Restricted Group Research Articles

Cafeteria diet and caloric restriction affect metabolic but not behavioral characteristics in male Wistar rats

This study aimed to evaluate the effects of a cafeteria diet and caloric restriction on behavioral and metabolic profiles of adult male Wistar rats. The rats were randomly divided into three groups (n = 12/group) and from 10 weeks of age fed either ad libitum standard rat chow (control group), ad libitum cafeteria diet in addition to standard chow (diet-induced obesity (DIO) group) or kept on caloric restriction (at 85% weight of controls; restricted group) for a period of 12 weeks. Body weight was assessed twice per week and glucose levels were measured at three times during the 12-week period. At week 11 the animals were behaviorally profiled using the multivariate concentric square field™ (MCSF) test. After 12 weeks of diet the animals were euthanized, blood collected, relative organ weights were assessed and plasma or serum levels of insulin, glucose, and lipid profile were measured. The DIO group gained 23% more weight than the control group (p < 0.001) and increased adipose tissue weight in comparison to the control (p < 0.001) and restricted groups (p < 0.001). Glucose was significantly increased (p < 0.001) only during the second measurement at week 7 and insulin levels were elevated in the DIO group compared to controls and restricted groups (p < 0.01; p < 0.001, respectively). Plasma cholesterol levels were reduced for both DIO (p < 0.01) and restricted (p < 0.001) groups relative to controls. Adiponectin and leptin levels were higher for the DIO group in comparison to both the control (p < 0.001; p < 0.05) and restricted (p < 0.001; p < 0.001) groups. Thus, the two diets led to significant changes in body weight gain, adiposity, and metabolism. However, they did not alter the behavioral profiles in the MCSF test, suggesting that activity, exploration, risk assessment, risk taking or shelter seeking remained unaffected by the dietary interventions. The current findings suggest that an increase or reduction in energy intake resulted in no behavioral effects, despite the accompanying glycemic alterations potentially related to diabetes development.

Evaluation of Eating Behavior in Children with Psoriasis: Retrospective Cross Sectional Study

Background. Patients with psoriasis have increased thickness of visceral fat, including epicardial adipose tissue (EAT) that has wide spectrum of biological effects. Its thickness can be affected by the presence of obesity and eating behavior (EB) changes. Studying the associations between EB and markers of adipose tissue functional activity in children with psoriasis may help to better understand this variables correlations in the scope of comorbidities. Objective. Aim of the study is to analyze the relationship between Psoriasis Area and Severity Index (PASI), Children’s Dermatology Life Quality Index (CDLQI), EAT thickness, and leptin levels in pediatric patients with psoriasis and EB disorders. Methods. Retrospective cross sectional single-center study was conducted. 72 medical records of children with psoriasis (with varying body mass index level) who were examined and treated in dermatology department in the period from December 2021 to January 2024. All included patients have underwent dietician consultation and survey with DEBQ and CEBQ questionnaires, as a result predominant EB type was determined. EAT thickness (via two-dimensional echocardiography) and leptin levels were also measured. Psoriasis severity was evaluated via PASI and CDLQI indices. Patients were divided into three groups: with external, emotiogenic, and restrictive EB. The medians of the obtained values were calculated with determination of the confidence interval, all results were compared with each other via Kruskall-Wallis test. Results. Group of patients with external EB has shown following results: median EAT thickness was 2.5 mm (Q1–Q3: 2.1–2.8), median leptin level — 17.3 ng/ml (Q1–Q3: 14.4–26.4), median of PASI — 17 points (Q1–Q3: 12.5–20.5), median of CDLQI — 7 points (Q1–Q3: 4–13.5). Group of patients with emotionogenic EB has median EAT thickness of 2.2 mm (Q1–Q3: 1.85–2.55), median leptin level — 20.1 ng/ml (Q1–Q3: 14.5–23.95), median of PASI — 14 points (Q1–Q3: 12–16.5), median of CDLQI — 6 points (Q1–Q3: 3–12). Group of patients with restrictive EB has median EAT thickness of 3.4 mm (Q1–Q3: 3.1–3.9), median leptin level — 28.2 ng/ml (Q1–Q3: 26.1–33.5), median of PASI — 24 points (Q1–Q3: 21–27), median of CDLQI — 13 points (Q1–Q3: 9–21). Statistically significant (p = 0.0014) increase in PASI and CDLQI points was observed at comparison of different groups via Kruskall-Wallis test. Patients from restrictive EB group have shown higher values of EAT thickness, leptin levels, PASI, and CDLQI scores compared to patients with emotionogenic and external EB. No statistically significant differences were observed when comparing leptin levels and EAT thickness in the remaining groups. Conclusion. Patients with restrictive EB had higher PASI and CDLQI scores compared to patients with emotionogenic and external EB. No statistically significant differences were observed when comparing EAT thickness and leptin levels. Small study sample was the only research limitation.

