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PmWRKY-10 Enhances Pine Wilt Disease Resistance by Promoting Pinosylvin Monomethyl Ether Biosynthesis Through Transcriptional Activation of PmPMT2-1.

Pine wilt disease (PWD), caused by the pine wood nematode (PWN, Bursaphelenchus xylophilus), poses a severe threat to global pine forests. Plants can enhance their resistance to external stresses by eliciting secondary metabolites; however, the transcriptional regulatory mechanisms governing this defence response in pines remain largely unexplored. Here, we report a novel defence regulatory module in Pinus massoniana. PmWRKY-10 may participate in PWN resistance by regulating the biosynthesis of the nematicidal metabolite pinosylvin monomethyl ether (PME). We first demonstrated that PME accumul

Reactivation of P53 Antiproliferative and Pro-Apoptotic Pathways by Resveratrol in Mutant P53 Cancer Cell Lines.

Cancer is the second leading cause of death worldwide. Mutations in the TP53 gene lead to a loss of tumor suppressor function and an oncogenic gain of function for the protein, resulting in a more invasive, metastatic, and chemoresistant phenotype. Diverse structural studies have demonstrated that mutant p53 core domain unfolding is not irreversible. Thus, reactivation toward its wild-type-like conformation or inactivation of its mutant p53 capacities may restore the expression of genes in its tumor suppressor pathways, resulting in enhanced responses to current therapies. Resveratrol (3,4',5-

Synthetically accessible naphthalene-based rigid-core electrolytes as membrane-active antibacterial agents against drug-resistant pathogens.

The growing threat of antimicrobial resistance (AMR) underscores the need for antibacterial scaffolds that act through mechanisms distinct from those of conventional antibiotics. Conjugated oligoelectrolytes (COEs) are membrane-active antimicrobials, although stilbene-containing representatives can present scaffold-specific challenges associated with alkene stability and synthetic accessibility. Here, we report a naphthalene-based rigid-core electrolyte (RCE) platform that removes the phenylene-vinylene linker while retaining potent antibacterial activity. The RCEs were accessed through a two-

Нейрозащитный и терапевтический потенциал ресвератрола для травм спинного мозга: систематический обзор.

Травматические травмы спинного мозга являются частыми повреждениями CNS, которые происходят в таких обстоятельствах, как падение или несчастные случаи. Травматические травмы спинного мозга чаще встречаются в более старшей возрастной группе и у мужчин, причем высокая заболеваемость и распространенность этого заболевания объясняются отсутствием эффективного фармакологического или нейрохирургического лечения. Травматический СКИ может быть отнесен к категории первичных или вторичных травм, которые в конечном счете могут привести к смерти или физической зависимости. Resveratrol - это экстракт из по

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… Structure of resveratol Resveratrol (3,5,4′-Trihydroxystilbene) is a natural polyphenol belonging to the family of stilbenes. … The interplay between autophagy and apoptosis in the mechanisms of action of stilbenes in cancer cells. Antioxidants Basel. 2025;14(3):339. 10.3390/antiox14030339. 54. Singh N, Agrawal M, Doré S. …

Polydatin mitigates thrombosis by inhibiting PHD2-induced proline hydroxylation on collagen, reducing platelet adhesion.

BACKGROUND: Platelet adhesion to collagen, a critical initial step in thrombus formation, remains an underexplored therapeutic target in thrombosis. Current disease treatment strategies primarily focus on platelet activation and aggregation, often overlooking the crucial initial adhesion phase. Reynoutria japonica (Huzhang, HZ), utilized in traditional Chinese medicine to enhance blood circulation and resolve blood stasis, lacks comprehensive insights into its active components and their anti-thrombotic mechanisms. PURPOSE: This study investigated the antithrombotic effects and mechanisms of

In silico Discovery of Resveratrol Analogues as Potential Agents in Treatment of Metabolic Disorders.

BACKGROUND: Resveratrol was demonstrated to act as partial agonist of PPAR-γ receptor, which opens up the possibility for its use in the treatment of metabolic disorders. Considering the poor bioavailability of resveratrol, particularly due to its low aqueous solubility, we aimed to identify analogues of resveratrol with improved pharmacokinetic properties and higher binding affinities towards PPAR-γ. METHODS: 3D structures of resveratrol and its analogues were retrieved from ZINC database, while PPAR-γ structure was obtained from Protein Data Bank. Docking studies were performed using Molegr

Resveratrol Decreases Oxidative Stress by Restoring Mitophagy and Improves the Pathophysiology of Dystrophin-Deficient mdx Mice.

