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Hamilton R, Mulvihill A, Butler L, Chow A, Irving E, McCulloch DL, McNeil A, Michael K, Spowart KM, Waterson-Wilson J, Mactier H. Impaired vision in children prenatally exposed to methadone: an observational cohort study. Eye (Lond) 2024; 38:118-126. [PMID: 37402864 PMCID: PMC10764882 DOI: 10.1038/s41433-023-02644-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/05/2023] [Accepted: 06/15/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND/OBJECTIVES To examine prevalence of failed visual assessment at 8-10 years in children born to methadone-maintained opioid dependent (MMOD) mothers and relate this to known in utero substance exposure. SUBJECTS/METHODS Follow up of observational cohort study of methadone-exposed and comparison children matched for birthweight, gestation and postcode of residence at birth. Participants were 144 children (98 exposed, 46 comparison). Prenatal drug exposure was previously established via comprehensive maternal and neonatal toxicology. Children were invited to attend for visual assessment and casenotes were reviewed. Presence of acuity poorer than 0.2 logMAR, strabismus, nystagmus and/or impaired stereovision constituted a 'fail'. Fail rates were compared between methadone-exposed and comparison children after adjusting for known confounding variables. RESULTS 33 children attended in person: data were also derived from casenote review for all children. After controlling for maternal reported tobacco use, methadone-exposed children were more likely to have a visual 'fail' outcome, adjusted odds ratio 2.6, 95% CI 1.1-6.2; adjusted relative risk 1.8 (95% CI 1.1-3.4). Visual 'fail' outcome rates did not differ between methadone-exposed children who had (n = 47) or had not (n = 51) received pharmacological treatment for neonatal abstinence/opioid withdrawal syndrome (NAS/NOWS); fail rate 62% vs 53% (95% CI of difference-11-27%). CONCLUSIONS Children born to MMOD mothers are almost twice as likely as unexposed peers to have significant visual abnormalities at primary school age. Prenatal methadone exposure should be considered in the differential diagnosis of nystagmus. Findings support visual assessment prior to school entry for children with any history of prenatal opioid exposure. TRIAL REGISTRATION The study was prospectively registered on ClinicalTrials.gov (NCT03603301), https://clinicaltrials.gov/ct2/show/NCT03603301 .
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Affiliation(s)
- R Hamilton
- Royal Hospital for Children, NHS Greater Glasgow & Clyde and the University of Glasgow, Glasgow, G51 4TF, UK.
| | - A Mulvihill
- Princess Alexandra Eye Pavilion, NHS Lothian, Edinburgh, EH3 9HA, UK
| | - L Butler
- Tennant Institute of Ophthalmology, NHS Greater Glasgow & Clyde, Glasgow, G12 0YN, UK
| | - A Chow
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - E Irving
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - D L McCulloch
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - A McNeil
- Royal Hospital for Children, NHS Greater Glasgow & Clyde, Glasgow, G51 4TF, UK
| | - K Michael
- Crosshouse Hospital, NHS Ayrshire & Arran, Kilmarnock, KA2 0BE, UK
| | - K M Spowart
- Specialist Children's Services, NHS Greater Glasgow & Clyde, Glasgow, G40 1DA, UK
| | - J Waterson-Wilson
- Royal Hospital for Children, NHS Greater Glasgow & Clyde, Glasgow, G51 4TF, UK
| | - H Mactier
- NHS Greater Glasgow & Clyde and the University of Glasgow, Glasgow, UK
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Soosman SK, Schenker MP, Mazzola E, Voligny E, Smokovich A, Bay C, Nguyen T, Michael K, Jänne PA, Rabin M, Glazer DI, Johnson BE, Luo J. Safety of image guided research biopsies in patients with thoracic malignancies. Lung Cancer 2022; 173:53-57. [PMID: 36152477 DOI: 10.1016/j.lungcan.2022.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/09/2022] [Accepted: 08/31/2022] [Indexed: 10/31/2022]
Abstract
OBJECTIVE A common opportunity to collect research samples is during image-guided percutaneous core needle biopsies (CNBs) performed when clinically indicated or for assessing clinical trial eligibility. The relative safety of extra CNBs collected for research is undefined. MATERIALS AND METHODS Patients who underwent CNB for research purposes only [RO], as clinically indicated [CI], or as part of a clinical trial [CT] were identified. 30-day post-procedure adverse events (AEs) among the cohorts were examined and compared to the 2020 Society of Interventional Radiology QI guidelines. RESULTS 236 patients with thoracic cancers (90 % NSCLC, 5 % SCLC, 4 % mesothelioma, and 1 % thymic) had 292 CNBs (63 RO, 229 CI + CT). AEs occurred in 13 % of both the RO and CI + CT groups. Compared to the CI + CT group, the RO group did not have a higher pneumothorax incidence (RO: 5/29 [17 %], CI + CT: 18/114 [16 %], p = 0.79); both were below the suggested QI threshold of 45 % for pneumothorax. There was a negative association between number of cores obtained and risk of AE (AE vs no AE mean cores = 3.5 vs 4.8). After adjusting for the number of cores and smoking history, RO vs CI + CT lung biopsies had a higher risk of AEs (adjusted relative risk [aRR] = 2.44, 1.08-5.55, p = 0.03 vs non-lung aRR = 0.86, 0.10-7.09, p = 0.89). CONCLUSION CNBs performed for research purposes do not have a significantly increased risk of AEs when compared to those performed for clinical trials and/or when clinically indicated. However, AEs were most frequent in lung biopsies. When performing research biopsies, a target other than lung may be preferred when clinically appropriate.
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Affiliation(s)
- Steffan K Soosman
- Division of Angiography and Interventional Radiology, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Matthew P Schenker
- Division of Angiography and Interventional Radiology, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Emanuele Mazzola
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Emma Voligny
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Anna Smokovich
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Camden Bay
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Tom Nguyen
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Kesi Michael
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Pasi A Jänne
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Michael Rabin
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Daniel I Glazer
- Division of Abdominal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Bruce E Johnson
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Jia Luo
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA.
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Luo J, Soosman S, Schenker M, Mazzola E, Voligny E, Smokovich A, Nguyen T, Michael K, Jänne P, Rabin M, Glazer D, Johnson B. EP13.01-006 Safety of Image Guided Research Biopsies in Patients with Thoracic Malignancies. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.926] [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: 10/14/2022]
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Nishino M, Hatabu H, Ricciuti B, Vaz V, Michael K, Awad MM. Axillary Lymphadenopathy After Coronavirus Disease 2019 Vaccinations in Patients With Thoracic Malignancy: Incidence, Predisposing Factors, and Imaging Characteristics. J Thorac Oncol 2022; 17:154-159. [PMID: 34506955 PMCID: PMC8423658 DOI: 10.1016/j.jtho.2021.08.761] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/23/2021] [Indexed: 01/04/2023]
Abstract
OBJECTIVES Axillary lymphadenopathy from coronavirus disease 2019 (COVID-19) vaccine is an emerging phenomenon during unprecedented mass vaccinations, which can be incidentally found on computed tomography (CT) scans. This study investigated the incidence, predisposing factors, and imaging characteristics of vaccine-related axillary lymphadenopathy in patients with thoracic malignancy who underwent CT scans before and after COVID-19 vaccinations. METHODS The study included patients with thoracic malignancies who received two doses of mRNA-based COVID-19 vaccinations and had prevaccine and postvaccine chest CT scans. Postvaccine chest CT scan results were reviewed for increase in size of lymph nodes in the axilla and subpectoral areas, comparing with the prevaccine scan results. The cases with lymphadenopathy were further reviewed independently by two radiologists referring to clinical information to find whether lymphadenopathy was attributed to the vaccinations. RESULTS Vaccine-related axillary lymphadenopathy was noted in 21 of 232 patients (9.0%). The median short-axis diameter of the largest node was 7 mm (range: 5-14 mm). The median number of increased nodes was 4 (range: 1-10). The median time to the postvaccine scan revealing lymphadenopathy was 1.7 weeks (range: -2.9 to 6.6) from the second dose. Vaccine-related lymphadenopathy was noted more often in women than in men (18 of 144, 12.5% versus 3 of 88, 3.4%, respectively; p = 0.019) and with mRNA-1273 vaccines than BNT162b2 vaccines (6 of 28, 21% versus 15 of 204, 7.4%, respectively; p = 0.026). CONCLUSIONS The incidence of lymphadenopathy was 9%, with a median onset time of 1.7 weeks after the second vaccine dose. Female sex and vaccine type (mRNA-1273 vaccine) were associated with higher frequency of lymphadenopathy, providing initial observations to inform further investigations in larger cohorts.
