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Tobin JG, Nowak S, Yu SW, Alonso-Mori R, Kroll T, Nordlund D, Weng TC, Sokaras D. 5f covalency from x-ray resonant Raman spectroscopy. J Phys Condens Matter 2022; 34:505601. [PMID: 36261038 DOI: 10.1088/1361-648x/ac9bbd] [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: 08/23/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
X-ray resonant Raman spectroscopy (XRRS), a variant of resonant inelastic x-ray scattering, has been used to investigate the two prototype systems, UF4and UO2. Both are U5f2and each is an example of 5f localized, ionic behavior and 5f localized, covalent behavior, respectively. From the M5XRRS measurements, the 5f band gap in each can be directly determined and, moreover, a clear and powerful sensitivity to 5f covalency emerges.
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Affiliation(s)
- J G Tobin
- University of Wisconsin-Oshkosh, Oshkosh, WI 54901, United States of America
| | - S Nowak
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America
| | - S-W Yu
- Lawrence Livermore National Laboratory, Livermore, CA 94550, United States of America
| | - R Alonso-Mori
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America
| | - T Kroll
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America
| | - D Nordlund
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America
| | - T-C Weng
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America
| | - D Sokaras
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United States of America
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Affiliation(s)
- K B Cunningham
- Dr, Division of Population and Behavioural Sciences, School of Medicine, University of St Andrews, North Haugh, St Andrews, Scotland, KY16 9TF, UK
| | - T Kroll
- Professor, UCD Centre for Interdisciplinary Research, Education and Innovation in Health Systems (UCD IRIS), UCD School of Nursing, Midwifery and Health Systems, UCD Health Sciences Centre, University College Dublin (UCD), Dublin, Ireland
| | - M Wells
- Professor, Nursing Directorate, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, UK
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Abstract
Abstract
Background
In many developed countries, homelessness remains an intractable challenge for intersectoral policies. People who are homeless struggle with a myriad of problems. They frequently experience stigmatisation and social marginalisation. Physical and mental health may be severely compromised, and it could be challenging to retain a sense of personal agency.
Objectives.
To co-design a personal and organisational development training course, in collaboration with clients and staff of a homeless service provider. To ensure that homeless individuals develop strategies and supports to help them navigate complex life circumstances. 6 three-hour workshops, informed by design-thinking. Each workshop session was co-designed (2 clients of a homeless charity, one staff member of staff, and two academics) in Ireland. Workshops followed the design cycle, starting with empathy exercises, then moved to define specific life challenges related to homelessness. Solution-focused ideation sessions followed. The team proceeded then to build a testable 'prototype'.
Results
The team jointly developed a high degree of creative confidence and shared responsibility for different sessions. The team developed a 'peer-support programme' as a tangible output. Academic team members gained deep insights into the lived experience of homelessness; client members deployed skills and experiences and gained renewed confidence in their abilities. The homeless charity proceeds with testing the 'peer-support' programme prototype.
Conclusions
We expect the Access and Life-Long learning programme at the university will offer the programme as a credit-bearing course. Its acceptability and usability will be tested.
Key messages
Homeless individuals can be meaningfully involved in designing services that empower them to navigate complex systems. Design thinking yields personal and organisational benefits.
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Affiliation(s)
- T Kroll
- School of Nursing, Midwifery and Health Systems, University College Dublin, Dublin, Ireland
| | - K Frazer
- School of Nursing, Midwifery and Health Systems, University College Dublin, Dublin, Ireland
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Donnelly S, Kroll T, Mannan H, DIX C, Wilson AG. PARE0033 I’M HERE BUT I’M NOT: A PHOTOVOICE STUDY OF THE LIVED EXPERIENCE OF SELF-MANAGING RHEUMATOID ARTHRITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4198] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Rheumatoid arthritis (RA) is a widespread chronic disease affecting about 1% of the population in the West. It is characterised by pain, fatigue and inflammation that can flare-up without warning. This makes the condition difficult to predict and manage. Bury (1982) introduced the concept of chronic illness as a disruptive experience to one’s self-identity. This is often an invisible part of managing the illness and taken for granted by others, such as family members, friends and health care professionals. Thus, there is a need to raise awareness of the patients’ lived experiences of self-managing this long-term chronic illness.Objectives:We aimed to collaborate with people with RA to (i) record and reflect the community’s strengths and concerns; (ii) raise awareness of the lived experience of self-managing RA (iii) spark a dialogue among key stakeholders around the self-management of RA.Methods:A purposeful sample of people with RA (n=12) was recruited. An innovative qualitative methodology, Photovoice, was used (Wang & Burris, 1997). A series of small group workshops took place. Participants were provided with cameras and appropriate training. They were asked to take photographs of the“challenges and solutions to living with RA” over approximately two weeks. Semi-structured interviews were conducted incorporating photo elicitation. As a group, the participants, a visual artist and researcher co-created a photo exhibition for the public.Results:Participants selected 32 photographs for the exhibition. They carried out a thematic analysis of the photos identifying four themes:•I’m Here but I’m Not– this theme reflected feelings of alienation and social isolation.•Medicine in all its forms –this theme captured attitudes towards medication and devices, as well as the creative ways people coped with RA.•Visible illness– this concerned the recognition of RA. It captures the experience of RA as a “contested illness” and the challenge of gaining medical and cultural legitimacy.•Mind yourself –this theme highlighted the value of self-care, often closely connected with the natural world and engagement with social activities.Exhibitions were held at a community arts centre and a large central hospital in Dublin city. A plain language report was also collaboratively produced.Conclusion:This study shows how participatory methods can be used to explore the hidden experience of living with an invisible illness. This research design enabled participants to use photographs to reflect on their experiences and the meaning they intended to convey, thereby increasing trustworthiness of the findings through individual and group member checking. This approach extends beyond traditional written and verbal responses to share the worldview of participants. It demonstrates how to work with patients to create opportunities to improve awareness and spark dialogue among those who play a role in supporting the self-management of chronic illness. The integration of creative arts and participatory methods can have a positive impact for those involved in research and can enhance public engagement with research.References:[1]Bury, Michael (1982) Chronic Illness as Biographical Disruption. Sociology of Health & Illness. 4. 167-82.[2]Wang, C., & Burris, M. A. (1997). Photovoice: Concept, Methodology, and Use for Participatory Needs Assessment.Health Education & Behavior,24(3), 369–387.Acknowledgments:Funding is awarded from the UCD Wellcome Trust Institutional Strategic Support Fund as part of a Medical Humanities and Social Science Collaboration Scheme (ref 204844/Z/16/Z).As part of a Patient and Public Involvement (PPI) strand, a Research Advisory Group composed of people living with RA was supported the design and execution of this project.Disclosure of Interests:None declared
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Frazer K, Paul G, Kroll T. Learning from Nightingale’s engagement with complex systems: 21st-century public health issues of homelessness and achieving Sustainable Development Goals. Perspect Public Health 2020; 140:139-140. [DOI: 10.1177/1757913920914653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- K Frazer
- School of Nursing, Midwifery and Health Systems, University College Dublin, Dublin 4, Ireland
| | - G Paul
- School of Nursing, Midwifery and Health Systems, University College Dublin, Dublin, Ireland
| | - T Kroll
- School of Nursing, Midwifery and Health Systems, University College Dublin, Dublin, Ireland
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Nowak SH, Armenta R, Schwartz CP, Gallo A, Abraham B, Garcia-Esparza AT, Biasin E, Prado A, Maciel A, Zhang D, Day D, Christensen S, Kroll T, Alonso-Mori R, Nordlund D, Weng TC, Sokaras D. A versatile Johansson-type tender x-ray emission spectrometer. Rev Sci Instrum 2020; 91:033101. [PMID: 32259983 DOI: 10.1063/1.5121853] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 02/13/2020] [Indexed: 05/23/2023]
Abstract
We present a high energy resolution x-ray spectrometer for the tender x-ray regime (1.6-5.0 keV) that was designed and operated at Stanford Synchrotron Radiation Lightsource. The instrument is developed on a Rowland geometry (500 mm of radius) using cylindrically bent Johansson analyzers and a position sensitive detector. By placing the sample inside the Rowland circle, the spectrometer operates in an energy-dispersive mode with a subnatural line-width energy resolution (∼0.32 eV at 2400 eV), even when an extended incident x-ray beam is used across a wide range of diffraction angles (∼30° to 65°). The spectrometer is enclosed in a vacuum chamber, and a sample chamber with independent ambient conditions is introduced to enable a versatile and fast-access sample environment (e.g., solid/gas/liquid samples, in situ cells, and radioactive materials). The design, capabilities, and performance are presented and discussed.
