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1.
Am J Clin Nutr ; 120(1): 129-144, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38960570

RESUMEN

BACKGROUND: Personalized nutrition (PN) has been proposed as a strategy to increase the effectiveness of dietary recommendations and ultimately improve health status. OBJECTIVES: We aimed to assess whether including omics-based PN in an e-commerce tool improves dietary behavior and metabolic profile in general population. METHODS: A 21-wk parallel, single-blinded, randomized intervention involved 193 adults assigned to a control group following Mediterranean diet recommendations (n = 57, completers = 36), PN (n = 70, completers = 45), or personalized plan (PP, n = 68, completers = 53) integrating a behavioral change program with PN recommendations. The intervention used metabolomics, proteomics, and genetic data to assist participants in creating personalized shopping lists in a simulated e-commerce retailer portal. The primary outcome was the Mediterranean diet adherence screener (MEDAS) score; secondary outcomes included biometric and metabolic markers and dietary habits. RESULTS: Volunteers were categorized with a scoring system based on biomarkers of lipid, carbohydrate metabolism, inflammation, oxidative stress, and microbiota, and dietary recommendations delivered accordingly in the PN and PP groups. The intervention significantly increased MEDAS scores in all volunteers (control-3 points; 95% confidence interval [CI]: 2.2, 3.8; PN-2.7 points; 95% CI: 2.0, 3.3; and PP-2.8 points; 95% CI: 2.1, 3.4; q < 0.001). No significant differences were observed in dietary habits or health parameters between PN and control groups after adjustment for multiple comparisons. Nevertheless, personalized recommendations significantly (false discovery rate < 0.05) and selectively enhanced the scores calculated with biomarkers of carbohydrate metabolism (ß: -0.37; 95% CI: -0.56, -0.18), oxidative stress (ß: -0.37; 95% CI: -0.60, -0.15), microbiota (ß: -0.38; 95% CI: -0.63, -0.15), and inflammation (ß: -0.78; 95% CI: -1.24, -0.31) compared with control diet. CONCLUSIONS: Integration of personalized strategies within an e-commerce-like tool did not enhance adherence to Mediterranean diet or improved health markers compared with general recommendations. The metabotyping approach showed promising results and more research is guaranteed to further promote its application in PN. This trial was registered at clinicaltrials.gov as NCT04641559 (https://clinicaltrials.gov/study/NCT04641559?cond=NCT04641559&rank=1).


Asunto(s)
Dieta Mediterránea , Medicina de Precisión , Humanos , Femenino , Masculino , Persona de Mediana Edad , Adulto , Método Simple Ciego , Metabolómica , Estado Nutricional , Biomarcadores/sangre , Conducta Alimentaria
2.
Mol Nutr Food Res ; : e2400020, 2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38934352

RESUMEN

Sex hormone-binding globulin (SHBG) is a homodimeric glycoprotein produced by the human liver and secreted into the systemic circulation where it binds with high affinity sex steroids regulating their availability in blood and accessibility to target tissues. Plasma SHBG levels are altered in metabolic disorders such as obesity, anorexia, and insulin resistance. Several reports have shown that diets in terms of total calories or fat, fiber, or protein content can alter plasma SHBG levels. However, there are many components in a diet that can affect SHBG gene expression in the liver. In order to unravel the molecular mechanisms by which diets regulate SHBG production, it would be necessary to analyze single diet components and/or nutritional factors. This review summarizes the recent advances in identifying different nutritional factors regulating SHBG production and the related molecular mechanism, as well as the clinical implications.

3.
PLoS One ; 19(5): e0304054, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38776338

RESUMEN

This study explores the Hydrothermal Carbonization (HTC) treatment of lignocellulosic biomass blends, delving into the influence of several key parameters: temperature, additive nature and dosage, residence time, and biomass composition. Rapeseeds, Pinus radiata sawdust, oat husks, and pressed olive served as the studied biomasses. One hundred twenty-eight experiments were conducted to assess the effects on mass yield (MY), energy yield (EY), higher heating value (HHV), and final ash content (ASH) by a Factorial Experimental Design. The derived model equations demonstrated a robust fit to the experimental data, averaging an R2 exceeding 0.94, affirming their predictive accuracy. The observed energy yield ranged between 65% and 80%, notably with sawdust and olive blends securing EY levels surpassing 70%, while rapeseed blends exhibited the highest HHV at 25 MJ/kg. Temperature emerged as the most influential factor, resulting in an 11% decrease in MY and a substantial 2.20 MJ/kg increase in HHV. Contrastingly, blend composition and additive presence significantly impacted ASH and EY, with all blends exhibiting increased ASH in the presence of additives. Higher initial hemicellulose and aqueous extractive content in raw biomass correlated proportionally with heightened HHV.


