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1.
Article in Chinese | WPRIM | ID: wpr-923969

ABSTRACT

Objective To characterize the distribution and assess the exposure to phthalic acid esters (PAEs) in the indoor dust of Shanghai City. Methods Samples were collected from 33 sampling sites, including homes, hotels, offices and public places, in Shanghai in 2018, 2019, and 2020. The samples were pretreated by 100 sieves, extracted and concentrated, and then analyzed by gas chromatography-mass spectrometry in selected ion mode (SIM). Results Results on the characteristics of PAEs in indoor dust in different places showed that concentrations of PAEs were in a range of <0.01-2 464 mg·kg-1.The average concentration of 16 PAEs was 613 mg·kg-1. Bis(2-ethylhexyl) phthalate (DEHP), di-iso-butyl phthalate (DiBP), di-n-butyl phthalate (DBP) and di-n-octyl phthalate (DnOP) were the main components of PAEs in indoor dust, accounting for approximately 99.5% of 16 PAEs. The intake of DEHP, DBP, DEP and BBP was lower than the tolerable daily intake (TDI) and reference doses (RfD) set by EU CSTEE and U.S. EPA. Conclusion Average daily dose (ADD) via indoor dust is estimated, and the order of intake through different pathways is hand-oral intake>skin contact>respiratory inhalation. Exposure risk of PAEs in children is greater than that in adults.

2.
Article in Chinese | WPRIM | ID: wpr-923947

ABSTRACT

Objective To characterize the distribution and assess the exposure to phthalic acid esters (PAEs) in the indoor dust of Shanghai City. Methods Samples were collected from 33 sampling sites, including homes, hotels, offices and public places, in Shanghai in 2018, 2019, and 2020. The samples were pretreated by 100 sieves, extracted and concentrated, and then analyzed by gas chromatography-mass spectrometry in selected ion mode (SIM). Results Results on the characteristics of PAEs in indoor dust in different places showed that concentrations of PAEs were in a range of <0.01-2 464 mg·kg-1.The average concentration of 16 PAEs was 613 mg·kg-1. Bis(2-ethylhexyl) phthalate (DEHP), di-iso-butyl phthalate (DiBP), di-n-butyl phthalate (DBP) and di-n-octyl phthalate (DnOP) were the main components of PAEs in indoor dust, accounting for approximately 99.5% of 16 PAEs. The intake of DEHP, DBP, DEP and BBP was lower than the tolerable daily intake (TDI) and reference doses (RfD) set by EU CSTEE and U.S. EPA. Conclusion Average daily dose (ADD) via indoor dust is estimated, and the order of intake through different pathways is hand-oral intake>skin contact>respiratory inhalation. Exposure risk of PAEs in children is greater than that in adults.

3.
Article in Chinese | WPRIM | ID: wpr-886641

ABSTRACT

Objective:To determine the prevalence of facility-based HIV testing and its associated factors among men who have sex with men (MSM) in Shanghai. Methods:From June 2018 to December 2020, MSM were recruited by a community organization “Shanghai CSW&MSM Center (SCMC)”. A total of 3 251 MSM were included as follows: being 18 years old and above, being HIV-negative or with unknown HIV status, living in Shanghai, had homosexual behavior in the past year, and completed informed consent. Using a self-designed questionnaire, we performed an online survey powered by www.wjx.cn to collect information on demographics, sexual behavior, and facility-based HIV testing. A total of 3 240 valid questionnaires were collected. Univariate and multivariate logistic regression were used to determine the factors associated with facility-based HIV testing. Results:A total of 3 240 MSM participated in the study with mean age of (29.7±6.2) years .The prevalence of facility-based HIV testing was 63.2% (2 049/3 240), Multivariate logistic regression showed that the participants with a college degree or above were less likely to have facility-based HIV testing(OR=0.73,P=0.008), compared to those with lower educational background. The proportion of the MSM who sought sexual partners through the internet received facility-based testing was 68.7%. Compared to the participants with the sexual role being 0 (only be penetrated), those being 0.5 (both penetrated and be penetrated) and 1 (only penetrated) were both more likely to have the HIV testing (both P<0.05). Those who used condoms during the last homosexual behavior were more likely to be tested than those who did not (OR=1.39, P=0.001). Those who had been diagnosed with sexually transmitted diseases were more likely to be tested than those who did not (OR=2.05, P<0.001). The participants who had used HIV self-testing kits in the past were more likely to be tested than those who did not (OR=2.31, P<0.001). Conclusion:MSM in Shanghai have lower utilization of facility-based HIV testing, which may be improved by strengthening the advocacy of facility-based HIV testing services through the internet and peer education, and innovating service models.