Gene-echocardiography: refining genotype-phenotype correlations in cardiomyopathy patients with restrictive phenotype

Abstract Background The restrictive phenotype, the least frequent and genetically complex form of cardiomyopathy, is the focus of this investigation. The aim is to clarify the association between restrictive phenotype and genetic variants in cardiomyopathy patient. Methods We utilized whole-exome sequencing in a cohort of 568 cardiomyopathy patients and performed echocardiographic evaluations to identify restrictive phenotypes. Comprehensive analysis of cardiac characteristics and functionality was also undertaken. Results Among the cohort, 33 patients exhibited a restrictive phenotype. These patients were distributed as follows: 7 within the restrictive cardiomyopathy group (RCM), 20 in the hypertrophic cardiomyopathy group (HRCM), and 6 in the dilated cardiomyopathy group (HDRCM). A notable prevalence of gene mutations, mainly in the MYBPC3 gene, was found in these individuals. We observed that mutation carriers, characterized by smaller aortic sinus dimension, demonstrated an association with the mutation and diminished myocardial work. Furthermore, MYBPC3 mutation carriers showed a thicker ventricular wall and a higher predisposition for septal hypertrophy. Both HRCM and HDRCM groups displayed consistent hypertrophic manifestations, with the latter demonstrating a higher frequency of interventricular septal hypertrophy. The 5-year survival rate was calculated at 54.5%, with gene mutations not significantly affecting longevity. Conclusion Genetic factors profoundly influence the restrictive phenotype of cardiomyopathy. There is a strong link between restrictive phenotype and genetic variants in cardiomyopathy, providing a foundation for more accurate genetic testing and personalized management of patients. The emerging "gene-echocardiography" concept may refine the accuracy and productivity of genetic counseling and testing in cardiomyopathy.

Effect of DASH vs. Mediterranean diet on metabolic syndrome and cardiometabolic profile in adults with high normal blood pressure or grade 1 hypertension: the DASH-MedDiet randomized controlled trial

Abstract Background Lifestyle interventions are recommended as the first-line treatment to control metabolic syndrome components and improve cardiometabolic profile. However, studies directly comparing the effects of the Dietary Approaches to Stop Hypertension (DASH) vs. the Mediterranean diet (MedDiet) on metabolic syndrome prevalence and cardiometabolic risk factors are currently lacking. Purpose We aimed to assess the effects of a 3-month intensive dietary intervention implementing salt restriction either alone or on top of the DASH and MedDiet compared to no/ minimal intervention on metabolic syndrome prevalence and cardiometabolic profile in never drug-treated adults with high normal blood pressure (BP) or grade 1 hypertension. Methods We randomly assigned individuals to the control group (CG, n = 60), salt restriction group (SRG, n = 60), DASH diet with salt restriction group (DDG, n = 60), or MedDiet with salt restriction group (MDG, n = 60). All patients were followed monthly for 3 months in individual sessions coordinated by the clinical dietician. For the patients of all four study groups, the goal was to maintain the initial body weight unchanged. Patients in the CG received general advice on dietary principles for BP control. For the patients in all three intervention groups, the goal was to limit sodium intake to 2,000 mg/ day (equivalent to 5,0g salt/ day). In addition, patients in the DDG and the MDG received an individualized dietary plan with six daily sample menus to facilitate the adoption of the assigned dietary pattern. Anthropometric indices, dietary intake, office BP, and fasting blood samples were evaluated pre- and post-intervention. Results According to the intention-to-treat analysis, at 3 months post-intervention, the DDG and the MDG had lower odds ratio (OR) (95% CI) of metabolic syndrome [0.29 (0.12, 0.72), and 0.15 (0.06, 0.41), respectively] compared to the CG. Moreover, the MDG had lower odds of elevated BP levels compared to both the DDG and the SRG [0.08 (0.03, 0.19), and 0.13 (0.05, 0.34), respectively], and lower odds of metabolic syndrome compared to the SRG [0.25 (0.09, 0.67)]. In addition, the DDG and the MDG had lower odds of elevated fasting glucose compared to both the CG and the SRG, whereas the study groups did not differ regarding the odds of elevated waist circumference, elevated triglycerides, and reduced HDL- cholesterol. Regarding cardiometabolic indices, total and LDL-cholesterol, fasting glucose, HbA1c, and systolic/ diastolic BP were reduced in all three intervention groups compared to the CG. Conclusions On a background of salt restriction, the MedDiet was superior in BP reduction, but the DASH and MedDiet reduced the prevalence of metabolic syndrome to the same extent.

Quantifying Spatial Distribution of Ventilation Defects in Multiple Pulmonary Diseases With Hyperpolarized 129Xenon MRI.

