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Bioimpedance analysis

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https://www.readbyqxmd.com/read/29344931/relationship-between-body-mass-lean-mass-fat-mass-and-limb-bone-cross-sectional-geometry-implications-for-estimating-body-mass-and-physique-from-the-skeleton
#1
Emma Pomeroy, Alison Macintosh, Jonathan C K Wells, Tim J Cole, Jay T Stock
OBJECTIVES: Estimating body mass from skeletal dimensions is widely practiced, but methods for estimating its components (lean and fat mass) are poorly developed. The ability to estimate these characteristics would offer new insights into the evolution of body composition and its variation relative to past and present health. This study investigates the potential of long bone cross-sectional properties as predictors of body, lean, and fat mass. MATERIALS AND METHODS: Humerus, femur and tibia midshaft cross-sectional properties were measured by peripheral quantitative computed tomography in sample of young adult women (n = 105) characterized by a range of activity levels...
January 18, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29335481/bioimpedimetric-analysis-in-conjunction-with-growth-dynamics-to-differentiate-aggressiveness-of-cancer-cells
#2
Aditya Parekh, Debanjan Das, Subhayan Das, Santanu Dhara, Karabi Biswas, Mahitosh Mandal, Soumen Das
Determination of cancer aggressiveness is mainly assessed in tissues by looking at the grade of cancer. There is a lack of specific method to determine aggressiveness of cancer cells in vitro. In our present work, we have proposed a bio-impedance based non-invasive method to differentiate aggressive property of two breast cancer cell lines. Real-time impedance analysis of MCF-7 (less aggressive) and MDA-MB-231 cells (more aggressive) demonstrated unique growth pattern. Detailed slope-analysis of impedance curves at different growth phases showed that MDA-MB-231 had higher proliferation rate and intrinsic resistance to cell death, when allowed to grow in nutrient and space limiting conditions...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330426/glucose-independent-segmental-phase-angles-from-multi-frequency-bioimpedance-analysis-to-discriminate-diabetes-mellitus
#3
Min-Ho Jun, Soochan Kim, Boncho Ku, JungHee Cho, Kahye Kim, Ho-Ryong Yoo, Jaeuk U Kim
We investigated segmental phase angles (PAs) in the four limbs using a multi-frequency bioimpedance analysis (MF-BIA) technique for noninvasively diagnosing diabetes mellitus. We conducted a meal tolerance test (MTT) for 45 diabetic and 45 control subjects stratified by age, sex and body mass index (BMI). HbA1c and the waist-to-hip-circumference ratio (WHR) were measured before meal intake, and we measured the glucose levels and MF-BIA PAs 5 times for 2 hours after meal intake. We employed a t-test to examine the statistical significance and the area under the curve (AUC) of the receiver operating characteristics (ROC) to test the classification accuracy using segmental PAs at 5, 50, and 250 kHz...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319767/variables-associated-with-lung-congestion-as-assessed-by-chest-ultrasound-in-diabetics-undergoing-hemodialysis
#4
Paulo Roberto Santos, José Antonio de Lima Neto, Raimundo Aragão Aires Carneiro, Antônio Igor Taumaturgo Dias Soares, Wanessa Ribeiro de Oliveira, Juliana Oliveira Figueiredo, Narcélio Menezes Silva Filho, Thais Oliveira Silva
INTRODUCTION: Ultrasound is an emerging method for assessing lung congestion but is still seldom used. Lung congestion is an important risk of cardiac events and death in end-stage renal disease (ESRD) patients on hemodialysis (HD). OBJECTIVE: We investigated possible variables associated with lung congestion among diabetics with ESRD on HD, using chest ultrasound to detect extracellular lung water. METHODS: We studied 73 patients with diabetes as the primary cause of ESRD, undergoing regular HD...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29314721/peritoneal-protein-losses-depend-on-more-than-just-peritoneal-dialysis-modality-and-peritoneal-membrane-transporter-status
#5
Suree Yoowannakul, Lauren S Harris, Andrew Davenport
Peritoneal protein clearance (PPCl) depends upon vascular supply and size selective permeability. Some previous reports suggested PPCl can distinguish fast peritoneal membrane transport due to local or systemic inflammation. However, as studies have been discordant, we wished to determine factors associated with an increased PPCl. Consecutive patients starting peritoneal dialysis (PD) who were peritonitis-free were studied. Data included a baseline peritoneal equilibration test (PET), measurement of dialysis adequacy, 24-h dialysate PPCl and body composition measured by multifrequency bioimpedance...
