Biomaterial Database

The inhibitory adenylate cyclase coupling protein in pseudohypoparathyroidism. 1985

R W Downs, and R D Sekura, and M A Levine, and A M Spiegel

Deficient activity of the adenylate cyclase stimulatory coupling protein (Ns) has been demonstrated in many patients with pseudohypoparathyroidism type I (PHP) who have Albright's hereditary osteodystrophy and multiple hormone resistance. Since an abnormality in the activity of the related adenylate cyclase inhibitory coupling protein (Ni) could influence hormone responsiveness, we measured pertussis toxin-catalyzed [32P]ADP ribosylation of the 40,000-dalton alpha-subunit of Ni (Ni alpha) in erythrocyte membranes from patients with PHP and normal subjects. There were no significant differences in the amounts of Ni alpha in membranes from normal subjects, patients with PHP who have low Ns associated with Albright's hereditary osteodystrophy and multiple hormone resistance, and patients with PHP who have normal Ns. Abnormal Ni is not likely to cause hormone resistance in patients with PHP who have normal Ns or to influence hormone responsiveness in patients with PHP who have low Ns.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009419	Nerve Tissue Proteins		Proteins, Nerve Tissue,Tissue Proteins, Nerve
D010281	Parathyroid Hormone	A polypeptide hormone (84 amino acid residues) secreted by the PARATHYROID GLANDS which performs the essential role of maintaining intracellular CALCIUM levels in the body. Parathyroid hormone increases intracellular calcium by promoting the release of CALCIUM from BONE, increases the intestinal absorption of calcium, increases the renal tubular reabsorption of calcium, and increases the renal excretion of phosphates.	Natpara,PTH (1-84),PTH(1-34),Parathormone,Parathyrin,Parathyroid Hormone (1-34),Parathyroid Hormone (1-84),Parathyroid Hormone Peptide (1-34),Hormone, Parathyroid
D011547	Pseudohypoparathyroidism	A hereditary syndrome clinically similar to HYPOPARATHYROIDISM. It is characterized by HYPOCALCEMIA; HYPERPHOSPHATEMIA; and associated skeletal development impairment and caused by failure of response to PARATHYROID HORMONE rather than deficiencies. A severe form with resistance to multiple hormones is referred to as Type 1a and is associated with maternal mutant allele of the ALPHA CHAIN OF STIMULATORY G PROTEIN.	Albright Hereditary Osteodystrophy,PHPIa,Albright Hereditary Osteodystrophy with Multiple Hormone Resistance,PHD Ib,PHD1b,PHP Ia,Pseudohypoparathyroidism Type 1B,Pseudohypoparathyroidism, Type Ia,Pseudohypoparathyroidism, Type Ib,Hereditary Osteodystrophy, Albright,Osteodystrophy, Albright Hereditary,Pseudohypoparathyroidism Type 1Bs,Pseudohypoparathyroidisms,Pseudohypoparathyroidisms, Type Ia,Pseudohypoparathyroidisms, Type Ib,Type Ia Pseudohypoparathyroidism,Type Ia Pseudohypoparathyroidisms,Type Ib Pseudohypoparathyroidism,Type Ib Pseudohypoparathyroidisms
D003720	Densitometry	The measurement of the density of a material by measuring the amount of light or radiation passing through (or absorbed by) the material.	Densitometries
D004351	Drug Resistance	Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration.	Resistance, Drug
D004910	Erythrocyte Membrane	The semi-permeable outer structure of a red blood cell. It is known as a red cell 'ghost' after HEMOLYSIS.	Erythrocyte Ghost,Red Cell Cytoskeleton,Red Cell Ghost,Erythrocyte Cytoskeleton,Cytoskeleton, Erythrocyte,Cytoskeleton, Red Cell,Erythrocyte Cytoskeletons,Erythrocyte Ghosts,Erythrocyte Membranes,Ghost, Erythrocyte,Ghost, Red Cell,Membrane, Erythrocyte,Red Cell Cytoskeletons,Red Cell Ghosts
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000242	Cyclic AMP	An adenine nucleotide containing one phosphate group which is esterified to both the 3'- and 5'-positions of the sugar moiety. It is a second messenger and a key intracellular regulator, functioning as a mediator of activity for a number of hormones, including epinephrine, glucagon, and ACTH.	Adenosine Cyclic 3',5'-Monophosphate,Adenosine Cyclic 3,5 Monophosphate,Adenosine Cyclic Monophosphate,Adenosine Cyclic-3',5'-Monophosphate,Cyclic AMP, (R)-Isomer,Cyclic AMP, Disodium Salt,Cyclic AMP, Monoammonium Salt,Cyclic AMP, Monopotassium Salt,Cyclic AMP, Monosodium Salt,Cyclic AMP, Sodium Salt,3',5'-Monophosphate, Adenosine Cyclic,AMP, Cyclic,Adenosine Cyclic 3',5' Monophosphate,Cyclic 3',5'-Monophosphate, Adenosine,Cyclic Monophosphate, Adenosine,Cyclic-3',5'-Monophosphate, Adenosine,Monophosphate, Adenosine Cyclic