Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 11 de 11
Filtrar
Más filtros











Base de datos
Intervalo de año de publicación
1.
Foods ; 10(6)2021 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-34067239

RESUMEN

Brewer's spent grain (BSG) is the main side-stream of brewing. BSG is a potential source for nutritionally enriched cereal products due to its high content of fibre and protein. Two novel ingredients originating from BSG, EverVita FIBRA (EVF) and EverVita PRO (EVP), were incorporated into bread in two addition levels to achieve a 'source of fibre' (3 g/100 g) and a 'high in fibre' (6 g/100 g) nutrition claim for the breads. The impact of those two ingredients on dough and bread quality as well as on nutritional value was investigated and compared to baker's flour (C1) and wholemeal flour (C2) breads. The addition of EVF performed outstandingly well in the bread system achieving high specific volumes (3.72-4.66 mL/g), a soft crumb texture (4.77-9.03 N) and a crumb structure comparable with C1. Furthermore, EVF barely restricted gluten network development and did not influence dough rheology. EVP increased the dough resistance (+150%) compared to C1 which led to a lower specific volume (2.17-4.38 mL/g) and a harder crumb (6.25-36.36 N). However, EVP increased the nutritional value of the breads by increasing protein content (+36%) and protein quality by elevating the amount of indispensable amino acids. Furthermore, a decrease in predicted glycaemic index by 26% was achieved and microbial shelf life was extended by up to 3 days. Although both ingredients originated from the same BSG, their impact on bread characteristics and nutritional value varied. EVF and EVP can be considered as game-changers in the development of bread fortified with BSG, increasing nutritional value, and promoting sustainability.

2.
Eur J Nutr ; 60(8): 4393-4411, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34057578

RESUMEN

PURPOSE: Brewers' spent grain (BSG) represents the largest by-product of the brewing industry. Its utilisation as an animal feed has become less practical today; however, its high fibre and protein content make it a promising untapped resource for human nutrition. BSG contains mainly insoluble fibre. This fibre, along with protein, is trapped with the complex lignocellulosic cell structure and must be solubilised to release components which may be beneficial to health through modulation of the gut microbiota. METHODS: In this study, the application of a simultaneous saccharification and fermentation process for the extraction and solubilisation of arabinoxylan from BSG is demonstrated. RESULTS: Processing of the BSG was varied to modulate the physicochemical and molecular characteristic of the released arabinoxylan. The maximum level of arabinoxylan solubilisation achieved was approximately 21%, compared to the unprocessed BSG which contained no soluble arabinoxylan (AX). Concentration of the solubilised material produced a sample containing 99% soluble AX. Samples were investigated for their microbiome modulating capacity in in-vitro faecal fermentation trials. Many samples promoted increased Lactobacillus levels (approx. twofold). One sample that contained the highest level of soluble AX was shown to be bifidogenic, increasing the levels of this genus approx. 3.5-fold as well as acetate (p = 0.018) and propionate (p < 0.001) production. CONCLUSION: The findings indicate that AX extracted from BSG has prebiotic potential. The demonstration that BSG is a source of functional fibre is a promising step towards the application of this brewing side-stream as a functional food ingredient for human nutrition.


Asunto(s)
Grano Comestible , Microbiota , Animales , Fermentación , Humanos , Xilanos
3.
Handb Clin Neurol ; 177: 393-408, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33632455

RESUMEN

Anxiety is associated with many forms and facets of heart disease, and, by extension, neurologic manifestations of heart disease. Despite its seeming self-evidence, anxiety is challenging to consistently define, measure, and operationalize in the context of medical research. Various diagnostic nosologies have been defined and refined over time, but anxiety is also a universal human experience that may be "normal" in many circumstances, particularly in the face of major medical issues. For these and other reasons, the research on anxiety and heart disease is mixed, incomplete, and often characterized by challenging questions of causality. Nonetheless, a broad body of literature has established clear connections between anxiety and vascular risk factors, cardiac disease, and cardiac surgery. These relationships are often intuitive, with research suggesting, for example, that chronic activation of the sympathetic nervous system is associated with increased risk of heart disease. However, they are sometimes complexly reciprocal or even surprising (e.g., with high-anxiety individuals found to have better outcomes in some cardiac conditions by virtue of seeking evaluation and treatment earlier). This chapter reviews the construct of anxiety and its complexities, its associations with heart disease, and the established treatments for anxiety, concluding with questions about anxiety, heart disease, and their optimal management that still need to be answered.


