison J, Aitelli A, Bussiere M, Shih H, Mela T. Effect of proton radiation therapy on cardiovascular implantable electronic devices [CIED]. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The number of cancer patients with CIED receiving radiotherapy has increased dramatically with improving life expectancy in both patients with cardiovascular disease and cancer. The advent of proton therapy adds new concern for potential malfunction in CIED devices, both due to significant neutron scatter and its use of strong magnets to focus radiation beams. Therefore, we aimed to assess the incidence of CIED malfunction secondary to proton therapy in this patient cohort.
Methods
We retrospectively analyzed patients with CIED undergoing proton therapy at our institute between 2011–2021. Each device was programmed pre-treatment and monitored post-treatment according to a special protocol developed in our centre. Treatments were prescribed to doses up to 70 Gy (RBE) and delivered using either passive-scattering or pencil beam techniques. Distances between the CIED and treated volumes ranged from 10–50 cm. We analyzed baseline patient demographics, CIED demographics, CIED outcomes pre-proton therapy as well as post-proton therapy including device reset and requirement for replacement, analyzing up to most recent check.
Results
Fifty-one patients with CIED underwent proton therapy during the study period. Estimated neutron dose ranged from 0.05–2.0 mSv/GyRBE for this patient cohort. Baseline demographics outlines in table 1. Of note 26/51 patients underwent proton therapy for ophthalmic malignancies, 6/51 for brain/skull malignancies. CIED comprised of 39 pacemakers and 12 implantable cardioverter defibrillators. Fourteen patients were pacemaker-dependent. Using 95% Confidence Interval, ventricular threshold, impedance, and amplitude, as well as atrial threshold and amplitude were unchanged, whereas atrial impedance measurements had a change pre- and post-proton therapy (Table 2). No patients had a device reset. One patient had a premature battery depletion three months post-radiotherapy for pancreatic cancer.
Conclusions
Our findings suggest that proton therapy does not significantly impact CIED function. Whilst caution remains as further data is accrued, close monitoring, particularly with the advent of remote monitoring, of these patients should be recommended.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- E Gumuser
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
| | - Z Sharif
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
| | - R Ho
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
| | - J Allison
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
| | - A Aitelli
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
| | - M Bussiere
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
| | - H Shih
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
| | - T Mela
- Massachusetts General Hospital - Harvard Medical School , Boston , United States of America
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Mondellini G, Shih H, Ning Y, Ladanyi A, Antler K, Murphy J, Feldman V, Leahy N, Kim A, Naka Y, Sayer G, Uriel N, Kurlansky P, Takeda K, Yuzefpolskaya M, Colombo P. Impact of Race and Ethnicity on Readmissions After HeartMate 3 (HM3) Implantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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7
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Shih H, Mondellini G, Kurlansky P, Ning Y, Feldman V, Tiburcio M, Leahy N, Ladanyi A, Kim A, Naka Y, Sayer G, Uriel N, Colombo P, Yuzefpolskaya M, Takeda K. Frequency of Unplanned Hospital Readmissions and Impact on Survival in HeartMate3 (HM3) Patients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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8
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Shih H, Ning Y, Kurlansky P, Melehy A, Kaku Y, Topkara V, Yuzefpolskaya M, Colombo P, Sayer G, Uriel N, Naka Y, Takeda K. Causes and Temporal Patterns of Hospital Readmissions after Implantation of the HeartMate 3 Left Ventricular Assist Device: A Comparison with HeartMate II. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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9
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Shih H, Chen C. 321 Severe Metabolic Acidosis Was Associated With Unfavorable Neurological Outcome in Patients With Out-of-Hospital Cardiac Arrest. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.326] [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]
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10
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Chang Y, Chen C, Shih H, Chen W. 51 The Association Between Unexpected Cardiac Arrest and Crowding of Emergency Department. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.056] [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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11
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Hu F, Hsu H, Shih H, Chen C, Chang C. CHANGING FROM APPROPRIATE TO INAPPROPRIATE URINARY CATHETER USE AMONG HOSPITALIZED OLDER PATIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- F. Hu
- National Cheng Kung University Hospital, Tainan, Taiwan,
| | - H. Hsu
- National Cheng Kung University Hospital, Tainan, Taiwan,
| | - H. Shih
- National Cheng Kung University Hospital, Tainan, Taiwan,
| | - C. Chen
- Chang Jung Christian University, Tainan, Taiwan
| | - C. Chang
- National Cheng Kung University Hospital, Tainan, Taiwan,
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Geng X, Hwang J, Ye J, Shih H, Coulter B, Naudin C, Jun K, Sievers R, Yeghiazarians Y, Lee RJ, Boyle AJ. Aging is protective against pressure overload cardiomyopathy via adaptive extracellular matrix remodeling. Am J Cardiovasc Dis 2017; 7:72-82. [PMID: 28695053 PMCID: PMC5498818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/09/2017] [Indexed: 06/07/2023]
Abstract
When challenged by hemodynamic stress, aging hearts respond differently to young hearts. Preclinical models of heart disease should take into account the effects of age. However, in the transverse aortic constriction (TAC) model of pressure-overload cardiomyopathy, the larger aorta of aging mice has not previously been taken into account. First, we studied the aortic size in mice, and found that the aortic cross-sectional area (CSA) is 28% larger in aging mice than in young adult mice (P=0.001). We then performed TAC to make the same proportional reduction in CSA in young and aging mice. This produced the same pressure gradient across the constriction and the same rise in B-type natriuretic peptide expression. Young mice showed acute deterioration in systolic function assessed by pressure-volume loops, progressive LV remodeling on echocardiography, and a 50% mortality at 12 weeks post-TAC. In contrast, aging mice showed no acute deterioration in systolic function, much less ventricular remodeling and were protected from death. Aging mice also showed significantly increased levels of matrix metalloproteinase-3 (MMP-3; 3.2 fold increase, P<0.001) and MMP-12 (1.5-fold increase, P<0.001), which were not seen in young mice. Expression of tissue inhibitor of MMP-1 (TIMP-1) increased 8.6-fold in aging hearts vs 4.3-fold in young hearts (P<0.01). In conclusion, following size-appropriate TAC, aging mice exhibit less LV remodeling and lower mortality than young adult mice. This is associated with induction of protective ECM changes.
