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From adhesion to gene regulation: tea tree essential oil suppresses Uropathogenic Escherichia coli colonization while triggering csgA-mediated biofilm stress paradox
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Background and objectives Uropathogenic E.coli (UPEC) are major causative agents of urinary tract infection (UTIs), they often possess strong biofilm-forming abilities, and capable of resisting many antibiotics, making catheter associated UTIs (CAUTIs) difficult to treat. Essential oils such as tea tree oil (TTO) have emerged as natural alternatives to antibiotics. This study aimed to evaluate the antibacterial, adhesion, and biofilm-forming efficacy of TTO against UPEC, while analyzing its effect on the gene expression of csgA gene and determining its cytotoxicity. Methods Four UPEC isolates collected from different UTIs patients from Baghdad Province. The Antibacterial activity of TTO evaluated using agar wells diffusion assay and micro dilution using resazurin. Anti-adhesion and anti-biofilm were assessed using silicon Foley catheters. The csgA encode to curli fibers determined using polymerase chain reaction (PCR) and gene expression measured using qPCR. Cytotoxicity of TTO measured against renal carcinoma (A498) and normal fibroblast (HdFn) cell lines via MTT assay. Results TTO inhibited UPEC with inhibition zone diameter of 12–25 mm (p < 0.0001) and MIC value was 0.25%. In Foley catheter model, the concentrated TTO reduced adhesion and biofilm formation (p < 0.0001). csgA harbored within all subjected isolates. Real time quantitative PCR (RT-qPCR) revealed significant (p < 0.0001) upregulation within susceptible isolates (2.2) fold change. Cytotoxicity via MTT assay reveled selective activity of TTO on (A498, IC50= 265.8 µg/mL) over (HdFn, IC50 = 852.5 µg/mL; p < 0.0001). Conclusion TTO demonstrated potential antibacterial, anti-adhesion and anti-biofilm activity against UPEC along with modulations of csgA gene expression and selective cytotoxicity

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Publication Date
Thu Sep 04 2025
Journal Name
The Open Dentistry Journal
Clinical and Salivary Antioxidant Effects of Matcha Tea in Patients with Gingivitis: A Randomized Controlled Trial
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Introduction

Gingivitis, the initial stage of periodontal disease, is characterised by inflammation driven by dental biofilm and associated with oxidative stress. Matcha tea, a powdered green tea rich in antioxidants, has shown potential health benefits. This study aimed to investigate the effect of Matcha tea consumption on clinical periodontal parameters and salivary antioxidant levels in patients with gingivitis.

Methods

A randomised controlled clinical trial was conducted with 41 participants diagnosed with gingivitis.

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Publication Date
Tue Jan 11 2022
Journal Name
Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
Permeability Enhancement of Methotrexate Transdermal Gel using Eucalyptus oil, Peppermint Oil and Olive Oil(Conference Paper )#
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Abstract

Objective: the idea of this study to improve transdermal permeability of Methotrexate using eucalyptus oil, olive oil and peppermint oil as enhancers.
Method: eucalyptus oil (2% and 4%), peppermint oil (2% and 4%) and olive oil (2% and 4%) all used as natural enhancers to develop transdermal permeability of Methotrexate via gel formulation. The gel was subjected to many physiochemical properties tests. In-vitro release and permeability studies for the drug were done by Franz cell diffusion across synthetic membrane, kinetic model was studied via korsmeyer- peppas equation.
Result: the results demonstrate that safe, nonirritant or cause necrosis to rats' skin and stable till 60 days gel was successfully formulated.<

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Publication Date
Wed Sep 30 2009
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Risk Assessment Due to Population Exposure to Lead Particles Emitted from Domestic Electrical Generators
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Portable and stationary electrical generators became quite popular in Iraq soon after the shortage in national electrical
energy after 2003. Multi step risk assessment process is used in this study in the assessment of risks caused by
contamination of indoor air by lead particles emitted from domestic electrical generators. Two portable electrical
generators are tested under controlled indoor conditions (Radial LG (0.9 keV) fueled with benzene and oil and TigMax
(3 keV), fueled with benzene only). Lead particles in air were sampled by using portable dust sampler (Sniffer, L-30).
The atmospheric particulate sampling process is carried out in a flat located in the first floor of a three stories building
located in Baghdad

