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Yan Y, Dou Y, Penagaricano J, Ratanatharathorn V, Gardner K, Moros E, Corry P, Zhang X, Chao M, Mihaylov I. SU-FF-T-609: Dose Summation Technology for Radiation Therapy Facilities Equipped with Heterogeneous Planning and Delivery Systems. Med Phys 2009. [DOI: 10.1118/1.3182107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zhang X, Penagaricano J, Boyd K, Yan Y, Corry P, Ratanatharathorn V, Moros E. SU-FF-T-208: Dose Verification for Total Marrow Irradiation Using HELICAL TOMOTHERAPY Planned Adaptive. Med Phys 2009. [DOI: 10.1118/1.3181683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chao M, Moros E, Ratanatharathorn V, Penagaricano J, Yan Y, Xing L, Gardner K, Corry P. TH-C-304A-03: MVCT Auto-Contouring for Adpative Radiation Therapy. Med Phys 2009. [DOI: 10.1118/1.3182639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zhang X, Penagaricano J, Yan Y, Hancock S, Ratanatharathorn V, Corry P, Moros E. SU-FF-T-248: Quality Assurance for Total Marrow Irradiation (TMI) Using Helical Tomotherapy. Med Phys 2009. [DOI: 10.1118/1.3181724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Sharma S, Chao M, Moros E, Corry P. TH-C-BRC-08: Integration of Cone Beam CT Imaging and a Small Animal Conformal RT Device Using a 6DOF Robotic Arm. Med Phys 2009. [DOI: 10.1118/1.3182622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Mihaylov IB, Corry P, Yan Y, Ratanatharathorn V, Moros EG. Modeling of carbon fiber couch attenuation properties with a commercial treatment planning system. Med Phys 2008; 35:4982-8. [PMID: 19070232 DOI: 10.1118/1.2982135] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Mihaylov I, Corry P, Moros E, Penagaricano J, Ratanatharathorn V. SU-GG-J-151: Potential Lung Dose Reduction for Minimally-Moving Lung Lesions. Med Phys 2008. [DOI: 10.1118/1.2961700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Mihaylov I, Moros E, Corry P, Penagaricano J. SU-GG-T-539: Carbon Fiber Couch Effect On Skin Doses as a Function of Photon Energy. Med Phys 2008. [DOI: 10.1118/1.2962288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Sharma S, Moros E, Corry P. SU-GG-J-170: Small Animal Conformal Radiation Therapy Device. Med Phys 2008. [DOI: 10.1118/1.2961719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Sharma S, Moros E, Corry P. SU-GG-J-160: Radiation Enclosure Shielding Calculations for a Laboratory-Based Small Animal Conformal Radiation Therapy Device. Med Phys 2008. [DOI: 10.1118/1.2961709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Gao W, Penagaricano J, Moros E, Corry P, Griffin R, Ivy A, Youssef E, Ratanatharathorn V. SU-FF-T-336: Patient-Specific QA in MLC-Based GRID Therapy. Med Phys 2007. [DOI: 10.1118/1.2760999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zhang X, Penagaricano J, Moros E, Corry P, Ivy A, Yan Y, Youssef E, Ratanatharathorn V. WE-C-M100F-09: Dosimetric Comparison of Linac-IMRT and Helical Tomotherapy (HT) for Head and Neck Cancer. Med Phys 2007. [DOI: 10.1118/1.2761529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Bond J, Roberts E, Springel K, Lizarraga S, Scott S, Higgins J, Hampshire DJ, Morrison EE, Leal GF, Silva EO, Costa SMR, Baralle D, Raponi M, Karbani G, Rashid Y, Jafri H, Bennett C, Corry P, Walsh CA, Woods CG. Erratum: Corrigendum: A centrosomal mechanism involving CDK5RAP2 and CENPJ controls brain size. Nat Genet 2005. [DOI: 10.1038/ng0505-555d] [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]
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Corry P, Sanjay PS, Russell GN, Pennefather SH. Confirming the position of the thoracic epidural catheter--a valuable sign. Anaesthesia 2003; 58:929-30. [PMID: 12911392 DOI: 10.1046/j.1365-2044.2003.03362_25.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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King H, Corry P, Wauchob T, Barclay P. Probable dystonic reaction after a single dose of cyclizine in a patient with a history of encephalitis. Anaesthesia 2003; 58:257-60. [PMID: 12603456 DOI: 10.1046/j.1365-2044.2003.03038.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A patient underwent an emergency Caesarean section under general anaesthesia for an antepartum haemorrhage. Following delivery of a live infant, cyclizine was administered in accordance with departmental anti-emetic protocol. On awakening she was confused, slow to articulate and had slurred speech. A computed tomography (CT) scan, which was performed to exclude an intracranial event, was normal. Her symptoms were suggestive of a lingual-facial-buccal dyskinesia as seen with dopamine antagonists. A presumptive diagnosis of a dystonic reaction to cyclizine was made. She received two doses of procyclidine before her symptoms completely resolved. Cyclizine has had a resurgence in popularity owing to the recent withdrawal of droperidol and anaesthetists should be aware that, although extremely rare, dystonic reactions may occur with this agent.
