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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Zhu, Huan-gao Jiang, Zhao-shun Gong, Pi-yun Zhang, Dong-mei Zou, Zhi-wei Qian-Zhang Ma, Hui-mei Guo, Zhen-gang Zhao, Jun-yu Dong, Jian-jun Lin-Liao |
| Abstract | Background A low-protein diet (LPD) is believed to be beneficial in slowing the progression of kidney disease. It is reported that low protein diet can improve protein, sugar and lipid metabolism, and reduce the symptoms and complications of renal insufficiency. However, there has been controversial regarding the effects of protein restriction on diabetic nephropathy (DN). Objective To investigate the efficacy of LPD on renal function in patients with type 1 or 2 DN by meta-analysis of randomized controlled trials (RCTs). Design PubMed, MEDLINE, EMBASE and China National Knowledge Infrastructure databases were searched. Eleven randomized controlled trials met the inclusion criteria, of which 10 were English and 1 was Chinese. The primary outcome was a change in glomerular filtration rate (GFR). The secondary outcome was a change in proteinuria. Random-effects models were used to calculate the standardized mean difference (SMD) and the corresponding 95% confidence intervals (CI). Subgroup analyses were also performed. Results Our research indicated that LPD was not associated with a significant improvement in GFR (1.59 ml · min−1 · 1.73 m−2, 95% CI -0.57, 3.75, I2 = 76%; p = 0.15). This effect was consistent across the subgroups regardless of type of diabetes, course of diabetes and intervention period. Our results also showed that there was no significant difference on improvement of proteinuria in patients of LPD and those in normal-protein diet groups (− 0.48, 95%CI-1.70, 0.74, I2 = 94%, p = 0.44). Subgroup analysis revealed that LPD resulted in increased excretion of proteinuria in patients with type 2 diabetes (1.32, 95% CI 0.17, 2.47, I2 = 86%, p = 0.02). Conclusion The present research showed that LPD was not significantly associated with improvement of renal function in patients with either type 1 or 2 diabetic nephropathy. Although these results do not completely eliminate the possibility that LPD is beneficial for patients with diabetic nephropathy, it does not seem to be significant benefit to renal function. |
| Related Links | https://lipidworld.biomedcentral.com/counter/pdf/10.1186/s12944-018-0791-8.pdf |
| Ending Page | 9 |
| Page Count | 9 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1186/s12944-018-0791-8 |
| Journal | Lipids in Health and Disease |
| Issue Number | 1 |
| Volume Number | 17 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2018-06-19 |
| Access Restriction | Open |
| Subject Keyword | Lipidology Medical Biochemistry Clinical Nutrition Diabetic nephropathy Protein restriction Low-protein diet |
| Content Type | Text |
| Resource Type | Article |
| Subject | Endocrinology Clinical Biochemistry Endocrinology, Diabetes and Metabolism Biochemistry (medical) |
| Journal Impact Factor | 3.9/2023 |
| 5-Year Journal Impact Factor | 4.3/2023 |
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