Abstract The power of computed tomography (CT) radiomics for preoperative prediction of microvascular invasion (MVI) in hepatocellular carcinoma (HCC) demonstrated in current research is variable. This systematic review and meta-analysis aim to evaluate the value of CT radiomics for MVI prediction in HCC, and to investigate the methodologic quality in the workflow of radiomics research. Databases of PubMed, Embase, Web of Science, and Cochrane Library were systematically searched. The methodologic quality of included studies was assessed. Validation data from studies with Transparent Reporting of a Multivariable Prediction Model for Individual Prognosis or Diagnosis (TRIPOD) statement type 2a or above were extracted for meta-analysis. Eleven studies were included, among which nine were eligible for meta-analysis. Radiomics quality scores of the enrolled eleven studies varied from 6 to 17, accounting for 16.7%-47.2% of the total points, with an average score of 14. Pooled sensitivity, specificity, and Area Under the summary receiver operator Characteristic Curve (AUC) were 0.82 (95% CI 0.77-0.86), 0.79 (95% CI 0.75-0.83), and 0.87 (95% CI 0.84-0.91) for the predictive performance of CT radiomics, respectively. Meta-regression and subgroup analyses showed radiomics model based on 3D tumor segmentation, and deep learning model achieved superior performances compared to 2D segmentation and non-deep learning model, respectively (AUC: 0.93 vs. 0.83, and 0.97 vs. 0.83, respectively). This study proves that CT radiomics could predict MVI in HCC. The heterogeneity of the included studies precludes a definition of the role of CT radiomics in predicting MVI, but methodology warrants uniformization in the radiology community regarding radiomics in HCC.

Abstract Acanthopanax gracilistylus W.W.Smith (AGS) is an traditional Chinese medicine and its leaves that have rich biological activities has been long used as a fresh vegetable in Chinese folk. There are two lupane-type triterpenoids, 3α,11α-dihydroxy-23-oxo-lup-20(29)-en-28-oic acid (1) and 3α,11α,23-trihydroxy-lup-20(29)-en-28-oic acid (2), were isolated as the active constituents from leaves of AGS. However, the anti-inflammatory effects and potential mechanisms of 1 and 2 on LPS-induced RAW264.7 Macrophages have not been evaluated. In this study, the results shown that compounds 1 and 2 reduced the levels of early pro-inflammatory cytokines TNF-α, IL-1β, the secretion of late pro-inflammatory cytokine HMGB1, as well as the activation of transcription factor NF-κB in RAW 264.7 macrophages induced by LPS. In conclusion, two lupane-type triterpenes (1 and 2) have anti-inflammatory activities in LPS-induced RAW264.7 cells through inhibiting expression of proinflammatory cytokines and NF‐κB activation and could be potentially used in treatment of inflammatory-related diseases in the future.

Abstract LaoXiangHuang (LXH) is a medical pickled fruit made of fresh finger citron (Citrus medica L. var. sarcodactylis) in Chaozhou, China. Aging is a process to strengthen the efficacy of Laoxianghuang (LXH), which is related to the activity of microorganisms. In this study, the changes of the microbial community of LXH within the three-years aging process were analyzed by high-throughput sequencing (HTS). According to alpha diversity results, bacterial abundance and diversity were higher than those of fungi. A total of 3 phyla and 13 bacterial genera were identified whereas 2 phyla and 4 fungal genera were identified. Meta-taxonomic of the overall bacterial communities in samples revealed that Halomonas spp. was the most abundant genus in all samples, which showed the first decresed, and then increased and decreased finally. The followed by Nitriliuptor spp., Nesterenkonia spp., Weissella spp., Notinibacter spp., Streptococcus spp., Nocardiopsis spp., Acinetobacter spp., Ralstonia spp., Lactobacillus spp. and unassigned genus. The unassigned genera (through the whole three-years fermentation period), Ustilago spp., Malassezia spp., Aspergillus spp. and Schizophyllum spp. were the predominant fungal genera. The result of PCOA and T-test analysis exhibited that the samples with different aging times have significant differences and are mainly reflected in Halomonas, unassigned bacterial genera, Nitriliruptor, Nesterenkonia, Weissella, Intestinibacter, Streptococcus and Nocardiopsis, Lactobacillus, Acinetobacter, Ralstonia, unassigned fungal genera, Ustilago spp. Malassezia spp. Aspergillus spp. and Schizophyllum spp., which may have important potential in promoting the aging process of LXH. This study helps us to understand the dynamic change of microorganisms of LXH during the aging process and provides a research basis for shortening the aging time of LXH in the future.

