Search Results - (Author, Cooperation:W. Ollier)
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1Latest Papers from Table of Contents or Articles in PressS. Sawcer ; G. Hellenthal ; M. Pirinen ; C. C. Spencer ; N. A. Patsopoulos ; L. Moutsianas ; A. Dilthey ; Z. Su ; C. Freeman ; S. E. Hunt ; S. Edkins ; E. Gray ; D. R. Booth ; S. C. Potter ; A. Goris ; G. Band ; A. B. Oturai ; A. Strange ; J. Saarela ; C. Bellenguez ; B. Fontaine ; M. Gillman ; B. Hemmer ; R. Gwilliam ; F. Zipp ; A. Jayakumar ; R. Martin ; S. Leslie ; S. Hawkins ; E. Giannoulatou ; S. D'Alfonso ; H. Blackburn ; F. Martinelli Boneschi ; J. Liddle ; H. F. Harbo ; M. L. Perez ; A. Spurkland ; M. J. Waller ; M. P. Mycko ; M. Ricketts ; M. Comabella ; N. Hammond ; I. Kockum ; O. T. McCann ; M. Ban ; P. Whittaker ; A. Kemppinen ; P. Weston ; C. Hawkins ; S. Widaa ; J. Zajicek ; S. Dronov ; N. Robertson ; S. J. Bumpstead ; L. F. Barcellos ; R. Ravindrarajah ; R. Abraham ; L. Alfredsson ; K. Ardlie ; C. Aubin ; A. Baker ; K. Baker ; S. E. Baranzini ; L. Bergamaschi ; R. Bergamaschi ; A. Bernstein ; A. Berthele ; M. Boggild ; J. P. Bradfield ; D. Brassat ; S. A. Broadley ; D. Buck ; H. Butzkueven ; R. Capra ; W. M. Carroll ; P. Cavalla ; E. G. Celius ; S. Cepok ; R. Chiavacci ; F. Clerget-Darpoux ; K. Clysters ; G. Comi ; M. Cossburn ; I. Cournu-Rebeix ; M. B. Cox ; W. Cozen ; B. A. Cree ; A. H. Cross ; D. Cusi ; M. J. Daly ; E. Davis ; P. I. de Bakker ; M. Debouverie ; B. D'Hooghe M ; K. Dixon ; R. Dobosi ; B. Dubois ; D. Ellinghaus ; I. Elovaara ; F. Esposito ; C. Fontenille ; S. Foote ; A. Franke ; D. Galimberti ; A. Ghezzi ; J. Glessner ; R. Gomez ; O. Gout ; C. Graham ; S. F. Grant ; F. R. Guerini ; H. Hakonarson ; P. Hall ; A. Hamsten ; H. P. Hartung ; R. N. Heard ; S. Heath ; J. Hobart ; M. Hoshi ; C. Infante-Duarte ; G. Ingram ; W. Ingram ; T. Islam ; M. Jagodic ; M. Kabesch ; A. G. Kermode ; T. J. Kilpatrick ; C. Kim ; N. Klopp ; K. Koivisto ; M. Larsson ; M. Lathrop ; J. S. Lechner-Scott ; M. A. Leone ; V. Leppa ; U. Liljedahl ; I. L. Bomfim ; R. R. Lincoln ; J. Link ; J. Liu ; A. R. Lorentzen ; S. Lupoli ; F. Macciardi ; T. Mack ; M. Marriott ; V. Martinelli ; D. Mason ; J. L. McCauley ; F. Mentch ; I. L. Mero ; T. Mihalova ; X. Montalban ; J. Mottershead ; K. M. Myhr ; P. Naldi ; W. Ollier ; A. Page ; A. Palotie ; J. Pelletier ; L. Piccio ; T. Pickersgill ; F. Piehl ; S. Pobywajlo ; H. L. Quach ; P. P. Ramsay ; M. Reunanen ; R. Reynolds ; J. D. Rioux ; M. Rodegher ; S. Roesner ; J. P. Rubio ; I. M. Ruckert ; M. Salvetti ; E. Salvi ; A. Santaniello ; C. A. Schaefer ; S. Schreiber ; C. Schulze ; R. J. Scott ; F. Sellebjerg ; K. W. Selmaj ; D. Sexton ; L. Shen ; B. Simms-Acuna ; S. Skidmore ; P. M. Sleiman ; C. Smestad ; P. S. Sorensen ; H. B. Sondergaard ; J. Stankovich ; R. C. Strange ; A. M. Sulonen ; E. Sundqvist ; A. C. Syvanen ; F. Taddeo ; B. Taylor ; J. M. Blackwell ; P. Tienari ; E. Bramon ; A. Tourbah ; M. A. Brown ; E. Tronczynska ; J. P. Casas ; N. Tubridy ; A. Corvin ; J. Vickery ; J. Jankowski ; P. Villoslada ; H. S. Markus ; K. Wang ; C. G. Mathew ; J. Wason ; C. N. Palmer ; H. E. Wichmann ; R. Plomin ; E. Willoughby ; A. Rautanen ; J. Winkelmann ; M. Wittig ; R. C. Trembath ; J. Yaouanq ; A. C. Viswanathan ; H. Zhang ; N. W. Wood ; R. Zuvich ; P. Deloukas ; C. Langford ; A. Duncanson ; J. R. Oksenberg ; M. A. Pericak-Vance ; J. L. Haines ; T. Olsson ; J. Hillert ; A. J. Ivinson ; P. L. De Jager ; L. Peltonen ; G. J. Stewart ; D. A. Hafler ; S. L. Hauser ; G. McVean ; P. Donnelly ; A. Compston
