Gold Nanoparticles Downregulate IL-6 Expression/Production by Upregulating microRNA-26a-5p and Deactivating the RelA and NF-κBp50 Transcription Pathways in Activated Breast Cancer Cells.

MicroRNAs (miRNAs) are involved in the modulation of pathogenic genes by binding to their mRNA sequences' 3' untranslated regions (3'UTR). Interleukin-6 (IL-6) is known to promote cancer progression and treatment resistance. In this study, we aimed to explore the therapeutic effects of gold nanoparticles (GNP) against IL-6 overexpression and the modulation of miRNA-26a-5p in breast cancer (BC) cells.

Synthesis of Chalcones Derivatives and Their Biological Activities: A Review.

Chalcone derivatives are considered valuable species because they possess a ketoethylenic moiety, CO-CH=CH-. Due to the presence of a reactive α,β-unsaturated carbonyl group, chalcones and their derivatives possess a wide spectrum of antiproliferative, antifungal, antibacterial, antiviral, antileishmanial, and antimalarial pharmacological properties. Recent developments in heterocyclic chemistry have led to the synthesis of chalcone derivatives, which had been biologically investigated toward certain disease targets.

An unexpected single crystal structure of nickel(II) complex: Spectral, DFT, NLO, magnetic and molecular docking studies.

This work explores the study of a synthesized nickel complex as a possible inhibitor against the main protease (Mpro) of the recent emerging coronavirus disease (COVID-19). Overall, the template reaction of 3-acetyl-2-hydroxy-6-methyl-4-pyran-4-one with nickel(II) chloride hexahydrate in -dimethylformamide (DMF) medium leads to the formation of neutral nickel complex. This resulting complex is formulated as [Ni(DHA)(DMF)] on the basis of FT-IR, UV-Vis.

Synthesis and characterization of nickel-doped ceria nanoparticles with improved surface reducibility.

Nickel-doped ceria nanoparticles (NiCeO NPs) were fabricated from Schiff-base complexes and characterized by various microscopic and spectroscopic methods. Clear evidence is provided for incorporation of nickel ions in the ceria lattice in the form of Ni species which is considered as the hole trapped state of Ni. The NiCeO NPs exhibit enhanced reducibility in H as compared to conventional ceria-supported Ni particles, while in O the dopant nickel cations are oxidized at higher valence than the supported ones.

Crystal structure of bis-(2-{[(3-bromo-prop-yl)imino]-meth-yl}phenolato-κ(2) N,O)copper(II).

In the title compound, [Cu(C10H11BrNO)2], the asymmetric unit consists of one-half of the mol-ecule, the other half being generated by an inversion centre. Hence the Cu(II) cation is symmetrically coordinated by two bidentate Schiff base anions in a slightly distorted square-planar environment with Cu-O and Cu-N bond lengths of 1.8786 (19) and 2.

Bis[μ-(3-acetyl-2-hy-droxy-6-methyl-4H-pyran-4-one-κ(3)O:O',O'')]diaqua-tetra-kis-(pyridine-κN)dicopper(II) diperchlorate.

In the centrosymmetric binuclear cation of the title compound, [Cu(C(8)H(7)O(4))(H(2)O)(C(5)H(5)N)(2)](2)(ClO(4))(2), the Cu(II) atoms are bridged by a pair of two dehydro-acetate anions in a bis-/monodentate mode. The distorted octa-hedral N(2)O(4) coordination sphere of the metal cation is completed by two pyridine N atoms and one O atom of a water mol-ecule. The complex cations and the perchlorate counter anions are arranged in layers parallel to (100).

catena-Poly[[[(pyridine-κN)copper(II)]-μ-3-{1-[(2-amino-eth-yl)imino]-eth-yl}-6-methyl-2-oxo-2H-pyran-4-olato-κN,N,O:O] perchlorate].

In the title compound, {[Cu(C(10)H(13)N(2)O(3))(C(5)H(5)N)]ClO(4)}(n), the Cu(II) atom has an N(3)O(2) coordination sphere. The complex contains two different ligands, viz. a pyridine mol-ecule and a Schiff base mol-ecule, resulting from the condensation of ethyl-enodiamine with dehydro-acetic acid.