Heme oxygenase-1 as a therapeutic target in neurodegenerative diseases and brain infections.

Abstract:

:Heme oxygenase-1 (HO-1) catalyzes the degradation of heme to generate carbon monoxide, biliverdin and free iron. Increased HO-1 levels constitute an anatomopathological feature of many neurological diseases, such as neurodegenerative disorders and brain infections, which correlate with exacerbated oxidative stress and inflammation. It is generally accepted that the elevated HO-1 levels represent an attempt to restore redox homeostasis and to down-modulate inflammation. However, experimental observations indicate that the extent of HO-1 induction may be critical because excessive heme degradation may result in toxic levels of CO, bilirubin and, more importantly, iron. Pharmacological modulation of HO-1 levels in the brain, within therapeutic limits, shows promising results in models of Alzheimer's (AD), Parkinson's (PD) and of infectious diseases, such as malaria. A more complete understanding on how HO-1 is involved in the pathogenesis of neurological diseases will be essential to develop therapeutic approaches. In the next coming years we will witness the description of chemicals, drugs or dietary products that cross the blood brain barrier efficiently, activate HO-1 expression, and achieve neuroprotective and anti-inflammatory effects in vivo.

journal_name

Curr Pharm Des

authors

Cuadrado A,Rojo AI

doi

10.2174/138161208783597407

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

429-42

issue

5

eissn

1381-6128

issn

1873-4286

journal_volume

14

pub_type

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