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Pankratova M, Miranda IP, Thonig D, Pereiro M, Sjöqvist E, Delin A, Scheid P, Eriksson O, Bergman A. Coupled atomistic spin-lattice simulations of ultrafast demagnetization in 3d ferromagnets. Sci Rep 2024; 14:8138. [PMID: 38584162 PMCID: PMC10999457 DOI: 10.1038/s41598-024-58662-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 04/02/2024] [Indexed: 04/09/2024] Open
Abstract
Despite decades of research, the role of the lattice and its coupling to the magnetisation during ultrafast demagnetisation processes is still not fully understood. Here we report on studies of both explicit and implicit lattice effects on laser induced ultrafast demagnetisation of bcc Fe and fcc Co. We do this using atomistic spin- and lattice dynamics simulations following a heat-conserving three-temperature model. We show that this type of Langevin-based simulation is able to reproduce observed trends of the ultrafast magnetization dynamics of fcc Co and bcc Fe. The parameters used in our models are all obtained from electronic structure theory, with the exception of the lattice dynamics damping term, where a range of parameters were investigated. It was found that while the explicit spin-lattice coupling in the studied systems does not impact the demagnetisation process notably, the lattice damping has a large influence on the details of the magnetization dynamics. The dynamics of Fe and Co following the absorption of a femtosecond laser pulse are compared with previous results for Ni and similarities and differences in the materials' behavior are analysed. For all elements investigated so far with this model, we obtain a linear relationship between the value of the maximally demagnetized state and the fluence of the laser pulse , which is in agreement with experiments. Moreover, we demonstrate that the demagnetization amplitude is largest for Ni and smallest for Co. This holds over a wide range of the reported electron-phonon couplings, and this demagnetization trend is in agreement with recent experiments.
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Affiliation(s)
- M Pankratova
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden.
| | - I P Miranda
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden.
| | - D Thonig
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
- School of Science and Technology, Örebro University, 701 82, Örebro, Sweden
| | - M Pereiro
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
| | - E Sjöqvist
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
| | - A Delin
- Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, AlbaNova University Center, 10691, Stockholm, Sweden
- Swedish e-Science Research Center (SeRC), KTH Royal Institute of Technology, 10044, Stockholm, Sweden
- Wallenberg Initiative Materials Science for Sustainability (WISE), KTH Royal Institute of Technology, 10044, Stockholm, Sweden
| | - P Scheid
- LPCT, CNRS, UMR 7019, BP 70239, Université de Lorraine, 54506, Vandoeuvre-lés-Nancy Cedex, France
- IJL, CNRS, UMR 7198, BP 70239, Université de Lorraine, 54000, Nancy Cedex, France
| | - O Eriksson
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
- Wallenberg Initiative Materials Science for Sustainability, Uppsala University, 75121, Uppsala, Sweden
| | - A Bergman
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
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Kavanagh KT, Cormier LE, Pontus C, Bergman A, Webley W. Long COVID's Impact on Patients, Workers, & Society: A review. Medicine (Baltimore) 2024; 103:e37502. [PMID: 38518038 PMCID: PMC10957027 DOI: 10.1097/md.0000000000037502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/14/2024] [Indexed: 03/24/2024] Open
Abstract
The incidence of long COVID in adult survivors of an acute SARS-CoV-2 infection is approximately 11%. Of those afflicted, 26% have difficulty with day-to-day activities. The majority of long COIVD cases occur after mild or asymptomatic acute infection. Children can spread SARS-CoV-2 infections and can also develop long-term neurological, endocrine (type I diabetes), and immunological sequelae. Immunological hypofunction is exemplified by the recent large outbreaks of respiratory syncytial virus and streptococcal infections. Neurological manifestations are associated with anatomical brain damage demonstrated on brain scans and autopsy studies. The prefrontal cortex is particularly susceptible. Common symptoms include brain fog, memory loss, executive dysfunction, and personality changes. The impact on society has been profound. Fewer than half of previously employed adults who develop long COVID are working full-time, and 42% of patients reported food insecurity and 20% reported difficulties paying rent. Vaccination not only helps prevent severe COVID-19, but numerous studies have found beneficial effects in preventing and mitigating long COVID. There is also evidence that vaccination after an acute infection can lessen the symptoms of long COVID. Physical and occupational therapy can also help patients regain function, but the approach must be "low and slow." Too much physical or mental activity can result in post-exertional malaise and set back the recovery process by days or weeks. The complexity of long COVID presentations coupled with rampant organized disinformation, have caused significant segments of the public to ignore sound public health advice. Further research is needed regarding treatment and effective public communication.
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Affiliation(s)
| | | | | | | | - Wilmore Webley
- Department of Microbiology, University of Massachusetts Amherst, Amherst, MA
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Cruz-Lim EM, Mou B, Baker S, Arbour G, Stefanyk K, Jiang W, Liu M, Bergman A, Schellenberg D, Alexander A, Berrang T, Bang A, Chng N, Matthews Q, Carolan H, Hsu F, Miller S, Atrchian S, Chan E, Ho C, Mohamed I, Lin A, Huang V, Mestrovic A, Hyde D, Lund C, Pai H, Valev B, Lefresne S, Tyldesley S, Olson R. Prospective Longitudinal Assessment of Quality of Life After Stereotactic Ablative Radiotherapy for Oligometastases: Analysis of the Population-based SABR-5 Phase II Trial. Clin Oncol (R Coll Radiol) 2024; 36:148-156. [PMID: 38087705 DOI: 10.1016/j.clon.2023.11.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/11/2023] [Accepted: 11/28/2023] [Indexed: 02/18/2024]
Abstract
AIMS To evaluate longitudinal patient-reported quality of life (QoL) in patients treated with stereotactic ablative radiotherapy (SABR) for oligometastases. MATERIALS AND METHODS The SABR-5 trial was a population-based single-arm phase II study of SABR to up to five sites of oligometastases, conducted in six regional cancer centres in British Columbia, Canada from 2016 to 2020. Prospective QoL was measured using treatment site-specific QoL questionnaires at pre-treatment baseline and at 3, 6, 9, 12, 15, 18, 21, 24, 30 and 36 months after treatment. Patients with bone metastases were assessed with the Brief Pain Inventory (BPI). Patients with liver, adrenal and abdominopelvic lymph node metastases were assessed with the Functional Assessment of Chronic Illness Therapy-Abdominal Discomfort (FACIT-AD). Patients with lung and intrathoracic lymph node metastases were assessed with the Prospective Outcomes and Support Initiative (POSI) lung questionnaire. The two one-sided test procedure was used to assess equivalence between the worst QoL score and the baseline score of individual patients. The mean QoL at all time points was used to determine the trajectory of QoL response after SABR. The proportion of patients with 'stable', 'improved' or 'worsened' QoL was determined for all time points based on standard minimal clinically important differences (MCID; BPI worst pain = 2, BPI functional interference score [FIS] = 0.5, FACIT-AD Trial Outcome Index [TOI] = 8, POSI = 3). RESULTS All enrolled patients with baseline QoL assessment and at least one follow-up assessment were analysed (n = 133). On equivalence testing, the patients' worst QoL scores were clinically different from baseline scores and met MCID (BPI worst pain mean difference: 1.8, 90% confidence interval 1.19 to 2.42]; BPI FIS mean difference: 1.68, 90% confidence interval 1.15 to 2.21; FACIT-AD TOI mean difference: -8.76, 90% confidence interval -11.29 to -6.24; POSI mean difference: -4.61, 90% confidence interval -6.09 to -3.14). However, the mean FIS transiently worsened at 9, 18 and 21 months but eventually returned to stable levels. The mean FACIT and POSI scores also worsened at 36 months, albeit with a limited number of responses (n = 4 and 8, respectively). Most patients reported stable QoL at all time points (range: BPI worst pain 71-82%, BPI FIS 45-78%, FACIT-AD TOI 50-100%, POSI 25-73%). Clinically significant stability, worsening and improvement were seen in 70%/13%/18% of patients at 3 months, 53%/28%/19% at 18 months and 63%/25%/13% at 36 months. CONCLUSIONS Transient decreases in QoL that met MCID were seen between patients' worst QoL scores and baseline scores. However, most patients experienced stable QoL relative to pre-treatment levels on long-term follow-up. Further studies are needed to characterise patients at greatest risk for decreased QoL.
