14,601 results match your criteria: "Technion-Israel Institute of technology[Affiliation]"

Positron emission tomography (PET) imaging plays a pivotal role in oncology for the early detection of metastatic tumors and response to therapy assessment due to its high sensitivity compared to anatomical imaging modalities. The balance between image quality and radiation exposure is critical, as reducing the administered dose results in a lower signal-to-noise ratio (SNR) and information loss, which may significantly affect clinical diagnosis. Deep learning (DL) algorithms have recently made significant progress in low-dose (LD) PET reconstruction.

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Amyloid β (Aβ) has emerged as a pathophysiological driver in age-related macular degeneration (AMD), emphasizing its significance in the aetiology of this prevalent sight-threatening condition. The multifaceted nature of AMD pathophysiology, presumably involving diverse retinal cascades, corresponds with the complexity of Aβ-induced retinopathy. Therefore, targeting a broad array of pathogenic processes holds promise for therapeutic intervention in AMD-associated retinal pathology.

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The human microbiome exerts profound influence over various biological processes within the body. Unlike many host determinants, it represents a readily accessible target for manipulation to promote health benefits. However, existing commercial microbiome-directed products often exhibit low efficacy.

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Background: Tremor in essential tremor and in tremor-dominant Parkinson's disease is assessed by subjective observations in patients undergoing focused ultrasound thalamotomy, a minimally invasive procedure intended to alleviate tremor in these patients.

Objective: To develop an objective tool for tremor analysis to be used before and after focused ultrasound thalamotomy treatment in the treated hand (contralateral to ablation) and non-treated (ipsilateral to ablation).

Methods: Using image processing and signal processing that utilized images of a Archimedes spiral drawing, we created a tool to analyze tremor.

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Harnessing the power of human breast milk to boost intestinal permeability for nanoparticles and macromolecules.

J Control Release

January 2025

Laboratory for Bioinspired Nano Engineering and Translational Therapeutics, Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel; Russell-Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa 3200003, Israel; Cardiovascular Sciences Department, Houston Methodist Academic Institute, Houston, TX 77030, United States; Neurosurgery Department, Houston Methodist Academic Institute, Houston, TX 77030, United States; Resnick Sustainability Center of Catalysis, Technion-Israel Institute of Technology, Haifa 3200003, Israel; Bruce and Ruth Rappaport Cancer Research Center, Technion-Israel Institute of Technology, Haifa 3200003, Israel. Electronic address:

The intricate interplay between human breast milk, nanoparticles, and macromolecules holds promise for innovative nutritional delivery strategies. Compared to bovine milk and infant formula, this study explores human breast milk's role in modulating intestinal permeability and its impact on nanoparticle and macromolecule transport. Comparative analysis with bovine milk and infant formula reveals significant elevations in permeability with human breast milk, accompanied by a decrease in transepithelial electrical resistance, suggesting enhanced paracellular transport.

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The budding yeast Xrn1 protein shuttles between the nucleus, where it stimulates transcription, and the cytoplasm, where it executes the major cytoplasmic mRNA decay. In the cytoplasm, apart from catalyzing 5'→3' decay onto non translated mRNAs, Xrn1 can follow the last translating ribosome to degrade the decapped mRNA template, a process known as "cotranslational mRNA decay". We have previously observed that the import of Xrn1 to the nucleus is required for efficient cytoplasmic mRNA decay.

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Objectives: A strong association exists between left atrial (LA) structural remodeling and the development of atrial fibrillation (AF). The role of LA function in AF prediction remains unclear. We studied the relationship between LA function and incident AF using cardiac CT.

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Objective: To evaluate triage nurses' clinical judgment in determining short acting β2-agonist bronchodilator therapy need for children with shortness of breath in the pediatric emergency department, without prior physician assessment.

Methods: This prospective study compared decision-making between triage nurses and physicians regarding bronchodilator inhalation therapy necessity. Trained nurses assessed children aged 2-18 with shortness of breath, including history-taking, vital signs, and lung auscultation.

