Search Results - Bacterium
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Actinobacteria (high- G+C)
Firmicutes (low- G+C)
Tenericutes (no wall) The bacteria ( [bæk't??r??] (help·info); singular bacterium)[a] are a large group of unicellular, prokaryote, microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals. Bacteria are ubiquitous in every habitat on Earth, growing in soil, acidic hot springs, radioactive waste,[2] water, and deep in the Earth's crust, as well as in organic matter and the live bodies of plants and animals. There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water; in all, there are approximately five nonillion (5×1030) bacteria on Earth,[3] forming much of the world's biomass.[3] Bacteria are vital in recycling nutrients, with many steps in nutrient cycles depending on these organisms, such as the fixation of nitrogen from the atmosphere and putrefaction. However, most bacteria have not been characterized, and only about half of the phyla of bacteria have species that can be grown in the laboratory.[4] The study of bacteria is known as bacteriology, a branch of microbiology. There are approximately ten times as many bacterial cells in the human flora of bacteria as there are human cells in the body, with large numbers of bacteria on the skin and as gut flora.[5] The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system, and a few are beneficial. However, a few species of bacteria are pathogenic and cause infectious diseases, including cholera, syphilis, anthrax, leprosy and bubonic plague. The most common fatal bacterial diseases are respiratory infections, with tuberculosis alone killing about 2 million people a year, mostly in sub-Saharan Africa.[6] In developed countries, antibiotics are used to treat bacterial infections and in agriculture, so antibiotic resistance is becoming common. In industry, bacteria are important in sewage treatment, the production of cheese and yoghurt through fermentation, as well as in biotechnology, and the manufacture of antibiotics and other chemicals.[7] Once regarded as plants constituting the class Schizomycetes, bacteria are now classified as prokaryotes. Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. Although the term bacteria traditionally included all prokaryotes, the scientific classification changed after the discovery in the 1990s that prokaryotes consist of two very different groups of organisms that evolved independently from an ancient common ancestor. These evolutionary domains are called Bacteria and Archaea.[8]
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Showing 1 to 25 of 273 Articles matching 'Bacterium' in related articles. |
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1. Benchtop Research Autoclaves
February 17, 2010
Benchtop research autoclaves are used for steam sterilization of research tools and devices, to provide highest standards in infection control. They offer rapid and complete sterilization. Autoclaves make use of the high heat and pressure of steam to kill almost any bacterium. They are available in many versions. Bioclave 16 Benchtop Research Autoclave 120 V and Bioclave 16 Benchtop Research Autoclave 230 V are two of them. Benchtop autoclaves find great application in medical and research laboratories, industries, pharmaceuticals, and so on. Portable and Easy to Use AutoclavesVersatility and... (read more)
Author: Jeremy Linder
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2. Causes and preventions of Lyme
February 08, 2010
A bacterium called “spirochete” is responsible for the infectious disease such as Lyme. The bacterium is also known as Borrelia burgdorferi in the US. Borrelia afzelii is the other bacterium found in Europe causing the disease. The ticks are found in the stomach of a deer. The disease spreads when the ticks bite your skin and the bacterium infects your body. There is not much to worry about because it is not an infectious disease and does not pass into other person from the affected one. There various disease symptoms are found in different parts of human body. Once it enters the skin it... (read more)
Author: Robin hood
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3. A bit of dirt won't kill you
February 05, 2010
When I was in my student days, one of my flatmates was a microbiology undergraduate. Over one fortnight, she had an experiment which involved Petri dishes being placed at odd places around the house and left to grow mould. Now, we all know student fridges can be bit dubious at the best of times, but while Katy (name changed for privacy reasons) had her bacterium cultures growing in the fridge, you just didn’t want to look very hard... Katy also kept us informed about the amount of bacteria that float around the typical house and the millions of bacteria that grow in tea towels. But were we... (read more)
Author: Nick Vassilev
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4. Melbourne Botox - general idea about defeating age treatment
February 01, 2010
Botulinum toxin is a neurotoxic protein produced by the bacterium, Clostridium botulinum. One of the many names that this protein uses in the marketplace is botox.
melbourne botox is based on the Botulinum Toxin A. It is used in cosmetic medicine for a number of treatments such as uncontrolled blinking, wrinkles, facial creases, severe brow furrow, crow’s feet and other important conditions caused by age. The botox treatment uses a minor amount of watered down botulinum that blocks the nerve impulses that contract the facial muscles.