4.
Chinese Medical Journal ; (24): 1191-1198, 2021.
Article in English | WPRIM | ID: wpr-878170

ABSTRACT

BACKGROUND@#The prevalence of skin diseases and diabetes mellitus (DM) are prominent around the world. The current scope of knowledge regarding the prevalence of skin diseases and comorbidities with type 2 DM (T2DM) is limited, leading to limited recognition of the correlations between skin diseases and T2DM.@*METHODS@#We collected 383 subjects from the Da Qing Diabetes Study during the period from July 9th to September 1st, 2016. The subjects were categorized into three groups: Normal glucose tolerance (NGT), impaired glucose tolerance (IGT), and T2DM. The prevalence and clinical characteristics of skin diseases were recorded and investigated.@*RESULTS@#In this cross-sectional study, 383 individuals with ages ranging from 53 to 89-year-old were recruited. The overall prevalence of skin diseases was 93.5%, and 75.7% of individuals had two or more kinds of skin diseases. Additionally, there were 47 kinds of comorbid skin diseases in patients with T2DM, of which eight kinds of skin diseases had a prevalence >10%. The prevalence of skin diseases in NGT, IGT, and T2DM groups were 93.3%, 91.5%, and 96.6%, respectively; stratified analysis by categories showed a statistically significant difference in "disturbances of pigmentation" and "neurological and psychogenic dermatoses". The duration of T2DM also significantly associated with the prevalence of "disturbances of pigmentation" and "neurological and psychogenic dermatoses". Subsequently, the prevalence of "disturbances of pigmentation" was higher in males than females in NGT (P < 0.01) and T2DM (P < 0.01) groups. In addition, the difference in the prevalence of "disturbances of pigmentation" was also significant in NGT and T2DM groups (P < 0.01).@*CONCLUSIONS@#There was a high prevalence of skin diseases in the Da Qing Diabetes Study. To address the skin diseases in the Da Qing Diabetes Study, increased awareness and intervention measures should be implemented.


Subject(s)
Aged , Aged, 80 and over , Blood Glucose , Cross-Sectional Studies , Diabetes Mellitus, Type 2/epidemiology , Female , Glucose Intolerance/epidemiology , Glucose Tolerance Test , Humans , Male , Middle Aged , Skin Diseases/epidemiology
5.
Chinese Medical Journal ; (24): 1073-1079, 2020.
Article in English | WPRIM | ID: wpr-827658