Hyperpolarized 129Xe MRI assesses lung ventilation, often using the ventilation defect percentage (VDP). Unlike VDP, defect distribution index (DDI) quantifies spatial clustering of defects. To quantify spatial distribution of 129Xe ventilation defects using DDI across pulmonary diseases. Retrospective. Four hundred twenty-one subjects (age = 23.1 ± 17.1, female = 230), comprising healthy controls (N = 60) and subjects with obstructive conditions (asthma [N = 25], bronchiolitis obliterans syndrome [BOS, N = 18], cystic fibrosis [CF, N = 90], lymphangioleiomyomatosis [LAM, N = 50]), restrictive conditions (bleomycin-treated cancer survivors [BLEO, N = 14]; fibrotic lung diseases [FLD, N = 92]), bone marrow transplantation (BMT, N = 53), and bronchopulmonary dysplasia (BPD, N = 19). 3 T, two-dimensional multi-slice gradient echo. Whole-lung mean DDI was extracted from DDI maps; correlated with VDP (percent of pixels <60% of whole-lung mean signal intensity) and pulmonary function tests (PFTs) including FEV1, FVC, and FEV1/FVC. DDI and DDI/VDP, a marker of defect clustering, were compared across diseases. Pearson correlation analysis and Kruskal-Wallis tests. P < 0.0056 for disease groups, P < 0.0125 for categories. DDI was significantly elevated in BMT (8.3 ± 11.5), BOS (30.1 ± 57.5), BPD (16.0 ± 46.8), CF (15.4 ± 27.2), and LAM (12.6 ± 34.2) compared to controls (1.8 ± 3.1). DDI correlated significantly with VDP in all groups (r ≥ 0.56) except BLEO, and with PFTs in CF, FLD, and LAM (r ≥ 0.56). Obstructive groups had significantly higher mean DDI (14.0 ± 32.0) than controls (1.8 ± 3.0) and restrictive groups (4.0 ± 12.0). DDI/VDP was significantly lower in the restrictive group (0.6 ± 0.6) than controls (0.8 ± 0.6) and obstructive group (1.0 ± 1.0). DDI may provide insights into the distribution of ventilation defects across diseases. 3 TECHNICAL EFFICACY: Stage 2.

Effect of Social Isolation on Behavioural Response of Murrah Buffalo Calves Towards Novelty

Background: During the production cycle, dairy animals in intensive production systems are exposed to various challenging events including novel stimuli (e.g., handlers, food and group-mates). The welfare of an individual animal depends on the ability to cope with environmental challenges. Novelty is generally associated with negative emotions however; individual behavioural and physiological responses toward challenging events can be very variable. So, studying behavioural response of calves towards novelty can help us address the welfare needs of the buffalo calves in a holistic manner. Methods: For this study, 24 Murrah buffalo calves were selected at birth and randomly allotted to four groups (six calves each) comprising of SG group (restricted suckling and group housed), SI group (restricted suckling and individually housed), WG group (weaned at birth and group housed) and WI group (weaned at birth and individually housed) for a period of three months. All calves were trained with bottle feeding from day old of age. At 9th week of age, the behavioural response of the calves to novelty was tested in two different novel situations i.e. novel object test and social novelty test using CCTV camera. Result: The results suggest that buffalo calves separated from mother and housed individually showed increased behavioural responses characterized by increased time in decision making, higher standing idle time and more fearful to an unfamiliar calf compared to other groups. It can be concluded that social isolation of the buffalo calves increases fearfulness to novelty hence reducing their welfare in future.

Restrictive vs Liberal Transfusion Strategy in Patients With Acute Brain Injury

Blood transfusions are commonly administered to patients with acute brain injury. The optimal hemoglobin transfusion threshold is uncertain in this patient population. To assess the impact on neurological outcome of 2 different hemoglobin thresholds to guide red blood cell transfusions in patients with acute brain injury. Multicenter, phase 3, parallel-group, investigator-initiated, pragmatic, open-label randomized clinical trial conducted in 72 intensive care units across 22 countries. Eligible patients had traumatic brain injury, aneurysmal subarachnoid hemorrhage, or intracerebral hemorrhage; hemoglobin values below 9 g/dL within the first 10 days after injury; and an expected intensive care unit stay of at least 72 hours. Enrollment occurred between September 1, 2017, and December 31, 2022. The last day of follow-up was June 30, 2023. Eight hundred fifty patients were randomly assigned to undergo a liberal (transfusion triggered by hemoglobin <9 g/dL; n = 408) or a restrictive (transfusion triggered by hemoglobin <7 g/dL; n = 442) transfusion strategy over a 28-day period. The primary outcome was occurrence of an unfavorable neurological outcome, defined as a Glasgow Outcome Scale Extended score between 1 and 5, at 180 days following randomization. There were 14 prespecified serious adverse events, including occurrence of cerebral ischemia after randomization. Among 820 patients who completed the trial (mean age, 51 years; 376 [45.9%] women), 806 had available data on the primary outcome, 393 in the liberal strategy group and 413 in the restrictive strategy group. The liberal strategy group received a median of 2 (IQR, 1-3) units of blood, and the restrictive strategy group received a median of 0 (IQR, 0-1) units of blood, with an absolute mean difference of 1.0 unit (95% CI, 0.87-1.12 units). At 180 days after randomization, 246 patients (62.6%) in the liberal strategy group had an unfavorable neurological outcome compared with 300 patients (72.6%) in the restrictive strategy group (absolute difference, -10.0% [95% CI, -16.5% to -3.6%]; adjusted relative risk, 0.86 [95% CI, 0.79-0.94]; P = .002). The effect of the transfusion thresholds on neurological outcome at 180 days was consistent across prespecified subgroups. In the liberal strategy group, 35 (8.8%) of 397 patients had at least 1 cerebral ischemic event compared with 57 (13.5%) of 423 in the restrictive strategy group (relative risk, 0.65 [95% CI, 0.44-0.97]). Patients with acute brain injury and anemia randomized to a liberal transfusion strategy were less likely to have an unfavorable neurological outcome than those randomized to a restrictive strategy. ClinicalTrials.gov Identifier: NCT02968654.