We previously showed that treatment with resveratrol (3,5,4'-trihydroxy-trans-stilbene), an activator of the NAD+-dependent deacetylase SIRT1 at 4 g/kg food for 32 weeks, significantly decreased the muscular reactive oxygen species (ROS) levels and ameliorated the pathology of mdx mice, an animal model of Duchenne muscular dystrophy (DMD). Here, we treated mdx mice with various doses of resveratrol (0.04, 0.4, and 4 g/kg food) for 56 weeks and examined the effects on serum creatine kinase levels and physical activities. Because resveratrol promotes autophagy, we also investigated whether autop

Moraceae Plants with Tyrosinase Inhibitory Activity: A Review.

Hyperpigmentation is an abnormal darkening of the skin mostly derived from excessive melanin production. It is typical of skin disorders including melasma associated to pregnancy or age, freckles, sun freckles and photoaging, age spots, and actinic keratosis. These conditions can be uncomfortable for aesthetic reasons and specific depigmenting treatment is frequently requested. Tyrosinase (EC 1.14.18.1) is the rate-limiting enzyme of melanin synthesis and the main target of antihyperpigmentation remedies. Much interest is focused on compounds able to inhibit tyrosinase activity, particularly n

Antidepressant effects of resveratrol in an animal model of depression.

Resveratrol (3,4',5-trihydroxy-trans-stilbene) is a natural non-flavonoid polyphenol antioxidant extracted from red grapes in the processing of wine. Initially it was studied for its potential as anticancer drug, and later was found to reduce cardiovascular disease. More recently resveratrol was shown to alleviate depressive-like symptoms induced by stress or other means in mice and rats. The major purpose of this study was to investigate whether resveratrol would manifest an antidepressant effect in Wistar-Kyoto (WKY) rats, a putative and non-induced animal model of depression, and whether th

trans-(-)-ε-Viniferin increases mitochondrial sirtuin 3 (SIRT3), activates AMP-activated protein kinase (AMPK), and protects cells in models of Huntington Disease.

Huntington disease (HD) is an inherited neurodegenerative disorder caused by an abnormal polyglutamine expansion in the protein Huntingtin (Htt). Currently, no cure is available for HD. The mechanisms by which mutant Htt causes neuronal dysfunction and degeneration remain to be fully elucidated. Nevertheless, mitochondrial dysfunction has been suggested as a key event mediating mutant Htt-induced neurotoxicity because neurons are energy-demanding and particularly susceptible to energy deficits and oxidative stress. SIRT3, a member of sirtuin family, is localized to mitochondria and has been im

Loss of Slc4a1b chloride/bicarbonate exchanger function protects mechanosensory hair cells from aminoglycoside damage in the zebrafish mutant persephone.

Mechanosensory hair cell death is a leading cause of hearing and balance disorders in the human population. Hair cells are remarkably sensitive to environmental insults such as excessive noise and exposure to some otherwise therapeutic drugs. However, individual responses to damaging agents can vary, in part due to genetic differences. We previously carried out a forward genetic screen using the zebrafish lateral line system to identify mutations that alter the response of larval hair cells to the antibiotic neomycin, one of a class of aminoglycoside compounds that cause hair cell death in hum

Effects of carbon monoxide on ion transport across rat distal colon.

The aim of the present study was to investigate whether carbon monoxide (CO) induces changes in ion transport across the distal colon of rats and to study the mechanisms involved. In Ussing chamber experiments, tricarbonyldichlororuthenium(II) dimer (CORM-2), a CO donor, evoked a concentration-dependent increase in short-circuit current (I(sc)). A maximal response was achieved at a concentration of 2.5·10(-4) mol/l. Repeated application of CORM-2 resulted in a pronounced desensitization of the tissue. Anion substitution experiments suggest that a secretion of Cl(-) and HCO(3)(-) underlie the C

Airway surface liquid pH in well-differentiated airway epithelial cell cultures and mouse trachea.

Airway surface liquid (ASL) pH has been proposed to be important in the pathophysiology of cystic fibrosis, asthma, and cough. Ratio image analysis was used to measure pH in the ASL after staining with the fluorescent pH indicator 2',7'-bis(2-carboxyethyl)-5(6)-carboxyfluorescein (BCECF)-dextran. ASL pH in bovine airway cell cultures grown at an air-liquid interface was 6.98 +/- 0.06 in the absence and 6.81 +/- 0.04 in the presence of HCO/CO(2). Steady-state ASL pH changed in parallel to changes in bath pH and was acidified by Na(+) or Cl(-) replacement but was not affected by the inhibitors a

Deformation of swollen erythrocytes provides a model of sickling-induced leak pathways, including a novel bromide-sensitive component.

