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"Phase angle"

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https://www.readbyqxmd.com/read/28199889/polyphosphate-and-myofibrillar-protein-extract-promote-transglutaminase-mediated-enhancements-of-rheological-and-textural-properties-of-pse-pork-meat-batters
#1
Tomasz Lesiow, Gregg K Rentfrow, Youling L Xiong
The objective of this study was to improve the rheological (storage modulus G'; phase angle δ) and textural (hardness; breaking force) properties of nitrite-cured sausage batters prepared from pale, soft, exudative (PSE) pork with microbial transglutaminase (TG) using isolated myofibrillar protein (MP) or MP extracted by sodium tripolyphosphate (TPP) as substrates. While TG alone significantly enhanced G', δ and hardness, its combination with TPP was more pronounced as these product quality parameters were increased to the level equal to that of the counterpart batter made from normal (red, firm, non-exudative, RFN) pork...
February 5, 2017: Meat Science
https://www.readbyqxmd.com/read/28198913/body-composition-in-patients-with-crohn-s-disease-and-ulcerative-colitis
#2
Ivi Ribeiro Back, Sonia Silva Marcon, Natalia Moreno Gaino, Daniela Salate Biagioni Vulcano, Mariana de Souza Dorna, Ligia Yukie Sassaki
BACKGROUND: The nutritional status of individuals with inflammatory bowel diseases is directly related to the severity of the disease and is associated with poor prognosis and the deterioration of immune competence. OBJECTIVE: To assess the nutritional status and the body composition of outpatients with inflammatory bowel diseases. METHODS: A cross-sectional study was conducted with clinical and nutritional assessment of patients with Crohn's disease and ulcerative colitis...
February 13, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28193488/validation-of-periodic-fmri-signals-in-response-to-wearable-tactile-stimulation
#3
Ching-Fu Chen, Kenneth Kreutz-Delgado, Martin I Sereno, Ruey-Song Huang
To map cortical representations of the body, we recently developed a wearable technology for automatic tactile stimulation in human functional magnetic resonance imaging (fMRI) experiments. In a two-condition block design experiment, air puffs were delivered to the face and hands periodically. Surface-based regions of interest (S-ROIs) were initially identified by thresholding a linear statistical measure of signal-to-noise ratio of periodic response. Across subjects, S-ROIs were found in the frontal, primary sensorimotor, posterior parietal, insular, temporal, cingulate, and occipital cortices...
February 10, 2017: NeuroImage
https://www.readbyqxmd.com/read/28191775/noninvasive-assessment-of-an-engineered-bioactive-graft-in-myocardial-infarction-impact-on-cardiac-function-and-scar-healing
#4
Carolina Gálvez-Montón, Ramon Bragós, Carolina Soler-Botija, Idoia Díaz-Güemes, Cristina Prat-Vidal, Verónica Crisóstomo, Francisco M Sánchez-Margallo, Aida Llucià-Valldeperas, Paco Bogónez-Franco, Isaac Perea-Gil, Santiago Roura, Antoni Bayes-Genis
Cardiac tissue engineering, which combines cells and biomaterials, is promising for limiting the sequelae of myocardial infarction (MI). We assessed myocardial function and scar evolution after implanting an engineered bioactive impedance graft (EBIG) in a swine MI model. The EBIG comprises a scaffold of decellularized human pericardium, green fluorescent protein-labeled porcine adipose tissue-derived progenitor cells (pATPCs), and a customized-design electrical impedance spectroscopy (EIS) monitoring system...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28187148/nutritional-status-and-body-composition-by-bioelectrical-impedance-vector-analysis-a-cross-sectional-study-in-mild-cognitive-impairment-and-alzheimer-s-disease
#5
Ilaria Cova, Simone Pomati, Laura Maggiore, Marica Forcella, Valentina Cucumo, Roberta Ghiretti, Giulia Grande, Fulvio Muzio, Claudio Mariani
AIMS: Analysis of nutritional status and body composition in Alzheimer's disease (AD) and Mild Cognitive Impairment (MCI). METHODS: A cross-sectional study was performed in a University-Hospital setting, recruiting 59 patients with AD, 34 subjects with MCI and 58 elderly healthy controls (HC). Nutritional status was assessed by anthropometric parameters (body mass index; calf, upper arm and waist circumferences), Mini Nutritional Assessment (MNA) and body composition by bioelectrical impedance vector analysis (BIVA)...
