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1.
China Pharmacy ; (12): 153-159, 2022.
Article in Chinese | WPRIM | ID: wpr-913104

ABSTRACT

OBJECTIVE To establish the infrared fingerprints of Achyranthes bidentata from different producing areas ,and to conduct multivariate statistical analysis. METHODS The infrared fingerprints of 61 batches of A. bidentata samples were established by Spectrum for Window 3.02 and OMNIC 9.2 software. Taking the relative peak height of common peaks of infrared fingerprint as the variable ,the normal distribution analysis was carried out by Excel 2016 software;SPSS 22.0 software was used for cluster analysis and principal component analysis ,and the comprehensive score was calculated ;the orthogonal partial least squares-discriminant analysis was carried out by SIMCA 14.1 software,and the marker wave numbers affecting the quality of A. bidentata were screened by taking the variable importance in projection (VIP)>1 as the standard. RESULTS The correlation coefficients of infrared spectra of 61 batches of A. bidentata samples were 0.967 2-0.997 7;there were 13 common peaks. The results of normal distribution analysis showed that the normal distribution curve of relative peak height of common peaks for A. bidentata from Henan and Hebei did not cross ,and the normal distribution curve of A. bidentata from Henan and Inner Mongolia crossed. The results of cluster analysis showed that when the distance between groups was 15,61 batches of A. bidentata samples could be clustered into 3 categories,including N 1-N12 were clustered into one category ,N13-N45 were clustered into one category,and N 46-N61 were clustered into one category. The results of principal component analysis showed that the cumulative variance contribution rate of the first three principal components was 91.121%;comprehensive score of qq.com A. bidentata (number N 40) in Jiabu village ,Jiaozuo City , Henan Province was the highest (2.39), and that of A.bidentata(number N 4)in Xin ’an village ,Anguo City ,Hebei Province was the lowest (-2.89). The results of orthogonal 163.com partial least squares-discriminant analysis showed that 61 batches of A. bidentata samples were divided into three categories ,including N 1-N12 were clustered into one category ,N13-N28 were clustered into one category and N 29-N61 were clustered into one category. Seven marker wave numbers affecting the quality were selected. The corresponding wave numbers of VIP from large to small were 1 059,927,2 933,813,1 732,1 128 and 3 367 cm-1,1 732 cm-1 was the characteristic obsorption peak of saponins ,1 059,1 128,927 cm-1 were the characteristic obsorption peaks of glycosides. CONCLUSIONS Infrared fingerprint combined with normal distribution analysis ,cluster analysis ,principal component analysis and orthogonal partial least squares-discriminant analysis can be used to identify A. bidentata from different producing areas.

2.
Article in Chinese | WPRIM | ID: wpr-885639

ABSTRACT

Objective:To analyze and evaluate the effect of OX40L as a potential adjuvant for H7N9 whole-virion inactivated vaccine (WIV).Methods:Fifty BALB/c mice were randomly divided into five groups and immunized intramuscularly with PBS (control group) and 1.5 μg WIV alone or in combination with 0.6, 1.8 or 3.0 μg Fc-fused OX40L (OX40L/Fc) adjuvant. Three weeks after immunization, IgG, IgG1 and IgG2 titers were measured by ELISA and hemagglutination inhibition (HI) assay. Moreover, the mice were challenged with 50×median lethal dose (LD 50) of homologous virus and the changes in mouse body weight and survival rate were recorded to evaluate the effects of OX40L. Flow cytometry was used to analyze the mechanism of OX40L as an adjuvant 7 d after immunization. Results:Compared with immunization with WIV alone, co-immunization of WIV with OX40L/Fc induced higher antigen-specific IgG in mice. The geometric mean titers (lgGMT) of antibodies induced by 0.6, 1.8 and 3.0 μg OX40L/Fc reached 3.79, 4.40 and 4.20, respectively. WIV combined with OX40L/Fc induced high levels of IgG1 and IgG2a without influencing Th1/Th2 balance. HI antibodies were also higher in WIV+ 1.8 μg OX40L/Fc and WIV+ 3.0 μg OX40L/Fc groups than in WIV group (6.25±0.50 and 5.70±0.97 vs 3.00±0.97, both P<0.05). WIV combined with 1.8 or 3.0 μg OX40L/Fc could protect 80% or 75% of mice against lethal challenge with H7N9 and result in less weight loss as compared with WIV alone. The most effective dose of OX40L/Fc was 1.8 μg. Flow cytometry showed that WIV (0.6, 1.8, 3.0 μg) in combination with OX40L/Fc enhanced the proliferation of T follicular helper cells (Tfh) through promoting the expression of CXCR5 and PD-1 as compared with WIV alone (all P<0.05). Conclusions:This study suggested that OX40L was beneficial to potent antibody responses induced by H7N9 WIV through promoting Tfh cell proliferation.

