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Gross JD, Bradbury J, Kay RR, Peacey MJ. Intracellular pH and the control of cell differentiation in Dictyostelium discoideum. Nature 1983; 303:244-5. [PMID: 6843673 DOI: 10.1038/303244a0] [Citation(s) in RCA: 159] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
During development in the cellular slime mould Dictyostelium discoideum starved amoebae aggregate to form multicellular structures that display a simple antero-posterior pattern: prestalk cells occupy the front 20% of the aggregate, and prespore cells occupy the remainder. We have attempted to elucidate the nature of the mechanism regulating the proportions of the two cell types by examining the factors that influence the pathway of differentiation of amoebae in vitro. Amoebae of D. discoideum strain V12 M2 form stalk cells efficiently in appropriate conditions and 'sporogenous' derivatives produce spores as well as stalk cells. Mature spores are formed in a medium containing only cyclic AMP and salts, whereas formation of stalk cells requires, in addition, a low molecular weight hydrophobic factor (DIF). Recent observations have led us to propose that DIF is a morphogen responsible for activating stalk cell differentiation. Here we present evidence that ammonia is a second morphogen, that acts antagonistically to DIF, and that the choice of differentiation pathway is mediated by intracellular pH.
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Beever K, Bradbury J, Phillips D, McLachlan SM, Pegg C, Goral A, Overbeck W, Feifel G, Smith BR. Highly sensitive assays of autoantibodies to thyroglobulin and to thyroid peroxidase. Clin Chem 1989. [DOI: 10.1093/clinchem/35.9.1949] [Citation(s) in RCA: 132] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
These highly sensitive assays are based on the interaction between thyroid autoantibodies and 125I-labeled autoantigens. Serum samples are incubated with labeled thyroid peroxidase (TPO) or thyroglobulin (Tg) to allow the formation of antibody-labeled antigen complexes. The complexes are then precipitated by addition of solid-phase Protein A. In the presence of high concentrations of TPO antibody or Tg antibody, more than 50% of the respective labeled antigen was precipitated, whereas only 1-2% was precipitated in the absence of autoantibody. Interassay CVs were 3.2% and 5.7%, respectively, for the anti-TPO and anti-Tg assays. There was no cross-reactivity between Tg antibody and TPO antibody. Results correlated highly significantly with results from other assay systems based on antigen-coated cells or plastic supports, but the assays described here were considerably more sensitive. Scatchard analysis of the assay data provided information on the affinity and serum concentration of TPO autoantibodies (ka approximately 10(9) L/mol and concentrations up to 1 g/L) and Tg autoantibodies (ka approximately 4 x 10(10) L/mol and concentrations up to 1 g/L). Overall, these assays provide a sensitive, precise, and convenient system for measuring and investigating the properties of thyroid autoantibodies.
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Oliver C, Crayton L, Holland A, Hall S, Bradbury J. A four year prospective study of age-related cognitive change in adults with Down's syndrome. Psychol Med 1998; 28:1365-1377. [PMID: 9854278 DOI: 10.1017/s0033291798007417] [Citation(s) in RCA: 128] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND While neuropathological studies indicate a high risk for Alzheimer's disease in adults with Down's syndrome, neuropsychological studies suggest a lower prevalence of dementia. In this study, cognitive deterioration in adults with Down's syndrome was examined prospectively over 4 years to establish rates and profiles of cognitive deterioration. METHODS Fifty-seven people with Down's syndrome aged 30 years or older were assessed using a battery of neuropsychological tests on five occasions across 50 months. Assessments of domains of cognitive function known to change with the onset of Alzheimer related dementia were employed. These included tests of learning, memory, orientation, agnosia, apraxia and aphasia. The individual growth trajectory methodology was used to analyse change over time. RESULTS Severe cognitive deterioration, such as acquired, apraxia and agnosia, was evident in 28.3% of those aged over 30 and a higher prevalence of these impairments was associated with older age. The rate of cognitive deterioration also increased with age and degree of pre-existing cognitive impairment. Additionally, deterioration in memory, learning and orientation preceded the acquisition of aphasia, agnosia and apraxia. CONCLUSIONS The prevalence of cognitive impairments consistent with the presence of Alzheimer's disease is lower than that suggested by neuropathological studies. The pattern of the acquisition of cognitive impairments in adults with Down's syndrome is similar to that seen in individuals with Alzheimer's disease who do not have Down's syndrome.
