Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0086543 (cataract)
 29,165 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A structure ocular toxicity study in the rat of (4' - pyridyl) - 1 piperazine and of some derivatives with psychopharmacological profile, allows some interesting conclusions. (4' - pyridyl) - 1 piperazine does not lead to crystalline lens opacity, though some aryloxypropanol or aryloxypropyl derivatives do. At least, (2' - pyridyl) - 1 piperazine and one aryloxpropanol derivative do not improve cataract. So the appearance of cataracts is probably due to substitution of an alkylaryl side chain on the N-4 position of (4' - pyridyl) - piperazine.
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PMID:Induction of cataracts in the rat by derivatives of (4' -pyridyl) - 1 piperazine. 50 49

Analogues of N,N-dimethyl-4-(pyrimidin-2-yl)piperazine-1-sulfonamide possessing a free radical scavenger group (FRS), chelating groups (CHL), or both (FRS + CHL) have been synthesized. Electrospray ionization mass spectrometry studies indicate that select members of this series bind ions in the relative order of Cu(1+) = Cu(2+) > Fe(2+) = Fe(3+) > Zn(2+) with no binding of Ca(2+) or Mg(2+) observed. In vitro evaluation of these compounds in human lens epithelial, human retinal pigmented epithelial, and human hippocampal astrocyte cell lines indicates that all analogues possessing the FRS group as well as the water-soluble vitamin E analogue 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid protect these cells against decreased cell viability and glutathione levels induced by hydrogen peroxide. In addition, those compounds possessing CHL groups also protected these cells against hydroxyl radicals generated by the Fenton reaction. These compounds are good candidates for the preventive treatment of cataract, age-related macular degeneration (AMD), and Alzheimer's dementia (AD).
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PMID:Multifunctional antioxidants for the treatment of age-related diseases. 2007 5