1. North Research Center, Pasteur Institute of Iran, Amol, Iran. 2. Radiology Department, Valieas... more 1. North Research Center, Pasteur Institute of Iran, Amol, Iran. 2. Radiology Department, Valieasr Hospital, Social Security Organization, Ghaem Shahr, Iran . 3. Department of Genetics, Faculty of Medicine, Babol University o f Medical Sciences, Babol, Iran. 4. Department of Social Medicine and Health, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran. 5. Fatemeh Zahra Infertility and Reproductive Health Research Center, Babol University of Medical Sciences, Babol, Iran. 6. Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular –Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran. 7. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Science s Institute, Tehran University of Medical Sciences, Tehran, Iran.
SUMMARY Helicobacter pylori is a gram-negative bacteria which colonizes the gastric mucosa of hum... more SUMMARY Helicobacter pylori is a gram-negative bacteria which colonizes the gastric mucosa of humans and is implicated in a wide range of gastroduodenal diseases. This paper reviews the physiology of this bacterium as predicted from the sequenced genomes of two unrelated strains and reconciles these predictions with the literature. In general, the predicted capabilities are in good agreement with reported experimental observations. H. pylori is limited in carbohydrate utilization and will use amino acids, for which it has transporter systems, as sources of carbon. Energy can be generated by fermentation, and the bacterium possesses components necessary for both aerobic and anaerobic respiration. Sulfur metabolism is limited, whereas nitrogen metabolism is extensive. There is active uptake of DNA via transformation and ample restriction-modification activities. The cell contains numerous outer membrane proteins, some of which are porins or involved in iron uptake. Some of these outer...
International Journal of Food Agriculture and Environment, 2010
This research was carried out to study the effect of Azospirillum lipoferum on declining the cons... more This research was carried out to study the effect of Azospirillum lipoferum on declining the consumption of nitrogen fertilizer on two sunflower cultivars Armawireski and Alestar at the Research Station of the Faculty of Agriculture in Baku State University. The nitrogen fertilizer was applied in four levels (0, 70, 140 and 210 kg/ha) with or without inoculation of seeds by Azospirillum bacteria. The treated seeds were inoculated with peatbased inoculants of Azospirillum lipoferum, with 2x10 7 cells per g of carrier. A factorial experiment, conducted with three replications on the base of randomized complete block design, revealed that nitrogen fertilizer inoculation with Azospirillum could lead to increase in grain yield and yield components. Using nitrogen fertilizer and bacteria together caused declining of the use of nitrogen and increasing of the grain yield. Increasing the nitrogen fertilizer amount to 210 kg/ha and inoculation led to declining of yield to less than that of 140 kg/ha treatment. The results revealed that in the case of inoculation with Azospirillum lipoferum, the highest grain yield (5.14 t/ha) was produced and without inoculation the lowest grain yield (3.68 t/ha) was obtained. The results showed that the inoculation with Azospirillum increases the yield, percentage of nitrogen in grains, number of grains in a row, flag leaf area, head length and number of grains in head. It can be concluded that by using 140 kg of nitrogen fertilizer per hectare and inoculation of maize seeds by Azospirillum could decline the application of nitrogen fertilizer, increases the grain yield up to 30 percent and prevents the pollution of environment by extended sustainable agriculture.
2011 3rd International Conference on Electronics Computer Technology, 2011
... Jamuna Kanta Sing Dept. ... Extraction of signatures and essential information from bank cheq... more ... Jamuna Kanta Sing Dept. ... Extraction of signatures and essential information from bank cheques and other financial documents has been the main focus of researchers concerned with handwritten document analysis and recognition for the last few decades. ...
Introduction Hemoglobin Q-Iran (α75Asp→His) is an important member of the hemoglobin Q family, mo... more Introduction Hemoglobin Q-Iran (α75Asp→His) is an important member of the hemoglobin Q family, molecularly characterized by the replacement of aspartic acid by histidine. The first report of hemoglobin Q-Iran and the nomenclature of this hemoglobinopathy dates back to 1970. Iran is known as a country with a high prevalence of α- and β-thalassemia and different types of hemoglobinopathy. Many of these variants are yet to be identified as the practice of molecular laboratory techniques is limited in this part of the world. Applying such molecular methods, we report the first hemoglobin Q-Iran cases in Northern Iran. Case presentation An unusual band was detected in an isoelectric focusing test and cellulose acetate electrophoresis of a sample from a 22-year-old Iranian man from Mazandaran Province. Capillary zone electrophoresis analysis identified this band as hemoglobin Q. A similar band was also detected in his mother's electrophoresis (38 years, Iranian ethnicity). The cases u...
We present a novel microwell array platform suited for various cell-imaging assays where single c... more We present a novel microwell array platform suited for various cell-imaging assays where single cell resolution is important. The platform consists of an exchangeable silicon-glass microchip for cell biological applications and a custom made holder that fits in conventional ...
