150,549 results match your criteria: "Tehran; Pars General Hospital[Affiliation]"

Genetic structure of populations in wildlife of north and northeast Iran.

Int J Parasitol Parasites Wildl

April 2025

Department of Medical Parasitology & Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

is a parasite prevalent in the temperate regions of the vast Palearctic realm, including Iran. In this study, we investigated infection in road-killed animals and carcasses in northern and northeastern Iran by artificial digestion. We assessed species identification and intraspecific genetic diversity using the markers 5S ribosomal DNA intergenic spacer (5S rDNA), internal transcribed spacer I (ITS1), and cytochrome oxidase subunit I ().

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Electrochemical energy storage plays a critical role in the transition to clean energy. With the growing demand for efficient and sustainable energy solutions, supercapacitors have gained significant attention due to their high specific capacitance, rapid charge/discharge capabilities, long lifespan, safe operation across various temperatures, and minimal maintenance needs. This study introduces a novel approach for the synthesis of high-performance supercapacitor electrodes by using MnNi-MOF-74 as a precursor.

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Manganese dioxide (MnO) is a well-known pseudocapacitive material that has been extensively studied and highly regarded, especially in supercapacitors, due to its remarkable surface redox behavior, leading to a high specific capacitance. However, its full potential is impeded by inherent characteristics such as its low electrical conductivity, dense morphology, and hindered ionic diffusion, resulting in limited rate capability in supercapacitors. Addressing this issue often requires complicated strategies and procedures, such as designing sophisticated composite architectures.

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Development of efficient drug delivery systems remains a critical challenge in pharmaceutical applications, necessitating novel approaches to improve drug loading and release profiles. In this study, a novel method is presented for fabricating crosslinked polydopamine particles (XPDPs) using a water/water Pickering emulsion system. The emulsion is composed of poly(ethylene glycol) and dextran, stabilized by polydopamine (PDA) particles.

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This study investigates the properties of egg-free mayonnaise prepared using chia seed protein hydrolysate (CSPH) and pectin extracted from apple pomace (PA) as alternatives to egg, comparing it to traditional egg-based mayonnaise. Chia seed protein was hydrolyzed using Protamex and Bromelain enzymes, while apple pectin was extracted through acid hydrolysis at 90 °C. Four mayonnaise treatments were prepared: T1 (control: 6 % egg), T2 (4 % egg + 1 % CSPH + 1 % PA), T3 (2 % egg + 2 % CSPH + 2 % PA), and T4 (0 % egg + 3 % CSPH + 3 % PA).

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The recent adoption of modern technologies has led to the fourth industrial revolution or Industry 4.0 (I4.0).

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Inducing apoptosis in acute myeloid leukemia; mechanisms and limitations.

Heliyon

January 2025

Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.

Acute myeloid leukemia is the expansion of leukemic stem cells which might originate from a stem cell or a progenitor which has acquired self-renewal capacity. An aggregation of leukemic blasts in bone marrow, peripheral blood, and extramedullary tissue will result in acute myeloid leukemia. The main difficulty in treating acute myeloid leukemia is multidrug resistance, leading to treatment failure.

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Introduction Despite the favorable prognosis of Hodgkin's disease (HD), some patients experience disease recurrence. Therefore, determining recurrence prognostic factors is very crucial to identify patients at risk of early relapse, maintain remission, and improve outcomes. Materials and methods This retrospective cohort study enrolled HD patients at the National Research Institute of Tuberculosis and Lung Disease (NRITLD), Masih Daneshvari Hospital, between January 1, 2002, and June 30, 2018.

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A 42-year-old woman was referred to an emergency department. She had an unresponsive corneal ulcer that was initially diagnosed as virus keratitis. Later, the microbiological studies revealed fungal keratitis.

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Stem cell therapy for bladder regeneration: A comprehensive systematic review.

Regen Ther

March 2025

Pediatric Urology and Regenerative Medicine Research Center, Gene Cell and Tissue Research Institute Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran.

Tissue engineering has been considered a potential choice for urinary system reconstruction. Here, we aim to a broad spectrum of employed stem cells in bladder regeneration by performing a comprehensive systematic review. In January 2024, we searched Scopus, PubMed, and Embase databases for studies that tried bladder regeneration by tissue engineering using stem cells.

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Coronavirus disease 2019 (COVID-19) is a viral pandemic and a matter of concern. It also mimics viral pneumonia with cough and fever but also causes severe sequels and various complications. Subdural empyema is a very rare brain infection presenting mostly with fever, weakness, and altered level of consciousness, and has been recently noted as a new complication of COVID-19.

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A magnetic-biopolymer composite of carboxymethyl cellulose (CMC), designated as FeO@CMC, was synthesized featuring remarkable stability and an active surface with a green biosynthetic method. This composite was engineered to serve as a substrate for stabilizing silver nanoparticles (Ag NPs) with enhanced functional properties. The catalytic efficacy of the nanocatalyst, incorporating Ag NPs at concentrations of 3%, 7%, and 10%, was evaluated for the reduction of the toxic compound 4-nitrophenol to the beneficial 4-aminophenol.