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Affiliation(s)
- Mizuki Nishino
- Department of Radiology, Brigham and Women’s Hospital, Boston, Massachusetts,Department of Imaging, Dana-Farber Cancer Institute, Boston, Massachusetts,Corresponding author. Address for correspondence: Mizuki Nishino, MD, MPH, Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215
| | - Hiroto Hatabu
- Department of Radiology, Brigham and Women’s Hospital, Boston, Massachusetts,Department of Imaging, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Biagio Ricciuti
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts,Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Victor Vaz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts,Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Kesi Michael
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts,Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Mark M. Awad
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts,Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
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Lindpaintner K, Cheng M, Prendergast J, Normington K, Wong M, Xu G, Cong X, Rice R, Lawrence M, Michael K, Serie D. 30 Blood-based glycoprotein signatures in advanced non-small-cell lung carcinoma (NSCLC) receiving first-line immune checkpoint blockade. J Immunother Cancer 2021. [DOI: 10.1136/jitc-2021-sitc2021.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BackgroundImmune checkpoint blockade is an integral component of first-line therapy for most patients with ad-vanced non-small cell lung cancer (NSCLC), however individual patient outcomes are highly variable and improved biomarkers are needed. Protein glycosylation is an emerging mechanism of immune evasion in cancer. We examined blood-based glycopeptide signatures in a cohort of advanced NSCLC patients treated with first-line immune checkpoint blockade.MethodsPretreatment blood samples were obtained from 46 advanced NSCLC patients treated with first line pembrolizumab or pembrolizumab + carboplatin + pemetrexed. All patients provided written in-formed consent to the institutional review board–approved protocols (#02–180 and 13–367) at the Da-na-Farber/Harvard Cancer Center (Boston, MA), and the study was conducted in accordance with the Declaration of Helsinki. Samples were analyzed using an advanced glycoproteomics platform (Inter-Venn Biosciences) that combines ultra-high-performance liquid chromatography coupled to triple quadrupole mass spectrometry with a proprietary neural-network-based data processing engine. 409 individual glycopeptide (GP) signatures derived from 67 abundant serum proteins were analyzed and correlated with overall survival (OS) and other clinical outcomes.ResultsWe identified 30 GPs with abundance differences using a False Discovery Rate (FDR) threshold of 0.05. Using the 5 most predictive GP markers, we created a multivariable model for OS by generating leave-one-out cross-validation (LOOCV) scores and determining an optimized cutoff value of -0.83 (range: -2.2 - 3.4) for these scores using Harrell’s concordance index. The median overall survival was 2.8 years for patients (n=14) whose GP classifier value was above the cutoff and 0.8 years for patients (n=32) whose GP classifier value was below the cutoff (HR 7.4, 95% CI 1.7–32.1, p=0.007) The model’s perfor-mance was not affected by sex, age, or treatment regimen.ConclusionsBlood-based glycopeptide signatures may represent novel, non-invasive biomarkers of clinical out-come to first-line immune checkpoint blockade in advanced NSCLC. Additional research is needed to validate these findings in larger cohorts and to explore potential applications relevant to clinical decision-making.Ethics ApprovalThe study obtained ethics approval from the institutional review board (approved protocol #02–180 and 13–367) at the Dana-Farber/Harvard Cancer Center (Boston, MA), and the study was conducted in accordance with the Declaration of Helsinki.ConsentAll patients provided written informed consent to the institutional review board–approved protocols (#02–180 and 13–367) at the Dana-Farber/Harvard Cancer Center (Boston, MA), and the study was conducted in accordance with the Declaration of Helsinki.
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Milaszewski M, Loizeaux J, Tjon E, Cabral C, Dadali T, Strickland J, Foti J, Mancini K, Michael K, Dowal L, Vemulapalli V, Visintin A, Davis T, Flechtner J, Awad M. 248 Empiric profiling of peripheral T cell recall responses to tumor mutanomes versus in silico predictions in NSCLC patients undergoing pembrolizumab treatment ± chemotherapy. J Immunother Cancer 2021. [DOI: 10.1136/jitc-2021-sitc2021.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BackgroundEffective immune checkpoint blockade (ICB) treatment is dependent on T-cell recognition of patient-specific mutations (neoantigens). Empirical identification of neoantigens ex vivo has revealed shortcomings of in silico predictions.1 To better understand the impact of ICB treatment on T cell responses and differences between in silico and in vitro methods, neoantigen-specific T cell responses were evaluated in patients with non-small cell lung cancer undergoing first-line therapy with pembrolizumab ± chemotherapy.MethodsTumor and whole blood samples were collected from 14 patients prior to and after immunotherapy; seven each in monotherapy and combination therapy cohorts. The ex vivo ATLAS™ platform was used to profile neoantigen-specific T-cell responses. Patient-specific tumor mutations identified by next-generation sequencing (NGS) were expressed individually as ATLAS clones, processed patient-specific autologous antigen presenting cells, and presented to their T cells in vitro. ATLAS-verified antigens were compared with epitope predictions made using algorithms.ResultsOn average, 150 (range 37–339) non-synonymous mutations were identified. Pre-treatment, ATLAS identified T cell responses to a median of 15% (9–25%) of mutations, with nearly equal proportions of neoantigens (8%, 5–15%) and Inhibigens™, targets of suppressive T cell responses (8%, 3–13%). The combination therapy cohort had more confirmed neoantigens (46, 20–103) than the monotherapy cohort (7, 6–79). After treatment, the median ratio of CD4:CD8 T cells doubled in the monotherapy but not combination cohort (1.2 to 2.4 v. 1.6 to 1.3). Upon non-specific stimulation, T cells from patients on combination therapy expanded poorly relative to monotherapy (24 v. 65-fold, p = 0.014); no significant differences were observed pre-treatment (22 v. 18-fold, p = 0.1578). Post-treatment, the median number of CD8 neoantigens increased in the combination therapy cohort (11 to 15) but in monotherapy were mostly unchanged (6 to 7). Across timepoints, 36% of ATLAS-identified responses overlapped. In silico analysis resulted in 1,895 predicted epitopes among 961 total mutations; among those, 30% were confirmed with ATLAS, although nearly half were Inhibigens, which could not be predicted. Moreover, 50% of confirmed neoantigens were missed by in silico prediction.ConclusionsMonotherapy and combination therapy had differential effects on CD4:CD8 T cell ratios and their non-specific expansion. A greater proportion of neoantigens was identified than previously reported in studies employing in silico predictions prior to empirical verification.2 Overlap between confirmed antigens and in silico prediction was observed, but in silico prediction continued to have a large false negative rate and could not characterize Inhibigens.AcknowledgementsWe would like to acknowledge and thank the patients and their families for participating in this study.ReferencesLam H, McNeil LK, Starobinets H, DeVault VL, Cohen RB, Twardowski P, Johnson ML, Gillison ML, Stein MN, Vaishampayan UN, DeCillis AP, Foti JJ, Vemulapalli V, Tjon E, Ferber K, DeOliveira DB, Broom W, Agnihotri P, Jaffee EM, Wong KK, Drake CG, Carroll PM, Davis TA, Flechtner JB. An empirical antigen selection method identifies neoantigens that either elicit broad antitumor T-cell responses or drive tumor growth. Cancer Discov 2021;11(3):696–713. doi: 10.1158/2159- 8290.CD-20-0377. Epub 2021 January 27. PMID: 33504579. Rosenberg SA. Immersion in the search for effective cancer immunotherapies. Mol Med 27,63(2021). https://doi.org/10.1186/s10020-021-00321-3
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Michael K, Clayton B, Chiuta S. 758 Online Surgical Journal Clubs: Are They Effective? Br J Surg 2021. [DOI: 10.1093/bjs/znab259.870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Aim
Much of medical education has been abruptly forced online during the COVID-19 pandemic. Traditional journal clubs thrive on group interaction and debate. The aim of this project is to assess whether an online surgical journal club could replicate this experience and learning.
Method
A fortnightly, chat-based online surgical journal club with national reach was re-launched under SCALPEL (Manchester Medical School’s surgical society) with defined learning objectives, inclusion of studies from different surgical sub-specialities and a proforma to aid critical appraisal. Anonymous feedback forms were sent to participants to assess confidence in critically appraising the literature before and after attendance, and differences in means were analysed using paired t-test.
Results
32 feedback forms from participants, the majority of whom were final year medical students (34.4%) were analysed. 28.1% had previously attended a journal club. 65.6% of attendees had prior involvement in a research project which led to a publication for 18.8%, while 59.4% were interested in applying for the Academic Foundation Programme (AFP). The self-reported confidence of participants to identify the study design, interpret the results and statistical analyses; and scrutinise the strengths and weaknesses of a study increased by 12.2%, 14.7% and 15.9% respectively (p = <0.001). Furthermore, 96.9% of attendees stated they would attend another online journal club in the future, with 59.4% favouring an online format.
Conclusions
Online surgical journal clubs are effective and are here to stay following the conclusion of social distancing. They have the advantage of further outreach and may encourage greater participation than traditional journal clubs.
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Affiliation(s)
- K Michael
- North West School of Surgery, North West England, United Kingdom
- North Manchester General Hospital, Greater Manchester, United Kingdom
| | - B Clayton
- University of Manchester Medical School, Manchester, United Kingdom
| | - S Chiuta
- University of Manchester Medical School, Manchester, United Kingdom
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Michael K, Walbaum C, Gonzalez V, Bourdoumis A, Surange R. 757 An Audit of Post-Vasectomy Semen Analysis Adherence. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.1095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Aim
Following vasectomy, patients undergo post-vasectomy semen analysis (PVSA) to determine whether they can be “cleared” to safely discontinue contraception. The adherence rates to PVSA are notoriously poor in the literature. The aim of this project is to assess our patient’s adherence to PVSA and identify areas for improvement.
Method
All vasectomies undertaken at a large urology centre between 01/01/2019 and 31/12/2019 were included. PVSAs were scrutinised one year later to determine clearance or special clearance according to the 2016 Laboratory Guidelines for Post-vasectomy Semen Analysis endorsed by the British Andrology Society.
Results
256 patients underwent bilateral vasectomy, with 132 (51.6%) undergoing PVSA, at a median of 16.4 weeks (range 7.3 – 71.6). At time of review, 71 (54.5%) of these have been cleared; 45 (63.4%) after a single PVSA and 19 (26.8%) after the second. Seven patients (9.9%) received special clearance, two patients (1.5%) were not cleared despite meeting the special clearance criteria and one patient suffered early failure (0.8%). Clearance letters were issued at a median of 2.7 weeks (range 0.1 – 28.8) following satisfactory PVSA results. Moreover, 33 patients (25%) had at least one PVSA sample rejected by the lab, mainly due to timing issues or incomplete information on the request form.
Conclusions
The adherence rate to PVSA in our cohort is in keeping with the literature, and the majority of patients who are cleared achieve this with just one PVSA. Interventions aimed at counselling patients about the importance of PVSA, reducing unnecessary repeats and reducing rejected samples are necessary.
