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1.
J Environ Manage ; 360: 121221, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38796873

RESUMO

A thorough study of the spatial impact of the digital economy on low-carbon logistics efficiency would be greatly significant for Regional Comprehensive Economic Partnership (RCEP) countries to improve low-carbon logistics efficiency and achieve sustainable cooperation. This study constructs a theoretical framework from the perspective of spatial effects on the impact of the digital economy on low-carbon logistics efficiency in RCEP countries. The entropy method was used to measure the level of digital economic development. The super-efficiency SBM model was used to measure low-carbon logistics efficiency. Spatial feature analysis was conducted using kernel density estimation and Moran's index, followed by empirical analysis using spatial econometric models to examine the spatial impact of the digital economy on low-carbon logistics efficiency in RCEP countries. The results indicate that in RCEP countries, both low-carbon logistics efficiency and the level of digital economic development exhibit significant spatial positive correlation. Furthermore, the digital economy can promote low-carbon logistics efficiency in economically neighboring countries through spatial spillover effects. The improvement of domestic low-carbon logistics efficiency can also promote low-carbon logistics efficiency in neighboring countries. This conclusion was supported by endogeneity tests and a convergence analysis. Additionally, the mechanism analysis revealed that improving the level of green energy can enhance the spatial spillover effects of the digital economy and promote low-carbon logistics efficiency. Finally, countermeasures and suggestions was proposed to improve the low-carbon logistics efficiency of RCEP countries through the digital economy.


Assuntos
Desenvolvimento Econômico , Carbono
2.
J Neuroinflammation ; 16(1): 52, 2019 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-30823934

RESUMO

BACKGROUND: Amlexanox (ALX), a TBK1 inhibitor, can modulate immune responses and has anti-inflammatory properties. To investigate its role in regulating the progression of experimental autoimmune encephalomyelitis (EAE), we studied the effect of ALX on the maturation of dendritic cells (DCs) and the responses of effector and regulatory T cells (Tregs). METHODS: In vitro, bone marrow-derived DCs (BMDCs) were cultured and treated with ALX. Their proliferation, maturation, and their stimulatory function to induce T cells responses were detected. In vivo, the development of EAE from different groups was recorded. At the peak stage of disease, HE, LFB, and electronic microscope (EM) were used to evaluate inflammation and demyelination. Maturation of splenic DC and Th1/Th17/Treg response in the CNS and peripheral were also detected. To further explore the mechanism underlying the action of ALX in DC maturation, the activation of TBK1, IRF3, and AKT was analyzed. RESULTS: Our data indicated that ALX significantly inhibited the proliferation and maturation of BMDCs, characterized by the reduced MHCII, a co-stimulatory molecule, IL12, and IL-23 expression, along with morphological alterations. Co-culture of ALX-treated BMDCs inhibited allogeneic T cell proliferation and MOG-specific T cell response. In EAE mice, ALX significantly attenuated the EAE development by decreasing inflammatory infiltration and demyelination in the spinal cords, accompanied by reduced frequency of splenic pathogenic Th1 and Th17 cells and increased Tregs. Moreover, ALX treatment decreased Th1 and Th17 cytokines, but increased Treg cytokines in the CNS and spleen. Notably, ALX treatment reduced the frequency and expression of CD80 and CD86 on splenic DCs and lowered IL-12 and IL-23 secretion, further supporting an impaired maturation of splenic DCs. In addition, ALX potently reduced the phosphorylation of IRF3 and AKT in BMDC and splenic DCs, both of which are substrates of TBK1 and associated with DC maturation. CONCLUSIONS: ALX, a TBK1 inhibitor, mitigated EAE development by inhibiting DC maturation and subsequent pathogenic Th1 and Th17 responses while increasing Treg responses through attenuating the TBK1/AKT and TBK1/IRF3 signaling.


