Search Results (1,319)

Ocular diseases like age-related macular degeneration (AMD), diabetic retinopathy (DR), glaucoma and cataracts are major causes of visual impairment all over the world and are closely linked to oxidative stress, inflammation and mitochondrial dysfunction. This narrative review critically summarizes the available evidence on how various natural bioactive compounds, such as carotenoids, polyphenols, flavonoids, omega-3 fatty acids and botanical extracts, can affect important molecular pathways associated with ocular degeneration. Their antioxidant, anti-inflammatory, anti-angiogenic and neuroprotective properties are given particular emphasis, especially regarding the Nrf2, NF-κB and VEGF signaling pathways. This review is different from past reviews that simply discuss the potential of bioactives in the general nutritional context; rather, it unfolds the disease-specific mechanisms and compound-specific molecular actions and gives special attention to recent advances in nano-delivery systems and precision nutrition strategies to increase the bioavailability and therapeutic targeting of these nutrients in the eyes. Moreover, it offers a framework for a comparison of evidence between preclinical and clinical studies, as well as identifying current translational gaps, including limited bioavailability and a lack of long-term clinical trials, and suggesting future directions such as genotype-guided nutrition and microbiome-informed interventions. In general, this review provides a mechanistic and translational overview of how dietary bioactive compounds relate to eye health and offers the perspective of their possible use in prevention and complementary treatment for vision-related diseases. Full article

Understanding the spatial determinants of food intake is crucial for establishing links between maternal food environments, diet, and health outcomes. Therefore, this study aimed to identify how the distance and density of built food environments in proximity to African American pregnant women living in urban settings are associated with nutrient-dense, anti-inflammatory food intake. We hypothesized that living closer to grocery stores and farther from fast-food restaurants and convenience stores is associated with increased intake. We also hypothesized that higher grocery-store density and a lower density of fast-food restaurants and convenience stores is associated with increased intake. Using cross-sectional data from the Early Life Adversity, Biological Embedding (eLABE) and Risk for Developmental Precursors of Mental Disorders Study, as well as geographic information system (GIS) data and linear regression analyses, we examined the relationships between the built food environment and food intake in the St. Louis metropolitan area, adjusting for covariates. This analysis revealed that shorter distance to fast-food restaurants and longer distance to grocery stores were associated with higher legume intake in adjusted models. These findings highlight nuanced and counterintuitive associations, underscoring the need for additional research to understand why more distant grocery stores and closer fast-food restaurants are linked to higher legume intake among African Americans. Full article

Background: Due to α-Ketoglutaric acid (AKG)’s anti-inflammatory and antioxidant properties, it may serve as a beneficial feed supplement for broilers. This study aimed to evaluate the impact of AKG supplementation in broiler diets on growth efficiency, blood indicators, and histological status. Methods: Two hundred sixteen unsexed, one-day-old broilers were randomly assigned to three experimental groups utilizing a completely randomized design. Each treatment was then subdivided into six replicates, each consisting of twelve chicks. In the experiment, the 1st group received a control (basal diet); the 2nd group received the basic diet supplemented with 0.5% AKG; and the 3rd group received the basal diet supplemented with 1.0% AKG. Results: The findings indicate that the addition of 0.5% and 1% AKG to broiler feed significantly (p < 0.05) improved BW, BWG, and FCR, particularly during the early stages of growth. The 0.5% AKG group had better feed efficiency and less FI, which means they grew faster and used nutrients better. AKG administration significantly (p < 0.05) increased TP and albumin levels in avian subjects, while simultaneously decreasing MDA and elevating CAT concentrations. Adding AKG to the broiler diet raises the levels of RBC, Hb, and PCV, but lowers RDW_CV. The results indicate that AKG lowers inflammation by raising IL-10 levels and lowering IL-1β levels. It also raises levels of antioxidant enzymes like SOD and CAT. Microscopic analysis revealed normal jejunal mucosa, submucosa, and muscular layers across all groups, including those receiving AKG supplements. The jejunal villus height, crypt depth, and their ratio were unchanged. The structure and function of the intestinal lining showed no significant changes when compared to the control. Conclusions: Adding AKG to broiler feed helps their growth, biochemical, and immune system indicators, but it does not hurt their histological conditions. Full article

