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Noshadian M, Ragerdi Kashani I, Asadi-Golshan R, Zarini D, Ghafari N, Zahedi E, Pasbakhsh P. Benefits of bone marrow mesenchymal stem cells compared to their conditioned medium in valproic acid-induced autism in rats. Mol Biol Rep 2024; 51:353. [PMID: 38401030 DOI: 10.1007/s11033-024-09292-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/29/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by repetitive behaviors, a limited range of activities, and deficiencies in social communications. Bone marrow mesenchymal stem cells (BM-MSCs), which secrete factors that stimulate surrounding microenvironment, and BM-MSCs conditioned medium (BM-MSCs-CM), which contains cell-secreted products, have been speculated to hold potential as a therapy for ASD. This study aimed to compare the therapeutic effects of BM-MSCs and BM-MSCs-CM on behavioral and microglial changes in an animal model of autism induced by valproic acid (VPA). METHODS AND RESULTS Pregnant Wistar rats were administered by VPA at a dose of 600 mg/kg at 12.5 days post-conception. After birth, male pups were included in the study. At 6 weeks of age, one group of rats received intranasal administration of BM-MSCs, while another group received BM-MSCs-CM. The rats were allowed to recover for 2 weeks. Behavioral tests, quantitative real-time polymerase chain reaction (qRT-PCR), and immunohistochemistry were performed. Both BM-MSCs and BM-MSCs-CM administration significantly improved some behavioral deficits. Furthermore, these treatments notably reduced Iba-1 marker associated with microgliosis. Additionally, there was a significant reduction in the expression of pro-inflammatory cytokines IL-1β and IL-6, and an increase in the levels of the anti-inflammatory cytokine IL-10 in rats administered by BM-MSCs and BM-MSCs-CM. CONCLUSIONS Post-developmental administration of BM-MSCs and BM-MSCs-CM can ameliorate prenatal neurodevelopmental deficits, restore cognitive and social behaviors, and modulate microglial and inflammatory markers. Results indicated that the improvement rate was higher in the BM-MSCs group than BM-MSCs-CM group.
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Affiliation(s)
- Mehrazin Noshadian
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, 1461884513, Iran
| | - Iraj Ragerdi Kashani
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, 1461884513, Iran
| | - Reza Asadi-Golshan
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, 1461884513, Iran
| | - Davood Zarini
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, 1461884513, Iran
| | - Neda Ghafari
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, 1461884513, Iran
| | - Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Parichehr Pasbakhsh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, 1461884513, Iran.
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Zahedi E, Sanaeierad A, Nikbakhtzadeh M, Roghani M, Zamani E. Simvastatin improves learning and memory impairment via gut-brain axis regulation in an ovariectomized/D-galactose Alzheimer's rat model. Behav Brain Res 2023; 453:114611. [PMID: 37541447 DOI: 10.1016/j.bbr.2023.114611] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/25/2023] [Accepted: 08/02/2023] [Indexed: 08/06/2023]
Abstract
AIM Alzheimer's disease (AD) is the most prevalent form of dementia with multiple etiology and no effective remedy. Statins are a group of medicines that are basically used to lower cholesterol. However, several studies have recently done to assess the potential relationship between statins use and dementia but presented controversial results. METHODS In this study, using ovariectomy and D-galactose injection, a model of AD was induced in female rats, and then the protective effects of oral administration of simvastatin were investigated. shuttle box and Y-maze tests were done to assess the animals' learning and memory performance. Using GC-MC, ELISA, Immunohistochemistry and tissue staining techniques, changes in the amount of short-chain fatty acids (SCFAs), plasma and hippocampus neuroinflammatory markers and histological changes in the intestine and hippocampus were assessed in sham, disease and treatment groups. KEY FINDINGS Oral administration of simvastatin improved the gut microbiome activity (increased the amount of SCFAs in fecal samples) and strengthened the tight junctions of intestinal cells. Moreover, simvastatin reduced the amount of TNF-α and IL-1β in plasma and hippocampus. Also, cell death and Amyloid plaques notably decreased in the simvastatin-treated hippocampal tissue. All these physiological changes led to better performance in behavioral tasks in the treatment group in comparison to the disease group. SIGNIFICANCE These findings provide evidence that simvastatin may improve gut-brain axis followed by improvement in learning and memory via an anti-inflammatory effect.
