1.The Study on the Change of RI Value and the Relationship Between HA to Ocular Blood Flow in Posthepatitis Cirrhosis by CDFI
Guozhen YAN ; Bingheng ZHANG ; Xiaolan ZHAO
Journal of Practical Radiology 1992;0(11):-
Objective To study the RI value in HA to ocular blood flow in posthepatitis cirrhosis by CDFI.Methods The RI value of HA,OA,PCA,CRA in 32 normal person,102 posthepatitis cirhosis patients were studied by CDFI(U.S.A.Sequoia 512).Results The value of RI between HA to OA,PCA and CRA was 0.88,0.88,0.93 respectively.Conclusion A direct relationship is found between RI value of HA to ocular vascular,especially in HA to CRA.
2.A COMBINATION PROCESS OF STERILIZING,DEPLUG AND FLOOD-INCREASING PROCESS WITH SODIUM HYPOCHLORITE
Xiuyuan WANG ; Guozhen LIU ; Yanfen XUE ; Ling ZHAO ;
Microbiology 1992;0(06):-
A new combination process of sterilizing, deplug and waterflood-increasing with sodium hypochlorite in waterflooding horizons has been developed. Its applicability was certified by 4 treatments of injection wells. After treatments the water-intake capacity of injection wells was increased, the pressure at well heat was decreased, and the average duration of stability wster injection was 307 days.
3.A study on the relationship of oncosis and MVD in colorectal carcinoma
Xiangyang LI ; Jingjing SENG ; Gaofeng ZHAO ; Xiefu ZHANG ; Guozhen ZENG ;
Chinese Journal of General Surgery 2000;0(11):-
Objective To evaluate the relationship of oncosis and the expression of microvessel density (MVD) in colorectal carcinoma and its clinical significance Methods The expression of MVD and oncosis were detected by immunohistochemical method and transmission electron microscope in 64 cases of colorectal carcinoma Results Oncosis existed in colorectal carcinoma Oncosis index (OI) in tissues of colorectal carcinoma decreased with the decrease of differentiation grades ( F=8 590?2, P
4.Left Ventricular Twist in Patients with Atrial Septal Defect by Speckle Tracking Imaging
Mengxuan WANG ; Guozhen CHEN ; Yuqi ZHANG ; Lanping WU ; Chun ZHAO
Chinese Journal of Medical Imaging 2017;25(7):516-519,524
Purpose To evaluate features of the left ventricular twist in patients with atrial septal defect (ASD) using speckle tracking imaging (STI) in order to guide clinical application.Materials and Methods Fifty-eight patients with ASD confirmed by ardiac ultrasound in Shanghai Children's Medical Center from October 2015 to January 2016 were enrolled in this study as case group,which were further divided into group ASD-A with 30 cases and group ASD-B with 28 cases according to the volume of right ventricular.The volume of right ventricular was significantly increased in the group ASD-A,but the volume of right ventricular was not significantly increased in the group ASD-B.At the same time,30 normal children with matched age and sex were chosen as control group.The parameters of left ventricular twist motion in each group were measured and compared by using STI.Results In group ASD-A,The basal and apical part of 6 children rotated counterclockwise.Compared with those in the control group,the basal rotation angle and apical rotation angle of left ventricular in group ASD-A were significantly higher (P<0.01),and the peak twist and torison of left ventricular in group ASD-A were also higher (P<0.05).Compared with those in the control group,only the apical rotation angle in group ASD-B was higher (P<0.05),but the rest parameters of the left ventricular twist motion in group ASD-B were not statistically significantly higher (P>0.05).Conclusion The significant increase in the volume of right heart load in ASD impacts on the basal and apical rotation of left ventricular.
