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Mao W, Hrycushko B, Yan Y, Foster R, Albuquerque K. SU-E-J-61: Monitoring Tumor Motion in Real-Time with EPID Imaging During Cervical Cancer Treatment. Med Phys 2015. [DOI: 10.1118/1.4924148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Foster R, Ding C, Jiang S. SU-E-T-520: Investigation of the Impact of Respiratory Motion On Spine SAbR Dose Distributions. Med Phys 2015. [DOI: 10.1118/1.4924882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Medin P, Pompos A, Britton L, Foster R. SU-E-P-01: Adaptation of Commercial, Web-Based, Medical Residency Management Software (MedHub, Inc.) for a Medium-Sized Medical Physics Residency Program. Med Phys 2015. [DOI: 10.1118/1.4923937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ouyang L, Lee H, Pompos A, Yan Y, Jiang S, Foster R. SU-E-T-389: Evaluation of Flattening-Filter-Free Arcs for Lung SBRT. Med Phys 2015. [DOI: 10.1118/1.4924750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tan J, Yan Y, Hager F, Gu X, Jia X, Pompos A, Foster R, Stojadinovic S, Yang M, Hrycushko B, Folkerts M, Zhao B, Medin P, Ding C, Jiang S. SU-D-BRD-02: Auto Weekly - An Automated Online Weekly Chart Check System for Medical Physics. Med Phys 2015. [DOI: 10.1118/1.4923868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Foster C, Breckons M, Cotterell P, Barbosa D, Calman L, Corner J, Fenlon D, Foster R, Grimmett C, Richardson A, Smith PW. Cancer survivors' self-efficacy to self-manage in the year following primary treatment. J Cancer Surviv 2015; 9:11-9. [PMID: 25028218 PMCID: PMC4341005 DOI: 10.1007/s11764-014-0384-0] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 07/01/2014] [Indexed: 02/02/2023]
Abstract
PURPOSE Cancer survivors are increasingly expected to manage the consequences of cancer and its treatment for themselves. There is evidence that self-efficacy is important for successful self-management and that this can be enhanced with support. The purpose of this study was to assess self-efficacy to manage problems in the year following primary treatment. METHODS This cross-sectional online survey included cancer survivors who had completed their treatment within the past 12 months. Self-efficacy was assessed and variables expected to be associated with self-efficacy were measured using validated scales including quality of life, well-being, illness perceptions, depression and social support. RESULTS One hundred eighty-two respondents (mean age 50; 81% female) completed the survey. They had been treated for a range of cancers; most commonly breast (45%). Self-efficacy scores varied between individuals and according to the illness-related task to be managed. Respondents were least confident in managing fatigue and most confident in accessing information about their cancer. Individuals most likely to report low self-efficacy were women, those experiencing higher levels of pain and/or depression, lower well-being scores, lower socio-economic status, low levels of social support, or a more negative perception of cancer. CONCLUSIONS Self-efficacy to self-manage problems faced as a consequence of cancer and its treatment can vary widely in the year following treatment. Fatigue may be particularly difficult to manage. IMPLICATIONS FOR CANCER SURVIVORS Variations in self-efficacy highlight the importance of assessing specific problems faced and people's confidence to manage them in order to tailor appropriate self-management support.
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Bachi ALL, Rios FJO, Vaisberg PHC, Martins M, de Sá MC, Victorino AB, Foster R, Sierra APR, Kiss MAPD, Vaisberg M. Neuro-immuno-endocrine modulation in marathon runners. Neuroimmunomodulation 2015; 22:196-202. [PMID: 25170624 DOI: 10.1159/000363061] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 04/18/2014] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Sports practice alters the homeostasis of athletes. To achieve homeostatic equilibrium, the integrated action of the neuroendocrine and immune systems is necessary. Here we studied the relation between cytokines, hormones and mood states in marathon runners. METHODS A total of 20 male recreational marathon runners (mean age = 35.7 ± 9 years) and 20 male sedentary individuals (mean age = 35.5 ± 7 years) were recruited. We compared the serum levels of growth hormone (GH), cortisol and interleukins 8 and 10 and the amounts of these two cytokines spontaneously produced by peripheral blood mononuclear cells. Blood samples of the sedentary group were collected at rest. Blood from the marathon runners was collected at rest (baseline: 24 h before the race), immediately after a marathon and 72 h after a marathon. Mood state analysis in both groups was performed using the 24-item Brunel Mood Scale (BRUMS). RESULTS Our results showed that, at rest, levels of interleukins 8 and 10 in the supernatant of culture cells, the serum concentration of GH, and tension and vigour (evaluated using the BRUMS), were significantly higher in athletes compared to sedentary people. Immediately after the race all serum parameters analysed were statistically higher than baseline values. At 72 h after the marathon, serum levels of hormones and interleukins returned to values at rest, but the concentrations of interleukins in the supernatant of culture cells showed a significant reduction compared to values at rest. CONCLUSION The higher serum levels of GH in athletes at rest and the higher production of cytokines in culture without previous stimulus suggest that marathon runners present mechanisms that may be associated with preparing the body to perform prolonged strenuous exercise, such as a marathon.
