DNA News and Research

RSS

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).

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

Children of older fathers inherit longer telomeres

If your father and grandfather waited until they were older before reproducing, you might experience life-extending benefits. Biologists assume that a slow pace of aging requires that the body invest more resources in repairing cells and tissues.

12 Jun 2012

Distinct cancer 'signatures' may help predict response to estrogen-lowering therapy

Decoding the DNA of patients with advanced breast cancer has allowed scientists to identify distinct cancer "signatures" that could help predict which women are most likely to benefit from estrogen-lowering therapy, while sparing others from unnecessary treatment.

11 Jun 2012

Rapid test to identify patients not responding to painkiller tramadol

French researchers have found a way to identify quickly the 5-10% of patients in whom the commonly used painkiller, tramadol, does not work effectively. A simple blood test can produce a result within a few hours, enabling doctors to switch a non-responding patient on to another painkiller, such as morphine, which will be able to work in these patients.

11 Jun 2012

Simple blood test can quickly identify 'poor metabolisers'

11 Jun 2012

New understanding about how placental growth is regulated before birth

Scientists at the Babraham Institute have gained a new understanding of how the growth of the placenta is regulated before birth, which has important implications for a healthy pregnancy.

11 Jun 2012

Biomedical engineers develop SMART detector for flu diagnosis

In April 2009, the world took notice as reports surfaced of a virus in Mexico that had mutated from pigs and was being passed from human to human. The H1N1 "swine flu," as the virus was named, circulated worldwide, killing more than 18,000 people, according to the World Health Organization. The Centers for Disease Control and Prevention in the United States said it was the first global pandemic in more than four decades.

11 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

Discovery answers why mother's immune system does not reject developing fetus as foreign tissue

Researchers at NYU School of Medicine have made an important discovery that partially answers the long-standing question of why a mother's immune system does not reject a developing fetus as foreign tissue.

8 Jun 2012

What are vitamins?

Most people have heard of vitamin C and its effects upon the body; but how much do you know about other vitamins? How many even are there? And what do they all do?

8 Jun 2012

Erivedge drug shows promise against advanced basal cell carcinoma

It's the most common form of skin cancer, but in its advanced stages, basal cell carcinoma has the potential to become disfiguring and life threatening. An international phase 2 study headed by Mayo Clinic led to the recent Food and Drug Administration approval of the first drug of its kind to help advanced basal cell carcinoma patients who have few treatment options.

8 Jun 2012

Researchers shed light on key biological events that may lead to new disease treatments

In exploring how proteins interact with crucial DNA sequences to regulate gene activity, researchers have shed light on key biological events that may eventually be manipulated to provide new disease treatments.

8 Jun 2012

Nrf2-KEAP1 protein may play a role in diabetic retinopathy

A Wayne State University researcher believes a protein that fails to reach the nucleus of retinal cells may play a role in causing eye disease in people with diabetes.

8 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

Strand, Trovagene enter MOU to license and validate HPV assay technology

Trovagene, Inc., a developer of trans-renal molecular diagnostics, and Strand Life Sciences Pvt Ltd., of Bangalore, India, have entered into a Memorandum of Understanding (MOU) to license and validate Trovagene's proprietary Human Papillomavirus (HPV) urine test and High Risk HPV DNA Assay for clinical diagnostic and carrier screening use in India and countries in the South Asian Association for Regional Cooperation.

8 Jun 2012

Enrollment complete in Advaxis’ ADXS-HPV Phase 2 study on CIN 2/3

Advaxis, Inc., a leader in developing the next generation of immunotherapies for cancer and infectious diseases, announced today that it has completed enrollment of 40 patients in the second of three dose cohorts in Lm-LLO-E7-07, a randomized, single blind, placebo controlled Phase 2 dose escalation study assessing the safety and efficacy of ADXS-HPV for the treatment of cervical intraepithelial neoplasia (CIN) 2/3.

7 Jun 2012

CDI introduces MyCell Services

Cellular Dynamics International, Inc. (CDI), the world's largest commercial producer of human induced pluripotent stem (iPS) cell lines and tissue cells, today announced the launch of its MyCell Services.

7 Jun 2012

Study suggests link between fungi and ulcerative colitis

Cedars-Sinai researchers say their examination of the fungi in the intestines suggests an important link between these microbes and inflammatory diseases such as ulcerative colitis.

7 Jun 2012

Study reveals new information about origin of tumors

A study by Travis H. Stracker, researcher at the Institute for Research in Biomedicine (IRB Barcelona), in collaboration with scientists at the Memorial Sloan Kettering Cancer Center (MSKCC) in New York, reveals new information about the origin of tumors.

7 Jun 2012

Pioneering new test can quickly diagnose coeliac disease

Coeliac disease affects millions of people worldwide, but many sufferers are not aware they have the condition or may have been misdiagnosed with other illnesses. A pioneering new test developed with EU-funding should soon be available in hospitals, offering an accurate, quick, cost-effective diagnosis and monitoring solution.

6 Jun 2012