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Petruk N, Siddiqui A, Tadayon S, Määttä J, Mattila PK, Jukkola A, Sandholm J, Selander KS. CD73 regulates zoledronate-induced lymphocyte infiltration in triple-negative breast cancer tumors and lung metastases. Front Immunol 2023; 14:1179022. [PMID: 37533856 PMCID: PMC10390692 DOI: 10.3389/fimmu.2023.1179022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/23/2023] [Indexed: 08/04/2023] Open
Abstract
Introduction Bisphosphonates (BPs) are bone-protecting osteoclast inhibitors, typically used in the treatment of osteoporosis and skeletal complications of malignancies. When given in the adjuvant setting, these drugs may also prevent relapses and prolong overall survival in early breast cancer (EBC), specifically among postmenopausal patients. Because of these findings, adjuvant nitrogen-containing BPs (N-BPs), such as zoledronate (ZOL), are now the standard of care for high-risk EBC patients, but there are no benefit-associated biomarkers, and the efficacy remains low. BPs have been demonstrated to possess anti-tumor activities, but the mechanisms by which they provide the beneficial effects in EBC are not known. Methods We used stably transfected 4T1 breast cancer cells together with suppression of CD73 (sh-CD73) or control cells (sh-NT). We compared ZOL effects on tumor growth and infiltrating lymphocytes (TILs) into tumors and lung metastases using two mouse models. B cell depletion was performed using anti-CD20 antibody. Results Sh-CD73 4T1 cells were significantly more sensitive to the growth inhibitory effects of n-BPs in vitro. However, while ZOL-induced growth inhibition was similar between the tumor groups in vivo, ZOL enhanced B and T lymphocyte infiltration into the orthotopic tumors with down-regulated CD73. A similar trend was detected in lung metastases. ZOL-induced tumor growth inhibition was found to be augmented with B cell depletion in sh-NT tumors, but not in sh-CD73 tumors. As an internal control, ZOL effects on bone were similar in mice bearing both tumor groups. Discussion Taken together, these results indicate that ZOL modifies TILs in breast cancer, both in primary tumors and metastases. Our results further demonstrate that B cells may counteract the growth inhibitory effects of ZOL. However, all ZOL-induced TIL effects may be influenced by immunomodulatory characteristics of the tumor.
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Affiliation(s)
- Nataliia Petruk
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Arafat Siddiqui
- Institute of Biomedicine, University of Turku, Turku, Finland
- Western Cancer Centre FICAN West, Turku, Finland
| | - Sina Tadayon
- MediCity Research Laboratory, University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Jorma Määttä
- Institute of Biomedicine, University of Turku, Turku, Finland
- Turku Center for Disease Modeling, University of Turku, Turku, Finland
| | - Pieta K. Mattila
- Institute of Biomedicine, University of Turku, Turku, Finland
- MediCity Research Laboratory, University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Arja Jukkola
- Department of Oncology, Tampere University Hospital, Tays Cancer Center, Tampere, Finland
| | - Jouko Sandholm
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Katri S. Selander
- Department of Oncology and Radiation Therapy, Oulu University Hospital, Oulu, Finland
- Cancer Research and Translational Medicine Research Unit, University of Oulu, Oulu, Finland
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Kaprio H, Siddiqui A, Saustila L, Heuser VD, Gardberg M. The oncogenic properties of the EWSR1::CREM fusion gene are associated with polyamine metabolism. Sci Rep 2023; 13:4884. [PMID: 36966162 PMCID: PMC10039922 DOI: 10.1038/s41598-023-31576-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 03/14/2023] [Indexed: 03/27/2023] Open
Abstract
The EWSR1::CREM fusion gene, caused by a chromosomal translocation t(10;22)(p11;q12), has been discovered in divergent malignancies, ranging from low-grade to highly malignant cancers. The translocation gives rise to a chimeric protein, EWSR1::CREM. The molecular mechanisms behind the oncogenic properties of the EWSR1::CREM protein have not previously been systematically characterized. In this study, we performed transcriptional profiling of the melanoma cell line CHL-1, with depletion of endogenous EWSR1::CREM protein using siRNA mediated knockdown. We found that the expression of 712 genes was altered (Log2 fold-change ≥ 2). We performed pathway analysis to identify EWSR1::CREM mediated pathways and cell studies to examine functional differences brought upon by the knockdown. Altered pathways involved cell cycle and proliferation, this was further validated by the cell studies where cell migration was affected as well. Among the target genes with the greatest downregulation, we discovered ODC1-a well-established oncogenic enzyme that can be pharmacologically inhibited and is essential for polyamine synthesis. We found that the main effects seen upon EWSR1::CREM knockdown can be reproduced by directly silencing ODC1 expression. These findings provide novel insights into pathogenesis of tumors harboring a EWSR1::CREM fusion gene, hopefully facilitating the development of novel therapeutic strategies.
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Affiliation(s)
- Heidi Kaprio
- Department of Pathology, Turku University Hospital, Kiinamyllynkatu 10 D, Turku, Finland.
- Institute of Biomedicine, University of Turku, Turku, Finland.
| | - Arafat Siddiqui
- Department of Obstetrics and Gynecology, Turku University Hospital, Turku, Finland
| | - Lotta Saustila
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Vanina D Heuser
- Department of Pathology, Turku University Hospital, Kiinamyllynkatu 10 D, Turku, Finland
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Maria Gardberg
- Department of Pathology, Turku University Hospital, Kiinamyllynkatu 10 D, Turku, Finland
- Institute of Biomedicine, University of Turku, Turku, Finland
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Petruk N, Siddiqui A, Tadayon S, Jukkola A, Määttä J, Mattila P, Sandholm J, Selander KS. Abstract PD2-07: Tumor CD73 regulates zoledronate induced TIL accumulation into triple negative breast cancer. Cancer Res 2023. [DOI: 10.1158/1538-7445.sabcs22-pd2-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Abstract
Background: CD73 is a membrane-bound protein that by extracellular adenosine production, regulates immune cell function. Low CD73 expression is associated with better prognosis among triple-negative breast cancer (TNBC) patients. Adjuvant bisphosphonates (BPs, such as zoledronate) improve survival among post-menopausal breast cancer patients, but the mechanism for this is unknown. Since BPs also affect immune cells, we studied 1) whether zoledronate-treatment has an effect on tumor infiltrating lymphocytes (TILs) and 2) whether tumor CD73 expression affects these responses in TNBC tumors. Methods: 4T1 mouse mammary cells, stably expressing non-targeting shRNA (sh-NT, control cells) or sh-CD73 were inoculated into the mammary fat pads of Balb/c mice. The mice were treated with i.p. vehicle or zoledronate (ZOL) each 4th day for total of six times. Additionally, to deplete B-cells, the mice were treated with an anti-CD20 or control IgG antibody. Tumor sizes were assessed with a caliper, TILs were studied with immunostainings. Blood lymphocytes were analyzed with Flow cytometry. Results: Sh-CD73 cells formed significantly smaller tumors, than sh-NT cells. ZOL significantly inhibited the growth of both sh-CD73 and sh-NT tumors, but at sacrifice, this effect of ZOL was more significant against sh-CD73 tumors. ZOL increased the % of CD19+/CD21+ and CD19+/23+ in blood of both mice groups, and this effect was inhibited by anti-CD20 antibody. Although neither treatment alone had an effect, the % of CD3+/CD8+ cells in blood were increased in both mice groups by the combination of ZOL and anti-CD20-antibody. ZOL induced accumulation of B220+, CD4+ and CD8+ TILs into both tumor groups. These TIL effects were reduced with anti-CD20 antibody treatment. Anti-CD20 antibody alone inhibited significantly sh-CD73 tumor growth. Anti-CD20 antibody did not interfere with ZOL inhibition of tumor growth in either group. Conclusions: ZOL has inflammatory effects on blood lymphocytes and TILs, which may be affected by tumor expression of immune system regulating proteins, such as CD73. B cell depletion may further prevent tumor growth, in the context of CD73 inhibition. Further studies are needed to investigate whether B-cell inhibition affects ZOL-induced tumor growth inhibition.
Citation Format: Nataliia Petruk, Arafat Siddiqui, Sina Tadayon, Arja Jukkola, Jorma Määttä, Pieta Mattila, Jouko Sandholm, Katri S. Selander. Tumor CD73 regulates zoledronate induced TIL accumulation into triple negative breast cancer. [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr PD2-07.
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Affiliation(s)
| | - Arafat Siddiqui
- 2University of Turku, Western Cancer Centre FICAN West, Turku, Finland
| | - Sina Tadayon
- 3MediCity Research Laboratory, University of Turku, Turku, Finland
| | | | - Jorma Määttä
- 5Turku Center for Disease Modeling, University of Turku, Turku, Finland
| | - Pieta Mattila
- 6MediCity Research Laboratory, Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Jouko Sandholm
- 7Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
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McDonough R, Bechstein M, Fiehler J, Zanolini U, Rai H, Siddiqui A, Shotar E, Rouchaud A, Kallmes K, Goyal M, Gellissen S. Radiologic Evaluation Criteria for Chronic Subdural Hematomas: Recommendations for Clinical Trials. AJNR Am J Neuroradiol 2022; 43:1550-1558. [PMID: 35618427 PMCID: PMC9731241 DOI: 10.3174/ajnr.a7503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/08/2022] [Indexed: 12/15/2022]
Abstract
Embolization of the middle meningeal artery has gained substantial interest as a therapy for chronic subdural hematomas. For the results of the currently running chronic subdural hematoma trials to inform clinical practice, sufficient accuracy and matching definitions are necessary. We summarized the current practice in chronic subdural hematoma evaluation and derived suggestions on reporting standards using the {Nested} Knowledge AutoLit living review platform. On the basis of the most commonly reported data elements, we suggested a set of standardized image-based study end points for chronic subdural hematoma evaluation for future trials. The measurement methods and reporting standards as proposed in this article have been derived from published best practices and are endorsed by the European Society of Minimally Invasive Neurological Therapy's research committee. The standardization of radiologic outcome measures and measurement techniques in chronic subdural hematoma embolization trials would increase the impact and implication of each trial as well as facilitate data pooling for increased statistical power and, therefore, translation to clinical practice.
