7 results
Hormonal Regulation of the Blood Calcium concentration

#Calcium #Regulation #Parathyroid #Calcitonin #Calcitriol #PTH #Endocrinology #Pathophysiology #Hormones
Calcium #Regulation #Parathyroid ... #Calcitonin #Calcitriol ... #PTH #Endocrinology
Effects of Parathyroid hormone (PTH) and Calcitonin on Calcium and Phosphate Metabolism

#Parathyroid #hormone #PTH #Calcitonin #phosphate
Effects of Parathyroid ... hormone (PTH) and ... and Phosphate Metabolism ... #Parathyroid ... #hormone #PTH #
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
High or Normal PTH ... adenoma, Parathyroid ... Hypercalcemia Low PTH ... diseases, Idiopathic calcitriol ... Workup #nephrology #PTH
Synthesis, metabolism and functions of vitamin D. PTH parathyroid hormone, FGF-23 fibroblast growth factor-23, RANKL receptor
Synthesis, metabolism ... PTH parathyroid ... ligand #VitaminD #Metabolism
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
Abnormalities of calcium metabolism ... Hypoparathyroidism • Parathyroid ... Decreased synthesis of calcitriol
Causes of Hypercalcemia
Parathyroid gland structure-related
 • Primary hyperparathyroidism
 • Parathyroid adenoma
 • Parathyroid hyperplasia
 • Parathyroid
Hypercalcemia Parathyroid ... adenoma • Parathyroid ... hyperplasia • Parathyroid ... hypercalcemia Vitamin D metabolic ... prostate (release of calcitriol
Light,
UVB, heat
Cholecalciferol vitamin D3
DBP
DBP
Vitamin D
Pool
Liver
7-Dehydro-cholesterol
DBP
→ 25-(OH)D
1 Hydroxyl-apatite
Bone
Fat, bile acids
Chylomicrons
Vitamin D from food
Skin
#Parathyroid
#PTH
secretion
Circulating
25-(OH)D
DBP
Kidney
• 25-(OH)D
1,25-(OH,) D
1,25-(OH)w D
† Ca?+-retention
Metabolite
#Bile
from food Skin #Parathyroid ... #PTH secretion ... +-retention Metabolite