The pathogenesis is still unclear; however, PDD may be caused by various pathologic changes, such as an increase in the number of Lewy bodies in brain tissue, neurofibrillary tangles, senile plaque formation, microvascular lesions, and the presence of argyrophilic
inclusion bodies [4-8].
A study in 41 specimens of DNA status, proliferating cell-nuclear antigen immunostaining, and argyrophilic
nucleolar-organizer region counts," Human Pathology, vol.
Histochemical stains (PAS, Grocott's silver impregnation, and Ziehl-Neelsen) disclosed no fungi, argyrophilic
, or acid-fast microorganisms.
network is fragmented (Figure 5(a)).
Azzopardi et al (4) in 1982, based on positive modified silver staining and demonstration of neuroendocrine secretory granules on electron microscopy, referred to these tumors as argyrophilic
Different researchers have carried out different methods to assess the grading of the different types of ameloblastomas of which one of the methods which assess the proliferative activity of ameloblastoma are argyrophilic
nucleolar organizer regin (AgNOR) which stains the proteins with silver stain which is associated with active nucleolar organizer regions (NOR|), these are DNA loops that transcribe to ribosomal RNA directs protein synthesis and ribosomal formation.9 AgNOR numbers rise with the proliferative activity of the cell, AgNOR are used to diagnose histopathological aspects of various benign and malignant lesions.10
The objectives of this study were to compare the argyrophilic
nucleolar organizer region (AgNOR) parameters and estrogen receptor status with grades of invasive ductal carcinoma of breast.
[sup] found low expression of the argyrophilic
nucleolar organizer regions and proliferating cell nuclear antigen activity was significantly correlated with the VDT of RCC.
fibers were stained by Foot method, and fibrin was stained by Shueninov.
Mesquita RA found higher numbers of Argyrophilic
Nucleolar Organizer Regions (AgNORs) and proliferating cell nuclear antigen (PCNA)-positive cells in ossifying fibroma than in peripheral ossifying fibroma indicating higher proliferative activity in ossifying fibroma, X-ray diffraction analysis indicated that the mineral phase of both central and peripheral tissues consists of apatite crystals and that the crystallinity of these apatites is lower than that of bone apatite.