Search Results (6,888)

Nitrogen (N) is a key nutrient for upland rice (Oryza sativa L.), and plant growth-promoting rhizobacteria (PGPR) have been investigated as a sustainable strategy to improve plant nutrition and crop performance. This study evaluated the effects of N topdressing and PGPR inoculation on leaf chlorophyll index (LCI), leaf nutrient concentrations, and yield components in upland rice. A field experiment was conducted in a randomized block design (4 × 6 factorial) with four N rates (0, 40, 80, and 120 kg ha⁻¹) and five PGPR strains (Azospirillum brasilense, Nitrospirillum amazonense, Bacillus subtilis, Priestia aryabhattai, and Methylobacterium symbioticum), plus a non-inoculated control. No significant interaction between N rates and PGPR inoculation was observed. Nitrogen increased leaf phosphorus (P), potassium (K), and magnesium (Mg) concentrations and panicle number; however, it also increased unfilled grains, reduced grain weight, and did not affect grain yield. Azospirillum brasilense increased LCI by 25.7%. Bacillus subtilis and A. brasilense increased leaf N, K, Mg, copper (Cu) and manganese (Mn) concentrations. Azospirillum brasilense, B. subtilis, N. amazonense, and P. aryabhattai reduced unfilled grains, increased grain weight and grain yield by up to 10.7%, whereas M. symbioticum did not differ from the control in grain yield. Under the conditions of this study, nitrogen was not limiting for grain yield, and all strains, except M. symbioticum, were associated with increases in grain yield and changes in plant nutritional status. Full article

Observing fluctuations in blood sugar during competitive events yields significant data regarding the metabolic demands placed upon athletes. This investigation sought to delineate the glycemic characteristics of top-level female soccer players throughout official matches. A total of ten elite women’s soccer players (age: 27.2 ± 3.8 years; BMI: 21.7 ± 1.5 kg/m²) from the same team had their interstitial glucose (iG) levels recorded via continuous glucose monitoring (CGM) throughout two distinct match cycles. External physical workloads were captured using global positioning systems. The athletes were categorized by their playing role, as starters or bench players, and the observation window was partitioned into four segments: night-time, pre-match, match, and post-match. Data indicated a between-subject coefficient of variation (CV) of 13% and a within-subject CV of 17%. Starting players showed elevated variability (16% between; 20% within) relative to bench players (9% and 13%). While temporal factors remained stable, playing status influenced iG significantly (F = 5.44, p = 0.006, ηp² = 0.44). Specifically, starters experienced higher iG during competition versus night (+26.5 mg/dL, p = 0.001), pre-match (+22.2 mg/dL, p = 0.002), and post-match (+25.9 mg/dL, p = 0.004). These findings suggest that CGM may assist staff in developing tailored nutritional interventions, given the wide range of individual responses found in this unexplored field. Full article

Champereia manillana (Bl.) Merr. var. longistaminea is an evergreen small tree. It belongs to the genus Champereia Griff. (Opiliaceae), and its tender leaves or flower buds can be eaten. It also has important medicinal and nutritional values. Wild populations of C. manillana are small and has a phenomenon of deforestation. Market development is hindered by propagation constraints, including low seed germination rates and poor rooting of cuttings. Standardized cultivation protocols are currently lacking. This paper systematically reviews the current status of propagation and cultivation research on C. manillana and analyzed the primary challenges. Recent research indicated that seed germination obstacles had been preliminarily overcome, and 50% shading was identified as the optimal cultivation condition. However, challenges remain, including slow growth, lack of standardized water and fertilizer management, and unclear molecular mechanisms regulating development. Future research should focus on improving vegetative propagation efficiency, elucidating growth mechanisms via multi-omics, and establishing standardized cultivation protocols from breeding to harvest. These strategies are essential for the sustainable utilization of C. manillana resources. Full article