ABSTRACT

BACKGROUND@#Excessive inflammatory responses play a critical role in the development of severe acute pancreatitis (SAP), and controlling such inflammation is vital for managing this often fatal disease. Dexmedetomidine has been reported to possess protective properties in inflammatory diseases. Therefore, this study aimed to investigate whether dexmedetomidine pre-treatment exerts an anti-inflammatory effect in rats with SAP induced by sodium taurocholate, and if so, to determine the potential mechanism.@*METHODS@#SAP was induced with sodium taurocholate. Rats received an intraperitoneal injection of dexmedetomidine 30 min before sodium taurocholate administration. α-bungarotoxin, a selective alpha-7 nicotinic acetylcholine receptor (α7nAchR) antagonist, was injected intra-peritoneally 30 min before dexmedetomidine administration. The role of the vagus nerve was evaluated by performing unilateral cervical vagotomy before the administration of dexmedetomidine. Efferent discharge of the vagal nerve was recorded by the BL-420F Data Acquisition & Analysis System. Six hours after onset, serum pro-inflammatory cytokine (tumor necrosis factor α [TNF-α] and interleukin 6 [IL-6]) levels and amylase levels were determined using an enzyme-linked immunosorbent assay and an automated biochemical analyzer, respectively. Histopathological changes in the pancreas were observed after hematoxylin and eosin staining and scored according to Schmidt criteria.@*RESULTS@#Pre-treatment with dexmedetomidine significantly decreased serum levels of TNF-α, IL-6, and amylase, strongly alleviating pathological pancreatic injury in the rat model of SAP (TNF-α: 174.2 ± 30.2 vs. 256.1±42.4 pg/ml; IL-6: 293.3 ± 46.8 vs. 421.7 ± 48.3 pg/ml; amylase: 2102.3 ± 165.3 vs. 3186.4 ± 245.2 U/L). However, the anti-inflammatory and pancreatic protective effects were abolished after vagotomy or pre-administration of α-bungarotoxin. Dexmedetomidine also significantly increased the discharge frequency and amplitude of the cervical vagus nerve in the SAP rat model (discharge frequency: 456.8 ± 50.3 vs. 332.4 ± 25.1 Hz; discharge amplitude: 33.4 ± 5.3 vs. 20.5 ± 2.9 μV).@*CONCLUSIONS@#Dexmedetomidine administration attenuated the systemic inflammatory response and local pancreatic injury caused by SAP in rats through the cholinergic anti-inflammatory pathway involving vagus- and α7nAChR-dependent mechanisms.

6.
Chinese Medical Journal ; (24): 2020-2026, 2020.
Article in English | WPRIM | ID: wpr-826423

ABSTRACT

BACKGROUND@#Youzhi artificial intelligence (AI) software is the AI-assisted decision-making system for diagnosing skin tumors. The high diagnostic accuracy of Youzhi AI software was previously validated in specific datasets. The objective of this study was to compare the performance of diagnostic capacity between Youzhi AI software and dermatologists in real-world clinical settings.@*METHODS@#A total of 106 patients who underwent skin tumor resection in the Dermatology Department of China-Japan Friendship Hospital from July 2017 to June 2019 and were confirmed as skin tumors by pathological biopsy were selected. Dermoscopy and clinical images of 106 patients were diagnosed by Youzhi AI software and dermatologists at different dermoscopy diagnostic levels. The primary outcome was to compare the diagnostic accuracy of the Youzhi AI software with that of dermatologists and that measured in the laboratory using specific data sets. The secondary results included the sensitivity, specificity, positive predictive value, negative predictive value, F-measure, and Matthews correlation coefficient of Youzhi AI software in the real-world.@*RESULTS@#The diagnostic accuracy of Youzhi AI software in real-world clinical settings was lower than that of the laboratory data (P < 0.001). The output result of Youzhi AI software has good stability after several tests. Youzhi AI software diagnosed benign and malignant diseases by recognizing dermoscopic images and diagnosed disease types with higher diagnostic accuracy than by recognizing clinical images (P = 0.008, P = 0.016, respectively). Compared with dermatologists, Youzhi AI software was more accurate in the diagnosis of skin tumor types through the recognition of dermoscopic images (P = 0.01). By evaluating the diagnostic performance of dermatologists under different modes, the diagnostic accuracy of dermatologists in diagnosing disease types by matching dermoscopic and clinical images was significantly higher than that by identifying dermoscopic and clinical images in random sequence (P = 0.022). The diagnostic accuracy of dermatologists in the diagnosis of benign and malignant diseases by recognizing dermoscopic images was significantly higher than that by recognizing clinical images (P = 0.010).@*CONCLUSION@#The diagnostic accuracy of Youzhi AI software for skin tumors in real-world clinical settings was not as high as that of using special data sets in the laboratory. However, there was no significant difference between the diagnostic capacity of Youzhi AI software and the average diagnostic capacity of dermatologists. It can provide assistant diagnostic decisions for dermatologists in the current state.