Asunto(s)
Ansiedad , Procedimientos Quirúrgicos Cardíacos , Cardiopatías , Ansiedad/terapia , Procedimientos Quirúrgicos Cardíacos/efectos adversos , Cardiopatías/complicaciones , Cardiopatías/epidemiología , Cardiopatías/terapia , Humanos
4.
J Head Trauma Rehabil ; 36(1): 44-55, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32898030

RESUMEN

BACKGROUND: Limitations in everyday functioning are frequently reported by veterans with a history of mild traumatic brain injury (mTBI) and/or posttraumatic stress disorder (PTSD). Multiple factors are associated with functional disability among veterans, including depression, poor social support, cognition, and substance use. However, the degree to which these factors, particularly cognitive capacities, contribute to functional limitations remains unclear. METHODS: We evaluated performance on tests of processing speed, executive functioning, attention, and memory as predictors of functioning on the World Health Organization Disability Assessment Scale (WHODAS) 2.0 in 288 veterans. Participants were placed in one of the following groups: PTSD-only, mTBI-only, mTBI + PTSD, and neither PTSD nor mTBI (deployed control group). Cognitive test performances were evaluated as predictors of WHODAS 2.0 functional ratings in regression models that included demographic variables and a range of mood, behavioral health, and postconcussive symptom ratings. RESULTS: Multiple cognitive test performances predicted WHODAS 2.0 scores in the deployed control group, but they generally did not predict functioning in the clinical groups when accounting for demographics, mood, behavioral health, and postconcussive symptoms. CONCLUSIONS: In veterans with mTBI and/or PTSD, cognitive test performances are less associated with everyday functioning than mood and postconcussive symptoms.


Asunto(s)
Conmoción Encefálica , Síndrome Posconmocional , Trastornos por Estrés Postraumático , Veteranos , Campaña Afgana 2001- , Conmoción Encefálica/diagnóstico , Cognición , Humanos , Guerra de Irak 2003-2011 , Pruebas Neuropsicológicas , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/epidemiología
5.
Clin Neuropsychol ; 34(7-8): 1480-1497, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32883155

RESUMEN

Objective: The illness resulting from Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), better known as COVID-19, has quickly escalated to a worldwide pandemic. Although understanding of the short and long-term manifestations of COVID-19 remains incomplete, there is a preponderance of respiratory pathology in COVID-19 and potential for chronic loss of pulmonary function in recovered patients, raising concerns for associated cognitive impacts.Method: We conducted a narrative review of the existing literature on neuropsychological variables in acute/severe respiratory disease and various forms of chronic pulmonary disease to inform expectations about potential cognitive manifestations of COVID-19.Results: Cognitive dysfunction is common but not inevitable in acute and chronic pulmonary disease, although unique predictors and symptom trajectories appear to be associated with each.Conclusions: Although the full scope of neuropathophysiology associated with COVID-19 remains to be established, pulmonary insults associated with the disease are likely to produce cognitive dysfunction in a substantial percentage of patients.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/psicología , Enfermedades Pulmonares/epidemiología , Enfermedades Pulmonares/psicología , Neuropsicología/métodos , Neumonía Viral/epidemiología , Neumonía Viral/psicología , Enfermedad Aguda , COVID-19 , Enfermedad Crónica , Infecciones por Coronavirus/terapia , Humanos , Enfermedades Pulmonares/terapia , Pruebas Neuropsicológicas , Pandemias , Neumonía Viral/terapia , SARS-CoV-2
6.
Arch Clin Neuropsychol ; 35(6): 683-691, 2020 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-32318698