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Affiliation(s)
- K Michael
- North Manchester General Hospital, Greater Manchester, United Kingdom
- North West School of Surgery, North West England, United Kingdom
| | - C Walbaum
- North Manchester General Hospital, Greater Manchester, United Kingdom
| | - V Gonzalez
- North Manchester General Hospital, Greater Manchester, United Kingdom
| | - A Bourdoumis
- North Manchester General Hospital, Greater Manchester, United Kingdom
| | - R Surange
- North Manchester General Hospital, Greater Manchester, United Kingdom
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Lawrence MN, Tamen RM, Martinez P, Sable-Hunt A, Addario T, Barbour P, Shaffer T, Hosseini SA, Bertucci C, Lim LP, Hong F, Michael K, Simon GR, Riess JW, Awad MM, Oxnard GR. SPACEWALK: A Remote Participation Study of ALK Resistance Leveraging Plasma Cell-Free DNA Genotyping. JTO Clin Res Rep 2021; 2:100151. [PMID: 34590008 PMCID: PMC8474207 DOI: 10.1016/j.jtocrr.2021.100151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/15/2021] [Accepted: 01/22/2021] [Indexed: 11/19/2022] Open
Abstract
Introduction Remote consent and enrollment offer a unique opportunity to provide rare cancer populations with access to clinical research. The genomic analysis of plasma cell-free DNA (cfDNA) permits remote characterization of the cancer genome. We hypothesized we could leverage these approaches to remotely study drug resistance in patients with metastatic ALK-positive NSCLC. Methods The SPACEWALK study (Study of Plasma Next-Generation Sequencing for Remote Assessment, Characterization, Evaluation of Patients With ALK Drug Resistance) enrolled patients with ALK-positive NSCLC and progression on a next-generation ALK inhibitor who could participate remotely. Plasma was collected for next-generation sequencing (NGS) of cfDNA before initiating subsequent therapy, with results returned and subsequent therapy studied. Results Of the 62 patients enrolled, an ALK fusion was detected in 27 (44%) with a median allelic fraction of 2.6%. Among these 27 patients, a potential resistance mechanism was identified in 17 patients (63%): eight cases (30%) had secondary ALK kinase domain resistance mutations, three cases (11%) had bypass track resistance, and six cases (22%) had both ALK resistance mutations and bypass resistance. The most frequently detected mechanism of bypass resistance was MET amplification. Repeat plasma NGS was performed in 14 patients after subsequent treatment was initiated, with seven (50%) patients exhibiting greater than 50% reductions in ALK fusion allelic fraction. Conclusions Through the leveraging of remote participation, plasma NGS offers an optimal mechanism for characterizing resistance to emerging targeted therapies in rare cancer populations, though sensitivity depends on adequate tumor DNA samples. Repeat cfDNA analysis on therapy may offer an objective monitoring approach to remotely study treatment response.
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Affiliation(s)
- Marissa N. Lawrence
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Rubii M. Tamen
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Pablo Martinez
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | | | - Tony Addario
- Addario Lung Cancer Medical Institute, San Carlos, California
| | - Pete Barbour
- Addario Lung Cancer Medical Institute, San Carlos, California
| | | | | | | | - Lee P. Lim
- Resolution Bioscience, Kirkland, Washington
| | - Fangxin Hong
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Kesi Michael
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - George R. Simon
- Department of Thoracic/Head & Neck Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jonathan W. Riess
- Division of Hematology/Oncology, UC Davis Comprehensive Cancer Center, Sacramento, California
| | - Mark M. Awad
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Corresponding author. Address for correspondence: Mark M. Awad, MD, PhD, Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, 450 Brookline Ave., Boston, MA 02215.
| | - Geoffrey R. Oxnard
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
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Eser PÖ, Paranal RM, Son J, Ivanova E, Kuang Y, Haikala HM, To C, Okoro JJ, Dholakia KH, Choi J, Eum Y, Ogino A, Missios P, Ercan D, Xu M, Poitras MJ, Wang S, Ngo K, Dills M, Yanagita M, Lopez T, Lin M, Tsai J, Floch N, Chambers ES, Heng J, Anjum R, Santucci AD, Michael K, Schuller AG, Cross D, Smith PD, Oxnard GR, Barbie DA, Sholl LM, Bahcall M, Palakurthi S, Gokhale PC, Paweletz CP, Daley GQ, Jänne PA. Oncogenic switch and single-agent MET inhibitor sensitivity in a subset of EGFR-mutant lung cancer. Sci Transl Med 2021; 13:eabb3738. [PMID: 34516823 PMCID: PMC8627689 DOI: 10.1126/scitranslmed.abb3738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Pınar Özden Eser
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA.,Harvard Medical School, Boston, MA 02115, USA
| | - Raymond M Paranal
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jieun Son
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Elena Ivanova
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Yanan Kuang
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Heidi M Haikala
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Ciric To
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Jeffrey J Okoro
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Kshiti H Dholakia
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jihyun Choi
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Yoonji Eum
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Atsuko Ogino
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Pavlos Missios
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA
| | - Dalia Ercan
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Man Xu
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Michael J Poitras
- Experimental Therapeutics Core, Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Stephen Wang
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Kenneth Ngo
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Michael Dills
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Masahiko Yanagita
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Timothy Lopez
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Mika Lin
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jeanelle Tsai
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Nicolas Floch
- Oncology R&D, Bioscience, AstraZeneca, CRUK Cambridge Institute, Robinson Way, Cambridge CB2 0RE, UK
| | - Emily S Chambers
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jennifer Heng
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Rana Anjum
- Bioscience, Oncology R&D, AstraZeneca, 25 Gatehouse Park, Waltham, MA 02451, USA
| | - Alison D Santucci
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Kesi Michael
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Alwin G Schuller
- Bioscience, Oncology R&D, AstraZeneca, 25 Gatehouse Park, Waltham, MA 02451, USA
| | - Darren Cross
- Global Medical Affairs, Oncology Business Unit, AstraZeneca, 136 Hills Road, Cambridge CB2 8PA, UK
| | - Paul D Smith
- Oncology R&D, Bioscience, AstraZeneca, CRUK Cambridge Institute, Robinson Way, Cambridge CB2 0RE, UK
| | - Geoffrey R Oxnard
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - David A Barbie
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Lynette M Sholl
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Magda Bahcall
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Sangeetha Palakurthi
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Prafulla C Gokhale
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Experimental Therapeutics Core, Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Cloud P Paweletz
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - George Q Daley
- Harvard Medical School, Boston, MA 02115, USA.,Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA.,Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Pasi A Jänne
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
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Bär T, Bornhäuser M, Kroschinsky F, Sockel K, Balaian E, Corinna J, Platzbecker U, Michael K. Topic: AS06-Prognosis/AS06a-Prognostic factors of outcome and risk assessment. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106681.43] [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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12
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Frommel A, Hermann B, Michael K, Lucassen M, Clemmesen C, Hanel R, Reusch T. Differential gene expression patterns related to lipid metabolism in response to ocean acidification in larvae and juveniles of Atlantic cod. Comp Biochem Physiol A Mol Integr Physiol 2020; 247:110740. [DOI: 10.1016/j.cbpa.2020.110740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 01/10/2023]
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Lloyd TD, Neal‐Smith G, Fennelly J, Claireaux H, Bretherton C, Carr AJ, Murphy M, Kendrick BJ, Palmer AJR, Wong J, Sharma P, Osei‐Bonsu PK, Ashcroft G, Baigent T, Shirland E, Espey R, Stokes M, Liew I, Dhawal A, Watchorn D, Lum J, Qureshi M, Khaled AS, Kauser S, Hodhody G, Rogers S, Haywood‐Alexander B, Sheikh G, Mahapatra P, Twaij H, Chicco M, Arnaout F, Atherton T, Mutimer J, Sinha P, Oliver E, Stedman T, Gadd R, Kutuzov V, Sattar M, Robiati L, Plastow R, Howe T, Hassan A, Lau B, Collins J, Doshi A, Tan G, Baskaran D, Hari Sunil Kumar K, Agarwal R, Horner M, Gwyn R, Masud S, Beaumont O, Pilarski A, Lebe M, Dawson‐Bowling S, Nolan D, Tsitskaris K, Beamish RE, Jordan C, Alsop S, Hibbert E, Deshpande G, Gould A, Briant‐Evans T, Kilbane L, Crowther I, Ingoe H, Naisbitt A, Gourbault L, Muscat J, Goh EL, Gill J, Elbashir M, Modi N, Archer J, Ismael S, Petrie M, O'Brien H, McCormick M, Koh NP, Lloyd T, King A, Ikram A, Peake J, Yoong A, Rye DS, Newman M, Naraen A, Myatt D, Kapur R, Sgardelis P, Kohli S, Culverhouse‐Mathews M, Haynes S, Boden H, Purmah A, Shenoy R, Raja S, Koh NP, Donovan R, Yeomans D, Ritchie D, Larkin R, Aladwan R, Hughes K, Unsworth R, Cooke R, Samra I, Barrow J, Michael K, Byrne F, Anwar R, Karatzia L, Drysdale H, Wilson H, Jones R, Dass D, Liaw F, Aujla R, Kheiran A, Bell K, Ramavath AL, Telfer R, Nachev K, Lawrence H, Garg V, Shenoy P, Lacey A, Byrom I, Simons M, Manning C, Cheyne N, Williams J. Peri‐operative administration of tranexamic acid in lower limb arthroplasty: a multicentre, prospective cohort study. Anaesthesia 2020; 75:1050-1058. [DOI: 10.1111/anae.15056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2020] [Indexed: 12/20/2022]
