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Articles by M. Abbasi
Total Records ( 4 ) for M. Abbasi
  A. Esteghamati , H. Ashraf , O. Khalilzadeh , A. Rshidi , K. Mohammad , F. Asgari and M. Abbasi
  Aims The prevalence of diabetes is increasing dramatically worldwide. Less is known about whether this trend is similar among obese and lean individuals. Methods We analysed the data sets of three cross-sectional national surveys in adults aged 25–64 years: the National Health Survey-1999 (n = 21 576), and the national Surveys of Risk Factors of Non-Communicable Diseases (SuRFNCD)-2005 (n = 70 981) and SuRFNCD-2007 (n = 4233). Diagnosed diabetes was ascertained, and height and weight were measured in all surveys. In SuRFNCD-2005 and SuRFNCD-2007, fasting plasma glucose was used to identify subjects with newly diagnosed diabetes (≥ 7 mmol/l) and impaired fasting glucose (5.6 -6.9 mmol/l) among individuals not reporting diabetes. Results The prevalence of diagnosed diabetes (after adjustment for age, sex and residential area) was 2.5, 4.0 and 4.6% in 1999, 2005 and 2007, respectively. The total prevalence of diabetes increased from 7.7% in 2005 to 8.7% in 2007, about half of which was attributed to newly diagnosed disease (in both surveys). The prevalence of diabetes increased in all categories of obesity, with the most evident trend being among subjects with body mass index < 25 kg/m2. Conclusions The prevalence of diabetes among Iranian adults has increased more than 1.8-fold in a period of only 8 years since 1999. This is the first report from Iran, and urgent measures need to be taken in order to prevent the progression and worsening of the problem and emergence of its undesired consequences.
  A. Esteghamati , M. Abbasi , A. Rashidi , A. Meysamie , O. Khalilzadeh , M. Haghazali , F. Asgari and M. Nakhjavani
  Not available
  A. Esteghamati , H. Ashraf , M. Nakhjavani , B. Najafian , S. Hamidi and M. Abbasi
  Aims  To assess the association of insulin resistance with increased urinary albumin excretion (UAE) in a cohort of Iranian Type 2 diabetic patients.

Methods  Three hundred and sixty-one men and 472 women with Type 2 diabetes were enrolled from three different outpatient clinics (Tehran, Iran) during the period 2005-2008. Patients with obstructive uropathy, severe heart failure, liver disease, cancer, autoimmune disease and macroalbuminuria were not included. Microalbuminuria (MA; defined as UAE ≥ 30 mg/day) was found in 242 (29.1%) patients; 591 (70.9%) subjects had normoalbuminuria (UAE < 30 mg/day). Insulin resistance was assessed using homeostasis model assessment of insulin resistance (HOMA-IR).

Results  HOMA-IR index values were higher in subjects with MA than those with normoalbuminuria (P < 0.00001). Adjusted values (for age, sex and duration of diabetes) of UAE and HOMA-IR were 11.81 ± 7.51 (mg/day) and 3.30 ± 2.21 in normoalbuminuric and 75.36 ± 55.57 (mg/day) and 4.98 ± 3.22 in the MA group, respectively (P < 0.00001 for all). Multiple regression analysis showed that UAE was predicted by HOMA-IR, independently of age, duration of diagnosed diabetes, triglycerides, waist circumference, metabolic control, blood pressure and related treatments (P < 0.00001). When patients were categorized into quartiles of HOMA-IR, those of the fourth quartile (i.e. the most insulin resistant) were at a higher risk of increased UAE than other quartiles [odds ratio (OR) 3.7 (95% confidence intervals 2.7-6.2)].

Conclusions  In Iranian Type 2 diabetic patients, albuminuria was strongly associated with insulin resistance. HOMA-IR is an independent predictor of UAE.

  N. Sepehrian , M. Abbasi and M. Noori
  In this study, Electrospinning and producing composite nanofibers of Polyvinyl Alcohol (PVA) Silica nano-Fibers (SiO2) were studied. The effect of concentrations of silica nanoparticles, concentration of PVA auxiliary polymer, calcining process temperature and duration of this process on the formation of composite silica nanofibers was examined. The morphology and structure of nanofibers produced were investigated by using light microscopy, Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). Composite nanofibers with 6, 8, 10 and 12 weight percent of PVA auxiliary polymer along with silica nanoparticles of 50.70, 90 and 100 weight percent of the auxiliary polymer were produced. Given that the PVA destroys at temperatures>494°C, nanofibers were calcined at three temperatures of 500, 700 and 900°C for 3 h. The results showed that the composite nanofibers with initial concentration of 10 weight percent of the PVA auxiliary polymer and Silica nanoparticles of 90 weight percent of the auxiliary and calcined polymer at 700°C produce the best silica nanofibres. To evaluate the effect of calcining process duration, nanofibers were placed in the furnace for 7 h. Increasing the process duration reduced the crystallinity of nanofibers and nanoparticles loss.
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