8,676 results match your criteria: "A.Y.; and the University of Edinburgh[Affiliation]"

This paper presents a self-powered biosensing platform based on graphdiyne@Au (2D GDY@Au) nanoparticles and rolling circle-hybridization chain (RC-HC) dual linear cascade amplification technology, which significantly enhances target recognition and signal amplification efficiency for miRNA-141. Specifically, the target on bioanode outputs a large amount of single-stranded DNA (T1) through the strand displacement amplification (SDA) mechanism. This efficient target recycling process triggers RC-HC dual linear cascade reaction.

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Magnitude and Time-Course of Dementia Risk in Stroke Survivors: A Population-Wide Matched Cohort Study.

Neurology

January 2025

From the Division of Neurology (R.A.J., M.S.), Hamilton Health Sciences, McMaster University & Population Health Research Institute, Hamilton; ICES (J.F., P.C.A., A.Y.X.Y.), Toronto, Ontario; Departments of Clinical Neurosciences and Community Health Sciences (E.E.S., A.G.), Cumming School of Medicine, University of Calgary, Alberta; Division of Neurology (A.Y.X.Y.), Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto; Robarts Research Institute (V.H., L.A.S.), Department of Clinical Neurological Sciences, and Department of Epidemiology and Biostatistics, University of Western Ontario, London; and Division of General Internal Medicine (M.K.K.), Department of Medicine, University of Toronto-University Health Network, Ontario, Canada.

Article Synopsis
  • Stroke survivors have a significantly higher risk of developing dementia compared to matched non-stroke populations, with a 1.76 hazard ratio for dementia risk after stroke.
  • In a large-scale study of over 15 million individuals in Ontario, 18.7% of stroke survivors were diagnosed with dementia after a mean follow-up of 5.6 years, compared to 12.5% in the general population.
  • The study found that the risk of dementia is particularly high within the first year after a stroke, with a 2.5-fold increase, though this risk decreases over time.
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Treatment of recurrent tracheal adenoid cystic carcinoma with a covered airway stent loaded with Iodine-125 seeds: a 5-year follow-up case report.

Front Oncol

November 2024

Department of Respiratory and Critical Care Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.

Background: The treatment of recurrent tracheal adenoid cystic carcinoma (TACC), a rare pulmonary malignant tumor, typically involves bronchoscopic interventional therapy for patients ineligible for surgery or external radiotherapy. This report describes an innovative treatment approach for TACC, initially managed with interventional bronchoscopy and subsequently with a Y-shaped airway stent loaded with I seeds, following recurrence after 2 years.

Case Presentation: A 50-year-old man presented with intermittent coughing for 2 months and was admitted to the hospital after the discovery of TACC a month earlier.

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Background: Worldwide, hepatocellular carcinoma (HCC) is the second most lethal cancer, although early-stage HCC is amenable to curative treatment and can facilitate long-term survival. Early detection has proved difficult, as proteomics, transcriptomics, and genomics have been unable to discover suitable biomarkers.

Methods: To find new biomarkers of HCC, we utilized a spatial omics N-glycan imaging method to identify altered glycosylation in cancer tissue (n = 53) and in paired serum of individuals with HCC (n = 23).

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Synthetic lethal strategies for the development of cancer therapeutics.

Nat Rev Clin Oncol

January 2025

Department of Investigational Cancer Therapeutics (Phase I Clinical Trials Program), Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.

Synthetic lethality is a genetic phenomenon whereby the simultaneous presence of two different genetic alterations impairs cellular viability. Importantly, targeting synthetic lethal interactions offers potential therapeutic strategies for cancers with alterations in pathways that might otherwise be considered undruggable. High-throughput screening methods based on modern CRISPR-Cas9 technologies have emerged and become crucial for identifying novel synthetic lethal interactions with the potential for translation into biologically rational cancer therapeutic strategies as well as associated predictive biomarkers of response capable of guiding patient selection.

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Magnetic compression anastomosis (MCA) for esophageal stenosis requires the insertion of magnets through two channels, transoral and transgastrostomy. Herein, we designed a Y-Z deformable self-assembled magnetic anastomosis ring (Y-Z DSAMAR) for esophageal stricture anastomosis through the transoral passage only. We introduce a Y-Z DSAMAR and verify its feasibility for single-access esophageal stenosis anastomosis in isolated organs.