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Modulation of DAPK1 expression by its alternative splice variant DAPK1-215 in cancer.

J Transl Med

January 2025

Fujian-Macao Science and Technology Cooperation Base of Traditional Chinese Medicine-Oriented Chronic Disease Prevention and Treatment, Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350001, China.

Background: Death-Associated Protein Kinase 1 (DAPK1) family members are calcium/calmodulin-regulated serine/threonine kinases implicated in cell death, normal development, and human diseases. However, the regulation of DAPK1 expression in cancer remains unclear.

Methods: We examined the expression and functional impact of a DAPK1 splice variant, DAPK1-215, in multiple cancer cell lines.

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Trust in scientists and their role in society across 68 countries.

Nat Hum Behav

January 2025

Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, the Netherlands.

Science is crucial for evidence-based decision-making. Public trust in scientists can help decision makers act on the basis of the best available evidence, especially during crises. However, in recent years the epistemic authority of science has been challenged, causing concerns about low public trust in scientists.

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Science is integral to society because it can inform individual, government, corporate, and civil society decision-making on issues such as public health, new technologies or climate change. Yet, public distrust and populist sentiment challenge the relationship between science and society. To help researchers analyse the science-society nexus across different geographical and cultural contexts, we undertook a cross-sectional population survey resulting in a dataset of 71,922 participants in 68 countries.

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AI-based automatic patient positioning in a digital-BGO PET/CT scanner: efficacy and impact.

EJNMMI Phys

January 2025

Department of Nuclear Medicine, Rambam Health Care Campus, P.O.B. 9602, 3109601, Haifa, Israel.

Background: A recently released digital solid-state positron emission tomography/x-ray CT (PET/CT) scanner with bismuth germanate (BGO) scintillators provides an artificial intelligence (AI) based system for automatic patient positioning. The efficacy of this digital-BGO system in patient placement at the isocenter and its impact on image quality and radiation exposure was evaluated.

Method: The digital-BGO PET/CT with AI-based auto-positioning was compared (χ, Mann-Whitney tests) to a solid-state lutetium-yttrium oxyorthosilicate (digital-LYSO) PET/CT with manual patient positioning (n = 432 and 343 studies each, respectively), with results split into groups before and after the date of a recalibration of the digital-BGO auto-positioning camera.

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Background: Myasthenia gravis (MG) is strongly associated with thymic tumors, but whether it is also associated with extrathymic cancers is debatable or whether MG can be considered a paraneoplastic disorder for extrathymic cancers.

Methods: This is a retrospective analysis of the MG cohort for 23 years' time (January 2000 to May 2023), extracting cancer rates with clinical, electrophysiological, and biochemical cancer associations and the effect of chronic medications.

Results: We identified 436 patients with MG and 3924 controls.

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Fragment-based screening is an efficient method for early-stage drug discovery. In this study, we aimed to create a fragment library optimized for producing high hit rates against RNA targets. RNA has historically been an underexplored target, but recent research suggests potential for optimizing small molecule libraries for RNA binding.

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The activity of miRNA varies across different cell populations and systems, as part of the mechanisms that distinguish cell types and roles in living organisms and in human health and disease. Typically, miRNA regulation drives changes in the composition and levels of protein-coding RNA and of lncRNA, with targets being down-regulated when miRNAs are active. The term "miRNA activity" is used to refer to this transcriptional effect of miRNAs.

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Daily participation in preterm-born children: An exploratory and comparative study.

Early Hum Dev

January 2025

Department of Pediatrics, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel; Neonatal Intensive Care Unit, Rambam Health Care Campus, Israel. Electronic address:

Background: Preterm birth, particularly with lower gestational age and respiratory complications, can impact neurodevelopmental outcomes and participation in daily activities. Understanding how these children engage in everyday tasks, particularly from the perspective of their parents, is critical for assessing long-term health outcomes and quality of life.

Objectives: This study aims to assess parental perceptions of participation and daily performance in children born preterm, comparing early preterm infants with and without chronic lung disease, late preterms, and term-born children.

