Abstract:
:We use hydrophobic poly(lactic-co-glycolic) acid (PLGA) to encapsulate hydrophilic ofloxacin to form drug loading microspheres. Hyaluronic acid (HA) and polylysine (Pls) were used as internal phase additives to see their influences on the drug loading and releasing. Double emulsion (water-in-oil-in-water) solvent extraction/evaporation method was used for the purpose. Particle size analysis display that the polyelectrolytes have low impact on the microsphere average size and distribution. Scanning electron microscope (SEM) pictures show the wrinkled surface resulted by the internal microcavity of the microspheres. Microspheres with HA inside have higher drug loading amounts than microspheres with Pls inside. The loading drug amounts of the microspheres increase with the HA amounts inside, while decreasing with the Pls amounts inside. All the polyelectrolytes adding groups have burst release observed in experiments. The microspheres with Pls internal phase have faster release rate than the HA groups. Among the same polyelectrolyte internal phase groups, the release rate increases with the amounts increasing when Pls is inside, while it decreases with the amounts increasing when HA is inside.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Wu G,Chen L,Li H,Deng CL,Chen XFdoi
10.1155/2014/297808subject
Has Abstractpub_date
2014-01-01 00:00:00pages
297808eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
杂志文章abstract:Background:Left ventricular (LV) systolic dysfunction is common in septic shock. Global longitudinal strain (GLS) measured by speckle tracking echocardiography (STE) is a useful marker of intrinsic left ventricular systolic function. However, the association between left ventricular GLS and outcome in septic patients i...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/7927353
更新日期:2020-10-21 00:00:00
abstract::Objectives. Osteopontin (OPN) is overexpressed in breast cancers, while its clinical and prognostic significance remained unclear. This study aimed to assess the prognostic value of OPN, especially its splice variants, in breast cancers. Methods. Data were extracted from eligible studies concerning the OPN and OPN-c e...
journal_title:BioMed research international
pub_type: 杂志文章,meta分析
doi:10.1155/2016/7310694
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:The serotonin (5-HT) pathway was shown to play a role in pulmonary hypertension (PH), but its functions in right ventricular failure (RVF) remain poorly understood. The aim of the current study was to investigate the effects of Terguride (5-HT2A and 2B receptor antagonist) or SB204741 (5-HT2B receptor antagon...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/438403
更新日期:2015-01-01 00:00:00
abstract::[This corrects the article DOI: 10.1155/2013/783690.]. ...
journal_title:BioMed research international
pub_type: 已发布勘误
doi:10.1155/2016/8693826
更新日期:2016-01-01 00:00:00
abstract::We have developed a new "drug" and approach that appear to be effective in reducing arterial age. This "drug" represents a low, subtherapeutic dose of statin and sartan and particularly their low-dose combination. The improvement of arterial wall characteristics, also reflecting in a decrease of arterial age, was achi...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/235709
更新日期:2015-01-01 00:00:00
abstract::Aspergillus species originating from Greece were examined by morphological and molecular criteria to explore the diversity of this genus. The phylogenetic relationships of these species were determined using sequences from the ITS and IGS region of the nuclear rRNA gene complex, two nuclear genes ( β -tubulin (benA) a...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/260395
更新日期:2013-01-01 00:00:00
abstract::Background. Prior studies have demonstrated that conventional and emerging CV risk factors are associated with worsening arterial stiffness among end-stage renal disease (ESRD) patients on hemodialysis. The present cross-sectional study evaluates the association between the etiology of ESRD and arterial stiffness amon...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2543262
更新日期:2017-01-01 00:00:00
abstract:Objectives:Childhood malnutrition is major health concern in many low- and middle-income countries, including Vietnam. It was a major risk factor for child mortality and adult ill-health. Malnutrition could increase the risk of serious infections; conversely current diseases also had a negative impact on the growth of ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/6921312
更新日期:2019-02-05 00:00:00
abstract::It is challenging and inspiring for us to achieve high spatiotemporal resolutions in dynamic cardiac magnetic resonance imaging (MRI). In this paper, we introduce two novel models and algorithms to reconstruct dynamic cardiac MRI data from under-sampled k - t space data. In contrast to classical low-rank and sparse mo...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/169317
更新日期:2015-01-01 00:00:00
abstract::L-amino acid oxidases are enzymes found in several organisms, including venoms of snakes, where they contribute to the toxicity of ophidian envenomation. Their toxicity is primarily due to enzymatic activity, but other mechanisms have been proposed recently which require further investigation. L-amino acid oxidases ex...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/196754
更新日期:2014-01-01 00:00:00
abstract::The objective of this study was to investigate the iontophoretic delivery of lidocaine hydrochloride through porcine skin and to compare the effects of modulated alternating and direct current iontophoresis. Continuous and modulated iontophoresis was applied for one hour and two hours (0-1 h and 4-5th h) using a 1% w/...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/537941
更新日期:2014-01-01 00:00:00
abstract::Substitution rates strongly depend on their nucleotide context. One of the most studied examples is the excess of C > T mutations in the CG context in various groups of organisms, including vertebrates. Studies on the molecular mechanisms underlying this mutation regularity have provided insights into evolution, mutag...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/989410
更新日期:2013-01-01 00:00:00
abstract::Contrast-induced nephropathy (CIN) is now one of the three leading causes of acute kidney injury in the world. A lot is known about the risk factors of CIN, yet it remains a major cause of morbidity, end stage renal disease, prolonged hospital stay, and increased costs as well as a high mortality. Many patients underg...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/423848
更新日期:2014-01-01 00:00:00
abstract::Big data bioinformatics aims at drawing biological conclusions from huge and complex biological datasets. Added value from the analysis of big data, however, is only possible if the data is accompanied by accurate metadata annotation. Particularly in high-throughput experiments intelligent approaches are needed to kee...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/958302
