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1.
Adv Exp Med Biol ; 1460: 167-198, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39287852

RESUMO

Obesity-related co-morbidities decrease life quality, reduce working ability, and lead to early death. In the adult population, eating addiction manifests with excessive food consumption and the unrestrained overeating behavior, which is associated with increased risk of morbidity and mortality and defined as the binge eating disorder (BED). This hedonic intake is correlated with fat preference and the total amount of dietary fat consumption is the most potent risk factor for weight gain. Long-term BED leads to greater sensitivity to the rewarding effects of palatable foods and results in obesity fatefully. Increased plasma concentrations of non-esterified free fatty acids and lipid-overloaded hypertrophic adipocytes may cause insulin resistance. In addition to dietary intake of high-fat diet, sedentary lifestyle leads to increased storage of triglycerides not only in adipose tissue but also ectopically in other tissues. Lipid-induced apoptosis, ceramide accumulation, reactive oxygen species overproduction, endoplasmic reticulum stress, and mitochondrial dysfunction play role in the pathogenesis of lipotoxicity. Food addiction and BED originate from complex action of dopaminergic, opioid, and cannabinoid systems. BED may also be associated with both obesity and major depressive disorder. For preventing morbidity and mortality, as well as decreasing the impact of obesity-related comorbidities in appropriately selected patients, opiate receptor antagonists and antidepressant combination are recommended. Pharmacotherapy alongside behavioral management improves quality of life and reduces the obesity risk; however, the number of licensed drugs is very few. Thus, stereotactic treatment is recommended to break down the refractory obesity and binge eating in obese patient. As recent applications in the field of non-invasive neuromodulation, transcranial magnetic stimulation and transcranial direct current stimulation are thought to be important in image-guided deep brain stimulation in humans. Chronic overnutrition most likely provides repetitive and persistent signals that up-regulate inhibitor of nuclear factor kappa B (NF-κB) kinase beta subunit/NF-κB (IKKß/NF-κB) in the hypothalamus before the onset of obesity. However, how the mechanisms of high-fat diet-induced peripheral signals affect the hypothalamic arcuate nucleus remain largely unknown.


Assuntos
Hiperfagia , Obesidade , Humanos , Hiperfagia/fisiopatologia , Hiperfagia/psicologia , Obesidade/metabolismo , Obesidade/fisiopatologia , Transtorno da Compulsão Alimentar/terapia , Transtorno da Compulsão Alimentar/psicologia , Transtorno da Compulsão Alimentar/fisiopatologia , Animais , Comportamento Alimentar/fisiologia
2.
Nutrition ; 128: 112563, 2024 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-39303379

RESUMO

OBJECTIVES: Overnutrition, a leading cause of global mortality, has seen a significant rise in low- and middle-income countries, including sub-Saharan Africa. Despite emerging evidence linking overnutrition to non-communicable diseases, limited action has been taken to address this issue. While undernutrition studies have received more attention, research on overnutrition and women's health remains scarce in sub-Saharan Africa. Our study aims to assess the prevalence and associated factors of overnutrition among reproductive women in this region METHODS: We conducted a secondary analysis of 2019-2023 Demographic and Health Survey datasets in sub-Saharan Africa. Our study included a weighted sample of 65,161 women aged 15-49 y. Using a multilevel mixed-effects logistic regression model, we identified factors associated with overnutrition. The adjusted odds ratio, along with a 95% confidence interval and a significance level of p < 0.05, determined the statistical significance of the explanatory variables. RESULTS: The pooled prevalence of overnutrition among women of reproductive age in sub-Saharan Africa was 34.79% (95% CI: 34.42-35.16). Specifically, the prevalence of overweight and obesity was 21.81% and 12.99%, respectively. Women's educational status, age, media use, household wealth, urbanization, community poverty, and country income level were significantly associated with higher odds of overnutrition. CONCLUSIONS: The prevalence of overnutrition among women of reproductive age in sub-Saharan Africa is relatively high. Key factors associated with this issue include women's educational status, age, media utilization, household wealth, place of residence, community poverty level, and national income status. These multilevel determinants highlight the need for a comprehensive, evidence-based approach to address overnutrition in this population. Effective strategies should target individual behaviors while considering broader social, economic, and environmental contexts. Integrating overnutrition prevention into maternal and reproductive health services, as well as strengthening social protection measures, are recommended steps to tackle this growing challenge in sub-Saharan Africa.

