Potential of Birds to Serve as Pathology-Free Models of Type 2 Diabetes, Part 2: Do High Levels of Carbonyl-Scavenging Amino Acids (e.g., Taurine) and Low Concentrations of Methylglyoxal Limit the Production of Advanced Glycation End-Products?

2014 ◽  
Vol 17 (4) ◽  
pp. 347-358 ◽  
Author(s):  
Benjamin S. Szwergold ◽  
Craig B. Miller
Author(s):  
Juliana Christyaningsih ◽  
Taufiqurrahman Taufiqurrahman ◽  
Sujono Sujono

Objectives: Glucose and amino acids or fat in diabetic patients if were oxidized to form a compound amadori product (hemoglobin A1c [HbA1c]) and intermediate dicarbonyl that uses reactive carbonyl groups to bind with the amino acids to form advanced glycation end products (AGEs). Soybean is classified as a low index glycemic and content of polyphenol compounds are reported to have various biological activities, which are beneficial to health. Project objectives: The aim of this study was to determine the effect of extract soybean of local varieties obtained on AGEs and HbA1c.Methods: This study was a randomized pretest-posttest control group design. The amount of 28 Mus musculus Balb/C was divided into seven groups. The control group was divided four, while the test group was given extracts of three varieties of soybean, that is, Gema, Wilis, and Argomulyo at a dose equivalent to 1 g of soy/kg BW/day for 25 days. Type 2 diabetes (T2D) mice made with the administration of STZ at a dose of 55 mg/kg in mice.Results: There is a sign of differences in HbA1c levels in the group of mice, and there are different levels of AGEs, though not statistically significant in the group of mice.Conclusions: The extract soybean was a positive effect on the levels of AGEs and HbA1c in T2D mice.


2004 ◽  
Vol 5 (2) ◽  
pp. 163-169 ◽  
Author(s):  
A. E. Buchs ◽  
A. Kornberg ◽  
M. Zahavi ◽  
D. Aharoni ◽  
C. Zarfati ◽  
...  

The aim of the study was to determine the correlation between the expression of tissue factor (TF) and the receptor for advanced glycation end products (RAGEs) and vascular complications in patients with longstanding uncontrolled type 2 diabetes (T2D). TF and RAGE mRNAs as well as TF antigen and activity were investigated in 21 T2D patients with and without vascular complications. mRNA expression was assessed by reverse transcriptase–polymerase chain reaction (RT-PCR) in nonstimulated and advanced glycation end product (AGE) albumin–stimulated peripheral blood mononuclear cells (PBMCs). TF antigen expression was determined by enzyme-linked immunosorbent assay (ELISA) and TF activity by a modified prothrombin time assay. Basal RAGE mRNA expression was 0.2 ± 0.06 in patients with complications and 0.05 ± 0.06 patients without complications (P= .004). Stimulation did not cause any further increase in either group. TF mRNA was 0.58 ± 0.29 in patients with complications and 0.21 ± 0.18 in patients without complications (P= .003). Stimulation resulted in a nonsignificant increase in both groups. Basal TF activity (U/106PBMCs) was 18.4 ± 13.2 in patients with complications and 6.96 ± 5.2 in patients without complications (P= .003). It increased 3-fold in both groups after stimulation (P= .001). TF antigen (pg/106PBMCs) was 33.7 ± 28.6 in patients with complications, 10.4 ± 7.8 in patients without complications (P= .02). Stimulation tripled TF antigen in both groups of patients (P= .001). The RAGE/TF axis is up-regulated inT2Dpatients with vascular complications as compared to patients without complications. This suggests a role for this axis in the pathogenesis of vascular complications in T2D.


Sign in / Sign up

Export Citation Format

Share Document