5,858 results match your criteria: "Molecular Research Center[Affiliation]"

Electrochemical biosensors in early detection of Parkinson disease.

Clin Chim Acta

January 2025

Psychiatry and Behavioral Sciences Research Center, Addiction Institute, and Department of Psychiatry, School of Medicine, Mazandaran University of Medical Sciences, Sari,Iran. Electronic address:

Parkinson's disease (PD) is a progressive neurodegenerative disorder affecting the motor system, with symptoms including tremors, rigidity, bradykinesia, and postural instability. Affecting over six million people globally, PD's pathophysiology is marked by the loss of dopaminergic neurons in the substantia nigra. Early diagnosis is crucial for effective management, yet current methods are limited by low sensitivity, high cost, and the need for advanced equipment.

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Today, camel milk consumption in the Middle East is trendy because it is believed that it reduces the risk of cancer. Recently, studies have discovered that most of milk's beneficial effects are because of its nanoparticles, especially exosomes. The objective of the present research was to investigate the anti-cancer effects of camel milk exosomes (CMEXOs) in the murine colorectal cancer cell line (CT-26).

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The Effect of Exosomes Isolated from Poly (I:C) Treated Human Wharton's Jelly Mesenchymal Stem Cells on CD4+CD25+Foxp3+ Regulatory T Cells.

Iran J Allergy Asthma Immunol

May 2024

Department of Immunology, School of Medicine Ahvaz Jundishapur University of Medical sciences, Ahvaz, Iran AND Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Mesenchymal stem cells (MSCs) are a potential cell therapy candidate for autoimmune and inflammatory diseases due to their multilineage capacity and immune modulating function. MSCs exert immunomodulatory effects on target cells through the secretion of exosomes. Inflammatory conditions such as Toll-like receptors (TLRs) engagement can change the biological functions and immunomodulatory activities of MSCs and the contents of exosomes derived from MSCs are changed.

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Nuclear factor erythroid 2-related factor 2 (Nrf2) is a regulator of the cellular antioxidant defense system that plays an important role in reducing the risk of various pathophysiological conditions, including cancer. Targeting Nrf2 presents an attractive therapeutic approach to overcome these challenges and improve cancer treatment outcomes. Nanoparticles, with their unique physicochemical properties, offer several advantages over conventional therapies for targeting Nrf2.

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Article Synopsis
  • Breast cancer is a major health issue, and thymoquinone (TQ) has potential as a treatment but faces challenges with solubility.
  • The study aimed to improve TQ delivery to breast cancer cells by using mesoporous silica nanoparticles coated with liposomes for better controlled drug release.
  • Results showed that the nanoparticles had ideal characteristics for drug delivery, significantly increased cellular uptake, reduced cell viability, and higher apoptosis rates compared to free TQ, highlighting their potential in targeted breast cancer therapy and indicating a need for further research.
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Biocompatible and biodegradable nerve growth conduits (NGCs) provide a promising alternative to conventional nerve grafting for peripheral nerve regeneration. Incorporating nanoclay (NC) has been shown to increase the hydrophilicity and flexibility of polymeric scaffolds. In the present study, poly caprolactone-alginate (PCL-ALG) conduits with varying percentages of NC (0.

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Background: Carbon dots (CDs) are the research hotspots in antimicrobial applications. Also, due to the importance of calcium ions in skin regeneration, mesoporous hydroxyapatite nanoparticles (mHAP NPs) were prepared. This study aimed to evaluate the wound healing efficiency of both CD and mHAP NPs simultaneously.

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Acute myeloid leukemia (AML) is a hostile hematological malignancy under great danger of relapse and poor long-term survival rates, despite recent therapeutic advancements. To deal with this unfulfilled clinical necessity, innovative cell-based immunotherapies have surfaced as promising approaches to improve anti-tumor immunity and enhance patient outcomes. In this comprehensive review, we provide a detailed examination of the latest developments in cell-based immunotherapies for AML, including chimeric antigen receptor (CAR) T-cell therapy, T-cell receptor (TCR)-engineered T-cell therapy, and natural killer (NK) cell-based therapies.

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microRNAs (miRNAs) have a serious and dynamic function in spermatogenesis. These molecules have been recognized as crucial parts of the control of gene activity, and their involvement in the regulation of target genes has been extensively studied. This research aimed to determine the expression of CRISP3 and miR-493-5p, miR-204-5p, and miR-182-5p in the seminal plasma fluid and spermatozoa and to examine the relationship between CRISP3 and the mentioned miRNAs in 57 infertile men with Asthenozoospermia (AZ) (n = 19), Teratoasthenozoospermia (TAZ) (n = 19), and Normozoospermia (NZ) (n = 19).

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Introduction: Schizophrenia (SCZ) is a psychiatric disorder caused by environmental, social, and genetic factors. This phenomenon is a severe neuropsychiatric disorder with a 1% worldwide prevalence. As SCZ is an exclusively human disorder, animal models cannot mimic SCZ pathophysiology.

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In the present study, nano-hydroxyapatite (n-HA) powder was extracted from carp bone waste to fabricate porous n-HA substrates by a molding and sintering process. Subsequently, the substrates were loaded with different amounts of sodium fluoride (NaF) through immersion in NaF suspensions for 10, 7.5, and 5 min.

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E. coli is a common pathogenic microorganism responsible for numerous food and waterborne illnesses. Traditional detection methods often require long, multi-step processes and specialized equipment.

