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Sheikhzadeh BH, Rahbarnia L, Dehnad A, Naghili B, Saffarian P. The high cross-transmission in methicillin resistant Staphylococcus aureus between healthy and patient communities. Iran J Microbiol 2023; 15:408-413. [PMID: 37448680 PMCID: PMC10336293 DOI: 10.18502/ijm.v15i3.12901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Background and Objectives Methicillin-resistant Staphylococcus aureus (MRSA) is one of the main causes of high mortality and morbidity in hospitals. This study was aimed to examine virulence factors, molecular typing, and the antibiotic resistance pattern of MRSA isolates in hemodialysis patients and healthy communities. Materials and Methods Total of 231 and 400 nasal samples were obtained from hemodialysis patients and healthy communities, respectively. Virulence factors profile was examined in two groups by PCR reaction. Enterobacterial Repetitive Intergenic Consensus (ERIC-PCR) was used as a molecular typing approach. Results Overall, 35.49% (82/231) of hemodialysis patients were positive for S. aureus, and 47.56% (39/82) of isolates were positive for mecA. In a healthy community, 15% (60/400) of samples were positive for S. aureus, and 36.66% (22/60) were positive for mecA. The frequency of MDR was significantly higher in patients group (p-value < 0.00001). The frequency of pvl (p.value = 0.003932, P<0.05) and tsst-1 (p.value = 0.003173, p < .05) were significantly higher in patients group. The highest frequency virulence factors in healthy individuals were related to hla (68.33%, 41/60), hlb (53.33%, 32/60), and Acme/arcA (46.66%) genes. Two groups were clustered by the ERIC-PCR method into 7 clusters and 2 single isolate with a 0.74 similarity index. Based on the results, each cluster was combination with healthy and patient isolates. Conclusion Our findings indicate a notable variation in the frequency of virulence factors between S. aureus isolates obtained from dialysis patients and the healthy community.
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Affiliation(s)
- Behnood Haji Sheikhzadeh
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Leila Rahbarnia
- Department of Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Dehnad
- Department of Bacterial Disease Research, Razi Vaccine and Serum Research Institute, AREEO, Tabriz, Iran
| | - Behrooz Naghili
- Department of Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parvaneh Saffarian
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Farajnia S, Lotfi F, Dehnad A, Shojaie M, Raisi R, Rahbarnia L, Bazmani A, Naghili B, Shiry S. The molecular characterization of colistin-resistant isolates of Acinetobacter baumannii from patients at intensive care units. Iran J Microbiol 2022; 14:319-327. [PMID: 37124847 PMCID: PMC10132339 DOI: 10.18502/ijm.v14i3.9768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Background and Objectives The objective of this study was to determine molecular characterization and genetic diversity of colistin-resistant A. baumannii clinical isolates in Intensive Care Unit hospitalized patients. Materials and Methods A total of 127 A. baumannii clinical isolates were evaluated for antimicrobial susceptibility. PCR reaction and sequencing were performed for the detection of mutations in pmrAB and lpx ACD genes. Results Based on antimicrobial susceptibility testing, 40.94% and 33.85% of the isolates were MDR and XDR respectively whereas 3.93% of them were found to be PDR. Results of agar dilution MIC and E-test indicated that 76% of the isolates were sensitive to colistin. All of the isolates were positive for bla OXA-51 and 50% of them were positive for both bla OXA-23 -like and bla OXA-143 -like genes while only 25% of the isolates were positive for bla OXA-72 . None of them were positive for the bla OXA-58 -like gene. There is no mutation in pmrA. The V162A substitution for pmrB gene was repeated in two isolates, and E394D and Y292H substitutions in lpxA were observed in two isolates; also, C120R and F165L substitutions in lpxC gene was repeated in two isolates. Analysis of phylogenetic tree based on alterations in lpxACD and pmrB genes indicated the appearance of new isolates compared to the reference strain ATCC17978 A. baumannii isolates. Conclusion The present study indicated the prevalence of MDR and XDR A. baumannii isolates and the emergence of PDR isolates in the northwest portion of Iran. The appearance of colistin-resistant isolates with new mutations in pmrB, lpxACD genes indicates new resistance mechanisms.
