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Discovery of shared biological properties among DNA variants may help identify new therapeutic targets

The discovery of shared biological properties among independent variants of DNA sequences offers the opportunity to broaden understanding of the biological basis of disease and identify new therapeutic targets, according to a collaboration between the Perelman School of Medicine at the University of Pennsylvania, the University of Arizona Health Sciences, and Vanderbilt University. The group published their findings this month in npj Genomic Medicine.

29 Apr 2016

Group of gamma-protocadherins linked with neurons help regulate growth of dendrites

When you think of a neuron, imagine a tree. A healthy brain cell indeed looks like a tree with a full canopy. There's a trunk, which is the cell's nucleus; there's a root system, embodied in a single axon; and there are the branches, called dendrites.

28 Apr 2016

New study on retroviral DNA could help improve treatments for HIV infection

When retroviruses such as HIV infect a cell, they first make a copy of their RNA genome in the form of DNA. The relatively short viral DNA strand then moves to the cell nucleus, where it inserts itself into the host cell's DNA.

27 Apr 2016

New rat study shows specific genetic factors may contribute to differences in addiction among humans

Why does one person who tries cocaine get addicted, while another might use it and then leave it alone? Why do some people who kick a drug habit manage to stay clean, while others relapse? And why do some families seem more prone to addiction than others?

27 Apr 2016

Changes in chromatin structure may promote cancer

Cancer development is a complex process involving both genetic and epigenetic changes. Genetic changes in oncogenes and tumor-suppressor genes are generally considered as primary causes, since these genes may directly regulate cellular growth. In addition, it has been found that changes in epigenetic factors, through mutation or altered gene expression, may contribute to cancer development.

26 Apr 2016

Brain chemical dopamine plays key role in representing or encoding movement

Princeton University researchers have found that dopamine - a brain chemical involved in learning, motivation and many other functions - also has a direct role in representing or encoding movement. The finding could help researchers better understand dopamine's role in movement-related disorders such as Parkinson's disease.

26 Apr 2016

Researchers unveil a secret to rich milk production in lactation

One of the secrets to rich milk production in lactation has been uncovered by researchers at the Walter and Eliza Hall Institute. Their studies have revealed that breast cells develop two nuclei as the breast switches on lactation to nurture the newborn.

25 Apr 2016

Scientists identify critical biological factor for transforming adult somatic cells into stem cells

In a new Cell Reports paper, a team led by John P. Cooke, M.D., Ph.D., of the Houston Methodist Research Institute, has identified and characterized a biological factor critical to the transformation of adult somatic cells (cells that are not sperm or egg cells) into stem cells.

22 Apr 2016

Subtle changes in protein-coding gene may cause different genetic disorders

It has been disorienting to the scientific and medical community as to why different subtle changes in a protein-coding gene causes many different genetic disorders in different patients -- including premature aging, nerve problems, heart problems and muscle problems. no other gene works like this. According to a new study, co-authored by Binghamton University faculty Eric Hoffman, it has to do with cell "commitment."

22 Apr 2016

Scientists develop CRISPRainbow to study genome structure in real time

CRISPRainbow, a new technology using CRISPR/Cas9 developed by scientists at UMass Medical School, allows researchers to tag and track up to seven different genomic locations in live cells. This labeling system, details of which were published in Nature Biotechnology, will be an invaluable tool for studying the structure of the genome in real time.

21 Apr 2016

Caltech researchers map out pathways of neurons responsible for Parkinson's motor impairments

Because billions of neurons are packed into our brain, the neuronal circuits that are responsible for controlling our behaviors are by necessity highly intermingled. This tangled web makes it complicated for scientists to determine exactly which circuits do what. Now, using two laboratory techniques pioneered in part at Caltech, Caltech researchers have mapped out the pathways of a set of neurons responsible for the kinds of motor impairments--such as difficulty walking--found in patients with Parkinson's disease.

21 Apr 2016

UNC scientists develop new optogenetic tool to study function of different proteins

Scientists at the University of North Carolina School of Medicine have developed a way to embed light-responsive switches into proteins so that researchers can use lasers to manipulate protein movement and activity within living cells and animals.

19 Apr 2016

Scientists identify key pathway that regulates 'switch' between wakefulness and sleep

Falling asleep and waking up are key transitions in everyone's day. Millions of people have trouble with these transitions - they find it hard to fall asleep or stay asleep at night, and hard to stay awake during the day. Despite decades of research, how these transitions work - the neurobiological mechanics of our circadian rhythm - has remained largely a mystery to brain scientists.

16 Apr 2016

Scientists use FAN1 knockout mice to refine detailed mechanisms involved in damaged DNA repair

Like jewels in a vault, our precious genetic material is stored in the nucleus of a cell--sequestered away from potentially damaging cellular components and toxins so that no harm can come to it. Yet over the course of a life moving through this world, our DNA does get damaged, and our cells have a host of complicated repair mechanisms to deal with such injuries.

13 Apr 2016

Six newly identified proteins may help potentially unlock new insights into aging-related diseases

A group of six newly discovered proteins may help to divulge secrets of how we age, potentially unlocking new insights into diabetes, Alzheimer's, cancer, and other aging-related diseases.

12 Apr 2016

Leica Microsystems launches new camera for imaging live cells under near-native conditions

Leica Microsystems launches the Leica DFC9000, a monochrome microscope camera with a highly sensitive third-generation sCMOS sensor. The camera enables researchers to image live cells under near-native conditions, allowing them to gain a better understanding of cellular processes and dynamics.

From Leica Microsystems GmbH 12 Apr 2016

Immune cell with 'Superman' power could lead to novel therapies for type 1 diabetes

A new study led by scientists at The Scripps Research Institute (TSRI) reveals a previously unknown type of immune cell. The discovery opens new avenues in the effort to develop novel therapies for autoimmune diseases such as type 1 diabetes.

6 Apr 2016

Scientists identify RingoA protein as key regulator of meiosis

Published today in Nature Communications, a study by scientists at the Institute for Research in Biomedicine headed by ICREA researcher Angel R. Nebreda has reported that the protein RingoA is a key regulator of meiosis--the cell division process that gives rise to ovules and sperm for sexual reproduction in mammals.

31 Mar 2016

UT Southwestern scientists discover mutation that causes X-linked reticulate pigmentary disorder

UT Southwestern Medical Center researchers have discovered a mutation that causes a rare systemic disorder known as X-linked reticulate pigmentary disorder (XLPDR) and, significantly, the unexpected cellular mechanism by which the mutation causes the disease.

29 Mar 2016

High-throughput RNA interference screen identifies potential drug target against henipaviruses

The closely related Hendra and Nipah viruses (referred to jointly as henipaviruses) are deadly cousins of the more common mumps, measles, and respiratory syncytial viruses, all members of the paramyxovirus family. Henipavirus outbreaks are on the rise, but little is known about them, partly because research has to be conducted under extreme level containment conditions.

28 Mar 2016