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https://www.readbyqxmd.com/read/28929631/accelerated-wound-healing-on-skin-by-electrical-stimulation-with-a-bioelectric-plaster
#1
Hiroyuki Kai, Takeshi Yamauchi, Yudai Ogawa, Ayaka Tsubota, Takahiro Magome, Takeo Miyake, Kenshi Yamasaki, Matsuhiko Nishizawa
Wound healing on skin involves cell migration and proliferation in response to endogenous electric current. External electrical stimulation by electrical equipment is used to promote these biological processes for the treatment of chronic wounds and ulcers. Miniaturization of the electrical stimulation device for wound healing on skin will make this technology more widely available. Using flexible enzymatic electrodes and stretchable hydrogel, a stretchable bioelectric plaster is fabricated with a built-in enzymatic biofuel cell (EBFC) that fits to skin and generates ionic current along the surface of the skin by enzymatic electrochemical reactions for more than 12 h...
September 20, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28929393/electrophysiological-characteristics-of-the-rat-azygos-vein-under-electrical-pacing-and-adrenergic-stimulation
#2
Alexandra D Ivanova, Vlad S Kuzmin
Rodent thoracic veins are characterized by an extended myocardial coating. In the present study, the electrical activity in the cardiac tissue of the rat azygos vein (AZV) was investigated for the first time. The atrial-like action potentials (AP) and atrial-like conduction of the excitation were observed in the rat AZV under continuous electrical pacing. Termination of electrical pacing resulted in spontaneous positive shift of resting membrane potential (RMP) in AZV. Boradrenaline induced biphasic effects on RMP in all quiescent AZV preparations but only in 25% preparations-bursts of spontaneous AP, which were suppressed by both α- and β-adrenoreceptor antagonists...
September 19, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/28928904/depletion-of-the-third-complement-component-ameliorates-age-dependent-oxidative-stress-and-positively-modulates-autophagic-activity-in-aged-retinas-in-a-mouse-model
#3
Dorota Rogińska, Miłosz P Kawa, Ewa Pius-Sadowska, Renata Lejkowska, Karolina Łuczkowska, Barbara Wiszniewska, Kai Kaarniranta, Jussi J Paterno, Christian A Schmidt, Bogusław Machaliński, Anna Machalińska
The aim of the study was to investigate the influence of complement component C3 global depletion on the biological structure and function of the aged retina. In vivo morphology (OCT), electrophysiological function (ERG), and the expression of selected oxidative stress-, apoptosis-, and autophagy-related proteins were assessed in retinas of 12-month-old C3-deficient and WT mice. Moreover, global gene expression in retinas was analyzed by RNA arrays. We found that the absence of active C3 was associated with (1) alleviation of the age-dependent decrease in retinal thickness and gradual deterioration of retinal bioelectrical function, (2) significantly higher levels of antioxidant enzymes (catalase and glutathione reductase) and the antiapoptotic survivin and Mcl-1/Bak dimer, (3) lower expression of the cellular oxidative stress marker-4HNE-and decreased activity of proapoptotic caspase-3, (4) ameliorated retinal autophagic activity with localization of ubiquitinated protein conjugates commonly along the retinal pigment epithelium (RPE) layer, and (5) significantly increased expression of several gene sets associated with maintenance of the physiological functions of the neural retina...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28928669/nature-s-electric-potential-a-systematic-review-of-the-role-of-bioelectricity-in-wound-healing-and-regenerative-processes-in-animals-humans-and-plants
#4
REVIEW
Sheena E B Tyler
Natural endogenous voltage gradients not only predict and correlate with growth and development but also drive wound healing and regeneration processes. This review summarizes the existing literature for the nature, sources, and transmission of information-bearing bioelectric signals involved in controlling wound healing and regeneration in animals, humans, and plants. It emerges that some bioelectric characteristics occur ubiquitously in a range of animal and plant species. However, the limits of similarities are probed to give a realistic assessment of future areas to be explored...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28917234/association-between-complement-component-c3-and-body-composition-a-possible-obesity-inflammatory-biomarker-for-insulin-resistance