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Affiliation(s)
- S H Nowak
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - R Armenta
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - C P Schwartz
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - A Gallo
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - B Abraham
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - A T Garcia-Esparza
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - E Biasin
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - A Prado
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - A Maciel
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - D Zhang
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - D Day
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - S Christensen
- National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, USA
| | - T Kroll
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - R Alonso-Mori
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - D Nordlund
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - T-C Weng
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
| | - D Sokaras
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA
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Alhusein N, Killick K, Macaden L, Smith A, Stoddart K, Taylor A, Kroll T, Watson MC. "We're really not ready for this": A qualitative exploration of community pharmacy personnel's perspectives on the pharmaceutical care of older people with sensory impairment. Disabil Health J 2018; 12:242-248. [PMID: 30392961 PMCID: PMC6436755 DOI: 10.1016/j.dhjo.2018.10.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 10/15/2018] [Accepted: 10/22/2018] [Indexed: 12/27/2022]
Abstract
Background In most developed countries there is an increasing ageing population living in the community with long-term conditions and sensory impairment (sight; hearing; dual impairment). Community pharmacy personnel are key providers of pharmaceutical care to this patient population. Objective This study explored community pharmacy personnel's experiences with providing pharmaceutical care for older people with sensory impairment. Methods Semi-structured telephone interviews were conducted with community pharmacy personnel across Scotland between 2015 and 2016. Results Thirty interviews were completed with community pharmacists (n = 17) and other pharmacy personnel (n = 13). Two overarching themes emerged: safety and communication. Interviewees reported patients' reluctance to disclose their impairment “patients are very good at hiding it” and had considerable safety concerns “it's a fear that they're going to take too much … accidentally taking the same medicine twice”. Difficulties in communication were cited “no matter what you do or how you label things, leaflets and telling people, things can go wrong”. Additionally, interviewees identified training needs to increase their disability awareness and to identify strategies to provide safe and reliable pharmaceutical care to this vulnerable group “We don't specifically have anything in place to deal with anyone with impairments of that kind”. Conclusions This is the first in-depth exploration of providing pharmaceutical care to older people with sensory impairment from the perspective of community pharmacy personnel. Strategies are needed to encourage older people to disclose their sensory impairment. Education and training are also needed to optimise the provision of pharmaceutical care to this vulnerable population.
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Affiliation(s)
- N Alhusein
- Department of Pharmacy and Pharmacology, University of Bath, Bath, BA27AY, England, UK.
| | - K Killick
- NMAHP Research Unit, Unit 13 Scion House, University of Stirling Innovation Park, University of Stirling, Stirling, Scotland, FK9 4NF, UK.
| | - L Macaden
- Department of Nursing, University of the Highlands & Islands, Centre for Health Science, Old Perth Road, Inverness, IV2 3JH, Scotland, UK.
| | - A Smith
- Department of Nursing, University of the Highlands & Islands, Centre for Health Science, Old Perth Road, Inverness, IV2 3JH, Scotland, UK.
| | - K Stoddart
- Faculty of Health Sciences and Sport, University of Stirling, Stirling, FK9 4LA, Scotland, UK.
| | - A Taylor
- Department of Pharmacy and Pharmacology, University of Bath, Bath, BA27AY, England, UK.
| | - T Kroll
- Midwifery and Health Systems, University College Dublin, Belfield, Dublin 4, Ireland.
| | - M C Watson
- Department of Pharmacy and Pharmacology, University of Bath, Bath, BA27AY, England, UK.
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Alonso-Mori R, Asa K, Bergmann U, Brewster AS, Chatterjee R, Cooper JK, Frei HM, Fuller FD, Goggins E, Gul S, Fukuzawa H, Iablonskyi D, Ibrahim M, Katayama T, Kroll T, Kumagai Y, McClure BA, Messinger J, Motomura K, Nagaya K, Nishiyama T, Saracini C, Sato Y, Sauter NK, Sokaras D, Takanashi T, Togashi T, Ueda K, Weare WW, Weng TC, Yabashi M, Yachandra VK, Young ID, Zouni A, Kern JF, Yano J. Towards characterization of photo-excited electron transfer and catalysis in natural and artificial systems using XFELs. Faraday Discuss 2018; 194:621-638. [PMID: 27711803 DOI: 10.1039/c6fd00084c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ultra-bright femtosecond X-ray pulses provided by X-ray Free Electron Lasers (XFELs) open capabilities for studying the structure and dynamics of a wide variety of biological and inorganic systems beyond what is possible at synchrotron sources. Although the structure and chemistry at the catalytic sites have been studied intensively in both biological and inorganic systems, a full understanding of the atomic-scale chemistry requires new approaches beyond the steady state X-ray crystallography and X-ray spectroscopy at cryogenic temperatures. Following the dynamic changes in the geometric and electronic structure at ambient conditions, while overcoming X-ray damage to the redox active catalytic center, is key for deriving reaction mechanisms. Such studies become possible by using the intense and ultra-short femtosecond X-ray pulses from an XFEL, where sample is probed before it is damaged. We have developed methodology for simultaneously collecting X-ray diffraction data and X-ray emission spectra, using an energy dispersive spectrometer, at ambient conditions, and used this approach to study the room temperature structure and intermediate states of the photosynthetic water oxidizing metallo-protein, photosystem II. Moreover, we have also used this setup to simultaneously collect the X-ray emission spectra from multiple metals to follow the ultrafast dynamics of light-induced charge transfer between multiple metal sites. A Mn-Ti containing system was studied at an XFEL to demonstrate the efficacy and potential of this method.
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Affiliation(s)
- R Alonso-Mori
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - K Asa
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan
| | - U Bergmann
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - A S Brewster
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - R Chatterjee
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - J K Cooper
- Joint Center for Artificial Photosynthesis (JCAP), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA
| | - H M Frei
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - F D Fuller
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - E Goggins
- Dept. of Chemistry, North Carolina State University, 2620 Yarborough Rd., Raleigh, NC 27695-8204, USA
| | - S Gul
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - H Fukuzawa
- IMRAM, Tohoku U., Sendai 980-8577, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | | | - M Ibrahim
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
| | - T Katayama
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8/SACLA, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - T Kroll
- Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Y Kumagai
- IMRAM, Tohoku U., Sendai 980-8577, Japan
| | - B A McClure
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - J Messinger
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - K Motomura
- IMRAM, Tohoku U., Sendai 980-8577, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | - K Nagaya
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | - T Nishiyama
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan
| | - C Saracini
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - Y Sato
- Department of Physics, Graduate School of Science, Kyoto U., Kyoto, 606-8502, Japan
| | - N K Sauter
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - D Sokaras
- Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - T Togashi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8/SACLA, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - K Ueda
- IMRAM, Tohoku U., Sendai 980-8577, Japan and RIKEN SPring-8 Center, Kouto, Sayo, Hyogo 679-5148, Japan
| | - W W Weare
- Dept. of Chemistry, North Carolina State University, 2620 Yarborough Rd., Raleigh, NC 27695-8204, USA
| | - T-C Weng
- Center for High Pressure Science & Technology Advanced Research, Shanghai, China
| | - M Yabashi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8/SACLA, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - V K Yachandra
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - I D Young
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - A Zouni
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany
| | - J F Kern
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA and Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA.
| | - J Yano
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA. and Joint Center for Artificial Photosynthesis (JCAP), Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA and IMRAM, Tohoku U., Sendai 980-8577, Japan
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Cunningham KB, Kroll T, Wells M. Development of the cancer-related loneliness assessment tool: Using the findings of a qualitative analysis to generate questionnaire items. Eur J Cancer Care (Engl) 2017; 27:e12769. [PMID: 28913913 DOI: 10.1111/ecc.12769] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2017] [Indexed: 11/26/2022]
Abstract
The aim of this research was to develop a tool to identify and assess the qualities of cancer-related loneliness in adult cancer survivors who have completed treatment. In addition to reporting the development of the tool, we explicate the process of using the findings of a qualitative analysis to generate questionnaire items, as currently little guidance exists on this topic. The findings of our qualitative research exploring the experience of loneliness in adult cancer survivors who had completed treatment, together with the findings of our concept analysis of loneliness, were used to develop an assessment tool for cancer-related loneliness following treatment completion. Cognitive testing was undertaken to assess fidelity of comprehension and feasibility in administration. The Cancer-Related Loneliness Assessment Tool is a 10-item self-report questionnaire capturing the essential elements of cancer-related loneliness following treatment completion. Experts believed the questionnaire to be face-valid and usable in clinical practice, and preliminary cognitive testing indicated that the items generate the information intended and individuals have little trouble completing the tool. Following further development work, the tool could be employed to identify cancer-related loneliness following treatment completion. It could also aid with the development/adaptation and evaluation of person-centred interventions to address such loneliness.
