Serum uric acid level and its association with cardiometabolic risk factors in prediabetic subjects

BACKGROUND

Excess serum uric acid (UA) accumulation can lead to various diseases. Increasing evidences reveal that UA may have a key role in the pathogenesis of metabolic syndrome. Little is known about the associations of UA levels with cardiometabolic risk factors in prediabetic individuals. This study was designed to evaluate the association between UA and cardiometabolic risk factors in prediabetic subjects with family history of diabetes compared with those with normal glucose tolerance (NGT).

MATERIALS AND METHODS

In a cross-sectional setting, a sample containing 643 (302 prediabetic subjects and 341 normal) of the first-degree relatives of diabetic patients aged 35-55-years old were investigated. Samples were assessed in prediabetic and normal groups using glucose tolerance categories. Prediabetes was defined based on American Diabetes Association (ADA) criteria. Body weight and height, systolic and diastolic blood pressure (SBP and DBP), UA, creatinine (Cr), albumin (Alb), fasting blood glucose (FBG), hemoglobin A1c (HbA1c), and lipid profiles were measured and compared between two groups.

RESULTS

Prediabetic persons were older and obese than normal persons. Also, prediabetic persons (5.2 ± 1.3 mg/dl) had significantly higher UA than normal persons (4.9 ± 1.4 mg/dl) (P < 0.05). FBG after 0, 30, 60, and 120 min in prediabetic were higher than normal persons (P < 0.001). With respect to metabolic parameters, the patients in the higher UA quartiles exhibited higher levels of body mass index (BMI), SBP, FBG and triglycerides (TG). The higher quartiles of UA tended to be associated with higher BMI and higher total cholesterol (TC) in females prediabetic persons. Based on logistic regression analysis in different models, UA was positively (odds ratio (OR) >1, P < 0.05) associated with glucose tolerance categories. This association remained statistically significant after adjusting the effects of age and BMI. Also, the association between glucose tolerance categories and UA were positively significant in both genders.

CONCLUSION

High UA level was associated with some cardiometabolic risk factors in prediabetic individuals compared with normal person. UA level was also a significant predictor for prediabetes condition.

Evaluation of the Finnish Diabetes Risk Score (FINDRISC) as a screening tool for the metabolic syndrome

OBJECTIVES

Traditionally, the Finnish Diabetes Risk Score (FINDRISC) questionnaire is a screening tool to estimate risk of type 2 diabetes. In this study, we evaluated the ability of FINDRISC to predict the development of the metabolic syndrome (MetS) in an Iranian population without diabetes and MetS.

METHODS

A total of 1,010 first-degree relatives of consecutive patients with type 2 diabetes, 30-70 years old (274 men and 736 women), without diabetes and MetS, were examined and followed up over 8.0 ± 1.6 years (mean ± SD) for MetS incidence. The incidence of MetS was examined across quartiles of FINDRISC, and a receiver operating characteristic (ROC) curve was plotted to assess the discrimination. At baseline and through follow-ups, participants underwent a standard 75 g 2-hour oral glucose tolerance test (OGTT). Data for determining FINDRISC were available from each participant.

RESULTS

During 8,089 person-years of follow-up, 69 men and 209 women without MetS and diabetes at baseline subsequently developed MetS. The incidence of MetS was 31.4 per 1000 person-years in men and 35.5 in women. The FINDRSC at baseline was significantly associated with MetS evolution. Participants in the top quartile of FINDRISC were 4.4 times more likely to develop MetS than those in the bottom quartile (rate ratio 4.4; 95% CI 2.7-7.0). The area under the ROC curve was 65.0% (95% CI 61.3-68.7).

CONCLUSION

The results of this study suggest that FINDRISC can be applied to detect MetS in a high-risk population.

Executive functions and information processing in patients with type 2 diabetes in comparison to pre-diabetic patients

BACKGROUND

Diabetes is associated with cognitive decline or dementia. The purpose of this study was to assess the executive functions and information processing in patients with type 2diabetes in comparison to pre-diabetic patients and normal subjects in Endocrine and Metabolism Research Center of Isfahan City from April to July 2011.

METHODS

The sample consisted of 32 patients with type 2 diabetes, 28 pre-diabetic patients and 30 healthy individuals. Executive functions were assessed by Wisconsin Card Sorting Test (WCST). Information processing was assessed by Paced Auditory Serial Addition Test (PASAT) and sub tests of Wechsler Adult Intelligence Scale-Revised (WAIS-R).

