Reduced Body Mass Research Articles

The Impact of Basic Police Training and Scale Diet on Body Composition and Aerobic Performance of Nepal Police Officers Trainees

Executing their daily duties, police officers are expected to perform complex, physically demanding activities, often at maximal levels of exertion. Given these criteria, training must be rigorous enough to ensure that when trainees graduate, they are competent in their response to crisis and flexible enough to sustain this for the span of their career. The present study aimed to determine the impact of scale diet and physical training (SDPT) on body composition and aerobic performance among Nepal police officer trainees. We conducted a cross-sectional analytic study among 570 Nepal Police recruits from Nepal Police Academy of Butwal and Kathmandu. Null hypothesis was created followed by an alternative hypothesis. Alpha (1 - ?) for the above-mentioned study design were set. Parametric statistical analysis was done with criteria set for acceptance or rejection of the null hypothesis. We collected the data from the field as per Nepal police basic exercise and diet protocol to determine the effect of physical training and scale diet on body composition and aerobic performance. We enrolled all the recruits from March to May, 2019 who met the eligibility criteria in the study. We used Microsoft Excel 2013 for data entry and R program (version: 4.0.3) for statistical analysis. Results:There was a significant rise in aerobic performance (4.51 ± 3.39 ml/kg/min) and remarkable reduction in body fat (-4.49 ± 2.33 %) and Body Mass Index (-0.433 ± 1.00 kg/m2) after SDPT among participants with normal BMI at the time of recruitment. Body fat was significantly reduced (-4.36 ± 2.3%) and aerobic performance was significantly increased (6.93±4.70 ml/kg/min) among overweight participants at the time of recruitment. The methodology adopted in the physical training of Nepal Police was effective in reducing body mass index and fat, improving the physical capacity. . Key words: Scale Diet; Physical Training, Body Fat; Aerobic Performance; VO2max, Body Mass Index.

AND/ASPEN and the GLIM malnutrition diagnostic criteria have a high degree of criterion validity and reliability for the identification of malnutrition in a hospital setting: A single-center prospective study.

Multiple malnutrition diagnostic tools are available in clinical practice, yet, evidence on their validity and reliability is limited. We aim to assess and compare the validity and reliability of the different combinations of indicators of the three most used diagnostic tools with two validated malnutrition screening tools. Nutrition risk screening was evaluated using the Mini Nutritional Assessment-Short Form (MNA-SF) and the Nutrition Risk Screening-2002 (NRS-2002). Nutrition assessment was conducted using different combinations of the Academy of Nutrition and Dietetics/American Society for Parenteral and Enteral Nutrition (AND/ASPEN), the European Society for Clinical Nutrition and Metabolism (ESPEN), and the Global Leadership Initiative on Malnutrition (GLIM) criteria. Concurrent criterion validity and inter-rater reliability of the overall and the different combinations of indicators in the diagnostic tools were evaluated and compared. Sensitivity, specificity, positive predictive value, negative predictive value, and Cohen kappa were calculated to determine tool validity and reliability. The AND/ASPEN (132 [22.8%]) combination and GLIM-1 (133 [23.0%]) (weight loss + compromised food intake) predicted the highest number of malnourished patients and reported a high degree of concurrent criterion validity, agreement, and reliability. On the contrary, overall ESPEN (using any combination) and GLIM-2 (reduced body mass index [BMI] + compromised food intake) reported only moderate criterion validity and low agreement and reliability. Different combinations of diagnostic criteria led to varying validity and reliability, with the lowest validation results rising from the combinations of indicators using BMI as a criterion for malnutrition diagnosis.

