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https://www.readbyqxmd.com/read/28333668/development-of-extemporaneously-compounded-aripiprazole-oral-suspensions-for-use-in-children
#1
Lance A Pramann, Lawrence W Davidow, Leon van Haandel, Ryan S Funk
The purpose of this study was to develop extemporaneously compounded oral liquid formulations of aripiprazole for use in pediatric patients and those patients unable to swallow the solid oral dosage forms. Aripiprazole tablets(30 mg) were ground to a fine powder and suspended at a concentration of 1.0 mg/mL in either a 1:1 blend of Ora-Plus and Ora-Sweet, or 1% methylcellulose and Simple Syrup NF. Five amber, plastic liquid prescription bottles of each formulation were stored at 4°C, and aripiprazole content was measured by ultra-performance liquid chromatography time-of-flight mass spectrometry at 0, 14, 32, 67, and 91 days...
May 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28333666/extended-stability-of-morphine-and-sildenafil-for-oral-use-in-infants-and-young-children
#2
Milap C Nahata
Morphine and sildenafil are commercially available at high concentrations which may lead to errors in measuring small volumes to provide low doses needed in infants. The purpose of this study was to assess the stability of morphine sulfate and sildenafil citrate in extemporaneously prepared suspensions for oral use. Morphine (0.2 mg/mL) was prepared from dilution of morphine elixir (2 mg/mL) with distilled water and stored in amber, plastic syringes at 25°C for 60 days. The mean concentration of morphine exceeded 95% of the initial concentration for the entire 60-day study period...
May 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28333177/amelioration-of-citrobacter-rodentium-proliferation-in-early-stage-of-infection-in-mice-by-pre-treatment-with-lactobacillus-brevis-kb290-and-verification-using-in-vivo-bioluminescence-imaging
#3
Naoko Waki, Yuki Kuwabara, Yuko Yoshikawa, Hiroyuki Suganuma, Hiroyuki Koide, Naoto Oku, Norio Ohashi
Bioluminescent imaging (BLI) has become a useful tool for monitoring bacterial infections in real time. Citrobacter rodentium and its BLI are widely used as a murine model of enteropathogenic and enterohaemorrhagic Escherichia coli infection. In this study, we evaluated the protective effects of the probiotic Lactobacillus brevis KB290 against C. rodentium infection by the BLI approach. First, we examined several solutions for making the suspension of bioluminescent C. rodentium for an oral inoculation to establish a stable intestinal infection...
November 10, 2016: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28328020/detection-of-glutathione-conjugates-of-amiodarone-and-its-reactive-diquinone-metabolites-in-rat-bile-using-mass-spectrometry-tools
#4
Keyur R Parmar, Shalu Jhajra, Saranjit Singh
RATIONALE: Amiodarone is reported to cause hepato and pulmonary toxicity in humans, which has been envisaged to be due to formation of its reactive metabolites, essentially based on its structural similarity to benzbromarone, a drug withdrawn from the market due to reasons of similar hepatotoxicity. Therefore, the purpose of this study was to detect glutathione conjugates of amiodarone and its reactive diquinone metabolites in rat bile using mass spectrometry tools. METHODS: Wistar rats were dosed orally with an amiodarone suspension and bile was collected via bile duct cannulation followed by solid-phase extraction, protein precipitation and centrifugation...
May 30, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28324259/protective-effect-of-nigella-sativa-seeds-against-spermatocyte-chromosomal-aberrations-and-genotoxicity-induced-by-carbon-tetrachloride-in-mice
#5
Ashraf M Abdel-Moneim, Amina E Essawy, Sherifa S Hamed, Ashgan A Abou-Gabal, Aglal A Alzergy
Nigella sativa is a well-known dietary antioxidant and a valuable inhibitor of clastogenesis and carcinogenesis. The purpose of the present work was to investigate the effects of N. sativa seeds against chromosomal aberrations in primary spermatocytes and early embryonic lethality induced by CCl4 hepatotoxin in Swiss albino mice. One hundred male Swiss albino mice were randomly divided into five groups. Groups I, II, and III received only normal saline, olive oil, and aqueous suspension of N. sativa seeds (50 mg/kg b...
