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Oral suspensions

Azzurra Agostini, Umberto Capasso Palmiero, Sara D A Barbieri, Monica Lupi, Davide Moscatelli
Ibuprofen (IBU) is a widespread drug used to treat both acute and chronic disorders. It is generally taken orally but the free drug can induce the irritation of the gastric mucosa due to its acid nature. In literature, different approaches have been adopted to prevent the release in the stomach, such as physical entrapment with film-coated tablets and drug-conjugates. Nevertheless, these solutions have many disadvantages, including the fast release of the drug and the difficulty to swallow the tablet, especially for children who may vomit or refuse the tablet...
March 8, 2018: Nanotechnology
H M Steinkamp, J D Hathaway-Schrader, M B Chavez, J D Aartun, L Zhang, T Jensen, A Shojaee Bakhtiari, K L Helke, D J Stumpo, A V Alekseyenko, C M Novince, P J Blackshear, K L Kirkwood
Tristetraprolin (TTP) is an RNA-binding protein that targets numerous immunomodulatory mRNA transcripts for degradation. Many TTP targets are key players in the pathogenesis of periodontal bone loss, including tumor necrosis factor-α. To better understand the extent that host immune factors play during periodontal bone loss, we assessed alveolar bone levels, inflammation and osteoclast activity in periodontal tissues, and immune response in draining cervical lymph nodes in TTP-deficient and wild-type (WT) mice in an aging study...
March 1, 2018: Journal of Dental Research
D Canistro, F Vivarelli, S Cirillo, A Soleti, B Albertini, N Passerini, G Merizzi, M Paolini
PURPOSE: We previously showed the positive effects of the new antioxidant molecule bis(1-hydroxy-2,2,6,6-tetramethyl-4-piperidinyl)-decandioate (IAC) in reducing basal hyperglycaemia and relieving glucose intolerance in a diabetes model. However, the chemical properties of IAC did not allow an efficient oral administration, thus representing the main failing of that study. Here, we tested the effect of a new oral delivery system based on solid lipid microparticles (SLMs) in a diabetes mouse model...
March 6, 2018: Journal of Endocrinological Investigation
Franco Pattarino, Greg Piepel, Maurizio Rinaldi
A paper by Foglio Bonda et al. published previously in this journal (2016, Vol. 83, pp. 175-183) discussed the use of mixture experiment design and modeling methods to study how the proportions of three components in an extemporaneous oral suspension affected the mean diameter of drug particles (Zave ). The three components were itraconazole (ITZ), Tween 20 (TW20), and Methocel® E5 (E5). This commentary addresses some errors and other issues in the previous paper, and also discusses an improved model relating proportions of ITZ, TW20, and E5 to Zave ...
March 3, 2018: European Journal of Pharmaceutical Sciences
Betty Gourdon, Xavier Declèves, Jean-Manuel Péan, Caroline Chemin
PURPOSE: Oral drug delivery using NPs is a current strategy for poorly absorbed molecules. It offers significant improvement in terms of bioavailability. However, the encapsulation of proteins and peptides in polymeric NPs is a challenge. Firstly, the present study focused on the double emulsion process in order to encapsulate the OXY peptide. Then the technique was challenged by a one-step simplified process, the simple emulsion. METHODS: In order to study the influence of formulation and process parameters, factorial experimental designs were carried on...
March 5, 2018: Pharmaceutical Research
Bunsei Yamamoto, Yusuke Suzuki, Takahisa Yonezu, Nanami Mizushima, Nobuo Watanabe, Takehito Sato, Shigeaki Inoue, Sadaki Inokuchi
Green tea leaves fermented with Aspergillus luchuensis var kawachii kitahara (Cha-Koji) are a health food containing live A. luchuensis. In this study, we examined the effects of Cha-Koji on the immune system and the enteric environment. First, we designed a clinical trial; after ingesting Cha-Koji daily for 28 days, blood parameters and the fecal composition of the participants were analyzed. Similarly, mice were administered (oral administration) with Cha-Koji suspension or its vehicle for 14 days. Thereafter, both humans and mice were examined by analyzing their immune cell phenotypes and intestinal microbiota...
March 2, 2018: Bioscience, Biotechnology, and Biochemistry
Lia Gore, Pamela R Kearns, Maria Lucia de Martino Lee, Carmino Antonio De Souza, Yves Bertrand, Nobuko Hijiya, Linda C Stork, Nack-Gyun Chung, Rocio Cardenas Cardos, Tapan Saikia, Franca Fagioli, Jong Jin Seo, Judith Landman-Parker, Donna Lancaster, Andrew E Place, Karen R Rabin, Mariana Sacchi, Rene Swanink, C Michel Zwaan
Purpose Safe, effective treatments are needed for pediatric patients with chronic myeloid leukemia in chronic phase (CML-CP). Dasatinib is approved for treatment of adults and children with CML-CP. A phase I study determined suitable dosing for children with Philadelphia chromosome-positive (Ph+) leukemias. Methods CA180-226/NCT00777036 is a phase II, open-label, nonrandomized prospective trial of patients < 18 years of age receiving dasatinib. There are three cohorts: (1) imatinib-resistant/intolerant CML-CP, (2) imatinib-resistant/intolerant CML in accelerated/blast phase or Ph+ acute lymphoblastic leukemia (n = 17), and (3) newly diagnosed CML-CP treated with tablets or powder for oral suspension...
