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Heuchel L, Hahn C, Pawelke J, Singers B, ørensen S, Dosanjh M, Lühr A. OC-0417 Is a variable proton RBE considered in clinical practice? - ESTRO survey among 25 proton centres. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06904-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Koemans WJ, Houwink A, van der Kaaij RT, Wassenaar ECE, Boerma D, Hahn C, Imhof O, Brandt MG, Ariëns MP, Veenhof AAFA, Hartemink KJ, van Sandick JW. Perioperative Management of Gastric Cancer Patients Treated With (Sub)Total Gastrectomy, Cytoreductive Surgery, and Hyperthermic Intraperitoneal Chemotherapy (HIPEC): Lessons Learned. Ann Surg Oncol 2021; 28:4647-4654. [PMID: 33389293 DOI: 10.1245/s10434-020-09465-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 11/25/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND The PERISCOPE I study was designed to assess the safety and feasibility of (sub)total gastrectomy, cytoreductive surgery (CRS), and hyperthermic intraperitoneal chemotherapy (HIPEC) with oxaliplatin and docetaxel for gastric cancer patients who have limited peritoneal dissemination. The current analysis investigated changes in perioperative management together with their impact on postoperative outcomes. METHODS Patients with resectable gastric cancer and limited peritoneal dissemination were administered (sub)total gastrectomy, CRS, and HIPEC with oxaliplatin (460 mg/m2) and docetaxel (escalating scheme: 0, 50, 75 mg/m2). Of the 25 patients who completed the study protocol, 14 were treated in the dose-escalation cohort and 11 were treated in the expansion cohort (to optimize perioperative management). RESULTS A significant proportion of the patients in the dose-escalation cohort (n = 7, 50%) had ileus-related complications. In this cohort, enteral nutrition was started immediately after surgery at 20 ml/h, which was increased on day 1 to meet nutritional needs. In the expansion cohort, enteral nutrition was administered at 10 ml/h until day 3, then restricted to 20 ml/h until day 6, supplemented with total parenteral nutrition to meet nutritional needs. Ileus-related complications occurred for two patients (18%) of the expansion cohort. The intensive care unit (ICU) readmission rate decreased from 50 (n = 7) to 9% (n = 1; p = 0.04). CONCLUSION The implementation of a strict nutritional protocol during the PERISCOPE I study was associated with a decrease in postoperative complications. Based on these results, a perioperative care path was described for the gastric cancer HIPEC patients in the PERISCOPE II study.
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Affiliation(s)
- W J Koemans
- Department of Surgical Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - A Houwink
- Department of Anesthesiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.,Department of Intensive Care Medicine, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - R T van der Kaaij
- Department of Surgical Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - E C E Wassenaar
- Department of Dietetics, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - D Boerma
- Department of Dietetics, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - C Hahn
- Department of Anesthesiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - O Imhof
- Clinical Perfusion, Heartbeat, Eemnes, The Netherlands
| | - M G Brandt
- Department of Surgery, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - M P Ariëns
- Department of Surgery, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - A A F A Veenhof
- Department of Surgical Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - K J Hartemink
- Department of Surgical Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - J W van Sandick
- Department of Surgical Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
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Grimison P, Mersiades A, Kirby A, Lintzeris N, Morton R, Haber P, Olver I, Walsh A, McGregor I, Cheung Y, Tognela A, Hahn C, Briscoe K, Aghmesheh M, Fox P, Abdi E, Clarke S, Della-Fiorentina S, Shannon J, Gedye C, Begbie S, Simes J, Stockler M. Oral THC:CBD cannabis extract for refractory chemotherapy-induced nausea and vomiting: a randomised, placebo-controlled, phase II crossover trial. Ann Oncol 2020; 31:1553-1560. [DOI: 10.1016/j.annonc.2020.07.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/14/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022] Open
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Christodouleas JP, Anderson N, Gabriel P, Greene R, Hahn C, Kessler S, Mayo CS, McNutt T, Shulman LN, Smith BD, West J, Williamson T. A Multidisciplinary Consensus Recommendation on a Synoptic Radiation Treatment Summary: A Commission on Cancer Workgroup Report. Pract Radiat Oncol 2020; 10:389-401. [PMID: 31988040 DOI: 10.1016/j.prro.2020.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 12/09/2019] [Accepted: 01/11/2020] [Indexed: 10/25/2022]
Abstract
PURPOSE The radiation treatment summary provides a clinical and technical overview of a patient's full course of radiation therapy. Despite its importance to multiple stakeholders, there is no widely followed radiation treatment summary template. METHODS AND MATERIALS The Commission on Cancer convened a multistakeholder workgroup to develop a synoptic radiation treatment summary template. The workgroup included individuals with expertise in radiation, medical and surgical oncology, medical physics, oncology informatics, cancer registry, electronic medical record systems, treatment planning systems, and registry information systems. The workgroup iterated a template until consensus was achieved. RESULTS The consensus radiation treatment summary template is divided into 3 sections that allows for a mix of structured and free text. The first section, "Radiation Course Summary," is meant to provide information that is of broad interest and in a manner that is potentially accessible to patients, their families, and nononcology-trained care team members. The second section, "Anatomic Target Summary," provides information that is potentially useful to oncology-trained care team members who will be primarily interested in which anatomies were irradiated, by what modality, and to what cumulative dose. The third section, "Delivered Prescriptions," summarizes technical information that is primarily of interest and accessible to radiation oncology-trained clinicians, registrars, and researchers. CONCLUSIONS We have proposed a consensus template with 3 sections to meet the needs of a diverse set of consumers. We recommend that providers, professional societies, and accreditation bodies with interest in the radiation treatment summary continue collaborative efforts to test, iterate, and drive adoption of a synoptic template.
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Affiliation(s)
- John P Christodouleas
- Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania; Elekta, Inc, Atlanta, Georgia.
| | - Nathan Anderson
- Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Peter Gabriel
- Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rick Greene
- Levine Cancer Institute, Charlotte, North Carolina
| | - Carol Hahn
- Department of Radiation Oncology, Duke University, North Carolina
| | | | - Charles S Mayo
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Todd McNutt
- Department of Radiation Oncology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Lawrence N Shulman
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Benjamin D Smith
- The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Ted Williamson
- Onco Inc, Wall Township, New Jersey; Salem Health Radiation Oncology, Salem, Oregon
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Licka T, Van den Hoven R, Schröder U, Hahn C, Zsoldos R. P.73Correlation of gluteus medius muscle activities at walk and trot with myopathy changes on biopsies of the exact same locations in horses without clinical signs of type 1 polysaccharide storage myopathy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Koemans WJ, van der Kaaij RT, Boot H, Buffart T, Veenhof AAFA, Hartemink KJ, Grootscholten C, Snaebjornsson P, Retel VP, van Tinteren H, Vanhoutvin S, van der Noort V, Houwink A, Hahn C, Huitema ADR, Lahaye M, Los M, van den Barselaar P, Imhof O, Aalbers A, van Dam GM, van Etten B, Wijnhoven BPL, Luyer MDP, Boerma D, van Sandick JW. Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy versus palliative systemic chemotherapy in stomach cancer patients with peritoneal dissemination, the study protocol of a multicentre randomised controlled trial (PERISCOPE II). BMC Cancer 2019; 19:420. [PMID: 31060544 PMCID: PMC6501330 DOI: 10.1186/s12885-019-5640-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 04/25/2019] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND At present, palliative systemic chemotherapy is the standard treatment in the Netherlands for gastric cancer patients with peritoneal dissemination. In contrast to lymphatic and haematogenous dissemination, peritoneal dissemination may be regarded as locoregional spread of disease. Administering cytotoxic drugs directly into the peritoneal cavity has an advantage over systemic chemotherapy since high concentrations can be delivered directly into the peritoneal cavity with limited systemic toxicity. The combination of a radical gastrectomy with cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) has shown promising results in patients with gastric cancer in Asia. However, the results obtained in Asian patients cannot be extrapolated to Western patients. The aim of this study is to compare the overall survival between patients with gastric cancer with limited peritoneal dissemination and/or tumour positive peritoneal cytology treated with palliative systemic chemotherapy, and those treated with gastrectomy, CRS and HIPEC after neoadjuvant systemic chemotherapy. METHODS In this multicentre randomised controlled two-armed phase III trial, 106 patients will be randomised (1:1) between palliative systemic chemotherapy only (standard treatment) and gastrectomy, CRS and HIPEC (experimental treatment) after 3-4 cycles of systemic chemotherapy.Patients with gastric cancer are eligible for inclusion if (1) the primary cT3-cT4 gastric tumour including regional lymph nodes is considered to be resectable, (2) limited peritoneal dissemination (Peritoneal Cancer Index < 7) and/or tumour positive peritoneal cytology are confirmed by laparoscopy or laparotomy, and (3) systemic chemotherapy was given (prior to inclusion) without disease progression. DISCUSSION The PERISCOPE II study will determine whether gastric cancer patients with limited peritoneal dissemination and/or tumour positive peritoneal cytology treated with systemic chemotherapy, gastrectomy, CRS and HIPEC have a survival benefit over patients treated with palliative systemic chemotherapy only. TRIAL REGISTRATION clinicaltrials.gov NCT03348150 ; registration date November 2017; first enrolment November 2017; expected end date December 2022; trial status: Ongoing.
