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Flannigan C, Robinson M, Rodriguez-Sanchez N, Drust B, McGregor R, Galloway S. Skinfold thickness in elite male professional football players: changes across 3 seasons including a COVID-19 lockdown period. SCI MED FOOTBALL 2023:1-8. [PMID: 37606580 DOI: 10.1080/24733938.2023.2248062] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
This study investigates variations in skinfold thickness in a European professional football team within and across multiple seasons, including before and after COVID-19 restrictions. Skinfold thickness was measured in 49 male players on 32 occasions across three seasons (2018/19, 2019/20 and 2020/21). Intra- and inter-seasonal trends were examined by comparing values for the sum of eight skinfolds (sum8) at key time points using linear mixed models. In each season, the largest differences in sum8 occurred after the preseason period. These differences ranged from a mean difference (Mdiff) of -11.0 mm (p < 0.001) in 2018/19 to -4.8 mm (p < 0.001) in 2020/21. Increases in sum8 occurred after each off-season; however, the increase after the off-season before the 2020/21 season (which included the COVID-19 lockdown period) was the lowest in magnitude and was not statistically significant (Mdiff = 2.9 mm, p = 0.06). Changes occurring in sum8 between the start and end of the competitive season did not follow a consistent pattern and were generally smaller in magnitude than the changes between other seasonal time points. Despite the notable heterogeneity in sum8 between players, changes within players generally followed a similar pattern between the different seasonal timepoints. In summary, changes in skinfold thickness were predominantly related to off-season and 'preparation for competition' periods. Increases in skinfold thickness can be mitigated during extended remote training periods with appropriate training and nutritional strategies.
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Affiliation(s)
- Craig Flannigan
- Rangers Football Club, Physical Preparation and Performance, Rangers Training Centre, Glasgow, Scotland
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Scotland
| | - Mark Robinson
- Institute for Social Science Research, University of Queensland, Queensland, Australia
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland
| | - Nidia Rodriguez-Sanchez
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Scotland
| | - Barry Drust
- Rangers Football Club, Physical Preparation and Performance, Rangers Training Centre, Glasgow, Scotland
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, England
| | - Ruairidh McGregor
- Rangers Football Club, Physical Preparation and Performance, Rangers Training Centre, Glasgow, Scotland
| | - Stuart Galloway
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Scotland
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North E, Thayer I, Galloway S, Young Hong M, Hooshmand S, Liu C, Okamoto L, O'Neal T, Philpott J, Rayo VU, Witard OC, Kern M. Effects of short-term pistachio consumption before and throughout recovery from an intense exercise bout on cardiometabolic markers. Metabol Open 2022; 16:100216. [PMCID: PMC9627585 DOI: 10.1016/j.metop.2022.100216] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/07/2022] Open
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Rayo V, Buono M, Carson I, Galloway S, Hong MY, Hooshmand S, Liu C, North E, Okamoto L, O'Neal T, Philpott J, Witard O, Kern M. Influence Of Pistachios On Sports Performance And Oxidative Stress Following Exercise-induced Muscle Damage. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000883500.75702.0d] [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: 11/21/2022]
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North E, Buono M, Carson I, Galloway S, Hong MY, Hooshmand S, Liu C, Okamoto L, O'Neal T, Philpott J, Rayo V, Witard O, Kern M. Effects Of Short-term Pistachio Consumption Before And Throughout Recovery From Intense Exercise On Cardiometabolic Markers. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000883492.25735.63] [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: 11/21/2022]
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Brown B, Varley R, Reynolds E, Galloway S. 839 Patterns of Management of Acute Cholecystitis during the COVID 19 Pandemic. Br J Surg 2021. [PMCID: PMC8524567 DOI: 10.1093/bjs/znab259.480] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aim The poor outcomes described by CovidSurg in patients with Covid-19 undergoing surgical intervention and the unknown safety of laparoscopic surgery initially led to increased conservative management in acute cholecystitis (AC). As the number of cases continues to rise, we aim to assess how the coronavirus pandemic has affected our service and adherence to AUGIS guidelines. Method We retrospectively analysed all adult admissions with radiologically confirmed AC from defined 2-month periods (pre-pandemic (PP), wave-1 (W1) and wave-2 (W2)) at an acute general surgical service without dedicated hot gallbladder lists where the prevalence of coronavirus has remained high throughout. Primary outcome was rate of index admission (acute) cholecystectomy. Results 93 patients were included in total (PP 35, W1 33, W2 24). Demographic details were similar across all groups. Tokyo grade I (mild) cholecystitis was more commonly admitted PP (63.9% versus 48.5% and 50.0%). Conservative management was trialed in 91.7%, 100.0% and 62.5% and failed in 18.2%, 21.2% and 21.1%. Cholecystectomy rates were 13.9%, 12.1% and 29.2%. Increased use of CT in W1 has returned to PP imaging pattern in W2. 30-day readmission rates were 5.6%, 18.2% and 4.2%. Two patients in W1 tested positive for Covid-19 and were managed conservatively. No post-operative pulmonary complications were recorded and no difference in biliary complications was observed. Conclusions Operative management of AC as per AUGIS guidelines during the pandemic in Covid-19 negative patients is safe and improves outcomes compared to conservative management with no appreciable increase in biliary complications.
