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1.
Ann Med ; 56(1): 2346537, 2024 Dec.
Article in English | MEDLINE | ID: mdl-38696817

ABSTRACT

BACKGROUND: To investigate the effectiveness of the intervention with critical value management and push short messaging service (SMS), and to determine improvement in the referral rate of patients with positive hepatitis C antibody (anti-HCV). METHODS: No intervention was done for patients with positive anti-HCV screening results from 1 January 2015 to 31 October 2021. Patients with positive anti-HCV results at our hospital from 1 November 2021 to 31 July 2022 were informed vide critical value management and push SMS. For inpatients, a competent physician was requested to liaise with the infectious disease physician for consultation, and patients seen in the OPD (outpatient department) were asked to visit the liver disease clinic. The Chi-square correlation test, one-sided two-ratio test and linear regression were used to test the relationship between intervention and referral rate. RESULTS: A total of 638,308 cases were tested for anti-hepatitis C virus (HCV) in our hospital and 5983 of them were positive. 51.8% of the referred patients were aged 18-59 years and 10.8% were aged ≥75 years. The result of Chi-square correlation test between intervention and referral was p = .0000, p < .05. One-sided two-ratio test was performed for statistics of pre-intervention referral rate (p1) and post-intervention referral rate (p2). Normal approximation and Fisher's exact test for the results obtained were 0.000, p < .05, and the alternative hypothesis p1 - p2 < 0 was accepted. The linear regression equation was referral = 0.1396 × intervention + 0.3743, and the result model p = 8.79e - 09, p < .05. The model was significant, and the coefficient of intervention was 0.1396. CONCLUSIONS: The interventions of critical value management and push SMS were correlated with the referral rate of patients with positive anti-HCV.


Subject(s)
Hepatitis C , Referral and Consultation , Humans , Referral and Consultation/statistics & numerical data , Middle Aged , Male , Female , Adult , Aged , Adolescent , Hepatitis C/drug therapy , Hepatitis C/diagnosis , Young Adult , Hepatitis C Antibodies/blood , Text Messaging , Quality Improvement
2.
Yi Chuan ; 45(9): 765-780, 2023 Sep 20.
Article in English | MEDLINE | ID: mdl-37731231

ABSTRACT

Asian cultivated rice has been domesticated from ancestors of the wild rice species Oryza rufipogon. During this process, important changes have occurred in many agronomic traits, such as plant height, grain shattering, and panicle shape, and the yield has also greatly increased. However, many favored traits (e.g., stress resistance) have been lost. The genome of O. longistaminata is of the same AA type as O. sativa, harboring many genes conferring resistance to biotic and abiotic stresses, and it is considered as a potential gene pool for genetic improvement of O. sativa. In this review, we summarize the basic research on O. longistaminata, including its resistance to biotic and abiotic stresses, its rhizome traits, and other traits that are of potential application value, such as bacterial blight resistance, drought resistance, heat tolerance, self-incompatibility, nitrogen efficiency, and high yield. Furthermore, we present the current applied research progress on perennial rice breeding based on the rhizome trait of O. longistaminata. Lastly, the possibility of de novo domestication of O. longistaminata is discussed. We expect this article to provide information to enhance the basic research of O. longistaminata and accelerate the genetic improvement of cultivated rice.


Subject(s)
Oryza , Oryza/genetics , Plant Breeding , Agriculture , Domestication , Drought Resistance
3.
Surg Endosc ; 37(10): 7493-7501, 2023 10.
Article in English | MEDLINE | ID: mdl-37415015

ABSTRACT

BACKGROUND: Conventional supine emergence and prone extubation from general endotracheal anesthesia (GEA) are associated with extubation-related adverse events (ERAEs). Given the minimally invasive nature of endoscopic retrograde cholangiopancreatography (ERCP) as well as the improved ventilation/perfusion matching and easier airway opening in the prone position, we aimed to assess the safety of prone emergence and extubation in patients undergoing ERCP under GEA. METHODS: Totally, 242 eligible patients were recruited and randomized into the supine extubation group (n = 121; supine group) and the prone extubation group (n = 121; prone group). The primary endpoint was the incidence of ERAEs during emergence, including hemodynamic fluctuations, coughing, stridor, and hypoxemia requiring airway maneuvers. The secondary endpoints included the incidence of monitoring disconnections, extubation time, recovery time, room exit time, and post-procedure sore throat. RESULTS: The incidence of ERAEs was significantly lower in the prone group compared with the supine group (8.3% vs 34.7%, OR = 0.17, 95% CI 0.18-0.56; P < 0.001). Moreover, the prone group demonstrated no monitoring disconnections, shorter extubation time and room exit time, faster recovery, and, lower frequency and milder sore throat after the procedure. CONCLUSIONS: For patients undergoing ERCP under GEA, compared with supine, prone emergence, and extubation had remarkably lower rates of EAREs and better recovery, and can maintain continuous monitoring and improve efficiency.


