1.Risk assessment of secondary transmission induced by imported malaria in Jiangxi Province
Lei LEI ; Zhigui XIA ; Zhihong LI ; Shang XIA ; Yanfeng GONG ; Ning XIAO
Chinese Journal of Schistosomiasis Control 2017;29(2):182-187
Objective To assess the risk of secondary transmission induced by imported malaria in Jiangxi Province,so as to provide the evidence for adjustment of malaria surveillance strategies in the key groups and areas. Methods The Delphi method was used to establish the secondary transmission risk indicator system and the weight of each index was obtained. The data of malaria prevalence,vector distribution and intervention capacity were collected in 100 counties of Jiangxi Province from
2012 to 2015. The transmission potential index(TPI),intervention capacity index(ICI),and malaria risk index(MRI)were calculated for each county. The risk map was drawn with GIS software. Results The top ten counties with highly potential risk indicators were Linchuan District(2.131),Xinzhou District(1.609),Jiujiang County(1.404),Zhanggong District(1.365),
Fengcheng City(1.225),Qingshanhu District(1.184),Yudu County(1.171),Dingnan County(1.018),Xunyang District(1.015)and Zhushan District(1.006). The high risk areas were mainly distributed in the regions of the capitals of their prefectures and in counties with more floating population. Conclusions There are the risk of the secondary transmission induced by
imported malaria in Jiangxi Province. The high risk of the secondary transmission is shown in the areas with more floating population and weaker intervention capacity.
2.Effect of the chosen incision on corneal astigmatism after implantable collamer lens surgery
Xia, JIANG ; Qing-Song, ZHANG ; Xiao-Hua, LEI
International Eye Science 2014;(6):1174-1176
AIM: To evaluate the effect of the chosen incision on corneal astigmatism after implantable collamer lens ( ICL) surgery.
METHODS:The study included 195 eyes of 102 patients, and all eyes were randomly divided into two groups: the chosen incision group ( Group A, 97 eyes) and temporal corneal incision ( Group B, 98 eyes ) . Before the operation, and 1wk, 1mo and 3mo after the operation, each patient was examined with corneal topography to observe the changes of corneal astigmatism.
RESULTS: Preoperative corneal astigmatisms were (1-26±0. 35) D in group A and (1. 28±0. 38) D in group B, thus there was no statistically significant difference ( P>0-05). One week postoperatively, the astigmatism were (0.93±0.29)D in group A and (1.32±0.33)D in group B. One month postoperatively, the astigmatism were (0. 85±0.16)D in group A and (1.27±0.18)D in group B. Three months postoperatively, the astigmatism were ( 0. 80±0-13)D in group A and (1. 25±0. 20) D in group B. The differences between the two groups were statistically significant (P<0. 01).
CONCLUSION: The chosen incision can reduce postoperative astigmatism to a certain extent after ICL surgery.
3.Influence of monochromatic light exposure on the growth of Müller cell and the expression of myopia-related cell factors in vitro
Jing, XIA ; Xiao-feng, ZHANG ; Wei, XIA ; Lei, ZHONG ; Zheng-tai, SUN ; Ying-ming, WANG
Chinese Journal of Experimental Ophthalmology 2013;(5):446-451
Background Research showed that exposure of 530 nm monochromatic light can induce myopia in animal,and retinal Müller cells participate in the formation of myopia.However,the effect and mechanism of retinal Müller cells during the formation of monochromatic light induced-myopia is below understood.Objective This study was to investigate biologic characteristics of rat retina Müller cells and the expression of cell factors in Müller cells after being illuminated by the 530 nm monochromatic light,and discuss the role of the retina Müller cells in myopia induced by monochromatic light.Methods Immortalized rat retinal Müller cells were cultured with DMEM containing 10% fetal bovine serum in a self-made cell incubator with monochromatic light by adjusting luminance of 530 nm LED source.The cells were exposed to 125,250 and 500 lx luminance respectively for 6,12 and 24 hours,and the cells without light-irradiation were used as control.The growth of the cells under the different light time and different illuminations was described by MTT as the absorbance at the wavelength 570 nm (A570),and cell cycle analysis of Müller cells was performed by flow cytometry 48 hours after cultured,and the expression of transforming growth factor-beta 1 (TGF-β1),tyrosine hydroxylase(TH),inducible nitric oxide synthase(iNOS) and basic fibroblast growth factor(bFGF)in the cells were detected by reverse transcription PCR(RT-PCR),respectively.Results The Müller cells were uniform in size with polygonal shape and defined edges.No statistically significant difference was found in the A570 value in the cells of the 125 lx and 250 lx illuminated groups compared with the control group in various time points(P>0.05).However,significant lowing was seen in the A570 value in the cells of the 500 lx illuminating for 12 hours and 24 hours in comparison with the control group (P =0.013,0.001).Compared with the control group,the ratio of the number between G2 and G1 phase was not significantly declined in 125 lx,250 lx illuminating for 48 hours (P =0.073,0.330),and the ratio in the 500 lx illuminating group was significantly lower than those in the 250 lx illuminated group and the control group (P =0.028,0.038).RT-PCR revealed that the expression of TGF-β1 mRNA in the cells was higher in the 250 lx illuminated group than that of the 500 lx illuminated group (P=0.006).The expression of iNOS mRNA was gradually upregulated in the 250 lx illuminated group compared with the control group (P =0.001),but that in the 500 lx illuminated group was downregulated (P =0.000).The expression of bFGF mRNA was raised in the 125 lx and 250 lx groups but reduced in the 500 lx group when compared with the control group(P=0.002,0.000,0.005).Also,the expression of TH mRNA was significantly increased in the 250 lx group(P=0.000),but decreased in the 500 lx group(P=0.000,P=0.001).Conclusions The monochromatic light of 530 nm can inhibit the growth of rat Müller cells and downregulate the expression of myopia-related cell factors and therefore exert effect in the formation of myopia.
