Institut de Biomedicina (IBUB): Recent submissions
Now showing items 221-240 of 331
Escape from adamantane: scaffold optimization of novel P2X7 antagonists featuring complex polycycles
The adamantane scaffold, despite being widely used in medicinal chemistry, is not devoid of problems. In recent years we have developed new polycyclic scaffolds as surrogates of the adamantane group with encouraging results ...
Iron hydride radical reductive alkylation of unactivated alkenes
Iron-catalyzed hydrogen atom transfer-mediated intermolecular C−C coupling reactions between alkenes and tosylhydrazones, followed by in situ cleavage of the tosylhydrazine intermediates using Et3N, are described. The ...
Effect of the solvent on the chromatographic selectivity in reversed-phase and HILIC
In this work, the characterization of several reversed-phase and HILIC chromatographic systems is presented by means of the Abraham's solvation parameter model, focusing on the impact of solute polarizability, dipolarity, ...
Decreased brain serotonin in rbfox1 mutant zebrafish and partial reversion of behavioural alterations by the SSRI fluoxetine
RBFOX1 functions as a master regulator of thousands of genes, exerting a pleiotropic effect on numerous neurodevelopmental and psychiatric disorders. A potential mechanism by which RBFOX1 may impact these disorders is ...
Synthesis of (±)-Serralongamine A and the Revised Structure of Huperzine N
A revised structure for the Lycopodium alkaloid huperzine N is proposed and confirmed by synthesis. The key synthetic steps involve an epimerization of a cis-5-oxodecahydroquinoline to the corresponding trans isomer and a ...
Liver CPT1A gene therapy reduces diet-induced hepatic steatosis in mice and highlights potential lipid biomarkers for human NAFLD
The prevalence of nonalcoholic fatty liver disease (NAFLD) has increased drastically due to the global obesity pandemic but at present there are no approved therapies. Here, we aimed to revert high-fat diet (HFD)-induced ...
Optimized asymmetric synthesis of umuravumbolide
Herein, the asymmetric synthesis of umuravumbolide (1) is described. The new approach features highly stereoselective transformations (dr ≥ 95:5) to install both stereocenters and the Z olefin, which involve a new radical ...
A Nanoencapsulated Ir(III)-Phthalocyanine Conjugate as a Promising Photodynamic Therapy Anticancer Agent
Despite the potential of photodynamic therapy (PDT) in cancer treatment, the development of efficient and photostable photosensitizing molecules that operate at long wavelengths of light has become a major hurdle. Here, ...
Prevalent sequences in the Human Genome Can Form Mini i-Motif Structures at Physiological pH
We report here the solution structure of several repetitive DNA sequences containing d(TCGTTCCGT) and related repeats. At physiological pH, these sequences fold into i-motif like quadruplexes in which every two repeats a ...
11β-HSD1 Inhibition Rescues SAMP8 Cognitive Impairment Induced by Metabolic Stress
Ageing and obesity have been shown to increase the risk of cognitive decline and Alzheimer's disease (AD). Besides, elevated glucocorticoid (GCs) levels cause metabolic stress and have been associated with the neurodegenerative ...
Functional and pharmacological role of the dopamine D4 receptor and its polymorphic variants
The functional and pharmacological significance of the dopamine D4 receptor (D4R) has remained the least well understood of all the dopamine receptor subtypes. Even more enigmatic has been the role of the very prevalent ...
Improving Photodynamic Therapy Anticancer Activity of a Mitochondria-Targeted Coumarin Photosensitizer Using a Polyurethane−Polyurea Hybrid Nanocarrier
Integration of photosensitizers (PSs) within nanoscale delivery systems offers great potential for overcoming some of the 'Achiles' heels' of photodynamic therapy (PDT). Herein, we have encapsulated a mitochondria-targeted ...
SIRT3 deficiency exacerbates fatty liver by attenuating the HIF1α-LIPIN 1 pathway and increasing CD36 through Nrf2
Background: Deficiency of mitochondrial sirtuin 3 (SIRT3), a NAD+ -dependent protein deacetylase that maintains redox status and lipid homeostasis, contributes to hepatic steatosis. In this study, we investigated additional ...
Risk and protective factors for anxiety and obsessive-compulsive disorders: an umbrella review of systematic reviews and meta-analyses
A multitude of risk/protective factors for anxiety and obsessive-compulsive disorders have been proposed. We conducted an umbrella review to summarize the evidence of the associations between risk/protective factors and ...
Mitofusin-2 induced by exercise modifies lipid droplet-mitochondria communication, promoting fatty acid oxidation in male mice with NAFLD
Background and aim: The excessive accumulation of lipid droplets (LDs) is a defining characteristic of nonalcoholic fatty liver disease (NAFLD). The interaction between LDs and mitochondria is functionally important for ...
Planarian Cell Number Depends on blitzschnell, a Novel Gene Family That Balances Cell Proliferation and Cell Death
Control of cell number is crucial to define body size during animal development and to restrict tumoral transformation. The cell number is determined by the balance between cell proliferation and cell death. Although many ...
Hepatic regulation of VLDL receptor by PPARbeta/delta and FGF21 modulates non-alcoholic fatty liver disease
OBJECTIVE: The very low-density lipoprotein receptor (VLDLR) plays an important role in the development of hepatic steatosis. In this study, we investigated the role of Peroxisome Proliferator-Activated Receptor (PPAR)beta/delta ...
p13CMFA: Parsimonious 13C metabolic flux analysis
Deciphering the mechanisms of regulation of metabolic networks subjected to perturbations, including disease states and drug-induced stress, relies on tracing metabolic fluxes. One of the most informative data to predict ...
Fructose induces synthesis and reduces oxidation of liver fatty acids through ChREBP activation
Introduction and aims. During last few decades, the prevalence of obesity, metabolic syndrome and insulin resistance, among other metabolic disturbances, has raised considerably in many countries worldwide. Environmental ...
Interaction of the N-(3-Methylpyridin-2-yl)amide Derivatives of Flurbiprofen and Ibuprofen with FAAH: Enantiomeric Selectivity and Binding Mode
Background Combined fatty acid amide hydrolase (FAAH) and cyclooxygenase (COX) inhibition is a promising approach for pain-relief. The Flu-AM1 and Ibu-AM5 derivatives of flurbiprofen and ibuprofen retain similar COX-inhibitory ...