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Affiliation(s)
- R McDonough
- From the Department of Diagnostic and Interventional Neuroradiolog (R.M., M.B., J.F., U.Z., S.G.), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Research Committee (R.M., M.B., J.F., U.Z., E.S., S.G.), European Society of Minimally Invasive Neurological Therapy, Zürich, Switzerland
- Department of Radiology (R.M., M.G.), University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - M Bechstein
- From the Department of Diagnostic and Interventional Neuroradiolog (R.M., M.B., J.F., U.Z., S.G.), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Research Committee (R.M., M.B., J.F., U.Z., E.S., S.G.), European Society of Minimally Invasive Neurological Therapy, Zürich, Switzerland
| | - J Fiehler
- From the Department of Diagnostic and Interventional Neuroradiolog (R.M., M.B., J.F., U.Z., S.G.), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Research Committee (R.M., M.B., J.F., U.Z., E.S., S.G.), European Society of Minimally Invasive Neurological Therapy, Zürich, Switzerland
| | - U Zanolini
- From the Department of Diagnostic and Interventional Neuroradiolog (R.M., M.B., J.F., U.Z., S.G.), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Research Committee (R.M., M.B., J.F., U.Z., E.S., S.G.), European Society of Minimally Invasive Neurological Therapy, Zürich, Switzerland
| | - H Rai
- Department of Neurosurgery (H.R., A.S.), University at Buffalo, Buffalo, New York
| | - A Siddiqui
- Department of Neurosurgery (H.R., A.S.), University at Buffalo, Buffalo, New York
| | - E Shotar
- Research Committee (R.M., M.B., J.F., U.Z., E.S., S.G.), European Society of Minimally Invasive Neurological Therapy, Zürich, Switzerland
- Neuroradiology Department (E.S.), Pitié-Salpêtrière Hospital, Paris, France
| | - A Rouchaud
- Department of Neuroradiology (A.R.), Dupuytren University Hospital of Limoges, Limoges Cedex, France
| | - K Kallmes
- Nested Knowledge, Inc (K.K.), St. Paul, Minnesota
| | - M Goyal
- Department of Radiology (R.M., M.G.), University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - S Gellissen
- From the Department of Diagnostic and Interventional Neuroradiolog (R.M., M.B., J.F., U.Z., S.G.), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Research Committee (R.M., M.B., J.F., U.Z., E.S., S.G.), European Society of Minimally Invasive Neurological Therapy, Zürich, Switzerland
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Shao Z, Huang T, Fan Z, Wang Y, Yan X, Yang H, Wang S, Pang D, Li H, Wang H, Geng C, Huang L, Siddiqui A, Wang B, Xie B, Sun G, Restuccia E. 1MO The fixed-dose combination of pertuzumab and trastuzumab for subcutaneous injection (PH FDC SC) in Chinese patients (pts) with HER2-positive early breast cancer (EBC): Primary analysis of the phase III, randomised FDChina study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.008] [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: 12/07/2022] Open
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Nolan GS, Dunne JA, Lee AE, Wade RG, Kiely AL, Pritchard Jones RO, Gardiner MD, Abbassi O, Abdelaty M, Ahmed F, Ahmed R, Ali S, Allan A, Allen L, Anderson I, Bakir A, Berwick D, Sarala BBN, Bhat W, Bloom O, Bolton L, Brady N, Campbell E, Capitelli-McMahon H, Cassell O, Chalhoub X, Chalmers R, Chan J, Chu HO, Collin T, Cooper K, Curran TA, Cussons D, Daruwalla M, Dearden A, Delikonstantinou I, Dobbs T, Dunlop R, El-Muttardi N, Eleftheriadou A, Elamin SE, Eriksson S, Exton R, Fourie LR, Freethy A, Gardner E, Geh JL, Georgiou A, Georgiou M, Gilbert P, Gkorila A, Green D, Haeney J, Hamilton S, Harper F, Harrison C, Heinze Z, Hemington-Gorse S, Hever P, Hili S, Holmes W, Hughes W, Ibrahim N, Ismail A, Jallali N, James NK, Jemec B, Jica R, Kaur A, Kazzazi D, Khan M, Khan N, Khashaba H, Khera B, Khoury A, Kiely J, Kumar S, Patel PK, Kumbasar DE, Kundasamy P, Kyle D, Langridge B, Liu C, Lo M, Macdonald C, Anandan SM, Mahdi M, Mandal A, Manning A, Markeson D, Matteucci P, McClymont L, Mikhail M, Miller MC, Munro S, Musajee A, Nasrallah F, Ng L, Nicholas R, Nicola A, Nikkhah D, O'Hara N, Odili J, Oudit D, Patel A, Patel C, Patel N, Patel P, Peach H, Phillips B, Pinder R, Pinto-Lopes R, Plonczak A, Quinnen N, Rafiq S, Rahman K, Ramjeeawon A, Rinkoff S, Sainsbury D, Schumacher K, Segaren N, Shahzad F, Shariff Z, Siddiqui A, Singh P, Sludden E, Smith JRO, Song M, Stodell M, Tanos G, Taylor K, Taylor L, Thomson D, Tiernan E, Totty JP, Vaingankar N, Toh V, Wensley K, Whitehead C, Whittam A, Wiener M, Wilson A, Wong KY, Wood S, Yeoh T, Yii NW, Yim G, Young R, Zberea D, Jain A. National audit of non-melanoma skin cancer excisions performed by plastic surgery in the UK. Br J Surg 2022; 109:1040-1043. [DOI: 10.1093/bjs/znac232] [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: 02/15/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022]
Abstract
A national, multi-centre audit of non-melanoma skin cancer excisions by plastic surgery.
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Affiliation(s)
- Grant S Nolan
- Department of Plastic and Reconstructive Surgery, Royal Preston Hospital, Lancashire Teaching Hospitals NHS Trust , Fulwood, Preston , UK
| | - Jonathan A Dunne
- Department of Plastic and Reconstructive Surgery, Charing Cross and St Mary’s Hospitals, Imperial College Healthcare NHS Trust , London , UK
| | - Alice E Lee
- Department of Plastic and Reconstructive Surgery, Charing Cross and St Mary’s Hospitals, Imperial College Healthcare NHS Trust , London , UK
| | - Ryckie G Wade
- Leeds Institute for Medical Research, University of Leeds , Leeds , UK
- Department of Plastic and Reconstructive Surgery, Leeds Teaching Hospitals NHS Trust , Leeds , UK
| | - Ailbhe L Kiely
- Department of Plastic and Reconstructive Surgery, Royal Preston Hospital, Lancashire Teaching Hospitals NHS Trust , Fulwood, Preston , UK
| | - Rowan O Pritchard Jones
- Department of Plastic and Reconstructive Surgery, Whiston Hospital, St Helens and Knowsley Teaching Hospitals NHS Trust , Prescot , UK
| | - Matthew D Gardiner
- Department of Plastic and Reconstructive Surgery, Wexham Park Hospital, Frimley Health NHS Foundation Trust, Wexham , Slough , UK
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford , Oxford , UK
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- Department of Plastic and Reconstructive Surgery, Charing Cross and St Mary’s Hospitals, Imperial College Healthcare NHS Trust , London , UK
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford , Oxford , UK
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Sommakia S, Matsumura Y, Allred C, Pathi S, Tyagi E, Foulks J, Siddiqui A, Warner S. The PKM2 activator and molecular glue TP-1454 modulates tumor-immune responses by destabilizing T-regulatory cells. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00926-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Siddiqui A, Echols J, Fu L, Keeling K. 637 Messenger ribonucleic acid binding proteins PTBP1 and HNRNPL modulate cystic fibrosis transmembrane conductance regulator messenger ribonucleic acid abundance. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01327-3] [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: 11/05/2022]
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Joe R, Matsumura Y, Siddiqui A, Foulks J, Beg M, Thompson J, Yamamoto N, Spira A, Sarantopoulos J, Melear J, Lou Y, Lebedinsky C, Li J, Watanabe A, Warner S. The AXL inhibitor, TP-0903, reverses EMT and shows activity in non-small cell lung cancer preclinical models. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00954-6] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Roering P, Siddiqui A, Heuser VD, Potdar S, Mikkonen P, Oikkonen J, Li Y, Pikkusaari S, Wennerberg K, Hynninen J, Grenman S, Huhtinen K, Auranen A, Carpén O, Kaipio K. Effects of Wee1 inhibitor adavosertib on patient-derived high-grade serous ovarian cancer cells are multiple and independent of homologous recombination status. Front Oncol 2022; 12:954430. [PMID: 36081565 PMCID: PMC9445195 DOI: 10.3389/fonc.2022.954430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/27/2022] [Indexed: 11/25/2022] Open
Abstract
Objective A major challenge in the treatment of platinum-resistant high-grade serous ovarian cancer (HGSOC) is lack of effective therapies. Much of ongoing research on drug candidates relies on HGSOC cell lines that are poorly documented. The goal of this study was to screen for effective, state-of-the-art drug candidates using primary HGSOC cells. In addition, our aim was to dissect the inhibitory activities of Wee1 inhibitor adavosertib on primary and conventional HGSOC cell lines. Methods A comprehensive drug sensitivity and resistance testing (DSRT) on 306 drug compounds was performed on three patient-derived genetically unique HGSOC cell lines and two commonly used ovarian cancer cell lines. The effect of adavosertib on the cell lines was tested in several assays, including cell-cycle analysis, apoptosis induction, proliferation, wound healing, DNA damage, and effect on nuclear integrity. Results Several compounds exerted cytotoxic activity toward all cell lines, when tested in both adherent and spheroid conditions. In further cytotoxicity tests, adavosertib exerted the most consistent cytotoxic activity. Adavosertib affected cell-cycle control in patient-derived and conventional HGSOC cells, inducing G2/M accumulation and reducing cyclin B1 levels. It induced apoptosis and inhibited proliferation and migration in all cell lines. Furthermore, the DNA damage marker γH2AX and the number of abnormal cell nuclei were clearly increased following adavosertib treatment. Based on the homologous recombination (HR) signature and functional HR assays of the cell lines, the effects of adavosertib were independent of the cells' HR status. Conclusion Our study indicates that Wee1 inhibitor adavosertib affects several critical functions related to proliferation, cell cycle and division, apoptosis, and invasion. Importantly, the effects are consistent in all tested cell lines, including primary HGSOC cells, and independent of the HR status of the cells. Wee1 inhibition may thus provide treatment opportunities especially for patients, whose cancer has acquired resistance to platinum-based chemotherapy or PARP inhibitors.
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Affiliation(s)
- Pia Roering
- Institute of Biomedicine and Finnish Cancer Center (FICAN) West Cancer Centre, University of Turku and Turku University Hospital, Turku, Finland
- *Correspondence: Pia Roering, ; Olli Carpén,
| | - Arafat Siddiqui
- Institute of Biomedicine and Finnish Cancer Center (FICAN) West Cancer Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Vanina D. Heuser
- Institute of Biomedicine and Finnish Cancer Center (FICAN) West Cancer Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Swapnil Potdar
- High Throughput Biomedicine Unit, Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Piia Mikkonen
- Helsinki Institute of Life Science (HiLIFE), Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Jaana Oikkonen
- Research Program in Systems Oncology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Yilin Li
- Research Program in Systems Oncology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Sanna Pikkusaari
- Institute of Biomedicine and Finnish Cancer Center (FICAN) West Cancer Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Krister Wennerberg
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Johanna Hynninen
- Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
| | - Seija Grenman
- Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
| | - Kaisa Huhtinen
- Institute of Biomedicine and Finnish Cancer Center (FICAN) West Cancer Centre, University of Turku and Turku University Hospital, Turku, Finland
- Research Program in Systems Oncology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Annika Auranen
- Department of Obstetrics and Gynecology and Tays Cancer Centre, Tampere University Hospital, Tampere, Finland
| | - Olli Carpén
- Department of Pathology, Precision Cancer Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- *Correspondence: Pia Roering, ; Olli Carpén,
| | - Katja Kaipio
- Institute of Biomedicine and Finnish Cancer Center (FICAN) West Cancer Centre, University of Turku and Turku University Hospital, Turku, Finland
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McIntyre C, McLeod M, Tutt T, Petersen A, Lepori-Bui N, Patel S, Monterola G, Siddiqui A, Villar K, Tran C, Bainter C, Pham T, Diaz N, Lim L, Dibian Z, Wang L, Meyer E. Process Development and Manufacturing: GROWING A CELL THERAPY FACILITY TO SUPPORT SPONSORED CLINICAL TRIALS AND COMMERCIAL CELL THERAPY PRODUCTS. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00449-2] [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: 11/03/2022]
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Tutt T, Pham T, Brown A, Chinnasamy H, Feldman S, Egeler E, Patel S, Majzner R, Mackall C, Monje M, McLeod M, Lepori-Bui N, Villar K, Siddiqui A, Diaz N, Sukle N, McIntyre C, Meyer E. Regulatory Affairs, Quality Systems, Policy, and Ethics: INVESTIGATING PARTICULATES IN CELLULAR THERAPY PRODUCTS. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00486-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Petruk N, Siddiqui A, Määttä J, Sandholm J, Selander K. Abstract PD3-09: Cd73 may influence zoledronate-induced b- and t-cell accumulation into triple-negative breast tumors. Cancer Res 2022. [DOI: 10.1158/1538-7445.sabcs21-pd3-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: CD73 is an ecto-5′-nucleotidase, which converts AMP to adenosine. In breast cancer, CD73 expression is associated with prognosis, treatment responses to anthracyclines and tumor immunity. Bisphosphonates (BP) inhibit osteoclast-mediated bone resorption. When given in the adjuvant setting, BPs increase survival among post-menopausal breast cancer patients. Since BPs also affect cells of the immune system, we hypothesized that CD73 expression may affect BP responses in triple negative breast cancer cells. Methods: Cell viability and IC50 BPs doses were determined by WST-8 kit. Apoptotic rate and cell cycle arrest were showed by FACS. The number of caspase3/7- positive cells was accessed by a red fluorescence emission via IncuCyteS3. The apoptosis-associated genes mRNA expression was determined by qPCR. To compare BP effect on TNBC tumoral responses in vivo, we used immune-competent mouse models of breast cancer. Tumors were stained by immunofluorescence and immunohistochemically.Results: Suppression of CD73 expression, but not of enzymatic activity significantly sensitized TNBC cells to nitrogen-containing BPs (n-BPs), especially to zoledronate in vitro. The stronger growth inhibitory effects of n-BPs in CD73-suppressed cells were associated with G1 cell cycle arrest and increased apoptosis, as compared with representative control cells in vitro. Zoledronate similarly inhibited both control and CD73-suppressed TNBC tumor growthin immune-competent mice. CD73 suppression in tumors led to the lower lung metastatic burden and metastases size. Zoledronate effect on increased apoptosis was similar in both groups, but significant in CD73-suppressed tumors. Impaired angiogenesis was shown by decreased CD34-positive cell number in CD73-suppressed tumors. Zoledronate significantly increased infiltration of CD45R/B220+ B cells and cytotoxic CD8+ T cells into CD73-suppressed tumors.Conclusions: Suppressed CD73 sensitizes TNBC cells to n-BP treatment, resulting inapoptosis activation and delayed proliferation in vitro. Zoledronate induces a more profound accumulation of CD45R/B220+ B cells and CD8+ T cells into TNBC tumors with the lack of CD73. Since tumor B-cell infiltration has been associated with favourable patient prognosis in breast cancer, the significance of this B-cell effect of zoledronate warrants further investigation.
