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https://www.readbyqxmd.com/read/28340004/prevalence-of-malnutrition-and-validation-of-bioelectrical-impedance-analysis-for-the-assessment-of-body-composition-in-patients-with-systemic-sclerosis
#1
Moon J Spanjer, Irene E M Bultink, Marian A E de van der Schueren, Alexandre E Voskuyl
Objectives.: The aims were to assess the prevalence of malnutrition and to validate bioelectrical impedance analysis (BIA) against whole-body DXA for the assessment of body composition in patients with SSc. Methods.: Malnutrition was defined as BMI <18.5 kg/m 2 or unintentional weight loss >10% in combination with a fat-free mass index (FFMI) <15 kg/m 2 for women or <17 kg/m 2 for men or BMI <20.0 kg/m 2 (age <70 years) or <22 kg/m 2 (age >70 years)...
March 7, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339635/the-impact-of-zonisamide-on-the-development-and-course-of-alcohol-dependence-in-rabbits-a-pharmaco-eeg-study
#2
Agata Krupa-Burtnik, Ewa Zwierzynska, Anna Kordala, Boguslawa Pietrzak
Aims: Zonisamide is a new anti-epileptic drug whose mechanism of action is associated with neurotransmission systems also involved in the pathogenesis of addiction. Recently, the role of memory processes and the hippocampus (Hp) is underlined in dependence. In our previous study, we determined that zonisamide decreases changes in hippocampal bioelectric activity induced by a single dose of ethanol. Methods: This study uses a pharmaco-EEG method to examine the impact of zonisamide on the development and course of alcohol dependence in rabbits...
February 17, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28338874/does-fetal-growth-restriction-cause-later-obesity-pitfalls-in-analyzing-causal-mediators-as-confounders
#3
Michael S Kramer, Xun Zhang, Mourad Dahhou, Seungmi Yang, Richard M Martin, Emily Oken, Robert W Platt
Recent studies finding that small-for-gestational-age (SGA) birth is associated with increased adiposity in childhood and adulthood have been based on analyses "adjusting" for height, weight, or body mass index (BMI; weight (kg)/height (m)2) measured concurrently with the adiposity measurement. To assess the potential for bias due to overadjustment for a causal mediator, we compared 2 approaches to analyzing the association between SGA birth and adiposity outcomes (skinfold thicknesses and bioelectrical impedance measurement of body fat) at age 11...
March 3, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28335325/nanoscale-electric-characteristics-and-oriented-assembly-of-halobacterium-salinarum-membrane-revealed-by-electric-force-microscopy
#4
Denghua Li, Yibing Wang, Huiwen Du, Shiwei Xu, Zhemin Li, Yanlian Yang, Chen Wang
Purple membranes (PM) of the bacteria Halobacterium salinarum are a unique natural membrane where bacteriorhodopsin (BR) can convert photon energy and pump protons. Elucidating the electronic properties of biomembranes is critical for revealing biological mechanisms and developing new devices. We report here the electric properties of PMs studied by using multi-functional electric force microscopy (EFM) at the nanoscale. The topography, surface potential, and dielectric capacity of PMs were imaged and quantitatively measured in parallel...
November 2, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28327564/quantification-of-whole-body-and-segmental-skeletal-muscle-mass-using-phase-sensitive-8-electrode-medical-bioelectrical-impedance-devices
#5
A Bosy-Westphal, B Jensen, W Braun, M Pourhassan, D Gallagher, M J Müller
BACKGROUND/OBJECTIVES: Bioelectrical impedance analysis (BIA) provides noninvasive measures of skeletal muscle mass (SMM) and visceral adipose tissue (VAT). This study (i) analyzes the impact of conventional wrist-ankle vs segmental technology and standing vs supine position on BIA equations and (ii) compares BIA validation against magnetic resonance imaging (MRI) and dual X-ray absorptiometry (DXA). SUBJECTS/METHODS: One hundred and thirty-six healthy Caucasian adults (70 men, 66 women; age 40±12 years) were measured by a phase-sensitive multifrequency BIA (seca medical body composition analyzers 515 and 525)...
