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1.
Molecules ; 27(3)2022 Jan 21.
Artículo en Inglés | MEDLINE | ID: mdl-35163958

RESUMEN

In the present study, the phytochemical composition and bioactivities of A. maroccanus (AM) and A. radiatus (AR), two ecotypes collected in the Demnate road and Essaouira regions, respectively, were studied to highlight a pharmacological interest and to enable possible pharmaceutical development. To this end, methanolic and ethyl acetate extracts were prepared for each ecotype by fractionation; next, their phytochemical composition was evaluated by spectrophotometric and chromatographic analysis. Moreover, in line with the available evidence for Anacyclus spp. and their traditional use, a screening of bioactivities, including antioxidant, hypoglycemic, antiglycative, chelating, and antibacterial activities, was performed. The extracts were characterized by high amounts of polyphenols, tannins, and flavonoids, especially in the methanolic extracts; these samples were also enriched in carotenoids despite a lower chlorophyll content. Chlorogenic acid and rutin were the major identified compounds. The extracts also showed interesting hypoglycemic, antiglycative, and antibacterial properties, although with differences in efficacy and potency. Present results provide more scientific basis to the ethnopharmacological uses of Anacyclus spp. and suggest a further interest in AM and AR ecotypes as natural sources of bioactive compounds and/or phytocomplexes for possible pharmaceutical and nutraceutical developments.


Asunto(s)
Asteraceae/genética , Asteraceae/metabolismo , Fitoquímicos/análisis , Antibacterianos/farmacología , Antioxidantes/química , Asteraceae/efectos de los fármacos , Flavonoides/análisis , Pruebas de Sensibilidad Microbiana , Marruecos , Componentes Aéreos de las Plantas/química , Extractos Vegetales/química , Polifenoles/química , Taninos
2.
Eat Weight Disord ; 27(8): 3037-3051, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36369593

RESUMEN

BACKGROUND: Front-of-Pack Nutritional Labels are considered a useful tool to help consumers orient themselves in their food choices and direct their behavior toward a healthier diet. FOPNL development and use are part of a framework that includes cognitive, biological, hedonic and cultural aspects, able to affect consumers' eating and purchasing behavior. AIM: Given the complexity of the matter, the aim of this narrative review is to analyze the combination of different factors that drive food choices and eating behaviors and to highlight some aspects that are not fully studied. METHODS: The authors conducted the research using a top-down approach at first, followed by a bottom-up approach; starting with general considerations about the purchasing process, gradually narrowing the discussion to a specific sub-population, and finally extending the discussion back to more general reasonings about the direction to adopt in future, or at least to evaluate, for effective communication. RESULTS: Biases and attitudes toward food products were found to regularly interfere with buying behavior patterns, making it impossible to standardize an average consumer. This reflects in current research, increasing the complexity of the topic. All determinants influencing food choices are often assessed individually rather than in a synergistic and multidimensional context, while the purchasing scenario is characterized by multiple stimuli to which the consumer is subjected. FOPNLs' impact on perceived healthiness has been studied in different conditions, but some population subgroups have not been sufficiently represented. In particular, the effect of FOPNLs on consumers suffering from eating disorders is understudied and needs further attention. Furthermore, some approaches can be compared to "negative nutrition" or "loss-framed communication", putting nutrients out of context, emphasizing losses more than gains and risking promoting negative feelings in consumers. CONCLUSION: Due to the heterogeneity of studies, evidence on what works best in driving people to adopt lasting lifestyle changes is still mixed. Science communicators and policymakers should consider the possibility that a multi-component approach incorporating nutrition information and education may be a key strategy to promote consumers' self-consciousness and to support them in their cognitive efforts toward a healthy and sustainable diet. LEVEL OF EVIDENCE: Level V, narrative review.