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Affiliation(s)
| | - T Kroll
- School of Nursing, Midwifery and Health Systems, Health Sciences Centre, University College Dublin, Belfield, Dublin, Ireland
| | - M Wells
- NMAHP Research Unit, University of Stirling, Stirling, UK
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Oskamp A, Wedekind F, Kroll T, Elmenhorst D, Bauer A. Neurotransmitter receptor availability in the rat brain is constant in a 24 hour-period. Chronobiol Int 2017; 34:866-875. [PMID: 28548869 DOI: 10.1080/07420528.2017.1325370] [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] [Indexed: 10/19/2022]
Abstract
Wakefulness and sleep are fundamental characteristics of the brain. We, therefore, hypothesized that transmitter systems contribute to their regulation and will exhibit circadian alterations. We assessed the concentration of various neurotransmitter receptors and transporters including adenosinergic (A1AR, A2AAR, and ENT1), dopaminergic (D1R, D2R, and DAT), and serotonergic (5-HT2AR) target proteins. Adult male Sprague Dawley rats were used and maintained in a 12 h light: 12 h dark cycle (lights on from 07:00 h to 19:00 h). We measured receptor and transporter concentrations in different brain regions, including caudate putamen, basal forebrain, and cortex in 4 hour-intervals over a 24 hour-period using quantitative in vitro autoradiography. Investigated receptors and transporters showed no fluctuations in any of the analyzed regions using one-way ANOVA. Only in the horizontal diagonal band of Broca, the difference of A1AR concentration between light and dark phases (t-test) as well as the cosinor analysis of the 24 hour-course were significant, suggesting that this region underlies receptor fluctuations. Our findings suggest that the availability of the investigated neurotransmitter receptors and transporters does not undergo changes in a 24 hour-period. While there are reports on changes in adenosine and dopamine receptors during sleep deprivation, we found no changes in the investigated adenosine, dopamine, and serotonin receptors during regular and undisturbed day-night cycles.
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Affiliation(s)
- A Oskamp
- a Institute for Neuroscience and Medicine (INM-2) , Forschungszentrum Jülich , Jülich , Germany
| | - F Wedekind
- a Institute for Neuroscience and Medicine (INM-2) , Forschungszentrum Jülich , Jülich , Germany
| | - T Kroll
- a Institute for Neuroscience and Medicine (INM-2) , Forschungszentrum Jülich , Jülich , Germany
| | - D Elmenhorst
- a Institute for Neuroscience and Medicine (INM-2) , Forschungszentrum Jülich , Jülich , Germany.,b Psychiatry and Psychotherapy, Medical Psychology , Rheinische Friedrich-Wilhelms-University Bonn , Bonn , Germany
| | - A Bauer
- a Institute for Neuroscience and Medicine (INM-2) , Forschungszentrum Jülich , Jülich , Germany.,c Neurological Department , Heinrich-Heine-University Düsseldorf , Düsseldorf , Germany
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Fulton RL, Kroll T, McMurdo MET, Molloy GJ, Witham MD. 104INTERVENTIONS TO ENHANCE MEDICATION ADHERENCE IN OLDER HEART FAILURE PATIENTS - A SYSTEMATIC REVIEW. Age Ageing 2017. [DOI: 10.1093/ageing/afx059.104] [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: 11/12/2022] Open
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Laskowski S, Nabbi-Schroeter D, Wedekind F, Kroll T, Bauer A, Elmenhorst D. 0020 SHORT TERM SLEEP DEPRIVATION VERSUS CHRONIC CAFFEINE CONSUMPTION: IMPACT ON THE ADENOSINE A2A RECEPTOR IN THE RAT BRAIN. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kähling C, Langguth T, Roller F, Kroll T, Krombach G, Knitschke M, Streckbein P, Howaldt H, Wilbrand JF. A retrospective analysis of preoperative staging modalities for oral squamous cell carcinoma. J Craniomaxillofac Surg 2016; 44:1952-1956. [DOI: 10.1016/j.jcms.2016.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 08/04/2016] [Accepted: 09/19/2016] [Indexed: 10/21/2022] Open
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Sibbritt D, Lui C, Kroll T, Adams J. Prevalence of Glucosamine and Omega-3 Fatty Acid Use and Characteristics of Users among Mid-Age Women: Analysis of a Nationally Representative Sample of 10,638 Women. J Nutr Health Aging 2016; 20:637-44. [PMID: 27273353 DOI: 10.1007/s12603-016-0721-2] [Citation(s) in RCA: 9] [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: 12/14/2022]
Abstract
BACKGROUND There has been a dramatic increase in the use of dietary supplements over the last few decades and both omega-3 fatty acids and glucosamine are two of the best-selling dietary supplements in many countries. An understanding of omega-3 fatty acids and glucosamine consumption is of significance to health care providers and for future health promotion activities. METHODS This research involved analysis of data collected from a nationally-representative sample of Australian women as part of the Australian Longitudinal Study on Women's Health (ALSWH). Participants' use of omega-3 fatty acids (FA), glucosamine, their demographics, health status and health care utilisation were measured. Analysis included logistic regression modelling. RESULTS Of the 10,638 women in the study, 26.8% reported use of omega-3 FA and 15.9% glucosamine. Women with osteoarthritis (OR=2.529; 95% CI: 2.190, 2.921), other arthritis (OR= 1.618; 95% CI: 1.375, 1.905), and joint pain (OR= 2.699; 95% CI: 2.305, 3.160) were more likely to use glucosamine (all p<0.001). In contrast, those with diabetes (OR= 0.471; 95% CI: 0.343, 0.646) or depression (OR= 0.764; 95% CI: 0.657, 0.887) were less likely to use glucosamine (both p<0.001). Women with osteoarthritis (OR=1.481; 95% CI: 1.297, 1.691) and joint pain (OR= 1.456; 95% CI: 1.306, 1.622) were more likely to use omega-3 FA (all p<0.001). CONCLUSIONS Substantial prevalence rates for use of glucosamine and omega-3 FA amongst mid-aged women highlights the need for health practitioners and policymakers to be mindful of the possible significant role of such supplement use as part of patient health-seeking behaviours.
