Publications by authors named "Longo Vincenzo"

Beer and its components show potential for reducing hepatic steatosis in rodent models through multiple mechanisms. This study aimed to evaluate beer's anti-steatotic effects in a high-fat diet (HFD)-induced mouse model of Metabolic dysfunction-Associated Liver Disease (MASLD) and to explore the underlying mechanisms. In the HFD group, steatosis was confirmed by altered blood parameters, weight gain, elevated liver lipid content, and histological changes.

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Introduction: post-bariatric hypoglycemia (PBH) is considered a chronic complication after gastric bypass (RYGB) impacting roughly 30 % of patients. Current treatments often focus on nutritional interventions to reduce the frequency of episodes. This prospective study evaluated the effectiveness of Lisosan G (LG), a fermented wheat-based supplement added to the diet, in mitigating PBH episodes and elucidating its mechanism of action on the gut-pancreas axis.

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Background: Colorectal cancer (CRC) risk is strongly affected by dietary habits with red and processed meat increasing risk, and foods rich in dietary fibres considered protective. Dietary habits also shape gut microbiota, but the role of the combination between diet, the gut microbiota, and the metabolite profile on CRC risk is still missing an unequivocal characterisation.

Methods: To investigate how gut microbiota affects diet-associated CRC risk, we fed Apc-mutated PIRC rats and azoxymethane (AOM)-induced rats the following diets: a high-risk red/processed meat-based diet (MBD), a normalised risk diet (MBD with α-tocopherol, MBDT), a low-risk pesco-vegetarian diet (PVD), and control diet.

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Over the course of the last twenty years, there has been a growing recognition of the pig's potential as a valuable model for studying human drug metabolism. This study aimed to investigate the expression, enzymatic activity, inhibitory susceptibility, and cellular localization of carboxylesterases (CES) in porcine lung tissue not yet explored. Our results showed that CESs hydrolysis activity followed Michaelis-Menten kinetics in both cytosolic and microsomal fractions of porcine lung tissues (N = 8), with comparable hydrolysis rates for tested substrates, namely 4-nitrophenyl acetate (pNPA), 4-methylumbelliferyl acetate (4-MUA), and fluorescein diacetate (FD).

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The global prevalence of obesity more than doubled between 1990 and 2022. By 2022, 2.5 billion adults aged 18 and older were overweight, with over 890 million of them living with obesity.

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Halophyte species represent valuable reservoirs of natural antioxidants, and, among these, stands out as a promising edible plant. In this study, young and old leaves were compared for the content of bioactive compounds and antioxidant activity to assess changes in different growth phases; then, the potential protective effects against low-dose CCl-induced toxicant-associated fatty liver disease (TAFLD) were investigated by administering an aqueous suspension of young leaves to rats daily for two weeks. Quantification of total and individual phenolic compounds and in vitro antioxidant activity assays (DPPH, FRAP, and ORAC) showed the highest values in young leaves compared to mature ones.

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Millet, a gluten-free cereal, has received attention for its environmental friendliness and higher protein content than other grains. It represents a staple food in many African countries, where fermentation is traditionally used for preserving food products and preparing different cereal-based products. This study aimed to assess the impact of sourdough fermentation on bioactive compounds and antioxidant and anti-inflammatory properties of pearl millet from Burkina Faso.

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Despite the many beneficial properties of legume plants, their use in diets for poultry is limited by the presence of antinutritional factors. The aim of the study was to determine the activity of DT-diaphorase, ethoxycoumarin O-deethylase, and catalase, and the concentration of malondialdehyde in liver tissue, as well as the activity of SOD and CAT in the serum of Hy-line Brown hens fed a diet supplemented with various doses of seeds. The results indicate that the use of large amounts of lupin in the diet resulted in an increase in MDA concentration in the liver and the lipid vacuolization of hepatocytes.

