Showing 105 results for Abbas
Morteza Noaparast , Seyyed Faramarrz Karimian , Seyyed Rasul Mirsharifi , Abbas Rabbani , Farnoosh Vaezi ,
Volume 71, Issue 4 (July 2013)
Abstract
Background: The purpose of this study was evaluation of risk factors of peripheral artery disease (PAD) and effective markers on it.
Methods: This descriptive-analytical study was done during 2010-2011 in the surgical units of Khorramabad Shohada Hospital. Fifty patients who had symptoms of PAD undergoing CT angiography and biochemical markers for them were measured. The investigated variables were family history, site of arterial obstruction, underlying diseases, smoking history, physical activity and stress level. A control group was considered for the study. The comparison was made between these two groups.
Results: Aging showed a significant role in prediction of PAD (70% sensitivity and 64% specificity). Homocysteine had the highest sensitivity (80%) in prediction of PAD, compared with other biomarkers. CRP (74% sensitivity) was the best marker that had positive predictive value for PAD. Fasting blood sugar (FBS) showed a significant role in prediction of true positive cases of PAD (72% sensitivity and 74% specificity). HbA1C with 68% sensitivity and 64% specificity and TG with 50% sensitivity and 44% specificity could be considered as factors related with PAD.
Conclusion: The levels of C-Reacative protein, homocysteine, and FBS were correlated with PAD, HbA1C and TG levels were associated with PAD, but lower than the previously named markers. In this study a significant relationship between lipoprotein levels and PAD was also observed. PAD was associated with sex and age.
Marjan Rismanchi , Pooneh Mokarram , Mahvash Alizadeh Naeeni , Mahdi Paryan , Zohreh Honardar , Soudabeh Kavousipour , Abbas Alipour ,
Volume 71, Issue 12 (March 2014)
Abstract
Background: Colorectal Cancer (CRC) is the third common cancer in the world. One of the pathways in colorectal tumor genesis is Microsatellite Instability (MSI+). MSI is detected in about 15% of all colorectal cancers. Colorectal tumors with MSI have dis-tinctive features compared with Microsatellite Stable (MSS) tumors. Due to the high percentage of MSI+ in patients with CRC in Iran, screening of this type of CRC is im-perative. In current study, two markers (BAT-26 and BAT-25) were used to determine an appropriate screening technique with high sensitivity and specificity to diagnose MSI status in patients with CRC.
Methods: Allelic variation in two markers (BAT-26 and BAT-25) was analyzed in tis-sues and sera of 44 normal volunteers and tumor and matched normal mucosal tissues as well as sera of 44 patients with sporadic colorectal cancer by Real Time PCR (Hy-bridization probe) and High-Performance Liquid Chromatography (HPLC) techniques. The sensitivity and specificity of Real Time PCR and HPLC compared with sequencing as gold standard. The data were statistically analyzed using Student’s t-test and 2 or fisher exact test, where applicable with (P<0.05). Receiver-operating-characteristic (ROC) curves were used to evaluate the sensitivity and specificity.
Results: The sensitivity and specificity of BAT-26 with Real Time PCR method (Hy-bridization probe) were 100% in comparison with gold standard method. Whereas the sensitivity and specificity of BAT-26 and BAT-25 with HPLC were 83%, 100% and 50%, 97%, respectively. Neither HPLC nor Real time PCR could detect circulating DNA with MSI property in sera.
Conclusion: The sensitivity and specificity of real time PCR in MSI detection is the same as sequencing method and more than HPLC. BAT-26 marker is more sensitive than BAT-25 and MSI detection with Real time PCR could be considered as an accu-rate method to diagnose MSI in CRC tissues not sera.
Roghayyeh Borji , Mohammad Reza Khatami, Mohammad Reza Abbasi , Alipasha Meysamie , Khosro Barkhordari , Farah Ayatollah Esfahani, Mina Pashang, Laleh Ghadirian ,
Volume 71, Issue 12 (March 2014)
Abstract
Background: The mortality due to Coronary Artery Bypass Graft (CABG) in patients with chronic renal failure is more common than normal population. This study evalu-ates the impacts of prophylactic dialysis on decreasing mortality and morbidity of non- dialysis-dependent patients with renal failure after CABG surgery.
Methods: In this study, fifty non-dialysis-dependent patients who were suffering from renal failure and needed to CABG, were selected by convenience sampling method. Se-quentially, they were allocated to prophylactic dialysis (n=20) and no prophylactic dialysis (n=30) groups, using a randomized block design. Exclusion criteria were under 18 year old patients and doing CABG for second time. Mortality rate and some complications such as acute renal failure, brain accident and atrial arrhythmias were compared between two groups after CABG. All cardiac surgeries were performed in a single centre and through a median sternotomy. P value less than 0.05 was considered as significant.
