Abstract:
BACKGROUND:Novel prognostic markers are needed so newly diagnosed breast cancer patients do not undergo any unnecessary therapy. Various microarray gene expression datasets based studies have generated gene signatures to predict the prognosis outcomes, while ignoring the large amount of information contained in established clinical markers. Nevertheless, small sample sizes in individual microarray datasets remain a bottleneck in generating robust gene signatures that show limited predictive power. The aim of this study is to achieve high classification accuracy for the good prognosis group and then achieve high classification accuracy for the poor prognosis group. METHODS:We propose a novel algorithm called the IPRE (integrated prognosis risk estimation) algorithm. We used integrated microarray datasets from multiple studies to increase the sample sizes (∼ 2,700 samples). The IPRE algorithm consists of a virtual chromosome for the extraction of the prognostic gene signature that has 79 genes, and a multivariate logistic regression model that incorporates clinical data along with expression data to generate the risk score formula that accurately categorizes breast cancer patients into two prognosis groups. RESULTS:The evaluation on two testing datasets showed that the IPRE algorithm achieved high classification accuracies of 82% and 87%, which was far greater than any existing algorithms.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Saini A,Hou J,Zhou Wdoi
10.1155/2014/459203subject
Has Abstractpub_date
2014-01-01 00:00:00pages
459203eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
杂志文章abstract::Impaired glucose tolerance (IGT), known as the prediabetes stage, is usually induced by habits of life or environmental factors. Established IGT animal models are mostly conducted with chemical compounds such as streptozocin or genetic modification. However, the occasion of exposure to these factors in daily life is s...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/457246
更新日期:2015-01-01 00:00:00
abstract::Cancer cells acquire unique secretome compositions that contribute to tumor development and metastasis. The aim of our study was to elucidate the biological processes involved in cervical cancer, by performing a proteomic analysis of the secretome from the following informative cervical cell lines: SiHa (HPV16+), HeLa...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/4180703
更新日期:2017-01-01 00:00:00
abstract:Background:Inconsistent data have been reported for the effectiveness of intramuscular botulinum toxin type A (BTXA) in patients with limb spasticity after stroke. This meta-analysis of available randomized controlled trials (RCTs) aimed to determine the efficacy and safety of BTXA in adult patients with upper and lowe...
journal_title:BioMed research international
pub_type: 杂志文章,meta分析
doi:10.1155/2019/8329306
更新日期:2019-04-07 00:00:00
abstract::Different batches of atorvastatin, represented by two immediate release formulation designs, were studied using a novel dynamic dissolution apparatus, simulating stomach and small intestine. A universal dissolution method was employed which simulated the physiology of human gastrointestinal tract, including the precis...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/328628
更新日期:2015-01-01 00:00:00
abstract::A diffusion theory-based, all-physical ab initio protein folding simulation is described and applied. The model is based upon the drift and diffusion of protein substructures relative to one another in the multiple energy fields present. Without templates or statistical inputs, the simulations were run at physiologic ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/583045
更新日期:2013-01-01 00:00:00
abstract::Several factors, including compressive load and knee kinematics, have been shown to influence wear. External knee moments (a surrogate for load) have recently been correlated with the medial and lateral wear scar areas of an unconstrained, PCL retaining knee design. Therefore, the purpose of this study was to determin...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/284513
更新日期:2015-01-01 00:00:00
abstract::Study of the probiotic potential of microorganisms isolated from fermented foods has been increasing, especially studies related to lactobacilli. In intestinal models, lactobacilli have demonstrated beneficial properties, such as anti-inflammatory activity and increased antibody production, but the molecular mechanism...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/3264194
更新日期:2017-01-01 00:00:00
abstract::The microbial safety and stability of minimally processed foods are based on the application of combined preservative factors. Since microorganisms are able to develop adaptive networks to survive under conditions of stress, food safety may be affected, and therefore understanding of stress adaptive mechanisms plays a...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/548930
更新日期:2015-01-01 00:00:00
abstract::Human cytoplasmic alpha-fetoprotein (AFP) has been classified as a member of the albuminoid gene family. The protein sequence of AFP has significant homology to that of human serum albumin (HSA), but its biological characteristics are vastly different from HSA. The AFP functions as a regulator in the phosphatidylinosi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/256916
更新日期:2015-01-01 00:00:00
abstract::Fatty acids (C6-C18) found in human amniotic fluid, colostrum, and maternal milk reduce behavioral indicators of experimental anxiety in adult Wistar rats. Unknown, however, is whether the anxiolytic-like effects of fatty acids provide a natural mechanism against anxiety in young offspring. The present study assessed ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/8798546
更新日期:2017-01-01 00:00:00
abstract::This study aims to investigate the expression of macrophage inflammatory protein-3 alpha (MIP-3α) and cystatin A in nasopharyngeal carcinoma (NPC) and their association with clinical characteristics and prognosis. Primary tumor specimens from 114 NPC patients and associated clinical follow-up data were collected, and ...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2015/617143
更新日期:2015-01-01 00:00:00
abstract::Background. Monitoring the epidemiology of cardiovascular risk factors (CRFs) and their determinants is important to develop appropriate recommendations to prevent cardiovascular diseases in specific risk groups. The NESCaV study was designed to collect standardized data to estimate the prevalence of CRFs in relation ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/580849
更新日期:2015-01-01 00:00:00
abstract::Poly(ADP-ribose) polymerase (PARP) inhibitors have proven to be successful agents in inducing synthetic lethality in several malignancies. Several PARP inhibitors have reached clinical trial testing for treatment in different cancers, and, recently, Olaparib (AZD2281) has gained both United States Food and Drug Admini...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/2346585
