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Major histocompatibility complex (MHC), which plays a major biological function in immune response, is generally associated with so many human disease. During recent years a new clinical relevance of MHC disease. On the other hand there is a strong correlation between some autoimmune diseases and MHC system such as in some allergic abnormalities and its relation with HLA antigens. In order to investigate this concept 30 atypic asthmatic patients and 100 healthy controls were selected. Human leukocyte antigen (HLA) typing was performed by standard NIH procedures and the results analyzed. The frequency of HLA-A2, A11, Aw19 and HLA-B51 decreased in atypic asthmatic patients with no association recorded significantly between HLA-C and allergic asthma. The results of our study indicated that there was a significant relationship between allergic asthma and HLA-I antigens.

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Background and Objectives: Measuring the H-reflex latency (Tp) is an electrophysiologic test to evaluate the S1 root lesions This reflex traverses a relatively long course and its sensitivity to diagnose mild S1 root lesions is low, so investigators have tried to shorten this pathway Evaluation of the central loop of the H-reflex (Tc) is one of these efforts and may be more sensitive in diagnosing S1 radiculopathy (Compared to standard H-reflex latency). We have tried to determine its influencing factors and find the related regression equation. Materials and Methods: Forty volunteers were investigated with their informed consent. Their history, physical examination and a brief electrophysiologic study were normal. H-reflex latencies (Peripheral- central) of right gastrocnemius-soleus muscle as described in literature, right leg length and age were recorded. Results: This group consisted of 26 males (65%) and 14 female (35%). Mean latencies (And SDs) of peripheral and central H-reflexes were 28.8 (SD: 1.66) and 6.78 (SD: 0.3) milliseconds respectively. The correlation between Tc and leg length was significant (P<0.05). There was no significant correlation between Tc and age (P<0.05). Tc and Tp were correlated. These regression equations were found: Tc=0.04L+5.28, Tc=0.05Tp+4.56, Tp=0.04A+0.3L+16.13 (L: leg length in centimeters, A: age in years, Tc and Tp in milliseconds). Discussion: The results of this study, regarding mean and SD of Tc are in line with the previous studies, and regarding the influence of age on Tc are in contrast with only one study and in line with another study. Conclusion: The correlation between Tc and leg length was significant (P<0.05). There was no significant correlation between Tc and age (P<0.05). These regression equations were found. Tc=0.04L+5.28, Tcx=0.07Tp+4.56, Tp=0.04A+0.3L+16.13 (L: Leg length in centimeters, A: Age in years, Tc and Tp in milliseconds). We concluded that it is wise to use leg length for calculating normal Tc and limiting the normal values. On the other hand, the authors believe that more research on specificity and sensitivity of this test (To diagnose S1 radiculopathy) and comparing it with other diagnostic tools is needed.

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Background&Objective: Thalassemia is the most common genetic disorder, 2-3 million carriers and 20 thousands with major thalassemia exist in our country. National prevention program of thalassemia started in 1998 and to encourage carriers to dispense marriage with increasing their knowledge was its main strategy. This study was designed to determine the effectiveness of thalassemia prevention program on couples knowledge and carriers and marriage avoidance in Gorgan province- Iran Materials&Methods: In this cross-sectional study, the data were collected by the questionairs which their validity and reliability were already confirmed. The sample population consist of 282 couples which were going to get married 107 couple with minor thalassemia which cancelled their marriage during 1998-2003 were also included in the sample poulation in this research. The detailed study were carried out on whole subjects. Data were entered into the SPSS and analyzed by chi-square, t-test and ANOVA. Results: In 282 couples, mean age was 20.5 on women and 24.86 in men, 57.8% were urban residents, 39.4% were relatives. Most of men had self-employed job and women were house keeper and half were under high school diploma. Distribution of knowledge level: 2.5% weak, 9.2% moderate, 53.2% good and 29.1% excellent. Relationship between knowledge and educational state, residency and job was meaningful (P<0.05), and there was not any relationship with age, gender and familial relativity. Ten couples were carrier that two of them were avoided from marriage. Also 43% of 107 carrier's couple whome were diagnosed in 1998-2003 avoided to get marriaged, meaningful relationships between subjects residency, education status and relativity (P<0.05). Conclusion: In spite of having a good knowledge, but some of the samples population in this study, did not show a suitable practice and most of high risk couples enter into marriage.

