keyword
MENU ▼
Read by QxMD icon Read
search

urine osmolarity

keyword
https://www.readbyqxmd.com/read/29934667/comparison-of-the-effects-of-tolvaptan-and-furosemide-on-renal-water-and-sodium-excretion-in-patients-with-heart-failure-and-advanced-chronic-kidney-disease-a-subanalysis-of-the-k-star-study
#1
Naoto Tominaga, Keisuke Kida, Takayuki Inomata, Naoki Sato, Tohru Izumi, Yoshihiro J Akashi, Yugo Shibagaki
BACKGROUND: Tolvaptan (TLV) is known to increase electrolyte-free water clearance. However, TLV actions on renal electrolytes including urine sodium (uNa) excretion and its consequences are less well understood. This subanalysis investigated the effect of add-on TLV compared to increased furosemide (FUR) on both electrolyte-free water and electrolyte clearance in patients with congestive heart failure (CHF) complicated by advanced chronic kidney disease (CKD). METHODS: The Kanagawa Aquaresis Investigators Trial of TLV on HF Patients with Renal Impairment (K-STAR) was a multicenter, open-labeled, randomized, and controlled prospective clinical study...
June 22, 2018: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29739889/farnesoid-x-receptor-is-essential-for-the-survival-of-renal-medullary-collecting-duct-cells-under-hypertonic-stress
#2
Sujuan Xu, Shizheng Huang, Zhilin Luan, Tingyue Chen, Yuanyi Wei, Miaomiao Xing, Yaqing Li, Chunxiu Du, Bing Wang, Feng Zheng, Nanping Wang, Youfei Guan, Jan-Åke Gustafsson, Xiaoyan Zhang
Hypertonicity in renal medulla is critical for the kidney to produce concentrated urine. Renal medullary cells have to survive high medullary osmolarity during antidiuresis. Previous study reported that farnesoid X receptor (FXR), a nuclear receptor transcription factor activated by endogenous bile acids, increases urine concentrating ability by up-regulating aquaporin 2 expression in medullary collecting duct cells (MCDs). However, whether FXR is also involved in the maintenance of cell survival of MCDs under dehydration condition and hypertonic stress remains largely unknown...
May 22, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29671960/renal-potassium-handling-in-carriers-of-the-gly40ser-mutation-of-the-glucagon-receptor-suggests-a-role-for-glucagon-in-potassium-homeostasis
#3
Lise Bankir, Antonio Barbato, Ornella Russo, Gilles Crambert, Roberto Iacone, Nadine Bouby, Ludovica Perna, Pasquale Strazzullo
Plasma potassium concentration (PK ) is tightly regulated. Insulin is known to favor potassium entry into cells. But how potassium leaves the cells later on is not often considered. Previous studies in rats showed that glucagon infusion increased urinary potassium excretion dose-dependently and reversibly. This prompted us to investigate the possible influence of glucagon on potassium handling in humans. We took advantage of the Gly40Ser mutation of the glucagon receptor (GR) that results in a partial loss of function of the GR...
April 2018: Physiological Reports
https://www.readbyqxmd.com/read/29602293/swimming-exercise-demonstrates-advantages-over-running-exercise-in-reducing-proteinuria-and-glomerulosclerosis-in-spontaneously-hypertensive-rats
#4
COMPARATIVE STUDY
N L Totou, S S Moura, D B Coelho, E C Oliveira, L K Becker, W G Lima
Experimental studies in animal models have described the benefits of physical exercise (PE) to kidney diseases associated with hypertension. Land- and water-based exercises induce different responses in renal function. Our aim was to evaluate the renal alterations induced by different environments of PE in spontaneously hypertensive rats (SHRs). The SHRs were divided into sedentary (S), swimming exercise (SE), and running exercise (RE) groups, and were trained for 8 weeks under similar intensities (60 min/day)...
March 1, 2018: Physiology International
https://www.readbyqxmd.com/read/29541862/do-independent-geriatric-outpatients-with-nocturnal-polyuria-profit-from-desmopressin
#5
W Weinrebe, S Käbe-Frisch, I Füsgen, M Karaman, E Johannsdottir, S Rupp
OBJECTIVE: To compare the efficacy of desmopressin and placebo in independent geriatric outpatients with nocturnal polyuria (NP). METHODS: A prospective, randomized, single-center, national, double blind, placebo-controlled, fixed-dose, parallel group comparative trial was carried out. The study included 110 geriatric outpatients, 55 patients per treatment group using desmopressin acetate nasal spray (strength: 0.1 mg/ml) once daily of 10 μg/spray blast or placebo...
