Skip to main content
MedVellum
QuestionsVideosPricing

MedVellum

Fellowship exam preparation across every specialty: source-verified topics, questions in every format, and videos.

Product

  • Specialties
  • Questions
  • Videos
  • Exam tools
  • Pricing

Verification & policy

  • Verified register
  • Editorial policy
  • Privacy
  • Terms

Account

  • Sign in
  • Create account
  • Dashboard
  • Account & billing

© 2026 MedVellum. For education only — not a substitute for clinical judgement.

llms.txtPsychiatry LLM catalogSitemap

Psych TopicsFoundations — psychoneuroendocrinology and psychoimmunology

Psych · Foundations — psychoneuroendocrinology and psychoimmunology

Psychoneuroendocrinology and psychoimmunology

Also known as Psychoneuroimmunology · HPA axis psychiatry · Stress biology psychiatry · Cytokine hypothesis of depression · Sickness behaviour · Allostatic load mental health · Glucocorticoid receptor depression

Exam-exhaustive fellowship foundation on psychoneuroendocrinology and psychoimmunology: HPA/HPG/HPT axes, allostatic load, glucocorticoid receptor resistance, tuberoinfundibular prolactin pharmacology, cytokine–brain signalling, sickness behaviour, inflammatory depression and psychosis risk evidence, investigation limits, and clinical application without biomarker overclaim. FRANZCP-primary, globally tagged.

medium16 referencesUpdated 26 July 202612 min readVerification in progress

Practise this topic

  • 10 MCQs

Your progress

Saved on this device.

Practise this topic10 MCQs with explanations

Target exams

FRANZCPMRCPsychABPNMD-DNBNEET-SS

Red flags

  • Adrenal crisis, thyroid storm, or severe steroid neurotoxicity — medical emergency pathways first; do not reframe as functional stress alone
  • New psychosis with fever, seizures, dysautonomia, or rapid cognitive decline — consider autoimmune encephalitis and organic work-up
  • Cushingoid habitus, progressive cognitive change, or unexplained hypokalaemia with treatment-resistant depression — screen for hypercortisolism with endocrinology
  • Do not use dexamethasone suppression test, single cortisol, CRP, or IL-6 as diagnostic tests for MDD or primary psychosis
  • Symptomatic antipsychotic hyperprolactinaemia (amenorrhoea, galactorrhoea, hypogonadism) — investigate and revise regimen; do not ignore until bone or fertility harm
  • Neuroscience and biomarkers never replace structured suicide and violence risk assessment
On this page
Study tools

Your progress

Saved on this device.

Practise this topic10 MCQs with explanations

Target exams

FRANZCPMRCPsychABPNMD-DNBNEET-SS

Red flags

  • Adrenal crisis, thyroid storm, or severe steroid neurotoxicity — medical emergency pathways first; do not reframe as functional stress alone
  • New psychosis with fever, seizures, dysautonomia, or rapid cognitive decline — consider autoimmune encephalitis and organic work-up
  • Cushingoid habitus, progressive cognitive change, or unexplained hypokalaemia with treatment-resistant depression — screen for hypercortisolism with endocrinology
  • Do not use dexamethasone suppression test, single cortisol, CRP, or IL-6 as diagnostic tests for MDD or primary psychosis
  • Symptomatic antipsychotic hyperprolactinaemia (amenorrhoea, galactorrhoea, hypogonadism) — investigate and revise regimen; do not ignore until bone or fertility harm
  • Neuroscience and biomarkers never replace structured suicide and violence risk assessment
The one-line fellowship answer

Psychoneuroendocrinology and psychoimmunology describe bidirectional traffic among brain, endocrine axes (especially the HPA) and the immune system. Master CRH–ACTH–cortisol, GR and MR feedback, allostatic load, sickness behaviour, cytokine-to-brain routes and prolactin pharmacology — then carry the hard clinical rule everywhere: markers refine formulation and physical-health care, they do not diagnose DSM or ICD syndromes and they never replace risk assessment.[1][2][4][6]

Meet the patient — and the cortisol story she has read

A 38-year-old woman with treatment-resistant depression hands you a printout: her CRP is mildly raised and she has read that "depression is inflammation". She asks whether she should stop her antidepressant and take an anti-inflammatory instead.[5][6]

