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UV induction of melanin is directly involved in melanoma formation

A new study conducted by GW School of Medicine and Health Sciences (SMHS) researchers Edward C. De Fabo, Ph.D., Frances P. Noonan, Ph.D., and Anastas Popratiloff, M.D., Ph.D., has been published in the journal Nature Communications. Their paper, entitled "Melanoma induction by ultraviolet A but not ultraviolet B radiation requires melanin pigment," was published in June 2012.

24 Jul 2012

Longer looks: Physicians and assisted suicide; Avoid getting sick in July

Peggy Sutherland was ready to die. The morphine oozing from a pump in her spine was no match for the pain of lung cancer, which had evaded treatment and invaded her ribs. … Sutherland, 68, decided to use Oregon's "Death With Dignity Act," which allows terminally-ill residents to end their lives after a 15-day requisite waiting period by self-administering a lethal prescription drug. ... But not all doctors are on board with the law.

20 Jul 2012

High vitamin E intake associated with reduced risk of liver cancer

High consumption of vitamin E either from diet or vitamin supplements may lower the risk of liver cancer, according to a study published July 17 in the Journal of the National Cancer Institute.

19 Jul 2012

Research finds new single-gene cause of chronic kidney disease

A new single-gene cause of chronic kidney disease has been discovered that implicates a disease mechanism not previously believed to be related to the disease, according to new research from the University of Michigan.

11 Jul 2012

Safer alternative to experimental gene therapy against HIV infection

Scientists at The Scripps Research Institute have discovered a surprisingly simple and safe method to disrupt specific genes within cells. The scientists highlighted the medical potential of the new technique by demonstrating its use as a safer alternative to an experimental gene therapy against HIV infection.

2 Jul 2012

Having antibodies for cutaneous HPV and sun exposure can act synergistically in BCC, SCC

Researchers at Moffitt Cancer Center and colleagues at the University of South Florida and the German Cancer Research Center in Heidelberg have found that having antibodies for cutaneous types of human papillomavirus (HPV), coupled with sun exposure (ultraviolet radiation) or poor tanning ability, can act "synergistically" in the development of non-melanoma skin cancers such as basal cell carcinoma (BCC) and squamous cell carcinoma (SCC).

26 Jun 2012

Biochemists map structure of key protein-RNA complex required for assembly of telomerase

UCLA biochemists have mapped the structure of a key protein-RNA complex that is required for the assembly of telomerase, an enzyme important in both cancer and aging.

20 Jun 2012

Researchers determine structure of MRN complex

Double-stranded breaks in cellular DNA can trigger tumorigenesis. Researchers from Ludwig-Maximilians-Universitaet (LMU) in Munich have now determined the structure of a protein involved in the repair and signaling of DNA double-strand breaks. The work throws new light on the origins of neurodegenerative diseases and certain tumor types.

20 Jun 2012

NF-κB inhibitors can mitigate cellular damage and prevent aging-related degenerative changes

Age-associated degeneration is caused, at least in part, by accumulated cellular damage, including DNA damage, but how these types of damage drive aging remains unclear. Dr. Paul Robbins and colleagues at the University of Pittsburgh sought to address this question using a mouse model of DNA repair deficiency.

19 Jun 2012

New solution to detect DNA base modifications associated with epigenetic regulation and DNA damage

Pacific Biosciences of California, Inc., today launched a new and unique solution to detect DNA base modifications associated with epigenetic regulation and DNA damage using the PacBio RS High Resolution Genetic Analyzer.

18 Jun 2012

CINJ commences enrollment in three-drug combination trial for breast cancer

Researchers at The Cancer Institute of New Jersey (CINJ) are enrolling patients for a clinical trial, which aims to evaluate a new drug for breast cancer that has spread (metastatic) in combination with two chemotherapy agents called doxorubicin and cyclophosphamide.

18 Jun 2012

Study shows how infections provoke tissues into becoming cancerous

One of the biggest risk factors for liver, colon or stomach cancer is chronic inflammation of those organs, often caused by viral or bacterial infections. A new study from MIT offers the most comprehensive look yet at how such infections provoke tissues into becoming cancerous.

12 Jun 2012

Study documents altruistic behavior by human embryonic stem cells

When most groups of mammalian cells are faced with a shortage of nutrients or oxygen, the phrase "every man for himself" is more apt than "all for one, one for all." Unlike colonies of bacteria, which often cooperate to thrive as a group, mammalian cells have never been observed to help one another out. But a new study led by a researcher at the Stanford University School of Medicine has shown that certain human embryonic stem cells, in times of stress, produce molecules that not only benefit themselves, but also help nearby cells survive.

12 Jun 2012

Researchers describe germ line functions of par-5 gene

Certain proteins, such as 14-3-3, conserve their basic functions of cell cycle control in diverse organisms, from worms to humans. In a study led by Juli-n Cer-n and Sim- Schwartz Jr, researchers from the Bellvitge Biomedical Research Institute (IDIBELL) and the Research Institute of Vall d'Hebron (VHIR) respectively, have described germ line functions of par-5, which is one of the two 14-3-3 proteins existing in Caenorhabditis elegans, worms used as experimental model in genetic studies.

10 Jun 2012

Tp53 genetic mutation may play an important role in prostate cancer

A team of UC Davis investigators has found that a genetic mutation may play an important role in the development of prostate cancer. The mutation of the so-called p53 (or Tp53) gene was previously implicated in late disease progression, but until now has never been shown to act as an initiating factor. The findings may open new avenues for diagnosing and treating the disease.

8 Jun 2012

X-chromosome involved in development of bowel cancer

Scientists have shown for the first time that one of the sex chromosomes is involved in the development of a cancer that can afflict both genders, according to a Cancer Research UK-funded study in Nature Genetics.

28 May 2012

Consumption of resistant starch leads to positive changes in the bowel

Consumption of resistant starch leads to positive changes in the bowel and could protect against genetic damage implicated in bowel cancer.

27 Apr 2012

New 'super food' breakthrough in sports nutrition

RESEARCHERS have found that antioxidant-rich watercress, often labelled a super-food, can alleviate the natural stress put on our body by a workout.

26 Apr 2012

TopBP1 protein prevents early brain cells from DNA damage

St. Jude Children's Research Hospital scientists have rewritten the job description of the protein TopBP1 after demonstrating that it guards early brain cells from DNA damage. Such damage might foreshadow later problems, including cancer.

24 Apr 2012

US DoD awards UC researchers $3.7M grant to study circadian rhythms

Researchers from the University of Cincinnati (UC) have received a four-year, $3.7 million grant from the U.S. Department of Defense for investigations into circadian rhythms that could lead to enhanced understanding of disease treatments, trauma care and human combat performance.

18 Apr 2012