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1.
Journal of Modern Urology ; (12): 500-505, 2023.
Article in Chinese | WPRIM | ID: wpr-1006047

ABSTRACT

【Objective】 To investigate the effects of WM-3835, a histone acetyltransferase KAT7 (KAT7) inhibitor, on the proliferation and migration of bladder cancer cells and to explore the possible mechanism. 【Methods】 Human ureteral epithelial immortalized cell line SV-HUC-1, and bladder cancer cell lines UM-UC-3 and T24 were treated with different concentrations of WM-3835 (0, 10, 20, 30, 40 μmol/L). After 48 hours, the effects of WM-3835 on the proliferation, cell cycle distribution and migration of cells were detected with MTT assay, flow cytometry, scratch and Transwell assay, respectively. The expressions of cyclin D1 (cyclin D1), proliferating nuclear antigen (PCNA), matrix metalloproteinase 9 (MMP9) and neurocadherin (N-cadherin) were detected with Western blotting and real-time quantitative PCR. 【Results】 WM-3835 significantly inhibited the proli-feration of bladder cancer cells in a dose-dependent manner. After treatment with WM-3835, the cycle of UM-UC-3 and T24 cells were blocked in the G0/G1 phase, the proliferation was effectively inhibited, and the migration was significantly wea-kened. The expressions of cyclin-D1, PCNA, MMP9 and N-cadherin were down-regulated. 【Conclusion】 WM-3835 can inhibit the proliferation and migration of bladder cancer cells, and has the potential as a chemotherapeutic agent for bladder cancer.

2.
Journal of Preventive Medicine ; (12): 37-41, 2022.
Article in Chinese | WPRIM | ID: wpr-907057

ABSTRACT

Objective @#To establish a headspace-gas chromatography ( HS-GC ) method for the determination of acetone and butanone, the biomarkers of occupational exposure to isopropanol and butanone, in urine of occupational populations. @*Methods @#Urine samples at 5.0 mL were transferred to a headspace bottle, added with 2.0 g anhydrous sodium sulfate, sealed immediately, and placed in a headspace sampler-gas chromatograph-mass spectrometer. Following heating at 60 ℃ for 30 min, 0.5 mL urine samples were injected and separated with the DB-FFAP capillary chromatographic column, and determined with the flame ionization detector. In addition, the retention time and peak area were determined. @*Results @#The peak area appeared a linear relationship with mass concentrations of acetone at 0.16-80 mg/L and butanone at 0.03-16 mg/L (correlation coefficient, 0.999 9), with detection limits of 0.009 and 0.004 mg/L, quantitation limits of 0.03 and 0.02 mg/L, respectively. The mean recovery rates of spiked samples were 93.67%-99.37% and 91.18%-94.41% for low, medium and high concentrations of acetone and butanone, and the relative standard deviations of 1.53%-3.69% and 2.54%-6.58%, respectively. @*Conclusion @#A highly sensitive and repeatable HS-GC method is successfully established for simultaneous determination of acetone and butanone in urine samples by optimizing sample pretreatment and separation, which is feasible for qualitative and quantitative analyses of acetone and butanone in urine.

3.
Journal of China Pharmaceutical University ; (6): 707-712, 2021.
Article in Chinese | WPRIM | ID: wpr-906764

ABSTRACT

@#A deuterated internal standard quantitative analysis method based on liquid-liquid extraction-ultra performance liquid chromatography-tandem mass spectrometry (LLE-UPLC-MS/MS) for simultaneous determination of 10 illicit drugs in wastewater was established.Wastewater samples were concentrated by liquid-liquid extraction with dichloromethane: ethyl acetate (1∶1), and separated by a linear gradient of 0.1% formic acid-5 mmol/L ammonium formate aqueous solution and acetonitrile on a C18 column. The samples were then detected by ESI positive ion mode and multiple reaction monitoring mode (MRM) for quantitative analysis.All analytes had a good linear relationship (r ≥ 0.995 7) within the range of their respective standard curves; the limit of quantification was 1 ng/L (except amphetamine at 2.5 ng/L); the relative recovery rate ranged from 96.36% to 106.43%, and the intra- and inter-day precisions were less than 4.70%.This method is accurate, reliable and reproducible, and is suitable for the quantitative determination of 10 illicit drugs in wastewater.It is also suitable for wastewater with complex matrixes that affect solid phase extraction and enrichment.It provides a new analytical method for real-time monitoring of drug abuse.

