19,421 results match your criteria: "Weizmann Institute.[Affiliation]"
Nat Microbiol
December 2024
Department of Molecular Biology and Microbiology, Tufts University School of Medicine and Stuart B. Levy Center for Integrated Management of Antimicrobial Resistance, Boston, MA, USA.
Sci Adv
November 2024
Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
Cloud microphysics studies include how tiny cloud droplets grow and become rain. This is crucial for understanding cloud properties like size, life span, and impact on climate through radiative effects. Small weak-updraft clouds near the haze-to-cloud transition are especially difficult to measure and understand.
View Article and Find Full Text PDFCommun Med (Lond)
November 2024
Department for Brain Sciences, Weizmann Institute of Science, Rehovot, Israel.
Background: Breathing patterns may inform on health. We note that the sites of earliest brain damage in Parkinson's disease (PD) house the neural pace-makers of respiration. We therefore hypothesized that ongoing long-term temporal dynamics of respiration may be altered in PD.
View Article and Find Full Text PDFNat Commun
November 2024
Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Antiviral STANDs (Avs) are bacterial anti-phage proteins evolutionarily related to immune pattern recognition receptors of the NLR family. Type 2 Avs proteins (Avs2) were suggested to recognize the phage large terminase subunit as a signature of phage infection. Here, we show that Avs2 from Klebsiella pneumoniae (KpAvs2) can recognize several different phage proteins as signature for infection.
View Article and Find Full Text PDFNat Commun
November 2024
DAMTP, University of Cambridge, Cambridge, UK.
Time crystals are a dynamical phase of periodically driven quantum many-body systems where discrete time-translation symmetry is broken spontaneously. Time-crystallinity however subtly requires also spatial order, ordinarily related to further symmetries, such as spin-flip symmetry when the spatial order is ferromagnetic. Here we define topologically ordered time crystals, a time-crystalline phase borne out of intrinsic topological order-a particularly robust form of spatial order that requires no symmetry.
View Article and Find Full Text PDFJ Phys Chem Lett
November 2024
Schulich Faculty of Chemistry, Solid State Institute, Russell Berrie Nanotechnology Institute, Helen Diller Quantum Information Center and the Grand Technion Energy Program, Technion, Haifa 3200003, Israel.
Halide perovskites (HPs) are crystalline solids that feature a unique softness, absent in conventional semiconducting materials. In recent years, this softness has been pivotal to many properties in these materials, in both static and dynamic regimes. Here, we focus on the two-dimensional (2D) (PEA)PbI crystal.
View Article and Find Full Text PDFPLoS One
November 2024
Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Flow cytometry enables quantitative measurements of fluorescence in single cells. The technique was widely used for immunology to identify populations with different surface protein markers. More recently, the usage of flow cytometry has been extended to additional readouts, including intracellular proteins and fluorescent protein transgenes, and is widely utilized to study developmental biology, systems biology, microbiology, and many other fields.
View Article and Find Full Text PDFiScience
November 2024
Translational Stroke Laboratory Group (TREAT), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain.
The blood enzyme glutamate-oxaloacetate transaminase (GOT) has been postulated as an effective therapeutic to protect the brain during stroke. To demonstrate its potential clinical utility, a new human recombinant form of GOT (rGOT) was produced for medical use. We tested the pharmacokinetics and evaluated the protective efficacy of rGOT in rodent and non-human primate models that reflected clinical stroke conditions.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
November 2024
Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel.
Lipid bilayers, ubiquitous in living systems, form lubricious boundary layers in aqueous media, with broad relevance for biolubrication, especially in mechanically stressed environments such as articular cartilage in joints, as well as for modifying material interfacial properties. Model studies have revealed efficient lubricity by single-component lipid bilayers; synovial joints, however (e.g.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
November 2024
Lamont Doherty Earth Observatory, Columbia University, Palisades, NY 10964.
The mechanisms underlying the current greenhouse gas (GHG) forced decline in Mediterranean rainfall remain a matter of debate. To inform our understanding of the current and projected drying, we examined extended arid intervals in the late Quaternary, Eastern Mediterranean (EM) Levant indicated by substantial salt deposits in a Dead Sea sediment core covering the past 220 kyr. These arid events occurred during interglacials, when the Earth was at perihelion to the sun in boreal fall and during glacial-interglacial transitions, associated with icesheet melting.
View Article and Find Full Text PDFPLoS Comput Biol
November 2024
Achilles Therapeutics UK Ltd, United Kingdom.
Neoantigen immunogenicity prediction is a highly challenging problem in the development of personalised medicines. Low reactivity rates in called neoantigens result in a difficult prediction scenario with limited training datasets. Here we describe ImmugenX, a modular protein language modelling approach to immunogenicity prediction for CD8+ reactive epitopes.
View Article and Find Full Text PDFJ Am Chem Soc
November 2024
Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel.
The ability to obtain quantitative spatial information on subcellular processes of deep tissues has been a long-standing challenge for molecular magnetic resonance imaging (MRI) approaches. This challenge remains even more so for quantifying readouts of genetically engineered MRI reporters. Here, we set to overcome this challenge with a molecular system designed to obtain quantitative H-MRI maps of a gene reporter.
View Article and Find Full Text PDFMethods Mol Biol
November 2024
Department of Systems Immunology, The Weizmann Institute of Science, Rehovot, Israel.
J Clin Med
November 2024
Department of Anaesthesiology, University Hospital Bonn, 53127 Bonn, Germany.