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Affiliation(s)
- W J Koemans
- Department of Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands.
| | - R T van der Kaaij
- Department of Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - H Boot
- Department of Gastro-Intestinal Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - T Buffart
- Department of Gastro-Intestinal Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - A A F A Veenhof
- Department of Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - K J Hartemink
- Department of Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - C Grootscholten
- Department of Gastro-Intestinal Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - P Snaebjornsson
- Department of Pathology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - V P Retel
- Department of Psychosocial Research and Epidomiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - H van Tinteren
- Department of Biometrics, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - S Vanhoutvin
- Department of Biometrics, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - V van der Noort
- Department of Biometrics, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - A Houwink
- Department of Anaesthesiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - C Hahn
- Department of Anaesthesiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - A D R Huitema
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - M Lahaye
- Department of Radiology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066CX, Amsterdam, The Netherlands
| | - M Los
- Department of Oncology, Sint Antonius Hospital, Koekoekslaan 1, Nieuwegein, 3435 CM, The Netherlands
| | - P van den Barselaar
- Clinical perfusion, Heartbeat, Kerkstraat 3A, Eemnes, 3755 CK, The Netherlands
| | - O Imhof
- Clinical perfusion, Heartbeat, Kerkstraat 3A, Eemnes, 3755 CK, The Netherlands
| | - A Aalbers
- Department of Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
| | - G M van Dam
- Department of Surgery, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - B van Etten
- Department of Surgery, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713 GZ, The Netherlands
| | - B P L Wijnhoven
- Department of Surgery, Erasmus Medical Center, Doctor Molewaterplein 40, Rotterdam, 3015 GD, The Netherlands
| | - M D P Luyer
- Department of Surgery, Catharina Hospital, Michelangelolaan 2, Eindhoven, 5623 EJ, The Netherlands
| | - D Boerma
- Department of Surgery, Sint Antonius Hospital, Koekoekslaan 1, Nieuwegein, 3435 CM, The Netherlands
| | - J W van Sandick
- Department of Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, Amsterdam, 1066CX, The Netherlands
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Mersiades A, Tognela A, Haber P, Stockler M, Lintzeris N, Simes J, McGregor I, Olver I, Allsop D, Gedye C, Kirby A, Morton R, Briscoe K, Fox P, Aghmesheh M, Wong N, Bhardwaj A, Tran A, Hahn C, Grimison P. Pilot and definitive randomised double-blind placebo-controlled trials evaluating an oral cannabinoid-rich THC/CBD cannabis extract for secondary prevention of chemotherapy-induced nausea and vomiting (CINV). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.119] [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: 11/14/2022] Open
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Hahn C, Hans M, Hein C, Mancinelli RL, Mücklich F, Wirth R, Rettberg P, Hellweg CE, Moeller R. Pure and Oxidized Copper Materials as Potential Antimicrobial Surfaces for Spaceflight Activities. Astrobiology 2017; 17:1183-1191. [PMID: 29116818 DOI: 10.1089/ast.2016.1620] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Microbial biofilms can lead to persistent infections and degrade a variety of materials, and they are notorious for their persistence and resistance to eradication. During long-duration space missions, microbial biofilms present a danger to crew health and spacecraft integrity. The use of antimicrobial surfaces provides an alternative strategy for inhibiting microbial growth and biofilm formation to conventional cleaning procedures and the use of disinfectants. Antimicrobial surfaces contain organic or inorganic compounds, such as antimicrobial peptides or copper and silver, that inhibit microbial growth. The efficacy of wetted oxidized copper layers and pure copper surfaces as antimicrobial agents was tested by applying cultures of Escherichia coli and Staphylococcus cohnii to these metallic surfaces. Stainless steel surfaces were used as non-inhibitory control surfaces. The production of reactive oxygen species and membrane damage increased rapidly within 1 h of exposure on pure copper surfaces, but the effect on cell survival was negligible even after 2 h of exposure. However, longer exposure times of up to 4 h led to a rapid decrease in cell survival, whereby the survival of cells was additionally dependent on the exposed cell density. Finally, the release of metal ions was determined to identify a possible correlation between copper ions in suspension and cell survival. These measurements indicated a steady increase of free copper ions, which were released indirectly by cells presumably through excreted complexing agents. These data indicate that the application of antimicrobial surfaces in spaceflight facilities could improve crew health and mitigate material damage caused by microbial contamination and biofilm formation. Furthermore, the results of this study indicate that cuprous oxide layers were superior to pure copper surfaces related to the antimicrobial effect and that cell density is a significant factor that influences the time dependence of antimicrobial activity. Key Words: Contact killing-E. coli-S. cohnii-Antimicrobial copper surfaces-Copper oxide layers-Human health-Planetary protection. Astrobiology 17, 1183-1191.
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Affiliation(s)
- C Hahn
- 1 German Aerospace Center (DLR), Institute of Aerospace Medicine , Radiation Biology Department, Cologne (Köln), Germany
| | - M Hans
- 2 Functional Materials, Saarland University , Saarbrücken, Germany
| | - C Hein
- 3 Inorganic Solid State Chemistry, Saarland University , Saarbrücken, Germany
| | - R L Mancinelli
- 4 Bay Area Environmental Research Institute, NASA Ames Research Center , Moffett Field, California, USA
| | - F Mücklich
- 2 Functional Materials, Saarland University , Saarbrücken, Germany
| | - R Wirth
- 5 Microbiology, University of Regensburg , Regensburg, Germany
| | - P Rettberg
- 1 German Aerospace Center (DLR), Institute of Aerospace Medicine , Radiation Biology Department, Cologne (Köln), Germany
| | - C E Hellweg
- 1 German Aerospace Center (DLR), Institute of Aerospace Medicine , Radiation Biology Department, Cologne (Köln), Germany
| | - R Moeller
- 1 German Aerospace Center (DLR), Institute of Aerospace Medicine , Radiation Biology Department, Cologne (Köln), Germany
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Hanche-Olsen S, Matiasek K, Molín J, Rosati M, Hahn C, Hultin Jäderlund K, Gröndahl G. Acquired equine polyneuropathy of Nordic horses: A conspicuous inclusion body schwannopathy. Neuromuscul Disord 2017; 27:931-941. [DOI: 10.1016/j.nmd.2017.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 04/20/2017] [Accepted: 06/10/2017] [Indexed: 01/02/2023]
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Singhal D, Wee L, Babic M, Parker W, Moore S, Feng J, Schreiber A, Geoghegan J, Kutyna M, Chhetri R, Nath S, Singhal N, Gowda R, Ross D, To L, D’Andrea R, Lewis I, Hahn C, Scott H, Hiwase D. Therapy Related Myeloid Neoplasms (T-MN) Show High Mutation Frequency and a Spectrum Different from Primary MDS. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30389-2] [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: 11/16/2022]
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Lutz S, Balboni T, Jones J, Lo S, Petit J, Rich SE, Wong R, Hahn C. Palliative radiation therapy for bone metastases: Update of an ASTRO Evidence-Based Guideline. Pract Radiat Oncol 2016; 7:4-12. [PMID: 27663933 DOI: 10.1016/j.prro.2016.08.001] [Citation(s) in RCA: 265] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 07/15/2016] [Accepted: 08/03/2016] [Indexed: 12/25/2022]
Abstract
PURPOSE The purpose is to provide an update the Bone Metastases Guideline published in 2011 based on evidence complemented by expert opinion. The update will discuss new high-quality literature for the 8 key questions from the original guideline and implications for practice. METHODS AND MATERIALS A systematic PubMed search from the last date included in the original Guideline yielded 414 relevant articles. Ultimately, 20 randomized controlled trials, 32 prospective nonrandomized studies, and 4 meta-analyses/pooled analyses were selected and abstracted into evidence tables. The authors synthesized the evidence and reached consensus on the included recommendations. RESULTS Available literature continues to support pain relief equivalency between single and multiple fraction regimens for bone metastases. High-quality data confirm single fraction radiation therapy may be delivered to spine lesions with acceptable late toxicity. One prospective, randomized trial confirms both peripheral and spine-based painful metastases can be successfully and safely palliated with retreatment for recurrence pain with adherence to published dosing constraints. Advanced radiation therapy techniques such as stereotactic body radiation therapy lack high-quality data, leading the panel to favor its use on a clinical trial or when results will be collected in a registry. The panel's conclusion remains that surgery, radionuclides, bisphosphonates, and kyphoplasty/vertebroplasty do not obviate the need for external beam radiation therapy. CONCLUSION Updated data analysis confirms that radiation therapy provides excellent palliation for painful bone metastases and that retreatment is safe and effective. Although adherence to evidence-based medicine is critical, thorough expert radiation oncology physician judgment and discretion regarding number of fractions and advanced techniques are also essential to optimize outcomes when considering the patient's overall health, life expectancy, comorbidities, tumor biology, anatomy, previous treatment including prior radiation at or near current site of treatment, tumor and normal tissue response history to local and systemic therapies, and other factors related to the patient, tumor characteristics, or treatment.