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Affiliation(s)
- Elham Zahedi
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ashkan Sanaeierad
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Marjan Nikbakhtzadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
| | - Elham Zamani
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Psychology, Faculty of Science, Memorial University of Newfoundland, St. John's, NL, Canada.
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Zahedi E, Sadr SS, Sanaeierad A, Roghani M. Valproate-induced murine autism spectrum disorder is associated with dysfunction of amygdala parvalbumin interneurons and downregulation of AMPK/SIRT1/PGC1α signaling. Metab Brain Dis 2023; 38:2093-2103. [PMID: 37184727 DOI: 10.1007/s11011-023-01227-1] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 04/27/2023] [Indexed: 05/16/2023]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition that is characterized by difficulty in social behavior and restricted behaviors. Also, in ASD, several accompanying disorders such as anxiety are observed. Considering the important role of amygdala in the pathophysiology of ASD, the present study focused on the neuronal changes and it possible signaling pathway in amygdala. After prenatal exposure to valproate (VPA; 600 mg/kg, i.p, on embryonic day 12.5), amount of ROS, MMP, caspase-3 activity, AMPK, SIRT1 and PGC1α proteins, and parvalbumin interneurons in the amygdala were assessed following evaluation of ASD and anxiety-like behaviors. Amygdala analysis revealed ROS accumulation and decreased MMP in autistic rats. In addition, caspase-3 activation elevated and immunoreactivity for parvalbumin interneurons decreased. These were accompanied by anxiety and autistic-like behaviors in open field test, elevated zero maze and U-Shaped 2 Choice Field maze. Also, our data showed that in the valproate group, protein levels of AMPK, SIRT1 and PGC1α reduced. Collectively, our results indicate that prenatal exposure to valproate leads to anxiety and autistic-like behaviors, partly through its targeting amygdala parvalbumin interneurons dysfunction and this might be affected by disturbed AMPK/SIRT1/PGC1α signaling pathway.
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Affiliation(s)
- Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Shahabeddin Sadr
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Ashkan Sanaeierad
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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4
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Zahedi E, Sadr SS, Sanaeierad A, Roghani M. Chronic acetyl-L-carnitine treatment alleviates behavioral deficits and neuroinflammation through enhancing microbiota derived-SCFA in valproate model of autism. Biomed Pharmacother 2023; 163:114848. [PMID: 37163781 DOI: 10.1016/j.biopha.2023.114848] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 01/25/2023] [Revised: 04/19/2023] [Accepted: 05/04/2023] [Indexed: 05/12/2023] Open
Abstract
Autism spectrum disorder is characterized by a variety of cellular and molecular abnormalities which leads to autism-associated behaviors. Besides behavioral defects, these individuals also suffer from various associated disorders such as gastrointestinal deficit, altered gut microbiota composition and their metabolite. This study examined the effect of ALC on microbiota SCFA production and its effects on brain inflammation in VPA autism model. After prenatal exposure to valproate (600 mg/kg, i.p.) on embryonic day 12.5, followed by ALC treatment (100 mg/kg during postnatal days 23-51, p.o.), ASD-like behaviors, SCFAs amount in feces, intestine integrity (Occludin and ZO-1 tight junction proteins), systemic and brain inflammation (TNF-α and IL-1β) were assessed. Then, Golgi-Cox staining and Western blot for Iba1 protein were utilized to identify the changes in microglia profile in cerebral cortex. In the VPA model, we found that induction of autism was associated with demoted levels of SCFAs in feces and disintegration of intestine tissue which led to elevated level of TNF-α in the plasma. Further, we characterized an increased number of microglia in our histology evaluation and Iba1 protein in cerebral cortex. We also observed elevated level of TNF-α and IL-1β in the cerebral cortex of VPA rat. All these abnormalities were significantly alleviated by ALC treatment. Overall, our findings suggest that alleviation of behavioral abnormalities by ALC therapy in the VPA model of autism is associated with an improvement in the gut microbiota SCFAs, intestinal barrier and recovery of microglia and inflammation in the brain.
