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Tag: "pack" at biology news

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

...ls gone wrong. Mitochondria are known as the power pack of cells, energizing them like batteries do flashlight bulbs. "There are hundreds of mitochondria, sometimes thousands, in a cell," says Gourley. "To see them in the old way requires a time-consuming process like fluorescent tagging or a chemical re...

Red delicious, Northern Spy apples have most antioxidants, chemists find

...Red Delicious, Northern Spy and Ida Red, they say, pack a greater wallop of disease-fighting antioxidants ...s could lead to the breeding of hybrid apples that pack a heftier antioxidant punch. The report appears in the June 29 issue of the American Chemical Socie...

Brain Scan Study of Smokers Reveals Signature of Craving

...moking-related images, such as others smoking or a pack of cigarettes. Smokers who noted fewer cravings showed stable brain responses to the same drug cues, despite hours of deprivation. The findings suggest important differences among smokers in brain responses that underlie the smoking habit, the rese...

Deep thinking: Scientists sequence a cold-loving marine microbe

... genes to generate polyunsaturated fatty acids and pack those acids into cell membranes, resulting in membranes that are fluid and functional--rather than a frozen chunk of biomass--below the freezing point. The genome also possesses a number of duplicated genes important to cell membrane biosynthesis. Wh...

'Underground' tunnels discovered as means for communication between immune system cells

...ted time-lapse video, the cells appear more like a pack of wild animals feeding on a carcass. But two things baffled the researchers. Dendritic cells extended their veils even before making physical contact with E. coli, yet macrophages, cells not normally picky about the antigens they engulf, were compl...

Give thanks for the cranberry, say dental researchers

...pes to isolate the compounds within the juice that pack an anti-cavity punch. The substances could then be added to toothpaste or mouth rinse directly. He is working closely with Nicholi Vorsa, Ph.D., a plant pathologist and director of the Blueberry and Cranberry Research and Extension Center at Rutgers,...

Clocking in Pillow Time without the Pillow

...very sleep hour missed adds an extra pound to your pack until it weighs you down. For people without time for a daily eight hours in the sack, drugs that counteract the effects of sleep deprivation could serve as substitutes. In a new study, Sam Deadwyler and colleagues have explored this possibility by ...

Noise And Delays Explain Why Some Genes Oscillate In Activity

...very sleep hour missed adds an extra pound to your pack until it weighs you down. For people without time for a daily eight hours in the sack, drugs that counteract the effects of sleep deprivation could serve as substitutes. In a new study, Sam Deadwyler and colleagues have explored this possibility by ...

There's something fishy about human brain evolution

...ain expansion. And how were hominid babies able to pack on the extra pounds? According to Cunnane their moms were dining on shoreline delicacies like clams and catfish. "The shores gave us food security and higher nutrient density. My hypothesis is that to permit the brain to start to increase in size, t...

Vital ocean prey play active role in environment

...sea ice for food, and as they grow they drift with pack ice. After they metamorphose in late winter and early spring, the juveniles move with the currents back to inshore waters. In summer, the juveniles are found inshore of the adults. The life cycle thus keeps krill in younger stages separate from adult...

New MRI technique shows emphysema in asymptomatic smokers

...tory greater than 18 pack-years (equivalent to one pack of cigarettes per day for 18 years) showed significant abnormalities compared to nonsmokers. CT was performed after MRI, to allow comparison between the two modalities. Even though CT is the more established modality in the investigation of lung dis...

Where have all the butterflies gone?

...in the mountains. The rain has led to a heavy snow pack in the Sierra Nevada, which typically means a good year for butterflies in the high country. Snow protects the dormant insects from cold and drying. But the snow came late in the season, meaning that many of the overwintering insects may have been ki...

Smoking changes brain chemistry

...tient's smoking history: the greater the number of pack years (one pack per day for one year equals one pack year), the lower the NAA level. "The ACC is involved in med...

New evidence of early horse domestication

...s a lot more practical and explicable if they used pack horses. Later people of the same region adopted shepherding and cattle raising, said Olsen. That created a more nomadic culture, since sheep and cattle are not well suited for sub-zero climates and therefore needed to be taken south in winter. The ...

Cigarette smoking impedes tendon-to-bone healing

...s in the bloodstream about equivalent to smoking a pack to a pack and a half of cigarettes per day. "So these would have been heavy smokers," Galatz says. "But ano...

