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Mathew J, Zahavich L, Lafreniere-Roula M, Wilson J, George K, Benson L, Bowdin S, Mital S. Utility of genetics for risk stratification in pediatric hypertrophic cardiomyopathy. Clin Genet 2017; 93:310-319. [DOI: 10.1111/cge.13157] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/17/2017] [Accepted: 09/27/2017] [Indexed: 12/29/2022]
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Iacovides S, George K, Kamerman P, Baker F. Sleep fragmentation hypersensitizes healthy young women to deep and superficial experimental pain. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pareek V, Bhalavat R, Chandra M, George K, Nellore L, Borade D, Kalariya K, Moosa Z, Reddy N, Srivastava A. Analysis of Newer Treatment Techniques in Clinical Outcomes of High Grade Glioma: Volumetric Arc Therapy Versus Intensity Modulated Radiation Therapy Versus 3D Conformal Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ouellette A, Mathew J, Manickaraj A, Manase G, Zahavich L, Wilson J, George K, Benson L, Bowdin S, Mital S. Clinical genetic testing in pediatric cardiomyopathy: Is bigger better? Clin Genet 2017; 93:33-40. [DOI: 10.1111/cge.13024] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/06/2017] [Accepted: 03/14/2017] [Indexed: 12/20/2022]
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Bartolacci C, Padanad M, Andreani C, Melegari M, Rindhe S, George K, Frankel A, McDonald J, Scaglioni P. Fatty Acid Synthase Is a Therapeutic Target in Mutant KRAS Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.06.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Woolley EJ, Dhariwal DK, Witherow H, Newlands C, George K. We are not alone. Br Dent J 2016; 221:685. [DOI: 10.1038/sj.bdj.2016.888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Paul P, Kuriakose T, John J, Raju R, George K, Amritanand A, Doss PA, Muliyil J. Prevalence and Visual Outcomes of Cataract Surgery in Rural South India: A Cross-Sectional Study. Ophthalmic Epidemiol 2016; 23:309-15. [PMID: 27552313 DOI: 10.1080/09286586.2016.1212991] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE To determine the prevalence of cataract surgery and postoperative vision-related outcomes, especially with respect to sex, socioeconomic status (SES) and site of first contact with eye care, in a rural area of South India. METHODS In a population-based cross-sectional survey of 5530 individuals aged 50 years or older from 10 villages selected by cluster sampling, individuals who had undergone cataract surgery in one or both eyes were identified. Consenting participants were administered a questionnaire, underwent vision assessment and ophthalmic examination. Outcomes were classified as good if visual acuity of the operated eye was 6/18 or better, fair if worse than 6/18 but better than or equal to 6/60, and poor if worse than 6/60. RESULTS Prevalence of cataract surgery in this age group (771 persons) was 13.9% (95% confidence interval, CI, 13.0-14.9%). In the 1112 eyes of 749 persons studied, at presentation, 53.1% (95% CI 50.1-56.1%) of operated eyes had good, 38.1% (95% CI 35.2-41.0%) had fair, and 8.8% (95% CI 7.1-10.5%) had poor outcomes. With pinhole, 75.2% (95% CI 72.6-77.8%) had good, 17.2% (95% CI 14.9-19.5%) had fair, and 7.4% (95% CI 5.8-9.0%) had poor outcomes. In 76.3% of eyes with fair and poor presenting outcomes we detected an avoidable cause for the suboptimal visual acuity. Place of surgery and duration since surgery of 3 years or more were risk factors for blindness, while SES, sex and site of first eye care contact were not. CONCLUSION The high prevalence of avoidable causes of visual impairment in this rural setting indicates the scope for preventive strategies.
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Cocking S, Landman T, Benson M, Lord R, Jones H, Gaze D, Thijssen DHJ, George K. The impact of remote ischemic preconditioning on cardiac biomarker and functional response to endurance exercise. Scand J Med Sci Sports 2016; 27:1061-1069. [PMID: 27430157 DOI: 10.1111/sms.12724] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2016] [Indexed: 01/05/2023]
Abstract
Remote ischemic preconditioning (RIPC; repeated short reversible periods of ischemia) protects the heart against subsequent ischemic injury. We explored whether RIPC can attenuate post-exercise changes in cardiac troponin T (cTnT) and cardiac function in healthy individuals. In a randomized, crossover design, 14 participants completed 1-h cycling time trials (TT) on two separate visits; preceded by RIPC (arms/legs, 4 × 5-min 220 mmHg), or SHAM-RIPC (20 mmHg). Venous blood was sampled before and 0-, 1-, and 3-h post-exercise to assess high sensitivity (hs-)cTnT and brain natriuretic peptide (NT-proBNP). Echocardiograms were performed at the same time points to assess left and right ventricular systolic (ejection fraction; EF and right ventricular fractional area change; RVFAC, respectively) and diastolic (early transmitral flow velocities; E) function. Baseline hs-cTnT was not different between RIPC and SHAM. Post-exercise hs-cTnT levels were consistently lower following RIPC (18 ± 3 vs 21 ± 3; 19 ± 3 vs 23 ± 3; and 20 ± 2 vs 25 ± 2 ng/L at 0, 1 and 3-h post-exercise, respectively; P < 0.05). There was no main effect of time, trial, or interaction for NT-proBNP and left ventricular EF or RVFAC (all P < 0.05). A main effect of time was evident for E which transiently declined immediately after exercise to a similar level in both trials (0.85 ± 0.04 vs 0.74 ± 0.04 m/s, respectively; P < 0.05). In summary, RIPC was associated with lower hs-cTnT levels after exercise but there was no independent effect of RIPC for NT-proBNP or LV systolic and diastolic function. The lower hs-cTnT levels after RIPC suggests that further research should evaluate the role of ischemia in exercise-induced elevation in hs-cTnT.
