Lever
Lifestyle
- Stress management techniques
- Regular physical activity
- Adequate sleep
- Mindfulness meditation
Blutwerte · Marker
ACTH
Adrenocorticotropin · Adrenocorticotropes Hormon · Corticotropin
Hormone — StressachseZeitabhängig
- Einheit:
- pmol/L
ACTH quantifies the level of adrenocorticotropic hormone in the blood, reflecting pituitary function and adrenal stimulation.
Reference Ranges
Reference
1.6–13.9pmol/L
1.6
13.9
LowNormalHigh
Reference
Unit · pmol/LACTH levels are subject to diurnal variation, peaking in the early morning.
Overview
Übersicht
Adrenocorticotropic hormone (ACTH) is a peptide hormone produced by the anterior pituitary gland. It plays a crucial role in the hypothalamic-pituitary-adrenal (HPA) axis by stimulating the adrenal glands to produce cortisol, a glucocorticoid involved in stress responses, metabolism, and immune function. Clinically, ACTH measurement is vital in diagnosing disorders like Cushing's disease, characterized by excessive ACTH production, and Addison's disease, marked by insufficient adrenal hormone production. Elevated ACTH levels can indicate pituitary adenomas, while low levels may suggest adrenal insufficiency. In the context of athletic performance and biohacking, ACTH and cortisol levels are monitored to assess stress and recovery. Chronic stress can lead to dysregulation of the HPA axis, impacting performance and overall health. Researchers found that ACTH levels can be influenced by psychological stressors, time of day, and individual physiological variations. Testing should consider these factors, as ACTH exhibits diurnal variation, peaking in the early morning. Fasting is not required, but consistent timing of tests is recommended to ensure comparability. Confounders include recent stress, illness, and certain medications, which can skew results.
Klinische Bedeutung
Elevated ACTH levels may indicate Cushing's disease or ectopic ACTH syndrome, while reduced levels suggest primary adrenal insufficiency or secondary adrenal insufficiency due to pituitary dysfunction.
Dynamics
Trend Interpretation
Rising Values
Progressively rising ACTH levels may suggest worsening pituitary or adrenal disorders. Re-test in 4 weeks if outside the optimal range.
Falling Values
Progressively falling ACTH levels may indicate improvement in conditions like Cushing's disease or response to treatment.
Re-test Interval
4 weeks if outside optimal range
Etiology
Causes — High & Low
Cause
Elevated Levels
- Cushing's disease
- Ectopic ACTH syndrome
- Chronic stress
- Pituitary adenoma
- Adrenal insufficiency
Cause
Low Levels
- Primary adrenal insufficiency
- Secondary adrenal insufficiency
- Exogenous steroid use
- Hypopituitarism
- Adrenal tumors
Protocol
How to Optimize
Lever
Nutrition
- Balanced diet rich in whole foods
- Adequate hydration
- Omega-3 fatty acids
- Antioxidant-rich foods
Note:
Consult a healthcare provider before making significant lifestyle or dietary changes, especially if managing a health condition.
Testing Guidelines
✓Fasting Not Required
🕐Time-Sensitive
ACTH peaks in the early morning; consistent timing is crucial for comparability.
Testing Frequency
Annually for those with adrenal or pituitary disorders, or as recommended by a healthcare provider.
Interfering Factors
- Recent stress
- Illness
- Certain medications
Related Markers
Related Peptides & Hormones
Cortisol
hormoneCorrelated with
Open Research Questions
Current research suggests that the relationship between salivary cortisol and plasma ACTH levels is not linear, indicating potential confounders in stress assessments. Researchers have not yet established optimal reference ranges for ACTH in various populations, particularly in equine and canine studies. Additionally, clinical questions remain unanswered regarding the best diagnostic thresholds for ACTH in conditions like Cushing's disease and hypoadrenocorticism, as well as the impact of psychological stressors on ACTH responses.
23 Research Publications
7,802
Total Citations
3
Human/RCT
107.2
Avg. Influence
2023
Latest
Sort
Filter
01Top
#01
Acute stressors and cortisol responses: a theoretical integration and synthesis of laboratory research.
Meta-AnalysisInfluence482.0
5797
This meta-analysis reviewed studies on acute psychological stressors and their effects on cortisol levels. Researchers observed that tasks characterized by uncontrollable and social-evaluative elements elicited the largest cortisol and ACTH changes.
02Top
#02
Salivary cortisol as a biomarker in stress research.
ReviewInfluence49.0
1840
Researchers found that salivary cortisol is commonly used as a biomarker for psychological stress, but its relationship with plasma ACTH and cortisol is not always linear. The study highlights various biological factors that may influence these measurements.
03Top
#03
Cushing's disease.
Review
59
This study focused on Cushing's disease, which results from pituitary ACTH hypersecretion. Researchers found that the initial diagnostic step is documenting hypercortisolism, followed by identifying the cause, often through imaging and surgical intervention.
04
#04
Canine hypoadrenocorticism: pathogenesis, diagnosis, and treatment.
AnimalInfluence3.0
55
This study examined hypoadrenocorticism in dogs, a condition caused by immune-mediated destruction of adrenal glands. Researchers found that definitive diagnosis requires ACTH stimulation testing to demonstrate low cortisol levels. The prognosis is good with appropriate supplementation.
05
#05
Cushing’s disease and melancholia.
Review
13
This study explored the similarities between Cushing's disease and melancholic depression, noting shared laboratory abnormalities such as ACTH hypersecretion. Researchers suggest that dynamic endocrine tests may help differentiate between the two conditions.
06
#06
Diagnosis of equine pituitary pars intermedia dysfunction.
Review
11
Researchers examined equine pituitary pars intermedia dysfunction (PPID) and found that basal ACTH concentration is crucial for diagnosis. The study emphasizes the importance of combining clinical judgment with diagnostic testing for accurate results.
07
#07
Cushing syndrome from an ACTH-producing pheochromocytoma or paraganglioma: structured review of 94 cases.
ReviewInfluence1.0
8
Researchers conducted a structured review of 94 cases of ACTH-producing pheochromocytomas/paragangliomas. They found that these tumors co-secrete catecholamines and ACTH, leading to significant morbidity, with most patients achieving a cure after surgical intervention.
08
#08
Effect of CRF, ACTH and adrenal steroids on sodium intake and excretion of rabbits.
In VitroInfluence1.0
8
Researchers studied the effects of CRF, ACTH, and adrenal steroids on sodium intake and excretion in rabbits. They found that intracerebroventricular infusion of CRF increased sodium turnover, indicating a complex interaction with ACTH and adrenal hormones.
09
#09
Autoimmune Primary Adrenal Insufficiency in Children.
Case Report
3
This study investigated primary adrenal insufficiency in children, highlighting the need for ACTH and cortisol measurements for diagnosis. Researchers observed that symptoms can be non-specific, making prompt diagnosis essential.
10
#10
Rare clinical problem - isolated ACTH deficiency associated with chronic alcohol abuse.
Case Report
3
This case report examined isolated ACTH deficiency associated with chronic alcohol abuse. Researchers found low cortisol and ACTH levels in patients, with significant improvement following hydrocortisone treatment.
Publication Trend
Research publications about ACTH over time
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