4.
Acta Pharmaceutica Sinica B ; (6): 1513-1525, 2021.
Article in English | WPRIM | ID: wpr-888817

ABSTRACT

Ferroptosis is a type of cell death accompanied by iron-dependent lipid peroxidation, thus stimulating ferroptosis may be a potential strategy for treating gastric cancer, therapeutic agents against which are urgently required. Jiyuan oridonin A (JDA) is a natural compound isolated from Jiyuan

5.
Journal of Zhejiang University. Science. B ; (12): 64-76, 2020.
Article in English | WPRIM | ID: wpr-1010516

ABSTRACT

Proteasome inhibitors have shown remarkable success in the treatment of hematologic neoplasm. There has been a lot of attention to applying these drugs for solid tumor treatment. Recent preclinical study has signified the effectiveness on cell proliferation inhibition in lung adenocarcinoma treated by carfilzomib (CFZ), a second generation proteasome inhibitor. However, no insight has been gained regarding the mechanism. In this study, we have systematically investigated the CFZ functions in cell proliferation and growth, cell cycle arrest, and apoptosis in lung adenocarcinoma cells. Flow cytometry experiments showed that CFZ significantly induced G2/M cell cycle arrest and apoptosis in lung adenocarcinoma. MTS and colony formation assays revealed that CFZ substantially inhibited survival of lung adenocarcinoma cells. All results were consistently correlated to the upregulation expression of Gadd45a, which is an important gene in modulating cell cycle arrest and apoptosis in response to physiologic and environmental stresses. Here, upregulation of Gadd45a expression was observed after CFZ treatment. Knocking down Gadd45a expression suppressed G2/M arrest and apoptosis in CFZ-treated cells, and reduced cytotoxicity of this drug. The protein expression analysis has further identified that the AKT/FOXO3a pathway is involved in Gadd45a upregulation after CFZ treatment. These findings unveil a novel mechanism of proteasome inhibitor in anti-solid tumor activity, and shed light on novel preferable therapeutic strategy for lung adenocarcinoma. We believe that Gadd45a expression can be a highly promising candidate predictor in evaluating the efficacy of proteasome inhibitors in solid tumor therapy.


Subject(s)
Humans , Adenocarcinoma of Lung/pathology , Apoptosis/drug effects , Cell Cycle Checkpoints/drug effects , Cell Cycle Proteins/genetics , Cell Line, Tumor , Forkhead Box Protein O3/physiology , Gene Expression Regulation, Neoplastic/drug effects , Lung Neoplasms/pathology , Oligopeptides/pharmacology , Proto-Oncogene Proteins c-akt/physiology , Up-Regulation
6.
Chinese Medical Journal ; (24): 49-60, 2020.
Article in English | WPRIM | ID: wpr-781608

ABSTRACT

BACKGROUND@#Pulmonary arterial hypertension (PH) is a progressive disease with limited therapeutic options, ultimately leading to right heart failure and death. Recent findings indicate the role of the Warburg effect (aerobic glycolysis) in the development of PH. However, the effect of the glycolysis inhibitor 3-bromopyruvate (3-BrPA) on the pathogenesis of PH has not been well investigated. This study aimed to determine whether 3-BrPA inhibits PH and its possible mechanism.@*METHODS@#PH was induced in adult Sprague-Dawley rats by a single intraperitoneal injection of monocrotaline (MCT). 3-BrPA, or phosphate-buffered saline (PBS) was administered via intraperitoneal injection every other day from the first day of MCT-injection to 4 weeks of follow-up, and indices such as right ventricular systolic pressure (RVSP), right ventricular hypertrophy index (RVHI), pulmonary arteriolar remodeling indicated by percent media thickness (% MT), lactate levels and glucose consumption, were evaluated. Pulmonary arteriolar remodeling and right ventricular hypertrophy were observed in hematoxylin-eosin-stained lung sections. Western blotting, immunohistochemistry, and/or immunofluorescence analyses were used to measure the expression of relevant proteins. A cytochrome C release apoptosis assay and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end-labeling staining were used to measure cell apoptosis.@*RESULTS@#MCT-induced PH showed a significant increase in glucose consumption (0 vs. 4 weeks: 0.87 ± 0.23 vs. 2.94 ± 0.47, P = 0.0042) and lactate production (0 vs. 4 weeks: 4.19 ± 0.34 vs. 8.06 ± 0.67, P = 0.0004). Treatment with 3-BrPA resulted in a concomitant reduction in glucose consumption (1.10 ± 0.35 vs. 3.25 ± 0.47, P = 0.0063), lactate production (5.09 ± 0.55 vs. 8.06 ± 0.67, P = 0.0065), MCT-induced increase in RVSP (39.70 ± 2.94 vs. 58.85 ± 2.32, P = 0.0004), pulmonary vascular remodeling (% MT, 43.45% ± 1.41% vs. 63.66% ± 1.78%, P < 0.0001), and right ventricular hypertrophy (RVHI, 38.57% ± 2.69% vs. 62.61% ± 1.57%, P < 0.0001) when compared with those of the PBS-treated group. 3-BrPA, a hexokinase 2 inhibitor, exerted its beneficial effect on PH by decreasing aerobic glycolysis and was also associated with inhibiting the expression of glucose transporter protein-1, inducing apoptosis, and suppressing inflammation.@*CONCLUSIONS@#3-BrPA might have a potential beneficial effect on the PH treatment.