Background/Objectives: Both adiposity and nutritional–inflammatory status influence glucose metabolism; however, their longitudinal associations with glycemic changes in non-diabetic populations remain unclear. We examined the independent, interactive, and joint associations of body mass index (BMI) and prognostic nutritional index (PNI) with the 3-year change in HbA1c (ΔHbA1c). PNI, a composite marker of serum albumin and peripheral lymphocyte count, reflects both protein nutritional status and systemic immune competence. We hypothesized that BMI and PNI would each independently predict ΔHbA1c and that their joint profiling would identify higher-risk subgroups. Methods: A total of 9414 non-diabetic adults from the Shanghai Suburban Adult Cohort were included. Participants with diabetes at baseline (defined as fasting plasma glucose ≥ 7.0 mmol/L, 2-h post-load glucose ≥ 11.1 mmol/L, HbA1c ≥ 6.5%, or self-reported physician diagnosis of diabetes or use of glucose-lowering medications) were excluded. BMI was measured, and PNI was calculated as serum albumin + 5 × lymphocyte count. ΔHbA1c was assessed over a 3-year period. Multivariable linear regression, interaction testing, and joint stratification were performed. Covariate selection was guided by prior biological plausibility, and model adequacy was evaluated using the Akaike Information Criterion (AIC). Results: Both BMI (β = 0.013% per kg/m², 95% CI: 0.011–0.016, p < 0.001) and PNI (β = 0.002% per unit, 95% CI: 0.000–0.004, p = 0.019) were independently and positively associated with ΔHbA1c. No significant interaction was observed (p = 0.431). High BMI (≥24 kg/m²) was associated with glycemic worsening irrespective of PNI level (β ≈ 0.075%, p < 0.001). Among normal-weight individuals, higher PNI was associated with a modest increase in ΔHbA1c (β = 0.031%, p = 0.007). Conclusions: Although the absolute effect sizes were modest at the individual level, BMI was consistently and independently associated with glycemic deterioration therefore, even small per-unit increases may translate into meaningful risk at the population level given the high prevalence of overweight and obesity. PNI showed a small positive association, suggesting that in relatively healthy populations a higher PNI may partly capture subtle pro-glycemic factors—such as low-grade inflammation or higher protein intake—rather than representing unambiguous nutritional benefit. The absence of interaction suggests that BMI and PNI act through largely independent pathways. These findings extend prior evidence by demonstrating that PNI provides modest additional glycemic information beyond BMI in non-diabetic community-dwelling adults, particularly among those of normal weight. Full article

The aim of the study was to determine, under field conditions, the effects of O₃, H₂O₂, and fungicide protection on potato late blight severity, SPAD values, tuber yield, and mineral composition, and additionally to assess whether the number of ozone applications modifies selected tuber quality traits. Two complementary field experiments were conducted in 2017 and 2018. In the main experiment, control, fungicide protection, ozone fumigation, and foliar H₂O₂ treatments were compared with respect to late blight severity, SPAD response, yield, and macro- and micronutrient contents in tuber peel and flesh. In the supplementary experiment, single, double, and triple ozonation were compared in relation to starch content, vitamin C concentration, and tuber mineral composition. Fungicide treatment most effectively limited late blight symptoms, particularly at later assessment dates, and was associated with the highest tuber yield. SPAD values, yield, and several mineral traits were strongly dependent on the study year, indicating a major contribution of environmental conditions. The response to O₃ and H₂O₂ was selective and less stable than that observed under fungicide protection. In the supplementary experiment, the number of ozone applications did not significantly affect starch content. Vitamin C concentration depended mainly on the study year, whereas tuber mineral composition depended mainly on year and tissue type. The results indicate that, under field conditions, fungicide protection remained the most effective option for limiting late blight and achieving the highest tuber yield, whereas O₃ and H₂O₂ should be regarded as factors capable of modifying selected plant and tuber traits, but not as direct substitutes for standard chemical protection. Full article

