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Abdolvand M, Shahini Shams Abadi M, Soltani A, Banisharif F, Ghatrehsamani M. Chronic treatment with TNF-α, alone and in combination with Takinib, SB203580 and metformin induce cell death in breast cancer. Heliyon 2023; 9:e21060. [PMID: 37964831 PMCID: PMC10641119 DOI: 10.1016/j.heliyon.2023.e21060] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 11/16/2023] Open
Abstract
Breast cancer (BC) is the most common malignancy, and the largest cause of cancer death among women. The interactions between tumor cells and tumor micro environmental factors have a major impact on tumor progression. One of the critical pro-inflammatory cytokines present in breast cancer tumor microenvironment is TNF-α. The aim of this study was to evaluate the long-term effect of TNF-α (1 week) along with p38 or TAK1 inhibitors as well as metformin on induction of cellular death, cancer stem cell and expression of metastatic marker CXCR4. MCF-7 and MDA-MB-231 cells were treated with TNF-α for one week and then were treated with combination of Takinib, SB203580 or Metformin; after all treatments were done, cell proliferation, cellular death, surface expression of CXCR4, CD44 and CD24 were determined. The results showed that treatment with TNF-α alone or in combination with Takinib, SB203580 and metformin elevated induction of cellular death in both cell lines compared to the control group. TNF-α also increased CXCR4 expression in MCF-7 cells, but it reduced its expression in the MDA-MB-231 cells. Also, breast cancer stem cells (BCSCs) population decreased in MDA-MB-231 cells treated with TNF-α alone or in combination with SB203580 and metformin. Although, in MCF-7 cells only combination of TNF-α and Takinib reduced BCSCs population in a time dependent manner. Altogether, we showed that TNF-α alone or in combination with other treatments can affect the progression of breast cancer.
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Affiliation(s)
- Maryam Abdolvand
- Department of Microbiology and Immunology, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Milad Shahini Shams Abadi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Amin Soltani
- Department of Microbiology and Immunology, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Fatemeh Banisharif
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mahdi Ghatrehsamani
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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2
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Ferns GA, Fekri K, Shahini Shams Abadi M, Banitalebi Dehkordi M, Arjmand MH. A meta-analysis of the relationship between serums metrnl-like protein/subfatin and risk of type 2 diabetes mellitus and coronary artery disease. Arch Physiol Biochem 2023; 129:1084-1090. [PMID: 33950769 DOI: 10.1080/13813455.2021.1899239] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/13/2021] [Accepted: 03/01/2021] [Indexed: 12/29/2022]
Abstract
There have been inconsistent reports that Metrnl-like protein, a new adipokine, is associated with the risk of metabolic syndrome (MetS), type 2 diabetes mellitus (T2DM) and coronary artery disease (CAD). A systematic search in PubMed, Scopus, Web of Science, and Google scholar databases were conducted up until 24 November 2020. Ten eligible studies were included in this meta-analysis. The overall results showed that there was no significant association between serum Metrnl levels and risk of T2DM and CAD in patients compared with healthy control (SMD= -0.717 and 95%CI -1.572_0.139, p = .1). However, in subgroup analysis, there was a significant association between a BMI ≥ 25 and the serum level of Metrnl-like protein (SMD= -0.688 and 95%CI -1.348_-0.028 p = .041), indicating a potential inverse connection between serum Metrnl and the adiposity. Further well-designed studies are needed to explain the more subtle roles of Metrnl in metabolic disorders like T2DM and CAD.
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Affiliation(s)
- Gordon A Ferns
- Brighton and Sussex Medical School, Division of Medical Education, Brighton, UK
| | - Kiavash Fekri
- Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Milad Shahini Shams Abadi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | | | - Mohammad-Hassan Arjmand
- Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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3
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Delgarm Shams-Abadi A, Mohammadian-Hafshejani A, Paterson DL, Arash R, Asadi Farsani E, Taji A, Heidari H, Shahini Shams Abadi M. The prevalence of colistin resistance in clinical Stenotrophomonas maltophilia isolates worldwide: a systematic review and meta-analysis. BMC Microbiol 2023; 23:200. [PMID: 37507660 PMCID: PMC10386657 DOI: 10.1186/s12866-023-02950-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
While trimethoprim-sulfamethoxazole (TMP-SMX) is the first-line therapy of Stenotrophomonas maltophilia infections, colistin is one of the therapeutic options in cases of allergy or resistance to TMP-SMX. However, understanding the global status of resistance to colistin amongst S. maltophilia isolates could be helpful for appropriate antibiotic prescription. This study aimed to conduct a systematic review and meta-analysis to examine the prevalence of colistin resistance in clinical S. maltophilia isolates worldwide. According to eligibility criteria, a total of 61 studies were included in the analysis. The pooled prevalence for colistin resistance was 42% (95% CI: 35-49%), ranging from 0.1 to 97%. Subgroups analysis indicated that, the pooled prevalence of colistin resistance was 44% (95% CI: 29-60%) in 15 studies during 2000-2010, and it was estimated to be 41% (95% CI: 33-50%) in 46 articles from 2011 to 2021. It was 46% (95% CI: 35-58%) in the studies that used broth microdilution method, and 39% (95% CI: 30-49%) in the studies with other used methods. The resistance rate in Asian countries was 45% (95% CI: 31-60%), in European countries was 45% (95% CI: 34-56%) and in the countries of North and South America was 33% (95% CI: 20-46%). Our review showed notable resistance to colistin in clinical S. maltophilia isolates. Given the estimated resistance rates, alternative antibiotics could be preferred to treat serious infections due to S. maltophilia.
