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1.
Public Health Nutr ; 27(1): e123, 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38639113

RESUMO

OBJECTIVE: Most evidence supporting screening for undernutrition is for children aged 6-59 months. However, the highest risk of mortality and highest incidence of wasting occurs in the first 6 months of life. We evaluated relationships between neonatal anthropometric indicators, including birth weight, weight-for-age Z-score (WAZ), weight-for-length Z-score (WLZ), length-for-age Z-score (LAZ) and mid-upper arm circumference (MUAC) and mortality and growth at 6 months of age among infants in Burkina Faso. DESIGN: Data arose from a randomised controlled trial evaluating neonatal azithromycin administration for the prevention of child mortality. We evaluated relationships between baseline anthropometric measures and mortality, wasting (WLZ < -2), stunting (LAZ < -2) and underweight (WAZ < -2) at 6 months of age were estimated using logistic regression models adjusted for the child's age and sex. SETTING: Five regions of Burkina Faso. PARTICIPANTS: Infants aged 8-27 d followed until 6 months of age. RESULTS: Of 21 832 infants enrolled in the trial, 7·9 % were low birth weight (<2500 g), 13·3 % were wasted, 7·7 % were stunted and 7·4 % were underweight at enrolment. All anthropometric deficits were associated with mortality by 6 months of age, with WAZ the strongest predictor (WAZ < -2 to ≥ -3 at enrolment v. WAZ ≥ -2: adjusted OR, 3·91, 95 % CI, 2·21, 6·56). Low WAZ was also associated with wasting, stunting, and underweight at 6 months. CONCLUSIONS: Interventions for identifying infants at highest risk of mortality and growth failure should consider WAZ as part of their screening protocol.


Assuntos
Antropometria , Peso ao Nascer , Transtornos do Crescimento , Mortalidade Infantil , Magreza , Humanos , Burkina Faso/epidemiologia , Lactente , Masculino , Feminino , Recém-Nascido , Transtornos do Crescimento/epidemiologia , Transtornos do Crescimento/mortalidade , Magreza/epidemiologia , Magreza/mortalidade , Estatura , Recém-Nascido de Baixo Peso , Azitromicina/administração & dosagem , Azitromicina/uso terapêutico , Desenvolvimento Infantil , Síndrome de Emaciação/epidemiologia , Síndrome de Emaciação/mortalidade , Peso Corporal , Modelos Logísticos
2.
Nutrients ; 12(12)2020 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-33266008

RESUMO

Despite some progress in the reduction of the prevalence of child wasting in Ethiopia, the pace of progress has been slow. Despite millions of dollars being spent on the treatment of wasting every year, the increased frequency and magnitude of environmental and anthropogenic shocks has halted progress. This study aimed to present the trends of child wasting in Ethiopia and estimate the economic losses related to the slow progress towards meeting the sustainable development goal (SDG) targets. Weather shocks and civil unrest between 2015 and 2018 have halted progress. We used a "consequence model" to apply the coefficient risk-deficit on economic losses established in the global scientific literature to the Ethiopian health, demographic, and economic data to estimate economic losses related to child wasting. The impact of wasting on the national economy of Ethiopia is estimated to be 157.8-230.2 million United States dollars (USD), annually. The greatest contributor to the economic burden (43.5-63.5% of the burden depending on the discount rate) is the cost of supplies and human resources to treat wasting. To reach the 2030 SDGs, Ethiopia should increase its annual average reduction rate (AARR) in the numbers of child (<59 months) wasting from 0.1% to 5.4%. This will avert the wasting in 7.9 million cases and prevent additional economic costs of up to 803.7 million USD over the next decade. Increasing the reach of therapeutic interventions, but also identifying and implementing wasting prevention interventions, will be critical if the SDG targets are to be met and the opportunity of the children to thrive is not to be wasted.


Assuntos
Transtornos Cognitivos/epidemiologia , Desnutrição/mortalidade , Estado Nutricional , Desenvolvimento Sustentável , Síndrome de Emaciação/mortalidade , Pré-Escolar , Estudos Transversais , Etiópia/epidemiologia , Feminino , Humanos , Lactente , Masculino , Prevalência , Fatores Socioeconômicos
4.
Br J Hosp Med (Lond) ; 81(4): 1-9, 2020 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-32339009

RESUMO

Muscle wasting in critically ill patients is the most common complication associated with critical care. It has significant effects on physical and psychological health, mortality and quality of life. It is most severe in the first few days of illness and in the most critically unwell patients, with muscle loss estimated to occur at 2-3% per day. This muscle loss is likely a result of a reduction in protein synthesis relative to muscle breakdown, resulting in altered protein homeostasis. The associated weakness is associated with in an increase in both short- and long-term mortality and morbidity, with these detrimental effects demonstrated up to 5 years post discharge. This article highlights the significant impact that muscle wasting has on critically ill patients' outcomes, how this can be reduced, and how this might change in the future.


