Abstract:
PURPOSE:To evaluate tumor structure in children with diffuse intrinsic pontine glioma (DIPG) using histogram analyses of mean diffusivity (MD), determine potential treatment and corticosteroid-related effects on MD, and monitor changes in MD distributions over time. MATERIALS AND METHODS:DTI was performed on a 1.5T GE scanner. Regions of interest included the entire FLAIR-defined tumor. MD data were used to calculate histograms. Patterns in MD distributions were evaluated and fitted using a two-normal mixture model. Treatment-related effects were evaluated using the R (2) statistic for linear mixed models and Cox proportional hazards models. RESULTS:12 patients with DIPG underwent one or more DTI exams. MD histogram distributions varied among patients. Over time, histogram peaks became shorter and broader (P = 0.0443). Two-normal mixture fitting revealed large lower curve proportions that were not associated with treatment response or outcome. Corticosteroid use affected MD histograms and was strongly associated with larger, sharper peaks (R(2) = 0.51, P = 0.0028). CONCLUSIONS:MD histograms of pediatric DIPG show significant interpatient and intratumoral differences and quantifiable changes in tumor structure over time. Corticosteroids greatly affected MD and must be considered a confounding factor when interpreting MD results in the context of treatment response.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Steffen-Smith EA,Sarlls JE,Pierpaoli C,Shih JH,Bent RS,Walker L,Warren KEdoi
10.1155/2014/647356subject
Has Abstractpub_date
2014-01-01 00:00:00pages
647356eissn
2314-6133issn
2314-6141journal_volume
2014pub_type
杂志文章abstract:Background and Aims:Concordance between transient elastography (TE) and ultrasonography (US) in assessing liver fibrosis in patients with chronic hepatitis B (CHB) and concurrent nonalcoholic fatty liver disease (NAFLD) has been rarely studied. This study aimed to evaluate the individual and combined performances of TE...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/3951574
更新日期:2019-01-23 00:00:00
abstract::Circulating cell-free DNA has been recognized as an accurate marker for the diagnosis of prostate cancer, whereas the role of urine cell-free DNA (UCF DNA) has never been evaluated in this setting. It is known that normal apoptotic cells produce highly fragmented DNA while cancer cells release longer DNA. We thus veri...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/270457
更新日期:2013-01-01 00:00:00
abstract::We aimed to determine the effects of an 8 wk Hatha yoga training on blood glucose, insulin, lipid profiles, endothelial microparticles (EMPs), and inflammatory status in healthy, lean, and female Chinese subjects. A total of 30 healthy, female Chinese subjects were recruited and randomized into control or yoga practic...
journal_title:BioMed research international
pub_type: 杂志文章,随机对照试验
doi:10.1155/2016/5387258
更新日期:2016-01-01 00:00:00
abstract:Background:Long noncoding RNAs (lncRNAs) play a crucial role in varieties of biological processes. This study is aimed at investigating meniscal degeneration-specific lncRNAs and mRNAs and their related networks in knee osteoarthritis (KOA). Methods:The dataset GSE98918, which included 24 meniscus samples and related ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/2123787
更新日期:2020-05-20 00:00:00
abstract::The role of α-fetoprotein (AFP) in the surveillance and diagnosis of hepatocellular carcinoma (HCC) has been questioned in recent years due to its low sensitivity and specificity. In addition to AFP, several new serum biomarkers, such as lens culinaris agglutinin-reactive fraction of AFP (AFP-L3) and des-gamma-carboxy...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5087643
更新日期:2020-09-17 00:00:00
abstract::Human amniotic fluid and a mixture of eight fatty acids (FAT-M) identified in this maternal fluid (C12:0, lauric acid, 0.9 μ g%; C14:0, myristic acid, 6.9 μ g%; C16:0, palmitic acid, 35.3 μ g%; C16:1, palmitoleic acid, 16.4 μ g%; C18:0, stearic acid, 8.5 μ g%; C18:1 cis, oleic acid, 18.4 μ g%; C18:1 trans, elaidic aci...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/121794
更新日期:2013-01-01 00:00:00
abstract::The prediction of RNA-binding proteins is one of the most challenging problems in computation biology. Although some studies have investigated this problem, the accuracy of prediction is still not sufficient. In this study, a highly accurate method was developed to predict RNA-binding proteins from amino acid sequence...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/425810
更新日期:2015-01-01 00:00:00
abstract:Introduction:An increased number of survivors have emerged from the 2014 West African Ebola Virus Disease (EVD) epidemic. Post-Ebola Syndrome (PES) is a group of physical and psychological symptoms affecting EVD survivors. This study aimed to estimate the prevalence of PES among EVD survivors in Montserrado County, Lib...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/1909410
