The deletion of any single gene in yeast cells puts pressure on the organism’s genome to compensate, leading to a mutation in another gene. The discovery is likely applicable to human genetics and cancer, and could have significant consequences for the way genetic research is done.
Results of a Johns Hopkins study may explain why a chemotherapy drug called cyclophosphamide prevents graft-versus-host (GVHD) disease in people who receive bone marrow transplants. The experiments point to an immune system cell that evades the toxic effects of cyclophosphamide and protects patients from a lethal form of GVHD.
Researchers at Wayne State University recently received a $684,000 research grant from the Department of Defense to explore the genetic and epigenetic factors – factors that interact with genes – that might contribute to this racial/ethnic disparity in prostate cancer risk and progression.
A study led by Nancy Bergstrom, Ph.D., associate dean at The University of Texas Health Science Center at Houston (UTHealth) School of Nursing, found that nursing homes that utilize high-density foam mattresses may not need to turn residents every two hours to prevent pressure ulcers, a practice that has been used for over 50 years.
Researchers at Mayo Clinic in Florida, the University of Florida in Gainesville, and the Institute for Systems Biology in Seattle have received a $7.5 million grant from the National Institutes of Health to take a new and more expanded approach to identifying drug targets to treat and possibly prevent Alzheimer’s disease.
A $3.2 million grant from the National Cancer Institute awarded to Rutgers Cancer Institute of New Jersey research member Shawna V. Hudson, PhD, will support the development of new technology and a comprehensive education program to address the healthcare management needs of cancer survivors. The initiative involves the development of a web and ‘smart phone’ application and a health coaching component with survivors via phone conversation.
Using scores obtained from cognitive tests, Johns Hopkins researchers think they have developed a model that could help determine whether memory loss in older adults is benign or a stop on the way to Alzheimer’s disease.
A specialized type of brain cell that tamps down stem cell activity ironically, perhaps, encourages the survival of the stem cells’ progeny, Johns Hopkins researchers report. Understanding how these new brain cells “decide” whether to live or die and how to behave is of special interest because changes in their activity are linked to neurodegenerative diseases such as Alzheimer’s, mental illness and aging.
A pair of microbes on the ocean floor “eats” methane in a unique way, and a new study provides insights into their surprising nutritional requirements. Learning how these methane-munching organisms make a living in these extreme environments could provide clues about how the deep-sea environment might change in a warming world.
Scientists have identified a pathway that regulates fibrosis, suggesting a possible pharmacologic approach to treat patients with a broad range of fibrotic diseases.
An Indiana University cancer researcher has demonstrated that a particular molecule is present in the blood of most pancreatic cancer patients, suggesting it could someday be a diagnostic marker for the disease.
First randomized trial shows that texts and calls from parent coaches to young, at-risk mothers improved their parenting skills as well as their well-being and that of their children.
Stroke patients treated at hospitals with neurology residency programs are significantly more likely to get life-saving clot-busting drugs than those seen at other teaching or non-teaching hospitals, new Johns Hopkins-led research suggests.
A better understanding of the aerodynamic properties of butterfly wings may lead to improved human-made flight, according to research at The University of Alabama recently funded by NSF.
A Fred Hutchinson Cancer Research Center-led study has found that two organochlorine pesticides are associated with an increased risk of endometriosis, a condition that affects up to 10 percent of reproductive-age women.
The puzzling, apparently wasteful habit of some animals to exert force in the direction opposite of where they want to go actually has an important purpose: to increase both stability and maneuverability.
Whitehead Institute scientists report that the gene mutated in the rare hereditary disorder known as Birt-Hogg-Dubé cancer syndrome prevents activation of mTORC1, a critical nutrient-sensing and growth-regulating cellular pathway.
Researchers at the University of Michigan Comprehensive Cancer Center have identified a type of mutation that develops after breast cancer patients take anti-estrogen therapies. The mutations explain one reason why patients often become resistant to this therapy.
Our vision depends on exquisitely organized layers of cells within the eye’s retina, each with a distinct role in perception. Johns Hopkins researchers say they have taken an important step toward understanding how those cells are organized to produce what the brain “sees.” Specifically, they report identification of a gene that guides the separation of two types of motion-sensing cells, offering insight into how cellular layering develops in the retina, with possible implications for the brain’s cerebral cortex.
Researchers at Johns Hopkins say they have found that a gene already implicated in human speech disorders and epilepsy is also needed for vocalizations and synapse formation in mice. The finding, they say, adds to scientific understanding of how language develops, as well as the way synapses — the connections among brain cells that enable us to think — are formed.
Researchers from the University of Michigan Comprehensive Cancer Center have identified new proteins that control the function of critical immune cell subsets called T-cells, which are responsible for a serious and often deadly side effect of lifesaving bone marrow transplants.
University of California, Riverside neuroscientist Aaron Seitz has been awarded a five-year, $1.7 million grant by the National Institutes of Health to continue groundbreaking research that may lead to new therapies for individuals with amblyopia (lazy eye), dry macular degeneration and cataracts.
For the millions of people suffering from the intensely red, horribly itchy skin condition known as eczema, the only thing more maddening than their disease is the lack of understanding of what causes it, or makes it flare up from time to time. Now, a new finding may bring that understanding closer – and could help lead to better treatments.
Experiments by scientists at Johns Hopkins and in Boston have unraveled two biological mechanisms as the major cause of protein citrullination in rheumatoid arthritis. Protein citrullination is suspected of sparking the immune system and driving the cascade of events leading to the disease.
