1.Impact of community healthcare service center in emergency response to natural disaster
Tian XIA ; Hongjun CAO ; Zhaoxi ZHOU ; Yan DAI ; Quan GONG
Chinese Journal of General Practitioners 2008;7(12):839-840
The Medical Healthcare Service Center,located at the Youxian District,Mianyang City of Sichuan Province,successfully rescued the people affected by the Wenchuan earthquake and the Tangjiashan barrier lake with great help from the senior hospitals.We suggest that the community healthcare service center could play an important role in emergency response system.
2.Effects of Keratinocyte Growth Factor 2(KGF-2) on Keratinocyte Growth, Migration and on Excisional Wound Healing
Xia CHEN ; Wei HU ; Wangui WEI ; Yan SHEN ; Yan CHEN ; Shengli YANG ; Yi GONG
Progress in Biochemistry and Biophysics 2009;36(7):854-862
Keratinocyte growth factor 2 (KGF-2) is a member of the FGF family that is mainly synthesized by mesenchymal cells and acta predominantly on epithelial cells in a paracrine manner. It is known to play an important role in fetal limb and lung development; skin wound healing and prostatic epithelial cell growth. The KGF-2 coding sequence were isolated from human kidney cDNA library, revealing that the Kgf-2 gene is also expressed in the kidney apparatus. Purified from prokaryotic E. coli cells, the effects of the recombinant KGF-2 protein in cultured keratinocyte were analyzed by using MTT assay and in situ TUNEL assay. Interestingly, results revealed that KGF-2 promoted keratinocyte cell growth by stimulating cell proliferation and attenuating cell apoptosis. These findings supported a few evidences that KGF-2 could contribute to alveolar epithelial cells against apoptosis. Cell migration assays for the first time revealed that KGF-2 could stimulate keratinocyte cell migration in vitro. In addition, in the pilot animal test, recombinant KGF-2 incorporated within the hydrogel dressing exhibited significantly stimulatory effect on cutaneous wound healing. These combined effects implicate a potential therapeutic application of human recombinant KGF-2 in the future.
3.Inhibitions of SphK1 inhibitor SKI II on cell cycle progression and cell invasion of hepatoma HepG2 cells.
Cai-Xia ZHANG ; Hong LIU ; Yu-Yan GONG ; Hong-Wei HE ; Rong-Guang SHAO
Acta Pharmaceutica Sinica 2014;49(2):204-208
Sphingosine kinase 1 (SphK1) plays critical roles in cell biological functions. Here we investigated the effects of SphK1 inhibitor SKI II on hepatoma HepG2 cell cycle progression and invasion. Cell survival was determined by SRB assay, cell cycle progression was assayed by flow cytometry, the ability of cell invasion was measured by Matrigel-Transwell assay and protein expression was detected by Western blotting. The results showed that SKI II markedly inhibited HepG2 cell survival in a dose-dependent manner, induced G1 phase arrest in HepG2 cell and inhibited cell invasion. SKI II markedly decreased the expressions of G1-phase-related proteins CDK2, CDK4 and Cdc2 and the levels of cell invasion-associated proteins MMP2 and MMP9. The results showed that SKI II inhibited cell cycle progression and cell invasion, implying SphK1 as a potential target for hepatoma treatment.