#5
Hayder A Al-Domi, Reem M Al Haj Ahmad
BACKGROUND AND OBJECTIVES: The C3 complement component (C3) is increasingly recognized as a cardiometabolic risk factor. We aimed to examine the role of C3 in insulin resistance (IR) and its association with adiposity. METHODS AND STUDY DESIGN: Sixty-seven obese (18-35 years) participants were matched with normal weight participants from the University of Jordan. BMI, waist-hip ratio (WHpR), and waist-height ratio (WHtR) were calculated. Body percent fat mass (%FM) was determined using the bioelectrical impedance analysis...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28913934/the-incidence-of-sarcopenia-among-hospitalized-older-patients-results-from-the-glisten-study
#6
Anna Maria Martone, Lara Bianchi, Pasquale Abete, Giuseppe Bellelli, Mario Bo, Antonio Cherubini, Francesco Corica, Mauro Di Bari, Marcello Maggio, Giovanna Maria Manca, Emanuele Marzetti, Maria Rosaria Rizzo, Andrea Rossi, Stefano Volpato, Francesco Landi
BACKGROUND: New evidence is emerging on the importance of lean body mass during periods of illness and recovery. The preservation of lean body mass during such periods of intense stress impacts both patient and treatment outcomes. However, data concerning the incidence of sarcopenia among older people during hospitalization are scarce. The objective of this study was to evaluate the development of sarcopenia in a sample of hospitalized older subjects. METHODS: We used data of 394 participants from the multicentre Italian Study conducted by the Gruppo Lavoro Italiano Sarcopenia-Trattamento e Nutrizione (GLISTEN) in 12 Acute Care Wards (Internal Medicine and Geriatrics) of University Hospitals across Italy...
September 14, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28902162/percentage-of-body-fat-and-fat-mass-index-as-a-screening-tool-for-metabolic-syndrome-prediction-in-colombian-university-students
#7
Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Alejandra Sanders-Tordecilla, Mónica Liliana Ojeda-Pardo, Elisa Andrea Cobo-Mejía, Rocío Del Pilar Castellanos-Vega, Antonio García-Hermoso, Emilio González-Jiménez, Jacqueline Schmidt-RioValle, Katherine González-Ruíz
High body fat is related to metabolic syndrome (MetS) in all ethnic groups. Based on the International Diabetes Federation (IDF) definition of MetS, the aim of this study was to explore thresholds of body fat percentage (BF%) and fat mass index (FMI) for the prediction of MetS among Colombian University students. A cross-sectional study was conducted on 1687 volunteers (63.4% women, mean age = 20.6 years). Weight, waist circumference, serum lipids indices, blood pressure, and fasting plasma glucose were measured...
September 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28901331/raw-bia-variables-are-predictors-of-muscle-strength-in-patients-with-chronic-obstructive-pulmonary-disease
#8
F de Blasio, M G Santaniello, F de Blasio, G Mazzarella, A Bianco, L Lionetti, F M E Franssen, L Scalfi
BACKGROUND/OBJECTIVES: Although loss of fat-free mass (FFM) and reduced muscle strength are highly prevalent in chronic obstructive pulmonary disease (COPD), only few data are available on the relationships of handgrip strength (HGS) and respiratory muscle strength with body composition in such disease. In particular, we aimed to assess whether raw bioelectrical impedance (BIA) variables were independent predictors of muscle strength in COPD patients, possibly more significant than anthropometric variables and BIA-based estimates of FFM...
September 13, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28898833/bioelectricity-generation-contaminant-removal-and-bacterial-community-distribution-as-affected-by-substrate-material-size-and-aquatic-macrophyte-in-constructed-wetland-microbial-fuel-cell
#9
Junfeng Wang, Xinshan Song, Yuhui Wang, Junhong Bai, Heng Bai, Dengming Yan, Yin Cao, Yihao Li, Zhilei Yu, Guoqiang Dong
Integrating microbial fuel cell with constructed wetland (CW-MFC) is a novel way to harvest bioelectricity during wastewater treatment. In this study, the bioelectricity generation, containment removal and microbial community distribution in CW-MFC as affected by substrate material sizes and aquatic macrophyte were investigated. The planted CW-MFC with larger filler size showed a significant promotion of the relative abundance of electrochemically active bacteria (beta-Proteobacteria), which might result in the increase of bioelectricity generation in CW-MFC (8...
