Tamoxifen and related compounds decrease membrane fluidity in liposomes. Mechanism for the antioxidant action of tamoxifen and relevance to its anticancer and cardioprotective actions?
| Autor: | Peter J. Quinn, Helen Wiseman, Barry Halliwell |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Antioxidant
Antioxidant action Membrane Fluidity medicine.medical_treatment Biophysics Phospholipid Antineoplastic Agents Fluorescence Polarization Pharmacology Biochemistry Antioxidants Lipid peroxidation chemistry.chemical_compound Structural Biology Liposomal lipid peroxidation Genetics medicine Membrane fluidity Animals skin and connective tissue diseases Molecular Biology Liposome Chemistry Cholesterol Cardioprotectant Heart Cell Biology Anticancer action Tamoxifen Mechanism of action Liposomes Cattle medicine.symptom hormones hormone substitutes and hormone antagonists medicine.drug |
| Zdroj: | FEBS letters. 330(1) |
| ISSN: | 0014-5793 |
| Popis: | Tamoxifen and related compounds decrease membrane fluidity in ox-brain phospholipid liposomes: their order of effectiveness is, 4-hydroxytamoxifen > 17β-oestradiol > tamoxifen >cis-tamoxifen >N-desmethyltamoxifen > cholesterol. A good positive correlation was demonstrated between the decrease in membrane fluidity by these compounds and their antioxidant ability as inhibitors of liposomal and microsomal lipid peroxidation (correlation coefficient, r = 0.99, P < 0.001, in both cases). The ability of tamoxifen to decrease membrane fluidity is suggested to be the mechanism of its antioxidant action and is discussed in relation to its anticancer and cardioprotective actions. |
| Databáze: | OpenAIRE |
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