Abstract:
:Polymethylmethacrylate (PMMA) bone cement is a popular bone void filler for vertebroplasty. However, the use of PMMA has some drawbacks, including the material's excessive stiffness, exothermic polymerization, and short handling time. This study aimed to create an ideal modified bone cement to solve the above-mentioned problems. Modified bone cements were prepared by combining PMMA with three different volume fractions of castor oil (5%, 10%, and 15%). The peak polymerization temperatures, times to achieve the peak polymerization temperature, porosities, densities, modulus and maximum compression strengths of standard (without castor oil), and modified cements were investigated following storage at ambient temperature (22°C) or under precooling conditions (3°C). Six specimens were tested in each group of the aforementioned parameters. Increasing castor oil content and precooling treatment effectively decreased the peak polymerization temperatures and increased the duration to achieve the peak polymerization temperature (P < 0.05). Furthermore, the mechanical properties of the material, including density, modulus, and maximum compression strength, decreased with increasing castor oil content. However, preparation temperature (room temperature versus precooling) had no significant effect (P > 0.05) on these mechanical properties. In conclusion, the addition of castor oil to PMMA followed by precooling created an ideal modified bone cement with a low modulus, low polymerization temperature, and long handling time, enhancing its applicability and safety for vertebroplasty.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Tai CL,Lai PL,Lin WD,Tsai TT,Lee YC,Liu MY,Chen LHdoi
10.1155/2016/7901562subject
Has Abstractpub_date
2016-01-01 00:00:00pages
7901562eissn
2314-6133issn
2314-6141journal_volume
2016pub_type
杂志文章abstract::Colorectal cancer, a malignant neoplasm that occurs in the colorectal mucosa, is one of the most common types of gastrointestinal cancer. Colorectal cancer has been studied extensively, but the molecular mechanisms of this malignancy have not been characterized. This study identified and verified core genes associated...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/8082697
更新日期:2020-05-08 00:00:00
abstract:Background:Neonatal jaundice is common a clinical problem worldwide. Globally, every year, about 1.1 million babies develop severe hyperbilirubinemia with or without bilirubin encephalopathy and the vast majority reside in sub-Saharan Africa and South Asia. Strategies and information on determinants of neonatal jaundic...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/4743974
更新日期:2020-10-21 00:00:00
abstract::The aim of this study was to investigate the anticancer and antioxidant activities as well as the safety of the brown algae Dictyota dichotoma of the Western seacoast of Yemen. Cytotoxicity of methanol extract of D. dichotoma and several of its fractions, petroleum ether, chloroform, ethyl acetate, n-butanol, and aque...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/2425693
更新日期:2020-02-17 00:00:00
abstract:Background:Drug-induced acute kidney injury (D-AKI) is increasingly common and can extend the hospital length of stay and increase mortality. This study is aimed at analyzing the clinical characteristics of hospitalized patients with D-AKI and the associated risk factors in a multidrug environment. Methods:A retrospec...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9742754
更新日期:2020-09-14 00:00:00
abstract::Autophagy is involved in the development of numerous illnesses, including ischemia/reperfusion (I/R). Endothelial nitric oxide synthase (eNOS) participates in the protective effects of ischemic postconditioning (IPostC). However, it remains unclear whether eNOS-mediated autophagy serves as a critical role in IPostC in...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/5201014
更新日期:2019-02-10 00:00:00
abstract::Renal dysfunction is one of the most common complications of liver cirrhosis and is associated with increased morbidity and mortality. However, no available technology can simultaneously support liver and renal function in these patients. The aim of this study was to evaluate the safety and efficacy of an artificial l...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/7456898
更新日期:2018-05-24 00:00:00
abstract::Exposure to a variety of environmental factors such as salinity, drought, metal toxicity, extreme temperature, air pollutants, ultraviolet-B (UV-B) radiation, pesticides, and pathogen infection leads to subject oxidative stress in plants, which in turn affects multiple biological processes via reactive oxygen species ...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2019/9732325
更新日期:2019-05-08 00:00:00
abstract::Stem cells are biological cells that can self-renew and can differentiate into multiple cell lineages. Stem cell-based therapy is emerging as a promising alternative therapeutic option for various disorders. Mesenchymal stem cells (MSCs) are multipotent adult stem cells that are isolated from various tissues and can b...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2019/6104738
更新日期:2019-01-29 00:00:00
abstract::Infective endocarditis (IE) is a life-threatening disease that is associated with high morbidity and mortality. Its long-term prognosis strongly depends on a timely and optimized antibiotic treatment. Therefore, identification of the causative pathogen is crucial and currently based on blood cultures followed by chara...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/7923874
更新日期:2016-01-01 00:00:00
abstract::Nuclear factor-kappa B (NF-κB) is the key part of multiple signal transduction of inflammation in the pathogenesis of diabetic nephropathy (DN). The ubiquitin-proteasome system is extensively involved in the regulation of the NF-κB pathway. Cylindromatosis (CYLD) has deubiquitinase activity and acts as a negative regu...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/3982906
更新日期:2017-01-01 00:00:00