Assuntos
Aminopiridinas/farmacologia , Células Dendríticas/efeitos dos fármacos , Encefalomielite Autoimune Experimental/imunologia , Linfócitos T/efeitos dos fármacos , Animais , Diferenciação Celular/efeitos dos fármacos , Diferenciação Celular/imunologia , Fator Regulador 3 de Interferon/efeitos dos fármacos , Fator Regulador 3 de Interferon/metabolismo , Ativação Linfocitária/efeitos dos fármacos , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Proteínas Serina-Treonina Quinases/efeitos dos fármacos , Proteínas Serina-Treonina Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-akt/metabolismo , Transdução de Sinais/efeitos dos fármacos , Linfócitos T/imunologia , Linfócitos T Reguladores/efeitos dos fármacos , Linfócitos T Reguladores/imunologia , Células Th1/efeitos dos fármacos , Células Th1/imunologia , Células Th17/efeitos dos fármacos , Células Th17/imunologia
3.
Eur Radiol ; 25(2): 516-22, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25097135

RESUMO

OBJECTIVES: The purpose of this study was to investigate the use of MRI in predicting prostate growth and development. METHODS: A total of 1,500 healthy male volunteers who underwent MRI of the pelvis were included in this prospective study. Subjects were divided into five groups according to age (group A, 2-5 years; group B, 6-10 years; group C, 11-15 years; group D, 16-20 years; group E, 21-25 years). Total prostate volume (TPV) as well as prostate central zone (CZ) and peripheral zone (PZ) were measured and evaluated on MRI. Data of the different groups were compared using variance analysis, Scheffé's method, Kruskal-Wallis H-test, and Pearson's correlation. Statistical significance was inferred at P < 0.05. RESULTS: In groups A and B, the prostates were barely visible. In group C, although TPV was measured, it was hard to distinguish CZ and PZ. In group D, 136 CZ and PZ were clearly visible. In group E, 377 CZ and PZ were clearly visible on T2-weighted imaging (T2WI). The median TPVs of groups A, B, C, D, and E were 0.00 cm(3), 0.05 cm(3), 2.83 cm(3), 8.32 cm(3,) and 11.56 cm(3), respectively, and the median prostate development scores were 0.08, 0.69, 1.56, 2.38, and 2.74, respectively. Both TPVs and zonal anatomy scores varied significantly among the five groups (P = 0.000). TPV and zonal anatomy score increased with increasing age. CONCLUSIONS: MRI provides a reliable quantitative reference for prostate growth and development. KEY POINTS: • When and how the prostate develops after birth remains unclear. • Prostate volume increases rapidly after the age of 10 years. • MRI provides a reliable objective and quantitative reference for prostate growth and development.


Assuntos
Envelhecimento , Imageamento por Ressonância Magnética/métodos , Próstata/anatomia & histologia , Próstata/crescimento & desenvolvimento , Doenças Prostáticas/diagnóstico , Adolescente , Adulto , Criança , Pré-Escolar , Seguimentos , Humanos , Masculino , Estudos Prospectivos , Valores de Referência , Reprodutibilidade dos Testes , Adulto Jovem
4.
Sci Total Environ ; 948: 174858, 2024 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-39034011

RESUMO

Rhizodeposition encompasses the intricate processes through which plants generate organic compounds via photosynthesis, store these compounds within aboveground biomass and roots through top-down transport, and subsequently release this organic matter into the soil. Rhizodeposition represents one of the carbon (C) cycle in soils that can achieve long-term organic C sequestration. This function holds significant implications for mitigating the climate change that partly stems from the greenhouse effect associated with increased atmospheric carbon dioxide levels. Therefore, it is essential to further understand how the process of rhizodeposition allocates the photosynthetic C that plants create via photosynthesis. While many studies have explored the basic principles of rhizodeposition, along with the associated impact on soil C storage, there is a palpable absence of comprehensive reviews that summarize the various factors influencing this process. This paper compiles and analyzes the literature on plant rhizodeposition to describe how rhizodeposition influences soil C storage. Moreover, the review summarizes the impacts of soil physicochemical, microbial, and environmental characteristics on plant rhizodeposition and priming effects, and concludes with recommendations for future research.