The biology she has half-grasped is real. The conclusion she has drawn is not. The fellowship task is to honour the mechanism — HPA drive, glucocorticoid receptor resistance, cytokine-to-brain signalling — without collapsing a person into a single number, and without ever letting a cortisol or a CRP triage her suicide risk.[2][6]

Etymology for viva gold: allostasis, from Greek allos, "other", plus stasis, "standing" — achieving stability through change, not by holding a fixed set-point. It is the word that upgrades "fight or flight" into a framework examiners respect.[1]

Psychiatry Fellowship Pro

Continue reading

You have read the opening of this topic. The complete unit — every section and its primary-source references — is part of the Psychiatry Fellowship fellowship library.

Sign in to continueSee pricing
References16ShowHide
  1. [1]McEwen BS Protective and damaging effects of stress mediators N Engl J Med, 1998.PMID 9428819
  2. [2]Pariante CM, Lightman SL The HPA axis in major depression: classical theories and new developments Trends Neurosci, 2008.PMID 18675469
  3. [3]Holsboer F The corticosteroid receptor hypothesis of depression Neuropsychopharmacology, 2000.PMID 11027914
  4. [4]Dantzer R, O'Connor JC, Freund GG, Johnson RW, et al. From inflammation to sickness and depression: when the immune system subjugates the brain Nat Rev Neurosci, 2008.PMID 18073775
  5. [5]Raison CL, Capuron L, Miller AH Cytokines sing the blues: inflammation and the pathogenesis of depression Trends Immunol, 2006.PMID 16316783
  6. [6]Miller AH, Raison CL The role of inflammation in depression: from evolutionary imperative to modern treatment target Nat Rev Immunol, 2016.PMID 26711676
  7. [7]Capuron L, Miller AH Immune system to brain signaling: neuropsychopharmacological implications Pharmacol Ther, 2011.PMID 21334376
  8. [8]Khandaker GM, Pearson RM, Zammit S, Lewis G, et al. Association of serum interleukin 6 and C-reactive protein in childhood with depression and psychosis in young adult life: a population-based longitudinal study JAMA Psychiatry, 2014.PMID 25133871
  9. [9]Irwin MR, Cole SW Reciprocal regulation of the neural and innate immune systems Nat Rev Immunol, 2011.PMID 21818124
  10. [10]Felger JC, Lotrich FE Inflammatory cytokines in depression: neurobiological mechanisms and therapeutic implications Neuroscience, 2013.PMID 23644052
  11. [11]Gold PW, Chrousos GP Organization of the stress system and its dysregulation in melancholic and atypical depression: high vs low CRH/NE states Mol Psychiatry, 2002.PMID 11920153
  12. [12]Heim C, Nemeroff CB The role of childhood trauma in the neurobiology of mood and anxiety disorders: preclinical and clinical studies Biol Psychiatry, 2001.PMID 11430844
  13. [13]Sapolsky RM, Romero LM, Munck AU How do glucocorticoids influence stress responses? Integrating permissive, suppressive, stimulatory, and preparative actions Endocr Rev, 2000.PMID 10696570
  14. [14]Carroll BJ, Feinberg M, Greden JF, Tarika J, et al. A specific laboratory test for the diagnosis of melancholia. Standardization, validation, and clinical utility Arch Gen Psychiatry, 1981.PMID 7458567
  15. [15]Haddad PM, Wieck A Antipsychotic-induced hyperprolactinaemia: mechanisms, clinical features and management Drugs, 2004.PMID 15456328
  16. [16]Benros ME, Nielsen PR, Nordentoft M, Eaton WW, et al. Autoimmune diseases and severe infections as risk factors for schizophrenia: a 30-year population-based register study Am J Psychiatry, 2011.PMID 22193673

Test yourself

Practise what you just read

  • 10 MCQs
Psychiatry Fellowship Pro

$29/ monthor $279 / year

The complete Psychiatry Fellowship library, every exam format, one subscription.

  • Complete library for one chosen specialty
  • Timed MCQ mock exams and spaced review
  • Clinical cases & cross-table vivas
See pricingSign in
PreviousPsychological and neuropsychological testingFoundations — psychological and neuropsychological testingNextPsychopharmacology in pregnancy and lactationPsychopharmacology — pregnancy and lactation