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Affiliation(s)
- B Brown
- Manchester Foundation Trust, Manchester, United Kingdom
| | - R Varley
- Manchester Foundation Trust, Manchester, United Kingdom
| | - E Reynolds
- Manchester Foundation Trust, Manchester, United Kingdom
| | - S Galloway
- Manchester Foundation Trust, Manchester, United Kingdom
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Wyon MA, Wolman R, Martin C, Galloway S. The efficacy of different vitamin D supplementation delivery methods on serum 25(OH)D: A randomised double-blind placebo trial. Clin Nutr 2020; 40:388-393. [PMID: 32703720 DOI: 10.1016/j.clnu.2020.05.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/20/2020] [Accepted: 05/24/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND The use of vitamin D supplementation has increased due to greater recognition of widespread deficiency. AIMS There has been little research on the effectiveness of different delivery methods and therefore the aim of was to test the efficacy of different delivery methods on serum 25(OH)D. METHODS Using a randomised repeated measures double-blind placebo design (registered under ClinicalTrials.gov Identifier no. NCT03463642), changes in serum 25(OH)D over a 4-week period using a capillary spot method were monitored. 62 female participants blindly chose a number related to a supplementation delivery method: pill placebo, pill, oral liquid, oral liquid placebo, Skin oil application (SOA) placebo, SOA plus vitamin D3 suspension, or SOA plus vitamin D3 suspension with essential oil enhancer; active vitamin D supplements contained 100,000IU. Participants took their allocated supplements over a 24-hr period with serum 25(OH)D retested 4 weeks later. Liquid chromatography-tandem mass spectrometry method was applied to dried blood spot samples by an independent laboratory. RESULTS ANCOVA reported a significant difference between the groups (F1,6 = 146.68; p < 0.001, eta2 = 0.51). Separate analysis within the delivery methods (pill, SOA, oral liquid) indicated significant differences between the active and placebo supplementation groups (p < 0.01). Post hoc analysis of absolute changes indicated vit D pill and SOA + vit D + essential oil had significant increases (p < 0.05) in serum 25(OH)D compared to all other interventions with no significant difference between them. CONCLUSIONS In human participants vitamin D oral pill has the greatest effect on serum 25(OH)D levels. Skin oil application delivery of vitamin D using a penetrator enhancer has also been shown to be an effective method of delivery.
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Affiliation(s)
- M A Wyon
- Sport and Physical Activity Research Centre, Institute of Sport and Health Sciences, University of Wolverhampton, UK
| | - R Wolman
- Department of Rheumatology and Sport and Exercise Medicine, Royal National Orthopaedic Hospital, Stanmore, UK
| | - C Martin
- Worcester Biomedical Science Research Group, Institute of Science and the Environment, St. John's Campus, University of Worcester, Henwick Grove, Worcester, WR2 6AJ, UK.
| | - S Galloway
- Sport and Physical Activity Research Centre, Institute of Sport and Health Sciences, University of Wolverhampton, UK
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Sutehall S, Galloway S, Bosch A, Pitsiladis Y. The Addition Of A Sodium Alginate-pectin Hydrogel To A Carbohydrate Beverage Significantly Enhancesgastric Emptying In Humans. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000562798.78943.42] [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: 11/21/2022]
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Drozd M, Yuldasheva NY, Maqbool A, Viswambharan H, Watt NT, Palin V, Galloway S, Skromna A, Makava N, Wheatcroft SB, Kearney MT, Cubbon RM. P8 INCREASING ENDOTHELIAL INSULIN-LIKE GROWTH FACTOR-1 RECEPTOR EXPRESSION REDUCES CIRCULATING LEUKOCYTES AND PROTECTS AGAINST ATHEROSCLEROSIS. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy216.011] [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: 11/12/2022] Open
Affiliation(s)
- M Drozd
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - N Y Yuldasheva
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - A Maqbool
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - H Viswambharan
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - N T Watt
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - V Palin
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - S Galloway
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - A Skromna
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - N Makava
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - S B Wheatcroft
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - M T Kearney
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
| | - R M Cubbon
- Leeds Institute for Cardiovascular and Metabolic Medicine, LIGHT Laboratories, University of Leeds, UK
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Germetaki T, Kamposioras K, Papaxoinis G, Weaver J, Galloway S, Stamatopoulou S, Nasralla M, Kordatou Z, Anthoney A, Mansoor W. Thromboembolic complications in patients with oesophagogastric adenocarcinoma undergoing preoperative chemotherapy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.016] [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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Walker G, Taylor A, Whittet C, Lynn C, Docherty C, Stephen B, Owens E, Galloway S. A practical review of energy saving technology for ageing populations. Appl Ergon 2017; 62:247-258. [PMID: 28411735 DOI: 10.1016/j.apergo.2017.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 12/11/2015] [Revised: 02/08/2017] [Accepted: 03/03/2017] [Indexed: 06/07/2023]
Abstract
Fuel poverty is a critical issue for a globally ageing population. Longer heating/cooling requirements combine with declining incomes to create a problem in need of urgent attention. One solution is to deploy technology to help elderly users feel informed about their energy use, and empowered to take steps to make it more cost effective and efficient. This study subjects a broad cross section of energy monitoring and home automation products to a formal ergonomic analysis. A high level task analysis was used to guide a product walk through, and a toolkit approach was used thereafter to drive out further insights. The findings reveal a number of serious usability issues which prevent these products from successfully accessing an important target demographic and associated energy saving and fuel poverty outcomes. Design principles and examples are distilled from the research to enable practitioners to translate the underlying research into high quality design-engineering solutions.
