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New class of drugs reduces adverse effects of cellular damage from cancer chemotherapy

Chemotherapy kills tumor cells, but it also wreaks havoc on the rest of the body. A team of researchers led by Igor Roninson of the South Carolina College of Pharmacy just reported the discovery of a new class of drugs that reduces the adverse effects of cellular damage from chemotherapy.

8 Aug 2012

Empa physicist analyzes structure and composition of soot particles

Since June 2012, it is official: The World Health Organisation (WHO) has classified diesel soot as a lung carcinogen. Artur Braun, a physicist at Empa and an X-ray spectroscopy expert, has made crucial contributions to analyzing the structure and composition of soot particles.

6 Aug 2012

Iced tea can lead to formation of kidney stones

This is the peak season for drinking iced tea, but a Loyola University Medical Center urologist is warning the popular drink can contribute to painful kidney stones.

3 Aug 2012

Scientists identify biological mechanism that may be responsible for icy extremities

Cold feet-those chilly appendages that plague many people in the winter and an unlucky few all year round-can be the bane of existence for singles and couples alike. In a new study, scientists led by Selvi C. Jeyaraj of the Research Institute at Nationwide Children's Hospital have identified a biological mechanism that may be responsible for icy extremities: an interaction between a series of molecules and receptors on smooth muscle cells that line the skin's tiny blood vessels.

1 Aug 2012

FDA partial ban of bisphenol A raises questions

The US Food and Drug Administration has banned the use of polycarbonate resins, including bisphenol A, in the manufacture of infant feeding bottles and spill-proof or “sippy” cups.

31 Jul 2012

Slippery technology prevents harmful bacterial slime from forming on surfaces

Biofilms may no longer have any solid ground upon which to stand. A team of Harvard scientists has developed a slick way to prevent the troublesome bacterial communities from ever forming on a surface. Biofilms stick to just about everything, from copper pipes to steel ship hulls to glass catheters. The slimy coatings are more than just a nuisance, resulting in decreased energy efficiency, contamination of water and food supplies, and-especially in medical settings-persistent infections. Even cavities in teeth are the unwelcome result of bacterial colonies.

31 Jul 2012

Antioxidants and pancreatic cancer risk: an interview with Dr Andrew Hart

The antioxidants that we mainly looked at were selenium, vitamin C and vitamin E. They are chemicals which inactivate pro-oxidants or free radicals. Smoking and normal metabolism can lead to the production of free radicals.

30 Jul 2012

Study extends scientific understanding of how pheromones activate the vomeronasal organ

The vomeronasal organ (VNO) is one of evolution's most direct enforcers. From its niche within the nose in most land-based vertebrates, it detects pheromones and triggers corresponding basic-instinct behaviors, from compulsive mating to male-on-male death matches. A new study from the Stowers Institute for Medical Research, published online in Nature Neuroscience on July 29, 2012, extends the scientific understanding of how pheromones activate the VNO, and has implications for sensory transduction experiments in other fields.

30 Jul 2012

Roofers have higher PAH blood-levels after 6-hour shift

Roofers and road construction workers who use hot asphalt are exposed to high levels of polycyclic aromatic hydrocarbons (PAHs). A University of Colorado Cancer Center study published this week in the British Medical Journal Open shows that roofers have higher PAH blood-levels after a shift than before and that these high levels of PAHs are linked with increased rates of DNA damage, and potentially with higher cancer risk.

28 Jul 2012

No 'quick fix' for eradicating the malaria mosquito

The fact that the global death toll from malaria has dropped by 25 percent over the last ten years would suggest that efforts to control the malaria mosquito are succeeding. But control methods are still largely based on chemical insecticides. A risky business, according to entomologists and experts in biological pesticides from America and Wageningen.

27 Jul 2012

AAQ chemical temporarily restores vision in blind mice

A team of University of California, Berkeley, scientists in collaboration with researchers at the University of Munich and University of Washington in Seattle has discovered a chemical that temporarily restores some vision to blind mice, and is working on an improved compound that may someday allow people with degenerative blindness to see again.

26 Jul 2012

Mercyhurst expert addresses FDA's recent ban on Bisphenol-A

The FDA says baby bottles and sippy cups can no longer contain Bisphenol-A (BPA), an endocrine disruptor that mimics estrogen. But what about the hundreds of other plastic items, from water bottles to dental sealants, containing BPA?

25 Jul 2012

International Congress on Natural Products Research to be held in New York City

The urgent need to evaluate nature's repository of chemicals in plants, microbes, and marine organisms for their potential value in health care will be a major theme of a five-day scientific conference in New York that is expected to draw some 1,200 natural products researchers from around the world.

21 Jul 2012

Viewpoints: Creating an HIV-free generation; Postal Service's struggle over retiree health benefits

HIV forces us to deal with so much: sex, drugs, poverty, racism, homelessness, homophobia, sexism, illness and death. While our nation's response has been imperfect, we have gotten a lot right. And we are now at a pivotal moment where science has led us to imagine the possibility of an HIV-free generation.

21 Jul 2012

New insight into use and awareness of electronic cigarettes

Survey findings released today show new insight into the use and awareness of electronic cigarettes, devices that allow smokers to inhale vaporized nicotine in a cigarette-like fashion.

20 Jul 2012

Single-step method can rapidly detect pathogens and chemical contaminants

Using nanoscale materials, researchers at the University of Georgia have developed a single-step method to rapidly and accurately detect viruses, bacteria and chemical contaminants.

20 Jul 2012

Researchers discover potential drug targets that might reduce ventilator-induced lung inflammation

When hospital patients need assistance breathing and are placed on a mechanical ventilator for days at a time, their lungs react to the pressure generated by the ventilator with an out-of-control immune response that can lead to excessive inflammation, new research suggests.

19 Jul 2012

Researchers uncover mechanism by which aging may weaken immune response

Researchers at Albert Einstein College of Medicine of Yeshiva University have uncovered one of the mechanisms by which aging may compromise the ability of the immune system to fight infections and respond to vaccines.

18 Jul 2012

Risk of birth defects linked to certain jobs dads do

Several types of job carried out by future fathers may be linked to an increased risk of birth defects in their babies, suggests research published online in Occupational and Environmental Medicine.

18 Jul 2012

Study shows why eating less may be therapeutic for people with neuromuscular disorders

A novel technique for measuring tiny, rapid-fire secretions in the brains and mouthparts of fruit flies (drosophila) is providing insights into the beneficial effects of eating less - information that ultimately could help people suffering from neuromuscular disorders.

17 Jul 2012