1
|
Mettler SK, Nath HP, Grumley S, Orejas JL, Dolliver WR, Nardelli P, Yen AC, Kligerman SJ, Jacobs K, Manapragada PP, Abozeed M, Aziz MU, Zahid M, Ahmed AN, Terry NL, Elalami R, Estépar RSJ, Sonavane S, Billatos E, Wang W, Estépar RSJ, Richards JB, Cho MH, Diaz AA. Silent Airway Mucus Plugs in COPD and Clinical Implications. Chest 2023:S0012-3692(23)05825-7. [PMID: 38013161 DOI: 10.1016/j.chest.2023.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 11/15/2023] [Accepted: 11/21/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Airway mucus plugs are frequently identified on CT scans of patients with COPD with a smoking history without mucus-related symptoms (ie, cough, phlegm [silent mucus plugs]). RESEARCH QUESTION In patients with COPD, what are the risk and protective factors associated with silent airway mucus plugs? Are silent mucus plugs associated with functional, structural, and clinical measures of disease? STUDY DESIGN AND METHODS We identified mucus plugs on chest CT scans of participants with COPD from the COPDGene study. The mucus plug score was defined as the number of pulmonary segments with mucus plugs, ranging from 0 to 18, and categorized into three groups (0, 1-2, and ≥ 3). We determined risk and protective factors for silent mucus plugs and the associations of silent mucus plugs with measures of disease severity using multivariable linear and logistic regression models. RESULTS Of 4,363 participants with COPD, 1,739 had no cough or phlegm. Among the 1,739 participants, 627 (36%) had airway mucus plugs identified on CT scan. Risk factors of silent mucus plugs (compared with symptomatic mucus plugs) were older age (OR, 1.02), female sex (OR, 1.40), and Black race (OR, 1.93) (all P values < .01). Among those without cough or phlegm, silent mucus plugs (vs absence of mucus plugs) were associated with worse 6-min walk distance, worse resting arterial oxygen saturation, worse FEV1 % predicted, greater emphysema, thicker airway walls, and higher odds of severe exacerbation in the past year in adjusted models. INTERPRETATION Mucus plugs are common in patients with COPD without mucus-related symptoms. Silent mucus plugs are associated with worse functional, structural, and clinical measures of disease. CT scan-identified mucus plugs can complement the evaluation of patients with COPD.
Collapse
Affiliation(s)
- Sofia K Mettler
- Department of Medicine, Mount Auburn Hospital, Cambridge, MA; Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA.
| | - Hrudaya P Nath
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Scott Grumley
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - José L Orejas
- Harvard Medical School, Boston, MA; Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| | - Wojciech R Dolliver
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| | - Pietro Nardelli
- Harvard Medical School, Boston, MA; Department of Radiology, Brigham and Women's Hospital, Boston, MA
| | - Andrew C Yen
- Department of Radiology, University of California San Diego, San Diego, CA
| | | | - Kathleen Jacobs
- Department of Radiology, University of California San Diego, San Diego, CA
| | - Padma P Manapragada
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Mostafa Abozeed
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Muhammad Usman Aziz
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Mohd Zahid
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Asmaa N Ahmed
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Nina L Terry
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Rim Elalami
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| | - Ruben San José Estépar
- Harvard Medical School, Boston, MA; Department of Radiology, Brigham and Women's Hospital, Boston, MA
| | | | - Ehab Billatos
- Department of Medicine, Boston University School of Medicine, Boston, MA
| | - Wei Wang
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, MA
| | - Raúl San José Estépar
- Harvard Medical School, Boston, MA; Department of Radiology, Brigham and Women's Hospital, Boston, MA
| | - Jeremy B Richards
- Department of Medicine, Mount Auburn Hospital, Cambridge, MA; Harvard Medical School, Boston, MA
| | - Michael H Cho
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA; Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| | - Alejandro A Diaz
- Harvard Medical School, Boston, MA; Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA
| |
Collapse
|
2
|
Shields AD, Knutzen D, Khan M, Sobh O, Jacobs K. Prenatal diagnosis of familial porencephaly associated with fetal stroke. Ultrasound Obstet Gynecol 2023; 62:153-154. [PMID: 36722041 DOI: 10.1002/uog.26168] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/01/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Affiliation(s)
- A D Shields
- Department of Obstetrics and Gynecology, University of Connecticut School of Medicine, Farmington, CT, USA
| | - D Knutzen
- Department of Obstetrics and Gynecology, Baylor College of Medicine, San Antonio, TX, USA
| | - M Khan
- Department of Neurology, St Louis University School of Medicine, St Louis, MO, USA
| | - O Sobh
- Department of Obstetrics and Gynecology, Yale New Haven Health, Bridgeport Hospital, Bridgeport, CT, USA
| | - K Jacobs
- Department of Obstetrics, Gynecology and Women's Health, University of Minnesota School of Medicine, Minneapolis, MN, USA
| |
Collapse
|
3
|
Diaz AA, Orejas JL, Grumley S, Nath HP, Wang W, Dolliver WR, Yen A, Kligerman SJ, Jacobs K, Manapragada PP, Abozeed M, Aziz MU, Zahid M, Ahmed AN, Terry NL, San José Estépar R, Kim V, Make BJ, Han MK, Sonavane S, Washko GR, Cho M, San José Estépar R. Airway-Occluding Mucus Plugs and Mortality in Patients With Chronic Obstructive Pulmonary Disease. JAMA 2023; 329:1832-1839. [PMID: 37210745 PMCID: PMC10201404 DOI: 10.1001/jama.2023.2065] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/07/2023] [Indexed: 05/23/2023]
Abstract
Importance Airway mucus plugs are common in patients with chronic obstructive pulmonary disease (COPD); however, the association of airway mucus plugging and mortality in patients with COPD is unknown. Objective To determine whether airway mucus plugs identified on chest computed tomography (CT) were associated with increased all-cause mortality. Design, Setting, and Participants Observational retrospective analysis of prospectively collected data of patients with a diagnosis of COPD in the Genetic Epidemiology of COPD cohort. Participants were non-Hispanic Black or White individuals, aged 45 to 80 years, who smoked at least 10 pack-years. Participants were enrolled at 21 centers across the US between November 2007 and April 2011 and were followed up through August 31, 2022. Exposures Mucus plugs that completely occluded airways on chest CT scans, identified in medium- to large-sized airways (ie, approximately 2- to 10-mm lumen diameter) and categorized as affecting 0, 1 to 2, or 3 or more lung segments. Main Outcomes and Measures The primary outcome was all-cause mortality, assessed with proportional hazard regression analysis. Models were adjusted for age, sex, race and ethnicity, body mass index, pack-years smoked, current smoking status, forced expiratory volume in the first second of expiration, and CT measures of emphysema and airway disease. Results Among the 4483 participants with COPD, 4363 were included in the primary analysis (median age, 63 years [IQR, 57-70 years]; 44% were women). A total of 2585 (59.3%), 953 (21.8%), and 825 (18.9%) participants had mucus plugs in 0, 1 to 2, and 3 or more lung segments, respectively. During a median 9.5-year follow-up, 1769 participants (40.6%) died. The mortality rates were 34.0% (95% CI, 32.2%-35.8%), 46.7% (95% CI, 43.5%-49.9%), and 54.1% (95% CI, 50.7%-57.4%) in participants who had mucus plugs in 0, 1 to 2, and 3 or more lung segments, respectively. The presence of mucus plugs in 1 to 2 vs 0 and 3 or more vs 0 lung segments was associated with an adjusted hazard ratio of death of 1.15 (95% CI, 1.02-1.29) and 1.24 (95% CI, 1.10-1.41), respectively. Conclusions and Relevance In participants with COPD, the presence of mucus plugs that obstructed medium- to large-sized airways was associated with higher all-cause mortality compared with patients without mucus plugging on chest CT scans.
Collapse
Affiliation(s)
- Alejandro A. Diaz
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - José L. Orejas
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Scott Grumley
- Department of Radiology, University of Alabama at Birmingham
| | - Hrudaya P. Nath
- Department of Radiology, University of Alabama at Birmingham
| | - Wei Wang
- Harvard Medical School, Boston, Massachusetts
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Wojciech R. Dolliver
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Andrew Yen
- Department of Radiology, University of California, San Diego
| | - Seth J. Kligerman
- Department of Radiology, University of California, San Diego
- now with Department of Radiology, National Jewish Health, Denver, Colorado
| | - Kathleen Jacobs
- Department of Radiology, University of California, San Diego
| | | | - Mostafa Abozeed
- Department of Radiology, University of Alabama at Birmingham
| | | | - Mohd Zahid
- Department of Radiology, University of Alabama at Birmingham
| | - Asmaa N. Ahmed
- Department of Radiology, University of Alabama at Birmingham
| | - Nina L. Terry
- Department of Radiology, University of Alabama at Birmingham
| | - Ruben San José Estépar
- Harvard Medical School, Boston, Massachusetts
- Department of Radiology, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Victor Kim
- Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - Barry J. Make
- Division of Pulmonary, Critical Care and Sleep Medicine at National Jewish Health, Denver, Colorado
| | - MeiLan K. Han
- Division of Pulmonary and Critical Care at the University of Michigan, Ann Arbor
| | | | - George R. Washko
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Michael Cho
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Raúl San José Estépar
- Harvard Medical School, Boston, Massachusetts
- Department of Radiology, Brigham and Women’s Hospital, Boston, Massachusetts
| |
Collapse
|
4
|
Masutani EM, Chandrupatla RS, Wang S, Zocchi C, Hahn LD, Horowitz M, Jacobs K, Kligerman S, Raimondi F, Patel A, Hsiao A. Deep Learning Synthetic Strain: Quantitative Assessment of Regional Myocardial Wall Motion at MRI. Radiol Cardiothorac Imaging 2023; 5:e220202. [PMID: 37404797 PMCID: PMC10316298 DOI: 10.1148/ryct.220202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 03/07/2023] [Accepted: 03/20/2023] [Indexed: 07/06/2023]
Abstract
Purpose To assess the feasibility of a newly developed algorithm, called deep learning synthetic strain (DLSS), to infer myocardial velocity from cine steady-state free precession (SSFP) images and detect wall motion abnormalities in patients with ischemic heart disease. Materials and Methods In this retrospective study, DLSS was developed by using a data set of 223 cardiac MRI examinations including cine SSFP images and four-dimensional flow velocity data (November 2017 to May 2021). To establish normal ranges, segmental strain was measured in 40 individuals (mean age, 41 years ± 17 [SD]; 30 men) without cardiac disease. Then, DLSS performance in the detection of wall motion abnormalities was assessed in a separate group of patients with coronary artery disease, and these findings were compared with consensus results of four independent cardiothoracic radiologists (ground truth). Algorithm performance was evaluated by using receiver operating characteristic curve analysis. Results Median peak segmental radial strain in individuals with normal cardiac MRI findings was 38% (IQR: 30%-48%). Among patients with ischemic heart disease (846 segments in 53 patients; mean age, 61 years ± 12; 41 men), the Cohen κ among four cardiothoracic readers for detecting wall motion abnormalities was 0.60-0.78. DLSS achieved an area under the receiver operating characteristic curve of 0.90. Using a fixed 30% threshold for abnormal peak radial strain, the algorithm achieved a sensitivity, specificity, and accuracy of 86%, 85%, and 86%, respectively. Conclusion The deep learning algorithm had comparable performance with subspecialty radiologists in inferring myocardial velocity from cine SSFP images and identifying myocardial wall motion abnormalities at rest in patients with ischemic heart disease.Keywords: Neural Networks, Cardiac, MR Imaging, Ischemia/Infarction Supplemental material is available for this article. © RSNA, 2023.