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Affiliation(s)
- Guy Walker
- Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh EH14 4AS, UK.
| | | | | | - Craig Lynn
- Glasgow School of Art, Glasgow G3 6RQ, UK
| | | | | | - Edward Owens
- Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh EH14 4AS, UK
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Loh D, Galloway S, Slavin J, Nguyen K, Wei B. Synchronous contralateral pleomorphic adenoma of the parotid gland and submandibular gland. Pathology 2016; 49:92-94. [PMID: 27914682 DOI: 10.1016/j.pathol.2016.09.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/13/2016] [Accepted: 09/20/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Daphne Loh
- St Vincent's Hospital Melbourne, Vic, Australia.
| | | | - John Slavin
- St Vincent's Hospital Melbourne, Vic, Australia
| | - Kevin Nguyen
- Royal Eye and Ear Hospital Melbourne, Vic, Australia
| | - Benjamin Wei
- Royal Eye and Ear Hospital Melbourne, Vic, Australia
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Lorge E, Moore MM, Clements J, O'Donovan M, Fellows MD, Honma M, Kohara A, Galloway S, Armstrong MJ, Thybaud V, Gollapudi B, Aardema MJ, Tanir JY. Standardized cell sources and recommendations for good cell culture practices in genotoxicity testing. Mutat Res Genet Toxicol Environ Mutagen 2016; 809:1-15. [PMID: 27692294 DOI: 10.1016/j.mrgentox.2016.08.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/29/2016] [Accepted: 08/02/2016] [Indexed: 11/16/2022]
Abstract
Good cell culture practice and characterization of the cell lines used are of critical importance in in vitro genotoxicity testing. The objective of this initiative was to make continuously available stocks of the characterized isolates of the most frequently used mammalian cell lines in genotoxicity testing anywhere in the world ('IVGT' cell lines). This project was organized under the auspices of the International Life Sciences Institute (ILSI) Health and Environmental Sciences Institute (HESI) Project Committee on the Relevance and Follow-up of Positive Results in In Vitro Genetic Toxicity (IVGT) Testing. First, cell isolates were identified that are as close as possible to the isolate described in the initial publications reporting their use in genotoxicity testing. The depositors of these cell lines managed their characterization and their expansion for preparing continuously available stocks of these cells that are stored at the European Collection of Cell Cultures (ECACC, UK) and the Japanese Collection of Research Bioresources (JCRB, Japan). This publication describes how the four 'IVGT' cell lines, i.e. L5178Y TK+/- 3.7.2C, TK6, CHO-WBL and CHL/IU, were prepared for deposit at the ECACC and JCRB cell banks. Recommendations for handling these cell lines and monitoring their characteristics are also described. The growth characteristics of these cell lines (growth rates and cell cycles), their identity (karyotypes and genetic status) and ranges of background frequencies of select endpoints are also reported to help in the routine practice of genotoxicity testing using these cell lines.
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Affiliation(s)
- E Lorge
- Servier Group, 45520, Gidy, France
| | - M M Moore
- Ramboll Environ, Little Rock, AR, 72201, USA
| | - J Clements
- Covance Laboratories Ltd, Harrogate, HG3 1PY, UK
| | - M O'Donovan
- O'Donovan GT Consulting Ltd., Epperstone, Nottingham, NG14 6AG, UK
| | - M D Fellows
- AstraZeneca, Drug Safety and Metabolism, Cambridge, CB4 0WG, UK
| | - M Honma
- National Institute of Health Sciences, Tokyo, Japan
| | - A Kohara
- JCRB Cell Bank, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - S Galloway
- Merck Research Laboratories, W 45-316, West Point, PA 19486, USA
| | - M J Armstrong
- Merck Research Laboratories, W 45-316, West Point, PA 19486, USA
| | - V Thybaud
- Sanofi, 94400, Vitry sur Seine, France
| | - B Gollapudi
- Exponent, Inc., 1910 St. Andrews St., Midland, MI 48640, USA
| | - M J Aardema
- Marilyn Aardema Consulting LLC, Fairfield, OH 45014, USA
| | - J Y Tanir
- ILSI Health and Environmental Sciences Institute, Washington, DC 20005, USA.
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Aleksova J, Ward G, Taubman K, Tan J, Farrell S, Galloway S, MacIsaac RJ, Sachithanandan N. Cushing's conundrum: an unusual case of primary pigmented nodular adrenal disease in a 60-year-old woman. Lancet Diabetes Endocrinol 2016; 4:630. [PMID: 26527509 DOI: 10.1016/s2213-8587(15)00262-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/28/2015] [Accepted: 07/06/2015] [Indexed: 11/25/2022]
Affiliation(s)
- Jasna Aleksova
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia.
| | - Glenn Ward
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia
| | - Kim Taubman
- Department of Nuclear Medicine, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia
| | - Jason Tan
- Department of Surgery, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia
| | - Stephen Farrell
- Department of Surgery, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia
| | - Stuart Galloway
- Department of Pathology, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia
| | - Richard J MacIsaac
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia
| | - Nirupa Sachithanandan
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne Fitzroy, Melbourne, Australia
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Gamage J, De Silva A, Nalliah A, Galloway S. Variability in the sweating rate and sweat electrolyte loss of cricketers during exercise in hot and humid conditions. J Sci Med Sport 2015. [DOI: 10.1016/j.jsams.2015.12.357] [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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Mirza A, Galloway S. Laparoscopy, computerised tomography and fluorodeoxyglucose positron emission tomography in the management of gastric and gastro-oesophageal junction cancers. Surg Endosc 2015; 30:2690-6. [PMID: 26487234 DOI: 10.1007/s00464-015-4590-2] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 09/19/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND The staging laparoscopy has been used in the management of gastrointestinal cancers. The aim of this study was to evaluate the role of staging laparoscopy, in comparison with computed tomography (CT) and fluorodeoxyglucose positron emission tomography (FDG-PET) imaging in staging patients with gastro-oesophageal junction (GOJ) and gastric cancers. METHODS The data were collected for patients between 1996 and 2013 undergoing investigation and treatment for GOJ and gastric cancers at a single institute. The pre-operative data (staging data), intraoperative details, post-operative course and follow-up were analysed for individual cases. RESULTS Staging laparoscopy altered management plan in 64 (17 %) of 387 patients with negative staging CT and FDG-PET scan. Twenty-seven (7 %) patients with GOJ cancer (types I, II and III) were identified with pathological intraperitoneal nodes, 15 (4 %) gastric cancer with metastatic intraperitoneal deposits and liver metastases and 3 % gastric cancers with positive ascitic fluid for cancer cells. Ten (3 %) of patients were downstaged and were offered curative resection. Patients with metastatic disease were referred for palliative chemotherapy. The overall sensitivity of staging laparoscopy in diagnosing intraabdominal pathology was 86 % in comparison with CT (81 %) and FDG-PET (78 %). CONCLUSIONS The diagnostic laparoscopy is useful for detecting and confirming nodal involvement and distant metastatic disease not evident on the staging CT scan and FDG-PET. This could potentially alter treatment and prognosis in patients with upper gastrointestinal cancer. The diagnostic laparoscopy should be performed as part of investigation and treatment planning for patients suffering from GOJ and gastric cancers. This can help to avoid surgery in patients with advanced disease.
