The Calgary Guide to Understanding Disease @TheCalgaryGuide
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Erectile Dysfunction: Pathogenesis

Erectile Dysfunction - Persistent or recurrent inability to achieve an erection sufficient to achieve
Erectile Dysfunction ... Pathogenesis Erectile ... to achieve an erection ... Psychogenic Erectile ... and rigidity Endocrinologic
Diabetic Ketoacidosis (DKA) - Pathogenesis and Clinical Findings
 • Note: in DKA, body K+ is lost
confusion coma #DiabeticKetoacidosis ... pathophysiology #endocrinology
Priapism: Pathogenesis

 - Post-cavernosal venous occlusion -> Post-cavernosal venous drainage is mechanically obstructed e.g. sickle cell
detumescence (erection-ending ... Priapism Prolonged erection
Graves’ Disease: Pathogenesis and Clinical Findings
B & T lymphocyte mediated autoimmunity attack TSH receptor -> Continuous
pathophysiology #endocin #endocrinology
Primary Hyperthyroidism - Pathogenesis and Clinical Findings

Note: Although rare, gestational diseases can lead to thyrotoxicosis due
Hyperthyroidism #endocrinology
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
#FeedbackLoop #endocrinology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
#FeedbackLoop #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Brief Overview
LH and FSH are required for follicular development and
#menstruation #endocrinology
Growth Hormone Excess - Pathogenesis and clinical findings
 • Acromegaly and gigantism share the same pathophysiology
signs #symptoms #endocrinology
Menstrual Cycle Physiology: The Hypothalamic-Pituitary-Ovarian Axis
Estrogen, when released:
 • Negatively feeds back on the hypothalamus and
HypothalamicPituitary #endocrinology