Articles tagged with Peptides
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
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Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
High-resolution cryo-electron microscopy reveals the structural changes in the bacterial ribosome that result in resistance to erythromycin. The study sheds light on how bacteria acquire resistance genes and how they interact with antibiotics.
Researchers distinguish different types of beta-amyloid aggregates and find that those with 20 to 100 units are most toxic, leading to neuronal death. The study provides evidence for the hypothesis that intermediate aggregates cause neuronal death.
Two new peptide vaccines and two peptide inhibitors targeting HER-3 and IGF-1R receptors have been developed by Ohio State Researchers. The studies show that combining these agents can boost effectiveness and prevent drug resistance, leading to improved response rates and durable remissions for various types of cancer.
Researchers develop a new method called synthetic fermentation to rapidly synthesize large numbers of bioactive molecules using just a few building blocks. The method enables the generation of about 6,000 unnatural peptide-like molecules directly screened for biological activity without purification.
A study published in The FASEB Journal identifies a salamander skin peptide called tylotoin that promotes wound healing by enhancing keratinocyte proliferation and releasing essential growth factors. This discovery could lead to the development of new treatments for human wounds.
Researchers discovered a peptide mimicking high-density lipoprotein (HDL) protein helps reduce oxidized lipids in pulmonary hypertension, improving heart and lung function. The study also found elevated levels of oxidized proteins in rodents with the disease, which can be targeted for treatment development.
Researchers found that apolipoprotein E-derived therapeutic peptide improved synaptic stability and learning and memory performance after diffuse brain injury. The peptide also protected against brain injury by reducing oxidative stress, suppressing the ERK1/2-Bax mitochondrial apoptotic pathway, and decreasing neuronal death.
Researchers have developed a recombinant adenovirus expressing Aβ-ABAD decoy peptide, which increases superoxide dismutase activity and decreases oxidative stress markers in PC12 cells. This study suggests that rAAV/ABAD-DP-6His may be a potential therapeutic strategy for Alzheimer's disease.
A synthesized version of tumor necrosis factor's tip appears to work like a doorstop to keep sodium channels open inside the lungs' air sacs, clearing excess fluid. The TIP peptide may help patients survive pneumonia by targeting bacterial toxins and promoting natural defense mechanisms.
A new method has been developed to produce artificial anti-cancer molecules with properties similar to those of the body's natural defense systems. The molecules have proved effective against colon cancer cells in laboratory tests and show promise for further research.
Researchers identified proteinaceous binding media used in polychrome layers of Qin Shihuang's terracotta army. Natural pigments and binding media were found to be composed of cinnabar, apatite, azurite, and malachite.
The study reveals how hemagglutinin protein reconfigures itself as it infects host cells, providing new insights into the path of the flu virus. This understanding could lead to the development of a universal flu vaccine that lasts a lifetime.
Researchers at Arizona State University have developed a new diagnostic tool called immunosignaturing to identify valley fever, which can be misdiagnosed due to low sensitivity of current methods. This technique uses a microarray platform to produce a detailed profile of immune activity from a small droplet of blood, allowing for accur...
Researchers have developed a innovative technique called immunosignaturing to capture disease complexity, offering a marked improvement in detection over traditional methods. The technique uses a microarray to profile antibodies circulating in blood, demonstrating high accuracy in identifying multiple diseases.
A novel AD vaccine, Plp-Adeno-X-CMV-(Aβ3-10)10-CpG, was administered via nasal mucosal inhalation to AD transgenic mouse models, producing strong T helper 2 humoral immune responses and reducing Aβ1-42-induced cytotoxicity. This approach offers a promising therapeutic strategy for Alzheimer's disease.
Researchers have identified specific neural groups in female fruit flies that regulate their choice to mate, revealing new clues for understanding human sexual behavior. These findings could provide a starting point for exploring the neural mechanisms underlying courtship behaviors in other species.
Researchers analyzed Stanley Miller's old samples and replicated his 1958 experiment, finding peptides formed under basic conditions. This discovery suggests a new path to the formation of proteins and enzymes necessary for life.
Researchers at UW–Madison have built a version of a parathyroid hormone that can stay around longer and at higher concentrations. This breakthrough could lead to better drugs for osteoporosis and diabetes by protecting peptide hormones from degrading enzymes.
Researchers found that apolipoprotein E-derived therapeutic peptide improves synaptic stability and learning memory performance after diffuse brain injury. Apolipoprotein E mimetic peptide also reduces neuronal apoptosis by suppressing the ERK1/2-Bax mitochondrial apoptotic pathway.
Scientists have discovered a potential new target for cancer immunotherapy, peptide antibodies that deplete immune-suppressing MDSCs without harming other vital cells. The treatment showed promising results in preclinical experiments, shrinking tumors and improving outcomes.
