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Comparative Hypnotic Effect of Rosa damascena Fractions and Diazepam in Mice
Hassan Rakhshandah,Mohammad Taghi Shakeri,Mohammad Reza Ghasemzadeh
Iranian Journal of Pharmaceutical Research , 2007,
Abstract: Rosa damascena has been found to act on central nervous system including the brain. Several studies confirm that R. damascena inhibits the activity of the hypothalamus and pituitary systems in rat and can suppress the central nervous system. In traditional medicine hypnotic effect of Rose is also suggested. In this study, the hypnotic effect of the ethanol crude extract of R. damascena and its fractions was investigated in mice. Hypnotic method was based on prolongation pentobarbital induced sleeping time by the extract and fractions (with water, ethyl acetate and n-butanol). Two doses of extract and fractions (250 and 500 mg/kg) was injected intraperitoneal in comparison with diazepam (3 mg/kg) as the positive control and saline (10 ml/kg) as the negative control. Thirty minutes after injection of extract and fractions, pentobarbital (30 mg/kg) was injected and the increase in the sleeping time due to the extract and fractions was recorded. The results showed that the ethanol extract and fractions of R. damascena at 250 and 500 mg/kg doses prolonged the pentobarbital induced sleeping time in mice (P<0.05 to P<0.001). Among all fractions, aqueous fraction has the least, and the ethyl acetate fraction at 500 mg/kg dosage has the best hypnotic effect. In conclusion, the results of this study showed hypnotic effect of R. damascena which was more potent in ethyl acetate fraction.
Reliability of 3-Dimensional scapular kinematics measures of acromion marker cluster in patients with shoulder impingement syndrome during humeral elevation and lowering
Roshanak Keshavarz,Hassan Shakeri,Amir Massoud Arab,Esmail Ibrahimi Tokamjani
Pajouhan Scientific Journal , 2013,
Abstract: Introduction: The purpose of this study was to investigate the Reliability of 3-D scapular kinematics measures of Motion analyzer and Acromion cluster in patients with Shoulder impingement syndrome during humeral elevation and lowering.Material & Methods: 20 Patients (Males=13, Females=7) with Shoulder Impingement Syndrome (mean age: 46.15 years) who participated in the study. They elevated and lowered humerous in frontal, sagittal and scapular movement plane during 8 seconds, using the VICON motion analyzer and Acromion marker cluster. The Scapular 3-D kinematics was measured, using VICON motion analyzer and Acromion marker cluster. Interclass correlation coefficient and Standard error of measurement were used.Results: Participants showed average of age 46.53±13.314 as well as average of BMI 28.14±3.93, and all quantitative and qualitative variables had the normal distribution. Trial-to-trial ICCs for the 3-D scapular kinematics variables for both elevation and lowering condition in the sagittal, frontal and scapular planes ranged from 0.58 to 0.99, which indicated fair to excellent reliability, and the SEM for both elevation conditions ranged from 1.7 to 15.4 .Discussion: The reliability of the three-dimensional scapular attitudes for elevation and lowering phases were very good. The estimation of three-dimensional scapular attitudes using the method of calculation relative to the trunk is reproducible in the three movement planes during elevation and lowering phases and can be used to document the scapular behavior.
2D Analytical Model for Direct Ethanol Fuel Cell Performance Prediction  [PDF]
Saeed Heysiattalab, Mohsen Shakeri
Smart Grid and Renewable Energy (SGRE) , 2011, DOI: 10.4236/sgre.2011.24049
Abstract: Analytical models provide useful information for researchers to study fuel cell function. In this paper, it’s aimed to present a 2D analytical model for direct ethanol fuel cell (DEFC) performance. The model included equations inside diffusion layer, catalyst layer, and Ethanol cross-over through membrane, which all have been solved. Analytical model has been validated by some experimental trials. The results showed that there is proper agreement between experimental and analytical curves. Furthermore, by increasing current density, cathodic over potential will remain zero but anodic over potential will increase up to certain value. The model showed that Ethanol concentration changes almost linearly inside anode channel.
