2,381 results match your criteria: "Tehran University of Medical Science.[Affiliation]"

Background: This study aimed to evaluate the impact of photodynamic therapy (PDT) using two photosensitizers, methylene blue and indocyanine green, on the microtensile bond strength of a universal adhesive to caries-affected dentin.

Methods: The occlusal enamel of 60 third molars was cut to expose the inner one-third of the dentin. Artificial caries were induced through a pH cycling process.

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HA antigenic variation and phylogenetic analysis of influenza B virus in Shiraz, Iran.

Acta Trop

September 2024

Department of Bacteriology & Virology, Shiraz Medical School, Shiraz University of medical Sciences, Shiraz, Iran. Electronic address:

Article Synopsis
  • Influenza B is a contagious respiratory illness with significant health impacts, particularly influenced by the Victoria and Yamagata lineages, leading to vaccine mismatches and increased mortality.
  • A study conducted in Shiraz, Iran from October 2017 to January 2018 tested 235 individuals under 15 with flu-like symptoms, finding a 9.7% positivity rate for influenza B, predominantly manifesting as rhinorrhea and myalgia.
  • Results revealed that the majority of the influenza B viruses belonged to the Yamagata lineage, necessitating enhanced vaccine coverage and continuous monitoring of viral mutations to improve vaccine effectiveness.
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Introduction: Subperiosteal hematoma (SPH) is a rare complication of neurofibromatosis type 1 (NF-1) which can be presented spontaneously or after a minor trauma a painful or painless growing lesion.

Presentation Of Case: Here, we presented a 10-year-old boy, a known case of NF-1, who presented with a painless growing leg lesion. The bony wall cystic lesion was suggested based on radiologic and pathologic investigation.

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Background And Aims: The aim of this study is to evaluate the association of coronary computed tomography angiography derived (CCTA) plaque characteristics and the left anterior descending coronary artery (LAD) and left circumflex coronary artery (LCX) bifurcation angle with severity of coronary artery disease (CAD).

Methods: All the stable patients with suspected CAD who underwent CCTA between January to December 2021 were included. Correlation between CCTA-derived aggregated plaque volume (APV), LAD-LCX angle, remodeling index (RI), coronary calcium score with Gensini score in conventional angiography were assessed.

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Aim: The aim of this study was to evaluate the short-term and long-term effects of routine repetitive transcranial magnetic stimulation (rTMS) on the sleep duration, depressive symptoms, and quality of life of patients with treatment-resistant depression (TRD).

Methods: In this prospective cohort study, 25 participants with TRD were assessed using the Insomnia Severity Index (ISI) and four sleep duration components of the Pittsburgh Sleep Quality Index (PSQI). Depression severity was measured with Hamilton's Depression Rating Scale (HDRS) and Beck's Depression Inventory (BDI-II), and patient-perceived quality of life with the 36-Item Short-Form Survey (SF-36).

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The occurrence of rectosigmoid junction inflammatory myofibroblastic tumor (IMT) is uncommon in children. This is a rare form of mesenchymal tumor, belonging to the category of soft tissue tumors, and can be found at any anatomical site from the central nervous system to the gastrointestinal tract. Our patient was a 10-year-old male subject complaining of lack of defecation and constipation.

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Objective: The concept of caring stress and its specific management has received less attention than other dimensions of stress in nurses. Therefore, to clarify the concept of caring stress, a scoping review study was designed. This scoping review aimed to investigate the concept of caring stress among clinical nurses and examine the strategies used for its management.

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Fetal hemolysis is caused by maternal antibodies that cross the placenta. Anti-M antibodies can rarely cause severe forms of alloimmunization in the fetus and newborn. We present a case of severe anti-M alloimmunization requiring a total of 8 intrauterine transfusions, in a patient with a prior poor obstetrical history.

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Objective: Osteocalcin (OCN) influences spermatogenesis in conjunction with testosterone and estrogen. OCN facilitates the secretion of testosterone by engaging with G protein-coupled receptor class C group 6 member A (GPRC6A) on Leydig cells and with androgen receptors on Sertoli cells.

Methods: Adult mice were assigned to the following groups: control; sham I, which received dimethyl sulfoxide for 5 weeks followed by phosphate-buffered saline for 1 month; azoospermia, which was treated with busulfan (40 mg/kg); sham II, which consisted of azoospermic animals that received phosphate-buffered saline for 1 month beginning at the 5-week mark; and the experimental group, which included azoospermic mice treated with OCN (3 ng/g/day) for 1 month.

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Background: Several studies have evaluated the effects of zinc supplementation on glycemic biomarkers in humans and have demonstrated varying results. We systematically evaluated the literature and performed an umbrella meta-analysis of the effects of zinc supplementation on type 2 diabetes biomarkers.

Methods: A comprehensive literature search was conducted in the following databases; PubMed, Embase, Embase, Cochrane Library, Scopus, and Web of Science for studies published up to March 10, 2024.

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The visualization of black pigment during EBUS-TBNA suggests a relapse of melanoma. This case highlights the value of EBUS-TBNA in diagnosing metastatic melanoma, particularly when the macroscopic appearance of the aspirate suggests the diagnosis.

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Hepcidin is a crucial regulator of iron homeostasis with protective effects on liver fibrosis. Additionally, gut microbiota can also affect liver fibrosis and iron metabolism. Although the hepatoprotective potential of Akkermansia muciniphila and Faecalibacterium duncaniae, formerly known as F.

