The goal of this observational study is to investigate cellular mechanisms of neuroendocrine and metabolic signaling in adult women with anorexia nervosa (AN) compared to healthy controls. The primary purpose is to understand how hypothalamic-like neurons derived from patient samples respond to metabolic hormones and regulate energy homeostasis. The main questions it aims to answer are: Do hypothalamic-like neurons derived from individuals with AN show altered responsiveness to key metabolic hormones compared to neurons derived from healthy controls? Are there differences in cellular metabolism, gene expression profiles, and neuronal activity that reflect disease-relevant neuroendocrine dysfunction? Researchers will compare patient-derived cellular models from individuals with AN to those generated from matched healthy control participants to determine whether differences in hormone responsiveness, metabolic function, and neuronal signaling can be identified. Participants will: Attend a single study visit at a recruiting clinical site Provide a small peripheral blood sample Undergo basic clinical assessment and anthropometric measurements Collected samples will be coded at the recruiting sites and transferred to a central research laboratory, where they will be used to generate induced pluripotent stem cells (iPSCs) and differentiate them into hypothalamic-like neurons. All experimental analyses are conducted in vitro and do not involve any intervention or treatment administered to participants.
Age range
18 Years – 45 Years
Sex
FEMALE
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Change in NPY and α-MSH secretion after hormone exposure in patient-derived hypothalamic-like neurons
Timeframe: Baseline (0 minutes) and at predefined time points up to 24 hours after exposure