Subject(s)
Anesthesia, Endotracheal , Humans , Anesthesia, Endotracheal/adverse effects , Anesthesia, Endotracheal/methods , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/methods , Anesthesia, General/adverse effects , Hemodynamics , Pain/etiology
4.
J Mater Chem B ; 11(8): 1760-1772, 2023 02 22.
Article in English | MEDLINE | ID: mdl-36723366

ABSTRACT

In this work, novel cuprous oxide-demethyleneberberine (Cu2O-DMB) nanomaterials are successfully synthesized for photoresponsive-enhanced enzymatic synergistic antibacterial therapy under near-infrared (NIR) irradiation (808 nm). Cu2O-DMB has a spherical morphology with a smaller nanosize and positive ζ potential, can trap bacteria through electrostatic interactions resulting in a targeting function. Cu2O-DMB nanospheres show both oxidase-like and peroxidase-like activities, and serve as a self-cascade platform, which can deplete high concentrations of GSH to produce O2˙- and H2O2, then H2O2 is transformed into ˙OH, without introducing exogenous H2O2. At the same time, Cu2O-DMB nanospheres become photoresponsive, producing 1O2 and having an efficient photothermal conversion effect upon NIR irradiation. The proposed mechanism is that the generated ROS (O2˙-, ˙OH and 1O2) and hyperthermia can have synergetic effects for killing bacteria. Moreover, hyperthermia is not only beneficial for destroying bacteria, but also effectively enhances the efficiency of ˙OH production and accelerates GSH oxidation. Upon NIR irradiation, Cu2O-DMB nanospheres exhibit excellent antibacterial ability against methicillin-resistant Staphylococcus aureus (MRSA) and ampicillin-resistant Escherichia coli (AREC) with low cytotoxicity and bare bacterial resistance, destroy the bacterial membrane causing an efflux of proteins and disrupt the bacterial biofilm formation. Animal experiments show that the Cu2O-DMB + NIR group can efficiently treat MRSA infection and promote wound healing. These results suggest that Cu2O-DMB nanospheres are effective materials for combating bacterial infections highly efficiently and to aid the development of photoresponsive enzymatic synergistic antibacterial therapy.


Subject(s)
Hyperthermia, Induced , Methicillin-Resistant Staphylococcus aureus , Nanospheres , Animals , Staphylococcus aureus , Hydrogen Peroxide , Anti-Bacterial Agents , Escherichia coli
5.
Chem Commun (Camb) ; 58(94): 13131-13134, 2022 Nov 24.
Article in English | MEDLINE | ID: mdl-36349690

ABSTRACT

In contrast with the well-developed C-C and C-N axial chirality, research focusing on the catalytically asymmetric synthesis of N-N axially chiral compounds is still limited. As a privileged subunit of many antibiotics, the synthesis of N-N axially chiral 3,3'-bisquinazolinones has not been updated with atroposelective construction. Herein, we firstly report a chiral phosphoric acid-catalyzed dual-ring formation strategy leading to the aforementioned compounds with good chemical yields and enantioselectivities. Notably, metal-free reaction conditions are another advantage of this procedure.


Subject(s)
Phosphoric Acids , Stereoisomerism , Catalysis
6.
Front Cardiovasc Med ; 9: 998453, 2022.
Article in English | MEDLINE | ID: mdl-36312258

ABSTRACT

More than three types of ECG manifestations in one patient with dual atrioventricular nodal non-reentrant tachycardia (DAVNNT) are rare. We report a 51-year-old male patient with DAVNNT consisting of six types of ECG patterns leading to tachycardia-induced cardiomyopathy. After radiofrequency ablation of the slow pathway, DAVNNT was eliminated and cardiac function was restored.

