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Cirugía Española (English Edition) The effect of Roux-en-Y gastric bypass on uric acid levels: a meta-analysis
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The effect of Roux-en-Y gastric bypass on uric acid levels: a meta-analysis

El efecto del bypass gástrico Roux-en-Y sobre los niveles de ácido úrico: metanálisis
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Tannaz Jamialahamdia, Elaheh Mirhadib, Željko Reinerc, Wael Almahmeedd, Saheem Ahmade, Bodor Bin Sheehaf, Safia Obaidur Rabg,h, Khalid Al-Rasadii, Sepideh Salehabadij, Amirhossein Sahebkarj,k,l,
Corresponding author
a Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
b School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
c Department of Internal Diseases, University Hospital Center Zagreb, Zagreb, Croatia
d Heart and Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
e Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Hail- 2440, Saudi Arabia
f Department of Rehabilitation Sciences, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
g Central Labs, King Khalid University, AlQura'a, Abha, P.O. Box 960, Saudi Arabia
h Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
i Medical Research Centre, Sultan Qaboos University, Muscat, Oman
j Applied Biomedical Research Center, Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
k Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
l Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Abstract
Objective

Obesity is an important, modifiable, independent risk factor for elevated serum uric acid (SUA) levels. A number of studies have shown that weight loss can lead to a decrease in SUA concentrations. However, the existing evidence regarding the effect of a particular type of bariatric surgery (Roux-en-Y gastric bypass, RYGB) on SUA levels is limited and not fully understood. Therefore, the aim of this meta-analysis was to evaluate the effect of RYGB on circulating uric acid levels.

Methods

A comprehensive search was conducted across databases including Embase, PubMed, Web of Science, and Scopus. The overall effect size was assessed through a random-effects meta-analysis and by employing a leave-one-out analytical method.

Results

The random-effects meta-analysis of 18 trials including 1312 individuals confirmed a significant reduction in uric acid following RYGB (WMD: −1.090 mg/dL, 95% CI: −1.429, −0.752, P < .001). In sub-analyses analyzing the duration of follow up, there was a significant reduction in uric acid after ≥12 months (WMD: −1.168, 95% CI: −1.663, −0.673, P < .001), and <12 months (WMD: −0.941, 95% CI: −1.379, −0.503, P < .001). There was no significant change in circulating uric acid concentrations based on the duration of follow-up.

Conclusion

The RYGB type of bariatric surgery significantly decreases SUA levels. This result was not related to the length of follow-up period following bariatric surgery.

Keywords:
Obesity
Bariatric surgery
Roux-en-Y gastric bypass
Uric acid
Resumen
Objetivo

La obesidad es un importante factor de riesgo modificable e independiente para los niveles elevados de ácido úrico sérico (AUS). Diversos estudios han demostrado que la pérdida de peso puede conducir a una disminución de las concentraciones de AUS. Sin embargo, la evidencia existente sobre el efecto de un tipo particular de cirugía bariátrica, el bypass gástrico en Y de Roux (BGYR), sobre los niveles de AUS es limitada y no se comprende completamente. Por lo tanto, el objetivo de este metanálisis fue evaluar el efecto del BGYR sobre los niveles de ácido úrico circulante.

Pacientes y métodos

Se realizó una búsqueda exhaustiva en bases de datos como Embase, PubMed, Web of Science y Scopus. La magnitud del efecto global se evaluó mediante un metanálisis de efectos aleatorios y empleando un método analítico de exclusión de uno.

Resultados

Un metanálisis de efectos aleatorios de 18 ensayos clínicos con 1312 participantes confirmó una reducción significativa del ácido úrico tras el BGYR (DMP: −1,090 mg/dl; IC del 95 %: −1,429; −0,752; p < 0,001). En subanálisis que analizaron la duración del seguimiento, se observó una reducción significativa del ácido úrico a los ≥12 meses (DMP: −1,168; IC del 95 %: −1,663; −0,673; p < 0,001) y a los <12 meses (DMP: −0,941; IC del 95 %: −1,379; −0,503; p < 0,001). No se observaron cambios significativos en las concentraciones circulantes de ácido úrico en función de la duración del seguimiento.

Conclusión

El tipo de cirugía bariátrica con BGYR reduce significativamente los niveles de ácido úrico úrico (AUS). Este resultado no estuvo relacionado con la duración del período de seguimiento después de la cirugía bariátrica.

Palabras clave:
Obesidad
Cirugía bariátrica
Bypass gástrico Roux-en-Y
Ácido úrico
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