Muscle vulnerability occurs at both extremes of the human lifespan, although its biological significance differs substantially between developmental growth and late-life decline. During childhood and adolescence, insufficient muscle accretion reflects disruption of physiological anabolic trajectories driven by inadequate energy availability, inflammatory burden, endocrine imbalance, or disease-associated catabolism. In older adults, muscle deterioration is characterized by anabolic resistance, neuromuscular remodeling, chronic low-grade inflammation, and hormonal decline, culminating in sarcopenia and loss of functional independence. The absence of harmonized diagnostic frameworks across age groups limits direct translational extrapolation. A lifespan-informed perspective distinguishing growth-supportive from function-preserving nutritional approaches is, therefore, required. This narrative review examines how major classes of nutritional bioactive interact with molecular pathways regulating skeletal muscle homeostasis in fragile populations across the lifespan. The analysis encompasses energy adequacy, protein quantity and quality, amino acid-dependent anabolic signaling, vitamin D status, lipid-derived mediators, redox-modulating phytochemicals, and micronutrients supporting mitochondrial bioenergetics. In pediatric contexts, nutritional interventions primarily aim to restore anabolic permissiveness within a structurally intact growth environment. In aging individuals, strategies focus on mitigating anabolic resistance through optimized protein intake, correction of micronutrient insufficiencies, and integration with resistance exercise to preserve functional capacity. This narrative review emphasizes the need to distinguish mechanistic rationale from clinically validated interventions, as improvements in molecular pathways do not consistently translate into meaningful functional outcomes. Full article

Background: The 2025–2030 Dietary Guidelines for Americans recommend that 6–12-month-old infants receive 11 mg iron/day. The contribution of iron-rich foods in meeting guidelines is unclear. Objectives: The aims were to: (1) determine the contribution of iron-fortified cereal, infant formula and heme-iron sources to infants’ total dietary iron intake; (2) examine differences in iron adequacy by milk-feeding type; and (3) identify feeding patterns associated with meeting daily iron requirements through dietary sources. Methods: Mothers of infants were recruited from a pediatric clinic and 24 h feeding recalls were conducted to estimate infants’ iron intake. Infants’ milk-feeding types were: breastmilk only (BF), mixed (MF), or infant formula only (FF). Main outcomes were: meeting/not meeting daily iron requirement (11 mg) overall and by milk-feeding type; contribution of iron-fortified infant cereal, formula and meat to daily iron intake. Descriptive statistics, bivariate chi-square tests, and multivariate logistic regression analyses were conducted. Results: Most participants identified as African American or Hispanic (76%) and were enrolled in the Special Supplemental Nutrition Program for Women, Infants, and Children (84%). Thirty-nine percent consumed < 11 mg iron/day from dietary sources. By milk-feeding type, inadequate iron intake was significantly higher among the BF (72%) and MF (74%) groups vs. the FF group (24%, p < 0.05). Iron-fortified cereals were consumed by 46% of infants and provided a median iron intake of 6.75 mg. Among the FF group, infant formula provided 63% of the daily iron requirement. Conclusions: Inadequate dietary iron intake is common. Iron-fortified cereal is an important dietary iron source. Future research is warranted to understand the relations among infants’ daily iron intake, iron sources (heme vs. non-heme), and iron status. Full article

Background and Objectives: Early risk stratification remains challenging in patients undergoing left ventricular assist device (LVAD) implantation. Red cell distribution width (RDW) and serum albumin reflect systemic stress and nutritional reserve; their ratio (RDW-to-albumin ratio, RAR) may provide a simple preoperative index. We evaluated whether preoperative RAR is associated with early mortality after LVAD implantation. Materials and Methods: We conducted a retrospective cohort study of LVAD recipients (2019–2025). RAR was calculated as RDW (%) divided by albumin (g/dL) from preoperative blood tests obtained 24–48 h before surgery. The primary endpoint was in-hospital mortality. The secondary endpoint was 90-day survival. In-hospital mortality was analyzed using logistic regression with parsimonious adjustment for INTERMACS high-risk status (profiles 1–2 vs. 3–7); penalized regression was used to reduce small-sample bias. Discrimination was assessed using receiver operating characteristic (ROC) analysis. Ninety-day survival was evaluated using Cox proportional hazards models. Results: Forty-seven patients were included (37 survivors; 10 in-hospital deaths). Higher RAR was associated with increased odds of in-hospital mortality and remained significant after adjustment for INTERMACS high-risk status (OR 1.68, 95% CI 1.04–2.90). INTERMACS high-risk status was strongly associated with in-hospital mortality (OR 17.89, 95% CI 3.19–138.07). RAR demonstrated good discrimination for in-hospital mortality (AUC 0.801, 95% CI 0.648–0.955). For 90-day survival, RAR showed a borderline association in unadjusted analysis (HR 1.28, 95% CI 0.98–1.68) and was not significant after adjustment (HR 1.20, 95% CI 0.89–1.63). Conclusions: In this small single-center cohort, preoperative RAR was independently associated with in-hospital mortality after LVAD implantation. These findings should be considered hypothesis-generating and require external validation. Full article

