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1.
Z Gastroenterol ; 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38917832

RESUMO

Granular cell tumors, uncommon soft tissue growths, predominantly manifest in the subcutaneous and tongue areas, while those in the gastrointestinal tract are scarce and develop slowly. Patients typically show no distinct clinical symptoms and are hard to differentiate from gastrointestinal mesenchymal tumors, smooth muscle tumors, neural sheath tumors, and rhabdomyosarcomas using endoscopy. This paper details a case of a granular cell tumor in the stomach addressed through endoscopic submucosal dissection, focusing on its endoscopic attributes and clinicopathological traits.

2.
Sensors (Basel) ; 24(11)2024 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-38894343

RESUMO

Circulating tumor cells are typically found in the peripheral blood of patients, offering a crucial pathway for the early diagnosis and prediction of cancer. Traditional methods for early cancer diagnosis are inefficient and inaccurate, making it difficult to isolate tumor cells from a large number of cells. In this paper, a new spiral microfluidic chip with asymmetric cross-section is proposed for rapid, high-throughput, label-free enrichment of CTCs in peripheral blood. A mold of the desired flow channel structure was prepared and inverted to make a trapezoidal cross-section using a micro-nanotechnology process of 3D printing. After a systematic study of how flow rate, channel width, and particle concentration affect the performance of the device, we utilized the device to simulate cell sorting of 6 µm, 15 µm, and 25 µm PS (Polystyrene) particles, and the separation efficiency and separation purity of 25 µm PS particles reached 98.3% and 96.4%. On this basis, we realize the enrichment of a large number of CTCs in diluted whole blood (5 mL). The results show that the separation efficiency of A549 was 88.9% and the separation purity was 96.4% at a high throughput of 1400 µL/min. In conclusion, we believe that the developed method is relevant for efficient recovery from whole blood and beneficial for future automated clinical analysis.


Assuntos
Separação Celular , Dispositivos Lab-On-A-Chip , Células Neoplásicas Circulantes , Humanos , Separação Celular/métodos , Separação Celular/instrumentação , Células Neoplásicas Circulantes/patologia , Células A549 , Técnicas Analíticas Microfluídicas/instrumentação , Técnicas Analíticas Microfluídicas/métodos , Impressão Tridimensional
3.
Nano Lett ; 23(23): 10856-10863, 2023 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-37982531

RESUMO

All-solid-state sulfide-based Li metal batteries are promising candidates for energy storage systems. However, thorny issues associated with undesired reactions and contact failure at the anode interface hinder their commercialization. Herein, an indium foil was endowed with a formed interlayer whose surface film is enriched with LiF and LiIn phases via a feasible prelithiation route. The lithiated alloy of the interlayer can regulate Li+ flux and charge distribution as a Li reservoir, benefiting uniform Li deposition. Meanwhile, it can suppress the reductive decomposition of the Li6PS5Cl electrolyte and maintain sufficient solid-solid contact. In situ impedance spectra reveal that constant interface impedance and fast charge transfer are realized by the interlayer. Further, long-term Li stripping/plating over 2000 h at 2.55 mA cm-2 is demonstrated by this anode. All-solid-state cells employing a LiCoO2 cathode and the Pre In anode can work for over 700 cycles with a capacity retention of 96.15% at 0.5 C.