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Meyer J, Foster R, Lev-Cohain N, Yokoo T, Schwarz R, Rule W, Solberg T, Timmerman R. Toxicity and Efficacy Results From a Phase I Dose-Escalation Study of Single-Fraction Stereotactic Radiation Therapy for Liver Metastases. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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59
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Fowble B, Park C, Peled A, Sbitany H, Foster R, Hanlon A. Rates of Reconstruction Failure (RF) in Women Undergoing Immediate Reconstruction (IR) with Tissue Expander/Implant (TE/I) and Post-mastectomy Radiation. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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60
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Hartley A, Foster R, Brook MG, Cassell JA, Mercer CH, Coyne K, Hughes G, Crook P. Assessment of the impact of the London Olympics 2012 on selected non-genitourinary medicine clinic sexual health services. Int J STD AIDS 2014; 26:329-35. [DOI: 10.1177/0956462414537481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
With minimal information on sexual health provision during mass-gathering events, our aim was to describe the use of sexual health, contraceptive, sex worker and sexual assault services during the London 2012 Olympics. We analysed data from five sources. One contraceptive service provider reported a 10% increase in attendance during the main Games, while emergency contraception prescriptions rose during the main Olympics, compared to the week before, but were similar or lower than at the beginning and end of the summer period. A health telephone advice line reported a 16% fall in sexual health-related calls during the main Olympics, but a 33% increase subsequently. London sexual assault referral centres reported that 1.8% of sexual assaults were Olympics-linked. A service for sex workers reported that 16% started working in the sex industry and 7% moved to London to work during the Olympics. Fifty-eight per cent and 45% of sex workers reported fewer clients and an increase in police crack-downs, respectively. Our results show a change in activity across these services during the 2012 summer, which may be associated with the Olympics. Our data are a guide to other services when anticipating changes in service activity and planning staffing for mass-gathering events.
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Chiu T, Rozario T, Bereg S, Klash S, Kearney V, Liu H, Jiang L, Foster R, Mao W. TH-E-17A-10: Markerless Lung Tumor Tracking Based On Beams Eye View EPID Images. Med Phys 2014. [DOI: 10.1118/1.4889685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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62
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Chiu T, Foster R, Mao W. SU-E-J-272: Long-Term Evaluation and Cross-Checking of Two Geometric Calibration Systems On Linacs. Med Phys 2014. [DOI: 10.1118/1.4888326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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63
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Growdon W, Groeneweg J, Byron V, Hernandez S, Borger D, Tambouret R, Schorge J, Del Carmen M, Foster R, Rueda B. Dual HER2 targeting impedes growth of HER2 gene-amplified uterine papillary serous carcinoma xenografts. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.03.308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kinney ME, Lamberski N, Wack R, Foster R, Neely M, Tell L, Gehring R. Population pharmacokinetics of a single intramuscular administration of tulathromycin in adult desert tortoises (Gopherus agassizii
). J Vet Pharmacol Ther 2014; 37:500-7. [DOI: 10.1111/jvp.12118] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 01/24/2014] [Indexed: 11/27/2022]
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Munster PN, Chen S, Thomas S, Thurn KT, Raha P, Foster R, Irvin C, Sbitany H. Abstract P4-16-01: A novel approach to breast cancer prevention: Exploiting autologous fat grafting for the local delivery of cancer therapeutics. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p4-16-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast cancer remains a considerable health concern, despite major advances in the treatment and prevention of breast cancer. Inhibition of estrogen receptor signaling is one of the most effective therapies for patients with hormone receptor positive breast cancer. However, even after chemotherapy and hormonal therapy, local recurrence occurs frequently, and undesirable side effects lead to drug discontinuation in an estimated 40% of patients on adjuvant therapy.
