PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Blueberry extract could help fight gum disease and reduce antibiotic use

2015-09-02
(Press-News.org) Gum disease is a common condition among adults that occurs when bacteria form biofilms or plaques on teeth, and consequently the gums become inflamed. Some severe cases, called periodontitis, call for antibiotics. But now scientists have discovered that wild blueberry extract could help prevent dental plaque formation. Their report in ACS' Journal of Agricultural and Food Chemistry could lead to a new therapy for periodontitis and a reduced need for antibiotics.

Many people have had some degree of gum inflammation, or gingivitis, caused by dental plaque. The gums get red and swollen, and they bleed easily. If left unchecked, the condition can progress to periodontitis. The plaque hardens into tartar, and the infection can spread below the gum line and destroy the tissue supporting the teeth. To treat this condition, dentists scrape off the tartar and sometimes have to resort to conventional antibiotics. But recently, researchers have started looking at natural antibacterial compounds to treat gum disease. Daniel Grenier and colleagues wanted to see if blueberry polyphenols, which work against foodborne pathogens, could also help fight Fusobacterium nucleatum, one of the main species of bacteria associated with periodontitis.

In the lab, the researchers tested extracts from the wild lowbush blueberry, Vaccinium angustifolium Ait., against F. nucleatum. The polyphenol-rich extracts successfully inhibited the growth of F. nucleatum, as well as its ability to form biofilms. It also blocked a molecular pathway involved in inflammation, a key part of gum disease. The researchers say they're developing an oral device that could slowly release the extract after deep cleaning to help treat periodontitis.

INFORMATION:

The authors acknowledge funding from the Laboratoire de Contrôle Microbiologique de l'Université Laval

The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 158,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact newsroom@acs.org.

Follow us: Twitter Facebook



ELSE PRESS RELEASES FROM THIS DATE:

Evidence that Earth's first mass extinction was caused by critters not catastrophe

2015-09-02
NASHVILLE, Tenn. - In the popular mind, mass extinctions are associated with catastrophic events, like giant meteorite impacts and volcanic super-eruptions. But the world's first known mass extinction, which took place about 540 million years ago, now appears to have had a more subtle cause: evolution itself. "People have been slow to recognize that biological organisms can also drive mass extinction," said Simon Darroch, assistant professor of earth and environmental sciences at Vanderbilt University. "But our comparative study of several communities of Ediacarans, ...

New study reveals how changes in lifestyle are contributing to dramatic rise in obesity

2015-09-02
New research from Royal Holloway, University of London has found that changes in lifestyle over the past 30 years have led to a sharp reduction in the strenuousness of daily life, which researchers say may explain why there has been a dramatic rise in obesity. The study, carried out by Dr Melanie Luhrmann from the Department of Economics along with Professor Rachel Griffith and Dr Rodrigo Lluberas, revealed that while obesity rates have almost trebled, surprisingly, our actual calorie intake has fallen by around 20 per cent compared to 30 years ago. The researchers found ...

Silk bio-ink could help advance tissue engineering with 3-D printers

2015-09-02
Advances in 3-D printing have led to new ways to make bone and some other relatively simple body parts that can be implanted in patients. But finding an ideal bio-ink has stalled progress toward printing more complex tissues with versatile functions -- tissues that can be loaded with pharmaceuticals, for example. Now scientists, reporting in the journal ACS Biomaterials Science & Engineering, have developed a silk-based ink that could open up new possibilities toward that goal. Most inks currently being developed for 3-D printing are made of thermoplastics, silicones, ...

Struggles ahead in China for chemical and pharmaceutical companies

2015-09-02
China's economic downturn plus other factors, including overcapacity and tightening regulations, mean the next two to three years could be challenging for the foreign chemical and pharmaceutical companies located there. To survive in China as it adjusts to a slower pace of growth, businesses will likewise need to adapt, reports Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society. Jean-François Tremblay, a senior correspondent at C&EN, notes that owing to reforms initiated in 1978, China has been a profitable place for chemical ...

Study provides insights into the mechanisms of fine-tuning of wheat to diverse environments

Study provides insights into the mechanisms of fine-tuning of wheat to diverse environments
2015-09-02
MANHATTAN, Kansas -- A Kansas State University wheat geneticist is part of a breakthrough study that identifies one of the wheat genes that controls response to low temperature exposure, a process called vernalization. Natural variation in vernalization genes defines when the plant begins to flower and is critical for adaptation to different environments. Researchers anticipate this will help wheat breeders design wheat varieties that can adapt and thrive in changing environments around the world. Eduard Akhunov, associate professor in the plant pathology department, ...

