Publications by authors named "Abdulrazagh Hashemi Shahraki"

Sarcoidosis is a granulomatous disease affecting multiple organ systems and poses a diagnostic challenge due to its diverse clinical manifestations and absence of specific diagnostic tests. Currently, blood biomarkers such as ACE, sIL-2R, CD163, CCL18, serum amyloid A, and CRP are employed to aid in the diagnosis and monitoring of sarcoidosis. Metabolomics holds promise for identifying highly sensitive and specific biomarkers.

View Article and Find Full Text PDF

Proteases as one of the most significant categories of commercial enzymes, serve nowadays as the key ingredients in detergent formulations. Therefore, identifying detergent-compatible proteases with better properties is a continuous exercise. Accordingly, we were interested in the recombinant production and characterization of protease 3075 as a novel enzyme from thermophilic indigenous Cohnella sp.

View Article and Find Full Text PDF

Background: Chronic wound infections caused by Enterococcus faecalis pose formidable challenges in clinical management, exacerbated by the emergence of vancomycin-resistant strains. Phage therapy offers a targeted approach but encounters delivery hurdles. Due to their biocompatibility and controlled release properties, hydrogels hold promise as carriers.

View Article and Find Full Text PDF

Lower respiratory tract infections (LRTIs) present a significant global health burden, exacerbated by the rise in antimicrobial resistance (AMR). The persistence and evolution of multidrug-resistant bacteria intensifies the urgency for alternative treatments. This review explores bacteriophage (phage) therapy as an innovative solution to combat bacterial LRTIs.

View Article and Find Full Text PDF

Enterococcus faecalis, a Gram-positive bacterium, poses a significant clinical challenge owing to its intrinsic resistance to a broad spectrum of antibiotics, warranting urgent exploration of innovative therapeutic strategies. This study investigated the viability of phage therapy as an alternative intervention for antibiotic-resistant E. faecalis, with a specific emphasis on the comprehensive genomic analysis of bacteriophage SAM-E.

View Article and Find Full Text PDF
Article Synopsis
  • Two lytic phages, UF_RH7 and UF_RH9, have been sequenced for their genomes.
  • UF_RH7 has a genome length of 58,217 base pairs (bp) and encodes 82 proteins, while UF_RH9 has a genome length of 42,609 bp and encodes 55 proteins.
  • UF_RH7 is classified under a specific family, and UF_RH9 belongs to a different class.
View Article and Find Full Text PDF

Hospital readmission within 30 days poses challenges for healthcare providers, policymakers, and patients because of its impact on care quality, costs, and outcomes. Patients with interstitial lung disease (ILD) are particularly affected by readmission, which is associated with increased morbidity and mortality and reduced quality of life. Because small sample sizes have hindered previous studies, this study seeks to address this gap in knowledge by examining a large-scale dataset.

View Article and Find Full Text PDF

Here, we introduce UF_RH5, a novel lytic phage targeting clinically isolated Pseudomonas aeruginosa. It belongs to the morphology family, genus, with a 42,566-bp genome with a GC content of 53.60%, encoding 58 proteins.

View Article and Find Full Text PDF

Caffeic acid is one of the widely distributed phenolic compounds in nature and can be found in planet products. On the other hand, trypsin is a vital digestive enzyme in the intestine that plays an essential role in the immune response, blood coagulation, apoptosis and protein maturation like protein digestion. Several studies have revealed the inhibitory effects of the phenolic compound on the digestive enzyme.

View Article and Find Full Text PDF
Article Synopsis
  • * The research, conducted at three beaches in Ontario, Canada, showed that while spatial variation among sites was low, there was significant temporal variation, with high bacterial activity in summer and fall, and surprising activity in winter despite cold temperatures.
  • * The findings highlight that many bacterial genera remained inactive during winter, and flag potential health risks associated with certain active taxa, indicating a need for further research on how environmental changes affect these communities.
View Article and Find Full Text PDF

We report the genome sequence of a lytic phage named UF_RH6, which infects Pseudomonas aeruginosa. This phage was isolated from a respiratory secretion sample from a patient with pulmonary P. aeruginosa.

View Article and Find Full Text PDF

Mycobacterium fortuitum is a clinically important species among nontuberculous mycobacteria (NTM). Treatment of diseases caused by NTM is challenging. The aim of this study was identification of drug susceptibility and detection of mutations in erm(39) related to clarithromycin resistance and in rrl related to linezolid resistance in clinical isolates of M.

View Article and Find Full Text PDF

Here, we present the genome sequence of a novel Pseudomonas aeruginosa bacteriophage called UF_RH1. This lytic phage has a genome size of 42,567 bp and is classified as a member of the family and the genus. UF_RH1 shares genetic similarities with phage vB_SmaS-DLP_2.