March 14, 2018: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/29476817/basal-tear-osmolarity-as-a-metric-to-estimate-body-hydration-and-dry-eye-severity
#6
REVIEW
C Willshire, A J Bron, E A Gaffney, E Ian Pearce
The osmolarities of various bodily fluids, including tears, saliva and urine, have been used as indices of plasma osmolality, a measure of body hydration, while tear osmolarity is used routinely in dry eye diagnosis, the degree of tear hyperosmolarity providing an index of disease severity. Systemic dehydration, due to inadequate water intake or excessive water loss is common in the elderly population, has a high morbidity and may cause loss of life. Its diagnosis is often overlooked and there is a need to develop a simple, bedside test to detect dehydration in this population...
May 2018: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/29399023/syndrome-of-inappropriate-antidiuretic-hormone-secretion-siadh-associated-with-mediastinal-schwannoma
#7
Shin Han Song, Gyeong Ah Sim, Seon Ha Baek, Jang Won Seo, Jung Weon Shim, Ja Ryong Koo
Syndrome of inappropriate antidiuretic hormone secretion (SIADH) is the most common cause of euvolemic hypo-osmotic hyponatremia. There are several etiologies of SIADH including neuroendocrine tumor, pulmonary disease, infection, trauma, and medications. Here, we report a case of SIADH associated with a schwannoma involving the mediastinum in a 75-year-old woman who presented with nausea, vomiting, and general weakness. Laboratory testing showed hypo-osmolar hyponatremia, with a serum sodium level of 102mmol/L, serum osmolality of 221mOsm/kg, urine osmolality of 382mOsm/kg, urine sodium of 55 mmol/L, and plasma antidiuretic hormone (ADH) of 4...
December 2017: Electrolyte & Blood Pressure: E & BP
https://www.readbyqxmd.com/read/29367255/hydration-and-obesity-among-outpatient-based-population-h2ob-study
#8
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/29341028/ameliorative-effects-of-zataria-multiflora-hydro-alcoholic-extract-on-gentamicin-induced-nephrotoxicity-in-rats
#9
Saeed Hajihashemi, Tahereh Jafarian, Mahboubeh Ahmadi, Ali Rahbari, Fatemeh Ghanbari
BACKGROUND: Nephrotoxicity is the major side effects of aminoglycoside antibiotics such as gentamicin. The aim of this study was to investigate the therapeutic effects of Z.multiflora (ZM) hydroalcoholic extract on gentamicin-induced nephrotoxicity. METHODS: Twenty-eight male Wistar rats categorized into four groups: 1) the control group without injection, 2) the gentamicin treated group (100 mg/kg, i.p) 3) the gentamicin and Z. Multiflora treated group; Z. Multiflora extract(0...
July 2018: Drug Research
https://www.readbyqxmd.com/read/29161752/prenatal-megacystis-is-prediction-of-outcome-and-renal%C3%A2-function-possible
#10
Regina Tschannen, Rita Gobet, Josef Wisser
Objective To assess prenatal prognostic criteria for fetuses with megacystis in order to counsel parents. Methods In a retrospective observational study at a single tertiary referral center, we assessed the clinical course of 53 fetuses with megacystis cared for at the Department of Obstetrics of the University Hospital Zurich between 1995 and 2008 and followed them up for 2 to 12 years. We determined fetal karyotype, amniotic fluid volume and fetal urinary biochemistry as prenatal prognostic factors...