4.
Pulm Pharmacol Ther ; 82: 102244, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37499855

RESUMO

OBJECTIVE: This study mainly analyzes the mechanism of SIRT3 alleviating sepsis-induced acute lung injury (ALI) by regulating the deacetylation of FoxO3a and inhibiting pyroptosis. METHODS: SIRT3-overexpressing and silenced BEAS-2B cells were used to evaluate the effect of SIRT3 on apoptosis in LPS-treated lung epithelial cells. FoxO3a-silenced BEAS-2B cells were also used to verify the mechanism by which SIRT3 inhibited oxidative stress and pyroptosis in vitro in ALI. 3-TYP was used to inhibit the deacetylation function of SIRT3 in vivo. Pyroptosis was assessed by detecting GSDMD-N and LDH efflux. RESULTS: In CLP-induced ALI mice, GSDMD-N and LDH levels were elevated, pyroptosis was induced. Silencing of SIRT3 exacerbated oxidative stress, NLRP3 activation and pyroptosis, and inhibited the deacetylation of FoxO3a. Overexpression of SIRT3 attenuated pyroptosis, induced deacetylation and restored the expression of FoxO3a and MnSOD. Silencing FoxO3a aggravated pyroptosis. Overexpression of SIRT3 restored the reduced FoxO3a expression and suppressed pyroptosis. 3-TYP blocked the promotion of FoxO3a by SIRT3 and the inhibitory effect of SIRT3 on pyroptosis. CONCLUSION: The reduction of SIRT3 in sepsis caused hyperacetylation of FoxO3a, which in turn exacerbates oxidative stress and induces pyroptosis of ALI. Increasing the level of SIRT3 promotes FoxO3a through deacetylation, thereby inhibiting pyroptosis and relieving ALI.


Assuntos
Lesão Pulmonar Aguda , Sepse , Sirtuína 3 , Animais , Camundongos , Lesão Pulmonar Aguda/etiologia , Apoptose , Lipopolissacarídeos , Piroptose , Sepse/complicações , Sirtuína 3/genética
5.
Sensors (Basel) ; 23(21)2023 Oct 27.
Artigo em Inglês | MEDLINE | ID: mdl-37960454

RESUMO

Linear conveyors, traditional tools for cargo transportation, have faced criticism due to their directional constraints, inability to adjust poses, and single-item conveyance, making them unsuitable for modern flexible logistics demands. This paper introduces a platform designed to convey and adjust cargo boxes according to their spatial positions and orientations. Additionally, a cargo pose recognition algorithm that integrates image and point cloud data are presented. By aligning depth camera data, the axis-aligned bounding box (AABB) point serves as the image's region of interest (ROI). Peaks extracted from the image's Hough transform are refined using RANSAC-based point cloud linear fitting, then integrated with the point cloud's oriented bounding box (OBB). Notably, the algorithm eliminates the need for deep learning and registration, enabling its use in rectangular cargo boxes of various sizes. A comparative experiment using accelerometer sensors for pose acquisition revealed a deviation of <0.7° between the two processes. Throughout the real-time adjustments controlled by the experimental platform, cargo angles consistently remained stable. The proposed two-dimensional conveyance platform, compared to existing methods, exhibits simplicity, accurate recognition, enhanced flexibility, and wide applicability.

6.
Cell Biol Int ; 46(1): 148-157, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34694031

RESUMO

Currently, the prevention of ischemic diseases such as myocardial infarction associated with ischemia/reperfusion (I/R) injury remains to be a challenge. Thus, this study was designed to explore the effects of tripartite motif protein 11 (TRIM11) on cardiomyocytes I/R injury and its underlying mechanism. Cardiomyocytes AC16 were used to establish an I/R injury cell model. After TRIM11 downregulation in I/R cells, cell proliferation (0, 12, 24, and 48 h) and apoptosis at 48 h as well as the related molecular changes in oxidative stress-related pathways was detected. Further, after the treatment of TRIM11 overexpression, SP600125, or DUSP1 overexpression, cell proliferation, apoptosis, and related genes were detected again. As per our findings, it was determined that TRIM11 was highly expressed in the cardiomyocytes AC16 after I/R injury. Downregulation of TRIM11 was determined to have significantly reduced I/R-induced proliferation suppression and apoptosis. Besides, I/R-activated c-Jun N-terminal kinase (JNK) signaling and cleaved caspase 3 and Bax expression were significantly inhibited by TRIM11 downregulation. In addition, the overexpression of TRIM11 significantly promoted apoptosis in AC16 cells, and JNK1/2 inhibition and DUSP1 overexpression potently counteracted the induction of TRIM11 overexpression in AC16 cells. These suggested that the downregulation of TRIM11 attenuates apoptosis in AC16 cells after I/R injury probably through the DUSP1-JNK1/2 pathways.


