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Bossley M, Steiner A, Brakes P, Shrimpton J, Foster C, Rendell L. Tail walking in a bottlenose dolphin community: the rise and fall of an arbitrary cultural 'fad'. Biol Lett 2018; 14:rsbl.2018.0314. [PMID: 30185606 DOI: 10.1098/rsbl.2018.0314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/06/2018] [Indexed: 11/12/2022] Open
Abstract
Social learning of adaptive behaviour is widespread in animal populations, but the spread of arbitrary behaviours is less common. In this paper, we describe the rise and fall of a behaviour called tail walking, where a dolphin forces the majority of its body vertically out of the water and maintains the position by vigourously pumping its tail, in a community of Indo-Pacific bottlenose dolphins (Tursiops aduncus). The behaviour was introduced into the wild following the rehabilitation of a wild female individual, Billie, who was temporarily co-housed with trained dolphins in a dolphinarium. This individual was sighted performing the behaviour seven years after her 1988 release, as was one other female dolphin named Wave. Initial production of the behaviour was rare, but following Billie's death two decades after her release, Wave began producing the behaviour at much higher rates, and several other dolphins in the community were subsequently sighted performing the behaviour. Social learning is the most likely mechanism for the introduction and spread of this unusual behaviour, which has no known adaptive function. These observations demonstrate the potential strength of the capacity for spontaneous imitation in bottlenose dolphins, and help explain the origin and spread of foraging specializations observed in multiple populations of this genus.
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Seers T, Vassallo P, Pollock K, Thornhill JP, Fidler S, Foster C. CD4:CD8 ratio in children with perinatally acquired HIV-1 infection. HIV Med 2018; 19:668-672. [PMID: 30084150 PMCID: PMC6221101 DOI: 10.1111/hiv.12642] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2018] [Indexed: 11/30/2022]
Abstract
Objectives In adults with horizontally acquired HIV infection, an inverted CD4:CD8 ratio is associated with persistent immune activation, size of HIV reservoir and predicts an increased risk of non‐AIDS‐defining adverse events. Normalization of this ratio with antiretroviral therapy (ART) is suboptimal in adults, despite viral suppression, and is less well described in paediatric populations. We investigated rates of CD4:CD8 ratio recovery in children with perinatally acquired HIV infection (PaHIV) on ART. Methods A cross‐sectional, retrospective analysis of routine clinical data in children with PaHIV (5–18 years old) attending a single UK centre was carried out. Results CD4:CD8 normalization was seen in 62% of children on suppressive ART. A negative correlation was found between current CD4:CD8 ratio and age at start of ART. Positive correlations were found between current CD4:CD8 ratio and total time with suppressed HIV viral load and nadir CD4 counts. Multiple linear regression analysis showed that age at start of ART was significantly associated with current CD4:CD8 ratio (standardized β = −0.680; P < 0.001). Patient sex, ethnicity and antiretroviral regimen did not affect ratio recovery. Conclusions We found higher rates of CD4:CD8 ratio normalization compared with previous adult studies. Children who started ART at a younger age were more likely to recover a normal ratio. The current policy of universal treatment for all HIV‐positive adults and children will enhance immunological normalization.
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Love R, Adams J, van Sluijs EMF, Foster C, Humphreys D. A cumulative meta-analysis of the effects of individual physical activity interventions targeting healthy adults. Obes Rev 2018; 19:1164-1172. [PMID: 29701299 PMCID: PMC6099338 DOI: 10.1111/obr.12690] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/22/2018] [Accepted: 02/13/2018] [Indexed: 01/22/2023]
Abstract
Despite a large and increasing evidence base on physical activity interventions, the high rates of physical inactivity and associated chronic diseases are continuing to increase globally. The purpose of this cumulative meta-analysis was to investigate the evolution of randomized controlled trial evidence of individual-level physical activity interventions to asses if new trials are contributing novel evidence to the field. Through a two-staged search process, primary studies examining the effects of interventions targeted at increasing physical activity within healthy adult populations were pooled and selected from eligible systematic reviews. Cumulative meta-analyses were performed on effect sizes immediately post-intervention (n = 62), and for long-term behaviour change (≥12-month post-baseline; n = 27). Sufficiency and stability of the evidence was assessed through application of pre-published indicators. Meta-analyses suggest overall positive intervention effects on physical activity. The evidence base for effectiveness immediately post-intervention reached levels of sufficiency and stability in 2007; and for long-term follow-up in 2011. In the time since, intervention effectiveness has not substantially changed, and further trials are unlikely to change the direction and magnitude of effect. Substantial evidence exists demonstrating that physical activity interventions can modify individual behaviour in controlled settings. Researchers are urged to shift focus towards investigating the optimization, implementation, sustainability and cost-effectiveness of interventions.
