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Tag: "confirmed" at biology news

Viral hitchhiker inhibits Wolbachia bacteria's ability to proliferate

...ed bacterial growth. Then they bred the wasps and confirmed fewer incidences of cytoplasmic incompatibility in relation to the reduced presence of the bacteria and increased presence of the virus. "We're excited about these findings because there is a great deal of interest in deciphering the genetic and c...

Breaks in hibernation help fight bugs

...eratures, Luis explains. "Our model, which is confirmed by field data, shows that torpor patterns generally seen in some hibernating animals may be an evolutionary adaptation to help protect them from bacteria that grow well in low temperatures," says Luis. The researchers suggest that an understandi...

New egg freezing technique offers hope to hundreds of women

...he egg exterior (the zona pellucida). TEM also confirmed that some eggs, particularly those treated with EG and with the PrOH agent containing more sucrose, had vacuoles developing ?a process known as vacuolisation. Professor Nottola said: "These data suggest that frozen-thawed oocytes may look similar to...

Ammonia-loving archaea win landslide majority

.... High amounts of lipids specific to crenarchaeota confirmed the organism's presence. At Penn State, Schuster used a novel technique to directly sequence only the transcribed portion of the genomes from soil organisms, thus giving proof that crenarchaeota are in fact active and not just dormant residents i...

Study finds that a woman's chances of having twins can be modified by diet

...t breastfeeding at the time of conception. He also confirmed findings by others that identical twin sets are mo...s of twinning prior to the new study, Dr. Steinman confirmed that use of in vitro fertilization (IVF) methods increases the incidence of monozygotic twinning -- ...

Impressive new Impact Factors for BioMed Central's open-access journals

...ct Factor exceeding 3.00, open access journals are confirmed as publishing high-quality, highly cited research. Genome Biology, BioMed Central's flagship title covering biology in the post-genomic era, has been assessed as having an Impact Factor of 9.71. The journal's first Impact Factor places it in the top...

Fish virus in Northeast spreading to other fish species

...morrhagic septicemia virus (VHSV) was detected and confirmed for the first time in the Northeast in round gobies and muskellunge in June. Cornell researchers are awaiting finals results of tests on 54 fish of 10 species that indicated VHSV in smallmouth bass and burbot. To date, Cornell researchers also have t...

How IVF could be causing genetic errors in embryos

...in a mouse model, and they need to be repeated and confirmed in other strains of mice before translating to studies in humans." Other research has suggested that culturing embryos in the laboratory during IVF could be affecting embryos adversely. "Emerging new evidence shows that some neurological and behavio...

First study to show how immune cells 'speak' to each other in vivo

...arch Institute at Cedars-Sinai Medical Center have confirmed the existence of anatomical structures that channel information exchanges between a T cell and its target, an antigen-presenting brain cell, in laboratory rats. This immunologic synapse, or junction where signals are shuttled between two immune cell...

First human study confirms that immune cells can be a primary cause of bone loss in gum disease

Researchers at The Forsyth Institute have confirmed in human gingival tissue that immune cells play a ...e cells, this is the first time that this has been confirmed in human tissue samples. With this work, Forsyth scientists and colleagues hope to determine methods...

Key to early diagnosis of autism may be in the placenta

...inclusions in ASD. Volkmar said, "If the work is confirmed by the next series of studies, then the finding of trophoblast inclusions at the time of birth in the absence of any obvious genetic abnormalities would be an indication to have a child examined by a specialist to determine the presence of ASD." ...

Study finds how organs monitor themselves during early development

...processes are first discovered and which are later confirmed in humans. "Evolution works--what works for the fruit fly is the same principle that nature has put in place for us," says Dr. Gilboa. The implications of this study are not limited to the ovary, since the mechanism the scientists unearthed sheds ...

New genes implicated in rheumatoid arthritis

...stry and real-time polymerase chain reaction, they confirmed the expression of the most significantly over-expressed genes in synovial tissues. In addition, they compared gene expression in synovial tissue of the RA patients with gene expression in synovial tissue of patients with osteoarthritis (OA). ...

Chimpanzees can transmit cultural behavior to multiple 'generations'

...tial longevity of their culture. In doing so, they confirmed that a particular behavior can be transmitted accurately along a chain of up to six chimpanzees, representing six simulated generations equaling approximately 90 years of culture in the wild. A comparative benchmark study with three-year-old human ch...

New pathways for autoimmune treatment identified

...roteins, Dr. She says. Other researchers recently confirmed that the Aire gene is involved in negative selection by controlling some protein expression in the thymus, Dr. Mi says. The thymus is supposed to express most body proteins so any T cells that would react to them can be eliminated through negative se...

Scientist-astronaut sends T-cells into space

...veral space shuttle missions, including Fulford's, confirmed that T-cells do not activate properly in microgravity. "In this experiment, we're looking at why they're not working," says Hughes-Fulford. "Normally, in order for T-cells to be activated, certain genes have to be expressed in a certain order, in w...

Anti-inflammatory drug's potentially deadly side effect found to be rare

...ogressive multifocal leukoencephalopathy (PML) and confirmed the three previously identified cases of PML associated with use of the drug. One fatal and one nonfatal case of PML occurred in a trial using natalizumab as a multiple sclerosis treatment; a second fatality happened in a trial that used the drug to ...

Inflammation and drugs to control this activity studied in a variety of tumors sites

...ed a suspicious polyp in the distal colon that was confirmed by a follow-up exam. These participants were compared to 729 control subjects who had a sigmoidoscopy showing no polyps. All subjects completed questionnaires that asked about ibuprofen use and each provided a blood sample. The scientists looked at ...

AIDS-related cognitive impairment exists in two separate forms

...ible patient differentiation should, of course, be confirmed in prospective studies." Such a study is currently underway in Denmark and other Scandinavian countries, he said. Up to 1,500 patients will be enrolled and blood samples will be collected periodically, such as before and after every treatment. The f...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...ible patient differentiation should, of course, be confirmed in prospective studies." Such a study is currently underway in Denmark and other Scandinavian countries, he said. Up to 1,500 patients will be enrolled and blood samples will be collected periodically, such as before and after every treatment. The f...

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