8.
ACS Appl Mater Interfaces ; 13(38): 45651-45660, 2021 Sep 29.
Article in English | MEDLINE | ID: mdl-34533920

ABSTRACT

Lithium-sulfur batteries (LSBs) suffer from sluggish reaction kinetics of sulfur-containing species and loss of soluble polysulfides (PSs) during cycling, especially in the case of liquid electrolytes. Here, we improve the kinetics of sulfur species by decorating Mo2C nanoparticles on carbon nanotubes (CNTs) as the host for sulfur active mass. In addition, by use of gel polymer electrolytes (GPEs) derived from in situ polymerization of 1,3-dioxolane (DOL) to mitigate the diffusion of PSs and improve the stability of Li stripping/plating. As a result, the sulfur cathodes are endowed with enhanced initial specific capacity and suppressed dissolution of sulfur species. The cells with CNT/Mo2C/S cathodes and GPE exhibit excellent electrochemical performance. The anodes cycled with GPE show remarkably enhanced lithium plating-stripping behavior. Benefitting from the synergistic effect, LSBs with higher energy density and improved durability are obtained, demonstrating a new approach for developing high-performance quasi-solid-state Li metal batteries.

10.
Medicine (Baltimore) ; 99(30): e21312, 2020 Jul 24.
Article in English | MEDLINE | ID: mdl-32791719

ABSTRACT

Bleeding complications of acute coronary syndromes (ACS) after percutaneous coronary intervention (PCI) are strongly associated with adverse patient outcomes, and gastrointestinal bleeding (GIB) is the most common major bleeding event, especially in the early post-PCI period. Current guidelines recommend routinely conducting bleeding risk assessments. The existing tools are mainly used to evaluate the overall bleeding risk and guide the adjustment of antithrombotic strategies after 1 year. However, there are no specific tools for GIB risk assessment.Between January 2015 and June 2015, 4943 ACS patients underwent PCI were consecutively enrolled in the derivation cohort. GIB, cardiovascular, and cerebrovascular events were recorded within 1 year of follow-up. A validation cohort including 1000 patients who met the same inclusion and exclusion criteria was also established by propensity-score matching baseline characteristics. Multivariable cox proportional-hazards regression model was used to derive a risk-scoring system, and predictive variables were selected. A risk score nomogram based on the risk prediction model was created to estimate the 1-year risk of GIB.In this study, we found that the usage of clopidogrel (hazard ratio, HR: 2.52, 95% confidence intervals, CI: 1.573-4.021) and glycoprotein IIb/IIIa receptor inhibitors (HR: 1.863, 95% CI: 1.226-2.829), history of peptic ulcers (HR: 3.601, 95% CI: 1.226-2.829) or tumor (HR: 4.884, 95% CI: 1.226-2.829), and cardiac insufficiency (HR: 11.513, 95% CI: 7.282-18.202), renal insufficiency (HR: 2.010, 95% CI: 1.350-2.993), and prolonged activated partial thromboplastin time (HR: 4.639, 95% CI: 2.146-10.032) were independent risk factors for GIB 1 year after PCI. Based on these 7 factors, a nomogram and scoring system was established. The area under curve of risk score was 0.824 in the deviation cohort and 0.810 in the verification cohort. In both cohorts, the GIB score was significantly better than that of 3 classical bleeding scores (all P < .05).This score could well predict the risk of GIB within 1 year after PCI and could be used to guide antithrombotic strategies.


Subject(s)
Acute Coronary Syndrome/complications , Gastrointestinal Hemorrhage/etiology , Percutaneous Coronary Intervention/adverse effects , Postoperative Complications/epidemiology , Acute Coronary Syndrome/therapy , Aged , Clinical Decision Rules , Clopidogrel/adverse effects , Clopidogrel/therapeutic use , Cohort Studies , Female , Gastrointestinal Hemorrhage/diagnosis , Heart Failure/complications , Humans , Male , Middle Aged , Partial Thromboplastin Time , Peptic Ulcer/complications , Platelet Aggregation Inhibitors/adverse effects , Platelet Aggregation Inhibitors/therapeutic use , Platelet Glycoprotein GPIIb-IIIa Complex/antagonists & inhibitors , Renal Insufficiency/complications , Research Design/standards , Risk Assessment
11.
ACS Appl Mater Interfaces ; 12(37): 41419-41428, 2020 Sep 16.
Article in English | MEDLINE | ID: mdl-32812745

