Searchable abstracts of presentations at key conferences in endocrinology

ea0090p149 | Pituitary and Neuroendocrinology | ECE2023

Is a 20% decrease in free T4 (fT4) levels a reliable marker of secondary hypothyroidism in patients with non-functioning pituitary macroadenoma (NFPA)?

McLaren David , Mitchell Ellen , Z Safdar Nawaz , Gibbons Stephen , D Murray Robert

Background: Central hypothyroidism can be difficult to diagnose as TSH values often reside within the normal range. The Endocrine Society clinical guideline for hormone replacement in hypopituitarism suggests levothyroxine is indicated for treatment of secondary hypothyroidism where fT4 levels decrease by ≥20%. To determine the reliability of this biochemical marker of secondary hypothyroidism we evaluated evolution of TFTs over time within a cohort of NFPA.<p class=...

ea0034p366 | Steroids | SFEBES2014

Testosterone regulates glucose control in liver and muscle of Tfm mice as a mechanism to improve type 2 diabetes

Kelly Daniel , Akhtar Samia , Muraleedharan Vakkat , Sellers Donna , Brooke Johnathan , McLaren David , Jones Hugh

Introduction: There is a strong association between testosterone deficiency and the incidence of type 2 diabetes (T2D) in men. Physiological testosterone replacement (TRT) improves insulin resistance and glycaemic control in hypogonadal men. The mechanism by which testosterone mediates these beneficial actions are unknown but may be due to an effect on major metabolically active tissues such as liver and muscle. This study investigates the expression of key regulatory targets ...

ea0032p174 | Cardiovascular Endocrinology &amp; Lipid Metabolism | ECE2013

Testosterone differentially regulates liver X receptor expression and targets of lipid and glucose metabolism in liver, muscle and adipose tissue of the testicular feminised mouse

Kelly Daniel , Akhtar Samia , Muraleedharan Vakkat , Brooke Johnathan , McLaren David , Channer Kevin , Jones T Hugh

Testosterone deficiency increases risk for cardiovascular disease (CVD) and type 2 diabetes. Testosterone replacement (TRT) improves insulin resistance, glycaemic control and cholesterol in hypogonadal men. Liver X receptor (LXR) is a nuclear receptor which regulates lipid and glucose metabolism. LXR agonists protect against atherosclerosis but cause hepatic steatosis. We have previously shown that TRT protects against hepatic steatosis and atherosclerosis in high-fat diet-fed...

ea0094p3 | Adrenal and Cardiovascular | SFEBES2023

Assessing the Impact of Residual Adrenal Function on the prevalence of adrenal crises and intercurrent infections

Lynch Julie , McLaren David , Cassidy Samantha , Kyriakakis Nikolaos , Seejore Khyatisha , Murray Robert

Objective: Determinants of why only a subset of patients with adrenal insufficiency (AI) experience recurrent adrenal crises (AC) and intercurrent illnesses are not well understood. This study aimed to identify whether residual adrenal function (RAF), defined by the peak response to a provocative test undertaken before commencing glucocorticoids, may help explain differences in prevalence.Design and Methods: Patients wit...

ea0094op1.3 | Neuroendocrinology and Pituitary | SFEBES2023

Biochemical control does not improve functional impairment in people with acromegaly

Z Safdar Nawaz , Heague Megan , Hebden Sophie , Lynch Julie , Mclaren David , Tresoldi Alberto , Lithgow Kirstie , Urwyler Sandrine , Akbar Shahzad , McLoughlin Katie , Kearney Tara , Drake William M. , Sathyapalan Thozhukat , Orme Steve , E Higham Claire , Karavitaki Niki , Kyriakakis Nikolaos , Murray Robert

Acromegaly, a chronic disorder of excessive growth hormone secretion, leads to functional limitation and impaired mobility most commonly due to arthropathy. Patients with biochemically controlled acromegaly have reported persistent impairment in prior studies. We aimed to compare the functional differences in patients with biochemically controlled acromegaly to those with uncontrolled disease by means of validated questionnaires. Between March 2017 and May 2022, patients over ...

ea0094p233 | Neuroendocrinology and Pituitary | SFEBES2023

Characterisation of the Impact of Joint Pain on Patients with Acromegaly

Hebden Sophie , Safdar Nawaz , Heague Megan , Lynch Julie , Mclaren David , Tresoldi Alberto , Lithgow Kirstie , Urwyler Sandrine , Akbar Shahzad , McLoughlin Katie , Kearney Tara , M Drake William , Sathyapalan Thozhukat , Orme Steve , E Higham Claire , Karavitaki Niki , Kyriakakis Nikolaos , Murray Robert

