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1.
Obesity (Silver Spring) ; 32(8): 1518-1525, 2024 08.
Artigo em Inglês | MEDLINE | ID: mdl-38894515

RESUMO

OBJECTIVE: This work aimed to parse out the role of changing environments on body composition, total energy expenditure, and physical activity in the Mexican Pima, a population experiencing rapid industrialization. METHODS: Using doubly labeled water, we compared energy expenditure and physical activity in a longitudinal cohort of Mexican Pima (n = 26; female: 12) in 1995 and 2010. Body mass and composition were assessed by bioimpedance analysis. To determine the effects of environmental factors on body weight independent of age, we compared the 1995 longitudinal cohort with an age- and sex-matched cross-sectional cohort (n = 26) in 2010. RESULTS: Body mass, fat mass, and fat-free mass all significantly increased between 1995 and 2010. Despite a 13% average increase in body weight, weight-adjusted total daily energy expenditure decreased significantly. Measured physical activity levels also decreased between 1995 and 2010, after we adjusted for weight. CONCLUSIONS: Our results suggest that the recent industrialization of the Maycoba region in Sonora, Mexico, has contributed to a decrease in physical activity, in turn contributing to weight gain and metabolic disease among the Mexican Pima.


Assuntos
Composição Corporal , Metabolismo Energético , Humanos , Metabolismo Energético/fisiologia , Feminino , Masculino , México , Estudos Transversais , Adulto , Estudos Longitudinais , Índice de Massa Corporal , Pessoa de Meia-Idade , Atividade Motora/fisiologia , Peso Corporal , Exercício Físico/fisiologia , Aumento de Peso/fisiologia , Adulto Jovem , Meio Ambiente , Obesidade/epidemiologia
2.
Br J Nutr ; 132(1): 13-20, 2024 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-38751244

RESUMO

A healthy diet is at the forefront of measures to prevent type 2 diabetes. Certain vegetable and fish oils, such as pine nut oil (PNO), have been demonstrated to ameliorate the adverse metabolic effects of a high-fat diet. The present study investigates the involvement of the free fatty acid receptors 1 (FFAR1) and 4 (FFAR4) in the chronic activity of hydrolysed PNO (hPNO) on high-fat diet-induced obesity and insulin resistance. Male C57BL/6J wild-type, FFAR1 knockout (-/-) and FFAR4-/- mice were placed on 60 % high-fat diet for 3 months. Mice were then dosed hPNO for 24 d, during which time body composition, energy intake and expenditure, glucose tolerance and fasting plasma insulin, leptin and adiponectin were measured. hPNO improved glucose tolerance and decreased plasma insulin in the wild-type and FFAR1-/- mice, but not the FFAR4-/- mice. hPNO also decreased high-fat diet-induced body weight gain and fat mass, whilst increasing energy expenditure and plasma adiponectin. None of these effects on energy balance were statistically significant in FFAR4-/- mice, but it was not shown that they were significantly less than in wild-type mice. In conclusion, chronic hPNO supplementation reduces the metabolically detrimental effects of high-fat diet on obesity and insulin resistance in a manner that is dependent on the presence of FFAR4.


Assuntos
Dieta Hiperlipídica , Metabolismo Energético , Resistência à Insulina , Insulina , Camundongos Endogâmicos C57BL , Camundongos Knockout , Obesidade , Pinus , Óleos de Plantas , Receptores Acoplados a Proteínas G , Animais , Masculino , Metabolismo Energético/efeitos dos fármacos , Receptores Acoplados a Proteínas G/metabolismo , Receptores Acoplados a Proteínas G/genética , Camundongos , Obesidade/metabolismo , Obesidade/etiologia , Insulina/sangue , Insulina/metabolismo , Óleos de Plantas/farmacologia , Óleos de Plantas/administração & dosagem , Nozes , Adiponectina/sangue , Leptina/sangue , Intolerância à Glucose/prevenção & controle , Aumento de Peso/efeitos dos fármacos , Ingestão de Energia/efeitos dos fármacos , Composição Corporal/efeitos dos fármacos
3.
HIV Med ; 25(7): 826-839, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38520085

RESUMO

INTRODUCTION: Although dolutegravir (DTG) is deemed stable, safe, cost-effective, and clinically beneficial, it also carries the risk of side effects, including observed weight gain among patients on DTG-based antiretroviral therapy (ART) regimens. We compared weight changes among adults (≥18 years) initiating tenofovir disoproxil fumarate, lamivudine, and dolutegravir (TLD) or tenofovir disoproxil fumarate, emtricitabine, and efavirenz (TEE) regimens and those switching from TEE to TLD (TEE-to-TLD switchers) in three large primary care facilities in South Africa METHODS: We conducted a retrospective longitudinal record review using patient medical records, extracting relevant demographic and clinical data from October 2018 to June 2021 from randomly selected adults who initiated TLD or TEE (initiators) and adult TEE-to-TLD switchers. We assessed weight, body mass index (BMI), and percentage weight changes for both groups and fitted linear regression and generalized linear models to determine factors associated with weight and BMI change and percentage weight change ≥10%, respectively, among treatment initiators. We fitted linear mixed-effect models among TEE-to-TLD switchers to consider repeated measures. RESULTS: Of 860 initiators, 450 (52.3%) initiated on TEE and 410 (47.7%) on TLD, with median follow-up of 1.4 years and 1.0 year, respectively. At initiation, 43.3% on TEE and 40.8% on TLD were overweight or obese. TLD initiators had an adjusted higher mean weight gain of 1.6 kg (p < 0.001) and mean BMI gain of 0.51 kg/m2 (p < 0.001) than TEE initiators. Independent risk factors for higher mean weight and BMI included age ≥50 years, male, on ART for >12 months, initial BMI of <18.5 kg/m2, and CD4 counts <200 cells/µL. Of 298 TEE-to-TLD switchers, 36.6% were overweight or obese at TEE initiation. Comparing before and after TLD switch, TEE-to-TLD switchers had an adjusted mean weight of 1.2 kg less while on TLD (p = 0.026). Being overweight and CD4 counts >350 cells/µL were independent risk factors for lower weight gain after TLD switch. CONCLUSIONS: We report more weight gain among TLD than among TEE initiators, although to a lesser extent than previously reported. TEE-to-TLD switchers experienced less weight gain after TLD switch; return to health before receiving TLD may be a contributory factor. The current findings are reassuring for those switching to a DTG-based regimen.


