Endocrine Abstracts

Endometriosis is a common gynaecological condition caused by the abnormal growth of endometrial-like tissue outside the uterus. There are currently no biomarkers validated for non-invasive diagnosis and the exact aetiology is unknown; however, the association between endometriosis and thyroid dysfunction has recently been reported. We aimed to investigate the value of thyroid hormone testing in predicting the odds of an endometriosis diagnosis. Retrospective data was taken fro...

While evidence of concordance between reproductive hormone measurements in venipuncture and capillary serum exists, variation between blood collection tubes has not been investigated. We compared the performance of two capillary and venipuncture blood collection tubes (red and gold top) and assessed variation between two leading tube manufacturers. To compare tube types, venipuncture and finger prick capillary samples were concurrently collected from 11 premenopausal women in ...

The impact of BMI, exercise, smoking, drug and alcohol use on reproductive and thyroid hormones has little or conflicting evidence. We therefore aimed to investigate the association between these factors and serum hormone concentrations. Capillary blood samples were taken from 932 eumenorrheic Hertility Health users on menstrual cycle day 3 between Sept 2020 and June 2022. Serum concentrations of Anti-Müllerian hormone, Estradiol (E2), Luteinising Hormone (LH), Follicle-S...