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Foster C, Fidler S, Lyall EGH, Taylor GPT. Careful consideration when responding to new data: dolutegravir and pregnancy. J Virus Erad 2018; 4:208. [PMID: 30050687 PMCID: PMC6038127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This case highlights the current complexities of managing women in the early stages of pregnancy presenting on dolutegravir-based regimens. When responding to new data, there is an important decision to be made, between the potential, uncertain risk of teratogenicity against the potential increased risk of in utero vertical transmission of HIV-1.
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Park HG, Zhang JY, Foster C, Sudilovsky D, Schwed DA, Mecenas J, Devapatla S, Lawrence P, Kothapalli KSD, Brenna JT. A rare eicosanoid precursor analogue, sciadonic acid (5Z,11Z,14Z-20:3), detected in vivo in hormone positive breast cancer tissue. Prostaglandins Leukot Essent Fatty Acids 2018; 134:1-6. [PMID: 29886893 PMCID: PMC5999340 DOI: 10.1016/j.plefa.2018.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/10/2018] [Accepted: 05/10/2018] [Indexed: 02/06/2023]
Abstract
Numerous genetic alterations of HSA 11q13 are found frequently in several cancer types, including breast cancer (BC). The 11q13 locus harbors FADS2 encoding Δ6 desaturation which is not functional in several cancer cell lines, including hormone positive MCF7 BC cells. In vitro, the non-functional FADS2 activity unmasks 18:2n-6 elongation to 20:2n-6 and Δ5 desaturation by FADS1 to yield 5Z,11Z,14Z-20:3 (sciadonic acid) rather than 5Z,8Z,11Z,14Z-20:4 (arachidonic acid). In this pilot study we aimed to determine whether 5,11,14-20:3 appears in vivo in hormone positive human BC tissue. Fatty acids were profiled in surgically removed human breast tumor and adjacent normal tissue (n = 9). Sciadonic acid was detected in three of nine breast tumor samples and was below detect limits in normal breast tissue. The internal Δ8 double bond of arachidonic acid is required for normal eicosanoid synthesis but is missing in sciadonic acid. This pilot study demonstrates for the first time in vivo sciadonic acid in hormone positive BC tissue, warranting a larger survey study to further evaluate its appearance and the functional implications.
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Steventon JJ, Collett J, Furby H, Hamana K, Foster C, O'Callaghan P, Dennis A, Armstrong R, Németh AH, Rosser AE, Murphy K, Quinn L, Busse M, Dawes H. Alterations in the metabolic and cardiorespiratory response to exercise in Huntington's Disease. Parkinsonism Relat Disord 2018; 54:56-61. [PMID: 29705557 DOI: 10.1016/j.parkreldis.2018.04.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/04/2018] [Accepted: 04/12/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND Limited data suggests that an altered metabolic and cardiorespiratory exercise response may affect exercise performance in individuals with Huntington's disease (HD). There is no clear exploration of the response in individuals at different stages of the disease or in relation to genetic markers. This study aimed to examine the exercise response and recovery of HD participants, and the relationship to genetic and clinical markers. METHOD HD gene-positive participants (n = 31; 9 pre-manifest; 22 manifest HD) and a healthy control group (n = 29) performed an incremental exercise test until exhaustion. Performance, cardiorespiratory, metabolic and perceptual responses to exercise were determined from a maximal cycle ergometer test throughout the exercise test and during a recovery period. RESULTS During sub-maximal exercise, metabolic (lactate levels, oxygen uptake) and cardiorespiratory markers (heart rate) were elevated in HD participants compared to controls. Lactate elevation was specific to pre-manifest HD participants. Work capacity was reduced in both pre-manifest and manifest HD participants with tests terminated with no difference in metabolic, perceptual or cardiorespiratory markers. Submaximal oxygen uptake was correlated with motor score, whilst peak measures were unrelated to genetic or clinical markers. Heart rate recovery was attenuated in pre-manifest and manifest HD participants. CONCLUSIONS Our findings confirm metabolic and cardiorespiratory deficits reduce exercise performance and affect recovery from an early stage in HD, with submaximal deficits related to phenotypic expression. Exercise capacity appears to be limited by an altered movement economy, thus clinicians should consider an altered exercise response and recovery may affect prescription in HD.
