Document Detail


A link between maternal malnutrition and depletion of glutathione in the developing lens: a possible explanation for idiopathic childhood cataract?
MedLine Citation:
PMID:  23800298     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Lens cataract is the leading cause of blindness in developing countries. While cataract is primarily a disease of old age and is relatively rare in children, accounting for only four per cent of global blindness, childhood cataract is responsible for a third of the economic cost of blindness. While many of the causes of cataract in children are known, over half of childhood cataracts are idiopathic with no known cause. The incidence of idiopathic cataract is highest in developing countries and studies have discovered that low birth weight is a risk factor in the development of idiopathic childhood cataract. As low birth weight is a reflection of poor foetal growth, it is possible that maternal malnutrition, which is endemic in some developing countries, results in the altered physiology of the foetal lens. We have conducted a review of the literature that provides evidence for a link between maternal malnutrition, low birth weight and the development of childhood cataract. Using our accumulated knowledge on the pathways that deliver nutrients to the adult lens, we propose a cellular mechanism, by which oxidative stress caused by maternal malnutrition affects the development of antioxidant defence pathways in the embryonic lens, leading to an accelerated onset of nuclear cataract in childhood.
Authors:
Deepa Kumar; Julie C Lim; Paul J Donaldson
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-6-25
Journal Detail:
Title:  Clinical & experimental optometry : journal of the Australian Optometrical Association     Volume:  -     ISSN:  1444-0938     ISO Abbreviation:  Clin Exp Optom     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-6-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8703442     Medline TA:  Clin Exp Optom     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 The Authors. Clinical and Experimental Optometry © 2013 Optometrists Association Australia.
Affiliation:
Department of Optometry and Vision Science, University of Auckland, Auckland, New Zealand; New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand.
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