: Decreased cerebral oximetry (rSO) in cardiac surgery is associated with postoperative delirium (POD). However, interventions optimizing intraoperative rSO are inconclusive. : In this prospective observational cohort study, the relationship between rSO, middle cerebral artery blood flow velocity (MCAV), and processed EEG was assessed in cardiac surgery patients with and without POD.
View Article and Find Full Text PDFJ Am Chem Soc
November 2024
Laboratoire de Chimie des Polymères, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium.
Controlling polymorphism, namely, the occurrence of multiple crystal forms for a given compound, is still an open technological challenge that needs to be addressed for the reliable manufacturing of crystalline functional materials. Here, we devised a series of 13 organic crystals engineered to embody molecular fragments undergoing specific nanoscale motion anticipated to drive cooperative order-disorder phase transitions. By combining polarized optical microscopy coupled with a heating/cooling stage, differential scanning calorimetry, X-ray diffraction, low-frequency Raman spectroscopy, and calculations (density functional theory and molecular dynamics), we proved the occurrence of cooperative transitions in all the crystalline systems, and we demonstrated how both the molecular structure and lattice dynamics play crucial roles in these peculiar solid-to-solid transformations.
View Article and Find Full Text PDFCells
November 2024
Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel.
The cell adhesion molecule L1CAM (L1), mainly known for its function in brain cells, is a Wnt/β-catenin signaling target gene in colorectal cancer (CRC) cells, where it promotes invasion and liver metastasis. We interrogated which genes are expressed at increased levels in human CRC tissue and induced in CRC cell lines overexpressing L1. We found increased cyclin D2 levels in CRC tissue and LS 174T and HCT 116 human CRC cells overexpressing L1.
View Article and Find Full Text PDFCore facilities are crucial for cutting-edge scientific research in academic institutions, yet they place a significant financial burden on budgets. The viability of these facilities can be improved through cross-institutional collaborations, although initiating and sustaining such partnerships poses challenges. Insights from Israel's recent nationwide organization of core facilities could offer valuable lessons for fostering similar cooperation elsewhere.
View Article and Find Full Text PDFBioorg Med Chem
December 2024
Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI 48109, USA; Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA; Center of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA; Michigan Institute for Computational Discovery and Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Michigan Institute for Data and AI in Society, University of Michigan, Ann Arbor, MI 48109, USA. Electronic address:
A series of 2-arylhydrazinylidene-3-oxo acids (AHOAs) was prepared by dealkylation of alkyl-2-arylhydrazinylidene-3-oxo-3-alkanoates with AlBr. Using X-Ray, NMR spectroscopy, and quantum mechanical calculations (QM), the existence of AHOAs in a thermodynamically favorable Z-form stabilized by two intramolecular H-bonds was established. All AHOAs had acceptable ADME parameters.
View Article and Find Full Text PDFBMC Med
November 2024
Department of Computer Science and Applied Mathematics, The Weizmann Institute of Science, Rehovot, Israel.
Nat Aging
November 2024
Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel.
Aging varies significantly among individuals of the same chronological age, indicating that biological age (BA), estimated from molecular and physiological biomarkers, may better reflect aging. Prior research has often ignored sex-specific differences in aging patterns and mainly focused on aging biomarkers from a single data modality. Here we analyze a deeply phenotyped longitudinal cohort (10K project, Israel) of 10,000 healthy individuals aged 40-70 years that includes clinical, physiological, behavioral, environmental and multiomic parameters.
View Article and Find Full Text PDFPlant Physiol
December 2024
Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
Osmotic stress, caused by the lack of water or by high salinity, is a common problem in plant roots. Osmotic stress can be reproducibly simulated with the application of solutions of the high-molecular-weight and impermeable polyethylene glycol. The accumulation of different reactive oxygen species, such as singlet oxygen, superoxide, and hydrogen peroxide, accompany this stress.
View Article and Find Full Text PDFAcc Chem Res
November 2024
Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel.
bioRxiv
October 2024
Department of Molecular Pharmacology and Therapeutics, Columbia University, New York City, NY, USA.
Tumor progression is driven by dynamic interactions between cancer cells and their surrounding microenvironment. Investigating the spatiotemporal evolution of tumors can provide crucial insights into how intrinsic changes within cancer cells and extrinsic alterations in the microenvironment cooperate to drive different stages of tumor progression. Here, we integrate high-resolution spatial transcriptomics and evolving lineage tracing technologies to elucidate how tumor expansion, plasticity, and metastasis co-evolve with microenvironmental remodeling in a -driven mouse model of lung adenocarcinoma.
View Article and Find Full Text PDFGenes Immun
December 2024
The Laboratory of Molecular Biology, Department of Surgery and Transplantation, Sheba Medical Center, Tel-Hashomer, Faculty of Medicine and Medical Sciences, Tel-Aviv University, Tel-Aviv, Israel.
Liver regeneration following resection is a complex process relying on coordinated pathways and cell types in the remnant organ. Myeloid-Derived Suppressor Cells (MDSCs) have a role in liver regeneration-related angiogenesis but other roles they may play in this process remain to be elucidated. In this study, we sought to examine the effect of G-MDSCs on hepatocytes proliferation and immune modulation during liver regeneration.
View Article and Find Full Text PDFHippocampus
December 2024
Department of Brain Sciences, The Weizmann Institute, Rehovot, Israel.
Extensive research has been focused in the past century on structural, physiological, and molecular attributes of the hippocampus. This interest was created by the unique involvement of the hippocampus in cognitive and affective functions of the brain. Functional analysis revealed that the hippocampus has divergent properties along its axial dimension to the extent that the dorsal sector (dorsal hippocampus, DH) has different connections with the rest of the brain than those of the ventral sector (VH).
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