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Water-soluble hollow nanocrystals from self-assembly of AIEEactive Pt(II)metallomesogens

Nano Research 2021年第1期14卷 245-254页

作者： Cristian Cuerva Javier Fernandez-Lodeiro mercedes cano Jose Luis Capelo-Martinez Carlos Lodeiro BIOSCOPE Research Group LAQV@REQUIMTE Chemistry DepartmentNOVA School of Science and TechnologyNOVA University Lisbon2829-516 CaparicaPortugal PROTEOMASS Scientific Society Rua dos InventoresMadam ParqueCaparica Campus2829-516 CaparicaPortugal Department of Inorganic Chemistry Complutense University of MadridCiudad Universitaria28040 MadridSpain

Luminescent hollow micro-and nanocrystals have been successfully obtained taking advantage of the self-assembly behavior and the aggregation-induced emission enhancement properties of several bispyrazolate Pt(II)metallomesogens decorated with four terminal alkyl chains.Oil-in-water droplets have been used to confine the Pt(II)compounds and drive them to be self-assembled via intermolecular Pt…Pt interactions into spherical aggregates of about 200 or 50 nm.Evaporation of the oil phase generates highly-stable aqueous dispersions of nanocrystals that emit a bright orange light as a result of the existence of^(3)MMLCT excited states.Different methods and conditions have been tested for studying the effect of several parameters such as the temperature and the stirring speed in the final particle size and in the polydispersity index.Moreover,the micro-and nanocrystals are able to entrap hydrophobic drugs between the alkyl chains of the compounds,forming stable dispersions of drug-loaded capsules in water.The droplet method is applied in the area of metallomesogens for the first time to synthesize self-assembled Pt(II)nanocapsules,which opens a new field of study that could allow the use of these liquid crystal materials in biomedical applications.

关键词： R(II)metallomesogens self-assembly luminescent nanomaterials droplets nanocapsules

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Abiotic and biotic drivers of struvite solubilization in contrasting soils

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Pedosphere 2023年第6期33卷 828-837页

作者： Antonio RUIZ-NAVARRO Manuel DELGADO-BAQUERIZO Concha cano-DíAZ Carlos GARCíA Felipe BASTIDA Centro de Edafologia y Biologia Aplicada del Segura Consejo Superior de Investigaciones Cientificas(CEBAS-CSIC)Department of Soil and Water ConservationEspinardoMurcia E-30100Spain ICL Specialty Fertilizers Iberia TotanaMurcia E-30850Spain Laboratorio de Biodiversidad y Funcionamiento Ecosistemico Instituto de Recursos Naturales y Agrobiologia de Sevilla(IRNAS)CSICAv.Reina Mercedes 10Sevilla E-41012Spain IRNAS-CSIC Unidad Asociada Universidad Pablo de OlavideUniversidad Pablo de Olavide(UPO)Sevilla 41013Spain Centre for Research and Development in Agrifood Systems and Sustainability(CISAS) Instituto Politecnico de Viana do Castelo(IPVC)Rua Escola Industrial e Comercial Nun'Alvares 34Viana do Castelo 4900-347Portugal

Phosphorus(P) limitation in the coming decades calls for the utilization of alternative fertilizers in agriculture. Struvite is a promising P source, but its potential role as a fertilizer is dependent on different physical, chemical, and biological properties, which are very heterogeneous in soil, complicating the prediction of the best soil conditions for its application. Here, we evaluated the solubility of struvite in soil, its redistribution into P fractions, and its potential abiotic and biotic drivers in 62 globally distributed soils with contrasting properties through an incubation assay. We found that after 40 d, about 35% of struvite P was redistributed into soil fractions more accessible to plants and microbes. Phosphorus redistribution from struvite was driven by a complex suite of soil physical, chemical, and microbial properties as well as environmental factors that varied across soils. Soil texture played a critical role in determining the redistribution of P in struvite-amended soils in soluble(H2O extraction), labile(NaHCO3 extraction), and moderately labile(NaOH extraction) fractions.In addition, the soil solution cation concentration was one of the most important drivers of available struvite-derived P fractions. The great importance of texture and cations in determining struvite-derived P fractions in soil was contrasted with the relatively minor role of pH. At the microbial level, the number of bacterial operational taxonomic units(OTUs) from the unfertilized soils that correlated with struvite-derived P fractions was higher than that of fungi. The number of OTUs that correlated with the struvite-derived soluble P fraction was dominated by fungi, whereas the number of OTUs that correlated with the struvite-derived labile P fraction was dominated by bacteria. Overall, this study provided a predictive framework for the potential use of struvite as a P fertilizer in contrasting soils.