Assuntos
Alcinos , Benzoxazinas , Ciclopropanos , Infecções por HIV , Compostos Heterocíclicos com 3 Anéis , Oxazinas , Piridonas , Aumento de Peso , Humanos , Masculino , Feminino , Aumento de Peso/efeitos dos fármacos , Infecções por HIV/tratamento farmacológico , Adulto , África do Sul , Estudos Retrospectivos , Compostos Heterocíclicos com 3 Anéis/uso terapêutico , Compostos Heterocíclicos com 3 Anéis/efeitos adversos , Compostos Heterocíclicos com 3 Anéis/administração & dosagem , Oxazinas/uso terapêutico , Benzoxazinas/uso terapêutico , Benzoxazinas/efeitos adversos , Benzoxazinas/administração & dosagem , Pessoa de Meia-Idade , Piperazinas , Fármacos Anti-HIV/uso terapêutico , Fármacos Anti-HIV/efeitos adversos , Estudos Longitudinais , Índice de Massa Corporal , Lamivudina/uso terapêutico , Lamivudina/efeitos adversos , Lamivudina/administração & dosagem , Tenofovir/uso terapêutico , Tenofovir/efeitos adversos , Tenofovir/administração & dosagem , Emtricitabina/uso terapêutico , Emtricitabina/administração & dosagem
4.
PLoS One ; 19(3): e0295488, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38502648

RESUMO

This study was carried out to compare the impact of choline supplementation (available from two sources synthetic and natural) on various dosages in broilers. The mode of choline supplementation, via diet and additional sources, synthetic and natural, and the data of performance, carcass quality, blood parameters, and hepatic steatosis were compared. A total of 1050 day-old male Cobb 500 broiler chicks were randomly assigned to 10 treatments, using a completely randomized design model in a factorial scheme, with 6 replicates per treatment and 25 birds per replicate. Choline was supplemented using three sources: synthetic choline chloride 60% (CC), and two sources of natural choline A (NCA), and B (NCB). The Control treatment did not receive any choline supplementation. The diets were supplemented with low, intermediate and high doses of choline sources (400g/t, 800g/t, and 1200g/t of CC; 100g/t, 200g/t, and 300g/t of both NCA and NCB). Data analysis was performed using a factorial model to investigate the effects of choline supplementation (CC, NCA, NCB) and doses on the measured variables. Overall, the results indicated that the the performance of NCA was better than CC & NCB, specifically the dose of 100g/t of NCA outperformed MAR at 100g/t & CC at 400g/t, leading to a significant increase in body weight gain (85.66g & 168.84g respectively), and a noteworthy (9- & 12-point respectively) improvement in feed conversion ratio. Furthermore, NCA contributed to a reduction in steatosis when contrasted with various NCB & CC doses, likely due to the presence of curcumins and catechins in the natural choline source. These findings demonstrated that NCA supplementation yielded superior results compared to CC and NCB across both performance and liver health aspects in broilers aged 1 to 42 days. In conclusion, NCA can be used to replace the CC 60% without compromise on the zootechnical performance in broilers.


Assuntos
Galinhas , Dieta , Animais , Masculino , Ração Animal/análise , Colina/farmacologia , Dieta/veterinária , Suplementos Nutricionais , Aumento de Peso
5.
J Glob Health ; 14: 04035, 2024 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-38389438

