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"Extracellular water"

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https://www.readbyqxmd.com/read/29018100/randomized-crossover-trial-of-blood-volume-monitoring-guided-ultrafiltration-biofeedback-to-reduce-intradialytic-hypotensive-episodes-with-hemodialysis
#1
Kelvin C W Leung, Robert R Quinn, Pietro Ravani, Henry Duff, Jennifer M MacRae
BACKGROUND AND OBJECTIVES: Intradialytic hypotension (IDH) is associated with morbidity. The effect of blood volume-guided ultrafiltration biofeedback, which automatically adjusts fluid removal rate on the basis of blood volume parameters, on the reduction of IDH was tested in a randomized crossover trial. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We performed a 22-week, single blind, randomized crossover trial in patients receiving maintenance hemodialysis who had >30% of sessions complicated by symptomatic IDH in five centers in Calgary, Alberta, Canada...
October 10, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28992817/clinical-recommendations-for-cardiovascular-magnetic-resonance-mapping-of-t1-t2-t2-and-extracellular-volume-a-consensus-statement-by-the-society-for-cardiovascular-magnetic-resonance-scmr-endorsed-by-the-european-association-for-cardiovascular-imaging-eacvi
#2
REVIEW
Daniel R Messroghli, James C Moon, Vanessa M Ferreira, Lars Grosse-Wortmann, Taigang He, Peter Kellman, Julia Mascherbauer, Reza Nezafat, Michael Salerno, Erik B Schelbert, Andrew J Taylor, Richard Thompson, Martin Ugander, Ruud B van Heeswijk, Matthias G Friedrich
Parametric mapping techniques provide a non-invasive tool for quantifying tissue alterations in myocardial disease in those eligible for cardiovascular magnetic resonance (CMR). Parametric mapping with CMR now permits the routine spatial visualization and quantification of changes in myocardial composition based on changes in T1, T2, and T2*(star) relaxation times and extracellular volume (ECV). These changes include specific disease pathways related to mainly intracellular disturbances of the cardiomyocyte (e...
October 9, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28979785/estimated-dietary-sodium-intake-in-haemodialysis-patients-using-food-frequency-questionnaires
#3
Anastasia Gkza, Andrew Davenport
BACKGROUND: In clinical practice, dietary sodium assessment requires reliable and rapid screening tools. We wished to evaluate the usefulness of food frequency questionnaires (FFQ) in estimating dietary sodium intakes in haemodialysis patients. METHODS: We used the Derby Salt Questionnaire (DSQ), and Scored Sodium Questionnaire (SSQ) to estimate sodium intake. Body composition was determined by bioimpedance. RESULTS: In total, 139 haemodialysis patients (95 men) completed the FFQs, with mean ± standard deviation age 67 ± 15 years...
October 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28874359/postchallenge-hyperglycemia-in-subjects-with-low-body-weight-implication-for-small-glucose-volume
#4
Takahiro Sakuma, Koh Yamashita, Takahiro Miyakoshi, Masanori Shimodaira, Naokazu Yokota, Yuka Sato, Kazuko Hirabayashi, Hideo Koike, Keishi Yamauchi, Takuro Shimbo, Toru Aizawa
A hypothesis that postchallenge hyperglycemia in subjects with low body weight (BW) may be in part due to small glucose volume (Gv) was tested. We studied 11,411 non-diabetic subjects with a mean BW of 63.3 kg. 5,282 of them were followed for a mean of 5.3 years. In another group of 1,537 non-diabetic subjects, insulin sensitivity, secretion, and a product of the two (index of whole body insulin action) were determined. Corrected 2 hour-plasma glucose (2hPGcorr) during a 75 g oral glucose tolerance test in subjects with BW ≤ 59 kg was calculated as, 2hPGcorr=〖δPG〗_2h ·ECW/[16...
September 5, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28861929/myelin-content-changes-in-probable-alzheimer-s-disease-and-mild-cognitive-impairment-associations-with-age-and-severity-of-neuropsychiatric-impairment
#5
Eleftherios Kavroulakis, Panagiotis G Simos, Georgios Kalaitzakis, Thomas G Maris, Dimitra Karageorgou, Ioannis Zaganas, Simeon Panagiotakis, Maria Basta, Alexandros Vgontzas, Efrosini Papadaki
BACKGROUND: Existing indices of white matter integrity such as fractional anisotropy and magnetization transfer ratio may not provide optimal specificity to myelin content. In contrast, myelin water fraction (MWF) derived from the multiecho T2 relaxation time technique may serve as a more direct measure of myelin content. PURPOSE/HYPOTHESIS: The goal of the present study was to identify markers of regional demyelination in patients with probable Alzheimer's disease (AD) and mild cognitive impairment (MCI) in relation to age and severity of neuropsychiatric impairment...
August 31, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28830412/body-composition-and-personality-traits-in-so-yang-type-males
#6
Jiwon Yoon, Jiho Nam, Chae Hun Leem, Jong Yeol Kim
BACKGROUND: The purpose of the present study was to examine the body composition of So-Yang type males according to Sasang constitutional medicine, which is popular in Korea. Different Sasang constitutional types are associated with different muscle distributions, body shapes, and disease susceptibilities. We used the Sasang Personality Questionnaire (SPQ) as a measure of the temperament of each Sasang type. METHODS: In total, 953 subjects aged over 20 years were recruited in Korea...
August 22, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28829810/extracellular-overhydration-linked-with-endothelial-dysfunction-in-the-context-of-inflammation-in-haemodialysis-dependent-chronic-kidney-disease
#7
Nicos Mitsides, Tom Cornelis, Natascha J H Broers, Nanda M P Diederen, Paul Brenchley, Frank M van der Sande, Casper G Schalkwijk, Jeroen P Kooman, Sandip Mitra
BACKGROUND: Haemodialysis (HD) patients are predisposed to dysregulated fluid balance leading to extracellular water (ECW) expansion. Fluid overload has been closely linked with outcome in these patients. This has mainly been attributed to cardiac volume overload, but the relation between abnormalities in fluid status with micro- and macrovascular dysfunction has not been studied in detail. We studied the interaction of macro- and microvascular factors in states of normal and over- hydration in HD-dependent CKD...
2017: PloS One
https://www.readbyqxmd.com/read/28818116/distinct-white-matter-microstructural-abnormalities-and-extracellular-water-increases-relate-to-cognitive-impairment-in-alzheimer-s-disease-with-and-without-cerebrovascular-disease
#8
Fang Ji, Ofer Pasternak, Siwei Liu, Yng Miin Loke, Boon Linn Choo, Saima Hilal, Xin Xu, Mohammad Kamran Ikram, Narayanaswamy Venketasubramanian, Christopher Li-Hsian Chen, Juan Zhou
BACKGROUND: Mixed vascular and neurodegenerative dementia, such as Alzheimer's disease (AD) with concomitant cerebrovascular disease, has emerged as the leading cause of age-related cognitive impairment. The brain white matter (WM) microstructural changes in neurodegeneration well-documented by diffusion tensor imaging (DTI) can originate from brain tissue or extracellular free water changes. The differential microstructural and free water changes in AD with and without cerebrovascular disease, especially in normal-appearing WM, remain largely unknown...
August 17, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28794293/association-of-pulmonary-hypertension-with-inflammation-and-fluid-overload-in-hemodialysis-patients
#9
Hugo Hyung Bok Yoo, Roberto Dos Reis, Wagner Moneda Telini, Lidiane Rodrigues Telini, João Carlos Hueb, Silmeia Garcia Zanati Bazan, Pasqual Barretti, Luis Cuadrado Martin, Thais Thomaz Queluz
INTRODUCTION: Pulmonary hypertension (PH) has been reported in hemodialysis patients, but data regarding its pathogenesis are scarce. This study aimed to evaluate the role of fluid overload in PH and its interrelationships with the usual biomarkers of micro-inflammatory state in hemodialysis patients. MATERIALS AND METHODS: In is a cross-sectional and prospective study, 119 consecutive hemodialysis patients at a Brazilian referral university hospital were evaluated between March 2007 and February 2013...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28782447/global-loss-of-myelin-water-over-5-years-in-multiple-sclerosis-normal-appearing-white-matter
#10
Irene M Vavasour, Sophie C Huijskens, David Kb Li, Anthony L Traboulsee, Burkhard Mädler, Shannon H Kolind, Alexander Rauscher, Gr Wayne Moore, Alex L MacKay, Cornelia Laule
BACKGROUND: Reduced myelin water fraction (MWF, a marker for myelin), increased geometric mean T2 (ieGMT2, reflecting intra/extracellular water properties), and increased T1 (related to total water content) have been observed in cross-sectional studies of multiple sclerosis (MS) normal-appearing white matter (NAWM). OBJECTIVE: To assess longitudinal changes of magnetic resonance (MR) measures in relapsing-remitting MS (RRMS) brain NAWM. METHODS: A total of 11 subjects with RRMS and 4 controls were scanned on a 3T MRI at baseline and long-term follow-up (LTFU; 3...
August 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28755131/increase-in-echo-intensity-and-extracellular-to-intracellular-water-ratio-is-independently-associated-with-muscle-weakness-in-elderly-women
#11
Masashi Taniguchi, Yosuke Yamada, Yoshihiro Fukumoto, Shinichiro Sawano, Seigo Minami, Tome Ikezoe, Yuya Watanabe, Misaka Kimura, Noriaki Ichihashi
PURPOSE: The changes in muscle composition and its heterogeneity during aging are associated with muscle weakness in elderly persons independent of decreases in muscle mass or muscle thickness (MT). Both the assessment of echo intensity (EI) with ultrasound imaging and the evaluation of the extracellular water/intracellular water (ECW/ICW) ratio with segmental bioelectrical impedance spectroscopy (BIS) are non-invasive and convenient methods and seem valuable for muscle quality determination...
July 28, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28751054/the-role-of-bioelectrical-impedance-analysis-nt-probnp-and-inferior-vena-cava-sonography-in-the-assessment-of-body-fluid-volume-in-children-with-nephrotic-syndrome
#12
Hulya Nalcacioglu, Ozan Ozkaya, Kemal Baysal, Hassan Candas Kafali, Bahattin Avci, Demet Tekcan, Gurkan Genc
BACKGROUND: Assessment of volume status and differentiating "underfill" and "overfill" edema is essential in the management of patients with nephrotic syndrome (NS). OBJECTIVES: Our aim was to evaluate the volume status of NS patients by using different methods and to investigate the utility of bioelectrical impedance analysis (BIA) in children with NS. METHODS: The hydration status of 19 patients with NS (before treatment of NS and at remission) and 25 healthy controls was assessed by multifrequency BIA, serum N-terminal-pro-brain natriuretic peptide (NT-proBNP) levels, inferior vena cava (IVC) diameter, left atrium diameter (LAD) and vasoactive hormones...
July 24, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28727018/evaluation-of-electrical-broad-bandwidth-impedance-spectroscopy-as-a-tool-for-body-composition-measurement-in-cows-in-comparison-with-body-measurements-and-the-deuterium-oxide-dilution-method
#13
C T Schäff, U Pliquett, A Tuchscherer, R Pfuhl, S Görs, C C Metges, H M Hammon, C Kröger-Koch
Body fatness and degree of body fat mobilization in cows vary enormously during their reproduction cycle and influence energy partitioning and metabolic adaptation. The objective of the study was to test bioelectrical impedance spectroscopy (BIS) as a method for predicting fat depot mass (FDM), in living cows. The FDM is defined as the sum of subcutaneous, omental, mesenteric, retroperitoneal, and carcass fat mass. Bioelectrical impedance spectroscopy is compared with the prediction of FDM from the deuterium oxide (DO) dilution method and from body conformation measurements...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28722029/effects-of-procedure-upright-equilibrium-time-sex-and-bmi-on-the-precision-of-body-fluid-measurements-using-bioelectrical-impedance-analysis
#14
S Thurlow, G Taylor-Covill, P Sahota, B Oldroyd, K Hind
BACKGROUND/OBJECTIVES: Extensive work has addressed the validity of bioimpedance (BIA) measurements and the effect of posture on fluid homeostasis. However, limited research has investigated effects of subject preparation. This study aimed to determine the precision of total body water (TBW) and extracellular water (ECW) measurements using a stand-on multifrequency BIA (MFBIA seca mBCA 514/515), in three pre-test procedures: supine, sitting, and following walking, with specific reference to the influence of sex and body mass index (BMI)...
July 19, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28701677/mechanisms-of-diuresis-for-acute-decompensated-heart-failure-by-tolvaptan
#15
RANDOMIZED CONTROLLED TRIAL
Hidetsugu Nomoto, Yasuhiro Satoh, Mayu Kamiyama, Kento Yabe, Mayumi Masumura, Atsushi Sakakibara, Shu Yamashita, Masahito Suzuki, Tomoyo Sugiyama, Tetsuo Oumi, Masakazu Ohno, Yoshihide Takahashi, Mitsuaki Isobe
Tolvaptan, a vasopressin type 2 receptor antagonist, does not affect kidney circulation or cause worsening of renal function (WRF) in patients with acute decompensated heart failure (ADHF). Bioelectrical impedance analysis (BIA) can be used to evaluate intravascular volume by calculating the ratio of extracellular water (ECW) to intracellular water (ICW). There have been no reports examining the mechanisms of tolvaptan-induced diuresis using BIA. We investigated whether tolvaptan decreases excess volume while maintaining intravascular volume in ADHF patients...
August 3, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28696961/current-body-composition-measurement-techniques
#16
Thaisa Lemos, Dympna Gallagher
PURPOSE OF REVIEW: The current article reviews the most innovative and precise, available methods for quantification of in-vivo human body composition. RECENT FINDINGS: Body composition measurement methods are continuously being perfected. Ongoing efforts involve multisegmental and multifrequency bioelectrical impedance analysis, quantitative magnetic resonance for total body water, fat, and lean tissue measurements, imaging to further define ectopic fat depots...
July 10, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28676829/changes-in-body-water-caused-by-sleep-deprivation-in-taeeum-and-soyang-types-in-sasang-medicine-prospective-intervention-study
#17
Seung Min Hong, Byung Joo Kim, Seungwon Shin, Minwoo Hwang
BACKGROUND: There is a negative relationship between sleep deprivation and health. However, no study has investigated the effect of sleep deprivation on individuals with different body composition. The aim of this study was to determine the differential effect of sleep deprivation in individuals with different body compositions (fluid) according to Soyang type (SY) and Taeeum type (TE). METHODS: Sixty-two cognitively normal, middle-aged people with normal sleep patterns were recruited from the local population...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28665828/monitoring-volume-status-using-bioelectrical-impedance-analysis-in-chronic-hemodialysis-patients
#18
Chae Rim Kim, Jung-Ho Shin, Jin Ho Hwang, Su Hyun Kim
Fluid overload can be an independent risk factor of cardiovascular events and all-cause death in end-stage renal disease (ESRD) patients on chronic hemodialysis. We performed a retrospective study to investigate whether intermittent control of fluid status decreases the rate of these complications using bioelectrical impedance analysis (BIA). In ESRD patients on chronic hemodialysis, we identified the ratio of extracellular water to total body water (ECW/TBW) every 6 months using InBody S10 (Biospace, Seoul, Korea), which was measured within 30 minutes after dialysis initiation on the first dialysis day of the week...
June 24, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28651383/rising-temperature-stimulates-the-biosynthesis-of-water-soluble-fluorescent-yellow-pigments-and-gene-expression-in-monascus-ruber-cgmcc10910
#19
Tao Huang, Hailing Tan, Gong Chen, Lu Wang, Zhenqiang Wu
Monascus species can produce secondary metabolites that have a polyketide structure. In this study, four types of extracellular water-soluble yellow pigments (Y1-Y4) were generated by submerged fermentation with Monascus ruber CGMCC 10910, of which Y3 and Y4 had strong yellow fluorescence. The composition of the pigment mixtures was closely related to the fermentation temperature. The dominating pigments changed from Y1 to Y3 and Y4 when fermentation temperature increased from 30 to 35 °C. Increasing the temperature to 35 °C changed the metabolic pathways of the pigments, which inhibited the biosynthesis of Y1 and enhanced the biosynthesis of Y3 and Y4...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28644562/efficacy-of-ipragliflozin-as-monotherapy-or-as-add-on-therapy-with-other-oral-antidiabetic-medications-in-treating-type-2-diabetes-in-japanese-patients-with-inadequate-glycemic-control-a-subgroup-analysis-based-on-patient-characteristics
#20
Takeshi Osonoi, Shinya Nakamoto, Miyoko Saito, Atsuko Tamasawa, Hidenori Ishida, Yusuke Osonoi
AIMS/INTRODUCTION: The aim of the present study was to evaluate the efficacy and safety of ipragliflozin in treating Japanese type 2 diabetic patients with inadequate glycemic control by investigating diurnal variations of blood glucose and body composition. MATERIALS AND METHODS: This was an investigator-initiated, multicenter, prospective study with a 6-month treatment period. The primary outcome investigated was change in hemoglobin A1c levels from baseline. Secondary outcomes included changes in fasting plasma glucose, insulin resistance, variations in 24-h glucose levels detected by continuous glucose monitoring, body weight, body composition, waist circumference, and serum lipids...
June 23, 2017: Journal of Diabetes Investigation
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