ABSTRACT

Although sodium vanadium fluorophosphate, Na3(VO1-xPO4)2F1+2x (0 ≤ x ≤ 1), is a highly promising cathode candidate for sodium-ion batteries because of its stable structure and high working voltage, the low charge diffusion dynamics and the inactive materials used in traditional coating electrodes reduce the energy density of a sodium-ion full battery. Hence, Na3V2O2(PO4)2F/graphene aerogels (NVPF/GAs) with a three-dimensional continuous porous network are first prepared by coassembly and freeze-drying. The three-dimensional porous network helps to obtain a high NVPF content of 81 wt %, relieve the volume change for improving the cyclability, and enhance the wettability of the electrode with the electrolyte for accelerating the diffusion dynamics of sodium ions and electrons. As a directly used freestanding cathode without the use of any binder/collector, an optimized freestanding NVPF/GA electrode exhibits excellent cycling and rate performances compared to traditional coating electrodes. The average capacities at current densities of 0.2, 0.5, 1.0, 2.0, and 5.0 C are 135.4, 128.0, 125.1, 121.9, and 115.1 mA h g-1, respectively. Especially, it maintains a capacity retention of 100% after 1000 cycles at an ultrahigh current of 40 C. A sodium-ion full battery with the NVPF/GA cathode and the Sb/graphene/carbon anode attains a of 82.1 mA h g-1 without an obvious decline after 100 cycles.

12.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 42(2): 154-163, 2020 Apr 28.
Article in Chinese | MEDLINE | ID: mdl-32385020

ABSTRACT

Objective To compare the differences in apparent diffusion coefficient (ADC) and fractional anisotropy (FA) between brucella spondylitis (BS) groups at different stages before treatment and the normal control group and to evaluate the change trend of ADC value and FA value at different time points before and after treatment. Methods Totally 53 patients suspected of BS by conventional magnetic resonance imaging (MRI) and later confirmed as BS patients by serological tests were enrolled in this study. These patients underwent conventional MRI and diffusion tensor imaging scans,and the ADC value and FA value were measured. Independent sample t test was used to compare the ADC value and FA value between the BS group and the control group,the ADC value and FA value between the BS group at each stage. Repeated measurement ANOV was used to compare the ADC values and FA values at different time points before and after treatment. Results FA imaging showed that the color code of BS was different from that of the normal control group,and the color code of FA imaging showed increased singal. The ADC values of BS in the acute,subacute,and chronic stages [(1.45±0.02)×10 -3 mm 2/s,(1.35±0.03)×10 -3 mm 2/s,(1.26±0.05)×10 -3 mm 2/s,respectively] were significantly higher than those in the control group [(1.06±0.09) ×10 -3 mm 2/s](t=2.538,P=0.009;t=1.998,P=0.032;t=1.575,P=0.004),and the FA value (0.55±0.02,0.65±0.03,0.71±0.04,respectively) were significantly lower than those of the control group (0.78±0.02) (t=2.440,P=0.012; t=1.847,P=0.041;t=2.102,P=0.003). Repeated measurement analysis showed that there were statistically significant differences in ADC values and FA values at different time points before and after treatment in the acute,subacute,and chronic stages (ADC:F=12.100,P<0.001;F=8.439,P=0.005;F=9.704,P=0.004,respectively;FA:F=7.080,P=0.002;F=6.607;P=0.003;F=8.868,P=0.001,respectively). The ADC values at different time points after treatment were significantly lower than those before treatment or at a previous time point after treatment (F=332.14,P<0.001),and the FA values were significantly higher than those before treatment or at a previous time point after treatment (F=134.26,P<0.001). Conclusions FA color code can intuitively display differences in BS and normal vertebral bodies and show change of color code before and after treatment. Also,the ADC values and FA values can quantitatively reveal differences between BS and normal vertebral body in different time points and quantify BS vertebral lesion changes before and after treatment. In particular,in BS patients who are recovering from treatment,it can quantify microscopic edema. Therefore,diffusion tensor imaging may be useful objective indicator in evaluating the effectiveness of a specific treatment for BS.