RESULTS

There was a significant difference among 3 groups, after the variables of age, sex and academic status were controlled (p ≤ 0.001). The pairwise comparisons of executive functions among three groups suggest a significant difference between diabetic and normal groups in WCST (perseveration) p = 0.018, and significant difference between diabetic and pre-diabetic patient in WCST (perseveration) p = 0.019. But there was no difference between three groups in WCST (category) and WCST (conceptual responses). The pairwise comparisons of information processing among three groups, suggest a significant difference between diabetic and normal groups in PASAT3". PASAT2", and Symbol coding (P = 0.003, P = 0.009, and P = 0.001, respectively). There was a significant correlation between demographic variable (FBS, HbA1c) and Symbol coding p = 0.05, p = 0.01 respectively) and significant correlation between (cholesterol) and WCST (conceptual responses) p = 0.05. The other variables were not correlated.

CONCLUSION

There were significant differences in executive function and information processing in patients with type 2 diabetic and normal individuals. Thus, monitoring neuropsychological status besides controlling levels of blood sugar in these patients is important.

Comparison of body mass index with abdominal obesity indicators and waist-to-stature ratio for prediction of type 2 diabetes: The Isfahan diabetes prevention study

SUMMARY

OBJECTIVES

The aim of this study was to compare the ability of the body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR) and waist-to-stature ratio (WSR) to predict progression to diabetes in non-diabetic first-degree relatives (FDRs) of patients with type 2 diabetes.

METHODS

A total of 704 non-diabetics FDRs 20-70 years old in 2003-2005 were followed through 2008 for the occurrence of type 2 diabetes mellitus. At baseline and through follow-ups, participants were underwent a standard 75 g 2-h oral glucose tolerance test. Prediction of progression to type 2 diabetes was assessed with area under the receiver operating characteristic (ROC) curves based upon measurement of BMI, WC, WHR and WSR.

RESULTS

The incidence of type 2 diabetes was 3.3% per year in men and 4.8% in women. BMI, WC and WSR were related to diabetes. These three obesity indicators have similar associations with incident diabetes. Areas under the ROC curves were 0.625 for BMI, 0.620 for WC, 0.611 for WSR and 0.538 for WHR.

CONCLUSIONS

These data indicate that BMI was as strong as WC or WSR in predicting progression to diabetes.

Finnish Diabetes Risk Score to predict type 2 diabetes in the Isfahan diabetes prevention study

AIM

The strong association between the Finnish Diabetes Risk Score (FINDRISC) and risk of diabetes reported in European populations cannot necessarily be generalized to other populations. The aim of this study was to evaluate the ability of FINDRISC to predict progression to diabetes in an Iranian population without diabetes.

METHODS

A total of 1537 first-degree relatives (FDR) without diabetes of consecutive people with type 2 diabetes 30-70 years old (376 men and 1161 women) were examined and followed for a mean (SD) of 7.8 (1.7) years for diabetes incidence. We examined the incidence of diabetes across quartiles of FINDRISC and plotted a receiver operating characteristic (ROC) curve to assess discrimination. At baseline and through follow-up, participants underwent a standard 75-g 2-h oral glucose tolerance test. Data for the FINDRISC were available from each participant.

RESULTS

During 12,046 person-years of follow-up, 41 men and 154 women developed diabetes. The incidence of type 2 diabetes was 14.0 per 1000 person-years in men and 16.9 in women. Those in the top quartile of FINDRISC were 21.7 times more likely to develop diabetes than those in the bottom quartile (relative risk 21.7; 95% CI 9.90, 47.39). The area under the ROC was 75.1% (95% CI 71.3, 78.8).

CONCLUSIONS

The results of this study show that FINDRISC is a robust predictor of type 2 diabetes in high-risk individuals in Iran.

Cognitive processes and functions in patients with type 2 diabetes in comparison to pre-diabetic patients

BACKGROUND

Type 2 diabetes is an important risk factor for cognitive decline in diabetic patients. The main goal of this study was the assessment of memory, attention and visuospatial ability dysfunctions in patients with type 2 diabetes in comparison to pre-diabetic patients and normal subjects in Endocrine and Metabolism Center of Isfahan City from April 2011 to July 2011.

METHODS

The sample comprised of 32 patients with type 2 diabetes, 28 pre-diabetic patients and 30 healthy individuals. Memory, attention and visuospatial ability were assessed by Rey Complex Figure Test (RCFT), Paced Auditory Serial Addition Test (PASAT) and sub tests of Wechsler Adult Intelligence Scale-revised (WAIS-R).

