1.Changes of Levels of Serum Intereferon-? and Interleukin-4 in Children with Mycoplasma Pneumoniae Encephalitis
zhong, XU ; bai-hong, ZHENG ; min, XU ; xin, TIAN
Journal of Applied Clinical Pediatrics 2006;0(16):-
Objective To explore the changes of intereferon-?(IFN-?)and interleukin-4(IL-4)in peripheral blood of children with mycoplasma pneumoniae(MP) encephalitis at the acute phase.Methods The peripheral blood concentrations of IFN-? and IL-4 were measured by enzyme-linked immunosorbent assay(ELISA) in 24 cases of children with MP encephalitis at the acute stage.The samples from 24 cases of healthy children were control group.Twenty-four children with MP encephalitis were intravenous drip with azithromycin,at the same time,10 cases received hexadecadrol and 15 cases received gamma globulin.Results The serum concentrations of IFN-? and IL-4 in the mycoplasmal encephalitis group were(98.56?12.93) and(45.55?17.58) ng/L,respectively,which were significantly higher than those in control group [(85.35?6.91) and(26.78?9.89) ng/L] respectively(Pa
2.Synergistic effects of ultrashortwave electrical stimulation and nerve growth factor in treating sciatic nerve injury
Hong YU ; Yuehong BAI ; Juan ZHAO ; Yiming XU
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(4):245-249
Objective To investigate the effects of ultrashortwave (USW) diathermy and electrical stimulation (ES) used in combination with nerve growth factor (NGF) in the treatment of experimental sciatic nerve injury.Methods Sixty adult Wistar rats were randomly divided into a normal control group, a model group, an NGF group,a physiotherapy group and a combined treatment group. A model of sciatic nerve injury was established in the latter four groups. Beginning on the 2nd day after the operation, no treatment was given in the model group, NGF was injected in the NGF group, diathermy and ES were administrated to rats in the physiotherapy group, and the combined treatment group was treated with USW diathermy, EW and NGF. Function, electrophysiology and morphology were evaluated at the 2nd, 7th, 14th and 30th days after the operation Results The average sciatic nerve function index (SFI), nerve conduction velocity (NCV) and nerve regeneration in the NGF, physiotherapy and combined treatment groups were significantly better than in the model group, with those in the combined treatment group improved to the greatest extent. At the 30th day there was no significant difference between the combined treatment group and the normal control group in terms of SFI, NCV, axon regeneration or myelin sheath thickness. The number of myelinated nerve fibers and the average axon diameter in the combined treatment group and normal control group were significantly higher than those in the model, NGF or physiotherapy group. Conclusions With NGF injection, additional application of USW diathermy and ES may significantly enhance the regeneration of the sciatic nerve and aid functional recovery after injury.
3.Comparative analysis of Brucellosis epidemic between Shanxi province and the country
Li-hong, XU ; Yong-fei, BAI ; Gui-fen, LIU
Chinese Journal of Endemiology 2012;31(1):84-87
Objective To analyze the Brucellosis incidence and to predict the trends of the disease in Shanxi province and the national in recent years,which could provide the reference for surveillance,prevention and control of the disease.Methods Brucellosis data which was reported monthly during January 2006 and December 2010 in Shanxi province and the data released by Chinese Center for Disease Control and Prevention during January 2005 and December 2010 were collected.Several indexes,such as the annual increasing number,the development rate,growth rate and other indicators were applied to compare Shanxi province with the national Brucellosis epidemic in recent years.What's more,the seasonal autoregressive integrated moving average model (ARIMA) was fitted respectively with the data of Brucellosis incident number reported monthly,so as to predict the prevalence status in the coming two years by verifying the fitting effect.Results Brucellosis prevalence of Shanxi province reached the peak in 2008,and the incidence number was 5397,which was 900 more than 2007.From the onset of decline after 2008,the prevalence decreased by 17.67% (906/5128) in 2010.However,national incidence of Brucellosis kept increasing before 2009 and the prevalence increased rapidly from 2007 to 2008,and the growth rate reached 39.16% (8442/21 560).Although the number of Brucellosis fell by 2041 cases in 2010 than in 2009,the rate of decline was only 5.14%(2041/37 734).The fastigium of Brucellosis was from May to July yearly whether Shanxi province or the country.The ARIMA models of Shanxi province and the nation were ARIMA [(1,0,1)(1,1,0)12] and ARIMA[(1,0,1)(0,1,1)12],respectively,according to the incidence numbers reported monthly.The fitting effect of models showed that the predicted values of the two models were both consistent with the actual situation and all predicted values fell within the 95% confidence limits,which depicted that they both fitted well.The predicted values depict that the incidence of Brucellosis overall trend was basically stable in Shanxi province,while the numbers in the nation would increase in a small extent in 2011 and 2012.The fastigium of Brucellosis was still from May to July yearly.Conclusions Brucellosis control measures are effective in Shanxi province,incidence of Brucellosis declining.The ARIMA model could predict the number of Brucellosis well,which can provide a valuable reference for the predication and evaluation of Brucellosis epidemic in the future.