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Affiliation(s)
- D Sibbritt
- Professor Jon Adams, Faculty of Health, University of Technology Sydney, Level 7, Building 10, 235 Jones Street, Broadway NSW 2007, Australia. Phone: +61 2 95144821,
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Wuerdemann N, Sharma SJ, Kroll T, Streckbein P, Dreyer T, Gattenlöhner S, Wittekindt C, Klußmann JP. [Pre-auricular mass in a 38-year-old patient]. Laryngorhinootologie 2015; 94:843-5. [PMID: 26468671 DOI: 10.1055/s-0035-1559691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- N Wuerdemann
- Justus-Liebig-Universität Gießen, Klinik für Hals-Nasen-Ohrenheilkunde, Kopf-Halschirurgie und plastische Operationen des Universitätsklinikums Gießen & Marburg, Standort Gießen, Gießen, Germany
| | - S J Sharma
- Justus-Liebig-Universität Gießen, Klinik für Hals-Nasen-Ohrenheilkunde, Kopf-Halschirurgie und plastische Operationen des Universitätsklinikums Gießen & Marburg, Standort Gießen, Gießen, Germany
| | - T Kroll
- Justus-Liebig-Universität Gießen, Klinik für Hals-Nasen-Ohrenheilkunde, Kopf-Halschirurgie und plastische Operationen des Universitätsklinikums Gießen & Marburg, Standort Gießen, Gießen, Germany
| | - P Streckbein
- Universitätsklinikum Giessen, Klinik für Mund-Kiefer-Gesichtschirurgie, Giessen, Germany
| | - T Dreyer
- Universitätsklinikum Giessen, Institut für Pathologie, Giessen, Germany
| | - S Gattenlöhner
- Universitätsklinikum Giessen, Institut für Pathologie, Giessen, Germany
| | - C Wittekindt
- Justus-Liebig-Universität Gießen, Klinik für Hals-Nasen-Ohrenheilkunde, Kopf-Halschirurgie und plastische Operationen des Universitätsklinikums Gießen & Marburg, Standort Gießen, Gießen, Germany
| | - J-P Klußmann
- Justus-Liebig-Universität Gießen, Klinik für Hals-Nasen-Ohrenheilkunde, Kopf-Halschirurgie und plastische Operationen des Universitätsklinikums Gießen & Marburg, Standort Gießen, Gießen, Germany
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Sharma SJ, Kreisel M, Holler C, Kroll T, Gamerdinger U, Gattenloehner S, Klussmann JP, Wittekindt C. Compound lesion of a basal cell carcinoma and a malignant melanoma: is there a common genetic origin? Eur Arch Otorhinolaryngol 2014; 272:505-9. [PMID: 25297533 DOI: 10.1007/s00405-014-3318-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 09/29/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Shachi Jenny Sharma
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Giessen, Germany, Klinikstrasse 33, 35392, Giessen, Germany,
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Chakraborty S, Pramanik UD, Aumann T, Beceiro S, Boretzky K, Caesar C, Carlson B, Catford WN, Chatterjee S, Chartier M., Cortina-Gil D, Angelis G, Gonzalez-Diaz D, Emling H, Fernandez PD, Fraile LM, Ershova O, Geissel H, Heil M, Jonson B, Kelic A, Johansson H, Kruecken R, Kroll T, Kurcewicz J, Langer C, Bleis TL, Leifels Y, Munzenberg G, Marganiec J, Nociforo C, Najafi A, Panin V, Paschalis S, Pietri S, Plag R, Rahaman A, Reifarth R, Ricciardi V, Rossi D, Ray J, Simon H, Scheidenberger C, Typel S, Taylor J, Togano Y, Volkov V, Weick H, Wagner A, Wamers F, Weigand M, Winfield JS, Yakorev D, Zoric M. Ground-state configuration of neutron-rich Aluminum isotopes through Coulomb Breakup. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146602019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rahaman A, Datta Pramanik U, Aumann T, Beceiro S, Boretzky K, Caesar C, Carlson B, Catford W, Chakraborty S, Chatterjee S, Chartier M, Angelis G, Cortina-Gil D, Gonzalez-Diaz D, Emling H, Diaz Fernandez P, Fraile L, Ershova O, Geissel H, Heil M, Jonson B, Kelic A, Johansson H, Kruecken R, Kroll T, Kurcewicz J, Langer C, Bleis T, Leifels Y, Munzenberg G, Marganiec J, Nociforo C, Najafi A, Panin V, Paschalis S, Pietri S, Plag R, Reifarth R, Ricciardi V, Rossi D, Ray J, Simon H, Scheidenberge C, Typel S, Taylor J, Togano Y, Volkov V, Weick H, Wagner A, Wamers F, Weigand M, Winfield J, Yakorev D, Zoric M. Study of Ground State Wave-function of the Neutron-rich29,30Na Isotopes through Coulomb Breakup. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146602087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Baschant U, Koenen M, Culemann S, Schauer S, Ahmad M, Wittig-Blaich S, Knoll J, Kroll T, Krönke G, Dudeck A, Rauner M, Seibel M, Ploubidou A, Hofbauer L, Zhou H, Tuckermann J. Novel Mechanisms of the glucocorticoid receptor in inflammatory bone disease and bone loss. Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gross J, Kroll T, Morris J. Accessibility of fitness centres for people with disabilities in a region in North East Scotland. Public Health 2013; 127:782-4. [PMID: 23867100 DOI: 10.1016/j.puhe.2013.04.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 02/25/2013] [Accepted: 04/24/2013] [Indexed: 10/26/2022]
Affiliation(s)
- J Gross
- Washington University School of Medicine, Program in Occupational Therapy, St Louis, MO, USA
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Sharma SJ, Linke JJ, Kroll T, Klußmann JP, Guntinas-Lichius O, Wittekindt C. [Current practice of tumour endoscopy in German ENT-clinics]. Laryngorhinootologie 2013; 92:166-9. [PMID: 23364862 DOI: 10.1055/s-0032-1331759] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Second primary carcinomas (SPC) essentially influence therapy and the outcome in head and neck cancer. This study presents the current status of tumour endoscopy in German ENT-clinics. MATERIAL AND METHODS A standardised questionnaire regarding indication, time of event, examined anatomical region and technique of tumour endoscopy was compiled, sent to all German ENT-clinics (n=159) and subsequently analysed. RESULTS In 94-100% of the clinics, tumour endoscopy is being conducted when primary carcinoma lies within oral cavity, pharynx, larynx or is a CUP-syndrome. In 80%, 2-stage surgical procedure is preferred. Nasal cavity and tracheobronchial system (47%, 74%) are often not included in the examination. When primary cancer is seen, in 7% of the clinics a standardised biopsy of unsuspicious anatomic areas is conducted. In CUP-syndrome, unsuspicious surfaces within the pharynx do not undergo routine biopsy in 10-20% of the clinics. In tracheobronchoscopy (63.0%) and esophagoscopy (93.3%) rigid scopes are mainly used. 65% of the clinics conduct endoscopy as follow-up care. CONCLUSION Practice of tumour endoscopy in German ENT-clinics is widespread but does not follow standardised mechanisms. Current international literature shows that there is no common consensus on value and techniques of tumour endoscopy, however, due to highly developed radiological diagnostics, risks of rigid endoscopies and unknown incidence of second primary tumours it is discussed more and more negative. To establish future guidelines, controlled studies or analysis of large populations seem to be necessary.
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Affiliation(s)
- S J Sharma
- Department of Otolaryngology/Head & Neck Surgery, Justus-Liebig-University Giessen, University Hospital Giessen and Marburg, Campus Giessen, Giessen.
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Habets L, Körber W, Frenken B, Danaei M, Kusche M, Peisker U, Kroll T, Pachmann K. Abstract P1-07-16: Liver derived epithelial cells as source of false positive circulating tumor cells in early breast cancer. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p1-07-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The MAINTRAC technique as introduced by our coworkers from Jena (RBC lysis, fluorometric detection and analysis on Olympius ScanR) detects more circulating epithelial cells than techniques using enrichment. Also cells with a low EPCAM expression are detected and not only the typical cells with bright expression found after immunomagnetic enrichment. The relative cheapness and reproducibility allows frequent monitoring during and after therapy Using 3 colour detection (EPCAMfitc, DAPI, Vimentin PE) living and dead circulating epithelial cells in EMT, or cells in EMT with stemcell markers (EPCAMfitc, Vimentin-PE, CD44PacBlue) can be detected. In early breast cancer (n = 135) cells can be found in 60% of patients and in 40% higher cell counts (>100 ml are detectable. A control population(n = 100) showed low numbers in 98% (e.g (<100 CECin 1 ml blood). Expression of the mesenchymal marker (vimentin) ranges between 10 and 40% with different expression. CD44 shows also a wide range of expression. Two main cell types can be distinguished: type 1 shows generalized but weaker expression patterns and a second type with very bright dotted expression. The clinical relevance of these subsets is not known and their behavior under therapy has not been analysed in depth yet. In advanced breast cancers high cell counts were detectable in most patients with a less agressive disease course. In the rapidly progressing unfavorable subtypes (TN and Her2+. HRneg) less or none cells were found. During crossvalidation in non cancer patients we found high cell numbers in several forms of liver affections (n = 108). The expression patterns of markers on these cells were not differing from those in cancer patients. So this same cell type merging EMT, stemcell an hypoxic stress markers is detectable in advanced and early breast cancer (n = 40) and in benign disease. These cells disappear or decrease after response to chemo or anti-hormonal therapy in cancer or antioxidant therapy in NAFLD. We believe that the evasion of these cells is driven by the same force in cancer as in non cancer conditions. We suggest that this are the wellknown hypoxic and hyperacidic conditions causing epithelial mesenchymal transition. Cancer cell hijack this functions occurring normally under these conditions to survive and to facilitate evasion. More comprehensive analysis (four colour analysis on the AMNIS Flowsight) is needed and should show differences in expression patterns of liver derived epithelial cells (LDEC) and real tumor derived epithelial cells (TDEC). Further clarification of these phenomena should give new insights of the biological events in early disease and the possibilities and reliability of “fluid biopsy”.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P1-07-16.