Citation Format: Nataliia Petruk, Arafat Siddiqui, Jorma Määttä, Jouko Sandholm, Katri Selander. Cd73 may influence zoledronate-induced b- and t-cell accumulation into triple-negative breast tumors [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr PD3-09.
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Affiliation(s)
- Nataliia Petruk
- University of Turku, Institute of Biomedicine, Turku, Finland
| | - Arafat Siddiqui
- University of Turku, Institute of Biomedicine, Turku, Finland
| | - Jorma Määttä
- University of Turku, Institute of Biomedicine, Turku, Finland
| | - Jouko Sandholm
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
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Siddiqui A, Tumiati M, Joko A, Sandholm J, Roering P, Aakko S, Vainionpää R, Kaipio K, Huhtinen K, Kauppi L, Tuomela J, Hietanen S. Targeting DNA Homologous Repair Proficiency With Concomitant Topoisomerase II and c-Abl Inhibition. Front Oncol 2021; 11:733700. [PMID: 34616682 PMCID: PMC8488401 DOI: 10.3389/fonc.2021.733700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/27/2021] [Indexed: 12/21/2022] Open
Abstract
Critical DNA repair pathways become deranged during cancer development. This vulnerability may be exploited with DNA-targeting chemotherapy. Topoisomerase II inhibitors induce double-strand breaks which, if not repaired, are detrimental to the cell. This repair process requires high-fidelity functional homologous recombination (HR) or error-prone non-homologous end joining (NHEJ). If either of these pathways is defective, a compensatory pathway may rescue the cells and induce treatment resistance. Consistently, HR proficiency, either inherent or acquired during the course of the disease, enables tumor cells competent to repair the DNA damage, which is a major problem for chemotherapy in general. In this context, c-Abl is a protein tyrosine kinase that is involved in DNA damage-induced stress. We used a low-dose topoisomerase II inhibitor mitoxantrone to induce DNA damage which caused a transient cell cycle delay but allowed eventual passage through this checkpoint in most cells. We show that the percentage of HR and NHEJ efficient HeLa cells decreased more than 50% by combining c-Abl inhibitor imatinib with mitoxantrone. This inhibition of DNA repair caused more than 87% of cells in G2/M arrest and a significant increase in apoptosis. To validate the effect of the combination treatment, we tested it on commercial and patient-derived cell lines in high-grade serous ovarian cancer (HGSOC), where chemotherapy resistance correlates with HR proficiency and is a major clinical problem. Results obtained with HR-proficient and deficient HGSOC cell lines show a 50–85% increase of sensitivity by the combination treatment. Our data raise the possibility of successful targeting of treatment-resistant HR-proficient cancers.
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Affiliation(s)
- Arafat Siddiqui
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Manuela Tumiati
- ONCOSYS, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - Alia Joko
- Department of Biology, Åbo Akademi University, Turku, Finland
| | - Jouko Sandholm
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Pia Roering
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Sofia Aakko
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Reetta Vainionpää
- Laboratory of Genetics, HUS Diagnostic Center, Helsinki University Hospital, Helsinki, Finland
| | - Katja Kaipio
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Kaisa Huhtinen
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Liisa Kauppi
- ONCOSYS, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - Johanna Tuomela
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Sakari Hietanen
- Turku University Hospital, FICAN West Cancer Centre, Turku, Finland
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15
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Siddiqui A, Touska P, Josifova D, Connor SEJ. Persistent Trigeminal Artery: A Novel Imaging Finding in CHARGE Syndrome. AJNR Am J Neuroradiol 2021; 42:1898-1903. [PMID: 34353785 DOI: 10.3174/ajnr.a7240] [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: 03/21/2021] [Accepted: 05/18/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Coloboma of the eye, Heart defects, Atresia of the choanae, Retardation of growth and/or development, Genital and/or urinary abnormalities, Ear abnormalities and deafness (CHARGE) syndrome is an autosomal dominant genetic disorder with evolving clinical diagnostic criteria. Recently, a number of additional anomalies have been described in this syndrome, which may aid in early diagnosis, particularly in incomplete phenotypes or atypical cases. The persistent trigeminal artery is an embryonic carotid-vertebral anastomosis, rarely seen in the healthy population, with a reported prevalence of 0.4%. Because we had observed the persistent trigeminal artery in patients with CHARGE syndrome, this study aimed to explore the prevalence of the persistent trigeminal artery in this syndrome. MATERIALS AND METHODS A retrospective study was performed at our tertiary center. MR imaging studies, clinical records, and genetic results were reviewed for patients diagnosed with CHARGE syndrome between 2006 and 2019. The prevalence of the persistent trigeminal artery in patients with CHARGE syndrome was recorded and compared with other established diagnostic criteria. RESULTS Twenty-five patients with CHARGE syndrome were included. The persistent trigeminal artery was demonstrated on MR imaging in 14/25 (56%) patients and was seen more frequently than 4 of 9 other established diagnostic criteria in our cohort. When individual major or minor diagnostic criteria were absent, the persistent trigeminal artery was still demonstrated on MR imaging in 52%-67% of these patients with CHARGE syndrome. CONCLUSIONS The prevalence of the persistent trigeminal artery in CHARGE syndrome of 56% is higher than that of some other established diagnostic criteria and much higher than that in the general population. The persistent trigeminal artery may be a useful addition to the expanding phenotype of CHARGE syndrome, supplementing other diagnostic criteria. Radiologists should be aware of this novel finding demonstrable on MR imaging.
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Affiliation(s)
- A Siddiqui
- From the Department of Radiology (A.S., P.T., S.E.J.C.) .,Department of Neuroradiology (A.S., S.E.J.C.), King's College Hospital NHS Foundation Trust, London, UK
| | - P Touska
- From the Department of Radiology (A.S., P.T., S.E.J.C.)
| | - D Josifova
- Genetics (D.J.), Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - S E J Connor
- From the Department of Radiology (A.S., P.T., S.E.J.C.).,Department of Neuroradiology (A.S., S.E.J.C.), King's College Hospital NHS Foundation Trust, London, UK.,School of Biomedical Engineering and Imaging Sciences (S.E.J.C.), St. Thomas' Hospital, King's College, London, UK
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16
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Ahmed Narikkoottungal S, Siddiqui A, Constantin A, Farrow S, Ahmed K. POS1177 REVAMPING BIOLOGIC THERAPY DURING COVID-19. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:The COVID-19 pandemic has caught us all by surprise – from governments to individuals; the medical fraternity being no exception. It has affected all walks of life; with its immense contagiosity, diverse and intriguing pathogenesis and manifestations differing from other viruses. It has indeed left humanity in dark, unchartered waters; particularly in the early months of the pandemic.Objectives:This article shares the experience, in a Rheumatology department in a District General Hospital (DGH) in the United Kingdom, of managing patients on Biologic (b) and Targeted Synthetic (ts) DMARDs, in the midst of the COVID-19 Pandemic.Methods:All Rheumatology patients at the Princess Alexandra Hospital (PAH) in Harlow newly started on a biologic or targeted synthetic DMARD between 3rd July and 3rd Oct 2020 were identified. These patients had active inflammatory arthritis. Each patient was discussed in a dedicated Multi-Disciplinary Team (MDT) meeting and a consensus on treatment reached in-line with local and National guidelines.Figure 1.A slide presented at the Essex Rheumatology Association (ERA) meeting explaining the process adopted at the Rheumatology Department at Harlow during the peak of COVID-19 pandemic with new b/ts DMARD patients.Results:Of the 50 patients identified; 39 had Rheumatoid Arthritis, 6 had Ankylosing Spondylitis and 5 had Psoriatic Arthritis. Of these 50 patients, 5 patients decided against treatment during the stage of ‘Enhanced Verbal Consent’. These patients were flaring recurrently and were in regular contact with the department. However, they were afraid to start new Biologic treatment because of the risks of Covid-19. The breakdown of the biologic agents used in the remaining 45 patients were as follows: Adalimumab:11, Rituximab: 10, Etanercept: 9, Tofacitinib: 11, Tocilizumab SC: 3, Tocilizumab IV: 1, Sarilumab: 2, Secukinumab: 1, Infliximab: 1, Baricitinib: 1, Apremilast: 1Figure 2.Breakdown of the various b/ts DMARD agents newly started in the 45 patients between 3/7/20 - 3/10/20 at PA Hospital, Harlow, UKConclusion:The over-riding principle that guided the Department during the COVID crisis was: primum non nocere (first, do no harm). The adherence to the Case Based Discussions (CBDs) positively impacted on decision making, ensuring safe initiation of Biologic DMARDs even during the height of the pandemic. This is vital to achieve early disease remission. The MDT meetings comprising Doctors, Specialist Pharmacist and Nurse Specialists ensured prompt risk stratification of individual patients. It gave patients the opportunity to be part of the decision-making - evident in the five of the fifty patients, who opted to defer the start date of their treatments. The choice of the new Biologic agent was based on the latest National COVID-19 guidelines. The agents with the shortest half-life were selected. Moreover, patients for Rituximab were given one pulsed infusion, as opposed to two infusions. Only one of the 45 patients started on a Biologic agent over this period, either was tested positive or had symptoms suggestive of COVID-19.References:[1]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7261974[2]https://rmdopen.bmj.com/content/6/2/e001314[3]https://www.nejm.org/doi/full/10.1056/nejmc2009567[4]https://www.jrheum.org/content/early/2020/05/13/jrheum.200527[5]https://www.uptodate.com/contents/coronavirus-disease-2019-covid-19-care-of-adult-patients-with-systemic-rheumatic-disease[6]www.england.nhs.uk/clinical-guide-rheumatology-patients-v1-19-march-2020.pdf[7]https://www.rheumatology.org.uk/practice-quality/covid-19-guidance[8]https://www.nice.org.uk/guidance/ng167/chapter/4-Treatment-considerations[9]https://www.gmc-uk.org/ethical-guidance/ethical-guidance-for-doctors/decision-making-and-consentAcknowledgements:We acknowledge the whole Rheumatology Dept at Harlow for their sincere team work during the COVID-19 pandemic – Sabaa Naz (Rheumatology Pharmacist), Mona Kamal Zou (Biologics Nurse Specialist), Lily Robinson (DMARD Nurse Specialist), Mary Surendran (Osteoporosis Nurse Specialist), Janet Bell (Secretary to Dr Ahmed) and Claire Stroud (Secretary to Dr Farrow).Disclosure of Interests:None declared.
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Masterton G, Aly R, Siddiqui A, Talwar C, Talwar C. 408 Hand Trauma Consent. Br J Surg 2021. [DOI: 10.1093/bjs/znab134.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Background
Consenting patients for procedures is a regular process for a trainee surgeon. The process of consent has come under scrutiny in recent years due to inadequacies highlighted by legal cases. With over 1.36 million patients attending A&E per year with hand trauma, this is the most common acute referral to Plastic surgeons.
Aim
To review current local practice by auditing risks and complications from hand trauma consent forms.
To develop and implement a standardised pre-printed label including relevant risks and complications for hand trauma.
Method
Sample of hand trauma related consent forms audited assessing and comparing the risks and complications sections to a standardised set agreed locally by Consultant Plastic surgeons, cross referenced with literature.
Standardised label including relevant risks and complications put into practice then re-audit their use.
Results
Use of the new standardised label demonstrated an elimination of omissions and increased adherence to 100% for all the relevant risks and complications.
Conclusions
Significant improvements in the process of consent were achieved through the development and implementation of a standardised risk and complications label. This ensures standards from the GMC and RCS guidelines are satisfied; positively impacting on service provision by improving the quality of the consent process.
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Affiliation(s)
- G Masterton
- The Countess of Chester Hospital, Chester, United Kingdom
| | - R Aly
- The Countess of Chester Hospital, Chester, United Kingdom
| | - A Siddiqui
- The Countess of Chester Hospital, Chester, United Kingdom
| | - C Talwar
- Chelsea and Westminster Hospital, London, United Kingdom
| | - C Talwar
- Chelsea and Westminster Hospital, London, United Kingdom
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Krebs M, Helland Å, Carcereny Costa E, Arriola Aperribay E, Dómine Gómez M, Trigo Pérez J, Thompson J, Strauss J, Ortega Granados A, Felip E, Schmidt E, Chisamore M, Madeleine N, Rayford A, Lorens K, Siddiqui A, Gabra H, Nautiyal J, Micklem D, Lorens J, Spicer J. OA01.07 A Phase II Study of the Oral Selective AXL Inhibitor Bemcentinib with Pembrolizumab in Patients with Advanced NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Culleton S, McKenna B, Dixon L, Taranath A, Oztekin O, Prasad C, Siddiqui A, Mankad K. Imaging pitfalls in paediatric posterior fossa neoplastic and non-neoplastic lesions. Clin Radiol 2021; 76:391.e19-391.e31. [PMID: 33648757 DOI: 10.1016/j.crad.2020.12.011] [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: 10/30/2019] [Accepted: 12/22/2020] [Indexed: 11/27/2022]
Abstract
Paediatric posterior fossa lesions can have much overlap in their clinical and radiological presentation. There are, however, a number of key imaging features that can help the reading radiologist to distinguish tumours from important tumour mimics which are often inflammatory or metabolic entities. This pictorial review provides a number of important cases that proved challenging on imaging and illustrates some common pitfalls when interpreting lesions in the posterior fossa in children. Not everything that is abnormal will be a tumour, but often other causes are overlooked and misinterpreted as tumours, leading to great morbidity for that child. This article highlights some lesions that were mistaken as tumours and will introduce the reader to less commonly seen pathologies which are important to consider on a differential list for this location.