Comparison of 4-week versus 8-week dietitian-led FODMAP diet group education sessions in tertiary care clinical practice for irritable bowel syndrome: A service evaluation.

The implementation of the fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) diet for irritable bowel syndrome (IBS) can be effectively delivered by dietitians in group settings. The initial FODMAP restriction phase is recommended to be followed for 4 weeks; however, limited efficacy data exist for 4-week FODMAP restriction in group education clinical practice. We aimed to compare 4-week versus 8-week FODMAP group treatment pathways on clinical outcomes using a prospective service evaluation design of IBS patients attending FODMAP restriction (baseline) and reintroduction (follow-up) group sessions (between 2015 and 2019). Clinical outcomes included global symptom question (GSQ) measuring satisfactory relief, gastrointestinal symptom rating scale (GSRS), stool frequency (SF), stool consistency using Bristol stool form scale (BSFS), diet acceptability, patient satisfaction with group sessions and dietary adherence. Logistic regression was used to test for differences in treatment effects when clinical outcomes were compared between groups. Patients (n = 284) included were aged 18 to 86 years (mean ± SD [standard deviation], 44.6 ± 15.5), 80% female, and were split into 4-week (41%, 117/284) versus 8-week (59%, 167/284) pathways with no differences in baseline characteristics. Mean ± SD time gap between baseline and follow-up was 4.6 ± 0.9 weeks in the 4-week pathway and 9.6 ± 3.3 weeks in the 8-week pathway. When groups were compared at follow-up, no statistical differences were observed in any measures (GSQ, GSRS, SF, BSFS, dietary adherence, diet acceptability and patient satisfaction). A 4-week dietitian-led group FODMAP treatment pathway is as clinically effective and maintains patient acceptability when compared to 8-weeks and should be considered as part of routine clinical practice.

Alternative Tree Species for Sustainable Forest Management in the Brazilian Amazon

The scarcity of hardwoods from tropical forests makes the search for alternative species necessary for commercialization. This study aimed to establish groups of timber species from the Amazon Forest with potential for logging purposes through the assessment of their physical-mechanical properties, aiming to identify alternative species that can meet the market demands. We utilized data from the Forest Products Laboratory (LPF) (containing information on basic density and other wood mechanical properties) and the Timberflow platform, as well. We applied a multivariate cluster analysis technique with the aim of grouping species based on the technological characteristics of their wood and evaluating similarity among them to obtain homogeneous groups in terms of economic potential and utilization. The results indicated four homogeneous groups: Cluster 1 (40.72% of species, basic density-db: 690 kg m−3), Cluster 2 (13.92%, db: 260 and 520 kg m−3), Cluster 3 (27.32%, db: 550 and 830 kg m−3), and Cluster 4 (18.04%, db: 830 kg m−3). Most of the 20 listed species are classified as more commercially viable (70%), with high wood density. Species identified as alternatives include Dialium guianense and Zollernia paraensis for Dipteryx odorata, Terminalia argentea for Dinizia excelsa, Terminalia amazonia and Buchenavia grandis for Goupia glabra, and Protium altissimum and Maclura tinctoria for Hymenaea courbaril. The analysis highlighted the overexploitation of a restricted group of species and the need to find alternatives to ensure the sustainability of forest management. This study contributed to identifying species that can serve as alternatives to commercial ones, promoting a more balanced and sustainable forest management.

Impact of dietary restriction on development, mating, and reproduction in the natural predator Pardosa pseudoannulata.

Dietary restriction-influenced biological performance is found in many animal species. Pardosa pseudoannulata is a dominant spider species in agricultural fields and is important for controlling pests. In this study, three groups - a control group (CK group), a re-feeding group (RF group), and a dietary restriction group (RT group) - were used to explore development, mating, reproduction, and the expression levels of Vg (vitellogenin) and VgR (vitellogenin receptor) genes in the spider. The findings indicated that when subjected to dietary restriction, the carapace size, weight of the spiderlings, and weight of the adults exhibited a decrease. Furthermore, the preoviposition period and egg stage were observed to be prolonged, while the number of spiderlings decreased. It was also observed that re-feeding reduced cannibalism rates and extended the preoviposition period. Dietary restriction also affected the expression of the Vg-3 gene in the spider. These results will contribute to the understanding of the impact of dietary restriction in predators of pest control, as well as provide a theoretical foundation for the artificial rearing and utilisation of the dominant spider in the field.

