Mastering Mnemonics: Signaling Pathways For USMLE Step 1

  • Reviewed by: Amy Rontal, MD
  • Dr. Christopher Carrubba and Dr. Taylor Purvis contributed to this article.

    I can’t even begin to tell you how many times I missed a question regarding the signaling pathways of endocrine hormones when I was using UWorld to prepare for Step 1. At some point, I finally had the realization that this was something that I would just have to memorize.

    Fortunately, I came across the following helpful mnemonics before my exam. Looking back, I think I had at least three questions on this topic. Ever since then, I have made it a point to utilize these with the students I tutor. And now, I hope they can help you as well. Enjoy!

    Mnemonic: FLAT ChAMPS B.G.
    Use: Hormones that utilize cAMP

    Of all the mnemonics that I am about to mention, I like this one the most because it actually has cyclic AMP (cAMP) as part of its name, which definitely helps me remember it better.

    F – FSH

    L – LH (and Lipotropin)

    A – ACTH

    T – TSH

    C – CRH and calcitonin

    h – hCG and H2 (histamine)

    A – ADH (v2 receptor), Alpha 2 adrenergic, Adenosine 2

    M – MSH (melanocyte stimulating hormone), M2, M4

    P – PTH, Prolactin Inhibiting Factor (Dopamine)

    S – Somatostatin, Serotonin, Secretin

    B – Beta adrenergics (B1, B2)

    G – Glucagon, GHRH, GABA-B

    Mnemonic: GOAT HAG
    Use: Hormones that utilize IP3

    I’ve never figured out how GOAT HAG has anything to do with IP3, but it works so I don’t question it.

    G – GnRH, GHRH (yes: it does IP3 and cAMP)

    O – oxytocin

    A – ADH (v1 receptor)

    T – TRH

    H – H1

    A – angiotensin II

    G – gastrin

    Mnemonic: VETTT CAP
    Use: Hormones utilizing intracellular receptors

    Again, the mnemonic doesn’t really fit the topic, but I have noticed that hormones with intracellular receptors are the most frequently tested of the endocrine hormones that we are discussing here. So, I would definitely make a big effort to memorize this one.

    V – Vitamin D

    E – Estrogen

    T – Testosterone

    T – T3

    T – T4

    C – Cortisol

    A – Aldosterone

    P – Progesterone

    Mnemonic: PIGGLET
    Use: Hormones with receptor-associated tyrosine kinases

    What you’ll notice is that this mnemonic includes all of the hormones acting through the MAP and JAK/STAT pathway.

    P – Prolactin

    I – Immunomodulators (cytokines, IL-2, IFN)

    G – Growth Hormone

    G – Granulocyte colony stimulating factor

    L – Lymphokines (IL6, IL2, IFN, TNF, GF), Leptin

    E – EPO

    T – Thrombopoietin

    Mnemonic: all the “N”s

    Use: c-GMP Mechanism

    You can remember hormones that use the c-GMP mechanism as those that begin with the letter N.

    1. Nitric oxide (NO)
    2. Natriuretic peptides (BNP, ANP)
    3. Night sight (retinal rod photoreceptors in the dark)

    Mnemonic: PET CAT V

    Use: Hormone response elements on DNA

    When you think of the lipophilic hormones that bind to DNA, think of a pet cat named V.

    P – Progesterone

    E – Estrogen

    T – Testosterone

    C – Cortisol

    A – Aldosterone

    T – Thyroid hormone

    V – Vitamin D