PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Tracking Huntington's disease through brain metabolism

2013-08-29
(Press-News.org) Huntington's disease (HD) is a hereditary disorder characterized by the progressive onset of neurodegeneration. Children of HD patients have a 50% chance of inheriting the disease, but symptoms do not appear until middle age. While genetic testing reliably determines if children of HD sufferers are carriers of the disease, it cannot provide information as to when symptoms will appear. In this issue of the Journal of Clinical Investigation, David Eidelberg and colleagues at the Feinstein Institute of Medical Research, evaluated changes in the brain metabolism of a small group of preclinical HD carriers over the course of seven years and identified a metabolic network that is associated with HD progression. Measurable increases in the activity of this network were predictive of time to symptom onset. This study provides biomarkers for evaluating disease progression in HD carriers and supports incorporating this assessment into clinical trials of HD treatment.

### This study was funded by the NIH (National Institute of Neurological Disorders and Stroke, National Institute of Biomedical Imaging and Bioengineering) and CHDI Foundation Inc. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, etc.

TITLE:

Metabolic Network as a Progression Biomarker of Premanifest Huntington's Disease

AUTHOR CONTACT:

David Eidelberg
The Feinstein Institute for Medical Research, Manhasset, NY, USA
Phone: 1-516-562-2498; E-mail: david1@nshs.edu View this article at: http://www.jci.org/articles/view/69411?key=feceaf8c0c6cc9390586


ELSE PRESS RELEASES FROM THIS DATE:

On warming Antarctic Peninsula, moss and microbes reveal unprecedented ecological change

2013-08-29
By carefully analyzing a 150-year-old moss bank on the Antarctic Peninsula, researchers reporting in Current Biology, a Cell Press publication, on August 29 describe an unprecedented rate of ecological change since the 1960s driven by warming temperatures. "Whilst moss and amoebae may not be the first organisms that come to mind when considering Antarctica, they are dominant components of the year-round terrestrial ecosystem in the small ice-free zones during an austral summer," says Jessica Royles of the British Antarctic Survey and the University of Cambridge. "We ...

Study discovers gene that causes devastating mitochondrial diseases

2013-08-29
MAYWOOD, Il. – Researchers have identified a novel disease gene in which mutations cause rare but devastating genetic diseases known as mitochondrial disorders. Nine rare, disease-causing mutations of the gene, FBXL4, were found in nine affected children in seven families, including three siblings from the same family. An international team of researchers report the discovery in the American Journal of Human Genetics. The lead author is Xiaowu Gai, PhD, director of the Center for Biomedical Informatics at Loyola University Chicago Stritch School of Medicine. Mitochondrial ...

Single gene change increases mouse lifespan by 20 percent

2013-08-29
By lowering the expression of a single gene, researchers at the National Institutes of Health have extended the average lifespan of a group of mice by about 20 percent -- the equivalent of raising the average human lifespan by 16 years, from 79 to 95. The research team targeted a gene called mTOR, which is involved in metabolism and energy balance, and may be connected with the increased lifespan associated with caloric restriction. A detailed study of these mice revealed that gene-influenced lifespan extension did not affect every tissue and organ the same way. For example, ...

Neuroscientists find a key to reducing forgetting -- it's about the network

2013-08-29
A team of neuroscientists has found a key to the reduction of forgetting. Their findings, which appear in the journal Neuron, show that the better the coordination between two regions of the brain, the less likely we are to forget newly obtained information. The study was conducted at New York University by Lila Davachi, an associate professor in NYU's Department of Psychology and Center for Neural Science, and Kaia Vilberg, now a postdoctoral researcher at the University of Texas' Center for Vital Longevity and School of Behavioral and Brain Sciences in Dallas. "When ...

Study reveals why the body clock is slow to adjust to time changes

2013-08-29
New research in mice reveals why the body is so slow to recover from jet-lag and identifies a target for the development of drugs that could help us to adjust faster to changes in time zone. With funding from the Wellcome Trust and F. Hoffmann La Roche, researchers at the University of Oxford and F. Hoffmann La Roche have identified a mechanism that limits the ability of the body clock to adjust to changes in patterns of light and dark. And the team show that if you block the activity of this gene in mice, they recover faster from disturbances in their daily light/dark ...

Feinstein Institute researchers track Huntington's disease progression using PET scans

2013-08-29
MANHASSET, NY – Investigators at The Feinstein Institute for Medical Research have discovered a new way to measure the progression of Huntington's disease, using positron emission tomography (PET) to scan the brains of carriers of the gene. The findings are published in the September issue of The Journal of Clinical Investigation. Huntington's disease causes the progressive breakdown of nerve cells in the brain, which leads to impairments in movement, thinking and emotions. Most people with Huntington's disease develop signs and symptoms in their 40s or 50s, but the onset ...