The accumulation of microplastic pollution in a commercially important fishing ground

The Irish Sea is an important area for Norway Lobster Nephrops norvegicus fisheries, which are the most valuable fishing resource in the UK. Norway lobster are known to ingest microplastic pollution present in the sediment and have displayed reduced body mass when exposed to microplastic pollution. Here, we identified microplastic pollution in the Irish Sea fishing grounds through analysis of 24 sediment samples from four sites of differing proximity to the Western Irish Sea Gyre in both 2016 and 2019. We used µFTIR spectroscopy to identify seven polymer types, and a total of 77 microplastics consisting of fibres and fragments. The mean microplastics per gram of sediment ranged from 0.13 to 0.49 and 0 to 1.17 MP/g in 2016 and 2019, respectively. There were no differences in the microplastic counts across years, and there was no correlation of microplastic counts with proximity to the Western Irish Sea Gyre. Considering the consistently high microplastic abundance found in the Irish Sea, and the propensity of N. norvegicus to ingest and be negatively impacted by them, we suggest microplastic pollution levels in the Irish Sea may have adverse impacts on N. norvegicus and negative implications for fishery sustainability in the future.

EFFECTS OF THREE MODES OF EXERCISE TRAINING PROGRAMME ON BODY MASS INDEX OF ADULTS

The study examined the effects of three modes of exercise training programme: aerobics exercise, resistance exercise and combination of aerobics and resistance exercise on Body Mass Index among senior non-teaching staff in University of Lagos, Akoka, Nigeria, after a 12-week training programme. Age ranged from 45-55 years. The study adopted pretest posttest research design. The participants were subjected to the three modes of the exercise training programme lasting 30 minutes, performed three times a week. Data were collected on the body weight using a bathroom weighing scaleand height of the participants with calibrated wall. The data collected were analyzed with descriptive statistics of mean, standard deviation and inferential statistics of analysis of covariance (ANCOVA). There was significant difference in the pretest and posttest values of Body Mass Index of the participants after exposure to aerobics exercise, resistance exercise and combination of aerobics/resistance exercise training programmes [F(3,47) =24.732, p=0.000]. It was observed that there was reduction in the Body Mass Index of experimental groups: Aerobics exercise from pretest value of 31.08 to 28.92, resistance exercise from pretest value of 32.42 to 28.35 and combination of aerobics/resistance from pretest value of 32.54 to 30.38. the study identified the training programmes as a means of reducing Body Mass Index from increasing to the level of high risk for diseases. It is suggested that adults should take part in the training programme three times a week, so as to enhance their fitness status.

The Impact of Bariatric Surgery on the Pharmacokinetic Behaviors of Orally Administered Drugs

Bariatric surgery is considered an appropriate method in cases of obesity, such as severe or comorbidities obesity. However, the number of patients requiring bariatric surgery is growing constantly and rapidly. Opposing that, the anatomical modifications of the gastrointestinal tract often lead to a significant alteration in the pharmacokinetics of orally administered drugs in terms of absorption of drugs and the bioavailability of oral medications required after the surgery. The current study investigates the correlation between reduced body mass following bariatric surgery and the bioavailability of orally administered drugs. Therefore, it is required to warrant through clinical studies that help establish guidelines related to common oral drugs prescribed and monitor the medications that exhibit a small therapeutic window that should be assessed, excluding the clinical endpoint. Furthermore, the use of pharmacokinetic modeling based on a mechanical method to simulate the multivariate nature observed while changes occur during the exposure of drugs will help to serve as an essential tool to understand further the trends in oral exposure of drugs in postoperative cases develop practical clinical guidance.

The Results of the Families Improving Together (FIT) for Weight Loss Randomized Trial in Overweight African American Adolescents.