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Affiliation(s)
| | | | - David L Paterson
- UQ Center for Clinical Research, University of Queensland, Brisbane, Australia
| | - Rezvan Arash
- Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Elham Asadi Farsani
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Asieh Taji
- International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hamid Heidari
- Department of Microbiology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Milad Shahini Shams Abadi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Soltani A, Shahini Shams Abadi M, Raeisi M, Kouhihabibidehkordi M, Eshaghi F, Mohreh O, Rafieian-Kopaei M. Apoptosis-inducing Plant-based phenolic compounds are effective on leukemia cell lines. Curr Pharm Des 2023; 29:1092-1104. [PMID: 37070446 DOI: 10.2174/1381612829666230417110032] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/29/2022] [Accepted: 01/24/2023] [Indexed: 04/19/2023]
Abstract
Numerous natural compounds have been identified that are able to induce apoptosis in cancer cells. These compounds have various chemical properties and are found in medicinal plants, vegetables, and fruits that are commonly consumed by humans. Phenols represent important compounds, which have been demonstrated to induce apoptosis in cancer cells, and some of the involved mechanisms have also been determined. The most important and abundant phenolic compounds are tannins, caffeic acid, capsaicin, gallic acid, resveratrol, and curcumin. Induction of apoptosis with the least or no toxicity to natural tissues is one of the useful effects of many plant-based bioactive compounds. Phenols, with anticancer potency at different degrees, serve to induce apoptosis through different pathways, including both extrinsic (Fas) and intrinsic (calcium release, ROS increase, DNA degradation, and mitochondrial membrane impairment). In this review, we report these compounds and their apoptosis-inducing mechanisms. Apoptosis or programmed cell death is a precise and systematic mechanism that is aimed at removing damaged or abnormal cells and is very useful to control, treat, and prevent cancer. Apoptotic cells are characterized by specific morphological features and molecular expression. In addition to physiological stimuli, there are many external factors that can be useful for inducing apoptosis. Also, these compounds can affect the regulatory proteins of the apoptotic pathways, such as the apoptotic proteins (Bid and BAX) and antiapoptotic proteins (Bcl-2). Taking these compounds and their molecular mechanisms into account can help use them in combination with chemical drugs and develop new drugs.
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Affiliation(s)
- Amin Soltani
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Milad Shahini Shams Abadi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad Raeisi
- Immunology Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahnoush Kouhihabibidehkordi
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Farzane Eshaghi
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Omid Mohreh
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mahmoud Rafieian-Kopaei
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Rahimian G, Shahini Shams Abadi M, Mirzaei Y, Hussein Mer A, Ahmadi R, Azadegan-Dehkordi F. Relationship between mucosal TNF-α expression and Th1, Th17, Th22 and Treg responses in Helicobacter pylori infection. AMB Express 2022; 12:113. [PMID: 36057049 PMCID: PMC9440976 DOI: 10.1186/s13568-022-01456-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 01/10/2022] [Accepted: 08/25/2022] [Indexed: 12/03/2022] Open
Abstract
Helicobacter pylori (H. pylori)-induced gastric inflammation in the gastric mucosa and significantly increases the risk of developing gastritis and peptic ulcer disease (PUD). The objective of this research is to determine the role of tumor necrosis factor-α (TNF-α) expression in the gastric mucosa of patients with H. pylori-associated gastritis and PUD compared to uninfected patients, and we determined the relation between TNF-α expression and Th1/Th17/Th22, and Treg cells. Fifty-five patients with H. pylori-associated gastritis, 47 patients with H. pylori-associated PUD, and 48 uninfected patients were in this research. Antrum biopsy was used to detect H. pylori, virulence factors and histopathological assessments. Expression of TNF-α in the infected group was significantly higher than the uninfected group. Also, cagA/oipA-positive infected patients induce significantly more TNF-α expression than do cagA/oipA-negative infected patients. Expression of TNF-α was significantly increased in the PUD group than the gastritis group. Notably, TNF-α expression had a significant positive correlation with the frequency of Th1/Th17/Th22 lymphocytes in the PUD group. These findings indicate the importance of increasing TNF-α with Th1, Th17, Th22 responses increase as an important risk factor for PUD in context of H. pylori infection. Expression of TNF-α was significantly increased in the PUD group than the gastritis group. Notably, TNF-α expression had a significant positive correlation with the frequency of Th1/Th17/Th22 lymphocytes in the PUD group. These findings indicate the importance of increasing TNF-α with Th1, Th17, Th22 responses increase as an important risk factor for PUD in context of H. pylori infection.
