4.Effect of Hematopoietic Growth Factors in Placenta Chorionic Villi and Umbilical Cord Blood on Placenta Hematopoiesis
hui, YAO ; hai-yan, XU ; bo-jun, SHEN ; xiao-ling, BAI ; jin -guang, CAI ; qing, SHI
Journal of Applied Clinical Pediatrics 1992;0(06):-
Objective To study the role of hematopoietic growth factor(HGF)of placenta chorionic villus in fetal hematopoiesis during embryo ontogeny by observation of the appearance time and the content changes with the fetal growth, which was compared with HGF in cord blood. Methods Thirty embryo villus (2 g each) and 30 cord blood (2 mL each) were collected separately from early pregnant stage(6- 8 weeks), middle pregnant stage(16-22 weeks)and late pregnant stage (37-42 weeks). The levels of HGF were detected by enzyme - linked immunosorbent assay. Results HGF were produced on the early pregnant stage and the content of FL-T3,IL-3 increased gradually.There were significantly differences at different stages(P
6.Effect of ginkgolide B on plasma levels of interleukin-12 and PAF in severe acute pancreatitis in rats.
Yao DI ; Shi-Hai XIA ; Chang-Qing TONG
Chinese Journal of Applied Physiology 2008;24(2):152-155
AIMTo observe the levels of interleukin-12 (IL-12) and platelet activating factor (PAF) in severe acute pancreatitis (SAP) in rats and the efficacy of Ginkgolide B (BN52021) in treating SAP.
METHODSWistar rats were randomly divided into 3 groups: model group (SAP), treatment group (BN) and negative control group (NC). SAP was induced by retrograde infusion of 5% sodium taurocholate into the pancreatic duct in Wistar rats. NC rats only receive abdominal incision. In groups of SAP and NC rats received the femoral vein injection of isotonic Na chloride 15 minutes after induction of SAP; in BN group,rats received BN52021 instead. After operation rats were sacrificed at 1, 6 and 12 hour for plasma IL-12 and PAF determined with ELISA.
RESULTSAn increase of IL-12 in group BN was observed VS group SAP or group NC at 1 h stage (p = 0.011, P < 0.01). At 6 h or 12 h stage,an increase of IL-12 in group SAP was observed VS group NC (P < 0.01, P < 0.05). The plasma level of PAF in group SAP or group BN was increased significantly at 1 h time stage VS group NC (P < 0.001). At 6 h or 12 h stage, a decrease of PAF in group BN or group NC was observed VS group SAP (P < 0.05, P < 0.01).
CONCLUSIONIt confirmed that the plasma level of cytokine IL-12 in SAP group was decreased significantly in early stage and it witnessed a remarkable increase of cytokine PAF. The plasma level of IL-12 was increased in early stage but PAF was decreased in rats treatment by BN52021 which inhibited the development of SAP.
Acute Disease ; Animals ; Ginkgolides ; pharmacology ; Interleukin-12 ; blood ; Lactones ; pharmacology ; Male ; Pancreatitis ; blood ; Platelet Activating Factor ; metabolism ; Rats ; Rats, Wistar
7.99Tcm-MIBI SPECT in estimation of the treatment response to three-dimensional conformal radiotherapy in patients with non-small cell lung cancer
Li-xin, YAO ; Zhan-zhao, FU ; Tao, GU ; Lei-ming, GUO ; Hai-xia, HUA ; Qing-huai, ZHANG
Chinese Journal of Nuclear Medicine 2010;30(3):155-157
Objective To explore whether the degree of 99Tcm-methoxyisobutylisonitrile (MIBI) uptake in non-small cell lung cancer (NSCLC) could be correlated with the treatment response to three-dimensional conformal radiotherapy.Methods A total of 102 patients with NSCLC were studied with 99Tcm-MIBI SPECT before radiotherapy.The patients were classified by a follow-up CT as responders (complete or partial remission) and non-responders (stable or progressive disease).After intravenous administration of 740 MBq 99Tcm-MIBI, SPECT imaging at 10-30 min (early) and 2-3 h (delayed) were performed.Region of interest (ROI) was placed over the tumors and contralateral normal lung tissue.The uptake ratio of tumor to contralateral normal lung (T/N) was obtained from both early (ER) and delayed (DR) SPECT images.The retention index (RI) was measured as:RI = (DR - ER)/ER×100%.Statistical analysis was performed by two independent-sample t-test and Mann-Whitney U test using software SPSS 13.0.Results 99Tcm-MIBI uptake was significantly higher in responders than in non-responders:2.36 ±0.17 vs 1.82 ±0.14 (ER) and 2.48 ± 0.20 vs 1.94 ± 0.16 (DR), respectively (t = - 13.1,- 12.7, both P< 0.05).The median RI in the responders group was also significantly higher than that in the non-responders group (6.60% vs 5.13%, z = - 6.83, P < 0.05).Conclusion ER, DR and RI of 99Tcm-MIBI SPECT might be useful to estimate the treatment response to three-dimensional conformal radiotherapy in patients with NSCLC.
8.Effect of xuezhikang on blood lipids, serum oxidized low density lipoprotein, C-reactive protein and fibrinogen in patients with unstable angina pectoris.
