2.Optimization of estimating 131I effective half-life in patients with Graves' disease
Bing YAN ; Jinxiu HE ; Yanwu DONG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2016;36(6):525-528
Objective To explore optimized method of estimating 131I effective half-life(EHL) in patients with Graves' disease(GD).Methods The EHL was obtained by measuring thyroid radioactive iodine uptake (RAIU) of 126 patients (32 males,94 females,average age (38.47± 11.49) years) with GD at 4,24,48,96,120,144,168,192 and 216 h.Two-sample t test,bivariate correlation analysis and curve estimation were used for statistical analysis.Results The EHL of 126 patients was 0.5-7.5 (4.70±1.46) d.The EHL was 3.0-7.5(5.25±1.01) d and 0.5-6.0(3.24±1.52) d in group A (94 patients,without advanced peak of RAIU) and group B (32 patients,with advanced peak of RAIU),respectively,and the difference between the 2 groups was significant (t =8.499,P<0.01).The EHL had no significant correlation with RAIU4h/RAIU24h(r=-0.177,P>0.05) in group A,while it had negative correlation with RAIU4h/RAIU24h in group B (r =-0.724,P<0.01).In group A,the EHL of patients with RAIU24h/RAIU48h >100% was 3.0-7.5 (5.11 ±0.98) d,the EHL of patients with RAIU24h/RAIU48h ≤ 100% was 4.0-7.0(5.91±0.94) d (t=3.141,P<0.01).In group B,when RAIU4h/RAIU24h+RAIU24h/RAIU48h was used as the independent variable in S curve model to estimate the EHL,the result was the best (R2=0.930,F=397.22,both P<0.01,b0 =-3.038 0,b1 =9.659 4).Conclusions In order to optimally estimate EHL,patients should be grouped according to 131I turnover.In patients with advanced peak of RAIU,the EHL should be calculated by using formula of (RAIU4h/RAIU24h +RAIU24h/RAIU48h).If no advanced peak of RAIU exists,patients should be further divided according to RAIU24h/RAIU48h > 100% or RAIU24h/RAIU48h ≤100%,and the EHL mean value of each group is taken as the estimated EHL.
3.A new method of calibration and positioning in quantitative analysis of multicomponents by single marker.
Bing HE ; Shiyan YANG ; Yan ZHANG
Acta Pharmaceutica Sinica 2012;47(12):1653-9
This paper aims to establish a new method of calibration and positioning in quantitative analysis of multicomponents by single marker (QAMS), using Shuanghuanglian oral liquid as the research object. Establishing relative correction factors with reference chlorogenic acid to other 11 active components (neochlorogenic acid, cryptochlorogenic acid, cafferic acid, forsythoside A, scutellarin, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C, baicalin and phillyrin wogonoside) in Shuanghuanglian oral liquid by 3 correction methods (multipoint correction, slope correction and quantitative factor correction). At the same time chromatographic peak was positioned by linear regression method. Only one standard uas used to determine the content of 12 components in Shuanghuanglian oral liquid, in stead of needing too many reference substance in quality control. The results showed that within the linear ranges, no significant differences were found in the quantitative results of 12 active constituents in 3 batches of Shuanghuanglian oral liquid determined by 3 correction methods and external standard method (ESM) or standard curve method (SCM). And this method is simpler and quicker than literature methods. The results were accurate and reliable, and had good reproducibility. While the positioning chromatographic peaks by linear regression method was more accurate than relative retention time in literature. The slope and the quantitative factor correction controlling the quality of Chinese traditional medicine is feasible and accurate.
4.Eosinophilic cystitis in children: report of one case.
Guo-hou HE ; Hai YOU ; Bing YAN
Chinese Journal of Pediatrics 2010;48(11):865-865
Child
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Cystitis
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Eosinophils
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Humans
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Male
5.Effect of Electroacupuncture on Learning and Memory in Vascular Dementia Rats and Its Mechanism
Bing YAN ; Nenggui XU ; Chunzhi TANG ; Lilei HE ; Ying SHAO ;
Journal of Guangzhou University of Traditional Chinese Medicine 2001;0(03):-
【Objective】 To observe the effect of electroacupuncture(EA) onlearning and memoryin vascular dementia (VD) rats andto explore its possible therapeutic mechanism.【Methods】Fifty specific pathogenfree(SPF) adult rats were randomizedintofour groups.Except the 8 rats in the pseudo-operation group(group A),the other 42 rats were induced cerebral ischemia by four-vessel occlusion method.Then the model rats were randomized into model group (group B),EAgroup(group C) and nimotop group(group D).Groups Aand B were fed with the same forage and received no medication.Group Creceived EAonthe acupoints of Baihui,Geshu,Pishu and Shenshu,and EAwas set in continuous wave with the frequency being 150Hz,once per day and lasting 15 consecutive days.Group Dreceived nimotop 12mg/kg,qd,for 15 consecutive days.After 15-day treatment,the learning and memory abilities of the rats were observed by Morris water test,the plasma carbon monoxide(CO) level was detected by double-wavelength spectrophotometer,and brain nitric oxide(NO) content was examined byspectrophotometry-colorimetry.【Results】The model rats had obvious disorders of learningand memory,their escapelatency was prolonged,thetimes swimmingacross the platforminthe original quadrant did not differ fromthose inthe other three quadrants,and plasma COand cerebral NOlevels were obviouslyincreased.In EAgroup,escapelatency was shortened,thetimes swimmingacrossthe platform inthe original quadrant were more thanthose inthe other three quadrants,and plasma COand cerebral NOlevels were obviously decreased(P
6.Identification and Distribution of Hydantoinase-and Carbamoylase-producing Bacteria
Yan-Zhen MEI ; Bing-Fang HE ; Ping-Kai OUYANG ;
Microbiology 1992;0(06):-
The isolated 24 strains-producing hydantoinase & carbamoylase were first identified by Biolog microbial identification system and 16S rDNA sequence analysis.The results suggested that the hydantoinase & carbamoyalse-producing bacteria belonged to Bacillus,Geobacillus,Brevibacillus,Aneurinibacillus,Microbacterium,Pseudomonas,Kurthia and Empedobacter,and so on.Especially,Kurthia and Empedobacter were new hydantoinase & carbamoylase-producing genera.Furthuremore,it was found that D-hydatoinase & carbamoyalse-producing bacteria belonged to Pseudomonas and Agrobacterium,while most of L-hydantoinase & carbamoyalse-producing bacterial belonged to Bacillus,Geobacillus and Microbacterium.The distribution feature of D-hydantoinase & carbamoyalse-producing bacteria and L-hydantoinase & carbamoyalse-producing bacteria showed some genera tendency.This research work will provide the biomaterial of different hydantoinase and carbamoylase and contribute to study the structure and function,molecular evolution of the two enzymes.
