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).

Rett Syndrome, the first identified epigenetic disease - linked to specific defects in the three-dimensional folding of chromatin

Sometime between the age of 6 and 18 months, after a period of seemingly normal development, girls affected with Rett Syndrome lose interest in play; they gradually become withdrawn and anxious, develop autistic-like behaviors, and acquire specific symptoms like repetitive teeth-grinding and hand-wringing.

20 Dec 2004

Discovery of new compound known as SP-4-84 could lead to improved chemotherapy treatments

The discovery of a new compound by Michigan State University researchers could lead to improved chemotherapy treatments for different types of cancers – potentially with fewer side effects.

20 Dec 2004

New theory driving evolutionary changes

Researchers at UT Southwestern Medical Center at Dallas have used canine DNA to identify a genetic mutation mechanism they believe is responsible for rapid evolutionary changes in the physical appearance of many species.

14 Dec 2004

Revised safety advice on chromium picolinate supplements

The Food Standards Agency has revised its advice on the safety of chromium picolinate supplements. It is no longer advising people to avoid this type of chromium.

14 Dec 2004

New cancer detection technology from Rubicon Genomics

Rubicon Genomics has invented a more effective technology for the diagnosis and prognosis of cancer compared to what hospitals and reference laboratories use today. MethylPlex™ is the most sensitive method in use to detect the patterns of abnormal DNA methylation arising in the serum and urine of patients during tumor formation and progression.

14 Dec 2004

Instead of chemotherapy, drugs that influence the X protein's behavior might become an alternative cancer therapy

Identifying the link between chronic hepatitis B infection and liver cancer may one day help cancer patients sidestep the poison of chemotherapy, a Purdue University study suggests.

13 Dec 2004

Start today of human tests for a preventive vaccine against the respiratory disease SARS

Powerful research tools that speed up vaccine development have led to the start today of human tests for a preventive vaccine against the respiratory disease SARS. The disease killed hundreds of people around the world before it was brought under control in 2003 with aggressive conventional public health measures.

13 Dec 2004

New approach to genomic testing identifies women with low risk of breast cancer recurrence

An initial validation study presented by Exagen Diagnostics at the San Antonio Breast Cancer Symposium suggests it may soon be possible to distinguish good prognosis from poor prognosis in any newly diagnosed breast cancer patient based on DNA changes in the patient's tumor.

13 Dec 2004

Patent issued for generating genetically evolved mammalian cells through the regulation of mismatch repair

Morphotek announced today the issuance of United States Patent 6,825,038 covering the regulation of mismatch repair (MMR), a powerful process for generating functional diversity in mammalian cells, to yield sibs exhibiting desirable phenotypes for target discovery, drug screening and/or product development.

13 Dec 2004

First gene therapy for skin cancer

Researchers at UT Southwestern Medical Center at Dallas have successfully tested the first gene therapy for skin cancer, using a mouse model for the disease xeroderma pigmentosum, or XP.

13 Dec 2004

Using precise, radioactively labeled genetic probes, researchers study cancer gene activity from outside the body

Using precise, radioactively labeled genetic probes, researchers at Jefferson Medical College have seen cancer gene activity from outside the body in laboratory mice. The probes, which work by attaching to genetic codes copied from an active cancer gene, may someday aid physicians and scientists in cancer detection and in determining the appropriate treatment for a cancer.

13 Dec 2004

New technology will advance our understanding of role of complex sugar chains decorating the surface of cells in the body

An international consortium of scientists lead by Dr. James Paulson of The Scripps Research Institute has created a technology that will advance our understanding of the role of complex sugar chains (glycans or carbohydrates) that decorate the surface of cells in the body.

8 Dec 2004

New research is allowing biochemists to understand a key hierarchy of protein interactions that occurs in DNA

"All cancers are marked by some form of DNA replication gone awry, so a basic understanding of DNA replication is of paramount importance to those designing cancer-fighting drugs,"

8 Dec 2004

DNA crystal that computes as it grows

In a demonstration that holds promise for future advances in nanotechnology, California Institute of Technology computer scientists have succeeded in building a DNA crystal that computes as it grows. As the computation proceeds, it creates a triangular fractal pattern in the DNA crystal.

7 Dec 2004

Gauging the risk from prolonged low-level radiation

Everyone knows that high doses of radiation are dangerous, but the effects of long-term exposure to low-level radiation is poorly understood. RISC-RAD, a new European Union backed research project, seeks to identify our tolerance threshold so as to optimise protective measures.

7 Dec 2004

Electrochemical DNA chip that is able to detect DNA at very low concentrations

Toshiba Corporation has announced the development of a highly sensitive electrochemical DNA chip that is able to detect DNA at very low concentrations, a capability that will support advances in gene detection and analysis for individual treatment regimes, and the monitoring of healthy individuals for any predisposition to certain diseases.

6 Dec 2004

Scientist develops way to deliver promising genetic tool into living cells

By exploiting an HIV protein that readily traverses cell membranes, Carnegie Mellon University scientists have developed a new way to introduce a gene-like molecule called a peptide nucleic acid (PNA) directly into live mammalian cells, including human embryonic stem (ES) cells.

6 Dec 2004

Episome vectors offer fresh angle to gene therapy

A European research team is seeking to overcome the early setbacks suffered by the promising new field of ‘gene therapy’ by developing a revolutionary delivery technique, known as ‘episome vectors’. This breakthrough could pave the way to treating hereditary diseases by injecting the body with healthy versions of damaged genes.

6 Dec 2004

Genetic mutations and cellular modifications may provide clues to the associations between slight genetic abnormalities and often fatal diseases

Modern research is delving deep into the human genome to find the answers to medical mysteries and, hopefully, cures for the most deadly diseases. According to four new studies presented during the 46th Annual Meeting of the American Society of Hematology

5 Dec 2004

Researchers step closer to cure for common childhood cancer

Acute lymphoblastic leukemia (ALL) is a malignant disease caused by the abnormal growth and development of white blood cells (WBC) in the bone marrow and blood. ALL is the most common cancer occurring in children with an annual rate of approximately 30 to 40 new cases per million.

5 Dec 2004

DNA News and Research

Further Reading

Rett Syndrome, the first identified epigenetic disease - linked to specific defects in the three-dimensional folding of chromatin

Discovery of new compound known as SP-4-84 could lead to improved chemotherapy treatments

New theory driving evolutionary changes

Revised safety advice on chromium picolinate supplements

New cancer detection technology from Rubicon Genomics

Instead of chemotherapy, drugs that influence the X protein's behavior might become an alternative cancer therapy

Start today of human tests for a preventive vaccine against the respiratory disease SARS

New approach to genomic testing identifies women with low risk of breast cancer recurrence

Patent issued for generating genetically evolved mammalian cells through the regulation of mismatch repair

First gene therapy for skin cancer

Using precise, radioactively labeled genetic probes, researchers study cancer gene activity from outside the body

New technology will advance our understanding of role of complex sugar chains decorating the surface of cells in the body

New research is allowing biochemists to understand a key hierarchy of protein interactions that occurs in DNA

DNA crystal that computes as it grows

Gauging the risk from prolonged low-level radiation

Electrochemical DNA chip that is able to detect DNA at very low concentrations

Scientist develops way to deliver promising genetic tool into living cells

Episome vectors offer fresh angle to gene therapy

Genetic mutations and cellular modifications may provide clues to the associations between slight genetic abnormalities and often fatal diseases

Researchers step closer to cure for common childhood cancer

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