Bad to the bone: some breast cancer cells are primed to thrive

2013-08-29
When a cancer cell sloughs off the edge of a tumor in the breast, it faces a tough road to survive. The cell must not only remain physically intact as it rushes through blood vessels, but it also must find a new organ to lodge itself in, take in enough nutrients and oxygen to stay alive, and begin dividing, all while escaping notice by the body's immune system. A team of Howard Hughes Medical Institute (HHMI) scientists has discovered that some loose breast cancer cells, have a leg up on survival—the genes they express make them more likely to prosper in bone tissue. ...

Scientists map molecular mechanism that may cause toxic protein buildup in dementing disorders

2013-08-29
SAN FRANCISCO, CA—August 29, 2013—There is no easy way to study diseases of the brain. Extracting brain cells, or neurons, from a living patient is difficult and risky, while examining a patient's brain post-mortem usually only reveals the disease's final stages. And animal models, while incredibly informative, have frequently fallen short during the crucial drug-development stage of research. But scientists at the Gladstone Institutes and the University of California, San Francisco (UCSF) have taken a potentially more powerful approach: an advanced stem-cell technique ...

CRISPR/Cas genome engineering system generates valuable conditional mouse models

2013-08-29
CAMBRIDGE, Mass. (August 29, 2013) – Whitehead Institute researchers have used the gene regulation system CRISPR/Cas to engineer mouse genomes containing reporter and conditional alleles in one step. Animals containing such sophisticated engineered alleles can now be made in a matter of weeks rather than years and could be used to model diseases and study gene function. "We've used CRISPR/Cas to mutate genes before, but the nature of the targeted mutations has been unpredictable," says Whitehead Founding Member Rudolf Jaenisch. "Now we can make specific deletions defined ...

Pre-pregnancy hormone testing may indicate gestational diabetes risk

2013-08-29
OAKLAND, Calif., August 29, 2013 — Overweight women with low levels of the hormone adiponectin prior to pregnancy are nearly seven times more likely to develop gestational diabetes, according to a Kaiser Permanente study published today in the journal Diabetes Care. Adiponectin protects against insulin resistance, inflammation and heart disease. Using Kaiser Permanente HealthConnect®, an electronic health records system, the researchers retrospectively identified about 4,000 women who gave voluntary blood samples between 1985 and 1996 during routine care and subsequently ...

LAST 30 PRESS RELEASES:

Study showcases resilience and rapid growth of “living rocks”

Naval Research Lab diver earns Office of Naval Research 2025 Sailor of the Year

New Mayo-led study establishes practical definition for rapidly progressive dementia

Fossil fuel industry’s “climate false solutions” reinforce its power and aggravate environmental injustice 

Researchers reveal bias in a widely used measure of algorithm performance

Alcohol causes cancer. A study from IOCB Prague confirms damage to DNA and shows how cells defend against it

Hidden viruses in wastewater treatment may shape public health risks, study finds

Unlock the power of nature: how biomass can transform climate mitigation

Biochar reshapes hidden soil microbes that capture carbon dioxide in farmland

Reducing saturated fat intake shows mortality benefit, but only in high-risk individuals

Manta rays create mobile ecosystems, study finds

Study: Mixed results in using lipoic acid to treat progressive multiple sclerosis

Norbert Holtkamp appointed director of Fermi National Accelerator Laboratory

New agentic AI platform accelerates advanced optics design

Biologists discover neurons use physical signals — not electricity — to stabilize communication

Researchers discover that a hormone can access the brain by hitchhiking

University of Oklahoma researcher awarded funding to pursue AI-powered material design

Exploring how the visual system recovers following injury

Support for parents with infants at pediatric check-ups leads to better reading and math skills in elementary school

Kids’ behavioral health is a growing share of family health costs

Day & night: Cancer disrupts the brain’s natural rhythm

COVID-19 vaccination significantly reduces risk to pregnant women and baby

The role of vaccination in maternal and perinatal outcomes associated with COVID-19 in pregnancy

Mayo Clinic smartwatch system helps parents shorten and defuse children's severe tantrums early

Behavioral health spending spikes to 40% of all children’s health expenditures, nearly doubling in a decade

Digital cognitive behavioral treatment for generalized anxiety disorder

Expenditures for pediatric behavioral health care over time and estimated family financial burden

Air conditioning in nursing homes and mortality during extreme heat

The Alps to lose a record number of glaciers in the next decade

What makes a good proton conductor?

[Press-News.org] Tracking Huntington's disease through brain metabolism