Affiliation(s)
- T. D. Lloyd
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - G. Neal‐Smith
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - J. Fennelly
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - H. Claireaux
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - C. Bretherton
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - A. J. Carr
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
| | - M. Murphy
- University of Oxford UK
- NHS Blood and Transplant Oxford UK
| | - B. J. Kendrick
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
| | - A. J. R. Palmer
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
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Jackson S, Oliver E, Smith K, Michael K, Cleary M. Performance evaluation of the VITROS® hs Troponin I assay⁎ on the VITROS® ECi/ECiQ and 3600 immunodiagnostic and VITROS® 5600/XT 7600 integrated systems. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.411] [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]
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Routman D, Funk R, Tangsriwong K, Lin A, Michael K, Garcia J, Stoddard D, Eric M, Day C, Zhai Q, Price K, Lukens J, Samuel S, Weinstein G, O'Malley B, Foote R, Ma D. Relapse Rates with Surgery Alone in HPV-Related Intermediate- and High-Risk-Group Oropharynx Squamous Cell Cancer: A Multi-Institutional Review. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Evans J, Silberbauer J, Glover B, Kontogeorgis A, McLellan A, Panikker S, Sieniewicz B, Martin C, Burg M, Providencia R, Behar J, Burke M, Withers K, White J, Lencioni M, Carolan-Rees G, Wood K, Patrick H, Griffith M, Gomes J, Kirubakaran S, O'Nunain S, Bencat M, McCready J, Michael K, Hashemi J, Gupta D, Akl S, Redfearn D, Lim E, Panikker S, Butcher C, Khan H, Mantziari L, Jarman J, Hussain W, Jones D, Clague J, Ernst S, Markides V, Wong T, Ezzat V, Schilling R, Lowe M, Whitaker J, Virmani R, Kutys R, Jarman J, Fastl T, Haldar S, Butcher C, Khan H, Mantziari L, O'Neill M, Corado C, Nicol E, Foran J, Markides V, Niederer S, Wong T, Behar J, Sohal M, Jais P, Derval N, Spragg D, Van Gelder B, Bracke F, Steendijk P, Rinaldi C, Chooneea B, Gajendragadkar P, Ahsan S, Begley D, Dhinoja M, Earley M, Ezzat V, Finlay M, Grace A, Heck P, Hunter R, Lambiase P, Lowe M, Rowland E, Schilling R, Segal O, Sporton S, Virdee M, Chow A, Apap Bologna R, Camilleri W, Sammut M, Aquilina O, Barra S, Papageorgiou N, Falconer D, Duehmke R, Rehal O, Ahsan S, Ezzat V, Dhinoja M, Ioannou A, Segal O, Sporton S, Rowland E, Lowe M, Lambiase P, Agarwal S, Chow A, Toth D, Mountney P, Reiml S, Panayioutu M, Brost A, Fahn B, Sohal M, Patel N, Claridge S, Jackson T, Adhya S, Sieniwicz B, O'Neill M, Razavi R, Rhode K, Rinaldi C, Tjong F, Brouwer T, Koop B, Soltis B, Shuros A, Knops R. ORAL ABSTRACTS (2)EP & Ablation19CARDIAC ABLATION PATIENT REPORTED OUTCOMES MEASURES (PROMS): ANALYSIS OF POST-ABLATION AND 1 YEAR FOLLOW-UP DATA20INTENTIONAL CORONARY VEIN EXIT AND CARBON DIOXIDE INSUFFLATION TO ALLOW SAFE SUBXIPHOID EPICARDIAL ACCESS FOR VENTRICULAR MAPPING AND ABLATION - FIRST EXPERIENCE21PACED FRACTIONATION DETECTION AS A TOOL FOR MAPPING SCARS IN VT22DOES USE OF CONTACT-FORCE SENSING CATHETERS IMPROVE THE OUTCOME OF ABLATION OF VENTRICULAR TACHYCARDIA?23RETROGRADE AORTIC ACCESS OF THE PULMONARY VENOUS ATRIUM PROVIDES EQUIVALENT OUTCOMES TO RIGHT ATRIAL OR TRANSEPTAL ACCESS OF THE LEFT ATRIUM IN PATIENTS WITH CONGENITAL HEART DISEASE24COMPUTATIONAL THREE-DIMENSION LEFT ATRIAL APPENDAGE WALL THICKNESS MAPS AND HISTOLOGICAL ANALYSIS TO GUIDE LEFT ATRIAL APPENDAGE ELECTRICAL ISOLATIONPacing & Devices25IDENTIFYING THE OPTIMAL LOCATION FOR LV ENDOCARIDAL PACING:RESULTS FROM A MULTICENTRE INTERNATIONAL REGISTRY OF LV ENDOCARDIAL PACING26UK MULTI-CENTRE REGISTRY OF TRANSVENOUS LEAD EXTRACTION: CLINICAL OUTCOME USING TRACTION, CUTTING SHEATHS AND LASER TECHNIQUES27SKIN FISTULA FORMATION - A NEW EXPERIENCE WITH THE NEW TYRX ABSORBABLE ANTIMICROVIAL ENVELOPE28BIFOCAL RIGHT VENTRICULAR PACING IN PATIENTS WITH FAILED CORONARY-SINUS LEAD IMPLANTS: LONG-TERM RESULTS FROM MULTICENTRE REGISTRY29REAL TIME X-MRI GUIDED LEFT VENTRICULAR LEAD IMPLANTATION FOR TARGETED DELIVERY OF CARDIAC RESYNCHRONIZATION THERAPY30ACUTE AND CHRONIC PERFORMANCE OF COMMUNICATING LEADLESS ANTI-TACHYCARDIA PACEMAKER AND SUBCUTANEOUS IMPLANTABLE DEFIBRILLATOR. Europace 2016. [DOI: 10.1093/europace/euw271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Michael K, Whittaker S, Varma S, Bekele E, Langhi L, Hodgkinson J, Harris B. Framework for the assessment of interaction between CO2 geological storage and other sedimentary basin resources. Environ Sci Process Impacts 2016; 18:164-175. [PMID: 26767550 DOI: 10.1039/c5em00539f] [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: 06/05/2023]
Abstract
Sedimentary basins around the world considered suitable for carbon storage usually contain other natural resources such as petroleum, coal, geothermal energy and groundwater. Storing carbon dioxide in geological formations in the basins adds to the competition for access to the subsurface and the use of pore space where other resource-based industries also operate. Managing potential impacts that industrial-scale injection of carbon dioxide may have on other resource development must be focused to prevent potential conflicts and enhance synergies where possible. Such a sustainable coexistence of various resource developments can be accomplished by implementing a Framework for Basin Resource Management strategy (FBRM). The FBRM strategy utilizes the concept of an Area of Review (AOR) for guiding development and regulation of CO2 geological storage projects and for assessing their potential impact on other resources. The AOR is determined by the expected physical distribution of the CO2 plume in the subsurface and the modelled extent of reservoir pressure increase resulting from the injection of the CO2. This information is used to define the region to be characterised and monitored for a CO2 injection project. The geological characterisation and risk- and performance-based monitoring will be most comprehensive within the region of the reservoir containing the carbon dioxide plume and should consider geological features and wells continuously above the plume through to its surface projection; this region defines where increases in reservoir pressure will be greatest and where potential for unplanned migration of carbon dioxide is highest. Beyond the expanse of the carbon dioxide plume, geological characterisation and monitoring should focus only on identified features that could be a potential migration conduit for either formation water or carbon dioxide.
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Affiliation(s)
- K Michael
- CSIRO Energy, ARRC, 26 Dick Perry Ave, Kensington, WA 6151, Australia.
| | - S Whittaker
- CSIRO Energy, ARRC, 26 Dick Perry Ave, Kensington, WA 6151, Australia.
| | - S Varma
- Western Australian Department of Mines and Petroleum, Perth, Australia
| | - E Bekele
- CSIRO Land and Water, Perth, Australia
| | - L Langhi
- CSIRO Energy, ARRC, 26 Dick Perry Ave, Kensington, WA 6151, Australia.
| | - J Hodgkinson
- CSIRO Energy, ARRC, 26 Dick Perry Ave, Kensington, WA 6151, Australia.
| | - B Harris
- Curtin University, Perth, Australia
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Boles U, Enriquez A, Lee H, Reigret D, Baranchuk A, Redfearn D, Simpson C, Abdoullah H, Michael K. VOLTAGE GUIDED IDENTIFICATION OF CRITICAL PULMONARY VEIN CONNECTIONS IMPROVES Outcomes AFTER PULMONARY VEIN ISOLATION. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.496] [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: 10/22/2022] Open
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Kreiss CM, Michael K, Lucassen M, Jutfelt F, Motyka R, Dupont S, Pörtner HO. Ocean warming and acidification modulate energy budget and gill ion regulatory mechanisms in Atlantic cod (Gadus morhua). J Comp Physiol B 2015. [PMID: 26219611 PMCID: PMC4568026 DOI: 10.1007/s00360-015-0923-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Ocean warming and acidification are threatening marine ecosystems. In marine animals, acidification is thought to enhance ion regulatory costs and thereby baseline energy demand, while elevated temperature also increases baseline metabolic rate. Here we investigated standard metabolic rates (SMR) and plasma parameters of Atlantic cod (Gadus morhua) after 3–4 weeks of exposure to ambient and future PCO2 levels (550, 1200 and 2200 µatm) and at two temperatures (10, 18 °C). In vivo branchial ion regulatory costs were studied in isolated, perfused gill preparations. Animals reared at 18 °C responded to increasing CO2 by elevating SMR, in contrast to specimens at 10 °C. Isolated gills at 10 °C and elevated PCO2 (≥1200 µatm) displayed increased soft tissue mass, in parallel to increased gill oxygen demand, indicating an increased fraction of gill in whole animal energy budget. Altered gill size was not found at 18 °C, where a shift in the use of ion regulation mechanisms occurred towards enhanced Na+/H+-exchange and HCO3− transport at high PCO2 (2200 µatm), paralleled by higher Na+/K+-ATPase activities. This shift did not affect total gill energy consumption leaving whole animal energy budget unaffected. Higher Na+/K+-ATPase activities in the warmth might have compensated for enhanced branchial permeability and led to reduced plasma Na+ and/or Cl− concentrations and slightly lowered osmolalities seen at 18 °C and 550 or 2200 µatm PCO2 in vivo. Overall, the gill as a key ion regulation organ seems to be highly effective in supporting the resilience of cod to effects of ocean warming and acidification.