3.
Am J Clin Nutr ; 120(4): 759-763, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39289146

RESUMO

Universal growth standards for under-five children, given the worldwide variation in healthy growth and several determinants of anthropometry, are imprecise measures of nutritional status, particularly when used cross-sectionally. In constructing the global-use WHO growth standard, linear growth differences between contributing sites and pooled mean were >0.2 SD in 37% of observations. Systematic reviews confirm even greater variability, notably amplified for weight-for-age and head-circumference-for-age metrics. Unsurprisingly, developed nations had higher, and LMICs lower, growth dimensions. Contextual growth references predict neonatal morbidities, pathological short stature, macrocephaly, cardiometabolic risk factors, and adult noncommunicable diseases better than the WHO standards. Child body composition also varies contextually, with greater adiposity despite comparable weights in South Asian populations. Thus, contextual references, though not the perfect solution, are better suited for everyday practice and nutrition policy. Growth standards should only be used as a screening for clinical judgments aided by precise biomarkers.


Assuntos
Estado Nutricional , Humanos , Pré-Escolar , Lactente , Desenvolvimento Infantil , Feminino , Recém-Nascido , Masculino , Antropometria , Organização Mundial da Saúde , Composição Corporal , Gráficos de Crescimento , Peso Corporal , Estatura , Saúde Global
4.
J Ren Nutr ; 2024 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-39179124

RESUMO

OBJECTIVE: This study aimed to determine if adapted Global Leadership Initiative on Malnutrition (GLIM) criteria can diagnose overnutrition, in addition to undernutrition, in hemodialysis patients. Additionally, it compared the adapted GLIM criteria with the subjective global assessment (SGA) for diagnosing undernutrition. METHODS: A cross-sectional, descriptive study design with an analytical component was utilized. An interviewer-administered questionnaire was completed with 116 adult participants from 2 public renal units in Cape Town. Data collection included demographic, medical, and anthropometric information, incorporating the established SGA tool and the adapted GLIM criteria. RESULTS: Of the participants, 58% were female, with a mean age of 41.04 years (SD 10.6). The primary causes of renal failure were hypertension (38%) and glomerular disease (33%). The median weight was 64.74 kg (IQR 16.4), and the mean body mass index (BMI) was 25.44 kg/m2 (SD 4.66). The prevalence of obesity was 20%, and undernutrition was 4% by BMI. Participants from Groote Schuur Hospital had a higher mean BMI (26.40, SD 4.9) than those from Tygerberg Hospital (P = .0033). Abdominal obesity prevalence was 51%, with a mean waist circumference of 87.06 cm (SD 11.37). Using SGA parameters, undernutrition prevalence was 26%, with all classified as SGA-B, compared to 22% by adapted GLIM. Adapted GLIM classified 69.83% as malnourished (overnutrition 47% and undernutrition 22%). For undernutrition, the adapted GLIM had a sensitivity of 75% (CI 64.04, 85.96), specificity of 77.78% (CI 67.26, 88.3), positive predictive value of 69.23% (CI 57.55, 80.91), and negative predictive value of 82.35% (CI 72.71, 92.00). Among those diagnosed with overnutrition by adapted GLIM, 89% were classified as well-nourished by SGA. CONCLUSION: The adapted GLIM criteria effectively assessed overnutrition as well as undernutrition in hemodialysis patients. It identified a significant proportion of patients misclassified as well-nourished by SGA who were actually overnourished. The adapted GLIM showed good sensitivity and specificity for diagnosing undernutrition in this population.

5.
Ann Glob Health ; 90(1): 51, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39132446

RESUMO

Background: Malnutrition has important short- and long-term consequences in children under age five. Malnutrition encompasses undernutrition, overnutrition, and the coexistence of both of them, known as the double burden of malnutrition (DBM). Objective: The aim of this study was to estimate the prevalence of undernutrition, overnutrition, and the DBM among these children at the national level and by living area in Panama. Methods: Data from the National Health Survey of Panama (ENSPA, Spanish acronym), a population-based, cross-sectional study carried out in 2019 were used. Stunting, wasting, overweight, and obesity were defined according to the cut-off points of the World Health Organization Growth Standards. Undernutrition was defined as being stunted only, wasted only or both; overnutrition was defined as being overweight only or obese only; and the DBM was defined as the co-occurence of stunting and overweight/obesity in the same child. Prevalence and general characteristics at the national level and by living area were weighted. Findings: The prevalence of undernutrition was 15.3% (95% confidence interval (CI) 13.4-17.3) at the national level and 36.6% (CI: 30.1-43.5) in indigenous areas. The prevalence of overnutrition was 10.2% (8.2-12.6) at the national level and 11.9% (CI: 8.5-16.3), 8.4% (CI: 6.5-10.7) and 8.7% (CI: 5.2-14.3) in urban, rural and indigenous areas, respectively. The DBM prevalence was 1.4% (CI: 1.0-2.1) at the national level and 2.7% (CI: 1.4-5.1) in indigenous areas. Conclusions: Undernutrition is still the most prevalent malnutrition condition in our country. Panama has the highest prevalence of overnutrition in Central America. The highest prevalence of undernutrition and DBM was found among children living in indigenous areas.


