Syndicate content Latest Science News -- ScienceDaily
Updated: 37 min 49 sec ago

Scientists find possible achilles heel of treatment resistant cancers

Mon, 20/03/2017 - 4:56pm
Scientists identify two signaling proteins in cancer cells that make them resistant to chemotherapy, and show that blocking the proteins along with chemotherapy eliminate human leukemia in mouse models. Researchers suggest that blocking the signaling proteins c-Fos and Dusp1 as part of combination therapy might cure several types of kinase-driven, treatment-resistant leukemia and solid tumor cancers.
Categories: Science

A simple fix to avoid unnecessary coronary stents is overlooked by cardiologists and current cardiovascular guidelines

Mon, 20/03/2017 - 4:56pm
Physician researchers suspect that some cases of coronary artery spasm go unrecognized and are incorrectly treated with stents. The good news – there could be a simple fix to eliminate these unnecessary stenting procedures.
Categories: Science

Gene editing technique helps find cancer's weak spots

Mon, 20/03/2017 - 4:56pm
Genetic mutations that cause cancer also weaken cancer cells, allowing researchers to develop drugs that will selectively kill them. This is called "synthetic lethality" because the drug is only lethal to mutated (synthetic) cells. Researchers have developed a method to search for synthetic-lethal gene combinations. The technique uncovered 120 new opportunities for cancer drug development.
Categories: Science

Researchers discover key to drug resistance in common breast cancer treatment

Mon, 20/03/2017 - 4:54pm
Three-quarters of all breast cancer tumors are driven by the hormone estrogen. These tumors are frequently treated with drugs to suppress estrogen receptor activity, but unfortunately, at least half of patients do not respond to these treatments, leaving them with drug-resistant tumors and few options. Now, scientists have found that two immune system molecules may be key to the development of drug resistance in estrogen-driven breast cancers.
Categories: Science

Better policy needed to protect privacy of smart TV viewers

Mon, 20/03/2017 - 4:54pm
Dutch and European policymakers should do more to protect media users’ privacy instead of leaving the matter entirely to data protection law and data protection authorities, recommend privacy experts.
Categories: Science

Enzyme function inhibits battery aging, researchers show

Mon, 20/03/2017 - 4:54pm
It has been known in biology for a long time that the excited oxygen molecule singlet oxygen is the main cause of aging in cells. To counter this, nature uses an enzyme called superoxide dismutase to eliminate superoxide as a free radical. Superoxide also occurs in cell respiration for energy production and is the preliminary stage and thus source of singlet oxygen. A study has now stumbled upon astonishing parallels of oxygen chemistry in battery systems.
Categories: Science

Novel genes identified that help suppress prostate and other cancers

Mon, 20/03/2017 - 4:54pm
New genes which help prevent prostate, skin and breast cancer development in mice have been discovered by researchers. The study identified genes that cooperate with the well-known tumor suppressor gene PTEN, and showed their relevance in human prostate tumors.
Categories: Science

'Flying saucer' quantum dots hold secret to brighter, better lasers

Mon, 20/03/2017 - 4:28pm
By carefully controlling the size of the quantum dots, researchers can 'tune' the frequency, or color, of the emitted light to any desired value. The ability to produce a laser of any desired frequency from a single material would give a boost to scientists looking to study diseases at the level of tissues or individual cells by offering new tools to probe biochemical reactions. They could also enable laser display projectors that would be brighter and more energy efficient than current LCD technology.
Categories: Science

Tracing down linear ubiquitination

Mon, 20/03/2017 - 4:28pm
Researchers have developed a novel technology to decipher the secret ubiquitin code. Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions.
Categories: Science

New catalysts mimic human vision

Mon, 20/03/2017 - 4:28pm
Light sensitive molecules trigger vision inside our retinas. This phenomenon inspired researchers to create a new family of eco-friendly catalysts activated by purple LEDs for unprecedented transformations.
Categories: Science

For this New Zealand parrot, 'laughter' is contagious

Mon, 20/03/2017 - 4:28pm
When people are feeling playful, they giggle and laugh, making others around them want to laugh and play too. Now, researchers have found that the particularly playful kea parrot from New Zealand has a 'play call' with a similarly powerful influence. When other kea hear that call, it puts them into a playful mood.
Categories: Science

Primate-parasite network analyses show how germs jump from host to host

Mon, 20/03/2017 - 4:28pm
An extensive review of research on wild primate social networks and parasites underscores the importance of super-spreaders, or central individuals that play an outsized role in transmission of a pathogen.
Categories: Science

TB/HIV co-infections up 40 percent across Europe over the last five years

Mon, 20/03/2017 - 4:03pm
New data show that new tuberculosis (TB) cases and deaths in the 53 countries of the WHO European Region declined each year by 4.3% and 8.5% respectively between 2011 and 2015. However, new TB/HIV co-infections increased by 40% over the same time period.
Categories: Science

Molecular scale transporter with a twist, powered by liquid crystal defects

Mon, 20/03/2017 - 4:03pm
New experiments, supported by a theoretical model, show how defects forming loops around twisted plastic fibers dipped in liquid crystal could be used for the transport of biochemical substances, when controlled by electric and magnetic fields. These findings have potential applications in electro-optical micromechanical and microfluidic systems.
Categories: Science

Hubble's glittering frisbee galaxy

Mon, 20/03/2017 - 4:03pm
Hubble caught a cross-section of NGC 1448, a spiral galaxy located about 50 million light-years from Earth.
Categories: Science

Unexpected, star-spangled find may lead to advanced electronics

Mon, 20/03/2017 - 4:03pm
Researchers have described a material that, when heated to about 450 degrees Celsius, transforms from an atomically thin, two-dimensional sheet into an array of one-dimensional nanowires, each just a few atoms wide. An image caught in mid-transformation looks like a tiny United States flag, and with false colors added, is arguably the world's smallest image of Old Glory, researchers said.
Categories: Science

Aligning depression treatment to patient need leads to efficient care

Mon, 20/03/2017 - 4:03pm
Not all depressed patients need intensive therapy, according to new research. Instead, prognosis can drive treatment.
Categories: Science

Healthy weight gain in infants

Mon, 20/03/2017 - 4:03pm
With nearly 10 percent of infants considered 'high weight for length,' researchers want to help babies achieve a healthy weight starting with their first months of life. Preliminary findings have shown that babies on a cow's milk formula have accelerated weight gain, compared to babies fed a hydrolyzed protein formula, who have weight gain similar to breastfed infants.
Categories: Science

Abortion restriction may have new momentum after 40 years of pervading policy

Mon, 20/03/2017 - 4:03pm
Originally a single-sentence prohibition on Medicaid funding for abortion, the Hyde Amendment has provided the blueprint for ever-expanding prohibitions on public expenditure for the procedure.
Categories: Science

Unforeseen impacts of the fair trade movement

Mon, 20/03/2017 - 4:03pm
Fair trade certified coffee is the kind of phrase that sounds good on a Whole Foods shelf, merging first world affluence with third world resource. For the average consumer, it implies fairness in labor and wealth, the idea that small producers profit directly from what they produce.
Categories: Science