🧪 Cortisone-Associated Diseases
While cortisone itself is less active than cortisol, problems can arise from:
- Impaired cortisone↔cortisol conversion
- Excessive or insufficient cortisone exposure (natural or synthetic)
- Enzyme defects in 11β-HSD1 or 11β-HSD2
🔺 1. Apparent Mineralocorticoid Excess (AME)
🧬 Cause:
- Deficiency of 11β-HSD2 enzyme → can’t convert cortisol to cortisone in the kidney
- Excess cortisol binds mineralocorticoid receptors, mimicking aldosterone
🩺 Symptoms:
- Hypertension (especially in children)
- Hypokalemia
- Low plasma renin and aldosterone
- Normal or elevated cortisol/cortisone ratio
🧪 Can be genetic or acquired (e.g., excessive licorice intake, which inhibits 11β-HSD2)
🔻 2. 11β-HSD1 Deficiency or Dysfunction
🧬 Cause:
- Reduced conversion of cortisone to cortisol in liver, fat, and brain
- Can affect local cortisol levels → impacts metabolic control, inflammation, and stress response
🧠Associated issues (theoretical or research-based):
- Impaired stress adaptation
- Altered glucose metabolism
- Reduced inflammatory resolution
Note: This is more experimental than fully clinical.
💉 3. Cortisone Therapy – Associated Side Effects
Used to treat inflammation (e.g., arthritis, asthma), but prolonged cortisone use can lead to:
➕ Cushingoid Effects (Iatrogenic Cushing’s Syndrome)
- Moon face, weight gain, muscle wasting
- Osteoporosis, diabetes, hypertension
- Adrenal suppression (↓ ACTH, atrophy of adrenal glands)
âž– Adrenal Insufficiency (After Withdrawal)
- Abrupt stopping of cortisone → low ACTH and adrenal atrophy
- Symptoms: fatigue, hypotension, nausea, weakness
🧬 4. Cortisone-Cortisol Imbalance in Adrenal Disorders
- In Addison’s disease or secondary adrenal insufficiency, cortisone (like cortisol) is low
- May require glucocorticoid replacement therapy (often with hydrocortisone or cortisone acetate)
📊 Summary Table
Condition | Cortisone Role | Key Features |
AME (Apparent Mineralocorticoid Excess) | ↓ Cortisone (in kidney) | HTN, hypokalemia |
Cortisone therapy (chronic) | ↑ Cortisone | Cushingoid features |
Cortisone withdrawal | ↓ Cortisone/cortisol | Adrenal insufficiency |
11β-HSD1 dysfunction | ↓ Cortisone → cortisol | Weak glucocorticoid activity |
Addison’s disease | ↓ Cortisone & cortisol | Fatigue, hypotension, hyperpigmentation |