Results: The mean age of patients was (65.3±9.9). The patients included %16 (n.8) of women and %84 (n.42) of men. There were 20 patients in intervention and 30 patients in control groups. Baseline characteristics were similar in two groups. Comparison be-tween intervention and control groups after surgery did not show any difference in mortality (P=0.14), acute renal failure (P=0.4), cerebrovascular accidents (P=1) and atrial arrhythmias (P=0.3), need to second surgery due to bleeding (P=1), need to dialysis (P=0.14), need to rehospitalization (P=1), duration of ventilator use (P=0.4), duration of need to hospitalization (P=0.11), duration of a patients stay in the Intensive Care Unit (P=0.4) and deep sternal infection (P=0.7) rates.
Conclusion: According the results of this study, prophylactic dialysis, before conduct-ing CABG, does not have any significant effect on mortality and other complications. The only exception is lung complications in non-dialysis-dependent patients with renal failure.
Mahboobeh Haji-Abdolbaghi , Mehrnaz Rasoolinejad , Laden Abbasian , Aliakbar Amir Zargar, Hamid Emadi Koochak, Pardis Moradnejad, Naseh Mohammadi , Ali Pashae Zanjani , Saeed Bayanolhagh , Parisa Sadr Poor,
Volume 72, Issue 1 (April 2014)
Abstract
Background: Abacavir is an anti-retroviral medication used to treat HIV infected/AIDS patients and its efficacy has been proven in randomized clinical trials. The most significant adverse reaction associated with abacavir is the acute hypersensitivity phenomenon which manifests in many forms and in severe cases could result in death. Hypersensitivity reaction to abacavir has been closely linked to the presence of HLA-B*57:01 allele. Avoidance of abacavir initiation in allele-positive patients is the most effective strategy in preventing possible severe hypersensitivity reactions. Previous epidemiologic studies have made great strides toward delineating HLA-B*57:01 allele frequency in different regions of the World and the available results indicate significant discrepancy between geographical regions. Despite these efforts, no study to date has determined the allele frequency among Iranian HIV-positive patients. The aim of the present study was to determine the proportion of allele-positive patients among a group of Iranian HIV-infected patients.
Methods: Between September 2012 and February 2013, 122 HIV-positive patients were selected among patients referred to Imam Khomeini Hospital’s Consultation cen-ter for high risk behaviors using the convenience sampling method. Sampling scheme was designed in a manner to include equal number of infected patients with and without clinical Acquired Immunodeficiency Syndrome (AIDS). Patient data was collected using available records and a blood sample for DNA analysis was also obtained. Presence of HLA-B*57:01 allele was determined using the Polymerase Chain Reaction- Sequence Specific Method (PCR-SSP).
Results: Seventy three patients (59.8%) were male. Co-infection with hepatitis B and C was observed in 1.7% and 40.7% of the patients, respectively. History of addiction and anti-retroviral therapy was positive in 50.0% and 60.7% of the patients, respectively. Overall, three patients were allele-positive which corresponds to a frequency of 2.46% (95% CI: 0.005-7.30). No association between presence of allele and investigated vari-ables were identified.
Conclusion: Frequency of HLA-B*57:01 allele among a group of Iranian HIV-infected patients is estimated to be 2.5%. This rate is comparable to those reported in other Middle-Eastern countries, yet is relatively lower than reports generated from South-Eastern Asia, Europe, and the United States. Future studies with larger sample sizes are needed to corroborate these findings.
Mohammad Mehdi Soltan Dallal, Celin Telefian , Massoud Hajia , Enayat Kalantar , Ali Reza Dolatyar Dehkhar-Ghani, Abbas Rahimi Forushani Rahimi Forushani , Qamartaj Khanbabaei , Mandana Mobarhan , Marjan Farzami ,
Volume 72, Issue 2 (May 2014)
Abstract
Background: Complex of Burkholderia cepacia is one of the main and serious causes of infections in cystic fibrosis patients that can be highly transmissible. Small hospital outbreaks are frequent and are usually due to a single contaminated environmental source. The pulsed-field gel electrophoresis (PFGE) is widely used to identify the strain emission sources in cystic fibrosis patients. The aim of this research was to study genotyping of Burkholderia cepacia using PFGE method, and to evaluate diversity complex of clinical strains isolated from cystic fibrosis patients.
Methods: This is a descriptive study, in which 100 pulmonary secretion specimens of cystic fibrosis patients admitted in Masih Daneshvari Hospital, Tehran Iran in period of 12 months 2012 to 2013 were collected. The specimens were cultured on BCSA plate’s. After incubation suspected colonies were isolated and identified by biochemical and phenotypic method. All samples were checked by API system (API20NE) and by specific PCR method for genus Bulkhorderia and Bcc as well. DNA was extracted by alkaline lysis method and confirmed by PCR analysis of recA genes. Genetic diversity of isolate was performed by PFGE analysis according to Pulsenet guideline by using XbaI, SpeI as restriction enzyme which digests infrequently among the Burkholderia cepacia genome.
Results: Out of 100 samples five were identified as Burkholderia cepacia. It is obviously different at variously reports. The electrophoresis data of PCR products and comparison of band in samples from patients with standard strain ATCC 25416 Burkholderia cepacia and compare and analyse the PFGE size marker bands of Salmonella choleransuis serotype Braenderup H9812 strain, were the same.