Asunto(s)
Conducta de Elección , Dieta , Humanos , Valor Nutritivo , Preferencias Alimentarias/psicología , Estado Nutricional
3.
Regul Toxicol Pharmacol ; 121: 104872, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33485926

RESUMEN

Monoclonal antibodies (mAbs) and mAb derivatives have become mainstay pharmaceutical modalites. A critical assessment is to ascertain the specificity of these molecules prior to human clinical trials. The primary technique for determining specificity has been the immunohistochemistry (IHC)-based "Tissue Cross-Reactivity" (TCR) assay, where the candidate molecule is applied to > 30 tissues to look for unexpected staining. In the last few years, however, non-IHC array-based platforms have emerged that allow for screening 75-80% of the human membrane proteome, indicating a viable alternative and/or addition to the IHC methods. The preclinical sciences subcommittee of the Biotechnology Innovation Organization (BIO), "BioSafe", conducted a survey of 26 BIO member companies to understand current sponsor experience with the IHC and array techniques. In the last ten years, respondents noted they have conducted more than 650 IHC TCR assays, largely on full length mAbs, with varying impacts on programs. Protein/cell arrays have been utilized by almost half of the companies and sponsors are gaining familiarity and comfort with the platform. Initial experience with recent versions of these arrays has been largely positive. While most sponsors are not prepared to eliminate the IHC TCR assay, growing experience with these alternatives allows them to confidently choose other approaches with or without TCR assays.


Asunto(s)
Anticuerpos Monoclonales , Reacciones Cruzadas , Evaluación Preclínica de Medicamentos/métodos , Animales , Biotecnología , Industria Farmacéutica , Humanos , Inmunohistoquímica , Encuestas y Cuestionarios
4.
Molecules ; 26(17)2021 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-34500850

RESUMEN

The metabolite profile of fresh Goji berries from two cultivars, namely Big Lifeberry (BL) and Sweet Lifeberry (SL), grown in the Lazio region (Central Italy) and harvested at two different periods, August and October, corresponding at the beginning and the end of the maturation, was characterized by means of nuclear magnetic resonance (NMR) and electrospray ionization Fourier transform ion cyclotron resonance (ESI FT-ICR MS) methodologies. Several classes of compounds such as sugars, amino acids, organic acids, fatty acids, polyphenols, and terpenes were identified and quantified in hydroalcoholic and organic Bligh-Dyer extracts. Sweet Lifeberry extracts were characterized by a higher content of sucrose with respect to the Big Lifeberry ones and high levels of amino acids (glycine, betaine, proline) were observed in SL berries harvested in October. Spectrophotometric analysis of chlorophylls and total carotenoids was also carried out, showing a decrease of carotenoids during the time. These results can be useful not only to valorize local products but also to suggest the best harvesting period to obtain a product with a chemical composition suitable for specific industrial use. Finally, preliminary studies regarding both the chemical characterization of Goji leaves generally considered a waste product, and the biological activity of Big Lifeberry berries extracts was also investigated. Goji leaves showed a chemical profile rich in healthy compounds (polyphenols, flavonoids, etc.) confirming their promising use in the supplements/nutraceutical/cosmetic field. MG63 cells treated with Big Lifeberry berries extracts showed a decrease of iNOS, COX-2, IL-6, and IL-8 expression indicating their significant biological activity.


Asunto(s)
Antioxidantes/química , Lycium/química , Extractos Vegetales/química , Carotenoides/química , Ácidos Grasos/química , Frutas , Humanos , Espectroscopía de Resonancia Magnética , Espectrometría de Masas , Metabolómica , Polifenoles/química
5.
Molecules ; 26(10)2021 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-34068911