Collapse
|
5
|
Patel K, Toomu S, Jacobs K, Pollema T, Ho G, Birgersdotter-Green U. VENOUS OCCLUSION DETECTED BY COMPUTED TOMOGRAPHY IS ASSOCIATED WITH TRANSVENOUS LEAD EXTRACTION DIFFICULTY. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)00474-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
|
6
|
Fiedler J, Berland K, Borchert JW, Corkery RW, Eisfeld A, Gelbwaser-Klimovsky D, Greve MM, Holst B, Jacobs K, Krüger M, Parsons DF, Persson C, Presselt M, Reisinger T, Scheel S, Stienkemeier F, Tømterud M, Walter M, Weitz RT, Zalieckas J. Perspectives on weak interactions in complex materials at different length scales. Phys Chem Chem Phys 2023; 25:2671-2705. [PMID: 36637007 DOI: 10.1039/d2cp03349f] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nanocomposite materials consist of nanometer-sized quantum objects such as atoms, molecules, voids or nanoparticles embedded in a host material. These quantum objects can be exploited as a super-structure, which can be designed to create material properties targeted for specific applications. For electromagnetism, such targeted properties include field enhancements around the bandgap of a semiconductor used for solar cells, directional decay in topological insulators, high kinetic inductance in superconducting circuits, and many more. Despite very different application areas, all of these properties are united by the common aim of exploiting collective interaction effects between quantum objects. The literature on the topic spreads over very many different disciplines and scientific communities. In this review, we present a cross-disciplinary overview of different approaches for the creation, analysis and theoretical description of nanocomposites with applications related to electromagnetic properties.
Collapse
Affiliation(s)
- J Fiedler
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway.
| | - K Berland
- Department of Mechanical Engineering and Technology Management, Norwegian University of Life Sciences, Campus Ås Universitetstunet 3, 1430 Ås, Norway
| | - J W Borchert
- 1st Institute of Physics, Georg-August-University, Göttingen, Germany
| | - R W Corkery
- Surface and Corrosion Science, Department of Chemistry, KTH Royal Institute of Technology, SE 100 44 Stockholm, Sweden
| | - A Eisfeld
- Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany
| | - D Gelbwaser-Klimovsky
- Schulich Faculty of Chemistry and Helen Diller Quantum Center, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - M M Greve
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway.
| | - B Holst
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway.
| | - K Jacobs
- Experimental Physics, Saarland University, Center for Biophysics, 66123 Saarbrücken, Germany.,Max Planck School Matter to Life, 69120 Heidelberg, Germany
| | - M Krüger
- Institute for Theoretical Physics, Georg-August-Universität Göttingen, 37073 Göttingen, Germany
| | - D F Parsons
- Department of Chemical and Geological Sciences, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, CA, Italy
| | - C Persson
- Centre for Materials Science and Nanotechnology, University of Oslo, P. O. Box 1048 Blindern, 0316 Oslo, Norway.,Department of Materials Science and Engineering, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
| | - M Presselt
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - T Reisinger
- Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - S Scheel
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
| | - F Stienkemeier
- Institute of Physics, University of Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany
| | - M Tømterud
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway.
| | - M Walter
- Institute of Physics, University of Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany
| | - R T Weitz
- 1st Institute of Physics, Georg-August-University, Göttingen, Germany
| | - J Zalieckas
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway.
| |
Collapse
|
7
|
Patel K, Munir MB, Darden D, Bhatia P, Jacobs K, Pollema T, Birgersdotter-Green UM. CI-563-03 GENDER-BASED DIFFERENCES IN LEAD PERFORATION RATES ON COMPUTED TOMOGRAPHY SCANS IN PATIENTS UNDERGOING TRANSVENOUS LEAD EXTRACTION: RESULTS FROM UC SAN DIEGO LEAD EXTRACTION DATABASE. Heart Rhythm 2022. [DOI: 10.1016/j.hrthm.2022.03.733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
8
|
Hurt B, Rubel MA, Masutani EM, Jacobs K, Hahn L, Horowitz M, Kligerman S, Hsiao A. Radiologist-supervised Transfer Learning: Improving Radiographic Localization of Pneumonia and Prognostication of Patients With COVID-19. J Thorac Imaging 2022; 37:90-99. [PMID: 34710891 PMCID: PMC8863580 DOI: 10.1097/rti.0000000000000618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Indexed: 11/25/2022]
Abstract
PURPOSE To assess the potential of a transfer learning strategy leveraging radiologist supervision to enhance convolutional neural network-based (CNN) localization of pneumonia on radiographs and to further assess the prognostic value of CNN severity quantification on patients evaluated for COVID-19 pneumonia, for whom severity on the presenting radiograph is a known predictor of mortality and intubation. MATERIALS AND METHODS We obtained an initial CNN previously trained to localize pneumonia along with 25,684 radiographs used for its training. We additionally curated 1466 radiographs from patients who had a computed tomography (CT) performed on the same day. Regional likelihoods of pneumonia were then annotated by cardiothoracic radiologists, referencing these CTs. Combining data, a preexisting CNN was fine-tuned using transfer learning. Whole-image and regional performance of the updated CNN was assessed using receiver-operating characteristic area under the curve and Dice. Finally, the value of CNN measurements was assessed with survival analysis on 203 patients with COVID-19 and compared against modified radiographic assessment of lung edema (mRALE) score. RESULTS Pneumonia detection area under the curve improved on both internal (0.756 to 0.841) and external (0.864 to 0.876) validation data. Dice overlap also improved, particularly in the lung bases (R: 0.121 to 0.433, L: 0.111 to 0.486). There was strong correlation between radiologist mRALE score and CNN fractional area of involvement (ρ=0.85). Survival analysis showed similar, strong prognostic ability of the CNN and mRALE for mortality, likelihood of intubation, and duration of hospitalization among patients with COVID-19. CONCLUSIONS Radiologist-supervised transfer learning can enhance the ability of CNNs to localize and quantify the severity of disease. Closed-loop systems incorporating radiologists may be beneficial for continued improvement of artificial intelligence algorithms.
Collapse
Affiliation(s)
- Brian Hurt
- Department of Radiology, University of California San Diego School of Medicine
| | - Meagan A Rubel
- Department of Radiology, University of California San Diego School of Medicine
| | - Evan M Masutani
- Department of Radiology, University of California San Diego School of Medicine
- Department of Bioengineering, University of California, San Diego, San Diego, CA
| | - Kathleen Jacobs
- Department of Radiology, University of California San Diego School of Medicine
| | - Lewis Hahn
- Department of Radiology, University of California San Diego School of Medicine
| | - Michael Horowitz
- Department of Radiology, University of California San Diego School of Medicine
| | - Seth Kligerman
- Department of Radiology, University of California San Diego School of Medicine
| | - Albert Hsiao
- Department of Radiology, University of California San Diego School of Medicine
| |
Collapse
|
9
|
Kim V, Dolliver WR, Nath HP, Grumley SA, Terry N, Ahmed A, Yen A, Jacobs K, Kligerman S, Diaz AA. Mucus plugging on computed tomography and chronic bronchitis in chronic obstructive pulmonary disease. Respir Res 2021; 22:110. [PMID: 33865371 PMCID: PMC8053272 DOI: 10.1186/s12931-021-01712-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/11/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
- Victor Kim
- Lewis Katz School of Medicine at Temple University, 3401 North Broad Street, 785 Parkinson Pavilion, Philadelphia, PA, 19140, USA.
| | - Wojciech R Dolliver
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Hrudaya P Nath
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Scott A Grumley
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Nina Terry
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Asmaa Ahmed
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Andrew Yen
- Department of Radiology, University of California San Diego, San Diego, CA, USA
| | - Kathleen Jacobs
- Department of Radiology, University of California San Diego, San Diego, CA, USA
| | - Seth Kligerman
- Department of Radiology, University of California San Diego, San Diego, CA, USA
| | - Alejandro A Diaz
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA, USA
| |
Collapse
|
10
|
Bhatia P, Chiou T, Svennberg E, Khoche S, Jacobs K, Pollema T, Pretorius V, Birgersdotter-Green U. Clinical significance of incidentally detected lead perforations by computed tomography. Pacing Clin Electrophysiol 2021; 44:936-942. [PMID: 33786829 DOI: 10.1111/pace.14229] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 02/24/2021] [Accepted: 03/21/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Computed tomography (CT) has an established role in detecting perforation of implanted pacemaker and defibrillator leads. The clinical significance of incidental finding of delayed lead perforation remains unclear. The aim of this study was to assess the prevalence of lead perforation as detected by CT in a cohort of patients undergoing transvenous laser lead extraction and characterize the association between finding of incidental lead perforation with periprocedural outcomes. METHODS Consecutive patients that underwent chest CT and lead extraction were retrospectively assessed for presence of lead perforation. A total of 143 patients and 348 leads were assessed. The finding of lead perforation was correlated with findings from peri-procedural transesophageal echocardiography (TEE) and outcomes of the lead extraction procedure. RESULTS Lead perforations (including perforations <5 mm and ≥5 mm) were detected in 66 (46%) patients and 73 (21%) leads. Lead perforation ≥5 mm were less common and detected in 13 (9%) of patients and 14 (4%) of leads. There was no significant difference in the rates of peri-procedural death, cardiac avulsion, cardiac tamponade or post-extraction pericardial effusion in patients with and without lead perforation. CONCLUSIONS Incidental delayed lead perforations detected by CT are common and do not correlate with significant TEE findings or adverse peri-procedural outcomes in patients undergoing lead extraction. Larger studies are needed to further characterize the frequency and safety of these findings.
Collapse
Affiliation(s)
- Prerana Bhatia
- Division of Cardiology, Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Tommy Chiou
- Division of Cardiology, Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Emma Svennberg
- Department of Medicine, Karolinska Institutet-Karolinksa University Hospital Huddinge, Stockholm, Sweden
| | - Swapnil Khoche
- Department of Anesthesiology, University of California San Diego, La Jolla, California, USA
| | - Kathleen Jacobs
- Department of Radiology, University of California San Diego, San Diego, California, USA
| | - Travis Pollema
- Division of Cardiothoracic Surgery, University of California San Diego, La Jolla, California, USA
| | - Victor Pretorius
- Division of Cardiothoracic Surgery, University of California San Diego, La Jolla, California, USA
| | - Ulrika Birgersdotter-Green
- Division of Cardiology, Department of Medicine, University of California San Diego, La Jolla, California, USA
| |
Collapse
|
11
|
Atkinson-Jones K, Jacobs K, Lau JYF. Associations between biased threat interpretations, fear and avoidance of pain and pain-linked disability in adolescent chronic pain patients. Eur J Pain 2021; 25:1031-1040. [PMID: 33400334 DOI: 10.1002/ejp.1724] [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] [Received: 03/06/2020] [Accepted: 12/28/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND Biased interpretations of ambiguous bodily threat situations characterize youth with chronic pain, and have been associated with functional disability for this population. Despite predictions by the fear-avoidance model of chronic pain, that fear and avoidance of pain explain the association between threat perceptions and disability, this has not yet been explored in youth with chronic pain. This study aimed to address this gap by investigating these proposed relationships, in addition to the association between bodily threat interpretations and daily aspects of disability (as well as social, and emotional impairments). METHOD Sixty-eight adolescents aged 11-18 years old with a clinical diagnosis of chronic pain completed an extended version of the Adolescent Interpretations of Bodily Threat task to assess interpretations of bodily and social threat situations, alongside measures of disability and fear and avoidance of pain. RESULTS Using mediation analysis, fear and avoidance of pain statistically accounted for the relationship between negative bodily threat interpretations and functional disability. Significant associations were also demonstrated between negative bodily threat interpretations and adolescent-reported impairments in daily, emotional and social impairments. Data revealed a significant relationship between negative social interpretations and daily functional disability. CONCLUSIONS Findings indicate the clinical relevance of bodily and social threat interpretations, and fear and avoidance of pain, for this population and raise further questions regarding the content-specificity of threat interpretations. SIGNIFICANCE Psychological theories of pain-associated impact and disability point to fear and avoidance of pain, as well as information-processing biases. Here, we present novel data showing the clinical relevance of bodily and social threat interpretations in explaining pain-related disability amongst youth with chronic pain, potentially by shaping fear and avoidance of pain. Longitudinal designs will be required to assess these temporally sensitive mediation pathways.
