1.Development of HIS for medicine warehouse management
Chinese Medical Equipment Journal 1989;0(04):-
Based on Belphi7.0, this paper designs a software of HIS for medicine warehouse management, which can provide timely dynamic information of the medicine. With the application of this software, required medicine can be supplied in time and the overstocking can be diminished, thus not only accelerates medicine circulation, but greatly promotes work and management efficiency. The combination of this software and HIS shows such advantages as quick response, comprehensive information, convenient installment, practical and safe in application, etc.
2.Pharmacokinetics of Pirarubicin in Patients With Breast Cancer
Jianrong HE ; Yan ZHANG ; Jianfeng CHANG
China Pharmacy 2001;12(6):352-353
AIM: To estabish a HPLC assay for the determination of pirarubicin(Pir) in plasma.METHODS: Daunomycin(DM) was used as the internal standard.Plasma samples were extracted with CHCl3∶ CH3OH(2∶ 1) .0.4M NH4Cl buffer(pH=9.0) solution: CH2OH(1∶ 9) and the internal standard were added.Separation was carried out on a 250mm× 4.6mm(5μ m) phenomenex column with 0.04M KH2PO4(pH=3.0) ∶ CH3CN(68∶ 32) as mobile phase.Fluorescent detector was set at an excitation wavelength of 480nm and an emission wavelength of 550nm.RESULTS: The calibration curves for serum Pir was linear over the range of 5~1 000ng/ml(r=0.9 997) .The recovery of Pir was 95.3% .The within-day and between-day variations were less than 5% .T1/2β , CLs, Vd and AUC of Pir were(12.8± 5.9) h, (128.3± 52.6) L/(m2· h) , (1 754.3± 478.2) L/m2 and (428.7± 137.2) ng/(h· ml) , respectively.CONCLUSION: The method is suited for monitoring blood concentration and pharmacokinetic study of Pir.
3.Infection with avian influenza A(H7N9) virus and epidemic analysis
Dan LIN ; Jianfeng XIE ; Yansheng YAN
Chinese Journal of Zoonoses 2017;33(3):185-194,201
The situation of the ongoing fifth epidemic (beginning October,2016) of human infection with avian influenza A (H7N9) virus are more serious than the first four ones.As of March 8,2017,the fifth epidemic reported 40.00% of the cumulative cases.Recently,the pathogenic study reported two new human infections in Guangdong with an influenza A(H7N9)virus strain for which gene sequencing analysis revealed mutations in the haemagglutinin (HA) gene that resulted in the insertion of basic amino acids at the cleavage site of this protein,known to confer increased pathogenicity in chickens.However,most strains show no obvious difference in pathogenic characteristics compared with those detected during the first four waves.Although epidemiological studies showed that 3 clusters with limited human-to-human transmission have been investigated during the current wave,there are no indications of sustained person-to-person spread.Based on epidemic analysis and risk assessment results,it's likely that human infections with H7N9 virus will continue to occur in China,but epidemiological and pathogenic analysis suggested that it's unlikely to have a continued transmission of this virus.Profound public health significance would be presented by strengthening etiology and epidemiology studies of avian influenza A(H7N9) virus.
4.Influence of cytokines on expression of thyrotropin receptor and adipogenesis in patients with Graves ophthalmopathy during the adipogenesis of orbital adipocytes
Yuqing YAN ; Jianfeng HE ; Kaijun LI
Chinese Journal of Tissue Engineering Research 2007;0(28):-
BACKGROUND:Thyroid-stimulating hormone receptor is an autoantigen shared by thyroid follicuar cells and ocular orbital tissues,and cytokines plays an important role on the pathogenesis of Graves ophthalmopathy(GO) . It is still a puzzle that the relation of cytokines and thyroid-stimulating hormone receptor in the pathogenesis of GO. OBJECTIVE:To study the influence of various cytokines on the expression of thyroid-stimulating hormone receptor in the process of adipogenesis of in vitro cultured orbital adipose cells in GO patients. DESIGN,TIME AND SETTING:A single sample observation was carried out in the Central Laboratory,Department of Ophthalmology,Sun Yat-sen University(Guangzhou,Guangdong,Province) from September 2003 to March 2004. MATERIALS:Orbital adipose cells were obtained from eight serious GO patients undergoing orbital decompression. Recombinant human interleukin 2(IL-2) ,IL-4,IL-6,IL-10,and interferon ?(IFN-?) were purchased from PEORO TECH EC Company. METHODS:Orbital adipose cells were cultured and treated by groups. IL-2,IL-4,IL-6,IL-10 and IFN-? was added to the culture media in the experimental group,while no any cytokine was given in the untreated group,and orbital adipose cells were primarily cultured in the control group. The cells were all collected twelve days later. MAIN OUTCOME MEASURES:The expression of thyroid-stimulating hormone receptor was examined with reverse transcriptase-polymerase chain reaction,and the content of cyclic adenosine monophosphate was measured with simultaneous radioimmunoassay. The quantitation of adipose in cells was detected by staining intracytoplasmic lipids with oil red O. RESULTS:The expression of thyroid-stimulating hormone receptor was significantly higher in cells treated with IL-2,IL-4,IL-6 and IL-10 than that in the untreated cells and in the cells treated with IFN-?. Treatment of GO orbital adipose cells with IL-2,IL-4,IL-6 and IL-10 during differentiation resulted in significantly greater cyclic adenosine monophosphate production by different degrees. The highest production achieved in the treatment with IL-6,which was two times as many as control group. The cyclic adenosine monophosphate production was significantly lower in the cells treated with IFN-? than in the untreated cells. CONCLUSION:IL-6,IL-4 and IL-10 can upregulate the expression of thyroid-stimulating hormone receptor in the orbital adipose cells of GO patients,and stimulate adipose differentiation. Conversely,IFN-? can restrain this process.
