Abstract:
:Chagas disease is caused by Trypanosoma cruzi infection. Besides the host-related factors, such as immune response and genetic background, the parasite, strain, and occurrences of reinfection episodes, may influence disease outcome. Our results demonstrate that both the primary infection and the reinfection with the Colombiana strain are connected with lower survival rate of the mice. After reinfection, parasitaemia is approximately ten times lower than in primary infected animals. Only Colombiana, Colombiana/Colombiana, and Y/Colombiana groups presented amastigote nests in cardiac tissue. Moreover, the mice infected and/or reinfected with the Colombiana strain had more T. cruzi nests, more intense inflammatory infiltrate, and higher in situ expression of TNF-α and IFN-γ than Y strain. Antigen-stimulated spleen cells from infected and/or reinfected animals produced higher levels of TNF-α, IFN-γ, and IL-10. Our results reinforce the idea that Chagas disease outcome is influenced by the strain of the infective parasite, being differentially modulated during reinfection episodes. It highlights the need of control strategies involving parasite strain characterization in endemic areas for Chagas disease.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Reis Machado J,Silva MV,Borges DC,da Silva CA,Ramirez LE,dos Reis MA,Castellano LR,Rodrigues V,Rodrigues DBdoi
10.1155/2014/648715subject
Has Abstractpub_date
2014-01-01 00:00:00pages
648715eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
杂志文章abstract::Women's relative lack of decision-making power and their unequal access to employment, finances, education, basic health care, and other resources are considered to be the root causes of their ill-health and that of their children. The main purpose of this paper is to examine the interactive relation between women's e...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/403402
更新日期:2014-01-01 00:00:00
abstract::Apc-mutated Pirc rats, spontaneously developing intestinal tumours, are resistant to 1,2-dimethylhydrazine- (DMH-) induced colon apoptosis. To understand this phenomenon, we analyzed the expression of genotoxic stress-related genes Mgmt, Gsta1, and Gstp1 in the colon of wt and Pirc rats in basal conditions and 24 h af...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/1310342
更新日期:2016-01-01 00:00:00
abstract:Introduction:Pulp regeneration, as a treatment for pulp necrosis, has significant advantages over root canal therapy for the preservation of living pulp. To date, research on pulp regeneration has mainly focused on the transplantation of pulp stem cells into the root canal, but there is still a lack of research on the ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/4759060
更新日期:2019-07-18 00:00:00
abstract::The aim of this population-based cohort study was to explore postoperative renal outcomes of patients receiving pyelolithotomy versus percutaneous nephrolithotomy (PCNL). Data were retrieved from the Taiwan National Health Insurance Research Database. During the period from Jan 1, 1998, to Dec 31, 2012, there were 254...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/8582901
更新日期:2018-05-02 00:00:00
abstract::This study investigated how the posture of the thumb while performing common pinch movements and the levels of pinch force applied by the thumb affect the arthrokinematics of the trapeziometacarpal joint in vivo. Fifteen subjects performed the pinch tasks at the distal phalange (DP), proximal interphalangeal (PIP) joi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/157295
更新日期:2014-01-01 00:00:00
abstract:Introduction:This study examines the utility of electroencephalography (EEG) in clinical decision making in acute ischemic stroke (AIS) patients in regards to the prescription of antiseizure medications. Methods:Patients were grouped as having positive EEG (+) for epileptiform activity or negative EEG (-). These studi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/6250531
更新日期:2020-12-19 00:00:00
abstract::The aim of our study was to monitor serum levels of two miRNAs (miR-21 and miR-141) and three KLKs (hK3/PSA, hK11, and hK13) before and 1, 5, and 30 days after radical prostatectomy, in order to characterize their fluctuations after surgery. 38 patients with prostate cancer were included. miR-21 and miR-141 were quant...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/241780
更新日期:2013-01-01 00:00:00
abstract::Engineering three-dimensional (3D) vascularized constructs remains a challenge due to the inability to form rich microvessel networks. In this study we engineered a prevascularized 3D cell sheet construct for tissue regeneration using human bone marrow-derived mesenchymal stem cells (hMSCs) and human umbilical vein en...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/301279
更新日期:2014-01-01 00:00:00
abstract::The insula is believed to be associated with touch-evoked effects. In this work, functional MRI was applied to investigate the network model of insula function when 20 normal subjects received tactile stimulation over segregated areas. Data analysis was performed with SPM8 and Conn toolbox. Activations in the contrala...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/734326
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:This study aimed to analyze differences in necrotic changes between cortical and cancellous bone in resection margins after segmental mandibulectomy for advanced mandibular osteoradionecrosis. METHODS:Anteroposterior bone specimens from eleven patients who underwent segmental mandibulectomy with simultaneou...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/3125842
更新日期:2017-01-01 00:00:00
abstract::WHO reported that adherence among patients with chronic diseases averages only 50% in developed countries. This is recognized as a significant public health issue, since medication nonadherence leads to poor health outcomes and increased healthcare costs. Improving medication adherence is, therefore, crucial and revea...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/217047
更新日期:2015-01-01 00:00:00
abstract::Preeclampsia (PE) is a unique complication of pregnancy, the pathogenesis of which has been generally accepted to be associated with the dysfunctions of extravillous trophoblast (EVT) including proliferation, apoptosis, and migration and invasion. Decorin (DCN) has been proved to be a decidua-derived TGF-binding prote...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/201629
更新日期:2015-01-01 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::Our previous studies have demonstrated that diabetes-induced oxidative stress alters homeostasis of retinal nerve growth factor (NGF) resulting in accumulation of its precursor, proNGF, at the expense of NGF which plays a critical role in preserving neuronal and retinal function. This imbalance coincided with retinal ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/571456