RESUMEN

OBJECTIVE: Value in evaluating error subtypes on visuospatial line orientation tests has been reported. Directional bias metrics for line orientation test errors represent easily quantifiable data that have not previously been studied. We evaluated whether patients with a clinical condition known to affect visuospatial functioning (Parkinson's disease [PD]) exhibited unique directional error patterns on the RBANS Line Orientation test relative to other neuropsychology-referred patients. METHOD: We compared overall directional bias in errors, directional bias by line location (left or right line and visual field), and absolute error rates (regardless of direction) by line location in a retrospective sample of patients with PD and a sample of neuropsychology-referred patients without PD. Groups were roughly matched on age, education, gender, and overall level of cognitive impairment. RESULTS: Patients with PD exhibited higher rates of leftward bias in errors, both overall and for the left stimulus line in each pair. Directional bias error scores better predicted PD versus non-PD group status than RBANS Line Orientation raw scores. Classification accuracy data for these variables were modest in the entire sample but stronger in a subsample of patients with mild levels of overall cognitive impairment. CONCLUSIONS: Directional bias metrics for line orientation tests represent easily quantifiable data with potential theoretical and clinical value. In our sample, patients with PD made more left-biased line orientation errors than other neuropsychology-referred patients. By themselves, directional bias scores may have limited diagnostic potential, but they may be useful in diagnostic classification models and may have implications for clinical care.


Asunto(s)
Disfunción Cognitiva , Orientación Espacial , Enfermedad de Parkinson , Humanos , Pruebas Neuropsicológicas , Orientación , Enfermedad de Parkinson/complicaciones , Estudios Retrospectivos
7.
Appl Neuropsychol Adult ; 27(1): 82-86, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-30183428

RESUMEN

Performance Validity Testing has become an integral part of neuropsychological assessment, and a variety of embedded screening measures for performance validity have been proposed. Several performance validity indexes have been developed for the Repeatable Battery for the Assessment of Neuropsychological Status. Although the RBANS Effort Index (EI) and Effort Scale (ES) have garnered some empirical support, other research has raised questions regarding their accuracy in a number of assessment contexts. We evaluated the classification accuracy of the EI and ES against a standalone performance validity measure (Test of Memory Malingering; TOMM) in a mixed clinical patient sample. Our results showed limited utility for the ES in a mixed sample and modest classification accuracy for the EI, raising concerns about the appropriate scope of use for these scales in general clinical practice, which suggested that an alternate EI cutoff score of >0 may be most appropriate.


Asunto(s)
Disfunción Cognitiva/diagnóstico , Simulación de Enfermedad/diagnóstico , Pruebas de Memoria y Aprendizaje/normas , Pruebas Neuropsicológicas/normas , Psicometría/normas , Adulto , Femenino , Humanos , Masculino
8.
Appl Neuropsychol Adult ; 23(5): 384-9, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27218477

RESUMEN

Despite being one of the most widely used measures in clinical neuropsychology, the Trail Making Test is highly reliant on intact vision and motor functioning. Given that these capacities are often compromised in patients requiring neuropsychological evaluation, various authors have proposed methods for adapting the Trail Making Test for oral administration. To date, a number of administration and score transformation methods have been proposed. We reviewed the existing literature on oral adaptation of the Trail Making Test in order to provide recommendations for practicing clinicians wishing to use the measure, and to highlight directions for future research.


Asunto(s)
Estimulación Acústica , Neuropsicología/métodos , Neuropsicología/tendencias , Prueba de Secuencia Alfanumérica , Humanos
9.
Soc Sci Res ; 57: 253-72, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-26973043

RESUMEN

Plenty of studies show that the physical appearance of a person affects a variety of outcomes in everyday life. However, due to an incomplete theoretical explication and empirical problems in disentangling different beauty effects, it is unclear which mechanisms are at work. To clarify how beauty works we present explanations from evolutionary theory and expectation states theory and show where both perspectives differ and where interlinkage appears promising. Using students' evaluations of teaching we find observational and experimental evidence for the different causal pathways of physical attractiveness. First, independent raters strongly agree over the physical attractiveness of a person. Second, attractive instructors receive better student ratings. Third, students attend classes of attractive instructors more frequently - even after controlling for teaching quality. Fourth, we find no evidence that attractiveness effects become stronger if rater and ratee are of the opposite sex. Finally, the beauty premium turns into a penalty if an attractive instructor falls short of students' expectations.


