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1.
Nutrients ; 12(8)2020 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-32796704

RESUMO

The purpose of the current study was to examine the cost of eggs in relation to nutrient delivery in children and adults. The present analysis used dietary intake data from the National Health and Nutrition Examination Survey 2013-2016 (egg consumers: 2-18 years-old, N = 956; 19+ years-old, N = 2424). Inflation adjusted food cost and the cost of nutrients were obtained from the Center for Nutrition Promotion and Policy food cost database. Cost and nutrient profiles for What We Eat in America food categories were compared to whole eggs. Of the 15 main food groups examined, whole eggs ranked third for lowest cost per 100 g (excluding beverages), such that eggs cost 0.35 USD per 100 g, with dairy and grains representing the first and second most cost-efficient foods, at 0.23 USD and 0.27 USD per 100 g, respectively. In children and adults, eggs represented a cost-efficient food for protein delivery, such that eggs provided nearly 2.7% and 3.7% of all protein in the diet, respectively, at a cost of about 0.03 USD per g of protein. Eggs contributed 3.8% and 6.0% of all vitamin A in the diet of children and adults, at a cost of approximately 0.002 USD and 0.003 USD per RAE mcg of vitamin A, respectively. In children 2-18 years-old, nearly 12% of all choline in the diet is delivered from eggs, at a cost of approximately 0.002 USD per mg of choline. Similarly, in adults 19-years-old+, eggs provide nearly 15% of all dietary choline in the diet, at a cost of approximately 0.002 USD per mg of choline. Eggs provide nearly 5% and 9.5% of all vitamin D in the diet of children and adults, at a cost of approximately 0.21 USD and 0.22 USD per mcg of vitamin D, respectively. Overall, eggs ranked as the most cost-efficient food for delivering protein, choline, and vitamin A, second for vitamin E, and third for vitamin D in children. In adults, eggs ranked as the most cost-efficient food for delivering protein and choline, second for vitamin A, and third for vitamin D and vitamin E. In summary, eggs represent an economical food choice for the delivery of protein and several shortfall nutrients (choline, vitamin A, and vitamin D) in the American diet.


Assuntos
Dieta Saudável/economia , Ovos/economia , Nutrientes/economia , Adolescente , Adulto , Criança , Pré-Escolar , Colina/economia , Custos e Análise de Custo , Proteínas Alimentares/economia , Ovos/análise , Feminino , Humanos , Masculino , Nutrientes/análise , Inquéritos Nutricionais , Estados Unidos , Vitamina A/economia , Vitamina D/economia , Vitamina E/economia , Adulto Jovem
2.
Pharmacoeconomics ; 37(2): 267-278, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30430467

RESUMO

INTRODUCTION: This study evaluated lifetime liver-related clinical outcomes, costs of treatment, and the cost-effectiveness of treatment options for non-alcoholic fatty liver disease (NAFLD) in Thailand. METHODS: A cost-utility analysis using a lifetime Markov model was conducted among Thai patients with NAFLD, from a societal perspective. Pioglitazone, vitamin E, a weight reduction program, and usual care were investigated, with the outcomes of interest being the number of cirrhosis and hepatocellular carcinoma (HCC) cases, life expectancy, quality-adjusted life-years (QALYs), lifetime costs, and the incremental cost-effectiveness ratios (ICERs). One-way and probabilistic sensitivity analyses were performed. RESULTS: When compared with usual care, a weight reduction program can prevent cirrhosis and HCC cases by 13.91% (95% credible interval [CrI] 0.97, 20.59) and 2.12% (95% CrI 0.43, 4.56), respectively; pioglitazone can prevent cirrhosis and HCC cases by 9.30% (95% CrI -2.52, 15.24) and 1.42% (95% CrI -0.18, 3.74), respectively; and vitamin E can prevent cirrhosis and HCC cases by 7.32% (95% CrI -4.64, 15.56) and 1.12% (95% CrI -0.81, 3.44), respectively. Estimated incremental life expectancy and incremental QALYs for all treatment options compared with usual care were approximately 0.06 years and 0.07 QALYs, respectively. The lifetime costs of both a weight reduction program and pioglitazone were less than usual care, while vitamin E was $3050 (95% CrI 2354, 3650). The weight reduction program dominated all other treatment options. The probability of being cost-effective in Thailand's willingness-to-pay threshold ($4546/QALY gained) was 76% for the weight reduction program, 22% for pioglitazone, 2% for usual care, and 0% for vitamin E. CONCLUSIONS: A weight reduction program can prevent cirrhosis and HCC occurrences, and dominates all other treatment options. Pioglitazone and vitamin E demonstrated a trend towards decreasing the number of cirrhosis and HCC cases.