Men in China face increasing tobacco-related cancer risks

2015-09-02
In China, smoking now causes nearly a quarter of all cancers in adult males. The finding comes from a large study published early online in CANCER, a peer-reviewed journal of the American Cancer Society, as part of a Special Issue on Lung Cancer in China. High uptake rates of cigarette smoking in teenaged males and continued use in adulthood foreshadow even greater tobacco-related cancer risks for the nation. Tobacco-related deaths have been declining steadily in most developed countries; however, China now produces and consumes about 40 percent of the world's cigarettes, ...

The risk of cognitive impairment in children born prematurely may be predicted using MRI after birth

2015-09-02
School age children who are born prematurely are more likely to have low mathematical achievement, thought to be associated with reduced working memory and number skills, according to a new study published today in the neurology journal Brain. Researchers assessed up to 224 preterm children at age five and age seven to examine the use of magnetic resonance imaging (MRI) after birth to identify infants at risk of later academic impairment. The study participants are from Melbourne, Australia and are part of a Murdoch Children's Research Institute study. The authors suggest ...

Radioactive contaminants found in coal ash

Radioactive contaminants found in coal ash
2015-09-02
DURHAM, N.C. -- A new Duke University-led study has revealed the presence of radioactive contaminants in coal ash from all three major U.S. coal-producing basins. The study found that levels of radioactivity in the ash were up to five times higher than in normal soil, and up to 10 times higher than in the parent coal itself because of the way combustion concentrates radioactivity. The finding raises concerns about the environmental and human health risks posed by coal ash, which is currently unregulated and is stored in coal-fired power plants' holding ponds and landfills ...

Columbia Engineering team develops targeted drug delivery to lung

Columbia Engineering team develops targeted drug delivery to lung
2015-09-02
New York, NY--September 2, 2015--Researchers from Columbia Engineering and Columbia University Medical Center (CUMC) have developed a new method that can target delivery of very small volumes of drugs into the lung. Their approach, in which micro-liters of liquid containing a drug are instilled into the lung, distributed as a thin film in the predetermined region of the lung airway, and absorbed locally, may provide much more effective treatment of lung disease. The work was published in the August 31 online Early Edition of Proceedings of the National Academy of Sciences ...

Making fuel from light

2015-09-02
Refined by nature over a billion years, photosynthesis has given life to the planet, providing an environment suitable for the smallest, most primitive organism all the way to our own species. While scientists have been studying and mimicking the natural phenomenon in the laboratory for years, understanding how to replicate the chemical process behind it has largely remained a mystery -- until now. Recent experiments at the U.S. Department of Energy's Argonne National Laboratory have afforded researchers a greater understanding of how to manipulate photosynthesis, ...

LAST 30 PRESS RELEASES:

Diamond continues to shine: new properties discovered in diamond semiconductors

Researchers find the key to Artificial Intelligence’s learning power – an inbuilt, special kind of Occam’s razor

Genetic tweak optimizes drug-making cells by blocking buildup of toxic byproduct

University of Birmingham researchers awarded grant to tackle early-stage heart disease in chronic kidney disease

Researchers harness AI to predict cardiovascular risk from CT scans

Samsung takes top spot in U.S. patents for third year running while TSMC rises into second place; after four-year falloff, grants increase nearly 4%

HKU ecologist highlights critical gaps in global wildlife trade monitoring

Smoking may lead people to earn less

Hiroshima flooding: A case study of well usage and adaptive governance

New survey finds over half of Americans are unaware that bariatric surgery can improve fertility

World’s oldest 3D map discovered

Metabolomics-driven approaches for identifying therapeutic targets in drug discovery

Applications of ultrafast nano-spectroscopy and nano-imaging

Study links PFAS contamination of drinking water to a range of rare cancers

Scientists explain how a compound from sea sponge exerts its biological effects

Why older women are embracing the open road

Shift to less reliable ‘natural’ contraception methods among abortion patients over past 5 years

Tobacco advertising + sponsorship bans linked to 20% lower odds of smoking

Vascular ‘fingerprint’ at the back of the eye can accurately predict stroke risk

Circulation problems in the brain’s seat of memory linked to mild cognitive impairment in older adults

Oregon State receives $11.9 million from Defense Department to enhance health of armed forces

Leading cancer clinician, researcher Dr. Jenny Chang to lead Houston Methodist Academic Institute

Engineering quantum entanglement at the nanoscale

Researchers develop breakthrough one-step flame retardant for cotton textiles

New study identifies how blood vessel dysfunction can worsen chronic disease

Picking the right doctor? AI could help

Travel distance to nearest lung cancer facility differs by racial and ethnic makeup of communities

UTA’s student success strategy earns national acclaim

Wind turbines impair the access of bats to water bodies in agricultural landscapes

UCF biology researchers win awards from NOAA to support critical coastal work

[Press-News.org] Blueberry extract could help fight gum disease and reduce antibiotic use