Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 45
Filter
1.
Front Microbiol ; 15: 1377314, 2024.
Article in English | MEDLINE | ID: mdl-38680925

ABSTRACT

This experiment aimed to examine the impact of Salicornia europaea L. extract on sheep growth performance, rumen fermentation variables, nutrient apparent digestibility, and gastrointestinal microbial diversity. Forty-eight male Altay sheep, weighing 32.5 ± 2.8 kg and approximately 3.5 months old, were chosen. Four dietary treatments, each consisting of four replicates and three sheep per replicate, were distributed randomly to the sheep. The pelleted total mixed ration containing Salicornia europaea L. extract at 0.0, 0.2, 0.4, and 0.6% DM was freely available to the sheep in the four treatment groups. The 56-day experiment consisted of 45 days of measurements followed by 11 days of adaptation. The growth performance was not affected by nutrition Salicornia europaea L. extract (p ≤ 0.05), but the feed-to-gain ratio was reduced when the extract was given at 0.4% DM (p ≤ 0.05). Compared to the 0 and 0.2% treatments, the apparent digestibility of DM, OM, NDF, and ADF was substantially greater in the 0.4, and 0.6% treatments. Furthermore, compared to sheep in the 0 and 0.2% groups, sheep in the 0.6% group had a noticeably higher apparent digestibility of CP. As the amount of Salicornia europaea L. extract added to the rumen fluid rose, the molar ratio of acetic acid increased. In contrast, the molar ratio of propionic acid gradually decreased, and the total volatile fatty acid content gradually reduced. Thus, adding a suitable quantity of Salicornia europaea L. extract to the sheep ration is natural and secure, which may improve the environmental sustainability of small ruminant production systems.

2.
Article in English | WPRIM (Western Pacific) | ID: wpr-982325

ABSTRACT

OBJECTIVES@#With the increasing detection rate of lung nodules, the qualitative problem of lung nodules has become one of the key clinical issues. This study aims to evaluate the value of combining dynamic contrast-enhanced (DCE) MRI based on time-resolved imaging with interleaved stochastic trajectories-volume interpolated breath hold examination (TWIST-VIBE) with T1 weighted free-breathing star-volumetric interpolated breath hold examination (T1WI star-VIBE) in identifying benign and malignant lung nodules.@*METHODS@#We retrospectively analyzed 79 adults with undetermined lung nodules before the operation. All nodules of patients included were classified into malignant nodules (n=58) and benign nodules (n=26) based on final diagnosis. The unenhanced T1WI-VIBE, the contrast-enhanced T1WI star-VIBE, and the DCE curve based on TWIST-VIBE were performed. The corresponding qualitative [wash-in time, wash-out time, time to peak (TTP), arrival time (AT), positive enhancement integral (PEI)] and quantitative parameters [volume transfer constant (Ktrans), interstitium-to-plasma rate constant (Kep), and fractional extracellular space volume (Ve)] were evaluated. Besides, the diagnostic efficacy (sensitivity and specificity) of enhanced CT and MRI were compared.@*RESULTS@#There were significant differences in unenhanced T1WI-VIBE hypo-intensity, and type of A, B, C DCE curve type between benign and malignant lung nodules (all P<0.001). Pulmonary malignant nodules had a shorter wash-out time than benign nodules (P=0.001), and the differences of the remaining parameters were not statistically significant (all P>0.05). After T1WI star-VIBE contrast-enhanced MRI, the image quality was further improved. Compared with enhanced CT scan, the sensitivity (82.76% vs 80.50%) and the specificity (69.23% vs 57.10%) based on MRI were higher than that of CT (both P<0.001).@*CONCLUSIONS@#T1WI star-VIBE and dynamic contrast-enhanced MRI based on TWIST-VIBE were helpful to improve the image resolution and provide more information for clinical differentiation between benign and malignant lung nodules.


