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Decombe O, Germain T, Lenfant L, Denormandie A, Felber M, Robain G, Denys P, Chartier-Kastler E. Isolated continent cystostomy on neurologic native bladder: Functional results. Fr J Urol 2024; 34:102642. [PMID: 38701949 DOI: 10.1016/j.fjurol.2024.102642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/14/2024] [Accepted: 04/28/2024] [Indexed: 05/06/2024]
Abstract
INTRODUCTION Continent cutaneous urinary diversion (CCUD) is proposed to patients suffering from chronic neurologic retention and undergoing intermittent self-catheterization (ISC). In case of neurogenic detrusor overactivity (NDO), augmentation enterocystoplasty is often required. The aim was to identify the prevalence of urinary stomal and/or urethral leakage in patients who had not undergone enlargement. METHODS Monocentric, retrospective study of patients who underwent CCUD surgery in a neuro-urological context. Mitrofanoff's, Monti's or Casale's channels were performed. Patients selected had an underactive, stable, or stabilized bladder under adjuvant therapy with proper cystomanometric capacity. Prior or concomitant enterocystoplasty were excluded. Failure was defined as the occurrence of clinical leakage whatever it is through urinary stomal, or urethral. Urodynamic parameters were also reported. RESULTS Thirty-one patients underwent surgery. Nine women had a concomitant bladder neck sling and 1 urethral closure. The mean follow-up was 7 years. 8/31 (26%) had stomal leakage and 9 urethral leakage (29%). Five spinal cord injured patients (n=14) had stomal leakage (36%) and 6 urethral leakage (43%). Of the 25 postoperative urodynamic parameters, cystomanometric bladder capacity was 419mL (vs. 514mL) and 2 additional patients had de novo NDO (9 vs. 7). DISCUSSION The morbidity of augmentation enterocystoplasty is weighed against the presence of a well-controlled bladder preoperatively. Our study shows the appearance of leakage in some patients despite a well-balanced bladder, a decrease in mean cystomanometric capacity and an increase in the rate of NDO postoperatively. Good selection criteria for an isolated CCUD should be carefully revised and defined. LEVEL OF EVIDENCE Grade C - retrospective study.
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Affiliation(s)
- O Decombe
- Department of Urology, Sorbonne université, Pitié-Salpêtrière Academic Hospital, AP-HP, Paris, France.
| | - T Germain
- Department of Urology, Sorbonne université, Pitié-Salpêtrière Academic Hospital, AP-HP, Paris, France
| | - L Lenfant
- Department of Urology, Sorbonne université, Pitié-Salpêtrière Academic Hospital, AP-HP, Paris, France
| | - A Denormandie
- Department of Urology, Sorbonne université, Pitié-Salpêtrière Academic Hospital, AP-HP, Paris, France
| | - M Felber
- Department of Urology, Sorbonne université, Pitié-Salpêtrière Academic Hospital, AP-HP, Paris, France
| | - G Robain
- Department of rehabilitation, Sorbonne université, Rothschild Hospital, AP-HP, Paris, France
| | - P Denys
- Department of rehabilitation, Paris-Saclay University, Raymond-Poincaré Hospital, AP-HP, Paris, France
| | - E Chartier-Kastler
- Department of Urology, Sorbonne université, Pitié-Salpêtrière Academic Hospital, AP-HP, Paris, France
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Seizilles de Mazancourt E, Khene Z, Sbizerra M, Kaulanjan K, Plassais C, Bardet F, Pinar U, Duquesne I, Margue G, Ali Benali N, Berchiche W, Gaillard C, Wandoren W, Manuguerra A, Dang VT, Mauger de Varennes A, Hulin M, Gaillard V, Dominique I, Michiels C, Grevez T, Felber M, Vallee M, Gondran-Tellier B, Freton L, Lannes F, Pradère B, Matillon X. Cut-off time for surgery and prediction of orchiectomy in spermatic cord torsion: a retrospective multicentric study over 15 years. World J Urol 2023; 41:3789-3794. [PMID: 37897515 DOI: 10.1007/s00345-023-04671-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 09/26/2023] [Indexed: 10/30/2023] Open
Abstract
PURPOSE Cut-off time to avoid orchiectomy relies on small series of patients. The objective was to determine the cut-off time to avoid orchiectomy in torsion of the spermatic cord in a large cohort. METHODS We performed a retrospective multicenter study (TORSAFUF cohort) of patients with suspected spermatic cord torsion between 2005 and 2019. All patients aged > 12 years who were suspected of having a torsion of the spermatic cord in 14 University Hospitals in France were included (n = 2986). Patients for whom data on pain duration were not available (n = 923) or for whom the final diagnosis was not torsion of the spermatic cord (n = 807) were excluded. The primary outcome was orchiectomy. The secondary outcomes were testicular survival time and the prediction of orchiectomy with the duration of pain. RESULTS 1266 patients were included with an orchiectomy rate of 12% (150 patients). The mean age was 21.5 years old in the salvage group and 23.7 years old in the orchiectomy group (p = 0.01), respectively. The median time from the onset of pain to surgery was 5.5 (IQR = 5) hours in the salvage group and 51.1 (IQR = 70) hours in the orchiectomy group (p < 0.0001). The risk of orchiectomy increased after a time cut-off of 6 h 30. A delay of 15 h 30 in pain duration was found to predict orchiectomy (sensitivity: 0.81; specificity: 0.87). CONCLUSIONS Pain duration can predict the probability of salvaging the testicles and performing orchiectomy. Rapid intervention should be recommended, regardless of the time elapsed from the onset of pain.
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Affiliation(s)
- Emilien Seizilles de Mazancourt
- Urology and Transplantation Surgery, Edouard Herriot Hospital, Lyon, France.
- Univ Lyon, Université Claude Bernard Lyon 1, Lyon, France.
| | - Zinnedine Khene
- Department of Urology, Rennes University Hospital, Rennes, France
| | - Marc Sbizerra
- Department of Urology, Lyon Sud Hospital, Lyon, France
| | - Kevin Kaulanjan
- Department of Urology, Pointe A Pitre University Hospital, Guadeloupe, France
| | - Caroline Plassais
- Department of Urology, APHP, Hôpitaux Universitaires Pitie-Salpetriere-Charles Foix, Sorbonne Université, Paris, France
| | - Florian Bardet
- Department of Urology, Dijon University Hospital, Dijon, France
| | - Ugo Pinar
- Department of Urology, APHP, Hôpitaux Universitaires Pitie-Salpetriere-Charles Foix, Sorbonne Université, Paris, France
| | - Igor Duquesne
- Department of Urology, APHP, Hôpital Cochin, Université de Paris, Paris, France
| | - Gaelle Margue
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - Nadia Ali Benali
- Department of Urology, Poitiers University Hospital, Poitiers, France
| | - William Berchiche
- Department of Urology, La Conception University Hospital, Marseille, France
| | | | - William Wandoren
- Department of Urology, Pointe A Pitre University Hospital, Guadeloupe, France
| | | | - Van Thi Dang
- Department of Urology, Toulouse University Hospital, Toulouse, France
| | | | - Maud Hulin
- Department of Urology, Reims University Hospital, Reims, France
| | - Victor Gaillard
- Department of Urology, Strasbourg University Hospital, Strasbourg, France
| | | | - Clement Michiels
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - Tristan Grevez
- Department of Urology, Tours University Hospital, Tours, France
| | - Margaux Felber
- Department of Urology, APHP, Hôpitaux Universitaires Pitie-Salpetriere-Charles Foix, Sorbonne Université, Paris, France
| | - Maxime Vallee
- Department of Urology, Poitiers University Hospital, Poitiers, France
| | | | - Lucas Freton
- Department of Urology, Rennes University Hospital, Rennes, France
| | - François Lannes
- Department of Urology, La Conception University Hospital, Marseille, France
| | - Benjamin Pradère
- Department of Urology, Toulouse University Hospital, Toulouse, France
| | - Xavier Matillon
- Urology and Transplantation Surgery, Edouard Herriot Hospital, Lyon, France
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Debedde E, Felber M, Coelho J, Fabiano E, Durdux C, Timsit MO, Méjean A, Audenet F. Management and outcomes of non-muscle invasive bladder recurrence after complete response to trimodality therapy for muscle-invasive bladder cancer: A monocentric experience. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00841-7] [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: 11/04/2022]
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Ali Benali N, Pradère B, Lannes F, Thi Dang V, Mauger de Varennes A, Gaillard C, Berchiche W, Margue G, Bardet F, Manuguerra A, Pinar U, Duquesne I, Plassais C, Wandoren W, Hulin M, Khene ZE, Vallée M, Michiels C, Chabenes M, Gaillard V, Felber M, Kaulanjan K, Dominique I, Sbizerra M, Seizilles de Mazancourt E, Freton L, Gondran-Tellier B, Matillon X. TORSAFUF - Surgical exploration for torsion of spermatic cord suspicion and risk factors for unnecessary surgery: Results of a French nationwide retrospective study on 2940 patients. Prog Urol 2021; 32:92-100. [PMID: 34920923 DOI: 10.1016/j.purol.2021.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/10/2021] [Accepted: 10/31/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUNDS Spermatic cord torsion is a frequent urological emergency that mostly concerns teenagers and young adults. This study aimed to determine the clinical and surgical characteristics of young adults who had scrotal exploration for suspected spermatic cord torsion and to identify clinical risk factors associated with needless scrotal exploration. METHODS We retrospectively collected national data from patients aged 12years and older who underwent a surgical exploration for suspicion of torsion of the spermatic cord between 2005 and 2019 in 17 hospitals. We analyzed demographics, surgical and postoperative characteristics in our population. We compared the cohort according to the intraoperative diagnosis of torsion or not. RESULTS In total, 2940 had surgical exploration: 1802 (61.3%) patients had torsion of the spermatic cord and 1138 (38.7%) had another diagnosis. In multivariate analysis, age (OR: 1.04; 95% CI: 1.01-1.06; P=0.005), medical history of cryptorchism (OR: 4.14; 95% CI: 1.05-16.31; P=0.042) and VAS pain score (OR: 0.91; 95% CI: 0.83-0.98; P=0.018) were risk factors significantly associated with unnecessary surgical exploration. The rate of complications in the 90days after surgery was 11% in the "torsion" group, and 9.7% in the "non-torsion" group (P=0.28). CONCLUSION Scrotal exploration without intraoperative diagnosis of torsion was performed in 40% of our cohort. VAS pain score and cryptorchism history can help for the diagnosis but scrotal exploration remains the way to diagnose spermatic cord torsion and should be performed on the slightest suspicion, even after 24hours of symptoms, as the chances for testicular salvage remains around 50%.
