272,205 results match your criteria: "Toxicology & Clinical Psychopharmacology[Affiliation]"

Evaluation of neutralizing antibody titers against SARS-CoV-2 JN.1 omicron subvariant during pregnancy - A case series study.

Heliyon

January 2025

Clinical Pharmacology and Toxicology Research Unit, Namur Research Institute for Life Sciences, University of Namur, 5000, Namur, Belgium.

Background: SARS-CoV-2 infection during pregnancy poses health risks to both mother and fetus. This study investigates neutralizing antibodies (NAbs) against the SARS-CoV-2 JN.1 Omicron subvariant in pregnant women, focusing on responses to natural infection, vaccination, and passive immunity.

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Measuring whole-brain distributed functional activity is an important unmet need in neuroscience, requiring high temporal resolution and cellular specificity across large volumes. Functional optoacoustic neuro-tomography (FONT) with genetically encoded calcium ion indicators is a promising approach towards this goal. However, it has not yet been applied in the near-infrared (NIR) range that provides deep penetration and low vascular background optimal for neuroimaging.

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Although the pathophysiology of pain has been investigated tremendously, there are still many open questions with regard to specific pain entities and their pain-related symptoms. To increase the translational impact of (preclinical) animal neuroimaging pain studies, the use of disease-specific pain models, as well as relevant stimulus modalities, are critical. We developed a comprehensive framework for brain network analysis combining functional magnetic resonance imaging (MRI) with graph-theory (GT) and data classification by linear discriminant analysis.

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poisoning in two horses: A case report.

Vet Med (Praha)

November 2024

Equine Clinic, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, Brno, Czech Republic.

This case report describes the poisoning of two mares from the same paddock with (Black locust) bark. The poisoning manifested itself by the sudden onset of weakness and fever with transient improvement after the administration of non-steroidal anti-inflammatory drugs and fluids. After the initial stabilisation, the mares were left unattended overnight.

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() is an opportunistic intracellular pathogen that causes listeriosis in human and leads to high mortality rate. is resistant to various antibiotics due to its ability to form biofilm. Designing a new generation of antibiotics is a very expensive and time-consuming process.

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Introduction: Masking is a reporting bias where drug safety signals are muffled by elevated reporting of other medications in spontaneous reporting databases. While the impact of masking is often limited, its effect when using restricted designs, such as active comparators, can be consequential.

Methods: We used data from the US Food and Drugs Administration Adverse Event Reporting System (1999Q3-2013Q3) to study masking in a real-world example.

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Exon location of glycine substitutions impacts kidney survival in autosomal dominant Alport Syndrome.

Nephrol Dial Transplant

January 2025

Department of Nephrology, Kidney Transplantation and Dialysis, CHU Lille, University of Lille, Lille, France.

Background And Hypothesis: Unlike X-linked or autosomal recessive Alport Syndrome, no clear genotype/phenotype correlation has yet been demonstrated in patients carrying a single variant of COL4A3 or COL4A4.

Methods: We carried out a multicenter retrospective study to assess the risk factors involved in renal survival in patients presenting a single pathogenic variant on COL4A3 or COL4A4.

Results: 97 patients presenting a single pathogenic variant of COL4A3 or COL4A4 were included.

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Background: Piperine, a secondary metabolite, affects the antihyperlipidemic effect of Ezetimibe (EZ). Hyperlipidemia is one of the independent risk factors for cardiovascular disorders such as atherosclerosis. Antihyperlipidemic drugs are essential for reducing cardiovascular events and patient mortality.

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Deciphering key nano-bio interface descriptors to predict nanoparticle-induced lung fibrosis.

Part Fibre Toxicol

January 2025

State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Suzhou Medical School, Soochow University, Suzhou, Jiangsu, 215123, China.

Background: The advancement of nanotechnology underscores the imperative need for establishing in silico predictive models to assess safety, particularly in the context of chronic respiratory afflictions such as lung fibrosis, a pathogenic transformation that is irreversible. While the compilation of predictive descriptors is pivotal for in silico model development, key features specifically tailored for predicting lung fibrosis remain elusive. This study aimed to uncover the essential predictive descriptors governing nanoparticle-induced pulmonary fibrosis.