7.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 63-68, 2020.
Article in Chinese | WPRIM | ID: wpr-873250

ABSTRACT

Objective::To explore the clinical efficacy of Magui Wenjingtang combined with joint mobilization in the treatment of periarthritis of the shoulder and the effect on hemodynamics and serum pain media. Method::A total of 120 patients with scapulohumeral periarthritis were enrolled in Tianjin Ninghe Hospital from July 2016 to July 2018.All cases were divided into control group and observation group, with 60 patients in each group. The control group received shoulder joint loosening operation (qd), and celecoxib capsules for oral administration. The observation group was treated with Magui Wenjingtang in addition to the shoulder joint loosening operation, 1 dose/d, 2 times/d. After 4 weeks of continuous treatment, the subjects were compared for the subjective pain level McGill Pain Questionnaire (SF-MPQ) score, shoulder mobility hemodynamic changes, and serum prostaglandin E2 (PGE2), substance P (SP), serotonin (5-HT) level and clinical efficacy. Result::Compared with before treatment, visual pain score (VAS), current pain status (PPI), and pain rating index (PRI) scores of the two groups were significantly lower after 4 weeks of treatment, and those of the observation group was significantly lower than the control group (P<0.01). The range of shoulder joint activity was significantly higher than that of the control group (P<0.01), erythrocyte sedimentation rate (ESR), fibrinogen (Fb), whole blood viscosity and serum were compared between the two groups after 4 weeks of treatment and before treatment. The levels of PGE2, SP and 5-HT were significantly lower (P<0.01), and the observation group was significantly better than the control group (P<0.01). The total effective rate of the observation group was 96.61%(57/59), which was significantly higher than 82.76% (48/58) of the control group(χ2=4.685, P<0.05). Conclusion::Magui Wenjingtang combined with shoulder joint loosening operation in treating periarthritis of shoulder with syndrome of blood deficiency and cold coagulation can effectively improve the pain and shoulder joint mobility, increase the curative effect, and improve the hemodynamics, and down-regulatie pain mediator of PGE2, SP, 5-HT, which may be related to the curative effect.

8.
Journal of Preventive Medicine ; (12): 334-338, 2020.
Article in Chinese | WPRIM | ID: wpr-822755

ABSTRACT

Objective@#To determine the relationship between dengue virus load and clinical characteristics, so as to provide basis for dengue fever prevention and treatment.@*Methods @#The dengue viral load and typing of 120 patients in Gongshu District of Hangzhou from June to November 2017 were detected by real-time fluorescent quantitative RT-PCR;the clinical indicators of these dengue patients were collected and their correlation with the viral load was analyzed.@*Results@#The DNA detection of dengue virus in 120 patients showed that they were all typeⅡ. The median dengue virus load was 3.91×104 copies/mL. All the patients had fever, the average peak temperature was(38.96 ± 0.69)℃. There were 102(85.00%)cases with asthenia;116(96.67%)cases with white blood cell count(WBC)less than 4× 109/L;119(99.17%)cases with platelet count(PLT)less than 100×109/L;114(95.00%)cases with glutamic oxaloacetate transaminase(GOT)more than 40 U/L;81(67.50%)cases with glutamic pyruvate transaminase(GPT)more than 52 U/L;58(48.33%)cases with creatine kinase(CK)more than 210 U/L. There was no significant correlation of dengue virus load with length of hospitalization, peak temperature,duration of fever, WBC,PLT, GOT, GPT and CK(P>0.05). There were 75(62.50%)severe patients, and their median viral load was 9.29×104copies/mL, which was higher than 5.33×103copies/mL in non-severe patients(P<0.05). @*Conclusion @#The dengue virus load is not related with length of hospitalization,peak temperature,WBC,PLT,GOT,GPT and CK,but with the severity of the disease.

9.
Chinese journal of integrative medicine ; (12): 203-209, 2019.
Article in English | WPRIM | ID: wpr-776601

ABSTRACT

OBJECTIVE@#To investigate the effects of Ganoderma lucidum polysaccharides (GL-PS) on human fibroblasts and skin wound healing in Kunming male mice and to explore the putative molecular mechanism.@*METHODS@#Primary human skin fibroblasts were cultured. The viability of fibroblasts treated with 0, 10, 20, 40, 80, and 160 μg/mL of GL-PS, respectively were detected by 3-4,5-dimethyl-2-thiazolyl-2,5-diphenyl-2-Htetrazolium bromide (MTT). The migration ability of fibroblasts treated with 0, 10, 20, and 40 μg/mL of GL-PS were measured by transwell assay. The secretion of the C-terminal peptide of procollagen type I (CICP) and transforming growth factor-β1 (TGF-β1) in the cell supernatant was tested by enzyme-linked immunosorbent assay. The expression of β-catenin was detected by Western blot. Furthermore, the Kunming mouse model with full-layer skin resection trauma was established, and was treated with 10, 20, and 40 mg/mL of GL-PS, respectively as external use. The size of the wound was measured daily, complete healing time in each group was recorded and the percentage of wound contraction was calculated.@*RESULTS@#Compared with the control group, 10, 20, and 40 μg/mL of GL-PS significantly increased the viability of fibroblasts, promoted the migration ability of fibroblasts, and up-regulated the expressions of CICP and TGF-β1 in fibroblasts (Plt;0.05 or Plt;0.01). The expression of β-catenin in fibroblasts treated with 20 and 40 μg/mL of GL-PS was significantly higher than that of the control group (Plt;0.01). Furthermore, after external use of 10, 20, and 40 mg/mL of GL-PS, the rates of wound healing in mice were significantly higher and the wound healing time was significantly less than the control group (Plt;0.05 or Plt;0.01).@*CONCLUSION@#A certain concentration of GL-PS may promote wound healing via activation of the Wnt/β-catenin signaling pathway and up-regulation of TGF-β1, which might serve as a promising source of skin wound healing.


