Abstract:
:A novel methylamine-selective amperometric bienzyme biosensor based on recombinant primary amine oxidase isolated from the recombinant yeast strain Saccharomyces cerevisiae and commercial horseradish peroxidase is described. Two amine oxidase preparations were used: free enzyme (AMO) and covalently immobilized on the surface of gold nanoparticles (AMO-nAu). Some bioanalytical parameters (sensitivity, selectivity, and storage stability) of the developed biosensors were investigated. The sensitivity for both sensors is high: 1450 ± 113 and 700 ± 30 A(-1) ·M(-1) ·m(-2) for AMO-nAu biosensor, respectively. The biosensors exhibit the linear range from 15 μM to 150 μM (AMO-nAu) and from 15 μM to 60 μM (AMO). The developed biosensor demonstrated a good selectivity toward methylamine (MA) (signal for dimethylamine and trimethylamine is less than 5% and for ethylamine 15% compared to MA output) and reveals a satisfactory storage stability. The constructed amperometric biosensor was used for MA assay in real samples of fish products in comparison with chemical method. The values obtained with both approaches different methods demonstrated a high correlation.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Stasyuk NY,Smutok OV,Zakalskiy AE,Zakalska OM,Gonchar MVdoi
10.1155/2014/480498subject
Has Abstractpub_date
2014-01-01 00:00:00pages
480498eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
杂志文章abstract::Acute graft-versus-host disease (aGVHD) is a major complication of allogeneic hematopoietic stem cell transplantation (allo-HSCT) and a major cause of nonrelapse mortality after allo-HSCT. A conditioning regimen plays a pivotal role in the development of aGVHD. To provide a platform for studying aGVHD and evaluating t...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/3071214
更新日期:2016-01-01 00:00:00
abstract::Bloodstream infections are a major concern because of high levels of antibiotic consumption and of the increasing prevalence of antimicrobial resistance. Bacteraemia is identified in a small percentage of patients with signs and symptoms of sepsis. Biomarkers are widely used in clinical practice and they are useful fo...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/547818
更新日期:2014-01-01 00:00:00
abstract:PURPOSE:Assessing the role of breast MRI compared to galactography in patients with unilateral bloody or serous-bloody nipple discharge. MATERIALS AND METHODS:Retrospective study including 53 unilateral discharge patients who performed galactography and MRI. We evaluated the capability of both techniques in identifyin...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/806368
更新日期:2015-01-01 00:00:00
abstract::High-dose melphalan (200 mg/m(2)) as conditioning regimen followed by autologous stem cell transplantation (ASCT) rescue has been established as a standard treatment for patients with multiple myeloma (MM) younger than 65 years of age. However, the role of ASCT in elderly patients older than 65 years remains controver...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/394792
更新日期:2014-01-01 00:00:00
abstract::This work aimed to explore the cardiovascular effects induced by freeze-dried juice from Syzygium jambolanum (Lam.) DC fruits (JSJ). JSJ presented high polyphenol content and steroids. HPLC analysis revealed that 2,5-dihydroxybenzoic and caffeic acid were present in higher amounts in the JSJ extract. In rat, JSJ induc...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/4827461
更新日期:2018-10-08 00:00:00
abstract::Flash-lamp pulsed-dye laser (FPDL) is a nonablative technology, typically used in vascular malformation therapy due to its specificity for hemoglobin. FPDL treatments were performed in a large group of patients with persistent and/or recalcitrant different dermatological lesions with cutaneous microvessel involvement....
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2016/7981640
更新日期:2016-01-01 00:00:00
abstract::The objective of the current research was to review and update evidence on the dietary effect of the consumption of tagatose in type 2 diabetes, as well as to elucidate the current approach that exists on its production and biotechnological utility in functional food for diabetics. Articles published before July 1, 20...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2018/8718053
更新日期:2018-01-09 00:00:00
abstract::Hyaluronic acid (HA), a macropolysaccharidic component of the extracellular matrix, is common to most species and it is found in many sites of the human body, including skin and soft tissue. Not only does HA play a variety of roles in physiologic and in pathologic events, but it also has been extensively employed in c...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/921549
更新日期:2014-01-01 00:00:00
abstract::The incidence of acute kidney injury after cardiac surgery (CS-AKI) ranges from 33% to 94% and is associated with a high incidence of morbidity and mortality. The etiology is suggested to be multifactorial and related to almost all aspects of perioperative management. Numerous studies have reported the risk factors an...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/2985148
更新日期:2016-01-01 00:00:00
abstract::The purpose of this paper is to examine how well the human induced pluripotent stem cell (hiPSC) colony images can be classified using error-correcting output codes (ECOC). Our image dataset includes hiPSC colony images from three classes (bad, semigood, and good) which makes our classification task a multiclass probl...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/3025057
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Although expression of miR-200s is aberrant in liver fibrosis, its role in liver fibrogenesis still remains unknown. Here, we investigated the role of miR-200c in the activation of human hepatic stellate cells (HSCs) and induction of liver fibrosis. METHODS:We engineered human HSCs (LX2 cell line) to stably...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2670658
更新日期:2017-01-01 00:00:00
abstract::A 35 KDa protein referred to as F3 was purified from the seeds of Borreria hispida by precipitation with 80% ammonium sulphate and gel filtration on Sephadex G-100 column. RP-HPLC analysis of protein fraction (F3) on an analytical C-18 column produced a single peak, detected at 220 nm. F3 showed an apparent molecular ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/179836
更新日期:2014-01-01 00:00:00
abstract:PURPOSE:Suppressor of cytokine signaling 7 (SOCS7) is a member of the SOCS family and is known to interact with phospholipase Cγ-1 (PLCγ-1), a key downstream mediator of the hepatocyte growth factor (HGF)/C-MET axis. Here, we report our observations of the effect of knocking down SOCS7 gene on the behaviour of breast c...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/648040
