Articles tagged with Cytochemistry
Researchers at Washington University in St. Louis discover 'condenzymes,' inherent catalytic activities of biomolecular condensates, which contribute to biochemical functions in cells. The study shows that condensates can catalyze reactions such as esterolysis and hydrolysis, challenging the idea that they are merely bystanders in cells.
Researchers at the University of Groningen discovered that protein clustering in cells leads to reduced movement and improved efficiency in amino acid production. This finding has practical implications for designing efficient cell factories and increasing substance production inside cells.
Researchers at UC Santa Barbara propose a cyst-targeted therapy using monoclonal antibodies to interrupt the runaway growth of fluid-filled sacs in polycystic kidney disease. The treatment, targeting a driver of cyst progression, shows promise in slowing or reversing the disease with minimal side effects.
Researchers show low-molecular-weight kraft lignin restores insulin sensitivity and slashes blood glucose levels in diabetic rats. The fractionation process is simple, scalable, and cost-effective, positioning lignin as a renewable and non-toxic active ingredient for functional foods or therapies.
Regular aerobic exercise has been shown to significantly reduce disease markers associated with Alzheimer's, protecting healthy brain cells and restoring balance in the aging brain. The study highlights the potential for aerobic exercise to serve as a cornerstone in preventive strategies for Alzheimer's.
The UTEP research team found that nanoplastics and PFAS can alter proteins in human breast milk, infant formulas, and affect oxygen storage. This could lead to developmental defects, compromised immunity, and reduced mineral absorption.
Researchers developed a novel material that self-assembles into micelle structures targeting cancer cell lysosomes, specifically interacting with Cathepsin B. This leads to dysfunctional lysosomes and apoptotic death of cancer cells. The technology promises a new approach to combat drug resistance in cancer treatment.
A new study published in eLife reveals the folding speed limit of helical membrane proteins using a robust single-molecule tweezer method. The findings provide unprecedented insights into structural states, kinetics, and energy barrier properties, offering valuable guidance for advancing pharmaceutical research and design.
The research team will analyze the remaining two enzymes necessary for riboflavin production and build a 'riboflavinator' in a test tube. This understanding could lead to improved methods for treating diseases and improving public health.
Scientists have developed a machine learning algorithm that can accurately predict the lifetimes of different battery chemistries using as little as a single cycle of experimental data. The technique could reduce costs and accelerate the development of new battery materials, enabling researchers to quickly evaluate and test multiple ma...
Researchers at Goethe University and the Max Planck Institute of Biophysics have gained new insights into how mitochondrial complex I facilitates proton transfer through water molecules. The study's high-resolution structure data enabled computer simulations that shed light on the protein's dynamics during its catalytic cycle.
A team of researchers has developed biocompatible protocells that can generate nitric oxide gas, leading to blood vessel expansion. The synthetic cells are coated in red blood cell fragments and contain an enzyme that produces hydrogen peroxide, which is then converted into nitric oxide.
The Politecnico di Milano team successfully synthesized a molecular crystal with a Borromean topology, demonstrating the mechanism of formation and opening new perspectives for complex chemical systems. The findings have potential applications in diamond synthesis, hydrogen storage, ultra-light composites, and drug development.
Researchers created artificial cells that can communicate with natural cells, potentially treating illnesses by delivering specific therapeutic molecules. The AI-powered cells detect changes in their environment and release protein signals to influence other cells.
New research shows that particle transport in crowded cells can be faster than in non-crowded environments, especially when moving from densely crowded areas to less crowded ones. The study used microfluidics and tracer colloids to investigate the effects of non-uniformly distributed crowding molecules on particle movement.
Two UT Austin engineers, Hal Alper and Alex Huang, have been selected as fellows in the prestigious National Academy of Inventors. Their research has led to significant innovations in biochemical engineering and power semiconductor device technology, resulting in seven U.S.-issued patents and technologies licensed to several companies.
Researchers develop chemically programmed synthetic cells that can communicate and interact with each other in a highly coordinated way, forming self-supporting artificial tissue spheroids. The artificial tissues undergo sustained beat-like oscillations in size, allowing for modulated amplitude of beating and control of chemical signals.
Researchers identify glyceraldehyde 3-phosphate dehydrogenase (GAPDH) as the protein responsible for delivering heme, a toxic yet essential molecule, to target proteins in cells. This discovery provides insights into how heme is transported and could contribute to understanding diseases such as anemias and asthma.
Researchers found that Skn-1a is a key regulator for generating Trpm5-expressing chemosensory cells in various parts of the body, including respiratory system and digestive tract. This discovery provides new insights into the role of these sensory cells in protecting against bacteria and potentially harmful substances.
Researchers at Scripps Research Institute identify diamidophosphate (DAP) as a potential 'missing link' in chemistry that led to the emergence of life. DAP can phosphorylate key ingredients in early life forms, leading to the formation of primitive cells and potentially kick-starting life on Earth.
A Dutch scientist has designed a nanomotor that can deliver and release drugs for cells, triggered by glutathione, a chemical signal inside cells. The nanomotor uses hydrogen peroxide to propel itself across the cellular membrane and releases its cargo upon encountering higher concentrations of glutathione.
