News tagged with human exposure


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Search results for human exposure


Rodent smoke screen

Medicine & Health / Psychology & Psychiatry

created Dec 08, 2009 | popularity not rated yet | comments 0

Rats passively exposed to tobacco smoke become dependent on nicotine, according to a new study by Dr. Adrie Bruijnzeel and colleagues from the University of Florida in the US. Their findings of how rats' brains respond to ...


Older dental fillings contain form of mercury unlikely to be toxic

Older dental fillings contain form of mercury unlikely to be toxic

Chemistry / Biochemistry

created Dec 09, 2009 | popularity not rated yet | comments 0

A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic than previously thought. It appears online in ACS' journal ...


Secondhand smoke exposure in childhood increases lung cancer risk later in life

Medicine & Health / Cancer

created Dec 03, 2009 | popularity 5 / 5 (1) | comments 0

Children exposed to secondhand cigarette smoke have an increased risk of developing lung cancer in adulthood, even if they never smoked.


Human Mdm2: A new molecular link to late-stage metastatic breast cancer

Medicine & Health / Cancer

created Dec 02, 2009 | popularity not rated yet | comments 0

A large proportion of late-stage breast cancers that have spread to other parts of the body (metastatic breast cancers) are characterized by overexpression of the protein Mdm2.


Unindicated CT series result in unnecessary radiation exposure for patients

Medicine & Health / Cancer

created Nov 30, 2009 | popularity not rated yet | comments 0

A large proportion of patients who undergo abdominal/pelvic computed tomography (CT) receive unindicated and unnecessary additional image acquisition resulting in excess, avoidable radiation exposure, according to a study ...


Waterpipe tobacco smokers inhale same toxicants as cigarette smokers

Medicine & Health / Health

created Dec 02, 2009 | popularity not rated yet | comments 1

Smoking tobacco through a waterpipe exposes the user to the same toxicants - carbon monoxide and nicotine - as puffing on a cigarette, which could lead to nicotine addiction and heart disease, according to a study led by ...


Genomes of identical twins reveal epigenetic changes that may play role in lupus

Medicine & Health / Genetics

created Dec 21, 2009 | popularity 5 / 5 (2) | comments 0

Identical twins look the same and are nearly genetically identical, but environmental factors and the resulting cellular changes could cause disease in one sibling and not the other. In a study published online in Genome Re ...


Why we outlive our ape ancestors

Medicine & Health / Research

created Dec 02, 2009 | popularity 4 / 5 (5) | comments 0

In spite of their genetic similarity to humans, chimpanzees and great apes have maximum lifespans that rarely exceed 50 years. The difference, explains USC Davis School of Gerontology Professor Caleb Finch, is that as humans ...


Kangaroos may hold skin cancer cure: study

Medicine & Health / Cancer

created Nov 30, 2009 | popularity not rated yet | comments 0

Kangaroos may provide the key to a potential treatment to prevent skin cancer, Australian scientists said Monday.


Lung cancer and melanoma laid bare: First comprehensive analysis of two cancer genomes

Medicine & Health / Cancer

created Dec 16, 2009 | popularity 5 / 5 (4) | comments 0

Research teams led by the Wellcome Trust Sanger Institute announce the first comprehensive analyses of cancer genomes. All cancers are caused by mutations in the DNA of cancer cells which are acquired during a person's lifetime. ...



List of search results for human exposure