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Affiliation(s)
- Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed-Shahabeddin Sadr
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Ashkan Sanaeierad
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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5
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Nikbakhtzadeh M, Ranjbar H, Moradbeygi K, Zahedi E, Bayat M, Soti M, Shabani M. Cross-talk between the HPA axis and addiction-related regions in stressful situations. Heliyon 2023; 9:e15525. [PMID: 37151697 PMCID: PMC10161713 DOI: 10.1016/j.heliyon.2023.e15525] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 05/09/2023] Open
Abstract
Addiction is a worldwide problem that has a negative impact on society by imposing significant costs on health care, public security, and the deactivation of the community economic cycle. Stress is an important risk factor in the development of addiction and relapse vulnerability. Here we review studies that have demonstrated the diverse roles of stress in addiction. Term searches were conducted manually in important reference journals as well as in the Google Scholar and PubMed databases, between 2010 and 2022. In each section of this narrative review, an effort has been made to use pertinent sources. First, we will provide an overview of changes in the Hypothalamus-Pituitary-Adrenal (HPA) axis component following stress, which impact reward-related regions including the ventral tegmental area (VTA) and nucleus accumbens (NAc). Then we will focus on internal factors altered by stress and their effects on drug addiction vulnerability. We conclude that alterations in neuro-inflammatory, neurotrophic, and neurotransmitter factors following stress pathways can impact related mechanisms on craving and relapse susceptibility.
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Affiliation(s)
- Marjan Nikbakhtzadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Hoda Ranjbar
- Neuroscience Research Center of Kerman, Institute of Neuropharmacology, Kerman University of Medical Science, Kerman, Iran
| | | | - Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Mahnaz Bayat
- Clinical Neurology Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Monavareh Soti
- Neuroscience Research Center of Kerman, Institute of Neuropharmacology, Kerman University of Medical Science, Kerman, Iran
- Corresponding author. Neuroscience Research Center, Neuropharmacology institute, Kerman University of Medical Sciences, Kerman, Postal Code: 76198-13159, Iran.
| | - Mohammad Shabani
- Neuroscience Research Center of Kerman, Institute of Neuropharmacology, Kerman University of Medical Science, Kerman, Iran
- Corresponding author. Neuroscience Research Center, Neuropharmacology institute, Kerman University of Medical Sciences, Kerman, Postal Code: 76198-13159, Iran.
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6
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Zamanian MY, Karimvandi MN, Nikbakhtzadeh M, Zahedi E, Bokov DO, Kujawska M, Heidari M, Rahmani MR. Effects of Modafinil (Provigil) on Memory and Learning in Experimental and Clinical Studies: From Molecular Mechanisms to Behaviour Molecular Mechanisms and Behavioural Effects. Curr Mol Pharmacol 2023; 16:507-516. [PMID: 36056861 DOI: 10.2174/1874467215666220901122824] [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: 02/11/2022] [Revised: 04/24/2022] [Accepted: 07/26/2022] [Indexed: 11/22/2022]
Abstract
Modafinil (MOD, 2-diphenyl-methyl-sulphinil-2-acetamide) is a stimulant-like medicine used to treat narcolepsy. Off-label uses include improving cognitive ability in the course of other diseases. This review aims to discuss findings demonstrating the memory and learningenhancing activity of MOD in experimental and clinical studies. We included behavioral evaluations alongside the effects of MOD at the cellular and molecular level. MOD in different animal disease models exerted beneficial effects on induced memory and learning impairment, which in some cases were accompanied by modulation of neurotransmitter pathways or neuroplastic capabilities, reducing oxidative stress, or expression of synaptic proteins. Individuals treated with MOD showed improved memory and learning skills in different conditions. These effects were associated with regulating brain activity in some participants, confirmed by functional magnetic resonance imaging. Presented herein, data support the use of MOD in treating memory and learning deficits in various disease conditions.
