Palmitic Acid Esterification Boosts Epigallocatechin Gallate's Immunomodulatory Effects in Intestinal Inflammation.

Lipophenols, combining phenolic and lipid moieties in a single molecule, are valuable candidates for providing enhanced bioactive properties with therapeutic potential, including anti-inflammatory functions associated with immune-mediated diseases such as intestinal bowel disease (IBD). Thus, palmitoyl-epigallocatechin gallate (PEGCG), a lipophilic derivative of epigallocatechin gallate (EGCG), has been highlighted for its enhanced stability in lipid-rich environments and bioavailability due to improved cellular uptake. However, the contribution of lipophilic esterification to PEGCG's capacity to inhibit inflammation and the development of harmful autoimmune responses remains underexplored.

Palmitoyl-Epigallocatechin Gallate Modulates COX-2-Based Production of Inflammation-Related Oxylipins: Synthesis, Characterization, and Bioevaluation In Vitro and In Silico.

Lipophenols are esterifications of (poly)-phenols with fatty acids, recently demonstrated to exhibit enhanced bioactivities compared to native phenolics. Among them, catechin lipophenols have been noted as powerful antioxidants present in natural products (e.g.

Safety evaluation of d-α-tocopheryl polyethylene glycol-1000 succinate (Vitamin E TPGS) as a food additive.

The EFSA Panel on Food Additives and Flavourings (FAF) provides a scientific opinion on the safety of d-α-tocopheryl polyethylene glycol-1000 succinate (Vitamin E TPGS) as a new food additive to be used in several food categories as emulsifier. In 2007, the EFSA AFC Panel assessed TPGS as a source of tocopherol intended to be used in foods for particular nutritional uses. The Panel considered the AFC Panel assessment relevant for the present new food additive.

Evidence of Time-Dependent Hepatic Cytotoxicity and Mitochondrial Remodelling Induced by Palmitoyl Epigallocatechin Gallate vs. Its Native (Poly)Phenol.

Lipophenols, combining phenolic and lipid characteristics in an amphiphilic molecule, offer unique bioactive properties with therapeutic potential, including anti-inflammatory and anti-oxidant effects. Thus, palmitoyl-epigallocatechin gallate (PEGCG), a lipophilic derivative of the extensively studied (poly)phenol epigallocatechin gallate (EGCG), has been stressed concerning enhanced stability in lipid-rich environments and bioavailability due to improved cellular uptake. Nonetheless, the effect of lipophilic esterification on some cellular processes, particularly at the mitochondrial level, remains underexplored.

Re-evaluation of pullulan (E 1204) as a food additive and new application for its extension of use.

The present opinion deals with the re-evaluation of pullulan (E 1204) when used as a food additive and with the new application on the extension of use to several food categories. Pullulan (E 1204) is obtained by fermentation of a food-grade hydrolysed starch with non-genetically modified ■■■■■. Based on the available information, the Panel considered that the manufacturing process of pullulan (E 1204) using this microorganism does not raise a safety concern.

Grape stems as sources of tryptophan and selenium: Functional properties and antioxidant potential.

The Douro Demarcated Region's winery industry produces million tonnes of by-products annually, making their reuse essential to minimize environmental impact. Grape stems, rich in bioactive compounds and nutrients, have demonstrated potential health benefits. This study analysed four red grape stems from the Douro region to assess their nutritional value and potential health benefit.

Valorisation of Winery By-Products: Revealing the Polyphenolic Profile of Grape Stems and Their Inhibitory Effects on Skin Aging-Enzymes for Cosmetic and Pharmaceutical Applications.

Grape ( L.) stems, a by-product of winemaking, possess significant potential value due to their rich polyphenolic composition, which allows their exploitation for cosmetic and pharmaceutical applications. This presents a promising opportunity for valorisation aimed at developing innovative products with potential health-promoting effects.

Bioaccessible Phenolic Alkyl Esters of Wine Lees Decrease COX-2-Catalyzed Lipid Mediators of Oxidative Stress and Inflammation in a Time-Dependent Manner.

Lipophenols, phenolic compounds esterified with fatty alcohols or fatty acids, provide greater health benefits upon dietary ingestion of plant-based foods than unesterified (poly)phenols. Based on this premise, the present study aimed to demonstrate the role of gastrointestinal enzymes (pepsin, pancreatin, and pancreatic lipase) in releasing alkyl gallates and -caffeates from wine lees, providing bioactive compounds with enhanced capacities against oxidative stress (OS) and para-inflammation. The UHPLC-ESI-QqQ-MS/MS-based analysis revealed ethyl gallate and ethyl -caffeate as the most prominent compounds (1.

Characterization of NR1J1 Paralog Responses of Marine Mussels: Insights from Toxins and Natural Activators.