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Affiliation(s)
- Xiaoyong Geng
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
- Department of Cardiology, The Third Hospital of Hebei Medical UniversityChina
| | - Joy Hwang
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
| | - Jianqin Ye
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
- Edyth and Eli Broad Center for Regenerative Medicine and Stem Cell ResearchUSA
| | - Henry Shih
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
| | - Brianna Coulter
- Faculty of Health and Medicine, University of NewcastleAustralia
| | - Crystal Naudin
- Cardiovascular Research Institute, University of California San FranciscoSan Francisco, CA, USA
| | - Kristine Jun
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
| | - Richard Sievers
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
| | - Yerem Yeghiazarians
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
- Edyth and Eli Broad Center for Regenerative Medicine and Stem Cell ResearchUSA
| | - Randall J Lee
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
- Edyth and Eli Broad Center for Regenerative Medicine and Stem Cell ResearchUSA
- Cardiovascular Research Institute, University of California San FranciscoSan Francisco, CA, USA
| | - Andrew J Boyle
- Department of Medicine, Division of Cardiology, University of California San FranciscoSan Francisco, CA, USA
- Edyth and Eli Broad Center for Regenerative Medicine and Stem Cell ResearchUSA
- Faculty of Health and Medicine, University of NewcastleAustralia
- Hunter Medical Research InstituteNewcastle, Australia
- Department of Cardiovascular Medicine, John Hunter HospitalNewcastle, Australia
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Kobayashi T, Truong A, Shih H, Doebel T, Voisin B, Woodring T, Sohn S, Kennedy E, Jo J, Moro K, Leonard W, Kong H, Nagao K. 604 Spatial heterogeneity and functional diversity of innate lymphoid cells in the skin. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Geng X, Ye J, Yeghiazarians Y, Shih H, Hwang J, Sievers R, Palasubramaniam J, Palasubramaniam D, Whitbourn R, Jenkins A, Wilson AM, Boyle A. Myocardial Production and Release of Stem Cell Factor Following Myocardial Infarction. J BIOMATER TISS ENG 2017. [DOI: 10.1166/jbt.2017.1543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yan S, Depauw N, Flanz J, Adams J, Gorissen BL, Shih H, Bortfeld T, Lu H. SU-F-T-207: Does the Greater Flexibility of Pencil Beam Scanning Reduce the Need for a Proton Gantry? Med Phys 2016. [DOI: 10.1118/1.4956345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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16
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Geng C, Daartz J, Cheung K, Bussiere M, Shih H, Paganetti H, Schuemann J. SU-F-T-157: Physics Considerations Regarding Dosimetric Accuracy of Analytical Dose Calculations for Small Field Proton Therapy: A Monte Carlo Study. Med Phys 2016. [DOI: 10.1118/1.4956293] [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: 11/07/2022] Open
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17
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Smith J, Bible P, Baysac K, Shih H, Duverger O, Kellett M, Morasso M. 410 The application of ATAC-seq to murine keratinocytes in the elucidation of the role of DLX3 in epidermal differentiation. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.444] [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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Affiliation(s)
- H. Shih
- Human-Computer Interaction Multimedia Laboratory; Department of Electrical Engineering; Yuan Ze University; Taoyuan Taiwan
- The Innovation Center for Big Data and Digital Convergence; Yuan Ze University; Taoyuan Taiwan
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Unkelbach J, Bussiere M, Shih H, Chapman P, Loeffler J. TH-EF-BRD-10: Spatiotemporal Dose Shaping to Achieve Uniform Fractionation in Healthy Tissues Along with Hypo-Fractionation in Targets. Med Phys 2015. [DOI: 10.1118/1.4926297] [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: 11/07/2022] Open
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Kapur NK, Paruchuri V, Majithia A, Esposito M, Shih H, Weintraub A, Kiernan M, Pham DT, Denofrio D, Kimmelstiel C. Hemodynamic effects of standard versus larger-capacity intraaortic balloon counterpulsation pumps. J Invasive Cardiol 2015; 27:182-188. [PMID: 25840400] [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: 06/04/2023]
Abstract
OBJECTIVE Several recent trials have examined the clinical utility of intraaortic balloon counterpulsation pumps (IABPs) in cardiogenic shock and acute coronary syndromes. More recently, a larger-capacity 50 cc IABP was introduced into practice. No data comparing the hemodynamic effects of the 40 cc vs 50 cc IABP exist. Our aim was to explore the hemodynamic effects of the 50 cc IABP in real-world clinical practice. METHODS Demographic, hemodynamic, and laboratory data were retrospectively examined in 26 consecutive subjects treated with a 50 cc IABP and compared with 26 patients receiving a 40 cc IABP between 2012 and 2013. IABP tracings were analyzed within 24 hours of implantation in all patients. Pulmonary artery catheter data were available before and after IABP implantation in 20 subjects. RESULTS Baseline demographics, including body surface area, were similar between groups. Compared with the 40 cc IABP group, 50 cc IABP recipients showed higher augmented diastolic blood pressure, greater systolic unloading, and a larger reduction in pulmonary capillary occlusion pressure (PCOP). Percent diastolic augmentation was higher among 50 cc IABP recipients. Only 58% of subjects achieved <10 mm Hg of systolic unloading in the 40 cc group compared with 27% in the 50 cc group. For both the 40 cc and 50 cc IABPs, the magnitude of systolic unloading correlated inversely with PCOP and directly with the magnitude of diastolic augmentation. CONCLUSION In real-world practice, greater systolic unloading and diastolic augmentation were observed among 50 cc vs 40 cc IABP recipients. Future trials evaluating the clinical utility of the 50 cc IABP are required.
