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Science News for June 15, 2007


Gum disease in postmenopausal women linked to oral bone loss

A study of postmenopausal women has found that infection with four known gum-disease-causing bacteria is associated with more severe oral bone loss. The two most prevalent pathogens were P. gingivalis and T. forsythensis, found in 15.1% and 37.9% of the participants.

SourceUniversity at Buffalo·JournalJournal of Periodontology·DateJun 15, 2007

Bone erosion reduced by denosumab in phase 2 trial

A phase 2 trial found that denosumab reduced the progression of bone erosion in patients with rheumatoid arthritis. The treatment group experienced significant reductions in erosion scores, even as early as six months, compared to the control group.

SourceEuropean Alliance of Associations for Rheumatology (EULAR)·DateJun 15, 2007

The perks and pitfalls of pride

Recent studies have shed light on the origins and purpose of pride, a complex emotion linked to achievement-oriented ideas like accomplishment and confidence. People who feel authentic pride tend to score high on extraversion and genuine self-esteem.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateJun 15, 2007
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Premature vascular and bone changes occur in COPD patients

Researchers found that COPD patients exhibit greater arterial stiffness, especially those with osteoporosis. This early sign of aging may contribute to the increased risk of cardiovascular disease in these patients.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJun 15, 2007

Infectious diseases experts issue blueprint to avert

The Infectious Diseases Society of America has released a new blueprint to prevent tens of thousands of deaths and illnesses caused by vaccine-preventable diseases. The blueprint aims to improve vaccination rates among adults and adolescents, with a focus on increasing access to vaccines for underserved populations.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateJun 15, 2007

Cancer stem cells similar to normal stem cells can thwart anti-cancer agents

Research at the University of Pittsburgh School of Medicine suggests that chemotherapy must target a subset of cancer stem cells to be effective in treating lung cancers. Cancer stem cells, similar to normal stem cells, can resist multiple drug resistance transporters, making them resistant to conventional therapies.

SourceUniversity of Pittsburgh Schools of the Health Sciences·DateJun 15, 2007
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Marine phytoplankton changes form to protect itself from different predators

Researchers found that Phaeocystis globosa can change its colony formation based on the presence of nearby grazers, enhancing or suppressing colonies to avoid being eaten. This complex defensive behavior has implications for global climate change, as Phaeocystis blooms play a key role in the carbon cycle.

SourceGeorgia Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJun 15, 2007
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Study demonstrated ROZEREM (ramelteon) does not affect body sway

Studies demonstrated that ROZEREM did not impair middle-of-the-night balance, mobility or memory performance in patients with chronic insomnia. The medication's unique mechanism of action targets the suprachiasmatic nucleus, which regulates the sleep-wake cycle, and showed no evidence of abuse potential.

SourceKetchum UK·DateJun 15, 2007

First multinational study of Tocilizumab reports in

A European multinational study showed that tocilizumab improved symptoms in 43.9% and 22% of patients with rheumatoid arthritis, with a 70% improvement observed in over one-fifth, according to the first phase III trial results.

SourceEuropean Alliance of Associations for Rheumatology (EULAR)·DateJun 15, 2007
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Elevated pepsin levels may lead to rejection of lung transplants

Researchers found that elevated pepsin levels, a marker for gastric aspiration, are associated with acute rejection of lung transplants. Prolonged exposure to stomach fluids may contribute to lung injury and increase the risk of rejection.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJun 15, 2007

Runners -- Let thirst be your guide

Endurance exercise experts recommend limiting fluid intake during prolonged activities to prevent exercise-induced hyponatremia (EAH), a potentially lethal water intoxication. Excess drinking can lead to diluted sodium levels in the blood, posing risk to athletes engaging in 4-hour or longer endurance events.

SourceGeorgetown University Medical Center·JournalSports Medicine·DateJun 15, 2007

Colon cancer proteins show promise for blood test

Johns Hopkins scientists discovered blood-dwelling proteins CCSA-3 and CCSA-4 that accurately identify colon cancer and precancerous polyps. The researchers were 100% accurate in identifying existing cancers and correctly identified individuals with advanced precancerous polyps, suggesting a potential less invasive screening test.

SourceJohns Hopkins Medicine·JournalCancer Research·DateJun 15, 2007
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

454 sequencing identifies HIV drug resistance at early stage

A retrospective study identified rare drug-resistant HIV variants in blood samples from an earlier clinical trial using ultra-deep sequencing. The findings suggest that even low-level mutations can lead to early treatment failure, highlighting the need for improved resistance testing methods.

SourceRusso Partners, LLC·DateJun 15, 2007