Search Results (441)

Background/Objectives: This study examined the metabolic, oxidative, immunological, and histomorphological effects of the multicomponent fermented biological product derived from camel milk, Inullact-Fito, in comparison to metformin in a rat model of alloxan-induced diabetes resulting from insulin insufficiency. The model was chosen as an experimental system that replicates pancreatic β-cell damage induced by oxidative stress rather than insulin resistance. Methods: Alloxan-induced diabetes was used to evaluate metabolic, oxidative, immunological, and histomorphological alterations. Metformin was utilized as a pharmacological comparator. Blood glucose levels, circulating insulin concentrations, markers of oxidative stress and lipid peroxidation, immunoglobulin levels, CD4⁺/CD8⁺ T cell balance, and pancreatic histostructure were assessed. Results: Alloxan administration led to substantial hyperglycemia, oxidative stress, immunological imbalance, and structural damage to pancreatic tissue. Following therapy with Inullact-Fito, blood glucose levels reduced dramatically (from 21.9 ± 0.22 to 9.85 ± 0.10 mmol/L, p < 0.05), circulating insulin concentrations were largely corrected, oxidative stress and lipid peroxidation markers decreased. Immunological evaluation revealed decreased serum immunoglobulin M and IgG levels (p < 0.05) and partial normalization of the CD4⁺/CD8⁺ T cell balance. Metformin showed comparative effects; however, its activity in this model is limited by its primary mechanism related to insulin resistance. Conclusions: Overall, the data reveal that Inullact-Fito combines metabolic, antioxidant, and immunomodulatory actions under experimental oxidative and metabolic stress conditions. Further research using models of insulin resistance and type 2 diabetes, as well as long-term clinical trials, is needed to fully evaluate the therapeutic potential, safety profile, and translational importance of this fermented dairy product as a functional nutritional intervention. Full article

Background/Objectives: Vitamin B₁₂ (cobalamin) and folate (vitamin B₉) are essential cofactors in one-carbon metabolism required for DNA synthesis, methylation, and genomic stability. Deficiencies in these nutrients can cause megaloblastic anemia, neurological dysfunction, and hyperhomocysteinemia, linking micronutrient imbalance to cardiovascular and neurocognitive outcomes. Population-based surveillance of these biomarkers provides insight into nutritional trends and supports analytical standardization. Methods: This retrospective study included all routine plasma (P) vitamin B₁₂ and folate measurements performed at Uppsala University Hospital from 2005 to 2024 (n = 647,302 and 578,509, respectively). Data were extracted from the laboratory information system and summarized using annual medians, percentile distributions, and coefficients of variation (CV). Linear regression was used to validate the method comparison and assess the impact of the 2021 transition from the Abbott Architect to the Roche cobas platform. Descriptive statistics summarized the temporal and seasonal patterns of P-vitamin B₁₂ and P-folate. Results: Median P-vitamin B₁₂ concentrations remained stable (340–370 pmol/L; median CV = 4.6%), while P-folate increased from 10.5 to 15.5 nmol/L (median CV = 12.9%) from 2005 to 2024. Low P-folate (<7 nmol/L) was observed in 7.1% of measurements and low or borderline P-vitamin B₁₂ (<250 pmol/L) in 22.6%. Females exhibited slightly higher concentrations of both analytes. Although no clear seasonal pattern was observed, small biological effects cannot be excluded. Sample volumes decreased during the summer. The transition to Roche assays introduced measurable methodological shifts, particularly for P-folate. Conclusions: Levels of P-vitamin B₁₂ remained stable over two decades, while P-folate status increased modestly. This reflects both dietary influences and assay-related differences following the 2021 platform transition. Continuous surveillance of biomarker medians provides a sensitive tool for detecting analytical drift and for monitoring long-term nutritional trends in clinical populations. Full article