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Affiliation(s)
- L Habets
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
| | - W Körber
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
| | - B Frenken
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
| | - M Danaei
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
| | - M Kusche
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
| | - U Peisker
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
| | - T Kroll
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
| | - K Pachmann
- Metares.e.V, Aachen, NRW, Germany; Brustzentrum Aachen Kreis Heinsberg, Aachen, NRW, Germany; Medizinische Universitätsklinik Jena, Thueringen, Germany
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Abstract
Work disability is a major problem for people with arthritis. The INTO WORK Personal Development (IWPD) programme aims to prevent work disability by addressing the internal and external barriers faced by people with arthritis seeking to fulfil their employment potential. The effectiveness of the programme was examined in a pretest-post-test study with an intervention group (n = 37) and a comparison control group (n = 42). Data were collected through self-administered questionnaires and focus groups. Significant decreases on anxiety (p = .0002), depression (p = .009) and negative mood (p = .029), and significant improvements on positive mood (p = .011), self-esteem (p = .002) and satisfaction with life (p = .010) were found for the intervention group only. The IWPD programme appears to promote self-determination, psychological well-being and strategies for overcoming perceived barriers to employment among people with arthritis.
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Affiliation(s)
- J Barlow
- Psychosocial Rheumatology Research Centre, School of Health and Social Sciences, Coventry University, UK
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Kroll T, Kraus R, Schönfelder R, Aristov VY, Molodtsova OV, Hoffmann P, Knupfer M. Transition metal phthalocyanines: Insight into the electronic structure from soft x-ray spectroscopy. J Chem Phys 2012; 137:054306. [DOI: 10.1063/1.4738754] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kroll T, Finkensieper M, Hauk H, Guntinas-Lichius O, Wittekindt C. [Sialendoscopy--learning curve and nation-wide survey in German ENT-departments]. Laryngorhinootologie 2012; 91:561-5. [PMID: 22773401 DOI: 10.1055/s-0032-1314880] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Sialendoscopy is an established, minimal-invasive technique to diagnose and treat obstructive diseases of major salivary glands. Knowledge on learning curve and distribution in Germany is limited. MATERIAL UND METHODS: An 11 item questionnaire on Sialendoscopy was sent to all 159 German ent-hospitals. To determine the learning curve, all patients that underwent sialendoscopy during a 1-year-period after invention of sialendoscopy in our department were prospectively followed and evaluated. RESULTS Sialendoscopy is currently performed in a minority (24%) of ent-departments in Germany. Denial was justified by technical problems, a lack of cost-benefit and small number of patients in descending order. A significant reduction of intervention time (61.0 ± 32.7 min to 43.2 ± 33.6 min, p=0.013) and less frequent aborted operations were noted after comparison of the first vs. the second half amount of interventions as indicators of a learning curve. Complications were not found to be significantly raised in the first half of interventions. CONCLUSION The fact that sialendoscopy is provided in only a minority of ent-departments will in the future most likely be overcome by technical improvements. A learning curve has to be anticipated.
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Affiliation(s)
- T Kroll
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf-Halschirurgie und plastische Operationen des Universitätsklinikums Giessen & Marburg, Standort Giessen, Justus-Liebig-Universität Giessen, Giessen, Germany.
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Habets L, Örber W, Frenken B, El Ghali I, Danaei M, Kusche M, Peisker U, Pachmann K, Kroll T. 272 Circulating Cells in Epithelial Mesenchymal Transition (EMT) Expressing Markers of Hypoxic Stress in Primary and Advanced Breast Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70339-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Weils M, Lang H, Firnigl D, MacGillvray S, Coyle J, Kroll T, Williams B. 4249 POSTER Shifting Realities: a Systematic Review and Meta-synthesis of the Qualitative Evidence on Cancer and Employment. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71415-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Pachmann K, Camara O, Kroll T, Gajda M, Gellner AK, Wotschadlo J, Runnebaum IB. Efficacy control of therapy using circulating epithelial tumor cells (CETC) as "liquid biopsy": trastuzumab in HER2/neu-positive breast carcinoma. J Cancer Res Clin Oncol 2011. [PMID: 21739182 DOI: 10.1007/s00432‐011‐1000‐6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
PURPOSE The majority of targeted personalized cancer therapies are effective only in part of the patients, and most of these drugs are excessively expensive. Therefore, methods are urgently required, which reveal already early during treatment, whether the therapy is effective. In the present report, monitoring of circulating epithelial tumor cells (CETC) was used as a timely control of trastuzumab therapy in patients with HER2/neu-positive breast cancer. METHODS Seventy-nine sequential HER2/neu-positive breast cancer patients, 35 without trastuzumab, and 36 treated with 1 year of trastuzumab treatment were included. CETC from unseparated white blood cells stained with FITC-anti-EpCAM were analyzed repeatedly during chemotherapy and between 2 and 10 times during 1 year of maintenance treatment or observation. RESULTS Patients treated with trastuzumab had a better relapse-free survival than patients without trastuzumab treatment during the first 2-4 years of follow-up. Decrease in numbers or no change versus highly variable numbers or increase (fivefold or more) allowed to discriminate highly significantly and clearly (P < 0.0001, hazard ratio 5.5) between patients with a low or high risk of relapse. An increase in CETC was accompanied by an increasing portion of cells containing a very high number of HER2/neu gene amplificates. CONCLUSIONS Analysis of the behavior of CETC can, in the future, contribute to evaluate the efficacy of targeted therapy early during the course of the disease, sparing patients unnecessary treatment but also to reduce the costs for the health system and to downsize the extent and length of clinical studies.
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Affiliation(s)
- Katharina Pachmann
- Department of Experimental Hematology and Oncology, Clinic for Internal Medicine II, Friedrich Schiller University, Jena, Erlanger Allee 101, 07747, Jena, Germany.
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Pachmann K, Camara O, Kroll T, Gajda M, Gellner AK, Wotschadlo J, Runnebaum IB. Efficacy control of therapy using circulating epithelial tumor cells (CETC) as "liquid biopsy": trastuzumab in HER2/neu-positive breast carcinoma. J Cancer Res Clin Oncol 2011; 137:1317-27. [PMID: 21739182 PMCID: PMC3155034 DOI: 10.1007/s00432-011-1000-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [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: 06/01/2011] [Accepted: 06/20/2011] [Indexed: 12/24/2022]
Abstract
Purpose The majority of targeted personalized cancer therapies are effective only in part of the patients, and most of these drugs are excessively expensive. Therefore, methods are urgently required, which reveal already early during treatment, whether the therapy is effective. In the present report, monitoring of circulating epithelial tumor cells (CETC) was used as a timely control of trastuzumab therapy in patients with HER2/neu-positive breast cancer. Methods Seventy-nine sequential HER2/neu-positive breast cancer patients, 35 without trastuzumab, and 36 treated with 1 year of trastuzumab treatment were included. CETC from unseparated white blood cells stained with FITC-anti-EpCAM were analyzed repeatedly during chemotherapy and between 2 and 10 times during 1 year of maintenance treatment or observation. Results Patients treated with trastuzumab had a better relapse-free survival than patients without trastuzumab treatment during the first 2–4 years of follow-up. Decrease in numbers or no change versus highly variable numbers or increase (fivefold or more) allowed to discriminate highly significantly and clearly (P < 0.0001, hazard ratio 5.5) between patients with a low or high risk of relapse. An increase in CETC was accompanied by an increasing portion of cells containing a very high number of HER2/neu gene amplificates. Conclusions Analysis of the behavior of CETC can, in the future, contribute to evaluate the efficacy of targeted therapy early during the course of the disease, sparing patients unnecessary treatment but also to reduce the costs for the health system and to downsize the extent and length of clinical studies.
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Affiliation(s)
- Katharina Pachmann
- Department of Experimental Hematology and Oncology, Clinic for Internal Medicine II, Friedrich Schiller University, Jena, Erlanger Allee 101, 07747, Jena, Germany.
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Abstract
BACKGROUND Several methods are well established for the imaging of salivary glands. Excluding the invasive method sialendoscopy all other methods show the salivary duct system inadequately. The aim of this study is to demonstrate a method to visualize the salivary duct system by B-mode ultrasound. MATERIAL AND METHODS In 10 parotid glands of common pig cadavers the ultrasound contrast agent Levovist (®), which is galactose stabilized by palmitic acid was applied into the main salivary ducts while simultaneously performing a transcutaneous B-mode ultrasound. RESULTS In all cadavers a visualization of the salivary duct system could be achieved by the application of Levovist (®) because of contrast enhancement. This effect arises as a result of an increased reflection of ultrasound waves on the surface of the microbubbles contained in the contrast agent. CONCLUSION A reproducible visualization of the salivary duct system with B-mode ultrasound is possible by an intraductal application of an ultrasound contrast agent. In future this could be established as a reliable and fast method for imaging of the salivary ducts without ionizing radiation for the patient.
