Searchable abstracts of presentations at key conferences in endocrinology

ea0092op-04-03 | Oral Session 4: Young Investigators / Clinical and Translational | ETA2023

Long-Term outcome of the thyroid function in graves’ disease: a nationwide danish register study

Sophia Eriksen Anine , Folkestad Lars , Brix Thomas , Joop Bonnema Steen

Background: Little is known about the long-term outcome of the thyroid function in Graves’ disease in a large epidemiological setting.Objective: The aim was to evaluate the long-term outcome of the thyroid function in patients diagnosed with Graves’ disease in Denmark in the period 1995-2018. Our research objectives were to investigate the incidence of disease, use of antithyroid drugs, radioactive iodine, thyroidectomy and levothyroxine during...

ea0032p980 | Thyroid (non-cancer) | ECE2013

Is previous hyperthyroidism associated with long-term cognitive dysfunction? A twin study

Lillevang-Johansen Mads , Petersen Inge , Christensen Kaare , Hegedus Laszlo , Brix Thomas

Introduction: Hyperthyroidism has been suggested to adversely affect cognitive function. However, this association could also be caused by genetic and environmental factors affecting both the development of hyperthyroidism and cognitive functioning. By investigating cognitive function within twin pairs discordant for hyperthyroidism, this potential confounding can be minimized. The aim of this study was to examine if hyperthyroidism is associated with long-term cognitive dysfu...

ea0032p984 | Thyroid (non-cancer) | ECE2013

Both Graves' disease and toxic nodular goiter are associated with increased mortality but differ with respect to the cause of death: a Danish population-based register study

Brandt Frans , Thvilum Marianne , Almind Dorthe , Christensen Kaare , Green Anders , Hegedus Laszlo , Heiberg Brix Thomas

Background: Hyperthyroidism has been associated with increased all-cause mortality. Whether the underlying cause of hyperthyroidism influences this association is unclear. Our hypothesis was that Graves’ disease (GD) and toxic nodular goiter (TNG) differ with respect to mortality risk and cause of death.Methods: An observational cohort study, using record-linkage data from nation-wide Danish health registers. 1.291 and 861 subjects with GD and TNG, ...

ea0032p986 | Thyroid (non-cancer) | ECE2013

Type and extent of morbidity before and after the diagnosis of hypothyroidism: a nationwide register-based study

Thvilum Marianne , Brandt Frans , Almind Dorthe , Christensen Kaare , Hegedus Laszlo , Heiberg Brix Thomas

Background: Hypothyroidism has been linked with an increased risk of morbidity such as cardiovascular disease and diabetes mellitus. However, it is unknown whether the burden of morbidity is present before or after the diagnosis of hypothyroidism.Aim: Evaluate the temporality and type of morbidity in hypothyroid patients.Methods: Observational cohort study. Based on record-linking between official Danish health registers 2822 subje...

ea0092op-10-05 | Oral Session 10: Novel diagnostics in Thyroid cancer | ETA2023

Hypothyroidism and the risk of cancer: a danish register-based long-term follow-up study

Riis Thea , Neergaard Pettersen Frida , Joop Bonnema Steen , Brix Thomas , Folkestad Lars

Objective: Globally, cancer is one of the leading causes of death. Therefore, identification of risk factors is of paramount interest. Whether thyroid dysfunction is a cancer risk factor is currently being debated. The aim of this study was to evaluate the risk of cancer in patients diagnosed with hypothyroidism.Methods: This is a register-based nationwide cohort study of individuals diagnosed with hypothyroidism referred to Danish hospitals (followed fr...

ea0084ps1-05-43 | Miscellaneous | ETA2022

Treatment of hyperthyroidism reduces the systemic oxidative stress load, as measured by biomarkers of rna and dna damage

Bogelund Larsen Camilla , Ryom Riis Kamilla , Hillert Winter Kristian , List Larsen Emil , Ellervik Christina , Hegedus Laszlo , Brix Thomas , Enghusen Poulsen3 Henrik , Joop Bonnema Steen

Background: Increased oxidative stress has been linked to both hypo- and hyperthyroidism. Whole-body oxidative stress can be estimated by the oxidized guanine nucleosides, 8-oxo-7,8-dihydroguanosine (8-oxoGuo) and 8-oxo-7,8-dihydro-2’-deoxyguanosine (8-oxodG), derived from RNA and DNA, respectively. These biomarkers have been associated with increased morbidity and mortality in several diseases but are not well explored in humans with thyroid disorders.<p class="abste...

ea0070aep875 | Thyroid | ECE2020

Treatment of hyperthyroidism reduces the systemic oxidative stress load, as measured by biomarkers of RNA and DNA damages

Larsen Camilla , Ryom Riis Kamilla , Hillert Winter Kristian , List Larsen Emil , Ellervik Christina , Hegedüs Laszlo , Brix Thomas , Enghusen Poulsen Henrik , Joop Bonnema Steen

Background: Increased oxidative stress has been linked to both hypo- and hyperthyroidism. Whole-body oxidative stress can be estimated by the oxidized guanine nucleosides, 8-oxo-7.8-dihydroguanosine (8-oxoGuo) and 8-oxo-7.8-dihydro-2’-deoxyguanosine (8-oxodG), derived from RNA and DNA, respectively. These biomarkers have been associated with increased morbidity and mortality in several diseases but are not well explored in humans with thyroid disorders.<p class="abst...

ea0070ep516 | Thyroid | ECE2020

Treatment of hypothyroidism does not affect whole-body oxidative stress, as measured by biomarkers of RNA and DNA damage

Ryom Riis Kamilla , Larsen Camilla , Winther Kristian H. , Larsen Emil L. , Ellervik Christina , Hegedüs Laszlo , Brix Thomas , Poulsen Henrik E. , Bonnema Steen J.

Background: Hyperthyroidism as well as hypothyroidism have been associated with oxidative stress, caused by an imbalance between pro-oxidants and antioxidants. Oxidative stress may damage the genomic apparatus and other cellular structures. Urinary excretion of 8-oxo-7.8-dihydroguanosine (8-oxoGuo) and 8-oxo-7.8-dihydro-2’-deoxyguanosine (8-oxodG), respectively, represent global RNA and DNA oxidation, thus reflecting oxidatively generated modification of nucleic acids in...

ea0084ps2-06-53 | Hypothyroidism Treatment | ETA2022

Whole-body oxidative stress measured by biomarkers of RNA and DNA damage is higher in hypothyroid women, even after treatment, than in healthy individuals, measured by biomarkers of RNA and DNA damage

R. Riis Kamilla , B. Larsen Camilla , R. Medici Bjarke , Jensen Christian Z. , H. Winter Kristian , L. Larsen Emil , Bronden Andreas , Ellervik Christina , L. la Cour Jeppe , Hegedus Laszlo , H. Brix Thomas , E. Poulsen Henrik , Faber Jens , K. Knop Filip , Nygaard Birte , J. Bonnema Steen

Introduction: Hypothyroidism has been associated with oxidative stress. Urinary excretion of 8-oxo-7,8-dihydroguanosine (8-oxoGuo) and 8-oxo-7,8-dihydro-2’-deoxyguanosine (8-oxodG), respectively, represent whole-body RNA and DNA oxidation. While these biomarkers have been associated with increased morbidity and mortality in various diseases, they have been only sparsely explored in patients with thyroid disorders.Method: In 45 women with newly diagn...