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furosemide test

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https://www.readbyqxmd.com/read/28321052/saline-infusion-test-highly-associated-with-the-incidence-of-cardio-and-cerebrovascular-events-in-primary-aldosteronism
#1
Reiko Hayashi, Daisuke Tamada, Masahiko Murata, Kosuke Mukai, Tetsuhiro Kitamura, Michio Otsuki, Iichiro Shimomura
Primary aldosteronism (PA) is caused by excess secretion of aldosterone and is an independent risk factor for cardio-cerebro-vascular (CCV) events. The goal of treatment of PA should include prevention of CCV events. A definitive diagnosis of PA is established by confirmatory tests [saline infusion test (SIT), furosemide upright test (FUT) and captopril challenge test (CCT)]. However, there is no information on whether the hormone levels measured by these confirmatory tests are associated with CCV events. The aim of this retrospective study was to elucidate the relationship between the results of the above confirmatory tests and prevalence of CCV disease in patients with PA...
March 18, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28295526/pharmacological-treatments-in-asthma-affected-horses-a-pair-wise-and-network-meta-analysis
#2
L Calzetta, P Roncada, D di Cave, L Bonizzi, A Urbani, E Pistocchini, P Rogliani, M G Matera
BACKGROUND: Equine asthma is a disease characterised by reversible airflow obstruction, bronchial hyperresponsiveness and airway inflammation following exposure of susceptible horses to specific airborne agents. Although clinical remission can be achieved in a low-airborne dust environment, repeated exacerbations may lead to irreversible airway remodelling. The available data on the pharmacotherapy of equine asthma results from several small studies, and no head-to-head clinical trials have been conducted among the available medications...
March 10, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28287743/a-systematic-study-of-molecular-interactions-of-anionic-drugs-with-a-dimethylaminoethyl-methacrylate-copolymer-regarding-solubility-enhancement
#3
Wiebke Saal, Alfred Ross, Nicole Wyttenbach, Jochem Alsenz, Martin Kuentz
The methacrylate-copolymer Eudragit EPO (EPO) has raised interest in solubility enhancement of anionic drugs. Effects on aqueous drug solubility at rather low polymer concentrations are barely known despite their importance upon dissolution and dilution of oral dosage forms. We provide evidence for substantial enhancement (factor 4-230) of aqueous solubility of poorly water-soluble anionic drugs induced by low (0.1-5% (w/w)) concentration of EPO for a panel of seven acidic crystalline drugs. Diffusion data (determined by (1)H nuclear magnetic resonance spectroscopy) indicate that the solubility increasing effect monitored by quantitative ultraperformance liquid chromatography was caused primarily by molecular API polymer interactions in the bulk liquid phase...
March 21, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28228405/inhibition-of-romk-blocks-macula-densa-tubuloglomerular-feedback-yet-causes-renal-vasoconstriction-in-anesthetized-rats
#4
Magali Araujo, William J Welch, Xiaoyan Zhou, Kathleen Sullivan, Shawn Walsh, Alexander Pasternak, Christopher S Wilcox
The Na+/K+/2Cl- cotransporter (NKCC2) on the loop of Henle is the site of action of furosemide. Since outer medullary potassium channel (ROMK) inhibitors prevent reabsorption by NKCC2, we tested the hypothesis that ROMK inhibition with a novel, selective ROMK inhibitor (Compound C) blocks tubuloglomerular feedback (TGF) and reduces vascular resistance. Loop perfusion of either ROMK inhibitor or furosemide caused dose-dependent blunting of TGF, but the response to furosemide was 10-fold more sensitive (IC50= 10-6M for furosemide and IC50=10-5M for Compound C)...
February 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28131863/early-oxytocin-inhibition-of-salt-intake-after-furosemide-treatment-in-rats
#5
Sheri L Core, Kathleen S Curtis
Body fluid homeostasis requires a complex suite of physiological and behavioral processes. Understanding of the role of the central nervous system (CNS) in integrating these processes has been advanced by research employing immunohistochemical techniques to assess responses to a variety of body fluid challenges. Such techniques have revealed sex/estrogen differences in CNS activation in response to hypotension and hypernatremia. In contrast, it has been difficult to conclusively identify specific CNS areas and neurotransmitter systems that are activated by hyponatremia using these techniques...