RESULTS

The pair wise comparisons of cognitive functions among three groups, suggesting a significant difference between diabetic and normal groups in PASAT3". PASAT2", RCFT (recall trial) and Symbol coding (P=0.003, P=0.009, P=0.010, and P<0.001, respectively). But there was no difference in copy trial of RCFT and block design between two groups (P=0.170, P=0.490). There was significant difference between pre-diabetic group and normal group in recall trial of RCFT (P=0.020), as well as significant difference between diabetes type 2 and pre-diabetic group in symbol coding (P=0.001).

CONCLUSIONS

There were significant differences in cognitive functions in patient with type2 diabetes, pre-diabetic patients and normal individuals. Thus monitoring neuropsychological status besides controlling levels of blood sugar in these patients is important.

Association between PRO12ALA polymorphism of the PPAR-γ2 gene and type 2 diabetes mellitus in Iranian patients

BACKGROUND:

Peroxisome proliferator-activated receptor (PPARs) have been identified as ligand-activated transcription factors that belong to the nuclear receptor superfamily. It has been shown that an association exists between Proline 12 alanine (Pro12Ala) polymorphism of PPAR-GAMMA2 (PPAR-γ2) gene and increased risk of type 2 diabetes mellitus (T2DM) in different populations. Therefore, the present study was designed to investigate the association between Pro12Ala polymorphism of PPAR-γ2 gene and T2DM in an Iranian population.

MATERIALS AND METHODS:

Two hundred unrelated people, including 100 healthy controls and 100 diabetic patients were recruited diagnosed based on American Diabetes Association criteria. Blood samples were used for isolation of genomic deoxyribonucleic acid (DNA). Having extracted the genomic DNA from human blood leukocytes by means of High Pure polymerase chain reaction (PCR) Template preparation kit, we carried out polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) on each blood sample. Then, Genomic DNA was digested by BstU-I restriction enzyme. Thereafter, restriction products were analyzed by means of Polyacrylamide gel electrophoresis and stained by Ethidium Bromide.

RESULTS:

We found that the frequency of Ala allele in healthy subjects was significantly higher than in diabetic subjects (P = 0003). Moreover, the genotype frequency of Ala/Ala in healthy subjects was significantly higher than in diabetic subjects (P < 0.001). However, the genotype frequency of Ala/Pro in diabetic subjects was significantly higher than in healthy subjects (P < 0.001).

CONCLUSION:

The present study suggests that polymorphism of PPAR-γ2 gene is associated with T2DM. Furthermore, Ala allele is significantly found in non-diabetic individual’s Iranian population.

Salsalate improves glycemic control in patients with newly diagnosed type 2 diabetes

Chronic inflammation contributes to insulin resistance and type 2 diabetes mellitus (T2DM). We investigated whether treatment with salsalate, an anti-inflammatory medication, improves glycemia in a group of newly diagnosed drug-naïve patients with T2DM. The study was a randomized, double-blind, placebo-controlled trial. Diagnosis of T2DM was made within 2 months of enrollment, and participants had not received any anti-glycemic agent. Sixty adults were randomized to receive salsalate (3 g/day) or placebo for 12 weeks. Fasting plasma glucose and insulin, glucose 2 h after 75 g oral glucose, HbA1C, lipid profile, HOMA-IR, and HOMA-B were determined before and after treatment. Salsalate reduced fasting glucose from 6.3 ± 0.2 mmol/l to 5.4 ± 0.2 mmol/l (P < 0.01) and TG from 1.9 ± 0.2 mmol/l to 1.5 ± 0.2 mmol/l (P < 0.03). Fasting insulin levels were increased in the salsalate group from 18.8 ± 1.6 to 21.6 ± 3.9, while they decreased in the placebo group. HbA1c rose in the placebo group from 6.2% ± 0.2 to 7.9% ± 1.1 mmol/mol, but decreased in the intervention group from 6.1% ± 0.5 to 5.6% ± 0.2 mmol/mol (P < 0.04 for between-group comparison). HOMA-IR did not change but HOMA-B increased ~1.7-fold (P = 0.06) in the salsalate group. The results show that salsalate is effective in improving glycemic control in newly diagnosed naïve patients with T2DM. The optimal duration of treatment with salsalate and sustainability of its effect requires further study (IRCT138709011465N1).

Gastric syphilis: a case-report

CLINICAL CASE A 43-year-old Romanian woman was referred with the clinical suspicion of gastric lymphoma; she had complained from two months nausea, vomiting and weight loss (7 kg); 3 esophagogastroduodenoscopic examinations had evidenced reduced distensibility of stomach body and antrum, ulcered and congestive mucosa, the histopathological examinations revealed a non specific inflammation. There was no response to therapy with omeprazolo. A computer-assisted tomoghraphy scan of the thorax and abdomen, obtained after the oral and intravenous administration of contrast material, showed diffuse thickening of the gastric wall, lymphadenopathies were seen in the retrocrural space, lesser curvature, and paraaortic region. It was performed another upper endoscopy with “deep” biopsy specimen, comprehensive of spirochetal immunohistochemistry, that was diagnostic for gastric syphilis. DISCUSSION Even though gastritis is a rare clinical manifestations of the secondary stage of syphilis, it must be considered in the differential diagnosis of erosive gastritis unresponsive to medical therapy, especially in young patients; screening tests like VDRL (routinely used until few years ago in internal medicine divisions) may be useful to identify those patients needing a further diagnostic evaluation.