1. North Research Center, Pasteur Institute of Iran, Amol, Iran. 2. Radiology Department, Valieas... more 1. North Research Center, Pasteur Institute of Iran, Amol, Iran. 2. Radiology Department, Valieasr Hospital, Social Security Organization, Ghaem Shahr, Iran . 3. Department of Genetics, Faculty of Medicine, Babol University o f Medical Sciences, Babol, Iran. 4. Department of Social Medicine and Health, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran. 5. Fatemeh Zahra Infertility and Reproductive Health Research Center, Babol University of Medical Sciences, Babol, Iran. 6. Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular –Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran. 7. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Science s Institute, Tehran University of Medical Sciences, Tehran, Iran.
SUMMARY Helicobacter pylori is a gram-negative bacteria which colonizes the gastric mucosa of hum... more SUMMARY Helicobacter pylori is a gram-negative bacteria which colonizes the gastric mucosa of humans and is implicated in a wide range of gastroduodenal diseases. This paper reviews the physiology of this bacterium as predicted from the sequenced genomes of two unrelated strains and reconciles these predictions with the literature. In general, the predicted capabilities are in good agreement with reported experimental observations. H. pylori is limited in carbohydrate utilization and will use amino acids, for which it has transporter systems, as sources of carbon. Energy can be generated by fermentation, and the bacterium possesses components necessary for both aerobic and anaerobic respiration. Sulfur metabolism is limited, whereas nitrogen metabolism is extensive. There is active uptake of DNA via transformation and ample restriction-modification activities. The cell contains numerous outer membrane proteins, some of which are porins or involved in iron uptake. Some of these outer...
International Journal of Food Agriculture and Environment, 2010
This research was carried out to study the effect of Azospirillum lipoferum on declining the cons... more This research was carried out to study the effect of Azospirillum lipoferum on declining the consumption of nitrogen fertilizer on two sunflower cultivars Armawireski and Alestar at the Research Station of the Faculty of Agriculture in Baku State University. The nitrogen fertilizer was applied in four levels (0, 70, 140 and 210 kg/ha) with or without inoculation of seeds by Azospirillum bacteria. The treated seeds were inoculated with peatbased inoculants of Azospirillum lipoferum, with 2x10 7 cells per g of carrier. A factorial experiment, conducted with three replications on the base of randomized complete block design, revealed that nitrogen fertilizer inoculation with Azospirillum could lead to increase in grain yield and yield components. Using nitrogen fertilizer and bacteria together caused declining of the use of nitrogen and increasing of the grain yield. Increasing the nitrogen fertilizer amount to 210 kg/ha and inoculation led to declining of yield to less than that of 140 kg/ha treatment. The results revealed that in the case of inoculation with Azospirillum lipoferum, the highest grain yield (5.14 t/ha) was produced and without inoculation the lowest grain yield (3.68 t/ha) was obtained. The results showed that the inoculation with Azospirillum increases the yield, percentage of nitrogen in grains, number of grains in a row, flag leaf area, head length and number of grains in head. It can be concluded that by using 140 kg of nitrogen fertilizer per hectare and inoculation of maize seeds by Azospirillum could decline the application of nitrogen fertilizer, increases the grain yield up to 30 percent and prevents the pollution of environment by extended sustainable agriculture.
2011 3rd International Conference on Electronics Computer Technology, 2011
... Jamuna Kanta Sing Dept. ... Extraction of signatures and essential information from bank cheq... more ... Jamuna Kanta Sing Dept. ... Extraction of signatures and essential information from bank cheques and other financial documents has been the main focus of researchers concerned with handwritten document analysis and recognition for the last few decades. ...
Introduction Hemoglobin Q-Iran (α75Asp→His) is an important member of the hemoglobin Q family, mo... more Introduction Hemoglobin Q-Iran (α75Asp→His) is an important member of the hemoglobin Q family, molecularly characterized by the replacement of aspartic acid by histidine. The first report of hemoglobin Q-Iran and the nomenclature of this hemoglobinopathy dates back to 1970. Iran is known as a country with a high prevalence of α- and β-thalassemia and different types of hemoglobinopathy. Many of these variants are yet to be identified as the practice of molecular laboratory techniques is limited in this part of the world. Applying such molecular methods, we report the first hemoglobin Q-Iran cases in Northern Iran. Case presentation An unusual band was detected in an isoelectric focusing test and cellulose acetate electrophoresis of a sample from a 22-year-old Iranian man from Mazandaran Province. Capillary zone electrophoresis analysis identified this band as hemoglobin Q. A similar band was also detected in his mother's electrophoresis (38 years, Iranian ethnicity). The cases u...
We present a novel microwell array platform suited for various cell-imaging assays where single c... more We present a novel microwell array platform suited for various cell-imaging assays where single cell resolution is important. The platform consists of an exchangeable silicon-glass microchip for cell biological applications and a custom made holder that fits in conventional ...
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Papers by Mohammad Khorshidi