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Tag: "actions" at biology news

Gene controlling circadian rhythms linked to drug addiction

...eward response to cocaine, suggesting that similar actions take place in humans. Findings from the multi-cent...d the study's lead author. "It does so through its actions on dopamine pathways." Dopamine is a neurotransmitter associated with the "pleasure system" of the ...

Gap-climbing fruit flies reveal components of goal-driven behaviors

...s, contributes the most to gap-crossing. Auxiliary actions of the middle legs keep the body close to a horizo...still another group of mutants performing climbing actions at the correct position but without one of the three motor components. This goal-directed flexibilit...

Can't serve an ace? Could be muscle fatigue

...have implications for sports that required skilled actions such as serving a tennis ball, throwing a javelin or shooting a bow and arrow. He said it could also result in loss of control over stride length during running - leading to stretched hamstrings and other injuries. "When a tennis player is serving,...

Attacks of King George III's madness linked to key metabolism molecule

...lator of heme manufacture in the liver. One of its actions is controlling the activity of the ALAS-1 gene that makes a protein that's crucial to the normal manufacture of heme. A defect in this genetic signaling pathway could cause ALAS-1 to accumulate in high levels, leading to the symptoms of porphyria att...

Stem cells grown in lab mirror normal developmental steps

...d Pagani. "To understand the implications of these actions for the future, scientists look to the past to gain a better understanding of Earth's climate system under high greenhouse gas conditions." The findings were based on calibration of carbon-containing compounds produced by ancient sea surface algae th...

Invasive parasite destroying fish species

...d Pagani. "To understand the implications of these actions for the future, scientists look to the past to gain a better understanding of Earth's climate system under high greenhouse gas conditions." The findings were based on calibration of carbon-containing compounds produced by ancient sea surface algae th...

Deep sea algae connect ancient climate, carbon dioxide and vegetation

...d Pagani. "To understand the implications of these actions for the future, scientists look to the past to gain a better understanding of Earth's climate system under high greenhouse gas conditions." The findings were based on calibration of carbon-containing compounds produced by ancient sea surface algae th...

Best research work in the area of wine growing

...e suitable land irrigation policies to be made and actions carried out while taking into account the peculiarities of each variety. In concrete, at the Congress, the group received the "Amândio Galhano Prize", awarded by the Vinos Verdes Region Viticulture Commission. The V Iberian Congress of Horticultura...

Tamoxifen-like drug suggests new ways to selectively block estrogen

...s,' to all sorts of small molecules that mimic the actions of various hormones," Greene said. "We could create designer androgens for prostate cancer, or designer glucocorticoids to treat inflammation." Since "the primary regulator of cofactor recruitment is receptor conformation," added study co-author Don...

South African Tribunal Asks For Damages Estimates in GSK AIDS Drug Case

...tary damages suffered as a result of GSK's illegal actions in charging excessive AIDS drug prices in South Af...y out of reach for most of them because of pricing actions like GSK’s,?said Swazi Hlubi, Executive Director of the Network of AIDS Communities in South Africa ...

To sea or not to sea: When it comes to salmon sex, size sometimes doesn't matter

...salmon off as incapable of recovery and so justify actions and inactions that harm them, we will turn our pessimism into their reality, and that would be unforgivable." ...

Study: 'homemade' gene expression technology unreliable

...of biological mechanisms and methods to assess the actions and effects of drugs and chemicals," said Spencer, who estimates there are "hundreds, if not thousands" of laboratories around the country using DNA microarrays. Microarray platforms came into widespread use about five years ago. Pioneers in the fie...

New understanding of DNA repair may pave way to cancer treatments

...o screening for compounds that mimic the peptide's actions and to allow for further development of the peptide toward clinical assessment. "Until our recent studies, we were certain that the mechanism by which ATF2 affects melanoma growth was primarily through its established function in the regulation of p...

FDA Announces Series of Changes to the Class of Marketed Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)

...gov/cder/drug/infopage/cox2/default.htm. "Today's actions protect and advance the health of the millions of ...Merck for resumption of marketing of Vioxx. These actions are based on the available scientific data, including data accumulated since the drugs were approved...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...egions of the basal ganglia) helps to direct one's actions toward attaining one's goals. For neuroscientists," she said, "these findings about the diverse regional functions of the basal ganglia in humans have remarkable implications." "Our data even may be relevant to some forms of autism," Brown added. "S...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

...e." "Consequently," he adds, "cells control these actions as carefully as we watch our finances, which is why so many of the most potent mediations we use to care for our patients' target one or another ion channel." Goldstein's team discovered the type of ion channel known as background (or leak) potassiu...

Genetically modified rice in China benefits farmers' health, study finds

...ited a doctor, gone home to recover or taken other actions to deal with the symptoms. If they had, it was recorded as a case of pesticide-induced illness. The survey indicated that none of the farmers who had completely planted their farms to genetically modified insect-resistant rice varieties reported exp...

Measuring the impact of post-genomics on Mediterranean populations

...ch Area, as outlined in FP6. Ideas for coordinated actions (CAs), specific targeted research projects (Streps), specific support actions (SSAs) are welcomed and, according to the Genomed-Health website, all areas of the FP6 thematic prio...

HIV Patients May Be at Risk of Heart Problems When Taking Protease Inhibitor Drugs

...entricular arrhythmia. There are several specific actions physicians can take to use this new information wisely, Drs. Ackerman and Badley say. The first is to screen by electrocardiogram for heart effects in vulnerable patients. The second is to be alert for multiple drug therapy situations, because certai...

Elusive HIV shape change revealed; Key clue to how virus infects cells

...gnals a companion protein, gp41, to begin a set of actions that enable HIV's membrane to fuse with the target cell's membrane. This fusion of membranes allows HIV to enter the cell and begin replicating. The structure of gp120 after it binds to the CD4 receptor and changes its shape was solved several years...

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