Assuntos
Estado Terminal/epidemiologia , Síndrome de Emaciação/epidemiologia , Síndrome de Emaciação/fisiopatologia , Proteínas Alimentares/administração & dosagem , Ingestão de Energia/fisiologia , Exercício Físico , Humanos , Proteínas Musculares/metabolismo , Qualidade de Vida , Fatores de Risco , Índice de Gravidade de Doença , Síndrome de Emaciação/mortalidade , Síndrome de Emaciação/prevenção & controle
5.
World J Gastroenterol ; 25(31): 4383-4404, 2019 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-31496619

RESUMO

Systemic inflammation is a marker of poor prognosis preoperatively present in around 20%-40% of colorectal cancer patients. The hallmarks of systemic inflammation include an increased production of proinflammatory cytokines and acute phase proteins that enter the circulation. While the low-level systemic inflammation is often clinically silent, its consequences are many and may ultimately lead to chronic cancer-associated wasting, cachexia. In this review, we discuss the pathogenesis of cancer-related systemic inflammation, explore the role of systemic inflammation in promoting cancer growth, escaping antitumor defense, and shifting metabolic pathways, and how these changes are related to less favorable outcome.


Assuntos
Caquexia/imunologia , Neoplasias Colorretais/mortalidade , Inflamação/imunologia , Síndrome de Emaciação/imunologia , Biomarcadores/sangue , Biomarcadores/metabolismo , Proteína C-Reativa/análise , Proteína C-Reativa/imunologia , Proteína C-Reativa/metabolismo , Caquexia/metabolismo , Caquexia/mortalidade , Neoplasias Colorretais/complicações , Neoplasias Colorretais/imunologia , Citocinas/sangue , Citocinas/imunologia , Citocinas/metabolismo , Humanos , Inflamação/sangue , Inflamação/metabolismo , Mediadores da Inflamação/sangue , Mediadores da Inflamação/imunologia , Mediadores da Inflamação/metabolismo , Redes e Vias Metabólicas/imunologia , Prognóstico , Evasão Tumoral , Síndrome de Emaciação/metabolismo , Síndrome de Emaciação/mortalidade
6.
ESC Heart Fail ; 6(5): 983-991, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31429530

RESUMO

AIMS: Cardiac cachexia is a wasting syndrome characterized by chronic inflammation and high mortality. Fibroblast growth factor 21 (FGF-21) and monocyte chemoattractant protein 1 (MCP-1) are associated with cardiovascular disease and systemic inflammation. We investigated FGF-21 and MCP-1 in relations to cardiac function, inflammation, and wasting in patients with heart failure with reduced ejection fraction (HFrEF) and cardiac cachexia. METHODS AND RESULTS: Plasma FGF-21 and MCP-1 were measured in a cross-sectional study among the three study groups: 19 patients with HFrEF with cardiac cachexia, 19 patients with HFrEF without cachexia, and 19 patients with ischaemic heart disease and preserved ejection fraction. Patients with HFrEF and cardiac cachexia displayed higher FGF-21 levels median (inter quantile range) 381 (232-577) pg/mL than patients with HFrEF without cachexia 224 (179-309) pg/mL and ischaemic heart disease patients 221 (156-308) pg/mL (P = 0.0496). No difference in MCP-1 levels were found among the groups (P = 0.345). In a multivariable regression analysis, FGF-21 (logarithm 2) was independently associated with interleukin 6 (logarithm 2) (P = 0.015) and lower muscle mass (P = 0.043), while no relation with N-terminal pro-hormone brain natriuretic peptide was observed. CONCLUSIONS: Fibroblast growth factor 21 (FGF-21) levels were elevated in patients with HFrEF and cardiac cachexia, which could be mediated by increased inflammation and muscle wasting rather than impaired cardiac function.


Assuntos
Biomarcadores/sangue , Quimiocina CCL2/metabolismo , Fatores de Crescimento de Fibroblastos/sangue , Inflamação/metabolismo , Síndrome de Emaciação/metabolismo , Idoso , Idoso de 80 Anos ou mais , Caquexia/complicações , Doenças Cardiovasculares/metabolismo , Doenças Cardiovasculares/patologia , Estudos de Casos e Controles , Doença Crônica , Estudos Transversais , Dinamarca/epidemiologia , Feminino , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/fisiopatologia , Humanos , Interleucina-6/sangue , Masculino , Atrofia Muscular/metabolismo , Atrofia Muscular/patologia , Isquemia Miocárdica/sangue , Isquemia Miocárdica/fisiopatologia , Peptídeo Natriurético Encefálico/sangue , Volume Sistólico/fisiologia , Síndrome de Emaciação/mortalidade , Síndrome de Emaciação/patologia
7.
Br J Nutr ; 121(11): 1271-1278, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31084673

