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1.
Article in Chinese | WPRIM | ID: wpr-883480

ABSTRACT

Objective:To analyze the causes of death of elderly inpatients,so as to provide direction for the precaution of geriatrics.Methods:The first page data of hospitalized medical records of elderly inpatients in medical department in the Second Hospital of Dalian Medical University from 2102 to 2019 were extracted, and the causes of death were analyzed. The statistical analysis was performed by Excel and SPSS 21.0 statistical software.Results:The number of deaths of elderly inpatients in medical department from 2012 to 2019 was 5 249. The proportion of deaths in ICU was 34.43%(1 807/5 249), in oncology department was19.03%(999/5 249), and in cardiovascular department was12.08%(634/5 249). The average age was (78.52 ± 7.82) years. Besides, the age of men was younger than women: (78.18 ± 8.00) years vs. (79.02 ± 7.52) years, and the differences was statistically significant ( P<0.01). Men(59.1%, 3 099/5 249) were more than women (40.96%, 2 150/5 249). The largest number of deaths was in the age of 75-84 years (42.56%, 2 234/5 249). The number of cases with combined above five diseases was 4 552(86.72%, 4 552/5 249). The top three causes of deaths of elderly inpatients in medical department from 2012 to 2019 were cardiocerebrovascular diseases (27.21%, 1 428/5 249), malignant tumor (25.74%, 1351/5 249) and respiratory system diseases (22.10%, 1160/5 249). From 2012 to 2015, the top three causes of deaths were malignant tumor, cardiocerebrovascular diseases and respiratorysystem diseases. From 2016 to 2019,the top three causes of deaths were cardiocerebrovascular diseases, malignant tumor, and respiratory system diseases. The most common cause in cardiocerebrovascular diseases of death was coronary heart disease (51.47%,735/1 428), cerebrovascular disease (43.70%,624/1 428),and hypertension(4.34%, 62/1 428). Among the patients with malignant tumor death, first cause of death waslung malignant tumor (37.53%, 507/1 351), the others in turn were gastric carcinoma (11.10%,150/1 351) and intestinal cancer (11.10%,150/1 351). Among the patients with respiratory system diseases, first cause of death was pulmonary infection (69.66%,808/1 160), the others in turn were chronic obstructive pulmonary disease (15.43%, 179/1 160) and interstitial lung disease (5.09%, 59/1 160). Conclusions:The average age of elderly inpatients in medical department is (78.52 ± 7.82) years. The death age of male is less than that of female, and the number is slightly more than that of female. The top three causes of deaths of elderly inpatients in medical department are cardiocerebrovascular diseases, malignant tumor, respiratorysystem diseases. From 2012 to 2015 the first cause of deaths is malignant tumor. From 2016 to 2019, the cardiocerebrovascular diseases rise to the first.