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Affiliation(s)
- N Ali Benali
- Department of Urology, Poitiers University Hospital, Poitiers, France.
| | - B Pradère
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - F Lannes
- Department of Urology, Nord University Hospital, Marseille, France
| | - V Thi Dang
- Department of Urology, Toulouse University Hospital, Toulouse, France
| | | | - C Gaillard
- Department of Urology, Tours University Hospital, Tours, France
| | - W Berchiche
- Department of Urology, Nord University Hospital, Marseille, France
| | - G Margue
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - F Bardet
- Department of Urology, Dijon University Hospital, Dijon, France
| | - A Manuguerra
- Department of Urology, Nancy University Hospital, Nancy, France
| | - U Pinar
- Department of Urology, Hôpitaux Universitaire Pitié-Salpêtrière, AP-HP, Paris, France
| | - I Duquesne
- Department of Urology, Hôpitaux Universitaire Pitié-Salpêtrière, AP-HP, Paris, France
| | - C Plassais
- Department of Urology, Hôpitaux Universitaire Pitié-Salpêtrière, AP-HP, Paris, France
| | - W Wandoren
- Department of Urology, Pointe-à-Pitre University Hospital, Pointe-à-Pitre, Guadeloupe
| | - M Hulin
- Department of Urology, Reims University Hospital, Reims, France
| | - Z-E Khene
- Department of Urology, Rennes University Hospital, Rennes, France
| | - M Vallée
- Department of Urology, Poitiers University Hospital, Poitiers, France; Poitiers University, INSERM U1070, "Pharmacologie des Anti-Infectieux", UFR Médecine-Pharmacie, Pôle Biologie Santé, Poitiers, France
| | | | - C Michiels
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - M Chabenes
- Department of Urology, Grenoble University Hospital, Grenoble, France
| | - V Gaillard
- Department of Urology, Strasbourg University Hospital, Strasbourg, France
| | - M Felber
- Department of Urology, Nancy University Hospital, Nancy, France
| | - K Kaulanjan
- Department of Urology, Pointe-à-Pitre University Hospital, Pointe-à-Pitre, Guadeloupe
| | - I Dominique
- Department of Urology, Lyon Sud University Hospital, Lyon, France
| | - M Sbizerra
- Department of Urology, Lyon Sud University Hospital, Lyon, France
| | | | - L Freton
- Department of Urology, Rennes University Hospital, Rennes, France
| | | | - X Matillon
- Department of Urology, Lyon Sud University Hospital, Lyon, France
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Pinar U, Freton L, Gondran-Tellier B, Vallée M, Dominique I, Felber M, Khene ZE, Fortier E, Lannes F, Michiels C, Grevez T, Szabla N, Bardet F, Kaulanjan K, Seizilles de Mazancourt E, Matillon X, Pradere B. Educational program in onco-urology for young urologists: What are their needs? Prog Urol 2021; 31:755-761. [PMID: 34154958 DOI: 10.1016/j.purol.2021.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/15/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The emergence of new communication media such as digital contents are progressively replacing more traditional medias in the field of educational programs. Our purpose was to assess urologist in training aspirations regarding urological education. METHODS Members of a national urologist in training association were sent an anonymous online questionnaire regarding their medical formation in the field of urology. Responders interest for urological sub-specialty or education support (new tools and traditional support) were evaluated through a 5-point Likert scale. RESULTS Overall, 109 young urologists (26%) responded to the survey. Most of the respondents worked during their training in an academic hospital (n=89, 82%). The three favorite tools for training chosen by the responders were: videos, workshop or masterclass, and podcasts (responders very interested were respectively n=64 (58.7%), n=50 (45.9%), and n=49 (45%)). E-mail newsletters were reported as the less useful educational tool by participants (n=38, 34.9%). Participants were very interested in improving their surgical skills and their radiological knowledge. Responders who were the most attracted by PCa were much more looking to improve their systemic treatment and radiological knowledges. CONCLUSIONS Urologic-oncology was a priority regarding education for urologists in training. A majority of participants expressed a lack in their surgical education, revealing a reduced OR access and underlining utilization of new tools such as simulation. New digital contents such as social media or podcast achieved high interest for the participants, instead of more traditional media. There is a need that educational content evolve and uses new digital media. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- U Pinar
- GRC n(o) 5, Predictive onco-urology, AP-HP, Hôpital Pitié-Salpêtrière, Urology, Sorbonne université, 75013 Paris, France
| | - L Freton
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - B Gondran-Tellier
- Department of urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - M Vallée
- Department of Urology, Poitiers University Hospital, Poitiers, France
| | - I Dominique
- Department of Urology, groupe hospitalier Diaconesses Croix Saint-Simon, Paris, France
| | - M Felber
- GRC n(o) 5, Predictive onco-urology, AP-HP, Hôpital Pitié-Salpêtrière, Urology, Sorbonne université, 75013 Paris, France
| | - Z-E Khene
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - E Fortier
- Department of Urology, Montpellier University Hospital, Montpellier, France
| | - F Lannes
- Department of urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - C Michiels
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - T Grevez
- Department of Urology, CHRU de Tours, Francois-Rabelais University, France
| | - N Szabla
- Department of Urology and Transplantation, Caen University Hospital, Caen, France
| | - F Bardet
- Department of Urology, Dijon University Hospital, Dijon, France
| | - K Kaulanjan
- Department of Urology, CHU de Pointe-à-Pitre, Guadeloupe, France
| | - E Seizilles de Mazancourt
- Department of Urology and Transplantation, Edouard-Herriot Hospital, Hospices civils de Lyon, Lyon, France
| | - X Matillon
- Department of Urology and Transplantation, Edouard-Herriot Hospital, Hospices civils de Lyon, Lyon, France
| | - B Pradere
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
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Prudhomme T, Matillon X, Dengu F, de Mazancourt E, Pinar U, Gondran-Tellier B, Freton L, Vallée M, Dominique I, Felber M, Khene ZE, Fortier E, Lannes F, Michiels C, Grevez T, Szabla N, Bardet F, Kaulanjan K, Pradère B, Deschamps JY, Branchereau J. Residents and patients benefit from surgical simulation on a live porcine model, could we consider it as ethical? Prog Urol 2021; 31:618-626. [PMID: 34158220 DOI: 10.1016/j.purol.2021.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/16/2021] [Accepted: 01/29/2021] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The objective was to evaluate, by self-questionnaire, the feeling of participants in surgical training sessions on a live porcine model. METHODS A computerized questionnaire (GoogleForm ©) was sent to the members of the French Association of Urologists-in-Training (AFUF) (fellows and residents). Only questionnaires from Urologists-in-training who had participated in surgical training sessions were included. The sessions consisted of performing surgeries such as laparoscopic nephrectomies or laparoscopic cystectomies. RESULTS Overall, 198 met the inclusion criteria. A total of 36.4% (72/198) of the participants were fellows and 63.6% (126/198) were residents. According to the participants, the main interest of sessions was to be able to train for emergency situations. A total of 79.8% (158/198) of the participants wanted surgical simulation to become compulsory. To their opinion, the main advantage of surgical simulation on a live porcine model was: technical progress in 87.4% (173/198) of cases. A total of 13.1% (26/198) of the participants found it was unethical to perform the first technical procedures on live animal models. A total of 65.7% (130/198) of the participants considered that there is currently no system of substitution. CONCLUSION For the participants, surgical training on a live porcine model allows technical progress while training for serious emergency situations. Surgeons and patients could benefit from this risk-free mock surgical scenario. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- T Prudhomme
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU de Nantes, 44093 Nantes, France; Centre de Recherche en Transplantation et Immunologie (CRTI), UMR1064, INSERM, Université de Nantes, Nantes, France; Department of Urology, Kidney Transplantation and Andrology, Toulouse University Hospital, Toulouse, France.
