Abstract
Propofol (2,6-diisopropylphenol) is a hypnotic intravenous agent with in vivo antioxidant properties. This study was undertaken to examine the in vitro effect of propofol on lactoperoxidase (LPO; E.C. 1.11.1.7) obtained from bovine milk. Lactoperoxidase was purified with three purification steps: Amberlite CG-50 resin, CM-Sephadex C-50 ionexchange chromatography and Sephadex G-100 gel filtration chromatography, respectively. Lactoperoxidase was purified with a yield of 21.6%, a specific activity of 34 EU/mg proteins and 14.7-fold purification. One enzyme unit is defined as the oxidation of 1 μmol ABTS per min under the assay condition (25oC, pH: 6.0). To determine enzyme purity, sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) was performed and single band was observed. The effect of propofol on lactoperoxidase were determined using 2,2-azino-bis (3-ethylbenzthiazoline-6 sulfonic acid) diammonium salt (ABTS) as a chromogenic substrate. The IC50 value of propofol was found as 15.97 μM. Also, Ki constant for propofol was 3.72 μM and propofol was found as competitive inhibitor.
Keywords: Propofol, lactoperoxidase, enzyme, purification, inhibition, chromatography
Protein & Peptide Letters
Title: The Inhibitory Effect of Propofol on Bovine Lactoperoxidase
Volume: 16 Issue: 1
Author(s): Melda Sisecioglu, Murat Cankaya, Ilhami Gulcin and Hasan Ozdemir
Affiliation:
Keywords: Propofol, lactoperoxidase, enzyme, purification, inhibition, chromatography
Abstract: Propofol (2,6-diisopropylphenol) is a hypnotic intravenous agent with in vivo antioxidant properties. This study was undertaken to examine the in vitro effect of propofol on lactoperoxidase (LPO; E.C. 1.11.1.7) obtained from bovine milk. Lactoperoxidase was purified with three purification steps: Amberlite CG-50 resin, CM-Sephadex C-50 ionexchange chromatography and Sephadex G-100 gel filtration chromatography, respectively. Lactoperoxidase was purified with a yield of 21.6%, a specific activity of 34 EU/mg proteins and 14.7-fold purification. One enzyme unit is defined as the oxidation of 1 μmol ABTS per min under the assay condition (25oC, pH: 6.0). To determine enzyme purity, sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) was performed and single band was observed. The effect of propofol on lactoperoxidase were determined using 2,2-azino-bis (3-ethylbenzthiazoline-6 sulfonic acid) diammonium salt (ABTS) as a chromogenic substrate. The IC50 value of propofol was found as 15.97 μM. Also, Ki constant for propofol was 3.72 μM and propofol was found as competitive inhibitor.
Export Options
About this article
Cite this article as:
Sisecioglu Melda, Cankaya Murat, Gulcin Ilhami and Ozdemir Hasan, The Inhibitory Effect of Propofol on Bovine Lactoperoxidase, Protein & Peptide Letters 2009; 16 (1) . https://dx.doi.org/10.2174/092986609787049394
DOI https://dx.doi.org/10.2174/092986609787049394 |
Print ISSN 0929-8665 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5305 |
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
Related Articles
-
Antioxidants in Treating Pathologies Involving Oxidative Damage: An Update on Medicinal Chemistry and Biological Activity of Stobadine and Related Pyridoindoles
Current Medicinal Chemistry Effects of Mesenchymal Stromal Cells on Diabetic Cardiomyopathy
Current Pharmaceutical Design Energy Remodeling, Mitochondrial Disorder and Heart Failure
Current Pharmaceutical Design Urocortin: Cardiovascular Actions and Therapeutic Implications
Letters in Drug Design & Discovery Strategic Leukofiltration in Cardiac Surgery
Current Medicinal Chemistry - Cardiovascular & Hematological Agents Mitochondria-Targeted Antioxidant Peptides
Current Pharmaceutical Design Pharmacological Strategies for Neuroprotection in Traumatic Brain Injury
Mini-Reviews in Medicinal Chemistry Nutritional Aspects Relating to the Developmental Origins of Health and Disease
Current Women`s Health Reviews Relevant Modulation by Ferrous Ions of N-Methyl-D-Aspartate Receptors in Ischemic Brain Injuries
Current Neurovascular Research microRNA as Biomarkers and Regulator of Cardiovascular Development and Disease
Current Pharmaceutical Design Adrenomedullin in Hypertension
Current Hypertension Reviews The Injured Cochlea as a Target for Inflammatory Processes, Initiation of Cell Death Pathways and Application of Related Otoprotective Strategies
Recent Patents on CNS Drug Discovery (Discontinued) Necroptosis: Who Knew There were so Many Interesting Ways to Die?
CNS & Neurological Disorders - Drug Targets Pathogenesis of Stroke-Like Episodes in MELAS: Analysis of Neurovascular Cellular Mechanisms
Current Neurovascular Research Hematopoietic Progenitor and Stem Cells Circulate by Surfing on Intracellular Ca2+ Waves: A Novel Target for Cell-based Therapy and Anti-cancer Treatment?
Current Signal Transduction Therapy The Changing Landscape of Voltage-Gated Calcium Channels in Neurovascular Disorders and in Neurodegenerative Diseases
Current Neuropharmacology Multimodality Imaging in Acute Ischemic Stroke
Current Medical Imaging From Rapid to Delayed and Remote Postconditioning: The Evolving Concept of Ischemic Postconditioning in Brain Ischemia
Current Drug Targets Nuclear Hormone Receptors and Female Reproduction
Current Molecular Medicine Myocardial Expression of TNF-α, IL-1β, IL-6, IL-8, IL-10 and MCP-1 After a Single MDMA Dose Administered in a Rat Model
Current Pharmaceutical Biotechnology