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Affiliation(s)
| | | | - Marjan Nikbakhtzadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Dmitry Olegovich Bokov
- Institute of Pharmacy, Sechenov First Moscow State Medical University, 8 Trubetskaya St., bldg. 2, Moscow, 119991, Russian Federation
| | - Małgorzata Kujawska
- Department of Toxicology, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznań, Poland
| | - Mahsa Heidari
- Department of Biochemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Mohammad Reza Rahmani
- Department of Physiology and Pharmacology, School of Medicine, Physiology-Pharmacology Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
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7
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Fazelinejad H, Zahedi E, Nazarian S, Kaffash Siuki Z, Nasri S, Dadmehr M, Mehrabi M, Khodarahmi R. Neuroprotective effect of Bis(Indolyl)phenylmethane in Alzheimer’s disease rat model through inhibition of hen Lysozyme amyloid fibril-induced neurotoxicity. J IRAN CHEM SOC 2022. [DOI: 10.1007/s13738-022-02692-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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8
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Moradbeygi K, Parviz M, Rezaeizadeh H, Zargaran A, Sahraian MA, Mehrabadi S, Nikbakhtzadeh M, Zahedi E. Anti-LINGO-1 improved remyelination and neurobehavioral deficit in cuprizone-induced demyelination. Iran J Basic Med Sci 2021; 24:900-907. [PMID: 34712419 PMCID: PMC8528247 DOI: 10.22038/ijbms.2021.53531.12043] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 06/13/2021] [Indexed: 11/29/2022]
Abstract
Objective(s): Central nervous system demyelination is the main feature of multiple sclerosis (MS). The most important unmet need in MS is use of treatments that delay the progression of the disease. Leucine-rich repeat and Immunoglobulin-like domain containing NOGO receptor-interacting protein 1(LINGO-1) have been known as inhibitors of oligodendrocyte differentiation and myelination. Materials and Methods: We investigated LINGO-1 antibody effects on remyelination and neurobehavioral deficit using cuprizone-induced demyelination. Animals were randomly divided into three groups (n = 10): (1) Control group; received the regular diet, (2) CPZ group; normal saline was injected intraperitoneally, and (3) Treatment group; LINGO-1 antibody (10 mg/kg) was injected IP once every six days for 3 weeks. We assessed the level of myelin basic protein (MBP), neurofilament heavy chain (NF200), and Brain-derived neuroprotective factor (BDNF) in the corpus callosum (CC) by immunostaining against MBP, NF200, and BDNF. Results: We found decreased levels of MBP, NF200, and BDNF in demyelinated CC, and anti-LINGO-1 treatment improved demyelinated structures. Furthermore, motor impairment was measured by Open-field (OFT) and Balance beam tests. In the treatment group, motor impairment was significantly improved. Conclusion: These results provide evidence that LINGO-1 antibody can improve remyelination and neurobehavioral deficit.
