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Tag: "group" at biology news

Discovery could lead to better control of hemorrhagic fever viruses

...rs report discovering the receptor through which a group of life-threatening hemorrhagic fever viruses enter and attack the body's cells, and show that infection can be inhibited by blocking this receptor. The findings, to be published online by the journal Nature on February 7, give a clue to the high let...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...hat followed, there were seven cases of flu in the group that had not received the vaccine, compared to two cases in the group that received the smaller dose, and no cases in the group that received the larger dose. Together, t...

Study examines risk of soft tissue sarcomas in hereditary retinoblastoma survivors

...stitute in Bethesda, Md., and colleagues studied a group of 963 1-year hereditary retinoblastoma survivors to better understand the risks for specific subtypes of soft tissue sarcomas. The patients were diagnosed between 1914 and 1984 at medical centers in New York and Boston and were followed for an avera...

How appetite-stimulating brain cells work overtime during fasting

...appetite remains elevated during fasting," Diano's group concluded. "Overall, our study provides strong evidence for an interplay between local T3 production and UCP2 during fasting and reveals a central thermogenic-like mechanism in the regulation of food intake." While it is as yet unproven, the rise ...

Bacterial walls come tumbling down

...c machinery (known as PBP2) studied by Strynadka's group has two main parts: One end assembles long sugar fibers; the other end stitches them together with bits of protein to form a sturdy interlocking mesh shell. Strynadka's team has provided a long-awaited look at the portion of the enzyme used in th...

Male reindeer inflate a large air sac in the neck region to emit their hoarse rutting calls

A group of European scientists have determined that a male reindeer's air sac, influencing vocal sound and neck contour, may contribute to his sexual prowess and reproductive success. The results of this research have recently been published in Journal of An...

Fighting influenza & co. with 40,000 blood samples

...the flu vaccine is not as effective with this risk group as it is with younger people. The reason for this ...e coronavirus NL63. This virus belongs to the same group as the SARS virus, which gained notoriety during an epidemic in 2002 and 2003. The group from the Ac...

Loss of a universal tRNA feature reported

... as a computer script ?specifically written by the group ?to probe the tRNA genes in the alphaproteobacteri...of the corrected tRNAHis sequences revealed that a group of alphaproteobacteria fails to encode a G (guanylate) at the -1 position of the tRNA as all other b...

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

... Last spring, they published results from the same group of ischemic cardiomyopathy patients, showing that ...nsurers. In fact, in 2004 Medicare expanded the group of patients who were eligible for ICD therapy, leading to estimates that 50,000 new patients each ye...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...cient Hex enzyme functioning and are among a known group of about 50 diseases rooted in the inability to me... These diseases are part of a much more common group of diseases called "neurogenetic diseases". These findings contribute fundamental basic knowledge ab...

A genetic 'gang of 4' drives spread of breast cancer

...ectly on proteins produced by the genes Massagué’s group had been studying. Cetuximab is an antibody that b...assagué and his colleagues explored how the entire group of 18 genes, called the ‘lung metastasis gene-expression signature?(LMS) influenced both breast tumo...

Africa's first large-scale HIV vaccine study launches

...an independent Data and Safety Monitoring Board, a group of independent experts, not affiliated with Merck and Co. Inc, the HVTN, or the clinical trial investigators, who will carefully monitor the safety of the trial participants. A cornerstone of this vaccine trial is a commitment to the highest level ...

Newborn brains grow vision and movement regions first

... magnetic resonance imaging (MRI) scans on a large group of newborns. The results appear in the Feb. 7 issue of the Journal of Neuroscience. Funding was provided by the National Institute of Mental Health and the UNC School of Medicine. Another key finding by the UNC team is that boys, on average, are bo...

Research finds music training 'tunes' human auditory system

... are in line with previous studies by Wong and his group suggesting that musical experience can improve one’s ability to learn tone languages in adulthood and level of musical experience plays a role in the degree of activation in the auditory cortex. Wong also is a faculty member in Northwestern’s Interde...

Cold sore virus might play role in Alzheimer's disease

...s cold sores around the mouth. The findings from a group at the University of Rochester Medical Center show that the particular form of the gene that puts people at risk also creates a fertile environment for herpes in the brain, allowing the virus to be more active than other forms of the ApoE gene permit...

Radiation therapy combo cures prostate cancer long-term

...f these patients had T2b-T3 disease and the entire group had an average pre-treatment PSA of 15 ng/ml. Seed implants, also called brachytherapy, are small radioactive pellets, each about the size of a grain of rice. The seeds are inserted into the prostate through small needles during a brief outpatient...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...g the rhesus with the chimp and human genomes, the group also studied genetic variation in macaque populations, and developed a set of 'single nucleotide polymorphisms' or SNPs (single base DNA differences) that can be used for future analysis of inheritance of biomedically important traits in rhesus. The...

Cancer-killing invention also harvests stem cells

...in surfaces more strongly than other cells, King's group coated a slender plastic tube with selectin. They then did a series of lab experiments, both in vitro and in vivo using rats, with this selectin-coated tube to filter the bloodstream for stem cells. It worked, and the King Lab discovered that they ...

Bacteria control how infectious they become, study finds

... protein is unmasked and can then turn on a select group of genes. These genes let disease-causing bacteria infect their host while at the same time protecting the bacteria from the host's immune defenses. “E. coli seems to prevent RfaH from acting unless the microorganism absolutely needs it,?Artsimovi...

Reading hidden intentions in the human brain

...t plans. The findings, reported by a collaborative group led by John-Dylan Haynes of the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany, appear in Current Biology online on February 8th. Past research had indicated that activity in the area of the prefrontal cortex increas...

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