Impact of tozinameran (BNT162b2) mRNA vaccine on kidney transplant and chronic dialysis patients: 3–5 months follow-up

Once recombinant human erythropoietin (r-HuEPO) was introduced in daily practice, huge steps were made in combating the adverse effects induced by anemia in chronic kidney disease population. Still, r-HuEPO resistance and the doses ensuring the maximum therapeutic benefit remain matters of debate. The aim of our study was to assess the correlation between the presence and the degree of inflammation and the r-HuEPO requirements in chronic dialysis patients. We conducted a 2 years prospective study on 146 patients undergoing chronic dialysis treated with r-HuEPO. Based on their average CRP (C-reactive protein) levels, obtained from repeated samplings at 3 months interval, 3 groups were formed; we noted in each group the average values of r-HuEPO prescribed to achieve the optimum hemoglobin levels according to the dialysis best practice guidelines and all the adverse effects of the therapy. A direct correlation was observed between CRP levels and r-HuEPO requirements in the first 2 groups of patients (CRP under 6 mg/L and CRP values 6-20 mg/L), with significant increase in r-HuEPO doses between groups (p [ 0.001); the third group, CRP values over 20 mg/dL, showed a minor, insignificant increase in average r-HuEPO doses compared to mild inflammation group (p = 0.199) and more adverse effects of the therapy (p [ 0.05). Inflammation is an important determinant of anemia in chronic dialysis patients and can induce an increase in the doses of r-HuEPO. However, prescribing excessive r-HuEPO doses is not the answer in severe inflammatory status, due to lack of response and possible adverse effects.

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SP400EFFECT OF CHOLECALCIFEROL SUPPLEMENTATION ON TLR7, TLR9, IL-6 AND IFN-Y EXPRESSION IN B AND T LYMPHOCYTES ON CHRONIC DIALYSIS PATIENTS

Nephrology Dialysis Transplantation ◽

10.1093/ndt/gfv193.08 ◽

2015 ◽

Vol 30 (suppl_3) ◽

pp. iii511-iii511

Author(s):

Jose Tarcisio Giffoni de Carvalho ◽

Marion Schneider ◽

Lilian Cuppari ◽

Caren Cristina Grabulosa ◽

Silvia Regina Manfredi ◽

...

Keyword(s):

T Lymphocytes ◽

Chronic Dialysis ◽

Dialysis Patients ◽

Cholecalciferol Supplementation ◽

B And T Lymphocytes

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POS-543 EXPERIENCE OF COVID 19 DISEASE ON 159 ECUADORIAN CHRONIC DIALYSIS PATIENTS

Kidney International Reports ◽

10.1016/j.ekir.2021.03.571 ◽

2021 ◽

Vol 6 (4) ◽

pp. S237

Author(s):

J. SANTACRUZ ◽

C. Santacruz Tipanta ◽

A. Vasquez Pérez ◽

P. Reinoso ◽

S. Carlotta ◽

...

Keyword(s):

Chronic Dialysis ◽

Dialysis Patients

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Urinary Carnosinase-1 Excretion is Associated with Urinary Carnosine Depletion and Risk of Graft Failure in Kidney Transplant Recipients: Results of the TransplantLines Cohort Study

Antioxidants ◽

10.3390/antiox10071102 ◽

2021 ◽

Vol 10 (7) ◽

pp. 1102

Author(s):

Angelica Rodriguez-Niño ◽

Diego O. Pastene ◽

Adrian Post ◽

M. Yusof Said ◽

Antonio W. Gomes-Neto ◽

...

Keyword(s):

Kidney Transplant ◽

Graft Failure ◽

Cox Regression ◽

Carbonyl Stress ◽

Transplant Recipients ◽

Kidney Transplant Recipients ◽

Increased Risk ◽

High Concentrations ◽

Kidney Function Decline

Carnosine affords protection against oxidative and carbonyl stress, yet high concentrations of the carnosinase-1 enzyme may limit this. We recently reported that high urinary carnosinase-1 is associated with kidney function decline and albuminuria in patients with chronic kidney disease. We prospectively investigated whether urinary carnosinase-1 is associated with a high risk for development of late graft failure in kidney transplant recipients (KTRs). Carnosine and carnosinase-1 were measured in 24 h urine in a longitudinal cohort of 703 stable KTRs and 257 healthy controls. Cox regression was used to analyze the prospective data. Urinary carnosine excretions were significantly decreased in KTRs (26.5 [IQR 21.4–33.3] µmol/24 h versus 34.8 [IQR 25.6–46.8] µmol/24 h; p < 0.001). In KTRs, high urinary carnosinase-1 concentrations were associated with increased risk of undetectable urinary carnosine (OR 1.24, 95%CI [1.06–1.45]; p = 0.007). During median follow-up for 5.3 [4.5–6.0] years, 84 (12%) KTRs developed graft failure. In Cox regression analyses, high urinary carnosinase-1 excretions were associated with increased risk of graft failure (HR 1.73, 95%CI [1.44–2.08]; p < 0.001) independent of potential confounders. Since urinary carnosine is depleted and urinary carnosinase-1 imparts a higher risk for graft failure in KTRs, future studies determining the potential of carnosine supplementation in these patients are warranted.

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Introduction of the Grayscale Median for Ultrasound Tissue Characterization of the Transplanted Kidney

Diagnostics ◽

10.3390/diagnostics11030390 ◽

2021 ◽

Vol 11 (3) ◽

pp. 390

Author(s):

Camilo G. Sotomayor ◽

Stan Benjamens ◽

Hildebrand Dijkstra ◽

Derya Yakar ◽

Cyril Moers ◽

...

Keyword(s):

Kidney Transplant ◽

Tissue Characterization ◽

Kidney Transplant Recipients ◽

Systematic Assessment ◽

Ultrasound Tissue Characterization ◽

Adult Kidney ◽

Mersenne Twister ◽

History Of

Ultrasound examination is advised for early post-kidney transplant assessment. Grayscale median (GSM) quantification is novel in the kidney transplant field, with no systematic assessment previously reported. In this prospective cohort study, we measured the post-operative GSM in a large cohort of adult kidney transplant recipients (KTR) who consecutively underwent Doppler ultrasound directly after transplantation (within 24 h), compared it with GSM in nontransplanted patients, and investigated its association with baseline and follow-up characteristics. B-mode images were used to calculate the GSM in KTR and compared with GSM data in nontransplanted patients, as simulated from summary statistics of the literature using a Mersenne twister algorithm. The association of GSM with baseline and 1-year follow-up characteristics were studied by means of linear regression analyses. In 282 KTR (54 ± 15 years old, 60% male), the median (IQR) GSM was 55 (45–69), ranging from 22 to 124 (coefficient of variation = 7.4%), without differences by type of donation (p = 0.28). GSM in KTR was significantly higher than in nontransplanted patients (p < 0.001), and associated with systolic blood pressure, history of cardiovascular disease, and donor age (std. β = 0.12, −0.20, and 0.13, respectively; p < 0.05 for all). Higher early post-kidney transplant GSM was not associated with 1-year post-kidney transplant function parameters (e.g., measured and estimated glomerular filtration rate). The data provided in this study could be used as first step for further research on the application of early postoperative ultrasound in KTR.

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