3.
Chinese Journal of Urology ; (12): 19-25, 2020.
Article in Chinese | WPRIM | ID: wpr-869585

ABSTRACT

Objective The aim of the study is to compare the diagnostic value of multiparametric transrectal ultrasound(TRUS) and multiparametric magnetic resonance imaging (MRI) in prostate cancer.Methods The clinical data of 102 patients who received multiparametric TRUS (including conventional transrectal ultrasound,shear wave sonoelastography and contrast enhanced ultrasound),multiparametric MRI (including T2 weighted diffusion weighted,and dynamic contrast enhanced MRI) and laboratory tests from April 2016 to May 2018 were retrospectively analyzed.The average age was 66.1 years old,ranging 38.0-85.0 years old.The average PSA was 30.1 ng/ml,ranging 0.4-227.0 ng/ml.The average PSAD was 0.67 ng/ml2,ranging 0.02-4.27 ng/ml2.The pathology results from TRUS guided biopsy or surgical operation were chosen as gold standard.Diagnostic performance including sensitivity,specificity,positive predictive value (PPV),negative predictive value (NPV),accuracy and area under the receiver operating characteristic curve (AUROC) of multiparametric TRUS and multiparametric MRI in prostate cancer were analyzed.Results There were 62 prostate cancer and 40 BPH patients in our study.Parallel multiparametric TRUS diagnosed 63 prostate cancer and 39 BPH,and multiparametric MRI diagnosed 75 prostate cancer and 27 BPH.The sensitivity,specificity and accuracy of parallel multiparametric TRUS were 98.4%,70.0% and 87.3%,respectively.And those of multiparametric MRI were 95.2%,60.0% and 81.4%,respectively.The AUROC of parallel multiparametric TRUS and multiparametric MRI were 0.842 and 0.776,with no significant differences (P =0.208).Conclusion The diagnostic value of multiparametrie TRUS was not inferior to multiparametrie MRI in prostate cancer.

4.
Chinese Journal of Geriatrics ; (12): 760-764, 2020.
Article in Chinese | WPRIM | ID: wpr-869482

ABSTRACT

Objective:To investigate the relationship between N-terminal pro-B-type natriuretic peptide(NT-proBNP)levels and frailty in elderly hospitalized patients.Methods:A total of 604 patients aged 65 years or older(with a mean age of 74.9±6.5)admitted to Beijing Hospital from September 2018 to February 2019 were consecutively enrolled in this cross-sectional study.Patients with clinical diagnosis of heart failure or left ventricular ejection fraction(LVEF)>50% were excluded.Participants were divided into the non-frail(n=130, 21.5%), pre-frail(n=327, 54.1%)and frail(n=147, 24.3%)groups based on the Fried phenotype.Clinical data, laboratory test results and echocardiographic data were collected.Blood levels NT-proBNP were measured.The ability of daily living activities was evaluated.The relationship of NT-proBNP levels with frailty and the diagnostic value of NT-proBNP levels for frailty screening were analyzed.Results:As the severity of frailty increased, elevated NT-proBNP levels were observed( P<0.01). NT-proBNP levels were higher in the frail group than in the pre-frail group [235.7(104.1, 650.3)ng/L vs. 123.2(67.7, 281.7)ng/L, P<0.01] and higher in the pre-frail group than in the non-frail group [123.2(67.7, 281.7)ng/L vs.88.2(49.9, 203.1)ng/L, P<0.01]. With increased severity of frailty, the anterior and posterior diameter of the left atrium increased( P<0.05), while LVEF decreased( P<0.05). Logistic regression analysis showed that NT-proBNP levels were independently associated with frailty( P<0.01). The level of NT-proBNP had a certain diagnostic value for frailty, and the area under the receiver-operating characteristics(ROC)curve was 0.688( P<0.01). Conclusions:The level of NT-proBNP is elevated in elderly frail inpatients, it is an independent factor for frailty.Measuring NT-proBNP levels in frail groups can help clinicians pay attention to patients' cardiac function and give appropriate interventions as early as possible.

5.
Article in Chinese | WPRIM | ID: wpr-866686

ABSTRACT

Objective:To investigate the change characteristics of SCP/DCP blood flow density and FAZ in retina of patients with acute central serous chorioretinopathy (CSC).Methods:The clinical data of 45 patients(45 eyes) with acute CSC in our hospital from January 2017 to October 2019 were retrospectively analyzed.All patients included 45 lesion eyes and 45 healthy eyes were set as lesion eye group and healthy eye group respectively, and 30 healthy people with 30 eyes were set as control group.The FAZ, blood flow density, CMT and SFCT of different groups were compared, and the enhanced morphology of capillary blood flow was analyzed.Results:There was no statistically significant difference in FAZ level in SCP among the three groups( P>0.05). The FAZ in DCP of the lesion eye group[(0.81±0.19)mm 2] was significantly higher than that in the healthy eye group [(0.43±0.12)mm 2] and the control group [(0.38±0.08)mm 2]( t=3.17, 3.22, all P<0.05). The blood flow density in the SCP/DCP of the lesion eye group and healthy eye group were significantly lower than those in the control group( t=2.69, 3.01, all P<0.05). The levels of CMT and SFCT in the lesion eye group [(427.43±35.66)μm and (359.43±32.95)μm] were significantly higher than those in the healthy eye group [(276.35±17.02)μm and (260.38±25.66)μm] and the control group [(285.69±11.47)μm and (235.76±20.50)μm] ( t=8.17, 9.89; 10.26, 15.92; all P<0.05). There was no statistically significant difference in CMT level between the healthy eye group and the control group( P>0.05). The level of SFCT of the healthy eye group was significantly higher than that in the healthy eye group and control group( t=4.39, P<0.05). The results of optical coherence tomography showed that the local enhancement of capillary blood flow was seen in 23 eyes, and the diffuse enhancement of blood flow was seen in 22 eyes in the affected eye group, and there was subretinal effusion at the same time.In the healthy eye group, the signal changes of capillary strength and intensity were seen.In the control group, there was no significant change. Conclusion:The results of OCTA showed that in lesion eye group, local enhancement of capillary blood flow was seen in 23 eyes and diffuse enhancement of blood flow was seen in 22 eyes, and subretinal effusion was all found.In healthy eye group, even strong and weak signal changes of capillary were seen, while there were no above changes in control group.