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Roberts E, Hampshire DJ, Pattison L, Springell K, Jafri H, Corry P, Mannon J, Rashid Y, Crow Y, Bond J, Woods CG. Autosomal recessive primary microcephaly: an analysis of locus heterogeneity and phenotypic variation. J Med Genet 2002; 39:718-21. [PMID: 12362027 PMCID: PMC1734986 DOI: 10.1136/jmg.39.10.718] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND AND OBJECTIVES Locus heterogeneity is well established in autosomal recessive primary microcephaly (MCPH) and to date five loci have been mapped. However, the relative contributions of these loci have not been assessed and genotype-phenotype correlations have not been investigated. DESIGN A study population of 56 consanguineous families resident in or originating from northern Pakistan was ascertained and assessed by the authors. A panel of microsatellite markers spanning each of the MCPH loci was designed, against which the families were genotyped. RESULTS The head circumference of the 131 affected subjects ranged from 4 to 14 SD below the mean, but there was little intrafamilial variation among affecteds (+/- 1 SD). MCPH5 was the most prevalent, with 24/56 families consistent with linkage; 2/56 families were compatible with linkage to MCPH1, 10/56 to MCPH2, 2/56 to MCPH3, none to MCPH4, and 18/56 did not segregate with any of the loci. CONCLUSIONS MCPH5 is the most common locus in this population. On clinical grounds alone, the phenotype of families linked to each MCPH locus could not be distinguished. We have also shown that further MCPH loci await discovery with a number of families as yet unlinked.
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Rees MI, Lewis TM, Vafa B, Ferrie C, Corry P, Muntoni F, Jungbluth H, Stephenson JB, Kerr M, Snell RG, Schofield PR, Owen MJ. Compound heterozygosity and nonsense mutations in the alpha(1)-subunit of the inhibitory glycine receptor in hyperekplexia. Hum Genet 2001; 109:267-70. [PMID: 11702206 DOI: 10.1007/s004390100569] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2001] [Accepted: 06/08/2001] [Indexed: 10/28/2022]
Abstract
The alpha(1)-inhibitory glycine receptor is a ligand-gated chloride channel composed of three ligand-binding alpha1-subunits and two structural beta-subunits that are clustered on the postsynaptic membrane of inhibitory glycinergic neurons. Dominant and recessive mutations in GLRA1 subunits have been associated with a proportion of individuals and families with startle disease or hyperekplexia (MIM: 149400). Following SSCP and bi-directional di-deoxy fingerprinting mutational analysis of 22 unrelated individuals with hyperekplexia and hyperekplexia-related conditions, we report further novel missense mutations and the first nonsense point mutations in GLRA1, the majority of which localise outside the regions previously associated with dominant, disease-segregating mutations. Population studies reveal the unique association of each mutation with disease, and reveals that a proportion of sporadic hyperekplexia is accounted for by the homozygous inheritance of recessive GLRA1 mutations or as part of a compound heterozygote.
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Crow YJ, Jackson AP, Roberts E, van Beusekom E, Barth P, Corry P, Ferrie CD, Hamel BCJ, Jayatunga R, Karbani G, Kálmánchey R, Kelemen A, King M, Kumar R, Livingstone J, Massey R, McWilliam R, Meager A, Rittey C, Stephenson JBP, Tolmie JL, Verrips A, Voit T, van Bokhoven H, Brunner HG, Woods CG. Aicardi-Goutières syndrome displays genetic heterogeneity with one locus (AGS1) on chromosome 3p21. Am J Hum Genet 2000; 67:213-21. [PMID: 10827106 PMCID: PMC1287108 DOI: 10.1086/302955] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2000] [Accepted: 04/17/2000] [Indexed: 11/03/2022] Open
Abstract
We have studied 23 children from 13 families with a clinical diagnosis of Aicardi-Goutières syndrome. Affected individuals had developed an early-onset progressive encephalopathy that was characterized by a normal head circumference at birth, basal ganglia calcification, negative viral studies, and abnormalities of cerebrospinal fluid comprising either raised white cell counts and/or raised levels of interferon-alpha. By means of genomewide linkage analysis, a maximum-heterogeneity LOD score of 5.28 was reached at marker D3S3563, with alpha=.48, where alpha is the proportion of families showing linkage. Our data suggest the existence of locus heterogeneity in Aicardi-Goutières syndrome and highlight potential difficulties in the differentiation of this condition from pseudo-TORCH (toxoplasmosis, rubella, cytomegalovirus, and herpes simplex virus types 1 and 2) syndrome.