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Affiliation(s)
- S Culleton
- Department of Paediatric Neuroradiology, Great Ormond Street Hospital, London, UK.
| | - B McKenna
- Department of Paediatric Neuroradiology, Great Ormond Street Hospital, London, UK
| | - L Dixon
- Department of Paediatric Neuroradiology, Great Ormond Street Hospital, London, UK
| | - A Taranath
- Department of Paediatric Neuroradiology, Women and Children's Hospital, Adelaide, Australia
| | - O Oztekin
- Department of Paediatric Neuroradiology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - C Prasad
- Department of Paediatric Neuroradiology, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - A Siddiqui
- Department of Paediatric Neuroradiology, Evelina London Children's Hospital, London, UK
| | - K Mankad
- Department of Paediatric Neuroradiology, Great Ormond Street Hospital, London, UK
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20
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Vecchiato K, Egloff A, Carney O, Siddiqui A, Hughes E, Dillon L, Colford K, Green E, Texeira RPAG, Price AN, Ferrazzi G, Hajnal JV, Carmichael DW, Cordero-Grande L, O'Muircheartaigh J. Evaluation of DISORDER: Retrospective Image Motion Correction for Volumetric Brain MRI in a Pediatric Setting. AJNR Am J Neuroradiol 2021; 42:774-781. [PMID: 33602745 DOI: 10.3174/ajnr.a7001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/02/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND PURPOSE Head motion causes image degradation in brain MR imaging examinations, negatively impacting image quality, especially in pediatric populations. Here, we used a retrospective motion correction technique in children and assessed image quality improvement for 3D MR imaging acquisitions. MATERIALS AND METHODS We prospectively acquired brain MR imaging at 3T using 3D sequences, T1-weighted MPRAGE, T2-weighted TSE, and FLAIR in 32 unsedated children, including 7 with epilepsy (age range, 2-18 years). We implemented a novel motion correction technique through a modification of k-space data acquisition: Distributed and Incoherent Sample Orders for Reconstruction Deblurring by using Encoding Redundancy (DISORDER). For each participant and technique, we obtained 3 reconstructions as acquired (Aq), after DISORDER motion correction (Di), and Di with additional outlier rejection (DiOut). We analyzed 288 images quantitatively, measuring 2 objective no-reference image quality metrics: gradient entropy (GE) and MPRAGE white matter (WM) homogeneity. As a qualitative metric, we presented blinded and randomized images to 2 expert neuroradiologists who scored them for clinical readability. RESULTS Both image quality metrics improved after motion correction for all modalities, and improvement correlated with the amount of intrascan motion. Neuroradiologists also considered the motion corrected images as of higher quality (Wilcoxon z = -3.164 for MPRAGE; z = -2.066 for TSE; z = -2.645 for FLAIR; all P < .05). CONCLUSIONS Retrospective image motion correction with DISORDER increased image quality both from an objective and qualitative perspective. In 75% of sessions, at least 1 sequence was improved by this approach, indicating the benefit of this technique in unsedated children for both clinical and research environments.
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Affiliation(s)
- K Vecchiato
- From the Department for Forensic and Neurodevelopmental Sciences (K.V., J.O.), Institute of Psychiatry, Psychology and Neuroscience .,Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - A Egloff
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - O Carney
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences.,Department of Radiology (O.C.), Great Ormond Street Hospital for Children, NHS Foundation Trust London, United Kingdom
| | - A Siddiqui
- Department of Radiology (A.S.), Guy's and Saint Thomas' Hospitals NHS Trust, London, United Kingdom
| | - E Hughes
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - L Dillon
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - K Colford
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - E Green
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - R P A G Texeira
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - A N Price
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - G Ferrazzi
- IRCCS San Camillo Hospital (G.F.), Venice, Italy
| | - J V Hajnal
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences
| | - D W Carmichael
- EPSRC/Wellcome Centre for Medical Engineering, Biomedical Engineering (D.W.C.)
| | - L Cordero-Grande
- Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences .,Biomedical Image Technologies, ETSI Telecomunicación (L.C.-G.), Universidad Politécnica de Madrid & CIBER-BBN, Madrid, Spain
| | - J O'Muircheartaigh
- From the Department for Forensic and Neurodevelopmental Sciences (K.V., J.O.), Institute of Psychiatry, Psychology and Neuroscience.,Centre for the Developing Brain (K.V., A.E., O.C., E.H., L.D., K.C., E.G., R.P.A.G.T., A.N.P., J.V.H., L.C.-G., J.O.), School of Biomedical Engineering and Imaging Sciences.,MRC Centre for Neurodevelopmental Disorders (J.O.), King's College London, London, United Kingdom
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Tabernero J, Hoff P, Shen L, Ohtsu A, Shah M, Siddiqui A, Heeson S, Wu H, Restuccia E, Kang YK. 1423MO End-of-study analysis from JACOB: A phase III study of pertuzumab (P) + trastuzumab (H) and chemotherapy (CT) in HER2-positive metastatic gastric or gastro-esophageal junction cancer (mGC/GEJC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1929] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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McLean KA, Ahmed WUR, Akhbari M, Claireaux HA, English C, Frost J, Henshall DE, Khan M, Kwek I, Nicola M, Rehman S, Varghese S, Drake TM, Bell S, Nepogodiev D, McLean KA, Drake TM, Glasbey JC, Borakati A, Drake TM, Kamarajah S, McLean KA, Bath MF, Claireaux HA, Gundogan B, Mohan M, Deekonda P, Kong C, Joyce H, Mcnamee L, Woin E, Burke J, Khatri C, Fitzgerald JE, Harrison EM, Bhangu A, Nepogodiev D, Arulkumaran N, Bell S, Duthie F, Hughes J, Pinkney TD, Prowle J, Richards T, Thomas M, Dynes K, Patel M, Patel P, Wigley C, Suresh R, Shaw A, Klimach S, Jull P, Evans D, Preece R, Ibrahim I, Manikavasagar V, Smith R, Brown FS, Deekonda P, Teo R, Sim DPY, Borakati A, Logan AE, Barai I, Amin H, Suresh S, Sethi R, Bolton W, Corbridge O, Horne L, Attalla M, Morley R, Robinson C, Hoskins T, McAllister R, Lee S, Dennis Y, Nixon G, Heywood E, Wilson H, Ng L, Samaraweera S, Mills A, Doherty C, Woin E, Belchos J, Phan V, Chouari T, Gardner T, Goergen N, Hayes JDB, MacLeod CS, McCormack R, McKinley A, 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Livesey C, McLachlan G, Mohammad M, Pranesh N, Richards C, Ross F, Sajid M, Brooke M, Francombe J, Gresly J, Hutchinson S, Kerrigan K, Matthews E, Nur S, Parsons L, Sandhu A, Vyas M, White F, Zulkifli A, Zuzarte L, Al-Mousawi A, Arya J, Azam S, Yahaya AA, Gill K, Hallan R, Hathaway C, Leptidis I, McDonagh L, Mitrasinovic S, Mushtaq N, Pang N, Peiris GB, Rinkoff S, Chan L, Christopher E, Farhan-Alanie MMH, Gonzalez-Ciscar A, Graham CJ, Lim H, McLean KA, Paterson HM, Rogers A, Roy C, Rutherford D, Smith F, Zubikarai G, Al-Khudairi R, Bamford M, Chang M, Cheng J, Hedley C, Joseph R, Mitchell B, Perera S, Rothwell L, Siddiqui A, Smith J, Taylor K, Wright OW, Baryan HK, Boyd G, Conchie H, Cox L, Davies J, Gardner S, Hill N, Krishna K, Lakin F, Scotcher S, Alberts J, Asad M, Barraclough J, Campbell A, Marshall D, Wakeford W, Cronbach P, D'Souza F, Gammeri E, Houlton J, Hall M, Kethees A, Patel R, Perera M, Prowle J, Shaid M, Webb E, Beattie S, Chadwick M, El-Taji O, Haddad S, Mann M, Patel M, Popat K, Rimmer L, Riyat H, Smith H, Anandarajah C, Cipparrone M, Desai K, Gao C, Goh ET, Howlader M, Jeffreys N, Karmarkar A, Mathew G, Mukhtar H, Ozcan E, Renukanthan A, Sarens N, Sinha C, Woolley A, Bogle R, Komolafe O, Loo F, Waugh D, Zeng R, Crewe A, Mathias J, Mills A, Owen A, Prior A, Saunders I, Baker A, Crilly L, McKeon J, Ubhi HK, Adeogun A, Carr R, Davison C, Devalia S, Hayat A, Karsan RB, Osborne C, Scott K, Weegenaar C, Wijeyaratne M, Babatunde F, Barnor-Ahiaku E, Beattie G, Chitsabesan P, Dixon O, Hall N, Ilenkovan N, Mackrell T, Nithianandasivam N, Orr J, Palazzo F, Saad M, Sandland-Taylor L, Sherlock J, Ashdown T, Chandler S, Garsaa T, Lloyd J, Loh SY, Ng S, Perkins C, Powell-Chandler A, Smith F, Underhill R. Perioperative intravenous contrast administration and the incidence of acute kidney injury after major gastrointestinal surgery: prospective, multicentre cohort study. Br J Surg 2020; 107:1023-1032. [PMID: 32026470 DOI: 10.1002/bjs.11453] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/21/2019] [Accepted: 11/08/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND This study aimed to determine the impact of preoperative exposure to intravenous contrast for CT and the risk of developing postoperative acute kidney injury (AKI) in patients undergoing major gastrointestinal surgery. METHODS This prospective, multicentre cohort study included adults undergoing gastrointestinal resection, stoma reversal or liver resection. Both elective and emergency procedures were included. Preoperative exposure to intravenous contrast was defined as exposure to contrast administered for the purposes of CT up to 7 days before surgery. The primary endpoint was the rate of AKI within 7 days. Propensity score-matched models were adjusted for patient, disease and operative variables. In a sensitivity analysis, a propensity score-matched model explored the association between preoperative exposure to contrast and AKI in the first 48 h after surgery. RESULTS A total of 5378 patients were included across 173 centres. Overall, 1249 patients (23·2 per cent) received intravenous contrast. The overall rate of AKI within 7 days of surgery was 13·4 per cent (718 of 5378). In the propensity score-matched model, preoperative exposure to contrast was not associated with AKI within 7 days (odds ratio (OR) 0·95, 95 per cent c.i. 0·73 to 1·21; P = 0·669). The sensitivity analysis showed no association between preoperative contrast administration and AKI within 48 h after operation (OR 1·09, 0·84 to 1·41; P = 0·498). CONCLUSION There was no association between preoperative intravenous contrast administered for CT up to 7 days before surgery and postoperative AKI. Risk of contrast-induced nephropathy should not be used as a reason to avoid contrast-enhanced CT.