Assuntos
Carbono , Raízes de Plantas , Plantas , Solo , Solo/química , Carbono/metabolismo , Plantas/metabolismo , Raízes de Plantas/metabolismo , Mudança Climática , Ciclo do Carbono , Sequestro de Carbono , Fotossíntese , Rizosfera
5.
Chem Sci ; 15(29): 11347-11357, 2024 Jul 24.
Artigo em Inglês | MEDLINE | ID: mdl-39055007

RESUMO

Rational design of small organic molecule-based NIR-II photosensitizers (PSs) with high singlet oxygen quantum yield in aqueous solution for deep tissue imaging and cancer therapy still presents challenges. Herein, we devised a general synthesis strategy to obtain six NIR-II region PSs with tunable aggregation states by adjusting the steric effect, and all PSs possess longer NIR absorption/emission wavelengths with tails extending beyond 1200 nm. Notably, ATX-6 possessed a singlet oxygen quantum yield of 38.2% and exhibited concentration-dependent J-aggregation properties upon self-assembly in an aqueous solution. What's more, supramolecular engineering with DSPE-PEG2000 further enhanced its degree of J-aggregation, which was attributed to the dimer-excited reduction of the energy levels of the single-linear/triple-linear states and the facilitation of intersystem crossover processes. In addition, ATX-6 NPs showed superior photodynamic therapy effects and great potential in high-contrast in vivo bioimaging of the NIR-II region. These results provide valuable insights for achieving the diagnostic and therapeutic integration of tumors.

6.
Heliyon ; 9(2): e13022, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36798781

RESUMO

Middle aortic syndrome (MAS) is a rare atypical aortic coarctation (AC), often accompanied by refractory renal hypertension, which eventually leads to death from congestive heart failure, stroke or hypertensive encephalopathy. Computed tomography angiography (CTA) has unique advantages in assessing aortic stenosis and splanchnic artery abnormalities. Prompt aortic bypass surgery can relieve symptoms and improve quality of life. In this study, we report a patient with MAS diagnosed by CTA and follow-up after thoracoabdominal aortic bypass grafting.

7.
J Interv Card Electrophysiol ; 63(3): 723-736, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35124782

RESUMO

PURPOSE: Dysregulation of long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) plays important roles in atrial fibrillation (AF). This study aimed to identify crucial lncRNAs, miRNAs, and mRNAs in AF based on whole transcriptome sequencing. METHODS: Thirty Sprague Dawley rats were randomly stratified into control and chronic intermittent hypoxia (CIH) groups (n = 15 in each). Hematoxylin-eosin staining, Masson staining, immunohistochemical assay, and western blotting were used to evaluate this model. Thereafter, atrial tissues were sent for whole transcriptome sequencing. Finally, fibrosis-related competing endogenous RNA (ceRNA) regulatory networks were built, and the relative levels of lncRNAs, miRNAs, and mRNAs were validated by real-time quantitative polymerase chain reaction (RT-qPCR) or western blotting. RESULTS: A CIH-induced atrial fibrosis rat model was successfully constructed. After sequencing, 268 differentially expressed lncRNAs (DELs), 20 differentially expressed miRNAs (DEMs), and 436 differentially expressed genes (DEGs) were identified. Functional analyses showed that these DEGs were associated with several processes and pathways, including "cell division," "IL-17 signaling pathway," "NOD-like receptor signaling pathway," and "cell adhesion molecules." Fibrosis-related ceRNA networks were then built, comprising five lncRNAs, seven miRNAs, and 19 DEGs. RT-qPCR and western blotting results showed that the patterns of lncRNAs (NONRATT016396.2, NONRATT001596.2, NONRATT011456.2), miRNAs (miR-10b-3p, miR-29b-3p), and mRNAs (Gng7 and Wnt2b) were consistent with sequencing analyses. CONCLUSIONS: The DELs, DEMs, and DEGs identified in this study may participate in atrial fibrosis processes, and the occurrence and progression of AF.


Assuntos
MicroRNAs , RNA Longo não Codificante , Animais , Fibrose , Redes Reguladoras de Genes , Humanos , MicroRNAs/genética , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Ratos , Ratos Sprague-Dawley , Sequenciamento do Exoma
8.
Oral Oncol ; 119: 105370, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34157553

RESUMO

Secretory carcinoma (SC) and acinic cell carcinoma (AciCC) are two rare tumors originating in the salivary gland of the head and neck. Before the World Health Organization (WHO) classified SC as a new entity in 2017, the majority of SC cases were incorrectly diagnosed as AciCC. Indeed, they are similar in biological behaviors, clinical manifestations and histomorphological features. Especially, SC and zymogen granule-poor AciCC are difficult to differentiate, which brings a tough challenge in clinical diagnosis. This article provides an updated understanding of the differential diagnosis in SC and AciCC from two main perspectives: histopathology and molecular genetics. The targeted therapies for both tumors are also mentioned. It aims to give some hints in clinical diagnosis and treatment, in hopes that patients with adequate diagnosis could obtain the opportunityformore effective treatment.