Subject(s)
Adult , Humans , Retrospective Studies , Magnetic Resonance Imaging , Plasma , Tomography, X-Ray Computed , Lung
3.
Chinese Journal of Geriatrics ; (12): 176-181, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-993790

ABSTRACT

Objective:To explore the effect of Helicobacter pylori(HP)eradication on development of metachronous gastric cancer(MGC)after endoscopic submucosal dissection(ESD)in elderly patients with early gastric cancer.Methods:From January 2014 to December 2019, 748 early gastric cancer patients aged 60 years or older, receiving ESD in Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, were included.According to the situation of HP infection and eradication efficacy within 1 year postoperatively, patients were divided into three groups.The patients with HP infection and successful HP-eradication were enrolled into successful eradication group, those without eradicating or with eradication failure were enrolled into eradication failure group, those with HP negative were enrolled into HP-negative group.And then the occurrence and risk factors of MGC after ESD among the three groups were statistically analyzed.Results:MGC were detected in 58 cases(7.7%)in elderly patients with early gastric cancer after ESD.The median follow-up time was 39 months.The multivariate regression analysis results of MGC showed that no HP-eradication or HP eradication of failure( HR=2.231, 95% CI: 1.054-4.722, P=0.036)and multiple lesions( HR=1.857, 95% CI: 1.076-3.204, P=0.026)were independent risk factors.Non-smoking was a protective factor for the occurrence of MGC( HR=0.409, 95% CI: 0.234-0.716, P=0.002). After adjusting for confounding factors, Cox proportional risk regression analysis showed that the incidence of MGC was significantly higher in group of no HP-eradicating or HP-eradicating of failure than in group of successful HP-eradicating group( χ2=37.877, P<0.001). Conclusions:HP eradication can effectively prevent MGC in elderly patients with early gastric cancer after ESD.Multiple lesions and smoking are independent risk factors for MGC.

4.
Chinese Journal of Endemiology ; (12): 216-221, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-991608

ABSTRACT

Objective:To analyze the prevention and treatment of Kaschin-Beck disease in Fu County, Shaanxi Province, so as to provide basis for consolidating the results of Kaschin-Beck disease prevention and control and the treatment of patients with Kaschin-Beck disease.Methods:The epidemiological investigation of data and clinical data Kaschin-Beck disease from 1954 to 2022 were collected from the Fu County Institute for Endemic Disease Prevention and Control and People's Hospital of Fu County in Shaanxi Province, respectively. The retrospective study was used to investigate the prevention and control of Kaschin-Beck disease in Fu County through the adoption of comprehensive measures such as relocation, grain exchange, water improvement, conversion of farmland to forest and so on.Results:In 1954, there were 6 endemic townships and 127 endemic villages of Kaschin-Beck disease in Fu County, with a total population of 78 781. A total of 16 327 patients with Kaschin-Beck disease were detected by X-ray examination, with a detection rate of 20.72%, including 5 434 patients without clinical symptoms. There were 5 850 patients with clinical grade Ⅰ, 3 725 patients with clinical grade Ⅱ and 1 318 patients with clinical grade Ⅲ. In 1975, the first general survey of Kaschin-Beck disease was conducted in the whole county, with a total population of 101 341. A total of 9 575 patients with Kaschin-Beck disease were detected by X-ray examination, with a detection rate of 9.45%, including 3 247 cases without clinical symptoms. Among the patients with symptoms, there were 3 704 cases of clinical grade Ⅰ, 2 006 cases of clinical grade Ⅱ and 618 cases of clinical grade Ⅲ. The patients with Kaschin-Beck disease were mainly local residents, accounting for 93.92% (8 993/9 575). In 1997, 27 320 students aged 7 to 16 years in 342 schools of 15 townships were examined and found that there were 169 cases without clinical symptoms with X-ray changes, only 2 cases with clinical grade Ⅰ, and the detection rate decreased to 0.63%. In 1997, Fu County began to encourage relocation and grain exchange to prevent Kaschin-Beck disease. The relocation targets were mainly the seriously ill villages with new cases among children and poor living conditions. By 1999, a total of 100 households and 469 people were relocated, and by 2020, 1 569 households and 5 334 people were relocated. In 1997 and 1998, measures were taken to improve water quality in 43 natural villages in 6 townships, with 1 591 households and 7 375 people benefiting. In 2010, a general survey of Kaschin-Beck disease was conducted in 15 townships of Fu County, with a total population of 135 858, and 3 424 patients with Kaschin-Beck disease were detected by X-ray examination, with a detection rate of 2.52%. There were 2 885 cases with clinical symptoms, including 1 584 cases with clinical grade Ⅰ, 1 024 cases with clinical grade Ⅱ and 277 cases with clinical grade Ⅲ. Among them, 32 561 minors under 16 years old were examined, and 49 patients with Kaschin-Beck disease were detected by X-ray examination, with a detection rate of 0.15%, and all of them were clinical gradeⅠ patients. In 2014, a total of 73 600 people were surveyed in 170 endemic villages of Fu county, and 2 885 patients with Kaschin-Beck disease were detected by X-ray examination, with a detection rate of 3.92%. Compared with 2010, the number of patients with Kaschin-Beck disease increased zero, and there were no underage patients under the age of 16 for 4 consecutive years. By the end of 2016, 666.67 hm 2 of farmland had been converted to forest in Fu County, involving 9 townships (including communities), 33 administrative villages and 1 993 households. In 2018, another general survey of Kaschin-Beck disease was conducted in Fu County, with a total population of 157 362. A total of 2 308 patients were detected by X-ray examination, with a detection rate of 1.47%. Among them, there were 1 270 cases of clinical grade Ⅰ, 870 cases of clinical grade Ⅱ and 168 cases of clinical grade Ⅲ, and there were no patients with Kaschin-Beck disease under 16 years old in the county for 8 consecutive years (2011-2018). In the same year, 22 cases of Kaschin-Beck disease joint replacement were completed in Fu County, and by January 2022, about 60 cases had completed joint replacement. Conclusion:The prevention and control of Kaschin-Beck disease in Fu County has achieved remarkable results through comprehensive measures such as relocation, grain exchange, water improvement and conversion of farmland to forest.

