Articles tagged with Peptides
The discontinuation of GLP-1 RAs has significant clinical implications, including reduced glucose control and increased cardiovascular risk. Long-term adherence to these therapies is crucial for optimal patient outcomes.
Researchers developed a sustainable, high-performance material suitable for packaging and biomedical devices by exploiting the mechanical properties of cellulose nanofibres. Adding small peptides improves their mechanical performance and water-resistance.
Scientists have developed a polymer-based therapeutic for Huntington’s disease, which disrupts protein interactions to preserve cell health. The treatment successfully rescued neurons and reversed symptoms in mouse studies, showing promise as a potential delay or reduction of disease onset.
A team of researchers at the University of Toronto has developed a rapid screening system to identify compounds that can stop the growth of amyloid proteins. The study found 40 compounds that demonstrate the ability to inhibit amyloid formation, providing a promising lead for future disease treatments.
A cross-sectional study found a significant increase in GLP-1 receptor agonist (RA) use as anti-obesity medications from 2022 to 2023. Meanwhile, the rate of metabolic bariatric surgery decreased by 25.6% during the same period. These findings suggest a potential shift in treatment strategies for obesity management
Researchers at the Hebrew University of Jerusalem have developed a highly selective inhibitor for Matrix Metallopeptidase 7 (MMP7), an enzyme crucial for cancer spread and progression. The novel peptide D'20 demonstrates remarkable stability and selectivity, targeting MMP7 while leaving similar enzymes unaffected.
Researchers at Northwestern University developed soft, sustainable electroactive materials using peptides and a snippet of plastic. These materials can store energy or record digital information and have potential applications in low-power electronics, sensors, and medical implants.
A study from Goethe University Frankfurt reveals that venomous crustaceans, specifically remipede crabs in Mexican cenote caves, contain a variety of toxins with pharmacological potential. The xibalbines peptides effectively inhibit potassium channels and activate signaling pathways involved in pain sensitization.
A new study reveals thaumatin, a widely used natural sweetener, produces bitter peptides that stimulate acid secretion and influence inflammatory reactions in human stomach cells. The peptides also show anti-inflammatory effects by reducing pro-inflammatory interleukin 17A release via the TAS2R16 bitter taste receptor.
A new study sheds light on the chemistry surrounding peptide helices, which are crucial for protein structure and function. The research details how different amino acid sequences influence helical structures, offering potential for designing new molecules in medicine and biotechnology.
Researchers at NYU Abu Dhabi have developed nanoscale covalent organic frameworks (nCOFs) modified with peptides to treat triple-negative breast cancer. The COFs selectively release drug cargo within the acidic environment of tumors, improving treatment effectiveness and minimizing side effects.
Researchers developed an algorithm to analyze peptides in infected wounds, revealing unique biomarkers that enable earlier and more accurate diagnoses. This breakthrough method uses mass spectrometry and machine learning to diagnose infections in just a few minutes.
Researchers found an atomic-level interaction in collagen that defends it from water molecules, preventing hydrolysis and allowing it to survive for millions of years. This discovery provides evidence that the peptide bonds in collagen are resistant to breakage by water, contradicting previous expectations.
Researchers investigated peptide clumping behavior using molecular dynamics simulations and AI techniques. They discovered that aromatic amino acids enhance aggregation, while hydrophilic ones inhibit it, offering insights into peptide structure and function.
A cohort study found no association between GLP-1 receptor agonist use and increased risk of suicide death or related disorders in patients with type 2 diabetes. The study included mostly patients with type 2 diabetes.
Researchers have developed a novel, more selective inhibitor of the human immunoproteasome using a bacterially derived natural product. The new compound targets autoimmune diseases without disrupting other cellular mechanisms.
A study found that collagen tripeptide and elastin peptide supplements significantly improved skin hydration, elasticity, and collagen content in middle-aged women. The combination of these peptides demonstrated enhanced anti-aging effects compared to a placebo group.
Researchers at Heidelberg University have developed a process for producing biologically active peptide boronic acids, which could be used to induce an immune reaction against tumor cells. The new substances also show promise for targeted release of active compounds in the body.
Researchers developed a bioactive material that successfully regenerated high-quality cartilage in animal models, promoting enhanced repair and growth of new cartilage containing natural biopolymers. The material's effectiveness was tested in sheep with cartilage defects, showing promising results for potential use in humans.
A research group developed a long-acting artificial hepatocyte growth factor (HGF) mimetic molecule using cyclic peptides and protein engineering. The molecule improved liver fibrosis, lipid accumulation, and inflammation in a mouse model with non-alcoholic steatohepatitis (NASH), providing an option for NASH therapeutics.
