pseudohypoparathyroidism/adenosine

It has been proposed previously that the metabolic defect in pseudohypoparathyroidism which accounts for parathyroid hormone unresponsiveness is an absence or abnormal form of the adenyl cyclase system in kidney and presumably in bone. To determine whether there is an associated defect in the

The response to exogenous parathyroid hormone (PTH) with urinary excretion of phosphate and cyclic adenosine monophosphate (cAMP) was tested by the use of synthetic human parathyroid hormone (1-34) [hPTH-(1-34)] on 59 patients with hypocalcemia and normal or high serum inorganic phosphorus and

In 6 of 8 adults with severe hypocalcemia and osteomalacia due to vitamin D depletion, basal excretion of nephrogenous cAMP (NcAMP) was increased, but the mean renal phosphate threshold (TmP/GFR) was normal, indicating that the steady state phosphaturic response to cAMP generated by endogenous PTH

The effect of dibutyryl cAMP on plasma concentrations of 1,25-dihydroxyvitamin D [1,25-(OH)2D] was studied in two patients with pseudohypoparathyroidism (PHP) type I, five normal adults, and three normal children as controls. In normal adults, plasma 1,25-(OH)2D tended to increase 3 h after the

Plasma cAMP, serum glucose, and cardiovascular responses to isoproterenol infusion were examined in seven normal subjects and seven patients with pseudohypoparathyroidism (PHP), type I (three with deficiency of the hormone receptor-cyclase coupling protein (N-protein) and four who were N-protein

Forty patients with hypocalcemia and/or Albright's hereditary osteodystrophy were studied. Based on the estimation of serum calcium and parathyroid hormone (PTH) levels as well as the urinary cAMP response to infusions with parathyroid extract, it was possible to classify all of the patients studied

OBJECTIVE The GNAS gene encodes the alpha-subunit of stimulatory G proteins, which play a crucial role in intracellular signal transduction of peptide and neurotransmitter receptors. In addition to transcript variants that differ in their first exon due to different promoters, there are two long

We sought to determine whether cultured human dermal fibroblasts respond to parathyroid hormone (PTH) with accumulation of cyclic 3',5'-adenosine monophosphate (cAMP) reproducibly enough for such cells to be useful in characterizing states of altered end-organ response to PTH. Thus, we cultured

A girl with type 1a pseudohypoparathyroidism (PHP) presented several hormonal abnormalities. Although she had eluded neonatal thyroid screening, she was diagnosed as having hypothyroidism at the age of 5 months. Thereafter, a diagnosis of PHP was made on the basis of skeletal features of Albright

A family consisting of a mother, a father with probable pseudopseudohypoparathyroidism (PPHP), two normal daughters, and four daughters with pseudohypoparathyroidism (PHP) have been observed for more than 15 years at North Carolina Memorial Hospital (NCMH). The studies performed on family members

A 31-year-old man and a 12-year-old girl were diagnosed as pseudohypoparathyroidism (PHP) Type I because of a failure to respond to the administration of parathyroid hormone (PTH) with increased urinary excretion of phosphate and cyclic adenosine-3', 5'-monophosphate (cAMP). A 22-year-old woman was

The diagnosis of acrodysostosis has been differentiated from that of pseudohypoparathyroidism or pseudo-pseudohypoparathyroidism by the absence of endocrine abnormalities, more generalized osseous abnormalities, and a characteristic facial appearance. Two cases are presented which fulfill all of the

The effect of synthetic 1-34 fragment of human parathyroid hormone (hPTH(1-34] on plasma adenosine 3',5'-monophosphate (cAMP) in human subjects and the diagnostic criteria for the plasma cAMP response in an Ellsworth-Howard test were studied. 20 or 30 micrograms hPTH(1-34) and 200 USP Parathormone