| | - X Matillon
- Department of Urology and Transplantation, Hospices civils de Lyon, Lyon, France
| | - F Dengu
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - E de Mazancourt
- Department of Urology and Transplantation, Hospices civils de Lyon, Lyon, France
| | - U Pinar
- Department of Urology, University Paris Saclay, Bicêtre Hospital, AP-HP, Le Kremlin-Bicêtre, France
| | - B Gondran-Tellier
- Department of Urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - L Freton
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - M Vallée
- Department of Urology, Poitiers University Hospital, Poitiers, France
| | - I Dominique
- Department of Urology, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, France
| | - M Felber
- Department of Urology, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Z-E Khene
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - E Fortier
- Department of Urology, Montpellier University Hospital, Montpellier, France
| | - F Lannes
- Department of Urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - C Michiels
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - T Grevez
- Department of Urology, Tours University Hospital, Tours, France
| | - N Szabla
- Department of Urology and Transplantation, Caen University Hospital, Caen, France
| | - F Bardet
- Department of Urology, Dijon University Hospital, Dijon, France
| | - K Kaulanjan
- Department of Urology, Pointe à Pitre University Hospital, Guadeloupe, France
| | - B Pradère
- Department of Urology, Tours University Hospital, Tours, France
| | - J-Y Deschamps
- Emergency and Critical Care Unit, ONIRIS, School of Veterinary Medecine, La Chantrerie, Nantes, France
| | - J Branchereau
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU de Nantes, 44093 Nantes, France; Centre de Recherche en Transplantation et Immunologie (CRTI), UMR1064, INSERM, Université de Nantes, Nantes, France; Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
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Berchiche W, Sbizzera M, Lannes F, Pinar U, Duquesne I, Felber M, Plassais C, Dang V, Ali Benali N, Gaillard C, Mauger De Varennes A, Margue G, Bardet F, Hulin M, Manuguerra A, Wandoren W, Chabennes M, Gaillard V, Matillon X, Khene Z, Pradere B. Impact of testicular torsion on fertility and erectile dysfunction: A multicenter national retrospective studyTORSAFUF. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00899-x] [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: 12/01/2022]
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Pinar U, Duquesne I, Lannes F, Bardet F, Kaulanjan K, Michiels C, Seizilles de Mazancourt E, Dominique I, Vallee M, Felber M, Freton L, Gondran-Tellier B, Matillon X, Khene ZE, Pradere B. The Use of Doppler Ultrasound for Suspected Testicular Torsion: Lessons Learned from a 15-Year Multicentre Retrospective Study of 2922 Patients. Eur Urol Focus 2021; 8:105-111. [PMID: 33663983 DOI: 10.1016/j.euf.2021.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 10/29/2020] [Revised: 02/07/2021] [Accepted: 02/18/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Use of Doppler ultrasonography (DUS) for patients with suspected testicular torsion (TT) is highly controversial and remains debated, as it can delay surgery and its performance may vary. OBJECTIVE To assess the role, impact, safety, and performance of DUS in the management of patients with suspected TT before scrotal exploration. DESIGN, SETTING, AND PARTICIPANTS The TORSAFUF cohort retrospectively included patients older than 12 yr who underwent surgery for suspected TT in 14 academic hospitals between 2005 and 2019. Perioperative data and surgical and DUS reports were collected. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Clinical factors influencing DUS utilisation were analysed using multivariate logistic regression. The orchidectomy rate and delay to surgery were compared by group with and without DUS receipt using one-to-one propensity score (PS) matching to assess imaging safety. For the group with preoperative imaging, DUS performance was evaluated using a contingency table. RESULTS AND LIMITATIONS Overall, 2922 patients were included, of whom 956 (32.7%) underwent DUS before surgery. DUS was more likely to be performed in older patients (odds ratio [OR] 1.1, 95% confidence interval [CI] 1.1-1.2), those who experienced progressive onset of pain (OR 1.5, 95% CI 1.1-2), and patients who presented at the emergency department more than 6 h after their first scrotal symptoms (OR 2.3, 95% CI 1.9-2.8). After PS matching, DUS receipt was not significantly associated with orchidectomy but the delay to surgery was 1 h longer. DUS demonstrated strong sensitivity of 85.2% (95% CI 82.1-88.3%) and specificity of 52.7% (95% CI 48.8-56.6%). The performance was better for younger patients and for those with time since onset of pain of >6 h. CONCLUSIONS In this large retrospective study, DUS before surgery was safe, feasible, and useful in selected cases with suspected TT, but it should not delay or replace surgery in cases with a strong clinical suspicion. PATIENT SUMMARY We analysed the performance and safety of an ultrasound scan of the scrotum before surgery for patients with a suspected twisted testicle (TT). This scan before surgery was not associated with a higher risk of negative outcomes but was only moderate in accurately diagnosing TT. Surgery to correct TT should not be delayed.
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Affiliation(s)
- Ugo Pinar
- Department of Urology, Hôpitaux Universitaires Pitie-Salpetriere-Charles Foix, AP-HP, Sorbonne Université, Paris, France.
| | - Igor Duquesne
- Department of Urology, Hôpital Cochin, AP-HP, Université de Paris, Paris France
| | - François Lannes
- Department of Urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - Florian Bardet
- Department of Urology, Dijon University Hospital, Dijon, France
| | - Kevin Kaulanjan
- Department of Urology, CHU Pointe à Pitre, Guadeloupe, France
| | - Clément Michiels
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | | | - Ines Dominique
- Department of Urology, Groupe Hospitalier Diaconesses-Croix Saint-Simon, Paris, France
| | - Maxime Vallee
- Department of Urology, Poitiers University Hospital, Poitiers, France
| | - Margaux Felber
- Department of Urology, Hôpitaux Universitaires Pitie-Salpetriere-Charles Foix, AP-HP, Sorbonne Université, Paris, France
| | - Lucas Freton
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - Bastien Gondran-Tellier
- Department of Urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - Xavier Matillon
- Department of Urology and Transplantation, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Zine-Edine Khene
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - Benjamin Pradere
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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9
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Nyangoh Timoh K, Moszkowicz D, Creze M, Zaitouna M, Felber M, Lebacle C, Diallo D, Martinovic J, Tewari A, Lavoué V, Ghukasyan G, Benoit G, Bessede T. The male external urethral sphincter is autonomically innervated. Clin Anat 2020; 34:263-271. [PMID: 33131096 DOI: 10.1002/ca.23698] [Citation(s) in RCA: 8] [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: 08/03/2020] [Revised: 10/19/2020] [Accepted: 10/24/2020] [Indexed: 11/11/2022]
Abstract
INTRODUCTION The aim of the present study was to describe autonomic urethral sphincter (US) innervation using specific muscular and neuronal antibody markers and 3D reconstruction. MATERIAL AND METHODS We performed en-bloc removal of the entire pelvis of three male human fetuses between 18 and 40 weeks. Serial whole mount sections (5 μm intervals) were stained and investigated. The sections were stained with Masson's trichrome and Eosin Hematoxylin, and immunostained with: anti-SMA antibody for smooth muscle; anti-S100 antibody for all nerves; and anti-PMP22 antibody, anti-TH antibody, anti-CGRP antibody, anti-NOS antibody for somatic, adrenergic, sensory and nitrergic nerve fibers, respectively. The slides were digitized for 3D reconstruction to improve topographical understanding. An animated reconstruction of the autonomic innervation of the US was generated. RESULTS The external and internal US are innervated by autonomic nerves of the inferior hypogastric plexus (IHP). These nerves are sympathetic (positive anti-TH antibody), sensory (positive anti-CGRP antibody), and nitrergic (positive anti-NOS antibody). Some autonomic fibers run within the neurovascular bundles, posterolaterally. Others run from the IHP to the posteromedial aspect of the prostate apex, above an through the rectourethral muscle. The external US is also innervated by somatic nerves (positive anti-PMP22 antibody) arising from the pudendal nerve, joining the midline but remaining below the rectourethral. CONCLUSIONS This study provides anatomical evidence of an autonomic component in the innervation of the external US that travels in the neurovascular bundle. During radical prostatectomy, the rectourethral muscle and the neurovascular bundles are to be preserved, particularly during apical dissection.
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Affiliation(s)
- Krystel Nyangoh Timoh
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Department of Obstetrics and Gynecology, Hopital Universitaire de Rennes, university Rennes 1, Rennes, France
| | - David Moszkowicz
- Université de Paris, Gastrointestinal and Metabolic Dysfunctions in Nutritional Pathologies Centre de Recherche sur l'Inflammation Paris Montmartre INSERM UMRS 1149, Paris, France.,Service de chirurgie générale et digestive, AP-HP, Hôpital Louis Mourier, DMU ESPRIT-GHU AP-HP, Nord-Université de Paris, Colombes, France
| | - Maud Creze
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Mazen Zaitouna
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Margaux Felber
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Cédric Lebacle
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Urology Department, Hopitaux Universitaires Paris-Sud, APHP, Le Kremlin-Bicetre, France
| | - Djibril Diallo
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Jelena Martinovic
- Department of Fetal Pathology, Hopitaux universitaires Paris-Sud, APHP, Clamart, France
| | - Ashutosh Tewari
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Vincent Lavoué
- Department of Obstetrics and Gynecology, Hopital Universitaire de Rennes, university Rennes 1, Rennes, France
| | - Gevorg Ghukasyan
- Université de Rennes 1, Rennes, France.,INSERM, UMR991 Liver Metabolism and Cancer, Rennes, France
| | - Gerard Benoit
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Thomas Bessede
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Urology Department, Hopitaux Universitaires Paris-Sud, APHP, Le Kremlin-Bicetre, France
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10
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Seizilles de Mazancourt E, Pradere B, Duquesne I, Pinar U, Felber M, Plassais C, Dang V, Ali Benali N, Berchiche W, Gaillard C, Mauger de Varennes A, Margue G, Bardet F, Hulin M, Manuguerra A, Wandoren W, Chabenes M, Sbizzera M, Khene Z, Matillon X. Heure limite de prise en charge opératoire pour torsion du cordon spermatique : résultats d’une série rétrospective multicentrique de 2986 patients sur 15 ans. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.206] [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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11
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Mauger de Varennes A, Khene Z, Pradere B, Lannes F, Freton L, Dang V, Berchiche W, Ortier E, Michiels C, Margue G, Gaillard C, Ali Benali N, Bardet F, Hulin M, Gaillard V, Manuguerra A, Pinar U, Duquesne I, Felber M, Plassais C. Marqueurs biologiques préopératoires prédictifs de la viabilité testiculaire suite à une torsion du cordon spermatique. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.058] [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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12
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Prudhomme T, Matillon X, Seizilles de Mazancourt E, Pinar U, Gondran-Tellier B, Vallée M, Dominique I, Felber M, Khene Z, Fortier E, Lannes F, Michiels C, Grevez T, Szabla N, Bardet F, Kaulanjan K, Pradère B, Deschamps J, Branchereau J. Simulation chirurgicale sur modèle vivant porcin : enquête auprès des urologues français en formation. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Abdessater M, Rouprêt M, Misrai V, Matillon X, Gondran-Tellier B, Freton L, Vallée M, Dominique I, Felber M, Khene ZE, Fortier E, Lannes F, Michiels C, Grevez T, Szabla N, Boustany J, Bardet F, Kaulanjan K, Seizilles de Mazancourt E, Ploussard G, Pinar U, Pradere B. COVID19 pandemic impacts on anxiety of French urologist in training: Outcomes from a national survey. Prog Urol 2020; 30:448-455. [PMID: 32376208 PMCID: PMC7177119 DOI: 10.1016/j.purol.2020.04.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [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: 04/09/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The COVID-19 outbreak in France is disturbing our health system. Urologists in training who are already known to have burnout, are in the front line to face this disease. The aim of our study was to assess the psychological impact of COVID-19 pandemic on young French urologists in training. MATERIAL AND METHODS A self-administered anonymous questionnaire evaluating the pandemic added stress, and its negative impact on work and training quality, was e-mailed to the members of the French Association of Urologists in Training (AFUF). The association includes all French junior and senior residents. The survey lasted 3 days. Multivariable analyses using logistic regression was performed to identify the predictive factors. RESULTS Two hundred and seventy-five (55.5%) of the 495 AFUF members responded to the questionnaire. More than 90% of responders felt more stressed by the pandemic. Fellows and senior residents were more likely to feel that the crisis had an important impact on their work quality (OR=1.76, IC95=[1.01-3.13]), even more when COVID 19 patients were present in their department (OR=2.31, IC95=[1.20-4.65]). Past medical history of respiratory disease (OR=2.57, IC95=[1.31-5.98]) and taking in charge COVID19 patients (OR=1.85, IC95=[0.98-3.59]) were additional risk factors. CONCLUSION COVID19 pandemic has a negative impact on young French urologists in training and on their work and training quality. Managing their psychosocial well-being during this time is as important as managing their physical health. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- M Abdessater
- Sorbonne Université, GRC n(o) 5, Predictive onco-urology, AP-HP, Hôpital Pitié-Salpêtrière, Urology, 75013 Paris, France
| | - M Rouprêt
- Sorbonne Université, GRC n(o) 5, Predictive onco-urology, AP-HP, Hôpital Pitié-Salpêtrière, Urology, 75013 Paris, France.
