INTRODUCTION
What is Microflora?
Bacterial flora that encompasses of a wide variety of microbes in a community that lives in the body and maintains an ecological relationship with the host. Between them, there is a mutual relationship and both the host and the microbe benefit from it. (1, 2). In humans, there is a large is a large eco-system of microbes and they have a tremendous influence on the human body, as research would attest. According to research, they have been linked to many conditions like obesity, diabetes and even diseases like cancer (1). In 2008, the human Microbiome project was introduced which designed studies to help understand the direct implications of the micro flora in the human body. They believed that the micro flora
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Human gut evolution can be looked up to as the mutualistic relationship with the enormous microbial community that resides in human gastrointestinal tract (GIT); this ecosystem is better known as Gut microbiota (GM).4 The number of bacteria thriving in the gut region of the human body has been estimated to exceed 1014. A recent study estimates that the ratio of human cells of bacterial cells is approximately 1:1, as a result the vast number of micro-organism in the body and the host collectively are often referred as …show more content…
He discovered notable differences in microbes between these two habitats. He further also compared samples from healthy & diseased individuals in both of these sites and thus started a pioneering work in understanding the location and health specific diversity of microbiota in the human gastrointestinal tract.3 The term ‘human Microbiome” was coined by Joshua Lederberg in 2001 to denote the genetic pool of all the gut microbiota and ever since there has been a quest amongst scientists to understand what microbiome could in fact be referred to as
The purpose of this lab report is to employ a myriad of skills, tools and, methods learned throughout this semester to perform the appropriate tests for the identification of the assigned unknown bacteria. Add more background information here!!! The most important tools and techniques used during this identification include aseptic technique, microscopic examination and, the use of selective and differential media. Aseptic technique is an important tool for microbiologists. It is imperative that aseptic technique is maintained throughout the length of any test to avoid any cross-contamination that may lead to inaccurate results.
The author starts by explaining the human microbiome and the research on it. For many years, biologists thought that the human body was able to perform all of its important functions by itself. However, in the past decade, they have found that the human body contains trillions of microorganisms that help with these important processes. In fact, they outnumber human cell 10 to one. At first, microbe research was only focused on harmful pathogens, but recently, biologists have figured out what the most common bacteria in the human body are, and have been trying to figure out the specific functions of theses microorganisms.
Gastroenterology Research & Practice, 1-6. doi: 10.1155/2016/2687605 Nanwa, N., Sander, B., Krahn, M., Daneman, N., Lu, H., Austin, P., Govindarajan, A., Rosella, L., Cadarette, M., & Kwong, J. (2017). A population-based matched cohort study examining the mortality and costs of patients with community-onset clostridium difficile infection identified using emergency department visits and hospital admissions. Plos ONE, 12(3), 1-13. doi:10.1371/journal.pone.0172410 Ng, K., Ferreyra, J., Higginbottom, S., Lynch, J., Kashyap, P., Gopinath, S., Naidu, N., Choudhury, B., Weimer, B., Monack, D., & Sonnenburg, J. (2013). Microbiota-liberated host sugars facilitate post-antibiotic expansion of enteric pathogens.
By understanding the connection between humans and the bacteria thanks to their knowledge of evolutionary history, they were able to replicate the effects of the disease in the bacteria. Research like this not only emphasizes the importance of evolutionary history, but it also has the potential to cure deadly diseases, like the one previously mentioned. Our biology class has studied cells as well, observing patterns through microscopes and identifying different parts of the cell, such as the nucleus and cell wall. Though we haven’t learned much about the mitochondria yet, the research discussed in this book has made me more curious about mitochondria and its role in the human
in another scenario he examines the main stereotypical factors that is association with microbes in our body and how media and news headline tend to examine illness and microbes from a fear standpoint without examining the scientific aspect behind the development and prevention of such microbes in the first
Although microscopic single-celled organisms inhabited earth long before humans evolved from their primate ancestors, they continue to coexist and coevolve with humans today, flourishing as both harmless and deadly companions. Within her literary work Deadly Companions: How Microbes Shaped Our History, microbiologist Dorothy Crawford begins with a dramatic account of severe acute respiratory syndrome (SARS), the first pandemic of the twenty-first century. Crawford travels back in time four billion years ago to the origin of microbes, recounting the evolutionary history of microbes, showing how microbes spread and cause epidemics, and revealing how coevolution yields host resistance. Furthermore, Crawford explores the intertwining history of microbes and humans, with the purpose to reveal the link between the emergence of microbes and the cultural development of man.