This use has a relaxing effect over the muscle... (read more)
Author: alina thomas
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5. What is Cephalexin Keflex?
January 26, 2010
What are cephalosporins?The cephalosporin class was developed to make better the realizations of the penicillin family. Cephalosporins, as well as panicillin are biological in origin stemming from a substance called cephalosporin C, produced by the bacterium Cephalosporium acremonium. What is cephalexin?Cephalosporin antibiotics are classified into three groups. The first group developed - the so-called First Generation Cephalosporins - is effective against most infections with Gram-positive bacteria, some Gram negative infections and is able to withstand the anti-penicillin enzymes produced b... (read more)
Author: Donald Morse
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6. Yeast Free Diet - Why a yeast free diet?
January 22, 2010
Yeast is an active bacterium that is used in many foods in the U.S. and around the world. It leavens bread, ferments beers and wines, curdles and ages cheeses, and many other roles in food production. However, pathogens in yeast are capable of building up in the body and having minor to moderate harmful effects on the skin, lungs, and other organs. Thus, many people sensitive to yeast pathogens must be prescribed a yeast free diet.
Are yeast free diets healthy and necessary?
Yeast free diets are comprised of many proteins and leafy vegetables and very few sugars or breads. Lean meat... (read more)
Author: Chad Smith
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7. Adult Acne Information
January 18, 2010
When there is an excess of sebum, the area around a hair follicle and the opening through the skin (the pore) can become clogged. A bug, a bacterium called Propionobacterium acnes that live normally on the skin can thrive within the blocked pore. This infection causes inflammation that is responsible for the redness and swelling of a spot. Sometimes in severe acne, the pocket of inflammation within a pore can rupture and cause damage to the skin that can result in scarring.
Adult acne can cause a number of different types of spots. Typically, people with acne get blackheads (c... (read more)
Author: iverson yeong
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8. Can Cranberry Juice Help with Cavities?
January 18, 2010
Researchers at the University of Rochester have published information showing that the cranberry may be effective at preventing tooth decay. The research focuses on the inhibiting effect of some compounds found inside the cranberry against a key bacterium blamed in the formation of cavities.
"Scientists believe that one of the main ways that cranberries prevent urinary tract infections is by inhibiting the adherence of pathogens on the surface of the bladder. Perhaps the same is true in the mouth, where bacteria use adhesion molecules to hold onto teeth," says Dr. Michel Koo, an oral biol... (read more)
Author: Alberto Martinez
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9. Acne Treatment With Oral Antibiotics
January 18, 2010
Acne is inflamed because of infection by bacteria P. acnes. This bacterium infects the sebum and rapidly multiplies inside the gland. With infection, the gland gets inflamed and the infection spreads to dermis and the cells deeper in the skin. If this is left unchecked, the acne ruptures after damaging the deeper skin cells and cause scars. To stop this antibiotics are a great help.
How antibiotics work-
Antibiotics work by selectively killing the bacteria. They do not cause damage to the cells of the body. By killing the bacteria antibiotics reduce the infection and in... (read more)
Author: joshua lim
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10. A natural antidote to treat cystitis everlastingly
January 18, 2010
Feeling severe pain in lower abdomen and back!? Passing out cloudy urine with a foul smell frequently? Be careful! All these might be the symptoms of cystitis or urinary tract infection. Antibiotics are not the only means to fight with this, there are other alternatives as well. E-coli bacterium is the culprit that responsible for most of the cases of cystitis. Generally E-coli take shelter in the digestive system of human beings, mostly in the intestines. But problems appear when they attack the urinary tract. The infection mainly occurs due to the flow of germs in the lower organ while ... (read more)
Author: Tamim Ahmad
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11. Gonorrhea And Its Cure
January 15, 2010
Gonorrhea is one common type of STD. It is called by the bacterium Neissie gonorrhoeae that grows and multiplies rapidly in warm and damp areas of your reproductive tract. It is the second most commonly reported STD in the United States. Gonorrhea can affect the mouth, throat, anus, cervix, and urethra. Caused by bacteria know as Neisseria gonorrhoeae which grows and spreads in the warm, moist areas of the reproductive organs including the cervix, the urethra and the fallopian tubes in women.
