The Calgary Guide to Understanding Disease @TheCalgaryGuide
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pathophysiology menstrualcycle pituitary feedbackloop growthhormone uterinecycle comparison diagnosis excess follicularphase glftap hpoa hypothalamicpituitary lutealphase macroadenoma masseffects menstruation mnemonic overproduction ovulation
Feedback Loop: Growth Hormone (GH) Growth Hormone: • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Feedback Loop: Growth ... Hormone (GH) Growth ... /Symptoms: • GH ... abn lipid • GH ... #FeedbackLoop #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Ovulation Explained Around Day 14, estrogen exerts sudden +++ positive feedback
sudden +++ positive feedback ... negative to positive feedback ... MenstrualCycle #OvarianCycle ... pathophysiology #Ovulation #endocrinology
Growth Hormone Excess - Pathogenesis and clinical findings • Acromegaly and gigantism share the same pathophysiology
time of onset of GH ... GH excess prior ... GH excess after ... GrowthHormone #GH ... signs #symptoms #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Brief Overview LH and FSH are required for follicular development and
MenstrualCycle #OvarianCycle ... #menstruation #endocrinology
Feedback Loop: Prolactin (PRL) • PRL levels exhibit diurnal, menstrual, and age-related variation • TRH has
Feedback Loop: Prolactin ... #FeedbackLoop #endocrinology
Menstrual Cycle Physiology: The Hypothalamic-Pituitary-Ovarian Axis Estrogen, when released: • Negatively feeds back on the hypothalamus and
HypothalamicPituitary #endocrinology ... #feedback
Menstrual Cycle Physiology: Ovarian Cycle – Luteal Phase Explained • The LH surge can be thought
MenstrualCycle #OvarianCycle ... #LutealPhase #endocrinology
Pituitary Mass Effects - Pathogenesis and Clinical Findings • Pituitary turnors are almost always a benign
following order; GH ... #SideEffects #endocrinology
Menstrual Cycle Physiology: Correlating the Ovarian and Uterine Cycles Note: Some charts show different relative levels of
MenstrualCycle #OvarianCycle ... pathophysiology #comparison #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Follicular Phase Explained Early Follicular Phase (Days 0-5) • Granulosa cells
MenstrualCycle #OvarianCycle ... FollicularPhase #endocrinology
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