Collapse
Affiliation(s)
- K Atkinson-Jones
- Oxford Institute of Clinical Psychology, University of Oxford, Oxford, UK
| | - K Jacobs
- Oxford Centre for Children and Young People, Oxford University Hospitals, Oxford, UK
| | - J Y F Lau
- Psychology Department, King's College London, London, UK
| |
Collapse
|
12
|
Okajima Y, Come CE, Nardelli P, Sonavane SK, Yen A, Nath HP, Terry N, Grumley SA, Ahmed A, Kligerman S, Jacobs K, Lynch DA, Make BJ, Silverman EK, Washko GR, San José Estépar R, Diaz AA. Luminal Plugging on Chest CT Scan: Association With Lung Function, Quality of Life, and COPD Clinical Phenotypes. Chest 2020; 158:121-130. [PMID: 32017932 DOI: 10.1016/j.chest.2019.12.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 06/17/2019] [Revised: 12/12/2019] [Accepted: 12/22/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Mucous exudates occluding the lumen of small airways are associated with reduced lung function and mortality in subjects with COPD; however, luminal plugs in large airways have not been widely studied. We aimed to examine the associations of chest CT scan-identified luminal plugging with lung function, health-related quality of life, and COPD phenotypes. METHODS We randomly selected 100 smokers without COPD and 400 smokers with COPD from the COPDGene Study. Luminal plugging was visually identified on inspiratory CT scans at baseline and 5-year follow-up. The relationships of luminal plugging to FEV1, St. George's Respiratory Questionnaire (SGRQ) score, emphysema on CT scan (defined as the percentage of low attenuation area < 950 Hounsfield units [%LAA-950]), and chronic bronchitis were assessed using linear and logistic multivariable analyses. RESULTS Overall, 111 subjects (22%) had luminal plugging. The prevalence of luminal plugging was higher in subjects with COPD than those without COPD (25% vs 10%, respectively; P = .001). In subjects with COPD, luminal plugging was significantly associated with FEV1 % predicted (estimate, -6.1; SE, 2.1; P = .004) and SGRQ score (estimate, 4.9; SE, 2.4; P = .04) in adjusted models. Although luminal plugging was associated with log %LAA-950 (estimate, 0.43; SE, 0.16; P = .007), its relationship with chronic bronchitis did not reach statistical significance (P = .07). Seventy-three percent of subjects with COPD with luminal plugging at baseline had it 5 years later. CONCLUSIONS In subjects with COPD, CT-identified luminal plugging is associated with airflow obstruction, worse health-related quality of life, and emphysema phenotype. This imaging feature may supplement the current clinical assessment of chronic mucus hypersecretion in COPD.
Collapse
Affiliation(s)
- Yuka Okajima
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; Department of Radiology, St. Luke's International Hospital, Chuo-ku, Tokyo, Japan.
| | - Carolyn E Come
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Pietro Nardelli
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | | | - Andrew Yen
- Department of Radiology, University of California, San Diego, CA
| | - Hrudaya P Nath
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Nina Terry
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Scott A Grumley
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Asmaa Ahmed
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL
| | - Seth Kligerman
- Department of Radiology, University of California, San Diego, CA
| | - Kathleen Jacobs
- Department of Radiology, University of California, San Diego, CA
| | - David A Lynch
- Department of Radiology, National Jewish Health, Denver, CO
| | - Barry J Make
- Division of Pulmonary, Critical Care, and Sleep Medicine, National Jewish Health, Denver, CO
| | - Edwin K Silverman
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - George R Washko
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Raúl San José Estépar
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Alejandro A Diaz
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| |
Collapse
|
13
|
Svennberg E, Jacobs K, McVeigh E, Pretorius V, Birgersdotter-Green U. Computed Tomography-Guided Risk Assessment in Percutaneous Lead Extraction. JACC Clin Electrophysiol 2019; 5:1439-1446. [PMID: 31857044 DOI: 10.1016/j.jacep.2019.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The aim of this study was to assess if pre-procedural computed tomography (CT) could identify high-risk operative features and predict increased procedural complexity. BACKGROUND Unpredictable lead adhesions can make lead extraction complicated. Adhesions are known to affect leads with longer indwelling time but can unpredictably affect newer leads. METHODS Consecutive patients who had CTs performed ≤90 days before their planned lead extraction (LE) were included. CTs were reviewed blinded to outcome according to a preset checklist. The outcome was a combined endpoint of procedural complexity and major complications. RESULTS Between January 1, 2015 and July 1, 2018, 143 patients underwent CT and LE. Median age was 68 years (interquartile range [IQR]: 54.4 to 76.5), and 35% were female. Median age of extracted leads was 111 months, and 126 (43%) were >10 years. CT detected lead perforation ≥5 mm (n = 13), <5 mm (n = 55), severe lead adhesions (n = 65), leads touching vessel wall >1 cm (n = 102), lead fracture (n = 8), and severe ipsilateral venous stenosis/occlusion (n = 36). The procedure was complex in 63 cases. There were 2 deaths, and 6 major complications. Patients with severe lead adhesions had more complex procedures (n = 36 vs 29; p = 0.04), whereas none of the other findings on CT were significantly associated with worse outcome. In patients with leads that had an indwelling time <10 years (n = 72), severe lead adhesions on CT was associated with worse outcome in multivariable analysis (odds ratio: 6.4; 95% confidence interval: 1.4 to 30.2; p = 0.02). CONCLUSIONS Pre-procedural CT can be used to locate severe lead adhesions in patients planned for lead extraction. In patients with indwelling leads <10 years, pre-procedural CT aids in identifying patients prone to complex extractions.
Collapse
Affiliation(s)
- Emma Svennberg
- Department of Clinical Sciences, Division of Cardiovascular Medicine, Danderyd Hospital, Karolinska Institutet Stockholm, Sweden.
| | - Kathleen Jacobs
- Department of Radiology, University of California San Diego, San Diego, California
| | - Elliot McVeigh
- Department of Radiology, University of California San Diego, San Diego, California; Department of Bioengineering, University of California San Diego, La Jolla, California; Division of Cardiology, Department of Medicine, University of California San Diego, La Jolla, California
| | - Victor Pretorius
- Division of Cardiothoracic Surgery, University of California San Diego, La Jolla, California
| | - Ulrika Birgersdotter-Green
- Division of Cardiology, Department of Medicine, University of California San Diego, La Jolla, California
| |
Collapse
|
14
|
Kligerman S, Horowitz M, Jacobs K, Weihe E. Imaging of Cardiac Support Devices. Radiol Clin North Am 2019; 58:151-165. [PMID: 31731898 DOI: 10.1016/j.rcl.2019.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Patients hospitalized in the intensive care unit (ICU) often have multiple support lines and devices that need routine imaging evaluation by radiologists. In patients with cardiogenic shock or depressed cardiac function, mechanical circulation support devices are used in combination with medical therapies to improve patient outcomes and sometimes can stabilize patients for surgical intervention. This article discusses some of the more commonly encountered mechanical circulation devices seen in ICU patients, including intra-aortic balloon pumps, Impella devices, extracorporeal membrane oxygenation cannulas, and ventricular assist devices. Normal appearance and commonly encountered device-related complications that can be diagnosed on imaging are reviewed.
Collapse
Affiliation(s)
- Seth Kligerman
- Cardiothoracic Radiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
| | - Michael Horowitz
- Cardiothoracic Radiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Kathleen Jacobs
- Cardiothoracic Radiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Elizabeth Weihe
- Cardiothoracic Radiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| |
Collapse
|
15
|
Lowe KE, Regan EA, Anzueto A, Austin E, Austin JHM, Beaty TH, Benos PV, Benway CJ, Bhatt SP, Bleecker ER, Bodduluri S, Bon J, Boriek AM, Boueiz ARE, Bowler RP, Budoff M, Casaburi R, Castaldi PJ, Charbonnier JP, Cho MH, Comellas A, Conrad D, Costa Davis C, Criner GJ, Curran-Everett D, Curtis JL, DeMeo DL, Diaz AA, Dransfield MT, Dy JG, Fawzy A, Fleming M, Flenaugh EL, Foreman MG, Fortis S, Gebrekristos H, Grant S, Grenier PA, Gu T, Gupta A, Han MK, Hanania NA, Hansel NN, Hayden LP, Hersh CP, Hobbs BD, Hoffman EA, Hogg JC, Hokanson JE, Hoth KF, Hsiao A, Humphries S, Jacobs K, Jacobson FL, Kazerooni EA, Kim V, Kim WJ, Kinney GL, Koegler H, Lutz SM, Lynch DA, MacIntye Jr. NR, Make BJ, Marchetti N, Martinez FJ, Maselli DJ, Mathews AM, McCormack MC, McDonald MLN, McEvoy CE, Moll M, Molye SS, Murray S, Nath H, Newell Jr. JD, Occhipinti M, Paoletti M, Parekh T, Pistolesi M, Pratte KA, Putcha N, Ragland M, Reinhardt JM, Rennard SI, Rosiello RA, Ross JC, Rossiter HB, Ruczinski I, San Jose Estepar R, Sciurba FC, Sieren JC, Singh H, Soler X, Steiner RM, Strand MJ, Stringer WW, Tal-Singer R, Thomashow B, Vegas Sánchez-Ferrero G, Walsh JW, Wan ES, Washko GR, Michael Wells J, Wendt CH, Westney G, Wilson A, Wise RA, Yen A, Young K, Yun J, Silverman EK, Crapo JD. COPDGene ® 2019: Redefining the Diagnosis of Chronic Obstructive Pulmonary Disease. Chronic Obstr Pulm Dis 2019; 6:384-399. [PMID: 31710793 PMCID: PMC7020846 DOI: 10.15326/jcopdf.6.5.2019.0149] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/11/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) remains a major cause of morbidity and mortality. Present-day diagnostic criteria are largely based solely on spirometric criteria. Accumulating evidence has identified a substantial number of individuals without spirometric evidence of COPD who suffer from respiratory symptoms and/or increased morbidity and mortality. There is a clear need for an expanded definition of COPD that is linked to physiologic, structural (computed tomography [CT]) and clinical evidence of disease. Using data from the COPD Genetic Epidemiology study (COPDGene®), we hypothesized that an integrated approach that includes environmental exposure, clinical symptoms, chest CT imaging and spirometry better defines disease and captures the likelihood of progression of respiratory obstruction and mortality. METHODS Four key disease characteristics - environmental exposure (cigarette smoking), clinical symptoms (dyspnea and/or chronic bronchitis), chest CT imaging abnormalities (emphysema, gas trapping and/or airway wall thickening), and abnormal spirometry - were evaluated in a group of 8784 current and former smokers who were participants in COPDGene® Phase 1. Using these 4 disease characteristics, 8 categories of participants were identified and evaluated for odds of spirometric disease progression (FEV1 > 350 ml loss over 5 years), and the hazard ratio for all-cause mortality was examined. RESULTS Using smokers without symptoms, CT imaging abnormalities or airflow obstruction as the reference population, individuals were classified as Possible COPD, Probable COPD and Definite COPD. Current Global initiative for obstructive Lung Disease (GOLD) criteria would diagnose 4062 (46%) of the 8784 study participants with COPD. The proposed COPDGene® 2019 diagnostic criteria would add an additional 3144 participants. Under the new criteria, 82% of the 8784 study participants would be diagnosed with Possible, Probable or Definite COPD. These COPD groups showed increased risk of disease progression and mortality. Mortality increased in patients as the number of their COPD characteristics increased, with a maximum hazard ratio for all cause-mortality of 5.18 (95% confidence interval [CI]: 4.15-6.48) in those with all 4 disease characteristics. CONCLUSIONS A substantial portion of smokers with respiratory symptoms and imaging abnormalities do not manifest spirometric obstruction as defined by population normals. These individuals are at significant risk of death and spirometric disease progression. We propose to redefine the diagnosis of COPD through an integrated approach using environmental exposure, clinical symptoms, CT imaging and spirometric criteria. These expanded criteria offer the potential to stimulate both current and future interventions that could slow or halt disease progression in patients before disability or irreversible lung structural changes develop.
