1,651,463 results match your criteria: "Department of Biology & Biotechnology "Lazzaro Spallanzani" University of Pavia[Affiliation]"

Photocurrent Generation by Plant Light-Harvesting Complexes is Enhanced by Lipid-Linked Chromophores in a Self-Assembled Lipid Membrane.

J Phys Chem B

January 2025

Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan.

The light-harvesting pigment-protein complex II (LHCII) from plants can be used as a component for biohybrid photovoltaic devices, acting as a photosensitizer to increase the photocurrent generated when devices are illuminated with sunlight. LHCII is effective at photon absorption in the red and blue regions of the visible spectrum, however, it has low absorption in the green region (550-650 nm). Previous studies have shown that synthetic chromophores can be used to fill this spectral gap and transfer additional energy to LHCII, but it was uncertain whether this would translate into an improved performance for photovoltaics.

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Drug Development.

Alzheimers Dement

December 2024

Eisai Inc., Nutley, NJ, USA.

Lecanemab, a humanized IgG1 monoclonal antibody that binds with high affinity to amyloid-beta (Aβ) protofibrils, was formally evaluated as a treatment for early Alzheimer's disease in a phase 2 study (Study 201) and the phase 3 Clarity AD study. These trials both included an 18-month, randomized study (core) and an open-label extension (OLE) phase where eligible participants received open-label lecanemab for up to 30 months to date. Clinical (CDR-SB, ADAS-Cog14, and ADCS-MCI-ADL), biomarker (PET, Aβ42/40 ratio, and ptau181) and safety outcomes were evaluated.

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Dementia Care Research and Psychosocial Factors.

Alzheimers Dement

December 2024

Deutsches Zentrum für Neurodegenerative Erkrankungen e. V. (DZNE) Rostock/Greifswald, Rostock, Germany.

Background: Using artificial intelligence approaches enable automated assessment and analysis of speech biomarkers for Alzheimer's disease, for example using chatbot technology. However, current chatbots often are unsuitable for people with cognitive impairment. Here, we implemented a user-centred-design approach to evaluate and improve usability of a chatbot system for automated speech assessments for people with preclinical, prodromal and early dementia.

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Median mandibular cyst is defined as an odontogenic cyst in a rare midline location. In spite of this definition, there have been two reports of a peculiar lesion, so-called "ciliated" median mandibular cyst associated with vital teeth, the origin of which cannot be explained in terms of odontogenic epithelium multipotentiality. We describe a thorough profile of an additional example.

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Background: Black Americans (BAs), Hispanics/Latinos (H/Ls), and Africans (As) face a disproportionate burden of aging and Alzheimer's Disease and Related Dementias (AD/ADRD), coupled with underrepresentation in research. Further, researchers also report a lack of compliance on sensitive social determinants of health data for AD/ADRD research. For instance, the PRAPARE tool reports a low completion rate in community and clinical settings.

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Biomimetic peptide conjugates as emerging strategies for controlled release from protein-based materials.

Drug Deliv

December 2025

Biomedical Materials and Devices for Revolutionary Integrative Systems Engineering (BMD-RISE) Research Unit, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand.

Biopolymers, such as collagens, elastin, silk fibroin, spider silk, fibrin, keratin, and resilin have gained significant interest for their potential biomedical applications due to their biocompatibility, biodegradability, and mechanical properties. This review focuses on the design and integration of biomimetic peptides into these biopolymer platforms to control the release of bioactive molecules, thereby enhancing their functionality for drug delivery, tissue engineering, and regenerative medicine. Elastin-like polypeptides (ELPs) and silk fibroin repeats, for example, demonstrate how engineered peptides can mimic natural protein domains to modulate material properties and drug release profiles.

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Reduced lipid and glucose oxidation and reduced lipid synthesis in AMPKα2 myotubes.

Arch Physiol Biochem

January 2025

Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Norway.

Adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) plays a crucial role in regulation of metabolic homeostasis. To understand the role of the catalytic α2 subunit of AMPK in skeletal muscle energy metabolism, myotube cultures were established from and mice. Myotubes from mice had lower basal oleic acid and glucose oxidation compared to myotubes from mice.

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Clinical trials are crucial to contemporary medicine, offering valuable insights into the safety, efficacy, and appropriate use of new treatments. They contribute to public health improvements, reduce healthcare costs, uncover new understandings of disease biology, and facilitate the development of therapies for rare conditions. Investing in clinical trials is therefore essential for advancing medical science and enhancing patient outcomes globally.