5.A New Method to Segment Multiple Sclerosis Lesions Using Multispectral Magnetic Resonance Images.
Yan XIANG ; Jianfeng HE ; Lei MA ; Jiaping XU
Journal of Biomedical Engineering 2015;32(2):330-335
Magnetic resonance (MR) images can be used to detect lesions in the brains of patients with multiple sclerosis (MS). An automatic method is presented for segmentation of MS lesions using multispectral MR images in this paper. Firstly, a Pd-w image is subtracted from its corresponding T1-w images to get an image in which the cerebral spinal fluid (CSF) is enhanced. Secondly, based on kernel fuzzy c-means clustering (KFCM) algorithm, the enhanced image and the corresponding T2-w image are segmented respectively to extract the CSF region and the CSF-MS lesions combinatoin region. A raw MS lesions image is obtained by subtracting the CSF region from CSF-MS region. Thirdly, based on applying median filter and thresholding to the raw image, the MS lesions were detected finally. Results were tested on BrainWeb images and evaluated with Dice similarity coefficient (DSC), sensitivity (Sens), specificity (Spec) and accuracy (Acc). The testing results were satisfactory.
Algorithms
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Brain
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pathology
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Humans
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Image Enhancement
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Magnetic Resonance Imaging
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Multiple Sclerosis
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diagnosis
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Sensitivity and Specificity
6.Cistanche deserticola plus bone marrow mesenchymal stem cell transplantation for treating spinal cord injury in rats
Jing LAN ; Jinyu YAN ; Runfu XIA ; Jianfeng LI
Chinese Journal of Tissue Engineering Research 2014;(41):6639-6644
BACKGROUND:Studies have shown that bone marrow mesenchymal stem cells under certain conditions can differentiate into nerve cells. Bone marrow mesenchymal stem celltransplantation can rebuild nervous system function and improve functional disorders in patients. Glycosides of cistanche also have a protective effect against nerve cellinjury. Their combination has been less reported. OBJECTIVE:To observe the effectiveness of Cistanche deserticola and bone marrow mesenchymal stem celltransplantation on spinal cord injury in rats. METHODS:Fifty adult Wistar rats with spinal cord injury were randomly divided into four group:a Cistanche deserticola group (intragastric administration of 20 mL/kg Cistanche deserticola concentrated solution per day), a celltransplantation group (10μL of 1×108/L bone marrow mesenchymal stem cellsuspension), a combination group (10μL of 1×108/L bone marrow mesenchymal stem cellsuspension+intragastric administration of 20 mL/kg Cistanche deserticola concentrated solution per day) and a control group (intragastric administration of 20 mL/kg normal saline per day). The intragastric administration lasted for 30 days in each group. RESULTS AND CONCLUSION:After 30 days of treatment, the expression of Nestin was significantly higher in the combination group than the other groups. After 12 weeks, Basso, Beattie, and Bresnahan scores was significantly higher in the combination group than the other groups (P<0.05);somatosensory and motor evoked potential latencies were also improve significantly in the combination group compared with the other groups (P<0.05). These findings indicate that oral administration of Cistanche deserticola combined with bone marrow mesenchymal stem cells can significantly improve the motor and neurophysiological function of spinal cord injury rats. Cistanche deserticola can improve the survival of transplanted bone marrow mesenchymal stem cells in rats with spinal cord injury.
7.Design of an injury device to establish spinal cord dorsal compression injury models in rats
Jianfeng LI ; Shiqing FENG ; Runfu XIA ; Jinyu YAN
Chinese Journal of Tissue Engineering Research 2015;(18):2856-2861
BACKGROUND:With the development of spinal cord injury study, different methods of establishing spinal cord injury models have emerged, including spinal cord contusion, fal ing weight, spinal compression, chemical burn, radiation, hormone, spinal transection and hemi-section. However, lots of them are not perfect enough.
