Microbial Cells And The Human Body

The relationship between the human gut microbiome to health and disease is strong. Human physiology, metabolism, nutrition, and immune function are all affected by the composition of the gut. If the composition of the gut microbiome is altered in a way that any of these functions are negatively affected, this can lead to disease. The developments of the microbiome, its complexity, and its functionality in health and disease have been extensively studied. In addition, the way in which it is altered has many implications in the cause of diseases, such as bowel disease, obesity, diabetes and cancer.

Gut microbiota is a complex community of micro-organism species that live within the digestive tract. It is the largest reservoir of micro-organisms mutual to both humans and animals. The Gut microbiome consist of as many as 1,000 types of bacteria. The microbiome also consists of as many as 10 times the amount of cells and roughly as many as 150 times as many genes as the human genome contains. The microbiome has a symbiotic relationship with its human host and it co-evolves. The gut microbiome is a finely tuned eco-system, but its development depends on a number of factors, such as:

There are approximately 3.3 million genes (according to the European’s census of microbial genes) in the human digestive system. In comparison, it is about 150 times the count of 20,000-25,000 genes our own gene.

More than a century ago the notion of microbiota working as a regulator for health and disease was already in use. They realized that consuming large amounts of fermented milk helped with their longevity. This began the foundation of probiotics. However, the oral probiotics that are used today are at a lower amount than what is contained in the colon. After cycling through the digestive system it is

Unique microbiota could suggest a human’s current health or if there is any forthcoming chronic disease (Ley, 2006). Families with shared healthy microbes may be able to help relatives who suffer from gastrointestinal disease; but the extant to which the microbiome is shared across generations is not readily known and more research is needed. The core trends for current research revolve around control of obesity, treatment of gastrointestinal diseases such as Crohn’s, and hormonal manipulation in cases of depression. It is imperative to learn to eat for optimal health, to evolve along with the commensals (Turner et al., 2013) as human diets influence diversity of microbes present (Ley et al., 2008). This is a relatively new field with exciting prospects of positive outcomes for some of society’s more chronic

There is a large number of species of microbes found on the human body. This bacterial organism are found in the skin, mouth, or nose. This lab consisted of the collection of skin bacterial organisms and amplification of the 16s rRNA to construct a small molecular phylogeny of the human body microbiome, or the community of microorganisms that reside in the epithelia of humans. This information could only be acquired through processes such as DNA extraction, amplification of specific genetic target by the polymerase chain reaction (PCR), agarose gel electrophoresis, restriction enzyme digestion, cloning of DNA fragments into plasmid vector, transformation and blue/white clone colony screening. Through the phylogenetic tree analysis

We know currently essential information about microbiomes to help us understand the human body a little better. The skin, mouth, esophagus, stomach, colon, gut, and vagina are composed of microbial communities. Collectively, the gut has the most information. Information pertaining to these body parts however, are limited simply because each individual is unique This makes each body just as unique as the person. (The Scientist Staff) It is in still in question whether we are functionally redundant between community members, and what kind of factors are influencing this. (Turnbaugh)

Zhang et.al. did a study with the aim of assessing the relative contributions of host genetics and diet in shaping the gut microbiota and modulating metabolic syndrome related phenotypes. They fed wild type mice C57BL/6J) and Apoa-1 knockout mice normal chow or a high fat diet (HFD) for 25 weeks. The knock out mice had impaired glucose tolerance and high body fat at baseline. They measured food intake and body weight evert 2 weeks and measured glucose tolerance and gut microbiota composition and population at baseline and at the end of the intervention at 25 weeks. According to their findings the wild type mice that were fed a high fat diet gained the most weight followed by the gene Apoa knockout mice. The same results were also seen for glucose tolerance test with the wild type mice on a high fat diet showing a larger spike in blood glucose. Significant differences in microbial composition was seen between animals on different diets rather than animals with genetic differences. HFD eliminated bifidobacteria and increased the abundance of endotoxin producing desulfovibrionaceae. Diet differences accounted for

The use of the first form of microbe-based therapeutics, probiotics, is beneficial for preventing disease. These live microorganisms are known to strengthen the equilibrium of the gut flora by the development of healthy gut

The gut microbiota encompasses trillions of microorganisms that inhabit the gastrointestinal tract (Carding et al. 2015). The composition of the gut microbiota is constantly evolving and can be susceptible to both endogenous and exogenous modifications (Carding et al. 2015). The microbiota

The human gut microbiota has become the subject of researches in recent years and our knowledge of the resident species and their potential functional capacity is rapidly growing. Our gut harbors a complex community of over 100 trillion microbial cells. Therefore, our gut microbiota evolves with us and plays a pivotal role in human health and disease. This has clear effects on physiologic, immunologic, and metabolic processes in human health, aberrations in the gut microbiome and intestinal homeostasis have the capacity for multisystem effects. Changes in microbial composition are implicated in the increasing for a broad range of inflammatory diseases, such as allergic disease, asthma, inflammatory bowel disease (IBD), obesity, and associated

Over two-thirds of adults, or nearly 69 percent are considered overweight or obese. Of those, more than one-third are considered to be obese, while more than 1 in 20 are classified with extreme obesity.1 The main causes of these overwhelming rates of overweight and obesity are all too familiar: an unhealthy diet, a sedentary lifestyle and to a lesser extent perhaps genes play a role as well. In recent years, however, researchers have become increasingly focused on a potential additional contributor to the obesity epidemic that lives inside us all: billions and billions of gut microbes or microbiota.2

In this article I read that microbes and their colonies play a huge role in our immune system and are literally everywhere on us, a large and very important part are in our gut. The ones in your gut help with diseases and with your health conditions. The epidemic of CDI in Europe and the USA has caused many people to request the treatment of fecal microbiota transplantation because it eradicates CDI. The new interest has been awakened by the investigation into gut microbiota, which is very important in resistant and energy metabolism. Some diseases result from microbiotic related dysfunctions and that is why we should check into FMT for other disorders also.

Although the gut microbiota are involved in a range of functions within the human body, this essay will focus on their role in the development of Irritable Bowel Disease (IBD). The human gut microbiota play a significant role in the metabolic health of individuals with irritable bowel diseases such as Ulcerative Colitis (UC) and Crohn’s Disease (CD). IBD, UC and CD are chronic gastrointestinal illnesses, all of which have an uncertain etiology. Symptoms of these illnesses can include diarrhoea, weight loss, ulceration, proliferation and even total obstruction of the gastrointestinal (GI) tract. (1). However the causes of these diseases are not strictly known(2). There are a vast number of bacterial species that reside within the GI tract, some of which can play a role in producing inflammation. It is believed that microbial patterns may play a role in causing IBD. The innate immune system may play a role in altering the gut microbiota profile. Certain pathogens have also been found to play a role in the development of IBD. Finally, diet and nutrition play a role in IBD, however certain nutrients are believed to have both positive and negative effects. This essay will aim to critically explore what is responsible for IBD: both internal and external factors that influence the human gut microbiota, and hence trigger IBD, or more specifically; an abnormal immune response in a vulnerable individual, or a deviation in immune function that leads to an altered immune response

Researchers noted how diet regulator of the GI microbiome, otherwise known as the ecosystem of the human GI tract. It alone is home to trillions of bacteria in a solution of unabsorbed macro- and micro-nutrients and remnants from digestion that help create new signaling molecules that make it so microbiota can communicate with each individual's metabolic and GI regulatory system.