Search PubMed⌕ Search

Biomedical subjects

P Papanayiotou

Publications and source records attributed to P Papanayiotou.

15 recordsLinked to original sources
PubMed1998

Concurrence of torus palatinus with palatal and buccal exostoses: case report and review of the literature.

Exostoses, also known as hyperostoses, are localized bony protuberances that arise from the cortical plate. These developmental anomalies, or hamartomas, frequently affect the skeletal jaw. Different types of exostoses have been described. Torus palatinus and torus mandibularis are two of the most common intraoral exostoses. Other types of exostoses, affecting the palatal aspect of the maxilla (palatal exostoses) or the buccal aspects of the jaws (buccal exostoses), are less commonly encountered. Concurrence of different forms of exostoses in the same individual is very rare. A 48-year-old woman manifesting excessive palatal exostoses, torus palatinus, and buccal exostoses is described. We present the clinical and histopathologic features and applied therapy and provide a comprehensive review of the current features of exostoses.

Alveolar Process↗
PubMed1980

Urate excretion in old age.

Serum urate levels were marginally higher in 11 nonbacteriuric elderly men (5.1 +/- 1.8 mg%) than in 24 nonbacteriuric women (3.9 +/- 1.6 mg%) of the same age. Bacteriuric elderly subjects (6 men, 7 women) had lower levels, these being closely similar in the two sexes (3.4 and 3.6 mg%, respectively). Significant reductions of CIn, Ccreat, and TMPAH were observed for bacteriuric men, but not for bacteriuric women. Further, the CUrate:CIn ratio was higher in bacteriuric men and in women, bacteriuric or not, and was not depressed during the TMPAH periods. Increased daily intake of protein from 60 to 75 g was associated with higher serum urate levels in a larger group of subjects. We conclude that: (1) women, even at the age of 80 have a lower serum urate, related to a higher CUrate; (2) bacteriuria increases the ratio CUrate:CIn, particularly in men; (3) secretory mechanisms for urate differ from those of p-aminohippurate in the human, and (4) dietary protein overrides the effect of bacteriuria on serum urate without affecting the male:female ratio.

Aged↗
PubMedDate not supplied

[Serum immunoglobulins IgA, IgG and IgM, and oral lichen planus].

Oral lichen planus is a common dermatosis with oral manifestations. It is widely accepted that its unknown pathogenetic mechanism has an immunological background although the exact immune mechanism involved is not clear. In our research we attempted to estimate the participation of humoral immunity in the pathogenesis of the disease, comparing the levels of serum immunoglobulins IgG, IgA and IgM between a group of 24 patients with oral lichen planus and a group of 19 healthy individuals. Our results revealed no differences for immunoglobulins IgG and IgM (p greater than 0.05) but increased values of IgA were found (p less than 0.05). It is therefore concluded that humoral immunity is involved in lichen planus but it is difficult to explain its exact participation.

Humans↗