The Inhibitory Effect of KCN, NaN3 and some Bivalent Ions on Lipoxygenase Activity of the Purified Human Placental Effect of bivalent ions on lipoxygenase activity
Iranian Journal of Pharmaceutical Sciences,
Vol. 9 No. 1 (2013),
6 Bahman 2024
,
Page 39-45
https://doi.org/10.22037/ijps.v9.40916
Abstract
Lipoxygenase (LOX) catalyzes irreversible transfer of oxygen molecule to Arachidonic and Linoleic acid to produce 13 Hydroproxy Octadecadienoic acid. Recent studies showed that the involvement of Lipoxygenase products, leukotrienes, in inflammations and Lipoxygenase pathways acts as mediators of early inflammatory events in atherosclerosis. The aim of the present study is purification and characterization of Lipoxigenase from Human placental.For this aim, the human placental Lipoxigenase was extracted and purified by normal butanol, acetone, ammonium sulphate (30-80%), and gel permeation chromatography on Sephadex G-150. After purification and characterization of LOX, the in vitro inhibitory effect of KCN, NaN3 and some selected bivalent ions such as Co2+, Ni2+, Cu2+, and Zn2+ were checked on the activity of purified LOX. Results showed that specific activity was 123.16 u/mg proteins and the yield of purification was 21.84 percent. Also, it was found that Co2+, Ni2+, KCN, and NaN3 at concentration of 20 mM had inhibitory effect on LOX activity and their inhibitory was 72.4, 58.2, 56.5 and 42.3% respectively. However, Cu2+ stimulated the lipoxygenase activity at the same concentration whereas Zn2+ has no significant effect on LOX activity. With respect to increase of LOX activity in the patient with cardiovascular diseases, Alzheimer disease, cancer, chronic obstructive pulmonary disease (COPD), artherogenesis, and also airway inflammation diseases, suggesting that LOX inhibition may have beneficial effects as a potential target to limit the severity of related symptoms of these diseases and therefore these inhibitors could be considered as an agent for decreasing the enzyme activity in association with the disease.
- Bivalent ions
- Chemical Inhibitors
- Chromatography
- Humane placenta
- LOX activity
- LOX isolation
How to Cite
References
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