| | - V Misrai
- Clinique Pasteur, 31300 Toulouse, France
| | - X Matillon
- Department of Urology and Transplantation, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - B Gondran-Tellier
- Department of Urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - L Freton
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - M Vallée
- Department of Urology, Poitiers University Hospital, Poitiers, France
| | - I Dominique
- Department of Urology, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, France
| | - M Felber
- Sorbonne Université, GRC n(o) 5, Predictive onco-urology, AP-HP, Hôpital Pitié-Salpêtrière, Urology, 75013 Paris, France
| | - Z-E Khene
- Department of Urology, University Hospital of Rennes, Rennes, France
| | - E Fortier
- Department of Urology, Montpellier University Hospital, Montpellier, France
| | - F Lannes
- Department of Urology, La Conception University Hospital, Assistance-Publique Marseille, Marseille, France
| | - C Michiels
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - T Grevez
- Department of Urology, CHRU Tours, Francois Rabelais University, Tours, France
| | - N Szabla
- Department of Urology and Transplantation, Caen University Hospital, Caen, France
| | - J Boustany
- Department of Urology and Renal Transplantation, Henri Mondor University Hospital, Créteil, France
| | - F Bardet
- Department of Urology, Dijon University Hospital, Dijon, France
| | - K Kaulanjan
- Department of Urology, CHU Pointe-à-Pitre, Pointe-à-Pitre, Guadeloupe
| | - E Seizilles de Mazancourt
- Department of Urology and Transplantation, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - G Ploussard
- Department of Urology, Ramsay Santé, Clinique La Croix du Sud, Quint Fonsegrives, France
| | - U Pinar
- Sorbonne Université, GRC n(o) 5, Predictive onco-urology, AP-HP, Hôpital Pitié-Salpêtrière, Urology, 75013 Paris, France
| | - B Pradere
- Department of Urology, CHRU Tours, Francois Rabelais University, Tours, France; Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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14
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Steffen B, Gerth C, Caselle M, Felber M, Kozak T, Makowski DR, Mavrič U, Mielczarek A, Peier P, Przygoda K, Rota L. Compact single-shot electro-optic detection system for THz pulses with femtosecond time resolution at MHz repetition rates. Rev Sci Instrum 2020; 91:045123. [PMID: 32357714 DOI: 10.1063/1.5142833] [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] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/08/2020] [Indexed: 05/23/2023]
Abstract
Electro-optical detection has proven to be a valuable technique to study temporal profiles of THz pulses with pulse durations down to femtoseconds. As the Coulomb field around a relativistic electron bunch resembles the current profile, electro-optical detection can be exploited for non-invasive bunch length measurements at accelerators. We have developed a very compact and robust electro-optical detection system based on spectral decoding for single-shot longitudinal bunch profile monitoring at the European X-ray Free Electron Laser (XFEL) for electron bunch lengths down to 200 fs (rms). Apart from the GaP crystal and the corresponding laser optics at the electron beamline, all components are housed in 19 in. chassis for rack mount and remote operation inside the accelerator tunnel. An advanced laser synchronization scheme based on radio-frequency down-conversion has been developed for locking a custom-made Yb-fiber laser to the radio-frequency of the European XFEL accelerator. In order to cope with the high bunch repetition rate of the superconducting accelerator, a novel linear array detector has been employed for spectral measurements of the Yb-fiber laser pulses at frame rates of up to 2.26 MHz. In this paper, we describe all sub-systems of the electro-optical detection system as well as the measurement procedure in detail and discuss the first measurement results of longitudinal bunch profiles of around 400 fs (rms) with an arrival-time jitter of 35 fs (rms).
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Affiliation(s)
- B Steffen
- MSK, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - Ch Gerth
- MSK, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - M Caselle
- IPE, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - M Felber
- MSK, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - T Kozak
- MSK, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - D R Makowski
- DMCS, Łódź University of Technology (TUL), 90-924 Łódź, Poland
| | - U Mavrič
- MSK, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - A Mielczarek
- DMCS, Łódź University of Technology (TUL), 90-924 Łódź, Poland
| | - P Peier
- MSK, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - K Przygoda
- MSK, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - L Rota
- IPE, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
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15
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Imstepf S, Pierroz V, Raposinho P, Felber M, Fox T, Fernandes C, Gasser G, Santos IR, Alberto R. Towards99mTc-based imaging agents with effective doxorubicin mimetics: a molecular and cellular study. Dalton Trans 2016; 45:13025-33. [DOI: 10.1039/c6dt00871b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
99mTc and Re conjugates of Doxorubicin accumulate in the nucleus, bind tightly to DNA and retain hTopoII inhibition.
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Affiliation(s)
- S. Imstepf
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - V. Pierroz
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
- Institute of Molecular Cancer Research
| | - P. Raposinho
- Centro de Ciências e Tecnologias Nucleares
- Universidade de Lisboa
- PT-2695-066 Bobadela LRS
- Portugal
| | - M. Felber
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - T. Fox
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - C. Fernandes
- Centro de Ciências e Tecnologias Nucleares
- Universidade de Lisboa
- PT-2695-066 Bobadela LRS
- Portugal
| | - G. Gasser
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - I. R. Santos
- Centro de Ciências e Tecnologias Nucleares
- Universidade de Lisboa
- PT-2695-066 Bobadela LRS
- Portugal
| | - R. Alberto
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
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16
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Abstract
The development of nanoparticle-based dual-modality probes for magnetic resonance imaging (MRI) and positron emission tomography (PET) or single photon emission computed tomography (SPECT) is increasingly growing in importance. One of the most commonly used radionuclides for clinical SPECT imaging is (99m)Tc and the labelling of Fe3O4 nanoparticles with (99m)Tc was shown to be a successful strategy to obtain dual-modality imaging agents. In this work, we focus on gold containing magnetic nanomaterials. The radiolabelling of magnetic Fe3O4-Au core-shell and Fe3O4-Au dumbbell-like nanoparticles with the [(99m)Tc(CO)3](+) fragment is described. The key elements for this (99m)Tc labelling approach are novel coating ligands, consisting of an anchor for the Au surface, a polyethylene glycol linker and a strong chelator for the [(99m)Tc(CO)3](+) moiety.
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Affiliation(s)
- M Felber
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
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17
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Schulz S, Grguraš I, Behrens C, Bromberger H, Costello JT, Czwalinna MK, Felber M, Hoffmann MC, Ilchen M, Liu HY, Mazza T, Meyer M, Pfeiffer S, Prędki P, Schefer S, Schmidt C, Wegner U, Schlarb H, Cavalieri AL. Femtosecond all-optical synchronization of an X-ray free-electron laser. Nat Commun 2015; 6:5938. [PMID: 25600823 PMCID: PMC4309427 DOI: 10.1038/ncomms6938] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 11/24/2014] [Indexed: 11/20/2022] Open
Abstract
Many advanced applications of X-ray free-electron lasers require pulse durations and time resolutions of only a few femtoseconds. To generate these pulses and to apply them in time-resolved experiments, synchronization techniques that can simultaneously lock all independent components, including all accelerator modules and all external optical lasers, to better than the delivered free-electron laser pulse duration, are needed. Here we achieve all-optical synchronization at the soft X-ray free-electron laser FLASH and demonstrate facility-wide timing to better than 30 fs r.m.s. for 90 fs X-ray photon pulses. Crucially, our analysis indicates that the performance of this optical synchronization is limited primarily by the free-electron laser pulse duration, and should naturally scale to the sub-10 femtosecond level with shorter X-ray pulses. Few-femtosecond synchronization at free-electron lasers is key for nearly all experimental applications, stable operation and future light source development. Here, Schulz et al. demonstrate all-optical synchronization of the soft X-ray FEL FLASH to better than 30 fs and illustrate a pathway to sub-10 fs.