Application of prophylactic flow restriction in brachiocephalic arteriovenous fistulas

To investigate the effects of prophylactic flow restriction for brachiocephalic arteriovenous fistula on postoperative high-flow-related complications and patency rate in patients undergoing hemodialysis. Clinical data of patients with end-stage renal disease who underwent brachiocephalic arteriovenous fistula surgery for hemodialysis from February 2017 to May 2022 in Department of Nephrology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine were retrospectively analyzed. During surgery, a 4-5 mm vascular suture loop was placed around the vein near the anastomosis as a flow restriction device in 43 patients (flow restriction group), while 42 patients did not receive the prophylactic flow restriction ring (control group). All patients were followed up for 1 to 5 years. The incidence rates of complications related to the hemodialysis access pathway, including distal ischemia syndrome, the formation of arteriovenous fistula aneurysms, thrombus, high-flow congestive heart failure, anastomosis of the vein within 1 cm of the anastomosis and cephalic arch stenosis, were compared between the two groups. The natural blood flow rate of the arteriovenous fistula, anastomosis size, the internal diameter of the vein near the anastomosis, primary patency rate, assisted primary patency rate, and secondary patency rate of the arteriovenous fistula, were also evaluated and compared between the two groups. Logistic regression analysis was used to investigate the factors affecting arteriovenous fistula patency rates, as well as the impact of the flow-restricting ring on postoperative factors. Ultrasound measurements showed that the internal diameter of the vein at the site of the flow restriction ring in the flow restriction group was (3.7±0.6) mm at three months postoperatively, which was significantly smaller than the internal diameter of the narrowest part of the vein near the anastomosis in the control group [(4.1±1.0) mm, t=－2.416, P<0.01]. The postoperative anastomotic diameter and natural blood flow rate of the arteriovenous fistula in the flow restriction group were both significantly lower than those in the control group (both P<0.05). Furthermore, the incidence rates of various complications in the flow restriction group were significantly lower than those in the control group (all P<0.05). At 6, 12, and 24 months postoperatively, the primary patency rate and assisted primary patency rate in the flow restriction group were significantly higher than those in the control group (both P<0.05), while there was no significant difference in secondary patency rates between the two groups (P>0.05). Binary logistic regression analysis indicated that age, diabetes, and natural blood flow rate of the arteriovenous fistula at 3 months postoperatively were independent risk factors for primary patency rate, while the flow restriction for brachiocephalic arteriovenous fistula was an independent protective factor for primary patency rate (P<0.01 or P<0.05). The application of flow restriction was negatively correlated with anastomotic diameter at 6 and 12 months, natural arteriovenous fistula blood flow, and the incidence rates of cephalic arch stenosis and aneurysm formation (all P<0.05). The prophylactic constriction during brachiocephalic arteriovenous fistula surgery in patients undergoing hemodialysis can limit the size of the anastomosis and postoperative arteriovenous fistula blood flow, reducing complications such as cephalic arch stenosis and high-flow heart failure, and increasing primary patency rates of arteriovenous fistula and delay the reintervention of the fistula.

Low-intensity blood flow restriction (LI-BFR) and moderate-intensity improves quadriceps strength and thigh circumference in older women

Background and objectives. Weakness and atrophy in the quadriceps femoris lead to decreased functional capacity, heightened fall risk, and increased mortality among older women. While moderate-intensity strength training is generally recommended for the elderly, higher-intensity exercises carry a greater risk of injury. Low-intensity exercises with blood flow restriction offer an alternative, providing comparable benefits to high-intensity training. This study aims to evaluate the effects of moderate-intensity and low-intensity blood flow restriction exercises on quadriceps femoris strength and thigh circumference in healthy elderly women. Materials and methods. The sample size was of 88 subjects equally randomized into a moderate-intensity group and a blood-flow restriction group. The moderate-intensity group performed strengthening exercises with a load of ≥40–60% of 1RM, 3 sets, 36 repetitions. The blood-flow restriction group conducted exercises at 20–30% of 1RM, completing 75 repetitions across 4 sets, using a pressure cuff applied to the upper thigh at 50 mmHg or 40% of the Arterial Occlusion Pressure (AOP). Both groups exercised twice a week over a 6-week period. Muscle strength (assessed via dynamometer and 1RM) and thigh circumference were recorded before and after the intervention. Results. After six weeks of intervention, both groups showed a significant increase in muscle strength and thigh circumference (p &lt;0.001). However, no notable differences were observed between the moderate intensity group and the blood flow restriction group regarding quadriceps strength (dynamometer), quadriceps 1RM strength, or thigh circumference (p &gt;0.05). Muscle soreness was reported in 18% of participants in the moderate intensity group. Conclusion. Low-intensity resistance exercises with blood flow restriction in older women can promote strength gains and muscle hypertrophy comparable to moderate-intensity training, while offering a safer alternative.

