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Ethamsylate

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https://www.readbyqxmd.com/read/27681773/micellar-hplc-method-for-simultaneous-determination-of-ethamsylate-and-mefenamic-acid-in-presence-of-their-main-impurities-and-degradation-products
#1
Fawzia Ibrahim, Mohie K Sharaf El-Din, Asmaa Kamal El-Deen, Kuniyoshi Shimizu
An eco-friendly sensitive, rapid and less hazardous micellar liquid chromatographic method was developed and validated for the simultaneous analysis of ethamsylate (ETM) and mefenamic acid (MFA) in the presence of hydroquinone (HQ) and 2,3-dimethylaniline (DMA) the main impurities of ETM and MFA, respectively. Good chromatographic separation was attained using Eclipse XDB-C8 column (150 mm × 4.6 mm, 5 μm particle size) adopting UV detection at 300 nm with micellar mobile phase consisting of 0.12 M sodium dodecyl sulfate, 0...
September 27, 2016: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/26291043/selected-mucolytic-anti-inflammatory-and-cardiovascular-drugs-change-the-ability-of-neutrophils-to-form-extracellular-traps-nets
#2
Marcin Zawrotniak, Andrzej Kozik, Maria Rapala-Kozik
Neutrophils form the first line of host defense against infections that combat pathogens using two major mechanisms, the phagocytosis or the release of neutrophil extracellular traps (NETs). The netosis (NET formation) exerts additional, unfavorable effects on the fitness of host cells and is also involved at the sites of lung infection, increasing the mucus viscosity and in the circulatory system where it can influence the intravascular clot formation. Although molecular mechanisms underlying the netosis are still incompletely understood, a role of NADPH oxidase that activates the production of reactive oxygen species (ROS) during the initiation of NETs has been well documented...
2015: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/25185424/ethamsylate-dicynone-interference-in-determination-of-serum-creatinine-uric-acid-triglycerides-and-cholesterol-in-assays-involving-the-trinder-reaction-in-vivo-and-in-vitro
#3
Milan Dastych, Ondrej Wiewiorka, Miroslava Benovská
BACKGROUND: The aim of our research was the quantification of interfering properties of the haemostatic drug Dicynone (ethamsylate) in serum creatinine, uric acid, cholesterol, and triglyceride assays using the Trinder reaction. METHODS: Blood from patients was collected before and 15 minutes after administration of 500 mg Dicynone dose i.v. and the above mentioned analytes were quantified using Roche assays (Cobas 8000). In our in vitro experiment, we measured concentrations of the analytes in pooled serum aliquots with final concentrations of Dicynone additions 0, 30, 60, 150, and 300 mg/L...
2014: Clinical Laboratory
https://www.readbyqxmd.com/read/24581515/the-phytotherapeutic-agent-eviprostat-suppresses-stromal-proliferation-and-inflammation-even-after-establishment-of-nonbacterial-prostatitis-in-the-rat-prostate
#4
Shinsuke Shibuya, Zhang Xia, Mikio Sugimoto, Nobufumi Ueda, Reiji Haba, Yoshiyuki Kakehi
OBJECTIVE: To evaluate the effect of phytotherapeutic agent, Eviprostat, administered after the establishment of nonbacterial prostatitis (NBP) on the stroma-to-epithelium ratio (S/E ratio), inflammatory scores, tissue macrophage infiltration, and cytokines and chemokines levels in prostate tissue and urine. MATERIALS AND METHODS: Ten-month-old male Wistar rats were castrated and exposed to 17-beta-isomer of estradiol for 30 days to induce NBP. Twenty-five NBP rats were divided into 5 groups: (1) NBP (0) rats sacrificed immediately after the establishment of NBP; (2,3) NBP (30)/control (CTL) and NBP (30)/Eviprostat (EVI) rats fed without or with 0...
March 2014: Urology
https://www.readbyqxmd.com/read/24327536/simultaneous-determination-of-some-dihydroxybenzenesulphonic-acid-derivatives-and-their-degradation-product-and-main-impurity-hydroquinone-by-ion-pair-liquid-chromatography
#5
M M Tolba
A simple and sensitive high-performance liquid chromatography method was developed and validated for the determination of calcium dobesilate (DOB) or ethamsylate (ETM) in the presence of their degradation product, hydroquinone (HQ). The analyses were carried out on Promosil C18 column (4.6 mM × 250 mM, 5 µm particle size) using an ion-pair mobile phase consisting of methanol-1.5 mM tetra-butyl ammonium bromide in 0.06 M phosphate buffer (25 : 75, v/v) at pH 6.0 with fluorescence detection at 286/333 nm...