5.
Preprint in English | bioRxiv | ID: ppbiorxiv-491588

ABSTRACT

Emerging severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) variants, especially the Omicron variant, have impaired the efficacy of existing vaccines and most therapeutic antibodies, highlighting the need for additional antibody-based tools that can efficiently neutralize emerging SARS-CoV-2 variants. The use of a "single" agent to simultaneously target multiple distinct epitopes on the spike is desirable to overcome the neutralizing escape of SARS-CoV-2 variants. Herein, we generated a human-derived IgG-like bispecific antibody (bsAb), Bi-Nab35B5-47D10, which successfully retained the specificity and simultaneously bound to the two distinct epitopes on RBD and S2. Bi-Nab35B5-47D10 showed improved spike binding breadth among wild-type (WT) SARS-CoV-2, variants of concern (VOCs) and variants being monitored (VBMs) compared with its parental mAbs. Furthermore, pseudotyped virus neutralization demonstrated that Bi-Nab35B5-47D10 can efficiently neutralize VBMs including Alpha (B.1.1.7), Beta (B.1.351) and Kappa (B.1.617.1) and VOCs including Delta (B.1.617.2), Omicron BA.1 and Omicron BA.2. Crucially, Bi-Nab35B5-47D10 substantially improved neutralizing activity against Omicron BA.1 (IC50= 27.3 ng/mL) and Omicron BA.2 (IC50= 121.1 ng/mL) compared with their parental mAbs. Therefore, Bi-Nab35B5-47D10 represents a potential effective countermeasure against SARS-CoV-2 Omicron and other variants of concern. ImportanceThe new highly contagious SARS-CoV-2 Omicron variant caused substantial breakthrough infections and has become the dominant strain in countries across the world. Omicron variants usually bear high mutations in the spike protein and exhibit considerable escape of most potent neutralization monoclonal antibodies and reduced efficacy of current COVID-19 vaccines. The development of neutralizing antibodies with potent efficacy against the Omicron variant is still an urgent priority. Here, we generated a bsAb, Bi-Nab35B5-47D10, that simultaneously targets SARS-CoV-2 RBD and S2 and improved neutralizing potency and breadth against SARS-CoV-2 WT and the tested variants compared with their parental antibodies. Notably, Bi-Nab35B5-47D10 has more potent neutralizing activity against the VOC Omicron pseudotyped virus. Therefore, Bi-Nab35B5-47D10 is a feasible and potentially effective strategy to treat and prevent COVID-19.