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One of the critical challenges in managing colorectal cancer (CRC) is the development of oxaliplatin (OXP) resistance. Long non-coding RNAs (lncRNAs) have a crucial role in CRC progression and chemotherapy resistance, with exosomal lncRNAs emerging as potential biomarkers. This study aimed to predict key lncRNAs involved in OXP-resistance using in-silico methods and validate them using RT-qPCR methods in CRC cells and their isolated exosomes.

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Background And Purpose: Cannabidiol (CBD) is a phenolic terpene compound with anticancer, antioxidant, anti-inflammatory, antibacterial, neuroprotective, and anticonvulsant properties. Since the effects of CBD on sodium arsenite (As)-induced nephrotoxicity have not been fully determined, this study investigated the effect of CBD on As-induced nephrotoxicity by evaluating the NOX4 and NF-kB pathways in mice.

Experimental Approach: 48 male mice were divided into six groups (8 each) including group 1, receiving saline for 14 days; group 2, receiving CBD (10 mg/kg, intraperitoneally) from the 7 to the 14 day; group 3, receiving As (10 mg/kg) for 14 days by gavage; and treatment groups 4-6, receiving CBD (2.

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Background: Because of the pathophysiological role of vitamin D in health, there is an increased interest to check the clinical status of this vitamin. Immunochemical assays are commonly employed to determine 25-hydroxyvitamin D (25 (OH) D) in clinical laboratories and its testing could be influenced by pre-analytic and analytic issues. The aim of this study was to compare the 25(OH)D results obtained from three commonly used immunoassays in pregnant women to check a possible discrepancy between tests.

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Article Synopsis
  • Melanoma is a deadly cancer that has become more common, and polysaccharides from medicinal mushrooms have potential therapeutic properties, including antitumor effects.
  • In the study, the impact of mushroom extracts on melanoma cells was analyzed using mitochondrial assays, revealing that lower concentrations (30, 45, and 60 µg/ml) effectively induced cancer cell apoptosis.
  • Results indicated that at these concentrations, the extract significantly affected mitochondrial activity and increased reactive oxygen species, while higher concentrations did not show these effects.
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  • Polycyclic aromatic hydrocarbons (PAHs) are harmful chemicals linked to cancer, found in both indoor and outdoor environments, and this study measured their levels in coffee shops in Zahedan, Iran during winter 2022.
  • The researchers recorded high average concentrations of PAHs in both particulate (13,411.86 ng/m³) and gaseous (6,432.76 ng/m³) forms, with major sources identified as fossil fuel use and environmental tobacco smoke.
  • Risk assessments showed that both adults and children face significant lifetime cancer risks from inhaling PAHs, indicating an urgent need for improved health warnings and stricter indoor smoking regulations in public spaces.
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Article Synopsis
  • - The study focuses on adipose-derived mesenchymal stem cells (ASCs) and how the combination of vitamin C, doxycycline, and azithromycin affects genes related to cellular senescence, which is important for their potential therapeutic uses.
  • - After treating human ASCs with the drugs, it was found that vitamin C significantly reduced p21 gene expression, suggesting it aids cell cycle progression, while doxycycline and azithromycin increased p21 expression and influenced cell cycle phases.
  • - The combination treatment of all three drugs indicated complex interactions that could enhance research into reducing senescence in ASCs, highlighting a promising avenue for future therapeutic strategies.
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Methicillin-resistant (MRSA) is the most common cause of acute bacterial arthritis. Due to the increase in antibiotic resistance in these bacteria, the discovery of new antibacterial agents has become one of the hot topics in the scientific community. Here, we prepared a nano-sized porous biocompatible magnetic hydroxyapatite through a solvothermal method.

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Evaluation relationship between VDR gene and clinical and inflammatory factors in patients with RRMS.

Eur J Transl Myol

October 2024

Department of Neuroscience, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran; Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran.

Article Synopsis
  • The study investigates the link between vitamin D receptor (VDR) gene changes and clinical factors in relapsing-remitting multiple sclerosis (RRMS) patients, as well as their association with obesity and other adipocyte-related factors.
  • It finds that the FokI polymorphism in the VDR gene greatly increases the risk of developing RRMS, especially for individuals with the FF genotype, compared to healthy individuals.
  • However, it concludes that none of the other examined polymorphisms show significant risk differences between obese patients and healthy controls, suggesting the need for more extensive research to validate these findings.
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Article Synopsis
  • - The study focuses on developing a targeted therapeutic agent, FITC-SpyC-SpyT-CD22Nb, combining SpyCatcher and SpyTag proteins to recognize the CD22 surface protein found in malignant B cells.
  • - Researchers used specific molecular techniques to express, purify, and label the proteins, confirming successful binding to CD22+ Raji cells with flow cytometry while showing no interaction with CD22- K562 cells.
  • - The results suggest that the FITC-SpyC-SpyT-CD22Nb molecule could be used for precise targeting in cancer therapies like CAR-T cell therapy and antibody-drug conjugates.
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Introduction: The last strategy in targeted drug delivery systems is to deliver the anticancer drug to the tumor tissue to increase its therapeutic effect and minimize its undesirable side effects. In line with this goal in this research, the redox/pH-responsive disulfide magnetic nanocarriers based on PF127-NH2/L-cysteine-CM-β-CD-FA were synthesized and evaluated in a doxorubicin delivery system.

Methods: We effectively surrounded Fe3O4 nanoparticles with SiO2 using the sol-gel method, and then confidently coated them with oleic acid on Fe3O4@SiO2 nanoparticles.

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