DOI 10.5414/CN107279

Clinical Nephrology, Volume 78 (2012) - August (122 - 128)

Long term effects of low protein diet on depressive symptoms and quality of life in elderly Type 2 diabetic patients

Tiziana Ciarambino1, Pietro Castellino2, Giuseppe Paolisso1, Ludovico Coppola1, Nicola Ferrara3, Giuseppe Signoriello1, Mauro Giordano1
1 Department of Gerontology, Geriatrics, Metabolic Diseases, Second University of Naples, Naples, 2 Department of Internal Medicine, University of Catania, Catania, 3 S. Maugeri Foundation, Bioengeneering Department of Rehabilitation Institute of Telese, Italy

Abstract

Objectives: The long term effects of a low protein diet (LPD) on depressive symptoms and the quality of life in elderly Type 2 diabetic are unclear. Methods: 38 elderly Type 2 diabetic patients with CRD (Stage 3 – 4) were enrolled in the study. After 4 weeks on a normal protein diet regimen (NPD) providing 1.0 g/kg per day, all participants were assigned for 30 months, randomly, to a LPD (0.7 g/kg per day), either 7 days a week (LPD 7/7) or 6 days a week (LPD 6/7). Mini mental state examination (MMSE), activities daily living (ADL), cumulative illness severity (CIRS-IS), geriatric depression scale (GDS-15) and short-form healthy survey (SF- 36) were evaluated every 3 months. Results: Before the LPD regimen creatinine clearance (CrCl), MMSE, ADL, CIRS-IS, GDS-15 and SF-36 were similar in both LPD 7/7 and LPD 6/7 groups. After 30 months, the mean GDS- 15 increased significantly more in LPD 7/7 group than in LPD 6/7 group (p < 0.05). Both mean SF-36 MCS and SF-36 PCS were decreased significantly more in LPD 7/7 group than in LPD 6/7 group (p < 0.05). After 30 months, the decline in CrCl observed was similar in LPD 7/7 and LPD 6/7 groups (2.77 ± 0.3 and 2.84 ± 0.3 ml/min/year, respectively). Conclusion: In elderly Type 2 diabetic patients, long term effects of LPD 6/7 regimen in comparison to LPD 7/7 are associated with a similar decline in CrCl, but with decreased depressive symptoms and a better quality of life.

Author Details

Authors

  • Tiziana Ciarambino1
  • Pietro Castellino2
  • Giuseppe Paolisso1
  • Ludovico Coppola1
  • Nicola Ferrara3
  • Giuseppe Signoriello1
  • Mauro Giordano1

Departments

  • 1 Department of Gerontology, Geriatrics, Metabolic Diseases, Second University of Naples, Naples,
  • 2 Department of Internal Medicine, University of Catania, Catania,
  • 3 S. Maugeri Foundation, Bioengeneering Department of Rehabilitation Institute of Telese, Italy

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