6.
Journal of Preventive Medicine ; (12): 263-267, 2022.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-920764

ABSTRACT

Objective@#To examine the correlation between frailty and lifestyle factors among middle-aged and elderly populations, so as to provide insights into the management of frailty among middle-aged and elderly populations.@*Methods @#Middle-aged and elderly residents at ages of 45 ot 69 years were recruited using the convenient sampling method from seven townships in Changxing County of Zhejiang Province from 2019 to 2020. The demographic characteristics and lifestyle factors were collected using questionnaires, and the frailty was measured using the Chinese version of Tilburg Frailty Indicator ( TFI ). Factors affecting frailty were identified among middle-aged and elderly populations using the multivariable logistic regression model.@*Results@#A total of 7 170 residents were surveyed, including 2 780 males ( 38.77% ) and 4 390 females ( 61.23% ), which had a median age of 56 (interquartile range, 10) years. The median frailty score was 2 (interquartile range, 3 ) among the study subjects, and the median frailty score was 2 ( interquartile range, 2 ) among residents at ages of 45 to 59 years, and 2 (interquartile range, 3) among residents at ages of 60 to 69 years. The overall detection of frailty was 16.07%, and the detection of frailty was 13.52% among subjects at ages of 45 to 59 years and 21.01% among subjects at ages of 60 to 69 years. Multivariable logistic regression analysis identified physical activity ( OR=0.826, 95%CI: 0.719-0.949 ) and sleep quality ( OR: 3.376-11.493, 95%CI: 2.907-15.808 ) as factors affecting frailty among middle-aged and elderly residents. Following age stratification, physical activity ( OR=0.817, 95%CI: 0.681-0.981 ) and sleep quality ( OR: 3.076-11.566, 95%CI: 2.518-18.216 ) as factors affecting frailty among subjects at ages of 45 to 59 years, while sleep quality ( OR: 3.777-11.827, 95%CI: 3.002-18.547 ) significantly correlated with frailty among residents at ages of 60 to 69 years.@*Conclusion@#Physical activity and sleep quality are associated with the risk of frailty among middle-aged and elderly populations.

7.
Preprint in English | bioRxiv | ID: ppbiorxiv-470356

ABSTRACT

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a global pandemic of novel corona virus disease (COVID-19). The neutralizing monoclonal antibodies (mAbs) targeting the receptor binding domain (RBD) of SARS-CoV-2 are among the most promising strategies to prevent and treat COVID-19. However, SARS-CoV-2 variants of concern (VOCs) profoundly reduced the efficacies of most of mAbs and vaccines approved for clinical use. Herein, we demonstrated mAb 35B5 efficiently neutralizes both wild-type (WT) SARS-CoV-2 and VOCs, including B.1.617.2 (delta) variant, in vitro and in vivo. Cryo-electron microscopy (cryo-EM) revealed that 35B5 neutralizes SARS-CoV-2 by targeting a unique epitope that avoids the prevailing mutation sites on RBD identified in circulating VOCs, providing the molecular basis for its pan-neutralizing efficacy. The 35B5-binding epitope could also be exploited for the rational design of a universal SARS-CoV-2 vaccine.

8.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-908836

ABSTRACT

Objective:To explore the effectiveness of blended learning in the clinical teaching of wound care clinic.Methods:Blended learning based on WeChat and offline CBL teaching method was constructed by applying evidence-based nursing. Totally 125 interns from the wound care clinic of our hospital were selected as subjects, among which 62 didn't receive the blended learning (control group), and 63 received the blended learning (observation group). At the end of the two-week practice, the effectiveness of the two teaching methods was compared. The objective evaluation was carried out in the forms of theory test, practice evaluation and comprehensive quality questionnaire combined with online self-test and offline practice. All data were analyzed by SPSS 20.0 statistical software.Results:The scores of theory test, practice evaluation and comprehensive quality assessment in the observation group were all higher than those in the control group ( P<0.001). Conclusion:The blended learning with WeChat as the medium can guide student active learning, consolidate the basic knowledge, improve the efficiency of teaching, stimulate the enthusiasm of practice, and improve the comprehensive quality. It's a clinical teaching method that can be used for reference.

