13 Αποτελέσματα
The method of immediate root canal filling following vital pulp extirpation involves many problems to be solved clinically. Therefore, the present study was performed to increase the clinical usefulness by applying formalin medicine in the root canal before immediate root canal filling after vital
Guaiacol peroxidase (G-Px) was measured in extracts from five sections along the length of human uterus on different days of the menstrual cycle or after menopause. The lower uterine-endocervical region had a significantly higher G-Px content (expressed as enzyme units per g wet tissue) than the
The persistence of aroma compounds in breath after swallowing is an important attribute of the overall aroma experience during eating and drinking. It is mainly related to the coating of the oral tract with food residues and the interaction between volatile compounds and airway mucosa. We have
Brown carbon (BrC), which may include secondary organic aerosol (SOA), can be a significant climate-forcing agent via its optical absorption properties. However, the overall contribution of SOA to BrC remains poorly understood. Here, correlations between oxidation level and optical properties of SOA
Phenolic compounds are widely used in clinical dentistry as sedatives for the dental pulp, as disinfectants for caries, and as root canal medications. The pathobiological effects of various phenolic compounds on human dental pulp fibroblasts were investigated with Hoechst 33258 fluorescence assay
Model erythro, phenolic and non-phenolic lignin β -O-4 dimer compounds were reacted with copper oxide and H 2 O 2 at the electronic field maximum position of a single-mode 2.45-GHz microwave system equipped with a cavity resonator. The reaction products obtained via microwave heating and an oil bath
Previously we demonstrated the presence of phenol sulphotransferase (P-ST) in mouse nasal cytosols and identified its zonal location in mouse nasal cavity by staining with an antiserum raised against a rat liver P-ST isoenzyme, PSTg. In the present study a cDNA was isolated from a mouse olfactory
Salicylhydroxamic and benzohydroxamic acids were found to bind to the resting state of myeloperoxidase and inhibit ligand binding to the heme iron. An ionizable group on the enzyme with pKa = 4 affects salicylhydroxamic acid binding; binding occurs when this group is not protonated. The binding of
Mixed whole saliva contains salivary peroxidase (SPX) and myeloperoxidase (MPO), thus it is important to discriminate between the two peroxidases in order to understand their functions in the oral cavity. We developed a method to measure SPX activity in mixed whole saliva using an oxygen electrode.
A porous MOF constructed from a [Cu2(COO)4] secondary building unit, H3L (H3L = [1,1';3',1'']terphenyl-4,5',4''-tricarboxylic acid), and pyrazine ligands features a unique hendecahedron cage-like cavity with good stability and a high BET surface area of 3235 m(2) g(-1), showing good controlled drug
Egg-laying females of the pine weevil, Hylobius abietis (L.), regularly deposit feces adjacent to each egg. Egg cavities are gnawed in the bark of roots of recently dead conifer trees. After egg deposition, the cavity is sealed by feces and a plug of bark fragments. Root bark containing egg cavities
Cooking up enzymes: Iron protoporphyrin IX (heme) is bound within a hydrophobic cavity in subdomain IB of human serum albumin (HSA). Site-specific mutations to introduce proximal and distal histidines into the heme pocket of HSA conferred a peroxidase activity to the prosthetic heme group. The
Cytochrome c peroxidase (CCP) from Saccharomyces cerevisiae was subjected to directed molecular evolution to generate mutants with increased activity against 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). Using a combination of DNA shuffling and saturation mutagenesis, mutants were