Publications by authors named "Amir Amiri Sadeghan"

Objective: The nitric-oxide pathway plays a crucial role in the pathogeneses of asthma and -encoded endothelial nitric oxide synthase is one of the main components of the pathway. Variants of are known to contribute to asthma development and pathophysiology.

Methods: We investigated the association of -c.

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The nitric oxide (NO) pathway contributes to the pathogeneses of metabolic syndrome (MetS) and asthma. encodes inducible-NO synthase, which is an important enzyme of the pathway, and its variations could affect the risk of asthma and MetS and thereby co-susceptibility to them. This study aims to estimate the association of -c.

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Mushrooms in the genus Ganoderma have been collected and used as medicine since ancient times. However, commercial basidiome production has only recently been achieved. The solid substrates for basidiome production usually consist of lignocellulosic materials as the major component and the supplements (e.

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The photo-physical properties of metal nano clusters are sensitive to their surrounding medium. Fluorescence enhancement, quenching, and changes in the emitted photon properties are usual events in the sensing applications using these nano materials. Combining this sensitivity with unique properties of self-assembled structures opens new opportunities for sensing applications.

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The health effects of ambient air particulate matter with a diameter of ≤2.5 μm (PM) on the central nervous system are well known and the induced oxidative stress has been shown as their main neuropathologic outcome. Ambient air PM sampling methods mostly use air sampler systems that collect PM on filters, which is followed by a PM extraction approach.

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Objectives: We investigated whether -c.894G>T transversion (rs1799983), which causes the substitution of glutamate with aspartate (E298D) in the oxygenase domain of endothelial nitric oxide synthase (eNOS), is associated with susceptibility to metabolic syndrome (MetS) risk in Iranian-Azerbaijanis.

Materials And Methods: The frequencies of the alleles and genotypes were compared in the 300 cases and 300 controls using PCR-RFLP assay.

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Long non-coding RNAs (lncRNA) have been emerged as a novel class of molecular regulators in cancer. They are dysregulated in many types of cancer; however, there is not enough knowledge available on their expression and functional profiles. Lung cancer is the leading cause of the cancer deaths worldwide.

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Different bioinformatic methods apply various approaches to predict how much the effect of a SNP could be deleterious and therefore their results may differ significantly. However, variation studies often need to consider an integrated prediction result to analyze the effect of SNPs. To address this problem, we used an algorithm to map ordinal predictions to a numeral space and averaging them, and based on it we developed the ISNPranker web-tool (http://isnpranker.

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The published version of this article, unfortunately, contains error in the affiliation. The authors express their sincere apology and corrected the affiliations in this article.

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Methylation of DNA at carbon 5 of cytosines is the most common epigenetic modification of human genome. Due to its critical role in many normal cell processes such as growth and development, any aberrant methylation pattern in a particular locus may lead to abnormal functions and diseases such as cancer. Development of methods to detect methylation state of DNA which may eliminate labor-intensive chemical or enzymatic treatments has received considerable attention in recent years.

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A DNA-silver nanocluster with two distinct emissions is devised, in which this unique modality has been exploited to develop a novel nanosensor for transgenic DNA detection. TEM and fluorescence analysis revealed the formation of Ag nanoclusters with a size of around 2 nm, which exhibit dual-emissions at 550 nm (green) and 630 nm (red). Moreover, in the presence of the target sequence (CaMV 35S promoter) from the transgenic plant, the nanoclusters showed an enhancement in the green emission and a reduction in the red emission.

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Protein misfolding and aggregation into amyloid structures is linked with a number of pathophysiological disorders. In the past decade, significant progresses have been made in the drug discovery strategies against toxic aggregates. Although lack of specificity and high sensitivity for in vitro screening system still seen.

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The extent of DNA structural perturbation by silver ions is different in methylated and non-methylated DNA. Here, we explored the interaction of eight convenient DNA interacting molecules with methylated and non-methylated short GC rich oligonucleotides in the presence and absence of silver ions. Acridine orange, DAPI, Doxorubicin, Ethidium bromide, Hoechst 33342, Methylene blue, PicoGreen, and Propidium iodide are tested for their ability to distinguish methylated and non-methylated DNA.

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Article Synopsis
  • The study introduces a method for detecting DNA methylation using silver nanoclusters (AgNCs), which shows increased fluorescence for methylated DNA sequences associated with colorectal cancer.
  • It focuses on the Sept9 promoter region, where a specially designed probe DNA enhances AgNC formation when hybridized with methylated target sequences, leading to measurable fluorescence changes.
  • Results highlight that the fluorescence intensity is significantly higher for methylated targets compared to non-methylated ones, and the method is highly specific to target sequences, revealing a sequence-dependent behavior of the DNA with silver ions.
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