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Higher urinary IgM ...
Higher urinary IgM excretion in type 2 diabetic nephropathy compared to type 1 diabetic nephropathy.
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- Bakoush, Omran (författare)
- Lund University,Lunds universitet,Njurmedicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nephrology,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Tencer, Jan (författare)
- Lund University,Lunds universitet,Njurmedicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nephrology,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Tapia, Juan (författare)
- Lund University,Lunds universitet,Njurmedicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nephrology,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Rippe, Bengt (författare)
- Lund University,Lunds universitet,Njurmedicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nephrology,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Torffvit, Ole (författare)
- Lund University,Lunds universitet,Medicin, Lund,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Njurmedicin,Institutionen för kliniska vetenskaper, Lund,Medicine, Lund,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine,Nephrology,Department of Clinical Sciences, Lund
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(creator_code:org_t)
- Elsevier BV, 2002
- 2002
- Engelska.
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Ingår i: Kidney International. - : Elsevier BV. - 1523-1755 .- 0085-2538. ; 61:1, s. 203-208
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Abstract
Ämnesord
Stäng
- BACKGROUND: Proteinuria, due to impairment of the charge- and/or size selectivity of the glomerular capillary wall (GCW) is the earliest clinical evidence of diabetic nephropathy (DN). To study the pathophysiological differences between patients with DN in type 1 diabetes mellitus (type 1 DN) and type 2 diabetes mellitus (type 2 DN), we compared the patterns of urinary proteins of different size and charge in the two entities of diabetic kidney disease. METHODS: Urine concentrations of albumin, IgG2, IgG4 and IgM were assessed in 22 (15 males and 7 females) patients with type 1 DN, and in 20 (18 males and 2 females) patients with type 2 DN. Comparisons with one control group of 13 (12 males and one female) patients with nephrosclerosis due to systemic hypertension and a second control group of 16 (14 males and 2 females) healthy controls were made. RESULTS: The urine excretion of IgG2 and IgM and the ratio of IgG2 to IgG4 (IgG2/IgG4), were significantly higher in type 2 DN compared to type 1 DN (P < 0.01). Patients with type 2 DN and patients with nephrosclerosis had significantly higher urine excretion of IgG and IgM compared to the age-matched healthy subjects (P < 0.001). The IgG2/IgG4 ratio was higher in type 2 DN compared to nephrosclerosis and healthy controls (P < 0.01). CONCLUSION: The increased urine excretion of IgG and IgM that accompanies albuminuria in type 2 DN suggests that the dominant pathophysiological mechanism of proteinuria in type 2 DN might be an alteration of the size selective properties of the glomerular capillary wall, including the occurrence of non-discriminatory "shunt pathways." The charge selective properties of the glomerular capillary wall seem to be intact in type 2 DN, as indicated by the high IgG2/IgG4 ratio. The mechanisms of proteinuria in type 1 DN seem to be merely a consequence of an impaired charge selectivity of the glomerular capillary wall.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Urology and Nephrology (hsv//eng)
Nyckelord
- Diabetes Mellitus Non-Insulin-Dependent : immunology : urine
- Adult
- Comparative Study
- Diabetes Mellitus Insulin-Dependent : immunology : urine
- Immunoglobulin G : urine
- Human
- Female
- Diabetic Nephropathies : immunology : urine
- Male
- Immunoglobulin M : urine
- Support Non-U.S. Gov't
- Middle Age
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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