Few intervention studies have integrated cultural tailoring, parenting, behavioral, and motivational strategies to address African American adolescent weight loss. The Families Improving Together (FIT) for Weight Loss trial was a randomized group cohort study testing the efficacy of a cultural tailoring, positive parenting, and motivational intervention for weight loss in overweight African American adolescents (N = 241 adolescent/caregiver dyads). The trial tested an 8-week face-to-face group motivational plus family weight loss program (M + FWL) compared with a comprehensive health education control program. Participants were then rerandomized to an 8-week tailored or control online program to test the added effects of the online intervention on reducing body mass index and improving physical activity (moderate-to-vigorous physical activity [MVPA], light physical activity [LPA]), and diet. There were no significant intervention effects for body mass index or diet. There was a significant effect of the group M + FWL intervention on parent LPA at 16 weeks (B = 33.017, SE = 13.115, p = .012). Parents in the group M + FWL intervention showed an increase in LPA, whereas parents in the comprehensive health education group showed a decrease in LPA. Secondary analyses using complier average causal effects showed a significant intervention effect at 16 weeks for parents on MVPA and a similar trend for adolescents. While the intervention showed some impact on physical activity, additional strategies are needed to impact weight loss among overweight African American adolescents.

Design and Methods of a Participatory Healthy Eating Intervention for Indigenous Children: The FRESH Study.

ObjectiveTo increase vegetable and fruit intake, reduce body mass index (BMI), and improve parental blood pressure among American Indian families.DesignRandomized, wait-list controlled trial testing a multi-level (environmental, community, family, and individual) multi-component intervention with data collection at baseline and 6 months post-intervention.SettingTribally owned and operated Early Childhood Education (ECE) programs in the Osage Nation in Oklahoma.ParticipantsAmerican Indian families (at least one adult and one child in a ECE program). A sample size of 168 per group will provide power to detect differences in fruit and vegetable intake.InterventionThe 6-month intervention consisted of a (1) ECE-based nutrition and gardening curriculum; (2) nutrition education and food sovereignty curriculum for adults; and (3) ECE program menu modifications.Main Outcome MeasuresThe primary outcome is increase in fruit and vegetable intake, assessed with a 24-h recall for adults and plate weight assessments for children. Secondary outcomes included objective measures of BMI among adults and children and blood pressure among adults.

Protective Effects of Chaya against Mitochondrial and Synaptic Toxicities in the Type 2 Diabetes Mouse Model TallyHO.

The purpose of our study is to determine the protective effects of the chaya leaf against mitochondrial abnormalities and synaptic damage in the Type 2 diabetes (T2D) mouse model, TallyHO (TH). The TH mouse is a naturally occurring polygenic mouse model of diabetes that mimics many characteristics of human Type 2 diabetes. Only male TH mice develop hyperglycemia and moderate obesity. Female mice display moderate obesity but do not manifest overt diabetes. In this study, we evaluated three groups of mice over a period of 11 weeks: (1) the experimental group of TH diabetic mice fed with chaya chow; (2) a diabetic control group of TH diabetic mice fed with regular chow; and (3) a non-diabetic control group of SWR/J mice fed with regular chow. Body mass and fasting blood glucose were assessed weekly. Brain and other peripheral tissues were collected. Using qRT-PCR and immunoblotting analyses, we measured the mRNA abundance and protein levels of mitochondrial biogenesis, mitochondrial dynamics, autophagy/mitophagy, and synaptic genes. Using immunofluorescence analysis, we measured the regional immunoreactivities of mitochondrial and synaptic proteins. Using biochemical methods, we assessed mitochondrial function. We found increased body mass and fasting glucose levels in the TH diabetic mice relative to the non-diabetic control SWRJ mice. In chaya chow-fed TH diabetic mice, we found significantly reduced body mass and fasting glucose levels. Mitochondrial fission genes were increased and fusion, biogenesis, autophagy/mitophagy, and synaptic genes were reduced in the TH mice; however, in the chaya chow-fed TH diabetic mice, mitochondrial fission genes were reduced and fusion, biogenesis, autophagy/mitophagy, and synaptic genes were increased. Mitochondrial function was defective in the diabetic TH mice; however, it was rescued in the chaya chow-fed TH mice. These observations strongly suggest that chaya chow reduces the diabetic properties, mitochondrial abnormalities, and synaptic pathology in diabetic, TH male mice. Our data strongly indicates that chaya can be used as natural supplemental diet for prediabetic and diabetic subjects and individuals with metabolic disorders.