6.
Article in Chinese | WPRIM | ID: wpr-862031

ABSTRACT

Objective: To investigate the value of MRI enhancement degree in differential diagnosis of cerebellum cystic-solid hemangioblastoma and pilocytic astrocytoma. Methods: MRI data of 30 patients with cerebellum cystic-solid hemangioblastoma and 30 patients with cerebellum cystic-solid pilocytic astrocytoma confirmed by operation and pathology were retrospectively analyzed. The enhancement value of the solid component of the lesion was calculated, then ROC curve was drawn, and the diagnostic effect of the solid component enhancement level was evaluated. Results: Among 30 cases of cerebellum cystic-solid hemangioblastoma, cystic nodules were in 15 cases, while solid masses with cystic changes were observed in other 15 cases, and the parenchyma part was uniformly strengthened. Among 30 cases of cerebellum cystic-solid pilocytic astrocytoma, cystic nodules were detected in 11 cases, where as solid masses with cystic changes were noticed in 19 cases, 21 cases had uniform enhancement of parenchyma and 9 cases showeduneven enhancement. The parenchyma enhancement degree of cerebellum cystic-solid hemangioblastoma was 4.20 (3.28,4.84), of cerebellum cystic-solid pilocytic astrocytoma was 1.95 (1.49,2.43) (F=72.69,P<0.01). The specificity and sensitivity of diagnosis of cerebellum cystic-solid hemangioblastoma was 88.9% and 92.9%, respectively. Taken the enhancement amplitude 2.58 as the threshold, the AUC was 0.95. Conclusion: The degree of MRI enhancement of solid tumor components is helpful to distinguishing cerebellum cystic-solid hemangioblastoma and pilocytic astrocytoma.

7.
Chinese Journal of Urology ; (12): 19-25, 2020.
Article in Chinese | WPRIM | ID: wpr-798857

ABSTRACT

Objective@#The aim of the study is to compare the diagnostic value of multiparametric transrectal ultrasound(TRUS) and multiparametric magnetic resonance imaging (MRI) in prostate cancer.@*Methods@#The clinical data of 102 patients who received multiparametric TRUS (including conventional transrectal ultrasound, shear wave sonoelastography and contrast enhanced ultrasound), multiparametric MRI(including T2 weighted diffusion weighted, and dynamic contrast enhanced MRI) and laboratory tests from April 2016 to May 2018 were retrospectively analyzed. The average age was 66.1 years old, ranging 38.0-85.0 years old. The average PSA was 30.1 ng/ml, ranging 0.4-227.0 ng/ml. The average PSAD was 0.67 ng/ml2, ranging 0.02-4.27 ng/ml2. The pathology results from TRUS guided biopsy or surgical operation were chosen as gold standard. Diagnostic performance including sensitivity, specificity, positive predictive value(PPV), negative predictive value(NPV), accuracy and area under the receiver operating characteristic curve(AUROC)of multiparametric TRUS and multiparametric MRI in prostate cancer were analyzed.@*Results@#There were 62 prostate cancer and 40 BPH patients in our study. Parallel multiparametric TRUS diagnosed 63 prostate cancer and 39 BPH, and multiparametric MRI diagnosed 75 prostate cancer and 27 BPH. The sensitivity, specificity and accuracy of parallel multiparametric TRUS were 98.4%, 70.0% and 87.3%, respectively. And those of multiparametric MRI were 95.2%, 60.0% and 81.4%, respectively. The AUROC of parallel multiparametric TRUS and multiparametric MRI were 0.842 and 0.776, with no significant differences(P=0.208).@*Conclusion@#The diagnostic value of multiparametric TRUS was not inferior to multiparametric MRI in prostate cancer.