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Affiliation(s)
- Navin K Kapur
- Tufts University School of Medicine, Division of Cardiology, Boston, MA, USA.
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Wu C, Hsieh P, Fan Jiang J, Shih H, Chen C, Hu C. A positive bacterial culture from allograft bone at implantation does not correlate with subsequent surgical site infection. Bone Joint J 2015; 97-B:427-31. [DOI: 10.1302/0301-620x.97b3.34600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Fresh-frozen allograft bone is frequently used in orthopaedic surgery. We investigated the incidence of allograft-related infection and analysed the outcomes of recipients of bacterial culture-positive allografts from our single-institute bone bank during bone transplantation. The fresh-frozen allografts were harvested in a strict sterile environment during total joint arthroplasty surgery and immediately stored in a freezer at -78º to -68º C after packing. Between January 2007 and December 2012, 2024 patients received 2083 allografts with a minimum of 12 months of follow-up. The overall allograft-associated infection rate was 1.2% (24/2024). Swab cultures of 2083 allografts taken before implantation revealed 21 (1.0%) positive findings. The 21 recipients were given various antibiotics at the individual orthopaedic surgeon’s discretion. At the latest follow-up, none of these 21 recipients displayed clinical signs of infection following treatment. Based on these findings, we conclude that an incidental positive culture finding for allografts does not correlate with subsequent surgical site infection. Additional prolonged post-operative antibiotic therapy may not be necessary for recipients of fresh-frozen bone allograft with positive culture findings. Cite this article: Bone Joint J 2015;97-B:427–31.
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Affiliation(s)
- C. Wu
- Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - P. Hsieh
- Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | | | - H. Shih
- Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - C. Chen
- Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - C. Hu
- Chang Gung Memorial Hospital, Taoyuan, Taiwan
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22
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Chang KC, Chuang TL, Ji WF, Chang CH, Peng YY, Shih H, Hsu CL, Yeh JM, Tang WC, Su YC. UV-curable nanocasting technique to prepare bioinspired superhydrophobic organic-inorganic composite anticorrosion coatings. EXPRESS POLYM LETT 2015. [DOI: 10.3144/expresspolymlett.2015.15] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Johnson AM, Bjarnason H, Shields R, Shih H, McBane R, De Martino RR. Removal of floating inferior vena cava thrombus with the AngioVac device. Vasc Med 2014; 20:190-2. [DOI: 10.1177/1358863x14562659] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | | | | | - Henry Shih
- Internal Medicine, Mayo Clinic, Rochester, MN, USA
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Shih H, Sherman J, Nachtigall L, Colvin M, Fullerton B, Winrich B, Batchelor T, Thornton L, Daartz J, Mancuso S, Oh K, Curry W, Loeffler J, Yeap B. AT-52 * PROSPECTIVE EARLY RESULTS OF LOW GRADE GLIOMA PATIENTS TREATED WITH PROTON THERAPY. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou237.51] [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
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Boyle AJ, Hwang J, Ye J, Shih H, Jun K, Zhang Y, Fang Q, Sievers R, Yeghiazarians Y, Lee RJ. The effects of aging on apoptosis following myocardial infarction. Cardiovasc Ther 2014; 31:e102-10. [PMID: 24279384 DOI: 10.1111/1755-5922.12043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 11/27/2022] Open
Abstract
BACKGROUND Aging is associated with higher incidence of heart failure and death following myocardial infarction (MI). The molecular and cellular changes that lead to these worse outcomes are not known. METHODS AND RESULTS Young and aging mice underwent induction of MI by LAD ligation. There was a significant increase in mortality in the aging mice. Neither the young nor aging hearts after MI had inducible ventricular tachycardia. Cardiomyocyte apoptosis increases early after MI in young and aging mice, but to a much greater degree in the aging mice. Caspase inhibition with Ac-DEVD-CHO resulted in a 61% reduction in activated caspase-3 and an 84% reduction in apoptosis in cardiomyocytes in young mice (P < 0.05), but not in aging mice. Gene pathway profiling demonstrated activation of both the caspase and Map3k1/Mapk10 pathways in aging mice following MI, which may contribute to their resistance to caspase inhibition. CONCLUSIONS Aging hearts activate distinct apoptotic pathways have more cardiomyocyte apoptosis and are resistant to antiapoptotic therapies following MI. Novel or combination approaches may be required to improve outcomes in aging patients following MI.
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Affiliation(s)
- Andrew J Boyle
- Department of Medicine, Division of Cardiology, University of California San Francisco, San Francisco, CA, USA; Edyth and Eli Broad Center for Regenerative Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA, USA
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Abstract
A man in his late 60s presented with symptoms for a few months of itching and head ache after shower. Physical examination was unremarkable except for ruddy complexion and splenomegaly. Complete blood count showed haemoglobin of 18.1 g/dL and haematocrit of 56.6%. To rule out secondary causes of erythrocytosis, such as congenital heart disease with a right to left shunt, a transthoracic echocardiogram was performed, which showed normal left ventricular function with an apical area of dyskinesis and a large left ventricular apical thrombus measuring 3.0 cm×2.0 cm. Further laboratory investigations showed low erythropoietin level and Jak V617F mutation consistent with the diagnosis of polycythemia vera. He was treated with aspirin, enoxaparin, phlebotomy and hydroxyurea with no reported complications during the stay.
