1.Realization of Auditory Apperception Measurement Model by computer
Chinese Medical Equipment Journal 1993;0(06):-
The Auditory Apperception Measurement Model (AAMM) is often used to test the ability of people's auditory learning. Through learning auditory signals,the testees' apperception abilities are tested under different process of learning. In this paper,the AAMM is built,and the design and realization of the software is introduced.
2.A quantitive detection of serum Cyfra21-1 in patients with oral squamous cell carcinoma
Journal of Practical Stomatology 2010;26(1):100-102
Objective: To examine the level of serum Cyfra21-1 in patients with oral squamous cell carcinoma(OSCC) and to explore the potential application of serum Cyfra21-1 detection in the diagnosis of OSCC. Methods: The serum Cyfra21-1 concentrations were detected by ELISA. Results: The preoperative serum Cyfra21-1 concentration in patients with OSCC was (1.12±0.61) ng/ml, which was significantly higher than that in healthy persons (0.34±0.20) ng/ml and that in patients with oral benign tumor (0.50±0.27) ng/ml. The sensitivity rate and specificity rate of the test were 83.9% and 89.3%, respectively. For 10 patients with OSCC, the serum Cyfra21-1 concentrations were decreased from (1.31±0.25) ng/ml preoperatively to (0.65±0.14) ng/ml postoperatively. Conclusion: Cyfra21-1 may be a good marker in diagnosis of OSCC.
3.The effect and mechanism of epithelial growth factor receptor (EGFR)in inducing vasculogenic mimicry formation
Xi ZHANG ; Qimei ZHAO ; Chunyan WEI
Journal of Xi'an Jiaotong University(Medical Sciences) 2015;(6):739-742
Objective To investigate the effect and mechanism of EGFR in inducing vasculogenic mimicry (VM)formation.Methods Immunohistochemistry was used to detect the expression of EGFR protein and CD34-PAS double staining was used to detect the VM in gliomas paraffin blocks.The migration and VM formation of U87 cell in hypoxic and normoxic groups were detected by transwell and three-dimensional culture.Then we used Western blot to detect the expressions of EGFR,AKT and PI3K protein.Results The positive rate of EGFR expression in VM positive patients was 94.4%,which was significantly higher than that in VM negative patients (71.8%).In hypoxic group,the abilities of migration and VM formation were significantly higher those in normoxic group.The expressions of EGFR,AKT and PI3K were higher in hypoxic group.Conclusion VM formation can be induced by the activation of EGFR/AKT/PI3K signaling pathway.EGFR is very important for VM formation.
4.Effect of antiepileptic drugs on the level of plasma homocysteine and asymmetric dimethyl arginine in epileptic patients
Jie XIA ; Zheng ZHENG ; Qimei ZHANG
Chongqing Medicine 2015;(6):783-784
Objective To investigate plasma homocysteine(Hcy)and asymmetric dimethyl arginine(ADMA)concentration in patients with epilepsy receiving oxcarbazepine(OXC)or sodium valproate(VPA)monotherapy.Methods Plasma were collected from 32 cases of OXC and 36 cases of VPA monotherapy.The levels of hcy and ADMA were detected and compared with healthy controls.Then the correlation of the levels and antiepileptic drug treatment duration was analyzed.Results The levels of hcy and ADMA in treatment groups were higher than in control gruops(P <0.05),and no difference between two treatment groups(P >0.05).Antiepileptic drug treatment duration and plasma Hcy,ADMA levels were positively correlated (r =0.274,P <0.05;r =0.256,P <0.05).Conclusion OXC and VPA elevated hcy and ADMA plasma levels in patients with epilepsy.Routine monitoring of plasma hcy and ADMA and supplementation of B vitamins and folate acid might have help to reduce thrombotic events occurring for patients receiving long-term OXC and VPA therapy.
5.Effect of Hyperuricemia on Recovery of Motor Function and Activities of Daily Living after Cerebral Infarction
Jinghua ZHOU ; Qimei ZHANG ; Yaocai LI
Chinese Journal of Rehabilitation Theory and Practice 2010;16(9):815-816
ObjectiveTo investigate the effects of hyperuricemia on motor function, activities of daily living (ADL) in patients with cerebral infarction. Methods120 patients with cerebral infarction were divided into control group (n=60) and hyperuricemia group (n=60). Two groups accepted the similar training of equal time and intensity, and were assessed with Fugl-Meyer Assessment (FMA) and Modified Barthel Index (MBI). ResultsAfter 4 weeks training, the increase of score of FMA and MBI in the hyperuricemia group was obviously lower than in the control group (P<0.01). ConclusionHyperuricemia could adversely affect the discovery of motor function and ADL in patients with cerebral infarction who accepted rehabilitation.
6.Storage and Display of Picture and Text Data in Management Information System
Qimei LIAO ; Jun GE ; Qijun ZHENG ; Jinzhou ZHANG
Chinese Medical Equipment Journal 1993;0(06):-
Objective To study how to store and display the data combined with pictures and texts in Management Information System(MIS) for client to manage and use the MIS easily.Methods The MIS used Access 2003 as database and Delphi 7 as development platform.With the use of RXRichEdit controller,the pictures and texts data were stored in database.Results The problem of storing the pictures and texts data in database was solved.The most functions such as input,storage and display of pictures and texts data were realized in MIS.Conclusion The use of RXRichEdit controller can simplify the storage and display the pictures and texts data in database.It not only makes convenience for user to operate the data,but also improves the performance of the system.