Subject(s)
Animals , Humans , Male , Mice , Cell Movement , Cell Survival , Cells, Cultured , Collagen Type I , Fibroblasts , Polysaccharides , Pharmacology , Reishi , Chemistry , Skin , Wounds and Injuries , Transforming Growth Factor beta1 , Physiology , Wound Healing , beta Catenin , Physiology
10.
Chinese Journal of Schistosomiasis Control ; (6): 169-170, 2019.
Article in Chinese | WPRIM | ID: wpr-818899

ABSTRACT

Objective To study the differences of the phenoloxidase (PO) relative activity among ribbed shelled Oncomelania hupensis, smooth shelled O. hupensis and Cipangopaludina chinensis. Methods The crude PO fluid was extracted from the soft tissue of O. hupensis and C. chinensis by homogenation and centrifugation. The PO activity was detected with catechol as the substrate in the reaction systems. Results The PO relative activities in the ribbed shelled O. hupensis, smooth shelled O. hupensis and C. chinensis were (25.72 ± 2.27), (14.56 ± 1.24) U / mL and (13.72 ± 1.06) U / mL. The PO relative activity in the smooth shelled O. hupensis was higher than that in the ribbed shelled O. hupensis (q = 21.46, P < 0.05) and C. chinensis (q = 12.00, P < 0.05), while the difference between the PO relative activities of the latter two was not statistically significant (q = 1.62, P > 0.05) . Conclusion There is a difference in the relative PO activity between O. hupensis and C. chinensis, which may be related to the living environment of snails.

11.
Journal of Central South University(Medical Sciences) ; (12): 1376-1384, 2019.
Article in Chinese | WPRIM | ID: wpr-813004

ABSTRACT

To compare the clinical features and the heterogeneity of macrophages in different clinical phenotypes of chronic obstructive pulmonary disease (COPD) patients with frequent or infrequent exacerbations.
 Methods: Clinical characteristics of eighty COPD patients with chronic bronchitis (CB), emphysema (EM) or asthma-COPD overlap (ACO) phenotypes suffered from acute exacerbation were analyzed. The expressions of CCL3 and CD163 in sputum macrophages were detected by flow cytometry. The expressions of HIF-1α and Cav-1 in sputum macrophages were detected by quantitative PCR (qPCR).
 Results: The age, forced expiratory volume in one second (FEV1)/forced vital capacity (FVC), sputum bacteria positive rate, COPD Assessment Test (CAT) score, and Modified Medical Research Council (mMRC) score between the patients with FE and iFE were significantly different (P0.05), while CD163 was slightly raised (P>0.05). Meanwhile, HIF-1α levels were slightly elevated (P>0.05), while Cav-1 expression was significantly increased (P0.05). At the same time, the expression of HIF-1α (P<0.01) and Cav-1(P<0.05) also increased significantly. There was a significant negative correlation between CCL3 and HIF-1α or Cav-1 in all FE and FE patients with CB phenotype. CD163 was only positively correlated with HIF-1α in those patients and FE patients with EM phenotype. There was a significant negative correlation between CCL3 and HIF-1α in FE patients with ACO phenotype, while CD163 was significantly positively correlated with HIF-1α.
 Conclusion: The clinical features of FE or iFE patients with CB, EM or ACO phenotype are different, and M2 in induced sputum from FE patients are dominant. HIF-1α may play a key role in the polarization process.


Subject(s)
Humans , Disease Progression , Forced Expiratory Volume , Lung , Macrophages , Phenotype , Pulmonary Disease, Chronic Obstructive , Sputum , Vital Capacity
12.
Chinese Journal of Applied Physiology ; (6): 367-370 378, 2018.
Article in Chinese | WPRIM | ID: wpr-776590

