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Maher S, Moore Z, Avsar P, Patton D. What is the impact of a fast-track pathway on length of stay for adult patients with a hip fracture? A systematic review. Arch Orthop Trauma Surg 2022; 142:3803-3816. [PMID: 34853866 DOI: 10.1007/s00402-021-04248-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 11/01/2021] [Indexed: 11/25/2022]
Abstract
INTRODUCTION In orthopaedic surgery, hip fracture patients represent one of the largest cohorts. Hip fracture is a serious injury commonly occurring in frail and elderly patients. Fast-track admission pathways aim to streamline patients through accident and emergency departments, resulting in shorter wait times and less negative patient outcomes. AIM To examine the impact of a fast-track pathway on length of stay for adults admitted to an acute hospital with a hip fracture. METHODS CINAHL Plus with Full text (via EBSCO host), MEDLINE, Cochrane Library, and Embase database searches were carried out in January 2021, to find all relevant literature for this review, as well as through searching additional sources. Eligible studies were quantitative primary research, focusing on the use of fast-track admission pathway care versus usual care, for adults with a hip fracture. The assessment of study suitability, data extraction, and critical appraisal was carried out by two independent authors. A narrative analysis of the data was conducted, and data were meta-analysed using RevMan where possible. Quality appraisal of the included studies was undertaken using the EBL checklist. RESULTS Seven studies reporting data on 5723 patients were included. Length of stay, time to surgery, and mortality did not differ significantly between the fast-track care, and usual care. One study reported on delirium and found statistically significantly fewer encounters of delirium in fast-track care versus usual care. Four of the seven studies satisfied rigorous quality appraisal (> 75%) using the EBL. CONCLUSION The fast-track pathway avoided unnecessary delays in emergency departments due to faster X-rays, direct admission to orthopaedic wards, and reduced delirium rates. However, results were unable to show the impact of fast-track on length of stay, time to surgery, and mortality.
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Affiliation(s)
- Sarah Maher
- University Hospital Limerick, Limerick, Ireland.
| | - Zena Moore
- School of Nursing and Midwifery and Skin Wounds and Trauma Research Centre, RCSI University of Medicine and Health Sciences, Dublin, Ireland
- Fakeeh College of Health Sciences, Jeddah, Saudi Arabia
- Lida Institute, Shanghai, People's Republic of China
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
- Cardiff University, Wales, UK
| | - Pinar Avsar
- School of Nursing and Midwifery and Skin Wounds and Trauma Research Centre, RCSI University of Medicine and Health Sciences, Dublin, Ireland
| | - Declan Patton
- School of Nursing and Midwifery and Skin Wounds and Trauma Research Centre, RCSI University of Medicine and Health Sciences, Dublin, Ireland
- Fakeeh College of Health Sciences, Jeddah, Saudi Arabia
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
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Azam H, Maher S, Marcone S, Prencipe M. Small-molecule inhibitors of the Serum Response Factor in combination with enzalutamide: New strategy to treat castrate-resistant prostate cancer. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)01196-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Eugene Wong HC, Maher S, Jidon J. Preliminary findings of performing aerosol generating procedures using a novel innovative mask in times of COVID-19 pandemic. Med J Malaysia 2021; 76:20-22. [PMID: 34558552] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This article describes an innovative mask consisting of a newly fabricated 3-ply surgical face mask with a custom made attachment consisting of a plastic dome and a oneway valve port that allows endoscopes to be inserted through it. The mask was tested in-vitro with simulated sneezing using fluorescent dyes and also received positive feedbacks from field tests of 30 masks on real users in different hospitals. This innovative mask is useful in providing extra barrier for endoscopic procedures in ENT and can be used beyond this pandemic in patients with other infectious diseases.
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Affiliation(s)
- H C Eugene Wong
- Universiti Malaysia Sabah, Faculty of Medicine and Health Sciences, Department of Surgery, Kota Kinabalu, Sabah, Malaysia.
| | - S Maher
- Universiti Malaysia Sabah, Faculty of Medicine and Health Sciences, Department of Medical Education, Kota Kinabalu, Sabah, Malaysia
| | - J Jidon
- Universiti Malaysia Sabah, 3Faculty of Engineering, Kota Kinabalu, Sabah, Malaysia
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Abdel-Gaber R, Maher S, Abdel-Gaber R. Morphological Re-description of Camallanus polypteri) Nematoda: Camallanidae) Infecting the African Sharptooth Catfish Clarias gariepinus (Clariidae). Arch Razi Inst 2021; 76:303-309. [PMID: 34223729 DOI: 10.22092/ari.2020.128858.1424] [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] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 02/17/2020] [Indexed: 09/30/2022]
Abstract
Fish represents one of the major sources of animal proteins, and different species of fish are susceptible to infections with parasites which cause severe tissue damage and cell destruction of the infected organ. Therefore, in 2019, this parasitological study was conducted to assess the helminth parasites infecting the African sharptooth catfish Clarias gariepinus that were collected from Lake Manzala, Egypt. Only nematode parasite was reported as a prevalent infection from the fish stomach with an infection rate of 7.5%. Depending on the seasonal prevalence, the extent of the infection was analyzed. It was indicated that parasite infection was only reported as 15% in the winter season. Morphological and morphometric analyses of the present parasite species revealed that it possesses all the characteristics of the Camallanus genus, whereas it is closely related to Camallanus polypteri described previously. It is characterized by the presence of a buccal capsule with longitudinal internal ridges, some of which are very short and ranged from 8-14 in males and 8-9 in females. The esophagus consisted of muscular and glandular portions, the middle position of the excretory pore to the muscular esophagus, the anterior location of deirids to the nerve ring, posterior end of males with two unequal spicules and caudal papillae; nonetheless, it is smooth and straight in females. In addition, some morphology and measurement differences for the different body parts were identified with other Camallanus species. Therefore, the present study can provide a full morphologically re-description of Camallanus polypteri with a new geographical location in the Egyptian freshwater.
