Abstract:
Objectives:During the last years with increasing resistant bacteria to the most antibiotics bacteriophages are suggested as appropriate treatment option. To investigate lytic activity of bacteriophages there are indirect microbial procedures and direct methods. The present study to complement microbial procedures and investigate ultra-structural characteristics of infection bacterium-phage use atomic force microscopy technique. Materials and Methods:The Siphoviridae bacteriophages were isolated from sewage at the Tertiary Pediatric Hospital. Bacteriophages (10×108 PFU/ml) were diluted and were mixed with 100 μl of methicillin resistant Staphylococcus aureus (MRSA) ATCC 33591 (1.5×108 CFU/ml). The tubes were incubated for 20 min at 37 °C, at intervals 10 min, 10 μl samples were removed and directly were investigated MRSA ATCC morphology, roughness parameter, 3D topography, cell height, and fast Fourier transform (FFT) by atomic force microscopy (AFM) technique. Concurrently turbidity assay were performed. Results:Concentration of MRSA ATCC No. 33591 strain after 10 min in phage-treated MRSA S3 (1.5×106 CFU/ml), S4 (1.5×105 CFU/ml), S5 (1.5×104 CFU/ml), S6 (1.5×103 CFU/ml) decreased 2-log, 3-log, 4-log, and 5-log respectively. The results AFM micrographs shown the most changes in bacterial morphology and 3D topography, destruction of cell wall, decrease of cell height, and loss of their shape after 10 min at phage-treated MRSA S3 (1.5×106 CFU/ml), S4 (1.5×105 CFU/ml), S5 (1.5×104 CFU/ml), S6 (1.5×103 CFU/ml) respectively . Conclusion:In this study MRSA ATCC ultra-structural changes in phage-treated MRSA ATCC groups directly were detected using AFM technique.
journal_name
Iran J Basic Med Scijournal_title
Iranian journal of basic medical sciencesauthors
Rahimzadeh G,Gill P,Rezai MSdoi
10.22038/ijbms.2019.31226.7521subject
Has Abstractpub_date
2019-03-01 00:00:00pages
290-295issue
3eissn
2008-3866issn
2008-3874journal_volume
22pub_type
杂志文章abstract:Objectives:Morbidity and mortality due to diabetes mellitus (DM) result in exorbitant psycho-economical costs, so there is a strong need to create new strategies and drugs for controlling DM. The aim of the current study was to investigate the anti-diabetic effect of the aqueous extract of Pterocarpus santalinus on str...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2019.34998.8325
更新日期:2019-08-01 00:00:00
abstract:Objectives:The main goal of the current research was to examine the effects of Berberine (BBR) on apoptotic signaling and hippocampal oxidative stress induced by common carotid artery occlusion. Materials and Methods:Chronic cerebral hypoperfusion (CCH) model was created by occluding the two common carotid arteries (t...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2018.31225.7534
更新日期:2019-02-01 00:00:00
abstract:Objectives:Interleukin-36 receptor antagonist (IL-36Ra) is a new member of the IL-1 family that exhibits anti-inflammatory activity in a variety of inflammatory and immune diseases. Our purpose was to determine the effect of IL-36Ra on liver injury in a mouse hepatitis model induced by concanavalin A (ConA). Materials...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.35614.8492
更新日期:2020-05-01 00:00:00
abstract:Objectives:This study aimed to investigate the glucose and lipid metabolism improving effect of the total flavonoids from Selaginella tamariscina (Beauv.) Spring (TFST) on db/db mice, and to study its mechanism of action. Materials and Methods:The db/db mice were divided into 5 groups: the normal group (NC), the diabe...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.40532.9594
更新日期:2020-10-01 00:00:00
abstract:Objectives:Prompt detection of extended-spectrum β-lactamases (ESBL) and carbapenemase-producing enterobacteriaceae is crucial for infection prevention and control strategies. The present study aimed to characterize the ESBL and carbapenemase genes among Enterobacter isolates from an Iranian inpatient population. Mate...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.41225.9752
更新日期:2020-09-01 00:00:00
abstract:Objectives:We investigated the role of nitric oxide (NO) in the protective effects of remote ischemic per-conditioning (rIPerC) on renal ischemia/reperfusion (I/R) injury in male rats. Materials and Methods:I/R treatment consisted of 45 min bilateral renal artery ischemia and 24 hr reperfusion interval. rIPerC was per...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2018.25810.6354