2.
Clinical Medicine of China ; (12): 449-454, 2020.
Article in Chinese | WPRIM | ID: wpr-867555

ABSTRACT

Objective:To investigate the efficacy of peritoneal perfusion combined with intravenous and oral chemotherapy in the treatment of gastric cancer with peritoneal metastasis and its correlation with prognosis.Methods:The clinical data of 142 patients with peritoneal metastasis of gastric cancer admitted to the Affiliated Hospital of Xuzhou Medical University from March 2012 to June 2019 were retrospectively analyzed.According to different treatment schemes, the patients were divided into observation group (47 cases treated with tegafur capsule orally+ docetaxel+ cisplatin combined with recombinant human tumor necrosis factor intraperitoneal perfusion) and control group (oral administration of tegafur capsule+ oxaliplatin). The clinical efficacy and prognostic factors were compared between the two groups.Results:The short-term efficacy after two courses of chemotherapy: the effective rate was 44.7% (21/47) in the observation group and 8.4% (8/95) in the control group, the difference was statistically significant (χ 2=25.438, P<0.001); the disease control rate was 97.9% (46/47) in the observation group and 60.0% (57/95) in the control group, the difference was statistically significant (χ 2=22.639, P<0.001). Long term efficacy: the progression free survival time of the observation group was higher than that of the control group (6.50 months vs.3.83 months, χ 2=16.399, P<0.001); the total survival time of the observation group was higher than that of the control group (15.60 months vs.10.83 months, χ 2=9.219, P=0.002). Univariate analysis showed that ascites volume, chemotherapy, palliative surgery, liver metastasis, Lauren classification and Her-2 expression were related to prognosis (all P<0.05); there was no significant difference in cumulative survival rate of different gender, age and ECOG score (all P>0.05). Multivariate analysis showed that liver metastasis ( HR=1.996, 95% CI=1.194-3.338, P=0.008 ), Lauren type ( HR=1.979, 95% CI=1.265-3.094, P=0.003 ), Her-2 expression ( HR=3.872, 95% CI=2.202-6.808, P<0.001 ), chemotherapy regimens(whether combined with intraperitoneal chemotherapy) ( HR=1.826, 95% CI=1.046-3.188, P=0.034 ) and abdomina volume ( HR=2.785, 95% CI=1.644-4.718, P<0.001 ) were independent risk factor for the prognosis of patients. Conclusion:Intraperitoneal perfusion combined with intravenous and oral administration has a good clinical effect in the treatment of peritoneal metastasis of gastric cancer, which can effectively improve the clinical symptoms and improve the survival rate of patients.The presence or absence of liver metastasis, Lauren classification, Her-2 expression, chemotherapy method (combined with intraperitoneal perfusion or not) and ascites volume are independent risk factors for the prognosis of peritoneal metastasis of gastric cancer.

3.
Article in Chinese | WPRIM | ID: wpr-865632

ABSTRACT

Objective:To study the diagnosis and treatment of osteoporotic fractures in the elderly in two third Grade A hospitals in Shenyang and Dalian, and to provide scientific basis for prevention and treatment of osteoporotic fractures in Dalian and Shenyang.Methods:Patients of osteoporotic fractures over 60 years old from January 2015 to December 2015 in the Second Hospital of Dalian Medical University and the People′s Hospital of Liaoning Province were chosen, and the basic characteristics, fracture site, the number of fracture site, diagnosis treatment and secondary prevention of osteoporosis fractures of them were analyzed.Results:Among the patients of osteoporotic fractures over 60 years old in the hospitals of Shenyang and Dalian, women were more than men ( P = 0.00). The predilection sites of elderly osteoporotic fractures in two hospitals were both followed by the hip, spine, ulnar and radial distal, proximal humerus. The rates respectively were 38.26%(295/771), 34.63% (267/771), 9.34%(72/771), 5.71%(44/771). The rate of fracture-again was 10.89%(84/771). The rates of in-hospital diagnosis, in-hospital treatment and treatment of discharged medical advice among osteoporosis were 13.88%(107/771), 24.64%(190/771) and 18.81%(145/771). There were 0.65% (5/771) patients who had diagnosis of osteoporosis, basic osteoporosis treatment (vitamin D 3 and calcium) and anti-osteoporosis treatment in both in-hospital and discharged medical advice. Conclusions:The rates of in-hospital diagnosis, in-hospital osteoporosis treatment and anti-osteoporosis treatment in discharged medical advice are both very low in the two third Grade A hospitals. The secondary prevention of osteoporosis fractures in the elderly has not been taken attention, and the situation of prevention and treatment are serious.

4.
Article in Chinese | WPRIM | ID: wpr-828447

ABSTRACT

Lonicerae Japonicae Flos has a long history of heat-clearing and detoxifying effect. The description of its efficacy in Chinese Pharmacopoeia of past dynasties is relatively stable, and it is an excellent carrier for the study of efficacy markers. Guided by the theory of systematic traditional Chinese medicine, heat-clearing and detoxifying effect efficacy system of Lonicerae Japonicae Flos was taken as an example in this study to clarify the elements(active ingredients) of Lonicerae Japonicae Flos in heat-clearing and detoxifying efficacy system, determine the boundary(signal pathway), establish the structure(system dynamics model), identify the system functions corresponding to pharmacology, efficacy and effects(heat-clearing and detoxifying effect), and explore the application of system dynamics model in the discovery of efficacy markers of traditional Chinese medicine. In this paper, the dynamic models of interleukin 1(IL-1) and interleukin 6(IL-6) in vivo were established to predict the expression of related factors in IL-1 and IL-6 signaling pathways of different components and their combinations in Lonicerae Japonicae Flos by dynamic network, so as to find the effective markers of heat-clearing and detoxification of Lonicerae Japonicae Flos. The results showed that the lower the concentration of chlorogenic acid, the higher the inhibition rate of Jun N-terminal kinase(JNK) at downstream of IL-1 by the combination of chlorogenic acid and linalool; the higher the concentration of luteolin in IL-6 pathway, the higher the inhibition rate of C-reactive protein(CRP) at downstream of IL-6 by the combination of chlorogenic acid and luteolin. It revealed that the potential efficacy markers of Lonicerae Japonicae Flos in heat-clearing and detoxifying effect based on IL-1 signaling pathway were chlorogenic acid and linalool, and the potential efficacy markers of Lonicerae Japonicae Flos in heat-clearing and detoxifying effect based on IL-6 signaling pathway were chlorogenic acid and luteolin. This study provided methodological guidance for the discovery of efficacy markers of traditional Chinese medicine.