RESUMO

Background: To our knowledge, no previous study has examined the role of index of economic freedom (IEF) in the prevalence of excess weight and obesity in adolescents. The aim of this study was to determine the association between both individual and contextual economic factors and the prevalence of overweight and obesity (i.e. excess weight) or obesity in adolescents from different countries. Methods: A cross-sectional study was carried out using data from the 2017/2018 wave of the Health Behaviour School-Aged Children study. Body mass index z-score was determined following the International Obesity Task Force criteria and, subsequently, excess weight and obesity were computed. The Family Affluence Scale was used to assess socioeconomic status. The index of IEF was used to estimate the benefits of economic freedom, both for individuals and for society as a whole. Results: An inverse association was shown between socioeconomic status (SES) and excess weight or obesity, with adolescents with high SES and medium SES being less likely to have excess weight compared to adolescents with low SES (medium SES: odds ratio (OR) = 0.79; 95% confidence interval (CI) = 0.77-0.82, P < 0.001; high SES: OR = 0.65; 95% CI = 0.62-0.68, P < 0.001). For obesity, lower odds were also found for adolescents with medium SES (medium SES: OR = 0.74; 95% CI = 0.69-0.80, P < 0.001) or high SES (high SES: OR = 0.55; 95% CI 0.49-0.61, P < 0.001), in comparison with their counterparts with low SES. On the other hand, it was observed a greater likelihood of having excess weight and obesity in mostly unfree countries (excess weight: OR = 0.72; 95% CI = 0.51-1.00, P = 0.052; obesity: OR = 0.60; 95% CI = 0.39-0.92, P = 0.019) compared to free/mostly free countries. These results remained significant after adjusting for several sociodemographic and lifestyle covariates. Conclusions: Both individual and contextual factors seem to have a crucial role in the prevalence of excess weight and obesity in adolescents.


Assuntos
Obesidade Infantil , Criança , Humanos , Adolescente , Obesidade Infantil/epidemiologia , Estudos Transversais , Sobrepeso/epidemiologia , Índice de Massa Corporal , Fatores Econômicos , Aumento de Peso
6.
J Med Internet Res ; 26: e50330, 2024 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-38416574

RESUMO

BACKGROUND: The prevalence of obesity and its associated comorbidities continue to rise in the United States. Populations who are uninsured and from racial and ethnic minority groups continue to be disproportionately affected. These populations also experience fewer clinically meaningful outcomes in most weight loss trials. Weight gain prevention presents a useful strategy for individuals who experience barriers to weight loss. Given the often-limited weight management resources available to patients in primary care settings serving vulnerable patients, evaluating interventions with pragmatic designs may help inform the design of comprehensive obesity care delivered in primary care. OBJECTIVE: This study aims to evaluate the effectiveness of Balance, a 2-arm, 12-month pragmatic randomized controlled trial of a digital weight gain prevention intervention, delivered to patients receiving primary care within federally qualified community health centers. METHODS: Balance was a 2-arm, 12-month pragmatic randomized controlled trial of a digital weight gain prevention intervention delivered to individuals who had a BMI of 25-40 kg/m2, spoke English or Spanish, and were receiving primary care within a network of federally qualified community health centers in North Carolina. The Balance intervention was designed to encourage behavioral changes that result in a slight energy deficit. Intervention participants received tailored goal setting and tracking, skills training, self-monitoring, and responsive health coaching from registered dietitians. Weight was measured at regular primary care visits and documented in the electronic health record. We compared the percentage of ≤3% weight gain in each arm at 24 months after randomization-our primary outcome-using individual empirical best linear unbiased predictors from the linear mixed-effects model. We used individual empirical best linear unbiased predictors from participants with at least 1 electronic health record weight documented within a 6-month window centered on the 24-month time point. RESULTS: We randomized 443 participants, of which 223 (50.3%) participants were allocated to the intervention arm. At baseline, participants had a mean BMI of 32.6 kg/m2. Most participants were Latino or Hispanic (n=200, 45.1%) or non-Latino or Hispanic White (n=115, 26%). In total, 53% (n=235) of participants had at least 1 visit with weight measured in the primary time window. The intervention group had a higher proportion with ≤3% weight gain at 6 months (risk ratio=1.12, 95% CI 0.94-1.28; risk difference=9.5, 95% CI -4.5 to 16.4 percentage points). This difference attenuated to the null by 24 months (risk ratio=1.00, 95% CI 0.82-1.20; risk difference=0.2, 95% CI -12.1 to 11.0 percentage points). CONCLUSIONS: In adults with overweight or obesity receiving primary care at a community health center, we did not find long-term evidence to support the dissemination of a digital health intervention for weight gain prevention. TRIAL REGISTRATION: ClinicalTrials.gov NCT03003403; https://clinicaltrials.gov/study/NCT03003403. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1186/s12889-019-6926-7.


Assuntos
Saúde Digital , Etnicidade , Adulto , Humanos , Grupos Minoritários , Aumento de Peso , Obesidade/prevenção & controle , Redução de Peso , Centros Comunitários de Saúde
7.
An Acad Bras Cienc ; 95(suppl 2): e20230351, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38198399

RESUMO

The objective of this study was to evaluate the effects of creep feeding during the pre-weaning stage on the performance of piglets at nursery phase, as well as to estimate the economic viability of its application. A total of 125 piglets were exposed to creep feeding and evaluated qualitatively regarding diet intake and quantitatively regarding weight gain. After determining the eaters and non-eaters' piglets, 48 of these animals were evaluated in the nursery phase. Piglets are blocked (initial weigh and sex) and divided into eaters (E, n=24) and non-eaters (NE, n=24). Time to start feed intake, growth performance data and economic viability were analyzed. At pre-weaning phase no weight difference was observed, and only 24.5% of piglets consumed the creep feed after 12 days of exposure. At nursery phase, the E group presented a 250% faster consumption in the first 24 hours of housing, 18.3% greater daily feed intake and 22.0% greater daily gain for whole experimental length, when compared to NE group. The economic evaluation demonstrated a 269% and 225% greater economic profit and return on investment for E. Therefore, the application of creep feeding in pre-weaning improves the piglets' performance during nursery phase and is economically viable.


