1.Application of Charge Transfer Reaction BetweenAlbendazole and Chloranilic Acid
Guizhi ZHAO ; Huakan LI ; Yue LIU ; Yuhua WANG
Chinese Journal of Analytical Chemistry 2001;49(4):400-402
The charge transfer reaction between albendazole and chloranilic acid in alcohol-acetone solution was studied spectrophotometrically. The apparent molar absorptivity is 8.03×103 L*mol-1*cm-1 at 525 nm. The Beer′s law was obeyed in the range of 0~280 mg/L of albendazode. The composition of complex is 1∶1. The proposed method was applied to the determination of albendazole tablets with satisfactory results.
2.Characteristics,diagnosis and treatment of interdigitating dendritic cell sarcoma
Junping LI ; Rusen ZHAO ; Yongtao WANG ; Bing LI ; Guizhi ZHANG
Journal of International Oncology 2014;(9):675-678
Interdigitating dendritic cell sarcoma (IDCS)is a rare malignant tumor of the dendritic cell, derived from the hematopoietic tissue.The major clinical manifestation of IDCS is superficial lymphadenopathy, and the enlarged lymph nodes may appear in some atypical ereas,such as the lung,kidney,bladder and the pleura,etc.With the development of the pathological diagnosis and the application of immunohistochemical staining and electron microscopes,the case detection rate is apparently improved.With the high degree of malignant,rapid progress and poor prognosis of the disease,currently,surgical therapy is still the main approach to the treatment of IDCS.
3.Hemostatic effect of carboxymethyl chitosan and its biosecurity properties
Xia LIU ; Guizhi ZHAO ; Yuji WANG ; Tingting CAI ; Wanping ZHU
Chinese Journal of Tissue Engineering Research 2017;21(22):3561-3566
BACKGROUND:Carboxymethyl chitosan (CMCS),a chitin derivative,has a good application performance that makes it become a safe and effective hemostatic material.OBJECTIVE:To determine the hemostatic effect of CMCS and its biosecurity properties.METHODS:(1) CMCS powder was scattered on the caudal vein and liver wounds of Sprague-Dawley rats,and the hemostatic time was recorded as experimental group,while the time for natural haemostasis of the wound was recorded as control group.(2) CMCS powder was scattered on the tail,femoral artery and liver wounds of ICR mice,and the hemostatic time was recorded as experimental group,while the time for natural haemostasis of the wound was recorded as control group.(3) CMCS,Sodium dodecyl sulfate solution and distilled water were respectively applied on the skin of albino rabbits in a skin irritation test.(4) A delayed-type hypersensitivity test of CMCS was carried out by intradermal injection of CMCS in guinea pigs.(5) An intradermal irritation test was carried out by subcutaneous injection of normal saline containing CMCS and normal saline,respectively.Another intradermal irritation test was carried out by subcutaneous injection of the supernatant of CMCS olive oil extract and olive oil,respectively.RESULTS AND CONCLUSION:(1) Compared with the control group,the hemostatic time for caudal vein and liver wounds were significantly shortened in the Sprague-Dawley rats in the experimental group (P < 0.01).(2) Compared with the control group,the time of hemostasis on the tail,femoral artery and liver wounds was significantly shortened in the ICR mice in the experimental group (P < 0.05 or P < 0.01).(3) The CMCS had no irritation to the skin of albino rabbits and no allergic reaction to the skin of guinea pigs.To conclude,the CMCS has good hemostatic effect on the wound in Sprague-Dawley rats and ICR mice,and has no skin irritation,allergic reactions and intradermal irritation reactions in albino rabbits and guinea pigs,which is a relatively safe hemostatic material.
4.Clinical research about heating infusion for premature infants to promote their restoration of physiological function
Yumei LI ; Chan FU ; Guizhi PENG ; Jichang CHEN ; Xuan TAN ; Yanjuan HUANG ; Man ZHAO
Chinese Journal of Practical Nursing 2010;26(5):4-6
Objective In order to know the effect of heating infusion for premature infants to pro-mote their restoration of physiological function. Methods Divided 160 premature infants who need infu-sion into the experimental group and the control group randomly, there were 80 cases in each group. Normal temperature infusion was used in the control group, while heating infusion was used in the experimental group, compared the body temperature, pluse, respiration, blood pressure, oxygen saturation and the blood ghcose between the two groups. Results There were significant difference about the indexes which had mentioned above between the two groups. Conclusions Heating infusion can effective promote the reha-bilitation of physiological function of premature infants.
