1.Liquiritin improves depressive behavior in rats with post-stroke depression by reducing apoptosis of amygdala cells
Fengfeng XU ; Da XU ; Hanxiao ZHU ; Riwei OUYANG ; Ning RONG ; Changqin XU ; Yun LI
International Journal of Cerebrovascular Diseases 2021;29(4):277-284
Objective:To investigate the effect of liquiritin on the apoptosis of amygdala cell and the expression of apoptosis-related factors Bax and Bcl-2 protein in rats with post-stroke depression (PSD).Methods:Sixty rats were randomly divided into normal control group, stroke group, PSD group, citalopram group, liquiritin group, and normal saline control group ( n=10 in each group). The middle cerebral artery was occluded with a suture method to induce focal cerebral ischemia, and the PSD model was established by chronic and unpredictable mild stress stimulation and orphanism. At the same time every week after the model was made, the weight of rats in each group was measured and the depression behavior was evaluated, including sucrose water test and open field test. At 6 weeks after the model was made, TUNEL staining was used to detect the apoptosis of amygdala cell, immunofluorescence staining was used to detect the expression of Bax and Bcl-2 in the amygdala, and Western blot analysis was used to detect the protein expression of Bax and Bcl-2 in the amygdala. Results:Compared with the liquiritin group, citalopram group and normal control group, the body weight and sucrose solution preference of rats in the stroke group, PSD group and normal saline control group were decreased, and the horizontal and vertical movements in open field test were decreased; the differences were statistically significant (all P<0.01). TUNEL staining results showed that compared with the liquiritin group, citalopram group and normal control group, the number of apoptotic cells was significantly increased in the stroke group, PSD group, and normal saline control group; the difference was statistically significant (all P<0.01). The results of immunofluorescence staining showed that compared with the liquiritin group, citalopram group and normal control group, the number of bcl-2 immunoreactive cells in amygdala of the stroke group, PSD group and normal saline control group was significantly decreased, while the number of Bax immunoreactive cells was significantly increased; the difference was statistically significant (all P<0.01). Western blot analysis showed that compared with the liquiritin group and citalopram group, the expression of bcl 2 protein in amygdala of the stroke group, PSD group and normal saline control group was significantly decreased, while the expression of Bax protein was significantly increased; the difference was statistically significant (all P<0.01). Conclusion:Liquiritin can alleviate the symptoms of PSD, and its mechanism may be related to inhibiting the apoptosis of amygdala cells and regulating the expression of apoptosis-related factors.
2.Effects of brain-derived neurotrophic factor precursor on behavior and apoptosis signal pathway in prefrontal cortex of rats with post-stroke depression
Ning RONG ; Fengfeng XU ; Changqin XU ; Da XU ; Xiuyun WANG ; Yun LI
Chinese Journal of Behavioral Medicine and Brain Science 2021;30(2):112-117
Objective:To observe the changes of protein expression of apoptosis signal pathway in prefrontal cortex of rats with post-stroke depression(PSD) after lateral ventricle injected of brain-derived neurotrophic factor precursor(proBDNF).Methods:Among 55 healthy adult female SD rats, 25 rats were randomly selected as PSD group, and the other 30 rats were randomly divided into normal group ( n=10), depression group ( n=10) and stroke group ( n=10). The middle cerebral artery occlusion(MCAO) model was established by thread occlusion in the stroke group, the chronic stress depression model in the depression group was established by the combination of chronic unpredictable mild stress(CUMS) and the solitary feeding method.And the rats in the PSD group were established MCAO model first, then they were received CUMS stress and solitary rearing one week later so as to establish PSD model.Two weeks after the establishment of the model, 15 rats in PSD group were randomly divided into proBDNF group, rats in tPA group and NS control group.One week after buried tube of lateral ventricle, rats in tPA and proBDNF were injected into the lateral ventricle for one week.The protein expressions of c-Jun N-terminal kinase(JNK), p-JNK, p53, p-p53 and Bax in prefrontal cortex of rats in each group were detected by Western blot at the 4th and 8th week after modeling.SPSS 17.0 software was used for data analysis, one-way