3,421 results match your criteria: "National Institute of Chemical Pharmaceutical R&D-ICCF Bucharest[Affiliation]"

Scope: At present, the incidence rate of ulcerative colitis (UC) continues to increase, causing a global burden. In addition, therapeutic drugs have great side effects. According to modern pharmacology, agarwood leaves have anti-inflammatory, antibacterial, hypoglycemic, and lipid-lowering effects.

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Unveiling the Mechanism of Deprotonation and Proton Transfer of DNA Polymerase Catalysis via Single-Molecule Conductance.

Adv Sci (Weinh)

November 2024

Beijing National Laboratory for Molecular Sciences, National Biomedical Imaging Center, College of Chemistry and Molecular Engineering, Peking University, 292 Chengfu Road, Haidian District, Beijing, 100871, P. R. China.

Article Synopsis
  • DNA polymerases (Pols) are essential for genetic information transmission, and their regulation is linked to various human diseases, yet the mechanisms behind their functions are not fully understood.
  • This research introduces a method to observe the full catalytic cycle of human DNA polymerase β (hPol β) using graphene-molecule-graphene junctions, revealing the states and mechanisms involved during its activity.
  • Key findings indicate that deprotonation is the rate-limiting step in pyrophosphate (PP) formation and that certain residues and metal ions play critical roles in these chemical reactions, which may inform the development of Pol-targeting drugs and artificial DNA polymerases for synthetic biology.
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A novel carboxymethyl cellulose (CMC) graft copolymer (CMC-g-PSMAS) was successfully synthesized by grafting sodium methacrylate sulfonate (SMAS) onto CMC. The resulting CMC-g-PSMAS was used to absorb 1-allyl-3-methylimidazole chloride ([Amim]Cl) ionic liquid. The effects of different experimental factors such as monomer dosage, temperature and time on the grafting yield were systematically studied.

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Evaluation of physical and chemical modifications to drug reservoirs for stimuli-responsive microneedles.

Drug Deliv Transl Res

November 2024

School of Pharmacy, Medical Biology Centre, Queens University Belfast, 97 Lisburn Road, BT9 7BL, Belfast, United Kingdom.

Hydrogel-forming microneedle (MN) arrays are minimally-invasive devices that can penetrate the stratum corneum, the main barrier to topical drug application, without causing pain. However, drug delivery using hydrogel-forming MN arrays tends to be relatively slow compared to rapid drug delivery using conventional needles and syringes. Therefore, in this work, for the first time, different physical and chemical delivery enhancement methods were employed in combination with PVA-based hydrogel-forming MN arrays.

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Performance of a Short Version of the Everyday Cognition Scale (ECog-12) to Detect Cognitive Impairment.

J Prev Alzheimers Dis

November 2024

Rachel L. Nosheny, Ph.D., Assistant Professor, University of California, San Francisco, Department of Psychiatry, San Francisco VA Medical Center, 4150 Clement Street (114M), San Francisco, CA 94121, Tel: 650-468-0619, Fax: 415-668-2864, email:

Background: The Everyday Cognition (ECog) 12-item scale, a functional decline measurement, can distinguish dementia from cognitively unimpaired (CU). Limited data compare ECog-12 performance by raters (self vs. informant) and scoring systems (average numeric vs.

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3D Printing-Based Hydrogel Dressings for Wound Healing.

Adv Sci (Weinh)

December 2024

Institute of Burn Research, Southwest Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Third Military Medical University (Army Medical University), Chongqing, 400038, China.

Skin wounds have become an important issue that affects human health and burdens global medical care. Hydrogel materials similar to the natural extracellular matrix (ECM) are one of the best candidates for ideal wound dressings and the most feasible choices for printing inks. Distinct from hydrogels made by traditional technologies, which lack bionic and mechanical properties, 3D printing can promptly and accurately create hydrogels with complex bioactive structures and the potential to promote tissue regeneration and wound healing.

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Article Synopsis
  • Finerenone, a nonsteroidal mineralocorticoid receptor antagonist, improved outcomes for heart failure patients in the FINEARTS-HF trial but led to elevated serum potassium levels.
  • The study aimed to analyze the frequency of abnormal serum potassium levels (<3.5 mmol/L and >5.5 mmol/L) and the impact of finerenone treatment compared to placebo on patient outcomes.
  • Results showed that participants taking finerenone experienced significantly higher potassium levels over time, with increased risk of levels >5.5 mmol/L and reduced risk of levels <3.5 mmol/L, indicating a notable effect of the drug on potassium regulation.
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Discovery of 1-(Phenylsulfonyl)-1,2,3,4-tetrahydroquinoline Derivative as Orally Bioavailable and Safe RORγt Inverse Agonists for Potential Treatment of Rheumatoid Arthritis.

J Med Chem

November 2024

National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China.