In order to investigate the hot deformation behaviors of Invar36 alloy, isothermal compressive tests were conducted on a Gleeble 1500 thermo-mechanical simulator at the temperatures of 873, 948, 1023, 1098 and 1173 K and the strain rates of 0.01, 0.1, 1 and 10 s−1. The effects of strain, temperature and strain rate on flow stress were analyzed, and a dynamic recrystallization type softening characteristic with unimodal flow behavior is determined. An artificial neural network based on back-propagation algorithm was proposed to handle the complex deformation behavior characteristics. The ANN model was evaluated in terms of correlation coefficient and average absolute relative error. A comparative study was performed on ANN model and constitutive equation by regression method for Invar36 alloy. Finally, the ANN model was applied to the finite element simulation, and an experimental study on trial hot forming of a V-shaped part was conducted to demonstrate the precision of the finite element simulation based on predicted flow stress data by ANN model. The results have sufficiently showed that the well-trained ANN model with BP algorithm is able to deal with the complex flow behaviors of Invar36 alloy and has great application potentiality in hot deformation.

Abstract In this work, Ag doped NaSbO3 (ANS) was successfully synthesized and applied an efficient visible light photocatalyst. The properties of catalyst were fully characterized, and DFT (the density functional theory) computation was utilized to investigate the photocatalytic mechanism. The various characterization findings proved that Ag atoms were perfectly doped into NaSbO3 crystals, which greatly reduced the band gap, and made ANS catalyst exhibit excellent visible light absorption performance. In addition, ANS appeared great photocatalytic activities and remarkable stability. Also, electrochemical characterizations illustrated that ANS possessed stronger ability of generating and transferring electrons and holes under visible light, and the doping of Ag atoms reduced the resistance of charge transfer, thus effectively accelerated the photocatalysis reaction. Moreover, through ESR characterization and scavengers coexistent experiments, •OH and •O2- were considered to be active radicals that played a crucial role in the photodegradation process. Furthermore, DFT calculation demonstrated that ANS displayed obvious visible light excitation performance via reducing the band gap. The improvement of work function enhanced the oxidation ability of photogenerated holes, forming more hydroxyl radicals, thus boosted the photodegradation of pollutants.

Abstract In the era of climate change, due to increased incidences of a wide range of various environmental stresses, especially biotic and abiotic stresses around the globe, the performance of plants can be affected by these stresses. After oxygen, silicon (Si) is the second most abundant element in the earth’s crust. It is not considered as an important element, but can be thought of as a multi-beneficial quasi-essential element for plants. This review on silicon presents an overview of the versatile role of this element in a variety of plants. Plants absorb silicon through roots from the rhizospheric soil in the form of silicic or monosilicic acid. Silicon plays a key metabolic function in living organisms due to its relative abundance in the atmosphere. Plants with higher content of silicon in shoot or root are very few prone to attack by pests, and exhibit increased stress resistance. However, the more remarkable impact of silicon is the decrease in the number of seed intensities/soil-borne and foliar diseases of major plant varieties that are infected by biotrophic, hemi-biotrophic and necrotrophic pathogens. The amelioration in disease symptoms are due to the effect of silicon on a some factors involved in providing host resistance namely, duration of incubation, size, shape and number of lesions. The formation of a mechanical barrier beneath the cuticle and in the cell walls by the polymerization of silicon was first proposed as to how this element decreases plant disease severity. The current understanding of how this element enhances resistance in plants subjected to biotic stress, the exact functions and mechanisms by which it modulates plant biology by potentiating the host defence mechanism needs to be studied using genomics, metabolomics and proteomics. The role of silicon in helping the plants in adaption to biotic stress has been discussed which will help to plan in a systematic way the development of more sustainable agriculture for food security and safety in the future.