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Bradbury J, Thomason JM, Jepson NJA, Walls AWG, Allen PF, Moynihan PJ. Nutrition Counseling Increases Fruit and Vegetable Intake in the Edentulous. J Dent Res 2016; 85:463-8. [PMID: 16632762 DOI: 10.1177/154405910608500513] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Edentulous denture-wearers eat fewer fruits and vegetables than do comparable dentate individuals. Improved chewing ability with new dentures has resulted in little dietary improvement, suggesting that dietary intervention is necessary. The objective of this randomized controlled trial was to have a positive impact upon dietary behavior of patients receiving replacement complete dentures through a tailored dietary intervention. Readiness to change diet (Stage of Change), intake of fruits, vegetables, and nutrients, and chewing ability were assessed pre-and 6 weeks post-intervention. The intervention group (n = 30) received two dietary counseling sessions; the control group (n = 28) received current standard care. Perceived chewing ability significantly increased in both groups. There was significantly more movement from pre-action into action Stages of Change in the intervention group, who had a greater increase in fruit/vegetable consumption (+209 g/d) than did the control group (+26 g/d) (P = 0.001). Tailored dietary intervention contemporaneous with replacement dentures can positively change dietary behavior.
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Bradbury J, Forest K, Nuttall R, Sharp D. The far infrared spectra of ligand-metal-halide complexes of pseudotetrahedral symmetry. ACTA ACUST UNITED AC 1967. [DOI: 10.1016/0584-8539(67)80163-6] [Citation(s) in RCA: 70] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Fleming JO, Trousdale MD, Bradbury J, Stohlman SA, Weiner LP. Experimental demyelination induced by coronavirus JHM (MHV-4): molecular identification of a viral determinant of paralytic disease. Microb Pathog 1987; 3:9-20. [PMID: 2848172 PMCID: PMC7134751 DOI: 10.1016/0882-4010(87)90033-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The molecular basis for demyelination induced by the neurotropic murine coronavirus JHM (JHMV or MHV4) is unknown. We have attempted to explore this issue by using neutralizing monoclonal antibodies specific for the major JHMV glycoprotein (E2) to select sets of neutralization resistant (NR) antigenic variant viruses. Monoclonal antibodies J.7.2 and J.2.2 bind to topographically distinct sites on E2. NR variants selected with J.7.2, like parental JHMV, predominantly cause a fatal encephalitis when given intracerebrally to mice, while J.2.2-selected NR variants cause a subacute disease characterized by paralysis and severe demyelination. We report here that consecutive selection with both J.2.2 and J.7.2 monoclonal antibodies results in NR variants which are markedly attenuated in both encephalitic potential and ability to induce demyelination. Analysis of the different variants suggests that the subregion of E2 bound by monoclonal antibody J.7.2 may be a critical viral determinant of paralysis and demyelination in this model system.
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Abstract
The "olfactory nerve," the endoparietal eye, and the rudimentary lateral eyes of Limulus (polyphemus) contain simple photoreceptor cells that duplicate many of the electrical responses of the retinular cells of the lateral eye; the responses are a receptor potential consisting of aninitial transient phase and a subsequent steady phase,low-amplitude fluctuations, and a small locally regenerative response to pulses of both light and current. Photic stimulation does not induce conducted action potentials, but does increase the membrane conductance. The receptor potentialrequires the presence of sodium ions in the external medium. Measurements of action and absorption spectra indicate a photopigment whose maximum absorption is of light with wavelength of 535 nanometers. The functional significance of these cells has not been ascertained.
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Bradbury J, Thomason JM, Jepson NJA, Walls AWG, Mulvaney CE, Allen PF, Moynihan PJ. Perceived chewing ability and intake of fruit and vegetables. J Dent Res 2008; 87:720-5. [PMID: 18650541 DOI: 10.1177/154405910808700815] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Edentulous individuals have reduced chewing ability and lower fruit and vegetable consumption compared with dentate individuals. It has been suggested that the two are causally related. However, psychosocial factors such as attitude, self-identity, and knowledge of recommendations are predictive of intake in non-edentulous persons. The aims of this study were to: determine if perceived chewing ability was predictive of fruit and vegetable intake; explore the predictive ability of knowledge, attitude, and self-identity; and compare intake between edentulous and dentate individuals. Full denture-wearing (N = 79) and dentate persons (N = 52) completed a three-day food diary. Perceived chewing ability, sociodemographic, and psychosocial factors were assessed via self-administered questionnaire. The dentate persons consumed significantly more fruit and vegetables, but differences were not significant when juices were excluded. Perceived chewing ability explained approximately 4% variance in intake. Attitude, self-identity, and knowledge explained a further approximately 20%. If the diet of denture-wearers is to be improved, psychosocial factors, as well as perceived chewing ability, must be addressed.
