Highly Soluble Drugs Directly Granulated by Water Dispersions of Insoluble Eudragit® Polymers as a Part of Hypromellose K100M Matrix Systems.

Abstract:

:The aim of the present study was to investigate the suitability of insoluble Eudragit® water dispersions (NE, NM, RL, and RS) for direct high-shear granulation of very soluble levetiracetam in order to decrease its burst effect from HPMC K100M matrices. The process characteristics, ss-NMR analysis, in vitro dissolution behavior, drug release mechanism and kinetics, texture profile analysis of the gel layer, and PCA analysis were explored. An application of water dispersions directly on levetiracetam was feasible only in a multistep process. All prepared formulations exhibited a 12-hour sustained release profile characterized by a reduced burst effect in a concentration-dependent manner. No effect on swelling extent of HPMC K100M was observed in the presence of Eudragit®. Contrary, higher rigidity of formed gel layer was observed using combination of HPMC and Eudragit®. Not only the type and concentration of Eudragit®, but also the presence of the surfactant in water dispersions played a key role in the dissolution characteristics. The dissolution profile close to zero-order kinetic was achieved from the sample containing levetiracetam directly granulated by the water dispersion of Eudragit® NE (5% of solid polymer per tablet) with a relatively high amount of surfactant nonoxynol 100 (1.5%). The initial burst release of drug was reduced to 8.04% in 30 min (a 64.2% decrease) while the total amount of the released drug was retained (97.02%).

journal_name

Biomed Res Int

authors

Mašková E,Naiserová M,Kubová K,Mašek J,Pavloková S,Urbanová M,Brus J,Vysloužil J,Vetchý D

doi

10.1155/2019/8043415

subject

Has Abstract

pub_date

2019-03-05 00:00:00

pages

8043415

eissn

2314-6133

issn

2314-6141

journal_volume

2019

pub_type

杂志文章
  • Extraction and Characterization of Organ Components of the Malaysian Sea Cucumber Holothuria leucospilota Yielded Bioactives Exhibiting Diverse Properties.

    abstract::The aim of the present study was to extract and characterize bioactive components from separate body organs of Holothuria leucospilota. Preliminary qualitative assessment of the crude extracts was positive for phenols, terpenoids, carbohydrates, flavonoids, saponins, glycosides, cardiac glycosides, steroids, phlobatan...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2019/2640684

    authors: Ceesay A,Nor Shamsudin M,Aliyu-Paiko M,Ismail IS,Nazarudin MF,Mohamed Alipiah N

    更新日期:2019-04-15 00:00:00

  • Treatment of Large and Complicated Scalp Defects with Free Flap Transfer.

    abstract:Background:Large scalp defects, especially those complicated by calvarial defects, titanium mesh exposure, or cerebrospinal fluid (CSF) leak, pose a challenge for the neurosurgeon and plastic surgeon. Here, we describe our experience of reconstructing the complex scalp defect with free flap transfer. Methods:From Octo...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2020/2748219

    authors: Chen F,Ju H,Huang A,Yi Y,Cao Y,Xie W,Wang X,Fu G

    更新日期:2020-01-10 00:00:00

  • Photosystem II photochemistry and phycobiliprotein of the red algae Kappaphycus alvarezii and their implications for light adaptation.

    abstract::Photosystem II photochemistry and phycobiliprotein (PBP) genes of red algae Kappaphycus alvarezii, raw material of κ -carrageenan used in food and pharmaceutical industries, were analyzed in this study. Minimum saturating irradiance (I k) of this algal species was less than 115 μmol m(-2) s(-1). Its actual PSII effici...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2013/256549

    authors: Guan X,Wang J,Zhu J,Yao C,Liu J,Qin S,Jiang P

    更新日期:2013-01-01 00:00:00

  • Safety Assessment of Water-Extract Sericin from Silkworm (Bombyx mori) Cocoons Using Different Model Approaches.

    abstract::Sericin is a natural protein component of silks of silkworm and has potential utility in multiple areas such as pharmacological, cosmetics, and biotechnological industries. However, the understanding of its toxicological safety is still limited. This study evaluated the safety of water-extract sericin from silkworm (B...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2020/9689386

    authors: Qin H,Zhang J,Yang H,Yao S,He L,Liang H,Wang Y,Chen H,Zhao P,Qin G

    更新日期:2020-11-05 00:00:00

  • Pigment Epithelium-Derived Factor Induces Endothelial Barrier Dysfunction via p38/MAPK Phosphorylation.