Subject(s)
Brucella , Brucellosis/diagnostic imaging , Spondylitis/diagnostic imaging , Anisotropy , Diffusion Magnetic Resonance Imaging , Diffusion Tensor Imaging , Humans , Spondylitis/microbiology
13.
J Med Virol ; 92(11): 2573-2581, 2020 11.
Article in English | MEDLINE | ID: mdl-32458459

ABSTRACT

This retrospective study was designed to explore whether neutrophil to lymphocyte ratio (NLR) is a prognostic factor in patients with coronavirus disease 2019 (COVID-19). A cohort of patients with COVID-19 admitted to the Tongren Hospital of Wuhan University from 11 January 2020 to 3 March 2020 was retrospectively analyzed. Patients with hematologic malignancy were excluded. The NLR was calculated by dividing the neutrophil count by the lymphocyte count. NLR values were measured at the time of admission. The primary outcome was all-cause in-hospital mortality. A multivariate logistic analysis was performed. A total of 1004 patients with COVID-19 were included in this study. The mortality rate was 4.0% (40 cases). The median age of nonsurvivors (68 years) was significantly older than survivors (62 years). Male sex was more predominant in nonsurvival group (27; 67.5%) than in the survival group (466; 48.3%). NLR value of nonsurvival group (median: 49.06; interquartile range [IQR]: 25.71-69.70) was higher than that of survival group (median: 4.11; IQR: 2.44-8.12; P < .001). In multivariate logistic regression analysis, after adjusting for confounding factors, NLR more than 11.75 was significantly correlated with all-cause in-hospital mortality (odds ratio = 44.351; 95% confidence interval = 4.627-425.088). These results suggest that the NLR at hospital admission is associated with in-hospital mortality among patients with COVID-19. Therefore, the NLR appears to be a significant prognostic biomarker of outcomes in critically ill patients with COVID-19. However, further investigation is needed to validate this relationship with data collected prospectively.


Subject(s)
COVID-19/diagnosis , Hospital Mortality , Lymphocytes/cytology , Neutrophils/cytology , Age Factors , Aged , Biomarkers/blood , COVID-19/mortality , Critical Illness , Cross-Sectional Studies , Female , Humans , Leukocyte Count , Male , Middle Aged , Multivariate Analysis , Odds Ratio , Prognosis , ROC Curve , Retrospective Studies , Sex Factors
14.
Vet Microbiol ; 233: 140-146, 2019 Jun.
Article in English | MEDLINE | ID: mdl-31176400

ABSTRACT

Porcine reproductive and respiratory syndrome (PRRS) is caused by PRRS virus (PRRSV), and is characterized by respiratory diseases in piglet and reproductive disorders in sow. Identification of sustainable and effective measures to mitigate PRRSV transmission is a pressing problem. The nucleocapsid (N) protein of PRRSV plays a crucial role in inhibiting host innate immunity during PRRSV infection. In the current study, a new host-restricted factor, tripartite motif protein 25 (TRIM25), was identified as an inhibitor of PRRSV replication. Co-immunoprecipitation assay indicated that the PRRSV N protein interferes with TRIM25-RIG-I interactions by competitively interacting with TRIM25. Furthermore, N protein inhibits the expression of TRIM25 and TRIM25-mediated RIG-I ubiquitination to suppress interferon ß production. Furthermore, with increasing TRIM25 expression, the inhibitory effect of N protein on the ubiquitination of RIG-I diminished. These results indicate for the first time that TRIM25 inhibits PRRSV replication and that the N protein antagonizes the antiviral activity by interfering with TRIM25-mediated RIG-I ubiquitination. This not only provides a theoretical basis for the development of drugs to control PRRSV replication, but also better explains the mechanism through which the PRRSV N protein inhibits innate immune responses of the host.


Subject(s)
DEAD Box Protein 58/metabolism , Nucleocapsid Proteins/metabolism , Porcine respiratory and reproductive syndrome virus/metabolism , Tripartite Motif Proteins/antagonists & inhibitors , Tripartite Motif Proteins/genetics , Ubiquitination , Amino Acid Motifs , Animals , Cell Line , Chlorocebus aethiops , HEK293 Cells , Host-Pathogen Interactions , Humans , Immunity, Innate , Nucleocapsid Proteins/genetics , Porcine respiratory and reproductive syndrome virus/genetics , Protein Binding , RNA, Small Interfering , Signal Transduction/immunology , Swine , Transfection , Virus Replication
15.
J Colloid Interface Sci ; 545: 128-137, 2019 Jun 01.
Article in English | MEDLINE | ID: mdl-30877996

