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Tag: "lasting" at biology news

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

...icides in agriculture and which also has very long lasting effects on the environment- as well as antibiotics in food. The biosensor is faster, more portable and economic than the expensive laboratory methods which are used to detect contaminants, while having a very similar sensitivity. The system has been ...

Mutation improves memory, may lead to memory-enhancing pill

...y transient phenomena—including short-term memory, lasting for minutes to hours, or the beginning stages of longer-term memory storage, lasting for one to three hours. The second component, which follows strong or repetitive training, activates...

3-D ultrasound identifies women at risk for impending preterm birth

...reterm birth is a major public health problem with lasting repercussions on families and society. The authors found that the ultrasound measurements could identify a preterm risk of delivery within five days of the measurement. "Our results suggest that examining the fetal adrenal gland at the time a woma...

Prenatal cocaine's lasting cellular effects

...prenatal cocaine exposure in rabbits causes a long lasting displacement of dopamine receptors in certain brain cells, which alters their ability to function normally. Though this effect has not yet been assessed in cocaine-exposed children, the findings give researchers a place to start looking. "The...

Natural gut hormone offers hope for new obesity drug

... need to develop an injectable form that is longer lasting and can be administered on a weekly basis to make it more practical." If successful, the proposed research may lead to a treatment within five to eight years. "It is likely that if we are successful, the treatment may be fast tracked to meet the ...

Long-term narcotics use for back pain may be ineffective and lead to abuse

...s over age 18 with non-malignant chronic back pain lasting for at least three months. The research focused on efficacy of oral, transdermal, or topical opioids, where there was no pre-existing diagnosis of opioid dependence. According to the report, opioids may be effective for the short-term (less than f...

NIH announces phase III clinical trial of creatine for Parkinson's disease

...riod of time, with a goal of finding effective and lasting treatments. NET-PD builds on a developmental research process—from laboratory research to pilot studies in a select group of patients, to the definitive phase III trial of effectiveness in people with Parkinson’s disease. "This study is an exampl...

Morphine makes lasting -- and surprising -- change in the brain

... Kauer said. "We’ve shown here that morphine makes lasting changes in the brain by blocking a mechanism that’s believed to be the key to memory making. So these findings reinforce the notion that addiction is a form of pathological learning." Kauer, a professor in the Department of Molecular Pharmacology,...

Groundbreaking Canadian asthma study

...ure is completed in three treatment sessions, each lasting less than one hour, and spaced apart by about three weeks. The procedure, like many other flexible endoscopy procedures, is done under light anesthesia, and the patient returns home the same day. The objective of the Asthma Intervention Research (...

Gene-bender proteins may sway to DNA

...st protein from bacteria and applied a laser pulse lasting about 10 billionths of a second to heat up and disturb the protein-DNA complex. They watched the dynamics of the bound DNA in response to this perturbation. Ansari's group was the first to apply the laser temperature-jump technique to study the dyn...

Climate change creates dramatic decline in red-winged black bird population

...preting the longer season as the end of the season lasting longer, when more female eggs typically hatch, so that shift has affected the population sex ratio." Over the years, Weatherhead's team has put bands on the legs of thousands of red-winged black birds in order to track their nesting habits. They w...

Hope for major advance in fighting world killer disease

...E.coli (EPEC), which causes a persistent infection lasting more than 14 days, and Shigella, the cause of dysentery - are the most deadly in terms of killing children. They cause only 20% of cases of diarrhoea but result in 60% of deaths. It is these two killers - EPEC and Shigella - that the Leicester-le...

Male circumcision reduces HIV risk, study stopped early

...lly trained practitioners. There were no severe or lasting complications from circumcision. However, 1.7 percent of surgeries resulted in mild complications, such as bleeding or infection. Bailey said that promoting circumcision in Africa must be done in conjunction with proper technical training and medi...

Research links 'ecstasy' to survival of key movement-related cells in brain

...n the replacement of those cells is key to finding lasting therapies. Lipton, director of the developmental neuroscience division in UC's psychiatry department, studies the long-term effects of abused drugs on the developing central nervous system. He noticed, during previous laboratory studies in rats, th...

Electronic chip, interacting with the brain, modifies pathways for controlling movement

... such a device can induce brain changes in monkeys lasting more than a week. Strengthening of weak connections through this mechanism may have potential in the rehabilitation of patients with brain injuries, stroke, or paralysis. The authors of study, titled "Long-Term Motor Cortex Plasticity Induced by an ...

Global warming may have damaged coral reefs forever

... decreased availability has started to have a more lasting effect on the food chain, and this effect is likely to be amplified as time goes on. Moreover, the observed decrease in herbivorous fish is a key concern as they control algal spread. Researchers speculate that the reefs' inability to reseed is d...

Five surprising facts about starvation that could change the international agenda

...genda must tackle child wasting in order to make a lasting impact on human well- being. "The problem of wasting needs to be addressed wherever it is identified, not just in emergencies," says Webb. "Wasting in emergencies represents the tip of the iceberg," write the authors. "Ironically, the international ...

Radiation-armed robot rapidly destroys human lung tumors

...the enhanced Cyberknife requires only 1-3 sessions lasting 60-90 minutes. In conventional radiotherapy, patie...s must endure dozens of radiation treatments, each lasting about 15 minutes but requiring 20-30 hospital visits. In a single treatment, Cyberknife blasts a ...

Spray-on skin relieves emotional trauma for child burn victims

...terproof and sweat-resistant, with one application lasting three to four days. Researchers at the Stuart Pegg Paediatric Burns Centre and UQ's Department of Psychiatry collaborated to evaluate the effect of Microskin on the emotional and behavioural functioning of 20 young patients with burn scarring. De...

Stem cell transplants improve recovery in animal models for stroke, cerebral palsy

...post-transplantation and the recovery was durable, lasting up to two months, which was the entire length of this study," Dr. Borlongan said. "Furthermore, animals continued to show improvement over time." In the newborn model of ischemic injury, enhanced recovery was found within two weeks. Even though les...

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