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Source Discovered for the Generation of Nerve Cells in the Brain

Researchers discovered progenitor cells which can form new glutamatergic neurons following injury to the cerebral cortex. Particularly in Alzheimer’s disease, nerve cell degeneration plays a crucial role.

Blueprint of a Minimal Cell is More Complex Than Expected

Researchers from the European Molecular Biology Laboratory provide the first comprehensive picture of a minimal cell, based on an extensive quantitative study of the biology of the bacterium that causes atypical pneumonia, Mycoplasma pneumoniae.

Slowing Evolution to Stop Drug Resistance

Infectious organisms that become resistant to antibiotics are a serious threat to human society. They are also a natural part of evolution. In a new project, researchers at the University of Gothenburg are attempting to find substances that can slow the pace of evolution, in order to ensure that the drugs of today remain effective into the future.

Cells that Control Inflammation in Chronic Disease Discovered

A new type of immune cell that can be out of control in certain chronic inflammatory diseases, worsening the symptoms of conditions like psoriasis and asthma, is described for the first time in The Journal of Clinical Investigation.

Attention Deficit & Hyperactivity in a Drosophila Memory Mutant

Attention Deficit & Hyperactivity in a Drosophila Memory Mutant

Action selection is modulated by external stimuli either directly or via memory retrieval. In a constantly changing environment, animals have evolved attention-like processes to effectively filter the incoming sensory stream. These attention-like processes, in turn, are modulated by memory. The neurobiological nature of how attention, action selection and memory are inter-connected is unknown. We describe here new phenotypes of the memory mutant radish in the fruit fly Drosophila.

KLM to Make Demonstration Flight on Bio-fuel

KLM Royal Dutch Airlines will be the first airline in the world to make a demonstration flight on bio-kerosene with a select group of passengers. This will also be the first ever flight in Europe on bio-kerosene.

QIAGEN and British Veterinary Laboratories Agency Expand Partnership in Veterinary Testing

QIAGEN announced an expansion of its strategic partnership with the United Kingdom’s Veterinary Laboratories Agency (VLA), one of the world’s leading research institutions in veterinary science.

Muscle Synergies May Be Key to Stroke Treatment

Researchers at MIT and San Camillo Hospital in Venice, Italy, have shown that motor impairments in stroke patients can be understood as impairments in specific combinations of muscle activity, known as synergies.

Remote Controlled Flies Point to What Memories are Made of

A research team genetically engineered fruit flies so that a small set of nerve cells in the brains would �fire’ in response to a flash of laser light. This showed which cells are involved in how a fruit fly learns and remembers what to avoid, and offers an exciting new opportunity to investigate how memories are formed.

Research Exchange

Publishing Data That Conform to the MIQE Guidelines

Jan 22

Minimum information for publication of Quantitative Real-Time PCR Experiments (MIQE) guidelines help researchers design qPCR experiments.

Calibration Free Analysis to Measure the Concentration of Active Proteins

Nov 23 2009

An SPR-based method, Calibration Free Concentration Analysis can be used to accurately determine the concentration of active protein in a sample, relating to the specific binding activity of the protein, and without the need for a standard.

Advances in EMCCD Technology: Making Imaging Less Arbitrary

Nov 16 2009

Recent advances in EMCCD technology have solved the problem of non-standardized measurement units by using the photoelectron to standardize imaging experiments.

10 Tips for Successful Sample Concentration and Buffer Exchange

Nov 6 2009

Centrifugal devices with ultrafiltration (UF) membrane can solve common problems researchers face when working with proteins.

Advantages of Monolithic Laser Combiner Technology in Confocal Microscopy Systems

Jan 6

Fluorescence microscopy techniques require a reliable light source at the desired wavelength or wavelengths, with minimal downtime for maintenance and alignment. Lasers are a popular light source, although the alignment and upkeep of laser combiners is a time-consuming prospect for many users.

Size-Exclusion Chromatography for Purification of Biomolecules

Dec 2 2009

Size-exclusion chromatography (SEC) is a popular method to separate biomolecules based on their size. Primarily, it is applied to the separation of biopolymers such as proteins and nucleic acids, i.e. water-soluble polymers.

Improving Separation During Electrophoresis

Dec 2 2009

SeparateIT gels represent a novel gel matrix for DNA electrophoresis. Gel polymers are arranged in a conceptually different way, in accordance with a new theoretical model of gel electrophoresis.