Subject(s)
Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Hot Temperature , Lonicera , Medicine, Chinese Traditional , Quality Control
5.
Journal of Forensic Medicine ; (6): 157-160, 2018.
Article in Chinese | WPRIM | ID: wpr-692401

ABSTRACT

Objective To explore the effect of benzidine test and related reagents on DNA analysis of bloodstain. Methods A total of 970 bloodstain filter paper samples with 1μL venous blood were collected, and 10 of them acted as control samples. After benzidine test and related reagent processing, DNA of 960 samples was extracted by Chelex-100 and silica bead methods and then multiplex amplified by AmpF(e)STRTM IdentifilerTM Plus PCR kits. The results of STR typing were compared between different groups. Results DNA were extracted immediately after benzidine test. Totally STR loci (3.80±1.34) were detected by silica bead method, while no STR loci were obtained by Chelex-100 method. Thirteen sam-ples (21.7%) with whole STR typing results were obtained by drying after benzidine test, and the STR locus number (12.90±1.49) which obtained by silica bead method was much higher than by Chelex-100 method (4.70±1.96) (P<0.05). When DNA was extracted immediately after the addition of glacial acetic acid, the STR locus number was (9.40±2.09) by silica bead method, but no STR typing result was obtained by Chelex-100 method. All 15 STR loci could be obtained by only adding glacial acetic acid after drying and only adding tetramethylbenzidine alcoholization liquid or 3% hydrogen peroxide liquid. Conclusion Benzidine test has significant influence on DNA analysis of bloodstain. The Chelex-100 method is not suitable for the DNA extraction of bloodstain after benzidine test. Drying after benzidine test and silica bead methods can effectively enhance the STR locus number of bloodstain.

6.
Article in Chinese | WPRIM | ID: wpr-710243

ABSTRACT

AIM To investigate the effect of β-cyclodextrin-assisted extraction on Cassiae Semen.METHODS The chemical constituents in aqueous extract and β-cyclodextrin extract determined and analyzed by UPLC and principal component analysis had their antioxidant activities tested by six methods (protective effects on lipid peroxidation injuries induced by spontaneous liver,CCl4,H2 O2,FeSO4-vitamin C,and scavenging effects on DPPH,hydroxyl free radicals).RESULTS Compared with aqueous extract,the component content and antioxidant activity of β-cyclodextrin extract were increased by 10.476% and 80.88%,respectively.CONCLUSION β-Cyclodextrin can effectively enhance the component extraction rate and antioxidant activity of Cassiae Semen.

7.
Article in Chinese | WPRIM | ID: wpr-852985

ABSTRACT

Objective: To compare the differences between Lonicera Japonica Flos and Lonicera Flos by establishing HPLC fingerprint and calculating the similarity. Methods: The columns was Phenomenex Luna 5 μm C18 (2) 100 A, 250 mm×4.6 mm; The column temperature was 40℃. The mobile phase was acetonitrile-0.5% phosphoric acid, the flow rate was 1 mL/min, and the wavelength was 350 nm. Results: HPLC fingerprint of Lonicera Japonica and similarity evaluation by screening large peak integration were established. The similarity of 12 batches of Lonicera Japonica Flos were all above 0.95, and four batches of Lonicera Flos were less than 0.80. Conclusion: HPLC fingerprint profiles under 350 nm can reflex the differences between Lonicera Japonica Flos and Lonicera Flos effectively; Similarity evaluation by screening large peak integration shows the tiny differences of chemical component.