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Key Clinical Message: It is essential to consider non-tuberculosis mycobacterium in HIV-positive patients with fever, abdominal pain, weight loss, and splenomegaly.

Abstract: is an opportunistic slow-growing nontuberculous mycobacterium in patients with immunocompromised backgrounds, especially HIV-positive patients. In this study, we present two cases of infection in HIV-positive patients with a good clinical response to accurate treatment.

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Article Synopsis
  • Abdominal injuries are a major global health issue, often categorized into blunt and penetrating types, and this study focuses on their epidemiology and clinical characteristics using data from Iran's National Trauma Registry from 2016 to 2023.
  • Out of 532 patients studied, the majority (78.9%) had blunt injuries, predominantly affecting the spleen and liver, while penetrating injuries primarily involved the colon and small intestine.
  • Key findings include higher rates of ICU admissions and blood transfusions in blunt trauma cases compared to penetrating injuries, with significant predictors for ICU admission being Injury Severity Score (ISS) and the type of management (NOM vs. OM).
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Introduction: The introduction of targeted therapy and immunotherapy has tremendously changed the clinical outcomes and prognosis of cancer patients. Despite innovative pharmacological therapies and improved radiotherapy (RT) techniques, patients continue to suffer from side effects, of which oral mucositis (OM) is still the most impactful, especially for quality of life.

Areas Covered: We provide an overview of current advances in cancer pharmacotherapy and RT, in relation to their potential to cause OM, and of the less explored and more recent literature reports related to the best management of OM.

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The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the highly contagious respiratory disease Corona Virus Disease 2019 (COVID-19) that may lead to various neurological and psychological disorders that can be acute, lasting days to weeks or months and possibly longer. The latter is known as long-COVID or more recently post-acute sequelae of COVID (PASC). During acute COVID-19 infection, a strong inflammatory response, known as the cytokine storm, occurs in some patients.

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Objectives: Considering the role of T helper (Th)17 cells in the pathogenesis of ankylosing spondylitis (AS), the aim of this study was to determine the correlation between aryl hydrocarbon receptor (AHR) gene expression and the expression of Th17-related genes including interleukin (IL)-17 and RAR-related orphan receptor gamma t (RORγt) transcription factor.

Patients And Methods: Thirty patients with AS (26 males, 4 females; mean age: 36.1±8.

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Lung cancer (LC) is one of the leading causes of cancer-caused death that possesses a poor prognosis and low survival rate worldwide. In general, LC is classified into small-cell (SCLC) and non-small-cell carcinoma (NSCLC) (involving 80% of patients). Although chemotherapy, radiotherapy, surgery, and molecular-targeted therapy are considered standard approaches for LC treatment, these options have low success with detrimental effects on the life quality of patients.

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The ABO blood group antigens in patients with oral lichenoid reaction.

Arch Dermatol Res

May 2024

Department of Oral & Maxillofacial Medicine, School of Dentistry, Tehran University of Medical Science, Tehran, Iran.

Evaluating the association of ABO blood group with different delayed hypersensitivity reactions, such as oral lichenoid reaction (OLR), can provide a new perspective for clinical practice. Therefore, this study designed to investigate ABO blood group antigens in OLR patients. In this case-control study, the ABO blood group of 112 OLR patients and 117 individuals without oral lesions were included.

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This study aimed to vividly describe the direct and severe health impacts of conflict in the Eastern Mediterranean Region (EMR) using data from the Global Burden of Disease (GBD). It also sought to quantify the staggering portion of economic damage attributable to the health burden of conflict and terrorism. From 1990 to 2019, the region endured the devastating effects of conflict and terrorism.

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Thinking With a growing body of brain science, the research and technological interventions in neuroscience have led to the rise of some ethical, moral, legal, conceptual, and socioeconomic problems. These problems and the need to establish an intellectual framework to approach them framed the base of Neuroethics. Most conveniently, the normative definition of Neuroethics is declared as ethics of neuroscience and neuroscience of ethics.

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Background: Developmental dysplasia of the hip (DDH) is one of the principal causes of secondary hip osteoarthritis, giving rise to considerable pain, impaired mobility, and a reduced quality of life. The optimal approach to managing individuals who have Crowe type IV DDH remains controversial. This study aimed to review the existing literature on the application of total hip arthroplasty (THA) as a treatment modality for Crowe type IV DDH, assessing its efficacy in addressing this severe hip deformity.

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Background: There is a lack of enough evidence regarding the epidemiology of Young-onset Parkinson's disease (YOPD) which is needed by clinicians and healthcare policymakers.

Aim: Herein, in this systematic review and meta-analysis, we aimed to estimate the global prevalence and incidence rates of YOPD.

Methods: We searched the literature in PubMed, Scopus, and Web of Science in May 2022.

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Background: Some pathological changes occur in patients with Alzheimer's disease (AD) prior to the onset of clinical symptoms.

Objective: In the present study, we aimed to investigate the potential of event-related potential (ERP) components in error processing performance as a neuromarker of mild cognitive impairment (MCI) and transition to AD and their relation with cognitive functions.

Methods: We conducted an evaluation of 16 patients diagnosed with AD, 16 patients with MCI, and 15 normal controls using three subtests from the Cambridge Neuropsychological Testing Automated Battery (CANTAB).

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