PMID- 21985978 OWN - NLM STAT- MEDLINE DCOM- 20120319 LR - 20111011 IS - 1720-8386 (Electronic) IS - 0391-4097 (Linking) VI - 34 IP - 7 Suppl DP - 2011 Jul TI - Molecular pathogenesis of primary hyperparathyroidism. PG - 35-9 AB - Primary hyperparathyroidism (PHPT) is a common endocrinopathy, mostly caused by a monoclonal parathyroid adenoma. The hereditary syndromes include multiple endocrine neoplasia types 1 (MEN 1) and 2A (MEN 2A), hereditary hyperparathyroidism-jaw tumor (HPTJT), familial isolated hyperparathyroidism (FIHP), familial hypocalciuric hypercalcemia (FHH) and neonatal severe hyperparathyroidism (NSHPT). Mutations of MEN1 and CDKN1B genes are responsible for MEN 1 in 70-80% and about 2% of cases, respectively. MEN1 and CDKN1B genes have also a role in the pathogenesis of sporadic parathyroid adenomas. HRPT2/CDC73 gene mutations are responsible for HPT-JT and sporadic parathyroid carcinoma. MEN1 and HRPT2/CDC73 genes mutations have also been found in a subset of FIHP families. FHH and NSHPT represent the mildest and severest variants of PHPT, caused by heterozygous and homozygous mutations in the calcium sensing receptor (CASR) gene, respectively. FAU - Cetani, F AU - Cetani F AD - Department of Endocrinology and Metabolism, University of Pisa, Pisa, Italy. cetani@endoc.med.unipi.it FAU - Pardi, E AU - Pardi E FAU - Borsari, S AU - Borsari S FAU - Marcocci, C AU - Marcocci C LA - eng PT - Journal Article PT - Review PL - Italy TA - J Endocrinol Invest JT - Journal of endocrinological investigation JID - 7806594 RN - 0 (CASR protein, human) RN - 0 (CDKN1B protein, human) RN - 0 (MEN1 protein, human) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Receptors, Calcium-Sensing) RN - 147604-94-2 (Cyclin-Dependent Kinase Inhibitor p27) SB - IM MH - Animals MH - Cyclin-Dependent Kinase Inhibitor p27/genetics MH - Humans MH - Hyperparathyroidism/genetics MH - Hyperparathyroidism, Primary/*genetics MH - Multiple Endocrine Neoplasia Type 1/genetics MH - Multiple Endocrine Neoplasia Type 2a/genetics MH - Parathyroid Neoplasms/genetics MH - Proto-Oncogene Proteins/genetics MH - Receptors, Calcium-Sensing/genetics EDAT- 2012/01/04 06:00 MHDA- 2012/03/20 06:00 CRDT- 2011/10/12 06:00 PHST- 2011/10/12 06:00 [entrez] PHST- 2012/01/04 06:00 [pubmed] PHST- 2012/03/20 06:00 [medline] AID - 8004 [pii] PST - ppublish SO - J Endocrinol Invest. 2011 Jul;34(7 Suppl):35-9.