March 22, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28327461/muscle-strength-is-impaired-in-men-but-not-in-women-living-with-hiv-taking-antiretroviral-therapy
#6
Vitor Hf Oliveira, Susana L Wiechmann, Argéria Ms Narciso, Allison R Webel, Rafael Deminice
BACKGROUND: There is evidence that HIV Antiretroviral Therapy adverse effects may be sex-dependent, but data examing these sex differences in muscle strength is scarce. Our aim was to compare dynamic and isokinetic parameters of muscle strength between HIV-infected men and women to HIV-uninfected subjects. METHODS: In this cross-sectional study, muscle strength was evaluated in 44 HIV-infected (20 men, 24 women) and 25 age-, race- and body mass index-matched HIV-uninfected subjects (11 men, 14 women)...
March 22, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28327109/a-cross-sectional-study-on-sarcopenia-using-different-methods-reference-values-for-healthy-saudi-young-men
#7
Shaea A Alkahtani
BACKGROUND: The aim of this study was to determine reference values for sarcopenia indices using different methods in healthy Saudi young men. METHODS: Participants included 232 Saudi men aged between 20 and 35 years. The study measured anthropometric indices, blood pressure, hand grip strength, and lean muscle mass using dual-energy X-ray absorptiometry (DXA), and bioelectrical impedance analysis (BIA) was performed using Inbody 770 and Tanita 980 devices. RESULTS: Using DXA, the mean value of appendicular lean mass divided by the height squared (ALM/ht(2)) was found to be 8...
March 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28323572/bilateral-changes-in-deep-tissue-environment-after-manual-lymphatic-drainage-in-patients-with-breast-cancer-treatment-related-lymphedema
#8
Paula M C Donahue, Rachelle Crescenzi, Allison O Scott, Vaughn Braxton, Aditi Desai, Seth A Smith, John Jordi, Ingrid M Meszoely, Ana M Grau, Rondi M Kauffmann, Raeshell S Sweeting, Kandace Spotanski, Sheila H Ridner, Manus J Donahue
BACKGROUND: Breast cancer treatment-related lymphedema (BCRL) arises from a mechanical insufficiency following cancer therapies. Early BCRL detection and personalized intervention require an improved understanding of the physiological processes that initiate lymphatic impairment. Here, internal magnetic resonance imaging (MRI) measures of the tissue microenvironment were paired with clinical measures of tissue structure to test fundamental hypotheses regarding structural tissue and muscle changes after the commonly used therapeutic intervention of manual lymphatic drainage (MLD)...
March 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28321276/phase-angle-obtained-by-bioelectrical-impedance-analysis-independently-predicts-mortality-in-patients-with-cirrhosis
#9
Giliane Belarmino, Maria Cristina Gonzalez, Raquel S Torrinhas, Priscila Sala, Wellington Andraus, Luiz Augusto Carneiro D'Albuquerque, Rosa Maria R Pereira, Valéria F Caparbo, Graziela R Ravacci, Lucas Damiani, Steven B Heymsfield, Dan L Waitzberg
AIM: To evaluate the prognostic value of the phase angle (PA) obtained from bioelectrical impedance analysis (BIA) for mortality prediction in patients with cirrhosis. METHODS: In total, 134 male cirrhotic patients prospectively completed clinical evaluations and nutritional assessment by BIA to obtain PAs during a 36-mo follow-up period. Mortality risk was analyzed by applying the PA cutoff point recently proposed as a malnutrition marker (PA ≤ 4.9°) in Kaplan-Meier curves and multivariate Cox regression models...
March 8, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28319679/evaluation-of-body-composition-with-bioimpedence-a-comparison-between-athletic-and-non-athletic-children
#10
Domenico Meleleo, Nicola Bartolomeo, Liliana Cassano, Alessandro Nitti, Giovanna Susca, Giuseppina Mastrototaro, Umberto Armenise, Annapaola Zito, Fiorella Devito, Pietro Scicchitano, Marco Matteo Ciccone
PURPOSE: Conventional Bioelectrical Impedance Analysis (BIA) or Bioelectrical Impedance Vector Analysis (BIVA) can provide direct evaluations of body composition. The purpose of this study was to evaluate lean and fat mass (FM), and hydration of children involved in daily competitive sports. METHODS: 190 non-athletic [8.2-10.5 years] and 29 competitive children [8.0-10.5 years] were enrolled. They were evaluated: at baseline (t0), 6 months (t1) and one year (t2)...