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Zhu M, Warmerdam G, Steininger P, Neuner M, Sharp G, Shih H, Winey B. SU-E-J-22: Implementation and Validation of a 2D-3D Rigid Registration Algorithm for Proton Gantry and Stereotactic Radiosurgery Systems. Med Phys 2013. [DOI: 10.1118/1.4814234] [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: 11/07/2022] Open
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Unkelbach J, Dittmann F, Menze B, Konukoglu E, Shih H. SU-E-T-486: Evaluation of the Fisher-Kolmogorov Glioma Growth Model for Radiotherapy Target Delineation. Med Phys 2013. [DOI: 10.1118/1.4814919] [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: 11/07/2022] Open
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Koskenvuo JW, Sievers RE, Zhang Y, Angeli FS, Lee B, Shih H, Ye J, Boyle AJ, Yeghiazarians Y. Fractionation of mouse bone-marrow cells limits functional efficacy in non-reperfused mouse model of acute myocardial infarction. Ann Med 2012; 44:829-35. [PMID: 22494088 DOI: 10.3109/07853890.2012.672026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Clinical trials of bone-marrow (BM)-derived cells for therapy after acute myocardial infarct (MI) have been controversial. The most commonly used cells for these trials have been mononuclear cells (MNC), obtained by fractionation of BM cells (BMCs) via different protocols. In this study, we performed a head-to-head comparison of: 1) whole BMC; 2) fractionated BM (fBM) using the commonly used Ficoll protocol; 3) the extract derived from the fBM (fBM extract) versus 4) saline (HBSS) control for treatment of acute MI. METHODS In total, 155 male C57BL/6J (10-12-week old) mice were included. Echocardiography was performed at baseline and 2 days after permanent ligation of the left anterior descending artery to induce MI. Echocardiography and histology were employed to measure outcome at 28 days post-MI. RESULTS Whole BMC therapy improved left ventricular ejection fraction (LVEF) post-MI, but fBM or fBM extract was not beneficial compared to control (change of LVEF of 4.9% ±4.6% (P = 0.02), -0.4% ±5.8% (P = 0.86), -2.0% ±6.2% (P = 0.97) versus -1.4% ±5.3%, respectively). The histological infarct size or numbers of arterioles or capillaries at infarct or border zone did not differ between the groups. CONCLUSIONS Clinical studies should be performed to test whether whole BMC therapy translates into better outcome also after human MI.
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Affiliation(s)
- Juha W Koskenvuo
- Division of Cardiology, Department of Medicine, University of California , San Francisco, San Francisco, CA, USA.
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Park CK, Kim YH, Kim JW, Kim TM, Choi SH, Kim YJ, Choi BS, Lee SH, Kim CY, Kim IH, Lee DZ, Kheder A, Forbes M, Craven I, Hadjivassiliou M, Shonka NA, Kessinger A, Aizenberg MR, Weller M, Meisner C, Platten M, Simon M, Nikkhah G, Papsdorf K, Sabel M, Braun C, Reifenberger G, Wick W, Alexandru D, Haghighi B, Muhonen MG, Chamberlain MC, Sumrall AL, Burri S, Brick W, Asher A, Murillo-Medina K, Guerrero-Maldonado A, Ramiro AJ, Cervantes-Sanchez G, Erazo-Valle-Solis AA, Garcia-Navarro V, Sperduto PW, Shanley R, Luo X, Kased N, Sneed PK, Roberge D, Chao S, Weil R, Suh J, Bhatt A, Jensen A, Brown PD, Shih H, Kirkpatrick J, Gaspar LE, Fiveash J, Chiang V, Knisely J, Sperduto CM, Lin N, Mehta MP, Anderson MD, Raghunathan A, Aldape KD, Fuller GN, Gilbert MR, Robins HI, Wang M, Gilbert MR, Chakravarti A, Grimm S, Penas-Prado M, Chaudhary R, Anderson PJ, Elinzano H, Gilbert RA, Mehta M, Aoki T, Ueba T, Arakawa Y, Miyatake SI, Tsukahara T, Miyamoto S, Nozaki K, Taki W, Matsutani M, Shakur SF, Bit-Ivan E, Watkin WG, Farhat HI, Merrell RT, Zwinkels H, Dorr J, Kloet A, Taphoorn MJ, Vecht CJ, Bogdahn U, Stockhammer G, Mahapatra A, Hau P, Schuknecht B, van den Bent M, Heinrichs H, Yust-Katz S, Liu V, Sanghee K, Groves M, Puduvalli V, Levin V, Conrad C, Colman H, Hsu S, Yung AW, Gilbert MR, Kunz M, Armbruster L, Thon N, Jansen N, Lutz J, Herms J, Egensperger R, Eigenbrod S, Kretzschmar H, La CF, Tonn JC, Kreth FW, Brandes AA, Franceschi E, Agati R, Poggi R, Dall'Occa P, Bartolotti M, Di Battista M, Marucci G, Girardi F, Ermani M, Sherman W, Raizer J, Grimm S, Ruckser R, Tatzreiter G, Pfisterer W, Oberhauser G, Honigschnabel S, Aboul-Enein F, Ausch C, Kitzweger E, Hruby W, Sebesta C, Green RM, Woyshner EA, Suchorska B, Jansen NL, Janssen H, Kretzschmar H, Simon M, Hentschel B, Poepperl G, Kreth FW, Linn J, LaFougere C, Weller M, Tonn JC, Suchorska B, Jansen NL, Graute V, Eigenbrod S, Bartenstein P, Kreth FW, LaFougere C, Tonn JC, Hassanzadeh B, Tohidi V, Levacic D, Landolfi JC, Singer S, DeBraganca K, Omuro A, Grommes C, Omar AI, Jalan P, Pandav V, Bekker S, Fuente MIDL, Kaley T, Zhao S, Chen X, Soffietti R, Magistrello M, Bertero L, Bosa C, Crasto SG, Garbossa D, Lolli I, Trevisan E, Ruda R, Ruda R, Bertero L, Bosa C, Trevisan E, Pace A, Carapella C, Dealis C, Caroli M, Faedi M, Bomprezzi C, Thomas AA, Dalmau J, Gresa-Arribas N, Fadul CE, Kumthekar PU, Raizer J, Grimm S, Herrada J, Antony N, Richards M, Gupta A, Landeros M, Arango C, Campos-Gines AF, Friedman P, Wilson H, Streeter JC, Cohen A, Gilreath J, Sageser D, Ye X, Bell SD, McGregor J, Bourekas E, Cavaliere R, Newton H, Sul J, Odia Y, Zhang W, Shih J, Butman