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-08-13Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Alleles ; Cell Differentiation/immunology ; Europe/ethnology ; Genetic Predisposition to Disease/*genetics ; Genome, Human/genetics ; Genome-Wide Association Study ; HLA-A Antigens/genetics ; HLA-DR Antigens/genetics ; HLA-DRB1 Chains ; Humans ; Immunity, Cellular/genetics/*immunology ; Major Histocompatibility Complex/genetics ; Multiple Sclerosis/*genetics/*immunology ; Polymorphism, Single Nucleotide/genetics ; Sample Size ; T-Lymphocytes, Helper-Inducer/cytology/immunologyPublished by: -
2Articles: DFG German National LicensesBayat, A. ; Walter, J. ; Lamb, H. ; Marino, M. ; Ferguson, M. W. J. ; Ollier, W. E. R.
Oxford, UK : Blackwell Science Ltd
Published 2005Staff ViewISSN: 1744-313XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineNotes: In this study, we investigated the presence of mutations within the mitochondrial genome in 40 Caucasian subjects using an enhanced multiplex denaturing high-performance liquid chromatography (DHPLC) approach. The enhanced DHPLC approach has increased sensitivity and throughput, and reduced analysis time per individual sample compared to conventional methods. This technique involved amplifying the mitochondrial genome in 18 fragments ranging in size from 300 to 2000 bp using a novel proofreading polymerase (OptimaseTM, Transgenomic Inc., Omaha, NE) with a low misincorporation rate. Fourteen of these fragments underwent subsequent restriction digestion using a combination of five restriction enzymes to enable multiplex DHPLC analysis; the remaining four underwent conventional DHPLC. Using this complete mitochondrial genome-screening approach, we confirmed a number of previously reported mutations and additionally identified a large number of novel mutations using an enhanced DHPLC technique.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesVENCOVSKY, J. ; MAGEED, R. A. ; OLLIER, W. E. ; MAINI, R. N.
Oxford, UK : Blackwell Publishing Ltd
Published 1995Staff ViewISSN: 1365-3083Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: The degree of polyclonal RF heterogeneity was assessed in diseased and non-diseased twins with rheumatoid arthritis (RA). The distribution of variable region determinants encoded by a set of immunoglobulin germline, or minimally mutated germline, genes within IgM RF, IgG RF and IgA RF isotypes was determined by ELISA using specific mouse monoclonal antibodies (MoAb) in fractionated plasma from 12 members of six monozygotic twin pairs with RA, The results reveal that at least 40% (range ∼ 18–87%) of IgM RF are encoded by a small set of ∼ 10 genes from the VH1, 3 and 4 families. Furthermore, a significant proportion of IgG RF and IgA RF (∼ 30%) are also encoded by these same genes. Comparison with RF-negative fractions of immunoglobulins showed that the examined variable region determinants were overrepresented in the RF fractions.The level of expression of the variable region determinants in RF were generally similar within twins but different between unrelated twin pairs irrespective of disease status. The variability of VH gene usage between unrelated individuals suggests that the level of expression and regulation of the variable region determinants may be genetically regulated or influenced by common environmental factors.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesBayat, Ardeshir ; Bock, O. ; Mrowietz, U. ; Ollier, W. E. R. ; Ferguson, M. W. J.