March 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28322165/anti-inflammatory-and-anti-arthritic-activity-of-different-milk-based-formulation-of-curcumin-in-rat-model
#6
Sumeet Gupta
Inflammation is the key mediator for arthritis. Plant based products are most useful for treating various disorders, but at the same time drug absorbtion is utmost important for effective therapy. The aim of the study was to find out the therapeutic concern in pharmacokinetic and pharmacodynamic parameters in an arthritis induced rat model. Carrageenan and complete Freud's adjuvant, both were used for an arthritis induction as an animal model. Five different formulations of curcumin were prepared in single toned milk, double toned milk, full fat milk, full fat milk with ghee and in an aqueous suspension...
March 20, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28315435/pharmacokinetic-study-of-solid-lipid-nanoparticles-of-altretamine-complexed-epichlorohydrin-%C3%AE-cyclodextrin-for-enhanced-solubility-and-oral-bioavailability
#7
Bina Gidwani, Amber Vyas
Altretamine is a synthetic drug approved for treatment of ovarian cancer. The only drawback with its formulation is poor aqueous solubility and low oral bioavailability. In the present work an attempt has been made to prepare inclusion complex of altretamine with epichlorohydrin beta cyclodextrin. The complexes were prepared by kneading, co-evaporation and freeze-drying method and were confirmed by FTIR, XRD, DSC, drug content and dissolution study. Kneaded complex posses maximum solubilizing efficiency of 82...
March 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28314177/gintonin-attenuates-depressive-like-behaviors-associated-with-alcohol-withdrawal-in-mice
#8
Hyeon-Joong Kim, Sang-Deuk Park, Ra Mi Lee, Byung-Hwan Lee, Sun-Hye Choi, Sung-Hee Hwang, Hyewhon Rhim, Hyoung-Chun Kim, Seung-Yeol Nah
BACKGROUND: Panax ginseng Meyer extracts have been used to improve mood and alleviate symptoms of depression. However, little is known about the extracts' active ingredients and the molecular mechanisms underlying their reported anti-depressive effects. METHODS: Gintonin is an exogenous lysophosphatidic acid (LPA) receptor ligand isolated from P. ginseng. BON cells, an enterochromaffin cell line, and C57BL/6 mice were used to investigate whether gintonin stimulates serotonin release...
March 9, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28299825/fingolimod-gilenya-%C3%A2-in-multiple-sclerosis-bradycardia-atrioventricular-blocks-and-mild-effect-on-the-qtc-interval-something-to-do-with-the-l-type-calcium-channel
#9
Sylvie Pilote, Chantale Simard, Benoit Drolet
Cardiac arrhythmias and ECG abnormalities including bradycardia, prolongation of the QT interval and atrioventricular (AV) conduction blocks have been extensively observed with fingolimod, the first marketed oral drug for treating the relapsing-remitting form of multiple sclerosis. The present study was aiming to further elucidate the effects of fingolimod on cardiac electrophysiology at three different levels; 1) in vitro, 2) ex vivo and 3) in vivo. 1) Patch-clamp experiments in whole cell configuration were performed on Cav 1...
March 16, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28290734/quantitative-biokinetics-of-titanium-dioxide-nanoparticles-after-oral-application-in-rats-part-2
#10
Wolfgang G Kreyling, Uwe Holzwarth, Carsten Schleh, Ján Kozempel, Alexander Wenk, Nadine Haberl, Stephanie Hirn, Martin Schäffler, Jens Lipka, Manuela Semmler-Behnke, Neil Gibson
The biokinetics of a size-selected fraction (70nm median size) of commercially available and (48)V-radiolabeled [(48)V]TiO2 nanoparticles has been investigated in female Wistar-Kyoto rats at retention timepoints 1h, 4h, 24h and 7days after oral application of a single dose of an aqueous [(48)V]TiO2-nanoparticle suspension by intra-esophageal instillation. A completely balanced quantitative body clearance and biokinetics in all organs and tissues was obtained by applying typical [(48)V]TiO2-nanoparticle doses in the range of 30-80 μg•kg(-1) bodyweight, making use of the high sensitivity of the radiotracer technique...