7.
Chinese Medical Journal ; (24): 668-674, 2020.
Article in English | WPRIM | ID: wpr-878090

ABSTRACT

BACKGROUND@#Many Parkinson disease (PD) patients complain about chronic fatigue and sleep disturbances during the night. The objective of this study is to determine the relationship between fatigue and sleep disturbances by using polysomnography (PSG) in PD patients.@*METHODS@#Two hundred and thirty-two PD patients (152 with mild fatigue and 80 with severe fatigue) were recruited in this study. Demographic information and clinical symptoms were collected. Fatigue severity scale (FSS) was applied to evaluate the severity of fatigue, and PSG was conducted in all PD patients. FSS ≥4 was defined as severe fatigue, and FSS <4 was defined as mild fatigue. Multivariate logistic regression and linear regression models were used to investigate the associations between fatigue and sleep disturbances.@*RESULTS@#Patients with severe fatigue tended to have a longer duration of disease, higher Unified Parkinson Disease Rating Scale score, more advanced Hoehn and Yahr stage, higher daily levodopa equivalent dose, worse depression, anxiety, and higher daytime sleepiness score. In addition, they had lower percentage of rapid eye movement (REM) sleep (P = 0.009) and were more likely to have REM sleep behavior disorder (RBD) (P = 0.018). Multivariate logistic regression analyses found that the presence of RBD and proportion of REM sleep were the independent predictors for fatigue. After the adjustment of age, sex, duration, body mass index, severity of disease, scores of Hamilton Rating Scale for Depression, Hamilton Anxiety Rating Scale, and other sleep disorders, proportion of REM sleep and degree of REM sleep without atonia in patients with PD were still associated with FSS score.@*CONCLUSION@#Considering the association between fatigue, RBD, and the altered sleep architecture, fatigue is a special subtype in PD and more studies should be focused on this debilitating symptom.


Subject(s)
Humans , Parkinson Disease/complications , Polysomnography , REM Sleep Behavior Disorder , Sleep , Sleep Wake Disorders/etiology
8.
Article in Chinese | WPRIM | ID: wpr-779485

ABSTRACT

Cancer is a major chronic disease that seriously harms human health. Cancer prevention and control has become one of the priorities of health strategy for governments around the world. We have gradually explored the way of cancer prevention and control in China and produced many research achievements with Chinese characteristics since the 1950s, which has a major impact in cancer prevention and control in the world. This paper systematically reviewed the major historical events of cancer prevention and control in China since the foundation of the People’s Republic of China, and introduced the current situation of cancer prevention and control in modern era, and pointed out the prospect of future work.

9.
Article in Chinese | WPRIM | ID: wpr-777940

ABSTRACT

Objective To evaluate the validity and reliability of an item-specific physical activity scale for Chinese children and adolescents(I-PASCA). Methods Students from Grade 4-12 in Nanjing were randomly selected using a multi-stage sampling approach, 7-days physical activity (PA) level was recorded by self-reported I-PASCA and PA log and were objectively measured with accelerometers. The total moderate and vigorous PA (MVPA) time was calculated. Cronbach α was calculated to estimate the reliability of I-PASCA. Pearson correlation coefficient and Bland-Altman were used to examine I-PASCA's validity. Results There were 815 students recruited in 2013 to evaluate the reliability and validity of I-PASCA using PA log. Cronbach α for I-PASCA was 0.73 regarding moderate and vigorous PA (MVPA). The Spearman correlation coefficients of the values of PA recorded by I-PASCA and PA log were 0.59 for MVPA, and the Bland-Altman coefficient was 95.8% for MVPA. 624 students were involved to examine the reliability and validity of I-PASCA using accelerometers. Cronbach α for I-PASCA was 0.72 regarding MVPA. The Spearman correlation coefficient was 0.36 for MVPA, while the Bland-Altman coefficient was 95.5% for MVPA. Conclusions The I-PASCA, the first physical activity questionnaire specific to Chinese children and adolescents, shows acceptable reliability and validity and can be used to evaluate Chinese students' physical activity level in population-based studies.