RESUMEN

The chemical profile of the female inflorescence extracts from seven Cannabis sativa L. dioecious cultivars (Carmagnola, Fibranova, Eletta Campana, Antal, Tiborszallasi, Kompolti, and Tisza) was monitored at three harvesting stages (4, 14, and 30 September), reaching from the beginning of flowering to end of flowering/beginning of seed formation, using untargeted nuclear magnetic resonance (NMR) and targeted (ultra-high-performance liquid chromatography (UHPLC) and spectrophotometry) analyses. The tetrahydrocannabinol content was always below the legal limits (<0.6%) in all the analyzed samples. The NMR metabolite profile (sugars, organic acids, amino acids, and minor compounds) subjected to principal components analysis (PCA) showed a strong variability according to the harvesting stages: samples harvested in stage I were characterized by a high content of sucrose and myo-inositol, whereas the ones harvested in stage II showed high levels of succinic acid, alanine, valine, isoleucine, phenylalanine, and threonine. Samples harvested in stage III were characterized by high levels of glucose, fructose, choline, trigonelline, malic acid, formic acid, and some amino acids. The ratio between chlorophylls and carotenoids content indicated that all plants grew up exposed to the sun, the Eletta Campana cultivar having the highest pigment amount. Tiborszallasi cultivar showed the highest polyphenol content. The highest antioxidant activity was generally observed in stage II. All these results suggested that the Cannabis sativa L. inflorescences of each analyzed dioecious hemp cultivar presented a peculiar chemical profile affected by the harvesting stage. This information could be useful for producers and industries to harvest inflorescences in the appropriate stage to obtain samples with a peculiar chemical profile suitable for proper applications.


Asunto(s)
Cannabis/crecimiento & desarrollo , Inflorescencia/crecimiento & desarrollo , Antioxidantes/análisis , Cannabinoides/análisis , Italia , Espectroscopía de Resonancia Magnética , Metabolómica , Fenoles/análisis , Fitoquímicos/análisis , Pigmentos Biológicos/análisis , Extractos Vegetales/química , Análisis de Componente Principal
6.
Molecules ; 25(9)2020 Apr 26.
Artículo en Inglés | MEDLINE | ID: mdl-32357533

RESUMEN

Fully ripe fruits and mature leaves of Elaeagnus angustifolia were harvested and analyzed by means of analytical and biological tests to better comprehend the chemical composition and therapeutic/nutraceutical potential of this plant. Fruits and leaves were dried and the obtained powders were analyzed to study their color character and (via headspace gas chromatography) describe the chemical profile. Subsequently, they were submitted to a chloroform-methanol extraction, to a hydroalcoholic extraction procedure assisted or not by microwaves, and to an extraction with supercritical CO2, assisted or not by ethanol as the co-solvent, to detect the polyphenolic and the volatile content. The resulting extracts were evaluated in terms of chlorophyll and carotenoid content, polyphenolic content, volatile fraction, total phenolic content, total flavonoid content, antioxidant activity, radical scavenging activity, and enzymatic inhibition activity. The results confirmed the correlation between the chemical composition and the high antioxidant potential of leaf extracts compared to the fruit extracts in terms of the phenolic and pigment content. A promising effect against tyrosinase emerged for all the extracts, suggesting a therapeutic/nutraceutical use for this plant. Conversely, the volatile content from both natural matrices was similar.


Asunto(s)
Antioxidantes/análisis , Carotenoides/análisis , Elaeagnaceae/química , Flavonoides/análisis , Frutas/química , Extractos Vegetales/análisis , Hojas de la Planta/química , Polifenoles/análisis , Antioxidantes/química , Carotenoides/química , Cloroformo/química , Clorofila/análisis , Cromatografía de Gases , Cromatografía Líquida de Alta Presión , Color , Flavonoides/química , Espectroscopía de Resonancia Magnética , Espectrometría de Masas , Metanol/química , Microondas , Monofenol Monooxigenasa/antagonistas & inhibidores , Fenoles/análisis , Fenoles/química , Extractos Vegetales/química , Polifenoles/química , Polvos , Solventes/química
7.
Molecules ; 25(8)2020 Apr 20.
Artículo en Inglés | MEDLINE | ID: mdl-32326129