Conclusion: Application of PFGE and identification of pulse-type is a potential tool to enhance the investigation of apparent nosocomial outbreaks of B.cepacia. Similar type of pulse patterns was observed in this study means that all of infection has been from one source therefore the hypothesis of transferring person to person will be rejected. Base on these results environmental sources sampling should be considered in future investigation.
Mohammad Abbasinazari , Afshin Mohammad Alizadeh , Yusef Jamshidi,
Volume 72, Issue 3 (June 2014)
Abstract
Background: Judicious use of antibiotics is essential considering the growth of antimi-crobial resistance and escalating costs in health care. Ceftriaxone is a third-generation cephalosporin used widely for the treatment of various infections in outpatient and in-patient. The purpose of this study was to evaluate the ceftriaxone utilization before and after implementation of guidelines and physicians education.
Methods: A descriptive cross-sectional, before-after intervention study was performed in 6 wards of a teaching hospital in Tehran, Iran. The study was conducted in three phases: pre-guideline, educational interventions and post guideline implementation. The pre intervention phase included chart analysis of current ceftriaxone use in 200 consecutive patients from the representative wards included in the study. The educational interventions included preparation and distribution of ceftriaxone guidelines as pamphlets among physicians working in the studied wards. Also the clinical pharmacist returned to each ward and trained physicians regarding the correct use of ceftriaxone. In the post intervention phase immediately after the instruction, and in the follow up phase, one month later, a prospective analysis of ceftriaxone utilization was performed by chart review of 200 patients to detect changes in ceftriaxone utilization pattern.
Results: Four hundred cases were evaluated during study (200 before and 200 after physician’s education). The correct indication of ceftriaxone was 93% and 96% before and after the educational interventions respectively. Analysis showed that correct indi-cation of ceftriaxone did not change significantly before and after education (P= 0.188). Regarding to proper administration (dose, interval and duration) ceftriaxone utilization significantly changed after education (P< 0.001).
Conclusion: Adoption of the guidelines with associated training resulted in significant improvement in ceftriaxone administration pattern in the hospitals.
Salva Sadat Mostafavi Dehraisi , Seyed Mehdi Sadat, Fatemeh Davari Tanha , Mohammad Reza Aghasadeghi Aghasadeghi, Mahdi Safarpour , Parinaz Abbasi Ranjbar, Ahmad Ebrahimi ,
Volume 72, Issue 8 (November 2014)
Abstract
Background: Uterine leiomyoma is one of the most common benign smooth muscle tumors occurring in 20-40% of women worldwide in their reproductive years. Recent studies revealed that estrogen plays an important role in the pathogenesis of this disease. Since glutathione S-transferase (GST) gene family are involved in the biosynthesis of estrogen, the prior probability that variants at this locus are associated with uterine leiomyoma is likely to be above the null. Therefore, this study was carried out to examine whether GSTP1 polymorphism (Ile105Val) is associated with increased risk of uterine leiomyoma in Iranian population.
Methods: In this case-control study, 50 women diagnosed with uterine leiomyoma and 50 healthy controls were recruited from subjects referred to the Pasteur Institute of Iran from November 2012 to September 2013. The genomic DNA was extracted from peripheral blood leucocytes using the standard phenol-chloroform method and subsequently the GSTP1 polymorphism was genotyped using amplification refractory mutation system-polymerase chain reaction (ARMS-PCR). Logistic regression analysis was applied to estimate odds ratios and 95% confidence intervals after age adjustment using the SPSS statistical software package, version 18.0.
Results: The results showed significant differences between case and control groups in terms of genotype frequency (P<0.0001). In addition, the results indicated that the presence of the valine allele significantly increased risk of uterine leiomyoma about three times more in individuals carrying the mutant allele compared to control group (Odds Ratio: 3.34 95%CI: 1.82-6.15 P<0.0001).
Conclusion: To our knowledge, this is the first study performed in Iranian population assessing the association between GSTP1 Ile105Val polymorphism and risk of uterine leiomyoma. However, further extensive studies with a large number of samples from different populations and ethnicities are required to validate the results obtained in this study.
Reza Yazdani , Mazdak Ganjalikhani Hakemi, Roya Sherkat , Abbas Rezaei , Rahim Farahani , Behrouz Beiranvand ,
Volume 72, Issue 9 (December 2014)
Abstract
Background: Asthma as an airway disease is identified by increase network respon-siveness of the trachea and bronchus to a specific stimulus. Th17 cells through produc-tion of IL-17 have important role in inflammation and autoimmune diseases .In some studies has been shown which IL-17 as major cytokine of Th17 probably has im-portant role in the pathogenesis of allergy and asthma.
Methods: Total mRNA extracted from whole blood samples and sputum of 23 asthma patients and 23 normal controls. Then, total RNA was converted into cDNA according to the manufacturer’s instructions. Finally, the transcript levels of IL-17 were quanti-fied by the real-time quantitative PCR. Twenty-three patients with asthma were diag-nosed and selected according to the global initiative for asthma (GINA) and none of the patients had taken the medication at least three week before sampling. Healthy in-dividuals did not have any history of allergy, asthma and other inflammatory diseases at the time of sampling. All of experiments have done in Isfahan University of Medical Sciences, Iran during May to February, 2013.