Collapse
Affiliation(s)
- Katherine E. Lowe
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve School of Medicine, Cleveland, Ohio
| | | | | | | | | | | | | | | | | | | | | | - Jessica Bon
- University of Pittsburgh, Pittsburgh, Pennsylvania
- VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
| | | | | | | | - Matthew Budoff
- Los Angeles Biomedical Research Institute at Harbor- University of California Los Angeles Medical Center, Torrance
| | - Richard Casaburi
- Los Angeles Biomedical Research Institute at Harbor- University of California Los Angeles Medical Center, Torrance
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Margaret Fleming
- Novartis Institute for Biomedical Research, Cambridge, Massachusetts
| | | | | | | | | | - Sarah Grant
- Novartis Institute for Biomedical Research, Cambridge, Massachusetts
| | | | - Tian Gu
- University of Michigan, Ann Arbor
| | - Abhya Gupta
- Boehringer Ingelheim, Biberach an der Riss, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Victor Kim
- Temple University, Philadelphia, Pennsylvania
| | - Woo Jin Kim
- Kangwon National University, Chuncheon, Korea
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Matthew Moll
- Brigham and Women's Hospital, Boston, Massachusetts
| | | | | | | | | | | | | | | | | | | | | | | | | | - Stephen I. Rennard
- AstraZeneca, Cambridge, United Kingdom
- University of Nebraska Medical Center, Omaha
| | | | | | - Harry B. Rossiter
- Los Angeles Biomedical Research Institute at Harbor- University of California Los Angeles Medical Center, Torrance
- University of Leeds, Leeds, United Kingdom
| | | | | | | | | | | | - Xavier Soler
- University of California at San Diego
- GlaxoSmithKline, Research Triangle Park, North Carolina
| | | | | | - William W. Stringer
- Los Angeles Biomedical Research Institute at Harbor- University of California Los Angeles Medical Center, Torrance
| | | | | | | | | | - Emily S. Wan
- Brigham and Women's Hospital, Boston, Massachusetts
- VA Boston Healthcare System, Jamaica Plain, Massachusetts
| | | | | | | | | | | | | | | | - Kendra Young
- University of Colorado Anschutz Medical Campus, Aurora
| | - Jeong Yun
- Brigham and Women's Hospital, Boston, Massachusetts
| | | | | |
Collapse
|
16
|
Nicolaou MA, Jacobs K, Bhana S, Naidu K, Nicolaou V. A retrospective study correlating sonographic features of thyroid nodules with fine-needle aspiration cytology in a South African setting. SA J Radiol 2019; 23:1749. [PMID: 31754540 PMCID: PMC6837782 DOI: 10.4102/sajr.v23i1.1749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 05/05/2019] [Indexed: 11/06/2022] Open
Abstract
Background Thyroid nodules are prevalent worldwide. Detection rates are increasing because of the use of ultrasonography. Ultrasound has become the first-choice imaging modality in evaluating nodules. The decision to perform an US-guided fine-needle aspiration (FNA) is based on a nodule’s sonographic features. Thus, it is essential to accurately risk stratify thyroid nodules so that they are appropriately referred for FNA. Objectives The aim of this study was to correlate the ultrasound imaging features of thyroid nodules with FNA cytology and surgical histopathology results, and to risk stratify patients using the American Thyroid Association (ATA) classification for each imaging characteristic with the likelihood of the nodule being malignant. Method Retrospective analysis of a thyroid ultrasound database at Chris Hani Baragwanath Academic Hospital, over the period 2015–2017. Frequencies and percentages were used to summarise the data. Univariate logistic regression analyses were used to assess the accuracy of sonographic features in predicting the histologically determined diagnosis for thyroid tumours. Results A total of 113 nodules underwent FNA, of which 104 were diagnostic. The best three ultrasound features that pose a higher risk for malignancy are absent halo, presence of microcalcifications and hypoechoic appearance. No single nodule feature is an absolute indicator for malignancy. There is a high agreement between ATA classification and cytopathology or histology when nodule features are grouped into clusters. Agreement between the ATA classification and cytopathology/histology was 86.7% with a kappa of 0.714. The agreement between the cytopathology FNA results and lobectomy histopathology was 98.8% with a kappa of 0.973. Conclusion This study contributes to the paucity of data available for sub-Saharan Africa and provides reassurance that our results are consistent with international studies. The study confirms that the usage of a thyroid nodule classification system improves characterisation and increases accuracy in detecting thyroid malignancies, thus sparing many patients the morbidity of unnecessary thyroid surgery.
Collapse
Affiliation(s)
- Mark A Nicolaou
- Department of Diagnostic Radiology, University of the Witwatersrand, Johannesburg, South Africa
| | - Kathleen Jacobs
- Department of Diagnostic Radiology, Chris Hani Baragwanath Hospital, Johannesburg, South Africa
| | - Sindeep Bhana
- Department of Endocrinology, Chris Hani Baragwanath Hospital, Johannesburg, South Africa
| | - Kershlin Naidu
- Endocrinologist, Netcare Waterfall City Hospital, Johannesburg, South Africa
| | - Veronique Nicolaou
- Department of Endocrinology, Chris Hani Baragwanath Hospital, Johannesburg, South Africa
| |
Collapse
|
17
|
Affiliation(s)
- K. Jacobs
- Tree Pathology Co-operative Programme, Forestry and Agricultural Biotechnology Institute (FABI), Department of Microbiology and Plant Pathology, University of Pretoria, Pretoria, 0002, Republic of South Africa
| | - M. J. Wingfield
- Tree Pathology Co-operative Programme, Forestry and Agricultural Biotechnology Institute (FABI), Department of Microbiology and Plant Pathology, University of Pretoria, Pretoria, 0002, Republic of South Africa
| | - C. Coetsee
- Department of Microbiology and Biochemistry, University of the Orange Free State, PO Box 339, Bloemfontein, 9300, South Africa
| | - T. Kirisits
- Institute of Forest Entomology, Forest Pathology and Forest Protection, Universität für Bodenkultur, Hasenauerstrasse 38, A-1190 Vienna, Austria
| | - B. D. Wingfield
- Department of Genetics, University of Pretoria, Pretoria, 0002, Republic of South Africa
| |
Collapse
|
18
|
|
19
|
Degryse S, de Bock CE, Demeyer S, Govaerts I, Bornschein S, Verbeke D, Jacobs K, Binos S, Skerrett-Byrne DA, Murray HC, Verrills NM, Van Vlierberghe P, Cools J, Dun MD. Correction: Mutant JAK3 phosphoproteomic profiling predicts synergism between JAK3 inhibitors and MEK/BCL2 inhibitors for the treatment of T-cell acute lymphoblastic leukemia. Leukemia 2018; 32:2731. [PMID: 30232463 PMCID: PMC7609275 DOI: 10.1038/s41375-018-0241-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S Degryse
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - C E de Bock
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - S Demeyer
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - I Govaerts
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - S Bornschein
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - D Verbeke
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - K Jacobs
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - S Binos
- Thermo Fisher Scientific, Scoresby, VIC, Australia
| | - D A Skerrett-Byrne
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - H C Murray
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - N M Verrills
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - P Van Vlierberghe
- Department of Pediatrics and Genetics, Center for Medical Genetics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - J Cools
- VIB Center for Cancer Biology, Leuven, Belgium. .,KU Leuven Center for Human Genetics, Leuven, Belgium.
| | - M D Dun
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia. .,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia.
| |
Collapse
|
20
|
Affiliation(s)
- K. Jacobs
- Department of Microbiology and Biochemistry, University of the Orange Free State, Bloemfontein, 9301, Republic of South Africa
| | - M. J. Wingfield
- Department of Microbiology and Biochemistry, University of the Orange Free State, Bloemfontein, 9301, Republic of South Africa
| | - D. R. Bergdahl
- Department of Forestry, School of Natural Resources, University of Vermont, Burlington, Vermont, 05405
| |
Collapse
|
21
|
Vasile M, Jacobs K, Bruggeman M, Van Hoecke K, Dobney A, Verrezen F. On the sequential separation and quantification of 237 Np, 241 Am, thorium, plutonium, and uranium isotopes in environmental and urine samples. Appl Radiat Isot 2018; 134:455-460. [DOI: 10.1016/j.apradiso.2017.07.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/11/2017] [Accepted: 07/11/2017] [Indexed: 10/19/2022]
|
22
|
Harraghy N, Seiler S, Jacobs K, Hannig M, Menger MD, Herrmann M. Advances in in Vitro and in Vivo Models for Studying the Staphylococcal Factors Involved in Implant Infections. Int J Artif Organs 2018; 29:368-78. [PMID: 16705605 DOI: 10.1177/039139880602900406] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Implant infections due to staphylococci are one of the greatest threats facing patients receiving implant devices. For many years researchers have sought to understand the mechanisms involved in the adherence of the bacterium to the implanted device and the formation of the unique structure, the biofilm, which protects the indwelling bacteria from the host defence and renders them resistant to antibiotic treatment. A major goal has been to develop in vitro and in vivo models that adequately reflect the real-life situation. From the simple microtiter plate assay and scanning electron microscopy, tools for studying adherence and biofilm formation have since evolved to include specialised equipment for studying adherence, flow cell systems, real-time analysis of biofilm formation using reporter gene assays both in vitro and in vivo, and a wide variety of animal models. In this article, we discuss advances in the last few years in selected in vitro and in vivo models as well as future developments in the study of adherence and biofilm formation by the staphylococci.
