1.Modified cervical single open-door laminoplasty combined with segmental lateral screw fixation for the treatment of multilevel cervical spondylotic myelopathy
Clinical Medicine of China 2017;33(7):643-647
Objective To compare the clinical effects of modified single open-door laminoplasty combined with segmental lateral screw fixation with conventional single open-door combined with continuous screw fixation in the treatment of multilevel cervical spondylotic myelopathy (MCSM).Methods Retrospective analysis was used to analyze the fifty-five cases of MCSM who underwent posterior operation in Lianyungang Hospital Affiliated to Xuzhou Medical University from March 2009 to January 2017.Among them,26 cases in the modified group were treated by modified single open-door laminoplasty combined with segmental lateral screw fixation;29 cases in the traditional group were treated by conventional single open-door combined with continuous screw fixation.JOA score collected before the operation and at the last time of the follow-up,the cervical spine mobility,cervical curvature,cervical axial symptom,C5 nerve root palsy and the incidence rate of screw fracture in both groups were compared.Operation time and the intraoperative blood loss were recorded.Results 55 cases were all followed up.The cervical spine mobility at the last time of the follow-up in the modified group was significantly higher than that of the traditional group ((39.63°±5.98°) vs.(36.14°±6.05°),P=0.036).The cervical curvature in the modified group was higher than that of the traditional group ((19.83°±5.61°) vs.(16.02°±7.05°),P=0.030).The operation time and intraoperative blood loss in the modified group were significantly lower than those of the traditional group ((116.3±13.2) min vs.(128.7±14.3) min,(186.7±39.8) ml vs.(228.7±42.5) ml,P=0.002,0.000).In the modified group,the proportion of patients with postoperative cervical axial symptom was 15.38%,the rate of C5 nerve root palsy cases was 8.69%,compared with 48.27% and 34.48%,respectively in the control group,the difference between the two groups was statistically significant (P=0.011,0.022).In the traditional group,2 cases of screw fracture were found at the last follow-up,while there was no such case in the modified group.Conclusion The modified cervical single open-door laminoplasty combined with segmental lateral screw fixation can obtain good effect of nerve decompression,maintain cervical mobility and cervical curvature,reduce the occurrence of postoperative cervical axial symptom,C5 never root palsy,screw fracture and other complications,is a safe and effective surgical method.
2.Research progress on role of chemokine receptor CCR3 signaling in allergic airway diseases.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2012;26(23):1099-1101
Allergic airway diseases have been identified as chronic inflammatory diseases of respiratory membranes, characterized by infiltration of many inflammatory cells, especially eosinophils. The expression of CCR3 is abundant on the cell surface of eosinophils. Increased accumulation of CCR3-driven inflammatory cells is thought to favor the development of allergy. In this review, we survey the properties of CCR3 and its ligands and highlight the roles of CCR3 signaling in allergic airway diseases.
Animals
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Humans
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Hypersensitivity
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metabolism
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Receptors, CCR3
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metabolism
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Respiratory System
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metabolism
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Signal Transduction
3.Influence of excipients on the mechanical properties of microcapsules
Yi LIU ; Yi FENG ; Desheng XU
Chinese Traditional Patent Medicine 1992;0(11):-
AIM: To use the increasing rate of hygroscopic weight added to represent the mechanical properties of microcapsules, and to study the influence of excipients on the mechanical properties of microcapsules. METHODS: To develop a method of processing the microcapsules, which simulates the rubbing, shearing effect on the microcapsules during manufacturing, and calculate the increasing rate of hygroscopic weight added to study the influence of excipients on the mechanical properties. RESULTS: The excipients could affect the mechanical properties of microcapsules. CONCLUSION: The mechanical properties of microcapsules is the important quality standard, We can use it for selecting excipients used for microcapsulation.
4.Primary renal lymphoma (report of 3 cases)
Chuanliang XU ; Yi LIU ; Xu GAO
Chinese Journal of Urology 2001;0(04):-
ObjectiveTo study the clinical features of primary renal lymphoma.MethodsThe clinical,radiological features,treatment and prognosis of 3 cases of primary renal lymphoma are presented and discussed.ResultsSurgical intervention was carried out in 2 cases,and radiotherapy and chemotherapy were undertaken postoperatively.The other case was treated with chemotherapy alone.One patients survived more than 2 years and 2 more than 1 year.ConclusionsRadiological features are similar to those of renal cell carcinoma. Those with a preoperative diagnosis of primary renal lymphoma should be treated with chemotherapy with or without radiotherapy depending on the histological status,stage and volume of the tumor.
5.Developments of neutrophil function and the relationship between neutrophils dysfunction and periodontitis.
