Abstract:
:Bone loss and fractures may call for the use of bone substituting materials, such as calcium phosphate cements (CPCs). CPCs can be degradable, and, to determine their limitations in terms of applications, their mechanical as well as chemical properties need to be evaluated over longer periods of time, under physiological conditions. However, there is lack of data on how the in vitro degradation affects high-strength brushite CPCs over longer periods of time, that is, longer than it takes for a bone fracture to heal. This study aimed at evaluating the long-term in vitro degradation properties of a high-strength brushite CPC in three different solutions: water, phosphate buffered saline, and a serum solution. Microcomputed tomography was used to evaluate the degradation nondestructively, complemented with gravimetric analysis. The compressive strength, chemical composition, and microstructure were also evaluated. Major changes from 10 weeks onwards were seen, in terms of formation of a porous outer layer of octacalcium phosphate on the specimens with a concomitant change in phase composition, increased porosity, decrease in object volume, and mechanical properties. This study illustrates the importance of long-term evaluation of similar cement compositions to be able to predict the material's physical changes over a relevant time frame.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Ajaxon I,Öhman C,Persson Cdoi
10.1155/2015/575079subject
Has Abstractpub_date
2015-01-01 00:00:00pages
575079eissn
2314-6133issn
2314-6141journal_volume
2015pub_type
杂志文章abstract:CONTEXT:The 7th (2009) edition of the AJCC melanoma staging system incorporates tumor (Breslow) thickness, MR, and ulceration in stratifying T1 primary melanomas. Compared to the prior 6th (2001) edition, MR has replaced CL for thin melanomas. OBJECTIVE:We sought to identify and report differences of the classificatio...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/898719
更新日期:2013-01-01 00:00:00
abstract::Sepsis is a severe and progressive disease characterized by systemic inflammatory response syndrome (SIRS). CD40 serves as a vital link between immune response and inflammation. This study was designed to investigate the potential association between a functional single-nucleotide polymorphism (SNP) of CD40 (rs1883832...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2018/7497314
更新日期:2018-03-26 00:00:00
abstract:Objective:Hepatitis B virus (HBV) causes inflammation of the liver and is the leading cause of both liver cirrhosis (LC) and hepatocellular carcinoma (HCC). Serine protease inhibitor Kazal type 1 (SPINK1) is an acute-phase response protein that is overexpressed in liver cancer tissue. This study investigated the clinic...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/9321494
更新日期:2019-05-22 00:00:00
abstract::The aim of the study was to assess the granulocyte colony-stimulating factor (G-CSF) effects on unresponsive thin (<7 mm) endometrium in women undergoing in vitro fertilization (IVF). We included thirty-seven subjects who had thin unresponsive endometrium on the day of triggering ovulation. These patients also failed ...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2014/913235
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:The prognosis of patients with advanced oropharyngeal carcinoma (OPSCC) is generally poor. The aim of this study is to investigate the different therapeutic approaches and identify prognostic factors associated with a worse outcome for patients treated for T4a OPSCC, in order to improve treatment selection f...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/390825
更新日期:2014-01-01 00:00:00
abstract:Background:Although both nonfunctional paraganglioma of the bladder (NPB) and urothelial carcinoma of the bladder (UCB) are subtypes of bladder tumors, they are entirely different entities with distinct tissue origins and anatomical locations. However, NPB is frequently misdiagnosed as UCB chiefly due to the similariti...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/1097149
更新日期:2019-11-06 00:00:00
abstract:Objective:We identified differentially expressed microRNAs (DEMs) between esophageal carcinoma (ESCA) tissues and normal esophageal tissues. We then constructed a novel three-miRNA signature to predict the prognosis of ESCA patients using bioinformatics analysis. Materials and Methods. We combined two microarray profil...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5973082
更新日期:2020-02-10 00:00:00
abstract::Single-sided deafness (SSD) induces cortical neural plastic changes according to duration of deafness. However, it is still unclear how the auditory cortical changes accompany the subcortical neural changes. The present study aimed to find the neural plastic changes in the cortical and subcortical auditory system foll...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/8624745
更新日期:2018-11-26 00:00:00
abstract::Understanding the mechanism behind the structure of the internal cellular clock can lead to advances in the knowledge of origins of pairs of monozygotic twins and higher order multiples as well as other biological phenomena. To gain insight into this mechanism, we analyze possible cell labeling schemes that model an o...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/628092
更新日期:2015-01-01 00:00:00
abstract:Objectives:To evaluate the effects of pentobarbital dosages on lower urinary tract function and to define an appropriate dosage of sodium pentobarbital that would be suitable for urodynamic studies in which recovery from anesthesia and long term survive were needed for subsequent experiment. Methods:Twenty-four 8-week...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/6109497
更新日期:2020-06-11 00:00:00
abstract::Mammalian protection against leishmanial infection depends on the development of an effective immune response. Zoonotic visceral leishmaniasis (ZVL) patients are usually unable to mount an effective immune response against the parasite and indeed appear to be severely immunosuppressed. This suppression has strong nons...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/5861453
更新日期:2017-01-01 00:00:00
abstract:Introduction:The aim of the study was to analyze which variables influenced the completion of a cold loop hysteroscopic myomectomy in a one-step procedure in a large cohort of patients. Materials and Methods:A retrospective cohort study of 1434 cold loop resectoscopic myomectomies consecutively performed. The study po...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/8429047
更新日期:2018-05-20 00:00:00
abstract:Objective:The presence of radiological signs of femoroacetabular impingement (FAI) is not necessarily associated with symptoms. Hence, the prevalence of cam and pincer deformities in the overall population may be underestimated. The purpose of this study was to screen an unselected cohort of people without hip symptoms...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/8562329
更新日期:2017-01-01 00:00:00
abstract:Background:Oxycodone is a widely used opioid analgesic, which is involved in cancer pain and non-cancer pain. This study is intended to understand the publication characteristics of oxycodone research field and assess the quality of pertinent articles from 1998 to 2017. Methods:Oxycodone-related publications from 1998...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/9096201
更新日期:2019-10-31 00:00:00
abstract::Duroia macrophylla popularly known as "cabeça-de-urubú," "apuruí," or "puruí-grande-da-mata" occurs in the Amazon Forest. Its leaves and branches were collected twice and extracted with dichloromethane and methanol. All extracts were subjected to phytochemical investigation and terpenes and flavonoids were found in al...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/605831
更新日期:2013-01-01 00:00:00
abstract::Protein structure prediction (PSP) is computationally a very challenging problem. The challenge largely comes from the fact that the energy function that needs to be minimised in order to obtain the native structure of a given protein is not clearly known. A high resolution 20 × 20 energy model could better capture th...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/924137
更新日期:2013-01-01 00:00:00
abstract::The achievement of successful biostimulation of active microbiomes for the cleanup of a polluted site is strictly dependent on the knowledge of the key microorganisms equipped with the relevant catabolic genes responsible for the degradation process. In this work, we present the characterization of the bacterial commu...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/242856
更新日期:2015-01-01 00:00:00
abstract::[This corrects the article DOI: 10.1155/2019/1907906.]. ...