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UBA1 inhibition sensitizes cancer cells to PARP inhibitors.

Cell Rep Med

December 2024

Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Quantitative and Computational Biosciences Program, Baylor College of Medicine, Houston, TX, USA.

Therapeutic strategies targeting the DNA damage response, such as poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi), have revolutionized cancer treatment in tumors deficient in homologous recombination (HR). However, overcoming innate and acquired resistance to PARPi remains a significant challenge. Here, we employ a genome-wide CRISPR knockout screen and discover that the depletion of ubiquitin-activating enzyme E1 (UBA1) enhances sensitivity to PARPi in HR-proficient ovarian cancer cells.

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Visible-Light-Stimulated Optoelectronic Neuromorphic Transistor Based on Indium-Gallium-Zinc Oxide via BiTe Light Absorption Layer.

ACS Appl Mater Interfaces

December 2024

School of Electrical and Electronic Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

To emulate a visual perception system, a bismuth telluride (BiTe)/indium-gallium-zinc oxide (IGZO) heterostructure is introduced for optoelectronic neuromorphic transistors (ONTs). Amorphous IGZO is applied as a channel layer to exhibit low off-current, high mobility, and persistent photoconductivity, enabling light-stimulated neuromorphic characteristics. The atomic ratio of In/Ga/Zn was 9.

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Long-term functional recovery after rib fractures: The impact of frailty.

J Trauma Acute Care Surg

November 2024

From the Division of Trauma, Emergency General Surgery and Surgical Critical Care (W.R., V.S.P., M.A., J.O.H.), Massachusetts General Hospital; Medical College, Harvard Medical School (A.Y.); Center for Surgery and Public Health, Brigham and Women's Hospital (P.H., S.I., G.A.A., J.P.H.-E.); Chobanian and Avedesian School of Medicine (A.H.), Boston University; Medical Center, Beth Israel Deaconess Medical Center (S.G.); Department of Surgery, Boston Medical Center (S.E.S.), Boston, Massachusetts.

Background: Previous studies have shown that patients with rib fractures experience long-term functional limitations. However, the specific predictors of these worse long-term functional limitations remain under-characterized.

Methods: We conducted a prospective cohort study including patients ≥18 years with an injury severity score ≥9 and isolated chest injury.

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Hybridization and introgression are widespread in nature, with important implications for adaptation and speciation. Since heterogametic hybrids often have lower fitness than homogametic individuals, a phenomenon known as Haldane's rule, loci inherited strictly through the heterogametic sex rarely introgress. We focus on the Y-chromosomal history of guenons, African primates that hybridized extensively in the past.

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Addressing frailty in older adults: an integrated challenge for health, science, and society.

Aging (Albany NY)

November 2024

Interdisciplinary Research Group on Musculoskeletal Disorders, Faculty of Sport Sciences, Universidad Europea de Madrid, Villaviciosa de Odón 28670, Spain.

Article Synopsis
  • * Traditional frailty diagnostics are costly and risky; hence, there's a need for innovative, non-invasive tools like ultrasound integrated with machine learning to improve care and accuracy.
  • * Addressing frailty requires a collaborative effort involving public health policies, community programs, and awareness initiatives to enhance the quality of life for older adults and combat health inequalities.
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Bdyof is a Y-chromosome-specific gene required for male development in Bactrocera dorsalis.

Pest Manag Sci

November 2024

National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Hubei Hongshan Laboratory, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China.

Background: In many organisms, the Y chromosome contains important genes associated with sex determination and male reproductive development. However, there have been few studies of Y-chromosome-specific genes in non-model species due to the incomplete information of Y chromosome genome and difficulty in sequencing. Here, we screened 90 candidate Y-specific sequences in a constructed transcriptome assembly library by using the chromosome quotient method, among which 11 were unreported sequences associated with male reproductive development, including Bactrocera dorsalis Y-specific Oligozoospermia factor (Bdyof) with the highest expression in the testis.

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Proteolethargy is a pathogenic mechanism in chronic disease.