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Affiliation(s)
- E M Cruz-Lim
- University of British Columbia, British Columbia, Canada; BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - B Mou
- University of British Columbia, British Columbia, Canada; BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - S Baker
- University of British Columbia, British Columbia, Canada; BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - G Arbour
- University of British Columbia, British Columbia, Canada
| | - K Stefanyk
- University of British Columbia, British Columbia, Canada
| | - W Jiang
- University of British Columbia, British Columbia, Canada; BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - M Liu
- University of British Columbia, British Columbia, Canada; BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - A Bergman
- University of British Columbia, British Columbia, Canada; BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - D Schellenberg
- University of British Columbia, British Columbia, Canada; BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - A Alexander
- University of British Columbia, British Columbia, Canada; BC Cancer - Victoria, Victoria, British Columbia, Canada
| | - T Berrang
- University of British Columbia, British Columbia, Canada; BC Cancer - Victoria, Victoria, British Columbia, Canada
| | - A Bang
- University of British Columbia, British Columbia, Canada; BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - N Chng
- BC Cancer - Prince George, Prince George, British Columbia, Canada
| | - Q Matthews
- BC Cancer - Prince George, Prince George, British Columbia, Canada
| | - H Carolan
- University of British Columbia, British Columbia, Canada; BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - F Hsu
- University of British Columbia, British Columbia, Canada; BC Cancer - Abbotsford, Abbotsford, British Columbia, Canada
| | - S Miller
- University of British Columbia, British Columbia, Canada; BC Cancer - Prince George, Prince George, British Columbia, Canada
| | - S Atrchian
- University of British Columbia, British Columbia, Canada; BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - E Chan
- University of British Columbia, British Columbia, Canada; BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - C Ho
- University of British Columbia, British Columbia, Canada; BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - I Mohamed
- University of British Columbia, British Columbia, Canada; BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - A Lin
- University of British Columbia, British Columbia, Canada; BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - V Huang
- BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - A Mestrovic
- BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - D Hyde
- University of British Columbia, British Columbia, Canada; BC Cancer - Kelowna, Kelowna, British Columbia, Canada
| | - C Lund
- University of British Columbia, British Columbia, Canada; BC Cancer - Surrey, Surrey, British Columbia, Canada
| | - H Pai
- University of British Columbia, British Columbia, Canada; BC Cancer - Victoria, Victoria, British Columbia, Canada
| | - B Valev
- University of British Columbia, British Columbia, Canada; BC Cancer - Victoria, Victoria, British Columbia, Canada
| | - S Lefresne
- University of British Columbia, British Columbia, Canada; BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - S Tyldesley
- University of British Columbia, British Columbia, Canada; BC Cancer - Vancouver, Vancouver, British Columbia, Canada
| | - R Olson
- University of British Columbia, British Columbia, Canada; BC Cancer - Prince George, Prince George, British Columbia, Canada.
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Cruz-Lim EM, Mou B, Jiang W, Liu M, Bergman A, Schellenberg D, Alexander A, Berrang T, Bang A, Chng N, Matthews Q, Carolan H, Hsu F, Miller S, Atrchian S, Chan E, Ho C, Mohamed I, Lin A, Huang V, Mestrovic A, Hyde D, Lund C, Pai H, Valev B, Lefresne S, Tyldesley S, Olson R, Baker S. Predictors of Quality of Life Decline in Patients with Oligometastases treated with Stereotactic Ablative Radiotherapy: Analysis of the Population-Based SABR-5 Phase II Trial. Clin Oncol (R Coll Radiol) 2024; 36:141-147. [PMID: 38296662 DOI: 10.1016/j.clon.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/15/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024]
Abstract
AIMS Most patients experience stable quality of life (QoL) after stereotactic ablative radiotherapy (SABR) treatment for oligometastases. However, a subset of patients experience clinically relevant declines in QoL on post-treatment follow-up. This study aimed to identify risk factors for QoL decline. MATERIALS AND METHODS The SABR-5 trial was a population-based single-arm phase II study of SABR to up to five sites of oligometastases. Prospective QoL was measured using treatment site-specific tools at pre-treatment baseline and 3, 6, 9, 12, 15, 18, 21, 24, 30 and 36 months after treatment. The time to persistent QoL decline was calculated as the time from SABR to the first decline in QoL score meeting minimum clinically important difference with no improvement to baseline score on subsequent assessments. Univariable and multivariable logistic regression analyses were carried out to determine factors associated with QoL decline. RESULTS One hundred and thirty-three patients were included with a median follow-up of 32 months (interquartile range 25-43). Thirty-five patients (26%) experienced a persistent decline in QoL. The median time until persistent QoL decline was not reached. The cumulative incidence of QoL decline at 2 and 3 years were 22% (95% confidence interval 14.0-29.6) and 40% (95% confidence interval 28.0-51.2), respectively. In multivariable analysis, disease progression (odds ratio 5.23, 95% confidence interval 1.59-17.47, P = 0.007) and adrenal metastases (odds ratio 9.70, 95% confidence interval 1.41-66.93, P = 0.021) were associated with a higher risk of QoL decline. Grade 3 or higher (odds ratio 3.88, 95% confidence interval 0.92-16.31, P = 0.064) and grade 2 or higher SABR-associated toxicity (odds ratio 2.24, 95% confidence interval 0.85-5.91, P = 0.10) were associated with an increased risk of QoL decline but did not reach statistical significance. CONCLUSIONS Disease progression and adrenal lesion site were associated with persistent QoL decline following SABR. The development of grade 3 or higher toxicities was also associated with an increased risk, albeit not statistically significant. Further studies are needed, focusing on the QoL impact of metastasis-directed therapies.
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Affiliation(s)
- E M Cruz-Lim
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Kelowna, British Columbia, Canada
| | - B Mou
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Kelowna, British Columbia, Canada
| | - W Jiang
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Surrey, British Columbia, Canada
| | - M Liu
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Vancouver, British Columbia, Canada
| | - A Bergman
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Vancouver, British Columbia, Canada
| | - D Schellenberg
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Surrey, British Columbia, Canada
| | - A Alexander
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Victoria, British Columbia, Canada
| | - T Berrang
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Victoria, British Columbia, Canada
| | - A Bang
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Vancouver, British Columbia, Canada
| | - N Chng
- BC Cancer - Prince George, British Columbia, Canada
| | - Q Matthews
- BC Cancer - Prince George, British Columbia, Canada
| | - H Carolan
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Vancouver, British Columbia, Canada
| | - F Hsu
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Abbotsford, British Columbia, Canada
| | - S Miller
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Prince George, British Columbia, Canada
| | - S Atrchian
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Kelowna, British Columbia, Canada
| | - E Chan
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Vancouver, British Columbia, Canada
| | - C Ho
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Surrey, British Columbia, Canada
| | - I Mohamed
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Kelowna, British Columbia, Canada
| | - A Lin
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Kelowna, British Columbia, Canada
| | - V Huang
- BC Cancer - Surrey, British Columbia, Canada
| | - A Mestrovic
- BC Cancer - Vancouver, British Columbia, Canada
| | - D Hyde
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Kelowna, British Columbia, Canada
| | - C Lund
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Surrey, British Columbia, Canada
| | - H Pai
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Victoria, British Columbia, Canada
| | - B Valev
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Victoria, British Columbia, Canada
| | - S Lefresne
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Vancouver, British Columbia, Canada
| | - S Tyldesley
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Vancouver, British Columbia, Canada
| | - R Olson
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Prince George, British Columbia, Canada
| | - S Baker
- University of British Columbia, Vancouver, British Columbia, Canada; BC Cancer - Surrey, British Columbia, Canada.
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Camborde ML, Karan T, Horwood R, Mestrovic A, Bergman A. Evaluation of Patient-Specific Quality Control (QC) for Markerless Dynamic Tumor Tracking (MDTT) Deliveries. Int J Radiat Oncol Biol Phys 2023; 117:e647. [PMID: 37785925 DOI: 10.1016/j.ijrobp.2023.06.2065] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To report on the patient-specific QC for MDTT for liver and lung tumors treated using the dome-of-liver/diaphragm as a surrogate for the target position and compare to the QC of conventional fiducial-based tracking. MATERIALS/METHODS Vero4DRT is a linear accelerator that has a gimbal-mounted waveguide and collimation system allowing the radiation beam to perform dynamic tumor tracking based on a patient's respiratory motion. A correlation model is built between an external IR marker placed on the chest and an internal structure, which may be implanted fiducial surrogates or in the case of MDTT, an anatomic landmark. During treatment an orthogonal kV image pair is taken every second. The auto detected internal structure position versus the predicted position is recorded in treatment log files. Five IMRT tracking plans were delivered to two commercial motion phantoms with in-house additions for patient-specific tracking QC. For point dose measurements, a 0.6cc farmer chamber was placed inside the dynamic tracking phantom which contains fiducials for fiducial-based tracking delivery and an anatomic landmark for MDTT. For 2D dose distribution measurements, a radiographic film insert for the Quasar Respiratory Motion Phantom was constructed. The phantom contains both fiducials and has a liver-dome shape at one end to facilitate MDTT. Both motion platforms were interfaced with software that enabled patient-specific respiratory motion traces acquired during a 4DCT scan. Each plan was delivered three times on each phantom: 1) in static mode, 2) during fiducial-based tracking, and 3) during MDTT. Chamber measurements taken during static and tracked delivery were compared to the average chamber dose from the treatment planning software (TPS). Film distributions measured during tracked deliveries were compared to the static film distribution using gamma analysis with FILMQA PRO software. Finally, dynamic tracking treatment statistics, extracted from log files, were compared between fiducial and markerless tracking deliveries. RESULTS All chamber measurements resulted in dose differences <2.5% compared with the TPS. Dose differences between fiducial-based and MDTT were 0.26% on average (range 0.03-0.62%). For film dose map analysis, gamma pass rates were >95% for all plans for all tracking methods. The average gamma pass rate for 3%/3mm was 99.4% (fiducial-based) vs 98.4% (markerless). For 2%/2mm, the average gamma pass rate was 96.4% (fiducial-based tracking) vs 95.6% (MDTT). Dynamic treatment statistics from logs files reported an average 3D absolute deviation from predicted position of 0.52mm (±0.24) for fiducial tracking and 1.19mm (±0.50) for MDTT. CONCLUSION Both fiducial-based and MDTT plans meet passing criteria for patient-specific QC. 3D absolute deviation of detected versus predicted position are larger for MDTT compared to fiducial tracking, however no significant impact on dose delivery was measured.