Assuntos
Hipoglicemiantes/administração & dosagem , Hepatopatia Gordurosa não Alcoólica/terapia , Pioglitazona/administração & dosagem , Programas de Redução de Peso/métodos , Carcinoma Hepatocelular/etiologia , Carcinoma Hepatocelular/prevenção & controle , Análise Custo-Benefício , Humanos , Hipoglicemiantes/economia , Cirrose Hepática/etiologia , Cirrose Hepática/prevenção & controle , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/prevenção & controle , Cadeias de Markov , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/economia , Pioglitazona/economia , Anos de Vida Ajustados por Qualidade de Vida , Tailândia , Vitamina E/administração & dosagem , Vitamina E/economia , Redução de Peso , Programas de Redução de Peso/economia
3.
Cardiol Rev ; 25(6): 298-308, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28984669

RESUMO

Despite the knowledge that a well-balanced diet provides most of the nutritional requirements, the use of supplemental vitamins is widespread among adults in the United States. Evidence from large randomized controlled trials over the last 2 decades does not support vitamin supplementation for the reduction of cardiovascular risk factors or clinical outcomes. Many of the vitamins used in common practice likely are safe when consumed in small doses, but long-term consumption of megadoses is not only expensive but has the potential to cause adverse effects. Therefore, a need exists to revisit this issue, reminding the public and healthcare providers about the data supporting the use of vitamins for cardiovascular disease, and the potential for harm and the expense associated with their unnecessary use. In this review, we highlight the scientific evidence from randomized controlled studies regarding the efficacy and safety of vitamin supplementation for primary and secondary prevention of cardiovascular diseases and outcomes. We also draw attention to issues related to widespread and indiscriminate use of vitamin supplements and the need to educate the public to curtail unnecessary consumption and expense by limiting their use based on strong scientific evidence.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Vitaminas/uso terapêutico , Ácido Ascórbico/economia , Ácido Ascórbico/uso terapêutico , Doenças Cardiovasculares/tratamento farmacológico , Análise Custo-Benefício , Suplementos Nutricionais/economia , Medicina Baseada em Evidências , Humanos , Vitamina A/economia , Vitamina A/uso terapêutico , Complexo Vitamínico B/economia , Complexo Vitamínico B/uso terapêutico , Vitamina D/economia , Vitamina D/uso terapêutico , Vitamina E/economia , Vitamina E/uso terapêutico , Vitamina K/economia , Vitamina K/uso terapêutico , Vitaminas/economia
4.
J Food Sci ; 77(6): C653-7, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22671521

RESUMO

UNLABELLED: Seeds are considered to be agro-industrial residues, which can be used as source of macronutrients and/or raw material for extraction of vegetable oils, since they present great quantities of bioactive compounds. This study aimed to characterize the lipid fractions and the seeds of pumpkin (Cucurbita sp) varieties Nova Caravela, Mini Paulista, Menina Brasileira, and Moranga de Mesa aiming at using them in food. The chemical composition of the seeds was performed according to the official methods of American Oil Chemists' Society and Association of Official Analytical Chemists. Total carotenoids and phenolic compounds were determined by spectrophotometry, while the levels of tocopherols were analyzed by high efficiency liquid chromatography. It was noted that the seeds contain high amounts of macronutrients that are essential for the functioning of the human organism. As to total carotenoids, Mini Paulista and Menina Brasileira pumpkin varieties presented significant amounts, 26.80 and 26.03 µg/g, respectively. Mini Paulista and Nova Caravela pumpkin varieties showed high amounts of total phenolic compounds in the lipid fractions and in the seeds. It was also found that γ-tocopherol is the isomer that stood out in the lipid fractions and in the seeds, mainly in Menina Brasileira. Finally, the consumption of these seeds and use of lipid fractions provide the supply of large quantities of compounds that are beneficial for health and that may be potentially used in food, besides representing an alternative to better use of agro-industrial residues. PRACTICAL APPLICATION: Bioactive compounds, besides presenting basic nutritional functions, provide metabolic and physiological health benefits when consumed as part of the usual diet. Therefore, there is a growing interest in vegetable oils of special composition, such as the ones extracted from fruit seeds. The seeds of Cucurbita sp are shown to be promising sources of oils, and especially the Cucurbita moschata and maxima species have not yet been fully elucidated. For this reason, it becomes important to investigate the chemical composition and lipid fractions of these seeds, aiming to use them in food.