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MESH Headings
- Abnormalities, Multiple/diagnosis
- Abnormalities, Multiple/epidemiology
- Abnormalities, Multiple/genetics
- Abnormalities, Multiple/physiopathology
- Age of Onset
- Brain Damage, Chronic/diagnosis
- Brain Damage, Chronic/epidemiology
- Brain Damage, Chronic/genetics
- Brain Damage, Chronic/physiopathology
- Child
- Child, Preschool
- Chromosome Mapping
- Chromosomes, Human, Pair 3/genetics
- Diagnosis, Differential
- Female
- Genetic Heterogeneity
- Genetic Markers/genetics
- Humans
- Infant
- Infant, Newborn
- Lod Score
- Male
- Models, Genetic
- Pedigree
- Syndrome
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McHale DP, Jackson AP, Levene MI, Corry P, Woods CG, Lench NJ, Mueller RF, Markham AF. A gene for ataxic cerebral palsy maps to chromosome 9p12-q12. Eur J Hum Genet 2000; 8:267-72. [PMID: 10854109 DOI: 10.1038/sj.ejhg.5200445] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Cerebral palsy (CP) has an incidence of approximately 1 in 750 births, although this varies between ethnic groups. Genetic forms of the disease account for about 2% of cases in most countries, but contribute a larger proportion in certain sub-types of the condition and in populations with a large proportion of consanguineous marriages. Ataxic cerebral palsy accounts for 5-10% of all forms of CP and it is estimated that approximately 50% of ataxic cerebral palsy is inherited as an autosomal recessive trait. We have identified a complex consanguineous Asian pedigree with four children in two sibships affected with ataxic cerebral palsy and have used homozygosity mapping to map the disorder in this family. A genome-wide search was performed using 343 fluorescently labelled polymorphic markers and linkage to chromosome 9p12-q12 was demonstrated. A maximum Lod score of 3.4 was observed between the markers D9S50 and D9S167 using multipoint analysis, a region of approximately 23cM. We have identified a family that segregates both ataxic CP and ataxic diplegia and have mapped the genetic locus responsible in this family to chromosome 9p12-q12. The identification of gene(s) involved in the aetiology of CP will offer the possibility of prenatal/premarital testing to some families with children affected with the disorder and will greatly increase our understanding of the development of the control of motor function.
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Moynihan L, Jackson AP, Roberts E, Karbani G, Lewis I, Corry P, Turner G, Mueller RF, Lench NJ, Woods CG. A third novel locus for primary autosomal recessive microcephaly maps to chromosome 9q34. Am J Hum Genet 2000; 66:724-7. [PMID: 10677332 PMCID: PMC1288125 DOI: 10.1086/302777] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Primary autosomal recessive microcephaly is a clinical diagnosis of exclusion in an individual with a head circumference >/=4 SDs below the expected age-and-sex mean. There is associated moderate mental retardation, and neuroimaging shows a small but structurally normal cerebral cortex. The inheritance pattern in the majority of cases is considered to be autosomal recessive. Although genetic heterogeneity for this clinical phenotype had been expected, this has only recently been demonstrated, with the mapping of two loci for autosomal recessive primary microcephaly: MCPH1 at 8p and MCPH2 at 19q. We have studied a large multiaffected consanguineous pedigree, using a whole-genome search, and have identified a third locus, MCPH3 at 9q34. The minimal critical region is approximately 12 cM, being defined by the markers cen-D9S1872-D9S159-tel, with a maximum two-point LOD score of 3.76 (recombination fraction 0) observed for the marker D9S290.
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Huang Q, Shan S, Braun RD, Lanzen J, Anyrhambatla G, Kong G, Borelli M, Corry P, Dewhirst MW, Li CY. Noninvasive visualization of tumors in rodent dorsal skin window chambers. Nat Biotechnol 1999; 17:1033-5. [PMID: 10504711 DOI: 10.1038/13736] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Jackson AP, McHale DP, Campbell DA, Jafri H, Rashid Y, Mannan J, Karbani G, Corry P, Levene MI, Mueller RF, Markham AF, Lench NJ, Woods CG. Primary autosomal recessive microcephaly (MCPH1) maps to chromosome 8p22-pter. Am J Hum Genet 1998; 63:541-6. [PMID: 9683597 PMCID: PMC1377307 DOI: 10.1086/301966] [Citation(s) in RCA: 115] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Primary (or "true") microcephaly is inherited as an autosomal recessive trait and is thought to be genetically heterogeneous. Using autozygosity mapping, we have identified a genetic locus (MCPH1) for primary microcephaly, at chromosome 8p22-pter, in two consanguineous families of Pakistani origin. Our results indicate that the gene lies within a 13-cM region between the markers D8S1824 and D8S1825 (maximum multipoint LOD score of 8.1 at D8S277). In addition, we have demonstrated the genetic heterogeneity of this condition by analyzing a total of nine consanguineous families with primary microcephaly.