10.
Chinese Medical Journal ; (24): 2096-2104, 2019.
Article in English | WPRIM | ID: wpr-802855

ABSTRACT

Objective@#Dermoscopy is a useful technique for improving the diagnostic accuracy of various types of skin disorders. In China, dermoscopy has been widely accepted, and domestic researchers have made tremendous progress in the field of dermoscopy. The main purpose of this review is to summarize the current status of dermoscopy in China and identify its future directions.@*Data sources@#Articles included in this review were obtained by searching the following databases: Wanfang, China National Knowledge Infrastructure, PubMed, and the Web of Science. We focused on research published before 2019 with keywords including dermoscopy, dermoscopic, dermoscope and trichoscopy.@*Study selection@#A total of 50 studies were selected. Of these studies, 20 studies were in Chinese and 30 in English, research samples of all the studies were collected from Chinese populations.@*Results@#Since 2000, more than 380 articles about dermoscopy have been published in domestic or foreign journals. Dermoscopy can improve the diagnostic accuracy of neoplastic diseases, evaluating the therapeutic effect of treatment, and determining the treatment endpoint, and it can also assist in the differential diagnosis of inflammatory diseases and in the assessment of the severity of the disease. In addition, researches about the applications of dermoscopy during surgical treatment have been published. Training courses aiming to improve the diagnostic ability of dermatologists, either face-to-face or online, have been offered. The Chinese Skin Image Database, launched in 2017 as a work platform for dermatologists, has promoted the development of dermoscopy in China. Computer-aided diagnostic systems based on the Chinese population are ready for use. In the future, cooperation, resource sharing, talent development, image management, and computer-aided diagnosis will be important directions for the development of dermoscopy in China.@*Conclusion@#Dermoscopy has been widely used and developed in China, however, it still needs to address more challenges in the future.

11.
Article in Chinese | WPRIM | ID: wpr-801906

ABSTRACT

Objective:To obtain the information of alkaloids in Evodia rutaecarpa by HPLC-Q-TOF-MS/MS. Method:Inter Sustain-C18 column (4.6 mm×250 mm,5 μm) was used with 0.2% formic acid water-acetonitrile as the mobile phase for gradient elution. The column temperature was 25℃,the volume flow rate was 1.0 mL·min-1,and the sample volume is 5 μL. The detection wavelength was 245 nm,and the chromatographic effluent was detected and analyzed by using both positive and negative ions. Result:According to molecular ion peaks and secondary mass spectrometry characteristic fragment ions,as well as the mass spectrometry information of reference substances and relevant literature reports,more than 40 major peaks were analyzed,and 21 alkaloids were identified from the methanol extract of E. rutaecarpa, including 10 kinds of indole alkaloids,10 kinds of quinolone alkaloids,and 1 kind of ephedrine. Main types of alkaloids in E. rutaecarpa were basically clarified. And the research found that the alkaloids have a good response mainly in the positive mode. Conclusion:Based on HPLC-Q-TOF-MS/MS technology, high-performance liquid chromatography (HPLC) separation,mass spectrometry determination of molecular mass,pyrolysis data,literature analysis and retrieval were performed to quickly,accurately and comprehensively identify alkaloids in E. rutaecarpa, so as to provide a scientific basis for the further extraction and separation of the chemical constituents of E. rutaecarpa.

12.
Article in Chinese | WPRIM | ID: wpr-801288

ABSTRACT

Objective@#To compare the efficacy and safety of surgical resection and thermal ablations in patients with hepatocellular carcinoma in China using a network Meta-analysis.@*Methods@#References related to eligible randomized controlled studies (RCTs) were searched from China Biology Medicine, China National Knowledge Infrastructure(CNKI), PubMed, Embase and Cochrane Library from 1st January 2010 to 1st December 2017, and were selected according to the criteria. The 1-year, 3-year, and 5-year survival rates and incidence of serious complications were compared among surgical resection (SR), radiofrequency ablation (RFA), and microwave ablation(MWA) by network Meta-analysis based frequency and Bayesian methods.@*Results@#A total of 24 RCTs were included in this study. The results of surface under the cumulative ranking probabilities (SUCRA) showed that when all RCTs were included, the frequency model supported MWA had the highest 5-year overall survival rate (66.1%), while the Bayesian model supported SR had the highest 5-year overall survival rate (64.7%). When the tumor diameter of hepatocellular carcinoma was less than 5 cm and the liver function was Child-Pugh A/B, the frequency and Bayesian model both supported SR had the highest 5-year overall survival rate (89.1% and 88.3%, respectively). When all RCTs or RCTs were included with the tumor diameter less than 5 cm and liver function was Child-Pugh A/B, both the frequency and the Bayesian model supported RFA had the best safety (serious complications rate) (16.4%, 18.7%, 12.6 and 12.8%, respectively).@*Conclusion@#SR should be the first choice for early and small hepatocellular carcinoma, while RFA and MWA have their own indications.

