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Antioxidant status in patients with uncomplicated insulin‐dependent and non‐insulin‐dependent diabetes mellitus
Abstract
Oxidative damage by free radicals has been implicated in the pathogenesis of vascular disease in diabetes. We compared the radical‐scavenging antioxidant activity of serum from 28 patients with insulin‐dependent diabetes mellitus and 24 patients with non‐insulin‐dependent diabetes mellitus uncomplicated by vascular disease with age‐matched non‐diabetic control subjects. Patients with insulin‐dependent diabetes had significantly reduced total antioxidant activity (320.2 ± 11.3 vs. 427.5 ± 19.2 μmol L−1; P < 0.001). This was attributable to lower urate (209.4 ± 10.4 vs. 297.1 ± 16.7 μmol L−1; P < 0.001) and vitamin C levels (63.6 ± 6.0 vs. 87.5 ± 4.9 μmol L−1; P < 0.01). Patients with non‐insulin‐dependent diabetes had lower total antioxidant activity than age‐matched control subjects (433.8 ± 25.4 vs. 473.9 ± 30.2 μmol L−1; NS), reflecting lower urate (299.5 ± 19.4 vs. 324.8 ± 21.4 μmol L−1; NS) and vitamin C levels (38.6 ± 5.7 vs. 58.5 ± 5.3 μmol L−1; P < 0.05). Multiple regression analysis showed that urate, vitamin C and vitamin E were the major contributors to serum total antioxidant activity. These results show that diabetic patients have significant defects of antioxidant protection, which may increase vulnerability to oxidative damage and the development of diabetic complications.
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Cited by
DeFronzo, R. A., Ferrannini, E., Groop, L., Henry, R. R., Herman, W. H., Holst, J. J., Hu, F. B., Kahn, C. R., Raz, I., Shulman, G. I., et al. (2015) · Nature Reviews Disease Primers · doi:10.1038/nrdp.2015.19 · Cited by 2,611
Oxidative Stress and Stress-Activated Signaling Pathways: A Unifying Hypothesis of Type 2 Diabetes
Evans, J. L., Goldfine, I. D., Maddux, B. A., & Grodsky, G. M. (2002) · Endocrine Reviews · doi:10.1210/er.2001-0039 · Cited by 2,232
Hansel, B., Giral, P., Nobecourt, E., Chantepie, S., Bruckert, E., Chapman, M. J., & Kontush, A. (2004) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2004-0305 · Cited by 477
Hyperuricaemia and gout in cardiovascular, metabolic and kidney disease
Borghi, C., Agabiti-Rosei, E., Johnson, R. J., Kielstein, J. T., Lurbe, E., Mancia, G., Redon, J., Stack, A. G., & Tsioufis, K. P. (2020) · European Journal of Internal Medicine · doi:10.1016/j.ejim.2020.07.006 · Cited by 435
Proposed mechanisms for the induction of insulin resistance by oxidative stress
Bloch-Damti, A., & Bashan, N. (2005) · Antioxidants & Redox Signaling · doi:10.1089/ars.2005.7.1553 · Cited by 388
Metadata
- Authors
- MAXWELL, S. R. J., THOMASON, H., SANDLER, D., LEGUEN, C., BAXTER, M. A., THORPE, G. H. G., JONES, A. F., & BARNETT, A. H.
- Venue
- European Journal of Clinical Investigation
- Publisher
- Wiley
- Published
- 1997-06
- Volume
- 27
- Issue
- 6
- Pages
- 484-490
- ISSN
- 0014-2972 (ISSN-L)
- 1365-2362
- OpenAlex
- W2054796275
- Cited by
- 403
- References
- 0
- FWCI
- 9.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- MAXWELL, S. R. J., THOMASON, H., SANDLER, D., LEGUEN, C., BAXTER, M. A., THORPE, G. H. G., JONES, A. F., & BARNETT, A. H. (1997). Antioxidant status in patients with uncomplicated insulin‐dependent and non‐insulin‐dependent diabetes mellitus. European Journal of Clinical Investigation. https://doi.org/10.1046/j.1365-2362.1997.1390687.x
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