1
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Silverman TA, Shadiack AM, Hofmeyer KA, Cecere AE, Eisnor DL, Hoffman CM, Loelius SG, Patel A, Homer MJ. Blood product use for radiological/nuclear trauma: product development and US regulatory considerations. Trauma Surg Acute Care Open 2024; 9:e001123. [PMID: 38196926 PMCID: PMC10773416 DOI: 10.1136/tsaco-2023-001123] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 10/03/2023] [Indexed: 01/11/2024] Open
Abstract
Blood products are likely to be critical components of the medical response to nuclear detonation, as the hematopoietic subsyndrome of acute radiation syndrome (H-ARS) includes depletion of platelets and red blood cells that can lead to lethal hemorrhage and anemia. There is, however, only limited clinical information on the use of blood products to treat H-ARS. As currently configured, the US blood supply cannot meet the predicted surge in blood product demand that is likely to occur short-term and possibly long-term in the event of a large nuclear detonation. As part of the Administration for Strategic Preparedness and Response within the US Department of Health and Human Services, the Biomedical Advanced Research and Development Authority (BARDA) is addressing this preparedness gap by supporting the development of novel blood products and devices with characteristics that improve blood product storage and use in austere operational environments. The US Food and Drug Administration's Center for Drug Evaluation and Research (CDER) recently issued draft guidance on the development of drugs and biologics regulated by CDER to prevent or treat Acute Radiation Syndrome under the provisions of the "Animal Rule." The commentary provided here discusses the unique regulatory scheme for transfusion components and blood products regulated as biological drugs by Center for Biologics Evaluation and Research, including the ambiguity surrounding the evidentiary requirements for their approval for H-ARS, and whether, under certain circumstances, a specific H-ARS indication is necessary if relevant commercial indications are approved.
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Affiliation(s)
- Toby A Silverman
- Tunnell Government Services, Bethesda, Maryland, USA
- Division of Chemical, Biological, Radiological, and Nuclear Medical Countermeasure, Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Annette M Shadiack
- Tunnell Government Services, Bethesda, Maryland, USA
- Division of Chemical, Biological, Radiological, and Nuclear Medical Countermeasure, Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Kimberly A Hofmeyer
- Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Ashley E Cecere
- Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Derek L Eisnor
- Division of Clinical Development, Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Corey M Hoffman
- Division of Chemical, Biological, Radiological, and Nuclear Medical Countermeasure, Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Shannon G Loelius
- Division of Chemical, Biological, Radiological, and Nuclear Medical Countermeasure, Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Aditiben Patel
- Division of Regulatory and Quality Affairs, Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
| | - Mary J Homer
- Division of Chemical, Biological, Radiological, and Nuclear Medical Countermeasure, Biomedical Advanced Research and Development Authority, Washington, District of Columbia, USA
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2
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Satyamitra MM, Andres DK, Bergmann JN, Hoffman CM, Hogdahl T, Homer MJ, Hu TC, Rios CI, Yeung DT, DiCarlo AL. Overlapping Science in Radiation and Sulfur Mustard Exposures of Skin and Lung: Consideration of Models, Mechanisms, Organ Systems, and Medical Countermeasures: Overlapping science in radiation and sulfur mustard injuries to lung and skin. Disaster Med Public Health Prep 2023; 17:e552. [PMID: 37852927 PMCID: PMC10843005 DOI: 10.1017/dmp.2023.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
PURPOSE To summarize presentations and discussions from the 2022 trans-agency workshop titled "Overlapping science in radiation and sulfur mustard (SM) exposures of skin and lung: Consideration of models, mechanisms, organ systems, and medical countermeasures." METHODS Summary on topics includes: (1) an overview of the radiation and chemical countermeasure development programs and missions; (2) regulatory and industry perspectives for drugs and devices; 3) pathophysiology of skin and lung following radiation or SM exposure; 4) mechanisms of action/targets, biomarkers of injury; and 5) animal models that simulate anticipated clinical responses. RESULTS There are striking similarities between injuries caused by radiation and SM exposures. Primary outcomes from both types of exposure include acute injuries, while late complications comprise chronic inflammation, oxidative stress, and vascular dysfunction, which can culminate in fibrosis in both skin and lung organ systems. This workshop brought together academic and industrial researchers, medical practitioners, US Government program officials, and regulators to discuss lung-, and skin- specific animal models and biomarkers, novel pathways of injury and recovery, and paths to licensure for products to address radiation or SM injuries. CONCLUSIONS Regular communications between the radiological and chemical injury research communities can enhance the state-of-the-science, provide a unique perspective on novel therapeutic strategies, and improve overall US Government emergency preparedness.
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Affiliation(s)
- Merriline M. Satyamitra
- Radiation and Nuclear Countermeasures Program (RNCP), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH)
| | | | - Julie N. Bergmann
- Radiological/Nuclear Medical Countermeasures Program, Biomedical Advanced Research and Development Authority (BARDA)
| | - Corey M. Hoffman
- Radiological/Nuclear Medical Countermeasures Program, Biomedical Advanced Research and Development Authority (BARDA)
| | | | - Mary J. Homer
- Radiological/Nuclear Medical Countermeasures Program, Biomedical Advanced Research and Development Authority (BARDA)
| | - Tom C. Hu
- Chemical Medical Countermeasures Program, BARDA
| | - Carmen I. Rios
- Radiation and Nuclear Countermeasures Program (RNCP), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH)
| | - David T. Yeung
- Chemical Countermeasures Research Program (CCRP), NIAID, NIH
| | - Andrea L. DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH)
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3
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Hollingsworth BA, Aldrich JT, Case CM, DiCarlo AL, Hoffman CM, Jakubowski AA, Liu Q, Loelius SG, PrabhuDas M, Winters TA, Cassatt DR. Immune Dysfunction from Radiation Exposure. Radiat Res 2023; 200:396-416. [PMID: 38152282 PMCID: PMC10751071 DOI: 10.1667/rade-22-00004.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
The hematopoietic system is highly sensitive to ionizing radiation. Damage to the immune system may result in opportunistic infections and hemorrhage, which could lead to mortality. Inflammation triggered by tissue damage can also lead to additional local or widespread tissue damage. The immune system is responsible for tissue repair and restoration, which is made more challenging when it is in the process of self-recovery. Because of these challenges, the Radiation and Nuclear Countermeasures Program (RNCP) and the Basic Immunology Branch (BIB) under the Division of Allergy, Immunology, and Transplantation (DAIT) within the National Institute of Allergy and Infectious Diseases (NIAID), along with partners from the Biomedical Advanced Research and Development Authority (BARDA), and the Radiation Injury Treatment Network (RITN) sponsored a two-day meeting titled Immune Dysfunction from Radiation Exposure held on September 9-10, 2020. The intent was to discuss the manifestations and mechanisms of radiation-induced immune dysfunction in people and animals, identify knowledge gaps, and discuss possible treatments to restore immune function and enhance tissue repair after irradiation.