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Affiliation(s)
- Safar Farajnia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fariba Lotfi
- Department of Biological Sciences, Faculty of Basic Sciences, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Alireza Dehnad
- Department of Biotechnology, East Azerbaijan Research and Education Center Agricultural and Natural Resources, Razi Vaccine and Serum Research Institute, AREEO, Tabriz, Iran
| | - Maryam Shojaie
- Department of Biological Sciences, Faculty of Basic Sciences, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Roya Raisi
- Department of Biological Sciences, Faculty of Basic Sciences, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Leila Rahbarnia
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Corresponding author: Leila Rahbarnia, Ph.D, Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. Tel: +98-9141199054 Fax: +98-4135428595
| | - Ahad Bazmani
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behrooz Naghili
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samaneh Shiry
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Mazloumi Z, Farahzadi R, Rafat A, Asl KD, Karimipour M, Montazer M, Movassaghpour AA, Dehnad A, Charoudeh HN. Effect of aberrant DNA methylation on cancer stem cell properties. Exp Mol Pathol 2022; 125:104757. [PMID: 35339454 DOI: 10.1016/j.yexmp.2022.104757] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 03/09/2022] [Accepted: 03/19/2022] [Indexed: 12/21/2022]
Abstract
DNA methylation, as an epigenetic mechanism, occurs by adding a methyl group of cytosines in position 5 by DNA methyltransferases and has essential roles in cellular function, especially in the transcriptional regulation of embryonic and adult stem cells. Hypomethylation and hypermethylation cause either the expression or inhibition of genes, and there is a tight balance between regulating the activation or repression of genes in normal cellular activity. Abnormal methylation is well-known hallmark of cancer development and progression and can switch normal stem cells into cancer stem cells. Cancer Stem Cells (CSCs) are minor populations of tumor cells that exhibit unique properties such as self-regeneration, resistance to chemotherapy, and high ability of metastasis. The purpose of this paper is to show how aberrant DNA methylation accumulation affects self-renewal, differentiation, multidrug-resistant, and metastasis processes in cancer stem cells.
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Affiliation(s)
- Zeinab Mazloumi
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Raheleh Farahzadi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Rafat
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khadijeh Dizaji Asl
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Karimipour
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Montazer
- Department of Cardiovascular Surgery, Imam Reza Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Alireza Dehnad
- Department of Bacterial Disease Research, Razi Vaccine and Serum Research Institute, AREEO, Tabriz, Iran
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Lotfi F, Shojaie M, Rahbarnia L, Dehnad A, Naghili B, Lotfi H. Molecular characterization and genetic diversity of multidrug- and extensively drug-resistant A. baumannii clinical isolates. Gene Reports 2022. [DOI: 10.1016/j.genrep.2021.101455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dehnad A, Agdam MHG, Rahbarnia L, Naghili B, Saffarian P. Detection of hemolysine genes in methicillin-resistant S. aureus isolates obtained from a healthy population in north-west of Iran. Gene Reports 2020. [DOI: 10.1016/j.genrep.2020.100874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mohammadi S, Barzegari A, Dehnad A, Barar J, Omidi Y. Astaxanthin protects mesenchymal stem cells from oxidative stress by direct scavenging of free radicals and modulation of cell signaling. Chem Biol Interact 2020; 333:109324. [PMID: 33212048 DOI: 10.1016/j.cbi.2020.109324] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/20/2020] [Accepted: 11/12/2020] [Indexed: 02/08/2023]
Abstract
Recent evidence has shown that mesenchymal stem cells (MSCs) play vital roles in cell therapy of ischemia/hypoxia damaged tissues. However, after the transplantation, they might undergo apoptosis due to oxidative stress. Thus, some strategies have been developed to support stem cells in harsh conditions, including pre-treatment of the cells with antioxidants. Of various antioxidants, in this study, astaxanthin (ATX) was used to protect adipose-derived MSCs against oxidative stress. The MSCs were exposed to different doses of hydrogen peroxide, and then the expression of key genes involved in the redox signaling pathway was studied, including nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), and NADPH quinine oxidoreductase 1 (NQO1). The balance of intracellular reactive oxygen species was detected with the H2DCFDA molecular probe. Additionally, for the detection of apoptosis and protective effect of ATX, the DAPI/Phallacidin and annexin V cell staining were performed. The results of cellular studies revealed that ATX reduced the H2O2-induced cell apoptosis and oxidative stress. Furthermore, after the induction of oxidative stress, the cells' native antioxidants (HO-1 and NQO1) were overexpressed but they were modulated with ATX treatments (p < 0.023). Based on our findings, ATX could increase the expression of Nrf2 as a key transcription factor of antioxidant enzymes (p < 0.05). These findings support the notion that ATX can act as an effective antioxidant in the pre-treatment of MSCs before cell therapy. Thus, to enhance the viability of stem cells during the transplantation in harsh conditions, the concurrent use of ATX in cell therapy modalities is proposed.
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Affiliation(s)
- Solmaz Mohammadi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biology, Higher Education Institute of Rabe-Rashid, Tabriz, Iran
| | - Abolfazl Barzegari
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Dehnad
- Department of Biology, Higher Education Institute of Rabe-Rashid, Tabriz, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, Florida 33328, USA.