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Tsivgoulis G, Goyal N, Katsanos AH, Malhotra K, Ishfaq MF, Pandhi A, Frohler MT, Spiotta AM, Anadani M, Psychogios M, Maus V, Siddiqui A, Waqas M, Schellinger PD, Groen M, Krogias C, Richter D, Saqqur M, Garcia-Bermejo P, Mokin M, Leker R, Cohen JE, Magoufis G, Psychogios K, Lioutas VA, Van Nostrand M, Sharma VK, Paciaroni M, Rentzos A, Shoirah H, Mocco J, Nickele C, Mitsias PD, Inoa V, Hoit D, Elijovich L, Arthur AS, Alexandrov AV. Intravenous thrombolysis for large vessel or distal occlusions presenting with mild stroke severity. Eur J Neurol 2020; 27:1039-1047. [PMID: 32149450 DOI: 10.1111/ene.14199] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 12/27/2019] [Accepted: 02/29/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE We investigated the effectiveness of intravenous thrombolysis (IVT) in acute ischaemic stroke (AIS) patients with large vessel or distal occlusions and mild neurological deficits, defined as National Institutes of Health Stroke Scale scores < 6 points. METHODS The primary efficacy outcome was 3-month functional independence (FI) [modified Rankin Scale (mRS) scores 0-2] that was compared between patients with and without IVT treatment. Other efficacy outcomes of interest included 3-month favorable functional outcome (mRS scores 0-1) and mRS score distribution at discharge and at 3 months. The safety outcomes comprised all-cause 3-month mortality, symptomatic intracranial hemorrhage (ICH), asymptomatic ICH and severe systemic bleeding. RESULTS We evaluated 336 AIS patients with large vessel or distal occlusions and mild stroke severity (mean age 63 ± 15 years, 45% women). Patients treated with IVT (n = 162) had higher FI (85.6% vs. 74.8%, P = 0.027) with lower mRS scores at hospital discharge (P = 0.034) compared with the remaining patients. No differences were detected in any of the safety outcomes including symptomatic ICH, asymptomatic ICH, severe systemic bleeding and 3-month mortality. IVT was associated with higher likelihood of 3-month FI [odds ratio (OR), 2.19; 95% confidence intervals (CI), 1.09-4.42], 3-month favorable functional outcome (OR, 1.99; 95% CI, 1.10-3.57), functional improvement at discharge [common OR (per 1-point decrease in mRS score), 2.94; 95% CI, 1.67-5.26)] and at 3 months (common OR, 1.72; 95% CI, 1.06-2.86) on multivariable logistic regression models adjusting for potential confounders, including mechanical thrombectomy. CONCLUSIONS Intravenous thrombolysis is independently associated with higher odds of improved discharge and 3-month functional outcomes in AIS patients with large vessel or distal occlusions and mild stroke severity. IVT appears not to increase the risk of systemic or symptomatic intracranial bleeding.
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Affiliation(s)
- G Tsivgoulis
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA.,Second Department of Neurology, National and Kapodistrian University of Athens, 'Attikon' University Hospital, Athens, Greece
| | - N Goyal
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Neurosurgery, University of Tennessee Health Science Center, Semmes-Murphey Neurologic and Spine Clinic, Memphis, TN, USA
| | - A H Katsanos
- Second Department of Neurology, National and Kapodistrian University of Athens, 'Attikon' University Hospital, Athens, Greece
| | - K Malhotra
- Charleston Division, Department of Neurology, West Virginia University, Charleston, WV, USA
| | - M F Ishfaq
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - A Pandhi
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - M T Frohler
- Cerebrovascular Program, Vanderbilt University, Nashville, TN, USA
| | - A M Spiotta
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
| | - M Anadani
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
| | - M Psychogios
- Department of Neuroradiology, University Medical Center Göttingen, Göttingen, Germany
| | - V Maus
- Department of Neuroradiology, University Medical Center Göttingen, Göttingen, Germany
| | - A Siddiqui
- Departments of Neurosurgery and Radiology, University at Buffalo, Buffalo, NY, USA
| | - M Waqas
- Departments of Neurosurgery and Radiology, University at Buffalo, Buffalo, NY, USA
| | - P D Schellinger
- Department of Neurology and Neurogeriatry, Johannes Wesling Medical Center Minden, University Clinic RUB, Minden, Germany
| | - M Groen
- Department of Neurology and Neurogeriatry, Johannes Wesling Medical Center Minden, University Clinic RUB, Minden, Germany
| | - C Krogias
- Department of Neurology, St Josef-Hospital, Ruhr University of Bochum, Bochum, Germany
| | - D Richter
- Department of Neurology, St Josef-Hospital, Ruhr University of Bochum, Bochum, Germany
| | - M Saqqur
- Division of Neurology, Department of Medicine, University of Alberta, Edmonton, AB, Canada.,Department of Neurology, Hamad General Hospital, Doha, Qatar
| | - P Garcia-Bermejo
- Division of Neurology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - M Mokin
- Department of Neurosurgery, University of South Florida, Tampa, FL, USA
| | - R Leker
- Department of Neurology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - J E Cohen
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - G Magoufis
- Acute Stroke Unit, Metropolitan Hospital, Piraeus, Greece
| | - K Psychogios
- Acute Stroke Unit, Metropolitan Hospital, Piraeus, Greece
| | - V A Lioutas
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - M Van Nostrand
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - V K Sharma
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Neurology, National University Hospital, Singapore, Singapore
| | - M Paciaroni
- Stroke Unit, Divisione di Medicina Cardiovascolare, Università di Perugia, Perugia, Italy
| | - A Rentzos
- Department of Interventional and Diagnostic Neuroradiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - H Shoirah
- Department of Neurosurgery, Mount Sinai Medical Center, New York, NY, USA
| | - J Mocco
- Department of Neurosurgery, Mount Sinai Medical Center, New York, NY, USA
| | - C Nickele
- Department of Neurosurgery, University of Tennessee Health Science Center, Semmes-Murphey Neurologic and Spine Clinic, Memphis, TN, USA
| | - P D Mitsias
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA.,Department of Neurology, School of Medicine, University of Crete, Herakleion, Greece
| | - V Inoa
- Department of Neurosurgery, University of Tennessee Health Science Center, Semmes-Murphey Neurologic and Spine Clinic, Memphis, TN, USA
| | - D Hoit
- Department of Neurosurgery, University of Tennessee Health Science Center, Semmes-Murphey Neurologic and Spine Clinic, Memphis, TN, USA
| | - L Elijovich
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA.,Department of Neurosurgery, University of Tennessee Health Science Center, Semmes-Murphey Neurologic and Spine Clinic, Memphis, TN, USA
| | - A S Arthur
- Department of Neurosurgery, University of Tennessee Health Science Center, Semmes-Murphey Neurologic and Spine Clinic, Memphis, TN, USA
| | - A V Alexandrov
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA
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Siddiqui A, Deneux-Tharaux C, Luton D, Schmitz T, Mandelbrot L, Estellat C, Howell EA, Khoshnood B, Bertille N, Azria E. Maternal obesity and severe preeclampsia among immigrant women: a mediation analysis. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz187.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Severe preeclampsia is known to be associated with both maternal place of birth and obesity. However, the role of prepregnancy obesity has not been well elucidated on the causal pathway between maternal origin and severe preeclampsia. We aimed to test for and quantify a mediation effect of obesity in this association.
Methods
A secondary analysis of the PreCARE prospective French cohort of pregnant women (n = 9,579). Adjusted path analysis logistic regression models tested for a mediation effect of obesity in the association between maternal place of birth and severe preeclampsia. Adjusted odds ratios and 95% confidence intervals for the total exposure-outcome association and for the direct and indirect/obesity-mediated components were calculated in addition to an estimate of the indirect/obesity-mediated effect.
Results
95 (0.99%) women developed severe preeclampsia: 47.6% were non-European immigrants, 16.3% were born in Sub-Saharan Africa, and 12.6% were obese. Obesity was both associated with Sub-Saharan African place of birth and severe preeclampsia. Women from Sub-Saharan Africa had an increased risk of severe preeclampsia compared to European-born mothers (aOR 2.53, 95% CI 1.39-4.58). The obesity-mediated effect of the association was 18% (aOR 1.18, 95%CI 1.03-1.35).
Conclusions
Sub-Saharan African immigrant women have a two-fold higher risk of developing severe preeclampsia as compared to European-born women, one-fifth of which is mediated by prepregnancy obesity. Our results provide estimates of the benefit of decreasing obesity among at-risk women.
Key messages
Obesity, a modifiable risk factor, is a target for interventions to prevent severe preeclampsia among immigrant women from Sub-Saharan Africa. Future investigations should focus on better elucidating the role of other modifiable mediators such as interaction with the health care system and quality of prenatal care.
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Affiliation(s)
- A Siddiqui
- UMR 1153, INSERM-epope, Paris, France
- Family Medicine and Community Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - D Luton
- Obstetrics and Gynecology, Beaujon-Bichat Hospital, University Hospital Department (DHU) Risks in Pregnancy, Paris Diderot University, Paris, France
| | - T Schmitz
- Obstetrics and Gynecology, Robert Debré Hospital, Paris Diderot University, Paris, France
| | - L Mandelbrot
- Obstetrics and Gynecology, Louis Mourier Hospital, University Hospital Department (DHU) Risks in Pregnancy, Paris Diderot University, Colombes, France
| | - C Estellat
- Biostatistics, Public Health and Medical Information, Clinical Research Unit, Pharmacoepidemiology Center (Céphépi), Sorbonne University; INSERM UMR-S 1136, Paris, France
| | - E A Howell
- Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Obstetrics, Gynecology, and Reproductive Science, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Blavatnik Family Women’s Health Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | | | - E Azria
- UMR 1153, INSERM-epope, Paris, France
- Maternity Unit, Notre Dame de Bon Secours -Paris Saint Joseph Hospital, University Hospital Department (DHU) Risks in Pregnancy, Paris Descartes University, Paris, France
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Felip E, Brunsvig P, Helland Å, Viñolas N, Aix S, Carcereny E, Gomez MD, Perez JT, Arriola E, Campelo RG, Spicer J, Thompson J, Granados AO, Holt R, Smethurst D, Lorens J, Shoaib M, Siddiqui A, Schoelermann J, Lorens K, Schmidt E, Chisamore M, Krebs M. MA03.06 Efficacy Results of Selective AXL Inhibitor Bemcentinib with Pembrolizumab Following Chemotherapy in Patients with NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.515] [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: 10/25/2022]
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26
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Trigo Perez J, Felip E, Brunsvig P, Helland A, Viñolas N, Ponce Aix S, Carcereny Costa E, Domine Gomez M, Arriola E, Garcia Campelo R, Spicer J, Thompson J, Ortega Granados A, Holt R, Lorens J, Shoaib M, Siddiqui A, Schmidt E, Chisamore M, Krebs M. Efficacy results of selective AXL inhibitor bemcentinib with pembrolizumab following chemo in patients with NSCLC. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Krebs M, Brunsvig P, Helland Å, Viñolas N, Aix S, Carcereny E, Gomez MD, Perez JT, Arriola E, Campelo RG, Spicer J, Thompson J, Granados AO, Holt R, Smethurst D, Lorens J, Shoaib M, Siddiqui A, Schoelermann J, Lorens K, Schmidt E, Chisamore M, Felip E. P1.01-72 A Phase II Study of Selective AXL Inhibitor Bemcentinib and Pembrolizumab in Patients with NSCLC Refractory to Anti-PD(L)1. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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28
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Ahmad Z, Rokadiya S, Borland F, Mooney E, Mason R, Siddiqui A. Management of condylar fractures – are we compliant with sorg standards as a nation? Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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Pencharz D, Dunn J, Connor S, Siddiqui A, Sriskandan N, Thavaraj S, Jeannon JP, Oakley R, Lei M, Guerrero-Urbano T, Cook GJ, Szyszko TA. Palatine tonsil SUVmax on FDG PET-CT as a discriminator between benign and malignant tonsils in patients with and without head and neck squamous cell carcinoma of unknown primary. Clin Radiol 2019; 74:165.e17-165.e23. [PMID: 30454841 DOI: 10.1016/j.crad.2018.10.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/16/2018] [Indexed: 11/22/2022]
Abstract
AIM To analyse the maximum standardised uptake value (SUVmax) ratio between tonsils in patients with and without tonsillar carcinoma to determine useful diagnostic thresholds. MATERIALS AND METHODS Positron-emission tomography (PET)/computed tomography (CT) examinations of patients with suspected head and neck squamous cell carcinoma (SCC) and controls from April 2013 to September 2016 were reviewed retrospectively. Tonsillar SUVmax ratios (ipsilateral/contralateral for malignant tonsils, maximum/minimum for patients without [controls]) were calculated and used to construct a receiver operating characteristic (ROC) curve. RESULTS Twenty-five patients had tonsillar carcinoma (mean SUVmax ratio of 2, range 0.89-5.4) and 86 patients acted as controls (mean SUVmax ratio of 1.1, range 1-1.5). Using the ROC, the most accurate SUVmax ratio for identifying malignancy was >1.2 (77% sensitivity, 86% specificity). A potentially more clinically useful SUVmax ratio is ≥1.6 with 62% sensitivity and 100% specificity. CONCLUSION An SUVmax ratio between tonsils of ≥1.6 is highly suspicious for SCC and could be used to direct site of biopsy. Some malignant tonsils had normal FDG uptake; therefore, PET/CT should not be used to exclude tonsillar cancer. Minor asymmetrical uptake is frequently seen in non-malignant tonsils and does not necessarily require further investigation. Due to the single centre nature of this study and the recognised variation in SUV measurements between PET scans, other centres may need to develop their own cut-offs.
