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Narrow-spectrum antibiotics have low propensity to induce bacterial resistance and are less likely to disrupt the microbiome (normal microflora). [3] On the other hand, indiscriminate use of broad-spectrum antibiotics may not only induce the development of bacterial resistance and promote the emergency of multidrug-resistant organisms, but also cause off-target effects due to dysbiosis.
This is the first study that shows antibiotics [are] independent of changing the biome and microbiome of the gut by changing the cells of the gut independent of bacteria, which is [a] completely ...
An antibiotic is a type of antimicrobial substance active against bacteria.It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections.
Antimicrobial use has been common practice for at least 2000 years. Ancient Egyptians and ancient Greeks used specific molds and plant extracts to treat infection. [5]In the 19th century, microbiologists such as Louis Pasteur and Jules Francois Joubert observed antagonism between some bacteria and discussed the merits of controlling these interactions in medicine. [6]
[33] [34] The ways the microbiome influences human and animal health, as well as methods to influence the microbiome are active areas of research. [35] Research has suggested that microorganisms could be useful in the treatment of cancer. Various strains of non-pathogenic clostridia can infiltrate and replicate within solid tumors. Clostridial ...
Colonization resistance is the mechanism whereby the microbiome protects itself against incursion by new and often harmful microorganisms. [1] [2] [3]Colonization resistance was first identified in 1967, and it was initially referred to as antibiotic-associated susceptibility.
[22] [23] This is done by comparing animals with a standard commensal gut microbiome to germ free, or by colonising a germ free animal with an organism of interest. The gut microbiota can vary between research facilities which can be a confounder in experiments and be a cause of lack of reproducibility. [24]
Although antibiotic sensitivity testing is done in a laboratory , the information provided about this is often clinically relevant to the antibiotics in a person . [36] Sometimes, a decision must be made for some bacteria as to whether they are the cause of an infection, or simply commensal bacteria or contaminants, [ 28 ] such as ...