RESUMO

Malnutrition is highly prevalent in dialysis patients and associated with poor outcomes. In 2008, protein-energy wasting (PEW) was coined by the International Society of Renal Nutrition and Metabolism (ISRNM), as a single pathological condition in which undernourishment and hypercatabolism converge. In 2014, a new simplified score was described using serum creatinine adjusted for body surface area (sCr/BSA) to replace a reduction of muscle mass over time in the muscle wasting category. We have now compared PEW-ISRNM 2008 and PEW-score 2014 to evaluate the prevalence of PEW and the risk of death in 109 haemodialysis patients. This was a retrospective analysis of cross sectional data with a median prospective follow-up of 20 months. The prevalence of PEW was 41 % for PEW-ISRNM 2008 and 63 % for PEW-score 2014 (P <0·002). Using PEW-score 2014: twenty-nine patients (27 %) had severe malnutrition (PEW-score 2014 0-1) and forty (37 %) with moderate malnutrition (score 2). Additionally, thirty-three (30 %) patients had mild wasting and only seven patients (6 %) presented a normal nutritional status. sCr/BSA correlated with lean total mass (R 0·46. P<0·001). A diagnosis of PEW according to PEW-score 2014, but not according to PEW-ISRNM 2008, was significantly associated with short-term mortality (P=0·0349) in univariate but not in multivariate analysis (P=0·069). In conclusion, the new PEW-score 2014 incorporating sCr/BSA identifies a higher number of dialysis PEW patients than PEW-ISRNM 2008. Whereas PEW-score-2014 provides timelier and therefore more clinically relevant information, its association with early mortality needs to be confirmed in larger studies.


Assuntos
Avaliação Nutricional , Desnutrição Proteico-Calórica/classificação , Desnutrição Proteico-Calórica/mortalidade , Diálise Renal/efeitos adversos , Índice de Gravidade de Doença , Idoso , Composição Corporal , Creatinina/sangue , Estudos Transversais , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/fisiopatologia , Estado Nutricional , Prevalência , Estudos Prospectivos , Desnutrição Proteico-Calórica/etiologia , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Síndrome de Emaciação/classificação , Síndrome de Emaciação/etiologia , Síndrome de Emaciação/mortalidade
8.
PLoS One ; 14(2): e0211988, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30759133

RESUMO

Protein-energy wasting, which involves loss of fat and muscle mass, is prevalent and is associated with mortality in hemodialysis (HD) patients. We investigated the associations of fat tissue and muscle mass indices with all-cause mortality in HD patients. The study included 162 patients undergoing HD. The fat tissue index (FTI) and skeletal muscle mass index (SMI), which represent respective tissue masses normalized to height squared, were measured by bioimpedance analysis after dialysis. Patients were divided into the following four groups according to the medians of FTI and SMI values: group 1 (G1), lower FTI and lower SMI; G2, higher FTI and lower SMI; G3, lower FTI and higher SMI; and G4, higher FTI and higher SMI. The associations of the FTI, SMI, and body mass index (BMI) with all-cause mortality were evaluated. During a median follow-up of 2.5 years, 29 patients died. The 5-year survival rates were 48.6%, 76.1%, 95.7%, and 87.4% in the G1, G2, G3, and G4 groups, respectively (P = 0.0002). The adjusted hazard ratio values were 0.34 (95% confidence interval [CI] 0.10-0.95, P = 0.040) for G2 vs. G1, 0.13 (95%CI 0.01-0.69, P = 0.013) for G3 vs. G1, and 0.25 (95%CI 0.07-0.72, P = 0.0092) for G4 vs. G1, respectively. With regard to model discrimination, on adding both FTI and SMI to a model with established risk factors, the C-index increased significantly when compared with the value for a model with BMI (0.763 vs. 0.740, P = 0.016). Higher FTI and/or higher SMI values were independently associated with reduced risks of all-cause mortality in HD patients. Moreover, the combination of the FTI and SMI may more accurately predict all-cause mortality when compared with BMI. Therefore, these body composition indicators should be evaluated simultaneously in this population.


Assuntos
Tecido Adiposo/metabolismo , Composição Corporal/fisiologia , Músculo Esquelético/metabolismo , Diálise Renal , Insuficiência Renal Crônica/mortalidade , Insuficiência Renal Crônica/terapia , Síndrome de Emaciação/mortalidade , Adiposidade/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Causas de Morte , Impedância Elétrica , Feminino , Seguimentos , Indicadores Básicos de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Mortalidade , Diálise Renal/mortalidade , Diálise Renal/estatística & dados numéricos , Fatores de Risco , Síndrome de Emaciação/terapia
9.
Sci Adv ; 5(1): eaau7042, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30729157

RESUMO

Multihost infectious disease outbreaks have endangered wildlife, causing extinction of frogs and endemic birds, and widespread declines of bats, corals, and abalone. Since 2013, a sea star wasting disease has affected >20 sea star species from Mexico to Alaska. The common, predatory sunflower star (Pycnopodia helianthoides), shown to be highly susceptible to sea star wasting disease, has been extirpated across most of its range. Diver surveys conducted in shallow nearshore waters (n = 10,956; 2006-2017) from California to Alaska and deep offshore (55 to 1280 m) trawl surveys from California to Washington (n = 8968; 2004-2016) reveal 80 to 100% declines across a ~3000-km range. Furthermore, timing of peak declines in nearshore waters coincided with anomalously warm sea surface temperatures. The rapid, widespread decline of this pivotal subtidal predator threatens its persistence and may have large ecosystem-level consequences.


