775 results
Regulation of GFR
Physiologically, GFR is auto-regulated very precisely with changes in the mean arterial pressure (MAP)
neuro-hormonal feedback ... Tubuloglomerular feedback ... Neuro-hormonal feedback ... #Pathophysiology
Macula Densa Pathway - Physiological Pathways, Feedback Loops, and Pharmacological Regulation of the Renin-Angiotensin-System

#MaculaDensa #Pathophysiology #Nephrology
Physiological Pathways, Feedback ... #MaculaDensa #Pathophysiology
Menstrual Cycle Physiology: Ovarian Cycle – Ovulation Explained

Around Day 14, estrogen exerts sudden +++ positive feedback
sudden +++ positive feedback ... negative to positive feedback ... #OvarianCycle #pathophysiology
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
Feedback Loop: Prolactin ... endocrinology #pathophysiology
Glucocorticoid-Induced Osteoporosis: Pathogenesis and Clinical Findings

 • Negative feedback on hypothalamus/pituitary, Decreasing ACTH -> Decr Sex
• Negative feedback ... #Osteoporosis #pathophysiology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Feedback Loop: Growth ... endocrinology #pathophysiology
Calcium homeostasis is a process controlled by chiefly by hormones vitamin D and PTH. 
Vitamin D
classical negative feedback ... #Pathophysiology
Menstrual Cycle Physiology: The Hypothalamic-Pituitary-Ovarian Axis
Estrogen, when released:
 • Negatively feeds back on the hypothalamus and
MenstrualCycle #pathophysiology ... endocrinology #feedback
Pathophysiology - Renal compression as a mechanism of obesity hypertension. 
Compression of the thin loop of
Pathophysiology ... tubuloglomerular feedback ... hypertension #obesity #pathophysiology
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
tubulo-glomerular feedback ... Diagnosis #Algorithm #Pathophysiology