PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 7369466

Hyperparathyroidism in the elderly.

H Mannix·L J Pyrtek·H D Crombie·E Canalis
View original source ↗Export metadata ↓

Abstract

Primary hyperparathyroidism seems to be increasing in incidence in elderly patients. Their symptoms are somewhat different from those encountered in younger patients, the most striking difference being the increase in the number of patients with mental changes. Twenty-nine patients, 23 women and 6 men, were treated at two community hospitals. Surgery was successful in all instances with no postoperative mortality and a low rate of complications. When properly evaluated, elderly patients tolerate parathyroid exploration very satisfactorily.

Explore related subjects

AdenomaAgedBone CystsBone and BonesFemaleHumansHypercalcemiaHyperparathyroidismMaleMental DisordersPainParathyroid NeoplasmsJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

H Mannix, L J Pyrtek, H D Crombie, E Canalis. 1980. Hyperparathyroidism in the elderly.. https://doi.org/10.1016/0002-9610(80)90341-4

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2009

HMGA proteins up-regulate CCNB2 gene in mouse and human pituitary adenomas.

The high mobility group As (HMGAs) belong to a family of nonhistone nuclear proteins that orchestrate the assembly of nucleoprotein complexes. Through a complex network of protein-DNA and protein-protein interaction, they play important roles in gene transcription, recombination, and chromatin structure. This protein family is involved, through different mechanisms, in both benign and malignant neoplasias. We have recently reported that transgenic mice carrying the Hmga1 or Hmga2 genes under transcriptional control of the cytomegalovirus promoter develop pituitary adenomas secreting prolactin and growth hormone. We have shown that the mechanism of the HMGA2-induced pituitary adenoma is based on the increased E2F1 activity. The expression profile of mouse normal pituitary glands and adenomas induced in HMGA transgenic mice revealed an increased expression of the ccnb2 gene, coding for the cyclin B2 protein, in the neoplastic tissues compared with the normal pituitary gland. Here, we show, by electrophoretic mobility shift assay and chromatin immunoprecipitation, a direct binding of HMGA proteins to the promoter of ccnb2 gene, whereas luciferase assays showed that HMGAs are able to up-regulate ccnb2 promoter activity. Finally, we report an increased CCNB2 expression in human pituitary adenomas of different histotypes that is directly correlated with HMGA1 and HMGA2 expression. Because cyclin B2 is involved in the regulation of the cell cycle, these results taken together indicate that HMGA-induced cyclin B2 overexpression gives an important contribution to experimental and human pituitary tumorigenesis.

Adenoma↗
PubMed1996

Gastric mucosa abnormalities and tumorigenesis in mice lacking the pS2 trefoil protein.

To determine the function of the pS2 trefoil protein, which is normally expressed in the gastric mucosa, the mouse pS2 (mpS2) gene was inactivated. The antral and pyloric gastric mucosa of mpS2-null mice was dysfunctional and exhibited severe hyperplasia and dysplasia. All homozygous mutant mice developed antropyloric adenoma, and 30 percent developed multifocal intraepithelial or intramucosal carcinomas. The small intestine was characterized by enlarged villi and an abnormal infiltrate of lymphoid cells. These results indicate that mpS2 is essential for normal differentiation of the antral and pyloric gastric mucosa and may function as a gastric-specific tumor suppressor gene.

Adenoma↗