Asunto(s)
Biocombustibles , Biomasa , Biocombustibles/análisis , Lignina/química , Temperatura , Pinus/química , Olea/química , Brassica rapa/química , Calor
4.
Food Funct ; 15(11): 5825-5841, 2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38751340

RESUMEN

The study determines the sustained and acute effects of a red-fleshed apple (RFA), rich in anthocyanins (ACNs), a white-fleshed apple (WFA) without ACNs, and an infusion from Aronia melanocarpa (AI) with an equivalent content of ACNs as RFA, on different cardiometabolic risk biomarkers in hypercholesterolemic subjects. A randomized, parallel study was performed for 6 weeks and two dose-response studies were performed at the baseline and after intervention. At 6 weeks, RFA consumption improved ischemic reactive hyperemia and decreased C-reactive protein and interleukine-6 compared to WFA consumption. Moreover, at 6 weeks, AI decreased P-selectin compared to WFA and improved the lipid profile. Three products reduced C1q, C4 and Factor B, and RFA and AI reduced C3. Although both RFA and AI have a similar ACN content, RFA, by a matrix effect, induced more improvements in inflammation, whereas AI improved the lipid profile. Anti-inflammatory protein modulation by proteomic reduction of the complement system and immunoglobulins were verified after WFA, AI and RFA consumption.


Asunto(s)
Antocianinas , Hipercolesterolemia , Inflamación , Malus , Humanos , Antocianinas/farmacología , Antocianinas/administración & dosificación , Hipercolesterolemia/tratamiento farmacológico , Malus/química , Masculino , Femenino , Persona de Mediana Edad , Adulto , Frutas/química , Photinia/química , Proteína C-Reactiva , Sistema Inmunológico/efectos de los fármacos , Anciano , Extractos Vegetales/farmacología
5.
Rom J Ophthalmol ; 68(1): 53-56, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38617729

RESUMEN

Objective: To describe acute calcareous corneal degeneration as a complication of chronic graft-versus-host disease. Materials and methods: Clinical case and review of the literature. Results: We presented a case of bilateral acute calcareous corneal degeneration in a patient with chronic graft-versus-host disease. Conclusions: Chronic graft-versus-host disease (cGVHD) occurs in 50-70% of bone marrow transplantation patients, the most frequent ocular complication being keratoconjunctivitis sicca (KCS). Calcareous corneal degeneration is a type of calcium deposition that can be secondary to chronic ocular inflammation or dry eye, but there are few cases reported of acute calcareous corneal degeneration and recurrent perforation in cGVHD. Abbreviations: GVHD = Chronic graft-versus-host disease, aGVHD = Acute graft-versus-host disease, cGVHD = Chronic graft-versus-host disease, KCS = Keratoconjunctivitis sicca, PKP = Penetrating keratoplasty, AMT = Amniotic membrane transplantation, PRGF = Plasma rich in growth factors, OD = Right eye, OS = Left eye.


Asunto(s)
Síndrome de Bronquiolitis Obliterante , Distrofias Hereditarias de la Córnea , Queratoconjuntivitis Seca , Humanos , Córnea , Queratoplastia Penetrante , Inflamación
6.
Sci Total Environ ; 927: 172161, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38599402

