1.Influential Factors on Deaf Children's Hearing and Speech Performance
Chinese Journal of Rehabilitation Theory and Practice 2011;17(4):372-374
ObjectiveTo investigate the influential factors on the deaf children's hearing and speech rehabilitation.Methods43 deaf children were involved in our study. They performed the hearing thresholds, hearing ability, speech ability and learning aptitude tests.ResultsGender and hearing aid mode didn't correlate with the children's hearing and speech performance (P>0.05). Hearing thresholds had significant influence on the hearing ability (P<0.05), and the speech ability had a strong correlation with the children's learning aptitude (P<0.05). The multiple regression analysis showed that the hearing ability was a significant predictor of speech ability (P<0.001).ConclusionGiving hearing compensation timely and effectively and grasping the critical period of language development to do rehabilitation training as soon as possible are very important to deaf children's rehabilitation of hearing and speech ability.
2. Regulatory role of phosphatidylinositol 4,5-bisphosphate in transient receptor potential channel
Academic Journal of Second Military Medical University 2010;31(8):887-891
Transient receptor potential(TRP) superfamily includes seven subfamilies and TRP channels are regulated by a wide variety of physical and chemical factors. Recently, several members of the TRP channel family have been reported to be regulated by phosphatidylinositol 4,5-bisphosphate(PIP2). The regulation is complex and it can be activation or inhibition, involving multiple mechanisms and factors. This review summarizes the PIP2 regulation of several TRP channels of different superfamilies and the related pathophysiological significance.
3.Distribution and Drug Resistance of Carbapenem-resistant Citrobacter Freundii from 2012 to 2014
Shumin LIU ; Na DU ; Jiaxin LIU ; Yan DU
Journal of Kunming Medical University 2016;37(8):35-38
Objective To investigate the distribution and susceptibility of carbapenem resistant citrobacter freundii for rational antimicrobial therapy.Methods The C.freumdii were collected between January 2011 and December 2014 from inpatients.The minimum inhibitory concentration (MIC) were detected by an automated analyzer (VITEK 2) to analyze the characteristic of tested bacteria.Results (1) Of the 21 strains of carbapenemresistant citrobacter freundii,95% were collected from urine,among which most of the strains were isolated from the Department of Transplantology (66.7%) and Urology (19%);(2) Antimicrobials Susceptibility test showed that Citmbacter freund were highly resistant to Cephalosporins and relevant beta-lactamase inhibitors.Even carbapenem were highly resistant.Imipenem had a resistance rate of 90% (95% confidence interval:70 to 99),Meropenem 85.7% (95% confidence interval:64 to 97),The drug resistance rate to Amikacin was only 4.8%,followed by Nitrofuran toin (10.5%) and Fosfomycin (15%).Conclusions Carbapenem resistant citrobacter freundii,which often causes urinary tract infection in our hospital,was characterized by multi-drug resistant (MDR).Monitoring of the Citrobaeter freundii should be strengthened to control the prevalence of drug resistance.
4.Anti-inflammatory, Analgesic and Immunosuppressive Action of Niuhuang Qianjin San
Qingrong XU ; Na LI ; Guanhua DU
Traditional Chinese Drug Research & Clinical Pharmacology 2001;12(2):98-100
Objective: To study the anti-inflammatory, analgesic and immunosuppressive action of Niuhuang Qianjin San (NQS). M ethods: The anti-inflammatory action of NQS was studied by the methods of rat pa w swelling and mouse ear swelling and the analgesic action by mouse body torsion method and K+ subcutaneous penetration method in rats.Immunosuppressive effec t was evaluated by peripheral T lymphocyte percentage, splenic lymphocyte transfor mation ratio, phagocytic function of intraperitoneal magocytes, the activity of delayed hypersensitivity, serum hemolysin level and the function of antibody-yie lding cells in mice. Results: NQS could obviously alleviate inflammation, increa se codeine's analgesic action and suppress immunity. The difference were signif icant (P<0.01) as compared with normal saline contr ol group.Conclusion:NQS exerts certain anti-inflammatory,analagisic and immunosu ppressive action.
