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Biofilm-Fighting Cool Plasma and Other News of Note

Posted Nov 04 2009 10:05pm

Wiping Out Tooth Infections: Cool Plasma Packs Heat Against Biofilms (ScienceDaily)

Though it looks like a tiny purple blowtorch, a pencil-sized plume of plasma on the tip of a small probe remains at room temperature as it swiftly dismantles tough bacterial colonies deep inside a human tooth. But it’s not another futuristic product of George Lucas’ imagination. It’s the exciting work of USC School of Dentistry and Viterbi School of Engineering researchers looking for new ways to safely fight tenacious biofilm infections in patients – and it could revolutionize many facets of medicine… More

Over Half of People with Rheumatoid Arthritis Have Periodontitis (Medical News Today)

Over half (56%) of people with rheumatoid arthritis (RA) also have periodontitis (a chronic inflammatory disease of the gum and surrounding ligaments and bones that hold the teeth in place), displaying fewer teeth than healthy matched controls, high prevalence of oral sites presenting dental plaque and advanced attachment loss (the extent of periodontal support that has been destroyed around a tooth) (chi square p<0.05), according to the results of a new study presented…at EULAR 2009, the Annual Congress of the European League Against Rheumatism in Copenhagen, Denmark… More

Individuals Who Apply Pesticides Are Found to Have Double the Risk of Blood Disorder (Physorg.com)

A study involving 678 individuals who apply pesticides, culled from a U.S. Agricultural Health Study of over 50,000 farmers, recently found that exposure to certain pesticides doubles one’s risk of developing an abnormal blood condition called MGUS (monoclonal gammopathy of undetermined significance) compared with individuals in the general population. The disorder, characterized by an abnormal level of a plasma protein, requires lifelong monitoring as it is a pre-cancerous condition that can lead to multiple myeloma, a painful cancer of the plasma cells in the bone marrow… More

BPA Found in Many Plastics May Cause Heart Disease in Women, Research Shows (ScienceDaily)

A research team lead by Scott Belcher, PhD, Hong Sheng Wang, PhD, and Jo El Schultz, PhD, in the department of pharmacology and cell biophysics, found that exposure to BPA and/or estrogen causes abnormal activity in hearts of female rats and mice.

In addition, these researchers found that estrogen receptors are responsible for this affect in heart muscle cells.

“There is broad exposure to bisphenol A, despite recognition that BPA can have harmful effects,” Belcher says. “We had reason to believe that harmful cardiovascular affects can be added to the list”… More

Related: Study Finds Reproductive Health Effects from Low Doses of Bisphenol-A andHuman Exposure to Controversial Chemical BPA May Be Greater Than Dose Considered Safe

 

Fruits and Veggies May Improve Sperm Quality (healthfinder.gov)

Antioxidants play an important role in semen quality, according to new research from Spain.

The study found that “men with good semen quality ate more vegetables and fruit (more vitamins, folic acid and fiber and less protein and fats) than those men with low seminal quality,” the lead author, Jaime Mendiola, a researcher at the University of Murcia, said in a news release.

Antioxidants, found mainly in fruits and vegetables, lower the level of oxidative stress that can affect semen quality, the researchers explained, and also improve sperm concentration and mobility… More

“Life Force” Linked to Body’s Ability to Withstand Stress (ScienceDaily)

Our ability to withstand stress-related, inflammatory diseases may be associated, not just with our race and sex, but with our personality as well, according to a study published in the July issue of the journal Brain, Behavior and Immunity. Especially in aging women, low levels of the personality trait extraversion may signal that blood levels of a key inflammatory molecule have crossed over a threshold linked to a doubling of risk of death within five years… More


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Wiping Out Tooth Infections: Cool Plasma Packs Heat Against Biofilms (ScienceDaily)

Though it looks like a tiny purple blowtorch, a pencil-sized plume of plasma on the tip of a small probe remains at room temperature as it swiftly dismantles tough bacterial colonies deep inside a human tooth. But it’s not another futuristic product of George Lucas’ imagination. It’s the exciting work of USC School of Dentistry and Viterbi School of Engineering researchers looking for new ways to safely fight tenacious biofilm infections in patients – and it could revolutionize many facets of medicine… More

Over Half of People with Rheumatoid Arthritis Have Periodontitis (Medical News Today)

Over half (56%) of people with rheumatoid arthritis (RA) also have periodontitis (a chronic inflammatory disease of the gum and surrounding ligaments and bones that hold the teeth in place), displaying fewer teeth than healthy matched controls, high prevalence of oral sites presenting dental plaque and advanced attachment loss (the extent of periodontal support that has been destroyed around a tooth) (chi square p<0.05), according to the results of a new study presented…at EULAR 2009, the Annual Congress of the European League Against Rheumatism in Copenhagen, Denmark… More

Individuals Who Apply Pesticides Are Found to Have Double the Risk of Blood Disorder (Physorg.com)

A study involving 678 individuals who apply pesticides, culled from a U.S. Agricultural Health Study of over 50,000 farmers, recently found that exposure to certain pesticides doubles one’s risk of developing an abnormal blood condition called MGUS (monoclonal gammopathy of undetermined significance) compared with individuals in the general population. The disorder, characterized by an abnormal level of a plasma protein, requires lifelong monitoring as it is a pre-cancerous condition that can lead to multiple myeloma, a painful cancer of the plasma cells in the bone marrow… More

BPA Found in Many Plastics May Cause Heart Disease in Women, Research Shows (ScienceDaily)

A research team lead by Scott Belcher, PhD, Hong Sheng Wang, PhD, and Jo El Schultz, PhD, in the department of pharmacology and cell biophysics, found that exposure to BPA and/or estrogen causes abnormal activity in hearts of female rats and mice.

In addition, these researchers found that estrogen receptors are responsible for this affect in heart muscle cells.

“There is broad exposure to bisphenol A, despite recognition that BPA can have harmful effects,” Belcher says. “We had reason to believe that harmful cardiovascular affects can be added to the list”… More

Related: Study Finds Reproductive Health Effects from Low Doses of Bisphenol-A andHuman Exposure to Controversial Chemical BPA May Be Greater Than Dose Considered Safe

 

Fruits and Veggies May Improve Sperm Quality (healthfinder.gov)

Antioxidants play an important role in semen quality, according to new research from Spain.

The study found that “men with good semen quality ate more vegetables and fruit (more vitamins, folic acid and fiber and less protein and fats) than those men with low seminal quality,” the lead author, Jaime Mendiola, a researcher at the University of Murcia, said in a news release.

Antioxidants, found mainly in fruits and vegetables, lower the level of oxidative stress that can affect semen quality, the researchers explained, and also improve sperm concentration and mobility… More

“Life Force” Linked to Body’s Ability to Withstand Stress (ScienceDaily)

Our ability to withstand stress-related, inflammatory diseases may be associated, not just with our race and sex, but with our personality as well, according to a study published in the July issue of the journal Brain, Behavior and Immunity. Especially in aging women, low levels of the personality trait extraversion may signal that blood levels of a key inflammatory molecule have crossed over a threshold linked to a doubling of risk of death within five years… More


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