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Affiliation(s)
- A Mirza
- Department of Oesophago-Gastric Surgery, The University Hospital of South Manchester, Manchester, UK. .,Department of General Surgery, The University Hospital of South Manchester, SouthMoor Road, Manchester, M23 2RW, UK.
| | - S Galloway
- Department of Oesophago-Gastric Surgery, The University Hospital of South Manchester, Manchester, UK
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Hamilton DL, Jeromson S, Dick J, Bell G, Whitfield P, Galloway S, Gallagher I. Unpicking the Molecular Basis of n-3 Fatty-Acid Action in Skeletal Muscle with Systems Based Approaches. Med Sci Sports Exerc 2015. [DOI: 10.1249/01.mss.0000479134.57138.2f] [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: 11/21/2022]
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Shah P, Viswambharan H, Gatenby VK, Imrie H, Haywood N, Galloway S, Sengupta A, Cubbon RM, Gage M, Skromna A, Makova N, Grant P, Yuldasheva N, Beech DJ, Wheatcroft SB, Kearney MT. ENDOTHELIAL-SPECIFIC OVEREXPRESSION OF MUTATED INSULIN-LIKE GROWTH FACTOR-1 RECEPTORS (IGF-1R) ENHANCES ENDOTHELIAL INSULIN SENSITIVITY AND VASCULAR HYDROGEN PEROXIDE GENERATION. Heart 2014. [DOI: 10.1136/heartjnl-2014-306916.18] [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: 11/03/2022]
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Viswambharan H, Sukumar P, Gage M, Sengupta A, Imrie H, Yuldasheva N, Galloway S, Cubbon R, Wheatcroft S, Kearney MT. Enhancing endothelial insulin sensitivity reduces NO bioavailability: a role for NADPH oxidase-derived reactive oxygen species. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5677] [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: 11/14/2022] Open
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Gage M, Wheatcroft S, Abbas A, Imrie H, Viswambharan H, Galloway S, Sukumar P, Cubbon R, Smith J, Schurmans S, Jacoby M, Dubois E, Kearney M. 241 ENDOTHELIAL SHIP2 CONFERS AGE-DEPENDENT CONTRASTING AFFECTS ON WHOLE BODY GLUCOSE HOMEOSTASIS AND VASCULAR FUNCTION. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.241] [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: 11/03/2022]
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Sukumar P, Viswambharan H, Imrie H, Cubbon R, Yuldasheva N, Gage M, Galloway S, Skromna A, Kandavelu P, Santos CX, Gatenby K, Smith J, Beech DJ, Wheatcroft SB, Channon KM, Shah AM, Kearney MT. 195 TARGETING NOX2 NADPH OXIDASE IN INSULIN RESISTANCE RELATED ENDOTHELIAL DYSFUNCTION. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.195] [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: 11/03/2022]
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Sukumar P, Viswambharan H, Imrie H, Cubbon RM, Yuldasheva N, Gage M, Galloway S, Skromna A, Kandavelu P, Santos CX, Gatenby VK, Smith J, Beech DJ, Wheatcroft SB, Channon KM, Shah AM, Kearney MT. E: TARGETING NOX2 NADPH OXIDASE IN INSULIN RESISTANCE RELATED ENDOTHELIAL DYSFUNCTION. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.278] [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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Viswambharan H, Sukumar P, Gage M, Imrie H, Sengupta A, Turner J, Yuldasheva N, Skromna A, Galloway S, Smith J, Cubbon R, Wheatcroft S, Kearney M. 171 NOX2-DERIVED REACTIVE OXYGEN SPECIES CAUSES VASCULAR DYSFUNCTION IN MURINE MODEL OF ENDOTHELIAL INSULIN SENSITIVITY AND ACTIVATION OF NRF2 TRANSCRIPTION FACTOR. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.171] [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: 11/03/2022]
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Morrison EJ, Wei BPC, Galloway S, De Alwis N, Lyons B, Baker T. A rare case of sinonasal ameloblastoma presenting with complete nasal obstruction. ANZ J Surg 2012; 81:931-2. [PMID: 22507424 DOI: 10.1111/j.1445-2197.2011.05904.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sukumar P, Viswambharan H, Imrie H, Cubbon RM, Yuldasheva N, Gage M, Galloway S, Skromna A, Smith J, Gatenby K, Beech DJ, Wheatcroft SB, Channon KM, Shah AM, Kearney MT. 105 NOX2 NADPH—oxidase a novel target to prevent insulin resistance related endothelial cell dysfunction. Heart 2012. [DOI: 10.1136/heartjnl-2012-301877b.105] [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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Gage MC, Yuldasheva NY, Viswambharan H, Sukumar P, Cubbon RM, Galloway S, Imrie H, Skromna A, Smith J, Jackson C, Kearney MT, Wheatcroft SB. D Endothelium specific insulin resistance leads to accelerated atherosclerosis: a role for reactive oxygen species. Heart 2012. [DOI: 10.1136/heartjnl-2012-301877a.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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Imrie H, Viswambharan H, Sukumar P, Abbas A, Yuldasheva N, Gage M, Galloway S, Wheatcroft SB, Kearney MT. 109 Overexpression of endothelial insulin-like growth factor-1 receptors (IGF-1R): a novel role for IGF-1R in endothelial function and repair. Heart 2012. [DOI: 10.1136/heartjnl-2012-301877b.109] [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: 11/03/2022]