ABSTRACT

OBJECTIVE@#To study the effects of Angelicaesinensis radix (Danggui) decoction on the therapeutic action and the colonic morphology and mucus secretion in XuexuBianmi model mice.@*METHODS@#Sixty Kunming mice, maleandfemaleinhalf, were randomly divided into six groups according to gender and weight (=10):normal control group, XuexuBianmi model group, positive control group, and high-dose, middle-dose and low-dose Danggui groups. Except the normal control group, the mice in the rest groups were orally administrated with diphenoxylate (DPN) and subcutaneously injected with acetylphenyhydrazine (APH) and intraperitoneally injected with cyclophosphamide (CPA) to copy XuexuBianmi model. Fromthe 14th day, the mice in Danggui groups were orally administered with different doses of Danggui decoction (16.67、8.33、4.17 g/kg), the mice in positive control group were orally administered with Changtongshu granule (5 g/kg), the mice in XuexuBianmi model group were administered with normal saline (NS) at the same volume (10 ml/kg), once a day for consecutive 28 days. The general status were observed, the first black defecation time (FBDT), the water content in stool and in colon in mice of all groups were tested. And the colon tissue was stained with hematoxylin-eosin (HE) and AB-PAS to observe the changes of colonic morphology and the mucus secretion.@*RESULTS@#Compared with the normal control group, there appeared the XuexuBianmi syndromes in model group as follows, the defecation time (FBDT) was significantly prolonged, the water contentinstool and in colon were decreased (<0.01), the colonic mucosa and gland were atrophied, mucous membrane layer was thinned (<0.01), mucus secretion was decreased. Compared with the XuexuBianmimodel group, the Xuexu and Bianmi syndromes were improved, the FBDT was significantly shortened (<0.05, <0.01), the water content of colon was increased in the three groups of Danggui decoction (<0.05, <0.01). The water content of the stool was obviouslyincreased in groups of 16.67and 8.33kg.dDanggui decoction (<0.05). The atrophy of colon mucosa and gland was improved, the mucus secretion was increased, and the colon lubrication function was improved in the three groups in different doses of Danggui decoction.@*CONCLUSIONS@#Dangguican improve the mucosal atrophy, and increase the secretion of colonic mucus, then the stool is softened and promoted to discharge.


Subject(s)
Animals , Mice , Angelica sinensis , Colon , Drugs, Chinese Herbal , Mucus , Plant Roots
13.
Chinese Journal of Applied Physiology ; (6): 379-384, 2018.
Article in Chinese | WPRIM | ID: wpr-776587

ABSTRACT

OBJECTIVE@#To investigate the effects of Radix Angelicae Sinensis (RASI) and hydrocortisone combination on the murine asthma model and the mechanism.@*METHODS@#BALB/c mice were randomly divided into control group, blood stasis model group, asthma model group, HSS group, RASI group and RASI+HSS group (=12). Ovalbumin (OVA) was used to replicate mice asthma model and hydrocortisone sodium succinate (HSS) to copy blood stasis model. Effects of RASI, HSS and their combination on hemorheology, anti-asthma (asthmatic behaviors, lung function, lung index and water content in lung tissue) were observed. and anti-asthma mechanisms The expression of relative cytokines, high-mobility group box 1 (HMGB1), toll-like receptor 4 (TLR4) and nuclear factor-κB (NF-κB) was detected by ELISA and immunohistochemistry respectively.@*RESULTS@#Eight g/kg RASI, 0.05 g/kg HSS and their combination could significantly relieve asthma behavioral indicators, improve lung function, reduce lung index and water content in lung tissue, decrease the levels of TNF-α, IL-1β and IL-6 in broncho-alveolar lavage fluid (BALF), and inhibit the high expression of HMGB1, TLR4 and NF-κB in lung tissue. The improvement of lung function and the decrease in level of relative cytokines (TNF-α、IL-1βIL-6) were better in RASI+HSS group than those in RASI group and HSS group, and the inhibition of protein expression of TLR4 and NF-κB was also too. Combined administration of RASI and hydrocortisone could decrease serum thromboxane B2 (TXB2) content and blood viscosity, which were increased induced by hydrocortisone.@*CONCLUSIONS@#Combined administration of RASI and hydrocortisone have obvious anti-asthma effects and one of the mechanisms is to inhibit protein synthetization of HMGB1, TLR4 and NF-κB.The combined administration of RASI and hydrocortisone has stronger improvement of lung function than that of RASI and hydrocortisone alone, and it may be related to the inhibition of TLR4 and NF-κB synthetization. The combined administration of RASI can alleviate abnormal changes of hemorheology induced by hydrocortisone in treatment of asthma.


Subject(s)
Animals , Mice , Anti-Asthmatic Agents , Asthma , Bronchoalveolar Lavage Fluid , Cytokines , Hydrocortisone , Lung , Mice, Inbred BALB C , NF-kappa B
14.
Chinese Journal of Schistosomiasis Control ; (6): 169-170, 2018.
Article in Chinese | WPRIM | ID: wpr-818777

ABSTRACT

Objective To study the differences of the phenoloxidase (PO) relative activity among ribbed shelled Oncomelania hupensis, smooth shelled O. hupensis and Cipangopaludina chinensis. Methods The crude PO fluid was extracted from the soft tissue of O. hupensis and C. chinensis by homogenation and centrifugation. The PO activity was detected with catechol as the substrate in the reaction systems. Results The PO relative activities in the ribbed shelled O. hupensis, smooth shelled O. hupensis and C. chinensis were (25.72 ± 2.27), (14.56 ± 1.24) U / mL and (13.72 ± 1.06) U / mL. The PO relative activity in the smooth shelled O. hupensis was higher than that in the ribbed shelled O. hupensis (q = 21.46, P < 0.05) and C. chinensis (q = 12.00, P < 0.05), while the difference between the PO relative activities of the latter two was not statistically significant (q = 1.62, P > 0.05) . Conclusion There is a difference in the relative PO activity between O. hupensis and C. chinensis, which may be related to the living environment of snails.