CDC2 Protein Kinase
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Cell Movement
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drug effects
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Cell Survival
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drug effects
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Cyclin-Dependent Kinase 2
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metabolism
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Cyclin-Dependent Kinase 4
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metabolism
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Cyclin-Dependent Kinases
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metabolism
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G1 Phase
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drug effects
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Hep G2 Cells
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Humans
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Matrix Metalloproteinase 2
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metabolism
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Matrix Metalloproteinase 9
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metabolism
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Phosphotransferases (Alcohol Group Acceptor)
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antagonists & inhibitors
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Thiazoles
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pharmacology
4.Analysis of risk factors of skin lesion of population exposed to arsenic via drinking water in Inner Mongolia
Zhi-wei, GUO ; Ya-juan, XIA ; Ke-gong, WU ; Yan-hong, LI
Chinese Journal of Endemiology 2011;30(6):638-641
Objective To study the risk factors of skin lesion (keratosis and abnormal skin pigmentation) of population exposed to arsenic via drinking water in Inner Mongolia.Methods A cluster sampling method was used to select 902 cases from Linhe district,Hanghou and Wuyuan county in Inner Mongolia and physical examination was done.They were interviewed for information by questionnaire.The sample of fingernails and drinking water were collected.Water arsenic (As) was analyzed by inductively coupled plasma mass spectrometry (ICPMS); fingernail As and Se content were analyzed by instrumental neutron activation analysis(INAA).Data were analyzed by univariate and multivariate non-conditional Logistic regression.Results Single factor analysis showed that risk factors of keratosis were age,pesticide,arsenic in nails,smoking,years of smoking,drinking of alcohol,arsenic content in drinking water,fluorosis and duration of drinking arsenic-containing water,while occupation,nail selenium content and vitamin were protective factors.There were 10 risk factors for pigment abnormalities,which were age,pesticide,arsenic in nails,smoking,years of smoking,numbers of cigarette smoked daily,drinking of alcohol,fluorosis,the arsenic content in drinking water and duration of drinking arseniccontaining water,while sex,occupation and nails with selenium were protective factors.The multivariate factor analysis showed that the risk factors of keratosis were age,pesticide and arsenic content in drinking water(OR =1.387,1.583,1.321,all P < 0.05),while occupation and vitamin were protective factors(OR =0.307,0.260,all P < 0.05).The risk factors of abnormal skin pigmentation were age,pesticide,arsenic in nails,fluorosis and arsenic content in drinking water(OR =1.724,2.636,2.741,3.699,1.863,all P < 0.05),while sex was protective factor(OR =0.255,P < 0.01 ).Conclusions Many factors have influence on endemic arsenism and a composite measure should be implemented to prevent it such as excluding arsenic from drinking water,health education,and a reasonably intake of nutrients.
5.Treatment of thoracolumbar spinal tuberculosis with single posterior debridement, bone grafting, internal fixation and local chemotherapy.
Ying-Qi YAN ; Man-Li XIA ; Jia-Ping DAI ; Sui-Liang GONG ; Gang CHEN ; Xiao ZHOU
China Journal of Orthopaedics and Traumatology 2015;28(4):323-326
OBJECTIVETo evaluate the clinical effects of single posterior debridement, bone grafting, internal fixation and local chemotherapy in treating thoracolumbar spinal tuberculosis.
METHODSFrom February 2009 to September 2012,11 patients with thoracolumbar spinal tuberculosis were treated by single posterior debridement, bone grafting, internal fixation and local chemotherapy. There were 7 males and 4 females, aged from 27 to 65 years old with an average of 53.7 years. The courses of disease was from 3 months to 2 years with the mean of 9 months. According to ASIA standard of spinal cord injury, 3 cases were grade C and 8 cases D. After treatment, clinical effects were evaluated by ASIA grade, visual analogue score (VAS) and Oswestry Disability Index (ODI); kyphosis Cobb angle change was observed by X-rays.
RESULTSEleven patients were followed up from 12 to 29 months with an average of 18 months. ASIA grade of spinal cord injury, 3 patients with grade C improved to grade D in 2 cases and grade E in 1 case 8 patients with grade D improved to grade E in 7 cases and unchanged in 1 case. VAS decreased from preoperative 6.10 ± 1.30 to 1.70 ± 0.80 at 3 d after operation (P < 0.05). ODI improved from preoperative (68.36 ± 10.41)% to (14.55 ± 8.99)% (P < 0.05) at 3 d after operation. Kyphotic Cobb angle was corrected from preoperative (22.64 ± 4.84)° to (4.27 ± 1.49)° (P < 0.05) on the 3rd day after operation, and angle loss was mild at final follow-up, there was no significant difference between postoperative at 3 d and final follow-up.