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Affiliation(s)
- R Abdel-Gaber
- Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - S Maher
- Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Heliopolis, Egypt
| | - R Abdel-Gaber
- Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt.,Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia.,Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt
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Brayden D, Hill T, Fairlie D, Maher S, Mrsny R. Systemic delivery of peptides by the oral route: Formulation and medicinal chemistry approaches. Adv Drug Deliv Rev 2020; 157:2-36. [PMID: 32479930 DOI: 10.1016/j.addr.2020.05.007] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023]
Abstract
In its 33 years, ADDR has published regularly on the po5tential of oral delivery of biologics especially peptides and proteins. In the intervening period, analysis of the preclinical and clinical trial failures of many purported platform technologies has led to reflection on the true status of the field and reigning in of expectations. Oral formulations of semaglutide, octreotide, and salmon calcitonin have completed Phase III trials, with oral semaglutide being approved by the FDA in 2019. The progress made with oral peptide formulations based on traditional permeation enhancers is against a background of low and variable oral bioavailability values of ~1%, leading to a current perception that only potent peptides with a viable cost of synthesis can be realistically considered. Desirable features of candidates should include a large therapeutic index, some stability in the GI tract, a long elimination half-life, and a relatively low clearance rate. Administration in nanoparticle formats have largely disappointed, with few prototypes reaching clinical trials: insufficient particle loading, lack of controlled release, low epithelial particle uptake, and lack of scalable synthesis being the main reasons for discontinuation. Disruptive technologies based on engineered devices promise improvements, but scale-up and toxicology aspects are issues to address. In parallel, medicinal chemists are synthesizing stable hydrophobic macrocyclic candidate peptides of lower molecular weight and with potential for greater oral bioavailability than linear peptides, but perhaps without the same requirement for elaborate drug delivery systems. In summary, while there have been advances in understanding the limitations of peptides for oral delivery, low membrane permeability, metabolism, and high clearance rates continue to hamper progress.
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Beyzaei N, Bao S, Maher S, Silvestri R, Walters A, Dorffner G, Kloesch G, Spruyt K, Ipsiroglu O. Using pictograms to make 'structured behavioural observations' of youth with restless legs syndrome reproducible. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Maher S, Ekstrom T, Ongur D, Levy DL, Norton DJ, Nickerson LD, Chen Y. Functional disconnection between the visual cortex and right fusiform face area in schizophrenia. Schizophr Res 2019; 209:72-79. [PMID: 31126803 DOI: 10.1016/j.schres.2019.05.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 03/28/2019] [Accepted: 05/06/2019] [Indexed: 11/16/2022]
Abstract
Patients with schizophrenia show impairment in processing faces, including facial affect and face detection, but the underlying mechanisms are unknown. We used functional magnetic resonance imaging (fMRI) to characterize resting state functional connectivity between an independent component analysis (ICA)-defined early visual cortical network (corresponding to regions in V1, V2, V3) and a priori defined face-processing regions (fusiform face area [FFA], occipital face area [OFA], superior temporal sulcus [STS] and amygdala) using dual regression in 20 schizophrenia patients and 26 healthy controls. We also investigated the association between resting functional connectivity and neural responses (fMRI) elicited by a face detection paradigm in a partially overlapping sample (Maher et al., 2016) that used stimuli equated for lower-level perceptual abilities. Group differences in functional connectivity were found in right FFA only; controls showed significantly stronger functional connectivity to an early visual cortical network. Functional connectivity in right FFA was associated with (a) neural responses during face detection in controls only, and (b) perceptual detection thresholds for faces in patients only. The finding of impaired functional connectivity for right FFA (but not other queried domain-specific regions) converges with findings investigating face detection in an overlapping sample in which dysfunction was found exclusively for right FFA in schizophrenia during face detection.
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Affiliation(s)
- S Maher
- McLean Hospital, Harvard Medical School, United States of America.
| | - T Ekstrom
- McLean Hospital, Harvard Medical School, United States of America
| | - D Ongur
- McLean Hospital, Harvard Medical School, United States of America
| | - D L Levy
- McLean Hospital, Harvard Medical School, United States of America
| | - D J Norton
- McLean Hospital, Harvard Medical School, United States of America
| | - L D Nickerson
- McLean Hospital, Harvard Medical School, United States of America
| | - Y Chen
- McLean Hospital, Harvard Medical School, United States of America
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Kumarasinghe APW, Inderjeeth C, Maher S, Chakera A, Dogra S, Chan K. 122CLINICIAN ATTITUDES REGARDING THE UTILITY OF FRAILTY TOOLS IN MANAGING OLDER ADULTS WITH END STAGE KIDNEY DISEASE: LITERATURE REVIEW AND SURVEY STUDY. Age Ageing 2019. [DOI: 10.1093/ageing/afy204.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | | | - A Chakera
- Departments of Geriatrics
- Nephrology Sir Charles Gairdner Hospital, Nedlands, Western Australia. WA
| | - S Dogra
- Departments of Geriatrics
- Nephrology Sir Charles Gairdner Hospital, Nedlands, Western Australia. WA
| | - K Chan
- Departments of Geriatrics
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9
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Bristow R, Young I, Pemberton A, Williams J, Maher S. An extensive review of the extraction techniques and detection methods for the taste and odour compound geosmin (trans-1, 10-dimethyl-trans-9-decalol) in water. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.10.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Navabi S, Gorrepati VS, Yadav S, Chintanaboina J, Maher S, Demuth P, Stern B, Stuart A, Tinsley A, Clarke K, Williams ED, Coates MD. Influences and Impact of Anxiety and Depression in the Setting of Inflammatory Bowel Disease. Inflamm Bowel Dis 2018; 24:2303-2308. [PMID: 29788469 DOI: 10.1093/ibd/izy143] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Indexed: 12/22/2022]
Abstract
BACKGROUND Individuals with inflammatory bowel disease (IBD) are at increased risk of developing anxiety or depression (A&D). Crohn's disease (CD) and ulcerative colitis (UC) with comorbid A&D are both more challenging to manage. IBD providers need to better understand the causes and impact of A&D in order to improve care for IBD patients. We sought to identify clinical factors that influence development of A&D and healthcare utilization in IBD. METHODS This is a retrospective analysis using an IBD natural history registry from a single tertiary care referral center. Presence of A&D was determined based upon responses to the Hospital Anxiety and Depression Scale. Demographic and clinical factors were abstracted to evaluate for significant associations. RESULTS Four hundred thirty-two IBD patients (132 UC, 256 CD, and 44 indeterminate colitis) were included in this study. One hundred ninety-two (44.4%) had anxiety or depression or both, and most were female (59.4%, P < 0.05). History of surgery (P < 0.05), female gender (P < 0.05), smoking (P < 0.05), and extra-intestinal manifestations (P < 0.01) were each independently predictive of A&D. Inflammatory bowel disease patients with A&D more often underwent imaging studies (53.6% vs 36.7%, P < 0.05), visited the ED (30.7% vs 20.8%, P < 0.05), or were hospitalized (31.7% vs 21.7%, P < 0.05). They were also more frequently prescribed corticosteroids (50.5% vs 36.7%, P < 0.01) and biologic medications (62.5% vs 51.3%, P < 0.05). Finally, they were more likely to have had at least 1 "no-show" (29.2% vs 16.7%, P < 0.01) and had a higher mean number of "no-shows" (0.69 +/- 0.1 vs 0.30 +/- 0.1, P < 0.01) over the study period. DISCUSSION Anxiety and depression are common in the setting of IBD and are strongly associated with surgical history, disease complications (including extra-intestinal manifestations), smoking, and female gender. Inflammatory bowel disease patients with A&D are also more likely to require therapy and to utilize healthcare resources. This study refines our understanding of A&D development and its impact in IBD and provides additional considerations for management in this setting.