The retinoic acid receptor-related orphan receptor γt (RORγt) is a key regulator of Th17 cells, associated with autoimmune diseases, making it a significant drug target. Herein, we designed and synthesized 1-(phenylsulfonyl)-1,2,3,4-tetrahydroquinoline derivatives, improving upon GSK2981278 to enhance bioavailability. Of which, exhibited superior bioavailability (F = 48.

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A Supramolecular Self-Assembled Nanoprodrug for Enhanced Ferroptosis Therapy.

ACS Nano

November 2024

Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585 Singapore.

Ferroptosis can induce cell death that leverages Fe-triggered Fenton reactions within living organisms, leading to an excessive accumulation of lipid peroxides (LPOs) and inducing cell death. Ferroptosis can effectively circumvent the inevitable drug resistance encountered with traditional apoptotic therapies. However, several issues remain in the clinical application of ferroptosis anticancer therapy, primarily due to the poor efficiency of intracellular Fenton reaction.

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GlutaR: A High-Performance Fluorescent Protein-Based Sensor for Spatiotemporal Monitoring of Glutamine Dynamics In Vivo.

Angew Chem Int Ed Engl

November 2024

State Key Laboratory of Natural and Biomimetic Drugs and Department of Chemical Biology, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.

Glutamine is the most abundant amino acid in human blood and muscle, and is integral to a wide variety of functions in cancer cells. However, the inability to monitor the subcellular distribution of glutamine in real-time has obscured understanding of glutamine metabolism under physiological and pathological conditions. Here, we report the development of a genetically encoded fluorescent sensor and demonstrate how this GlnBP-cpYFP fusion "GlutaR sensor" undergoes glutamine-induced conformational changes reflected in detectable fluorescence responses.

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The Alzheimer's Disease Neuroimaging Initiative (ADNI) Administrative Core oversees and coordinates all ADNI activities, to ensure the success and maximize the impact of ADNI in advancing Alzheimer's disease (AD) research and clinical trials. It manages finances and develops policies for data sharing, publications using ADNI data, and access to ADNI biospecimens. The Core develops and executes pilot projects to guide future ADNI activities and identifies key innovative methods for inclusion in ADNI.

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Ketamine attenuates kidney damage and depression-like behaviors in mice with cisplatin-induced acute kidney injury.

Transl Psychiatry

November 2024

Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.

Acute kidney injury (AKI) is a serious condition characterized by decreased urine output, often accompanied by psychiatric symptoms like depression. However, there are limited pharmacological treatments available for AKI and its associated depressive symptoms. In this study, we investigated whether cisplatin-induced AKI in mice leads to depression-like behaviors and whether ketamine could alleviate both the kidney injury and these behaviors.

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Accurate water content detection is crucial for optimizing chemical reactions, ensuring product quality in pharmaceutical manufacturing, and maintaining food safety. In this study, nitrogen and sulfur co-doped graphene quantum dots (R-GQDs) were synthesized via a one-step hydrothermal method using o-phenylenediamine as the carbon source. The synthesis conditions, including reaction time, temperature, o-phenylenediamine concentration, and HSO/water ratio, were optimized using the Box-Behnken response surface methodology.

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Natural rubber latex membrane (NRL) is a biocompatible macromolecule that stimulates angiogenesis and promotes bone repair. Similarly, β-tricalcium phosphate (β-TCP) is an osteoconductive and osteoinductive bioceramic widely used as a bone substitute. Here, we investigated the combined use of these biomaterials in the guided bone regeneration process for calvarial defects in rats.

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Mass spectral libraries are collections of reference spectra, usually associated with specific analytes from which the spectra were generated, that are used for further downstream analysis of new spectra. There are many different formats used for encoding spectral libraries, but none have undergone a standardization process to ensure broad applicability to many applications. As part of the Human Proteome Organization Proteomics Standards Initiative (PSI), we have developed a standardized format for encoding spectral libraries, called mzSpecLib (https://psidev.

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Article Synopsis
  • Natural killer (NK) cells are important immune cells in cancer therapy, with treatments aimed at enhancing their anti-cancer functions in the body.
  • NK cell-derived exosomes (NDEs) are safe, easily modified, and can boost the effectiveness of various cancer therapies while minimizing side effects.
  • The review discusses the potential and challenges of different NK cell therapies, the impact of tumor exosomes on NK cells, and the future role of NDEs in improving cancer immunotherapy outcomes.
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Background: In the AUGUSTUS trial (An Open-Label, 2 x 2 Factorial, Randomized Controlled, Clinical Trial to Evaluate the Safety of Apixaban vs Vitamin K Antagonist and Aspirin vs Aspirin Placebo in Patients With Atrial Fibrillation and Acute Coronary Syndrome or Percutaneous Coronary Intervention), the combination of dual antiplatelet therapy plus oral anticoagulation increased the risk of bleeding without reducing ischemic events compared with a P2Y12 inhibitor plus oral anticoagulation among patients with atrial fibrillation and acute coronary syndrome or elective percutaneous coronary intervention. However, AUGUSTUS enrolled patients up to 14 days after acute coronary syndrome or percutaneous coronary intervention, and there may be a benefit to dual antiplatelet therapy plus oral anticoagulation early after an ischemic event.

