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Search Results: 1 - 10 of 653497 matches for " P. Mansouri M.R. Mortazavi "
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Z. Safaii Naraghi.,P. Mansouri M.R. Mortazavi
Acta Medica Iranica , 1996,
Abstract: Scleromyxedema is a rare, chronic, progressive, fibromucinous disorder of unknown etiology, characterized by lichenoid waxy papules and firm induration of skin of trunk, face, forearm and hands; fibroblast proliferation and mucin deposition in the upper dermis. Cutaneous involvement is characteristic but there are several associated systemic manifestations: We observed a case of scleromyxedema with multiple systemic manifestations including endocrinopathy and hypothyroidism. Scleromyxedema is a multisystem disorder associated with multiple organ involvement including liver, muscle, kidney and could be associated with endocrinopathies including hypothyroidism.
P. Mansouri,M. Lotfi,M.R. Mortazavi Z. Safaii Naraghi
Acta Medica Iranica , 1999,
Abstract: Florid cutaneous papillomatosis (FCP), is a rare cutaneous marker of internal malignancy. The underlying cancer is usually intra-abdominal (most often gastric in origin), and evolves parallel to the FCP. There is a common association between FCP and the other two eruptive paraneoplastic syndromes, i.e.malignant acanthosis nigricans and the sign of Leser-Trelat. It seems possible that these syndromes develop via a common pathogenic pathway due to production of a factor similar to human epidermal growth factor by the underlying cancer. We report a case of FCP associated with malignant acanthosis nigricans, palmoplantar keratoderma and gastric adenocarcinoma.
P. Mansouri,Z. Safaii Naraghi,H. Seirafi M.R. Mortazavi
Acta Medica Iranica , 1999,
Abstract: Pachydermodactyfy is a rare, benign mostly asymptomatic digital fibromatosis, characterized by swelling on the back and sides of proximal phalanges and (or) proximal interphaiangeal joints. It occurs predominantly in young males although a few women including a familial case were recently described. A history of repeated trauma is sometimes available, but the etiology remains unknown. We report two cases one of which had a history of repeated trauma (rubbing) to the involved area.
P. Mansouri.,M. R. Mortazavi Z. Saraii Naragki
Acta Medica Iranica , 1999,
Abstract: Keratosis follicularis spinulosa decalvans (KFSD) represents a rare, probably X-linked recessive genodermatosis, characterized by keratosis pilaris of face, trunk and extremities, followed by atrophy, cicatricial alopecia of the scalp, eyebrows and eyelashes, photophobia and corneal abnormalities. We report a rare case of KFSD and review the literature.
MTA Pulpotomy in Primary Molars: A Prospective Study
M. Mortazavi,M. Mesbahi,M.R. Azar,G. Ansari
Research Journal of Biological Sciences , 2012,
Abstract: This study was designed to evaluate clinical and radiographic success rates of Mineral Trioxide Aggregate (MTA) as a relatively new pulpotomy agent for pulp treatment of primary teeth. This prospective investigation was carried out on a group of children with a mean age of 6.4 years who were referred to Shiraz Dental School for routine care. Pulp amputation was carried out following routine local anesthetic induction on selected primary molars and then MTA (Pro root, USA) was placed over the already formed clot at the canal orifices. All teeth were restored using Stainless Steel Crowns and a recall program was set for 6, 12 and 24 months. Clinical and radiographic evaluations were attempted in all recall visits. Overall 55 primary molar teeth were treated by this new technique 4 of which failed for any follow-up evaluations. Apparently, all of the remaining 51 treated teeth were found to be sound and without any sign or symptoms both by clinical and radiographic means (100% success at 12 and 24 months), postoperatively. Based on the findings of this study, it seems that MTA could be used as an alternative to the current Formocresol medication with high clinical and radiographic success in pulpotomy of primary teeth.