The preventive effect of leucine (Leu) against colonic damage in piglets infected with porcine epidemic diarrhea virus (PEDV) was examined in this study. Three groups (n = 6) were randomly assigned to eighteen 7-day-old Du-roc × Landrace × Large piglets (body weight [BW] = 2.58 ± 0.05 kg): Control, PEDV-infected (PEDV), and Leu-supplemented + PEDV-infected (Leu + PEDV). Following a three-day period of acclimatization, the Leu + PEDV group was given Leu (400 mg/kg BW) orally every day. On day eight, the PEDV and Leu + PEDV groups were challenged with PEDV, while the Control group was given Dulbecco’s Modified Eagle’s Medium. Colonic tissues were collected on day 11. PEDV infection induced severe colonic damage by an increase in crypt, disrupting intestinal homeostasis, including impaired barrier integrity (matrix metalloproteinase-7 and matrix metalloproteinase-13 upregulation), mucus disorganization (mucin 5AC elevation), oxidative stress (reduced catalase activity and increased malondialdehyde levels), inflammation, electrolyte imbalance and enhanced viral replication. Leu supplementation reversed these injuries by alleviating oxidative stress, suppressing inflammation, inhibiting viral replication and stabilizing ion homeostasis. This study provides a scientific basis for Leu as a nutritional intervention to alleviate PEDV-induced colonic damage in piglets. Full article

Aging is a multifactorial process marked by a progressive decline in physiological function and increased vulnerability to diseases such as neurodegeneration, cancer, cardiovascular disorders, and infections. A central feature of aging is inflammaging, a state of chronic low-grade inflammation driven by cellular senescence, mitochondrial dysfunction, and oxidative stress. Recently, two regulated forms of non-apoptotic cell death—ferroptosis and cuproptosis—have emerged as critical mechanisms linking redox imbalance, mitochondrial stress, and disrupted metal homeostasis to age-related pathology. Ferroptosis, an iron-dependent process characterized by lipid peroxidation and impaired glutathione peroxidase 4 (GPX4) activity, and cuproptosis, a copper-dependent mechanism associated with protein lipoylation stress, both intersect with aging-related changes in mitochondrial and metabolic function. Importantly, these two forms of cell death should not be viewed as entirely separate pathways but rather as interconnected axes within a broader metal–redox–metabolic network. Disturbances in copper or iron homeostasis, glutathione (GSH)/GPX4 dysfunction, mitochondrial and iron-sulfur (Fe–S) cluster compromise, and enhanced lipid peroxidation may converge to lower cellular survival thresholds, thereby exacerbating oxidative damage, immune dysfunction, and tissue degeneration and ultimately fueling aging and inflammaging. This review offers a unique integrated perspective that situates ferroptosis and cuproptosis within a unified framework of aging biology, emphasizing their roles in age-related diseases and the therapeutic potential of targeting these pathways through nutritional, pharmacological, and lifestyle interventions. Full article

Background: Obesity is increasingly recognized as a complex condition characterized by the convergence of metabolic dysregulation and psychological vulnerability. Insulin resistance (IR) has been identified as a biological bridge linking metabolic imbalance with affective symptoms such as anxiety, depression, and disordered eating behaviors. Methods: Fifteen obese adults (mean age = 25 ± 4.3 years) were evaluated through clinical examination, anthropometric assessment (BMI), biochemical assays (fasting insulin, AST, ALT), and standardized psychological assessments (STAI, BDI-II). In parallel, a rapid systematic review (2019–2025) synthesized evidence on the association between IR, affective dysregulation, binge eating disorder (BED), and the clinical role of insulin-sensitizing or incretin-based therapies. Results: Participants exhibited marked hyperinsulinemia (M = 79 μU/mL, SD = 6.61) and elevated anxiety (STAI-Trait = 54.22 ± 22.4) and depression scores (BDI-II = 21.6 ± 7.5). Liver enzymes were within normal limits. Literature synthesis confirmed consistent associations between IR, mood symptoms, and BED, associated with biological processes including inflammation, HPA axis hyperactivity, and dopaminergic imbalance. Integrated treatment approaches combining cognitive-behavioral therapy, medical nutrition therapy, and insulin-sensitizing agents (metformin, GLP-1RA, and GLP-1/GIP RA) were supported as effective and safe options. Conclusions: The coexistence of insulin resistance and emotional dysregulation in obesity is consistent with the hypothesis of a bidirectional metabolic–emotional axis. Early, integrated interventions addressing both metabolic and psychological domains may improve clinical outcomes and reduce progression toward chronic metabolic and psychiatric comorbidity. Full article