Vitamin K is a fat-soluble vitamin essential for the activation of vitamin K-dependent proteins involved in coagulation and other physiological processes. Neonates are particularly vulnerable to vitamin K deficiency due to limited placental transfer, low hepatic stores, immature liver function, and insufficient dietary intake, especially in exclusively breastfed infants. This review summarizes the biochemistry and pharmacokinetics of vitamin K, focusing on their role in the pathogenesis of late vitamin K deficiency bleeding (VKDB), including intracranial hemorrhage in early infancy. The limitations of conventional coagulation tests are discussed, highlighting the importance of functional biomarkers such as PIVKA-II (Proteins Induced by Vitamin K Absence or Antagonist-II) for the early detection of subclinical deficiency. Despite effective prophylaxis at birth, late VKDB cases still occur, likely due to declining vitamin K levels over time and nutritional factors. These findings underscore the need for prolonged vitamin K supplementation following adequate prophylaxis at birth, particularly to protect high-risk newborns from late VKDB. Strategies may include vitamin K-containing multivitamin supplementation in preterm infants, as well as daily oral vitamin K supplementation (150 µg/day) in exclusively breastfed infants, in order to ensure adequate vitamin K status during early infancy. Full article

Background/Objectives: Unhealthy dietary behaviors and suboptimal oral hygiene practices remain common among Italian children, potentially affecting both nutritional and oral health. Dental caries, a preventable yet highly prevalent condition in pediatric populations, has a multifactorial etiology in which lifestyle factors play a key role. This study aimed to assess the prevalence of dental caries, dietary habits, and oral hygiene behaviors in school-aged children in Lombardy, and to identify factors associated with prevalent caries status. Methods: A cross-sectional study was conducted on 307 schoolchildren aged 9–10 years from ten schools in Northern Italy. Oral health status was evaluated through the plaque index and the DMFT/dmft index during school-based dental examinations. Dietary habits, lifestyle, and oral hygiene practices were collected through structured questionnaires. A mixed-effects logistic regression model was developed to explore potential associations between variables and prevalent caries status. Results: The dietary patterns, weight status, oral hygiene behaviors, and oral health conditions were generally consistent with the national data. Higher plaque index, skipping breakfast, consuming mid-morning snacks, and parental reports of previous caries experiences were retained in the final model. Internal validation suggested reasonable discriminatory ability overall, whereas calibration shows heterogeneity across schools. Conclusions: The findings highlight suboptimal dietary and oral hygiene behaviors among Lombardy schoolchildren and confirm their association with dental caries. Lifestyle-related factors, particularly oral hygiene practices and eating patterns, showed a relevant association with prevalent caries status in the analyzed sample. These results underscore the need for targeted preventive strategies integrating nutritional education and oral health promotion in pediatric populations. Full article

