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The New Adrenal Stress Index The Adrenal Stress Index panel (ASI) was introduced in 1989 to evaluate stress, a leading cause of morbidity and mortality. Recently, new tests were added to evaluate glycemic control using multiple salivary insulin measurements, and evaluate adrenal capacity to produce cortisol using 17-Hydroxyprogesterone. Tests included in the panel are shown in Table 1. ![]() Test Explanation: 1 Cortisol Rhythm: Description: The panel utilizes four saliva
samples (1 , 2). Saliva cortisol reflects the Free (bioactive) Fraction of serum
cortisol. The test report shows the twenty-four hour diurnal cortisol rhythm
generated in response to real life stress.
![]() Therapeutic value: The test results facilitate the diagnosis of stress maladaptation and adrenal fatigue. With this data, you can narrow your choices to the most appropriate modalities of treatment. 2 DHEA(S): Description: The panel measures the average
DHEA(S)* level for the day using multiple samples.
Therapeutic value: The cortisol to DHEA relationship is presented in a visual graph that highlights the degree of stress maladaptation. This information helps determine the projected time for recovery, and the substances (hormones, supplements, botanicals) that promote this recovery. Cortisol to DHEA ratio regulates many functions as listed below. ![]() * Salivary DHEA(S) is found at about 0.1% of its plasma concentration. Serum fluctuations in DHEA(S) concentrations are accurately and rapidly reflected in salivary levels (3). DHEA(S) indicates Free Fractions of both DHEA & DHEA-Sulfate. 3 17-Hydroxyprogesterone (17-OHP1): Description: The panel measures
17-OHP1 level in order to evaluate efficiency
of conversion of adrenal precursors into cortisol. Certain adrenal fatigue
patients who are genetically predisposed to low production of cortisol will
not benefit from exogenous supplementation of pregnenolone or progesterone.
4 Insulin:
Therapeutic value: By identifying the sub-population of maladapted and adrenal fatigued individuals who show impaired 17-OHP1 conversion to cortisol, two things are avoided:
Description: The panel includes fasting and
postprandial insulin measurements. The insulin values are used to diagnose
insulin resistance, functional insulin deficit (Pre-Diabetes) and also correlate
elevated cortisol with insulin to help explain glycemic dysregulation problems.
(See Glycemic Dysregulation section)
Therapeutic value: The combined results of insulin and cortisol can help in designing an effective glycemic control treatment plan that may include life style modifications, nutritional support and botanical supplementation. 5 Secretory IgA (SIgA): Description: The panel
evaluates mucosal immunity by using SIgA as a stress
impact biomarker. SIgA values are sensitive to increased cortisol/DHEA ratio
and sympathetic tone (See Diagram 2).
Therapeutic value: By detecting depressed mucosal immune function in certain patients, a number of therapeutic modalities may be invoked, ranging from botanical supplementation to control of heart rhythm variability. 6 Gliadin Antibodies: Description: The panel
includes a gliadin antibody measurement that allows
detection of subclinical grain intolerance in affected individuals, even in
the absence of overt celiac disease.
Therapeutic value: This test allows objective identification of grain intolerant patients, who should restrict their gluten intake to reduce inflammation and adrenal stress.
Clinical Applications of the ASI Chronic
Pain/Fibromyalgia: An adequate adrenal response can maintain a higher
pain threshold (4). The ASI is used to evaluate the stress impact of
chronic pain and inflammation on adrenal adaptation. A proper diagnosis of
low cortisol or DHEA with circadian rhythm disruption is imperative. Subsequent
hormone replacement and rhythm correction will improve the individual's pain
tolerance (7, 8). Chronic Fatigue syndrome (CFS): A common HPA axis defect in CFS is impaired corticotrophin release (5). As a result low cortisol and eventual adrenal atrophy may be observed. Depleted adrenals with flat rhythms are often seen on the ASI panel (6). Simultaneous use of several therapies can help improve the debilitating CFS. Glycemic Dysregulation: Chronic hypoglycemia can impair normal adrenal function by repetitive over-stimulation of cortisol production. Recurring expo- sure to high cortisol will impair insulin activity, and invariably lead to insulin resistance and beta-cell exhaustion (Diabetes). The ASI panel investigates the Insulin-Cortisol relationship under real life conditions to allow targeted and meaningful interventions. This panel is useful in the following clinical situations: rapid weight gain and obesity, deranged blood lipids, sugar blues, early diabetes and associated emotional disturbances. Allergies/Autoimmune Disorders: Fifty years ago, Dr W. Jefferies (Author of "Safe Uses of Cortisol") discovered that patients with environmentally triggered allergies and autoimmune diseases dramatically benefited when given cortisol for other purposes (9). More recently, German researchers reported that disruption of the adrenal axis and cytokine relationships lead to predisposition and aggravation of autoimmune diseases (10). The findings of the ASI help identify patients with autoimmune diseases and adrenal problems who can benefit from cortisol supplements. Depression/ADD: Several recent publications (11, 12) report a hyperactive HPA axis in depressed patients. Elevated midnight salivary cortisol is now considered one of the best tests in diagnosing endogenous depression. Other anomalies in cortisol rhythm usually accompany the midnight elevation. On the other hand cortisol elevations and rhythm disruptions throughout the day are typical of attention deficit disorders (ADD). The anomalous cortisol findings in depression and ADD can be successfully diagnosed with the ASI. Subsequent interventions to rectify the time specific cortisol elevations (during day or night) are usually effective when applied under proper supervision (13, 14). |
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