更新日期:2018-06-28 00:00:00
abstract:Background:Currently, effective genetic markers are limited to predict the clinical outcome of melanoma. High-throughput multiomics sequencing data have provided a valuable approach for the identification of genes associated with cancer prognosis. Method:The multidimensional data of melanoma patients, including clinic...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5323614
更新日期:2020-05-08 00:00:00
abstract::Introduction. Second-line antituberculosis drugs (SLDs) are used for treating multidrug-resistant tuberculosis (MDR-TB). Prolonged delays before confirming MDR-TB with drug susceptibility testing (DST) could result in transmission of drug-resistant strains and inappropriate use of SLDs, thereby increasing the risk of ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/2628913
更新日期:2016-01-01 00:00:00
abstract::The objective of the present investigation was to study the effect of combination of telmisartan with cisplatin in oral cancer cachexia induced by applying 0.5% 4-nitroquinoline-1-oxide (4-NQO) in propylene glycol to tongue, thrice a week for 8 weeks. From 8th to 22nd week, cisplatin (0.23 mg/kg, i.v.) was administere...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/642848
更新日期:2013-01-01 00:00:00
abstract:INTRODUCTION:The aim of our work was to investigate the causal connection between M1 and M2 macrophage phenotypes occurrence and prostate cancer, their correlation with tumor extension (ECE), and biochemical recurrence (BR). PATIENT AND METHODS:Clinical and pathological data were prospectively gathered from 93 patient...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/486798
更新日期:2014-01-01 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) is rapidly becoming the most prevalent cause of liver disease worldwide and afflicts adults and children as currently associated with obesity and insulin resistance. Even though lately some advances have been made to elucidate the mechanism and causes of the disease much remain...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/984578
更新日期:2015-01-01 00:00:00
abstract::Background. Surgical treatment of proximal humeral fractures (PHF) in osteoporotic bone of elderly patients is challenging. The aim of this retrospective study was to evaluate the clinical and radiological outcome after percutaneous reduction and internal fixation of osteoporotic PHF in geriatric patients using the se...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/6451849
更新日期:2016-01-01 00:00:00
abstract::Immunodeficiency is associated with higher cancer incidence. However, it is unknown whether there is a link between immunodeficiency and development of multiple primary malignancies. In the present study we analyse this link focusing on kidney-transplanted patients, as they are at higher risk of developing cancer due ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/183523
更新日期:2015-01-01 00:00:00
abstract::Toll-like receptors (TLRs), a critical family of pattern recognition receptors (PRRs), are responsible for the innate immune responses via signalling pathways to provide effective host defence against pathogen infections. However, TLR-signalling pathways are also likely to stringently regulate tissue maintenance and h...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/945169
更新日期:2014-01-01 00:00:00
abstract:Background:Statins are commonly used in the secondary prevention of coronary artery disease. Studies have shown that the rate of statin use is low among patients with coronary artery disease. In this study, we aimed to investigate the reasons for poor patient compliance with statin treatment. Methods:A total of 504 pa...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/8961690
更新日期:2018-06-07 00:00:00
abstract:Background:Flaviviridae viruses are single-stranded, positive-sense RNA viruses, which threat human constantly mediated by mosquitoes, ticks, and sandflies. Considering the recent increase in the prevalence of the family virus and its risk potential, we investigated the codon usage pattern to understand its evolutionar...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/5857285
更新日期:2019-06-27 00:00:00
abstract:INTRODUCTION:The PiCCO transpulmonary thermodilution technique provides two indices of cardiac systolic function, the cardiac function index (CFI) and the global ejection fraction (GEF). Both appear to be correlated with left ventricular ejection fraction (LVEF) measured by echocardiography in patients with circulatory...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/598029
更新日期:2014-01-01 00:00:00
abstract::Previous study showed that East Asian mtDNA haplogroups, especially those of Koreans, could be successfully assigned by the coupled use of analyses on coding region SNP markers and control region mutation motifs. In this study, we tried to see if the same triple multiplex analysis for coding regions SNPs could be also...