Yue-jiao LIU ; Yiying LIU ; Yi XU
West China Journal of Stomatology 2016;34(2):210-214
Polymorphonuclear neutrophil leukocyte (PMN) is an important member of the human immune cells. Recentyears, the recognition of the PMN function and the relationship between PMN and periodontitis have been updated. Besidesthe pathogens killing and phagocytosis, PMN also play an important role in immunoregulation and proresolving. The maintaining of PMN homeostasis is an intricate process and the precondition of defense function, which involves activation, adhesion, recruitment, apoptosis and efferocytosis. The regulatory mechanism of PMN homeostasis called neutrophil rheostat, it works through several cytokines and cells. Any factors that break the homeostasis will result in the damage of host immunity,and may relate to the occurrence of periodontitis. Moreover, PMN dysfunction, because of host factors or microorganism factors, is closely related to periodontitis, especially those associated with systemic diseases and gene defect.
Cytokines
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Homeostasis
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Humans
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Neutrophils
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Periodontitis
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Phagocytosis
6.Desloratadine citrate disodium versus epinastine for the treatment of chronic urticaria: a randomized controlled trial
Yi YAN ; Ruizhen LIU ; Degang XU
Chinese Journal of Dermatology 2015;48(1):54-56
Objective To evaluate the efficacy and safety of desloratadine citrate disodium versus epinastine for the treatment of chronic urticaria (CU).Methods A randomized,double-blind,double-dummy controlled clinical trial was conducted.Patients with CU were divided into test group and control group to be treated by oral desloratadine citrate disodium (8.8 mg/d) and epinastine (10 mg/d) respectively once a day for 28 days.All the patients were followed up after starting treatment.Therapeutic effect was evaluated,and adverse reactions were observed.Results One hundred and fifty-seven patients were enrolled in this study,and 142 patients were valid for evaluation of efficacy and safety at the end of study.After treatment for 28 days,there was no significant difference between the test group and control group in response rate (81.16 % vs.78.08 %,P > 0.05) or incidence rate of adverse reactions (13.89 % vs.12.16 %,P> 0.05).Conclusion Desloratadine citrate disodium is effective and safe for the treatment of CU.
7.Study on anti-tumor effects of murine dendritic cells pulsed with PEP3-KLH peptide on prostate cancers
Yimin XU ; Haizhen LIU ; Faping YI
Journal of Chinese Physician 2015;17(11):1635-1639
Objective To explore the effects of anti-tumor immunity induced by dendritic cells (DCs) vaccine pulsed with PEP3-KLH (keyhole limpet hemocyanin) on induction of specific immunity against prostate cancers.Methods DCs were propagated from bone marrow of C57BL/6 mice in vitro with granulocyte-macrophage colony stimulating factor (GM-CSF) and interleukin-4 (IL-4).On day 5 of culture, DCs were harvested and incubated with PEP3-KLH or KLH.Then the DC vaccine was inoculated into C57BL/6 mice by subcutaneous injection for three times with an interval of two weeks.One week after the last vaccination, the levels of IL-2, IL-12, and interferon (IFN)-γwere measured with enzyme-linked immunosorbent assay (ELISA) kit.The aforementioned immunized mice with DC vaccines were challenged with transgenic adenocarcinoma of mouse prostate (TRAMP)-C2 tumor cells, the tumor growth curve was drawn, and survival rate was checked and compared.The cytotoxic T lymphocyte (CTL) activity induced by DCs was tested with lactate dehydrogenase (LDH) release method.The percentages of CD3 + , CD4+ ,or CD8 + T cells in tumor-infiltrating lymphocytes (TILs) were determined with flow cytometry.Results PEP3-KLH-DC group stimulated the body and induced higher levels of secreted IL-2, IL-12, and IFN-γ compared to DCs control and KLH-DC groups (P < 0.01).The tumor of mice vaccinated with PEP3-KLHDC grew significantly slower than that injected with DCs or KLH-DC (P <0.01).Compared to the others, the survival rate in PEP3-KLH-DC group raised remarkably (P < 0.01).PEP3-KLH-DC group induced more outstanding specific CTL activities of killing tumor cells than DCs control group and KLH-DC group (P < 0.01), and the cytotoxicities of TILs in PEP3-KLH-DC group was significantly enhanced (P <0.01).The percentages of CD3 + , CD4 + , or CD8 + T cells in TILs (40.9%, 34.1%) in PEP3-KLH-DC group were significantly higher than those in DC-KLH (27.3%, 5.2%) or DCs (26.2%, 5.1%) group.Conclusions PEP3-KLH-DC vaccine can inhibit effectively tumor growth, enhance long-term survival in mice,intensify the local immunologic function of tumor, and elicit and promote profound specific anti-prostate cancer cellular immune responses.
