Adolescent and Adult Gut Microbiota The gut microbiota acquired as an infant shapes the diversity of the microbiome into adulthood(6). Human gut microbiota begins developing into an adult-like composition within three years after birth. The interpersonal differences in gut microbiota is greater among children and adolescents than in adults, but the diversity of gut microbiota is observed to be greater in adults than children. For example, phylotypes belonging to Bifidobacterium significantly declined with age, which had previously dominated the infant gut flora, while the overall operational taxonomic unit (OTU), observed in children and adults, increases with age. The difference or similarities between the gut microbiota data does not support a strong genetic inheritability, as …show more content…
When comparing the gut microbiota of breast fed infants to elderly adults from the United States, Malawians, and Amerindians, a significant difference in diversity in flora was observed. The United States had the least diversity out of the three. A western lifestyle affects the gut microbiota in a negative way when compared to a non-western lifestyle. The typical US diet is rich in protein, while diets in Malawi and Amerindian populations consist of corn and cassava. The difference in microbiomes associated with the diet differences are parallel to those observed between carnivorous and herbivorous mammals. An overrepresentation of the number of enzymes involved in the degradation of amino acids such as aspartate, proline, glutamine, ornithine, and lysine were observed. An overrepresentation of enzymes that were involved in the degradation of simple sugars, sugar substitutes, and host glycans were also observed in the US gut microbiome. The gut microbiome observed in Malawians and Amerindians had an overrepresentation of α-amylase, which is involved in the degradation of
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.
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
Readers not only learn why microbes emerge at these particular stages in human civilization and how they cause lethal infections, diseases, and pandemics, but also how microbes, with their dynamic interactions with humans, impact and shape human life. In addition, Crawford tracks human progress towards understanding the cause of communicable diseases and fighting against the disease-causing microbes with treatments and preventions, which includes antibiotics and vaccinations. In the final chapter of Deadly Companions, Crawford outlines our current situation with evolving pathogenic microbes despite the interference from modern advancement and knowledge. These killer microbes continue to exploit society; especially with poverty, travel, and drug behavior providing opportunities for our deadly companions to
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,
Microbiome of the Equine Hindgut Gastrointestinal microbiota play an essential role not only in digestion, but also in colonic diseases. The gut microbiome is one of the densest, most dynamic, and complex microorganism populations located in the intestines [7]. If these microbes become unbalanced, this could result in gastrointestinal disease and even death. This unbalanced microbiome allows opportunistic and pathogenic bacteria to proliferate and can cause numerous gastrointestinal diseases such as colic.
The authors then explain the differences in diet across geographic regions, as well as introduce the differences between northernmost village diets and North American diets. Modern dieting is
In the first four chapters of Deadly Companions author Crawford takes us on a journey on how microbes shaped our history. Starting with when microbes first appeared on planet Earth to Darwinian evolution of single celled organism. In chapter two “Our Microbial Inheritance” she discussed the relationship of microbes with hunter-gatherers and early settlements; and their relationship to disease. She looks at the impact of microbes on the lives of individuals and the population as a whole. Hunter-gatherers were small groups of people that hunted for food, moving from place to place.
A few months after my healthy birth, my mom and dad, as well as my daycare provider, noticed I just was not thriving like a toddler should be. I could only walk for a short time using furniture or holding a hand. My body functions also had changed and my body did not digest anything, but my appetite had accelerated. For example, for supper I would eat three hotdogs, macaroni and cheese and beans. Even though I was eating all that food, I was becoming very skinny.
First, a microbiome are the microorganisms in a particular environment, including in parts of the body. All animals have groups of bacteria in their gut. I can 't really find a ton out but I have learned is that When the microbiome is healthy and diverse, its effects can be seen in skin, immune, brain, hormone function along with practically everything else directly or indirectly. Wolves Change the
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 Giardia Lamblia is a protozoan parasite. About 200 million people had infected in the world but this value just an estimate since that only 500 000 of new cases reported in a year. Previously, higher prevalence of occurance in the developing countries (20% and 30%) compare to developed countries (2% and 5%) (Wilson, 1984; Farthing, 1994).. Malaysia was considered as the developing country.
Our gastrointestinal tracts work hard to keep us healthy and happy. When gut health is compromised, we can face major health consequences. Here’s how to use good nutrition to keep your digestion humming along. “Heal the gut and you heal yourself.” – Gerard E. Mullin, MD
The equine species is an animal that has a long history of evolution and formation. The surrounding environment causes the horse to adjust and adapt its body simultaneously in order to survive in this ever-changing world. However, with any species there will always be downfalls and weaknesses in an animals anatomy and physiology when presented with changes in the standard conditions the body was initially designed for. These changes can lead to various illnesses and diseases that can hinder an animals performance or potentially lead to death. One of the diseases a horse can come across in its lifetime is laminitis.
Nutritional deficiencies result in impaired physical and mental development of humans, loss of productivity, susceptibility to various diseases among others (Lim et al, 2012). They are caused not only by low quantities of food consumed but also by poor dietary diversity; as dietary diversity is a good indicator of broader nutritional status. More diverse diets are associated with lower rates of nutritional problems in many parts of the world (Popkin and Slining, 2013). As a result, to improve nutrition and health, it is important to increase dietary diversity. It has been noted that in Africa and Asia, majority of malnourished people are rural dwellers who are smallholder farmers (Pinstrup-Andersen, 2007).
DIARRHEA Definition and Overview Diarrhea is a medical condition where the patient has at least three loose or liquid bowel movements a day. It is one of the most common diseases experienced by any age group, and is especially common in children. The most significant complication of diarrhea is dehydration. Dehydration is a condition resulting from massive loss of body water and electrolytes. When diarrhea ensues, body fluid and electrolytes are eliminated by the body before they are adequately absorbed.