Time filter

Source Type

Li X.,Ningbo University | Zhao Y.,Ningbo University | Bing Y.,Ningbo University | Li Y.,Ningbo University | And 4 more authors.
ACS Applied Materials and Interfaces | Year: 2013

The macroporous materials were prepared from the transformation of cuttlebone as biotemplates under hydrothermal reactions and characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric/differential thermal analyses (TG-DTA), and scanning electron microscopy (SEM). Cell experimental results showed that the prepared materials as bone tissue engineering scaffolds or fillers had fine biocompatibility suitable for adhesion and proliferation of the hMSCs (human marrow mesenchymal stem cells). Histological analyses were carried out by implanting the scaffolds into a rabbit femur, where the bioresorption, degradation, and biological activity of the scaffolds were observed in the animal body. The prepared scaffolds kept the original three-dimensional frameworks with the ordered porous structures, which made for blood circulation, nutrition supply, and the cells implantation. The biotemplated syntheses could provide a new effective approach to prepare the bone tissue engineering scaffold materials. © 2013 American Chemical Society. Source

Kong J.,Shandong University | Yang Y.,Ningbo Medical Treatment Center | Sun S.,Shandong University | Xie J.,Shandong University | And 2 more authors.
Mediators of Inflammation | Year: 2016

Synovitis is an important disease that causes intractable pain in TMJ. Some investigations suggested that the increasing expression of IL-1β secreted by synovial lining cells plays an important role in synovial inflammation and cartilage destruction in TMJ. In our previous research, the results demonstrated that TLR4 is involved in the expression of IL-1β in SFs from TMJ with lipopolysaccharide stimulation. However, the inflammatory response that occurred in synovial membrane is not caused by bacterial infection. In the current study, we investigated whether or not TLR4 participates in the inflammatory responses and the expression of IL-1β in synovial membrane of rats induced by occlusal interference. The results showed that obvious inflammation changes were observed in the synovial membranes and the expression of TLR4 and IL-1β was increased at both mRNA and protein levels in the occlusal interference rats. In addition, the inflammation reactions and the increased expression of IL-1β could be restrained by treatment with TAK-242, a blocker of TLR4 signaling. The results prompted us that the activation of TLR4 may be involved in the inflammatory reactions and increased expression of IL-1β in patients with synovitis and participate in the mechanisms of the initiation and development of synovial injury by regulating the expression of inflammatory mediators like IL-1β in synovial membranes. © 2016 Jingjing Kong et al. Source

Liao Q.,Ningbo University | Shen J.,Sun Yat Sen University | Liu J.,Ningbo University | Sun X.,Sun Yat Sen University | And 8 more authors.
Parasitology Research | Year: 2014

The life cycle of Plasmodium falciparum is very complex, with an erythrocytic stage that involves the invasion of red blood cells and the survival and growth of the parasite within the host. Over the past several decades, numbers of studies have shown that proteins exported by P. falciparum to the surface of infected red blood cells play a critical role in recognition and interaction with host receptors and are thus essential for the completion of the life cycle of P. falciparum. However, little is known about long noncoding RNAs (lncRNAs). In this study, we designed a computational pipeline to identify new lncRNAs of P. falciparum from published RNA-seq data and analyzed their sequences and expression features. As a result, 164 novel lncRNAs were found. The sequences and expression features of P. falciparum lncRNAs were similar to those of humans and mice: there was a lack of sequence conservation, low expression levels, and high expression coefficient of variance and co-expression with nearby coding sequences in the genome. Next, a coding/noncoding gene co-expression network for P. falciparum was constructed to further annotate the functions of novel and known lncRNAs. In total, the functions of 69 lncRNAs, including 44 novel lncRNAs, were annotated. The main functions of the lncRNAs included metabolic processes, biosynthetic processes, regulation of biological processes, establishment of localization, catabolic processes, cellular component organization, and interspecies interactions between organisms. Our results will provide clues to further the investigation of interactions between human hosts and parasites and the mechanisms of P. falciparum infection. © 2014 Springer-Verlag. Source

Qian X.,Ningbo Medical Treatment Center | Chen Y.,Zhejiang University | Wan F.,Zhejiang University
Oncology Letters | Year: 2014

Granular cell tumor of the breast (GCTB) is a rare tumor, particularly in lactating women. This tumor can clinically and radiologically mimic breast carcinoma, which poses particular problems. The association between GCTB and sex hormones should receive particular attention. The present study reports a case of GCTB in a lactating patient. In this tsudy, the case of a 29-year old female who presented with a mass in the right breast is decribed. Immunohistochemical and cytological analysis revealed a GCT and subsequently wide local excision was performed. At 15 months following surgery, the patient is well and no tumor recurrence has been identified. A comprehensive review of the literature was also performed to assess and compare all cases of GCTB, with particular attention to hyperestrogenic and hyperprolactinemic states. Further studies are required to explore the association between granular cell tumors and hyperestrogenic and hyperprolactinemic states. © Spandidos Publications 2014. All rights reserved. Source

Yang B.,Wenzhou Medical College | Yang B.,Ningbo Medical Treatment Center | Chen W.,Wenzhou Medical College | Yang Y.,Wenzhou Medical College | And 7 more authors.
American Journal of Neuroradiology | Year: 2012

BACKGROUND AND PURPOSE: Stenosis of the carotid artery may cause reduced hemodynamic and neural function that may be ameliorated with CAS. The goal of this study was to evaluate short- and long-term hemodynamic and clinical effects after CAS. MATERIALS AND METHODS: Hemodynamic parameters were acquired by PCT within 1 week before CAS and at 1 week and 1 year (10-13 months) after CAS. In ACA territory, MCA territory, PCA territory, basal ganglia, anterior and posterior CWS and IWS, the rCBF, rCBV, and rMTT were determined in 20 patients with unilateral carotid artery stenosis who underwent CAS. MR and noncontrast CT were performed within 1 week before CAS. Noncontrast CT and carotid arteriography were performed immediately after CAS. Carotid arteriography was performed 1 year after CAS. MRS was performed in 3 measurements. The variance analysis was performed to determine whether there were significant differences among the 3 measurements. RESULTS: No significant differences were found among rCBV in any territory (P > .05). In the non- PCA territories, rMTT decreased and rCBF increased at 1 week after CAS (P < .01), but there was no significant difference between 1-week and 1-year effects (P > .05). For MR spectroscopy, no significant differences were found between 1 week after CAS and pretreatment (P > .05); the 1-year scores improved significantly (P < .01). CONCLUSIONS: The long-term hemodynamic and clinical results after treatment validated that CAS is a durable procedure. The 1-week hemodynamic effects can predict long-term effects. Source

Discover hidden collaborations