bluuebunny/crossref_metadata_2025_split huggingface dataset:
miR-373-3p inhibits EMT via regulation of TGFβR2 in choriocarcinoma
Authors: lu yanjie , Li Xiaoru , Zuo Yanzhen , xu qian , liu lei , wu haiying , chen long , zhang ying , fan wenjing , liu ying , li yuhong 
Published: March 2020

Abstract
Background: Previous studies have indicated that early metastasis is a major cause of mortality in patients with choriocarcinoma. However, what determines whether early metastasis of choriocarcinoma has occurred is unknown. The emerging role of miRNA in regulating cancer development and progression has been recognized. MiR-373 has been shown to play pivotal roles in tumorigenesis and metastasis. However, whether miR-373 functions to promote choriocarcinoma metastasis is not clear. The purpose of this study is to determine the function of miR-373-3p in the progression of this cancer. Methods: In this study, we first compared epithelial-to-mesenchymal transition (EMT)-related markers, which were inversely correlated with miR-373-3p expression, in trophoblast and choriocarcinoma cell lines. Using PCR and Western blot, upregulation of miR-373-3p was observed to inhibit EMT progression. Similarly, gain- and loss-of-function studies revealed that ectopic miR-373-3p overexpression inhibited the metastasis of choriocarcinoma cells. Results: Our results revealed that miR-373-3p acted as an EMT inhibitor in JEG-3 and JAR cells; this was due to its mediation of the TGF-β signalling pathway, which was responsible for EMT. Bioinformatic analysis demonstrated that miR-373-3p interacted with the 3' untranslated region of TGFβR2 mRNA, and then Western blot and dualluciferase reporter gene assays verified this interaction. Conclusions: Our findings suggest that miR-373-3p upregulation partly accounts for TGFβR2 downregulation and leads to a restraint of EMT and metastasis. MiR-373-3p may therefore serve as a valuable potential target in the treatment of choriocarcinoma.
Midbrain/pons area ratio and clinical features predict the prognosis of Progressive Supranuclear Palsy
Authors: cui shishuang , ling huawei , du juanjuan , lin yiqi , pan jing , zhou haiyan , wang gang , wang ying , xiao qin , liu jun , tan yuyan , chen shengdi 
Published: March 2020

Abstract
Backgrounds: Progressive Supranuclear Palsy (PSP) is a rare movement disorder with poor prognosis. This retrospective study aims to characterize the natural history of PSP and to find predictors of shorter survival and faster decline of activity of daily living.
Method: All patients recruited fulfilled the movement disorder society (MDS) clinical diagnostic criteria for PSP (MDS-PSP criteria) for probable and possible PSP with median 12 years. Data were obtained including age, sex, date of onset, age at onset (AAO), symptoms reported at first visit and follow-up, date of death and date of institutionalization. Magnetic resonance imaging was collected at the first visit. Endpoints were death and institutionalization. Kaplan-Meier method and Cox proportional hazard model were used to explore factors associated with early death and institutionalization.
Results: 59 patients fulfilling MDS-PSP criteria were enrolled in our study. 19 patients (32.2%) had died and 31 patients (52.5%) were institutionalizedl by the end of the follow-up. Predictors associated with poorer survival were late-onset PSP and decreased M/P area ratio. Predictors associated with earlier institutionalization were older AAO and decreased M/P area ratio.
Conclusion: older and decreased M/P area ratio were predictors for earlier dearth and institutionalization in PSP. The neuroimaging biomarker M/P area ratio was a predictor for prognosis in PSP.
Relationships of Accelerometer-based Measured Objective Physical Activity and Sedentary Behaviour with Cognitive Function: A Comparative Cross-sectional Study of China’s Elderly Population
Authors: Wu Zhi jian , Wang Zhu ying , Hu Bing qian , Zhang Xu hui , Zhang Fan , Wang Hou lei , Li Fang hui 
Published: March 2020

