Publications by authors named "Behnaz Saffar"

Many recent studies have been conducted to find new DNA vaccines based on Toxoplasma gondii antigens. DNA vaccines encoding complex of different antigens showed better immune responses compared to single antigen vaccine. In this study, we constructed a DNA vaccine encoding SAG1, SAG3, MIC4, GRA5, GRA7, AMA1 and BAG1 against T.

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Background: Infectious bovine rhinotracheitis (IBR) is an important economic viral disease, which is caused by bovine herpesvirus-1. BHV1-UL25 plays an important role in the encapsidation process and the stabilization of the packaged DNA into the capsid. The application of lentiviral mediated shRNAs for knocking down the target genes is a powerful antiviral approach.

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Heat- and pH-stable phytase efficiently hydrolyzes phytic acid. In this research, heat- and pH-stable mutant phytases, TR, LR, and TR/LR were generated by site-directed mutagenesis from Yersinia intermedia. After the induction and expression of recombinant wild-type and mutant phytases in E.

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Border disease is believed to be one of the most important diseases in the animal husbandry industry, which has not yet been eradicated in Iran. The development of approaches based on the application of interfering RNA (RNAi) for antiviral therapy has attracted a great deal of attention over the recent years. The present research was conducted to design, construct, and apply shRNA against the NS3 gene of BDV to evaluate the prevention of BDV proliferation in the cell culture system.

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Article Synopsis
  • A high-sensitivity electrochemical aptasensor was developed to detect streptomycin residues in animal products, which is crucial for consumer health safety.
  • The sensor features a graphite electrode coated with graphene and gold nanoparticles, along with specific aptamers that bind to streptomycin, monitored using techniques like SEM and FTIR.
  • The aptasensor showed excellent performance with a detection range from 10 to 10 M and a low detection limit of 0.8 × 10 M, proving to be a fast, cost-effective, and highly selective tool for detecting streptomycin in dairy products.
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Phytase is used in poultry diets to hydrolyze and release of phytate-bound phosphorus. Immobilization on nanomaterials optimizes enzyme's thermal stability and reusability. This study aimed to immobilize the recombinant phytase from Yersinia intermedia on the surface of amino-multi-walled carbon nanotubes (amino-MWCNTs) by physical adsorption.

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Background: Contagious ecthyma or Orf is known as a zoonotic disease remains prevalently worldwide despite the application of some control strategies against it. RNAi particularly shRNA provides us with the chance to tackle this obstacle by an encouraging new approach. The current study indicates the design and experiment of third-generation lentivirus packaging systems delivering shRNAs to inhibit Orf virus (ORFV) replication and infection.

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Background: Defensin peptide isolated from plants are often heterogeneous in length, sequence and structure, but they are mostly small, cationic and amphipathic. Plant defensins exhibit broad-spectrum antibacterial and antifungal activities against Gram-positive and Gram-negative bacteria, fungi and etc. Plant defensins also play an important role in innate immunity, such as heavy metal and some abiotic stresses tolerance.

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Background: We analyzed the Y-chromosome haplogroups of six documented Arab subpopulations that accommodated separately in different counties of Chaharmahal and Bakhtiari Province but nowadays speak Indo-European language (Luri and Farsi).

Methods: This was an outcome study conducted in 2015 to test whether there was any genetic relatedness among some Indo-European-speaking Arab subpopulation accommodated in a geographically similar region, Chaharmahal and Bakhtiari Province, Iran. Seven main Y-chromosome bi-allelic markers were genotyped in six documented Arab subpopulations.

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Heavy metal pollutants such as Cd, Hg, Pb, As, and Se are considered as both a global problem and a growing threat to the humanity. Being strongly poisonous to the metal-sensitive enzymes and leading to the growth inhibition and death of organisms, these metals have a toxic impact on the plants and animals. Inducing the metal-binding cysteine-rich peptides such as metallothioneins, phytochelatins, and defensins, higher organisms like plants and animals usually react to the heavy metal stress.

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Taxol or paclitaxel, an approved drug by the Food and Drug Administration, is being used for the treatment of human cancers. This study aimed to isolate and determine different species of native endophytic fungi from Iranian Taxus baccata (yew) plants located in the northern forests of Iran. To do so, a novel molecular screening approach was performed for 50 isolated endophytic fungi through amplification of exon No.

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Hepcidin25 is a small cysteine-rich peptide hormone known as a new class of antimicrobial peptides. The purpose of the present study was to express, purify and investigate the antibacterial properties of recombinant human hepcidin25 protein production in Escherichia coli. Human hepcidin25 gene was optimized and fused to a small ubiquitin-related modifier (SUMO) gene for higher expression.

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Renilla luciferase is a bioluminescent enzyme which is broadly used as a reporter protein in molecular biosensors. In this study, a novel luciferase with desired light emission wavelength and thermostability is reported. The results indicated that the new luciferase, namely super RLuc8, had a red-shifted spectrum and showed stable light emission.

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Background: Phytate is an anti-nutritional factor in plants, which catches the most phosphorus contents and some vital minerals. Therefore, Phytase is added mainly as an additive to the monogastric animals' foods to hydrolyze phytate and increase absorption of phosphorus.

Objectives: phytase is a new phytase with special characteristics such as high specific activity, pH stability, and thermostability.

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Codon usage bias has been observed in various organisms. In this study, the correlation between SHH genes expression in some tissues and codon usage features was analyzed by bioinformatics. We found that translational selection may act on compositional features of this set of genes.

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A novel cell surface display system for metal uptake was developed using CS3 pili of enterotoxigenic Escherichia coli, which is a suitable system for display of heterologous peptides. The recombinant bacteria producing the hybrid pili containing the hexahistidine peptide accumulated high concentrations of Cd(2+) and Ni(2+) at 656.2 and 276.

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