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  • This study explores the extraction and nano-encapsulation of propolis from Qaluiobia, focusing on methods using water, ethanol, and supercritical fluid-carbon dioxide at 50°C to enhance bioavailability and shelf life of food products.
  • Results show that extracts from ethanol and SCF-CO yield greater antioxidant activities and higher concentrations of flavonoids, with nano-capsules proving stable at high temperatures and showing cytotoxic effects against human cancer cell lines.
  • The fortified crackers with these nano-capsules achieved high acceptability rates (around 86%) and demonstrated the ability to maintain antioxidant activity, prolonging shelf life by preventing rancidity.
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Green microalgae are single-celled eukaryotic organisms that, in recent years, are becoming increasingly important in the nutraceutical, cosmetic, and pharmaceutical fields because of their high content of bioactive compounds. In this study, a particular green microalga was isolated from freshwater highland lakes of Ecuador and morphologically and molecularly identified as (ChA), and it was studied for nutritional and nutraceutical properties. The phenolic composition and the fatty acids profile of lyophilized cells were determined.

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  • Seeds from grape processing are rich in bioactive compounds, but their equivalents from other species have been less studied.
  • The research compared the phenolic composition, antimicrobial, and antioxidant activities of seed extracts from four species using various analytical methods like LC-MS/MS and different assays for antioxidant activity.
  • The results indicated that the seed extracts from certain species had higher levels of phenolics and displayed superior antioxidant and antimicrobial properties, suggesting their potential use in food, cosmetics, and pharmaceuticals.
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  • Green microalgae from Ecuadorian Highlands are being studied for their nutritional value and health benefits, specifically their antioxidant, antimicrobial, and antimutagenic properties.
  • The study found that the aqueous extract from the microalgae has significant antioxidant capacity and moderate antibacterial activity, likely due to its high polyphenolic content.
  • Results suggest the extract can reduce damage in human endothelial cells and exhibit antimutagenic effects, indicating its potential as a functional food rich in bioactive compounds.
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Quinoa ( Willd.) is a plant of South American origin recently valorized for its nutritional and nutraceutical properties in human diet. Quinoa is cultivated in many parts of the world, with a selection of varieties with good adaptability to extreme climatic conditions and salt stress.

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The fermentation process has been widely used to improve plant-based foods' nutritional and nutraceutical properties. This study aimed to investigate and compare the impact of sourdough fermentation on the bioactive content and profile, antioxidant and antihypertensive activities, as well as the anti-inflammatory properties of fermented (FS) and non-fermented (NFS) flour from Tuscan wheat (spelt) on tumor necrosis factor-alpha (TNF-α)-inflamed human intestinal epithelial cells (HT-29). FS showed significantly higher total phenolic and flavonoid content, in vitro and ex vivo antioxidant activities, and ACE-inhibitory activities than NFS.

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  • The study focuses on the medicinal plant which contains phytochemicals like furanocoumarins, pterocarpans, and flavonoids, and explores how its endophytic bacterial community interacts with these compounds.
  • Different bacterial strains were isolated from various plant organs (shoots, roots, seeds) and analyzed for susceptibility to plant extracts, revealing variations based on the metabolites produced by different plant parts.
  • The results indicated that aerial part endophytes produced more indole-3-acetic acid compared to root endophytes, while none showed biosurfactant production or antagonistic activity, suggesting new avenues for research on endophyte susceptibility and the impact of plant compounds on their distribution.
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Herein we characterized the bioactive metabolites of the aqueous extract of Kavolì®, a commercial product composed of a mixture of Brassica oleracea leaves, and assessed its potential ameliorating effects in a rat model of non-alcoholic fatty liver disease (NAFLD). Kavolì® extract showed high levels of bioactive compounds and strong in vitro antioxidant activities. Chlorogenic and neochlorogenic acids were identified as the most representative polyphenols.