8.
Article in Chinese | WPRIM | ID: wpr-871324

ABSTRACT

Objective:To study whether curcumin inhibits the proliferation and promotes the apoptosis of nephroblastoma through activating the miR-192-5p/PI3K/Akt signaling pathway.Methods:CCK-8 assay was used to investigate the effects of curcumin on the proliferation of nephroblastoma SK-NEP-1 cells and the appropriate concentration. The apoptosis rate of SK-NEP-1 cells was detected by V-FITC/PI. Luciferase reporter assay was used to verify the binding activity between miR-192-5p and PI3K. RT-PCR was performed to detect the expression of miR-192-5p at mRNA level. Western blot was used to detect the expression of PI3K and Akt at protein level.Results:Curcumin could significantly inhibit the proliferation of SK-NEP-1 cells and induce cell apoptosis in a dose-dependent manner. RT-PCR results showed that curcumin could significantly increase the expression of miR-192-5p. In addition, miR-192-5p significantly inhibited cell proliferation, induced cell apoptosis, and enhanced the effects of curcumin on the proliferation and apoptosis of SK-NEP-1 cells. Luciferase reporter assay suggested that miR-192-5p could bind to PI3K. Western blot results showed that curcumin down-regulated the expression of PI3K and Akt at protein level by mediating the expression of miR-192-5p.Conclusions:Curcumin could inhibit the proliferation and induce the apoptosis of nephroblastoma cells through mediating the expression of miR-192-5p and further inhibiting the downstream PI3K/Akt signaling pathway.

9.
Chinese Journal of School Health ; (12): 908-910, 2020.
Article in Chinese | WPRIM | ID: wpr-822539

ABSTRACT

Objective@#To investigate the antibiotic resistance spectrum and genetic characteristics of multidrug-resistant Staphylococcus aureus(MDRSA) nasal isolate among primary school students, and to provide a scientific basis for the prevention and control of masal MDRSA resistance and the selection of clincal drugs in children.@*Methods@#Antibiotic susceptibility experiments were performed on all SA isolates of 1 705 primary school students from 8 primary schools in Guangzhou selected by using multistage cluster stratified sampling method. MDRSA antibiotic susceptibility spectrum was analyzed, and the resistant, virulence and immune evasion cluster(IEC) genes detected by polymerase chain reaction(PCR).@*Results@#The prevalence of MDRSA nasal carriage was 20.76%(354/1 705), and the proportion of multidrug resistance among SA isolates was 96.20%(354/368). The predominant resistant antibiotics of MDRSA isolates were penicillin(99.72%), erythromycin(96.33%), clindamycin(90.96%) and teicoplanin(90.11%). Notably, 240(67.80%, 240/354) MDRSA isolates were resistant to more than six antimicrobial categories. And the predominant detection rates of resistant genes were BlaZ(92.66%), Tet(M)(49.72%), virulence genes Tst(25.42%) and IEC genes Sak(92.09%), Hlb(61.58%).@*Conclusion@#We found high prevalence of nasal colonization MDRSA from healthy children. Moreover, MDRSA isolates has a high resistant rate to multiple antibiotics, and the proportion of resistant to ≥6 antimicrobial categories is high.

10.
China Pharmacy ; (12): 2926-2931, 2019.
Article in Chinese | WPRIM | ID: wpr-817470

ABSTRACT

OBJECTIVE: To prepare insoluble anti-tumor drug-loading polymer micelles, and to increase inhibitive effect of insoluble anti-tumor drug. METHODS: Chitosan (CSO) and stearic acid (SA) were used to prepare blank micelles (CSO-SA), then modified with mPEG and folic acid (FA) to prepare PEG-CSO-SA and FA-PEG-CSO-SA. Characteristic functional groups of CSO-SA, PEG-CSO-SA and FA-PEG-CSO-SA were detected by infrared spectroscopy. The morphology of micelles was observed by transmission electron microscopy. The particle size and Zeta potential of micelles were measured by laser particle size analyzer. Osthole (OST) was used as the model drug and drug-loading micelles (FA-PEG-CSO-SA/OST) were prepared by dialysis. MTT assay was used to detect the inhibitory rate of FA-PEG-CSO-SA, OST solution and FA-PEG-CSO-SA/OST to human liver cancer cell HepG2. Half inhibitory concentration (IC50) was calculated. RESULTS: FA-PEG-CSO-SA was successfully prepared. CSO-SA, PEG-CSO-SA, FA-PEG-CSO-SA were oval in shape; particle sizes were (96.01±5.99), (112.93±1.06), (216.01±4.76) nm (n=3) and Zeta potentials were (39.30±1.75), (38.03±2.91), (15.17±2.10) mV (n=3), respectively. Encapsulation efficiency and drug-loading amount of OST in FA-PEG-CSO-SA were (84.47±2.07)% and (16.01±0.90)% (n=3), respectively. The inhibition rates of FA-PEG-CSO-SA to HepG2 cells were<20%. IC50 of OST solution and FA-PEG-CSO-SA/OST to HepG2 cells were (62.08±5.21), (27.49±0.50) μg/mL (n=3), respectively. CONCLUSIONS: Prepared FA-PEG-CSO-SA can significantly increase inhibitive effect of insoluble drug OST to HepG2 cells, and it is expected to become a new anti-tumor drug carrier.

