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

Introduction: The development of efficient and sustainable catalytic methodolo-gies has garnered considerable attention in contemporary organic synthesis.

Methods: Herein, we present a novel approach employing the Cu@DPP-SPION catalyst for the synthesis of ethyl 4-(aryl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate derivatives. This versatile catalytic system incorporates copper nanoparticles supported on 4-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)benzoic acid-functionalized superparamagnetic iron oxide nanoparticles (SPIONs).

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Nondilated left ventricular cardiomyopathy (NDLVC) is a newly defined category of cardiomyopathy. We sought to evaluate and compare the phenotype of NDLVC with DCM using cardiac magnetic resonance (CMR) imaging and to investigate the prognostic significance of these conditions. One hundred and fifty patients suspected of having cardiomyopathy referred for CMR were recruited.

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This study aims to measure the effects of different dietary concentrations of triticale hay (TH) on productive performance, carcass characteristics, microbial protein synthesis (MPS), ruminal and blood variables, and antioxidant power in 40 fattening male Gray Shirazi lambs (BW of 33.2 ± 1.1 kg) over 81 days in a completely randomized design (10 animals/diet).

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Introduction: The effects of Sodium-glucose cotransporter-2 (SGLT-2) inhibitors on cardiac outcomes, cardiovascular mortality (CVM), and all-cause mortality (ACM) in type 2 diabetes mellitus (T2DM) patients have been reported heterogeneously in different studies.

Methods: PubMed, Scopus, Embase, Cochrane Library, and Scholar databases were searched with relevant MeSH terms from January 1, 2010, to November 14, 2023. The study used Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.

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Background And Aim: A healthy diet has been recommended for non-alcoholic fatty liver disease (NAFLD). We aim to investigate the associations of diet quality indices with the risk of developingmetabolic-associated fatty liver disease (MAFLD).

Methods: We conducted this nested case-control study by recruiting 968 cases with MAFLD and 964 controls from the participants of the baseline phase of the Sabzevar Persian Cohort Study (SPCS).

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Digital technologies can help support the health of migrants and refugees and facilitate research on their health issues. However, ethical concerns include security and confidentiality of information; informed consent; how to engage migrants in designing, implementing and researching digital tools; inequitable access to mobile devices and the internet; and access to health services for early intervention and follow-up. Digital technical solutions do not necessarily overcome problems that are political, social, or economic.

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Tumor necrosis factor-alpha (TNF-α) inhibitors are commonly used for management of various autoimmune disorders but can rarely cause isolated cutaneous lupus. This report presents two cases of cutaneous lupus erythematosus (LE) in women aged 38 and 61 after adalimumab treatment for psoriasis highlighting the importance of recognizing these paradoxical reactions for timely management.

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The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus is the causative agent of the emerging zoonotic respiratory disease. One of the most important prerequisites for combating emerging diseases is the development of vaccines within a short period of time. In this study, antigen-irradiated, inactivated SARS-CoV-2 viruses and the disaccharide trehalose were used to enhance immune responses in the Syrian hamster.

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Accurate measurement tools are essential for evaluating the health-related quality of life in older adults. We aimed to translate and evaluate the psychometric properties of the Sickness Impact Profile-30 (SIP-30) in community-dwelling older adults. One hundred and fifty older adults participated in this study.

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Background: The development of heat transfer devices used for heat conversion and recovery in several industrial and residential applications has long focused on improving heat transfer between two parallel plates. Numerous articles have examined the relevance of enhancing thermal performance for the system's performance and economics. Heat transport is improved by increasing the Reynolds number as the turbulent effects grow.

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The role of MgO nanoparticles on the corrosion resistance of hot-dip Al-Zn coating.

Heliyon

January 2025

Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Ave., P.O. Box 15875-4413, Tehran, Iran.

This study investigates the impact of MgO nanoparticles (0, 0.1, 0.5, and 1 wt%) on the corrosion behavior of hot-dipped galvalume (Zn-55Al-1.

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This study aimed to estimate the quantity and trends of salt intake from industrial fermented dairy products, develop strategies to reduce salt content, and inform policymakers on promoting public health through healthier dairy options. A cross-sectional study was conducted on fermented dairy products. Seventy-nine random samples were selected, and the salt (NaCl %) content was determined by potentiometric titration after sample preparation and homogenization; also samples were analyzed for their moisture (oven drying method).

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To analyze patients' quality of life (QOL) after laser vision correction (LVC) from a worldwide literature review. Studies of prospective or cross-sectional design which evaluated QOL in patients after LVC and compared that to preoperative values or a matched group of emmetropes were included. The Web of Science, PubMed, Scopus, and ProQuest were searched for relevant articles published until February 2024.