9.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-883057

ABSTRACT

Objective:To construct the rehabilitation strategy of anterior cruciate ligament reconstruction based on the evidenced method and evaluate the effectiveness in clinic.Methods:The rehabilitation strategy was firstly built based on evidenced method. And then 80 patients from Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing University Medical School Affiliated Drum Tower Hospital from January to August, 2019 were randomly and equably sent to experiment group and control group. Patients in experiment group or control group were accepted the evidenced method or regular method as treatment strategy, respectively. The visual analogue scale (VAS), thigh circumference, motion range of knee joint and Lysholm score were recorded before and after surgery.Results:Six papers met the inclusion criterion and were been screen out from 1 535 papers, and then the evidenced rehabilitation strategy of anterior cruciate ligament reconstruction was made. The VAS scores in 12 and 24 h were 1(0-2), 1(1-3) in experiment group and 2(1-3), 3(1-3)in control group, the differences were significant between two groups( Z values were 4.955, 6.489, P<0.001). The motion ranges of knee joint in 2, 4, 6, 12 weeks after operation were (61.6±5.1)°, (85.3±6.6)°, (114.6±5.2)°, (127.6±3.4)° in experiment group and(54.9±4.6)°, (71.0±8.8)°, (105.1±5.9)°, (115.8±4.0) °in control group, the differences were significant between two groups( t values were 6.209-14.138, P<0.001). The Lysholm scores at 6,8,12 weeks after operation were 58.8±3.7, 71.1±3.1, 84.3±3.7 in experiment group and 56.0±3.4, 65.4±4.3, 75.6±3.0 in control group, the differences were significant between two groups( t values were 3.511, 6.867, 11.439, P<0.001). Conclusions:This evidenced rehabilitation strategy of anterior cruciate ligament reconstruction in this study was helpful to alleviating the pain, improving motion range of knee joint after anterior cruciate ligament reconstruction.

10.
Preprint in English | medRxiv | ID: ppmedrxiv-20187435

ABSTRACT

The adaptive immunity that protects patients from coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is not well characterized. In particular, the asymptomatic patients have been found to induce weak and transient SARS-CoV-2 antibody responses, but the underlying mechanisms remain unknown; meanwhile, the protective immunity that guide the recovery of these asymptomatic patients is also not well studied. Here, we characterized SARS-CoV-2-specific B-cell and T-cell responses in 10 asymptomatic patients and 49 patients with other disease severity (mild, n = 10, moderate, n = 32, severe, n = 7) and found that asymptomatic or mild symptomatic patients failed to mount virus-specific germinal center (GC) B cell responses that result in robust and long-term humoral immunity, assessed by GC response indicators including follicular helper T (TFH) cell and memory B cell responses as well as serum CXCL13 levels. Alternatively, these patients mounted potent virus-specific TH1 and CD8+ T cell responses. In sharp contrast, patients of moderate or severe disease induced vigorous virus-specific GC B cell responses and associated TFH responses; however, the virus-specific TH1 and CD8+ T cells were minimally induced in these patients. These results therefore uncovered the protective immunity in COVID-19 patients and revealed the strikingly dichotomous and incomplete adaptive immunity in COVID-19 patients with different disease severity, providing important insights into rational design of COVID-19 vaccines.

11.
Preprint in English | medRxiv | ID: ppmedrxiv-20164285

ABSTRACT

COVID-19 patients exhibit differential disease severity after SARS-CoV-2 infection. It is currently unknown as to the correlation between the magnitude of neutralizing antibody (NAb) responses and the disease severity in COVID-19 patients. In a cohort of 59 recovered patients with disease severity including severe, moderate, mild and asymptomatic, we observed the positive correlation between serum neutralizing capacity and disease severity, in particular, the highest NAb capacity in sera from the patients with severe disease, while a lack of ability of asymptomatic patients to mount competent NAbs. Furthermore, the compositions of NAb subtypes were also different between recovered patients with severe symptoms and with mild-to-moderate symptoms. These results reveal the tremendous heterogeneity of SARS-CoV-2-specific NAb responses and their correlations to disease severity, highlighting the needs of future vaccination in COVID-19 patients recovered from asymptomatic or mild illness.

12.
Preprint in English | medRxiv | ID: ppmedrxiv-20055475

ABSTRACT

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a global pandemic of novel corona virus disease (COVID-19). To date, no prophylactic vaccines or approved therapeutic agents are available for preventing and treating this highly transmittable disease. Here we report two monoclonal antibodies (mAbs) cloned from memory B cells of patients recently recovered from COVID-19, and both mAbs specifically bind to the spike (S) protein of SARS-CoV-2, block the binding of receptor binding domain (RBD) of SARS-CoV-2 to human angiotensin converting enzyme 2 (hACE2), and effectively neutralize S protein-pseudotyped virus infection. These human mAbs hold the promise for the prevention and treatment of the ongoing pandemic of COVID-19.

