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Tag: "active" at biology news

Scientists find a maturity gene in fly

...s ?maturation from an immature larva to a sexually active adult. It is the first genetic mutation found to cause early maturation in fruit flies, according to a new study in the Friday June 3 issue of the journal Cell. The flies are abnormally small and die as they enter adulthood, sometimes when their head...

MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools

...s ?maturation from an immature larva to a sexually active adult. It is the first genetic mutation found to cause early maturation in fruit flies, according to a new study in the Friday June 3 issue of the journal Cell. The flies are abnormally small and die as they enter adulthood, sometimes when their head...

Freeze-dried mats of microbes awaken in Antarctic streambed

...hen the team used sandbags to divert water from an active streambed in the McMurdo Dry Valleys into the dry streambed, she said. A time series of aerial photographs, coupled with carbon isotope analyses of the cyanobacteria that measured variation in atmospheric carbon over decades, indicated the streambed ...

Drugs from the deep blue

...try department, including research on biologically active molecules and high-throughput screening techniques. Most of Molinski's samples come from sponges and tunicates, marine creatures that can neither swim away from a diver nor bite. Recently, the researchers have also begun to collect samples from cyan...

Brain networks change according to cognitive task

... data, which can only show which brain regions are active in a given task, showed two brain regions that were specifically active for each of the studied tasks: the lateral temporal cortex (LTC) for the rhyming task and the intrap...

Neurotransmitters signal aggressive cancer, offer potential for early diagnosis

...of gene sequences, to obtain information about how active each gene in tumors is. They combined the mouse data with parallel data from 182 human tumors. Then, the gene-activity data was fed into sophisticated software that supplied the researchers with a prediction about which metabolic reactions were revv...

Researchers develop new testing methods for potential monkeypox or smallpox outbreak

...ect a smallpox outbreak," said Slifka. "This is an active area of further investigation." The test even works in cases where infection may not be obvious. For instance, three of eight subjects who had previous smallpox vaccinations failed to show any outward signs of viral infection and had no noticeable d...

Techniques available to detect soil that inhibits destructive soybean pest

... richness, moisture and temperature can affect how active and numerous soybean cyst nematodes are in particular fields. "A key find was that a small amount of suppressive soil or a cyst from a suppressive soil can lower nematode numbers," Westphal said. "We promote conditions in soil to suppress the nemato...

Asian immigrants in NYC not receiving HIV education at religious institutions

...they feared they would contract HIV if they became active in HIV prevention and education. In fact, some said they believe that HIV can be contracted by sharing soap or a drinking glass with an HIV-positive person or through casual contact. Other leaders feared they would be shunned in their communities if...

Bronx Zoo bears are new Samsonite gorillas

...ters and other sources of food become a third less active and weigh up to 30 percent more than bears living under wild conditions. ...

Study hints at role of stem cell genes in testicular, breast cancers

...eir surprise, that the expression of the genes was active there, too. "We thought this was going to be a phenomenon unique to germ cell tumors," says the senior author of the study, Amander Clark, PhD, assistant research geneticist in the laboratory of co-author Renee Reijo Pera, PhD, associate professor o...

MicroRNAs have shaped the evolution of the majority of mammalian genes

...onarily conserved microRNA targets are known to be active in the processes of cell proliferation, development, and cancer," says Farh. "Our genomes have good reason to maintain the microRNA targeting sites necessary for turning down these genes at the appropriate place and time." An emerging idea is that ...

Customized gene chip provides rapid detection of genetic changes in children's cancer

...elphia. "As future research identifies other genes active in neuroblastoma, we can modify the microarray to include such regions," he added. "We have customized this tool for neuroblastoma, but the approach might also be adapted to other types of cancer in which DNA changes are important," said co-author P...

PLoS Medicine publishes first trial of effect of male circumcision on HIV infection

...ractice. The researchers offered young sexually active uncircumcised heterosexual men the chance to be circumcised and then monitored for HIV infection. The participants (3,274 men) were randomly allocated to two different groups--one group was immediately circumcised and the other group was to remain un...

HIV inserts into human genome using a DNA-associated protein

...III for hemophilia patients. HIV integrates into active transcription units on chromosomes within the nucleus of human cells. These units are sites that lead to efficient expression of the viral genome. Most HIV-infected cells in a patient will have a very short life span, a day or less. "We surmise that ...

Plant wounds trigger bacteria

... to a related protein, VirG, converting it into an active form. The new study shows that the activated form of VirG causes the tumor-inducing plasmid to replicate up to five times faster than normal by increasing the expression of a protein called RepC, which is required for replication of the plasmid. Th...