January 25, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28123730/pseudocirrhosis-caused-by-regorafenib-in-an-advanced-rectal-cancer-patient-with-multiple-liver-metastases
#6
Kensuke Kumamoto, Shungo Endo, Noriyuki Isohata, Azuma Nirei, Daiki Nemoto, Kenichi Utano, Takuro Saito, Kazutomo Togashi
A 70-year-old man who was diagnosed with unresectable advanced rectal cancer with multiple liver metastases, received oxaliplatin-based treatment with bevacizumab as first-line chemotherapy and irinotecan-based treatment with bevacizumab as second-line chemotherapy for a total of 17 months. The patient was treated with regorafenib (160 mg/day for 3 weeks) as third-line chemotherapy. Following completion of one course of regorafenib treatment, the patient complained of abdominal distension. Computed tomography (CT) examination identified liver atrophy and massive ascites, while no such symptoms were observed prior to the regorafenib treatment...
January 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28114980/the-impact-of-torasemide-on-haemodynamic-and-neurohormonal-stress-and-cardiac-remodelling-in-heart-failure-tornado-a-study-protocol-for-a-randomized-controlled-trial
#7
Paweł Balsam, Krzysztof Ozierański, Agata Tymińska, Renata Główczyńska, Michał Peller, Anna Fojt, Andrzej Cacko, Bartosz Sieradzki, Elwira Bakuła, Maciej Markulis, Robert Kowalik, Zenon Huczek, Krzysztof J Filipiak, Grzegorz Opolski, Marcin Grabowski
BACKGROUND: Approximately 50% of heart failure patients are readmitted to hospital within 6 months, owing to deterioration of their condition. Thus, symptomatic treatment of heart failure requires significant improvement. The aim of this study is to compare the effects of torasemide and furosemide on biochemical parameters of haemodynamic and neurohormonal compensation, myocardial remodelling, clinical outcomes and quality of life in patients with chronic heart failure. METHODS: This is a multicentre, randomized, open, blinded endpoint phase-IV trial...
January 23, 2017: Trials
https://www.readbyqxmd.com/read/28090224/computerized-tomography-guided-paracentesis-an-effective-alternative-to-bedside-paracentesis
#8
Vinaya Gaduputi, Hassan Tariq, Chaitanya Chandrala, Sailaja Sakam, Naeem Abbas, Sridhar Chilimuri
BACKGROUND: Ascites remains the most common cause of hospitalization among patients with decompensated cirrhosis. Paracentesis is a relatively safe procedure with low complication rates. Computerized tomography (CT)-guided therapeutic paracentesis could be a safe and effective alternative to unaided or aided (ultrasonogram-guided) bedside paracentesis. In this retrospective study, we aimed to compare the efficacy, safety, and cost-effectiveness of CT-guided paracentesis with bedside paracentesis...
February 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28088572/bcs-class-iv-drugs-highly-notorious-candidates-for-formulation-development
#9
REVIEW
Rohan Ghadi, Neha Dand
BCS class IV drugs (e.g., amphotericin B, furosemide, acetazolamide, ritonavir, paclitaxel) exhibit many characteristics that are problematic for effective oral and per oral delivery. Some of the problems associated include low aqueous solubility, poor permeability, erratic and poor absorption, inter and intra subject variability and significant positive food effect which leads to low and variable bioavailability. Also, most of the class IV drugs are substrate for P-glycoprotein (low permeability) and substrate for CYP3A4 (extensive pre systemic metabolism) which further potentiates the problem of poor therapeutic potential of these drugs...
January 11, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28007722/physical-compatibility-of-isavuconazonium-sulfate-with-select-i-v-drugs-during-simulated-y-site-administration
#10
Wonhee So, Liz Kim, Abrar K Thabit, David P Nicolau, Joseph L Kuti
PURPOSE: The physical compatibility of isavuconazonium sulfate with 95 i.v. drugs during simulated Y-site administration was studied. METHODS: Isavuconazonium sulfate for injection and all other drugs were reconstituted according to the manufacturer's recommendation and further diluted with 0.9% sodium chloride injection or 5% dextrose injection to a final concentration (1.5 mg/mL for isavuconazonium sulfate and standard concentrations used clinically for other drugs)...
January 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/27994859/primary-sclerosing-cholangitis-a-new-cause-of-distal-renal-tubular-acidosis
#11
Valentin Goutaudier, Ilan Szwarc, Jean-Emmanuel Serre, Georges-Philippe Pageaux, Àngel Argilés, Jean Ribstein
We describe the first case of distal renal tubular acidosis (dRTA) associated with primary sclerosing cholangitis. A 26-year-old Lao-Thai male patient presented with severe jaundice, metabolic acidosis and hypokalaemia. He was diagnosed of dRTA. Liver transplantation resulted in correction of electrolyte disturbances and hyperbilirubinaemia. A fludrocortisone-furosemide test revealed normal urinary acidification, demonstrating no residual dRTA. This observation suggests that dRTA may be an early manifestation of bilirubin-associated nephropathy or the consequence of an immune mechanism...