Assuntos
Epidemias , Temperatura Alta/efeitos adversos , Raios Infravermelhos/efeitos adversos , Estrelas-do-Mar , Síndrome de Emaciação/epidemiologia , Síndrome de Emaciação/etiologia , Animais , Ecossistema , Pesqueiros , Oceanos e Mares/epidemiologia , Oceano Pacífico/epidemiologia , Comportamento Predatório , Síndrome de Emaciação/mortalidade
10.
Public Health Nutr ; 22(5): 862-871, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30501655

RESUMO

OBJECTIVE: To investigate whether children with concurrent wasting and stunting require therapeutic feeding and to better understand whether multiple diagnostic criteria are needed to identify children with a high risk of death and in need of treatment. DESIGN: Community-based cohort study, following 5751 children through time. Each child was visited up to four times at 6-month intervals. Anthropometric measurements were taken at each visit. Survival was monitored using a demographic surveillance system operating in the study villages. SETTING: Niakhar, a rural area of the Fatick region of central Senegal.ParticipantsChildren aged 6-59 months living in thirty villages in the study area. RESULTS: Weight-for-age Z-score (WAZ) and mid-upper arm circumference (MUAC) were independently associated with near-term mortality. The lowest WAZ threshold that, in combination with MUAC, detected all deaths associated with severe wasting or concurrent wasting and stunting was WAZ <-2·8. Performance for detecting deaths was best when only WAZ and MUAC were used. Additional criteria did not improve performance. Risk ratios for near-term death in children identified using WAZ and MUAC suggest that children identified by WAZ <-2·8 but with MUAC≥115 mm may require lower-intensity treatment than children identified using MUAC <115 mm. CONCLUSIONS: A combination of MUAC and WAZ detected all near-term deaths associated with severe anthropometric deficits including concurrent wasting and stunting. Therapeutic feeding programmes may achieve higher impact if WAZ and MUAC admission criteria are used.


Assuntos
Transtornos da Nutrição Infantil/diagnóstico , Transtornos do Crescimento/mortalidade , Desnutrição/diagnóstico , Programas de Rastreamento/métodos , População Rural , Síndrome de Emaciação/mortalidade , Antropometria , Braço , Estatura , Peso Corporal , Transtornos da Nutrição Infantil/complicações , Transtornos da Nutrição Infantil/mortalidade , Pré-Escolar , Estudos de Coortes , Feminino , Transtornos do Crescimento/complicações , Humanos , Lactente , Masculino , Desnutrição/complicações , Desnutrição/mortalidade , Medição de Risco , Fatores de Risco , Senegal , Síndrome de Emaciação/complicações
11.
Nutrients ; 9(4)2017 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-28420212

RESUMO

Protein-energy wasting (PEW) is associated with mortality in patients with end-stage renal disease (ESRD) on maintenance hemodialysis. The correct diagnosis of PEW is extremely important in order to predict clinical outcomes. However, it is unclear which parameters should be used to diagnose PEW. Therefore, this retrospective observational study investigated the relationship between mortality and nutritional parameters in ESRD patients on maintenance hemodialysis. A total of 144 patients were enrolled. Nutritional parameters, including body mass index, serum albumin, dietary intake, normalized protein catabolic rate (nPCR), and malnutrition inflammation score (MIS), were measured at baseline. Fifty-three patients died during the study. Survivors had significantly higher nPCR (1.10 ± 0.24 g/kg/day vs. 1.01 ± 0.21 g/kg/day; p = 0.048), energy intake (26.7 ± 5.8 kcal/kg vs. 24.3 ± 4.2 kcal/kg; p = 0.009) and protein intake (0.91 ± 0.21 g/kg vs. 0.82 ± 0.24 g/kg; p = 0.020), and lower MIS (5.2 ± 2.3 vs. 6.1 ± 2.1, p = 0.039). In multivariable analysis, energy intake <25 kcal/kg (HR 1.860, 95% CI 1.018-3.399; p = 0.044) and MIS > 5 (HR 2.146, 95% CI 1.173-3.928; p = 0.013) were independent variables associated with all-cause mortality. These results suggest that higher MIS and lower energy intake are harmful to ESRD patients on maintenance hemodialysis. Optimal energy intake could reduce mortality in these patients.