Assuntos
Ingestão de Alimentos , Aumento de Peso , Animais , Suínos , Desmame
8.
Res Vet Sci ; 168: 105154, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38290405

RESUMO

An existing model was used to identify key drivers of profitability and estimate the impact on environmental sustainability when immunizing finishing pigs against GnRF with Improvac®. The model estimated performance and economic differences between immunized (IM) and non-IM pigs from the perspective of producers and packers, based on two recent meta-analyses in male and female pigs. It was populated with data from 9 countries in four continents (Europe, Asia, North and Latin-America). One-way sensitivity analyses (OWSA) were used to define key drivers of profitability. When changing the country specific input data over a range of ±20%, most OWSA did not reverse the mathematical sign of incremental net return between IM and non-IM pigs as calculated in base case analyses. Only the difference in feed conversion rate between IM and untreated female pigs was a key driver of profitability. The parameters with the highest impact on outcomes were similar across countries and expectable (feed costs), or explainable (parameters with statistical differences between IM and non-IM pigs in meta-analyses). In both single-gender herds, Improvac® reduced the environmental impact of pig production by improving feed efficiency (FE), the key driver of environmental burden. In a 50/50 mixed gender herd, IM pigs consumed less feed and gained more weight in 7 out of 9 countries; in the other two countries the FE calculated for the additional weight gain in IM pigs was >1.00, i.e., each additional kilogram of weight gain was associated with less than one additional kilogram of feed consumed.


Assuntos
Imunização , Vacinação , Suínos , Feminino , Masculino , Animais , Imunização/veterinária , Vacinação/veterinária , Hormônio Liberador de Gonadotropina , Aumento de Peso , Gonadotropinas
9.
Acad Pediatr ; 24(5): 832-836, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38190886

RESUMO

OBJECTIVE: To evaluate body mass index (BMI) change among a population of children with a high proportion residing in rural areas across two pandemic time periods. METHODS: Electronic health records were evaluated in a rural health system. INCLUSION CRITERIA: 2-17 years at initial BMI; >2 BMIs during pre-pandemic (January 1, 2018-February 29, 2020); >1 BMI in early pandemic (June 1, 2020-December 31, 2020); and >1 BMI in later pandemic (January 1, 2021-December 31, 2021). Mixed effects linear regression models were used to estimate average monthly rate of change in BMI slope (∆BMI) from pre-pandemic to pandemic and test for effect modification of sex, race/ethnicity, age, BMI, public insurance, and rural address. RESULTS: Among the 40,627 participants, 50.2% were female, 84.6% were non-Hispanic white, 34.9% used public insurance, and 42.5% resided in rural areas. The pre-pandemic proportion of children with overweight, obesity, and severe obesity was 15.6%, 12.8%, and 6.3%, respectively. The ∆BMI nearly doubled during the early pandemic period compared with the pre-pandemic period (0.102 vs 0.055 kg/m2), however, ∆BMI in the later pandemic was lower (0.040 vs 0.055 kg/m2). ∆BMI remained higher in the later pandemic for all race categories compared to Non-Hispanic white. Children with public insurance had higher ∆BMI compared to those with private insurance that remained higher in the later pandemic (0.051 vs 0.035 kg/m2). There was no significant difference between ∆BMI for rural and urban children during pandemic periods. CONCLUSIONS: Despite the decreased ∆BMI among children in the later pandemic, prevalence of obesity and severe obesity remain high. Efforts must continue to be made to limit excess weight gain during childhood and to assess the impact of forces like structural and social factors in both etiology and prevention.


Assuntos
Índice de Massa Corporal , COVID-19 , Obesidade Infantil , Humanos , COVID-19/epidemiologia , Feminino , Masculino , Criança , Obesidade Infantil/epidemiologia , Pré-Escolar , Adolescente , População Rural/estatística & dados numéricos , SARS-CoV-2 , Pandemias , Aumento de Peso
10.
J Am Nutr Assoc ; 43(3): 286-295, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38015050

RESUMO

OBJECTIVE: An imbalance between dietary energy intake and energy expenditure may result in body fat gain or obesity. Increasing resting energy expenditure (REE) is an attractive strategy for managing body fat gain. The objective of the current study was to generate proof-of-concept data on a synergistic composition (LN19183) of Citrus aurantifolia fruit rind (CA) and Theobroma cacao seed (TC) extracts to increase REE and reduce body fat gain in a high-fat diet (HFD)-fed rats. METHOD: In in vitro cell-based experiments, CA, TC, or LN19183 were tested for fibroblast growth factor 21 (FGF-21) production from 3T3-L1 mouse adipocytes. Uncoupling protein 1 (UCP-1) and beta3-adrenergic receptor (ß3-AR) protein expressions in LN19183-treated 3T3-L1 lysates were also tested. The 56-day in vivo study in male Sprague Dawley (SD) rats (age: 12-14 weeks; body weight [b.w.]: 115-197 g) contained 2 phases of 28 days each of induction and supplementation. Seven rats received a regular rodent diet (RD) over 56 days. In the induction phase, 21 rats received HFD; in the supplementation phase, the obese rats (n = 7) received either HFD alone or in concurrence with a daily oral dose of either 100 or 250 mg/kg b.w. of LN19183 for 28 days. RESULTS: In 3T3-L1 adipocytes, LN19183 synergistically increased FGF-21 production and dose-dependently increased ß3-AR and UCP-1 protein expression. In HFD-fed rats, both doses of LN19183 supplementation significantly (p < 0.05) decreased the body weight gain, total fat mass, and liver weight and increased (p < 0.05) REE. High-dose LN19183 also significantly (p < 0.05) increased fat oxidation and UCP-1 protein expression in white fat tissue and reduced liver triglyceride (TG) level. LN19183-supplemented groups substantially reduced serum TG and glucose levels compared to the HFD rats. CONCLUSIONS: LN19183 reduces body fat mass and weight gain via increased REE and fat oxidation in HFD-fed obese rats.