5.Protective effect of basic fibroblast growth factor on renal tubular epithelial cell toxicity induced by gentamicin
Rongshi HUANG ; Juen HUANG ; Yanhui CEN ; Guozhen HE ; Feilan ZHAO ; Rong FAN
Chinese Journal of Tissue Engineering Research 2010;14(2):240-244
BACKGROUND: In vivo experiments have confirmed that fibroblast growth factor can effectively protect gentamicin-induced renal tubular epithelial cell injury, but the effect on the in vitro cultured cells is still rare. OBJECTIVE: To explore the mechanisms of basic fibroblast growth factor (bFGF) at different concentrations on preventing nephrotoxity mediated by genamicin on the primarily cultivated renal tubular epithelial cell models. METHODS: By use of enzyme and mesh screening, renal tubular epithelial cells were isolated from Kunming mice and purified, adjusting the cell concentration of 1×10~8/L, then cell suspension was moved to a 96-well culture plate and divided into different groups for culture: blank control group: normal culture; gentamicin group: 10, 30, 50 μL/hola (ie, 400, 1 200, 2 000 U/holes)arerecorded as G1, G2, G3; bFGF group: 20, 50, 80 μL/hole (ie, 90,225, 360 ng/hole) are recorded as B1, B2, B3; gentamicin plus bFGF intervention group: after adding bFGF 12 hours, then added gentamicin 12 hours, assigned into 9 dose subgroups, namely, G1B1, G1B2, G1B3, G2B1, G2B2, G2B3, G3B1, G3B2, G3B3, each subgroup contained four-hole complex. Cell morphology and quantity was observed. RESULTS AND CONCLUSION: Gentamicin showed a dose-dependent effect on the renal tubular epithelial cell injury, epithelial cells in the medium and high concentration groups exhibited shrinkage, rounded, swelling, poor adhesion, severely damaged cytoplasm and structural disorder. In the low concentration group, the number change of cells was not obvious, and fibroblasts began to appear; In the bFGF groups, cells were full, exhibited strong refraction, the cell number increased significantly, these manifestations were significant in 50 μL/hole concentration, and there was no significant difference compared with 80 μL/hore concentration; in case of gentamicin plus bFGF intervention, cells with low concentrations of gentamicin had no obvious damage to cells, which increased, the damaged cells collapse was reduced in the group of low concentration of gentamicin, cell shrinkage and poor adhesion were slightly relieved, high concentrations of bFGF intervention could yield to good cell morphology, but high concentrations of gentamicin caused cell swelling and necrosis of injury, which could not be improved by any concentrations of bFGF intervention. 50 μL/hole bFGF has antagonistic effect on the nephrotoxicity mediated by medium and low concentrations of gentamicin, but has no protection on high concentration of gentamicin-induced nephrotoxicity.
6.Efficacy analysis of infliximab treatment in inducing and maintaining deep remission in 26 patients with moderate to severe Crohn's disease
Xinying WANG ; Zhao CHEN ; Guozhen WANG ; Cheng XIANG ; Chen QIU ; Jieqiong ZHOU ; Bo JIANG
Chinese Journal of Digestion 2014;34(12):811-816
Objective To explore the efficacy and safety of infliximab (IFX) treatment in inducing and maintaining deep remission (DR) in patients with moderate to severe Crohn's disease (CD).Methods From February 2012 to April 2014,the clinical data of 26 patients with moderate to severe CD received IFX treatment were retrospectively analyzed.Laboratory indexes (erythrocyte sedimentation rate (ESR),C-reactive protein (CRP),albumin),Crohn's disease activity index (CDAI),Crohn's disease simplified endoscopic score (SES-CD),rate of DR and side effects were observed before treatment,at week 14 and week 30.The t test was performed for normal distribution measurement data comparison between two groups.Wilcoxon signed rank test was performed for non normal distribution measurement data comparison between two groups.Chi square test and Fisher exact probability method were used for rate comparison.Results In 26 patients with CD,at week 14,the CDAI significantly decreased compared with that before treatment (225.0(124.0,265.0) vs 80.0(67.0,124.7),Z=-4.265,P<0.01); ESR and CRP levels also significantly decreased while body mass index (BMI) and albumin levels increased.The rate of clinical remission,mucosal healing under endoscope and DR was 80.0 % (21/26),42.3 % (11/ 26) and 34.6% (9/26),respectively.The rate of clinical remission was higher in patients with the disease course less than one year (92.3% vs 69.2%,P=0.32).At week 30,the CDAI of patients significantly decreased compared with that before treatment (225.0(124.0,265.0) vs 81.5(67.0,111.0),Z=-4.877,P<0.01); the ESR and CRP levels significantly decreased; while the BMI and albumin levels increased.The rate of clinical remission,mucosal healing under endoscope and DR was 88.5 % (23/26),57.7%(15/26) and 53.8% (14/26),respectively.Rate of clinical remission was higher in patients with the disease course less than one year (100.0% vs 76.9%,P=0.22).The differences in the rates of clinical remission,mucosal healing and DR between week 14 and week 30 were not statistically significant.Conclusion IFX could induce and maintain DR in patients with moderate to severe CD.
