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Bioactive Signaling Molecules

Meaning

Molecules that mediate communication between cells, often involved in physiological regulation, particularly within endocrine pathways. They act as chemical messengers that initiate specific cellular responses upon binding to target receptors. In hormonal health, these include classic hormones, neurotransmitters, and local mediators influencing homeostasis. Understanding their precise concentration and receptor affinity is crucial for assessing endocrine function.