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Affiliation(s)
- Brynn A. Hollingsworth
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
- Current address: Center for Biologics Evaluation and Research (CBER), Food and Drug Administration (FDA), Silver Spring, Maryland
| | | | - Cullen M. Case
- Radiation Injury Treatment Network, Minneapolis, Minnesota
| | - Andrea L. DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
| | - Corey M. Hoffman
- Biomedical Advanced Research and Development Authority (BARDA), Office of the Assistant Secretary for Preparedness and Response (ASPR), Department of Health and Human Services (HHS), Washington, DC
| | | | - Qian Liu
- Basic Immunology Branch (BIB), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
| | - Shannon G. Loelius
- Biomedical Advanced Research and Development Authority (BARDA), Office of the Assistant Secretary for Preparedness and Response (ASPR), Department of Health and Human Services (HHS), Washington, DC
| | - Mercy PrabhuDas
- Basic Immunology Branch (BIB), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
| | - Thomas A. Winters
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
| | - David R. Cassatt
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, Maryland
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4
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Hunter KS, Carnell LS, DiCarlo AL, Hoffman CM, Loelius SG, Homer M. Interagency approaches to animal models for acute radiation exposure. Int J Radiat Biol 2021; 97:S2-S5. [PMID: 34854794 PMCID: PMC8771920 DOI: 10.1080/09553002.2021.2002661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ionizing radiation can cause devastating injuries including hemorrhage, immune suppression, increased susceptibility to infection, and death. Medical countermeasures (MCMs) that address and mitigate radiation-induced injuries are the most important tools for countering the consequences of radiation exposure. Likewise, in matters of public health security, the development and advancement of radiological MCMs are fundamental for establishing an effective response to radiological and nuclear threats. United States Government agencies such as the Biomedical Advanced Research and Development Authority (BARDA), the National Institute of Allergy and Infectious Diseases (NIAID), and the National Aeronautics and Space Administration (NASA) have dedicated significant efforts to advance the development of MCMs to treat radiation injury and facilitate their introduction into the public sphere. Due to the severe nature of radiation injuries, clinical trials are unethical. Therefore, nonclinical models that accurately replicate clinical manifestations of ionizing radiation injury observed in humans are essential to MCM advancement. The most frequently used nonclinical models of radiation injury are rodents and non-human primates (NHPs). These species reproduce many aspects of human disease caused by ionizing radiation and have been pivotal for the development and licensure of radiological MCMs. Despite these successes, model drawbacks have prompted the exploration and development of additional nonclinical models. Minipigs and rabbits show promise as acceptable models of radiation injury and demonstrate the potential to contribute significantly to MCM advancement. This collection of research showcases the capabilities of minipigs and rabbits in mirroring clinically relevant aspects of radiation-induced disease and documents the potential value these models may hold for radiological and nuclear MCM research. Together, these government-funded studies represent advances in radiological MCM development that can facilitate the emergence of cutting-edge technologies.
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Affiliation(s)
- Kasandra S Hunter
- Biomedical Advanced Research and Development Authority (BARDA), Office of the Assistant Secretary for Preparedness and Response (ASPR), US Department of Health and Human Services (HHS), Washington, DC, USA
| | - Lisa S Carnell
- Biological and Physical Sciences Division, NASA Headquarters, Washington, DC, USA
| | - Andrea L DiCarlo
- Radiation and Nuclear Countermeasures Program (RNCP), Division of Allergy, Immunology, and Transplantation (DAIT), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Rockville, MD, USA
| | - Corey M Hoffman
- Biomedical Advanced Research and Development Authority (BARDA), Office of the Assistant Secretary for Preparedness and Response (ASPR), US Department of Health and Human Services (HHS), Washington, DC, USA
| | - Shannon G Loelius
- Biomedical Advanced Research and Development Authority (BARDA), Office of the Assistant Secretary for Preparedness and Response (ASPR), US Department of Health and Human Services (HHS), Washington, DC, USA
| | - Mary Homer
- Biomedical Advanced Research and Development Authority (BARDA), Office of the Assistant Secretary for Preparedness and Response (ASPR), US Department of Health and Human Services (HHS), Washington, DC, USA
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5
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Abstract
Abstract
A method is presented for the determination of antimony, copper, bismuth, and silver in bullet leads by atomic absorption. Interference in the determination of these elements from high lead concentrations was studied. Bullets of the same caliber, produced by 3 different manufacturers, can be distinguished based on the antimony concentration alone. Measurable variations in the concentrations of antimony, copper, bismuth, and silver exist and can be used to estimate batch differences in lead produced by the same manufacturer.
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Affiliation(s)
- R L Brunelle
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - C M Hoffman
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - K B Snow
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
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6
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Frisch BJ, Hoffman CM, Latchney SE, LaMere MW, Myers J, Ashton J, Li AJ, Saunders J, Palis J, Perkins AS, McCabe A, Smith JN, McGrath KE, Rivera-Escalera F, McDavid A, Liesveld JL, Korshunov VA, Elliott MR, MacNamara KC, Becker MW, Calvi LM. Aged marrow macrophages expand platelet-biased hematopoietic stem cells via Interleukin1B. JCI Insight 2019; 5:124213. [PMID: 30998506 DOI: 10.1172/jci.insight.124213] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The bone marrow microenvironment (BMME) contributes to the regulation of hematopoietic stem cell (HSC) function, though its role in age-associated lineage skewing is poorly understood. Here we show that dysfunction of aged marrow macrophages (Mφs) directs HSC platelet-bias. Mφs from the marrow of aged mice and humans exhibited an activated phenotype, with increased expression of inflammatory signals. Aged marrow Mφs also displayed decreased phagocytic function. Senescent neutrophils, typically cleared by marrow Mφs, were markedly increased in aged mice, consistent with functional defects in Mφ phagocytosis and efferocytosis. In aged mice, Interleukin 1B (IL1B) was elevated in the bone marrow and caspase 1 activity, which can process pro-IL1B, was increased in marrow Mφs and neutrophils. Mechanistically, IL1B signaling was necessary and sufficient to induce a platelet bias in HSCs. In young mice, depletion of phagocytic cell populations or loss of the efferocytic receptor Axl expanded platelet-biased HSCs. Our data support a model wherein increased inflammatory signals and decreased phagocytic function of aged marrow Mφs induce the acquisition of platelet bias in aged HSCs. This work highlights the instructive role of Mφs and IL1B in the age-associated lineage-skewing of HSCs, and reveals the therapeutic potential of their manipulation as antigeronic targets.
