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Sodium-glucose cotransporter-2 inhibitors protect tissues via cellular and mitochondrial pathways:Experimental and clinical evidence

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World Journal of Experimental Medicine 2024年第2期14卷 46-52页

作者： Raúl Lelio Sanz Sebastián garcía Menéndez Felipe Inserra Leon Ferder Walter Manucha Department of Pathology Facultad de Ciencias MédicasUniversidad Nacional de CuyoMendoza 5500Argentina Department of Pharmacology Instituto de Medicina y Biología Experimental de CuyoCentro Científico TecnológicoMendoza 5500Argentina Department of Nephrology Universidad de MaimónidesCiudad Autónoma de Buenos Aires C1405Argentina Department of Cardiology Universidad de MaimónidesCiudad Autónoma de Buenos Aires C1405Argentina

Mitochondrial dysfunction is a key driver of cardiovascular disease(CVD)in metabolic syndrome and diabetes.This dysfunction promotes the production of reactive oxygen species(ROS),which cause oxidative stress and inflammation.Angiotensin II,the main mediator of the renin-angiotensin-aldosterone system,also contributes to CVD by promoting ROS production.Reduced activity of sirtuins(SIRTs),a family of proteins that regulate cellular metabolism,also worsens oxidative stress.Reduction of energy production by mitochondria is a common feature of all metabolic disorders.High SIRT levels and 5’adenosine monophosphate-activated protein kinase signaling stimulate hypoxia-inducible factor 1 beta,which promotes ketosis.Ketosis,in turn,increases autophagy and mitophagy,processes that clear cells of debris and protect against damage.Sodiumglucose cotransporter-2 inhibitors(SGLT2i),a class of drugs used to treat type 2 diabetes,have a beneficial effect on these mechanisms.Randomized clinical trials have shown that SGLT2i improves cardiac function and reduces the rate of cardiovascular and renal events.SGLT2i also increase mitochondrial efficiency,reduce oxidative stress and inflammation,and strengthen tissues.These findings suggest that SGLT2i hold great potential for the treatment of CVD.Furthermore,they are proposed as anti-aging drugs;however,rigorous research is needed to validate these preliminary findings.

关键词： Sodium-glucose cotransporter-2 inhibitors Cardiovascular diseases Sirtuins Oxidative stress Inflammation Mitochondrial dysfunction

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《曼努埃尔·玛丽亚·庞塞小提琴协奏曲》解读分析

《曼努埃尔·玛丽亚·庞塞小提琴协奏曲》解读分析

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作者： Sebastián Alejandro garcía Tovar 成都大学

学位级别：硕士

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Assessing the impact of concurrent high-fructose and highsaturated fat diets on pediatric metabolic syndrome:A review

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World Journal of Clinical Pediatrics 2024年第2期13卷 62-79页

作者： Manuel Alejandro Vargas-Vargas Marcela González-Montoya Olin Torres-Isidro Claudia Isabel garcía-Berumen Omar Ortiz-Avila Elizabeth Calderón-Cortés Christian Cortés-Rojo Instituto de Investigaciones Químico–Biológicas Universidad Michoacana de San Nicolás de HidalgoMorelia 58030MichoacánMexico Facultad de Enfermería Universidad Michoacana de San Nicolás de HidalgoMorelia 58020MichoacánMexico

High-saturated fat(HF)or high-fructose(HFr)consumption in children predispose them to metabolic syndrome(MetS).In rodent models of MetS,diets containing individually HF or HFr lead to a variable degree of MetS.Nevertheless,simultaneous intake of HF plus HFr have synergistic effects,worsening MetS outcomes.In children,the effects of HF or HFr intake usually have been addressed individually.Therefore,we have reviewed the outcomes of HF or HFr diets in children,and we compare them with the effects reported in rodents.In humans,HFr intake causes increased lipogenesis,hypertriglyceridemia,obesity and insulin resistance.On the other hand,HF diets promote low grade-inflammation,obesity,insulin resistance.Despite the deleterious effects of simultaneous HF plus HFr intake on MetS development in rodents,there is little information about the combined effects of HF plus HFr intake in children.The aim of this review is to warn about this issue,as individually addressing the effects produced by HF or HFr may underestimate the severity of the outcomes of Western diet intake in the pediatric population.We consider that this is an alarming issue that needs to be assessed,as the simultaneous intake of HF plus HFr is common on fast food menus.