Researchers have discovered a common rulebook for the immune system's T cells, enabling faster identification of antigens and potential treatments. This breakthrough could lead to improved understanding of autoimmune diseases like diabetes and multiple sclerosis.
The study found that rAAV/ABAD-DP-6His increases superoxide dismutase activity and decreases malondialdehyde content, reducing oxidative stress-induced injury in PC12 cells. The treatment also maintains mitochondrial membrane potential and reduces apoptosis, indicating its neuroprotective effects.
Researchers developed novel double-stapled peptides that inhibit RSV in cells and mice, and when delivered with nanoparticles, showed significant inhibition of RSV infection. The therapy has potential to prevent and treat RSV infection in high-risk groups such as infants, young children, and the elderly.
Researchers developed a double-stapled peptide that prevents RSV infection by stabilizing its structure, allowing for effective prevention in both cell culture and murine models. Additionally, intranasal and intratracheal delivery methods were found to be effective in preventing nasopulmonary infection.
Researchers at Tel Aviv University have developed a new prototype battery that can fully charge a smartphone in under a minute, using nanodots derived from bio-organic materials. The technology increases electrode capacity and electrolyte performance, making it more efficient and eco-friendly than current battery technologies.
Syracuse University chemists discover enzyme-like activity in seven amino acid peptides, shedding light on the origins of life and potential new catalysts for metabolic reactions. The breakthrough supports the theory that amyloid fibrils may have triggered early forms of life.
Researchers found that Wen Dan Tang significantly reduced insomnia-related anxiety in a sleep-deprived rat model. The traditional Chinese Medicine remedy also prevented decreased Ghrelin levels following sleep deprivation and increased Ghrelin receptor mRNA expression in the hypothalamus.
Researchers at CAMH have developed a nasal spray that delivers a peptide to treat depression, providing an alternative therapeutic approach. The peptide treatment interferes with dopamine receptors, leading to anti-depressant effects and showing potential in relieving symptoms.
Scientists create peptide mimetic that can be controlled by light, increasing antimicrobial effect and reducing side effects. The development opens new options for treating local bacterial infections and may lead to new agents against cancer.
A team of MIT chemists has designed a way to manufacture peptides in mere hours, which could have a major impact on peptide drug development. The new system can assemble an entire peptide in under an hour, allowing for rapid testing and design of new peptides.
A team of scientists has discovered a new therapeutic target for Alzheimer's disease by blocking the production of key neurotoxic peptides linked to the condition. The drug candidate, E64d, has been shown to be safe in humans and has improved memory deficits in mouse models.
Researchers create experimental substances based on a tiny protein found in cone snail venom that could lead to the development of safe and effective oral medications for chronic nerve pain. The new substances are about 100 times more potent than morphine or gabapentin, with fewer side effects and lower risk of abuse.
Researchers at Henry Ford Hospital found that the peptide AcSDKP provides neurological protection when administered after a stroke, reducing neurovascular damage and improving outcomes. The study also showed that combining AcSDKP with tPA extended the therapeutic window for up to four hours after stroke.
A new paper diagnostic for cancer has been developed by MIT engineers, which can detect the disease in minutes using a urine sample. The technology relies on nanoparticles that interact with tumor proteins, releasing biomarkers that are easily detectable in urine.
Researchers are exploring the properties of amyloid beta peptides, implicated in Alzheimer's disease. By understanding their behavior, they hope to identify structures that lead to toxic aggregates and develop treatments.
Researchers have developed 'smart' gold nanoshells that target cancer cells specifically, delivering anticancer drugs and converting near-infrared light into heat. This breakthrough could lead to more effective cancer treatments by overcoming the limitation of traditional chemotherapy techniques.
Scientists have developed a faster and more specific method to detect bacteria-tainted food, using nanomechanical cantilevers that can identify eight different types of Salmonella. The technique has the potential to prevent food poisoning and save thousands of lives annually.
Researchers at Rice University have developed a novel biosensor that can detect multiple strains of salmonella pathogens in food quickly and easily. The sensor uses microcantilevers decorated with peptides to identify the presence of specific bacteria, delivering results within minutes and outperforming existing standard tests.
Scientists at Rensselaer Polytechnic Institute discovered the structural effects of V44M and V44A genetic mutations linked to FAD. The mutations lead to increased production of toxic Amyloid Beta 42 peptide, driving memory failure in patients.
A new vascular homing peptide, CAR, selectively targets hypertensive pulmonary arteries to enhance the effects of existing vasodilators without systemic side effects. The peptide retains its activity when given sublingually, offering a potential breakthrough in PAH treatment.