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Affiliation(s)
- Ghorbanali Rahimian
- Department of Internal Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Milad Shahini Shams Abadi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Yousef Mirzaei
- Department of Medical Biochemical Analysis, Cihan University-Erbil, Kurdistan Region, Iraq
| | - Ali Hussein Mer
- Scientific Research Center, Soran University, Soran, Kurdistan Region, Iraq
| | - Reza Ahmadi
- Clinical Biochemistry Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Fatemeh Azadegan-Dehkordi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Rafiei E, Shahini Shams Abadi M, Zamanzad B, Gholipour A. The frequency of efflux pump genes expression in Acinetobacter baumannii isolates from pulmonary secretions. AMB Express 2022; 12:103. [PMID: 35925415 PMCID: PMC9352836 DOI: 10.1186/s13568-022-01444-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 07/28/2022] [Indexed: 11/24/2022] Open
Abstract
Acinetobacter baumannii is an important opportunistic pathogen, and the cause of nosocomial infections worldwide in recent decades. Efflux pumps are considered as the important causes of multidrug resistance of A. baumannii. The aim of this study was to determine the frequency of efflux pump genes, and evaluate the antibiotic effect of Tigecycline on the expression of adeB gene in isolates of multidrug-resistant. A. baumannii. 70 isolates of A. baumannii were collected and confirmed by biochemical and molecular tests. Antibiotic resistance (Ciprofloxacin, Trimethoprim-sulfamethoxazole, and Tigecycline) was performed based on the minimum inhibitory concentration (MIC) method. Then, the effect of Carbonyl cyanide m-chlorophenyl hydrazone inhibitor (CCCP) on isolates was investigated and the frequency of adeB, adeG, adeJ and abeM genes were examined by PCR for isolates with reduced in MIC titer. Also, the antibiotic effect of Tigecycline on adeB gene expression in A. baumannii isolates was analyzed by Real-Time PCR. The antibiotic resistance for Ciprofloxacin, Trimethoprim-sulfamethoxazole, and Tigecycline was 97.1%, 95.8% and 37.2%, respectively. Following CCCP inhibitor use, the MIC titer had a decrease in MIC titer containing CCCP inhibitor was 64.3% for Ciprofloxacin, 51.5% for Trimethoprim-sulfamethoxazole and 50% for Tigecycline. The frequencies of genes associated with adeB, adeG, adeJ and abeM efflux pump were 100%, 92.8%, 86% and 98.5%, respectively. Real-Time PCR results showed a correlation between the antibiotic effects of Tigecycline on adeB gene expression. The antibiotic resistance of the isolates was relatively high. The isolates were resistant to Ciprofloxacin and Trimethoprim-sulfamethoxazole antibiotics, while more sensitive to Tigecycline. Also, efflux pump genes, which are the antibiotic resistance factors of A. baumannii, are frequently high in the isolates but it seems that isolates use other effluxe pumps than RND family to exit tigecycline. The frequencies of genes associated with adeB, adeG, adeJ and abeM efflux pump were 100%, 92.8%, 86% and 98.5%, respectively. Real-Time PCR results showed a correlation between the antibiotic effects of Tigecycline on adeB gene expression. The antibiotic resistance of the isolates was relatively high. Also, efflux pump genes, which are the antibiotic resistance factors of A. baumannii, are frequently high in the isolates but it seems that isolates use other effluxe pumps than RND family to exit tigecycline.
