Puerarin reduces intracellular Ca2+ concentration and upregulates BDNF to protect hippocampal neurons in vascular dementia rats / 西安交通大学学报(医学版)

【Objective】 To observe the effect of puerarin on the concentration of Ca2+ and the expression of brain derived neurotrophic factor (BDNF) in hippocampal neurons of vascular dementia (VD) rats so as to explore the mechanism of puerarin in protecting nerve cells. 【Methods】 Male SD rats were randomly divided into sham operation group, model group, and puerarin intervention group. The vascular dementia model was established by ligating bilateral common carotid arteries at intervals of 3 days. Two weeks after the operation, the learning and memory abilities of the rats were evaluated by Morris water maze, and the expression of BDNF in the hippocampus of the rats was detected by immunohistochemistry and Western blotting. The mean fluorescence intensity was measured by flow cytometry to represent the intracellular free Ca2+ concentration. 【Results】 In the puerarin intervention group, the rats’ escape latency in Morris water maze was significantly shortened, the expression of BDNF in the hippocampus was significantly increased, and the concentration of Ca2+ in hippocampal neurons was decreased. Compared with the model group, the difference was statistically significant (all P<0.05). 【Conclusion】 Puerarin has neuroprotective effect on VD rats, and its mechanism may be related to the decrease of Ca2+ concentration in hippocampal neurons and the up-regulation of BDNF expression.

Mining genes associated with furanocoumarin biosynthesis in an endangered medicinal plant, Glehnia littoralis

The endangered medicinal plant Glehnia littoralis is one of the important natural source of furanocoumarin, which has been used as mucolytic, antitussive, antitumour and antibacterial. However, the genetic information of furanocoumarin biosynthesis in G. littoralis is scarce at present. The objective of this study was to mine the putative candidate genes involved in the biosynthesis pathway of furanocoumarin and provide references for gene identification, and functional genomics of G. littoralis. We carried out the transcriptome analysis of leaves and roots in G. littoralis, which provided a dataset for gene mining. Psoralen, imperatorin and isoimperatorin were detected in G. littoralis by high performance liquid chromatography analysis. Candidate key genes were mined based on the annotations and local BLAST with homologous sequences using BioEdit software. The relative expression of genes was analysed using quantitative real-time polymerase chain reaction. Further, the CYP450 genes were mined using phylogenetic analyses using MEGA 6.0 software. A total of 156,949 unigenes were generated, of which 9021 were differentially-expressed between leaves and roots. A total of 82 unigenes encoding eight enzymes in furanocoumarin biosynthetic pathway were first obtained. Seven genes that encoded key enzymes in the downstream furanocoumarin biosynthetic pathway and expressed more in roots than leaves were screened. Twenty-six candidate CYP450 unigenes expressed abundantly in roots and were chiefly concentrated in CYP71, CYP85 and CYP72 clans. Finally, we filtered 102 differentially expressed transcription factors (TFs) unigenes. The transcriptome of G. littoralis was characterized which would help to elucidate the furanocoumarin biosynthetic pathway in G. littoralis and provide an invaluable resource for further study of furanocoumarin.

Value of diffusion?weighted imaging in the evaluation of therapeutic effect of cyber knife on hepatocellular carcinoma / 中华放射学杂志

Objective To investigate the value of DWI in the evaluation of the therapeutic effect of cyber knife in the treatment of hepatocellular carcinoma.Methods Ninety patients who were clinically diagnosed with hepatocellular carcinoma (95 lesions) in the 5th Medical Center of General Hospital of PLA from February 2011 to December 2013 were retrospectively analyzed. All 90 patients underwent pre‐treatment dynamic contrast‐enhanced MRI scans of liver. Fourty six of them underwent liver MRI scan 3 months after treatment with cyber knife, and 49 patients underwent liver MRI scans 6 months after treatment. According to the evaluation criteria of solid tumor effect, complete necrosis tumor lesions and postoperative residual active lesions were determined. The ADC values of residual active tissue lesion, necrosis lesion in tumor and normal liver were measured. Paired sample t test was used to compare the difference of ADC values of tumor necrosis lesions and normal liver tissues between 3 and 6 months after treatment and before treatment, and ROC was used to evaluate the efficacy of ADC values in predicting complete tissue necrosis after treatment. Results In the 95 lesions, 91 lesions were completely necrotic, and active tissues were found in 4 lesions after treatment. There were statistically significant differences in the ADC values of the lesions at 3 and 6 months after treatment and before treatment (P<0.05),and the ADC values of the tissues after treatment were higher than those before treatment. There was no statistically significant difference in ADC values between 3 and 6 months after treatment and before treatment in normal liver tissue (P>0.05). The area under the ROC of using ADC value to predict the complete necrosis after treatment with cyber knife was 0.767, and the ADC value was 1.23×10‐3 mm2/s as the diagnostic cutoff value. The sensitivity and specificity of the diagnosis were 76.5% and 70.6%, respectively. Conclusion ADC values can distinguish the necrotic component from the active component of hepatocellular carcinoma after treatment, and can be used to evaluate the therapeutic effect of cyber knife in hepatocellular carcinoma.