Abstract Objective China launched an innovative program of catastrophic medical insurance (CMI) to protect households from catastrophic health expenditure (CHE) and impoverishment. This article assesses the effect of CMI on relieving CHE and impoverishment from catastrophic illnesses in urban and rural China. Method In total, 8378 cases are included in the analysis. We employed descriptive statistical analysis to compare the incidence and intensity of CHE at five health expenditure levels, from 1 June 2014 to 31 May 2015. To illustrate the different protection of the policy, we analyzed the data in two lines, the covered medical expenses and the total medical expenses. Results CMI drop down CHE incidence from 4.8% to 0.1% and the mean catastrophic payment gap from 7.9% to zero when only considering covered medical expenses. CMI drop down CHE incidence from 15.5% to 7.9% and the mean catastrophic payment gap from 31.2% to 14.7% when considering total medical expenses. If CMI reimburse uncovered medical expenses at 30%, the mean catastrophic payment gap could be 7.9% and insured person's annual premium will increase US$2.19. Conclusions China CMI perfectly meet the pursued policy objectives when only considering the covered medical expenses. However, when considering the total medical expenses, the CMI is only partially effective in protecting households from CHE. The considerable gap is the result of the limitation of CMI list.

Resumen Objetivo China lanzó un innovador programa de Seguro Catastrófico de Salud (SCS) para proteger a los hogares del gasto sanitario catastrófico (GSC) y el empobrecimiento. Este artículo evalúa el efecto del SCS para aliviar el GSC y el empobrecimiento a causa de las enfermedades catastróficas en zonas urbanas y rurales de China. Método En total, se incluyen 8378 casos en el análisis. Se emplearon análisis estadísticos descriptivos para comparar la incidencia y la intensidad del GSC en cinco niveles de gastos de salud, del 1 de junio de 2014 al 31 de mayo de 2015. Para ilustrar la diferente protección de la política se analizaron los datos en dos líneas: los gastos sanitarios cubiertos por el seguro y los gastos sanitarios totales. Resultados Considerando los gastos cubiertos por el seguro, se redujeron los hogares con gastos catastróficos del 4,8% al 0,1%, y la brecha de pago catastrófico media cayó del 7,9% al 0,0% en promedio. Cuando consideramos el gasto sanitario total, los hogares con gasto catastrófico se redujeron del 15,5% al 7,9%, y la brecha de pago catastrófico media cayó del 31,2% al 14,7% en promedio. Esta cantidad podría reducirse al 7,9% si se reembolsara el 30% a los gastos no cubiertos por el SCS, lo que supondría un aumento de la prima del seguro por persona de US$ 2,19. Conclusiones El SCS de China cumple perfectamente los objetivos de la política perseguida cuando solo se consideran los gastos cubiertos por el seguro. Si se consideran los gastos totales, el SCS solo es parcialmente efectivo para proteger a los hogares del gasto sanitario catastrófico. El motivo de este desfase es la limitación existente en la lista de servicios cubiertos por el SCS.

Abstract Objective China launched an innovative program of catastrophic medical insurance (CMI) to protect households from catastrophic health expenditure (CHE) and impoverishment. This article assesses the effect of CMI on relieving CHE and impoverishment from catastrophic illnesses in urban and rural China. Method In total, 8378 cases are included in the analysis. We employed descriptive statistical analysis to compare the incidence and intensity of CHE at five health expenditure levels, from 1 June 2014 to 31 May 2015. To illustrate the different protection of the policy, we analyzed the data in two lines, the covered medical expenses and the total medical expenses. Results CMI drop down CHE incidence from 4.8% to 0.1% and the mean catastrophic payment gap from 7.9% to zero when only considering covered medical expenses. CMI drop down CHE incidence from 15.5% to 7.9% and the mean catastrophic payment gap from 31.2% to 14.7% when considering total medical expenses. If CMI reimburse uncovered medical expenses at 30%, the mean catastrophic payment gap could be 7.9% and insured person's annual premium will increase US$2.19. Conclusions China CMI perfectly meet the pursued policy objectives when only considering the covered medical expenses. However, when considering the total medical expenses, the CMI is only partially effective in protecting households from CHE. The considerable gap is the result of the limitation of CMI list.