Assuntos
Adiposidade , Dieta Hiperlipídica , Ratos , Camundongos , Masculino , Animais , Dieta Hiperlipídica/efeitos adversos , Ratos Sprague-Dawley , Obesidade/tratamento farmacológico , Aumento de Peso , Metabolismo Energético
11.
Pediatr Obes ; 19(1): e13085, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37963589

RESUMO

OBJECTIVE: To estimate national and provincial prevalence of obesity and excess weight in the child and adolescent population in Spain by sex and sociodemographic characteristics, and to explore sources of inequalities in their distribution, and their geographical patterns. METHODS: ENE-COVID is a nationwide representative seroepidemiological survey (68 287 participants) stratified by province and municipality size (April-June 2020). Participants answered a questionnaire which collected self-reported weight and height, that allowed estimating crude and model-based standardized prevalences of obesity and excess weight in the 10 543 child and adolescent participants aged 2-17 years. RESULTS: Crude prevalences (WHO growth reference) were higher in boys than in girls (obesity: 13.4% vs. 7.9%; excess weight: 33.7% vs. 26.0%; severe obesity: 2.9% vs. 1.2%). These prevalences varied with age, increased with the presence of any adult with excess weight in the household, while they decreased with higher adult educational and census tract average income levels. Obesity by province ranged 1.8%-30.5% in boys and 0%-17.6% in girls; excess weight ranged 15.2%-49.9% in boys and 10.8%-40.8% in girls. The lowest prevalences of obesity and excess weight were found in provinces in the northern half of Spain. Sociodemographic characteristics only partially explained the observed geographical variability (33.6% obesity; 44.2% excess weight). CONCLUSIONS: Childhood and adolescent obesity and excess weight are highly prevalent in Spain, with relevant sex, sociodemographic and geographical differences. The geographic variability explained by sociodemographic variables indicates that there are other potentially modifiable factors on which to focus interventions at different geographic levels to fight this problem.


Assuntos
COVID-19 , Obesidade Infantil , Masculino , Criança , Adulto , Feminino , Humanos , Adolescente , Obesidade Infantil/epidemiologia , Obesidade Infantil/prevenção & controle , Espanha/epidemiologia , Prevalência , COVID-19/epidemiologia , COVID-19/prevenção & controle , Aumento de Peso , Escolaridade , Fatores Socioeconômicos
12.
Clin Nutr ESPEN ; 58: 263-269, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-38057015

RESUMO

BACKGROUND & AIMS: To determine which resting energy expenditure (REE) predictive equation has the lowest bias in the aggregate level in individuals with excess weight during weight loss interventions. METHODS: Searches were performed in MEDLINE, Web of Science, Scopus, CENTRAL and gray literature databases. Longitudinal studies on weight loss interventions which evaluated REE by predictive equations compared to that measured by indirect calorimetry in adults with excess weight at different follow-up times were included. Meta-analyses were performed with the differences between biases of predictive equations of the REE at the different follow-up times of weight loss. RESULTS: Of the total of 2178 occurrences found in the databases, only eight studies were included. The Harris-Benedict (1919) equation showed the smallest differences between bias up to the third month (MD = 103.33 kcal; 95%CI = -39.01; 245.67), in the sixth month (MD = 59.16 kcal; 95%CI = 8.74; 109.57) and at the 12th month (MD = -71.41 kcal; 95%CI = -150.38; 7.55) of weight loss follow-up. Weight loss does not seem to have an effect on bias at different follow-up times. CONCLUSION: Harris-Benedict (1919) equation seems to be the most adequate to assess the REE of individuals with excess weight during weight loss. However, the finding of large estimated predictive intervals may indicate that predictive equations may not be handy tools for individuals losing and regaining weight due to changes other than body weight.


Assuntos
Metabolismo Energético , Obesidade , Adulto , Humanos , Metabolismo Basal , Redução de Peso , Aumento de Peso
13.
Ter Arkh ; 95(8): 634-640, 2023 Oct 11.
Artigo em Russo | MEDLINE | ID: mdl-38158898