Of the Enterobacteriaceae family, there are genera that are in the normal human flora. Some species such as K. pneumoniae and E. coli are opportunistic pathogens which can capitalize on weakened host defenses and cause food poisoning (Baron, 1996). S. enterica secrete proteins that help aid in intracellular invasion and proliferation (Hensel, 2009). K. pneumoniae is a part of the normal human mouth, skin, and intestine flora, but can wreak havoc if inhaled (Ryan,
Being able to identify unknown microbes from systematic testing is what makes the field of microbiology so important, especially in infectious disease control. Using the testing procedure laid out by the microbiology field we are able to identify unknown bacteria present in our everyday lives, and along the way learn a lot about their characteristics that separate them from other types of bacteria. Being able to do this is vital in order for us to understand why microbes are present in certain places, how they are able to grow and what restricts their growth, that way they can be combatted if necessary. These techniques for determining unknowns are also important for isolating and testing infectious disease microbes in order to prevent spreading. Another important aspect of being able to identify unknown microbes is the
Introduction: Helicobacter pylori are a ubiquitous organism that can be seen in 50% of general population. Its association with various gastric disorders are well established in numerous studies after its discovery in 1983. Peptic ulcer disease is the most studied disease related to H Pylori infection. H. pylori are seen in 90% of duodenal ulcer and 75% of gastric ulcer Patients. This bacterium is also involved in the pathogenesis of several extra gastric diseases, such as mucosa-associated lymphoid tissue lymphomas ( Maltomas) gastroesophageal reflux disease ( GERD ) and gastric carcinomas.
This is launched to enhance the understanding of the role of Microbiome in the ecology of humans and using the concerned knowledge in the development of therapies for various illnesses (About MGH, nd, News Releases). The department of chemistry and biological engineering, and MIT institute of medical engineering and science are involved in collaboration with MGH clinical medicine. This new partnership will follow the one that was implemented among MIT, Ragon Institute of MGH and Harvard, which started in 2009 and worked on developing effective vaccine against AIDS as a part of their study on the role of immune system in human disease (MIT News, Oct. 15, 2014). This new partnership between MIT and MGH has offered $3 million to a two-year period research project dealing with the problems in diagnostics, autoimmune and infectious diseases and in
DNA in Forensic Science DNA is the carrier of genetic information in humans and other living organisms. It has become a very useful tool in forensic science since it was discovered. In forensic science, DNA testing is used to compare the genetic structure of two individuals to establish whether there is a genetic relationship between them. One example of the use of DNA in forensic science that is important in biology today is comparing a suspect’s DNA profile to DNA that was discovered at a crime scene.
Also, H. Pylori is the second cause of death from cancer. Despite the fact there are a lot of microbes that inhabit the human body, the H. Pylori which is most often a microbes that does not harm the human body. Moreover, this microbe can most likely protect children from asthma and esophageal cancer. Although, there are a lot of people in Africa that
Microbes were the first organism to occupy the Earth. They are a group of the smallest organisms and are single cellular organisms. Microbes are becoming important in areas such as biochemistry, genetics, agriculture and medicine. They are also important decomposers. One example, of a microbial life is the prokaryotes called bacteria.
Aim To measure if bacteria on people hands after eating dinner can impact on the mood growth on
INTRODUCTION: Quick look at your hands do you see them. (attention) Do I see what you might be asking? Well the millions of bacteria that are currently hanging out on your hands.