Association of polymorphism of ser311cys paraoxonase-2 gene with type 2 diabetes mellitus in iran

BACKGROUND

It is believed that paraoxonase-2 gene polymorphism is associated with type 2 diabetes. This study is aimed to investigate the association between paraoxonase-2 gene polymorphism and type 2 diabetes in an Iranian population.

METHODS

This study was performed on 200 individuals including 100 diabetics and 100 healthy subjects. Genomic DNA was extracted from peripheral blood leukocytes, and PCR-RFLP was carried out. Palindromic sequence in PON2 gene was recognized by Dde1 restriction endonuclease. In order to visualize restriction products, electrophoresis was carried out using polyacrylamide gel (8%) and ethidium bromide staining.

RESULTS

The expected PCR product of 331 bp was obtained. Digestion of this product with DdeI showed four Ser homozygotes, three Cys homozygotes, and five Ser311 Cys heterozygotes. The gene frequency of Cys (C) in diabetic subjects was significantly higher than in healthy subjects.

CONCLUSIONS

This study suggests that an association exists between Ser311 Cys polymorphism and type 2 diabetes mellitus.

Prevalence of stomach cancer in Shiraz, Southern Iran

BACKGROUND

Worldwide, cancer of stomach is still the fourth common cancer and the second cause of mortality among all cancers affecting annually 870,000 subjects. This study aims to determine the frequency and the characteristics of gastric cancer in southern Iran.

MATERIALS AND METHODS

10,800 of all cancers registered in Fars Hospital-based Cancer Registry were surveyed among which 574 cases were gastric cancer in both genders and all age groups. From January 2002 to December 2007, all hospital-based data were recorded according to International Classification of Disease for Oncology (ICD-O) and registered cases included all invasive cancers in ICD-10 categories of C-00 to C-80 and all duplicate cases were eliminated.

RESULTS

Among all registered cancers, there were 574 cases of gastric cancer including 69.3% males. The mean age of patients was 58.1 ± 14.8 years, 25.4% with a history of in their first relatives and most of them were smokers (50.9%) and from low socioeconomic class (45.5%). Metastasis was visible in 182 patients and majority of them underwent surgery (64.3%). The majority of gastric cancer patients were older than 50 years, smokers, low socioeconomic class, and female in favor of adenocarcinoma.

CONCLUSION

Our results showed that in our area, treatment programs and health plans should focus on men, patients older than 50 years and with adenocarcinoma, smokers, and those in a low income level.

Effect of oral N-acetyl cysteine on eradication of Helicobacter pylori in patients with dyspepsia

AIM

Using mucolytic agents that decrease viscosity of the gastric mucous and therefore, increase the permeability of antibiotics through gastric membrane has been offered as an additive treatment to achieve a higher rate of eradication of Helicobacter pylori (H. Pylori) infection. The aim of this study was to determine the efficacy of oral N-acetyl cysteine (NAC) on eradication of H. pylori infections in patients suffering from dyspepsia.

METHODS

In this randomized double-blinded clinical trial, 60 H. pylori positive patients who were suffering from dyspepsia were included. They were divided into two groups. Both groups received three-drug regimen including pantoprazole 40 mg BD, ciprofloxacin 500 mg BD and bismuth subcitrate 120 mg two tablets BD. Experimental group (30 cases) received 600 mg of NAC besides three-drug regimen. Control group received placebo. The results of therapy were tested by 14C-UBT and were compared with each other two months after the first visit.

RESULTS

H. pylori infection was eradicated in 21 (70%) and 17 (60.7%) patients in experimental and control groups, respectively (P=0.526). Regarding clinical and endoscopic variables, no significant difference was observed between the two groups except for erosive gastritis (0.041) and erosive esophagitis (0.031).

CONCLUSION

Our findings offer that NAC has an additive effect on H. pylori triple therapy with pantoprazole, ciprofloxacin and bismuth subcitrate. Although NAC does not have any known activity against H. pylori, it can reduce the thickness of the mucus layer and increase the permeability of antibiotics at the site of infection. To evaluate this effect, more studies with larger sample size should be performed.