Articles tagged with Mass Spectrometry
Researchers review current treatment updates for systemic light chain (AL) amyloidosis, highlighting the need for early diagnosis and effective maintenance therapy. The article discusses the relationship between AL amyloidosis and monoclonal gammopathy of undetermined significance (MGUS), emphasizing the importance of regular monitoring.
Researchers develop a technique to visualize carnitine distribution in muscle fiber cells, finding higher concentrations in slow-type fibers. The study reveals rapid transport of carnitine into muscle cells during contraction, shedding light on metabolic processes and potential therapeutic applications.
A new method has been developed to detect hydrogen cyanide (HCN) in exhaled breath, which is associated with Pseudomonas aeruginosa infection in cystic fibrosis patients. The flow-assisted photoionization mass spectrometry method enables real-time tracking of HCN concentrations, allowing for early screening and diagnosis.
A team of researchers conducted the largest proteomic study on yeast cells to gain a detailed picture of previously unknown gene functions. The study revealed general principles governing protein expression and identified thousands of proteins with their biophysical properties.
MIT researchers developed a miniature vacuum pump for portable mass spectrometers, overcoming design limitations of traditional pumps. The 3D-printed pump can create and maintain lower pressure vacuums, increasing the device's lifetime and enabling its use in remote locations and space exploration.
Conclusive evidence of chicken breeding in the Yayoi period of Japan has been discovered at the Karako-Kagi site. The study found that chickens were bred in the area during the middle Yayoi period, around 381-204 BCE, providing clear evidence that breeding occurred on the Japanese archipelago.
Researchers at Stanford University have developed a new tool to estimate long-term coastal cliff loss, finding that rates are similar to those over the past 2,000 years. The study's approach provides a relative assessment of driving factors behind cliff retreat over longer periods, with implications for managing coastal erosion.
Acylceramides and protein-bound ceramides play a vital role in forming the oral barrier, similar to their function in the skin. Researchers found that these molecules protect against pathogens, chemicals, and allergens in mice.
Researchers from PSI deciphered the structure of an ion channel found in the eye while interacting with calmodulin, a protein that enables cell response to calcium fluctuations. This interaction is believed to be responsible for achieving remarkable sensitivity to dim light.
Researchers at Zurich University of Applied Sciences identified six compounds contributing to fermented coffee's unique flavor, including 2-methylpropanal, 3-methylbutanal, and ethyl 3-methylbutanoate. The study aims to standardize production methods and increase availability of this distinctive beverage.
Researchers have identified tens of thousands of molecular 'puzzle pieces' in two meteorites, including a larger amount of oxygen atoms than expected. This analysis provides a unique window into the origin of life itself and sheds light on the formation of the universe.
Researchers at Max Planck Institute developed an ammonia-based direct reduction process to produce sustainable iron and steel, overcoming logistics and energetic disadvantages of hydrogen. The process yields the same metallization degree as hydrogen-based reduction while forming nitrides that protect the sponge iron from corrosion.
A new study has created a comprehensive map of the human proteome, identifying over 1 million peptides from 17,717 different protein groups. The researchers also found that most alternative splicing detected at the RNA stage is also present in the proteins, validating long-held ideas about this process.
Researchers analysed wastewater from 10 cities to detect chemical and biological markers of health, including pesticides, pharmaceuticals and disease-causing viruses. The study found that analysing wastewater on a large scale could spot new outbreaks of diseases in communities early on.
Scientists have detected uracil and nicotinic acid in asteroid Ryugu samples collected by the Hayabusa2 spacecraft. The discovery suggests that important building blocks for life were created in space and delivered to Earth via meteorites, supporting current theories on the source of nucleobases.
Researchers have pushed single-atom vibrational spectroscopy to the level of chemical bonds, enabling precise measurements of point defects in graphene. The study found unique vibrational modes for two types of silicon point defects, with stronger signals for one defect configuration.
Researchers at the University of California - Riverside have discovered a way to deactivate mosquito sperm, preventing them from swimming to or fertilizing eggs. This breakthrough could help control populations of Culex mosquitoes that transmit infectious diseases like encephalitis and West Nile Virus.
A new study led by University of Maryland researchers found that melted meteorites have extremely low water content, ruling them out as the primary source of Earth's water. The team suggests that unmelted, or chondritic, meteorites may be responsible for delivering water to our planet.
A new generation of software, MZmine 3, enables scientists to analyze large volumes of data from mass spectrometry, tracing hundreds of thousands of chemical compounds. This breakthrough accelerates data processing and opens up opportunities for researchers to investigate disease causes and mechanisms.