Improving Quality of ELISA

Dec 2 2009

Using ready-to-use ELISA kits from manufacturers is easy and convenient. Sometimes however, home-made ELISA is required because there is no kit available with the right antibodies or the characteristics of the available kits such as their limits of detection are not appropriate.

Ensuring Quality in Assays Performed with Automated Liquid Handlers

Feb 2

The focus of this presentation is to highlight the need of ensuring quality in important assays performed with automated liquid handlers. Nearly all assays performed within a laboratory are volume-dependent. In turn, all concentrations of biological and chemical components in these assays, as well as the associated dilution protocols, are volume-dependent. Because analyte concentration is volume-dependent, an assay’s results might be falsely interpreted if liquid handler variability and inaccuracies are unknown or if the system(s) go unchecked for a long period.

Inkjet System for Protein Crystallography

Feb 1

X-ray crystallography is used routinely by scientists to obtain the three dimensional structure of a biological molecule of interest.Such information can be used to determine how a pharmaceutical interacts with a protein target and what changes might improve functionality. However, the crystallization of macromolecules still remains a serious hindrance in structural determination despite impressive advances in screening methods and technologies.

Attention Deficit & Hyperactivity in a Drosophila Memory Mutant

Attention Deficit & Hyperactivity in a Drosophila Memory Mutant

Nov 9 2009

Action selection is modulated by external stimuli either directly or via memory retrieval. In a constantly changing environment, animals have evolved attention-like processes to effectively filter the incoming sensory stream. These attention-like processes, in turn, are modulated by memory. The neurobiological nature of how attention, action selection and memory are inter-connected is unknown. We describe here new phenotypes of the memory mutant radish in the fruit fly Drosophila.

Mechanisms of plasticity in simple taxis behaviors in Drosophila

Nov 8 2009

Like the proverbial moth drawn to the candle flame, the fruit fly Drosophila also stereotypically approaches light sources. This positive phototaxis is the archetypal example of hard-wired input-output behaviors.

The Compartmentalized Bacteria of the Planctomycetes-Verrucomicrobia-Chlamydiae Superphylum Have Membrane Coat-Like Proteins

Feb 8

The development of the endomembrane system was a major step in eukaryotic evolution. Membrane coats, which exhibit a unique arrangement of β-propeller and α-helical repeat domains, play key roles in shaping eukaryotic membranes. Such proteins are likely to have been present in...

Coherence Potentials: Loss-Less, All-or-None Network Events in the Cortex

Feb 8

Transient associations among neurons are thought to underlie memory and behavior. However, little is known about how such associations occur or how they can be identified. Here we recorded ongoing local field potential (LFP) activity at multiple sites within the cortex of awake...

Experimental Evolution of a Plant Pathogen into a Legume Symbiont

Feb 8

Rhizobia are phylogenetically disparate α- and β-proteobacteria that have achieved the environmentally essential function of fixing atmospheric nitrogen in symbiosis with legumes. Ample evidence indicates that horizontal transfer of symbiotic plasmids/islands has played a...

A Predominantly Neolithic Origin for European Paternal Lineages

Feb 8

The relative contributions to modern European populations of Paleolithic hunter-gatherers and Neolithic farmers from the Near East have been intensely debated. Haplogroup R1b1b2 (R-M269) is the commonest European Y-chromosomal lineage, increasing in frequency from east to west,...

Prokariotic Cell Collection in Denmark

Nov 6 2009

I would like to know about a prokariotic cell collection in Denmark. Is there a cell bank in this country? I need a Lactobacillus strain for a fermentation assay and this information about the bank is very helpful for me.

Request for Entries

Oct 16 2009

Ask the Experts is your chance to get the answers to questions on applications, materials, methods, processes, and technologies. Email you question to bst_web@advantagemedia.com, and the editors of Bioscience Technology will find an appropriate expert to answer it. Watch this space in the future to see the questions your colleagues are posting.

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Video:

Neuroscience Diseases of The Brain and How The Mind Emerges

Neuroscience Diseases of The Brain and How The Mind Emerges

Nov 8 2009

Dennis Choi, director of Emory Universitys Neuroscience Center, is renowned for his groundbreaking research on brain and spinal cord injury.

Podcasts:

Allen Institute for Brain Research

Allen Institute for Brain Research

Oct 14 2009

Discussed in this interview are both the mouse brain project and the human cortex project with an emphasis on the importance of these projects to neuroscience research.

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