Background: During the initial phase of an infection, there is an upregulation of inducible nitric oxide synthase in the macrophages for the production of nitric oxide. This is followed by the recruitment of polymorphonuclear leukocytes (neutrophils) which release arginase. Arginase competes with inducible nitric oxide synthase for a common substrate L-arginine. Objective: To investigate whethe...

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introduction: ferric sulfate pulpotomy is a safe and effective method of the pulpotomy of primary teeth. but the results of different studies indicate low success rate of ferric sulfate pulpotomy in comparison to formocresol pulpotomy and a portion of these failures may be related to stimulating and harmful effects of zinc oxide eugenol paste. the aim of this study was to determine and compare ...

the improvement of the physical properties of indium tin oxide (ito) layers is quite advantageous in photovoltaic applications. in this study the ito film is deposited by rf sputtering onto p-type crystalline silicon (c-si) with (100) orientation, multicrystalline silicon (mc-si), and glass substrates coated with zno and annealed in vacuum furnace at 400°c. electrical, optical, structural and m...

statement of the problem periodontal disease is a periodontal tissue inflammation caused by gram-negative and other bacteria. the release of various cytokins and mediators, including nitric oxide, in the inflammation area usually has determental effects on the periodontium, potentiating the inflammatory process. in order to prevent this side effect, investigatiors have used anti-oxidants such a...

The preparation of nanostructure type manganese oxide and cobalt oxide materials with the smallest particle size is reported here. The nanorod manganese oxide and cobalt oxide nanotube were prepared via a sol-gel reaction in reverse micelles from KMnO4 and CoCl2 with respectively source at room-temperature. The structure and surface morphology of the obtained manganese oxide were studied by mea...

In this study, natural ingredients were added to bio-soaps, synthesized from castor oil, a plant-derived ingredient, improve the detergency, anti-bacterial, and stability capabilities (saponin Soapacean fruit essential oil of chamomile) such soap. The saponin soapnut was extracted by an extraction process based on ethanol extraction. concentration in extract determined UV-Vis spectroscopy metho...