September 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28898779/ozone-cathode-microbial-desalination-cell-an-innovative-option-to-bioelectricity-generation-and-water-desalination
#10
Abdolmajid Gholizadeh, Ali Asghar Ebrahimi, Mohammad Hossein Salmani, Mohammad Hassan Ehrampoush
Microbial desalination cell (MDC) is a new approach of water desalination methods, which is based on ionic species removal from water in proportion to the electric current generated by bacteria. However, the low current generation and insufficient deionization in this technology have created challenges to improve the process. Here, the performance of MDC using ozone as a new electron acceptor (O3-MDC) was evaluated versus another operated independently with oxygen (O2-MDC). Results showed the maximum open-circuit voltages of 628 and 1331 mV for 20 g L(-1) NaCl desalination in O2-MDC and O3-MDC, respectively...
September 4, 2017: Chemosphere
https://www.readbyqxmd.com/read/28895540/polymorphism-rs3123554-in-the-cannabinoid-receptor-gene-type-2-cnr2-reveals-effects-on-body-weight-and-insulin-resistance-in-obese-subjects
#11
Daniel Antonio de Luis, Olatz Izaola, David Primo, Beatriz de la Fuente, Rocio Aller
BACKGROUND: Few studies assessing the relationship between single nucleotide polymorphisms in CNR2 and obesity or its related metabolic parameters are available. OBJECTIVE: To investigate the influence of polymorphism rs3123554 in the CNR2 receptor gene on obesity anthropometric parameters, insulin resistance, and adipokines in subjects with obesity. DESIGN: The study population consisted of 1027 obese subjects, who were performed bioelectrical impedance analyses, blood pressure measurements, serial assessments of dietary intake during three days, and biochemical tests...
October 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28895538/body-composition-in-a-population-of-school-adolescents-a-comparison-of-simple-anthropometric-methods-and-bioelectrical-impedance
#12
María I Tovar-Galvez, Emilio González-Jiménez, Celia Martí-García, Jacqueline Schmidt-RioValle
OBJECTIVES: To report the anthropometric characteristics and body composition and to analyze the potential sex-based differences in Spanish schoolchildren and adolescents living in Granada and Ceuta. To estimate body fat percentage using regression equations and bioelectrical impedance to check for sex differences. An additional objective was to see whether the body fat percentages obtained by these two methods were similar. METHODS: A cross-sectional study including 1,518 children and adolescents (aged 9-16) from 12 primary and secondary schools in Ceuta and Granada...
October 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28895079/visceral-adipose-tissue-as-a-risk-factor-for-diabetes-mellitus-in-patients-with-chronic-pancreatitis-a-cross-sectional-observational-study
#13
K V S Hari Kumar, Rahul Sharma, Manish Manrai, A K Sood
INTRODUCTION: Visceral adipose tissue (VAT) is a risk factor for diabetes and we investigated the amount of VAT in patients with chronic pancreatitis (CP). METHODS: Serial patients with CP seen between January 2015 and June 2016 were included in this cross-sectional, observational study. The study population was divided into alcoholic CP (group 1; N = 67) and tropical CP (group 2; N = 35). VAT was estimated using bioelectric impedance analysis (BIA) and dual energy X-ray absorptiometry (DEXA) methods...
September 11, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28894826/functional-and-histological-effects-of-chronic-neural-electrode-implantation
#14
REVIEW
Ronald Sahyouni, David T Chang, Omid Moshtaghi, Amin Mahmoodi, Hamid R Djalilian, Harrison W Lin
OBJECTIVES: Permanent injury to the cranial nerves can often result in a substantial reduction in quality of life. Novel and innovative interventions can help restore form and function in nerve paralysis, with bioelectric interfaces among the more promising of these approaches. The foreign body response is an important consideration for any bioelectric device as it influences the function and effectiveness of the implant. The purpose of this review is to describe tissue and functional effects of chronic neural implantation among the different categories of neural implants and highlight advances in peripheral and cranial nerve stimulation...
April 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28894644/anthropometric-physical-function-and-general-health-markers-of-masters-athletes-a-cross-sectional-study
#15
Samantha Fien, Mike Climstein, Clodagh Quilter, Georgina Buckley, Timothy Henwood, Josie Grigg, Justin W L Keogh
Once the general decline in muscle mass, muscle strength and physical performance falls below specific thresholds, the middle aged or older adult will be diagnosed as having sarcopenia (a loss of skeletal muscle mass and strength). Sarcopenia contributes to a range of adverse events in older age including disability, hospitalisation, institutionalisation and falls. One potentially relevant but understudied population for sarcopenia researchers would be Masters athletes. Masters sport is becoming more common as it allows athletes (typically 40 years and older) the opportunity to participate in individual and/or team sports against individuals of similar age...
2017: PeerJ
https://www.readbyqxmd.com/read/28894465/a-comprehensive-review-of-bioelectrical-impedance-analysis-and-other-methods-in-the-assessment-of-nutritional-status-in-patients-with-liver-cirrhosis
#16
REVIEW
Halina Cichoż-Lach, Agata Michalak
It is assumed that approximately 24-66% of patients with liver cirrhosis develop malnutrition. Numerous pathological processes lead to serious disorders of nutritional status in this group of patients. Malnutrition in the course of liver cirrhosis is associated with increased morbidity, complications, and low quality of life. Under these conditions, detection of malnutrition is of crucial importance. This review explores the complex mechanisms that lead to malnutrition in the course of liver cirrhosis and focuses on methods used in the assessment of nutritional status in cirrhotic patients...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28875517/are-plants-sentient
#17
Paco Calvo, Vaidurya Sahi, Anthony Trewavas
Feelings in humans are mental states representing groups of physiological functions that usually have defined behavioural purposes. Feelings, being evolutionarily ancient, are thought to be coordinated in the brain stem of animals. One function of the brain is to prioritise between competing mental states, and thus groups of physiological functions and in turn behaviour. Plants use groups of coordinated physiological activities to deal with defined environmental situations but currently have no known mental state to prioritise any order of response...
September 6, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28870487/comparison-of-new-adiposity-indices-for-the-prediction-of-body-fat-in-hospitalized-patients
#18
Bruna Ramos da Silva, Mirele Savegnago Mialich, Francisco José Albuquerque de Paula, Alceu Afonso Jordao
OBJECTIVE: To measure the accuracy of the body mass index (BMI), BMI adjusted for fat mass (BMIfat), body adiposity index (BAI), BAI for the Fels Longitudinal Study sample, Clínica Universidad de Navarra-Body Adiposity Estimator, and fat mass index and to compare the accuracy to that of bioelectrical impedance and dual-energy x-ray absorptiometry (DXA) in a sample of the Brazilian population. METHODS: A cross-sectional study conducted on 240 hospitalized patients, 43 (18%) male and 197 (83%) female...
October 2017: Nutrition
https://www.readbyqxmd.com/read/28870482/influence-of-chemotherapy-on-total-energy-expenditure-in-patients-with-gastrointestinal-cancer-a-pilot-study
#19
Maria Teresa Viggiani, Orsola Lorusso, Federica Natalizio, Mariabeatrice Principi, Alfredo Di Leo, Michele Barone
OBJECTIVE: Resting energy expenditure (REE) and physical activity (PA) undergo variations during chemotherapy. The aim of this study was to use a metabolic Holter (SenseWear Armband [SWA]) to assess REE, total energy expenditure (TEE), and PA changes in patients undergoing chemotherapy to ensure the appropriate calorie intake. To our knowledge, this is the first study to do so. METHODS: Eight patients with gastrointestinal tumors and a Karnofsky performance status of >50 underwent evaluation of the body mass index; REE, TEE, metabolic equivalent, and sleep efficiency were evaluated by SWA...
October 2017: Nutrition
https://www.readbyqxmd.com/read/28870376/associations-of-body-mass-index-and-body-fat-with-markers%C3%A2-of%C3%A2-inflammation-and-nutrition-among-patients-receiving%C3%A2-hemodialysis
#20
Cynthia Delgado, Glenn M Chertow, George A Kaysen, Lorien S Dalrymple, John Kornak, Barbara Grimes, Kirsten L Johansen
BACKGROUND: Understanding the extent to which visceral and subcutaneous body fat are associated with markers of nutrition and inflammation in patients on dialysis therapy could shed light on the obesity paradox and the biology of subcutaneous fat. STUDY DESIGN: Cross-sectional. SETTING & PARTICIPANTS: 609 adults receiving hemodialysis who participated in the ACTIVE/ADIPOSE Study. PREDICTORS: Body mass index (BMI), waist circumference, and bioelectrical impedance spectroscopy-derived estimates of percent body fat...
September 1, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
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