Zebrafish may hold key to improved cancer research

...ost of the carcinogens that affect humans are also active in zebrafish and can lead to the same types of can...wood stoves. University researchers have also been active in studies on dioxin and PCBs, both concerns in the process of carcinogenesis. "With zebrafish as a...

Regenerating worms help elucidate stem cell biology

... one of these genes, called smedwi-2, that was active in dividing neoblasts. Smedwi-2 belongs to the Argonaute/PIWI protein family and is most similar to PIWI proteins found in fruit flies. According to Sánchez Alvarado, PIWI proteins have been shown to play a role in regulating stem cells in plan...

Wolves' top-down effect

.... "We also found that as elk populations climbed, active beaver lodges declined, probably because beavers could no longer find sufficient trees with which to build their dams," says Hebblewhite. In addition, songbirds, such as the American Redstart, which is strongly dependent on willow, also vanished fro...

Researchers discover why melanoma is so malignant

...ts mutated form can cause in fruit flies). Slug is active in the neural crest, an early embryonic cluster of cells that eventually gives rise to a variety of cell types in the adult, including dermal melanocytes. In this early embryonic stage, Slug enables the neural crest cells to travel, and then settle, ...

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(Date:8/19/2014)... MA -- MIT chemical engineers have devised a new ... are released slowly over a few weeks. When applied ... the body to rapidly form new bone that looks ... type of coated scaffold could offer a dramatic improvement ... involves transplanting bone from another part of the patient,s ...
(Date:8/19/2014)... born with neonatal abstinence syndrome (NAS) secondary to ... going through withdrawal than others, but the underlying ... epigenetic (when genes are turned on or off) ... researchers at Boston University School of Medicine (BUSM) ... of its kind study to identify some of ...
(Date:8/19/2014)... seas during warm phases and became extinct during cold ... a link between marine crocodilian diversity and the evolution ... 140 million years. , The research, led by ... and formerly from the University of Bristol, UK is ... crocodiles are ,cold-blooded, animals that mainly live in fresh ...
Breaking Biology News(10 mins):Engineering new bone growth 2Engineering new bone growth 3In-utero methadone, Subutex exposure could alter gene expression, cause severe Neonatal Abstience Syndrome 2Evolution of marine crocodilians constrained by ocean temperatures 2
(Date:8/20/2014)... Dennis Thompson HealthDay Reporter ... birth rates fell dramatically during the past two decades, plummeting ... government report shows. An estimated 4 million fewer births ... to researchers from the U.S. Centers for Disease Control and ... me from the report," said Bill Albert, chief program officer ...
(Date:8/20/2014)... Bottom Line: Less than 42 percent of women ... and the factors associated with foregoing reconstruction included ... being older. , Author: Monica Morrow, M.D., of ... and colleagues. , Background: The Women,s Health and ... for breast reconstruction following a mastectomy. Still, most ...
(Date:8/20/2014)... vaccines is now, Free content, The time to ... commentary being published early online today in ... Yale School of Public Health write that the relentless ... outbreak represent a public health crisis that shows no ... have been developed in the last decade, yet the ...
(Date:8/20/2014)... Barbara Bronson Gray HealthDay ... Although it,s extremely rare, colds, flu and other minor ... risk for stroke in children, a new study suggests. ... stroke in the United States, said Dr. Heather Fullerton, lead ... pediatrics at the University of California, San Francisco Benioff Children,s ...
(Date:8/20/2014)... Reinberg HealthDay Reporter WEDNESDAY, ... cancer cells grow may help doctors diagnose and treat the ... investigators have found that the deadliest skin cancers occur most ... a long history of sun exposure. These lesions also ... Rapid cell growth -- called "high mitotic rate" -- ...
Breaking Medicine News(10 mins):Health News:Teen Birth Rate Has Dropped Dramatically in Last Two Decades: CDC 2Health News:Teen Birth Rate Has Dropped Dramatically in Last Two Decades: CDC 3Health News:Patient perspectives on breast reconstruction following mastectomy 2Health News:News from Annals of Internal Medicine 2Health News:Study Ties Colds, Flu to Rare Risk of Stroke in Kids 2Health News:Study Ties Colds, Flu to Rare Risk of Stroke in Kids 3Health News:High-Risk Melanomas Often on Head or Neck, Study Finds 2Health News:High-Risk Melanomas Often on Head or Neck, Study Finds 3
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