7.Analysis Regarding Effect of Sympathetic Nerves on Body Regulation and Acupuncture Efficacy by Alpha1-adrenoreceptor Mediation
Hongxin BAI ; Bo JI ; Guozhen ZHAO ; Dan WANG ; Mingna YAN ; Xiaomin SUN ; Yawen LU ; Jian DAI
Progress in Modern Biomedicine 2017;17(23):4597-4600
To clarify the effect of the sympathetic nerves on the body's physiopathological changes and acupuncture effect by the alphal-AR mediation in the past 30 years.The paper has referred to the database of CNKI and Pubmed,and systematically reviewed the publications in the past 30 years about the research of the alphal-AR mediation of the sympathetic nerves to the body's physiological andpathological changes and acupuncture effect.Alphal-AR not only mediated the sympathetic nerves on the inotropic change of the heart,and the contraction of the vascular smooth muscles,bladder sphincter,and uterine smooth muscles and other physiological effect,but also mediated cardiac arrhythmia,myocardial hypertrophy and other pathological process.In addition,Alphal-AR also mediated the acupuncture signal transmission,and acupuncture was able to adjust the sympathetic nervous tension.The body's physiopathological changes are closely related to alpha1-AR and subtype alteration.The in-depth study of alphal-AR helps to explain physiopathological mechanism of the body,as well as provide theoretical basis and the corresponding pharmacological models for better selective drugs.Studying Alpha1-AR on meridians contributes to the discovery of meridian essence and the substantial basis of acupuncture effects.
8.Effect of electroacupuncture at different acupoints on hormones and neurotransmitters of hypotha- lamic-pituitary-adrenal axis in rats under simulated weightlessness.
Hei ZHANG ; Guozhen ZHAO ; Desheng WANG ; Baixiao ZHAO ; Bo JI ; Yan SONG ; Ping ZHANG ; Yali LIU ; Yinghui LI
Chinese Acupuncture & Moxibustion 2015;35(12):1275-1279
OBJECTIVETo explore the change pattern of hypothalamic-pituitary-adrenal (HPA) axis and related neurotransmitters under simulated weightlessness.
METHODSA total of 40 clean-grade male Wistar rats were randomly divided into a normal group, a tail-suspension group, an electroacupuncture (EA) at Neiguan (PC 6) group, an EA at Sanyinjiao (SP 6) group, 10 rats in each group. Rats in the tail-suspension group, EA at "Neiguan" (PC 6) group and EA at "Sanyinjiao" (SP 6) group were treated with tail suspension to simulate weightlessness effect. Rats in the normal group were treated with normal diet. Rats in the tail-suspension group were treated with tail suspension for 28 d. During the time of tail suspension, rats in the EA at "Neiguan" (PC 6) group were treated with EA at "Neiguan" (PC 6), 30 min per treatment, once every two days for 14 treatments, while rats in the EA at "Sanyinjiao" (SP 6) group were treated with EA at "Sanyinjiao" (SP 6), 30 min per treatment, once every two days for 14 treatments. Samples were all collected after 4 weeks. The contents of corticotropin releasing hormone (CRH) , adrenocorticotropic hormone (ACTH), corticosterone (CORT) in as well as 5-hydroxy tryptamine (5-HT), dopamine (DA), norepinephrine (NE) were measured by using radioimmunoassay.