Results: This study showed a significant increase in transcript levels of IL-17 in the blood (287±79 versus 1/18±0/13) and sputum samples of the patients (64±28 versus 0/9±0/1) in comparison with normal individuals (P= 0.000, P= 0.029 respectively). It al-so revealed that the expression levels of the cytokines in the serum samples of the asthmatics were significantly more than their levels in patient’s sputum samples (P= 0.000). However, there was no significant difference between the cytokines expression levels in serum samples and sputum samples of the controls (P> 0.05).
Conclusion: In this study, we showed which the expression of IL-17 was increased in serum and sputum of asthmatic patients compared to healthy controls, this could re-sult in elevation of neutrophils population and activation of pulmonary neutrophil.
Ghodratolah Maddah , Hossein Shabahang , Mohammad Reza Barband , Abbas Abdollahi , Alireza Tavassoli ,
Volume 72, Issue 9 (December 2014)
Abstract
Background: This study aims to evaluate the outcomes and late complications of open Roux-en-Y gastric bypass surgery in the treatment of morbid obesity.
Methods: Over a 15 year-period between May 1997 and May 2012, we reviewed our experiments with 39 patients who underwent open gastric bypass for morbid obesity. The weight of the patient and surgical complications were recorded. Ideal weight, body mass index, weight loss and excess weight loss were calculated.
Results: The follow up period ranged from 6 to 180 months with a mean of 100 months after operation. Average weight loss was 3.9 and 0.28 kg per month during the first and second years after operation weight loss was slower from the third year on-wards. Weight loss generally was stabilized between 12 and 18 months after operation. Only one patient (2.6%) had a weight loss failure criterion. Concomitant condition ex-isted in 14 patients (48.2%) of our series. These included hypertension in 3 cases (10.3%) that was resolved in 100%, diabetes mellitus in 4 (13.7%) that was resolved in 75%, cholelithiasis in 7 cases (24.1%) that was resolved by cholecystectomy during the operation. There was no early postoperative death. Early complications occurred in 2 patients (5.1%), including pulmonary embolism (2.6%) and gastrointestinal bleeding (2.6%). The late complications occurred in 7 patients (17.9%) involved 2 patients with anastomotic stricture at the gastrojejunostomy (5.1%), One patient with symptomatic cholelithiasis (2.6%), three patient with anemia (7.7%), and one patient had Wernicke ’s disease who died of this complication (2.6%).
Conclusion: The results of the study showed that the open Roux-en-Y gastric bypass surgery is an effective procedure in the treatment of morbid obesity with minimal late complications.
Mohammad Mehdi Soltan Dallal , Samaneh Motalebi Motalebi , Hossein Masoumi Asl , Abbas Rahimi Forushani , Mohammad Kazem Sharifi Yazdi, Zahra Rajabi , Nooshin Aghili ,
Volume 72, Issue 11 (February 2015)
Abstract
Background: Diarrhea is the most common bacterial infections, and the main cause of death in the children. Worldwide, food and waterborne diseases are estimated to cause more than two million deaths per year. Foodborne diseases and resistance to antimicrobial agents are two problems worldwide and are increasing. However, standard surveillance systems do not routinely collect information on controls. The aim of this study was to analysis epidemiological data of foodborne outbreaks at the country level.
Methods: This is a descriptive study, in total 305 fecal swab samples from 73 outbreaks during one year from April 2012 to March 2013 in different provinces of Iran, were collected and transferred to the microbiology laboratory of Public Health School of Tehran University of Medical Sciences to identify the cause’s diarrhea. The patterns of antibiotic-resistance were determined by using Kirby Bauer method.
Results: In total 73 food borne outbreaks that were studied, the largest number 26 (35.6%) were found in Hamadan province with 103 samples (34.2%). Out of 73 outbreaks 40 (54.79%) of were related to foods, 6 (8.22%) to water, and 27 (36.98%) were unspecified (P< 0.0001). Fifty seven outbreaks (78.08%) in the city and 16 outbreaks (21.92%) occurred in rural areas (P< 0.0001). The most dominated Gram-negative isolated organisms were Shigella (6.9%) and Gram-positive bacteria Staphylococcus aureus (12.8%). The dominated age group was under five years (16.4%), and dominant gender group was men 186 (61.8%) (P< 0.0001). In total 69 (22.9%) were hospitalized and 11 deaths were reported. Most clinical symptoms of abdominal cramping (82%), nausea and vomiting (68.4%), bloody diarrhea (23.3%), and non-bloody diarrhea (76.7%). All the isolated gram-negative were sensitive to ciprofloxacin and resistant to clindamycin. The gram-positive were sensitive to cephalexin and resistant to penicillin.
Conclusion: The knowledge of bacterial agent of foodborne diseases and determination of antimicrobial resistance pattern are helpful to reduce the rate of foodborne outbreaks, the cost of treatment. The prevention control of outbreaks is also very important.