March 2, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
Narendar Dudhipala, Goverdhan Puchchakayala
The cornerstone of this investigation is to determine the pharmacokinetic and histopathological behaviour of solid lipid nanoparticles of capecitabine (CB-SLNs) in 1,2-dimethylhydrazine (DMH) induced colon cancer. The nanoparticles were prepared by microemulsion method. CB-SLNs were characterized for an optimal system. The cytotoxicity of CB-SLNs was evaluated by using MTT assay method. Further, pharmacokinetic and histopathological behaviour of SLNs were studied in DMH induced colon cancer rats. The optimized nanoparticles have the particle size, zeta potential and entrapment efficiency of 145...
March 1, 2018: Drug Development and Industrial Pharmacy
James Barber, Lara E Harrup, Rhiannon Silk, Eva Veronesi, Simon Gubbins, Katarzyna Bachanek-Bankowska, Simon Carpenter
BACKGROUND: Culicoides biting midges (Diptera: Ceratopogonidae) are responsible for the biological transmission of internationally important arboviruses of livestock. In 2011, a novel Orthobunyavirus was discovered in northern Europe causing congenital malformations and abortions in ruminants. From field studies, Culicoides were implicated in the transmission of this virus which was subsequently named Schmallenberg virus (SBV), but to date no assessment of susceptibility to infection of field populations under standardised laboratory conditions has been carried out...
February 27, 2018: Parasites & Vectors
Y Yusha'u, U A Muhammad, M Nze, J M Egwuma, O J Igomu, M Abdulkadir
Flavonoids have been demonstrated to possess an anti-depressant effect and less adverse effects than tricyclic anti-depressants. For this reason, flavonoids in natural products have attracted growing attention. Rutin is a glycoside flavonoid which belongs to an important class of flavonoids, abundantly found in plants, such as buckwheat seeds, asparagus, red pepper, apples, citrus fruits and leaves of many herbs such as rosemary, dandelion or sage, and black and green tea.  It is a vital nutritional component of food stuff...
December 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
Elusa Scheibler, Renata Medina da Silva, Carlos Eduardo Leite, Maria Martha Campos, Maria Antonia Figueiredo, Fernanda Gonçalves Salum, Karen Cherubini
OBJECTIVE: Nystatin and chlorhexidine are extensively used in oral medicine; however, there is some controversy about the possibility of these drugs showing antagonism. To clarify this issue, this study investigated the efficacy and stability of nystatin and chlorhexidine in combination. DESIGN: An in vitro study was conducted to analyze the effect of nystatin and chlorhexidine combined on Candida albicans ATCC 18804, using the drugs mixed as a single formulation and as independent formulations used sequentially with different time intervals between them...
February 15, 2018: Archives of Oral Biology
Yunmei Song, Zen Whey Chin, David Ellis, Ei Mon Phyo Lwin, Sean Turner, Desmond Williams, Sanjay Garg
PURPOSE: Results of a study to determine the stability of an extemporaneously compounded minoxidil oral suspension under various temperature and stress conditions are reported. METHODS: Commercially available minoxidil tablets (10 mg) were crushed to a fine powder, and predetermined amounts of 2 suspending vehicles were added to produce a 1-mg/mL suspension, which was stored in glass bottles at room temperature (25 ± 2 °C) or in a refrigerator (4 ± 2 °C). To simulate daily patient use, 5 days weekly 1 bottle of the suspension was removed from refrigerated storage and shaken and 0...
March 1, 2018: American Journal of Health-system Pharmacy: AJHP
Yu Dai, Amanda Li Cheng Tan, Huan Chen, Pei Shi Ong, Xiaoqiang Xiang, Jinzhu Wu, Hai-Shu Lin
Desoxyrhapontigenin (DRG, 4-methoxyresveratrol or trans-3,5-dihydroxy-4'-methoxystilbene) is a naturally occurring resveratrol (RES) derivative with a variety of biological activities. To facilitate its further medicinal exploration, a reliable LC-MS/MS method was developed and validated for the quantification of DRG in rat plasma using heavy isotope labelled RES as an internal standard. The ESI was operated in its negative ion mode while DRG and RES were determined by multiple reaction monitoring (MRM) using precursor-to-product ion transitions of m/z 241...
February 13, 2018: Journal of Pharmaceutical and Biomedical Analysis
Ning Jiang, Bei-Yue Zhang, Li-Ming Dong, Jing-Wei Lv, Cong Lu, Qiong Wang, Lin-Xi Fan, Hong-Xia Zhang, Rui-Le Pan, Xin-Min Liu
Depression is a common, dysthymic, and psychiatric disorder, resulting in enormous social and economic burden. Dammarane sapogenins (DS), an active fraction from oriental ginseng, has shown antidepressant-like effects in chronic restraint rats and sleep interruption-induced mice, and the present study aimed to further confirm the antidepressant effects of DS in a model of chronic unpredictable mild stress (CUMS) and to explore the underlying mechanism. Oral administration of DS (20, 40, and 80 mg/kg) markedly improved depressant-like behaviors, increasing the sucrose intake in the sucrose preference test and reducing the latency in the novelty-suppressed feeding test, and decreasing the immobility time in both the tail suspension and forced swimming tests, compared with the CUMS mice...