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Affiliation(s)
- S Schulz
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - I Grguraš
- 1] Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany [2] Center for Free-electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany [3] University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - C Behrens
- 1] Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - H Bromberger
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - J T Costello
- School of Physical Sciences and National Center for Plasma Science and Technology (NCPST), Dublin City University, Glasnevin, Dublin 9, Ireland
| | - M K Czwalinna
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - M Felber
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - M C Hoffmann
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - M Ilchen
- European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany
| | - H Y Liu
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - T Mazza
- European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany
| | - M Meyer
- European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany
| | - S Pfeiffer
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - P Prędki
- Department of Microelectronics and Computer Science, Lodz University of Technology, ul. Wólczanska 221/223, 90-924 Łódź, Poland
| | - S Schefer
- University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - C Schmidt
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - U Wegner
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - H Schlarb
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - A L Cavalieri
- 1] Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany [2] Center for Free-electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany [3] University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
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18
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He BJ, Nolte G, Nagata K, Takano D, Yamazaki T, Fujimaki Y, Maeda T, Satoh Y, Heckers S, George MS, Lopes da Silva F, de Munck JC, Van Houdt PJ, Verdaasdonk RM, Ossenblok P, Mullinger K, Bowtell R, Bagshaw AP, Keeser D, Karch S, Segmiller F, Hantschk I, Berman A, Padberg F, Pogarell O, Scharnowski F, Karch S, Hümmer S, Keeser D, Paolini M, Kirsch V, Koller G, Rauchmann B, Kupka M, Blautzik J, Pogarell O, Razavi N, Jann K, Koenig T, Kottlow M, Hauf M, Strik W, Dierks T, Gotman J, Vulliemoz S, Lu Y, Zhang H, Yang L, Worrell G, He B, Gruber O, Piguet C, Hubl D, Homan P, Kindler J, Dierks T, Kim K, Steinhoff U, Wakai R, Koenig T, Kottlow M, Melie-García L, Mucci A, Volpe U, Prinster A, Salvatore M, Galderisi S, Linden DEJ, Brandeis D, Schroeder CE, Kayser C, Panzeri S, Kleinschmidt A, Ritter P, Walther S, Haueisen J, Lau S, Flemming L, Sonntag H, Maess B, Knösche TR, Lanfer B, Dannhauer M, Wolters CH, Stenroos M, Haueisen J, Wolters C, Aydin U, Lanfer B, Lew S, Lucka F, Ruthotto L, Vorwerk J, Wagner S, Ramon C, Guan C, Ang KK, Chua SG, Kuah WK, Phua KS, Chew E, Zhou H, Chuang KH, Ang BT, Wang C, Zhang H, Yang H, Chin ZY, Yu H, Pan Y, Collins L, Mainsah B, Colwell K, Morton K, Ryan D, Sellers E, Caves K, Throckmorton S, Kübler A, Holz EM, Zickler C, Sellers E, Ryan D, Brown K, Colwell K, Mainsah B, Caves K, Throckmorton S, Collins L, Wennberg R, Ahlfors SP, Grova C, Chowdhury R, Hedrich T, Heers M, Zelmann R, Hall JA, Lina JM, Kobayashi E, Oostendorp T, van Dam P, Oosterhof P, Linnenbank A, Coronel R, van Dessel P, de Bakker J, Rossion B, Jacques C, Witthoft N, Weiner KS, Foster BL, Miller KJ, Hermes D, Parvizi J, Grill-Spector K, Recanzone GH, Murray MM, Haynes JD, Richiardi J, Greicius M, De Lucia M, Müller KR, Formisano E, Smieskova R, Schmidt A, Bendfeldt K, Walter A, Riecher-Rössler A, Borgwardt S, Fusar-Poli P, Eliez S, Schmidt A, Sekihara K, Nagarajan SS, Schoffelen JM, Guggisberg AG, Nolte G, Balazs S, Kermanshahi K, Kiesenhofer W, Binder H, Rattay F, Antal A, Chaieb L, Paulus W, Bodis-Wollner I, Maurer K, Fein G, Camchong J, Johnstone J, Cardenas-Nicolson V, Fiederer LDJ, Lucka F, Yang S, Vorwerk J, Dümpelmann M, Cosandier-Rimélé D, Schulze-Bonhage A, Aertsen A, Speck O, Wolters CH, Ball T, Fuchs M, Wagner M, Kastner J, Tech R, Dinh C, Haueisen J, Baumgarten D, Hämäläinen MS, Lau S, Vogrin SJ, D'Souza W, Haueisen J, Cook MJ, Custo A, Van De Ville D, Vulliemoz S, Grouiller F, Michel CM, Malmivuo J, Aydin U, Vorwerk J, Küpper P, Heers M, Kugel H, Wellmer J, Kellinghaus C, Scherg M, Rampp S, Wolters C, Storti SF, Boscolo Galazzo I, Del Felice A, Pizzini FB, Arcaro C, Formaggio E, Mai R, Manganotti P, Koessler L, Vignal J, Cecchin T, Colnat-Coulbois S, Vespignani H, Ramantani G, Maillard L, Rektor I, Kuba R, Brázdil M, Chrastina J, Rektorova I, van Mierlo P, Carrette E, Strobbe G, Montes-Restrepo V, Vonck K, Vandenberghe S, Ahmed B, Brodely C, Carlson C, Kuzniecky R, Devinsky O, French J, Thesen T, Bénis D, David O, Lachaux JP, Seigneuret E, Krack P, Fraix V, Chabardès S, Bastin J, Jann K, Gee D, Kilroy E, Cannon T, Wang DJ, Hale JR, Mayhew SD, Przezdzik I, Arvanitis TN, Bagshaw AP, Plomp G, Quairiaux C, Astolfi L, Michel CM, Mayhew SD, Mullinger KJ, Bagshaw AP, Bowtell R, Francis ST, Schouten AC, Campfens SF, van der Kooij H, Koles Z, Lind J, Flor-Henry P, Wirth M, Haase CM, Villeneuve S, Vogel J, Jagust WJ, Kambeitz-Ilankovic L, Simon-Vermot L, Gesierich B, Duering M, Ewers M, Rektorova I, Krajcovicova L, Marecek R, Mikl M, Bracht T, Horn H, Strik W, Federspiel A, Schnell S, Höfle O, Stegmayer K, Wiest R, Dierks T, Müller TJ, Walther S, Surmeli T, Ertem A, Eralp E, Kos IH, Skrandies W, Flüggen S, Klein A, Britz J, Díaz Hernàndez L, Ro T, Michel CM, Lenartowicz A, Lau E, Rodriguez C, Cohen MS, Loo SK, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Giannoudas I, La Porta P, Verardo AR, Niolu C, Fernandez I, Siracusano A, Flor-Henry P, Lind J, Koles Z, Bollmann S, Ghisleni C, O'Gorman R, Poil SS, Klaver P, Michels L, Martin E, Ball J, Eich-Höchli D, Brandeis D, Salisbury DF, Murphy TK, Butera CD, Mathalon DH, Fryer SL, Kiehl KA, Calhoun VC, Pearlson GD, Roach BJ, Ford JM, McGlashan TH, Woods SW, Volpe U, Merlotti E, Vignapiano A, Montefusco V, Plescia GM, Gallo O, Romano P, Mucci A, Galderisi S, Mingoia G, Langbein K, Dietzek M, Wagner G, Smesny, Scherpiet S, Maitra R, Gaser C, Sauer H, Nenadic I, Gonzalez Andino S, Grave de Peralta Menendez R, Grave de Peralta Menendez R, Sanchez Vives M, Rebollo B, Gonzalez Andino S, Frølich L, Andersen TS, Mørup M, Belfiore P, Gargiulo P, Ramon C, Vanhatalo S, Cho JH, Vorwerk J, Wolters CH, Knösche TR, Watanabe T, Kawabata Y, Ukegawa D, Kawabata S, Adachi Y, Sekihara K, Sekihara K, Nagarajan SS, Wagner S, Aydin U, Vorwerk J, Herrmann C, Burger M, Wolters C, Lucka F, Aydin U, Vorwerk J, Burger M, Wolters C, Bauer M, Trahms L, Sander T, Faber PL, Lehmann D, Gianotti LRR, Pascual-Marqui RD, Milz P, Kochi K, Kaneko S, Yamashita S, Yana K, Kalogianni K, Vardy AN, Schouten AC, van der Helm FCT, Sorrentino A, Luria G, Aramini R, Hunold A, Funke M, Eichardt R, Haueisen J, Gómez-Aguilar F, Vázquez-Olvera S, Cordova-Fraga T, Castro-López J, Hernández-Gonzalez MA, Solorio-Meza S, Sosa-Aquino M, Bernal-Alvarado JJ, Vargas-Luna M, Vorwerk J, Magyari L, Ludewig J, Oostenveld R, Wolters CH, Vorwerk J, Engwer C, Ludewig J, Wolters C, Sato K, Nishibe T, Furuya M, Yamashiro K, Yana K, Ono T, Puthanmadam Subramaniyam N, Hyttinen J, Lau S, Güllmar D, Flemming L, Haueisen J, Sonntag H, Vorwerk J, Wolters CH, Grasedyck L, Haueisen J, Maeß B, Freitag S, Graichen U, Fiedler P, Strohmeier D, Haueisen J, Stenroos M, Hauk O, Grigutsch M, Felber M, Maess B, Herrmann B, Strobbe G, van Mierlo P, Vandenberghe S, Strobbe G, Cárdenas-Peña D, Montes-Restrepo V, van Mierlo P, Castellanos-Dominguez G, Vandenberghe S, Lanfer B, Paul-Jordanov I, Scherg M, Wolters CH, Ito Y, Sato D, Kamada K, Kobayashi T, Dalal SS, Rampp S, Willomitzer F, Arold O, Fouladi-Movahed S, Häusler G, Stefan H, Ettl S, Zhang S, Zhang Y, Li H, Kong X, Montes-Restrepo V, Strobbe G, van Mierlo P, Vandenberghe S, Wong DDE, Bidet-Caulet A, Knight RT, Crone NE, Dalal SS, Birot G, Spinelli L, Vulliémoz S, Seeck M, Michel CM, Emory H, Wells C, Mizrahi N, Vogrin SJ, Lau S, Cook MJ, Karahanoglu FI, Grouiller F, Caballero-Gaudes C, Seeck M, Vulliemoz S, Van De Ville D, Spinelli L, Megevand P, Genetti M, Schaller K, Michel C, Vulliemoz S, Seeck M, Genetti M, Tyrand R, Grouiller F, Vulliemoz S, Spinelli L, Seeck M, Schaller K, Michel CM, Grouiller F, Heinzer S, Delattre B, Lazeyras F, Spinelli L, Pittau F, Seeck M, Ratib O, Vargas M, Garibotto V, Vulliemoz S, Vogrin SJ, Bailey CA, Kean M, Warren AE, Davidson A, Seal M, Harvey AS, Archer JS, Papadopoulou M, Leite M, van Mierlo P, Vonck