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Affiliation(s)
- D Pencharz
- Department of Nuclear Medicine, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK.
| | - J Dunn
- King's College London and St Guy's and St Thomas' PET Centre, London, UK
| | - S Connor
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A Siddiqui
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - N Sriskandan
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - S Thavaraj
- Head and Neck Pathology, King's College, London, UK
| | - J-P Jeannon
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - R Oakley
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - M Lei
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - G J Cook
- King's College London and St Guy's and St Thomas' PET Centre, London, UK
| | - T A Szyszko
- King's College London and St Guy's and St Thomas' PET Centre, London, UK
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30
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Riaz O, Nisar S, Phillips H, Siddiqui A. Quantifying the problem of kneeling after a two incision bone tendon bone arthroscopic anterior cruciate ligament reconstruction. Muscles Ligaments Tendons J 2019. [DOI: 10.32098/mltj.03.2015.07] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- O. Riaz
- Department of Orthopaedics and Trauma Surgery, Calderdale and Huddersfield Foundation NHS Trust, Huddersfield, UK
| | - S. Nisar
- Department of Orthopaedics and Trauma Surgery, Calderdale and Huddersfield Foundation NHS Trust, Huddersfield, UK
| | - H. Phillips
- Department of Orthopaedics and Trauma Surgery, Calderdale and Huddersfield Foundation NHS Trust, Huddersfield, UK
| | - A. Siddiqui
- Department of Orthopaedics and Trauma Surgery, Calderdale and Huddersfield Foundation NHS Trust, Huddersfield, UK
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Abstract
BACKGROUND The Motec cementless modular metal-on-metal ball-and-socket wrist arthroplasty is an implant with promising intermediate results. An alternative to primary wrist fusion, total wrist arthroplasty is an option for active patients, who wish to retain their wrist function. It is indicated in cases of degenerative osteoarthritis, post-traumatic arthritis and rheumatoid (inflammatory) arthritis. METHODS A prospective review of patient demographics, pre and post-operative Disabilities of the Arm Shoulder and Hand (DASH), MAYO scores, range of movements and grip strengths. All complications in follow up were recorded across the 4 year period. RESULTS 25 implants on 23 patients over 5.5 years, mean age 61; 8 females and 15 male. 10 patients with SLAC, 3 SNAC, 5 inflammatory and 7 patients with generalized osteoarthritis. The patients showed significant improvements of MAYO and DASH scores post-operatively, as well as the flexion/extension arc and grip strengths. There was just one case of implant loosening- the radial screw after a wound infection, which was revised with a longer screw. Two implants were converted to Motec fusion due to pain. One implant was dislocated and relocated. The remaining patients have had good wrist function. Only 6 patients were unable to return to work. CONCLUSIONS Similar to published studies, this series shows the Motec implant to be a good motion preserving alternative to total wrist fusion.
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Affiliation(s)
- L Giwa
- * Department of Orthopaedics, Southend University Hospital, Southend, UK
| | - A Siddiqui
- † Department of Plastic & Reconstructive Surgery, Countess of Chester Hospital, Chester, UK
| | - G Packer
- * Department of Orthopaedics, Southend University Hospital, Southend, UK
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Román LS, Menon BK, Blasco J, Hernández-Pérez M, Dávalos A, Majoie CBLM, Campbell BCV, Guillemin F, Lingsma H, Anxionnat R, Epstein J, Saver JL, Marquering H, Wong JH, Lopes D, Reimann G, Desal H, Dippel DWJ, Coutts S, du Mesnil de Rochemont R, Yavagal D, Ferre JC, Roos YBWEM, Liebeskind DS, Lenthall R, Molina C, Al Ajlan FS, Reddy V, Dowlatshahi D, Sourour NA, Oppenheim C, Mitha AP, Davis SM, Weimar C, van Oostenbrugge RJ, Cobo E, Kleinig TJ, Donnan GA, van der Lugt A, Demchuk AM, Berkhemer OA, Boers AMM, Ford GA, Muir KW, Brown BS, Jovin T, van Zwam WH, Mitchell PJ, Hill MD, White P, Bracard S, Goyal M, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S, Wakhloo A, Moonis M, Henniger N, Goddeau R, van den Berg R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Tunguturi A, Onteddu S, Carandang R, Howk M, Koudstaal PJ, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Meler P, Huerga E, Gelabert S, Coscojuela P, van Zwam WH, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Rovira A, Molina CA, Millán M, Muñoz L, Roos YB, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, García Bermejo P, Remollo S, Castaño C, García-Sort R, van der Lugt A, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Dávalos A, Chamorro A, Urra X, Obach V, van Oostenbrugge RJ, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Ariño H, Aceituno A, Rudilosso S, Renu A, Majoie CB, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Quesada H, Rubio F, Cano L, Lara B, Dippel DW, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Brown MM, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Liebig T, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Stijnen T, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Mutlu G, Rosso C, Szatmary Z, Yger M, Andersson T, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Leautaud A, Renkes C, Serre I, Desal H, Mattle H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Wahlgren N, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, van der Heijden E, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Birchenall J, Bodiguel E, Calvet D, Domigo V, Ghannouti N, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Trystram D, Turc G, Berge J, Sibon I, Fleitour N, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Hooijenga I, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, Bejot Y, Chavent A, Gentil A, Kazemi A, Puppels C, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Pellikaan W, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Geerling A, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Lindl-Velema A, Salaris Silvio F, Tilikete C, Blanc R, Obadia M, Bartolini MB, Gueguen A, Piotin M, Pistocchi S, Redjem H, Drouineau J, van Vemde G, Neau JP, Godeneche G, Lamy M, Marsac E, Velasco S, Clavelou P, Chabert E, Bourgois N, Cornut-Chauvinc C, Ferrier A, de Ridder A, Gabrillargues J, Jean B, Marques AR, Vitello N, Detante O, Barbieux M, Boubagra K, Favre Wiki I, Garambois K, Tahon F, Greebe P, Ashok V, Voguet C, Coskun O, Guedin P, Rodesch G, Lapergue B, Bourdain F, Evrard S, Graveleau P, Decroix JP, de Bont-Stikkelbroeck J, Wang A, Sellal F, Ahle G, Carelli G, Dugay MH, Gaultier C, Lebedinsky AP, Lita L, Musacchio RM, Renglewicz-Destuynder C, de Meris J, Tournade A, Vuillemet F, Montoro FM, Mounayer C, Faugeras F, Gimenez L, Labach C, Lautrette G, Denier C, Saliou G, Janssen K, Chassin O, Dussaule C, Melki E, Ozanne A, Puccinelli F, Sachet M, Sarov M, Bonneville JF, Moulin T, Biondi A, Struijk W, De Bustos Medeiros E, Vuillier F, Courtheoux P, Viader F, Apoil-Brissard M, Bataille M, Bonnet AL, Cogez J, Kazemi A, Touze E, Licher S, Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Deplanque D, Girot M, Henon H, Kalsoum E, Boodt N, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Machi P, Mourand I, Riquelme C, Bounolleau P, Ros A, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Venema E, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Slokkers I, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Freeman J, Ford I, Markus H, Wardlaw J, Ganpat RJ, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, Perry R, Dixit A, Cloud G, Clifton A, Mulder M, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Kandasamy N, Goddard T, Bamford J, Subramanian G, Saiedie N, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Heshmatollah A, Harrison L, Keshvara R, Cunningham J, Schipperen S, Vinken S, van Boxtel T, Koets J, Boers M, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez-Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D. Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. Lancet Neurol 2018; 17:895-904. [DOI: 10.1016/s1474-4422(18)30242-4] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022]
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Singh A, Pinto L, Martin C, Rutherford N, Ragunathan A, Upadhyay U, Kapoor P, McRae M, Siddiqui A, Cantelmi D, Heyland A, Wray G, Stone J. Rudiment resorption as a response to starvation during larval development in the sea urchin Strongylocentrotus droebachiensis. CAN J ZOOL 2018. [DOI: 10.1139/cjz-2017-0261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phenotypic flexibility (reversible phenotypic change) enables organisms to couple internal, ontogenetic responses with external, environmental cues. Phenotypic flexibility also provides organisms with the capacity to buffer stereotypical internal, developmental processes from unpredictable external, ecological events. Echinoids exhibit dramatic phenotypic flexibility in response to variation in exogenous nutrient supplies. The extent to which echinoids display this flexibility has been explored incompletely and research hitherto has been conducted predominantly on larval structures and morphologies. We investigated experimentally the extent to which the primordial juvenile, the developing rudiment, can exhibit the first phase in phenotypic flexibility among individuals. We report for the first time on rudiment regression and complete resorption as a response to starvation during larval development in the sea urchin Strongylocentrotus droebachiensis (O.F. Müller, 1776) and identify a developmental “window of opportunity” within which this can occur. Based on our observations and previous suggestions, we speculate that sea urchin rudiments might provide means of buffering development during unfavorable conditions.
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Affiliation(s)
- A. Singh
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - L. Pinto
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - C. Martin
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - N. Rutherford
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - A. Ragunathan
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - U. Upadhyay
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - P. Kapoor
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - M. McRae
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - A. Siddiqui
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - D. Cantelmi
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - A. Heyland
- Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - G. Wray
- State University of New York, Stony Brook, NY 11794, USA
| | - J.R. Stone
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
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Ceppi P, Siddiqui A, Gollavilli P, Pluim D, Saatci O, Annaratone L, Asangani I, Schellens J, Marchio C, Sahin O. SPOT-003 Thymidylate synthase maintains the undifferentiated state of aggressive breast cancers. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.37] [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: 11/03/2022] Open
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Podgorsak AR, Venkataraman AC, Nagesh SVS, Bednarek DR, Rudin S, Siddiqui A, Ionita CN. Use of material decomposition in the context of neurovascular intervention using standard flat panel and a high-resolution CMOS detector. Proc SPIE Int Soc Opt Eng 2018; 10578:105780L. [PMID: 29899592 PMCID: PMC5994751 DOI: 10.1117/12.2292564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The imaging of endovascular devices during neurovascular procedures such as the coiling of aneurysms guided with CBCT imaging may be challenging due to the presence of highly attenuating materials such as platinum in the coil and stent marker, nickel-titanium in the stent, iodine in the contrast agent, and tantalum in the embolization agent. The use of dual-energy imaging followed by a basis material decomposition image processing-scheme may improve the feature separation and recognition. Two sets of testing were performed to validate this concept. The first trial was the acquisition of dual-energy micro-CBCT data of a 3D-printed simple aneurysm model using a 49.5 μm pixel size CMOS detector (Teledyne DALSA, Waterloo, ON.). Two sets of projection data were acquired using beam energies of 35 kVp and 70 kVp. Axial slices were reconstructed and used to carry out the material decomposition processing. The second trial was the acquisition of dual-energy CBCT images of a RS-240T angiographic head phantom (Radiology Support Devices Inc., CA.) with an iodine vascular insert using a Toshiba Infinix BiPlane C-arm system coupled to a flat panel detector. Two sets of image data were acquired using beam energies of 80 kVp and 120 kVp. Following image reconstruction, slices of the phantom were decomposed using the same processing as previously. The resulting image data over both trials indicate that the decomposition process was successful in separating the kinds of materials commonly used during a neurovascular intervention, such as platinum, cobalt-chromium, and iodine. The normalized root mean square error metric was used to quantitatively assess this. This indicates a basis for future more clinically relevant testing of our methods.
