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Ultrasonographic findings of mesenchymal chondrosarcoma of the mandible: report of a case
Shahidi, Shoaleh,Shakibafard, Alireza,Zamiri, Barbod,Mokhtare, Mohammad Reza,Houshyar, Maneli,Houshyar, Maral,Amanpour, Sara Korean Academy of Oral and Maxillofacial Radiology 2012 Imaging Science in Dentistry Vol.42 No.2
Today, ultrasound imaging is being widely used to assess soft tissue lesions in the maxillofacial region. However, ultrasound investigations of intra-osseous lesions are rare, especially for tumors of the jaws. This report emphasized the capability of this useful imaging modality in identification of the characteristics of malignant conditions involving the bone. Mesenchymal chondrosarcoama, one of the unusual malignant conditions of the jaw, was presented in a young male with significant facial swelling. Different imaging modalities parallel with the histopathologic investigation confirmed the diagnosis. Interestingly, destruction of the bony cortex and new bone formation with a characteristic "sun ray appearance", highly suggestive of sarcomas, was manifested on the ultrasonograph. Thus, this report presented the ultrasonographic features of chondrosarcoma of mandible and considered the ultrasonography to be a useful imaging modality to evaluate intra-osseous jaw lesions.
Effect of Using Cold Plasma on Dyeing Properties of Polypropylene Fabrics
Shahidi, S.,Ghoranneviss, M.,Moazzenchi, B.,Rashidi, A.,Dorranian, D. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.1
The low temperature plasma(LTP) technique is used widely to modify polymer and textile materials. This paper describes the development of a plasma system for textile treatment. Polypropylene(PP) has a very low value of the surface free energy(approximately 20-25 $mJ/m^2$). Due to low surface energy, Polypropylene has very weak hydrophilic properties. By controlling the plasma variables, such as the nature of gas, the discharge power, the pressure and the exposure time, a great variety of surface effects can be generated. In this paper, we report the effect of cold plasma of $O_2\;and\;N_2$ gases at various time of exposure on the dyeing and physical properties of PP fabrics. The results show a significant increase in the color depth upon dyeing after treating PP fabrics with low temperature plasma of $O_2\;and\;N_2$. For comparing the amount of fabrics dye exhaustion, we have used reflective spectrophotometer. The morphology of the modified surfaces has also been investigated using scanning electron microscopy(SEM). And also FTIR was used to examine the functional groups of the corresponding samples.
Shahidi, Shoaleh,Zamiri, Barbod,Bronoosh, Pegah Korean Academy of Oral and Maxillofacial Radiology 2013 Imaging Science in Dentistry Vol.43 No.2
Purpose: Preoperative radiographic assessment of the mandibular third molars is essential to prevent inferior alveolar nerve damage during extraction. The purpose of this study was to assess the reliability of panoramic signs of association between the roots of teeth and the canal, and to compare the panoramic signs with cone beam computed tomography (CBCT) findings. Materials and Methods: CBCT images of 132 impacted mandibular third molars were evaluated to determine the association of the root to the canal. The CBCT findings were compared with the corresponding panoramic images. Logistic regression analysis was used to define the diagnostic criteria of the panoramic images. Results: Among the panoramic signs, loss of the cortical line was the most frequent radiographic sign predicting association (sensitivity: 79.31). Contact of the tooth with the canal was observed in all cases in which the loss of cortical line of the canal or darkening of the roots was found on the panoramic radiographs. Conclusion: Darkening of the roots and loss of the cortical line on panoramic radiographs might be highly suggestive of the risk of nerve injury.
Fereidoon Shahidi,Homan Miraliakbari 한국식품영양과학회 2004 Journal of medicinal food Vol.7 No.4
The omega-3 polyunsaturated fatty acids have a wide range of beneficial effects in several human health pathologies. Laboratory animal and in-vitro studies have indicated that omega-3 fatty acids affect blood lipid profiles, cardiovascular health, membrane lipid composition, eicosanoid biosynthesis, cell signaling cascades and gene expression. Findings from epidemiological studies suggest that intake of n-3 fatty acids from natural sources or supplements may influence the onset and progression of several disease states including cardiovascular disease and cancer. This review highlights some recent findings in health research that advance our understanding of how omega-3 fatty acids influence cardiovascular health and cancer development.
Shoaleh Shahidi,Barbod Zamiri,Pegah Bronoosh 대한구강악안면방사선학회 2013 Imaging Science in Dentistry Vol.43 No.2
Purpose: Preoperative radiographic assessment of the mandibular third molars is essential to prevent inferior alvelor nerve damage duing dxtraction. The purpose of this study was to assess the reliability of panoramic signs of association between the roots of teeth and the canal, and to compare the panoramic signs with cone beam computed tomography (CBCT) findings. Materials and Methos: CBCT images of 132 impacted mandibular third molars were evaluted to determine the association of the root to the canal. The CBCT findings were compared with the corresponding panoramic images, Logistic regression analysis was used to define the diagnostic criteria of the panoramic images. Results: Among the panoramic signs, loss of the cortical line was the most frequent radiographic sign predicting association (sensitivity: 79.31). Contact of the tooth with the canal was observed in all cases in which the loss of cortical line of the canal or darkening of the roots was found on the panoramic radiographs. Conclusion: Darkening of the roots and loss of the cortical line on panoramic radioprahps might be highly suggestive of the risk of nerve injury.