4.Anti-depressant effect and mechanism of supercritical CO2 extract from Compound Chaigui Fang.
Lei CHEN ; Xiao-Fen ZHENG ; Xiao-Xia GAO ; Yu-Zhi ZHOU ; Xiao-Qing GUO ; Jun-Sheng TIAN ; Xue-Mei QIN
China Journal of Chinese Materia Medica 2014;39(14):2744-2750
The tail suspension test (TST), forced swimming test (FST) and chronic unpredictable mild stress (CUMS) model were used to evaluate the anti-depressant effect of supercritical CO2 extract from Compound Chaigui Fang (FFCGF). A nuclear magnetic resonance (NMR)-based metabonomics combined with multivariate statistical analysis was performed to explore the mechanism of FFCGF. Rats were conducted by CUMS procedure for 28 days and drugs were administrated at the same time. The body weight, sucrose preference, crossings and rearings in open-field tests were evaluated and the urine was collected simultaneously. The metabonomic profiles of rats' urine were analyzed by NMR and potential biomarkers were searched by multivariate statistical analysis. The results showed that administration of FFCGF significantly decreasing the immobility time in FST and TST and improving rats' body weight, sucrose preference, crossings and rearings in CUMS, which were indication that the anti-depressant effect of FFCGF was abvious. Significant differences in the metabolic profile of the CUMS treated group and the control group were observed, which were consistent with the results of behavioral tests. Decreased levels of acetic acid, succinic acid, 2-oxidation glutaric acid and citric acid and increased glycine and pyruvic acid in urine were significantly affected by the CUMS procedure and the 6 biomarkers were reversed evidently after administration of FFCGF. These changes were suggestion that the anti-depressant mechanism of FFCGF was associated with energy metabolism, lipid metabolism and amino acid metabolism.
Animals
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Antidepressive Agents
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chemistry
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isolation & purification
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pharmacology
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therapeutic use
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Behavior, Animal
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drug effects
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Body Weight
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Carbon Dioxide
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chemistry
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Depression
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drug therapy
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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pharmacology
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therapeutic use
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Male
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Mice
5.Comparison of adherence ability of bacteria on the surface of rigid gas-permeable contact lens made with different materials
Ying-ming, WANG ; Xue-feng, QIAN ; Xiao-feng, ZHANG ; Wei, XIA ; Lei, ZHONG ; Zheng-tai, SUN ; Jing, XIA
Chinese Journal of Experimental Ophthalmology 2013;31(8):717-721
Background Wearing contaclenincreasethe risk of infection of the cornea.Some studieshowed the gas-permeability of materialused foconstructing corneal contaclenione of the contributing factorrelated to corneal health.Objective Thistudy wato observe the in vitro adherence ability of differenbacterito rigid gas-permeable contaclense(RGP-CL) made with varioumaterials.MethodContaclensemade with hexafocon,enflufocon opolymethyl methacrylate (PMMA) were placed into Staphylococcuaureus,Staphylococcuepidermidis,oPseudomonaaeruginosbacterial suspension(0.5 MCF) fo24 hours.The strength of bacterial adherence watested and studied by the methyl thiazolyl tetrazolium (MTT) colorimetrimethod based on absorbance (value),and the vortex method waused to calculate the colony forming units.The bactericlump formation waexamined with scanning electron microscope (SEM).ResultMTcolorimetrimethod showed thathe adherence ability of Staphylococcuaureuto hexafocon (value) wasignificantly lowethan thato enflufocon and PMMA,respectively (q=7.379,8.207,P<0.01),buno significandifference wafound in the adherence ability of Staphylococcuaureubetween enflufocon and PMM(q =0.828,P>0.05).The adherence ability of Staphylococcuepidermidito XO and enflufocon walowethan thato PMM(q =14.000,12.800,P<0.01),buno significandifference wafound between the adherence