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Affiliation(s)
- T Kroll
- Justus-Liebig-Universität Gießen, Klinik für Hals-Nasen-Ohrenheilkunde, Kopf-Halschirurgie und Plastische Operationen des Universitätsklinikums Gießen & Marburg, Standort Gießen.
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Pachmann K, Carl S, Kroll T, Plaschke-Schluetter A, Pachmann UA. Quantification and molecular characterization of circulating epithelial tumor cells (CETC) for determination of their metastatic potential. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e13585] [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: 11/20/2022] Open
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Savli M, Bauer A, Häusler D, Kroll T, Hahn A, Rattay F, Mitterhauser M, Wadsak W, Kasper S, Lanzenberger R. In vivo molecular imaging reveals distinct distributions of the serotonin transporter, the major inhibitory and excitatory serotonin receptors. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72658-x] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
IntroductionBased on evidences in molecular neuroimaging, postmortem and genetic studies, impaired serotonergic neurotransmission has been implicated with affective disorders. Moreover, a growing number of evidences showed strong interrelations within the serotonergic system suggesting a common mechanism in the modulation of receptor and transporter densities.ObjectiveHere we directly investigated the regional expression of the 5-HT1A, 5-HT2A and 5-HTT using PET and the three highly selective and specific radioligands [carbonyl-11C]WAY-100635, [18F]Altanserin and [11C]DASB in healthy subjects.MethodsA total of 55 healthy subjects (5-HT1A: 36 subjects, 18 males, age = 26.0 ± 4.9; 5-HT2A: 19 subjects, 11 males, age = 28.2 ± 5.9; 5-HTT: 8 males, age = 28.12 ± 3.6) were included in this study. Binding potential (BPND) values were quantified according to the AAL parcellation scheme.ResultsBPND values averaged over both hemispheres ranged from 0.40–6.35 for the 5-HT1A receptor; 0.01–2.01 for the 5-HT2A receptor and 0.09–2.05 for the 5-HTT, respectively. There was a specific topological pattern according to the ratio between the 5-HT1A, 5-HT2A receptors and 5-HTT (“fingerprints”).ConclusionsSuch information can be essential for detecting potential local alterations in the ratio between different binding proteins on a network level in pathological conditions.Moreover, these data might provide further insight in area-specific effects of frequently prescribed selective serotonin re-uptake inhibitors (SSRI): 1)due to the distinct local receptor and transporter availability;2)SSRI application alters the postsynaptic receptor expression and thus;3)leads to a modified interaction of inhibitory and exhibitory receptors.
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Pachmann K, Camara O, Kroll T, Carl S, Rüdiger N, Rabenstein C, Plaschke-Schluetter A. Combining molecular analysis, chemo sensitivity testing in vitro, and therapy monitoring in vivo on disseminated tumor cells in breast cancer patients. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e21116] [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: 11/20/2022] Open
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Kozak J, Krysztoforski K, Kroll T, Helbig S, Helbig M. Error analysis for determination of accuracy of an ultrasound navigation system for head and neck surgery. ACTA ACUST UNITED AC 2010; 14:69-82. [PMID: 20121587 DOI: 10.3109/10929080903230901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The use of conventional CT- or MRI-based navigation systems for head and neck surgery is unsatisfactory due to tissue shift. Moreover, changes occurring during surgical procedures cannot be visualized. To overcome these drawbacks, we developed a novel ultrasound-guided navigation system for head and neck surgery. A comprehensive error analysis was undertaken to determine the accuracy of this new system. MATERIALS AND METHODS The evaluation of the system accuracy was essentially based on the method of error definition for well-established fiducial marker registration methods (point-pair matching) as used in, for example, CT- or MRI-based navigation. This method was modified in accordance with the specific requirements of ultrasound-guided navigation. The Fiducial Localization Error (FLE), Fiducial Registration Error (FRE) and Target Registration Error (TRE) were determined. RESULTS In our navigation system, the real error (the TRE actually measured) did not exceed a volume of 1.58 mm(3) with a probability of 0.9. A mean value of 0.8 mm (standard deviation: 0.25 mm) was found for the FRE. The quality of the coordinate tracking system (Polaris localizer) could be defined with an FLE of 0.4 +/- 0.11 mm (mean +/- standard deviation). The quality of the coordinates of the crosshairs of the phantom was determined with a deviation of 0.5 mm (standard deviation: 0.07 mm). CONCLUSION The results demonstrate that our newly developed ultrasound-guided navigation system shows only very small system deviations and therefore provides very accurate data for practical applications.
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Affiliation(s)
- J Kozak
- Aesculap AG, Tuttlingen, Germany.
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Camara O, Kroll T, Oppel S, Runnebaum I, Pachmann K. Circulating Epithelial Cells as a Tool for Monitoring Treatment Success of Primary Chemotherapy with Simultaneous or Sequential and without Trastuzumab. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-3016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
In spite of ample prognostic markers available in breast cancer, still a considerable proportion of patients with good prognostic markers suffers relapse whereas patients with poor prognostic markers may remain disease free. It would, therefore, be desirable to control, at the individual patient level, whether the applied therapy is effective. Our previous work indicates, that in cancer patients most of the epithelial cells circulating in peripheral blood (CETC) are part of the tumor and that the response of these cells reflects the response of the tumor to the applied therapies.Therefore monitoring the decrease or increase in numbers of these cells providing a unique tool for therapy surveillance was used to monitor neoadjuvant chemotherapy in 26 her2/neu positive breast cancer patients with either IHC3+ or FISH confirmed Her2/neu positive breast cancer. Patients were prospectively analysed for the number of CETC before therapy, before each new cycle of chemotherapy and during maintenance therapy at each visit initially every three months and subsequently at more extended intervals. 1ml of blood was drawn into EDTA vials, red blood cells lysed and the white blood cell pellet stained with FITC-labelled anti-Epcam. Green fluorescent cells were detected by image analysis and dead cells excluded due to red PI fluorescence.After an initial variable reduction of CETC during neoadjuvant chemotherapy, tightly connected to tumor reduction we regularly observed a massive release of cells from the shrinking tumor. Although these cells may not be able to settle in tumors with low metastatic potential, in 4/4 patients with Her2/neu positive tumors who did not receive trastuzumab the number of CETCs further increased after termination of therapy and surgery followed by rapid distant relapse indicating that the cells released in these patients may be highly aggressive with a high potential to settle and grow into metastases.It is, however not clear, whether sequential or simultaneous addition of trastuzumab to chemotherapy is preferential. In our hands 65% of the patients receiving simultaneous trastuzumab showed increasing CETCs and all have suffered relapse whereas all patients with decreasing CETCs are still in complete remission indicating that in the neoadjuvant situation during maintenance therapy an increase in CETC is the earliest indicator of imminent relapse.6/6 patients who received trastuzumab sequentially to the neoadjuvant treatment all showed decreasing numbers with all of them still without signs of disease after 4 years of follow up. Thus, trastuzumab was highly effective in this treatment and even if the tumor cells were not eliminated immediately, trastuzumab contributed to prevent them from settling and growing into metastases and CETC monitoring favours sequential trastuzumab.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 3016.