November 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29140948/hypertonic-saline-resuscitation-after-emergent-laparotomy-and-temporary-abdominal-closure
#11
Tyler J Loftus, Philip A Efron, Trina M Bala, Martin D Rosenthal, Chasen A Croft, R Stephen Smith, Frederick A Moore, Alicia M Mohr, Scott C Brakenridge
BACKGROUND: Our objective was to establish the safety of 3% hypertonic saline (HTS) resuscitation for trauma and acute care surgery patients undergoing emergent laparotomy and temporary abdominal closure (TAC) with the hypothesis that HTS administration would be associated with hyperosmolar hypercholoremic acidosis, lower resuscitation volumes, and higher fascial closure rates, without adversely affecting renal function. METHODS: We performed a retrospective cohort analysis of 189 trauma and acute care surgery patients who underwent emergent laparotomy and TAC, comparing patients with normal baseline renal function who received 3% HTS at 30 mL/h (n = 36) to patients with standard resuscitation (n = 153) by baseline characteristics, resuscitation parameters, and outcomes including primary fascial closure and Kidney Disease: Improving Global Outcomes stages of acute kidney injury...
February 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28962237/can-tic-nanoparticles-produce-toxicity-in-oral-administration-to-rats
#12
Julie Laloy, Omar Lozano, Lütfiye Alpan, Jorge Mejia, Olivier Toussaint, Bernard Masereel, Jean-Michel Dogné, Stéphane Lucas
BACKGROUND: Titanium carbide (TiC) is used for ceramic metal composites in several industries and is regarded as a nanomaterial for catalyst and battery applications. However, there are very few studies in regard to the toxicological potential of TiC nanoparticles (NPs). OBJECTIVE: To study the toxicodynamics and toxicokinetics of TiC NPs in Sprague Dawley rats in acute (24 h) and subacute (28 days) oral administrations. The acute doses were 0.5, 5, 50, 300 and 1000 mg kg(-1); the subacute doses were 0...
2014: Toxicology Reports
https://www.readbyqxmd.com/read/28887070/decreased-serum-sodium-levels-predict-symptomatic-vasospasm-in-patients-with-subarachnoid-hemorrhage
#13
Yoichi Uozumi, Takashi Mizobe, Hirohito Miyamoto, Noriaki Ashida, Tsuyoshi Katsube, Shotaro Tatsumi, Mitsugu Nakamura, Eiji Kohmura
BACKGROUND: Symptomatic vasospasm is a major cause of morbidity and mortality in subarachnoid hemorrhage patients. Hyponatremia and dehydration due to natriuresis after subarachnoid hemorrhage are related to symptomatic vasospasm. Therefore, most institutions are currently targeting euvolemia and eunatremia in subarachnoid hemorrhage patients to avoid complications. We retrospectively investigated the predictors of symptomatic vasospasm with respect to water and sodium homeostasis, while maintaining euvolemia and eunatremia after subarachnoid hemorrhage...
December 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28812943/tear-osmolarity-is-sensitive-to-exercise-induced-fluid-loss-but-is-not-associated-with-common-hydration-measures-in-a-field-setting
#14
Justin J Holland, Michelle Ray, Christopher Irwin, Tina L Skinner, Michael Leveritt, Ben Desbrow
This investigation (i) examined changes in tear osmolarity in response to fluid loss that occurs with exercise in a field setting, and (ii) compared tear osmolarity with common field and laboratory hydration measures.  Sixty-three participants [age 27.8 ± 8.4 years, body mass 72.15 ± 10.61 kg] completed a self-paced 10 km run outside on a predetermined course. Body mass, tear fluid, venous blood and urine samples were collected immediately before and after exercise.  Significant (p < 0.001) reductions in body mass (1...
June 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28806208/systemic-hypotension-following-intravenous-administration-of-nonionic-contrast-medium-during-computed-tomography-iopromide-versus-iodixanol
#15
Gerlig Widmann, Reto Bale, Hanno Ulmer, Daniel Putzer, Peter Schullian, Franz-Josef Wiedermann, Wolfgang Lederer
BACKGROUND: In light of the increasing number of radiologic interventions performed under general anesthesia, the effects of contrast media (CM) on circulation and organ perfusion are of paramount importance. The objectives of this study were to systematically quantify effects on blood pressure, heart rate, and kidney function following intravenous administration of nonionic CM with normal and low osmolality. METHODS: In this controlled, double-blinded phase IV clinical trial, 40 consecutive patients were randomly assigned to receive repeated measures of either low-osmolar iopromide or iso-osmolar iodixanol...
