1.Frontiers of modern radiotherapy techniques in management of breast cancer after breast-conserving surgery
Yanbo SONG ; Hongzhong LI ; Can HE
Chinese Medical Equipment Journal 2017;38(6):124-127
The latest progress of modern radiotherapy techniques in the management of breast cancer after breast-conserving surgery was introduced first.Then the clinical effect and the adverse effect of these advanced techniques were analyzed.Finally,in order to provide an up-to-date evidence based data on the role of modern radiotherapy techniques in the management of breast cancer,the importance of how to choose appropriate patients for these advanced techniques was discussed.
2.The correlation between YKL-40,sCD40L,AFP and coronary heart disease
Biao HE ; Haijian CHEN ; Can ZHANG
International Journal of Laboratory Medicine 2017;38(2):224-225,228
Objective To study the chitin enzyme protein(YKL-40),sCD40L,AFP and the correlation of hypertension with cor-onary heart disease(CHD).Methods 75 cases of elderly patients with CHD were selected as observation group,and then were di-vided into hypertension group and non hypertension group according to the blood pressure.103 cases of healthy elderly were select-ed as control group.ELISA method was used to detect YKL-40 and sCD40L,and AFP was detected by chemiluminescence immuno-assay.Results Clinical data comparison revealed that the relative risk of CHD with hypertension group and non hypertension of hy-perlipidemia,drinking,smoking,diabetes mellitus,were 1.56,1.33,1.23,1.15 times,data show that relative risk of CHD with hy-pertension were much greater than CHD without hyperlipidemia.The concentration of YKL-40 in CHD with hypertension(92.66± 12.04)ng/mL was significant higher than that in CHD without hypertension (57.08 ± 10.07 )ng/mL,and the concentration of sCD40L in CHD with hypertension (186.59 ± 69.63 )ng/mL was significant higher than that in CHD without hypertension (128.14±48.37)ng/mL(P <0.05).There was no significant difference in the concentration of AFP in patients with CHD with hy-pertension and non hypertension(P >0.05).Conclusion The levels of YKL-40,CD40L and AFP in the peripheral blood of elderly patients with CHD were significantly increased.And the concentration of sCD40L and YKL-40 was positively correlated with hy-pertension,which can be used to assess the stability and prognosis of CHD.
3.Clinical significance of detection of five kinds of serum pancreas islet auto-antibodies in patients with diabetes mellitus
Yingzhong HE ; Niwei HAN ; Yan ZOU ; Can HE
International Journal of Laboratory Medicine 2015;(6):768-769,771
Objective To observe the positive rates of five kinds of serum pancreas islet auto‐antibodies IA‐2A ,GADA ,ICA‐64KD ,ICA‐40KD ,IAA in type 1 diabetes mellitus(T1DM ) ,type 2 diabetes mellitus(T2DM ) and the normal population and their clinical significance .Methods The above 5 kinds of serum auto‐antibodies were detected in 22 cases of T1DM ,160 cases of T2DM and 20 healthy people by using the immunoblotting test .Then the detection results were analyzed .Results The positive rates of IA‐2A ,GADA ,ICA‐64KD ,ICA‐40KD and IAA were 45 .5% ,72 .7% ,45 .5% ,9 .1% and 9 .1% respectively in the T1DM group , 23 .8% ,28 .8% ,8 .8% ,3 .8% and 3 .8% respectively in the group T2DM ,and 0% in the normal control group .The IA‐2A positive rate in the T1DM group was higher than that in the healthy control group(P < 0 .05) .The positive rate of GADA in the T1DM group and T2DM group was higher than that in the healthy control group(P< 0 .01 ,P= 0 .005) ,the T1DM group was higher than the T2DM group(P< 0 .01) ,the positive rate of ICA‐64KD in the T1DM group was higher than that in the healthy control group and the T2DM group(P = 0 .002 ,P < 0 .01) ,the differences in the comparison among other groups had no statistical significance (P> 0 .017) .Conclusion GADA and IA‐2A have the diagnostic value to T1DM ,GADA also has the diagnostic significance to T2DM ,GADA and ICA‐64KD have the differentiating diagnostic significance to T1DM and T2DM .
