Whole-body and regional raw bioelectrical impedance analysis (BIA) parameters have been used to develop lean soft tissue estimation prediction models. Still, no regional fat mass (FM) assessment models have been provided. Hence, we aimed to develop and validate BIA-derived equations to predict regional FM against dual-energy X-ray absorptiometry (DXA) in healthy adults. One hundred and forty-eight adults (77 females) were included in this cross-sectional investigation. DXA assessed whole-body and regional FM, and raw bioelectrical parameters of distinct body regions were measured using a 50 kHz phase-sensitive BIA analyzer. BIA-derived equations were developed for each sex using a stepwise multiple linear regression approach in 2/3 of the sample and cross-validated in the remaining sample. The BIA-derived equations exhibited moderate to very strong relationships (p < 0.001) with DXA-measured FM of all body regions in females (r=0.650 to 0.907) and males (r=0.401 to 0.807). Also, for all the models, no significant deviation from linearity was found (p>0.10). Agreement analyses revealed no associations between the differences and the means of the predicted and DXA-derived FM. However, the limits of agreement were large, with individual errors exceeding 50% in females and 70% in males. While the new BIA-derived equations provide a valid estimate of regional FM in middle-aged healthy adults at the population level, demonstrating a cost-effective alternative to DXA for assessing regional FM, caution is advised when applying these equations for individual-level analysis.

There has been concern regarding the consumption of fruit juices because of the high levels of naturally occurring sugars they contain, which could rapidly elevate glycaemic response and increase the risk of cardiometabolic diseases. We conducted two trials in which each volunteer ingested (1) white bread with 200 mL of two types of orange juice prepared from ‘Moro’ and ‘Pera’ varieties (MOJ and POJ) – the former containing anthocyanins – and the same juices alone; and (2) 200 mL of POJ or MOJ followed by a sandwich made with white bread, plus light cheese or butter, and also the same juices alone. Capillary blood was collected over 120 minutes, and glucose and insulin levels were analysed. In the crossover clinical design with healthy volunteers, we observed that both orange juices do not increase blood glucose and insulin, even when co-consumed with other typical breakfast foods in Brazil. In conclusion, orange juice does not elevate postprandial glycaemic responses to the meal while providing additional sugars and nutrients.

Studies on longitudinal associations between diet quality and lipid and amino acid metabolism in children and adolescents are limited. We studied associations between diet quality and serum markers of lipid and amino acid metabolism in the Physical Activity and Nutrition in Children (PANIC) study. These analyses included 403 children aged 6–9 years at baseline, 360 re-examined two years later at age 9–11 years, and 219 eight years later at age 15–17 years. Food intake was recorded over four days, and diet quality assessed using the Finnish Children Healthy Eating Index (FCHEI). Fasting serum fatty acids, amino acids, apolipoproteins, and lipoprotein particle sizes were analyzed via nuclear magnetic resonance spectroscopy. Linear mixed-effects models, adjusted for sex, age, body fat percentage, pubertal stage, and physical activity, were used to analyze the associations. Better diet quality was linked to increased serum polyunsaturated fatty acids and reduced saturated and monounsaturated fatty acids, alanine and very low-density lipoprotein (VLDL) particle size. Consuming more vegetables, fruits, berries, vegetable oils and margarine with at least 60% fat, fish, and whole grains associated with higher serum polyunsaturated fatty acids and lower saturated fatty acids and smaller VLDL particles. Conversely, consuming higher-fat dairy products and sugary products associated with higher saturated and monounsaturated fatty acids, branched-chain and aromatic amino acids, and larger VLDL particles. A diet rich in fruits, vegetables, unsaturated fats, and fiber, with reduced processed meat and sugar consumption, promotes favorable metabolic changes relevant to cardiometabolic health.