6.Anti-inflammatory, Analgesic and Immunosuppressive Action of Niuhuang Qianjin San
Qingrong XU ; Na LI ; Guanhua DU
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(02):-
Objective: To study the anti-inflammatory, analgesic and immunosuppressive action of Niuhuang Qianjin San (NQS). Methods: The anti-inflammatory action of NQS was studied by the methods of rat paw swelling and mouse ear swelling and the analgesic action by mouse body torsion method and K + subcutaneous penetration method in rats.Immunosuppressive effect was evaluated by peripheral T lymphocyte percentage, splenic lymphocyte transformation ratio, phagocytic function of intraperitoneal magocytes, the activity of delayed hypersensitivity, serum hemolysin level and the function of antibody-yielding cells in mice. Results: NQS could obviously alleviate inflammation, increase codeine's analgesic action and suppress immunity. The difference were significant (P
7.The intervention of glucagon-like peptide 1 analogue in IRE1α-JNK signaling pathway of rats with non-alcoholic fatty liver disease
Jiayu XU ; Na AO ; Jian DU ; Jing YANG ; Xiaochen WANG
Chinese Journal of Endocrinology and Metabolism 2015;31(3):272-276
Objective To explore the expressions of endoplasmic reticulum stress (ERs) related factors including inositol requiring enzyme-1α(IRE1αα),p-IRE1 α,c-jun N-terminal Kinase(JNK),and p-JNK in rats with non-alcoholic fatty liver disease,and to investigate the effect of intervention with glucagon-like peptide 1 (GLP-1) analogue.Methods Forty male Sprague-Dawley rats were divided into normal chow group(n =15) and high-fat diet group(n=25).After 12 weeks,5 rats of each group were used to assess the establishment of rat models with non-alcoholic fatty liver disease.Then the high-fat diet group rats were divided into high-fat diet group (HF,n =10) and GLP-1 group(HG,n=10) and treated with normal saline and GLP-1 analogue for4 weeks respectively.Body weight and biochemical markers in rats were measured.The expressions of IRE1α,p-IRE1α,JNK,and p-JNK were measured by Western blot.Results Compared with the NC group,the levels of body weight,plasma triglyceride (TG),total cholesterol (TC),low density lipoprotein-cholesterol (LDL-C),alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in HF group were significantly higher (all P < 0.01),high density lipoprotein-cholesterol(HDL-C) was decreased(P<0.01),and p-IRE1 α/IRE1 α and p-JNK/JNK were increased(P<0.05 and P<0.01).After GLP-1 treatment,body weight,plasma TG,TC,LDL-C,AST,ALT in HF group were significantly lowered(P<0.05 or P<0.01),HDL-C was increased(P<0.01),p-IRE1 α/IRE1 α and p-JNK/JNK were decreased (P<0.05 and P<0.01).Conclusion GLP-1 analogue may improve hepatic steatosis via regulating ERs related IRE1 α-JNK signaling pathway.
8.Destruction of gastric cancer cells to mesothelial cells by apoptosis in the early peritoneal metastasis.
Di, NA ; Funan, LIU ; Zhifeng, MIAO ; Zongmin, DU ; Huimian, XU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2009;29(2):163-8
This study examined the mechanism by which the gastric cancer cells lead to early peritoneal metastasis. HMrSV5 cells, a human peritoneal mesothelial cell line, were co-incubated with the supernatants of gastric cancer cells. Morphological changes of HMrSV5 cells were observed. The cell damage was quantitatively determined by MTT assay. The apoptosis of HMrSV5 cells was observed under transmission electron microscope. Acridine orange/ethidium bromide-stained condensed nuclei was detected by fluorescent microscopy and flow cytometry. The expressions of Bcl-2 and Bax was immunochemically evaluated. The results showed that conspicuous morphological changes of apoptosis were observed in HMrSV5 cells 24 h after treatment with the supernatants of gastric cancer cells. The supernatants could induce apoptosis of HMrSV5 cells in a time-dependent manner. The supernatants could up-regulate the expression of Bax and suppress that of Bcl-2 in HMrSV5 cells. These findings demonstrated that gastric cancer cells can induce the apoptosis of HPMCs through supernatants in the early peritoneal metastasis. The abnormal expressions of Bcl-2 and Bax may contribute to the apoptosis. Anti-apoptosis drugs promise to be adjuvant chemotherapeutic agents in the treatment of peritoneal metastasis of gastric cancer.
