Abstract

iris. The expression and activity were studied in cataractous lens and in diabetic retina of the donor eyes. A significant decrease in PON-AREase activity was seen in cataractous lens (P<0.05) but not in diabetic retina, and there was an increase in PON- HCTLase activity (P<0.05) only in diabetic retina. Bioinformatic studies and in vitro experiments indicated that advanced glycation end products (AGE) such as carboxymethyl -lysine might decrease the PON- AREase activity of the PON. Interpretation & conclusions: Distribution of PON enzyme and its activity in ocular tissues is reported here. The study revealed maximal PON activity in lens and retina, which are prone to higher oxidative stress. Differential activities of PON were observed in the lens and retinal tissues from cataractous and diabetic patients, respectively.

Details

Title
Ocular distribution of antioxidant enzyme paraoxonase & its alteration in cataractous lens & diabetic retina
Author
Subramaniam Bharathidevi 1 ; Babu, Kannadasan 1 ; Jain, Nishit 2 ; Sivashanmugam Muthukumaran 3 ; Vetrivel Umashankar 3 ; Biswas, J 4 ; Angayarkanni, Narayanasamy 1 

 RS Mehta Jain Department of Biochemistry & Cell Biology, KBIRVO Block, Vision Research Foundation, Chennai 
 Department of Pharmacy, Birla Institute of Technology and Science, Pilani 
 Centre for Bioinformatics, KBIRVO Block, Vision Research Foundation, Chennai 
 Uveitis Services, Sankara Nethralaya, Chennai 
Pages
513-520
Publication year
2017
Publication date
Apr 2017
Publisher
Scientific Scholar
ISSN
0971-5916
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2258202548
Copyright
© 2017. This work is published under https://creativecommons.org/licenses/by-nc-sa/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.