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Affiliation(s)
- C M Kreiss
- Alfred Wegener Institute, Helmholtz Center for Marine and Polar Research, Integrative Ecophysiology, Am Handelshafen 12, 27570, Bremerhaven, Germany.
| | - K Michael
- Alfred Wegener Institute, Helmholtz Center for Marine and Polar Research, Integrative Ecophysiology, Am Handelshafen 12, 27570, Bremerhaven, Germany
| | - M Lucassen
- Alfred Wegener Institute, Helmholtz Center for Marine and Polar Research, Integrative Ecophysiology, Am Handelshafen 12, 27570, Bremerhaven, Germany
| | - F Jutfelt
- Department of Biological and Environmental Sciences, University of Gothenburg, PO Box 463, 405 30, Gothenburg, Sweden.,The Sven Lovén Centre for Marine Sciences, Kristineberg 566, 451 78, Fiskebäckskil, Sweden
| | - R Motyka
- Department of Biological and Environmental Sciences, University of Gothenburg, PO Box 463, 405 30, Gothenburg, Sweden
| | - S Dupont
- The Sven Lovén Centre for Marine Sciences, Kristineberg 566, 451 78, Fiskebäckskil, Sweden
| | - H-O Pörtner
- Alfred Wegener Institute, Helmholtz Center for Marine and Polar Research, Integrative Ecophysiology, Am Handelshafen 12, 27570, Bremerhaven, Germany
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Barake W, Enriquez A, Caldwell J, Ali FS, Conde D, Redfearn D, Michael K, Abdollah H, Simpson C, Bayés de Luna A, Baranchuk A. ADVANCED INTERATRIAL BLOCK PREDICTS ATRIAL FIBRILLATION POST CAVOTRICUSPID ISTHMUS ABLATION FOR TYPICAL ATRIAL FLUTTER. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.286] [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] Open
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21
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Enriquez A, Ali FS, Michael K, Simpson C, Abdollah H, Jansen M, Baranchuk A, Redfearn D. LOW-VOLTAGE AREA BUT NOT THE FRACTIONATION SURFACE AREA PREDICTS RECURRENCES AFTER STEPWISE ABLATION OF PERSISTENT ATRIAL FIBRILLATION. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.288] [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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Sánchez FJ, Calle F, Sanchez-Garcia M, Calleja E, Muñoz E, Molloy CH, Somerford DJ, Koschnick FK, Michael K, Spaeth JM. Luminescence of Be-doped GaN layers grown by molecular beam epitaxy on Si (111). ACTA ACUST UNITED AC 2014. [DOI: 10.1557/s1092578300000910] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Low temperature photoluminescence spectra of Be-doped layers grown on Si (111) by molecular beam epitaxy have been analyzed. Emissions at 3.466 eV and 3.384 eV, and a broad band centered at 2.4-2.5 eV are observed. Their evolution with temperature and excitation power, and time resolved PL measurements ascribe an excitonic character for the luminescence at 3.466 eV, whereas the emission at 3.384 eV is associated with a donor-acceptor pair transition. This recombination involves residual donors and Be-related acceptors, which are located around 90meV above the valence band, confirming Be as the shallowest acceptor reported in GaN. The intensity of the band at 2.4-2.5 eV increases with the Be content. This emission involves a band of deep acceptors generated by Be complex defects, as suggested by the parameter g = 2.008 ± 0.003 obtained by photoluminescence-detected electron paramagnetic resonance.
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Mohajer K, Haley C, Simpson C, Abdollah H, Baranchuk A, Redfearn D, Michael K. Comparison of Dabigatran and Conventional Anticoagulation Practices in Patients Undergoing Elective Left Atrial Ablation. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.293] [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: 11/16/2022] Open
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Caldwell J, Koppikar S, Barake W, Redfearn D, Michael K, Simpson C, Hopman W, Baranchuk A. Prolonged P Wave Duration Is Associated With a Need for Substrate Ablation at Redo AF Ablation. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.373] [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] Open
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Wilson N, Jarman J, Brander B, Michael K. SURVEY OF HOT WATER TEMPERATURES IN CAMPGROUNDS: ELEVATED SCALDING RISK AND ENERGY WASTAGE. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040580c.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: 11/04/2022]
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Caldwell J, Somani R, Kim S, Winterborn A, Simpson C, Abdollah H, Baranchuk A, Damian R, Michael K. 609 Biventricular Defibrillation May be More Effective Than the Conventional Can-To-Coil Approach. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.547] [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: 10/27/2022] Open
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Kameda G, Kempf W, Oschlies I, Michael K, Seifert G, Längler A. Nodal Anaplastic Large-Cell Lymphoma ALK-1− with CD30+ Cutaneous Lymphoproliferation Treated with Mistletoe: Spontaneous Remission or Treatment Response? Klin Padiatr 2011; 223:364-7. [DOI: 10.1055/s-0031-1285914] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- G. Kameda
- Department of Integrative Pediatric und Adolescent Medicine
| | | | | | - K. Michael
- Department of Integrative Pediatric und Adolescent Medicine
| | - G. Seifert
- Department of Pediatric Oncology and Hematology
| | - A. Längler
- Department of Integrative Pediatric und Adolescent Medicine
- School of Medicine, Center for Integrative Medicine
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Andersson T, Magnusson A, Bryngelsson IL, Frobert O, Henriksson KM, Edvardsson N, Poci D, Polovina M, Potpara T, Licina M, Mujovic N, Kocijancic A, Simic D, Ostojic MC, Providencia RA, Botelho A, Trigo J, Nascimento J, Quintal N, Mota P, Leitao-Marques AM, Bosch RF, Kirch W, Rosin L, Willich SN, Pittrow D, Bonnemeier H, Valenza MC, Martin L, Munoz Casaubon T, Valenza G, Botella M, Serrano M, Valenza B, Cabrera I, Anderson K, Benzaquen BS, Koziolova N, Nikonova J, Shilova Y, Scherr D, Narayan S, Wright M, Krummen D, Jadidi A, Jais P, Haissaguerre M, Hocini M, Hunter R, Liu Y, Lu Y, Wang W, Schilling RJ, Bernstein S, Wong B, Rooke R, Vasquez C, Shah R, Rosenberg S, Chinitz L, Morley G, Bashir Choudhary M, Holmqvist F, Carlson J, Nilsson HJ, Platonov PG, Jadidi AS, Cochet H, Miyazaki S, Shah AJ, Scherr D, Marrouche N, Haissaguerre M, Jais P, Calvo N, Nadal M, Andreu D, Tamborero D, Diaz FE, Berruezo A, Brugada J, Mont L, Fichtner S, Hessling G, Estner HL, Jilek C, Reents T, Ammar S, Wu J, Deisenhofer I, Nakanishi H, Kashiwase K, Hirata A, Wada M, Ueda Y, Skoda J, Neuzil P, Popelova J, Petru J, Sediva L, Lavergne T, Le Heuzey JY, Mousseaux E, Hersi A, Alhabib K, Alfaleh H, Sulaiman K, Almahmeed W, Alsuwidi J, Amin H, Reddy VY, Almotarreb A, Pang HWK, Redfearn DP, Simpson CS, Michael K, Pereira EJ, Munt PW, Fitzpatrick MF, Baranchuk A, Revishvili AS, Uldry L, Simonyan G, Dzhordzhikiya T, Sopov O, Kalinin V, Locati ET, Vecchi AM, Cattafi G, Sachero A, Lunati M, Sayah S, Forclaz A, Alizadeh A, Nazari N, Hekmat M, Moradi M, Zeighami M, Ghanji H, Suzuki K, Takagi M, Maeda K, Tatsumi H, Virag N, Gomes C, Meireles A, Anjo D, Roque C, Vieira P, Lagarto V, Reis H, Torres S, Toth A, Vago H, Hocini M, Takacs P, Edes E, Marki A, Balazs GY, Huttl K, Merkely B, Lainis F, Buckley MM, Johns EJ, Seifer CM, Vesin JM, Daba L, Liebrecht K, Pietrucha AZ, Borowiec A, Mroczek-Czernecka D, Bzukala I, Wnuk M, Piwowarska W, Nessler J, Toquero Ramos J, Jais P, Perez Pereira E, Mitroi C, Castro Urda V, Fernandez Villanueva JM, Corona Figueroa A, Hernandez Reina L, Fernandez Lozano I, Bartoletti A, Bocconcelli P, Giuli S, Kappenberger L, Massa R, Svetlich