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Viswambharan H, Sukumar P, Gage MC, Yuldasheva N, Skromna A, Imrie H, Galloway S, Smith J, Cubbon R, Wheatcroft SB, Kearney MT. 104 Enhancing endothelial insulin sensitivity reduces nitric oxide bioavailability: a role for NADPH oxidase-derived reactive oxygen species. Heart 2012. [DOI: 10.1136/heartjnl-2012-301877b.104] [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: 11/03/2022]
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Gage MC, Yuldasheva N, Jackson C, Kearney M, Imrie H, Viswambharan H, Kahn M, Smith J, Galloway S, Cubbon R, Sukumar P, Aziz A, Wheatcroft S. 139 Endothelial specific insulin resistance promotes the development of atherosclerosis. Heart 2011. [DOI: 10.1136/heartjnl-2011-300198.139] [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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Sem Liew M, Chan AM, Galloway S, Comin G, Flaim B, Prince HM, Quach H. Extra-nasal NK/T cell lymphoma masquerading as renal infarction. Leuk Lymphoma 2010; 51:1139-41. [PMID: 20370540 DOI: 10.3109/10428191003777971] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Takechi R, Pallebage-Gamarallage M, Galloway S, Lam V, Johnsen R, Wellington C, Mamo J. Probucol Reduces Enterocytic Amyloid-β Relative to Chylomicron Apolipoprotein B in Mice Chronically Fed Saturated Fats. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/j.atherosclerosissup.2010.04.036] [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: 11/27/2022]
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Proctor L, Tutt D, Olliver D, Galloway S, Juengel JL, Farquhar P, Martínez MF. 36 FOLLICULAR DYNAMICS IN PROLIFIC SHEEP: PGF-BASED ESTRUS SYNCHRONIZATION. Reprod Fertil Dev 2010. [DOI: 10.1071/rdv22n1ab36] [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: 11/23/2022] Open
Abstract
A study was designed to compare the effect of a prostaglandin-based synchronization protocol on ovarian follicular dynamics in sheep with the FecB (Booroola) mutation. Forty dry Romney sheep (57.6 ± 7.3 kg; 6.1 ± 1.1 years) were randomly selected from both Invermay Booroola (BB; n = 20) and commercial (non-FecB carriers, ++; n = 20) flocks. All ewes had their estrous cycles synchronized with 2 i.m. injections of PGF (150 μg of cloprostenol, Estrumate, Schering-Plough Coopers Animal Health Ltd., New Zealand) administered 7 days apart. Ewes were monitored by transrectal ultrasonography (Aloka 900-SSD and a 7.5-MHz linear-array transducer, Aloka, Tokyo, Japan) daily from Day -2 to the day of ovulation. Data were analyzed by Student’s t-test or Wilcoxon Rank Sum test. Variances were compared with Barlett’s test. Paired t-test compared the number of preovulatory follicles in each genotype after PGF treatments and intervals from PGF to ovulation after PGF. Data are presented as mean (± SEM). The number of corpora lutea (CL) and total CL area at the time of the first and second PGF treatment were 4.4 ± 0.6; 5.7 ± 1.4 and 672.1 ± 133.5 mm2; 999.0 ± 145.9 mm2 in the BB and 2.1 ± 0.2; 2.1 ± 0.5 and 342.3 ± 60.7 mm2; 401.3 ± 68.6 mm2 in ++ ewes, respectively. These 2 variables were higher (P < 0.01) at both PGF injections in the BB than in the ++ ewes, except the CL area at the time of first PGF treatment (P = 0.15). The largest follicle diameter at the time of the first and second PGF treatments was smaller (P < 0.003) in BB (4.1 ± 0.3 mm; 3.5 ± 0.2 mm) than in ++ (5.3 ± 0.3 mm; 5.8 ± 0.1 mm) ewes. The median and mean number of follicles that ovulated after the first and second PGF treatment were higher (P < 0.0001) in BB (6 & 7; 5.7 ± 0.3; 6.9 ± 0.3; difference = 1.2 ± 0.4; P < 0.003) than in the ++ (2 & 2; 2.1 ± 0.1; 2.1 ± 0.1) sheep. The luteal area at the time of first and second PGF in both BB and ++ did not differ (P = 0.3). The intervals from the first and second PGF to the respective ovulations did not differ (P > 0.61) between BB (3.4 ± 0.2; 3.0 ± 0.3d) and ++ (3.5 ± 0.2d; 3.0 ± 0.1d) ewes. However, interval from the second PGF to ovulation was more variable (P = 0.002) in the BB than in the ++ ewes. Data of both groups were combined and a mean significant difference of 0.6 ± 0.2d (P < 0.003) was found between the first and second PGF-to-ovulation intervals. The interval from the first PGF to emergence of the next follicular wave was shorter (P < 0.02) and more variable (P < 0.03) in the BB (2.7 ± 0.4d) than in the ++ (3.5 ± 0.2 d) group. Preovulatory follicles were smaller in Booroola, but higher in number, than in ++ ewes, whereas the luteal area was similar. Within the BB ewes, the higher number of follicles that ovulated after the second PGF than after the first injection may be due to a higher follicular response to an elevated rebound in circulating FSH after the first PGF. A high number of growing follicles of the first follicular wave may also have contributed to this event. These findings warrant further research aimed at the study of the interaction between FSH and follicle dynamics in estrus synchronized sheep carrying the FecB mutation.