New Spa Types among MRSA and MSSA Isolates in North of Iran  [PDF]
Fatemeh Shakeri, Ezzat Allah Ghaemi
Advances in Microbiology (AiM) , 2014, DOI: 10.4236/aim.2014.413100
Abstract: Staphylococcus aureus typing using gene encoding protein A (spa typing) seems to have a high potential discriminatory power for typing this bacterium. This study was designed based on spa typing method to compare the S. aureus types among healthy carrier vs patients, and MRSA vs MSSA isolates. Method: This study was carried out on 182 spa typeable S. aureus isolates, including 52 MRSA. DNA was extracted by phenol chloroform-isoamyl alcohol method and it was amplified by specific primer of polymorphic X region of spa. Spa types were determined by Ridom Staph Type software. The spa types distribution among MRSA vs MSSA and healthy carrier vs patients, isolates were statistically compared by X2 method and P < 0.05 was considered as significant. Result: The most common types of spa in our region were t037 (18.3%) and t937 (13.9%) from 50 spa types which were identified in this study. spa types in this study were isolated from various age groups but t660 spa types were only isolated from children. Distribution of all spa types among MRSA and MSSA isolates was 16 and 38 types, respectively which is significant. In this study we found seven new spa types (belong to twelve isolates) which are reported for the first time. In 5 out of the above 7 new types the 24 bp repeated sequences in spa gene X region were already recognized but their 24 bp arrangement is introduced in our present investigation. In the remaining 2 new types we found new 24 bp nucleotide sequences which are also introduced for the first time in our present study. Conclusion: The distribution of spa types in MSSA strains was significantly higher than MRSA isolates, but there are not any specific spa types for discrimination between MRSA and MSSA. The novelty of our study is the introducing 7 new spa types including 2 new 24 bp repeated sequences in the X region of spa gene.
Study the Effect of High Dialysate Potassium Solution in Comparison to Low Potassium Dialysate Solution in End Stage Renal Disease Patients  [PDF]
Mohammad Nourizadeh, Masih Shakeri, Seyed Seifolah Beladi Mousavi, Mohammad Hassan Adel, Mohammad Hossein Najafi, Zahra Rezaee, Mehdi Nourizadeh, Sara Nourizadeh
Health (Health) , 2016, DOI: 10.4236/health.2016.84038
Abstract: Background: Nowadays cardiovascular diseases remain as the single most common cause of death in chronic dialysis patients; the aim of this study was to evaluate the effects of two different regimens of dialysis potassium removal in patients with a tendency to develop arrhythmias during haemodialysis (HD). Methods and Materials: There were 88 (36 men and 52 women) end stage renal disease (ESRD) patients recruited for the study. They received regular haemodialysis three times per week at the haemodialysis units of a university medical centre (Golestan hospital) during year 2011. We compared the arrhythmogenic effects of two dialysis techniques. Results: There was a tendency in the HD solution with constant (3 mEq/l) K for premature ventricular complex (PVC) appearance in to be reduced as compared with constant (2 mEq/l) K in the time of dialysis period, although this reduction was not statistically significant(P = 0.09). There was a significant reduction in SVC in the HD solution with constant (3 mEq/l) K as compared with constant (2 mEq/l) K. Discussion: In conclusion, the use of a model of intra-HD potassium that is more close to potassium serum concentration of ESRD patients can reduce the arrhythmogenic effect of HD in patients on regular HD treatment.
dicomPACS: PACS Leader in Germany - Kodak Partner
Maziyar Shakeri
Iranian Journal of Radiology , 2007,
Abstract: History of Distributor: We are PDP Co. (Pardazesh Danesh Pezeshki) founded in 1998 with more than 8 years Experiments in Diagnostic Medical Imaging Market .we launched our New Division in 2002 for Digital Imaging and Softcopy under name of PDP View . We studied our market demands and PACS Provider Companies for 2 years and finally we signed the Contract with the first leader German PACS Provider named dicomPACS ."nWe are the only company who their 3 engineers well trained in the PACS provider company and Certified for sales and after sales services . "ndicomPACS History: dicomPACS software house, was founded in Germany in 1991 - 16 years experiences -"nThe company's main business is the development, design, sale, installation and support of medical In-formation Technology systems, concentrating on total digital solution including :"n Complete digital Image processing solutions (PACS)"n Provider and supplier of all necessary digital equipment like CR and Film Digitizers "ndicomPACS and Kodak relationship: Due to dicomPACS High quality and good price , Not expensive as Kodak original PACS, dicomPACS is the partner and PACS Provider for Kodak CR , DR and Laser Imagers in Germany , Iran and many other countries ."nIntroducing dicomPACS: The company's customers are Hospitals and Clinics ."ndicomPACS is a market leader in Germany with about 5000 PACS workstations during last 15 years an dit has Worldwide activities in more than 30 countries .so it is very professional in responding to change client requirements and client specific pro-gramming ."n Company philosophy: To achieve an honest and transparent working with customers "n Company aim: To be the best and to guarantee its customers a tailor-made, optimal solution"n The company is certified in accordance with ISO 13485:2003 and the CE Mark , MED CERT . ( Medical Certificate ) and FDA "ndicomPACS Main Features"n Close co-operation with doctors to develop this software"n Easy to adapt to any size of practice or hospital based on your needs"n For all types of medical image data and modalities"n Specially designed for needs of Radiologists "n Connection via DICOM or video signal or Non Standard Analog "n Acquisition, archiving, diagnosis and communication"n Wide range of tools, features and add-ons e.g.Windowing, zoom, filters , planning ,3D reconstruction"n Has extremely favourable price-performance ratio "n User-friendly, intuitive and self-explanatory structure very little training required"ndicomPACS Technical Features"n Object orientated programming in JAVA, minimal risk"n Flexible