关键词： bacteria fungi environmental factor operational taxonomic unit phosphorus fertilizer phosphorus fraction phosphorus solubilization soil fertility soil property

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Higher cardiovascular risk scores and liver fibrosis risk estimated by biomarkers in patients with metabolic-dysfunction-associated fatty liver disease

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World Journal of Hepatology 2022年第8期14卷 1633-1642页

作者： Giovanni Alejandro Salgado Alvarez Samanta Mayanin Pinto Galvez Uriel Garcia Mora Ana Delfina cano Contreras Cristina Durán Rosas Bryan Adrián Priego-Parra Arturo Triana Romero mercedes Amieva Balmori Federico Roesch Dietlen Sophia Eugenia Martinez Vazquez Ines Osvely Mendez Guerrero Luis Alberto Chi-Cervera Raúl Bernal Reyes Leonardo Alberto Martinez Roriguez Maria Eugenia Icaza Chavez Jose Maria Remes Troche Instituto de Investigaciones Médico-biologicas Universidad VeracruzanaVeracruz 91700VeracruzMexico Department of Gastroenterología Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMéxico 14080MéxicoMexico Clínica de Especialidades Gastrointestinales y Hepáticas Hospital Star MedicaMerida 97133YucatanMexico Department of Gastroenterologia Sociedad Española de BeneficenciaPachuca 42000HidalgoMexico Department of Gastroenterologia Clínica de Rehabilitación Metabólica Digestiva y HepáticaMexico 14080MexicoMexico Department of Gastroenterologia Hospital Star Médica de MéridaMerida 97133YucatanMexico

BACKGROUND The definition of metabolic-dysfunction-associated fatty liver disease(MAFLD)allows identification of metabolically complicated patients.Fibrosis risk scores are related to cardiovascular risk(CVR)scores and could be useful for the identification of patients at risk of systemic complications.AIM To evaluate the relationship between MAFLD and CVR using the Framingham risk score in a group of Mexican patients.METHODS Cross-sectional,observational and descriptive study carried out in a cohort of 585 volunteers in the state of Veracruz with MAFLD criteria.The risk of liver fibrosis was calculated with aspartate aminotransferase-to-platelet ratio index,nonalcoholic fatty liver disease score and fibrosis-4,as well as with transient hepatic elastography with Fibroscan~?.The CVR was determined by the Framingham system.RESULTS One hundred and twenty-five participants(21.4%)with MAFLD criteria were evaluated,average age 54.4 years,63.2%were women,body mass index 32.3 kg/m~2.The Framingham CVR was high in 43 patients(33.9%).Transient elastography was performed in 55.2%of volunteers;39.1%with high CVR and predominance in advanced fibrosis(F3–F4).The logistic regression analysis showed that liver fibrosis,diabetes and hypertension independently increased CVR.CONCLUSION One of every three patients with MAFLD had a high CVR,and in those with high fibrosis risk,the CVR risk was even greater.

关键词： Fatty liver Cardiovascular risk Hepatic steatosis Fibrosis Liver disease

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CCL2-2518 A/G and CCR2 190 A/G do not influence the outcome of hepatitis C virus infection in the Spanish population

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World Journal of Gastroenterology 2007年第15期13卷 2187-2192页

作者： MA Montes-cano JR García-Lozano J Aguilar-Reina M Romero-Gómez N Barroso A Nú(n|~)ez-Roldán MF González-Escribano Servicio de Inmunologia Hospital Universitario Virgen del Rocío Spain Servicio de Digestivo Hospital Universitario Virgen del Rocío Spain Sección Hepatología. Hospital Universitario de Valme. Servicio Andaluz de Salud Seville Spain

瞄准：估计在这 chemokine 和它的受体(CCR2 ) 之间的 CCL2 或相互作用是否与长期的丙肝的结果并且与对抗病毒的治疗的回答被联系。方法：有长期的丙肝和 193 非感染的匹配的控制的 284 个病人在这研究被包括。病人们作为 F0-F2 根据他... 详细信息

瞄准：估计在这 chemokine 和它的受体(CCR2 ) 之间的 CCL2 或相互作用是否与长期的丙肝的结果并且与对抗病毒的治疗的回答被联系。方法：有长期的丙肝和 193 非感染的匹配的控制的 284 个病人在这研究被包括。病人们作为 F0-F2 根据他们肝的纤维变性的 Scheuer 分数被分类( n = 202 )或 F3-F4 ( n = 82 )并且根据他们对反肝炎 C 的反应支撑了反应的病毒( HCV )治疗( SR ， n = 101 )或非支撑的反应( NSR ， n = 98 )。-2518 (A/G ) 的 Genotyping CCL2 用 PCR-RFLP 被执行， genotyping 190 (A/G ) 用 PCR 手臂的 CCR2 rs3138042 (G/A ) 的系统，和 genotyping CCR2 使用 Taqman 探针。结果： Univariate 分析识别了趋于影响纤维变性的 4 个参数(感染持续时间时间，病毒的遗传型，性和著名计算机生产厂商层次)和 7 个参数( CCL2G ， CCL2ACCR2A ，病毒血层次，纤维变性舞台，病毒的遗传型，感染持续时间时间和著名计算机生产厂商层次)显著地影响了或趋于影响反应到治疗。Multivariate 分析作为独立地影响了纤维变性舞台和病毒的遗传型的参数识别了性和著名计算机生产厂商层次，感染持续时间时间是独立地影响了反应到处理的二个参数。结论：我们变化在基因对 CCL2/CCR2 学习了的结果 indicate 不在西班牙的人口为 HCV 感染在到处理的结果和反应起一个主要作用。

关键词：西班牙人群丙型肝炎病毒感染预后 CCL2 CCR2 多态性

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