CONCLUSIONSingle posterior debridement, bone grafting, internal fixation and local chemotherapy for the treatment of thoracolumbar spinal tuberculosis can effectively remove the lesion, improve nerve function and correct deformity, has advantage of single incision, little trauma, and low recurrence rate. But it still need long-term and systemic treatment with anti-TB drugs.
Adult ; Aged ; Bone Transplantation ; Debridement ; Female ; Humans ; Internal Fixators ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Thoracic Vertebrae ; surgery ; Tuberculosis, Spinal ; therapy
6.Scalp expanded flap combined with IPL hair removal for large area scar on forehead.
Wang PENG ; You HONGWEI ; Chen LI ; Gong HUI ; Yan XIA ; Lu HUA ; Zhao LI
Chinese Journal of Plastic Surgery 2015;31(5):340-343
OBJECTIVETo investigate the therapeutic effect of scalp expanded flap combined with JPL hair removal for large area scar on forehead.
METHODSFrom Jul. 2010 to Nov. 2012, 9 cases with large area scar on forehead received treatment of adjacent scalp expanded flap combined with JPL hair removal. One the first stage, the expander was implanted under the scalp near the forehead scar, followed hy expansion process. When the expansion was completed, the expanded flap was transferred to cover the wound after scar excision. 10 days after flap transposition, the forehead hair line was designed and extra hair on flap underwent JPL hair removal. After 3-5 treatments, the hair on flap was almost removed.
RESULTSAll the scalp flaps survived completely. JPL hair removal had exact effect. The patients were followed up for 5-11 months. The hair density on the flap decreased hy more than 90%. The flap had a good match with surrounding facial skin in color, texture and thickness. The reconstructed forehead hair line was satisfactory.
CONCLUSIONSIt is a good option to reconstruct large area scar on forehead with scalp expanded flap comhined with IPL hair removal.
Cicatrix ; surgery ; Forehead ; injuries ; surgery ; Graft Survival ; Hair Removal ; methods ; Humans ; Scalp ; Surgical Flaps ; transplantation ; Tissue Expansion ; methods ; Tissue Expansion Devices
7.Pharmacokinetics and bioavailability study of neoline in Beagle dogs.
Xiao-hong GONG ; Meng-jie ZHAO ; An YUAN ; Yan LI ; Liang XIONG ; Cheng PENG ; Yun-xia LI
China Journal of Chinese Materia Medica 2015;40(13):2656-2660
This paper is aim to investigate the pharmacokinetics and absolute bioavailability of neoline in Beagle dogs, and provide a theoretical basis for further study. Ethyl acetate was used for liquid-liquid extracting after 10% ammonia alkalizing. The method of UPLC-Q-TOF-MS was established for the determination of neoline plasma concentrations. Beagle dogs were orally or intravenously administered with neoline for pharmacokinetic and absolute bioavailability study. Good linear relationship of neoline was found over the range of 0.1-4 mg x L(-1) (R2 = 0.9982) and 2-100 microg x L(-1) (R2 = 0.9945). Intra-and inter-day precision, expressed as the relativestandard (RSD) were less than 5.0%. Accuracy, expressed as the relative error (RE) was within 90.0%-115%. The recovery of neoline in dog plasma was more than 80%. After 6 mg x kg(-1) for ig and 1 mg x kg(-1) for iv administration of neoline, the main pharmacokinetic parameters were analyzed with Winnonlin software. t(1/2) were (313.88 +/- 63.18), (236.33 +/- 229.84) min, and AUC(0-infinity) were (58,027.40 +/- 14,132.69), (473,578.02 +/- 82,333.08) min x microg x L(-1) for ig and iv administration respectively. The absolute bioavail ability was (73.15 +/- 10.29) %. The method of UPLC-Q-TOF-MS described in the report was sensitive, reliable and specific, and suitable for pharmacokinetic study of neoline in Beagle dog. The high absolute bioavailability of neoline in dog suggested good absorption of neline which was worth of further investigation.