Researchers have developed nanoscale patches that can be used to sensitize targeted cell receptors, making them more responsive to signals. This technology holds promise for promoting healing and facilitating tissue engineering research.
Northwestern University researchers have developed a new technique to profile enzyme activities in cell lysate, providing a fast, low-cost, and label-free method for studying post-transcriptional processes. By using peptide arrays and SAMDI mass spectrometry, the researchers were able to identify patterns of enzyme activities and shed ...
Researchers developed a diagnostic method that reveals factors behind conditions thought to have environmental triggers by decoding an individual's immune system. The process identifies disease-specific antibodies and their corresponding antigens, providing insight into conditions like Type-1 diabetes, autism, and Alzheimer's disease.
Researchers at Houston Methodist have developed a technology that can detect breast cancer biomarkers in blood samples, potentially leading to early diagnosis. The technology uses carboxypeptidase N enzyme to separate and detect peptides created by the enzyme in blood serum proteins.
Researchers at UAB designed an antibody fragment that cleared Aβ peptide oligomers from the cerebral cortex, reversing anxiety and learning memory deficits in mice. The treatment also improved apolipoprotein levels, suggesting a potential therapeutic approach for Alzheimer's disease.
Researchers have developed a simple and reliable urine test to detect blood clots, which can cause life-threatening conditions. The test uses synthetic biomarkers that can sense vascular diseases remotely from the urine.
Researchers at Cardiff University have created a peptide linked to a light-responsive dye that triggers cell death in cancerous cells. The new pathway activation technology, called transient photoactivation, enables scientists to precisely define the area where peptides should act, leading to more effective treatment strategies.
Scientists at UTHealth Medical School developed a brown fat detection method that worked in an animal model, providing a new tool to fight obesity. The peptide probe can be used for whole-body imaging and localization of brown fat tissue.
Preclinical data published in PNAS shows ATSP-7041 suppresses tumor growth in animal models of multiple human xenograft models, including breast cancer and bone cancer. The peptide efficiently penetrates cell membranes and restores p53 function by inhibiting MDM2 and MDMX.
Researchers develop bioengineered peptide to distinguish tumors from healthy tissue, demonstrating promising results in imaging medulloblastomas in lab mice. The new approach offers real-time imaging and potential for targeted drug delivery to cranial tumors.
Researchers have developed two new classes of compounds that target the gamma-secretase enzyme to treat Alzheimer's disease. These compounds produce shorter forms of amyloid peptide 38, which do not aggregate into neurotoxic plaques. Early-onset hereditary forms of Alzheimer's may be linked to mutations in the APP protein gene, leading...
Researchers found that Arg-Phe-amide-related peptide-1 modulates the hypothalamus-pituitary-gonadal axis by inhibiting kisspeptin-activated gonadotropin-releasing hormone neurons. The study also revealed a potential role for gonadotropin-inhibitory hormone in regulating reproductive development.
A study found that collaborative care with brain-type natriuretic peptide (BNP) screening reduced the combined rates of left ventricular systolic dysfunction, diastolic dysfunction, and heart failure. BNP levels above 50 pg/mL identified patients at higher risk for cardiovascular events.
Researchers have synthesized peptides that change shape upon irradiation with light, allowing control of protein-protein interactions and endocytosis. These molecules have immediate applicability for studying cancer cells and developmental biology, paving the way for optopharmacology and personalized medicine.
A study found that diet high in saturated fat increased LD αβ levels, while diet low in saturated fat decreased these fractions. The study suggests that lipidation states of apolipoproteins and amyloid peptides may play a role in AD pathological processes.
A new study found a link between fetal exposure to bisphenol A (BPA) and lower levels of insulin-like peptide 3, a key testicular hormone. This could be a co-factor in the development of cryptorchidism, a common birth defect in boys.
Researchers at Tel Aviv University developed a peptide called NAP that protects and restores microtubule function in brain cells. In animal models with microtubule damage, NAP maintained or revived protein transport, ameliorating neurodegeneration symptoms.
Researchers at Araclon Biotech have developed a blood test to measure beta amyloid peptides, which are associated with Alzheimer's disease. The test shows a high level of association between peptide levels and the disease, suggesting a potential biomarker for early diagnosis.
Researchers at OHSU have discovered a strategy to increase the number of viral peptides that T cells recognize, allowing them to more effectively respond to HIV. The method uses cytomegalovirus (CMV) to generate SIV-specific T cells that can target multiple viral peptides, providing a better targeting system for the immune system.
Researchers have discovered a cell-permeable peptide that reduces nuclear NF-ĸB activity in vascular smooth muscle cells and macrophages of aortic plaques. The peptide also inhibits lesion development in mice with a high-fat diet.