Synthesis of New Class of Functionalized Flavones/Isoxazole Derivatives-Nitrile oxide 1,3-Dipolar Cycloaddition

A new series of functionalized flavone-isoxazole derivatives have been synthesized from alkyne tethered 3-hydroxy flavone by adopting facile synthetic method, intermolecular nitrile oxide 1,3-dipolar cycloaddition in the presence of eco-friendly sodium hypochloride oxidant under mild reaction conditions. Structures of all the synthesized compounds were established on the basis of 1H NMR, 13C NMR and ESI-mass.

Application of indirect electrochemical oxidation of blood in a complex of intensive therapy in children with urolithiasis complicated with chronic kidney disease

Objective. To study the efficacy of sodium hypochlorite in children with urolithiasis complicated by chronic kidney disease (CKD). Materials and methods. The results of the use of sodium hypochlorite 0.03-0.06 % in the pre- and postoperative period in 20 patients with urolithiasis complicated by stage IV CKD were analyzed. The indices of endogenous intoxication in venous cubital blood (VСK), mixed venous blood (MVB) flowing to the lungs and arterial blood (AB) flowing from the lungs were studied. Indirect electrochemical oxidation of blood (IEOB) was carried out in 20 patients with stage. For children under 12 years old, we used 0.03 %, and for the older age group from 12 to 18 years old ‒ 0.06 %, the volume of the injected solution did not exceed 1/10 of the patient’s CBV per infusion, at a rate of 40-60 drops/min. We have studied the use of sodium hypochloride (NaCIO) as a component of complex intensive care (CIC) in preoperative preparation in children with urolithiasis complicated by CKD and the effect of sodium hypochloride on detoxification lung function (DLF). Results. There was a significant increase in low molecular weight toxic substances (creatinine, calurea), average mass molecules (AMM), lipid peroxidized products, oligopeptides of a high necrotic body mass (NB), circulating immune complex (CIC), integral indicators of toxicity leukocyte index of intoxication and index of intoxication, as well as a decrease in antioxidant protection, more pronounced at sub- and decompensated stages of DLF impairment in the examined group of patients before treatment in the basin of VKK, VCK and AB. In 7 (35.0 %) patients ‒ 1b compensated, in 13 (65.0 %) ‒ subcompensated stage of impairment. Conclusions. CIC with the use of IEOB in the preoperative preparation by infusion of sodium hypochlorite in this subgroup of patients significantly improved DLF in relation to NB, CIC and high-weight oligopeptides. The use of NaCIO leads to inactivation of the entire spectrum of AMM and large toxic molecular compounds fixed on the membranes of blood corpuscles, and also, ensures the transformation of hydrophobic metabolites into hydrophilic ones, which are actively excreted by excretory organs.

Contrasting efficacy of cocoa POD HUSK extract and 8% propolis extract in maintaining of root canal wall cleanliness

Background: The existence of the smear layer, which can be produced during root canal instrumentation, may compromise the bond between filling material and the root canal walls. Therefore, the use of an effective root canal irrigation solution, a commonly employed form of which is sodium hypochloride (NaOCl), is important. Sodium hypochloride has several positive properties including effectiveness as a disinfectant agent and its ability to promote tissue-dissolution, although it is ineffective at cleaning the smear layer. There have been numerous recent studies of the application of phytomedicines in endodontics due to their advantages such as minimum toxicity and cost effectiveness. The saponin contained in both the propolis and cocoa pod husk acts as a surfactant that may lower surface tension and dissolve debris containing organic and anorganic materials. Purpose: The study aimed to provide evidence of the differences between root canal wall cleanliness when treated with 8% propolis extract and different concentrations of cocoa pod husk extract. Methods: 25 extracted teeth with single straight root canals were randomly divided into five categories (n=5). Sample preparation was performed using a rotary file and irrigated with different solutions. The first group was administered 2.5% NaOCl, the second group 8% propolis, the third group 3.12% cocoa pod husk extract, the fourth group 6.25% cocoa pod husk extract, and the fifth group 12.50% cocoa pod husk extract. The samples were then dissected into two sections at the apical third and their cleanliness scores subjected to a Mann-Whitney test with a significance level of p=0.05. Results: A significant difference was identified between all groups (p<0.05) and on the median control test, the highest value of 1.6 was recorded by the 6.25% cocoa pod husk extract, compared to the other four groups Conclusion: Cocoa pod husk extract demonstrates greater efficacy at cleaning root canal walls compared to 8% propolis extract.