Cytokine Gene Polymorphism Profiles in Kidney Transplant Patients - Association of +1188A/C RS3212227 SNP in the IL12B Gene Prevents Delayed Graft Function

Abstract Background and Aims Post-transplant weight gain and particularly visceral fat gain has been linked to the development of metabolic disorders and cardiovascular disease. Moreover, the effect of obesity on graft function after kidney transplantation has recently become a subject of interest. The aim of our study was to investigate the association of body mass index (BMI), body fat percentage (BF%) and waist-to-hip ratio (WHR) with the kidney function in kidney transplant patients. Method We conducted a cross-sectional study that enrolled 80 kidney transplant patients aged 23–75 years (mean age 46.7 ± 11.5 years, 60% males). Anthropometric measurements of weight, height, waist, and hip circumferences in addition to skinfold thickness were obtained. BH% was calculated using a 4-site skinfold thickness method calculated through the Jackson-Pollock equation with a Harpenden caliper, utilizing a BF% cutoff of 35% for women and 25% for men to define obesity. Results The calculated BMI in our study group was 32.7±8.7 kg/m2, a mean BF% of 29.9±8.5% and a mean WHR of 0.9±0.1 Statistically significant difference in GFR, BMI, WHR and BF% were observed between males and females (r=0.455, p=0.02; r=0.412, p=0.016; r=0.437, p=0.022; r=0.348, p=0.011), respectively. After adjustment for age, gender, donor group, donor age and years of dialysis before transplantation, higher levels of all obesity measures were related to lower eGFR: BMI per 1 SD (β coefficient −3.883, 95% confidence interval [CI] −5,422 to −3,132), WHR (β coefficient −4.443, 95% CI −6.201 to −3.772), and BF% (β coefficient −3.722, 95% CI −4.332 to −3.461). The combination of higher BF% (BF% >33 kg/m2) and central obesity (WHR >0.85 for women, >0.90 for men) was associated with the lowest eGFR compared with that in lean subjects. Conclusion The combination of high BF% and WHR may be an important risk factor for lower GFR in a kidney transplant recipient.

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ERYTHROPOIESIS STIMULATING AGENTS HAVE BENEFICIAL EFFECT ON GRAFT FUNCTION IN KIDNEY TRANSPLANT PATIENTS WITH POSTTRANSPLANT ANEMIA.

Transplantation Journal ◽

10.1097/00007890-201007272-01784 ◽

2010 ◽

Vol 90 ◽

pp. 909

Author(s):

N. Ichimaru ◽

T. Moriyama ◽

K. Yazawa ◽

M. Okumi ◽

J. Kaimori ◽

...

Keyword(s):

Beneficial Effect ◽

Kidney Transplant ◽

Graft Function ◽

Erythropoiesis Stimulating Agents ◽

Transplant Patients ◽

Kidney Transplant Patients

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Is delayed graft function associated with ureteral stenosis in the kidney transplant recipient? A case-control study

Canadian Urological Association Journal ◽

10.5489/cuaj.5794 ◽

2019 ◽

Vol 13 (11) ◽

Cited By ~ 1

Author(s):

Axel Cayetano-Alcaraz ◽

Juan Sebastian Rodriguez-Alvarez ◽

Mario Vilatobá-Chapa ◽

Josefina Alberú-Gómez ◽

Bernardo Gabilondo-Pliego ◽

...

Keyword(s):

Risk Factor ◽

Kidney Transplant ◽

Kidney Transplant Recipient ◽

Graft Function ◽

Transplant Recipients ◽

Kidney Transplant Recipients ◽

Transplant Patients ◽

Increased Risk ◽

Kidney Transplant Patients ◽

Control Study

Introduction: Ureteral stricture (US) in the kidney transplant recipient is a rare complication that can lead to morbidity and graft loss. Risk factor recognition is crucial in the prevention and management of this entity. Delayed graft function (DGF), as defined by the need for dialysis in the first week after transplantation, has been proposed as a risk factor in previous studies. Our objective is to determine the impact of DGF in US development in kidney transplant patients. Methods: We designed a matched case-control study. US cases in kidney transplant recipients were identified in the 2008–2017 period. We defined US as the rise in serum creatinine associated with findings suggesting obstruction in ultrasound, scintigraphy, or retrograde pyelogram; any other cause of graft dysfunction was excluded. Controls were defined as kidney transplant recipients from the same population and period without US, matched in a 1:2 fashion by age, sex, and donor type. Results: From 532 kidney transplant patients, 31 cases and 62 controls were included. Cumulative US incidence was 58 per 1000 cases. When calculating for odds ratio (OR), post-operative urinoma (OR 3.2; 95% confidence interval [CI] 2.36–4.37) and ureteral duplication (OR 3.29; 95% CI 2.40–4.51) were associated with an increased risk for US, while DGF was not found to be statistically significant as a risk factor (OR 3.3; 95% CI 0.96–11.52). No statistically significant differences were found between groups in other pre- and post-transplant-related factors. Conclusions: DGF was not associated with US in our cohort; however, ureteral duplication and postoperative urinoma were associated with an increased risk of graft ureteral stenosis development.

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