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J Ren Nutr. 2008 Sep;18(5):440-7. doi: 10.1053/j.jrn.2008.04.010.

Long-term effect of a chicken-based diet versus enalapril on albuminuria in type 2 diabetic patients with microalbuminuria.

Author information

1
Division of Endocrinology, Hospital de ClĂ­nicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.

Abstract

OBJECTIVE:

In short-term studies, the replacement of red meat in the diet with chicken reduced the urinary albumin excretion rate (UAER) and improved lipid profile in type 2 diabetic patients with diabetic nephropathy. The present study sought to assess these effects over a long-term period, comparing the effects of a chicken-based diet (CD) versus enalapril on renal function and lipid profile in microalbuminuric type 2 diabetic patients.

DESIGN:

This was a randomized, open-label, controlled clinical trial with a follow-up of 1 year.

SETTING:

The trial involved outpatients with type 2 diabetes attending a clinic of the Division of Endocrinology at a tertiary-care hospital.

PATIENTS:

Twenty-eight microalbuminuric patients completed the study and were evaluated.

INTERVENTIONS:

Patients were randomized to an experimental diet (CD plus active placebo) or to treatment with enalapril (10 mg/day plus usual diet).

MAIN OUTCOME MEASURES:

The main outcome measure was UAER (according to immunoturbidimetry). Blood pressure, anthropometric indices, and compliance were also evaluated monthly. The glomerular filtration rate ((51)Cr-EDTA), and lipid, glycemic, and nutritional indices, were measured at baseline and quarterly.

RESULTS:

The UAER was reduced after CD (n = 13; from 62.8 [range, 38.4 to 125.1] to 49.1 [range, 6.2 to 146.5] microg/min; P < .001) and after enalapril (n = 15; from 55.8 [range, 22.6 to 194.3] to 23.1 [range, 4.0 to 104.9] microg/min; P < .001), and this was already significant at month 4. The reduction in UAER after CD (32%; 95% confidence interval, 6.7% to 57.6%) and after enalapril treatment (44.7%; 95% confidence interval, 28.3% to 61.1%; P = .366) were not significantly different.

CONCLUSIONS:

The CD and the angiotensin-converting enzyme inhibitor enalapril promoted a similar reduction of UAER in patients with type 2 diabetes and microalbuminuria in a 12-month follow-up period.

PMID:
18721739
DOI:
10.1053/j.jrn.2008.04.010
[Indexed for MEDLINE]

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