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Abstract
Hyperuricemia is associated with insulin resistance, pancreatic β-cell dysfunction and consequently with development of type 2 diabetes. Although a direct relationship between high levels of uric acid (UA) and the development of diabetes is still a controversial issue, there is some evidence that strongly points to pancreatic β-cells damage as a result of high serum UA levels. Here, the mechanisms underlying UA-induced β-cell damage are discussed. Available literature indicates that UA can decrease glucose-stimulated insulin secretion and cause β-cell death. The mechanisms underlying these effects are UA-induced oxidative stress and inflammation within the β-cells. UA also stimulates inducible nitric oxide (NO) synthase (iNOS) gene expression leading to NO-induced β-cell dysfunction. Thus hyperuricemia may potentially cause β-cell dysfunction, leading to diabetes. It may be hypothesized that in hyperuricemic subjects, UA-lowering drugs may be beneficial in preventing diabetes.
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Affiliation(s)
- Asghar Ghasemi
- Endocrine Physiology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, P.O. Box: 19395-4763, No. 24, Parvaneh Street, Velenjak, Tehran, Iran.
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Robles-Cervantes JA, Ramos-Zavala MG, González-Ortiz M, Martínez-Abundis E, Valencia-Sandoval C, Torres-Chávez A, Espinel-Bermúdez C, Santiago-Hernández NJ, Hernández-González SO. Relationship between Serum Concentration of Uric Acid and Insulin Secretion among Adults with Type 2 Diabetes Mellitus. Int J Endocrinol 2011; 2011:107904. [PMID: 22216028 PMCID: PMC3246727 DOI: 10.1155/2011/107904] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Revised: 11/01/2011] [Accepted: 11/03/2011] [Indexed: 11/23/2022] Open
Abstract
To determine the relationship between serum concentrations of uric acid and insulin secretion with hyperglycaemic clamp technique among adults with type 2 diabetes mellitus (DM2) without hyperuricemia, we carried out a cross-sectional study on 45 patients of both gender. We observed correlation between uric acid with male gender r = 0.710 (P = 0.001). Also correlation between uric acid and total insulin secretion was positive r = 0.295 (P = 0.049). As well as a positive correlation adjusted for body mass index was demonstrated for the first, second, and total phases of insulin secretion, respectively, r = 0.438 (P = 0.022), r = 0.433 (P = 0.022), and r = 0.439 (P = 0.024). Serum concentration of uric acid showed a positive relationship with the total phase of insulin secretion; even in states prior to hyperuricemia, uric acid can play an important role in the function of the beta cell in patients with DM2.
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Affiliation(s)
- J. A. Robles-Cervantes
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
- *J. A. Robles-Cervantes:
| | - M. G. Ramos-Zavala
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
| | - M. González-Ortiz
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
| | - E. Martínez-Abundis
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
| | - C. Valencia-Sandoval
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
| | - A. Torres-Chávez
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
| | - C. Espinel-Bermúdez
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
| | - N. J. Santiago-Hernández
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
| | - S. O. Hernández-González
- Medical Research Unit in Clinical Epidemiology, Specialties Hospital, Medical Unit of High Specialty, West National Medical Center, Mexican Institute of Social Security, Avenida Chapalita, 1300 Col. Chapalita, Guadalajara, JAL 45000, Mexico
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