Changes in Body Composition, Energy Metabolites and Electrolytes During Winter Survival Training in Male Soldiers

The aim of this study was to examine changes in body composition, energy metabolites and electrolytes during a 10-day winter survival training period. Two groups of male soldiers were examined: the REC group (n = 26; age 19.7 ± 1.2 years; BMI 23.9 ± 2.7) had recovery period between days 6 and 8 in the survival training, whereas the EXC group (n = 42; age 19.6 ± 0.8 years; BMI 23.1 ± 2.8) did not. The following data were collected: body composition (bioimpedance), energy balance (food diaries, heart rate variability measurements), and biomarkers (blood samples). In survival training, estimated energy balance was highly negative: −4,323 ± 1,515 kcal/d (EXC) and −4,635 ± 1,742 kcal/d (REC). Between days 1 and 10, body mass decreased by 3.9% (EXC) and 3.0% (REC). On day 6, free fatty acid and urea levels increased, whereas leptin, glucose and potassium decreased in all. Recovery period temporarily reversed some of the changes (body mass, leptin, free fatty acids, and urea) toward baseline levels. Survival training caused a severe energy deficit and reductions in body mass. The early stage of military survival training seems to alter energy, hormonal and fluid metabolism, but these effects disappear after an active recovery period.

The effect of aripiprazole on leptin levels of patients with chronic schizophrenia and a comparison of leptin, acute phase protein, and cytokine levels with regard to body mass and body composition indexes.

The aim of this study was to test the effect of aripiprazole on leptin, insulin, acute phase proteins, and selected cytokines levels in patients with chronic schizophrenia. Additionally, levels of leptin, insulin, acute phase proteins, and cytokines were compared with body mass and body composition indexes. Levels of leptin, insulin, serum amyloid A (SAA), tumour necrosis factor alpha (TNF-α), and interleukins 17A (IL-17A) and 18 (IL-18) in blood serum were measured for 17 patients before and after 28 days of administering aripiprazole by means of enzyme-linked immunosorbent assay (ELISA). Before and after the study, body mass and waist circumference (WC) were also measured, and body mass index (BMI) and body fat percentage (BF%) were estimated. The sex of each patient was taken into account. After administration of aripiprazole the reduction of levels of leptin, insulin, SAA, and TNF-a were statistically significant, similarly to body mass reduction and decrease in WC, BMI, and BF%, which were also statistically significant. A positive correlation between leptin and BF% and negative correlation between insulin and body mass and body composition indexes were observed before and after the study. High sensitivity C-reactive protein (hsCRP) and hsCRP/albumin positively correlated with BMI before the treatment. In the group of women a statistically significant positive correlation between TNF-α and IL-17A and body mass and body composition indexes was observed, and in the group of men a negative correlation between IL-18 and BMI, WC, and BF% was noted. The effect of aripiprazole is connected to its anti-inflammatory activity. A 28-day treatment resulted in reduction of adipose tissue, and in the group of women it returned their leptin sensitivity to normal levels. A change of psychotropic treatment and administration of aripiprazole reduces cardiometabolic risks.

Metabolic changes induced by dapagliflozin, an SGLT2 inhibitor, in Japanese patients with type 2 diabetes treated by oral anti-diabetic agents: A randomized, clinical trial

AimWe aimed to determine whether SGLT2 inhibitor dapagliflozin treatment affects body composition and amino acid (AA) metabolism. MethodsFifty-two overweight patients treated by oral antidiabetic agents were randomly assigned to dapagliflozin (Dapa) or a standard treatment (Con) and followed for 24 weeks. The primary outcome was the change in body mass (BM) between baseline and week 24. Body composition, intrahepatic triglyceride (IHTG) content, and plasma AA concentrations were examined as secondary outcomes. ResultsThe change in BM was significantly larger in the Dapa than in the Con group, with a difference in the mean change of −1.72 kg (95 %CI: −2.85, −0.59; P = 0.004) between the groups. Total fat mass was reduced by dapagliflozin treatment, but fat-free mass was maintained. IHTG content was significantly reduced in the Dapa than in the Con (P = 0.033). Changes in AAs showed small differences between the groups, but only serine concentrations were significantly reduced in the Dapa. Intra-group analysis showed that positive associations were observed between changes in branched chain AA concentrations and body composition only in the Dapa. ConclusionsDapagliflozin treatment causes a reduction in BM mainly by reducing fat mass. AA metabolism shows subtle changes with dapagliflozin treatment.

