International Journal of General Medicine (Sep 2022)

The Relationship Between Serum Folate Level and Residual Renal Function in CAPD Patients

  • Yu J,
  • Zhou Q,
  • Xu Y,
  • Wang T,
  • Du J,
  • Zhao L,
  • Li J,
  • Wang H,
  • Xu Q,
  • Lai X,
  • Guo Z

Journal volume & issue
Vol. Volume 15
pp. 6977 – 6984

Abstract

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Jianpeng Yu,1,* Qi Zhou,1,* Ying Xu,1,* Tieyun Wang,1 Jun Du,1 Lifang Zhao,1 Juan Li,1 Haiyan Wang,1 Qianqian Xu,2 Xueli Lai,1 Zhiyong Guo1 1Department of Nephrology, Shanghai Changhai Hospital, Shanghai, People’s Republic of China; 2Department of Rheumatology and Immunology, Shanghai Changhai Hospital, Shanghai, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xueli Lai; Zhiyong Guo, Email [email protected]; [email protected]: To investigate the relationship between serum folate (FA) levels and residual renal function (RRF) in continuous ambulatory peritoneal dialysis (CAPD) patients.Methods: Clinical data were collected from 180 hospitalized patients who received CAPD regularly. Patients were divided into the FA deficiency group and the FA non-deficiency group according to serum FA level. Data on age, sex, PD vintage, hemoglobin, mean corpuscular volume, serum FA, total Kt/V, residual kidney Kt/V, peritoneum Kt/V, creatinine clearance (Ccr), ultrafiltration volume, cystatin C (cytC), serum creatinine (Scr), urea nitrogen, retinol-binding protein and the primary disease were gathered from 2 groups. Statistical methods were used to analyze the relationship between serum FA level and RRF.Results: Peritoneal Kt/V, cytC, Scr were higher, and residual kidney Kt/V was lower in FA deficiency group than in non-deficiency group. Univariate correlation showed the peritoneal Kt/V, cytC, Scr negatively correlated with serum FA while residual kidney Kt/V positively correlated with serum FA, and there was a simple linear regression relationship between serum FA and residual kidney Kt/V. Differences were statistically significant (P< 0.05).Conclusion: There is a relationship between serum FA and RRF in CAPD patients. Prospective studies or trials should be performed to clarify the importance of FA supplementation on RRF during peritoneal dialysis.Keywords: folate, continuous ambulatory peritoneal dialysis, residual renal function

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