RESUMO

AIM: To evaluate the body mass index (BMI) in patients with chronic hepatitis C (CHC) with different stages of liver fibrosis and steatosis who received effective antiviral therapy (AVT). MATERIALS AND METHODS: The study included 278 CHC patients with a sustained virologic response (SVR) at the end of treatment. In addition to assessing the investigational data to determine the clinical status of the patient, we calculated BMI (following the World Health Organization guidelines) and determined the severity of liver fibrosis (F) and steatosis (S) using transient elastography. The patients were assessed at the start of antiviral therapy, after ≥6 months from the moment SVR was confirmed, and then every 12 to 24 months. RESULTS: By the end of the study, the mean patient age was 49 years, 53% of them were men, and 34% of the patients were obese. Excessive weight gain was registered in 17% (n=48) of the cases, with 60% newly diagnosed with Class 1 to 2 obesity. Both before the start of AVT and years after reaching SVR, the mean BMI corresponded to the reference pre-obesity values, the liver steatosis was significantly more often absent in normal BMI; on the contrary, fatty liver (predominantly S2 to S3) was registered in individuals with elevated BMI (p<0.0001). After the long-term period following a successful therapy, Stage F4 liver fibrosis patients were mainly diagnosed with obesity (80% versus 44% before AVT; p=0.0010). CONCLUSION: The high proportion of patients with elevated BMI and liver steatosis seen years after a successful CHC therapy indicates a continued risk of progression of chronic liver disease. Such patients should be advised on how important it is to change their lifestyle to reduce overweight and prevent weight gain. We also need long-term assessments of how liver steatosis changes over time and what are the outcomes associated with post-SVR increase in BMI.


Assuntos
Fígado Gorduroso , Hepatite C Crônica , Masculino , Humanos , Pessoa de Meia-Idade , Feminino , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/complicações , Antivirais/uso terapêutico , Índice de Massa Corporal , Fígado Gorduroso/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/etiologia , Cirrose Hepática/tratamento farmacológico , Obesidade/complicações , Obesidade/diagnóstico , Aumento de Peso
14.
BMC Res Notes ; 16(1): 346, 2023 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-38001467

RESUMO

IMPORTANCE: The prevalence of obesity among United States adults has increased from 30.5% in 1999 to 41.9% in 2020. However, despite the recognition of long-term weight gain as an important public health issue, there is a paucity of studies studying the long-term weight gain and building models for long-term projection. METHODS: A retrospective, cross-sectional cohort study using the publicly available National Health and Nutrition Examination Survey (NHANES 2017-2020) was conducted in patients who completed the weight questionnaire and had accurate data for both weight at time of survey and weight ten years ago. Multistate gradient boost modeling classifiers were used to generate covariate dependent transition matrices and Markov chains were utilized for multistate modeling. RESULTS: Of the 6146 patients that met the inclusion criteria, 3024 (49%) of patients were male and 3122 (51%) of patients were female. There were 2252 (37%) White patients, 1257 (20%) Hispanic patients, 1636 (37%) Black patients, and 739 (12%) Asian patients. The average BMI was 30.16 (SD = 7.15), the average weight was 83.67 kilos (SD = 22.04), and the average weight change was a 3.27 kg (SD = 14.97) increase in body weight (Fig. 1). A total of 2411 (39%) patients lost weight, and 3735 (61%) patients gained weight (Table 1). We observed that 87 (1%) of patients were underweight (BMI < 18.5), 2058 (33%) were normal weight (18.5 ≤ BMI < 25), 1376 (22%) were overweight (25 ≤ BMI < 30) and 2625 (43%) were obese (BMI > 30). From analysis of the transitions between normal/underweight, overweight, and obese, we observed that after 10 years, of the patients who were underweight, 65% stayed underweight, 32% became normal weight, 2% became overweight, and 2% became obese. After 10 years, of the patients who were normal weight, 3% became underweight, 78% stayed normal weight, 17% became overweight, and 2% became obese. Of the patients who were overweight, 71% stayed overweight, 0% became underweight, 14% became normal weight, and 15% became obese. Of the patients who were obese, 84% stayed obese, 0% became underweight, 1% became normal weight, and 14% became overweight. CONCLUSIONS: United States adults are at risk of transitioning from normal weight to becoming overweight or obese. Covariate dependent Markov chains constructed with gradient boost modeling can effectively generate long-term predictions.


Assuntos
Sobrepeso , Magreza , Adulto , Humanos , Masculino , Feminino , Estados Unidos , Sobrepeso/epidemiologia , Inquéritos Nutricionais , Estudos Retrospectivos , Magreza/epidemiologia , Estudos Transversais , Cadeias de Markov , Índice de Massa Corporal , Obesidade/epidemiologia , Aumento de Peso
15.
Sci Rep ; 13(1): 20338, 2023 11 20.
Artigo em Inglês | MEDLINE | ID: mdl-37990049

RESUMO

High body mass index (BMI), or excess body weight (EBW), represents a significant risk factor for a range of diseases, including cardiovascular diseases and cancers. The study sought to determine the burden of diseases attributable to EBW in the Middle East and North Africa (MENA) region from 1990 and 2019. The analysis also included an exploration of this burden by age, sex, underlying cause, and sociodemographic index (SDI). We utilized publicly available data from the Global Burden of Disease (GBD) study 2019 to identify the deaths and disability-adjusted life-years (DALYs) of diseases associated with EBW in MENA, spanning the period from 1990 to 2019. The GBD estimated the mean BMI and the prevalence of EBW using hierarchical mixed-effects regression, followed by spatiotemporal Gaussian process regression to determine the most accurate BMI distribution through comparison with actual data. In 2019, there were an estimated 538.4 thousand deaths (95% UI 369.9-712.3) and 17.9 million DALYs (12.9-23.1) attributable to EBW in the region. The DALYs attributable to EBW were higher in men (9.3 million [6.5-12.4]) than in women (8.5 million [6.4-10.8]). The age-standardized death and DALY rates for the diseases associated with EBW increased by 5.1% (- 9.0-25.9) and 8.3% (- 6.5-28.8), respectively, during the study period which was not significant. Egypt had the highest age-standardized mortality rate due to EBW (217.7 [140.0, 307.8]), while Yemen (88.6 [45.9, 143.5]) had the lowest. In 2019, the highest number of DALYs occurred among individuals aged 60 to 64 years old. Furthermore, we found a positive association between a nation's SDI and the age-standardized DALY rate linked to EBW. Cardiovascular disease emerged as the leading contributor to the EBW burden in MENA. The disease burden attributable to EBW showed a non-significant increase in MENA from 1990 to 2019.