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Homayouni A, Rezaei Mokarram R, Norouzi S, Dehnad A, Barkhordari A, Homayouni H, Pourjafar H. Soy ice cream as a carrier for efficient delivering of Lactobacillus casei. ACTA ACUST UNITED AC 2020. [DOI: 10.1108/nfs-11-2019-0349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
Among soy products, soy ice cream with neutral pH, high total solids contents and prebiotic oligosaccharides is an appropriate vehicle for probiotics. The purpose of this paper is to survey soy ice cream as a carrier for the efficient delivering of Lactobacillus casei, or L. casei.
Design/methodology/approach
Probiotic soy ice cream containing L. casei was produced via the powder of soy milk. The physicochemical and organoleptic properties of the product were assessed. Also, the viability of L. casei was surveyed over a 180-day period of storage at −25 °C.
Findings
The density characteristic of probiotic soy ice cream demonstrated a significant rise (P < 0.05). The result of the viability analysis showed significant alterations in the number of probiotics in this product after freezing and throughout the 180-day period (P < 0.05). The most noticeable drop was seen throughout the first 60 days about 1.83 logs after that the trend of survival of this probiotic strain leveled off over the next 120 days. Also, no significant differences were found in the organoleptic properties of both ice creams.
Originality/value
Soy ice cream with prebiotic elements protected the growing and activity of probiotic bacteria. The results showed that L. casei is a good probiotic for soy ice cream.
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Mamipour M, Yousefi M, Dehnad A, Faridvand Y, Zarezadeh R, Khaksar M, Pouyafar A, Rahbarghazi R. Protective effect of bacterial lipase on lipopolysaccharide-induced toxicity in rat cardiomyocytes; H9C2 cell line. J Cardiovasc Thorac Res 2019; 12:35-42. [PMID: 32211136 PMCID: PMC7080329 DOI: 10.34172/jcvtr.2020.06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 12/04/2019] [Indexed: 12/11/2022] Open
Abstract
Introduction: Cardiovascular system is highly sensitive to LPS-induced oxidative damage. This study aimed to show the inhibitory effect of bacterial Lipase on LPS-induced cardiomyoblasts toxicity. Methods: Rat cardiomyoblasts H9C2 were classified into Control, LPS (cells received 0.1, 1 and 10 μg/mL LPS) and LPS+ Lipase groups. In LPS+Lipase group, different concentrations of lipopolysaccharide were pre-incubated with 5 mg/mL bacterial lipase at 37˚C overnight prior to cell treatment. After 72 hours, cell viability was assessed by MTT assay. The expression of key genes related to toll-like receptor signaling pathways was assessed by real-time PCR assay. Percentage of fatty acids was evaluated in each group using gas chromatography assay. The levels of NO was also measured using the Griess reaction. Results: Data showed H9C2 cells viability was decreased after exposure to LPS in a dose-dependent manner (P < 0.05). Incubation of LPS with lipase increased cell survival rate and closed to near-to-control levels (P < 0.05). Lipase had the potential to blunt the increased expression of IRAK and NF-κB in cells after exposure to the LPS. Compared to the LPS group, lipase attenuated the increased level of NO-induced by LPS (P < 0.05). Gas chromatography analysis showed the reduction of saturated fatty acids in cells from LPS group while the activity of lipase prohibited impact of LPS on cell fatty acid composition. LPS decreased the ability of cardiomyoblasts to form colonies. Incubation of LPS with lipase enhanced clonogenic capacity. Conclusion: Reduction in lipopolysaccharide-induced cytotoxicity is possibly related to lipase activity and reduction of modified lipopolysaccharide with toll-like receptor.
