Although aluminum excess is an apparent pathogenetic factor underlying osteomalacia in dialysis-treated patients with chronic renal failure, the mechanism by which aluminum impairs bone mineralization is unclear. However, the observation that aluminum is present at osteoid-bone interfaces in bone biopsies of affected patients suggests that its presence at calcification fronts disturbs the cellu...

In the title compound, C16H12O5, synthesized from isopthaloyl chloride and 2'-hy-droxy-aceto-phenone, the dihedral angle between the planes of the aromatic rings is 71.37 (9)°. In the crystal, carb-oxy-lic acid inversion dimers generate R 2 (2)(8) loops. The dimers are linked by C-H⋯O inter-actions, generating (101) sheets.

the aim of the present study was to synthesis a series of phthalimides based on our previous works and examine their anxiolytic properties. using a three steps process, phthalimides were prepared from the corresponding di-methyl phthalate derivatives. phthalic anhydride was nitrated to produce 3-nitrophthalic acid. ring closer of either 3-nitrophthalic acid or di-methyl phthalate with urea were...

This study was designed in order to correlate the flavonoid and lipoidal matters content of Spinach roots and flowers to their hypolipidemic potential. The total flavonoid content was measured via complexation with aluminum chloride while determination of fatty acids methyl esters and unsaponifiable matters contents in both organs was performed using GC/MS. In an in vitro study, the crude etha...

Objective Metals can cause male infertility through affection of spermatogenesis and sperm quality. Strong evidences confirm that male infertility in metal-exposed humans is mediated via various mechanisms such as production of reactive oxygen species (ROS). Flavonoids have antioxidant and metal chelating properties which make them suitable candidates for neutralizing adverse effects of metals ...

Modulation of the N-azo coupling between ring-substituted arenediazonium chlorides and premixed methylamine-formaldehyde leads not only to 1-aryl-3-hydroxymethyl-3-methyltriazenes and their dimers, but also to unexpected cyclic and complex products. The syntheses comprise reactions with arenediazonium chlorides bearing both -M and +M substituents at para and ortho/para positions of the phenyl r...

Airborne measurements of the halogenated trace gases methyl chloride, methyl bromide and chloroform were conducted over the Atlantic Ocean and 1000 km of pristine tropical rainforest in Suriname and French Guyana (3–6 • N, 51–59 • W) in October 2005. In the boundary layer (0–1.4 km), maritime air masses initially low in forest hy-5 drocarbons, advected over the forest by southeasterly trade win...

The title complex, [(C(4)H(9))(4)N](2)[Mo(6)(C(7)H(6)ClN)O(18)], was prepared by the reaction of (Bu(4)N)(4)[α-Mo(8)O(26)] and 2-methyl-5-chloro-aniline hydro-chloride with N,N'-dicyclo-hexyl-carbodiimide as dehydrating agent in dry acetonitrile solution. The aryl-imido ligand is linked to an Mo atom of the Lindqvist-type hexamolybdate anion by an Mo N triple bond, with a bond length of 1.732 (...