RESULTSCompared with the normal group, in the tail-suspension group the content of ACTH in pituitary was significantly decreased (P< 0.05), and the content of 5-HT in hypothalamus was significantly decreased (P < 0.01); the content of CRH and 5-HT in hypothalamus was significantly decreased (P < 0.01, P < 0.05) in the EA at "Neiguan" (PC 6) group; the content of CRH and 5-HT in hypothalamus was significantly decreased (P < 0.01), and the content of CORT in serum was significantly decreased (P < 0.05) in the EA at "Sanyinjiao" (SP 6) group. Compared with the tail-suspension group, the content of ACTH in hypothalamus was significantly decreased (P< 0.05) in the EA at "Neiguan" (PC 6) group; the content of CRH, ACTH and CORT was significantly decreased (P < 0.01, P < 0.05) in the EA at "Sanyinjiao" (SP 6) group. Compared with the EA at "Neiguan" (PC 6) group, the content of CORT was decreased (P < 0.05) in the EA at "Sanyinjiao" (SP 6) group.
CONCLUSIONEA can regulate the content of 5-HT in hypothalamus in tail-suspension rats, inhibit the hyperactivity of the HPA axis, in which EA at "Sanyinjiao" (SP 6) had more significant effects than "Neiguan" (PC 6), but no obvious effects on NE and DA were observed.
Acupuncture Points ; Adrenocorticotropic Hormone ; metabolism ; Animals ; Corticotropin-Releasing Hormone ; metabolism ; Dopamine ; metabolism ; Electroacupuncture ; Hormones ; metabolism ; Hypothalamus ; metabolism ; Male ; Neurotransmitter Agents ; metabolism ; Norepinephrine ; metabolism ; Pituitary-Adrenal System ; metabolism ; Rats ; Rats, Wistar ; Serotonin ; metabolism ; Weightlessness
9.Serum Level and Significance of Specific Antibodies Against Staphyloc occus Aureus Enterotoxin B in Patients with Atopic Dermatitis and Eczema
Yan CHEN ; Fei HAO ; Qing GUO ; Guozhen TAN ; Hong JIA ; Zhigang BI ; Bo YANG ; Qingchun DIAO ; Dong YI ; Bian ZHAO
Chinese Journal of Dermatology 1994;0(06):-
0.05).Conclusions The higher level of SEB-specific IgM and IgE in AD and eczema indi cates the colonization of Staphylococcus aureus,which participates in the exace rbation of allergic inflammation,is involved in the pathogenesis of AD and ecz ema.
10.Study of the Post Effect of Electroacupuncture on Blood Flow in the Skins of Related Meridian Points in Rats with Acute Ischemic Myocardial Injury
Yali LIU ; Guozhen ZHAO ; Ping ZHANG ; Bo JI ; Jian DAI ; Yawen LU ; Mingna YAN ; Dan WANG ; Mengwei GUO ; Yingqiu MAO ; Xiaomin SUN ; Hongxin BAI ; Yongsi XU
Shanghai Journal of Acupuncture and Moxibustion 2016;35(6):732-737
Objective To observe over-time changes in rat blood flow in the skins of related meridian points during physiological status, the pathological state of ischemic myocardial injury and low or high frequency electroacupuncture intervention and explore the post effect of different frequency electroacupuncture on related meridian points after treating ischemic myocardial injury. Method Fifty male Wister rats were randomized into five groups: blank control, sham operation, model, low frequency electroacupuncture (meridian point A) and high frequency electroacupuncture (meridian point B), 10 rats each. Blood flow in the skins of bilateral points Neiguan (PC6), Ximen (PC4) and Tianquan (PC2), and non-meridian and non-acupoint control points was measured by laser speckle contrast imaging in every group immediately and at 30 and 60 min after the end of three treatments. Statistical analysis was made. Result Blood flow in the skins of bilateral points Neiguan, Ximen and Tianquan was significantly lower in the blank control group than in the model group (P<0.01,P<0.05). Blood flow in the skin of every acupoint increased in varing degrees after low or high frequency electroacupuncture treatment. Blood flow in bilateral points Neiguan, Ximen and Tianquan regions in meridian point group A was closer to that in the blank control group immediately after treatment. Blood flow in three left-side and three right-side acupoint regions in meridian point group B was closer to that in the blank control group at 30 and 60 min, respectively, after treatment. Conclusion The immediate effect of low frequency electroacupuncture on blood flow in acupoint regions is better than high frequency electroacupuncture during intervention in ischemic myocardial injury. The post effect of high frequency electroacupuncture on blood flow in acupoint regions is better than low frequency electroacupuncture during intervention in ischemic myocardial injury.