ANOVA was used for comparison between groups, and SNK- q was used for pairwise comparison. Results:The expressions of p-p53, p53, p-JNK, JNK and Bax in prefrontal cortex of normal group, depression group, stroke group and PSD group were significantly different at the end of 4th and 8th week after MCAO modeling ( F=3.426-90.355, all P<0.05). Post-hoc analysis showed that, compared with the normal group, the expressions of p-JNK (0.378±0.042) and Bax (0.478±0.054) in the prefrontal cortex of PSD rats increased significantly at the end of the 4th week(both P<0.05), and the expressions of p-JNK(0.411±0.056), p-p53 (0.286±0.083) and Bax (0.471±0.008) in the prefrontal cortex of PSD group increased significantly at the end of the 8th week(all P<0.05). After lateral ventricle injection of proBDNF, there were significant differences in the expression of p-p53, p53, p-JNK, JNK and Bax among proBDNF group, tPA group and NS group ( F=16.915-287.039, all P<0.01). Post-hoc analysis showed that, compared with NS group, the expressions of p-JNK (0.35±0.01)and p-p53 (0.31±0.01)in prefrontal cortex of proBDNF group increased significantly(both P<0.05). After lateral ventricle injection of proBDNF, there were significant differences in body weight, sucrose preference rate, horizontal movement distance among proBDNF group, tPA group and NS group ( F=18.741-76.305, all P<0.01), and compared with tPA group and NS group, behavioral indexes of proBDNF group (body weight (224.36±3.23) g, sucrose preference rate (69.83±1.72)%, horizontal movement distance (57.93±2.09) blocks, vertical movement distance (19.79±1.81)) decreased significantly(all P<0.05). Conclusion:The proBDNF promotes the activation of apoptosis signal pathway in the rats with PSD.
3.Moxifloxacin-based triple therapy combined with rebamipide for Helicobacter pylori eradication in type 2 diabetic patients
Yanguang XU ; Yue GUAN ; Xinli WANG ; Da PAN ; Yun XIE ; Shaozhen WANG
Chinese Journal of General Practitioners 2012;(11):840-844
Objective To evaluate the efficacy of moxifloxacin-based triple therapy combined with rebamipide for Helicobacter pylori (Hp) eradication in type 2 diabetic patients.Methods Two-hundred age and sex matched type 2 diabetic patients with Hp infection and accompanied by gastrointestinal symptoms were assigned into rebamipide group (n =100) and placebo group (n =100).Both groups received moxifloxacin-based triple therapy for 10 d to eradicate Hp.Rebamipide was administrated in rebamipide group and placebo was administrated in placebo group for 30 d.All patients proceeded 14C-urea breath test (14C-UBT) hefore and 7-8 weeks after eradication therapy.The blood sugar indices,gastrointestinal symptom scores and Hp eradication rates were measured and compared.Those who had gained successful Hp eradication in both groups proceeded 14 C-UBT again 12 months after eradication therapy,and the re-infection rates of both groups were compared.Results There were no significant differences in the average fasting glucose,postprandial glucose and HbAlc levels between the rebamipide group and the placebo group before and after therapy (P > 0.05),the gastrointestinal symptoms of the rebamipide group were improved more markedly than those of the placebo group after therapy (Rome Ⅲ Criteria,2.1 ± 0.9 vs.4.4 ± 0.7,P < 0.01).The Hp eradication rate with both intention-to-treat (ITT) and per protocol (PP) analysis of the rebamipide group were higher than that of the placebo group [86.0% (86/100) vs.73.0% (73/100),P < 0.05 and 92.5% (86/93) vs.76.8% (73/95),P < 0.01].The re-infection rates with both ITT and PP analysis of those who had successful eradication in rebamipide group were lower than that in placebo group [19.8% (17/86) vs.35.6% (26/73),P<0.05and20.5% (17/83) vs.36.6% (26/71),P<0.05].Conclusions Moxifloxacin-based triple therapy combined with rebamipide has a more beneficial effect on Hp related symptoms,a higher Hp eradication rate and a lower Hp re-infection rate for type 2 diabetic patients.
4.Research and development of a clinical laboratory information system.
Da-gan YANG ; Gen-yun XU ; Yang-jun ZHU
Chinese Journal of Medical Instrumentation 2005;29(1):23-26
A clinical laboratory information system consists of two parts--the information system and the management system. Its development is based on scientific and rational lab-workflow, consulting the international standard HL7 Protocol, and combined with barcode technique and instrument communication. The information system mainly manages the data which come from the whole lab testing process while the management system is dominating the lab office work and management decisions.
