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Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...ame stressful pregnancies. Related studies now show that stress, which is associated with increased exposure stress hormones, like cortisol, may disrupt a childs formation of a bundle of nerve cells in the brain called the suprachiasmatic nucleus which act as a signaling system that tunes the bodys ...

Researchers discover inherited mutation for leukemia

...rnal medicine and a CLL specialist. "They also show the importance of the gene in the pathogenesis of ...cipal investigator on the study. "Our findings show that it's important to look for both genetic and epigenetic alterations when identifying problem gen...

Agent slows aging in mice

... be published in August in the journal Aging Cell, show that male mice fed a normal diet and NDGA so far have survived in significantly greater numbers than mice on a normal diet. Scientists measured the difference at a point called median lifespan, when half the control mice had died of natural causes as...

Brain inflammation may be friend, not foe, for Alzheimer's patients

...ry only adds to the brain’s woes, the new findings show that the opposite may be true when it comes to Alzheimer’s disease. Perhaps inflammation is playing the role of protector and is acting more like an ambulance crew helping at the site of a road wreck, not causing the crash. The work suggests that ...

Math that powers spam filters used to understand how brain learns to move our muscles

...d Northwestern, exploited the fact that all people show similar “probable” learning patterns and use them to develop and fine tune new movements, whether babies trying to walk or stroke patients re-connecting brain-body muscle links. In their report this week in Nature Neuroscience, the team says thei...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...hers who smoke can harm their fetuses, and here we show evidence that fathers can potentially damage offspring long before they may even meet their future mate.” Males, whether they are mouse or man, generate a constant supply of new sperm from self-renewing spermatogonial stem cells. Yauk, along wit...

Researchers track how spores break out of dormant state

...anometer-wide peptidoglycan fibers. “These results show that dynamic AFM is a promising tool to investigate the formation and evolution of the bacterial cell wall,” Malkin said....

Modeling the restless brain

...iagram, its neuroanatomy. Their model also can show how slow 5- to 10-second fluctuations of activity emerge naturally from much faster, chaotic neural interactions that typically last only a few milliseconds. "Our model suggests that the cortical resting state is not time-invariant, but instead c...

Envisat captures first image of Sargassum from space

...assum lines extending over large areas of the Gulf show that in this area and season it represents a significant fraction of marine primary productivity." Marine primary production is the process by which floating vegetation, such as phytoplankton and seaweed, absorb atmospheric carbon dioxide through...

Newly found sensing system enables certain bacteria to resist human immune defenses

...on that Dr. Otto’s group is investigating. Studies show that all three components of aps must be present for the system to function and effectively protect bacteria from AMPs. “We are aware that for gram-negative bacteria, PhoP/PhoQ has been called a premier target for antimicrobial drug discovery, but...

New collaborative research reveals chimpanzees can sustain multiple-tradition cultures

...s learned,” says Dr. de Waal. “We are the first to show cultures potentially can jump from group to group if you offer chimpanzees the opportunity to watch other groups. It’s a bit like Westerners learning to eat with chopsticks."...

Dual-imaging technique useful before -- and during -- brain surgery

... surgery will be conducted. “We can essentially show patients a color-coded picture of their brain and explain to them where their tumor is in relation to areas that control critical functions like expressive speech, movement and vision,” says Leach. “This can help alleviate the patient’s apprehension ...

Breakthrough developments in rheumatoid arthritis reported

...sts worldwide, Dr. Gregersen has also been able to show that certain markers are strongly linked to certain ethnic groups and others are not. “This will help us in figuring out what exactly is going on in this illness,” he said. “It’s pretty exciting.” Early on in the rheumatoid arthritis research ga...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...er cent of all female cancers. “These findings show that many patients will have more than one skin cancer, highlighting the need to analyse both patient numbers and sample numbers to provide an accurate picture of cancer levels” says co-author Dr Susannah Hoey from the Dermatology Department at the R...

ASU research shows connection between testosterone, dietary antioxidants and bird coloration

... a stimulant to the immune system. They went on to show that carotenoids acquired from food and circulatin...one directly with antioxidants. “These findings show that there are nutrient specific mechanisms by which animals can avoid the immune costs of testoster...

Researchers reveal structure of protein altered in autism

...n. Both children and adults with autism typically show difficulties in verbal and non-verbal communication, interpersonal relationships, and leisure or play activities. Comoletti and colleagues studied the neuroligin family of proteins that are encoded by genes known to be mutated in certain patients ...

Genetic factors are linked to fever following smallpox vaccination

... fever after vaccination. It is the first study to show that fever after smallpox vaccination is associated with specific gene clusters in the interleukin-1 (IL-1) gene complex on chromosome 2 and the interleukin-18 gene on chromosome 11. The interleukins, and especially the IL-1 gene complex, are groups...

Research finds that circadian rhythms dominate all life functions

...ive change throughout the day. However, some genes show significant change in the amplitude in different organs or in response to a changing environment. "When we standardize genes onto a common scale that measures levels of expression, we could not find a single gene that did not oscillate," Ptitsyn sa...

Potent possibilities for parasite attack

...echanism for gene regulation. The genome sequences show that components for this pathway are absent from the other two Leishmania species. This pathway might serve as an experimental tool in understanding the role of the many genes whose function is unknown, by using experimentally induced RNAi to 'knock-...

Gene responsible for common hearing loss identified for first time

... “And, as further evidence, we were also able to show that a more active variant of this gene is protective against the disease.”...

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