16 results
diagnosis pathophysiology differential causes endocrinology pharmacology signs symptoms algorithm complications drugs hypocalcemia hypomagnesemia management medications msk nephrology osteoporosis radiology rankl
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 ... #Osteoclasts #Bone
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
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
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
Osteoblastic Metastases on Chest XRay Dr. Devpriyo Pal @drdevrad #Osteoblastic #Metastases #Chest #XRay #CXR #clinical #radiology #labeled
Osteoblastic Metastases ... Pal @drdevrad #Osteoblastic
Feedback Loop: Growth Hormone (GH) Growth Hormone: • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
IGFIR activates osteoblasts
Causes of Hypocalcemia - Differential Diagnosis Algorithm • Extravascular: Pancreatitis, surgery, acute phosphate intake and renal
renal failure, Osteoblastic
Pharmacologic Options for Hypercalcemia Associated with Cancer Rehydration with NS followed by loop diuretics • IV normal
acid - Inhibits osteoclast ... RANKL to decrease osteoclast ... nitrate - Inhibits osteoclast
Hypocalcemia Workup - Differential Diagnosis Algorithm • Low Magnesium, High Magnesium - Functional Hypoparathyroidism • High
Pancreatitis, Sepsis, Osteoblastic
Bisphosphonates for Osteoporosis Treatment or Prevention Bisphosphonates are common medications used in the treatment and prevention
Bisphosophonates inhibit osteoclasts
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