Clinical observation of long-time needle retaining at Baihui (GV 20) on post-stroke cognitive disorder of deficiency and blood stasis / 中国针灸

OBJECTIVE@#To observe the clinical efficacy of long-time needle retaining at Baihui (GV 20) on post-stroke cognitive disorder of deficiency and blood stasis.@*METHODS@#A total of 70 patients (3 cases dropping) with post-stroke cognitive disorder of deficiency and blood stasis were randomized into an observation group (34 cases) and a control group (33 cases). Neurological routine treatment and western medicine rehabilitation therapy were given in the control group as the basic treatment, on the basis of the treatment as the control group, long-time needle retaining at Baihui (GV 20) was applied in the observation group. The treatment was given once every other day, 3 times a week for a total of 4 weeks. The National Institute of Health stroke scale (NIHSS), mini-mental state examination (MMSE), Montreal cognitive assessment (MoCA) and deficiency blood stasis syndrome scale score were observed before and after treatment, and the clinical efficacy was compared between the two groups.@*RESULTS@#After 4 weeks of treatment, the NIHSS scores of the two groups were lower than those before treatment (both 0.05). The total effective rate was 94.1% (32/34) in the observation group, which was higher than 75.8% (25/33) in the control group (<0.05).@*CONCLUSION@#Long-time needle retaining at Baihui (GV 20) is safe and effective in treating with post-stroke cognitive disorder of deficiency and blood stasis.

Application of intravoxel incoherent motion diffusion weighted imaging in inflammation activity of chronic hepatitis B / 中华放射学杂志

Objective To discuss the diagnostic value of intravoxel incoherent motion(IVIM)DWI in the inflammation activity of chronic hepatitis B. Methods One hundred and seventy-five patients with chronic hepatitis B were prospectively collected as inflammation group, and 15 healthy volunteers with no history of hepatitis and normal liver function as control group.All subjects were performed MR plan scans for liver and IVIM tests.The liver apparent diffusion coefficient(ADC),the diffusion coefficient of the true water molecule (D), microcirculation perfusion coefficient (D*) and perfusion fraction (f) were measured. After MRI examination, the inflammation group received liver biopsy within two days, and obtained the pathological hepatitis activity grades.According to the degree of inflammation activity(G),the inflammation group was divided into G1,G2 and G3+G4 groups.The independent sample t test was used for the parameter values between the inflammation group and the control group.A single factor variance analysis was used to compare the parameters among different levels of inflammation group. Spearman correlation analysis was used to evaluate the correlation between inflammation activity grades and IVIM parameters.ROC curve was used to evaluate each parameter in the diagnosis of hepatitis activity pathology classification efficiency.Results The values of ADC, D, D*, f between control group and inflammation group were statistically significant(P<0.05).The results of pathological puncture showed that there were 61 cases of G1,62 cases of G2 level and 52 cases of G3+G4.The ADC,D*and f values in the G1,G2,G3+G4 groups decreased with the increase of the level of inflammation activity, and the difference was statistically significant (P<0.05). There was no statistically significant difference between D values (P>0.05). ADC, D* and f values were correlated negatively with low,moderate and low levels of inflammation activity(r=-0.377,-0.434,-0.226, P<0.05).There was no correlation between D value and inflammation activity(r=-0.076,P>0.05).Areas of ADC,D*and ADC combined with D*values under ROC curves to diagnose≥G2 grade inflammation activity were 0.732, 0.748, 0.837 respectively. Areas of f values under ROC curve to diagnose ≥G3+G4 grade inflammation activity was 0.600.Conclusion ADC and D*values help to identify≥G2 grade inflammation activity,and ADC combined with D*value has the highest diagnostic performance,and has certain reference value for clinical treatment.