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Affiliation(s)
| | - Corey M Hoffman
- Department of Medicine.,James P. Wilmot Cancer Institute, and.,Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | | | - Mark W LaMere
- Department of Medicine.,James P. Wilmot Cancer Institute, and
| | - Jason Myers
- James P. Wilmot Cancer Institute, and.,UR Genomics Research Center, Rochester, New York, USA
| | - John Ashton
- James P. Wilmot Cancer Institute, and.,UR Genomics Research Center, Rochester, New York, USA
| | - Allison J Li
- Department of Medicine.,James P. Wilmot Cancer Institute, and
| | - Jerry Saunders
- Center for Pediatric Biomedical Research and.,Department of Pathology and Laboratory Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - James Palis
- James P. Wilmot Cancer Institute, and.,Center for Pediatric Biomedical Research and
| | - Archibald S Perkins
- James P. Wilmot Cancer Institute, and.,Department of Pathology and Laboratory Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Amanda McCabe
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, New York, USA
| | - Julianne Np Smith
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, New York, USA
| | | | | | - Andrew McDavid
- Department of Biostatistics and Computational Biology, and
| | - Jane L Liesveld
- Department of Medicine.,James P. Wilmot Cancer Institute, and
| | - Vyacheslav A Korshunov
- Department of Medicine.,Aab Cardiovascular Research Institute, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Katherine C MacNamara
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, New York, USA
| | | | - Laura M Calvi
- Department of Medicine.,James P. Wilmot Cancer Institute, and
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7
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Abstract
Hematopoiesis in land dwelling vertebrates and marine mammals occurs within the bone marrow, continually providing mature progeny over the course of an organism's lifetime. This conserved dependency highlights the critical relationship between these two organs, yet the skeletal and hematopoietic systems are often thought of as separate. In fact, data are beginning to show that skeletal disease pathogenesis influences hematopoiesis and viceversa, offering novel opportunities to approach disease affecting bone and blood. With a growing global population of aged individuals, interest has focused on cell autonomous changes in hematopoietic and skeletal systems that result in dysfunction. The purpose of this review is to summarize the literature on aging effects in both fields, and provide critical examples of organ cross-talk in the aging process.
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Affiliation(s)
- Corey M Hoffman
- University of Rochester Medical Center, Rochester, NY, United States of America
| | - Jimin Han
- University of Rochester Medical Center, Rochester, NY, United States of America
| | - Laura M Calvi
- University of Rochester Medical Center, Rochester, NY, United States of America.
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8
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Yeddanapudi N, Clay MA, Durham DP, Hoffman CM, Homer MJ, Appler JM. Informing CONOPS and medical countermeasure deployment strategies after an improvised nuclear device detonation: the importance of delayed treatment efficacy data. Int J Radiat Biol 2018; 96:4-11. [PMID: 30403905 DOI: 10.1080/09553002.2018.1532618] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Purpose: In the wake of a nuclear detonation, individuals with acute radiation syndrome will be a significant source of morbidity and mortality. Mathematical modeling can compare response strategies developed for real-world chaotic conditions after a nuclear blast in order to identify optimal strategies for administering effective treatment to these individuals. To maximize responders' abilities to save lives it is critical to understand how treatment efficacy is impacted by real-world conditions and levels of supportive care. To illustrate the importance of these factors, we developed a mathematical model of cytokine administration 24 h after the blast with varying levels of supportive care described in the primary literature.Conclusion: The results highlight the proportionally higher life-saving benefit of administering cytokines to individuals with a moderate to high dose of radiation exposure, compared to those with a lower dose. However, the fidelity of mathematical models is dependent on the primary data informing them. We describe the data needed to fully explore the impact of timing, dosage, and fractional benefit of cytokines and supportive care treatment in non-optimal situations that could be seen after a nuclear detonation. Studies addressing these types of knowledge gaps are essential to evaluating the relative efficacy of countermeasures to refine existing plans and help develop new strategies and priorities.
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Affiliation(s)
- N Yeddanapudi
- Supporting Department of Health and Human Services (HHS)/Assistant Secretary for Preparedness and Response (ASPR), Leidos Inc., Alexandria, VA, USA
| | - M A Clay
- Supporting Department of Health and Human Services (HHS)/Assistant Secretary for Preparedness and Response (ASPR), Leidos Inc., Alexandria, VA, USA
| | - D P Durham
- Supporting Department of Health and Human Services (HHS)/Assistant Secretary for Preparedness and Response (ASPR), Leidos Inc., Alexandria, VA, USA
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9
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Hunt R, Hoffman CM, Emani S, Trenor CC, Emani SM, Faraoni D, Kimchi-Sarfaty C, Ibla JC. Elevated preoperative von Willebrand factor is associated with perioperative thrombosis in infants and neonates with congenital heart disease. J Thromb Haemost 2017; 15:2306-2316. [PMID: 28981194 DOI: 10.1111/jth.13860] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 01/19/2023]
Abstract
Essentials Perioperative thrombosis is a major cause of morbidity and mortality in congenital heart disease. Neonates and infants undergoing repair of congenital heart lesions were prospectively followed. Elevated von Willebrand factor (VWF) to ADAMTS-13 activity ratios typified the postoperative period. Thrombosis was associated with preoperative VWF activity and cryoprecipitate transfusion SUMMARY: Background The surgical repair of congenital heart malformations is frequently complicated by perioperative thrombosis of unclear etiology. An imbalance between von Willebrand factor (VWF) and ADAMTS-13 is an emerging variable in thrombosis. Objectives To describe perioperative changes to VWF, ADAMTS-13 and NETosis, and evaluate clinical and biochemical associations with postoperative thrombosis. Methods Neonates and infants undergoing palliation or definitive surgical repair of congenital heart malformations were recruited (n = 133). Preoperative and postoperative plasma levels of VWF, ADAMTS-13 and markers of NETosis were determined. Patients were followed for up to 30 days for the occurrence of thrombosis. Univariate and multivariate logistic regression analyses were conducted to identify variables associated with thrombosis. Results We identified significant postoperative increases in VWF activity, VWF level, DNA-histone complexes and cell-free DNA with an overall decrease in ADAMTS-13 activity. Patients experiencing postoperative thrombotic events (9%) were characterized by surgery performed at a lower intraoperative temperature, higher preoperative lactic acid levels, and higher preoperative VWF activity and level. A multivariate logistic regression model identified preoperative VWF activity (odds ratio (OR) 8.39 per IU mL-1 , 95% confidence interval [CI] 1.73-40.55) and transfusion of cryoprecipitate (OR 1.10 per mL kg-1 , 95% CI 1.03-1.17) as being associated with thrombosis. Conclusions Pediatric patients undergoing surgical repair of congenital heart malformations are exposed to high levels of VWF with diminished or minimal change to ADAMTS-13 in the immediate postoperative period. Elevated preoperative VWF activity is associated with postoperative thrombosis in pediatric congenital heart disease.
