Objective:To assess the effect of basic fibroblast growth factor(bFGF) and chitosan(a water soluble derivation) on human periodontal ligament fibroblasts(HPDLFs). Methods:In vitro cultured HPDLFs of passage 5-7 were in culture medium only(group 1), or exposed to 10 ng/ml of bFGF(group 2), 10 ng/ml of bFGF combined with 0.2 mg/ml chitosan(group 3),10 ng/ml of bFGF combined with 2 mg/ml chitosan(group 4),0.2 mg/ml of chitosan(group 5) or 2 mg/ml of chitosan(group 6) for 5 days respectively. Cell proliferation was examined by MTT assay,alkaline phosphatase activity and osteocalcin synthesis were measured by AMP method and radioimmunoassay respectively.Results:Higher proliferation of HPDLFs was observed in group 2 and 3,higher alkaline phosphatase activity in group 5 and 6, and higher osteocalcin synthesis in group 3 and 4.Conclusions:bFGF combined with chitosan(0.2 mg/ml) may increase the proliferation of HPDLFs, stimulate HPDLFs to differentiate into osteoblasts.

This paper introduced a hand function rehabilitation system based on motor imagery (MI) brain-computer interface for hand function rehabilitation of stroke patients. The rehabilitation system contains three subsystems. Offline training subsystem displays the blank screen, a left or right hand movement video and arrow in turn, which respectively reminders patients to rest and make preparations for MI and instruct them how to do MI, and be doing MI. Finally, the patients' electroephalography (EEG) signals are acquired and processed togenerate a recognition model. Model update online training subsystem presents the black screen and a left or right arrow, the meanings ofwhich are the same as those in offline training subsystem. Then the acquired EEG signals are analyzed according to the established recognitionmodel. Next, the analysis result is derived to control the hand movement video to be played. The video can also act as a visual feedback,which makes patients' EEG signals easier to be recognized. The updated and more effective recognition model is built at last. Virtual reality(VR) online training subsystem constructs 3D grid models of VR scene, a 3D man model and its hand animations in the 3Dmax. Then, all ofthem are imported into Unity3D. The control methods of the animations are also designed in Unity3D. In the end, the patients' EEG signalsare analyzed according to the updated recognition model, thus controlling the hand movements of the 3D man in real time. The developedsystem has many characteristics, such as multilevel training and more immersion, which hopefully promotes the plasticity of central nervoussystem. The designed system provides new treatments for post-stroke hand function rehabilitation and further lays the foundation for family-mode rehabilitation.

Objective:To evaluate the efficacy and safety of combined cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) with lobaplatin and docetaxel for treatment of synchronous peritoneal carcinomatosis (PC) from gastric cancer. Methods:Fifty patients with synchronous PC from gastric cancer were treated by 52 CRS+HIPEC procedures with 100 mg of lobaplatin and 120 mg of docetaxel in 12000 mL of normal saline at (43 ± 0.5)℃for 60 min. The primary and secondary endpoints were overall survival (OS) and perioperative safety profiles, respectively. Results:At a median follow-up of 22.5 months, the median OS rate was 14.3 (95%CI:7.6-21.0) months, and the 1-, 2-, and 3-year survival rates were 58%, 40%, and 32%, respectively. No perioperative deaths or serious adverse events occurred in 12 cases (23.1%). Multivariate analysis indicated that completeness of cytoreduction, nor-mality of perioperative tumor markers, and adjuvant chemotherapy of more than six cycles were independent predictors for improved survival. Conclusions:CRS+HIPEC with lobaplatin and docetaxel could improve the OS and ensure perioperative safety of patients with synchronous PC from gastric cancer.

[Objective]To investigate the expression change of miR-134 in methamphetamine(MA)-induced neuronal injury in PC12 cells and its effect on neuronal excitability and understand the pathogenesis of methamphetamine-induced neuronal injury.[Methods]PC12 cells in the logarithmic phase were divided into control group and MA group. The MA group was treated with 800μmol/L MA to establish the model of neuronal injury. The cellular injury was observed under microscope. The neuronal apoptosis was detected by Hoechst3342/PI double staining,and miR-134 expression was measured by using real-time quantitative PCR (Real time-PCR). Furthermore,we constructed miR-134 interference vector and observed its effect on evoked action potential.[Results]The cultured PC12 cells were damaged under the 800 μmol/LMA treatment ,and neurites became shorter ,the apoptotic cells were evidence. Real time-PCR showed that miR-134 expression was increased after MA treatment. Electrophysiological data showed that the evoked action potential increased after miR-134 interference.[Conclusions]High concentration of MA can induce neuronal damage and apoptosis and also increase miR-134 expression. While silence miR-134 expression can increase neuronal excitability.Our study provides an experimental basis for elucidating the possible mechanism of MA-induced neuronal injury and the role of miR-134 in neurotoxicity and neuronal excitability.

Kidney ischemia-reperfusion injury (IRI) is the major cause of poor prognosis after kidney transplantation and partial nephrectomy. Besides, it is also a critical pathophysiological process of acute kidney injury. Consequently, the prevention and treatment of kidney IRI are of significance to improve clinical prognosis of recipients undergoing kidney transplantation. However, the mechanism underlying IRI is complex, and the exact mechanism remains elusive. Inflammation, as one of the main pathogenesis of IRI, plays a significant role in IRI-induced kidney injury. Nuclear factor (NF)-κB, as a rapid response transcription factor, has been proven to be involved in the regulation of inflammation during kidney IRI. Therefore, in this article, the structure of NF-κB, the activation pattern of NF-κB signaling pathway, the regulatory mechanisms of NF-κB upstream and downstream signaling pathways in kidney IRI were reviewed, and the role of NF-κB signaling pathway in kidney IRI was investigated, aiming to provide novel clinical ideas for the prevention and treatment of kidney IRI.