更新日期:2014-01-01 00:00:00
abstract::Tumors and wounds share many similarities including loss of tissue architecture, cell polarity and cell differentiation, aberrant extracellular matrix (ECM) remodeling (Ballard et al., 2006) increased inflammation, angiogenesis, and elevated cell migration and proliferation. Whereas these changes are transient in repa...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/103923
更新日期:2014-01-01 00:00:00
abstract::Until now, the chemical bonding between titanium and bone has been examined only through a few mechanical detachment tests. Therefore, in this study, a sandblasted and acid-etched titanium mini-implant was removed from a human patient after 2 months of placement in order to identify the chemical integration mechanism ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/960410
更新日期:2015-01-01 00:00:00
abstract::Background. Endemic areas of tegumentary leishmaniasis (TL) in Salta, Argentina, present some overlap zones with the geographical distribution of Chagas disease, with mixed infection cases being often detected. Objectives. The purpose of this study was to determine the magnitude of Leishmania sp. infection and potenti...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/6456031
更新日期:2016-01-01 00:00:00
abstract::The aim of the study was to find out whether peripheral blood leukocyte adiponectin receptors 1 and 2 (AdipoR1, AdipoR2) protein expression patterns (flow cytometry) differ between the primary hypertension children (n = 57) and healthy controls (n = 19) and if their expression levels are related to selected clinical p...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/742646
更新日期:2015-01-01 00:00:00
abstract::Molecular recognition elements (MREs) can be short sequences of single-stranded DNA, RNA, small peptides, or antibody fragments. They can bind to user-defined targets with high affinity and specificity. There has been an increasing interest in the identification and application of nucleic acid molecular recognition el...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/419318
更新日期:2015-01-01 00:00:00
abstract::In consequence of the key role of factor Xa in the clotting cascade and absence of its activity in the processes that do not affect coagulation, this protein is an attractive target for development of new blood coagulation inhibitors. Factor Xa is more effective and convenient target for creation of anticoagulants tha...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/120802
更新日期:2015-01-01 00:00:00
abstract::India is highly endemic to malaria with prevalence of all five species of human malaria parasites of Plasmodium genus. India is set for malaria elimination by 2030. Since cases of mixed Plasmodium species infections remain usually undetected but cause huge disease burden, in order to understand the distributional prev...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2847548
更新日期:2017-01-01 00:00:00
abstract::Aim. The aim of the study was to compare the incidence of "de novo" overactive bladder (OAB) after sling surgeries and Burch procedure and to analyze the effect of the preoperative bladder volume on the incidence of this condition. Methods. This prospective trial included 290 female patients with stress urinary incont...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2019/9515242
更新日期:2019-02-12 00:00:00
abstract:PURPOSE:To estimate localization and the period up to the appearance of small hyperreflective round-shaped droplets using spectral-domain optical coherence tomography (SD-OCT) after pars plana vitrectomy with silicone oil tamponade. METHODS:A retrospective observational study included 24 patients who had undergone par...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/372045
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::This study investigated the effect of cilostazol on proangiogenesis functions in human early endothelial progenitor cells (EPCs) in vitro and the therapeutic implication of hybrid therapy with cilostazol and human early EPCs in vivo. Cilostazol significantly increased colony-forming units and enhanced differentiation ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/3639868
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:This study mainly aimed to explore the association between brain-derived neurotropic factor (BDNF) Val66Met polymorphism and posttraumatic stress disorder (PTSD) among flood survivors in China. METHODS:Individuals who experienced the 1998 Dongting Lake flood in Southeast Huarong, China, were enrolled in this...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2017/4569698
更新日期:2017-01-01 00:00:00
abstract::One of the female causes of infertility is anovulation which is treatable with gonadotropin hormones. These hormones affect the molecular organization of the uterus such as glycoconjugates that are the first site of contact between the blastocyst and the uterus. The objective of this project was to study the alteratio...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/3967427
更新日期:2020-12-04 00:00:00
abstract::The primary goal of this work was to study advantages of numerical methods used for the creation of continuous time Markov chain models (CTMC) of voltage gating of gap junction (GJ) channels composed of connexin protein. This task was accomplished by describing gating of GJs using the formalism of the stochastic autom...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/936295
更新日期:2015-01-01 00:00:00
abstract::The occurrence of head and neck cancer (HNC) is associated with smoking and alcohol drinking. Tobacco smoking exposes smokers to a series of carcinogenic chemicals. Cytochrome P450 enzymes (CYP450s), such as CYP1A1, CYP1B1, and CYP2D6, usually metabolize carcinogens to their inactive derivatives, but they occasionally...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2013/582768
更新日期:2013-01-01 00:00:00
abstract::Some degree of external root resorption is a frequent, unpredictable, and unavoidable consequence of orthodontic tooth movement mediated by odontoclasts/cementoclasts originating from circulating precursor cells in the periodontal ligament. Its pathogenesis involves mechanical forces initiating complex interactions be...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/4864195
更新日期:2016-01-01 00:00:00
abstract::A kind of chemically cross-linked pH-sensitive hydrogels based on methoxyl poly(ethylene glycol)-poly(caprolactone)-acryloyl chloride (MPEG-PCL-AC, PECA), poly(ethylene glycol) methyl ether methacrylate (MPEGMA, MEG), N,N-methylenebisacrylamide (BIS), and itaconic acid (IA) were prepared without using any organic solv...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/239838
更新日期:2013-01-01 00:00:00