Bacteria News and Research

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Low carb diets lower levels of good bacteria in gut

Scientists at Aberdeen's Rowett Research Institute have shown that a very low carbohydrate weight-loss diet results in a four-fold reduction in the numbers of certain types of bacteria in the gut of obese men.

20 Jun 2007

Acquired DNA key to certain bacterial infection

Researchers announced this week the discovery of a mechanism by which Mycobacterium avium - a bacterium which can result in serious lung infections and is prevalent in emphysema and AIDS patients among others - infects tissue cells or macrophages and thus compromises the body's immunity.

19 Jun 2007

Women infected with bacteria known to cause periodontal disease more likely to have more severe oral bone loss

A study conducted in a large sample of postmenopausal women by University at Buffalo epidemiologists has provided new information on the prevalence of certain gum-disease-causing oral bacteria in this population and the association of the bacteria with oral bone loss.

19 Jun 2007

Low carb diets may increase the risk for bowel cancer

Researchers in the UK are suggesting that low-carbohydrate diets such as the Atkins diet may increase a persons risk of developing bowel cancer.

19 Jun 2007

Better understanding of how the body fights off mucosal pathogens

In a finding that could have important implications for HIV vaccine research, new research at Weill Cornell Medical College illuminates the ways in which the body prevents its mucosal surfaces from being overwhelmed by bacteria.

17 Jun 2007

Starving Listeria bug of oxygen makes it turn nasty

If the Listeria monocytogenes bacteria behind food poisoning are starved of oxygen, they are liable to turn really nasty according to research published in the online journal BMC Microbiology.

17 Jun 2007

New understanding of how Staphylococcus aureus hides

A major cause of human and animal infections, Staphylococcus aureus bacteria may evade the immune system" defences and dodge antibiotics by climbing into our cells and then lying low to avoid detection.

17 Jun 2007

Biologists unravel genetic secrets of the silk of spiders

Biologists at the University of California, Riverside have identified the genes, and determined the DNA sequences, for two key proteins in the dragline silk of the black widow spider an advance that may lead to a variety of new materials for industrial, medical and military uses.

16 Jun 2007

Periodontal diseases are a threat to women of all ages

Two new studies in the June issue of the Journal of Periodontology (JOP) suggest that periodontal diseases are a threat to women of all ages due to hormonal fluctuations that occur at various stages of their lives.

15 Jun 2007

Double-duty nanoparticles overcome drug resistance in tumors

Cancer cells, like bacteria, can develop resistance to drug therapy. In fact, research suggests strongly that multidrug resistant cancer cells that remain alive after chemotherapy are responsible for the reappearance of tumors and the poor prognosis for patients whose cancer recurs.

14 Jun 2007

Best way to prevent contamination of fresh produce is to intervene before the harvest

Monitoring vegetables while they are growing is crucial in the prevention of contamination of fresh produce with harmful bacteria such as E. coli and Salmonella, say plant pathologists who are members of The American Phytopathological Society (APS).

14 Jun 2007

Petting zoos have potential health risks that are not always properly addressed

A new study shows that simple guidelines to protect petting zoo patrons from disease-causing germs found in the zoo are frequently not followed, thus allowing the risks of contracting serious intestinal illnesses to persist.

14 Jun 2007

Babies given antibiotics more likely to develop asthma

Canadian researchers are suggesting that children who receive antibiotics as infants have a greater risk of developing asthma by the age of 7, than those children not given antibiotics.

12 Jun 2007

Latest food scare leaves U.S. consumers wondering just how safe their food is

The latest food scare over beef possibly contaminated with E. coli, has left many consumers in the U.S. wondering just how safe the food they buy really is.

11 Jun 2007

Latest food scare leaves U.S. consumers wondering just how safe their food is?

The latest food scare over beef possibly contaminated with E. coli, has left many consumers in the U.S. wondering just how safe the food they buy really is.

11 Jun 2007

Discovery of new survival mechanism in common bacteria

Researchers at the National Institute of Allergy and Infectious Diseases (NIAID), a component of the National Institutes of Health, have discovered a survival mechanism in a common type of bacteria that can cause illness.

8 Jun 2007

New bacterium discovered, Bartonella rochalimae

A close cousin of the bacterium that debilitated thousands of World War I soldiers has been isolated at UCSF from a patient who had been on an international vacation.

8 Jun 2007

Largest ever genetics study of common diseases

The Wellcome Trust Case Control Consortium, the largest ever study of the genetics behind common diseases such as diabetes, rheumatoid arthritis and coronary heart disease, publishes its results in the journals Nature and Nature Genetics.

8 Jun 2007

Researchers track how spores break out of dormant state

Tapping into the unknown world of awakening dormant bacterial spores, researchers have revealed through atomic force microscopy (AFM) the alterations of spore coat and germ cell wall that accompany the transformation from a spore to a vegetative cell.

5 Jun 2007

TB test offers patients quicker and easier diagnosis

A new test for diagnosing TB offers a quick and simple alternative to existing three-day methods, according to research published in the journal Clinical Infectious Diseases.

5 Jun 2007