antibiotics

Bioartificial kidney under study at MCG

...reduce blood flow to the kidneys. Ironically, some antibiotics patients need for these infections also can harm t...ction can be toxic. "I have seen healthy people on antibiotics for urinary tract infections develop renal failure; that's not uncommon, but it's most dreaded in th...

Protein discovery could unlock the secret to better TB treatment

...ake-up' all dormant bacteria in a patient allowing antibiotics to kill the bacteria and cure the disease." The team includes Prof Brian Henderson at the UCL Eastman Dental Institute, Nicholas Keep from Birkbeck, University of London, and John Ward at UCL as well as researchers from INSERM Montpellier. ...

Bacteria collection sheds light on urinary tract infections

... practice of administering subtherapeutic doses of antibiotics as growth promoters in animals. E.coli is common bacteria found in humans and animals. Thousands of E.coli live in the organs of humans and animals and provide multiple benefits such as aiding in digestion of certain nutrients. However, E.coli is al...

Learning to fight an adversary that won't stay down

...cinated Davies since he began postdoctoral work on antibiotics and resistance mechanisms at Harvard Medical Schoo...sistance. "There are a relatively small number of antibiotics that have come out that are new, and some of them are very potent and act against most resistant str...

Scientists find missing enzyme for tuberculosis iron scavenging pathway

...ght to be involved in resistance to aminoglycoside antibiotics such as streptomycin. "The aminoglycoside antibiotics have sugar rings with amino groups attached," explains Dr. Baker. "The N-acetyltransferase chemicall...

A bacterial genome reveals new targets to combat infectious disease

... host nematode that apparently eradicating it with antibiotics severely compromises the nematode's ability to complete its life cycle within its human host. Thus, understanding the details of this relationship may help identify new strategies for controlling diseases caused by filarial nematodes. In a new study ...

Study Models Impact Of Anthrax Vaccine

Rapidly distributing antibiotics to peopleexposed to anthrax spores during a bioter... days. Prevention rates dropped below 50percent if antibiotics were delayed more than 10 days. In 2001, somepostal workers did not begin taking antibiotics until 9...

Drug-resistant bacteria on poultry products differ by brand

...d in U.S. supermarkets from food producers who use antibiotics and from those who claim they do not. The study fo...tives. "Our use of medically important classes of antibiotics in food-animal production creates a significant public health concern," said the study's lead author...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

...is likely to work and which dose is best could get antibiotics to market faster and more cheaply, say University ...antibiotic arsenal. Yet designing and testing new antibiotics can be a maddeningly slow and costly process ?if pharmaceutical companies even bother, says Hartmut ...

Researchers make gains in understanding antibiotic resistance

...e findings are already leading to new experimental antibiotics that are being engineered to circumvent resistance...ctural basis of bacterial resistance to a group of antibiotics that, while chemically quite different, all jam the activity of the protein-making factory in bacter...

Measuring hormone cuts antibiotic use in half in pneumonia patients

...the number of days pneumonia patients have to take antibiotics to cure their infection, according to a study to b...s measured during the course of their illness took antibiotics an average of 6 days, compared with 12 days for patients whose procalcitonin levels were not measure...

Protein Discovery Could Unlock The Secret To Better TB Treatment

...ake-up' all dormant bacteria in a patient allowing antibiotics to kill the bacteria and cure the disease." The team includes Prof Brian Henderson at the UCL Eastman Dental Institute, Nicholas Keep from Birkbeck, University of London, and John Ward at UCL as well as researchers from INSERM Montpellier. ...

Symbiotic bacteria protect hunting wasps from fungal infestation

... important group of bacteria for the production of antibiotics for human medicine. Female beewolves provision th...val survival ?suggesting that the bacteria produce antibiotics that work against pathogenic fungi. These findings broaden our understanding of the evolution and fu...

New strategies to reduce hospital-aquired infections

...nly used water treatment methods as well as to the antibiotics used for treating infected patients. Further complicating the problem, some of these harmful pathogens are also protected by amoeba that are resistant to chlorination, temperature and osmotic pressure. The amoeba acts as a "Trojan Horse" harboring an...

Distributed Basic Local Alignment Search Toolkit (W.ND-BLAST)

...nly used water treatment methods as well as to the antibiotics used for treating infected patients. Further complicating the problem, some of these harmful pathogens are also protected by amoeba that are resistant to chlorination, temperature and osmotic pressure. The amoeba acts as a "Trojan Horse" harboring an...