13.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-865995

ABSTRACT

Objective:To evaluate the quality of the final examination paper of the course Introduction to Nursing and analyze the students' performance, so as to provide objective basis for strengthening the course construction and continuously improving the teaching quality. Methods:SPSS 22.0 software was used to analyze the relevant data, descriptive statistics was carried out on the course scores and scores of different knowledge points of 58 nursing undergraduates in a college, and Pearson correlation analysis was used to analyze the relationship between students' examination scores and their usual scores. Based on the classical measurement theory, the difficulty coefficient, differentiation, reliability and validity of final examination papers were measured.Results:The average scores of students' usual performance, examination scores and total scores were 93.66, 67.07 and 75.19. The highest score of examination was 89, the lowest score was 52, the median was 65, the passing rate was 93.10%, and the number of students in 60-69 and 70-79 was 33 and 15 respectively. Among the 20 knowledge points examined, the passing rate of 10 knowledge points was less than 60%, and 5 of them<50%. There was a positive correlation between the test scores and the usual scores ( r=0.973, P<0.001). The difficulty coefficient of the final examination was P=0.329, the discrimination degree D=0.256, and the reliability r=0.734. Conclusion:The final examination are generally in line with the teaching requirements and are of good quality, but the final examination scores of the students are generally low. The students' usual scores are ideal, and their understanding, analysis and comprehensive application of knowledge points are poor.

14.
Article in English | WPRIM (Western Pacific) | ID: wpr-903914

ABSTRACT

Chromosomal region maintenance 1 (CRM1) is associated with an adverse prognosis in glioma. We previously reported that CRM1 inhibition suppressed glioma cell proliferation both in vitro and in vivo. In this study, we investigated the role of CRM1 in the migration and invasion of glioma cells. S109, a novel reversible selective inhibitor of CRM1, was used to treat Human glioma U87 and U251 cells. Cell migration and invasion were evaluated by wound-healing and transwell invasion assays. The results showed that S109 significantly inhibited the migration and invasion of U87 and U251 cells. However, mutation of Cys528 in CRM1 abolished the inhibitory activity of S109 in glioma cells. Furthermore, we found that S109 treatment decreased the expression level and activity of MMP2 and reduced the level of phosphorylated STAT3 but not total STAT3. Therefore, the inhibition of migration and invasion induced by S109 may be associated with the downregulation of MMP2 activity and expression, and inactivation of the STAT3 signaling pathway. These results support our previous conclusion that inhibition of CRM1 is an attractive strategy for the treatment of glioma.

15.
Article in English | WPRIM (Western Pacific) | ID: wpr-896210

ABSTRACT

Chromosomal region maintenance 1 (CRM1) is associated with an adverse prognosis in glioma. We previously reported that CRM1 inhibition suppressed glioma cell proliferation both in vitro and in vivo. In this study, we investigated the role of CRM1 in the migration and invasion of glioma cells. S109, a novel reversible selective inhibitor of CRM1, was used to treat Human glioma U87 and U251 cells. Cell migration and invasion were evaluated by wound-healing and transwell invasion assays. The results showed that S109 significantly inhibited the migration and invasion of U87 and U251 cells. However, mutation of Cys528 in CRM1 abolished the inhibitory activity of S109 in glioma cells. Furthermore, we found that S109 treatment decreased the expression level and activity of MMP2 and reduced the level of phosphorylated STAT3 but not total STAT3. Therefore, the inhibition of migration and invasion induced by S109 may be associated with the downregulation of MMP2 activity and expression, and inactivation of the STAT3 signaling pathway. These results support our previous conclusion that inhibition of CRM1 is an attractive strategy for the treatment of glioma.

