Non-dioxin like polychlorinated biphenyls (NDL-PCBs) are legacy environmental contaminants with contemporary unintentional sources. NDL-PCBs interact with ryanodine receptors (RyRs), Ca(2+) channels of sarcoplasmic/endoplasmic reticulum (SR/ER) that regulate excitation-contraction coupling (ECC) and Ca(2+)-dependent cell signaling in muscle. Activities of 4 chiral congeners PCB91, 95, 132, and ...

statement of the problem: endodontic irrigants and medicaments may affect the bond strength of intracanal posts to root dentin. purpose: the aim of this study was to compare the effect of calcium hydroxide (ca(oh) 2 ) and 2% chlorhexidine gel (chx) on bond strength of fiber post cemented with resin cement to root dentin. materials and method: this in vitro experimental study was conducted on 36...

This study investigates the effect of gluconate, a carboxylate anion, and three uncharged hexitols, D-sorbitol, d-mannitol D-galactitol on solubility C-S-H. Thermodynamic modeling is used to determine kind amount Ca-organic-silicate-OH complexes that potentially form in conditions studied. All organics with calcium hydroxide. In addition, heteropolynuclear calcium, hydroxide silicate are observ...

PURPOSE The aim of this study was to evaluate, in vitro, the quality of calcium hydroxide [Ca(OH)(2)] paste filling (Ultracal, Ultradent) associated or not with Ca(OH)(2)-containing gutta-percha points (Calcium Hydroxide Plus Points, Roeko) in curved root canals. MATERIAL AND METHODS One hundred and twenty roots of extracted human teeth, randomly divided into three curvature ranges (mild - 0 ...

The aim of this study was to evaluate edemogenic activity and subcutaneous inflammatory reaction induced by Psidium cattleianum leaf extracts associated with Ca(OH)2. Thirty male Wistar rats, split equally into three groups [aqueous extract + Ca(OH)2; ethanolic extract + Ca(OH)2; and propylene glycol + Ca(OH)2], were assessed every 3 h or 6 h (five animals in each period). Under general anesthe...

introduction: the purpose of this study was to determine the in vitro antimicrobial ability against entrococcus (e.) faecalis of triple antibiotic paste and its components compared with calcium hydroxide mixtures . materials and methods: an agar well diffusion assay and mic method were used to determine the efficacy of the experimental medicaments in removing e. faecalis. medicaments were divid...

Carbonation-cementation and bulk reaction mechanisms are studied in systems containing closely packed mixes of particulate Fe (0) (~10 ?m) Ca(OH)2 (0%, 5%, 10% 15% w/w Ca(OH)2) subjected to elevated CO2-pressure (1, 5, 10, 20 barg) temperature (30 °C 60 °C). Solid solutions (CaxFe1-x)CO3 series minerals observed through shifting broadening XRD-reflections with variations content, temperature. T...

Plant-based diets with sufficient calcium (Ca) supplements are needed to protect the body from Ca deficiencies. The enrichment of protein ingredients during fractionation can provide a new route increase content in plant-based products. We, therefore, investigated if partial replacement NaOH by Ca(OH)2 neutralization step process affects functional properties protein-rich fractions. and oil obt...