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Affiliation(s)
| | - T Karan
- BC Cancer, Vancouver, BC, Canada
| | | | | | - A Bergman
- BC Cancer Vancouver, Vancouver, BC, Canada
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Cruz-Lim EM, Mou B, Baker S, Arbour G, Stefanyk K, Jiang W, Liu M, Bergman A, Schellenberg D, Alexander AS, Berrang T, Bang A, Chng N, Matthews Q, Tyldesley S, Olson RA. Prospective Longitudinal Assessment of Quality of Life after Stereotactic Ablative Radiotherapy for Oligometastases: Analysis of the Population-Based SABR-5 Phase II Trial. Int J Radiat Oncol Biol Phys 2023; 117:e224-e225. [PMID: 37784911 DOI: 10.1016/j.ijrobp.2023.06.1131] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To evaluate longitudinal patient-reported quality of life (QoL) in patients treated with stereotactic ablative radiotherapy (SABR) for oligometastases. MATERIALS/METHODS The SABR-5 trial was a population-based single-arm phase II study of SABR to up to 5 sites of oligometastases, conducted in 6 regional cancer centers in British Columbia from 2016 to 2020. Prospective QoL was measured using treatment site-specific QoL questionnaires at pre-treatment baseline and 3, 6, 9, 12, 15, 18, 21, 24, 30, and 36 months after treatment. Patients with bone metastases were assessed with the Brief Pain Inventory (BPI). Patients with liver, adrenal, and abdominopelvic lymph node metastases were assessed with the Functional Assessment of Chronic Illness Therapy-Abdominal Discomfort (FACIT-AD). Patients with lung and intrathoracic lymph node metastases were assessed with the Prospective Outcomes and Support Initiative (POSI) lung questionnaire. The two one-sided test procedure was used to assess equivalence between the worst QoL score and baseline score of individual patients. Mean QoL at all time points was used to determine the trajectory of QoL response after SABR. The proportion of patients with "stable," "improved," or "worsened" QoL was determined for all time points based on standard minimal clinically important differences (MCID; BPI worst pain = 2, BPI Functional Interference Score [FIS] = 0.5, FACIT-AD Trial Outcome Index [TOI] = 8, POSI = 3). RESULTS All enrolled patients with baseline QoL assessment and at least 1 follow-up assessment were analyzed (n = 135). On equivalence testing, patients' worst QoL scores were clinically different from baseline scores and met MCID (BPI worst pain mean difference: 1.8, 90% CI [1.19 to 2.42]; BPI FIS mean difference: 1.68, 90% CI [1.15 to 2.21]; FACIT-AD TOI mean difference: -8.76, 90% CI [-11.29 to -6.24]; POSI mean difference: -4.61, 90% CI [-6.09 to -3.14]). However, the mean FIS transiently worsened at 9, 18 and 21 months but eventually returned to stable levels. The mean FACIT and POSI scores also worsened at 36 months, albeit with a limited number of responses (n = 4 and 8, respectively). The majority of patients reported stable QoL at all time points (range: BPI worst pain 71-82%, BPI FIS 45-78%, FACIT-AD TOI 50-100%, POSI 25-73%). Clinically significant stability, worsening, and improvement were seen in 70%/13%/18% of patients at 3 months, 53%/28%/19% at 18 months and 63%/25%/13% at 36 months. CONCLUSION SABR in the oligometastatic setting can lead to transient decreases in QoL. However, most patients experienced stable QoL relative to pre-treatment levels on long-term follow-up. Further studies are needed to characterize patients at greatest risk for decreased QoL.
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Affiliation(s)
- E M Cruz-Lim
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Kelowna, Kelowna, BC, Canada
| | - B Mou
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Kelowna, Kelowna, BC, Canada
| | - S Baker
- University of British Columbia, Vancouver, BC, Canada; BC Cancer - Surrey, Surrey, BC, Canada
| | - G Arbour
- University of British Columbia, Vancouver, BC, Canada
| | - K Stefanyk
- University of British Columbia, Vancouver, BC, Canada
| | - W Jiang
- University of British Columbia, Vancouver, BC, Canada; BC Cancer - Surrey, Surrey, BC, Canada
| | - M Liu
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Vancouver, Vancouver, BC, Canada
| | - A Bergman
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Vancouver, Vancouver, BC, Canada
| | - D Schellenberg
- University of British Columbia, Vancouver, BC, Canada; BC Cancer - Surrey, Surrey, BC, Canada
| | - A S Alexander
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Victoria, Victoria, BC, Canada
| | - T Berrang
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Victoria, Victoria, BC, Canada
| | - A Bang
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Vancouver, Vancouver, BC, Canada
| | - N Chng
- BC Cancer - Prince George, Prince George, BC, Canada
| | - Q Matthews
- BC Cancer - Prince George, Prince George, BC, Canada
| | - S Tyldesley
- University of British Columbia, Vancouver, BC, Canada; BC Cancer Vancouver, Vancouver, BC, Canada
| | - R A Olson
- University of British Columbia, Vancouver, BC, Canada; BC Cancer - Prince George, Prince George, BC, Canada
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Jiang W, Baker S, Liu M, Bergman A, Schellenberg D, Mou B, Alexander A, Carolan H, Atrchian S, Chan E, Mohamed I, Berrang T, Bang A, Chng N, Matthews Q, Pai H, Lefresne S, Tyldesley S, Olson R. Population Based Phase II Trial of Stereotactic Ablative Radiotherapy (SABR): Overall Survival Results of the SABR-5 Trial. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.621] [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: 10/31/2022]
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Baker S, Mou B, Jiang W, Liu M, Bergman A, Schellenberg D, Alexander A, Carolan H, Atrchian S, Berrang T, Bang A, Chng N, Matthews Q, Tyldesley S, Olson R. Validation of the Prognostic Utility of ESTRO/EORTC Oligometastatic Disease Classification: A Secondary Analysis from the Population-Based Phase II SABR-5 Trial. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.386] [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: 10/31/2022]
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Van Oirschot M, Bergman A, Verbakel W, Ward L, Gagne I, Huang V, Chng N, Houston P, Symes K, Thomas C, Basran P, Bowes D, Harrow S, Olson R, Senan S, Warner A, Palma D, Gaede S. Does Compromising Target Coverage Impact Overall Survival when Treating Oligometastatic Disease with Stereotactic Ablative Radiotherapy (SABR)? Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Baker S, Mou B, Jiang W, Liu M, Bergman A, Schellenberg D, Alexander A, Carolan H, Atrchian S, Berrang T, Bang A, Chng N, Matthews Q, Tyldesley S, Olson R. Predictors of Early Polymetastatic Relapse Following Stereotactic Ablative Radiotherapy for up to 5 Oligometastases: A Secondary Analysis of the Phase II SABR-5 Trial. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.387] [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: 11/30/2022]
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Mohamed MA, Bergman A, Abdelatif D, Massa-Buck B. A Dose-Limited Dexamethasone and Bubble Continuous Positive Airway Pressure in Ventilation-Dependent Extremely Premature Infants. Am J Perinatol 2022. [PMID: 35981559 DOI: 10.1055/a-1927-0619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
OBJECTIVE Dexamethasone has been associated with early extubation and shorter duration of mechanical ventilation in preterm infants. High doses or prolonged courses of dexamethasone may be associated with poor neurodevelopmental outcomes. STUDY DESIGN This is an observational cohort study assessing the efficacy of a low-dose short dexamethasone course combined with postextubation bubble continuous positive airway pressure (bCPAP) strategy on rates of successful extubation and reduction of the duration of invasive mechanical ventilation in extremely preterm infants. We compared the short-term outcomes of implementing such strategy on a group of infants with birth weight <750 g to a historical cohort. RESULTS Among infants intubated for at least 10 days, median time to extubation from starting the dexamethasone course was 2 days (interquartile range: 1-3). Total duration of intubation was significantly shorter in infants who received dexamethasone compared with the control groups (21 ± 6 vs. 30 ± 10 days, p = 0.03), and although statistically nonsignificant, duration to wean to 21% bCPAP was shorter compared with the control group (48 ± 13 vs. 74 ± 29 days, p = 0.06). CONCLUSION A low-dose short dexamethasone course combined with postextubation bCPAP intervention may be associated with successful early extubation and shorter duration of mechanical ventilation. KEY POINTS · Noninvasive strategies may not succeed in infants < 750 g birth weight.. · Bubble CPAP has been shown to be associated with reduced complications including chronic lung disease.. · Postnatal dexamethasone therapy may succeed in conjunction with bubble CPAP to reduce reintubation..
