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Molecular Study of Quercetin-Resistant Pseudomonas aeruginosa Isolated from Wound Infections
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Abstract<sec> <title>Background:

Quercetin, a crucial plant flavonoid, exhibits a range of pharmacological properties. A significant body of literature explores the antibacterial activity of the substance and its potential mode of action. Quercetin has shown the capacity to inhibit the growth of several types of gram-positive and gram-negative bacteria, as well as fungi and viruses.

Objectives:

The work presented sought to identify siderophore genes in quercetin-resistant Pseudomonas aeruginosa. Bacterial isolates from swab samples taken from patients suffering from complicated wound infections.

Materials and Methods:

A total of 200 swab samples were collected from attending patients. Compared to patients who are male (41%), the majority of patients (59%) were female. The patients have provided swab samples for sterile swab transport, displaying signs of a wound infection. The samples were cultivated on nutrient agar, blood agar, MacConkey agar, and cetrimide agar, and they were incubated for 24 h at 37°C.

Results:

The results were recorded by isolating gram-negative bacteria and observing developed colonies after identifying n = 59 (29.5%) isolates from 200 clinical samples as P. aeruginosa . The plcN and exoS genes were found in the isolates chosen. In this study, n = 10 (100%) isolates tested positive for the 16s rRNA housekeeping gene, n = 8 (80%) of isolates tested positive for the plcN gene, and n = 8 (80%) isolates tested positive for the exoS gene.

Conclusion:

The high prevalence of plcN and exoS gene detection in quercetin-resistant strains may be the primary reason for the high virulence factor in connection with quercetin resistance.

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Publication Date
Tue Jan 18 2022
Journal Name
Materials Science Forum
The Effect of Gamma Radiation on the Manufactured HgBa&lt;sub&gt;2&lt;/sub&gt;Ca&lt;sub&gt;2&lt;/sub&gt;Cu&lt;sub&gt;2.4&lt;/sub&gt;Ag&lt;sub&gt;0.6&lt;/sub&gt;O&lt;sub&gt;8+δ&lt;/sub&gt; Compound
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In this article four samples of HgBa2Ca2Cu2.4Ag0.6O8+δ were prepared and irradiated with different doses of gamma radiation 6, 8 and 10 Mrad. The effects of gamma irradiation on structure of HgBa2Ca2Cu2.4Ag0.6O8+δ samples were characterized using X-ray diffraction. It was concluded that there effect on structure by gamma irradiation. Scherrer, crystallization, and Williamson equations were applied based on the X-ray diffraction diagram and for all gamma doses, to calculate crystal size, strain, and degree of crystallinity. I

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