The increasing global demand for animal-derived food products, combined with growing environmental and public health concerns, has intensified the search for sustainable strategies in livestock production. Among emerging nutritional approaches, phytogenic feed additives (PFAs) have gained attention as natural alternatives to conventional synthetic growth promoters. PFAs, derived from herbs, spices, essential oils, and plant extracts, contain diverse bioactive compounds such as phenolics, flavonoids, alkaloids, terpenoids, and saponins. These compounds exhibit antimicrobial, antioxidant, anti-inflammatory, and immunomodulatory activities that can support animal health, productivity, and product quality. Current research indicates that PFAs positively influence digestive physiology by modulating gut microbiota, improving intestinal integrity, and stimulating digestive enzyme secretion. These mechanisms enhance nutrient utilization, feed efficiency, and growth performance. In addition, the antioxidant and immunomodulatory properties of plant-derived compounds strengthen the ability of animals to cope with physiological stress and disease, potentially reducing reliance on synthetic antimicrobials and supporting antibiotic-free production systems. PFAs may also improve reproductive performance and physiological stability, particularly in small livestock species and indigenous breeds. Beyond productivity benefits, phytogenic additives contribute to environmental sustainability by improving feed conversion efficiency and reducing nutrient excretion. The present literature review confirms that although variability in plant composition and the need for standardization remain challenges, PFAs represent a valuable component of integrated nutritional strategies aimed at achieving resilient, environmentally responsible, and economically sustainable livestock production systems. Full article

Prolonged high temperature and humidity pose significant challenges to sheep health and productivity due to heat stress. This research assessed the physiological regulatory impact of supplementing heat-stressed Hu sheep with rumen-protected taurine. Forty-eight animals were assigned to four groups receiving different taurine doses over a 63-day period. A comprehensive evaluation was conducted on growth performance, nutrient digestibility, serum biochemical parameters, antioxidant and immune indices, transcriptomic profiles, and gut microbiota composition. Dietary supplementation with 0.4% RPT significantly enhanced feed intake, daily weight gain, and feed efficiency. Serum analysis revealed increased taurine and high-density lipoprotein levels, reduced cortisol and inflammatory cytokines, and elevated antioxidant enzyme activity. Transcriptomic analysis identified differentially expressed genes enriched in immune and antiviral pathways, including JAK-STAT signaling pathway being among those highlighted. Gut microbiota profiling showed increased diversity and improved composition, particularly Olsenella and its several species were positively correlated with anti-inflammatory responses. These findings demonstrate that rumen-protected taurine supplementation at 0.4% can effectively alleviate heat stress by improving physiological resilience, immune balance, and gut health in sheep. This research provides a scientific basis for developing nutritional strategies to enhance animal welfare and productivity under climate stress conditions. Full article

B cells, an important component of adaptive immunity, play a key role in defense against a variety of infections and diseases including cancer. B cells play a dual role in cancer, contributing to both anti-tumor immunity and tumor progression. Metabolic reprogramming in the TME has a profound impact on B cell dynamics, reshaping their energetic landscape, influencing their differentiation and effector cell functions. These alterations arise from the complex interplay between intrinsic metabolic pathways and extrinsic factors, such as nutrient availability, hypoxic conditions, and tumor-derived signals. In the TME, B cells promote glycolysis over oxidative phosphorylation (OXPHOS) to meet the high energy demands of activation and proliferation. However, this metabolic plasticity is also mimicked by tumors, leading to dysfunctional B cell phenotypes, such as regulatory B cells (Bregs), which suppress anti-tumor immunity. Nutrient deprivation and accumulation of metabolic byproducts, including lactate, further impair B cell-mediated immune responses. This review highlights the complex interaction between B cell metabolism and cancer, emphasizing the effects of altered energetics on B cell function and implications on tumor progression and therapy. Decoding the metabolic vulnerabilities of B cells in the tumor niche can uncover novel therapeutic strategies against cancer. Full article

