Microbes and the human body
10% Human: How Your Bodys Microbes Hold the Key to Health and Happiness by Alanna CollenFino a non molto tempo fa eravamo convinti che il ruolo dei microbi fosse per lo più irrilevante, ma la scienza sta svelando unaltra verità: forse sono i microbi a gestire il nostro corpo e la salute senza di loro sarebbe impossibile. La biologa Alanna Collen ha scritto un libro affascinante e stupefacente in cui, attingendo alle più recenti scoperte scientifiche, dimostra che la colonia di microbi che ospitiamo influenza il nostro peso, il sistema immunitario, la salute mentale e persino la scelta del partner. Molte delle moderne patologie, tra cui obesità, autismo, disturbi mentali, problemi della digestione, allergie, malattie autoimmuni e persino i tumori, derivano dallincapacità di prenderci cura della più fondamentale e duratura relazione che intratteniamo: quella con la nostra colonia di microbi. Ci sono però anche buone notizie: a differenza delle cellule umane, è possibile migliorare i microbi. La vita e il corpo umano non ci sembreranno più gli stessi.
What is the Microbiome Program?
Microbes evolved to colonize different parts of the human body
Micro-organisms affect every aspect of life on Earth. Some microbes cause disease but the majority are completely harmless. More on About Microbiology. Botox is made from a deadly bacterial toxin which is used in very small doses to remove wrinkles. Micro-organisms can be used to demonstrate principles of biology and to model industrial processes, as well as offering opportunities for teaching across the curriculum. More on Teachers.
Wednesday, June 13, Genome sequencing creates first reference data for microbes living with healthy adults. Microbes inhabit just about every part of the human body, living on the skin, in the gut, and up the nose.
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Gut reaction: the surprising power of microbes | Ed Yong
As the human species evolved over the last six million years, our resident microbes did the same, adapting to vastly different conditions on our skin and in our mouths, noses, genitalia and guts. A team of Duke University scientists has tracked how this microbial evolution unfolded, using mathematical tools originally developed for geologists. - A plethora of conditions, from obesity to anxiety, appear to be linked to the microbes inside us.
The human microbiome is the aggregate of all microbiota that reside on or within human tissues and biofluids along with the corresponding anatomical sites in which they reside,  including the skin, mammary glands, placenta, seminal fluid, uterus, ovarian follicles, lung, saliva, oral mucosa , conjunctiva , biliary tract , and gastrointestinal tract. Types of human microbiota include bacteria , archaea , fungi , protists and viruses. Though micro-animals can also live on the human body, they are typically excluded from this definition. In the context of genomics , the term human microbiome is sometimes used to refer to the collective genomes of resident microorganisms;  however, the term human metagenome has the same meaning. Humans are colonized by many microorganisms; the traditional estimate is that the average human body is inhabited by ten times as many non-human cells as human cells, but more recent estimates have lowered that ratio to or even to approximately the same number. Those that are expected to be present, and that under normal circumstances do not cause disease, are sometimes deemed normal flora or normal microbiota. The Human Microbiome Project took on the project of sequencing the genome of the human microbiota, focusing particularly on the microbiota that normally inhabit the skin, mouth, nose, digestive tract, and vagina.
Micro-organisms affect every aspect of life on Earth. Some microbes cause disease but the majority are completely harmless. More on About Microbiology. Dr Winkle Weinberg, an infectious diseases expert, reckons that when we have a cold and cough the virus particles can travel at kilometres an hour and up to metres. That is faster than a passenger jet at takeoff! Micro-organisms can be used to demonstrate principles of biology and to model industrial processes, as well as offering opportunities for teaching across the curriculum. More on Teachers.