Assuntos
Proteínas Alimentares , Ingestão de Energia , Inflamação/mortalidade , Falência Renal Crônica/mortalidade , Estado Nutricional , Desnutrição Proteico-Calórica/mortalidade , Diálise Renal/efeitos adversos , Adulto , Idoso , Índice de Massa Corporal , Causas de Morte , Proteínas Alimentares/administração & dosagem , Proteínas Alimentares/metabolismo , Feminino , Humanos , Inflamação/etiologia , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Avaliação Nutricional , Desnutrição Proteico-Calórica/etiologia , Estudos Retrospectivos , Fatores de Risco , Albumina Sérica , Síndrome de Emaciação/etiologia , Síndrome de Emaciação/mortalidade
12.
Nutrients ; 9(3)2017 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-28287482

RESUMO

Weight-for-height Z-score (WHZ) and mid-upper arm circumference (MUAC) are two independent anthropometric indicators for diagnosing and admitting children with severe acute malnutrition (SAM) for treatment. While severely wasted children are at high risk of mortality, MUAC and WHZ do not always identify the same population of children as having SAM. Understanding how this discrepancy relates to age and sex may provide valuable information for care programmes for children with SAM. Age and sex distribution for differences between children identified as SAM by MUAC and WHZ were examined and the degree of agreement calculated. Children (n = 4297) aged 6-59 months with validated anthropometric measures were recruited from a population-based survey conducted in rural southern Ethiopia. MUAC < 115 mm and WHZ < -3 were used to define severe wasting as per the World Health Organization (WHO) classification. The kappa coefficient (κ) was calculated. There was fair agreement between the MUAC and WHZ definitions of severe wasting in boys (κ = 0.37) and children younger than 24 months (κ = 0.32) but poor agreement in girls (κ = 0.15) and children aged 24 months and above (κ = 0.13). More research is needed on response to treatment and prediction of mortality using different anthropometric measurements in relation to ages and sex of children.


Assuntos
Avaliação Nutricional , Saúde da População Rural , Desnutrição Aguda Grave/diagnóstico , Síndrome de Emaciação/diagnóstico , Braço , Tamanho Corporal/etnologia , Pré-Escolar , Países em Desenvolvimento , Etiópia/epidemiologia , Características da Família/etnologia , Feminino , Humanos , Lactente , Masculino , Inquéritos Nutricionais , Prevalência , Prognóstico , Risco , Saúde da População Rural/etnologia , Desnutrição Aguda Grave/epidemiologia , Desnutrição Aguda Grave/etnologia , Desnutrição Aguda Grave/mortalidade , Fatores Sexuais , Fatores Socioeconômicos , Razão Cintura-Estatura , Síndrome de Emaciação/epidemiologia , Síndrome de Emaciação/etnologia , Síndrome de Emaciação/mortalidade , Organização Mundial da Saúde
13.
Am J Clin Nutr ; 103(3): 801-7, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26843152

RESUMO

BACKGROUND: Growth assessment based on the WHO child growth velocity standards can potentially be used to predict adverse health outcomes. Nevertheless, there are very few studies on growth velocity to predict mortality. OBJECTIVES: We aimed to determine the ability of various growth velocity measures to predict child death within 3 mo and to compare it with those of attained growth measures. DESIGN: Data from 5657 children <5 y old who were enrolled in a cohort study in the Democratic Republic of Congo were used. Children were measured up to 6 times in 3-mo intervals, and 246 (4.3%) children died during the study period. Generalized estimating equation (GEE) models informed the mortality risk within 3 mo for weight and length velocity z scores and 3-mo changes in midupper arm circumference (MUAC). We used receiver operating characteristic (ROC) curves to present balance in sensitivity and specificity to predict child death. RESULTS: GEE models showed that children had an exponential increase in the risk of dying with decreasing growth velocity in all 4 indexes (1.2- to 2.4-fold for every unit decrease). A length and weight velocity z score of <-3 was associated with an 11.8- and a 7.9-fold increase, respectively, in the RR of death in the subsequent 3-mo period (95% CIs: 3.9, 35.5, and 3.9, 16.2, respectively). Weight and length velocity z scores had better predictive abilities [area under the ROC curves (AUCs) of 0.67 and 0.69] than did weight-for-age (AUC: 0.57) and length-for-age (AUC: 0.52) z scores. Among wasted children (weight-for-height z score <-2), the AUC of weight velocity z scores was 0.87. Absolute MUAC performed best among the attained indexes (AUC: 0.63), but longitudinal assessment of MUAC-based indexes did not increase the predictive value. CONCLUSION: Although repeated growth measures are slightly more complex to implement, their superiority in mortality-predictive abilities suggests that these could be used more for identifying children at increased risk of death.