8.
Chinese Journal of Trauma ; (12): 88-92, 2017.
Article in Chinese | WPRIM | ID: wpr-672982

ABSTRACT

Objective To investigate the effect of rehabilitation nursing in perioperative period of elderly patients with femoral neck fractures undergone supercapsular percutaneously assisted total hip (SuperPATH) arthroplasty.Methods A retrospective cohort analysis was made on 30 patients treated by total hip arthroplasty through the SuperPATH approach from January 2016 to July 2016.There were seven males and 23 females,aged 75-91 years (mean,77 years).Nursing methods contained application of pluralistic education before operation,application of body position management,psychologic support joint pain and sleep multidimensional strengthening nursing intervention and dislocation nursing after operation,and recovery training.Self-rating anxiety scale (SAS),self-rating scale of sleep (SRSS),Barthel index and Harris hip score were used to compare clinical manifestations before and after treatment.Results SAS score was 42.5-66.3 points [(50.0 ± 6.2) points] one day before operation,compared to 33.8-53.8 points [(41.5 ± 5.2) points] five day after operation (P < 0.05).SRSS score was 24-37 points [(29.9 ±3.1) points] one day before operation,compared to 14-34 points [(23.2 ± 5.3) points] five day after operation (P < 0.05).Barthel index was 20-40 points [(38.5 ± 4.4) points] one day before operation,was 35-55 points [(49.7 ± 6.3)points] two day after operation and was 55-70 points [(63.5 ± 5.1)] points five day after operation,showing significant differences (P < 0.05).Harris hip score was 4-25 points [(14.8 ±4.2)points] one day after operation,was 59-75 points[(67.3 ± 5.1) points] two day after operation and was 66-85 points [(79.2 ± 4.3) points] two weeks after operation,showing significant differences (P < 0.05).All incision healed primarily.No complications occurred.Conclusion Perioperative rehabilitation nursing of minimally invasive SuperPATH arthroplasty is effective in alleviating patients' anxiety,improving sleep status and self-care ability,enhancing postoperative rehabilitation effect and reducing risk of in-hospital complications.

9.
China Pharmacy ; (12): 1718-1720, 2016.
Article in Chinese | WPRIM | ID: wpr-672940

ABSTRACT

OBJECTIVE:Tosum up the condition of theoretical teaching and experimental teaching of the Processing of Chinese Materia,and to provide referencefor the reform of teaching model of the Processing of Chinese Materia. METHODS:Teaching soft-ware,teaching video and other modelrn teaching methods were used to enrich the content in theory teaching;linking theory with practice was used to stimulate students'interest in learning;scientific research achievement was introduced in teaching to train stu-dents' scientific research thinking;the teaching model of traditional confirmative experiment teaching was reformed by increasing de-signing experiment hours and score;the traditional usual performance evaluation method was changed by replacing with evaluation method of formative,and it was used for evaluation. RESULTS:The students not only learned theoretical knowledge,but also cul-tivated their ability to analyze and solve problems,changing from passive learning to active learning,so that it has made satisfacto-ry teaching effect. CONCLUSIONS:The traditional concept should be changed in teaching of the Processing of Chinese Materia, paying attention to the combination of scientific research and teaching;improve the situation of the designing experiment in the present undergraduate experimental teachingto stimulate students interest in learning,enhance students'practical ability,and im-prove the quality of teaching.

10.
Article in Chinese | WPRIM | ID: wpr-672253

ABSTRACT

This study was aimed to investigate the influence on component content indexes,which included chlorogenic acid and luteolin of honeysuckle by the absorption of chemical insecticide thiamethoxam.High-performance liquid chromatography (HPLC) method was used in the analysis of content determination of component content indexes of honeysuckle samples by different concentrations of thiamethoxam.SPSS was used in the statistical analysis.The results showed that compared to samples from the blank control group,the content of chlorogenic acid had the increasing tendency in the honeysuckle groups with different concentrations of thiamethoxam.However,there was no significant difference among different experiment groups.There was no significant difference on luteolin among honeysuckle groups with different concentrations of thiamethoxam and the blank control group.It was concluded that at the recommended dose and high-powered dose of thiamethoxam,there was some influence on the content of chlorogenic acid.However,there was no significant effect on the content of luteoloside.And the quality scores of both contents were within the range defined in the Chinese Pharmacopoeia(2010 edition).