4.The Current Situation and Countermeasures of Sexual Education of University Students
Qi YOU ; Jianhua ZHENG ; Bai XU ; Hong BO
Chinese Journal of Medical Education Research 2003;0(04):-
Universities are cradles of leadership and full-developed specific professional.Besides specific courses,reasonable sexual health education should be set up to make the students succeed when they grow up.
5.One case of bloodstream infection caused by Ureaplasma urealyticum
BAI Xu-chun ; KE Long-yan ; SU Nan-hong ; BAI Qin-ru
China Tropical Medicine 2022;22(11):1051-
Abstract: Objective To analyze a case of bloodstream infection caused by Ureaplasma urealyticum after abortion in Anxi County Hospital, so as to provide basis for the clinical diagnosis and treatment. Methods The diagnosis of Ureaplasma urealyticum in this patient with bloodstream infection was retrospectively analyzed. The basic clinical data and laboratory diagnosis data were collected, including the characteristics of blood culture curve, Wright staining of culture medium, drug sensitivity of Mycoplasma liquid identification, colony characteristics of solid medium, and the conclusion of targeted DNA sequencing. Through the comprehensive analysis of the above data, the rapid diagnosis of this case can be realized by optimizing the detection and diagnosis process. Results The clinical manifestations of this patient were fever of 38.5 ℃, CRP:14.85 mg/L, WBC:14.33×109/L, NET: 85.40%, PCT: 0.12 ng/mL, IL-6: 665.6 pg/mL, positive after 3 days of blood culture, no bacteria were found in Gram stain, and sand-like purple bacteria were observed after adding Wright's stain. After inoculation in blood agar, Mycoplasma solid and liquid medium, no colonies were grown in blood agar, after 48 h and 5 d. On Mycoplasma A7 agar, the edge of brown fried egg colony was striature, and it could be identified as Ureaplasma urealyticum with the Mycoplasma ID & AST panel, which was resistant to quinolones and spectinomycin, but sensitive to macrolides, tetracyclines and lincomycin. Subsequent targeted DNA sequencing results were also confirmed for Ureaplasma urealyticum. Before receiving the report, clinical experience treatment with ceftriaxone metronidazole was used to fight infection with negative bacilli and anaerobic bacteria. Mycoplasma was not treated with targeted treatment. After 3 days, the patient's body temperature returned to normal, inflammation index decreased, and the patient asked to be discharged. Conclusions At present, there are few reports of bloodstream infection caused by Ureaplasma urealyticum, and the lack of clinical understanding can easily lead to misdiagnosis and missed diagnosis. In order to improve the detection rate of Mycoplasma in blood culture, it is necessary to optimize the detection procedure of blood culture and provide accurate diagnosis and treatment basis for clinical practice. However, it is clear from this case that Mycoplasma bloodstream infection cases are self-limited infection and can recover by themselves without targeted treatment in patients with normal immunity. Therefore, it is very important to protect the immunity of patients.
6.Identification of different varieties of Rhei Radix et Rhizoma based on chemical analysis.
Jian-hua GE ; Xun-hong LIU ; Hu XU ; Dan-yang XU ; Fa-ping BAI
China Journal of Chinese Materia Medica 2015;40(12):2309-2313
A HPLC method was established to determine the contents of the five anthraquinones and rhaponticin in the different varieties of Rhei Radix et Rhizoma. The difference existed in different varieties. The results showed that rhein and rhaponticin were marker substances which could be used to distinguish palm leaf groups rhubarb and wave leaf groups rhubarb. Authentic rhubarb didn't contain rhaponticin. Falsify rhubarb contains trace amounts of rhein. Rheum tanguticum contains abundant rhein. The ratio value of the content of rhein to chrysophanol could be used to distinguish R. tanguticum from the other two authentic varieties (R. palmatum and R. officinale). The content of rhaponticin varied largely in different varieties of wave leaf groups rhubarb.
Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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analysis
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Quality Control
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Rheum
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chemistry
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classification
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Rhizome
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chemistry
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classification
7.A biomechanical study on torque resistance of distal radioulnar joint by extra-and intra-articular reconstruction
Xin WANG ; Jihai XU ; Lu BAI ; Shengwei WANG ; Jiadong PAN ; Hong CHEN ; Weiwen ZHANG
Chinese Journal of Orthopaedics 2013;33(11):1135-1140
Objective To compare the torque resistance effect with different types of reconstruction of the distal radioulnar joint (DRUJ) dislocation,in order to explore biomechanical basis for clinical practice.Methods Six adult cadaver forearm were used,including 4 males and 2 females.The average death age was 64.9 years (range,36-78 years).Three were right side,3 were left side.The DRUJ dislocation model was made after the standardized resection of the palmar and dorsal DRUJ ligament.Clinic reconstruction methods of the DRUJ include trans-bone tunnel renconstruction (intra-articular reconstruction) and Looptie up reconstruction (extra-articular reconstruction).The mechanical properties as follows:torque velocity:5°/min,maximum torque angulation:90°,maximum torsion force:1 N· mm.Each limb was detected for the torque mechanic under four conditions:normal,DRUJ dislocation,intra-articular reconstruction and extra-articular reconstruction.Results Each limb was inspected for intact mechanic baseline and without the visual damage to the bone.The average pronation torque resistance on normal condition was (0.44±0.10) N·mm,(0.37±0.09) N·mm on DRUJ dislocation group,(0.45±0.09) N-mm on intra-articular reconstruction group,and (0.42±0.09) N·nun on extra-articular reconstruction group.Pronation torque resistance of DRUJ dislocation group was apparently lower than the normal group (t=2.043,P=-0.047).The pronation torque resistance reconstruction group had no significant difference with normal group.The average supination torque resistance on normal condition was (0.56±0.16) N·mm,while on DRUJ dislocation group was (0.42±0.11) N-mm,on intra-articular reconstruction group was (0.54±0.16) N·mm,on extra-articular reconstruction group was (0.51±0.13) N·mm.There were no apparent differences among four groups.Conclusion Both internal and external reconstruction could recover the rotation stability and normalize the torque resistance,without statistical difference.