Autologous fat transfer is an emerging therapy used in breast reconstruction to restore surgical deformities after lumpectomy, or to rebuild the breast following mastectomy. This is an attractive option for both radiated and non-radiated patients, as complication rates in both groups are exceedingly low. Fat is injected into the breast or surgical cavity to maximize its contact with local vascularized tissue, to promote re-vascularization and survival of the adipose tissue. Thus, fat cells are injected throughout the tissue surrounding the surgical margin. We hypothesize that harvested adipose tissue can be loaded with a lipophilic drug prior to its re-injection into the breast cavity and its surrounding tissue. With the release of drug from the transplanted adipose tissue over time, the local concentration of an anti-estrogen within the breast parenchyma would be increased and systemic toxicity may be minimized.
Method: Human adipose tissue was acquired from patients undergoing liposuction for autologous grafting. Tissue was washed with warm PBS, divided into 0.5 mL aliquots, and incubated in complete DMEM (10% FBS) containing increasing concentrations of 4-OH tamoxifen (0, 10, 20, or 40 uM) or fulvestrant (0, 0.1, 0.5, or 1.0 uM) for 12 hours. Following incubation, adipose tissue was washed thoroughly and co-cultured with MCF7 cells for 96 hours. Adipocyte co-cultured MCF7 were then collected and evaluated for proliferation, viability and effects on estrogen receptor signaling and compared to MCF7 directly exposed to anti-estrogens.
Results: When co-culturing tamoxifen- or fulvestrant-loaded human adipocytes with MCF7 breast cancer cells in vitro, we observed a dose-dependent reduction in cell proliferation (tamoxifen, 60% reduction; fulvestrant, 40% reduction) and viability (20%), comparable to directly drugged media. Examination of the molecular response to fulvestrant demonstrated a dose dependent down regulation of ER protein expression and activity (e.g. PgR and Cyclin D1). Currently, we are characterizing the pharmacokinetics of anti-estrogen uptake and release in both in vitro and in vivo.
Summary: Our preliminary data suggest that co-culturing human adipocytes with an anti-estrogen results in tumor growth inhibition and abrogation of estrogen receptor signaling. Human adipocytes used to fill the tumor bed cavity or mastectomy pocket could therefore be used as a vehicle to deliver anti-estrogens to residual tumor cells and prevent tumor regrowth. This method may be a novel technology to combine reconstructive surgery and anti-cancer therapy and prevention.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P4-16-01.
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Richardson A, Wagland R, Foster R, Symons J, Davis C, Boyland L, Foster C, Addington-Hall J. Uncertainty and anxiety in the cancer of unknown primary patient journey: a multiperspective qualitative study. BMJ Support Palliat Care 2013; 5:366-72. [PMID: 24644189 DOI: 10.1136/bmjspcare-2013-000482] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Patients with cancer of unknown primary (CUP) have metastatic malignant disease without an identifiable primary site; it is the fourth most common cause of cancer death. OBJECTIVES To explore patients' informal and professional carers' experiences of CUP to inform development of evidence-based, patient-centred care. METHODS Qualitative study involving development of multiple exploratory case studies, each comprising a patient and nominated informal and professional carers, with contextual data extracted from medical records. RESULTS 17 CUP patients, 14 informal and 13 professional carers participated in the study. Two inter-related themes distinct to CUP emerged: uncertainty and continuity of care. In the absence of a primary diagnosis, patients and informal carers experienced uncertainty regarding prognosis, possible recurrence and the primary's hereditary potential. Professional carers experienced difficulty communicating uncertainty to patients, ambiguity in deciding optimal treatment plans in the absence of trial data and a test or treat dilemma: when to discontinue seeking the primary and start treatment. Common problems with care continuity were amplified for CUP patients relating to coordination, accountability and timeliness of care. The remit of multidisciplinary teams (MDTs) often excluded CUP, leading to "MDT tennis" where patients were "bounced" between MDTs. CONCLUSIONS The experience of those with CUP is distinctive and it can serve to amplify some of the issues encountered by people with cancer. The clinical uncertainties related to CUP compound existing shortcomings in continuity of care, increasing the likelihood of a disrupted patient journey. However, while little can be done to overcome uncertainty, more could be done to address issues regarding continuity of care.