11.
Article in English | WPRIM | ID: wpr-636929

ABSTRACT

DNA methyl-transferase 3A (DNMT3A) mutation has recently been identified as an independent risk factor for patients with acute myeloid leukemia (AML). However, reports are scanty on its rate and subsequent impact on patients with acute lymphoblastic leukemia (ALL), especially in Chinese population. In this study, we investigated the incidence and prognostic implication of DNMT3A mutation in 57 Chinese adult ALL patients. A total of 3 (5.3%) T-ALL cases were found to have the DNMT3A R882H mutation, which was significantly greater than that found in B-ALL subtype (P=0.048). The patients aged between 40 and 60 years old had higher mutation rate than other age groups (P=0.042). Patients with DNMT3A mutation had shorter overall survival (OS) than their wild-type counterparts. Our study demonstrated that Chinese ALL patients might develop DNMT3A mutation, which exerts a negative impact on their prognosis. These findings might help in risk stratification and treatment choice for Chinese ALL patients.

12.
Chinese Medical Journal ; (24): 520-527, 2015.
Article in English | WPRIM | ID: wpr-357968

ABSTRACT

<p><b>BACKGROUND</b>We investigated possible biomarkers for endometriosis (EM) using the ClinProt technique and proteomics methods.</p><p><b>METHODS</b>We enrolled 50 patients with EM, 34 with benign ovarian neoplasms and 40 healthy volunteers in this study. Serum proteomic spectra were generated by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MS) combined with weak cationic exchange (WCX) magnetic beads. Possible biomarkers were analyzed by a random and repeat pattern model-validation method that we designed, and ClinProtools software, results were refined using online liquid chromatography-tandem MS.</p><p><b>RESULTS</b>We found a cluster of 5 peptides (4210, 5264, 2660, 5635, and 5904 Da), using 3 peptides (4210, 5904, 2660 Da) to discriminate EM patients from healthy volunteers, with 96.67% sensitivity and 100% specificity. We selected 4210 and 5904 m/z, which differed most between patients with EM and controls, and identified them as fragments of ATP1B4, and the fibrinogen alpha (FGA) isoform 1/2 of the FGA chain precursor, respectively.</p><p><b>CONCLUSIONS</b>ClinProt can identify EM biomarkers, which - most notably - distinguish even early-stage or minimal disease. We found 5 stable peaks at 4210, 5264, 2660, 5635, and 5904 Da as potential EM biomarkers, the strongest of which were associated with ATP1B4 (4210 Da) and FGA (5904 Da); this indicates that ATP1B4 and FGA are associated with EM pathogenesis.</p>


Subject(s)
Adolescent , Adult , Biomarkers , Blood , Endometriosis , Blood , Diagnosis , Female , Humans , Middle Aged , Peptides , Blood , Proteomics , Methods , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization , Young Adult
13.
Article in English | WPRIM | ID: wpr-331063

ABSTRACT

DNA methyl-transferase 3A (DNMT3A) mutation has recently been identified as an independent risk factor for patients with acute myeloid leukemia (AML). However, reports are scanty on its rate and subsequent impact on patients with acute lymphoblastic leukemia (ALL), especially in Chinese population. In this study, we investigated the incidence and prognostic implication of DNMT3A mutation in 57 Chinese adult ALL patients. A total of 3 (5.3%) T-ALL cases were found to have the DNMT3A R882H mutation, which was significantly greater than that found in B-ALL subtype (P=0.048). The patients aged between 40 and 60 years old had higher mutation rate than other age groups (P=0.042). Patients with DNMT3A mutation had shorter overall survival (OS) than their wild-type counterparts. Our study demonstrated that Chinese ALL patients might develop DNMT3A mutation, which exerts a negative impact on their prognosis. These findings might help in risk stratification and treatment choice for Chinese ALL patients.