ABSTRACT

Self-sacrificial biomass-derived silica is a rising and promising approach to fabricate large metal silicates, which are practical water treatment agents ascribed for easy sedimentation and separation. However, the original biomass architecture is difficult to be maintained and utilized. Furthermore, sufficient ion diffusion pathways need to be created to satisfy massive mass transport in large bulk materials. Herein, a series of metal silicates, including cobalt silicate (CoSiOx), copper silicate, nickel silicate, iron silicate, and magnesium silicate, are synthesized from Indocalamus tessellatus leaf as the biomass-derived silica source and investigated as catalysts in sulfate-radical-based advanced oxidization processes (SR-AOPs) for the first time. Among them, CoSiOx presents an analogical sandwich structure as a leaf-derived template of micron-level size. More importantly, the interior hollow nanotubes assembled by small nanosheets provide numerous pathways for ion diffusion and remarkably promote the mass transport in such large bulk materials. Owing to the combination of the unique structure with the high reactivity of Co (II) toward peroxymonosulfate, CoSiOx exhibits excellent catalytic performance with 0.242 and 0.153 min-1 rate constants for the removal of methylene blue and phenol, respectively, which outperforms/is comparable to that of the reported nanomaterials toward organic contaminants in SR-AOPs.

16.
Chemistry ; 24(65): 17339-17344, 2018 Nov 22.
Article in English | MEDLINE | ID: mdl-30226279

ABSTRACT

Although the electrochemical catalytic conversion process is effective in increasing the reversible capacity of lithium-ion batteries, the low contact efficiency between metal catalyst and substrate and pulverization of the solid electrolyte interface (SEI) film without protection are not beneficial for the electrochemical reactions. Herein, Fe7 S8 nanoparticles are confined by both reduced graphene oxide (RGO) and in-situ-formed amorphous carbon (C) to form dual-carbon-confined Fe7 S8 as a lithium-ion anode. The dual-carbon-confined structure provides a confined space to prevent pulverization of the SEI film and increases the local concentration of intermediate phases, which could be electrocatalytically decomposed by Fe nanoparticles formed in situ to increase the reversibility of the electrochemical reactions and gain high reversible capacity. In addition, the dual-carbon-confined structure ensures fast transfer of electrons and boosts transport of lithium ions due to the highly conductive dual-carbon shell. Thus, the Fe7 S8 /C/RGO anode delivers an excellent rate performance and long cycling stability. At current densities of 2000 and 5000 mA g-1 , the reversible capacities are 520 mA h g-1 over 1500 cycles and 294 mA h g-1 over 2000 cycles, respectively.

17.
Biochem Biophys Res Commun ; 504(1): 157-163, 2018 09 26.
Article in English | MEDLINE | ID: mdl-30172377

ABSTRACT

Porcine reproductive and respiratory syndrome virus (PRRSV) has been a major threat to global industrial pig farming ever since its emergence in the late 1980s. Identification of sustainable and effective control measures against PRRSV transmission is a pressing problem. The nucleocapsid (N) protein of PRRSV is specifically localized in the cytoplasm and nucleus of virus-infected cells which is important for PRRSV replication. In the current study, a new host restricted factor, Moloney leukemia virus 10-like protein (MOV10), was identified as an inhibitor of PRRSV replication. N protein levels and viral replication were significantly reduced in Marc-145 cells stably overexpressing MOV10 compared with those in wild-type Marc-145 cells. Adsorption experiments revealed that MOV10 did not affect the attachment and internalization of PRRSV. Co-immunoprecipitation and immunofluorescence co-localization analyses showed that MOV10 interacted and co-localized with the PRRSV N protein in the cytoplasm. Notably, MOV10 affected the distribution of N protein in the cytoplasm and nucleus, leading to the retention of N protein in the former. Taken together, these findings demonstrate for the first time that MOV10 inhibits PRRSV replication by restricting the nuclear import of N protein. These observations have great implications for the development of anti-PRRSV drugs and provide new insight into the role of N protein in PRRSV biology.