View Article and Find Full Text PDF
Article Synopsis
  • * A study in Iran collected wastewater samples from hospitals and used specific phages to target and reduce harmful bacteria levels in the wastewater.
  • * The results showed that the phage cocktail significantly decreased bacterial counts by up to 99.9%, indicating its potential to enhance public health and water quality.
View Article and Find Full Text PDF

In this investigation, the effects of candidone on the structure and conformation of DNA were evaluated by spectroscopic methods, molecular dynamics simulation, and molecular docking studies. Fluorescence emission peaks, ultraviolet-visible spectra, and molecular docking exhibited the complex formation between candidone and DNA in a groove-binding mode. Fluorescence spectroscopy results also showed a static quenching mechanism of DNA in the presence of candidone.

View Article and Find Full Text PDF

Spermidine is an aliphatic polyamine that directs a set of biological processes. This work aimed to use UV-Vis spectroscopy, fluorescence spectroscopy, thermal stability, kinetic methods, docking, and molecular dynamic simulations to examine the influence of spermidine trihydrochloride (SP) on the structure and function of pepsin. The results of the fluorescence emission spectra indicated that spermidine could quench pepsin's intrinsic emission in a static quenching process, resulting in the formation of the pepsin-spermidine complex.

View Article and Find Full Text PDF

The interaction between caffeic acid (CA) and pepsin was investigated using multi-spectroscopy approaches and molecular dynamic simulations (MDS). The effects of CA on the structure, stability, and activity of pepsin were studied. Fluorescence emission spectra and UV-vis absorption peaks all represented the static quenching mechanism of pepsin by CA.

View Article and Find Full Text PDF

The ability of a therapeutic compound to bind to proteins is critical for characterizing its therapeutic impacts. We have selected quercetin (Qu), a most common flavonoid found in plants and vegetables among therapeutic molecules that are known to have anti-inflammatory, antioxidant, anti-genotoxic, and anti-cancer effects. The current study aimed to see how quercetin interacts with pepsin in an aqueous environment under physiological conditions.

View Article and Find Full Text PDF

Background: Plant growth and development are severely affected by soil salinity. This study was carried out to evaluate the interaction of foliar application of antioxidants (β-carotene and gallic acid) and salt stress on Lepidium sativum seedlings.

Results: Our findings revealed that total dry and fresh weight were adversely affected by 25 mM NaCl salinity stress.

View Article and Find Full Text PDF

Background: Present study attempts to investigate health-related quality of life (HRQoL) and its relation with knowledge, attitudes, and practices (KAP) of students of Tehran University of Medical Sciences (TUMS) during this pandemic.

Materials And Methods: In this cross-sectional study which was conducted between 23 may to 21 June 2020, 470 students in different levels of TUMS were included to the study randomly. participants completed validate, designed online questionnaire which assessed KAP towards coronavirus disease 2019 (COVID-19) and HRQoL.

View Article and Find Full Text PDF

Although COVID-19 emerged as a major concern to public health around the world, no licensed medication has been found as of yet to efficiently stop the virus spread and treat the infection. The SARS-CoV-2 entry into the host cell is driven by the direct interaction of the S1 domain with the ACE-2 receptor followed by conformational changes in the S2 domain, as a result of which fusion peptide is inserted into the target cell membrane, and the fusion process is mediated by the specific interactions between the heptad repeats 1 and 2 (HR1 and HR2) that form the six-helical bundle. Since blocking this interaction between HRs stops virus fusion and prevents its subsequent replication, the HRs inhibitors can be used as anti-COVID drugs.

View Article and Find Full Text PDF

Different groups of synthetic dyes might lead to environmental pollution. The binding affinity among hazardous materials with biomolecules necessitates a detailed understanding of their binding properties. Malachite Green might induce a change in the iron transfer by Apo-transferrin.

View Article and Find Full Text PDF
Article Synopsis
  • GHRH stimulates growth hormone release, which is important for immune cell growth, but the effects of its antagonist in granulomatous diseases are unclear.
  • Research showed expression of GHRH receptors in sarcoidosis tissue and demonstrated that the antagonist MIA602 reduces inflammatory markers in different granuloma models.
  • Results suggest MIA602 may be a promising treatment for sarcoidosis by targeting GHRH receptors, showing anti-inflammatory effects without inducing cell death.
View Article and Find Full Text PDF
Article Synopsis
  • Limited understanding exists regarding how new SARS-CoV-2 variants forecast in North America and their interactions with vaccine-induced antibodies.
  • The study utilized computational modeling to predict how variants like B.1.1.7, B.1.351, B.1.617, and P.1 interact with human antibodies and receptors, revealing varying levels of affinity that affect their prevalence.
  • Results indicate that while B.1.1.7 is rapidly growing, herd immunity may control other variants; however, the emergence of these variants suggests a need for booster shots to enhance immunity against those with lower affinity scores.*
View Article and Find Full Text PDF

Members of complex are known for causing severe, chronic infections. Members of are a new "antibiotic nightmare" as one of the most resistant organisms to chemotherapeutic agents. Treatment of these infections is challenging due to the either intrinsic or acquired resistance of the complex to the available antibiotics.

View Article and Find Full Text PDF