4.Clinical application of high resolution melting analysis in mutation detection of phenylulanine hydroxylase gene
Chao HE ; Ru LI ; Jianhui JIANG ; Can LIAO
Chinese Journal of Laboratory Medicine 2011;34(9):836-841
Objective To detect PAH gene mutations in classical PKU patients by HRM analysis. MethodsMutation scanning of PAH gene were performed in 17 classical PKU patients by HRM analysis ( LightScanner), covering the 13 exons and exon-intron boundaries. The HRM results were further confirmed by DNA sequencing, and the sensitivity and specificity of HRM method in PKU diagnosis were also evaluated. In addition, prenatal diagnosis was performed in two fetuses at risk for classical PKU. Results In the 17 patients, two mutations were identified in 16 patients, three mutations were identified in 1 patient.In this subject, a total of 22 different pathogenic mutations : 194V( c. 280A > G), IVS4nt-1 G > A( c. 442-1G > A), R158Q( c. 4736 > A), Q160X( c. 478C > T), W187X( c. 561G > A), E6nt-96A > G( c. 611A >G), G239D( c. 716G > A), R241 C( c. 721C > T), R243Q( c. 728G > A), G247R (c. 739G > C), G247V (c. 740G>T), R261X(c. 781C >T), PR261Q(c. 782G > A), H264R (c. 791A > G), F302fsX39 (c. 904delT), E305K( c. 913G > A), G312V( c. 935G > T), Y356X( c. 1068C > A ), V399V ( c. 1197A >T), R408Q(c. 1223G > A), T418P(c. 1252A > C) , A434D(c. 1301C > A), 3 silent mutations Q232Q (c. 696G > A), V245V(c. 735G > A), L385L(c. 1155C > G), and one single nucleotide polymorphism rs2280615 ( c. 402A > C) were identified, of which 194V ( c. 280A > G), Q160X ( c. 478C > T), H264R (c. 791A > G), G312V( c. 935G > T) and E305K ( c. 913G > A) were novel mutations identified in PAH gene. The prenatal diagnosis results of the two fetuses : one was diagnosed as normal, the other was diagnosed as a carrier. In this study, the sensitivity and specificity for mutation detection by HRM were 100%, and the HRM results were consistent with DNA sequencing results. Conclusions HRM analysis is a simple,accurate, rapid, high-throughput and low-cost genetic analysis approach. It could be applied to mutation scanning of classical PKU of PAH gene and rapid prenatal diagnosis in parents with known mutations.
5.Bond strengths of absorbable polylactic acid root canal post with three different adhe-sives
Hui PAN ; Can CHENG ; Jia HU ; He LIU ; Zhihui SUN
Journal of Peking University(Health Sciences) 2015;47(6):990-993
Objective:To find absorbable adhesives with suitable bonding properties for the absorbable polylactic acid root canal post. To test and compare the bond strengths of absorbable polylactic acid root canal post with three different adhesives. Methods:The absorbable polylactic acid root canal posts were used to restore the extracted teeth, using 3 different adhesives: cyanoacrylates, fibrin sealant and glass ionomer cement. The teeth were prepared into slices for micro-push-out test. The bond strength was statistically analyzed using ANOVA. The specimens were examined using microscope and the failure mode was divided into four categories:cohesive failure between absorbable polylactic acid root canal posts and adhesives, cohesive failure between dentin and adhesives, failure within the adhesives and failure within the absorbable polylactic acid root canal posts. Results:The bond strength of cyanoacrylates [(16. 83 ± 6. 97) MPa] and glass ionomer cement [(12. 10 ± 5. 09) MPa] were significantly higher than fibrin sealant [ ( 1 . 17 ± 0 . 50 ) MPa ] , P <0 . 001 . There was no significant difference between cyanoacrylates and glass ionomer cement (P =0. 156). In the group of cyanoacrylates, the cohesive failure between the absorbable polylactic acid root canal posts and the adhesives was 25 . 0%, the cohe-sive failure between the dentin and the adhesives was 16. 7%, the failure within the adhesives was 33. 3%, and the failure within the absorbable polylactic acid root canal posts was 25 . 0%. In the group of fibrin sealant , the cohesive failure between the absorbable polylactic acid root canal posts and the adhesives was 66 . 7%, the cohesive failure between the dentin and the adhesives was 22 . 2%, the failure within the ad-hesives was 11. 1%. In the group of glass ionomer cement, the cohesive failure between the absorbablepolylactic acid root canal posts and the adhesives was 87. 5%, the failure within the adhesives was 12. 5%. The major failure mode in fibrin sealant and glass ionomer cement was the cohesive failure between the absorbable polylactic acid root canal posts and the adhesives. No major failure modes were found in the group of cyanoacrylates. Conclusion:The bond strength of fibrin sealant is low, which cannot meet the requirement of clinical use. The bond strengths of cyanoacrylates and glass ionomer cement are suitable for clinical use. The cyanoacrylates are a kind of absorbable adhesive which has suitable bonding proper-ties for the absorbable polylactic acid root canal post.