Abstract
Background: This study explored the effects of physical activity and sedentary behaviour on the decline of cognitive ability among the elderly. To compensate for the limitations of self-reported physical activity, objective measures were used. Methods: A cross-sectional survey of 308 aged people mean 68.66±5.377 years, in Nanjing, China, was conducted. Physical activity was measured using the ActiGraph GT3X+, and cognitive function was measured using the Montreal Cognitive Assessment. Results: The overall participant model, adjusted for age, BMI, education, and monthly average income, found that light physical activity (β=0.006, p<0.01), moderate-vigorous physical activity (β=0.068, p<0.001), and total physical activity (β=0.006, p<0.01) had a significant linear relationship with cognitive ability, while sedentary time did not (β=-0.020, p＞0.05). Further, light physical activity only affects the cognitive ability of elderly females (β=0.006, p<0.05). There was an inverted ‘U’ association between moderate-vigorous physical activity and cognitive ability. The association models found that moderate-vigorous physical activity in the 22.13 min·day–1～38.79 min·day–1 range affected cognitive ability most beneficially, with the highest beta coefficient among all groups (β=0.091, p<0.05). Conclusions: While physical activity can significantly improve cognitive ability among the elderly, sedentary behaviour is associated with decreased cognitive function across genders.
Predictors of the use of analgesic drugs 1 year after joint replacement: a single-center analysis of 13,000 hip and knee replacements
Authors: Rajamäki Tuomas , Moilanen Teemu , Puolakka Pia A. , Hietaharju Aki , Jämsen Esa 
Published: March 2020

Abstract
Background Pain persists in a moderate number of patients following hip or knee replacement surgery. Persistent pain may subsequently lead to the prolonged consumption of analgesics after surgery and expose patients to the adverse drug events of opioids and NSAIDs, especially in older patients and patients with comorbidities. This study aimed to identify risk factors for the increased use of opioids and other analgesics one year after surgery and focused on comorbidities and surgery-related factors. Methods All patients who underwent a primary hip or knee replacement for osteoarthritis from 2002 to 2013 were identified. Redeemed prescriptions for acetaminophen, non-steroidal anti-inflammatory drugs (NSAIDs), and opioids (mild and strong) were collected from a nationwide Drug Prescription Register. The user rates of analgesics and the adjusted risks ratios for analgesic use one year after joint replacement were calculated. Results Of the 6,238 hip replacement and 7,501 knee replacement recipients, 3,591 (26.1%) were still using analgesics one year after surgery. Significant predictors of overall analgesic use (acetaminophen, NSAID, or opioid) were (risk ratio (95% CI)) age 65-74.9 years (reference <65), 1.1 (1.03-1.2), age > 75 years, 1.2 (1.1-1.3), female gender, 1.2 (1.1-1.3), BMI 30-34.9 kg/m2 (reference <25kg/m2), 1.1 (1.04-1.2), BMI >35 kg/m2, 1.4 (1.3-1.6), a higher number of comorbidities (according to modified Charlson Comorbidity Index score), and 1.2 (1.1-1.4). Diabetes and other comorbidities were not significant independent predictors. Of the other clinical factors, the preoperative use of analgesics, 2.6 (2.5-2.8) and knee surgery, 1.2 (1.1-1.3), predicted the use of analgesics, whereas simultaneous bilateral knee replacement (compared to unilateral procedure) was a protective factor, 0.86 (0.77-0.96). Opioid use was associated with obesity, higher CCI score, epilepsy, knee vs hip surgery, unilateral vs bilateral knee operation, total vs unicompartmental knee replacement, and the preoperative use of analgesics/opioids. Conclusions Obesity (especially BMI >35 kg/m2) and the preoperative use of analgesics were the strongest predictors of an increased postoperative use of analgesics. It is remarkable that also older age and higher number of comorbidities predicted analgesic use despite these patients being the most vulnerable to adverse drug events.
Effectiveness comparison of Zero-profile interbody fusion implant and anterior cervical plate interbody fusion device: a clinical and radiological study
Authors: Zhang Jun , Tang Xiangyu , Xiong Wei , Wu Hua , Author) Chaoxu Liu(Former Corresponding , Author) Feng Li(New Corresponding 
Published: March 2020