Assuntos
Antioxidantes/análise , Cucurbita/química , Gorduras na Dieta/análise , Óleos de Plantas/química , Sementes/química , Vitamina E/análise , Antioxidantes/economia , Brasil , Carotenoides/análise , Cucurbita/crescimento & desenvolvimento , Gorduras na Dieta/economia , Gorduras na Dieta/isolamento & purificação , Proteínas Alimentares/análise , Proteínas Alimentares/economia , Suplementos Nutricionais/economia , Alimentos Fortificados/análise , Alimentos Fortificados/economia , Indústria de Processamento de Alimentos/economia , Alimento Funcional/análise , Alimento Funcional/economia , Resíduos Industriais/análise , Resíduos Industriais/economia , Valor Nutritivo , Fenóis/análise , Óleos de Plantas/economia , Óleos de Plantas/isolamento & purificação , Proteínas de Plantas/análise , Proteínas de Plantas/economia , Sementes/crescimento & desenvolvimento , Especificidade da Espécie , Vitamina E/economia , alfa-Tocoferol/análise , gama-Tocoferol/análise
5.
Hepatology ; 56(6): 2172-9, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22707355

RESUMO

UNLABELLED: Nonalcoholic steatohepatitis (NASH) is the commonest liver disease in developed countries. However, there are no current data on the cost-effectiveness of therapeutic options such as lifestyle modification, pioglitazone, or vitamin E. We undertook a cost utility analysis to compare these strategies. Using a third-party payer perspective, a deterministic Markov model was developed to compare costs and health benefits of lifestyle modification alone or with pioglitazone or vitamin E in a cohort of patients aged 50 years with biopsy-proven NASH and fibrosis level 3 or greater. We assumed an annual cycle length over a lifetime horizon. Probability and utility estimates were derived from a systematic literature review, and uncertainties in parameter estimates were tested using one- and two-way sensitivity analyses. Our outcome measure was the incremental cost-effectiveness ratio (ICER), with $A50,000 or less considered cost-effective. In comparison with lifestyle modification alone, treatment with either pioglitazone or vitamin E in addition to lifestyle modification was cost-effective, with incremental cost-effectiveness ratios of $A2748 and $A8475 per quality-adjusted life year (QALY) gained, respectively. In a direct comparison, pioglitazone was more cost-effective than vitamin E (ICER $A2,056/QALY gained). Sensitivity analyses indicated that pioglitazone was not cost-effective if either the total drug cost was greater than $A16,000 per annum, or the annual probability of developing cirrhosis in advanced fibrosis was less than 2%. CONCLUSION: Our modeled analyses suggest that in patients with advanced fibrosis due to NASH, pharmacological treatment in addition to standard lifestyle modification is likely to be cost-effective.


Assuntos
Fígado Gorduroso/economia , Fígado Gorduroso/terapia , Hipoglicemiantes/economia , Tiazolidinedionas/economia , Vitamina E/economia , Vitaminas/economia , Terapia Combinada/economia , Análise Custo-Benefício , Fígado Gorduroso/complicações , Humanos , Hipoglicemiantes/uso terapêutico , Estilo de Vida , Cirrose Hepática/economia , Cirrose Hepática/etiologia , Cirrose Hepática/patologia , Cadeias de Markov , Hepatopatia Gordurosa não Alcoólica , Pioglitazona , Anos de Vida Ajustados por Qualidade de Vida , Índice de Gravidade de Doença , Tiazolidinedionas/uso terapêutico , Vitamina E/uso terapêutico , Vitaminas/uso terapêutico
6.
J Food Sci ; 76(1): C117-26, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21535639