RESUMEN

The chemical composition of the inflorescences from four Cannabis sativa L. monoecious cultivars (Ferimon, Uso-31, Felina 32 and Fedora 17), recently introduced in the Lazio Region, was monitored over the season from June to September giving indications on their sensorial, pharmaceutical/nutraceutical proprieties. Both untargeted (NMR) and targeted (GC/MS, UHPLC, HPLC-PDA/FD and spectrophotometry) analyses were carried out to identify and quantify compounds of different classes (sugars, organic acids, amino acids, cannabinoids, terpenoids, phenols, tannins, flavonoids and biogenic amines). All cultivars in each harvesting period showed a THC content below the Italian legal limit, although in general THC content increased over the season. Citric acid, malic acid and glucose showed the highest content in the late flowering period, whereas the content of proline drastically decreased after June in all cultivars. Neophytadiene, nerolidol and chlorogenic acid were quantified only in Felina 32 cultivar, characterized also by a very high content of flavonoids, whereas alloaromadendrene and trans-cinnamic acid were detected only in Uso-31 cultivar. Naringenin and naringin were present only in Fedora 17 and Ferimon cultivars, respectively. Moreover, Ferimon had the highest concentration of biogenic amines, especially in July and August. Cadaverine was present in all cultivars but only in September. These results suggest that the chemical composition of Cannabis sativa L. inflorescences depends on the cultivar and on the harvesting period. Producers can use this information as a guide to obtain inflorescences with peculiar chemical characteristics according to the specific use.


Asunto(s)
Cannabis/química , Cannabis/crecimiento & desarrollo , Inflorescencia/química , Cannabinoides/química , Cromatografía Líquida de Alta Presión , Flavonoides/química , Flores/química , Cromatografía de Gases y Espectrometría de Masas , Italia , Espectroscopía de Resonancia Magnética , Estructura Molecular , Desarrollo de la Planta
8.
J Am Coll Nutr ; 37(7): 589-597, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29652575

RESUMEN

OBJECTIVE: The aim of the present study was to investigate how different extravirgin olive oils (EVOOs), obtained by blending Olea europea cultivars, could influence the cell growth, the response to inflammatory stimuli, and oxidative stress in a culture of the osteosarcoma cell line Saos-2. METHODS: Three different extravirgin olive oils were physicochemically characterized, determining the free acidity, the oxidation status, the polyphenols content, and the antioxidative activity. Moreover, the effects on Saos-2 cell culture were determined, studying the mRNA expression level by real-time polymerase chain reaction (PCR) assays and the antioxidative activity using fluorescent probes. RESULTS: The cultivars used in the south of Italy, yield extravirgin oils with different amount of fatty acids and polyphenols, which counteract induction of proinflammatory cytokines and regulate free radical production in hydrogen peroxide-stimulated cells. In vitro analysis using the human osteoblast cell line Saos-2 showed that the addition of oils to cell culture simulated a hypoxic stress followed by a reoxygenation period, during which the antioxidant activity of extravirgin olive oils protected cells from oxidative damages. On the other hand, the mRNA expression levels of factors involved in inflammatory processes, cell growth recovery, and antioxidant response, as heme oxygenase-1, were differently stimulated by EVOOs. Moreover, peroxisome proliferator activated receptor γ (PPARγ) was differently modulated by EVOOs. CONCLUSION: These findings show that the blending of different extravirgin olive oil can impact an osteoblast cell line, in particular regarding cell growth recovery and oxidative stress.


Asunto(s)
Supervivencia Celular/efectos de los fármacos , Frutas/química , Olea/química , Aceite de Oliva/farmacología , Osteoblastos/efectos de los fármacos , PPAR gamma/metabolismo , Línea Celular , Regulación de la Expresión Génica/efectos de los fármacos , Humanos , Aceite de Oliva/química , Osteoblastos/fisiología , Estrés Oxidativo/efectos de los fármacos , PPAR gamma/genética , Especies Reactivas de Oxígeno
9.
Molecules ; 23(2)2018 Feb 20.
Artículo en Inglés | MEDLINE | ID: mdl-29461498

RESUMEN

This study was performed to evaluate the metabolite recovery from different extraction methods applied to Thymusalgeriensis aerial parts. A high-performance liquid chromatographic method using photodiode array detector with gradient elution has been developed and validated for the simultaneous estimation of different phenolic compounds in the extracts and in their corresponding purified fractions. The experimental results show that microwave-assisted aqueous extraction for 15 min at 100 °C gave the most phenolics-enriched extract, reducing extraction time without degradation effects on bioactives. Sixteen compounds were identified in this extract, 11 phenolic compounds and five flavonoids, all known for their biological activities. Color analysis and determination of chlorophylls and carotenoids implemented the knowledge of the chemical profile of this plant.