Ultrasonographic findings of mesenchymal chondrosarcoma of the mandible: report of a case
Shoaleh Shahidi,Alireza Shakibafard,Barbod Zamiri,Mohammad Reza Mokhtare,Maneli Houshyar,Maral Houshyar,Sara Amanpour 대한구강악안면방사선학회 2012 Imaging Science in Dentistry Vol.42 No.2
Today, ultrasound imaging is being widely used to assess soft tissue lesions in the maxillofacial region. However, ultrasound investigations of intra-osseous lesions are rare, especially for tumors of the jaws. This report emphasized the capability of this useful imaging modality in identification of the characteristics of malignant conditions involving the bone. Mesenchymal chondrosarcoama, one of the unusual malignant conditions of the jaw, was presented in a young male with significant facial swelling. Different imaging modalities parallel with the histopathologic investigation confirmed the diagnosis. Interestingly, destruction of the bony cortex and new bone formation with a characteristic “sun ray appearance”, highly suggestive of sarcomas, was manifested on the ultrasonograph. Thus, this report presented the ultrasonographic features of chondrosarcoma of mandible and considered the ultrasonography to be a useful imaging modality to evaluate intra-osseous jaw lesions.
Fereidoon Shahidi,Homan Miraliakbari 한국식품영양과학회 2005 Journal of medicinal food Vol.8 No.2
Omega-3 fatty acids from marine and plant sources provide a wide range of benefits in several human healthconditions. In vivo studies indicate that omega-3 fatty acids influence the course of several human diseases, including thosethat involve abnormal immune function, mental disorders, and genetic abnormalities in lipid metabolism. Omega-3 fatty acidsare taken up by virtually all body cells and affect membrane composition, eicosanoid biosynthesis, cell signaling cascades,and gene expression. These fatty acids are especially important during human brain development; maternal deficiency ofomega-3 fatty acids may lead to several neurological disorders. The review highlights recent findings on omega-3 fatty acids’influence on autoimmune diseases, mental health, and gene expression.
Sheila Shahidi,Bahareh Moazzenchi 한국섬유공학회 2019 Fibers and polymers Vol.20 No.8
Ultraviolet (UV) radiation is harmful for humans. Some textiles can protect humans against UV radiation. Ordinary fabrics have low ultraviolet protection values and can be modified by some finishing treatments. In this researchwork, madder and weld as natural dyes were used to dye wool fabric in order to increase UV protection. Two methods wereused to modify natural dyeing of the wool fabric. In the first one, CuSO4 and FeSO4 were used as mordant for natural dyeing. In the second method, which is novel, plasma sputtering of wool fabrics by Cu and Fe in order to improve the UPF value andthe affinity of wool fabric towards natural dyes were used and results were compared. The results show that, both natural dyeand mordant treatment are effective in improving the UV protection properties of wool fabrics. On the other hand, plasmasputtering as an eco-friendly and dry method play very important role for improving the UPF value of the fabrics.
Haghdoost, Amir,Golestan, Leila,Hasani, Maryam,Noghabi, Mostafa Shahidi,Shahidi, Seyed Ahmad The Korean Society of Fisheries and Aquatic Scienc 2022 Fisheries and Aquatic Sciences Vol.25 No.5
This study is focused on the effect of phycobiliprotein extraction of Gracilaria on the quality of common carp burgers, and the application of nanoliposomes containing pigment in the improvement of its antimicrobial and antioxidant activity of burgers during refrigerated storage in 18 days. Burgers were incorporated with phycobiliprotein and liposomal phycobiliprotein (2.5% and 5% w/w), and their chemical and microbial changes in terms of pH, peroxide value (PV), thiobarbituric acid (TBA), total volatile basic nitrogen (TVB-N), total viable counts (TVC), psychrotrophic bacterial counts (PTC), and sensory characteristics were evaluated. Results presented a nanoliposome size of about 515.5 nm with capable encapsulation efficiency (83.98%). Our results showed non-encapsulated phycobiliprotein could delay the deterioration of common carp burgers, as a reduction in PV, TBA, and TVB-N, TVC, and PTC values in burgers treated with free and nano encapsulated phycobiliprotein. Moreover, the potential of phycobiliprotein was improved when it was encapsulated into chitosan coated liposomes. Burgers treated with 5% nanoliposomes displayed the lowest amount of lipid oxidation and microbial deterioration in comparison to others during storage. According to chemical, microbial and sensory evaluation, the shelf life of common carp burgers was increased in samples treated with encapsulated phycobiliprotein at 2.5% and 5%, as compared to the control (p ≤ 0.05).