Adverse effects of Diptera flies on northern ungulates: Rangifer, Alces, and Bison

Abstract Flies (Diptera) damage ungulates far beyond the injury of their bite wounds: they are vectors of diseases and cause ungulates to lose foraging opportunities due to avoidance behaviour. We can use the behavioural and physiological responses of bison Bison spp. (Artiodactyla: Bovidae), caribou/reindeer Rangifer tarandus (Artiodactyla: Cervidae), and moose/elk Alces alces (Artiodactyla: Cervidae) to assess the impacts of flies on these ungulates. Ungulates rely on morphological and physiological resistance to flies at low intensities of exposure. However, as fly exposure increases, ungulates begin to react with behavioural avoidance in addition to increasing their physiological response. Rangifer tarandus are highly sensitive to flies and respond quickly to their presence by avoidance behaviours that incur fitness costs through reduced body mass. Alces alces are less reactive to fly exposure, enduring the presence of flies and maintaining a low loss of fitness, sometimes dying from the cumulative effects of exposure. Bison spp. may use a facultative strategy that depends upon the prevalence of flies and associated diseases in their environment. Among these strategies, variables such as the type of fly bite, presence and degree of infection, and heritability of resistance affect individual host survival. Relationships between flies and ungulates can integrate multiple scales of organisation in the ecosystem to reflect system stability. Climate change is predicted to alter the species composition and seasonal phenology of flies and the associated effects of wounding and vector‐borne disease on ungulate populations that are central to the functions of Arctic and temperate ecosystems in the Northern Hemisphere.

UHPLC-OrbiTrap MS Characterization of Phenolic Profiles in French Marigold Extracts and Analysis of Their Antifeedant Activity against Colorado Potato Beetle.

French marigold is an aromatic plant rich in polyphenolic secondary metabolites, which pesticidal potential was examined in this study. Ultra-high-performance liquid chromatography (UHPLC) connected with OrbiTrap mass spectrometer (MS) identified 113 phenolics and revealed the most detailed phytochemistry of French marigold published so far. Depending on plant material (flowers or leaves) and solvents used for extraction (water, methanol, dichloromethane), the phenolic composition varied. Methanol extract of flowers, with 89 identified phenolics and high antioxidant activity statistically comparable with positive control Trolox, was chosen for testing of antifeedant potential against the 3rd and 4th instars of Colorado potato beetle (CPB). A significant reduction in final body mass of 4th larval stage fed with potato leaves coated with methanol extract of flowers in the concentration of 10 mg/mL was observed (157.67 mg vs. 182.26 mg of controls fed with non-treated leaves). This caused delayed molting since treated larvae reached the maximal mass a day after controls and this delay persisted during the entire larval development. Continuous feeding caused a 25% decline in digestive proteolytic activity of the 4th instar in comparison to controls. The results suggest that French marigold methanol extract of flowers could be proposed as a promising antifeedant for CPB management, with an impact on the reduction in the environmental footprint associated with synthetic pesticide application.

Evaluating the effects of water and food limitation on the life history of an insect using a multiple-stressor framework.