Firoozeh Raisi , Habibollah Ghassemzadeh , Alipasha Meysami , Reihaneh Firoozikhojastefar , Narges Karamghadiri , Maryam Sorayani , Abbas Ali Nasehi, Jalil Fallah, Narges Ebrahimkhani ,
Volume 73, Issue 2 (May 2015)
Abstract
Background: Although sexual dysfunction is a common problem in patients with obsessive-compulsive disorder (OCD), there are sparse clinical research on the study of the correlation between OCD subtypes and different phases of sexual response cycle. This study was undertaken to assess sexual function and its different phases in a group of Iranian patients with OCD. Methods: This was a descriptive cross-sectional study. The subjects consisted of 56 married OCD patients (36 female, 20 male) who suffered from OCD according to a psychiatric interview and DSM-IV questionnaire based on structured clinical interview for DSM (SCID). Patients were between 18 to 50 year age that had been referred to the outpatient clinic of Roozbeh Psychiatric Hospital and three private psychiatric clinics in Tehran (from September 2011 to February 2013). Five Questionnaires were used in this study: Iranian validated form of Female Sexual Function Index (FSFI), International Index of Erectile Function (IIEF), Maudsley Obsessional Compulsive Inventory (MOCI), Obsessive Compulsive Inventory-Revised (OCI-R) and a questionnaire which has provided demographic data and other relevant information regarding sexual function and OCD. Results: The prevalence of sexual dysfunction among female was 80.6% and the frequency of disorders in different subscales of FSFI including sexual desire, sexual arousal, lubrication, orgasm, satisfaction and sexual pain were 50%, 58.3%, 36.1%, 44.4%, 41.7% and 52.8% respectively. Sexual disorder is reported in 25% of male OCD patients which subscales' evaluation of IIEF shows low sexual desire in 10%, erectile disorder in 20%, orgasmic disorder in 25%, sexual dissatisfaction in 40% and 50% decreased in the total sore of IIEF. Moreover, the correlation coefficients between the total score of OCI-R with erectile and satisfaction subscales of IIEF were statistically significant. The score of washing subscale in OCI-R and sexual satisfaction was significantly correlated. Conclusion: High prevalence of sexual dysfunction in OCD women and significant correlation between male sexual dysfunction and OCD (r= -481.0 between total score of OCI-R with erectile dysfunction and r= -458.0 between total score of OCI-R and sexual satisfaction) could confirm a relation between OCD and sexual disorders. So, evaluation of sexual function in all patients with OCD is recommended.
Mahmoud Akbarian , Khadijeh Paydar, Sharareh R Ostam Niakan Kalhori , Abbas Sheikhtaheri ,
Volume 73, Issue 4 (July 2015)
Abstract
Background: Pregnancy in women with systemic lupus erythematosus (SLE) is still introduced as a major challenge. Consulting before pregnancy in these patients is essential in order to estimating the risk of undesirable maternal and fetal outcomes by using appropriate information. The purpose of this study was to develop an artificial neural network for prediction of pregnancy outcomes including spontaneous abortion and live birth in SLE.
Methods: In a retrospective study, forty-five variables were identified as effective factors for prediction of pregnancy outcomes in systemic lupus erythematosus. Data of 104 pregnancies in women with systemic lupus erythematosus in Shariati Hospital and 45 pregnancies in a private specialized center in Tehran from 1982 to 2014 in August and September, 2014 were collected and analyzed. For feature selection, information of the 149 pregnancies was analyzed with a binary logistic regression model in SPSS software, version 20 (SPSS, Inc., Chicago, IL, USA). These selected variables were used for inputs of neural networks in MATLAB software, version R2013b (MathWorks Inc., Natick, MA, USA). A Multi-Layer Perceptron (MLP) network with scaled conjugate gradient (trainscg) back propagation learning algorithm has been designed and evaluated for this purpose. We used confusion matrix for evaluation. The accuracy, sensitivity and specificity were calculated from the confusion matrix.
Results: Twelve features with P<0.05 and four features with P<0.1 were identified by using binary logistic regression as effective features. These sixteen features were used as input variables in artificial neural networks. The accuracy, sensitivity and specificity of the test data for the MLP network were 90.9%, 80.0%, and 94.1% respectively and for the total data were 97.3%, 93.5%, and 99.0% respectively.
Conclusion: According to the results, we concluded that feed-forward Multi-Layer Perceptron (MLP) neural network with scaled conjugate gradient (trainscg) back propagation learning algorithm can help physicians to predict the pregnancy outcomes (spontaneous abortion and live birth) among pregnant women with lupus by using identified effective variables.
Malihea Khaleghian , Issa Jahanzad , Abbas Shakoori , Neda Zargari, Maryam Mohamadi , Cyrus Azimi ,
Volume 73, Issue 4 (July 2015)
Abstract
Background: The incidence rate of gastric cancer in Western countries has shown a remarkable decline in recent years although it is still the almost common cancer between men in Iran. The proto-oncogene MYC, located at 8q24.1, regulates almost 15% of human genes and is activated in 20% of all tumors. MYC amplification and overexpression of its protein product are observed in 15-30% of gastric neoplasia. The objective of this study was to find the preference of CISH or IHC in the diagnosis and prognosis of gastric cancer.