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The containment measures due to the COVID-19 pandemic affected food-related activities, influencing dietary behavior, food habits, and dietary choices. This study aimed to compare the relationship between food involvement and dietary choices before and during the pandemic, investigating the role played by food in dietary habits. Responses given by 2773 Italian consumers to an online survey were studied through the Food Involvement Scale (FIS) and correlated to eating habits.

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  • The rising global population and demand for sustainable and healthier food options are pushing the food industry to explore alternative sources, with microalgae emerging as a popular choice for their health benefits.
  • Researchers evaluated eleven freshwater microalgal strains for their nutraceutical properties, focusing on beneficial compounds like photosynthetic pigments, polyphenols, and flavonoids, as well as their antioxidant activities.
  • The study found significant variability in the biochemical properties and antioxidant capabilities of the microalgae, influenced more by the treatment methods than by the source; the most promising strains for large-scale cultivation were identified as F1, F3, R1, and C2.
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Aromatic halophytes represent an exceptional source of natural bioactive compounds for the food industry. L., also known as sea fennel, is a halophyte plant colonizing cliffs and coastal dunes along Mediterranean and Atlantic coasts.

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Many subclinical diseases associated with inflammation occur in sheep during the periparturient period. Clinical symptoms are usually detected at an advanced stage of the disease; therefore, there are considerable risks of permanent health disorders in fetuses or dams. Determination of acute phase proteins (APPs) as markers of inflammation may allow for an earlier diagnosis and effective treatment.

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Introduction: Recently, the Food and Drug Administration authorized the marketing of IQOS Tobacco Heating System as a Modified Risk Tobacco Product based on an electronic heat-not-burn technology that purports to reduce the risk.

Methods: Sprague-Dawley rats were exposed in a whole-body mode to IQOS aerosol for 4 weeks. We performed the chemical characterization of IQOS mainstream and we studied the ultrastructural changes in trachea and lung parenchyma of rats exposed to IQOS stick mainstream and tissue pro-inflammatory markers.

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Aims: Human carboxylesterases (CESs) and arylacetamide deacetylase (AADAC) are serine-esterase enzymes catalyzing the hydrolysis of many compounds containing esters, amides, thioesters, or acetyl groups. This study aimed to investigate the presence, kinetic parameters, and inhibition of CES1, CES2, and AADAC in A549, H460, and H727 pulmonary cells in both living cells and S9 fractions.

Materials And Methods: The p-nitrophenyl acetate (pNPA) and 4-methylumbelliferyl acetate (4-MUA) were used as non-selective esterase substrates, whereas phenacetin as selective AADAC substrate.

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To preserve quality and extend the shelf life of tomato, a bioactive edible coating was prepared using gelatin wastes from pharmaceutical industry and lyophilised blueberry juice (BJ). The effectiveness of gelatin-coating (G) and G enriched with blueberry juice (GB) was tested, monitoring carotenoids, polyphenols and flavonoids content, the antioxidant activity and the antimicrobial efficiency of coating against the native microflora.After 7 d of storage, coated fruit showed higher phenolic and flavonoids content and increased antioxidant activity, while carotenoids were unaffected by the treatments.

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Article Synopsis
  • Millet is a nutritious cereal that remains underused in Europe, despite its health benefits and higher phenolic content compared to other cereals.
  • Research showed that fermented millet significantly increases the levels of beneficial compounds like flavonoids and cinnamic acids, which may help manage type-2 diabetes symptoms.
  • Functional foods derived from fermented millet could become a popular health trend in European markets due to their antioxidant properties and potential health benefits.
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  • Polyphenol-rich foods might help prevent diseases caused by oxidative stress and have antibacterial properties.
  • The study analyzed wild L. fruit from southeast Italy for its antimicrobial activity and antioxidant capacity, finding high levels of beneficial compounds like rutin and 4-hydroxybenzoic acid.
  • PSF extract showed effective antimicrobial action against harmful bacteria and exhibited strong antioxidant effects in both cell tests and oxidative stress-induced rat models, suggesting its potential use in health and food industries.
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