Researchers found that folded peptides are more electrically conductive than their unfolded counterparts due to the formation of a specific secondary structure called the 3_10 helix. This discovery has implications for the design and development of molecular electronic devices.
Oligodendrocyte-derived amyloid beta produces toxic peptide that promotes neuronal dysfunction in Alzheimer's disease. Selective suppression of oligodendrocyte Aβ production rescues abnormal neuronal hyperactivity, suggesting targeting these cells as a promising therapeutic strategy for AD.
Researchers at the University of Birmingham identified specific groups of neurons in the female fly's brain responding to the sex-peptide, which influences post-mating behaviors. The study found that the peptide targets higher-order 'command neurons' essential for behavioral decision-making.
A study by Michigan State University reveals that certain proteins and peptides in the nasal and oral environments create lubricants for bacterial colonies to move towards vulnerable sites. The discovery provides new insights into how staphylococcus bacteria spread, shedding light on conditions that accelerate their movement.
Researchers found that subretinal adeno-associated virus 8 injections trigger proinflammatory T-cell responses, but co-injection of immunodominant peptides can modulate the immune system. This study suggests a new approach to AAV gene therapy for retinal diseases.
Researchers have developed a multi-component hydrogel scaffold to mimic the amyloid-beta containing microenvironment associated with AD. The study found elevated levels of neuroinflammation and apoptosis markers in healthy neuronal progenitor cells cultured within this environment.
Researchers found GLP-1 receptor agonists lower risks of certain obesity-associated cancers in patients with type 2 diabetes, suggesting potential benefits for cancer prevention in high-risk populations. The study provides preliminary evidence supporting further preclinical and clinical studies to prevent specific obesity-linked cancers.
A study published in JAMA Ophthalmology found an association between semaglutide and nonarteritic anterior ischemic optic neuropathy, a condition that can cause vision loss. The observational study suggests caution when prescribing semaglutide to patients at risk of this condition.
Researchers at Karolinska Institutet developed nanorobots that target and kill cancer cells using a 'kill switch' activated in low pH environments. The study achieved a 70% reduction in tumour growth in mice, paving the way for further investigation into its potential as a cancer treatment.
Researchers at U of T have developed a deep-learning model called PepFlow that can predict the full range of conformations for peptides, which are shorter than proteins but perform similar biological functions. The model combines machine learning and physics to capture precise and accurate conformations within minutes.
A novel peptide, KS-133, has been developed to target genetic mechanisms associated with schizophrenia. The nanoparticle-based drug delivery system, where KS-133 is encapsulated with a brain-targeting peptide, shows effective distribution in the brains of mice and improves cognitive functions in mice with induced schizophrenia.
Researchers have developed a route to modify peptides to target disease diagnostics and drug discovery, focusing on protein-protein interactions (PPIs). By modifying a small peptide sequence, the team showed it binds more quickly and strongly to specific PPI targets.
In individuals with a diabetes duration of 10 years or less, bariatric metabolic surgery was associated with greater weight loss and reduced mortality compared to first-generation GLP-1RAs. No differences were observed between treatment modalities in patients with longer diabetes duration.
Researchers at the University of British Columbia have developed oral insulin drops that can be easily absorbed by the body, potentially replacing insulin injections. The drops contain a unique cell-penetrating peptide that helps insulin navigate through cells and reach the bloodstream quickly.
The study explores the convergence of peptide self-assembly and 3D printing, enabling the creation of complex biological structures and organs. The technology has vast applications in regenerative medicine, personalized healthcare, and drug delivery.
Researchers at USask have discovered a new peptide that lowers lipid accumulation in human liver cells, offering new avenues for treating metabolic diseases. The finding is hopeful news as there's a lack of new therapies available for these diseases.
Researchers identify REF1 as a key local wound signal governing plant regenerative responses. Its application has improved transformation efficiency in crops like soybeans and wheat.
The study found a substantial increase in glucagon-like peptide-1 receptor agonist (GLP-1RA) dispensing among adolescents and young adults between 2020 and 2023. This trend is particularly notable for females, emphasizing the need for targeted education on sex-specific safety risks, such as concerns during pregnancy.
Researchers at Bielefeld University discovered that certain gluten-derived molecules, including the 33-mer deamidated gliadin peptide (DGP), form nanosized structures that accumulate in gut epithelial cells and lead to leaky gut syndrome. This triggers chronic inflammation and autoimmune responses in celiac disease patients.
A team of scientists at the University of Ottawa has developed a novel peptide-based hydrogel that can be used for on-the-spot repair to damaged organs and tissues. The material shows great potential for closing skin wounds, delivering therapeutics to damaged heart muscle, and reshaping and healing injured corneas.