更新日期:2016-01-01 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. Acute graft-versus-host disease (aGVHD) involving skin is one of the most frequent complications of allogeneic hematopoietic stem cell transplantation (alloHSCT), usually diagnosed based on clinical manifestations. So far, skin biopsy with histopathological evaluation is the only method to confirm the diag...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/4535717
更新日期:2016-01-01 00:00:00
abstract::Beta-1,3-glucanosyltransferase (Gas1p) plays important roles in cell wall biosynthesis and morphogenesis and has been implicated in DNA damage responses and cell cycle regulation in fungi. Yeast Gas1p has also been reported to participate in endoplasmic reticulum (ER) stress responses. However, the precise roles and m...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/1238581
更新日期:2019-06-02 00:00:00
abstract::It is believed that the vasopressinergic system plays an important role in the pathogenesis of chronic kidney disease (CKD). The aim of this study was to evaluate the effect of CKD on changes in vasopressin system expression in the kidney cortex in rats with nephrectomy. The study was performed on 4 groups of Sprague ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/2607928
更新日期:2018-06-14 00:00:00
abstract:Background:This study investigated the potential therapeutic effects of acupoint catgut embedding (ACE) at ST36 and BL13 on lipopolysaccharide- (LPS-) induced acute respiratory distress syndrome (ARDS) in rats. Materials and Methods:Male Sprague-Dawley rats were randomized into the normal saline (NS group with a sham ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/2394734
更新日期:2020-05-02 00:00:00
abstract::Transient receptor potential polycystic 2 (TRPP2) exerts vital roles in various types of cancer; however, its underlying mechanisms remain largely unknown. This study is aimed at investigating whether knockdown of TRPP2 affected the AMP-activated protein kinase (AMPK)/acetyl-CoA carboxylase (ACC) signaling pathway and...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/4375075
更新日期:2020-11-14 00:00:00
abstract::Microcystins (MCs) are hepatotoxins harmful for animal and human health. The most toxic type between them is MC-LR whose presence has been investigated in different reservoirs all around the world. In this work microcystins were monitored in spring and summer in water and mussels (Mytilus galloprovincialis) of two Sar...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/3769245
更新日期:2017-01-01 00:00:00
abstract::Puffer fishes were collected from the central sea in Vietnam from spring to summer season. The eggs were incubated in MRS broth that was used to test the toxicity in mice and isolate the lactic acid bacteria community that could produce tetrodotoxin (TTX). Thin layer chromatography (TLC) and high performance lipid chr...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/973235
更新日期:2015-01-01 00:00:00
abstract::The 13 million nurses worldwide constitute most of the global healthcare workforce and are uniquely positioned to engage with others to address disparities in healthcare to achieve the goal of better health for all. A new vision for nurses involves active participation and collaboration with international colleagues a...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/3127543
更新日期:2016-01-01 00:00:00
abstract::Synthetic lethality (SL) is a novel strategy for anticancer therapies, whereby mutations of two genes will kill a cell but mutation of a single gene will not. Therefore, a cancer-specific mutation combined with a drug-induced mutation, if they have SL interactions, will selectively kill cancer cells. While numerous SL...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/196034
更新日期:2014-01-01 00:00:00
abstract::Removal of MTA from dentin by applying 37% hydrochloric acid (HCl) to reduce microhardness and push-out bond strength. Forty dentin slices were filled with WMTA and divided into two groups (n = 20). Ten slices remained untreated while others were exposed to either HCl or phosphate buffer saline (PBS) and all samples w...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/469164
更新日期:2013-01-01 00:00:00
abstract::To study the effect of intra-abdominal hypertension (IAH) on the frequency of pneumonia with an experimental study, thirteen Sprague-Dawley rats were included. Eight out of thirteen animals were randomly assigned to receive 10 ml of benzalkonium chloride 0.2% (megacolon group) and five animals received 10 ml NaCl 0.9%...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/4601348
更新日期:2017-01-01 00:00:00
abstract::Early Infantile Epileptic Encephalopathy (known as Ohtahara Syndrome) is one of the most severe and earliest forms of epilepsy, characterized by early seizures onset. It affects newborns and children between two and six years old. Among the genes that have been associated with early infantile epileptic encephalopathy,...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/4872101
更新日期:2019-12-17 00:00:00
abstract:INTRODUCTION:This paper presents the final results of a cross-sectional study started in 2010. It compares the perceived efficacy of different types of tobacco health warning (texts versus shocking pictures) to quit or reduce tobacco use. METHODS:The study conducted between 2010 and 2012 in Italy enrolled adults smoke...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/723035
更新日期:2014-01-01 00:00:00
abstract::Data on genotypic diversity of Mycobacterium tuberculosis complex (MTBC) is important to understand its epidemiology, human adaptation, clinical phenotypes, and drug resistance. This study aimed to characterize MTBC clinical isolates circulating in a predominantly pastoralist area in Ethiopia, a country where tubercul...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/238532
更新日期:2014-01-01 00:00:00
abstract::We review the recent literature concerning the efficiency of antimicrobial photodynamic inactivation toward various microbial species in planktonic and biofilm cultures. The review is mainly focused on biofilm-growing microrganisms because this form of growth poses a threat to chronically infected or immunocompromised...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2013/150653
更新日期:2013-01-01 00:00:00
abstract::Sophora davidii (Franch.) Kom. ex Pavol is an important medicinal plant and a feeding scrub with ecological value. The effects of different gamma irradiation doses (20-140 Kr) on seed germination and seedling morphology were investigated in S. davidii, and intersimple sequence repeat (ISSR) markers were used to identi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/8576404
更新日期:2017-01-01 00:00:00