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Affiliation(s)
- Mina Mamipour
- Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran.,Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammadreza Yousefi
- Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran.,Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Dehnad
- Biotechnology Department, East Azerbaijan Research and Education Center Agricultural and Natural Resources, AREEO, Tabriz, Iran.,Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran.,Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yousef Faridvand
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Zarezadeh
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Khaksar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ayda Pouyafar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Ghavghani FR, Rahbarnia L, Naghili B, Dehnad A, Bazmani A, Varshochi M, Ghaffari Agdam MH. Nasal and extra nasal MRSA colonization in hemodialysis patients of north-west of Iran. BMC Res Notes 2019; 12:260. [PMID: 31077228 PMCID: PMC6509970 DOI: 10.1186/s13104-019-4298-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 05/03/2019] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES Methicillin resistant Staphylococcus (S.) aureus colonization is one of the main causes of serious infections in hemodialysis patients. This cross-sectional study was performed to examine prevalence of MRSA colonization and evaluation of risk factors in hemodialysis patients. A total of 560 swab samples from nasal, the skin around catheter and throat were collected from 231 hemodialysis patients in Tabriz. The standard biochemical tests were used for identification of S. aureus isolates. Antimicrobial susceptibility profile was determined against 11 antibiotics by the disk diffusion method. Phenotypic test of S. aureus was performed using novobiocin 30 μg/disc, and methicillin sensitivity test was performed by cefoxitin 30 μg/disc. RESULTS Overall, 50.65% (118/231) hemodialysis patients were positive for S. aureus which 34.93% (80/231) of patients were MRSA carriage. The MRSA colonization in patients with a catheter (44.06%) was more than individuals utilizing a fistula (24.57%, p = 0.030). Among sampling sites, the highest MRSA was related to nasal samples (30.70%, p < 0.00001). Extra nasal colonization of S. aureus was observed in 12.71% patients. The highest rates of resistance were observed against ampicillin (93.98%) and the highest sensitivity was against linezolid antibiotic (5.42%). These findings highlight the necessity of prophylaxis against S. aureus in individuals under dialysis.
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Affiliation(s)
- Fatemeh Ravanbakhsh Ghavghani
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, P.O.Box; 5163639888, Tabriz, Iran
| | - Leila Rahbarnia
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, P.O.Box; 5163639888, Tabriz, Iran. .,Higher Education Institute of Rab-Rashid, Tabriz, Iran, Tabriz, Iran.
| | - Behrooz Naghili
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, P.O.Box; 5163639888, Tabriz, Iran
| | - Alireza Dehnad
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, P.O.Box; 5163639888, Tabriz, Iran.,Higher Education Institute of Rab-Rashid, Tabriz, Iran, Tabriz, Iran.,Biotechnology Department, East Azerbaijan Research and Education Canter Agricultural and Natural Resources, AREEO, Tabriz, Iran
| | - Ahad Bazmani
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, P.O.Box; 5163639888, Tabriz, Iran
| | - Mojtaba Varshochi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, P.O.Box; 5163639888, Tabriz, Iran
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Faramarzian Azimi Maragheh B, Fatourachi P, Mohammadi SM, Valipour B, Behtari M, Dehnad A, Nozad Charoudeh H. Streptomyces Levis ABRIINW111 Inhibits SW480 Cells Growth by Apoptosis Induction. Adv Pharm Bull 2018; 8:675-682. [PMID: 30607340 PMCID: PMC6311630 DOI: 10.15171/apb.2018.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/18/2018] [Accepted: 10/11/2018] [Indexed: 01/10/2023] Open
Abstract
Purpose: Streptomyces sp., a dominant genus in Actinomycetes, is the source of a wide variety of secondary metabolites. Microbial metabolites can be utilized as novel anticancer agents; with fewer side effects. The present article illustrated the anti-carcinogenic effect of the ether extracted organic metabolites derived from Streptomyces bacteria on SW480 colon cancer cell line. Methods: MTT assay was performed in order to investigate the cytotoxicity effect of metabolites on SW480 cells. Apoptosis and cell cycle arrests were measured by flowcytometry. Morphological changes were indicated by Propidium iodide staining andP53 gene expression was evaluated by real-time PCR. Results: Streptomyces Levis ABRIINW111 inhibited cell growth, increased Caspases 3 and reduced Ki67 expression in a concentration/time-dependent manner in SW40 cells. Metabolites increased subG1 phase (apoptosis) and also cell cycle arrest in G1, G2/M and S phase. P53 gene expression followed Sw480 cells treatment significantly. Conclusion: Streptomyces sp. metabolites have anti-carcinogenic effect on colon cancer cells. Streptomyces Levis ABRIINW111 metabolites are a candidate for Colon cancer treatment.