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Affiliation(s)
- R Hunt
- Hemostasis Branch, Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapeutics, Center for Biologics Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - C M Hoffman
- Hemostasis Branch, Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapeutics, Center for Biologics Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - S Emani
- Department of Cardiac Surgery, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - C C Trenor
- Division of Hematology/Oncology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - S M Emani
- Department of Cardiac Surgery, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - D Faraoni
- Division of Cardiac Anesthesia, Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - C Kimchi-Sarfaty
- Hemostasis Branch, Division of Plasma Protein Therapeutics, Office of Tissues and Advanced Therapeutics, Center for Biologics Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - J C Ibla
- Department of Anesthesiology Perioperative and Pain Medicine, Division of Cardiac Anesthesia, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
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10
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Patel N, Hoffman CM, Goldman BI, Bentley K, Burack WR, Evans AG. Green Inclusions in Neutrophils and Monocytes Are an Indicator of Acute Liver Injury and High Mortality. Acta Haematol 2017; 138:85-90. [PMID: 28813697 DOI: 10.1159/000477794] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 05/28/2017] [Indexed: 11/19/2022]
Affiliation(s)
- Nisha Patel
- Department of Pathology and Laboratory Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
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11
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Lawal RA, Zhou X, Batey K, Hoffman CM, Georger MA, Radtke F, Hilton MJ, Xing L, Frisch BJ, Calvi LM. The Notch Ligand Jagged1 Regulates the Osteoblastic Lineage by Maintaining the Osteoprogenitor Pool. J Bone Miner Res 2017; 32:1320-1331. [PMID: 28277610 PMCID: PMC5466455 DOI: 10.1002/jbmr.3106] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 01/30/2017] [Accepted: 02/01/2017] [Indexed: 12/16/2022]
Abstract
Notch signaling is critical for osteoblastic differentiation; however, the specific contribution of individual Notch ligands is unknown. Parathyroid hormone (PTH) regulates the Notch ligand Jagged1 in osteoblastic cells. To determine if osteolineage Jagged1 contributes to bone homeostasis, selective deletion of Jagged1 in osteolineage cells was achieved through the presence of Prx1 promoter-driven Cre recombinase expression, targeting mesenchymal stem cells (MSCs) and their progeny (PJag1 mice). PJag1 mice were viable and fertile and did not exhibit any skeletal abnormalities at 2 weeks of age. At 2 months of age, however, PJag1 mice had increased trabecular bone mass compared to wild-type (WT) littermates. Dynamic histomorphometric analysis showed increased osteoblastic activity and increased mineral apposition rate. Immunohistochemical analysis showed increased numbers of osteocalcin-positive mature osteoblasts in PJag1 mice. Also increased phenotypically defined Lin- /CD45- /CD31- /Sca1- /CD51+ osteoblastic cells were measured by flow cytometric analysis. Surprisingly, phenotypically defined Lin- /CD45- /CD31- /Sca1+ /CD51+ MSCs were unchanged in PJag1 mice as measured by flow cytometric analysis. However, functional osteoprogenitor (OP) cell frequency, measured by Von Kossa+ colony formation, was decreased, suggesting that osteolineage Jagged1 contributes to maintenance of the OP pool. The trabecular bone increases were not due to osteoclastic defects, because PJag1 mice had increased bone resorption. Because PTH increases osteoblastic Jagged1, we sought to understand if osteolineage Jagged1 modulates PTH-mediated bone anabolism. Intermittent PTH treatment resulted in a significantly greater increase in BV/TV in PJag1 hind limbs compared to WT. These findings demonstrate a critical role of osteolineage Jagged1 in bone homeostasis, where Jagged1 maintains the transition of OP to maturing osteoblasts. This novel role of Jagged1 not only identifies a regulatory loop maintaining appropriate populations of osteolineage cells, but also provides a novel approach to increase trabecular bone mass, particularly in combination with PTH, through modulation of Jagged1. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Rialnat A Lawal
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.,Department of Pathology and Laboratory Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Xichao Zhou
- Department of Pathology and Laboratory Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Kaylind Batey
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Corey M Hoffman
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.,Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Mary A Georger
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Freddy Radtke
- Ecole Polytechnique Fédérale de Lausanne, School of Life Sciences, Swiss Institute for Experimental Cancer Research, Lausanne, Vaud, Switzerland
| | - Matthew J Hilton
- Duke Orthopedic Surgery and Cell Biology, Duke University School of Medicine, Durham, NC, USA
| | - Lianping Xing
- Department of Pathology and Laboratory Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Benjamin J Frisch
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Laura M Calvi
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
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12
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Abstract
Hematopoiesis in vertebrates is sustained over the duration of an organism's lifetime due to strict regulation of the highly hierarchical hematopoietic system, where a few immature hematopoietic stem cells (HSCs) continuously regenerate the entire blood supply, which is constantly being replaced. Although HSCs self-regulate through cell-autonomous processes, they also receive a variety of signals from their microenvironment or niche. Within the microenvironment, HSCs are regulated through both cell-cell interactions and secreted signals, including hormones. HSCs at the apex of the blood supply integrate these signals to produce progeny to support hematopoiesis while simultaneously maintaining a stem cell pool. In the past 10 years, advances in genetic models and flow cytometry have provided the tools to test how the microenvironment regulates HSCs. This review is organized in 3 main parts and will focus on cellular components of the HSC niche that are potential targets for hormonal signals, then review critical regulatory signals in the HSC niche, and finally highlight the emerging role of hormonal and paracrine signals in the bone marrow.
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Affiliation(s)
- Corey M Hoffman
- Endocrine Division (C.M.H., L.M.C.), Department of Medicine, and Department of Pharmacology and Physiology (C.M.H.), University of Rochester School of Medicine, Rochester, New York 14642
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Trembley MA, Velasquez LS, Hoffman CM, de Mesy Bentley KL, Small EM. Abstract 286: Myocardin-related Transcription Factors Control Epicardial EMT and Coronary Vessel Homeostasis. Circ Res 2014. [DOI: 10.1161/res.115.suppl_1.286] [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: 11/16/2022]
Abstract
The epicardium is a source of multi-potent progenitor cells that envelop the heart and contribute to various cardiac lineages through the process of epithelial-to-mesenchymal transition (EMT). Although known upstream cues promote epicardial EMT via changes in gene expression and actin cytoskeletal dynamics, the link between these signals and progenitor cell motility remain unclear. Myocardin-related transcription factor (MRTF) cofactors are primarily retained in the cytoplasm through interactions with G-actin. However, upon cytoskeletal reorganization and G-actin depletion, nuclear MRTFs associate with serum response factor (SRF) to drive cellular motility and contractility gene programs reminiscent of EMT. Here, we identify the SRF/MRTF gene regulatory axis as a key mediator of epicardial EMT. We found significant enrichment of MRTF-A and -B in the epicardium prior to EMT. MRTFs were later expressed in a spatial and temporal manner concurrent with EMT and epicardial-derived cell (EPDC) differentiation. Furthermore, MRTF deletion attenuates contractile gene expression in epicardial explants and impairs migration of EPDCs into subjacent cell layers using
ex vivo
assays. Epicardial EMT and EPDCs differentiation are necessary for proper coronary vessel formation. We found that genetic ablation of MRTFs results in disrupted coronary plexus formation, endothelial cell dysfunction, and sub-epicardial hemorrhage. The vascular phenotype observed in MRTF-A/B
epiDKO
mice results in part from the depletion (~50% reduction) of epicardial-derived coronary pericytes. These data suggest a critical role for MRTFs in coronary vessel formation by regulating epicardial EMT and mobilizing EPDCs.