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Affiliation(s)
- Mohamed A Mohamed
- Newborn Services Division, the George Washington University Hospital, Washington, District of Columbia
- Department of Neonatology, Cleveland Clinic Children's, Cleveland, Ohio
| | - Aaron Bergman
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, Washington, District of Columbia
- Department of Health, State of Maryland, Baltimore, Maryland
| | - Dinan Abdelatif
- Newborn Services Division, the George Washington University Hospital, Washington, District of Columbia
- Department of Obstetrics and Gynecology, the George Washington University Hospital, Washington, District of Columbia
| | - Beri Massa-Buck
- Newborn Services Division, the George Washington University Hospital, Washington, District of Columbia
- Division of Neonatology, Children's National Medical Center, Washington, District of Columbia
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12
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Longchamps RJ, Yang SY, Castellani CA, Shi W, Lane J, Grove ML, Bartz TM, Sarnowski C, Liu C, Burrows K, Guyatt AL, Gaunt TR, Kacprowski T, Yang J, De Jager PL, Yu L, Bergman A, Xia R, Fornage M, Feitosa MF, Wojczynski MK, Kraja AT, Province MA, Amin N, Rivadeneira F, Tiemeier H, Uitterlinden AG, Broer L, Van Meurs JBJ, Van Duijn CM, Raffield LM, Lange L, Rich SS, Lemaitre RN, Goodarzi MO, Sitlani CM, Mak ACY, Bennett DA, Rodriguez S, Murabito JM, Lunetta KL, Sotoodehnia N, Atzmon G, Ye K, Barzilai N, Brody JA, Psaty BM, Taylor KD, Rotter JI, Boerwinkle E, Pankratz N, Arking DE. Genome-wide analysis of mitochondrial DNA copy number reveals loci implicated in nucleotide metabolism, platelet activation, and megakaryocyte proliferation. Hum Genet 2022; 141:127-146. [PMID: 34859289 PMCID: PMC8758627 DOI: 10.1007/s00439-021-02394-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 10/22/2021] [Indexed: 12/18/2022]
Abstract
Mitochondrial DNA copy number (mtDNA-CN) measured from blood specimens is a minimally invasive marker of mitochondrial function that exhibits both inter-individual and intercellular variation. To identify genes involved in regulating mitochondrial function, we performed a genome-wide association study (GWAS) in 465,809 White individuals from the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) consortium and the UK Biobank (UKB). We identified 133 SNPs with statistically significant, independent effects associated with mtDNA-CN across 100 loci. A combination of fine-mapping, variant annotation, and co-localization analyses was used to prioritize genes within each of the 133 independent sites. Putative causal genes were enriched for known mitochondrial DNA depletion syndromes (p = 3.09 × 10-15) and the gene ontology (GO) terms for mtDNA metabolism (p = 1.43 × 10-8) and mtDNA replication (p = 1.2 × 10-7). A clustering approach leveraged pleiotropy between mtDNA-CN associated SNPs and 41 mtDNA-CN associated phenotypes to identify functional domains, revealing three distinct groups, including platelet activation, megakaryocyte proliferation, and mtDNA metabolism. Finally, using mitochondrial SNPs, we establish causal relationships between mitochondrial function and a variety of blood cell-related traits, kidney function, liver function and overall (p = 0.044) and non-cancer mortality (p = 6.56 × 10-4).
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Affiliation(s)
- R J Longchamps
- Department of Genetic Medicine, McKusick-Nathans Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - S Y Yang
- Department of Genetic Medicine, McKusick-Nathans Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C A Castellani
- Department of Genetic Medicine, McKusick-Nathans Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Pathology and Laboratory Medicine, Western University, London, ON, Canada
| | - W Shi
- Department of Genetic Medicine, McKusick-Nathans Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J Lane
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - M L Grove
- Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, Human Genetics Center, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - T M Bartz
- Cardiovascular Health Research Unit, Departments of Medicine and Biostatistics, University of Washington, Seattle, WA, USA
| | - C Sarnowski
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - C Liu
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - K Burrows
- MRC Integrative Epidemiology Unit at the University of Bristol, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
| | - A L Guyatt
- Department of Health Sciences, University of Leicester, University Road, Leicester, UK
| | - T R Gaunt
- MRC Integrative Epidemiology Unit at the University of Bristol, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
| | - T Kacprowski
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
- Data Science in Biomedicine, Peter L. Reichertz Institute for Medical Informatics, TU Braunschweig and Hannover Medical School, Brunswick, Germany
| | - J Yang
- Rush Alzheimer's Disease Center and Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA
| | - P L De Jager
- Center for Translational and Systems Neuroimmunology, Department of Neurology, Columbia University Medical Center, New York, NY, USA
- Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
| | - L Yu
- Rush Alzheimer's Disease Center and Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA
| | - A Bergman
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - R Xia
- Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - M Fornage
- Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Human Genetics Center, The University of Texas Health Science Center at Houston, Houston, USA
| | - M F Feitosa
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, USA
| | - M K Wojczynski
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, USA
| | - A T Kraja
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, USA
| | - M A Province
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, USA
| | - N Amin
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - F Rivadeneira
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - H Tiemeier
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Social and Behavioral Science, Harvard T.H. School of Public Health, Boston, USA
| | - A G Uitterlinden
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - L Broer
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - J B J Van Meurs
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - C M Van Duijn
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - L M Raffield
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - L Lange
- Department of Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - S S Rich
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA, USA
| | - R N Lemaitre
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA
| | - M O Goodarzi
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - C M Sitlani
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA
| | - A C Y Mak
- Cardiovascular Research Institute and Institute for Human Genetics, University of California, San Francisco, CA, USA
| | - D A Bennett
- Rush Alzheimer's Disease Center and Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA
| | - S Rodriguez
- MRC Integrative Epidemiology Unit at the University of Bristol, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK
| | - J M Murabito
- Boston University School of Medicine, Boston University, Boston, MA, USA
| | - K L Lunetta
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - N Sotoodehnia
- Cardiovascular Health Research Unit, Division of Cardiology, University of Washington, Seattle, WA, USA
| | - G Atzmon
- Department of Natural Science, University of Haifa, Haifa, Israel
- Departments of Medicine and Genetics, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - K Ye
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - N Barzilai
- Departments of Medicine and Genetics, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - J A Brody
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA
| | - B M Psaty
- Cardiovascular Health Research Unit, Departments of Epidemiology, Medicine and Health Services, University of Washington, Seattle, WA, USA
| | - K D Taylor
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - J I Rotter
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - E Boerwinkle
- Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, Human Genetics Center, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Baylor College of Medicine, Human Genome Sequencing Center, Houston, TX, USA
| | - N Pankratz
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - D E Arking
- Department of Genetic Medicine, McKusick-Nathans Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Olson R, Jiang W, Liu M, Bergman A, Schellenberg D, Mou B, Alexander A, Carolan H, Hsu F, Miller S, Atrchian S, Chan E, Ho C, Mohamed I, Lin A, Berrang T, Bang A, Chng N, Matthews Q, Huang V, Mestrovic T, Hyde D, Lund C, Pai H, Valev B, Lefresne S, Tyldesley S. Population Based Phase II Trial of Stereotactic Ablative Radiotherapy (SABR) for up to 5 Oligometastases: Preliminary Results of the SABR-5 Trial. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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McNabb KC, Bergman A, Farley JE. Risk factors for poor engagement in drug-resistant TB care in South Africa: a systematic review. Public Health Action 2021; 11:139-145. [PMID: 34567990 PMCID: PMC8455023 DOI: 10.5588/pha.21.0007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/18/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Metrics of poor patient engagement, including missed appointments, treatment interruption, sub-optimal medication adherence, and loss to follow-up, have been linked to poor clinical multidrug-resistant TB (MDR-TB) outcomes. Understanding the risk factors for poor patient engagement is necessary to improve outcomes and control TB. This review synthesizes the risk factors for poor patient engagement in MDR-TB treatment across South Africa. DESIGN A systematic review of five databases (PubMed, Embase, CINAHL, Cochrane, and Web of Science) was conducted, covering articles published between 2010 and 2020. Articles were included if they provided information about risk factors associated with poor engagement among adults (⩾15 years) in treatment for MDR-TB in South Africa. Reviews, editorials, abstracts, and case studies were excluded. RESULTS Six studies met the inclusion criteria. Male sex and younger age were the most consistently identified risk factors for poor engagement; however, there was a lack of consistency in the choice of covariates, measurement of the variables, analytic methods, and significant factors associated with poor engagement between studies. Alcohol use, substance use, living with HIV, pulmonary TB site, and ethnicity were all identified as risk factors in at least one included study, while formal housing and steady employment were found to be protective. CONCLUSION The available literature offers little cohesive data to address poor patient engagement in this population. Further research needs to focus on identifying and addressing risk factors for poor patient engagement. This is particularly salient within the context of newer all-oral and short-course MDR-TB treatment regimens.