The Effect of Eye - Hand Coordination Activities on Hand Skills of Educable Mental Retarded Students (7-10 Years)
M.R Hadian,S Mortazavi,M Abdolvahab,H Bagheri
Modern Rehabilitation , 2007,
Abstract: Background and Aim: Normal & skillful function of hand is an essential part of activity of daily living. Analysis of the function of hand shows the major contribution of fine movements. Fine movement is also important in motor development. In this regard, any deficiency in fine movement may cause various problems for children. Hence, assessment of fine movement in children, particularly in mental retardation disorders is a prerequisite of any rehabilitation protocol. Material & Methods: 27 mental retarded children were participated in this cross sectional study. Children were in the range of 7-10 Yrs (Mean & SD, 8/11 &1/09 yrs, respectively). Parents were asked to sign the informed consent. Purdue Peg board test was used for the assessment of hand skill. After fifteen sessions of intervention including eye hand coordination activities, Purdue Peg board test were repeated. Results: Speed of movements (rates in 30 seconds) in dominant & recessive hand, coordination of both hands and hand skills were significantly differed (pre & post intervention, P≤ 0/05). It was also revealed that hand skills are directly related with speed movement of dominant hand. ( P≤ 0/05). Furthermore, there was no difference in the eye hand coordination activities of male and female individuals. ( P≤ 0/05). Conclusion: The results of this study showed that eye-hand coordination activities have positively affected the skill of hand movement in educable Mental retardation students in both sex. Simple skills such as speed of hand improved in shorter time in comparison with complicated skills (e.g. coordination of tow hand). Based on these evidences, a comprehensive rehabilitation program including eye hand coordination activities would be suggested for educable Mental retardation individual.
Journal of Research in Medical Sciences , 2000,
Abstract: Introduction. Glass ionomer materials have been, used for years as liners, bases and temporary restoration for children. Their bonding properties allow temporization, which would be difficult with conventional cements of restorative materials. The desirable properties include easy and rapid application, fluoride release, biocompatibility and adhesion to dentin and enamel tend to be used in children specially for precooperative or handicapped children and preclude the need for treatment using general anesthesia of sedation in this research, shear bond strength of glass ionomer in two groups, including normal group and hypoplastic enamel group is tested. Methods. For this purpose, 2 groups each including 12 samples of normal anterior deciduous teeth and hypoplastic anterior deciduous teeth (with attention to hypoplastic indices) were chosen. The labial surface of teeth were prepared with medium and fine size discs, chem fil glass ionomer cement was bonded to prepared surfaces of teeth, and then samples were fixed in special site of self curing acrylic. The specimens were tested with a model 4031 instron machine. A shear load was applied to the base of the bonded glass ionomer cylinder with a knife edge rod (width, 0.5 mm) at a cross head speed of 0.5 mm/mm. Results. The mean of obtained sbs for 2 groups was 16.35 and 11.63 KGF/mm2. Conclusions. Statistical analysis of the results showed significant defferences between studied groups. But with attention to desirable properties, application of glass ionomer cement in hypoplastic defects of enamel in children is recommended.
Effect of nitrogen-sulfur ratio on the digestibility of roughage based diet incubated with rumen liquor of buffalo
H. Fazaeli,M.R. Mashayekhi,H. Mansouri
Italian Journal of Animal Science , 2010, DOI: 10.4081/ijas.2007.s2.450
Abstract: In a compeletely randomized experiment, with factorial arrangment, the effects of three levels of urea and four levels of sulfur were tested on in vitro digestibilty and fermentability of rouphage based ration, incubated in rumen liqure of buffalo. Results showed that in vitro digestibility were not affected by the levels of urea, sulfur, or interaction of these factores. There was no variation among the treatments up to 12h of incubation for the cummulative gas production, but it was reduced when surful level increased from 0.37 to 0.41 or 0.45 percent of diet. Regardless of sulfur, urea significantly (p<0.05) affected gas production. There was also an interaction effect between nitrogen and sulfur levels on gas production, after 12 or 24h of fermentation (p<0.05) but not for the longer times of incubation. It could be concluded that 0.33% sulfur and 0.5 or 1.0% urea which provided a total N/S ratio of 4.68 to 5.28 or urea N/S ratio of 0.66 to 1.34 may be optimum ranges for rumen fermentations of rouphage based diets in buffalo.