Many environmental stressors naturally covary, and the frequency and duration of stressors such as heat waves and droughts are increasing globally with climate change. Multiple stressors may have additive or non-additive effects on fitness-related traits, such as locomotion, reproduction, and somatic growth. Despite its importance to terrestrial animals, water availability is rarely incorporated into multiple-stressor frameworks. Water limitation often occurs concurrently with food limitation (e.g., droughts can trigger famines), and the acquisition of water and food can be linked because water is necessaryfor digestion and metabolism. Thus, we investigated the independent and interactive effects of water and food limitation on life-history traits using female crickets (Gryllus firmus), which exhibit a wing dimorphism mediating a life-history trade-off between flight and fecundity. Our results indicate that traits vary in their sensitivities to environmental factors and factor-factor interactions. For example, neither environmental factor affected flight musculature, only water limitation affected survival, and food and water availability non-additively (i.e., interactively) influenced body and ovary mass. Water availability had a larger effect on traits than food availability, affected more traits than food availability, and mediated the effects of food availability. Further, life-history strategy influenced the costs of multiple stressors because females investing in flight capacity exhibited greater reductions in body and ovary mass during stress relative to females lacking flight capacity. Therefore, water is important in the multiple-stressor framework, and understanding the dynamics of covarying environmental factors and life history may be critical in the context of climate change characterized by concurrent environmental stressors.

A Mixed Comparisons of Aerobic Training With Different Volumes and Intensities of Physical Exercise in Patients With Hypertension: A Systematic Review and Network Meta-Analysis.

It is essential for patients with hypertension to effectively reduce and maintain appropriate blood pressure levels. As one of the non-pharmacological and invasive methods, physical exercise seems to improve blood pressure of the patients with hypertension. However, different volumes and intensities of physical exercise on the improvement of hypertension are different. To understand the effects of the type of exercise training on blood pressure and the other health status of patients with hypertension, a network meta-analysis was used to compare the mixed effects of different types of exercise training. This systematic review includes all eligible randomized controlled trials of PubMed, Medline, Cochrane Library, and CINAHL. Twelve studies met the inclusion criteria (n = 846 participants at the end of the study). The results show that a medium-intensity training (MIT) is best in improving the blood pressure of patients with hypertension, while a high-volume high-intensity interval training (HVHIIT) is better in reducing body mass and resting heart rate. In addition, the analysis of the exercise capacity shows that HVHIIT has a better effect on the improvement of patients with hypertension. Noticeably, long-term high-volume and appropriate intensity exercise can effectively improve the health status of patients with hypertension. In short, for patients with high blood pressure, MIT seems to be better at lowering blood pressure, while HVHIIT can better improve exercise ability and physical fitness. However, larger randomized controlled trials with a longer duration than those included in this meta-analysis are needed to confirm these results.

Leptine and its Role in the Regulation of Appetite and the Development of Obesity

Background: Leptin, a 160 kDa hormone produced and secreted by adipose tissue in direct relation to the amount of body fat. 1.9 billion adults have been identified as overweight and more than 650 million overweight adults are obese. Hyperleptinemia and resistance to reduction in body mass are two common characteristics of obesity. Methodology: A narrative review was carried out through various databases from January 2009 to November 2021; the search and selection of articles was carried out in journals indexed in English. Keywords were used: Leptin, obesity, appetite, anorexia. Results: Leptin has its main site of action in the brain, at the level of the brain stem and the hypothalamus. In order to modulate satiety and control of reward and aversion. As the amount of adipose tissue decreases, the amount of leptin produced that crosses the blood-brain barrier decreases. Conclusions: This review offers updated information on the association between Leptin and its role in the regulation of appetite and the development of obesity.

Meta Analysis of the Efficacy of Non-pharmaceutical Chinese Medicine Therapy in the Treatment of Obese Polycystic Ovary Syndrome