Collapse
Affiliation(s)
- N Harraghy
- Institute of Medical Microbiology and Hygiene, University of Saarland, Homburg/Saar, Germany.
| | | | | | | | | | | |
Collapse
|
23
|
Jacobs K, Leopold A, Hendricks DJ, Sampson E, Nardone A, Lopez KB, Rumrill P, Stauffer C, Elias E, Scherer M, Dembe J. Project Career: Perceived benefits of iPad apps among college students with Traumatic Brain Injury (TBI). Work 2017; 58:45-50. [PMID: 28922175 DOI: 10.3233/wor-172596] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Project Career is an interprofessional five-year development project designed to improve academic and employment success of undergraduate students with a traumatic brain injury (TBI) at two- and four-year colleges and universities. Students receive technology in the form of iPad applications ("apps") to support them in and out of the classroom. OBJECTIVE To assess participants' perspectives on technology at baseline and perceived benefit of apps after 6 and 12 months of use. METHODS This article address a component of a larger study. Participants included 50 college-aged students with traumatic brain injuries. Statistical analysis included data from two Matching Person and Technology (MPT) assessment forms, including the Survey of Technology Use at baseline and the Assistive Technology Use Follow-Up Survey: Apps Currently Using, administered at 6- and 12-months re-evaluation. Analyses included frequencies and descriptives. RESULTS Average scores at baseline indicated positive perspectives on technology. At 6 months, quality of life (67%) and academics (76%) improved moderately or more from the use of iPad apps. At 12 months, quality of life (65%) and academics (82%) improved moderately or more from the use of iPad apps. CONCLUSION Students with a TBI have positive perspectives on technology use. The results on perceived benefit of apps indicated that students with a TBI (including civilians and veterans) report that the apps help them perform in daily life and academic settings.
Collapse
Affiliation(s)
- K Jacobs
- Boston University, Boston, MA, USA
| | - A Leopold
- JBS International, Inc., Bethesda, MD, USA
| | | | - E Sampson
- West Virginia University, Morgantown, WV, USA
| | | | - K B Lopez
- Kent State University, Kent, OH, USA
| | - P Rumrill
- Kent State University, Kent, OH, USA
| | | | - E Elias
- JBS International, Inc., Bethesda, MD, USA
| | - M Scherer
- University of Rochester, Rochester, NY, USA
| | - J Dembe
- Kent State University, Kent, OH, USA
| |
Collapse
|
24
|
Navarrete Santos A, Jacobs K, Simm A, Glaubitz N, Horstkorte R, Hofmann B. Dicarbonyls induce senescence of human vascular endothelial cells. Mech Ageing Dev 2017; 166:24-32. [DOI: 10.1016/j.mad.2017.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 07/17/2017] [Accepted: 07/24/2017] [Indexed: 01/01/2023]
|
25
|
Degryse S, de Bock CE, Demeyer S, Govaerts I, Bornschein S, Verbeke D, Jacobs K, Binos S, Skerrett-Byrne DA, Murray HC, Verrills NM, Van Vlierberghe P, Cools J, Dun MD. Mutant JAK3 phosphoproteomic profiling predicts synergism between JAK3 inhibitors and MEK/BCL2 inhibitors for the treatment of T-cell acute lymphoblastic leukemia. Leukemia 2017; 32:788-800. [PMID: 28852199 PMCID: PMC5843905 DOI: 10.1038/leu.2017.276] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 07/17/2017] [Accepted: 08/15/2017] [Indexed: 02/06/2023]
Abstract
Mutations in the interleukin-7 receptor (IL7R) or the Janus kinase 3 (JAK3) kinase occur frequently in T-cell acute lymphoblastic leukemia (T-ALL) and both are able to drive cellular transformation and the development of T-ALL in mouse models. However, the signal transduction pathways downstream of JAK3 mutations remain poorly characterized. Here we describe the phosphoproteome downstream of the JAK3(L857Q)/(M511I) activating mutations in transformed Ba/F3 lymphocyte cells. Signaling pathways regulated by JAK3 mutants were assessed following acute inhibition of JAK1/JAK3 using the JAK kinase inhibitors ruxolitinib or tofacitinib. Comprehensive network interrogation using the phosphoproteomic signatures identified significant changes in pathways regulating cell cycle, translation initiation, mitogen-activated protein kinase and phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/AKT signaling, RNA metabolism, as well as epigenetic and apoptotic processes. Key regulatory proteins within pathways that showed altered phosphorylation following JAK inhibition were targeted using selumetinib and trametinib (MEK), buparlisib (PI3K) and ABT-199 (BCL2), and found to be synergistic in combination with JAK kinase inhibitors in primary T-ALL samples harboring JAK3 mutations. These data provide the first detailed molecular characterization of the downstream signaling pathways regulated by JAK3 mutations and provide further understanding into the oncogenic processes regulated by constitutive kinase activation aiding in the development of improved combinatorial treatment regimens.
Collapse
Affiliation(s)
- S Degryse
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - C E de Bock
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - S Demeyer
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - I Govaerts
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - S Bornschein
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - D Verbeke
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - K Jacobs
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - S Binos
- Thermo Fisher Scientific, Scoresby, Victoria, Australia
| | - D A Skerrett-Byrne
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - H C Murray
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - N M Verrills
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - P Van Vlierberghe
- Department of Pediatrics and Genetics, Center for Medical Genetics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - J Cools
- VIB Center for Cancer Biology, Leuven, Belgium.,KU Leuven Center for Human Genetics, Leuven, Belgium
| | - M D Dun
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Cancer Research Program, School of Biomedical Sciences and Pharmacy, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| |
Collapse
|
26
|
Simm A, Jacobs K, Navarrete Santos A, Wienke A, Treede H, Hofmann B. CARDIAC TISSUE GLYCATION AND SKIN AUTOFLUORESCENCE IN CORONARY ARTERY DISEASE PATIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A. Simm
- Clinic for Heart Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - K. Jacobs
- Clinic for Heart Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - A. Navarrete Santos
- Clinic for Heart Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - A. Wienke
- Clinic for Heart Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - H. Treede
- Clinic for Heart Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - B. Hofmann
- Clinic for Heart Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| |
Collapse
|
27
|
Abstract
Within this special issue, different aspects of the environment are studied: aspects that are distant from the human body, close to the body and touching the human body. Consequently, different human senses are involved in these studies as well as the different consequences and effects on the brain and human behaviour. This special issue also highlights many remaining questions about the effects and relationships between environments and human beings and the need for more studies and research. In particular, future studies are needed that address long-term effects and the effects of the combinations of elements which provide comfort or discomfort.
Collapse
Affiliation(s)
- P Vink
- Faculty of Industrial Design Engineering, Delft University of Technology, Delft, The Netherlands
| | - C Bazley
- JimConna Inc., Carbondale, CO, USA
| | - K Jacobs
- Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, MA, USA
| |
Collapse
|
28
|
Jacobs K, Van de Velde H, De Paepe C, Sermon K, Spits C. Mitotic spindle disruption in human preimplantation embryos activates the spindle assembly checkpoint but not apoptosis until Day 5 of development. Mol Hum Reprod 2017; 23:321-329. [DOI: 10.1093/molehr/gax007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/31/2017] [Indexed: 12/22/2022] Open
|
29
|
Affiliation(s)
| | | | - Keith A. Seifert
- Biodiversity Theme (Mycology & Botany), Agriculture and Agri-Food Canada, 960 Carling Ave., Ottawa, Ontario, Canada, K1A 0C6
| |
Collapse
|
30
|
Jacobs K, Brouha S, Bettencourt R, Barrett-Connor E, Sirlin C, Loomba R. Association of Nonalcoholic Fatty Liver Disease With Visceral Adiposity but Not Coronary Artery Calcification in the Elderly. Clin Gastroenterol Hepatol 2016; 14:1337-1344.e3. [PMID: 26820400 DOI: 10.1016/j.cgh.2016.01.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 12/13/2015] [Accepted: 01/14/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Nonalcoholic fatty liver disease (NAFLD) is related closely to risk factors for coronary artery disease, but it is unclear whether NAFLD independently contributes to atherosclerosis. We investigated the association between NAFLD and coronary artery calcium (CAC) scores, determined based on noncontrast cardiac computed tomography data, in an elderly cohort. METHODS We conducted a longitudinal, cross-sectional study of data from 250 participants (mean age, 67.6 ± 7.0 y; 43.2% men) in the Rancho Bernardo Study-a prospective population-based study of mostly white adults in suburban Southern California. We compared CAC scores, liver-to-spleen attenuation ratio, and volumes of visceral adipose tissue (VAT) at baseline and after a 5-year follow-up period. RESULTS We assigned participants to groups based on CAC scores (0, 0-10, 11-100, 101-400, and >400). Among groups, the liver-to-spleen attenuation ratio did not vary significantly, but VAT increased with CAC score (median and interquartile range values were as follows: 50.0 [33.3-77.4] cm(3), 63.0 [33.9-93.1] cm(3), 66.1 [48.2-80.2] cm(3), 69.1 [48.1-85.0] cm(3), 76.1 [53.1-108.5] cm(3) for CAC groups; P = .0054). In multivariable regression analysis, NAFLD at baseline was not associated with an increased risk of a CAC score greater than 0. Longitudinal analysis showed that visceral fat, but not hepatic steatosis, increased in participants with increasing CAC scores (interquartile range 57.1-92.4) vs 55.2 cm(3) in patients without (interquartile range 36.5-81.1, P = .0401). The proportion of patients with NAFLD decreased after the 5-year follow-up period (from 29.3% before to 14.1% afterward; P = .0081), despite increased mean CAC scores and VAT volume in patients. CONCLUSIONS In adults age 67.6 ± 7.0 years, the proportion with NAFLD decreased despite increasing CAC score and VAT with age. There was no clear association between NAFLD and CAC score. However, VAT was associated with baseline and increasing CAC scores. Visceral adiposity therefore might be a risk factor for coronary artery disease.
Collapse
Affiliation(s)
- Kathleen Jacobs
- Department of Radiology, University of California San Diego, La Jolla, California
| | - Sharon Brouha
- Department of Radiology, University of California San Diego, La Jolla, California
| | - Ricki Bettencourt
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, California; Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California
| | - Elizabeth Barrett-Connor
- Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California
| | - Claude Sirlin
- Department of Radiology, University of California San Diego, La Jolla, California
| | - Rohit Loomba
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, California; Division of Epidemiology, Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California; NAFLD Translational Research Unit, University of California San Diego, La Jolla, California.