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Affiliation(s)
- O. Camara
- 1University Hospital Friedrich Schiller University Jena, Germany
| | - T. Kroll
- 2University Hospital Friedrich Schiller University Jena, Germany
| | - S. Oppel
- 2University Hospital Friedrich Schiller University Jena, Germany
| | - I. Runnebaum
- 1University Hospital Friedrich Schiller University Jena, Germany
| | - K. Pachmann
- 2University Hospital Friedrich Schiller University Jena, Germany
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Steinert S, Kroll T, Taubert I, Pusch L, Hortschansky P, Höffken K, Wölfl S, Clement J. Unfolded protein response is activated by single application of BMP-2. Cell Commun Signal 2009. [PMCID: PMC4291720 DOI: 10.1186/1478-811x-7-s1-a37] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Kroll T, Aristov VY, Molodtsova OV, Ossipyan YA, Vyalikh DV, Büchner B, Knupfer M. Spin and Orbital Ground State of Co in Cobalt Phthalocyanine. J Phys Chem A 2009; 113:8917-22. [DOI: 10.1021/jp903001v] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. Kroll
- IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany, Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr. 142432, Russia, and Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
| | - V. Yu. Aristov
- IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany, Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr. 142432, Russia, and Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
| | - O. V. Molodtsova
- IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany, Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr. 142432, Russia, and Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
| | - Yu. A. Ossipyan
- IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany, Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr. 142432, Russia, and Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
| | - D. V. Vyalikh
- IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany, Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr. 142432, Russia, and Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
| | - B. Büchner
- IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany, Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr. 142432, Russia, and Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
| | - M. Knupfer
- IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany, Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr. 142432, Russia, and Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
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Helbig M, Krysztoforski K, Kroll T, Kucharski J, Popek M, Helbig S, Gstoettner W, May A, Kozak J. Navigation-supported and sonographically-controlled fine-needle puncture in soft tissues of the neck. Ultrasound Med Biol 2009; 35:436-442. [PMID: 19056160 DOI: 10.1016/j.ultrasmedbio.2008.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2008] [Revised: 08/13/2008] [Accepted: 09/17/2008] [Indexed: 05/27/2023]
Abstract
In surgery, sonography has been a well-accepted means of orientation for years. The immediate vicinity of many vital structures in the head and neck region calls for a very exact visualization of the surgical instrument in the 2-D ultrasonic picture. We report on the development of a new method for navigation-supported and sonographically-controlled fine-needle puncture in soft tissues of the neck. Our system comprises a navigated ultrasound probe, a navigated fine-puncture needle and a coordinate sensor. A personal computer with specially-developed software assists calibration and surgical application. The applicability test for the system is described. In vitro, a model lymph node of 9 mm in diameter had been hit. It is shown that the target structure can be aimed at very precisely by the navigated puncture needle. An accuracy of 97% and a specificity of 99% could be demonstrated. The development of a very precise and easy-to-handle method for navigation-supported fine-needle puncture in the neck region is presented. The outstanding advantage of this method is that no rigid reference gadget fixed to the patient's body is necessary. That makes this method very suitable for surgery in the neck region. Contrary to other sonographically-supported navigation methods in the head and neck region, preoperative imaging (CT or MRT) is dispensable.
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Affiliation(s)
- M Helbig
- Department of Otolaryngology, Head and Neck Surgery, University of Frankfurt/Main, Frankfurt/Main, Germany.
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Camara O, Hammer U, Gajda M, Kroll T, Krauspe S, Gellner A, Joerke C, Runnebaum IB, Hoeffken K, Pachmann K. Behaviour and metastatic potential of her2/neu positive and her2/neu negative circulating epithelial tumor cells (CETC) during adjuvant systemic therapy in breast cancer. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-5030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #5030
Background: Most tumor patients do not die from the primary tumor but from metastases in vital organs. Here we report on the influence of adjuvant chemotherapy and trastuzumab on the remnant CETC patients with her2/ positive tumors after surgery and the impact on metastasis formation.
 Material and Methods: Tumor cells were quantified with an automated microscope (Laser Scanning Cytometer®, Icis or ScanR) from anticoagulated blood drawn before each new therapy cycle from patients treated with systemic chemotherapy after surgery and subsequent maintenance therapy with trastuzumab. After red blood cell lysis leucocytes were stained with PE-anti-CD45 and tumor cells with FITC-anti-EpCAM. FISH analysis was performed for determination of the proportion of her2/neu positive cells and changes registered as % increase or decrease. The response to therapy was correlated to outcome.
 Results: Almost all her2/neu positive breast cancer patients scheduled for systemic treatment had CETC before therapy. A decrease in cell numbers highly correlated with relapse free survival. Her2/neu positive patients responding to therapy with an increase in CETC were at increased risk to develop further increasing cell numbers also during subsequent trastuzumab treatment. Her2/neu positive patients who did never receive trastuzumab all had increasing CETC numbers during the postoperative observation time and all have suffered relapse. Patients who received trastuzumab only after adjuvant treatment all had decreasing CETC numbers and all are in sustained complete remission after up to 4 years. Of the patients who received trastuzumab together with adjuvant treatment those who showed no change or an increase in CETC in spite of trastuzumab had increasing proportions of FISH high amplified cells and a higher risk of relapse than patients with decreasing CETC during trastuzumab.
 Discussion: Monitoring CETC will not only provide the earliest and most reliable indicator of successful adjuvant treatment and spare patients unnecessary treatment but also patients with the highly aggressive her2/neu positive tumors can be discerned into such with high and low risk of relapse even during trastuzumab therapy. This warrants further therapy studies to control what patients may benefit from addition of e.g. small molecules already during therapy before development of metastases.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 5030.
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Affiliation(s)
- O Camara
- 1 Women's Hospital, Friedrich Schiller University Jena, Jena, Germany
| | - U Hammer
- 2 Clinic for Internal Medicine II, Friedrich Schiller University Jena, Jena, Germany
| | - M Gajda
- 3 Institute for Pathology, Friedrich Schiller University Jena, Jena, Germany
| | - T Kroll
- 2 Clinic for Internal Medicine II, Friedrich Schiller University Jena, Jena, Germany
| | - S Krauspe
- 1 Women's Hospital, Friedrich Schiller University Jena, Jena, Germany
| | - A Gellner
- 2 Clinic for Internal Medicine II, Friedrich Schiller University Jena, Jena, Germany
| | - C Joerke
- 2 Clinic for Internal Medicine II, Friedrich Schiller University Jena, Jena, Germany
| | - IB Runnebaum
- 1 Women's Hospital, Friedrich Schiller University Jena, Jena, Germany
| | - K Hoeffken
- 2 Clinic for Internal Medicine II, Friedrich Schiller University Jena, Jena, Germany
| | - K Pachmann
- 2 Clinic for Internal Medicine II, Friedrich Schiller University Jena, Jena, Germany
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Helbig M, Krysztoforski K, Kucharski J, Popek M, Kroll T, Helbig S, May A, Gstoettner W, Kozak J. [Navigation-assisted sonography for soft tissues in the head and neck region]. HNO 2008; 57:1010-5. [PMID: 18846356 DOI: 10.1007/s00106-008-1801-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND In soft tissue surgery of the head and neck region tissue shifts limit the usefulness of conventional CT/MRI-based navigation procedures. Furthermore, changes caused by invasive measures cannot be visualized. METHODS A novel navigation device for sonography of soft tissues was developed. This consists of a navigated ultrasound scanner, a navigated surgical instrument, and a personal computer with custom-made software. Its use makes an additional visualization by means of CT or MRI dispensable. RESULTS The system deviation (three-dimensional error) of this newly developed prototype was less than 1 mm. The practical application in a model setup showed good handling properties of the system. Orientation and approach of the surgical instrument to the sonographically visualized target structure were rapid and accurate. CONCLUSION This new navigation system does not require additional CT or MRI images. The navigated ultrasound probe shows tissue changes in real time. This navigation system is especially suitable for invasive procedures in soft tissues.
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Affiliation(s)
- M Helbig
- Zentrum für Hals-Nasen-Ohren-Heilkunde, Universitätsklinikum Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main.
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Gajda M, Camara O, Oppel S, Kroll T, Jörke C, Krauspe S, Hammer U, Rabenstein C, Untch M, Runnebaum IB, Pachmann K. Monitoring circulating epithelial tumor cells (CETCs) during primary systemic chemotherapy including trastuzumab for early prediction of outcome in patients with Her2/neu-positive tumors. Ann Oncol 2008; 19:2090-1. [PMID: 18820243 DOI: 10.1093/annonc/mdn648] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
In this paper we explore how aspects of the social world may be linked to mental health and psychiatric morbidity and propose that conditions should be created which allow individuals and communities greater opportunities for self-care and self-management. Specifically the focus is on social connections, disability and homelessness and work stress. There is a clear policy direction pursued by many national governments and international organizations such as the World Bank to build healthy communities. The environment as it relates to health and well-being can be thought of in terms of physical and social dimensions. We will argue that self-care and self-management at both the individual and the community level, in partnership with economic and health policies, are necessary to effectively address social determinants. It will also be suggested that although many in the profession will make the usual refrain that this has little relevance to mental health nurses, the opposite may be the case as mental health nurses have an important, albeit ill-defined, role to play in tackling social determinants.
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Affiliation(s)
- W Lauder
- School of Nursing and Midwifery, University of Dundee, 11 Airlie Place, Dundee, UK.
