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Body water and electrolytes

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https://www.readbyqxmd.com/read/28167686/high-salt-diet-causes-osmotic-gradients-and-hyperosmolality-in-skin-without-affecting-interstitial-fluid-and-lymph
#1
Elham Nikpey, Tine V Karlsen, Natalia Rakova, Jens M Titze, Olav Tenstad, Helge Wiig
The common notion is that the body Na(+) is maintained within narrow limits for fluid and blood pressure homeostasis. Several studies have, however, shown that considerable amounts of Na(+) can be retained or removed from the body without commensurate water loss and that the skin can serve as a major salt reservoir. Our own data from rats have suggested that the skin is hypertonic compared with plasma on salt storage and that this also applies to skin interstitial fluid. Even small electrolyte gradients between plasma and interstitial fluid would represent strong edema-generating forces...
February 6, 2017: Hypertension
https://www.readbyqxmd.com/read/28145415/changes-in-serum-osmotic-pressure-following-haemodialysis-treatments-lead-to-changes-in-bioimpedance-spectroscopy-estimates-of-lean-and-adipose-tissue
#2
M Antonelou, S El-Kateb, N Davies, A Davenport
Haemodialysis (HD) patients are at risk of sarcopenia. Newer bioimpedance devices (BIS) using a three-compartmental body composition model, separate extracellular water overhydration from normo-hydrated lean tissue mass (LTM) and adipose tissue mass (ATM). During HD hydration status changes, along with changes in electrolytes and solutes, and may alter body composition measurements. As such, we measured BIS and serum osmotic pressure (sOP) pre- and post dialysis in 43 patients. There were no significant changes in LTM (39...
February 1, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28141711/an-8-year-old-boy-with-treatment-resistant-encopresis
#3
Martin T Stein, Marc A Benninga, Barbara T Felt
Paul is an 8-year-old boy with a long-standing history of encopresis and enuresis. Potty training was initiated when he was 2 years old. At this time, his mother was absent from the home for 6 weeks when she cared for her ill father in a different city. The process of teaching Paul to use the bathroom was described as "inconsistent" due to multiple caretakers.Paul never successfully mastered bowel and bladder control. He continues to wet and soil his clothes on a daily basis at home and school. According to his parents, he does not accept responsibility and comments about his soiling such as, "I didn't do it; someone else must have put it there...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28138765/low-dose-carperitide-%C3%AE-human-a-type-natriuretic-peptide-alleviates-hemoglobin-concentration-decrease-during-prolonged-oral-surgery-a-randomized-controlled-study
#4
Masanori Tsukamoto, Sayuri Koyama, Kanako Esaki, Takashi Hitosugi, Takeshi Yokoyama
PURPOSE: Surgical injury stimulates the renin-angiotensin-aldosterone system (RAAS) and causes antidiuresis, leading to postoperative oliguria. Carperitide (α-human A-type natriuretic peptide) is a cardiac peptide hormone secreted from the atrium. This peptide hormone enhances diuresis by suppressing the RAAS. In our experience, carperitide alleviates decreased hemoglobin (Hb) concentration during elective surgery. In the current study, we investigated the relationship between low-dose carperitide (0...
January 30, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28117000/vasopressin-and-related-peptides-potential-value-in-diagnosis-prognosis-and-treatment-of-clinical-disorders
#5
Ewa Szczepanska-Sadowska, Tymoteusz Zera, Piotr Sosnowski, Agnieszka Cudnoch-Jedrzejewska, Anna Puszko, Aleksandra Misicka
Vasopressin (AVP) and its receptors play a pivotal role in maintaining body homeostasis under physiological and pathophysiological conditions. As a consequence, the vasopressin system has emerged as an important target for both diagnostic and therapeutic applications in a number of medical conditions. Stoichiometric generation of AVP with copeptin, which is relatively accessible in the blood for measurements, makes copeptin a valuable surrogate of AVP. In this review, we present the regulation of release of AVP and activation of V1a, V1b, and V2 vasopressin receptors under physiological and pathological conditions...
