Showing 18 results for Hba1c
Massoud Amini, Mehrdad Hosseinpour, Gashtasb Sattari, Sasan Haghighi,
Volume 1, Issue 1 (7-2001)
Abstract
Background: Oral glucose tolerance testing (OGTT) is the gold standard for the diagnosis of diabetes mellitus and impaired glucose tolerance (IGT), but is time-consuming and difficult to perform. We investigated the value of glycosylated hemoglobin (HbA1C) in screening for diabetes mellitus and IGT.
Methods: In a cross-sectional study, we measured the HBA1C levels of 497 people referred for OGTT. We calculated the sensitivity and specificity of HbA1C at 1, 2, 3 and 4 SD above the normal mean. We plotted receiver operating characteristic (ROC) curves after assigning our subjects to the diabetic, IGT, ‘diabetic+IGT’, or normal group, based on WHO criteria for OGTT.
Results: HbA1C levels (mean ± SD) in the four groups were 9.2±1.5, 8.4±1.3, 7.9±0.8 and 6.8±0.7 percent in the diabetic, diabetic+IGT, IGT and normal groups, respectively. All differences were statistically significant (p<0.0001). ROC curve analysis showed that HbA1C levels above 7.5% (mean + 1SD) gave the best combination of sensitivity and specificity for the detection of diabetes (97.53% and 73.8%), IGT (66.37 and 69.44%), and diabetes+IGT (80.22% and 86.66%).
Conclusions: An HbA1C level of >7.5% is an optimal cutoff point for diabetes screening programs.
Nosratollah Zarghami, Radina Eshtiaghi, Ali Khosrowbeygi, Dian Dayer, Jamai Hallaji,
Volume 3, Issue 1 (5-2004)
Abstract
Diabetes is a common endocrine disease with complications such as retinopathy, nephropathy and neuropathy which has its monitoring through biomarkers desirable. At present, glycosylated hemoglobin (HbAic) is used for monitoring the long term control of glucose levels in diabetic patients. However, absence of a standardized range, has led to investigations that recently have suggested insulin-like growth factor-I (IGF-I) as a good biomarker for monitoring blood glucose levels in diabetics. The aim of this study was to examine the correlation between IGF-I and HbAic in Type 1 diabetes.
Methods: We designed a cross-sectional case-control study. The study composed of 26 newly diagnosed patients with Type 1 diabetes (15 male and 11 female mean age, 23.7±9.1 years) and 26 healthy controls (9 male and 17 female mean age, 24.1±4.4 years). Levels of fasting plasma glucose (FPG), HbA]C) IGF-I and IGF-binding protein-3 (IGFBP-3) were measured in both groups. FPG was measured by enzymatic glucose oxidase method and the colorimetric method was used to measure HbAlc. Determination of total serum levels of IGF-I and IGFBP-3 were done using immunoassay methods. P-value<0.05 was considered as statistically significant.
Results: The mean value of IGF-I concentrations in type 1 diabetics was significantly lower than controls (p< 0.05). A reverse correlation was observed between IGF-I and HbAic. Conclusion: The study indicates that in poorly controlled diabetics, levels of FPG and HbAic rise concurrent with a drop in levels of IGF-I decreases. Our study also showed a significant correlation between IGF-I and HbAie. Therefore, IGF-I could be indirectly used as a biomarker for controlling glucose levels in diabetics.
Faranak Sharifi, Niloufar Ahmadi Moghaddam, Noureddin Mousavi-Nasab,
Volume 5, Issue 2 (9-2005)
Abstract
Background: To determine the importance of type 2 Diabetes mellitus as a risk factor for osteoporosis in postmenopausal women, this study was designed in endocrine clinic of zanjan in 2003.
Methods: As a case-control study, 40 diabetic and 40 healthy menopause women have been recruited. These two groups were matched in terms of their age, length of their menopausal period and body mass index. Serum Calcium, Phosphorus, Alkaline phosphatase and Estradiol were measured in all the cases and bone densities in three sites (Femoral neck, lumbar spine and forearm) were evaluated with DXA. All data were analyzed using T-test, analysis of variance, chi-square and multiple regression tests.
Results: The frequency of osteoporosis and osteopenia in diabetic women were not significantly different from non diabetics. The mean bone density in femoral neck was higher in diabetic group (P= 0.013). In both groups there was a significant relationship between bone density and length of menopause (P<0.01) .The relationship between BMI and Bone density was significant only in femoral neck (P<0.01) in both groups. In diabetic women, the higher HbA1c accompanied with the lower bone density in lumbar spine.