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Affiliation(s)
- Ebrahim Rafiei
- Cellular and Molecular Research Center, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran.,Department of Microbiology and Immunology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Milad Shahini Shams Abadi
- Cellular and Molecular Research Center, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran.,Department of Microbiology and Immunology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Behnam Zamanzad
- Cellular and Molecular Research Center, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Abolfazl Gholipour
- Cellular and Molecular Research Center, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran. .,Department of Microbiology and Immunology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Abadi MSS, Taheri E, Raesi A, Arjmand MH, Kheirii S, Shahinfard N, Habibi Z. Procalcitonin as a prognostic factor in patients with COVID-19 in southwestern Iran. Infect Disord Drug Targets 2022; 22:e070122200097. [PMID: 34994319 DOI: 10.2174/1871526522666220107141109] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/21/2021] [Accepted: 10/20/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND There is increasing evidence supporting a central role of the viral-induced hyper-inflammatory immune response in the pathogenesis of COVID-19. Serum procalcitonin (PCT) is an emerging prognostic marker in coronavirus disease 2019 (COVID-19). The aim of this study was to investigate the relationship between serum procalcitonin and clinical severity and outcomes in patients with coronavirus disease 2019 (COVID-19). MATERIALS AND METHODS Hematological and biochemical parameters were evaluated in patients with COVID-19 infection from February to April 2020 at Hajar Hospital in the Shahrekord University of Medical Science, Shahrekord, Iran. RESULTS The results showed that total lymphocyte counts, albumin, calcium, and creatinine levels were significant different between the two moderate and severe groups, and the mean of procalcitonin level in COVID-19 patients with severe disease was higher (0.36 ng/mL) compared with the patients with moderate disease, and its level was found to be >5 ng/mL in 14.2% of5 ng/mL in 14.2% of patients in the former group. CONCLUSIONS PCT may be a marker of disease severity in COVID-19 and may contribute to determine the severity of patients infected with SARS-CoV-2. Moreover, serial PCT measurements may be beneficial in predicting the prognosis.
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Affiliation(s)
- Milad Shahini Shams Abadi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
- Clinical Research Development Unit, Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Elham Taheri
- Molecular Pathology and Cytogenetic Ward, Pathology Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Raesi
- Department of Internal Medicine, Clinical Research Development Unit, Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad-Hassan Arjmand
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
- Clinical Research Development Unit, Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Soleiman Kheirii
- Modeling in Health Research Center and School of Public Health, Department of Epidemiology and Biostatistics, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Najmeh Shahinfard
- Clinical Research Development Unit, Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Zahra Habibi
- Clinical Research Development Unit, Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Abadi MSS, Arjmand MH, Kakian F, Mohammadian-Hafshejani A, Banitalebi-Dehkordi M, Heidari H. Bacterial Ocular Infections in Iran: A Systematic Review and Meta-Analysis. Oman Med J 2022; 38:e476. [PMID: 37132006 PMCID: PMC10148946 DOI: 10.5001/omj.2023.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 03/02/2022] [Indexed: 11/03/2022] Open
Abstract
Objectives Eye infections can be caused by several microorganisms and the most common causative bacterial agents are staphylococci, streptococci, and Pseudomonas aeruginosa. This study aimed to estimate the prevalence of Staphylococcus aureus, Staphylococcus epidermidis, viridans group streptococci, and P. aeruginosa as the cause of ocular infections in Iran. Methods We conducted a systematic search on the studies published by Iranian authors from January 2000 to December 2020 in Web of Science, PubMed, Scopus, and Embase. Eligible studies were selected according to the defined inclusion/exclusion criteria. Statistical heterogeneity between and within groups was estimated by the Q-statistic and I2 index. The funnel plots, Duval and Tweedie trim, and fill methods were obtained to evaluate the evidence of publication bias. Results Twenty-seven studies were included in this review. According to the meta-analysis results, the prevalence of S.epidermidis was 19.1% (95% CI: 12.5-28.1). It was estimated 6.9% (95% CI: 4.4-10.6), 6.7% (95% CI: 4.6-9.6), and 3.3% (95% CI: 1.8-5.8) for P.aeruginosa, S. aureus, and viridans streptococci, respectively. Conclusions S. epidermidis is the prevalent bacterial agents responsible for eye-associated infections in Iran.
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Ferns GA, Shahini Shams Abadi M, Raeisi A, Arjmand MH. The Potential Role of Changes in the Glucose and Lipid Metabolic Pathways in Gastrointestinal Cancer Progression: Strategy in Cancer Therapy. Gastrointest Tumors 2021; 8:169-176. [PMID: 34722470 DOI: 10.1159/000517771] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/10/2021] [Indexed: 11/19/2022] Open
Abstract
Background Changes in cell metabolism are a well-known feature of some cancers, and this may be involved in the etiology of tumor formation and progression, as well as tumor heterogeneity. These changes may affect fatty acid metabolism and glycolysis and are required to provide the increase in energy necessary for the high rate of proliferation of cancer cells. Gastrointestinal cancers remain a difficult-to-treat cancer, particularly as they are usually diagnosed at a late stage of disease and are associated with poor outcomes. Summary Recently, the changes in the metabolic pathways, including the expression of the rate-limiting enzymes involved, have been considered to be a potential target for therapy for gastrointestinal tumors. Key Message A combination of routine chemotherapy drugs with metabolic inhibitors may improve the effectiveness of treatment.