RESUMO

Rice bran, a byproduct of the rice milling process, contains most of the phytochemicals. This study aimed at determining the concentrations of lipophilic, solvent-extractable (free), and cell wall-bound (bound) phytochemicals and their antioxidant capacities from brans of white, light brown, brown, purple, and red colors, and broccoli and blueberry for comparison. The concentrations of lipophilic antioxidants of vitamin E (tocopherol and tocotrienols) and γ-oryzanols were 319.67 to 443.73 and 3861.93 to 5911.12 µg/g bran dry weight (DW), respectively, and were not associated with bran color. The total phenolic, total flavonoid, and antioxidant capacities of ORAC (oxygen radical absorbance capacity), DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging, and iron-chelating in the free fraction were correlated with the intensity of bran color, while variations of these in the bound fraction were less than those in the free fraction among brans. Compounds in the bound fraction had higher antioxidant capacity of ORAC than DPPH, relative to those in the free fraction. The bound fraction of light-color brans contributed as much to its total ORAC as the free fraction. Total proanthocyanidin concentration was the highest in red rice bran, while total anthocyanin was highest in purple brans. The predominant anthocyanin was cyanidin-3-glucoside. Red and purple brans had several fold higher total phenolics and flavonoids as well as ORAC and DPPH, from both free and bound fractions, than freeze-dried blueberry and broccoli. These results indicate that rice brans are natural sources of hydrophilic and lipophilic phytochemicals for use in quality control of various food systems as well as for nutraceutical and functional food application.


Assuntos
Antioxidantes/análise , Fibras na Dieta/análise , Flavonoides/análise , Oryza/química , Fenóis/análise , Sementes/química , Antocianinas/análise , Antocianinas/química , Antocianinas/economia , Antioxidantes/química , Antioxidantes/economia , Parede Celular/química , Flavonoides/química , Flavonoides/economia , Aditivos Alimentares/análise , Aditivos Alimentares/química , Aditivos Alimentares/economia , Indústria de Processamento de Alimentos/economia , Sequestradores de Radicais Livres/análise , Sequestradores de Radicais Livres/química , Sequestradores de Radicais Livres/economia , Interações Hidrofóbicas e Hidrofílicas , Resíduos Industriais/análise , Resíduos Industriais/economia , Quelantes de Ferro/análise , Quelantes de Ferro/química , Quelantes de Ferro/economia , Fenóis/química , Fenóis/economia , Fenilpropionatos/análise , Fenilpropionatos/química , Fenilpropionatos/economia , Pigmentação , Polifenóis , Proantocianidinas/análise , Proantocianidinas/química , Proantocianidinas/economia , Solubilidade , Especificidade da Espécie , Vitamina E/análise , Vitamina E/química , Vitamina E/economia
7.
Ann Neurol ; 67(2): 258-60, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20225291

RESUMO

Multicenter clinical research involves parallel Institutional Review Board (IRB) reviews based on the premise that local review reflects aspects of the research environment. We examined the costs and effects of local IRB review of the consent and protocol in a multicenter clinical trial in Parkinson disease. Seventy-six percent of changes to the consent reflected standard institutional language, with no substantive changes to the protocol. The costs of this process exceeded $100,000. These findings support initiatives by the Office of Human Research Protections (OHRP) and the National Cancer Institute (NCI) to facilitate centralized reviews. This may be an opportune time for the National Institute of Neurological Disorders and Stroke (NINDS) to adopt a central review model.


Assuntos
Comitês de Ética em Pesquisa/economia , Comitês de Ética em Pesquisa/ética , Estudos Multicêntricos como Assunto/economia , Antioxidantes/economia , Antioxidantes/uso terapêutico , Pesquisa Biomédica/ética , Método Duplo-Cego , Comitês de Ética em Pesquisa/organização & administração , Humanos , Estudos Multicêntricos como Assunto/ética , Doença de Parkinson/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto , Ubiquinona/análogos & derivados , Ubiquinona/economia , Ubiquinona/uso terapêutico , Estados Unidos , Vitamina E/economia , Vitamina E/uso terapêutico
8.
Can J Psychiatry ; 49(7): 417-27, 2004 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15362245

