nucleolar organizer regions (nor) are defined as nucleolar components containing a set of argyrophilic proteins which are selectively stained by colloidal silver nitrate staining. although studies have shown that the number of nor dots or particles is directly related to the rapidity of cell proliferation in cancer cells, prognostic or diagnostic value of nor remains controversial. the aim of t...

Nucleolar organising regions (NOR) are part of the nucleolus, containing argyrophilic proteins (nucleoclin/C23, nucleophosmin/B23). They are identified by silver staining at low pH. The method also reveals osteocyte canaliculi and cement lines and granules in the cytoplasm of kidney cells in locations that mimic osteopontin distribution. Human bone and kidney sections, benign and lymphomatous p...

PURPOSE To investigate gastric juice nitrate/nitrite concentration according to mucosal surface pH extent (area) of gastric corpus intimately contacting the gastric juice. MATERIALS AND METHODS We included ninety-nine patients with dyspepsia. To evaluate gastric mucosal surface pH and its extent, gastric chromosocpy was performed by spraying phenol red dye on the corpus mucosa and estimating ...

The karyological features of Akis subtricostata was determined for the first time with conventional and silver nitrate staining. diploid number 2n=16 meioformula 7+neoXY represents a deviation from modal karyotype Coleoptera. pericentromeric heterochromatin detected both Giemsa In addition to determining single possible NOR on prophase I nuclei, AgNO3 revealed that several telomeric regions mit...

Dentin phosphoprotein (phosphophoryn, DPP) is a unique acidic protein in dentin. Except for type I collagen, DPP is the most abundant extracellular matrix protein in dentin. This protein is characterized by high contents of phosphoserine (45-50%) and aspartic acid (35-38%) (Butler et al., 1995)1). Because of the high levels of aspartic acid and phosphoserine, this protein has polyanionic charac...

OBJECTIVE Hemorrhagic cystitis is a challenging clinical entity with limited evidence available to guide treatment. The use of intravesical silver nitrate has been reported, though supporting literature is sparse. Here, we sought to assess outcomes of patients treated with intravesical silver nitrate for refractory hemorrhagic cystitis. MATERIAL AND METHODS We identified nine patients with re...

This study aims to assess and compare copaiba oleoresin of Copaifera multijuga and 0.5% silver nitrate for the induction of pleurodesis in an experimental model. Ninety-six male Wistar rats were divided into three groups: control (0.9% saline solution), copaiba (copaiba oil), and silver nitrate (0.5% silver nitrate). The substances were injected into the right pleural cavity and the alterations...

In spite of various cytogenetic works on suborder Heteroptera, the chromosome organization, function and its evolution in this group is far from being fully understood. Cytologically, the family Rhyparochromidae constitutes a heterogeneous group differing in chromosome numbers. This family possesses XY sex mechanism in the majority of the species with few exceptions. In the present work, multip...