更新日期:2015-01-01 00:00:00
abstract:Background:Sympathetic sprouting in the dorsal root ganglion (DRG) following nerve injuries had been proved to induce adult neuropathic pain. However, it is unclear whether the abnormal sprouting occurs in infant nerve injury. Methods:L5 spinal nerve ligation (SNL) or sham surgery was performed on adult rats and 10-da...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9165475
更新日期:2020-06-16 00:00:00
abstract:Objective:To explore multiscale integrated analysis methods in identifying key regulators of esophageal cancer (ESCA). Methods:We downloaded the ESCA dataset from The Cancer Genome Atlas (TCGA) database, which contained RNA-seq data, miRNA-seq data, methylation data, and clinical phenotype information. Then, we combin...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5603958
更新日期:2020-08-12 00:00:00
abstract::This review examines studies of radiofrequency ablation (RFA) of nonsmall cell lung cancer (NSCLC) and discusses the role of RFA in treatment of early-stage NSCLC. RFA is usually performed under local anesthesia with computed tomography guidance. RFA-associated mortality, while being rare, can result from pulmonary ev...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/152087
更新日期:2014-01-01 00:00:00
abstract::Background. High HDL-cholesterol (HDL-C) values are negatively correlated with cardiovascular diseases. This review analyses the effect of the supplementation with various Mediterranean diet products (artichoke, bergamot, and olive oil) and Asian diet products (red yeast rice) on the HDL-C value in dyslipidemic subjec...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/2025687
更新日期:2016-01-01 00:00:00
abstract::CD13 is a membrane glycoprotein with aminopeptidase activity, expressed on several cell types, including myeloid cells (dendritic cells, monocytes, macrophages, neutrophils, etc.). CD13 participates in several functions such as proteolytic regulation of bioactive peptides, viral receptor, angiogenesis, and tumor metas...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/4093435
更新日期:2018-03-29 00:00:00
abstract::The aging process causes a number of changes in the skin, including oxidative stress and dyschromia. The kojic acid (KA) is iron chelator employed in treatment of skin aging, and inhibits tyrosinase, promotes depigmentation. Nanotechnology-based drug delivery systems, such as liquid crystalline systems (LCSs), can mod...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/271276
更新日期:2013-01-01 00:00:00
abstract::Tissues in the anterior segment of the eye are particular vulnerable to oxidative stress. To minimise oxidative stress, ocular tissues utilise a range of antioxidant defence systems which include nonenzymatic and enzymatic antioxidants in combination with repair and chaperone systems. However, as we age our antioxidan...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2013/207250
更新日期:2013-01-01 00:00:00
abstract::RAW264.7 is a macrophage strain derived from mice tumour and shows a significant ability in antigen uptake. Real-time quantitative PCR (RT-qPCR) is one of the most commonly used methods in gene studies and requires suitable reference genes to normalize and quantitate the expression of gene of interest with sensitivity...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/6131879
更新日期:2019-05-16 00:00:00
abstract::Atypical chemokine receptors (ACKRs) are a subclass of G protein-coupled receptors characterized by promiscuity of ligand binding and an obvious inability to signal after ligand binding. Although some discoveries regarding this family in Homo sapiens and other species have been reported in some studies, the evolution ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/9065181
更新日期:2018-09-24 00:00:00
abstract::During a spaceflight, astronauts need to live in a spacecraft on orbit for a long time, and the relationship between humans and microorganisms in the closed environment of space is not the same as on the ground. The dynamic study of microorganisms in confined space shows that with the extension of the isolation time, ...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2020/4094191
更新日期:2020-06-20 00:00:00
abstract::Uveitic glaucoma (UG) typically is associated with very high intraocular pressure (IOP) and more intense optic nerve damage than other glaucoma types. This secondary glaucoma requires an early diagnosis and adequate management of both uveitis and glaucoma. It is mandatory to identify the mechanisms of IOP elevation th...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/742792
更新日期:2015-01-01 00:00:00
abstract:Objective:To explore the ability of asiatic acid to interfere with the invasion and proliferation of breast cancer cells by inhibiting WAVE3 expression and activation through the PI3K/AKT signaling pathway. Methods:The MDA-MB-231 cells with strong invasiveness were screened by transwell assay, and plasmids with high e...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/1874387
更新日期:2020-02-10 00:00:00
abstract::Novel and more effective treatment strategies against multiple myeloma (MM) have significantly prolonged patients' survival and raised interest in the depth of response and its association with clinical outcome. Minimal residual disease (MRD) has emerged as one of the most relevant prognostic factors in MM and should ...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/832049
更新日期:2015-01-01 00:00:00
abstract:Background:Inflammation is the major risk factor for the progression of hepatocellular carcinoma (HCC), and the nuclear factor-κB (NF-κB) signaling plays the central role in the inflammation process. However, the activated mechanism of NF-κB signaling in HCC is unclear. Methods:The expression of PHF5A is examined by q...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/1621854
更新日期:2019-01-15 00:00:00
abstract::Chromosome/DNA instability could be one of the primary causes of malignant cell transformation. The objective of the present study was to evaluate the spontaneous genetic damages in exfoliated cells of buccal mucosa of head and neck cancer (HNC) by counting micronucleus (MN) and binucleated (BN) cells frequencies. MN ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/905252
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:Osteopontin (OPN), a multifunctional glycoprotein secreted from a wide variety of cells after inflammatory stimulation, is well accepted to contribute to the development of allergic diseases. However, the influence of histamine H1 receptor antagonists (antihistamines) on OPN functions is not well understood....
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/735835
更新日期:2013-01-01 00:00:00