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Affiliation(s)
- Behnaz Faramarzian Azimi Maragheh
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Tabriz Higher Education Institute of Rab-Rashid, Department of Biological Sciences, Tabriz, Iran
| | - Parisa Fatourachi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Behnaz Valipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Meysam Behtari
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Dehnad
- Tabriz Higher Education Institute of Rab-Rashid, Department of Biological Sciences, Tabriz, Iran
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Valipour B, Mohammadi SM, Abedelahi A, Faramarzian Azimi Maragheh B, Naderali E, Dehnad A, Nozad Charoudeh H. Culture filtrate ether extracted metabolites from Streptomyces levis ABRIINW111 increased apoptosis and reduced proliferation in acute lymphoblastic leukemia. Biomed Pharmacother 2018; 108:216-223. [PMID: 30219679 DOI: 10.1016/j.biopha.2018.09.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 09/07/2018] [Accepted: 09/08/2018] [Indexed: 11/17/2022] Open
Abstract
Despite the advances in the discovery of various types of anticancer drugs for curing acute lymphoblastic leukemia (ALL), their toxicity and unfavorable side effects remained as big limitations for therapeutical applications. In this regard, natural products such as Streptomyces -derived agents have shown potential applications as anticancer drugs. The present study deals with evaluating the anti-carcinogenic activity of the ether extracted metabolites derived from Streptomyces on nalm-6 and molt-4 ALL cell lines. MTT assay was performed to evaluate the cytotoxicity effect of Streptomyces sp on nalm-6 and molt-4 cell lines. Apoptosis and proliferation were evaluated by Flow cytometry. Quantitative real-time RT-PCR (qRT-PCR) and western blot were performed to investigate the effect of these metabolites on the mRNA and protein expression levels of P53, Bax, and Bcl2. In both cell lines, extracted metabolites significantly inhibited cell growth and increased apoptosis. Although P53, Bax mRNA and protein expressions were increased, Bcl-2 expression decreased in treated cells compared with control. In addition, the G0/G1 arrest of Nalm-6 cells was induced. These findings of this work show that the ether-extracted metabolites from Streptomyces levis ABRIINW111 can be used as an anti-carcinogenic for acute lymphoblastic leukemia cells.
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Affiliation(s)
- Behnaz Valipour
- Stem cell research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Anatomical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ali Abedelahi
- Department of Anatomical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Elahe Naderali
- Stem cell research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Dehnad
- Agriculture Biotechnology Research Institute for Northwest and West of Iran, East Azarbijan, Tabriz, Iran
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Baghban Kohnehrouz B, Talischian A, Dehnad A, Nayeri S. Novel Recombinant Traceable c-Met Antagonist-Avimer Antibody Mimetic Obtained by Bacterial Expression Analysis. Avicenna J Med Biotechnol 2018; 10:9-14. [PMID: 29296261 PMCID: PMC5742656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND Avimers are originally types of artificial proteins with multiple binding sites for specific binding to certain antigens. Various radioisotopes and nanoparticles link these molecules, which are widely used in early detection in tissue imaging, treatment and study on carcinogenesis. Among these, c-Met antagonist avimer (C426 avimer), with ability to bind the c-Met receptor of tyrosine kinase (RTK) is an attractive candidate for targeted cancer therapy. In this study, a novel traceable C426 avimer gene was designed and introduced by adding the 12nt tracer binding site encoded four specific amino acid residues at the C-terminal region of C426 avimer coding sequence. METHODS The 282 bp DNA sequence encoded 94aa avimer protein was synthesized and sub-cloned into prokaryotic pET26b expression vector. The expression of the mature peptide encoding the traceable avimer molecule was carried out in Escherichia coli strain BL21 using IPTG (Isopropyl β-D-1-thiogalactopyranoside) induction process. The expression level of the 11 kDa traceable avimer was studied by SDS-PAGE, western blot and ELISA analysis. RESULTS Docking analysis of C426 avimer protein and its ligand c-Met showed that the traceability related changes happened at the best conformation and optimal energy. The SDS-PAGE, western blotting and ELISA analysis results demonstrated that the expression of the 11 kDa C426 avimer molecule was detectable without any degradation compared with the control group. CONCLUSION Concerning the consequences of this work, this new approach can be widely used in the medical field and provide an opportunity to evaluate the affinity and traceability features.