Oxford, UK; Malden, USA : Munksgaard International Publishers
Published 2004Staff ViewISSN: 1600-0625Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract: Keloid disease (KD) is an abnormal form of scarring with a familial predisposition. Genetic studies have yet to identify the genes involved in KD. Transforming growth factor β (TGF-β) has multiple cellular activities including cellular proliferation, differentiation and extracellular matrix production. TGF-β family members such as TGF-β1 and TGF-β2 are known to be involved in KD formation. However, we previously demonstrated a lack of association between common TGF-β1 and TGF-β2 polymorphisms and KD. Other studies have implicated TGF-β receptors in KD pathogenesis. TGF-β receptors were therefore selected as candidate-susceptibility genes for this condition. Single-nucleotide polymorphisms (SNPs) in TGF-β receptors I, II and III (TGF-βRI, TGF-βRII and TGF-βRIII) were identified and investigated for association with the risk of developing KD. A polymerase chain reaction-restriction fragment length polymorphism method was used for genotyping novel and known TGF-β receptor polymorphisms. DNA samples from 92 KD cases and 181 controls were examined. There were no statistically significant differences in genotype or allele frequency distributions between cases and controls for the TGF-β receptor SNPs. Therefore, these TGF-β receptor polymorphisms are unlikely to be associated with keloid scarring. It is possible that other SNPs in other TGF-β family members are associated with KD. To our knowledge, this is the first report of a case-control association study with KD and TGF-β receptor gene polymorphisms.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesStaff View
ISSN: 1744-313XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineNotes: We have developed a simple and rapid non-radioactive technique for HLA-DR4 subtyping. A multiplex ARMS-RFLP (Amplification Refractory Mutation System – Restriction Fragment Length Polymorphism) system allows HLA-DR4 subtyping by analysis of the products of two multiplex ARMS reaction mixtures. For some cases, restriction enzyme digests (Hae II and/or Sac II) of the products are analysed. The technique relies on the fact that an ARMS primer with a mismatch at its 3′-end with respect to the template will not be elongated under PCR conditions. Hence, by designing ARMS primers such that different HLA-DR4 alleles yield PCR products of different lengths, only two reactions, each using a mixture of different ARMS primers, are sufficient to type all of the known HLA-DR4 alleles. This system can distinguish between HLA-DR4 ‘homozygotes’ and ‘heterozygotes’ since every HLA-DR4 allele can be detected. The ARMS conditions were optimized using DNA from cell lines. This technique has now been used to type a panel of rheumatoid arthritis patients and controls.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 1744-313XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineType of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesAwomoyi, A. A. O. ; Donn, R. P. ; Davies, E. J. ; Carthy, D. ; Thomson, W. ; Ollier, W. E. R.
Oxford, UK : Blackwell Publishing Ltd
Published 1995Staff ViewISSN: 1744-313XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineNotes: We have characterized TAP allele frequencies in a panel of 71 Yoruba Nigerians using ARMS-PCR. With the exception that TAP 2D was absent in Nigerians, TAP 2 allele frequencies in this population were found to be similar to those in a UK white population. HLA-DR4 also was found to be at a low frequency in Yoruba Nigerians (1.4%). This may reflect the absence of TAP 2D in Nigerians as DR4 and TAP 2D are in linkage disequilibrium in UK Caucasoids.The most frequent TAP 1 allele in Yoruba Nigerians was TAP 1A (49%). However, this value will be an underestimate as TAP1 alleles could not be unequivocally assigned in 41 % of subjects using the ARMS-PCR methodology.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesDonn, R. P. ; Davies, E. J. ; Thomson, W. ; Hillarby, M. C. ; Ollier, W. E. R.