| |
Collapse
|
31
|
Maes B, Bakkus M, Boeckx N, Boone E, Cauwelier B, Denys B, De Schouwer P, Devos T, El Housni H, Hillen F, Jacobs K, Lambert F, Louagie H, Maes MB, Meeus P, Moreau E, Nollet F, Peeters K, Saussoy P, Van Lint P, Vaerman JL, Vaeyens F, Vandepoele K, Vannuffel P, Ver Elst K, Vermeulen K, Bruyndonckx R. A novel approach forBCR-ABL1standardization to improve International Scale estimation. Int J Lab Hematol 2016; 38:674-684. [DOI: 10.1111/ijlh.12556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 06/13/2016] [Indexed: 01/06/2023]
Affiliation(s)
- B. Maes
- Laboratory for Molecular Diagnostics; Jessa Hospital; Hasselt Belgium
| | - M. Bakkus
- Laboratory of Haematology; University Hospital Brussels; Brussels Belgium
| | - N. Boeckx
- Department of Laboratory Medicine; University Hospitals Leuven; Leuven Belgium
| | - E. Boone
- Laboratory for Molecular Diagnostics; AZ Delta; Roeselare Belgium
| | - B. Cauwelier
- Department of Laboratory Medicine; AZ Sint-Jan Brugge-Oostende AV; Brugge Belgium
| | - B. Denys
- Laboratory for Molecular Diagnostics - Haematology; University Hospital Gent; Gent Belgium
| | | | - T. Devos
- Department of Haematology; University Hospitals; Leuven Belgium
| | | | - F. Hillen
- Laboratory for Molecular Diagnostics; Jessa Hospital; Hasselt Belgium
| | - K. Jacobs
- Clinical Laboratory; AZ Sint-Lucas; Gent Belgium
| | - F. Lambert
- Laboratory for Molecular Diagnostics; Haemato-Oncology Unit; University Hospital Liege; Liege Belgium
| | - H. Louagie
- Clinical Laboratory; AZ Sint-Lucas; Gent Belgium
| | - M.-B. Maes
- Laboratory of Haematology; University Hospital of Antwerp; Antwerp Belgium
| | - P. Meeus
- Laboratory for Molecular Diagnostics; OLV Ziekenhuis Aalst; Aalst Belgium
| | - E. Moreau
- Laboratory for Molecular Diagnostics; AZ Delta; Roeselare Belgium
| | - F. Nollet
- Department of Laboratory Medicine; AZ Sint-Jan Brugge-Oostende AV; Brugge Belgium
| | | | - P. Saussoy
- Laboratoire de biologie moléculaire; Cliniques Universitaires Saint-Luc; Bruxelles Belgium
| | - P. Van Lint
- Department of Molecular Diagnostics; GZA St-Augustinus; Wilrijk Belgium
| | - J.-L. Vaerman
- Laboratoire de biologie moléculaire; Cliniques Universitaires Saint-Luc; Bruxelles Belgium
| | - F. Vaeyens
- Laboratory for Molecular Diagnostics; OLV Ziekenhuis Aalst; Aalst Belgium
| | - K. Vandepoele
- Laboratory for Molecular Diagnostics - Haematology; University Hospital Gent; Gent Belgium
| | - P. Vannuffel
- Institut de Pathologie et de Génétique; Gosselies Belgium
| | - K. Ver Elst
- Department of Molecular Diagnostics; GZA St-Augustinus; Wilrijk Belgium
| | - K. Vermeulen
- Laboratory of Haematology; University Hospital of Antwerp; Antwerp Belgium
| | - R. Bruyndonckx
- Interuniversity Institute for Biostatistics and statistical Bioinformatics (I-BIOSTAT); University of Hasselt; Diepenbeek Belgium
| | | |
Collapse
|
32
|
Hussain M, Bork K, Gnanapragassam VS, Bennmann D, Jacobs K, Navarette-Santos A, Hofmann B, Simm A, Danker K, Horstkorte R. Novel insights in the dysfunction of human blood-brain barrier after glycation. Mech Ageing Dev 2016; 155:48-54. [DOI: 10.1016/j.mad.2016.03.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/08/2016] [Accepted: 03/09/2016] [Indexed: 11/15/2022]
|
33
|
Jacobs K, Hofmann B, Silber RE, Treede H, Simm A, Navarrete Santos A. Diabetes and Age-Related Reactive Dicarbonyls Cause Endothelial Cell Dysfunction. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571716] [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]
|
34
|
Hofmann B, Jacobs K, Navarrete Santos A, Wienke A, Silber RE, Treede H, Simm A. Biomarker Skin Autofluorescence Predicts the Outcome in Cardiac Surgery. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571648] [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]
|
35
|
Hofmann B, Jacobs K, Navarrete Santos A, Wienke A, Silber R, Simm A. Relationship between cardiac tissue glycation and skin autofluorescence in patients with coronary artery disease. Diabetes & Metabolism 2015; 41:410-5. [DOI: 10.1016/j.diabet.2014.12.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 11/27/2014] [Accepted: 12/02/2014] [Indexed: 12/22/2022]
|
36
|
Cartwright T, Fraser E, Edmunds S, Wilkinson N, Jacobs K. Journeys of adjustment: the experiences of adolescents living with juvenile idiopathic arthritis. Child Care Health Dev 2015; 41:734-43. [PMID: 25287720 DOI: 10.1111/cch.12206] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/08/2014] [Indexed: 01/30/2023]
Abstract
BACKGROUND Juvenile idiopathic arthritis (JIA) is one of the most common diseases of childhood causing pain, swelling of joints and reduced mobility. Previous research has focused on the challenges and psychosocial impact of JIA, but there has been limited attention given to how young people adjust and adapt to living with a long-term condition such as JIA. The aim of this qualitative study was therefore to explore adolescents' experiences of living with JIA, with particular focus on the process of adjustment. METHODS Ten adolescents (7 female, 3 male) aged 13-17 years with good treatment adherence were recruited from an adolescent arthritis clinic. In-depth interviews were conducted, and data were analysed by two researchers independently using interpretative phenomenological analysis. RESULTS These adolescents described the physical and psychosocial 'burden of living with JIA' and the challenges faced by an underlying preoccupation 'to be a normal teenager'. However, their accounts also revealed ways in which they regained agency and developed 'resilience through taking control' over their lives. This resilience helped the adolescents re-establish a sense of well-being through an ongoing process of 'acceptance and self-growth'. CONCLUSIONS Although much research has adopted a deficit model that focuses on adjustment problems, the current study highlights the resourcefulness of young people in managing the challenges of living with a long-term condition. These experiences of successful adjustment can be used as the basis of positive, strength-based intervention approaches for adolescents with arthritis to enhance resilience and well-being.
Collapse
Affiliation(s)
- T Cartwright
- Department of Psychology, University of Westminster, London, UK
| | - E Fraser
- Medical Paediatric Psychology Service, Crosshouse Hospital, Kilmarnock, Scotland
| | - S Edmunds
- Department of Psychology, University of Westminster, London, UK
| | - N Wilkinson
- Oxford Paediatric and Adolescent Rheumatology Centre (OxPARC), Nuffield Orthopaedic Centre, Oxford, UK
| | - K Jacobs
- Oxford Paediatric and Adolescent Rheumatology Centre (OxPARC), Nuffield Orthopaedic Centre, Oxford, UK.,Department of Paediatric Psychology, The Children's Hospital, Oxford, UK
| |
Collapse
|
37
|
Bennmann D, Kannicht C, Fisseau C, Jacobs K, Navarette-Santos A, Hofmann B, Horstkorte R. Glycation of the high affinity NGF-receptor and RAGE leads to reduced ligand affinity. Mech Ageing Dev 2015. [PMID: 26212415 DOI: 10.1016/j.mad.2015.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AGEs are posttranslational modifications generated by irreversible non-enzymatic crosslinking reactions between sugars and proteins - a reaction referred to as glycation. Glycation, a feature of ageing, can lead to non-degradable and less functional proteins and enzymes and can additionally induce inflammation and further pathophysiological processes such as neurodegeneration. In this study we investigated the influence of glycation on the high affinity NGF-receptor TrkA and the AGE-receptor RAGE. We quantified the binding affinity of the TrkA-receptor and RAGE to their ligands by surface plasmon resonance (SPR) and compared these to the binding affinity after glycation. At the same time, we established a glycation procedure using SPR. We found that glycation of TrkA reduced the affinity to NGF by a factor of three, which could be shown to lead to a reduction of NGF-dependent neurite outgrowth in PC12 cells. Glycation of RAGE reduced binding affinity of AGEs by 10-fold.
Collapse
Affiliation(s)
- Dorit Bennmann
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Hollystr. 1, D-06114 Halle (Saale), Germany
| | - Christoph Kannicht
- Octapharma Biopharmaceuticals GmbH, Molecular Biochemistry, Walther-Nernst-Str. 3, D-12489 Berlin, Germany
| | - Claudine Fisseau
- Octapharma Biopharmaceuticals GmbH, Molecular Biochemistry, Walther-Nernst-Str. 3, D-12489 Berlin, Germany
| | - Kathleen Jacobs
- Clinic and Policlinic for Cardiothoracic Surgery, University Hospital Halle, Ernst-Grube-Str. 40, D-06120 Halle (Saale), Germany
| | - Alexander Navarette-Santos
- Center for Medical Basic Research of the Martin-Luther University Halle-Wittenberg, Ernst-Grube-Str. 40, D-06120 Halle (Saale), Germany
| | - Britt Hofmann
- Clinic and Policlinic for Cardiothoracic Surgery, University Hospital Halle, Ernst-Grube-Str. 40, D-06120 Halle (Saale), Germany
| | - Rüdiger Horstkorte
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Hollystr. 1, D-06114 Halle (Saale), Germany.
| |
Collapse
|
38
|
Bennion N, Driewer J, Jacobs K, Poole M, McMahon R, Wilson K, Denniston K, Zhen W, Yager A, Enke C. SU-E-T-452: Identifying Inefficiencies in Radiation Oncology Workflow and Prioritizing Solutions for Process Improvement and Patient Safety. Med Phys 2015. [DOI: 10.1118/1.4924814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
39
|
Georgiev G, Jacobs K, Zuro D, Kim Y. SU-E-T-737: The Impact of the Size of Custom Lead Shields On the Dosimetry of Electron Beam Therapy. Med Phys 2015. [DOI: 10.1118/1.4925101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
40
|
Lessel M, Bäumchen O, Klos M, Hähl H, Fetzer R, Paulus M, Seemann R, Jacobs K. Self‐assembled silane monolayers: an efficient step‐by‐step recipe for high‐quality, low energy surfaces. SURF INTERFACE ANAL 2015. [DOI: 10.1002/sia.5729] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Lessel
- Saarland UniversityExperimental Physics Saarbrücken D‐66041 Germany
| | - O. Bäumchen
- Saarland UniversityExperimental Physics Saarbrücken D‐66041 Germany
| | - M. Klos
- Saarland UniversityExperimental Physics Saarbrücken D‐66041 Germany
| | - H. Hähl
- Saarland UniversityExperimental Physics Saarbrücken D‐66041 Germany
| | - R. Fetzer
- Saarland UniversityExperimental Physics Saarbrücken D‐66041 Germany
| | - M. Paulus
- TU DortmundFakultät Physik / DELTA Dortmund D‐44221 Germany
| | - R. Seemann
- Saarland UniversityExperimental Physics Saarbrücken D‐66041 Germany
| | - K. Jacobs
- Saarland UniversityExperimental Physics Saarbrücken D‐66041 Germany
| |
Collapse
|
41
|
De Munck N, Petrussa L, Verheyen G, Staessen C, Vandeskelde Y, Sterckx J, Bocken G, Jacobs K, Stoop D, De Rycke M, Van de Velde H. Chromosomal meiotic segregation, embryonic developmental kinetics and DNA (hydroxy)methylation analysis consolidate the safety of human oocyte vitrification. ACTA ACUST UNITED AC 2015; 21:535-44. [DOI: 10.1093/molehr/gav013] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 03/26/2015] [Indexed: 01/11/2023]
|
42
|
Houbraken J, Visagie CM, Meijer M, Frisvad JC, Busby PE, Pitt JI, Seifert KA, Louis-Seize G, Demirel R, Yilmaz N, Jacobs K, Christensen M, Samson RA. A taxonomic and phylogenetic revision of Penicillium section Aspergilloides. Stud Mycol 2014; 78:373-451. [PMID: 25492984 PMCID: PMC4255628 DOI: 10.1016/j.simyco.2014.09.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [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: 10/31/2022] Open
Abstract
Species belonging to Penicillium section Aspergilloides have a world-wide distribution with P. glabrum, P. spinulosum and P. thomii the most well-known species of this section. These species occur commonly and can be isolated from many substrates including soil, food, bark and indoor environments. The taxonomy of these species has been investigated several times using various techniques, but species delimitation remains difficult. In the present study, 349 strains belonging to section Aspergilloides were subjected to multilocus molecular phylogenetic analyses using partial β-tubulin (BenA), calmodulin (CaM) and RNA polymerase II second largest subunit (RPB2) sequences. Section Aspergilloides is subdivided into 12 clades and 51 species. Twenty-five species are described here as new and P. yezoense, a species originally described without a Latin diagnosis, is validated. Species belonging to section Aspergilloides are phenotypically similar and most have monoverticillate conidiophores and grow moderately or quickly on agar media. The most important characters to distinguish these species were colony sizes on agar media, growth at 30 °C, ornamentation and shape of conidia, sclerotium production and stipe roughness.