journal_title:BioMed research international
pub_type: 杂志文章,已发布勘误
doi:10.1155/2019/6897187
更新日期:2019-11-20 00:00:00
abstract::Bioarcheology is cross disciplinary research encompassing the study of human remains. However, life's activities have, up till now, eluded bioarcheological investigation. We hypothesized that growth lines in hair might archive the biologic rhythms, growth rate, and metabolism during life. Computational modeling predic...
journal_title:BioMed research international
pub_type: 历史文章,杂志文章
doi:10.1155/2015/818724
更新日期:2015-01-01 00:00:00
abstract::Human papillomavirus (HPV) is an etiological risk factor for oropharyngeal squamous cell carcinomas (OPSCC). Our study investigates the prevalence, prognostic, and clinicopathologic features of HPV-related oropharyngeal cancer in Northeast China and elucidates the involvement of p16 in the tumorigenesis and progressio...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/9594568
更新日期:2018-09-17 00:00:00
abstract::Individuals with X-HIGM syndrome fail to express functional CD40 ligand; consequently they cannot mount effective protective antibody responses against pathogenic bacteria. We evaluated, compared, and characterized the humoral immune response of wild type (WT) and C57-CD40L deficient (C57-CD40L(-/-)) mice infected wit...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/679850
更新日期:2015-01-01 00:00:00
abstract::The aim of this study is to inform about the development of a new semispherical surgical instrument for the bipolar multielectrode radiofrequency liver ablation. Present tools are universal; however they have several disadvantages such as ablation of healthy tissue, numerous needle punctures, and, therefore, longer op...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/532792
更新日期:2014-01-01 00:00:00
abstract::The availability of an active substance through the skin depends basically on two consecutive steps: the release of this substance from the vehicle and its subsequent permeation through the skin. Hence, studies on the specific properties of vehicles, such as their rheological behavior, are of great interest in the fie...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/818656
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Noninvasive tools to diagnose nonalcoholic fatty liver disease (NAFLD), including transient elastography (TE) and enhanced liver fibrosis panel (ELF), have only been evaluated in children with biopsy-proven NAFLD. We evaluated the prevalence of ELF and TE abnormalities in obese children without clinical live...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/457473
更新日期:2015-01-01 00:00:00
abstract::Background and Aims. CIN is a major and serious complication following PCI in patients with ACS. It is unclear whether a higher serum ferritin level is associated with an increased risk of CIN in high-risk patients. Thus, we conducted this study to assess the predictive value of SF for the risk of CIN after PCI. Metho...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/5420345
更新日期:2016-01-01 00:00:00
abstract:PURPOSE:To investigate the correlation of outer retinal layers (ORL) thickness and visual acuity (VA) in patients with diabetic macular edema (DME). METHODS:Consecutive DME patients seen at the Retina Clinic of The University of Hong Kong were recruited for OCT assessment. The ORL thickness was defined as the distance...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/981471
更新日期:2015-01-01 00:00:00
abstract::Objectives. To investigate the potential association of a set of serum cytokines with the severity of coronary artery disease (CAD). Methods. A total of 201 patients who underwent coronary angiography for chest discomfort were enrolled. The concentrations of serum IFN-γ, TNF-α, IL-2, IL-4, IL-6, IL-10, IL-9, and IL-17...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/4013685
更新日期:2017-01-01 00:00:00
abstract::Toonaciliatin K is a natural limonoid purified from the Toona ciliata Roem. var. ciliata (Meliaceae). This study is to reveal the inflammatory suppression effect of toonaciliatin K and further the intrinsic mechanism. Firstly, anti-inflammatory effect of toonaciliatin K was evaluated in lipopolysaccharide- (LPS-) indu...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/9436280
更新日期:2017-01-01 00:00:00
abstract::The proper functioning of a hospital computer system is an arduous work for managers and staff. However, inconsistent policies are frequent and can produce enormous problems, such as stolen information, frequent failures, and loss of the entire or part of the hospital data. This paper presents a new method named EMRlo...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/542016
更新日期:2015-01-01 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