Endocrine Abstracts

Introduction: NICE recommends annual screening for diabetic retinopathy in children with type 1 diabetes aged over 12 years and/or with duration of diabetes over 5 years. This audit aimed to evaluate patient attendance for retinopathy screening, to identify the prevalence of retinopathy and maculopathy and to ascertain characteristics of patients.Methods: This was a retrospective audit of patients attending for eye screening from January 2008 to April 20...

Aims: To compare glycaemic control and weight gain in children with type 1 diabetes changing from twice daily premixed insulin to multiple daily injections (MDI) with either insulin glargine or insulin detemir.Methods: A retrospective study of 41 consecutive children and adolescents with type 1 diabetes, changed to MDI between January 2005 and April 2007, with outcome measures of HbA1C change and body mass index SDS (BMI-SDS) change after 12 months of MD...

Introduction: IGF-I and its binding proteins may modulate cardiovascular risk. As part of our Manchester Mothers’ Cardiovascular study, we tested in pre-menopausal women the hypothesis that higher circulating IGF-I concentrations would be associated with lesser arterial stiffness and lower cardiac (LV) mass, while higher IGFBP1, reflecting less pre-hepatic insulin, would be positively related to small vessel function.Methods: About 193 women aged 32...

A common NOS3 polymorphism (the gene which encodes endothelial nitric oxide synthase), a variable number of tandem repeats within Intron 4 has been associated with cardiovascular disorders in which nitric oxide bioactivity is impaired including myocardial infraction. Consistent characteristic changes in the pressure pulse wave shape have been associated with ageing, risk factors for cardiovascular disease and impaired NO bioactivity. Therefore pulse waveform analysis can be ut...

Background: Multiple endocrine neoplasia type 1 (MEN1) is an inherited cancer syndrome characterized by the development of tumours in at least two of the following three main sites: parathyroid, pituitary and endocrine pancreas. Hyperparathyroidism is the most common presenting feature, with a typical age at onset of 20-25 years, and > 90% penetrance by 40 years. After extended family studies, an index case may have no affected relatives and be apparently 'isolated'. We rep...

Background and Hypothesis:- A common NOS3 Single nucleotide polymorphisms (SNP) (894 G/T) which encodes a Glu298Asp amino acid substitution in endothelial NO synthase has been associated with cardiovascular disorders in which NO bioactivity is impaired. The gene coding for p22phox, a critical component of the NADH/NAD(P)H oxidase enzyme system, a major source of vascular SO, is CYBA. Among the allelic polymorphisms reported in CYBA is C242T, associated wit...

Increased superoxide(SO) production reduces nitric oxide(NO) bioactivity and increases oxidative stress contributing to endothelial dysfunction in vascular disease. The gene coding for p22phox, a critical component of the NADH/NAD(P)H oxidase enzyme system which produces vascular SO, is CYBA. Among the allelic polymorphisms reported in CYBA is C242T which is associated with progression of coronary atherosclerosis. Radial applanation tonometry with pulse waveform analysis (PWA)...

Introduction: T2DM is one of the main causes of morbidity and mortality in the UK. Epigenetic mechanisms impact gene expression and could predispose individuals to a particular metabolic phenotype. We investigated association of LINE-1 methylation (a surrogate of global DNA methylation) with cardiometabolic parameters in a longitudinal cohort of T2DM patients.Methods: Global LINE-1 DNA methylation in blood-derived DNA samples from 795 (men 60%, women 40%...

Introduction: T2DM is one of the main causes of morbidity and mortality in the UK. Epigenetic mechanisms impact gene expression and could predispose individuals to a particular metabolic phenotype. We investigated association of LINE-1 methylation (a surrogate of global DNA methylation) with cardiometabolic parameters in a longitudinal cohort of T2DM patients.Methods: Global LINE-1 DNA methylation in blood-derived DNA samples from 795 (men 60%, women 40%...

Introduction: There is growing evidence of external factors modulating epigenetic modifications and their contribution to the development of obesity and T2DM. One of the epigenetic signatures is DNA methylation. We investigated whether a lifestyle intervention could influence DNA methylation of Brain derived neurotrophic factor (BDNF) in individuals with IGR, as BDNF is thought to play an important role in glucose metabolism.Methods: IGR participants (<e...