Publications by authors named "Bahrami S"

Background: Hymenoptera venom allergy is a potentially severe allergic reaction in the general population. The only preventative approach in these cases is venom immunotherapy (VIT), which follows different protocols. The recommended initial dose is 0.

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Purpose: The current study aimed to investigate the trophocidal and cysticidal activities of cinnamaldehyde (Cinn), a natural compound with known antimicrobial properties, against environmental and reference strains of Acanthamoeba castellanii. Additionally, we explored the potential benefits of Cinn formulated as a nanoemulsion (Cinn-NE) in enhancing its efficacy.

Methods: Cinn-NE was prepared using the ultrasonic emulsification method.

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Objective: Spinal cord injury (SCI) is a severe and permanent nerve damage condition that poses significant burdens on individuals and society. Various therapeutic approaches have been explored to mitigate the consequences of SCI. Tissue engineering and regenerative medicine have emerged as a promising avenue for addressing this issue.

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While brainstem regions are central regulators of blood pressure, the neuronal mechanisms underlying their role in hypertension remain poorly understood. Here, we investigated the structural and genetic relationships between global and regional brainstem volumes and blood pressure. We used magnetic resonance imaging data from n = 32,666 UK Biobank participants, and assessed the association of volumes of the whole brainstem and its main regions with blood pressure.

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Purpose: Percutaneous ultrasound-guided renal biopsy is essential for diagnosing medical renal disorders in transplant kidneys. A variety of techniques have been advocated. The purpose of this study is to evaluate the safety and efficacy of two different coaxial techniques and biopsy devices.

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The observation that the risk of developing Alzheimer's disease is reduced in individuals with high premorbid cognitive functioning, higher educational attainment, and occupational status has led to the 'cognitive reserve' hypothesis. This hypothesis suggests that individuals with greater cognitive reserve can tolerate a more significant burden of neuropathological changes before the onset of cognitive decline. The underpinnings of cognitive reserve remain poorly understood, although a shared genetic basis between measures of cognitive reserve and Alzheimer's disease has been suggested.

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Bacteriocins, natural antimicrobial peptides produced by bacteria, present eco-friendly, non-toxic, and cost-effective alternatives to traditional chemical antimicrobial agents in the food industry. This review provides a comprehensive update on the classification of bacteriocins in food preservation. It highlights the significant industrial potential of pediocin-like and two-peptide bacteriocins, emphasizing chemical synthesis methods like Fmoc-SPPS to meet the demand for bioactive bacteriocins.

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Guar gum (GG), as a non-exudate gum, is extracted from the seed's embryos of Cyamopsis tetragonoloba (a member of Leguminosae family). Recently, this biopolymer has received extensive attention due to its low cost, notable properties, non-toxic biodegradation, ease of availability, and biocompatibility. However, disadvantages such as uncontrolled hydration rate and susceptibility to microbial attack have led many researchers to further modification of guar gum.

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Article Synopsis
  • Ulcerative colitis (UC) is a GI disorder known for chronic inflammation, and while existing treatments manage symptoms, they have limitations, prompting interest in herbal remedies like jujuba extract.
  • In this study involving 15 male BALB/c mice, researchers assessed the effects of jujuba extract against UC induced by acetic acid, comparing results to those treated with mesalamine.
  • The results indicated that jujuba extract significantly reduced several inflammation markers and the expression of related pro-inflammatory genes, suggesting its potential as an effective anti-inflammatory treatment for UC.
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Introduction: Ulcerative colitis (UC), a common gastrointestinal disorder in affluent nations, involves chronic intestinal mucosal inflammation. This research investigated the effects of combined probiotic treatment of (L. casei) and mesalazine on disease activity index and inflammatory factors in the UC model.

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  • Cognitive impairment is common in individuals with epilepsy, and this study explores the genetic links between different epilepsy subtypes and cognitive ability, revealing that genetic factors play a significant role.
  • Researchers analyzed data from 269,867 individuals regarding cognitive ability and 27,559 cases of common epilepsies, using various statistical tools to identify the genetic variants involved.
  • The findings indicate that cognitive ability has a much larger number of genetic variants compared to epilepsy types, and they identified 66 genetic loci shared between cognitive function and different epilepsy subtypes, suggesting important gene expressions in brain regions affected by both conditions.
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  • The basal ganglia are brain structures that play key roles in motor control, cognition, and emotion, and this study explored their genetic architecture through genome-wide association studies (GWAS) involving over 34,000 European participants.
  • The research identified 72 genetic loci linked to basal ganglia volumes, with 50 of these being new discoveries, and highlighted a significant genetic overlap with disorders like Parkinson's and Alzheimer's disease.
  • Findings suggest potential causal relationships where larger striatal volumes may contribute to Parkinson's disease risk, while certain genetic factors may influence the size of other basal ganglia components, advancing understanding of their implications in neurological conditions.
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Introduction: The accurate prediction of COVID-19 mortality risk, considering influencing factors, is crucial in guiding effective public policies to alleviate the strain on the healthcare system. As such, this study aimed to assess the efficacy of decision tree algorithms (CART, C5.0, and CHAID) in predicting COVID-19 mortality risk and compare their performance with that of the logistic model.