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Pallebage-Gamarallage M, Galloway S, Johnsen R, Jian L, Takechi R, Mamo J. The effect of exogenous cholesterol and lipid modulating agents on apolipoprotein B and amyloid-beta abundance in the absorptive epithelial cells of the small intestine. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/j.atherosclerosissup.2008.09.414] [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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Galloway S, Takechi R, Pallebage-Gamarallage M, Jian L, Johnsen R, Mamo J. Effect of fatty acids on enterocytic beta-amyloid abundance: Possible aetiology in Alzheimer’s disease. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/j.atherosclerosissup.2008.09.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Galloway S, Cheung C, Takechi R, Pallebage-Gamarallage M, Mamo J. Differential effects of saturated fatty acid, monounsaturated fatty acid and polyunsaturated fatty acid on chylomicron metabolism in the small intestine. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/j.atherosclerosissup.2008.09.402] [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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Galloway S. Nutrition and Biochemistry in the Journal of Sports Sciences: A call for papers and announcing the introduction of letters to the editor. J Sports Sci 2008. [DOI: 10.1080/02640410802321342] [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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Takechi R, Galloway S, Johnsen R, Mamo J. Immunohistological analysis of intestinal apolipoprotein B and its three-dimensional colocalization with Golgi apparatus. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/j.atherosclerosissup.2008.09.418] [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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Takechi R, Galloway S, Pallebage-Gamarallage MMS, Mamo JCL. Chylomicron amyloid-beta in the aetiology of Alzheimer's disease. ATHEROSCLEROSIS SUPP 2008; 9:19-25. [PMID: 18640080 DOI: 10.1016/j.atherosclerosissup.2008.05.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Revised: 03/12/2008] [Accepted: 05/13/2008] [Indexed: 01/08/2023]
Abstract
Alzheimer's disease is characterized by inflammatory proteinaceous deposits comprised principally of the protein amyloid-beta (Abeta). Presently, the origins of cerebral amyloid deposits are controversial, though pivotal for the prevention of Alzheimer's disease. Recent evidence suggests that in blood, Abeta may serve as a regulating apoprotein of the triglyceride-rich-lipoproteins and we have found that the synthesis of Abeta in enterocytes and thereafter secretion as part of the chylomicron cascade is regulated by dietary fats. It is our contention that chronically elevated plasma levels of Abeta in response to diets rich in saturated fats may lead to disturbances within the cerebrovasculature and exaggerated blood-to-brain delivery of circulating Abeta, thereby exacerbating amyloidosis. Consistent with this hypothesis we show that enterocytic Abeta is increased concomitant with apolipoprotein B48. Furthermore, cerebral extravasation of immunoglobulin G, a surrogate marker of plasma proteins is observed in a murine model of Alzheimer's disease maintained on a saturated-fat diet and there is diminished expression of occludin within the cerebrovasculature, an endothelial tight junction protein.
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Affiliation(s)
- R Takechi
- Faculty of Health Sciences, Curtin University of Technology, ATN Centre for Metabolic Health and Fitness, Building 400, Bentley Campus, Perth, Western Australia 6102, Australia
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Takechi R, Galloway S, Pallebage-Gamarallage MMS, Johnsen RD, Mamo JCL. Three-dimensional immunofluorescent double labelling using polyclonal antibodies derived from the same species: enterocytic colocalization of chylomicrons with Golgi apparatus. Histochem Cell Biol 2008; 129:779-84. [PMID: 18299879 DOI: 10.1007/s00418-008-0404-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2008] [Indexed: 12/20/2022]
Abstract
Double immunolabelling is a useful technique to determine cellular colocalization of proteins, but is prone to false-positive staining because of cross-reactivity between antibodies. In this study, we established a simple and quick method to demonstrate the immunofluorescent double labelling with two rabbit-derived polyclonal antibodies. The principle used was to establish a dilution of primary antibody for the first protein of interest, which would only be detectable following biotin-avidin amplification. Thereafter, the second protein of interest was assessed via standard secondary antibody detection, ensuring no cross-reactivity with the first protein antibody-antigen complex. We successfully demonstrated the three-dimensional colocalization of enterocytic apolipoprotein B, an equivocal marker of intestinal lipoproteins with Golgi apparatus. Colocalization of apo B and Golgi apparatus (75.2 +/- 8.5%) is consistent with the purported mode of secretion of these macromolecules.
