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Tag: "weeks" at biology news

Scientists use gene transfer technology and common virus to block neuropathic pain

...ol and co-director of the research team. "By seven weeks after inoculation, the pain-blocking effect disappeared, but a second inoculation into the same paw re-established the effect." In previous research, Mata and Fink have used their HSV vector to deliver other neurotrophic factors and pain-suppressing...

Freeze-dried mats of microbes awaken in Antarctic streambed

...r and glacial melt water flows for only five to 12 weeks annually, said Professor Diane McKnight of CU-Boulder's Institute of Arctic and Alpine Research. Such research on life in extreme environments is of high interest to astrobiologists, who consider Antarctica's McMurdo Dry Valleys an analogue for Mars ...

Scientists use gene transfer technology and common virus to block neuropathic pain in animals

...ol and co-director of the research team. “By seven weeks after inoculation, the pain-blocking effect disappeared, but a second inoculation into the same paw re-established the effect.?/p> In previous research, Mata and Fink have used their HSV vector to deliver other neurotrophic factors and pain-suppr...

Results of world's first gene therapy trial for arthritis show approach safe, feasible

...nd then, after gene transfer, reintroduced several weeks later after intensive screening and determination ...ne of their hands and one additional joint. In the weeks prior to joint replacement surgery, synovial tissue was removed from the additional joint that requi...

Weight control protein may yield antiobesity drugs

...ne were smaller at birth than normal mice. After 5 weeks of age, however, the mice began gaining weight rap...f more than 60% higher than normal animals at 18?9 weeks of age, owing to voracious feeding. The mice also exhibited defects in the leptin signaling pathway ...

MRSA study demonstrates need for frequent hand washing and environmental disinfection in health care settings

...-acquired infections can persist for days and even weeks on environmental surfaces found in healthcare sett...MRSA survivors remained at detectable levels for 8 weeks on acrylic fingernails, 6 weeks on computer keyboard covers and 5 days on bed linen. "The results of...

Bacteria can survive for weeks on hospital surfaces

...-acquired infections can persist for days and even weeks on environmental surfaces found in healthcare sett...MRSA survivors remained at detectable levels for 8 weeks on acrylic fingernails, 6 weeks on computer keyboard covers and 5 days on bed linen. "The results of...

Use of high hydrostatic pressure to inactivate Hepatitis A virus in oysters studied

...depuration, HAV may persist in oysters for several weeks after exposure. The virus also is fairly resistant to heating and may remain viable in shellfish after up to five minutes of steaming. For these reasons, high hydrostatic pressure treatment of raw oysters is especially appealing to oyster processors...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

... treatment. Two injections at an interval of three weeks resulted in infection of all the animals with L. infantum. They were followed up for two years in order to monitor the progress of the disease. The mixture of parasite proteins proved to be especially effective, as 100% protection was obtained for th...

Aloe vera coating may prolong freshness, safety of fruits and vegetables

...ess) into Aloe vera gel and stored them for five weeks under low temperature while exposing a group of untreated table grapes to the same conditions. The colorless Aloe gel used in this study was developed through a special processing technique that maximized the amount of active compounds in the gel, Va...

Study identifies gene in mice that may control risk-taking behavior in humans

...e not possible because these mice die within a few weeks of birth. In one experiment, mice were exposed to an adverse stimulus coupled with a non-adverse stimulus, a tone followed by a mild foot shock. Normal mice crouch down and stop moving the next time they hear the tone, a physiologic response that ...

HIV Therapy Greatly Extends Life of Key T Cells, Scientists Find

...ctively dividing cells. By taking blood samples in weeks and months following the deuterium infusion and measuring the amount of deuterium remaining in the CD4+ T cell DNA at each time point, the researchers could count how many new cells were made and how long they lived. The scientists found a marked in...

Penguin chicks exposed to human visitors experience spike in stress hormone

...en the chicks were 40 to 50 days old and again two weeks before fledging, which occurs when the chick is about 75 days old. None of the chicks demonstrated an elevated baseline corticosterone level. But 30 minutes and 60 minutes after capture, newly hatched chicks regularly visited by humans had levels mo...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

...d no change in endurance performance when tested 2 weeks apart with no sprint training intervention." In ad...e (CS) activity and glycogen content after several weeks of sprint interval training with equivocal data, "we show here that the total training volume necess...

Investigating 'brain shrinkage' in alcoholics

...patial ability may continue to show impairment for weeks to months with sobriety, with prolonged sobriety these brain functions can show improvement." - Some alcoholics can achieve long-term abstinence in spite of persistent deficits in decision-making. "There is accumulating evidence that the generalize...

Gene therapy advance treats hemophilia in mouse models

... a severe to a mild form. The correction lasted 30 weeks -- the duration of the study," he added. One of the current treatments for hemophilia involves intravenously delivering recombinant (genetically engineered) human factor VIII protein to prevent bleeding episodes. However, the weekly to bi-weekly pre...

Scientists find that protein controls aging by controlling insulin

...g the Klotho gene appear normal until about 3 to 4 weeks old, and then begin showing signs of age, such as skin atrophy, osteoporosis, arteriosclerosis and emphysema. The mice died prematurely at about two months. For the current study, they created a second strain of mutant mice in which the Klotho gene...

Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory

...pressed', in them and it was found that within two weeks a very tiny proportion of cells in the embryoid bodies began to express some of the genes that are found in human primordial germ cells. Some cells also expressed proteins only found in maturing sperm. This suggests that HESCs may have the ability to...

Exercise training in ordinary people affects the activity of 500 genes

...es are activated by regular cycle training for six weeks in young healthy men. Some of these genes are most likely linked to diabetes and cardiovascular disease. These training study findings can therefore be important for the development of new treatment strategies for such diseases. Some people respond ...

Discovery of an American salamander where it shouldn't be: Korea

...gs and salamanders, who heard about the find a few weeks ago. "The closest relative to the critter they are reporting for the first time is probably here in the Pacific Northwest. So, you have a major biogeographical question: How in the world could it have gotten there? Previously unknown but still living...

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