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Research Support, Non-U.S. Gov't |
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Angeloni L, Bradbury J. Body size influences mating strategies in a simultaneously hermaphroditic sea slug,Aplysia vaccaria. ETHOL ECOL EVOL 1999. [DOI: 10.1080/08927014.1999.9522836] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ainsworth JR, Morton JE, Good P, Woods CG, George ND, Shield JP, Bradbury J, Henderson MJ, Chhina J. Micro syndrome in Muslim Pakistan children. Ophthalmology 2001; 108:491-7. [PMID: 11237903 DOI: 10.1016/s0161-6420(00)00540-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To date, Micro syndrome has been reported in only three children from one family. We describe an additional 14 children from 11 families. DESIGN Retrospective case series. PARTICIPANTS Fourteen children from 11 families attending one of five British hospitals. MAIN OUTCOME MEASURES The following features were documented: pre- and postoperative eye findings, electrophysiologic analysis, systemic abnormalities, development, neuroimaging, genealogy, geographic origin of family. RESULTS We expand and modify the description of ocular and electrophysiologic findings in Micro syndrome. The eye findings of microphakia, microphthalmos, characteristic lens opacity, and atonic pupils were the presenting feature in all infants and were the most reliable diagnostic signs in the immediate postnatal period. Cortical visual impairment, microcephaly, and developmental delay were not always detectable initially; they developed in all children by 6 months of age. Microgenitalia were a useful diagnostic clue in affected males only. Therefore, eye features were more consistently useful in determining diagnosis than dysmorphology or brain imaging. The families of all the children originate from the Muslim population of Northern Pakistan. Inheritance is likely to be autosomal recessive. CONCLUSIONS Micro syndrome usually presents to the ophthalmologist, who may be able to make the diagnosis on the basis of characteristic eye findings combined with ethnic origin. Initially, the nature and severity of nonophthalmic features are not apparent. Early diagnosis of the underlying condition is important to guide management of the cataracts, glaucoma, and developmental delay. It is helpful for the family and medical staff to be aware of the low level of vision that develops despite optimal ophthalmic intervention. Genetic counseling extending into the wider family is particularly important in view of the high rate of consanguinity.
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Case Reports |
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12
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News |
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Downey LM, Bottomley HM, Sheridan E, Ahmed M, Gilmour DF, Inglehearn CF, Reddy A, Agrawal A, Bradbury J, Toomes C. Reduced bone mineral density and hyaloid vasculature remnants in a consanguineous recessive FEVR family with a mutation in LRP5. Br J Ophthalmol 2006; 90:1163-7. [PMID: 16929062 PMCID: PMC1857417 DOI: 10.1136/bjo.2006.092114] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2006] [Indexed: 11/03/2022]
Abstract
BACKGROUND/AIMS Familial exudative vitreoretinopathy (FEVR) is an inherited blinding condition characterised by abnormal development of the retinal vasculature. FEVR has multiple modes of inheritance, and homozygous mutations in LRP5 have recently been reported as underlying the recessive form of this disease. The aim of this study was to examine LRP5 in a consanguineous recessive FEVR family and to clarify the eye and bone phenotype associated with recessive FEVR. METHODS All family members were examined by slit lamp biomicroscopy and indirect ophthalmoscopy. Linkage to LRP5 was determined by genotyping microsatellite markers, constructing haplotypes and calculating lod scores. Mutation screening of LRP5 was performed by polymerase chain reaction amplification of genomic DNA followed by direct sequencing. Bone mineral density (BMD) was evaluated in all family members using dual energy x ray absorptiometry (DEXA). RESULTS The clinical features observed in this family were consistent with a diagnosis of recessive FEVR. A homozygous LRP5 missense mutation, G550R, was identified in all affected individuals and all unaffected family members screened were heterozygous carriers of this mutation. Reduced BMD, hyaloid vasculature remnants, and nystagmus were features of the phenotype. CONCLUSION Recessive mutations in LRP5 can cause FEVR with reduced BMD and hyaloid vasculature remnants. Assessment of a patient with a provisional diagnosis of FEVR should therefore include investigation of BMD, with reduced levels suggestive of an underlying LRP5 mutation.