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Affiliation(s)
| | | | - Corey M Hoffman
- Univ of Rochester Sch of Medicine and Dentistry, Rochester, NY
| | | | - Eric M Small
- Univ of Rochester Sch of Medicine and Dentistry, Rochester, NY
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14
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Abbasi RU, Abu-Zayyad T, Al-Seady M, Allen M, Amman JF, Anderson RJ, Archbold G, Belov K, Belz JW, Bergman DR, Blake SA, Brusova OA, Burt GW, Cannon C, Cao Z, Deng W, Fedorova Y, Finley CB, Gray RC, Hanlon WF, Hoffman CM, Holzscheiter MH, Ivanov D, Hughes G, Hüntemeyer P, Ivanov D, Jones BF, Jui CCH, Kim K, Kirn MA, Loh EC, Liu J, Lundquist JP, Maestas MM, Manago N, Marek LJ, Martens K, Matthews JAJ, Matthews JN, Moore SA, O'Neill A, Painter CA, Perera L, Reil K, Riehle R, Roberts M, Rodriguez D, Sasaki N, Schnetzer SR, Scott LM, Sinnis G, Smith JD, Sokolsky P, Song C, Springer RW, Stokes BT, Stratton S, Thomas SB, Thomas JR, Thomson GB, Tupa D, Zech A, Zhang X. Indications of proton-dominated cosmic-ray composition above 1.6 EeV. Phys Rev Lett 2010; 104:161101. [PMID: 20482038 DOI: 10.1103/physrevlett.104.161101] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 03/28/2010] [Indexed: 05/29/2023]
Abstract
We report studies of ultrahigh-energy cosmic-ray composition via analysis of depth of air shower maximum (X(max)), for air shower events collected by the High-Resolution Fly's Eye (HiRes) observatory. The HiRes data are consistent with a constant elongation rate d<X(max)>/d[log(E)] of 47.9+/-6.0(stat)+/-3.2(syst) g/cm2/decade for energies between 1.6 and 63 EeV, and are consistent with a predominantly protonic composition of cosmic rays when interpreted via the QGSJET01 and QGSJET-II high-energy hadronic interaction models. These measurements constrain models in which the galactic-to-extragalactic transition is the cause of the energy spectrum ankle at 4x10(18) eV.
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Affiliation(s)
- R U Abbasi
- Department of Physics, University of Utah, Salt Lake City, Utah, USA
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15
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Abdo AA, Allen B, Aune T, Berley D, Blaufuss E, Casanova S, Chen C, Dingus BL, Ellsworth RW, Fleysher L, Fleysher R, Gonzalez MM, Goodman JA, Hoffman CM, Hüntemeyer PH, Kolterman BE, Lansdell CP, Linnemann JT, McEnery JE, Mincer AI, Nemethy P, Noyes D, Pretz J, Ryan JM, Parkinson PMS, Shoup A, Sinnis G, Smith AJ, Sullivan GW, Vasileiou V, Walker GP, Williams DA, Yodh GB. Discovery of localized regions of excess 10-TeV cosmic rays. Phys Rev Lett 2008; 101:221101. [PMID: 19113471 DOI: 10.1103/physrevlett.101.221101] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Revised: 09/29/2008] [Indexed: 05/27/2023]
Abstract
The 7 year data set of the Milagro TeV observatory contains 2.2 x 10(11) events of which most are due to hadronic cosmic rays. These data are searched for evidence of intermediate scale structure. Excess emission on angular scales of approximately 10 degrees has been found in two localized regions of unknown origin with greater than 12sigma significance. Both regions are inconsistent with pure gamma-ray emission with high confidence. One of the regions has a different energy spectrum than the isotropic cosmic-ray flux at a level of 4.6sigma, and it is consistent with hard spectrum protons with an exponential cutoff, with the most significant excess at approximately 10 TeV. Potential causes of these excesses are explored, but no compelling explanations are found.
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Affiliation(s)
- A A Abdo
- Naval Research Laboratory, Washington, DC, USA
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16
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Abbasi RU, Abu-Zayyad T, Allen M, Amman JF, Archbold G, Belov K, Belz JW, Ben Zvi SY, Bergman DR, Blake SA, Brusova OA, Burt GW, Cannon C, Cao Z, Connolly BC, Deng W, Fedorova Y, Finley CB, Gray RC, Hanlon WF, Hoffman CM, Holzscheiter MH, Hughes G, Hüntemeyer P, Jones BF, Jui CCH, Kim K, Kirn MA, Loh EC, Maestas MM, Manago N, Marek LJ, Martens K, Matthews JAJ, Matthews JN, Moore SA, O'Neill A, Painter CA, Perera L, Reil K, Riehle R, Roberts M, Rodriguez D, Sasaki N, Schnetzer SR, Scott LM, Sinnis G, Smith JD, Sokolsky P, Song C, Springer RW, Stokes BT, Thomas SB, Thomas JR, Thomson GB, Tupa D, Westerhoff S, Wiencke LR, Zhang X, Zech A. First observation of the Greisen-Zatsepin-Kuzmin suppression. Phys Rev Lett 2008; 100:101101. [PMID: 18352170 DOI: 10.1103/physrevlett.100.101101] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2007] [Revised: 01/07/2008] [Indexed: 05/26/2023]
Abstract
The High Resolution Fly's Eye (HiRes) experiment has observed the Greisen-Zatsepin-Kuzmin suppression (called the GZK cutoff) with a statistical significance of five standard deviations. HiRes' measurement of the flux of ultrahigh energy cosmic rays shows a sharp suppression at an energy of 6 x 10(19) eV, consistent with the expected cutoff energy. We observe the ankle of the cosmic-ray energy spectrum as well, at an energy of 4 x 10(18) eV. We describe the experiment, data collection, and analysis and estimate the systematic uncertainties. The results are presented and the calculation of the statistical significance of our observation is described.
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Affiliation(s)
- R U Abbasi
- Department of Physics, University of Utah, Salt Lake City, Utah 84112, USA
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17
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Atkins R, Benbow W, Berley D, Blaufuss E, Coyne DG, DeYoung T, Dingus BL, Dorfan DE, Ellsworth RW, Fleysher L, Fleysher R, Gisler G, Gonzalez MM, Goodman JA, Haines TJ, Hays E, Hoffman CM, Kelley LA, Lansdell CP, Linnemann JT, McEnery JE, Miller RS, Mincer AI, Morales MF, Nemethy P, Noyes D, Ryan JM, Samuelson FW, Parkinson PMS, Shoup A, Sinnis G, Smith AJ, Sullivan GW, Williams DA, Wilson ME, Xu XW, Yodh GB. Evidence for TeV gamma-ray emission from a region of the galactic plane. Phys Rev Lett 2005; 95:251103. [PMID: 16384445 DOI: 10.1103/physrevlett.95.251103] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2005] [Revised: 10/05/2005] [Indexed: 05/05/2023]
Abstract
Gamma-ray emission from a narrow band at the galactic equator has previously been detected up to 30 GeV. We report evidence for a TeV gamma-ray signal from a region of the galactic plane by Milagro, a large-field-of-view water Cherenkov detector for extensive air showers. An excess with a significance of 4.5 standard deviations has been observed from the region of galactic longitude l E (40 degrees, 100 degrees) and latitude /b/ < 5 degrees. Under the assumption of a simple power law spectrum, with no cutoff in the EGRET-Milagro energy range, the measured integral flux is phi gamma(>3.5 TeV) = (6.4 +/- 1.4 +/- 2.1) x 10(-11) cm(-2) s(-1) sr(-1). This flux is consistent with an extrapolation of the EGRET spectrum between 1 and 30 GeV in this galactic region.