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Kroll T, von Rango U, Classen-Linke I, Beier HM, Krusche CA. Leucin rich repeat G-Protein coupled receptor expression in human cyclic endometrium as well as in first and second trimester decidua. Exp Clin Endocrinol Diabetes 2006. [DOI: 10.1055/s-2006-932972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Klewer J, Kroll T, Beatty P, Kugler J. Nutzung des Gesundheitssystems durch Multiple Sklerose Patienten in Deutschland und in den USA. Gesundheitswesen 2004. [DOI: 10.1055/s-2004-833982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Neri MT, Kroll T. Understanding the consequences of access barriers to health care: experiences of adults with disabilities. Disabil Rehabil 2003; 25:85-96. [PMID: 12554383] [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: 02/28/2023]
Abstract
PURPOSE The study explores: (1) the scope and nature of the consequences that adults with disabilities perceive as the result of inappropriate access to health care services; (2) the variability of these consequences by demographic attributes such as disability type, gender, and health insurance type; and (3) the inter-relatedness and multidimensionality of these consequences. METHODS Qualitative, semi-structured, in-depth interviews were administered over the telephone to 30 participants with spinal cord injury, cerebral palsy, or multiple sclerosis as part of a nation-wide study on access and utilisation in the USA. Interviews were transcribed and coded for analysis using the qualitative analysis program, NVivo. RESULTS Consequences were grouped into one of five categories: social, psychological, physical, economic and independence issues. Responses differed slightly with regard to disability type, gender and health insurance type. There was substantial overlap among consequence categories. For most respondents, negative consequences were not limited to just one area--frequently, one consequence triggered others. CONCLUSIONS Health insurers and providers need a better understanding of the multiple consequences of access barriers. Based on this knowledge, detrimental and costly effects of inappropriate service delivery could be more effectively prevented. Implications for health care services and policy are discussed.
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Affiliation(s)
- M T Neri
- NRH Center for Health and Disability Research, 1016 16th Street, NW, Suite 400, Washington, DC 20036-5750, USA.
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Kroll T, Odyvanova L, Clement JH, Platzer C, Naumann A, Marr N, Höffken K, Wölfl S. Molecular characterization of breast cancer cell lines by expression profiling. J Cancer Res Clin Oncol 2002; 128:125-34. [PMID: 11935298 DOI: 10.1007/s00432-001-0308-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2001] [Accepted: 10/12/2001] [Indexed: 10/27/2022]
Abstract
PURPOSE Gene expression patterns provide detailed insights into cellular regulation that reflect minor differences of cellular capacity not accessible by standard descriptions of the cellular phenotype or origin. METHODS To identify fundamental differences and similarities we analyzed the gene expression patterns of four breast cancer cell lines: MCF-7, SK-BR-3, T-47D, and BT-474. RESULTS Although only a small subset of genes (597) is represented on the Atlas-cDNA-Array (Clontech) used, clear differences in the expression of a number of genes could be detected. For example, unique high levels of expressions were found for the HLH-protein ID-1 (MCF-7) and the receptor tyrosine kinase erbB2 (SK-BR-3 and T-47D). Most genes analyzed were expressed at comparable levels in all cell lines studied. CONCLUSIONS For interpretation of the results sets of genes that show similar variation of expression among the cells were grouped together. Furthermore, our analysis allows the assignment of similarity values that lead to a relation profile of the cell lines. How these results correlate with known biological properties of the cell lines is discussed. Additionally, we demonstrate that results obtained by cDNA-Array hybridization for expression of the ErbB receptor family correlate well with competitive RT-PCR, thus confirming the reliability of the cDNA-Array analysis.
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Affiliation(s)
- T Kroll
- Clinic for Internal Medicine II (Hematology, Oncology, Metabolic Diseases and Diabetes), Friedrich-Schiller-University Jena, Erlanger Allee 101, 07740 Jena, Germany
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Smith WM, Zhou XP, Kurose K, Gao X, Latif F, Kroll T, Sugano K, Cannistra SA, Clinton SK, Maher ER, Prior TW, Eng C. Opposite association of two PPARG variants with cancer: overrepresentation of H449H in endometrial carcinoma cases and underrepresentation of P12A in renal cell carcinoma cases. Hum Genet 2001; 109:146-51. [PMID: 11511919 DOI: 10.1007/s004390100563] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2001] [Accepted: 06/14/2001] [Indexed: 11/28/2022]
Abstract
Peroxisome proliferator activated receptor gamma (PPARgamma) is a nuclear hormone receptor that has been shown to regulate differentiation and cell growth. Studies of the differentiative effects of PPARgamma agonists on several cancer cell lines led to the hypothesis that dysfunction of PPARgamma contributes to tumorigenesis. These functional observations were strengthened by genetic evidence: somatic loss-of-function mutations in PPARG, encoding PPARgamma, in sporadic colorectal carcinomas and somatic translocation of PAX8 and PPARG in follicular thyroid carcinoma. Recently overrepresentation of the H449H variant was found in a cohort of American patients with glioblastoma multiforme. The glioblastoma multiforme data suggest that PPARG contributes common, low-penetrance alleles for cancer susceptibility. To test this hypothesis in a broader range of cancers we examined a series of carcinomas of the cervix, endometrium, ovary, prostate, and kidney for germline sequence variation in PPARG. In addition to the two common sequence variants, P12A and H449H, there were five other sequence variants. P12A alleles were underrepresented in renal cell carcinoma patients compared to country-of-origin race-matched controls (3.75% vs. 12.1%, P<0.04). In contrast, the H449H variant was overrepresented in individuals with endometrial carcinoma compared to controls (14.4% vs. 6.25%, P<0.02). These observations lend genetic evidence consistent with our hypothesis that PPARG serves as a common, low-penetrance susceptibility gene for cancers of several types, especially those epidemiologically associated with obesity and fat intake.
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Affiliation(s)
- W M Smith
- Clinical Cancer Genetics Program, Division of Human Genetics, Department of Internal Medicine, The Ohio State University, Columbus OH 43210, USA
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Kroll T, Petermann F. [Promoting social integration as the responsibility of rehabilitation in pediatric oncology]. Rehabilitation (Stuttg) 2000; 39:324-37. [PMID: 11189777 DOI: 10.1055/s-2000-8940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Survival rates of most paediatric cancers are steadily improving as a result of improvements in diagnostics and treatment protocols. Long-term survival renders physical late effects and psychosocial adjustment problems ever more visible. The focus of this article is on school re-entry and social reintegration as core tasks of comprehensive rehabilitation efforts. So far only few systematic programmes exist in Germany to facilitate school re-entry and social integration of paediatric cancer survivors. The article outlines the prerequisites for such interventions and provides examples of re-entry programmes.
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Affiliation(s)
- T Kroll
- National Rehabilitation Hospital, Center for Health and Disability Research, Washington, D.C., USA.
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Mueller E, Smith M, Sarraf P, Kroll T, Aiyer A, Kaufman DS, Oh W, Demetri G, Figg WD, Zhou XP, Eng C, Spiegelman BM, Kantoff PW. Effects of ligand activation of peroxisome proliferator-activated receptor gamma in human prostate cancer. Proc Natl Acad Sci U S A 2000; 97:10990-5. [PMID: 10984506 PMCID: PMC27136 DOI: 10.1073/pnas.180329197] [Citation(s) in RCA: 341] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARgamma) is a nuclear hormone receptor that plays a key role in the differentiation of adipocytes. Activation of this receptor in liposarcomas and breast and colon cancer cells also induces cell growth inhibition and differentiation. In the present study, we show that PPARgamma is expressed in human prostate adenocarcinomas and cell lines derived from these tumors. Activation of this receptor with specific ligands exerts an inhibitory effect on the growth of prostate cancer cell lines. Further, we show that prostate cancer and cell lines do not have intragenic mutations in the PPARgamma gene, although 40% of the informative tumors have hemizygous deletions of this gene. Based on our preclinical data, we conducted a phase II clinical study in patients with advanced prostate cancer using troglitazone, a PPARgamma ligand used for the treatment of type 2 diabetes. Forty-one men with histologically confirmed prostate cancer and no symptomatic metastatic disease were treated orally with troglitazone. An unexpectedly high incidence of prolonged stabilization of prostate-specific antigen was seen in patients treated with troglitazone. In addition, one patient had a dramatic decrease in serum prostate-specific antigen to nearly undetectable levels. These data suggest that PPARgamma may serve as a biological modifier in human prostate cancer and its therapeutic potential in this disease should be further investigated.
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Affiliation(s)
- E Mueller
- Dana-Farber Cancer Institute and Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
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Affiliation(s)
- H A KyngAs
- Department of Nursing, University of Oulu, Oulu, Finland
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