Stanford discovery may help predict when toxoplasma can be deadly

...y what happens to make some strains of Toxoplasma pack such an extra punch. By conducting a comprehensive scan of gene sequences of Toxoplasma strains, postdoctoral scholars Jeroen Saeij, PhD, and Jon Boyle, PhD, first authors of the paper in the Dec. 15 Science, searched for the gene or genes respon...

Squid-inspired design could mean better handling of underwater vehicles

...volcanoes near Hawaii to the frigid depths beneath pack ice in the North and South poles. However, while the torpedo shape of some underwater vehicles ensures rapid deployment and high cruising speeds with minimal energy, their hydrodynamic design makes them more difficult to maneuver or dock at low spee...

The connector rotation hypothesis? Phage do not pack their DNA by rotation

...bly stage in which a powerful molecular motor must pack the DNA genome into the virus's preformed shell (t...nd colleagues were able to observe capsids as they pack their DNA to directly test the connector rotation hypothesis. They found that it is more than likely...

Scientists genetically engineer tomatoes with enhanced folate content

Leafy greens and beans aren't the only foods that pack a punch of folate, the vitamin essential for a healthy start to pregnancy. Researchers now have used genetic engineering--manipulating an organism's genes--to make tomatoes with a full day's worth of the nutrient in a single serving. The scientists ...

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(Date:4/16/2014)... A 20-year assessment of Nicaragua,s legal, artisanal green sea ... overall catch rates of turtles in what may have ... the Wildlife Conservation Society and University of Florida. , ... than 170,000 green turtles were killed between 1991 and ...
(Date:4/16/2014)... From far away, the top of a leaf looks ... exterior is actually made up of a patchwork of ... in how these cells individually take on their own ... Sampathkumar, and colleagues sought to pinpoint the shape-controlling factors ...
(Date:4/16/2014)... as Kennedy,s disease, spinal and bulbar muscular atrophy (SBMA) is ... weakness and atrophy. Researchers have long considered it to be ... in the spinal cord and brainstem that control muscle movement. ... 16, 2014 online issue of Neuron , a team ...
Breaking Biology News(10 mins):Declining catch rates in Caribbean green turtle fishery may be result of overfishing 2Declining catch rates in Caribbean green turtle fishery may be result of overfishing 3For cells, internal stress leads to unique shapes 2Mutant protein in muscle linked to neuromuscular disorder 2
(Date:4/17/2014)... The cause of neuronal death in Parkinson,s disease ... neurons may be mistaken for foreign invaders and killed ... way autoimmune diseases like type I diabetes, celiac disease, ... was published April 16, 2014, in Nature Communications ... idea in Parkinson,s disease; but if true, it could ...
(Date:4/17/2014)... discovering a new mechanism that allows blood to enter ... Irvine and the Salk Institute have opened the door ... brain damage. , A complex and devastating neurological condition, ... reason for disability in the U.S. The blood-brain barrier ... material into the brain, causing the permanent deficits in ...
(Date:4/17/2014)... Alliance, a nonprofit organization that focuses on conservation and ... examining the current state of knowledge of the deadly ... global surveillance strategies to combat the emergence of infectious ... West Africa that has claimed the lives of 122 ... According to the World Health Organization (WHO), the deadly ...
(Date:4/17/2014)... time online has the potential to ward off depression ... to research published online in The Journals ... . In the article " Internet Use and ... A Longitudinal Analysis ," the authors report that Internet ... 33 percent among their study sample. , Late-life ...
(Date:4/17/2014)... April 2014) Population Council scientists and their partners have ... and can prevent the transmission of multiple sexually transmitted ... animals: HIV, herpes simplex virus 2 (HSV-2), and human ... data that the gel is effective against multiple strains ... the vagina against all three viruses of at least ...
Breaking Medicine News(10 mins):Health News:Is Parkinson's an autoimmune disease? 2Health News:Study IDs new cause of brain bleeding immediately after stroke 2Health News:Re-emergence of Ebola focuses need for global surveillance strategies 2Health News:Re-emergence of Ebola focuses need for global surveillance strategies 3Health News:Internet use may cut retirees' depression 2Health News:Animal study provides first evidence that gel can prevent multiple virus transmission in vagina/rectum 2
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