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Case Reports |
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Howell Davies O, Suleiman S, Nicholas J, Bradbury J, Msebele S, Prior G, Hall L, Wreford S, Jarvis L, McGee A, Poulter J, Nelson M. Food portion weights in primary and secondary school lunches in England. J Hum Nutr Diet 2008; 21:46-62. [PMID: 18184394 DOI: 10.1111/j.1365-277x.2007.00846.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND National Nutritional Standards for school lunches were reintroduced in 2001, and included guidance on portion sizes for primary schools. For the first time since 1997, nationally representative data on school food portion sizes in England have been collected using direct assessment rather than reported portion sizes. METHODS Food portions were weighed directly in foods served in nationally representative samples of primary and secondary school meals. Results were grouped by food or food group. RESULTS The number of portions weighed was 7975 in primary schools and 3354 in secondary schools. Individual portion weights were grouped by food or food group to yield mean, median, SD and inter-quartile range. For a given food or food group, the number of portions weighed varied from 5 to 210 portions in primary schools and between 5 and 194 portions in secondary schools. CONCLUSIONS The results provide a good representation of typical portion weights for different foods and food groups in primary and secondary schools in England. Portion size is one factor that determines nutrient intake. New standards for school lunches are both nutrient and food-based. Guidance on portion weights will help to ensure that pupils consume the correct balance of foods to obtain the recommended nutrient intake. The present findings complement and extend existing guidance on portion sizes for pupils in schools in England and Scotland.
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Journal Article |
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Grennan Jones F, Wolstenholme A, Fowler S, Smith S, Ziemnicka K, Bradbury J, Furmaniak J, Rees Smith B. High-level expression of recombinant immunoreactive thyroid peroxidase in the High Five insect cell line. J Mol Endocrinol 1996; 17:165-74. [PMID: 8938592 DOI: 10.1677/jme.0.0170165] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Expression of a major thyroid autoantigen, thyroid peroxidase (TPO) was studied using the baculovirus-insect cell expression system. Human TPO cDNA modified so as to code for the extracellular fragment of the protein was placed under the control of the strong polyhedrin promoter in baculovirus transfer vector pBlueBacIII and cotransfected with linearized AcMNPV viral DNA. Expression in two insect cell lines Spodoptera frugiperda (Sf9) and Tricoplusia ni (High Five) was investigated and levels of recombinant TPO (rTPO) monitored by RIA and SDS-PAGE followed by Western blotting. Both insect cell lines expressed rTPO, but higher levels (30 mg/l culture medium) were obtained with High Five cells. Culture medium rTPO was purified and its glycosylation and immunoreactivity analysed. Lectin-affinity blotting and treatment with glycosidases indicated that both high mannose and complex-type sugar residues were associated with the recombinant protein. Studies with an ELISA based on biotinlabelled rTPO and an immunoprecipitation assay based on 125I-labelled rTPO indicated that the rTPO and native TPO showed similar reactivity to TPO autoantibodies (r = 0.96, P < 0.001, n = 50 and r = 0.99, P < 0.001, n = 80 respectively). In addition, rTPO expressed in High Five cells showed enzyme activity comparable with that of native TPO when the heme biosynthesis precursor delta-aminolevulinic acid was included in the culture medium. Overall, our studies indicate that the High Five insect cell line provides a useful system for the expression of relatively high levels of rTPO which should be suitable for structural analysis of TPO and TPO-TPO autoantibody complexes.
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Stewart O, Chang B, Bradbury J. Simultaneous administration of hepatitis B and polio vaccines associated with bilateral optic neuritis. Br J Ophthalmol 1999; 83:1200-1. [PMID: 10636652 PMCID: PMC1722811 DOI: 10.1136/bjo.83.10.1194g] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Petersen VB, Fukuma N, McLachlan SM, Bradbury J, Beever K, Devey ME, Bleasdale-Barr KM, Phillips DI, Baylis P, Ryley H. A human-mouse hybridoma which secretes monoclonal thyroglobulin autoantibody with properties similar to those of the donor patient's serum autoantibody. Autoimmunity 1989; 4:89-102. [PMID: 2562381 DOI: 10.3109/08916938909034363] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Human monoclonal antibodies produced by Epstein Barr (EB) virus transformation and/or cell fusion are frequently IgM antibodies which tend to cross react with a range of antigens and often bear little relationship to the highly specific IgG antibodies associated with human autoimmune disease. By fusing EB virus transformed B lymphocytes from a Hashimoto patient with a mouse myeloma line and selecting for synthesis of IgG class thyroglobulin (Tg) antibody, we have developed a hybridoma (VB/5) secreting Tg antibody of IgG2 subclass and lambda light chain type which has the characteristics of a monoclonal antibody on isoelectric focussing. The antibody has a high affinity for human Tg and recognises Tg from other primates but not non-primate Tg. However, it does not react with human thyroid peroxidase or a panel of other autoantigens. In terms of affinity constant, functional affinity and affinity heterogeneity, the antibody closely resembles the IgG2 lambda Tg antibody present in the serum of the Hashimoto patient whose B lymphocytes were used to develop the hybridoma. In addition to providing a useful reference standard for Tg antibody IgG subclass assays, VB/5 antibody and the hybridoma line provide a valuable starting point for detailed studies of Tg autoantibodies and the genes coding for the variable regions of their heavy and light chains.