The disease is also known as the "silent infection" because over half of the women who are infect... (read more)
Author: altruist jone
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12. Acne Light Treatment - an Acne Cure ?
January 13, 2010
As futuristic as it may sound, there is a new skin blemish remedy called acne light treatment, also called Blue light therapy or Clearlight. This is mainly for acne patients who have had little success with other treatments. This amazing therapy focuses on destroying the bacteria that causes most forms of acne, propionibacterium acnes (P. acnes). P. Acnes creates the small molecules known as porphyrins that in turn help produce the bacterium that causes most types of acne inflammation. Blue light therapy works by homing in on the porphyrins. Strangely enough, porphyrins that are ex... (read more)
Author: velencia foo
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13. Acne Skin Care Treatment Products
January 12, 2010
When trying to treat acne there is a multitude of Acne skin care treatment products. Some work by the edition of vitamins A or E, or both. While some of these products seem to work well others may make the problem worse. There are some things that you can do to help prevent an out break of acne. Number one what acne you have do not pinch the heads of the pimples as all your doing is making this area all red and blotchy, as well as possible spreading of any bacterium that is in the pus of those pimples. Spreading just makes matters worse.
Another thing you can do is not to have any... (read more)
Author: kathy chang
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14. Acne or Rosacea?
January 12, 2010
Skin conditions : acne or rosacea ?
Acne is caused by inflammation and blockage of the sebaceous glands and hair follicles. The bacterium involved is propionibacterium acnes. The familiar appearance is of whiteheads and blackheads on the skin. The resulting rash is often embarrassing to teenagers and young adults.
The appearance of acne vulgaris is known too - red popular lesions, pustules and blackheads. Located particularly on forehead, nose chin and beard area but any part of the face can be affected. It affects teens and usually clears but can persist into adulthood.... (read more)
Author: wendy leong
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15. Acne Disaster
January 12, 2010
Acne Vulgaris is an inflammatory disease of the skin caused by the bacterium Propionibacterium acnes. The bacterium is an aerotolerant, nonsporeforming, slow growing anaerobic gram positive bacterium that is linked to the skin condition acne. It can also cause chronic blepharitis and endophthalmitis, the latter particularly following intraocular surgery. Acne lesions are called 'pimples' in laymen language.These pimples may range from dark brown to reddish brown due to oxidation of keratin or even red color in fairer people.The bacteria thrive on oil secreated by the sebaceous glands w... (read more)
Author: wendy leong
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16. Immune System
January 12, 2010
THE IMMUNE SYSTEM is a complex and highly developed system, yet its mission is simple: to seek and kill invaders. If a person is born with a severely defective immune system, death from infection by a virus, bacterium, fungus or parasite will occur. In severe combined immunodeficiency, lack of an enzyme means that toxic waste builds up inside immune system cells, killing them and thus devastating the immune system.
A lack of immune system cells is also the basis for DiGeorge syndrome: improper development of the thymus gland means that T cell production is diminished. Most other immune... (read more)
Author: Cherie Ang
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17. Natural remedies for yeast infection
January 12, 2010
Yeast infection can be naturally cured by using products like oils, spices and vegetables etc. that are easily available in the kitchen. The medicinal properties present in these products help get rid of the infection without any side affects.
In case of occurrences of yeast infection in the past it is better to take preventive measures. Yeast infection is nothing but the overgrowth of the naturally growing bacterium known as Candida. All that this bacterium needs to grow is a warm moist climate and excess sugar.
To prevent its occurrence loose comfortable clothing and preferably c... (read more)
Author: Christine Bowers
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18. Oregano Oil - The Smart Way to Get Free From Urinary Infection
January 11, 2010
Are you suffering from serious urinary infection, Pseudomonas Aerugiosa or Escherichia? If several doctors have failed to cure you and all your experiences make your life wrecked, then don’t get too much stressed. Use oregano oil and make yourself free from this pain. Oregano oil is considered as one of the best remedies to combat urinary infections. The researchers have proved that Oregano oil totally removes the infection in your urinary tract and washes out the germs through urine. It kills the bacterium in the most smart manner so that other useful bacteria don't get affected by it. ... (read more)
Author: Tamim Ahmad
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19. Acne - It's More Than Just A Bacterial Infection
January 04, 2010
Propionibacterium acne, better known as P. acnes, is the bacteria associated with the lesions better known as Acne Vulgaris (common acne). The bacterium itself has been the main focus of many treatments, and many therapies ranging from drugs, to topical medications, to ultraviolet light have been used to combat its growth. It is a naturally occurring bacterium that lives on the skin of most people and at normal levels presents little problem.