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Schmidt F, Ribi Brega K, Haslbeck J, Urech C, Holm K, Risendal B, Foster C, Fenlon D, Eicher M. CO-creating and adapting a self-management program for breast cancer Survivors integrated in the clinical pathway of breast centers in Switzerland (COSS pilot study). Eur J Cancer 2018. [DOI: 10.1016/s0959-8049(18)30338-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Foster C, Moore JB, Singletary CR, Skelton JA. Physical activity and family-based obesity treatment: a review of expert recommendations on physical activity in youth. Clin Obes 2018; 8:68-79. [PMID: 29224232 DOI: 10.1111/cob.12230] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/13/2017] [Accepted: 10/02/2017] [Indexed: 12/21/2022]
Abstract
Targeting physical inactivity in children is pertinent to aiding in the decrease of childhood obesity rates. Only 33% of adolescents are obtaining the recommended goal of at least 60 min of physical activity per day. The objectives of this review are to summarize professional recommendations for physical activity and exercise in children and adolescents, and identify family-centred strategies that can be implemented by weight management clinicians. Clinically oriented recommendations and policy statements from professional organizations were identified through literature and internet searches, summarized using rubrics of aerobic, muscle strengthening and bone strengthening exercise, then examined for details on family-based focus, inclusion of child developmental stage and age, and application to the prevention and treatment of obesity. Current recommendations give guidelines for the amount of physical activity that children should acquire and how many days a week activities should occur. However, available guidelines need an improved approach to addressing the role of the parents and caregivers in targeting physical activity and weight management in youth. Efforts must be taken in order to make sure that the types of physical activity offered are both suitable and enjoyable. Sports, games, free play and other age appropriate activities are adequate ways to increase moderate to vigorous physical activity in children. Differentiating physical activities types in accordance with developmental stage, level of enjoyment, and family characteristics is needed to establish sustainable habits. One paediatric obesity program has developed approaches to teaching families fun and engaging ways to be active together.
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Zangari P, Palma P, Cotugno N, Rojo P, Tagarro A, Pepponi I, De Rossi A, Kuhn L, Pahwa S, Cameron M, Nastouli E, Watters S, Marceline AG, McCoy LE, Persaud D, Violari A, Chan M, Babiker AG, Foster C, Ananworanich J, Giaquinto C, Rossi P. Report from the First EPIICAL (Early-treated Perinatally HIV-infected Individuals: Improving Children's Actual Life with Novel Immunotherapeutic Strategies) General Assembly meeting, 9-11 November 2017, Rome, Italy. J Virus Erad 2018; 4:51-54. [PMID: 29568555 PMCID: PMC5851186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Zangari P, Palma P, Cotugno N, Rojo P, Tagarro A, Pepponi I, De Rossi A, Kuhn L, Pahwa S, Cameron M, Nastouli E, Watters S, Marceline A, McCoy L, Persaud D, Violari A, Chan M, Babiker A, Foster C, Ananworanich J, Giaquinto C, Rossi P. Report from the First EPIICAL (Early-treated Perinatally HIV-infected Individuals: Improving Children's Actual Life with Novel Immunotherapeutic Strategies) General Assembly meeting, 9–11 November 2017, Rome, Italy. J Virus Erad 2018. [DOI: 10.1016/s2055-6640(20)30240-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Lowe CM, Milton K, Kelly P, Foster C, Barker K. “Walk30X5”: the development and feasibility evaluation of a physiotherapy walking programme for people with mild to moderate musculoskeletal conditions. Physiotherapy 2017. [DOI: 10.1016/j.physio.2017.11.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Caruso P, Buch K, Rincon S, Hakimelahi R, Peacock ZS, Resnick CM, Foster C, Guidoboni L, Donahue T, Macdonald R, Rothermel H, Curtin HD, Kaban LB. Optimization of Quantitative Dynamic Postgadolinium MRI Technique Using Normalized Ratios for the Evaluation of Temporomandibular Joint Synovitis in Patients with Juvenile Idiopathic Arthritis. AJNR Am J Neuroradiol 2017; 38:2344-2350. [PMID: 29170273 DOI: 10.3174/ajnr.a5424] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 07/16/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND PURPOSE MR imaging has been shown to be useful in the diagnosis of juvenile idiopathic arthritis of the temporomandibular joint. Prior MR imaging approaches have relied mainly on the subjective interpretation of synovial enhancement as a marker for synovial inflammation. Although, more recently, several attempts have been made to quantify synovial enhancement, these methods have not taken into account the dynamic enhancement characteristics of the temporomandibular joint and the effect of sampling time. Our aim was to develop a clinically feasible, reproducible, dynamic, contrast-enhanced