A team of researchers from Osaka University used machine learning to identify a highly effective boron-based catalyst for chemical transformations of amino acids and peptides. The new catalyst generates only water as a coproduct and promotes high-yield reactions with minimal environmental impact. By leveraging computational methods, th...
A region in alpha-synuclein protein aggregates has been identified as a potential therapeutic target to prevent conversion into toxic amyloid fibrils, which accumulate in the brains of people suffering from Parkinson's disease. The discovery opens the door to developing new therapeutic strategies for inactivating these toxic forms.
Researchers at Rice University have developed a novel fabrication process to create aligned peptide nanofiber hydrogels, which can guide cell growth in a desired direction. The study revealed that cells need to be able to 'pull' on the peptide nanofibers to recognize alignment, and excessive rigidity can prevent this.
Researchers at NJIT are developing a hydrogel therapy that prevents viruses like SARS-CoV-2 from attaching to and entering cells. The peptides in the gel form a 'molecular mask' that muffles the virus's action, providing a potential first line of defense against biological threats.
A recent study found that preoperative GLP-1 receptor agonist use is not associated with an increased risk of postoperative respiratory complications. The results suggest liberalizing withholding guidelines for these medications may be beneficial.
Researchers at University of Texas M. D. Anderson Cancer Center have developed a new method for developing immunotherapy drugs using engineered peptides. The approach improved tumor control and prolonged survival in preclinical models of breast cancer.
Researchers have developed an AI pipeline to identify molecular interactions crucial for developing new treatments and understanding diseases. The AF-CBA Pipeline offers unparalleled accuracy and speed in pinpointing the strongest peptide binders to specific proteins.
Researchers developed a multifunctional drug delivery system that can carry both hydrophilic and hydrophobic compounds, overcoming previous limitations in conventional methods. The system utilizes switchable peptide-stabilized emulsions, allowing for precise release of drugs in tumor cells.
A second-generation melanoma vaccine has shown improved survival rates for male patients compared to female patients, particularly those who are younger and have earlier-stage cancer. The vaccine targets helper T cells to recognize melanoma proteins, leading to boosted patient survival and reduced cancer reoccurrences.
A team of scientists discovered new fusion sites in protein evolution that enable faster and more targeted drug development. By combining evolutionary processes with synthetic biology, they created customized biological drugs with improved therapeutic properties.
Researchers have developed a method to identify extremophiles using protein fragments, leading to the discovery of two new 'extremophile' microbes from high-altitude lakes in Chile. This breakthrough could potentially help scientists search for extraterrestrial life and explore Earth's biodiversity.
A new platform has been developed to identify and optimize peptides targeting the SARS-CoV-2 envelope protein, a potential drug target for treating COVID-19. The study uses synthetic peptides to inhibit the virus's entry into host cells.
Researchers at Leibniz-HKI deciphered the function of Candidalysin's unusual protein structure, which reduces pathogenicity and opens up new treatment options. Nanobodies neutralize the toxin, blocking its activity and inhibiting tissue damage.
Researchers from Tohoku University developed a unique chemical reaction to attach two distinct functional molecules to the N-terminus of peptides with a glycine amino acid, achieving site-selective modification and stable carbon-carbon bonds. The method shows potential for labeling diverse peptides and larger proteins for purification,...
Researchers from Nano Life Science Institute discovered how genetically designed peptides form single-molecule thick crystals on graphite surfaces. The behavior is directly related to their molecular architecture, with negatively charged and positively charged peptides forming unique oblique lattices.
Scientists successfully synthesized pantetheine, a chemical essential for all living things, in lab conditions mimicking early Earth. The compound is crucial for metabolism and may have played a role in the emergence of life on Earth.
University of North Carolina at Chapel Hill researchers have developed a new drug delivery platform that harnesses helical amyloid fibers designed to untwist and release drugs in response to body temperatures. This discovery could be useful in treatment to reverse Alzheimer’s Disease impact by degrading amyloid plaques.
Researchers have developed a novel biohybrid catalyst that uses an anchor peptide to oxidize polystyrene microparticles, making them degradable. The catalyst accelerates the formation of polar OH groups through reaction with Oxone, allowing for efficient breakdown and degradation of polystyrene.
Researchers found that widely used machine learning tools produce biased results for immunotherapy research, as they rely heavily on datasets from higher-income communities. This can lead to ineffective treatments for lower-income populations. The study highlights the need for accurate and unbiased data in machine learning models.
A study published in Nature Communications reports the discovery of a wound-homing molecule called CAR peptide, which accelerates tissue repair by activating natural healing pathways. The treatment shows promise for treating various injuries, including muscle ruptures and bone fractures, without forming less functional scar tissue.