Assuntos
Apoptose , Fosfatase 1 de Especificidade Dupla/metabolismo , Proteína Quinase 8 Ativada por Mitógeno/metabolismo , Proteína Quinase 9 Ativada por Mitógeno/metabolismo , Traumatismo por Reperfusão Miocárdica/enzimologia , Miócitos Cardíacos/enzimologia , Proteínas com Motivo Tripartido/metabolismo , Ubiquitina-Proteína Ligases/metabolismo , Hipóxia Celular , Linhagem Celular , Regulação para Baixo , Fosfatase 1 de Especificidade Dupla/genética , Humanos , Traumatismo por Reperfusão Miocárdica/genética , Traumatismo por Reperfusão Miocárdica/patologia , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Miócitos Cardíacos/patologia , Transdução de Sinais , Proteínas com Motivo Tripartido/genética , Ubiquitina-Proteína Ligases/genética
7.
Wei Sheng Yan Jiu ; 44(5): 818-21, 2015 Sep.
Artigo em Zh | MEDLINE | ID: mdl-26591782

RESUMO

OBJECTIVE: To investigate the cardiac injury effect of different intensities microwave radiation on rabbits and its possible mechanism. METHODS: Rabbits were radiated by intensity of 50, 100, 150 and 200 mW/cm2 2450 MHz microwave for 20 min. 6 h after microwave radiation, the heart tissue was taken. ATP and mitochondria complex IV and V were measured in myocardial cells. The changes of myocardial tissue were observed by light microscopic. The expression of Caspase-3 and HSP 70 were detected by western blotting. RESULTS: The activity of ATP and mitochondria complex IV and V decreased significantly compared with normal control in cardiac tissue. 100, 150 and 200 mW/cm2 microwave radiation group vs. control group (P <0. 05). The HE staining result showed that myocardial cell appears edema, muscle fiber malalignment, cells appeared obvious injury. Results of western blotting showed that the expression of Caspase-3 and HSP 70 protein increased significantly in different dosage radiation group (P <0. 05). CONCLUSION: Microwave radiation has injury effect on rabbit heart. The possible mechanism may be related with inducing cell apoptosis by changing of stress level in myocardial cell.


Assuntos
Apoptose/efeitos da radiação , Caspase 3/efeitos da radiação , Proteínas de Choque Térmico HSP70/efeitos da radiação , Traumatismos Cardíacos , Micro-Ondas/efeitos adversos , Animais , Western Blotting , Proteínas , Coelhos
8.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 34(7): 864-8, 2014 Jul.
Artigo em Zh | MEDLINE | ID: mdl-25137855

RESUMO

OBJECTIVE: To investigate the effect of Inonotus obliquus polysaccharides on testicular injury induced by exposure to high power microwave (HPM) in rats. METHODS: A total of 30 male Wistar rats were randomly divided into 5 groups, i.e., the normal control group, the microwave radiation model group, the treatment group, the new microwave radiation model group, and the prevention group, 6 in each group. All rats, except those in the normal control group, were exposed to microwave at an average power density of 200 mW/cm2 for 6 min. Rats in the control group and the model group were administered with normal saline by gastrogavage, once a day. Rats in the treatment group and the prevention group were given with Inonotus obliquus polysaccharides by gastrogavage, 2 mL each time (400 mg/kg body weight), once a day. All rats were sacrificed on the 11th day.The sperm density and the rate of sperm deformity were determined. Pathological changes of testis were observed by light microscope and transmission electron microscope. RESULTS: Short-term HPM irradiation could significantly reduce the sperm density and increase the sperm deformity rate (P < 0.05). Meanwhile, obvious pathological changes of testes occurred. Compared with the two model groups, the sperm density increased and the sperm deformity rate decreased in the treatment group and the prevention group (P < 0.05). Under the light microscope, injuries of spermatogenic cells and stromal cells, as well as vascular dilatation and congestion were obviously alleviated in the treatment group and the prevention group. Mitochondrial swelling and endoplasmic reticulum expansion shown by ultrastructural observation were also significantly alleviated. Of them, injuries of spermatogenic cells and inflammation response were milder in the treatment group than in the prevention group. CONCLUSIONS: Inonotus obliquus polysaccharides had significant protective effect on microwave radiation induced testicular injury. Better effect was obtained by therapeutic medication than preventive medication.