Studies elucidate key aspects of traditional Chinese compounds and modern cancer therapeutics, highlighting the efficacy of R. serra in treating colitis and identifying active components of Gan Cao in treating pneumonia. A new radiolabeled antibody-based probe for detecting PD-L1 expression in cancers also provides a novel approach to ...
A University of Massachusetts Amherst epidemiologist is leading a team to better understand the effects of chronic stress on future health risks. They will examine metabolites in blood samples from a large, racially diverse population to identify potential biomarkers for heart disease, diabetes and cognitive decline.
Researchers at Osaka University found that male patients with COVID-19 have a faster loss of circulating Treg cells, leading to dysregulated antibody responses. Females, on the other hand, have higher levels of these cells, which may help protect them from infection.
Researchers developed a new method to quantify the structure and quality of messenger RNA (mRNA) medicines using liquid chromatography, mass spectrometry, and software analysis. The platform can analyze all three key components of mRNA medicines simultaneously, providing unparalleled efficiency in checking for quality.
A team of Brown researchers has developed a new, highly accurate method for detecting antidepressants in patients using liquid chromatography tandem mass spectrometry. The technique requires minimal biological samples and can be fully automated using liquid-handling robots.
Researchers have identified a blood protein snapshot that documents changes in patients with severe liver disease caused by heavy drinking, potentially leading to a simple blood test for diagnosis and treatment monitoring.
Researchers detected high levels of hydrogen peroxide in pancreatic cancer cells, which makes it a critical target for cancer treatment and research. The study also showed that cancer-promoting mutations lead to suppressed genetic expression of enzymes breaking down hydrogen peroxide.
A team of scientists from Tokyo Institute of Technology developed PETEOS to capture 'snapshots' of translation in the cell. The non-labeling methodology enriches and rapidly captures pep-tRNAs, enabling analyses that current methods cannot, with potential applications to any organism.
Researchers at Tokyo University of Agriculture and Technology discovered a novel amyloid protein, α-S1 casein, which can cause disease in humans. The study found that overexpression and N-terminal truncation of α-S1-casein led to its formation as an amyloid protein.
Researchers at Beckman Institute for Advanced Science and Technology will use a unique combination of MRI and mass spectrometry imaging techniques to study Alzheimer's disease on an unprecedented scale. By capturing detailed chemical information, they aim to understand the molecular-level changes that occur in aging brains and develop ...
A team of researchers from Chung-Ang University evaluated three different MALDI-TOF MS approaches used in domestic clinical settings for the identification of molds. They compared the performance and diagnostic accuracy of the Bruker Biotyper, ASTA MicroIDSys, and Vitek MS instruments.
Researchers analyzed ancient teeth from Homo erectus and great apes to reveal annual cycles in tooth enamel, providing insights into their diets and seasonal food supplies. The study shows that humans and great apes had distinct dietary patterns, with humans exhibiting less pronounced peaks and lower Sr/Ca values.
A University of Maryland-led team developed a miniaturized analyzer to detect signs of life on other planets. The instrument combines a pulsed ultraviolet laser with Orbitrap analysis to identify chemical structures in planetary samples.
Researchers found that cells exchanging amino acids and glycerol with each other lived up to 25% longer. The study suggests this collaborative exchange extends the lifespan of cells within a community as a whole.
A new machine learning model developed by Aalto University researchers can identify small molecules with unprecedented accuracy, distinguishing between mirror image molecules. This breakthrough has significant implications for understanding metabolic disorders, such as diabetes, and identifying micropollutants in the environment.
Researchers used mass spectrometry to analyze complex biological samples, including Salvia miltiorrhiza Bge and Astragali Radix. The studies identified metabolites and compounds with immunoregulatory effects, highlighting the potential for new drugs and improving plant quality.
A new law restricts 1,4-dioxane levels in household cleaners and cosmetics, a potential human carcinogen common in everyday products. Experts recommend robust analytical methods for detection and quantification to meet regulatory requirements.
Researchers used native top-down mass spectroscopy to study the interplay between glycans and oligomerization in various therapeutic hormones and cytokines. They found that glycans significantly stabilize some proteins, such as tumor necrosis factor-α, while others, like interferon-β, are independent of glycosylation status.
MU researchers, including Jay J. Thelen and Dong Xu, are exploring genetic modification to increase seed oil production in camelina and pennycress for biofuel use in the aviation industry. The team aims to create a sustainable 'green energy' source as an alternative to petroleum-based fossil fuels.
Scientists from the University of Johannesburg identified ten times more volatile signal compounds from the bacteria, boosting plant growth and protection. Rhizobacteria can protect crops from abiotic and biotic stresses by producing valuable VOCs that trigger Induced Systemic Resistance (ISR) in plants.