    abstract::Endothelial barrier dysfunction, which is a serious problem that occurs in various inflammatory conditions, permits extravasation of serum components into the surrounding tissues, leading to edema formation and organ failure. Pigment epithelium-derived factor (PEDF), which is a major endogenous antagonist, has been im...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2015/791825

    authors: He T,Zhao L,Zhang D,Zhang Q,Jia J,Hu J,Huang Y

    更新日期:2015-01-01 00:00:00

  • Enhanced Production of Polymyxin E in Paenibacillus polymyxa by Replacement of Glucose by Starch.

    abstract::Polymyxin E or colistin, produced by Paenibacillus polymyxa, is an important antibiotic against Gram-negative pathogens. The objective of this study is to evaluate the effect of starch in fermentation medium on colistin biosynthesis in P. polymyxa. The results indicated that replacement of glucose by starch stimulated...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2018/1934309

    authors: Yu Z,Sun Z,Yin J,Qiu J

    更新日期:2018-10-14 00:00:00

  • Role of 99mTc-ECD SPECT in the management of children with craniosynostosis.

    abstract:PURPOSE OF THE REPORT:There is a paucity of data on correlation of various imaging modalities with clinical findings in craniosynostosis. Moreover, no study has specifically reported the role of (99m)Tc-ECD SPECT in a large number of subjects with craniosynostosis. MATERIALS AND METHODS:We prospectively analyzed a coh...

    journal_title:BioMed research international

    pub_type: 临床试验,杂志文章

    doi:10.1155/2014/172646

    authors: Barik M,Bajpai M,Das RR,Malhotra A,Panda SS,Sahoo MK,Dwivedi S

    更新日期:2014-01-01 00:00:00

  • Circulating Irisin Level and Thyroid Dysfunction: A Systematic Review and Meta-Analysis.

    abstract::Both thyroid hormones and irisin have profound influences on the metabolism of the human body. Based on their similarities, several studies have been conducted to explore changes in irisin levels in patients with hypothyroidism and hyperthyroidism. This study was conducted in accordance with the PRISMA statement and t...

    journal_title:BioMed research international

    pub_type: 杂志文章,评审

    doi:10.1155/2020/2182735

    authors: Shan D,Zou L,Liu X,Cai Y,Dong R,Hu Y

    更新日期:2020-10-28 00:00:00

  • Modic Changes and Disc Degeneration Caused by Inoculation of Propionibacterium acnes inside Intervertebral Discs of Rabbits: A Pilot Study.

    abstract:PURPOSE:To investigate whether P. acnes could induce disc degeneration and Modic changes when inoculated into the discs of rabbits. METHOD:A wild-type strain of P. acnes isolated from a patient associated with Modic change and disc degeneration was inoculated into the intervertebral discs of rabbits. Meanwhile, S. aur...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2016/9612437

    authors: Chen Z,Zheng Y,Yuan Y,Jiao Y,Xiao J,Zhou Z,Cao P

    更新日期:2016-01-01 00:00:00

  • Tumor-Selective Cytotoxicity of Nitidine Results from Its Rapid Accumulation into Mitochondria.

    abstract::We identified a nitidine- (NTD-) accumulating organelle and evaluated the net cytotoxicity of accumulated NTD. To evaluate tumor cell selectivity of the drug, we evaluated its selective cytotoxicity against 39 human cancer cell lines (JFCR39 panel), and the profile was compared with those of known anticancer drugs. Or...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2017/2130594

    authors: Iwasaki H,Inafuku M,Taira N,Saito S,Oku H

    更新日期:2017-01-01 00:00:00

  • Rheology as a Tool to Predict the Release of Alpha-Lipoic Acid from Emulsions Used for the Prevention of Skin Aging.