Resumen Objetivo China lanzó un innovador programa de Seguro Catastrófico de Salud (SCS) para proteger a los hogares del gasto sanitario catastrófico (GSC) y el empobrecimiento. Este artículo evalúa el efecto del SCS para aliviar el GSC y el empobrecimiento a causa de las enfermedades catastróficas en zonas urbanas y rurales de China. Método En total, se incluyen 8378 casos en el análisis. Se emplearon análisis estadísticos descriptivos para comparar la incidencia y la intensidad del GSC en cinco niveles de gastos de salud, del 1 de junio de 2014 al 31 de mayo de 2015. Para ilustrar la diferente protección de la política se analizaron los datos en dos líneas: los gastos sanitarios cubiertos por el seguro y los gastos sanitarios totales. Resultados Considerando los gastos cubiertos por el seguro, se redujeron los hogares con gastos catastróficos del 4,8% al 0,1%, y la brecha de pago catastrófico media cayó del 7,9% al 0,0% en promedio. Cuando consideramos el gasto sanitario total, los hogares con gasto catastrófico se redujeron del 15,5% al 7,9%, y la brecha de pago catastrófico media cayó del 31,2% al 14,7% en promedio. Esta cantidad podría reducirse al 7,9% si se reembolsara el 30% a los gastos no cubiertos por el SCS, lo que supondría un aumento de la prima del seguro por persona de US$ 2,19. Conclusiones El SCS de China cumple perfectamente los objetivos de la política perseguida cuando solo se consideran los gastos cubiertos por el seguro. Si se consideran los gastos totales, el SCS solo es parcialmente efectivo para proteger a los hogares del gasto sanitario catastrófico. El motivo de este desfase es la limitación existente en la lista de servicios cubiertos por el SCS.

ABSTRACT Infestation of Bemisia tabaci MEAM1 (Gennadius) causes significant phenotypic changes in a variety of plants. However, plants damaged by Trialeurodes vaporariorum (Westwood) show no similar changes. In this study, to explore the effects of MEAM1 infestation on tobacco growth and the mechanism underlying these effects, growth index, and photosynthesis of infested tobacco (Nicotiana tabacum L.), as well as content of hormones, including auxin, gibberellin, cytokinin, abscisic acid, methyl jasmonate, and ethylene were measured. The results demonstrated that infestation of MEAM1 significantly inhibited tobacco growth and the inhibition effect varied with MEAM1 feeding densities, 50 MEAM1 per infested tobacco plant decreased plant height, internode length, and dry weight cm-2, and this inhibition peaked at 200 MEAM1 per plant, which reduced by 52.17%, 43.83%, and 45.61% that of controls, respectively. Additionally, MEAM1 infestation inhibited photosynthesis of tobacco, causing significant decrease in chlorophyll content, photosynthetic rate and stomatal conductance. However, the effects of T. vaporariorum infestation on tobacco were significantly lighter than that of MEAM1. Hormones assays indicated that infestation with 200 MEAM1 per plant for 30 d significantly affected hormones content, among which gibberellin content was specifically reduced compared with that of uninfested control plants and T. vaporariorum infested plants. Furthermore, exogenous application of 1 and 2 μM gibberellin alleviated the reduction in plant height mediated by MEAM1. Therefore, infestation of MEAM1 significantly inhibited tobacco growth and photosynthesis, and the reduction of gibberellin content may contribute to this inhibition.