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Schwarz K, Yeung S, Symons N, Bradbury J. Survey of school children with visual impairment in Bradford. Eye (Lond) 2002; 16:530-4. [PMID: 12194063 DOI: 10.1038/sj.eye.6700059] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
UNLABELLED This work was presented as a poster at the Institute of Health Research Conference 2000: Health of Children and Young People: Research Perspectives. University of Bradford 15th of September 2000. AIMS The aim of this survey was to determine the prevalence and aetiology of visual impairment in school children in Bradford. METHODS The case notes of school children with predominantly uncomplicated visual impairment were reviewed. Data including age, sex, race and information on visual diagnosis, heredity, degree of visual impairment and additional morbidity were collected. RESULTS Seventy-two children between the ages of 5 and 16 years were included in this survey. The male: female ratio was 2.1: 1. Twenty-one children were Caucasian, 42 were of Pakistani and nine of other racial origin. The most common diagnoses were congenital nystagmus (19), ocular albinism (6), myopia (4), cataract (4) and microphthalmia (4). Twenty-five children had a genetically linked visual diagnosis and 31 had a family history of the same visual disorder. CONCLUSIONS This survey showed similar causes of visual impairment as described in other studies on children with uncomplicated visual impairment and confirmed the previously described preponderance of boys. The proportion of Pakistani children in our study population was significantly higher than that in the general Bradford population, indicating a higher prevalence of visual impairment in this group. Children of Pakistani origin were significantly more likely to have genetically linked visual disease and a positive family history of the same visual disorder than children of Caucasian origin. This is probably due to genetic factors and a higher proportion of consanguineous marriages in this population. Information about the prevalence and causes of visual impairment is important for adequate provision of special services and for developing preventive strategies.
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News |
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News |
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Bradbury J. Modelling stress constructs with biomarkers: the importance of the measurement model. ACTA ACUST UNITED AC 2013. [DOI: 10.12988/cems.2013.13017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wilkinson J, Lawes G, Unell I, Bradbury J, Maclean P. Problematic drug use and social deprivation. Public Health 1987; 101:165-8. [PMID: 3588823 DOI: 10.1016/s0033-3506(87)80063-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Daniel H, Reidy J, Hutson R, Bradbury J, Helland J. Two-Dimensional Visualization of Stopping Pion Distributions. Radiat Res 1976. [DOI: 10.2307/3574546] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Muthuramalingam S, Gale J, Bradbury J. Dexrazoxane efficacy for anthracycline extravasation: use in UK clinical practice. Int J Clin Pract 2013; 67:244-9. [PMID: 23409691 DOI: 10.1111/ijcp.12103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 12/04/2012] [Indexed: 11/30/2022] Open
Abstract
Extravasation is recognised as a major complication of administering intravenous chemotherapy treatment. Of the agents involved in extravasation, anthracyclines are associated with the greatest risk to patients because they are vesicant agents, having the potential to cause blistering and ulceration. If not identified and left untreated, anthracycline extravasation can lead to more serious complications such as tissue necrosis and functional impairment. Dexrazoxane (Savene(®) ) is the only licensed antidote for the treatment of anthracycline extravasation and clinical evidence has shown Savene(®) to be highly effective for preventing the need for surgery following anthracycline extravasation, allowing full recovery in the majority of patients. To date, there have been eight published studies reporting a total of 102 cases of Savene(®) use. Here, we review the published data on the efficacy of Savene(®) and present an analysis of 12 UK case studies. All UK oncology centres where Savene(®) has been used to manage anthracycline extravasation were contacted by SpePharm UK, who requested case studies for this publication. All of the cases received, including two from our own experience of using Savene(®) have been included in the analysis.
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Case Reports |
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