Differential Diagnosis of Common Liver Lipid-containing Tumors Using Diffusion Weighted Imaging / 中国医学影像学杂志

Purpose To investigate the application value of diffusion weighted imaging (DWI) in differential diagnosis of common liver lipid-containing tumors.Materials and Methods Sixty patients with pathologically confirmed liver lipid-containing tumors from January 2011 to August 2015 were retrospectively analyzed,including 25 cases ofhepatocellular carcinoma (HCC),20 cases of hepatic adenoma (HA) and 15 cases of hepatic angiomyolipoma (HAML).Apparent diffusion coefficient (ADC) value and ratio of ADCtumor/ADCliver (rADC) of tumors were respectively measured.Routine MRI findings were analyzed.Results The MRI findings of these three common liver lipid-containing tumors were with their own characteristics.For HCC,HA and HAML,the average ADC value was (1.225±0.221)×10-3 mm2/s,(1.318±0.212)×10-3 mm2/s and (1.317±0.297)×103 mm2/s,respectively,(b=800 s/mm2);the average rADC value was 1.004± 0.151,0.984 ± 0.146 and 1.027±0.223,respectively.There was no significant difference in ADC and rADC among these three tumors (P＞0.05).Conclusion ADC and rADC had no differential diagnosis value in common liver lipid-containing tumors.Routine MRI signals and enhanced imaging features are the main diagnostic basis.

Clinical significance of IL-17 expression in serum of patients with psoriasis vulgaris and effects of shikonin on IL-6 and IL-23 production in IL-17-stimulated HaCaT cells / 吉林大学学报(医学版)

Objective:To explore the expression level of serum interleukin-17 (IL-17) in the patients with psoriasis vulgaris and the changes of interleukin-6 (IL-6) and interleukin-23 (IL-23) levels secrered by the HaCaT cells after stimulated with IL-17,and to clarify its clinical significance and the intervention effect of shikonin.Methods:Twenty-five normal controls,29 patients with psoriasis vulgaris and different groups of HaCaT cells (blank control group,IL-17-24 h group,IL-17-36 h group,IL-17-48 h group,shikonin+-IL-17 group,CsA+-IL-17 group and IL-17 group) were used as the subjects.The levels of serum IL-17 in the patients with psoriasis vulgaris and the levels of IL-6 and IL-23 in supernatant of HaCaT cells in various groups were measured by double antibody sandwich enzyme-linked immunosorbent assay (ELISA) and real-time polymerase chain reaction RT-PCR was used to detect the expression levels of IL-6 and IL-23 p19 mRNA in HaCaT cells in various groups.At the same time,Cell Counting Kit-8 (CCK-8) method was used to detect the viabilities of HaCaT cells in various groups.Results:The level of serum IL-17 of the patients in psoriasis vulgaris group was increased compared with nomral control group,especially in the severe skin lesion group (P＜0.05).The levels of IL-6 and IL-23 in HaCaT cells and supernatant and their mRNA expression levels in IL-17-24 h,IL-17-36 h and IL-17-48 h groups were significantly higher than those in blank control group (P＜0.01).The expression levels of IL-6 and IL-23 in HaCaT cells and supernatant and their mRNA expression levels in shikonin+IL-17 and CsA+IL-17 groups were lower than those in IL-17 groups (P＜0.05).No statistical differences were found in the cell viabilities between each drug treatment group and blank control group (P＞0.05).Conclusion:The expression level of IL-17 in the patients with psoriasis vulgaris is significantly increased,especially in the patients with severe psoriasis vulgaris.IL-17 can promote the secretion of IL-6 and IL-23 in HaCaT cells in a time-dependent manner.Shikonin can inhibit the proinflammatory effect of IL-17.

Clinical significance of IL-17 expression in serum of patients with psoriasis vulgaris and effects of shikonin on IL-6 and IL-23 production in IL-17-stimulated HaCaT cells / 吉林大学学报(医学版)