MR imaging technique for the quantitative assessment of temporomandibular joint synovitis in patients with juvenile idiopathic arthritis and to study the effect of sampling time on the evaluation of synovitis. MATERIALS AND METHODS This was a retrospective study of all patients who had dynamic, contrast-enhanced coronal T1 3T MR imaging through the temporomandibular joint at our institution between January 1, 2015, and July 8, 2016. Patients in this cohort included those with a history of juvenile idiopathic arthritis and control patients who underwent MR imaging for other routine, clinical purposes. Synovial enhancement was calculated for each temporomandibular joint using 3 different types of equations termed normalization ratios. The enhancement profiles generated by each equation were studied to determine which provided the best discrimination between affected and unaffected joints, was the least susceptible to sampling errors, and was the most clinically feasible. RESULTS A ratio of synovial enhancement (defined as the difference between the postgadolinium and the pregadolinium T1 signal of the synovium) to the postgadolinium signal of the longus capitis provided the best discrimination between affected and unaffected joints, the least susceptibility to sampling error, and was thought to be the most clinically feasible method of quantification of synovial inflammation. Additional synovial enhancement ratios studied did not provide the same level rates of discrimination between the affected and unaffected joints and were thought to be too temporally variable to provide reliable clinical use. CONCLUSIONS We provide a robust, reproducible, dynamic gadolinium-enhanced MR imaging technique for the quantitative assessment of temporomandibular joint synovitis in patients with juvenile idiopathic arthritis.
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Graff HJ, Moyher RE, Bair J, Foster C, Gorden ME, Clem J. Relationships and Sexuality: How is a Young Adult with an Intellectual Disability Supposed to Navigate? SEXUALITY AND DISABILITY 2017. [DOI: 10.1007/s11195-017-9499-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Stocco F, Evaristo E, Shah N, Cheezum M, Hainer J, Foster C, Nearing B, Gervino E, Di Carli M, Verrier R. P5523Marked exercise-induced T-wave heterogeneity in diabetic patients with non-flow limiting coronary artery stenosis and impaired coronary flow reserve. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5523] [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: 11/13/2022] Open
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Evaristo E, Stocco F, Shah N, Cheezum M, Hainer J, Foster C, Nearing B, Di Carli M, Verrier R. P4459Ranolazine reduces repolarization heterogeneity in symptomatic patients with diabetes, non-obstructive coronary artery disease, and impaired coronary flow reserve. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4459] [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: 11/13/2022] Open
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Gates LS, Leyland KM, Sheard S, Jackson K, Kelly P, Callahan LF, Pate R, Roos EM, Ainsworth B, Cooper C, Foster C, Newton JL, Batt ME, Arden NK. Physical activity and osteoarthritis: a consensus study to harmonise self-reporting methods of physical activity across international cohorts. Rheumatol Int 2017; 37:469-478. [PMID: 28238075 PMCID: PMC5357277 DOI: 10.1007/s00296-017-3672-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 02/02/2017] [Indexed: 01/03/2023]
Abstract
Physical activity (PA) is increasingly recognised as an important factor within studies of osteoarthritis (OA). However, subjective methods used to assess PA are highly variable and have not been developed for use within studies of OA, which creates difficulties when comparing and interpreting PA data in OA research. The aim of this study was, therefore, to gain expert agreement on the appropriate methods to harmonise PA data among existing population cohorts to enable the investigation of the association of PA and OA. The definition of PA in an OA context and methods of harmonization were established via an international expert consensus meeting and modified Delphi exercise using a geographically diverse committee selected on the basis of individual expertise in physical activity, exercise medicine, and OA. Agreement was met for all aims of study: (1) The use of Metabolic Equivalent of Task (MET) minutes per week (MET-min/week) as a method for harmonising PA variables among cohorts; (2) The determination of methods for treating missing components of MET-min/week calculation; a value will be produced from comparable activities within a representative cohort; (3) Exclusion of the domain of occupation from total MET-min/week; (4) The need for a specific measure of joint loading of an activity in addition to intensity and time, in studies of diseases, such as OA. This study has developed a systematic method to classify and harmonise PA in existing OA cohorts. It also provides minimum requirements for future studies intending to include subjective PA measures.