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Affiliation(s)
- Gordon A Ferns
- Division of Medical Education, Brighton & Sussex Medical School, Brighton, United Kingdom
| | - Milad Shahini Shams Abadi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.,Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Ahmad Raeisi
- Clinical Research Development Unit, Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mohammad-Hassan Arjmand
- Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.,Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Ferns GA, Shabanian S, Shams Abadi MS, Farhat A, Arjmand MH. Prognostic and Clinicopathologic Significance of Discoidin Domain Receptors in Different Human Malignancies: A Meta-Analysis. Gastrointest Tumors 2021; 8:177-186. [PMID: 34722471 DOI: 10.1159/000517503] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/29/2021] [Indexed: 11/19/2022] Open
Abstract
Background Discoidin domain receptors (DDRs) belong to the receptor tyrosine kinases family and are activated by different types of collagens, which play roles in various physiological processes. An abnormal expression of DDRs is reported in different types of cancers. Despite many reports about the association and roles of high DDR expression levels in cancers, the prognostic values of DDRs are still unclear. This meta-analysis was performed to evaluate the prognostic effect of DDRs in different tissue cancers. Method A literature search was performed in several related databases to find eligible English articles. Based on our research, 20 appropriate studies with 2,602 patients were selected till October 5, 2020. The pooled hazard ratio (HR) with a corresponding 95% confidence interval (CI) was computed to evaluate the strength of correlation between DDRs and survival of cancer patients. Result Pooling results showed that a high DDR expression was significantly associated with poorer overall survival (OS) (HR = 1.304, 95% CI 1.007-1.69, p = 0.04). Subgroup analysis based on cancer type revealed a significant link between a high DDR expression level and poor OS both in gastrointestinal (pooled HR = 1.78, 95% CI 1.214-2.624, p = 0.003) and urological cancers (pooled HR = 1.42, 95% CI 1.062-1.82, p = 0.018). Conclusion Our meta-analysis results suggest that high DDRs expression has the potential to be used as a biomarker of poor prognosis in cancers.
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Affiliation(s)
- Gordon A Ferns
- Division of Medical Education, Brighton & Sussex Medical School, Brighton, United Kingdom
| | - Sheida Shabanian
- Department of Obstetrics and Gynecology, Faculty of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Milad Shahini Shams Abadi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Ahmadshah Farhat
- Neonatal Research Center, Emam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad-Hassan Arjmand
- Cancer Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.,Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Shahini Shams Abadi M, Taji A, Salehi F, Kazemian H, Heidari H. High-level Gentamicin Resistance among Clinical Isolates of Enterococci in Iran: a Systematic Review and Meta-analysis. Folia Med (Plovdiv) 2021; 63:15-23. [PMID: 33650391 DOI: 10.3897/folmed.63.e53506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/22/2020] [Accepted: 06/01/2020] [Indexed: 11/12/2022] Open
Abstract
Enterococci have been considered as one of the most common causes of nosocomial infections. The spread of antibiotic resistance has posed a serious challenge to treating the enterococcal infections. High-level aminoglycosides resistance leads to failure in the synergistic combination therapy. This study aimed to estimate the prevalence of high-level gentamicin resistance (HLGR) among clinical isolates of enterococci in Iran.Systematic literature search was conducted in the Web of Science, PubMed, Scopus and Google Scholar electronic databases from ar-ticles which were published from April 2000 to September 2018. Literature search yielded 918 studies. Eligible studies were selected ac-cording to the defined inclusion and exclusion criteria. Statistical heterogeneity was estimated by Q statistic and the I2 index. The Begg's rank correlation test and Egger's weighted regression tests were used to evaluate possible publication bias.Nineteen studies were included in this review. According to the meta-analysis results, the prevalence of HLGR among Enterococcus spp. was 49.4% (95% CI: 42.2%-56.6%). It was estimated 44.3% (95% CI: 38.1%-50.8%) and 66.3% (95% CI: 51.4%-78.6%) for E. faecalis and E. faecium, respectively.Since notable rate of HLGR in enterococci was seen in this analysis, improving the implementation of all aspects of the infection control programmes is required. Accurate and regular monitoring of infection control procedures are necessary for reducing the dissemination of such infections.
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Affiliation(s)
| | - Asieh Taji
- Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Salehi
- Shahrekord University of Medical Sciences, Shahrekord, Iran
| | | | - Hamid Heidari
- Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Ferns GA, Shahini Shams Abadi M, Arjmand MH. The potential association between metabolic syndrome and risk of post-surgical adhesion. Arch Physiol Biochem 2020; 129:649-654. [PMID: 33290664 DOI: 10.1080/13813455.2020.1856882] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
Metabolic syndrome (MetS) is defined by the clustering of several associated with a group of disorders that include: obesity, dyslipidemia, hypertension, and insulin resistance. The incidence of MetS is increasing globally around the world. Indeed the rates of different types of surgery in older or younger patients with Mets are increasing and they are exposed to a wide range of operations including abdominal, pelvic, urologic, or any invasive procedures. Post-surgical adhesion is a common problem and is a challenge for the surgeon. Despite many studies on its pathogenesis, there remain many un-answered questions about it, for example why certain tissues and patients are more at higher risk of post-surgical adhesions. Many studies have suggested that MetS is associated with up-regulating molecular mechanisms leading to chronic inflammation and hypercoagulability. In this review, we discuss some of the molecular mechanisms by MetS may enhance post-surgical adhesion, and particularly regarding those involved in coagulation and inflammation.