Assuntos
Carcinoma de Células Acinares , Carcinoma , Neoplasias das Glândulas Salivares , Biomarcadores Tumorais , Carcinoma/diagnóstico , Carcinoma/terapia , Carcinoma de Células Acinares/diagnóstico , Carcinoma de Células Acinares/terapia , Diagnóstico Diferencial , Humanos , Neoplasias das Glândulas Salivares/diagnóstico , Neoplasias das Glândulas Salivares/terapia
9.
Microbiol Resour Announc ; 10(41): e0080821, 2021 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-34647798

RESUMO

New Delhi metallo-ß-lactamase (NDM)-producing Enterobacteriaceae pose a great threat to public health globally. Most known NDM-producing Enterobacteriaceae are associated with human hospital or community infections. Here, we report the draft genome sequence of an NDM-1-encoding Klebsiella pneumoniae strain isolated from feral swine (Sus scrofa) captured in Florida, USA.

10.
Technol Cancer Res Treat ; 19: 1533033820980117, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33349156

RESUMO

Accumulating evidence have suggested that long non-coding RNAs (lncRNAs) act as a critical regulator in tumorgenesis. LncRNA KCNQ1OT1 (KCNQ1OT1) has been recently shown to be dysregulated in many cancers. This study was aimed to explore the biological role of KCNQ1OT1 in hepatocellular carcinoma (HCC). In our study, we first observed the expression level of KCNQ1OT1 was distinctly up-regulated in HCC tissues and cell lines compared with adjacent non-cancer tissues and normal liver cell line. And clinical results indicated that higher expression of KCNQ1OT1 was correlated with poor prognosis of patients with HCC. Next, functional studies revealed that knockdown of KCNQ1OT1 induced apoptosis and repressed proliferation, migration and invasion of HCC cells. In addition, knockdown of KCNQ1OT1 suppressed xenograft tumor growth in vivo. Mechanically, we found that KCNQ1OT1 can promote the expression of IGF1R by functioning as a competing endogenous RNA of miR-148a-3p. In conclusion, our results shown the oncogenic role of KCNQ1OT1 in HCC by regulating the miR-148a-3p/IGF1R axis and may provide a new insight and a potential therapeutic target for HCC.


Assuntos
Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/patologia , MicroRNAs/genética , Receptor IGF Tipo 1/genética , Apoptose/genética , Carcinoma Hepatocelular/mortalidade , Linhagem Celular Tumoral , Proliferação de Células/genética , Progressão da Doença , Regulação Neoplásica da Expressão Gênica , Técnicas de Silenciamento de Genes , Humanos , Neoplasias Hepáticas/mortalidade , Canais de Potássio de Abertura Dependente da Tensão da Membrana/genética , Prognóstico , Interferência de RNA , Receptor IGF Tipo 1/metabolismo
11.
Onco Targets Ther ; 13: 9887-9899, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33116574

RESUMO

PURPOSE: LncRNAs play an important role in tumorigenesis and cancer progression in liver cancer. Although many lncRNAs have been reported, the role of MIR194-2HG and the underlying mechanism mediated by it are still largely unknown in HCC. This study aimed to investigate the biological role and mechanism of MIR194-2HG in liver cancer. MATERIALS AND METHODS: The expression of MIR194-2HG was determined in liver cancer tissues and cells by RT-qPCR. The overall survival rate of MIR194-2HG was analyzed by Kaplan-Meier survival analysis. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), colony formation, and Transwell assays were carried out to detect cell migration and invasion. Western blotting was used to quantify the levels of all proteins. The regulatory mechanism of the MIR194-2HG/miR-1207-5p/TCF19 axis in liver cancer was investigated by dual-luciferase activity reporter assay, Kaplan-Meier survival analysis, and Western blotting. RESULTS: MIR194-2HG was upregulated in liver cancer tissues and cell lines. Liver cancer patients with higher expression of MIR194-2HG revealed poor overall survival compared with those who had lower expression of MIR194-2HG. MIR194-2HG promoted the proliferation, migration, and invasion of HepG2 and Huh7 cells by acting as a ceRNA mechanism for the miR-1207-5p/TCF19 axis to activate the Wnt/ß-catenin signaling pathway. CONCLUSION: MIR194-2HG acts in an oncogenic role and activates the Wnt/ß-catenin signaling pathway via a miR-1207-5p/TCF19 axis-mediated mechanism, which provides a novel avenue for diagnostic or therapeutic interventions in liver cancer.