Subject(s)
Adolescent , Adult , Aged , Asian Continental Ancestry Group , Genetics , China , DNA (Cytosine-5-)-Methyltransferases , Genetics , Female , Humans , Male , Middle Aged , Mutation , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma , Genetics , Pathology , Prognosis , Survival Analysis , Young Adult
14.
Article in Chinese | WPRIM | ID: wpr-237678

ABSTRACT

The paper is aimed to establish a method of residue analysis for thiamethoxam and to study its degradation dynamic and final residue and its standard of safe application of thiamethoxam on Lonicera japonica. Samples extracted with methanol by ultrasonication were purified with dichloromethane by liquid-liquid extraction and SPE column and analysed by HPLC-UV. The results showed that average rate was 84.91%-94.44% and RSD 1.74%-4.96% with addition of thiamethoxam in respectively diverse concentration, which meets inspection requirement of pesticide residue. Two kinds of dosages of thiamethoxam were treated- varying from recommended dosage (90 g x hm(-2)) to high dosage (135 g x hm(-2)), Results of two years test showed that thiamethoxam was degraded more than 90% seven days after application and the half - life period of thiamethoxam was 1.54-1.66 d. The digestion rate of thiamethoxam was fast in the L. japonica. The recommended MRL of thiamethoxam in the L. japonica is 0.1 mg x kg(-1), the dosage of 25% thiamethoxam WDG from 90-135 g x hm(-2) is sprayed less than three times a year on L. japonica and 14 days is proposed for the safety interval of the last pesticide application's and harvest's date.


Subject(s)
Agriculture , Methods , Reference Standards , Chromatography, High Pressure Liquid , Flowers , Chemistry , Parasitology , Half-Life , Insect Control , Methods , Reference Standards , Insecticides , Chemistry , Lonicera , Chemistry , Parasitology , Neonicotinoids , Nitro Compounds , Chemistry , Oxazines , Chemistry , Pesticide Residues , Chemistry , Plant Diseases , Parasitology , Thiazoles , Chemistry
15.
Journal of Leukemia & Lymphoma ; (12): 84-87,91, 2014.
Article in Chinese | WPRIM | ID: wpr-686507

ABSTRACT

Objective To investigate the expression and prognostic value of Ikaros6 in adult T-cell acute lymphoblastic leukemia(T-ALL) patients.Methods The RNA was extracted from mononuclear cells of bone marrow in 74 adult T-ALL patients.The expression of Ikaros6 was examined by reverse transcription-PCR,and the results were confirmed by sequencing.Clinical features and prognosis were analyzed based on clinical data.Results In 74 T-ALL patients,the incidence rate of Ikaros6 was 21.6 % (16/74).Extramedullary infiltrations were occurred often (x2 =4.084,P =0.043),had higher WBC (103.15 × 109/L vs 15.60×109/L,t =0.214,P =0.831),more severe anemia (75.95 g/L vs 107.00 g/L,t =1.504,P =0.142) and lower platelet count (26.0×109/L vs 67.0×109/L,t =1.421,P =0.164) in patients with Ikaros6 positive.Meanwhile Ikaros6-positive patients had inferior survival and were increased risk of relapse as compared with the Ikaros6-negative patients.Conclusions The incidence of Ikaros6 is high in adult T-ALL patients.Ikaros6-positive patients are more likely to have extramedullary infiltration and higher WBC,meanwhile they had inferior survival and increased risk of relapse.Thus Ikaros6 may be served as a valuable factor for risk stratification and prognosis evaluation in adult T-ALL patients.

16.
Chinese Journal of Biotechnology ; (12): 1660-1668, 2014.
Article in Chinese | WPRIM | ID: wpr-345557

ABSTRACT

Infectious bursal disease virus (IBDV) VP4 plays an important role in immunosuppression of host. In order to develop monoclonal antibodies (McAbs) against VP4, we vaccinated BALB/c mice with His-VP4, screened and subcloned positive clones. We established 4 hybridoma cell lines that stably secreted McAbs against VP4 and named these cell lines 3B3, 3H11, 4C8 and 4G6, respectively. We tested the dissociation constant (Kd) of these McAbs, and found that their K(d)s were 4.61 x 10(-11), 1.71 x 10(-10), 4.26 x 10(-11), 5.02 x 10(-11), respectively. The isotypes of these McAbs were determined to be IgG1, IgG1, IgG2b and IgG1. These McAbs specifically bound to VP4 in IBDV infected DF-1 cells as demonstrated by Western blotting analysis and fluorescence antibody assay. These McAbs would help to detect IBDV infection and to analyze the biological activities of IBDV VP4.