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Brenner D, Armour E, Corry P, Hall E. Sublethal damage repair times for a late-responding tissue relevant to brachytherapy (and external-beam radiotherapy): implications for new brachytherapy protocols. Int J Radiat Oncol Biol Phys 1998; 41:135-8. [PMID: 9588928 DOI: 10.1016/s0360-3016(98)00029-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Data were analyzed from recent experiments with the end point of late rectal obstruction in rats, involving acute and various protracted radiation exposures. Because the end point is of direct relevance both for brachytherapy as well as external beam radiotherapy, the goal was to estimate the linear-quadratic (LQ) parameters alpha/beta and T1/2, which are of importance for designing improved protraction/fractionation schemes. METHODS AND MATERIALS The data were fit to the LQ model, both in its standard form and in a form in which two different components of sublethal damage repair-fast and slow-are assumed. The design of the experiments was such that both slow and reasonably fast sublethal damage repair components should be separately estimated, if they were contributing to a significant degree. RESULTS LQ parameter estimates were alpha/beta = 4.6 Gy [4.0, 5.5] and T1/2 = 70.2 min [59.1, 91.4]. Despite the experimental design facilitating detection of a rapid component of repair, no statistically robust evidence for a very fast repair component was found. CONCLUSIONS The long estimated repair time for a late-responding normal-tissue end point with direct relevance to brachytherapy suggests a variety of possible brachytherapy protocols that may be more efficacious than continuous low dose rate irradiation. Just as a difference in alpha/beta ratios between early- and late-responding tissues are a central tenet in radiotherapy, so corresponding differences in T1/2 values have the potential to be exploited, particularly for brachytherapy.
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Sinha G, Corry P, Subesinghe D, Wild J, Levene MI. Prevalence and type of cerebral palsy in a British ethnic community: the role of consanguinity. Dev Med Child Neurol 1997; 39:259-62. [PMID: 9183266 DOI: 10.1111/j.1469-8749.1997.tb07422.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Little is known about the prevalence of cerebral palsy (CP) within ethnic subgroups born in Britain. The Yorkshire Regional Cerebral Palsy Register has ascertained all cases of CP in children born within the Regional Health Authority boundary in 1985 to 1987 inclusive and diagnosed by 5 years of age. Birth registrations recorded by ethnic subgroups allowed us to determine the prevalence of CP within the Bradford District Health Authority (BDHA) boundaries by Asian and non-Asian ethnic subgroups. All the children with CP in BDHA were examined by one individual and careful family pedigrees recorded. We noted that BDHA had a high prevalence of CP; 3.87 to 4.16 per 1000. The prevalences in the non-Asian and Asian populations were 3.18, and between 5.48 and 6.42, per 1000, respectively. This difference was statistically significant (P = 0.03). First cousin marriages occurred in 15 of the 39 Asian families (51.7%) and nine of these families had another first or second degree family member with a similar type of CP to the index child. There was no consanguinity in the non-Asian families. These data highlight the increased need for services in some ethnic populations living in Britain and the likely genetic aetiology of a significant proportion of cases of CP in Asian families.
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Armour E, Wang Z, Corry P, Martinez A. Thermotolerance and radiation sensitizing effects of long duration, mild temperature hyperthermia. Int J Hyperthermia 1994; 10:315-24. [PMID: 7930797 DOI: 10.3109/02656739409010275] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Clinical application of long duration hyperthermia at temperatures < 42 degrees C has traditionally been avoided because of the possibility of chronic thermotolerance development, such as is observed with rodent cells. In support of long duration hyperthermia, both rodent and human cells have been shown to be sensitized to low dose-rate irradiation by simultaneous heating at 40 or 41 degrees C. The relationship between these supposed contradictory responses to hyperthermia were investigated in rat 9L gliosarcoma cells in vitro. Thermotolerance developed during 41 degrees C heating with or without concurrent low dose-rate irradiation. Thermotolerance reached a maximum within 6 h during 41 degrees C heating and remained stable for at least 24 h. When cells were returned to 37 degrees C after heating at 41 degrees C for 6 h, thermotolerance remained stable for at least 12 h. The time course of thermotolerance development correlated with that of induction of 41 degrees C radiation sensitization. Radiation sensitization, on the other hand, was shown to be independent of thermotolerance because the protein synthesis inhibitor cycloheximide prevented thermotolerance induction but had no effect on radiation sensitization. We conclude that thermotolerance development during concurrent clinical application of long duration mild temperature hyperthermia and low dose-rate irradiation should not be a factor in altering treatment outcome.
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