Phosphorus (P) is a key macromineral essential for numerous physiological processes, including energy metabolism, skeletal mineralization, and cellular signaling. In dairy cattle, its homeostasis is tightly regulated by parathyroid hormone, calcitriol, and fibroblast growth factor 23 (FGF23). Phosphorus deficiency is common during the transition period and is associated with reduced milk yield, anemia, muscle weakness, and immunosuppression in severe or prolonged cases. This review summarizes the current understanding of phosphorus metabolism in ruminants, emphasizing differences from monogastric species, hormonal regulation, and the clinical manifestations of deficiency. Particular attention is given to postpartum hypophosphatemia, its relationship with acute-phase proteins, and the pathogenesis of postpartum hemoglobinuria and recumbency. The review also discusses diagnostic methods for assessing phosphorus status, recent findings on FGF23 physiology in cattle, and including demonstrated effects of phosphorus imbalance on periparturient immune suppression and increased environmental phosphorus losses through manure. Maintaining optimal phosphorus nutrition is crucial for bovine health, productivity, and reduction in environmental phosphorus losses. Full article

Feeding Chinese mitten crabs with fresh-frozen fish causes nutritional imbalance and increases disease risk. Compound feed offers better nutrient balance but still requires improvements in palatability and growth performance. This study evaluated the effects of replacing fresh-frozen fish with glutamine dipeptide-supplemented formulated diet on growth, hepatopancreas health, and edible quality, aiming to inform feed formulation strategies. A five-month feeding trial (June–October) was conducted with two treatments: the experimental group received only glutamine dipeptide compound feed, while the control group was fed a mix of fresh-frozen fish and compound feed. Crabs in the experimental group showed significantly higher body weight, length, and width. No significant differences were found in the hepatopancreatic index, gonadosomatic index, meat yield, or total edible yield. In October, the experimental group showed lower malondialdehyde (MDA) levels in the hepatopancreas and higher alkaline phosphatase (AKP) and acid phosphatase (ACP) activities in males. In females, hemolymph AKP and ACP were higher in the control, while glutamic pyruvic transaminase (GPT) was higher in the experimental group. Whether this is related to a potential risk of liver damage or a reaction at a special stage remains to be further verified. Digestive enzyme activities (protease, lipase, amylase) were generally higher in the experimental group, particularly in August (p < 0.05). In October, protease activity in females and lipase activity in males were significantly higher than in controls (p < 0.05). Nitrogen and phosphorus retention in muscle was also significantly higher, indicating better nutrient utilization (p < 0.05). Overall, these findings indicate that a glutamine dipeptide-supplemented diet provides a more effective and sustainable alternative to fresh-frozen fish over a five-month rearing period, improving digestive physiology, feed efficiency, growth performance, and edible quality and flavor. Full article

In aquaculture and in laboratory settings, the development of sustainable and functional feeds is crucial in order to promote fish welfare, growth, and reproductive performance. Among natural dietary supplements, spirulina (Arthrospira platensis), a blue-green microalga rich in proteins, essential fatty acids, vitamins, and antioxidant molecules, represents a promising bioactive ingredient capable of influencing both physiological and behavioral traits. A 32-week longitudinal study was conducted on adult zebrafish (Danio rerio) to evaluate the effects of spirulina supplementation (5%, 25%, 50%, 75%, and 100%) compared to a standard diet. Parameters related to survival, growth, reproductive fitness, and reproductive behavior were assessed in vivo and supported by a morphometric analysis of the gonads. Supplementation with 5% improved survival rate and the Body Condition Index, while 25% supplementation increased survival, enhanced reproductive behavior and spawning success (140% egg production vs. control), and supported optimal gonadal development and gamete maturation timing. Higher percentages of spirulina (50–100%) seem to cause nutritional imbalance, impairing health and reproductive fitness. This study demonstrates that moderate spirulina supplementation (5–25%) supports health, reproductive physiology, and behavior in zebrafish in a dose-dependent manner. These results highlight the potential of spirulina as a functional supplement for precision nutrition approaches, with implications for fish welfare, reproductive performance, and aquaculture sustainability. Full article