Assuntos
Doenças Cardiovasculares , Carga Global da Doença , Masculino , Humanos , Feminino , Pessoa de Meia-Idade , Anos de Vida Ajustados por Qualidade de Vida , Fatores de Risco , África do Norte/epidemiologia , Oriente Médio/epidemiologia , Doenças Cardiovasculares/epidemiologia , Aumento de Peso , Saúde Global
16.
Int J Mol Sci ; 24(19)2023 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-37833865

RESUMO

Eimeria intestinalis infects rabbits, causing severe intestinal coccidiosis. Prolonged anticoccidial drug use might lead to coccidia resistance and drug residues in food. Thus, vaccines are required to control rabbit coccidiosis. In this study, recombinant E. intestinalis 14-3-3 and GRA10 proteins (rEi-14-3-3 and rEi-GRA10) were obtained via prokaryotic expression and used as recombinant subunit vaccines. Fifty 30-day-old rabbits were randomly grouped as follows: PBS-uninfected group, PBS-infected group, Trx-His-S control group, and rEi-14-3-3 and rEi-GRA10 immunized groups. The rabbits were subcutaneously immunized twice at 2-week intervals, challenged with 7 × 104 sporulated oocysts, and sacrificed 14 days later. The protective effects were assessed via clinical signs, relative weight gain, oocyst reduction, mean intestinal lesion score, ACI (anticoccidial index), cytokine, and specific antibody levels in sera. The rEi-14-3-3 and rEi-GRA10 groups had higher relative weight gain rates of 81.94% and 73.61% (p < 0.05), and higher oocyst reduction rates of 86.13% and 84.87% (p < 0.05), respectively. The two immunized groups had fewer intestinal lesions (p < 0.05) and higher IgG levels (p < 0.05). Higher levels of IL-2, IL-4, and IFN-γ cytokines in the rEi-14-3-3 group (p < 0.05) and a higher level of IFN-γ in the rEi-GRA10 group (p < 0.05) were observed. The ACI values of the rEi-14-3-3 and rEi-GRA10 groups were 168.24 and 159.91, with good and moderate protective effects, respectively. Both rEi-14-3-3 and rEi-GRA10 induced humoral immunity in the rabbits. In addition, rEi-14-3-3 induced Th1- and Th2-type immune responses. Both recombinant proteins were protective against E. intestinalis infection in rabbits, with rEi-14-3-3 showing a better protective effect.


Assuntos
Coccidiose , Eimeria , Doenças das Aves Domésticas , Vacinas Protozoárias , Animais , Coelhos , Proteínas 14-3-3 , Coccidiose/prevenção & controle , Coccidiose/veterinária , Citocinas , Oocistos , Vacinas Sintéticas , Aumento de Peso , Galinhas , Doenças das Aves Domésticas/prevenção & controle
17.
Braz J Biol ; 83: e274933, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37820209

RESUMO

Proper cultivation of heifers largely determines the optimal manifestation of the genetic productivity of animals. The purpose of this study was to identify the optimal technology for growing black-and-white heifers in the dairy period to realize the genetic potential in the conditions of the northern region of the Republic of Kazakhstan, namely the Kostanay region. To conduct experiments on the farm, two groups of heifers of 10 heads each were formed, immediately after their birth. The selected groups differed in feeding technologies: the control group received the diet adopted on the farm, the feeding technology was changed for the experimental group in order to increase the intensity of heifer growth. The live weight and linear body sizes of heifers were monitored monthly. The new technological scheme of cultivation for the experimental group of heifers included the rejection of dairy feed at the age of two months and the use of ViaCorn 4 starter compound feed, as well as the active use of juicy and coarse feeds, unlike the heifers of the control group who were fed dairy feed until the end of the dairy growing period (up to 6 months). The live weight, average daily gain and linear body sizes of heifers of the experimental group significantly exceeded similar indicators of peers of the control group. The superiority in average daily live weight gains over the heifers of the control group averaged 287.6 g over 6 months. The change in the technological scheme of feeding towards the rejection of dairy feeds at 2 months and the addition of a starter, as well as compliance with the technology of milking colostrum in newborn calves in the experimental group contributed to the better development of the axial and peripheral skeleton, chest organs of animals, which will create prerequisites for the formation of highly productive cows of a pronounced dairy type. The concentration of total protein in the blood of the heifers of the experimental groups at 2 months of age was higher than that of the control group peers by an average of 1.89 g/l and at the age of 6 months - by 3.37 g/l, which indicates a higher protein metabolism in the blood of the heifers of the experimental group.