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Affiliation(s)
- R Atkins
- Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706, USA
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18
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Abbasi RU, Abu-Zayyad T, Amann JF, Archbold G, Bellido JA, Belov K, Belz JW, Bergman DR, Cao Z, Clay RW, Cooper MD, Dai H, Dawson BR, Everett AA, Fedorova YA, Girard JHV, Gray RC, Hanlon WF, Hoffman CM, Holzscheiter MH, Hüntemeyer P, Jones BF, Jui CCH, Kieda DB, Kim K, Kirn MA, Loh EC, Manago N, Marek LJ, Martens K, Martin G, Matthews JAJ, Matthews JN, Meyer JR, Moore SA, Morrison P, Moosman AN, Mumford JR, Munro MW, Painter CA, Perera L, Reil K, Riehle R, Roberts M, Sarracino JS, Sasaki M, Schnetzer SR, Shen P, Simpson KM, Sinnis G, Smith JD, Sokolsky P, Song C, Springer RW, Stokes BT, Taylor SF, Thomas SB, Thompson TN, Thomson GB, Tupa D, Westerhoff S, Wiencke LR, VanderVeen TD, Zech A, Zhang X. Measurement of the flux of ultrahigh energy cosmic rays from monocular observations by the High Resolution Fly's Eye experiment. Phys Rev Lett 2004; 92:151101. [PMID: 15169276 DOI: 10.1103/physrevlett.92.151101] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2002] [Revised: 05/28/2003] [Indexed: 05/24/2023]
Abstract
We have measured the cosmic ray spectrum above 10(17.2) eV using the two air-fluorescence detectors of the High Resolution Fly's Eye observatory operating in monocular mode. We describe the detector, phototube, and atmospheric calibrations, as well as the analysis techniques for the two detectors. We fit the spectrum to a model consisting of galactic and extragalactic sources.
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Affiliation(s)
- R U Abbasi
- Department of Physics and High Energy Astrophysics Institute, University of Utah, Salt Lake City, Utah 84112, USA
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19
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Atkins R, Benbow W, Berley D, Chen ML, Coyne DG, Dingus BL, Dorfan DE, Ellsworth RW, Evans D, Falcone A, Fleysher L, Fleysher R, Gisler G, Goodman JA, Haines TJ, Hoffman CM, Hugenberger S, Kelley LA, Leonor I, McConnell M, McCullough JF, McEnery JE, Miller RS, Mincer AI, Morales MF, Nemethy P, Ryan JM, Shen B, Shoup A, Sinnis C, Smith AJ, Sullivan GW, Tumer T, Wang K, Wascko MO, Westerhoff S, Williams DA, Yang T, Yodh GB. Evidence for TeV Emission from GRB 970417a. Astrophys J 2000; 533:L119-L122. [PMID: 10770704 DOI: 10.1086/312629] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/1999] [Accepted: 03/03/2000] [Indexed: 05/23/2023]
Abstract
Milagrito, a detector sensitive to very high energy gamma rays, monitored the northern sky from 1997 February through 1998 May. With a large field of view and a high duty cycle, this instrument was well suited to perform a search for TeV gamma-ray bursts (GRBs). We report on a search made for TeV counterparts to GRBs observed by BATSE. BATSE detected 54 GRBs within the field of view of Milagrito during this period. An excess of events coincident in time and space with one of these bursts, GRB 970417a, was observed by Milagrito. The excess has a chance probability of 2.8x10-5 of being a fluctuation of the background. The probability for observing an excess at least this large from any of the 54 bursts is 1.5x10-3. No significant correlations were detected from the other bursts.
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20
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Atkins R, Benbow W, Berley D, Chen ML, Coyne DG, Delay RS, Dingus BL, Dorfan DE, Ellsworth RW, Espinoza C, Evans D, Falcone A, Fleysher L, Fleysher R, Gisler G, Goodman JA, Haines TJ, Hoffman CM, Hugenberger S, Kelley LA, Leonor I, McConnell M, McCullough JF, McEnery JE, Miller RS, Mincer AI, Morales MF, Murray MM, Nemethy P, Ryan JM, Schneider M, Shen B, Shoup A, Sinnis C, Smith AJ, Sullivan GW, Thompson TN, Tumer T, Wang K, Wascko MO, Westerhoff S, Williams DA, Yang T, Yodh GB. TeV Observations of Markarian 501 with the Milagrito Water Cerenkov Detector. Astrophys J 1999; 525:L25-L28. [PMID: 10511505 DOI: 10.1086/312332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The Milagrito water Cerenkov detector near Los Alamos, New Mexico, was operated as a sky monitor at energies of a few TeV between 1997 February and 1998 May, including the period of the strong, long-lasting 1997 flare of Markarian 501. Milagrito served as a test run for the full Milagro detector. An event excess with a significance of 3.7 sigma from Markarian 501 was observed, in agreement with expectations.
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Abstract
Hoffman, Flory, and Alberts (1999) demonstrated that 1-, 5-, and 11-day-old rats in a cool environment (25 degrees C) acquired an operant head-turning response when rewarded with a 20-s warming of the platform on which they lay. In the current experiment 5- and 11-day-old rats in a hot environment (40 degrees C) acquired the head-turning response when rewarded with a 20-s cooling of the platform on which they lay, but 1-day-olds did not. The concept of ontogenetic adaptation helps us interpret these results: Neonatal thermotaxis constrains the 1-day-olds from learning a novel operant response for a cool reinforcer in a hot environment. Because the thermotaxis wanes from birth, it is not as strong in 5- and 11-day-old pups that are thus able to learn the operant for a cool reinforcer.
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Affiliation(s)
- C M Hoffman
- Department of Psychology, Indiana University, Bloomington 47405, USA
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22
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Abstract
One-, 5-, and 11-day-old rats in a cool environment (25 degrees C) acquired an operant response when rewarded with a 20-s-long warming of the platform (from 25 to 36 degrees C) on which they lay. In Experiment 1, the head-turning response was learned by pups at all ages. When the contingency was reversed so that pups were reinforced for turning to the side opposite that correct during training, the original response extinguished for 1-day-olds, but not for 5- or 11-day-olds. In Experiment 2, the rewarded side was randomly selected for each trial. One-day-olds perseverated in turning to the side correct on that trial while the reinforcer remained on, but 5- and 11-day-old rat pups did not. We conclude that 1-day-old pups were more responsive to the change in experimental contingency in Experiment 1 due to this thermotaxic behavior.