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Affiliation(s)
- K C McNabb
- Johns Hopkins University School of Nursing, Baltimore, MD, USA
| | - A Bergman
- Johns Hopkins University School of Nursing, Baltimore, MD, USA
| | - J E Farley
- Johns Hopkins University School of Nursing, Baltimore, MD, USA
- REACH Initiative, Johns Hopkins University School of Nursing, Baltimore, MD, USA
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15
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Rehder K, Eddy A, Kaplan J, Bergman A, Christopher M. The Relationships Between Reduced Alcohol Use and Decreased Burnout Following Mindfulness-Based Resilience Training in Law Enforcement Officers. J Altern Complement Med 2021; 27:984-990. [PMID: 34516760 DOI: 10.1089/acm.2021.0052] [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: 11/12/2022] Open
Abstract
Objective: This study is a secondary analysis of data collected in an earlier clinical trial of mindfulness-based resilience training (MBRT) (ClinicalTrials.gov registration number 02521454), where the MBRT condition demonstrated a significant reduction in self-reported burnout and trend-level reductions in alcohol use in law enforcement officers (LEOs). Given that MBRT is not designed to be a substance use intervention and does not contain explicit substance-related content, this study sought to clarify these findings by exploring whether improved burnout mediates reduced alcohol use. Method: Participants (n = 61) were sworn LEOs (89% male, 85% White, 8% Hispanic/Latinx) recruited from departments in a large urban metro area of the northwestern United States, and were randomized to either MBRT (n = 31) or no intervention control group (n = 30) during the trial. Results: MBRT group assignment predicted reduced burnout (b = 0.43, standard error [SE] = 0.14, p = 0.004), which subsequently predicted reduced alcohol use (b = 1.69, SE = 0.81, p = 0.045). Results suggest that reduced alcohol use was indirectly related to a reduction in burnout post-MBRT. Conclusion: Given that MBRT does not explicitly address substance use, these findings were interpreted to suggest that officers in the training acquired a new set of coping skills to deal with the operational and organizational stressors of police work.
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Affiliation(s)
- Kristoffer Rehder
- School of Graduate Psychology, Pacific University, Hillsboro, OR, USA
| | - Ashley Eddy
- School of Graduate Psychology, Pacific University, Hillsboro, OR, USA
| | - Josh Kaplan
- School of Graduate Psychology, Pacific University, Hillsboro, OR, USA
| | - Aaron Bergman
- School of Graduate Psychology, Pacific University, Hillsboro, OR, USA
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16
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Bergman A. Introducing the HERA Core Agenda for the European Environment, Climate & Health Research. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00293-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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de Vries MR, Ewing MM, de Jong RCM, MacArthur MR, Karper JC, Peters EAB, Nordzell M, Karabina SAP, Sexton D, Dahlbom I, Bergman A, Mitchell JR, Frostegård J, Kuiper J, Ninio E, Jukema JW, Pettersson K, Quax PHA. Identification of IgG1 isotype phosphorylcholine antibodies for the treatment of inflammatory cardiovascular diseases. J Intern Med 2021; 290:141-156. [PMID: 33342002 PMCID: PMC8359267 DOI: 10.1111/joim.13234] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/23/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Phosphorylcholine (PC) is an important pro-inflammatory damage-associated molecular pattern. Previous data have shown that natural IgM anti-PC protects against cardiovascular disease. We aimed to develop a monoclonal PC IgG antibody with anti-inflammatory and anti-atherosclerotic properties. METHODS Using various techniques PC antibodies were validated and optimized. In vivo testing was performed in a femoral artery cuff model in ApoE3*Leiden mice. Safety studies are performed in rats and cynomolgus monkeys. RESULTS A chimeric anti-PC (PC-mAb(T15), consisting of a human IgG1 Fc and a mouse T15/E06 Fab) was produced, and this was shown to bind specifically to epitopes in human atherosclerotic tissues. The cuff model results in rapid induction of inflammatory genes and altered expression of genes associated with ER stress and choline metabolism in the lesions. Treatment with PC-mAb(T15) reduced accelerated atherosclerosis via reduced expression of endoplasmic reticulum stress markers and CCL2 production. Recombinant anti-PC Fab fragments were identified by phage display and cloned into fully human IgG1 backbones creating a human monoclonal IgG1 anti-PC (PC-mAbs) that specifically bind PC, apoptotic cells and oxLDL. Based on preventing macrophage oxLDL uptake and CCL2 production, four monoclonal PC-mAbs were selected, which to various extent reduced vascular inflammation and lesion development. Additional optimization and validation of two PC-mAb antibodies resulted in selection of PC-mAb X19-A05, which inhibited accelerated atherosclerosis. Clinical grade production of this antibody (ATH3G10) significantly attenuated vascular inflammation and accelerated atherosclerosis and was tolerated in safety studies in rats and cynomolgus monkeys. CONCLUSIONS Chimeric anti-PCs can prevent accelerated atherosclerosis by inhibiting vascular inflammation directly and through reduced macrophage oxLDL uptake resulting in decreased lesions. PC-mAb represents a novel strategy for cardiovascular disease prevention.
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Affiliation(s)
- M. R. de Vries
- From theDeptartment of SurgeryLUMCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLUMCLeidenThe Netherlands
| | - M. M. Ewing
- From theDeptartment of SurgeryLUMCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLUMCLeidenThe Netherlands
- Deptartment of CardiologyLUMCLeidenThe Netherlands
| | - R. C. M. de Jong
- From theDeptartment of SurgeryLUMCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLUMCLeidenThe Netherlands
| | - M. R. MacArthur
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMAUSA
| | - J. C. Karper
- From theDeptartment of SurgeryLUMCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLUMCLeidenThe Netherlands
| | - E. A. B. Peters
- From theDeptartment of SurgeryLUMCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLUMCLeidenThe Netherlands
| | | | - S. A. P. Karabina
- INSERM UMR_S 933Hôpital Armand‐TrousseauSorbonne UniversitéParisFrance
| | | | - I. Dahlbom
- Dept. of MedicineKarolinska University Hospital Huddinge and Karolinska InstitutetStockholmSweden
| | | | - J. R. Mitchell
- Department of Molecular MetabolismHarvard T.H. Chan School of Public HealthBostonMAUSA
| | - J. Frostegård
- Dept. of MedicineKarolinska University Hospital Huddinge and Karolinska InstitutetStockholmSweden
| | - J. Kuiper
- Division of BioTherapeuticsLACDRLeidenThe Netherlands
| | - E. Ninio
- INSERM UMR_S 1166‐ICANGenomics and Pathophysiology of Cardiovascular DiseasesInstitute of Cardiometabolism and NutritionPitié‐Salpêtrière HôpitalSorbonne UniversitéParisFrance
| | - J. W. Jukema
- Einthoven Laboratory for Experimental Vascular MedicineLUMCLeidenThe Netherlands
- Deptartment of CardiologyLUMCLeidenThe Netherlands
| | | | - P. H. A. Quax
- From theDeptartment of SurgeryLUMCLeidenThe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLUMCLeidenThe Netherlands
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Mallik D, Kaplan J, Somohano V, Bergman A, Bowen S. Examining the Role of Craving, Mindfulness, and Psychological Flexibility in a Sample of Individuals with Substance Use Disorder. Subst Use Misuse 2021; 56:782-786. [PMID: 33769196 DOI: 10.1080/10826084.2021.1899220] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Substance Use Disorder (SUD) continues to represent a significant public health crisis in the United States. Purpose: Novel and effective treatments are needed, and third wave behavioral approaches focused on increasing mindfulness and psychological flexibility appear promising. However, the unique and shared impact of mindfulness and psychological flexibility on substance craving is not well understood. Methods: The current study explores how mindfulness and psychological flexibility predict substance craving while controlling for severity of substance dependence in a sample (N = 284) of treatment-seeking adults with SUD. Results and Discussion: Results suggest that mindfulness and psychological flexibility each account for unique variance in substance craving over and above the other. Implications and limitations are discussed.
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Affiliation(s)
- Debesh Mallik
- Pacific University, School of Graduate Psychology, Hillsboro, Oregon, USA
| | - Josh Kaplan
- Oregon Health and Science University, Portland, Oregon, USA
| | - Vanessa Somohano
- Veterans Administration Portland Health Care System, Portland, Oregon, USA
| | - Aaron Bergman
- Pacific University, School of Graduate Psychology, Hillsboro, Oregon, USA
| | - Sarah Bowen
- Pacific University, School of Graduate Psychology, Hillsboro, Oregon, USA
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Byatt N, Mittal L, Brenckle L, Logan D, Masters G, Bergman A, Moore Simas T. Lifeline4Moms Perinatal Mental Health Toolkit. ACTA ACUST UNITED AC 2019. [DOI: 10.7191/pib.1140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This toolkit provides actionable information, algorithms, and clinical pearls so that obstetric providers and practices can successfully address perinatal mental health conditions.