C, Tarsi G, Tronconi F, Vitale E, Pietrucha AZ, Bzukala I, Wnuk M, Stryjewski P, Konduracka E, Haissaguerre M, Wegrzynowska M, Kruszelnicka O, Nessler J, Lousinha A, Labandeiro J, Antunes E, Silva S, Alves S, Timoteo A, Oliveira M, Sehra R, Cruz Ferreira R, Pietrucha AZ, Wnuk M, Jedrzejczyk-Spaho J, Bzukala I, Kruszelnicka O, Wegrzynowska M, Piwowarska W, Nessler J, Krummen D, Briggs C, Rappel WJ, Narayan S, Sediva L, Neuzil P, Petru J, Skoda J, Janotka M, Chovanec M, Yamashiro K, Takami K, Sakamoto Y, Satoh K, Suzuki T, Nakagawa H, Romanov A, Pokushalov E, Artemenko S, Shabanov V, Stenin I, Elesin D, Turov A, Yakubov A, Hioki M, Matsuo S, Ito K, Narui R, Yamashita S, Sugimoto K, Yoshimura M, Yamane T, Pokushalov E, Romanov A, Artemenko S, Shabanov V, Elesin D, Stenin I, Turov A, Yakubov A, Miyazaki S, Shah AJ, Hocini M, Jais P, Haissaguerre M, Di Biase L, Gallinghouse JD, Rajappan K, Kautzner J, Dello Russo A, Tondo C, Lorgat F, Natale A, Balta O, Buenz K, Paessler M, Anders H, Horlitz M, Deneke T, Lickfett L, Liberman I, Linhart M, Andrie R, Mittmann-Braun E, Stockigt F, Nickenig G, Schrickel J, Tilz R, Rillig A, Feige B, Metzner A, Fuernkranz A, Burchard A, Wissner E, Ouyang F, Betts TR, Jones MA, Wong KCK, Qureshi N, Bashir Y, Rajappan K, Romanov A, Pokushalov E, Corbucci G, Artemenko S, Shabanov V, Turov A, Losik D, Selina V, Crandall MA, Daniels C, Daoud E, Kalbfleisch S, Yamaji H, Murakami T, Kawamura H, Murakami M, Hina K, Kusachi S, Dakos G, Vassilikos V, Paraskevaidis S, Mantziari A, Theophylogiannakos S, Chouvarda I, Chatzizisis I, Styliadis I, Kimura T, Fukumoto K, Nishiyama N, Aizawa Y, Fukuda Y, Sato T, Miyoshi S, Takatsuki S, Navarrete Casas AJ, Ali I, Conte FC, Moran M, Graham BG, Kalejs O, Lacis R, Stradins P, Koris A, Putnins I, Vikmane M, Lejnieks A, Erglis A, Estrada A, Perez Silva A, Castrejon S, Doiny D, Merino JL, Baranchuk A, Greiss I, Simpson CS, Abdollah H, Redfearn DP, Buys-Topart M, Nitzsche R, Thibault B, Deisenhofer I, Reents T, Ammar S, Fichtner S, Kathan S, Kolb C, Hessling G, Reif S, Schade S, Taggeselle J, Frey A, Birkenhagen A, Kohler S, Schmidt M, Cano Perez O, Buendia F, Igual B, Osca JM, Sanchez JM, Sancho-Tello MJ, Olague JM, Salvador A, Calvo N, Tolosana JM, Fernandez-Armenta J, Matas M, Barbarin MC, Berruezo A, Brugada J, Mont L, Habibovic M, Van Den Broek KC, Theuns DAMJ, Jordaens L, Alings M, Van Der Voort PH, Pedersen SS, Pupita G, Molini S, Brambatti M, Capucci A, Molodykh S, Idov EM, Belyaev OV, Segreti L, Soldati E, Zucchelli G, Di Cori A, Viani S, Paperini L, De Lucia R, Bongiorni MG, Binner L, Taborsky M, Bello D, Heuer H, Ramza B, Jenniskens I, Johnson WB, Silvetti MS, Rava' L, Russo MS, Di Mambro C, Ammirati A, Gimigliano G, Prosperi M, Drago F, Santos AR, Picarra B, Semedo P, Dionisio P, Matos R, Leitao M, Jacinto A, Trinca M, Mazzone P, Ciconte G, Marzi A, Paglino G, Vergara P, Sora N, Gulletta S, Della Bella P, Koppitz P, Fach A, Hobbiesiefken S, Fiehn E, Hambrecht R, Sperzel J, Jung M, Schmitt J, Pajitnev D, Burger H, Burger H, Goebel G, Ehrlich W, Walther T, Ziegelhoeffer T, Vancura V, Wichterle D, Melenovsky V, Kautzner J, Glikson M, Goldenberg G, Segev A, Dvir D, Kuzniec J, Finkelstein A, Hay I, Guetta V, Choo WK, Gupta S, Kirkfeldt R, Johansen J, Nohr E, Moller M, Arnsbo P, Nielsen J, Santos AR, Picarra B, Semedo P, Dionisio P, Matos R, Leitao M, Banha M, Trinca M, Stojanov P, Raspopovic S, Vasic D, Savic D, Nikcevic G, Jovanovic V, Defaye P, Mondesert B, Mbaye A, Cassagneau R, Gagniere V, Jacon J, Sanfins V, Reis HR, Nobre JN, Martins VM, Duarte LD, Morais CM, Conceicao JC, Hero M, Rey JL, Thibault B, Ducharme A, Simpson C, Stuglin C, Blier L, Senaratne M, Khaykin Y, Pinter A, Mlynarska A, Mlynarski R, Sosnowski M, Wilczek J, Iorgulescu C, Bogdan S, Constantinescu D, Caldararu C, Dorobantu M, Radu A, Vatasescu RG, Yusu S, Ikeda T, Mera H, Miwa Y, Abe A, Miyakoshi M, Tsukada T, Yoshino H, Nayar V, Cantelon P, Rawling A, Belham MRD, Pugh PJ, Osca Asensi J, Sanchez JM, Cano O, Tejada D, Munoz B, Rodriguez M, Sancho-Tello MJ, Olague J, Wecke L, Van Hunnik A, Thompson T, Di Carlo L, Zdeblick M, Auricchio A, Prinzen F, Doltra Magarolas A, Bijnens B, Silva E, Penela D, Mont L, Tolosana JM, Brugada J, Sitges M, Ofman P, Navaravong L, Leng J, Peralta A, Hoffmeister P, Levine R, Cook J, Stoenescu M, Tettamanti ME, Revilla Orodea A, Lopez Diaz J, De La Fuente Galan L, Arnold R, Garcia Moran E, San Roman Calvar JA, Gomez Salvador I, Nakamura K, Takami M, Keida T, Mesato A, Higa S, Shimabukuro M, Masuzaki H, Proietti R, Sagone A, Domenichini G, Burri H, Valzania C, Biffi M, Sunthorn H, Gavaruzzi G, Foulkes H, Boriani G, Koh S, Hou W, Rosenberg S, Snell J, Poore J, Dalal N, Bornzin G, Kloppe A, Mijic D, Bogossian H, Ninios I, Zarse M, Lemke B, Guedon-Moreau L, Kouakam C, Klug D, Marquie C, Ziglio F, Kacet S, Mohamed Fereig Hamed H, Hamdy AMAL, Abd El Aziz AHMED, Nabih MRVAT, Hamdy REHAB, Yaminisaharif A, Davoudi GH, Kasemisaeid A, Sadeghian S, Vasheghani Farahani A, Yazdanifard P, Shafiee A, Alonso C, Grimard C, Jauvert G, Lazarus A, Fernandez-Armenta J, Berruezo A, Mont LL, Sitges M, Andreu D, Ortiz-Perez J, Caralt T, Brugada J, Escudero J, Perez F, Griffith KM, Ferreyra R, Urena P, Demas M, Muratore C, Mazzetti H, Guardado J, Sanfins V, Fernandes M, Pereira VH, Canario-Almeida F, Ferreira F, Rodrigues B, Almeida J, Sokal A, Jedrzejczyk E, Lenarczyk R, Pluta S, Kowalski O, Pruszkowska P, Swiatkowski A, Kalarus Z, Heinke M, Ismer B, Kuehnert H, Heinke T, Surber R, Osypka N, Prochnau D, Figulla HR, Iacopino S, Landolina M, Proclemer A, Padeletti L, Calvi V, Pierantozzi A, Di Stefano P, Boriani G, Bauer A, Bode F, Le Gal F, Deharo JC, Delay M, Nitzsche R, Clementy J, Kawamura M, Munetsugu Y, Tanno K, Kobayashi Y, Cannom D, Hosoda J, Ishikawa T, Andoh K, Nobuyoshi M, Fujii S, Shizuta S, Kimura T, Isshiki T, Castel MA, Tolosana JM, Perez-Villa F, Mont L, Sitges M, Vidal B, Brugada J, Pluta S, Lenarczyk R, Kowalski O, Pruszkowska-Skrzep P, Sokal A, Szulik M, Kukulski T, Kalarus Z, Gianfranchi L, Bettiol K, Pacchioni F, Alboni P, Abu Sham'a R, Buber J, Nof E, Kuperstein R, Feinberg M, Luria D, Eldar M, Glikson M, Parks K, Stone JR, Singh JP, Hatzinikolaou-Kotsakou E, Kotsakou M, Beleveslis TH, Moschos G, Reppas E, Latsios P, Tsakiridis K, Kazemisaeid A, Davoodi G, Yamini Sharif A, Sadeghian S, Sheikhvatan M, Toniolo M, Zanotto G, Rossi A, Tomasi L, Vassanelli C, Versteeg H, Van Den Broek KC, Theuns DAMJ, Mommersteeg PMC, Alings M, Van Der Voort PH, Jordaens L, Pedersen SS, Vergara G, Blauer J, Ranjan R, Vijayakumar S, Kholmovski E, Volland N, Macleod R, Marrouche N, Aguinaga Arrascue LE, Bravo A, Garcia Freire P, Gallardo P, Hasbani E, Dantur J, Quintana R, Adragao PP, Cavaco D, Parreira L, Reis Santos K, Carmo P, Miranda R, Marcelino S, Cabrita D, Sommer P, Gaspar T, Rolf S, Arya A, Piorkowski C, Hindricks G, Valles Gras E, Bazan V, Portillo L, Suarez F, Bruguera J, Marti J, Huo Y, Arya A, Richter S, Schoenbauer R, Sommer P, Hindricks G, Piorkowski C, Rivas N, Casaldaliga J, Roca I, Dos L, Perez-Rodon J, Pijuan A, Garcia-Dorado D, Moya A, Carter HB, Garg A, Hegrenes J, Sih HJ, Teplitsky LR, Kuroki K, Tada H, Seo Y, Ishizu T, Igawa M, Sekiguchi Y, Kuga K, Aonuma K, Rodriguez A C, Mejias J, Hidalgo P, Hidalgo L JA, Orczykowski M, Derejko P, Walczak F, Szufladowicz E, Urbanek P, Bodalski R, Bieganowska K, Szumowski L, Peichl P, Wichterle D, Cihak R, Skalsky I, Kautzner J, Kubus P, Vit P, Zaoral L, Peichl P, Gebauer RA, Fiala M, Janousek J, Hiroshima K, Goya M, Ohe M, Hayashi K, Makihara Y, Nagashima M, An Y, Nobuyoshi M, Schloesser M, Lawrenz T, Meyer Zu Vilsendorf D, Strunk-Mueller C, Stellbrink C, Papagiannis J, Avramidis D, Kokkinakis C, Kirvassilis G, Eidelman