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Tag: "bacteria" at medical news

Scientists Equip Bacteria With Custom Chemo-Navigational System

...pecific chemicals in its environment. 'Equipping bacteria with a way to degrade pollutants, synthesize and r...can be used to equip other types of self-propelled bacteria with 'chemo-navigation' systems to move them toward desired targets. Chemotactic bacteria navigate...

Vitamin D may Be Helpful to Curb Tuberculosis

...e ability of the body to inhibit the growth of the bacteria causing the disease, reported online edition of BB...ria. The blood analysis showed the growth of the bacteria in the people who were given vitamin D was 20 percent less than the placebo group. The researchers...

Scientists Saying Against Trees Sparks Debate

... among biologists and atmospheric chemists. Though bacteria in soil or decaying matter produce methane in anaerobic conditions, there seems to be no reason or mechanism for living plants to emit the gas in an oxygen-rich environment. The implications of the findings are worrying: on a global scale, Keppler ...

Vitamin D Might Prevent Development of Active TB, Study Says

...ve been exposed to Mycobacterium tuberculosis, the bacteria that causes TB, according to a study recently published in the American Journal of Respiratory and Critical Care Medicine, the PA/Irish Examiner reports. Adrian Martineau of the Imperial College London and colleagues from Queen Mary's School of Med...

Health Experts Discuss Effect of DOTS on TB Control in India

...ine treatments after first-line drugs fail and the bacteria has had more time to develop resistance. IMA Secretary Ramesh Shah said that the incorrect use of antibiotics, interruptions in treatment regimens and inadequate DOTS monitoring are responsible for the spread of drug-resistant TB. "The recipe for s...

Scientists Develop Method to Track Immune System Enzyme in Live Animals

...s B cells encounter foreign antigens from viruses, bacteria or allergens, they migrate to germinal centers specialized microenvironments in tonsils, spleen and lymph nodes. Within germinal centers, B cells divide extensively and express the AID enzyme, which causes random mutations and recombination in the...

Deep-sea Mining can Damage Marine Ecosystem

... deep-sea environment, they support sulphur-loving bacteria and bizarre worm and clam species. As such, mining and other activities could irreversibly damage this fragile ecosystem. 'We need to act now to establish scientific and legal methods to protect these sensitive ecosystems and minimize the potential...

New Electro-chemical Biosensor to Check Food Contamination

...t used by the immune system to identify a virus or bacteria in the body. Specific antibodies for atrazine have been used (in the case of pesticides) and for sulphanilamide (in the case of identifying antibiotics). Once the antibodies hook onto the contaminating particles they are attracted to the surface of...

Toxic Substance in House Dust may Reduce Eczema Risks in Early Life

...d that a toxic substance, made by certain types of bacteria found in house dust, may reduce the risk of develo...the cell wall of gram-negative bacteria, a type of bacteria that repeatedly causes disease. Endotoxin is released when the bacteria dies or is damaged. The ne...

Flash-heating Inactivates HIV in Breast Milk: Study

...have shown that flash-heating breast milk can kill bacteria while retaining most of the milk's nutritional and...have shown that flash-heating breast milk can kill bacteria while retaining most of the milk's nutritional and antimicrobial properties, as well as a majority o...

Men With Chronic Gum Disease at Higher Risk of Tongue Cancer

...Researchers concluded that periodontal viruses and bacteria could be toxic to surrounding cells and produce changes that lead directly to oral cancer, or could indirectly contribute to cancer through inflammation. "We have presented preliminary data suggesting an independent association between history of p...

Experts to Develop New Weapons Against Food Poisoning

...naturally occurring agents that target and destroy bacteria with a high degree of efficiency, and do so select...ely and specifically, without affecting beneficial bacteria or gut cells. The term is commonly used in its shortened form, phage. Both GangaGen and The Univer...

Study on Bioactive Paper That can Detect Life Threatening Bacteria and Viruses

...tivate life-threatening food, air, and water-borne bacteria and viruses, like E-coli, salmonella and SARS. The low-cost and easy-to-use paper is laced with biologically active chemicals and can be used in manufacturing products like food packaging paper for detecting E. coli and salmonella in food, and hos...

Researchers Discover Starch Cocktail Fuel for green Car

...mes, normally found separately in plants, rabbits, bacteria and yeast, but never together in nature. According to Y-H Percival Zhang of Virginia Tech University, when the enzymes are added to starch and water, "they use the energy in the starch to break up water into CO2 and hydrogen". The CO2 is separat...

Understanding Why C. Difficile Causes Disease -- It's Hungry

...es disease have come to a simple conclusion -- the bacteria do it because they are starving. That just might h...consistent with the view that most disease-causing bacteria express their pathogenicity when they are hungry," says Abraham Sonenshein, professor at the Sackler...

How Plague-Causing Bacteria Disarm Host Defense

...otein called YpkA, one of several effectors of the bacteria Yersinia the pathogen responsible for the Middle ...ro. The genus Yersinia includes three species of bacteria that are pathogenic to humans: Y. pestis is perhaps the most infamous, being responsible for the bub...

Genome of Botulism Bacterium Revealed

...C. botulinum shows us one extreme of the ways that bacteria can make the most of animal hosts," explained Dr J... demonstrates the wide range of strategies used by bacteria to enhance their chances of survival. For the Clostridia, these range from the approach used by C. d...

Fecal Bacteria, a Source of Contamination

... of Nebraska streams had excessive levels of fecal bacteria . These water bodies were declared impaired by fed...x approach when investigating the sources of fecal bacteria within the Plum Creek watershed in south-central Nebraska. The scientists report their findings in t...

MRSA, the Super Bug Spreading to Urban Poor in US

..., and anal area. The foot is very prone to pick up bacteria from the floor. The infection often begins with a ... antibiotics. MRSA is hard to treat because the bacteria have developed resistance to the penicillin drug family. The antibiotic-resistant infections are m...

American Who Exposed Air Passengers to Drug Resistant TB Quarantined

...ith tuberculosis have no symptoms, AIDS allows the bacteria to overcome the patient's immune defenses more quickly. About two-thirds of those infected with XDR-TB die, the World Health Organization said in March. In February, the Geneva- based agency asked donor countries and organizations to give $650 millio...

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