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Recent evidence links gut microbiota alterations to neurodegenerative disorders, including Parkinson's disease (PD). Replenishing the abnormal composition of gut microbiota through gut microbiota-based interventions "prebiotics, probiotics, synbiotics, postbiotics, and fecal microbiota transplantation (FMT)" has shown beneficial effects in PD. These interventions increase gut metabolites like short-chain fatty acids (SCFAs) and glucagon-like peptide-1 (GLP-1), which may protect dopaminergic neurons via the gut-brain axis.

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Rationale: One of the most debilitating drawbacks of cisplatin chemotherapy is neurotoxicity which elicits memory impairment and cognitive dysfunction (chemobrain). This is primarily triggered by oxidative stress and inflammation. Captopril, an angiotensin-converting enzyme inhibitor, has been reported as a neuroprotective agent owing to its antioxidant and anti-inflammatory effects.

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Testicular germ cell tumour (TGCT) is a malignancy with known inherited risk factors, affecting young men. We have previously identified several hundred differentially abundant circulating RNAs in pre-diagnostic serum from TGCT cases compared to healthy controls. In this study, we performed Weighted Gene Co-expression Network Analysis (WGCNA) on mRNA and miRNA data from these samples.

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Childhood obesity poses a significant public health challenge, yet the molecular intricacies underlying its pathobiology remain elusive. Leveraging extensive multi-omics profiling (methylome, miRNome, transcriptome, proteins and metabolites) and a rich phenotypic characterization across two parts of Europe within the population-based Human Early Life Exposome project, we unravel the molecular landscape of childhood obesity and associated metabolic dysfunction. Our integrative analysis uncovers three clusters of children defined by specific multi-omics profiles, one of which characterized not only by higher adiposity but also by a high degree of metabolic complications.

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Background: Neurological dysfunction is a common complication of traumatic brain injury (TBI), and early treatments are critical for the long-term prognosis. This study aimed to investigate whether hypidone hydrochloride (YL-0919) improves neurological function impairment in mice with TBI.

Methods: TBI was induced in adult male C57BL/6J mice using the controlled cortical impact (CCI) method.

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Protein abundance of drug transporters and drug-metabolizing enzymes in paired healthy and tumor tissue from colorectal cancer patients.

Int J Pharm

January 2025

Drug Delivery and Disposition, KU Leuven, Gasthuisberg ON2, Herestraat 49 - box 921, 3000 Leuven, Belgium. Electronic address:

The widespread prevalence of colorectal cancer and its high mortality rate emphasize the urgent need for more effective therapies. When developing new drug products, a key aspect is ensuring that sufficiently high concentrations of the active drug are reached at the site of action. Drug transporters and drug-metabolizing enzymes can significantly influence the absorption and local accumulation of drugs in intestinal tissue.

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Health Impacts of PM Emissions from Brake Pad Wear: A Comprehensive Study on Pulmonary, Metabolic, and Microbiota Alterations.

Toxicology

January 2025

National Human Diseases Animal Model Resource Center, National Center of Technology Innovation for animal model, State Key Laboratory of Respiratory Health and Multimorbidity, NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Reemerging Infectious Diseases, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, Institute of Laboratory Animal Science, CAMS & PUMC, Beijing, China. Electronic address:

The environmental impact of harmful particles from tire and brake systems is a growing concern. This study investigated the health impacts of PM emissions from brake pad wear on adult C57BL/6 mice. The mice were exposed to brake pad particles via intratracheal infusion, and various health parameters were assessed.

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Bisphenol A Exacerbates Colorectal Cancer Progression through Enhancing Ceramide Synthesis.