March 14, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28290712/development-of-olmesartan-medoxomil-lipid-based-nanoparticles-and-nanosuspension-preparation-characterization-and-comparative-pharmacokinetic-evaluation
#11
Arun B, Narendar D, Kishan Veerabrahma
The aim was to enhance the oral bioavailability of olmesartan medoxomil (OM) by preparing solid lipid nanoparticles (SLNs) and comparing with nanosuspension (OM-NS). OM-SLNs and OM-NS were prepared by known methods. Prepared SLNs were evaluated for physical characters and in vivo pharmacokinetic (PK) performance in rats. OM-NS showed more than four-fold increase in the solubility. During DSC and XRD studies, drug incorporated in SLNs was found to be in amorphous form. The relative bioavailability of OM-SLN and OM-NS was 7...
March 14, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28289972/impact-of-laparoscopy-on-adherence-to-an-enhanced-recovery-pathway-and-readiness-for-discharge-in-elective-colorectal-surgery-results-from-the-perioperative-italian-society-registry
#12
Marco Braga, Felice Borghi, Marco Scatizzi, Giancarlo Missana, Marco Azzola Guicciardi, Stefano Bona, Ferdinando Ficari, Marianna Maspero, Nicolò Pecorelli
INTRODUCTION: Previous studies reported that laparoscopic surgery (LPS) improved postoperative outcomes in patients undergoing colorectal surgery within an enhanced recovery program (ERP). However, the effect of minimally invasive surgery on each ERP item has not been clarified, yet. The aim of this study is to assess the impact of LPS on adherence to ERP items and recovery as measured by time to readiness for discharge (TRD). METHODS: Prospectively collected data entered in an electronic Italian registry specifically designed for ERP were reviewed...
March 13, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28288290/effect-of-commonly-prescribed-liquid-medications-on-streptococcus-mutans-biofilm-an-in-vitro-study
#13
Samantha A Clark, LaQuia A Vinson, George Eckert, Richard L Gregory
OBJECTIVE: This study addressed the effect of pediatric liquid antibiotic medications on Streptococcus mutans UA159. These suspensions commonly contain sugars such as sucrose to make them more palatable for children. The study was designed to evaluate the effects of oral liquid antibiotics on Streptococcus mutans growth and biofilm formation. STUDY DESIGN: A 24 hour culture of S. mutans was treated with various concentrations of liquid medications commonly prescribed to children for odontogenic or fungal infections- amoxicillin, penicillin VK, clindamycin, and nystatin...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28274159/effect-of-spirulina-platensis-ingestion-on-the-abnormal-biochemical-and-oxidative-stress-parameters-in-the-pancreas-and-liver-of-alloxan-induced-diabetic-rats
#14
Ourida Aissaoui, Malek Amiali, Nora Bouzid, Khaled Belkacemi, Arezki Bitam
CONTEXT: Previous studies have shown that Spirulina platensis Gomont (Phormidiaceae) (SP) extract has beneficial effects on many disease conditions. The putative protective effects of SP were investigated in diabetic rats. OBJECTIVE: The current study investigates the antioxidant effects of SP in diabetic Wistar rats. MATERIALS AND METHODS: Alloxan monohydrate (150 mg/kg body weight) was intraperitoneally administrated to induce diabetes...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28274147/lipid-nanoparticles-of-zaleplon-for-improved-oral-delivery-by-box-behnken-design-optimization-in-vitro-and-in-vivoevaluation
#15
Narendar Dudhipala, Karthik Yadav Janga
PURPOSE: Zaleplon (ZL) is a hypnotic drug prescribed for the management of insomnia and convulsions. The oral bioavailability of ZL was low (∼30%) owing to poor water solubility and hepatic first-pass metabolism. The cornerstone of this investigation is to develop and optimize solid lipid nanoparticles (SLNs) of ZL with the aid of Box-Behnken design (BBD) to improve the oral bioavailability. METHODS: A design space with three formulation variables at three levels were evaluated in BBD...
