BACKGROUND The origin of nasal polyps in chronic rhinosinusitis is unknown, but the role of viral infections in polyp growth is clinically well established. Toll-like receptors (TLRs) have recently emerged as key players in our local airway defense against microbes. Among these, TLR9 has gained special interest in viral diseases. Many studies on chronic rhinosinusitis with nasal polyps (CRSwNP)...

The muscular anatomy of the athecate hydroid Podocoryna carnea hydrorhiza is elucidated. The polyp-stolon junction is characterized by an opening, here called the chloe, in the otherwise continuous hydrorhizal perisarc. The chloe is elliptical when the polyp first arises, but takes on a more complex outline as multiple stolons anastomose to communicate with that polyp. Surrounding the polyp bas...

Restorative and endodontic procedures have been recently developed in an attempt to preserve the vitality of dental pulp after exposure to external stimuli, such as caries infection or traumatic injury. When damage to dental pulp is reversible, pulp wound healing can proceed, whereas irreversible damage induces pathological changes in dental pulp, eventually requiring its removal. Nonvital teet...

Hairy polyp is a rare, benign tumor that comprises ectodermal and mesodermal germ layers. The embryogenesis of hairy polyp is precisely unknown, and concurrently, it has a female predominance. Although hairy polyp is observed in every part of the body; it is frequently located in the nasopharynx and oropharynx. Respiratory distress and feeding difficulties are the most related symptoms. Differe...

We report the unusual case of a 85 year old woman presented with difficulty in swallowing food, sensation of mass in the throat since one year and cough with regurgitation of pink tubular mass from the mouth hung out of the mouth down to the chin since 15 days. On clinical examination the polyp was found arising from left side of hypopharynx. The polyp was excised per orally by laryngo microsco...

Abstract Objective Bone grafting is an important surgical procedure to restore missing bone in patients with alveolar cleft lip/palate, aiming stabilize either sides of the maxillary segments by inducing new formation, and bilateral cases also pre-maxilla. Polyphosphate (PolyP), a physiological polymer composed orthophosphate units linked together high-energy phosphate bonds, naturally existing...

The content of inorganic linear polyphosphate (polyP) and the polymeric degree (n) of these compounds were determined in the process of growth of the yeast Saccharomyces cerevisiae VKM Y-1173 in a medium, which contained varying Pi amount with the constant level of all the necessary components. For this purpose, a combination of chemical methods of polyP extraction and 31P-NMR spectroscopy stud...

Polyphosphate (polyP) is a highly anionic, linear polymer of inorganic phosphate that accumulates inmany infectiousmicroorganisms and is secreted by activated human platelets. Studies from our laboratory and others have shown that platelet polyP acts as a procoagulant stimulus at a number of points in the coagulation cascade. Although we do not currently understand all the mechanisms behind the...

The role of stem cells (SCs) in the pathogenesis of nasal polyp (NP) is still controversial, while some researchers approved increase in stem cell count in nasal polyp, others denied this finding. Therefore, this project aimed at studying this phenomenon by using immunhistochemical (IHC) technique by which nestin-labelled stem cell can be identified and counted in normal people & nasal polyp pa...

BACKGROUND Using polyp-phantoms we previously found a wide inter- and intra-observer variation in size assessment. MATERIALS AND METHODS Twenty-five endoscopically-resected colorectal polyps were conventionally measured with a millimetre ruler and subsequently placed on a photocopier. Two measurements (one week apart) were made on the photocopies, between two marks limiting the largest dimens...