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Affiliation(s)
- Seyedehsan Navabi
- Penn State Hershey Medical Center, Department of Medicine, Division of Gastroenterology & Hepatology, Hershey, Pennsylvania, USA
| | | | - Sanjay Yadav
- Penn State Hershey Medical Center, Department of Psychiatry, Hershey, Pennsylvania, USA
| | - Jaykrishna Chintanaboina
- Penn State Hershey Medical Center, Department of Medicine, Division of Gastroenterology & Hepatology, Hershey, Pennsylvania, USA
| | - Sarah Maher
- Penn State Hershey Medical Center, Department of Medicine, Hershey, Pennsylvania, USA
| | - Peter Demuth
- Penn State Hershey Medical Center, Department of Medicine, Hershey, Pennsylvania, USA
| | - Benjamin Stern
- Penn State Hershey Medical Center, Department of Medicine, Hershey, Pennsylvania, USA
| | - August Stuart
- Penn State Hershey Medical Center, Department of Medicine, Division of Gastroenterology & Hepatology, Hershey, Pennsylvania, USA
| | - Andrew Tinsley
- Penn State Hershey Medical Center, Department of Medicine, Division of Gastroenterology & Hepatology, Hershey, Pennsylvania, USA
| | - Kofi Clarke
- Penn State Hershey Medical Center, Department of Medicine, Division of Gastroenterology & Hepatology, Hershey, Pennsylvania, USA
| | - Emmanuelle D Williams
- Penn State Hershey Medical Center, Department of Medicine, Division of Gastroenterology & Hepatology, Hershey, Pennsylvania, USA
| | - Matthew D Coates
- Penn State Hershey Medical Center, Department of Medicine, Division of Gastroenterology & Hepatology, Hershey, Pennsylvania, USA
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Abstract
BACKGROUND Hospital procedures have been associated with cognitive change in older patients. This study aimed to document the prevalence of mild cognitive impairment in individuals undergoing left heart catheterization (LHC) before the procedure and the incidence of cognitive decline to 3 months afterwards. METHODS AND RESULTS We conducted a prospective, observational, clinical investigation of elderly participants undergoing elective LHC. Cognition was assessed using a battery of written tests and a computerized cognitive battery before the LHC and then at 3 months afterwards. The computerized tests were also administered at 24 hours (or discharge) and 7 days after LHC. A control group of 51 community participants was recruited to calculate cognitive decline using the Reliable Change Index. Of 437 participants, mild cognitive impairment was identified in 226 (51.7%) before the procedure. Computerized tests detected an incidence of cognitive decline of 10.0% at 24 hours and 7.5% at 7 days. At 3 months, written tests detected an incidence of cognitive decline of 13.1% and computerized tests detected an incidence of 8.5%. Cognitive decline at 3 months using written tests was associated with increasing age, whereas computerized tests showed cognitive decline was associated with baseline amnestic mild cognitive impairment, diabetes mellitus, and prior coronary stenting. CONCLUSIONS More than half the patients aged >60 years presenting for LHC have mild cognitive impairment. LHC is followed by cognitive decline in 8% to 13% of individuals at 3 months after the procedure. Subtle cognitive decline both before and after LHC is common and may have important clinical implications. CLINICAL TRIAL REGISTRATION INFORMATION URL: www.anzctr.org.au. Unique identifier: ACTRN12607000051448.
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Affiliation(s)
- David A Scott
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, Melbourne, Australia.,Anaesthesia, Perioperative and Pain Medicine Unit, Melbourne Medical School, University of Melbourne, Australia
| | - Lisbeth Evered
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, Melbourne, Australia.,Anaesthesia, Perioperative and Pain Medicine Unit, Melbourne Medical School, University of Melbourne, Australia
| | - Paul Maruff
- Florey Institute for Neuroscience and Mental Health, Parkville, Victoria, Australia
| | - Andrew MacIsaac
- Department of Cardiology, St Vincent's Hospital, Melbourne, Australia.,Department of Medicine, University of Melbourne, Australia
| | - Sarah Maher
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, Melbourne, Australia
| | - Brendan S Silbert
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, Melbourne, Australia .,Anaesthesia, Perioperative and Pain Medicine Unit, Melbourne Medical School, University of Melbourne, Australia
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Basit H, Maher S, Forster RJ, Keyes TE. Electrochemically Triggered Release of Reagent to the Proximal Leaflet of a Microcavity Supported Lipid Bilayer. Langmuir 2017; 33:6691-6700. [PMID: 28614663 DOI: 10.1021/acs.langmuir.7b01069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A novel and versatile approach to electrichemically triggering the release of a reagent, β-cyclodextrin (β-CD), selectively to the proximal leaflet of a supported lipid bilayer is described. Selective delivery is achieved by creating a spanning lipid bilayer across a microcavity array and exploiting the irreversible redox disassembly of the host-guest complex formed between thiolated ferrocene (Fc) and β-cyclodextrin (β-CD) in the presence of chloride. Self-assembled monolayers of the ferrocene-alkanethiols were formed regioselectively on the interior surface of highly ordered 2.8 μm cavities while the exterior top surface of the array was blocked with a monolayer of mercaptoethanol. The Fc monolayers were complexed with β-CD or β-CD-conjugated to streptavidin (β-CD-SA). Phospholipid bilayers were then assembled across the array via combined Langmuir-Blodgett/vesicle fusion leading to a spanning bilayer suspended across the aqueous filled microcavities. Upon application of a positive potential, ferrocene is oxidized to ferrocinium cation, disrupting the inclusion complex and leading to the release of the β-CD into the microcavity solution where it diffuses to the lower leaflet of the suspended bilayer. Disassembly of the supramolecular complex within the cavities and binding of the β-CD-SA to a biotinylated bilayer was followed by voltammetry and impedance spectroscopy where it caused a large increase in membrane resistance. For unmodified β-CD, the extraction of cholesterol from a cholesterol containing bilayer was evident in a decrease in the bilayer resistance. For the first time, this direct approach to targeted delivery of a reagent to the proximal layer of a lipid bilayer offers the potential to build models of bidirectional signaling (inside-out vs outside-in) in cell membrane model systems.