Collapse
Affiliation(s)
- J Houbraken
- CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, NL-3584 CT Utrecht, The Netherlands
| | - C M Visagie
- CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, NL-3584 CT Utrecht, The Netherlands
| | - M Meijer
- CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, NL-3584 CT Utrecht, The Netherlands
| | - J C Frisvad
- Department of Systems Biology, Building 221, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - P E Busby
- Department of Biology, Stanford University, 371 Serra Mall, Stanford, CA 94305, USA
| | - J I Pitt
- CSIRO Animal, Food and Health Sciences, North Ryde, NSW 2113, Australia
| | - K A Seifert
- Biodiversity (Mycology), Agriculture & Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - G Louis-Seize
- Biodiversity (Mycology), Agriculture & Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - R Demirel
- Department of Biology, Faculty of Science, Anadolu University, Turkey
| | - N Yilmaz
- CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, NL-3584 CT Utrecht, The Netherlands
| | - K Jacobs
- Department of Microbiology, University of Stellenbosch, Private Bag X1, Stellenbosch 7600, South Africa
| | - M Christensen
- Botany Department, University of Wisconsin-Madison, 430 Lincoln Drive, Madison, WI 53706, USA
| | - R A Samson
- CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, NL-3584 CT Utrecht, The Netherlands
| |
Collapse
|
43
|
Kressler J, Jacobs K, Burns P, Betancourt L, Nash MS. Effects of circuit resistance training and timely protein supplementation on exercise-induced fat oxidation in tetraplegic adults. Top Spinal Cord Inj Rehabil 2014; 20:113-22. [PMID: 25477733 DOI: 10.1310/sci2002-113] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Substrate utilization during exercise in persons with spinal cord injury (SCI) remains poorly defined. PURPOSE To investigate effects of circuit resistance training (CRT) and timing of protein supplementation (PS) on fuel utilization in persons with tetraplegia. METHODS Eleven individuals with chronic tetraplegia underwent 6 months of CRT 3 times weekly. Five randomly assigned participants received immediate PS (iPS) administered in split doses prior to and following all exercise sessions. Other participants consumed a matched dose of PS that was delayed until 24 hours post-exercise (dPS). Participants underwent a maximal graded exercise test (GXT) to volitional exhaustion at 4 conditioning time points: 3 months before (-3mo), at the beginning of (0mo), 3 months into (3mo), and 6 months following (6mo) the CRT conditioning program. Respiratory measures were continuously obtained throughout the GXT via open-circuit spirometry. Fuel utilization and energy expenditure were computed from the respiratory data. RESULTS The differences in changes in substrate utilization between the PS groups were not significant as determined by the interaction of PS group and conditioning time point, F (3, 27) = 2.32, P = .098, η(2) P = .205. Maximal absolute fat oxidation did not change significantly from 0 to 6mo (mean difference, 0.014 ± 0.031 g/min; P = .170), and fat oxidation remained low never exceeding an average of 0.10 ± 0.09 g/min for any given exercise intensity. CONCLUSION Maximum fat utilization during exercise and fat utilization at matched exercise intensities were not increased in persons with tetraplegia, independent of PS, and levels of fat oxidation remained low after training.
Collapse
Affiliation(s)
- J Kressler
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami , Miami, Florida
| | - K Jacobs
- Department of Kinesiology and Sports Sciences, Miller School of Medicine, University of Miami , Miami, Florida
| | - P Burns
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami , Miami, Florida
| | - L Betancourt
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami , Miami, Florida
| | - M S Nash
- The Miami Project to Cure Paralysis, Miller School of Medicine, University of Miami , Miami, Florida ; Department of Kinesiology and Sports Sciences, Miller School of Medicine, University of Miami , Miami, Florida ; Department of Neurological Surgery, Miller School of Medicine, University of Miami , Miami, Florida ; Department of Rehabilitation Medicine, Miller School of Medicine, University of Miami , Miami, Florida
| |
Collapse
|
44
|
Spits C, Guzman L, Mertzanidou A, Jacobs K, Ortega-Hrepich C, Gilchrist RB, Thompson JG, De Vos M, Smitz J, Sermon K. Chromosome constitution of human embryos generated after in vitro maturation including 3-isobutyl-1-methylxanthine in the oocyte collection medium. Hum Reprod 2014; 30:653-63. [PMID: 25475586 DOI: 10.1093/humrep/deu329] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
STUDY QUESTION Do cleavage-stage embryos obtained from oocytes matured in vitro after pre-incubation with a phosphodiesterase inhibitor (IBMX) carry more chromosomal abnormalities than those generated from oocytes matured in vivo? SUMMARY ANSWER The rate and type of chromosomal abnormalities in normally developing cleavage-stage embryos generated with an in vitro maturation (IVM) system including pre-incubation with IBMX are not different from those observed in supernumerary embryos obtained from oocytes matured in vivo. WHAT IS KNOWN ALREADY Very limited information is available about the chromosomal constitution of IVM embryos. Previous studies were carried out using FISH on single biopsied blastomeres or arrested whole embryos and only provided fragmentary information on chromosomal abnormalities in IVM embryos. There is no systematic study of chromosomal abnormalities in all blastomeres of human Day 3 embryos with good morphology. STUDY DESIGN, SIZE, DURATION Between July 2012 and December 2012, 16 young (age <35 years old) egg donors underwent 18 IVM cycles for the generation of research embryos. Eighteen embryos developed to Day 3 and were analysed using array comparative genomic hybridization (aCGH). PARTICIPANTS/MATERIALS, SETTING, METHODS Immature oocytes were retrieved from 2 to 10 mm follicles after mild ovarian stimulation with gonadotrophins but without hCG ovulation trigger. At collection, oocytes were pre-incubated with 3-isobutyl-1-methylxanthine (IBMX), a phosphodiesterase inhibitor and matured in vitro. After IVM culture, mature oocytes were microinjected with sperm from a single donor. Embryos were cultured to Day 3 after ICSI and all blastomeres of 18 good-morphology embryos were collected individually for aCGH. MAIN RESULTS AND THE ROLE OF CHANCE Oocyte maturation rate in vitro was 50.2% (120/239). The mean fertilization rate was 68.3% (82/120) and 30.5% (25/82) of fertilized oocytes developed into a morphologically good quality embryo on Day 3 after ICSI. Of these, 18 embryos that developed well up to Day 3 were analysed using aCGH. Eighty of the 123 blastomeres analysed showed at least one chromosomal abnormality. Three out of eighteen embryos had completely normal cells. A single embryo carried a meiotic abnormality, 11 embryos were mosaic and three were chaotic. Although the aneuploidy data of this study are too limited to allow statistical analysis, these data are comparable to our own published data on the chromosome constitution of whole day 3 and day 4 embryos after conventional ART. LIMITATIONS, REASONS FOR CAUTION Array CGH technology determines relative quantification of chromosomal domains but does not allow for the visualization of chromosomal rearrangements, assessment of ploidy or detection of uniparental isodisomy. Conclusions drawn on segmental abnormalities should be treated with caution. Although the limited number of embryos analysed here precludes firm conclusions, they provide valuable data on possible causes of the reduced potential of IVM embryos. WIDER IMPLICATIONS OF THE FINDINGS This is the first study to describe the complete chromosome complement of all single blastomeres of good-morphology day 3 embryos obtained with IVM (including the presence of IBMX in a pre-incubation medium). The results demonstrate that a high proportion of good-morphology embryos are aneuploid and that there is no obvious increase in aneuploidies as a result of IVM which seems to suggest that the reduced efficiency of IVM technology compared with standard IVF may be accounted for by factors other than aneuploidy, such as cytoplasmic defects or reduced endometrial receptivity. STUDY FUNDING/COMPETING INTERESTS This study was funded by the TBM (Applied Biomedical Research with Societal Finality) programme of the IWT (Agency for Innovation through Science and Technology - Flanders, 110680) and by a Methusalem grant of the Vrije Universiteit Brussel. C.S. is a post-doctoral fellow of the Fund for Scientific Research Flanders (FWO - Vlaanderen). K.J. is a PhD student funded by the FWO. The University of Adelaide owns a patent family associated with IVM technologies that is licensed to Cook Medical. R.B.G. and J.G.T. are inventors. The remaining authors have no conflict of interest to declare.
Collapse
Affiliation(s)
- C Spits
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium Centre for Reproductive Medicine, UZ Brussel, 1090 Brussels, Belgium
| | - L Guzman
- Research Group Follicle Biology, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - A Mertzanidou
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium Centre for Reproductive Medicine, UZ Brussel, 1090 Brussels, Belgium
| | - K Jacobs
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium Centre for Reproductive Medicine, UZ Brussel, 1090 Brussels, Belgium
| | - C Ortega-Hrepich
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium Centre for Reproductive Medicine, UZ Brussel, 1090 Brussels, Belgium
| | - R B Gilchrist
- Discipline of Obstetrics & Gynaecology, School of Women's & Children's Health, University of New South Wales, Sydney, Australia
| | - J G Thompson
- Robinson Research Institute, School of Paediatrics and Reproductive Health, ARC Centre of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, Australia
| | - M De Vos
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium Centre for Reproductive Medicine, UZ Brussel, 1090 Brussels, Belgium Research Group Follicle Biology, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - J Smitz
- Research Group Follicle Biology, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - K Sermon
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, 1090 Brussels, Belgium Centre for Reproductive Medicine, UZ Brussel, 1090 Brussels, Belgium
| |
Collapse
|
45
|
Bennmann D, Horstkorte R, Hofmann B, Jacobs K, Navarrete-Santos A, Simm A, Bork K, Gnanapragassam VS. Advanced glycation endproducts interfere with adhesion and neurite outgrowth. PLoS One 2014; 9:e112115. [PMID: 25386903 PMCID: PMC4227844 DOI: 10.1371/journal.pone.0112115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 10/13/2014] [Indexed: 11/26/2022] Open
Abstract
Advanced glycation endproducts (AGEs) represent a non-enzymatic posttranslational protein modification. AGEs are generated by a series of chemical reactions of free reducing monosaccharides, such as glucose, fructose or metabolites of the monosaccharide metabolism with amino groups of proteins. After oxidation, dehydration and condensation, stable AGE-modifications are formed. AGE-modified proteins accumulate in all cells and tissues as a normal feature of ageing and correlate with the glucose concentration in the blood. AGEs are increased in diabetic patients and play a significant role in the pathogenesis of most age-related neural disorders, such as Alzheimer’s disease. We examined the role of AGEs on neurite outgrowth of PC12 cells. We induced the formation of AGEs using the reactive carbonyl compound methylglyoxal (MGO) as a physiological metabolite of glucose. We found that AGE-modification of laminin or collagen interfered with adhesion but not with neurite outgrowth of PC12 cells. Furthermore, the AGE-modification of PC12 cell proteins reduced NGF-induced neurite outgrowth. In conclusion, our data show that AGEs negatively influence neural plasticity.