5.Clinical study on the rapid maxillary and mandibular expansion companied with fixed appliance
Hailiang FENG ; Guizhi ZHAO ; Jie KE ; Rongxiu ZHANG ; Yandi ZHANG ; Quanhong LIN
Journal of Practical Stomatology 2016;32(2):207-211
Objective:To study the dental and skeletal changes after orthodontic treatment for malocclusion patients with rapid maxil-lary and mandibular expansion companied with fixed appliance.Methods:36 patients underwent the treatment with rapid maxillary and mandibular expansion companied with straight wire appliance.Pre-and post-treatment dental casts and lateral cephalometric radiographs were measured and compared.Results:After treatment,the maxillary and mandibular arch width perimeters increased(P <0.05).The anterior arch depths decreased(P <0.05).No significant differences were found in vertical skeletal variables(P >0.05).U1-SN and U1-NA decreased,L1-MP and L1-NB increased(P <0.05).Conclusion:Dental crowding can be solved effectively and occlusion re-lationship can be kept well with rapid maxillary and mandibular expansion companied with straight wire appliance without influence on the vertical skeletal relationship.
6.The effects of modified expander in the orthodontic treatment of the cases with Angel Ⅰ malocclusion
Lu LIU ; Jie KE ; Guizhi ZHAO ; Rui WANG ; Yang LIU ; Dong ZHENG
Journal of Practical Stomatology 2016;32(4):512-516
Objective:To investigate efficacy of modified expander in the treatment of non-extraction patients with Angel Ⅰ maloccul-sion.Methods:1 4 Angel Ⅰcases aged 1 0 -1 4 years treated by non-extraction and fixed rapid expander.Jaw bones of the cases were laser scanned before(T1 )and after treatment(T2).The differences of arch width and length between T1 and T2 were analyzed.The In-dex of treatment complexity,outcome and need(ICON)was used to assess the pre-treatment and post-treatment study models.Data were statistically analysed with SPSS1 3.0 software.Results:The arch width increased significantly from T1 to T2.Good occlusal rela-tionship and soft tissue profiles were achieved in all cases.All cases were evaluated as greatly improved by ICON.Conclusion:AngelⅠ malocclusion can be treated successfully by increasing arch width with fixed rapid expander technique without tooth extraction.
7.Modification of pendulum appliance
Guizhi ZHAO ; Lu LIU ; Jie KE ; Yang LIU ; Rui WANG ; Dong ZHENG
Journal of Practical Stomatology 2015;(6):863-865
Among several intraoral distalizing devices,the pendulum appliance is one of the most commonly used noncompliance appli-ances.It is widely used to correct Class Ⅱ molar relationship.More healthy teeth can be preserved with the using of pendulum appliance in the tooth extraction of borderline cases.The pendulum appliance was modified and used in clinic.Long-term observasion showed that the modified pendulum appliace is effective in orthodontic treatment.