Subject(s)
Animals , Antibodies, Monoclonal , Blotting, Western , Cell Line , Fluorescent Antibody Technique , Hybridomas , Infectious bursal disease virus , Mice , Mice, Inbred BALB C , Viral Structural Proteins , Allergy and Immunology
17.
Article in Chinese | WPRIM | ID: wpr-302375

ABSTRACT

The purpose of this study was to construct a lentiviral vector carrying IK6 gene and to observe the expression of IK6 as well as related biologic feature in THP1 cells, so as to provide an effective method to further investigate the role of this gene in leukemia. The IK6 gene was obtained by using reverse transcription polymerase chain reaction (RT-PCR). Then IK6 was recombined with the pGC-FU vector to construct a recombinant lentiviral vector named pGC-FU-IK6 gene-GFP,which was confirmed by PCR and sequencing. The 293T cells were transfected with pGC-FU- IK6-GFP by using Lipofectamine 2000. After examining the titer of the virus, pGC-FU- IK6-GFP was used to transfect THP1 cells. The transfection efficiency was detected by flow cytometry, and the expression level of mRNA and IK6-GFP fusion protein were confirmed by RT-PCR and Western blot respectively. Then the impact of IK6 on apoptosis and cell cycle was analyzed. The results showed that the IK6 gene was obtained by RT-PCR and connected into the linearized lentiviral vector to successfully constructed target plasmid named pGC-FU-IK6-GFP with Amp resistant. The target plasmid was transfected into 293T cells and the virus titer was 2.0×10(9)TU/ml. Next, THP1 cells were transfected with pGC-FU-IK6-GFP and the efficiency was up to 90%. The detection of the IK6 mRNA and IK6-GFP fusion protein in target cells showed that IK6 could promote target cell clone formation and inhibit apoptosis, but had no significant effect on the cell cycle. It is concluded that virus vector carrying IK6 gene had been successfully constructed and expressed in THP1 stably. Biology studies of target THP1 cell shows that the IK6 is likely to interfere with the function of normal Ikaros protein as tumor suppressor, and it exerts a potential anti-apoptotic effect. Thus, IK6 can promote leukemia cell growth. However, there is no significant effect on the cell cycle. It provides an effective method for exploring the function of IK6 in acute myeloid leukemia.


Subject(s)
Apoptosis , Cell Cycle , Cell Line, Tumor , Gene Expression , Genetic Vectors , Humans , Ikaros Transcription Factor , Genetics , Metabolism , Lentivirus , Genetics , Leukemia, Monocytic, Acute , Metabolism , Plasmids , Transfection
18.
Article in English | WPRIM | ID: wpr-247100

ABSTRACT

The aim of this study was to evaluate the effects of low concentrations of DEHP and MEHP on steroidogenesis in a murine Leydig tumor cell line (MLTC-1) in vitro. The result of flow cytometry analysis revealed that the proportion of apoptotic cells was significantly increased after the exposure to DEHP. All three genes (P450scc, P450c17, and 3βHSD) under study showed an increased expression following exposure to DEHP or MEHP, although some insignificant inhibitory effects appeared in the 10 μmol/L treatment group as compared with the controls. It was also found that compared with the controls. It was also found that DEHP or MEHP stimulated INSL3 mRNA and protein especially in the 0.001 μmol/L treatment group. Testosterone secretions were stimulated after the exposure to DEHP or MEHP. Alternations of steroidogenic enzymes and INSL3 in MLTC-1 cells might be involved in the biphasic effects of DEHP/MEHP on androgen production.