Assuntos
Mortalidade da Criança , Crescimento , Mortalidade Infantil , Modelos Biológicos , Antropometria , Área Sob a Curva , Pesos e Medidas Corporais , Pré-Escolar , Estudos de Coortes , República Democrática do Congo , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Curva ROC , Síndrome de Emaciação/mortalidade
14.
Nephrol Dial Transplant ; 31(7): 1070-7, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-25910496

RESUMO

Muscle wasting (or sarcopenia) is a common feature of the uremic phenotype and predisposes this vulnerable patient population to increased risk of comorbid complications, poor quality of life, frailty and premature death. The old age of dialysis patients is in addition a likely contributor to loss of muscle mass. As recent evidence suggests that assessment of muscle strength (i.e. function) is a better predictor of outcome and comorbidities than muscle mass, this opens new screening, assessment and therapeutic opportunities. Among established treatment strategies, the benefit of resistance exercise and endurance training are increasingly recognized among nephrologists as being effective and should be promoted in sedentary chronic kidney disease patients. Testosterone and growth hormone replacement appear as the most promising among emerging treatments strategies for muscle wasting. As treatment of muscle wasting is difficult and seldom successful in this often old, frail, sedentary and exercise-hesitant patient group, novel treatment strategies are urgently needed. In this review, we summarize recent studies on stimulation of mitochondrial biogenesis, myogenic stem (satellite) cells and manipulation of transforming growth factor family members, all of which hold promise for more effective therapies to target muscle mass loss and function in the future.


Assuntos
Falência Renal Crônica/complicações , Mortalidade Prematura , Síndrome de Emaciação/terapia , Humanos , Síndrome de Emaciação/mortalidade
15.
Blood Purif ; 39(1-3): 84-92, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25662331

RESUMO

BACKGROUND: Despite recent advances in chronic kidney disease (CKD) and end-stage renal disease (ESRD) management, morbidity and mortality in this population remain exceptionally high. Persistent, low-grade inflammation has been recognized as an important component of CKD, playing a unique role in its pathophysiology and being accountable in part for cardiovascular and all-cause mortality, as well as contributing to the development of protein-energy wasting. SUMMARY: The variety of factors contribute to chronic inflammatory status in CKD, including increased production and decreased clearance of pro-inflammatory cytokines, oxidative stress and acidosis, chronic and recurrent infections, including those related to dialysis access, altered metabolism of adipose tissue, and intestinal dysbiosis. Inflammation directly correlates with the glomerular filtration rate (GFR) in CKD and culminates in dialysis patients, where extracorporeal factors, such as impurities in dialysis water, microbiological quality of the dialysate, and bioincompatible factors in the dialysis circuit play an additional role. Genetic and epigenetic influences contributing to inflammatory activation in CKD are currently being intensively investigated. A number of interventions have been proposed to target inflammation in CKD, including lifestyle modifications, pharmacological agents, and optimization of dialysis. Importantly, some of these therapies have been recently tested in randomized controlled trials. KEY MESSAGES: Chronic inflammation should be regarded as a common comorbid condition in CKD and especially in dialysis patients. A number of interventions have been proven to be safe and effective in well-designed clinical studies. This includes such inexpensive approaches as modification of physical activity and dietary supplementation. Further investigations are needed to evaluate the effects of these interventions on hard outcomes, as well as to better understand the role of inflammation in selected CKD populations (e.g., in children).


Assuntos
Acidose/terapia , Doenças Cardiovasculares/terapia , Falência Renal Crônica/terapia , Diálise Renal , Síndrome de Emaciação/terapia , Acidose/complicações , Acidose/mortalidade , Acidose/patologia , Anti-Inflamatórios/uso terapêutico , Doenças Cardiovasculares/complicações , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/patologia , Citocinas/biossíntese , Suplementos Nutricionais , Exercício Físico , Taxa de Filtração Glomerular , Humanos , Inflamação/complicações , Inflamação/mortalidade , Inflamação/patologia , Inflamação/terapia , Falência Renal Crônica/complicações , Falência Renal Crônica/mortalidade , Falência Renal Crônica/patologia , Estresse Oxidativo , Ensaios Clínicos Controlados Aleatórios como Assunto , Análise de Sobrevida , Síndrome de Emaciação/complicações , Síndrome de Emaciação/mortalidade , Síndrome de Emaciação/patologia
16.
Perit Dial Int ; 35(4): 471-80, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-24584612