Low vitamin D associated with high parathyroid hormone (PTH) is commonly reported in the context of HIV infection. We determined the association between total 25-hydroxyvitamin-D [25(OH)D] and PTH in adolescents living with HIV, in Zambia and Zimbabwe. Adolescents (11-19 years) perinatally-infected with HIV and established on antiretroviral therapy (ART) for ≥6 months were recruited into a cross-sectional study. Socio-demographic and clinical characteristics were recorded, anthropometry measured, and fasted serum concentrations of 1,25-dihydroxyvitamin-D (1,25(OH)2D), total 25(OH)D and intact PTH measured. The association between total 25(OH)D and PTH was examined using natural cubic spline regression modelling. 842 participants (female: 53.2%) with median age 15.5 (IQR:13.2-17.9) years were enrolled. Median ART duration was 9.8 [IQR:6.3-12.3] years and 165/841 (19.6%) had an HIV viral load >60copies/ml. Stunting (HAZ score<-2) and underweight (WAZ score<-2) were observed in 29.9% and 30.0% respectively. Three quarters (n=639) reported daily calcium intakes <150mg/day. The mean (SD) concentrations of total 25(OH)D and 1,25(OH)2D were 66.1(16.5) nmol/L and 210.6(70.4) pmol/L respectively, and median PTH level was 4.3 (IQR:3.3-5.5) pmol/L. There was an inverse non-linear relationship between total 25(OH)D and PTH, 25(OH)D levelling-off at 74.6nmol/L (95%CI: 74.5-75.2). Results were consistent in those taking tenofovir disoproxil fumarate (81.7%) and in those who were virally unsuppressed. In this population with extremely low habitual calcium intakes, the lack of association between 25(OH)D and PTH when 25(OH)D exceeded 75nmol/L, potentially suggests levels of 25(OH)D >75nmol/l may need to be achieved to improve bone health; investigation is needed in future research studies.

To assess the relationship between total body fat percentage(TBFP), trunk fat percentage(TFP), and urinary flow rate(UFR).We stratified by age and sex and hypothesize that TBFP and TFP are negatively associated with UFR across all groups.The study utilized data from the National Health and Nutrition Examination Survey (NHANES), which includes a series of nationally representative cross-sectional surveys. The data analyzed in this study included 18-59-year-old females and males who participated in the NHANES surveys conducted between 2011 and 2018. Multivariable-adjusted logistic regression models were used to examine the association between body fat percentages measured by dual-energy X-ray absorptiometry (DXA) scans and UFR.A total of 10,521 participants were included and an increase in total body fat percentage(TBFP) was inversely associated with in UFR (β= -0.013,95% confidence interval[CI]-0.018 to -0.007), Similarly,an increase in trunk fat percentage(TFP)was inversely associated with UFR(β=-0.014,95%CI-0.018 to -0.009).Stratified analyses by gender revealed that among males, an increase in TBFP and TFP was inversely associated with in UFR (β=-0.011, 95% CI -0.019 to -0.004; β=-0.016, 95% CI -0.022 to -0.009), although this association was not observed in the 18-35 age group. Among females, an increase in TBFP and TFP was inversely associated with UFR (β= -0.016, 95% CI -0.023 to -0.008; β= -0.012, 95% CI -0.019 to -0.006), and this association was observed across all age groups.Our study shows that in the population aged 18 to 59, both total body fat and truncal fat accumulation are inversely associated with urinary flow rate. However, the association in males under 35 is not significant. Future research should delve into the mechanisms behind these gender and age differences to provide a more precise basis for developing targeted prevention and intervention measures.

This study aimed to assess the concordance between different anthropometric indexes in the Global Leaders Initiated Malnutrition Standards (GLIM) and the Geriatric Risk Index (GNRI) for evaluating muscle mass, while also exploring performance-based criteria for GLIM muscle content suitable for elderly patients with intermediate and advanced tumors. A total of 312 patients admitted to Shanghai Tenth People’s Hospital between September 2022 and June 2023 were retrospectively included. Nutritional assessments were conducted using the GLIM framework, employing grip strength, upper arm circumference, and calf circumference as criteria for muscle content evaluation. The diagnostic value of these tools was compared against the GNRI as a reference standard. Among the participants, 127 (40.71%) were diagnosed as malnourished by GNRI, while the GLIM assessments yielded 138 (44.23%), 128 (41.03%), and 162 (51.92%) malnutrition diagnoses based on grip strength, calf circumference, and upper arm circumference, respectively. Both GNRI and GLIM-grip strength were significantly associated with complications and length of hospital stays. Notably, using GNRI as a reference, GLIM-grip strength demonstrated good consistency in diagnosing malnutrition (K value = 0.692, P < 0.001), with calf circumference having the highest diagnostic value. In conclusion, grip strength is a practical and effective performance-based criterion within the GLIM standards and has the potential to enhance malnutrition diagnosis in elderly patients with advanced malignancies, highlighting its relevance in nutritional science.