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Zhen H, Hrycushko B, Pompoš A, Foster R, Yan Y, Stojadinovic S, Solberg T, Gu X. Evaluation of Acuros XB for SAbR Planning of Thoracic Spinal Tumors. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Brook G, Hall V, Hughes G, Marsh K, Hartley A, Foster R, Crook P, Coyne K, Mercer C, Cassell J. P3.342 Sex and the 2012 Olympics Part 2. Prospective Study of the Impact of Olympic Visitors on Specialist STI Services in London and Weymouth and on STIs Diagnosed. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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69
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Growdon W, Johnson T, Byron V, Foster R, Tambouret R, Schorge J, Penson R, Rueda B, Borger D. A uterine-specific PIK3CA and PTEN dual mutation signature is associated with poor prognosis. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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70
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Reynolds R, Stojadinovic S, Pompos A, Gu X, Foster R, Solberg T. SU-E-T-575: Independent Verification of VMAT Treatment Plans Using a DICOM-RT Framework. Med Phys 2013. [DOI: 10.1118/1.4815003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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71
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Zhen H, Hrycushko B, Pompos A, Foster R, Yan Y, Stojadinovic S, Solberg T, Gu X. SU-E-T-556: Verification and Evaluation of Acuros XB Dose Calculations for Stereotactic Ablative Radiotherapy of the Thoracic Spine. Med Phys 2013. [DOI: 10.1118/1.4814985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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72
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Glide-Hurst C, Bellon M, Foster R, Altunbas C, Speiser M, Altman M, Westerly D, Wen N, Zhao B, Miften M, Chetty IJ, Solberg T. Commissioning of the Varian TrueBeam linear accelerator: A multi-institutional study. Med Phys 2013; 40:031719. [DOI: 10.1118/1.4790563] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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73
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DaCosta V, Chin L, Wynter S, Harriott J, Christie L, Frederick-Johnston S, Frederick J, McKenzie C, Everett D, Foster R, Walters Y, Pottinger A. Anticardiolipin antibodies and lupus anticoagulants among women undergoing in vitro fertilization in Jamaica. W INDIAN MED J 2012; 61:789-794. [PMID: 23757899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE The aims of this study were to evaluate the effect of anticardiolipin antibody (aCL) and lupus anticoagulant (LA) on the outcome of the in vitro ferlitization (IVF) cycles and to determine the prevalence of these antibodies in infertile women seeking IVF in Jamaica. METHODS A retrospective cohort study was performed to determine if screening patients for aCL and LA had any significant impact on the outcome of the IVF process. Each patients hospital record, between March 2000 and March 2010, was collected and the relevant data extracted. RESULTS The prevalence of aCL in this cohort of Jamaican women was moderate/high positive 3.88%, low positive 0.68% and those with negative aCL results 95.4%. The prevalence of women who were LA positive was 4.1% and 0.9% of the women were positive for both LA and aCL. Of the patients who were LA and/or aCL positive, eight out of 30 patients (26.7%) had a positive pregnancy test in comparison to 61 out of 181 patients (33.7%) who were LA and/or aCL negative (p = 0.5787). CONCLUSION The prevalence of positive aCL and/or LA in infertile women seeking IVF in Jamaica is 7.76%. The presence of these antibodies did not affect the pregnancy rate of these women nor did it demonstrate an increased risk for IVF cycle cancellation or ovarian hyperstimulation syndrome. Screening women undergoing IVF for these antibodies is not justified.
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Ding X, Zheng Y, Mascia A, Hsi W, Kang Y, Ramirez E, Zeidan O, Foster R, Gao M, Laub S, Pankuch M, Schreuder N, Harris B. SU-E-T-301: A Novel Daily QA Device for Proton Therapy. Med Phys 2012; 39:3772-3773. [DOI: 10.1118/1.4735387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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75
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Speiser M, Hager F, Foster R, Solberg T. SU-E-T-267: Construction and Evaluation of a Neutron Wall to Shield a 15 MV Linac in a Low-Energy Vault. Med Phys 2012; 39:3764-3765. [DOI: 10.1118/1.4735334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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