Qing-hai YAO ; Chang-cong CUI ; Jun-kui WANG
Chinese Journal of Integrated Traditional and Western Medicine 2003;23(10):750-752
OBJECTIVETo study the lipid regulatory effect of Xuezhikang (XZK) and its effects on serum oxidized low density lipoprotein (OX-LDL), C-reactive protein (CRP) and fibrinogen (FIB) in patients with unstable angina pectoris (UAP).
METHODSUAP patients with hyperlipidemia were treated with XZK 0.6 g, orally taken, twice a day for 2 successive months followed by half dosage for 2 months. To UAP patients with normal blood lipids, Vit E was given orally for 4 months. Levels of blood lipids, OX-LDL, CRP, FIB at the time of entry, 1st and 2nd month of the therapeutic course were observed and end-point events in the two groups was compared.
RESULTSXZK can reduce the serum level of total cholesterol, low density lipoprotein after being administered for 1 month, and the effect further elevated after 2 months. Its effect in lowering triglycerides and increasing high density lipoprotein initiated after 2 months administration. Compared with effect of Vit E, XZK can significantly lower the serum OX-LDL, CRP and FIB after 2 months administration, and reduce the end-point events in 4 months.
CONCLUSIONXZK has good regulatory effect on blood lipids, it also can inhibit the development of inflammation in coronary plaque, therefore, is beneficial to the prognosis of UAP patients.
Adult ; Aged ; Angina, Unstable ; blood ; complications ; drug therapy ; C-Reactive Protein ; metabolism ; Cholesterol ; blood ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Fibrinogen ; metabolism ; Follow-Up Studies ; Humans ; Hyperlipidemias ; blood ; complications ; drug therapy ; Lipoproteins, LDL ; blood ; Male ; Middle Aged ; Oryza ; Phytotherapy
9.Hydroxylation of 16alpha, 17alpha-epoxy-4-pregenene-3, 20-dione by Absidia coerulea with pseudo-crystallo feed.
Jia WANG ; Yi-Xin GUAN ; Hai-Qing WANG ; Shan-Jing YAO
Chinese Journal of Biotechnology 2006;22(4):662-666
The 11-hydroxylation of 16alpha,17alpha-epoxy-4-pregenene-3,20-dione as a useful intermediate for the preparation of hormones can be achieved by the mycelium of Absidia coerulea at higher conversion rate than using other strains. In this paper 16alpha,17alpha-epoxy-4-pregenene-3,20-dione mixed with a little water, beta-cyclodextrin, Tween-80 was introduced into the fermentation broth after ultrasonication to increase pseudo-water-solubility of the hydrophobic substrate. This pseudo-crystallo feed could avoid the toxicity of organic solvents and was more available for the microbial transformation. The multi layer feed-forward neural network was used to setup a model which indicated the relationship between medium and feed components and the conversion rate. Particle swarm optimization (PSO), which was a stochastic global optimization algorithm and of which the convergence speed was high, was applied to obtain the optimal concentration of the medium and feed components. At optimum conditions with the pseudo-crystallo feed, the conversion rate of 16alpha,17alpha-epoxy-4-pregenene-3,20-dione at an initial concentration of 10 g/L was 87.5% in shaking flasks. The conversion rate of the substrate was up to 86.6% at higher concentration of 20 g/L feed in a 3.7 L fermentor.
Absidia
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metabolism
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Fermentation
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Hydroxylation
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Pregnenediones
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metabolism
10.The significance of intraoperative computed tomograph scan for complex acetabular fractures
Meng XU ; Li-hai ZHANG ; Li-cheng ZHANG ; Xiang-dang LIANG ; Ming-qing ZHANG ; Zhe-jiang YAO ; Pei-fu TANG
Chinese Journal of Orthopaedics 2011;31(11):1261-1265
ObjectiveTo investigate the application of intraoperative Computed Tomograph (CT) using in surgery for complex acetabular fractures.MethodsFrom June 2008 to December 2010,14 patients (9 males,5 females; with the mean age of 45.1 years; range,28-62 years) with complex acetabular fractures were operated using intraoperative CT.Preoperative radiotherapy and CT scan were adopted to evaluate the fractures.Three dimensional reconstruction based on CT scan was used to mimic surgery.The surgery approach and the type of internal fixators were noted.Intraoperative C-arm and CT scan were used to evaluate the fractures reduction respectively.Decision of additional reduction was made by surgeons according to above mentioned methods respectively and the results were noted.Comparing to preoperative design,the change of surgery plan were noted.Overall time,frequency and radiation dose of intraoperative CT scan were also noted.ResultsAll patients in this study received average 2.7 times of intraoperative CT scan.Mean time of CT scan was 40.4 min and the overall dose of radiation was 47.2 mGy.Decision of additional reduction was made in 3 cases according to C-arm radiography and 4 cases according to CT scan (above mentioned 3 cases were included).The change of surgery plan was made in one case.In postoperative radiography evaluation according to Matta's score system,anatomical reduction were achieved in 8 cases,imperfect reduction in 3 cases and poor reduction in 3 cases.ConclusionIntraoperative CT scan increases the radiation time and dose of patients dramatically.When used to evaluate fracture reduction intraoperatively,it can't take the advantage of traditional C-arm radiography.When delicate preoperative plan is made with radiography and three dimensional reconstruction based on CT data,the efficiency of intraoperative CT scan for complex acetabular fractures are to be discussed.