Assuntos
Basidiomycota/química , Micro-Ondas/efeitos adversos , Polissacarídeos/farmacologia , Lesões Experimentais por Radiação/prevenção & controle , Testículo/efeitos dos fármacos , Animais , Masculino , Protetores contra Radiação/farmacologia , Ratos , Ratos Wistar , Testículo/patologia , Testículo/efeitos da radiação
9.
Wei Sheng Yan Jiu ; 42(6): 1008-11, 2013 Nov.
Artigo em Zh | MEDLINE | ID: mdl-24459920

RESUMO

OBJECTIVE: To investigate on the proliferation effect of different intensities 2450 MHz microwave radiation on human pancreatic cancer JF305 cells and its possible mechanism. METHODS: JF305 cells were radiated by intensity of 2.5, 5.0, 10.0, 15.0 and 20.0 mW/cm2 microwave for 20 min. The proliferation capacity of JF305 was measured by MTT assays, Annexin V-FITC and PI staining was used for detecting cell apoptosis. The activity of Caspase-3 was examined. The expressions of Caspase-3 and HSP 70 protein after the cell treatment with microwave were detected by Western blotting. RESULTS: After microwave radiation, the proliferation inhibition rates of JF305 cells were significantly higher compared with control group. Annexin V-FITC and PI staining result showed that microwave radiation could induce cell apoptosis. Caspase-3 increased after radiated by microwave, compared with control group (P < 0.05). Results of Western blotting showed that the expression of Caspase-3 and HSP 70 protein increased significantly in different dosage radiation group. CONCLUSION: Microwave radiation can inhibit the proliferation of JF305 cells, the possible mechanism may be related with inducing cell apoptosis by changing of stress level.


Assuntos
Apoptose/efeitos da radiação , Proliferação de Células/efeitos da radiação , Micro-Ondas , Neoplasias Pancreáticas/patologia , Caspase 3/metabolismo , Linhagem Celular Tumoral , Proteínas de Choque Térmico HSP70/metabolismo , Humanos
10.
Clin Drug Investig ; 43(8): 643-652, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37542611

RESUMO

BACKGROUND AND OBJECTIVES: Advanced esophageal squamous cell carcinoma (ESCC) is a prevalent and highly malignant tumor with a poor prognosis. Recently, the RATIONALE-306 trial demonstrated that tislelizumab combined with chemotherapy provided overall survival benefits for these patients. This study aimed to assess the cost-effectiveness of this treatment approach in Chinese patients with advanced ESCC from the perspective of healthcare system. METHODS: A Markov model was constructed to assess the economic and health benefits associated with tislelizumab plus chemotherapy over a 10-year lifetime horizon, utilizing data from the RATIONALE-306 trial. The analysis encompassed the calculation of several key parameters, including the incremental cost-effectiveness ratio (ICER), total cost, incremental cost, total effectiveness, and incremental effectiveness. Tislelizumab was considered cost-effective if the ICER obtained was below the willingness-to-pay (WTP) threshold of US$38,223 per quality-adjusted life-year (QALY); otherwise, it would be deemed not cost-effective. To ensure the robustness of the findings, the results were subjected to one-way sensitivity analysis and probabilistic sensitivity analysis (PSA). RESULTS: In the base-case analysis, the incremental effectiveness and cost associated with tislelizumab plus chemotherapy, compared to chemotherapy alone, were determined to be 0.40 QALY and US$7604, respectively. This resulted in an ICER of US$18,846 per QALY, which is below the WTP threshold of US$38,223 per QALY. Furthermore, the results from the one-way sensitivity analysis and PSA indicated robustness of the findings. CONCLUSION: Our lifetime simulation study demonstrated that, in the case of advanced ESCC, the combination of tislelizumab and chemotherapy offers increased effectiveness compared to chemotherapy alone, albeit at a higher cost. Moreover, considering the current WTP threshold in China, the addition of tislelizumab to chemotherapy is considered a cost-effective approach.