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ENPP-1 is a transmembrane enzyme involved in nucleotide metabolism, and its overexpression is associated with various cancers, making it a potential therapeutic target and biomarker for early tumor diagnosis. Current detection methods for ENPP-1 utilize a colorimetric probe, , which has significant limitations in sensitivity. Here, we present probe , the first nucleic acid-based chemiluminescent probe designed for rapid and highly sensitive detection of ENPP-1 activity.

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Cardiovascular Disease and Cancer: A Dangerous Liaison.

Arterioscler Thromb Vasc Biol

January 2025

Cardiovascular Research Center, New York University Langone Health, New York University Grossman School of Medicine. (A.A.C.N., J.M.D., K.J.M.).

The field of cardio-oncology has traditionally focused on the impact of cancer and its therapies on cardiovascular health. Mounting clinical and preclinical evidence, however, indicates that the reverse may also be true: cardiovascular disease can itself influence tumor growth and metastasis. Numerous epidemiological studies have reported that individuals with prevalent cardiovascular disease have an increased incidence of cancer.

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Untangling the Genetic Threads of Alzheimer's: Insights into Risk Factors and Biomarkers.

Curr Gene Ther

January 2025

Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.

Dementia is a comprehensive term that refers to illnesses characterized by a decline in cognitive memory and other cognitive functions, affecting a person's overall ability to operate. The exact causes of dementia are unknown to this day. The heterogeneity of Alzheimer's indicates the contribution of genetic polymorphism to this disease.

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Implications of Biomaterials for Chronic Wounds.

Mini Rev Med Chem

January 2025

University of Bucharest, Faculty of Biology, DAFAB Department, Splaiul Independentei 91-95, Bucharest, R-050095, Romania.

The use of biomaterials in treating and managing chronic wounds represents a significant challenge in global healthcare due to the complex nature of these wounds, which are slow to heal and can lead to complications such as frequent infections and diminished quality of life for patients. Chronic wounds, which can arise from conditions like diabetes, poor circulation, and pressure sores, pose distinct challenges in wound care, necessitating the development of specialized dressings. The pathophysiology of chronic wounds is thoroughly examined in this article, with particular attention paid to the cellular and molecular defects at work and the therapeutic guidelines.

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Relapsed childhood T-cell acute lymphoblastic leukemia and lymphoblastic lymphoma.

Haematologica

January 2025

Division of Oncology, the Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, the University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.

While outcomes for pediatric acute lymphoblastic leukemia (ALL) and lymphoblastic lymphoma (LBL) have improved dramatically in recent decades, relapsed and refractory disease remain a significant therapeutic challenge. This is particularly true for patients with T-cell ALL and LBL, where survival for patients with relapsed/refractory disease remains dismal. Recent efforts to comprehensively profile the genomics of T-ALL/LBL to improve understanding of disease biology have enhanced our ability to identify high-risk patients at diagnosis who are more likely to relapse and have also identified novel targets for precision medicines.

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Purine metabolites regulate leukemic cell sensitivity toward cytarabine.

Haematologica

January 2025

State Key Laboratory of Genetic Engineering, Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism and Integrative Biology, Shanghai Xuhui Central Hospital / Zhongshan-Xuhui Hospital, Fudan University, Shanghai.

Not available.

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Exploring vimentin's role in breast cancer via PICK1 alternative polyadenylation and the miR-615-3p-PICK1 interaction.

Biofactors

January 2025

Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Tongji University, Shanghai, People's Republic of China.

Breast cancer continues to be a major health issue for women worldwide, with vimentin (VIM) identified as a crucial factor in its progression due to its role in cell migration and the epithelial-to-mesenchymal transition (EMT). This study focuses on elucidating VIM's regulatory mechanisms on the miR-615-3p/PICK1 axis. Utilizing the 4T1 breast cancer cell model, we first used RNA-seq and proteomics to investigate the changes in the APA of PICK1 following VIM knockout (KO).

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Objective: The potential impact of cigarette and cannabis smoking on COVID-19 infection outcomes is not well understood. We investigated the association between combustible tobacco use and dried cannabis use with COVID-19 infection in a longitudinal cohort of community adults.

Method: The sample comprised 1,343 participants, originally enrolled in 2018, who reported their cigarette and cannabis use in 11 assessments over 44 months, until 2022.

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Unlabelled: Although Canada legalized cannabis beverages in 2019, most available research on acute cannabis intoxication derives from dried flower and edible products. The distinct bioavailability and pharmacokinetic properties of phytocannabinoids ingested from beverages, however, contribute to significantly different acute and long-term effects that need to be better understood to ensure consumer safety.

