Wednesday, February 22, 2012

Cold and flu are caused by viruses, not ...

Development of resistance


first step towards the emergence of resistance to genetic changes in bacteria. There are two ways that can happen. A. Spontaneous >> << mutations in the DNA in bacteria. Many antibiotics work strattera price



main inactivating bacterial proteins. Genetic changes may


remove the protein. In addition, mutations in the



target protein can prevent the antibiotic from binding, or if really connected, avoid


inactivation of protein targets. increased production of the target enzyme of antibiotics, so that too many of us


and antibiotics may not inactivate all of them. In addition, the bacteria can cause >>


gram positive bacteria stain



<< antibiotic inactivating enzyme. In addition, bacteria can alter


permeability of cell membranes or walls to the antibiotic. 2. Transfer


antibiotic-resistant genes


antibiotic-resistant genes to transfer from one bacterium to another bacterium. Microbiologist, Dr. John


Turnidge, said that they literally take their resistance genes to neighboring << error. They >> original forms of life almost, and for thousands


million years they could develop ways to survive


and one of them is to borrow genes from other bacteria to survive. How does resistance


distribution? Antibiotic resistance


inevitable consequence of [antibiotic] ​​use the more


you use them more resistance you get. Says an associate professor


Collignon. Also >> << transfer resistance genes to antibiotics directly from one bacterium to another


, resistance also extends through


bacteria from one host to another, directly or indirectly, for >> << For example, through food, water or even contact between animals - including humans


. Antibiotics as


herbicides and pesticides,


. to antibiotic-resistant bacteria. When antibiotics are attacks certain


bacterial infection is always a chance that within >> << population of bacteria will be some members of the resistance. Those not killed now >> << are free to multiply without competition from susceptible strains


Antibiotics can also kill beneficial bacteria that



otherwise compete with the resistant strain on resources. And do


worse, antibiotics may also increase resistance


arising in harmless bacteria that may at


certain conditions, such as immune suppressed patient became aggressive and


cause infection . Only the presence of antibiotic-resistant bacteria >> << are harmful or not, increases the likelihood of resistance while


transferred to other bacteria. Resistance


is a natural phenomenon, perhaps as old as most bacteria. However,


, we have contributed to increasing rates of antibiotic resistance >> << by expanding transmission and abuse and misuse of antibiotics


. Australia


is one of the highest users of antibiotics in the world. Is


total more than 22 doses of antibiotics offered a thousand people


every day. Unlike other developed countries of Australia was


declined since 1994, when doctors wrote 26. 1000000 antibiotics. By 1998, fell to 24 million prescriptions for


Australia 16 million people. The U.S.


believed that 50 million of 250 million issued annually


antibiotics are not needed. Dr John Turnidge, Chairman


Australia, says he believes


Australian medicine can safely reduce antibiotic use in half. What


do not need recipes? Antibiotics


proposed treatment or cold or 'flu most obvious case.


Cold and flu are caused by viruses, not bacteria, so


does not affect the use of antibiotics. Nearly 30 percent of the


Australian recipes of the most popular antibiotic amoxicillin,


related to upper respiratory tract infection, where the cause is likely to be


virus. Appointment of antibiotics or >> << prevention and treatment of bacterial infections, minor also may need. The risk of resistance >> << believed that being raised by patients completed >> << full course of antibiotics. Often patients stop treatment >> << when they start to feel better. By not carrying out the full course of antibiotics


bacterial infection can not be completely destroyed,


situation that can result in resistant strains that can be difficult to treat


in the future. We


tend to look for antibiotics as just another product that needs


done and can be used as cheaper. But antibiotics are different. They are non-renewable resources - the more you use them, the less they << >> Last, says Associate Professor Collignon. . << >>

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