Acromegaly is caused by excessive growth hormone (GH) and insulin-like growth factor (IGF-1) secretion. Arthropathy is a leading cause of morbidity and impaired quality of life in acromegalic patients, often persisting despite therapeutic interventions and biochemical control. This cross-sectional study aimed to characterise the extent and impact of arthropathy in terms of pain and functional impairment. Validated questionnaires, including DASH (Disabilities of the Arm, Should...

ea0094oc3.5 | Neuroendocrinology and Pituitary | SFEBES2023

The effects of biochemical control and Arthropathy on Quality of Life in patients with Acromegaly: a cross-sectional study

Megan Heague , Nawaz Safdar , Sophie Hebden , Julie Lynch , David McLaren , Alberto Tresoldi , Kirstie Lithgow , Sandrine Urwyler , Shahzad Akbar , Katie McLoughlin , Tara Kearney , William M. Drake , Thozhukat Sathyapalan , Steve Orme , Claire E. Higham , Niki Karavitaki , Nikolaos Kyriakakis , Robert D. Murray

One of the most prevalent clinical manifestations of acromegaly is arthropathy which persists despite adequate symptom and biochemical control, and contributes to impaired quality of life. Patients with acromegaly have high psychiatry morbidity and increased prevalence of depression and poor psychological wellbeing. In a large cohort we aim to determine the effects of joint disease and disease control on quality of life in acromegaly. Eighty-five patients (45 women; median age...

ea0090p288 | Adrenal and Cardiovascular Endocrinology | ECE2023

Symptoms and Steroid Dose Adjustments Associated with the SARS-CoV-2 Vaccine in Patients with Adrenal Insufficiency

McLaren David , Crowe Grace , Cassidy Christine , Rasool Irum , elsabbagh mohamed , Eyadeh Ahmad , Poe Poe Han Htwe Nang , Gerrard Melinda , Ward Emma , Kassim Saifuddin , Abbas Afroze , Al-Qaissi Ahmed , M Orme Steve , Seejore Khyatisha , Kyriakakis Nikolaos , Maguire Deirdre , Lynch Julie , D Murray Robert

Background: Following vaccination for SARS-CoV-2 a significant proportion of individuals experience moderate to severe symptoms. In patients with adrenal insufficiency (AI) this has been reported to translate in to need for increased glucocorticoids and incipient or frank adrenal crises. We assessed occurrence of symptoms, need for glucocorticoid dose adjustment and crises in a large cohort of patients with AI following vaccination for SARS-CoV-2.Methods...

ea0086p92 | Neuroendocrinology and Pituitary | SFEBES2022

Natural history of non-functioning pituitary microadenomas – results from the UK NFA consortium

Hamblin Ross , Fountas Athanasios , Lithgow Kirstie , Loughrey Paul Benjamin , Bonanos Efstathios , Khalid Shinwari Shah , Mitchell Kirsten , Shah Syed , Grixti Lydia , Matheou Mike , Isand Kristina , McLaren David , Surya Ashutosh , Zubair Ullah Hafiz , Klaucane Katarina , Jayasuriya Anuradha , Bhatti Sumbal , Mavilakandy Akash , Ahsan Masato , Mathew Susan , Hussein Ziad , Jansz Thijs , Wunna Wunna , Ayuk John , Abraham Prakash , Drake William , Brooke Antonia , Baldeweg Stephanie E. , Sam Amir H. , Martin Niamh , Higham Claire , Reddy Narendra , Ahluwalia Rupa , Newell-Price John , Vamvakopoulos Joannis , Krishnan Amutha , Lansdown Andrew , Murray Robert D , Pal Aparna , Bradley Karin , Mamoojee Yaasir , Purewal Tejpal , Panicker Janki , Marie Freel E , Hasan Faisal , Kumar Mohit , Jose Biju , Hunter Steven , Karavitaki Niki

Background: The published data on the natural history of (presumed) non-functioning pituitary microadenomas (micro-NFAs) is possibly compromised by small sample sizes, short follow-up and inclusion of cases with other pathologies in the analyses.Objective: To clarify the long-term outcomes of micro-NFAs in a large cohort of patients.Methods: We conducted a multi-centre, retrospective, cohort study involving 22 UK endocrine departme...