To Stop Evolution: New Way Of Fighting Antibiotic Resistance Demonstrated By Scripps Scientists

...bacteria unable to evolve resistance to the common antibiotics ciprofloxacin and rifampicin. "If you inhibit thi...of many other pandemic bacterial infections. These antibiotics are basically natural chemicals (or derivatives of natural chemicals) produced by other bacteria or ...

Chemical Engineer Kao Explores Antibiotic Synthesis With DNA Chips

... chemist can synthesize. Bacteria normally produce antibiotics to inhibit other bacterial strains competing for resources. Pharmaceutical companies exploit this property to manufacture drugs, but the process of cultivating bacteria is slow and costly. By hijacking molecular synthesis with the latest advances in ...

New book explains antibiotic resistance for a broad audience

...tionship with antibiotics. They love the fact that antibiotics work most of the time and work quickly with few si...more and more physicians are refusing to prescribe antibiotics for flu and that patients are being blamed for demanding antibiotics when they shouldn't," says Abig...

Experiment station researchers to explore genome of disease-fighting fungus

... the genes that might be responsible for producing antibiotics and potentially discover novel antibiotics used in therapy for humans or animals. "We know some of the genes responsible for known antibiotics...

Community MRSA is re-emergence of 1950s pandemic, study suggests

... are resistant to treatment by powerful meticillin antibiotics - may have evolved from this earlier pandemic-caus...er 80/81 type, developing resistance to meticillin antibiotics over the last 30-40 years, possibly through several intermediate steps. "At the time of the 1950s p...

Studies reveal how plague disables immune system, and how to exploit the process to make a vaccine

... 100 percent of those who do not receive the right antibiotics soon after exposure. "There is," the authors note, "an urgent need for vaccine development." One of this microbe's enduring mysteries has been how it gains a foothold in the host without triggering a protective immune response. In the Science Expres...

Immune system's distress signal tells bacteria when to strike back

... sophisticated mutual espionage. The discovery of antibiotics gave human hosts a temporary advantage, "but that seems to be waning a bit," he added. "We need to learn new ways to understand our germs and think about how to placate rather than annihilate them." ...

Research on antibiotics receives historical recognition

...sman, Ph.D., and his students began the search for antibiotics produced from actinomycetes, microbes in the soil ...bubonic plague and other diseases. Among the other antibiotics isolated in Waksman's laboratory was neomycin, still used as a topical antibacterial agent. William...

New study: Sexually transmitted disease treatment can be effectively administered by sex partners

...A new study shows that providing infected men with antibiotics to give their partners is more effective than traditional means of contacting and treating the partners, according to an article in the Sept. 1 issue of Clinical Infectious Diseases, now available online. Men with chlamydia or gonorrhea were more lik...

Measurement Challenges In Detecting Cancer Biomarkers

...A new study shows that providing infected men with antibiotics to give their partners is more effective than traditional means of contacting and treating the partners, according to an article in the Sept. 1 issue of Clinical Infectious Diseases, now available online. Men with chlamydia or gonorrhea were more lik...

New Finding May Aid Adult Stem Cell Collection

...A new study shows that providing infected men with antibiotics to give their partners is more effective than traditional means of contacting and treating the partners, according to an article in the Sept. 1 issue of Clinical Infectious Diseases, now available online. Men with chlamydia or gonorrhea were more lik...

Two studies document rise of superbugs in the environment

...ng-term care facility, being 65 or older or taking antibiotics for two or more weeks were all factors that increa...nfection with an MDR bacteria resistant to all the antibiotics currently available." ...

Bioinformatics reveals new gene regulation system

...n to human medicine, Gelfand pointed out that many antibiotics work by attacking the process of bacterial DNA replication. So, he said, this work has identified potential targets for designing new antibiotic drugs. But more importantly, the work shows how molecular discoveries of whole regulatory systems can be ...

Anthrax inhibitors identified by Burnham team

...nosis is made at an early stage of infection, when antibiotics such as Ciprofloxacin can provide a complete cure. At late stages in the disease, antibiotics can kill the anthrax bacteria, but do not affect LF secreted by the bacteria, which is sufficiently ...