Comparison of liberal versus restrictive transfusion strategies after hip surgery in patients with coronary artery disease: a post hoc analysis of the FOCUS trial

BackgroundThere are no clear recommendations for optimal transfusion thresholds for patients with coronary artery disease who undergo noncardiac surgery. By comparing restrictive and liberal transfusion strategies for coronary artery disease combined with hip surgery, this study hopes to provide recommendations for transfusion strategies in this special population.MethodsA total of 805 patients from the FOCUS trial (Transfusion Trigger Trial for Functional Outcomes in Cardiovascular Patients Undergoing Surgical Hip Fracture Repair) with coronary artery disease combined with hip surgery were divided into two groups based on transfusion thresholds: restricted transfusion (a hemoglobin level of 8 g/deciliter) and liberal transfusion (a hemoglobin threshold of 10 g/deciliter). The primary outcome of this study was a composite endpoint including in-hospital death, myocardial infarction, unstable angina, and acute heart failure. The secondary endpoints included other in-hospital adverse events and 30- and 60-day follow-up events. Analyses were performed by intention to treat.ResultsExcept for the proportion of congestive heart failure patients, the baseline levels of the two groups were comparable. The median number of transfusion units in the liberal transfusion group was 2 units, and the median transfusion volume in the restricted transfusion group was 0 units. The primary outcome was not significantly different between the two groups (9.2% vs. 9.4%, p = 0.91). The incidence of in-hospital myocardial infarction events was lower in the liberal transfusion group than in the restricted transfusion group (3.2% vs. 6.2%) (OR = 0.51, P = 0.048). The remaining in-hospital endpoint events, except for myocardial infarction, were not significantly different between the two groups. The 30-day and 60-day endpoints of death and inability to walk independently were not significantly different between the two groups, with ORs (95% CI) of 1.00 (0.75–1.31) and 1.06 (0.80–1.41), respectively. We also found no interaction between transfusion strategies and factors such as age, sex, or multiple underlying comorbidities at the 60-day follow-up.ConclusionsThere was no significant difference in the in-hospital, 30-day or 60-day outcome endpoints between the two groups. However, this study demonstrated that a liberal transfusion strategy tends to reduce the incidence of in-hospital myocardial infarction events in patients with coronary artery disease combined with hip surgery compared to a restrictive transfusion strategy. More high-quality studies should be designed to investigate the optimal transfusion threshold in patients with coronary artery disease treated without cardiac surgery.

Multicenter, open label, randomized controlled superiority trial for availability to reduce nocturnal urination frequency: The TOP-STAR study.

Nocturia impairs the quality of life in patients with type 2 diabetes mellitus. Although sodium glucose co-transporter 2 inhibitors (SGLT2i) such as tofogliflozin increase urine volume, their impact on nocturia, in conjunction with dietary salt restriction, is less clear. This multicenter, open-label, randomized, parallel-group trial included 80 subjects with type 2 diabetes and nocturia. The patients were divided into two groups: one receiving tofogliflozin, the shortest half-life, without salt restriction, and the other receiving both tofogliflozin and dietary salt restriction. The primary endpoint was nocturia frequency at 12 weeks. The secondary outcomes included changes in daytime urination frequency, urine volume, and home blood pressure. At 12 weeks, there were no significant differences in nocturia changes between both groups. Nocturia frequency did not change in the tofogliflozin without salt restriction group from 1.5 ± 0.8 to 1.3 ± 1.1 times per night (P = 0.297), and significantly decreased from 1.6 ± 1.0 to 1.3 ± 0.7 times per night in the tofogliflozin and dietary salt restriction group (P = 0.049). There was a trend toward increased urine volume and frequency during the daytime in the group with salt restriction, indicating a time-shift effect of the short half-life tofogliflozin and salt restriction on urinary time. The frequency of nocturia after tofogliflozin did not increase. Tofogliflozin reduced nocturia when combined with salt restriction. Furthermore, daytime urine volume and frequency showed an increasing trend, suggesting a shift in urine production to daytime hours due to the short half-life of tofogliflozin. Dietary modifications can enhance the therapeutic benefits of tofogliflozin in managing nocturia in people with type 2 diabetes.

Bioactive peptides from food waste: New innovative bio-nanocomplexes to enhance cellular uptake and biological effects

Mastitis is the most important bovine disease, causing dramatic economic losses to the dairy industry, worldwide. This study explores the valorization of whey from cows affected by mastitis, through a novel separation approach. Surface Active Maghemite Nanoparticles (SAMNs) were used as magnetic baits to selectively bind bioactive peptides with potential health benefits. Advanced techniques such as HPLC and LC-MS/MS highlighted SAMN capability of isolating a restricted group of peptides, drastically diverging from the control profile (Solid Phase Extraction, SPE) and characterized by a peculiar acidic residue distribution. Most importantly, both magnetically purified and nano-immobilized peptides (SAMN@peptides) showed protective activity against oxidative stress and inflammation, when tested on Caco-2 cells; with SAMN@peptides being associated with the strongest biological effect. SAMNs exhibited excellent characteristics, they are environmentally sustainable, and their synthesis is cost-effective prompting at a scalable and selective tool for capturing bioactive peptides, with potential applications in functional foods and nutraceuticals.