Journal of Research in Medical Sciences , 2003,
Abstract: Introduction: A high portion of lead and copper concentration in municipal drinking water is related to the metallic structure of the distribution system and facets. The corrosive water in pipes and facets cause dissolution of the metals such as Pb, Cu, Cd, Zn, Fe and Mn into the water. Due to the lack of research work in this area, a study of the trace metals were performed in the drinking water distribution system in Zarin Shahr and Mobareke of Isfahan province. Methods: Based on the united states Environmental protection Agency (USEPA) for the cities over than 50,000 population such as Zarin Shahr and Mobareke, 30 water samples from home facets with the minimum 6 hours retention time of water in pipes, were collected. Lead and cadmium concentration were determined using flameless Atomic Absorption. Cupper, Zinc, Iron and Manganese were determined using Atomic Absorption. Results: The average concentration of Pb, Cd, Zn, Fe and Mn in water distribution system fo Zarin Shahr were 5.7, 0.1, 80, 3042, 23065 and in Mobareke were 7.83, 0.8,210,3100, 253, 17μg respectively. The cocentration of Pb, Cd and Zn were zero at the beginning of the water samples from the municipal drinking water distribution system for both cities. Conclusion: The study showed that the corrosion by products (such as Pb, Cd and Zn) was the results of dissolution of the galvanized pipes and brass facets. Lead concentration in over that 10 percent of the water samples in zarin shahr exceeded the drinking water standard level, which emphasize the evaluation and control of corrosion in drinking water distribution systems.
Journal of Research in Medical Sciences , 2001,
Abstract: Introduction. The protozoan parasite Giardia is one of the important biological cotaminants in water. lts presence in water has caused the outbreak of a number of epidemics in various part of the world including the United States. The major impediment in detecting this particular parasite is unavailability of suitable filters capable of removing it from water. Regarding the fact yarn wound filters (cartridge) used in removing Giardia under laboratory condition are currently difficult to obtain in Iran, attempts were made to design and manufacture the filters according to standards recommended in the literature. Methods. To determine the efficiency of filters manufactured in this way, a pilot system was established and parameters of concern were investigated. A given number of cysts were introduced in each case to the water in the pilot tank after being counted on the hemocytometer lamella After the entire tank water (at least 4001)had been pumped through the filters, the filter were removed from the pilot system to have their yarns separated and washed. The cysts recovered were then counted and compared with the original input cysts to determine the efficiency of the filters. Formation of sediments on filters due to suspended solids in water was a great impediment in counting the cysts hidden in the sediments. To overcome this difficulty, the method of floatation in sucrose was used to remove the hidden cysts from the sediments. Regarding the morphological characteristics of the cysts, the method was also studied in terms of the sucrose film concentration and the effects of centrifugal speed and duration on the removal of cysts from sediments. Results. The results indicated an efficiency of 80.69±5.85, which was ideal for a first experience in Iran. a level of 2.5 molar of Sucrose with a duration of 10 minutes for the centrifugation time at 2,000 rpm were considered to be optimum levels to yield a certainty of 95 percent and an efficiency of 89.95±4.25 . Discussion. The comparison of the efficiency obtained with those obtained across the world from the application of other techniques associated with this method indicated that this filter was advantages to similar filters, keeping in mind also that this filter can be used in field situations. It is essential to modify in each region the method of cyst removal from sediments using Sucrose gradient according to the particular morphological characteristics and density of cystes. The optimization of Sucrose gradient and the centrifugation duration and speed seems equally important.
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