OBJECTIVE:To design the injury device of spinal cord injury and establish different degrees of spinal cord injury models.
METHODS:To design the device of producing spinal cord injury and establish different degrees of spinal cord dorsal compression injury in Sprague-Dawley rats by various weights (m1=10 g, m2=20 g, m3=30 g) and time points (T1=3 s, T2=5 s). Rats were randomly divided as m1T1, m2T1, m3T1, m1T2, m2T2 and m3T2 groups. While sham group was also made.
RESULTS AND CONCLUSION:Basso-Beattie-Bresnahan (BBB) score in injury groups decreased significantly after operation, when compared with the sham group (P<0.01). The m 1T1 group showed no significant difference in BBB score from other groups (P<0.01). The BBB score of m1T2 group was significant higher than m2T2 group and m3T2 group at 8 weeks after operation (P<0.05). The somatosensory evoked potential and motion evoked potential of injury groups were longer than sham group at 8 weeks after operation (P<0.01). The motion evoked potential of each injury groups were significantly longer after operation (P<0.05). The somatosensory evoked potential was significantly longer in injury groups, except m1T1 and m1T2 groups (P<0.05). The self-designed device can be applied to establish different degrees of spinal cord injury models.
8.Reconstruct bladder function and prevent urinary tract infection of patients with spinal cord injury
Jinyu YAN ; Jianfeng LI ; Xu ZHANG ; Zunnan LIU
Chinese Journal of Postgraduates of Medicine 2010;33(29):27-29
Objective To observe the effectiveness of comprehensive rehabilitation for neurogenic bladder of patients with spinal cord injury and prevent urinary tract infection (UTI). Methods Fifty-seven patients with spinal cord injury were randomly divided into two groups: treatment group (29 cases) and control group (28 cases). The patients in treatment group were treated with comprehensive rehabilitation,while those in control group were treated mainly with catheterization and TDP equipment. Scored with Barthel index and the rate of UTI. Results It was shown that the improvement of Barthel index after treatment [(8.93 ± 6.27) scores] and the rate of UTI [13.79%(4/29)] were significantly better than those in control group[(5.16 ± 6.82) scores,67.86%(19/28)], which had significant differences (P< 0.05). Conclusion Comprehensive rehabilitation can reconstruct bladder function and prevent UTI of patients with spinal cord injury effectively.
9.Electroacupuncture and body-weight supported treadmill training after vertebral fractures
Jinyu YAN ; Jianfeng LI ; Xu ZHANG ; Zunnan LIU ; Dongsheng LI
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(9):693-696
Objective To observe the effect of electroacupuncture and body-weight supported treadmill training in the treatment of spinal cord injury (SCI) after fractures of the thoracolumbar segment of the spine.Methods Forty-three patients with SCI after fractures of the thoracolumbar segment of the spine were randomly divided into a treatment group (22 cases) and a control group (21 cases). The patients in the treatment group were treated with electroacupuncture and body-weight supported treadmill training, while those in the control group were treated mainly with drugs. Patients were scored with the American Spinal Injury Association (ASIA) assessment and the modified Barthel index (MBI) initially and after 6 months. Results The ASIA and MBI scores of all patients were significantly higher after 6 months than before treatment, but those in the treatment group were significantly higher than those in the control group. Excellent and good ratings were applied to 77% of the treatment group, while only 48% of the control group, a statistically significant difference. Conclusions Electroacupuncture and body-weight supported treadmill training can effectively improve ability in the activities of daily living, sensation and locomotor abilities after thoracolumbar vertebral fractures.
10.Evaluation of skin barrier function in children with atopic dermatitis from two communities in Shanghai
Wanqing PENG ; Feng XU ; Shuxian YAN ; Jianfeng ZHU ; Jinhua XU
Chinese Journal of Dermatology 2013;46(8):591-593
Objective To evaluate skin barrier function in children with atopic dermatitis (AD) as well as healthy children from two communities in Shanghai and to assess the relationship between skin barrier function and AD severity.Methods Totally,169 children with AD and 142 healthy children aged 3-12 years were recruited from two communities (Changning Xining community and Jiading Juyuan community) in Shanghai,China.Transepidermal water loss (TEWL) and stratum corneum hydration were measured in normal appearing nonlesional skin at four body sites (dorsal and volar forearm,cheek and anterior shin) of the patients,as well as in normal skin at the same sites of the controls.AD severity was evaluated by using the severity scoring of atopic dermatitis (SCORAD) index.Results Compared with the healthy children,the patients with AD showed higher TEWL value at all of the four body sites (all P < 0.05),but lower water content in stratum corneum at dorsal forearm and anterior shin (both P < 0.05).In patients with AD,the SCORAD index was positively correlated with mean TEWL value,but negatively correlated with the mean water content in stratum corneum.Conclusion Skin barrier function may serve as an index for evaluating the severity of AD.