Seed aging is a key issue that affects the preservation of germplasm resources and crop production. At present, the anti-aging properties of perilla seeds and the mechanisms of differences among varieties have not been clearly reported. This study aims to analyze the mechanisms of changes in storage substances and hormone levels in different varieties of perilla during the artificial aging process. The results show that seed aging can significantly reduce the activity of antioxidant enzymes in perilla seeds, decrease the contents of storage nutrients such as soluble proteins, soluble sugars, and oil content, reduce the accumulation of unsaturated fatty acids such as oleic acid, linoleic acid, and linolenic acid, and significantly decrease the contents of endogenous Gibberellic acid (GA₃) and Indole-3-acetic acid (IAA). Meanwhile, the levels of hydrogen peroxide (H₂O₂) and Malondialdehyde (MDA) increased significantly, while the contents of saturated fatty acids such as palmitic acid and stearic acid rose, and the contents of endogenous Abscisic acid (ABA), Jasmonic acid (JA), Salicylic acid (SA), and Trans-zeatin riboside (TZR) were significantly upregulated. There are significant genotype differences in the tolerance of different perilla varieties to seed aging. The sensitivity of Shiban Perill (S23014) to aging stress is significantly higher than that of Qisu No. 2 (S23017). This study has confirmed that seed aging has adverse effects on the germination of perilla seeds by down-regulating the activity of antioxidant enzymes, reducing the accumulation of storage nutrients, and disrupting the balance of endogenous hormones. The research results provide an important theoretical basis for the preservation of perilla seed germplasm resources and the selection of anti-aging varieties. Full article

Aging is a multifactorial biological process characterized by a progressive decline in functional capacity at the molecular, cellular, tissue, and organismal levels. The aim of this review is to summarize current concepts of aging mechanisms and the prevention of age-related pathologies from a lymphological perspective, taking into account contemporary literature data and the results of our own studies. Currently, two major concepts dominate in gerontology: programmed aging, which considers aging as a genetically determined process, and damage accumulation theories, which associate aging with the progressive accumulation of molecular and cellular damage. The hallmarks of aging include genomic instability, telomere shortening, epigenetic alterations, impaired proteostasis and macroautophagy, dysregulation of nutrient sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, altered intercellular communication, chronic inflammation, dysbiosis, hormonal imbalance, and disturbances in interstitial humoral transport and lymphatic outflow. At the tissue and organ levels, impairment of lymphatic drainage is of particular importance, leading to interstitial fluid stagnation and the accumulation of toxic metabolites, which exacerbate cellular and subcellular dysfunction. Phytotherapeutic agents containing flavonoids, phenolic compounds, terpenoids, glycosides, polysaccharides, and other biologically active substances exhibit antioxidant, anti-inflammatory, and cytoprotective properties. They inhibit lipid peroxidation, reduce excessive nitric oxide production, and contribute to the restoration of interstitial humoral transport and lymphatic outflow. Interstitial humoral transport and the lymphatic system, together with renal mechanisms, play key roles in maintaining body fluid homeostasis. Targeted regulation of lymphatic system function may help reduce tissue congestion, maintain physiological homeostasis, and improve quality of life in the elderly. Full article

Nigella sativa cold-pressed oil (NSO) is rich in nutrients and biologically active compounds. This study aimed to evaluate its effects on symptoms and serum levels of inflammatory and disease activity markers in rats with Freund’s adjuvant-induced arthritis (AIA). Animals were treated orally with NSO at doses of 1 and 3 mL/kg for two weeks before arthritis induction and throughout the experiment. Hind paw edema and nociceptive thresholds were measured by plethysmometer, Hargreaves apparatus, and Randall–Selitto test, respectively. At the end of the experiment, TNF-α, IL-1β, IL-10, brain-derived neurotrophic factor (BDNF), and neuropeptide Y (NPY) serum levels were measured. NSO preventive administration significantly reduced paw edema of the affected hind paw, along with an increase in the nociceptive threshold to both thermal and mechanical stimuli. Administration of NSO resulted in a significant reduction in serum levels of IL-1β and NPY (p < 0.01 and p < 0.05, respectively), while TNF-α and IL-10 levels remained comparable to those in the untreated AIA control group. These findings indicate that NSO exerts anti-inflammatory and analgesic effects and modulates circulating IL-1β and NPY (an independent marker associated with disease activity) in experimental arthritis. Full article

