Tag: "maturation" at biology news

Penn State researchers unravel key facts about how a virus exits a host cell

...amino acid polypeptide, as crucial to budding (the maturation and release of a virus from the cell surface). The...ssemble, to the site of budding (Harvard), and the maturation of Gag, the final stage in which the virus becomes infectious (NIAID). Each paper presents a slightl...

Study provides new details of 'the birth of a virus'

...encourages the virus budding (Dana-Farber) and the maturation of Gag, the final stage in which the virus becomes infectious (NIAID). Each paper presents a slightly different view of these connections. "We discovered that the late domain attracts the cellular 'machinery' that causes proteins called ubiquitins ...

Different effects of puberty on resting metabolism in white and African American children

...n the girls throughout the study. The influence of maturation on body composition and REE was apparent at a younger age in African American children because they began puberty an average of 2 years earlier than whites. In a related editorial, Dr. J. Yanovski questions whether the observed slowdown in metabo...

NHLBI study shows reduced fat intake to lower cholesterol is safe and beneficial for children

...e children's growth, nutritional status, or sexual maturation throughout the seven-year study. Furthermore, the diet helped the children significantly decrease their blood levels of low-density lipoprotein (LDL) - the "bad" cholesterol - for up to three years. "This is the first study of this size to examine ...

Georgetown University researchers discover new paradigm in cellular communication

...eorgetown. It has profound implications for normal maturation of blood vessels during development and for the formation of new blood vessels....

With its key role in plant maturation, a newfound gene could yield a novel class of genetically modified crops

...ave identified the first gene known to mediate the maturation of plants from a juvenile stage to adulthood. The...d biochemical properties of leaves, but not sexual maturation or flowering. The very first leaves that appear on a squint mutant are toothed and angular, like ma...

Study: overweight more common among early-maturing girls, especially minorities

...hether a clear relationship existed between early maturation and obesity, a link proposed by Harvard biologist Rose Frisch in the early 1970s. They analyzed information from 6,500 Asian-American, Hispanic, black and white girls who participated in the National Longitudinal Study of Adolescent Health and...

Aspirin targets key cell that triggers organ rejection and other immune responses, report University of Pittsburgh researchers in journal article

...itiating an immune response -- by preventing their maturation and hence, their ability to signal other cells to ...itic cells. They assumed that if aspirin inhibited maturation of normal dendritic cells that it would prevent their development altogether when progenitor cells w...

Cutting the risk of coronary disease - start before birth says UK doctor

...s in the hormonal systems that regulate growth and maturation and in body composition. Professor Barker said that, among men, the highest death rates from coronary heart disease were in those who were thin at birth and at one year but whose weight gain accelerated in childhood so that they had an above average ...

New epilepsy gene identified in mice

...e mice lose their susceptibility to seizure during maturation and, thus, would not respond to seizure-inducing sound. When the researchers tested young BUB/BnJ mice, all of them showed such seizures. This finding, said Ptacek, demonstrated clearly that the mass1 gene mutation caused audiogenic epilepsy. Analysi...

Research: U.S. boys also reaching puberty earlier than in past years

...ges in when children as a group begin the physical maturation of puberty are important to understand since they could reflect, in part, harmful environmental conditions such as exposure to chemical contaminants, the scientist said. Dietary and other lifestyle changes in society also could play a role. Unfortuna...

Differences in response to amphetamines found between males and females pre-puberty

...(for comparison, mice are born at a stage of brain maturation roughly comparable with a seven-month human fetus) and (2) The time of puberty when sex differences in structure, function, and behavior are manifested. The authors of the current study, Differential Sex Effects on Exploratory Behavior in Young Mice ...

Parasitic worms 'read' the bodys immune condition and reproduce accordingly

...tes as the crucial cells without which normal worm maturation and normal egg production did not take place. CD4+ cells give rise to cytokines that normally act as growth inducers, or growth factors, boosting the development of other cells of the immune system. After the parasites invade their hosts, they reach ...