Distinct patterns of satDNA distribution in holocentric chromosomes of spike-sedges (Eleocharis, Cyperaceae).

Eleocharis R. Br. (Cyperaceae) species are known for having holocentric chromosomes, which enable rapid karyotype differentiation. High intra- and interspecific variations in chromosome numbers and genome sizes are documented for different Eleocharis species, frequently accompanied by fluctuations in the repetitive DNA fraction. However, a lack of detailed analysis has hampered a better understanding of the interplay between holocentricity and repetitive DNA evolution in this genus. In our study, we confirmed the holocentricity of Eleocharis chromosomes by immunostaining against the kinetochore protein KNL1 and the cell-cycle dependent posttranslational modifications histone H2AThr121ph and H3S10ph. We further studied the composition and chromosomal distribution of the main satellite DNA repeats found in the newly sequenced species E. maculosa, E. geniculata, E. parodii, E. elegans, and E. montana. Five of the six satellites discovered were arranged in clusters, while EmaSAT14 was distributed irregularly along the chromatid length in a line-like manner. EmaSAT14 monomers were present in a few copies in few species across the Eleocharis phylogenetic tree. Nonetheless, they were accumulated within a restricted group of Maculosae series, subgenus Eleocharis. The data indicates that the amplification and line-like distribution of EmaSAT14 along chromatids may have occurred recently within a section of the genus.

478 Impact of crude protein and phosphorus deficiencies on liver mitochondrial content and transcriptome in growing Merino wethers

Abstract In grazing systems in Northern Australia, crude protein (CP) and phosphorus (P) availability varies, affecting ruminant production due to voluntary reduced intake and therefore body weight (BW) gain. We were interested in understanding metabolic regulation in this model system, both in terms of a) identifying key tissues, and b) detecting any modifications in mitochondrial physiology, given the central role of this organelle in bioenergetic homeostasis. Merino wethers (n = 24) were subjected to three dietary regimens: High CP, High P, (Control), Low CP, Low P (Deficient), and High CP, High P, with restricted feed intake (Restricted). Mitochondrial DNA (mtDNA) copy numbers, indicative of mitochondrial content, were measured via qPCR. Transcriptomic analyses through RNA sequencing targeted mitochondria-associated gene expression changes and pathways, using the MitoCarta 3.0 database. There was a significant decrease of mtDNA copy numbers in the liver of sheep under either Deficient and Restricted diets (P &amp;lt; 0.01), with as much as a 2-fold difference between the Control and Deficient diets. This may suggest reduced mitochondrial biogenesis as an adaptation to decreased energy intake. When compared with the Control group, both the Deficient and Restricted groups upregulated pathways related to vitamin metabolism (Log2FC: 0.231 and 0.449) and folate and 1-C metabolism (Log2FC: 0.409 and 0.706). However, impacted pathways shared between these two comparisons (Control v Deficient, Control v Restricted) also include choline and betaine metabolism, amino acid metabolism, and glycine metabolism, which suggests similar mechanisms being impacted by decreased energy intake, regardless of whether it is due to satiety from nutrient deficiency or restricted feed intake. Notably, the creatine metabolism pathway was uniquely upregulated in the Restricted group compared with the Deficient group (Log2FC: 0.114), although the CKMT2 gene was upregulated in the Restricted group compared with both the Control and Deficient group (Log2FC: 1.30 and 0.879). Additionally, the SLC25A family pathway, responsible for mitochondrial metabolite transport, was found to be upregulated in the Restricted group when compared with both Control and Deficient groups (Log2FC: 0.33 and 0.865). Overall, this study demonstrated a pronounced decrease in mitochondrial content in the liver of growing Merino wethers subjected to nutritional deficiencies and feed restriction. Multiple metabolic pathways were shared between the comparisons of the Control diet group to both Deficient and Restricted nutritional treatments. However, the SLC25A transporter family pathway was uniquely upregulated in the Restricted group compared with either an optimal or deficient diet. The regulation of these metabolic pathways is a subject of further study that may represent a systemic response to maintain homeostasis while undergoing significantly lower energy intake, with implications for animal growth, tissue deposition, and energetic maintenance. Understanding distinctions in the response to feed restriction and nutrient deficiency induced reduction in intake may help improve production strategies for ruminants grazing in these conditions.