January 19, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28104353/fluid-energy-and-nutrient-recovery-via-ad-libitum-intake-of-different-fluids-and-food
#6
Nadia Campagnolo, Elizaveta Iudakhina, Christopher Irwin, Matthew Schubert, Gregory R Cox, Michael Leveritt, Ben Desbrow
INTRODUCTION: This study compared the effects of ad libitum consumption of different beverages and foods on fluid retention and nutrient intake following exercise. METHODS: Ten endurance trained males (mean±SD; Age=25.3±4.9years, VO2max=63.0±7.2mL·kg·min(-1)) performed four trials employing a counterbalanced, crossover design. Following 60min of exercise (matched for energy expenditure and fluid loss) participants consumed either water (W1 and W2), a sports drink (Powerade® (P)) or a milk-based liquid meal supplement (Sustagen Sport® (SS)) over a four hour recovery period...
January 16, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28078240/effect-of-methanol-leaf-extract-of-dalbergia-saxatilis-hook-f-fabaceae-on-renal-function
#7
Fatima Ismail Hassan, Zezi Abdulkadir Umar, Danmalam Umar Habib, Yaro Abdullahi Hamza
OBJECTIVE: Dalbegia saxatilis (D.saxatilis) is used as a decoction in traditional medicine for ailments such as cough, small pox, skin lesions, bronchial ailments and toothache. This study is aimed at evaluating the toxic effect of methanol leaf extract of D.saxatilis on renal function. MATERIALS AND METHODS: Wistar rats of both sexes were divided into four groups of five: control animals (group 1) received distilled water 1 ml/kg while groups 2, 3 and 4 were given graded doses of the extract (250, 500 and 1000 mg/kg body weight, respectively) daily for 28 days...
November 2016: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/27932937/effect-of-electrolyzed-high-ph-alkaline-water-on-blood-viscosity-in-healthy-adults
#8
RANDOMIZED CONTROLLED TRIAL
Joseph Weidman, Ralph E Holsworth, Bradley Brossman, Daniel J Cho, John St Cyr, Gregory Fridman
BACKGROUND: Previous research has shown fluid replacement beverages ingested after exercise can affect hydration biomarkers. No specific hydration marker is universally accepted as an ideal rehydration parameter following strenuous exercise. Currently, changes in body mass are used as a parameter during post-exercise hydration. Additional parameters are needed to fully appreciate and better understand rehydration following strenuous exercise. This randomized, double-blind, parallel-arm trial assessed the effect of high-pH water on four biomarkers after exercise-induced dehydration...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27925707/natural-mineral-bottled-waters-available-on-the-polish-market-as-a-source-of-minerals-for-the-consumers-part-2-the-intake-of-sodium-and-potassium
#9
Anna Gątarska, Joanna Ciborska, Elżbieta Tońska
Background: Natural mineral waters are purchased and consumed according to consumer preferences and possible recommendations. The choice of appropriate water should take into account not only the general level of mineralization but also the content of individual components, including electrolytes such as sodium and potassium. Sodium is necessary to ensure the proper physiological functions of the body. It is defined as a health risk factor only when its excessive intake occurs. Potassium acts antagonistically towards sodium and calcium ions, contributes to a reduction of the volume of extracellular fluids and at the same time reduces muscle tension and permeability of cell membranes...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27899683/validation-of-an-integrative-mathematical-model-of-dehydration-and-rehydration-in-virtual-humans
#10
W Andrew Pruett, John S Clemmer, Robert L Hester
Water homeostasis is one of the body's most critical tasks. Physical challenges to the body, including exercise and surgery, almost always coordinate with some change in water handling reflecting the changing needs of the body. Vasopressin is the most important hormone that contributes to short-term water homeostasis. By manipulating vascular tone and regulating water reabsorption in the collecting duct of the kidneys, vasopressin can mediate the retention or loss of fluids quickly. In this study, we validated HumMod, an integrative mathematical model of human physiology, against six different challenges to water homeostasis with special attention to the secretion of vasopressin and maintenance of electrolyte balance...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27854090/effective-and-cheap-behavioral-modification-therapy-to-manage-complicated-polydipsia-and-seizures-in-a-chronic-mental-health-institute
#11
Yen-Wen Chen, Weilun Chung, Ching-Kuan Wu, Shih-Pin Hsu, Ping-Tao Tseng
PURPOSE: Polydipsia is one of the most serious and complicated problems causing morbidity and mortality in chronic mental health institutes. The pathophysiology of polydipsia in chronic schizophrenia remains unclear; as a result, no effective methods exist to deal with this serious problem. This report describes a patient with schizophrenia with polydipsia and seizures who benefitted from a behavioral modification program at a chronic mental health institute. CASE REPORT: A 56-year-old schizophrenic man did not have a history of physical illnesses or seizures and developed seizures following polydipsia...
