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Characterization of Molecular Mechanisms of In vivo UVR Induced Cataract
13:56

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Published on: November 28, 2012

Targeting CYP450 modulation to decrease the risk of induced cataract in the experimental model.

D V Patel1, T R Gandhi, K V Patel

  • 1Department of Pharmacology, Anand Pharmacy College, SPU, Anand, India. dip_apc@yahoo.co.in

Indian Journal of Ophthalmology
|October 19, 2010
PubMed
Summary
This summary is machine-generated.

CYP450 enzyme modulation influences cataract development. Inhibitors delayed cataract onset, while inducers accelerated it, suggesting a role in cataract initiation.

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Area of Science:

  • Biochemistry
  • Ophthalmology
  • Pharmacology

Background:

  • Diabetes mellitus is a primary risk factor for cataract formation.
  • Certain diabetes medications modulate Cytochrome P450 (CYP450) enzymes, potentially impacting cataract risk.

Purpose of the Study:

  • To investigate the influence of CYP450 modulation on galactose-induced cataract development.
  • To assess the impact of CYP450 inhibitors and inducers on cataract initiation and progression.

Main Methods:

  • Galactosemic cataract was induced in Sprague-Dawley rats.
  • Rats were pretreated with a CYP450 inhibitor (nifedipine) or inducer (pioglitazone).
  • Cataract progression and biochemical lens changes (CYP450 activity, proteins, glutathione) were analyzed.

Main Results:

  • CYP450 inhibitor pretreatment delayed cataract occurrence; inducer pretreatment accelerated it compared to controls.
  • CYP450 activity was significantly decreased by the inhibitor and increased by the inducer.
  • Reduced glutathione levels remained unchanged, but total and soluble proteins increased.

Conclusions:

  • CYP450 enzymes appear to play a role in the initiation of cataract.
  • Modulation of CYP450 activity affects the onset of cataract but not its maturation pattern.