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Dengu F, Sanalla A, Fan K, George K. “Enough is enough”: antibiotic prophylaxis in facial fractures; experience from a Major Trauma Centre. Br J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.bjoms.2015.08.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ryba F, Burgess R, Kalia A, Sanalla A, George K. Core biopsies reduces the need for open lymph node biopsies. Br J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.bjoms.2015.08.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ahmed N, Olding J, George K, Fan K. Osteomyelitis of the head and neck. Br J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.bjoms.2015.08.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Olding J, Ahmed N, George K, Fan K. Osteomyelitis of the head and neck. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kathuria K, Jambhekar NA, Pramesh CS, George K, Desai SS. A clinicopathologic analysis of 88 lung resections of suspected metastatic carcinomas with proven primaries. Indian J Cancer 2015; 50:356-60. [PMID: 24369217 DOI: 10.4103/0019-509x.123628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The lung is the most common site for metastatic carcinomas. Very few studies have comprehensively analyzed all pulmonary resections for metastatic carcinomas. AIMS AND OBJECTIVES To analyze all lung resections for suspected metastatic carcinomas accrued over 10 years to evaluate: (i). The most frequent primary site,(ii). The interval between primary tumor diagnosis and lung metastases, and (iii). The proportion of inadvertently resected benign lesions, clinicoradiologically mistaken for metastatic deposits. MATERIALS AND METHODS Between 2002 and 2011, 88 pulmonary metastasectomies were done for suspected metastatic carcinomas, which form the basis of this study. RESULTS In 81 of 88 cases (92%) the diagnosis of metastatic carcinoma was histologically confirmed, whereas 7 cases (8%) were non-neoplastic. The mean interval between primary tumor and metastases was 2.5 years. The primary sites were colorectum (30; 37%), kidney and breast (14; 17.3% each), cervix (9; 10%), salivary gland carcinoma (3), thyroid carcinoma (2), squamous carcinoma (2, one each of mandible and larynx), papillary urothelial carcinoma (2), hepatocellular carcinoma (1), endometrioid adenocarcinoma (1), carcinosarcoma of endometrium (1), adrenocortical carcinoma (1), and neuroendocrine carcinoma (1). The 7 non-neoplastic lesions (8%) histologically revealed tuberculosis (4), bronchopneumonia (2), and aspergillosis (1). CONCLUSIONS Almost three fourths (71.6%) of the metastatic pulmonary resections comprised primaries from colorectum, breast and kidney. The interval between primary tumor and metastases ranged from zero months to 10 years (mean 2.5 years). Tuberculosis was the most common histologic diagnosis among the 8% of the non-neoplastic lesions, which were mistaken for metastatic carcinoma on clinical evaluation.
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Unnithan VB, Rowland T, George K, Lindley MR, Roche DM. Regional and global left ventricular function following a simulated 5 km race in sports-trained adolescents. Pediatr Cardiol 2015; 36:322-8. [PMID: 25150842 DOI: 10.1007/s00246-014-1006-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 08/07/2014] [Indexed: 11/29/2022]
Abstract
The effects of a short, high-intensity bout of exercise on cardiac systolic and diastolic function are not well understood in adolescent athletes. Consequently, the aims of the study were to evaluate global left ventricular (LV) systolic and diastolic function, as well as segmental wall motion responses (cardiac strain), prior to as well as 45 and 225 min following a simulated 5 km cross-country race. Twenty trained, adolescent males (age: 15.2 ± 0.7 years) volunteered for exercise testing. LV fractional shortening and the ratio of early (E) and late (A) peak flow velocities reflected global systolic and diastolic function, respectively. Peak longitudinal mitral annular septal tissue velocities were also determined during systole and diastole. Longitudinal strain (ε) and strain rates were determined across the LV. LV fractional shortening was significantly (P < 0.05) higher at 225 min post-race (37.6 ± 5.8%) compared to pre-race (34.5 ± 4.7%) and 45 min post-race (34.9 ± 5.4 %). This difference was abolished after adjusting for post-race heart rates. There was a significant (P < 0.05) decrease in the E:A ratio at both 45 min (2.04 ± 0.57) and 225 min post-race (2.20 ± 0.66) compared to the pre-race value (2.80 ± 0.68). When these data were adjusted for post-race heart rates, these pre-post-race differences in E:A ratio were abolished. There were no significant alterations in either tissue Doppler velocities or longitudinal ε. The evidence suggests that a 5 km race does not lead to any significant post-exercise attenuation in global or regional LV systolic and diastolic function in trained adolescents.