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Moustakis C, Chan M, Kim J, Nilsson J, Bergman A, Bichay T, Cilla S, Deodato F, Doro R, Eich H, Fau P, Fong M, Haverkamp U, Heinze S, Köhn J, de Klerck E, Lambrecht U, Masi L, Mayville A, Morganti A, Milder M, Rades D, Ramm U, Ryu S, Soltys S, Tazeh Maha FE, Toom WD, Wang L, Blanck O. A Multi-Platform Treatment Planning Benchmark Study for Spinal Radiosurgery. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Olson R, Liu M, Bergman A, Lam S, Hsu F, Mou B, Berrang T, Mestrovic A, Chng N, Hyde D, Matthews Q, Lund C, Glick D, Pai H, Basran P, Carolan H, Valev B, Tyldesley S, Schellenberg D. EP-1616 Population-based Phase II Trial of Stereotactic Radiotherapy for up to 5 Oligometastases: SABR-5. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32036-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Mehra N, van Riet J, Smits M, Westdorp H, Gorris M, van Ee T, van der Doelen M, van Oort I, Sedelaar M, Textor J, Cuppen E, Grunberg K, Ligtenberg M, Zwart W, Bergman A, van de Werken H, Schalken J, de Vries I, Lolkema M, Gerritsen W. In-depth assessment of metastatic prostate cancer with high tumour mutational burden. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Westgeest H, Kuppen M, van den Eertwegh A, Van Moorselaar J, Mehra N, van Oort I, van den Bergh A, Coenen J, Aben K, Somford R, de Wit R, Bergman A, Lavalaye J, Uyl-de Groot C, Gerritsen W. Cabazitaxel treatment in metastatic castration-resistant prostate cancer (mCRPC) clinical trials compared to usual care in CAPRI: An observational study in the Netherlands. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.026] [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: 11/13/2022] Open
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Louhanepessy R, Badrising S, Vd Noort V, Coenen J, Oostdijk A, Hamberg P, Zuetenhorst J, Beeker A, Wagenaar N, Lam M, Celik F, Vegt E, Zwart W, Bergman A. Pain and quality of life in metastasized Castration Resistant Prostate Cancer patients treated with Radium-223 (ROTOR registry): A prospective observational registry in a non-study population. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.038] [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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Kuppen M, Westgeest H, van den Eertwegh A, Van Moorselaar J, Mehra N, van Oort I, van den Bergh A, Coenen J, Aben K, Somford R, Lavalaye J, Bergman A, Uyl-de Groot C, Gerritsen W. Symptomatic skeletal related events (SSE) and SSE-free-survival in real world castration-resistant prostate cancer (CRPC) patients: Results from CAPRI. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.024] [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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26
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Beaton L, Bergman A, Nichol A, Weir L, Tyldesley S. Do Women Who Died of Cardiac Disease Within 10 Years of Breast or Chest Wall Radiation Therapy Violate the “QUANTEC” Cardiac Dose-Volume Histogram Guidelines? Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Stefánsson T, Bergman A, Ekbom A, Nyman R, Påhlman L. Accuracy of Double Contrast Barium Enema and Sigmoideoscopy in the Detection of Polyps in Patients with Diverticulosis. Acta Radiol 2016. [DOI: 10.1177/028418519403500509] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The sensitivity between double contrast barium enema (DCBE) and sigmoideoscopy in diagnosing neoplastic lesions in the sigmoid colon was compared in patients with diverticulosis. In 52 patients with severe diverticulosis (≥15 diverticulas) the DCBE detected one out of 4 polyps found by sigmoideoscopy. In the remaining 54 patients with mild diverticulosis (<15 diverticulas) DCBE detected 7 out of 10 polyps found by sigmoideoscopy. Successful bowel preparation did not influence the outcome of the DCBE. Sigmoideoscopy was incomplete in 17 (16%) of the patients; females were more difficult to examine than males (p= 0.012), as were those with a previous pelvic operation (p= 0.032). We conclude that neither DCBE nor sigmoideoscopy alone is sufficient to detect all neoplastic lesions in the sigmoid colon in patients with sigmoid diverticulosis of the colon.
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Dussaux A, Schoenherr P, Koumpouras K, Chico J, Chang K, Lorenzelli L, Kanazawa N, Tokura Y, Garst M, Bergman A, Degen CL, Meier D. Local dynamics of topological magnetic defects in the itinerant helimagnet FeGe. Nat Commun 2016; 7:12430. [PMID: 27535899 PMCID: PMC4992142 DOI: 10.1038/ncomms12430] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [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: 01/04/2016] [Accepted: 07/01/2016] [Indexed: 11/24/2022] Open
Abstract
Chiral magnetic interactions induce complex spin textures including helical and conical spin spirals, as well as particle-like objects such as magnetic skyrmions and merons. These spin textures are the basis for innovative device paradigms and give rise to exotic topological phenomena, thus being of interest for both applied and fundamental sciences. Present key questions address the dynamics of the spin system and emergent topological defects. Here we analyse the micromagnetic dynamics in the helimagnetic phase of FeGe. By combining magnetic force microscopy, single-spin magnetometry and Landau–Lifschitz–Gilbert simulations we show that the nanoscale dynamics are governed by the depinning and subsequent motion of magnetic edge dislocations. The motion of these topologically stable objects triggers perturbations that can propagate over mesoscopic length scales. The observation of stochastic instabilities in the micromagnetic structure provides insight to the spatio-temporal dynamics of itinerant helimagnets and topological defects, and discloses open challenges regarding their technological usage. Topological defects may strongly influence the evolution of a materials' micromagnetic structure whilst their manipulation forms the basis for emerging technological concepts. Here, the authors study the depinning and motion of magnetic edge dislocations in the domain structure of helimagnetic FeGe.
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Affiliation(s)
- A Dussaux
- Department of Physics, ETH Zürich, Otto Stern Weg 1, Zurich 8093, Switzerland
| | - P Schoenherr
- Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 4, Zurich 8093, Switzerland
| | - K Koumpouras
- Department of Physics and Astronomy, Uppsala University, PO Box 516, Uppsala 75120, Sweden
| | - J Chico
- Department of Physics and Astronomy, Uppsala University, PO Box 516, Uppsala 75120, Sweden
| | - K Chang
- Department of Physics, ETH Zürich, Otto Stern Weg 1, Zurich 8093, Switzerland
| | - L Lorenzelli
- Department of Physics, ETH Zürich, Otto Stern Weg 1, Zurich 8093, Switzerland
| | - N Kanazawa
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - Y Tokura
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - M Garst
- Institute for Theoretical Physics, Universität zu Köln, Köln D-50937, Germany
| | - A Bergman
- Department of Physics and Astronomy, Uppsala University, PO Box 516, Uppsala 75120, Sweden
| | - C L Degen
- Department of Physics, ETH Zürich, Otto Stern Weg 1, Zurich 8093, Switzerland
| | - D Meier
- Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 4, Zurich 8093, Switzerland.,Department of Materials Science and Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway
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Bergman A, Langer T, Tur M. High spatial resolution, low-noise Brillouin dynamic gratings reflectometry based on digital pulse compression. Opt Lett 2016; 41:3643-3646. [PMID: 27472639 DOI: 10.1364/ol.41.003643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Digital pulse compression was used to enhance the performance of optical time-domain reflectometry, employing Brillouin dynamic gratings (BDGs) in polarization-maintaining fibers. The fundamental and unique issues in BDG field-reflection are addressed, and rules for proper selection of the coding and detection techniques are formulated. While coding in BDG applications generally requires coherent processing of the reflection, conditions are established for use of direct detection. A 256-bit Golay complementary unipolar probe code is used to demonstrate an eightfold signal-to-noise ratio enhancement in the measurement of the Brillouin gain spectrum (BGS), with a spatial resolution of 2 cm and a full-BGS acquisition rate of 133⅓ kHz, resulting in an equivalent reduction in the estimation error of small Brillouin frequency shifts.
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Kazierad DJ, Bergman A, Tan B, Erion DM, Somayaji V, Lee DS, Rolph T. Effects of multiple ascending doses of the glucagon receptor antagonist PF-06291874 in patients with type 2 diabetes mellitus. Diabetes Obes Metab 2016; 18:795-802. [PMID: 27059951 DOI: 10.1111/dom.12672] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/31/2016] [Accepted: 03/31/2016] [Indexed: 01/21/2023]
Abstract
AIMS To assess the pharmacokinetics, pharmacodynamics, safety and tolerability of multiple ascending doses of the glucagon receptor antagonist PF-06291874 in patients with type 2 diabetes mellitus (T2DM). METHODS Patients were randomized to oral PF-06291874 or placebo on a background of either metformin (Part A, Cohorts 1-5: 5-150 mg once daily), or metformin and sulphonylurea (Part B, Cohorts 1-2: 15 or 30 mg once daily) for 14-28 days. A mixed-meal tolerance test (MMTT) was administered on days -1 (baseline), 14 and 28. Assessments were conducted with regard to pharmacokinetics, various pharmacodynamic variables, safety and tolerability. Circulating amino acid concentrations were also measured. RESULTS PF-06291874 exposure was approximately dose-proportional with a half-life of ∼19.7-22.7 h. Day 14 fasting plasma glucose and mean daily glucose values were reduced from baseline in a dose-dependent manner, with placebo-corrected decreases of 34.3 and 42.4 mg/dl, respectively, at the 150 mg dose. After the MMTT, dose-dependent increases in glucagon and total glucagon-like peptide-1 (GLP-1) were observed, although no meaningful changes were noted in insulin, C-peptide or active GLP-1 levels. Small dose-dependent increases in LDL cholesterol were observed, along with reversible increases in serum aminotransferases that were largely within the laboratory reference range. An increase in circulating gluconeogenic amino acids was also observed on days 2 and 14. All dose levels of PF-06291874 were well tolerated. CONCLUSION PF-06291874 was well tolerated, has a pharmacokinetic profile suitable for once-daily dosing, and results in reductions in glucose with minimal risk of hypoglycaemia.