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Affiliation(s)
- Bahram Baghban Kohnehrouz
- Department of Plant Breeding & Biotechnology, University of Tabriz, Tabriz, Iran,Corresponding author: Bahram Baghban Kohnehrouz, Ph.D., Department of Plant Breeding & Biotechnology, University of Tabriz, Tabriz, Iran, Tel: +98 41 33392031, Fax: +98 41 33536003, E-mail:
| | - Afsaneh Talischian
- Department of Biological Sciences, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Alireza Dehnad
- Department of Biotechnology, East Azerbaijan Research and Education Center Agricultural and Natural Resources, AREEO, Tabriz, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Shahnoush Nayeri
- Department of Biotechnology, Shahid Beheshti University, Tehran, Iran
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Fatourachi P, Faramarziyan Azimi Maragheh B, Mohammadi SM, Valipour B, Dehnad A, Nozad Charoudeh H. Extracted metabolite from Streptomyces Levis ABRIINW111 altered the gene expression in colon cancer. Gastroenterol Hepatol Bed Bench 2018; 11:34-41. [PMID: 29564063 PMCID: PMC5849116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 12/18/2017] [Indexed: 11/17/2022]
Abstract
AIM In this study we attempt to indicate anti-carcinogenic influence of ether extracted metabolites of Streptomyces Levis sp. on gene expression in colon cancer. BACKGROUND Colon cancer is one of the most prevalent cancers worldwide. In recent decades, researchers have been seeking the treatment for cancer. Natural products are valuable compounds with fewer side effects in comparison to chemotherapy drugs. METHODS Secondary metabolites were extracted with the inoculation of bacterial sample in Mueller Hinton Broth. MTT assay was done to evaluate the cytotoxicity effect of metabolites on SW480 cells. qRT-PCR was performed to observe effects of metabolites on Bcl-2, P53, SOX2, KLF4, β-Catenin, SMAD4, K-ras, BRAF genes expression in colon cancer. RESULTS The metabolites exhibited cytotoxic effects on colon cancer in a dose/time dependent manner (P < 0.001). After 48 h treatment, fold expression of Bcl-2, SOX2, β-catenin, K-ras, BRAF genes fold of expression were decreased, whereas P53, KLF4, SMAD4 genes were increased in treated cells (P < 0.001). CONCLUSION These findings indicate that ether extracted metabolites of Streptomyces Levis ABRIINW111 have anti-carcinogenic effects on colon cancer.
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Affiliation(s)
- Parisa Fatourachi
- Stem Cell Research Center (SCRC), Tabriz University of Medical Science, Tabriz, Iran
- Payam Noor University, Tehran, Iran
| | | | | | - Behnaz Valipour
- Stem Cell Research Center (SCRC), Tabriz University of Medical Science, Tabriz, Iran
| | - Alireza Dehnad
- Higher education institute of Rab-Rashid, Tabriz, Iran
- Biotechnology Department, East Azerbaijan Agricultural Education Center, AREEO, Tabriz, Iran
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Gharaati-Far N, Tohidkia MR, Dehnad A, Omidi Y. Efficiency and cytotoxicity analysis of cationic lipids-mediated gene transfection into AGS gastric cancer cells. Artif Cells Nanomed Biotechnol 2017; 46:1001-1008. [PMID: 28728449 DOI: 10.1080/21691401.2017.1355311] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In this effort, we provided comparative study on optimization of transfection conditions for AGS human gastric cancer cell line using two commercial non-liposomal cationic lipids. Using reporter vector pEGFP-N1, transfection efficiency of Attractene™ and X-tremeGENE HP™ transfection reagents in terms of cell densities and DNA/reagent ratios was determined in AGS cells by flow cytometry and fluorescence microscopy. In addition, influence of transfection reagents on direct cytotoxicity and cell viability was respectively, measured using lactate dehydrogenase (LDH) leakage and MTT assays. Provided that the transfection rate of 29% and the mean fluorescence intensity of 437.5, the DNA/reagent ratio of 0.4/1.5 was selected as the optimal condition using Attractene™, whereas the optimum condition using X-tremeGENE HP™ was obtained by the ratio of 1/2 with a higher transfection rate of 36.9% and an MFI of 833. Very low direct cytotoxicity (<5% and 6-9% using Attractene™ and X-tremeGENE HP™, respectively) and high cell viability (74.5-95.5% versus 68-75%) showed the biodegradable attribute for both transfection reagents. Altogether, X-tremeGENE HP™ exhibited superiority over Attractene™ as a transfection reagent for AGS cells. In the present research, we have established the optimized protocols for efficient transfection of AGS cells with potential applications in gene function and expression studies as well as gene therapy.