Cell

January 2025

Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Electronic address:

The pathogenic mechanisms of many diseases are well understood at the molecular level, but there are prevalent syndromes associated with pathogenic signaling, such as diabetes and chronic inflammation, where our understanding is more limited. Here, we report that pathogenic signaling suppresses the mobility of a spectrum of proteins that play essential roles in cellular functions known to be dysregulated in these chronic diseases. The reduced protein mobility, which we call proteolethargy, was linked to cysteine residues in the affected proteins and signaling-related increases in excess reactive oxygen species.

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Staphylococcus aureus enterotoxin sensitization is associated with declined capsaicin cough sensitivity in chronic obstructive pulmonary disease.

Sci Rep

November 2024

Department of Respiratory Medicine, Allergy, and Clinical Immunology, Graduate school of Medical Sciences, Nagoya City University, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, Japan.

Sensitization to Staphylococcus aureus (S. aureus) enterotoxins (SEs) A (SEA) and B (SEB) is associated with the pathogenesis of several chronic airway diseases, including asthma and chronic rhinosinusitis, but its role in chronic obstructive pulmonary disease (COPD) remains unclear. This cohort study aimed to investigate the impact of sensitization to SEs on total IgE levels, and capsaicin cough reflex sensitivity (C-CS) in COPD.

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Myelodysplastic syndromes (MDS) are associated with anemia and the need for blood transfusions. In clinical trials, luspatercept reduced transfusion dependency among patients with lower-risk MDS. This United States (US) study describes real-world clinical outcomes pre- and post-luspatercept initiation among patients with MDS.

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Obecabtagene Autoleucel in Adults with B-Cell Acute Lymphoblastic Leukemia.

N Engl J Med

December 2024

From the Cancer Institute, University College London (C.R., K.S.P., M.P.), University College London Hospitals NHS Foundation Trust (C.R.), King's College Hospital NHS Foundation Trust (D.Y.), and Autolus Therapeutics (P.L.-S., Y.Z., W.B., E.B., M.P.), London, Manchester Royal Infirmary, Manchester (E.T.), University Hospitals Birmingham NHS Foundation Trust, Birmingham (S.C.), University Hospitals Bristol NHS Foundation Trust, Bristol (K.H.), Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle (T.M.), and Cambridge University Hospitals NHS Foundation Trust, Cambridge (R.M.) - all in the United Kingdom; City of Hope National Medical Center, Duarte (K.S.S.), the Hematology, Blood and Marrow Transplant, and Cellular Therapy Program, University of California, San Francisco, San Francisco (A.C.L.), and UC Davis Medical Center, Sacramento (M.A.) - all in California; the Sarah Cannon Transplant and Cellular Therapy Program, Methodist Hospital, San Antonio (P.S.), and the University of Texas M.D. Anderson Cancer Center, Houston (E.J.) - both in Texas; Hospital Universitari Vall d'Hebron-Universitat Autónoma de Barcelona, Barcelona (P.B.), and Hospital Universitari i Politècnic La Fe, Valencia (M.G.) - both in Spain; Washington University School of Medicine, St. Louis (A.G.); the Sarah Cannon Transplant and Cellular Therapy Program, TriStar Centennial Medical Center, Nashville (J.M.P.); the University of Maryland Medical Center, Baltimore (J.A.Y.); Miller School of Medicine, University of Miami, Miami (A.M.B.), and Moffitt Cancer Center, Tampa (B.D.S.) - both in Florida; Winship Cancer Institute of Emory University, Atlanta (M.L.A.); Colorado Blood Cancer Institute, Denver (L.M.); the University of Rochester Medical Center, Rochester (K.M.O.), and Memorial Sloan Kettering Cancer Center, New York (J.H.P.) - both in New York; the David and Etta Jonas Center for Cellular Therapy, University of Chicago, Chicago (M.R.B.); and Dana-Farber Cancer Institute, Boston (D.J.D.).

Article Synopsis
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Planned Y-shaped Muscle Wrapping for Salvaging Aortic Graft Infection: Latissimus Dorsi and Reverse Serratus Anterior Muscles.

Plast Reconstr Surg Glob Open

November 2024

From the Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.