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Affiliation(s)
- H Basit
- School of Chemical Sciences, National Centre for Sensors Research, Dublin City University , Dublin 9, Ireland
| | - S Maher
- School of Chemical Sciences, National Centre for Sensors Research, Dublin City University , Dublin 9, Ireland
| | - R J Forster
- School of Chemical Sciences, National Centre for Sensors Research, Dublin City University , Dublin 9, Ireland
| | - T E Keyes
- School of Chemical Sciences, National Centre for Sensors Research, Dublin City University , Dublin 9, Ireland
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Santos MA, Bose PS, Maher S, Desai M. Chylous Ascites: An Unusual Complication of Necrotizing Pancreatitis. Am J Med 2017; 130:e151-e152. [PMID: 28159182 DOI: 10.1016/j.amjmed.2016.11.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 11/12/2016] [Accepted: 11/14/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Michael A Santos
- Department of Medicine, Penn State Milton S. Hershey Medical Center, Hershey; WellSpan Good Samaritan Hospital, Lebanon, Pa.
| | | | - Sarah Maher
- Department of Medicine, Penn State Milton S. Hershey Medical Center, Hershey
| | - Meeta Desai
- Department of Gastroenterology, Carilion Clinic, Roanoke, Va
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Moody H, Lind M, Maher S. MicroRNA-31 regulates chemosensitivity in malignant pleural mesothelioma via altered intracellular drug localisation. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61493-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bibby B, Cawthorne C, Reynolds J, Maher S. MicroRNA-330-5p downregulation in oesophageal adenocarcinoma is a potential therapeutic target for enhancing chemoradiation sensitivity in patients. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61559-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Moore CS, Wood TJ, Cawthorne C, Hilton KL, Maher S, Saunderson JR, Archibald S, Beavis AW. A method to calibrate the RS 2000 x-ray biological irradiator for radiobiological flank irradiation of mice. Biomed Phys Eng Express 2016. [DOI: 10.1088/2057-1976/2/3/037001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Maher S, Ekstrom T, Tong Y, Nickerson LD, Frederick B, Chen Y. Greater sensitivity of the cortical face processing system to perceptually-equated face detection. Brain Res 2016; 1631:13-21. [PMID: 26592952 DOI: 10.1016/j.brainres.2015.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 11/30/2022]
Abstract
Face detection, the perceptual capacity to identify a visual stimulus as a face before probing deeper into specific attributes (such as its identity or emotion), is essential for social functioning. Despite the importance of this functional capacity, face detection and its underlying brain mechanisms are not well understood. This study evaluated the roles that the cortical face processing system, which is identified largely through studying other aspects of face perception, play in face detection. Specifically, we used functional magnetic resonance imaging (fMRI) to examine the activations of the fusifom face area (FFA), occipital face area (OFA) and superior temporal sulcus (STS) when face detection was isolated from other aspects of face perception and when face detection was perceptually-equated across individual human participants (n=20). During face detection, FFA and OFA were significantly activated, even for stimuli presented at perceptual-threshold levels, whereas STS was not. During tree detection, however, FFA and OFA were responsive only for highly salient (i.e., high contrast) stimuli. Moreover, activation of FFA during face detection predicted a significant portion of the perceptual performance levels that were determined psychophysically for each participant. This pattern of result indicates that FFA and OFA have a greater sensitivity to face detection signals and selectively support the initial process of face vs. non-face object perception.
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Affiliation(s)
- S Maher
- McLean Hospital, Department of Psychiatry, Harvard Medical School, United States
| | - T Ekstrom
- McLean Hospital, Department of Psychiatry, Harvard Medical School, United States
| | - Y Tong
- McLean Hospital, Department of Psychiatry, Harvard Medical School, United States
| | - L D Nickerson
- McLean Hospital, Department of Psychiatry, Harvard Medical School, United States
| | - B Frederick
- McLean Hospital, Department of Psychiatry, Harvard Medical School, United States
| | - Y Chen
- McLean Hospital, Department of Psychiatry, Harvard Medical School, United States.
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Maher S, Mashhoon Y, Ekstrom T, Lukas S, Chen Y. Deficient cortical face-sensitive N170 responses and basic visual processing in schizophrenia. Schizophr Res 2016; 170:87-94. [PMID: 26690888 PMCID: PMC4707115 DOI: 10.1016/j.schres.2015.12.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/05/2015] [Accepted: 12/08/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Face detection, an ability to identify a visual stimulus as a face, is impaired in patients with schizophrenia. It is unclear whether impaired face processing in this psychiatric disorder results from face-specific domains or stems from more basic visual domains. In this study, we examined cortical face-sensitive N170 response in schizophrenia, taking into account deficient basic visual contrast processing. METHODS We equalized visual contrast signals among patients (n=20) and controls (n=20) and between face and tree images, based on their individual perceptual capacities (determined using psychophysical methods). We measured N170, a putative temporal marker of face processing, during face detection and tree detection. RESULTS In controls, N170 amplitudes were significantly greater for faces than trees across all three visual contrast levels tested (perceptual threshold, two times perceptual threshold and 100%). In patients, however, N170 amplitudes did not differ between faces and trees, indicating diminished face selectivity (indexed by the differential responses to face vs. tree). CONCLUSION These results indicate a lack of face-selectivity in temporal responses of brain machinery putatively responsible for face processing in schizophrenia. This neuroimaging finding suggests that face-specific processing is compromised in this psychiatric disorder.
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Affiliation(s)
| | | | | | | | - Y Chen
- McLean Hospital, Harvard Medical School, United States.
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Abstract
Facial emotion perception impairment in schizophrenia is currently viewed as abnormal affective processing. Facial emotion perception also relies on visual processing. Yet, visual cortical processing of facial emotion is not well understood in this disorder. We measured perceptual thresholds for detecting facial fear and happiness in patients (n=23) and controls (n=23), and adjusted emotion intensity of facial stimuli (via morphing between images of neutral and emotive expressions) for each subject. We then evaluated activations of the visual cortex and amygdala during the performance of perceptually-equated facial emotion detection tasks. Patients had significantly lower fear- and happiness-induced activations in the visual cortex and amygdala. Activations between the visual cortex and amygdala were largely correlated, but the correlations in patients occurred abnormally early in response time course during fear perception. In schizophrenia, visual processing of facial emotion is deficient and visual and affective processing of negative facial emotion may be prematurely associated.