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVES:Cyclooxygenases (COXs) are known to play some roles in physiological mechanisms related to learning and memory. Since sodium salicylate is an inhibitor of COX, we have evaluated the effect of peripheral and intra-hippocampal administration of sodium salicylate on spatial learning and memory in male rats. MA...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVES:Intracerebral injection of bone marrow stromal cells (BMSCs) is being investigated as a therapeutic tool to prevent Alzheimer's disease (AD). Our aim was to investigate the effects of BMSCs by intrathecal injection in AD rat model. MATERIALS AND METHODS:BMSCs were obtained from the bone marrow of Wistar rat...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2015-05-01 00:00:00
abstract:OBJECTIVE(S):The effect of prolonged overtraining on cytokine kinetics was compared with moderate exercise in the present study. MATERIALS AND METHODS:Male Wistar rats were randomly divided into control sedentary (C), moderate trained (MT), (V=20 m/min, 30 min/day for 6 days a week, 8 weeks), overtrained (OT) (V=25 m/...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:Recently, we showed that some new synthetic compounds structurally related to cilostamide (4-(1,2-dihydro-2-oxoquinolin-6-hydroxy)- N-cyclohexyl-N-methylbutanamide), a selective phosphodiesterase 3 (PDE3) inhibitor, produce inotropic effect comparable to that of IBMX (3-isobutyl-1-methylxanthine), a non-sele...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.8831
更新日期:2017-06-01 00:00:00
abstract:Objective:The role of growth factors, including vascular endothelial growth factor of activated omentum on mitosis is clearly known, though not on all the aspects of in vitro oocyte maturation. This study was designed to assess the effect of activated-omental extract (AOE) on in vitro maturation (IVM) of rat cumulus-oo...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.9622
更新日期:2017-12-01 00:00:00
abstract:Objectives:In this study, we investigated the protective effects of piperine on lead acetate-induced renal damage in rat kidney tissue. Materials and Methods:Forty male rats were divided into 5 groups: negative control (rats were given aquadest daily), positive control (rats were given lead acetate 30 mg/kg BW orally ...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.9487
更新日期:2017-11-01 00:00:00
abstract:Objectives:Copper (Cu) is an essential dietary supplement in animal feeds, which plays an important role in maintaining the balance of all living organisms. Copper nanoparticles (nCu) participate in catalysing activities of multiple antioxidant/defensive enzymes and exerts pro-inflammatory and pro-apoptotic effects on ...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2019.35787.8526
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE(S):Carotenoids which are naturally synthesized by fungi such as yeasts can act as an antioxidant which is closely related to their ability to decrease the risk of a variety of degenerative diseases. In recent years, the increase of demand for carotenoids obtained from natural sources has promoted major effort...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-10-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to investigate the methylation status and mRNA expression levels of P15, death-associated protein kinase (DAPK), and suppressor of cytokine signaling-1 (SOCS1) genes in multiple myeloma (MM). MATERIALS AND METHODS:The bone marrow samples of 54 MM patients were collected and the met...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVES:Endometriosis is a complex gynecologic disease with unknown etiology. Noscapine has been introduced as a cancer cell suppressor. Endometriosis was considered as a cancer like disorder, The aim of present study was to investigate noscapine apoptotic effect on human endometriotic epithelial and stromal cells i...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVES:Parkinson's disease (PD) is a progressive neurological disorder associated with motor disabilities and cognitive dysfunction as well. Evidence indicates that PD occurs less frequently in women than men, confirming a role for steroid hormones in protection of dopaminergic nigrostriatal neurons. It is reported...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2016.7911
更新日期:2016-12-01 00:00:00
abstract:Objectives:The aims of the present study were to investigate the expression of calcium sensing receptor (CaSR) at different times in acute myocardial infarction (AMI) rat myocardial tissue after mouse embryonic stem cells (mESCs) transplantation treatment and to assess its effects on apoptosis and oxidative stress of c...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.47436.10916
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:Eukaryotic translation initiation factor 4E (eIF4E) is overexpressed in cervical cancer (CC). However, the molecular mechanisms are unclear. This study aimed to investigate the molecular mechanism of eIF4E gene overexpression in CC. MATERIALS AND METHODS:The human papillomavirus (HPV) type 18 E7 and eIF4E m...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2015-07-01 00:00:00