11.
Chinese Journal of Cardiology ; (12): 865-874, 2019.
Article in Chinese | WPRIM | ID: wpr-801013

ABSTRACT

Objective@#To observe the etiology, comorbidities, clinical features and treatment patterns of hospitalized patients with heart failure (HF) in China.@*Methods@#Data were collected prospectively on hospitalized patients with HF who were enrolled in China Heart Failure Center Registry Study from 169 participating hospitals from January 2017 to August 2018. In this cross-sectional study, patients were stratified by left ventricular ejection fraction (LVEF) category: heart failure with reduced ejection fraction (HFrEF, LVEF<40%); heart failure with mid-ranged ejection fraction (HFmrEF, 40%≤LVEF<50%) and heart failure with preserved ejection fraction (HFpEF, LVEF≥50%). The clinical data were collected, including demographic information, diagnosis, signs, electrocardiogram, echocardiography, laboratory tests, and treatment.@*Results@#A total of 31 356 hospitalized patients with HF were included, 19 072 (60.8%) were males and the average age was (67.9±13.6) years old. The common causes of HF were hypertension (57.2%), coronary heart disease (54.6%), dilated cardiomyopathy (14.7%), valvular heart disease (9.2%). The common complications were atrial fibrillation/atrial flutter (34.1%), diabetes (29.2%), and anemia (26.7%). 32.8% of patients had a history of hospitalization for HF within the previous 12 months. There were 11 034 (35.2%) patients with HFrEF, 6 825 (21.8%) patients with HFmrEF and 13 497 (43.0%) patients with HFpEF. Compared with patients with HFpEF, patients with HFrEF had a lower systolic blood pressure ((124.7±21.1)mmHg(1 mmHg=0.133 kPa) vs. (134.9±22.9)mmHg), faster heart rate ((85±19) beats/minutes vs. (81±19)beats/minutes), and higher percentage of New York Heart Association (NYHA) class Ⅳ, smoking, alcohol, left bundle branch block, and QRS time≥130 ms, and higher levels of blood uric acid, BNP, and NT-proBNP (all P<0.05). Compared with patients with HFmrEF and HFrEF, patients with HFpEF were older, more women, and higher comorbidity burden including hypertension, atrial fibrillation/atrial flutter, anemia and chronic obstructive pulmonary disease (all P<0.05). HFmrEF took a mid-position between HFrEF and HFpEF in age, gender, heart rate, systolic blood pressure, hypertension, atrial fibrillation/atrial flutter, anemia, and chronic obstructive pulmonary disease (all P<0.05). Patients with HFmrEF had the highest proportion of coronary heart disease, myocardial infarction and percutaneous coronary intervention (all P<0.05). During hospitalization, loop diuretics were used in 90.2% of patients, and intravenous inotropics were used in 20.4% of patients. The use of ACEI/ARB/ARNI, β blockers and aldosterone receptor antagonists at discharge were 71.8%, 79.1% and 83.6% in HFrEF and 69.9%, 75.5% and 72.4% in HFmrEF, respectively. The use of digoxin at discharge was 25.3% (HFrEF 36.7%, HFmrEF 23.1%, HFpEF 17.0%). The rates of cardiac resynchronization therapy and implantable cardioverter defibrillator in HFrEF were 2.7% and 2.1%.@*Conclusions@#Among the hospitalized patients with HF in China, coronary heart disease and hypertension are the mostly prevalent causes. HFpEF accounts for a large proportion of hospitalized patients with HF. HFrEF, HFmrEF and HFpEF have different etiology and clinical features. In real-world, there are still large gaps in the effective application of the guideline recommended therapies to HF patients, especially the non-pharmacological therapy option, which needs to be improved further in China.