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Accurate prediction of chlorophyll- (Chl-) concentrations, a key indicator of eutrophication, is essential for the sustainable management of lake ecosystems. This study evaluated the performance of Kolmogorov-Arnold Networks (KANs) along with three neural network models (MLP-NN, LSTM, and GRU) and three traditional machine learning tools (RF, SVR, and GPR) for predicting time-series Chl- concentrations in large lakes. Monthly remote-sensed Chl- data derived from Aqua-MODIS spanning September 2002 to April 2024 were used.

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In this study, a new hybrid nanoparticle composed of magnesium hydroxide and copper oxide (Mg(OH)/CuO) with an optimized ratio of magnesium (Mg) to copper (Cu) was designed and incorporated into a 3D-printed scaffold made of polycaprolactone (PCL) and gelatin. These hybrid nanostructures (MCNs) were prepared using a green, solvent-free method. Their topography, surface morphology, and structural properties were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS).

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Health risk assessment and determination of bisphenol A and aflatoxin M1 in infant formula.

BMC Nutr

January 2025

Department of Environmental Health Engineering, Division of Food Safety and Hygiene, School of public health, Tehran University of Medical Sciences, Tehran, Iran.

Background: Bisphenol A (BPA) is one of the chemical compounds used in food packaging, so it can migrate from the packaging into food. Also, environmental pollution of this compound is high due to its high use. Therefore, it may enter food chains through the environment.

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Background: Cultural competence, professional values, and spiritual well-being are among the topics that are widely considered today in response to turbulent and complex environments in organizations. The purpose of this study was to investigate the relationship between cultural competence, professional values, and spiritual well-being of nursing interns.

Methods: In this study, a total of 200 nursing interns affiliated with universities of medical sciences in Tehran city (Tehran, Shahid Beheshti, and Iran) were included as participants.

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Introduction: Organ transplant recipients face a substantial risk of developing posttransplant lymphoproliferative disorders (PTLD). In over 90% of cases with B-cell PTLD following solid organ transplantation, the Epstein-Barr virus (EBV) genome is promptly identified, usually within the initial year. A continuing discussion revolves around the efficacy of antiviral prophylaxis in mitigating the incidence of PTLD in solid organ transplant (SOT) patients.

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Background: Urbanization is expanding in Iran, leading to the emergence of three distinct socio-geographical areas: urban, rural, and suburban areas. These different areas may exhibit significant variations in dietary patterns. This study investigates the association between people's place of residence and their consumption of different food groups.

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Background: Parents of children born with cleft lip/palate encounter numerous challenges. This study aims to provide a deeper understanding for authorities to better support these parents by exploring the views and experiences of Iranian parents raising babies with cleft lip/palate through qualitative research.

Methods: This qualitative study collected data through face-to-face, in-depth, semi-structured interviews.

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Background: Complete Cytoreduction (CC) in ovarian cancer (OC) has been associated with better outcomes. Outcomes after CC have a multifactorial and interrelated cause that may not be predictable by conventional statistical methods. Artificial intelligence (AI) may be more accurate in predicting outcomes.

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Background: Cholangiocarcinoma (CCA) is a type of cancer that develops in the biliary tract. CCA accounts for 10% of primary hepatic cancers and is characterized by its aggressive nature and poor prognosis. This systematic review and meta-analysis aims to assess the prognostic value of the novel hepatic function assessment measure known as albumin-bilirubin (ALBI) grade in patients with CCA.

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Purpose: We aim to perform radiogenomic profiling of breast cancer tumors using dynamic contrast magnetic resonance imaging (MRI) for the estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) genes.

Methods: The dataset used in the current study consists of imaging data of 922 biopsy-confirmed invasive breast cancer patients with ER, PR, and HER2 gene mutation status. Breast MR images, including a T1-weighted pre-contrast sequence and three post-contrast sequences, were enrolled for analysis.

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Awake craniotomy (AC) facilitates real-time brain mapping, maximizing tumor resection while preserving critical neurological functions. This study systematically reviews the efficacy of several anesthetic protocols under Monitored Anesthesia Care (MAC) during AC, focusing on clinical outcomes. A systematic review and meta-analysis were conducted using data from observational studies and randomized trials involving AC under MAC.

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Deep brain stimulation of the anterior cingulate cortex reduces opioid addiction in preclinical studies.

Sci Rep

January 2025

Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, No. 38, Italia Ave., Ghods St, Keshavarz Boulevard, Tehran, Iran.

Substance Use Disorder (SUD) is a medical condition where an individual compulsively misuses drugs or alcohol despite knowing the negative consequences. The anterior cingulate cortex (ACC) has been implicated in various types of SUDs, including nicotine, heroin, and alcohol use disorders. Our research aimed to investigate the effects of deep brain stimulation (DBS) in the ACC as a potential therapeutic approach for morphine use disorder.

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