The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Account created for The Calgary Guide to Understanding Disease - Linking pathophysiology to clinical presentation - http://calgaryguide.ucalgary.ca/
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Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Feedback Loop: Growth ... Hormone (GH) Growth ... #FeedbackLoop #endocrinology ... #pathophysiology ... #pituitary
Pituitary Mass Effects - Pathogenesis and Clinical Findings
 • Pituitary turnors are almost always a benign
following order; GH ... A good mnemonic ... #SideEffects #endocrinology ... #mnemonic #GLFTAP ... #pathophysiology
Menstrual Cycle Physiology: The Hypothalamic-Pituitary-Ovarian Axis
Estrogen, when released:
 • Negatively feeds back on the hypothalamus and
The Hypothalamic-Pituitary-Ovarian ... hypothalamus and anterior pituitary ... MenstrualCycle #pathophysiology ... HypothalamicPituitary #endocrinology ... #feedback
Menstrual Cycle Physiology: Ovarian Cycle – Ovulation Explained

Around Day 14, estrogen exerts sudden +++ positive feedback
sudden +++ positive feedback ... on the anterior pituitary ... negative to positive feedback ... #OvarianCycle #pathophysiology ... #Ovulation #endocrinology
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
Feedback Loop: Prolactin ... #FeedbackLoop #endocrinology ... #pathophysiology ... #pituitary