March 9, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28271908/development-of-olmesartan-medoxomil-optimized-nanosuspension-using-box-behnken-design-to-improve-oral-bioavailability
#16
Nagaraj K, Narendar D, Kishan V
The aim of present investigation was to enhance the oral bioavailability of olmesartan medoxomil by improving its solubility and dissolution rate by preparing nanosuspension (OM-NS), using Box-Behnken design. In this, four factors were evaluated at three levels. Independent variables include: concentration of drug (X1), concentration of surfactant (X2), concentration of polymer (X3) and number of homogenization cycles (X4). Based on preliminary studies the size (Y1), zeta potential (Y2) and % drug release at 5min (Y3) were chosen as dependent responses...
March 8, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28271493/palatability-of-a-novel-oral-formulation-of-prednisone-in-healthy-young-adults
#17
Shasha Bai, Nathan Dormer, Catherine Shoults, Amanda Meyer, Carol D Pierce, Kathleen A Neville, Gregory L Kearns
OBJECTIVES: Prednisone is a widely used anti-inflammatory for a variety of conditions. While oral liquid formulations of prednisone enable weight-based dosing, children frequently find them to be objectionable due to bitter taste. This limitation of prednisone can adversely impact patient acceptance and may result in non-compliance. Efforts to mask flavours often result in poorly controlled, heterogeneous particle distributions and can provide ineffective taste masking. The present work utilized a novel drug delivery technology developed by Orbis Biosciences, Inc...
April 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28271210/feeding-preference-and-sub-chronic-effects-of-zno-nanomaterials-in-honey-bees-apis-mellifera-carnica
#18
Gordana Glavan, Tamara Milivojević, Janko Božič, Kristina Sepčić, Damjana Drobne
The extensive production of zinc oxide (ZnO) nanomaterials (NMs) may result in high environmental zinc burdens. Honeybees need to have special concern due to their crucial role in pollination. Our previous study indicated that low concentrations of ZnO NMs, corresponding to 0.8 mg Zn/mL, have a neurotoxic potential for honeybees after a 10-day oral exposure. Present study was designed to investigate the effect of a short, dietary exposure of honeybees to ZnO NMs at concentrations 0.8-8 mg Zn/mL on consumption rate, food preference, and two enzymatic biomarkers-a stress-related glutathione S-transferase (GST) and the neurotoxicity biomarker acetylcholinesterase (AChE)...
March 7, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28263834/evaluation-of-a-dynamic-dissolution-permeation-model-mutual-influence-of-dissolution-and-barrier-flux-under-non-steady-state-conditions
#19
Daniel Sironi, Mette Christensen, Jörg Rosenberg, Annette Bauer-Brandl, Martin Brandl
Combined dissolution/permeation testing is gaining increasing attention as an in vitro tool for predictive performance ranking of enabling oral formulations. The current aim was to study how in vitro drug permeation evolves under conditions, where the donor concentration is changing (non-steady state). To this end, a model case was construed: compacts of pure crystalline hydrocortisone methanolate (HC·MeOH) of slow release rates were prepared, and their dissolution and permeation determined simultaneously in a side-by-side setup, separated by a biomimetic barrier (Permeapad(®))...
March 2, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28261763/effects-of-selenium-nanoparticles-on-reproductive-performance-of-male-sprague-dawley-rats-at-supranutritional-and-nonlethal-levels
#20
Lujie Liu, Yudan He, Zhiping Xiao, Wenjing Tao, Jia Zhu, Bin Wang, Zixun Liu, Minqi Wang
This research investigated the influence of selenium nanoparticles (SeNPs) on the reproductive performance of male Sprague-Dawley (SD) rats. A suspension of SeNPs was consecutively administered by oral gavage for 2 weeks at supranutritional (0.2, 0.4, or 0.8 mg Se/kg bw) and nonlethal (2.0, 4.0, or 8.0 mg Se/kg bw) levels to male SD rats. The normal control (NC) rats were exposed to physiological saline alone. Biochemical parameters, sperm motility, gene expression of GPx1 and GPx4, and histopathological evaluation of male spermary were measured in this work...
March 6, 2017: Biological Trace Element Research
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