Histology & Microscopy

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Research sheds light on how membrane proteins could be influenced by lipid environments

The cell membrane, the wall-like boundary between the cell interior and its outside environment, is primarily made up of two kinds of biomolecules: lipids and proteins. Different

24 Sep 2020

Tobacco dependence treatment is critical to excellence in health care delivery

A UCLA-led report published today in the Journal of the American Medical Association Internal Medicine exposes what the authors call a weakness in the high-profile "Best Hospitals Honor Roll" published annually by U.S. News and World Report.

22 Sep 2020

New national research and training hub at UW-Madison could transform medicine

A national research initiative announced today will place the University of Wisconsin-Madison at the forefront of a revolution in imaging fostered by cryo-electron microscopy and cryo-electron tomography - technologies that can illuminate life at the atomic scale.

22 Sep 2020

PARP enzymes can bring two broken DNA ends together, shows study

Scientists at St. Jude Children's Research Hospital have identified the structure of double-strand DNA break repair by PARP enzymes. The findings show that PARP2 can bridge the gap, bringing two broken DNA ends together.

16 Sep 2020

Bacterial movement is powered by tiny protein motor

The ability to move is key for bacteria like some strains of salmonella and E. coli to efficiently spread infections. They can propel themselves forward using threads, known as flagella, powered by the flagellar rotary motor.

15 Sep 2020

3D cluster of cells could enhance myocardial repair

Cell therapy for cardiac regeneration, while promising, has been hampered by issues with long-term survival of the transplanted cells.

15 Sep 2020

New x-ray microscopy technique could help accelerate efforts to map neural circuits

One of the grand quests in neuroscience is to build a precise map of the brain, charting all its neurons and the connections between them. Such a wiring diagram, called a connectome, promises to help shed light on how a collection of cells can together give rise to thoughts, memories, behaviors and myriad other functions.

14 Sep 2020

Exploring the structure and dynamics of biological nanomachine

A small but important step towards a successful immune reaction is performed by an impressive nanomachine. Researchers use simulations to understand how it works.

28 Aug 2020

Researchers develop 3D imaging technique to visualize damaged lung tissue after severe COVID-19

Physicists at the University of Göttingen, together with pathologists and lung specialists at the Medical University of Hannover, have developed a three-dimensional imaging technique that enables high resolution and three-dimensional representation of damaged lung tissue following severe Covid-19.

21 Aug 2020

Using engineered off-the-shelf therapeutic T cells to fight cancer

Personalized cancer treatments are no longer just options of the future. In the past few years, researchers have made significant progress in 'teaching' the body's immune T cells to recognize and kill specific cancer cells, and human clinical trials have shown that this approach can successfully eliminate tumors.

20 Aug 2020

Cryo-EM experiments offer important clues to chicken pox infection

Despite decades of study, exactly how herpesviruses invade our cells remains something of a mystery. Now researchers studying one herpesvirus, the varicella zoster virus (VZV) that causes chicken pox, may have found an important clue: A key protein the virus uses to initiate infection does not operate as previously thought, researchers at Stanford University and the Department of Energy's SLAC National Accelerator Laboratory report August 18 in Nature Communications.

18 Aug 2020

New technique enables real-time observation of influenza A hemagglutinin during viral entry

Unlike living organisms, to avoid extinction, viruses need to hijack living host machineries to generate new viruses.

17 Aug 2020

Researchers reveal molecular workings of a key system in learning and memory formation

One of the new realities in biomedical research is that it's increasingly difficult to use a general approach to score advances. Now, investigations into disease mechanisms, for example, are often conducted at the molecular level by specialists who dedicate years to interrogating a single protein or signaling pathway.

10 Aug 2020

Finned nanoporous catalyst facilitates molecular transport

Thousands of chemical processes used by the energy industry and for other applications rely on the high speed of catalytic reactions, but molecules frequently are hindered by molecular traffic jams that slow them down.

10 Aug 2020

Researchers to develop oil-based system to clean commercial nut paste facilities

From home bakers to commercial food producers, everyone knows that cleaning peanut butter off utensils and out of bowls is a tricky, sticky proposition.

5 Aug 2020

High-speed atomic force microscopy reveals diverse amyloid structures and dynamics

In the human body, proteins sometimes occur in fibrillar aggregates called amyloids. Although certain amyloids are known to have a biological function, amyloid formation is often associated with pathologies, including Alzheimer's and Parkinson's diseases.

3 Aug 2020

New method to detect rare circulating tumor cells in blood samples

Metastasis - the development of tumor growth at a secondary site - is responsible for the majority of cancer-related deaths. It occurs when the primary tumor site sheds cancerous cells which are then circulated through the body via blood vessels or lymph nodes.

3 Aug 2020

Deep learning algorithm can identify genetic alterations from routine histological images of tumors

Researchers at the University of Chicago Medicine Comprehensive Cancer Center, working with colleagues in Europe, created a deep learning algorithm that can infer molecular alterations directly from routine histology images across multiple common tumor types.

28 Jul 2020

Novel label-free imaging method can differentiate active T cells from those off duty

T cells are the immune soldiers at the frontlines of the battle with infiltrating pathogens that seek to cause disease. A new study published in Nature Biomedical Engineering describes a novel label-free imaging technique that can differentiate active T cells from those off duty.

27 Jul 2020

Study provides insight into evolution of amyloid-β oligomer with temporary salt crystals

Alzheimer's disease is the leading cause of dementia worldwide and a major cause of disability. Now, researchers at Osaka University and Hokkaido University have shown that repeated precipitation-dissolution events of salt crystals do occur even at low salt concentrations in nanoscales, and that it can accelerate the aggregation of the neurotoxic amyloid-β peptides implicated in its pathogenesis.