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Oestradiol levels a...
Oestradiol levels and superoxide dismutase activity in age-related cataract : a case-control study
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- Skiljic, Dragana, 1985 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation
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- Nilsson, Staffan, 1956 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper,Department of Mathematical Sciences
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- Petersen, Anne, 1962 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation
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- Karlsson, Jan-Olof, 1944 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi,Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology
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- Behndig, Anders (författare)
- Umeå universitet,Oftalmiatrik,Umeå University
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- Kalaboukhova, Lada, 1975 (författare)
- Göteborgs universitet,University of Gothenburg
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- Zetterberg, Madeleine, 1969 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation
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(creator_code:org_t)
- 2016-11-29
- 2016
- Engelska.
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Ingår i: BMC Ophthalmology. - : Springer Science and Business Media LLC. - 1471-2415. ; 16
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Abstract
Ämnesord
Stäng
- Background: It has been suggested that the higher prevalence of cataract in women is caused by a withdrawal effect of oestrogen at menopause. In vitro studies have demonstrated protection of serum oestradiol (E2) against oxidative stress through upregulation of antioxidant enzymes, including superoxide dismutase (SOD). The purpose of the present study was to investigate E2 levels and SOD erythrocyte activity in patients with age-related cataract.Methods: The studied subjects consisted of 103 patients with age-related cataract and 22 controls. Cataracts were classified as nuclear, cortical, or posterior subcapsular. Blood samples were collected and data on smoking, hormonal use, diabetes and age at menarche/menopause was obtained for all individuals. Serum oestradiol analyses were performed with radioimmunoassay (RIA) and SOD activity was measured in erythrocyte lysates.Results: A negative correlation between age and E2 concentration was seen in a linear regression analysis. No correlation was seen between SOD activity and age or gender and no correlation between E2 levels and SOD activity was found using multiple linear regression. The mean level of E2 for all male subjects was 50.1 +/- 16.3 pmol/L, significantly higher compared to 13.8 +/- 11.8 pmol/L for postmenopausal women.Conclusion: The present study does not support a role for E2-induced effects on SOD in cataract formation. The findings of higher E2 levels in men than in postmenopausal women may suggest that decreased oestrogen at menopause is partially responsible for the gender-related difference in cataract prevalence. However, the latter can only be verified through prospective randomized trials using hormonal replacement therapy.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Oftalmologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Ophthalmology (hsv//eng)
Nyckelord
- Age-related cataract
- Gender
- Oestradiol
- Superoxide dismutase
- Oxidative
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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