journal_title:BioMed research international
pub_type: 历史文章,杂志文章
doi:10.1155/2015/850648
更新日期:2015-01-01 00:00:00
abstract::This study was aimed at investigating the changes in the degree of weight support loaded on the cane and paretic-side lower limb muscle activation according to the types of cane and cane-supported gait using a weight-support feedback cane (WSFC). Eleven hemiparetic stroke patients were recruited from a local rehabilit...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9127610
更新日期:2020-09-23 00:00:00
abstract::Breast cancer mortality disparities continue, particularly for uninsured and minority women. A number of effective evidence-based interventions (EBIs) exist for addressing barriers to mammography screening; however, their uptake and use in community has been limited. Few cancer-specific studies have evaluated adapted ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/240240
更新日期:2015-01-01 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::The microbial resistance of fungi and bacteria is currently considered a major public health problem. Esters derived from cinnamic acid have a broad spectrum of pharmacological properties that include antimicrobial activity. In this study, a collection of structurally related 4-chlorocinnamic acid esters was prepared ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/3941242
更新日期:2019-04-23 00:00:00
abstract:OBJECTIVES:CD57 is normally found on NK-cells, but little is known about its expression in prostatic tissue. METHODS:We investigated CD57 expression by immunohistochemistry using tissue microarrays containing 3262 prostate cancers (PCa), lymph node metastases, and benign prostatic tissue. The results were compared wit...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/356427
更新日期:2014-01-01 00:00:00
abstract::We previously reported that Runx2/miR-3960/miR-2861 regulatory feedback loop stimulates osteoblast differentiation. However, the effect of this feedback loop on the osteogenic transdifferentiation of vascular smooth muscle cells (VSMCs) remains unclear. Our recent study showed that miR-2861 and miR-3960 expression inc...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/624037
更新日期:2015-01-01 00:00:00
abstract::Chronic obstructive pulmonary disease (COPD) features chronic inflammatory reactions of both intra- and extrapulmonary nature. Moreover, COPD is associated with abnormal glucose and lipid metabolism in patients, which influences the prognosis and chronicity of this disease. Abnormal glucose and lipid metabolism are al...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2020/4574509
更新日期:2020-04-06 00:00:00
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
更新日期:2016-01-01 00:00:00
abstract::Molecular epidemiology has revealed that Mycobacterium tuberculosis (Mtb), formerly regarded as highly conserved species, displays a considerable degree of genetic variability that can influence the outcome of the disease as well as the innate and adaptive immune response. Recent studies have demonstrated that Mtb fam...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/741309
更新日期:2014-01-01 00:00:00
abstract::The aim of this study was to determine the capacity of biofilm formation of atypical enteropathogenic Escherichia coli (aEPEC) strains on abiotic and biotic surfaces. Ninety-one aEPEC strains, isolated from feces of children with diarrhea, were analyzed by the crystal violet (CV) assay on an abiotic surface after 24 h...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/845147
更新日期:2014-01-01 00:00:00