Aconitine
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analogs & derivatives
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chemistry
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pharmacokinetics
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Animals
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Biological Availability
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Dogs
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Drug Stability
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Female
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Male
8.Arthroscopic single-row and suture-bridge double-row fixation for rotator cuff tear
Yingqi YAN ; Gang CHEN ; Manli XIA ; Suiliang GONG ; Jiaping DAI ; Yushan ZHANG
Chinese Journal of Trauma 2014;30(9):924-927
Objective To compare the clinical effect of arthroscopic single-row and suture-bridge double-row fixation of full-thickness rotator cuff tear.Methods A retrospective study was conducted on 40 patients with full-thickness rotator cuff tear treated by single-row and suture-bridge double-row fixation between May 2010 and May 2012.Single-row rotator cuff repair was performed in 18 patients and doublerow repair in 22 patients.The two techniques were compared in aspects of complications,recovery time to daily life,time to achieve satisfaction score,re-tear rate,pre-and post-operative VAS,University of California at Los Angeles Shoulder Scores (UCLA),and American Shoulder and Elbow Surgeons (ASES).Results Mean period of follow-up was 15.6 months (range,13-24 months).Both treatment were effective in improving VAS,UCLA,and ASES,but the differences were insignificant (P > 0.05).Recovery time to daily life,time to achieve satisfaction score,and large rotator cuff re-tear rate were 69.2 ± 16.6)d,(196.4 ±24.6)d,and 4/5 respectively in single-row fixation,with significant differences from (54.1 ± 13.3)d,(165.0 ±20.6)d,and 1/8 in suture-bridge double-row fixation (P <0.05).Conclusion Both treatments are effective for rotator cuff reconstruction,but suture-bridge double-row fixation provides earlier recovery to daily life,shorter time to achieve satisfaction score,and lower incidence of large rotator cuff retear.
9.Expression of major histocompatibility complex in ovarian epithelial carcinoma
Li-Xin SUN ; Li-Juan YAN ; Li-Gong SUN ; Rui-Xia ZHAO ; Shao-Yun ZHANG ;
Cancer Research and Clinic 1997;0(03):-
Objective To investigate the numbers and the expression of MHC-Ⅰpositive cells in hu- man ovarian epithelial carcinoma tissues and provide the experimental data in the futher biological therapy of ovarian carcinoma.Methods Thirty one samples of ovarian epithelial carcinoma were analysed with flow cy- tometry for MHC classⅠexpression.Results The number of MHC classⅠcells(25.22?21.23,4.37?3.63)was fewer in ovarian epithelial carcinoma than that in normal ovarian tissues(43.56?18.47,7.43?5.87),and was related with pathologic grades(P
10.Survey and Improvement of Ventilator Disinfection:use and Management
Duoduo HE ; Mingrui CHEN ; Yan YANG ; Pengyun XIAO ; Xia GONG ; Zhihong GUO
Chinese Journal of Nosocomiology 2009;0(21):-
OBJECTIVE To understand the disinfection,use and management of ventilator for the sake of regulation.METHODS By interviewing and on-site survey,we understanded the method and the process of disinfection and found out the using cycle of the ventilator system and the conditions of its management.RESULTS Among 44 ventilators 7 models were found:the management of 18 ventilators was irregular;the other 26 ventilators were disinfected by 2 kind and 4 types disinfect methods.their using cycles were unsure,their processes of disinfection were irregular.The responsibilities for the disinfection were unclear,lacking of monitoring the effect of disinfection and their management was irregular.CONCLUSIONS The disinfection of ventilator using and management must be regulated.