16.
Invest New Drugs ; 37(4): 784-790, 2019 08.
Article in English | MEDLINE | ID: mdl-30740631

ABSTRACT

Liver cancer is a kind of high mortality cancer due to the difficulty of early diagnosis. It is necessary to develop the anticancer agents to treat liver cancer. Here, a novel chalcone derivative was synthesized and evaluated for anticancer activity in vitro against liver cancer cell lines (HepG2, SNU-423, SMMC7221, and SNU-398). The chalcone hybrid 9 displayed the antiproliferative effect against HepG2, SNU-423, SMMC7221 and SNU-398 cells with IC50 values of 0.9 µM, 2.7 µM, 6.2 µM and 4.6 µM, respectively. Cellular mechanisms showed that derivative 9 could obviously inhibit HepG2 cells growth and colony formation in a concentration-dependent manner. Analogue 9 inhibited the migration by regulating the expression levels of migration-releated markers and transcription factors (Snail and Slug). Tubulin polymerization inhibition assay illustrated that chalcone hybrid 9 might be a potent tubulin polymerization inhibitor. Importantly, compound 9 displayed the antitumor activity against liver cancer HepG2 cells in vivo with the low toxicity toward mice. Therefore, compound 9 as a novel tubulin polymerization inhibitor deserves further investigation to treat liver cancer. Graphical abstract Compound 9 displayed the antitumor activity against liver cancer HepG2 cells in vivo and low toxicity toward mice Figure: Orally antitumor chalcone hybrid 9 inhibited HepG2 cells growth and migration as the tubulin binding agent.


Subject(s)
Antineoplastic Agents/pharmacology , Chalcones/pharmacology , Tubulin Modulators/pharmacology , Administration, Oral , Animals , Cell Line, Tumor , Cell Movement/drug effects , Cell Proliferation/drug effects , Humans , Mice, Nude , Tubulin/metabolism
17.
Journal of Preventive Medicine ; (12): 325-329, 2019.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-815767

ABSTRACT

Objective @#To investigate the knowledge,attitude and practice of salt reduction for hypertension prevention among residents in Liandu District of Lishui,and to provide reference for intervention of salt reduction.@*Methods @#Residents aged 18-69 years in two communities and three towns of Liandu District were selected by multistage stratified random sampling method. They were investigated the prevalence of hypertension and knowledge,attitude and practice of salt reduction for hypertension prevention. Logistic regression models were used to analyze the influencing factors for knowledge,attitude and practice of salt reduction for hypertension prevention.@*Results @#Among 1 801 participants,1 509 completed the survey,with a response rate of 83.79%. The prevalence of hypertension was 31.88%. The proportions of the participants who had knowledge, attitude and practice of salt reduction for hypertension prevention were 33.40%,60.70% and 58.58%,respectively. The results of multivariate logistic regression analysis showed that women(OR=1.583,95%CI:1.248-2.008),hypertension(OR= 1.734,95%CI:1.303-2.308),30 to 39 years old(OR=0.368,95%CI:0.226-0.597),junior high school and above education(OR=0.057-0.403,95%CI:0.036-0.577)were the influencing factors for the knowledge of salt reduction for hypertension prevention;women(OR=1.342,95%CI:1.072-1.679),married(OR=1.582,95%CI:1.167-2.144),junior or senior high school education(OR=0.235-0.525,95%CI:0.163-0.736),having the knowledge(OR=2.640,95%CI:2.033-3.430)were the influencing factors for the attitude of salt reduction for hypertension prevention;women(OR=1.632,95%CI:1.304-2.044),30 to 39 years old(OR=0.494,95%CI:0.346-0.705),rural residents(OR= 1.617,95%CI:1.276-2.050),family history of chronic diseases(OR=1.455,95%CI:1.148-1.845),having the knowledge(OR= 1.396,95%CI:1.084-1.797),having the attitude(OR=4.059,95%CI:3.203-5.145)were the influencing factor for the practice of salt reduction for hypertension prevention.@*Conclusion @#The residents in Liandu District had low levels of the knowledge,attitude and practice of salt reduction for hypertension prevention. The higher levels of the knowledge and attitude of salt reduction for hypertension prevention,the higher level of the practice.

