776 results
Bone resorption and the relationship between osteoblasts and osteoclasts.  
RANK is expressed on the osteoclasts,
relationship between osteoblasts ... and osteoclasts ... expressed on the osteoclasts ... RANK stimulates osteoclast ... #Pathophysiology
Glucocorticoid-Induced Osteoporosis: Pathogenesis and Clinical Findings

 • Negative feedback on hypothalamus/pituitary, Decreasing ACTH -> Decr Sex
production of osteoblasts ... and GF's -> Osteoblasts ... expression of osteoclasts ... -> Incr Osteoclasts ... #Osteoporosis #pathophysiology
Fracture Healing (and disruptors of this process)
Inflammatory Stage (0-7d)
 • Fracture disrupts local blood vessels ->
cartilaginous matrix by osteoblasts ... mos - yrs) • Osteoclast-osteoblast ... gentamycin - Toxic to osteoblasts ... #msk #Staging #pathophysiology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
IGFIR activates osteoblasts ... endocrinology #pathophysiology
Charcot Joint - Neuropathic Arthropathy: Pathogenesis and Clinical findings
 • Impaired joint protection -> abnormal joint
cytokines act on osteoclasts ... #Arthropathy #pathophysiology
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
Complications Abnormal Osteoclasts ... PagetsDisease #pathophysiology
Malignant Bone Tumors: Pathogenesis of X-ray appearance

 • Metastatic bone tumors (aka. cancerous cells from systemic
cells activate osteoblasts ... more than osteoclasts ... activate largely osteoclasts
Diabetes Pathophysiology and Medication Targets

The ominous octet is one concept that summarizes the different pathophysiologic pathways
Diabetes Pathophysiology ... the different pathophysiologic ... #Diabetes #Pathophysiology
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Pancreatitis, Sepsis, Osteoblastic
Causes of Hypocalcemia - Differential Diagnosis Algorithm
 • Extravascular: Pancreatitis, surgery, acute phosphate intake and renal
renal failure, Osteoblastic