Conclusion: Although the level of HbA1c as a marker of blood glucose control, has a relationship with lumbar spine density in diabetics, Diabetes type 2 is not a risk factor for osteoporosis, So screening, diagnosis and management of osteoporosis in diabetes type 2, Should be done independently and according to other risk factors.
Nosratollah Zarghami, Amir Bahrami, Majid Mobasseri, Bagher Larijani, Pooran Karimi, Behrang Alanii,
Volume 5, Issue 3 (5-2006)
Abstract
Background: Diabetes is a common endocrine disease in human kind. In most type II diabetic patients, obesity and overweight status account as the serious health problems worldwide and variety of endocrine factors well known that have regulatory role in weight balance and body composition including Leptin and IGF-I factor. The aim of this study was to examine the correlation between Leptin and IGF-I in type II diabetics and controls.
Methods: As a case- control study, 38 type 2 diabetics (20 males and 18 female with mean age 49.22) and 46 healthy controls (16 males and 30 females with mean age 49.52) are recruited. We measured the concentrations of FPG, IGF-I, HbA1C and IGFBP-3 in both groups. FPG was measured by enzymatic glucose oxidase method and Hb Gold analyzer HPLC was used to measure HbA1C. Determination of Leptin, IGF-I, IGFBP-3 and Insulin concentrations were carried out using ELIZA method. P< 0.05 was considered as statistically significant.
Results: The mean of BMI and age were not significantly different in both groups. The mean serum levels of IGF-I, Leptin, Insulin, FPG and HbA1c concentrations in type II diabetics were significantly higher than controls (P< 0.05). In males, the mean serum levels of Leptin were statistically lower than in females in both groups. There was a strong correlation between IGF-I and IGFBP-3, Leptin and insulin, IGF-I and age, and BMI with FPG in both patients and controls (P< 0.05). A reverse correlation was observed between IGF-I and HbA1c in patients and controls (P< 0.05).
Conclusion: It is speculated that based on this findings, Leptin and IGF-I system could have regulatory roles in body composition and fat content particularly in obese and overweight diabetic patients and have significant correlation with Insulin, glucose, BMI and age.
Mohammad Ali Sardar, Ali Akbar Shamsian, Morteza Taghavi,
Volume 6, Issue 1 (8-2006)
Abstract
Background: Combination of physical activity and pharmacotherapy in diabetes may augment the effects of the drug and may allow lower doses of medication that can minimize the side effects. The goal of the study was to determine the effectiveness of aerobic training and Glibenclamide combination in type 2 diabetes.
Methods: A total of 28 men with type 2 diabetes were divided to 3 groups randomly: Glibenclamide (5 mg daily) only, Glibenclamide (5 mg daily) plus aerobic training, Glibenclamide (2.5 mg daily) plus aerobic training. Aerobic training protocol was performed for 12 week, 3 days (session) a week, 45 minutes in a session (ergo cycle program at 60-70 % heart rate reserve). Fasting glucose, HbA1c, fasting insulin, c-peptide, and insulin resistance were measured at pre, mid and post treatment periods. Analysis of Variance test (ANOVA) were used to evaluate data.
Results: HbA1c significantly decreased and c-peptide significantly increased in three groups (P<0.05).There were also no between-group differences for c-peptide and HbA1c (P>0.05). Fasting insulin concentration did not alter in three groups, however, insulin resistance decreased ( no significant ) after 12 weeks.
Conclusion: In type 2 diabetic patients, Glibenclamide treatment alone or combination of aerobic training and Glibenclamide treatment, was effective in improving glycemic control in patients with type 2 diabetes .As a result, in patients with type 2 diabetes, the addition of aerobic training to Glibencelamide treatment allow lower doses of Glibenclamide to be used without impairment in glycemic control.
Saeed Sadat Mansouri, Alireza Esteghamati, Yasaman Yousefi,
Volume 6, Issue 1 (8-2006)
Abstract
Background: The relationship between diabetes and periodontal diseases has already been proved, but the effect of non-surgical periodontal therapy on the control of diabetes is controversial. The aim of this study was to determine the effect of this type of treatment on the control of diabetes.