Assuntos
Transtornos do Crescimento , Desnutrição , Humanos , Panamá/epidemiologia , Pré-Escolar , Feminino , Masculino , Prevalência , Lactente , Estudos Transversais , Transtornos do Crescimento/epidemiologia , Desnutrição/epidemiologia , Transtornos da Nutrição Infantil/epidemiologia , Hipernutrição/epidemiologia , Síndrome de Emaciação/epidemiologia , Inquéritos Epidemiológicos , Obesidade Infantil/epidemiologia , Sobrepeso/epidemiologia , População Rural/estatística & dados numéricos
6.
Clin Nutr ESPEN ; 63: 417-426, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39002131

RESUMO

BACKGROUND & AIMS: Weight loss in individuals with obesity and overweight leads to metabolic and health benefits but also poses the risk of muscle mass reduction. This systematic review and meta-analysis of randomized controlled trials aims to determine the initial protein amount necessary for achieving weight loss while maintaining muscle mass, strength, and physical function in adults with overweight and obesity. METHODS: Relevant literature databases, including Medical Literature Analysis and Retrieval System Online (Medline), Excerpta Medica (Embase), the Cumulative Index to Nursing and Allied Health Literature (CINHAL), and Web of Science, were electronically searched up to 15 March 2023. We examined the effect of additional protein intake on muscle mass, strength, and physical function in adults with overweight or obesity targeting weight loss. The risk of bias was assessed using the Cochrane RoB 2.0 tool. Results were synthesized using standardized mean differences (SMD) and 95% confidence intervals (CI) via a random-effects model. RESULTS: Forty-seven studies (n = 3218) were included. In the muscle mass analysis, twenty-eight trials with 1989 participants were encompassed. Results indicated that increased protein intake significantly prevents muscle mass decline in adults with overweight or obesity aiming for weight loss (SMD 0.75; 95% CI 0.41 to 1.10; p < 0.001). Enhanced protein intake did not significantly prevent decreases in muscle strength and physical function. An intake exceeding 1.3 g/kg/day is anticipated to increase muscle mass, while an intake below 1.0 g/kg/day is associated with a higher risk of muscle mass decline. The risk of bias in studies regarding muscle mass ranged from low to high. CONCLUSIONS: Adults with overweight or obesity and aim for weight loss can more effectively retain muscle mass through higher protein intake, as opposed to no protein intake enhancement.


Assuntos
Proteínas Alimentares , Força Muscular , Obesidade , Sobrepeso , Humanos , Proteínas Alimentares/administração & dosagem , Adulto , Músculo Esquelético , Redução de Peso , Ensaios Clínicos Controlados Aleatórios como Assunto
7.
Biol Sport ; 41(3): 243-266, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38952914

RESUMO

This systematic review aims to provide a summary of the results from individual studies that specifically focused on overweight or obese populations, regardless of age or sex. The goal is to determine the effects of structured recreational team sports interventions (TSG) on metabolic health, body composition and physical fitness parameters when compared to passive or active control groups. This study adhered to the PRISMA guidelines for reporting a systematic review. A thorough examination of relevant literature was conducted on November 06, 2023, using three prominent databases: PubMed, Scopus, and the Web of Science. Inclusion criteria considered overweight (e.g., BMI 25.0-29.9 kg/m2) and obese (e.g., BMI > 30 kg/m2) populations exposed to training interventions using recreational team sports, while the comparator group consisted of the same populations not exposed to exercise (passive controls) or exposed to alternative training methods. The primary outcomes of interest were metabolic health parameters (glucose, waist circumference, blood pressure, cholesterol, triglycerides), body composition (e.g., fat mass, lean mass), as well as physical fitness parameters (e.g., aerobic fitness, muscular fitness). Only studies with two- or multi-arm designs, whether randomized or not, were eligible for inclusion. The PEDro scale was used to assess the methodological bias of the included studies. Out of the initial 275 titles retrieved, we deemed ten eligible for our study. In terms of body composition, TSG demonstrated a significant decrease in body mass index across three studies (-2.3 to -5.1%) and a significant reduction in waist circumference in four studies (-4.6% to -8.4%). Regarding blood pressure, TSG exhibited a significant decrease in systolic blood pressure in two studies (-3.9% to -8.3%), while diastolic blood pressure showed a significant decrease in only one study (-7.3%). Cholesterol levels saw a significant decrease in TSG in three studies (-7.0% to -9.7%), and triglyceride levels showed a significant reduction in four studies (-16.4% to -20.1%). In terms of aerobic fitness, TSG demonstrated within-group improvements in the field-based tests in three studies (8.1% to 79.0%), and within-group improvements in maximal oxygen uptake in four studies (6.5% to 31.0%), with significant favoring of TSG in most studies. Overall, TSG demonstrated significant benefits for overweight and obese populations compared to the control group, particularly in terms of improvements in body mass index, systolic blood pressures, cholesterol and triglyceride levels, and aerobic fitness. Future research ought to concentrate on tailoring responses to varying training volumes on an individualized basis.