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Affiliation(s)
| | | | - B Tan
- Pfizer, Cambridge, MA, USA
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31
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Ben Bouchta Y, Bergman A. SU-F-T-502: FFF Beams, Jaw-Tracking and Treatment Techniques: Out of Field Dose Considerations for Pediatric Radiation Therapy Delivery. Med Phys 2016. [DOI: 10.1118/1.4956687] [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: 11/07/2022] Open
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32
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Emani S, Lampert B, Smith S, Pleister A, Wissman S, MacBrair K, Bergman A, Whitson B, Kilic A. Expensive Taste: US Medicare Policy Regarding Destination Therapy VADs Leads to Additional Medical Costs. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.765] [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: 11/28/2022] Open
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33
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Binaglia M, Bordajandi LR, Bergman A, Boobis A, Ceccatelli S, Cravedi JP, Filipic M, Fuerst P, Johansson N, Knutsen H, Machala M, Merletti F, Papke O, Schrenk D, Van Leeuwen R, Van Leeuwen S. Assessment of the known and the unknown: Brominated flame retardants. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bergman A, Langer T, Tur M. Coherent pulse compression Brillouin dynamic gratings reflectometry for slope-assisted, fast and distributed fiber strain sensing. ACTA ACUST UNITED AC 2015. [DOI: 10.1117/12.2194934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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35
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Yaron L, Shahmoon E, Bergman A, Langer T, Tur M. Spontaneous anti-Stokes backscattering in Brillouin dynamic gratings. ACTA ACUST UNITED AC 2015. [DOI: 10.1117/12.2194608] [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]
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36
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Bergman A, Langer T, Tur M. Slope-assisted complementary-correlation optical time-domain analysis of Brillouin dynamic gratings for high sensitivity, high spatial resolution, fast and distributed fiber strain sensing. ACTA ACUST UNITED AC 2015. [DOI: 10.1117/12.2185279] [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]
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Lindsay JO, Bergman A, Patel AS, Alesso SM, Peyrin-Biroulet L. Systematic review: the financial burden of surgical complications in patients with ulcerative colitis. Aliment Pharmacol Ther 2015; 41:1066-78. [PMID: 25855078 DOI: 10.1111/apt.13197] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 12/03/2014] [Accepted: 03/24/2015] [Indexed: 01/03/2023]
Abstract
BACKGROUND Patients undergoing colectomy for ulcerative colitis (UC) may experience complications associated with reduced quality of life (QoL), and maybe a considerable economic burden to healthcare systems. Appreciation of these burdens is important to evaluate the cost effectiveness of newer interventions for UC vs. colectomy. AIM To identify data representing resource utilisation or costs of complications arising from colorectal procedures in patients with UC, and data representing patient QoL, as reported by health state utility values (HSUVs). METHODS Embase, MEDLINE and The Cochrane Library were searched for studies (1995-2014) reporting resource use/costs of surgical complications, and HSUVs data in adult patients with UC, undergoing colorectal procedures. Conference proceedings (January 2011-January 2014) were hand-searched. RESULTS Twelve studies reported resource use/costs, and three reported HSUVs data in patients with UC experiencing surgical complications. Additional mean costs of postoperative complications ranged from $18 650/patient with complications at a 6-month follow-up (46% incidence) to $34 714/patient with complications over a 5-year period (49% incidence). Pouchitis, pouch failure and small bowel obstruction carried the greatest burden. Marked reductions in HSUVs were observed for patients with UC experiencing surgical complications, vs. patients with UC in a remission state. CONCLUSIONS There is a paucity of well reported studies on resource use/cost, and QoL burden of surgical complications in patients with UC. However, surgical complications represent a substantial burden both in terms of cost and of quality of life, with reoperations, physician fees, additional in-patient hospital stays and infertility treatment being the main cost drivers.
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Affiliation(s)
- J O Lindsay
- Endoscopy Unit, Department of Gastroenterology, Barts Health NHS Trust, The Royal London Hospital, Whitechapel, London
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39
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O'Brien R, Lyon J, Ng J, Bergman A, Booth J, Keall P. TH-CD-303-09: Respiratory Motion Guided 4DCBCT On a Linear Accelerator with Lung Cancer Patient Breathing Traces. Med Phys 2015. [DOI: 10.1118/1.4926244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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40
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Liu M, Weber B, Bergman A, Berthelet E, Fong M, Goddard K, Lai A, Carolan H. EP-1180: VMAT makes it possible to treat more advanced stages of NSCLC compared to 3D-CRT. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41172-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Torkzad MR, Casta N, Bergman A, Ahlström H, Påhlman L, Mahteme H. Comparison between MRI and CT in prediction of peritoneal carcinomatosis index (PCI) in patients undergoing cytoreductive surgery in relation to the experience of the radiologist. J Surg Oncol 2015; 111:746-51. [PMID: 25580825 DOI: 10.1002/jso.23878] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 11/22/2014] [Accepted: 12/01/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND To compare CT and MRI for peritoneal carcinomatosis index (PCI) assessment and to compare assessments made by the radiologist based on their experiences. METHOD AND MATERIALS MRI and CT of abdomen and pelvis were performed on 39 prospectively followed by surgery directly. Two blinded radiologists with different experience levels evaluated PCI separately on different occasions on 19 cases initially and later on the remaining 20. The agreement between the radiologists' assessment and surgical findings in total and per site were recorded. RESULTS Total PCI: The experienced radiologist was able to assess total tumor burden correctly on both CT and MRI (kappa = 1.0). For the inexperienced radiologist the assessment was better on CT (kappa = 0.73) compared to MRI (kappa = 0.58). Different sites: The experienced radiologist showed high agreement with kappa = 0.77 for MRI and 0.80 for CT. Corresponding figures were 0.39 and 0.60 for the inexperienced radiologist. For the second phase the agreement levels increased for the inexperienced radiologist increased to 0.80 and 0.70, respectively. CONCLUSION CT and MRI are equal when read by experienced radiologist. CT shows better results when read by an inexperienced radiologist compared to MRI, however the results of the latter can easily be improved.
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Affiliation(s)
- M R Torkzad
- Department of Gastrointestinal Radiology, University College London; Department of Radiology, Oncology, Radiation Sciences, Uppsala University
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Beaudry J, Bergman A. Poster - Thur Eve - 12: Implementation of a Clinical Lung Tumour High Dose Containment Verification Procedure using Respiratory Cone-Beam CT (4DCBCT) on a Varian TrueBeam Linac. Med Phys 2014. [DOI: 10.1118/1.4894998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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43
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Igarashi RN, Bezerra Neto MM, Eleno LTF, Bergman A, Klautau AB, Eriksson O, Petrilli HM. Magnetic properties of Fe(x)Co(1-x) nanochains on Pt(1 1 1) surfaces. J Phys Condens Matter 2014; 26:206003. [PMID: 24786650 DOI: 10.1088/0953-8984/26/20/206003] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The magnetic properties of FexCo1-x nanochains on Pt(1 1 1) were studied using the first-principles real-space linear muffin-tin orbital-atomic sphere approximation (RS-LMTO-ASA) method within the density functional theory. The relative amounts of Fe and Co atoms in a chosen nanochain were varied and several possible arrangements of the atomic species were taken into account. The results of the exchange interaction demonstrates ferromagnetic coupling for the nanowires. Our calculations of Fe and Co average magnetic moments reveal a large enhancement of both spin and orbital moments compared to Fe-Co films deposited on a Pt(1 1 1) surface. The trend for the orbital moments with respect to stoichiometry differs from all previous higher-dimensional Fe-Co alloys on Pt(1 1 1) studies.