Objective: To systematically evaluate the effects of acupuncture, auricular point sticking, acupoint catgut embedding, cupping and other non-pharmaceutical Chinese medicine therapies on sex hormone as well as glucose and lipid metabolism in patients with obese polycystic ovary syndrome. Method: The databases such as China National Knowledge Infrastructure were searched by computer to collect the literature on the treatment of obese polycystic by non-pharmaceutical Chinese medicine therapy combined with western medicine or lifestyle change, and the literature quality of the included literature was evaluated, and finally the data were analyzed. A total of 15 randomized controlled trial (RCT) literature were included in this study, with a total of 1263 patients. Results: Non-pharmaceutical Chinese medicine therapy combined with metformin or lifestyle can reduce body mass index, insulin resistance index, fasting plasma insulin, fasting blood glucose, luteinizing hormone, ratio of luteinizing hormone to follicle stimulating hormone, testosterone, but it has no obvious advantage over follicle stimulating hormone (FSH). Conclusion: Compared with simple application of metformin or lifestyle change, traditional Chinese medicine non drug therapy combined with metformin or lifestyle change can better improve sex hormone and blood glucose metabolism in obese PCOS patients.

The Impact of a High-Carbohydrate/Low Fat vs. Low-Carbohydrate Diet on Performance and Body Composition in Physically Active Adults: A Cross-Over Controlled Trial.

Background: Recently, high-carbohydrate or low-carbohydrate (HC/LC) diets have gained substantial popularity, speculated to improve physical performance in athletes; however, the effects of short-term changes of the aforementioned nutritional interventions remain largely unclear. Methods: The present study investigated the impact of a three-week period of HC/low-fat (HC) diet followed by a three-week wash-out-phase and subsequent LC diet on the parameters of physical capacity assessed via cardiopulmonary exercise testing, body composition via bioimpedance analysis and blood profiles, which were assessed after each of the respective diet periods. Twenty-four physically active adults (14 females, age 25.8 ± 3.7 years, body mass index 22.1 ± 2.2 kg/m2), of which six participants served as a control group, were enrolled in the study. Results: After three weeks of each diet, VO2peak was comparable following both interventions (46.8 ± 6.7 (HC) vs. 47.2 ± 6.7 mL/kg/min (LC; p = 0.58)) while a significantly higher peak performance (251 ± 43 W (HC) vs. 240 ± 45 W (LC); (p = 0.0001), longer time to exhaustion (14.5 ± 2.4 min (HC) vs. 14.1 ± 2.4 min (LC); p = 0.002) and greater Watt/kg performance (4.1 ± 0.5 W/kg (HC) vs. 3.9 ± 0.5 W/kg (LC); p = 0.003) was demonstrated after the HC diet. In both trial arms, a significant reduction in body mass (65.2 ± 11.2 to 63.8 ± 11.8 kg (HC) vs. 64.8 ± 11.6 to 63.5 ± 11.3 kg (LC); both p < 0.0001) and fat mass (22.7% to 21.2%; (HC) vs. 22.3% to 20.6% (LC); both p < 0.0001) but not in lean body mass or skeletal muscle mass was shown when compared to baseline. Resting metabolic rate was not different within both groups (p > 0.05). Total cholesterol and LDL-cholesterol significantly decreased after the HC diet (97.9 ± 33.6 mg/dL at baseline to 78.2 ± 23.5 mg/dL; p = 0.02) while triglycerides significantly increased (76 ± 38 mg/dL at baseline to 104 ± 44 mg/dL; p = 0.005). Conclusion: A short-term HC and LC diet showed improvements in various performance parameters in favor of the HC diet. Some parameters of body composition significantly changed during both diets. The HC diet led to a significant reduction in total and LDL-cholesterol while triglycerides significantly increased.

Correction of metabolic disturbances by functional food compositions in experimental obesity in CD-1 and agouti-yellow mice