Asunto(s)
Carotenoides/química , Fenoles/química , Fitoquímicos/química , Thymus (Planta)/química , Carotenoides/aislamiento & purificación , Flavonoides/química , Flavonoides/aislamiento & purificación , Fenoles/aislamiento & purificación , Fitoquímicos/aislamiento & purificación , Componentes Aéreos de las Plantas/química , Extractos Vegetales/química
10.
Molecules ; 23(8)2018 Aug 06.
Artículo en Inglés | MEDLINE | ID: mdl-30082629

RESUMEN

A method using high-performance liquid chromatography coupled with a photodiode array detector was proposed for the rapid characterization of different phenolic constituents from the extracts of Atriplex mollis aerial parts. Atriplex species are known for their multiple biological activities, but no information is available in the literature about A. mollis. With the aim to firstly characterize the main secondary metabolites of this plant, so as to orient better the biological evaluation, we applied three different extraction procedures and compared the chromatographic results. Microwave-assisted extraction gave the best yield and recovery of important compounds such as gallic acid, catechin, chlorogenic acid, p-OH benzoic acid, rutin, sinapinic acid, t-ferulic acid, naringenin and benzoic acid. These constituents belong to three important chemical classes: phenolic acids, flavonoids and monoterpenes. Color evaluation and analysis of chlorophylls (a and b) and carotenoids complete the preliminary profile of this plant. From these analyses, Atriplex mollis is a source of bioactive compounds (especially rutin, t-ferulic acid and gallic acid) and could be recommended as a plant of phyto-pharmaceutical relevance, opening new perspectives on this salt-tolerant plant.


Asunto(s)
Atriplex/química , Componentes Aéreos de las Plantas/química , Carotenoides/química , Cromatografía Líquida de Alta Presión/métodos , Flavonoides/química , Hidroxibenzoatos/química , Monoterpenos/química
11.
Regul Toxicol Pharmacol ; 88: 125-137, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28624430

RESUMEN

With the emergence of novel biotherapeutic formats and immunostimulatory biotherapeutics in cancer immunotherapy, an understanding of immune-complex (IC) mediated hypersensitivity reactions in toxicology studies - and their differentiation from pharmacology - remains key to the preclinical evaluation of these drugs. In this review we provide an in-depth evaluation and comparison of case examples where IC-mediated hypersensitivity reactions were observed in cynomolgus monkeys. We provide details of the parameters evaluated in each study to substantiate and guide the interpretation of these findings. Five study cases (1 therapeutic protein, 4 monoclonal antibodies) are discussed for which effects ranged from minor to fatal. Common characteristics are the high incidence of clinical signs, detectable antidrug antibodies, and accelerated drug clearance up to virtual loss of exposure. In our experience, measurement of cytokine levels in vivo and detection of complement (split products) were supportive markers in situations where coagulopathy was suspected to play a role in the observed effects. Recommendations are outlined to prepare for root-cause analysis of suspected hypersensitivity reactions. Overall, a thorough analysis of the findings has helped to start clinical trials despite major findings. The hypersensitivity reactions with our human(ized) immunoglobulins have not proven to be predictive for humans.


Asunto(s)
Complejo Antígeno-Anticuerpo/inmunología , Terapia Biológica/efectos adversos , Hipersensibilidad/inmunología , Inmunoglobulina G/inmunología , Inmunoterapia/efectos adversos , Animales , Anticuerpos Monoclonales/inmunología , Citocinas/sangre , Humanos , Inmunoglobulina G/administración & dosificación , Macaca fascicularis
12.
Molecules ; 20(3): 4088-108, 2015 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-25749679

RESUMEN

In this review, fundamental aspects of the untargeted NMR-based methodology applied to fruit characterization are described. The strategy to perform the structure elucidation of fruit metabolites is discussed with some examples of spectral assignments by 2D experiments. Primary ubiquitous metabolites as well as secondary species-specific metabolites, identified in different fruits using an untargeted 1H-NMR approach, are summarized in a comprehensive way. Crucial aspects regarding the quantitative elaboration of spectral data are also discussed. The usefulness of the NMR-based metabolic profiling was highlighted using some results regarding quality, adulteration, varieties and geographical origin of fruits and fruit-derived products such as juices.