June 15, 2016: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/27845866/a-canola-oil-supplemented-diet-prevents-type-i-diabetes-caused-lipotoxicity-and-renal-dysfunction-in-a-rat-model
#12
Edgar Cano-Europa, Rocio Ortiz-Butron, Estela Melendez Camargo, María Miriam Esteves-Carmona, Rosa Maria Oliart-Ros, Vanessa Blas-Valdivia, Margarita Franco-Colin
We investigated the effect of a canola oil-supplemented diet on the metabolic state and diabetic renal function of a type I diabetes experimental model. Male Sprague-Dawley rats were randomly divided into four groups: (1) normoglycemic+chow diet, (2) normoglycemic+a canola oil-supplemented chow diet, (3) diabetic+chow diet, and (4) diabetic+a canola oil-supplemented chow diet. For 15 weeks, animals were fed a diet of Purina rat chow alone or supplemented with 30% canola oil. Energetic intake, water intake, body weight, and adipose tissue fat pad were measured; renal function, electrolyte balance, glomerular filtration rate, and the plasmatic concentration of free fatty acids, cholesterol, triglycerides, and glucose were evaluated...
November 2016: Journal of Medicinal Food
https://www.readbyqxmd.com/read/27800480/post-exercise-rehydration-effect-of-consumption-of-beer-with-varying-alcohol-content-on-fluid-balance-after-mild-dehydration
#13
Annemarthe H C Wijnen, Jora Steennis, Milène Catoire, Floris C Wardenaar, Marco Mensink
PURPOSE: The effects of moderate beer consumption after physical activity on rehydration and fluid balance are not completely clear. Therefore, in this study, we investigated the effect of beer consumption, with varying alcohol content, on fluid balance after exercise-induced dehydration. METHODS: Eleven healthy males were included in this cross over study (age 24.5 ± 4.7 years, body weight 75.4 ± 3.3 kg, VO2max 58.3 ± 6.4 mL kg min(-1)). Subjects exercised on a cycle ergometer for 45 min at 60% of their maximal power output (Wmax) until mild dehydration (1% body mass loss)...
