Showing 10 results for Mostafavi
Farzan M, Mostafavi A,
Volume 59, Issue 1 (7 2001)
Abstract
Between 1371 to 1379, of 10 patients with radial tunnel syndrome, 9 patients were treated by decompression of the posterior interosseous nerve. 8 patients were followed up more than 10 months. One patient improved without surgery. Half of the patients suffered from pain and all of them had variable degrees of paralysis in muscles innervated by deep branch of the radial nerve. The syndrome was diagnosed after an average of 26 months after onset of symptoms. 3 patients had associated endocrine disease and 2 patients suffered from another accompanied compression neuropathy. 8 patients performed strenuous, repetitive upper extremity tasks. EMG confirmed the diagnosis in all patients. The source of nerve entrapment was identified as the arcade of Frohse in 4 patients. Malignant soft tissue tumor was responsible for nerve compression in one patient. More than one pathologic site was responsible for nerve entrapment in another 4 patients. Of 8 patients with enough follow-up after operation, pain was improved in all, but paralysis was improved in only half of them. According to ritts criteria, results were good in 50% of patients and in 50% of patients results were bad. All bad results were due to persistence of paralysis in affected muscles. One of four patients who had no improvement in paralysis, was satisfied with surgical result because tendon transfer was performed at the time of nerve decompression. It is recommended that all possible sites of nerve compression in the radial tunnel be explored and released.
Mostafavi F, Tavakoli M J,
Volume 61, Issue 1 (13 2003)
Abstract
Diabetes mellitus is the most common endocrine disease in childhood and adolescence. It has significant effects on growth and development of the involved patients.
Many studies have proved that in long term, diabetes causes an obviously decreased bone mass and linear growth in affected patients. Various studies have been done to determine the cause of these problems. In diabetic patients various degrees of calcium loss in urine have been detected.
Normally, the amount of calcium loss in urine of general population is less than 4 mg/kg/day, and the Ca/Cr ratio in a random urine sample is less tan 0.25.
Hypercalciuria may be the underlying cause of osteopenia and linear growth defect in diabetic children.
In our study, the urinary calcium loss of 50 diabetic children was determined. We tried to find a correlation between the amount of calcium loss in urine and plasma glucose.
These patients have been referred to Children's Medical Center during a 6 month period in year 2000. They had very higher incidence of hypercalciuria than the non-diabetic population, but we found no significant correlation between the severity of hypercalciuria and seventy of hyperglycemia in them.
Derakhshanian H, Marjanmehr Sh, Ghadbeigi S, Rahimi N, Mostafavi Sa, Hosseinzadeh P, Salehpour A, Dehpour Ar,
Volume 71, Issue 1 (4 2013)
Abstract
Background: Biliary cirrhosis is a chronic disease marked by the progressive destruct-tion of liver. There is no known cure for this disease however, medications may slow its progression. The present study was designed to investigate the effect of quercetin as a plant derived flavonoid on the hepatic injury reduction of biliary cirrhotic rats.
Methods: Thirty male Sprague-Dawley rats aged 6-7 months were randomized into three groups of ten each. One group served as control (sham operated), while the other two groups underwent a complete bile-duct ligation (BDL). Four weeks after the opera-tion, serum bilirubin, alkaline phosphatase (ALP), alanine amino-transferase (ALT), and aspartate amino-transferase (AST) were measured in two BDL groups to confirm the occurrence of cirrhosis. Then one of the BDL groups received placebo and the other one injected intraperitoneally with 50mg/kg of quercetin once a day for a period of four weeks. At the end of the study, hepatic enzymes and serum bilirubin were measured again. Liver species were tested for histological characteristics.
Results: Quercetin could decrease serum level of bilirubin (7.4±0.9 vs. 8.9±1.6 mg/dL P<0.05), ALP (1387±76.9 vs. 2273±65.3 IU/L P<0.001) and ALT (601.9±38.1 vs. 644.8±37.4 IU/L P<0.05) compared to cirrhotic group. AST was higher in cirrhotic groups compared to control both in the 4th and 8th week. However, the difference between BDL and BDL+Q groups was not statistically significant. Quercetin decreased ALT/AST ratio, as an indicator of liver damage. No significant histological changes were observed in quercetin group.
