Hamideh Mahmoodzadeh Hosseini

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Gene silencing due to DNA hypermethylation is a major mechanism for loss of tumor suppressor genes function in colorectal cancer. Activating V600E mutation in BRAF gene has been linked with widespread methylation of CpG islands in sporadic colorectal cancers. The aim of the present study was to evaluate the methylation status of three cancer-related genes,(More)
Bioactive glass (BG) composites with a base of SiO2-Na2O-CaO-P2O5 are biocompatible biomaterials. The assessment of their abilities for medical applications has interested researchers. We produced a BG-containing SiO2-MgO-CaO-P2O5 by the sol-gel method. To determine the antibacterial effects, we analyzed the minimal inhibitory concentration (MIC) and(More)
BACKGROUND Due to the emergence of drug resistance in herpes simplex virus type 1 (HSV-1), researchers are trying to find other methods for treating herpes simplex virus type 1 infections. Probiotic bacteria are effective in macrophage activation and may have antiviral activities. OBJECTIVE This study aimed at verifying the direct effect of Lactobacillus(More)
Exosomes (EXO) are acellular vehicles used for cancer immunotherapy due to their immune inducing properties. To identify whether designed structure based on tumoral EXO have a cytotoxic effect together with a potent immunological property, we synthesized a novel structure based on EXO and staphylococcal entrotoxin B (SEB), two immune inducer substances, and(More)
Probiotics are live microbial food supplements or their components, which have been shown to have beneficial effects on human health. Probiotics can be bacteria, molds, or yeasts, but most of them fall into the group known as lactic acid bacteria and are normally consumed in the form of yogurt, fermented milk, or other fermented foods. Data from clinical(More)
An exosome is a nano vesicle that buds from the endosomal compartment; it is produced and released by all kinds of mammalian cells. This vesicle contains a variety of proteins, lipids, mRNAs and miRNAs. These components are specific to the origin of the exosomes and contribute to cell-cell communications. Recently, it has been reported that a few single(More)
The prevalence of allergic diseases among infants is increasing particularly in developed countries. Although, the exact reason is not clear yet, one of the most probable explanations is reducing microbial exposure during early life and consequent alteration of gut microbiota. Various factors including delivery mode, infant`s diet, environment and(More)
BACKGROUND The pathogenicity of Staphylococcus aureus is based on the production of various virulence factors. The frequency of these factors can markedly differ according to the geographical region. MATERIALS AND METHODS In this study, we investigated the prevalence of two frequent isoforms of exfoliative toxins and mecA genes using PCR in 197 clinical(More)
A new recombinant construct made up of two components, texosomes (TEX) and staphylococcal enterotoxin B (SEB), showed cytostatic properties against several types of tumor cells in vitro. Here, we aimed to assess the construct’s antitumor immunogenicity in a murine tumor model. SEB was anchored onto purified texosomes and was used for immunization of mice(More)
Staphylococcus aureus (S. aureus) is considered as a notorious nosocomial pathogen among hospitalized patients and community-dwelling subjects. Its increasing morbidity and mortality is believed to be due to antibiotic resistance. However, the data concerning molecular properties of infecting strains are few. In this study, a total of 192 S. aureus strains,(More)