13.
Article in Chinese | WPRIM | ID: wpr-755889

ABSTRACT

Objective To investigate the levels of 5-hydroxymethylcytosine (5-hmC) and teneleven-translocation proteins (TET1/2/3) in diagnosis and prognosis prediction of hepatocellular carcinoma (HCC).Methods The expression of 5-hmC in 130 cases of HCC tissues were detected by immunohistochemical staining.Kaplan-Meier test was used for survival analysis.TET family plays critical role in the conversion of 5-methylcytosine (5-mC) to 5-hmC.The TET levels were detected by using immunohistochemical staining and RT-PCR,the correlation between 5-hmC and TET was analyzed.Results The level of 5-hmC decreased in HCC tissues,as compared with non-tumor tissues,the expression of TET1 was downregulated in HCC.There was significant difference in the expression between low and high grades of HCC tissues (x2 =10.611,P =0.001).Kaplan-Meier survival analysis showed that there was significant difference between the 5-hmC expression level and the survival rate of HCC patients (x2 =4.412,P =0.036).Conclusions In HCC tissues the expression of 5-hmC was specifically downregulated.Low 5-hmC level is significantly correlated with poor differentiation of the tumor and worse overall survival.Decreased expression of TET1 is likely one of the mechanisms underlying 5-hmC loss in HCC.

14.
Chinese Medical Journal ; (24): 2096-2104, 2019.
Article in English | WPRIM | ID: wpr-774659

ABSTRACT

OBJECTIVE@#Dermoscopy is a useful technique for improving the diagnostic accuracy of various types of skin disorders. In China, dermoscopy has been widely accepted, and domestic researchers have made tremendous progress in the field of dermoscopy. The main purpose of this review is to summarize the current status of dermoscopy in China and identify its future directions.@*DATA SOURCES@#Articles included in this review were obtained by searching the following databases: Wanfang, China National Knowledge Infrastructure, PubMed, and the Web of Science. We focused on research published before 2019 with keywords including dermoscopy, dermoscopic, dermoscope and trichoscopy.@*STUDY SELECTION@#A total of 50 studies were selected. Of these studies, 20 studies were in Chinese and 30 in English, research samples of all the studies were collected from Chinese populations.@*RESULTS@#Since 2000, more than 380 articles about dermoscopy have been published in domestic or foreign journals. Dermoscopy can improve the diagnostic accuracy of neoplastic diseases, evaluating the therapeutic effect of treatment, and determining the treatment endpoint, and it can also assist in the differential diagnosis of inflammatory diseases and in the assessment of the severity of the disease. In addition, researches about the applications of dermoscopy during surgical treatment have been published. Training courses aiming to improve the diagnostic ability of dermatologists, either face-to-face or online, have been offered. The Chinese Skin Image Database, launched in 2017 as a work platform for dermatologists, has promoted the development of dermoscopy in China. Computer-aided diagnostic systems based on the Chinese population are ready for use. In the future, cooperation, resource sharing, talent development, image management, and computer-aided diagnosis will be important directions for the development of dermoscopy in China.@*CONCLUSION@#Dermoscopy has been widely used and developed in China, however, it still needs to address more challenges in the future.