Conclusion: These data suggest that although quercetin did not change histological characteristics of liver, it could significantly decrease bilirubin, alkaline phosphatase and alanine amino-transferase, indicating less liver injury.
Mohammad Javad Fatemi , Amir Asadollah Khajerahimi , Babak Nikoumaram , Maryam Sakhaei , Shabnam Mostafavi , Amir Atashi , Mirsepehr Pedram , Seyed Hamid Reza Aghayan, Shirin Araghi , Majid Soltani , Majid Mossahebi Mohammadi ,
Volume 72, Issue 6 (September 2014)
Abstract
Background: Stem cells are applied in the treatment of wide range of diseases and can be separated from different tissues of the body. These cells can treat diseases by cytokine and growth factor secretion and also cell differentiation. Burn wound is a challenging problem of reconstructive surgery and stem cells may help wound healing process. We designed this study to evaluate the beneficial effect of fat derived stem cells for coverage of 3rd degree burn wound.
Methods: This study was experimental and has been done in Burn Research Center of Iran University of Medical Sciences during January 2012 to April 2013. Thirty rats randomly divided to three equal groups. Inguinal fat of 10 rats (one group) were used for preparation of autologous adipose-derived mesenchymal stem cells. Acellular amnion was used as a scaffold for stem cell transfer. Each of the thirty rats had been exposed to a cm deep 3rd degree burn on back area. 24 hours after surgery, the wound was excised and it had been covered by three methods: conventional dressing in the first group, acellular amnion in the second group and acellular amnion seeded with adipose-derived stem cell in the third group. The rate of wound healing and pathologic characteristics was compared in all three groups.
Results: Healing rate and decrease in wounds size was significantly better in acellular amnion seeded with adipose-derived stem cells compared with other two groups at 3rd and 15th days after surgery P<0.01.
Also in histopathology examination, fibroplasia and neovascularization of wounds were significantly better in stem cells group than the other two groups P<0.001.
Conclusion: Acellular amnion seeded with adipose-derived stem cell can result in faster wound healing and better histopathology characteristic. The amnion as a scaffold and the fat derived stem cells as healing accelerator are recommended for coverage of the 3rd degree burn wounds after excision and it may reduce the need for skin graft.
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.
Salva Sadat Mostafavi Dehraisi, Seyed Mehdi Sadat , Fatemeh Davari Tanha, Mohammad Reza Aghasadeghi, Golnaz Bahramali , Mahdi Safarpour , Ahmad Ebrahimi ,
Volume 72, Issue 10 (January 2015)
Abstract
Background: Uterine myomas are benign tumors of the uterus and the most common solid pelvic tumors causing symptoms in approximately 25% of women in their reproductive years. However, its etiology and pathogenesis remain obscure there is increasing evidence that endometriosis is inherited as a complex genetic trait. Recent studies indicated the involvement of glutathione S-transferase M1 (GSTM1) gene in the pathogenesis of this disease and current investigations are devoted to the other members of phase II detoxification system genes such as glutathione S-transferase T1 (GSTT1). Therefore, current study was carried out to investigate the distribution of GSTM1 and GSTT1polymorphisms in Iranian population in order to estimate possible impact of null-alleles of each gene in development of this disease.
Methods: In this study, 50 patients with endometriosis diagnosed by both pathology and laparoscopic findings according to the revised American Fertility Society classification of endometriosis were recruited from subjects referred to the Pasteur Institute of Iran between November 2012 to September 2013. Accordingly, controls (n=50) were subjects without any of aforementioned gynecologic conditions. The genomic DNA was extracted from peripheral blood leucocytes using the salting out method and GSTM1 and GSTT1 genotyping for gene deletions were carried out using Gap-polymerase chain re-action. Logistic regression analysis was applied to assess whether there was any significant risk increase between the case group with higher null genotypes compared to control group. The level of statistical significance was set at 0.05 and all analyses were conducted using the SPSS version 18.0 (SPSS Inc., Chicago, IL).