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Affiliation(s)
- A R Podgorsak
- Department of Biomedical Engineering, University at Buffalo
- Toshiba (Canon) Stroke and Vascular Research Center, Buffalo, NY
| | - A C Venkataraman
- Toshiba (Canon) Stroke and Vascular Research Center, Buffalo, NY
| | | | - D R Bednarek
- Toshiba (Canon) Stroke and Vascular Research Center, Buffalo, NY
- Department of Radiology, University at Buffalo
| | - S Rudin
- Department of Biomedical Engineering, University at Buffalo
- Toshiba (Canon) Stroke and Vascular Research Center, Buffalo, NY
- Department of Radiology, University at Buffalo
- Department of Neurosurgery, University at Buffalo
| | - A Siddiqui
- Toshiba (Canon) Stroke and Vascular Research Center, Buffalo, NY
- Department of Neurosurgery, University at Buffalo
| | - C N Ionita
- Department of Biomedical Engineering, University at Buffalo
- Toshiba (Canon) Stroke and Vascular Research Center, Buffalo, NY
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Campbell BCV, van Zwam WH, Goyal M, Menon BK, Dippel DWJ, Demchuk AM, Bracard S, White P, Dávalos A, Majoie CBLM, van der Lugt A, Ford GA, de la Ossa NP, Kelly M, Bourcier R, Donnan GA, Roos YBWEM, Bang OY, Nogueira RG, Devlin TG, van den Berg LA, Clarençon F, Burns P, Carpenter J, Berkhemer OA, Yavagal DR, Pereira VM, Ducrocq X, Dixit A, Quesada H, Epstein J, Davis SM, Jansen O, Rubiera M, Urra X, Micard E, Lingsma HF, Naggara O, Brown S, Guillemin F, Muir KW, van Oostenbrugge RJ, Saver JL, Jovin TG, Hill MD, Mitchell PJ, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Wakhloo A, Moonis M, Henninger N, Goddeau R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Majoie CB, Tunguturi A, Onteddu S, Carandang R, Howk M, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Dippel DW, Meler P, Huerga E, Gelabert S, Coscojuela P, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Brown MM, Rovira A, Molina CA, Millán M, Muñoz L, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, Liebig T, García Bermejo P, Remollo S, Castaño C, García-Sort R, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Stijnen T, Dávalos A, Chamorro A, Urra X, Obach V, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Andersson T, Ariño H, Aceituno A, Rudilosso S, Renu A, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Mattle H, Quesada H, Rubio F, Cano L, Lara B, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Wahlgren N, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, van der Heijden E, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Ghannouti N, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Fleitour N, Mutlu G, Rosso C, Szatmary Z, Yger M, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Hooijenga I, Leautaud A, Renkes C, Serre I, Desal H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Puppels C, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Pellikaan W, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Geerling A, Birchenall J, Bodiguel E, Calvet D, Domigo V, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Lindl-Velema A, Trystram D, Turc G, Berge J, Sibon I, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, van Vemde G, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, de Ridder A, Bejot Y, Chavent A, Gentil A, Kazemi A, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Greebe P, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, de Bont-Stikkelbroeck J, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, de Meris J, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Salaris Silvio F, 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Cunningham J, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez- Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S. Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. Lancet Neurol 2018; 17:47-53. [DOI: 10.1016/s1474-4422(17)30407-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/05/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Paudel YN, Ali MR, Bawa S, Shah S, Adil M, Siddiqui A, Basheer AS, Hassan MQ, Sharma M. Evaluation of 4-methyl-2-[(2-methylbenzyl) amino]-1,3-thiazole-5-carboxylic acid against hyperglycemia, insulin sensitivity, and oxidative stress-induced inflammatory responses and β-cell damage in the pancreas of streptozotocin-induced diabetic rats. Hum Exp Toxicol 2017; 37:163-174. [PMID: 29233026 DOI: 10.1177/0960327117692133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
4-Methyl-2-[(2-methylbenzyl) amino]-1,3-thiazole-5-carboxylic acid (bioactive compound (BAC)), a novel thiazole derivative, is a xanthine oxidase inhibitor and free radical scavenging agent. Effects of BAC on hyperglycemia, insulin sensitivity, oxidative stress, and inflammatory mediators were evaluated in streptozotocin (STZ)-induced neonatal models of non-insulin-dependent diabetes mellitus (NIDDM) rats where NIDDM was induced in neonatal pups with single intraperitoneal injection of STZ (100 mg/kg). The effect of BAC (10 and 20 mg/kg, p.o.) for 3 weeks was evaluated by the determination of blood glucose, oral glucose tolerance test (OGTT), HbA1c level, insulin level, insulin sensitivity, and insulin resistance (IR). Furthermore, inflammatory mediators (tumor necrosis factor-alpha and interleukin-6) and oxidative stress were estimated in serum and pancreatic tissue, respectively. Significant alteration in the level of blood glucose, OGTT, HbA1c, insulin level, insulin sensitivity, in addition variation in the antioxidant status and inflammatory mediators, and alteration in histoarchitecture of pancreatic tissue confirmed the potential of BAC in STZ-induced neonatal models of NIDDM rats. Pretreatment with BAC restored the level of glucose by decreasing the IR and increasing the insulin sensitivity. Furthermore, BAC balanced the antioxidant status and preserved the inflammatory mediators. Histological studies of pancreatic tissues showed normal architecture after BAC administration to diabetic rats. Altogether, our results suggest that BAC successfully reduces the blood glucose level and possesses antioxidant as well as anti-inflammatory activities. This leads to decreased histological damage in diabetic pancreatic tissues, suggesting the possibility of future diabetes treatments.
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Affiliation(s)
- Y N Paudel
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - M R Ali
- 2 Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - S Bawa
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - S Shah
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - M Adil
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - A Siddiqui
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - A S Basheer
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - M Q Hassan
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
| | - M Sharma
- 1 Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India
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Campbell N, Handley T, Larkin E, Morrison J, Paley M, Siddiqui A. Compliance of CT chest surveillance following oral cancer treatment: An audit of Edinburgh OMFS practice. Br J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.bjoms.2017.08.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Varble N, Rajabzadeh-Oghaz H, Wang J, Siddiqui A, Meng H, Mowla A. Differences in Morphologic and Hemodynamic Characteristics for "PHASES-Based" Intracranial Aneurysm Locations. AJNR Am J Neuroradiol 2017; 38:2105-2110. [PMID: 28912279 DOI: 10.3174/ajnr.a5341] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/09/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Several recent prospective studies have found that unruptured intracranial aneurysms at various anatomic locations have different propensities for future rupture. This study aims to uncover the lack of understanding regarding rupture-prone characteristics, such as morphology and hemodynamic factors, associated with different intracranial aneurysm location. MATERIALS AND METHODS We investigated the characteristics of 311 unruptured aneurysms at our center. Based on the PHASES study, we separated and compared morphologic and hemodynamic characteristics among 3 aneurysm location groups: 1) internal carotid artery; 2) middle cerebral artery; and 3) anterior communicating, posterior communicating, and posterior circulation arteries. RESULTS A mixed model statistical analysis showed that size ratio, low wall shear stress area, and pressure loss coefficient were different between the intracranial aneurysm location groups. In addition, a pair-wise comparison showed that ICA aneurysms had lower size ratios, lower wall shear stress areas, and lower pressure loss coefficients compared with MCA aneurysms and compared with the group of anterior communicating, posterior communicating, and posterior circulation aneurysms. There were no statistical differences between MCA aneurysms and the group of anterior communicating, posterior communicating, and posterior circulation aneurysms for morphologic or hemodynamic characteristics. CONCLUSIONS ICA aneurysms may be subjected to less rupture-prone morphologic and hemodynamic characteristics compared with other locations, which could explain the decreased rupture propensity of intracranial aneurysms at this location.
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Affiliation(s)
- N Varble
- From the Department of Mechanical and Aerospace Engineering (N.V., H.R.-O., H.M.).,Toshiba Stroke and Vascular Research Center (N.V., H.R.-O., A.S., H.M.)
| | - H Rajabzadeh-Oghaz
- From the Department of Mechanical and Aerospace Engineering (N.V., H.R.-O., H.M.).,Toshiba Stroke and Vascular Research Center (N.V., H.R.-O., A.S., H.M.)
| | - J Wang
- Departments of Biostatistics (J.W., A.M.)
| | - A Siddiqui
- Toshiba Stroke and Vascular Research Center (N.V., H.R.-O., A.S., H.M.).,Neurosurgery (A.S., H.M.)
| | - H Meng
- From the Department of Mechanical and Aerospace Engineering (N.V., H.R.-O., H.M.).,Toshiba Stroke and Vascular Research Center (N.V., H.R.-O., A.S., H.M.).,Neurosurgery (A.S., H.M.).,Biomedical Engineering (H.M.)
| | - A Mowla
- Departments of Biostatistics (J.W., A.M.) .,Neurology (A.M.), University at Buffalo, State University of New York, Buffalo, New York
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Siddiqui A, Lehmann S, Haaksman V, Ogier J, Schellenberg C, van Loosdrecht MCM, Kruithof JC, Vrouwenvelder JS. Porosity of spacer-filled channels in spiral-wound membrane systems: Quantification methods and impact on hydraulic characterization. Water Res 2017; 119:304-311. [PMID: 28501608 DOI: 10.1016/j.watres.2017.04.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/06/2017] [Accepted: 04/10/2017] [Indexed: 06/07/2023]
Abstract
The porosity of spacer-filled feed channels influences the hydrodynamics of spiral-wound membrane systems and impacts the overall performance of the system. Therefore, an exact measurement and a detailed understanding of the impact of the feed channel porosity is required to understand and improve the hydrodynamics of spiral-wound membrane systems applied for desalination and wastewater reuse. The objectives of this study were to assess the accuracy of porosity measurement techniques for feed spacers differing in geometry and thickness and the consequences of using an inaccurate method on hydrodynamic predictions, which may affect permeate production. Six techniques were applied to measure the porosity namely, three volumetric techniques based on spacer strand count together with a cuboidal (SC), cylindrical (VCC) and ellipsoidal volume calculation (VCE) and three independent techniques based on volume displacement (VD), weight and density (WD) and computed tomography (CT) scanning. The CT method was introduced as an alternative for the other five already existing and applied methods in practice. Six feed spacers used for the porosity measurement differed in filament thickness, angle between the filaments and mesh-size. The results of the studies showed differences between the porosities, measured by the six methods. The results of the microscopic techniques SC, VCC and VCE deviated significantly from measurements by VD, WD and CT, which showed similar porosity values for all spacer types. Depending on the maximum deviation of the porosity measurement techniques from -6% to +6%, (i) the linear velocity deviations were -5.6% and +6.4% respectively and (ii) the pressure drop deviations were -31% and +43% respectively, illustrating the importance of an accurate porosity measurement. Because of the accuracy and standard deviation, the VD and WD method should be applied for the porosity determination of spacer-filled channels, while the CT method is recommended for numerical modelling purposes. The porosity has a linear relationship with the flow velocity and a superlinear effect on the pressure drop. Accurate porosity data are essential to evaluate feed spacer performance in spiral-wound membrane systems. Porosity of spacer-filled feed channels has a strong impact on membrane performance and biofouling impact.
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Affiliation(s)
- A Siddiqui
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological and Environmental Science and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia.
| | - S Lehmann
- LANXESS BU Liquid Purification Technologies, R&D Membranes, 06803 Bitterfeld-Wolfen, Germany.
| | - V Haaksman
- Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - J Ogier
- LANXESS BU Liquid Purification Technologies, R&D Membranes, 06803 Bitterfeld-Wolfen, Germany.
| | - C Schellenberg
- LANXESS BU Liquid Purification Technologies, R&D Membranes, 06803 Bitterfeld-Wolfen, Germany.
| | - M C M van Loosdrecht
- Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - J C Kruithof
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands.
| | - J S Vrouwenvelder
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological and Environmental Science and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia; Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands.
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Sharmin N, Malik H, Siddiqui A, Chowdhury H, Kanagenti S, Graham A, Wright C, Morrell N, Trembath RC, Nasim MT. 202 Therapeutic resolution of pulmonary arterial hypertension (pah) by novel small molecule natural products. Heart 2017. [DOI: 10.1136/heartjnl-2017-311726.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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42
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Brinjikji W, Cloft H, Cekirge S, Fiorella D, Hanel RA, Jabbour P, Lylyk P, McDougall C, Moran C, Siddiqui A, Szikora I, Kallmes DF. Lack of Association between Statin Use and Angiographic and Clinical Outcomes after Pipeline Embolization for Intracranial Aneurysms. AJNR Am J Neuroradiol 2017; 38:753-758. [PMID: 28154128 DOI: 10.3174/ajnr.a5078] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 11/22/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Use of statin medications has been demonstrated to improve clinical and angiographic outcomes in patients receiving endovascular stent placement for coronary, peripheral, carotid, and intracranial stenoses. We studied the impact of statin use on long-term angiographic and clinical outcomes after flow-diverter treatment of intracranial aneurysms. MATERIALS AND METHODS We performed a post hoc analysis from pooled patient-level datasets from 3 Pipeline Embolization Device studies: the International Retrospective Study of the Pipeline Embolization Device, the Pipeline for Uncoilable or Failed Aneurysms Study, and the Aneurysm Study of Pipeline in an Observational Registry. We analyzed data comparing 2 subgroups: 1) patients on statin medication, and 2) patients not on statin medication at the time of the procedure and follow-up. Angiographic and clinical outcomes were compared by using the χ2 test, Fisher exact test, or Wilcoxon rank sum test. RESULTS We studied 1092 patients with 1221 aneurysms. At baseline, 226 patients were on statin medications and 866 patients were not on statin medications. The mean length of clinical and angiographic follow-up was 22.1 ± 15.1 months and 28.3 ± 23.7 months, respectively. There were no differences observed in angiographic outcomes at any time point between groups. Rates of complete occlusion were 82.8% (24/29) versus 86.4% (70/81) at 1-year (P = .759) and 93.3% (14/15) versus 95.7% (45/47) at 5-year (P = 1.000) follow-up for statin-versus-nonstatin-use groups, respectively. There were no differences in any complication rates between groups, including major morbidity and neurologic mortality (7.5% versus 7.1%, P = .77). CONCLUSIONS Our study found no association between statin use and angiographic or clinical outcomes among patients treated with the Pipeline Embolization Device.
