Yellow nail syndrome in an elderly sudanese female: A case report

Abstract

Yellow nail syndrome is a very rare disorder that has been noticed since 1927. 1 It affects both sexes equally, with an age of more than 40 years being typical. 2 The exact pathogenesis remains unclear but lymphatic system anatomical and functional abnormalities remain the predominant theory, while other hypotheses suggest autoimmune, cancer, and paraneoplastic roles. 3 Also, a very rare familial case has been reported. 1 Although it is only found in 27%-60% of patients The diagnosis depends on the presence of 2 out; of the characteristic nail changes, respiratory tract infection, and lymphedema. The latter occurs in up to 80% of cases and

Synthesis, characterization, antibacterial, antioxidant activities, density functional theory, and molecular docking studies of new organic metal complexes and links to application of corrosion inhibitors

“…The maximum binding activity of the [Yb(L)(H 2 O) 2 ] Cl 3 Á4H 2 O complex on B. subtilis and E. coli was found to be À10.7 and À8.90 kcal mol À1 , which was quite similar to the outcomes of the experimental study (14 and 13 mm mg À1 ). [6,12] The 3D structures of the 6Y84, 6KOC, and 6LU4 receptors are displayed in Figure 13 and were taken from the Protein Data Bank (PDB). The energy-saving 3D structures for the organic ligand and its metal complexes were docked in order to illustrate the active binding regions from these receptors.…”

“…As noted in our previous work, the used tools available were cited. [6,12,13] Corrosion experiments were executed according to the standard method ASTM G59-97(2014) by Gamry 3000 potentiostat/galvanostat/ZRA, and Echem Analyst 7 was consumed to clarify result. Electrochemical cell consists of AlSi, saturated calomel electrode (SCE), and a platinum wire where they consumed as working, reference, and counter electrodes, respectively.…”

“…The ligand may soon be employed to create antibacterial medications. [6,18] According to the results of antimicrobial tests of lanthanide(III) ions complexes, their antibacterial properties are comparable to those of standard antibiotics; therefore, the design and synthesis of new compounds that could be potential antibacterial drugs need further study.…”

“…aureus and E. coli organisms compared with our reported Er(III) and Yb(III) complexes that revealed the maximum zone of inhibition of 14 and 15 mm and 13 and 13 mm, respectively. [6] 3.6 | Molecular docking study X-ray structure of the proton-pumping cytochrome aa3-600 menaquinol oxidase from B. subtilis complexed with 3-iodo-N-oxo-2-heptyl-4-hydroxyquinoline (6KOC) and crystal structure of the substrate binding protein from Microbacterium hydrocarbonoxydans complexed with propylparaben (6LU4) and SARS-CoV-2 main protease per unliganded active site (2019-nCoV, coronavirus disease 2019 [COVID-19]) (6Y84) exposed excellent binding relations through numerous studies. Molecular docking experiments were conducted in the direction of expecting the favored binding sites and the molecule's chosen orientation so as to better realize the interactions of organic ligand and its metal complexes using SARS-CoV-2 (6Y84), B. subtilis (6KOC), and E. coli (6LU4) receptors.…”

“…The unique electrical arrangement of the lanthanide complexes was attributed with explaining their biological activity. [6] Because of their nearly the same physical and chemical characteristics, tantalum and the vanadium triad are the chemical "twins" of each other in the periodic table and notoriously difficult to separate from one another and from their naturally occurring ores. This symmetry in behavior has been explained by the fact that the elements' lanthanide contraction and ionization energies are the same.…”