Deoxygenation-induced red blood cell (RBC) sickling probably activates multiple cation leak pathways. In an attempt to model this, we examined the net passive K efflux ("K leak") from normal and sickle RBCs undergoing elliptical deformation in hypotonic media (200 mOsmol/L). This hypotonic deformation activates two deformation-dependent K leak pathways that are not detectable during the balanced leak (Kefflux = Nainflux) resulting from deformation of RBCs in isotonic medium. These are (1) a calcium-dependent leak component and (2) a novel leak pathway that is inhibited by substitution of bromi

Does low intracellular pH stop the motion of the Bulla circadian pacemaker?

The eye of the mollusk Bulla has proven itself useful as an in vitro neural circadian pacemaker. Here, we report that treatments applied to lower intracellular pH may stop the motion of this circadian pacemaker in a phase-dependent manner. Lowering the extracellular pH of the artificial seawater bath to 6.9, or application of the stilbene derivatives 4-acetamido-4'-isothiocyanostilbene-2,2'-disulfonic acid (SITS) or 4,4-di-isothiocyanostilbene-2,2'-disulfonic acid (DIDS), abolishes the circadian rhythm in optic nerve compound action-potential frequency. Because these treatments are known to lo

Na-H exchange in rat liver basolateral but not canalicular plasma membrane vesicles.

Na+-stimulated H+ movement and H+-stimulated Na+ uptake were studied in basolateral (blLPM) and canalicular (cLPM) rat liver membrane vesicles. H+ movement was monitored with the fluorescent amine acridine orange; 22Na uptake was assayed by a rapid Millipore filtration technique. In blLPM, inwardly directed Na+ gradients stimulated H+ efflux and outwardly directed Na+ gradients stimulated proton influx. Outwardly directed proton gradients (pH in 5.9/pH out 7.9) stimulated initial 22Na uptake rates 5- to 10-fold over pH-equilibrated conditions (pH in 7.9/pH out 7.9). Conversely, inwardly direct

Network toxicology screening of plastic-associated chemicals reveals candidates with structural mimicry to Alzheimer's disease-relevant molecules and predicted neurotoxicity.

Alzheimer's disease (AD) pathogenesis involves environmental factors, with plastic-associated chemicals emerging as potential neurotoxicants. This study employed a computational toxicology framework to screen plastic-associated chemicals for potential interference with AD-related pathways. From a compiled library of 12,751 plastic-associated chemicals, 2,315 compounds with high blood-brain barrier (BBB) permeability were identified. Using Morgan fingerprints and Tanimoto similarity (threshold ≥ 0.6), we pinpointed chemicals structurally analogous to known AD-active molecules, including 3,5-Dim

Dual-Loaded Quercetin-Resveratrol Niosomes: Sustained In Vitro Release and Retained Bioactivity in Hummus During Simulated Gastrointestinal Digestion.

Quercetin (QUE) and resveratrol (RES) have complementary bioactivities but limited aqueous solubility and oral bioavailability. This study developed dual-loaded quercetin-resveratrol niosomes (QR-NIOs) for incorporation into hummus and screened quercetin:resveratrol molar ratios using antioxidant, erythroprotective, and enzyme-inhibition assays. The 50:50 formulation showed the broadest activity profile and produced vesicles with 90.63 ± 3.63% overall encapsulation efficiency, 149 ± 13 nm diameter, 0.21 ± 0.02 polydispersity index, and -34 ± 2 mV ζ-potential. After 24 h, dialysis passage was 5

Impact of storage conditions on the stability and biological efficacy of trans-arachidin-1 and trans-arachidin-3.

Prenylated stilbenoids, particularly trans-arachidin-1 (Ara-1) and trans-arachidin-3 (Ara-3), have gained attention for their notable bioactivities and potential health-promoting properties. This study presents the first comprehensive investigation into the stability and biological efficacy of these compounds in both peanut hairy root culture crude extracts (PCE) and partially purified fractions derived from elicited peanut hairy root cultures. PCE stored at -20 °C and 4 °C maintained higher antioxidant capacity, total phenolic content compared to samples stored at room temperature. In cytotox

Plasma concentrations following oral administration of two different forms of resveratrol in horses.

Resveratrol is a compound found in multiple plants and there is evidence for its use as a supplement in horses, particularly through protection of chondrocytes. Previous studies on the clinical efficacy of resveratrol supplementation in horses have reported limited benefits. To date, there is no pharmacokinetic data of resveratrol in horses but the bioavailability of resveratrol in other species is poor. In this crossover study, the plasma concentrations of two forms of resveratrol were examined. Each horse received via nasogastric tube, either a single dose of resveratrol phospholipid or a st