The pregnane X receptor (PXR) is a nuclear hormone receptor that plays a pivotal role in regulating gene expression in response to various ligands, particularly xenobiotics. In this context, the aim of this study was to shed light on the ligand affinity and functions of four NR1J1 paralogs identified in the marine mussel , employing a dual-luciferase reporter assay. To achieve this, the activation patterns of these paralogs in response to various toxins, including freshwater cyanotoxins (Anatoxin-a, Cylindrospermopsin, and Microcystin-LR, -RR, and -YR) and marine algal toxins (Nodularin, Saxitoxin, and Tetrodotoxin), alongside natural compounds (Saint John's Wort, Ursolic Acid, and 8-Methoxypsoralene) and microalgal extracts (, LEGE 95046, and LEGE 91351 extracts), were studied.

Identification of in vitro metabolites of an Allium organosulfur compound and environmental toxicity prediction as part of its risk assessment.

Propyl-propane-thiosulfonate (PTSO) is an organosulfur compound found inAllium spp. Due to its antioxidant and antimicrobial activities, PTSO has been proposed for applications in the agri-food sector, such as feed additive. However, its use with commercial purposes depends on its toxicity evaluation.

Oral administration of tipranavir with long-chain triglyceride results in moderate intestinal lymph targeting but no efficient delivery to HIV-1 reservoir in mesenteric lymph nodes.

The introduction of combination antiretroviral therapy (cART) led to substantial improvement in mortality and morbidity of HIV-1 infection. However, the poor penetration of antiretroviral agents to HIV-1 reservoirs limit the ability of the antiretroviral agents to eliminate the virus. Mesenteric lymph nodes (MLNs) are one of the main HIV-1 reservoirs in patients under suppressive cART.

Toxicological Evaluation of Piceatannol, Pterostilbene, and ε-Viniferin for Their Potential Use in the Food Industry: A Review.

The application of stilbenes in the food industry is being considered because of their biological activities. Piceatannol, pterostilbene and ε-viniferin have awakened the industry's interest. However, before they can be commercialized, we must first guarantee their safety for consumers.

In Vivo Genotoxicity Evaluation of a Stilbene Extract Prior to Its Use as a Natural Additive: A Combination of the Micronucleus Test and the Comet Assay.

Genotoxic data of substances that could be used as food additives are required by the European Food Safety Authority. In this sense, the use of an extract from grapevine shoots containing a stilbene richness of 99% (ST-99), due to its antioxidant and antibacterial activities, has been proposed as an alternative to sulfur dioxide in wine. The aim of this work was to study, for the first time, the in vivo genotoxic effects produced in rats orally exposed to 90, 180, or 360 mg ST-99/kg body weight at 0, 24, and 45 h.

Cytotoxicity studies of a stilbene extract and its main components intended to be used as preservative in the wine industry.

The use of stilbenes has been proposed as an alternative to sulfur dioxide in wine. Provided the feasibility from a technological approach, the cytotoxicity of an extract from grapevine shoots containing a stilbene richness of 99% (ST-99 extract) was assessed in the human cell lines HepG2 and Caco-2. In addition, the effects of the main stilbenes found in ST-99, trans-resveratrol and trans-ε-viniferin were studied, as well as its mixture.

Targeted delivery of lopinavir to HIV reservoirs in the mesenteric lymphatic system by lipophilic ester prodrug approach.

The combined antiretroviral therapy (cART) can efficiently suppress HIV replication, but the cessation of cART usually results in viral rebound, mostly due to the presence of viral reservoirs. The mesenteric lymphatic system, including mesenteric lymph nodes (MLNs), is an important viral reservoir into which antiretroviral drugs poorly penetrate. In this work, we proposed a novel lipophilic ester prodrug approach, combined with oral lipid-based formulation, to efficiently deliver lopinavir (LPV) to the mesenteric lymph and MLNs.

Cylindrospermopsin-Microcystin-LR Combinations May Induce Genotoxic and Histopathological Damage in Rats.

Cylindrospermopsin (CYN) and microcystins (MC) are cyanotoxins that can occur simultaneously in contaminated water and food. CYN/MC-LR mixtures previously investigated in vitro showed an induction of micronucleus (MN) formation only in the presence of the metabolic fraction S9. When this is the case, the European Food Safety Authority recommends a follow up to in vivo testing.

In Vitro Toxicity Assessment of Stilbene Extract for Its Potential Use as Antioxidant in the Wine Industry.

The reduction of sulfur dioxide in wine is a consumer's demand, considering the allergic effects that may occur in people who are sensitive to it. Stilbenes are candidates of great interest for this purpose because of their antioxidant/antimicrobial activities and health properties, and also because they are naturally found in the grapevine. In the present study, the in vitro toxicity of an extract from grapevine shoots (with a stilbene richness of 45.