Background/Objectives: Current management of Hereditary Angioedema (HAE) predominantly focuses on acute attack control and prophylaxis. However, the cumulative “inter-attack” burden driven by chronic low-grade inflammation and its impact on physical frailty remain under-investigated. This preliminary, proof-of-concept study proposes a novel composite score, the “Hereditary Angioedema Frailty and Inflammation Score” (HAE-FIS), to quantify this inter-attack frailty-like inflammatory burden. Methods: In this single-center retrospective study, 46 patients with C1-inhibitor deficiency were evaluated. The HAE-FIS (range 0–5) was constructed using five routinely available biomarkers reflecting inflammation and nutritional status: C-reactive protein (CRP), albumin, hemoglobin, body mass index (BMI), and inter-attack symptom burden. Patients were categorized based on annual attack frequency (Infrequent ≤ 6 vs. Frequent > 6 attacks/year). Results: The median diagnostic delay was 12.0 years. Patients with frequent attacks had significantly higher median HAE-FIS scores compared to the infrequent group (p = 0.008). Component analysis revealed that ‘High CRP’ (46.4% vs. 16.7%; p = 0.039) and ‘Low BMI’ (25.0% vs. 0.0%; p = 0.032) were significantly more prevalent in patients with frequent attacks. Notably, low BMI was observed exclusively in the frequent attack group, suggesting a specific phenotype at risk for sarcopenia. While multivariable logistic regression was constrained by the sample size, the annual attack count emerged as the strongest predictor for a high HAE-FIS score (OR: 1.049; p = 0.070). Conclusions: High attack frequency in HAE is associated with a measurable cumulative systemic burden characterized by inflammation and nutritional risk. These findings support the development of an “HAE Rehabilitation” framework integrating functional preservation into long-term management. Full article

Malnutrition—including undernutrition, micronutrient deficiencies and overweight—remains a major public health concern in sub-Saharan Africa, largely driven by food insecurity. Edible insects have been proposed as a sustainable, nutrient-dense dietary alternative with potential to improve food security and nutritional outcomes. This review analyses studies published until January 2024 in PubMed and Google Scholar assessing the prevalence, acceptability and nutritional impact of insect-based diets in sub-Saharan Africa. Thirteen original studies, predominantly qualitative, conducted in 8 of 47 countries in the region, met inclusion criteria. Two reviews provided additional evidence. Most studies focused on acceptability, which was strongly influenced by cultural and religious norms. Higher acceptance was observed among older individuals and those with lower educational attainment, while younger and more urbanized populations showed greater reluctance. Reported motivations for consumption included tradition, taste and perceived nutritional value. Some studies highlighted potential health risks related to food safety and the need for improved regulatory frameworks. The available nutritional analyses showed that edible insects are rich in protein and essential micronutrients, particularly iron and zinc, suggesting their potential to address common deficiencies. Although evidence on long-term nutritional impact remains limited, current findings support the feasibility and potential public health relevance of promoting insect-based diets in low-income settings. Full article

Background: Body mass index (BMI) is widely used as a proxy of nutritional status and related lifestyle risk patterns in public health, yet it does not capture body composition–related heterogeneity in cardiometabolic risk. Evidence on whether a more detailed body composition assessment improves population-level screening efficiency remains inconsistent, particularly in Central European populations. Methods: We conducted a cross-sectional analysis of 868 Hungarian adults participating in a nationwide mobile screening program. Locally weighted regression identified sex-specific BMI inflection points for cardiometabolic risk. Stratified receiver operating characteristic (ROC) analyses compared BMI with bioelectrical impedance-derived parameters across five outcomes. Cost- and time-effectiveness of scalable screening strategies were modeled at the population level. Results: Cardiometabolic risk increased at BMI levels below current WHO thresholds (females: 21.8–22.3 kg/m²; males: 23.8–24.3 kg/m²). Overall, body composition parameters did not outperform BMI in the full population. Subgroup-specific differences were observed, particularly among men with BMI 24–36 kg/m² for atherosclerosis risk, suggesting limited and outcome-specific added value rather than broad superiority over BMI. Together, non-linear risk patterns, stratified performance, and population-level modeling converged on mid-range BMI intervals (females: 22–30 kg/m²; males: 24–30 kg/m²) as likely screening windows of phenotypic heterogeneity. Within these ranges, targeted InBody assessment may help refine risk assessment for selected individuals. A mixed screening strategy covering 52% of the population would cost 178.4% of BMI-only screening, while reducing throughput by 24.3%. Conclusions: Population-specific BMI thresholds may more accurately reflect early deviations in nutritional and cardiometabolic risk than current universal cutoffs. BMI remains a useful first-line marker, and body composition assessment may add complementary information in selected BMI ranges. Overall, these findings support a potentially useful, subgroup-specific screening approach, but the modeled cost and time trade-offs should be considered hypothesis-generating and require further validation. Full article