Methods: In this cross-sectional investigation, 102 paraffin blocks samples of Iranian patients with gastric cancers were studied. All the patients had undergone primary surgical resection at the Cancer Institute Hospital, Tehran University of Medical Sciences from 1987 to 1993. CISH and IHC techniques were applied to the samples. CISH was carried out on 3-µm-thick tissue sections and with a ZytoDot CISH Implementation Kit (ZytoVision GmbH, Germany). IHC was down using the HRP method with the monoclonal antibody. A universal peroxidase-conjugated secondary antibody kit was used for the detection system. All samples were gastric adenocarcinoma and were selected randomly.
Results: Our data revealed that both diffuse and intestinal types of gastric cancer occurred significantly in men more than women. Our results showed an indication of some correlation between grades and CISH results, although the difference was not significant. Our data also showed that CISH+ patients (43.1%) were more frequent in comparison with IHC+ patients (14.7%). There was a correlation between CISH and IHC. This result revealed that there was a significant difference between grades and IHC. There was also no statistically significant difference between CISH amplification in diffuse and intestinal types.
Conclusion: Our conclusion is that for the treatment, management of stomach cancer, and monitoring of progress and prognosis of the tumor that is almost important for patients and clinicians, CISH test is a better and feasible to IHC test, with regards to sensitivity and specificity.
Reza Habibian , Nowruz Delirezh , Amir Abbas Farshid ,
Volume 73, Issue 5 (August 2015)
Abstract
Background: Allergic Asthma is an inflammatory disease of the respiratory system that is well known by increased inflammatory cells in the airways and causes difficulty in respiration. The prevalence of allergic asthma is increasing worldwide, and it has become a significant cause of health challenge especially in developed countries. Inhaled β2-agonists and Inhaled or oral corticosteroids are common medications for treating the disease, but they cannot be used for long periods of time because of frequently occurring side effects and they can’t change the main pathogenesis of the problem. Deficiency in regulatory system against inflammation could be an important factor in allergic asthma. Mesenchymal stem cells (MSCs) have potential of cellular immunosuppressive therapy of inflammatory disorders. The aim of present study was to evaluate the effects of MSC therapy on mechanisms of allergic asthma in mice model.
Methods: This experimental study was conducted from August 2014 to March 2015. The animals were housed and maintained in Biotechnology Center of Urmia University, Iran. Mice were sensitized by intra-peritoneal injection of ovalbumin (OVA) and aluminum hydroxide emulsion and then were challenged intra-nasally with OVA. Before allergen challenge on day 14, experimental mice received tail vein injection of MSCs in PBS. Regulatory T cells of spleen, cytokines and IgE analysis were carried out using lungs wash as well as serum samples.
Results: Our results showed that MSCs significantly reduced total cells and eosinophilia, serum OVA-specific IgE concentration in OVA-sensitized and challenged mice. Also results showed that MSCs markedly inhibited expressions of Th2 cytokines and elevated levels of Treg cells and Treg cytokines.
Conclusion: In the present study, we demonstrated the inhibitory effect of MSCs on airway inflammation using mice model of allergic asthma. The mice were sensitized with OVA and compared to the results of dexamethasone administration. Our results demonstrated that administration of MSCs could be used as a potential therapeutic approach for the allergic asthma.
Saba Garshasbi , Dariush Salimi , Abbas Doosti ,
Volume 73, Issue 7 (October 2015)
Abstract
Background: Cancer and obesity are two major public health concerns. More than 12 million cases of cancer are reported annually. Many reports confirmed obesity as a risk factor for cancer. The molecular relationship between obesity and breast cancer has not been clear yet. The purpose of this study was to investigate priorities of effective genes in the molecular relationship between obesity and breast cancer. Methods: In this study, computer simulation method was used for prioritizing the genes that involved in the molecular links between obesity and breast cancer in laboratory of systems biology and bioinformatics (LBB), Tehran University, Tehran, Iran, from March to July 2014. In this study, ENDEAVOUR software was used for prioritizing the genes and integrating multiple data sources was used for data analysis. Training genes were selected from effective genes in obesity and/or breast cancer. Two groups of candidate genes were selected. The first group was included the existential genes in 5 common region chromosomes (between obesity and breast cancer) and the second group was included the results of genes microarray data analysis of research Creighton, et al (In 2012 on patients with breast cancer). The microarray data were analyzed with GER2 software (R online software on GEO website). Finally, both training and candidate genes were entered in ENDEAVOUR software package. Results: The candidate genes were prioritized to four style and five genes in ten of the first priorities were repeated twice. In other word, the outcome of prioritizing of 72 genes (Product of microarray data analysis) and genes of 5 common chromosome regions (Between obesity and breast cancer) showed, 5 genes (TNFRSF10B, F2, IGFALS, NTRK3 and HSP90B1) were the priorities in the molecular connection between obesity and breast cancer. Conclusion: There are some common genes between breast cancer and obesity. So, molecular relationship is confirmed. In this study the possible effect of gene F2 polymorphism in making breast cancer associated with obesity risk factor was confirmed, the fact that past studies have not been reported.