Assuntos
Neoplasias Esofágicas , Carcinoma de Células Escamosas do Esôfago , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica , Análise Custo-Benefício , Análise de Custo-Efetividade , População do Leste Asiático , Neoplasias Esofágicas/tratamento farmacológico , Carcinoma de Células Escamosas do Esôfago/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto
11.
ChemSusChem ; 16(16): e202300417, 2023 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-37096685

RESUMO

Single-crystal nickel-rich materials are promising alternatives to polycrystalline cathodes owing to their excellent structure stability and cycle performance while the cathode material usually appears high cation mixing, which may have a negative effect on its electrochemical performance. The study presents the structural evolution of single-crystal LiNi0.83 Co0.12 Mn0.05 O2 in the temperature-composition space using temperature-resolved in situ XRD and the cation mixing is tuned to improve electrochemical performances. The as-synthesized single-crystal sample shows high initial discharge specific capacity (195.5 mAh g-1 at 1 C), and excellent capacity retention (80.1 % after 400 cycles at 1 C), taking account of lower structure disorder (Ni2+ occupying Li sites is 1.56 %) and integrated grains with an average of 2-3 µm. In addition, the single-crystal material also displays a superior rate capability of 159.1 mAh g-1 at the rate of 5 C. This excellent performance is attributed to the rapid Li+ transportation within the crystal structure with fewer Ni2+ cations in Li layer as well as intactly single grains. In sum, the regulation of Li+ /Ni2+ mixing provides a feasible strategy for boosting single-crystal nickel-rich cathode material.

12.
Ann Transl Med ; 10(22): 1234, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36544684

RESUMO

Background: ß-blockers have been used in the treatment of end-stage renal disease (ESRD) patients and cardiovascular disease (CVD) patients, separately. However, the effects of ß-blockers on ESRD patients with CVD have not been fully investigated. This study sought to investigate the effects of ß-blockers therapy on the 28-day and 3-year survival rates of ESRD patients with pre-existing CVD who were admitted to the intensive care unit (ICU). Methods: After excluding patients without CVD, receiving a kidney transplant, not admitted to the ICU, and with missing baseline data, this cohort study included 1081 ESRD participants with CVD from the Medical Information Mark for Intensive Care III database. Baseline characteristics, including demographic data and clinical data, were collected. The outcomes were 28-day and 3-year survival rates of the patients. At the 28-day of ICU hospitalization, patients had a mean inpatient hospital stay of 24.7 days. At 3-year, the patients had a median survival time of 489.2 days. Univariate and multivariate Cox regression analyses were used to evaluate the effects of ß-blockers therapy on the 28-day and 3-year survival outcomes of ESRD patients with CVD. Results: The 28-day and 3-year survival rates were 82.8% and 37.9%, respectively. The mean age of the all patients was 68 years, and 642 were male. After adjusting for age, race, hyperlipidemia, dialysis, simplified acute physiological score (SAPS) II, sequential organ failure assessment (SOFA) score, glucocorticoid, hemoglobin, diabetes, hypertension, the 28-day survival rate of the ESRD patients with CVD requiring intensive care who received ß-blockers therapy was higher than that of the patients who did not receive the treatment. Similarly, after adjusting for age, race, hyperlipidemia, dialysis, SAPS II, SOFA score, glucocorticoid, hemoglobin, diabetes, hypertension, creatinine, the long-term survival rate of the patients who received ß-blockers therapy was also higher than that of those who did not. Conclusions: ß-blockers therapy was associated with increased 28-day and 3-year survival rates in ESRD patients with CVD requiring intensive care. Our findings may provide a theoretical basis for the prognostic impact of ß-blockers therapy among patients with ESRD and CVD who were admitted to the ICU.

13.
Wei Sheng Yan Jiu ; 40(2): 223-6, 2011 Mar.
Artigo em Zh | MEDLINE | ID: mdl-21560316

RESUMO

OBJECTIVE: Discuss the effect degree and phase of microwave radiation on the hematopoietic system in rats, and to provide basis for human health life. METHODS: Use the methods of blood cell analysis and Wright-Gimsa stain to analyse the peripheral blood cell and marrow smear of the different time (1d, 7d and 14d) Wistar rats that exposured by different radiation dose. RESULTS: Compare with the untreated control group, various cell parameters of blood in the microwave radiation rats had different changes, and their marrow smear was obviously destroyed;especially the group treated with 200 mW/cm2 microwave exposure had more significant change at seven-day. For the 14d group,the other hematological parameters all return to control except WBC, LY#, MID# and N# increase,PLT and PCT remain lower. CONCLUSION: Microwave radiation can influence hematological system of rats, and with the radiation dose increased, the effect is more significant.