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Background and Objective: Several studies have demonstrated the importance of a coordinated, synchronized action of a scapular and glenohumeral muscles. Minimal alteration in performance and coordination of these muscles have the potential to lead to joint dysfunction. The impingement syndrome is the most common diagnosis of shoulder pain. The purpose of this study was to determine whether strength deficits could be detected in patients with shoulder impingement. Materials and Methods: This case – control study was done on 15 patients with impingement syndrome and 15 healthy matched persons by nonprobability sampling in Tehran, Iran during 2008. Strength of glenohumeral and scapulothoracic muscles was tested with a hand held dynamometer. Independent and paired t-test were used to statistically analyze between and within groups differences. Results: Compared to non impaired subjects, those with impingement syndrome demonstrated a significantly lower strength of shoulder muscles (P<0.05). The strength deficit between involved and noninvolved sides of patients was determined (P<0.05). In impingement syndrome patients, the external-to-internal rotator muscles strength ratio was significantly lower than on the control group (P<0.05). Conclusion: The result of this study suggest that strength deficit of shoulder muscles may be an important aspect of the impingement syndrome. Muscular strength assessment should be considered in evaluation and effective treatment of a patient. Physical therapy treatment should be emphasize strengthening of weak muscles.

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Background and Objective: Polycystic ovarian syndrome (PCOS) is one of the most prevalent (6-10%) endocrine glands disorders among child - bearing women. In addition to the patients, their first degree relatives are exposed to some risk factors such as abnormal lipoproteins. Due to high prevalence PCOS among women and the role of genetic factors in this abnormality, it is necessary to recognize high risk people particularly among first degree relative. Therefore this study was conducted to determine the level of serum lipoproteins in first degree relatives of patients with PCOS. Materials and Methods: This case control study was done on 107 individuals of the first degree relatives of PCOS patients as cases and 107 normal individuals of the first degree of non-PCOS as controls in Shiraz, Iran during 2009. Participants completed a test assessing demographics and blood sample were taken from all participants in order to assay serum lipoproteins including total cholesterol, LDL, HDL and triglyceride. Data was analyzed by means of independent t-test and Fisher's exact test as well as Chi-Square. Results: The means±SD of total cholesterol, HDLc and triglyceride in cases was 191±31.64, 167±4.06 and 191±31.64 mg/dl, respectively. The means±SD of total cholesterol, LDLc and triglyceride in controls was 158.25±18.25, 123±21.33 and 120.42±17.11 mg/dl, respectively. Serum level differences of LDL and triglyceride in cases and controls were significant (P<0.05). The means±SD of HDLc in cases and controls was 40.06±6.95 and 45.9±6.7 mg/dl, respectively (P<0.05). Conclusion: This study showed that the serum level of lipoproteins in the first degree relatives of PCOS patients is significant higher than non-PCOS.

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Background and Objective: There is a genetic background for polycystic ovary syndrome (PCOS). Due to increase metabolic disorders, lipoproteins, impaired glucose tolerance, and hypertension in PCOS patients, this study was done to determine the cardiovascular risk factors in first relative member of patients with polycystic ovarian syndrom in Shiraz, Iran. Materials and Methods: This case - control study was carried out on 107 parents and siblings of women with PCOS as cases and 107 non-PCOS parents and siblings of women as controls in Shiraz, Iran during 2007-08. Demographic characteristic, BMI, obesity and blood pressure were recorded for all subjects. Serum lipoproteins including total cholestrol, triglyceride, LDL, HDL and fasting blood sugar were measured in cases and controls. Data were analyzed using SPSS-16.5, independent t-test, Chi-Square and Kappa tests. Results: 35.3%, 26.5%, 11.76% and 5.8% of fatheres in cases were considered as overweight class I, class II, class III of obesity, respectively when compared to controls. This differecne was significant (P<0.05). Waist –hip ratio in mothers in cases (25.6%) and controls (17.9%) were higher than 0.85. Waist –hip ratio among the sisters in case and control groups were 23.5% and 17.6%, respectively (P<0.05). Hypertension was observed in 12.2% of cases and 3.7% of controls. This difference was not significant. High level of triglyceride were determined in 14.94% of cases and 6.5% of controls. A significant correlation was found between BMI and diabete II in case and control groups (P<0.05). Disorder in glucose tolerance test (GTT) in case and control goups were 19.62% and 7.47%, respectively (P<0.05). The obesity was found in 18.7%, 6.54% in cases and controls with disorder in GTT (P<0.05). Conclusion: This study showed that obesity, central obesity, high level of serum lipoproteins and hypertension among first relative member of patients with PCOS are significantly higher than the controls.