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Affiliation(s)
- Stephen Lutz
- Department of Radiation Oncology, Eastern Woods Radiation Oncology, 15990 Medical Drive South, Findlay, Ohio 45840.
| | - Tracy Balboni
- Department of Radiation Oncology, and Department of Psychosocial Oncology and Palliative Care Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Joshua Jones
- Department of Radiation Oncology, University of Pennsylvania Health System, Philadelphia, Pennsylvania
| | - Simon Lo
- Department of Radiation Oncology, University of Washington School of Medicine, Seattle, Washington
| | - Joshua Petit
- Department of Radiation Oncology, University of Colorado Health, Fort Collins, Colorado
| | - Shayna E Rich
- Hospice and Palliative Medicine, Mayo Clinic College of Medicine, Jacksonville, Florida
| | - Rebecca Wong
- Department of Radiation Oncology, Princess Margaret Hospital, Toronto, Ontario, Canada
| | - Carol Hahn
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
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Sheng Y, Li T, Yoo S, Yin F, Blitzblau R, Horton J, Palta M, Hahn C, Ge Y, Wu Q. WE-AB-209-05: Development of an Ultra-Fast High Quality Whole Breast Radiotherapy Treatment Planning System. Med Phys 2016. [DOI: 10.1118/1.4957774] [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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13
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Hahn C, Weber G, Märtin R, Höfer S, Kämpfer T, Stöhlker T. CdTe Timepix detectors for single-photon spectroscopy and linear polarimetry of high-flux hard x-ray radiation. Rev Sci Instrum 2016; 87:043106. [PMID: 27131653 DOI: 10.1063/1.4945362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Single-photon spectroscopy of pulsed, high-intensity sources of hard X-rays - such as laser-generated plasmas - is often hampered by the pileup of several photons absorbed by the unsegmented, large-volume sensors routinely used for the detection of high-energy radiation. Detectors based on the Timepix chip, with a segmentation pitch of 55 μm and the possibility to be equipped with high-Z sensor chips, constitute an attractive alternative to commonly used passive solutions such as image plates. In this report, we present energy calibration and characterization measurements of such devices. The achievable energy resolution is comparable to that of scintillators for γ spectroscopy. Moreover, we also introduce a simple two-detector Compton polarimeter setup with a polarimeter quality of (98 ± 1)%. Finally, a proof-of-principle polarimetry experiment is discussed, where we studied the linear polarization of bremsstrahlung emitted by a laser-driven plasma and found an indication of the X-ray polarization direction depending on the polarization state of the incident laser pulse.
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Affiliation(s)
- C Hahn
- Helmholtz Institute Jena, 07743 Jena, Germany
| | - G Weber
- Helmholtz Institute Jena, 07743 Jena, Germany
| | - R Märtin
- Helmholtz Institute Jena, 07743 Jena, Germany
| | - S Höfer
- Helmholtz Institute Jena, 07743 Jena, Germany
| | - T Kämpfer
- Helmholtz Institute Jena, 07743 Jena, Germany
| | - Th Stöhlker
- Helmholtz Institute Jena, 07743 Jena, Germany
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Zhang C, Phan P, Geer D, Hahn C, Farmery A. P84 The InspiWave (TM) trial on adult healthy volunteers – insights gleaned from postural studies. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hahn C, Kavanagh B, Bhatnagar A, Jacobson G, Lutz S, Patton C, Potters L, Steinberg M. Choosing wisely: the American Society for Radiation Oncology's top 5 list. Pract Radiat Oncol 2015; 4:349-55. [PMID: 25407853 DOI: 10.1016/j.prro.2014.06.003] [Citation(s) in RCA: 90] [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] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 06/10/2014] [Indexed: 12/25/2022]
Abstract
PURPOSE To highlight 5 interventions that patients should question, as part of the Choosing Wisely campaign. This initiative, led by the American Board of Internal Medicine Foundation, fosters conversations between physicians and patients about treatments and tests that may be overused, unnecessary, or potentially harmful. METHODS AND MATERIALS Potential items were initially compiled using an online survey. They were then evaluated and refined by a work group representing the American Society for Radiation Oncology (ASTRO) Clinical Affairs and Quality, Health Policy, and Government Relations Councils. Literature reviews were carried out to support the recommendation and narrative, as well as to provide references for each item. A final list of 5 items was then selected by the ASTRO Board of Directors. RESULTS ASTRO's 5 recommendations for the Choosing Wisely campaign are the following: (1) Don't initiate whole-breast radiation therapy as a part of breast conservation therapy in women age ≥50 with early-stage invasive breast cancer without considering shorter treatment schedules; (2) don't initiate management of low-risk prostate cancer without discussing active surveillance; (3) don't routinely use extended fractionation schemes (>10 fractions) for palliation of bone metastases; (4) don't routinely recommend proton beam therapy for prostate cancer outside of a prospective clinical trial or registry; and (5) don't routinely use intensity modulated radiation therapy to deliver whole-breast radiation therapy as part of breast conservation therapy. CONCLUSIONS The ASTRO list for the Choosing Wisely campaign highlights radiation oncology interventions that should be discussed between physicians and patients before treatment is initiated. These 5 items provide opportunities to offer higher quality and less costly care.
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Affiliation(s)
- Carol Hahn
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina.
| | - Brian Kavanagh
- Department of Radiation Oncology, University of Colorado, Denver, Colorado
| | - Ajay Bhatnagar
- Cancer Treatment Services Arizona, Affiliate of 21st Century Oncology, Casa Grande, Arizona
| | - Geraldine Jacobson
- Department of Radiation Oncology, West Virginia University, Morgantown, West Virginia
| | - Stephen Lutz
- Blanchard Valley Regional Cancer Center, Findlay, Ohio
| | | | - Louis Potters
- Department of Radiation Medicine, North Shore-LIJ Health System, New Hyde Park, New York
| | - Michael Steinberg
- Department of Radiation Oncology, David Geffen School of Medicine, University of California Health System, Los Angeles, California
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Stein S, Cong X, Yao X, Hahn C, Li J, Kortmansky JS, Chang BW, Cha C, Salem RR, Hochster HS, Lacy J. Phase II study of Yale modified FOLFIRINOX (mFOLFIRINOX) in locally advanced pancreatic cancer (LAPC). J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.e15274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Stacey Stein
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | - Xiangyu Cong
- Yale Center for Analytical Sciences, New Haven, CT
| | - Xiaopan Yao
- Yale Center for Analytical Sciences, New Haven, CT
| | | | - Jia Li
- Yale School of Medicine, New Haven, CT
| | | | | | - Charles Cha
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Ronald R Salem
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Howard S. Hochster
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | - Jill Lacy
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
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Hahn C, Tyka K, Lenzen S, Gurgul-Convey E. Sphingosine-1-Phosphat-Lyase und zytokinvermittelter ER-Stress in insulinproduzierenden INS1E Zellen. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hiwase D, Moore S, Hahn C, Kutyna M, Van Der Hoek M, Fraser R, Chhetri R, Singhal D, Lewis I, Bardy P, To LB, Scott H. 154 TARGETED MUTATION SEQUENCING AND SNP-MICRORRAY CAN IDENTIFY POOR PROGNOSTIC GROUP IN IPSS-LOWER RISK GROUP. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30155-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hiwase D, Hahn C, Babic M, Moore S, Singhal D, Kutyna M, Chhetri R, Lopez A, Heatley S, Feng J, Bardy P, Ross D, Lewis I, To B, Schreiber A, Scott H. 153 MULTIPLE MUTATIONS IN THE SAME GENE SUGGEST CLONAL DIVERSITY AND IS ASSOCIATED WITH POOR PROGNOSIS IN MDS. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30154-5] [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: 11/17/2022]
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20
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James ES, Cong X, Yao X, Hahn C, Kaley K, Li J, Kortmansky JS, Fischbach NA, Cha C, Salem RR, Stein S, Hochster HS, Lacy J. Final analysis of a phase II study of Yale-modified FOLFIRINOX (mFOLFIRINOX) in metastatic pancreatic cancer (MPC). J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.3_suppl.395] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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
395 Background: Although FOLFIRINOX is superior to gemcitabine in MPC, the regimen is associated with significant toxicities (Conroy et al. N Engl J Med 2011;364:1817). In our prior retrospective analysis, efficacy was not compromised by dose attenuations of FOLFIRINOX (Gunturu et al. Med Oncol 2013;30:361). Based on this analysis, a prospective phase II open label study to evaluate the efficacy and tolerability of mFOLFIRINOX in pts with locally advanced (LAPC) and MPC was conducted. Herein, we report the final analysis of the toxicity in LAPC and MPC, and the efficacy in MPC. Methods: Previously untreated pts with MPC or LAPC received mFOLFIRINOX every two wks with 25% dose reductions of irinotecan & bolus 5FU until progression, unacceptable toxicity, or surgical resection. All pts received prophylactic pegfilgrastim. CAT scans were obtained every 4 cycles for response assessment by RECIST. Toxicities in the entire cohort, and response rate (RR) & pt characteristics in the MPC cohort were compared to historical data reported by Conroy. PFS was determined for MPC cohort. Results: 31 pts with LAPC and 43 pts with MPC with ECOG PS 0/1 were enrolled between 11/11 and 01/14. Characteristics of evaluable (37/43) MPC pts were: med age, 61 yrs (range 50-76); male, 21; ECOG PS 0, 17; med # metastatic sites, 2; peritoneal disease, 14; biliary stent, 9; med # of cycles 10 (range 4-31). Grade 3/4 toxicities in entire cohort were: vomiting & peripheral neuropathy, 2.7%; ALT elevated, thromboembolism and febrile neutropenia, 4.1%; anemia, 5.4%; diarrhea,16.2% (no grade 4 diarrhea reported); neutropenia & fatigue, 12.2%; thrombocytopenia, 9.5%. Neutropenia (p<0.0001), vomiting (p=0.0014), and fatigue (0.0194) were significantly decreased compared to historical data. RR in 37 pts with MPC was 35.1% (0 CR, 13 PR, 19 SD, 5 PD) and similar to historical data (36.9%; p 0.86). PFS in MPC pts was 6.11 mo with 95% CI (5.29, 8.31). Conclusions: mFOLFIRINOX with prophylactic pegfilgrastim in pts with MPC is associated with improved tolerability compared to full dose FOLFIRINOX, while RR and PFS in pts with MPC is similar to that reported by Conroy et all using full dose FOLFIRINOX. MPC pts are in follow-up for OS. Follow up for LAPC patients is ongoing. Clinical trial information: NCT01523457.