8.Mediated protective effect of electroacupuncture pretreatment by miR-214 on myocardial ischemia/reperfusion injury
Peiyu LIU ; Yi TIAN ; Shiyuan XU
Journal of Geriatric Cardiology 2014;(4):303-310
Background Electroacupuncture pretreatment plays a protective role in myocardial ischemia/reperfusion (I/R) injury and microRNAs (miRNAs) could act on various facets of cardiac function. However, the role of miRNAs in the cardioprotection by electroacupuncture pre-treatment on myocardial I/R injury remains unknown. The purpose of the study was to examine whether miR-214 was involved in cardio-protection by electroacupuncture. Methods Using rat myocardial I/R model, we examined the role of electroacupuncture pretreatment in myocardial I/R injury and analyzed the changes in the expression of miR-214. In addition, I/R was simulated in vitro by performing oxy-gen-glucose deprivation (OGD) on H9c2 cell cultures, and the effect of electroacupuncture pretreatment on I/R injury as well as expressional level of miR-214 were examined in vitro. Furthermore, the miR-214 mimic was transfected into OGD-treated H9c2 cells, we analyzed the cell apoptosis, lactate dehydrogenase (LDH) and creatine kinase (CK) activities, intracellular free Ca2+concentration ([Ca2+]i) as well as the relative protein levels of sodium/calcium exchanger 1(NCX1), BCL2-like 11 (BIM), calmodulin-dependent protein kinase IIδ(CaMKIIδ) and Cyclophilin D (CypD). Results The in vivo results revealed that compared with the I/R group, the electroacupuncture pretreatment group showed significant decreased myocardial infarct size, as well as the increased indices of the cardiac function, including heart rate, mean arterial pressure, left ventricular systolic pressure and maximal rate for left ventricular pressure rising and declining (±dp/dt max). In addition, electroacupuncture pretreatment could inhibit the elevation of LDH and CK activities induced by I/R injury. The quantitative PCR (qPCR) results demonstrated electroacupuncture pretreatment could provide cardioprotection against myocardial I/R injury in rats with miR-214 up-regulation. In the meanwhile, in vitro, electroacupuncture pretreatment protected H9c2 cells from OGD-induced injury. Trans-fection of miR-214 mimic showed protective effects on OGD-induced injury to H9c2 cells by reducing apoptosis, decreasing LDH and CK activities, rescuing the OGD-induced Ca2+and down-regulating elevated protein levels of NCX1, BIM, CaMKIIδand CypD. Conclusions Our findings firstly demonstrated that electroacupuncture pretreatment promotes the expression of miR-214 in myocardial I/R injury and miR-214 contributes to the protective effect of electroacupuncture on myocardial I/R injury.
9.Experimental study on properties of stress-relaxation of the middle and lower cervical spine
Tiecheng YU ; Yi LIU ; Xinxiang XU ;
Chinese Journal of Orthopaedic Trauma 2002;0(03):-
Objective To study the properties of stress relaxation of the middle and lower cervical vertebrae, and to evaluate the effects of laminotomy and anterior diskectomy and spinal fusion (ASF) on the properties . Methods The dynamic responses of stress relaxation of six intact and post operative fresh human cadaveric cervical vertebrae were measured in vitro. Results Under the condition of the constant strain, the functional equations and the curves of stress relaxation of the six intact and post operative fresh human cadaveric cervical vertebrae were obtained. The Gex(t)(the ratio of the ensuing instant stress to the original stress) of the post operative ones was significantly bigger than that of the intact ones; The Gex(t) of the laminotomic ones was significantly bigger than that of the ones having undergone the anterior discectomy and spinal fusion(ASF). Conclusion Either in flexion or in extension, cervical vertebrae have the similar behaviors of stress relaxation. The laminotomy and anterior discectomy and spinal fusion (ASF) all reduce the stress relaxation effect of the cervical vertebrae, but ASF is more significant.
10.Repair of articular cartilage defects with tissue-engineered cartilaginous grafts in rabbits
Yi LIU ; Yuxing SHAN ; Xinxiang XU
Chinese Journal of Trauma 2001;17(1):17-19
Objective To observe the effect of repairing the articular cartilage defects with tissue-engineered cartilaginous grafts in rabbits. Methods A total of 60 rabbits were divided into the cartilage graft group, the pure carrier control group and the blank control group. In the cartilage graft group, the bone marrow mesenchymal stem cells (MSCs) of the rabbits were obtained by isolating and culturing the bone marrow aspirates in vitro. The culture system that facilitates the chondrogenous differentiation of MSCs in rabbits was established. The tissue engineering cartilaginous graft was composed of chondrogenetic MSCs, bovine type Ⅰ collagen and human fibrin. Then transplantations of the cartilaginous grafts were performed to repair articular cartilage defects in rabbits. Results Hyaloid cartilage was formed within the defects repaired with the grafts at 12 weeks after transplantation by analyzing the content of type Ⅱ collagen and metachromatism. In the control groups, the fibrous cartilage repair was observed first, then the fibrous tissues and bone repairs were found. Conclusions The cartilaginous graft through tissue engineering is a promising graft for repairing articular cartilage defects.