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Severe retinopathy ...
Severe retinopathy in type 1 diabetic patients is not related to the level of plasma homocysteine
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- Agardh, Elisabet (författare)
- Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine
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- Hultberg, Björn (författare)
- Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine
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- Agardh, Carl-David (författare)
- Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine
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(creator_code:org_t)
- 2009-07-08
- 2000
- Engelska.
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Ingår i: Scandinavian Journal of Clinical & Laboratory Investigation. - : Informa UK Limited. - 1502-7686 .- 0036-5513. ; 60:3, s. 169-174
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Abstract
Ämnesord
Stäng
- The vascular-injuring amino acid homocysteine was previously shown to be increased in plasma in type 1 diabetic patients with clinical signs of nephropathy. Previous studies have also shown an inconsistent relationship between the development of diabetic nephropathy and retinopathy, indicating different pathogenetic mechanisms. In this study, plasma homocysteine was measured in 25 type 1 diabetic patients with a well-characterized form of severe retinopathy. Furthermore, a group of 24 type 1 diabetic patients with similar age at onset of diabetes and diabetes duration with no or minimal background retinopathy were investigated, in order to determine whether plasma homocysteine levels are different from those in patients with severe retinopathy. Patients with severe retinopathy did not have higher plasma levels of homocysteine (13.9 micromol/L; 5.9-30.7, median and range) than those without retinopathy (10.4 micromol/L; 5.7-18.9). Within the group of patients with severe retinopathy, increased homocysteine levels were confined to the patients (19.9 micromol/L; 10.0-30.7, n=9) with serum creatinine levels > 100 micromol/L, compared to those patients (9.6; 5.9-14.3 micromol/L, n=15) with a serum creatinine below 100 micromol/L. None of the patients without or with minimal background retinopathy had serum creatinine levels > 100 micromol/L. We conclude that diabetic retinopathy is not associated with increased plasma homocysteine levels, but plasma homocysteine accumulates, probably owing to reduced glomerular filtration, in diabetic patients with signs of nephropathy. In these patients, the promoting effect of nephropathy on the development of retinopathy does not seem to be mediated through homocysteine.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Endokrinologi och diabetes (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Endocrinology and Diabetes (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medicinal Chemistry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
Nyckelord
- Diabetes mellitus
- homocysteine
- nephropathy
- retinopathy
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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