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Affiliation(s)
| | - Xiangyu Cong
- Yale Center for Analytical Sciences, New Haven, CT
| | - Xiaopan Yao
- Yale Center for Analytical Sciences, New Haven, CT
| | | | | | - Jia Li
- Yale School of Medicine, New Haven, CT
| | | | | | - Charles Cha
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Ronald R Salem
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Stacey Stein
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | - Howard S. Hochster
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | - Jill Lacy
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
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Ryu S, Maranzano E, Schild SE, Sahgal A, Yamada Y, Hoskin P, Rades D, Vichare A, Hahn C, Holt T. International survey of the treatment of metastatic spinal cord compression. J Radiosurg SBRT 2015; 3:237-245. [PMID: 29296406 PMCID: PMC5746338] [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] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 01/20/2014] [Indexed: 06/07/2023]
Abstract
BACKGROUND AND PURPOSE Treatment of metastatic spinal cord compression (MSCC) varies significantly. It is useful to understand how radiation oncologists worldwide deal with these challenging and urgent cases. Therefore, a survey of practice patterns of metastatic spinal cord compression was performed among the members of the major radiation oncology organizations in the world to help improve clinical practice. MATERIAL AND METHODS The survey questions addressed common clinical issues related to the diagnosis and treatment of spinal cord compression in the context of the available data. The survey of practice pattern in the management of MSCC was performed in 2010. There were a total of 269 survey respondents, and 90% of respondents were from hospital-based practice. Statistical analyses were performed at ASTRO headquarter using Microsoft Excel and SPSS. RESULTS The practice pattern of initial diagnostic and clinical evaluation of patients for MSCC was fairly uniform across the continents and countries. Treatment decision was largely based on patient's general condition, overall oncologic status, and concomitant systemic chemotherapy in this survey. EBRT dose and fractionation patterns were determined by considering the estimated survival time, neurological status such as ambulatory status, previous radiation, and radiation treatment volume. Despite of using similar factors in making treatment decision, there was a significant difference in selecting the radiation dose and fractionation scheme. Selection of re-treatment radiation dose also varied and generally below the published tolerance dose. CONCLUSIONS Selection of radiation dose and fractionation varied significantly among different continents and countries, while using similar factors to make treatment decision.
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Affiliation(s)
- Samuel Ryu
- Department of Radiation Oncology and Neurosurgery, Stony Brook University, New York, USA
| | - Ernesto Maranzano
- Department of Radiation Oncology Centre, “S. Maria” Hospital, Terni, Italy
| | - Steven E. Schild
- Department of Radiation Oncology Mayo Clinic, Scottsdale, Arizona, USA
| | - Arjun Sahgal
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre and the Princess Margaret Hospital, Toronto, Canada
| | - Yoshiya Yamada
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Peter Hoskin
- Consultant Clinical Oncologist, Mount Vernon Cancer Centre and Professor of Clinical Oncology, University College, London, U.K
| | - Dirk Rades
- Department of Radiation Oncology, University of Lubeck, Germany
| | - Anushree Vichare
- ASTRO, 8280 Willow Oaks Corporate Drive, Suite 500, Fairfax, VA 22031, USA
| | - Carol Hahn
- Department of Radiation Oncology, Duke University, Durham, North Carolina, USA
| | - Tanya Holt
- Department of Radiation Oncology Mater Centre, Princess Alexandra Hospital, Brisbane, Australia
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Hamadeh A, d'Allivy Kelly O, Hahn C, Meley H, Bernard R, Molpeceres AH, Naletov VV, Viret M, Anane A, Cros V, Demokritov SO, Prieto JL, Muñoz M, de Loubens G, Klein O. Full control of the spin-wave damping in a magnetic insulator using spin-orbit torque. Phys Rev Lett 2014; 113:197203. [PMID: 25415921 DOI: 10.1103/physrevlett.113.197203] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Indexed: 06/04/2023]
Abstract
It is demonstrated that the threshold current for damping compensation can be reached in a 5 μm diameter YIG(20 nm)|Pt(7 nm) disk. The demonstration rests upon the measurement of the ferromagnetic resonance linewidth as a function of I(dc) using a magnetic resonance force microscope (MRFM). It is shown that the magnetic losses of spin-wave modes existing in the magnetic insulator can be reduced or enhanced by at least a factor of 5 depending on the polarity and intensity of an in-plane dc current I(dc) flowing through the adjacent normal metal with strong spin-orbit interaction. Complete compensation of the damping of the fundamental mode by spin-orbit torque is reached for a current density of ∼3×10(11) A·m(-2), in agreement with theoretical predictions. At this critical threshold the MRFM detects a small change of static magnetization, a behavior consistent with the onset of an auto-oscillation regime.
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Affiliation(s)
- A Hamadeh
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France
| | - O d'Allivy Kelly
- Unité Mixte de Physique CNRS/Thales and Université Paris Sud 11, 1 avenue Fresnel, 91767 Palaiseau, France
| | - C Hahn
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France
| | - H Meley
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France
| | - R Bernard
- Unité Mixte de Physique CNRS/Thales and Université Paris Sud 11, 1 avenue Fresnel, 91767 Palaiseau, France
| | - A H Molpeceres
- Unité Mixte de Physique CNRS/Thales and Université Paris Sud 11, 1 avenue Fresnel, 91767 Palaiseau, France
| | - V V Naletov
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France and Unité Mixte de Physique CNRS/Thales and Université Paris Sud 11, 1 avenue Fresnel, 91767 Palaiseau, France and Institute of Physics, Kazan Federal University, Kazan 420008, Russian Federation
| | - M Viret
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France
| | - A Anane
- Unité Mixte de Physique CNRS/Thales and Université Paris Sud 11, 1 avenue Fresnel, 91767 Palaiseau, France
| | - V Cros
- Unité Mixte de Physique CNRS/Thales and Université Paris Sud 11, 1 avenue Fresnel, 91767 Palaiseau, France
| | - S O Demokritov
- Department of Physics, University of Muenster, 48149 Muenster, Germany and Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041, Russia
| | - J L Prieto
- Instituto de Sistemas Optoelectrónicos y Microtecnología (UPM), Madrid 28040, Spain
| | - M Muñoz
- Instituto de Microelectrónica de Madrid (CNM, CSIC), Madrid 28760, Spain
| | - G de Loubens
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France
| | - O Klein
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France and SPINTEC, UMR CEA/CNRS/UJF-Grenoble 1/Grenoble-INP, INAC, 38054 Grenoble, France
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Zuckermann A, Eisen H, See Tai S, Li H, Hahn C, Crespo-Leiro MG. Sirolimus conversion after heart transplant: risk factors for acute rejection and predictors of renal function response. Am J Transplant 2014; 14:2048-54. [PMID: 25307036 DOI: 10.1111/ajt.12833] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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: 10/31/2013] [Revised: 03/26/2014] [Accepted: 03/27/2014] [Indexed: 01/25/2023]
Abstract
In a randomized, comparative study of cardiac transplant patients with mild-to-moderate renal insufficiency, conversion from calcineurin inhibitors (CNIs) to sirolimus improved renal function at 1 year versus continuing CNIs, with an attendant risk of biopsy-confirmed acute rejection (BCAR). Post hoc analyses were conducted to identify predictors of BCAR and GFR improvement associated with conversion. Patients with proteinuria >500 mg/day were excluded. Univariate and multivariate regression analyses tested 13 parameters for BCAR and six for GFR improvement. In 57 sirolimus-treated patients, mean daily mycophenolate mofetil (MMF) dose was lower in those with versus without BCAR (1000 vs. 1420 mg; p = 0.014). Receiver operating characteristic analysis identified MMF dose ≤1000 mg/day as the optimal cutoff to predict BCAR. Multivariate analysis confirmed low MMF dose (odds ratio: 9.94; p = 0.007) and non-white race (odds ratio: 15.3; p = 0.06) were independently associated with BCAR. GFR improvement was evaluated in intent-to-treat patients (n = 116). Significant interaction was detected between treatment effect and preexisting diabetes status (univariate p = 0.077; multivariate p = 0.022), indicating greater beneficial effect of sirolimus in those without preexisting diabetes. These findings suggest that sirolimus is more effective in improving GFR in patients without preexisting diabetes, and adequate MMF doses are needed for sirolimus conversion.