Subject(s)
Cytoplasm/metabolism , Nucleocapsid Proteins/chemistry , Porcine respiratory and reproductive syndrome virus/physiology , RNA Helicases/metabolism , Virus Replication , Animal Husbandry , Animals , Cell Line , Chlorocebus aethiops , DNA Replication , HEK293 Cells , Humans , Moloney murine leukemia virus/metabolism , Porcine Reproductive and Respiratory Syndrome/metabolism , Protein Binding , Swine , Viral Nonstructural Proteins/metabolism
18.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 40(4): 519-527, 2018 Aug 30.
Article in Chinese | MEDLINE | ID: mdl-30193606

ABSTRACT

Objective To explore the value of fractional anisotropy(FA) and apparent diffusion coefficient(ADC) in the early diagnosis of intervertebral disc change in patients with Brucella spondylitis(BS) and in the assessment of BS disc changes after treatment and to further investigate the imaging features of BS in its acute,subacute,and chronic stages. Methods Totally 60 serologically or pathologically confirmed BS patients who were treated in the First Hospital Affiliated to Hebei North University(n=20) or ZhangJiakou Infectious Diseases Hospital(n=40) were enrolled. BS patients were scanned by CT,magnetic resonance imaging,and diffusion tensor imaging,and the FA and ADC values of the disc were measured using the DTI Fiber Trak package. The FA and ADC values were compared in each period and after treatment. Results The ADC value significantly increased and the FA value significantly decreased in different stages(P<0.01). Six months after treatment,the ADC value was significantly lower than the pre-treatment,and the FA value was significantly increased(P<0.01). The ADC value 12 months after treatment for patients in acute or subacute stage and the FA value 12 months after treatment for patients in all stages were significantly different from those in the 6th month after treatment(P<0.01),and the only exception was that the ADC value in the chronic stage was not significantly different between 12th and 6th month after treatment(P=0.089).Conclusion FA and ADC values are more sensitive than conventional MRI sequences in the diagnosis of BS intervertebral disc change and therefore can be used for the early diagnosis and prognostic prediction.


Subject(s)
Brucellosis/complications , Diffusion Tensor Imaging , Intervertebral Disc/diagnostic imaging , Spondylitis/diagnostic imaging , Brucella/pathogenicity , Brucellosis/pathology , Early Diagnosis , Humans , Intervertebral Disc/pathology , Prognosis , Spondylitis/microbiology
19.
Nanoscale ; 10(23): 10963-10970, 2018 Jun 14.
Article in English | MEDLINE | ID: mdl-29855028

ABSTRACT

The rapid capacity degradation of Ge-based materials hinders their practical application for next generation lithium ion batteries, which could be solved by synthesizing Ge-containing ternary oxides, with new structures and hybridizing with carbon nanomaterials. Herein, novel Ni3Ge2O5(OH)4 nanosheets were synthesized and distributed in situ on reduced graphene oxide (RGO) sheets, with both flat-lying and vertically-grown spatial distributions to imitate the growth of lotus leaves. These two types of Ni3Ge2O5(OH)4 nanosheets enhance their efficient contact with RGO, and increase the mass loading of active materials. Furthermore, the interfacial bonds between RGO sheets and Ni3Ge2O5(OH)4 nanosheets are introduced to improve the diffusion rate of lithium ions. The RGO sheets act as a buffer matrix to sustain the volume change and prevent the nanosheets from aggregation. Consequently, the chemically bonded Ni3Ge2O5(OH)4/RGO hybrid delivers a high specific capacity of 863 mA h g-1 over 75 cycles, which is much higher than those for neat Ni3Ge2O5(OH)4 nanosheets or the hybrid without the interfacial bonding. This study provides a novel perspective for designing high-performance Ge-based anode materials for advanced lithium ion batteries.

20.
ACS Appl Mater Interfaces ; 10(21): 17923-17932, 2018 May 30.
Article in English | MEDLINE | ID: mdl-29737838

ABSTRACT

Construction of a continuous conductance network with high electron-transfer rate is extremely important for high-performance energy storage. Owing to the highly efficient mass transport and information transmission, neurons are exactly a perfect model for electron transport, inspiring us to design a neuron-like reaction network for high-performance lithium-ion batteries (LIBs) with Fe3O4 as an example. The reactive cores (Fe3O4) are protected by carbon shells and linked by carbon filaments, constituting an integrated conductance network. Thus, once the reaction starts, the electrons released from every Fe3O4 cores are capable of being transferred rapidly through the whole network directly to the external circuit, endowing the nanocomposite with tremendous rate performance and ultralong cycle life. After 1000 cycles at current densities as high as 1 and 2 A g-1, charge capacities of the as-synthesized nanocomposite maintain 971 and 715 mA h g-1, respectively, much higher than those of reported Fe3O4-based anode materials. The Fe3O4-based conductive network provides a new idea for future developments of high-rate-performance LIBs.

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