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Affiliation(s)
- Khadijeh Moradbeygi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran, Department of Nursing, Abadan Faculty of Medical Sciences, Abadan, Iran
| | - Mohsen Parviz
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Rezaeizadeh
- Department of Traditional Medicine, School of Persian Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Arman Zargaran
- Department of Traditional Pharmacy, School of Traditional Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sahraian
- Department of Neurology, Neuroscience Institute, MS Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shima Mehrabadi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Marjan Nikbakhtzadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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9
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Hasani-Sadrabadi MM, Pouraghaei S, Zahedi E, Sarrion P, Ishijima M, Dashtimoghadam E, Jahedmanesh N, Ansari S, Ogawa T, Moshaverinia A. Antibacterial and Osteoinductive Implant Surface Using Layer-by-Layer Assembly. J Dent Res 2021; 100:1161-1168. [PMID: 34315313 PMCID: PMC8716140 DOI: 10.1177/00220345211029185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Osseointegration of dental, craniofacial, and orthopedic implants is critical for their long-term success. Multifunctional surface treatment of implants was found to significantly improve cell adhesion and induce osteogenic differentiation of dental-derived stem cells in vitro. Moreover, local and sustained release of antibiotics via nanolayers from the surface of implants can present unparalleled therapeutic benefits in implant dentistry. Here, we present a layer-by-layer surface treatment of titanium implants capable of incorporating BMP-2-mimicking short peptides and gentamicin to improve their osseointegration and antibacterial features. Additionally, instead of conventional surface treatments, we employed polydopamine coating before layer-by-layer assembly to initiate the formation of the nanolayers on rough titanium surfaces. Cytocompatibility analysis demonstrated that modifying the titanium implant surface with layer-by-layer assembly did not have adverse effects on cellular viability. The implemented nanoscale coating provided sustained release of osteoinductive peptides with an antibacterial drug. The surface-functionalized implants showed successful osteogenic differentiation of periodontal ligament stem cells and antimicrobial activity in vitro and increased osseointegration in a rodent animal model 4 wk postsurgery as compared with untreated implants. Altogether, our in vitro and in vivo studies suggest that this approach can be extended to other dental and orthopedic implants since this surface functionalization showed improved osseointegration and an enhanced success rate.
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Affiliation(s)
- M M Hasani-Sadrabadi
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, USA
- Department of Bioengineering, University of California, Los Angeles, CA, USA
| | - S Pouraghaei
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - E Zahedi
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - P Sarrion
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - M Ishijima
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - E Dashtimoghadam
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - N Jahedmanesh
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - S Ansari
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - T Ogawa
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - A Moshaverinia
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, USA
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Mehrabadi S, Alinaghpour A, Zahedi E. Effect of Curcumin on Beta-Amyloid Plasma Level in Alzheimer Disease: A Systematic Review and Meta-analysis. Int Clin Neurosci J 2021. [DOI: 10.34172/icnj.2021.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Shima Mehrabadi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Azam Alinaghpour
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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11
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Kiasalari Z, Afshin-Majd S, Baluchnejadmojarad T, Azadi-Ahmadabadi E, Esmaeil-Jamaat E, Fahanik-Babaei J, Fakour M, Fereidouni F, Ghasemi-Tarie R, Jalalzade-Ogvar S, Khodashenas V, Sanaierad A, Zahedi E, Roghani M. Ellagic acid ameliorates neuroinflammation and demyelination in experimental autoimmune encephalomyelitis: Involvement of NLRP3 and pyroptosis. J Chem Neuroanat 2020; 111:101891. [PMID: 33217488 DOI: 10.1016/j.jchemneu.2020.101891] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/07/2020] [Accepted: 11/14/2020] [Indexed: 10/23/2022]
Abstract
Multiple sclerosis (MS) is presented as the most common autoimmune and demyelinating neurological disorder with incapacitating complications and with no definite therapy. Most treatments for MS mainly focus on attenuation of its severity and recurrence. To model MS reliably to study pathogenesis and efficacy of possible chemicals, experimental autoimmune encephalomyelitis (EAE) condition is induced in rodents. Ellagic acid is a neuroprotective polyphenol that can protect against demyelination. This study was planned and conducted to assess its possible beneficial effect in MOG-induced EAE model of MS with emphasis on uncovering its modes of action. Ellagic acid was given p.o. (at doses of 10 or 50 mg/kg/day) after development of clinical signs of MS to C57BL/6 mice immunized with MOG35-55. Results showed that ellagic acid can ameliorate severity of the disease and partially restore tissue level of TNFα, IL-6, IL-17A and IL-10. Besides, ellagic acid lowered tissue levels of NLRP3 and caspase 1 in addition to its mitigation of neuroinflammation, demyelination and axonal damage in spinal cord specimens of EAE group. As well, ellagic acid treatment prevented reduction of MBP and decreased GFAP and Iba1 immunoreactivity. Taken together, ellagic acid can decrease severity of EAE via amelioration of astrogliosis, astrocyte activation, demyelination, neuroinflammation and axonal damage that is partly related to its effects on NLRP3 inflammasome and pyroptotic pathway.