K, Boon P, Friston K, Marinazzo D, Ramon C, Holmes M, Koessler L, Rikir E, Gavaret M, Bartolomei F, Vignal JP, Vespignani H, Maillard L, Centeno M, Perani S, Pier K, Lemieux L, Clayden J, Clark C, Pressler R, Cross H, Carmichael DW, Spring A, Bessemer R, Pittman D, Aghakhani Y, Federico P, Pittau F, Grouiller F, Vulliémoz S, Gotman J, Badier JM, Bénar CG, Bartolomei F, Cruto C, Chauvel P, Gavaret M, Brodbeck V, van Leeuwen T, Tagliazzuchi E, Melloni L, Laufs H, Griskova-Bulanova I, Dapsys K, Klein C, Hänggi J, Jäncke L, Ehinger BV, Fischer P, Gert AL, Kaufhold L, Weber F, Marchante Fernandez M, Pipa G, König P, Sekihara K, Hiyama E, Koga R, Iannilli E, Michel CM, Bartmuss AL, Gupta N, Hummel T, Boecker R, Holz N, Buchmann AF, Blomeyer D, Plichta MM, Wolf I, Baumeister S, Meyer-Lindenberg A, Banaschewski T, Brandeis D, Laucht M, Natahara S, Ueno M, Kobayashi T, Kottlow M, Bänninger A, Koenig T, Schwab S, Koenig T, Federspiel A, Dierks T, Jann K, Natsukawa H, Kobayashi T, Tüshaus L, Koenig T, Kottlow M, Achermann P, Wilson RS, Mayhew SD, Assecondi S, Arvanitis TN, Bagshaw AP, Darque A, Rihs TA, Grouiller F, Lazeyras F, Ha-Vinh Leuchter R, Caballero C, Michel CM, Hüppi PS, Hauser TU, Hunt LT, Iannaccone R, Stämpfli P, Brandeis D, Dolan RJ, Walitza S, Brem S, Graichen U, Eichardt R, Fiedler P, Strohmeier D, Freitag S, Zanow F, Haueisen J, Lordier L, Grouiller F, Van de Ville D, Sancho Rossignol A, Cordero I, Lazeyras F, Ansermet F, Hüppi P, Schläpfer A, Rubia K, Brandeis D, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Giannoudas I, Verardo AR, La Porta P, Niolu C, Fernandez I, Siracusano A, Tamura K, Karube C, Mizuba T, Matsufuji M, Takashima S, Iramina K, Assecondi S, Ostwald D, Bagshaw AP, Marecek R, Brazdil M, Lamos M, Slavícek T, Marecek R, Jan J, Meier NM, Perrig W, Koenig T, Minami T, Noritake Y, Nakauchi S, Azuma K, Minami T, Nakauchi S, Rodriguez C, Lenartowicz A, Cohen MS, Rodriguez C, Lenartowicz A, Cohen MS, Iramina K, Kinoshita H, Tamura K, Karube C, Kaneko M, Ide J, Noguchi Y, Cohen MS, Douglas PK, Rodriguez CM, Xia HJ, Zimmerman EM, Konopka CJ, Epstein PS, Konopka LM, Giezendanner S, Fisler M, Soravia L, Andreotti J, Wiest R, Dierks T, Federspiel A, Razavi N, Federspiel A, Dierks T, Hauf M, Jann K, Kamada K, Sato D, Ito Y, Okano K, Mizutani N, Kobayashi T, Thelen A, Murray M, Pastena L, Formaggio E, Storti SF, Faralli F, Melucci M, Gagliardi R, Ricciardi L, Ruffino G, Coito A, Macku P, Tyrand R, Astolfi L, He B, Wiest R, Seeck M, Michel C, Plomp G, Vulliemoz S, Fischmeister FPS, Glaser J, Schöpf V, Bauer H, Beisteiner R, Deligianni F, Centeno M, Carmichael DW, Clayden J, Mingoia G, Langbein K, Dietzek M, Wagner G, Smesny S, Scherpiet S, Maitra R, Gaser C, Sauer H, Nenadic I, Dürschmid S, Zaehle T, Pannek H, Chang HF, Voges J, Rieger J, Knight RT, Heinze HJ, Hinrichs H, Tsatsishvili V, Cong F, Puoliväli T, Alluri V, Toiviainen P, Nandi AK, Brattico E, Ristaniemi T, Grieder M, Crinelli RM, Jann K, Federspiel A, Wirth M, Koenig T, Stein M, Wahlund LO, Dierks T, Atsumori H, Yamaguchi R, Okano Y, Sato H, Funane T, Sakamoto K, Kiguchi M, Tränkner A, Schindler S, Schmidt F, Strauß M, Trampel R, Hegerl U, Turner R, Geyer S, Schönknecht P, Kebets V, van Assche M, Goldstein R, van der Meulen M, Vuilleumier P, Richiardi J, Van De Ville D, Assal F, Wozniak-Kwasniewska A, Szekely D, Harquel S, Bougerol T, David O, Bracht T, Jones DK, Horn H, Müller TJ, Walther S, Sos P, Klirova M, Novak T, Brunovsky M, Horacek J, Bares M, Hoschl C C, Fellhauer I, Zöllner FG, Schröder J, Kong L, Essig M, Schad LR, Arrubla J, Neuner I, Hahn D, Boers F, Shah NJ, Neuner I, Arrubla J, Hahn D, Boers F, Jon Shah N, Suriya Prakash M, Sharma R, Kawaguchi H, Kobayashi T, Fiedler P, Griebel S, Biller S, Fonseca C, Vaz F, Zentner L, Zanow F, Haueisen J, Rochas V, Rihs T, Thut G, Rosenberg N, Landis T, Michel C, Moliadze V, Schmanke T, Lyzhko E, Bassüner S, Freitag C, Siniatchkin M, Thézé R, Guggisberg AG, Nahum L, Schnider A, Meier L, Friedrich H, Jann K, Landis B, Wiest R, Federspiel A, Strik W, Dierks T, Witte M, Kober SE, Neuper C, Wood G, König R, Matysiak A, Kordecki W, Sieluzycki C, Zacharias N, Heil P, Wyss C, Boers F, Arrubla J, Dammers J, Kawohl W, Neuner I, Shah NJ, Braboszcz C, Cahn RB, Levy J, Fernandez M, Delorme A, Rosas-Martinez L, Milne E, Zheng Y, Urakami Y, Kawamura K, Washizawa Y, Hiyoshi K, Cichocki A, Giroud N, Dellwo V, Meyer M, Rufener KS, Liem F, Dellwo V, Meyer M, Jones-Rounds JD, Raizada R, Staljanssens W, Strobbe G, van Mierlo P, Van Holen R, Vandenberghe S, Pefkou M, Becker R, Michel C, Hervais-Adelman A, He W, Brock J, Johnson B, Ohla K, Hitz K, Heekeren K, Obermann C, Huber T, Juckel G, Kawohl W, Gabriel D, Comte A, Henriques J, Magnin E, Grigoryeva L, Ortega JP, Haffen E, Moulin T, Pazart L, Aubry R, Kukleta M, Baris Turak B, Louvel J, Crespo-Garcia M, Cantero JL, Atienza M, Connell S, Kilborn K, Damborská A, Brázdil M, Rektor I, Kukleta M, Koberda JL, Bienkiewicz A, Koberda I, Koberda P, Moses A, Tomescu M, Rihs T, Britz J, Custo A, Grouiller F, Schneider M, Debbané M, Eliez S, Michel C, Wang GY, Kydd R, Wouldes TA, Jensen M, Russell BR, Dissanayaka N, Au T, Angwin A, O'Sullivan J, Byrne G, Silburn P, Marsh R, Mellic G, Copland D, Bänninger A, Kottlow M, Díaz Hernàndez L, Koenig T, Díaz Hernàndez L, Bänninger A, Koenig T, Hauser TU, Iannaccone R, Mathys C, Ball J, Drechsler R, Brandeis D, Walitza S, Brem S, Boeijinga PH, Pang EW, Valica T, Macdonald MJ, Oh A, Lerch JP, Anagnostou E, Di Lorenzo G, Pagani M, Monaco L, Daverio A, Verardo AR, Giannoudas I, La Porta P, Niolu C, Fernandez I, Siracusano A, Shimada T, Matsuda Y, Monkawa A, Monkawa T, Hashimoto R, Watanabe K, Kawasaki Y, Matsuda Y, Shimada T, Monkawa T, Monkawa A, Watanabe K, Kawasaki Y, Stegmayer K, Horn H, Federspiel A, Razavi N, Bracht T, Laimböck K, Strik W, Dierks T, Wiest R, Müller TJ, Walther S, Koorenhof LJ, Swithenby SJ, Martins-Mourao A, Rihs TA, Tomescu M, Song KW, Custo A, Knebel JF, Murray M, Eliez S, Michel CM, Volpe U, Merlotti E, Vignapiano A, Montefusco V, Plescia GM, Gallo O, Romano P, Mucci A, Galderisi S, Laimboeck K, Jann K, Walther S, Federspiel A, Wiest R, Strik W, Horn H. Abstracts of Presentations at the International Conference on Basic and Clinical Multimodal Imaging (BaCI), a Joint Conference of the International Society for Neuroimaging in Psychiatry (ISNIP), the International Society for Functional Source Imaging (ISFSI), the International Society for Bioelectromagnetism (ISBEM), the International Society for Brain Electromagnetic Topography (ISBET), and the EEG and Clinical Neuroscience Society (ECNS), in Geneva, Switzerland, September 5-8, 2013. Clin EEG Neurosci 2013; 44:1550059413507209. [PMID: 24368763 DOI: 10.1177/1550059413507209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- B J He
- National Institutes of Health, Bethesda, MD, USA
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Ackermann S, Azima A, Bajt S, Bödewadt J, Curbis F, Dachraoui H, Delsim-Hashemi H, Drescher M, Düsterer S, Faatz B, Felber M, Feldhaus J, Hass E, Hipp U, Honkavaara K, Ischebeck R, Khan S, Laarmann T, Lechner C, Maltezopoulos T, Miltchev V, Mittenzwey M, Rehders M, Rönsch-Schulenburg J, Rossbach J, Schlarb H, Schreiber S, Schroedter L, Schulz M, Schulz S, Tarkeshian R, Tischer M, Wacker V, Wieland M. Generation of coherent 19- and 38-nm radiation at a free-electron laser directly seeded at 38 nm. Phys Rev Lett 2013; 111:114801. [PMID: 24074093 DOI: 10.1103/physrevlett.111.114801] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Indexed: 05/24/2023]
Abstract
Initiating the gain process in a free-electron laser (FEL) from an external highly coherent source of radiation is a promising way to improve the pulse properties such as temporal coherence and synchronization performance in time-resolved pump-probe experiments at FEL facilities, but this so-called "seeding" suffers from the lack of adequate sources at short wavelengths. We report on the first successful seeding at a wavelength as short as 38.2 nm, resulting in GW-level, coherent FEL radiation pulses at this wavelength as well as significant second harmonic emission at 19.1 nm. The external seed pulses are about 1 order of magnitude shorter compared to previous experiments allowing an ultimate time resolution for the investigation of dynamic processes enabling breakthroughs in ultrafast science with FELs. The seeding pulse is the 21st harmonic of an 800-nm, 15-fs (rms) laser pulse generated in an argon medium. Methods for finding the overlap of seed pulses with electron bunches in spatial, longitudinal, and spectral dimensions are discussed and results are presented. The experiment was conducted at FLASH, the FEL user facility at DESY in Hamburg, Germany.
