The Journal of clinical endocrinology and metabolism · 2019
Renal Tubular Dysfunction Fully Accounts for Plasma Biochemical Abnormalities in Type 1A Pseudohypoparathyroidism.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Labbadia Raffaella, Bizzarri Carla, Mucciolo Mafalda, Di Zazzo Giacomo, Guzzo Isabella, Cappa Marco, Emma Francesco, Dello Strologo Luca
Аннотация
CONTEXT: Type 1A pseudohypoparathyroidism (PHP-1A) is characterized by target organ resistance to PTH. Patients can present with various dysmorphic features; however, renal failure has not been classically described.
CASE DESCRIPTION: A female patient came to our attention at the age of 7 years with characteristic signs of PTH resistance (i.e., hypocalcemia, hyperphosphatemia, and high serum PTH levels). She also presented with hypothyroidism, early-onset obesity, short metacarpal bones, and multiple subcutaneous ossifications, leading to a clinical diagnosis of pseudohypoparathyroidism. In addition to her genetic condition, she had bilateral renal hypodysplasia that was slowly progressing to end-stage kidney disease. She received a kidney transplant at the age of 16 years and, after transplantation, experienced rapidly normalized calcium, phosphate, and PTH levels, allowing f withdrawal of vitamin D supplementation.
CONCLUSIONS: To the best of our knowledge, ours is the first report of a patient with PHP-1A undergoing kidney transplantation. Normalization of biochemical parameters after the procedure demonstrated that renal tubular resistance to PTH is sufficient to explain the calcium/phosphate abnormalities observed in PHP-1A.
CASE DESCRIPTION: A female patient came to our attention at the age of 7 years with characteristic signs of PTH resistance (i.e., hypocalcemia, hyperphosphatemia, and high serum PTH levels). She also presented with hypothyroidism, early-onset obesity, short metacarpal bones, and multiple subcutaneous ossifications, leading to a clinical diagnosis of pseudohypoparathyroidism. In addition to her genetic condition, she had bilateral renal hypodysplasia that was slowly progressing to end-stage kidney disease. She received a kidney transplant at the age of 16 years and, after transplantation, experienced rapidly normalized calcium, phosphate, and PTH levels, allowing f withdrawal of vitamin D supplementation.
CONCLUSIONS: To the best of our knowledge, ours is the first report of a patient with PHP-1A undergoing kidney transplantation. Normalization of biochemical parameters after the procedure demonstrated that renal tubular resistance to PTH is sufficient to explain the calcium/phosphate abnormalities observed in PHP-1A.