12.
Article in Chinese | WPRIM | ID: wpr-799908

ABSTRACT

Objective@#To observe the effect of low concentration paraquat (PQ) on activation and phenotypic M1/M2 polarization of mouse microglia cells (BV2) .@*Methods@#BV2 cells were used as model, and cultured in vitro were exposed to paraquat at designed concentrations of 0, 0.015, 0.03, 0.06, 0.12, 0.24, 0.48 μmol/L and 0.05 μmol/L 1-methyl-4-phenylpyridinium (MPP+) for 24 h, and cell viability was determined by CCK8 assay. After induced by 0, 0.015, 0.03, 0.06, 0.12 μmol/L PQ and 0.05 μmol/L MPP+ for 24 h, the contents of tumor necrosis factor-α (TNF-α) , interleukin-6 (IL-6) and IL-1β in cell culture supernatant were determined by enzyme-linked inmunosorbent assay (ELISA) . Cell migration ability was determined by transwell. Immunofluorescence (IF) and flow cytometry were used to determine the phagocytic capacity of cells. Designed concentrations of 0, 0.03, 0.06, 0.12 μmol/L PQ and 0.05 μmol/L MPP+ for 24 h, the protein expressions of M1 markers of BV2 (TNF-α, IL-6, IL-1β, Nitric oxide synthase-iNOS, CD86) and M2 markers of BV2 (Arginase type-1 Arg-1 and Mannose recepteor-CD206) were determined by Western Blot after PQ expourse (0, 0.03, 0.06, 0.12 μmol/L) and 0.05 μmol/L MPP+ induction.@*Results@#Compared with 0 μmol/L PQ group, proliferation activity of BV2 cells was significantly increased by 0.03~0.12 μmol/L PQ while inhibited by 0.48 μmol/L PQ (P<0.05) . The cell proliferation activity of cells treated with 0.03 μmol/L PQ was significantly increased in 24 hours (P<0.05) . ELISA showed that TNF-α, IL-6 and IL-1β contents in the cell supernatant of the PQ group were significantly higher than those of 0 μmol/L PQ group, especially in 0.03 and 0.06 μmol/L PQ exposed group (P<0.05) . The results of IF and flow cytometry showed that phagocytic capacity of 0.015, 0.03 and 0.06 μmol/L PQ group was significantly enhanced compared with 0 μmol/L PQ group (P<0.05) . Transwell showed that the cell invasion ability of 0.03, 0.06, 0.12 μmol/L PQ was significantly higher than that of 0 μmol/L PQ group (P<0.05) . Western blot showed that compared with 0 μmol/L PQ group, the expression levels of M1 markers TNF-α, IL-6, IL-1β, iNOS and CD86 were significantly increased in 0.03 and 0.06 μmol/L PQ exposed group, while the expression levels of M2 markers Arg-1 and CD206 protein were decreased in 0.06 and 0.12 μmol/L PQ exposed group (P<0.05) .@*Conclusion@#Low concentration PQ can abnormally activate BV2 cell, making the transformation of BV2 cell into pro-inflammatory M1 type and inhibiting its transformation into anti-inflammatory M2 type.

13.
Chinese Journal of Geriatrics ; (12): 962-966, 2019.
Article in Chinese | WPRIM | ID: wpr-797870

ABSTRACT

Objective@#To analyze the clinical and pathological characteristics of heart failure with preserved ejection fraction(HFpEF)in advanced elderly patients.@*Methods@#Systematic anatomical data from pathology database of Beijing Hospital from April 1969 to October 2013 were retrospectively analyzed.The 154 HFpEF patients aged(85.7±7.4)years with left ventricular ejection fractions(LVEF)≥50%, and 49 patients aged(82.8±7.8)years who had heart failure with reduced LVEF ≤40%(HFrEF)were included.Clinical feature and pathological changes of heart and other organs were compared between patients with HFpEF and HFrEF, and between groups aged less 80 years versus over 80 years in HFpEF patients.@*Results@#The parameters were higher in HFpEF group versus in HFrEF group as follows: the average age of patients(85.7±7.4 vs.82.8±7.8 years, P=0.017), hypertension(80.5% or 124 cases vs.26.5% or 13 cases, P<0.001), diabetes mellitus(58.4% or 90 vs.20.4% or 10 cases, P<0.001), atrial fibrillation(65.6% or 101 cases vs.12.2% or 6 cases, P<0.001)and chronic obstructive pulmonary disease(COPD)(26.6% or 41 cases vs.4.1% or 2 cases, P=0.001). As compared with HFpEF patients aged 61-85 years group, the same HFpEF patients aged 86-99 years group had significantly increased proportion of atrial fibrillation(P=0.046), of COPD(P=0.002), of senile degenerative heart valvular disease(P=0.009), of chronic myocardial ischemia(P=0.027), of mini-focal old myocardial infarction(P=0.041)and of emphysema(P=0.005).@*Conclusions@#The proportion of patients with HFpEF increases along with ageing.Atrial fibrillation and COPD are common geriatric co-morbidities in the elderly especially advanced elderly HFpEF patients.The patients are prone to complicated with atrial fibrillation and COPD, and often have chronic myocardial ischemia.Therefore, we should pay attention to the influences of the above diseases on elderly patients with HFpEF.

14.
Chinese Journal of Geriatrics ; (12): 962-966, 2019.
Article in Chinese | WPRIM | ID: wpr-791606

ABSTRACT

Objective To analyze the clinical and pathological characteristics of heart failure with preserved ejection fraction (HFpEF)in advanced elderly patients.Methods Systematic anatomical data from pathology database of Beijing Hospital from April 1969 to October 2013 were retrospectively analyzed.The 154 HFpEF patients aged(85.7± 7.4)years with left ventricular ejection fractions(LVEF) ≥50%,and 49 patients aged(82.8± 7.8)years who had heart failure with reduced LVEF ≤ 40% (HFrEF)were included.Clinical feature and pathological changes of heart and other organs were compared between patients with HFpEF and HFrEF,and between groups aged less 80 years versus over 80 years in HFpEF patients.Results The parameters were higher in HFpEF group versus in HFrEF group as follows:the average age of patients(85.7±7.4 vs.82.8±7.8 years,P=0.017),hypertension(80.5% or 124 cases vs.26.5% or 13 cases,P <0.001),diabetes mellitus (58.4% or 90 vs.20.4% or 10 cases,P<0.001),atrial fibrillation(65.6% or 101 cases vs.12.2% or 6 cases,P<0.001)and chronic obstructive pulmonary disease(COPD)(26.6% or 41 cases vs.4.1% or 2 cases,P=0.001).As compared with HFpEF patients aged 61-85 years group,the same HFpEF patients aged 86-99 years group had significantly increased proportion of atrial fibrillation(P =0.046),of COPD(P =0.002),of senile degenerative heart valvular disease(P =0.009),of chronic myocardial ischemia(P =0.027),of mini-focal old myocardial infarction (P =0.041) and of emphysema (P =0.005).Conclusions The proportion of patients with HFpEF increases along with ageing.Atrial fibrillation and COPD are common geriatric co-morbidities in the elderly especially advanced elderly HFpEF patients.The patients are prone to complicated with atrial fibrillation and COPD,and often have chronic myocardial ischemia.Therefore,we should pay attention to the influences of the above diseases on elderly patients with HFpEF.