JA, Hammoud D, Kreisl TN, Iwamoto F, Fine HA, Berriel LG, Santos FN, Levy AC, Fanelli MF, Chinen LT, da Costa AA, Bourekas E, Wayne Slone H, Bell SD, McGregor J, Bokstein F, Blumenthal DT, Shpigel S, Phishniak L, Yust-Katz S, Garciarena P, Liue D, Yuan Y, Groves MD, Wong ET, Villano JL, Engelhard HH, Ram Z, Sahebjam S, Millar BA, Sahgal A, Laperriere N, Mason W, Levin VA, Hess KR, Choucair AK, Flynn PJ, Jaeckle KA, Kyritsis AP, Yung WKA, Prados MD, Bruner JM, Ictech S, Nghiemphu PL, Lai A, Green RM, Cloughesy TF, Zaky W, Gilles F, Grimm J, Bluml S, Dhall G, Rosser T, Randolph L, Wong K, Olch A, Krieger M, Finlay J, Capellades J, Verger E, Medrano S, Gonzalez S, Gil M, Reynes G, Ribalta T, Gallego O, Segura PP, Balana C, Gwak HS, Joo J, Kim S, Yoo H, Shin SH, Han JY, Kim HT, Yun T, Lee JS, Lee SH, Kim W, Vogelbaum MA, Wang M, Peereboom DM, Macdonald DR, Giannini C, Suh JH, Jenkins RB, Laack NN, Brackman DG, Shrieve DC, Souhami L, Mehta MP, Leibetseder A, Wohrer A, Ackerl M, Flechl B, Sax C, Spiegl-Kreinecker S, Pichler J, Widhalm G, Dieckmann K, Preusser M, Marosi C, Sebastian C, Alejandro M, Bernadette C, Naomi A, Kavan P, Sahebjam S, Garoufalis E, Guiot MC, Muanza T, Del Maestro R, Petrecca K, Sharma R, Curry R, Joyce J, Rosenblum M, Jaffe E, Matasar M, Lin O, Fisher R, Omuro A, Yin C, Iwamoto FM, Fraum TJ, Nayak L, Diamond EL, DeAngelis LM, Pentsova E, Vera-Bolanos E, Gilbert MR, Aldape K, Necesito-Reyes MJ, Fouladi M, Gajjar A, Goldman S, Metellus P, Mikkelsen T, Omuro A, Packer R, Partap S, Pollack IF, Prados M, Ian Robins H, Soffietti R, Wu J, Armstrong TS, Nakada M, Hayashi Y, Miyashita K, Kinoshita M, Furuta T, Sabit H, Kita D, Hayashi Y, Uchiyam N, Kawakami K, Minamoto T, Hamada JI, Diamond EL, Rosenblum M, Heaney M, Carrasquillo J, Krauthammer A, Nolan C, Kaley TJ, Gil MJ, Fuster J, Balana C, Benavides M, Mesia C, Etxaniz O, Canellas J, Perez-Martin X, Hunter K, Johnston SK, Bridge CA, Rockne RC, Guyman L, Baldock AL, Rockhill JK, Mrugala MM, Beard BC, Adair JE, Kiem HP, Swanson KR, Ranjan T, Desjardins A, Peters KB, Alderson L, Kirkpatrick J, Herndon J, Bailey L, Sampson J, Friedman AH, Friedman H, Vredenburgh JJ, Theeler BJ, Ellezam B, Melguizo-Gavilanes I, Shonka NA, Bruner JM, Puduvalli VK, Taylor JW, Flanagan E, O'Neill B, Seigal T, Omuro A, DeAngelis L, Baerhing J, Hoang-Xuan K, Chamberlain M, Batchelor T, Nishikawa R, Pinto F, Blay JY, Korfel A, Schiff D, Fu BD, Kong XT, Bota D, Omuro A, Beal K, Ivy P, Gutin P, Wu N, Kaley T, Karimi S, DeAngelis L, Pentsova H, Nolan C, Grommes C, Chan T, Mathew R, Droms L, Shimizu F, Tabar V, Grossman S, Yovino S, Campian J, Wild A, Herman J, Brock M, Balmanoukian A, Ye X, Portnow J, Badie B, Synold T, Lacey S, D'Apuzzo M, Frankel P, Chen M, Aboody K, Letarte N, Gabay MP, Bressler LR, Stachnik JM, Villano JL, Jaeckle KA, Anderson SK, Willson A, Moreno-Aspitia A, Colon-Otero G, Patel T, Perez E, Peters KB, Reardon DA, Vredenburgh JJ, Desjardins A, Herndon JE, Coan A, McSherry F, Lipp E, Brickhouse A, Massey W, Friedman HS, Alderson LM, Desjardins A, Ranjan T, Peters KB, Friedman HS, Vredenburgh JJ, Ranjan T, Desjardins A, Peters KB, Alderson L, Kirkpatrick J, Herndon J, Bailey L, Sampson J, Friedman AH, Friedman H, Vredenburgh J, Welch MR, Omuro A, Grommes C, Westphal M, Bach F, Reuter D, Ronellenfitsch M, Steinbach J, Pietsch T, Connelly J, Hamza MA, Puduvalli V, Neal ML, Trister AD, Ahn S, Bridge C, Lange J, Baldock A, Rockne R, Mrugala M, Rockhill JK, Lai A, Cloughesy T, Swanson KR, Neuwelt AJ, Nguyen TM, Tyson RM, Nasseri M, Neuwelt EA, Bubalo JS, Barnes PD, Phuphanich S, Hu J, Rudnick J, Chu R, Yu J, Naruse R, Ljubimova J, Sanchez C, Guevarra A, Naor R, Black K, Mahta A, Bhavsar TM, Herath K, Huang C, McClain J, Rizzo K, Sheehan J, Chamberlain M, Glantz M, McClain J, Glantz MJ, Zoccoli C, Nicholas MK, Xie T, White D, Liker S, Gajewski T, Selfridge J, Piccioni DE, Zurayk M, Mody R, Quan J, Li S, Chen W, Chou A, Liau L, Green R, Cloughesy T, Lai A, Gomez-Molinar V, Ruiz-Gonzalez S, Valdez-Vazquez R, Arrieta O, Stenner JI. CLIN-NEURO/MEDICAL ONCOLOGY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Unkelbach J, Menze B, Konukoglu E, Motamedi A, Ayache N, Shih H. SU-C-BRB-05: Accounting for Anisotropic Growth of Glioma in Radiotherapy Planning. Med Phys 2012. [DOI: 10.1118/1.4734622] [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: 11/07/2022] Open
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Verburg J, Shih H, Seco J. MO-A-213AB-06: Validation of Nuclear Reaction Models to Simulate Proton Therapy Range Verification Using Prompt Gamma-Rays. Med Phys 2012; 39:3860. [DOI: 10.1118/1.4735758] [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: 11/07/2022] Open
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Min C, Zhu X, Grogg K, Winey B, Fakhri G, Bortfeld T, Shih H, Paganetti H. MO-A-213AB-07: Evaluation of Distal Dose Surface with In-Room PET for Proton Therapy Monitoring. Med Phys 2012; 39:3860. [DOI: 10.1118/1.4735759] [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: 11/07/2022] Open
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Ye J, Boyle A, Shih H, Sievers RE, Zhang Y, Prasad M, Su H, Zhou Y, Grossman W, Bernstein HS, Yeghiazarians Y. Sca-1+ cardiosphere-derived cells are enriched for Isl1-expressing cardiac precursors and improve cardiac function after myocardial injury. PLoS One 2012; 7:e30329. [PMID: 22272337 PMCID: PMC3260268 DOI: 10.1371/journal.pone.0030329] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Accepted: 12/13/2011] [Indexed: 12/28/2022] Open
