Mohammad Khorshidi - Profile on Academia.edu (original) (raw)

Papers by Mohammad Khorshidi

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.

Effect of Irrigation on Potatoes Water Use Efficiency and Tuber Yield

بررسی همراهی بین دنسیتومتری استخوان های ران و ستون فقرات با شاخص های تن سنجی در زنان یائسه شهر کرمان

Microbiology and Molecular Biology Reviews, 1999

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...

The role of Azospirillum lipoferum bacteria in sustainable production of sunflower (Helianthus annuus L.)

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.

Journal of Hard Tissue Biology, 2005

Type IV collagen, the major component of basement membrane (BM), demonstrates a stage-and positio... more Type IV collagen, the major component of basement membrane (BM), demonstrates a stage-and position-specific distribution of its isoforms during tooth development. To determine its localization in BM of odontogenic neoplasms, immunohistochemistry using six anti-(IV) chain-specific monoclonal antibodies was performed. Expression of 1(IV)/ 2(IV) and 5(IV)/ 6(IV) chains was stronger in the desmoplastic than in ordinary ameloblastomas. The adenomatoid odontogenic tumor distinctly expressed these chains in BM of cribriform areas and hyaline materials (which was also 4(IV)-positive. These five chains also stained BM and tumor cells of ameloblastic fibroma. Present results suggest that collagen IV composition and distribution in the basement membranes of odontogenic neoplasms plays a key role in tumor growth and progression.

Offline signature verification using geometric and orientation features with multiple experts fusion

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. ...

Oman Medical Journal, 2013

Objectives: Low Birth Weight (LBW) has an important role in the mortality and morbidity of neonat... more Objectives: Low Birth Weight (LBW) has an important role in the mortality and morbidity of neonates and the incidence of LBW may vary across different environments. The aim of this study was to determine the incidence and some related factors of LBW in Mazandaran province, Northern Iran. Methods: In this longitudinal study, all live births that were born in 5 maternity hospitals in Mazandaran province, north of Iran in 2011, were evaluated. Data including birth weight, sex, maternal age, gestational age, living location, number of pregnancy and delivery, as well as multiple births were recorded in medical files. LBW neonates were compared with neonates whose birth weight was more than 2,500 gram (control group). Results: Out of 3792 infants, 2.9% (CI 95%: 2.3-3.3) were of low birth weight. Sixty percent of the infants in the LBW group and 8.3% in the control group were preterm, (p<0.001). In the LBW group, 22.2% were multiple births, while 0.5% in control group were multiple births (p<0.001), but other variable distributions such as sex, living location and mother's age did not differ between the LBW and the control groups (p>0.05). Conclusion: Results show that the incidence of LBW in Mazandaran was low and prevention of preterm labor, educational intervention programs for high risk can be effective in the prevention of low birth weight.

Journal of Medical Case Reports, 2012

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...

Journal of Clinical Laboratory Analysis, 2007

1,25(OH) 2 D 3 , exerting its biological effects through the vitamin-D receptor (VDR), plays a ro... more 1,25(OH) 2 D 3 , exerting its biological effects through the vitamin-D receptor (VDR), plays a role in the modulation of the human immune system. The aim of this study was to test for the presence of an association between VDR gene polymorphism and the susceptibility to Graves' disease (GD) for Taiwanese Chinese. Using a polymerase chain reaction (PCR)-based restriction analysis, we screened the VDR exon 2 start codon T/C (VDR-FokI) polymorphism to determine the genotypes for 88 GD patients and 90 normal controls. From the genotype analysis, GD patients featured a greater proportion of the CC genotype (44.3%) and a smaller proportion of the TT genotype (12.5%) than was the case for normal controls (CC: 23.3% and TT: 28.9%; chi-squared test, P 5 0.003). The odds ratios (ORs) for the risk of the CC genotype's appearance compared with the corresponding values for the TT and TC genotypes, for the GD patient group, were, 4.39 (95% confidence interval [CI]: 1.82-10.61) and 2.10 (95% CI: 1.06-4.18), respectively. With respect to the allelic analysis, we observed significantly increased C-allele (65.9%) and decreased T-allele (34.1%) frequencies among GD patients compared to normal controls (C: 47.2% and T: 52.8%; chi-squared test, P 5 0.002). The OR for the risk of appearance of the C allele in the GD-patient group was 1.93 (95% CI: 1.27-2.95). In conclusion, the VDR-FokI T/C polymorphism might be able to be used as a genetic marker to predict the likelihood of GD development.

FEBS Letters, 1982

Digestion of affinity-purified laminin by coffee bean aD -galactosidase One unit of coffee bean c... more Digestion of affinity-purified laminin by coffee bean aD -galactosidase One unit of coffee bean ct-D-galactosidase was added to affinity-purified laminin (500/~g) dissolved

Biomedical Microdevices

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 ...