RESUMO

OBJECTIVE: To describe the methods and patient characteristics of the Canadian Outcomes Study in Dementia (COSID). METHODS: COSID is a 3-year prospective study of dementia patients living in the community at the time of study registration. We assessed patients' cognition, behaviour, and functioning every 6 months, using the Modified Mini-Mental State Examination (3MS), the Neuropsychiatric Inventory (NPI), and the Functional Autonomy Measurement System (SMAF), respectively. We assessed caregivers, using the Zarit Burden Interview (ZBI). Additional information included the Global Deterioration Scale (GDS), patients' driving status, and clinical information including family history, dementia type, concomitant medications, and comorbid conditions. From the patient or caregiver, we collected details of inpatient and outpatient resources used by the patient and (or) caregiver. RESULTS: We enrolled 766 patients from 31 Canadian sites. Overall mean age was 76.8 years, and mean age of onset was 73.1 years. Of the total patients, 98% were white, 54% were women, and 84% were diagnosed with Alzheimer's disease. Mean baseline 3MS was 66.5, NPI was 9.5, and SMAF was 18.30. Of these patients, 48% reported a GDS score of 3 (that is, moderate), 16% reported a GDS score of 4 (that is, moderately severe), and the remaining 36% reported a GDS score of 1 or 2 (that is, mild or very mild). At baseline, 83% of patients received cholinesterase inhibitors, 46% received nonsteroidal antiinflammatory drugs, 39% received vitamin E, and 25% received antidepressants. Adult day care and home help were the largest cost factors in this population, with mean monthly costs of $65 and $64, respectively. We found interesting differences in the resources used among geographic regions and care settings. CONCLUSIONS: COSID is already generating valuable information about treatment patterns, outcomes, and resource use in Canadian patients with dementia. As the data mature, it will be possible to build robust models on treatment effectiveness and costs of care.


Assuntos
Doença de Alzheimer/tratamento farmacológico , Avaliação de Resultados em Cuidados de Saúde , Idoso , Doença de Alzheimer/diagnóstico , Doença de Alzheimer/economia , Anti-Inflamatórios não Esteroides/economia , Anti-Inflamatórios não Esteroides/uso terapêutico , Canadá , Inibidores da Colinesterase/economia , Inibidores da Colinesterase/uso terapêutico , Análise por Conglomerados , Diagnóstico Diferencial , Manual Diagnóstico e Estatístico de Transtornos Mentais , Tratamento Farmacológico/economia , Tratamento Farmacológico/estatística & dados numéricos , Quimioterapia Combinada , Feminino , Nível de Saúde , Humanos , Masculino , Serviços de Saúde Mental/economia , Serviços de Saúde Mental/estatística & dados numéricos , Serviços de Saúde Mental/provisão & distribuição , Fitoterapia/economia , Fitoterapia/estatística & dados numéricos , Estudos Prospectivos , Garantia da Qualidade dos Cuidados de Saúde/normas , Estudos de Amostragem , Índice de Gravidade de Doença , Vitamina E/economia , Vitamina E/uso terapêutico
9.
Prog Cardiovasc Nurs ; 14(4): 124-9, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-10689723

RESUMO

Several nutritional interventions for cardiovascular disease (CVD) prevention and therapy have recently appeared in the biomedical literature. These include appropriate use of several vitamins (E, C, B6, folate) and conditionally essential nutrients (CoQ10, L-arginine, propionyl L-carnitine). Possible undesirable consequences of long term nutritional supplementation with vitamin E and of adverse drug-nutrient interactions between the statins and CoQ10 are also considered. Although additional intervention studies are needed, current scientific evidence generally supports nutritional supplementation with these nutrients as an effective adjunctive strategy for CVD control.


Assuntos
Antioxidantes/uso terapêutico , Ácido Ascórbico/uso terapêutico , Doenças Cardiovasculares/dietoterapia , Doenças Cardiovasculares/prevenção & controle , Sequestradores de Radicais Livres/uso terapêutico , Complexo Vitamínico B/uso terapêutico , Vitamina E/uso terapêutico , Antioxidantes/economia , Arginina/economia , Arginina/uso terapêutico , Ácido Ascórbico/economia , Carnitina/economia , Carnitina/uso terapêutico , Coenzimas , Análise Custo-Benefício , Sequestradores de Radicais Livres/economia , Humanos , Necessidades Nutricionais , Prevenção Primária/métodos , Ubiquinona/análogos & derivados , Ubiquinona/economia , Ubiquinona/uso terapêutico , Complexo Vitamínico B/economia , Vitamina E/economia
10.
Am J Cardiol ; 82(4): 414-7, 1998 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-9723625