abstract:INTRODUCTION:Cerebral emboli may occur in subarachnoid hemorrhage (SAH) and intracranial aneurysm surgery. Although embolic signs (ES) have been reported in SAH, their origin remains unclear. The aim of this study was to report the detection of ES during routine TCD monitoring in patients with aneurysmal SAH. METHODS:...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/153714
更新日期:2015-01-01 00:00:00
abstract:Introduction:SATIS-Stroke was developed to measure satisfaction regarding activities and participation among stroke survivors based on the concepts contained in the International Classification of Functioning, Disability, and Health. However, this measure is only available in English and French. Objective:Perform the ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/8054640
更新日期:2019-02-18 00:00:00
abstract::Restriction enzymes are the main defence system against foreign DNA, in charge of preserving genome integrity. Lactococcus raffinolactis BGTRK10-1 expresses LraI Type II restriction-modification enzyme, whose activity is similar to that shown for EcoRI; LraI methyltransferase protects DNA from EcoRI cleavage. The gene...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/5657085
更新日期:2018-01-29 00:00:00
abstract::Canine inflammatory mammary cancer (IMC) shares clinical and histopathological characteristics with human inflammatory breast cancer (IBC) and has been proposed as a good model for studying the human disease. The aim of this study was to evaluate the capacity of female and male mice to reproduce IMC and IBC tumors and...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/8909878
更新日期:2016-01-01 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::The aim of the present study was to analyze the relationship between the sum of the four limbs' pulse pressure (Sum-PP) and brachial-ankle pulse wave velocity (baPWV) and atherosclerosis risk factors and evaluate the feasibility of Sum-PP in diagnosing atherosclerosis systemically. For the purpose, a cross-sectional s...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/434516
更新日期:2015-01-01 00:00:00
abstract::Mesenchymal stem cells (MSCs) therapy has been applied to a wide range of diseases with excessive immune response, including inflammatory bowel disease (IBD), owing to its powerful immunosuppression and its ability to repair tissue lesions. Different sources of MSCs show different therapeutic properties. Engineering m...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2018/9652817
更新日期:2018-12-26 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: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::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
abstract::[This corrects the article DOI: 10.1155/2017/8193821.]. ...
journal_title:BioMed research international
pub_type: 已发布勘误
doi:10.1155/2017/6418529
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVE:Using a swine model of acute myocardial ischemia, we sought to validate N-(11)C-methyl-dopamine ((11)C-MDA) as an agent capable of imaging cardiac sympathetic nerve injury. METHODS:Acute myocardial ischemia was surgically generated in Chinese minipigs. ECG and serum enzyme levels were used to detect the pres...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/8430637
更新日期:2016-01-01 00:00:00
abstract:OBJECT:The aim of this report was to explore the clinical presentation, radiological features, treatment methods, and outcome of micro-AVMs presenting with intracerebral hemorrhage. METHODS:The clinical data, radiological features, treatment, and follow-up results for a consecutive series of 13 cases with micro-AVMs w...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/257153
更新日期:2015-01-01 00:00:00
abstract::Parkinson's disease (PD) is a neurodegenerative disorder caused by selective loss of dopaminergic neurons in the substantia nigra pars compacta which leads to dysfunction of cerebral pathways critical for the control of movements. The diagnosis of PD is based on motor symptoms, such as bradykinesia, akinesia, muscular...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/519816
更新日期:2014-01-01 00:00:00
abstract:Objective:Study the effect of quality control circle (QCC) in promoting the usage of rubber dams (RD) in root canal treatment of chronic pulpitis in primary teeth. Methods:Set up a quality control group to increase the amount of rubber dams used in the treatment of chronic pulpitis in primary teeth. Monthly monitoring...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5397838
更新日期:2020-02-24 00:00:00
abstract:Background:The purpose of this study was to evaluate the association between the non-high-density lipoprotein cholesterol (non-HDL-C) to high-density lipoprotein cholesterol (HDL-C) ratio and the risk of coronary artery disease (CAD). We also explored the potential role of non-HDL-C/HDL-C in the prognosis of CAD. Meth...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/7146028
更新日期:2020-03-07 00:00:00
abstract:Objective:This study aimed to investigate the effects of Ang-1 on neovascularization of diabetic organs by subcutaneous Matrigel angiogenesis model, established in type 1 diabetic rats. Methods:Ang-1 adenoviral vector was constructed. The rat model was established by STZ and divided into four group. The Matrigel was i...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/2016972
更新日期:2019-01-09 00:00:00
abstract::ADP-glucose pyrophosphorylase (AGPase) is the first rate limiting enzyme of starch biosynthesis pathway and has been exploited as the target for greater starch yield in several plants. The structure-function analysis and substrate binding specificity of AGPase have provided enormous potential for understanding the rol...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/583606
更新日期:2014-01-01 00:00:00
abstract::Calcium phosphate cement (CPC) has good release efficiency and has therefore been used as a drug delivery system for postoperative infection. The release profile of CPC has mainly been evaluated by in vitro studies, which are carried out by immersing test specimens in a relatively large amount of solvent. However, it ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/4560647
更新日期:2018-05-15 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