12.
Radiat Prot Dosimetry ; 192(3): 387-395, 2020 Dec 30.
Artigo em Inglês | MEDLINE | ID: mdl-33415327

RESUMO

This study aimed to investigate different methods of obtaining high-quality Computed Tomography pulmonary angiography (CTPA) images using low-dose scanning in patients with different body mass index (BMI) values. Sixty patients with suspected pulmonary embolism were grouped based on their BMI values (BMI < 25, designated N, and BMI ≥ 25, designated O) and were assigned to receive either test bolus (TB) or bolus tracking (BT) at conventional (C) or low (L) dose. The effective dose (ED) in the N-TB-L group was lower than in the group N-TB-C (0.56 ± 0.05 vs. 3.78 ± 1.16, p < 0.001), with similar image quality (4.90 ± 0.31 vs. 4.70 ± 0.47, p = 0.120). The ED in the O-TB-L group was lower than in the O-TB-C group (0.54 ± 0.03 vs. 5.14 ± 1.34, p < 0.001), but the group O-TB-C's image quality was higher (4.65 ± 0.59 vs. 3.95 ± 0.89, p = 0.006). Groups N-TB-L versus O-TB-L, groups N-TB-L versus N-BT-L and groups O-TB-C versus O-BT-C had similar EDs (all ps > 0.05), but the image quality was different (all ps < 0.05). In conclusion, the results showed that the image quality of low-dose CTPA scanning using TB was similar to that of the conventional-dose CTPA in patients with BMI < 25 but was lower in patients with BMI ≥ 25. TB was better than BT for all patients, regardless of BMI, when receiving the same ED.


Assuntos
Angiografia por Tomografia Computadorizada , Embolia Pulmonar , Angiografia , Índice de Massa Corporal , Meios de Contraste , Humanos , Embolia Pulmonar/diagnóstico por imagem , Doses de Radiação , Tomografia Computadorizada por Raios X
13.
Expert Rev Clin Pharmacol ; 13(9): 957-975, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32746653

RESUMO

INTRODUCTION: The coronavirus disease 2019 (COVID-19) pandemic has spread globally since it outbroke in December 2019. The urgent pandemic presents an unprecedented challenge to develop and identify effective medication therapy strategies to combat the COVID-19. AREAS COVERED: Here, we summarized and evaluated the current treatment drugs and regimens, and put forward the treatment recommendations, including using the potential repurposed or experimental drugs against COVID-19, e.g. chloroquine (CQ), hydroxychloroquine (HCQ), lopinavir/ritonavir (LPV/r), remdesivir (RDV), and favipiravir (FPV). We also analyzed the specific drugs and vaccines against SARS-CoV-2 ongoing development and formulated the comprehensive treatment regimens based on condition of patients, diseases and drugs as well as concomitant medications. EXPERT OPINION: No drugs and vaccines have been proven to be particularly effective against SARS-CoV-2 up to now. The recommended comprehensive medication therapy strategies have already displayed favorable effect in the fight against COVID-19. Research should be focused on the development of anti-SARS-CoV-2 drugs and vaccines based on high-quality clinical trial evidence, treatment guidelines and expert consensus.


Assuntos
Antivirais/uso terapêutico , Betacoronavirus , Infecções por Coronavirus/tratamento farmacológico , Infecções por Coronavirus/prevenção & controle , Pandemias/prevenção & controle , Pneumonia Viral/tratamento farmacológico , Pneumonia Viral/prevenção & controle , Vacinas Virais , Antivirais/administração & dosagem , Antivirais/efeitos adversos , Antivirais/farmacologia , Betacoronavirus/efeitos dos fármacos , COVID-19 , Vacinas contra COVID-19 , Infecções por Coronavirus/epidemiologia , Saúde Global , Pneumonia Viral/epidemiologia , SARS-CoV-2
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