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https://www.readbyqxmd.com/read/29341461/effect-of-immediate-and-prolonged-glp-1-receptor-agonist-administration-on-uric-acid-and-its-kidney-clearance-post-hoc-analyses-of-four-clinical-trials
#1
Lennart Tonneijck, Marcel H A Muskiet, Mark M Smits, Petter Bjornstad, Mark H H Kramer, Michaela Diamant, Ewout J Hoorn, Jaap A Joles, Daniël H van Raalte
AIMS: To determine effects of glucagon-like peptide (GLP)-1 receptor agonists (RA) on uric acid (UA)-levels and kidney UA-clearance. MATERIAL AND METHODS: Post-hoc analyses of four controlled clinical trials, which assessed actions of GLP-1RA-administration on kidney physiology. Immediate effects of GLP-1RA exenatide-infusion versus placebo was determined in 9 healthy overweight males (Study-A) and in 52 overweight T2DM-patients (Study-B). Effects were also examined of 12-week long-acting GLP-1RA liraglutide versus placebo in 36 overweight T2DM-patients (Study-C) and of 8-week short-acting GLP-1RA lixisenatide versus once-daily titrated insulin-glulisine in 35 overweight T2DM-patients (Study-D)...
January 17, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29340316/npt-iib-inhibition-does-not-improve-hyperphosphatemia-in-ckd
#2
Tobias E Larsson, Chisato Kameoka, Ikumi Nakajo, Yuta Taniuchi, Satoshi Yoshida, Tadao Akizawa, Ronald A Smulders
Introduction: Serum phosphate levels are insufficiently controlled in many patients with end-stage renal disease (ESRD), and novel therapeutic strategies are needed. Blocking intestinal phosphate absorption mediated by sodium-dependent phosphate co-transporter type 2b (NPT-IIb) holds promise; thus, we evaluated the efficacy, safety, tolerability, and pharmacokinetics of the novel and specific small molecule NPT-IIb inhibitor ASP3325 for the first time in humans. Methods: We conducted a randomized, double-blind, placebo-controlled, phase 1a single (n = 88) and multiple (n = 36) ascending dose study in healthy subjects, and a randomized, open-label, uncontrolled, phase 1b study in hyperphosphatemic ESRD patients on hemodialysis (single oral dose, n = 5; multiple oral doses, n = 17)...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29335615/marinobufagenin-is-related-to-elevated-central-and-24-h-systolic-blood-pressures-in-young-black-women-the-african-predict-study
#3
Michél Strauss, Wayne Smith, Wen Wei, Olga V Fedorova, Aletta E Schutte
Marinobufagenin (MBG) is an endogenous steroidal α1-Na+K+-ATPase inhibitor. Because of its role in sodium handling, MBG has been associated with both antihypertensive and prohypertensive effects in normal physiology and pathology. MBG is positively associated with blood pressure in Dahl salt-sensitive rats exhibiting a similar hypertensive phenotype to black populations, characterized by impaired urinary Na+ excretion. However, clinical studies exploring blood pressure (BP)-related effects of MBG in black populations are scant...
January 15, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29323234/caveolin-1-promotes-renal-water-and-salt-reabsorption
#4
Yan Willière, Aljona Borschewski, Andreas Patzak, Tatiana Nikitina, Carsten Dittmayer, Anna L Daigeler, Markus Schuelke, Sebastian Bachmann, Kerim Mutig
Caveolin-1 (Cav1) is essential for the formation of caveolae. Little is known about their functional role in the kidney. We tested the hypothesis that caveolae modulate renal salt and water reabsorption. Wild-type (WT) and Cav1-deficient (Cav1-/-) mice were studied. Cav1 expression and caveolae formation were present in vascular cells, late distal convoluted tubule and principal connecting tubule and collecting duct cells of WT but not Cav1-/- kidneys. Urinary sodium excretion was increased by 94% and urine flow by 126% in Cav1-/- mice (p < 0...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321686/effect-of-monitoring-salt-concentration-of-home-prepared-dishes-and-using-low-sodium-seasonings-on-sodium-intake-reduction
#5
Misako Nakadate, Junko Ishihara, Motoki Iwasaki, Kaori Kitamura, Erika Kato, Junta Tanaka, Kazutoshi Nakamura, Takuma Ishihara, Ayumi Shintani, Ribeka Takachi
BACKGROUND/OBJECTIVES: Objective methods such as the monitoring of salt concentrations in home-prepared dishes may be effective in reducing salt intake. We investigated the effect of monitoring the salt concentration of home-prepared dishes (Monitoring) on salt reduction and change in taste threshold, and the effect of the simultaneous use of low-sodium seasonings (Seasoning) to compare the effect of Monitoring with the conventional method. SUBJECTS/METHODS: We conducted a double-blind randomized controlled study using a 2 × 2 factorial design with two interventions...