7.P2X3 receptor expression in lingual nerve fibres of patients with burning mouth syndrome
Qimei ZHANG ; Minhai NIE ; Yi HE ; Cong ZHOU
Journal of Practical Stomatology 2016;32(2):277-279
Patients with burning mouth syndrom(BMS,n =12)and patients with wisdom tooth removal(controls,n =9)were included. Immunohistochemistry and image analysis were used to quantify P2X3 receptor expression in lingual nerve fibres.A pain history and score were recorded on a visual analogue scale(VAS)prior to obtaining a lingual biopsy.The value of P2X3 receptor positive fibres in BMS and control subjects was 0.56 ±0.29 and 0.15 ±0.06 respectively(P <0.001).There was no significant correlation between P2X3 and VAS scores(R2 =0.012).Increased P2X3 may play a role in BMS but not correlated with the VAS score.
8.Influence of bone marrow mesenchymal stem cell transplantation on growth-associated protein-43 expression in rats with cerebral infarction
Hui YOU ; Yu PENG ; Qiaoyun TONG ; Qimei ZHANG ; Chengyan LI
Chinese Journal of Tissue Engineering Research 2009;13(40):7893-7897
BACKGROUND:Growth-associated protein-43 is the primary substance for constructing plasticity of central nervous system, which is recognized as the first molecular marker for studying growth and repairing injury of nerves. OBJECTIVE: To explore the expression of growth-associated protein-43 in rats with focal cerebral ischemia following bone marrow mesenchymal stem cells (MSCs) transplantation.DEISNG, TIME AND SETTING: A randomized, controlled, animal study was performed at the Laboratory of Department of Neurology, Renmin Hospital of Wuhan University and Doctoral Scientific Research Work Station of C-BONS Pharmacy, Hubei, China, from March 2006 to October 2007.MATERIALS: Sixty adult Sprague Dawley rats, with clean grade, irrespective of genders, weighing (180±20) g, were randomly divided into the model, sham operated, and MSCs transplantation groups, with 20 animals in each group. METHODS: Additional 4 Sprague Dawiey rats, aged 2 months, were selected to isolate and culture MSCs, which was labeled with 5-Bromo-2,-deoxyuridine (BrdU). In the sham operated group, the right internal carotids were deligated after anaesthesia. The remained rats were prepared for models of right middle cerebral artery ischemia. At 24 hours after model preparation, 20 μL culture solution containing 5×105/L MSCs was injected into the left lateral ventricle of rats in the MSCs group, the same volume of phosphate buffer saline was injected in the model group.MAIN OUTCOME MEASURES: The rats were sacrificed prior to and at days 7, 14, and 21 after transplantation. The expression of growth associated protein-43 at the infarcted areas, the survival and migration of transplanted cells were examined by immunohistochemistry, at the same time, neurological deficit scores were recorded.RESULTS: The transplanted MSCs migrated from the left lateral ventricle to the infracted areas. Seven days after transplantation, the expression of BrdU-positive cells was found, reached a peak at day 14, and gradually decreased, until disappeared at 28 days after transplantation. Results of immunohistochemistry image analysis showed that immunological activity of growth associated protein-43 around the infarcted area of the MSCs group was obviously greater than that of the model group at days 7 and 14 after transplantation (P<0.06). There was no neurological deficit in the sham operated group. Moreover, with time prolonged, the neurological deficit scores gradually decreased in the model and MSCs groups, which were significantly lower in the MSCs group compared to the model group at day 14 after transplantation (P<0.05).CONCLUSION: MSCs transplantation up-regulates the expression of growth associated protein-43 around the infarcted area, which is consistent with the recovery of neurological function.
9.THE METHODS FOR QUANTIFYING CAPACITY OF BACTERIA IN DISSOLVING P COMPOUNDS
Xiaorong ZHAO ; Qimei LIN ; Yanxin SUN ; Jun YAO ; Youshan ZHANG
Microbiology 2001;(1):1-4
Three bacteria of decomposing lecithin and 4 bacteria of dissolving aptite were incubated for 4 weeks with sand media respectively. Phosphorus in the sand was extracted with distilled water and measured by different methods. It was found that the bacteria have a quite different ability to release P from the materials. Part of the P released became organic phosphorus compounds in microbial tissue. However, a large amount of the P was reserved in microbial cells in a form of phosphates. The direct measurement of P in the extract by molybdenum blue method would underestimate the capacity of the bacteria to release P from the materials. The correct approach was that the sand was fumigated with chloroform and then digested with acid before the measurement by molybdenum blue method.
10.THE METHODS FOR QUANTIFYING CAPACITY OF BACTERIA IN DISSOLVING P COMPOUNDS
Xiaorong ZHAO ; Qimei LIN ; Yan SUN ; Jun YAO ; Youshan ZHANG ;
Microbiology 1992;0(01):-
Three bacteria of decomposing lecithin and 4 bacteria of dissolving aptite were incubated for 4 weeks with sand media respectively. Phosphorus in the sand was extracted with distilled water and measured by different methods. It was found that the bacteria have a quite different ability to release P from the materials. Part of the P released became organic phosphorus compounds in microbial tissue. However, a large amount of the P was reserved in microbial cells in a form of phosphates. The direct measurement of P in the extract by molybdenum blue method would underestimate the capacity of the bacteria to release P from the materials. The correct approach was that the sand was fumigated with chloroform and then digested with acid before the measurement by molybdenum blue method.