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Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Javier Martínez-Torres, Katherine González-Ruíz, Emilio González-Jiménez, Jacqueline Schmidt-RioValle, Antonio Garcia-Hermoso
This study aimed to determine thresholds for percentage of body fat (BF%) corresponding to the cut-off values for overweight/obesity as recommended by the International Obesity Task Force (IOTF), using two bioelectrical impedance analyzers (BIA), and described the likelihood of increased cardiometabolic risk in our cohort defined by the IOTF and BF% status. Participants included 1165 children and adolescents (54.9% girls) from Bogotá (Colombia). Body mass index (BMI) was calculated from height and weight...
October 4, 2016: Nutrients
Dong Guo, Jianfeng Gong, Lei Cao, Yao Wei, Zhen Guo, Weiming Zhu
Aim. The study aimed to investigate the impact of laparoscopic surgery and open surgery on postoperative edema in Crohn's disease. Methods. Patients who required enterectomy were divided into open group (Group O) and laparoscopic group (Group L). Edema was measured using bioelectrical impedance analysis preoperatively (PRE) and on postoperative day 3 (POD3) and postoperative day 5 (POD5). The postoperative edema was divided into slight edema and edema by an edema index, defined as the ratio of total extracellular water to total body water...
2016: Gastroenterology Research and Practice
Hsueh-Kuan Lu, Li-Ming Chiang, Yu-Yawn Chen, Chih-Lin Chuang, Kuen-Tsann Chen, Gregory B Dwyer, Ying-Lin Hsu, Chun-Hao Chen, Kuen-Chang Hsieh
This study aimed to establish a hand-to-hand (HH) model for bioelectrical impedance analysis (BIA) fat free mass (FFM) estimation by comparing with a standing position hand-to-foot (HF) BIA model and dual energy X-ray absorptiometry (DXA); we also verified the reliability of the newly developed model. A total of 704 healthy Chinese individuals (403 men and 301 women) participated. FFM (FFMDXA) reference variables were measured using DXA and segmental BIA. Further, regression analysis, Bland-Altman plots, and cross-validation (2/3 participants as the modeling group, 1/3 as the validation group; three turns were repeated for validation grouping) were conducted to compare tests of agreement with FFMDXA reference variables...
October 21, 2016: Nutrients
Saeed Rafizadeh-Tafti, Mohammad Hossein Haqiqatkhah, Mehrdad Saviz, Mohsen Janmaleki, Reza Faraji Dana, Somayeh Zanganeh, Mohammad Abdolahad
A highly sensitive impedimetric bio-chip based on vertically aligned multiwall carbon nanotubes (VAMWCNTs), was applied in direct interaction with lung cancer cells. Our tool provided both inducing and monitoring the bioelectrical changes in the cells initiated by electromagnetic (EM) wave stimulation. EM wave of 940MHz frequency with different intensities was used. Here, wave ablation might accumulate electrical charge on the tips of nanotubes penetrated into cell's membrane. The charge might induce ionic exchanges into the cell and cause alterations in electrical states of the membrane...
January 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
Aya Murakami, Daisuke Kobayashi, Toshio Kubota, Niina Zukeyama, Haru Mukae, Norihiro Furusyo, Mosaburo Kainuma, Takao Shimazoe
BACKGROUND: In Japanese Kampo medical practice, suidoku (fluid disturbance) is one of the most important concepts for selecting the proper medication. Suidoku is an excessive or uneven distribution of fluid that is indicated by splashing sounds and pitting edema. However, few objective reports about suidoku have been published. Bioelectrical impedance analysis (BIA) uses resistance values obtained from weak electrical currents to estimate body composition, including intracellular and extracellular water and muscle and fat mass...
October 22, 2016: BMC Complementary and Alternative Medicine
Hanna F Skjåkødegård, Yngvild S Danielsen, Mette Morken, Sara-Rebekka F Linde, Rachel P Kolko, Katherine N Balantekin, Denise E Wilfley, Pétur B Júlíusson
BACKGROUND: The purpose of the FABO-study is to evaluate the effect of family-based behavioral social facilitation treatment (FBSFT), designed to target children's family and social support networks to enhance weight loss outcomes, compared to the standard treatment (treatment as usual, TAU) given to children and adolescents with obesity in a routine clinical practice. METHODS: Randomized controlled trial (RCT), in which families (n = 120) are recruited from the children and adolescents (ages 6-18 years) referred to the Obesity Outpatient Clinic (OOC), Haukeland University Hospital, Norway...