Bacteria use host's immune response to their competitive advantage

...," says Weiser. The findings also demonstrate how antibiotics and vaccines that target one microbe might inadvertently alter the competitive interactions among other species present. ### Citation: Lysenko ES, Ratner AJ, Nelson AL, Weiser JN (2005) The role of innate immune responses in the outcome of interspe...

Doctors should stop prescribing antibiotics for the common cold, review advises

...implications for practice are that prescription of antibiotics should not be given in the first instance as they ...are caused by viruses and not bacteria, upon which antibiotics act, yet, says Arroll, "There is evidence of high usage of antibiotics for the common cold in spite ...

Promiscuous Catalytic Activity Possessed by Novel Enzyme Structure

...or in other plants act as sunscreens, pigments, or antibiotics ?to olivetol, a component in the production of THC, the active ingredient of marijuana. Unlike other previously known prenylation enzymes that only act on a small number of molecules, this new enzyme was able to attach prenyl groups to most of the di...

Stem cell training program to make its Stanford debut

...or in other plants act as sunscreens, pigments, or antibiotics ?to olivetol, a component in the production of THC, the active ingredient of marijuana. Unlike other previously known prenylation enzymes that only act on a small number of molecules, this new enzyme was able to attach prenyl groups to most of the di...

Researchers uncover E. coli's defense mechanism

...erfere with the mechanism, it could lead to better antibiotics and better treatments," said Spiro. ...

Scientists devise way to measure RNA synthesis on the fly in a live cell

... on in a living bacterium as it becomes exposed to antibiotics and other changes in its environment. The technique, which is announced in the Monday, June 13 issue of the Proceedings of the National Academy of Sciences, could help scientists discover new drugs and learn to what extent some RNA molecules help co...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...eat some viral infections and there are definitely antibiotics to treat bacteria. Yet current detection tests tak...of antibiotics: Currently, doctors often prescribe antibiotics for respiratory illnesses. However, antibiotics combat respiratory illness caused by bacteria and ar...

Gaining ground in the race against antibiotic resistance

...ectious bacteria, as scientists try to develop new antibiotics faster than the bacteria can evolve new resistance...l enzyme that renders penicillin and cephalosporin antibiotics useless. The results could lead to more effective enzyme inhibitors by giving drug designers a sneak...

Gene for immune deficiency syndromes found

... Geha adds. "For the time being, it's prophylactic antibiotics or IV immunoglobulin infusions every three weeks," he says. Geha's team previously demonstrated that TACI binds to two other proteins made by cells in the respiratory and gastrointestinal lining, known as APRIL and BAFF, to trigger the signal for B ...

Protein amplification in melanoma is possible drug target

... Geha adds. "For the time being, it's prophylactic antibiotics or IV immunoglobulin infusions every three weeks," he says. Geha's team previously demonstrated that TACI binds to two other proteins made by cells in the respiratory and gastrointestinal lining, known as APRIL and BAFF, to trigger the signal for B ...

Researchers find how some antibiotics kill bacteria

...rchers have uncovered how members of one family of antibiotics kill bacteria that make people sick. This new kno... help drug developers make slight changes to these antibiotics to make them more effective against drug-resistant strains of bacteria, said Irina Artsimovitch, a s...

Einstein researchers identify new way that bacteria develop resistance to antibiotics

...rculosis may soon be able to resist the effects of antibiotics known as fluoroquinolones. The finding explains wh... Science. Fluoroquinolones, an important class of antibiotics that includes ciprofloxacin (Cipro), work against TB by interfering with the microbe's ability to re...

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...se, which can be effectively treated with specific antibiotics if caught early. "Rocky Mountain spotted fever is a dangerous and potentially fatal disease, unlike its more widespread cousin, Lyme disease, which is almost never fatal," he says. In the latest study, researchers at the U.S. Centers for Disease Con...

Agricultural antibiotic use contributes to 'super-bugs' in humans

...ional medical journal PLoS Medicine, is the use of antibiotics in agriculture. "Evidence suggests that antibioti...mark and then the European Union banned the use of antibiotics for growth promotion, say the authors, the prevalence of resistant bacteria declined in farm animals...

UW-Madison scientists zero in on drugs' sweet spots

...ferent drug classes. It's possible to extend it to antibiotics and antivirals. If you want to plug in a sugar and see what it does for you, this is the best way to do it." The new technique, according to Thorson, will play a prominent role in the new UW-Madison National Cooperative Drug Discovery Group, a conso...