November 2014: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/24000744/high-performance-liquid-chromatographic-determination-of-ethamsylate-in-urine-and-tablets
#6
Alaa El-Gindy, Mohammad Wafaa Nassar, Khalid Abdel-Salam Attia, Hamed Hamed Abu-Seada, Mahmoud El-Ghandour
A simple, selective, sensitive, accurate, and precise method was developed for determination of ethamsylate (ET) in human urine and in ET tablets using RP-HPLC. The method uses a C18 (5 pm particle size) column at ambient temperature with the mobile phase 14.7 mM potassium dihydrogen phosphate (pH 4.6)-8.15 mM tetraheptylammonium bromide in acetonitrile (50 + 50, v/v) at a flow rate of 1.0 mL/min. Quantitation was achieved with UV detection at 300 nm, based on peak area with a linear calibration curve in the concentration range of 0...
July 2013: Journal of AOAC International
https://www.readbyqxmd.com/read/23968273/intraventricular-haemorrhage-in-preterm-infants-can-we-improve-outcome-by-addressing-coagulation
#7
Amir A Kuperman, Benjamin Brenner, Gili Kenet
During the last few decades, the survival of preterm infants has increased dramatically. Nevertheless, with the increasing number of very young and extremely low birth weight infants, morbidity is still a major problem. Intraventricular Haemorrhage (IVH) is a major complication of preterm birth, and large haemorrhages or haemorrhages associated with parenchymal brain lesions may yield a high rate of future disability. IVH is a complex, multi-factorial disorder. Prematurity and low birth weight remain as its most important risk factors, affecting vulnerability of the germinal matrix as well as the coagulation system...
November 2015: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/23688203/strong-negative-interference-of-ethamsylate-dicynone%C3%A2-in-serum-creatinine-quantification-via-enzymatic-assay-using-trinder-reaction
#8
Ondrej Wiewiorka, Milan Dastych, Zdenka Čermáková
BACKGROUND: With discrepancies encountered as early as the verification of enzymatic method for quantification of serum creatinine, our research pointed to a later confirmed interference caused by a compound called ethamsylate present in the commonly used antihemorrhagic drug Dicynone. METHODS: We measured concentrations of creatinine of 10 patients with blood taken before and 15 minutes after the intravenous administration of a 500 mg dose of Dicynone. The creatinine concentration was determined using Jaffe method and enzymatic method that utilize Trinder reaction (Roche) in analyzer Cobas c 501 (Roche AG, Basel, Switzerland)...
August 2013: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/23452738/intraventricular-hemorrhage-in-preterm-infants-and-coagulation-ambivalent-perspectives
#9
REVIEW
Amir A Kuperman, Benjamin Brenner, Gili Kenet
Intraventricular hemorrhage (IVH) is a major complication of preterm birth, and large hemorrhages may yield significant future disability. During the last few decades, the survival of preterm infants has increased dramatically. Nevertheless, morbidity is still a major problem especially for very young and extremely low birth weight infants. As both, mortality and incidence of morbidities known to influence outcome, show a weekly decline with increasing gestational age, prematurity and low birth weight have been identified as major risk factors for IVH occurrence...
January 2013: Thrombosis Research
https://www.readbyqxmd.com/read/23440779/non-steroidal-anti-inflammatory-drugs-for-heavy-menstrual-bleeding
#10
REVIEW
Anne Lethaby, Kirsten Duckitt, Cindy Farquhar
BACKGROUND: Heavy menstrual bleeding (HMB) is an important cause of ill health in premenopausal women. Although surgery is often used as a treatment, a range of medical therapies are also available. Non-steroidal anti-inflammatory drugs (NSAIDs) reduce prostaglandin levels, which are elevated in women with excessive menstrual bleeding and also may have a beneficial effect on dysmenorrhoea. OBJECTIVES: The primary objective of this review was to investigate the effectiveness of NSAIDs in achieving a reduction in menstrual blood loss in women of reproductive years with HMB...
