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Tag: "intervals" at biology news

Alzheimer's cognitive decline slowed

...at screening, the time of treatment and at several intervals after treatment. Over an average post-treatment follow-up period of 22 months, the rate of decline on the MMSE among NGF-treated patients was reduced by as much as 51 percent. An additional test, called the Alzheimer's Disease Assessment Scale-Cognit...

FDA Approves New Treatment for Chronic Hepatitis B

...continue Baraclude should be monitored at repeated intervals over a period of time for liver function. Baraclude's sponsor, Bristol-Myers Squibb Company of Wallingford, Conn., has committed to conducting a large post-marketing study of Baraclude (entecavir) to evaluate the risks of cancers and liver related c...

Researchers seek to discover what really happens when a virus enters the body

...ture images of the laboratory dish at regular time intervals as the infection progresses. The images then provide Bell and Duca with information about innate immune responses to viruses. Using the NIH support of almost $400,000, Bell plans to next remove the noise from these low-resolution images, creating w...

Pregnant women at higher risk for HIV, Uganda study finds

... pregnancy and breastfeeding with the rates during intervals when pregnancy and breastfeeding were absent. The ...ors, the rate of HIV acquisition was higher during intervals of pregnancy than during breastfeeding or during intervals with neither. The results of the study sh...

Carnegie Mellon University research reveals how cells process large genes

...gators predict structures of genes that span large intervals of DNA, Lopez said. Recursive splicing relies on the unusual activity of a ratchetting point, a pattern of chemical groups (nucleotides) previously discovered within the genome by Lopez. One end of a ratchetting point contains a sequence of nucleoti...

Reversal of role for a viral protein associated with the development of lymphoma

...gators predict structures of genes that span large intervals of DNA, Lopez said. Recursive splicing relies on the unusual activity of a ratchetting point, a pattern of chemical groups (nucleotides) previously discovered within the genome by Lopez. One end of a ratchetting point contains a sequence of nucleoti...

Did humans cause ecosystem collapse in ancient Australia?

...e change. They looked at their data in 15,000-year intervals back to 140,000 years ago. The period included dramatic climate changes, but no changes in the diet and environment until an abrupt transition was noted that corresponded to the arrival of humans. "Humans are the major suspect," commented Fogel. "How...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...and mysterious, clocks -- the one governing timing intervals in the seconds to minutes range. Such interval tim...speech, I not only have to process the millisecond intervals involved in voice onset time, but also the duration of vowels and consonants. Also, to respond, I ne...

Studies on human genome variation provide insight into disease

...f polymorphisms. "Our results show that there are intervals with more frequent traffic of genetic material ?regions with higher rates of gene conversion or recombination ?that are indicative of genomic instability," explains Morrow. "With this knowledge in hand, we hope to screen our patients and identify th...

Housecat-sized Siberian tiger cubs get collared

...f polymorphisms. "Our results show that there are intervals with more frequent traffic of genetic material ?regions with higher rates of gene conversion or recombination ?that are indicative of genomic instability," explains Morrow. "With this knowledge in hand, we hope to screen our patients and identify th...

Study reveals genomics of inflammation from severe injury

...s, which were taken from the volunteers at regular intervals over 24 hours. Because this research plots the course of the inflammatory response over time, it is particularly valuable, according to Scott D. Somers, Ph.D., NIGMS program director of this glue grant. "In the case of injury, time is critical. To pr...

Study Unlocks Insects?Secret for Love in the Dark

...s, which were taken from the volunteers at regular intervals over 24 hours. Because this research plots the course of the inflammatory response over time, it is particularly valuable, according to Scott D. Somers, Ph.D., NIGMS program director of this glue grant. "In the case of injury, time is critical. To pr...

Polio vaccination strategies assessed as eradication nears

...y and colleagues tested stool specimens at various intervals following vaccination. Out of a total of 419 adults with HIV infection, no poliovirus was isolated from any of the specimens. Because of these results, it is likely that fewer than 1 percent of adults with HIV infection experience prolonged virus s...

Tracking the memory trace

...ferent areas of the brain have dominion over small intervals of time after training. One area might have dominion and then another." Others who participated in the research include Drs. Dinghui Yu and Anjana Srivatsan, both of BCM, and Scott Waddell and graduate student Alex Keene, of the University of Massac...

Whole-genome study at Johns Hopkins reveals a new gene associated with abnormal heart rhythm

...frequently in people who have longer or shorter QT intervals than in those with normal QT intervals. To do this, they examined the DNA sequences of both long and short QT people. The human genome contains 3 billion letters, known as nucleotides. Each person's genome differs from the next person's by as many as...

Ebola DNA vaccine produces immune responses in all fully vaccinated volunteers in Phase 1 trial

...ved three doses of vaccine or placebo at one-month intervals via intramuscular needleless injection. Three cohorts tested progressively higher doses of the vaccine at 2 mg (5 subjects), 4 mg (8 subjects), or 8 mg (8 subjects ?with 6 receiving the full three doses). Each cohort included two additional subjects ...

Infections could contribute to adult brain tumours

...about half of all brain tumours, at different time intervals in different geographical locations. This 'space-time clustering' of cases is a pattern typical of diseases caused by infections, adding weight to the theory that outbreaks of viruses are a potential contributory cause of brain tumours. Disease...

Bumble bees can estimate time intervals

...d ability to estimate the duration of shorter time intervals had previously been known only in humans and other...wo different intervals, bees could often time both intervals simultaneously. This research shows that the biological foundations of time perception may be found ...

Blood test predicts success of quitting smoking using the nicotine patch

...o were not smoking at the eight-week and six-month intervals following the quit date. Study participants also provided information on level of cravings for cigarettes one week after their quit date. "Using the rate of nicotine metabolism, we were able to predict the level of cravings and the efficacy of the ...

Movie spies on malaria parasite's sneaky behavior

... series of images inside living mice at one-second intervals to track the parasites' journey. By using parasites labeled with a green fluorescent marker and staining the mouse's blood vessels with a red fluorescent marker, Amino was able to record microscopic images inside the animal's liver. He found that not...

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