March 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28673338/sustained-hyperosmolarity-increses-tgf-%C3%A3-1-and-egr-1-expression-in-the-rat-renal-medulla
#16
Miklós M Mózes, Petra Szoleczky, László Rosivall, Gábor Kökény
BACKGROUND: Although TGF-ß and the transcription factor Egr-1 play an important role in both kidney fibrosis and in response to acute changes of renal medullary osmolarity, their role under sustained hypo- or hyperosmolar conditions has not been elucidated. We investigated the effects of chronic hypertonicity and hypotonicity on the renal medullary TGF-ß and Egr-1 expression. METHODS: Male adult Sprague Dawley rats (n = 6/group) were treated with 15 mg/day furosemide, or the rats were water restricted to 15 ml/200 g body weight per day...
July 3, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28615247/lithium-induced-ndi-acetazolamide-reduces-polyuria-but-does-not-improve-urine-concentrating-ability
#17
MULTICENTER STUDY
Theun de Groot, Joan Doornebal, Birgitte M Christensen, Simone Cockx, Anne P Sinke, Ruben Baumgarten, Jennifer J Bedford, Robert J Walker, Jack F M Wetzels, Peter M T Deen
Lithium is the mainstay treatment for patients with bipolar disorder, but it generally causes nephrogenic diabetes insipidus (NDI), a disorder in which the renal urine concentrating ability has become vasopressin insensitive. Li-NDI is caused by lithium uptake by collecting duct principal cells and downregulation of aquaporin-2 (AQP2) water channels, which are essential for water uptake from tubular urine. Recently, we found that the prophylactic administration of acetazolamide to mice effectively attenuated Li-NDI...
September 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28580363/targeted-metabolomics-in-colorectal-cancer-a-strategic-approach-using-standardized-laboratory-tests-of-the-blood-and-urine
#18
Katarzyna J Jerzak, Marissa Laureano, Radwa Elsharawi, Peter Kavsak, Kelvin Kw Chan, Sukhbinder K Dhesy-Thind, Kevin Zbuk
BACKGROUND: Glycolytic markers have been detected in colorectal cancer (CRC) using advanced analytical methods. METHODS: Using commercially available assays, by-products of anaerobic metabolism were prospectively measured in the blood and urine of 20 patients with metastatic colorectal cancer (mCRC) and 20 patients with local disease. Twenty-four-hour urine citrate, plasma lactate, ketones, venous blood gas, anion gap, and osmolar gap were investigated. Results of patients with metastatic and local CRC were compared using two-sample t-tests or equivalent nonparametric tests...
2017: Hypoxia
https://www.readbyqxmd.com/read/28547260/ingestion-of-plant-secondary-compounds-causes-diuresis-in-desert-herbivores
#19
Denise M Dearing, Antonio M Mangione, William H Karasov
Plant secondary compounds are recognized deterrents and toxins to a variety of herbivores. The effect of secondary compounds on water balance of herbivores is virtually unexplored, yet secondary compounds could potentially cause a decrease in an animal's ability to maintain water balance. We investigated the effects of secondary compounds, alpha-pinene and creosote resin, on water balance in three species of herbivorous woodrats (Neotoma stephensi, N. albigula, N. lepida). In separate experiments, we measured the effect of these secondary compounds on voluntary water consumption, urine volume and urine osmolarity...
February 2002: Oecologia
https://www.readbyqxmd.com/read/28544917/effective-and-safe-mannitol-administration-in-patients-undergoing-supratentorial-tumor-surgery-a-prospective-randomized-and-double-blind-study
#20
RANDOMIZED CONTROLLED TRIAL
Eren Fatma Akcil, Ozlem Korkmaz Dilmen, Esra Sultan Karabulut, Serdar Selcuk Koksal, Fatis Altindas, Yusuf Tunali
OBJECTIVES: Although osmotic diuresis with mannitol is commonly used to provide brain relaxation, there is no consensus regarding its optimal dose and combination with loop diuretics. The aim of the present study is to evaluate the effects of mannitol and combination of furosemide with different doses of mannitol on brain relaxation and on blood electrolytes, lactate level, urine output, fluid balance and blood osmolarity in patients undergoing supratentorial tumor surgery. PATIENTS AND METHODS: This prospective, randomized, double blind, placebo-controlled study included 51 patients (ASA I-III) scheduled for elective supratentorial craniotomy...
August 2017: Clinical Neurology and Neurosurgery
keyword
keyword
163935
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"