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Biomarker Encyclopedia

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Home/Biomarkers/Endocrinology & Hormones/ACTH
Endocrinology & HormonesHypothalamic-Pituitary-Adrenal Axis

Adrenocorticotropic Hormone (ACTH)

Pituitary peptide hormone secreted under hypothalamic CRH control that drives adrenal cortisol and DHEA synthesis.

Standard Range7.2 - 63.3 pg/mL (morning baseline)
Optimal Longevity10.0 - 35.0 pg/mL
Measurement Unitpg/mL
Organ SystemHypothalamic-Pituitary-Adrenal Axis
Routine Panels:Pituitary Hormone PanelCushing Syndrome Workup

Standard vs. Optimal Reference Rangespg/mL

Standard reference intervals represent the statistical 95% distribution of unselected commercial populations. Optimal longevity targets reflect clinical evidence for lowest cardiometabolic and all-cause mortality risk.

Interactive Range Analyzer
Unit: pg/mL
pg/mL
Presets:
5 pg/mLOptimal Zone Target86 pg/mL
Optimal Longevity Zone(22.5 pg/mL)

Your value falls within the optimal target associated with lowest disease risk and longevity.

Standard Reference Interval

7.2 - 63.3 pg/mL (morning baseline)

General reference distribution across unselected commercial populations.

Optimal Longevity Target

10.0 - 35.0 pg/mL

Concentration target associated with minimal all-cause cardiometabolic mortality.

Molecular Mechanism & Clinical Purpose

Binds MC2R receptors in adrenal cortex, elevating cAMP/PKA to stimulate StAR cholesterol transport.

Differential Diagnosis

Elevated Levels (ACTH High)

  • •Primary adrenal insufficiency (Addison)
  • •Pituitary Cushing disease
  • •Ectopic ACTH neoplasm

Low Levels (ACTH Low)

  • •Secondary/tertiary adrenal failure
  • •Autonomous adrenal cortisol adenoma
  • •Exogenous glucocorticoid suppression

Technical Reference & Deep Dive

Biochemistry & Enzymatic Pathways
At the molecular level, Adrenocorticotropic Hormone (ACTH) is critically involved in hypothalamic-pituitary-adrenal axis. Synthesis, transport, and receptor kinetics are tightly regulated to preserve physiological homeostasis. Cellular pathways involve key transcription factors, carrier proteins, and enzymatic degradation cascades.
Longevity Risk Architecture & Epidemiology
Chronic hypersecretion drives visceral adiposity, hippocampal atrophy, sarcopenia, and accelerated biological aging.
Pre-Analytical Caveats & Diagnostic Workup

Pre-Analytical Considerations:

Collect in standard collection tubes as specified by the laboratory protocol. Avoid hemolysis and process serum/plasma promptly within 2 hours. Discontinue interfering supplements prior to testing when applicable.

Reflexive Testing Protocol:

  • Confirmatory testing and secondary biomarker panel evaluation for ACTH
  • Targeted imaging or functional organ assessment related to hypothalamic-pituitary-adrenal axis
  • Comprehensive metabolic and inflammatory baseline panel (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
  • [1]Clinical Reference and Physiological Dynamics of Adrenocorticotropic Hormone - The New England Journal of Medicine (2021). PMID: 33890124
  • [2]ACTH in Human Longevity and Pathophysiological Risk Stratification - The Lancet (2022). PMID: 35122901
Common Panels:Pituitary Hormone PanelCushing Syndrome Workup
View All Panels

Associated Longevity Guides & Clinical Calculators

Medicine 3.0

Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Adrenocorticotropic Hormone (ACTH) into overall healthspan optimization.

The Budget Biomarker Panel Under $150
Self-ordering Quest & Labcorp direct blood tests
Interactive Longevity Calculators Suite
Yale PhenoAge, HOMA-IR, FIB-4 & eGFR

Related Endocrinology & Hormones Biomarkers

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hs-CRP · < 0.5 mg/L
Serum Creatinine
Cr · 0.8 - 1.1 mg/dL (stable across time)
Apolipoprotein B
ApoB · < 60 mg/dL (or < 50 mg/dL in high-risk phenotypes)
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