Microorganism

The variability of the human gut microbiome and its effect on health Abstract The human gut microbiome consists of a wide range of microbes such as bacteria, fungi and archaea which can be found in the gastrointestinal tract. This gut microbiome can have both beneficial and harmful effects on the host. On one hand, it is involved in processes such as modulation of the immune system and metabolism which are beneficial for the human host. On the other hand, an imbalance in the gut microbiome…

1. Problem to be addressed. To study the effect of a paraprobiotic, heat inactivated Lactobacillus gasserei, on the functioning of the central nervous system using mouse models. 2. Background to the problem. The microbial composition of the gut in early life is known to influence the development and functioning of the adult brain, including behavioral functions. Many behavioural disorders like anxiety, depression and autism have been linked to severe damage to the gut microbiota. Studies have…

Human Antibiotics Resistance and Food Animal Production Antibiotics are one of the most successful treatments in medicine that save millions of lives, and definitely decrease morbidity and mortality rates caused by infections. However, misusing of antibiotics can cause antibiotic resistance, which means that the bacteria that cause the infection become resistance to the antibiotics so they are no longer effective. Antibiotic resistance is a serious rising threat to the global public health…

Pathogenic bacteria species have been resistant to antibiotics before humans even made antibiotics. These bacterial samples which have displayed natural antibiotic resistance are as such due to genetic variation and mutations. When a bacterial species is exposed to an antibiotic, there is a selective pressure working against the majority which is not resistant. This leads to a decrease in the population of non-resistant bacteria yet an increase in the population of resistant bacteria since they…

The Genus Bordetella Bordetella are catalase positive, asaccharolytic, aerobic, gram positive rods, whose optimal growth is at 35° to 37°C. Disease 1. Species of Bordetella is known to cause respiratory diseases like whooping cough, pneumonia, and sinusitis. 2. There are eight species of Bordetella that cause different diseases including Bordetella parapertussis, Bordetella bronchiseptica, Bordetella avium, Bordetella hinzii, Bordetella holmessi, Bordetella trematum, Bordetella pertussis,…

Medical data from the DMSS can not be used to determine whether repeat bacterial vaginosis infections were because of treatment failure. According to Joesoef et al. (1999), oral metronidazole (500mg twice daily for a week) is the conventional antibiotic to treat bacterial vaginosis per the U.S. Centers for Disease Control and Prevention recommendation. This antibiotic treatment is followed by U.S. military hospitals, but the efficacy has reportedly declined from 90% to 50-80% over the past…

Antibiotics and disinfectants are both used to kill and prevent the growth of bacteria. Antibiotics come from the fungi family and are commonly used to kill bacteria. While each antibiotic works differently for particular bacterias, all of them either target physiological pathways to enable the disruption and killing of bacteria or it inhibits of cell growth ((of prokaryotic cells)). The physiological pathways are genetic and biochemical (act in converting to mediate bacterial response to an…

Unknown Bacteria 228 Adisney Pino Professor Dowding Miami Dade College Section T/R 7:05PM Introduction Enterobacter aerogenes is rod-shaped bacteria that belongs in the family of Enterobacteriaceae. This rod-shaped bacterium is gram negative which makes it a facultative anaerobe which grew perfectly in 37-degree temperature. This species was motile and therefore it can synthesize an enzyme known as ornithine decarboxylase. This bacterium is prevalent in the intestines of animals…

Discovering Unknown 41 The overall reasoning for this experiment is to figure out what the unknown bacteria is through a process of tests and research. There are several differential media and selective & differential medias used throughout my findings, and all were done using aseptic technique. Based on the results of my test I came to a conclusion that my unknown 41 is Kocuria rosea. In order to deferiencate my unknown from the possibilities I went by the dichotomous key provided. After I…

Louis Pasteur wasn’t Einstein or Leonardo Da Vinci but his contributions to society played a major role in health. He contributed to science, technology, and medicine. Pasteur was one of the most important founders of medicine and microbiology. We can’t help but wonder how much of a change he would’ve made if he still was alive. One of his biggest accomplishments was pasteurization treatment which resolves pathogenic micro-organisms in certain foods and beverages. Pasteur was born in Dole,…