of Staphylococcuepidermidito hexafocon and enflufocon material (q =1.200,P>0.05).There wano significandifference in the adherence ability of Pseudomonaaeruginosto all three material(F=2.155,P=0.138).The vortex method presented the colony forming unitof Staphylococcuaureuto hexafocon,enflufocon and PMMwith (37.9± 1.5)×106,(49.9±2.2)×106 and (67.4± 1.6)×106,respectively,with significandifference among them (F =206.240,P<0.01),showing the lowesvalue in hexafocon,the highesvalue in PMMand middle value in enflufocon (q=11.650,28.640,16.990,P<0.01),Moreover,colony forming uniof Staphylococcuepidermidito hexafocon,enflufocon and PMMwa(7.9 ± 1.3) × 106,(10.5 ± 1.5) × 106,(11.2 ±1.2) × 106,respectively.And thaof hexafocon walowethan one of the PMMmaterial (q =5.060,P<0.05).No significandifference wafound between hexafocon and enflufocon nobetween hexafocon and PMM(q =3.290,1.770,P>0.05).In addition,the resultthacorresponded to the vortex method were seen in the MTcolorimetriassay (F =0.232,P =0.799).SEM examination showed dispersed population of Staphylococcuaureuand Staphylococcuepidermidion the surfaceof hexafocon and enflufocon;while much more Staphylococcuaureuand Staphylococcuepidermidiadhered on the surface of PMMA,forming net-like appearance.Conversely,high numbeof Pseudomonaaeruginoswaseen on the surface of all three materials,withounoticeable differencein the bacterial shape and quantity on each of the material.ConclusionThe adherence ability of bacterito PMMistrongethan thaof hexafocon and enflufocon,and gas-permeable material of RGP-CL doenoimpacthe adherence ability of bacteria.
6.Hand hygiene management among health care workers in stomatology medical institutions in Zunyi
Xia ZHU ; Ye XIAO ; Shaowei ZHANG ; Pengyuan LEI ; Weiwei HAO ; Pengyi GUO ; Chen KAN
Chinese Journal of Infection Control 2016;15(8):570-572
Objective To understand the current management situation of hand hygiene (HH)among health care workers(HCWs)in stomatology medical institutions in Zunyi,and provide basis for the scientific management of HH.Methods In October-December 2014,the on-site observation and questionnaire survey were adopted to investigate current management situation of HH in 127 stomatology medical institutions in Zunyi.Results The rates of qualified installation of sink,faucet,detergent,alcohol-based hand rub,and hand-drying facilities were 60.63%, 11 .02%,92.13%,22.05%,and 37.80% respectively.Except detergent and sink,the installation of other HH supplies in stomatology medical institutions in Zunyi were not ideal.The correct rate of HH among HCWs was 33.07%(42/127),qualified rates of HH methods among HCWs in departments of stomatology,comprehensive out-patient departments, stomatological clinics,and teeth-cleaning clinics were 50.00%,23.08%,23.53%,and 0 respectively.Conclusion HH facilities are not perfect in primary stomatology medical institutions in Zunyi,health ad-ministrative departments’supervision on HCWs’HH is inadequate,the awareness rate of HH knowledge and com-pliance to HH among HCWs are both low.
7.Effects of agarwood formation induced by Fusarium sp. A2 on distribution and community composition of endophytic fungi in leaves of Aquilaria sinensis.
Xiao-Xia GAO ; Wei-Ping ZHOU ; Lei WANG ; Wei-Min ZHANG ; Han-Jing YAN
China Journal of Chinese Materia Medica 2014;39(2):197-203
The aim of the paper is to observe the distribution of the endophytic fungi in leaves of Aquilaria sinensis by using permanent paraffin-cut section, optical microscope photography and histochemistry. Total DNA was extracted with modified CTAB method and rDNA ITS regions of plant and endophytic fungi were amplified with eukaryotic universal primers. The rDNA ITS amplicon was characterized by RFLP analysis, sequencing of rDNA ITS library and phylogenetic analyses using PAUP by maximum parsimony. Fusarium sp. A2 was used to induce the formation of resinous in A. sinensis trees. As a result, endophytic fungi mainly distributed in spongy and phloem in leaf. Endophytic fungi distributed in the phloem in agarwood-producing tree and had a relatively high abundance. Phoma sp. and Collectrotrichum sp. were the absolute advantage species in the leaf tissues of non-resinous and agarwood-producing tree, respectively. Collectrotrichum sp. was the only fungal species detected both in the two types of A. sinensis with different levels of abundance. The culture-independent molecular method can be used to identify fungal species directly and rapidly from the plant tissues. Endophytic fungal communities in non-resinous and agarwood-producing A. sinensis leaf tissues were quite different.
