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1.
Int J Biol Macromol ; 253(Pt 5): 127080, 2023 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-37802438

RESUMO

Medical devices are essential for patient care, but they can also serve as havens for dangerous microbes and the development of biofilm, which can lead to serious infections and higher death rates. To meet these issues, it is crucial to develop novel and effective antimicrobial coatings for medical devices. In this context, we have developed a new biofunctionalized nanosilver (ICS-Ag), employing itaconyl-chondroitin sulfate nanogel (ICSNG) as a synergistic reducing and stabilizing agent, to effectively eradicate microbial infections and biofilm formation. The antibacterial investigations showed that ICS-Ag nanocomposite is an intriguing antibiotic with excellent antibacterial indices (MIC/MBC (µg/mL): 2.29/4.58, 1.25/2.50, and 1.36/1.36 against S. aureus, E. coli, and P. aeruginosa, respectively), as well as antifungal capacity. Furthermore, ICS-Ag demonstrated efficacy superior to that of the antibiotic (ciprofloxacin, Cipro) against both Gram-positive and Gram-negative bacterial biofilms. TEM images of untreated and treated bacterial strains demonstrate synergistic actions that harm the bacterial cytomembrane, leading to the release of intracellular contents and bacterial death. Interestingly, ICS-Ag shows excellent biocompatibility, with an IC50 value (71.25 µg/mL) higher than MICs against tested microbes. Overall, the ICS-Ag film may provide multifunctional antimicrobial coatings for medical equipment to reduce microbial contamination and biofilm development.


Assuntos
Anti-Infecciosos , Nanopartículas Metálicas , Humanos , Prata/farmacologia , Sulfatos de Condroitina/farmacologia , Nanogéis , Escherichia coli , Staphylococcus aureus , Antibacterianos/farmacologia , Ciprofloxacina , Biofilmes , Testes de Sensibilidade Microbiana
2.
Front Med (Lausanne) ; 10: 1243014, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38486825

RESUMO

Background: Volunteering is a beneficial activity with a wide range of positive outcomes, from the individual to the communal level. In many ways, volunteering has a positive impact on the development of a volunteer's personality and experience. This study aimed to evaluate the impact of health volunteering on improving the self-skills and practical capacities of students in the western region of the Kingdom of Saudi Arabia. Materials and methods: The study was a descriptive cross-sectional electronic web-based survey that was submitted on a web-based questionnaire; 183 students answered the survey, and then, the data were analyzed using SPSS. Results: This study shows that 95.6% of participants agree and strongly agree that the health volunteering experience was useful, 2.7% of the participants neither agree nor disagree, and 1.6% disagree and strongly disagree. Regarding the distribution of the participants on skills learned from volunteering experience, the largest proportion of student (36.1%) volunteers in the health sector acquired communication skills and the smallest proportion of student (14.8%) volunteers in the acquired time management skills. Regarding the disadvantages, 81.4% of the participants do not think there were any disadvantages to their previous health volunteering experience, while only 18.6% of them think there were any disadvantages to their previous health volunteering experience. Additionally, the study found that the type of the sector affects the skills acquired from health volunteering. Conclusion: Research revealed that the majority considered volunteering a great experience. Volunteering increased the self-skills and practical capacities of radiology students, which proved the hypothesis.

3.
Saudi J Biol Sci ; 28(8): 4358-4364, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34354420

RESUMO

Antibiotic resistance is a common and serious public health worldwide. As an alternative to antibiotics, bacteriophage (phage) therapy offers one of the best solutions to antibiotic resistance. Bacteriophages survive where their bacterial hosts are found; thus, they exist in almost all environments and their applications are quite varied in the medical, environmental, and industrial fields. Moreover, a single phage or a mixture of phages can be used in phage therapy; mixed phages tend to be more effective in reducing the number and/or activity of pathogenic bacteria than that of a single phage.

4.
Infect Drug Resist ; 14: 1247-1253, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33790595

RESUMO

Beauty salons can do marvel prettiness for their customers; however, they are also considered as major health concern. They are a reason for the spread of viral, fungal and bacterial diseases. Many research isolated pathogenic bacteria and fungi from beauty salons products and tools. In this review we aim to increase the public's awareness of the potential for disease transmission through the common tools and products used in beauty salons. Furthermore, heighten salons' standards of care in sterilizing beauty tools and products and storing them properly.

5.
J Affect Disord ; 272: 104-109, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32379600

RESUMO

INTRODUCTION: Exposure to adverse childhood experience (ACE) has harmful consequences for children's health and well-being. However, it is less clear how different social processes may amplify or mitigate the effects of ACE on children's mental health. We examined how parenting stress mediates and family resilience moderates the associations of ACE with children's mental health and attention-deficit/hyperactivity disorder (ADHD) outcomes. METHODS: This secondary data analysis included 44,684 children aged 6-17 years from the 2016-17 National Survey of Children's Health (NSCH). Logistic regression with survey weights was used to account for the complex survey design and obtain odds ratios (OR) and 95% CI adjusted for sociodemographics. RESULTS: Overall, 7.3% of children had any mental health condition and 10.4% had ADHD. A higher ACE score (per 1-unit increase) was associated with a higher prevalence of any mental health condition (OR = 1.33, 95% CI: 1.27-1.40) and ADHD (OR = 1.21; 95% CI: 1.15-1.27) after adjustment for sociodemographics. Parenting stress mediated 57% of the total effect of ACE on any mental health condition and 60% of the total effect of ACE on ADHD diagnosis. The effect of ACE on mental health and ADHD outcomes was stronger among children with low levels of family resilience and connection index (FRCI) than among those with higher levels of FRCI. CONCLUSIONS: Parenting stress may be a potential mechanism through which ACE impacts a child's mental health and behavioral outcomes. Family resilience can lessen the impact of ACE on children's mental health and behavioral disorders.


Assuntos
Experiências Adversas da Infância , Transtorno do Deficit de Atenção com Hiperatividade , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Criança , Saúde da Criança , Humanos , Saúde Mental , Poder Familiar
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