January 4, 2018: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/29301558/leucine-and-ace-inhibitors-as-therapies-for-sarcopenia-lace-trial-study-protocol-for-a-randomised-controlled-trial
#6
Margaret M Band, Deepa Sumukadas, Allan D Struthers, Alison Avenell, Peter T Donnan, Paul R Kemp, Karen T Smith, Cheryl L Hume, Adrian Hapca, Miles D Witham
BACKGROUND: Sarcopenia (the age-related loss of muscle mass and function) is a major contributor to loss of mobility, falls, loss of independence, morbidity and mortality in older people. Although resistance training is effective in preventing and reversing sarcopenia, many older people are sedentary and either cannot or do not want to exercise. This trial examines the efficacy of supplementation with the amino acid leucine and/or angiotensin converting enzyme inhibition to potentially improve muscle mass and function in people with sarcopenia...
January 4, 2018: Trials
https://www.readbyqxmd.com/read/29284797/bedside-quantification-of-fat-free-mass-in-acute-spinal-cord-injury-using-bioelectrical-impedance-analysis-a-psychometric-study
#7
Maya G Panisset, Kate Desneves, Leigh C Ward, Jillian Rafferty, Helena Rodi, Geoff Roff, Doa El-Ansary, Mary P Galea
STUDY DESIGN: Psychometric. OBJECTIVES: Assess the validity of bioimpedance-based measures of fat-free mass (FFM) in acute SCI and of current definitions of obesity based on body mass index (BMI). SETTING: Australia. METHODS: All admissions within eight weeks of a new traumatic SCI were screened. 29% were eligible. 71% of those consented. Twenty participants (18 male) completed deuterium dilution (DD) and bioimpedance-based measurements of FFM...
December 28, 2017: Spinal Cord
https://www.readbyqxmd.com/read/29280647/-relation-of-variant-rs180077-of-gen-cholesterol-ester-transfer-protein-variant-with-fat-mass-hdl-cholesterol-in-obese-subjects-with-diabetes-mellitus-type-2
#8
Daniel Antonio De Luis, Olatz Izaola, David Primo, Susana García Calvo, Emilia Gómez Hoyos, Juan José López Gómez, Ana Ortola, Cristina Serrano, Esther Delgado, Beatriz Torres Torres
BACKGROUND: There is few evidence of cholesterol ester transfer protein (CETP) in subjects with obesity and diabetes mellitus. OBJECTIVES: We examined the association of the polymorphism (rs1800777) of CETP gene on anthropometric parameters, lipid profile and adipokines in subjects with obesity and diabetes mellitus type 2. MATERIAL AND METHODS: A population of 229 obese subjects with diabetes mellitus type 2 was enrolled. An electrical bioimpedance, blood pressure, dietary intake, exercise and biochemical analyses were recorded...
November 14, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29279059/systemic-inflammation-mediates-the-detrimental-effects-of-obesity-on-asthma-control
#9
Xin Zhang, Jing Zheng, Li Zhang, Ying Liu, Gai Ping Chen, Hong Ping Zhang, Lei Wang, De Ying Kang, Lisa G Wood, Gang Wang
BACKGROUND: Obesity negatively impacts asthma control, but the inflammatory mechanisms are poorly understood. OBJECTIVE: To explore which systemic inflammatory mediators mediate the effects of obesity on asthma control. METHODS: The subjects with stable asthma (n = 108) underwent assessment of clinical characteristics, which included using The Asthma Control Questionnaire (ACQ)-6. Obesity was defined as a body mass index (BMI) of ≥30 kg/m2, overweight was defined as BMI between 25 to 29...