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Background: The lack of complete protection against leishmaniasis and the challenges of anti-leishmaniasis drug treatment have made the treatment process more difficult. This study aimed to develop a new strategy for preparing a vaccine against cutaneous leishmaniasis using some of the antigenic proteins of the parasite.

Methods: This study was carried out in 2022 at Shahid Chamran University of Ahvaz, Ahvaz, Iran.

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  • The study aimed to identify genetic factors linked to anxiety disorders and how they overlap with other psychiatric disorders, using a large sample from various studies.
  • Researchers found that anxiety has a complex genetic architecture involving around 12,900 genetic variants, with significant overlap with disorders like schizophrenia and major depression, among others.
  • The findings revealed 119 new genetic loci associated with anxiety, suggesting potential biological pathways for developing new treatments and explaining the frequent co-occurrence of anxiety with other psychiatric conditions.
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Along with a paradigm shift in looking at soft tissue fillers from space-filling to bioactive materials, decellularized extracellular matrix (DEM) fillers have gained more attention considering their superior bioactivity. However, the complex mechanisms that govern the interaction between host tissues and DEMs have been partially understood. This review first covers the mechanisms that determine immunogenicity, angiogenesis and vasculogenesis, and recellularization and remodeling after DEM implantation into host tissue, with a particular focus on related findings from filler materials.

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Machine learning (ML) tools for acute respiratory distress syndrome (ARDS) detection and prediction are increasingly used. Therefore, understanding risks and benefits of such algorithms is relevant at the bedside. ARDS is a complex and severe lung condition that can be challenging to define precisely due to its multifactorial nature.

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Anal fistula has been a challenging clinical issue for years due to its complex pathogenesis. The risk of frequent recurrence and incontinence complicates long-term treatment. Recent scientific literature has reviewed new techniques used for anal fistula treatment in recent years, assessing the advantages and disadvantages of each based on clinical outcomes.

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Key Clinical Message: Creutzfeldt-Jakob disease (CJD) is a rapidly progressive, fatal neurodegenerative disorder. This case highlights parkinsonism as a rare initial manifestation of sporadic CJD (sCJD), emphasizing the need for heightened clinical awareness to prevent misdiagnosis. Early and accurate diagnosis of sCJD is crucial for preventing potential iatrogenic transmission and optimizing patient management.

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Aim: The purpose of this investigation was to examine the potential association between non-alcoholic fatty liver disease (NAFLD) and adverse maternal and perinatal outcomes during pregnancy.

Background: Gaining insights into the effect of NAFLD on pregnancy outcomes is essential to ensure the health and well-being of mothers and infants.

Methods: This prospective cohort study was conducted at Imam Khomeini and Razi hospitals of Ahvaz City in 2022.

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The skin, which covers an area of 2 square meters of an adult human, accounts for about 15 % of the total body weight and is the body's largest organ. It protects internal organs from external physical, chemical, and biological attacks, prevents excess water loss from the body, and plays a role in thermoregulation. The skin is constantly exposed to various damages so that wounds can be acute or chronic.

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This study aimed to construct a nanofibrous wound dressing composed of polyvinyl alcohol (PVA) and chitosan (CS) containing curcumin and root extract to inhibit infection and accelerate wound healing. Loading 10 wt% of extract-curcumin (50:50) by electrospinng technique resulted in the formation of nanofibers (NFs) with diameter distribution 303 ± 38 and had a uniform and defect-free morphology. FTIR analysis confirmed the loading of the components without adverse interactions.

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While genome-wide association studies are increasingly successful in discovering genomic loci associated with complex human traits and disorders, the biological interpretation of these findings remains challenging. Here we developed the GSA-MiXeR analytical tool for gene set analysis (GSA), which fits a model for the heritability of individual genes, accounting for linkage disequilibrium across variants and allowing the quantification of partitioned heritability and fold enrichment for small gene sets. We validated the method using extensive simulations and sensitivity analyses.

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Background And Objectives: Epilepsies are associated with differences in cortical thickness (TH) and surface area (SA). However, the mechanisms underlying these relationships remain elusive. We investigated the extent to which these phenotypes share genetic influences.

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