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James ES, Yao X, Cong X, Li J, Hahn C, Kaley K, Kortmansky JS, Fischbach NA, Chang BW, Salem RR, Cha C, Stein S, Hochster HS, Lacy J. Interim analysis of a phase II study of dose-modified FOLFIRINOX (mFOLFIRINOX) in locally advanced (LAPC) and metastatic pancreatic cancer (MPC). J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.e15226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Xiaopan Yao
- Yale Center for Analytical Sciences, New Haven, CT
| | - Xiangyu Cong
- Yale Center for Analytical Sciences, New Haven, CT
| | - Jia Li
- VA Connecticut Healthcare System, Yale Cancer Center, West Haven, CT
| | | | | | | | | | | | - Ronald R Salem
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Charles Cha
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Stacey Stein
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | - Howard S. Hochster
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | - Jill Lacy
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
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Hahn C, Kaminski M, Lenzen S, Gurgul-Convey E. Die Rolle von Sphingosin-1-Phosphat-Lyase bei der zytokinvermittelten Toxizität in insulinproduzierenden INS1E Zellen. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1375047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nunes VA, Portioli-Sanches EP, Rosim MP, Araujo MS, Praxedes-Garcia P, Valle MMR, Roma LP, Hahn C, Gurgul-Convey E, Lenzen S, Azevedo-Martins AK. Progesterone induces apoptosis of insulin-secreting cells: insights into the molecular mechanism. J Endocrinol 2014; 221:273-84. [PMID: 24594616 DOI: 10.1530/joe-13-0202] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Progesterone has been associated with the development of gestational diabetes (GD) due to the enhancement of insulin resistance. As β-cell apoptosis participates in type 1 and type 2 diabetes pathophysiology, we proposed the hypothesis that progesterone might contribute to the development of GD through a mechanism that also involves β-cell death. To address this question, RINm5F insulin-producing cells were incubated with progesterone (25-100 μM), in the presence or absence of α-tocopherol (40 μM). After 24 or 48 h, membrane integrity and DNA fragmentation were analyzed by flow cytometry. Caspase activity was used to identify the mode of cell death. The involvement of endoplasmic reticulum stress in the action of progesterone was investigated by western blotting. Oxidative stress was measured by 2',7'-dichlorofluorescein diacetate (DCFDA) oxidation. Isolated rat islets were used in similar experiments in order to confirm the effect of progesterone in primary β-cells. Incubation of RINm5F cells with progesterone increased the number of cells with loss of membrane integrity and DNA fragmentation. Progesterone induced generation of reactive species. Pre-incubation with α-tocopherol attenuated progesterone-induced apoptosis. Western blot analyses revealed increased expression of CREB2 and CHOP in progesterone-treated cells. Progesterone caused apoptotic death of rat islet cells and enhanced generation of reactive species. Our results show that progesterone can be toxic to pancreatic β-cells through an oxidative-stress-dependent mechanism that induces apoptosis. This effect may contribute to the development of GD during pregnancy, particularly under conditions that require administration of pharmacological doses of this hormone.
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Affiliation(s)
- V A Nunes
- School of Arts, Sciences and Humanities Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil Department of Biochemistry of Federal University of Sao Paulo, Sao Paulo, Brazil Institute of Clinical Biochemistry, Hannover Medical School, Hannover, Germany
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Blazer VS, Hoffman J, Walsh HL, Braham RP, Hahn C, Collins P, Jorgenson Z, Ledder T. Health of white sucker within the St. Louis River area of concern associated with habitat usage as assessed using stable isotopes. Ecotoxicology 2014; 23:236-51. [PMID: 24370817 PMCID: PMC3920021 DOI: 10.1007/s10646-013-1167-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/14/2013] [Indexed: 05/21/2023]
Abstract
In Spring 2011, 200 adult white sucker were collected in four areas of the St. Louis River area of concern (AOC), located in Minnesota and Wisconsin, USA. The areas included the upper AOC as a reference area, the upper estuary, St. Louis Bay and Superior Bay. Grossly visible abnormalities were documented and preserved for microscopic analyses, as were five to eight representative pieces of liver tissue. A piece of dorsal muscle was preserved for stable isotope analyses and otoliths removed for age determination. The incidence of raised skin lesions (mucoid plaques) was high (31 %), however, microscopically only 4.5 % of the white suckers had neoplasia (papillomas). The remaining lesions were epidermal hyperplasia. Superior Bay had the lowest percentage of skin/lip lesions (10 %), while St. Louis Bay had the highest (44 %). St. Louis Bay also had the highest incidence of skin neoplasms (12 %). No hepatocellular neoplasms were documented, however bile duct tumors were observed in 4.5 % of the suckers. Foci of cellular alteration were observed in fish from all sites except the upper AOC. Stable isotope data indicated that most of the suckers relied on the St. Louis River AOC for the majority (>75 %) of their diet, indicating they were resident within the AOC and not in Lake Superior. The amount of diet obtained from the upper estuary was a significant predictor of skin lesion incidence. Hence, habitat use within the AOC appears to be an important risk factor for skin and possibly, liver lesions.
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Affiliation(s)
- V. S. Blazer
- Leetown Science Center, Fish Health Branch, U.S. Geological Survey, 11649 Leetown Road, Kearneysville, WV 25430 USA
| | - J. Hoffman
- Mid-Continent Ecology Division, U.S. Environmental Protection Agency, 6201 Congdon Blvd, Duluth, MN USA
| | - H. L. Walsh
- Leetown Science Center, Fish Health Branch, U.S. Geological Survey, 11649 Leetown Road, Kearneysville, WV 25430 USA
| | - R. P. Braham
- College of Agriculture and Forestry, West Virginia University, P.O. Box 6125, Morgantown, WV 26506 USA
| | - C. Hahn
- College of Agriculture and Forestry, West Virginia University, P.O. Box 6125, Morgantown, WV 26506 USA
| | - P. Collins
- Minnesota Department of Natural Resources, 1201 E. Hwy 2, Grand Rapids, MN USA
| | - Z. Jorgenson
- Twin Cities Ecological Services Field Office, U.S. Fish and Wildlife Service, 4101 American Boulevard East, Bloomington, MN 55425 USA
| | - T. Ledder
- Lake Superior National Estuarine Research Reserve, University of Wisconsin, Superior, WI USA
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James ES, Yao X, Cong X, Stein S, Kaley K, Hahn C, Cha C, Salem RR, Hochster HS, Lacy J. Interim analysis of a phase II study of dose-modified FOLFIRINOX (mFOLFIRINOX) in locally advanced (LAPC) and metastatic pancreatic cancer (MPC). J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.3_suppl.256] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
256 Background: Although FOLFIRINOX is superior to gemcitabine in MPC, the regimen is associated with significant toxicities (Conroy et al. N Engl J Med 2011;364:1817). In our prior retrospective analysis, efficacy was not compromised by dose attenuations of FOLFIRINOX (Gunturu et al. Med Oncol 2013;30:361). Based on this analysis, we are conducting a prospective phase II open label study to evaluate the efficacy & tolerability of mFOLFIRINOX in pts with advanced pancreatic cancer (PC). Methods: Previously untreated pts with MPC or LAPC received mFOLFIRINOX with 25% dose reductions of irinotecan & bolus 5-FU given every two wks until progression, unacceptable toxicity, or surgical resection. All pts received prophylactic pegfilgrastim. FDG-PET scans were obtained at baseline & after 2 cycles. CAT scans were obtained after every 4 cycles. Toxicities & response rate (RR) were compared to historical data reported by Conroy. Results: 53 pts with ECOG PS ≤1 have been enrolled to date between 11/11 and 08/13, Pt characteristics: LAPC 22; MPC 31; median age 62 yrs (range 46-86); male 30. Median # of cycles was 8 (range 1-21). Grade 3/4 toxicities were: anemia, febrile neutropenia (FN) & peripheral sensory neuropathy (PSN) – 3.8% each; ALT increased & thromboembolism – 5.7% each; diarrhea 7.5%; fatigue 11.3%; neutropenia 17%; thrombopenia 11.3% & vomiting 1.9%. Anemia ( p< 0.04), FN (p<0.04), PSN (p<0.04) and vomiting (p<0.02) were significantly decreased compared to historical data (Conroy). Response by RECIST (CR+PR) in 26 evaluable pts with MPC was 29% (0 CR, 9 PR, 14 SD, 3 PD) & similar to historical data (31.6%; p 0.85). 6/13 evaluable pts with LAPC underwent resection (46%).13/36 pts evaluable for PET response had a >50% decrease in SUV(max)(36%). Evaluation for OS & PFS is ongoing. Conclusions: Findings from our interim analysis suggests that mFOLFIRINOX, given along with prophylactic pegfilgrastim is associated with a similar RR and improved tolerability compared to full dose FOLFIRINOX in advanced PC. In pts with LAPC, neoadjuvant FOLFIRINOX appears to have substantial activity with 46% of evaluable pts undergoing resection. Accrual will continue to reach a goal of 70 pts. Clinical trial information: NCT01523457.