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Affiliation(s)
- S Ackermann
- Department of Physics, University of Hamburg, 22761 Hamburg, Germany and Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
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Löhl F, Arsov V, Felber M, Hacker K, Jalmuzna W, Lorbeer B, Ludwig F, Matthiesen KH, Schlarb H, Schmidt B, Schmüser P, Schulz S, Szewinski J, Winter A, Zemella J. Electron bunch timing with femtosecond precision in a superconducting free-electron laser. Phys Rev Lett 2010; 104:144801. [PMID: 20481941 DOI: 10.1103/physrevlett.104.144801] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2010] [Indexed: 05/06/2023]
Abstract
High-gain free-electron lasers (FELs) are capable of generating femtosecond x-ray pulses with peak brilliances many orders of magnitude higher than at other existing x-ray sources. In order to fully exploit the opportunities offered by these femtosecond light pulses in time-resolved experiments, an unprecedented synchronization accuracy is required. In this Letter, we distributed the pulse train of a mode-locked fiber laser with femtosecond stability to different locations in the linear accelerator of the soft x-ray FEL FLASH. A novel electro-optic detection scheme was applied to measure the electron bunch arrival time with an as yet unrivaled precision of 6 fs (rms). With two beam-based feedback systems we succeeded in stabilizing both the arrival time and the electron bunch compression process within two magnetic chicanes, yielding a significant reduction of the FEL pulse energy jitter.
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Affiliation(s)
- F Löhl
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany.
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21
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Enck P, Kaiser C, Felber M, Riepl RL, Klauser A, Klosterhalfen S, Otto B. Circadian variation of rectal sensitivity and gastrointestinal peptides in healthy volunteers. Neurogastroenterol Motil 2009; 21:52-8. [PMID: 18761628 DOI: 10.1111/j.1365-2982.2008.01182.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The aim of our study was to identify diurnal variation of perception of rectal distension and the release of gastroenteropancreatic hormones. In 12 healthy male volunteers (25 years, range 22-32), a rectal balloon distension was performed. Rectal perception thresholds (minimal, urge and pain) and rectal compliance were double-measured with a computer-controlled barostat at seven standardized time points during the day (from 16.00 to 14.00 hours the following day). Blood samples were taken 30 min before and after each rectal distension procedure to determine plasma levels of cholecystokinin (CCK), pancreatic polypeptide (PP) and motilin. Sensory thresholds for urge and pain varied significantly with the time of day, with higher threshold levels in the evening than in the morning hours. Bowel wall compliance showed as well-significant variance at pain threshold and was higher during daytime than in the evening or at night. In contrast to motilin, release of CCK and PP also showed a significant variation depending on daytime. Perception of rectal distension stimuli as well as compliance was independent of intake of food and peptide hormone levels, but CCK and PP levels increased with food, and PP levels decreased with rectal distension. Significant differences in the perception of rectal distension stimuli for urge and pain depending on daytime were found, but the release of gastrointestinal peptides seemed not to be involved. This circadian variation needs to be taken into account in patients and volunteer studies.
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Affiliation(s)
- P Enck
- Medical Department VI, University Hospital Tübingen, Tübingen, Germany.
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22
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Kim J, Ludwig F, Felber M, Kärtner FX. Long-term stable microwave signal extraction from mode-locked lasers. Opt Express 2007; 15:8951-8959. [PMID: 19547234 DOI: 10.1364/oe.15.008951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Long-term synchronization between two 10.225 GHz microwave signals at +10 dBm power level, locked to a 44.26 MHz repetition rate passively mode-locked fiber laser, is demonstrated using balanced optical-microwave phase detectors. The out-of-loop measurement result shows 12.8 fs relative timing jitter integrated from 10 Hz to 10 MHz. Long-term timing drift measurement shows 48 fs maximum deviation over one hour, mainly limited by drift of the out-of-loop characterization setup itself. To the best of our knowledge, this is the first time to demonstrate long-term (>1 hour) 3 mrad-level phase stability of a 10.225 GHz microwave signal extracted from a mode-locked laser.
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23
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Felber M. Closing Statements. Refugee Survey Quarterly 2004. [DOI: 10.1093/rsq/23.4.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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24
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Konecny G, Fritz M, Untch M, Lebeau A, Felber M, Lude S, Beryt M, Hepp H, Slamon D, Pegram M. HER-2/neu overexpression and in vitro chemosensitivity to CMF and FEC in primary breast cancer. Breast Cancer Res Treat 2001; 69:53-63. [PMID: 11759828 DOI: 10.1023/a:1012226006395] [Citation(s) in RCA: 15] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Available clinical and experimental data on the effect of HER-2/neu overexpression on chemosensitivity are controversial. It was the purpose of this in vitro study to define the association between HER-2/neu overexpression and the sensitivity to the chemotherapeutic drug combinations of cyclophosphamide, methotrexate and 5-fluorouracil (CMF) and 5-fluorouracil, epirubicin and cyclophosphamide (FEC) of breast cancer cells derived from 140 chemotherapy-naïve patients at the time of primary surgery. Both drug combinations were tested at six different concentrations ranging from 6.25-200% peak plasma concentration (PPC). Immunohistochemical detection of HER-2/neu overexpression was performed with the HER-2/neu antibodies, CB11, TAB250 and AO485, in the same tumor specimens. Immunoreactions were determined as negative (0/1+), weakly positive (2+) and strongly positive (3+). However, the antibodies varied in their degrees of sensitivity. Breast cancer samples with strong (3+) HER-2/neu overexpression demonstrated 90% growth inhibition (IC90) at significantly lower PPC values, using the CB11 (p = 0.048), TAB250 (p = 0.007) and AO485 (p < or =0.01) antibodies, and showed 50% growth inhibition (IC50) at significantly lower PPC values, using the CB11 antibody (p = 0.01) compared to their counterparts with lower levels of HER-2/neu expression. When analyzing the group of patients with intermediate and strong HER-2/neu overexpression (2+ and 3+), an association between HER-2/neu overexpression and increased chemosensitivity was seen with the TAB250 (p = 0.044) and AO485 (p = 0.032) antibodies, but not with the CB11 antibody (p =0.8) at the IC90 level. Differences in chemosensitivity between samples with strong HER-2/neu overexpression and those with lower levels were then analyzed separately for CMF and FEC. Both regimens achieved 90% tumor growth inhibition at lower PPC values in samples with strong HER-2/neu overexpression (3+) compared to their counterparts with lower expression levels (AO485 p = 0.011 for CMF, and p = 0.09 for FEC). Cumulative concentration-response plots of tumors responding in vitro with 90% tumor cell inhibition showed a stronger dose dependence for both CMF and FEC among tumor samples with strong HER-2/neu overexpression compared to those with lower levels of expression. In conclusion, the data show that HER-2/neu overexpression was not associated with in vitro drug resistance to CMF or FEC. In contrast, tumors with strong HER-2/neu overexpression demonstrated increased dose-dependent in vitro sensitivity to both the FEC and CMF regimens.
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Affiliation(s)
- G Konecny
- Department of Medicine, UCLA School of Medicine, 90095-1678, USA.
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25
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Konecny G, Untch M, Arboleda J, Wilson C, Kahlert S, Boettcher B, Felber M, Beryt M, Lude S, Hepp H, Slamon D, Pegram M. Her-2/neu and urokinase-type plasminogen activator and its inhibitor in breast cancer. Clin Cancer Res 2001; 7:2448-57. [PMID: 11489825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
PURPOSE Recent studies suggest that HER-2/neu specifically promotes the invasive capacity of tumor cells by up-regulating secretion of the proteolytic enzyme, urokinase-type plasminogen activator (uPA), or its inhibitor, plasminogen activator inhibitor-1 (PAI-1), in colon and gastric cancer. It was the purpose of this study to: (a) evaluate the association between HER-2/neu and uPA and PAI-1 expression in a large primary breast cancer cohort; (b) perform the first multivariate analysis, including HER-2/neu, uPA, and PAI-1 in breast cancer; and (c) define the effect of HER-2/neu overexpression on uPA and PAI-1 expression in breast cancer cells. EXPERIMENTAL DESIGN HER-2/neu, uPA, and PAI-1 were measured as continuous variables by ELISA in primary breast cancer tissue extracts from 587 patients with clinical follow-up and analyzed for correlations with clinical outcome. Furthermore, a full-length human HER-2/neu cDNA was introduced into five human breast cancer cell lines to define the effects of HER-2/neu overexpression on uPA and PAI-1 expression. In addition, we tested whether HER-2/neu antibodies could reverse any given alteration of uPA and PAI-1 levels. RESULTS Our findings indicate a weak positive association between HER-2/neu and uPA (r = 0.147; P < 0.001) and no association between HER-2/neu and PAI-1 (r = 0.07; P = 0.085). HER-2/neu overexpression (> or =400 fmol/mg) and high levels of uPA/PAI-1 (> or =5.5 ng/mg and/or > or =14 ng/mg, respectively) were significantly associated with shorter disease-free survival (DFS; P < 0.001 and P = 0.003) and metastasis-free survival (MFS; P = 0.015 and P < 0.001). Multivariate analysis revealed prognostic independence between HER-2/neu and the uPA/PAI-1 axis for DFS and MFS. Both uPA and PAI-1 had no significant discriminatory effect among HER-2/neu-positive patients for DFS. The prognostic value of HER-2/neu overexpression for MFS, however, was significantly enhanced by elevated uPA expression (P = 0.053). Stable transfection of the HER-2/neu gene into multiple human breast cancer cell lines resulted in consistent down-regulation of uPA or PAI-1 expression. In addition, anti-HER-2/neu antibodies did not significantly affect uPA or PAI-1 expression in human cancer cell lines naturally overexpressing HER-2/neu. CONCLUSIONS The present findings suggest that the invasive phenotype elicited by HER-2/neu overexpression in breast cancer is not a direct effect of uPA or PAI-1 expression. HER-2/neu and the uPA/PAI-1 axis have been shown to affect the invasive capacity of breast cancer independently. Determination of uPA can provide significant additional prognostic information for MFS in HER-2/neu-positive and -negative patients.
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Affiliation(s)
- G Konecny
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles School of Medicine, Los Angeles, CA 90095-1678, USA.