Scientists say they’ve produced “the clearest evidence yet” the SARS virus originated in Chinese horseshoe bats and that direct bat-to-human transmission is “plausible.” The 2002 severe acute respiratory syndrome coronavirus (SARS-CoV) pandemic was one of the most significant public health events in recent history and researchers have been studying the virus to better understand how it is transmitted to prepare for future outbreaks.
Shashank Dravid, Ph.D., received more than $400,000 from the NIH to study a protein believed to play a role in the development of autism spectrum disorders.
Vanderbilt University Medical Center will participate in a national trial to see if outcomes for critically injured patients with uncontrolled bleeding can be improved by administering plasma to these patients while in flight to the hospital. In a first-of-its-kind study, randomized patients who are at risk of hemorrhaging and flown to Vanderbilt University Hospital via LifeFlight’s Clarksville, Tenn., base could receive two units of plasma, which can improve a patient’s ability to clot and ultimately survive their injuries.
With prescription drug abuse at epidemic levels nationwide, a new study provides striking new data about the misuse of potent prescription painkillers and sedatives by teens and young adults. In all, 10.4 percent of those treated in the emergency room for any reason admitted to misusing a prescription painkiller or sedative at least once in the last year.
The NSF has awarded Johns Hopkins $3 million to build a program that will determine the effect of repeated hurricanes and heat waves on the Mid-Atlantic region and suggest ways to improve the region’s ability to withstand them.
Some of the most common vision disorders take their toll by damaging blood vessels near the retina. But it’s difficult for eye care professionals and researchers to see these vessels with standard techniques. NIH’s National Eye Institute is supporting the development of new methods to get deeper, more detailed views of the retinal vasculature.
Two subtypes of human papillomavirus (HPV) prevented by vaccines are half as likely to be found in African-American women as in white women with precancerous cervical lesions, according to researchers at Duke Medicine.
New research published in JAMA Psychiatry reveals that topiramate, a drug approved by the U.S. Food and Drug Administration (FDA) to treat epilepsy and migraine headaches, also could be the first reliable medication to help treat cocaine dependence.
An international research consortium led by investigators at Massachusetts General Hospital (MGH) and the University of Chicago has answered several questions about the genetic background of obsessive-compulsive disorder (OCD) and Tourette syndrome (TS), providing the first direct confirmation that both are highly heritable and also revealing major differences between the underlying genetic makeup of the disorders. Their report is being published in the October issue of the open-access journal PLOS Genetics.
Using a discovery platform whose components range from yeast cells to human stem cells, Whitehead Institute scientists have identified a novel Parkinson’s disease drug target and a compound capable of repairing neurons derived from Parkinson’s patients.
Our ability to hear relies on hair cells, sensory receptors that mechanically amplify low-level sound that enters the inner ear through a transduction channel. A new study in The Journal of General Physiology could help lead to a definitive identification of this mystery channel.
Just when some scientists were becoming more hopeful about finding a strategy to outwit HIV’s ability to resist, evade and otherwise survive efforts to rid it from the body, another hurdle has emerged to foil their plans, new research from Johns Hopkins shows.
University of Colorado Cancer Center study shows that breast cancer cell growth, motility and aggression is promoted by excess glucose, as experienced by patients with diabetes and metabolic syndrome. Patients with high glucose may require higher doses of the drug metformin to achieve the same anti-cancer activity as patients with normal glucose levels.
Reporting on a small preliminary study, Johns Hopkins researchers say a simple blood test based on detection of tiny epigenetic alterations may reveal the earliest signs of pancreatic cancer, a disease that is nearly always fatal because it isn’t usually discovered until it has spread to other parts of the body.
As part of the National Robotics Initiative, NIH has awarded funding for three projects to develop the next generation of robots that work cooperatively with people.
Youth obesity is associated with receptiveness to TV fast food advertising, Norris Cotton Cancer Center (NCCC) researchers found in a study published in the November issue of the American Journal of Preventive Medicine.
A team of scientists at Duke Medicine and Memorial Sloan-Kettering Cancer Center has created an artificial protein coupled with a sugar molecule that mimics a key site on the outer coat of HIV where antibodies can bind to neutralize a wide variety of HIV strains.
A novel autism intervention program using theatre to teach reciprocal communication skills is improving social deficits in adolescents with the disorder that now affects an estimated one in 88 children, Vanderbilt University researchers released today in the journal Autism Research.
Low levels of the “sunshine” vitamin D appear to increase a child’s risk of anemia, according to new research led by investigators at the Johns Hopkins Children’s Center. The study, published online Oct. 10 in the Journal of Pediatrics, is believed to be the first one to extensively explore the link between the two conditions in children.
A substance in breast milk that neutralizes HIV and may protect babies from acquiring HIV from their infected mothers has been identified for the first time by researchers at Duke Medicine.
States across the country have started to implement the Common Core State Standards for Mathematics (CCSSM). But, according to a National Science Foundation-funded study, a large majority of middle school math teachers point to the new high-stakes tests and teacher evaluations associated with the CCSSM as challenges for implementing the new standards. In fact, most teachers reported that the content of these new state assessments and the teacher evaluation systems aligned with the CCSSM will ultimately drive their classroom practices.
These are among other findings released as part of a new survey, conducted by researchers from the University of Rochester, Western Michigan University, Michigan State University, and Washington State University Tri-Cities in April and May 2013, that examines how teachers perceive the new standards, CCSSM-related assessments, and the teacher evaluation process linked to the new standards.
A new Department of Energy grant will fund research to advance an additive manufacturing technique for fabricating three-dimensional (3D) nanoscale structures from a variety of materials.