3.Trachoma rapid assessment of children aged 1 to 9 years in Hainan Province of China
Hai-Sheng, ZHENG ; Hong, HE ; Wei, LAO ; Biao, MENG ; Jian-Qiang, XING ; Xing-Wu, ZHONG
International Eye Science 2017;17(7):1212-1214
AIM: To investigate the incidence of trachoma in children aged 1 to 9y in Hainan Province and determine high-risk trachoma endemic and non-endemic areas in Hainan, and thus provide evidence for developing trachoma control and prevention therapy.METHODS:The areas of investigation were chosen on the basis of past literatures, expert interviews and survey on the spot.In 2013, Hainan Provincial Office of Blindness Prevention carried out the survey in 7 counties including Dongfang City, Wuzhishan City, Ledong County, Baisha County, Baoting County, Lingao County and Changjiang County.In these districts, 356 pupils including 192 boys and 164 girls were examined, their age ranging from 1 to 9 and their average age being 7 years old.The targeted students received the trachoma rapid assessment by the adoption of simplified trachoma classification system which was recommended by the World Health Organization.RESULTS: No case of active trachoma was found among the 356 students.CONCLUSION:The prevalence rate of trachoma in children under 9 years is less than 5% in Hainan Province.Active trachoma is not a public health issue in Hainan Province.
4.Isolation and Screening of Endophytic Antifungal Bacteria from Mangroves
Zhen-Ming CHEN ; Jin-Jian HE ; Hong HE ; Xing-Feng ZHANG ; Wen-Dong SONG ;
Microbiology 1992;0(03):-
The endophytic bacteria of the mangroves were studied in this paper. The results show that there are 1.728 (0. 195 -4.225)?104cfu/g (fw) bacterial endophytes in the variety of mangroves, the most population of the endophytic bacteria was found in Rhizophora stylosa, the figure was4. 225?104cfu/g (fw) , the next was Bruguiera gymnorrhiza, Aegiceras corniculatum, Kandelia candel and Avicennia marina. In parts of the mangroves, the contents of the bacteria in stem was the most, the figure was 1. 649?10 cfu/g (fw) , then the root and the leaf. Of the bacteria, about 43. 53% strains expressed the antagonism against the growth of the plant pathogens, such as Fusarium oxyspontm f. sp. cubense , Colletotrichum sp. and Rahtonia solanaceance etc. and these bacteria were identified as Bacillus sp. . The results also showed that 9 of the 13 strains (69. 23% ) could promote the growth of the tomato, while 4 strains (30. 77% ) restrained the tomato's growth.
5.Study on preparation process and formulation optimization of herpetin liposomes.
Xin ZHANG ; Rui TAN ; Jian GU ; Li-Li HE ; Li-Na FAN ; Xing-Mei NAN
China Journal of Chinese Materia Medica 2014;39(6):1007-1010
Herpetin (HPT) is an active monomer constituent isolated from lignanoid in seeds of Herpetospermum caudigerum. HPT shows inhibitory effects in hepatic injury and HBV-DNA and the replication. In the study, we successfully prepare herpetin liposomes by film dispersion method for the first time. The prescription process was optimized, with the entrapment efficiency as the index. According to the optimized prescription, the mass ratio of HPT: phospholipids: cholesterol was 2.44:78.05: 19.51, the hydration and de-molding process was performed with 0.5% F68 solution at 50 degrees C, and the water-bath ultrasonic time was 20 min. The HPT liposomes prepared by this method showed an average entrapment efficiency of (94.50 +/- 2.15)% and a particle size of (119.2 +/- 10.7) nm, which was consistent with the trial expectations and will lay a solid foundation for the hepatic targeting delivery system in future.
Chemistry, Pharmaceutical
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methods
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Cholesterol
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chemistry
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Drug Compounding
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methods
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Drugs, Chinese Herbal
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chemistry
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Lignans
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chemistry
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isolation & purification
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Liposomes
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chemistry
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Phospholipids
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chemistry
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Ultrasonics
6.On expression of VEGF-C and its receptor in breast carcinoma tissue and in peritumoral tissue and their clinic significance
Xiao-Jun MA ; Yong-Dong PU ; Jian-Miao HE ; Liang-Hong NI ; Hong-Xing JIA ;
Cancer Research and Clinic 1997;0(03):-
Objective To study the expression of VEGF-C and its receptor in breast carcinoma tissue and in peritumoral tissue,as well as their clinic significance.Methods Immunohistochemistry SP method was used to examine the expression of VEGF-C and VEGFR3 in 70 cases of breast cancer and in its peritu- moral tissue.Results In all 70 cases of breast cancer,the positive expression rate of VEGF-C in breast car- cinoma tissue was 78.6 %,and its rate in peritumoral tissue was 54.3 %.There was a significant stastistic dif- ference between the two groups(P
7.Mechanics analysis on knee joint after virtual replacement
Jian-qiao PENG ; Zhan-lei ZHANG ; Shi-zhen ZHONG ; Er-xing HE ;
Chinese Journal of Tissue Engineering Research 2013;(52):8974-8980
BACKGROUND:Simulative dynamics provides advantages of repeatable and non-invasive to a model. Additional y, structural model of individualism improves the reliability of Finite Elemental Analysis. It is an optimal attempt to analyze mechanics of knee joint after virtual replacement surgery.