关键词： Fructose Saturated fat Metabolic syndrome Insulin resistance Type 2 diabetes Ultra processed foods Children Obesity Dyslipidemia Non-alcoholic fatty liver disease

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Organizational Flexibility in the Literature From 2021 to 2024

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Journalism and Mass Communication 2024年第1期14卷 1-10页

作者： Cruz garcía Lirios Wilfrido Isidro Aldana Balderas Gabriel Pérez Crisanto Universidad Autónoma de la Ciudad de México Mexico CityMexico Universidad Autónoma del Estado de México TolucaMexico Universidad Autónoma Metropolitana Mexico CityMexico

The relationship between climate and labor flexibility has been distinguished as an antecedent of performance.In this sense,the objective of this work was to explore the factorial structure of the organizational binomial.A cross-sectional,psychometric,and correlational study was carried out with a sample of 100 employees from organizations in central Mexico.Respondents were selected based on their affiliation with the local chamber of commerce.The results show the prevalence of six factors related to the leadership climate,compensation,structure,logistics,contingencies,and risks.The total explained variance reached 71%,although the correlation analysis and the factorial structure indicate the inclusion of another factor that the literature identifies as entrepreneurial and innovative flexibility.

关键词： climate COVID-19 exploratory model factorial model flexibility

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Complications Associated with Autologous Fat Transfer: Case Report and Literature Review

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Modern Plastic Surgery 2024年第1期14卷 1-8页

作者： Bryan Armando Morales Eslava Carlos Emiliano garcía Cordova Antoine Arturo Lagunes Gasca Department of Surgery Hospital Regional Petróleos Mexicanos Villahermosa Tabasco Mexico Department of Surgery Hospital Central Sur Petróleos Mexicanos Mexico City Mexico

Undoubtedly, since its appearance, the interest and use of autologous fat transfer (AFT) as a breast reconstruction technique have been increasing, becoming one of the main surgical alternatives for aesthetic breast augmentation. This increase in its popularity has led to the development of new technologies to increase its efficacy and safety, however, it has inherently implied the inadequate use of this procedure, mainly when performed by unqualified medical personnel. We present the case of a patient with complications following a breast AFT for aesthetic purposes, performed by a general practitioner without a specialty in plastic and reconstructive surgery.

关键词： Breast Breast Reconstruction Breast Surgery Autologous Fat Transfer Intramammary Abscess

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Structured-illumination reflectance imaging for the evaluation of microorganism contamination in pork: Effects of spectral and imaging features on its prediction performance

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Food Science and Human Wellness 2024年

作者： Binjing Zhou Xiaohua Liu Yan Ge Kang Tu Jing Peng Juan Francisco garcía-Martín Jie Wu Weijie Lan Leiqing Pan The Academy of Science Nanjing Agricultural University College of Engineering Nanjing Agricultural University College of Food Science and Technology Nanjing Agricultural University School of Food and Biological Engineering Bengbu University Departamento de Ingeniería Química Facultad de Química Universidad de Sevilla