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Affiliation(s)
| | - Xiaopan Yao
- Yale Center for Analytical Sciences, New Haven, CT
| | - Xiangyu Cong
- Yale Center for Analytical Sciences, New Haven, CT
| | - Stacey Stein
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | | | - Carol Hahn
- Yale University School of Medicine, New Haven, CT
| | - Charles Cha
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Ronald R Salem
- Department of Surgical Oncology, Yale University School of Medicine, New Haven, CT
| | - Howard S. Hochster
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
| | - Jill Lacy
- Department of Medical Oncology, Yale University School of Medicine, New Haven, CT
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Hahn C, de Loubens G, Viret M, Klein O, Naletov VV, Ben Youssef J. Detection of microwave spin pumping using the inverse spin Hall effect. Phys Rev Lett 2013; 111:217204. [PMID: 24313523 DOI: 10.1103/physrevlett.111.217204] [Citation(s) in RCA: 6] [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: 08/15/2013] [Indexed: 06/02/2023]
Abstract
We report on the electrical detection of the dynamical part of the spin-pumping current emitted during ferromagnetic resonance using inverse spin Hall effect methods. The experiment is performed on a YIG|Pt bilayer. The choice of yttrium iron garnet (YIG), a magnetic insulator, ensures that no charge current flows between the two layers and only the pure spin current produced by the magnetization dynamics is transferred into the adjacent strong spin-orbit Pt layer via spin pumping. To avoid measuring the parasitic eddy currents induced at the frequency of the microwave source, a resonance at half the frequency is induced using parametric excitation in the parallel geometry. Triggering this nonlinear effect allows us to directly detect on a spectrum analyzer the microwave component of the inverse spin Hall effect voltage. Signals as large as 30 μV are measured for precession angles of a couple of degrees. This direct detection provides a novel efficient means to study magnetization dynamics on a very wide frequency range with great sensitivity.
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Affiliation(s)
- C Hahn
- Service de Physique de l'État Condensé (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette, France
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30
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Valicenti RK, Thompson I, Albertsen P, Davis BJ, Goldenberg SL, Wolf JS, Sartor O, Klein E, Hahn C, Michalski J, Roach M, Faraday MM. Adjuvant and salvage radiation therapy after prostatectomy: American Society for Radiation Oncology/American Urological Association guidelines. Int J Radiat Oncol Biol Phys 2013; 86:822-8. [PMID: 23845839 DOI: 10.1016/j.ijrobp.2013.05.029] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 05/15/2013] [Accepted: 05/15/2013] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this guideline was to provide a clinical framework for the use of radiation therapy after radical prostatectomy as adjuvant or salvage therapy. METHODS AND MATERIALS A systematic literature review using PubMed, Embase, and Cochrane database was conducted to identify peer-reviewed publications relevant to the use of radiation therapy after prostatectomy. The review yielded 294 articles; these publications were used to create the evidence-based guideline statements. Additional guidance is provided as Clinical Principles when insufficient evidence existed. RESULTS Guideline statements are provided for patient counseling, use of radiation therapy in the adjuvant and salvage contexts, defining biochemical recurrence, and conducting a restaging evaluation. CONCLUSIONS Physicians should offer adjuvant radiation therapy to patients with adverse pathologic findings at prostatectomy (ie, seminal vesicle invastion, positive surgical margins, extraprostatic extension) and salvage radiation therapy to patients with prostate-specific antigen (PSA) or local recurrence after prostatectomy in whom there is no evidence of distant metastatic disease. The offer of radiation therapy should be made in the context of a thoughtful discussion of possible short- and long-term side effects of radiation therapy as well as the potential benefits of preventing recurrence. The decision to administer radiation therapy should be made by the patient and the multidisciplinary treatment team with full consideration of the patient's history, values, preferences, quality of life, and functional status. The American Society for Radiation Oncology and American Urological Association websites show this guideline in its entirety, including the full literature review.
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Affiliation(s)
- Richard K Valicenti
- Department of Radiation Oncology, University of California, Davis School of Medicine, Davis, California, USA.
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31
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Iwanowicz L, Densmore C, Hahn C, McAllister P, Odenkirk J. Identification of largemouth bass virus in the introduced Northern Snakehead inhabiting the Chesapeake Bay watershed. J Aquat Anim Health 2013; 25:191-196. [PMID: 23895368 DOI: 10.1080/08997659.2013.799614] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The Northern Snakehead Channa argus is an introduced species that now inhabits the Chesapeake Bay. During a preliminary survey for introduced pathogens possibly harbored by these fish in Virginia waters, a filterable agent was isolated from five specimens that produced cytopathic effects in BF-2 cells. Based on PCR amplification and partial sequencing of the major capsid protein (MCP), DNA polymerase (DNApol), and DNA methyltransferase (Mtase) genes, the isolates were identified as Largemouth Bass virus (LMBV). Nucleotide sequences of the MCP (492 bp) and DNApol (419 pb) genes were 100% identical to those of LMBV. The nucleotide sequence of the Mtase (206 bp) gene was 99.5% identical to that of LMBV, and the single nucleotide substitution did not lead to a predicted amino acid coding change. This is the first report of LMBV from the Northern Snakehead, and provides evidence that noncentrarchid fishes may be susceptible to this virus.
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Affiliation(s)
- L Iwanowicz
- a U.S. Geological Survey , Leetown Science Center , Fish Health Branch, 11649 Leetown Road , Kearneysville , West Virginia , 25430 , USA
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32
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Thompson IM, Valicenti RK, Albertsen P, Davis BJ, Goldenberg SL, Hahn C, Klein E, Michalski J, Roach M, Sartor O, Wolf JS, Faraday MM. Adjuvant and salvage radiotherapy after prostatectomy: AUA/ASTRO Guideline. J Urol 2013; 190:441-9. [PMID: 23707439 DOI: 10.1016/j.juro.2013.05.032] [Citation(s) in RCA: 285] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2013] [Indexed: 11/24/2022]
Abstract
PURPOSE The purpose of this guideline is to provide a clinical framework for the use of radiotherapy after radical prostatectomy as adjuvant or salvage therapy. MATERIALS AND METHODS A systematic literature review using the PubMed®, Embase, and Cochrane databases was conducted to identify peer-reviewed publications relevant to the use of radiotherapy after prostatectomy. The review yielded 294 articles; these publications were used to create the evidence-based guideline statements. Additional guidance is provided as Clinical Principles when insufficient evidence existed. RESULTS Guideline statements are provided for patient counseling, the use of radiotherapy in the adjuvant and salvage contexts, defining biochemical recurrence, and conducting a re-staging evaluation. CONCLUSIONS Physicians should offer adjuvant radiotherapy to patients with adverse pathologic findings at prostatectomy (i.e., seminal vesicle invasion, positive surgical margins, extraprostatic extension) and should offer salvage radiotherapy to patients with prostatic specific antigen or local recurrence after prostatectomy in whom there is no evidence of distant metastatic disease. The offer of radiotherapy should be made in the context of a thoughtful discussion of possible short- and long-term side effects of radiotherapy as well as the potential benefits of preventing recurrence. The decision to administer radiotherapy should be made by the patient and the multi-disciplinary treatment team with full consideration of the patient's history, values, preferences, quality of life, and functional status. Please visit the ASTRO and AUA websites (http://www.redjournal.org/webfiles/images/journals/rob/RAP%20Guideline.pdf and http://www.auanet.org/education/guidelines/radiation-after-prostatectomy.cfm) to view this guideline in its entirety, including the full literature review.
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Affiliation(s)
- Ian M Thompson
- American Urological Association Education and Research, Inc., Linthicum, Maryland, USA
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33
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Hahn C, Lenzen S, Gurgul-Convey E. Die zytokinvermittelte Regulation des S1P Metabolismus und der Einfluss auf die Insulinsekretion in insulinproduzierenden INS1E Zellen. DIABETOL STOFFWECHS 2013. [DOI: 10.1055/s-0033-1341758] [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: 10/26/2022]
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Hahn C, Böhm M, Allekotte S, Mösges R. Tolerability and effects on quality of life of liposomal nasal spray treatment compared to nasal ointment containing dexpanthenol or isotonic NaCl spray in patients with rhinitis sicca. Eur Arch Otorhinolaryngol 2013; 270:2465-72. [PMID: 23371540 PMCID: PMC3731516 DOI: 10.1007/s00405-013-2362-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 01/15/2013] [Indexed: 02/02/2023]
Abstract
This study aimed to investigate symptom reduction via the liposomal nasal spray LipoNasal (LN) in patients with rhinitis sicca. Tolerability and the impact on quality of life were also examined. The same parameters were established in parallel for treatment approaches with Bepanthen (BP) nasal ointment containing dexpanthenol and the Rhinomer (RH) nasal spray containing NaCl. This prospective, controlled, open-label observation study was a multicenter trial. 92 patients with rhinitis sicca were allocated to three arms according to their symptoms: LN: n = 33; BP: n = 32 and RH: n = 27. The study comprised three visits at an interval of 14 days. Efficacy was examined by the Rhinitis Sicca Symptom Score (RSSS) documented daily and at the visits based on an endoscopic evaluation. The nasal spray sensory scale was used to investigate the tolerability. Quality of life (QoL) was measured by means of the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) and the "Short Form 12" of the "Impact on Health-Related Quality of Life (HRQL)" questionnaire on general quality of life. Nasal symptoms improved significantly (p = 0.001) under all three treatment approaches, reflected by the reduction in the RSSS and the Endoscopy Sum Score. A comparison of the three groups showed that no therapy was significantly superior to any of the others (p = 0.410). The tolerability of all treatments was good. Concerning the nasal moisturization, LipoNasal was evaluated better than Bepanthen and Rhinomer. Quality of life improved in all groups, but not significantly. The results show good efficacy and tolerability of the liposomal nasal spray compared to generally recognized treatments of rhinitis sicca with dexpanthenol nasal ointment and NaCl nasal spray. LipoNasal therefore constitutes a good treatment for patients suffering from dry nose.