Background/Objectives: The Fourth Italian National Food Consumption Survey (IV SCAI 2017–2020) provides updated and comprehensive data on the dietary habits of the Italian population. The study aimed to assess nutrient intakes and their main food sources among individuals aged 3 months to 74 years and to evaluate the adequacy of intakes against the Italian dietary reference values (DRVs). Methods: A nationally representative sample of 1969 participants were surveyed using two non-consecutive food diaries (ages 3 months–9 years) and 24 h recalls (ages 10–74 years) in accordance with the European Food Safety Authority’s EU Menu guideline. The multiple source method was used to estimate the usual intakes accounted for intra-individual variability. Nutrient adequacy was assessed against age- and sex-specific DRVs, and the main food sources of macro- and micronutrients were identified. Results: Energy intake was below DRVs for adults, particularly women, while protein intake exceeded recommendations across all ages, mainly from animal sources (67% of total). Total fat (38%En) and saturated fat (12%En) exceeded the recommendations, whereas carbohydrates (45%En) and dietary fibre were suboptimal. Vitamin D and calcium intake were markedly below DRVs for all age groups; iron inadequacy was prevalent among females. The main energy sources were cereals (39%), milk and dairy (15%), oils and fats (13%), and meat (10%). Vegetables and fruits were leading contributors to vitamins A and C, while meat, fish, and dairy provided vitamin B12 and D. Conclusions: The Italian diet remains cereal-based but shows nutritional imbalances: notably, excessive protein and fat intake and widespread deficiencies in vitamin D, calcium, iron, and fibre. These findings underline the need for targeted nutrition policies to realign dietary patterns with the national recommendations. Full article

Type 2 diabetes mellitus (T2DM) is a complex metabolic disorder influenced not only by genetics, diet, and lifestyle but also by the gut microbiota. Dysbiosis (imbalances in microbial composition) can disrupt gut barrier integrity, alter microbial metabolites, and trigger low-grade inflammation, contributing to insulin resistance and β-cell dysfunction. Nutritional interventions, such as probiotics, prebiotics, synbiotics, postbiotics, and bioactive food components, represent potential therapeutic approaches for ameliorating gut eubiosis and advancing glycemic regulation. This narrative review incorporates evidence from selected studies identified by searches in PubMed, Scopus, and Google Scholar for studies published up to November 2025. The methodology included a structured literature search of in vitro, animal, and human studies, with a focus on intervention trials and mechanistic research. There are many positive signals from randomized controlled trials (RCTs), but heterogeneity and short follow-up limit definitive recommendations. Evidence from clinical and experimental studies indicates a beneficial effect on fasting glucose, hemoglobin A1c, and inflammatory markers, though heterogeneity of the individual and the variability in study designs limit generalization. There is insufficient evidence to recommend microbiota modulation as standard therapy in any disease. Key knowledge gaps include standardized interventions, stratified analyses by medication use (e.g., metformin), clinically meaningful endpoints, and long-term safety data. This review summarizes current knowledge on gut microbiota-driven mechanisms in T2DM and evaluates emerging microbiota-targeted therapies as adjunctive strategies for metabolic improvement. Full article

Chronic diseases, characterized by their high prevalence and protracted course, represent a paramount challenge to global public health, necessitating effective, evidence-based preventive strategies. While functional foods are widely recognized for their potential, a comprehensive synthesis elucidating their multitargeted mechanisms within a “food-medicine homology” framework and a clear trajectory from broad-spectrum health promotion to targeted intervention remains lacking. This review bridges this critical gap by systematically evaluating the scientific evidence and application potential of functional foods, with a specific focus on key bioactive compounds—β-glucan, omega-3 polyunsaturated fatty acids (PUFAs), dietary fiber, and catechins. We provide a critical analysis of how these components orchestrate synergistic effects at molecular, cellular, and systemic levels to counteract core pathological processes, including oxidative stress, chronic inflammation, metabolic dysregulation, and gut microbiota imbalance. Our unique contribution lies in integrating the ancient wisdom of food-medicine homology with modern multi-omics and evidence-based research, thereby proposing a refined nutritional intervention paradigm. The review offers critical insights into the convergent actions of these bioactives, their dose-response relationships substantiated by clinical meta-analyses, and the emerging role of gut microbiota-derived metabolites. Furthermore, this review also explores the emerging evidence for synergistic interactions among these key bioactives, proposing that their combined use may yield amplified and more network-based protective effects against chronic diseases through complementary mechanisms, aims to develop integrated prevention strategies targeting both cardiometabolic and neurodegenerative diseases. The integrated prevention strategies systematically connect mechanistic insights into bioactive compounds, evaluates the strength of clinical evidence, and examines the implications for regulatory standards and societal acceptance, thereby bridging the gap between basic science, clinical application, and public health policy. The “mechanism-to-evidence-to-regulation” framework in this review links molecular insights with clinical validation and regulatory implications, offering a holistic perspective rarely addressed in existing literature. Full article