2017: PloS One
https://www.readbyqxmd.com/read/28186494/oscillatory-pattern-of-acral-skin-blood-flow-within-thermoneutral-zone-in-healthy-humans
#6
Maja Elstad, Ilias Zilakos, Tone Bergersen
OBJECTIVE: The acral skin contains arteriovenous anastomoses, which probably is the main part of skin microcirculation for blood flow adjustments and thermoregulation in the thermoneutral zone. The objective was to investigate if an increase in sympathetic activation during cooling influences the oscillatory pattern of acral skin blood flow. APPROACH: We had measurements of bilateral acral skin blood flow (n=12) during lowering of ambient temperature from 32°C to 18°C...
February 10, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28183817/comparison-between-the-phase-angle-and-phase-shift-parameters-to-assess-thoracoabdominal-asynchrony-in-copd-patients
#7
Desiderio Cano Porras, Adriana C Lunardi, Cibele C B Marques da Silva, Denise M Paisani, Rafael Stelmach, Henrique Takachi Moriya, Celso R F Carvalho
BACKGROUND: Determining the presence of thoracoabdominal asynchrony in chronic obstructive pulmonary disease patients is clinically relevant, but there is no consensus on the optimal parameters for performing this analysis. METHODS: We assessed 22 COPD patients (FEV1 40±10% predicted) and 13 healthy controls during rest and exercise with optoelectronic plethysmography (70% maximum workload) on a cycle ergometer. Thoracoabdominal asynchrony was calculated by using phase angle and phase shift parameters following a three-compartment model involving the upper and lower ribcages and abdomen...
February 9, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28174440/analysis-of-affected-and-non-affected-sides-of-stroke-hemiparalysis-patients-and-correlations-between-rehabilitation-therapy-assessments-using-the-bioelectrical-impedance-analysis-method
#8
ChanUk Yoo, SeongKyo Suh, YoungGyu Kim
[Purpose] The purpose of this study was to demonstrate the use of bioelectrical impedance analysis as an appropriate rehabilitation therapy evaluation tool for stroke hemiplegic patients. [Subjects and Methods] A group of 20 stroke patients diagnosed with stroke hemiplegia who underwent stroke rehabilitation from October to November 2015 participated in this study. Using bioelectrical impedance analysis, stroke hemiparalysis patients were examined, and the affected and non-affected sides were compared. This correlation between impedance measurement values and rehabilitation therapy as an assessment tool was determined...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28169197/assessing-the-immediate-impact-of-botulinum-toxin-injection-on-impedance-of-spastic-muscle
#9
Xiaoyan Li, Henry Shin, Le Li, Elaine Magat, Sheng Li, Ping Zhou
This study aimed to investigate the immediate impacts of Botulinum Toxin A (BoNT-A) injections on the inherent electrical properties of spastic muscles using a newly developed electrical impedance myography (EIM) technique. Impedance measures were performed before and after a BoNT-A injection in biceps brachii muscles of 14 subjects with spasticity. Three major impedance variables, resistance (R), reactance (X) and phase angle (θ) were obtained from three different configurations, and were evaluated using the conventional EIM frequency at 50kHz as well as multiple frequency analysis...
