Vitamin D levels reverberate in monocytes modulation in hemodialysis patients

Journal of Cellular Physiology
A C S F AlmeidaF C Barreto

Abstract

Patients with chronic kidney disease (CKD) have a severe vitamin D deficiency and increasing epidemiological data suggesting that this deficiency may play a role in overall morbidity and mortality associated with CKD. It is known that vitamin D regulates the immune system, however, in dialysis patients this deficiency and the modulation of proinflammatory cells is unclear. Among these, monocytes arouse interest considering they constitutively express vitamin D receptors. This study aimed the evaluation of monocytic profile in CKD patients according to vitamin D levels. Patients in hemodialysis (HD) were divided into two groups, regarding vitamin D levels: Group 1, vitamin D <26 ng/ml (n = 15) and Group 2, vitamin D ≥26 ng/ml (n = 18). Whole blood was collected aiming evaluation of (a) monocytic populations through CD14 and CD16 expression, (b) reactive oxygen species (ROS) generation, and (c) apoptosis. We observed that in Group 1, when compared to Group 2, there was a significant increase in intermediate monocytes (CD14++ CD16 + ; 34.7 ± 31.6 vs. 12.1 ± 6.3; p = 0.006, respectively) and decrease in classical ones (CD14 ++ CD16 - ; 45.3 ± 31.8 vs. 70.4 ± 25.1; p = 0.017, respectively). There was no difference between groups reg...Continue Reading

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Citations

Dec 2, 2020·Jornal brasileiro de nefrologia : ʹorgão oficial de Sociedades Brasileira e Latino-Americana de Nefrologia·Fellype Carvalho Barreto, Andréa Emilia Marques Stinghen

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