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Affiliation(s)
- Gordon A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Brighton, UK
| | - Milad Shahini Shams Abadi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
- Cancer Research Center, Shahrekord university of Medical Sciences, Shahrekord, Iran
| | - Mohammad-Hassan Arjmand
- Cancer Research Center, Shahrekord university of Medical Sciences, Shahrekord, Iran
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Khaledi M, Shahini Shams Abadi M, Validi M, Zamanzad B, Vafapour R, Gholipour A. Phenotypic and genotypic detection of metallo-β-lactamases in A. baumanii isolates obtained from clinical samples in Shahrekord, southwest Iran. BMC Res Notes 2019; 12:597. [PMID: 31533853 PMCID: PMC6751628 DOI: 10.1186/s13104-019-4636-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/11/2019] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE Acinetobacter baumanii is a pathogenic bacterium that is the cause of many nosocomial infections. This study aimed to determine metallo-β-lactamases (MBL) produced by the A. baumanii isolates obtained from clinical samples in Shahrekord, southwest Iran. RESULTS A total of 100 A. baumanii were isolated from 250 clinical samples between June 2013 and June 2014. Then, the isolates were identified by biochemical tests, and MBL screening was conducted by the phenotypic tests modified Hodge, EDTA-disk synergy (EDS), combined disk (CD) and AmpC disc after antibiotic sensitivity test. Using PCR technique the bla genes were detected. Eighty-five (85%) isolates were resistant to meropenem and imipenem. Phenotypic tests showed that out of the 100 isolates, 46, 59, 50, 65 and 65 isolates were positive: AmpC disk, CD, EDS, Modified Hodge and E-test MBL respectively. Gene detection by PCR showed that 23 isolates carried the VIM-1 gene and only three isolates carried the IMP-1 gene. The prevalence of metallo-β-lactamases isolates containing A. baumanii is increasing. Furthermore, the coexistence of various carbapenemases is dominantly act as a major problem. Continuous monitoring of the infections related to these bacteria should be considered to plan an alternative and new therapeutic strategies.
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Affiliation(s)
- Mansoor Khaledi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Islamic Republic of Iran
| | - Milad Shahini Shams Abadi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Islamic Republic of Iran
| | - Majid Validi
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Islamic Republic of Iran
| | - Behnam Zamanzad
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Islamic Republic of Iran
| | - Rezvan Vafapour
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Islamic Republic of Iran
| | - Abolfazl Gholipour
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Islamic Republic of Iran
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Kakian F, Shahini Shams Abadi M, Gholipour A, Fadaie M, Zamanzad B, Khairi S, Parchami S, Damavandi MS. Evaluating the prevalence of virulence genes of Escherichia coli in patients affected by urinary tract infection. Gene Reports 2019. [DOI: 10.1016/j.genrep.2019.100433] [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: 10/26/2022]
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Javdan S, Narimani T, Shahini Shams Abadi M, Gholipour A. Agr typing of Staphylococcus aureus species isolated from clinical samples in training hospitals of Isfahan and Shahrekord. BMC Res Notes 2019; 12:363. [PMID: 31248448 PMCID: PMC6598336 DOI: 10.1186/s13104-019-4396-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 05/19/2019] [Accepted: 06/18/2019] [Indexed: 12/20/2022] Open
Abstract
Objective As an opportunistic pathogen, Staphylococcus aureus is associated with serious nosocomial infections and growing antimicrobial resistance against beta-lactams among S. aureus strains has become a global challenge. The current study was designed to investigate the presence of agr genes among S. aureus strains recovered from clinical samples in university hospitals of Isfahan and Shahrekord. Results A total of 150 S. aureus isolates were screened by Disk diffusion method (DDM) and conventional PCR. The minimum (17.3%) and maximum (46%) antibiotic resistance rates were found in vancomycin and cefoxitin, respectively. The majority of our isolates were classified as agr type I followed by type II, type IV, and type III. The statistical analysis showed a significant correlation between agr type I and antibiotic resistance against cefoxitin and erythromycin (p = 0.04 and p = 0.03, respectively). Based on our findings, the agr typing could be considered an effective approach for molecular tracking of S. aureus infections.
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Affiliation(s)
- Saeid Javdan
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Tahmine Narimani
- Department of Microbiology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Milad Shahini Shams Abadi
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abolfazl Gholipour
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran. .,Department of Microbiology and Immunology, Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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Soltani E, Farrokhi E, Zamanzad B, Shahini Shams Abadi M, Deris F, Soltani A, Gholipour A. Prevalence and distribution of adhesins and the expression of fibronectin-binding protein (FnbA and FnbB) among Staphylococcus aureus isolates from Shahrekord Hospitals. BMC Res Notes 2019; 12:49. [PMID: 30670071 PMCID: PMC6341569 DOI: 10.1186/s13104-019-4055-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 12/11/2018] [Accepted: 01/08/2019] [Indexed: 11/18/2022] Open
Abstract
Objective One of the most important causes of nosocomial infections is Staphylococcus aureus. The aim of this study was to determine the frequency of these genes and the rate of expression of these genes during nasal colonization among the personnel of Kashani and Hajar hospitals. Results In this Analytical-descriptive study, 240 nasal swab specimens were collected from personnel of different departments of Kashani and Hajar hospitals in Shahr-e-kord. Nasal specimens were cultured and 110 Staphylococcus strains were isolated. Based on the results, 110 carriers of Staphylococcus aureus were identified. The frequency of clfA, clfB, fnbA and fnbB genes were 36.3%, 86.3%, 7.2% and 43.6% respectively. It was also observed that the fnbA gene showed no expression, but of 95 clfB-positive samples, 73 isolates (76.8%) were expressed clfB gene. This study showed that the abundance of these genes varies in nasal colonization. It was also observed that clfB gene with a high frequency and high expression rate has an important role in nose colonization. These results not only provide insight into the factors involved in S. aureus colonization but also provide potential therapeutic targets.
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Affiliation(s)
- Emad Soltani
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Effat Farrokhi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Behnam Zamanzad
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Milad Shahini Shams Abadi
- Department of Bacteriology & Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Deris
- Department of Epidemiology and Biostatistics, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Amin Soltani
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Abolfazl Gholipour
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran. .,Department of Microbiology and Immunology, Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, IR, Iran.
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Salehi F, Ahmadi A, Ahmadi Soodejani SS, Shahini Shams Abadi M. THE CHANGING TREND OF MORTALITY CAUSED BY GASTROINTESTINAL CANCERS IN IRAN DURING THE YEARS 2006-2010. Arq Gastroenterol 2018; 55:237-241. [PMID: 30540084 DOI: 10.1590/s0004-2803.201800000-60] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 03/29/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cancers are one of the most important causes of death in the world. According to their high incidence and mortality, gastrointestinal cancers have particular importance among other cancers. OBJECTIVE Therefore, this study was conducted to investigate the mortality change trends of gastrointestinal cancers in Iran. METHODS This study was performed by analyzing the reported mortality data in 29 provinces of Iran in 2006-2010. Mortality trend of gastrointestinal cancers was drawn for both sexes in the study years and disaggregated by age groups and their frequency distribution. The WinPepi software was used for analysis. RESULTS In the years 2006-2010, the mortality rate of, gastric, colorectal, liver and pancreatic cancers, has significantly increased. Totally, gastrointestinal mortality is higher in men than women. Also, the results showed that by increasing age, death from these cancers also increased. CONCLUSION The most important causes of death from gastrointestinal cancers were gastric, liver and colorectal cancers in Iran and because of their increasing trend in the country, performing preventive interventions for the cancers' risk factors is necessary.
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Affiliation(s)
- Fatemeh Salehi
- Shahrekord University of Medical Sciences, Modeling in Health Research Center, Shahrekord, Iran
| | - Ali Ahmadi
- Shahrekord University of Medical Sciences, Modeling in Health Research Center, Shahrekord, Iran.,Shahrekord University of Medical Sciences, Department of Epidemiology and Biostatistics, Shahrekord, Iran
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Shahini Shams Abadi M, Gholipour A, Hadi N. The highly conserved domain of RND multidrug efflux pumps in pathogenic Gram-negative bacteria. Cell Mol Biol (Noisy-le-grand) 2018; 64:79-83. [PMID: 30403600] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 06/08/2023]
Abstract
RND (Resistance-Nodulation-Division) family transporters have a vital role in both intrinsic and acquired multi-drug resistance in Gram-negative bacteria. It is important to find a conserved domain in the RND family between different pathogenic bacteria for diagnostic and therapeutic purpose. Total sequences of three-component system RND efflux pumps were retrieved from NCBI nucleotide and protein database and were subjected to conservation and variation analysis using the multiple sequence alignment feature of the CLC workbench. The phylogenetic tree for main transporters was drawn and the three-dimensional structure was also evaluated. From the sequence conservation analysis, highly conserved residues with 282 base pair (94 amino acid) long were identified. The location of the highly conserved domain is positioned in the domain 1 crystallographic structure of AcrB Escherichia coli and MexB Pseudomonas aeruginosa. The main transporter component phylogenetic tree shows the clusters of different genotypes and their evolutionary association. Each of three components of RND proteins is crucial for drug efflux, and the absence of even one component makes the entire complex totally nonfunctional. Therefore, this highly conserved region can be used to disable the RND multidrug efflux pumps. In addition, this highly conserved can also be used for diagnostic aspects.
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Affiliation(s)
- Milad Shahini Shams Abadi
- Department of Bacteriology & Virology, School of medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abolfazl Gholipour
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Nahal Hadi
- Department of Bacteriology & Virology, School of medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Shahini Shams Abadi M, Gholipour A, Hadi N. The highly conserved domain of RND multidrug efflux pumps in pathogenic Gram-negative bacteria. Cell Mol Biol (Noisy-le-grand) 2018. [DOI: 10.14715/cmb/2018.64.13.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Heidari H, Halaji M, Taji A, Kazemian H, Shahini Shams Abadi M, Taheripour Sisakht M, Sedigh Ebrahim-Saraie H. Molecular analysis of drug-resistant Acinetobacter baumannii isolates by ERIC-PCR. Meta Gene 2018. [DOI: 10.1016/j.mgene.2018.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Shahini Shams Abadi M, Nikokar I, Hoseini Alfatemi SM, Malekzadegan Y, Azizi A, Sedigh Ebrahim-Saraie H. Epidemiology of Panton-Valentine Leukocidin harbouring Staphylococcus aureus in cutaneous infections from Iran: a systematic review and meta-analysis. Infez Med 2017; 25:217-223. [PMID: 28956538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Panton-Valentine Leukocidin (PVL) producing Staphylococcus aureus has been associated with severity of skin infections and pathology that suggest a major role in pathogenicity. The present study aimed to determine the overall prevalence of PVL harbouring S. aureus isolates from cutaneous infections in Iran. A systematic search was performed by using Medline electronic databases (PubMed) from the papers published by Iranian authors to the end of March 2017. Ten publications which met our inclusion criteria were then selected for data extraction and analysis by Comprehensive Meta-Analysis Software. The pooled prevalence of PVL in cutaneous infections was estimated at 27.9% (95% CI: 17.9-40.6). The range of PVL positivity among S. aureus isolates obtained from cutaneous infections was from 7.4% to 55.6%. In summary, despite the emergence of multiple-drug resistant strains, it seems that the overall prevalence of PVL carrying S. aureus in Iran remains steady regardless of methicillin resistance. However, further research is required to elucidate the interplay between the risk of invasive disease and PVL, especially in Iran.
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Affiliation(s)
- Milad Shahini Shams Abadi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Iraj Nikokar
- Medical Biotechnology Research Center, Laboratory of Microbiology and Immunology of Infectious Diseases, Paramedicine Faculty, Guilan University of Medical Sciences, Rasht, Iran
| | - Seyedeh Mahsan Hoseini Alfatemi
- Pediatric Infections Research Center, Research institute for Children Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yalda Malekzadegan
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abdolah Azizi
- Department of Epidemiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hadi Sedigh Ebrahim-Saraie
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Shahini Shams Abadi M, Siadat SD, Vaziri F, Davari M, Fateh A, Pourazar S, Abdolrahimi F, Ghazanfari M. Distribution and Diversity of hmw1A Among Invasive Nontypeable Haemophilus influenzae Isolates in Iran. Avicenna J Med Biotechnol 2016; 8:99-102. [PMID: 27141269 PMCID: PMC4842248] [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: 10/24/2022] Open
Abstract
BACKGROUND The pathogenesis of nontypeable Haemophilus influenzae (NTHi) begins with adhesion to the rhinopharyngeal mucosa. Almost 38-80% of NTHi clinical isolates produce proteins that belong to the High Molecular Weight (HMW) family of adhesins, which are believed to facilitate colonization. METHODS In the present study, the prevalence of hmwA, which encodes the HMW adhesin, was determined for a collection of 32 NTHi isolates. Restriction Fragment Length Polymorphism (RFLP) was performed to advance our understanding of hmwA binding sequence diversity. RESULTS The results demonstrated that hmwA was detected in 61% of NTHi isolates. According to RFLP, isolates were divided into three groups. CONCLUSION Based on these observations, it is hypothesized that some strains of nontypeable Haemophilus influenzae infect some specific areas more than other parts.
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Affiliation(s)
| | - Seyed Davar Siadat
- Corresponding author: Seyed Davar Siadat, Ph.D., Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran, Tel: +98 21 66953311, E-mail:
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