Journal of Emergency Health Care
Formerly known as: International Journal of Medical Investigation
Volume 11, Issue 4 (12-2022)
J Emerg Health Care 2022, 11(4): 147-158 |
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Laki M S, Hosseini F, Tabatabaei R R. The Effect Of Vancomycin-Loaded Niosomes On MRSA Strains Of Staphylococcus Aureus And Expression of MECA, HLA, and HLB Genes. J Emerg Health Care 2022; 11 (4) :147-158
URL: http://intjmi.com/article-1-938-en.html
URL: http://intjmi.com/article-1-938-en.html
Department of Microbiology, Islamic Azad University, Tehran North Branch, Tehran, Iran
Abstract: (1565 Views)
Background:
Niosomes have received a lot of attention today due to their better penetration and controlled release. This study aimed to evaluate the antimicrobial effect of vancomycin-loaded niosomes on the microbial species of staphylococcus aureus.
Materials and methods:
In this study, 250 clinical samples of different patients’ specimens including blood, wounds, skin, and urine were collected from different medical centers (Imam Hossein, Atieh, and Sarem) in 2020. To synthesize nanodrugs, vancomycin was encapsulated in nosocomial nanocarriers by thin-film hydration, and optimization was performed based on the three main characteristics of nanocarriers. The process of drug release from nanocarriers and stability were investigated. Then, the antimicrobial properties against microbial species of staphylococcus aureus were investigated, and finally, the expression of mecA, hla, and hlb genes was determined using the real-time PCR technique.
Results:
According to the designed tests, a Span60 to Tween60 ratio of 50:50 and lipid content of 300 μmol were selected as the optimal form. The optimal nanoliposomes showed a size of 190.7 nm, a particle dispersion index (PDI) of 0.177, and retention efficiency of 71.22%. The process of drug release from the nanocarrier showed about 50% drug release from the niosome during 24 hours and about 60% after 72 hours. Stability studies over 3 months at two temperatures of 25 °C and 4 °C on the optimal sample showed that the samples stored in the refrigerator were more stable. The antimicrobial properties of the vancomycin-loaded niosomes against the mentioned microbial species showed better results compared to the free form of the drug. The nanoparticle was also able to further reduce the expression of virulence genes including mecA, hla, and hlb compared to the free form of the drug.
Conclusion:
The favorable physical properties, efficient antimicrobial effects, and low toxicity make vancomycin-loaded niosome nanocarriers a suitable candidate for the treatment of some common bacterial wound infections.
Niosomes have received a lot of attention today due to their better penetration and controlled release. This study aimed to evaluate the antimicrobial effect of vancomycin-loaded niosomes on the microbial species of staphylococcus aureus.
Materials and methods:
In this study, 250 clinical samples of different patients’ specimens including blood, wounds, skin, and urine were collected from different medical centers (Imam Hossein, Atieh, and Sarem) in 2020. To synthesize nanodrugs, vancomycin was encapsulated in nosocomial nanocarriers by thin-film hydration, and optimization was performed based on the three main characteristics of nanocarriers. The process of drug release from nanocarriers and stability were investigated. Then, the antimicrobial properties against microbial species of staphylococcus aureus were investigated, and finally, the expression of mecA, hla, and hlb genes was determined using the real-time PCR technique.
Results:
According to the designed tests, a Span60 to Tween60 ratio of 50:50 and lipid content of 300 μmol were selected as the optimal form. The optimal nanoliposomes showed a size of 190.7 nm, a particle dispersion index (PDI) of 0.177, and retention efficiency of 71.22%. The process of drug release from the nanocarrier showed about 50% drug release from the niosome during 24 hours and about 60% after 72 hours. Stability studies over 3 months at two temperatures of 25 °C and 4 °C on the optimal sample showed that the samples stored in the refrigerator were more stable. The antimicrobial properties of the vancomycin-loaded niosomes against the mentioned microbial species showed better results compared to the free form of the drug. The nanoparticle was also able to further reduce the expression of virulence genes including mecA, hla, and hlb compared to the free form of the drug.
Conclusion:
The favorable physical properties, efficient antimicrobial effects, and low toxicity make vancomycin-loaded niosome nanocarriers a suitable candidate for the treatment of some common bacterial wound infections.
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