Researchers developed microbes to aid methane recovery, while also improving chemistry students' test scores through personalized feedback. Urban streams were found to exhibit unique nutrient patterns driven by wastewater treatment plants.
Chem, Cell Press' new physical sciences journal, aims to move the field forward through original research articles, reviews, and front matter. Key findings include transporters with high selectivity for chloride over other ions, stable phosphorous carbene analogs, and strategies for producing chemicals from renewable sources.
Researchers at Aarhus University have developed an RNA aptamer that prevents misfolding of a specific serpin mutant without inhibiting its anti-proteolytic function. This breakthrough has implications for diseases caused by serpinopathies, such as liver cirrhosis and lung emphysema.
Researchers reconstructed ancient bacterial enzymes and found that they were sophisticated and functional, contrary to the widely-held theory. This discovery suggests that biological evolution progressed rapidly in its early stages, with enzymes becoming fully developed within a 500-million-year period.
Researchers have made significant progress in developing fluorescent chemical probes that can target specific cancer cells, allowing for more accurate tumor removal. These probes have the potential to improve patient outcomes and reduce the need for repeat surgeries.
Researchers developed HyPer-Tau, a sensor that attaches to microtubule structures to track hydrogen peroxide levels inside cells. This allows for precise sub-cellular information and understanding of oxidation-reduction reactions.
Researchers discover molecule found in tree leaves speeds up energy metabolism in female mice, but not in males. The findings suggest a promising strategy for combating obesity and highlight the need to study both sexes while developing drugs.
A new drug candidate called DBIBB increases the survival of mice suffering from radiation syndrome, even when treatment was delayed by three days. The compound protects against DNA damage and enhances the survival of various types of cells, showing promise for treating acute radiation syndrome.
Researchers at the University of East Anglia have found that cells in plants, yeast, and animals continue to perform reactions thought to be responsible for life's origin four billion years ago. These reactions involve iron, sulfur, and electro-chemistry, essential for functions like respiration and photosynthesis.
Scientists at DESY's PETRA III research light source used nanodiffraction to study living cancer cells, showing clear differences in their internal structures compared to chemically fixed cells. The technique enabled the investigation of living cells in their natural environment using hard X-rays.
A recent study has identified a previously unknown cell type in the urethra of mice, which expresses cholinergic receptors and may serve as sentinels to detect hazardous substances. This finding could provide insight into cellular interaction and defensive measures against pathogens, potentially preventing urinary tract infections.
Researchers have discovered a new and improved version of an enzyme that can detoxify deadly nerve agents, such as sarin. The PON1 variant shows 40-3,400-fold higher efficiency in metabolizing the three most toxic G-type nerve agents.
Researchers at Iowa State University have developed a technology that can produce ethylene glycol and propylene glycol from biomass, two high-value chemicals with various industrial applications. The process uses supercritical fluids and does not require expensive reagents or harsh compounds, making it a more sustainable option.
Mobile cells may be more sensitive to chemical signals than thought, following trails with improved accuracy. Researchers found lower-than-expected noise levels in these cells, enabling them to detect and respond to chemical cues more effectively.
The Journal of Histochemistry & Cytochemistry will be published by SAGE beginning with volume 59 in 2011. The journal focuses on significant advances in visual techniques providing biochemical and molecular information about cells, tissues, and organs.
Scientists have created synthetic microtissues that can perform functions like secreting hormones and responding to stimuli, surpassing individual cell capabilities. The technique uses DNA hybridization as a programmable glue to link cells together in 3D arrangements.
The Dakota model will enable managers and engineers to predict Li-ion battery behavior, optimize designs, and assess mission requirements. The model will also facilitate the development of new cell technologies and power subsystems.
Scientists from three universities will establish a new center to develop state-of-the-art chemical libraries, increasing the efficiency of compound synthesis. The center aims to identify new compounds for future drug development and basic biomedical research.
Researchers discovered a solitary chemosensory cell plays a crucial role in transmitting irritating chemical odors to the trigeminal nerve. This finding expands our understanding of olfaction and may lead to a better understanding of why some people are exceptionally sensitive to irritating odors.
Researchers at Vanderbilt University and Pria Diagnostics LLC collaborate to develop a portable device that can quickly detect infectious diseases and biological agents. The device, which aims to produce its first portable HIV monitor within two years, utilizes microfluidic devices and micro-optical fluorescence spectroscopy.
NYU chemist Robert Shapiro challenges existing assumptions about life's universality with a new theory that simple cellular life may arise from organic chemistry and self-organizing systems. He also advocates for continued search for extraterrestrial life in nearby worlds like Mars, Europa, and Titan.
The University of Pittsburgh has been chosen as one of three pioneer sites for biocombinatorial chemistry research, a revolutionary approach to speed up drug discovery. Researchers will create novel chemical compounds and test them in specific assays to learn whether they can interrupt cellular activities that lead to cancer.
Dr. Paul D. Boyer, a long-time NIH grantee, has won the Nobel Prize in Chemistry for his groundbreaking work on ATP synthesis. His research has provided a deep understanding of the molecular mechanism by which ATP is formed, shedding light on fundamental processes in biology.