1.Research status on the effect of surface treatment of titanium & titanium alloy on bonding strength
International Journal of Biomedical Engineering 2009;32(4):244-246
Titanium & titanium alloy are popular in dentistry as dental material because of their good mechanical properties and extremely good biocompatibility. The bonding strength between the titanium and the resin agent is the decisive factor in evaluating the success of resin-bonded restoration. Appropriate surface treatment on the titanium is an effective way to reinforce the bending strength. The purpose of this review is to summarise the relevant studies and introduce some latest findings.
3.Percutaneous Laser Hypothermia in the Treatment of Lumbar Discogenic Pain
Guangping LUO ; Hong LIU ; Yesheng XIAO
Chinese Journal of Minimally Invasive Surgery 2005;0(07):-
Objective To evaluate the efficacy of percutaneous laser hypothermia in the treatment of lumbar discogenic pain. Methods From June 2006 to March 2008,35 patients with lumbar discogenic pain were treated by low-frequency laser hypothermia in our hospital with 1 second impulse time,1 second interval time,3.5 w power,and 30 minutes duration. The effectiveness of the therapy was evaluated afterwards. Results Among the cases,15 patients were treated by one operation,20 patients received a second therapy,and 6 underwent the therapy for totally 3 time; the treatment was effective in 32 cases (excellent in 7,good in 24,and fair in 1). The therapy is ineffective in 2 cases. One case was converted to open surgery for unsatisfying outcomes of the laser hypothermia. The total effective rate was 91.4%(32/35),and fineness rate was 88.6%(31/35). Conclusions Percutaneous laser hypothermia is an effective treatment for lumbar discogenic pain. The indications for the procedure should be selected strictly.
4.Clinical analysis of psychological problems in patients with rheumatic diseases
Xiaomeng LUO ; Ying LIU ; Weiguo XIAO
Chinese Journal of Rheumatology 2017;21(7):475-479
Objective To study the mental status and its influencing factors of patients with rheumatic disease. Methods Three hundreds and eighty-one patients with rheumatic diseases were assessed with the self-rating anxiety scale, self-rating depressive scale, Eysenck Personality Questionnaire symptom checklist-90, and demographic characteristics questionnaire. The comparison among groups were tested by t tests, Spearman's correlation analysis. Results Patients with anxiety symptoms accounted for 35.96%, and pre-valence rate of depression was 48.03%. The gender (r=0.87, OR=2.34) and duration (r=0.006, OR=1.006) were the risk factors and the C4 (r=-2.63, OR=0.07) was the protective factor. In patients with systemic lupus erythematosus, depression was related to education (Z=2.228, P=0.026), disease duration (Z=-2.015,P=0.044), IgG level (t=-2.266, P=0.027), T cell subsets CD8 (Z=1.981, P=0.047) and CD3 (Z=1.967, P=0.049). Anxiety was related to education (Z=2.452, P=0.014), duration (Z=-2.054, P=0.04), complement C3 (t=2.035, P=0.045), C4 (Z=-2.204, P=0.028) and IgG level (t=-2.126, P=0.036). The value of CRP(Z=-1.984, P=0.047) and IgM (t=2.243, P=0.028) of rheumatoid arthritis patients were higher in the depression group. The depression group was different in disease duration (Z=-2.631, P=0.009), gender ( χ2=4.415, P=0.042), ESR (Z=2.17, P=0.023) and CD3 cell (Z=2.023, P=0.043) in Sj?gren's syndrome patients. Correlation analysis showed positive correlation between the score of SDS, SAS and the P value (r=0.21, P=0.01) (r=0.14, P=0.007) N dimension (r=0.52, P=0.01) (r=0.55, P=0.007) of EPQ. There were negative correlation between the score of SDS, SAS and the E dimension (r=-0.23, P=0.01) (r=-0.14, P=0.006) of EPQ. Conclusion The prevalence of depres-sion and anxiety is higher in patients with depressive and anxious symptoms. They are in older age, female gender, poor education, longer duration, lower complement and lower T cell subsets when compared with those patients without depression and anxiety. Patients who have an introverted, instable, nervous temperament are more likely to be depressed and anxious. Psychological assessment intervention and therapy should be carried out as early as possible.
5.Implement GSP to Enhance Chain Drug Stores'Core Competitiveness
Xinyuan XIAO ; Yuchuan LUO ; Huiqing LIU
China Pharmacy 2001;0(10):-
OBJECTIVE:To discuss the pathways to enhance core competitiveness by the implementation of the Good Supply Practice(GSP)management in Medicine Chain Drug Stores.METHODS:To analysis from sequentiae several aspects: consummate the quality system,create the brand value and conversion the management philosophy in drug retail trade.RESULTS & CONCLUSIONS:Through the implementation of the GSP to create efficiency with management,create brands with quality and offer best after-sale service and customer service so as to enhance enterprises' core competitiveness.