Structured-illumination reflectance imaging provides a new means for food quality detection. This original work investigated the capability of Structured-illumination reflectance imaging technique coupled with multivariate chemometrics to evaluate the microbial contamination in pork inoculated with Pseudomonas fluorescens and Brochothrix thermosphacta during storage at different temperatures. The prediction performances based on different spectrum and the textural features of direct component and amplitude component images demodulated from the SIRI pattern images， as well as their data fusion were comprehensively compared. Based on the full wavelength spectrum (420 – 700) nm of amplitude component images， the orthogonal signal correction coupled with support vector machine regression provided the best predictions of the number of Pseudomonas fluorescens and Brochothrix thermosphacta in pork， with the Rp2values of 0.870 and 0.906， respectively. Besides， the prediction models based on the amplitude component or direct component image textural features and the data fusion models using spectrum and textural features from direct component and amplitude component images cannot significantly improve their prediction accuracy. Consequently， structured-illumination reflectance imaging can be further considered as a potential technique for the rapid evaluation of microbial contaminations in pork meat.

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Development and Validation of a Method to Quantify Midazolam in a New Oral Formulation for Pediatric Use

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American Journal of Analytical Chemistry 2012年第8期3卷 552-558页

作者： Carmen Flores Pérez Juan Luis Chávez Pacheco Janett Flores Pérez Hugo Juárez Olguín Blanca Ramírez Mendiola raquel garcía álvarez José Francisco González Zamora ángel Changin Guerra Chocolates Turínò S.A. de C.V. Departamento de Anestesia y Quirófano INP Laboratorio de Farmacología Instituto Nacional de Pediatría (INP)

Aim: To develop an HPLC method to quantify midazolam in a new oral formulation for pediatric use. Methods: The stability of the new formulation was evaluated at different storage conditions and a preliminary assay of relative bioavailability was carried out in healthy volunteers. Results: The method of quantification was linear in the range of 5 to 60 μg·mL-1. The midazolam amount in the formulation remained stable for 90 days at 4 and 40℃ (in the dark) while at 25℃ was stable only for 14 days (exposed to light). Discussion: The relative bioavailability assay suggests that our preparation of midazolam in white chocolate reaches plasma levels similar to those induced by the apple juice formulation. Conclusion: This new white chocolate formulation masks the unpleasing flavour and has a more attractive presentation to the paediatric patient, which may be useful for children sedation and to ease its management by health carers.

关键词： Children Liquid Chromatography Magistral Formulation Midazolam

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Dendritic spine degeneration:a primary mechanism in the aging process

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Neural Regeneration Research 2025年第6期 1696-1698页

作者： Gonzalo Flores Leonardo Aguilar-Hernández Fernado garcía-Dolores Humberto Nicolini Andrea Judith Vázquez-Hernández Hiram Tendilla-Beltrán Instituto de Fisiología Benemérita Universidad Autónoma de Puebla (BUAP) Instituto de Ciencias Forenses (INCIFO) Tribunal Superior de Justicia de la Ciudad de México (TSJCDMX) Instituto Nacional de Medicina Genómica (INMEGEN)

Recent reports suggest that aging is not solely a physiological process in living beings; instead, it should be considered a pathological process or disease(Amorim et al., 2022). Consequently, this process involves a wide range of factors, spanning from genetic to environmental factors, and even includes the gut microbiome(GM)(Mayer et al., 2022). All these processes coincide at some point in the inflammatory process, oxidative stress, and apoptosis, at different degrees in various organs and systems that constitute a living organism(Mayer et al., 2022; AguilarHernández et al., 2023).

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Evaluation of the Antibacterial and Antifungal Capacity of Nanoemulsions Loaded with Synthetic Chalcone Derivatives Di-Benzyl Cinnamaldehyde and Benzyl 4-Aminochalcone

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Journal of Renewable Materials 2024年第2期12卷 285-304页

作者： Flavia Oliveira Monteiro da Silva Abreu Taysse Holanda Joice Farias do Nascimento Henety Nascimento Pinheiro Rachel Menezes Castelo Hélcio Silva dos Santos Thais Benincá Patrícia da Silva Malheiros Júlio César Sousa Prado raquel de Oliveira Fontenelle Maria Madalena de Camargo Forte Natural Polymers Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Polymeric Materials Laboratory PPGE3MFederal University of Rio Grande do SulPorto Alegre91501-970Brazil Natural Product Chemistry Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Food Hygiene and Microbiology Laboratory PPGCTAFederal University of Rio Grande do SulPorto Alegre91501-970Brazil Microbiology Laboratory Medicine SchoolFederal University of CearáSobral62010-560Brazil

