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WHO warns against blood test kits for tuberculosis

According to a World Health Organization (WHO) warning Sunday, the widely used blood tests to detect tuberculosis (TB) are “dangerous” to patients because they are unreliable and can produce incorrect results. The WHO announced that it will issue an unprecedented recommendation against using such tests for the infectious lung disease that affects some 14 million people worldwide. As much as a third of the world's population is thought to harbor the bacteria that cause TB.

21 Jul 2011

Promising compounds for new anti-obesity drugs

Though it generally is known that obesity dramatically increases the risk for type 2 diabetes, the biological mechanisms for that connection still are unclear.

21 Jul 2011

Scientists define structure of astrovirus that causes juvenile diarrhea

Rice University scientists have defined the structure -- down to the atomic level -- of a virus that causes juvenile diarrhea. The research may help direct efforts to develop medications that block the virus before it becomes infectious.

19 Jul 2011

Light-switching complex could help detect signs of Alzheimer's disease

A breakthrough in sensing at Rice University could make finding signs of Alzheimer's disease nearly as simple as switching on a light.

14 Jul 2011

New method to study neuronal activity in the deepest layers of the cortex

Visual and tactile objects in our surroundings are translated into a perception by complex interactions of neurons in the cortex. The principles underlying spatial and temporal organization of neuronal activity during decision-making and object perception are not all understood yet.

13 Jul 2011

New insights into how cancer cells can maintain resistance to chemotherapy

Researchers from the Royal College of Surgeons in Ireland (RCSI) have conducted a study which reveals new insights into how cancer cells can maintain a resistance to chemotherapy resulting in cancer relapse.

12 Jul 2011

New proteomics-based approach to analyze bone quality

A new technique developed at Rensselaer Polytechnic Institute allows researchers to collect large amounts of biochemical information from nanoscale bone samples.

23 Jun 2011

Research provides new insights into how cilia are assembled on the cell surface

Body cells detect signals that control their behavior through tiny hairs on the cell surface called cilia. Serious diseases and disorders can result when these cilia do not work properly.

9 Jun 2011

Novel FRET biosensor allows measurement of intraorganellar glutathione potentials in living cells

In work published in the June 2011 issue of Experimental Biology and Medicine, Kolossov, Spring and their co-investigators - a multidisciplinary team within the Institute for Genomic Biology at the University of Illinois - have transferred the concept of redox-sensitive Green Fluorescent Proteins (GFPs) to a quantitative F-rster resonance energy transfer (FRET) imaging platform.

8 Jun 2011

Linkam tensile stage chosen to control stress in growth of human collagen by the University of Liverpool

Manufacturers temperature controlled microscopy, Linkam Scientific Instruments, have been chosen by the Physics Department of the University of Liverpool to study the effects of controlling stresses applied during the growth of collagen secreted from human fibroblast cells. The research goal of Senior Research Assistant, Dr Caroline Smith, and her colleagues at the University of Liverpool is to advance the treatment of tendon injuries by developing a method of growing oriented human collagen.

From Linkam Scientific Instruments 7 Jun 2011

Waters introduces SYNAPT G2-S at 59th ASMS Conference on Mass Spectrometry

Waters Corporation today introduced the SYNAPT® G2-S High Definition Mass Spectrometer, representing a significant step forward in performance for High Definition Mass Spectrometry. The SYNAPT G2-S incorporates both high-sensitivity Waters StepWave™ ion transfer optics and Triwave® ion mobility technologies along with a suite of new informatics tools to take qualitative and quantitative high resolution performance to a new level.

6 Jun 2011

Super microscopes help scientists identify exact molecular 'switch' that spurs T-cells into action

Using the only microscope of its kind in Australia, medical scientists have been able for the first time to see the inner workings of T-cells, the front-line troops that alert our immune system to go on the defensive against germs and other invaders in our bloodstream.

6 Jun 2011

Scientists use super microscope to pinpoint body’s immunity ‘switch’

5 Jun 2011

Dendritic cells secrete signal molecule that contributes to pathogenesis of atherosclerosis

Atherosclerosis is the most common cause of cardiovascular disease, and results from chronic inflammation of arterial vessel walls. An international collaboration led by Professor Christian Weber of Ludwig-Maximilians-Universität (LMU) in Munich and Privatdozentin Alma Zernecke of Würzburg University now shows that dendritic cells stimulate this process by derailing a mechanism that normally acts as a brake on immune reactions.

4 Jun 2011

MreB protein molecules assemble into larger units in bacterial cell wall

Almost all bacteria owe their structure to an outer cell wall that interacts closely with the supporting MreB protein inside the cell. As scientists at the Max Planck Institute for Biochemistry and at the French INRA now show, MreB molecules assemble into larger units, but not - as previously believed - into continuous helical structures.

4 Jun 2011

Simple eye scan can detect early signs of diabetes-related nerve damage

Could a simple eye scan detect early signs of diabetes-related nerve damage? Recent research toward developing such a test is the topic of a special article in Optometry and Vision Science, official journal of the American Academy of Optometry.

2 Jun 2011

Scientists invent Monolayer Stress Microscopy to measure physical forces during collective cellular migration

The physical forces that guide how cells migrate-how they manage to get from place to place in a coordinated fashion inside the living body- are poorly understood. Scientists at the Harvard School of Public Health and the Institute for Bioengineering of Catalonia have, for the first time, devised a way to measure these forces during collective cellular migration.

23 May 2011

DFG to fund 60 million euros for 18 new Research Training Groups

With the aim of further strengthening early-career research in Germany, the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) is to establish 18 new Research Training Groups.

21 May 2011

Berkeley Lab scientists reveal how protein-making machine bends without breaking

It sounds like hype from a late-night infomercial: It can twist and bend without breaking! And wait, there's more: It could someday help you fend off disease!

20 May 2011

Super-resolution microscopy technique reveals how and why cell's defenses fail against plague

Researchers at Sandia National Laboratories have developed a super-resolution microscopy technique that is answering long-held questions about exactly how and why a cell's defenses fail against some invaders, such as plague, while successfully fending off others like E.coli.

17 May 2011