Asunto(s)
Actitud , Belleza , Docentes , Apariencia Física , Estudiantes , Evolución Biológica , Femenino , Humanos , Masculino , Teoría Psicológica , Enseñanza
10.
Appl Neuropsychol Adult ; 20(3): 169-178, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-30567048

RESUMEN

This study examined the equivalence of a graphics tablet-based computer administration of the Rey Complex Figure Test (RCF) with a traditional paper-and-pencil administration of the RCF. Participants were also assessed for computer anxiety, attitudes, and familiarity, as well as comfort with the computer equipment used in the study. Sixty-two undergraduate volunteers completed the RCF using the computer graphics tablet and an alternate form of the test (Taylor Complex Figure; TCF) using pencil and paper. RCF and TCF copies were independently scored by two pairs of scorers. No significant performance differences were observed in the first scoring pair; however, participants scored significantly higher on their paper-and-pencil reproduction than on their tablet reproduction in the second pair. No significant relationships between computer-based RCF performance and preexisting computer attitudes, anxiety, or familiarity were found. Participants' ratings suggested that the graphics tablet was perceived as interesting but more difficult to use than the paper-and-pencil administration method. Despite the potential administration and scoring advantages of a computer graphics tablet-based administration, results did not support tablet use as an alternate administration method for the RCF.

11.
J Food Prot ; 67(8): 1709-18, 2004 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-15330538

RESUMEN

Ready-to-eat (RTE) meats (low-fat pastrami, Strassburg beef, export sausage, and Cajun beef) were pressure treated at 600 MPa, 20 degrees C, for 180 s to evaluate the feasibility of using high-pressure processing (HPP) for the safe shelf-life extension of these products. After processing, samples were stored at 4 degrees C for 98 days during which time microbiological enumeration and enrichments were performed. Additionally, sensory analyses were undertaken to determine consumer acceptability and purchase intent over the duration of storage. Counts of aerobic and anaerobic mesophiles, lactic acid bacteria, Listeria spp., staphylococci, Brochothrix thermosphacta, coliforms, and yeasts and molds revealed that there were undetectable or low levels for all types of microorganisms throughout storage. Comparison of consumer hedonic ratings for unprocessed and processed meats revealed no difference in consumer acceptability, and no deterioration in the sensory quality was evident for any of the products tested during the study. Additionally, inoculated pack studies were conducted to determine if HPP could be used as a postlethality treatment to reduce or eliminate Listeria monocytogenes and thus assess the potential use of HPP in a hazard analysis critical control point plan for production of RTE meats. Inoculated samples (initial level of 10(4) CFU/g) were pressure treated (600 MPa, 20 degrees C, for 180 s) and stored at 4 degrees C, and survival of L. monocytogenes was monitored for 91 days. L. monocytogenes was not detected by plating methods until day 91, but selective enrichments showed sporadic recovery in three of the four products examined. The results show that HPP at 600 MPa, 20 degrees C, for 180 s can extend the refrigerated shelf life of RTE meats and reduce L. monocytogenes numbers by more than 4 log CFU/g in inoculated product.


Asunto(s)
Bacterias/crecimiento & desarrollo , Seguridad de Productos para el Consumidor , Conservación de Alimentos/métodos , Productos de la Carne/microbiología , Productos de la Carne/normas , Presión , Bacterias/aislamiento & purificación , Recuento de Colonia Microbiana , Manipulación de Alimentos/métodos , Microbiología de Alimentos , Humanos , Listeria monocytogenes/crecimiento & desarrollo , Listeria monocytogenes/aislamiento & purificación , Gusto , Temperatura , Factores de Tiempo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA