martes, 27 de agosto de 2013

NIH Research Matters - Medical Research News - National Institutes of Health (NIH)

NIH Research Matters - Medical Research News - National Institutes of Health (NIH)

August 26, 2013

Family sitting in a waiting room.

Insights Into Genetic Causes of Childhood Epilepsies

Two novel genes were linked to severe forms of childhood epilepsies. These and other findings provide opportunities for further exploring the origins and treatment of the disorders.
Left brain MRI showing larger area of color than the right.

Tumor Imaging Technique Tracks Responses to Cancer Therapies

A new technique that uses MRI image data to assess blood vessels in cancer tumors may help identify patients who would benefit from certain therapies.
Sad man

Blood Markers May Signal Suicide Risk

Scientists identified signs in blood that might help doctors identify people with suicidal feelings and thoughts. The discovery could lead to more effective interventions.

August 19, 2013

Mosquito feeding on a person.

Malaria Vaccine Found Safe and Protective

A candidate malaria vaccine is safe and protects against infection in adults, according to the results of an early-stage clinical trial.
Synapse between nerve cells.

Genes Help Predict Response to Alcoholism Treatment

A set of 5 genetic variants can help predict whether an experimental treatment for alcohol dependence will succeed.
Chromosome translocation

Cancer Chromosome Abnormalities Visualized in Living Cells

Researchers have observed for the first time how broken ends of chromosomes incorrectly reattach to each other—an abnormality common in cancer cells.

August 12, 2013

Young boys pulling on a rope in tug of war game.

How Diet and Activity Affect Weight in Children

A mathematical model simulates how weight and body fat in children respond to changes in diet and physical activity. The model may offer new insights for addressing childhood obesity.
Complex, branching blood vessels.

New Vasculitis Therapy as Effective as Standard Care

Patients with severe vasculitis get the same benefits from just 4 doses of the drug rituximab over a month as from the standard daily therapy for 18 months, a study reports.
Schizophrenia networks in the human brain

Mutated Genes in Schizophrenia Map to Brain Networks

People with schizophrenia have a high number of spontaneous mutations in genes that form a network in the front region of the brain. The findings reveal new clues about the disorder.

August 5, 2013

Friends cooling down after a workout.

Working Up a Sweat May Help Reduce Stroke Risk

New research suggests that breaking a sweat during regular physical activity may lower your risk of having a stroke.
Image of tiny blood vessels.

Stem Cells Coaxed To Create Working Blood Vessels

Scientists directed human stem cells to form tiny vascular networks that can connect to the existing circulation in mice. The technique might assist future efforts to repair and regenerate tissues and organs.
Ribbon illustration of glucagon receptor structure.

Structure of a Potential Diabetes Drug Target

Researchers have determined and analyzed the structure of the human glucagon receptor. The findings may aid in the development of drugs for type 1 and type 2 diabetes and other metabolic disorders.

July 29, 2013

Doctor using a stethoscope to examine an overweight African-American woman.

Duration of Obesity May Affect Heart Disease

How long a young adult is obese may affect heart disease risk later in life, according to new research.
Ribbon cartoon of pyramid-shaped typhoid toxin.

Novel Structure and Function of Typhoid Toxin

Scientists gained important insights into the reasons why Salmonella typhi, the cause of typhoid fever, is so dangerous.
Stem-cell-derived sensory hair cells.

Technique Forms Working Inner Ear Cells

Using an innovative 3-D culture system, researchers were able to coax mouse embryonic stem cells to form cells and structures seen in the inner ear.

July 15, 2013

Woman listening to doctor.

Urine Test Detects Kidney Transplant Rejection

Levels of certain molecules in the urine of kidney transplant recipients can provide an early sign of transplant rejection.
Sleepy senior man.

Brain Protein Affects Aging and Sleep

Researchers revealed how an aging-related protein in the brain affects sleep patterns.
Mouse brain cells with red and green, but mostly yellow strands.

Altered Protein Shapes May Explain Brain Diseases

Scientists may have uncovered a key mechanism involved in the brain degeneration seen in conditions such as Parkinson’s and Alzheimer’s disease.

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