February 22, 2018: Phytotherapy Research: PTR
Qiankun Cui, Qiuting Fu, Xinghong Zhao, Xu Song, Jiankang Yu, Yi Yang, Kai Sun, Lu Bai, Ye Tian, Shufan Chen, Renyong Jia, Yuanfeng Zou, Lixia Li, Xiaoxia Liang, Changliang He, Lizi Yin, Gang Ye, Cheng Lv, Guizhou Yue, Zhongqiong Yin
Rotavirus (RV), belonging to Reoviridae family, is the leading cause of acute severe viral diarrhea in children (under 5 years old) and infant animals worldwide. Although vaccines are commonly used to prevent infection, episodes of diarrhea caused by RV frequently occur. Thus, this study was conducted to determine whether resveratrol had protective effects against RV infection in piglets. Following pretreatment with resveratrol dry suspension through adding into the basal diet for 3 weeks, the piglets were orally challenged with RV...
2018: PloS One
Jiong Qin, Yi Wang, Xin-Fang Huang, Yu-Qin Zhang, Fang Fang, Yin-Bo Chen, Zhong-Dong Lin, Yan-Chun Deng, Fei Yin, Li Jiang, Ye Wu, Xiang-Shu Hu
BACKGROUND: This study aimed to assess efficacy and safety of oxcarbazepine (OXC) oral suspension in pediatric patients aged 2-5 years with partial seizures (PS) and/or generalized tonic-clonic seizures (GTCS) in real-world clinical practice in China. METHODS: This 26-week, prospective, single-arm, multicenter, observational study recruited pediatric patients aged 2-5 years with PS or GTCS suitable for OXC oral suspension treatment based on physicians' judgments from 11 medical centers in China...
February 20, 2018: World Journal of Pediatrics: WJP
Nilima T Pandya, Parva Jani, Jigar Vanza, Hemal Tandel
The aim of the current investigation was to develop solid lipid nanoparticles of olmesartan medoxomil using hot homogenization method to improve its oral bioavailability. Central composite design was applied to optimize the formulation variables; lipid X1 (Glyceryl monostearate) and surfactant X2 (Poloxamer: Tween 80). The particle sizes were in the nanometer range and spherical shaped for all prepared solid lipid nanoparticles formulations and the zeta potential absolute values were high, predicting good long-term stability...
February 9, 2018: Colloids and Surfaces. B, Biointerfaces
Mohamed F Zidan, Hany M Ibrahim, Mohsen I Afouna, Elsherbeny A Ibrahim
The aim of this study was to explore the feasibility of complexing the poorly water-soluble drug atorvastatin calcium (AC) with β-cyclodextrin (β-CD) based nanosponges (NS), which offer advantages of improving dissolution rate and eventually oral bioavailability. Blank NS were fabricated at first by reacting β-CD with the cross-linker carbonyldiimidazole at different molar ratios (1:2, 1:4 and 1:8), then NS of highest solubilization extent for AC were complexed with AC. AC loaded NS (AC-NS) were characterized for various physicochemical properties...
February 16, 2018: Drug Development and Industrial Pharmacy
Bingchao Cheng, Hao Pan, Dandan Liu, Dongyang Li, Jinyu Li, Shihui Yu, Guoxin Tan, Weisan Pan
The purpose of this work was to develop a D-α-tocopherol polyethylene glycol 1000 succinate (TPGS) decorated nanodiamond (ND) system loading water-insoluble curcumin (ND/CUR/TPGS) to improve the colloidal dispersity and oral bioavailability of the preparation. CUR was physically loaded into ND clusters, then TPGS was coated to the ND/CUR complex forming amorphous nanostructure on the interparticle nanocage of the ND substrate. The formulation of the nanocomplexes was optimized using response surface methodology, and the optimal ND/CUR/TPGS showed small particle size (196...
February 13, 2018: International Journal of Pharmaceutics
Ching-Chi Yen, Yi-Chen Chen, Ming-Tsang Wu, Chia-Chi Wang, Yu-Tse Wu
Background: Andrographolide (AG), a compound with low water solubility, possesses various pharmacological activities, particularly anti-inflammatory activity. However, its low oral bioavailability is a major obstacle to its potential use. This study developed and optimized an AG-loaded nanoemulsion (AG-NE) formulation to improve AG oral bioavailability and its protective effects against inflammatory bowel disease. Methods: A high-pressure homogenization technique was used to prepare the AG-NE and solubility, viscosity, and droplet size tests were conducted to develop the optimized AG-NE composed of α-tocopherol, ethanol, Cremophor EL, and water...
2018: International Journal of Nanomedicine
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