Bahareh Abbasi , Peyman Hafezimoghadam , Naffiseh Ansari Nejad, Maryam Sarvari , Tayeb Ramim,
Volume 73, Issue 8 (November 2015)
Abstract
Background: Tramadol is a synthetic drug which is prescribed in moderate and severe pain. Tramadol overdose can induce severe complications such as consciousness impairment and convulsions. This study was done to determine the convulsions incidence after tramadol use until one week after hospital discharge. Methods: This prospective study was done in tramadol overdose patients without uncontrolled epilepsy and head injury history. All cases admitted in Loghman and Rasol Akram Hospitals, Tehran, Iran from 1, April 2011 to 1, April 2012 were included and observed for at least 12 hours. Time interval between tramadol intake and first seizure were record. Then, patients with second drug-induced seizure were recognized and log time between the first and second seizure was analyzed. The patients were transferred to the intensive care unit (ICU) if clinical worsening status observed. One week after hospital discharge, telephone follow-up was conducted. Results: A total of 150 patients with a history of tramadol induced seizures (141 men, 9 women, age: 23.23±5.94 years) were enrolled in this study. Convulsion was seen in 104 patients (69.3%). In 8 out of 104 patients (7.6%) two or more convulsion was seen. Time interval between tramadol use and the onset of the first and second seizure were 0.93±0.17 and 2.5±0.75 hours, respectively. Tramadol induced seizures are more likely to occur in males and patients with a history of drug abuse. Finally, one hundred forty nine patients (99.3%) were discharged with good condition and the only one patient died from tramadol overdose. Conclusion: The results of the study showed tramadol induced seizure most frequently occurred within the first 4 hours of tramadol intake. The chance of experiencing a second seizure exists in the susceptible population. Thus, 4 hours after drug intake is the best time for patients to be hospital discharged.
Abbasali Imani Fooladi , Elnaz Parvizi , Mohammadjavad Soltanpour , Ali Ahmadi ,
Volume 73, Issue 9 (December 2015)
Abstract
Background: Bacterial pneumonia is one of the most common causes of morbidity and mortality, and accurate diagnosis and treatment of the pneumonia causative agent, especially in polybacterial cases, is difficult and much appreciated. The aim of this study was to determine the causative agents and antimicrobial susceptibility of polybacterial pneumonia in patients with lower respiratory tract infections.Methods: In this retrospective cross-sectional study, 167 cases with symptoms of lower respiratory tract infection (LRTI), admitted since March 2010 to March 2013 to Baqiyatallah Hospital, Tehran, were studied. Bronchoalveolar lavage (BAL) samples have been obtained from all these patients and have been investigated for the presence of bacterial causative agent, presence of polybacterial pattern of the infection, and the pattern of antimicrobial susceptibility testing by disc diffusion method. Also, the samples have been studied for the presence of Mycobacterium tuberculosis through culture of specific media, separately.Results: From 167 patients (62 women and 105 men), 90 cases were positive for the presence of bacterial pathogens while 77 cases were negative by culture. The incidence of bacterial pneumonia was not statistically different between men and women. Totally 117 bacterial isolates were obtained belonging to 15 different bacterial species. Mycobacterium tuberculosis (25%), Pseudomonas aeruginosa (15%) and Staphylococcus aureus (14%) were the most frequent pathogens identified. 72 percent of pneumonic cases were monobacterial infections and the others were polybacterial infections (23% two-bacterial, and 5% three-bacteria). The highest antibiotic resistance rate was seen for amoxicillin and the lowest one was seen for vancomycin.Conclusion: This study found that the prevalence of bacterial pneumonia increases with age, and also is caused by different etiologic agents. A high percentage of negative cases may be due to fastidious bacteria, viral agents, and previous antibiotic therapy. Due to high levels of resistance to antimicrobial agents, accurate diagnosis and susceptibility testing of pneumonic patients is essential.
Abolfazl Abbas Zadeh, Tayebeh Mahzooni , Seyed Abolhasan Emami , Hossein Akbari , Mohammad Javad Fatemi , Mohsen Saberi , Tooran Bagheri , Mitra Niazi , Shirin Araghi ,
Volume 73, Issue 9 (December 2015)
Abstract
Background: Coriander with the binominal name of Corianda Sativum, is one of the oldest medicinal plants ever known to man. Anti-inflammatory, anti-microbial, and anti-fungal effects of its oil has been mentioned in numerous studies. This study examines the impact of coriander cream on wound healing of the second-degree singe burn.