Methods: In this randomized clinical trial 30 type 2 diabetic patients with moderate to severe periodontitis who were referred to the diabetes clinic of Imam Khomeini hospital during 2004-2005 were studied. The treatment procedure was explained for control group and an informed consent was taken. Scaling and root planning was randomly done for 15 patients, while control group were not treated for periodontal disease. The glycated hemoglobin (HbA1C) and clinical attachment loss was measured for all of the patients before and 2 months after treatment.
Results: At the baseline the clinical attachment loss (CAL) was significantly different between two groups. There was no significant difference between baseline HbA1C in the control and the experimental group. After 2 months the HbA1C was reduced in the treated group which was not statistically significant.
Conclusion: In this study non-surgical periodontal therapy had not effect on the control of type 2 diabetes.
Amir Bahrami, Nosratollah Zarghami, Liela Khajehali,
Volume 6, Issue 3 (5-2007)
Abstract
Background: Type 2 diabetes mellitus is a common metabolic disorder witht increasing prevalence is increasing worldwide. C-Reactive Protein (CRP) is a marker of systemic inflammation and an independent risk factor for cardiovascular disease (CVD). The aim of this study was to elucidate the correlation between glycemic control and systemic inflammation by measuring serum CRP levels.
Methods: In this cross sectional study 136 patients with type 2 diabetes mellitus (69 females, 67 males) were recruited. In addition to measurement of CRP levels by highly sensitive methods and measurement of hemoglobin A1C effects of influencing factors on the CRP level was considered. Fasting plasma glucose was determined via the glucose oxidase method, HbA1C via HPLC, serum lipid profile enzymatically and hs-CRP with sandwich immunoassay method.
Results: The mean concentrations of CRP levels in these patients (5.2 ± 4.8 mg/L) were higher than normal range and in women greater than men (6.4 ± 5.5 vs. 3.9 ± 3.6 mg/L). Before adjusting for influencing factors the association between hs-CRP levels and hemoglobin A1C was negative but not statistically significant (r= -0.15, P=0.07). After adjusting, the association was negative and significant. (r= -0.22, P= 0.02). In this study the relation between hs-CRP and lipid profile was also determined. There was no significant relationship between the levels of hs-CRP and total cholesterol, LDL-C and HDL-C. A positive correlation between hs-CRP with serum triglyceride and triglyceride / HDL ratio was observed. However, the correlation was not significant.
Conclusion: These results demonstrate that hs-CRP levels is influenced with multiple factors, and increased hs-CRP levels in patients with type 2 diabetes mellitus can not be explained with hyperglycemia alone.
Ozra Tabatabaei Malazy, Mohammad Reza Mohajeri Tehrani, Mohammad Hossein Forozanfar, Zahra Shaban Nejad, Bagher Larijani,
Volume 6, Issue 4 (6-2007)
Abstract
Background: Pump therapy (CSII) is offered as a safe and effective treatment for patients with type 1 Diabetes. We examined the efficacy and safety of continuous subcutaneous Insulin Infusion Therapy for six months as a before-after clinical trial study among type 1 diabetic patients. This is the first survey of this experience in Iranian patients.
Methods: We recruited, type 1 diabetic patients without chronic complications of diabetes (retinopathy, nephropathy and etc.) and followed them for six months as a before-after clinical study with use of the pump. The efficacy of this way was assessed with HbA1C and fasting blood sugar measurements. Safety was estimated by frequency of clinical hypoglycemia episodes.
Results: Our patients were 7 men and 2 women aged 15 - 39 years with past history of diabetes by ranging from 0.1 to 15 years. Mean level of HbA1C at the beginning of study and after six months follow-up were %8.6 and %7.1, respectively, with significant statistically difference between them (P= 0.02). During pump therapy the mean dose of insulin were decreased to 10 units with statistically significant difference to before investigation (P = 0.03). No case of hypoglycemia and weight loss was seen. One patient had 4 kg weight gain without any significant statistical effect.
Conclusion: It seems CSII Therapy in Iranian patients with type 1 Diabetes mellitus was effective and safe. We can not conclude about possible side effects of pump based on this study.
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Volume 7, Issue 3 (6-2008)
Abstract
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Volume 9, Issue 0 (5-2010)
Abstract
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Volume 10, Issue 3 (3-2011)
Abstract
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Volume 11, Issue 4 (6-2012)
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Zeinab Shayeghian, Parisa Amiri, Maria E. Aguilar-Vafaie, Mahmoud Parvin, Kobra Roohi Gillani,
Volume 13, Issue 2 (1-2014)
Abstract
Background: Cognitive and emotional deficits in alexithymia lead to various problems in somatic
disorders and other medical conditions for example Diabetics. The aim of this study was to examine
the effect of alexithymia on relationship between self-care and control of blood sugar in type 2
diabetes patients within the Iranian social and cultural context.
