Could it be another nail in the coffin for the term “prokaryotes”? Patterns of inheritance are complicated, and the microbial world is no exception. Take the Archaea: since they’re small, we often assume they have more in common with bacteria than with eukaryotes. We even lump archaea and bac... Read More
It could be a breakthrough in the hunt for an "elixir of life". Organic molecules containing a heavy isotope of hydrogen seem to resist the kind of cell damage that happens with ageing. But hang on to your moisturiser for now: the effects have been demonstrated only in yeast cells.
Free radic... Read More
Strong immunity may play a key role in determining long life, but may do so at the expense of reduced fertility, a Princeton University study has concluded.
An 11-year study of a population of wild sheep located on a remote island off the coast of Scotland that gauged the animals' susceptibil... Read More
Cholera's recent resurgence in Haiti remains something of a mystery to health experts. The island nation had been free of the disease since at least 1960 -- until the outbreak Friday. Now cholera has claimed almost 300 lives, and the World Health Organization said Wednesday the outbreak likely h... Read More
Flu season is upon us, and one casualty is the good old-fashioned handshake.
Yes, that's right. Nearly 3 in 10 Americans are reluctant to shake your hand because they fear they will catch your germs, according to a survey released Wednesday.
You see, germs lurk everywhere. As a result, 21%... Read More
The immune system works hard to keep us well physically, but might it also be partly to blame for some mental illnesses?
"The immune system may play a significant role in the development of depression," Andrew Miller, a professor of psychiatry and behavioral sciences at Emory University Schoo... Read More
Tim Austen realised that he wasn't cut out to be a scientist while growing cell cultures in the final year of his biochemistry degree. "I got in one Monday morning and discovered these really interesting things in my Petri dish," he says. "When I showed them excitedly to my colleague, he pointed... Read More
A volunteer group has been meeting up once a week to scrape gum off the streets of the Kabukicho entertainment district of Tokyo, averaging 309 specimens each time.
Kaoru Kumada, a professor at Tsukuba International University, conducted his research with the group.
His findings were repo... Read More
A new oral polio vaccine is making headlines today — and small wonder. Polio may have been wiped out in America, but that’s not true for parts of Africa. And it's there that a new vaccine may finally put an end to the crippling disease.
The bivalent oral polio vaccine, known as bOPV, immunize... Read More
Pathogenic listeria tricks intestinal cells into helping it pass through those cells to make people ill, and, if that doesn't work, the bacteria simply goes around the cells, according to a Purdue University study.
Arun Bhunia, a professor of food science, and Kristin Burkholder, a former Pur... Read More
Only a year after the swine flu pandemic led Americans to line up for flu shots, many people are now spurning vaccines, two studies suggest.
Only 37% of people plan to definitely get vaccinated this year, a Consumer Reports survey shows. About 30% say they definitely won't get a shot, while 3... Read More
It’s the stuff of doomsday movies: A new virus jumps from animals to people, with ominous possibilities.
At the California National Primate Research Center at the University of California, Davis, last year, a newly identified form of virus devastated a monkey colony and sickened a researcher,... Read More
When scientists announced in 2003 that they had finished the Human Genome Project, they were quick to clarify that sequencing of the full human genome not yet complete. As much as six percent of the genome was beyond the reach of available technology, leaving regions on the 23 pairs of human chr... Read More
Type 1 diabetes (T1D), formerly known as juvenile diabetes, is a multifactorial disease of complex etiology characterized by the autoimmune destruction of pancreatic beta cells. In addition to genetic susceptibility, it is generally accepted that environmental factors play important roles in tri... Read More
There is no question that HIV is an ugly virus in terms of human health. Each year, it infects some 2.7 million additional people and leads to some 2 million deaths from AIDS. But a new album manages to locate some sonic beauty deep in its genome. Sounds of HIV (Azica Records) by composer Alexan... Read More
Older adults who develop sepsis — a serious, widespread bacterial infection -- are at risk of declining both mentally and physically in subsequent years, a new study has found.
The researchers say their findings suggest the long-term effects of sepsis are under-recognized and could account fo... Read More
A federal advisory panel is recommending that teens get a booster dose of the vaccine against bacterial meningitis.
They made the recommendation because the vaccine doesn't work as long as expected.
Three years ago, the Advisory Committee on Immunization Practices said the meningitis vacci... Read More
Groups developing a gel to protect women from the AIDS virus say they are moving ahead to develop the product that was hailed as "groundbreaking" after a study on its effectiveness was released in July.
The developers, who met last week with the U.S. Food and Drug Administration, said the FDA... Read More
Scientists with the U.S. Department of Agriculture (USDA) are helping ensure that the smoked salmon that's always a hit at festive gatherings also is always safe to eat, including among their achievements the development of a first-of-its-kind mathematical model that food processors and others c... Read More
Eighteen people have died in the Brazilian capital after contracting a hospital superbug.
They were infected with bacteria which produce the enzyme Klebsiella pneumoniae Carbapenemase (KPC), which renders most modern antibiotics ineffective.
It tends to infect hospitalised people whose imm... Read More