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Affiliation(s)
- S Maher
- McLean Hospital, Harvard Medical School
| | - T Ekstrom
- McLean Hospital, Harvard Medical School
| | - Y Chen
- McLean Hospital, Harvard Medical School
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Rembach A, Evered LA, Li QX, Nash T, Vidaurre L, Fowler CJ, Pertile KK, Rumble RL, Trounson BO, Maher S, Mooney F, Farrow M, Taddei K, Rainey-Smith S, Laws SM, Macaulay SL, Wilson W, Darby DG, Martins RN, Ames D, Collins S, Silbert B, Masters CL, Doecke JD. Alzheimer's disease cerebrospinal fluid biomarkers are not influenced by gravity drip or aspiration extraction methodology. Alzheimers Res Ther 2015; 7:71. [PMID: 26581886 PMCID: PMC4652410 DOI: 10.1186/s13195-015-0157-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 10/20/2015] [Indexed: 11/15/2022]
Abstract
Introduction Cerebrospinal fluid (CSF) biomarkers, although of established utility in the diagnostic evaluation of Alzheimer’s disease (AD), are known to be sensitive to variation based on pre-analytical sample processing. We assessed whether gravity droplet collection versus syringe aspiration was another factor influencing CSF biomarker analyte concentrations and reproducibility. Methods Standardized lumbar puncture using small calibre atraumatic spinal needles and CSF collection using gravity fed collection followed by syringe aspirated extraction was performed in a sample of elderly individuals participating in a large long-term observational research trial. Analyte assay concentrations were compared. Results For the 44 total paired samples of gravity collection and aspiration, reproducibility was high for biomarker CSF analyte assay concentrations (concordance correlation [95%CI]: beta-amyloid1-42 (Aβ42) 0.83 [0.71 - 0.90]), t-tau 0.99 [0.98 - 0.99], and phosphorylated tau (p-tau) 0.82 [95 % CI 0.71 - 0.89]) and Bonferroni corrected paired sample t-tests showed no significant differences (group means (SD): Aβ42 366.5 (86.8) vs 354.3 (82.6), p = 0.10; t-tau 83.9 (46.6) vs 84.7 (47.4) p = 0.49; p-tau 43.5 (22.8) vs 40.0 (17.7), p = 0.05). The mean duration of collection was 10.9 minutes for gravity collection and <1 minute for aspiration. Conclusions Our results demonstrate that aspiration of CSF is comparable to gravity droplet collection for AD biomarker analyses but could considerably accelerate throughput and improve the procedural tolerability for assessment of CSF biomarkers.
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Affiliation(s)
- Alan Rembach
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia
| | - Lisbeth A Evered
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Perioperative Pain Medicine, St Vincent's Hospital, Melbourne, Australia.
| | - Qiao-Xin Li
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Tabitha Nash
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Lesley Vidaurre
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Christopher J Fowler
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Kelly K Pertile
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Rebecca L Rumble
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Brett O Trounson
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Sarah Maher
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Perioperative Pain Medicine, St Vincent's Hospital, Melbourne, Australia.
| | - Francis Mooney
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Perioperative Pain Medicine, St Vincent's Hospital, Melbourne, Australia.
| | - Maree Farrow
- Alzheimer's Australia Victoria, 155 Oak Street, Parkville, Victoria, 3052, Australia.
| | - Kevin Taddei
- Centre of Excellence for Alzheimer's Disease Research & Care, School of Medical Sciences, Edith Cowan University, Joondalup, Western Australia, Australia. .,Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital), Perth, Western Australia, Australia.
| | - Stephanie Rainey-Smith
- Centre of Excellence for Alzheimer's Disease Research & Care, School of Medical Sciences, Edith Cowan University, Joondalup, Western Australia, Australia. .,Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital), Perth, Western Australia, Australia.
| | - Simon M Laws
- Centre of Excellence for Alzheimer's Disease Research & Care, School of Medical Sciences, Edith Cowan University, Joondalup, Western Australia, Australia. .,Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital), Perth, Western Australia, Australia.
| | - S Lance Macaulay
- CSIRO Preventative Health Flagship, Parkville, Victoria, 3010, Australia.
| | - William Wilson
- CSIRO Computational Informatics/Australian e-Health Research Centre, Brisbane, Queensland, 4029, Australia.
| | - David G Darby
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - Ralph N Martins
- Centre of Excellence for Alzheimer's Disease Research & Care, School of Medical Sciences, Edith Cowan University, Joondalup, Western Australia, Australia. .,Sir James McCusker Alzheimer's Disease Research Unit (Hollywood Private Hospital), Perth, Western Australia, Australia.
| | - David Ames
- National Ageing Research Institute, Parkville, Victoria, 3050, Australia.
| | - Steven Collins
- Department of Pathology, University of Melbourne, Parkville, 3010, Australia.
| | - Brendan Silbert
- Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia and Perioperative Pain Medicine, St Vincent's Hospital, Melbourne, Australia.
| | - Colin L Masters
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, 3010, Australia.
| | - James D Doecke
- CSIRO Preventative Health Flagship, Parkville, Victoria, 3010, Australia. .,CSIRO Computational Informatics/Australian e-Health Research Centre, Brisbane, Queensland, 4029, Australia.
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Mongan AM, Lynam-Lennon N, Casey R, Maher S, Pidgeon G, Reynolds JV, O'Sullivan J. Visceral obesity stimulates anaphase bridge formation and spindle assembly checkpoint dysregulation in radioresistant oesophageal adenocarcinoma. Clin Transl Oncol 2015; 18:632-40. [PMID: 26474871 DOI: 10.1007/s12094-015-1411-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 09/14/2015] [Indexed: 01/04/2023]
Abstract
PURPOSE Oesophageal adenocarcinoma is an exemplar model of obesity-associated cancer. Locally advanced disease is treated with neoadjuvant chemoradiotherapy, and survival rates are highest in patients demonstrating a pathological response following neoadjuvant therapy. Given that 55 % of oesophageal adenocarcinoma patients are obese, uncovering the effect of adipose tissue on radioresponse is clinically relevant. This study investigates if adipose tissue activates genomic instability events in radioresponsive (OE33P) and radioresistant (OE33R) oesophageal cancer cell lines and tumour samples. METHODS OE33R and OE33P were cultured with adipose-conditioned media derived from oesophageal adenocarcinoma patients (n = 10). Anaphase bridges, a marker of genomic instability, were enumerated in both cell lines following treatment with adipose media, and normalised to cell number. Genomic instability is regulated by the spindle assembly complex. Expression of two spindle assembly complex genes (MAD2L2, BUB1B) was assessed using qPCR, and validated in patient tumour specimens from viscerally obese (n = 46) and nonobese patients (n = 41). RESULTS Adipose-conditioned media increased anaphase bridging in OE33R (p < 0.0001), with a threefold increase in OE33R compared to OE33P (p < 0.01). Levels of anaphase bridges in OE33R cells correlated with visceral obesity status as measured by waist circumference (R = 0.709, p = 0.03) and visceral fat area (R = 0.794, p = 0.006). Adipose tissue altered expression of MAD2L2 in vitro. In vivo, MAD2L2 expression was higher in viscerally obese oesophageal adenocarcinoma patients compared with nonobese patients (p < 0.05). CONCLUSIONS Anaphase bridge levels are influenced by obesity and radiosensitivity status in oesophageal adenocarcinoma. Furthermore, visceral adipose-conditioned media stimulates dysregulation of the spindle assembly complex in oesophageal adenocarcinoma patients.