Aorta-related infections are life threatening. Aggressive replacement surgery using artificial aortic grafts should be performed using well-vascularized tissue wrapping to avoid reinfection. An omental flap is the first choice; however, a history of abdominal surgery necessitates other methods.

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Tuberculosis (TB) caused by is a leading infectious cause of death globally. The treatment of patients becomes much more difficult for the increasingly common multi-drug resistant TB. Topoisomerase I is essential for the viability of and has been validated as a new target for the discovery of novel treatment against TB resistant to the currently available drugs.

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Background: The blood-brain barrier (BBB) strictly regulates the penetration of substances into the brain, which, although important for maintaining brain homeostasis, may delay drug development because of the difficulties in predicting pharmacokinetics/pharmacodynamics (PKPD), toxicokinetics/toxicodynamics (TKTD), toxicity, safety, and efficacy in the central nervous system (CNS). Moreover, BBB functional proteins show species differences; therefore, humanized in vitro BBB models are urgently needed to improve the predictability of preclinical studies. Recently, international trends in the 3Rs in animal experiments and the approval of the FDA Modernization Act 2.

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Background: The Neuro-2a cell line, derived from a murine neuroblastoma (NB), was established as early as 1969 and originates from a transplantable tumor that arose spontaneously in an A/Jax male mouse in 1940. Since then, it has been applied in over 10,000 studies and is used by the World Organization for Animal Health for the routine diagnosis of rabies. Surprisingly, however, Neuro-2a has never been genetically characterized in detail; this study fills that gap.

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Fermented Rice Bran Mitigated the Syndromes of Type 2 Diabetes in KK- Mice Model.

Metabolites

November 2024

Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Japan.

Diabetes is a devastating disease that causes millions of deaths. Fermented rice bran (FRB), made by fermenting rice bran with and a mixture of lactic acid bacteria, was hypothesized to b able to improve diabetes-related symptoms. This study aimed to investigate the effects of FRB supplementation in mitigating type 2 diabetes symptoms and identifying FRB bioactive compounds.

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Slow Subcutaneous Release of Glatiramer Acetate or CD40-Targeting Peptide KGYY Is More Advantageous in Treating Ongoing Experimental Autoimmune Encephalomyelitis.

Neurol Int

November 2024

Webb-Waring Center, Department of Medicine, University of Colorado, Anschutz Medical Campus, 12850 E Montview Boulevard, Aurora, CO 80045, USA.

Article Synopsis
  • - Glatiramer Acetate (GA) is a common treatment for multiple sclerosis but requires frequent injections, and its effectiveness can vary due to inconsistent batch quality.
  • - An alternative treatment, KGYY, targets the CD40 receptor and shows improved results in an animal model compared to GA, especially when formulated as slow-release particles.
  • - Both GA and KGYY benefit from slow-release formulations, but KGYY exhibits more consistent effectiveness across different batches, making it a promising option for MS treatment.
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Article Synopsis
  • Carotid plaques may play a significant role in causing ischemic strokes, and this study evaluated their characteristics in relation to strokes that occur on either side of the affected carotid artery.
  • Researchers analyzed data from the ESCAPE-NA1 trial, focusing on patients with embolic stroke of undetermined source (ESUS) who underwent thrombectomy, and looked for "vulnerable carotid plaques" using various imaging criteria.
  • The findings revealed that vulnerable plaques, characterized by surface irregularity and significant stenosis, were significantly more common in the carotid arteries on the same side as the stroke, highlighting the importance of monitoring these plaques for better stroke risk assessment.
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Background: Deep eutectic solvents (DES) have emerged as effective solvents that address many challenges in analytical chemistry, particularly in microextraction. However, until now, their use has been primarily focused on extraction processes. This has significantly limited their application in analytical chemistry, especially in flow analysis, where the high viscosity of DES has made their use difficult.

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The compression and integration of nonlinear optical processes to the nanoscale are expected to have significant implications for quantum optics, biology, and medicine. In this work, a composite metasurface consisting of a hollow-bow-tie-shaped metal metasurface and a patterned amorphous silicon metasurface is proposed. An external terahertz (THz) electric field enhanced by the hollow-bow-tie structure is employed to break the centrosymmetry, which allows the generation of optical second harmonic.

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