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Affiliation(s)
- R Takechi
- Australian Technology Centre for Metabolic Fitness, School of Public Health, Division of Health Sciences, Curtin University of Technology, GPO Box U1987, Perth, WA, 6845, Australia
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Todd R, Stowe D, Galloway S, Barnes D, Wilshaw P. Piezospectroscopic measurement of the stress field around an indentation crack tip in ruby using SEM cathodoluminescence. Ann Ital Chir 2008. [DOI: 10.1016/j.jeurceramsoc.2008.02.008] [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: 10/22/2022]
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Mamo J, Galloway S, Parabellage M, Jian L, Johnsen R, Chew S, Takechi R, James A. PO11-312 IS BETA-AMYLOID, THE PRIMARY PROTEIN IN SENILE PLAQUES OF SUBJECTS WITH ALZHEIMER'S DISEASE A REGULATING APOLIPOPROTEIN? ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71322-3] [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: 10/23/2022]
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Berry C, Murphy NF, Murphy N, De Vito G, Galloway S, Seed A, Fisher C, Sattar N, Vallance P, Hillis WS, McMurray J. Effects of aldosterone receptor blockade in patients with mild-moderate heart failure taking a beta-blocker. Eur J Heart Fail 2007; 9:429-34. [PMID: 17126073 DOI: 10.1016/j.ejheart.2006.10.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [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] [Received: 05/30/2006] [Revised: 08/21/2006] [Accepted: 10/05/2006] [Indexed: 11/23/2022] Open
Abstract
AIMS Spironolactone improves prognosis in severe heart failure (HF). We investigated its effects in patients with mild-moderate HF treated with an ACE inhibitor and beta-blocker. METHODS AND RESULTS Randomised, double-blind, parallel-group, 3-month comparison of placebo and spironolactone (25 mg daily) in 40 patients in New York Heart Association (NYHA) class I (20%), II (70%) or III (10%), with a left ventricular ejection fraction of <40%. The mean (standard error) changes from baseline in the spironolactone and placebo groups were, respectively: i) B-type natriuretic peptide (BNP) -53.4(22.2) pg/mL and +3.3(12.1) pg/mL, P=0.04, ii) pro-collagen type III N-terminal amino peptide (PIIINP) -0.6(0.2) micromol/L and +0.02(0.2) micromol/L, P=0.02 and iii) creatinine +10.7(3.2) micromol/L and -0.3(2.6) micromol/L, P=0.01. Compared with placebo, spironolactone therapy was associated with a reduction in self-reported health-related quality of life: change in visual analog score: -6 (3) vs. +6 (4); P=0.01. No differences were observed on other biochemical, neurohumoral, exercise and autonomic function assessments. CONCLUSION In patients with mild-moderate HF, spironolactone reduced neurohumoral activation (BNP) and a marker of collagen turnover (PIIINP) but impaired renal function and quality of life. The benefit-risk ratio of aldosterone blockade in mild HF is uncertain and requires clarification in a large randomised trial.
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Affiliation(s)
- Colin Berry
- Department of Cardiology, Western Infirmary, and Department of Applied Physiology, University of Strathclyde, Glasgow, UK
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Thybaud V, Aardema M, Clements J, Dearfield K, Galloway S, Hayashi M, Jacobson-Kram D, Kirkland D, MacGregor JT, Marzin D, Ohyama W, Schuler M, Suzuki H, Zeiger E. Strategy for genotoxicity testing: Hazard identification and risk assessment in relation to in vitro testing. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2007; 627:41-58. [PMID: 17126066 DOI: 10.1016/j.mrgentox.2006.10.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2006] [Revised: 07/31/2006] [Accepted: 08/14/2006] [Indexed: 11/20/2022]
Abstract
This report summarizes the proceedings of the September 9-10, 2005 meeting of the Expert Working Group on Hazard Identification and Risk Assessment in Relation to In Vitro Testing, part of an initiative on genetic toxicology. The objective of the Working Group was to develop recommendations for interpretation of results from tests commonly included in regulatory genetic toxicology test batteries, and to propose an appropriate strategy for follow-up testing when positive in vitro results were obtained in these assays. The Group noted the high frequency of positive in vitro findings in the genotoxicity test batteries with agents found not to be carcinogenic and thought not to pose a carcinogenic health hazard to humans. The Group agreed that a set of consensus principles for appropriate interpretation and follow-up testing when initial in vitro tests are positive was needed. Current differences in emphasis and policy among different regulatory agencies were recognized as a basis of this need. Using a consensus process among a balanced group of recognized international authorities from industry, government, and academia, it was agreed that a strategy based on these principles should include guidance on: (1) interpretation of initial results in the "core" test battery; (2) criteria for determining when follow-up testing is needed; (3) criteria for selecting appropriate follow-up tests; (4) definition of when the evidence is sufficient to define the mode of action and the relevance to human exposure; and (5) definition of approaches to evaluate the degree of health risk under conditions of exposure of the species of concern (generally the human). A framework for addressing these issues was discussed, and a general "decision tree" was developed that included criteria for assessing the need for further testing, selecting appropriate follow-up tests, and determining a sufficient weight of evidence to attribute a level of risk and stop testing. The discussion included case studies based on actual test results that illustrated common situations encountered, and consensus opinions were developed based on group analysis of these cases. The Working Group defined circumstances in which the pattern and magnitude of positive results was such that there was very low or no concern (e.g., non-reproducible or marginal responses), and no further testing would be needed. This included a discussion of the importance of the use of historical control data. The criteria for determining when follow-up testing is needed included factors, such as evidence of reproducibility, level of cytotoxicity at which an increased DNA damage or mutation frequency is observed, relationship of results to the historical control range of values, and total weight of evidence across assays. When the initial battery is negative, further testing might be required based on information from the published literature, structure activity considerations, or the potential for significant human metabolites not generated in the test systems. Additional testing might also be needed retrospectively when increase in tumors or evidence of pre-neoplastic change is seen. When follow-up testing is needed, it should be based on knowledge about the mode of action, based on reports in the literature or learned from the nature of the responses observed in the initial tests. The initial findings, and available information about the biochemical and pharmacological nature of the agent, are generally sufficient to conclude that the responses observed are consistent with certain molecular mechanisms and inconsistent with others. Follow-up tests should be sensitive to the types of genetic damage known to be capable of inducing the response observed initially. It was recognized that genotoxic events might arise from processes other than direct reactivity with DNA, that these mechanisms may have a non-linear, or threshold, dose-response relationship, and that in such cases it may be possible to determine an exposure level below which there is negligible concern about an effect due to human exposures. When a test result is clearly positive, consideration of relevance to human health includes whether other assays for the same endpoint support the results observed, whether the mode or mechanism of action is relevant to the human, and - most importantly - whether the effect observed is likely to occur in vivo at concentrations expected as a result of human exposure. Although general principles were agreed upon, time did not permit the development of recommendations for the selection of specific tests beyond those commonly employed in initial test batteries.