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Affiliation(s)
- A M Mongan
- Department of Surgery, Trinity Centre for Health Sciences, St. James's Hospital, Dublin 8, Ireland
| | - N Lynam-Lennon
- Department of Surgery, Trinity Centre for Health Sciences, St. James's Hospital, Dublin 8, Ireland
| | - R Casey
- Department of Surgery, Trinity Centre for Health Sciences, St. James's Hospital, Dublin 8, Ireland
| | - S Maher
- Cancer Biology & Therapeutics Lab, School of Biological, Biomedical & Environmental Sciences, University of Hull, Cottingham road, Hull, HU6 76X, UK
| | - G Pidgeon
- Department of Surgery, Trinity Centre for Health Sciences, St. James's Hospital, Dublin 8, Ireland
| | - J V Reynolds
- Department of Surgery, Trinity Centre for Health Sciences, St. James's Hospital, Dublin 8, Ireland
| | - J O'Sullivan
- Department of Surgery, Trinity Centre for Health Sciences, St. James's Hospital, Dublin 8, Ireland.
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Onal B, Bowden L, Seedat S, Maher S, Hunter I, Cawkwell L. EP-1199: The identification of putative biomarkers of radioresistance in rectal cancer tissue using antibody microarray. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41191-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wortley M, Maher S, Bonvini S, Dubuis E, Nasra J, Holt K, Dockry R, Sen S, Singh D, Smith J, Round P, Gilbert S, Marchant V, Ford J, Birrell M, Belvisi M. P4 Establishing A Role For Trpv1 On Sensory Nerves In Copd Associated Chronic Cough. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.154] [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: 11/04/2022]
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Maher S, Birrell M, Bonvini S, Wortley M, Dubuis E, Shala F, Jones V, Flajolet P, Negreskul Y, Britton Z, Hebib L, Belvisi M. P6 Menthol Has Beneficial Effects In The Airways Through A Trpm8-independent Mechanism. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rembach A, Maher S, Mooney F, Nash T, Vidaurre L, Li Q, Fowler C, Pertile K, Trounson B, Rumble R, Rainey‐Smith S, Evered L, Silbert B, Laws SM, Taddei K, Macaulay L, Darby D, Martins R, Collins S, Masters CL, Doecke J. P3‐077: CEREBROSPINAL FLUID BIOMARKERS ARE NOT INFLUENCED BY GRAVITY DRIP OR ASPIRATION EXTRACTION METHODOLOGY. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.1165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Alan Rembach
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | - Sarah Maher
- Centre for Anaesthesia and Cognitive functionMelbourneAustralia
| | - Francis Mooney
- Centre for Anaesthesia and Cognitive functionMelbourneAustralia
| | - Tabitha Nash
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | - Lesley Vidaurre
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | - Qiao‐Xin Li
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | - Chris Fowler
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | - Kelly Pertile
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | - Brett Trounson
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | - Rebecca Rumble
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
| | | | - Lisbeth Evered
- Centre for Anaesthesia & Cognitive function, St. Vincent's HospitalMelbourneAustralia
| | - Brendan Silbert
- Rigshospitalet ‐ Copenhagen University HospitalFitzroyAustralia
| | | | | | | | - David Darby
- Florey Institute of Neuroscience and Mental HealthParkvilleAustralia
| | | | - Steven Collins
- Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
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Syed SUAH, Maher S, Taylor S. Quadrupole mass filter operation under the influence of magnetic field. J Mass Spectrom 2013; 48:1325-1339. [PMID: 24338888 DOI: 10.1002/jms.3293] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Revised: 09/30/2013] [Accepted: 10/02/2013] [Indexed: 06/03/2023]
Abstract
This work demonstrates resolution enhancement of a quadrupole mass filter (QMF) under the influence of a static magnetic field. Generally, QMF resolution can be improved by increasing the number of rf cycles an ion experiences when passing through the mass filter. In order to improve the resolution, the dimensions of the QMF or the operating parameters need to be changed. However, geometric modifications to improve performance increase the manufacturing cost and usually the size of the instrument. By applying a magnetic field, a low-cost, small footprint instrument with reduced power requirements can be realized. Significant improvement in QMF resolution was observed experimentally for certain magnetic field conditions, and these have been explained in terms of our theoretical model developed at the University of Liverpool. This model is capable of accurate simulation of spectra allowing the user to specify different values of mass spectrometer dimensions and applied input signals. The model predicts enhanced instrument resolution R>26,000 for a CO2 and N2 mixture with a 200-mm long mass filter operating in stability zone 3 via application of an axial magnetic field.