February 3, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28165555/nutritional-status-and-intrarenal-arterial-stiffness-in-cardiorenal-syndrome-a-pilot-study
#10
A Gigante, F Di Mario, B Barbano, E Rosato, G Di Lazzaro Giraldi, R Pofi, M L Gasperini, D Amoroso, R Cianci, A Laviano
OBJECTIVE: Cardio-Renal Syndrome (CRS) is a condition, which is more frequently observed in clinical practice. The aim of this study is to explore nutritional status and intrarenal arterial stiffness in patients affected by CRS. PATIENTS AND METHODS: 14 consecutive CRS patients, screened for anthropometry, biochemistry, nutritional and metabolic status underwent renal Doppler ultrasound and whole-body bioimpedance spectroscopy (BIS). RESULTS: We found a positive correlation between phase angle (PA) and CKD-EPI and MDRD (p=0...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28142239/ph-controlled-electrochemical-deposition-of-polyelectrolyte-complex-films
#11
Kazi Sadman, Qifeng Wang, Shawn H Chen, David Efim Delgado, Kenneth R Shull
Polyelectrolyte complex (PEC) films made from oppositely charged polymer chains have applications as drug delivery vehicles, separation membranes, and biocompatible coatings. Conventional layer-by-layer (LbL) techniques for polyelectrolyte coatings are low-throughput and multistep processes that are quite slow for building films on the order of micrometers. In this work, PEC films are electrochemically deposited using a rapid one-pot method yielding thick (1 μm) films within short experimental time scales (5 min)...
February 1, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28117662/multivariate-cross-frequency-coupling-via-generalized-eigendecomposition
#12
Michael X Cohen
This paper presents a new framework for analyzing cross-frequency coupling in multichannel electrophysiological recordings. The generalized eigendecomposition-based cross-frequency coupling framework (gedCFC) is inspired by source-separation algorithms combined with dynamics of mesoscopic neurophysiological processes. It is unaffected by factors that confound traditional CFC methods-such as non-stationarities, non-sinusoidality, and non-uniform phase angle distributions-attractive properties considering that brain activity is neither stationary nor perfectly sinusoidal...
January 24, 2017: ELife
https://www.readbyqxmd.com/read/28110146/enhanced-arm-swing-alters-interlimb-coordination-during-overground-walking-in-individuals-with-traumatic-brain-injury
#13
Ksenia I Ustinova, Joseph E Langenderfer, Nilanthy Balendra
The current study investigated interlimb coordination in individuals with traumatic brain injury (TBI) during overground walking. The study involved 10 participants with coordination, balance, and gait abnormalities post-TBI, as well as 10 sex- and age-matched healthy control individuals. Participants walked 12m under two experimental conditions: 1) at self-selected comfortable walking speeds; and 2) with instructions to increase the amplitude and out-of-phase coordination of arm swinging. The gait was assessed with a set of spatiotemporal and kinematic parameters including the gait velocity, step length and width, double support time, lateral displacement of the center of mass, the amplitude of horizontal trunk rotation, and angular motions at shoulder and hip joints in sagittal plane...
January 19, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28096437/phase-angle-predicts-arterial-stiffness-and-vascular-calcification-in-peritoneal-dialysis-patients
#14
Margarida Sarmento-Dias, Carla Santos-Araújo, Rui Poínhos, Bruno Oliveira, Maria Sousa, Liliana S Silva, Isabel S Silva, Flora Correia, Manuel Pestana
♦ Objectives: Fluid overload (FO) is frequently present in peritoneal dialysis (PD) patients and is associated with markers of malnutrition, inflammation, and atherosclerosis/calcification (MIAC) syndrome. We examined the relationships in stable PD patients between phase angle (PhA) and the spectrum of uremic vasculopathy including vascular calcification and arterial stiffness and between PhA and changes in serum fetuin-A levels. ♦ Methods: Sixty-one stable adult PD patients were evaluated in a cross-sectional study (ST1)...
January 17, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28096060/nutritional-status-and-bioelectrical-phase-angle-assessment-in-adult-crohn-disease-patients-receiving-anti-tnf%C3%AE-therapy
#15
Sara Emerenziani, Livia Biancone, Michele Pier Luca Guarino, Paola Balestrieri, Elisa Stasi, Mentore Ribolsi, Maria Paola Rescio, Annamaria Altomare, Silvia Cocca, Francesco Pallone, Michele Cicala
BACKGROUND: Altered body composition is frequently observed in Crohn's disease (CD) patients. AIMS: To investigate the nutritional status, and the effect of different therapeutic regimes in adult CD patients. METHODS: Fat free mass (FFM) and BIA-derived phase angle (PhA) were assessed in 45 CD patients, 22 on conventional therapy (CT) and 23 on maintenance therapy with infliximab (MT). Nutritional status was also assessed in 12 CD patients before and following the induction protocol with infliximab...