A blood test taken at the time of Covid-19 infection could predict who is most likely to develop long Covid. Researchers identified a 'signature' in protein levels that predicted persistent symptoms after one year.
Researchers at the University of Birmingham developed a new technique using mass spectrometry to analyze drug-protein interactions in real tissue samples. This allows scientists to predict the therapeutic effect of drugs earlier, enabling more effective treatment options.
A new study identifies pox virus proteins that directly interfere with the body's innate immune system, allowing it to evade the host's defense mechanisms. The research team has discovered five 'redox' proteins that interact with Reactive Oxygen Species, which play a key role in destroying pathogens identified by the immune system.
A new approach in metabolomics reveals how much of our body chemistry is traceable to what we consume. By matching molecular signatures with reference databases, scientists can create a diet profile of individuals and understand relationships between diet and health outcomes.
Researchers have developed a new mass spectrometry-based method to study the functionality of microbiota, enabling a broader understanding of gut microbiota dynamics. The new method produces reliable results without fluctuation and is freely accessible for the research community.
Researchers have identified a series of complex organic molecules at comet Chury, including fragrant molecules like naphthalene and benzoic acid. The findings suggest that comets may have played a role in the emergence of carbon-based life on Earth.
Researchers at Hokkaido University identified over 1,300 types of ceramides in the top layer of human skin, including their chain lengths and fatty acid compositions. The discovery could improve understanding of skin barrier function and disease pathology.
A new study applies 'Deep Visual Proteomics' to cancer cells, revealing mechanisms driving tumor development and exposing therapeutic targets. The method integrates advances from four technologies to analyze protein landscapes, providing insights into cancer vulnerabilities.
Researchers found that Indo-Pacific bottlenose dolphins rub against corals to agitate tiny polyps, releasing mucus with antibacterial and antioxidative properties. This discovery suggests the mucus regulates the dolphin's skin microbiome and treats infections.
Research team from Goethe University reproduces Asian monsoon conditions in experimental chamber, identifying increased aerosol particle formation. The study found that ice clouds can form under lower water vapour supersaturation than anticipated, affecting climate models' accuracy.
Researchers at the University of Cologne investigated UPF3A and UPF3B proteins involved in nonsense-mediated mRNA decay (NMD), a quality control mechanism preventing defective mRNA from being processed into harmful proteins. The study shows that both proteins have partially overlapping functions, enabling fault-tolerant activation of NMD.
Scientists at Scripps Research developed Pytheas, an open-source app that automates the analysis of modified RNA molecules using mass spectrometry. The tool speeds up the process of characterizing and quantifying RNAs in basic research and drug-development settings.
Researchers at Chinese Academy of Sciences use rare-RI ring to measure palladium-123 mass, providing reliable data for calculations. The new results improve understanding of fine structure of element abundance patterns created in the r-process, consistent with observed solar r-process abundance.
Researchers used terahertz time-domain spectroscopy to compare fossil and synthetic ambers. The technique detected differences in the materials' compositions, indicating potential detection methods for synthetic forgeries.
Researchers at Massachusetts General Hospital discovered that non-dividing colon cancer cells employ Warburg glycolysis to reduce toxic reactive oxygen species accumulation. This adaptation challenges the long-held dogma of the Warburg effect, highlighting the need for single-cell level analysis tools.
Researchers at Karolinska Institutet have found a way to stabilize the cancer-suppressing protein p53 by adding a spider silk protein, creating a more potent variant. This discovery has potential as an approach for cancer therapy.
A new system called PRMC-MS enables the comprehensive analysis of phosphoinositide acyl variants in various types of biological samples. This method allows for the simultaneous measurement of all eight classes of phosphoinositides and detection of tiny changes in intracellular levels.
Researchers have discovered a new mechanism that causes relapse in multiple myeloma by upregulating the protein CDK6, which controls cell division. Using proteomics and mass spectrometry technology, they found that adding a CDK6 inhibitor to treatment can reverse drug resistance and improve survival odds.
A recent study found that nutrient levels in broccoli and kale microgreens differ significantly depending on the growing environment. Researchers measured polyphenols and glucosinolates in microgreens grown under different conditions, revealing varying levels of antioxidant- and anticancer-related compounds.
A team of researchers has developed a new approach to discover the thousands of human-made 'forever' chemicals, PFAS, using advanced mass spectrometry. The technique enables them to characterize and catalog the chemical compounds in the PFAS family.
A recent review highlights the potential of structural proteomics in understanding pathological processes and predicting drug candidates for neurodegenerative diseases. The field combines protein chemistry and mass spectrometry to determine protein structure and interactions, which can lead to breakthroughs in treating serious health c...