8.
BMC Public Health ; 24(1): 1764, 2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38956547

RESUMO

INTRODUCTION: The prevailing nutritional conditions and the triple challenge of malnutrition faced by adolescents have adverse consequences for both the present and future generations' health and nutrition. Summarizing the available research on the nutritional status and dietary habits of adolescents in Nigeria is crucial. OBJECTIVE: This study aims to systematically evaluate available literature on the nutritional status of adolescent aged 10 to 19years in Nigeria. METHODOLOGY: A systematic search using PRISMA guideline was conducted. Three electronic databases were searched i.e., PubMed, Web of Science and Scopus using specific terms and keywords for online articles published between 2013 and 2023. After applying specified inclusion and exclusion criteria, 51 articles were selected for data extraction, synthesis and quality assessment. RESULTS: Of the 51 included studies, 78.4% were conducted in the Southern Nigeria, 11.8% in the Northern Nigeria and 9.8% included both regions. The prevalence of overweight ranged between 0.8 and 31% and obesity ranged between 0.1 and 14%. The prevalence of thinness, stunting and underweight ranged between 3 and 31%, 0.4 to 41.6%, 0.3 to 73.3% respectively. The review also identified an inadequate intake of essential nutrients including iron, zinc, calcium, vitamin A, C, D, niacin, thiamin, riboflavin, cobalamin, and folate, with vitamin A deficiency prevalence ranges from 44 to 96%. The dietary patterns were characterized by a high consumption of cereals grains and starchy foods, low animal proteins, fast-food with soft drinks, and limited consumption of fruits and vegetables along with meal skipping. CONCLUSION: These findings portray a complex picture of the nutritional challenges faced by this demographic group, highlighting both undernutrition and overnutrition, poor eating behaviour and micronutrient deficiency as significant concerns. The review revealed regional disparities in research representation, with a concentration of studies in Southern Nigeria. This highlights the importance of directing research efforts toward the northern regions, where the prevalence of nutritional issues is equally severe, but less studied. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42023481095.


Assuntos
Estado Nutricional , Humanos , Nigéria/epidemiologia , Adolescente , Criança , Dieta/estatística & dados numéricos , Adulto Jovem , Comportamento Alimentar , Desnutrição/epidemiologia , Masculino , Feminino , Prevalência
9.
Genes (Basel) ; 15(6)2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38927640

RESUMO

This study investigated the transcriptomic responses of subcutaneous adipose tissue (SAT) and liver in newborn Hanwoo calves subjected to maternal overnutrition during mid- to late gestation. Eight Hanwoo cows were randomly assigned to control and treatment groups. The treatment group received a diet of 4.5 kg of concentrate and 6.5 kg of rice straw daily, resulting in intake levels of 8.42 kg DMI, 5.69 kg TDN, and 0.93 kg CP-higher than the control group (6.07 kg DMI, 4.07 kg TDN, and 0.65 kg CP), with respective NEm values of 9.56 Mcal and 6.68 Mcal. Following birth, newly born calves were euthanized humanely as per ethical guidelines, and SAT and liver samples from newborn calves were collected for RNA extraction and analysis. RNA sequencing identified 192 genes that were differentially expressed in the SAT (17 downregulated and 175 upregulated); notably, HSPA6 emerged as the most significantly upregulated gene in the SAT and as the singular upregulated gene in the liver (adj-p value < 0.05). Additionally, differential gene expression analysis highlighted extensive changes across genes associated with adipogenesis, fibrogenesis, and stress response. The functional enrichment pathway and protein-protein interaction (PPI) unraveled the intricate networks and biological processes impacted by overnutrition, including extracellular matrix organization, cell surface receptor signaling, and the PI3K-Akt signaling pathway. These findings underscore maternal overnutrition's substantial influence on developmental pathways, suggesting profound cellular modifications with potential lasting effects on health and productivity. Despite the robust insights that are provided, the study's limitations (sample size) underscore the necessity for further research.