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George K, Brice H, Fowler S, Holmes L, Daly R, Niven R. P53 Manchester Desert Island Question. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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George K, Brice H, Fowler S, Holmes L, Daly R, Niven R. P237 A Review Of The Steroid Sparing Impact Of Mycophenolate Mofetil In The Severe Asthma Population At The North West Lung Centre, University Hospital South Manchester. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Utomi VS, Oxborough D, Whyte G, Somauroo J, George K. P753A comprehensive technical assessment of the Athlete's Heart: "The Morganroth Hypothesis" re-visited. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu098.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Iga J, Scott M, George K, Drust B. Seasonal changes in multiple indices of body composition in professional football players. Int J Sports Med 2014; 35:994-8. [PMID: 24816888 DOI: 10.1055/s-0034-1371833] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
We examined the seasonal variability of indicators of adiposity and generic and population-specific equations of estimating body fat in professional football players. Anthropometric data of 35 outfield players (age, 20±4 years; stature, 1.82±0.06 m; body mass 77.1±7.3 kg) were collected over a playing season. There were a significant main effects for time for all indicators (p<0.001). Post hoc analysis revealed significant changes in body composition between July and mid-August (∑4SF-DW: 1.6 mm, p<0.001; ∑4SF-R: 2.4 mm, p=0.002; ∑5SF: 2.0 mm, p<0.002; ∑8SF: 3.8 mm, p=0.001; Reilly et al.: 0.4%, p=0.001; Durnin and Wormsley: 0.7%, p<0.001). Although all indicators were sensitive to detect small changes in body composition between training mesocycles, we advocate the use of the sum of 4 skinfolds by Reilly et al. to monitor changes in body composition in professional football players; if an estimate of percent body fat is required, the population-specific equation by Reilly et al. may be utilised.
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Mallet A, Kypriotou M, George K, Leclerc E, Rivero D, Mazereeuw-Hautier J, Serre G, Huber M, Jonca N, Hohl D. Identification of the first nonsenseCDSNmutation with expression of a truncated protein causing peeling skin syndrome type B. Br J Dermatol 2013; 169:1322-5. [DOI: 10.1111/bjd.12593] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/13/2013] [Indexed: 02/04/2023]
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Spence A, Batterham A, George K, Green D. Impact of lean body mass on exercise training-induced ventricular adaptation: Evidence for genuine cardiac hypertrophy? J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wilson C, Allan DA, Coles SJ, George K, Levason W, Reid G, Zhang W. Variable-pressure single-crystal diffraction study of [Ge X2{ o-C 6H 4(PMe 2) 2}], X= Cl, Br, I. Acta Crystallogr A 2013. [DOI: 10.1107/s0108767313094683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Leslie R, George K, Buckley JP. 020 EFFICACY OF A 2 MIN VERSUS A FULL 6 MIN PRACTICE WALK BEFORE A 6 MIN WALK TEST IN HEART FAILURE PATIENTS:. BRITISH HEART JOURNAL 2013. [DOI: 10.1136/heartjnl-2013-304019.20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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George K, Rhone J, Beitman A, Cucinotta FA. Cytogenetic damage in the blood lymphocytes of astronauts: effects of repeat long-duration space missions. Mutat Res 2013; 756:165-9. [PMID: 23639573 DOI: 10.1016/j.mrgentox.2013.04.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 04/13/2013] [Indexed: 11/29/2022]
Abstract
Human missions onboard the International Space Station (ISS) are increasing in duration and several astronauts have now participated in second ISS increments. The radiation environment in space is very different from terrestrial radiation exposure and it is still unclear if space flight effects and radiation from repeat missions are simply additive, which potentially confounds the assessment of the cumulative risk of radiation exposure. It has been shown that single space missions of a few months or more on the ISS can induce measureable increases in the yield of chromosome damage in the blood lymphocytes of astronauts, and it appears that cytogenetic biodosimetry can be used reliably to estimate equivalent dose and radiation risk. We have now obtained direct in vivo measurements of chromosome damage in blood lymphocytes of five astronauts before and after their first and second long duration space flights. Chromosome damage was assessed by fluorescence in situ hybridization technique using three different chromosome painting probes. All astronauts showed an increase in total exchanges and translocations after both the first and second flight. Biological dose measured using either individual assessment or a population assessment supports an additive risk model.
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Chan-Dewar F, Gregson W, Whyte G, Gaze D, Waterhouse J, Wen J, George K. Do the effects of high intensity 40 km cycling upon left ventricular function and cardiac biomarker during recovery vary with time of day? J Sports Sci 2013; 31:414-23. [DOI: 10.1080/02640414.2012.735369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Vigilante T, Toohey J, Gorring A, Blundell V, Saunders T, Mangolamara S, George K, Oobagooma J, Waina M, Morgan K, Doohan K. Island country: Aboriginal connections, values and knowledge of the Western Australian Kimberley islands in the context of an island biological survey. ACTA ACUST UNITED AC 2013. [DOI: 10.18195/issn.0313-122x.81.2013.145-182] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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