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Affiliation(s)
- V Thybaud
- Drug Safety Evaluation, Sanofi-aventis, 94400 Vitry sur Seine, France.
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Rozen WM, Galloway S, Salinas C, Allen P, Schlicht S, Mann GB. Fasciitis ossificans with a radial neuropathy: a benign differential diagnosis for soft tissue sarcoma. J Clin Neurosci 2007; 14:391-4. [PMID: 17240146 DOI: 10.1016/j.jocn.2006.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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: 12/06/2005] [Revised: 12/31/2005] [Accepted: 01/04/2006] [Indexed: 10/23/2022]
Abstract
A soft tissue mass with an associated neuropathy suggests a malignancy with nerve compression or infiltration. However, there are benign diagnoses to consider. We report a case of an axillary mass with a radial nerve neuropathy, initially suspected to be a soft tissue sarcoma. The final diagnosis was fasciitis ossificans. This is the first such reported case. The presence of severe pain and tenderness suggested an inflammatory process. Fasciitis ossificans is a rare form of heterotopic bone formation, commonly presenting with signs of local inflammation or pain.
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Affiliation(s)
- W M Rozen
- Department of Surgery, The Royal Melbourne Hospital, University of Melbourne, Grattan Street, Parkville, Victoria 3050, Australia.
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Abstract
The demand for insertion of long-term central venous (Hickman type) catheters is thought to be increasing. Organisation is required to meet this demand in a safe and efficient manner. This report reviews the results from a dedicated, anaesthetic led vascular access list over the initial 61-month period. One thousand procedures were performed. Nine hundred and twenty catheters were inserted under local anaesthesia, with or without intravenous sedation and analgesia. Eighty catheters were removed. All procedures were performed during a dedicated once weekly, morning list. A total of 53% of all procedures were performed on a day-case basis, 43% on in-patients. Only 1.5% of patients required an unexpected overnight stay (usually medically unfit patients). There were 81 (9%) cancellations on the day of procedure due to neutropaenia, pneumonia or urinary tract infections. Ultrasound guidance was used initially selectively in 14%, latterly in 100% of procedures and fluoroscopy in all insertions to confirm or adjust catheter position. This service has been well received by patients and oncology services. In addition it provides an interesting area of practice for anaesthetists and an ideal environment for teaching more advanced aspects of central venous access. It may provide a template of service for other centres.
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Affiliation(s)
- S Galloway
- Department of Anaesthesia, The General Infirmary at Leeds, Great George Street, Leeds LS1 3EZ, UK
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Abstract
BACKGROUND The central veins that are usually cannulated are the jugular, subclavian, femoral and brachial. If subclavian catheterization is difficult using surface landmark techniques, we now use ultrasound to catheterize the infraclavicular axillary vein. This approach is not widely used and the ultrasound appearance has not been formally described. We examined the anatomical relationships of the axillary vessels to guide safe cannulation of the axillary vein. METHOD In 50 subjects, we used ultrasound to examine the infraclavicular regions from below the mid-clavicular point and at 2 cm and 4 cm further laterally (described as the middle and lateral points) with the arms at 0 degrees, 45 degrees and at 90 degrees abduction. We took measurements at each point, with the artery and vein seen in cross-section. The depth from the skin, vessel diameters and the distance between the vessels was measured. The amount of overlap was scaled from 0 (no overlap) to 3 (complete overlap). We also recorded (if visible) the distance between the rib cage and axillary vein. A longitudinal image of the vein was also obtained. Angle of ascent (in relation to the skin), length and depth of the vein was measured. RESULTS Axillary vessels were seen in 93% of images. The mean depth from skin to vein increased from 1.9 cm (range 0.7-3.7 cm) medially to 3.1 cm (1.1-5.6 cm) laterally. The venous diameter decreased from 1.2 cm (0.3-2.1 cm) medially to 0.9 cm (0.4-1.6 cm) laterally. The arterio-venous distance increased from 0.3 cm to 0.8 cm. Median arterio-venous overlap decreased from 2/3 (mode 3/3) to 0 (0). The distance from rib cage to vein increased from 1.0 cm to 2.0 cm. CONCLUSION The axillary vein is an alternative for central venous cannulation and we present an anatomical rationale for its safe use. Less arterio-venous overlap and a greater distance between artery and vein and from vein to rib cage should provide an increased margin of safety for central venous cannulation.
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Affiliation(s)
- S Galloway
- Department of Anaesthesia, Leeds General Infirmary, Great George Street, UK
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Abstract
We present a case of preeclampsia complicated by HELLP (haemolysis, elevated liver enzymes and low platelets) syndrome and marked coagulopathy. The severity of the coagulopathy and haemolysis made renal failure and pulmonary oedema inevitable. We identified a number of discussion points in this case. These were the delay to appreciate the haemolysis, the severity of the haemolysis and its interaction with the treatment of coagulopathy and the conservative management of pulmonary oedema. At these points there were shortcomings in our management of this complex case that merit further discussion.
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Affiliation(s)
- S Galloway
- Department of Anaesthesia, St James's University Hospital, Leeds, UK.
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Galloway S. Flow Cytometric Analysis of Hematologic Neoplasms. Pathology 2003. [DOI: 10.1016/s0031-3025(16)34349-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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