Assuntos
Animais Recém-Nascidos , Fígado , Hipernutrição , Gordura Subcutânea , Transcriptoma , Animais , Feminino , Gravidez , Fígado/metabolismo , Hipernutrição/genética , Bovinos , Gordura Subcutânea/metabolismo , Perfilação da Expressão Gênica/métodos
10.
Int Health ; 2024 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-38850065

RESUMO

BACKGROUND: Overweight and obesity continue to escalate, despite the regulations and interventions that have been put in place. To support further policy directions, it is necessary to have pooled data that illustrate the burden of overweight and obesity among adolescents nowadays. Thus, this systematic review and meta-analysis aimed to determine the burden of overweight and obesity among Ethiopian adolescents. METHODS: Embase, Science Direct, Medline, PubMed, Google Scholar and Web of Science were the databases used in the search for publications that ran from inception until 25 October 2023. STATA version 18 was used to analyze data on overweight and obesity in adolescents. Using the random effect model, the pooled estimates with 95% CIs were calculated. Using the Galbraith plot, I2 statistics and Cochrane Q statistics, heterogeneity was investigated. RESULTS: In total, 20145 adolescents aged 10-19 years were included in this meta-analysis study. The pooled prevalence of overweight and obesity among adolescents in Ethiopia was 10% (95% CI 9 to 12%; I2=94.03%). There was a substantial correlation between being female (OR=1.81, 95% CI 1.47 to 2.15), attending private schools (OR=1.78, 95% CI 1.31 to 2.26), having a family size of ≥4 (OR=1.86, 95% CI 1.14 to 2.58) and being of middle economic status (OR=1.62, 95% CI 1.14 to 2.10). CONCLUSIONS: In Ethiopia, one in 10 adolescents is overweight/obese. The study's findings clearly show that a large number of adolescents are dealing with this emerging public health issue. Moreover, characteristics related to physical activity, nutrition and sociodemographics were discovered to be associated with overweight and obesity. To lessen the burden of overweight and obesity, the government and other parties should work together to support gender-specific nutritional interventions, encourage healthy lifestyle choices among teenagers and facilitate these efforts.

11.
Eng Life Sci ; 24(5): 2300070, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38708416

RESUMO

Childhood malnutrition is a metabolic condition that affects the physical and mental well-being of children and leads to resultant disorders in maturity. The development of childhood malnutrition is influenced by a number of physiological and environmental factors including metabolic stress, infections, diet, genetic variables, and gut microbiota. The imbalanced gut microbiota is one of the main environmental risk factors that significantly influence host physiology and childhood malnutrition progression. In this review, we have evaluated the gut microbiota association with undernutrition and overnutrition in children, and then the quantitative and qualitative significance of gut dysbiosis in order to reveal the impact of gut microbiota modification using probiotics, prebiotics, synbiotics, postbiotics, fecal microbiota transplantation, and engineering biology methods as new therapeutic challenges in the management of disturbed energy homeostasis. Understanding the host-microbiota interaction and the remote regulation of other organs and pathways by gut microbiota can improve the effectiveness of new therapeutic approaches and mitigate the negative consequences of childhood malnutrition.

12.
Int J Mol Sci ; 25(10)2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38791525

RESUMO

The worldwide incidence of prediabetes/type 2 has continued to rise the last 40 years. In the same period, the mean daily energy intake has increased, and the quality of food has significantly changed. The chronic exposure of pancreatic ß-cells to calorie excess (excessive energy intake) and food additives may increase pancreatic insulin secretion, decrease insulin pulses and/or reduce hepatic insulin clearance, thereby causing chronic hyperinsulinemia and peripheral insulin resistance. Chronic calorie excess and hyperinsulinemia may promote lipogenesis, inhibit lipolysis and increase lipid storage in adipocytes. In addition, calorie excess and hyperinsulinemia can induce insulin resistance and contribute to progressive and excessive ectopic fat accumulation in the liver and pancreas by the conversion of excess calories into fat. The personal fat threshold hypothesis proposes that in susceptible individuals, excessive ectopic fat accumulation may eventually lead to hepatic insulin receptor resistance, the loss of pancreatic insulin secretion, hyperglycemia and the development of frank type 2 diabetes. Thus, type 2 diabetes seems (partly) to be caused by hyperinsulinemia-induced excess ectopic fat accumulation in the liver and pancreas. Increasing evidence further shows that interventions (hypocaloric diet and/or bariatric surgery), which remove ectopic fat in the liver and pancreas by introducing a negative energy balance, can normalize insulin secretion and glucose tolerance and induce the sustained biochemical remission of type 2 diabetes. This pathophysiological insight may have major implications and may cause a paradigm shift in the management of type 2 diabetes: avoiding/reducing ectopic fat accumulation in the liver and pancreas may both be essential to prevent and cure type 2 diabetes.