RESUMO

Epidemiologic studies have suggested that vitamin E (alpha-tocopherol) may play a preventive role in reducing the incidence of atherosclerosis. The aim of this paper was to conduct a cost-effectiveness analysis of vitamin E supplementation in patients with coronary artery disease using data from the Cambridge Heart Antioxidant Study (CHAOS). The study compared cost-effectiveness in the context of Australian and United States (US) health care utilization. The main clinical outcome used in the economic evaluation was the incidence of acute myocardial infarction (AMI) which was nonfatal. Utilization of health care resources was estimated by conducting a survey of Australian clinicians and published Australian and US cost data. Cost savings of $127 (A$181) and $578/patient randomized to vitamin E therapy compared with patients receiving placebo were found for Australian and US settings, respectively. Savings in the vitamin E group were due primarily to reduction in hospital admissions for AMI. This occurred because the vitamin E group had a 4.4% lower absolute risk of AMI than did the placebo group. Less than 10% of health care costs in the Australian evaluation was due to vitamin E ($150 [A$214/patient]). Our economic evaluation indicates that vitamin E therapy in patients with angiographically proven atherosclerosis is cost-effective in the Australian and US settings.


Assuntos
Angiografia Coronária , Doença das Coronárias/tratamento farmacológico , Doença das Coronárias/economia , Custos de Cuidados de Saúde/estatística & dados numéricos , Vitamina E/economia , Vitamina E/uso terapêutico , Austrália , Doença das Coronárias/diagnóstico por imagem , Redução de Custos , Análise Custo-Benefício , Humanos , Infarto do Miocárdio/economia , Infarto do Miocárdio/prevenção & controle , Estados Unidos
11.
Poult Sci ; 76(12): 1682-7, 1997 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9438282

RESUMO

Two experiments were conducted to determine the influence of dietary vitamin E on the response of young male turkeys to Escherichia coli infection. A complete factorial arrangement of two concentrations of supplemental dietary vitamin E (12 or 300 IU/kg as dl-alpha-tocopheryl acetate) and infection or no infection of turkeys with E. coli was used in both experiments. In Experiment 1, each dietary treatment was fed to four pens of turkeys from 1 to 28 d of age. At 28 d, turkeys in two pens per dietary treatment received an injection of 3.0 x 10(7) E. coli cells into the left and right thoracic air sacs. All turkeys were necropsied 7 d after E. coli injection and the incidence and severity of lesions in air sacs, lungs, pericardium, and liver were determined. The same dietary vitamin E treatments were used in Experiment 2. Each diet was fed to eight pens of turkeys from 1 to 47 d of age. At 47 d, turkeys in four pens per dietary treatment received an injection of 3.0 x 10(7) cells of the same E. coli used in Experiment 1 into the left and right thoracic air sacs. All turkeys were necropsied as in Experiment 1 at 54 d of age. Weight gain and efficiency of feed utilization were impaired markedly by E. coli infection during the 7 d after injection. Livability also was decreased by E. coli infection in Experiment 1 but not in Experiment 2. Adverse effects of E. coli on performance and livability were not affected by dietary vitamin E concentration. Lesions observed in turkeys that received E. coli injection ranged from mild to severe, with the most severe lesions observed in air sacs. Lung lesions were observed frequently but were less severe than in air sacs. Dietary concentration of vitamin E had no effect on incidence or severity of lesions in air sacs or lungs. Overall, the results of these experiments show that adding 300 IU of vitamin E/kg of diet did not alleviate the adverse effects of E. coli infection in young turkeys.


Assuntos
Dieta/veterinária , Infecções por Escherichia coli/veterinária , Doenças das Aves Domésticas/fisiopatologia , Perus , Vitamina E/uso terapêutico , Animais , Peso Corporal/efeitos dos fármacos , Peso Corporal/fisiologia , Suplementos Nutricionais , Infecções por Escherichia coli/tratamento farmacológico , Infecções por Escherichia coli/fisiopatologia , Fígado/patologia , Masculino , Pericárdio/patologia , Doenças das Aves Domésticas/tratamento farmacológico , Doenças das Aves Domésticas/patologia , Distribuição Aleatória , Sistema Respiratório/patologia , Índice de Gravidade de Doença , Vitamina E/economia , Vitamina E/farmacologia , Aumento de Peso/efeitos dos fármacos , Aumento de Peso/fisiologia
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