Physiological basis for the etiology, diagnosis, and treatment of adrenal disorders: Cushing's syndrome, adrenal insufficiency, and congenital adrenal hyperplasia.
Level 5 - mechanism / opinion, no new human data
Narrative review of endocrine physiology and pathophysiology with no original human empirical data or systematic search methodology.
PubMed 24715566 · doi:10.1002/cphy.c130035
What was done
This is a narrative educational review describing the physiology and pathophysiology of the hypothalamic-pituitary-adrenal (HPA) axis across major adrenal disorders, including Cushing's syndrome, adrenal insufficiency, and congenital adrenal hyperplasia.
What was found
The abstract reports no numerical data or empirical outcome metrics. It outlines qualitative pathophysiological pathways: Cushing's syndrome arises from endogenous hypercortisolemia (ACTH-dependent corticotroph or ectopic tumors, or ACTH-independent autonomous adrenal overproduction) or exogenous therapy; adrenal insufficiency occurs via primary adrenal destruction, hypopituitarism, or HPA suppression following rapid glucocorticoid withdrawal; and congenital adrenal hyperplasia results from steroidogenic enzyme mutations driving precursor accumulation, such as excess androgens that can cause in utero female masculinization.
Why it matters
Understanding the regulatory dynamics of the HPA axis provides the physiological framework necessary for diagnosing and differentiating hypercortisolemic, hypocortisolemic, and steroidogenic disorders.
Limits
As a broad narrative review, the paper contains no original empirical data, sample size, or systematic methodology for study selection. Quantitative diagnostic accuracy measures, comparative treatment outcomes, and therapeutic protocols are not reported in the abstract.
Cited by
- supports In congenital adrenal hyperplasia (CAH), impaired synthesis of adrenal steroids causes the pituitary to overstimulate the adrenal glands, leading to hypertrophy and excess production of testosterone and other androgens.