Assuntos
Diabetes Mellitus Tipo 2 , Hiperinsulinismo , Hipernutrição , Humanos , Hiperinsulinismo/metabolismo , Hiperinsulinismo/complicações , Hiperinsulinismo/etiologia , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/etiologia , Hipernutrição/complicações , Resistência à Insulina , Tecido Adiposo/metabolismo , Animais , Fígado/metabolismo , Fígado/patologia , Insulina/metabolismo , Pâncreas/metabolismo , Pâncreas/patologia
14.
Biology (Basel) ; 13(4)2024 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-38666853

RESUMO

Overnutrition, driven by the consumption of high-fat, high-sugar diets, has reached epidemic proportions and poses a significant global health challenge. Prolonged overnutrition leads to the deposition of excessive lipids in adipose and non-adipose tissues, a condition known as lipotoxicity. The intricate interplay between overnutrition-induced lipotoxicity and the immune system plays a pivotal role in the pathogenesis of various diseases. This review aims to elucidate the consequences of impaired efferocytosis, caused by lipotoxicity-poisoned macrophages, leading to chronic inflammation and the subsequent development of severe infectious diseases, autoimmunity, and cancer, as well as chronic pulmonary and cardiovascular diseases. Chronic overnutrition promotes adipose tissue expansion which induces cellular stress and inflammatory responses, contributing to insulin resistance, dyslipidemia, and metabolic syndrome. Moreover, sustained exposure to lipotoxicity impairs the efferocytic capacity of macrophages, compromising their ability to efficiently engulf and remove dead cells. The unresolved chronic inflammation perpetuates a pro-inflammatory microenvironment, exacerbating tissue damage and promoting the development of various diseases. The interaction between overnutrition, lipotoxicity, and impaired efferocytosis highlights a critical pathway through which chronic inflammation emerges, facilitating the development of severe infectious diseases, autoimmunity, cancer, and chronic pulmonary and cardiovascular diseases. Understanding these intricate connections sheds light on potential therapeutic avenues to mitigate the detrimental effects of overnutrition and lipotoxicity on immune function and tissue homeostasis, thereby paving the way for novel interventions aimed at reducing the burden of these multifaceted diseases on global health.

15.
Sci Rep ; 14(1): 7781, 2024 04 02.
Artigo em Inglês | MEDLINE | ID: mdl-38565589

RESUMO

Overnutrition is a recognized risk factor for hypertension, but evidence is lacking among hypertensive patients for tailored dietary interventions. This study assessed dietary factors in 331 hypertensive patients in southwest Ethiopia. The data was collected through a questionnaire and analyzed using factor analysis. Body mass index (BMI) was calculated, and a BMI above 25 kg m-2 was considered overnutrition. An ordinal logistic regression model was used to model the data and control confounders. Adjusted odds ratio and p-values were reported. Among the 331 respondents, consumption of cereals and grains (57.0%); roots and tubers (58.5); and legumes (50.0%), while 28.6% drink alcohol, was common. About 29.0% (24.1-34.2) had overnutrition (22%, 17.6-26.6%, overweight and 7.0%, 4.5-10.3%, obesity). While the predicted odds of overnutrition were higher among males (AOR = 2.85; 1.35-6.02), married (AOR = 1.47; 0.69-3.12), illiterates (AOR = 2.09; 1.18-3.72), advanced age (AOR = 1.65; 0.61-4.61), government employees (AOR = 6.83; 1.19-39.2), and urban dwellers (AOR = 4.06; 1.76-9.36), infrequent vegetable consumption (AOR = 1.47; 0.72-2.96) and lower and higher terciles of cereals and animal-source food consumption (AOR = 1.56; 0.72-3.34). Overnutrition among hypertensive patients was significantly high and associated with unhealthy dietary consumption, educational status, residence, and occupation, emphasizing the need for targeted dietary counseling.


Assuntos
Hipertensão , Hipernutrição , Masculino , Humanos , Etiópia/epidemiologia , Dieta , Hipertensão/epidemiologia , Fatores de Risco , Hipernutrição/epidemiologia , Verduras
16.
BMC Public Health ; 24(1): 960, 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38575928