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Affiliation(s)
- C. Hahn
- Institute of Medical Statistics, Informatics and Epidemiology (IMSIE), University of Cologne, 50924 Cologne, Germany
| | - M. Böhm
- Institute of Medical Statistics, Informatics and Epidemiology (IMSIE), University of Cologne, 50924 Cologne, Germany
| | - S. Allekotte
- Institute of Medical Statistics, Informatics and Epidemiology (IMSIE), University of Cologne, 50924 Cologne, Germany
| | - R. Mösges
- Institute of Medical Statistics, Informatics and Epidemiology (IMSIE), University of Cologne, 50924 Cologne, Germany
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35
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Pigeau B, Hahn C, de Loubens G, Naletov VV, Klein O, Mitsuzuka K, Lacour D, Hehn M, Andrieu S, Montaigne F. Measurement of the dynamical dipolar coupling in a pair of magnetic nanodisks using a ferromagnetic resonance force microscope. Phys Rev Lett 2012; 109:247602. [PMID: 23368378 DOI: 10.1103/physrevlett.109.247602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Indexed: 06/01/2023]
Abstract
We perform a spectroscopic study of the collective spin-wave dynamics occurring in a pair of magnetic nanodisks coupled by the magnetodipolar interaction. We take advantage of the stray field gradient produced by the magnetic tip of a ferromagnetic resonance force microscope to continuously tune and detune the relative resonance frequencies between two adjacent nano-objects. This reveals the anticrossing and hybridization of the spin-wave modes in the pair. At the exact tuning, the measured frequency splitting between the binding and antibinding modes corresponds to the strength of the dynamical dipolar coupling Ω. This accurate ferromagnetic resonance force microscope determination of Ω is measured versus the separation between the nanodisks. It agrees quantitatively with calculations of the expected dynamical magnetodipolar interaction in our sample.
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Affiliation(s)
- B Pigeau
- Service de Physique de l'État Condensé, CNRS URA 2464, CEA Saclay, 91191 Gif-sur-Yvette, France.
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Lim HK, Hong SC, Jung WS, Ahn KJ, Won WY, Hahn C, Kim IS, Lee CU. Automated segmentation of hippocampal subfields in drug-naïve patients with Alzheimer disease. AJNR Am J Neuroradiol 2012; 34:747-51. [PMID: 23042923 DOI: 10.3174/ajnr.a3293] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Although a few automated hippocampal subfield segmentation methods have been developed, there is no study on the effects of the diagnosis of Alzheimer disease on the hippocampal subfield volume with in vivo MR imaging. The aim of this study was to investigate hippocampal subfield volume differences between drug-naïve subjects with AD and healthy elderly controls by using an automated hippocampal subfield segmentation technique. MATERIALS AND METHODS Thirty-one drug-naïve subjects with AD and 33 group-matched healthy control subjects underwent 3T MR imaging, and hippocampal subfield volume was measured and compared between the groups. RESULTS Subjects with AD had significantly smaller volumes of the presubiculum, subiculum, CA2-3, and CA4 DG compared with healthy subjects (uncorrected, P<.001). In addition, we found significant positive correlations between the presubiculum and the subicular volumes and the MMSE-K and the CERAD-K verbal delayed recall scores in the AD group. CONCLUSIONS We are unaware of previous imaging studies of automated hippocampal subfield segmentation in AD. These structural changes in the hippocampal presubiculum, subiculum, and CA2-3 might be at the core of underlying neurobiologic mechanisms of hippocampal dysfunction and their relevance to verbal delayed recall impairments in AD.
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Affiliation(s)
- H K Lim
- Department of Psychiatry, Saint Vincent Hospital, and College of Medicine, Catholic University of Korea, Suwon, Korea
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Tsao MN, Rades D, Wirth A, Lo SS, Danielson BL, Vichare A, Hahn C, Chang EL. International Practice Survey on the Management of Brain Metastases: Third International Consensus Workshop on Palliative Radiotherapy and Symptom Control. Clin Oncol (R Coll Radiol) 2012; 24:e81-92. [PMID: 22794327 DOI: 10.1016/j.clon.2012.03.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 01/27/2012] [Accepted: 03/22/2012] [Indexed: 11/30/2022]
Affiliation(s)
- M N Tsao
- Department of Radiation Oncology, University of Toronto, Odette Cancer Centre, Toronto, Ontario, Canada.
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Rodrigues G, Macbeth F, Burmeister B, Kelly KL, Bezjak A, Langer C, Hahn C, Vichare A, Movsas B. International Practice Survey on Palliative Lung Radiotherapy: Third International Consensus Workshop on Palliative Radiotherapy and Symptom Control. Clin Lung Cancer 2012; 13:225-35. [DOI: 10.1016/j.cllc.2011.11.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 10/11/2011] [Accepted: 11/09/2011] [Indexed: 11/27/2022]
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Brandsema J, Widjaja E, Sharma R, Hahn C. Reliability of Imaging-Friendly Electrodes for Continuous EEG Monitoring in Children (P03.108). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p03.108] [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: 11/15/2022] Open
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Rossini J, Mercorella B, Townshend S, Vakulin C, Rawlings L, Li X, Hahn C, Scott H. Familial platelet disorders with a predisposition to acute myelogenous leukaemia: a RUNX1 update. Hered Cancer Clin Pract 2012. [PMCID: PMC3326735 DOI: 10.1186/1897-4287-10-s2-a64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Zuckermann A, Eisen H, See Tai S, Li H, Hahn C, Crespo-Leiro M. 255 Predictors of Acute Rejection or Renal Function Improvement in Cardiac Transplant Patients with Renal Insufficiency. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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42
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van Galen G, Marcillaud Pitel C, Saegerman C, Patarin F, Amory H, Baily JD, Cassart D, Gerber V, Hahn C, Harris P, Keen JA, Kirschvink N, Lefere L, McGorum B, Muller JMV, Picavet MTJE, Piercy RJ, Roscher K, Serteyn D, Unger L, van der Kolk JH, van Loon G, Verwilghen D, Westermann CM, Votion DM. European outbreaks of atypical myopathy in grazing equids (2006-2009): spatiotemporal distribution, history and clinical features. Equine Vet J 2012; 44:614-20. [PMID: 22448904 DOI: 10.1111/j.2042-3306.2012.00556.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
REASONS FOR PERFORMING STUDY Improved understanding of the epidemiology of atypical myopathy (AM) will help to define the environmental factors that permit or support the causal agent(s) to exert toxicity. OBJECTIVES This European survey of AM aimed to describe spatiotemporal distribution, survival, clinical signs, circumstances in which AM develops and its different expressions between countries and over time. METHODS The spatiotemporal distribution, history and clinical features of AM cases reported to the Atypical Myopathy Alert Group from 2006 to 2009 were described. Comparisons of data from the most severely affected countries and from the large outbreaks were made with Fisher's exact and Welch's tests with Bonferroni correction. RESULTS Of 600 suspected cases, 354 met the diagnostic criteria for confirmed or highly probable AM. The largest outbreaks occurred during the autumns of 2006 and 2009 in Belgium, France and Germany. For the first time, donkeys, zebras and old horses were affected, and clinical signs such as gastrointestinal impaction, diarrhoea, penile prolapse, buccal ulceration and renal dysfunction were observed. Affected horses spent >6 h/day on pastures that almost always contained or were surrounded by trees. The latency period was estimated at up to 4 days. Overall survival rate was 26%. Although differences between countries in affected breeds, body condition, horse management and pasture characteristics were recognised, the common presenting clinical signs and mortality were similar between countries. CONCLUSIONS AND POTENTIAL RELEVANCE This study describes new data on case details, history and clinical course of AM that is of preventive, diagnostic and therapeutic value. However, the true impact of the findings of this study on the development of or severity of AM should be tested with case-control studies.
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Affiliation(s)
- G van Galen
- Department of Epidemiology, Faculty of Veterinary Medicine, University of Liege, Belgium.
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van Galen G, Saegerman C, Marcillaud Pitel C, Patarin F, Amory H, Baily JD, Cassart D, Gerber V, Hahn C, Harris P, Keen JA, Kirschvink N, Lefere L, McGorum B, Muller JMV, Picavet MTJE, Piercy RJ, Roscher K, Serteyn D, Unger L, van der Kolk JH, van Loon G, Verwilghen D, Westermann CM, Votion DM. European outbreaks of atypical myopathy in grazing horses (2006-2009): determination of indicators for risk and prognostic factors. Equine Vet J 2012; 44:621-5. [PMID: 22413891 DOI: 10.1111/j.2042-3306.2012.00555.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
REASONS FOR PERFORMING STUDY Appropriate management of atypical myopathy (AM) requires the establishment of an accurate diagnosis and prognosis. Furthermore, preventive measures to avoid AM need to be refined. OBJECTIVES The aims of the study were as follows: 1) to improve the diagnosis of AM; 2) to identify prognostic predictors; and 3) to refine recommended preventive measures based on indicators of risk factors. METHODS An exploratory analysis of cases in Europe between 2006 and 2009 reported to the Atypical Myopathy Alert Group was conducted. Based on clinical data, reported cases were allocated into 2 groups: confirmed or highly probable AM (AM group; further divided into survivors and nonsurvivors); and cases with a low probability of having AM or with another final diagnosis (non-AM group). Using Welch's test and odds ratios corrected for multiple comparisons, the AM vs. non-AM groups were compared to identify indicators for diagnosis and risk factors, and survivors vs. nonsurvivors in the AM group were compared to identify prognostic factors. Sensitivity, specificity and positive and negative predictive values were calculated for specific clinical signs related to final diagnosis and outcome. RESULTS From 600 reported cases, 354 AM cases (survival rate of 26%) and 69 non-AM cases were identified, while there were insufficient data to categorise the remainder. Variables valuable for diagnosing AM compared with similar diseases were as follows: presence of dead leaves and wood and/or trees on pastures; sloping pastures; full-time pasture access; no food supplementation; normal body condition; pigmenturia; normothermia; and congested mucous membranes. Nonsurvival was associated with recumbency, sweating, anorexia, dyspnoea, tachypnoea and/or tachycardia. Survival was associated with remaining standing most of the time, normothermia, normal mucous membranes, defaecation and vitamin and antioxidant therapy. CONCLUSIONS AND POTENTIAL RELEVANCE This study refines the list of risk factors for AM. Clinical signs valuable for diagnosis and prognosis have been identified, enabling clinicians to improve management of AM cases.