January 10, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29318759/associations-of-sodium-and-potassium-with-obesity-measures-among-diverse-us-hispanic-latino-adults-results-from-the-hispanic-community-health-study-study-of-latinos
#6
Tali Elfassy, Yasmin Mossavar-Rahmani, Linda Van Horn, Marc Gellman, Daniela Sotres-Alvarez, Neil Schneiderman, Martha Daviglus, Jeannette M Beasley, Maria M Llabre, Pamela A Shaw, Guillermo Prado, Hermes Florez, Adina Zeki Al Hazzouri
OBJECTIVE: The objective of this study was to evaluate cross-sectional associations of sodium and potassium with BMI, waist circumference (WC), and body fat and to determine whether the nativity and/or duration of United States (US) residence modified these associations. METHODS: Sodium and potassium were derived from 24-hour diet recalls from 16,156 US participants of the 2008 to 2011 Hispanic Community Health Study/Study of Latinos (HCHS/SOL) and from 24-hour urine in 447 HCHS/SOL participants...
January 10, 2018: Obesity
https://www.readbyqxmd.com/read/29318638/voltage-gated-sodium-channels-nav-igating-the-field-to-determine-their-contribution-to-visceral-nociception
#7
Andelain Erickson, Annemie Deiteren, Andrea M Harrington, Sonia Garcia-Caraballo, Joel Castro, Ashlee Caldwell, Luke Grundy, Stuart M Brierley
Chronic visceral pain, altered motility and bladder dysfunction are common, yet poorly managed symptoms of functional and inflammatory disorders of the gastrointestinal and urinary tracts. Recently, numerous human channelopathies of the voltage-gated sodium (NaV ) channel family have been identified, which induce either painful neuropathies, an insensitivity to pain, or alterations in smooth muscle function. The identification of these disorders, in addition to the recent utilisation of genetically modified NaV mice and specific NaV channel modulators, has shed new light on how NaV channels contribute to the function of neuronal and non-neuronal tissues within the gastrointestinal tract and bladder...
January 9, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29313282/ertugliflozin-and-sitagliptin-co-initiation-in-patients-with-type-2-diabetes-the-vertis-sita-randomized-study
#8
Sam Miller, Tania Krumins, Haojin Zhou, Susan Huyck, Jeremy Johnson, Gregory Golm, Steven G Terra, James P Mancuso, Samuel S Engel, Brett Lauring
INTRODUCTION: Ertugliflozin is an oral sodium-glucose cotransporter 2 inhibitor that is being developed to treat type 2 diabetes mellitus (T2DM). This study assessed the efficacy and safety of co-initiation of ertugliflozin and sitagliptin compared with placebo in patients with T2DM inadequately controlled on diet and exercise. METHODS: In this phase III, randomized, double-blind, multicenter, placebo-controlled 26-week study (NCT02226003), patients with T2DM and glycated hemoglobin (HbA1c) 8...
January 8, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29310826/changes-in-v-atpase-subunits-of-human-urinary-exosomes-reflect-the-renal-response-to-acute-acid-alkali-loading-and-the-defects-in-distal-renal-tubular%C3%A2-acidosis
#9
Ganesh Pathare, Nasser A Dhayat, Nilufar Mohebbi, Carsten A Wagner, Ion A Bobulescu, Orson W Moe, Daniel G Fuster
In the kidney, final urinary acidification is achieved by V-ATPases expressed in type A intercalated cells. The B1 subunit of the V-ATPase is required for maximal urinary acidification, while the role of the homologous B2 subunit is less clear. Here we examined the effect of acute acid/alkali loading in humans on B1 and B2 subunit abundance in urinary exosomes in normal individuals and of acid loading in patients with distal renal tubular acidosis (dRTA). Specificities of B1 and B2 subunit antibodies were verified by yeast heterologously expressing human B1 and B2 subunits, and murine wild-type and B1-deleted kidney lysates...
January 6, 2018: Kidney International
https://www.readbyqxmd.com/read/29310825/potassium-intake-modulates-the-thiazide-sensitive-sodium-chloride-cotransporter-ncc-activity-via-the-kir4-1-potassium-channel
#10
Ming-Xiao Wang, Catherina A Cuevas, Xiao-Tong Su, Peng Wu, Zhong-Xiuzi Gao, Dao-Hong Lin, James A McCormick, Chao-Ling Yang, Wen-Hui Wang, David H Ellison
Kir4.1 in the distal convoluted tubule plays a key role in sensing plasma potassium and in modulating the thiazide-sensitive sodium-chloride cotransporter (NCC). Here we tested whether dietary potassium intake modulates Kir4.1 and whether this is essential for mediating the effect of potassium diet on NCC. High potassium intake inhibited the basolateral 40 pS potassium channel (a Kir4.1/5.1 heterotetramer) in the distal convoluted tubule, decreased basolateral potassium conductance, and depolarized the distal convoluted tubule membrane in Kcnj10flox/flox mice, herein referred to as control mice...