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Affiliation(s)
- Zahra Kiasalari
- Neurophysiology Research Center, Shahed University, Tehran, Iran
| | | | | | | | | | - Javad Fahanik-Babaei
- School of Medicine, Iran University of Medical Sciences and Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Marzieh Fakour
- Department of Physiology, School of Medicine, Shahed University, Tehran, Iran
| | - Farzane Fereidouni
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Vahid Khodashenas
- Department of Physiology, School of Medicine, Shahed University, Tehran, Iran
| | - Ashkan Sanaierad
- Department of Physiology, School of Medicine, Shahed University, Tehran, Iran
| | - Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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12
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Kiasalari Z, Heydarifard R, Khalili M, Afshin-Majd S, Baluchnejadmojarad T, Zahedi E, Sanaierad A, Roghani M. Ellagic acid ameliorates learning and memory deficits in a rat model of Alzheimer's disease: an exploration of underlying mechanisms. Psychopharmacology (Berl) 2017; 234:1841-1852. [PMID: 28303372 DOI: 10.1007/s00213-017-4589-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [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: 05/20/2016] [Accepted: 03/05/2017] [Indexed: 12/16/2022]
Abstract
RATIONALE Alzheimer's disease (AD) is a neurodegenerative disorder with irreversible loss of intellectual abilities. Current therapies for AD are still insufficient. OBJECTIVE In this study, the effect of ellagic acid on learning and memory deficits was evaluated in intrahippocampal amyloid beta (Aβ25-35)-microinjected rats and its modes of action were also explored. METHODS AD rat model was induced by bilateral intrahippocampal microinjection of Aβ25-35 and ellagic acid was daily administered (10, 50, and 100 mg/kg), and learning, recognition memory, and spatial memory were evaluated in addition to histochemical assessment, oxidative stress, cholinesterases activity, and level of nuclear factor-kappaB (NF-κB), Toll-like receptor 4 (TLR4), and nuclear factor (erythroid-derived 2)-like 2 (Nrf2). RESULTS The amyloid beta-microinjected rats showed a lower discrimination ratio in novel object and alternation score in Y maze tasks and exhibited an impairment of retention and recall capability in passive avoidance paradigm and higher working and reference memory errors in radial arm maze (RAM). In addition, amyloid beta group showed a lower number of Nissl-stained neurons in CA1 area in addition to enhanced oxidative stress, higher activity of cholinesterases, greater level of NF-κB and TLR4, and lower level of nuclear/cytoplasmic ratio for Nrf2 and ellagic acid at a dose of 100 mg/kg significantly prevented most of these abnormal alterations. CONCLUSIONS Ellagic acid pretreatment of intrahippocampal amyloid beta-microinjected rats could dose-dependently improve learning and memory deficits via neuronal protection and at molecular level through mitigation of oxidative stress and acetylcholinesterase (AChE) activity and modulation of NF-κB/Nrf2/TLR4 signaling pathway.