January 31, 2013: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/23143863/effect-of-the-phytotherapeutic-agent-eviprostat-on-the-bladder-in-a-rat-model-of-bladder-overdistension-emptying
#11
Yuko Kawai, Michiko Oka, Junko Kyotani, Tatsuya Oyama, Seiji Matsumoto, Hidehiro Kakizaki
AIMS: Ischemia-reperfusion injury is an important factor in the development of lower urinary tract symptoms (LUTS) that is partly mediated by the generation of free radicals. We investigate the effect of the phytotherapeutic agent Eviprostat, a treatment for benign prostatic hyperplasia (BPH) that has antioxidant and anti-inflammatory activity, on urinary bladder blood flow (BBF), and function in a rat model of bladder overdistension and emptying (OE). METHODS: For 8 days before surgery, OE rats received daily oral Eviprostat (36 mg/kg/day) or vehicle, while sham-operated animals received vehicle...
September 2013: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/23000860/improvement-by-phytotherapeutic-agent-of-detrusor-overactivity-down-regulation-of-pharmacological-receptors-and-urinary-cytokines-in-rats-with-cyclophosphamide-induced-cystitis
#12
COMPARATIVE STUDY
Sweety Nasrin, Eiji Masuda, Haruna Kugaya, Yoshihiko Ito, Shizuo Yamada
PURPOSE: We characterized pharmacological effects of the phytotherapeutic agent Eviprostat® on urodynamic parameters, bladder muscarinic and purinergic receptors, and urinary cytokines in rats with cyclophosphamide induced cystitis. MATERIALS AND METHODS: Urodynamic parameters in cyclophosphamide (150 mg/kg intraperitoneally) treated rats were measured by a cystometric method. Muscarinic and purinergic receptors in the bladder and other tissues were measured by radioreceptor assays using [N-methyl-(3)H]scopolamine methyl chloride and [(3)H]αβ-MeATP, respectively...
March 2013: Journal of Urology
https://www.readbyqxmd.com/read/22788836/short-term-efficacy-of-intravitreal-dobesilate-in-central-serous-chorioretinopathy
#13
Pedro Cuevas, Luis A Outeiriño, Carlos Azanza, Javier Angulo, Guillermo Giménez-Gallego
PURPOSE: To report the anatomic and functional outcome of intravitreal dobesilate to treat recurrent central serous chorioretinopathy (CSC). METHODS: This is an interventional case report in which dobesilate was intravitreally injected in a case of recurrent CSC. Main measures included fundoscopy, Snellen visual acuity (VA) testing, fluorescein angiography and optical coherence tomography (OCT). RESULTS: We present anatomical and functional evidences, obtained as early as eleven days after the treatment, of the efficacy of intravitreal dobesilate, in the treatment of chronic CSC condition...
2012: European Journal of Medical Research
https://www.readbyqxmd.com/read/22725604/editorial-comment-to-suppression-of-bladder-overactivity-and-oxidative-stress-by-the-phytotherapeutic-agent-eviprostat-in-a-rat-model-of-atherosclerosis-induced-chronic-bladder-ischemia
#14
EDITORIAL
Shizuo Yamada
No abstract text is available yet for this article.
July 2012: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/22458726/suppression-of-bladder-overactivity-and-oxidative-stress-by-the-phytotherapeutic-agent-eviprostat-in-a-rat-model-of-atherosclerosis-induced-chronic-bladder-ischemia
#15
Takahiro Matsui, Michiko Oka, Tomomi Fukui, Mitsushi Tanaka, Tatsuya Oyama, Koji Sagawa, Masanori Nomiya, Osamu Yamaguchi
OBJECTIVES: To clarify the mechanism by which chronic bladder ischemia causes bladder functional changes, and to investigate the involvement of oxidative stress and pro-inflammatory cytokines, and the effects of the phytotherapeutic drug, Eviprostat, on these biochemical marker levels and bladder function. METHODS: Male Sprague-Dawley rats aged 15 weeks were divided into three groups. Arterial injury was experimentally induced by balloon endothelial injury of the iliac arteries, and a 2% cholesterol diet was given for 8 weeks...