15.
Article in Chinese | WPRIM | ID: wpr-804791

ABSTRACT

Objective@#To investigate the effects of Paraquat on neural stem cell proliferation in vitro and explore the its mechanism based on DNA methylation pathway.@*Methods@#Nestin, β-tubulin III, and glial fibrillary acidic protein (GFAP) were detected by indirect immunofluorescence assay to evaluate self renewal and differentiation potentia of ReNcell CX human neural stem. The cells were treated with terminal concentrations of 0, 5, 25, 50, and 100μmol/L PQ for 24 hours, and the cells were induced by 50 μmol/L PQ for different time (6, 12, 24, 48 h). Cell viability was determined by MTT assay. The proliferation of neural stem cells was evaluated using Sox2/Brdu and Nestin/Brdu double immunofluorescence staining. The global DNA methylation level was assayed by MethyflashTM methylated DNA Quantification kit. The expression levels of Dnmts mRNA and protein were analyzed by quantitative reverse transcription polymerase chain reaction(qRT-PCR) and Western blot, respectively.@*Results@#Immunofluorescence showed that nestin was primarily expressed in proliferative neural stem cell and peotein biomarkers (β-tubulin III, GFAP) for neuron and astrocyte were expressed in differentiated cells. MTT assay showed PQ induced cell survival rate decrease in a time and dose dependent manner. Double immunfluorescence staining of cells showed colocalization of Sox2 and Brdu. The percentage of Brdu/Sox2 positive cells was significantly lower in the PQ-exposed (25, 50, 100μmol/L PQ treatment) groups compared to control (P<0.05); Meanwhile, The percentage of Brdu/Nestin positive cells was also significantly lower in the PQ-exposed(50,100μmol/L PQ treatment) groups compared to control (P<0.05). The results of global DNA methylation revealed a significant decrease in PQ-exposed groups (P<0.05). Western blot showed that compared with control group, the protein and mRNA levels of Dnmt1, Dnmt3a in PQ-exposed group were significantly decreased (P<0.05), but there was a significant increase in expression level of Dnmt3b in 50, 100 μmol/L PQ-treated group(P<0.05).@*Conclusion@#Paraquat could inhibite the proliferation of human neural stem cells through reducing the level of DNA methylation reaction by suppressing the protein expression and transcription of DNA methylated transferase(Dnmts).

16.
Article in Chinese | WPRIM | ID: wpr-754559

ABSTRACT

Objective To explore the effect of PDCA [plan (P), design (D), check (C), act (A)] cycle on primary cardiopulmonary resuscitation (CPR) training for medical assistants in hospitals. Methods PDCA cycle was used to enhance continuous quality improvement (CQI) of team members to carry out brain storming to find out the root causes of the training difficulty, and directing to the 3 main root causes: lack of emergency rescue consciousness, without systematic training system and improper education procedure, it was proposed to arrange 3 great strategies: emergency rescue knowledge training, design of systematic training system and proper arrangement of training process. The changes of medical assistants' subjective willingness to perform the first aid, the accurate rates of answering questions on CPR location, frequency, depth, ratio of compression to breathing and awareness degree of CPR before and after training were observed. Results After training, the medical assistants' subjective willingness to perform the first aid was higher than that before training [91.7% (121/132) vs. 2.3% (3/132), P<0.05]. The accurate answer rates on questions concerning CPR basic knowledge, such as location, frequency, depth and compression-breathing ratio had been greatly improved after training compared with those before training [location: 65.2% (86/132) vs. 4.5% (6/132), frequency: 40.2% (53/132) vs. 0 (0/132), depth: 90.2% (119/132) vs. 0 (0/132), compression-breathing ratio: 84.8% (112/132) vs. 1.5% (2/132 ), all P<0.05]. After training, the percentage of medical assistants having very familiar awareness degree of CPR was significantly higher than that before training [65.2% (86/132) vs. 3.0% (4/132), P<0.05]. Conclusion Via CPR training PDCA cycle, not only the efficiency of CPR training management is greatly improved, but also the training effect of participants is significantly elevated.