8.CT perfusion of pulmonary carcinoma:the correlative study with fluoro-deoxyglucose positron emission tomography and tumor microvessel density
Ning XING ; Zu-Long CAI ; Shao-Hong ZHAO ; Li YANG ; Bai-Xuan XU ; Fu-Lin WANG ;
Chinese Journal of Radiology 2000;0(11):-
Objective To investigate the correlation between CT perfusion parameters of pulmonary carcinoma and standardized uptake values(SUV)derived from ~(18)F-fluoro-deoxyglucose positron emission tomography(~8F-FDG PET)and tumor microvessel density(MVD),and to determine the validity of CT perfusion in assessing tumor angiagenic activity of pulmonary carcinoma.Methods Fifty patients(mean age 57.5,17 females)with pulmonary carcinoma underwent CT perfusion using 16-slice helical CT.Blood flow(BF,ml?100g~(-1)?min~(-1)),blood volume(BV,ml?100g~(-1)),mean transmit time(MTF,s)and permeability surface area product(PS,ml?100g~(-1)?min~(-1))were analyzed.SUV of PET was calculated in 14 patients.The CD34 immunohistochemical staining was used for tumor microvessel counting.CT perfusion parameters of pulmonary carcinoma were correlatively studied with SUV and tumor MVD.Pearson's correlation analysis was performed to evaluate the association between CT perfusion parameters and SUV and MVD.Results The average values of BF,BV,MTT and PS were 97.30 ml?100g~(-1)?min~(-1), 8.86 ml?100g~(-1),6.75 s and 34.52 ml?100g~(-1)?min~(-1),respectively.The average value of MVD was 61.82/FOV.The mean value of SUV was 5.96.There was positive correlation between BF and SUV(r= 0.727,P
9.An experimental study on the treatment of femoral head necrosis with transplantation of marrow stem cells
Bin BAI ; Hai-Li CAO ; Kai-Bing WANG ; Hong-Hui WANG ; Wei XU ; Shou-Xin ZHANG ;
Journal of Interventional Radiology 1994;0(02):-
Objective To investigate the effect and mechanism of transplantation of marrow multi- function stem ceils in treating femoral head necrosis.Methods Sixty japanese rabbits were divided into A,B and C groups randomly.After creation of the models of hormone induced necrosis of femoral head;A group was designated as the treatment,B as the control and C as the normal groups.The bone marrow of A group was extracted and isolated and then injected into the left femoral head and the right femoral head was decompressed by drilling only.The rabbits were killed at 8 weeks after the treatment and changes in various parameters were observed,including imaging data of molybdenum target films,CT and MRI;routine pathology with HE staining and ultrastructural alteration by election microscopy.Results Eight weeks after the treatment of transplantation of marrow multifunction stem cells,the X-ray showed only a little change but the typical appearances were revealed by CT and MRI.Pathohistologic manifestation demonstrated decrease of empty bone lacuna,increase of osteoblast and new bone formation.Election microscopy displayed abundant organelles in osteoblasts with few empty bone lacuna,in addition the tansplantation of marrow multifunction stem cells could obtain better reconstraction for the involved femoral head.Conclusions The treatment of transplantation of marrow muhifunction stem cells in femoral head necrosis could accelerate the process of repairing,worthy to be acknowledged as a good and valuable management in rabbits.(J Intervent Radial,2007,16:122-126)
10.The Progress of Biological Research of Medicinal Fungus Shiraia bambusicola
Xiao-Ming JIA ; Xiao-Hong XU ; Bai-Chuan ZHUANG ; Hai-Ping LIN ;
Microbiology 1992;0(03):-
The research status is reviewed on taxonomic position, ecology, biological active matter and artificial cultivation of Shiraia bambusicola. Following problems are presented: whether there are new species and host specificity of Shiraia bambusicola. Since the artificial cultivation of stroma of Shiraia bambusicola has not been success, Shiraia bambusicola is in situation of emerge of itself and perish of itself so that it is not beneficial to resource protection and continual utilization of this medicinal fungus. It is pointed out that molecular biology of Shiraia bambusicola should be further researched and technology of artificial cultivation of Shiraia bambusicola should be explored in order to exploit and usage of Shiraia bambusicola.