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Affiliation(s)
- G van Galen
- Department of Epidemiology, Faculty of Veterinary Medicine, University of Liege, Belgium.
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Gunturu KS, Thumar JR, Hochster HS, Stein S, Yao X, Cong X, Hahn C, Kaley K, Lacy J. Single-institution experience with FOLFIRINOX in advanced pancreatic cancer (PC). J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.4_suppl.330] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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
330 Background: FOLFIRINOX provides clinically significant benefit in advanced PC compared to gemcitabine (Conroy et al. New Engl J Med 2011;364:1817). Despite superior efficacy, toxicities have tempered enthusiasm for FOLFIRINOX and limited its use in full doses. To assess the impact of dose attenuations on toxicity and efficacy, we reviewed our experience with FOLFIRINOX in pts with advanced PC. Methods: We performed a retrospective review of dose, toxicity, efficacy of FOLFIRINOX in all pts with locally advanced unresectable PC (LAPC) and metastatic PC (MPC) treated with FOLFIRINOX at Yale Cancer Center between 06/10 and 06/11. Dose attenuations were at the treating physician’s discretion. All pts received prophylactic pegfilgrastim. Pts were treated until progression, unacceptable toxicity, or surgical resection. Toxicities and efficacy were compared to historical data reported by Conroy. Results: 31 pts with ECOG PS 0 or 1 were treated. Pt characteristics: LAPC 15; MPC 16; median (med) age 60 yrs (range 48-78); male 11; prior chemotherapy 5 (adjuvant 3). Med number of cycles received was 6 (range 1-18). Only 5 pts received full doses of all drugs with cycle 1. Dose reductions with cycle 1 were: IRI 26 pts, OX 10 pts, bFU 10 pts, infusional FU 1 pt. b5FU was omitted in 6 pts. Med relative dose intensities were: OX 88%, IRI 64%, b-FU 57%, infusional FU 100% (compared to OX 78%, IRI 81%, and FU 82% [Conroy]). The % of pts with grade 3 or 4 toxicities was: fatigue or mucositis, 9.6%; dehydration or neutropenia 6.4%; vomiting, thromboembolism, febrile neutropenia, thrombopenia or anemia, 3.2%. Neutropenia (p<0.0001), diarrhea (p<0.03), fatigue (p<0.02) were significantly decreased compared to historical data (Conroy). Response (CR+PR) in 30 evaluable pts was 33% (1 CR, 9 PR, 14 SD, 6 PD) and similar to historical data (31.6%; p 0.21). 2 pts with LAPC underwent resection. Evaluation for OS and PFS is ongoing. Conclusions: Our findings suggest that dose attentuation of FOLFIRINOX, esp IRI and bFU, with prophylactic pegfilgrastim is associated with improved tolerability and equivalent response rate compared to full dose FOLFIRINOX in advanced PC. The impact of dose attenuations on toxicity and efficacy warrants further evaluation in both LAPC and MPC.
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Affiliation(s)
- Krishna Soujanya Gunturu
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
| | | | - Howard S. Hochster
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
| | - Stacey Stein
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
| | - Xiaopan Yao
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
| | - Xiangyu Cong
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
| | - Carol Hahn
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
| | - Kristin Kaley
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
| | - Jill Lacy
- Yale University School of Medicine, New Haven, CT; Yale Center for Analytical Sciences, New Haven, CT
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Rodrigues G, Macbeth F, Burmeister B, Kelly KL, Bezjak A, Langer C, Hahn C, Movsas B. Consensus Statement on Palliative Lung Radiotherapy: Third International Consensus Workshop on Palliative Radiotherapy and Symptom Control. Clin Lung Cancer 2012; 13:1-5. [DOI: 10.1016/j.cllc.2011.04.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 04/14/2011] [Accepted: 04/26/2011] [Indexed: 12/12/2022]
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Abstract
Equine grass sickness (EGS) occurs mainly in Great Britain, but has once been reported in Hungary. The stud which was affected by EGS in 2001 had no new cases until 2009/10, when 11 of 60 and five of 12 one- to three-year-old colts died or were euthanased due to EGS. Following a few hours in the high-risk field during the winter of 2010/11 further four cases of acute EGS were noted among these horses. The affected horses showed somewhat different clinical signs compared with the cases reported in Great Britain. Histopathological findings in these horses were consistent with EGS. In most examined cases carbofuran, a carbamate was found in the liver by toxicological examination, and it is postulated that carbofuran may influence the immune system and therefore predispose the horses to develop EGS. Carbamates are thought to cause a delayed neurotoxicity in human beings. Further studies are needed to clarify the potential role of carbamates in EGS.
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Affiliation(s)
- B Schwarz
- Equine Clinic, Section Internal Medicine, University of Veterinary Medicine Vienna, Veterinärplatz, 1 1210, Wien, Austria.
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47
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Hahn E, Hahn C, Dettling M, Güntürkün O, Ta T, Neuhaus A. Smoking and double dissociation of prefrontal cognition in schizophrenia. Pharmacopsychiatry 2011. [DOI: 10.1055/s-0031-1292490] [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: 10/17/2022]
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48
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Lettner M, Mücke M, Riedl S, Vo C, Hahn C, Baur S, Bochmann J, Ritter S, Dürr S, Rempe G. Remote entanglement between a single atom and a Bose-Einstein condensate. Phys Rev Lett 2011; 106:210503. [PMID: 21699281 DOI: 10.1103/physrevlett.106.210503] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Indexed: 05/31/2023]
Abstract
Entanglement between stationary systems at remote locations is a key resource for quantum networks. We report on the experimental generation of remote entanglement between a single atom inside an optical cavity and a Bose-Einstein condensate (BEC). To produce this, a single photon is created in the atom-cavity system, thereby generating atom-photon entanglement. The photon is transported to the BEC and converted into a collective excitation in the BEC, thus establishing matter-matter entanglement. After a variable delay, this entanglement is converted into photon-photon entanglement. The matter-matter entanglement lifetime of 100 μs exceeds the photon duration by 2 orders of magnitude. The total fidelity of all concatenated operations is 95%. This hybrid system opens up promising perspectives in the field of quantum information.
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Affiliation(s)
- M Lettner
- Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany
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49
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Hoskin P, Chow E, Dawson L, Hahn C, Holt T, Lutz S, Rodrigues G, Tsao M. 520 oral THIRD INTERNATIONAL CONSENSUS ON PALLIATIVE RADIOTHERAPY: A JOINT ASTRO, ESTRO, CARO & TROG INITIATIVE. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)70642-9] [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]
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50
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Chow E, Hoskin P, Mitera G, Zeng L, Lutz S, Roos D, Hahn C, van der Linden Y, Hartsell W, Kumar E. Update of the international consensus on palliative radiotherapy endpoints for future clinical trials in bone metastases. Int J Radiat Oncol Biol Phys 2011; 82:1730-7. [PMID: 21489705 DOI: 10.1016/j.ijrobp.2011.02.008] [Citation(s) in RCA: 237] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Revised: 01/24/2011] [Accepted: 02/03/2011] [Indexed: 12/16/2022]
Abstract
PURPOSE To update the international consensus on palliative radiotherapy endpoints for future clinical trials in bone metastases by surveying international experts regarding previous uncertainties within the 2002 consensus, changes that may be necessary based on practice pattern changes and research findings since that time. METHODS AND MATERIALS A two-phase survey was used to determine revisions and new additions to the 2002 consensus. A total of 49 experts from the American Society for Radiation Oncology, the European Society for Therapeutic Radiology and Oncology, the Faculty of Radiation Oncology of the Royal Australian and New Zealand College of Radiologists, and the Canadian Association of Radiation Oncology who are directly involved in the care of patients with bone metastases participated in this survey. RESULTS Consensus was established in areas involving response definitions, eligibility criteria for future trials, reirradiation, changes in systemic therapy, radiation techniques, parameters at follow-up, and timing of assessments. CONCLUSION An outline for trials in bone metastases was updated based on survey and consensus. Investigators leading trials in bone metastases are encouraged to adopt the revised guideline to promote consistent reporting. Areas for future research were identified. It is intended for the consensus to be re-examined in the future on a regular basis.
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Affiliation(s)
- Edward Chow
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
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