RESUMO

BACKGROUND: Childhood malnutrition in all forms is a major public health issue worldwide. This review systematically examined the prevalence and determinants and identify the potential interventions and current gap in addressing malnutrition including undernutrition, overnutrition and micronutrient deficiencies (MNDs) in Vietnamese children aged 0-18 years old. METHODS: Embase, Scopus, PubMed, and Web of Science were systematically searched through June 2022 to identify relevant articles published within the past 25 years. Study selection and data extraction were performed by one reviewer and checked for accuracy by the other two reviewers in accordance with PRISMA guideline. Risk of publication bias was assessed using American Dietetic Association Quality Criteria Checklist. RESULTS: Seventy-two studies that met the inclusion criteria were included. Undernutrition has decreased over time but still 22.4%, 5.2% and 12.2% of children under 5 were stunted, wasted and underweight, respectively. Anaemia, iron, zinc, and vitamin D deficiencies were the more common forms of MNDs, the prevalence varied by age, region, and socioeconomic group. Population-based surveys reported that 11% and 48% of children aged 0-11 years old were iron and vitamin D deficient, respectively. Zinc deficiency affected almost one-quarter of the children and adolescents. Retinol deficiency was of less concern (< 20%). However, more evidence on MNDs prevalence is needed. Overweight and obesity is now on the rise, affecting one-third of school-aged children. The key determinants of undernutrition included living in rural areas, children with low birth weight, and poor socio-economic status, whereas living in urban and affluent areas, having an inactive lifestyle and being a boy were associated with increased risk of overweight and obesity. Nutrition specific intervention studies including supplementation and food fortification consistently showed improvements in anthropometric indices and micronutrient biomarkers. National nutrition-sensitive programmes also provided nutritional benefits for children's growth and eating behaviours, but there is a lack of data on childhood obesity. CONCLUSION: This finding highlights the need for effective double duty actions to simultaneously address different forms of childhood malnutrition in Vietnam. However, evidence on the potential intervention strategies, especially on MNDs and overnutrition are still limited to inform policy decision, thus future research is warranted.


Assuntos
Desnutrição , Hipernutrição , Adolescente , Criança , Pré-Escolar , Humanos , Lactente , Recém-Nascido , Ferro , Desnutrição/epidemiologia , Desnutrição/complicações , Micronutrientes , Estado Nutricional , Hipernutrição/complicações , Hipernutrição/epidemiologia , Sobrepeso/epidemiologia , Obesidade Infantil/epidemiologia , Prevalência , Vietnã/epidemiologia , Zinco
17.
J Hum Nutr Diet ; 37(3): 804-814, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38664916

RESUMO

Nutrition has played a central role in the management and outcomes of people with cystic fibrosis (pwCF) since the 1970s. Advances in therapies and practices in recent decades have led to a significant change in the patient landscape with dramatic improvements in life expectancy, as well as quality of life, bringing with it new issues. Historically, cystic fibrosis was a condition associated with childhood and malnutrition; however, changes in patient demographics, nutritional assessment and fundamental nutritional management have evolved, and it has become an increasingly prevalent adult disease with new nutritional challenges, including obesity. This paper aims to describe these changes and the impact and challenges they bring for those working in this field. Nutritional professionals will need to evolve, adapt and remain agile to the wider range of situations and support required for a new generation of pwCF. Specialised nutrition support will continue to be required, and it will be additionally important to improve and optimise quality of life and long-term health.


Assuntos
Fibrose Cística , Qualidade de Vida , Humanos , Fibrose Cística/complicações , Fibrose Cística/dietoterapia , Fibrose Cística/terapia , Criança , Estado Nutricional , Desnutrição/etiologia , Desnutrição/prevenção & controle , Desnutrição/terapia , Avaliação Nutricional , Apoio Nutricional/métodos , Terapia Nutricional/métodos , Adolescente
18.
J Physiol Biochem ; 80(2): 407-420, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38492180

RESUMO

Current study investigated the impact of maternal and postnatal overnutrition on phenotype of adipose, in relation to offspring thermogenesis and sex. Female C57BL/6 J mice were fed with CHOW or high fat diet (HFD) for 2 weeks before mating, throughout gestation and lactation. At weaning, pups were fed to 9 weeks old with CHOW or HFD, which resulted in four groups for each gender--male or female: CHOW-CHOW (CC), CHOW-HFD (CH), HFD-CHOW (HC), HFD-HFD (HH). Maternal and post-weaning HFD enhanced thermogenic factors such as Acox1, Dio2 and Cox8b in iBAT of male and female offspring, but increased SIRT1, PGC-1α and UCP1 only in female. However, Acox1, Dio2 and Cox8b mRNA expression and SIRT1, PGC-1α and UCP1 protein expression were only enhanced upon maternal and post-weaning HFD in sWAT and pWAT of female offspring. Increased metrnl expression in adipose were observed in sex- and depot-specific manner, while enhanced circulating metrnl level was only observed in male offspring undergoing maternal HFD. Palmitic acid changed metrnl expression during preadipocytes differentiation and siRNA-mediated knockdown of metrnl inhibited preadipocyte differentiation. Female offspring were more prone to resist adverse outcomes induced by maternal and post-weaning overnutrition, which probably related to metrnl expression and thermogenesis.