RESUMO

UNLABELLED: ♦ INTRODUCTION: Encapsulating peritoneal sclerosis (EPS) is a serious complication of peritoneal dialysis in which gastrointestinal (GI) symptoms reduce appetite and dietary intake. Adequate nutrition is important, especially if surgery is required. Although the incidence of EPS is low, the present report is able to detail preoperative nutrition status and treatment in a large cohort of patients from a national EPS referral center. ♦ METHODS: Of 51 patients admitted to this EPS specialist center hospital for their first peritonectomy in the study period, 50 had a preoperative dietetic assessment, and 49 underwent upper-arm anthropometry. ♦ RESULTS: Mean body mass index (BMI) was 20.6 kg/m(2). Mean weight loss was 14% of body weight in the preceding 6 months, with 35 of 50 patients losing more than 10%. On anthropometry, 25 of 49 patients were below the 5th percentile for mid-arm circumference (MAC), 17 of 49 were below for triceps skinfold thickness (TSF), and 21 of 49 were below for mid-arm muscle circumference (MAMC). Mean handgrip strength (HGS) was 60% of normal, with 43 of 49 patients being below 85% of normal. Appetite was poor in 21 of 50 patients, and 37 of 50 had upper and 40 of 50 had lower GI symptoms. By subjective global assessment, 27 of 51 patients were graded as severely malnourished, and 5 of 51, as well-nourished. Mean serum albumin was 28 g/L and did not correlate with BMI, MAC, TSF, MAMC, or HGS. In most patients, C-reactive protein was elevated (mean: 111 mg/L). Preoperative parenteral nutrition was given to 46 of 51 patients for a mean of 21 days. ♦ DISCUSSION: Our findings demonstrate the poor nutrition status of patients admitted for EPS surgical intervention. Anthropometrics reveal depleted fat and lean body mass in EPS patients, which might be a result of anorexia and inflammation, and the reason that albumin was not an accurate marker of nutrition. Poor nutrition status is likely to negatively affect outcome in this patient group. ♦ CONCLUSIONS: Early recognition of GI symptoms may herald a diagnosis of EPS. Optimization of preoperative nutrition status with intensive nutrition support is needed.


Assuntos
Antropometria , Diálise Peritoneal/efeitos adversos , Fibrose Peritoneal/etiologia , Fibrose Peritoneal/cirurgia , Síndrome de Emaciação/etiologia , Síndrome de Emaciação/mortalidade , Adulto , Idoso , Índice de Massa Corporal , Peso Corporal , Estudos de Coortes , Nutrição Enteral/métodos , Feminino , Seguimentos , Humanos , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Avaliação Nutricional , Estado Nutricional , Diálise Peritoneal/métodos , Fibrose Peritoneal/fisiopatologia , Peritônio/cirurgia , Cuidados Pós-Operatórios/métodos , Cuidados Pré-Operatórios , Medição de Risco , Taxa de Sobrevida , Resultado do Tratamento , Síndrome de Emaciação/terapia , Adulto Jovem
17.
Am J Clin Nutr ; 97(4): 896-901, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23426036

RESUMO

BACKGROUND: Child stunting, wasting, and underweight have been individually associated with increased mortality. However, there has not been an analysis of the mortality risk associated with multiple anthropometric deficits. OBJECTIVE: The objective was to quantify the association between combinations of stunting, wasting, and underweight and mortality among children <5 y of age. DESIGN: We analyzed data from 10 cohort studies or randomized trials in low- and middle-income countries in Africa, Asia, and Latin America with 53,767 participants and 1306 deaths. Height-for-age, weight-for-height, and weight-for-age were calculated by using the 2006 WHO growth standards, and children were classified into 7 mutually exclusive combinations: no deficits; stunted only; wasted only; underweight only; stunted and underweight but not wasted; wasted and underweight but not stunted; and stunted, wasted, and underweight (deficit defined as < -2 z scores). We calculated study-specific mortality HRs using Cox proportional hazards models and used a random-effects model to pool HRs across studies. RESULTS: The risk of all-cause mortality was elevated among children with 1, 2, and 3 anthropometric deficits. In comparison with children with no deficits, the mortality HRs were 3.4 (95% CI: 2.6, 4.3) among children who were stunted and underweight but not wasted; 4.7 (95% CI: 3.1, 7.1) in those who were wasted and underweight but not stunted; and 12.3 (95% CI: 7.7, 19.6) in those who were stunted, wasted, and underweight. CONCLUSION: Children with multiple deficits are at a heightened risk of mortality and may benefit most from nutrition and other child survival interventions.


Assuntos
Tamanho Corporal , Causas de Morte , Mortalidade da Criança , Transtornos do Crescimento/mortalidade , Desnutrição/mortalidade , Magreza/mortalidade , Síndrome de Emaciação/mortalidade , África , Antropometria , Ásia , Índice de Massa Corporal , Criança , Países em Desenvolvimento , Transtornos do Crescimento/complicações , Humanos , América Latina , Desnutrição/complicações , Modelos de Riscos Proporcionais , Fatores de Risco , Magreza/complicações , Síndrome de Emaciação/complicações
18.
Ann Epidemiol ; 22(7): 466-73, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22575813

RESUMO

OBJECTIVES: We assessed the impact of wasting on survival in patients with tuberculosis by using a precise height-normalized lean tissue mass index (LMI) estimated by bioelectrical impedance analysis and body mass index (BMI). METHODS: In a retrospective cohort study, 747 adult pulmonary patients with tuberculosis who were screened for HIV and nutritional status were followed for survival. RESULTS: Of 747 patients, 310 had baseline wasting by BMI (kg/m(2)) and 103 by LMI (kg/m(2)). Total deaths were 105. Among men with reduced BMI, risk of death was 70% greater (hazard ratio [HR] 1.7, 95% confidence interval [95% CI] 1.03-2.81) than in men with normal BMI. Survival did not differ by LMI among men (HR 1.1; 95% CI 0.5-2.9). In women, both the BMI and LMI were associated with survival. Among women with reduced BMI, risk of death was 80% greater (HR 1.8; 95% CI 0.9-3.5) than in women with normal BMI; risk of death was 5-fold greater (HR 5.0; 95% CI 1.6-15.9) for women with low LMI compared with women with normal LMI. CONCLUSIONS: Wasting assessed by reduced BMI is associated with an increased risk for death among both men and women whereas reduced LMI is among women with tuberculosis.