P171 WATER DEPRIVATION REDUCES WATER INTAKE AND INCREASES SUCROSE INTAKE IN SPONTANEOUSLY HYPERTENSIVE RATS: POSSIBLE MECHANISMS

Background and Objective: Water deprivation (WD), a common situation in wild and human lives, can induce an increase in sucrose palatability in SHR. However, it is not known if SHR also has an increase in sucrose intake after WD and if this intake is related to energy intake, as WD reduces food intake, or to the change in sucrose palatability. Methods: Adult (∼12 weeks) male Holtzman (normotensive, NT) or SHR rats (n = 20/strain) were used. In protocol 1, all rats were first subjected to 24-h WD. Food consumption was measured during WD and was used for the non-water deprived (ND)/food restricted (FD) group to equal energy consumption. Three days after the WD, rats were randomly assigned to the 24-hour WD or the ND/FR group. In protocol 2, animals were implanted with an intraoral cannula and were randomly assigned as above. Results: In the WD condition, water intake was greater in NT (15.9 ± 1.1, vs. SHR: 8.6 ± 0.2 mL/120 min, p &lt; 0.05), whereas sucrose intake was greater in SHR (8.8 ± 0.7, vs. NT: 2.1 ± 1 mL/120 min, p&lt; 0.05). In the ND/FR condition, water intake was very low in both strains, however, SHR had a higher sucrose intake compared to NT (11.5 ± 2.0, vs. NT: 3.3 ± 1.8 mL/120 min; p &lt; 0.05). In NT rats, in the WD condition, there was a decrease in sucrose palatability compared to the ND/FR condition, whereas in SHR palatability was similar in the WD or ND/FR condition. SHR have a greater mean arterial pressure than NT (167 ± 3 vs, NT: 105 ± 2 mmHg). Conclusions: Our results suggest that SHR favours energy intake during WD, since during ND/FR they drank equivalent amount of sucrose. This suggestion is supported by the absence of a greater palatability to sucrose in SHR when food is restricted. Support: CAPES PrINT, FAPESP, CNPq

Creativity in motion: examining the impact of meaningful movement on creative cognition

This study examined the link between creative cognition and meaningful physical movement among university students (N = 151) from a cognitive offloading perspective. A linear mixed model, repeated measures design examined whether divergent thinking on three Alternative Uses Tasks (AUTs; within-subjects factor) was influenced by movement in three independent experimental groups: (1) gesture as meaningful movement (n = 51), (2) meaningless movement (n = 50), and (3) restricted movement (n = 50). Linear mixed model results indicated that changes in AUT fluency, flexibility, and originality across trials did not significantly interact with group. However, baseline gesture frequency was positively associated with all four creativity outcome measures and moderated group-level changes in originality across trials. Infrequent baseline gesturers demonstrated lower originality scores in the gesture as meaningful movement group compared to those in the restricted movement group. More frequent baseline gesturers experienced higher originality in both the gesture as meaningful movement and meaningless movement groups compared to those in the restricted movement group. This study demonstrates that the cognitive processes involved in novel idea generation may be differentially impacted by movement and may be more sensitive to individual differences in movement predisposition than experimental movement manipulation.

Impact of feed efficiency on young beef animals on adult resilience: From field challenge experiments to modelling approaches

The relationship between feed efficiency at young ages and resilience as cows has been examined using an experiment that combines residual feed intake (RFI) evaluation of beef heifers and subsequent dietary challenge as cows. Feed efficiency of 569 heifers of 22 months of age was estimated during a 70-day period. Then a dietary challenge was applied on 303 of these animals after their first calving, half of them being fed 30 % below their expected needs from 10 days after calving up to the start of the grazing period (around mid-April), after which all the animals received the same management. When possible, the animals were kept until third lactation, giving a total of 514 lactations. Dam weight, dam BCS and calf weight were measured regularly, dam milk production was estimated three times during the lactation and resumption of cyclicity was recorded as well. The experimental data were analyzed using linear models including the effects of heifer efficiency (RFI <-0.4 = efficient; RFI >0.4 = inefficient) and interaction of heifer efficiency and diet group. The data were also used to calibrate a herd dynamics model representing management-nutrition and reproduction interactions at animal level. The experiment data showed that the efficient heifers were 18 kg heavier as cows when fed ad libitum (P = 0.04) but no difference was observed when restricted. Within both diets, heifers classified as efficient produced between 6 and 12 % less milk as cows than inefficient heifers depending on the lactation stage (P < 0.01), with a subsequent effect on calf weight. Finally, the resumption of cyclicity was one week shorter for the efficient animals when fed ad libitum but the opposite was observed within the restricted group, representing a complete ovarian cycle difference between diet groups within the efficient class (P = 0.001). In the lifetime modelling approach, two clusters of animals with different characteristics, including RFI, were simulated under both a non-restricted and restricted feeding environment. In this simulation, efficient heifers produced lighter cows with lower intake and higher body reserves from second calving until culling. Non-efficient heifers had better productive (kg of weaned calf) performance as cows independently of environment. The simulated reproductive performance of cows was equal for animals coming from efficient and non-efficient heifers under the non-restricted environment whereas efficient heifers perform better in the restricted environment, especially when parity increases. Both approaches showed that the interplay between efficiency at young ages and short- and long-term resilience depends on the environment. It can be concluded that the selection for efficiency at young ages has a negative impact on lactational performance as cows but not necessarily on reproductive resilience.