更新日期:2015-01-01 00:00:00
abstract:Background:Comparison of single-level open and minimally invasive transforaminal lumbar interbody fusions (O-TLIF and MI-TLIF) of a single surgeon and presentation of his MI-TLIF learning curve in a retrospective observational cohort study. Methods:27 MI-TLIF and 31 O-TLIF patients, performed between 03/01/2013 and 03...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/3798537
更新日期:2020-01-25 00:00:00
abstract::Arrhythmia is a disease that is caused by abnormal electrical activity in the heart rate or rhythm. It is the major cause of cardiovascular morbidity and mortality. Although several antiarrhythmic drugs have been used in clinic for decades, their application is often limited by their adverse effects. As a result, natu...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2017/4615727
更新日期:2017-01-01 00:00:00
abstract::The energy generated by an extremely low frequency electromagnetic field (ELF-EMF) is too weak to directly induce genotoxicity. However, it is reported that an extremely low frequency magnetic field (ELF-MF) is related to DNA strand breakage and apoptosis. The testes that conduct spermatogenesis through a dynamic cell...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/567183
更新日期:2014-01-01 00:00:00
abstract::In this paper, differences between multichannel EEG signals of artists and nonartists were analyzed during visual perception and mental imagery of some paintings and at resting condition using approximate entropy (ApEn). It was found that ApEn is significantly higher for artists during the visual perception and the me...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/764382
更新日期:2014-01-01 00:00:00
abstract::There is minimal research of upper extremity joint dynamics during pediatric wheelchair mobility despite the large number of children using manual wheelchairs. Special concern arises with the pediatric population, particularly in regard to the longer duration of wheelchair use, joint integrity, participation and commu...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/634768
更新日期:2015-01-01 00:00:00
abstract::We aim to investigate the effects of curcumin on preventing diabetes-induced vascular inflammation in association with its actions on Txnip, ICAM-1, and NOX2 enzyme expressions. Male Wistar rats were divided into four groups: control (CON), diabetic (DM; streptozotocin (STZ), i.v. 55 mg/kg BW), control-treated with cu...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/161346
更新日期:2014-01-01 00:00:00
abstract::The prospect of biomaterial hypersensitivity developing in response to joint implant materials was first presented more than 30 years ago. Many studies have established probable causation between first-generation metal-on-metal hip implants and hypersensitivity reactions. In a limited patient population, implant failu...
journal_title:BioMed research international
pub_type: 杂志文章,meta分析,评审
doi:10.1155/2015/137287
更新日期:2015-01-01 00:00:00
abstract::Vitamin D deficiency is common in pregnant women and infants. The present study aimed to investigate the effects of vitamin D restricted diet on the Wistar rats offspring penis morphology. Mother rats received either standard diet (SC) or vitamin D restricted (VitD) diet. At birth, offspring were divided into SC/SC (f...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/6030646
更新日期:2018-04-23 00:00:00
abstract::The simultaneous effect of flexible wall and multiple stenoses on the flow and mass transfer of blood is investigated through numerical computation and simulations. The solution is obtained using the Marker and Cell technique on an axisymmetric model of Newtonian blood flow. The results compare favorably with physical...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/7609562
更新日期:2020-01-31 00:00:00
abstract::Inflammatory bowel disease (IBD), one kind of intestinal chronic inflammatory disease, is characterized by colonic epithelial barrier injury, overproduction of proinflammatory cytokines, and fewer short-chain fatty acids (SCFAs). The present study is aimed at testing the hypothesis that resistant maltodextrin (RM), a ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/7694734
更新日期:2020-09-16 00:00:00
abstract::Two field isolates of Rhizoctonia solani were isolated from infected paddy plants in Malaysia. These isolates were verified via ITS-rDNA analysis that yielded ~720 bp products of the ITS1-5.8S-ITS4 region, respectively. The sequenced products showed insertion and substitution incidences which may result in strain dive...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/434257
更新日期:2014-01-01 00:00:00
abstract::Activity-dependent plasticity as a result of reorganization of neural circuits is a fundamental characteristic of the central nervous system that occurs simultaneously in multiple sites. In this study, we established the effects of subthreshold transcranial magnetic stimulation (TMS) over the primary motor cortex regi...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2013/516427
更新日期:2013-01-01 00:00:00
abstract::Brain injury such as traumatic brain injury (TBI) and stroke is the major cause of long-term disabilities in many countries. The increasing rate of brain damaged victims and the heterogeneity of impairments decrease rehabilitation effectiveness and competence resulting in higher cost of rehabilitation treatment. On th...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/493562
更新日期:2015-01-01 00:00:00
abstract:Background:Antiretroviral therapy transformed HIV infection into a chronic disease but accelerated cardiovascular disease (CVD). Both of epicardial adipose tissue (EAT) and pericardial fat (PCF) have close relationships with CVD. The associations between these two cardiac adipose tissue and HIV are unclear. Methods:El...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2020/8234618
更新日期:2020-12-09 00:00:00
abstract::Osteoarthritis (OA) is a chronic degenerative joint disease, where chondrocyte apoptosis is responsible for cartilage degeneration. Bax is a well-known proapoptotic protein of the Bcl-2 family, involved in a large number of physiological and pathological processes. However, the regulation mechanisms of Bax underlying ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/1434538
更新日期:2019-03-12 00:00:00
abstract::Variations in human genome (e.g., single nucleotide polymorphisms, SNPs) may be associated with hereditary diseases, their complications, comorbidities, and drug responses. Using Web service SNP_TATA_Comparator presented in our previous paper, here we analyzed immediate surroundings of known SNP markers of diseases an...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/8642703
更新日期:2016-01-01 00:00:00