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Tag: "negative" at biology news

Quality not quantity important for immune response to HIV

...crucial and that some types of response may have a negative effect and could actually hinder the immune response. The research, a population-based study involving investigators at the University of Oxford in the UK, Partners AIDS Research Center at Massachusetts General Hospital in the US and the University o...

Cigarette smoking impedes tendon-to-bone healing

...ke. So if anything, we may have underestimated the negative effects of cigarette smoking on rotator cuff heali... have enough evidence to state that nicotine has a negative impact on healing in tendons as well as in bone." As to how nicotine works to interfere with heal...

Reading Shakespeare has dramatic effect on human brain

... happened. Instead of being confused by this in a negative sense, the brain is positively excited. The brain...c sense it registers what we call a N400 effect ?a negative wave modulation. When the brain reads a grammatically incorrect sentence it registers a P600 effect...

Wheat gene may boost foods' nutrient content

...to determine if the introduction of GPC-B1 has any negative impacts on yield or quality. The researchers hope that these efforts will soon translate into food products with enhanced nutritional value. ...

Wolves are suffering less from inbreeding than expected

...ce of this action of natural selection is that the negative effects of inbreeding are accumulating much slower than previously believed. The wolf was exterminated in the Scandinavian peninsula by the 1960-ies. The present Scandinavian population of approximately 150 animals was founded by three immigrants fr...

Got inexpensive contrast agent? Milk plays new role in imaging

... for visualization of the small intestinal wall, a negative oral contrast agent should be used. VoLumen is a barium-based oral contrast agent that works with intravenous contrast to allow better visualization of the bowel wall and clearer delineation between the bowel cavity and soft tissue. When milk is ...

MIT nanoparticles may help detect, treat tumors

...ng radiation or chemotherapy treatments that cause negative side effects such as hair loss or nausea. The researchers hold a provisional patent on their work. ...

Jefferson scientists identify gene mutation potentially involved in breast cancer initiation

...samples, none of those that were estrogen-receptor negative showed caveolin mutations. "One-third of estrogen receptor-positive patients actually had caveolin mutations, making it one of the most common mutations in that population," he says. "Usually about 70 percent of all human breast cancers are estroge...

Adults who go to bed lonely get stress hormone boost next morning

...s time to rev up to deal with loneliness and other negative experiences, according to Northwestern University'...life span. Cortisol is often characterized as a negative hormone because of evidence, mostly in animal models, that long-term elevations could be potentially...

ABCB6 is key to production of heme in hemoglobin

...onment when it should have been repulsed--like two negative poles of a magnet pushing each other apart. Our work showed that ABCB6 overcomes that problem by simply grabbing porphyrin molecules and pulling them in. "We showed that there is a dynamic relationship between ABCB6 and the levels of heme and porph...

Newborn screening can cause unnecessary parental stress

...derable parental stress, even when the baby proves negative on retesting, and that the stress could be alleviated by better education for parents and pediatricians. Psychologist Susan Waisbren, PhD and Elizabeth Gurian, MS in Children's Division of Genetics interviewed 173 families who had received false-pos...

Gardenia fruit compound starting point for diabetes therapy

...her inhibition of UCP2 itself might also have some negative consequences. In addition to the possibility of new drugs, the findings might also prove a boon to the use of Gardenia extract itself for the treatment of disease, particularly in eastern Asia, Zhang said. Irrespective of genipin's potential for c...

Cutting calories slightly can reduce aging damage

... average lifespan and significantly overturned the negative effects of cellular aging on liver function and overall health. An 8 percent reduction is the equivalent of a few hundred calories in an average human diet and moderate exercise is equivalent to taking a short walk. To reveal the workings of the bo...

MUHC announces a transplant first in Quebec

...because sequential transplants can have a profound negative effect on the heart, we decided a simultaneous implantation offered the best hope of success." The patient, Patrice Dionne, who was referred to the Institut de cardiologie de Quebec for medical evaluation for a possible heart transplant, was transfe...

Hope I die before I get old?

...telligence, Lacey says. This bias may combine with negative attitudes about aging to help explain the study's findings, she notes. Further analysis of the study data will examine the impact of individuals' core beliefs on their predictions and memory of happiness. Since completing the study, the researcher...

Some people would give life or limb not to be fat

...plicit and explicit, or unconscious and conscious, negative attitudes about obesity. The data was collected fr...Thinner people held stronger implicit and explicit negative attitudes than heavier people. Obese and very obese people exhibited only an implicit anti-fat bias,...

Plant protection from cold decoded

... the Chinese Academy of Sciences in Beijing. This negative regulator, known as high expression of osmotically...ing the plant's freezing tolerance without causing negative impacts," Zhu said. "This process should apply to all plants and can help us better use crops of sub...

Surprise finding for stretched DNA

... the stretch-torsion coupling constant of DNA is a negative value. This observation also implies that if we overwind the DNA, the molecule should get longer. Indeed, we found that Overwinding caused the DNA molecule to extend by about 0.5 nanometers per turn." To explain the overwinding, Bustamante and his...

Gene screen for breast cancer better than pathologist's 'eye'

...cer, and ruled out the disease in nearly all cases negative for cancer (92 of 93 samples, 99 percent). QM-MSP... samples known positive for cancer. Of 76 samples negative for cancer, QM-MSP concurred on 63 (83 percent). "Now that we know the screening tool is effective...

Finding paves way for better treatment of autoimmune disease

...ts with autoimmune disease to drink because of the negative health effects of regular alcohol consumption. Dr. Iwashima and his colleagues believe the best way to optimize cell percentages is to do what the body does. In fact, they already are searching for an endogenous substance that interferes with phos...

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