Results: There was significant evidence that the distribution of the GSTM1 and GSTT1 genotypes differed between the patients and the controls with an allelic odds ratio (OR) of 3.56 (95%CI: 1.35-9.37, P=0.01) and 3.92 (95%CI: 1.4-10 P=0.009) respectively. Data analysis also revealed that individuals with both GSTM1 and GSTT1 null genotypes (-/-) had higher risk to develop the disease in comparison to the people with the both present (+/+) genotype (OR:19.23, P=0.007).
Conclusion: The findings suggest that the GSTM1 and GSTT1 genetic polymorphisms are associated with the development of endometriosis in Iranian women which is in agreement with previous results obtained in other populations. However, the ethnic variations of polymorphisms should be evaluated in detail and differences should be incorporated into investigations of susceptibility variants for this disease.
Seyed Reza Saadat Mostafavi , Kaveh Samimi , Fatemeh Parvin Ashtiani , Soheil Fateh ,
Volume 73, Issue 10 (January 2016)
Abstract
Background: Recent studies have indicated the relation of vertebral endplate lesions (Modic changes) to low back pain (LBP). The aim of this study was to investigate the Modic changes in magnetic resonance imaging (MRI) of patients with low back pain, and its correlation with age, sex, type of changes, number of involved segments and location of changes. Additionally, association of degenerative disc changes and disc herniation was assessed.
Methods: In this retrospective study, MRI records of 229 patients with LBP referring to Medical Center of Hazrat-e-Rasoul Hospital, Tehran, Iran, from August to February 2014, were assessed and Modic changes and degenerative and herniated disc changes were recorded.
Results: Based on our observations, a significant association between Modic type and age (P= 0.003) existed in patients with LBP. The highest prevalence in Modic location were observed in anterior part of vertebral endplate (48.8%, P= 0.001). Although, observation of the Modic changes in superior vertebral endplate was higher than inferior parts, but this differences was not statistically significant. The highest prevalence in degenerative disc disease was disc dehydration which was observed in 18.1% of patients (P= 0.04). The relationship between the degenerative changes and Modic type was significant (P= 0.04), while the most prevalent change of disc contour was disc bulging which occurred in 23.7% of patients (P= 0.01). The highest frequency of abnormal disc contour were observed in Modic type 2 which was statistically significant (P= 0.01). Modic surface involvement above 25% was significantly associated with disc herniation (P= 0.04). There was no significant association between Modic height involvement above 25% and disc herniation.
Conclusion: Considering significant association between Modic changes and degenerative and herniated disc changes, reporting of Modic changes is necessary.
Mahbobeh Alizadeh , Majid Mousavi Movahed , Shokrollah Sadredini , Ashrafalsadat Mostafavi , Mohsen Fathi ,
Volume 74, Issue 9 (December 2016)
Abstract
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Background: Cardiopulmonary resuscitation, commonly well-known as CPR, is an emergency technique that includes chest compression often with artificial ventilation in an exertion to manually preserve complete brain task until additional measures are taken to return spontaneous blood circulation and breathing in a person who is in cardiac arrest. According to the International Liaison Committee on Resuscitation Guidelines, CPR includes chest compressions for adults between 5 cm (2.0 in) and 6 cm (2.4 in) deep and at a rate of at least 100 to 120 per minute. Cardiopulmonary resuscitation is aimed to reverse vital organs as like as heart, lungs and for subsistence of patients. Several researches showed that different factors affect the resuscitation results. The current study was designed to assess the results of resuscitation and its association factors.
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Methods: This retrospective, descriptive and analytic study was carried out in Baharloo Hospital, Tehran, Iran during March 2014 and February 2015. In current work, all resuscitated patients were imported and patients with uncompleted files and died before entrance to hospital were excluded. The data was obtained from medical records units, office files unit and the unit of quality improvement. Data were analyzed by use of SPSS version 22 (Armonk, NY, USA) software and Chi-square test and Student’s t-test.
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Results: From 891 patients, 813 cases were entered the study that 498 (61.3%) were male and 315 (38.7%) were female. 41.1% of resuscitation were successful and 58/9% were unsuccessful. The mean and standard deviation time of resuscitation was 28.80 and 12.6 minutes; the most frequent primary diagnosis was cardiovascular disease. In this study there was a significant difference between age and duration of the resuscitation with successful resuscitation (P= 0.02) but, in the variables of ward and resuscitation team were not significant (P> 0.05).
