Microbe in the News Analysis

Bacteroides Fragilis and Bifidobacterium

Gut bacteria have been under vehement discussion for several years. Nonetheless, the article When Gut Bacteria Changes Brain Function by Kohn discusses whether the gut microbes such as Bacteroides Fragilis and Bifidobacterium influence brain development and ability to function properly (Kohn, 2015). This article has been chosen, as it was published in June 2015. Moreover, a similar topic was discussed in Guardian. However, it did not specify the particular species of the microbes, which were mentioned in the article.

The article reveals that the microbes in the gut tend to produce neurotransmitters such as serotonin, which are essential for the sufficient function of the brain (Kohn, 2015). The idea about the ability of gut microbes to influence the overall functioning and metabolism of an individual is not a novelty. Nonetheless, the concern of advancement of these microbes and sufficiently affecting the brain function is growing (Kohn, 2015).

Firstly, the primary features of the Bacteroides Fragilis have to be discussed. It is widely known that this microbe has an insignificant appearance in the human gut. Nonetheless, it is usually a primary cause of disease development (Holton, 2008). However, in the context of the article, the research of the influence of the microbe in the human body was expanded in the framework of the influence on the human brain. In this case, the connection between the disbalance of Bacteroides Fragilis and the gut and autism was determined (Kohn, 2015). It could be said that the Bacteroides Fragilis has a significant impact on the function of the brain and dramatically affects the social participation of an individual in regular interactions.

Bifidobacterium is another important gut microbe, which was discussed in the article. Bifidobacterium has both benefits and disadvantages, as it is necessary for proper digestion, and, at the same time, it might be a cause of urinary infection (Pathak, Trilligan, & Rapose, 2014). Nonetheless, in the framework of the article, the author discusses the benefits of the Bifidobacterium on brain function, as, in this case, it can operate as an antidepressant and decrease anxiety and stress levels (Kohn, 2015). The influence of Bifidobacterium on the functioning of the human body was not discussed before in this context. It is an entirely new perspective on the future utilization of gut bacteria for the treatment of psychologically malfunctioned patients.

In conclusion, it could be said that gut microbes are the essentialities for the function of the body. It seems that their influence on the functioning of the entire organism was underestimated. These microbes have not been publically discussed as being beneficial to the operation of the brain and reduction of the anxiety levels among psychiatric patients.

Benefits of Escherichia Coli and Bacillus Cereus

One of the microbes, which were chosen for the evaluation, is Escherichia coli. It could be said this microbe is actively utilized while testing new technologies such as protein formation (Lee & Lee, 2003). Nonetheless, some of its forms are not harmful to the human body. Moreover, Escherichia coli is an essential attribute, which forms the microflora of the gut. Consequently, one of the advantages is the fact that this microbe contributes to the sufficient absorption of vitamin K (Escherichia coli, 2008). It is widely known that vitamin K is an essential element for the proper function of the body. Furthermore, another benefit is the ability of the microbe to contribute to the increase of the safety of the internal environment. Consequently, in this case, it contributes to the proper functioning of the immune system. In the end, the contribution of Escherichia coli to the sufficient operation of the human organism remains significant, as it participates in the absorption of the vitamins. Nonetheless, the insufficient functioning of Escherichia coli might lead to intoxication.

The next bacteria are Bacillus Cereus. One of the significant benefits is the fact that this microbe is often used as a probiotic for humans (Jensen, 2014). Probiotics are essential. It is widely known that probiotics have a high contribution to the sufficient balance of the microflora (Giacchi, Sciacca, & Betta, 2015). Maintenance of the microflora in balance is a necessity, as it helps have the immune system in the proper condition and keep the human organism protected from possible dangerous illnesses. In this case, Bacillus Cereus is a necessity, as it contributes to the maintenance of safety levels in the human body. Nonetheless, the Bacillus Cereus is used in food production, as it is not fatal for individuals. Nevertheless, the overuse of Bacillus Cereus might lead to dangerous food poisoning, it is necessary to follow the proper cooking principles to avoid the negative consequences of the bacterium. In the end, the Bacillus Cereus is a necessity despite having some disadvantages.


Escherichia coli. (2008). Web.

Giacchi, V., Sciacca, P., & Betta, P. (2015). Multistrain probiotics: The present forward the future. In R. Watson & V. Preedy, The Mediterranean diet: An evidence-based approach (pp. 279-302). London, UK: Elsevier, Inc.

Holton, J. (2008). Enterotoxigenic bacteroides fragilis. Current Infectious Disease Reports, 10(2), 99-104.

Jensen, I. (2014). Bacillus. In C. Batt & M. Tortorello (Eds.), Encyclopaedia of food microbiology (pp. 111-117). London, UK: Elsevier, Inc.

Kohn, J. (2015).When gut bacteria changes brain function. The Atlantic. Web.

Lee, P., & Lee, K. (2003). Escherichia coli–a model system that benefits from and contributes to the evolution of proteomics. Biotechnology and Bioengineering, 84(7), 801-814.

Pathak, P., Trilligan, C., & Rapose, A. (2014). Bifidobacterium–friend or foe? A case of urinary tract infection with Bifidobacterium species. BMJ Case Reports, 24(1).

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