December 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/27983775/carnitine-and-%C3%AE-butyrobetaine-stimulate-elimination-of-meldonium-due-to-competition-for-octn2-mediated-transport
#12
Edgars Liepinsh, Elina Makarova, Eduards Sevostjanovs, Dace Hartmane, Helena Cirule, Olga Zharkova-Malkova, Solveiga Grinberga, Maija Dambrova
Meldonium (3-(2,2,2-trimethylhydrazinium)propionate) is the most potent clinically used inhibitor of organic cation transporter 2 (OCTN2). Inhibition of OCTN2 leads to a decrease in carnitine and acylcarnitine contents in tissues and energy metabolism optimization-related cardioprotective effects. The recent inclusion of meldonium in the World Anti-Doping Agency List of Prohibited Substances and Methods has raised questions about the pharmacokinetics of meldonium and its unusually long elimination time. Therefore, in this study, the rate of meldonium washout after the end of treatment was tested with and without administration of carnitine, γ-butyrobetaine (GBB) and furosemide to evaluate the importance of competition for OCTN2 transport in mice...
December 16, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27980039/intracellular-calcium-mobilization-in-response-to-ion-channel-regulators-via-a-calcium-induced-calcium-release-mechanism
#13
Terry Petrou, Hervør L Olsen, Christopher Thrasivoulou, John R Masters, Jonathan F Ashmore, Aamir Ahmed
Free intracellular calcium ([Ca(2+)]i), in addition to being an important second messenger, is a key regulator of many cellular processes including cell membrane potential, proliferation, and apoptosis. In many cases, the mobilization of [Ca(2+)]i is controlled by intracellular store activation and calcium influx. We have investigated the effect of several ion channel modulators, which have been used to treat a range of human diseases, on [Ca(2+)]i release, by ratiometric calcium imaging. We show that six such modulators [amiodarone (Ami), dofetilide, furosemide (Fur), minoxidil (Min), loxapine (Lox), and Nicorandil] initiate release of [Ca(2+)]i in prostate and breast cancer cell lines, PC3 and MCF7, respectively...
February 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27856806/comparative-effectiveness-of-fourth-line-anti-hypertensive-agents-in-resistant-hypertension-a-systematic-review-and-meta-analysis
#14
REVIEW
Sarah-Jo Sinnott, Laurie A Tomlinson, Adrian A Root, Rohini Mathur, Kathryn E Mansfield, Liam Smeeth, Ian J Douglas
AIM: We assessed the effectiveness of fourth-line mineralocorticoid receptor antagonists in comparison with other fourth-line anti-hypertensive agents in resistant hypertension. METHODS AND RESULTS: We systematically searched Medline, EMBASE and the Cochrane library from database inception until January 2016. We included randomised and non-randomised studies that compared mineralocorticoid receptor antagonists with other fourth-line anti-hypertensive agents in patients with resistant hypertension...
November 17, 2016: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/27820705/use-of-stress-tests-in-evaluating-kidney-disease
#15
Jay L Koyner, Lakhmir S Chawla
PURPOSE OF REVIEW: The kidney, like most other organs, has a reserve capacity that can be utilized in times of increased physiologic demand. The ability to quantify this renal reserve function across various parts of the nephron (glomerular and tubular) has been an area of increased investigation over the past several years. In this review, we discuss several techniques that have been developed to interrogate the maximal physiologic capacity of the injured kidney. RECENT FINDINGS: Although protein loading has been established as an ideal method to investigate glomerular filtration capacity in healthy kidneys, other methods such as the antagonism of the renin-angiotensin-aldosterone system have demonstrated promise as a method to determine underlying glomerular disease in those with acute kidney injury and other comorbidities (e...
January 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27818782/randomized-pilot-trial-comparing-tolvaptan-with-furosemide-on-renal-and-neurohumoral-effects-in-acute-heart-failure
#16
Kentaro Jujo, Katsumi Saito, Issei Ishida, Yuho Furuki, Ahsung Kim, Yuki Suzuki, Haruki Sekiguchi, Junichi Yamaguchi, Hiroshi Ogawa, Nobuhisa Hagiwara
AIMS: Loop diuretics are first-line medications for congestive heart failure (CHF); however, they are associated with serious adverse effects, including decreased renal function, and sympathetic nervous and renin-angiotensin system activation. We tested whether tolvaptan, a vasopressin V2-receptor antagonist, could reduce unfavourable furosemide-induced effects during CHF treatment. METHODS AND RESULTS: Sixty patients emergently hospitalized owing to CHF-induced dyspnea were randomly assigned to receive either 40 mg intravenous furosemide daily or 7...