Automatic Data Processing
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Clinical Laboratory Information Systems
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standards
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Computer Communication Networks
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Databases as Topic
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Management Information Systems
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Software Design
5.One case of rare tracheobronchial foreign body (fusiform magnet) successfully removed through bronchoscopy in a child.
Keng-jian KE ; Da-bo LIU ; Zhen-yun HUANG ; Jia-jian XU
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2013;48(10):848-848
Bronchi
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Bronchoscopy
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Child
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Foreign Bodies
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surgery
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Humans
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Magnets
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Male
6.Growth and developmental rhythm of Scrophularia ningpoensisin southwest middle mountain area of China.
Xue ZHANG ; Da-Xia CHEN ; Long-Yun LI ; Xian YANG ; Xu-Hong SONG
China Journal of Chinese Materia Medica 2014;39(20):3915-3921
Plant samples were collected and investigated periodically. According to the growth of different parts and the characteristics of dry substance accumulation of Scrophularia ningpoensis, the development of S. ningpoensis could be divided into four stages: seeding stage, stem and leaf growth stage, expanding period of root tubers, and dry substance accumulation stage of root tuber. Leaf numbers of S. ningpoensis grew gradually from one at first to 370 at the final stage, main stem leaf were 50 pieces. Leaf size increasesed with the fastest growth at the stem and leaf growth stage, average daily increase amount was 225 cm2. By the middle of August, leaf size reached to 16,270 cm2. Leaf area indexrose sharply in the seeding stage, and remained above 8 among stem and leaf growth stage and expanding period of root tubers, and rapidly reduced to zero in the stage of dry substance accumulation of root tuber. Leaf area ratio has a tendency of obvious dropping. The net assimilation rate had a small change ranges, two small peak were seeding stage and dry substance accumulation of root tuber. The value of specific leaf area was higher in seeding stage, and in the earlier stage of dry substance accumulation of root tuber. Relative growth rate changed with large ranges, higher in seeding stage, rapid decrease in stem and leaf growth stage, rose in expanding period of root tubers, and declined again in the stage of dry substance accumulation of root tuber. Crop growth rate was higher in the first and last stages, and smaller in interim stage. The growth parameters of S. ningpoensis such as relative growth rate, net assimilation rate, leaf area index, leaf area ratio, specific leaf area, crop growth rate changed along with the growth. The rule of dry matter accumulation was as follows: the dry matter increased slowly during the seeding stage and speeded up in the middle and late stages, and in dry substance accumulation of root tuber increased slower, the growth of dry matter all appeared an "S" curve, and accorded with logistic equation. Cultivation technologies of S. ningpoensis and the relevant management methods could be established according to the growth of different parts of S. ningpoensis and the characteristics of dry substance accumulation in different stage.
China
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Conservation of Natural Resources
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Plant Leaves
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growth & development
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Plant Roots
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growth & development
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Plant Stems
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growth & development
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Plant Tubers
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growth & development
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Scrophularia
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growth & development
7.Bailing Capsule in Preventing Epithelial- Mesenchymal Transition in Rats with Tubulointerstitial Fibrosis
De-an, ZHAO ; Da-sheng, YANG ; Ling-yun, BI ; Hui-qin, XU ; Ying, ZHAO ; Xin-de, CHEN
Journal of Applied Clinical Pediatrics 2005;20(9):939-942