G, Arenal A, Datino T, Atienza F, Gonzalez Torrecilla E, Miracle A, Hernandez J, Fernandez Aviles F, Ene E, Caldararu C, Iorgulescu C, Dorobantu M, Vatasescu RG, Insulander P, Bastani H, Braunschweig F, Drca N, Kenneback G, Schwieler J, Tapanainen J, Jensen-Urstad M, Andrea B, Andrea EMA, Maciel WM, Siqueira LS, Cosenza RC, Mittidieri FM, Farah SF, Atie JA, Kanoupakis E, Kallergis E, Mavrakis H, Goudis C, Saloustros I, Malliaraki N, Chlouverakis G, Vardas P, Bonnes JL, Jaspers Focks J, Westra SW, Brouwer MA, Smeets JLRM, Inama G, Pedrinazzi C, Landolina M, Oliva F, Senni M, Proclemer A, Zoni Berisso M, Mostov S, Haim M, Nevzorov R, Hasadi D, Starsberg B, Porter A, Kuschyk J, Schoene A, Streitner F, Veltmann CG, Schimpf R, Borggrefe M, Luesebrink U, Gardiwal A, Oswald H, Koenig T, Duncker D, Klein G, Bastiaenen R, Batchvarov V, Atty O, Cheng JH, Behr ER, Gallagher MM, Starrenburg AH, Kraaier K, Pedersen SS, Scholten MF, Van Der Palen J, Adhya S, Smith LA, Zhao T, Bannister C, Kamdar RH, Martinelli M, Siqueira S, Greco R, Nishioka SAD, Pedrosa AAA, Alkmim-Teixeira R, Peixoto GL, Costa R, Pedersen SS, Versteeg H, Nielsen JC, Mortensen PT, Johansen JB, Kwasniewski W, Filipecki A, Urbanczyk-Swic D, Orszulak W, Trusz - Gluza M, Jimenez-Candil J, Hernandez J, Morinigo J, Ledesma C, Martin-Luengo C, Vogtmann T, Gomer M, Stiller S, Kuehlkamp V, Zach G, Loescher S, Kespohl S, Baumann G, Snell JD, Korsun N, Rooke R, Snell JR, Morley B, Bharmi R, Nabutovsky Y, Mollerus M, Naslund L, Meyer A, Lipinski M, Libey B, Dornfeld K, Jimenez-Candil J, Hernandez J, Martin A, Gallego M, Morinigo J, Ledesma C, Martin-Luengo C, De Bie MK, Van Rees JB, Borleffs CJ, Thijssen J, Jukema JW, Schalij MJ, Van Erven L, Van Der Velde ET, Witteman TA, Foeken H, Van Erven L, Schalij MJ, Szili-Torok T, Akca F, Caliskan K, Ten Cate F, Jordaens L, Michels M, Cozma DC, Petrescu L, Mornos C, Dragulescu SI, Groeneweg JA, Velthuis BK, Cox MGPJ, Loh P, Dooijes D, Cramer MJ, De Bakker JMT, Hauer RNW, Park SD, Shin SH, Woo SI, Kwan J, Park KS, Kim DH, Kwan J, Iorio A, Vitali Serdoz L, Brun F, Daleffe E, Zecchin M, Dal Ferro M, Santangelo S, Sinagra GF, Ouali S, Hammemi R, Hammas S, Kacem S, Gribaa R, Neffeti E, Remedi F, Boughzela E, Korantzopoulos P, Letsas K, Christogiannis Z, Kalantzi K, Ntorkos A, Goudevenos J, Foley PWX, Yung L, Barnes E, Munetsugu Y, Tanno K, Kikuchi M, Ito H, Miyoshi F, Kawamura M, Kobayashi Y, Pecini R, Marott JM, Jensen GB, Theilade J, Mine T, Kodani T, Masuyama T, Mozos IM, Serban C, Costea C, Susan L, Barthel P, Mueller A, Malik M, Schmidt G, Schmidt G, Barthel P, Mueller A, Malik M, Karakurt O, Kilic H, Munevver Sari DR, Mroczek-Czernecka D, Pietrucha AZ, Borowiec A, Wnuk M, Bzukala I, Kruszelnicka O, Konduracka E, Nessler J, Kikuchi Y, Meireles A, Gomes C, Anjo D, Roque C, Pinheiro Vieira A, Lagarto V, Hipolito Reis A, Torres S, Nof E, Miller L, Kuperstein R, Eldar M, Glikson M, Luria D, Vedrenne G, Bruguiere E, Redheuil A. Poster Session 2. Europace 2011. [DOI: 10.1093/europace/eur222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Goldstein LB, Amarenco P, Zivin J, Messig M, Altafullah I, Callahan A, Hennerici M, MacLeod MJ, Sillesen H, Zweifler R, Michael K, Welch A. Statin Treatment and Stroke Outcome in the Stroke Prevention by Aggressive Reduction in Cholesterol Levels (SPARCL) Trial. Stroke 2009; 40:3526-31. [DOI: 10.1161/strokeaha.109.557330] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Larry B. Goldstein
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Pierre Amarenco
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Justin Zivin
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Michael Messig
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Irfan Altafullah
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Alfred Callahan
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Michael Hennerici
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Mary J. MacLeod
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Henrik Sillesen
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - Richard Zweifler
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - K. Michael
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
| | - A. Welch
- From the Department of Medicine, Division of Neurology, Duke University Medical Center (L.B.G.), Durham, NC; the Department of Neurology, Denis Diderot University (P.A.), Paris, France; the Department of Neurology, University of California (J.Z.), San Diego, Calif; Pfizer (M.M.), New York, NY; Minneapolis Clinic of Neurology (I.A.), Golden Valley, Minn; Neurologic Consultants (A.C.), Nashville, Tenn; the Department of Neurology, University of Heidelberg (M.H.), Mannheim, Germany; the Department of
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Gemzell-Danielsson K, Heikinheimo O, Inki P, Michael K, Sule P. O338 Double-blind placebo controlled study on the effect of misoprostol on easiness of repeat insertion of the LNG-IUS. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)60710-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Michael K, Arnot M, Cook P, Ennis-King J, Funnell R, Kaldi J, Kirste D, Paterson L. CO2 storage in saline aquifers I—Current state of scientific knowledge. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.egypro.2009.02.103] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dang C, Koehler A, Forschner T, Sehr P, Michael K, Pawlita M, Stockfleth E, Nindl I. E6/E7 expression of human papillomavirus types in cutaneous squamous cell dysplasia and carcinoma in immunosuppressed organ transplant recipients. Br J Dermatol 2006; 155:129-36. [PMID: 16792764 DOI: 10.1111/j.1365-2133.2006.07378.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND DNA of cutaneous human papillomavirus (HPV) types is frequently found in nonmelanoma skin cancer, and their E6 and E7 proteins can have transforming properties. OBJECTIVES To assess the biological activity of HPV types found in tumour tissues we examined HPV E6/E7 RNA expression and the antibody response to E6, E7 and L1 proteins. METHODS Thirty-one snap-frozen biopsies from six immunosuppressed organ transplant recipients representing seven squamous cell carcinomas (SCCs), one basal cell carcinoma, four actinic keratoses (AKs), seven normal skin and 12 verrucae vulgaris (Vv) were analysed for 24 cutaneous HPV types by an L1 DNA polymerase chain reaction (PCR)-based method. The presence of E6/E7 transcripts of HPV 5, 8, 9, 15 and 20 was investigated by real-time reverse transcription-PCR. HPV DNA load was determined for HPV 8, 9 and 15 in 11 biopsies. Antibody response was measured by enzyme-linked immunosorbent assay using affinity-purified, bacterially expressed complete viral proteins fused to glutathione S-transferase as antigens. RESULTS HPV DNA was detected in 25 of 31 tissue samples, indicating eight single and 17 multiple HPV infections. E6/E7 transcripts of HPV 8, 9 and 15 were found in low copy numbers in one SCC and three AKs, but not in normal skin or Vv. All four patients examined showed antibodies to cutaneous HPV antigens, but the antibody response did not correlate with E6/E7 expression detected in the tumour. CONCLUSIONS Transcriptional activity of the E6/E7 oncogenes in AK and SCC suggests an active role of HPV in the lesion.
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Affiliation(s)
- C Dang
- Department of Dermatology, Charité, Skin Cancer Center Charité, University Hospital of Berlin, Charitéplatz 1, D-10117 Berlin, Germany
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Affiliation(s)
- K Michael
- Rehabilitation Nursing Services, Johns Hopkins University School of Nursing, Baltimore, 525 N. Wolfe Street, Baltimore, MD 21205-7548, USA.
