Niethormonale

Niethormonale is a term used primarily in speculative biology and science fiction to denote a hypothetical endocrine hormone. It has no standing in established endocrinology and no confirmed chemical identity in peer-reviewed literature.

In fictional treatments, Niethormonale is described as a peptide or small-molecule hormone produced by a neuroendocrine organ in a hypothetical organism. It is said to regulate energy balance, growth, fertility, or stress responses, and to act through receptors distributed in various tissues. The precise signaling pathway and physiological effects vary among authors.

Outside fiction, Niethormonale remains a fictional construct. It is sometimes used to illustrate general principles of hormone action, receptor signaling, and homeostasis or to explore evolutionary questions about endocrine systems in alien life. Because there is no empirical evidence for its existence, it has no basis in medical or biological science.

See also: Hormone; Endocrinology; Peptide hormone; Science fiction biology.