Subject(s)
Animals , Apoptosis , Cell Line, Tumor , Diethylhexyl Phthalate , Toxicity , Leydig Cell Tumor , Metabolism , Pathology , Mice , Steroids
19.
Article in English | WPRIM | ID: wpr-347158

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effects of caffeic acid ester fraction (Caf) from Erigeron breviscapus, mainly composed of dicaffeoylquinic acids (diCQAs), on microglial activation in vitro and focal cerebral ischemia in vivo.</p><p><b>METHODS</b>The production of nitric oxide (NO), tumor necrosis factor α (TNF-α), and interleukin-1β (IL-1β) induced by lipopolysaccharide (LPS) treatment in rat primary cultured microglia were measured by Griess reaction or enzyme-linked immunosorbent assay. Cell viability of cortical neurons was measured using AlamarBlue reagent. The behavioral tests and the infarct area of brain were used to evaluate the damage to central nervous system in rat middle cerebral artery occlusion (MCAO) model of cerebral ischemia. Real time polymerase chain reaction was used to determine the expression of inducible nitric oxide synthase (iNOS), TNF-α and IL-1β mRNA in ischemic cerebral tissues.</p><p><b>RESULTS</b>Caf inhibited the production of NO, TNF-α and IL-1β induced by LPS treatment in primary microglia in a dose-dependent manner. Exposure of cortical neurons to conditioned medium from Caf-treated microglia increased neuronal cell viability (P<0.01) compared with conditioned medium from LPS-treated alone. In MCAO rat model of cerebral ischemia, Caf could significantly improve neurobehavioural performance and reduce percentage infarct volume compared with the vehicle group (P<0.05). Caf could also significantly inhibit the up-regulation of iNOS, TNF-α, and IL-1β gene expressions in ischemic cerebral tissues.</p><p><b>CONCLUSION</b>Caf could suppress microglial activation, which may be one mechanism of its neuroprotective effect against ischemia.</p>


Subject(s)
Animals , Brain , Metabolism , Pathology , Brain Ischemia , Drug Therapy , Pathology , Caffeic Acids , Chemistry , Pharmacology , Chemical Fractionation , Chromatography, High Pressure Liquid , Erigeron , Chemistry , Gene Expression Regulation , Infarction, Middle Cerebral Artery , Pathology , Interleukin-1beta , Genetics , Metabolism , Microglia , Metabolism , Pathology , Neuroprotective Agents , Chemistry , Pharmacology , Therapeutic Uses , Nitric Oxide Synthase Type II , Genetics , Metabolism , Plant Extracts , Pharmacology , Quinic Acid , Chemistry , Pharmacology , Therapeutic Uses , RNA, Messenger , Genetics , Metabolism , Rats , Rats, Wistar , Tumor Necrosis Factor-alpha , Genetics , Metabolism
20.
Article in Chinese | WPRIM | ID: wpr-269210

ABSTRACT

Objective To estimate the relationship between the risk stratification of patients with diabetes and their clinical endpoint events.Methods In this cohort study,we prospectively followed 8302 individuals under the following situations: contents of fasting plasma glucose ≥7.0 mmol/L,being diagnosed as diabetes or having used hypoglycemic drugs from Kailuan study in which 101510 employees (81110 males,20400 females,who were being employed and those retired from the company were included) from the Kailuan Company,were screened.During the 38-53(48.01 ± 3.14) months of follow-up period,a new heart or cerebrovascular events were ascertained every six months.The impacts of different risk stratification in diabetic population on the incidence rates of cardiovascular and cerebrovascular events were estimated.Results Using the definitions of “people with ischemic cardiovascular disease incidence of 10-year risk assessment methods”developed by the Chinese Academy of Medical Sciences,Institute of Cardiovascular Disease,the study cohort was divided into four groups,namely,very low-risk,low risk,medium risk and high risk.(1) Along with the increasing risk of the disease,the incidence rates of total cardiovascular and cerebrovascular events,myocardial infarction,stroke,cardiovascular death and all-cause death rate also gradually increased and the differences were statistically significant (P<0.01).However,the difference on incidence rate of sudden death was not significantly different (P>0.05).(2)Compared to the very low-risk group,the age and sex adjusted relative risk for cardiovascular and cerebrovascular events were 1.42 (95%CI: 1.02-1.96,P<0.05),2.26 (95%CI: 1.67-3.04,P<0.01 ) for those with medium and high risk groups,respectively.Conclusion In diabetic patients,those risk factors as age,hypertension,body mass index,total cholesterol and smoking having been used on ischemic cardiovascular disease,could also be used to predict the occurrence of cardiovascular events.Along with the increasing risk factors,the risk of cardiovascular events incidence also increased.

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