Background/Objectives: Chronic inflammation is a fundamental biological process underlying aging and frailty. We recently demonstrated that an anti-inflammatory diet, assessed using the Dietary Inflammatory Index (DII), was associated with serum high-sensitivity C-reactive protein levels and frailty incidence among community-dwelling older adults. The present study aimed to co-produce behavior change intervention promoting an anti-inflammatory diet by participatory action research with older adults. Particularly, increasing intake of dietary fiber was targeted as it represents a nutrient with the highest anti-inflammatory potential within the DII framework. Methods: Participants were community-dwelling older adults engaged in frailty checkup activity. Six co-production workshops were conducted between May 2022 and February 2023, integrating semi-structured group work and scientific evidence. Participant satisfaction was assessed after each session. Changes in dietary behavior were evaluated using DII score and dietary intake assessed by the Brief Self-Administered Diet History Questionnaire (BDHQ). Results: A cumulative total of 66 participants was involved (mean age, 73.7 ± 4.8 years; 80.0% women). When compared before and after co-production workshops, total DII scores and DII scores calculated by anti-inflammatory nutrients significantly decreased (p = 0.031 and p = 0.020, respectively). Dietary fiber intake also significantly increased following the workshop (p = 0.044). Among dietary fiber-rich food groups, mushroom consumption showed a particularly significant increase (p = 0.048). Conclusions: Co-production workshops integrating group work and scientific evidence were effective in promoting behavioral changes toward an anti-inflammatory diet among community-dwelling older adults. This developed intervention may represent a feasible and practical dietary strategy for frailty prevention in community settings. Full article

For centuries, bee pollen has been known for its medicinal value and regarded as a rich source of bioactive compounds, including essential nutrients and phytochemicals. Its putative therapeutic and health-promoting benefits include antioxidant, antibacterial, anticarcinogenic, anti-inflammatory, hypoglycaemic, and numerous additional properties. However, the beneficial qualities can only be guaranteed if potential contaminants do not detract from its superfood image. Recent research has indicated frequent occurrence of mycotoxins in bee pollen, occasionally at concentration levels exceeding safe intakes. There are very few published publications in the literature related to the research of mycotoxin concentrations in bee pollen. Based on that, the aim of this review is to provide an overview update of existing scientific research on the presence, prevalence and types of mycotoxins in bee pollen, with particular emphasis on toxins produced by fungi. Furthermore, the aim is to compile the available data on mycotoxin contamination of pollen in order to identify factors relevant to the safety and quality of bee pollen as a food product and dietary supplement. Full article

Fermented foods hold a significant position in global culinary traditions, particularly within ethnic and traditional diets. They are widely consumed for their distinctive flavors, textures, and health-promoting attributes. Although extensive research exists on fermentation processes, comprehensive insights into the nutraceutical potential and mechanistic health benefits of these foods remain limited. This review highlights key fermented products traditionally consumed in the north-eastern region of India including Hawaijar, Soibum, Ngari, alongside global counterparts such as Natto, Chongkukjang, Miso, Kefir, Tempeh, Kimchi, Kombucha, and Sauerkraut. These foods are rich in bioactive compounds (phenolics, peptides, organic acids, and exopolysaccharides), probiotic microorganisms, and essential nutrients that collectively contribute to their antioxidant, anti-inflammatory, antidiabetic, and cardioprotective effects. Recent in vitro and in vivo studies demonstrate that regular consumption of such foods may support the prevention and management of chronic conditions, including diabetes, cardiovascular diseases, obesity, gastrointestinal disorders, and neurodegenerative diseases. However, mechanistic studies remain insufficient to fully elucidate the synergistic interactions between microbial metabolites, host metabolism, and gut microbiota modulation. The review therefore emphasizes the biochemical and therapeutic mechanisms underlying ethnic fermented foods, advocating for advanced metabolomic and molecular approaches to validate their health-promoting efficacy. This review provides a timely and integrative perspective by critically evaluating preclinical and clinical evidence, highlighting mechanistic insights, translational gaps, and future research priorities. These insights will support the development of functional food formulations and reinforce the integration of traditional fermented foods into modern dietary strategies for disease prevention and overall well-being. Full article

