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Articles by A.G. Ebadi
Total Records ( 4 ) for A.G. Ebadi
  H. Sedghi , S. Zare , H. Hayatgeibi , S. Alivandi and A.G. Ebadi
  This study investigated the bio-effects of 50 Hz MF exposure on some Immunological factors (ACTH, cortisol and glucose levels) in male Guinea pigs. The capacity of 50 Hz Electromagnetic Fields (EMF) to interfere in the weakness of endocrine system has been a relevant fact into the scientific community, since we are more susceptible for this kind of exposure, in modern days. The 60-day-old Guinea pigs, which average of weight was 350-400 g, the Guinea pigs were divided in two groups, one of them was the control group while the other one suffered interference of a variable EMF of 50 Hz, intensity 0.207μT, 4 hours a day, for a 5 consecutive he results were collected by the weight comparison before and after of the exposure period, as well as the cortisol and glucose levels. These facts are strongly linked with the immunological system. After 5 days, the animals were anaesthetized and had their blood withdrew from their hearts. The samples produced serum where ACTH (quimiluminescent method), cortisol (radioimunoassay method) and glucose (oxidative method) levels were evaluated. The results showed that 50 Hz EMF acted on rats without any significant weight change, but affecting ACTH,cortisol and glucose levels in a significant way, 33.06% (p=0.033); 27.00% (p=0.004) and 56.23% (p=0.014) respectively when were compared with the control group. For this reason, EMF is able to change the serum levels of ACTH, cortisol and glucose, possible changing the endocrinological regulations.
  A.G. Ebadi and M. Shokrzadeh
  Main purpose of this study levels of some organochlorine pesticides were determined in milk samples of mothers living in two agricultural cities of Iran (Sari and Babol in Mazandaran province) in order to assess the trends of woman workers exposure to persistent pollutants. The milk samples gathered from breastfeeding women routine determination of OCPs was performed with GC/ECD. The resulte showed the highest amounts were found for p,p`-DDE, which was 0.056 μg g-1 in fat in Sari and 0.045 μg g-1 fat in Babol , followed by β-HCH, which was 0.037 μg g-1 fat and 0.024 μg g-1 fat, respectively. The low level of OCPs in human milk as found in the present study support the Iranian policy of encouraging breast-feeding. The fact that the mother breast-feeds her child and that she originally comes from a region where DDT is still in use as a vector control agent, as well as the former use of organochlorine pesticides OCPs in agriculture, seems to be the main factors for high DDT and other OCP residues in the mothers` milk.
  M. Shokrzadeh , P. Valipour and A.G. Ebadi
  Rice is a major worldwide crop that cultivated in the most areas of the north of Iran (Mazandaran and Gillan Province). An increase in the assortment of rice varieties is making it progressively more difficult to distinguish between the many cultivars by traditional visual identification methods. The more advanced identification techniques of electrophoresis and chromatography offer an effective solution to this emerging identification dilemma. This paper reviews the application of these two evaluation techniques. An Electrophoresis analysis includes gel electrophoresis and capillary electrophoresis and compares them with a popular chromatography technique, namely reversed-phase, size exclusion anion-exchange high performance liquid chromatography (HPLC). This paper will also include an interpretation of the results.
  H. Sedghi , S. Zare , H. Hayatgeibi , S. Alivandi and A.G. Ebadi
  There are several reports that indicate a linkage between exposures to power frequency (50-60 Hz) magnetic fields with abnormalities in the serum biochemical parameters. The present study was designed to understand whether power frequency magnetic fields could act as an environmental insult and invoke any biochemical changes in Guinea pigs. Male Guinea pigs were randomly divided into four groups each comprising of 36 animals. Group 1 as control was found sham-exposed animals. Groups 2 to 4 exposed to 50 Hz (0.0207 μT) in three different times (1, 2 and 4 h), respectively for 5 consecutive days. We found significant decreases in the levels of total protein, β- and y-globulins and in the activities of γ-glutamyltranspeptidase and malate dehydrogenase. The activity of aspartate aminotransferase decreased, but the activity of alanine aminotransferase was unchanged. Total lipid, cholesterol, triglycerides and pre-β-lipoproteins decreased, but α-lipoproteins, glucoseand cortisol levels increased. The most pronounced changes in the biochemical parameters studied were found in workers with the longest exposure to an electromagnetic field.
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