2016: Frontiers in Nutrition
https://www.readbyqxmd.com/read/27754289/br-08-1-high-sodium-intake-reduction-in-diabetes-with-hypertension
#14
Zhiming Zhu
Management of hypertension in diabetes is critical for reducing cardiovascular mortality and morbidity. Dietary approaches for controlling high blood pressure have historically focused on sodium. Thus, many guidelines recommend that patients with type 2 diabetes reduce high sodium intake. Nonetheless, the potential benefits of sodium reduction are debatable. The kidney has a crucial role in glucose filtration and reabsorption in addition to its regulation of fluid and electrolyte homeostasis. A key factor linking sodium uptake and glucose transport is the sodium-glucose cotransporter 2 (SGLT2) in renal proximal tubular cells...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754186/sp-04-1-the-role-of-natriuretic-peptides-in-the-pathogenesis-of-cardiovascular-diseases
#15
Zhanna Kobalava
The burden of cardiovascular diseases (CVD) in general and heart failure (HF) in particular continues to increase worldwide. CVD are major contributors to death and morbidity and recognized as important drivers of healthcare expenditure. Chronic overactivity of the renin-angiotensin-aldosterone system (RAAS) plays a key role in human hypertension and HF pathophysiology. RAAS is fundamental in the overall regulation of cardiovascular homeostasis through the actions of hormones, which regulate vascular tone, and specifically blood pressure through vasoconstriction and renal sodium and water retention...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27702914/tanshinone-iia-protects-against-pulmonary-arterial-hypertension-in-broilers
#16
Guoliang Hu, Yalu Song, Shanlin Ke, Huabin Cao, Caiying Zhang, Guangfu Deng, Fei Yang, Sihui Zhou, Pei Liu, Xiaoquan Guo, Ping Liu
This investigation was conducted to study the effects of tanshinone IIA (TIIA) on pulmonary arterial hypertension (PAH) in broilers. Two-hundred newly hatched Arbor Acre commercial broilers were randomly divided into 3 groups. All groups, with the exception of the control group (tap water), were given NaCl water (0.3%) starting on the d 15, and broilers in the protected group were fed a diet supplemented with TIIA (2.5 g/kg) starting on the d 15. On d 28, 35, 42, and 49, the ratio of the right ventricular weight to the total ventricular weight (RV: TV) and the values of other biochemical indicators for each group chickens were determined...
October 4, 2016: Poultry Science
https://www.readbyqxmd.com/read/27677366/changes-in-body-composition-following-haemodialysis-as-assessed-by-bioimpedance-spectroscopy
#17
K Tangvoraphonkchai, A Davenport
BACKGROUND/OBJECTIVES: Patients with chronic kidney disease treated by haemodialysis (HD) are at increased risk of sarcopenia. Bioelectrical impedance spectroscopy (BIS) can be used to determine body composition, and is one of the several potential screening tools for sarcopenia. The newer generation of portable hand-held devices can be readily used in dialysis centres. The results from BIS devices using a two-compartmental model of body composition can be affected by hydration status and so ideally measurements should be made when patients are not overhydrated...
February 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27643287/br-08-1-high-sodium-intake-reduction-in-diabetes-with-hypertension
#18
Zhiming Zhu
Management of hypertension in diabetes is critical for reducing cardiovascular mortality and morbidity. Dietary approaches for controlling high blood pressure have historically focused on sodium. Thus, many guidelines recommend that patients with type 2 diabetes reduce high sodium intake. Nonetheless, the potential benefits of sodium reduction are debatable. The kidney has a crucial role in glucose filtration and reabsorption in addition to its regulation of fluid and electrolyte homeostasis. A key factor linking sodium uptake and glucose transport is the sodium-glucose cotransporter 2 (SGLT2) in renal proximal tubular cells...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27643143/sp-04-1-the-role-of-natriuretic-peptides-in-the-pathogenesis-of-cardiovascular-diseases
#19
Zhanna Kobalava
The burden of cardiovascular diseases (CVD) in general and heart failure (HF) in particular continues to increase worldwide. CVD are major contributors to death and morbidity and recognized as important drivers of healthcare expenditure. Chronic overactivity of the renin-angiotensin-aldosterone system (RAAS) plays a key role in human hypertension and HF pathophysiology. RAAS is fundamental in the overall regulation of cardiovascular homeostasis through the actions of hormones, which regulate vascular tone, and specifically blood pressure through vasoconstriction and renal sodium and water retention...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27627089/-the-difference-and-ratio-between-serum-concentrations-of-natrium-and%C3%A2-chlorides-in-patients-with-hyponatremia
#20
Otto Schück, Miroslava Horáčková
UNLABELLED: The differential diagnosis of hyponatremia is often difficult. This most frequently occurring disorder of the water and electrolyte metabolism is frequently connected with deviations relating to the acid-base balance (ABB). This survey analyzes the relationship between the changes of the volume of body fluids and ABB and infers to what extent the analysis of combinations of the two disorders can support the differential diagnosis of different forms of hyponatremia (differentiation between the dilution vs...
2016: Vnitr̆ní Lékar̆ství
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