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Articles by A. Khodadadi
Total Records ( 4 ) for A. Khodadadi
  S. Nikakhlagh , F. Rahim , A. Khodadadi and N. Saki
  The aimed to evaluate the plasma level of Viral Capsid Antigen (VCA)-IgA and IgG in family members of Nasopharyngeal Carcinoma (NPC) patient in comparison to healthy controls in Southwestern of Iran. Total 60 NPC patients were compared with 60 sex, age and ethnically matched healthy controls. The obtained serum samples participants were tested for VCA-IgA, VCA-IgG, Early Antigen (EA), IgG, EBNA-IgG by ELIZA. There was no significant difference in all EBV antibodies between patients and control groups (p>0.05). The serological of three IgG antibody meant that 66.6% of two groups had the past infection; of NPC families 6.6% and from controls 1.6% were susceptible to infection with EBV. 3.3% in members of NPC families had reactivation infection. The sex of the patients in case group had positive correlation with VCA-IgA, EBNA-IgG, EA-IgG and negative correlation with VCA-IgG. The age of the patients also showed positive correlation with EBNA-IgG, EA-IgG, VCA-IgG and negative correlation with VCA-IgA. None of the EBV antibodies had significant correlation with age and sex of the patients. Because of no statistical difference between VCA-IgA mean titr from members of NPC families and controls, there is the not higher risk for members of NPC families to controls for NPC. The cause that had positive VCA-IgA also had positive EBNA-IgG and VCA-IgG. Anti-EBV antibodies can be used as diagnostic markers of NPC in Southwestern region of Iran. The combined use of two or more markers marginally improved the discriminating power but that has to take into consideration the higher costs.
  B. Amouoghli Tabrizi , D. Mohajeri , G. Mousavi , F. Farajzade , A. Khodadadi , S.B. Alizade and B. Reihani
  In the present research, we decided to study about the protective effect of vitamin E against Azathiprine-induced toxicity. In this study, 40 male Wistar rats were divided to 4 groups (each group contains 10 rats). For the first group, as the control one, normal saline was given. The second and third groups received 20 mg kg-1 of vitamin E daily and for 7 days by Intra Muscular (IM) injection. The forth group, that had similar state with three others, normal saline was injected for 7 days. On the seventh day, both 3 and 4 group treated by 15 mg kg-1 Azathioprine as a single dose and Intra Peritoneal (IP) form. Two other groups only received the dissolvent of Azathioprine in the same dose and manner. Twenty four hours after Azathioprine injection, the animals after being weighted were anesthetized by ether and blood sample were taken via., the tail vein and pathological sample was got from liver. The samples were allowed to clot and then their serum was separated by centrifuge machine of 2500 rpm for 10 min. This study showed that Azathioprine-induced damage on liver in group 3 is less than group 4 and function of organ in group 3 is nearly same with control group. Results of this study demonstrated that vitamin E decrease Azathioprine-induced hepatotoxicity in rat. According to surveys that have done, the necrotic regions and hepatic cellular death in liver was so lesser in the group that treated together with Azathioprine and vitamin E than the group that treated only by Azathioprine and was so similar to control group. Generally, the pathological results of this study confirm the biochemical results.
  A. Abedian Amiri , Sara Amiri , S. Behrouzi , F. Naseri , P. Arabzadeh , A. Babaalian and A. Khodadadi
  During reproduction and the culture period of white shrimp Litopenaeus vannamei (Boone, 1931), 453 cultured shrimp and 3756 samples from hatcheries of Iran were surveyed. All bacterial colony grown on the thiosulfate citrate bile salt sucrose agar (TCBS), are isolated and identified to the genus level with PCR and identified to the species level using a series of biochemical reactions. The Vibrio spp., isolated were survived for measure of sensitivity to seven broad-spectrum antibiotics. The Vibrio spp., were V. alginolyticus, V. pharahemolyticus, V. fluvialis, V. splendidus, V. proteolyticus, V. anguillarum II, V. natriegenes, V. harveyi, V. nereis, V. gazogenes, V. pelagius and Vibrio spp. The location of the research was Sistan and Baluchestan province of Iran at the shrimp culture site of Goatr. The results showed that the bacterial resistance to tetracycline, chloramphenicol, furazolidone, erythromycin, neomycin, ciprofloxacin and gentamicin were 20.69, 44.83, 58.62, 37.93, 45.45, 0 and 16.64% in hatcheries and 1.755, 0, 1.79, 58.93, 52.27, 0 and 27.90% in shrimp farms, respectively.
  A. Lari , A. Khodadadi and Y. Mortazavi
  The purpose of this research was to explore the effects of semiconducting metal oxides such as Ce0.75Zr0.25O2 (Ce–Zr), Ti0.75Zr0.25O2 (Ti–Zr), Zn0.75Zr0.25O2 (Zn–Zr), and Sn0.75Zr0.25O2 (Sn–Zr), on the performance of YSZ-based oxygen sensors. The semiconducting metal oxides used were prepared by a combustion method and then doped with 1.0 wt.% Pt by impregnation method. The sensors were exposed to synthetic exhaust gases with λ values in the range of 0.8–1.2. The sensors fabricated by Ce0.75Zr0.25O2 and Ti0.75Zr0.52O2 were shown to be independent of temperature variations and their low–high transitions took place just at about λ = 1. The sensor based on Zn0.75Zr0.25O2 also exhibited its transition at λ = 1, but its performance was affected by temperature changes. The behavior of the sensor based on Sn0.75Zr0.25O2 was observed to be temperature dependent and also its transition occurred at λ different from 1. By doping with Pt, the dependence of the sensors on temperature was eliminated to a large extent. Furthermore, the low–high transition for the sensors with λ different from 1 shifted to λ very close to 1. In fact, the presence of platinum reduces the boundary layer which in turn improves the ion conductivity of the sensor.
 
 
 
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