15.
Chongqing Medicine ; (36): 189-192, 2018.
Article in Chinese | WPRIM | ID: wpr-691767

ABSTRACT

Objective To use the cone-beam computed tomography(CBCT) to analyze the root number and root canal morphology of maxillary third molars in Luzhou area.Methods A total of 321 maxillary third molars in 200 outpatients in the stomatological hospital of Southwest Medical University from September 2016 to February 2017 were collected.The age,gender,root number,canal morphology and CBCT imaging data were recorded.The difference in root number of maxillary third molars between left and right sides and between genders were analyzed.Results In included 321 maxillary third molars,the root number was mainly fused root teeth(56.70%),followed by three roots teeth(26.48%);the number of root canal was mainly three root canals (38.94 %),followed by single root canal(30.84 %).According to the Vertucci root canal classification,65.73 % of root canals were type Ⅰ and 10.60% were type Ⅴ.There was no statistical differences between left and right sides(P>0.05),wherease there was statistically difference between genders(P<0.05).Conclusion The root number of maxillary third molars is variable,the root canal morphology has large variability and the root canal system is complex.

16.
Chinese Medical Journal ; (24): 1917-1925, 2018.
Article in English | WPRIM | ID: wpr-773949

ABSTRACT

Background@#Follistatin-like 1 (FSTL1) is a novel profibrogenic factor that induces pulmonary fibrosis (PF) through the transforming growth factor-beta 1 (TGF-β1)/Smad signaling. Little is known about its effects on PF through the non-Smad signaling, like the mitogen-activated protein kinase (MAPK) pathway. Therefore, this study aimed to investigate the role of FSTL1 in PF through the MAPK signaling pathway and its mechanisms in lung fibrogenesis.@*Methods@#PF was induced in Fstl1and wild-type (WT) C57BL/6 mice with bleomycin. After 14 days, the mice were sacrificed, and lung tissues were stained with hematoxylin and eosin; the hydroxyproline content was measured to confirm PF. The mRNA and protein level of FSTL1 and the change of MAPK phosphorylation were measured by quantitative polymerase chain reaction and Western blotting. The effect of Fstl1 deficiency on fibroblasts differentiation was measured by Western blotting and cell immunofluorescence. MAPK signaling activation was measured by Western blotting in Fstl1 and WT fibroblasts treated with recombinant human FSTL1 protein. We pretreated mouse lung fibroblast cells with inhibitors of the extracellular signal-regulated kinase (ERK), p38, and Jun N-terminal kinase (JNK) signaling and analyzed their differentiation, proliferation, migration, and invasion by Western blotting, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide analysis, and transwell assays. The Student's t-test was used to compare the differences between two groups.@*Results@#Fstl1 deficiency attenuated phosphorylation of the ERK, p38, and JNK signaling in bleomycin-induced fibrotic lung tissue 14 days after injury (0.67 ± 0.05 vs. 1.22 ± 0.03, t = 14.92, P = 0.0001; 0.41 ± 0.01 vs. 1.15 ± 0.07; t = 11.19; P = 0.0004; and 0.41 ± 0.01 vs. 1.07 ± 0.07, t = 8.92, P = 0.0009; respectively), compared with WT lungs at the same time and in primary lung fibroblasts (0.82 ± 0.01 vs. 1.01 ± 0.04, t = 4.06, P = 0.0150; 1.04 ± 0.03 vs. 1.24 ± 0.03, t = 4.44, P = 0.0100; and 0.76 ± 0.05 vs. 0.99 ± 0.05, t = 4.48, P = 0.0100; respectively), compared with TGF-β1-stimulated WT group. Recombinant human FSTL1 protein in lung fibroblasts enhanced TGF-β1-mediated phosphorylation of the ERK (1.19 ± 0.08 vs. 0.55 ± 0.04, t = 6.99, P = 0.0020), p38 (1.18 ± 0.04 vs. 0.66 ± 0.03, t = 11.20, P = 0.0020), and JNK (1.11 ± 0.01 vs. 0.84 ± 0.04, t = 6.53, P = 0.0030), compared with the TGF-β1-stimulated WT group. Fstl1-deficient fibroblasts showed reduced alpha-smooth muscle actin (α-SMA) expression (0.70 ± 0.06 vs. 1.28 ± 0.11, t = 4.65, P = 0.0035, compared with the untreated WT group; 1.40 ± 0.05 vs. 1.76 ± 0.02, t = 6.31, P = 0.0007; compared with the TGF-β1-treated WT group). Compared with the corresponding condition in the control group, the TGF-β1/FSTL1-mediated α-SMA expression was significantly suppressed by pretreatment with an inhibitor of p38 (0.73 ± 0.01 vs. 1.13 ± 0.10, t = 3.92, P = 0.0078) and JNK (0.78 ± 0.03 vs. 1.08 ± 0.06, t = 4.40, P = 0.0046) signaling. The proliferation of mouse lung fibroblast cells (MLgs) significantly decreased after treatment of an inhibitor of p38 (0.30 ± 0.01 vs. 0.46 ± 0.03, t = 4.64, P = 0.0009), JNK (0.30 ± 0.01 vs. 0.49 ± 0.01, t = 12.84, P = 0.0001), and Smad2/3 (0.18 ± 0.02 vs. 0.46 ± 0.02, t = 12.69, P = 0.0001) signaling compared with the dimethylsulfoxide group. The migration and invasion cells of MLgs significantly decreased in medium pretreated with an inhibitor of p38 (70.17 ± 3.28 vs. 116.30 ± 7.11, t = 5.89, P = 0.0042 for the migratory cells; 19.87 ± 0.84 vs. 32.70 ± 0.95, t = 10.14, P = 0.0005 for the invasive cells), JNK (72.30 ± 3.85 vs. 116.30 ± 7.11, t = 5.44, P = 0.0056 for the migratory cells; 18.03 ± 0.94 vs. 32.70 ± 0.95, t = 11.00, P = 0.0004 for the invasive cells), and Smad2/3 (64.76 ± 1.41 vs. 116.30 ± 7.11, t = 7.11, P = 0.0021 for the migratory cells; 18.03 ± 0.94 vs. 32.70 ± 0.95, t = 13.29, P = 0.0002 for the invasive cells) signaling compared with the corresponding condition in the dimethylsulfoxide group.@*Conclusion@#FSTL1 affects lung fibroblast differentiation, proliferation, migration, and invasion through p38 and JNK signaling, and in this way, it might influence the development of PF.