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Journal of Practical Radiology ; (12): 515-518, 2019.
Article in Chinese | WPRIM | ID: wpr-752384

ABSTRACT

Objective Toanalyzetheimagingfeaturesofmedulloepitheliomaforfurtherunderstanding.Methods Theimaging findingsof12casesofmedulloepitheliomaprovedbypathologywereanalyzedretrospectively.Results Thelesionswerelocatedin cerebralhemisphere(6),cerebellum (3),ventricularsystem (3),andalloftheminvolvedbothgrayandwhitematter.Thefeatures includedlargegrosstumorvolume,clearboundaryandperitumoraledema(8/12).Othersincludedcystic-solidlesions(11/12),completelysolidlesion (1/12),andiso-orslightlyhyper-densitywithcalcificationonCTscan.ThetypicalfeatureofMRIwas "mid-lakeisland"sign,and solidcomponentshowediso-orhypo-intensityonT1WI,isoorhyper-intensityonT2WIwithhemorrhageandnecrosis,aswellasthe tumorshowedobviousheterogeneousenhancementaftercontrast.Cystcomponentshowedthin-wallring-enhancement.Conclusion Thetypicalfeatureofthemedulloepitheliomaisthe "mid-lakeisland"sign.Thetumorhasalargevolume,andthe majorityshow cystic-solidlesions.Aboveall,medulloepitheliomashouldbeconsideredifthereisasolid-cysticlesionwithclearboundaryatchildren andadolescents.

18.
Article in Chinese | WPRIM | ID: wpr-751718

ABSTRACT

As a kind of long non-coding RNAs (lncRNAs),small nucleolar RNA host gene 15 (SNHG15) is located on chromosome 7.In recent years,studies have shown that lncRNA SNHG15 is over expressed in various types of cancers such as glioma,thyroid cancer,breast cancer,lung cancer,gastric cancer,colorectal cancer,liver cancer,renal carcinoma,pancreatic cancer,osteosarcoma,and it can promote the proliferation,invasion,metastasis of malignant tumors and lead to poor prognosis of tumor patients through different signal pathways.

19.
Article in Chinese | WPRIM | ID: wpr-742791

ABSTRACT

OBJECTIVE To discuss the correlation between effectual time and the curative effect in patients with all frequency descending sudden deafness. METHODS According to effectual time,the subjects were divided into first week effectual group and second week effectual group and the curative effect of each group was compared. RESULTS In patients with flat descent sudden deafness, the curative rate of the first week effectual group was higher than that of the second week effectual group, but there was no significant difference between the two groups(χ2=1.599, P =0.206). Meanwhile, the total significant effective rate of the first week effectual group was higher than that of the second week effectual group, without obvious difference between the two groups(χ2=0.124, P =0.725). Furthermore, in patients with total deafness type of sudden deafness, the curative rate of the first week effectual group was higher than that of the second week effectual group, showing no remarkable difference between the two groups(χ2=2.493, P =0.114). Besides, there was no remarkable difference in the comparison of the total significant effective rate (χ2=2.308, P =0.129), which was higher in the first week effectual group than that in the second week effectual group. CONCLUSION The course of treatment should be at least 2 weeks in patients with all frequency descending sudden deafness after onset.

20.
Chinese Journal of Cardiology ; (12): 438-443, 2018.
Article in Chinese | WPRIM | ID: wpr-810005

ABSTRACT

Objective@#To determine the frequency and extent of left ventricular amyloid deposition in patients aged over 85 years with heart failure and preserved ejection fraction (HFpEF).@*Methods@#A total of 43 patients aged 85 to 100 years old were enrolled in this study based on the autopsy database of Beijing Hospital from February 1, 2003 to October 31, 2016. The frequency and extent of left ventricular amyloid deposition and myocardial fibrosis were determined in left ventricular specimens from patients with antemortem diagnosis of HFpEF without clinically apparent amyloid (n=28) and from control subjects (n=15) post Congo red staining and Masson's trichrome staining. Kappa test was used to evaluate the consistency of the myocardial amyloidosis and fibrosis.@*Results@#The heart weight of the patients in HFpEF group and in control group were similar((452.7±107.7)g vs. (415.0±70.8)g, t=-1.218, P=0.23)). Positive Congo-red staining was found in 24 examples (24/28) in HFpEF group and 5 examples (5/15) in the control group; severe amyloid deposition was found in 7 examples (7/28) in HFpEF group, but not in the control group. Amyloid deposition was more severe in HFpEF group than in control group (χ2=12.205, P<0.01). Masson's trichrome staining evidenced moderate to severe fibrosis in 19 cases (19/28) in HFpEF group and 8 cases (8/15) in control group (χ2=1.019, P=0.35). A consistent evaluation of the degree of myocardial fibrosis and the degree of myocardial amyloid deposition in all selected participants was performed and results showed that these two parameters were not consistent (Kappa value=0.2, P=0.820).@*Conclusion@#Amyloid deposition is common in the elderly patients with heart failure and preserved ejection fraction, suggesting that myocardial amyloidosis may be related to the development of HFpEF. There is no significant correlation between myocardial amyloidosis and myocardial fibrosis in this cohort.

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