Oxford, UK : Blackwell Publishing Ltd
Published 1994Staff ViewISSN: 1744-313XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineNotes: The authors determined the allele frequencies of the TAP1 and TAP2 transporter genes in a healthy UK Caucasoid population by ARMS-PCR. TAP1A was the most frequent TAP1 allele by far, being present in 76% of subjects. TAP1 alleles could not be assigned in 24% of subjects, since the combinations TAP 1 A/1B and TAP1C/1D cannot be separated. TAP2A was the most frequent TAP2 alleles (75% of subjects) followed by TAP2B (43%), TAP2C (11%), TAP2D (8%) and TAP2E (6%). The authors also identified an individual with a previously undescribed TAP2 allele, TAP2H (isoleucine at amino acid [aa] 379, alanine at aa 565, alanine at aa 665).It was not possible to assign unequivocally TAP2 alleles in 15 individuals (9%) as TAP2A/D and TAP2C/E cannot be distinguished from each other.To address this problem a separate study of families of rheumatoid arthritis (RA) patients selected for this ambiguity were studied. In all five informative families, TAP2A/2D was confirmed as the combination present.In the population studied no evidence was found for linkage disequilibrium between TAP1 and TAP2 or between the TAP genes and HLA-DP. There was no evidence for extensive linkage disequilibrium between the TAP genes and HLA-DQ/DR, although TAP2B was associated with DR1 (Δ= 0.056, corrected P 〈 0.01) and TAP2D with DR4 (Δ= 0.018). In the RA families studied, TAP2D was found on DRB1 *0401 -bearing haplotypes.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesCarthy, D. ; Ollier, W. ; Papasteriades, C. ; Pappas, H. ; Thomson, W.
Oxford, UK : Blackwell Publishing Ltd
Published 1993Staff ViewISSN: 1744-313XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineNotes: Previous serological studies of Greek rheumatoid arthritis (RA) patients have failed to demonstrate an association with DR4. Using sequence specific oligonucleotide typing we have identified the DRB1 alleles in panels of Greek RA patients and controls.When patient and control HLA-DRB1 frequencies were compared, significantly higher frequencies of DRBl*0101 (23.3% vs. 7.0%, odds ratio [OR] 4.0, 95% confidence intervals [CI] 1.4-12.0) and DRB1 *1001 (20.9% vs. 5.8%, OR 4.3,95% CI 1.3-13.7) were found in RA patients compared with controls. No association of DRB1*04 with RA was observed (20.9% vs. 14.0% in controls) confirming earlier reports. However DRB1*04 subtyping demonstrated a small but significant increase of DRB1*0405 in patients (14.0% vs. 3.5%, OR 4.5, 95% CI 1.1-18.9).When the frequency of individuals carrying the shared RA susceptibility epitope was compared between patients and controls it was found to be significantly higher in RA patients (60.5% vs. 22.1%, OR 5.4, 95% CI 2.4-12.0). We conclude that the shared epitope is significantly associated with RA in this population, but that it is predominantly accounted for by DRB 1*0101 and DRB1*1001.Previous studies of UK RA patients have demonstrated a negative association of DR2 with disease and articular erosions. HLA-DR2 variants, DRB1*1501 and *1502 are not at reduced frequency in Greek RA patients (DRB1*7507, 14.0% in patients vs. 7.0% in controls; DRB1*1502, 7.0% in patients vs. 7.0% in controls). Genes conferring RA resistance may be in linkage disequilibrium with DR2 in UK patients. This does not appear to be the case in Greek RA patients.No association was seen between RA and HLA-DPB1 type.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStevenson, J. ; Langley, K. ; Pay, H. ; Payton, A. ; Worthington, J. ; Ollier, W. ; Thapar, A.