Objective To illustrate the composition ratio of ERβ isoforms in paired cancerous and adjacent normal tissues from breast cancer patients.Methods Eighty-seven pairs of cancerous and adjacent normal tissues were obtained from breast cancer patients.RT-qPCR was used to determine the relative mRNA expression levels of ERβ isoforms (ER[β1,ERβ2 and ERβ5),and the composition ratios of ERβ isoforms were analyzed.Results The expression levels of all tested ERβ isoforms (ERβ1,ERβ2 and ERβ5) in breast cancer tissues were much lower than those in adjacent normal breast tissues (P ＜ 0.01).Isoform ratio analysis showed that ERβ5 was the dominant isoform in both cancerous and adjacent normal tissues with a positive detection rate of 54.02 ％ and 75.84 ％,respectively.Meanwhile,ERβ1 had the lowest detection rate (9.74 ％ and 6.77 ％ in cancerous and adjacent normal tissues,respectively).The positive rates for both ERβ1 and ERβ2 were much lower in adjacent normal tissues than those in cancer tissues (Z =-2.24,P =0.025 and Z =-4.85,P ＜ 0.01,separately),while more cancerous tissues were ERβ5-positive in comparison to adjacent normal tissues (Z =-5.32,P ＜ 0.01).Conclusions The expression levels of all the ERβ isoforms are differentially down-regulated with significant alterations in their composition ratios during breast carcinogenesis.Further understanding on molecular mechanisms underlying the differential down-regulation of ER[β isoforms will shed new light on breast carcinogenesis.

Objective To explore the clinical factors on the functional recovery of spinal cord cavernous hemangioma operation. Methods Fifty cases patients with complete spinal cord cavernous hemangioma were retrospectively analyzed their clinical data and its influence on prognosis of 2 years. Single factor and multiple factors analysis were performed. Results Compared with the preoperative stage,the grade of Aminoff-Logue score of 28 cases(50. 9%)had improved at least one grade,14 cases(25. 5%)patients with no significant changes and 13 cases(23. 6%)with decreased one grade at least. Logistic regression model showed that patients with clinical types(OR=3. 27,95%CI 2. 34-15. 83,P=0. 006),the time of the attacks to the surgery(OR=2. 93,95%CI 1. 41-10. 61,P=0. 012),and the attacks to the operation time( OR=4. 31,95%CI 2. 46 -12. 32,P = 0. 019 ) were related to neurological function recovery of spinal cord cavernous hemangiomas. Conclusion For patients with SCH dysfunction,regardless of what kind of clinical types of neurological dysfunction extent,should receive surgical treatment to improve neurological function recovery rate as soon as possible.

The cardiovascular disease has become one of the important chronic health problems for humans. At present, the research on the traditional risk factors of cardiovascular disease has been studied from the relevance to the mechanism. In this paper, the recent progress of the traditional risk factors of CVD and the impact mechanism are reviewed in order to provide a basis for the prevention, treatment and nursing of cardiovascular diseases.

Objective:To investigate whether the omental-adipose stromal cells (O-ASCs) exposing to gastric cancer-conditioned medi-um (CM) could be inducted to differentiate into carcinoma-associated fibroblasts (CAFs) and the effect of ERK signaling pathway in the process. Methods: We identified O-ASCs by examining their ability to differentiate osteogenic and adipogenic lineages and through flow cytometry. O-ASCs were co-cultured with MGC803 and SGC7901CM. The expression of CAFs markers (α-SMA, FSP-1, and vimentin) and paracrine factors (VEGFA, TGF-β1, FAP, and SDF-1) were evaluated by RT-PCR and Western blot. In vitro cultures of O-ASCs were divided into three groups:the control, SGC7901-CM, and SGC7901-CM+U0126 groups. Cells were collected after 12 h. West-ern blot was performed to evaluate the expression ofα-SMA, FSP-1, ERK, and p-ERK1/2. Results:The primary cells were O-ASCs. The expression levels of CAFs markers (α-SMA, FSP-1, and vimentin) and O-ASC paracrine factors (VEGFA, TGF-β1, FAP, and SDF-1) clearly in-creased (P<0.05). In comparison with the control, the expression of ERK in SGC7901-CM group did not change (P>0.05), while the ex-pression of p-ERK1/2,α-SMA, and FSP-1 significantly improved (P<0.05). Comparison of SGC 7901-CM+U0126 and SGC 7901-CM groups showed that the expression levels of ERK had no statistical difference (P>0.05), while the expression levels of p-ERK1/2,α-SMA, and FSP-1 decreased (P<0.05). Conclusion:O-ASCs participate in the peritoneal metastasis of gastric cancer through differentiation by CAF and paracrine factors. The ERK signaling pathway is important in the differentiation of O-ASCs towards CAFs.

Renal ischemia-reperfusion injury (IRI) commonly occurs in renal transplantation, which is an important pathophysiological process that causes acute renal failure and severely affects clinical prognosis of the recipients. Inflammatory response plays a critical role in the pathogenesis and pathological process of IRI. Activated NOD-like receptor protein 3(NLRP3) inflammasome can mediate the maturation and release of various pro-inflammatory cytokines, thereby regulating the inflammatory response and relevant cell functions. In this article, the mechanism underlying NLRP3 inflammasome and its related inflammatory signaling pathway in renal IRI were reviewed, aiming to provide novel ideas for clinical prevention and treatment of renal IRI.