Against the backdrop of the continuous expansion of the global aquaculture industry and the growing demand for high-quality feed protein, the development of sustainable alternative protein sources to fishmeal is crucial. Cottonseed protein, particularly cottonseed protein concentrate, has emerged as a highly promising plant-based alternative raw material due to its high protein content and cost advantages. This review systematically evaluates the application effects, challenges, and mechanisms of action of cottonseed protein in fish feed. Core analysis indicates that the primary limiting factor of cottonseed protein is the antinutritional factor free gossypol. High-level replacement (typically >30%) of fishmeal can inhibit fish growth, reduce protein deposition, and impair intestinal health. These adverse effects are closely associated with the downregulation of the hepatic mTOR signaling pathway—a central regulator of protein synthesis and cell growth—shifting the organism’s energy allocation from growth to stress adaptation. Furthermore, the unique fatty acid profile of cottonseed protein may exacerbate energy metabolism imbalance. To overcome gossypol toxicity, physical, chemical, and biological detoxification technologies have been widely applied. Among these, biological methods (such as Bacillus subtilis fermentation and CotA laccase-catalyzed degradation) are particularly outstanding, not only efficiently removing gossypol (removal rate > 90%) but also degrading macromolecular proteins into more digestible and absorbable small peptides and amino acids, significantly enhancing the nutritional value of cottonseed protein. Although the application prospects for cottonseed protein are broad, gaps remain in current research, particularly concerning the deeper metabolic pathways, nutrient utilization efficiency, and long-term impacts on metabolic homeostasis of detoxified cottonseed protein in fish. Future research needs to employ molecular nutrition and multi-omics technologies to elucidate its metabolic mechanisms and optimize detoxification processes and precision feeding strategies. Glandless cottonseed varieties, which fundamentally address the gossypol issue, are considered the most transformative development direction. Through continuous technological innovation, cottonseed protein is expected to become a core feed protein ingredient promoting the sustainable development of the global aquaculture industry. Full article

Wheat productivity and seed quality are often constrained by nutrient imbalances and environmental stress, which can be mitigated through biostimulants and nanofertilisers. This study evaluated the effects of foliar applications of nanoparticulate sulphur (SNP) and hydrolysed amino acids (AAs) on wheat agronomic performance and seed quality under contrasting environmental conditions in Paraná, Brazil, during the 2022 and 2023 growing seasons. The experiment was conducted in four environments, using a randomised block design, with a 5 × 2 factorial scheme and four replications. Parameters included grain yield, yield components, and physiological and nutritional seed traits. SNP positively influenced the number of grains per ear and spikes per metre, with quadratic responses peaking at 1.048 kg ha⁻¹ for SNP and 0.347 kg ha⁻¹ for S, respectively. However, AAs showed no significant effects, likely due to favourable climatic conditions and high soil fertility. Regarding seed quality, a positive response in seed vigour was observed at 2 kg ha⁻¹ SNP in one environment, while other parameters showed no consistent improvement. Principal component analysis indicated that environment and soil fertility were the main sources of variation in yield and seed quality. Overall, foliar SNP and AA applications did not markedly enhance wheat performance under non-stressful conditions. Full article