Asunto(s)
Frutas/metabolismo , Espectroscopía de Resonancia Magnética/métodos , Metaboloma
13.
Int J Food Sci Nutr ; 65(8): 1008-12, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25088933

RESUMEN

The Mediterranean diet (MD) has been proposed as a healthy dietary pattern for disease prevention. However, little information exists on the cost and on the environmental impact of such a dietary model. We compared the environmental impact and the costs of the current food consumption pattern of the Italian population and the Mediterranean model in order to investigate its overall sustainability. The environmental impact was calculated on the basis of three indexes, i.e. Carbon, Ecological and Water Footprint. The costs (Euro) per person of the MD and of the current Italian household food expenditure were considered on a weekly basis according to the 2013 data from the Observatory prices and tariffs of the Ministry of Economic Development and the service SMS consumers of the Ministry of Agriculture, Food and Forestry. The MD resulted to produce a lower environmental impact than the current food consumption of the Italian population. The monthly expenditure of the MD is slightly higher in the overall budget compared to the current expenditure allocated to food by the Italian population, but there is a substantial difference in the distribution of budget according to the different food groups.


Asunto(s)
Agricultura , Conservación de los Recursos Naturales , Costos y Análisis de Costo , Dieta Mediterránea , Abastecimiento de Alimentos , Agricultura/economía , Dieta Mediterránea/economía , Abastecimiento de Alimentos/economía , Humanos
14.
Front Immunol ; 14: 1034032, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36845124

RESUMEN

Advancing novel immunotherapy strategies requires refined tools in preclinical research to thoroughly assess drug targets, biodistribution, safety, and efficacy. Light sheet fluorescence microscopy (LSFM) offers unprecedented fast volumetric ex vivo imaging of large tissue samples in high resolution. Yet, to date laborious and unstandardized tissue processing procedures have limited throughput and broader applications in immunological research. Therefore, we developed a simple and harmonized protocol for processing, clearing and imaging of all mouse organs and even entire mouse bodies. Applying this Rapid Optical Clearing Kit for Enhanced Tissue Scanning (ROCKETS) in combination with LSFM allowed us to comprehensively study the in vivo biodistribution of an antibody targeting Epithelial Cell Adhesion Molecule (EpCAM) in 3D. Quantitative high-resolution scans of whole organs did not only reveal known EpCAM expression patterns but, importantly, uncovered several new EpCAM-binding sites. We identified gustatory papillae of the tongue, choroid plexi in the brain and duodenal papillae as previously unanticipated locations of high EpCAM expression. Subsequently, we confirmed high EpCAM expression also in human tongue and duodenal specimens. Choroid plexi and duodenal papillae may be considered as particularly sensitive sites due to their importance for liquor production or as critical junctions draining bile and digestive pancreatic enzymes into the small bowel, respectively. These newly gained insights appear highly relevant for clinical translation of EpCAM-addressing immunotherapies. Thus, ROCKETS in combination with LSFM may help to set new standards for preclinical evaluation of immunotherapeutic strategies. In conclusion, we propose ROCKETS as an ideal platform for a broader application of LSFM in immunological research optimally suited for quantitative co-localization studies of immunotherapeutic drugs and defined cell populations in the microanatomical context of organs or even whole mice.


Asunto(s)
Descubrimiento de Drogas , Proteínas Tirosina Quinasas Receptoras , Animales , Humanos , Ratones , Molécula de Adhesión Celular Epitelial , Distribución Tisular , Microscopía Fluorescente/métodos , Fosforilación
15.
Nutrients ; 15(3)2023 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-36771347

RESUMEN

The definition of metabolic syndrome (MetS) has undergone several changes over the years due to the difficulty in establishing universal criteria for it. Underlying the disorders related to MetS is almost invariably a pro-inflammatory state related to altered glucose metabolism, which could lead to elevated cardiovascular risk. Indeed, the complications closely related to MetS are cardiovascular diseases (CVDs) and type 2 diabetes (T2D). It has been observed that the predisposition to metabolic syndrome is modulated by complex interactions between human microbiota, genetic factors, and diet. This review provides a summary of the last decade of literature related to three principal aspects of MetS: (i) the syndrome's definition and classification, pathophysiology, and treatment approaches; (ii) prediction and diagnosis underlying the biomarkers identified by means of advanced methodologies (NMR, LC/GC-MS, and LC, LC-MS); and (iii) the role of foods and food components in prevention and/or treatment of MetS, demonstrating a possible role of specific foods intake in the development of MetS.