Oxford, UK : Blackwell Publishing
Published 2005Staff ViewISSN: 1469-7610Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicinePsychologyNotes: Background: Attention deficit/hyperactivity disorder (ADHD) and reading disability (RD) tend to co-occur and quantitative genetic studies have shown this to arise primarily through shared genetic influences. However, molecular genetic studies have shown different genes to be associated with each of these conditions. Neurobiological studies have implicated noradrenergic function in the aetiology of ADHD that is comorbid with RD. This paper examines the neurobiological evidence and presents preliminary testing of the hypothesis that the ADRA2A receptor gene is contributing to ADHD and comorbid RD.Methods: One hundred and fifty-two children (140 boys, 12 girls) of British Caucasian origin, aged between 6 and 13 years and with a diagnosis of ADHD, were recruited. The children's reading ability was tested. Children were identified as having ADHD or ADHD plus RD (n = 82). DNA was available for 110 parent child trios and 42 parent child duos. Genotyping was undertaken for an ADRA2A polymorphism.Results: For those with ADHD plus RD there was evidence of association with the alpha 2A adrenergic receptor (ADRA2A) polymorphism with the G allele being preferentially transmitted.Conclusions: The preliminary evidence together with other neurobiological research findings suggests that the ADRA2A gene may contribute to comorbid ADHD and RD and needs to be properly examined.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1744-313XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesKollintza, A. ; Worthington, J. ; John, S. ; Ollier, W. E. R. ; Hajeer, A. H.
Springer
Published 1998Staff ViewISSN: 1432-1211Keywords: Key words IL-5Rα ; Promoter ; Polymorphism ; RFLPSource: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineType of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesCraddock, T. P. ; Zumla, A. M. ; Ollier, W. E. R. ; Chintu, C. Z. ; Muyinda, G. P. ; Lancaster, F. C. ; Boylston, A. W.
Springer
Published 2000Staff ViewISSN: 1432-1211Keywords: Key words T-cell antigen receptor ; Polymorphism ; β-chain ; Variable-region geneSource: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Abstract The human T-cell antigen receptor (TCR) is the counter-receptor for the HLA/peptide complex displayed on the surface of antigen-presenting cells. It confers antigen specificity on T lymphocytes and therefore plays a central role in pathogen recognition and host response. The most frequently used form of the TCR is a heterodimer composed of variable α and β chains. We investigated allele frequencies for four variable-region gene segments of the β chain (2S1, 3S1, 8S3, and 15S1) in 146 Caucasians and 165 Africans. The results reveal significant unexpected differences between the two populations for allele frequencies, phenotypes, genotypes, and haplotypes. Among Caucasians, there are 43 phenotypes, whereas there are 31 among the Africans studied. There are 17 haplotypes in the Caucasian sample but only 10 in Africans. This loss of diversity is largely due to the high frequency of one haplotype in the African sample which represents 65% of the informative chromosomes. At least one copy of this haplotype is present in 90% of informative individuals. As a result, 29% of Africans are homozygous for the common haplotype. Less genetic diversity at TCRBV is unexpected, since Africans usually show greater genetic diversity than other ethnic groups. For example, there are approximately twice as many HLA haplotypes in Africans compared to Caucasians. Homozygosity is also unexpected because it reduces the number of TCR variants available to recognize HLA pathogen-derived peptide complexes.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesSpector, T. D. ; Ollier, W. ; Perry, L. A. ; Silman, A. J. ; Thompson, P. W. ; Edwards, A.
Springer
Published 1989Staff ViewISSN: 1434-9949Keywords: Rheumatoid Arthritis ; Ankylosing Spondylitis ; Testosterone ; HLASource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Summary A crosssectional study of testosterone levels in 276 males was undertaken. Of these 87 were RA patients, 48 males with AS and 141 were healthy controls. Free and serum testosterone levels were significantly lower in the RA males than in either the AS group or the healthy controls (p 〈 0.001). This difference was unaffected by age. No differences were seen in testosterone levels between DR1 or DR4 RA patients compared to those without these antigens. No evidence of hyperandrogenicity was seen in the AS group. The finding that males with RA have lower androgen levels than both normal controls and a disease group with inflammatory spondarthritis supports the hypothesis that male sex hormones may be a protective factor against the development of RA.Type of Medium: Electronic ResourceURL: