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Hydration status

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https://www.readbyqxmd.com/read/29420149/muscle-glycogen-depletion-does-not-alter-segmental-extracellular-and-intracellular-water-distribution-measured-using-bioimpedance-spectroscopy
#1
Keisuke Shiose, Yosuke Yamada, Keiko Motonaga, Hideyuki Takahashi
Although each gram of glycogen is well known to bind 2.7-4.0 g of water, no studies have been conducted on the effect of muscle glycogen depletion on body water distribution. We investigated changes in extracellular and intracellular water (ECW and ICW) distribution in each body segment in muscle glycogen-depletion and glycogen-recovery condition using segmental bioimpedance spectroscopy technique (BIS). Twelve male subjects consumed 7.0 g.kg body mass-1 of indigestible (glycogen-depleted group) or digestible (glycogen-recovered group) carbohydrate for 24 hours after a glycogen-depletion cycling exercise...
February 8, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29413107/bioimpedance-parameters-in-adolescent-athletes-in-relation-to-bone-maturity-and-biochemical-zinc-indices
#2
Josely Correa Koury, Astrogildo Vianna de Oliveira-Junior, Mariana Ribeiro Costa Portugal, Karla de Jesus Fernandes de Oliveira, Carmen Marino Donangelo
Phase angle (PA) is derived from resistance and reactance determined by bioimpedance analysis (BIA) and it appears to relate to cellular stability and integrity. Interpretation of PA values could be complemented by bioelectrical impedance vector analysis (BIVA), which relates to body hydration and structure. Body composition, age, sex, and nutrients are known to stabilize cell membranes, such as zinc, have been related to PA although information is scarce in adolescent athletes. The aim of the present study was to assess the association of body composition, skeletal maturity and zinc biochemical indices with phase angle and bioelectrical impedance parameters, in forty male adolescent soccer athletes (13...
March 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29411452/effects-of-controlled-dehydration-on-sleep-quality-and-quantity-a-polysomnographic-study-in-healthy-young-adults
#3
Panagiotis Aristotelous, George Aphamis, Giorgos K Sakkas, Eleni Andreou, Marios Pantzaris, Theodoros Kyprianou, Georgios M Hadjigeorgiou, Mauro Manconi, Christoforos D Giannaki
Dehydration is associated with several alternations in body homeostasis involving both physiological and mental aspects. In addition some studies have reported a negative effect of dehydration on subjectively assessed sleep-related parameters. The aim of the current study was to examine for the first time the effect of controlled dehydration on sleep quality and quantity using the gold-standard method of polysomnography. Twelve healthy male volunteers participated in this study (23.4 ± 0.8 years). Participants performed an in-house full polysomnographic assessment in two different occasions taking place in random order: (i) in a dehydrated state; and (ii) in a euhydrated state...
February 7, 2018: Journal of Sleep Research
https://www.readbyqxmd.com/read/29388529/disparities-in-plain-tap-and-bottled-water-consumption-among-us-adults-national-health-and-nutrition-examination-survey-nhanes-2007-2014
#4
Asher Y Rosinger, Kirsten A Herrick, Amber Y Wutich, Jonathan S Yoder, Cynthia L Ogden
OBJECTIVE: Differences in bottled v. tap water intake may provide insights into health disparities, like risk of dental caries and inadequate hydration. We examined differences in plain, tap and bottled water consumption among US adults by sociodemographic characteristics. DESIGN: Cross-sectional analysis. We used 24 h dietary recall data to test differences in percentage consuming the water sources and mean intake between groups using Wald tests and multiple logistic and linear regression models...
February 1, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/29368184/does-cold-water-or-ice-slurry-ingestion-during-exercise-elicit-a-net-body-cooling-effect-in-the-heat
#5
Ollie Jay, Nathan B Morris
Cold water or ice slurry ingestion during exercise seems to be an effective and practical means to improve endurance exercise performance in the heat. However, transient reductions in sweating appear to decrease the potential for evaporative heat loss from the skin by a magnitude that at least negates the additional internal heat loss as a cold ingested fluid warms up to equilibrate with body temperature; thus explaining equivalent core temperatures during exercise at a fixed heat production irrespective of the ingested fluid temperature...
January 24, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29367255/hydration-and-obesity-among-outpatient-based-population-h2ob-study
#6
Juana Carretero-Gómez, Jose Carlos Arévalo Lorido, Ricardo Gómez Huelgas, Begoña De Escalante Yangüela, Borja Gracia Tello, Luis Pérez Belmonte, Javier Ena Muñoz
Recent evidence suggests that obese people are hypohydrated and that water consumption may be a useful indicator for the prevention and treatment of obesity. Nevertheless, there is no agreement regarding the best hydration status indicators and there are few data about the relationship between hydration and body weight. In the present study, we aim to analyze the correlation among hydration status with obesity measured by three different methods (plasma osmolarity, urinary specific gravity (USG) and urinary osmolarity) in a hospital-based outpatient population...
January 23, 2018: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/29364234/measuring-deformability-and-red-cell-heterogeneity-in-blood-by-ektacytometry
#7
Nermi L Parrow, Pierre-Christian Violet, Hongbin Tu, James Nichols, Corinne A Pittman, Courtney Fitzhugh, Robert E Fleming, Narla Mohandas, John F Tisdale, Mark Levine
Decreased red cell deformability is characteristic of several disorders. In some cases, the extent of defective deformability can predict severity of disease or occurrence of serious complications. Ektacytometry uses laser diffraction viscometry to measure the deformability of red blood cells subject to either increasing shear stress or an osmotic gradient at a constant value of applied shear stress. However, direct deformability measurements are difficult to interpret when measuring heterogenous blood that is characterized by the presence of both rigid and deformable red cells...
January 12, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29364084/measured-and-perceived-indices-of-fluid-balance-in-professional-athletes-the-use-and-impact-of-hydration-assessment-strategies
#8
T D Love, D F Baker, P Healey, K E Black
BACKGROUND: To determine athletes perceived and measured indices of fluid balance during training and the influence of hydration strategy use on these parameters. METHODS: Thirty-three professional rugby union players completed a 120 minute training session in hot conditions (35°C, 40% relative humidity). Pre-training hydration status, sweat loss, fluid intake and changes in body mass (BM) were obtained. The use of hydration assessment techniques and players perceptions of fluid intake and sweat loss were obtained via a questionnaire...
January 24, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29356875/upper-metastable-limit-osmolality-of-urine-as-a-predictor-of-kidney-stone-formation-in-children
#9
Tadeusz Porowski, Jan K Kirejczyk, Piotr Mrozek, Piotr Protas, Agata Kozerska, Łukasz Łabieniec, Krzysztof Szymański, Anna Wasilewska
High fluid intake has been universally recommended for kidney stone prophylaxis. We evaluated 24-h urine osmolality regarded as the best biomarker of optimal hydration and upper metastable limit osmolality after water evaporation from urine sample to the onset of spontaneous crystallization and its usefulness as a new risk index that would describe an individual lithogenic potential. We collected 24-h urine from 257 pediatric patients with kidney stones and 270 controls. After volume and osmolality assessment, the urine samples were subjected to volume reduction in vacuum rotavapor continued to the onset of an induced urinary crystallization...
January 22, 2018: Urolithiasis
https://www.readbyqxmd.com/read/29351436/therapeutic-attenuation-of-the-epithelial-sodium-channel-with-a-splunc1-derived-peptide-in-airway-diseases
#10
James F Collawn, Rafal Bartoszewski, Ahmad Lazrak, Sadis Matalon
The airway surface liquid (ASL) coats the lining of the airways and allows for efficient cilial movement and therefore effective mucociliary transport. Cell surface channels regulate the hydration status of the ASL and the two critical channels in the process are the cystic fibrosis transmembrane conductance regulator (CFTR) and the amiloride-sensitive epithelial sodium channel (ENaC). In cystic fibrosis (CF) and chronic obstructive pulmonary disease (COPD) there is loss of CFTR function or compromised CFTR function in chronic bronchitis, respectively...
January 4, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29351422/body-mass-specific-na-k-atpase-activity-in-the-medullary-thick-ascending-limb-implications-for-species-dependent-urine-concentrating-mechanisms
#11
Mun Aw, Tamara M Armstrong, C Michele Nawata, Sarah N Bodine, Jeeeun J Oh, Guojun Wei, Kristen K Evans, Mohammad Shahidullah, Timo Rieg, Thomas L Pannabecker
In general, mammalian whole body mass-specific metabolic rate correlates positively with maximal urine concentration (Umax) irrespective of whether or not the species have adapted to arid or mesic habitat. Accordingly, we hypothesized that the thick ascending limb (TAL) of a rodent with markedly higher whole body mass-specific metabolism than rat exhibits a substantially higher TAL metabolic rate as estimated by Na+, K+-ATPase activity and Na+, K+-ATPase α1 gene and protein expression. The kangaroo rat inner stripe of the outer medulla exhibits significantly higher mean Na+, K+-ATPase activity (~70%) compared to 2 rat strains (Sprague-Dawley and Munich-Wistar), extending prior studies showing rat activity exceeds rabbit...
January 3, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29344437/rhabdomyolysis-in-a-patient-taking-both-oxandrolone-for-bodybuilding-and-methamphetamine
#12
Michael Krzyzak, Natarajan Elangovan
Nonprescription drug use is increasingly prevalent in the United States. We report a case of a 31-year-old male who presented with hallucinations and was found to have rhabdomyolysis. He was consuming oxandrolone for six weeks and ingested methamphetamine the night prior to presentation. With supportive treatment, including intravenous hydration, the patient's mental status returned to baseline and rhabdomyolysis resolved. Our case illustrates the need to understand the interaction between different illicit substances...
November 13, 2017: Curēus
https://www.readbyqxmd.com/read/29319767/variables-associated-with-lung-congestion-as-assessed-by-chest-ultrasound-in-diabetics-undergoing-hemodialysis
#13
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/29319761/isotonic-sports-drink-promotes-rehydration-and-decreases-proteinuria-following-karate-training
#14
Simone Geraldini, Igor de Freitas Cruz, Alexandre Romero, Fernando Luiz Affonso Fonseca, Michelle Parreira de Campos
INTRODUCTION: Adequate hydration status in the sport is essential for good health, yet the relationship between hydration, proteinuria and sports is little studied. OBJECTIVE: To analyze the influence of an isotonic sports drink as rehydration strategy on the hydration status and proteinuria after karate training. METHODS: Ten athletes participated in this study. In the first session of standard training, called observation training session (STO), the athletes hydrated themselves according to their habits, and in the second session of standard training, called nutritional intervention training session (STIN), an ideal practice of hydration protocol was followed, using an isotonic sports drink as a rehydration liquid during the training...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29290087/does-mild-hydronephrosis-induced-by-full-bladder-improve-outcomes-in-patients-undergoing-shock-wave-lithotripsy-for-lower-calyceal-stones-a-prospective-randomized-study
#15
Ismet Aydin Hazar, Basri Cakiroglu, Orhun Sinanoglu, Feride Sinem Akgün, Ersan Arda, Ilkan Yuksel, Hakan Akdere
PURPOSE: To compare the outcomes, sessions and shock wave numbers in patients undergoing standard procedure shock wave lithotripsy (SWL) and patients undergoing SWL with mild hydronephrosis induced by full-bladderfollowing oral hydration before SWL procedure for lower calyceal stones. MATERIALS AND METHODS: Between January 2014- January 2016 a total of 371 patients who underwent SWL, for lower pole calyceal stones ? 2 cm, were included into the study. 127 patients were treated in the supine position (Group A), 123 in the prone position (Group B) and 121 in the prone position with full bladder and mild hydronephrosis checked by ultrasound before procedure (Group C)...
December 26, 2017: Urology Journal
https://www.readbyqxmd.com/read/29282003/fluid-status-evaluation-by-inferior-vena-cava-diameter-and-bioimpedance-spectroscopy-in-pediatric-chronic-hemodialysis
#16
Xavier Torterüe, Laurène Dehoux, Marie-Alice Macher, Olivier Niel, Thérésa Kwon, Georges Deschênes, Julien Hogan
BACKGROUND: Evaluation of patient's dry weight remains challenging in chronic hemodialysis (HD) especially in children. Inferior Vena Cava (IVC) measurement was reported useful to assess fluid overload both in adults and children. METHODS: We performed a monocentric prospective study to evaluate the relation between predialytic IVC diameter measurements and hydration status evaluated by physicians and bioimpedance spectroscopy (BIS) and between IVC measurements and persistent hypertension...
December 28, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29276792/hydration-health-literacy-in-the-elderly
#17
Dominic Picetti, Stephen Foster, Amanda K Pangle, Amy Schrader, Masil George, Jeanne Y Wei, Gohar Azhar
BACKGROUND: Inadequate hydration in the elderly is associated with increased morbidity and mortality. However, few studies have addressed the knowledge of elderly individuals regarding hydration in health and disease. Gaps in health literacy have been identified as a critical component in health maintenance, and promoting health literacy should improve outcomes related to hydration associated illnesses in the elderly. METHODS: We administered an anonymous survey to community-dwelling elderly (n = 170) to gauge their hydration knowledge...
December 7, 2017: Nutrition and Healthy Aging
https://www.readbyqxmd.com/read/29276629/should-workers-avoid-consumption-of-chilled-fluids-in-a-hot-and-humid-climate
#18
REVIEW
Matt B Brearley
Despite provision of drinking water as the most common method of occupational heat stress prevention, there remains confusion in hydration messaging to workers. During work site interactions in a hot and humid climate, workers commonly report being informed to consume tepid fluids to accelerate rehydration. When questioned on the evidence supporting such advice, workers typically cite that fluid absorption is delayed by ingestion of chilled beverages. Presumably, delayed absorption would be a product of fluid delivery from the gut to the intestines, otherwise known as gastric emptying...
December 2017: Safety and Health At Work
https://www.readbyqxmd.com/read/29246433/clinical-utility-of-noninvasive-method-to-measure-specific-gravity-in-the-pediatric-population
#19
Jeanine E Hall, Pauline P Huynh, Ameer P Mody, Vincent J Wang
BACKGROUND: Clinicians rely on any combination of signs and symptoms, clinical scores, or invasive procedures to assess the hydration status in children. Noninvasive tests to evaluate for dehydration in the pediatric population are appealing. OBJECTIVE: The objective of our study is to assess the utility of measuring specific gravity of tears compared to specific gravity of urine and the clinical assessment of dehydration. METHODS: We conducted a prospective cohort convenience sample study, in a pediatric emergency department at a tertiary care children's hospital...
December 12, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29241593/rapid-differential-diagnosis-of-diabetes-insipidus-in-a-7-month-old-infant-the-copeptin-approach
#20
J Vergier, J Fromonot, A Alvares De Azevedo Macedo, A Godefroy, E Marquant, R Guieu, M Tsimaratos, R Reynaud
INTRODUCTION: Diabetes insipidus is characterized by hypoosmotic polyuria related to deficiency of arginine-vasopressin (AVP) secretion (central diabetes insipidus, CDI) or renal insensitivity to AVP (nephrogenic diabetes insipidus, NDI). The water deprivation test with assessment of AVP activity is currently the gold standard for differential diagnosis in patients presenting polyuria-polydipsia syndrome. Nevertheless, it can be dangerous without proper surveillance and its interpretation may be challenging...
January 2018: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
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