Background/Objectives: Preterm birth (PTB) is a major public health concern worldwide, which may lead to detrimental maternal and neonatal outcomes. Maternal nutritional status, gestational weight gain (GWG), and lifestyle factors are potentially modifiable determinants of adverse pregnancy outcomes. This study examined the association between PTB and maternal GWG and assessed whether maternal dietary habits and lifestyle factors were related to GWG in women delivering preterm versus at term. Methods: A retrospective case–control study was conducted at a tertiary center in Hungary (MANOR Study, 2019). The case group included n = 100 women with PTB, while n = 200 matched term deliveries served as controls (1:2 ratio). Data were collected using a self-administered questionnaire and medical records. Pre-pregnancy body mass index (BMI) was categorized using standard definitions, while GWG was classified as inadequate, recommended, or excessive according to the US 2009 Institute of Medicine guidelines. A 7-item dietary index score was calculated based on gestational dietary habits. Results: Pre-pregnancy BMI distribution did not considerably differ between groups (p > 0.05); over one-third of women in both groups were overweight or had obesity (38.7% vs. 36.7%). Previous PTB (p < 0.001) and gestational hypertension (GHT) (p = 0.003) were more common among current PTB cases, while smoking, alcohol consumption, and gestational diabetes mellitus (GDM) showed negligible differences (p > 0.05)—28.0% of cases, and 34.5% of controls were classified as having healthy dietary habits, based on the dietary index score calculated. Inadequate GWG was more prevalent among PTB cases (49.0% vs. 26.8%), whereas excessive GWG was less frequent among cases (21.9% vs. 38.4%). Being within the recommended GWG range and the manifestation of gestational hypertension were associated with lower (aOR: 0.39; 95% CI: 0.18–0.87; p = 0.020) and higher (aOR: 3.43; 95% CI: 1.44–8.19; p = 0.005) odds of PTB, respectively. Conclusions: Inadequate GWG was more common in PTB, while excessive GWG was more frequent in term pregnancies. Fast-food consumption was associated with excessive GWG among term births. Optimizing GWG and improving maternal diet quality should be included as key, cross-cutting interventions targeting the improvement of antenatal care. Full article

Background/Objectives: Malnutrition in cancer adversely affects treatment outcomes and survival. Early intervention through oral nutritional supplements (ONSs) and dietary counseling can improve outcomes. This study evaluated the evolution of nutritional and morphofunctional parameters over three months in malnourished patients with cancer undergoing a comprehensive nutritional support program comprising dietary counseling, physical activity, and a novel concentrated high-protein, high-calorie ONS (cHPHC-ONS) with a high intrinsic leucine content. Methods: A prospective, observational, multicenter cohort study was conducted across 18 public hospitals in Spain. Two hundred thirty malnourished patients with cancer were enrolled: 147 naïve (no ONS treatment in the last three months) and 83 non-naïve (who transitioned to cHPHC-ONS after inadequate response to initial ONSs). Nutritional status was assessed using Global Leadership Initiative on Malnutrition (GLIM) criteria and morphofunctional parameters via bioelectrical impedance analysis, nutritional ultrasound, handgrip strength, the Timed Up and Go (TUG) test, and analysis of biochemical parameters. Results: After three months, 23.8% achieved normal GLIM nutritional status (p < 0.0001), with a greater improvement seen in non-naïve patients (28.4%, p < 0.0001). Weight loss ceased in 42.6% (p < 0.0001). and inflammation resolved for 10.3% (p = 0.0015). Non-naïve patients experienced a significant increase in fat-free mass index (p = 0.0159), appendicular skeletal muscle index (p = 0.0248), and rectus femoris cross-sectional area (p = 0.0016). Muscle strength increased significantly by +1.7 kg (p = 0.0025), and TUG test time decreased by 1.13 s (p = 0.0003) overall. Conclusions: The comprehensive nutritional support program—including a novel cHPHC-ONS, along with dietary and physical activity guidance—significantly improved the nutritional and morphofunctional status of malnourished patients with cancer, with benefits particularly evident in non-naïve individuals. Limitations: Observational design, no control group, short follow-up, and unadjusted non-multivariable comparisons, limiting causal inference. Full article