Objective: This review investigates existing cannabis beverage literature, with a particular focus on acute intoxication effects.

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X-linked moesin-associated immunodeficiency (X-MAID) is a recently identified combined immunodeficiency caused by a mutation in the moesin () gene. It is characterized by cytopenias, hypogammaglobulinemia, poor immune response to vaccine antigens, and increased susceptibility to early-life infections. We report a patient with adult-onset neutropenia, lymphopenia, inadequate response to the pneumococcal polysaccharide vaccine (PPSV23), and recurrent bacterial infections associated with a hemizygous deletion.

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: Live microorganisms, named probiotics, can improve overall physical well-being, particularly the oral cavity's health. , a popular probiotic, can influence the immune response by increasing the number of macrophages and plasma cells that play a role in traumatic ulcer healing. : To determine the expression of tumor necrosis factor-alpha (TNF-α) and the varied number of plasma cells and macrophages on a traumatic ulcer animal model treated with topical or systemic administration of a probiotic : Thirty-six healthy, 2-3-month-old male weighing 175-250 gram, were designed into control and topical and systemic administration probiotic groups.

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Global trends and risk factors in gastric cancer: a comprehensive analysis of the Global Burden of Disease Study 2021 and multi-omics data.

Int J Med Sci

January 2025

Medical Oncology Department of Gastrointestinal Cancer, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital & Institute, No.44 Xiaoheyan Road, Dadong District, Shenyang 110042, Liaoning Province, China.

Gastric cancer (GC) remains a significant global health challenge. This study aimed to comprehensively analyze GC epidemiology and risk factors to inform prevention and intervention strategies. We analyzed the Global Burden of Disease Study 2021 data, conducted 16 different machine learning (ML) models of NHANES data, performed Mendelian randomization (MR) studies on disease phenotypes, dietary preferences, microbiome, blood-based markers, and integrated differential gene expression and expression quantitative trait loci (eQTL) data from multiple cohorts to identify factors associated with GC risk.

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While NUSAP1's association with various tumors is established, its predictive value for prognosis and immunotherapy in lung adenocarcinoma (LUAD) remains unconfirmed. We analyzed Nucleolar Spindle-Associated Protein 1 (NUSAP1) gene expression in TCGA and GTEx datasets and validated it in clinicopathological tissues using qRT-PCR and immunohistochemistry. Additionally, we investigated NUSAP1's relationship with patient prognosis across TCGA and five GEO cohorts.

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Advances on the Role of Lung Macrophages in the Pathogenesis of Chronic Obstructive Pulmonary Disease in the Era of Single-Cell Genomics.

Int J Med Sci

January 2025

Department of Respiratory and Critical Medicine, the Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518000, Guangdong Province, China.

Chronic Obstructive Pulmonary Disease (COPD) is a heterogeneous respiratory disorder characterized by persistent airflow limitation. The diverse pathogenic mechanisms underlying COPD progression remain incompletely understood. Macrophages, serving as the most representative immune cells in the respiratory tract, constitute the first line of innate immune defense and maintain pulmonary immunological homeostasis.

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Carcinogenesis often involves significant alterations in the cancer genome, marked by large structural variants (SVs) and copy number variations (CNVs) that are difficult to capture with short-read sequencing. Traditionally, cytogenetic techniques are applied to detect such aberrations, but they are limited in resolution and do not cover features smaller than several hundred kilobases. Optical genome mapping (OGM) and nanopore sequencing [Oxford Nanopore Technologies (ONT)] bridge this resolution gap and offer enhanced performance for cytogenetic applications.

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Evaluating the accuracy of protein-coding sequences in genome annotations is a challenging problem for which there is no broadly applicable solution. In this manuscript, we introduce PSAURON (Protein Sequence Assessment Using a Reference ORF Network), a novel software tool developed to help assess the quality of protein-coding gene annotations. Utilizing a machine learning model trained on a diverse dataset from over 1000 plant and animal genomes, PSAURON assigns a score to coding DNA or protein sequence that reflects the likelihood that the sequence is a genuine protein-coding region.

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vClean: assessing virus sequence contamination in viral genomes.

NAR Genom Bioinform

March 2025

Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan.

Recent advancements in viral metagenomics and single-virus genomics have improved our ability to obtain the draft genomes of environmental viruses. However, these methods can introduce virus sequence contaminations into viral genomes when short, fragmented partial sequences are present in the assembled contigs. These contaminations can lead to incorrect analyses; however, practical detection tools are lacking.

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