With the increase in antimicrobial resistance,it has become necessary to explore alternative approaches for combating and preventing diseases.DB-cinnamaldehyde(CNM)and Benzyl4-amino(B4AM)are bioactive compounds derived from chalcones but with restricted solubility in aqueous media.Nanoemulsions can enhance the solubility of compounds and can be a promising alternative in the development of novel antimicrobials,with reduced side effects and prolonged release.The objective of this study was to evaluate the stability of oil-in-water nanoemulsions loaded with two distinct types of chalcones at two different dosages,to propose a stable formulation with antimicrobial properties.Results showed that nanoemulsions presented high encapsulation efficiency,low polydispersity index(PDI)and particle size below 200 nm,indicating that emulsification was a suitable method for nanoemulsion preparation.Nanoemulsions with higher dosages exhibited significant antimicrobial effects when compared to free chalcones and positive controls.Notably,B4AM nanoemulsions at higher dosages showed expressive activity against Salmonella minnesota,with a 420%greater inhibitory response compared to the free form and showing equivalence to the positive control.CNM nanoemulsions showed excellent inhibitory activity at the highest dosage,equivalent to the positive control against S.minnesota and Staphylococcus aureus.The greater number of conjugated bonds in CNM increased the antimicrobial activity in comparison with B4AM,and the formation of nanometric domains enhanced the bioavailability,being a promising alternative for antimicrobial applications.

关键词： Polysaccharide nanoemulsions S.aureus S.minnesota chalcones alginate

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Sound waves and solutions:Point-of-care ultrasonography for acute kidney injury in cirrhosis

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World Journal of Critical Care Medicine 2024年第2期13卷 83-92页

作者： David Aguirre-Villarreal Mario Andrés de Jesús Leal-Villarreal Ignacio garcía-Juárez Eduardo R Argaiz Abhilash Koratala Departamento de Gastroenterología Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMexico City 14080Mexico Cardiología Instituto Nacional de Cardiología Ignacio ChávezMexico City 14080Mexico Unidad de Hepatología y Trasplante Departamento de GastroenterologíaInstituto Nacional de Ciencias Medicas y Nutricion Salvador ZubiranMexico City 14080Mexico Departamento de Nefrología y Metabolismo Mineral Instituto Nacional de Ciencias Médicas y Nutrición Salvador ZubiránMexico City 14080Mexico Tecnológico de Monterrey Escuela de Medicina y Ciencias de la SaludMexico City 64710Mexico Department of Nephrology Medical College of WisconsinMilwaukeeWI 53226United States

This article delves into the intricate challenges of acute kidney injury(AKI)in cirrhosis,a condition fraught with high morbidity and mortality.The complexities arise from distinguishing between various causes of AKI,particularly hemodynamic AKI,in cirrhotic patients,who experience hemodynamic changes due to portal hypertension.The term"hepatocardiorenal syndrome"is introduced to encapsulate the intricate interplay among the liver,heart,and kidneys.The narrative emphasizes the often-overlooked aspect of cardiac function in AKI assessments in cirrhosis,unveiling the prevalence of cirrhotic cardiomyopathy marked by impaired diastolic function.The conventional empiric approach involving volume expansion and vasopressors for hepatorenal syndrome is critically analyzed,highlighting potential risks and variable patient responses.We advocate for a nuanced algorithm for AKI evaluation in cirrhosis,prominently featuring point-of-care ultrasonography(POCUS).POCUS applications encompass assessing fluid tolerance,detecting venous congestion,and evaluating cardiac function.

关键词： Point-of-care ultrasonography Bedside ultrasound Cirrhosis Congestion Acute kidney injury Congestive nephropathy

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