December 30, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28087763/circadian-kinetics-of-cell-cycle-progression-in-adult-neurogenic-niches-of-a-diurnal-vertebrate
#16
Veronica Akle, Alexander J Stankiewicz, Vasili Kharchenko, Lili Yu, Peter V Kharchenko, Irina V Zhdanova
: The circadian system may regulate adult neurogenesis via intracellular molecular clock mechanisms or by modifying the environment of neurogenic niches, with daily variation in growth factors or nutrients depending on the animal's diurnal or nocturnal life-style. In a diurnal vertebrate, zebrafish, we studied circadian distribution of immunohistochemical markers of the cell division cycle (CDC) in five of the sixteen neurogenic niches of adult brain, the dorsal telencephalon, habenula, preoptic area, hypothalamus and cerebellum...
January 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28079435/bioelectrical-impedance-analysis-of-head-and-neck-cancer-patients-at-presentation
#17
Marie Lundberg, Pia Nikander, Katja Tuomainen, Helena Orell-Kotikangas, Antti Mäkitie
CONCLUSION: Finnish head and neck cancer (HNC) patients show signs of severe malnutrition already at presentation, measured by bioelectric impedance analysis (BIA). BIA may be a practical method to detect malnutrition, analyze body composition, and to identify high-risk patients in this population. OBJECTIVES: BIA is a validated method for evaluating body composition and detecting malnutrition. Low phase angle (PA) is associated with increased mortality and morbidity...
January 12, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28063860/could-objective-tests-be-used-to-measure-fatigue-in-patients-with-advanced-cancer
#18
Gustavo Schvartsman, Minjeong Park, Diane D Liu, Sriram Yennu, Eduardo Bruera, David Hui
CONTEXT: Assessment of cancer-related fatigue is currently based on patient-reported outcomes. We asked whether objective assessments such as muscle strength and nutritional markers can be used as surrogate measures of cancer-related fatigue. OBJECTIVE: We examined the association among three fatigue scales, muscle strength, and nutritional markers in patients with advanced cancer. METHODS: In this prospective study, we enrolled hospitalized cancer patients who had been seen in palliative care consultation at MD Anderson Cancer Center...
January 4, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28048355/th-cd-207a-04-optimized-respiratory-gating-for-abnormal-breathers-in-pancreatic-sbrt
#19
W Campbell, M Miften, T Schefter, K Goodman, B Jones
PURPOSE: Pancreatic SBRT is uniquely challenging due to both the erratic/unstable motion of the pancreas and the close proximity of the radiosensitive small bowel. Respiratory gating can mitigate this effect, but the irregularity of motion severely affects traditional phase-based gating. The purpose of this study was to analyze real-time motion data of pancreatic tumors to optimize the efficacy and accuracy of respiratory gating, with the overall goal of enabling dose escalated pancreatic SBRT...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042079/association-between-multi-frequency-phase-angle-and-survival-in-patients-with-advanced-cancer
#20
David Hui, Rony Dev, Lindsay Pimental, Minjeong Park, Maria Agustina Cerana, Diane Liu, Eduardo Bruera
CONTEXT: The ability to predict survival accurately has implications in clinical decision making. OBJECTIVE: We determined the association of phase angle obtained from multi-frequency bioelectric impedance analysis (MF-BIA) with overall survival in patients with advanced cancer. METHODS: We included consecutive patients with advanced cancer who had an outpatient palliative care consultation. MF-BIA assessed phase angle at three different frequencies (5 kHz/50 kHz/250 kHz) on each hemibody (right/left)...
December 29, 2016: Journal of Pain and Symptom Management
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