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Affiliation(s)
- Zahra Kiasalari
- Neurophysiology Research Center, Shahed University, Tehran, Iran
| | | | - Mohsen Khalili
- Neurophysiology Research Center, Shahed University, Tehran, Iran
| | | | | | - Elham Zahedi
- School of Medicine, Shahed University, Tehran, Iran
| | | | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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Mashayekhi G, Zahedi E, Movahedian Attar H, Sharifi F. Flow mediated dilation with photoplethysmography as a substitute for ultrasonic imaging. Physiol Meas 2015; 36:1551-71. [PMID: 26057334 DOI: 10.1088/0967-3334/36/7/1551] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Flow mediated dilation (FMD) is a non-invasive method for endothelial function assessment providing an index extracted from ultrasonic B-mode images. Although utilized in the research community, the difficulty of its application and high cost of ultrasonic devices prevent it from being widely used in clinical settings. In this study we show that substituting the ultrasonic device with more easily handled and low cost photoplethysmography and electrocardiography is possible. We introduce new indices based on the photoplethysmogram (PPG) and electrocardiogram (ECG) and show that they are correlated with the ultrasound-based FMD Index. To this end, a conventional ultrasound FMD test was carried out whereas PPG and ECG were simultaneously recorded from 20 healthy volunteers (13 M, 7 F) in the age range of 23-32 years. Our results show a significant correlation between our proposed index and ultrasound FMD when using the ECG in conjunction with the PPG (R = 0.77, p < 0.000 01). Using the PPG alone produces a lower correlation (R = 0.72, p < 0.0001). Compared to conventional FMD, the proposed method is low cost and does not require any special operator skills. Hence it may be easily utilized as a screening tool in locations deprived of high-end ultrasound imaging devices.
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Affiliation(s)
- G Mashayekhi
- Biomedical Engineering Lab., School of Electrical Engineering, Sharif University of Technology, Tehran, Iran
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Ghaedi M, Tavallali H, Montazerozohori M, Zahedi E, Amirineko M, Khodadoust S, Karimipour G. Preconcentration of Zn2+ and Cu2+ ions from food and vegetable samples using modified activated carbon. Environ Monit Assess 2012; 184:6583-6591. [PMID: 22105849 DOI: 10.1007/s10661-011-2443-6] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Accepted: 11/02/2011] [Indexed: 05/31/2023]
Abstract
In this work, two N/S-containing chelating agents 2-(4-methoxybenzylideneamino)thiophenol (2-4-MBAT) and 2-(4-chlorobenzylideneamino) benzenethiol (2-4-CBABT) were synthesized as new sorbents and were used for preconcentration of Zn(2+) and Cu(2+) ions in food and vegetable samples. In the proposed procedure, the trace amount of Zn(2+) and Cu(2+) ions from 250 mL of sample solution at pH = 5.0 was preconcentrated by 1 g of activated carbon (AC) loaded with 15 mg of 2-4-MBAT and 2-4-CBABT separately. The breakthrough volumes (maximum sample volume that their metal ions quantitatively can be enriched) for solid-phase extraction (SPE) procedure based on the AC modified with 2-4-MBAT and 2-4-CBABT were 800 and 750 mL, respectively. The sorbed Zn(2+) and Cu(2+) ions were efficiently eluted by 8 mL of 4 mol L(-1) HNO(3) and preconcentration factor of 112.5 and 93.7 and experimental enhancement factor of 30 and 35 ions were obtained for Zn(2+) and Cu(2+), respectively. The application of this enrichment procedure allowed the extraction of trace metal ions with recoveries exceeding of 90%.
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Affiliation(s)
- M Ghaedi
- Department of Chemistry, Yasouj University, Yasouj 75914-35, Iran.
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15
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Abstract
A Barker sequence is employed for the synchronization of two photoplethysmogram (PPG) channels. The correctness of this technique is demonstrated by recording a PPG signal, injecting a Barker sequence at the start of this trace and producing a delayed version of it. After preprocessing, cross-correlation techniques are utilized for accurate time alignment of the two traces. The algorithm can correct for any time misalignment as long as the synchronization sequence appears on both channels.