Abstract
Background Endogenous cardiac progenitor cells are a promising option for cell-therapy for myocardial infarction (MI). However, obtaining adequate numbers of cardiac progenitors after MI remains a challenge. Cardiospheres (CSs) have been proposed to have cardiac regenerative properties; however, their cellular composition and how they may be influenced by the tissue milieu remains unclear. Methodology/Principal Finding Using “middle aged” mice as CSs donors, we found that acute MI induced a dramatic increase in the number of CSs in a mouse model of MI, and this increase was attenuated back to baseline over time. We also observed that CSs from post-MI hearts engrafted in ischemic myocardium induced angiogenesis and restored cardiac function. To determine the role of Sca-1+CD45- cells within CSs, we cloned these from single cell isolates. Expression of Islet-1 (Isl1) in Sca-1+CD45- cells from CSs was 3-fold higher than in whole CSs. Cloned Sca-1+CD45- cells had the ability to differentiate into cardiomyocytes, endothelial cells and smooth muscle cells in vitro. We also observed that cloned cells engrafted in ischemic myocardium induced angiogenesis, differentiated into endothelial and smooth muscle cells and improved cardiac function in post-MI hearts. Conclusions/Significance These studies demonstrate that cloned Sca-1+CD45- cells derived from CSs from infarcted “middle aged” hearts are enriched for second heart field (i.e., Isl-1+) precursors that give rise to both myocardial and vascular tissues, and may be an appropriate source of progenitor cells for autologous cell-therapy post-MI.
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Affiliation(s)
- Jianqin Ye
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
| | - Andrew Boyle
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, California, United States of America
| | - Henry Shih
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
| | - Richard E. Sievers
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
| | - Yan Zhang
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
| | - Megha Prasad
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
| | - Hua Su
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, California, United States of America
| | - Yan Zhou
- Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, California, United States of America
| | - William Grossman
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, California, United States of America
| | - Harold S. Bernstein
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, California, United States of America
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, California, United States of America
- Department of Pediatrics, University of California San Francisco, San Francisco, California, United States of America
| | - Yerem Yeghiazarians
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, California, United States of America
- * E-mail:
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Boyle AJ, Yeghiazarians Y, Shih H, Hwang J, Ye J, Sievers R, Zheng D, Palasubramaniam J, Palasubramaniam D, Karschimkus C, Whitbourn R, Jenkins A, Wilson AM. Myocardial production and release of MCP-1 and SDF-1 following myocardial infarction: differences between mice and man. J Transl Med 2011; 9:150. [PMID: 21910857 PMCID: PMC3180393 DOI: 10.1186/1479-5876-9-150] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Accepted: 09/12/2011] [Indexed: 12/27/2022] Open
Abstract
Background Stem cell homing to the heart is mediated by the release of chemo-attractant cytokines. Stromal derived factor -1 alpha (SDF-1a) and monocyte chemotactic factor 1(MCP-1) are detectable in peripheral blood after myocardial infarction (MI). It remains unknown if they are produced by, and released from, the heart in order to attract stem cells to repair the damaged myocardium. Methods Murine hearts were studied for expression of MCP-1 and SDF-1a at day 3 and day 28 following myocardial infarction to determine whether production is increased following MI. In addition, we studied the coronary artery and coronary sinus (venous) blood from patients with normal coronary arteries, stable coronary artery disease (CAD), unstable angina and MI to determine whether these cytokines are released from the heart into the systemic circulation following MI. Results Both MCP-1 and SDF-1a are constitutively produced and released by the heart. MCP-1 mRNA is upregulated following murine experimental MI, but SDF-1a is suppressed. There is less release of SDF-1a into the systemic circulation in patients with all stages of CAD including MI, mimicking the animal model. However MCP-1 release from the human heart following MI is also suppressed, which is the exact opposite of the animal model. Conclusions SDF-1a and MCP-1 release from the human heart are suppressed following MI. In the case of SDF-1a, the animal model appropriately reflects the human situation. However, for MCP-1 the animal model is the exact opposite of the human condition. Human observational studies like this one are paramount in guiding translation from experimental studies to clinical trials.
