Samad Sajjadi

Learn More
Accumulating evidence indicates that the brain-gut peptide ghrelin which is expressed in hippocampus improves memory and learning processes. The MK-801, a noncompetitive NMDA receptor antagonist, has also shown amnesic properties in animal model. The current study was to find out whether intracerebroventricular administration of ghrelin can prevent amnesia(More)
OBJECTIVE The aim of this study was to review cases of odontogenic tumors diagnosed in two pathology centers in Tehran, Iran, during a 10-year period. STUDY DESIGN Patients' records were seen at two teaching pathology Centre's of Shahid Beheshti University between the months of March 2000 to 2010 with histologic diagnosis of any type of odontogenic(More)
OBJECTIVE In the present study expression of cyclin D1 in the epithelial lining of odontogenic keratocyst, radicular cyst, dentigerous cyst and glandular odontogenic cyst was investigated to compare proliferative activity in these lesions. MATERIAL AND METHOD Immunohistochemical staining of cyclin D1 on formalin-fixed, paraffin-embedded tissue sections of(More)
INTRODUCTION Laws, regulations, and guidelines are necessary external stimuli that influence the management of health data. They serve as external mechanisms for the reinforcement and quality improvement of health information. Despite their inevitable significance, such laws have not yet been sufficiently formulated in Iran. The current study explores(More)
INTRODUCTION Any information which is generated and saved needs to be protected against accidental or intentional losses and manipulations if it is to be used by the intended users in due time. As such, information managers have adopted numerous measures to achieve data security within data storage systems, along with the spread of information technology.(More)
BACKGROUND Despite its inevitable significance, the effect of in-service English education on medical professionals has rarely been studied longitudinally. The reason can be issues such as physicians' heavy workload, commuting problems, inappropriate class times, and inexperienced teaching staff. MATERIALS AND METHODS A needs assessment worksheet was(More)
  • 1