Toxicology

January 2025

Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei 230032, Anhui, PR China. Electronic address:

Bisphenol A (BPA) is a typical environmental endocrine disruptor which have been broadly confirmed to be associated with malignant tumors, including colorectal cancer (CRC). Lipid metabolism reprogramming performed important biological effects in cancer progression. While the role of lipid metabolism in CRC progression upon BPA exposure remain elusive.

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Background: COVID-19 is a disease that had a great impact in the world, generating lifestyle changes; among these are changes in sleep quality, with the elderly being one of the most affected age groups. Objective: To identify sleep alterations in Mexican people older than 60 years post COVID-19 pandemic. Methods: We performed a descriptive study on subjects older than 60 years from the aging cohort of the National Institute of Respiratory Diseases.

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Unveiling the interplay between soluble guanylate cyclase activation and redox signalling in stroke pathophysiology and treatment.

Biomed Pharmacother

January 2025

Department of Neurology and Center for Translational Neuro, and Behavioural Sciences (C-TNBS), Department of Neurology, University Hospital Essen, Essen 45147, Germany; Department of Pharmacology & Personalised Medicine, MeHNS, Faculty of Health, Medicine & Life Science, Maastricht University, Maastricht, ER 6229, the Netherlands. Electronic address:

Soluble guanylate cyclase (sGC) stands as a pivotal regulatory element in intracellular signalling pathways, mediating the formation of cyclic guanosine monophosphate (cGMP) and impacting diverse physiological processes across tissues. Increased formation of reactive oxygen species (ROS) is widely recognized to modulate cGMP signalling. Indeed, oxidatively damaged, and therefore inactive sGC, contributes to poor vascular reactivity and more severe neurological damage upon stroke.

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Neuroprotective role of mirabegron: Targeting beta-3 adrenergic receptors to alleviate ulcerative colitis-associated cognitive impairment.

Biomed Pharmacother

January 2025

Pharmacology, Toxicology and Biochemistry Department, Faculty of Pharmacy, Future University in Egypt (FUE), Cairo, Egypt; Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.

While cognitive impairment has been documented in ulcerative colitic patients, the possible influence of central β3-adrenergic receptor (β3-AR) signaling on this extraintestinal manifestation remains unclear. Previously, we identified an imperative role for mirabegron (MA) as an agonist of β3-AR, in decreasing the BACE-1/beta-amyloid (Aβ) cue in the colons of UC rats. Consequently, we investigated its therapeutic potential for alleviating cognitive impairment associated with UC.

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Qualitative confirmation of 30 phencyclidine analogs in human blood and urine using GC-HRMS and a self-built library search.

J Chromatogr B Analyt Technol Biomed Life Sci

January 2025

Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Academy of Forensic Science, Shanghai 200063 China. Electronic address:

Introduction: Phencyclidine, a dissociative anesthetic with hallucinogenic effects, is commonly abused as a recreational drug. Phencyclidine analogs are compounds produced by substitutions of the phenyl and piperidine rings of phencyclidine. Illegal use of phencyclidine and its analogs has symptoms such as addiction, confusion, and increased tendencies toward violence.

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Widely used second-generation anticoagulant rodenticides like brodifacoum are classified as persistent, bioaccumulative, and toxic. Widespread exposure of terrestrial and avian non-target species is well-known and recently hepatic anticoagulant rodenticide residues have been detected in wild fish. However, no sufficient data exist to interpret the effects of these findings on fish health.

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Design and Synthesis of Topoisomerases-Histone Deacetylase Dual Targeted Quinoline-Bridged Hydroxamates as Anticancer Agents.

J Med Chem

January 2025

Laboratory for Drug Design and Synthesis, Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda 151 401, India.

The multifactorial nature of cancer requires treatment that involves simultaneous targeting of associated overexpressed proteins and cell signaling pathways, possibly leading to synergistic effects. Herein, we present a systematic study that involves the simultaneous inhibition of human topoisomerases (hTopos) and histone deacetylases (HDACs) by multitargeted quinoline-bridged hydroxamic acid derivatives. These compounds were rationally designed considering pharmacophoric features and catalytic sites of the cross-talk proteins, synthesized, and assessed for their anticancer potential.

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