7.Influence of acupuncture on parturition process
Yanping ZHONG ; Honglian YAN ; Shuzhen HE ; Bing LIN ; Xiaodan LUO
Chinese Journal of Primary Medicine and Pharmacy 2013;20(10):1446-1447
Objective To observe the influence of acupuncture treatment on parturition process.Methods 545 pregnant women delivered in our hospital were selected,excluding those with cesarean section indication.On voluntary principle and randomized principle,primipara aged from 22 to 30 who agreed with natural labor were divided into two groups:observation group and control group.Pregnant women in observation group were received acupuncture treatment during latent phase.The following indexes of the two groups were recorded and compared:labor time of the first stage and the second stage,the case for inertia of uterus,cesarean sections,postpartum hemorrhage amount and Apgar score of new-born.Results The labor time of the first stage and the second stage of the control group were (178.55 ± 56.87) min and (130.70 ± 77.22) min,and which of the observation group were (53.87 ±22.33) min and (33.25 ± 15.55) min,there was significant differenec between the two groups(t =3.97,4.11,all P <0.05).The differences in the pilot failed to cesarean section rate(14.2% and 13.6%),postpartum hemorrhage and the perinatal outcome were not significant between the two groups.Conclusion Acupuncture and moxibustion can accelerate labor.
9.Comparison of autophagy related proteins expression between clear cell renal cell carcinoma and adjacent tissue
Bing YAN ; Yali REN ; Qun HE ; Zhijun XI
Chinese Journal of Urology 2013;34(11):823-826
Objective To investigate the autophagy capacity in clear cell renal cell carcinoma tissue compared with adjacent normal tissue.Methods Sixty-nine pairs of samples from human clear cell renal cell carcinoma tissues and relatively healthy renal tissues adjacent to the tumor were collected during surgical resection.The expressions of proteins that were participating in the regulation and execution of autophagy were detected by immunohistochemisty.Electron-microscopy was also carried out for the morphometrical analysis.Results The protein expression of p-mTOR (P =0.004),P62 (P =0.000) and ULK1 (P =0.000) were up-regulated in the carcinoma tissue,while the expression of Beclin1 (P=0.000),LC3 (P =0.000) and ATG7 (P =0.000) were down-regulated,and the expression of ATG5 (P =0.349) had no signif-icant difference compared with adjacent normal tissue.Morphometrical analysis showed that the basal autophagic activity (measured by the presence of autophagy vacuole compartment) was remarkably down-regulated in carcinoma tissue,compared with adjacent normal tissue.The expression level of mTOR was correlated with P62,LC3 and ATG7,but results showed no correlation between mTOR and Beclin 1.Conclusion Our studies show a relatively reduced autophagy capacity in clear cell renal cell carcinoma,which is regulated by multiple autophagy-related proteins such as mTOR,Beclin 1 and LC3.
10.Hemodynamic Parameter Changes in Pulmonary Arterial Hypertension Treated by Transplantation of Bone Marrow Mesenchymal Stem Cells in Experimental Rats
zhi-xu, HE ; hao-wen, WANG ; feng, SHANG ; hu, YAN ; yan, YANG ; dong-bing, CUI
Journal of Applied Clinical Pediatrics 1986;0(01):-
Objective To explore hemodynamic parameter changes in pulmonary arterial hypertension(PAH)treated by transplantation of bone marrow mesenchymal stem cells(MMSCs)in the experimental rats.Methods MMSCs cells were collected from bone marrow of Sprague-Dawleye(SD)rat's femoral and tibial bones,cultured and passaged in vitro,then stained by Hoechst 33342 fluorescence dye stuff.Ninety healthy male SD rats were randomly divided into 3 groups(n=30):normal control group(group N),MMSCs transplanted group(group M),PAH model group(group H).The rats in the two latter groups were given a single subcutaneous crotaline(50 mg/kg)to establish the model of PAH.The rats of group N were injected respectively a single subcutaneous 9 g/L saline water(6 mL/kg).After 21 days,5?109 L-1 MMSCs cultured in 1 mL phosphate-buffered saline were infused into the rats respectively in group M by sublingual vein and 1 mL L-DMEM was given in group H.The indexalso of right ventricle systolic pressure(RVSP),right ventricle hypertrophy index,arterial blood gas analysis and the changes of small pulmonary blood vessel were observed after 28 days.Results The administration of MMSCs 28 days after PAH nearly completely prevented the increase in RVSP with PAH alone [(32.20?2.32)mmHg vs(48.30?1.56)mmHg P