Nucleotides News and Research

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Genome-wide map shows precisely where microRNAs do their work

MicroRNAs are the newest kid on the genetic block. By regulating the unzipping of genetic information, these tiny molecules have set the scientific world alight with such wide-ranging applications as onions that can't make you cry and therapeutic potential for new treatments for viral infections, cancer and degenerative diseases. But the question remains: How do they work?

17 Jun 2009

Discovery of genetic markers to help fight diabetes

Translational Genomics Research Institute (TGen) scientists have identified five genetic biomarkers that could help lead to improved treatments, with fewer side-effects, for patients with diabetes.

17 Jun 2009

RNA snippet reduces the spread of aggressive breast cancer

A low cellular level of a tiny fragment of RNA appears to increase the spread of breast cancer in mouse models of the disease, according to researchers at Whitehead Institute for Biomedical Research.

15 Jun 2009

Yeast 'DNA damage sensor' provides chemotherapy resistance clue

Cancer Research UK scientists have been part of an international collaboration that has revealed the structure of a protein found in simple yeast cells and shown how it flags up damaged DNA for repair. The results of their study are published in Nature*. The finding may provide clues as to how some cancer cells become resistant to certain chemotherapy drugs.

11 Jun 2009

Discovery of genetic cause for primary biliary cirrhosis

Researchers have discovered a novel molecular path that predisposes patients to develop primary biliary cirrhosis, a disease that mainly affects women and slowly destroys their livers. Primary biliary cirrhosis has no known cause.

27 May 2009

Discovery of genetic factors that influence the age at which natural menopause occurs in women

For the first time, scientists have been able to identify genetic factors that influence the age at which natural menopause occurs in women. Ms Lisette Stolk, a researcher from Erasmus MC, Rotterdam, The Netherlands, told the annual conference of the European Society of Human Genetics today ( Monday 25 May) that a greater understanding of the factors influencing age at menopause might eventually help to improve the clinical treatment of infertile women.

25 May 2009

Immune genes adapt to parasites

Thank parasites for making some of our immune proteins into the inflammatory defenders they are today, according to a population genetics study that will appear in the June 8 issue of the Journal of Experimental Medicine (online May 25).

25 May 2009

New imaging tool helps identify DNA patterns of cancer, genetic disorders

A new tool will help researchers identify the minute changes in DNA patterns that lead to cancer, Huntington's disease and a host of other genetic disorders.

19 May 2009

Research brings quick, precise view of cell development and gene expression

A team of University of Oregon biologists, using fruit flies, has created a way to isolate RNA from specific cells, opening a new window on how gene expression drives normal development and disease-causing breakdowns.

18 May 2009

Genetic marker predicts earlier onset of prostate cancer in Caucasian men

Fox Chase Cancer Center researchers have identified a genetic marker that is associated with an earlier onset of prostate cancer in Caucasian men who have a family history of prostate cancer. If the data are confirmed, the marker may help clinicians personalize prostate cancer screening.

17 May 2009

aPKC enzyme tells stem cells which way to divide

Driving Miranda, a protein in fruit flies crucial to switch a stem cell's fate, is not as complex as biologists thought, according to University of Oregon biochemists. They've found that one enzyme (aPKC) stands alone and acts as a traffic cop that directs which roads daughter cells will take.

13 May 2009

New genetic clues to treatment of hypertension

An international research team has identified a number of unsuspected genetic variants associated with systolic blood pressure (SBP), diastolic blood pressure (DBP), and hypertension (high blood pressure), suggesting potential avenues of investigation for the prevention or treatment of hypertension.

12 May 2009

Small differences in our genes shed light on human history

By examining very small differences in people's genes, scientists from Cornell University have developed a new tool for identifying big events in human history and pinpointing the origins of specific gene mutations.

30 Apr 2009

Discovery of common genetic variation associated with colorectal cancer

Genetics plays a key role in determining risk for colorectal cancer, the second leading cause of cancer-related deaths in the United States.

23 Apr 2009

Discovery of new gene that stimulates the release of calcium in cells

International research collaborators have identified a new family of proteins, TPC2 (two-pore channels), that facilitates calcium signaling from specialized subcellular organelles.

22 Apr 2009

Common gene variant linked to development of prostate cancer

Researchers have described how a common genetic variation may be involved in the development of prostate cancer.

22 Apr 2009

Chronic lymphocytic leukemia linked to seven different gene variants

A national team of researchers led by Mayo Clinic has found that patients with chronic lymphocytic leukemia (CLL) are more likely to have similar DNA changes or variants in up to six genes, compared to people who do not have the cancer.

21 Apr 2009

Genetic variations in inflammation pathway may predict risk of invasive bladder cancer

Genetic variations in the inflammation pathway may predict who would respond to Bacillus-Calmette-Guerin (BCG) treatment and who might experience a recurrence among patients with non-muscle invasive bladder cancer, according to data presented at the American Association for Cancer Research 100th Annual Meeting 2009.

20 Apr 2009

New biomarker may predict aggressiveness of chronic lymphocytic leukemia

Scientists at the University of California, San Diego and the Moores UCSD Cancer Center have evidence of a potential new biomarker to predict the aggressiveness of an often difficult-to-treat form of leukemia.

20 Apr 2009

Research shows how p53 mutations link to high-grade breast cancer, poor outcomes

In what is believed to be the largest study of its kind in the US, researchers have found that almost 26 percent of women studied who have breast cancer have mutations in a gene important in controlling cell growth and death, and that patients with mutations in this gene - known as p53 - had poorer outcomes including a significantly increased risk of death from the cancer.

20 Apr 2009