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Rationale: To examine the acute effects of ayahuasca use and their relationship to sub-acute changes in affect and mindfulness in a non-clinical sample, addressing the need for a better understanding of ayahuasca's immediate and short-term impacts as interest in its use grows.

Objectives: Using prospective ecological assessment, this study investigates how ayahuasca used at a 4-day retreat affects positive/negative affect and mindfulness skills in daily living compared to pre-retreat. Additionally, we explore acute psychedelic experiences during the ayahuasca retreat, assessed retrospectively 1-2 days post-retreat, as potential mechanisms for theorized effects in daily living post-retreat.

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Large Language Models (LLMs) have shown success in predicting neural signals associated with narrative processing, but their approach to integrating context over large timescales differs fundamentally from that of the human brain. In this study, we show how the brain, unlike LLMs that process large text windows in parallel, integrates short-term and long-term contextual information through an incremental mechanism. Using fMRI data from 219 participants listening to spoken narratives, we first demonstrate that LLMs predict brain activity effectively only when using short contextual windows of up to a few dozen words.

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Discovery of a DNA methylation profile in individuals with Sifrim-Hitz-Weiss syndrome.

Am J Hum Genet

January 2025

Genetics Institute, Rambam Health Care Campus, Haifa, Israel; Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. Electronic address:

Pathogenic heterozygous variants in CHD4 cause Sifrim-Hitz-Weiss syndrome, a neurodevelopmental disorder associated with brain anomalies, heart defects, macrocephaly, hypogonadism, and additional features with variable expressivity. Most individuals have non-recurrent missense variants, complicating variant interpretation. A few were reported with truncating variants, and their role in disease is unclear.

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Spectrally encoded flow cytometry using few-mode fiber collection.

Biomed Opt Express

January 2025

Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.

In fiber-based confocal microscopy, using two separate fibers for illumination and collection enables the use of a few-mode fiber to achieve an effect similar to opening the pinhole in a conventional confocal microscope. In some Fourier-domain applications, however, or when a spectral measurement is involved, the coherent light detection would lead to noticeable spectral modulation artifacts that result from differential mode delay, an effect caused by the multimode propagation in the collection fiber. After eliminating these artifacts by using mode-dependent polarization control, we demonstrate effective spectrally encoded imaging with improved signal efficiency and lower speckle noise, and only a minor, negligible reduction in lateral and axial resolutions.

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IMPACT: In-Memory ComPuting Architecture based on Y-FlAsh Technology for Coalesced Tsetlin machine inference.

Philos Trans A Math Phys Eng Sci

January 2025

Microsystems Group, School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.

The increasing demand for processing large volumes of data for machine learning (ML) models has pushed data bandwidth requirements beyond the capability of traditional von Neumann architecture. In-memory computing (IMC) has recently emerged as a promising solution to address this gap by enabling distributed data storage and processing at the micro-architectural level, significantly reducing both latency and energy. In this article, we present In-Memory comPuting architecture based on Y-FlAsh technology for Coalesced Tsetlin machine inference (IMPACT), underpinned on a cutting-edge memory device, Y-Flash, fabricated on a 180 nm complementary metal oxide semiconductor (CMOS) process.

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The two-fold reduction of tetrabenzo[a,c,e,g]cyclooctatetraene (TBCOT, or tetraphenylene, 1) with K, Rb, and Cs metals reveals a distinctive core transformation pathway: a newly formed C-C bond converts the central eight-membered ring into a twisted core with two fused five-membered rings. This C-C bond of 1.589(3)-1.

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Tailoring Design of Microneedles for Drug Delivery and Biosensing.

Mol Pharm

January 2025

Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.

Microneedles (MNs) are emerging as versatile tools for both therapeutic drug delivery and diagnostic monitoring. Unlike hypodermic needles, MNs achieve these applications with minimal or no pain and customizable designs, making them suitable for personalized medicine. Understanding the key design parameters and the challenges during contact with biofluids is crucial to optimizing their use across applications.

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