805 results
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
secretion -> Decr FSH ... females, Decr testosterone ... endocrinology #pathophysiology
Glucocorticoid-Induced Osteoporosis: Pathogenesis and Clinical Findings

 • Negative feedback on hypothalamus/pituitary, Decreasing ACTH -> Decr Sex
Hormones (LH, FSH ... , Testosterone, ... #Osteoporosis #pathophysiology
Bilateral Winged Scapula on Physical Exam - Seen in Facioscapulohumeral Muscular Dystrophy (FSH, FSHD)

#Bilateral #Winged #Scapula
Muscular Dystrophy (FSH ... , FSHD) #Bilateral ... Muscular #Dystrophy #FSH ... #FSHD #clinical
Hypogonadism Differential Diagnosis Algorithm
 • Low testosterone, Normal or low LH, Normal or low FSH -
Algorithm • Low testosterone ... Normal or low FSH ... Normal LH, Normal FSH ... Normal LH, Elevated FSH ... Elevated LH, Elevated FSH
Benign Prostatic Hyperplasia: Pathogenesis and Medications
Aging
 -> Increased Testosterone -> Testosterone metabolized into DHT by type
-> Increased Testosterone ... -> Testosterone ... Conversion of testosterone ... pituitary -> Decr Testosterone ... Hyperplasia #Prostate #Pathophysiology
Exogenous Testosterone Side Effects
 • Mood disorder, Depression, Aggression
 • ↑ Erythropoiesis
 • Hypogonadism +/-BPH, prostate
Exogenous Testosterone ... #Exogenous #Testosterone
Menstrual Cycle Physiology: Ovarian Cycle – Brief Overview
LH and FSH are required for follicular development and
Overview LH and FSH ... follicle - FSH ... produced -> Inhibit FSH ... #OvarianCycle #pathophysiology
Menstrual Cycle Physiology: Ovarian Cycle – Follicular Phase Explained
Early Follicular Phase (Days 0-5)
 • Granulosa cells
hormone that 1) Incr FSH ... pituitary, 2) Incr FSH ... Resulting high FSH ... responsive to FSH ... #OvarianCycle #pathophysiology
Causes of Female and Male Infertility - Differential Diagnosis Algorithm
Causes of Female Infertility:
 • Uterus -
• Increased FSH ... • Decreased FSH ... • Decreased FSH ... hypogonadism) Low FSH ... problem) High FSH
Anemia - Underproduction Diagnostic Algorithm
 - Iron deficiency anemia
 - Anemia of chronic inflammation
 - Anemia
TSH, LFTs, +/- testosterone