OBJECTIVE:To achieve dynamic information of contact stress upon knee joint surface by finite element analysis surgery for total knee arthroplasty postoperatively, and to provide objective data for further“surgery plan”.
METHODS:After scanning affected knee joint by CT/MR and scanning knee prosthesis by laser instrument, a model composed of prosthesis, knee joint as wel as its ligament was rebuilt computational y;dynamic lines were measured. After prosthesis instal ation&osteotomy performed by facility of Simulation in Mimics according to knee joint replacement standard, this model was imported into ANSYS so as for Meshing, Material assignment, load applied. Stress distribution was analyzed by Finite Element Method.
RESULTS AND CONCLUSION:The best finite element model of postoperative TKA 3D knee joint was obtained;dynamic data were tested to be approximately agreeable to those previous studies of direct measurement upon prosthesis. The experiment of analyzing structural deformation, stress distribution&internal energy change benefits to search the best position for prosthesis instal ation, osteotomy and surgical result prediction. Thus, these are indispensable data in surgery plan.
8.The research of quantitative salivary gland scintigraphy in the diagnosis of Sjgren's syndrome
Yi-Li GU ; Hai-Bo TAN ; He-Jian ZOU ; Xing-Dang LIU ;
Chinese Journal of Rheumatology 2000;0(06):-
Objective The purpose of this study is to determine whether the quantitative parameters of salivary gland scintigraphy are useful in the diagnosis of Sjgren's syndrome(SS).Method Forty patients with SS and 29 control subjects underwent salivary gland scintigraphy.Two indices,uptake ratio and maximum se- cretion were mearsured.The optimal cut-points of both indices were derived from receiver operative character- istic curve(ROC).The diagnostic value of the indices was assessed by the area under ROC curve(AUC~(ROC)). Results The optimal cut-point of uptake ratio was 5.5~5.7.The optimal cut-point of maximum secretion was 0.20.The sensitivities of both indices were 86.2%~89.7%.The specificity of uptake ratio was 63.4%~65.9%. The specificity of maximum secretion was 82.9%~85.4%.The AUC\+\{RoC\} of uptake ratio was 0.780/0,776.The AUC\+\{ROC\} of maximum secretion was 0.905/0,899.Conclusion The quantitative parameters of salivary gland scintigraphy may be useful in the diagnosis of Sj(?)gren syndrome.
9.The preliminary study on molecular biologic staging of non-small cell lung cancer lymph nodes
Yuan QIU ; Jian-Xing HE ; Han-Zhang CHEN ; Lin-Hu GE ; Xin XU ; Nan-Shan ZHONG ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(08):-
Objective To analyze negative lymph nodes of 34 non-small cell lung cancer(NCLC) patients with total correction by means of fluorescent quantitation PCR and immunohistcchemistry,and to form molecular bi- ology staging.Methods Clinical data and tissue samples of 193 lymph nodes were collected from 34 patients under- going resection for non-small cell lung cancer.Using fluorescent quantitation reverse transcription-polymerase chain reaction(RT-PCR) and immunohistochemistry method,lymph nodes were examined for CEA gene mRNA,P53 and CK to form molecular biology staging.All the patients were followed-up for an average of forty months.Results The CEAmRNA was identified in 21.7% (42/193) lymph nodes negative patients from 17 patients(17/34,50%); TMN staging was up-regulated in 8 patients;positive lymph nodes were increased in 9 patients.P53 and AE1/AE3 were identified 9.8%(19/193) from 11 patients,18.6 % (36/193)from 15 patients,separately;TMN staging was up-regulated in 2 patients of P53 examination and 5 patients of AE1/AE3 analysis;positive lymph nodes were in- creased in in 7 patients of P53 examination and 11 patients of AE1/AE3 analysis.There was obvious statistical sig- nificance in them,but the molecular biology staging based on the three markers was not an independent factor on re- currence and metasis of lung cancer.Conclusion CEAmRNA.P53 and AE1/AE3 analysis could find lung cancer micrometasis more sensitively to form molecular biology staging which was relative to the prognosis,but not an inde- pendent prognostic indicator.It might be good to the therapy strategy after operation.
10.The Techniques of Isolation and Determination of Ergosterol as the Indicator of Fungal Biomass
Xing-Mei XI ; Guang-Ming ZENG ; Hong-Yan YU ; Jian-Bing LI ; Guo-He HUANG ;
Microbiology 1992;0(03):-
Ergosterol is the important component of the fungal membrane, and having stable structure. This makes it a suitable indicator for growth of fungi. In the paper, isolation and determination techniques of ergosterol as the indicator of the fungal biomass were reviewed. The methods of extracting ergosterol include traditional saponification and refluxing, rapid physical disruption, rapid ultrasonication, supercritical fluid extraction and so on. The ergosterol determination methods are high performance liquid chromatography, gas chromatography-mass spectrometry, liquid chromatography-mass spectrometry, and thin-layer chromatography, et al. The application of these techniques was also introduced. Finally, the paper prospected the feasibility of applying the ergosterol as the indicator of fungal biomass in composting.