15.
Chinese Pharmacological Bulletin ; (12): 846-850, 2018.
Article in Chinese | WPRIM | ID: wpr-705138

ABSTRACT

Aim To investigate whether Orai1 and BKCa form a physical and functional signal complex in glomerular mesangial cells ( GMCs) and reveal the role of high glucose treatment on Orai1-BKCa complex and SOCE-induced hyperpolarization. Methods The in-teraction of Orai1 and BKCa was evaluated by co-immu-noprecipitation ( co-IP ) . Western blot method was used to detect the expression levels of Orai1 and BKCa . SOCE was activated by Ca2+ depletion evoked by TG in normal glucose and high glucose. The DiBAC4(3) was employed as fluorescence indicator to measure the potential change of membrane. . Results The co-IP experiment results showed that Orai1 interacted with BKCa in GMCs. SOCE induced the hyperpolarization of GMCs. SOCE and SOCE-induced membrane hyperpol-orizaiton were enhanced by high glucose treatment for three days. In addition, the expression levels of Orai1 and BKCa were enhanced significantly in the high glu-cose-cultured cells. Conclusions Orai1 can form a signaling complex with BKCa , which participates in the regulation of hyperpolarization in GMCs and may be in-volved in the hyperpolarization in high glucose cultured GMCs.

16.
Article in Chinese | WPRIM | ID: wpr-701103

ABSTRACT

AIM:To investigate the enhancing effect of quercetin on the 5-fluorouracil-induced apoptosis in gastric cancer.METHODS: MTT assay was conducted to evaluate the effect of quercetin on the 5-fluorouracil-induced death of gastric cancer cell line BGC-823.Co-immunoprecipitation and Western blot analysis were performed to detect the expression of c-Jun and Bcl-xL,phosphorylation of c-Jun,activation of caspase-9 and caspase-3,and release of cytochrome C in BGC-823 cells treated with quercetin and 5-fluorouracil.The apoptosis of BGC-823 cells treated with quercetin and 5-fluorouracil was analyzed by flow cytometry.RESULTS: Adjuvant therapy of quercetin significantly enhanced the 5-fluorouracil-induced death of BGC-823 cells.Meanwhile, quercetin decreased the half maximal inhibitory concentration (IC50)of 5-fluorouracil to BGC-823 cells.Quercetin treatment significantly inhibited the expression of c-Jun,and inhibited the 5-fluorouracil-induced phosphorylation of c-Jun and the interaction between c-Jun and activating transcription factor 2 (ATF2).Subsequently,quercetin inhibited the up-regulation of Bcl-xL induced by 5-fluorouracil in the BGC-823 cells. However,transfection with c-Jun plasmid abolished the promoting effect of quercetin on 5-fluorouracil-induced cell death. In addition, quercetin promoted 5-fluorouracil-induced release of cytochrome C from mitochondria and caspase-dependent apoptosis in BGC-823 cells.CONCLUSION:Quercetin treatment enhances 5-fluorouracil-induced mitochondrial apoptosis in BGC-823 cells through c-Jun/ATF2/Bcl-xL pathway.

17.
Basic & Clinical Medicine ; (12): 480-484, 2018.
Article in Chinese | WPRIM | ID: wpr-693926

ABSTRACT

Objective To observe the protective effect of hydroxysafflor yellow A(HSYA) on anoxia/reoxygenation (A/R) injury of neonatal primary cardiomyocytes, and its relationship with phosphoinositide 3-kinase/protein ki-nase B/glycogen synthase kinase 3β(PI3K/Akt/GSK3β) signaling pathway. Methods Primary cardiomyocytes of neonatal rats were isolated from the rats and incubated for 48 hours. The cells were adhered to each other and then divided into five groups:control group (Con group), anoxia/reoxygenation group (A/R group),HSYA treatment group(A/R+H group),PI3K inhibitor (LY294002)treatment group(A/R+L group)and HSYA+LY294002 treat-ment group (A/R+H+L group),then to collect the supernatant fluid of each group to measure LDH.The flow cy-tometry was used to measure the apoptotic cells. The protein levels of Bcl-2,Bax,Akt,p-Akt (Ser473),GSK3β, p-GSK3β (Ser9) were evalated by Western blot. Results A/R increased LDH release,the apoptosis rate (P<0.001),and the expression of pro-apoptotic protein Bax (P <0.001) with the decrease of anti-apoptotic protein Bcl-2,p-Akt(Ser473), p-GSK3β(Ser9)(P<0.001) as compared with the control group. HSYA treatment de-creased LDH release,the apoptosis rate (P<0.001),and the expression of Bax (P<0.001) and increase the ex-pression of Bcl-2,p-Akt(Ser473),p-GSK3β(Ser9)(P<0.001). Compared with the A/R+H group,the expres-sion of Bax was increased (P<0.001),while the expression of Bcl-2, p-Akt(Ser473), p-GSK3β(Ser9)was de-creased (P<0.001) in the A/R+H+L group. Conclusions HSYA protects rats'cardiomyocytes from anoxia/reoxy-genation injury by regulating PI3K/Akt/GSK3β signaling pathway.