8.The diagnostic value of antibodies in synovial fluid for rheumatoid arthritis
Ruixiang XU ; Yang LIU ; Wenhao WANG ; Jing ZHAO ; Guizhi ZHANG ; Jing YUAN
Chinese Journal of Rheumatology 2015;19(4):246-248
Objective To study the concentration of anti-cyclic citrullinated peptide antibody (CCP),rheumatoid factor (RF),immunoglobulin (Ig) in synovial fluid and serum of patients with rheumatoid arthritis (RA),and the positive rate of anti-keratin antibodies (AKA) and anti-perinuclear factor (APF) were also measured.The aim was to explore the diagnostic value of these antibodies in synovial fluid for RA.Methods Thirty RA patients were collected,synovial fluid were withdrawn from the inflamed joints and peripheral blood were collected at the same time.Anti-CCP antibody,AKA,APF and RF were measured.The cut-off value of CCP in synovial fluid was determined through operating characteristic curve (ROC curves) analysis.The antibody levels in serum and synovial fluid were compared.Statistical analyses were performed using t test,and Pearson's correlation test.Results The cutoff value of CCP in RA synovial was higher,which was 29.00 U/ml,with the sensitivity of 87.00% and specificity of 94.10%.There were significant differences in the concentration among anti-CCP antibody [(326±313) U/ml,(496±454) U/ml,t=-2.399,P<0.05],IgG [(57±39) mg/L,(173±86) mg/L,t=-7.4792,P<0.05),RF [(53±36) U/ml,(149±104) U/ml,t=-2.402,P<0.05] in synovial and blood serum respectively in RA patients.Conchsion The diagnosis of RA is enhanced if anti-CCP antibodies,RF and IgG in synovial fluid are examined.They are supplementary to RA diagnosis and are helpful for clinical practice,especially for patient with very recent-onset RA.
9.Establishment and preliminary evaluation of a rapid detection method for germ tube-specific antigens of Candida albicans
Guizhi ZHAO ; Huixia HAN ; Qiuhe SONG ; Baiyu ZHONG ; Hongguang LU ; Lu WANG
Chinese Journal of Dermatology 2011;44(12):861-864
Objective To establish a double-antibody sandwich enzyme linked immunosorbent assay (DAS-ELISA) for the rapid detection of germ tube-specific antigens of Candida albicans,and to evaluate its specificity and sensitivity.Methods A DAS-ELISA was established with the monoclonal antibody McAb03.2C1-C2 as the primary antibody,and horseradish peroxidase (HRP) labeled McAb03.2C1-C2 as the secondary antibody.The established assay was used to detect germ tube-specific antigens of Candida albicans in sera from 5 patients with systemic Candida albicans infection and from 6 rabbit models at 12,24,48,72hours,on week 1,2 after infection with Candida albicans.Results A good liner relationship was observed between the absorbance value at 495 nm and antigen concentrations when the titer of McAb03.2C1-C2 was 1 ∶ 4000 and the concentration of coated antigen varied from 1.25 to 40 μg/ml.The specificity and sensitivity of the DAS-ELISA were 95% and 92% respectively in the detection of germ tube-specific antigens in the rabbit models.The results of detection with DAS-ELISA in serum specimens from the patients were consistent with those with the routine method.Conclusions A DAS-ELISA is primarily established for the rapid detection of germ tube-specific antigens of Candida albicans,and has shown a satisfactory sensitivity and specificity in the animal model experiment.
10.The effects of maxillary protraction therapy with rapid maxillary expansion on class Ⅲ malocclusion: A meta-analysis
Zaidao XIONG ; Jie KE ; Guizhi ZHAO ; Qinghua LIN ; Xinming YANG ; Yihan XIAO
Journal of Practical Stomatology 2017;33(4):481-486
Objective:To evaluate the effects of maxillary protraction with or without rapid maxillary expansion in the treatment of Class Ⅲ malocclusion by Meta-Analysis.Methods:The randomized controlled trail,quasi-randomized controlled trail and the clinical controlled trail about the treatment of Class Ⅲ malocclusion by protraction with or without expansion were searched in the database of Cochrane Library,Embase,PubMed,Medline,CBM,Wan Fang,CNKI,VIP.2 authors qualified and extracted the data independently.Then the Meta-analysis was performed by using the RevMan 5.3 software.Results:7 studies with 228 cases were included,114 cases were treated by maxillary protraction with expansion and the other 114 cases by maxillary protraction without expansion.The Meta-analysis showed that:there was no significant difference in SNA,SNB,ANB and SN-PP except ANS-Me,U1-NA,SN-MP.A favorable improvement of the sagittal relationship between maxillary and mandibular was observed by using protraction whether with expansion or not.The expansion did not shorten the course of treatment,but it lowered the inclination of upper incisors,resulting in more clockwise rotation of mandibular plane and increase of the facial vertical dimension.Conclusion:Maxillary protraction with rapid maxillary expansion can be used in the treatment of class Ⅲ malocclusion with incisor labioclination.