Asunto(s)
Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Síndrome Metabólico , Humanos , Síndrome Metabólico/prevención & control , Síndrome Metabólico/complicaciones , Diabetes Mellitus Tipo 2/prevención & control , Diabetes Mellitus Tipo 2/complicaciones , Dieta , Alimentos , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/prevención & control , Factores de Riesgo
16.
Nutrition ; 102: 111770, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35816811

RESUMEN

Nutrition labels advise consumers about the nutritional value of packaged foods and their contribution to the overall composition of the diet. They have been proposed as an instrument for the promotion of healthy diets and as a fundamental tool in the prevention of obesity and diet-related non-communicable diseases (NCDs). The aim of this review is to discuss the effectiveness of front-of-pack nutrition labels (FOPNLs) in improving health status, the concern about focusing on single nutrients/foods rather than on eating patterns to prevent obesity and NCDs, and the strength of positive rather than negative messages to promote a healthy and sustainable diet. Although nutrition science investigates individual foods or nutrients, when communicating to the public most of the significant evidence of the favorable health effect largely depends on dietary patterns and not on a single food component or individual nutrient. Therefore, we suggest that a new tool based on positive communication should be developed and implemented to highlight the importance of the diet as a complex matrix.


Asunto(s)
Etiquetado de Alimentos , Enfermedades no Transmisibles , Comportamiento del Consumidor , Dieta Saludable , Humanos , Enfermedades no Transmisibles/prevención & control , Estado Nutricional , Valor Nutritivo , Obesidad/prevención & control
17.
Nutrients ; 14(3)2022 Jan 23.
Artículo en Inglés | MEDLINE | ID: mdl-35276849

RESUMEN

Inflammasomes are key intracellular multimeric proteins able to initiate the cellular inflammatory signaling pathway. NLRP3 inflammasome represents one of the main protein complexes involved in the development of inflammatory events, and its activity has been largely demonstrated to be connected with inflammatory or autoinflammatory disorders, including diabetes, gouty arthritis, liver fibrosis, Alzheimer's disease, respiratory syndromes, atherosclerosis, and cancer initiation. In recent years, it has been demonstrated how dietary intake and nutritional status represent important environmental elements that can modulate metabolic inflammation, since food matrices are an important source of several bioactive compounds. In this review, an updated status of knowledge regarding food bioactive compounds as NLRP3 inflammasome modulators is discussed. Several chemical classes, namely polyphenols, organosulfurs, terpenes, fatty acids, proteins, amino acids, saponins, sterols, polysaccharides, carotenoids, vitamins, and probiotics, have been shown to possess NLRP3 inflammasome-modulating activity through in vitro and in vivo assays, mainly demonstrating an anti-NLRP3 inflammasome activity. Plant foods are particularly rich in important bioactive compounds, each of them can have different effects on the pathway of inflammatory response, confirming the importance of the nutritional pattern (food model) as a whole rather than any single nutrient or functional compound.