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Affiliation(s)
- E Zahedi
- Department of Electrical, Electronic and System Engineering, Faculty of Engineering, National University Malaysia (Universiti Kebangsaan Malaysia), 43600 Bangi, Selangor, Malaysia
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Shiroudi A, Tahan A, Zahedi E. The unimolecular thermal decomposition of oxetane and its methyl derivatives: An Ab initio and RRKM calculations. Russ J Phys Chem 2012. [DOI: 10.1134/s0036024412060246] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Emamian S, Aghaie M, Zardoost M, Zahedi E, Zare K. Kinetic and thermodynamic study of the substituent effect on the amino-Claisen rearrangement ofpara-substitutedN-allyl-N-arylamine: a Hammett study via DFT. Molecular Simulation 2010. [DOI: 10.1080/08927022.2010.497926] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kok Beng Gan, Zahedi E, Ali M. Transabdominal Fetal Heart Rate Detection Using NIR Photopleythysmography: Instrumentation and Clinical Results. IEEE Trans Biomed Eng 2009; 56:2075-82. [DOI: 10.1109/tbme.2009.2021578] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
Cardiotocograph (CTG) is widely used in everyday clinical practice for fetal surveillance, where it is used to record fetal heart rate (FHR) and uterine activity (UA). These two biosignals can be used for antepartum and intrapartum fetal monitoring and are, in fact, nonlinear and non-stationary. CTG recordings are often corrupted by artifacts such as missing beats in FHR, high-frequency noise in FHR and UA signals. In this paper, an empirical mode decomposition (EMD) method is applied on CTG signals. A recursive algorithm is first utilized to eliminate missing beats. High-frequency noise is reduced using EMD followed by the partial reconstruction (PAR) method, where the noise order is identified by a statistical method. The obtained signal enhancement from the proposed method is validated by comparing the resulting traces with the output obtained by applying classical signal processing methods such as Butterworth low-pass filtering, linear interpolation and a moving average filter on 12 CTG signals. Three obstetricians evaluated all 12 sets of traces and rated the proposed method, on average, 3.8 out of 5 on a scale of 1(lowest) to 5 (highest).
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Affiliation(s)
- B N Krupa
- Department of Electrical Electronic and Systems Engineering, University Kebangsaan Malaysia, Bangi, Malaysia.
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Zahedi E, Aghaie M, Zare K, Aghaie H. Solvent effects on stability and 15N NMR shielding of 5-methylcytosine tautomers: A theoretical approach. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2008.12.020] [Citation(s) in RCA: 5] [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: 10/21/2022]
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Abstract
This study was conducted to investigate the utility and efficacy of finger photoplethysmogram pulse amplitude (PPG-AC) in comparison with the standard Doppler ultrasound in assessing an endothelial function via flow-mediated dilation (FMD). High-resolution B-mode scanning of the right brachial artery (BA) of 31 healthy subjects aged 39.7 +/- 11.3 (range 22-64) years and 52 risk subjects aged 47.7 +/- 10.8 (range 30-65) years were performed before and after 4 min of upper arm occlusion. Concurrent with the ultrasound measurement (where color Doppler imaging was used to enhance arterial boundary detection), PPG signals were recorded from both index fingers for cross evaluation and comparison. Our results show that the finger PPG-AC exhibits a similar response to that of the well-known BA dilation: following the release of pressure (cuff around the BA), the PPG-AC increases abruptly before slowly decreasing toward the baseline. The peak PPG-AC is reached significantly faster than the peak FMD measured by ultrasound among healthy and risk groups (P < 0.001). The proposed technique using a finger photoplethysmogram can be applied in a rapid and non-invasive assessment of peripheral vascular functions as an alternative low-cost and less operator-dependent tool compared to ultrasound.
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Affiliation(s)
- E Zahedi
- Biomedical Engineering Laboratory, School of Electrical Engineering, Sharif University of Technology, Tehran, Iran
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