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Background and Objective: The risk of coronary heart disease (CHD) is proportional to the LDL-C lipoprotein. Due to frequent use of Friedwald formula in estimation of LDL-C in most laboratories, this study was done to compare the Friedwald formula and direct measurement to determine the serum levels of LDL-C Materials and Methods: This descriptive study was conducted on of 598 patients 226 male and 372 female whome referred to Imam Ali hospital Andimeshk cityin Khozestan province of Iran for health check up during 2009. 5 ml of the venous blood was drown. Total cholesterol (TC) (mg/dl), Triglyceride (TG) (mg/dl), HDL-C (mg/dl) and LDL-C (mg/dl) of serum are measured with Pars azmun company kits. The Friedwald formula was used for estimation of LDL-C. The K=3, 3.5 and 5 were used to stimate the lipid by Friedwald formula. Data were analyzed using SPSS-18, Pearson correlation coefficient and ANOVA tests. Results: A total of 598 serum samples collected 37.8% were men and 62.2% women. The mean age of participants was 38.8±10.77 years. Minimum age 21 years and maximum age was 77 years. Mean deviation for TG≤150, 201-300 and 301-400 in Friedwald formula (k=5) were -13.01±8.79, -17.11±13.17 and -18.63±18.54, respectively and with k=3 are -.39±12.04, -0.078±18.55 and 0.04±25.55 and for TG between 151-200 is -9.72±10.54 and with k=3.5 is equal to 0.82±13.70. Pearson correlation test showed that direct measurment and calculated from the equation Friedwald, for triglycerides in the area equal to or less than 150, 151-200, 201-300 and 301-400 mg/dl, with correlated to Pearson correlation coefficient were 0.982, 0.991, 0.991 and 0.975, respectively. Conclusion: This study showed that the direct measurement method is superior to the Friedwald equation, otherwise, equation Friedwald formula with K=3 is recommended.

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Background and Objective: Congenital malformations are among important causes of morbidity and mortality in newborns. This study was done to determine the prevalence and pattern of congenital malformations in newborn. Materials and Methods: This descriptive study was done on 6089 newborns in maternity center in Rafsanjan, Iran during 2007-08. The newborns were examined by pediatricians and based on clinical examination the type of obvious of either minor or major malformations were recorded. Results: The 179 cases had at least a major or minor malformations. Over all the prevalence of malformations was 2.93%. The highest prevalence of obvious malformations was seen in the musculo-skeletal (43.5%), followed by genitourinary (22.9%) and cardiovascular systems (15.08%). There was significant relation between congenital malformations, gestational age and medicine used by mothers (P<0.05). Conclusion: The highest prevalence of obvious malformations was seen in the musculo-skeletal system.

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Background and Objective: There are controversial reports about the effect of training on serum level of visfatin and TNF-α Cytokine .This study was done to evaluate the effect of 8 weeks of aerobic training on serum level of visfatin and TNF-α in non-athletic young women. Methods: In this quasi-experimental study, thirty non-athletic healthy women were non-randomly based on the weight, height, BMI index and body fat percentage divided into two control and training groups. In the training group 8 weeks of aerobic exercise on a stationary bicycle 3 times a week was performed. Serum level of visfatin and TNF-α was measured using ELISA method, prior and at the end of 8th week of training while the subjects were fasted for 12-14 hours. Results: At the end of 8 weeks of aerobic exercise, serum level of visfatin and TNF-α significantly reduced in the training group in comparison with controls (P<0.05). Conclusion: Eight weeks of aerobic training reduces visfatin and TNF-α serum level in non-athletic healthy women.