March 20, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28303380/nutritional-and-functional-factors-as-prognostic-of-surgical-cancer-patients
#11
Jéssica Härter, Silvana Paiva Orlandi, Maria Cristina Gonzalez
PURPOSE: We evaluated phase angle, sarcopenia, and handgrip strength as prognostic factors of postoperative morbimortality in patients with cancer. METHODOLOGY: We conducted a prospective study with 60 oncology patients admitted for elective surgery between November 2015 and May 2016. We calculated the standardized phase angle (SPA) and the skeletal mass index of the subjects based on their bioelectrical impedance tests. Handgrip strength (HGS) was measured using a hydraulic dynamometer...
March 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28303338/blood-glucose-kinetics-and-physiological-changes-in-a-type-1-diabetic-finisher-of-the-ultraman-triathlon-a-case-study
#12
Christopher W Bach, Daniel A Baur, William S Hyder, Michael J Ormsbee
PURPOSE: To investigate the blood glucose kinetics and physiological effects experienced by a type 1 diabetic (T1D) finisher of a 3-day, multi-stage ultra endurance triathlon consisting of a 10 km swim and 144.8 km bike (stage 1), a 275.4 km bike (stage 2), and an 84.4 km run (stage 3). METHODS: The athlete self-monitored blood glucose (SMBG) levels via fingerstick blood draw and hand-held glucometer. Researchers evaluated blood glucose kinetics via a continuous glucose monitoring device...
March 16, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28298284/changes-in-body-weight-and-composition-are-associated-with-changes-in-left-ventricular-geometry-and-function-in-the-general-population-ship-study-of-health-in-pomerania
#13
Marcello Ricardo Paulista Markus, Nicole Werner, Sabine Schipf, Ulrike Siewert-Markus, Martin Bahls, Sebastian Edgar Baumeister, Henry Völzke, Stephan Burkhard Felix, Till Ittermann, Marcus Dörr
BACKGROUND: The different effects of total body weight (TBW), fat-free mass (FFM), and fat mass (FM) on left ventricular (LV) geometry and function are complex. We investigated the associations of changes over time in TBW, FM, and FFM with changes in LV geometry and function. METHODS AND RESULTS: We analyzed data from 1189 subjects (694 women), aged 44 to 86 years, from the baseline and the 5-year follow-up examination of the population-based SHIP (Study of Health in Pomerania)...
March 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28296647/intra-and-inter-rater-reliability-of-lower-leg-waterplethysmography-bioelectrical-impedance-and-muscle-twitch-force-for-the-use-in-standing-work-evaluation
#14
Rudolf Wall, Oliwia Lips, Robert Seibt, Monika Rieger, Benjamin Steinhilber
OBJECTIVES: Prolonged standing is associated with multiple risk factors for musculoskeletal and venous disorders. Basic understanding of prolonged standing physiology is lacking. We therefore plan to investigate the influence of multiple hours standing on lower limb oedema measured by waterplethysmography (WP) and bioelectrical impedance (BI) and lower leg musle fatigue using muscle twitch force (MTF). In order to interpret our results, test-retest and inter-rater reliability of these measurement methods was evaluated first...
March 15, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28295857/single-frequency-and-multi-frequency-bioimpedance-analysis-what-is-the-difference
#15
Serkan Feyyaz Yalın, Sibel Gulcicek, Suna Avci, Banu Erkalma Senates, Mehmet Riza Altıparmak, Sinan Trabulus, Selma Alagoz, Hakan Yavuzer, Alper Doventas, Nurhan Seyahi
AIM: Bioelectrical impedance analysis is a promising method in determining the body compartments in hemodialysis patients. In this study, we aimed to investigate the agreement between two widely used methods: the single-frequency and multi-frequency bioelectrical impedance analyses. METHODS: Maintenance hemodialysis patients were enrolled in the study. Single-frequency and multi-frequency bioelectrical impedance analyses were performed consecutively before hemodialysis...