Collapse
Affiliation(s)
- Dorit Bennmann
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Rüdiger Horstkorte
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Britt Hofmann
- Department of Cardiothoracic Surgery, University Hospital, Halle (Saale), Germany
| | - Kathleen Jacobs
- Department of Cardiothoracic Surgery, University Hospital, Halle (Saale), Germany
| | | | - Andreas Simm
- Department of Cardiothoracic Surgery, University Hospital, Halle (Saale), Germany
| | - Kaya Bork
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Vinayaga S. Gnanapragassam
- Institute for Physiological Chemistry, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
- * E-mail:
| |
Collapse
|
46
|
Jacobs K, Navarrete Santos A, Simm A, Silber RE, Hofmann B. The skin autofluorescence reflects the posttranslational glycation grade of the matrix protein collagen. Free Radic Biol Med 2014; 75 Suppl 1:S34. [PMID: 26461346 DOI: 10.1016/j.freeradbiomed.2014.10.772] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Advanced glycation end products (AGEs) seem to be involved in ageing as well as in the development of cardiovascular diseases. Accumulation of AGEs contribute to tissue stiffness and organ dysfunction by crosslinking extracellular matrix proteins like collagen. We aimed to assess whether AGE-modified cardiac tissue collagen and AGE related skin autofluorescence may reflect the cardiac function and have a prognostic value for the outcome of coronary artery bypass surgery patients. Therefore, AGE-modifications in collagen from 72 male patients undergoing isolated coronary artery bypass graft (CABG) surgery were analyzed. Collagen fractions were isolated from the right atrial auricle and the residual bypass graft material (saphenous vein) of these patients and quantified by 4-hydroxyproline assay. AGE modifications were determined by the AGE intrinsic fluorescence (excitation 360nm/emission 440nm). The skin autofluorescence (sAF) as a non-invasive parameter was measured using the AGE reader. The non-extractable collagen contained the highest amounts of AGEs and positively correlates with the patients age (p=0.0001), blood glucose level (p=0.002), HbA1c level (p=0.01) and sAF (p=0.008). The right atrial auricle collagen showed significantly more modifications compared to vein graft material of the same patient (p=0,001). Skin autofluorescence positively correlates with AGE content in cardiac tissue (p=0.01) and therefore could be used as a predictor of tissue stiffness in patients with coronary heart disease.
Collapse
Affiliation(s)
- Kathleen Jacobs
- Martin-Luther University Halle-Wittenberg (University Hospital), Department of Cardiothoracic Surgery, Germany..
| | - Alexander Navarrete Santos
- Martin-Luther University Halle-Wittenberg (University Hospital), Department of Cardiothoracic Surgery, Germany
| | - Andreas Simm
- Martin-Luther University Halle-Wittenberg (University Hospital), Department of Cardiothoracic Surgery, Germany
| | - Rolf-Edgar Silber
- Martin-Luther University Halle-Wittenberg (University Hospital), Department of Cardiothoracic Surgery, Germany
| | - Britt Hofmann
- Martin-Luther University Halle-Wittenberg (University Hospital), Department of Cardiothoracic Surgery, Germany
| |
Collapse
|
47
|
Abstract
OBJECTIVE The purpose of this study was two-fold: To obtain descriptive information regarding general physical and mental habits of music students and to ascertain if there are any associations between specific daily activities or habits and the appearances of these injuries. STUDY DESIGN Questionnaires were distributed to three hundred music students at Boston University. Of the 45 respondents, 19 students were willing to participate in an interview. Descriptive statistics were analyzed and comparisons were made to a similar study which was conducted at New England Conservatory in Boston, Massachusetts (Hagglund, K., Unpublished study, 1994). RESULTS The results suggest that Boston University music students follow expected trends reported in previous research (Fishbein and Middlestadt, 1988; Manchester and Fielder, 1991; Hagglund, 1994). Eighty two percent (n=37) of the respondents were performance majors and the majority of them began playing their instrument at age 10. Out of the 45 respondents, 28 were female of whom 68% (n=19) reported having a music-related injury. Of the remaining 17 males, 53% (n=9) reported also having a music-related injury. Sophomores and juniors accounted for 15 (54%) of the total 28 musicians with injuries in this study. The typical practice habits that were described by the respondents included 2 h sessions, with 10-15 min breaks each hour. Most musicians disclosed to occasionally playing their instruments even when experiencing pain. RESULTS from this study suggest that as the hours spent playing increased, so did the incidence of injury. Medical attention from neurologists, general practitioners, performing arts specialists and laryngologists was pursued by 18 (64%) of the 28 injured musicians. Sixty-one percent of the respondents with injuries saw more than one rehabilitation specialists, including physical therapists (50%); Alexander/Feldenkrais teachers (44%) and massage therapists (28%). More than one treatment method was given to 74% of the injured. These treatment methods included methods such as: Altering posture, habits or playing technique, exercise and stretching, rest, ice and massage. Satisfaction in career and the ability to live up to self expectations was high, while performance anxiety was not bothersome for 82% of the respondents. Fifty-two percent reported reacting well to stress and 44% described having an average level of self-consciousness. Most respondents (89%) participated in some type of physical fitness, most exercising either one (30%) or three (23%) days a week, and 75% reported that they stretch prior to playing. CONCLUSION This study provides information on the general habits of music studtents which can be beneficial to rehabilitation specialists, as well as other medical professionals treating musicians. By understanding the lifestyles and dynamics of being a musician, rehabilitation specialists can devise better individualized intervention and preventative strategies. Unfortunately, musicians remain uninformed on the current treatments, rehabilitation approaches, and most importantly the predisposing and preventative factors of music-related injuries. Occupational therapists, physical therapists and other rehabilitation specialists can and should be the professionals to provide guidance to the population of musicians on the above mentioned factors.
Collapse
Affiliation(s)
- K L Hagglund
- Department of Occupational Therapy, Boston University, 635 Commonwealth Ave., Boston, MA 02215, USA
| | - K Jacobs
- Department of Occupational Therapy, Boston University, 635 Commonwealth Ave., Boston, MA 02215, USA
| |
Collapse
|
48
|
Affiliation(s)
- R K Schwartz
- University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - K Jacobs
- Department of Occupational Therapy, Boston University, Sargent College, Boston, Massachusetts
| |
Collapse
|
49
|
Ott C, Jacobs K, Haucke E, Navarrete Santos A, Grune T, Simm A. Role of advanced glycation end products in cellular signaling. Redox Biol 2014; 2:411-29. [PMID: 24624331 PMCID: PMC3949097 DOI: 10.1016/j.redox.2013.12.016] [Citation(s) in RCA: 750] [Impact Index Per Article: 75.0] [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: 12/19/2013] [Accepted: 12/19/2013] [Indexed: 12/18/2022] Open
Abstract
Improvements in health care and lifestyle have led to an elevated lifespan and increased focus on age-associated diseases, such as neurodegeneration, cardiovascular disease, frailty and arteriosclerosis. In all these chronic diseases protein, lipid or nucleic acid modifications are involved, including cross-linked and non-degradable aggregates, such as advanced glycation end products (AGEs). Formation of endogenous or uptake of dietary AGEs can lead to further protein modifications and activation of several inflammatory signaling pathways. This review will give an overview of the most prominent AGE-mediated signaling cascades, AGE receptor interactions, prevention of AGE formation and the impact of AGEs during pathophysiological processes.
Collapse
Key Words
- ADAMST, a disintegrin and metalloproteinase with a thrombospondin type 1 motif
- AGE, advanced glycation end products
- AGE-receptors
- Advanced glycation end products
- Age-associated diseases
- Aggregates
- Aging
- E, from embryonic day
- EGFR, epidermal growth factor receptor
- ERK, extracellular-signal regulated kinase
- F3NK, fructosamine 3-phosphokinase
- FKHRL1, forkhead transcription factor
- HDL, high density lipoprotein
- HMGB1, high-mobility-group-protein B1
- HNE, 4-hydroxy-trans-2-nonenal
- Jak1/2, Janus kinase 1/2
- LDL, low density lipoprotein
- MDA, malondialdehyde
- MEKK, mitogen-activated protein/ERK kinase kinases
- MnSOD, manganese superoxide dismutase
- NF-κB
- Nf-κB, nuclear factor-light-chain-enhancer of activated B
- Oxidative stress
- PIK3, phosphoinositol 3 kinase
- RAGE
- RAGE, receptor of AGEs
- RCC, reactive carbonyl compounds
- Reactive carbonyl compounds
- S100B, S100 calcium binding protein B
- SIRt1, NAD+-dependent deacetylase and survival factor 1
- SR-A, scavenger receptor class A
- Signaling
- Stat 1/2, signal transducers and activators of transcription 1/2
- VSMC, vascular smooth muscle cells
Collapse
Affiliation(s)
- Christiane Ott
- Department of Nutritional Toxicology, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Kathleen Jacobs
- Clinic for Cardiothoracic Surgery, University Hospital Halle (Saale), Martin-Luther-University of Halle-Wittenberg, Ernst-Grube Strasse 40, D-06120 Halle (Saale), Germany
| | - Elisa Haucke
- Institute for Anatomy and Cell Biology, Faculty of Medicine, Martin-Luther-University of Halle-Wittenberg, 06108 Halle (Saale), Germany
| | - Anne Navarrete Santos
- Institute for Anatomy and Cell Biology, Faculty of Medicine, Martin-Luther-University of Halle-Wittenberg, 06108 Halle (Saale), Germany
| | - Tilman Grune
- Department of Nutritional Toxicology, Institute of Nutrition, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Andreas Simm
- Clinic for Cardiothoracic Surgery, University Hospital Halle (Saale), Martin-Luther-University of Halle-Wittenberg, Ernst-Grube Strasse 40, D-06120 Halle (Saale), Germany
| |
Collapse
|
50
|
Nguyen HT, Geens M, Mertzanidou A, Jacobs K, Heirman C, Breckpot K, Spits C. Gain of 20q11.21 in human embryonic stem cells improves cell survival by increased expression of Bcl-xL. Mol Hum Reprod 2013; 20:168-77. [PMID: 24217388 DOI: 10.1093/molehr/gat077] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Gain of 20q11.21 is a chromosomal abnormality that is recurrently found in human pluripotent stem cells and cancers, strongly suggesting that this mutation confers a proliferative or survival advantage to these cells. In this work we studied three human embryonic stem cell (hESC) lines that acquired a gain of 20q11.21 during in vitro culture. The study of the mRNA gene expression levels of the loci located in the common region of duplication showed that HM13, ID1, BCL2L1, KIF3B and the immature form of the micro-RNA miR-1825 were up-regulated in mutant cells. ID1 and BCL2L1 were further studied as potential drivers of the phenotype of hESC with a 20q11.21 gain. We found no increase in the protein levels of ID1, nor the downstream effects expected from over-expression of this gene. On the other hand, hESC with a gain of 20q11.21 had on average a 3-fold increase of Bcl-xL (the anti-apoptotic isoform of BCL2L1) protein levels. The mutant hESC underwent 2- to 3-fold less apoptosis upon loss of cell-to-cell contact and were ∼2-fold more efficient in forming colonies from a single cell. The key role of BCL2L1 in this mutation was further confirmed by transgenic over-expression of BCL2L1 in the wild-type cells, leading to apoptosis-resistant cells, and BCL2L1-knock-down in the mutant hESC, resulting in a restoration of the wild-type phenotype. This resistance to apoptosis supposes a significant advantage for the mutant cells, explaining the high frequency of gains of 20q11.21 in human pluripotent stem cells.
Collapse
Affiliation(s)
- H T Nguyen
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Jette, Brussels, Belgium
| | | | | | | | | | | | | |
Collapse
|