Subject(s)
Animals , Humans , Mice , Antibiotics, Antineoplastic , Bleomycin , Cells, Cultured , Fibroblasts , Follistatin , Follistatin-Related Proteins , Physiology , Mice, Inbred C57BL , Pulmonary Fibrosis , Transforming Growth Factor beta , Transforming Growth Factor beta1 , Physiology , p38 Mitogen-Activated Protein Kinases
17.
Chinese Journal of Applied Physiology ; (6): 57-60, 2018.
Article in Chinese | WPRIM | ID: wpr-773803

ABSTRACT

OBJECTIVE@#To investigate anti-inflammatory and immunomodulation effects of different ecotype from Isatidis Radix growing in Gansu province.@*METHODS@#Mice were randomly divided into 6 groups (=11)and used the auricular swelling and paw edema to observe the anti-inflammatory effects of Isatidis Radix; Mice were randomly divided into 7 groups (=11) and through the gasbag synovitis model to observe the anti-inflammatory effects of Isatidis Radix; Mice were randomly divided into 6 groups (=11), the immunosuppressed model were established by injection of cyclophosphamide (CTX) to study the effects of Isatidis Radix on index of thymus, blood routine and cytokines.@*RESULTS@#Gansu different ecotype from Isatidis Radix could reduce the swelling of the mice auricle, paw edema and total protein, leukotriene B(LTB)and malonaldehyde(MDA) in airbag synovitis exudates, and upgrade serum levels of superoxide dismutase (SOD); Degrade the tumor necrosis factor-α (TNF-α) and upgrade the index of thymus, the number of red and white corpuscles, the level of interferon-γ (IFN-γ), interleukin-4 (IL-4) (<0.05, 0.01) of mice immunosuppressed model; Above the research of anti-inflammatory and immunomodulation, there were no significant differences between Isatidis Radix of Gansu different ecotype and tetraploid.@*CONCLUSIONS@#Different ecotype of Isatidis Radix has obvious functions in anti-inflammatory and immunomodulation, but there are no significant differences between Gansu different ecotype and tetraploid.