With the widespread use of high-efficiency antiretroviral therapy (HAART), the life expectancy of HIV-infected patients has been significantly extended. However, the metabolic complications among HIV-infected patients treated with HAART have become the most common problem in the world. It is very important to explore the incidence of dyslipidaemia and studies on the role of potential risk factors in HIV-infected Chinese patients treated with HAART are sparse. Therefore, we designed current study, to investigate the effects of therapeutic intervention and continuous information support on the lifestyle of HIV/AIDS patients with dyslipidaemia. Three hundred and six HIV/AIDS patients admitted to the AIDS clinic in Beijing from January 2016 to January 2017 were recruited and assigned into two groups: the treatment group (n=64) and the control group (n=64). The median age of the participants was 38.8±11.0 years (range 20-75 years). The prevalence of dyslipidemia in control and treatment group was (59/64) 92.2% and (53/64) 82.8%, respectively. In this study, low HDL-cholesterol (HDLC) led to abnormalities 47/64 (73.3%) in the control group and 35/64 (54.7%) in HAART-treatment group. Additionally, HAART group showed higher triglyceride, total cholesterol, and low-density lipoprotein (246.1±171.8, 1.73±1.61 mmol/L, 4.46±1.1 mmol/L, 2.54±0.74 mmol/L). In multivariate analysis, gender, marital status, high BMI, dietary habits and physical activity were potential risk factors for dyslipidemia in HIV-infected Chinese patients. In this study, we reported high prevalence dyslipidemiain two HIV infected groups. We suggest that the appropriate diagnosis should be performed for analyzing the metabolic complications in HIV-infected Chinese patients. Further studies are very important to understand the role of potential risk factors in metabolic complications.

SUMMARY: The myodural bridge (MDB) is confirmed that connecting the most of suboccipital muscles to the cervical dura mater through the posterior intervertebral spaces and widely exists in mammals and birds. In order to reveal whether the MDB is universally existing in amniota of vertebrates, we explored the existence and the morphological features of the MDB in the Trachemys scripta elegans. Twenty fresh red-eared slider specimens were observed by the gross anatomy dissection and histological analysis. In the results, three kind of muscles in the postoccipital region of the red-eared slider were found. The rectus capitis dorsum minor muscle originated from the posterior margin of the occiput (C0) and terminated at the spinous process of the atlas (C1). The transversospinales muscle was attached to the vertebral arch and the postzygapophysis of the atlas and extended to the spinous process of the axis (C2). The C2-C3 intertransversales muscle were extended from the postzygapophysis of C2 and the one of C3. The three muscles covered the dorsal interspaces among C0-C3, and meantime they were closely connected with dense connective tissues, which filled in these interspaces. Each of these thick dense connective tissue membranes sent off several short and strong fibrous bundles ventrally to merge with the cervical spinal dura mater. Furthermore the connective tissues connecting these muscles with cervical spinal dura mater directly were revealed under the microscopy and they consisted of parallel and intensive collagen fibers with orientation from dorsal to ventral. In conclusion, this study for the first time demonstrated the existence of the MDB in the testudines, in all of the dorsal atlantooccipital, atlantoaxial and C2-C3 intervertebral spaces. Based on our results and comparative anatomical evidences in recent year, it could be inferred that the MDB might be its highly conserved structure in the evolution of amniota.

RESUMEN: Se confirma que el puente miodural (PMD) conecta la mayoría de los músculos suboccipitales con la duramadre cervical a través de los espacios intervertebrales posteriores y existe ampliamente en mamíferos y aves. Para revelar si el MDB existe universalmente en la amniota de vertebrados, exploramos la existencia y las características morfológicas del PMD en Trachemys scripta elegans. Veinte muestras se observaron mediante disección anatómica y análisis histológico. En los resultados, se encontraron tres tipos de músculos en la región occipital. El músculo recto capitis dorsum minor se originó en el margen posterior del occipital (C0) y terminó en el proceso espinoso del atlas (C1). El músculo transverso espinal se unió al arco vertebral y el proceso del atlas y se extendió al proceso espinoso del axis (C2). El músculo intertransversario C2-C3 se extendió entre los procesos transversos de C2 y el de C3. Los tres músculos cubrían los espacios intermedios dorsales entre C0-C3 y, mientras tanto, estaban estrechamente conectados con tejidos conectivos densos, que rellenaban estos espacios. Cada una de estas membranas densas de tejido conectivo envían varios haces fibrosos cortos y fuertes ventralmente para fusionarse con la duramadre espinal cervical. Además, los tejidos conectivos que conectan estos músculos con la duramadre cervical y espinal se revelaron directamente bajo microscopía y consistían en intensas fibras de colágeno, paralelas, con orientación desde dorsal a ventral. En conclusión, este estudio demostró por primera vez la existencia del PMD en los estudios de prueba, en todos los espacios dorsales atlantooccipital, atlantoaxial e intervertebral C2-C3. Sobre la base de nuestros resultados y las evidencias anatómicas comparativas de los últimos años, se podría inferir que el PMD podría ser una estructura altamente conservada en la evolución de la amniota.