Assuntos
Ração Animal , Dieta , Animais , Bovinos , Feminino , Ração Animal/análise , Dieta/veterinária , Comportamento Alimentar , Leite , Aumento de Peso
18.
Am J Physiol Regul Integr Comp Physiol ; 325(5): R576-R592, 2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37720996

RESUMO

Postnatal growth failure remains a significant problem for infants born prematurely, despite aggressive efforts to improve perinatal nutrition. Though often dysregulated in early life when children are born preterm, sodium (Na) homeostasis is vital to achieve optimal growth. We hypothesize that insufficient Na supply in this critical period contributes to growth restriction and programmed risks for cardiometabolic disease in later adulthood. Thus, we sought to ascertain the effects of prolonged versus early-life Na depletion on weight gain, body composition, food and water intake behaviors, and energy expenditure in C57BL/6J mice. In one study, mice were provided a low (0.04%)- or normal/high (0.30%)-Na diet between 3 and 18 wk of age. Na-restricted mice demonstrated delayed growth and elevated basal metabolic rate. In a second study, mice were provided 0.04% or 0.30% Na diet between 3 and 6 wk of age and then returned to standard (0.15%)-Na diet through the end of the study. Na-restricted mice exhibited growth delays that quickly caught up on return to standard diet. Between 6 and 18 wk of age, previously restricted mice exhibited sustained, programmed changes in feeding behaviors, reductions in total food intake, and increases in water intake and aerobic energy expenditure while maintaining normal body composition. Although having no effect in control mice, administration of the ganglionic blocker hexamethonium abolished the programmed increase in basal metabolic rate in previously restricted mice. Together these data indicate that early-life Na restriction can cause programmed changes in ingestive behaviors, autonomic function, and energy expenditure that persist well into adulthood.


Assuntos
Comportamento Alimentar , Sódio , Humanos , Gravidez , Feminino , Lactente , Criança , Camundongos , Animais , Camundongos Endogâmicos C57BL , Metabolismo Energético , Aumento de Peso , Peso Corporal
19.
Int J Nurs Stud ; 146: 104570, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37597457

RESUMO

OBJECTIVES: To investigate the efficacy of the Thai Health Improvement Profile intervention for preventing clinically significant weight gain in people with early stage psychosis. METHODS: We undertook a randomised controlled trial from 10/2018 to 05/2021. Participants with early stage psychosis (<5 year duration) were recruited using convenience sampling from the caseloads of community psychiatric nurses in Thailand and randomly allocated to either the Thai Health Improvement Profile intervention or treatment as usual group following baseline assessment. Outcome assessors were blind to group allocation, whereas participants were not. Participants in the intervention group received three monthly (five in total) systematic health checks using the Thai Health Improvement Profile tool, which was used to develop a personal health plan in collaboration with a family member/carer. Nurses supported participants to implement the health plan using behaviour change techniques derived from motivational interviewing. The treatment as usual group consisted of medication and psychosocial support, and no additional intervention was provided. The primary outcome was weight gain (defined as a greater or equal to 7 % increase in weight against baseline) within 1 year. RESULTS: Fifty-three participants were allocated to the intervention and an equal number to the treatment as usual group. Primary outcome data were available for 30 participants in each group at the 12 month follow-up. We undertook an intention to treat analysis with multiple imputation (to handle the missing data) for the primary outcome. The treatment as usual group was found to have higher odds than the Thai Health Improvement Profile intervention group of gaining ≥7 % of baseline body weight (OR = 6.52; 95 % CI: 1.88-22.65, p = 0.004). CONCLUSIONS: The Thai Health Improvement Profile intervention was effective at preventing weight gain in people with early stage psychosis at one year, though attrition was relatively high. The results highlight the need for community mental health nurses to adopt a holistic approach, the potential benefits of conducting regular comprehensive health checks and the importance of involving family members when aiming to improve the physical health of people diagnosed with early stage psychosis. A large definitive multi-site randomised controlled trial of the Thai Health Improvement Profile with a longer follow-up is now justified. TRIAL REGISTRATION: Prospectively registered with the Thai Clinical Trials Registry (reference: TCTR20180305002).


Assuntos
Transtornos Psicóticos , População do Sudeste Asiático , Humanos , Tailândia , Transtornos Psicóticos/terapia , Terapia Comportamental , Aumento de Peso , Análise Custo-Benefício
20.
Obes Rev ; 24(10): e13605, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37544655

RESUMO

The fear of weight gain is one of the main reasons for women not to initiate or to early discontinue hormonal contraception or menopausal hormone therapy. Resting energy expenditure is by far the largest component and the most important determinant of total energy expenditure. Given that low resting energy expenditure is a confirmed predictive factor for weight gain and consecutively for the development of obesity, research into the influence of sex steroids on resting energy expenditure is a particularly exciting area. The objective of this systematic review was to evaluate the effects of medication with natural and synthetic estrogens on resting energy expenditure in healthy normal weight and overweight women. Through complex systematic literature searches, a total of 10 studies were identified that investigated the effects of medication with estrogens on resting energy expenditure. Our results demonstrate that estrogen administration increases resting energy expenditure by up to +208 kcal per day in the context of contraception and by up to +222 kcal per day in the context of menopausal hormone therapy, suggesting a preventive effect of circulating estrogen levels and estrogen administration on weight gain and obesity development.


Assuntos
Estrogênios , Obesidade , Humanos , Feminino , Metabolismo Energético , Aumento de Peso , Sobrepeso
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