6.Application on the thickness of nerve fiber layer of the optic disc in pathologic myopia eyes by OCT
Zhi-Cheng, SHI ; Xiao-Liu, LUO ; Yu-Ai, LIU
International Eye Science 2014;(6):1100-1102
AIM: To analyze the application on frequency domain optical coherence tomography ( OCT ) technology of pathologic myopia optic disc neurosensory retinal thickness changes and its relationship with axis oculi, sex and age, and help for the early diagnosis of pathological myopia and primary open angle glaucoma.
METHODS:Collected 96 eyes of normal eyes ( axis oculi 23-24mm) and 153 eyes of pathologic myopia eyes ( axis oculi 25-27mm 80 eyes, >27mm 73 eyes). We measured the thickness of nerve fiber layer of the optic disc by OCT and analyzed their relationship with axis oculi, sex and age with multiple linear regression analysis.
RESULTS: The observation group showed significant smaller average thickness of peripapillary, superior, inferior, nasal than the control group ( P<0. 05 ); the difference in the temporal quadrant between the groups were no statistically significant differences (P>0. 05); The partial correlation coefficient of peripapillary average thickness of nerve fiber layer and axis oculi was -1. 31, gender was 5. 21, age was -0. 12.
CONCLUSION:The thickness of nerve fiber layer of the optic disc in the pathologic myopia eyes are decreased than normal eyes, axis oculi, sex and age are influenced factors. The pathologic myopia patients should use different index combined with optic nerve fiber layer thickness decreased to help for the diagnosis of early primary open angle glaucoma.
7.DNA strand breakage of pulmonary cells of rats induced by beryllium oxide.
Xiao-yu ZHANG ; Zhi-hong LIU ; Rong LUO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2008;26(3):174-175
Animals
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Beryllium
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toxicity
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Cells, Cultured
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DNA Damage
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drug effects
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Lung
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cytology
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Male
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Rats
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Rats, Sprague-Dawley
8.Encephalic lymphomatoid granulomatosis.
Li YU ; Zhen-Xi LIU ; Sha XIAO ; Cheng-Yi LUO
Chinese Journal of Pathology 2005;34(2):121-122
9.Degeneration and establishment of occlusal wear facets
Liyuan XIAO ; Jing ZHANG ; Hao LIU ; Yun LUO
Chinese Journal of Tissue Engineering Research 2013;(33):6027-6033
BACKGROUND:Tooth wear is the physiological change that accompanied by a person’s life, type and nature, maxil ary and mandibular occlusion status, physical status, and living environment may affect it.
OBJECTIVE:To review the occurrence and development of tooth wear, as wel as research on the morphology of wear surface.
METHODS:The PubMed database was searched by the first author for the articles from January 1952 to
December 2012. The articles on the generation of tooth wear facets, macroscopic and microscopic studies of occlusal wear facets, wear measurement method, relationship between tooth wear and oral diseases, and
application of tooth wear facets in forensic research were included. The key words were“tooth, wear, diet,
information, dentistry, anthropology”in English. A total of 59 articles were included according to the inclusion criteria for review.
RESUTLS AND CONCLUSION:With the development of wearing, some oral clinical symptoms may occur. Just as there are no same fingerprints in the world, the individual tooth wear facet is unique. Therefore, the research on occlusal wear facets has great significance for understanding the diet habits, cultural development, age and other information, as wel as for dentistry, anthropology and forensic science. The macroscopic and microscopic study of tooth wear surface can provide a large amount of individual information. The current studies on tooth wear facets cannot ful y exhibit al the implicated information, so the further studies are needed.
10.Comparison of Humoral Immunity Indexes of Acute Glomerulonephritis and Nephritic Syndrome in Children
xiao-ju, LUO ; xue-mei, LIU ; hu, DOU
Journal of Applied Clinical Pediatrics 1992;0(05):-
Objective To compare the humoral immunity features of acute glomerulonephritis and nephritic syndrome(NS) in children for earlier differential diagnosis and rational administration.Methods Nephelometry was used to determinate the serum level of immunoglobulin(Ig)G,IgA,IgM,C3,C4 in children by England MININEPH machine and correlated reagent. The serum level of IgE was determined by IgE enzyme linked immunosorbent assay(ELISA),assay ELISA kit of America E&ELABSINC company. Immunoturbidimetry and westergren method were used to detect anti-streptolysin O(ASO) and erythrocyte sedimentation rate(ESR),respectively.Results There were significant diffe-rence features of humoral immunity between acute glomerulonephritis and NS in children.IgG,IgA,IgE,C3,C4 had significant difference between acute glomerulonephritis children and healthy children(Pa