DNA News and Research

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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Nanotechnology continues to advance anticancer gene therapy

Given that cancer is a disease in which genetic errors play a major role, it should come as no surprise that many experts envision a time when gene therapy will play an equally important role in the treatment of cancer.

20 Nov 2006

Scientists discover function for antisense RNA

Researchers have found that a class of RNA molecules, previously thought to have no function, may in fact protect sex cells from self-destructing. These findings will be published in the November 17 issue of the journal Cell.

20 Nov 2006

Gene expression and lung cancer prognosis

While there have been significant advances in the use of gene expression profiling to assess a cancer prognosis, a Mayo Clinic review and analysis of existing lung cancer studies shows that this technology has not yet surpassed the accuracy of conventional methods used to assess survival in lung cancer patients.

19 Nov 2006

International plan to protect against counterfeit medicines

The World Health Organization (WHO) and more than 20 international partners are today launching a comprehensive package of measures to help national authorities safeguard their populations from the dangers of counterfeit medicines.

15 Nov 2006

Food can have an impact in preventing cancer

With cancer, researchers don't believe "you are what you eat"; that disease is always a direct result of what is, or what isn't, on your dinner plate.

14 Nov 2006

DNA analysis could boost accuracy of thyroid tests

By fine-tuning "fine-needle aspiration" biopsies with a super-fast genetic microarray technology, a team of surgeons from NewYork-Presbyterian Hospital/Weill Cornell Medical Center in New York City says they can greatly enhance the accuracy of these tests.

14 Nov 2006

Scientists shed light on the roll of junk DNA

University of Iowa scientists have made a discovery that broadens understanding of a rapidly developing area of biology known as functional genomics and sheds more light on the mysterious, so-called "junk DNA" that makes up the majority of the human genome.

13 Nov 2006

Muscle protein myosin VI involved in the development of prostate cancer

Researchers at the Johns Hopkins Kimmel Cancer Center have for the first time implicated the muscle protein myosin VI in the development of prostate cancer and its spread.

8 Nov 2006

Inhibiting a particular cancer-causing gene improves radiation effectiveness

Inhibiting a particular cancer-causing gene can enhance the cell-killing effects of radiation, a team of radiation oncologists and cancer biologists at the Kimmel Cancer Center at Thomas Jefferson University in Philadelphia has found.

8 Nov 2006

HPV test is a better long-term predictor of cervical cell abnormalities than pap smear

The best initial cervical cancer screening tool for younger women is still the traditional Pap smear. However, a large Danish study has found that for older women (age 40 and older), a test for human papillomavirus (HPV) is a much more effective way to screen for potential cancer.

1 Nov 2006

Potential for first diagnostic DNA test to guide antidepressant treatment

Treatment of depression is difficult for both patients and for psychiatrists. While there are numerous drugs available that work, finding the right one -- or right combination -- is, at times, a matter of trial and error.

31 Oct 2006

Botswana launches infant HIV testing program

Botswana in a ceremony in Francistown -- attended by Mark Dybul, who serves as the U.S. global AIDS coordinator and administers the President's Emergency Plan for AIDS Relief -- launched a program to test six-month-old infants for HIV, according a U.S. embassy statement released on Wednesday, SAPA/SABC News reports.

30 Oct 2006

Detecting rare microRNAs with gold nanoparticles

Over the past three years, numerous studies have shown that short pieces of single-stranded RNA, known as microRNAs, play a central role in the development of at least some cancers.

30 Oct 2006

Amgen, Brigham and Women's Hospital, NIH to launch women's health genome study

Biotechnology company Amgen, Boston-based Brigham and Women's Hospital and NIH plan to launch the Women's Health Genome Study -- which aims to discover the genetic causes of disorders affecting women, including breast cancer -- the Wall Street Journal reports.

24 Oct 2006

Benign virus previously used as a marker in tracing human migration may be unreliable

...according to researchers at Penn State. Results of this study also suggest that some viruses might be undergoing much higher rates of evolution than previously thought.

24 Oct 2006

Researchers uncover new way in which the aging process is linked to DNA damage

Researchers have uncovered a new way in which the aging process is linked to DNA damage--which occurs normally as a result of cell metabolism and environmental influences--and the various ways in which cells repair that damage.

23 Oct 2006

New smart anti-microbial approach to preventing tooth decay

Preventing cavities could one day involve the dental equivalent of a military surgical strike. A team of researchers supported by the National Institute of Dental and Craniofacial Research report they have created a new smart anti-microbial treatment that can be chemically programmed in the laboratory to seek out and kill a specific cavity-causing species of bacteria, leaving the good bacteria untouched.

23 Oct 2006

PGC-1 alpha implicated in Huntington's disease neurodegeneration

A metabolic disorder underlies the brain effects found in those with Huntington's disease, researchers report in an advance article publishing online October 19, 2006. The article will appear in the November 2006 issue of the journal Cell Metabolism, published by Cell Press.

20 Oct 2006

Gene mutation explains type of brittle bone disease

A newly identified gene mutation helps explain a subset of cases of osteogenesis imperfecta (OI), or brittle bone disease, whose origin had until now remained mysterious.

20 Oct 2006

Gene called Kibra plays an important role in memory

Researchers at the Translational Genomics Research Institute (TGen) have announced the discovery of a gene that plays a significant role in memory performance in humans.

20 Oct 2006