Methods: The present study was a cross-sectional investigation. The study sample consisted of 100
(60 females and 40 males, aged 40 to 70 years) type 2 diabetic outpatients visiting Labbafinejad
hospital during the year 2012. Measures for data collection included demographic, anthropometric
and clinical questionnaires, the short scale for diabetes self-care activities and the diabetes-related
quality of life. Blood tests were performed to obtain HbA1c levels and other laboratory measures
related to the study. Data were analyzed using SPSS16 software.
Results: Pearson product correlation results yielded significant negative associations between self-
care activities and alexithymia as well as HbA1c levels in type 2 diabetes patients. Results of
hierarchical regression analyses indicated that diabetes-related self-care activities explained 40% of
HbA1c variance and alexithymia added explanatory variance above and beyond self-care, to jointly
explain 58% of HbA1c variance.
Conclusion: Based on the present findings, diabetes-related self-care and alexithymia predicted
HbA1c levels in patients with type 2 diabetes. Given the evidence on the additive validity of
alexithymia in the prediction of HbA1c levels found in the present study, attention to emotional
competencies and disorders of Iranian diabetic patients may effectively contribute to their control of
diabetes.
Tahereh Keramati, Farideh Razi, Mohammad Reza Mobinizadeh, Alireza Oliaei Manesh, Bagher Larijani,
Volume 15, Issue 1 (1-2016)
Abstract
Background: Diabetic patients need to be followed for glycemic index regularly and HbA1c test is one of the most important biochemical markers for patient monitoring. HbA1c should be standardized based on international standards, but using internationally accepted assays are expensive. This study aimed to evaluate cost effectiveness of different assays which are currently used in Iran.
Methods: In this economic evaluation study, five HbA1c assays (Pars Azmoon, NycoCard, DS5, Biosystems and CERA STAT 2000) have been evaluated for cost, sensitivity and specificity, true score and also incremental cost-effectiveness ratios. Tosoh G8 has been considered as reference method.
Results: Although none of the assays can be a good alternative for reference method, DS5 and pars azmoon had better cost effectiveness results compared to other assays.
Conclusion: The quality of HbA1c assays need to be improved by using real tariff or the establishment of referral labs.
Maedeh Moradi, Fahimeh Haghighatdoost, Awat Feizi, Leila Azadbakht,
Volume 15, Issue 3 (2-2016)
Abstract
Background: Several studies have evaluated the effects of coenzyme Q10 on glycemic control, but there are large discrepancies between studies.
Objective: This meta-analysis of randomized controlled trials aimed to summarize the effect of Co-Q10 on diabetes’ biomarkers.
Methods: This systematic review and meta-analysis was conducted on studies published from 1998 until December 2015. We searched Pub med, EMBASE, Science direct, ISI web of science and Google Scholar to find relevant studies. Totally, our search resulted in 16 articles reporting the effects of Co-Q10 on fasting blood glucose, fasting insulin and HbA1c. Mean ± standard deviations (SD) were used for calculating mean differences. 95% confidence interval was considered between intervention and control treatments.
Results: The present meta-analysis revealed that Co-Q10 decreased fasting blood glucose (-0.20mg/dl, 95%: -0.38,-0.02). However, Co-Q10 supplementation could not effectively reduce HbA1c (0.05%; 95%: -0.22, 0.12) and fasting insulin (0.12pmol/l; 95%: -0.21, 0.44).
Conclusion: Co-Q10supplementation didn’t result in reduction in HbA1c and fasting insulin. However, it had a significant lowering effect on fasting blood glucose. It should be noted that significant changes in fasting blood glucose reported in this study was due to the extended sample size and this is not clinically significant in the present study.
Seyed Saeed Hashemi Nazari, Mohammad Ali Bigdelli, Soheila Khodakarim, Hamid Brodati,
Volume 15, Issue 6 (7-2016)
Abstract
Background: Diabetes is the most common metabolic disorder. Progression of diabetes complications mostly due to lack of blood sugar control. The purpose of this study was to test a hypothesized model of individual and social factors affecting blood sugar control.
Methods: Present study is a cross-sectional study and patients were selected using sex stratified random sampling. Path analysis was conducted to investigate effects variables of the diabetes knowledge, patient and doctor relationship, self care, the number of education years, household income and duration of diabetes on HbA1c. The following goodness-of-model fit were used: χ2, RMSEA, CFI and SRMR test-statistics.