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Affiliation(s)
- R N Igarashi
- Instituto de Física, Universidade de São Paulo, CP 66318, 05315-970, São Paulo-SP, Brazil
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Diaz-Tocados JM, Herencia C, Martinez-Moreno JM, Montes De Oca A, Rodriguez-Ortiz ME, Gundlach K, Buchel J, Steppan S, Passlick-Deetjen J, Rodriguez M, Almaden Y, Munoz-Castaneda JR, Nakano C, Hamano T, Fujii N, Matusi I, Mikami S, Tomida K, Mori D, Kusunoki Y, Shimomura A, Obi Y, Hayashi T, Rakugi H, Isaka Y, Tsubakihara Y, Jorgensen HS, Winther S, Hauge EM, Rejnmark L, Botker HE, Bottcher M, Svensson M, Ivarsen P, Sagliker Y, Demirhan O, Yildiz I, Paylar N, Inandiklioglu N, Akbal E, Tunc E, Tartaglione L, Rotondi S, Pasquali M, Muci ML, Mandanici G, Leonangeli C, Sotir N, Sales S, Mazzaferro S, Gigante M, Cafiero C, Brunetti G, Simone S, Grano M, Colucci S, Ranieri E, Pertosa G, Gesualdo L, Evenepoel P, Goffin E, Meijers B, Kanaan N, Bammens B, Coche E, Claes K, Jadoul M, Louvet L, Metzinger L, Buchel J, Steppan S, Massy ZA, Prasad B, St.Onge JR, Tentori F, Zepel L, Comment L, Akiba T, Bommer J, Fukagawa M, Goodkin DA, Jacobson SH, Robinson BM, Port FK, Evenepoel P, Viaene L, Poesen R, Bammens B, Meijers B, Naesens M, Sprangers B, Kuypers D, Claes K, Tominaga Y, Hiramitsu T, Yamamoto T, Tsujita M, Makowka A, G Yda M, Rutkowska-Majewska E, Nowicki MP, Takeshima A, Ogata H, Yamamoto M, Ito H, Kinugasa E, Kadokura Y, Dimkovic N, Dellanna F, Spasovski G, Wanner C, Locatelli F, Troib A, Assadi MH, Landau D, Rabkin R, Segev Y, Ciceri P, Elli F, Cappelletti L, Tosi D, Savi F, Bulfamante G, Cozzolino M, Barreto FC, De Oliveira RB, Benchitrit J, Louvet L, Rezg R, Poirot S, Jorgetti V, Drueke TB, Riser BL, Massy ZA, Pasquali M, Tartaglione L, Rotondi S, Muci ML, Mandanici G, Leonangeli C, Massimetti C, Utzeri G, Biondi B, Mazzaferro S, Verkaik M, Eringa EC, Musters RJ, Pulskens WP, Vervloet MG, Ter Wee PM, Schiller A, Onofriescu M, Apetrii M, Schiller O, Bob F, Timar R, Mihaescu A, Florea L, Mititiuc I, Veisa G, Covic A, Krause R, Kaase H, Stange R, Hopfenmuller W, Chen TC, Holick MF, Kawasaki T, Ando R, Maeda Y, Arai Y, Sato H, Iimori S, Okado T, Rai T, Uchida S, Sasaki S, An WS, Jeong E, Son SH, Kim SE, Son YK, Baxmann AC, Menon VB, Moreira SR, Medina-Pestana J, Carvalho AB, Heilberg IP, Bergman A, Qureshi AR, Haarhaus MH, Lindholm B, Barany P, Heimburger O, Stenvinkel P, Anderstam B, Wilson RJ, Copley JB, Keith MS, Preston P, Santos RSS, Moyses RMA, Silva BC, Jorgetti V, Coelho FMS, Elias RM, Wanderley RA, Ferreira LQO, Sena TCM, Valerio TR, Gueiros JEB, Gueiros APS, Awata R, Goto S, Nakai K, Fujii H, Nishi S, Sagliker Y, Dingil M, Paylar N, Kapur S, Kim B, Lee DY, Yang S, Kim HW, Moon KH, Palmer S, Teixeira-Pinto A, Saglimbene V, Macaskill P, Craig J, Strippoli G, Marks A, Nguyen H, Fluck N, Prescott G, Robertson L, Black C. CKD BONE DISEASE. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu166] [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: 11/13/2022] Open
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Århammar C, Silvearv F, Bergman A, Norgren S, Pedersen H, Ahuja R. A theoretical study of possible point defects incorporated into α-alumina deposited by chemical vapor deposition. Theor Chem Acc 2013. [DOI: 10.1007/s00214-013-1433-x] [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: 10/25/2022]
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Szilva A, Costa M, Bergman A, Szunyogh L, Nordström L, Eriksson O. Interatomic exchange interactions for finite-temperature magnetism and nonequilibrium spin dynamics. Phys Rev Lett 2013; 111:127204. [PMID: 24093297 DOI: 10.1103/physrevlett.111.127204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/16/2013] [Indexed: 06/02/2023]
Abstract
We derive ab inito exchange parameters for general noncollinear magnetic configurations, in terms of a multiple scattering formalism. We show that the general exchange formula has an anisotropiclike term even in the absence of spin-orbit coupling, and that this term is large, for instance, for collinear configuration in bcc Fe, whereas for fcc Ni it is quite small. We demonstrate that keeping this term leads to what one should consider a biquadratic effective spin Hamiltonian even in the case of collinear arrangement. In noncollinear systems this term results in new tensor elements that are important for exchange interactions at finite temperatures, but they have less importance at low temperature. To illustrate our results in practice, we calculate for bcc Fe magnon spectra obtained from configuration-dependent exchange parameters, where the configurations are determined by finite-temperature effects. Our theory results in the same quantitative results as the finite-temperature neutron scattering experiments.
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Affiliation(s)
- A Szilva
- Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-75120 Uppsala, Sweden
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47
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van Oers JMM, Edwards Y, Chahwan R, Zhang W, Smith C, Pechuan X, Schaetzlein S, Jin B, Wang Y, Bergman A, Scharff MD, Edelmann W. The MutSβ complex is a modulator of p53-driven tumorigenesis through its functions in both DNA double-strand break repair and mismatch repair. Oncogene 2013; 33:3939-46. [PMID: 24013230 DOI: 10.1038/onc.2013.365] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 07/19/2013] [Accepted: 07/30/2013] [Indexed: 01/10/2023]
Abstract
Loss of the DNA mismatch repair (MMR) protein MSH3 leads to the development of a variety of tumors in mice without significantly affecting survival rates, suggesting a modulating role for the MutSβ (MSH2-MSH3) complex in late-onset tumorigenesis. To better study the role of MSH3 in tumor progression, we crossed Msh3(-/-) mice onto a tumor predisposing p53-deficient background. Survival of Msh3/p53 mice was not reduced compared with p53 single mutant mice; however, the tumor spectrum changed significantly from lymphoma to sarcoma, indicating MSH3 as a potent modulator of p53-driven tumorigenesis. Interestingly, Msh3(-/-) mouse embryonic fibroblasts displayed increased chromatid breaks and persistence of γH2AX foci following ionizing radiation, indicating a defect in DNA double-strand break repair (DSBR). Msh3/p53 tumors showed increased loss of heterozygosity, elevated genome-wide copy-number variation and a moderate microsatellite instability phenotype compared with Msh2/p53 tumors, revealing that MSH2-MSH3 suppresses tumorigenesis by maintaining chromosomal stability. Our results show that the MSH2-MSH3 complex is important for the suppression of late-onset tumors due to its roles in DNA DSBR as well as in DNA MMR. Further, they demonstrate that MSH2-MSH3 suppresses chromosomal instability and modulates the tumor spectrum in p53-deficient tumorigenesis and possibly has a role in other chromosomally unstable tumors as well.
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Affiliation(s)
- J M M van Oers
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Y Edwards
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - R Chahwan
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - W Zhang
- Department of Medicine, Mount Sinai School of Medicine, New York, NY, USA
| | - C Smith
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - X Pechuan
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - S Schaetzlein
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - B Jin
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Y Wang
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - A Bergman
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - M D Scharff
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - W Edelmann
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
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48
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Gete E, Bergman A, Duzenli C, Lee R, Viel F, Teke T. SU-E-T-411: Monte Carlo Simulations for Quality Assurance of Varian TrueBeam 10XFFF VMAT SABR Treatments. Med Phys 2013. [DOI: 10.1118/1.4814845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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49
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Bergman A, Heimer D, Kondori N, Enroth H. Fast and specific dermatophyte detection by automated DNA extraction and real-time PCR. Clin Microbiol Infect 2013; 19:E205-11. [DOI: 10.1111/1469-0691.12153] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 12/29/2012] [Accepted: 01/02/2013] [Indexed: 11/29/2022]
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50
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Jakobsson K, Fång J, Athanasiadou M, Rignell-Hydbom A, Bergman A. Polybrominated diphenyl ethers in maternal serum, umbilical cord serum, colostrum and mature breast milk. Insights from a pilot study and the literature. Environ Int 2012; 47:121-130. [PMID: 22819984 DOI: 10.1016/j.envint.2012.05.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 05/02/2012] [Accepted: 05/25/2012] [Indexed: 06/01/2023]
Abstract
Human serum and mother's milk are frequently used to assess exposure to polybrominated diphenyl ethers (PBDEs), including transplacental transfer to the foetus. However, little is known about the kinetics of PBDEs, especially the highly brominated BDE congeners. In this pilot study, maternal serum samples were collected from 10 women at delivery and five to six weeks post partum. Umbilical serum was also obtained. Milk was donated two to five days, and five to six weeks after delivery. The amount of PBDEs in these samples was determined using liquid-liquid extraction and GC/MS. Low, moderately and highly brominated diphenyl ethers were present in umbilical cord serum, indicating placental transfer. The lipid-adjusted levels of BDE-47, BDE-207 and BDE-209 were similar in maternal and umbilical cord serum, whereas the cord serum levels for the penta- to octa-BDEs quantified were lower than in maternal serum. Marked changes were seen in the congener pattern in breast milk during the first month of lactation, whereas maternal serum levels did not change significantly. The general pattern was an enrichment of low to moderately brominated congeners (i.e. from BDE-17 to BDE-154, with the exception of BDE-28) in colostrum compared with maternal serum. In contrast, more highly brominated congeners were found at similar, or lower levels in colostrum than in maternal serum. After the transition from colostrum to mature milk, the levels of BDE-153 and BDE-209 were substantially reduced, and BDE-209 was below the limit of detection in 6 out of 9 samples. A literature review on the design and reporting of studies on the transfer of PBDEs from mother to infant revealed a lack of transparency in many cases. The use of the recently published STROBE-ME guidelines is therefore recommended.
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Affiliation(s)
- K Jakobsson
- Department of Occupational and Environmental Medicine, Lund University, SE-221 85 Lund, Sweden.
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