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Affiliation(s)
- W Brinjikji
- From the Department of Radiology (W.B., H.C., D.F.K.), Mayo Clinic, Rochester, Minnesota
| | - H Cloft
- From the Department of Radiology (W.B., H.C., D.F.K.), Mayo Clinic, Rochester, Minnesota
| | - S Cekirge
- Department of Radiology (S.C.), Koru Hospital and Bayindir Hospitals, Ankara, Turkey
| | - D Fiorella
- Department of Neurosurgery (D.F.), Cerebrovascular Center, Stony Brook University Medical Center, Stony Brook, New York
| | - R A Hanel
- Stroke and Cerebrovascular Surgery (R.A.H.), Lyerly Neurosurgery/Baptist Neurological Institute, Jacksonville, Florida
| | - P Jabbour
- Department of Neurosurgery (P.J.), Thomas Jefferson University, Philadelphia, Pennsylvania
| | - P Lylyk
- Department of Neurosurgery (P.L.), Equipo de Neurocirugía Endovascular y Radiología Intervencionista de Buenos Aires-Clinica La Sagrada Familia, Buenos Aires, Argentina
| | - C McDougall
- Department of Endovascular Neurosurgery (C.McDougall), Barrow Neurological Institute, Phoenix, Arizona
| | - C Moran
- Division of Interventional Neuroradiology (C.Moran), Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri
| | - A Siddiqui
- Department of Neurosurgery (A.S.), University at Buffalo Neurosurgery, Buffalo, New York
| | - I Szikora
- Department of Neurointerventional Services (I.S.), National Institute of Clinical Neurosciences, Budapest, Hungary
| | - D F Kallmes
- From the Department of Radiology (W.B., H.C., D.F.K.), Mayo Clinic, Rochester, Minnesota
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Siddiqui A, Zahiruddin F, Kumar G, Goodarzi A, Yousseff J, Majumdar T, Sinha N, Kaleekal T. Association of Methacholine Challenge Test with Diagnosis of Bronchiolitis Obliterans Syndrome in Lung Transplant Patients. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Siddiqui A, Lehmann S, Bucs SS, Fresquet M, Fel L, Prest EIEC, Ogier J, Schellenberg C, van Loosdrecht MCM, Kruithof JC, Vrouwenvelder JS. Predicting the impact of feed spacer modification on biofouling by hydraulic characterization and biofouling studies in membrane fouling simulators. Water Res 2017; 110:281-287. [PMID: 28027527 DOI: 10.1016/j.watres.2016.12.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Revised: 12/17/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
Feed spacers are an essential part of spiral-wound reverse osmosis (RO) and nanofiltration (NF) membrane modules. Geometric modification of feed spacers is a potential option to reduce the impact of biofouling on the performance of membrane systems. The objective of this study was to evaluate the biofouling potential of two commercially available reference feed spacers and four modified feed spacers. The spacers were compared on hydraulic characterization and in biofouling studies with membrane fouling simulators (MFSs). The virgin feed spacer was characterized hydraulically by their resistance, measured in terms of feed channel pressure drop, performed by operating MFSs at varying feed water flow rates. Short-term (9 days) biofouling studies were carried out with nutrient dosage to the MFS feed water to accelerate the biofouling rate. Long-term (96 days) biofouling studies were done without nutrient dosage to the MFS feed water. Feed channel pressure drop was monitored and accumulation of active biomass was quantified by adenosine tri phosphate (ATP) determination. The six feed spacers were ranked on pressure drop (hydraulic characterization) and on biofouling impact (biofouling studies). Significantly different trends in hydraulic resistance and biofouling impact for the six feed spacers were observed. The same ranking for biofouling impact on the feed spacers was found for the (i) short-term biofouling study with nutrient dosage and the (ii) long-term biofouling study without nutrient dosage. The ranking for hydraulic resistance for six virgin feed spacers differed significantly from the ranking of the biofouling impact, indicating that hydraulic resistance of clean feed spacers does not predict the hydraulic resistance of biofouled feed spacers. Better geometric design of feed spacers can be a suitable approach to minimize impact of biofouling in spiral wound membrane systems.
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Affiliation(s)
- A Siddiqui
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological and Environmental Science and Engineering (BESE), Thuwal, 23955-6900, Saudi Arabia.
| | - S Lehmann
- LANXESS BU Liquid Purification Technologies, R&D Membranes, 06803, Bitterfeld-Wolfen, Germany.
| | - Sz S Bucs
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological and Environmental Science and Engineering (BESE), Thuwal, 23955-6900, Saudi Arabia.
| | - M Fresquet
- Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629, HZ Delft, The Netherlands.
| | - L Fel
- Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629, HZ Delft, The Netherlands.
| | - E I E C Prest
- Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629, HZ Delft, The Netherlands.
| | - J Ogier
- LANXESS BU Liquid Purification Technologies, R&D Membranes, 06803, Bitterfeld-Wolfen, Germany.
| | - C Schellenberg
- LANXESS BU Liquid Purification Technologies, R&D Membranes, 06803, Bitterfeld-Wolfen, Germany.
| | - M C M van Loosdrecht
- Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629, HZ Delft, The Netherlands.
| | - J C Kruithof
- Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, The Netherlands.
| | - J S Vrouwenvelder
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological and Environmental Science and Engineering (BESE), Thuwal, 23955-6900, Saudi Arabia; Department of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, 2629, HZ Delft, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, The Netherlands.
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Madhu SV, Aslam M, Aiman AJ, Siddiqui A, Dwivedi S. Prevalence of hypogonadism in male Type 2 diabetes mellitus patients with and without coronary artery disease. Indian J Endocrinol Metab 2017; 21:31-37. [PMID: 28217495 PMCID: PMC5240077 DOI: 10.4103/2230-8210.195999] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
AIM The present study is carried out to investigate hypogonadism using serum testosterone levels in male Type 2 diabetes mellitus (T2DM) subjects with and without coronary artery disease (CAD). SUBJECTS AND METHODS A total of 150 age and body mass index-matched male subjects in the age group of 30-70 years were recruited in three groups; Group A - subjects with normal glucose tolerance, Group B - T2DM subjects without CAD, and Group C - T2DM subjects with CAD (n = 50 each group). Subjects with CAD were diagnosed on the basis of electrocardiogram, treadmill testing, stress echocardiography, or coronary angiography. Total testosterone (TT), free testosterone (FT), bioavailable testosterone, calculated FT and glycemic parameters were measured and compared between all the three study groups. One-way ANOVA followed by post hoc Tukey's test and Pearson's coefficient of correlation tests were used for analysis. RESULTS Hypogonadism (TT <3 ng/ml) was observed in 40% (20/50) of subjects in Group C and 32% (16/50) of subjects in Group B as compared to only 14% (7/50) of subjects in Group A (Groups A vs. B; P = 0.055, Groups A vs. C; P = 0.006 and Groups B vs. C; P = 0.53). Group C subjects had significantly lower levels of TT (3.55 ± 1.46 ng/ml vs. 4.73 ± 2.17 ng/ml, P = 0.005), calculated FT (0.062 ± 0.0255 pg/ml vs. 0.0951 ± 0.0508 pg/ml, P ≤ 0.001), and bioavailable testosterone (1.48 ± 0.65 ng/ml vs. 2.18 ± 1.20 ng/ml, P ≤ 0.001) compared to control Group A subjects. There was no significant difference in any of the testosterone parameters between Groups A and B. Furthermore, an overall positive correlation was found between hypogonadism and CAD (r = 0.177, P = 0.030, n = 150). CONCLUSION We observed hypogonadism as indicated by low testosterone levels in a significant proportion of male T2DM subjects with CAD.
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Affiliation(s)
- S. V. Madhu
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - M. Aslam
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - A. J. Aiman
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - A. Siddiqui
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - S. Dwivedi
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
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Chantry A, Siddiqui A, Delnord M, Deneux-Tharaux C, Zeitlin J. Going beyond mortality: evaluating maternal and neonatal morbidity using routine data in Europe. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw168.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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47
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Breahna A, Siddiqui A, Fitzgerald O'Connor E, Iwuagwu FC. Replantation of digits: a review of predictive factors for survival. J Hand Surg Eur Vol 2016; 41:753-7. [PMID: 26763268 DOI: 10.1177/1753193415624663] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 11/03/2015] [Indexed: 02/03/2023]
Abstract
UNLABELLED The survival of 75 consecutive digital replantations carried out between 2006 and 2010 at a regional hand centre in the United Kingdom was determined. The patient demographics, mechanism of injury, co-morbid factors, operative and post-operative details were extracted and reviewed from the medical and hand therapy notes. Predictive factors of survival were determined by using univariate and multivariate statistical analysis. The survival rate was 70%. Arterial thrombosis was the leading cause of replant failure, followed by venous congestion. Smoking, level of amputation, number of nerves repaired, warm ischaemia time and timing of replantation were independent predictors of replant survival. However, only warm ischaemia time less than 6 hours and 30 minutes and replantations done within 'office hours' showed significance on multivariate logistic regression. Our study suggests that replantations done in daylight hours, when feasible, with rested staff and a full complement of the theatre team are likely to have better outcomes. LEVEL OF EVIDENCE Level IV case series.
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Affiliation(s)
- A Breahna
- St Andrew's Centre for Plastic Surgery and Burns, Broomfield Hospital, Chelmsford, UK
| | - A Siddiqui
- St Andrew's Centre for Plastic Surgery and Burns, Broomfield Hospital, Chelmsford, UK
| | - E Fitzgerald O'Connor
- St Andrew's Centre for Plastic Surgery and Burns, Broomfield Hospital, Chelmsford, UK
| | - F C Iwuagwu
- St Andrew's Centre for Plastic Surgery and Burns, Broomfield Hospital, Chelmsford, UK
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Bhatia S, Khandia R, Sood R, Bhat S, Siddiqui A, Jahagirdhar G, Mishra S, Mishra A, Pateriya A, Kulkarni D. Reverse genetics based rgH5N2 vaccine provides protection against high dose challenge of H5N1 avian influenza virus in chicken. Microb Pathog 2016; 97:172-7. [DOI: 10.1016/j.micpath.2016.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 06/05/2016] [Accepted: 06/06/2016] [Indexed: 11/25/2022]
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Ambartsumyan L, Siddiqui A, Bauer S, Nurko S. Simultaneous urodynamic and anorectal manometry studies in children: insights into the relationship between the lower gastrointestinal and lower urinary tracts. Neurogastroenterol Motil 2016; 28:924-33. [PMID: 27214097 PMCID: PMC4880423 DOI: 10.1111/nmo.12794] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 01/13/2016] [Indexed: 12/07/2022]
Abstract
BACKGROUND Children with urinary incontinence (UI) have associated functional constipation (FC) and fecal incontinence (FI). The physiology between lower urinary tract (LUT) and anorectum in children has not been elucidated. AIMS Observe the effect of rectal distention (RD) on LUT function, and bladder filling and voiding on anorectal function. METHODS Children with voiding dysfunction referred to Boston Children's Hospital were prospectively enrolled in combined urodynamic (UDS) and anorectal manometry (ARM). Anorectal and urodynamic parameters were simultaneously measured. Patients underwent two micturition cycles, first with rectal balloon deflated and second with it inflated (RD). Lower urinary tract and anorectal parameters were compared between cycles. KEY RESULTS Ten children (seven UI, four recurrent UTIs, nine FC ± FI) were enrolled. Postvoid residual (PVR) increased (p = 0.02) with RD. No differences were observed in percent of bladder filling to expected bladder capacity, sensation, and bladder compliance with and without RD. Bladder and abdominal pressures increased at voiding with RD (p < 0.05). Intra-anal pressures decreased at voiding (p < 0.05), at 25% (p = 0.03) and 50% (p = 0.06) of total volume of bladder filling. CONCLUSIONS & INFERENCES The PVR volume increased with RD. Stool in the rectum does not alter filling cystometric capacity but decreases the bladder's ability to empty predisposing patients with fecal retention to UI and UTIs. Bladder and abdominal pressures increased during voiding, demonstrating a physiological correlate of voiding dysfunction. Intra-anal pressures decreased during bladder filling and voiding. This is the first time intra-anal relaxation during bladder filling and voiding has been described.
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Affiliation(s)
- L Ambartsumyan
- Center for Motility and Functional Gastrointestinal Disorders, Boston Children's Hospital, Boston, MA, USA
| | - A Siddiqui
- Center for Motility and Functional Gastrointestinal Disorders, Boston Children's Hospital, Boston, MA, USA
| | - S Bauer
- Department of Urology, Boston Children's Hospital, Boston, MA, USA
| | - S Nurko
- Center for Motility and Functional Gastrointestinal Disorders, Boston Children's Hospital, Boston, MA, USA
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Sinha N, Scheinin S, Siddiqui A, Goodarzi A, Kaleekal T, Youssef J, Gaber A. A Strategy of Performing Coronary Artery Bypass Grafting (CABG) Prior to Wait-Listing Candidates for Lung Transplantation (LT) Is Safe and Feasible. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.863] [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: 11/15/2022] Open
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