Abstract
Background Anterior cervical discectomy and fusion (ACDF) is a successful strategy to relieve the symptoms caused by cervical degenerative disease. Postoperative dysphagia is one complication of this kind of surgery. We performed this study to compare the clinical outcomes, radiographic parameters, and complications of　ACDF with a Zero-profile implant (Zero-P) and titanium plate and cage.Methods There were 68 patients received ACDF of single level, 35 patients with Zero-profile implant (Zero-p group) and 33 patients with traditional plate and cage (Cage group), from C3–C7 during 2014 to 2016. Collecting and analyzing of clinical and radiological data were performed. Patients were followed-up at least 1 year after surgery. The operation time, blood loss, Japan Department of Orthopedics Association (JOA) score, pain Visual Analogue Score (VAS), Neck Disability Index (NDI) score and dysphagia score were recorded. Additionally, changes in cervical lordosis, fusion rate and adjacent segment degeneration were analyzed as well.Results For neurologic outcomes, the JOA, VAS and NDI were statistically equivalent between the two groups (P>0.05). For radiographic outcomes, there were no significant differences in the C2-7 Cobb angles, segmental Cobb angle and incidence of subsidence at the final follow-up (P>0.05). No degenerative changes was found in the Zero-p group, whereas 5 patients in the Cage group developed degeneration in adjacent segments (P<0.05). Also, the incidence of postoperative dysphagia is higher in Cage group than in Zero-p group at 3 months and 12 months (P<0.05).Conclusions Both Zero-profile implant and anterior cervical plate interbody fusion device were demonstrated to be effective and safe strategies in this study. Considering the lower incidences of dysphagia and degenerative changes, the Zero-profile implant is a good succedaneum.
Trends in Measures of Handgrip Strength from 2014 to 2017 Among Korean Adolescents using the Korean National Health and Nutrition Examination Survey Data
Authors: Kang Yunkoo , Kim Jieun , Kim Seung , Park Sowon , Lim Hyunjung , Koh Hong 
Published: March 2020

Abstract
Object: Measuring handgrip strength is a useful method to evaluate sarcopenia. No study has shown the trends of muscle quality among Korean adolescents by year. This study aimed to determine the trends of handgrip strength among Korean adolescents using data from the Korea National Health and Nutrition Examination Survey (KNHANES). Data of 2,304 adolescents who participated in the KNHANES between 2014 and 2017 were obtained. Muscle quality was estimated by dividing handgrip strength by body weight (handgrip-to-weight ratio). The handgrip-to-weight ratios were categorized by age, sex, and year. Results: Handgrip strength in adolescents decreased from 28.67kg in 2014 to 27kg in 2017. (P for trend<0.05) The handgrip-to-weight ratio also decreased from 51.48 in 2014 to 48.18 in 2017 (P for trend<0.05). The handgrip strength and handgrip-to-weight ratio also decreased among boys and girls over the years 2014–2017 (P for trend<0.05). The results of the present study indicate that the handgrip-to-weight ratio decreased in Korean adolescents from the years 2014 to 2017, and a declining overall ratio indicates a decrease in the quality of muscles among Korean adolescents. Hence, there is a need to review the health status of Korean adolescents.
Withanone from Withania somnifera May Inhibit Novel Coronavirus (COVID-19) Entry by Disrupting Interactions between Viral S-Protein Receptor Binding Domain and Host ACE2 Receptor
Authors: Balkrishna Acharya , POKHREL SUBARNA , Singh Jagdeep , Varshney Anurag 
Published: March 2020

Abstract
Background Newly emerged COVID-19 has been shown to engage the host cell ACE2 through its spike protein receptor binding domain (RBD). Here we show that natural phytochemical from a medicinal herb, Withania somnifera, have distinct effects on viral RBD and host ACE2 receptor complex. Methods We employed molecular docking to screen thousands of phytochemicals against the ACE2-RBD complex, performed molecular dynamics (MD) simulation, and estimated the electrostatic component of binding free energy, along with the computation of salt bridge electrostatics. Results We report that W. somnifera compound, Withanone, docked very well in the binding interface of AEC2-RBD complex, and was found to move slightly towards the interface centre on simulation. Withanone significantly decreased electrostatic component of binding free energies of ACE2-RBD complex. Two salt bridges were also identified at the interface; incorporation of Withanone destabilized these salt bridges and decreased their occupancies. We postulate, such an interruption of electrostatic interactions between the RBD and ACE2 would block or weaken COVID-19 entry and its subsequent infectivity. Conclusion Our data, for the first time, show that natural phytochemicals could well be the viable options for controlling COVID-19 entry into host cells, and W. somnifera may be the first choice of herbs in these directions to curb the COVID-19 infectivity.
Determinants of life satisfaction and self-rated health in Iranian children and adolescents: A structure equation model
Authors: Angoorani Pooneh , Mahmoodi Zohreh , Ejtahed Hanieh-Sadat , Heshmat Ramin , Motlagh Mohammad Esmaeil , Qorbani Mostafa , Kelishadi Roya 
Published: March 2020