Background: To determine the most promising composition, the possibility of correction of metabolic disturbances was investigated with the use of functional food compositions in CD1 and agouti-yellow mice in experimental obesity.Methods: Agouti-yellow and CD1 mice were divided into 10 groups (control, 1/1, 1/9, 2/1, 2/9 in each line) according to diets. For 4 weeks, the groups ate a high-calorie diet. Starting with week 5th, composition 1 was added to the diet in groups 1/1 (60% lard + 39% standard laboratory feed + 1% composition 1 + 10% fructose solution), 1/9 (60% lard + 31% standard laboratory feed + 9% composition 1 + 10% fructose solution); composition 2 was added to the diet in groups 2/1 (60% lard + 39% standard laboratory feed + 1% composition 2 + 10% fructose solution), 2/9 (60% lard + 39% standard laboratory feed + 9% composition 2 + 10% fructose solution). On the day 56th, each animal was weighed, blood was taken for biochemical analysis (glucose, LDL, cholesterol and HDL) and organs (the skin of the anterior abdominal wall, skeletal muscle tissue in the area of the lateral surface of the thigh, liver, kidneys with perirenal tissue, pancreas, and thymus) were taken for histological examination.Results: In agouti-yellow mice, group 2/9, the greatest decrease in blood glucose level was observed compared to the control group by 34.6% (p &lt; 0.05). Consumption of compositions in groups 1/9 and 2/9 led to a significant decrease in LDL and a significant decrease in total cholesterol level by 21.9% (p &lt; 0.05) and 18.8% (p &lt; 0.05) respectively compared to the control group. HDL was significantly higher in groups 1/9, 2/9 than in the control group. In CD-1 mice, group 2/9 showed the best result in glucose level (mean 5.78 mmol/l) among all groups receiving functional food compositions and the control group. The most pronounced decrease in LDL was observed in groups 1/9, 2/9 compared to the control group (p &lt; 0.05). HDL value in group 2/9 significantly exceeded the mean value in the control group, by 54.8% (p &lt; 0.05). Body mass of agouti-yellow mice and CD-1 mice in groups 1/1, 2/1, 1/9, and 2/9 significantly decreased compared to control groups. According to the results of histological examination of organs and tissues, functional food composition 2 turned out to be the most promising.Conclusion: According to the results of the study, the most promising composition was selected (composition 2). Feeding animals with this composition improved histological pictures of studied organs and tissues, biochemical blood parameters and effectively reduced body mass in both experimental animal lines, CD-1, and agouti-yellow mice, compared to the control groups. Keywords: CD-1 mice, agouti-yellow mice, experimental obesity, LDL, cholesterol

Alcohol and Circadian Disruption Minimally Impact Bone Properties in Two Cohorts of Male Mice While Between-Cohort Differences Predominate: Association With Season of Birth?

ABSTRACTMany lifestyle factors affect bone. Sleep deprivation increases risk for fractures and alcohol consumption can lead to alterations in the skeleton. How combined exposure to these two risk factors affects bone is unclear. Thus, we sought to determine the effects of circadian rhythm disruption and chronic alcohol intake on bone structure and mechanical properties in mice. A total of 120 male C57BL/6J mice were used in two cohorts of 60 mice each because of limited availability of light‐tight housing cabinets. One cohort was born in winter and the other in summer. Mice were randomly assigned to circadian disruption (weekly shifting of the light/dark cycle) and control (no shifting) groups beginning at 8 to 12 weeks of age for 12 weeks at which time mice were administered an alcohol‐containing or control diet for an additional 10 weeks. Bone structure and mechanical properties of the femur were assessed by micro‐computed tomography and three‐point bending, respectively. The initial data analysis revealed a likely cohort effect. Thus, we used a three‐way analysis of variance to assess the effects of circadian rhythm disruption, alcohol intake, and cohort. Circadian rhythm disruption alone had minimal effects on bone structure and mechanical properties. Alcohol intake reduced body mass and had minimal effects on cortical bone regardless of circadian disruption. Alcohol intake resulted in higher trabecular bone volume, but these beneficial effects were blunted when circadian rhythm was disrupted. Cohort significantly affected body size, many cortical bone structure outcomes, some trabecular bone structure outcomes, and tissue‐level material properties. Thus, cohort had the predominant effect on bone structure and mechanical properties in this study, with chronic alcohol intake and environmental circadian disruption having less consistent effects. The data indicate that season of birth may affect skeletal phenotypes and that studies requiring multiple cohorts should determine if a cohort effect exists. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.