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Tag: "day" at biology news

Effective Cancer Treatments Follow The Clock

...his is not some vague metabolic difference between day and night. This is a tangible difference in the immune system that influences sensitivity.?/p> The findings may well extend to the effects of other anti-cancer drugs, as well as to radiation therapy and may provide a rationale for adjusting the t...

Hirsute Or Hairless? Two Proteins May Spell The Difference

... they saw a spike in Snail expression on embryonic day 17.5, coinciding with hair bud formation, enhanced cell proliferation, and the down-regulation of E-cadherin. Artificially sustaining Snail expression in the skin of transgenic mice caused abnormal levels of cell proliferation in the epidermis and re...

Gene Signatures Predict Interferon Response For Multiple Sclerosis Patients

...till, these results suggest that doctors could one day tailor MS patients' treatments to their molecular profile, and perhaps take some of the uncertainty out of this capricious disease. ...

Camera Traps Catch Eye of the Tiger

...en placed in remote locations, it takes at least a day to hike to each (the team can check all 30 within a month). Cameras must be moved occasionally because the flash often alerts animals to their presence, causing those animals to avoid the area in the future. Due to the moist, hot climate of Sumatran...

Robot-based system developed at Carnegie Mellon detects life in Chile's Atacama desert

...k for further examination in the lab. On a typical day in the field, the rover woke up and followed a path designated the previous day by the remote operations science team. The rover followed a transect and stopped occasionally to per...

Insight into natural cholesterol control suggests novel cholesterol-lowering therapy

...tins--taken by an estimated 10 million people each day to protect against coronary artery disease and reduce the incidence of heart attacks--limit cholesterol synthesis by inhibiting reductase function, he said. As a result, cells take up more cholesterol from the bloodstream, lowering its concentration ...

Stem cells from brain transformed to produce insulin at Stanford

...d work with other sources of stem cells, could one day replace human islet cells in people with diabetes. Right now, people with diabetes face a lifetime of insulin injections. In rare cases, some patients can receive cell transplants from cadavers, but that source of cells is far smaller than the total ...

Increased risk of osteoporosis associated with gene that one in five people have

...t gene are breaking down estrogen rapidly from the day they are born. In that case, they would never achieve an adequate peak bone density and would lose even more bone mass after menopause. If we can catch them at an early age, we can maximize their chances to avoid osteoporosis." ...

Light therapy may combat fungal infections, new evidence suggests

...hile those infected with the normal fungus died by day 30. The finding points to novel virulence pathways, Heitman said, as the BWC1 and BWC2 mutants were not impaired for any of the characteristics previously linked to virulence. "The genes required for light sensing, while not essential for virulence...

Glow-in-the-dark zebrafish at UH hold keys to biological clocks

...was exposure to light/dark cycles after the fourth day of development, about the age when the fish start ... glow rhythmically, emitting more light during the day than during the night. The amount of light is below the level of detection by the human eye, but it ...

Marburg haemorrhagic fever in Angola update

...ved; most hospitalized patients have died within a day or two following admission. For affected communities, staff from the mobile teams, fully suited in protective gear, are seen as taking away relatives and loved ones who may never again be seen alive. WHO staff in Uige have today reported further sig...

Nanoparticles offer new hope for detection and treatment

...o the tumor," Lanza says. "You would know the same day you treated the patient and if the drug was at a therapeutic level." Using nanoparticles, drug doses could be much smaller than doses typically used in chemotherapy, making the procedure potentially much safer. "The other side of that is you have t...

Two are better than one

Cancer patients may one day benefit from treatment with mixtures of customized antibodies. In a study published recently in the Proceedings of the National Academy of Sciences (USA), a team of Weizmann Institute scientists have demonstrated how the right combination might form ...

Defenseless plants arm themselves with metals

...ications for the development of crops that may one day remove metal and other contaminants from the environment. "Our goal is to find the high-level regulator - the one gene or group of genes that turns a plant into a hyperaccumulator," said David Salt, associate professor of plant molecular physiology ...

Some Brain Cells 'Change Channels' To Fine-tune The Message

...y let researchers harness the process, perhaps one day using it to protect cells that die in Lou Gehrig's disease. Much as turning the television dial changes what comes into the living room, these brain cells are able to change what they allow in by swapping one kind of channel, or membrane opening, fo...

Technique may allow cancer patients to freeze eggs, preserving fertility before starting treatment

...r treatments, a woman can preserve the hope of one day having a baby. Freezing eggs is one thing; thawing them safely so they can lead to pregnancy is the challenge. In the past, efforts to freeze a woman's eggs, or oocytes, have not worked well because the cells are large. When the egg is thawed, ice c...

Canada approves marijuana-based pain spray

...0 Canadian men and women have the disease and each day approximately three more people are diagnosed. MS is most often diagnosed in people between the ages of 20 to 40 years of age. ...

Live vaccines more effective against horse herpes virus

...tion with fever, nasal discharge and fatigue for a day or two. The virus can also cause pregnant mares to abort, and in its severest form it can lead to neurological disorders, loss of coordination and even death. The virus is spread mainly by intimate contact between horses. Once infected, a horse carri...

Duke engineers develop new 3-D cardiac imaging probe

...phy (TEE), is conducted on hundreds of people each day in the United States. The technique entails inserting a probe down the patient's throat and behind the heart to capture ultrasound heart images. The images can reveal the condition of the heart chambers, valves, major blood vessels and heart tissue. ...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...nts, giraffes, lions and many other species gather day and night to drink or bathe during the dry Namibia...ng herds came to the waterhole five or six times a day during the experiment, sometimes as late as 2:30 a.m. Whenever a herd was spotted, the researchers s...

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