Assuntos
Dieta Hiperlipídica , Fatores de Crescimento Neural , Hipernutrição , Termogênese , Animais , Feminino , Masculino , Camundongos , Gravidez , Tecido Adiposo/metabolismo , Dieta Hiperlipídica/efeitos adversos , Fenômenos Fisiológicos da Nutrição Materna , Camundongos Endogâmicos C57BL , Hipernutrição/metabolismo , Efeitos Tardios da Exposição Pré-Natal/metabolismo , Proteínas de Ligação a RNA/metabolismo , Proteínas de Ligação a RNA/genética , Proteína Desacopladora 1/metabolismo , Proteína Desacopladora 1/genética , Fatores de Crescimento Neural/genética , Fatores de Crescimento Neural/metabolismo
19.
Nutrients ; 16(4)2024 Feb 16.
Artigo em Inglês | MEDLINE | ID: mdl-38398867

RESUMO

This systematic review aimed to analyze the available studies that identified overweight and/or obesity as a risk factor for mortality, use of respiratory support, and changes in biochemical markers in adults hospitalized with SARS-CoV-2. The PubMed, Web of Science, and Scopus databases were searched using PRISMA guidelines until January 2024. The protocol was registered with PROSPERO (code: CRD42024501551). Of the 473 articles, only 8 met the inclusion criteria (e.g., adult individuals aged 18 or over diagnosed with COVID-19 individuals with overweight and/or obesity). In addition, the Downs and Black tool was used to assess the quality of the studies. The studies analyzed totaled 9782 adults hospitalized for COVID-19, indicating that overweight and obesity are present in more than half of adults. Diseases such as diabetes mellitus and hypertension are more prevalent in adults with obesity. The systematic review also highlighted that a higher incidence of respiratory support is related to a higher incidence of hospitalization in intensive care units and that adults with overweight and obesity have a higher risk of mortality from COVID-19. Biochemical markers such as procalcitinin, C-reactive protein, and interleukin-6 are associated with the severity of COVID-19 infection. This systematic review exposed overweight and/or obesity as a risk factor for worse COVID-19 disease, as well as for the need for intensive care, respiratory support, mortality, and changes in essential blood markers.


Assuntos
COVID-19 , SARS-CoV-2 , Adulto , Humanos , Biomarcadores , COVID-19/complicações , Obesidade/complicações , Obesidade/epidemiologia , Sobrepeso/complicações , Fatores de Risco
20.
Clin Nutr ; 43(2): 366-378, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38142481

RESUMO

BACKGROUND & AIMS: Hyperglycemia is associated with lipid disorders in patients with diabetes. Ceramides are metabolites involved in sphingolipid metabolism that accumulate during lipid disorders and exert deleterious effects on glucose and lipid metabolism. However, the effects of ceramide on glucagon-mediated hepatic gluconeogenesis remain largely unknown. This study was designed to investigate the impact of ceramides on gluconeogenesis in the context of the hepatic glucagon response, with the aim of finding new pharmacological interventions for hyperglycemia in diabetes. METHODS: Liquid chromatography-mass spectrometry was used to quantify ceramide content in the serum of patients with diabetes. Primary hepatocytes were isolated from male C57BL/6J mice to study the effects of ceramide on hepatic glucose production. Immunofluorescence staining was performed to view cAMP-responsive element-binding protein (CREB)- regulated transcription co-activator 2 (CRTC2) nuclear translocation in hepatocytes. Serine palmitoyl-transferase, long chain base subunit 2 (Sptlc2) knockdown mice were generated using an adeno-associated virus containing shRNA, and hepatic glucose production was assessed glucagon tolerance and pyruvate tolerance tests in mice fed a normal chow diet and high-fat diet. RESULTS: Increased ceramide levels were observed in the serum of patients newly diagnosed with type 2 diabetes. De novo ceramide synthesis was activated in mice with metabolic disorders. Ceramide enhanced hepatic glucose production in primary hepatocytes. In contrast, genetic silencing of Sptlc2 prevented this process. Mechanistically, ceramides de-phosphorylate CRTC2 (Ser 171) and facilitate its translocation into the nucleus for CREB activation, thereby augmenting the hepatic glucagon response. Hepatic Sptlc2 silencing blocked ceramide generation in the liver and thus restrained the hepatic glucagon response in mice fed a normal chow diet and high-fat diet. CONCLUSIONS: These data indicate that ceramide serves as an intracellular messenger that augments hepatic glucose production by regulating CRTC2/CREB activity in the context of the hepatic glucagon response, suggesting that CRTC2 phosphorylation might be a potential node for pharmacological interventions to restrain the hyperglycemic response during fasting in diabetes.


Assuntos
Diabetes Mellitus Tipo 2 , Hiperglicemia , Humanos , Masculino , Camundongos , Animais , Glucagon , Diabetes Mellitus Tipo 2/metabolismo , Camundongos Endogâmicos C57BL , Fígado/metabolismo , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/genética , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/metabolismo , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/farmacologia , Glucose/metabolismo , Hiperglicemia/metabolismo , Ceramidas , Lipídeos/farmacologia
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