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Affiliation(s)
- C M Hoffman
- Department of Psychology, Indiana University, Bloomington 47405, USA
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23
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Hoffman CM. Depression in pregnancy. A frequent problem that is frequently missed. N C Med J 1995; 56:212-213. [PMID: 7609794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Alexandreas DE, Allen GE, Berley D, Biller S, Burman RL, Cavalli-Sforza M, Chang CY, Chen ML, Chumney P, Coyne D, Dion C, Dion GM, Dorfan D, Ellsworth RW, Goodman JA, Haines TJ, Harmon M, Hoffman CM, Kelley L, Klein S, Nagle DE, Schmidt DM, Schnee R, Sinnis C, Shoup A, Stark MJ, Weeks DD, Williams DA, Wu JP, Yang T, Yodh GB, Zhang WP. New limit on the rate-density of evaporating black holes. Phys Rev Lett 1993; 71:2524-2527. [PMID: 10054704 DOI: 10.1103/physrevlett.71.2524] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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25
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Ni B, Arnold K, Chmely F, Cooper MD, Eckhause M, Guss PP, Hoffman CM, Hogan GE, Hughes VW, Kane JR, Kettell SH, Kuang Y, Markey J, Matthias BE, Mischke RE, Orth H, Piilonen LE, Reidy J, Schaefer HR, Williams RA, Woodle KA. Search for spontaneous conversion of muonium to antimuonium. Int J Clin Exp Med 1993; 48:1976-1989. [PMID: 10016434 DOI: 10.1103/physrevd.48.1976] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Alexandreas DE, Allen RC, Berley D, Biller SD, Burman RL, Cady DR, Chang CY, Dingus BL, Dion GM, Ellsworth RW, Gilra MK, Goodman JA, Gupta S, Haines TJ, Hoffman CM, Krakauer DA, Kwok P, Lloyd-Evans J, Lu XQ, Nagle DE, Potter ME, Sandberg VD, Stark MJ, Talaga RL, Vishwanath PR, Yodh GB, Zhang W. Observation of shadowing of ultrahigh-energy cosmic rays by the Moon and the Sun. Phys Rev D Part Fields 1991; 43:1735-1738. [PMID: 10013548 DOI: 10.1103/physrevd.43.1735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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27
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Alexandreas DE, Allen RC, Berley D, Biller SD, Burman RL, Cady R, Chang CY, Dingus BL, Dion GM, Ellsworth RW, Goodman JA, Haines TJ, Hoffman CM, Lloyd-Evans J, Lu XQ, Nagle DE, Potter ME, Sandberg VD, Stark MJ, Talaga RL, Vishwanath PR, Yodh GB, Zhang W. Study of Cygnus X-3 at ultrahigh energies during the 1989 radio outbursts. Phys Rev Lett 1990; 64:2973-2975. [PMID: 10041862 DOI: 10.1103/physrevlett.64.2973] [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: 05/23/2023]
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28
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Haines TJ, Alexandreas DE, Allen RC, Biller S, Berley D, Burman RL, Cady DR, Chang CY, Dingus BL, Dion GM, Ellsworth RW, Goodman JA, Hoffman CM, Lloyd-Evans J, Nagle DE, Potter M, Sandberg VD, Wilkinson CA, Yodh GB. Limit on possible energy-dependent velocities for massless particles. Phys Rev D Part Fields 1990; 41:692-694. [PMID: 10012379 DOI: 10.1103/physrevd.41.692] [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: 05/22/2023]
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29
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Raby S, West GB, Hoffman CM. Are there really any experimental limits on a light Higgs boson? Phys Rev D Part Fields 1989; 39:828-833. [PMID: 9959709 DOI: 10.1103/physrevd.39.828] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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30
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Bolton RD, Cooper MD, Frank JS, Hallin AL, Heusi PA, Hoffman CM, Hogan GE, Mariam FG, Matis HS, Mischke RE, Piilonen LE, Sandberg VD, Sanders GH, Sennhauser U, Werbeck R, Williams RA, Wilson SL, Hofstadter R, Hughes EB, Ritter MW, Grosnick D, Wright SC, Highland VL, McDonough J. Search for rare muon decays with the Crystal Box detector. Phys Rev D Part Fields 1988; 38:2077-2101. [PMID: 9959361 DOI: 10.1103/physrevd.38.2077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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31
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McDonough J, Highland VL, McFarlane WK, Bolton RD, Cooper MD, Frank JS, Hallin AL, Heusi P, Hoffman CM, Hogan GE, Mariam FG, Mischke RE, Piilonen LE, Sandberg VD, Sennhauser U, Werbeck RD, Williams RA, Wilson SL, Grosnick DP, Wright SC. New searches for the C-noninvariant decay pi 0-->3 gamma and the rare decay pi 0-->4 gamma. Phys Rev D Part Fields 1988; 38:2121-2128. [PMID: 9959363 DOI: 10.1103/physrevd.38.2121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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32
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Ni B, Arnold K, Chmely F, Hughes VW, Kettell SH, Kuang Y, Markey J, Matthias BE, Orth H, Schaefer HR, Woodle K, Cooper MD, Hoffman CM, Hogan GE, Mischke RE, Piilonen LE, Williams RA, Eckhause M, Guss P, Kane J, Reidy J. Search for spontaneous conversion of muonium to antimuonium. Phys Rev Lett 1987; 59:2716-2719. [PMID: 10035630 DOI: 10.1103/physrevlett.59.2716] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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33
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Goldman T, Hallin AL, Hoffman CM, Piilonen LE, Preston D, Bolton RD, Cooper MD, Frank JS, Heusi PA, Hogan GE, Mariam FG, Matis HS, Mischke RE, Sandberg VD, Sanders GH, Sennhauser U, Werbeck R, Williams RA, Grosnick D, Wright SC, Wilson SL, Hofstadter R, Hughes EB, Ritter MW, Highland VL, McDonough J. Light-boson emission in the decay of the micro+. Phys Rev D Part Fields 1987; 36:1543-1546. [PMID: 9958331 DOI: 10.1103/physrevd.36.1543] [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: 05/22/2023]
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34
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Grosnick D, Wright SC, Bolton RD, Cooper MD, Frank JS, Hallin AL, Heusi PA, Hoffman CM, Hogan GE, Mariam FG, Matis HS, Mischke RE, Piilonen LE, Sandberg VD, Sanders GH, Sennhauser U, Werbeck R, Williams RA, Wilson SL, Hofstadter R, Hughes EB, Ritter MW, Highland VL, McDonough J. Search for the rare decay micro+-->e+ gamma gamma. Phys Rev Lett 1986; 57:3241-3244. [PMID: 10033995 DOI: 10.1103/physrevlett.57.3241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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35
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Hoffman CM. Short-lived axions and kaon decay. Phys Rev D Part Fields 1986; 34:2167. [PMID: 9957400 DOI: 10.1103/physrevd.34.2167] [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: 05/22/2023]
