Persian Population Research Articles

Prevalence of sleep apnea-related symptoms in a Persian population

There are no published data regarding the prevalence of obstructive sleep apnea (OSA) in Iran. The purpose of this cross-sectional study was to identify individuals with a high likelihood to suffer from obstructive sleep apnea in the Persian population. This was compared to similar studies in other countries. As a part of a population-based cross-sectional study, 3,600 randomly selected individuals aged 18 years or more, were invited to take part in the survey, 3,529 individuals (98%) agreed to fill out the Berlin sleep questionnaire. Based on the Berlin Criteria, 176 subjects (4.98%) were identified as suspicious for OSA. This group consisted of 74 (42%) males and 102 (58%) females. The prevalence of high-risk Berlin in men and women were not significantly different with chi-square test (p > 0.2). But high-risk Berlin subjects also were increasing with age (p < 0.001) and increasing with obesity (p < 0.001) and decreasing with higher education (p < 0.001) with chi-square test. Predictors of high risk for OSA-related symptoms were female sex, age more than 50 years, and body mass index. We identified persons with a high risk for OSA among a representative Iranian sample. It is concluded that the prevalence of sleep apnea syndrome symptoms is lower in our population as compared with western countries which can be attributed to the excessively young Iranian population.

Relationship between serum ferritin and inflammatory biomarkers with insulin resistance in a Persian population with type 2 diabetes and healthy people

Background The correlation between body iron stores and inflammation with insulin resistance in type 2 diabetes is not thoroughly investigated, especially in the Persian population.Methods A cross-sectional study was designed in Tehran, Iran. Fifty-four people with type 2 diabetes and 53 matched healthy participants were included. Serum ferritin, total iron binding capacity, insulin resistance, C-reactive protein and tumor necrosis factor-α were measured in both groups.Results Diabetic patients had higher insulin resistance, hemoglobin A1C and serum ferritin. Significant positive correlations were observed between insulin resistance with serum ferritin and tumor necrosis factor-α and between serum ferritin and tumor necrosis factor-α in diabetic patients.Conclusions Inter-relationship between insulin resistance, serum ferritin and TNF-α was found in type 2 diabetic patients. Serum iron even in the normal range had positive correlation with insulin resistance. It may be because the normal ranges determined for serum ferritin are too wide and the criteria for iron overload are too high.

Clinical and demographical characteristics of primary progressive multiple sclerosis in Isfahan, Iran

Primary progressive multiple sclerosis (PPMS) is an uncommon form of multiple sclerosis (MS) in which the course of disease is progressive from onset. In a retrospective study amongst 1606 MS patients registered in Isfahan MS Society (IMSS) from April 2003 to 31 December 2005, 92 PPMS cases were identified. That means, the frequency of PPMS amongst all included MS patients would be 5.7% (95% CI: 6.7% and 4.7%). The mean expanded disability status scale (EDSS) for the group was 5.09 +/- 1.3. The commonest mode of presentation was motor disturbance in 55 (59.8%), other modes of presentation were, vertigo in 15 (16.3%), visual problems in 12 (13%), sensory disturbances in six (6.5%), and diplopia in four (4.3%). The current [corrected] existing symptoms were motor problems in all 92 (100%), cerebellar symptoms in 46 (50%), and cognitive impairment in only 6[corrected](6.5%). Interestingly, two (2%) were affected by poliomyelitis during childhood and presenting symptom in both was limb weakness. Primary progressive form of MS is less common in Persian population and some of the rates observed in PPMS patients differ from those in other regions, these differences may be due to different ethnicity of Persian patients or to geographical differences.

The Khorasan Stroke Registry: Results of a Five-Year Hospital-Based Study

The hospital-based stroke registry is useful for understanding the diverse clinical characteristics of stroke related to geographical, racial or environmental differences. The Khorasan Stroke Registry (KSR) was established for the evaluation of incidence, clinical manifestations, risk factors, topography and etiology of ischemic stroke in Southern Khorasan, Iran, during 2001–2005. Consecutive stroke patients underwent a standard battery of diagnostic investigations by a stroke neurologist. The topography and etiology of brain infarction were determined by the Practical Iranian Criteria classification. The incidence of ischemic stroke in the Persian population is 43.17 cases per 100,000 people per year. A total of 1,392 ischemic stroke patients (738 females, 654 males) were evaluated in the KSR. The etiologies included atherosclerosis (53.6%), followed by uncertain causes (19.9%), cardioembolism (11.8%) and miscellaneous etiologies (2.9%). Of our patients, 11.7% had both atherosclerosis and cardioembolic mechanisms. Rheumatic valvular disease was present in 44.8% of cardioembolic stroke patients and caused 4.31 preventable stroke cases per 100,000 Persian people per year. Hypertension and history of ischemic cerebrovascular events were the most frequent risk factors, 53.1 and 22.3%, respectively. The in-hospital mortality of our ischemic stroke patients was 7.3%. A total of 336 patients with intracerebral hemorrhage (189 females, 147 males) were evaluated in the KSR. The incidence of intracerebral hemorrhage in the Persian population is 10.43 cases per 100,000 people per year. The high frequency of atherosclerotic etiology in the KSR is due to its classification criteria, which do not separate small vessel territory infarcts as a different etiologic subtype. Rheumatic valvular disease is an important cause of stroke in the Persian population.

P-653: CFTR mutations panel of persian males with congenital bilateral absence of the vas deferens

Study the involvement of the CFTR gene mutations in CBAVD in Persian population with presumed low cystic fibrosis (CF) frequency for the first time and finding CFTR gene mutation panel for Persian Patients.

Patterns of some measured mental abilities among persian bilingual and monolingual children

The purpose of this study was to provide some empirical answers regarding the effects of home and school language upon some cognitive abilities of elementary school bilinguals where the two languages involved do not bear any resembalance. A Persian translation of CTMM adjusted to Persian population was administered to elementary school children of two types of bilingual and one Persian monolingual school. The results indicate that within bilingual schools home language does not show any consistent effect upon non-language abilities. The only consistent effect was in the language measure of Delayed recall, in favor of Persian speaking homes. Comparison of various schools indicate that in the third and sixth grades Persian control was superior to both type of bilingual schools in terms of Immediate recall and to immersion schools in terms of Delayed recall. An exposure variable to Persian was then defined showing a direct relationship with amount of retention. This relationship was explained by resistence to forgetting due to the degrees of overlearning of Persian in various groups.

The Effects of the Muslim Conquest on the Persian Population of Iraq

The Effects of the Muslim Conquest on the Persian Population of Iraq

Mongol Manpower and Persian Population

Mongol Manpower and Persian Population

Mongol Manpower and Persian Population

Mongol Manpower and Persian Population