In this work, thermal properties and kinetics of Al-nanoparticles/α-MnO2 nanorods thermite were reported. The α-MnO2 nanorods were synthesized using a hydrothermal method and were characterized by X-ray powder diffraction (XRD) and X-ray photoelectron spectra (XPS), then combined with Al nanoparticles based on the ultrasonic mixing method to prepare the nanostructure thermite. Besides, both pure components and mixture were characterized by field emission scanning electron microscopy (FE-SEM) to observe their morphologies and structures. Subsequently, the thermal properties of Al/α-MnO2 nanostructure thermite were studied on the basis of thermogravimetric-differential scanning calorimetry (TG-DSC). According to the TG-DSC tests, the calculation results of activation energy for kinetics of Al/α-MnO2 thermite were obtained using different isoconversional methods. It was found that Al/α-MnO2 nanostructure thermite has high heat release and low onset temperature, and the heat release of the nanostructure thermite was approximately 1146.6 J g -1.

ABSTRACT Introduction To evaluate the safety and efficacy of a novel penile circumcision suturing devices PCSD and Shang ring (SR) for circumcision in an adult population. Materials and Methods A total of 124 outpatients were randomly assigned to receive PCSD (n=62) or SR (n=62). Patient characteristics, operative time, blood loss, return to normal activities time (RNAT), visual analogue scale (VAS), scar width, wound healing time, cosmetic result, and complications were recorded. Results There were no significant differences in blood loss, RNAT, or complications between the two groups. There were no significant differences in the VAS scores at the operation, at 6 or 24 hours after surgery (P>0.05). The wound scar width was wider in the SR group than in the PCSD group (P<0.01). Patients in the SR group had significantly longer wound healing time compared with those in the PCSD group (P<0.01). Patients who underwent PCSD were significantly more satisfied with the cosmetic results (P<0.01). Conclusions SR and PCSD are safe and effective minimally invasive techniques for adult male circumcision. Compared with SRs, PCSDs have the advantages of faster postoperative incision healing and a good effect on wound cosmetics.

Ghrelin, an endogenous ligand for the growth hormone secretagogue receptor, has been detected in the thymus of multiple vertebrates. However, little is known about its distribution in the thymus of the African ostrich. In this study, we evaluated the distribution and morphological characteristics of ghrelin-producing cells in the thymus of the African ostrich. Our results revealed that the thymus consists of a capsule and a parenchyma, which comprises the cortex and medulla. Compared to the cortex, the medulla had a fewer number of thymocytes and a greater number of epithelial cells. Additionally, three thymic corpuscles were identified. Ghrelin-immunopositive (ghrelin-ip) cells were detected both in the cortex and medulla of the African ostrich thymus, specifically within epithelial cells and thymic corpuscles. On the other hand, no ghrelin-ip cells were detected within thymocytes. These results clearly demonstrate the presence of ghrelin-ip cells in the thymus of the African ostrich.

La ghrelina, un ligando endógeno para el receptor secretor de la hormona del crecimiento, se ha detectado en el timo de múltiples vertebrados. Sin embargo, poco se sabe sobre su distribución en el timo de la avestruz africana. En este estudio se evaluó la distribución y características morfológicas de las células productoras de ghrelina en el timo de la avestruz africana. Nuestros resultados revelaron que el timo consiste en una cápsula y un parénquima, que comprende la corteza y la médula. En comparación con la corteza, se observó un número menor de timocitos en la médula y un mayor número de células epiteliales. Además, se identificaron tres corpúsculos tímicos. Se detectaron células inmunopositivas a la ghrelina (ghrelin-ip) tanto en la corteza como en la médula del timo de la avestruz africana, específicamente dentro de células epiteliales y corpúsculos tímicos. Por otra parte, no se detectaron células ghrelin-ip dentro de los timocitos. Estos resultados demuestran claramente la presencia de células ghrelin-ip en el timo de la avestruz africana.