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Affiliation(s)
- S U A H Syed
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3GJ, UK
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Belvisi MG, Grace M, Maher S, Wortley M, Dubuis E, Adcock J, Bonvini S, Birrell MA. Pharmacology of Cough. Auton Neurosci 2013. [DOI: 10.1016/j.autneu.2013.05.027] [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]
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Musial K, Zwolinska D, Pruthi R, Sinha M, Casula A, Lewis M, Tse Y, Maxwell H, O'Brien C, Inward C, Sharaf E, Fadel F, Bazaraa H, Hegazy R, Essam R, Manickavasagar B, Shroff R, McArdle A, Ledermann S, Shaw V, Van't Hoff W, Paudyal B, Prado G, Schoeneman M, Nepal MK, Feygina V, Bansilal V, Tawadrous H, Mongia AK, Melk A, Kracht D, Doyon A, Zeller R, Litwin M, Duzowa A, Sozeri B, Bayzit A, Caliskan S, Querfeld U, Wuhl E, Schaefer F, Schmidt B, Canpolat N, Caliskan S, Kara Acar M, Pehlivan S, Tasdemir M, Sever L, Nusken E, Taylan C, von Gersdorff G, Schaller M, Barth C, Dotsch J, Roomizadeh P, Gheissari A, Abedini A, Garzotto F, Zanella M, Kim J, Cena R, Neri M, Nalesso F, Brendolan A, Ronco C, Canpolat N, Sever L, Celkan T, Lacinel S, Tasdemir M, Keser A, Caliskan S, Taner Elmas A, Tabel Y, Ipek S, Karadag A, Elmas O, Ozyalin F, Hoxha (Qosja) A, Gjyzari A, Tushe E, Said RM, Abdel Fattah MA, Soliman DA, Mahmoud SY, Hattori M, Uemura O, Hataya H, Ito S, Hisano M, Ohta T, Fujinaga S, Kise T, Goto Y, Matsunaga A, Hashimoto T, Tsutsumi Y, Ito N, Akizawa T, Maher S, Cho BS, Choi YM, Suh JS, Farid F, El-Hakim I, Salman M, Rajnochova Bloudickova S, Viklicky O, Seeman T, Yuksel S, Caglar M, Becerir T, Tepeli E, Calli Demirkan N, Yalcin N, Ergin A, Hladik M, Sigutova R, Vsiansky F, Safarcik K, Svagera Z, Abd El Monem Soliman N, Bazaraa HM, Nabhan MM, Badr AM, Abd El Latif Shahin M, Skrzypczyk P, Panczyk-Tomaszewska M, Roszkowska-Blaim M, Wawer Z, Bienias B, Zajaczkowska M, Szczepaniak M, Pawlak-Bratkowska M, Tkaczyk M, Kilis-Pstrusinska K, Jakubowska A, Prikhodina L, Ryzhkova O, Poltavets N, Polyakov V. Paediatric nephrology II. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Mohan HM, Collins D, Maher S, Walsh EG, Winter DC, O'Brien PJ, Brayden DJ, Baird AW. The mycotoxin patulin increases colonic epithelial permeability in vitro. Food Chem Toxicol 2012; 50:4097-102. [PMID: 22906760 DOI: 10.1016/j.fct.2012.07.036] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 07/18/2012] [Accepted: 07/19/2012] [Indexed: 01/11/2023]
Abstract
The gastrointestinal lumen is directly exposed to dietary contaminants, including patulin, a mycotoxin produced by moulds. Patulin is known to increase permeability across intestinal Caco-2 monolayers. This study aimed to determine the effect of patulin on permeability, ion transport and morphology in isolated rat colonic mucosae. Mucosal sheets were mounted in Ussing chambers and voltage clamped. Apical addition of patulin (100-500 μM) rapidly reduced transepithelial electrical resistance (TEER) and increased permeability to [(14)C] mannitol (2.9-fold). Patulin also inhibited carbachol-induced electrogenic chloride secretion and histological evidence of mucosal damage was observed. To examine potential mechanisms of action of patulin on colonic epithelial cells, high-content analysis of Caco-2 cells was performed and this novel, quantitative fluorescence-based approach confirmed its cytotoxic effects. With regard to time course, the cytotoxicity determined by high content analysis took longer than the almost immediate reduction of electrical resistance in isolated mucosal sheets. These data indicate patulin is not only cytotoxic to enterocytes but also has the capacity to directly alter permeability and ion transport in intact intestinal mucosae. These data corroborate and extend findings in intestinal cell culture monolayers, and further suggest that safety limits on consumption of patulin may be warranted.
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Affiliation(s)
- H M Mohan
- UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
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Mongan A, Lynam-Lennon N, Maher S, Reynolds J, Pidgeon G, O'Sullivan J. 523 Levels of Anaphase Bridge Formation and Spindle Assembly Checkpoint Genes Are Significantly Affected by Obesity and Radiosensitivity Status in Oesophageal Cancer Patients. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71183-8] [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: 11/17/2022]
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Habib F, El-Mahdy M, Abdel-Hafez A, Maher S. Microemulsion for ocular delivery: ocular irritancy test and in vivo studies of anti-inflammatory action. J Drug Deliv Sci Technol 2012. [DOI: 10.1016/s1773-2247(12)50093-6] [Citation(s) in RCA: 9] [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: 11/28/2022]
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Casey M, Eime R, Payne W, Harvey J, Bellamy M, Maher S. Participation in sport and physical activity for rural adolescent girls: A socio-ecological approach. J Sci Med Sport 2009. [DOI: 10.1016/j.jsams.2008.12.084] [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: 10/21/2022]
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Otago L, Adamcewicz E, Eime R, Maher S. The epidemiology of head, face and eye injuries to female lacrosse players in Australia. Int J Inj Contr Saf Promot 2007; 14:259-61. [DOI: 10.1080/17457300701602381] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Maher S. 419 The role and reasons for injury surveillance in womens lacrosse. J Sci Med Sport 2005. [DOI: 10.1016/s1440-2440(17)30917-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Otago L, Garnham J, Reynolds M, Spittle M, Payne W, Finch C, Maher S. 358 Parental perceptions of sports injury risk. J Sci Med Sport 2005. [DOI: 10.1016/s1440-2440(17)30855-1] [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: 11/29/2022]
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Loh PK, Ramesh P, Maher S, Saligari J, Flicker L, Goldswain P. Can patients with dementia be assessed at a distance? The use of Telehealth and standardised assessments. Intern Med J 2004; 34:239-42. [PMID: 15151669 DOI: 10.1111/j.1444-0903.2004.00531.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Telehealth could be a medium for the provision of cognitive assessments to distant sites. AIMS The aims of the present study were to determine the interrater reliability of the Standardized Mini Mental State Exam (SMMSE) and the Geriatric Depression Scale (GDS) through Telehealth as compared to face-to-face administration. METHODS Duplicate interviews of subjects with crossover of interview modality were carried out. Twenty patients were interviewed between two sites 11 km apart. Subjects were persons older than 65 years (mean age 82 years) who consented to Telehealth assessments. The outcome measures were the differences in assessment scores between the two media. RESULTS The average SMMSE score by remote assessment was 24.0 (range 11.0-30.0) and by direct assessment was 24.3 (range 9.0-30.0). The correlation between direct and remote SMMSE scores was 0.90. The mean difference between direct and remote SMMSE scores was -0.3 (95% confidence interval (CI): -4.6 to 4.0). In 8 of 20 participants (40%) the difference between Telehealth and direct assessments was two points or more on the SMMSE. The average GDS by remote assessment was 6.1 (range 1.0-14.0) and by direct assessment was 5.8 (range 2.0-13.0). The correlation between direct and remote GDS scores was 0.78. The mean difference between direct and remote GDS assessment was 0.3 (95% CI: -3.8 to 4.4). CONCLUSION Remote assessments with SMMSE and GDS using Telehealth methods yielded similar results to direct assessments. However, there was a moderate difference between face-to-face and Telehealth assessments in some subjects, which could influence clinical decision-making.