Objective:To explore the expression level of serum interleukin-17 (IL-17) in the patients with psoriasis vulgaris and the changes of interleukin-6 (IL-6) and interleukin-23 (IL-23) levels secrered by the HaCaT cells after stimulated with IL-17,and to clarify its clinical significance and the intervention effect of shikonin.Methods:Twenty-five normal controls,29 patients with psoriasis vulgaris and different groups of HaCaT cells (blank control group,IL-17-24 h group,IL-17-36 h group,IL-17-48 h group,shikonin+-IL-17 group,CsA+-IL-17 group and IL-17 group) were used as the subjects.The levels of serum IL-17 in the patients with psoriasis vulgaris and the levels of IL-6 and IL-23 in supernatant of HaCaT cells in various groups were measured by double antibody sandwich enzyme-linked immunosorbent assay (ELISA) and real-time polymerase chain reaction RT-PCR was used to detect the expression levels of IL-6 and IL-23 p19 mRNA in HaCaT cells in various groups.At the same time,Cell Counting Kit-8 (CCK-8) method was used to detect the viabilities of HaCaT cells in various groups.Results:The level of serum IL-17 of the patients in psoriasis vulgaris group was increased compared with nomral control group,especially in the severe skin lesion group (P＜0.05).The levels of IL-6 and IL-23 in HaCaT cells and supernatant and their mRNA expression levels in IL-17-24 h,IL-17-36 h and IL-17-48 h groups were significantly higher than those in blank control group (P＜0.01).The expression levels of IL-6 and IL-23 in HaCaT cells and supernatant and their mRNA expression levels in shikonin+IL-17 and CsA+IL-17 groups were lower than those in IL-17 groups (P＜0.05).No statistical differences were found in the cell viabilities between each drug treatment group and blank control group (P＞0.05).Conclusion:The expression level of IL-17 in the patients with psoriasis vulgaris is significantly increased,especially in the patients with severe psoriasis vulgaris.IL-17 can promote the secretion of IL-6 and IL-23 in HaCaT cells in a time-dependent manner.Shikonin can inhibit the proinflammatory effect of IL-17.

Shuxuening injection combined with deproteinized extract of calf blood on serum IGF-1, IL-1 and ICAM-1 in patients with cerebral infarction recovery stage / 中国生化药物杂志

Objective To investigate Shuxuening injection combined with deproteinized extract of calf blood on serum IGF-1, IL-1 and ICAM-1 level in patients with cerebral infarction recovery stage.Methods 120 patients with cerebral infarction were collected.According to the different drug treatment, 60 cases in each group were given corresponding drug treatment, on the basis of control group, the calf blood extract injection was given in experimental group.After the end of treatment, all patients blood rheology, IGF-1, IL-1 and ICAM-1 levels were tested.Results Compared with control group, the indexes of the patients in experimental group improved more significantly, whole blood viscosity, red blood cell pressure volume, platelet aggregation rate decreased significantly(P<0.05); serum IGF-1 levels in experimental group decreased significantly(P<0.05).The levels of serum IL-1, ICAM-1 in experimental group decreased significantly(P<0.05).Conclusion Shuxuening injection combined with deproteinized extract of calf blood can significantly reduce serum IGF-1, IL-1 and ICAM-1 levels in patients with cerebral infarction recovery stage, improve blood flow, reduce blood viscosity.

The application strategy for mammotome in breast diseases / 中华内分泌外科杂志

Objective To explore the indication,operative methods,operation skill and prevention of complications of mammotome(MMT) in breast diseases.Methods From Aug.2009 to Aug.2013,3676 breast lesions in 1356 patients received MMT micro-invasive operation by decussation process with different incision and needle tracks according to the location of lesions.Experience of the indication,operation technique and prevention of complications were summed up.Results 775 lesions were in left breast and 639 in right breast.652 patients had single lesion and 865 patients had multiple lesions.The pathology results:320 cysts (8.71％,320/3676) were adenosis of breast with mammary duct ectasia or with metaplasia apocrine.36 solid and cystic tumors (0.98％,36/3676)were intraductal papillomas.3310 solid tumors (90.04％)included 13 breast cancers (0.39％,13/3310),2246 fibroadenomas(67.85％,2246/3310) and 1051 adenosis(31.75％,1051/3310).10nodules of calcification were adenosis of breast.13 patients with breast cancer received modified radical mastectomy.The postoperative results:skin bruises in 184 cases(5％),hematoma in 36 cases(0.98％).No postoperative residual was found.Conclusion According to the strict application of MMT minimally invasive surgery and by decussation process based on the appropriate incision and needle track,MMT minimally invasive surgery can achieve safe,minimally invasive,good-looking and completely removal effect.

Diagnostic value analysis of 64 layers spiral CT for gastric carcinoma / 重庆医学

Objective To explore the diagnostic value of 64 layers spiral CT for gastric carcinoma .Methods The 87 patients (primarily diagnosed gastric carcinoma )were studied and scanned under 64 layers spiral CT including plain scans and enhanced scans respectively .The source images were reconstructed using the technique of multilane volume reconstruction (MPVR) and CT virtual endoscopy (CTVE) and conducting TNM stage ,then compared to histopathology results after surgery .Results 85 out of 87 patients with gastric carcinoma were diagnosed by CT .Detection rate of multi-detector CT(MDCT) for gastric cancer was 97 .7% , while the early stage and advanced stage gastric carcinoma were 66 .7% and 100% respectively .The accuracies of 64 layers spiral CT for the T stage ,the N stage and the M stage of the gastric carcinoma were 83 .9% ,72 .4% and 92 .0% respectively .Conclusion 64 layers spiral CT could be helpful for the diagnosis of gastric carcinoma and TNM stage .It might play great roles for the diag-nosis and treatment of gastric carcinoma .

