Category: Research

They were what they ate: Pre-humans ate only forest foods

July 9, 2012

You are what you eat, as the saying goes, and that seems to have been as true 2 million years ago, when pre-human relatives were swinging through the trees and racing across the savannas of South Africa, as it is today. A study published June 27 in the journal Nature reveals that Australopithecus sediba, an […]

Researchers recommend steps to improve global road safety

July 9, 2012

Road traffic crashes kill more than 1.2 million people each year, with 90 percent of those fatalities occurring in low- and middle-income countries. Yet despite a growing body of data to support effective and proven interventions, proportional funding for implementation in developing countries has not been forthcoming, leaving a gap between evidence and action. A […]

Immune system ‘circuitry’ that kills malaria in mosquitoes ID’d

July 9, 2012

Researchers at the Johns Hopkins Malaria Research Institute have, for the first time, determined the function of a series of proteins within the mosquito that transduce a signal that enables the mosquito to fight off infection from the parasite that causes malaria in humans. Together, these proteins known as immune deficiency, or Imd, pathway signal […]

‘Huntington’s in a dish’ created to enable search for treatment

July 9, 2012

Johns Hopkins researchers, working with an international consortium, say they have generated stem cells from skin cells from a person with a severe, early-onset form of Huntington’s disease and turned them into neurons that degenerate just like those affected by the fatal inherited disorder. By creating “HD in a dish,” the researchers say they have […]

Study: Improve care, reduce high cost for Medicare beneficiaries

July 9, 2012

It’s well-known that a relatively small percentage of chronically ill patients accounts for a disproportionate amount of health care spending. Now, a multicenter study led by Johns Hopkins researcher Bruce Leff might provide insights into how to cut Medicare costs while improving health care for older adults suffering from chronic health conditions. Results of the […]

Found: Pathway for origin of most common form of brain tumor

July 9, 2012

Johns Hopkins researchers say they have discovered one of the most important cellular mechanisms driving the growth and progression of meningioma, the most common form of brain and spinal cord tumor. A report on the discovery, published in the journal Molecular Cancer Research, could lead the way to the discovery of better drugs to attack […]

Citizen science: Thousands tested their ‘gut’ sense for numbers

July 9, 2012

A first-of-its-kind study using the World Wide Web to collect data from more than 10,000 study subjects ages 11 to 85 found that humans’ inborn “number sense” improves during school years, declines during old age and remains linked throughout the entire lifespan to academic mathematics achievement. The study, led by psychologist Justin Halberda of The Johns […]

Next front in world AIDS battle: Stretching use of anti-HIV drugs

July 9, 2012

A Johns Hopkins expert in the drug treatment of HIV disease and AIDS is spearheading an international effort to radically shift the manufacturing and prescribing of combination therapies widely credited in the last decade for keeping the disease in check for 8 million of the 34 million infected people worldwide. “We can do more with less […]

Microsorting device could catch roaming cancer cells

June 25, 2012

In life, we sort soiled laundry from clean, ripe fruit from rotten. Two Johns Hopkins engineers say that they have found an easy way to use gravity or simple forces to similarly sort microscopic particles and bits of biological matter—including circulating tumor cells. In the May 25 online issue of Physical Review Letters, German Drazer, […]

JHU’s Bennett and WMAP team awarded Gruber Cosmology Prize

June 25, 2012

The Gruber Foundation announced June 20 that the 2012 Cosmology Prize will be awarded to Johns Hopkins University Professor Charles L. Bennett and the Wilkinson Microwave Anisotropy Probe space mission science team that he led. Bennett and the WMAP team are being recognized by the foundation for their transformative study of an ancient light dating […]

‘Master molecule’ may improve stem cell heart attack treatment

June 25, 2012

Johns Hopkins researchers have discovered that a single protein molecule may hold the key to turning cardiac stem cells into blood vessels or muscle tissue, a finding that may lead to better ways to treat heart attack patients. Human heart tissue does not heal well after a heart attack, instead forming debilitating scars. For reasons […]

Plan to end preventable child deaths in a generation outlined

June 25, 2012

Preventable childhood deaths caused by illnesses such as pneumonia and diarrhea can be nearly eliminated in 10 years, according to researchers from the Johns Hopkins Bloomberg School of Public Health and the National Institutes of Health. In a commentary featured in the June issue of the Journal of the American Medical Association, the researchers outline […]

New data: HIV superinfection rate comparable to initial infection

June 25, 2012

Human immunodeficiency virus superinfection may be as common as initial HIV infection and is not limited to high-risk populations, according to a new study led by researchers at the Johns Hopkins Bloomberg School of Public Health and the National Institute of Allergy and Infectious Diseases. In the first large-scale study of HIV superinfection in a […]

Paddle vs. propeller: Which competitive swimming stroke is superior?

June 25, 2012

Two swimming strokes—one that pulls through the water like a boat paddle and another that whirls to the side like a propeller—are commonly used by athletes training for the Olympic Games. (U.S. swimming trials begin today in Omaha, Neb.) But elite swimmers and their coaches have long argued over which arm motion is more likely […]

CryoPop takes first in national contest

June 11, 2012

A Johns Hopkins team took first prize in the 2012 BMEidea competition, sponsored by the National Collegiate Inventors and Innovators Alliance. The winning design, CryoPop, is a low-cost medical device that uses dry ice for the treatment of cervical precancerous lesions. Today cervical cancer kills an estimated 250,000 women, with 85 percent of the disease burden […]

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