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Affiliation(s)
- Nasrin Gharaati-Far
- a Research Center for Pharmaceutical Nanotechnology , Tabriz University of Medical Sciences , Tabriz , Iran.,b Department of Biology, Faculty of Basic Sciences , Rab-Rashid Higher Education institute , Tabriz , Iran
| | - Mohammad Reza Tohidkia
- a Research Center for Pharmaceutical Nanotechnology , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Alireza Dehnad
- b Department of Biology, Faculty of Basic Sciences , Rab-Rashid Higher Education institute , Tabriz , Iran
| | - Yadollah Omidi
- a Research Center for Pharmaceutical Nanotechnology , Tabriz University of Medical Sciences , Tabriz , Iran.,c Department of Pharmaceutics, Faculty of Pharmacy , Tabriz University of Medical Sciences , Tabriz , Iran
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Asoudeh-Fard A, Barzegari A, Dehnad A, Bastani S, Golchin A, Omidi Y. Lactobacillus plantarum induces apoptosis in oral cancer KB cells through upregulation of PTEN and downregulation of MAPK signalling pathways. ACTA ACUST UNITED AC 2017; 7:193-198. [PMID: 29159146 PMCID: PMC5684510 DOI: 10.15171/bi.2017.22] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/01/2017] [Accepted: 05/25/2017] [Indexed: 12/18/2022]
Abstract
Introduction: The oral tumor is the sixth most prevalent type of cancer worldwide and the second leading cause of cancer-related mortality. Although chemotherapy and immunotherapy are the main strategies for the treatment of oral cancer, an emergence of inevitable resistance to these treatment modalities is the major drawback that causes recurrence of the disease. Nowadays, probiotics have been suggested as adjunctive and complementary treatment modalities for improving the impacts of chemotherapy and immunotherapy agents. Probiotics, the friendly microflora in our bodies, contribute to the production of useful metabolites with positive effects on the immune system against various diseases such as cancer. Methods:Lactobacillus plantarum is one of the most important bacteria, which commensally live in the human oral system. In the current study, the impacts of L. plantarum on maintaining oral system health were investigated, and the molecular mechanisms of inhibition of oral cancer KB cells mediated by L. plantarum were evaluated using real-time polymerase chain reaction (PCR) and FACS flow cytometry analyses. Results: Our findings showed that L. plantarum is effective in the signal transduction of the oral cancer cells through upregulation and downregulation of PTEN and MAPK pathways, respectively. Conclusion: Based on the biological effects of oral candidate probiotics candidate bacterium L. plantarum on functional expression of PTEN and MAPK pathways, this microorganism seems to play a key role in controlling undesired cancer development in the oral system. Taken all, L. plantarum is proposed as a potential candidate for probiotics cancer therapy.
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Affiliation(s)
- Abbas Asoudeh-Fard
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Basic Sciences, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Abolfazl Barzegari
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Dehnad
- Department of Basic Sciences, Higher Education Institute of Rab-Rashid, Tabriz, Iran.,Biotechnology Department, East Azerbaijan Research and Education Center for Agricultural and Natural Resources, AREEO, Tabriz Iran
| | - Sepideh Bastani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Asal Golchin
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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Mahmoudi F, Baradaran B, Dehnad A, Shanehbandi D, Mohamed Khosroshahi L, Aghapour M. The immunomodulatory activity of secondary metabolites isolated fromStreptomyces calvuson human peripheral blood mononuclear cells. Br J Biomed Sci 2016; 73:97-103. [DOI: 10.1080/09674845.2016.1188476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Dehnad A, Hamedi J, Derakhshan-Khadivi F, Abusov R. Green Synthesis of Gold Nanoparticles by a Metal Resistant Arthrobacter nitroguajacolicus Isolated From Gold Mine. IEEE Trans Nanobioscience 2015; 14:393-396. [PMID: 25594974 DOI: 10.1109/tnb.2014.2377232] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Biosynthesis of gold nanoparticles would benefit from the development of clean, nontoxic and environmentally acceptable procedures concerning microorganisms from bacteria to fungi and even algae. Actinobacteria are soil bacteria which have the enormous ability as biotechnological tools. In this paper, we reported the biosynthesis of gold nanoparticles by a member of Arthrobacter genus isolated from Andaliyan gold mine in north-west of Iran. This metal resistance strain obtained from an acidophilic region ( ~ pH 5.6). The UV-vis and XRD spectra of the aqueous medium containing the strain and 1 mM HAuCl 4 for 24 h, demonstrated the formation of gold nanoparticles. TEM micrographs showed intra-extracellular production of gold nanoparticles with spherical shape and average size of 40 nm. The result of morphological and molecular tests revealed that the isolate was belonged to Atrhrobacter and has 100% similarity in 16SrRNA gene sequences to Arthrobacter nitroguajacolicus.
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Abdekhoda M, Ahmadi M, Dehnad A, Hosseini AF. Information technology acceptance in health information management. Methods Inf Med 2013; 53:14-20. [PMID: 24248003 DOI: 10.3414/me13-01-0079] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 10/28/2013] [Indexed: 11/09/2022]
Abstract
OBJECTIVE User acceptance of information technology has been a significant area of research for more than two decades in the field of information technology. This study assessed the acceptance of information technology in the context of Health Information Management (HIM) by utilizing Technology Acceptance Model (TAM) which was modified and applied to assess user acceptance of health information technology as well as viability of TAM as a research construct in the context of HIM. METHODS This was a descriptive- analytical study in which a sample of 187 personnel from a population of 363 personnel, working in medical records departments of hospitals affiliated to Tehran University of Medical Sciences, was selected. Users' perception of applying information technology was studied by a researcher-developed questionnaire. Collected data were analyzed by SPSS software (version16) using descriptive statistics and regression analysis. RESULTS The results suggest that TAM is a useful construct to assess user acceptance of information technology in the context of HIM. The findings also evidenced the perceived ease of use (PEOU) and perceived usefulness (PE) were positively associated with favorable users' attitudes towards HIM. PU was relatively more associated (r= 0.22, p = 0.05) than PEOU (r = 0.014, p = 0.05) with favorable user attitudes towards HIM. CONCLUSIONS Users' perception of usefulness and ease of use are important determinants providing the incentive for users to accept information technologies when the application of a successful HIM system is attempted. The findings of the present study suggest that user acceptance is a key element and should subsequently be the major concern of health organizations and health policy makers.