abstract:Objectives:This study was to investigate the antihyperlipidemic and antioxidant effect of total flavonoid extract from Actinidiakolomikta (TFAK) in hyperlipidemia induced by a high-fat diet. Materials and Methods:Male SD rats were randomly divided into 6 groups: normal group, model (hyperlipidemic diet) group, hyperli...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.9365
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVES:Increasing evidence in both experimental and clinical studies suggests that oxidative stress plays a major role in the pathogenesis of multiple sclerosis. The aim of the present work is to investigate the protective effects of erythropoietin against cuprizone-induced oxidative stress. MATERIALS AND METHODS:...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.9110
更新日期:2017-08-01 00:00:00
abstract:Objectives:Bacterial translocation in patients with cirrhosis is an important triggering factor for infections and mortality. In the bile duct ligation (BDL) model, crucial players of bacterial translocation are still unknown. This study aims to determine the interrelation between microbiome composition in the colon, m...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2019.36487.8753
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:Primary or adult type hypolactasia, the most common enzyme deficiency in the world, is due to reduced lactase activity in the intestinal cell after weaning. Lactase non-persistence is inherited as an autosomal recessive trait. A DNA variant, single nucleotide polymorphism C/T-13910 which is located on 13910 ...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2012-11-01 00:00:00
abstract:Objectives:Precision-cut tissue slices are considered an organotypic 3D model widely used in biomedical research. The comet assay is an important screening test for early genotoxicity risk assessment that is mainly applied on in vitro models. The aim of the present study was to provide a 3D organ system for determinati...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2019.30056.7242
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE(S):In the current study, the effects of selected folk medicinal herbs were evaluated in D-galactose-induced aging in male mice. MATERIALS AND METHODS:Male BALB/c mice were randomly divided into 12 groups composing sham, control, and treated groups. Aging was induced by administration of D-galactose (500 mg/k...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-11-01 00:00:00
abstract:Objectives:Adipose-derived stem cells (ADSCs), with suitable and easy access, are multipotential cells that have the ability for differentiation into other mesodermal and transdifferentiate into neural phenotype cells. In this study, Lithium chloride (LiCl) was used for in vitro transdifferentiation of rat ADSCs into n...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.41582.9820
更新日期:2020-04-01 00:00:00
abstract:Objectives:Periodontal diseases are among prevalent oral health problems which may ultimately lead to severe complications in oral cavity. Herbal products can be designed as single or multicomponent preparations for better oral health. This study aims to review current clinical trials on the effectiveness of herbal pro...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章,评审
doi:10.22038/IJBMS.2018.31997.7690
更新日期:2018-10-01 00:00:00
abstract:Objectives:Bacteriophages are infectious replicating entities that are under consideration as antimicrobial bioagents to control bacterial infections. As an alternative or supplement to antibiotics, bacteriophages can be used to circumvent the resistance to existing antibiotics. The aim of this study was to assess the ...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2019.37561.8989
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:Amyotrophic lateral sclerosis (ALS), a fatal progressive neurodegenerative disorder, is the most common motor neuron disease in European populations. Approximately 10% of ALS cases are familial (FALS) and the other patients are considered as sporadic ALS (SALS). Among many ALS causing genes that have been id...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVES:Naringin has been reported to regulate bone metabolism. However, its effect on osteogenesis remains unclear. The aim was to investigate the effect of naringin on osteogenic differentiation of human bone marrow mesenchymal stem cells (hBMSCs) through the activation of the ERK signaling pathway in osteogenic d...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.8582
更新日期:2017-04-01 00:00:00