Researchers distinguish new type of leukemia

...eyer. This suggests that MLL is caused by arrested maturation of lymphocytes. Once we saw that these cells were nothing like those in ALL, we understood why these children dont respond well at all to standard chemotherapy for ALL, he said. When the scientists compared the genes whose expression is most characte...

Enzyme studies at Brookhaven Lab may lead to new antiviral agents

... The protease is used by the virus to complete the maturation of newly synthesized virus particles. To explain this process, Mangel uses the example of building a cathedral around internal scaffolding. Once the cathedral is in place, the last step is to remove the scaffolding. "Similarly," says Mangel, "adenovi...

The immune system may be involved in the susceptibility to childhood attention deficit hyperactivity disorder (ADHD)

...ryonic brain development, and shown to promote the maturation of dopaminergic neurons. The authors hypothesized ...tivity may result in altered dopaminergic neuronal maturation during early brain development. Such alterations may bear direct relevance to altered dopaminergic r...

DNA arrays give clues to better vaccines

...rate new functions in the macrophage, suggesting a maturation process similar to that observed with other immune cells. Interestingly, the presence of certain bacterial components was enough to activate the alarm signal. This suggests promising new adjuvants (compounds that make a vaccine more potent by increas...

'Flap' on protein suggests new therapies for autoimmune diseases

...ural element crucial to Tall-1s ability to trigger maturation of B cells and antibody production, said Gongyi Zhang, Ph.D., Assistant Professor of Immunology at National Jewish. By removing Tall-1s unique flap, we have created a molecule that could have important therapeutic applications in lupus, rheumatoid ar...

Sturgeon researcher's vision spawns thriving industry

...it was possible to override the fish's slow sexual maturation by changing the rearing environment and hormonally inducing ovulation and sperm production. This makes captive breeding and caviar production a practical endeavor. Sturgeon and their ancestors are thought to have lived as long as 200 million years ag...

Studies of genes in mice and common worm may accelerate research on blood diseases, cancers

...known cell-division patterns that dont vary during maturation from fertilized larval egg to adult. One of the most abundant animal species on earth, the worm will eat your tomatoes, he noted, but it has also become a powerful research tool. His ongoing work, which could ultimately reveal a molecular pathway to ...

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(Date:4/17/2014)... 2014) Two recent papers by a University ... may help scientists develop treatments or vaccines for ... encephalitis and other disease-causing flaviviruses. , Jeffrey S. ... genetics at the School of Medicine and an ... Institute, and colleagues recently published articles in the ...
(Date:4/17/2014)... 2014U.S. military personnel who served in Iraq and ... brain injury (TBI) were compared to military personnel ... reasons. Differences in measures of overall disability, cognitive ... injury are reported in an article in ... Mary Ann Liebert, Inc., publishers. The article is ...
(Date:4/17/2014)... 17, 2014-- Colic affects about one in five infants ... pediatric visits during the first several months after birth. ... was showing promise; however, the April 1, 2014 issue ... Valerie) reported on a study, "Probiotics and Infant Colic," ... reuteri for infant colic did not reduce ...
(Date:4/17/2014)... An international team led by researchers at UC ... which plays a key role in cell division, also ... is the first time the complex has been shown ... cyclin B1/Cdk1 an excellent target to control cellular energy ... research was published online today in the journal ...
(Date:4/17/2014)... these days to find a colored ribbon representing a disease. ... But what color ribbon does one think of with lung ... for many suffering from the disease, black may be the ... consisting of lung cancer patients, primarily smokers between the ages ... on the stigma often felt by these patients, the emotional ...
Breaking Medicine News(10 mins):Health News:CU researchers discover target for treating dengue fever 2Health News:Long-term effects of battle-related 'blast plus impact' concussive TBI in US military 2Health News:New study says probiotic use for infant colic is not effective in reducing symptoms 2Health News:Dual role: Key cell division proteins also power up mitochondria 2Health News:Unraveling the 'black ribbon' around lung cancer 2
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