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Background and Objective: Respiratory failure is one of the most important respiratory problems in premature infants. Several studies have shown the efficacy of corticosteroids in gestational age less than 34 weeks. This study was done to determine the effect of prenatal betamethasone injection during 34 to 36 weeks of pregnancy on the prevention of newborn respiratory failure. Methods: This clinical trial study was conducted on 140 women with risk of preterm labor at 34 to 36 weeks of gestational age. Women in interventional group were received betamethasone 12 mg IM (2 doses, 12 hours apart). Women in control group were received the same volume of normal saline. Sex and birth weight, respiratory distress syndrome, requiring hospitalization in neonatal intensive care units and require respiratory support were recorded for each newborn. Results: No significant difference was seen in sex and weight of newborns between two groups. The precent of newborns with respiratory distress syndrome in the intervention and control groups was 12.5% and 22%, respectively. This difference was not significant. No significant difference was seen in the need to respiratory support, hospitalized in the NICU between intervention and control groups. Conclusion: Adminestration of betamethasone in 36-34 weeks of pregnancy has no effect on the prevention of respiratory failure in preterm infants.

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Background and Objective: New markers of cardiovascular disease have more sensitivity and accuracy in predicting cardiovascular events. Considering the effective role of physical activity in preventing and reducing cardiovascular disease, which will be of great help in improving the health of people in the community. This study was done to determine the effect of diving in different depths on the level of C-reactive protein (CRP) and lipid profiles of diver men.
Methods: This quasi-experimental study was carried out on 6 male diver members of the rescue and rescue team of the Red Crescent Society of Kohkiluyeh and Boyer Ahmad province in Iran. Subjects diverted on the first day at a depth of 1 meter, the second day at a depth of 10 meter, and the third day at a depth of 20 meter for 40 minutes. The subjects were at a depth of 10 and 20 meters at a height of 3 meters to the surface of the water for five-minute steepness. Blood samples were taken before and after diving, and CRP and lipid profiles including triglyceride, total cholesterol, low density lipoprotein and high density lipoprotein were measured.
Results: The increase of environmental stress caused by diving in three depths of 1, 10 and 20 meters of the sea  significantly increased CRP level (P<0.05). No significant changes were observed in the levels of triglyceride, total cholesterol, and low density lipoprotein, but high density lipoprotein level was significantly increased (P<0.05).
Conclusion: Scuba diving, due to the transport of respiratory equipment during activity increases
C-reactive protein and lipid profiles.

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Background and Objective: Prolonged hospitalization lead to considerable financial burden for patients as well as health care system. This study aimed to identifying important factors resulting in excess hospitalization days in patients undergoing abdominal surgeries using the multilevel zero-inflated Poisson regression model.
Methods: In this descriptive - analytic study, 485 patients from five teaching and private hospitals in Shiraz (southern Iran) were selected based on convince sampling method. Multilevel zero-inflated Poisson regression model was used to determine the risk factors of excess hospitalization day. Maximum likelihood method was used to estimate parameters of the model. Moreover, Akaike Information Criterion (AIC) and Bayes Information Criterion (BIC) indices were applied to assess the goodness of fit of the model.
Results: The primary analysis of data showed that 81.2% of the patients did not undergo excess hospitalization days. Based on findings, age, respiration rate, blood infusion, fever, smoking and drug abuse did not affect excess hospitalization days. In contrast, gender, renal diseases, operation history, laparoscopic gallbladder removal, prostate surgery and ileus significantly led to excess hospitalization days (P<0.05). Laparoscopic gallbladder removal, prostate surgery increased the chance of excess of hospitalization days to 4.64 and 9 times, respectively (P<0.05).
Conclusion: Geder, renal diseases, operation history, laparoscopic gallbladder removal, prostate surgery and ileus significantly led to excess hospitalization days.

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Atherosclerosis which is the result of cholesterol deposit in coronary arteries is the main cause of morbidity and mortality, worldwide. Reverse cholesterol transport (RCT) is a process that causes efflux of excess cholesterol in vessels layers and reduces the risk of atherosclerosis. Adenosine triphosphate (ATP) binding cassette transporters G5 and G8 (ABCG5 and ABCG8) are two membrane cholesterol transporters in hepatocytes and enterocytes that transport cholesterol into the bile and feces. Considering importance of ABCG5 and ABCG8 in RCT and prevention and treatment of coronary atherosclerosis, the aim of this review article was to study the ABCG5 and ABCG8 functions, the role of them in heart stroke prevention and the effects of exercise trainings on genes expression of these two substances. Atherosclerosis, exercise, physical activity, RCT, ABCG5 and ABCG8 were used keywords for searching of related articles between years 1990 to 2018 in google scholar, PubMed, Elsevier, Scopus, SID, science direct and ProQuest databases. 294 articles were found and after precise reading of them, 84 articles were selected for this review article. Overall, considering role of transcription factors LXR/RXR are responsible for regulation of genes involved in cholesterol efflux (ABCA1, ABCG1), cholesterol transport (lipoprotein lipase, CETP), cholesterol transformation to bile acids (CYP7A) and metabolism and excretion of cholesterol into bile or gut lumen, stimulation of them induces elevation of ABCG5 and ABCG8 genes expression. The effect of exercise on these factors is a novel subject that may increase our knowledge to prevention and treatment of atherosclerosis.