    abstract::The availability of an active substance through the skin depends basically on two consecutive steps: the release of this substance from the vehicle and its subsequent permeation through the skin. Hence, studies on the specific properties of vehicles, such as their rheological behavior, are of great interest in the fie...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2015/818656

    authors: Isaac VL,Chiari-Andréo BG,Marto JM,Moraes JD,Leone BA,Corrêa MA,Ribeiro HM

    更新日期:2015-01-01 00:00:00

  • Toxic damage increases angiogenesis and metastasis in fibrotic livers via PECAM-1.

    abstract::Excessive ethanol consumption is one of the main causes of liver fibrosis. However, direct effects of ethanol exposure on endothelial cells and their contribution to fibrogenesis and metastasis were not investigated. Therefore we analysed whether ethanol directly affects endothelial cells and if this plays a role duri...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2014/712893

    authors: Raskopf E,Gonzalez Carmona MA,Van Cayzeele CJ,Strassburg C,Sauerbruch T,Schmitz V

    更新日期:2014-01-01 00:00:00

  • Evaluation of the Therapeutic Effect of a Flavonoid Prescription against Rabbit Hemorrhagic Disease In Vivo.

    abstract::Rabbit hemorrhagic disease (RHD) is an acute, high fatal contagious disease induced by rabbit hemorrhagic disease virus (RHDV) with acute severe hepatic injury and causes huge economic loss worldwide. In order to develop an effective and reliable drug to treat this disease in clinic, a prescription formulated with bai...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2019/5201790

    authors: Du H,Zhang S,He M,Ming K,Wang J,Yuan W,Qiao M,Wu Y,Wang D,Hu Y,Liu J

    更新日期:2019-04-04 00:00:00

  • Strongyloidiasis in Africa: Systematic Review and Meta-Analysis on Prevalence, Diagnostic Methods, and Study Settings.

    abstract:Background:Strongyloidiasis is an intestinal parasitic infection mainly caused by Strongyloides stercoralis. Although it is a predominant parasite in tropics and subtropics where sanitation and hygiene are poorly practiced, the true prevalence of strongyloidiasis is not known due to low-sensitivity diagnostic methods. ...

    journal_title:BioMed research international

    pub_type: 杂志文章,评审

    doi:10.1155/2020/2868564

    authors: Hailu T,Nibret E,Amor A,Munshea A

    更新日期:2020-11-15 00:00:00

  • miR-940 Suppresses Tumor Cell Invasion and Migration via Regulation of CXCR2 in Hepatocellular Carcinoma.

    abstract::Aim. To investigate the expression of miR-940 in the hepatocellular carcinoma (HCC) and its impact on function and biological mechanism in the HCC cells. Methods. Quantitative RT-PCR analysis was used to quantify miR-940 expression in 46 cases of tissues and cells. Transfection of HCC cell lines was performed by miR-9...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2016/7618342

    authors: Ding D,Zhang Y,Yang R,Wang X,Ji G,Huo L,Shao Z,Li X

    更新日期:2016-01-01 00:00:00

  • Distinct action of flavonoids, myricetin and quercetin, on epithelial Cl⁻ secretion: useful tools as regulators of Cl⁻ secretion.

    abstract::Epithelial Cl(-) secretion plays important roles in water secretion preventing bacterial/viral infection and regulation of body fluid. We previously suggested that quercetin would be a useful compound for maintaining epithelial Cl(-) secretion at a moderate level irrespective of cAMP-induced stimulation. However, we n...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2014/902735

    authors: Sun H,Niisato N,Nishio K,Hamilton KL,Marunaka Y

    更新日期:2014-01-01 00:00:00

  • Personalized Medicine Based on Theranostic Radioiodine Molecular Imaging for Differentiated Thyroid Cancer.

    abstract::Molecular imaging based personalized therapy has been a fascinating concept for individualized therapeutic strategy, which is able to attain the highest efficacy and reduce adverse effects in certain patients. Theranostics, which integrates diagnostic testing to detect molecular targets for particular therapeutic moda...

    journal_title:BioMed research international

    pub_type: 杂志文章,评审

    doi:10.1155/2016/1680464

    authors: Ahn BC

    更新日期:2016-01-01 00:00:00

  • How to Stimulate Myocardial Regeneration in Adult Mammalian Heart: Existing Views and New Approaches.