Sjögren’s disease (SjD) is a chronic autoimmune disorder characterized by progressive dysfunction of the exocrine glands, driven primarily by aberrant T- and B-cell activation. Current therapeutic strategies remain largely symptomatic and are frequently limited by off-target effects and long-term toxicity, underscoring an urgent need for safer, mechanism-based adjunctive approaches. In recent years, nutritional interventions and medicinal herbs have emerged as promising complementary strategies, owing to their capacity to modulate immune–metabolic pathways and restore immune homeostasis. Nutrients such as n-3 polyunsaturated fatty acids (PUFAs) and short-chain fatty acids (SCFAs) exert well-documented anti-inflammatory effects and influence immune cell differentiation via immunometabolic reprogramming. Concurrently, bioactive constituents derived from medicinal herbs offer multi-target regulation of inflammatory signaling and lymphocyte function. This review synthesizes current advances in the immunomodulatory roles of dietary components and edible herbs in the context of SjD, focusing on their mechanistic convergence on T-cell subsets, B-cell responses, and the gut–immune axis. By integrating traditional knowledge with contemporary immunological insights, this article aims to provide a conceptual framework for the rational integration of nutritional and herbal strategies into the clinical management of SjD. Full article

Cutaneous melanoma is the most lethal form of skin cancer because of its aggressiveness, rapid metastasis, and high therapeutic resistance. The 2018 World Health Organization (WHO) classification emphasized that melanoma comprises distinct subtypes defined by cumulative sun damage, site of origin, and molecular characteristics, which explain differences in mutational burden, immunogenicity, and treatment response. Immunotherapy with anti-PD-1 therapy such as nivolumab and pembrolizumab changed the therapeutic landscape by restoring CD8+ T-cell activity and improving survival. Still, many patients show primary or acquired resistance influenced by low PD-L1 expression, loss of antigen presentation, tumor metabolic plasticity, and an immunosuppressive microenvironment. Mitochondria are central to this process. They regulate ATP generation through oxidative phosphorylation (OXPHOS), redox control, apoptosis, and the metabolic programming needed for T-cell activation. In the tumor microenvironment (TME), hypoxia, nutrient restriction, and PD-1 signaling reduce mitochondrial biogenesis, increase fission and reactive oxygen species (ROS) accumulation, and lead to exhaustion and impaired effector function. Moreover, tumor cells outcompete immune cells for key nutrients such as glucose and glutamine, while increased lactate production and extracellular acidosis further suppress mitochondrial respiration in T cells. Strategies to overcome resistance include restoring oxidative metabolism, activating PGC-1α, supplying metabolic substrates, and combining checkpoint blockade with inhibitors of glycolysis or glutaminolysis to enhance the immune response. Full article

Quinoa contains all the essential amino acids for human nutrition, which is also known to be gluten-free. In this research, black, red, white, and gray quinoa were germinated to ferment beers. The effects of germination as a bioprocess on the nutritional profile, anti-nutrients, and flavor development in quinoa beers were systematically investigated, and a comprehensive comparison was made with two commercially popular beers. The results indicated that the optimal germination time for quinoa in beer production was 48 h. Germination significantly increased the contents of polyphenols (255.9 mg/L in white quinoa beer) and flavonoids (404.34 mg/L in red quinoa beer), which enhanced the antioxidant activity of the beers. Furthermore, the levels of protein and γ-aminobutyric acid were elevated through germination. Notably, germination markedly improved the potential nutritional accessibility of the beers through reducing the anti-nutritional factors, including phytic acid, tannins, and trypsin inhibitor. In terms of flavor, quinoa beers developed a unique and pleasant aromatic profile, characterized by compounds such as ethyl octanoate, ethyl 9-decenoate, and ethyl pentadecanoate, which distinguished them from commercial beers. In conclusion, germinated quinoa can serve as a high-quality brewing material for producing beer with enhanced nutritional value, reduced anti-nutrients, and improved flavor characteristics. Full article