Methods: In this experimental study which was performed in the animal lab of the Hazrat Fatemeh Hospital in Tehran, 48 adult male rats with an approximate weight of 250-300 grams, with deep burns of 2 cm 4×2 dimensions were prepared and divided into 4 groups of 12. We used silver sulfadiazine cream, alpha ointment, coriander cream and vaseline gauze (control group) dressings in burn wound of the groups 1 to 4 respectively. At the end of the study (30 days), rats were euthanized with a high dose of thiopental and the wounds were evaluated on days 10 and 17 with a punch biopsy. Samples were fixed with 10% formalin on histopathology slide using haematoxylin and eosin (H&E) staining (to assess and determine the presence of inflammatory cells). The amount of fibrin and collagen at the site were evaluated using a software program ImageJ, version 1.45 (National Institutes of Health, Bethesda, Maryland, USA).
Results: The mean of wound surface area in the first photography was no significant (P= 0. 135). The rate of wound healing in alpha ointment and coriander cream had better outcomes than either of the other two groups (P= 0.000). The healing of the wound in silver sulfadiazine group was significantly less than other groups. Pathology results showed a statistically significant difference between the four groups (coriander, alpha, SSD and control), based on the Kruskal-Wallis test. These relate to (1) polymorphonuclear in the first (P= 0.032) and the second series (P= 0.003), (2) Angiogenesis in the second series (P= 0.004). (3) Fibrosis in the first series (P= 0.024) and the second series (P= 0.000).
Conclusion: The results of this study showed that wound healing improvement in coriander cream group was better than the control group and silver sulfadiazine group and similar to alpha ointment group.
Nasrin Takzaree , Gholamreza Hassanzadeh , Mohammad Reza Rouini , Abbasali Keshtkar , Azadeh Manayi , Abbas Haajiakhondi ,
Volume 73, Issue 9 (December 2015)
Abstract
Background: One of the most important issues in medical sciences is wound healing and repair. Application of natural ingredients and herbs for treating ulcers has been in the history of human life. Nowadays, due to the lack of side effects of medicinal plants and a variety of effective compounds in plants, as well as numerous disadvantages of synthetic drugs there has been tendency to use medicinal plants in clinic. Aloe vera is an herbal drug used for treatment of dermal diseases. In this study we evaluated, effects of aloe vera on the wound healing through the microscopic techniques and cell counting.
Methods: In this experimental study, sixty Wistar rats weighing 200-250 g were placed under general anesthesia and sterile conditions. Then a square shape wound with 1.5´1.5 mm dimension was made on the back of the neck. Rats were randomly divided to control and experimental group’s. Each group was divided to three subgroups with 4, 7, and 14 study days. In 1st experimental group aloe vera was used twice on the wound surface and in 2nd experimental group was used once daily and the positive control group were applied phenytoin cream 1% from the zero days of surgery. The control group did not get any treatment on the wound surface. For histological studies, during the fourth, seventh and fourteenth day’s rats were sacrificed and samples were taken from the wound area and adjacent skin. After histological staining with hematoxylin and eosin (H&E) and Masson's trichrome stains, the cells were counted, wound surface and wound healing were investigated.
Results: The macroscopic and microscopic evaluation showed that wound healing increased because the fibroblast numbers in two experimental groups improved compared with control group. The percentage of wound healing on different days in the experimental and control groups were significant. Data were analyzed by using one-way ANOVA test and P< 0.05 was significant.
Conclusion: Present study showed that the twice application of topical aloe vera mucilage can result in rapid wound healing in rats.
Yasaman Alipour , Asieh Abbassi Daloii , Alireza Barari , Ahmad Abdi ,
Volume 73, Issue 9 (December 2015)
Abstract
Background: Undercarboxylated Osteocalcin (ucOC) may contribute to the regulation of glucose homeostasis. Undercarboxylated osteocalcin is special protein secreted by bone as an endocrine regulation of energy metabolism and glucose. It plays an important role in insulin secretion and sensitivity. The aim of this study was to survey the effect of eight weeks resistance training on serum levels of ucOC, adiponectin and insulin sensitivity in obese women.
Methods: This quasi-experimental study performed on twenty obese women (BMI> 30) in Amol City Sport clubs, Iran, in May 2014. Samples randomly divided into two groups: a control group and an experimental group. The experimental group consisted of eight weeks of resistance training, three times a week in six stations (including the movements of the leg press, bench press, triceps, biceps, abdominal motion, pull side and half scott) and with an intensity of 55% to 75% of one repetition maximum. Blood samples were collected after 12- 14 hours, fast and before it and also after eight weeks (48 hours after the last training session). Kolmogorov-Smirnov test was performed to confirm that data was normally distributed. The obtained data was analyzed using paired-sample t-test, independent t-tests and one-way ANOVA at the significance level of P< 0.05.
Results: The results showed that resistance training had no significant effect on serum ucOC (P= 0.094) levels and insulin sensitivity (P= 0.178) in obesity. However, the experimental group after resistance training showed significantly higher adiponectin level than the upper limit of normal range (P= 0.003). There was no relationship between adiponectin and ucOC.
Conclusion: Resistance exercise can increase levels of serum undercarboxylated osteocalcin (ucOC) and adiponectin in obese women. It can be said that this type of activity could possibly be effective in glucose hemeostasis.