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Due to the presence of the pyridyl directing group, -aryl-2-aminopyridines can quickly form stable complexes with metals, leading to cyclization and functionalization reactions. A large number of N-heterocycles and nitrogen-based molecules can be easily constructed this direct and atom-economical cross-coupling strategy. In this review, we have highlighted the transformations of -aryl-2-aminopyridines in the presence of various transition metal catalysts, such as palladium, rhodium, iridium, ruthenium, cobalt and copper.

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Aims: While most clinical guidelines recommend using a 64-projection view technique, some protocols do not specify a preference between 32-projection and 64-projection methods for conducting myocardial perfusion scintigraphy (MPS), which shows the lack of consensus in this matter. Nevertheless, these guidelines and protocols have not provided us with compelling evidence to support why the 64-projection technique is usually chosen. Thus, we aimed to determine if there is a significant difference between them in the assessment of cardiac perfusion and functional indices.

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Introduction: Colorectal cancer (CRC) is a rising threat, necessitating accurate early diagnosis.

Aim: This meta-analysis scrutinised methylated septin 9 (SEPT9) and carcinoembryonic antigen (CEA) in CRC.

Methods: From January 2012 to December 2022, databases including PubMed and Google Scholar were explored for English publications.

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Background: Meningitis is highly prevalent in infant because their immune system is immature and they have less resistance to diseases. Among bacterial agents, is recognized as one of the most important causes of meningitis in infants.

Case Presentation: Herein, we report a case of late-onset meningitis, caused by (Patient:17-day-old female infant).

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() is an opportunistic intracellular pathogen that causes listeriosis in human and leads to high mortality rate. is resistant to various antibiotics due to its ability to form biofilm. Designing a new generation of antibiotics is a very expensive and time-consuming process.

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The leaf economics spectrum (LES) characterizes a tradeoff between building a leaf for durability versus for energy capture and gas exchange, with allocation to leaf dry mass per projected surface area (LMA) being a key trait underlying this tradeoff. However, regardless of the biomass supporting the leaf, high rates of gas exchange are typically accomplished by small, densely packed stomata on the leaf surface, which is enabled by smaller genome sizes. Here, we investigate how variation in genome size-cell size allometry interacts with variation in biomass allocation (i.

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Objectives: Bloodstream infection is one of the main causes of death in hematopoietic stem cell transplant recipients. Acinetobacter baumannii is a bacteria associated with bloodstream infection and subsequent death from high antibiotic resistance in this group of patients. We evaluated bloodstream infections of Acinetobacter baumannii in hematopoietic stem cell transplant recipients.

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Hemophilia A (HA) is an inherited condition that is characterized by a lack of coagulation factor VIII (FVIII), which is needed for blood clotting. To produce recombinant factor VIII (rFVIII) for treatment, innovative methods are required. This study presents a thorough examination of the genetic engineering and biotechnological methods that are essential for the production of this complex process.

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Background: The Anopheles culicifacies complex is one of the most important malaria vectors in Southeast Asia and Southeastern Iran. Although the sibling species within this complex are morphologically indistinguishable, they differ significantly in their disease transmission potential, blood-feeding behaviour, and other biological traits. Cytogenetic and chromosomal studies have identified five sibling species within this complex: A, B, C, D, and E.

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Crosstalk between non-coding RNAs and programmed cell death in colorectal cancer: implications for targeted therapy.

Epigenetics Chromatin

January 2025

Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.

Background: Colorectal cancer (CRC) remains one of the most common causes of cancer-related mortality worldwide. Its progression is influenced by complex interactions involving genetic, epigenetic, and environmental factors. Non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), have been identified as key regulators of gene expression, affecting diverse biological processes, notably programmed cell death (PCD).

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Association between Mediterranean diet and metabolic health status among adults was not mediated through serum adropin levels.

BMC Public Health

January 2025

Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran.

Background: Prevalence of metabolic disorders has been increased in recent years around the world. The relationship between Mediterranean diet (MD) with metabolic health status and serum adropin levels has been less examined in Iranian adults. We investigated the association between MD compliance with metabolic health status and adropin hormone in Iranian adults.

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Background: Preserving plant genetic resources is essential for tackling global food security challenges. Effectively meeting future agricultural demands requires comprehensive and efficient assessments of genetic diversity in breeding programs and germplasm from gene banks. This research investigated the diversity of pheno-morphological traits, along with the fatty acid and tocopherol content and composition, in 135 double haploid lines of camelina.

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Vitiligo is a chronic depigmenting condition that causes amelanotic macules and patches on the skin. Despite various treatment options, treating vitiligo is a challenge. This study aimed to evaluate the combination of laser CO fractional and narrow-band ultraviolet B (NB-UVB) versus NB-UVB monotherapy in vitiligo patients.

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