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Publication Date
Sun Mar 03 2013
Journal Name
Baghdad Science Journal
Comparative study of oxidative stress in diabetes mellitus
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The aim of the study was comparative between oxidative stress in diabetes mellitus using the measurement of some biophysical and biochemical parameters on two groups of diabetic patients, were conducted in the Al-Yarmuk Teaching Hospital,30 patients insulin dependent diabetes mellitus (IDDM) or type 1 ,their ages ranged between (15-45) and30 patients non- insulin dependent diabetes mellitus (NIDDM) or type 2,their ages ranged between (42-65).This study has been compared with 30 healthy subjects. The present study was demonstrated to evaluate the alteration in oxidative stress as measured by plasma and red blood cells Malondialdehyde (MDA) andchanges in antioxidant mechanism as measured by plasma and red blood cells Glutathione (GSH)

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Publication Date
Sun Oct 01 2023
Journal Name
History Of Medicine
Correlation of Afamin with oxidative stress in GDM
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It is becoming a public health issue to predict which expectant women will develop gestational diabetes mellitus (GDM). The goal of this case control research is to investigate the role of maternal oxidative stress levels in the first, second, and third trimesters, as well as other factors, in the development of gestational diabetes mellitus (GDM). Methods Between October and December 2021, 142 women participated in this research. The 101 GDM patients were split into three groups based on their gestation (T1, T2, and T3), and 41 healthy pregnant women were chosen as the comparison group. TAS and TOS levels of oxidative stress and XO were calculated using a Spectrophotometer for colorimetric techniques; fasting and random sugar levels, as

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Publication Date
Thu Jun 18 2020
Journal Name
Rimak International Journal Of Humanities And Social Sciences
STRESS IN ENGLISH AND ARABIC: A CONTRASTIVE STUDY
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DBN Rashid, Rimak International Journal of Humanities and Social Sciences, 2020

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Publication Date
Wed Apr 01 2020
Journal Name
Plant Archives
Reducing water stress on apricot saplings cv. Zanjelly
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Publication Date
Sun Apr 02 2017
Journal Name
Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
The Role of Oxidative Stress In Lead Poisoning
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To investigate the relationship between increased lipid peroxidation, and the lowering of both plasma total proteins and albumin in lead-exposed workers, and the effectiveness of antioxidants (vit. C and E) in modulating oxidative stress in those workers.

Thirty male and females workers employed in the Iraqi storage battery (age range 20-40 years) were participating in this study. Additionally, 11 healthy subjects were served as healthy controls, with the same age range compared to workers group, to avoid the effects of age variations on the studied parameters. Blood lead levels, erythrocytes and plasma MDA, erythrocytes and plasma GSH, total protein and albumin levels in healthy controls and lead-exposed workers pre- and post-tr

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Publication Date
Mon Feb 28 2022
Journal Name
Journal Of Educational And Psychological Researches
Occupational Stress among Doctors Work in Governmental Hospitals
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The current research aims to identify the occupational stresses of doctors who are working in governmental hospitals according to the variables of gender and career ranking. The researcher adopted a scale to measure the occupational stress of (1088) doctors (561 males and 527 females) working in governmental hospitals. The results have shown that doctors have a high level of professional stress, but there is no significant difference between doctors in terms of gender. However, there were significant differences in favor of novice residents.

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Publication Date
Sat Dec 25 2021
Journal Name
Diyala Journal Of Medicine
Oxidative Stress in Multiple Sclerosis Disease (Review Article)
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Background: Multiple sclerosis (MS) is an inflammatory disease of the central nervous system, in which the myelin sheaths got injured. The prevalence of MS is on grow, as well as, it affects the young ages. Females are most common to have MS compared to males. Oxidative stress is the situation of imbalance between oxidants (free radicals and reactive oxygen species (ROS)) and antioxidants in a living system, in which either the oxidants are elevated or antioxidants are reduced, or sometimes both. ROS and oxidative stress have been implicated in the progression of many degenerative diseases, which is important in cracking the unrevealed mysteries of MS. In this review article, some of the proposed mechanisms that link oxidative stres

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