January 6, 2018: Kidney International
https://www.readbyqxmd.com/read/29306478/fibroblast-growth-factor-23-is-related-to-profiles-indicating-volume-overload-poor-therapy-optimization-and-prognosis-in-patients-with-new-onset-and-worsening-heart-failure
#11
Jozine M Ter Maaten, Adriaan A Voors, Kevin Damman, Peter van der Meer, Stefan D Anker, John G Cleland, Kenneth Dickstein, Gerasimos Filippatos, Pim van der Harst, Hans L Hillege, Chim C Lang, Marco Metra, Gerjan Navis, Leong Ng, Wouter Ouwerkerk, Piotr Ponikowski, Nilesh J Samani, Dirk J van Veldhuisen, Faiez Zannad, Aeilko H Zwinderman, Martin H de Borst
BACKGROUND: Fibroblast growth factor (FGF) 23 is a hormone that increases urinary phosphate excretion and regulates renal sodium reabsorption and plasma volume. We studied the role of plasma FGF23 in therapy optimization and outcomes in patients with new-onset and worsening heart failure (HF). METHODS: We measured plasma C-terminal FGF23 levels at baseline in 2399 of the 2516 patients included in the BIOlogy Study to Tailored Treatment in Chronic HF (BIOSTAT-CHF) trial...
February 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29306343/sodium-and-potassium-content-of-24-h-urinary-collections-a-comparison-between-field-and-laboratory-based-analysers
#12
Xuejun Yin, Bruce Neal, Maoyi Tian, Zhifang Li, Kristina Petersen, Yuichiro Komatsu, Xiangxian Feng, Yangfeng Wu
OBJECTIVE: Measurement of mean population Na and K intakes typically uses laboratory-based assays, which can add significant logistical burden and costs. A valid field-based measurement method would be a significant advance. In the current study, we used 24 h urine samples to compare estimates of Na, K and Na:K ratio based upon assays done using the field-based Horiba twin meter v. laboratory-based methods. DESIGN: The performance of the Horiba twin meter was determined by comparing field-based estimates of mean Na and K against those obtained using laboratory-based methods...
January 8, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/29305813/a-simultaneous-mixed-effects-pharmacokinetic-model-for-nefopam-n-desmethylnefopam-and-nefopam-n-oxide-in-human-plasma-and-urine
#13
Aravind Mittur
BACKGROUND AND OBJECTIVE: Nefopam is a non-opioid, non-steroidal, central analgesic thought to act via multiple mechanisms including potent inhibition of serotonin-norepinephrine reuptake and modulation of voltage-sensitive calcium and sodium channels. There has been a resurgence in its use for postoperative pain and neuropathic pain. Dosing route-dependent metabolism and clinical effects have been described following intravenous and oral nefopam. N-desmethylnefopam and nefopam N-oxide are metabolites of clinical interest...
January 5, 2018: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/29305116/urine-albumin-is-a-superior-predictor-of-preeclampsia-compared-to-urine-plasminogen-in-type-i-diabetes-patients
#14
Lise Hald Nielsen, Boye L Jensen, Jens Fuglsang, Lise Lotte Torvin Andersen, Dorte Møller Jensen, Jan Stener Jørgensen, Gitte Kitlen, Per Ovesen
Pregnant women with type I diabetes mellitus (T1DM) are at increased risk of developing preeclampsia (PE). Plasminogen is aberrantly filtrated from plasma into tubular fluid in PE patients and activated to plasmin. Plasmin activates the epithelial sodium channel in the collecting ducts potentially causing impaired sodium excretion, suppression of the renin-angiotensin-aldosterone system, and hypertension in PE. The objective of the study was to test whether urinary total plasmin(ogen)/creatinine ratio and plasma concentration of aldosterone were better predictors of PE in pregnant women with T1DM compared with urine albumin and haemoglobin A1C...
December 13, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29303781/association-of-sodium-intake-with-insulin-resistance-in-korean-children-and-adolescents-the-korea-national-health-and-nutrition-examination-survey-2010
#15
Yong Min Kim, So Hyun Kim, Young Suk Shim
BACKGROUND: This study aimed to evaluate the relationship between sodium intake and insulin resistance indices. METHODS: A total of 718 Korean children and adolescents (411 boys) aged 10-18 years who participated in the Korea National Health and Nutrition Examination Survey (KNHANES) were included in the study. The urinary sodium to urinary creatinine ratio was used as a surrogate for sodium intake. The homeostatic model assessment of insulin resistance (HOMA-IR) and the quantitative insulin sensitivity check index (QUICKI) were used as indices of insulin resistance...
