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Effect of intraperitoneally administered nucleoside-nucleotide on the recovery from methicillin-resistant
A A Adjei1, F Takamine, H Yokoyama
1School of Health Sciences and Research Center of Comprehensive Medicine, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan.
Abstract:
The effect of intraperitoneally administered nucleoside-nucleotide on the recovery from methicillin-resistant Staphylococcus aureus (MRSA) strain 8985N infection was studied in mice. Mice fed nucleic acid-free 20% casein diet were administered intraperitoneally with a nucleoside-nucleotide mixture or with saline (control group) daily for 30 days. On the tenth day on this treatment, mice were challenged with the bacteria. The survival rates were 25% and 72% for the control and nucleoside-nucleotide groups, respectively. The recovery of the survived mice from the infection was confirmed by the increment of body weight and the reduction of the bacteria in the organs. The results show the effectiveness of the intraperitoneal administration of the nucleoside-nucleotide mixture for the recovery from the MRSA strain 8985N infection in mice.
Insights
Nucleoside-nucleotide supplementation enhanced recovery in mice infected with methicillin-resistant Staphylococcus aureus (MRSA). This treatment significantly improved survival rates and aided bacterial clearance, demonstrating its effectiveness against MRSA infections.
Area of Science:
- Microbiology
- Immunology
- Pharmacology
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant global health threat due to its resistance to antibiotics.
- Developing novel therapeutic strategies to combat MRSA infections is crucial.
Purpose of the Study:
- To evaluate the efficacy of intraperitoneally administered nucleoside-nucleotide mixtures in promoting recovery from MRSA infection in a murine model.
Main Methods:
- Mice were fed a nucleic acid-free diet and received daily intraperitoneal injections of a nucleoside-nucleotide mixture or saline for 30 days.
- Mice were challenged with MRSA strain 8985N on day 10 of treatment.
- Survival rates and indicators of recovery, such as body weight gain and bacterial load in organs, were assessed.
Main Results:
- The nucleoside-nucleotide group exhibited a significantly higher survival rate (72%) compared to the control group (25%).
- Survived mice in the nucleoside-nucleotide group showed improved body weight and reduced bacterial presence in organs, indicating effective recovery.
- Intraperitoneal administration of nucleoside-nucleotides demonstrated a protective effect against MRSA infection.
Conclusions:
- Intraperitoneal administration of nucleoside-nucleotides is effective in improving survival and recovery from methicillin-resistant Staphylococcus aureus infection in mice.
- This approach offers a potential therapeutic strategy for managing MRSA infections.