Conclusion: The results of this study showed that resuscitation in younger group, short duration of resuscitation and patients without heart diseases are more successful.
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Hossein Ghayoumi Zadeh, Mostafa Danaeian, Ali Fayazi , Farshad Namdari, Sayed Mohammad Mostafavi Isfahani ,
Volume 76, Issue 1 (April 2018)
Abstract
Background: One common symptom of diabetes is diabetic retinopathy, if not timely diagnosed and treated, leads to blindness. Retinal image analysis has been currently adopted to diagnose retinopathy. In this study, a model of hierarchical self-organized neural networks has been presented for the detection and classification of retina in diabetic patients.
Methods: This study is a retrospective cross-sectional, conducted from December to February 2015 at the AJA University of Medical Sciences, Tehran. The study has been conducted on the MESSIDOR base, which included 1200 images from the posterior pole of the eye. Retinal images are classified into 3 categories: mild, moderate and severe. A system consisting of a new hybrid classification of SOM has been presented for the detection of retina lesions. The proposed system includes rapid preprocessing, extraction of lesions features, and finally provision of a classification model. In the preprocessing, the system is composed of three processes of primary separation of target lesions, separation of the optical disk, and separation of blood vessels from the retina. The second step is a collection of features based on various descriptions, such as morphology, color, light intensity, and moments. The classification includes a model of hierarchical self-organized networks named HSOM which is proposed to accelerate and increase the accuracy of lesions classification considering the high volume of information in the feature extraction.
Results: The sensitivity, specificity and accuracy of the proposed model for the classification of diabetic retinopathy lesions is 98.9%, 96.77%, 97.87%, respectively.
Conclusion: These days, the cases of diabetes with hypertension are constantly increasing, and one of the main adverse effects of this disease is related to eyes. In this respect, the diagnosis of retinopathy, which is the same as identification of exudates, microanurysm and bleeding, is of particular importance. The results show that the proposed model is able to detect lesions in diabetic retinopathy images and classify them with an acceptable accuracy. In addition, the results suggest that this method has an acceptable performance compared to other methods.
Keihan Mostafavi, Fariba Ghorbani, Mojtaba Mokhber Dezfuli , Mahdieh Hazrati , Ehsan Alibeigi , Nafise Mohamadizade,
Volume 80, Issue 8 (November 2022)
Abstract
Background: Considering the high death rate of patients on the transplant waiting list, one of the most important ethical challenges of organ transplantation is the lack of transplant organs and different approaches to cover it.
Methods: The ethical issues of organ transplantation have been frequently reviewed recently.
Results: Currently, there are 4 sources for organ transplants, which are: a) organ transplant from animal to human b) transplant from a living donor c) transplant from a brain-dead donor d) transplant from a cardiac-dead donor or donors without a heartbeat, and tissue engineering research continues to prepare a transplantable organ. Each of them has its own limitation and specific consideration. In Iran, organ procurement from brain-dead donors and living donors are the most important sources. Many approaches have been considered to increase the number of procured organs from brain-death cases in the world, but have not yet been able to reduce the gap between supply and demand. Therefore, since the 1980s, the program of organ transplantation from cardiac death (donors with irreversible cardiac arrest) in the world has been reviewed again. Based on the classification of cardiac arrest patients, they are placed in two general categories: uncontrolled and controlled. In a controlled condition, death is predictable, and organ removal is possible by eliminating planned medical interventions and patient support. But in the uncontrolled state, death occurs accidentally, which is more likely to prolong the duration of hot ischemia. Italy's organ donation group has recently introduced type 6 deaths in patients on ECMO, which is mentioned as a semi-controlled group. This group is called donors with abnormal blood flow versus brain-dead donors with normal blood flow. In this study, ethical considerations for organ donation from NHBD were discussed. Regarding the procurement of organs from non-heart beating donors, there are many ethical considerations that include both the donors and the recipients. Considering that the clinical conditions of the brain-dead donors are sometimes very unstable, cardiac arrest may occur before organ harvesting. In these cases, donation after cardiac death is an option.
Conclusion: It is necessary to regulate the ethical considerations for organ procurement from NHBD