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Barbado C, Foster C, Vicente-Campos D, López-Chicharro J. Intensidad del ejercicio en ciclismo indoor / Exercise Intensity During Indoor Cycling. REVISTA INTERNACIONAL DE MEDICINA Y CIENCIAS DE LA ACTIVIDAD FÍSICA Y DEL DEPORTE 2017. [DOI: 10.15366/rimcafd2017.67.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Fraser-Taliente T, Mackie NE, Kaye S, Nyirenda M, Foster C. Off-licence use of once-daily maraviroc in children and adolescents with perinatally acquired HIV-1 infection. HIV Med 2016; 18:311-313. [PMID: 27981720 DOI: 10.1111/hiv.12467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Anokye N, Anagnostou A, Lord J, Taylor S, Vali Y, Foster C, Whincup P, Jefferis BJ, Fox-Rushby J. A ′microsimulation′ model for assessing the cost effectiveness of physical activity interventions. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw164.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Edwards K, Jones N, Newton J, Foster C, Judge A, Jackson K, Arden NK, Pinedo-Villanueva R. THE COST EFFECTIVENESS OF EXERCISE-BASED CARDIAC REHABILITATION: A SYSTEMATIC REVIEW. Br J Sports Med 2016. [DOI: 10.1136/bjsports-2016-096900.4] [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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Foster C, Bamford A, Turkova A, Welch S, Klein N. Paediatric European Network for Treatment of AIDS Treatment Guideline 2016 update: antiretroviral therapy recommended for all children living with HIV. HIV Med 2016; 18:133-134. [PMID: 27385585 PMCID: PMC5248631 DOI: 10.1111/hiv.12399] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Abstract
When a simple rectangular grid is drawn toward one's face there is the striking illusion that a spherical bulge is protruding from the grid. This illusion may be helpful in studying the interaction of spatial and motion processing.
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Foster C, Ritchie M, Selwood DL, Snowden W. Synthesis and Anti-Herpes Activity of a Series of Indolizines. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029500600502] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A systematic screening study identified 2-phenyl-indolizine [1] as having significant human cytomegalovirus (HCMV) activity (IC50 = 7-19 μM). Preliminary mode of action studies on infected cells treated with [1] indicated supression of HCMV-related polypeptides with little effect on the host cells. A series of analogues were synthesized, some of which showed improved HCMV activity although with lower therapeutic indices than [1]. Several analogues demonstrated significant varicella zoster virus activity, with 2-(4-cyanophenyl)indolizine [5] having an IC50 of 5 μM and a therapeutic index of 20 over cell toxicity in the MRC 5 cell line.
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Bhatnagar P, Townsend N, Shaw A, Foster C. PM010 The Physical Activity Profiles of Adult South Asians in England. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Kuhrt K, Hezelgrave N, Foster C, Seed PT, Shennan AH. Development and validation of a tool incorporating quantitative fetal fibronectin to predict spontaneous preterm birth in symptomatic women. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2016; 47:210-216. [PMID: 25964191 DOI: 10.1002/uog.14894] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 05/03/2015] [Accepted: 05/05/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To develop a reliable and validated tool for prediction of spontaneous preterm birth (sPTB) in symptomatic women that incorporates quantitative measurements of fetal fibronectin (qfFN) and other relevant risk factors. METHODS Data were analyzed that had been collected prospectively from 382 women who presented at an emergency assessment unit between 22 + 0 and 35 + 6 weeks' gestation with symptoms of preterm labor. Clinicians were blinded to qfFN although they were aware of qualitative fFN results. Parametric survival models for sPTB, with time-updated covariates, were developed for combinations of predictors and the best was selected using the Akaike and Bayesian information criteria. The model was developed on the first 190 consecutive women and validated on the subsequent 192. The estimated probability of delivery before 30, 34 or 37 weeks' gestation and within 2 or 4 weeks of testing was calculated for each patient and was compared to actual event rates. Predictive statistics were calculated to compare training and validation sets. RESULTS The final model that was selected used qfFN and previous sPTB/preterm prelabor rupture of membranes (PPROM) as predictors. Predictive statistics were similar for training and validation sets and there was good agreement between expected and observed sPTB for all outcomes. Areas under the receiver-operating characteristics curves ranged from 0.77 to 0.88, indicating accurate prediction across all five delivery outcomes. CONCLUSIONS sPTB in symptomatic women can be predicted accurately using a model combining qfFN and previous sPTB/PPROM. Clinicians can use this model, which has been incorporated into an App (QUiPP), to determine accurately a woman's risk of sPTB and potentially tailor management decisions appropriately.
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