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Tag: "control" at biology news

Mouse brain tumors mimic those in human genetic disorder

...ll blood vessels in the optic nerves and chiasm as control mice.Similarly, microglia were also found in the nerve and chiasm of mutantmice prior to tumor formation."In our judgment, the fact that recruitment of new blood vessels andinfiltration of immune system cells occurs before actual tumorformation sugge...

Spider Venom Could Yield Eco-Friendly Insecticides

...rse insecticidal compounds that could do more than control agricultural pests. As researchers inventory more kinds of venom and uncover insecticide leads, they may be able to target insects that transmit new and emerging human diseases, such as Lyme disease and Rocky Mountain spotted fever (ticks) and dengue...

Gene variations explain drug dose required to control seizures

...s to better predict the dose of drugs necessary to control their seizures, suggest basic findings by research...to reach an effective dose of the medications that control seizures, said David Goldstein, Ph.D., director of the IGSP Center at Duke University Medical Center...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...ess and degeneration of the skeletal muscles which control movement. The Muscular Dystrophy Association and Genzyme Corporation supported the research. Several forms of Pompe disease affect more than 5,000 people in the U.S. If symptoms appear during infancy, the disease is usually fatal. Those for whom sy...

Enzyme shown to help protect genomic stability

...0 contributes. Enzymatic modifications to histones control DNA activation or silencing through the addition or removal of acetyl, methyl, and ubiquitin molecules in prescribed sequences and patterns. One job of Ubp10, as identified in this study, is to remove ubiquitin from certain histones where ubiquitin i...

BRCA1 causes ovarian cancer through indirect, biochemical route

...e gene would allow the cell it's in to grow out of control and create a tumor. Instead, Dubeau notes, "What w...xplains. "So we had some clues that the cells that control the menstrual cycle-the ovarian granulosa cells-have an influence on ovarian cancer." But how? Was ...

In the sea slug's defense against lobsters, confusion is key

...sulting in the usurpation of its normal behavioral control system and a confused response that facilitates th...als serve to activate nervous-system pathways that control feeding behaviors of the lobster. The inky secretion also stimulates other behaviors in the lobster,...

Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease

...d "HOX" genes, which apparently work in concert to control how we develop in the womb. Instead of being activated individually like most genes, the HOX genes appear to be turned on in groups by massive numbers of tags. HOX genes also are deeply involved in cancer, making the findings particularly important....

First 'atlas' of key brain genes could speed research on cancer, neurological diseases

...ctors.?When these genes are altered, thegenes they control can go awry, causing abnormalities in thedevelopme...f Dana-Farber.Transcription factors are genes that control the expression, oractivity, of “target?genes. These factors play a pivotal role in braindevelopment ...

New Study from Affymetrix Laboratories Points to Changing View of How Genome Works

...26,000 genes used to make proteins that ultimately control the structure and function of every cell in the body. Most disease research has focused on studying these protein-coding genes, even though they make up only about two percent of the human genome sequence. The new study by Gingeras' team did not mak...

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...andrubs will continue to be an important infection control measure, it is important to recommend or require traditional hand washing with soap and water throughout each day. Researchers first had volunteers clean their hands and then contaminated their hands with Serratia marcescens and MS2 bacteriophage. T...

Scientists develop new color-coded test for protein folding

...ticles because they are simple to prepare, easy to control and cost effective," the authors wrote. "To the best of our knowledge, however, gold nanoparticles have not been previously used to investigate the folding and unfolding of proteins." The initial batch of gold-cytochrome solution had a rosy red hue ...

Nanogen Issued Patent for Electronic Microarray With Memory

... Using local memory circuits provides for precise control of the currents delivered to individual electrodes...ng critical voltage information allows for precise control of the biological molecules during analysis and increases data management efficiency by tracking tes...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

...e tumor into mammary tissue in the mice.All of the control mice developed breast cancer but only one mouse ineach of the VRP-neu groups did. In short, 86 percent of mice thatreceived the vaccine were protected against the cancer. The experimentwas repeated numerous times with the same result, says Lachman.Re...

Scientists identify genetic pathways essential to RNA interference

...ccurs naturally in plants and animals and may help control resistance to viral infection, among other functio...ggests a potential connection between RNAi and the control of cell division in cancer." The researchers note that better understanding the mechanisms underlyi...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

...e tumor into mammary tissue in the mice.All of the control mice developed breast cancer but only one mouse ineach of the VRP-neu groups did. In short, 86 percent of mice thatreceived the vaccine were protected against the cancer. The experimentwas repeated numerous times with the same result, says Lachman.Re...

Papers of DNA Pioneer and Nobel Laureate Francis Crick Added to National Library of Medicine’s Profiles in Science Web Site

...d to developmental biology, the study of how genes control the growth and specialization of organs. In 1976, Crick moved to the Salk Institute for Biological Studies in La Jolla, California, where he took up neurobiology, his other long-standing scientific interest. He never let up in his passionate pursuit...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...nce we turn it on, it's on for life. So we have to control it, and we're working on this as we speak. But it'...hen to move. In tests with 31 monkeys, including a control group, scientists inserted copies of a gene to produce GDNF into a region in the front part of the b...

Researchers trace evolution to relatively simple genetic changes

...orm teeth, hair and sweat glands. It also seems to control the shape of - bones in the forehead and nose. No... that we have found are, we think, in the (gene's) control regions, which turns the gene on and off on cue." So it seems that evolution of the fish is based on...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...orm teeth, hair and sweat glands. It also seems to control the shape of - bones in the forehead and nose. No... that we have found are, we think, in the (gene's) control regions, which turns the gene on and off on cue." So it seems that evolution of the fish is based on...

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