    abstract::Stem cell-based therapy has been considered as a promising option in the treatment of ischemic heart disease. Although stem cell administration resulted in the temporary improvement of myocardial contractility in the majority of studies, the formation of new cardiomyocytes within the injured myocardium has not been co...

    journal_title:BioMed research international

    pub_type: 杂志文章,评审

    doi:10.1155/2020/7874109

    authors: Belostotskaya G,Hendrikx M,Galagudza M,Suchkov S

    更新日期:2020-03-03 00:00:00

  • Identification of Biomarkers to Construct a Competing Endogenous RNA Network and Establishment of a Genomic-Clinicopathologic Nomogram to Predict Survival for Children with Rhabdoid Tumors of the Kidney.

    abstract::Rhabdoid tumor of the kidney (RTK) is a rare and severely malignant tumor occurring in infancy and early childhood, with the overall outcomes remain poor. Neither gene regulatory networks nor biomarkers to predict the prognostic outcomes have been elucidated in RTK. In this study, RNA sequencing data were obtained to ...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2020/5843874

    authors: Wang X,Wu X,Li T,Cui M,Zhu L,Wang G,Guo F

    更新日期:2020-08-26 00:00:00

  • Proteoglycan aggrecan conducting T cell activation and apoptosis in a murine model of rheumatoid arthritis.

    abstract::Rheumatoid arthritis (RA) is a systemic autoimmune disease and its targeting of the joints indicates the presence of a candidate autoantigen(s) in synovial joints. Patients with RA show immune responses in their peripheral blood to proteoglycan (PG) aggrecan. One of the most relevant animal models of RA appears to be ...

    journal_title:BioMed research international

    pub_type: 杂志文章,评审

    doi:10.1155/2014/942148

    authors: Hanyecz A,Olasz K,Tarjanyi O,Nemeth P,Mikecz K,Glant TT,Boldizsar F

    更新日期:2014-01-01 00:00:00

  • The best choice of treatment for acute colonic diverticulitis with purulent peritonitis is uncertain.

    abstract::Severe stages of acute, colonic diverticulitis can progress into intestinal perforations with peritonitis. In such cases, urgent treatment is needed, and Hartmann's procedure is the standard treatment for cases with fecal peritonitis. Peritoneal lavage may be an alternative to resection for acute diverticulitis with p...

    journal_title:BioMed research international

    pub_type: 杂志文章,评审

    doi:10.1155/2014/380607

    authors: Hupfeld L,Burcharth J,Pommergaard HC,Rosenberg J

    更新日期:2014-01-01 00:00:00

  • Microscopic Monitoring of Erythrocytes Deformation under Different Shear Stresses Using Computerized Cone and Plate Flow Chamber: Analytical Study of Normal Erythrocytes and Iron Deficiency Anemia.

    abstract::Erythrocytes deformation is one of the exciting properties of erythrocytes. It is still under investigation by many of the researchers in different disciplines. The clinicians and researchers are still looking for a simple and efficient method to monitor and tracking the erythrocytes deformation. This research article...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2018/6067583

    authors: Elblbesy MA

    更新日期:2018-10-24 00:00:00

  • OCT4B1 Regulates the Cellular Stress Response of Human Dental Pulp Cells with Inflammation.

    abstract::Introduction. Infection and apoptosis are combined triggers for inflammation in dental tissues. Octamer-binding transcription factor 4-B1 (OCT4B1), a novel spliced variant of OCT4 family, could respond to the cellular stress and possess antiapoptotic property. However, its specific role in dental pulpitis remains unkn...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2017/2756891

    authors: Liu L,Huang R,Yang R,Wei X

    更新日期:2017-01-01 00:00:00

  • Isorhamnetin Induces Melanoma Cell Apoptosis via the PI3K/Akt and NF-κB Pathways.

    abstract::Malignant melanoma is characterized by its bad prognosis for aggressiveness, drug resistance, and early metastasis. Isorhamnetin (3'-methoxy-3,4',5,7-tetrahydroxyflavone; IH) is a natural flavonoid that has been investigated for its antitumor effects in breast cancer, colon cancer, and gastric cancer through inducing ...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2020/1057943

    authors: Duan R,Liang X,Chai B,Zhou Y,Du H,Suo Y,Chen Z,Li Q,Huang X

    更新日期:2020-05-05 00:00:00

  • Organic anion transporter 5 renal expression and urinary excretion in rats with vascular calcification.