Conventional alligator farming, characterized by reliance on chilled fish meat, faces significant challenges, including risks of bacterial contamination and nutritional imbalances. These issues heighten increasing disease susceptibility and threaten industry sustainability, underscoring the critical need for developing nutrient-dense, low-pathogenicity compound feeds. This study conducted a comparative analysis of newborn Siamese crocodiles fed either chilled fish meat or compound feed formulation. Intestinal microbial samples from both cohorts underwent 16S rRNA gene high-throughput sequencing to evaluate differences in microbial composition, diversity, and predicted functionality. The compound feed, specifically formulated for this investigation, possessed the following nutritional composition: crude protein 52.42%; digestible crude protein/digestible energy 16 mg/kcal; crude fat 12.31%; ash 17.42%; crude fiber 0.45%; starch 7.69%; digestible energy 3450 kcal/kg; lysine 3.66%; threonine 1.92%; methionine 1.27%; arginine 3.07%; total essential amino acids 22.97%; calcium 2.51%; total phosphorus 1.8%; available phosphorus 0.98%. Bioinformatics analysis revealed that the compound feed group exhibited numerically higher richness and alpha diversity indices within the intestinal microbiota compared to the chilled fish group. The microbial communities in both groups were dominated by the phyla Proteobacteria, Bacteroidetes, Fusobacteriota, and Firmicutes, collectively representing over 50% of the relative abundance. Functional prediction indicated that the compound feed group possessed the highest relative abundance in metabolic pathways associated with cofactor and vitamin metabolism, carbohydrate metabolism, amino acid metabolism, terpenoid and polyketide metabolism, lipid metabolism, and replication and repair. In contrast, the chilled fish group exhibited significant functional alterations in glycan biosynthesis and metabolism, translation, nucleotide metabolism, transcription, and biosynthesis of other secondary metabolites. Histomorphological analysis demonstrated greater villus height and crypt depth in the compound diet group compared to chilled fish group, although no significant differences were observed in crypt depth or the villus-to-crypt depth ratio. Collectively, these findings indicate that the compound feed enhances intestinal microbial diversity and optimizes its functional structure. Furthermore, while no statistically significant difference in small intestinal villus height was detected, the results suggest a potential positive influence on intestinal development. This investigation provides a scientific foundation for compound feed development, supporting sustainable breeding practices for Siamese crocodiles. Full article

Background: The China Diet Balance Index 2022 (DBI-2022), released in 2024, is the latest dietary quality assessment tool developed in alignment with the updated Dietary Guidelines for Chinese Residents (2022). However, its association with hypertension in the Lingnan region—a geographic area distinguished by a unique dietary culture—has not been fully examined. Objective: This study aimed to systematically evaluate the dietary quality of Lingnan residents using DBI-2022 and explore its association with hypertension. Methods: We analyzed cross-sectional data from the 2015 China Adults Chronic Diseases and Nutrition Surveillance, focusing on 2982 Lingnan residents aged 45 years and older. Dietary information was collected via 3 consecutive days of 24-h dietary recalls and food frequency questionnaires, supplemented by standardized anthropometric measurements. We assessed the contribution of specific dietary components to overall quality and investigated the association between DBI-2022 indices and hypertension using multivariable regression models. Results: Among the 2982 participants, 821 (27.5%) were identified with hypertension. The primary dietary imbalances in the Lingnan population were characterized by moderate insufficient consumption (Low Bound Score [LBS] = 40.48) and moderate excessive intake (High Bound Score [HBS] = 22.58), with insufficient intake being the more prominent concern. Cereals, cooking oils, and salt emerged as key contributors to poor dietary quality, whereas soybeans, fruits, adequate water consumption, and dietary diversity were associated with better dietary quality. After adjusting for potential confounders, participants in the highest quartile of Diet Quality Distance (DQD) had significantly higher odds of hypertension (OR = 1.57, 95% CI: 1.05–2.35) compared to those in the lowest quartile. Similarly, the odds were elevated for those with high LBS (OR = 1.88, 95% CI: 1.24–2.87). Conclusions: Dietary insufficiency appears to be a more critical issue than excessive consumption among the Lingnan population. Poor dietary quality, particularly insufficient intake of protective foods, is significantly associated with elevated odds of hypertension. These findings support the applicability of DBI-2022 for regional dietary surveillance and highlight key priorities for targeted nutritional intervention strategies. Full article