A new imaging tool lets researchers watch individual neurons in the brains of living animals light up as they work together to control the animal’s behavior.
Scientists have an ambitious new strategy for untangling the evolutionary history of humans and their biological relatives: obtain, preserve, and sequence the DNA of approximately one species for each genus of living mammals, birds, reptiles, amphibians, and fish.
Variations from DNA's iconic double-helix shape transmit information about where proteins need to bind to make sure the right genes are activated or silenced during development.
New research shows that histones that escape from cells aren’t just a byproduct of sepsis, they’re a ringleader in its development.
Cutting down the amount of fat particles in cells may be an effective way to prevent the dengue fever virus from replicating and spreading.
Nueva investigación muestra que el reducir la cantidad de partículas grasas de las células podría ser una forma eficaz de evitar que el virus de la fiebre del dengue se replique y disemine.
A signaling pathway that guides the early development of animals from flies to humans also helps a regenerating flatworm orient itself from head to tail.
José A. Rodriguez, estudiante doctoral financiado por el HHMI en la Universidad de California en Los Ángeles y un equipo multidisciplinario de colegas han encontrado que el parásito Trypanasoma brucei, que causa la enfermedad africana del sueño, no se mueve en sólo una dirección como un sacacorchos.
New research by an HHMI-funded graduate students and his colleagues has overturned an 150-year-old idea of how the parasite Trypanasoma brucei moves. T. brucei causes African sleeping sickness.
Por primera vez, científicos han diagnosticado una enfermedad genética secuenciando completamente todos los genes de un paciente.
For the first time, scientists have diagnosed a genetic disease by completely sequencing all of a patient’s genes.
New research shows how the taste of carbonation is perceived.
Eight HHMI investigators honored for professional achievement in the health sciences.
New research shows that a protein that stabilizes DNA does a lot of slipping and sliding as it wrestles the molecule into place.
Thomas A. Steitz, Venkatraman Ramakrishnan y Ada E. Yonath son los galardonados con el Premio Nobel de Química de 2009 por sus estudios sobre la estructura y función del ribosoma.
Thomas A. Steitz, Venkatraman Ramakrishnan, and Ada E. Yonath awarded the 2009 Nobel Prize in Chemistry for studies of the structure and function of the ribosome.
HHMI researcher Jack Szostak wins 2009 Nobel Prize in Physiology or Medicine.
La Real Academia de Ciencias Sueca anunció que Jack W. Szostak, Elizabeth Blackburn y Carol Greider fueron galardonados con el Premio Nobel 2009 de Fisiología o Medicina el descubrimiento de cómo los cromosomas son protegidos por los telómeros y la enzima telomerasa.
A new student-produced documentary film examines the choices and experiences of graduates of Spelman College, a historically black women’s college in Atlanta, as they pursue careers in science.
Keio University honors Friedman for research on obesity.
A study examining the letters of 16 well known writers, performers, politicians, and scientists shows that the factors that determined their correspondence patterns are the same factors that shape emailing patterns today.
In evolution, proteins can’t go home again—at least not by their original route.
A new method for rapidly identifying genes that are crucial for survival of bacteria cuts the time it takes to pinpoint promising new drug targets from years to weeks.
En el mundo de aminoácidos que en su mayoría es “izquierdo”, las versiones “derechas” de algunas de estas moléculas actúan como señales que pueden estimular la adaptación de las bacterias a cambios en las condiciones ambientales.
In the overwhelmingly left-handed world of amino acids, the right-handed versions of a few such molecules act as signals that spur bacteria to adapt to changing conditions.
Fuchs to be honored for studies on the biology of mammalian skin and skin diseases.
HHMI investigators Brian Druker and Charles Sawyers will join Nicholas Lydon, formerly of Novartis, in receiving the 2009 Lasker~Debakey Clinical Medical Research Award.
A new genetically encoded switch lets researchers use light to control a cell’s shape and movement.
An innovative new health sciences curriculum at the University of Minnesota Rochester, spearheaded by HHMI Professor Claudia Neuhauser, is specially designed to integrate seemingly unrelated topics, such as biology and statistics or chemistry and ethics.
The sentinels of the immune system possess a hidden strength that may be used to improve vaccine design for tough-to-beat bugs.
The method Google uses to rank the importance of web pages can help identify the species whose extinction would most likely trigger an ecosystem’s collapse.
More than 100 elementary school teachers from the San Francisco Unified School District came together this summer to get hands-on experience on using science kits in their classrooms.
Science experiments will be taking place across Montgomery County, Maryland, as part of an initiative funded by HHMI that aims to place a highly-trained science teacher in each of the district's 130 elementary schools.
A new imaging technique will allow scientists to focus on the tiny structures that mediate communication between neurons within relatively intact samples of brain tissue.
Variations in the ways abnormal proteins fit together to form the long amyloid fibrils associated with many diseases may represent a protein-based system of inheritance that parallels the genetic code.
At the Howard Hughes Medical Institute’s Janelia Farm Research Campus in Virginia, scientists are developing innovative new technologies and pursuing ambitious scientific questions. This summer, sixteen undergraduate students are part of that mission.
Researchers have identified two molecular keys that help release salts from cells, keeping them alive in the ever-changing salinity of their environment.
Researchers have learned how a molecular switch helps the immune system to keep cancer in check by promoting the destruction of abnormal blood cells.
Interfering with communication among bacteria can prevent them from mounting a unified assault on their host.
A new study shows that most early ovarian tumors exist for years at a size that is a thousand times smaller than existing tests can detect reliably.
Un nuevo estudio muestra que la mayoría de los tumores ováricos en estadios tempranos tienen, durante años, un tamaño que es mil veces más pequeño del que los análisis existentes pueden detectar con confiabilidad.
Tiny, hair-like projections called cilia sense bitter material in the airways and help expel it.
An HHMI-funded graduate student and her colleagues have found that some chimps infected with the primate form of HIV develop AIDS-like symptoms and die early.
New clues narrow the search for the underlying cause of a serious congenital heart defect.
Brief bios of the 2009 Early Career Physician Scientists.
Eleven promising physician-scientists whose research interests range from obesity to childhood cancer will share a total of $4 million from the Howard Hughes Medical Institute.
Lung cancer cells hijack a master cellular signal and use it to seed deadly new tumors in the brain, bone marrow, and other organs.
New evidence suggests that damage to nerve cells in people with MS accumulates because the body's mechanism for repairing the nerve coating called myelin stalls out.
Researchers have identified two proteins that begin to explain how radically slashing calories leads to a longer life.
Joan Massagué honored for elucidating one of the fundamental processes that control cell division.