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Konecny G, Untch M, Slamon D, Beryt M, Kahlert S, Felber M, Langer E, Lude S, Hepp H, Pegram M. Drug interactions and cytotoxic effects of paclitaxel in combination with carboplatin, epirubicin, gemcitabine or vinorelbine in breast cancer cell lines and tumor samples. Breast Cancer Res Treat 2001; 67:223-33. [PMID: 11561768 DOI: 10.1023/a:1017980411398] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The purpose of this study was to analyze the drug interactions of paclitaxel (PTX) with epirubicin (EPI), carboplatin (CBDCA), gemcitabine (GEM) and vinorelbine (VIN) in human breast cancer cells and compare the cytotoxic activity of each drug combination in primary breast cancer samples. These experiments were intended to identify the most active agents in combination with PTX, and to provide a preclinical rational for future clinical investigations in breast cancer. Multiple drug effect/combination index (CI) isobologram analysis was applied to combinations of PTX with either CBDCA, EPI, GEM or VIN in MCF-7, MDA-MB-231 and SK-BR-3 human breast cancer cell lines. Drug concentrations were limited to the ranges achievable in humans in vivo, and the drugs were applied simultaneously at fixed molar ratios for each drug combination. Interactions were assessed at multiple effect levels (IC10-IC90). Additionally, the cytotoxic activity of these combinations was assessed in tumor samples of 50 primary breast cancer patients, utilizing the ATP-tumorchemosensitivity assay (ATP-TCA). Drug interactions were shown to be strongly dose-related in the human breast cancer cell lines investigated. At clinically relevant concentrations, CBDCA/PTX demonstrated synergistic (MCF-7) or additive (MDA-MB-231, SK-BR-3) interactions, and EPI/PTX showed additive (SK-BR-3, MCF-7) and antagonistic (MDA-MB-231) interactions. GEM/PTX and VIN/PTX, however, demonstrated antagonism over multiple dose effect levels at clinically relevant drug concentrations in all three cell lines tested. At plasma peak concentrations, EPI/PTX, CBDCA/PTX, GEM/PTX and VIN/PTX achieved > or = 90% tumor growth inhibition in 93, 86, 63 and 50%, respectively, of primary breast cancer samples investigated with the ATP-TCA. Cumulative dose-response plots of primary breast cancer tumor cells responding in vitro with > or = 90% growth inhibition showed a strong dose dependence for both EPI/PTX and CBDCA/PTX. In conclusion, the current data indicate favorable drug interactions for CBDCA/PTX at clinically relevant drug concentrations in breast cancer cells, and demonstrate superior in vitro cytotoxicity of EPI/PTX and CBDCA/PTX compared to GEM/PTX and VIN/PTX in primary breast cancer cultures.
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Affiliation(s)
- G Konecny
- Department of Medicine, University of California, Los Angeles School of Medicine, 90095-1678, USA.
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27
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Konecny G, Crohns C, Pegram M, Felber M, Lude S, Kurbacher C, Cree IA, Hepp H, Untch M. Correlation of drug response with the ATP tumorchemosensitivity assay in primary FIGO stage III ovarian cancer. Gynecol Oncol 2000; 77:258-63. [PMID: 10785475 DOI: 10.1006/gyno.2000.5728] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Our purpose was to: (a) study the in vitro chemosensitivity of primary epithelial ovarian cancer to drug combinations with cisplatin (CDDP), carboplatin (CBDCA), paclitaxel (PTX), epirubicin (EPI), or cyclophosphamide (CTX) utilizing the ATP tumorchemosensitivity assay (ATP-TCA); (b) correlate the test results with clinical response in patients with FIGO stage III ovarian cancer; and (c) analyze the most useful parameters for interpretation of test results. METHODS CBDCA/CTX, CBDCA/PTX, CDDP/PTX, and EPI/PTX were tested in 93 fresh human primary epithelial ovarian cancer specimens. Correlations of in vitro drug sensitivity/resistance and clinical response were performed in 38 patients with FIGO stage III disease utilizing Fisher's exact test and by comparison of progression-free (PFS) and overall survival (OS) between those testing as sensitive or resistant. A progression-free interval of more than 12 months following surgery was classified as clinical response. ATP-TCA results were analyzed using the median effective dose, area under the curve, or a defined sensitivity index. RESULTS Evaluable test results were achieved in 83 of 93 patients (89%). EPI/PTX had the highest in vitro activity (P < 0.001). In the clinical correlation, 29 of 38 patients (76%) were classified as in vitro sensitive (sensitivity index [SI] <250) and 9 patients as in vitro resistant (SI >250). The SI was superior for interpretation of test results. Patients testing as chemosensitive had a significantly longer mean PFS (28.5 vs 12.6 months, P = 0.033) and OS (46.1 vs 17.6, P = 0.03) compared to those patients predicted to be resistant. The assay demonstrated a sensitivity, specificity, and positive and negative predictive value of 95, 44, 66, and 89%, respectively (Fisher's exact test, P = 0. 007). CONCLUSION The observed in vitro efficacy of EPI/PTX in primary epithelial ovarian cancer specimens warrants further clinical evaluation. The high evaluability rate and the observed correlation with PFS and OS, within the limitations of a nonrandomized study, support the use of the ATP chemosensitivity assay in future prospective assay-directed trials.
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Affiliation(s)
- G Konecny
- Division of Hematology-Oncology, UCLA School of Medicine, Los Angeles, California 90095-1678, USA
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Felber M, Burns F, Garte S. Rare activation of ras oncogenes in radiation induced rat skin tumors. Oncol Rep 1997; 4:131-3. [DOI: 10.3892/or.4.1.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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29
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Felber M, Burns FJ, Garte SJ. DNA fingerprinting analysis of radiation-induced rat skin tumors. Cancer Biochem Biophys 1994; 14:163-70. [PMID: 7728737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
DNA fingerprinting analysis was performed on rat skin tumors induced by high linear energy transfer neon ion radiation. Most of these tumors (13/15) showed DNA-fingerprint variability between independently isolated tumors from the same animal. These changes include multiple band shifts and extra bands. Comparisons of DNA fingerprints were also made on successive biopsy samples from the same tumor. Each of 3 neon-induced tumors and 2 of 8 electron (low LET) induced tumors showed progressive loss of amplified sequences, gain of amplified sequences, deletions, band shifts, and the appearance of extra bands in progressive biopsies. These results provide evidence for LET-specific effects on genomic instability in radiation-induced rat skin tumors.
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Affiliation(s)
- M Felber
- Nelson Institute of Environmental Medicine, New York University Medical Center, New York 10016, USA
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30
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Gyuris J, Poller I, Felber M. [Spinal metastasis from ovarian granulosa cell tumor--after 23 years]. Orv Hetil 1994; 135:1701-3. [PMID: 8065749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
On admission, the 63-year-old patient suffered from spinal chord compression at the level of D. IV. vertebra. 23 years earlier she had undergone a total uterus exstirpation for ovarian tumor, with bilateral adnexectomy. The microcellular granular cell tumor potentially regarded as malignant, gave a spinal metastasis after 23 years of "dormancy". Half a year after the second spinal surgery, the growth again reached compression-size, requiring reoperation. On discussing the case, the authors also deal with the clinical signs of ovarian tumors as well as their prognosis and treatment modalities.
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Affiliation(s)
- J Gyuris
- Békés Megyei Onkormányzat Pándy Kálmán Kórház II. Ideg- és Psychiatriai Osztály, Gyula
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Felber M, Burns FJ, Garte SJ. Amplification of the c-myc oncogene in radiation-induced rat skin tumors as a function of linear energy transfer and dose. Radiat Res 1992; 131:297-301. [PMID: 1438687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The c-myc oncogene was previously shown to be amplified in large, later-stage carcinomas of the rat skin induced by 0.8-MeV electrons. In a panel of 70 tumors induced by neon ions (45 keV/microns), c-myc amplification was rare, and in contrast to the data for tumors induced by low-linear-energy transfer (LET) (0.3 keV/microns) radiation, showed no correlation with tumor size, growth period, or time, but was associated with radiation dose. The tissue specificity for c-myc amplification seen in tumors induced by electrons was not seen in tumors induced by neon ions. These results suggest that quite distinct molecular mechanisms operate even in late stages of carcinogenesis that depend on the LET of the inducing radiation. Furthermore, the results suggest that c-myc amplification observed in tumors induced by low-LET radiation is not a general property of rat skin carcinomas, but is linked mechanistically to the inducing radiation, even though it is not detectable until many months after exposure and tumor appearance.
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Affiliation(s)
- M Felber
- Institute of Environmental Medicine, New York University Medical Center, New York 10016
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Garte SJ, Burns FJ, Ashkenazi-Kimmel T, Felber M, Sawey MJ. Amplification of the c-myc oncogene during progression of radiation-induced rat skin tumors. Cancer Res 1990; 50:3073-7. [PMID: 2185880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Evaluation of a large panel of radiation-induced rat skin tumors of diverse size and histological type revealed a correlation between c-myc copy number and tumor size. Both the frequency and degree of c-myc gene amplification were increased in large compared to small carcinomas, but none of the sarcomas examined showed c-myc amplification. Serial biopsies of individual tumors exhibited similar trends of increasing c-myc copy number in later biopsies. In one regressing tumor, the c-myc gene copy number paralleled the growth rate of the tumor during growth and regression. The average time required from tumor appearance to significant gene amplification was close to the average period between tumor appearance and the onset of rapid growth. The data suggest that, rather than being a target gene for the direct early effects of ionizing radiation, c-myc functions as a late-stage progression-related oncogene in this model system.
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Affiliation(s)
- S J Garte
- New York University Medical Center, Institute of Environmental Medicine, New York 10016
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Abstract
Rat nasal squamous cell carcinomas induced by inhalation of three direct-acting alkylating agents yielded DNA containing activated oncogenes with no homology to any member of the ras family. The novel NIH 3T3 transforming oncogenes from tumors induced by beta-propiolactone and methylmethane sulfonate are distinct from each other based on restriction analysis. The gene isolated from beta-propiolactone-induced tumors is between 6 and 9 kb in size. None of the tumors induced by dimethylcarbamyl chloride contained positive DNA in the NIH 3T3 focus assay or in the nude mouse cotransfection assay. The rat nasal tumor model is apparently ideally suited for analysis of the roles of carcinogen and tissue specificity in oncogene activation, especially related to novel (non-ras) transforming oncogenes.
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Affiliation(s)
- A E Hochwalt
- Department of Environmental Medicine, New York University Medical Center, New York 10016
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Frank HA, McGann WJ, Macknicki J, Felber M. Magnetic field effects on the fluorescence of two reaction centerless mutants of Rhodopseudomonas capsulata. Biochem Biophys Res Commun 1982; 106:1310-7. [PMID: 6288044 DOI: 10.1016/0006-291x(82)91256-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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