Results: The estimated model demonstrated good model fit, (χ2 = 5, p=0.4), (RMSEA=0.006), (CFI =0.99) and (SRMR=0.022). Total effect and total indirect effect of age on HbA1c were significant. Age through duration of diabetes had significant indirect effect on HbA1c. Total effect of duration of diabetes on HbA1c was significant. With increasing duration of diabetes HbA1c also had increased. Total effect of waist-to-hip ratio on HbA1c was significant. Waist-to-hip ratio had significant direct effect on HbA1c.
Conclusion: In the current study the effect of individual factors such as age, waist-to-hip ratio, depression and duration of diabetes on glycemic control were detected. According to the capabilities used in this method can providing results of this study with patients and local policy makers in order to improve the care of patients with diabetes
Soroor Kazemi, Sheida Sodagar, Sadegh Taghiloo, Maryam Bahrami Hidji, Nooshin Shirzad,
Volume 22, Issue 5 (12-2022)
Abstract
Background: The present study was conducted with the aim of comparing lifestyle education based on the Bezenf model and the World Health Organization model on FBS, 2HPPBS, HbA1c in patients with type II diabetes.
Methods: The research method was a semi-experimental and multi-group expanded type with pre-test-post-test designs and a control group with a follow-up period. The statistical population of this research included all patients with type II diabetes referred to the endocrinology department of Imam-Khomeini Hospital in 1400. In this research, from a list of 100 people with diabetes, 60 diabetic patients who met the entry criteria were identified. Then 45 people were randomly selected and replaced by random replacement in two experimental groups and one control group. Each experimental group received group psychological interventions separately, and at the end, both groups were subjected to a post-test. The obtained data were analyzed using mixed analysis with repeated measurements.
Results: The results indicate the effect of lifestyle education based on the Bezenf model and the World Health Organization model on FBS (P=0/001), 2HPPBS (P=0/001) and HbA1c (P=0/006) and the stability of this effect was in the follow-up phase. Also, compared to lifestyle education based on the World Health Organization model, lifestyle education based on the Bezenf model was a more effective method to reduce HbA1c in type 2 diabetes patients but the difference in the effect of the two groups on FBS and 2HPPBS was not significant.
Conclusion: The results indicated the effectiveness of both educational models and the superiority of the BAZENF educational model. Therefore, Lifestyle education based on the Bezenf model and the World Health Organization model can be used by therapists as adjunctive treatments in interventions for people with type 2 diabetes.
Somaye Emamrezaee, Vahid Valipour Dehnou, Aliyavar Azizpour Fard,
Volume 23, Issue 6 (1-2024)
Abstract
Background: BDNF decrease, and HbA1c and Asprosin increase in diabetic people and exercise can reverse these effects, but the effect of vigorous exercise on Asprosin and BDNF in elderly diabetic people have not been investigated. Therefore, the aim of the present study was to investigate the effect of high-intensity functional exercise on Asprosin and BDNF and their relationship with glucose and HbA1c in elderly diabetic men and women.
Methods: In this semi-experimental study, 24 elderly diabetic men and women (age: 67.25 ± 5.84, BM: 70.29 ± 13.01, height: 160.92 ± 10.29) participated. The initial blood sample was taken while fasting. After 90 minutes, the subjects performed the exercise for 50 minutes. The second blood sample was taken 10 minutes after the high-intensity functional exercise. BDNF, Asprosin, HbA1c, and glucose levels were measured by ELISA method. To analyze the data, T-tests, covariance and Pearson's correlation coefficient were used.
Results: Asprosin and BDNF decreased (P< 0.0005) and increased (P< 0.0005), respectively in both groups. There was no significant difference between Asprosin and BDNF in elderly diabetic men and women in pre-test and post-test (P> 0.05). There was a significant negative correlation between BDNF with Asprosin, HbA1c and glucose and a significant positive correlation between Asprosin with HbA1c and glucose (P< 0.05).
Conclusion: Vigorous exercise decrease and increase Asprosin and BDNF in elderly diabetic men and women, respectively. Also, considering the significant negative relationship between BDNF with glucose and HbA1c and the significant positive relationship between Asprosin with glucose and HbA1c, it seems that vigorous exercise by reversing the changes of asprosin and BDNF causes possible improvement in levels of glucose and HbA1c.