6.Clinical Observation of Jiuxin Fumai Injection for Treatment of Syncope-Collapse Syndrome
Can LI ; Daosheng HUANG ; Jiangang YANG ; Weiguang ZHU ; Mingda HE
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
0.05);the therapeutic effect on slight syncope-collapse syndrome and septic shock is superior to the control group(P
7.A Study on Anti-EV71 Effects of Ganlu Xiaodudan in Vitro
Bichen AI ; Youshun HE ; Guorong ZHAO ; Yirong HE ; Ling LONG ; Can LI ; Chengyu LUO
Chinese Journal of Information on Traditional Chinese Medicine 2014;(11):62-65
Objective To explore anti-EV71 effects of Ganlu Xiaodudan in vitro. Methods Ribavirin was taken as control drug, with the help of cell culture to observe anti-EV71 inhibition rate of Ganlu Xiaodudan in inhibiting-virus-directly experiment, therapeutic-inhibiting-virus experiment, preventive-inhibiting-virus experiment and preventive-therapeutic-inhibiting-virus experiment. Results In inhibiting-virus-directly experiment, therapeutic-inhibiting-virus experiment and preventive-therapeutic-inhibiting-virus experiment, virus inhibition rate of Ganlu Xiaodudan was higher than ribavirin. In preventive-inhibiting-virus experiment, virus inhibition rates of Ganlu Xiaodudan and ribavirin both were almost zero. Conclusion Ganlu Xiaodudan has better antiviral effects on EV71 than ribavirin, and it can affect more than one link of multiplication of EV71.
8.Micro-plate radiobinding assay of autoantibody to glutamic acid decarboxylase
Can, HUANG ; He-lai, JIN ; Xia, WANG ; Hui, LI ; Song, ZHANG ; Zhi-guang, ZHOU
Chinese Journal of Nuclear Medicine 2008;28(5):339-343
Objective The purpose of this study was to develop a high-throughput micro-plate radiobinding assay (RBA) of glutamic acid decarboxylase antibody (GAD-Ab) and to evaluate its clinical application. Methods 35labeled GAD65 antigen was incubated with sera for 24 h on a 96-well plate, and then transferred to the Millipore plate coated with protein A, which was washed with 4℃ PBS buffer, and then counted by a liquid scintillation counter. The GAD-Ab results were expressed by WHO standard unit (U/ml). A total of 224 healthy controls, 162 patients with type 1 diabetes mellitus(T1DM) and 210 patients with newly diagnosed type 2 diabetes (T2DM) were recruited. A total of 119 TI DM and healthy cases with gradually changing GAD-Ab levels were selected to compare the consistency of micro-plate RBA with conventional radioligand assay (RLA). Blood samples were obtained from the peripheral vein and finger tip in 32 healthy controls, 35 T1DM and 24 T2DM patients, and tested with micro-plate RBA and then compared with the conventional RLA to investigate the reliability of finger tip sampling. Linear correlation,student's t-test, variance analysis and receiver operating characteristic (ROC) curve were performed using SPSS 11.5. Results (1) The optimized conditions of micro-plate RBA included 2 μl serum incubated with3 ×104 counts/min 35S-GAD for 24 h under slow vibration, antigen-antibody compounds washed 10 times by 4℃ PBS buffer, and radioactivity counted with Optiphase Supermix scintillation liquid. (2)The intra-batch CV of the micro-plate RBA was 3.8%- 10.2%, and the inter-batch CV was 5.6%- 11.9%. The linearity analysis showed a good correlation when the GAD-Ab in serum samples ranged from 40.3 to 664 U/ml and the detection limit of measurement was 3.6 U/ml. The results from Diabetes Autoantibody Standardization Program (DASP) 2005 showed that the sensitivity and specificity for GAD-Ab were 78% (39 positive among 50 new-onset T1DM) and 98% (2 positive among 100 healthy controls). The results of GAD-Ab obtained with micro-plate RBA and RLA were closely correlated (r=0.915,P<0.001) with a high concordance level of 97.5% and a Kappa value of 0.95. (3)TI DM and T2DM patients showed higher positive rates for GAD-Ab than the healthy controls(46.9% and 5.2% vs 0.89% ,X2=123.5 and 10. 1 ,P <0.001 and <0.01, respectively). (4)The consistency of GAD-Ab measurement with RBA using finger tip blood and RLA measurement using venous blood was 96.7% (r =0.946,P <0.001, Kappa value: 0.905). Conclusions The micro-plate RBA of GAD-Ab has high sensitivity, specificity and reproducibility, and can be measured with finger tip blood sampling. It might be a better alternative for clinical practice.