Abstract
Background Life satisfaction (LS) and self-rated health (SRH) are related with health outcomes. It is expected that these items are also related to healthy behaviors. Therefore, this study was conducted in order to find out the main determinants of LS and SRH in nationwide representative sample of Iranian children and adolescents. Methods This study was performed on 13834 students aged 7-18 years who were selected by multistage, stratified cluster sampling method from 30 provinces of Iran. LS and SRH were assessed through a questionnaire based on World Health Organization-Global School-based Student Health Survey protocols. Path analysis was applied to evaluate the relationships among the study variables using the structural modeling. Results LS was directly affected by age (-0.037 in boys & -0.028 in girls); sedentary time (0.055 in boys & 0.048 in girls); school satisfaction (0.249 in boys & 0.250 in girls); and well-being (0.186 in boys & 0.176 in girls). SRH was directly affected by LS (0.28 in boys & girls) and school satisfaction (0.21 in boys & 0.22 in girls); and indirectly affected by age (-0.046 in boys & -0.017 in girls); sedentary time (-1.99 in boys & -0.145 in girls); family size (-0.005 in boys & -0.014 in girls); and socio-economic status (0.015 in boys & 0.058 in girls). Conclusions This study indicated that school satisfaction had the greatest positive direct effect on both LS and SRH.
Effects of directly added or reaction formed TiB2 on the microstructure and mechanical properties of pressureless-sintered B4C–TiB2 composites
Authors: Li Zongjia , Wang Yangwei , Cheng Huanwu , Zhu Yu , An Rui , Fang Haiyan , Feiya Aili , Han Baofeng 
Published: March 2020

Abstract
The boron carbide matrix composites containing boron carbide (B 4 C), titanium diboride (TiB 2 ; 20 wt% and 30 wt%) and titanium carbide (TiC) were fabricated at 2130 °C using the pressureless sintering method. Different amounts of TiB 2 and TiC particles were added to B 4 C, and the TiB 2 content was chosen as the main variable to study the effect on the composites. The density, hardness, bending strength and fracture toughness measurements were performed to obtain the physical and mechanical properties of the samples. The obtained results indicate that by adding 30 wt% TiB 2 submicron particles at 2130 °C, the bending strength and fracture toughness of 277.6 MPa and 5.38 MPa·m 1/2 are obtained for the composite. The particle pullout and crack microbridging play an effective role in toughening the composite ceramics. The main toughening mechanisms of the B 4 C-TiB 2 composites are noted to be microcrack and crack deflection toughening owing to the residual stresses resulting from the mismatch of the thermal expansion coefficient between TiB 2 and B 4 C.
A facile approach for obtaining NiFe­2O4/C nanocomposites and their magnetic properties assessment
Authors: Bakhshi Hamed , Azari Maryam Mohammad , Shokuhfar Ali 
Published: March 2020

Abstract
NiFe2O4/C nanocomposites were prepared using the two-step process, including reverse microemulsion followed by thermochemical vapour deposition (TCVD). Micelles made in the first step worked well and NiFe2O4 nanoparticles owing sizes smaller than 10 nanometer with narrow size distribution were obtained. Acetylene gas was used as a carbon source for deposition on the surface of NiFe2O4 nanoparticles. Coating applied for 1 and 2 h at 700°C and resulted in an enhancement of NiFe2O4 nanoparticle size to a level of 30 nanometer. Powder X-ray diffraction (PXRD) patterns revealed the spiel formation for all samples; however, the crystallinity of them has been increased as much as temperature rose to a level of coating. Fourier transform infrared spectroscopy (FT-IR) verified the metal-oxygen bonding linked to the octahedral and tetrahedral vibrations. Micro-Raman spectra for the coated samples were recorded as well, and the results confirmed the existence of ordered and disordered carbon-based materials in nanocomposites. It is noteworthy to mention that, in the sample with 2 h coating time, the defect densities were lower than the sample with an hour coating time. The vibration sample magnetometer (VSM) was also used to investigate the magnetic properties. The as-prepared sample behaves like a superparamagnetic matter; however, the coated ones behave like ferromagnetic materials. The saturation magnetization and coercivity of coated samples were lower than their bulk counterparts which was due to their smaller size.
Transforming UNICEF’s approach to Health System Strengthening: What place can a blended learning course play?
Authors: Naccarella Lucio , McPake Barbara , Dayal Prathna , Gikonyo Waithira , Torrealba Claudia Vivas , Morgan Alison 
Published: March 2020

