hrp0094p1-102 | Adrenal B | ESPE2021

Correlation of 11-oxygenated C19 androgens with the clinical and biochemical characteristics in premature adrenarche

Yavas Abali Zehra , Eltan Mehmet , Helvacioglu Didem , Yaman Ali , Turan Serap , Bereket Abdullah , Guran Tulay ,

Background: Premature adrenarche (PA) is defined as the appearance of pubic and/or axillary hair in girls younger than 8 years old and caused by the rise in adrenal androgen production including dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEAS), and androstenedione (A4). DHEAS≥40 µg/dL is accepted as the biochemical marker of adrenarche. However, adrenals also produce 11-oxygenated C19 androgens such as 11β-hydroxyandrostene...

hrp0092p1-3 | Adrenals and HPA Axis | ESPE2019

Simplifying the Interpretation of Steroid Metabolome Data by a Machine-Learning Approach

Kirkgoz Tarik , Kilic Semih , Abali Zehra Yavas , Yaman Ali , Kaygusuz Sare Betul , Eltan Mehmet , Turan Serap , Haklar Goncagul , Sagiroglu Mahmut Samil , Bereket Abdullah , Guran Tulay

Background: Liquid chromatography-mass spectrometry (LC-MS) based panels of steroid hormones and their precursors offer a distinct pattern of steroid metabolome for various disorders of adrenal and gonadal steroidogenesis. However, it may not be easy to handle this high throughput data rapidly in clinical setting which requires expert opinion for correct interpretations. Analytical results of steroid panelling can be allied to automated review systems to simpl...

hrp0098rfc4.6 | Adrenals and HPA Axis 1 | ESPE2024

Machine Learning-Based Decision Tree Model for the Diagnosis of Congenital Disorders of Adrenal Steroidogenesis Using LC-MS/MS-based Plasma Steroid Hormone Profiles

Noyan Erçetin Atam , Gurpinar Tosun Busra , Kirkgoz Tarik , Yavas Abali Zehra , Eltan Mehmet , Akbarzade Azad , Yaman Ali , Turan Serap , Bereket Abdullah , Yalcin Arga Kazim , Guran Tulay

Background: Congenital disorders of adrenal steroidogenesis (CDAS) result in various adverse clinical outcomes including adrenal insufficiency, hypertension, androgen excess, or differences in sex development, depending on the specific enzyme deficiency involved. Rapid and precise diagnosis of these conditions facilitates improved short-term and long-term clinical management. The requirement for clinical expertise may lead to delays in the diagnostic process.<...