Latest Molecular genetics Stories

2012-05-18 02:18:32

Genetic discovery will revolutionize understanding of gene expression Over the past decade, research in the field of epigenetics has revealed that chemically modified bases are abundant components of the human genome and has forced us to abandon the notion we've had since high school genetics that DNA consists of only four bases. Now, researchers at Weill Cornell Medical College have made a discovery that once again forces us to rewrite our textbooks. This time, however, the findings...

2012-05-03 19:25:16

Results suggest researchers implement careful quality control A team led by scientists at The Scripps Research Institute and the University of California (UC) San Diego has discovered a new type of dynamic change in human stem cells. Last year, this team reported recurrent changes in the genomes of human pluripotent stem cells as they are expanded in culture. The current report, which appears in the May 4, 2012 issue of the journal Cell Stem Cell, shows that these cells can also change...

A Needle In A Haystack: How Does A Broken DNA Molecule Get Repaired?
2012-05-03 12:56:22

Scientists from the Kavli Institute of Nanoscience at Delft University of Technology have discovered a key element in the mechanism of DNA repair. When the DNA double helix breaks, the broken end goes searching for the similar sequence and uses that as a template for repair. Using a smart new dual-molecule technique, the Delft group has now found out how the DNA molecule is able to perform this search and recognition process in such an efficient way. This week, the researchers report their...

2012-04-27 22:18:04

Novel regulatory molecules called mirror-microRNAs control multiple aspects of brain function Our genes control many aspects of who we are – from the colour of our hair to our vulnerability to certain diseases – but how are the genes, and consequently the proteins they make themselves controlled? Researchers have discovered a new group of molecules which control some of the fundamental processes behind memory function and may hold the key to developing new therapies for...

2012-04-24 23:23:25

Promising tool in the battle between pathogen and host, TAU research confirms Once considered unimportant "junk DNA," scientists have learned that non-coding RNA (ncRNA) – RNA molecules that do not translate into proteins – play a crucial role in cellular function. Mutations in ncRNA are associated with a number of conditions, such as cancer, autism, and Alzheimer's disease. Now, through the use of "deep sequencing," a technology used to sequence the genetic materials of the...

2012-04-23 13:27:59

Researchers at the Hebrew University of Jerusalem and other institutions have identified two distinguishable groups of genes: those that produce very abundant biochemical products in the cell and function properly in the majority of biological processes, and a flexible subset that might have abnormal function in a disease. They demonstrated that these two groups can be found among various organisms and cell types, including stem cells and cancer cells. One set of genes is a robust...

Blind Mice, Paralyzed Monkeys, And Regenerative Medicine
2012-04-20 05:11:49

New research reported this week illustrates some very interesting results in the field of regenerative medicine. Blind mice were able to see once more and monkeys with paralyzed hands were able to flex them again. The night-blind mice, were implanted with precursor eye cells, and in tests the mice saw well enough after the procedure to swim to a platform in dim underwater light. The monkeys studied in the research had arms which were paralyzed with nerve blocks. These monkeys were then...

Word of the Day
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.