    abstract::It has been described renal damage in rats with vascular calcification. The organic anion transporter 5 (Oat5) is only expressed in kidney, and its urinary excretion was proposed as potential early biomarker of renal injury. The aim of this study was to evaluate the Oat5 renal expression and its urinary excretion in a...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2013/283429

    authors: Hazelhoff MH,Bulacio RP,Torres AM

    更新日期:2013-01-01 00:00:00

  • Effects of Short-Term Low-Dose Glucocorticoids for Patients with Mild COVID-19.

    abstract:Objectives:To evaluate the role of short-term low-dose glucocorticoids in mild COVID-19 patients. Methods:We conducted a retrospective, cross-sectional, single-center study in Kunming, China. A total of 33 mild COVID-19 cases were divided into two treatment groups (with and without glucocorticoids, methylprednisolone,...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2020/2854186

    authors: Fu HY,Luo Y,Gao JP,Wang L,Li HJ,Li X,Xue L,Tang XQ,Li HW,Du YR

    更新日期:2020-09-23 00:00:00

  • Modulation of Intrathymic Sphingosine-1-Phosphate Levels Promotes Escape of Immature Thymocytes to the Periphery with a Potential Proinflammatory Role in Chagas Disease.

    abstract::The sphingosine-1-phosphate (S1P) system regulates both thymic and lymph nodes T cell egress which is essential for producing and maintaining the recycling T cell repertoire. Infection with the protozoan parasite Trypanosoma cruzi induces a hormonal systemic deregulation that has impact in the thymic S1P homeostasis t...

    journal_title:BioMed research international

    pub_type: 杂志文章,评审

    doi:10.1155/2015/709846

    authors: Flávia Nardy A,Santos L,Freire-de-Lima CG,Morrot A

    更新日期:2015-01-01 00:00:00

  • The Impact of Noncavity-Distorting Intramural Fibroids on the Efficacy of In Vitro Fertilization-Embryo Transfer: An Updated Meta-Analysis.

    abstract:Aim:To address the impact of noncavity-distorting intramural fibroids on the efficacy of in vitro fertilization-embryo transfer (IVF-ET) outcomes. Methods:The PubMed, Web of Science, Embase, Cochrane Library, and China National Knowledge Infrastructure were searched systematically. A meta-analysis was performed based ...

    journal_title:BioMed research international

    pub_type: 杂志文章,meta分析

    doi:10.1155/2018/8924703

    authors: Wang X,Chen L,Wang H,Li Q,Liu X,Qi H

    更新日期:2018-09-04 00:00:00

  • Electroencephalographic changes associated with antinociceptive actions of lidocaine, ketamine, meloxicam, and morphine administration in minimally anaesthetized dogs.

    abstract::Effects of ketamine and lidocaine on electroencephalographic (EEG) changes were evaluated in minimally anaesthetized dogs, subjected to electric stimulus. Six dogs were subjected to six treatments in a crossover design with a washout period of one week. Dogs were subjected to intravenous boluses of lidocaine 2 mg/kg, ...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2015/305367

    authors: Kaka U,Hui Cheng C,Meng GY,Fakurazi S,Kaka A,Behan AA,Ebrahimi M

    更新日期:2015-01-01 00:00:00

  • Adherence to Allergen Subcutaneous Immunotherapy is Increased by a Shortened Build-Up Phase: A Retrospective Study.

    abstract::Introduction. The poor long-term adherence is known to affect the efficacy of allergen immunotherapy (AIT). In the case of injection AIT (SCIT), one of the main determinants is the inconvenience for patients to undergo prolonged build-up phases. Thus, simplifying the time schedule of the induction protocol could be ef...

    journal_title:BioMed research international

    pub_type: 杂志文章

    doi:10.1155/2020/7328469

    authors: Caruso C,Bramé B,Bagnasco D,Cocconcelli A,Ortolani V,Pravettoni V,Scarpa S,Zisa G,Passalacqua G,Colantuono S

    更新日期:2020-02-18 00:00:00