Apoptosis
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Cell Line
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Cell Line, Tumor
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Coculture Techniques
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Epithelial Cells/*cytology
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Epithelium
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Peritoneal Neoplasms/pathology
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Peritoneal Neoplasms/*secondary
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Stomach Neoplasms/*pathology
9.Effects of recombinant adenovirus vector expressing human lactoferrin on proliferation and apoptosis of cervical cancer stem-like cells
Xia ZHANG ; Zhixiang DU ; Na WANG ; Yali MENG
Chinese Journal of Tissue Engineering Research 2017;21(13):2009-2014
BACKGROUND:Gene engineering plays an important role in the process of human malignant tumor treatment, and adenovirus vectors for gene therapy are commonly used. In recent years, lactoferrin is found to exert important effects on the occurrence, development and metastasis of a variety of tumors. However, little is reported on the in vivo expression of adenovirus vector mediated lactoferrin in the human body.OBJECTIVE:To investigate the effect of adenovirus mediated human lactoferrin (Ad-hLF) on proliferation and apoptosis of cervical cancer stem-like cells.METHODS:Primary cervical cancer cells from mice were cultured in vitro to sort cervical cancer stem-like cells using SP method. Afterwards, the stem-like cells were divided into three groups, blank control group, empty vector group, and Ad-hLF group, followed by transfection with nothing, Ad-GFP and Ad-hLF, respectively. After transfection, MTT assay was used to detect the proliferation of cervical cancer stem-like cells; scratch-wound assay was employed to detect the migration of cervical cancer stem-like cells; western blot assay was used to determine the expression of lactoferrin in cervical cancer stem-like cells; and Annexin V-FITC/PI was used to detect cell apoptosis.RESULTS AND CONCLUSION:Compared with the blank control and empty vector groups, Ad-hLF significantly inhibited the proliferation of cervical cancer stem-like cells and reduced the number of scratched cells, while the cell apoptosis increased in the Ad-hLF group (P < 0.05 or P < 0.01). These findings indicate that the recombinant adenovirus vector mediated lactoferrin Ad-hLF for transfection of cervical cancer stem-like cells can be stably expressed in cervical cancer stem-like cells, and can inhibit the proliferation, increase apoptosis and reduce migration of cervical cancer stem-like cells.
10.Optimum dose of Oxycodone for anesthesia induction in patients undergoing laparoscopic cholecystectomy
Huayan LYU ; Chonghui HU ; Na YANG ; Guangsheng DU ; Zhanhong WEI
China Journal of Endoscopy 2016;22(8):29-33
Objective To determine the optimum dose of Oxycodone for anesthesia induction in patients undergoing laparoscopic cholecystectomy. Methods Ninety patients, ASA Ⅰ or Ⅱ , scheduled for elective LC, were randomly divided into 3 groups using random number table (O 1~O 3 groups, n = 30 each). Anesthesia was induced with iv Propofol 1.00~2.00 mg/kg, Oxycodone 0.20 mg/kg, 0.3 mg/kg and 0.4 mg/kg (O 1~O 3 groups, respectively), and Vecuronium 0.10 mg/kg. Before anesthesia induction ( T0 ), 1 min after Laryngeal Mask intubating ( T1 ), the instant of pneumoperitoneum ( T2 ), separation of the gallbladder ( T3 ), wake up immediately ( T4 ), leaving the recovery room ( T5 ), the heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) were recorded. At T4, leaving the recovery room ( T5 ), 4 hours after the operation ( T6 ), 8 hours after operation (T7), the numeric pain rating scale (NRS) were recorded. The overall amount of remifentanil and Oxycodone were record. The wake up time, additional analgetic cases and the adverse reactions were recorded. Results The average HR, SBP and DBP fluctuations in the O 2 and O 3 groups were not more than 20.00% of the basal values. There was no significant difference in wake up time between the three groups. There were 22 cases of patients, the NRS> 4, in O1 group requires additional analgesics after they wake up, more than O 2 and O 3 group (7, 3 respectively, P < 0.05). The overall Oxycodone consumption of the three groups were O1: (18.93 ± 4.34) mg (0.90~2.60 mg),O2: (25.50 ± 4.49) mg (1.40~3.00 mg), O3: (26.10 ± 4.55) mg (1.80~3.40 mg) (F = 23.79, P = 0.000). There was no significant difference in adverse reactions between the three groups, but one patient had respiratory depression in O3 group. Conclusion The optimum dose of Oxycodone for anesthesia inducing in laparoscopic cholecystectomy were 0.30 mg/kg.