January 2, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29274919/use-of-lung-ultrasound-for-the-assessment-of-volume-status-in-ckd
#10
REVIEW
Adrian Covic, Dimitrie Siriopol, Luminita Voroneanu
Adequate assessment of fluid status is an imperative objective in the management of all types of patients in cardiology, intensive care, and especially nephrology. Fluid overload is one of the most common modifiable risk factors directly associated with hypertension, heart failure, left ventricular hypertrophy, and eventually, higher morbidity and mortality risk in these categories of patients. Different methods are commonly used to determine fluid status (eg, clinical assessment, natriuretic peptide concentrations, echocardiography, inferior vena cava measurements, or bioimpedance analysis)...
December 20, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29273924/changes-in-physical-activities-and-body-composition-after-roux-y-gastric-bypass-surgery
#11
Alex Harley Crisp, Rozangela Verlengia, Michele Novaes Ravelli, Irineu Rasera Junior, Maria Rita Marques de Oliveira
PURPOSE: Given the importance of physical activities for health outcomes, it is still unclear whether bariatric surgery per se and the standard care after surgery would result in an increase of physical activity level. This study aimed to determine physical activities preoperatively and at 6 and 12 months postoperatively among female patients who underwent bariatric surgery, and to investigate its relationship with body composition changes. MATERIAL AND METHODS: Thirty-four women who had Roux-Y gastric bypass (RYGB) surgery completed the study...
December 22, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29242410/adiposity-and-cortisol-response-to-stress-in-indian-adolescents
#12
G V Krishnaveni, A Jones, S R Veena, R Somashekara, S C Karat, C H D Fall
OBJECTIVE: Greater adiposity is a risk factor for altered hypothalamic-pituitary-adrenal axis reactivity to stress. We examined associations of different adiposity measures with cortisol responses during the Trier Social Stress Test for children (TSST-C). DESIGN: Cohort study. SETTING: Holdsworth Memorial Hospital, Mysore, India. PARTICIPANTS: Adolescents aged 13.5y from a birth cohort were recruited (N=269, 133 boys)...
December 14, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/29230392/non-invasive-monitoring-of-cardiac-output-in-critical-care-medicine
#13
REVIEW
Lee S Nguyen, Pierre Squara
Critically ill patients require close hemodynamic monitoring to titrate treatment on a regular basis. It allows administering fluid with parsimony and adjusting inotropes and vasoactive drugs when necessary. Although invasive monitoring is considered as the reference method, non-invasive monitoring presents the obvious advantage of being associated with fewer complications, at the expanse of accuracy, precision, and step-response change. A great many methods and devices are now used over the world, and this article focuses on several of them, providing with a brief review of related underlying physical principles and validation articles analysis...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29226115/body-composition-in-crohn-s-disease-and-ulcerative-colitis-correlation-with-disease-severity-and-duration
#14
Dawesh P Yadav, Saurabh Kedia, Kumble Seetharama Madhusudhan, Sawan Bopanna, Sandeep Goyal, Saransh Jain, Naval K Vikram, Raju Sharma, Govind K Makharia, Vineet Ahuja
Background: Results on body composition in Crohn's disease (CD) and ulcerative colitis (UC) have been heterogeneous and are lacking from Asia. Present study assessed body composition in CD/UC and correlated it with disease severity/duration. Methods: Patients of CD/UC following between Dec 2014 and Dec 2015 who consented for bioimpedance analysis for body fat measurement were included. Lean mass and fat-free mass index (FFMI) were calculated with standard formulae...