Abstract
Background
UNICEF published their Health System Strengthening (HSS) approach to meet its strategic goals of ending preventable maternal, newborn and child deaths and promoting the health and development of all children and reducing inequities in health in 2016. UNICEF commissioned the University of Melbourne’s Nossal Institute for Global Health to develop and deliver a pilot blended HSS program , involving 60 hours of online learning and two weeks of face-to-face teaching over a six- month period. To assess the extent to which the HSS program had built the first 83 UNICEF 2017 graduates’ capabilities to apply HSS actions by 2017, UNICEF funded an independent evaluator from the University of Melbourne.
Methods
A mixed-methods assessment was conducted using: online surveys of graduates at: enrolment, completion, 6-months post HSS program ; nine focus groups with graduates at face-to-face workshops; and interviews with purposive samples of UNICEF graduates and graduate Senior Managers 12-months post HSS program .
Results
The HSS program content, structure and mode of delivery was positively received. Graduates reported increased confidence taking HSS actions and multiple changes in work practices (e.g., increased systems thinking and using of health system-based approaches). Graduates’ Senior Manager interviews revealed mixed impressions of graduates applying HSS actions, partly explained by the fit between the HSS program learnings and UNICEF’s workplace environment. Key contextual factors influencing graduates applying HSS actions included: workload; limited opportunities to apply HSS actions; limited HSS examples; and variable support to apply HSS actions. Graduate and Senior Manager suggestions to optimise applying HSS actions included: linking HSS program content with UNICEF priorities; increasing opportunities for graduates to apply HSS actions; increasing access to HSS support.
Conclusions
The paper concludes by presenting HSS program and assessment suggestions from the 2017 UNICEF Pilot HSS program assessment and actions taken for the 2018 UNICEF staff cohorts by HSS program developers, funders and beneficiaries.
Clinical features and treatment of “Non-dislocated hyperextension tibial plateau fracture”
Authors: jiang liangjun , zheng qiang , pan zhijun , zhu hanxiao , chen erman 
Published: March 2020

Abstract
Background To explore the epidemiological characteristics, clinical characteristics, treatment strategies and clinical results of non-dislocated hyperextension tibial plateau fracture. Method A total of 25 cases of non-dislocated hyperextension tibial plateau fracture patients were collected, including 12 males and 13 females, aged 27-79 years. Preoperative tibial plateau posterior slope angle was - 10 ~ 0 degrees, average - 5.2 degrees. Preoperative MRI showed 5 cases of MCL injury, 3 cases of PLC complex injury and 2 cases of PLC + PCL injury. The change of tibial plateau posterior slope angle was more than 10 degrees in patients with ligament injury, and the patients with a tibial plateau posterior slope angle change less than 10 degrees had no ligament injury; 6 patients with simple column fracture had a ligament injury, 2 patients with bilateral column fracture had a ligament injury, and 2 patients with three column fracture had a ligament injury. Results All patients were followed up for 12-24 months (average 16.4 months). The operation time was 65-180 minutes (average 124 minutes), and the bleeding volume was 20-200 ml (average 106 ml). The plate was placed on the anterior part of tibial plateau. Evaluation of postoperative fracture reduction: 20 cases were anatomic reduction, 5 cases were good reduction (between 2-5mm articular surface collapse), and the excellent rate of fracture reduction was 100%. The fracture healing time was 3-6 months (average 3.3 months). The postoperative knee Rasmussen score was 18-29 (average 24.9), and the postoperative knee joint mobility was 90-130 ° (average 118 °). Superficial infection occurred in 2 patients. Conclusions The main imaging characteristic of "non-dislocated hyperextension tibial plateau fracture" is the change of tibial plateau posterior slope angle. The injury of single anteromedial column/anterolateral column fracture is easy to combine with "diagonal" injury, and when the tibial plateau posterior slope angle changes more than 10 degrees, it is easy to be associated with ligament injury. By restoring the joint articular surface and lower limb force line, repairing the soft tissue structure, and reconstructing the knee joint stability, we can achieve satisfactory results.