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Tag: "preview" at biology news

How appetite-stimulating brain cells work overtime during fasting

... Mount Sinai School of Medicine in an accompanying preview article. Researchers had thought that decreased levels of the fat-produced hormone leptin alone signaled the hypothalamus that fat levels have fallen, leading hypothalamic neurons to activate a program, including hunger, to preserve energy and restor...

Zinc plays important role in brain circuitry

... circuitry in the central nervous system. In a preview of the paper in the same issue of Neuron, Alan R. Kay, Jacques Neyton, and Pierre Paoletti wrote "Undoubtedly this work is important, since it directly demonstrates that zinc acts as an endogenous modulator of synaptic transmission." They wrote that ...

Mutant mice show key autism traits

...s. Wrote Joy Greer and Anthony Wynshaw-Boris in a preview in the same issue of Neuron, "caution is warranted because there are aspects of ASD that are not recapitulated in the Pten mutants. For example, the Pten mutants do not display the expression of abnormal repetitive behaviors seen in ASD, although it ...

Possible birthplace of malignant brain tumors identified

...cture after regression of the hyperplasia." In a preview of the paper in the same issue of Neuron, Santosh Kesari and Charles D. Stiles wrote that the new findings "lend weight" to the argument that the stem cells identified by Alvarez-Buylla and his colleagues are the cells or origin for malignant gliomas...

'Prosthetic' retinal cells let blind mice see light

...r," wrote John Flannery and Kenneth Greenberg in a preview of the paper in the same issue of Neuron. "This publication is clearly a significant first step into this new field of re-engineering retinal interneurons as genetically modified 'prosthetic' cells," they wrote. Pan and his colleagues cautioned that...

'Word-vision' brain area confirmed

... like word recognition?" wondered Alex Martin in a preview of the paper in the same issue of Neuron. Nevertheless, Martin commented, Cohen and his colleagues "report a unique set of findings in favor of the existence of the VWFA that will surely add fuel to the debate." He concluded that "The single case stu...

Engineered mouse mimics cognitive aspects of schizophrenia

...e in the February 16, 2006, issue of Neuron. In a preview of the study in the same issue of Neuron, neuroscientist Solomon Snyder wrote that the researchers' findings--along with studies implicating specific genes in schizophrenia--"afford a basis for optimism" that the engineered mice could provide an anim...

How the brain learns to become addicted

...iring" of the brain into an addictive state. In a preview article on the paper in the same issue of Neuron, NIH neuroscientist Roy Wise commented that "Inasmuch as arousal or stress can trigger drug-seeking in drug-free animals, the neuroadaptations discovered by the Bonci group are important not only for h...

Random gene expression may drive HIV into hiding

...ble places might be." Commenting on the work in a preview article published in the same issue of Cell, William J. Blake and James J. Collins of the Center for Biodynamics of Boston University, wrote: "The work of Weinberger et. al. represents an important step in moving from studies that elucidate the origi...

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