October 21, 2016: BMC Public Health
Te-Chih Wong, Hsiu-Yueh Su, Yu-Tong Chen, Pei-Yu Wu, Hsi-Hsien Chen, Tso-Hsiao Chen, Yung-Ho Hsu, Shwu-Huey Yang
Recent studies have indicated that the ratio of C-reactive protein to albumin (CRP-Alb ratio) is associated with clinical outcomes in patients with disease. We examined the predictive value of this ratio in patients undergoing hemodialysis (HD). In this cross-sectional study, 91 eligible adult HD patients were analyzed, and the correlation between the CRP-Alb ratio and skeletal muscle mass normalized for body weight (SMM/wt; estimated using a bioelectrical impedance analyzer) was investigated. The mean age of the study participants was 54...
2016: PloS One
Dan Mo, Peishan Hsieh, Hongrong Yu, Lining Zhou, Jichun Gong, Lin Xu, Peng Liu, Gang Chen, Zhao Chen, Qiongying Deng
OBJECTIVE: To investigate the ethnic differences in osteoporosis (OP) and body composition (BC) and their relationship in the Maonan, Mulam, Hmong, and Yao minorities in China. DESIGN: A total of 860 Maonan, Mulam, Hmong, and Yao women were included in this cross-sectional study. Demographic, health history, and lifestyle information was collected using questionnaires. BC was measured through bioelectrical impedance analysis, and bone mineral density (BMD) was assessed via calcaneal quantitative ultrasound...
October 21, 2016: Ethnicity & Health
Fabián Vásquez, Gabriela Salazar, Erik Díaz, Lydia Lera, Alyerina Anziani, Raquel Burrows
INTRODUCTION: Determine body composition changes in adiposity can assess an individual. OBJECTIVE: The objective of this study was to evaluate total body fat percentage based on two and four compartment models in obese Chilean school children, adjusting for differences in sex and puberty status. METHODS: Sixty-one obese school children (33 boys and 28 girls) between 8 and 13 years of age were evaluated. Two compartment measurements of body fat percentage considered isotope dilution, plethysmography, radiographic absorptiometry and bioelectrical impedance; using the four compartment model as a benchmark...
September 20, 2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Francesca de Blasio, Francesco de Blasio, Giulia Miracco Berlingieri, Andrea Bianco, Marta La Greca, Frits M E Franssen, Luca Scalfi
BACKGROUND: Multifrequency bioelectrical impedance analysis (MF-BIA) is a technique that measures body impedance (Z) at different frequencies (5, 10, 50, 100, and 250 kHz). Body composition may be estimated using empirical equations, which include BIA variables or, alternatively, raw BIA data may provide direct information on water distribution and muscle quality. OBJECTIVES: To compare raw MF-BIA data between COPD patients and controls and to study their relationship with respiratory and functional parameters in COPD patients...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Diego Gomez-Arbelaez, Diego Bellido, Ana I Castro, Lucia Ordoñez-Mayan, Jose Carreira, Cristobal Galban, Miguel A Martinez-Olmos, Ana B Crujeiras, Ignacio Sajoux, Felipe F Casanueva
CONTEXT: A common concern when using low-calorie diets as a treatment for obesity is the reduction in fat-free mass, mostly muscular mass that occurs together with the fat mass loss, and the best methodologies to evaluate body composition changes. OBJECTIVE: To evaluate the very low-calorie-ketogenic (VLCK) diet-induced changes in body composition of obese patients and to compare three different methodologies employed to evaluate that changes. DESIGN: Twenty obese patients followed a VLCK diet for 4 months...
October 18, 2016: Journal of Clinical Endocrinology and Metabolism
Soumyarwit Manna, James J Augsburger, Zelia M Correa, Marwan F Al-Rjoub, Marepalli B Rao, Rupak K Banerjee
PURPOSE: The purpose of this study is to noninvasively evaluate the safety and toxicity of a chitosan (CS) and polylactic acid (PLA)-based sustained-release methotrexate (MTX) intravitreal microimplant in normal rabbit eyes using electroretinography (ERG). METHODS: PLA-coated CS-based microimplants containing 400 μg of MTX and placebo microimplants (without drug) were surgically implanted in the vitreous of the right and the left eyes, respectively, in each of the 8 New Zealand rabbits using minimally invasive technique...
October 18, 2016: Journal of Ocular Pharmacology and Therapeutics
Vaidas Vicka, Laurynas Rimsevicius, Alvita Gincaite, Diana Sukackiene, Marius Miglinas
OBJECTIVE: Water balance and blood pressure (BP) alterations are strongly associated in haemodialysis (HD) patients. Aim of this study was to determine whether bioelectrical impedance analysis (BIA) parameters can be used as predictors of intradialytic hypotension (IDH). DESIGN AND METHOD: We conducted an observational study of chronic HD patients. BIA was measured before the HD procedure using InBody S10 (Biospace, Seoul, Korea) body composition analyzer. Intracellular water (ICW), extracellular water (ECW), total body water (TBW), ECW/TBW ratio and phase angle (PhA) were selected as markers of hydration state and thus possible predictors of IDH...