2017: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29222898/exercise-induced-dehydration-status-and-skinfold-compressibility-in-athletes-an-intervention-study
#15
Daniela Araújo, Vitor Hugo Teixeira, Pedro Carvalho, Teresa F Amaral
BACKGROUND AND OBJECTIVES: Skinfold thickness assessment is a widely recognized technique for the estimation of body adiposity and fat free mass. This method assumes that skinfolds' compressibility is constant but there are some factors that could influence its compressibility. This study aims to evaluate whether the skinfolds' compressibility is influenced by hydration status. METHODS AND STUDY DESIGN: An intervention study was conducted in a sample of 22 adult male amateur soccer players, who took part in a 90min simulated soccer match...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29209633/protein-intake-especially-vegetable-protein-intake-is-associated-with-higher-skeletal-muscle-mass-in-elderly-patients-with-type-2-diabetes
#16
Akane Miki, Yoshitaka Hashimoto, Shinobu Matsumoto, Emi Ushigome, Takuya Fukuda, Takafumi Sennmaru, Muhei Tanaka, Masahiro Yamazaki, Michiaki Fukui
Background/Aims: Protein intake is important for maintaining muscle mass in general population. However, it remains to be elucidated the association between dietary protein intake and skeletal muscle mass in elderly patients with type 2 diabetes. Methods: In this cross-sectional study of 168 elderly patients with type 2 diabetes, we investigated the relationship between skeletal muscle index (SMI) and protein intake. Bioimpedance analysis was used for measurement for skeletal muscle mass (kg) and SMI (%), which was defined as skeletal muscle mass (kg)/total body weight (kg) × 100...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29200951/the-clinical-usefulness-of-measurement-of-visceral-fat-area-using-multi-frequency-bioimpedance-the-association-with-cardiac-and-renal-function-in-general-population-with-relatively-normal-renal-function
#17
Hye Eun Yoon, Sang Su Choi, Yaeni Kim, Seok Joon Shin
Background: This study was performed to determine the clinical usefulness of measurement of visceral fat area (VFA) using bioimpedance analysis in relation with left ventricular hypertrophy (LVH), diastolic dysfunction parameters, and decreased estimated glomerular filtration rate (eGFR). Methods: A cross-sectional analysis was performed on 1028 patients with eGFR≥60 ml/min/1.73m2, aged 40 - 64 years, and who underwent routine health check-ups. Subjects were divided into tertiles based on their VFA. Associations of VFA with echocardiographic parameters and eGFR were evaluated...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29199402/changes-in-body-composition-according-to-age-and-sex-among-young-non-diabetic-korean-adults-the-kangbuk-samsung-health-study
#18
Seul Ki Kim, Yu Hyun Kwon, Jung Hwan Cho, Da Young Lee, Se Eun Park, Hyung Geun Oh, Cheol Young Park, Won Young Lee, Ki Won Oh, Sung Woo Park, Eun Jung Rhee
BACKGROUND: Age-related decreases in lean mass represent a serious health problem. We aimed to analyze the risks of rapid decreases in lean mass by age and sex in relatively young Korean adults during a 4-year follow-up study. METHODS: A total of 65,856 non-diabetic participants (59.5% men, mean age 39.1 years) in a health screening program were subjected to bioimpedance body composition analyses and metabolic parameter analyses at baseline and after 4 years. The participants were sub-divided according to age, and additionally to six groups by age and the degree of body weight change over the 4-year period...
November 21, 2017: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29175393/total-body-and-arm-bioimpedance-in-patients-with-alzheimer-s-disease
#19
Elena Mereu, Valeria Succa, Roberto Buffa, Cinzia Sanna, Rosa Maria Mereu, Olga Catte, Elisabetta Marini
PURPOSE OF THE RESEARCH: To analyse body composition of patients with Alzheimer's disease (AD) using total body and localized specific bioelectrical impedance vector analysis (specific BIVA). METHOD: 127 patients (50 men, 78.2±6.3years; 77 women, 81.4±6.8years) with mild to moderate stages of AD were selected from the Geriatric Division, SS. Trinità Hospital of Cagliari (Italy). A sample of 135 healthy age-matched individuals (74 men, 77.4±5.3years; 61 women, 80...
November 21, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29170709/effects-of-heat-exposure-on-body-water-assessed-using-single-frequency-bioelectrical-impedance-analysis-and-bioimpedance-spectroscopy
#20
Brett S Nickerson, Michael R Esco, Phillip A Bishop, Brian M Kliszczewicz, Henry N Williford, Kyung-Shin Park, Bailey A Welborn, Ronald L Snarr, Danilo V Tolusso
The purpose of this study was to determine if heat exposure alters the measures of total body water (TBW), extracellular water (ECW), and intracellular water (ICW) in both single-frequency bioelectrical impedance analysis (BIA) and bioimpedance spectroscopy (BIS). Additionally, we sought to determine if any differences exist between the BIA and BIS techniques before and after brief exposure to heat. Body water was evaluated for twenty men (age=24±4 years) in a thermoneutral environment (22°C) before (PRE) and immediately after (POST) 15 min of passive heating (35°C) in an environmental chamber...
2017: International Journal of Exercise Science
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