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Piilonen LE, Bolton RD, Cooper MD, Frank JS, Hallin AL, Heusi P, Hogan GE, Hoffman CM, Mariam FG, Mischke RE, Sandberg VD, Williams RA, Wilson SL, Highland VL, McDonough J, Grosnick D, Wright SC, Ritter M. Unique determination of the form-factor ratio in radiative pion decay. Phys Rev Lett 1986; 57:1402-1405. [PMID: 10033440 DOI: 10.1103/physrevlett.57.1402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Bolton RD, Bowman JD, Cooper MD, Frank JS, Hallin AL, Heusi PA, Hoffman CM, Hogan GE, Mariam FG, Matis HS, Mischke RE, Nagle DE, Piilonen LE, Sandberg VD, Sanders GH, Sennhauser U, Werbeck R, Williams RA, Wilson SL, Hofstadter R, Hughes EB, Ritter MW, Grosnick D, Wright SC, Highland VL, McDonough J. Search for the decay micro+-->e+ gamma. Phys Rev Lett 1986; 56:2461-2464. [PMID: 10032999 DOI: 10.1103/physrevlett.56.2461] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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McFarlane WK, Auerbach LB, Gaille FC, Highland VL, Jastrzembski E, Macek RJ, Cverna FH, Hoffman CM, Hogan GE, Morgado RE, Pratt JC, Werbeck RD. Measurement of the rate for pion beta decay. Phys Rev D Part Fields 1985; 32:547-565. [PMID: 9956176 DOI: 10.1103/physrevd.32.547] [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: 05/22/2023]
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Hoffman CM, Karu AE, Dev J. Renin-angiotensin system during labor: evaluation of renin activity in normal, pre-eclamptic, and pre-existing hypertensive patients. Am J Obstet Gynecol 1973; 117:537-43. [PMID: 4355173] [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: 01/10/2023]
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Abstract
Abstract
A controlled study was carried out on 600 samples of various types of white and colored paper obtained from 10 different paper manufacturers with known production histories and dates. Neutron activation analysis was employed to measure the characterizing trace elemental compositions. Results indicated that (1) the papers examined were uniform with respect to their trace elemental compositions, (2) papers produced by different manufacturers are readily distinguishable qualitatively and/or quantitatively, (3) different batches of paper produced by the same manufacturer are generally qualitatively similar if produced within a short span of time (however, these specimens can be distinguished by quantitative analysis of the trace elements), and (4) different batches of paper produced by the same manufacturer at least 1 year apart are readily distinguishable qualitatively and/or quantitatively.
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Affiliation(s)
- R L Brunelle
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - W D Washington
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - C M Hoffman
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - M J Pro
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
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Hoffman CM, Canby JP. Treatment of hemorrhagic shock. Pediatrics 1970; 45:342-3. [PMID: 5413408] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Brunelle RL, Hoffman CM, Snow KB, Pro MJ. Neutron Activation and Atomic Absorption Analyses of Chemical Elements in Soil. J AOAC Int 1969. [DOI: 10.1093/jaoac/52.5.911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Procedures are described for the determination of about 20 chemical elements in soil by NAA and AAA. It is shown that the combination of these techniques is particularly suitable for soil analysis, because a large number of both major and minor elements can be determined with good precision and accuracy.
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Affiliation(s)
- R L Brunelle
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - C M Hoffman
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - K B Snow
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
| | - M J Pro
- Alcohol, Tobacco and Firearms Division, Internal Revenue Service, Washington, D.C. 20224
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Pro MJ, Hoffman CM. Advanced Instrumentation in Forensic Examinations. J AOAC Int 1967. [DOI: 10.1093/jaoac/50.5.1041] [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]
Affiliation(s)
- M J Pro
- National Office Laboratory, Alcohol and Tobacco Tax Division, Internal Revenue Service, Washington, D.C. 20224
| | - C M Hoffman
- National Office Laboratory, Alcohol and Tobacco Tax Division, Internal Revenue Service, Washington, D.C. 20224
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Schlesinger HL, Hoffman CM, Pro MJ. Identification of Bullet Holes by Residue Transfer. J AOAC Int 1967. [DOI: 10.1093/jaoac/50.2.376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Antimony and copper residues deposited on the bullet surface after explosion of a pistol cartridge were measured by neutron activation analysis. The amount of residue wiped from the bullet surface upon passage through various target materials was determined. Correlations were found between the residue deposited on the target material and the bullet jacketing, caliber, and configuration
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Affiliation(s)
- H L Schlesinger
- Alcohol and Tobacco Tax Division, Laboratory Branch, Internal Revenue Service, Washington, D.C. 20224
| | - C M Hoffman
- Alcohol and Tobacco Tax Division, Laboratory Branch, Internal Revenue Service, Washington, D.C. 20224
| | - M J Pro
- Alcohol and Tobacco Tax Division, Laboratory Branch, Internal Revenue Service, Washington, D.C. 20224
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Scott JE, Hoffman CM, Pro MJ, Schlesinger HL. Comparison of Adhesive Tapes by Neutron Activation Analysis. J AOAC Int 1967. [DOI: 10.1093/jaoac/50.2.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Adhesive tapes were compared by nondestructive gamma-ray spectrometry. Results show that neutron activation analysis can he used to characterize tapes through their elemental composition. Differences between manufacturers as well as hatch-tobatch and in-batch variations can be measured by neutron activation analysis.
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Affiliation(s)
- J E Scott
- Bureau of Chief Postal Inspector, Post Office Departnient, Washington, D.C. 20260
| | - C M Hoffman
- Alcohol and Tobacco Tax Division, Internal Revenue Service, Washington, D.C. 20224
| | - M J Pro
- Alcohol and Tobacco Tax Division, Internal Revenue Service, Washington, D.C. 20224
| | - H L Schlesinger
- Alcohol and Tobacco Tax Division, Internal Revenue Service, Washington, D.C. 20224
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Schlesinger HL, Pro MJ, Hoffman CM, Cohan M. Activation Analysis of Drugs. J AOAC Int 1965. [DOI: 10.1093/jaoac/48.6.1139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Activation analysis has been employed to compare and determine the source of manufacture of drugs. The irradiations were carried out with the DASA-TRIGA1 and Naval Research Laboratory nuclear reactors,2 and the induced radionuclides were identified by nondestructive gamma-ray spectrometry. The results show that the technique can be a useful tool for the identification of trace elements which serve to characterize drugs.
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Affiliation(s)
| | - M J Pro
- Internal Revenue Service, Washington, D.C
| | | | - M Cohan
- Armed Forces Radiobiologv Research Institute, Bethesda, Md
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