Assuntos
Exposição Ambiental/efeitos adversos , Sistema Hematopoético/efeitos da radiação , Micro-Ondas/efeitos adversos , Animais , Células Sanguíneas/efeitos da radiação , Medula Óssea/efeitos da radiação , Relação Dose-Resposta à Radiação , Feminino , Masculino , Ratos , Ratos Wistar
14.
Sci Total Environ ; 785: 147286, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-33932676

RESUMO

Epibiotic bacterial community colonized on the plant leaf plays important roles in promoting plant growth and nutrient absorption, but is sensitive to environmental changes. As one of the most important environmental factors affecting the growth of plants and photosynthetic microorganisms, light may affect the diversity, composition, and interactions of the epibiotic bacterial community. Submerged plants in the aquatic ecosystem may be more sensitive to light intensity variations compared to the terrestrial plants since they usually receive less light. However, the effects of light on the interactions between the submerged plants and their epibiotic microbial communities remain uncertain. Here we used the 16S rRNA gene high-throughput sequencing to investigate the diversity and composition of the bacterioplankton and epibiotic bacterial communities of the Cabomba caroliniana under four different shading levels. A total of 24 water and leaf samples were collected from the experimental microcosms near Lake Taihu. We found the epibiotic bacterial community possessed a higher diversity than that of the bacterioplankton community, although the alpha diversity of the bacterioplankton community was more susceptible to different levels of shading. SourceTracker analysis revealed that with the increase of shading, the colonization of bacterioplankton to epibiotic bacteria decreased. Network analysis showed that the bacterial community network at 50% shading level had the lowest modularity and highest clustering coefficient compared to the bacterial community networks of other shading levels. Our findings provided new understandings of the effects of different light intensities on the epibiotic bacterial communities of submerged macrophytes.


Assuntos
Ecossistema , Microbiota , Organismos Aquáticos , Bactérias/genética , Lagos , Plâncton , RNA Ribossômico 16S/genética
15.
Wei Sheng Yan Jiu ; 39(1): 93-4, 2010 Jan.
Artigo em Zh | MEDLINE | ID: mdl-20364600

RESUMO

OBJECTIVE: To investigate the effect of Arg-Gly-Asp peptides (RGD peptides)on the secretion of vascular endothelial growth factor (VEGF) from vascular endothelial cells (VEC) and the mechanism. METHODS: Using VEC cultured from the arteries of human greater omentum as a model, and detecting the content of VEGF and the activity of protein kinase C (PKC) under different concentration of RGD. RESULTS: After incubation with 100-300 mg/ml of RGD peptide for 24h, the VEGF content and the activity of PKC in experimental group was significantly higher than that in control group (P < 0.01). CONCLUSION: The stimulation of RGD peptide to the secretion of VEGF from VEC is in a dose-dependent way, and the stimulation is regulated by activating PKC.


Assuntos
Células Endoteliais/metabolismo , Oligopeptídeos/farmacologia , Fator A de Crescimento do Endotélio Vascular/metabolismo , Artérias/citologia , Células Cultivadas , Células Endoteliais/efeitos dos fármacos , Humanos , Omento/irrigação sanguínea
16.
Bioresour Technol ; 300: 122746, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31956057

RESUMO

In order to maximize the substrate conversion, co-production of hydrogen and methane from two-stage anaerobic digestion has attracted wide attention. In two-stage fermentation process, the cohesive strategy is considered as a key indicator for bio-hythane yield. In this work, corncob powder was utilized as raw material. The pH of fermentative broth, bio-hythane yield, gas production rate and energy conversion efficiency were taken as indexes. Under the directional control of bio-chemical reaction process, the effects of diverse coupling time nodes on the fermentation process and the bio-hythane co-production potential were investigated. The results showed that when the coupling time node was 48 h, hydrogen production potential and methane production potential were 22.29 mL/g TS and 141.14 mL/g TS, respectively. The hydrogen content in the bio-hythane was 13.64% which satisfied the hydrogen concentration requirement, and the energy conversion efficiency was 27.6%.