September 2016: Journal of Hypertension
Yoon Suk Jung, Nam Hee Kim, Seungho Ryu, Jung Ho Park, Dong Il Park, Chong Il Sohn
GOALS: We aimed to ascertain whether low relative muscle mass is associated with colorectal neoplasm (CRN) risk. BACKGROUND: CRN and sarcopenia have common pathophysiological mechanisms such as insulin resistance, chronic inflammation, and physical inactivity. However, the direct relationship between the 2 diseases has not been investigated. STUDY: A cross-sectional study was performed on 81,885 examinees who underwent colonoscopy as part of a health check-up...
October 4, 2016: Journal of Clinical Gastroenterology
Seda Guzel Aydin, Turgay Kaya, Hasan Guler
This paper illustrates the wavelet-based feature extraction for emotion assessment using electroencephalogram (EEG) signal through graphical coding design. Two-dimensional (valence-arousal) emotion model was studied. Different emotions (happy, joy, melancholy, and disgust) were studied for assessment. These emotions were stimulated by video clips. EEG signals obtained from four subjects were decomposed into five frequency bands (gamma, beta, alpha, theta, and delta) using "db5" wavelet function. Relative features were calculated to obtain further information...
June 2016: Brain Informatics
Cheng Sun, Alysa Pomer, Kelsey N Dancause, Chim W Chan, Kathryn M Olszowy, Harold Silverman, Gwang Lee, Len Tarivonda, George Taleo, Ralph Regenvanu, Akira Kaneko, Charles A Weitz, Ralph M Garruto, J Koji Lum
OBJECTIVE: The Republic of Vanuatu, like many developing nations, is undergoing a rapid health transition. Our previous study identified several behavioral risk factors for the rising prevalence of obesity. Unexpectedly, daily time spent using television and radio was revealed as a protective factor for obesity in 2007. In this study, we sought to explore associations between ownership of consumer electronics (CE) and measures of adiposity in Vanuatu in 2011. METHODS: We surveyed 873 adults from five islands varying in level of economic development...
October 15, 2016: American Journal of Human Biology: the Official Journal of the Human Biology Council
Ma Paz Redondo-Del-Río, Ma Alicia Camina-Martín, Laura Moya-Gago, Sandra de-la-Cruz-Marcos, Vincenzo Malafarina, Beatriz de-Mateo-Silleras
OBJECTIVE: To compare body composition as assessed by conventional and vector bioelectrical impedance analysis according to the nutritional cataloging using body mass index (BMI) in a group of institutionalized elderly. METHODS: Cross-sectional study in 38 institutionalized elderly. Body composition was estimated by bioimpedance analysis. Differences in body composition were analyzed using t-test and ANOVA, or their corresponding nonparametric tests. Statistical significance was set at p<0...
October 10, 2016: Experimental Gerontology
Javier Cervera, Salvador Meseguer, Salvador Mafe
The single cell-centred approach emphasises ion channels as specific proteins that determine individual properties, disregarding their contribution to multicellular outcomes. We simulate the interplay between genetic and bioelectrical signals in non-excitable cells from the local single-cell level to the long range multicellular ensemble. The single-cell genetic regulation is based on mean-field kinetic equations involving the mRNA and protein concentrations. The transcription rate factor is assumed to depend on the absolute value of the cell potential, which is dictated by the voltage-gated cell ion channels and the intercellular gap junctions...
October 12, 2016: Scientific Reports
Anna Yamanouchi, Yoshihiro Yoshimura, Yumi Matsumoto, Seungwon Jeong
Sarcopenia is known to increase the risk of adverse outcomes, including disability, loss of independence, hospitalization, longer length of hospital stay, and mortality, but there is little data about the prevalence of sarcopenia and the factors associated with increased physical dependency and cognitive decline among older patients hospitalized in a long-term care (LTC) ward in Japan. A cross-sectional study was conducted in 79 consecutive patients (34 men, 45 women) with a median age of 81 y hospitalized in an LTC hospital...
2016: Journal of Nutritional Science and Vitaminology
Aleš Gába, Jan Dygrýn, Josef Mitáš, Lukáš Jakubec, Karel Frömel
There is no general consensus regarding which accelerometer cut-off point (CoP) is most acceptable to estimate the time spent in moderate-to-vigorous physical activity (MVPA) in children and choice of an appropriate CoP primarily remains a subjective decision. Therefore, this study aimed to analyze the influence of CoP selection on the mean MVPA and to define the optimal thresholds of MVPA derived from different accelerometer CoPs to avoid overweight/obesity and adiposity in children aged 7 to 12 years. Three hundred six children participated...
2016: PloS One
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