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Abstract
In the realm of muscle atrophy research, many studies address minute details of molecular function but few examine the effects of atrophy in terms of mobility, strength, endurance, and performance of activities of daily living. The relationship between impairment and functional limitation is the focus of this research review. A wide array of studies constitute this area of inquiry, including investigations as diverse and widely disparate as molecular chemistry and space travel and populations as different as rats, healthy young men, and elderly women. Thirty-four studies were selected based on their fit with the Enabling-Disabling Model. Three paradigms of atrophy and function emerged. Adaptation reflects the plastic nature of muscle when placed under certain conditions, ranging from disuse to high-resistance exercise. Injury/loss describes damage to muscle tissue from ischemia, medications, or reloading or reperfusion trauma. Also in this category is the loss of muscle that is seen with aging. Integrity relates to the muscle's tendency to protect itself and maintain structural adjacencies and cellular proportions. Based on the 3 muscle research paradigms, the relationship of muscle atrophy to function is portrayed as a bidirectional interaction wherein form and function have an influence on each other by way of physical changes, including those of adaptation, injury/loss, or integrity. A conceptual model is constructed to reflect this relationship.
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Affiliation(s)
- K Michael
- Johns Hopkins Bayview Medical Center, Baltimore, MD, USA
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Abstract
Axon reflex vasodilatation due to transcutaneous electrical stimulation in human skin was measured by laser Doppler imaging. Constant current pulses of 10 mA, 0.2 ms, delivered at 1 or 10 Hz for 2 min through a probe of 30 mm2 surface area did not induce a significant flare response, though this stimulus previously has been found supra-maximal for cutaneous polymodal (mechano-heat responsive) C-nociceptors in microneurography experiments. Pulses of the same strength from a pointed probe yielding a higher current density induced an extended and persistent flare. This type of stimulus previously has been proven to recruit mechano-insensitive C-units in microneurography experiments, in contrast to stimuli from the 30 mm2 probe. It is concluded that mechano-insensitive C-nociceptors and not polymodal C-units mediate the axon reflex flare in human skin.
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Affiliation(s)
- M Schmelz
- Department of Physiology and Experimental Pathophysiology, University of Erlangen-Nürnberg, Erlangen, Germany
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Michael K. Unbelievable: AIDS reporting in the business press. AIDS Anal Afr 2000; 10:1, 7-8. [PMID: 12349433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Michael K. Best practices: a review of company activity on HIV / AIDS in South Africa. AIDS Anal Afr 1999; 10:5-6. [PMID: 12322361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Abstract
Aminoglycoside antibiotics have recently emerged as an intriguing family of RNA binding molecules and they became leading structures for the design of novel RNA ligands. The demystification of the aminoglycoside-RNA recognition phenomenon is required for the development of superior binders. To explore the existence of multiple binding sites in a large RNA molecule, we have synthesized covalently linked symmetrical and nonsymmetrical dimeric aminoglycosides. These unnatural derivatives were compared to their natural "monomeric" counterparts in their ability to inhibit the Tetrahymena ribozyme. The dimeric aminoglycosides inhibit ribozyme function 20 to 1.2 x 10(3) fold more effectively than their natural parent compounds. The inhibition curves of dimeric aminoglycosides have characteristic shapes suggesting the presence of at least two high affinity-binding sites within the ribozyme's three-dimensional fold. The interaction of a dimeric aminoglycoside with two complementary sites of the RNA molecule is proposed. This binding motif may have implications on the development of new drugs targeting pivotal RNA molecules of bacterial and viral pathogens.
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Affiliation(s)
- K Michael
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla 92093-0358, USA
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Michael K. HIV / AIDS and the retail sector. AIDS Anal Afr 1999; 9:6-10. [PMID: 12349154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Michael K. Recovery of plutonium and americium from laboratory acidic waste solutions using tri-n-octylamine and octylphenyl-N-N- diisobutylcarbamoylmethylphosphine oxide. Talanta 1997; 44:2095-102. [DOI: 10.1016/s0039-9140(97)00079-9] [Citation(s) in RCA: 6] [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] [Received: 09/16/1996] [Revised: 02/12/1997] [Accepted: 02/24/1997] [Indexed: 10/27/2022]
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Abstract
BACKGROUND Mutations in the FBN1 gene are the cause of the Marfan syndrome, an autosomal dominant disorder with skeletal, ocular, and cardiovascular complications. Aneurysms or dissections of the ascending thoracic aorta are the major cardiovascular complications of the disorder. We tested the hypothesis that FBN1 mutations cause thoracic aortic aneurysms or dissections in patients who do not have the Marfan syndrome. METHODS AND RESULTS The FBN1 gene was screened for mutations by use of genomic DNA from two patients with thoracic aortic aneurysms who did not have the Marfan syndrome. Individual FBN1 exons were amplified with intron-based exon-specific primers; the DNA fragments were screened for mutations using single-stranded conformational polymorphism analysis; and aberrantly migrating bands were sequenced directly. We identified a missense mutation in one patient, D1155N in exon 27. Dermal fibroblasts from the affected individual were used to study the effect of the missense mutation D1155N on fibrillin-1 cellular processing. The mutation decreased the amount of fibrillin-1 deposited into the pericellular matrix. A second putative FBN1 mutation was identified in the second patient, P1837S in exon 44. Although this alteration was not observed in 234 chromosomes from unrelated individuals, the alteration may represent a rare polymorphism. CONCLUSIONS Results of these studies support the hypothesis that FBN1 mutations cause thoracic aortic aneurysms in patients who do not have the Marfan syndrome. This information is important for understanding the pathogenesis of aortic aneurysms and identification of individuals at risk for developing thoracic aortic aneurysms or dissections.
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Affiliation(s)
- D M Milewicz
- Department of Internal Medicine, University of Texas-Houston Medical School, USA.
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Koschnick FK, Michael K, Spaeth J, Beaumont B, Gibart P. Optical detection of electron nuclear double resonance on a residual donor in wurtzite GaN. Phys Rev B Condens Matter 1996; 54:R11042-R11045. [PMID: 9984981 DOI: 10.1103/physrevb.54.r11042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
The S- and C-glycosylated nonapeptides 1 and 2 were synthesized as analogs of the non-glycosylated LH-RH agonist buserelin (pGlu-His-Trp-Ser-Tyr-D-Ser(tBu)-Leu-Arg-Pro-NHEt) by segment condensation in solution. 1 and 2 differ from this peptide in the amino acid in position 6. In the first case (1), D-serine (tBu) is substituted by D-cysteine carrying a rhamnosyl residue, in the second case (2) D-alanine carrying a galactosyl moiety bound as C-glycoside is incorporated. The bioactivity of both glycopeptides as fertility drugs was determined from the dose dependent LH release in male rats. Additionally, in female rats the ovulation rate was assessed. As a result the analog 1 exhibits a similar biological activity as buserelin while analog 2 shows about 25% of this potency. Compared to buserelin the solubility of the analogs 1 and 2 in aqueous buffer is improved by more than two orders of magnitude due to the carbohydrate moieties.
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Affiliation(s)
- K Michael
- Institute for Organic Chemistry and Biochemistry, Technical University of Munich, Garching, Germany
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Michael K. Balance communication, protection to solve industrial noise problem. Occup Health Saf 1989; 58:16, 21-4. [PMID: 2594299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- K Michael
- Penn State University Department of Communication Disorders, State College
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Affiliation(s)
- S Sutor
- Johns Hopkins Hospital, Baltimore
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Vortmeyer D, Michael K. The effect of non-uniform flow distribution on concentration profiles and breakthrough curves of fixed bed adsorbers. Chem Eng Sci 1985. [DOI: 10.1016/0009-2509(85)87032-9] [Citation(s) in RCA: 28] [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: 11/29/2022]
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Abstract
The pig placenta is membranous throughout gestation and is suitable for investigation as a membrane system. The site of maternal-fetal exchange in vivo is used for permeability measurements in vitro and its surface area can be measured morphometrically. Fetal weight, placental weight, placental DNA content, placental macroscopic surface area, epithelio-chorial membrane area and thickness, and permeability in vitro to urea, tritiated water and sodium were measured in eight conceptuses aged between 79 and 111 days. These solutes were selected in order to facilitate comparison with data for sheep. Urea permeability per unit DNA increased throughout the last third of gestation although placental weight and DNA content ceased to increase before term.
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Abstract
Weight and macroscopic surface area of the pig placenta reached a maximum at day 101 and decreased thereafter. However, between day 101 and day 111 (full term 113/115) the epitheliochorial tissue layer increased in area due to the continuing formation of folds. Although lightweight placentae had small macroscopic surface areas, they possessed larger areas per unit weight throughout the second half of gestation. From day 70 to day 92 the lightest placentae, when compared with their heaviest litter mates, had from 15 to 150 per cent more macroscopic surface area per unit weight. In the middle third of gestation there was a phase of rapid cell division, in consequence of which mean cell size was reduced. By the beginning of the last third of gestation mean cell size had reached a steady value, with no demonstrable change thereafter. Cell multiplication continued until day 101 when growth in weight had ceased.
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Abstract
Placental weight and macroscopic surface area are closely correlated with fetal weight throughout the second half of gestation in the pig. The limiting effect of placental size on fetal weight becomes more obvious as gestation advances. Fetal weight/placental weight ratio increases as placental weight decreases. Within individual litters, lightweight placentas have up to 150% more macroscopic surface area per unit placental weight.
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Scheuch K, Navakatikjan AO, Tomaschewskaja LI, Karpenko AV, Michael K, Rudow B, Schreinicke G, Hüber B. [Neurotic tendencies and heart and circulatory changes occurring during the school year in teachers]. Z Arztl Fortbild (Jena) 1982; 76:610-615. [PMID: 6127846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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