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Affiliation(s)
| | - M Ahmadi
- Maryam Ahmadi, School of Health Management and Information Sciences, Iran, University of Medical Sciences Tehran, Iran, E-mail:
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Maleki H, Dehnad A, Hanifian S, Khani S. Isolation and Molecular Identification of Streptomyces spp. with Antibacterial Activity from Northwest of Iran. Bioimpacts 2013; 3:129-34. [PMID: 24163805 DOI: 10.5681/bi.2013.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 03/07/2013] [Accepted: 03/12/2013] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Streptomyces are a group of prokaryotes that are usually found in all types of ecosystems including water and soil. This group of bacteria is noteworthy as antibiotic producers; so the isolation and characterization of new species seemed to be crucial in introduction of markedly favorable antibiotics. Therefore, in this study we aim to isolate and characterize novel strains of Streptomyces with high antibiotic production capability. METHODS To achieve this goal, from 140 isolates collected throughout northwest of Iran, 12 selected Streptomyces isolates which exhibited high antibacterial activity against pathogenic bacteria were subjected to PCR reaction for identification via 16S rDNA gene and random amplified polymorphic DNA (RAPD) pattern analysis. RESULTS Analysis of morphological and biochemical characteristics and the 16S rDNA gene sequence indicated that all 12 selected isolates belonged to the genus Streptomyces. Moreover, screening of the isolates with regard to their antimicrobial activity against indicator bacteria as well as their classification using RAPD analysis revealed that G614C1 and K36C5 isolates have considerable antimicrobial activity and high similarity to Streptomyces coelicolor and Sreptomyces albogriseolus, respectively. CONCLUSION Since many isolates in this study showed inhibitory effects against pathogenic bacteria, soil of northwest of Iran could be used as a rich source to be explored for novel Streptomyces strains with high potency of antibiotic production.
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Affiliation(s)
- Hadi Maleki
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
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Sadigh-Eteghad S, Dehnad A, Mahmodi J, Hoseyni H, Khalili I, Razmaray N. Healing potential of aStreptomycessp. secondary metabolite, SEM-1-111, on experimental full-thickness excision cutaneous wounds in Wistar rats. Clin Exp Dermatol 2013; 38:178-84. [PMID: 23397946 DOI: 10.1111/ced.12026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2012] [Indexed: 11/30/2022]
Affiliation(s)
- S. Sadigh-Eteghad
- Department of Molecular Cell Biology; North-west Branch; Razi Vaccine and Serum Research Institute; Marand; Iran
| | - A. Dehnad
- Department of Genomics; North-west Branch; Agriculture Biotechnology Research Institute; Tabriz; Iran
| | - J. Mahmodi
- Department of Pharmacology; Faculty of Veterinary Medicine, Research and Science Branch; Islamic Azad University; Tehran; Iran
| | - H. Hoseyni
- Department of Pharmacology; Faculty of Veterinary Medicine, Research and Science Branch; Islamic Azad University; Tehran; Iran
| | - I. Khalili
- Department of Molecular Cell Biology; North-west Branch; Razi Vaccine and Serum Research Institute; Marand; Iran
| | - N. Razmaray
- Department of Molecular Cell Biology; North-west Branch; Razi Vaccine and Serum Research Institute; Marand; Iran
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Khadivi Derakhshan F, Dehnad A, Salouti M. Extracellular Biosynthesis of Gold Nanoparticles by Metal Resistance Bacteria: Streptomyces griseus. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/15533174.2011.618484] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Fatemeh Khadivi Derakhshan
- a Young Researcher Club, Department of Microbiology , Maragheh Branch, Islamic Azad University , Maragheh , I. R. Iran
| | - Alireza Dehnad
- b Agricultural Biotechnology Research Institute of Iran , Northwest and West regions , Tabriz , I. R. Iran
| | - Mojtaba Salouti
- c Department of Microbiology, Faculty of Sciences , Zanjan Branch, Islamic Azad University , Zanjan , I. R. Iran
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