Asunto(s)
Aterosclerosis , Inflamasomas , Animales , Suplementos Dietéticos , Humanos , Inflamasomas/metabolismo , Inflamación/metabolismo , Proteína con Dominio Pirina 3 de la Familia NLR/metabolismo
18.
Oncoimmunology ; 11(1): 2039432, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35186442

RESUMEN

T cell engagers represent a novel promising class of cancer-immunotherapies redirecting T cells to tumor cells and have some promising outcomes in the clinic. These molecules can be associated with a mode-of-action related risk of cytokine release syndrome (CRS) in patients. CRS is characterized by the rapid release of pro-inflammatory cytokines such as TNF-α, IFN-γ, IL-6 and IL-1ß and immune cell activation eliciting clinical symptoms of fever, hypoxia and hypotension. In this work, we investigated the biological mechanisms triggering and amplifying cytokine release after treatment with T cell bispecific antibodies (TCBs) employing an in vitro co-culture assay of human PBMCs or total leukocytes (PBMCs + neutrophils) and corresponding target antigen-expressing cells with four different TCBs. We identified T cells as the triggers of the TCB-mediated cytokine cascade and monocytes and neutrophils as downstream amplifier cells. Furthermore, we assessed the chronology of events by neutralization of T-cell derived cytokines. For the first time, we demonstrate the contribution of neutrophils to TCB-mediated cytokine release and confirm these findings by single-cell RNA sequencing of human whole blood incubated with a B-cell depleting TCB. This work could contribute to the construction of mechanistic models of cytokine release and definition of more specific molecular and cellular biomarkers of CRS in the context of treatment with T-cell engagers. In addition, it provides insight for the elaboration of prophylactic mitigation strategies that can reduce the occurrence of CRS and increase the therapeutic index of TCBs.


Asunto(s)
Anticuerpos Biespecíficos , Citocinas , Síndrome de Liberación de Citoquinas , Humanos , Neutrófilos , Linfocitos T
19.
Commun Biol ; 5(1): 52, 2022 01 13.
Artículo en Inglés | MEDLINE | ID: mdl-35027657

RESUMEN

Disorders of the eye leading to visual impairment are a major issue that affects millions of people. On the other side ocular toxicities were described for e.g. molecularly targeted therapies in oncology and may hamper their development. Current ocular model systems feature a number of limitations affecting human-relevance and availability. To find new options for pharmacological treatment and assess mechanisms of toxicity, hence, novel complex model systems that are human-relevant and readily available are urgently required. Here, we report the development of a human immunocompetent Choroid-on-Chip (CoC), a human cell-based in vitro model of the choroid layer of the eye integrating melanocytes and microvascular endothelial cells, covered by a layer of retinal pigmented epithelial cells. Immunocompetence is achieved by perfusion of peripheral immune cells. We demonstrate controlled immune cell recruitment into the stromal compartments through a vascular monolayer and in vivo-like cytokine release profiles. To investigate applicability for both efficacy testing of immunosuppressive compounds as well as safety profiling of immunoactivating antibodies, we exposed the CoCs to cyclosporine and tested CD3 bispecific antibodies.


Asunto(s)
Productos Biológicos/farmacología , Coroides/efectos de los fármacos , Células Endoteliales/efectos de los fármacos , Procedimientos Analíticos en Microchip , Anticuerpos Biespecíficos/efectos de los fármacos , Anticuerpos Biespecíficos/metabolismo , Humanos , Melanocitos/efectos de los fármacos , Melanocitos/metabolismo
20.
Foods ; 11(22)2022 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-36429250

RESUMEN

In this study, the effect of several agronomical practices on the chemical composition of hemp inflorescences, a potential novel food that needs to be further studied, was observed. Here, the case study of inflorescences from Ferimon cultivars is discussed and submitted to different agronomical practices (irrigation and fertilizers) in different years, and the inflorescences harvested in different periods were analyzed by a multimethodological approach. Targeted and untargeted methodologies allowed cannabinoids, total phenolic content, metabolite profile and antioxidant activity to be determined. The biomass and inflorescence yields were also reported. The whole data set was submitted to ANOVA-simultaneous component analysis. The statistic results allowed us to observe that irrigation was responsible for the (-)-Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD) increment. THC, cannabichromene (CBC), cannabigerol (CBG), succinate, and fructose resulted as higher in full female flowering than in the period of seed maturity. On the other hand, nitrogen supplementation led to an increase of iso-leucine, valine, and threonine. The obtained results underlined both the potential food application of hemp inflorescences, due to the rich chemical profile, and the strong effect of agronomical practices, mainly irrigation and harvesting, on the qualitative and quantitative characteristics of its metabolite profile.

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