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Affiliation(s)
- Andrew J Boyle
- Department of Medicine, Division of Cardiology, University of California San Francisco, USA.
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Huang CY, Shih H, Lin LY, Cheng WC, Wong CH, Ma C. Crystal structure of Staphylococcus aureusMGT in complex with a lipid II analog. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311088088] [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: 11/10/2022] Open
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Singh K, Sarfehnia A, Tomic N, Liang L, Deblois F, Seuntjens J, Lewis D, Shih H, Devic S. MO-F-214-04: Protoyping Compositions of Novel Radiochromic Film Types: Towards Complete Absorbed Dose Energy Independence. Med Phys 2011. [DOI: 10.1118/1.3613017] [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: 11/07/2022] Open
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Unkelbach J, Menze B, Konukoglu E, Shih H, Ayache N, Bortfeld T. WE-G-BRA-06: Radiotherapy Planning for Glioma Based on a Computational Tumor Growth Model. Med Phys 2011. [DOI: 10.1118/1.3613411] [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: 11/07/2022] Open
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Shih H, Lee B, Lee RJ, Boyle AJ. The aging heart and post-infarction left ventricular remodeling. J Am Coll Cardiol 2011; 57:9-17. [PMID: 21185495 DOI: 10.1016/j.jacc.2010.08.623] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 08/17/2010] [Accepted: 08/24/2010] [Indexed: 12/28/2022]
Abstract
Aging is a risk factor for heart failure, which is a leading cause of death world-wide. Elderly patients are more likely than young patients to experience a myocardial infarction (MI) and are more likely to develop heart failure following MI. The poor clinical outcome of aging in cardiovascular disease is recapitulated on the cellular level. Increase in stress exposure and shifts in signaling pathways with age change the biology of cardiomyocytes. The progressive accumulation of metabolic waste and damaged organelles in cardiomyocytes blocks the intracellular recycling process of autophagy and increases the cell's propensity toward apoptosis. Additionally, the decreased cardiomyocyte renewal capacity in the elderly, due to reduction in cellular division and impaired stem cell function, leads to further cardiac dysfunction and maladaptive responses to disease or stress. We review the cellular and molecular aspects of post-infarction remodeling in the aged heart, and relate them to the clinical problem of post-infarction remodeling in elderly patients.
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Affiliation(s)
- Henry Shih
- Department of Medicine, Division of Cardiology, University of California San Francisco, San Francisco, California 94143, USA
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Boyle AJ, Shih H, Hwang J, Ye J, Lee B, Zhang Y, Kwon D, Jun K, Zheng D, Sievers R, Angeli F, Yeghiazarians Y, Lee R. Cardiomyopathy of aging in the mammalian heart is characterized by myocardial hypertrophy, fibrosis and a predisposition towards cardiomyocyte apoptosis and autophagy. Exp Gerontol 2011; 46:549-59. [PMID: 21377520 DOI: 10.1016/j.exger.2011.02.010] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 01/25/2011] [Accepted: 02/15/2011] [Indexed: 11/16/2022]
Abstract
Aging is associated with an increased incidence of heart failure, but the existence of an age-related cardiomyopathy remains controversial. Differences in strain, age and technique of measuring cardiac function differ between experiments, confounding the interpretation of these studies. Additionally, the structural and genetic profile at the onset of heart failure has not been extensively studied. We therefore performed serial echocardiography, which allows repeated assessment of left ventricular (LV) function, on a cohort of the same mice every 3 months as they aged and demonstrated that LV systolic dysfunction becomes apparent at 18 months of age. These aging animals had left ventricular hypertrophy and fibrosis, but did not have inducible ventricular tachyarrhythmias. Gene expression profiling of left ventricular tissue demonstrated 40 differentially expressed probesets and 36 differentially expressed gene ontology terms, largely related to inflammation and immunity. At this early stage of cardiac dysfunction, we observed increased cardiomyocyte expression of the pro-apoptotic activated caspase-3, but no actual increase in apoptosis. The aging hearts also have higher levels of anti-apoptotic and autophagic factors, which may have rendered protection from apoptosis. In conclusion, we describe the functional, structural and genetic changes in murine hearts as they first develop cardiomyopathy of aging.
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Affiliation(s)
- Andrew J Boyle
- Department of Medicine, Division of Cardiology, University of California San Francisco, San Francisco, CA 94143, United States.