Subject(s)
Animals , Mice , Anti-Inflammatory Agents , Pharmacology , China , Cytokines , Allergy and Immunology , Drugs, Chinese Herbal , Pharmacology , Ecotype , Immunomodulation , Isatis , Chemistry , Plant Extracts , Pharmacology , Random Allocation
18.
Chinese Journal of Applied Physiology ; (6): 169-172, 2018.
Article in Chinese | WPRIM | ID: wpr-773780

ABSTRACT

OBJECTIVES@#To observe the preventive and therapeutic action of Yuyin Ruangan Granule (YRG, Traditional Chinese Medicine) in hepatic fibrosis rats model and its effect on transforming growth factor-β1 (TGF-β1) expression.@*METHODS@#The Wistar rats were randomly divided into 6 group (=10), and the model of hepatic fibrosis rats was established by subcutaneous injected with carbon tetrachloride (CCL4), fed on high-fat diet and 20% ethanol for 6 weeks, to survey the effect and mechanism of YRG preventing hypatic fibrosis by detecting liver function (the activity of alanine aminotransferase(ALT), aspartate aminotransferase(AST), etc.) of liver fibrosis rats, liver fibrosis indicators (hyaluronic acid, Ⅲ procollagen, type IV collagen, laminin and hepatic pathology, etc.), and TGF-β1 expression in liver tissue after 6 weeks treated with YRG through intragastric administration (q. d.).@*RESULTS@#At the 7 week, fibrotic lesions appears distinctly in liver tissue of model group compared with control group (<0.01), YRG of 6.2~28.8 g/kg could significantly decrease hepatic index, ALT and AST activities, content of hyaluronic acid(HA), Ⅲ procollagen (PCⅢ), type Ⅳ collagen(C-Ⅳ), laminin (LN) in serum, relieve liver fibrosis pathological changes and inhibit TGF-β1 expression in fibrotic liver tissue (<0.05, <0.01).@*CONCLUSIONS@#YRG has significantly preventive effects on liver fibrosis rats model, and it may be one of its mechanisms to inhibit expression of TGF-β1.


Subject(s)
Animals , Rats , Carbon Tetrachloride , Drugs, Chinese Herbal , Pharmacology , Liver , Metabolism , Liver Cirrhosis , Drug Therapy , Metabolism , Random Allocation , Rats, Wistar , Transforming Growth Factor beta1 , Metabolism
19.
Chinese Journal of Tissue Engineering Research ; (53): 1634-1640, 2018.
Article in Chinese | WPRIM | ID: wpr-698589

ABSTRACT

BACKGROUND: Currently, whether the use of sodium hypochlorite (NaOCl) influences the bond strength of fiber posts is still uncertain. OBJECTIVE: To evaluate the influence of NaOCl on the bond strength of fiber posts by Meta-analysis. METHODS: Randomized controlled trials about the impact of NaOCl irrigation to the bond strength of fiber posts were retrieved from PubMed, EMbase, Web Of Science, OVID, CBM, ClinicalKey, CNKI, CqVip and WanFang databases, and other databases through manual retrieval as well. The deadline of the collection was December 31, 2016, with no limit of regions and languages. A Meta-analysis was performed with the bond strength of fiber posts as an indicator. RESULTS: A total of 11 randomized controlled trials were included. In the experimental group (NaOCl group), the root canal was rinsed with NaOCl, and dried followed by fiber post bonding using the total-etching system, the self-etching system and the self-adhesive system. In the control group, the root canal was washed with pure water or normal saline.Meta-analysis showed that weighted mean difference(WMD)(NaOCl group/control group)=-0.90,95% confidence interval(CI)(-1.50,-0.31),Z=2.97,P=0.003.Subgroup analysis showed that WMD(total-etching:NaOCl group/control group)=-2.38,95% CI(-4.86,0.10),Z=1.88,P=0.06;WMD(self-etching:NaOCl group/control group)=-1.22,95% CI(-2.17,-0.28),Z=2.55, P=0.01;WMD(self-adhesive:NaOCl group/control group)=-1.97,95% CI(-2.30,-1.64),Z=11.73,P<0.000 01.As the limited number of enrolled samples in the total-etching group and self-etching group results in a higher heterogeneity, further investigations are warranted. The present data suggests that irrigating the surface of root canals with NaOCl alone has negative impact on the bond strength of fiber posts using the self-adhesive system.

20.
Biomedical and Environmental Sciences ; (12): 681-684, 2017.
Article in English | WPRIM | ID: wpr-311361

ABSTRACT

The aim of this study was to evaluate the diagnostic value of the cerebrospinal fluid (CSF) T-SPOT.TB test for the diagnosis of TB meningitis (TBM). A retrospective analysis of 96 patients with manifested meningitis was conducted; T-SPOT.TB test was performed for diagnosing TBM to determine the diagnostic sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). A receiver operating characteristic (ROC) curve was also drawn to assess the diagnostic accuracy. The sensitivity, specificity, PPV, and NPV of CSF T-SPOT.TB test were 97.8%, 78.0%, 80.3%, and 97.5%, respectively, for 52 patients (54.2%) of the 96 enrolled patients. The area under the curve (AUC) was 0.910, and the sensitivities of CSF T-SPOT.TB for patients with stages I, II, and III of TBM were 96.7%, 97.2%, and 98.9%, respectively. CSF T-SPOT.TB test is a rapid and accurate diagnostic method with higher sensitivity and specificity for diagnosing TBM.


Subject(s)
Humans , China , Epidemiology , Sensitivity and Specificity , Tuberculosis, Meningeal , Cerebrospinal Fluid , Diagnosis , Epidemiology
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