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Background and Objective: Celiac disease is a malabsorption disorder that could result in various psychological consequences if patients do not adhere to a gluten-free diet. This study aimed to determine the frequency of major depressive disorder and its relationship with adherence to a gluten-free diet among patients with celiac disease.
Methods: This descriptive-analytical study was conducted on 47 patients with celiac disease (30 women and 17 men) with an average age of 40.88 ± 10.7 years who had been referred to the Golestan Research Center of Gastroenterology and Hepatology during the summer of 2019. Patients were invited to complete a 13-item Beck Inventory. Celiac Dietary Adherence Test (CDAT) was used to assess adherence from the patients' point of view, and Standardized Dietician Evaluation (SDE) was used to evaluate adherence to the diet from the interviewer's perspective.
Results: Overall, 28 people (59.6%) with celiac disease reported some degree of depression. Based on the SDE, the adherence rate of patients to a gluten-free diet was 83%. The association between adherence to a gluten-free diet and the prevalence of depression was not significant. There was also no significant association between the prevalence of depression and the gender and age of patients.
Conclusion: Based on the results, a high percentage of patients with celiac disease have symptoms of depression. However, there is no significant relationship between adherence to a gluten-free diet and the prevalence of depression.
 

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Background and Objective: Colorectal cancer is the third most common cancer in men and the second most common in women. The use of parasites or parasite antigens is one of the newest therapeutic approaches for cancer, although it has not yet been used or approved in human trials. This study aimed to determine the cytotoxic effects of purified carbohydrates from the hyaline layer, fluid, and protoscolices of hydatid cysts on the human colorectal cancer cell line (LS174T).
Methods: This descriptive-analytical study was conducted on two sheep and two cow livers infected with hydatid cysts, and the human colorectal adenocarcinoma cell line (LS174T) purchased from the Pasteur Institute of Iran at the Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Iran during 2022. Cyst fluid, protoscolices, and the hyaline layer were isolated from the hydatid cyst-infected livers, and glycoproteins and glycolipids from different parts of the cyst were extracted using the chloroform-methanol method. Carbohydrates were purified using the beta-elimination method and their presence was confirmed using the phenol-sulfuric acid method. The cytotoxicity of purified carbohydrates on the LS174T cell line was evaluated using the methyl tetrazolium (MTT) assay for 24 hours.
Results: Concentrations of 0.5 and 0.25 of purified carbohydrates from glycoproteins and glycolipids of hydatid cysts significantly inhibited the growth of LS174T cells (P<0.05). Initial cytotoxicity evaluation showed that purified carbohydrates from glycoproteins of sheep cyst fluid (38.60±1.33%), glycoproteins of cow cyst hyaline layer (36.61±1.76%), glycolipids of cow cyst hyaline layer (38.94±2.99%), glycoproteins of cow cyst protoscolices (40.27±3.66%), and glycolipids of sheep cyst protoscolices (37.94±1.99%) had significantly more pronounced inhibitory effects (P<0.05). Subsequent screening with the MTT assay revealed that purified carbohydrates from glycoproteins isolated from sheep hydatid cyst fluid (52.35±10.24%), glycolipids isolated from cow hydatid cyst hyaline layer (53.40±7.88%), and glycolipids isolated from sheep hydatid cyst protoscolices (53.05±5.06%) had significantly more pronounced inhibitory effects on the growth of LS174T cancer cells (P<0.05).
Conclusion: Carbohydrates isolated from glycoproteins and glycolipids of the hyaline layer, fluid, and protoscolices of hydatid cysts have significant anticancer effects on the LS174T colorectal cancer cell line.