Synergy effects of octreotide combined with cisplatin and 5-fluorouracil on inhibition of lung adenocarcinoma cell line A549 / 国际肿瘤学杂志

Objective To investigate whether octreotide,as somatostatin analogue,can enhance the sensitivity of the human lung adenocarcinoma cell line A549 to chemotherapeutic drugs.Methods Different concentration of octretide,cisplatin and 5-Fluorouracil (5-Fu) was respectively acted on the lung adenocarcinoma cell line A549.The absorbance value was tested by colorimetry through MTT method to evaluate the effect of octreotide,cisplatin,5-Fu or the three drugs combined respectively after 48 hours.Each drug concentration had six holes and it repeated three times.The effects of combination therapy was analysed with isobologram.Results It was proved that octreotide could inhibit the proliferation of A549 cells in a dose-dependent manner at the concentration range of 1.3 mg/L ～ 166.7 mg/L.The inhibition rate was dose-dependent which was higher when octreotide combined with cisplatin and 5-Fu than it alone.It has statistically significant difference (P ＜ 0.05 ).The effect plots of IC50 were located in the synergy areas of isobologram.Conclusion It can be concluded that octreotide could inhibit the proliferation of A549 cells in vitro.This inhibition enhances when octreotide is combined with cisplatin and 5-Fu.Octreotide can enhance the susceptibility of A549 cells to cisplatin and 5-Fu.

The research of that Shikonin effects on VEGF production in IL-17-stimulated HaCaT cells / 中华微生物学和免疫学杂志

Objective To investigate whether IL-17 could stimulate the vascular endothelial growth factor (VEGF) production on HaCaT cells alone. We also investigated whether shikonin could inhibited the proinflamation effects of interleukin-17(IL-17) acting on HaCaT cells. MethodsWe examined the expression of VEGF by double antibody sandwich enzyme-linked immunosorbent assay ( ELISA ) and realtime polymerase chain reaction(RT-PCR) in HaCaT cells and the cell supernatant. The viability of HaCaT cells in the drug group was detected by the Cell Counting Kit-8 (CCK-8). ResultsThe expression of VEGF in different time IL-17-stimulated groups on HaCaT cells and the cell supernatant were higher than the control group( P＜0.001 ). The expression of VEGF in different drug treatment groups on HaCaT cells and the cell supematant were lower than the stimulated group by IL-17 ( P＜0. 001 ). The cell viability of different drug treatment groups have no significant difference( P＞0.05 ). ConclusionWe show that IL-17 specifically and time-dependently augmented and induced VEGF expression on HaCaT cells and the cell supernatantThen shikonin markedly inhibited the increase tengency of IL-17 effection on HaCaT cells and the cell supematant level.

Effect of PNCG on the Expression of CLA+T Cell Derived Cytokines in Atopic Dermatitis / 中国医科大学学报

Objective To investigate the influence of polysaccharide and nucleoside extract from bacille Calmett-Gueiin (PNCG) on the frequency of peripheral cutaneous lymphocyte-associated antigen positive (CLA~+) T lymphocyte derived lymphokines in atopic dermatitis (AD) and to explore their associations with the disease severity. Methods A randomized,double blind and placebo cross-over control method was used to treat the AD patients. Before and after the treatment,flow cytometry was used to measure the frequencies of IL-4,IL-5, IFN-γ,TNFα positive CLA~+T cells. Disease severity was evaluated by atopic dermatitis area and severity index score (ADASIS). Results After the PNCG treatment,the frequency of IL-5~+ CLA~+T cell decreased significantly,while IFN-γ increased,compared with the placebo con-trol group. PNCG could improve the ADASIS. Conclusion PNCG may treat AD through restoring the immune balance of CLA~+T cells.

A comparison of defecation function between coloplasty pouch and colonic J-pouch in patients after resection for rectal carcinoma / 中国普通外科杂志

0.05). Conclusion The defecation function was similar between CPP group and CJP group. Therefore, the coloplasty pouch seems to be superior because of feasibility, simplicity, and effectiveness.