September 2016: ESC Heart Failure
https://www.readbyqxmd.com/read/27804100/rhabdomyolysis-after-coadministration-of-atorvastatin-and-sacubitril-valsartan-entresto%C3%A2-in-a-63-year-old-woman
#17
Eve S Faber, Madhavi Gavini, Ronald Ramirez, Richard Sadovsky
A 63-year-old woman previously stable on a regimen of atorvastatin 40 mg daily, carvedilol 25 mg twice daily, digoxin 0.125 mg daily, furosemide 40 mg daily, spironolactone 25 mg daily, rivaroxaban 15 mg daily, and enalapril 20 mg twice daily for heart failure developed rhabdomyolysis 26 days after enalapril was stopped and sacubitril/valsartan (Entresto™) started. The patient received sacubitril/valsartan at 24/26 mg twice daily for heart failure; however, after 26 days she developed muscle and skin pain...
December 2016: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/27753923/os-04-07-the-comparative-effectiveness-of-4th-line-anti-hypertensive-agents-in-patients-with-resistant-hypertension-a-meta-analysis
#18
Sarah-Jo Sinnott, Adrian Root, Rohini Mathur, Kathryn Mansfield, Laurie Tomlinson, Ian Douglas
OBJECTIVE: Recent evidence points to the effectiveness of spironolactone vs placebo in the treatment of resistant hypertension (RH). However, placebo is rarely a realistic treatment choice in uncontrolled hypertension. Using meta-analysis, we assessed the effectiveness of alternative 4 line anti-hypertensive agents in comparison to 4 line spironolactone/eplenerone in RH. DESIGN AND METHOD: Pubmed, EMBASE and the Cochrane library were systematically searched for randomised and non-randomised studies that compared any 4 line anti-hypertensive agent to spironolactone/eplenerone in RH...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27750234/clinical-factors-predicting-the-effect-of-tolvaptan-for-refractory-ascites-in-patients-with-decompensated-liver-cirrhosis
#19
Hirokazu Chishina, Satoru Hagiwara, Naoshi Nishida, Kazuomi Ueshima, Toshiharu Sakurai, Hiroshi Ida, Yasunori Minami, Masahiro Takita, Masashi Kono, Tomohiro Minami, Mina Iwanishi, Yasuko Umehara, Tomohiro Watanabe, Yoriaki Komeda, Tadaaki Arizumi, Masotoshi Kudo
OBJECTIVE: Refractory ascites reduces the quality of life of liver cirrhosis patients. Albumin preparation and diuretics, such as furosemide, have been used to treat refractory ascites, but the effect was poor in many patients. In this study, we analyzed patients treated with tolvaptan (TLV) at our hospital and investigated predictors of the effect. METHODS: The subjects were 70 patients for whom TLV was introduced to treat refractory ascites who could be analyzed between November 2013 and March 2015 at our hospital...
2016: Digestive Diseases
https://www.readbyqxmd.com/read/27725373/acth-stimulation-test-and-computed-tomography-are-useful-for-differentiating-the-subtype-of-primary-aldosteronism
#20
Ayako Moriya, Masaaki Yamamoto, Shunsuke Kobayashi, Tomoko Nagamine, Naomi Takeichi-Hattori, Mototsugu Nagao, Taro Harada, Kyoko Tanimura-Inagaki, Shiro Onozawa, Satoru Murata, Hideki Tamura, Izumi Fukuda, Shinichi Oikawa, Hitoshi Sugihara
The diagnostic steps for primary aldosteronism (PA) include case screening tests, confirmatory tests, and localization. The aim of this study was to identify useful confirmatory tests and their cut-off values for differentiating the subtype of primary aldosteronism, especially in unilateral PA, such as aldosterone-producing adenoma, and bilateral PA, such as idiopathic hyperaldosteronism. Seventy-six patients who underwent all four confirmatory tests, the captopril-challenge test (CCT), furosemide upright test (FUT), saline infusion test (SIT), and ACTH stimulation test (AST), and who were confirmed to have an aldosterone excess by adrenal venous sampling (AVS) were recruited...
October 1, 2016: Endocrine Journal
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