news archive genetic news - February 7, 2007

February 7, 2007

your information resource in human molecular genetics

-	Clones Are Erased And Rebuilt A cloned cell nucleus has its gene expression program wiped clean before being reprogrammed as an embryonic nucleus by the egg into which it has been transferred.
-	Diagnosis And Treatment Insights For An Unusual Childhood Cancer Syndrome An unusual case of a young girl with a colon cancer syndrome caused by recessive mutations in the mismatch repair gene MSH6 is described.
-	Release Requirements Report reveals how some viruses, such as HIV-1, must assemble and release themselves from infected host cells before invading neighboring, uninfected cells.
-	Learning To Keep Newborn Neurons Newly generated neurons are specially selected during the formation and recall of new memories.
-	The Molecules Behind Angelman Syndrome The molecular dysfunction underlying the neurological symptoms of Angelman syndrome (AS) is revealed.
-	A Tool To Delete DNA Study introduces a tool to rapidly delete regions of chromosome in mammalian cells including embryonic stem cells.
-	A Mouse Shows Us How The Brain Works A sensor that allows researchers to see signalling events between individual neurons may bring us a step closer to unravelling the mystery of how the brain processes information.
-	Not Losing Sleep Over The Orexins Study reveals a new method of promoting sleep by blocking a certain type of protein receptor.
-	Dissecting Suppressor Cell Development The development of a population of 'regulatory' immune cells is more complicated than originally thought.
-	Sun Worshipers Immune cells travel to protect the outer layers of the skin in response to sunlight-induced vitamin D.
-	Annotating The Human Genome A specific chemical signature of DNA sequences that promote the expression of nearby genes has been identified.
-	New Form Of Bone Disorder Identified Scientists have identified a new form of the bone disorder osteogenesis imperfecta, and have determined the genetic defect that underlies it.
-	Potential New Therapeutic Target In Breast Cancer Mice lacking a particular enzyme have a significant delay in developing mammary tumors, and less progression to secondary lung cancer.
-	Receptor For New World Haemorrhagic Fever Viruses Found Researchers have identified the receptor that gives New World haemorrhagic fever arenaviruses their entry point into mammalian cells.
-	New Target For Parkinson's Disease Results from a mouse study have highlighted a possible new target for treating Parkinson's disease.