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Affiliation(s)
- P K Loh
- University of Western Australia School of Medicine and Pharmacology, Perth, Western Australia, Australia.
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Abstract
BACKGROUND Preterm births in the United States increased from 11.0% to 11.4% between 1996 and 1997; they continue to be a complex healthcare problem in the United States. OBJECTIVE The objective of this research was to compare traditional statistical methods with emerging new methods called data mining or knowledge discovery in databases in identifying accurate predictors of preterm births. METHOD An ethnically diverse sample (N = 19,970) of pregnant women provided data (1,622 variables) for new methods of analysis. Preterm birth predictors were evaluated using traditional statistical and newer data mining analyses. RESULTS Seven demographic variables (maternal age and binary coding for county of residence, education, marital status, payer source, race, and religion) yielded a .72 area under the curve using Receiving Operating Characteristic curves to test predictive accuracy. The addition of hundreds of other variables added only a .03 to the area under the curve. CONCLUSION Similar results across data mining methods suggest that results are data-driven and not method-dependent, and that demographic variables offer a small set of parsimonious variables with reasonable accuracy in predicting preterm birth outcomes in a racially diverse population.
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Affiliation(s)
- L K Goodwin
- Health Systems and Primary Care, and School of Nursing and Community and Family Health Medicine, Duke University, Durham, NC, USA.
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Maher S. Assessing age-related sleep disorders. Nurs Older People 2001; 13:27-8. [PMID: 12008243 DOI: 10.7748/nop.13.3.27.s13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Goodwin L, Maher S, Ohno-Machado L, Iannacchione MA, Crockett P, Dreiseitl S, Vinterbo S, Hammond W. Building knowledge in a complex preterm birth problem domain. Proc AMIA Symp 2000:305-9. [PMID: 11079894 PMCID: PMC2243761] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Data mining methods used a racially diverse sample (n = 19,970) of pregnant women and 1,622 variables that were collected in Duke's TMR electronic patient record over a 10-year period. Different statistical and data mining methods were similar when compared using receiver operating characteristic (ROC) curves. Best results found that seven demographic variables yielded .72 and addition of hundreds of other clinical variables added only .03 to the area under the curve (AUC). Similar results across methods suggest that results were data-driven and not method-dependent, and that demographic variables may offer a small set of parsimonious variables with predictive accuracy in a racially diverse population. Work to determine relevant variables for improved predictive accuracy is ongoing.
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Forsyth JP, Kollins S, Palav A, Duff K, Maher S. Has behavior therapy drifted from its experimental roots? A survey of publication trends in mainstream behavioral journals. J Behav Ther Exp Psychiatry 1999; 30:205-20. [PMID: 10619545 DOI: 10.1016/s0005-7916(99)00020-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In recent years it has been suggested that behavior therapy, characterized in part by single-subject designs and an idiographic approach to addressing practical problems, is drifting from its experimental roots. To examine trends in behavior therapy, and to provide an objective index of drift, two archival studies were conducted to identify publication trends in the use of single-subject designs vs. group designs, as well as citations to select basic behavioral science journals. In Study 1, articles appearing in Behavior Therapy from 1970 through 1996 were reviewed and categorized in terms of type of article, design, and citations to experimental journals. Findings from Study 1 suggest declining publication trends in single-subject designs and citations to experimental journals in Behavior Therapy, with a modest increase in the use of group designs over the period. Study 2 was designed to replicate and extend our initial findings by surveying three behavioral journals in addition to Behavior Therapy using the PsychLit database and years covering 1974 through 1996: Behaviour Research and Therapy, Journal of Behavior Therapy and Experimental Psychiatry, and Behavior Modification. Consistent with Study 1, results of Study 2 showed declining trends in single-subject designs for all mainstream behavioral journals. The significance of these findings in light of the argument that behavior therapy has drifted from its experimental roots is discussed, with emphasis on contingencies that may be responsible for the trends observed.
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Affiliation(s)
- J P Forsyth
- Department of Psychology, University at Albany, State University of New York, 12222, USA.
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Lee TC, Shine JD, FitzPatrick DP, Bradley JA, O’Connor JJ, O’Kelly KU, Carr AJ, McCormack BAO, O’Neill P, Cole JS, Watterson JK, Raghunathan S, O’Reilly MJG, Pherwani A, Rice J, McCormack D, Maher SA, Prendergast PJ, Reid AJ, Waide DV, Chambers SD, Bartlett RH, Ceccio SL, Murphy LA, Lacroix D, Murphy BP, Mullett H, Shannon F, Lawlor G, O’Rourke SK, Connolly P, Maher S, Devitt A, McElwain J, O’Reilly P, McCarthy DR, Kernohan G, Buchanan FJ, Sim B, Downes S, Bennett DB, Orr JF, Dorrell PF, Fleming P, Stephens M, Moholkar K, Fenelon G, Doyle AM, Dockrell S, Normoyle P, Geraghty D, MacNamara S, Lacey G, Lally C, McGloughlin T, Grace P, Walsh M, McGIoughlin T, Colgan D, Daly S, Dolan B, Flynn MJ, Shuhaibar M, Neligan MC, McMillan ND, O’Mongain E, Walsh J, Miller R, Mitchell I, O’Neill M, Brennan F, Ridgway P, Blayney AW, Monkhouse WS, O’Brien FJ, Taylor D, Mushipe MT, Shelton JC, Revell PA, McCarthy MA, Pearse KM, O’Keefe DT, Lyons GM, Leane GE, Mulcahy E, Bray K, Conway BA, Halliday DM, Rosenberg JR, Anderson R, Grace PA, Kinsella SM, Harrison AJ, Lyons DJ, Wallace KE, Hill RG, Pembroke JT, Brown CJ, Hatton PV, Bryan K, Buggy M, Noe JM, Nico AC, McConnell LA, McGivern RC, Marsh DR, Meenan BJ, Workman A, Kuiper JH. Royal Academy of Medicine in Ireland Section of Bioengineering. Ir J Med Sci 1999. [DOI: 10.1007/bf02945855] [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: 10/21/2022]
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Samarkandi AH, Al Satli R, Maher S, Al Watidy AF. Surgical removal of a knotted pulmonary artery catheter. Ann Saudi Med 1995; 15:291-2. [PMID: 17590586 DOI: 10.5144/0256-4947.1995.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- A H Samarkandi
- Divisions of Anesthesia and Cardiac Surgery, Department of Surgery, King Khalid University Hospital, Riyadh, Saudi Arabia
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