Assuntos
Reatores Biológicos , Zea mays , Anaerobiose , Fermentação , Hidrogênio , Metano
17.
ACS Appl Mater Interfaces ; 12(2): 2671-2678, 2020 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-31899615

RESUMO

Transition-metal sulfides have been considered as promising anode materials for lithium-ion batteries (LIBs) due to their high theoretical specific capacity and superior electrochemical performance. However, the large volume change during the discharge/charge process causes structural pulverization, resulting in rapid capacity decline and the loss of active materials. Herein, we report Co1-xS hollow spheres formed by in situ growth on reduced graphene oxide layers. When evaluated as an anode material for LIBs, it delivers a specific capacity of 969.8 mAh·g-1 with a high Coulombic efficiency of 96.49% after 90 cycles. Furthermore, a high reversible capacity of 527.2 mAh·g-1 after the 107th cycle at a current density of 2.5 A g-1 is still achieved. The results illustrate that in situ growth on the graphene layers can enhance conductivity and restrain volume expansion of cobalt sulfide compared with ex situ growth.

18.
Chin J Integr Med ; 15(2): 156-60, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19407959

RESUMO

Inonotus obliquus has high nutritional and medicinal value, especially in treating malignant tumors, diabetes, cardiovascular disease and AIDS, attracting significant attention from scholars in recent years. In this paper, the biological characteristics, chemical composition and pharmacologic effects of Inonotus obliquus were summarized. And the applications in medicine and food were introduced. Future research on Inonotus obliquus was also discussed in order to make Inonotus obliquus obtain effective exploitation and satisfy people's demands.


Assuntos
Basidiomycota , Pesquisa Biomédica/tendências , Medicamentos de Ervas Chinesas/uso terapêutico , Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Antineoplásicos/química , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Antioxidantes/química , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Antivirais/química , Antivirais/farmacologia , Antivirais/uso terapêutico , Basidiomycota/química , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/farmacologia , Humanos , Hipoglicemiantes/química , Hipoglicemiantes/farmacologia , Hipoglicemiantes/uso terapêutico , Inibidores da Agregação Plaquetária/química , Inibidores da Agregação Plaquetária/farmacologia , Inibidores da Agregação Plaquetária/uso terapêutico , Triterpenos/química , Triterpenos/isolamento & purificação
19.
Sci Total Environ ; 593-594: 330-336, 2017 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28346906

RESUMO

The specific effects of long-term exposure to high air pollution on human health and biological remain unclear. To explore the adverse health effects as well as biological mechanisms and biomarkers for durative exposure to air pollution, 183 traffic policemen and 88 office policemen were enrolled in this study. The concentration of PM2.5 in both the traffic and office policemen's working environments were obtained. Detailed personal questionnaires were completed and levels of inflammation, oxidative stress and DNA damage markers of all participants were analyzed in this study. The average PM2.5 concentration of the intersections of main roads and the offices of control group were 132.4±48.9µg/m3 and 50.80±38.6µg/m3, respectively. The traffic policemen, who stably exposed to at least 2 times higher PM2.5 in their work area as compared with the control group, have a median average duration of 7.00years, and average cumulative intersection duty time reached 8030h. No statistically significant differences in the levels of inflammation markers were observed between the traffic and office policemen. However, the DNA damage markers in traffic policemen shared significant positive correlation with cumulative intersection duty time and higher than those in the office policemen. Multiple linear regression analysis demonstrated that the increase of cumulative intersection duty time by 1h per day for one year was associated with the increase in 8-hydroxy-20-deoxyguanosine of 0.329% (95% CI: 0.249% to 0.409%), tail DNA of 0.051% (95% CI: 0.041% to 0.061%), micronucleus frequency of 0.036‰ (95% CI: 0.03‰ to 0.043‰), and a decrease in glutathione of 0.482% (95% CI: -0.652% to -0.313%). These findings suggest that long-term exposure to high air pollution could induce cumulative DNA damages, supporting the hypothesis that durative exposure to air pollution is associated with an increased risk of cancer.


Assuntos
Poluição do Ar/efeitos adversos , Dano ao DNA , Exposição por Inalação/efeitos adversos , Polícia , Adulto , Biomarcadores , China , Humanos , Masculino , Pessoa de Meia-Idade , Emissões de Veículos
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