July 2012: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/22187395/intraventricular-hemorrhage-in-preterm-infants-coagulation-perspectives
#16
REVIEW
Amir A Kuperman, Gili Kenet, Emmanuel Papadakis, Benjamin Brenner
It has long been considered that a severe coagulation deficiency in premature newborns could be a major contributing factor in the occurrence of intraventricular hemorrhage (IVH). High-grade IVH has also been shown to coincide with severe derangement of coagulation in extremely low birth weight infants. This review focuses on the relevance of the physiologically developing immature hemostatic system to IVH, and the potential benefit of agents affecting hemostasis for IVH therapy or prevention in preterm infants...
October 2011: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/21624608/effect-of-the-phytotherapeutic-agent-eviprostat-on-inflammatory-changes-and-cytokine-production-in-a-rat-model-of-nonbacterial-prostatitis
#17
Hiroyuki Tsunemori, Mikio Sugimoto, Zhang Xia, Rikiya Taoka, Michiko Oka, Yoshiyuki Kakehi
OBJECTIVES: To examine the effect of the phytotherapeutic agent Eviprostat on the stromal-to-epithelial (S/E) ratio, level of macrophage infiltration, expression of the macrophage inhibitory cytokine-1 (Mic1) gene, and tumor necrosis factor-alpha (TNF-α) and interleukin-8 (IL-8) concentrations in prostate tissues in a rat model of nonbacterial prostatitis (NBP). MATERIALS AND METHODS: Ten-month old Wistar rats were divided into 4 groups of 10: (1) NBP non-mixed feed (prostatitis control group); (2) NBP Eviprostat (0...
June 2011: Urology
https://www.readbyqxmd.com/read/21347837/conventional-and-first-derivative-synchronous-fluorometric-determination-of-ethamsylate-in-pharmaceutical-preparations-and-biological-fluids-application-to-stability-studies
#18
Fathalla Belal, Amina El-Brashy, Nahed El-Enany, Manar Tolba
Two simple, accurate and highly sensitive spectrofluorometric methods were developed for the determination of ethamsylate (ETM). Method I is based on measuring the native fluorescence of ethamsylate in water at 354 nm after excitation at 302 nm. The calibration plot was rectilinear over the range of 0.05-1 μg/mL for ETM with limits of detection and quantitation of 7.9 and 26 ng/mL, respectively. Method II involved synchronous and first derivative synchronous fluorometric methods for the simultaneous determination of ethamsylate (ETM) and hydroquinone (HQ) which is considered as an impurity and/or acidic degradation product...
July 2011: Journal of Fluorescence
https://www.readbyqxmd.com/read/21254154/effect-of-a-phytotherapeutic-agent-eviprostat%C3%A2-on-prostatic-and-urinary-cytokines-chemokines-in-a-rat-model-of-nonbacterial-prostatitis
#19
Mikio Sugimoto, Michiko Oka, Hiroyuki Tsunemori, Motoki Yamashita, Yoshiyuki Kakehi
BACKGROUND: Chronic inflammation in the prostate has recently been recognized as an important component of the symptom progression of benign prostatic hyperplasia. The objective of this study was to evaluate a range of cytokines/chemokines in prostate tissue and urine to identify markers of prostate inflammation in a prostatitis model and to investigate the effect of a phytotherapeutic agent, Eviprostat®, on these markers. METHODS: Ten-month-old male Wistar rats were divided into four groups...
March 1, 2011: Prostate
https://www.readbyqxmd.com/read/21079346/application-and-equivalence-assessment-for-determining-ethamsylate-by-using-potassium-ferricyanide-as-spectroscopic-probe-reagent
#20
Litao Liu, Jing Li, Quanmin Li
In this paper, a novel method has been established to determine ethamsylate using potassium ferricyanide as a spectroscopic probe reagent. It has been demonstrated that Fe(III) is reduced to Fe(II) by ethamsylate, and that the formed Fe(II) reacts with potassium ferricyanide to form soluble prussian blue (KFe(III)[Fe(II)(CN)(6)]). Beer's law is obeyed in the range of 0.16 - 24.00 µg mL(-1) with the molar absorption coefficient of 2.1 × 10(4) L mol(-1) cm(-1). The detection limit (3 σ/k) is 0.11 µg mL(-1)...
2010: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
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