18.
Journal of Preventive Medicine ; (12): 124-127, 2019.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-815707

ABSTRACT

Objective @#To evaluate the risk of cardiovascular disease in hypertensive patients managed by communities in Tongxiang in the next 10 years,and to provide evidence for the development of cardiovascular disease prevention strategies. @*Methods@#The information about hypertensive patients managed by communities was collected from Tongxiang resident health records management system. The risk of ischemic cardiovascular disease(ICVD)in the next 10 years was assessed by the Assessment Scale of 10-Year ICVD Risk in Chinese.@*Results@# A total of 27 173 hypertensive patients managed by communities with complete data were recruited,including 11 868 males,accounting for 43.68%,and 15 305 females,accounting for 56.32%. The median(inter-quartile range)of the total scores of 10-year ICVD risk in hypertensive patients was 8.00(3.00),with 9.00(2.00)in males and 8.00(2.00)in females. The total scores of 10-year ICVD risk in males was significantly higher than those in females(P<0.05). A total of 8 764 patients had high 10-year ICVD risk,accounting for 32.25%. The proportion of high10-year ICVD risk in females with hypertension was higher than that in males(P<0.05). The weights of ICVD risk factors in males were 54.58% in age,17.42% in systolic blood pressure,14.27% in smoking,7.77% in body mass index,4.51% in total cholesterol and 1.45% in diabetes;the ones in females were 63.57% in age,14.63% in systolic blood pressure,9.81% in body mass index,6.00% in total cholesterol,5.88% in diabetes and 0.11% in smoking.@*Conclusion @#The ICVD risk of hypertensive patients managed by communities in Tongxiang is higher in the next 10 years. Male patients should focus on the control of blood pressure and smoking,while female patients should focus on the control of blood pressure and body weight.

19.
Journal of Preventive Medicine ; (12): 683-687, 2019.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-815689

ABSTRACT

Objective @#To explore the positive rates and influencing factors of depression and anxiety among managed diabetic patients in community and to provide evidence for the future mental health intervention.@*Methods@#Random sampling method was used to select the diabetic patients from the local health information platform in Ningbo. The anxiety and depression symptoms of the diabetic patients were evaluated by 9-Item Patient Health Questionnaire(PHQ-9)and 7-Item Generalized Anxiety Disorder Scale(GAD-7). Logistic regression model was applied to analyzing the influencing factors for anxiety and depression in diabetic patients.@*Results@#A total of 1 032 diabetic patients were enrolled,with a response rate of 91.98%. The positive rate of depression was 9.01% and the positive rate of anxiety was 3.78%. The results of multivariate logistic regression analysis showed that divorced/widowed(OR=3.046,95%CI:1.522-6.100),having two comorbidities or more(OR=6.723,95%CI:2.495-18.120)and suffering diabetes for more than ten years(OR=2.668,95%CI:1.406-5.062)were the risk factors for depression in diabetic patients,while having a college education or above(OR=0.288,95%CI:0.093-0.893)was the protective factor for depression in diabetic patients;unmarried(OR=13.244,95%CI:1.268-138.377),having two comorbidities or more(OR=6.979,95%CI:2.164-22.503) and suffering diabetes for more than ten years(OR=3.109,95%CI:1.241-7.787)were the risk factors for anxiety in diabetic patients.@*Conclusion@#Marital status,the number of comorbidity,course of diabetes and education level could affect the occurrence of depression in diabetic patients;marital status,the number of comorbidity and course of diabetes could affect the occurrence of anxiety in diabetic patients.

20.
Journal of Preventive Medicine ; (12): 669-672, 2019.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-815678

ABSTRACT

Objective@#To investigate the sodium,potassium and blood pressure of adult residents in Liandu District of Lishui,and to provide evidence for salt reduction intervention.@*Methods@#A stratified random sampling method was used to select residents aged 18 to 69 years in Liandu District from December 2016 to February 2017. A questionnaire survey and physical examination were conducted to collect basic information. The 24-hour urine samples were collected to detect sodium and potassium intake.@*Results@#Among 300 participants,the average daily intake of sodium was(10.59±3.90)g,which was higher in men than in women [(11.11±4.33)g vs.(10.08±3.37)g,P<0.05]. There were 274 participants with average daily intake of sodium more than 6 g,accounting for 91.33%. The average daily intake of potassium was(1.67±0.71)g,which was higher in women than in men [(1.77±0.72)g vs.(1.57±0.68)g,P<0.05]. The average daily intakes of potassium were significantly different among different age groups,with participants aged 20 to 29 years the lowest(P<0.05). There were 217 participants with average daily intake of potassium less than 2 g,accounting for 72.33%. The ratio of sodium to potassium was 4.7±2.2,which was higher in men than in women(5.3±2.7 vs. 4.1±1.4,P<0.05)and decreased with age(P<0.05). There were 291 participants with the ratio more than 1.87,accounting for 97.00%. The prevalence of hypertension was 31.67%,which was 33.65% in men and 29.80% in women.@*Conclusion@#The residents in Liandu District have high intake of sodium and prevalence of hypertension,yet low intake of potassium.

SELECTION OF CITATIONS
SEARCH DETAIL
...