Objective To explore the effect of Bailing capsule on epithelial-mesenchymal transition( EMT) in rats with adenine-in-duced tubulointerstitial fibrosis. Methods Tubulointerstitial fibrosis animal models were established and SD rats were divided into mo-del group ( n = 30), treatment group ( n = 30) and control group( n = 30), randomly. Experimental rats were harvested at 7 w, 12 w,17 w after onset of experiment and functional evaluations were performed. Histology, immunohistology were examined to investigateboth histolopathology changes and the expression of bone morphogenic protein-7 (BMP-7), transforming growth factor-β1 (TGF-β1 )and a-smooth muscle actin (α-SMA) in kidneys at three time points mentioned above, respectively. Results Compared with controlgroup, 24 h urinary protein in model group lost increasingly and significantly difference appeared at three time points relative to controlgroup ( P < 0.01 ). Urinary NAG in model group was markedly higher than that in control group from 7 w after onset (P < 0.01 ) andwas increasingly raised at 12 w and 17 w (P<0.01). The value of blood BUN and Cr in model group increased at 7 w (P>0.05) rel-ative to control group. There was significant difference at 12 w and 17.w (P < 0.01 ). Histologically, kidneys in model group, at 7 w,exhibited tubular casts and gently tubular dilation, granuloma in cortex, mononuclear cells infiltration in tubulointerstitial areas, andmild interstitial fibrosis. At 12 w, the degree of tubular injury and tubulointerstitial fibrosis gradually aggravated. Up to 17 w, diffusetubular dilation or atrophy was observed and focal tubules disappear. Diffuse interstitial fibrosis was exhibited. In normal kidneys, im-munohistochemistry suggested that the light expression of BMP-7 was detected in proximal renal tubular epithelial cells and marked ex-pression was identified in distal tubule, collecting duct, and renal tubular epithelial in junction area between cortex and medulla. How-ever, the expression of BMP-7 in kidneys of model group significantly decreased with increasing tubulointerstitial fibrosis and was nega-tive correlation with the expression of TGF-β1(r = -0. 981 P<0.01) and α-SMA (r= -0.975 P<0.01). Bailing capsule ad-ministration protected the expression of BMP-7 and reduced TGF-β1 and α-SMA expression before 12 w(P< 0.01 ). Conclusions Ourstudy shows an anti-fibrotic reno-protective function of Bailing capsule in rats with tubulointerstitial fibrosis via prevention of epithelial-mesenchymal transition at early stage. However, the beneficial effect lost with increasing tubulointerstitial fibrosis.
8.Bailing Capsule in Preventing Epithelial -Mesenchymal Transitionin Rats with Tubulointerstitial Fibrosis
de-an, ZHAO ; da-sheng, YANG ; ling-yun, BI ; hui-qin, XU ; ying, ZHAO ; xin-de, CHEN
Journal of Applied Clinical Pediatrics 2004;0(09):-
Objective To explorethe effect of Bailingcapsule on epithelial-mesenchymal transition(EMT) inrats withadenine-in-duced tubulointerstitial fibrosis .Methods Tubulointerstitial fibrosis ani mal models were established and SDrats were dividedinto mo-del group (n=30) ,treatment group (n=30) andcontrol group(n=30) ,randomly .Experi mental rats were harvested at 7 w,12 w,17 wafter onset of experi ment and functional evaluations were performed. Histology ,i mmunohistology were examined to investigateboth histolopathology changes and the expression of bone morphogenic protein-7 (BMP-7) ,transforming growth factor-?1(TGF-?1)and a-smooth muscle actin (?-SMA) in kidneys at three ti me points mentioned above ,respectively .Results Compared with controlgroup ,24 h urinary proteinin model grouplost increasingly and significantly difference appeared at three ti me points relative to controlgroup(P0 .05) rel-ative to control group.There was significant difference at 12 wand 17 w(P
9.Analyses of Pont Index of dental crowding patients and normal occlusion people.
Yan-hua XU ; Yun XU ; Bing YU ; Da-jiang HAN
West China Journal of Stomatology 2005;23(3):229-250
OBJECTIVEThe research aimed to analyze the significance of Pont Index in the dental crowding.
METHODSRespectively selected 91 normal occlusion persons and 101 dental crowding patients, measured every item of Pont Index of these two sample groups, and compared the results.
RESULTSThe premolar index and molar index of dental crowding patients were obviously bigger than that of normal occlusion, and there was apparent significant difference. There was no significant gender difference of Pont Index either in normal occlusion or dental crowding patients. Whereas there was significant gender difference of premolar arch width and molar arch width in normal occlusion.
CONCLUSIONThe occurrence of dental crowding is clearly related to Pont Index.
Bicuspid ; Cephalometry ; Dental Arch ; Dental Occlusion ; Female ; Humans ; Male ; Malocclusion ; Molar
10.Application of continuous blood purification in critically ill children.
Ying ZHU ; Yang DONG ; Da-Liang XU ; Jia-Yun JIANG ; Yuan XU
Chinese Journal of Contemporary Pediatrics 2012;14(2):147-149
Adolescent
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Anticoagulants
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therapeutic use
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Body Temperature
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Child
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Child, Preschool
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Critical Illness
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therapy
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Female
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Hemodynamics
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Hemofiltration
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Humans
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Infant
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Male