9.A novel microtiter plate radioimmunoassay of insulin autoantibody
Can, HUANC ; Zhang-wei, LI ; He-lai, JIN ; Xia, WANG ; Jian-ping, WANG ; Zi-guang, ZHUO
Chinese Journal of Nuclear Medicine 2009;29(1):50-54
Objective Insulin autoantibody (IAA) is known to exist in sera of type 1 diabetes mellitus (T1DM) patients and pre-T1DM individuals. The aim of this study was to establish a novel microtiter plate radioimmunoassay (RIA) for IAA and evaluate its clinical value. Methods Diluted 125Ⅰ-insulin was mixed with 5 ul serum samples in a 96-well microtiter plate and then incubated for 72 h on an orbital plate shaker (4℃). The immunocomplexes were transferred to another protein a coated Millipore plate, and then the plate was washed with Tri-Buffered Saline Tween-20 (TBT) buffer. Counts per minute (CPM) was measured with liquid scintillation and luminescence counter. The positive cut-off point of IAA index was defined as ≥0.06 based on the 99-percentile of the distribution in 317 healthy individuals. The specificity and sensitivity of the assay were calculated from the samples provided by the fourth Diabetes Autoantibodies Standardization Program (DASP 2005). The IAA levels were determined in 71 T1 DM and 551 newly diagnosed type 2 diabetes (T2DM) patients, and 317 healthy controls. The t test, non-parametric test, x2 test and linear correlation analysis were performed on the data using SPSS 11.5 software. The concordance rate was estimated with Kappa value. Results (1) The optimized testing condition was described as 2×104 CPM of 125Ⅰ-insulin, 5 ul serum sample and slowly horizontal shaking for 72 h. (2) The intra-assay CV was 4.8%-8.9% and inter-assay CV was 6.4%-10.5%. Based on DASP 2005 samples, the specificity and sensitivity of the assay were 97% (97/100) and 50% (25/50), respectively. Ninety-six serum samples with different IAA levels were selected and tested to compare between our new method and a domestic IAA RIA kit. The results showed that the IAA indices from the two methods were positively correlated (r= 0.678, P<0.001). The concordance rate was 72.9 %(Kappa value=0.402). There were 25 samples with discordant results, which were positive for IAA titer using the corresponding microtiter plate RIA but negative using the novel RIA kit. (3) In TIDM group the positive rate of IAA was 19.7% (16/71), higher than the healthy controls (0.9%, x2=54.36, P<0.001). The subgroup of T1DM children (with 0-9 years) showed the highest IAA positive rate (55.6% ,x2=4.85, P<0.05). In T2DM group the frequency of IAA was 1.5% (8/551), which had no significant difference comparing with that of healthy controls (x2= 0.95, P >0.05). Conclusions Our proposed microtiter plate RIA method for IAA is highly sensitive and specific, likely to be feasible for clinical application. The frequency of IAA is high in children with T1DM.
10.Treatment compliance and health needs of rural patients with peptic ulcer.
Journal of Central South University(Medical Sciences) 2006;31(6):960-961
OBJECTIVE:
To investigate the treatment compliance and basic health needs of rural patients with gastric ulcer.
METHODS:
One hundred and sixteen patients with gastric ulcer were measured with treatment compliance questionnaire. The questionnaire contained 3 aspects: chemical therapy, regular callback, and improvement in life style, and had another part of questions which were designed to investigate the basic health needs of the patients.
RESULTS:
The patient compliance rate in the aspect of improvement in life style was 4.3% (n=5). Both of the counterparts in the other 2 aspects were 7.8% (n=9). The main correlative factor with treatment compliance of the investigated patients was economic income. There were 105 patients (90.5%) needing health consultation, 98 patients (84.5%) needing diet instruction and 93 patients (80.2%) needing regular physical examination among the 116 patients investigated.
CONCLUSION
The treatment compliance rate of rural patients with gastric ulcer was very low. It is necessary to emphasize health education.
Adolescent
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Adult
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Aged
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Female
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Health Services Needs and Demand
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Humans
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Male
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Middle Aged
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Patient Compliance
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statistics & numerical data
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Peptic Ulcer
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Rural Health Services
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Surveys and Questionnaires
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Young Adult