Methods: In this secondary analysis of AUGUSTUS, we divided patients into groups based on whether they were enrolled <6 days (early) or ≥6 days (later) after their index acute coronary syndrome or percutaneous coronary intervention, and tested the interaction between time from the index event to enrollment and randomized treatment (apixaban versus vitamin K antagonist and aspirin versus placebo) on 30-day and 6-month clinical outcomes using Cox proportional hazards models.

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Background: Ceratocystis fimbriata is a fungal pathogen that infects sweet potato roots, producing enormous economic losses. Cyclic polyhydroxy compound quinic acid is a common metabolite synthesized in plant tissues, including sweet potato tubers, showing weak antifungal properties. Although several O-acylated quinic acid derivatives have been synthesized and found in nature and their antifungal properties have been explored, derivatives based on modification of the carboxylic acid have never been evaluated.

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Article Synopsis
  • The study explores the prevalence of cachexia, sarcopenia, and malnutrition in older patients with heart failure (HF) using definitions from the Asian Working Group for Cachexia (AWGC) and other criteria, finding that AWGC-defined cachexia was the most common condition.
  • Among the 861 patients analyzed, cachexia was present in 74.1%, while other conditions showed lower prevalence rates.
  • The results indicated that AWGC-defined cachexia was not significantly linked to all-cause mortality in these patients, contrasting with stronger associations found for cachexia according to Evans' criteria, sarcopenia, and malnutrition.
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The CACHE challenges are a series of prospective benchmarking exercises to evaluate progress in the field of computational hit-finding. Here we report the results of the inaugural CACHE challenge in which 23 computational teams each selected up to 100 commercially available compounds that they predicted would bind to the WDR domain of the Parkinson's disease target LRRK2, a domain with no known ligand and only an apo structure in the PDB. The lack of known binding data and presumably low druggability of the target is a challenge to computational hit finding methods.

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  • A study investigated the relationship between COVID-19 vaccination and the risk of developing venous thrombosis or embolism (VTE) after infection, particularly examining the impact of booster shots.
  • The research analyzed data from Military Health System beneficiaries who tested positive for COVID-19 between 2020 and 2022, finding that vaccinated individuals had significantly lower odds of developing VTE compared to those unvaccinated.
  • Results indicated that the risk of post-COVID-19 VTE was particularly low during the Omicron variant era, and those receiving booster shots had an even greater reduction in VTE risk.
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Article Synopsis
  • - Hemorrhage is the main cause of preventable death in trauma situations, leading to military and civilian advancements in medical practices, particularly through the use of tourniquets to manage extremity bleeding and save lives.
  • - While tourniquets have significantly decreased deaths from bleeding in military settings, noncompressible hemorrhage still poses a major risk, especially before patients receive definitive medical care.
  • - The study explores using a small, disposable pressure monitor during resuscitative endovascular balloon occlusion of the aorta (REBOA) to enhance blood pressure monitoring, facilitate better resuscitation practices, and reduce the need for blood products in extreme environments.
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Ag phantom images with Cerenkov Luminescence Imaging and digital autoradiography within the ISOLPHARM project.

Appl Radiat Isot

January 2025

Legnaro National Laboratories, National Institute for Nuclear Physics, INFN-LNL, Viale dell'Università 2, 35020 Legnaro, Italy. Electronic address:

Targeted Radionuclide Therapy (TRT) is a medical technique exploiting radionuclides to combat cancer growth and spread. TRT requires a supply of radionuclides that are currently produced by either cyclotrons or nuclear research reactors. In this context, the ISOLPHARM project investigates the production of innovative radionuclides for medical applications.

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Development of an automated photolysis rates prediction system based on machine learning.

J Environ Sci (China)

May 2025

Chengdu Academy of Environmental Sciences, Chengdu 610072, China.

Based on observed meteorological elements, photolysis rates (J-values) and pollutant concentrations, an automated J-values predicting system by machine learning (J-ML) has been developed to reproduce and predict the J-values of OD, NO, HONO, HO, HCHO, and NO, which are the crucial values for the prediction of the atmospheric oxidation capacity (AOC) and secondary pollutant concentrations such as ozone (O), secondary organic aerosols (SOA). The J-ML can self-select the optimal "Model + Hyperparameters" without human interference. The evaluated results showed that the J-ML had a good performance to reproduce the J-values where most of the correlation (R) coefficients exceed 0.

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Protective effects of an mRNA vaccine candidate encoding H5HA clade 2.3.4.4b against the newly emerged dairy cattle H5N1 virus.

EBioMedicine

November 2024

Pandemic Preparedness, Infection and Advanced Research Center, the University of Tokyo (UTOPIA), Tokyo, 108-8639, Japan; Influenza Research Institute, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI, 53711, USA; Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, 108-8639, Japan; The Research Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo, 162-8655, Japan. Electronic address:

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