Searchable abstracts of presentations at key conferences in endocrinology

ea0021p409 | Thyroid | SFEBES2009

Screening of six novel candidate genes for association with Graves' disease

Tisdall Ruth , Simmonds Matthew , Newby Paul , Franklyn Jayne , Gough Stephen , Brand Oliver

Genome wide association screening (GWAS) has proved invaluable in determining otherwise undetected genetic effects for several common endocrine diseases. The largest GWAS performed in Graves’ disease (GD), to date, has not only confirmed association of several known gene regions, including the HLA region, TSHR and FCRL3, but has also identified several other possible regions of association with GD. As GD shares several susceptibility loci with other endocrin...

ea0013oc33 | Society for Endocrinology/Clinical Endocrinology Trust Young Investigator Clinical Prize winner | SFEBES2007

Tag SNP screening of the PDCD1 gene for association with Graves’ disease

Newby Paul , Roberts-Davies Emma , Brand Oliver , Heward Joanne , Franklyn Jayne , Gough Stephen , Simmonds Matthew

In addition to the HLA gene region, two further genes involved in the inhibition of T cell signalling, CTLA-4 and PTPN22, have been consistently associated with autoimmune disease (AID), highlighting the important role played by molecules in this pathway in AID susceptibility. The Programmed Cell Death 1 gene (PDCD1) on chromosome 2q37.3 encodes PD-1 which is involved in providing a negative signal to activated T cells. Large case-control studies have show...

ea0013p325 | Thyroid | SFEBES2007

Preliminary evidence for association of PTPN12 with Graves’ ophthalmopathy

Brand Oliver J , Syed Ateeq A , Franklyn Jayne A , Gough Stephen CL , Heward Joanne M , Simmonds Matthew J

Protein tyrosine phosphatases (PTPs) such as PTPN22, that encodes lymphoid tyrosine phosphatase (LYP), are important regulators of cell signalling. LYP, through interaction with various accessory molecules including Grb2 and Csk kinase, has been shown to be particularly important in regulating signal transduction from the T cell receptor. The identification of PTPN22 as a susceptibility locus for Graves’ disease (GD) led us to hypothesise that other PTPs may...

ea0025p336 | Thyroid | SFEBES2011

Variation in levels of skewed X chromosome inactivation represents a shared pathogenic pathway for the common autoimmune thyroid diseases

Simmonds Matthew , Brand Oliver , Newby Paul , Jackson Laura , Hargreaves Chantal , Carr-Smith Jackie , Franklyn Jayne , Gough Stephen

Graves’ disease (GD) and Hashimotos’ thyroiditis (HT), two of the most common autoimmune thyroid diseases (AITD), are caused by both shared and disease specific genetic determinants. In females one copy of the X chromosome is randomly inactivated, and although inactivation should occur with a parent of origin ratio of 50:50, skewed X chromosome inactivation (XCI) can occur, whereby >80% of a specific copy of the X chromosome is inactivated. Increased skewed XCI i...

ea0021oc5.7 | Steroids and thyroid | SFEBES2009

X chromosome inactivation: the key to the female preponderance in Graves' disease?

Simmonds Matthew , Newby Paul , Jackson Laura , Hargreaves Chantal , Brand Oliver , Carr-Smith Jackie , Franklyn Jayne , Gough Stephen

Graves’ disease (GD) affects >2% of the population and occurs more frequently in females than males. Several hypotheses have been put forward to explain the female preponderance including increased immune responsiveness, gonadal steriods, sex chromosome susceptibility loci and, more recently, skewed X inactivation (XCI). XCI occurs in females causing one of their X chromosomes to be randomly inactivated enabling dosage compensation with males who only have one copy of...