The primary causes of female mortality often involve diseases related to oxidative stress. Dietary total antioxidant capacity (TAC) evaluates its antioxidant content and potential health effects. This study, registered with PROSPERO (ID: CRD42024427784), explores the association between dietary TAC and women’s health outcomes, including endocrine conditions with gynecological implications, obstetric outcomes, gynecological conditions, and oncological diseases related to the female reproductive system. We conducted a systematic search in MEDLINE (via PubMed), EMBASE, LILACS, and CINAHL for observational studies published up to February 2024 that explored the relationship between dietary TAC and these health conditions. Data were analyzed using RevMan 5.4 software. Nineteen studies met the eligibility criteria (sample sizes: 64 to 3,209 women) and examined various conditions, including neoplasms (breast, endometrial, and ovarian), bacterial vaginosis, menopause, polycystic ovary syndrome (PCOS), pre-eclampsia (PE), gestational diabetes mellitus (GDM), miscarriage, infertility, and inflammation and oxidative stress markers. The meta-analysis identified a significant association between dietary total antioxidant capacity (TAC), measured in vitamin C equivalents, and breast cancer, revealing that women with the disease had a lower dietary TAC due to reduced antioxidant intake. Mixed results were found for endometrial cancer, while higher TAC levels were associated with a lower risk of PCOS and infertility. Among postmenopausal women, higher TAC correlated with fewer symptoms such as sleep issues and anxiety. In gestational conditions, higher dietary TAC was linked to a lower risk of miscarriage, GDM, and PE. Twelve of the nineteen studies demonstrated significant associations between dietary TAC and the outcomes of interest.

High intake of dietary advanced glycation end products (AGEs), could induce oxidative stress, inflammation, and the gut microbiota dysbiosis, processes that play a major role in the development of functional gastrointestinal disorders (FGIDs). There is limited data on the association between AGEs intake and FGIDs. Therefore, the current study aimed to examine the association of AGEs with FGIDs in Iranian adults. In a cross-sectional analysis under the framework of the Isfahan functional disorders (ISFUN) study, data on 1892 Iranian apparently healthy adults, aged 18 to 65 years were examined. Participants’ dietary intakes were collected using a validated dish-based, 106- item food frequency questionnaire. Dietary AGEs content of 72 food items were measured for all participants. FGIDs was assessed using ROME IV criteria. In total, 38% of subjects had one of the most prevalent upper or lower FGIDs. The mean of AGEs intake was 14690.10±8797.25 (kU/gr). In the fully adjusted model, being in the highest versus lowest tertile of AGEs intake was associated with increased odds of FGIDs (OR= 1.78; 95% CI: 1.01, 3.36). In stratified analysis by sex, males in the highest tertile of AGEs intake showed higher odds of FGIDs than those in the lowest tertile (OR= 2.15; 95% CI: 1.04, 4.45). However, in females, the AGEs intake was not significantly associated with the risk of FGIDs in the fully adjusted model. Higher AGEs intake was significantly associated with increased risk of FGIDs, particularly in men. Further prospective studies are warranted to confirm these findings.

Prior studies have shown that plant-based diets are associated with lower cardiovascular risk. However, these diets encompass a large diversity of foods with contrasted nutritional quality that may differentially impact health. We aimed to investigate the pooled cross-sectional association between metabolic syndrome (MetS), its components, and healthy and unhealthy plant-based diet indices (hPDI and uPDI), using data from two French cohorts and one representative study from the French population. This study included 16,358 participants from the NutriNet-Santé study, 1,769 participants from the Esteban study and 1,565 participants from the STANISLAS study who underwent a clinical visit. The MetS was defined according to the International Diabetes Federation definition. The associations between these plant-based diet indices and MetS were estimated by multivariable Poisson and logistic regression models, stratified by gender. Meta-analysis enabled the computation of a pooled Prevalence Ratio. A higher contribution of healthy plant foods (higher hPDI) was associated with a lower probability of having MetS (PRmen: 0.85; 95% CI: 0.75–0.94, PRwomen: 0.72; 95% CI: 0.67–0.77), elevated waist circumferences and elevated blood pressure. In women, a higher hPDI was associated with a lower probability of having elevated triglycerides, low HDL-cholesterolemia and hyperglycemia; and a higher contribution of unhealthy plant foods was associated with a higher prevalence of MetS (PRwomen: 1.13; 95% CI: 1.01–1.26) and elevated triglycerides. A greater contribution of healthy plant floods was associated with protective effects on metabolic syndrome, especially in women. Gender differences should be further investigated in relation to the current sustainable nutrition transition.