March 10, 2017: Nephrology
https://www.readbyqxmd.com/read/28292533/assessment-of-hydration-status-using-bioelectrical-impedance-vector-analysis-in-critical-patients-with-acute-kidney-injury
#16
Ana Cláudia da Rosa Hise, Maria Cristina Gonzalez
BACKGROUND & AIMS: The state of hyperhydration in critically ill patients with acute kidney injury (AKI) is associated with increased mortality. Bioelectrical impedance vector analysis (BIVA) appears to be a viable method to access the fluid status of critical patients but has never been evaluated in critical patients with AKI. The objective of this study is to evaluate the hydration status measured using BIVA in critical patients under intensive care at the time of AKI diagnosis and to correlate this measurement with mortality...
February 21, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28291333/metallic-state-fes-anchored-fe-fe3o4-n-doped-graphitic-carbon-with-porous-spongelike-structure-as-durable-catalysts-for-enhancing-bioelectricity-generation
#17
Xin Xu, Ying Dai, Jia Yu, Liang Hao, Yaqiang Duan, Ye Sun, Yanhong Zhang, Yuhui Lin, Jinlong Zou
The critical issues in practical application of microbial fuel cells (MFCs) for wastewater treatment are the high cost and poor activity and durability of precious metal catalysts. To alleviate the activity loss and kinetic barriers for oxygen reduction reaction (ORR) on cathode, (Fe)/Fe3O4/FeS/N-doped graphitic carbon ((Fe)/Fe3O4/FeS/NGC) is prepared as ORR catalyst through a one-step method using waste pomelo skins as carbon source. Various characterization techniques and electrochemical analyses are conducted to illustrate the correlation between structural characteristics and catalytic activity...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28287631/negative-association-between-acrylamide-exposure-and-body-composition-in-adults-nhanes-2003-2004
#18
P-L Chu, L-Y Lin, P-C Chen, T-C Su, C-Y Lin
BACKGROUND/OBJECTIVES: Acrylamide is present in mainstream cigarette smoke and in some food prepared at high temperature. Animal studies have shown that acrylamide exposure reduces body weight. Prenatal exposure to acrylamide also has been linked to reduced birth weight in human. Whether acrylamide exposure is associated with altered body compositions in adults is not clear. SUBJECTS/METHODS: We selected 3623 subjects (aged ⩾20 years) from a National Health and Nutrition Examination Survey (NHANES) in 2003-2004 to determine the relationship among hemoglobin adducts of acrylamide (HbAA), hemoglobin adducts of glycidamide (HbGA) and body composition (body measures, bioelectrical impedance analysis (BIA), dual energy x-ray absorptiometry (DXA))...
March 13, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28287493/characterization-of-textile-insulated-capacitive-biosensors
#19
Charn Loong Ng, Mamun Bin Ibne Reaz
Capacitive biosensors are an emerging technology revolutionizing wearable sensing systems and personal healthcare devices. They are capable of continuously measuring bioelectrical signals from the human body while utilizing textiles as an insulator. Different textile types have their own unique properties that alter skin-electrode capacitance and the performance of capacitive biosensors. This paper aims to identify the best textile insulator to be used with capacitive biosensors by analysing the characteristics of 6 types of common textile materials (cotton, linen, rayon, nylon, polyester, and PVC-textile) while evaluating their impact on the performance of a capacitive biosensor...
March 12, 2017: Sensors
https://www.readbyqxmd.com/read/28287419/bimolecular-rate-constants-for-fad-dependent-glucose-dehydrogenase-from-aspergillus-terreus-and-organic-electron-acceptors
#20
Nozomu Tsuruoka, Takuya Sadakane, Rika Hayashi, Seiya Tsujimura
The flavin adenine dinucleotide-dependent glucose dehydrogenase (FAD-GDH) from Aspergillus species require suitable redox mediators to transfer electrons from the enzyme to the electrode surface for the application of bioelectrical devices. Although several mediators for FAD-GDH are already in use, they are still far from optimum in view of potential, kinetics, sustainability, and cost-effectiveness. Herein, we investigated the efficiency of various phenothiazines and quinones in the electrochemical oxidation of FAD-GDH from Aspergillus terreus...
March 10, 2017: International Journal of Molecular Sciences
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