Cluster Analysis
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DNA, Fungal
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genetics
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Endophytes
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classification
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genetics
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physiology
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Fusarium
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classification
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genetics
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physiology
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Phylogeny
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Plant Leaves
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metabolism
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Thymelaeaceae
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microbiology
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Wood
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metabolism
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microbiology
8.Advance in the study of compounds inducing the expression of heme oxygenase-1.
Xue-Lei LUO ; Xiao-Xia ZHOU ; Zhi LIU
Acta Pharmaceutica Sinica 2008;43(6):553-558
Heme oxygenase-1 (HO-1) is a cellular stress protein, and its expression plays an important regulatory role in a lot of physiological and pathological processes. Although the expression of HO-1 in most tissues of body is low, a number of clinical and pharmacological experiments have proved that many compounds can induce HO-1 expression. The increase of HO-1 expression is the result of regulating different signaling pathways and transcription factors, and this induction of HO-1 is suggested to be partially therapeutic efficacy of these compounds. This article summarizes some kinds of compounds in this field of research at home and abroad over the last 10 years, and provides a brief analysis of the mechanism.
Animals
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Antineoplastic Agents
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pharmacology
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Antioxidants
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pharmacology
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Coumarins
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pharmacology
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Drugs, Chinese Herbal
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pharmacology
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Enzyme Induction
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drug effects
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Gene Expression Regulation, Enzymologic
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Heme Oxygenase-1
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genetics
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metabolism
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Humans
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Lovastatin
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pharmacology
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Nitric Oxide
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pharmacology
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Peptide Hormones
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pharmacology
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Probucol
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pharmacology
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Signal Transduction
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Transcription Factors
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metabolism
9.Application of anterolateral thigh myocutaneous flap using computed tomography angiography for mouth-floor reconstruction after resection of middle-late stage carcinoma of mouth floor.
Shihong LUO ; Jingang XIAO ; Libo SUN ; Li ZHANG ; Liangnan ZENG ; Delin XIA ; Hangyu ZHOU ; Lei ZHANG
West China Journal of Stomatology 2015;33(4):409-413
OBJECTIVEThe aim of this study was to investigate the value of free anterolateral thigh myocutaneous flap (ALTMF) and computed tomography angiography (CTA) for the reconstruction of mouth-floor defects after the resection of middle-late stage carcinoma of the mouth floor.
METHODSSixteen cases of middle-late stage carcinomas of the mouth floor underwent radical resection, and mouth-floor and tongue defects were reconstructed with ALTMF. CTA was applied to plan the lateral circumflex femoral artery (LCFA) and its perforating vessel, which was verified during the operation.
RESULTSThe position of the perforating vessel in the operation was fully consistent with that designed by the preoperative CTA. All 16 flaps completely survived. The appearance and function of all cases were both satisfactory. All donor sites were primarily closed and healed without functional morbidity. During the follow-up period of 6-36 months, 15 cases survived with acceptable aesthetic and functional results in mouth floor and tongue reconstruction, except for 1 case (T4N2M0) that died of metastasis carcinoma 10 months after operation.
CONCLUSIONCTA can accurately locate the LCFA and artery perforator. Preoperative perforator planning using CTA in ALTMF transplantation is a reliable and useful method thatresults in safe operation with optimal outcome. The ALTMF is an ideal choice for the reconstruction of soft tissue defects after the resection of middle-late staie carcinoma of the mouth floor
Angiography ; Carcinoma ; Free Tissue Flaps ; Humans ; Mouth Floor ; Myocutaneous Flap ; Patient Care Planning ; Reconstructive Surgical Procedures ; Thigh ; Tomography ; Tongue
10.Studies on Mycoplasma genitalium infection in patients with chronic non-bacterial prostatitis
Shu-Xia ZHONG ; Shan-Shan LI ; Hua ZHENG ; Xiao-Hong LI ; Bei-Lei YUN ;
Chinese Journal of Laboratory Medicine 2003;0(09):-
Objective To study the role of Mycoplasma genitalium(Mg)infection in chronic non- bacterial prostatitis.Methods Culture and two PCR systems were performed on prostatic secretion specimens from 487 patients with chronic non-bacterial prostatitis and 75 health men in Changchun regions. Results positive rate of Mg in the prostatic secretion from the 487 patients was 7.39% (36/487);In the controls,the positive rate of Mg was 1.33%(1/75).The differences between the two groups were statistically significant (X~2=3.88,P