The rising incidence of neurodegenerative diseases in an ageing global population has shifted research focus toward modifiable risk factors, such as diet. Despite potential links between dietary patterns and brain health, inconsistencies in neuroimaging outcomes underscore a gap in understanding how diet impacts brain ageing. This study explores the relationship between three dietary patterns—Mediterranean (MeDi), Dietary Approaches to Stop Hypertension (DASH), and Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND)—and cognitive outcomes as well as brain connectivity. The study aimed to assess the association of these diets with brain structure and cognitive function, involving a middle-aged healthy group and an older cohort with subjective cognitive decline (SCD). The study included cognitive assessments and diffusion-weighted MRI data to analyse white matter microstructural integrity. Participants comprised 55 older individuals with SCD (54.5% female, mean age = 64) and 52 healthy middle-aged individuals (48.1% female, mean age = 53). Age inversely correlated with certain cognitive functions and global brain metrics, across both cohorts. Adherence to the MeDi, DASH, and MIND diets showed no significant cognitive or global brain metric improvements after adjusting for covariates (age, education, BMI). Network-based statistics (NBS) analysis revealed differences in brain subnetworks based on DASH diet adherence levels in the SCD cohort. In the healthy cohort, lower white matter connectivity was associated with reduced adherence to MIND and DASH diets. Ultimately, the study found no strong evidence connecting dietary patterns to cognitive or brain connectivity outcomes. Future research should focus on longitudinal studies and refine dietary assessments.

Studies have demonstrated that the quality and transparency of reporting Clinical Practice Guidelines (CPGs) in healthcare are low. This meta-research aimed to evaluate the adherence of nutrition CPGs for critically ill adults to the reporting RIGHT checklist and its association with the methodological quality assessed by AGREE II, along with other potential publication-related factors. A systematic search for CPGs until December 2024 was conducted. RIGHT and AGREE II were applied. Reporting completeness score was created using the data from the evaluations of whether each broken-down item of the RIGHT. Eleven CPGs were identified, none demonstrated adherence greater than 60% to the RIGHT checklist, and the mean of RIGHT score was 33.5±15.5%. There was a strong correlation between the RIGHT score and AGREE II (r=0.886). A development CPGs team including methodologist and/or statistician was associated with a higher RIGHT score (48.9±4.5 versus 27.2±11.0) and it was higher in CPGs recommended or recommended with modifications by AGREE II in comparison to those not recommended (50.1±4.6 versus 37.7±8.1 versus 17.0±6.8), and in those with acceptable and moderate compared to those with low methodological quality (50.1±4.6 versus 32.2±14.5 versus 19.3±6.2). It was also related to the language of publication, being higher in those published in English. The reporting completeness in CPGs for critically ill adults was low, with a strong correlation with the methodological quality. High values of reporting completeness scores were observed between CPGs recommended by AGREE II (with moderate or acceptable quality) and in those including a methodologist/statistician in the development team.

Substantial changes resulting from the interaction of environmental and dietary factors contribute to an increased risk of obesity, while their specific associations with obesity remain unclear. Identify inflammation-related dietary patterns (DPs) and explore their associations with obesity among urbanized Tibetan adults under significant environmental and dietary changes.Totally, 1826 subjects from the suburbs of Golmud City were enrolled in an open cohort study, of which 514 were followed up. Height, weight, and waist circumference were used to define overweight and obesity. DPs were derived using reduced rank regression with 41 food groups as predictors and hs-CRP and prognostic nutritional index as inflammatory response variables. Altitude was classified as high or ultra-high. Two DPs were extracted. DP-1 was characterized by having high consumptions of sugar-sweetened beverages, savory snacks, and poultry, and a low intake of tsamba. DP-2 had high intakes of poultry, pork, animal offal, and fruits, and a low intake of butter tea. Participants in the highest tertiles (T3) of DPs had increased risks of overweight and obesity (DP-1: OR=1.37, 95% CI: 1.07, 1.77; DP-2: OR=1.48, 95% CI: 1.18, 1.85) than those in the lowest tertiles (T1). Participants in T3 of DP-2 had an increased risk of central obesity (OR=2.25, 95% CI: 1.49, 3.39) than those in T1. The positive association of DP-1 with overweight and obesity was only significant at high altitudes, while no similar effect was observed for DP-2. Inflammation-related DPs were associated with increased risks of overweight and/or obesity.

