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Tag: "than" at biology news

A gene's first 'kiss' sets off that affair known as puberty

...was no longer dormant, with levels 25-times higher than its baseline of zero. In addition to Dr. Plant, other authors of the PNAS paper are Muhammad Shahab, Ph.D., formerly a fellow working with Dr. Plant and now with the department of biological sciences at Quaidi-i-Azam University in Islamabad, Pakista...

Chemists create 'Superbowl' molecule; May lead to better health

...lecules have much greater capacity and selectivity than their predecessors and show more promise for wider...gress, with a multidisciplinary membership of more than 159,000 chemists and chemical engineers. It publishes numerous scientific journals and databases, co...

DNA Molecules Used To Assemble Nanoparticles

...rimers that can be synthesized in parallel, rather than sequentially, and then linked together in many different combinations with the DNA strands. "So it's like having a shelf full of Tinker Toys," Baker said. An array of single-functional dendrimers, such as targets, drugs, and contrast agents, and th...

Wisconsin scientists grow critical nerve cells

...cells have survived in culture in the lab for more than three months, says Xuejun Li, an assistant scientist in Zhang's group, and the lead author of the study. To determine the exact recipe for motor neuron growth, Li foraged labs worldwide to obtain the growth factors and other natural chemicals needed...

New push for public health, AIDS spending at African Union summit

...countries included in the African Union spend less than 10 per cent of their annual revenues on health, anti-AIDS and anti-HIV efforts included. Controversial drug trials, battles over patents and the fate of millions of orphans are also likely to be discussed at a summit session devoted to the fight aga...

Jump-starting T Cells In Skin Cancer

...re T cells specific for non-vaccine tumor proteins than were detected before vaccination. Vaccine-specific T cells, on the other hand, became detectable but did not expand to large numbers. Thus, reinvigoration of existing tumor-specific T cells after vaccination did not require large numbers of vaccine-s...

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

...sterol) and may have even stronger adverse effects than do saturated fats. The researchers report that wh...vity of the gene that makes PGC-1beta co-activator than did unsaturated fats. The research also showed that when the fats triggered PGC-1beta, the co-activ...

A new mechanism of regulating RNA degradation

...t regulation at the RNA level is even more complex than we first imaginated... As any dedicated video game player knows, the first requirement for using a weapon or tool is finding it. And it is no different for cell biologists and clinicians who want to take control of gene expression in cells to creat...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

...t regulation at the RNA level is even more complex than we first imaginated... As any dedicated video game player knows, the first requirement for using a weapon or tool is finding it. And it is no different for cell biologists and clinicians who want to take control of gene expression in cells to creat...

Deficient DNA Repair Capacity Associated With Increased Risk Of Breast Cancer

...epair capacity was lower in breast cancer patients than in the control subjects. Deficient DNA repair capacity was associated with a twofold increase in the risk of breast cancer. In addition, when the data were stratified into quartiles of DNA repair capacity, the risk of breast cancer was three times hi...

Spleen may be source of versatile stem cells

...able to differentiate into a widervariety of cells than can adult stem cells from bone marrow, which donot...itedStates, with an annual research budget of more than $400 million andmajor research centers in AIDS, cardiovascular research, cancer,cutaneous biology, m...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...ents are largely unexplored. The flanks are deeper than the mid-ocean ridge crest. Cooling of the tectonic plates, and the impact of the ridge flank system on the chemistry of the ocean, are fundamental global-scale processes. On dives in the submersible Alvin, Haymon and her UCSB colleagues –?Ken C. Mac...

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

... size the tissue will grow to. It also allows more than onetype of cell to be printed at once, which opens...ess).This method allows larger tissues to be grown than previously possible.The reason for this is the way in which the cells are inserted into thestructure...

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

...led precursor cells within the lining of the colon than normal mice. When these mice also carried a colon-cancer-causing genetic mutation, they developed twice as many tumors as those with normal IGF2 levels, the researchers report. "Both clinically and scientifically, this discovery should expand attent...

Novel technology detects human DNA mutations

...ion of a SNP in an unknown genotype with a greater than 99 percent confidence threshold and can be used wi...ily complex asit requires sifting through the more than one billion base pairs of DNA to find a particular base pair of interest. Once that base pair is loc...

Priming embryonic stem cells to fulfill their promise

...such amachine to spot solutions of proteins rather than DNA. The UCSDresearchers also refined other parameters so that the technique wouldbe reproducible in other research laboratories."When we talked to our colleagues, it was clear that, whether it'scells in the liver, brain, or heart, there had been no ...

Growth in the sea comes down to a struggle for iron

...uences of injecting iron into the ocean. For more than a century, oceanographers puzzled over the low abu...indeed the missing ingredient. And he went further than that. Since growing plants absorb carbon dioxide, a powerful greenhouse gas, he suggested that natur...

Lack of enzyme turns fat cells into fat burners

...dation and twofold higherrate of glucose oxidation than the normal mice.Others who participated in the research included Drs. WonKeun Oh, LutfiAbu-Elheiga, Parichher Kordari, Zeiwei Gu, Tattym Shaikenov,Subrahmanyam S. Chirala. The work was supported in part by by theClayton Foundation for Research and th...

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

... of a developing baby can occur in many ways other than inadequate nutrition of the mother. It also can oc...ct. At birth, their babies weighed 23 percent less than the control group. After delivery, all babies nursed and all mothers ate a full diet. "By the time ...

Neuronal 'traffic jam' marks early Alzheimer's disease

...on could by chance accumulate these blockages more than another," said Goldstein. "And randomly, some people would accumulate more than others, enough to cross a critical threshold and tip the scale toward disease." Goldstein emphasize...

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