January 5, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29301758/twenty-four-hour-urinary-potassium-excretion-but-not-sodium-excretion-is-associated-with-all-cause-mortality-in-a-general-population
#16
Yume Nohara-Shitama, Hisashi Adachi, Mika Enomoto, Ako Fukami, Eita Kumagai, Sachiko Nakamura, Shoko Kono, Nagisa Morikawa, Erika Nakao, Akiko Sakaue, Tomoko Tsuru, Yoshihiro Fukumoto
BACKGROUND: Few studies have examined the relationship between accurate monitoring of sodium or potassium consumption and mortality. We aimed to investigate the association between 24-hour urinary sodium or potassium excretion and ≈30-year mortality in a Japanese population using 24-hour urine collection. METHODS AND RESULTS: We enrolled a total of 1291 participants, aged 21 to 85 years, who underwent health checkups, including a blood test and 24-hour urine collection...
January 4, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29301371/the-sodium-glucose-cotransporter-2-inhibitor-dapagliflozin-prevents-renal-and-liver-disease-in-western-diet-induced-obesity-mice
#17
Dong Wang, Yuhuan Luo, Xiaoxin Wang, David J Orlicky, Komuraiah Myakala, Pengyuan Yang, Moshe Levi
Obesity and obesity related kidney and liver disease have become more prevalent over the past few decades, especially in the western world. Sodium-glucose cotransporter 2 (SGLT2) inhibitors are a new class of antidiabetic agents with promising effects on cardiovascular and renal function. Given SGLT2 inhibitors exert both anti-diabetic and anti-obesity effects by promoting urinary excretion of glucose and subsequent caloric loss, we investigated the effect of the highly selective renal SGLT2 inhibitor dapagliflozin in mice with Western diet (WD) induced obesity...
January 3, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29298567/sodium-excretion-and-associated-factors-in-urine-samples-of-african-descendants-in-alc%C3%A3-ntara-brazil-a-population-based-study
#18
Elisângela Milhomem Dos Santos, Dyego José de Araújo Brito, Isabela Leal Calado, Ana Karina Teixeira França, Joyce Santos Lages, Francisco das Chagas Monteiro Junior, Alcione Miranda Dos Santos, Natalino Salgado Filho
In most countries, salt intake has been excessive and constitutes one of the main risk factors for disease development, especially hypertension. Factors such as age, gender, sedentary lifestyle, smoking, African descent, obesity, dietary habits and family history of hypertension may be associated with high blood pressure. Studies show a positive association between the excretion of sodium and increased blood pressure. We evaluated the urinary excretion of sodium and associated factors in isolated urine samples of African descendants from remaining Quilombos...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29289939/neighbourhood-socioeconomic-status-and-cross-sectional-associations-with-obesity-and-urinary-biomarkers-of-diet-among-new-york-city-adults-the-heart-follow-up-study
#19
Tali Elfassy, Stella S Yi, Maria M Llabre, Neil Schneiderman, Marc Gellman, Hermes Florez, Guillermo Prado, Adina Zeki Al Hazzouri
OBJECTIVE: To determine whether neighbourhood socioeconomic status (SES) is associated with body mass index (BMI), waist circumference (WC) and biomarkers of diet (urinary sodium and potassium excretion). DESIGN: A cross-sectional study. SETTING: The data reported were from the 2010 Heart Follow-up Study, a population-based representative survey of 1645 adults. PARTICIPANTS: Community-dwelling diverse residents of New York City nested within 128 neighbourhoods (zip codes)...
December 29, 2017: BMJ Open
https://www.readbyqxmd.com/read/29282633/ertugliflozin-compared-with-glimepiride-in-patients-with-type-2-diabetes-mellitus-inadequately-controlled-on-metformin-the-vertis-su-randomized-study
#20
Priscilla Hollander, Jie Liu, Julie Hill, Jeremy Johnson, Zhi Wei Jiang, Gregory Golm, Susan Huyck, Steven G Terra, James P Mancuso, Samuel S Engel, Brett Lauring
INTRODUCTION: This study assessed the safety and efficacy of ertugliflozin (an oral sodium-glucose cotransporter 2 inhibitor) vs. glimepiride in patients with type 2 diabetes mellitus (T2DM) inadequately controlled on metformin. METHODS: This phase III, double-blind, non-inferiority study (NCT01999218) randomized patients with HbA1c ≥ 7.0% and ≤ 9.0% on stable metformin ≥ 1500 mg/day 1:1:1 to ertugliflozin 15 or 5 mg once-daily (QD), or glimepiride (titrated from 1 mg QD)...
December 27, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
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