18.
Article in Chinese | WPRIM | ID: wpr-712673

ABSTRACT

Objective:To observe the clinical effect of lower-reinforcing and upper-reducing acupuncture method for hyperplasia of mammary gland (HMG) and its influence on estradiol (E2) and progesterone (P).Methods:A randomized,single-blinded and controlled trial was conducted.A total of 124 cases conforming to the inclusion criteria were randomized by random number table into a treatment group and a control group,with 62 cases in each group.Patients in both groups received acupuncture therapy at the same acupoints,while patients in the treatment group received lower-reinforcing and upper-reducing method,and patients in the control group received even reinforcing-reducing manipulation.The treatment started around 10 d before menstruation and was conducted every other day.Patients received 5 treatments in each menstruation cycle for consecutive 3 cycles.The levels of E2,P and E2/P and clinical efficacy were measured before and after treatment.Results:After treatment,the breast lump size,pain intensity and concomitant symptoms score in both groups were substantially lower than those before treatment,showing statistical significances (all P<0.01),and the improvement in the treatment group was higher than that in the control group,and the between-group comparisons showed statistical significances (all P<0.01).After treatment,the overall effective rate was 91.9% in the treatment group,higher than 72.6% in the control group,and the between-group comparison showed a statistical significance (P<0.01).After treatment,levels of E2,P and E2/P value showed no statistical significance when compared with those before treatment in the two groups (all P>0.05).Conclusion:Lower-reinforcing and upper-reducing acupuncture method can effectively alleviate clinical symptoms and signs in HMG patients,and produce a better effect than even reinforcing-reducing manipulation.The majority of HMG patients' E2,P level and E2/P value were not beyond the normal ranges;therefore,acupuncture showed no substantial influence on E2 and P levels and E2/P value.

19.
Article in Chinese | WPRIM | ID: wpr-658292

ABSTRACT

Objective To study the routine examination of Aconitum sinomontanum Nakai and determine the contents of lappacontine and ranaconitine; To provide basis for establishing the quality standard of Aconitum sinomontanum Nakai.Methods Aconitum sinomontanum Nakai were collected from different areas.A method of TLC was used for qualitative discrimination. The methods in the Chinese Pharmacopoeia were adopted for the determination of moisture content, ash content and extractives. Determination of lappacontine and ranaconitine were performed by HPLC. Results The TLC showed that the spots were clear and the separation was good. Individual provisional standards:the moisture,total ash and acid-insoluble ash content of Aconitum sinomontanum Nakai were not more than 11.0%, 12.0%, and 7.0%, respectively; water soluble and alcohol soluble extractives were not less than 18.2% and 10.6%,respectively.The content of ranaconitine and lappacontine in Aconitum sinomontanum Nakai were not less than 0.125% and 0.815%, respectively. Conclusion The method established by the study is accurate and reliable,and can be used for quality evaluation of Aconitum sinomontanum Nakai.

20.
Article in Chinese | WPRIM | ID: wpr-670445

ABSTRACT

Eleven patients with segmental fractures of the humeral shaft were treated with invasive percutaneous plate osteosynthesis (IPPO) technique combined with locking plate from June 2012 to November 2015.The patients were followed up for 6-18 months with an average of 11 months.All fractures were healed.There were no axillary nerve injury,wound infection,radial nerve palsy,internal fixation loosening,delayed union,nonunion and humeral head necrosis among all patients.The Constant-Murley function score was 86.5-± 2.2 at the last follow-up.The Neer shoulder function scores were excellent in 7 cases,good in 3 cases and fair in 1 case.The patients obtained good shoulder function.The results suggest that IPPO technique combined with locking plate to treat segmental fractures of the humeral shaft has the advantages of less trauma,early functional exercise and early functional recovery.

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