Medical science has presented us with a somewhat conflicting and incomplete view of the disease, and how it forms. To treat acne we are ... (read more)
Author: kathy chang
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20. Tips on MRSA Symptoms
January 04, 2010
MRSA, or methicillin-resistant Staphylococcus aureus, is a bacterium that can cause serious infections. The seriousness of its infection increases due to the fact that it is resistant to numerous antibiotics of the beta-lactam family, including methicillin and penicillin. Infections with This bacterium are most common in hospitals and other health-care institutions, where they are more prone to strike older people, those who are very ill, or where there are people with a weakened immune system. In health-care settings, MRSA is a frequent cause of surgical wound infections, urinary tract infe... (read more)
Author: Chris Cornell
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21. The Super Bug: MRSA and its Symptoms
January 04, 2010
MRSA is an abbreviation for methicillin-resistant Staphylococcus aureus bacteria. This bacterium is known to cause skin infections along with many other types of infections. MRSA is called a "super bug" because the infections caused by this organism are resistant to many common antibiotics like the ones belonging to the beta-lactam family, including methicillin and penicillin. MRSA belongs to the large group of bacteria known as Staphylococci, often referred to as Staph. The symptoms of MRSA infection depend on the part of the body that has been infected. It generally appears as a skin infec... (read more)
Author: Chris Cornell
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22. How to Recognize MRSA Symptoms
January 04, 2010
MRSA or Methicillin-resistant Staphylococcus aureus is a bacterium which can cause infection in your body. MRSA is a rare staph infection. In fact, approximately 20-30% of healthy people are staph carriers. This bacterium is resistant to many antibiotics including penicillin. MRSA symptoms if not dealt with properly can be deadly in extreme cases. Many people mistake it for a spider bite of skin infection and tend to ignore it. So how can you recognize MRSA symptoms? Here are a few guidelines. 1. Skin Infection – look out for any skin infection which appears like a spider bite. Your skin mig... (read more)
Author: Chris Cornell
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23. Acne - How To Use Antibiotics Effectively?
January 03, 2010
Acne is inflamed because of infection by bacteria P. acnes. This bacterium infects the sebum and rapidly multiplies inside the gland. Because of infection, the glands get inflamed. To stop this infection and treat it antibiotics are used. Antibiotics work by selectively killing the bacteria. They do not cause damage to the cells of the body. By killing the bacteria antibiotics reduce the infection and inflammation. You have the choice to use topical or oral antibiotics. Let us list the advantages and disadvantages of both.
1. Oral antibiotics act quickly compared to topical. ... (read more)
Author: iverson yeong
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24. Acne, Medicine, Information and Cure
January 03, 2010
Plugged follicles can take the form of either whiteheads, where the plugged follicle remains beneath the skin's surface, or blackheads, where the plug in the follicle extends to the skin's surface and becomes visible. Once a follicle becomes plugged, it creates an ideal environment for a common sebum-eating skin bacterium, Propionibacterium acnes (or just P. Acnes), to multiply. This bacterium produces enzymes and chemicals that irritate and inflame the skin around a clogged follicle. Pimples, breakouts, or zits are common names for the lesions that result from this type of skin irrita... (read more)
Author: velencia foo
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25. Acne - Medicine, Information and Cure
January 03, 2010
Plugged follicles can take the form of either whiteheads, where the plugged follicle remains beneath the skin’s surface, or blackheads, where the plug in the follicle extends to the skin’s surface and becomes visible. Once a follicle becomes plugged, it creates an ideal environment for a common sebum-eating skin bacterium, Propionibacterium acnes (or just P. Acnes), to multiply. This bacterium produces enzymes and chemicals that irritate and inflame the skin around a clogged follicle. Pimples, breakouts, or zits are common names for the lesions that result from this type of skin ir... (read more)
Author: xenia tan
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