An Assessment of Temporal and Spatial Distribution of Thunder Storms in Iran  [PDF]
Gholam Abbas Fallah Ghalhari, Fahimeh Shakeri
Journal of Geographic Information System (JGIS) , 2015, DOI: 10.4236/jgis.2015.72009
Abstract: The main purpose of this study is to investigate temporal and spatial distribution of thunderstorm frequency in Iran. In order to do study, observed statistical data of the present weather codes of thunderstorm (17, 29, 91 - 99) in 50 synoptic stations around the country were used in a 35 years statistic period (1979-2013). The results of the study showed that the phenomenon occurs mostly in southwest, west and northwest regions of Iran. Thunderstorm occurrence reduces when moving toward east. Maku station in northwest of Iran shows the maximum thunderstorm frequency during the statistical period (mean annual of 31). Jask station in southern Iran (mean annual of 2) has shown minimum thunderstorm occurrence during the statistical period. In the eastern regions of Iran, Torbat Heydarieh station revealed higher frequency than the other stations which was because of high mountains like Qaenat. In terms of temporal distribution, spring showed the highest frequency of the phenomenon. In monthly scale, the maximum frequency of hail downfall happens in April and May. In hourly scale, the maximum occurrence of thunderstorm observed at 12 - 18 p.m. for UTC time.
Evaluation of Resistivity Index in Common Carotid Arteries in Patients with Severe Internal Carotid Stenosis
A. Shakeri Bavil,M. Shakeri Bavil
Iranian Journal of Radiology , 2008,
Abstract: Background/Objective: Nowadays duplex ultrasound is used for both screening and preoperative assess-ment of carotid arteries, and has in many institutions completely replaced carotid angiography for the lat-ter. This study aimed to identify resistivity index ab-normalities in common carotid arteries in patients with occluded or severely stenosed internal carotid artery. "nPatients and Methods: A total of 16 patients with se-vere internal carotid artery stenosis (stenosis>60%) or occlusion, were studied by Duplex ultrasonography at the Imam Khomeini Hospital of Tabriz, from Novem-ber 2005 to September 2006. Data were expressed as mean (SD), and as percentages. Statistical analysis was performed by SPSS ver. 13. "nResults: The mean age of patients were 73.3± 7.67 years. Resistivity index in common carotid artery was 0.85± 0.03 on stenotic side compared with 0.74±0.04 on contralateral side (p<0.05). Peak systolic velocity in common carotid artery was 41.5±17.00 cm/s on stenotic side compared with 59.5±22.03 cm/s on con-tralateral side, and there was no side difference re-garding flow velocities. "nConclusion: In patients with occluded or severely stenosed internal carotid arteries, compensatory va-sodilatation occurs in same side in cerebral vessels and this is significant that result in decrease of resis-tivity index on the contralateral common carotid ar-tery.
Autopsy Finding in Patients with Severe Head Injury
M. Shakeri Bavil
Research Journal of Medical Sciences , 2012,
Abstract: Brain damage in head injury results from either neural or vascular injury. Understanding the mechanisms of injury and their consequences is the foundation of management in head injured patient. This is a retrospective study of 216 cases with severe head injury that admitted and went under autopsy after death. From 216 cases, 81.9 were male and 18.1% female. The mechanism of trauma was traffic accident in 70.4%, falling in 18.8%, job accident in 6.1 and murder in 4.7%. Cases between 16-60 years old including 61.5% of all mortality. Cases whose death time was in 0-24 h after admission, consist of 27.7% of all mortality rate. The most common finding was linear skull fracture. Subdural hematoma was the most common extra axial lesion (45.4%). The most common intra axial lesion was contusion that was associated with skull fracture in 35.2%. The frequency of epidural hematoma was the same in all types of skull fractures. SAH was seen in 52.6% without any fracture.
Comparison of Vertebroplasty Versus Conservative Treatment in Osteoporotic Compression Fractures
M. Shakeri Bavil
Research Journal of Biological Sciences , 2012,
Abstract: To compare clinical and radiological results between vertebroplasty and conservative treatment in osteoporotic compression fractures of thoracolumbar spine, 34 patients were reviewed with at least 1 year follow up. Vertebroplasty was used in 14 and conservative treatment was done in 20 fractures. Our retrospective analysis demonstrated that vertebroplasty provided significant pain relief, improvement of motion and reduction of analgesic usage and also provided considerable spinal stabilization that prevented further Kyphosis and collapse.
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