Assuntos
Composição Corporal , Índice de Massa Corporal , Caquexia/mortalidade , Tuberculose Pulmonar/mortalidade , Síndrome de Emaciação/mortalidade , Adulto , Estudos de Coortes , Impedância Elétrica , Feminino , Infecções por HIV/complicações , HIV-1 , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Tuberculose Pulmonar/complicações , Uganda/epidemiologia , População Urbana , Síndrome de Emaciação/etiologia
19.
Curr Opin Clin Nutr Metab Care ; 14(3): 250-4, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21415735

RESUMO

PURPOSE OF REVIEW: A common feature of cancer patients is loss of lean tissue, specifically skeletal muscle, which may be the result of the tumor or a side-effect of chemotherapy or other drugs. Lean tissue loss in turn has important adverse implications for toxicity of antineoplastic therapy and, hence, cancer prognosis. RECENT FINDINGS: Contemporary cancer populations have heterogeneous proportions of lean tissue, regardless of body weight. Wasting of lean tissue during the cancer trajectory has been associated with tumor progression. Lean tissue depletion is an independent predictor of severe toxicity in patients treated with chemotherapeutic agents of diverse classes. Patients with lean tissue depletion behave as if overdosed and have toxicity of sufficient magnitude to require dose reductions, treatment delays or definitive termination of treatment. Muscle loss may occur due to a specific effect of a chemotherapy agent (i.e. sorafenib), androgen suppression therapy or other drugs (i.e. statins such as atorvastatin). SUMMARY: Lean tissue wasting occurs due to cancer progression and may be exacerbated by several drug classes. This loss of lean tissue is not proportional to changes in body weight and is prognostic of enhanced treatment toxicity and reduced survival.


Assuntos
Antineoplásicos/efeitos adversos , Composição Corporal , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/etiologia , Músculo Esquelético/patologia , Neoplasias/complicações , Síndrome de Emaciação/etiologia , Antineoplásicos/uso terapêutico , Compartimentos de Líquidos Corporais , Progressão da Doença , Humanos , Neoplasias/tratamento farmacológico , Neoplasias/mortalidade , Prognóstico , Síndrome de Emaciação/mortalidade
20.
Food Nutr Bull ; 31(3 Suppl): S234-47, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21049844

RESUMO

BACKGROUND: The relation between anthropometric measures and mortality risk in different populations can provide a basis for deciding how malnutrition prevalences should be interpreted. OBJECTIVE: To assess criteria for deciding on needs for emergency interventions in the Horn of Africa based on associations between child wasting and mortality from 2000 to 2005. METHODS: Data were analyzed on child global acute malnutrition (GAM) prevalences and mortality estimates from about 900 area-level nutrition surveys from Ethiopia, Kenya, Somalia, Sudan, and Uganda; data on drought, floods, and food insecurity were added for Kenya (Rift Valley) and Ethiopia, from Food and Agriculture Organization (FAO) reports at the time. RESULTS: Higher rates of GAM were associated with increased mortality of children under 5 years of age (U5MR), more strongly among populations with pastoral livelihoods than with agricultural livelihoods. In all groups spikes of GAM and U5MR corresponded with drought (and floods). Different GAM cutoff points are needed for different populations. For example, to identify 75% of U5MRs above 2/10,000/day, the GAM cutoff point ranged from 20% GAM in the Rift Valley (Kenya) to 8% in Oromia or SNNPR (Ethiopia). CONCLUSIONS: Survey results should be displayed as time series within geographic areas. Variable GAM cutoff points should be used, depending on livelihood or location. For example, a GAM cutoff point of 15% may be appropriate for pastoral groups and 10% for agricultural livelihood groups. This gives a basis for reexamining the guidelines currently used for interpreting wasting (or GAM) prevalences in terms of implications for intervention.


Assuntos
Síndrome de Emaciação/mortalidade , Agricultura , Altruísmo , Transtornos da Nutrição Infantil/epidemiologia , Transtornos da Nutrição Infantil/mortalidade , Transtornos da Nutrição Infantil/terapia , Pré-Escolar , Secas , Emergências , Etiópia/epidemiologia , Inundações , Abastecimento de Alimentos/economia , Humanos , Lactente , Recém-Nascido , Quênia/epidemiologia , Inquéritos Nutricionais , Ocupações , Somália/epidemiologia , Sudão/epidemiologia , Uganda/epidemiologia , Síndrome de Emaciação/epidemiologia , Síndrome de Emaciação/terapia
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