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Andronesi O, Seco J, Shih H, Sorensen G. TH-C-204C-02: Advanced MR Spectroscopy Methods for Studying Metabolism and Radiation Treatment Response in Brain Tumors. Med Phys 2010. [DOI: 10.1118/1.3469504] [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: 11/07/2022] Open
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Seco J, Hong T, Shih H. TH-C-204C-01: A Physicist Perspective of the Use of MRI and Spectroscopy for In-Vivo Verification of Photon and Proton Beam Therapy. Med Phys 2010. [DOI: 10.1118/1.3469503] [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: 11/07/2022] Open
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Yeghiazarians Y, Khan M, Angeli FS, Zhang Y, Jahn S, Prasad M, Mirsky R, Shih H, Minasi P, Boyle A, Grossman W. Cytokine combination therapy with long-acting erythropoietin and granulocyte colony stimulating factor improves cardiac function but is not superior than monotherapy in a mouse model of acute myocardial infarction. J Card Fail 2010; 16:669-78. [PMID: 20670846 DOI: 10.1016/j.cardfail.2010.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 03/09/2010] [Accepted: 03/10/2010] [Indexed: 01/02/2023]
Abstract
BACKGROUND Erythropoietin (EPO) and granulocyte colony stimulating factor (GCSF) are potential novel therapies after myocardial infarction (MI). We first established the optimal and clinically applicable dosages of these drugs in mobilizing hematopoietic stem cells (HSC), and then tested the efficacy of monotherapy and combination therapy post-MI. METHODS AND RESULTS Optimal doses were established in enhanced green fluorescent protein (eGFP) + chimeric mice (n = 30). Next, mice underwent MI and randomized into 4 groups (n = 18/group): 1) GCSF; 2) EPO; 3) EPO+GCSF; and 4) control. Left ventricular (LV) function was analyzed pre-MI, at 4 hours and at 28 days post-MI. Histological assessment of infarct size, blood vessels, apoptotic cardiomyocytes, and engraftment of eGFP+ mobilized cells were analyzed at day 28. LV function in the control group continued to deteriorate, whereas all treatments showed stabilization. The treatment groups resulted in less scarring, increased numbers of mobilized cells to the infarct border zone (BZ), and a reduction in the number of apoptotic cardiomyocytes. Both EPO groups had significantly more capillaries and arterioles at the BZ. CONCLUSION We have established the optimal doses for EPO and GCSF in mobilizing HSC from the bone marrow and demonstrated that therapy with these agents, either as monotherapy or combination therapy, led to improvement of cardiac function post-MI. Combination therapy does not seem to have additive benefit over monotherapy in this model.
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Affiliation(s)
- Yerem Yeghiazarians
- Division of Cardiology, Department of Medicine, University of California, San Francisco, San Francisco, California 94143-0103, USA.
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Martone R, Meehan J, Xu J, Mercado M, Staal R, Hubbell A, Kubek K, Nawoschik S, Das I, Shih H, Dunlop J, Pangalos M, Reinhart P. P3.007 Modeling synucleinopathies: intracellular delivery of alpha-synuclein oligomers via protein transfection results in intracellular alpha-synuclein inclusions. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70571-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sperduto P, Chao S, Sneed P, Luo X, Roberge D, Bhatt A, Jensen A, Shih H, Kirkpatrick J, Schwer A. Diagnosis-specific Prognostic Factors, Indices, and Treatment Outcomes for Patients with Newly-diagnosed Brain Metastases: A Multi-institutional Analysis of over 5000 Patients. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Watson GJ, Kugel MR, Shih H, Tak Piech C, McKenzie RS. Cardiac cormorbidities in women with metastatic breast cancer treated with doxorubicin-based and non-doxorubicin-based chemotherapy. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.1052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1052 Background: Observational data are sparse regarding cardiac comorbidities in patients with metastatic breast cancer (MBC) newly initiated on chemotherapy. As some MBC treatments are associated with cardiac toxicity, such information would be useful in guiding treatment decisions. The objective of this analysis was to understand the frequency of cardiac comorbidities in MBC patients prior to chemotherapy initiation based on the Medicare 5% standard analytical file (SAF). Methods: The Medicare 5% SAF was used to investigate claims for women with breast neoplasm and > 1 distant metastatic site (based on ICD-9 diagnosis codes) that subsequently received chemotherapy (based on claims with a chemotherapy J code). Cardiac comorbidities [hypertension (HTN), coronary artery disease (CAD), myocardial function (MI), and congestive heart failure (CHF)] prior to initial chemotherapy were reported as non-mutually exclusive categories. The index quarter was based on chemotherapy initiation that occurred between 7/2001 and 12/2006. Patients were categorized based on receipt of non doxorubicin-based chemotherapy (non-DOX) vs DOX-based chemotherapy. Results: The study included 2,587 women with MBC that received cytotoxic chemotherapy subsequent to the diagnosis of MBC. The mean age was higher in the non-DOX group. Both groups reported a significant proportion of patients with cardiac comorbidities prior to chemotherapy, with greater proportions reported in the non-DOX group (table). Conclusions: Cardiac comorbidities were commonly reported in women with MBC prior to chemotherapy. Such information is useful to health care professionals when considering potential interventions for patients with MBC. [Table: see text] [Table: see text]
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Affiliation(s)
- G. J. Watson
- The Moran Company, Arlington, VA; Centocor Ortho Biotech Services LLC, Horsham, PA
| | - M. R. Kugel
- The Moran Company, Arlington, VA; Centocor Ortho Biotech Services LLC, Horsham, PA
| | - H. Shih
- The Moran Company, Arlington, VA; Centocor Ortho Biotech Services LLC, Horsham, PA
| | - C. Tak Piech
- The Moran Company, Arlington, VA; Centocor Ortho Biotech Services LLC, Horsham, PA
| | - R. S. McKenzie
- The Moran Company, Arlington, VA; Centocor Ortho Biotech Services LLC, Horsham, PA
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Knopf A, Parodi K, Paganetti H, Shih H, Bortfeld T. TU-FF-A1-01: Quantification of Clinical Limitations of Proton Beam Range Verification Using Offline PET/CT Due to Biological Washout Effects. Med Phys 2008. [DOI: 10.1118/1.2962638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Rashid S, Bishwakarma R, Shih H, Karnik A, Iqbal J. HYPERSENSITIVITY PNEUMONITIS PRESENTING AS PULMONARY MASSES AFTER INFLUENZA VACCINATION. Chest 2007. [DOI: 10.1378/chest.132.4_meetingabstracts.723a] [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: 11/01/2022] Open
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Craft D, Halabi T, Shih H, Bortfeld T. SU-FF-T-50: A Systematic Approach to Practical Multi-Criteria IMRT Planning. Med Phys 2007. [DOI: 10.1118/1.2760698] [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: 11/07/2022] Open
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Parodi K, Paganetti H, Shih H, Michaud S, Bortfeld T. TU-D-224A-05: Dose-Guided Particle Therapy with PET Imaging. Med Phys 2006. [DOI: 10.1118/1.2241582] [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: 11/07/2022] Open
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