The therapeutic effects of probiotics in patients with traumatic brain injury (TBI) remain unclear. This study aimed to investigate the effects of probiotic supplementation on cell adhesion molecules, oxidative stress, and antioxidant parameters in TBI patients. This randomized, double-blind, placebo-controlled trial included 46 TBI patients who were randomly assigned to receive either a probiotic supplement (n = 23) or a placebo (n = 23) for 14 days. The probiotic capsule contained four strains of Lactobacillus (L. casei, L. bulgaricus, L. rhamnosus, L. acidophilus), two strains of Bifidobacterium (B. longum, B. breve), and Streptococcus thermophilus. Serum levels of intercellular adhesion molecule (ICAM)-1, vascular cell adhesion molecule (VCAM)-1, pro-oxidant antioxidant balance (PAB), malondialdehyde (MDA), nitric oxide (NO), total antioxidant capacity (TAC), and arylesterase (ARE) activity were measured at the beginning and end of the trial. Dietary intakes of patients were also recorded at the beginning and end of the trial. At the end of the study, there were no significant changes in ICAM-1, VCAM-1, PAB, MDA, NO, TAC, and ARE levels. However, patients who received probiotic supplements had significantly increased dietary intakes of energy, macronutrients, vitamin E, zinc, copper, and selenium compared with the placebo group. This study provides evidence that probiotic supplementation for 14 days in TBI patients has beneficial effects on dietary intake. However, it did not affect serum levels of cell adhesion molecules, oxidative stress, or antioxidant parameters. These findings should be considered preliminary, and further research is needed to evaluate long-term and clinical outcomes.

Anaemia continues to be a major public health challenge in developing countries, particularly in Sub-Saharan Africa. This study estimated the proportion of anaemia cases that could be potentially prevented among children aged 6-59 months in Togo. Data from the 2017 national Malaria Indicator survey in Togo, the last one conducted to date, was used for this study. Maternal, child and household data were collected using a standard questionnaire administered face-to-face by trained interviewers. Haemoglobin tests were conducted for children and their mothers. A total of 2796 children were included in the analyses. The prevalence of anaemia was 75.0% (95% confidence interval, CI: 72.5-88.0). Factors associated with childhood anaemia were: age [(adjusted prevalence ratio, aPR=1.46 (CI: 1.37-1.56) for 6-23 months and aPR=1.23 (1.14-1.32) for 24-42 months, ref: 43-59 months], a later birth order (≥4th position) [aPR=1.11 (1.03-1.19), ref: 1st-2nd position], malaria in children [aPR=1.30 (1.22-1.38)], maternal age ≤25 [aPR=1.17 (1.08-1.27), ref: ≥35 years], maternal anaemia [aPR=1.13 (1.07-1.19)], lack of maternal education [aPR=1.10 (1.02-1.18), ref: ≥secondary], number of children under 5 in household [aPR=1.07 (1.00-1.14) for ≥3, ref: 0-1], unimproved sanitation facilities [aPR=1.12 (1.02-1.22)] and low/middle household incomes [aPR=1.16 (1.04-1.30) and aPR=1.13 (1.01-1.26), respectively, ref: high]. The population-attributable fraction was estimated at 8.2% (6.3-10.1%) for child-related modifiable factors, 11.1% (5.7-16.3%) for maternal-related factors, 15.8% (8.6-22.5%) for household-related factors, and 30.9% (24.0-37.2%) for the combination of all modifiable factors. This study highlighted a high prevalence of childhood anaemia in Togo and showed that a high proportion of this could be prevented.

Emerging evidence has shown a strong correlation between serum triacylglycerol (TAG) levels, the inflammatory response, and Parkinson’s disease (PD) onset. However, the causal relationship between TAG levels and PD has not been well-established. We aimed to investigate the relationship between serum TAG levels and risk of PD and explore the potential mediating role of circulating immune cells and inflammatory proteins. We utilised genotype data from the GeneRISK cohort, and summary data from genome wide association studies investigating PD, circulating immune cells, inflammatory proteins, and plasma lipidomes. Using Mendelian randomization (MR) and multivariate MR (MVMR) analysis, we further adjusted for phosphatidylcholine (17:0_18:1) and triacylglycerol (58:7). Our results suggested a robust causal link between higher serum TAG (51:4) levels and a decreased risk of PD, with one standard deviation genetically instrumented higher serum TAG (51:4) level leading to a 21 percent [95% CI, 0.66 – 0.96] reduction in the risk of PD (p = 0.015). Additionally, the results of the mediation analysis suggested a possible role for mediation through circulating immune cells (including IgD-CD38-B cells and resting CD4 regulatory T cells), but not circulating inflammatory proteins, in the causal relationship between the plasma lipidomes and PD. Our study confirms a causal relationship between higher serum TAG (51:4) levels and a lower risk of PD and clarifies a possible role for mediation through circulating immune cells, but not inflammatory proteins. These findings indicate that serum triacylglycerol (51:4) regulates immunity to effectively lower the risk of PD.