DDT-resistant insects have additional genetic advantage that helps resistance spread

...e going on when doctors across the world prescribe antibiotics to cure infections. Antibiotic resistance may pote... bacteria, and measures such as preventing certain antibiotics from being prescribed may not halt the spread of antibiotic resistance in bacteria. "We found that ...

Study findings offer potential new targets for antibiotics

...y residing inside most cells. Many currently used antibiotics alter a ribosome's ability to make proteins, said ...may be additional places in a ribosome that future antibiotics could affect, places that current antibiotics don't currently target. The researchers were right. ...

Defective Gene Linked to Two Inherited Immune Deficiencies

...time being, therapy still consists of prophylactic antibiotics or intravenous immunoglobulin infusions every three weeks,?he says. ...

Agreement will speed research on microbicides for women

...time being, therapy still consists of prophylactic antibiotics or intravenous immunoglobulin infusions every three weeks,?he says. ...

Biologists Crack Genetic Code for Specialized Spider Silk

...time being, therapy still consists of prophylactic antibiotics or intravenous immunoglobulin infusions every three weeks,?he says. ...

New antibody shows promise as cure for anthrax

...ends against inhalation anthrax without the use of antibiotics and other more expensive antibodies. The high-aff...at we have found is that you may not even need the antibiotics to beat anthrax," says Iverson, professor of chemistry. He says that the new treatment "looks promis...

Emerging staph strains found to be increasingly deadly and deceptive

...t survive treatment with the methicillin family of antibiotics can evade immune defenses. Infections from community-acquired methicillin-resistant S. aureus, or MRSA, are difficult to treat and are increasing nationally at an alarming rate, say experts. Scientists at NIAID's Rocky Mountain Laboratories (RML) in...

Reducing antibiotic use lowers rates of drug-resistant bacteria

...cription-reduction method involved not prescribing antibiotics for respiratory tract infections that were thought to be viral, since antibiotics work against bacteria, not viruses. The dose/duration method involved using only recommended doses o...

Small molecule inhibitor of cholera discovered

...ic against the cholera bacteria. While traditional antibiotics kill bacteria outright by interfering with processes essential for their survival, the new agent blocks production of bacterial proteins that cause the severe diarrhea associated with Vibrio cholerae infection. "What we have done is made a custom, ...

Penicillin, amoxicillin: Step aside for strep throat treatment

...n't doing the job and aren't as effective as newer antibiotics known as cephalosporins. In results presented toda...nfections, doctors try to preserve their strongest antibiotics for the most severe cases. But most doctors would view a drug that fails in one out of four patients...

How Rickettsial pathogens break into cells

...ck. The symptoms are generally mild and respond to antibiotics that shorten the course of the disease. But serious complications occur as much as 10 percent of the time, usually in patients who are elderly or who have some other underlying disease. Left untreated, Mediterranean spotted fever can be deadly. Coss...

Children overprescribed antibiotics for sore throat

Physicians prescribe antibiotics for more than half of children with sore throat, e...revalence of strep throat, and used nonrecommended antibiotics for 27 percent of children who received an antibiotic prescription, according to a study in the Nove...

'Good' bacteria could save patients from infection infection by deadlier ones

...t be that the stress on the use of antiseptics and antibiotics in hospitals is actually putting patients at a gre... College of Surgeons of England that the stress on antibiotics and scrubbing with antiseptic soap may actually open an avenue for the more virulent forms of bacter...

Picking particles faster than one at a time

...derstanding structure is often the key to devising antibiotics and other therapies that can interfere with unwanted biological activity -- for example, the ability of infectious bacteria to synthesize proteins can be wrecked by jamming their ribosomes, if the ribosome structure is known in detail. Single-particl...

UCSD study finds anthrax toxins also harmful to fruit flies

...Guichard said. "Anthrax infections can be cured by antibiotics when detected early. But after a certain point, the toxins released in the bloodstream can kill the patient even after antibiotic treatment. The more we understand about how the toxins function, the better we'll be able to design effective co-operati...

MRSA use amoeba to spread, new research shows

...RSA may emerge more virulent and more resistant to antibiotics when it infects humans. "Infection control polici...gens that emerge from amoeba are more resistant to antibiotics and more virulent. "This makes matters even more worrying," said Professor Brown. "It is almost a...