American Society for Microbiology Journals tipsheet: September 2002

September 18, 2002

Egg Yolk a Possible Alternative to Antibiotic Treatment of Ulcers

Antibodies from the egg yolks of immunized chickens may be an effective alternative to antibiotic treatment of Helicobacter pylori infections say Korean researchers in the September 2002 issue of the journal of Clinical and Diagnostic Laboratory Immunology.

In the study antibodies were extracted from egg yolks of immunized chickens and administered orally to Mongolian gerbils infected with H. pylori. The gerbils were then examined to determine if the antibodies were effective in decreasing damage to the stomach wall.

"The encouraging results of this study indicate that the immunoglobulin obtained from hens immunized by H. pylori may provide a novel approach to the management of H. pylori infections in humans."

(J.-H. Shin, M. Yang, S.W. Nam, J.T. Kim, N.A. Myung, W.-G. Bang, I.H. Roe. 2002. Use of egg yolk-derived immunoglobulin as an alternative to antibiotic treatment for control of Helicobacter pylori infection. Clinical and Diagnostic Laboratory Immunology, 9: 1061-1066.)

***************************************

BACTERIA WORK WITH DIET IN HEART DISEASE

Infection with the bacteria Chlamydia pneumoniae alone is not sufficient to induce athersclerosis but must act in concert with an already existing high-fat, high-cholesterol diet, say researchers from the University of Washington. They report their findings in the September 2002 issue of the journal Infection and Immunity.

Previous studies have found that mice fed a high-fat, high cholesterol diet at the same time as infection experienced atherosclerotic lesions 3 times larger than uninfected mice. In this study the researchers initiated the high-fat, high cholesterol diet in the mice several weeks after infection with C. pneumoniae. They found no significant difference in atherosclerotic lesion formation in the infected mice versus the control mice.

"The present study further supports the hypothesis that C. pneumoniae is not an independent risk factor but acts in concert with hyperlipidemia to exacerbate atherosclerotic lesion formation," say the researchers.

(E. Blessing, L.A. Campbell, M.E. Rosenfeld, C.-C. Kuo. 2002. Chlamydia pneumoniae and hyperlipidemia are co-risk factors for atherosclerosis: Infection prior to induction of hyperlipidemia does not accelerate development of atherosclerotic lesions in C57BL/6J mice. Infection and Immunity, 70: 5332-5334.)

***************************************

CHEWING TOBACCO CONTAMINATED WITH BACTERIA

Some brands of chewing tobacco are contaminated with bacteria that can damage cells lining the inside of the mouth, say researchers from the University of Illinois at Chicago. They report their findings in the September 2002 issue of the journal Clinical and Diagnostic Laboratory Immunology.

In the study, the researchers tested two popular brands of chewing tobacco and found them contaminated with five distinct species of Bacillus bacteria at relatively high levels. Additionally, they tested the effects of these bacteria on the cheek pouches of hamsters and found that they cause inflammation of the lining of the mouth.

"These data indicate that Bacillus species contaminate chewing tobacco commercially available in the United States and elaborate a potent exogenous virulence factor that injures the oral mucosa," say the researchers.

(I. Rubinstein and G.W. Pedersen. 2002. Bacillus species are present in chewing tobacco sold in the United States and evoke plasma exudation from the oral mucosa. Clinical and Diagnostic Laboratory Immunology, 9: 1057-1060.)
-end-


American Society for Microbiology

Related Bacteria Articles from Brightsurf:

Siblings can also differ from one another in bacteria
A research team from the University of Tübingen and the German Center for Infection Research (DZIF) is investigating how pathogens influence the immune response of their host with genetic variation.

How bacteria fertilize soya
Soya and clover have their very own fertiliser factories in their roots, where bacteria manufacture ammonium, which is crucial for plant growth.

Bacteria might help other bacteria to tolerate antibiotics better
A new paper by the Dynamical Systems Biology lab at UPF shows that the response by bacteria to antibiotics may depend on other species of bacteria they live with, in such a way that some bacteria may make others more tolerant to antibiotics.

Two-faced bacteria
The gut microbiome, which is a collection of numerous beneficial bacteria species, is key to our overall well-being and good health.

Microcensus in bacteria
Bacillus subtilis can determine proportions of different groups within a mixed population.

Right beneath the skin we all have the same bacteria
In the dermis skin layer, the same bacteria are found across age and gender.

Bacteria must be 'stressed out' to divide
Bacterial cell division is controlled by both enzymatic activity and mechanical forces, which work together to control its timing and location, a new study from EPFL finds.

How bees live with bacteria
More than 90 percent of all bee species are not organized in colonies, but fight their way through life alone.

The bacteria building your baby
Australian researchers have laid to rest a longstanding controversy: is the womb sterile?

Hopping bacteria
Scientists have long known that key models of bacterial movement in real-world conditions are flawed.

Read More: Bacteria News and Bacteria Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.