RESUMEN

The $882 billion textile trade in 2021 poses environmental concerns, highlighting the importance of encouraging a circular economy to attain sustainable textiles. Therefore, policies must prioritize textile recycling, particularly in developing countries, and sharing information throughout the value chain. This research aims to explore the potential environmental benefits of two industrial recycling processes for textile residues versus the traditional waste management and production process through a life cycle assessment applying the ReCiPe method at midpoint and endpoint levels focusing on generating significant data availability and broader assessment than existing literature to support decision making related to recycling systems for textile residues. Results related to the textile residues recycling process to obtain stripes (R1) and replace sawdust, to fill pushing balls, show that it would produce environmental benefits regardless of location in several midpoint categories. Furthermore, regarding the endpoint results, the DALY savings are mainly due to avoiding landfill, while the savings in ecosystem impacts are generated by avoiding landfill and sawdust production. Regarding the recycling process to obtain recycled yarn and fill (R2) net savings in global warming potential are generated if landfill avoidance is considered. Nevertheless, endpoint results show that DALYs of all the avoided processes correspond to 1.5 times the impacts of all the R2 recycling processes, mainly due to avoiding virgin yarn production. Therefore, both recycling processes are recommended. However, some strategies are required to generate greater benefits, such as applying the R2 recycling process as the first option for stretchable textile waste, and after being used, going through the R1 recycling process. In addition, the strategic placement of the R1 recycling facility should be distant from areas of sawdust production. A sensitivity analysis was carried out due to the variability of virgin products to replace in the market.

7.
J Am Pharm Assoc (2003) ; : 102056, 2024 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-38401839

RESUMEN

BACKGROUND: Non-medical use of psychoactive medication is a public health problem. Studies in other contexts indicate that individual sociodemographic characteristics are associated with non-medical use, but these associations have not been assessed in the Mexican context. OBJECTIVES: To estimate the prevalence non-medical and medical use of psychoactive medication among Mexican adolescents and adults' medication users and to estimate the associations between sociodemographic characteristics and non-medical use of psychoactive medication, using data from a nationally representative sample. METHODS: Secondary analysis of data collected from the National Survey of Drug, Alcohol, and Tobacco Consumption (ENCODAT) 2016 to 2017. The analytical sample included people aged 12 to 65 years. The sample was stratified into two age categories: adolescents (12-17 years) and adults (18-65 years). Sub-analyses were performed to describe prevalence of use and non-medical use of psychoactive medication at the state-level. Descriptive statistics and multinomial logistic regression models were used to estimate associations between sociodemographic characteristics and medical, non-medical, and non-use of psychoactive medication in adolescents and adults. RESULTS: Among Mexican medication users in 2016, the national prevalence of non-medical use of psychoactive drugs was 19.6%; 22.2% among adolescents and 19.4% among adults. States adjacent to the US-Mexico border reported the highest levels of non-medical use of psychoactive medication. Illicit drug consumption was associated with non-medical use. Sociodemographic characteristics associated with non-medical use varied between adolescents and adults. CONCLUSIONS: There is a high proportion of non-medical use of psychoactive drugs among Mexican medication users, especially among young people. Understanding factors associated with the misuse of psychoactive medications in Mexico can inform policy for prevention and treatment.

8.
Reumatol Clin (Engl Ed) ; 19(9): 500-506, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37945183

RESUMEN

INTRODUCTION: Inflammatory rheumatic diseases usually affect women of childbearing age treated with biologic drugs. However, there is a lack of literature on the efficacy and toxicity of biologic disease-modifying drugs during pregnancy. The aim of this study was to determine the presence of pregnant patients treated with bDMARDs in a real-world dataset and to examine the impact of pregnancy and lactation on the evolution of rheumatic disease in a registry of Spanish patients. METHOD: This was a multicentre prospective study with a real-world setting. Information was obtained from BIOBADASER registry. Patients included are women who got pregnant until November 2020 from 19 rheumatology units. We conducted proportions, means, and standard deviations (SD) to describe the study population and the use of treatments. T-test and Chi-square test were applied to assess differences between groups. RESULT: Ninety cases of pregnancy were registered (n=68 full-term pregnancies; n=22 spontaneous miscarriages). Most of the cases discontinued bDMARDs during pregnancy (78.9%) but 13 cases continued treatment during pregnancy, mainly using certolizumab pegol. These cases were obtaining better management of rheumatic disease, although the differences were not statistically significant [DAS28-CRP, 2.9 (SD: 1.6) vs. 2.0 (1.2), p=.255; DAS28-ESR, 2.2 (1.0) vs. 1.7 (.5), p=.266]. No serious adverse events were reported during pregnancy and lactation. CONCLUSION: Being pregnant is still an uncommon condition in patients with rheumatic diseases and using bDMARDs. Our results show that rheumatic disease tended to progress better during pregnancy in patients who continued to take bDMARDs.


Asunto(s)
Productos Biológicos , Enfermedades Reumáticas , Reumatología , Embarazo , Humanos , Femenino , Masculino , Estudios Prospectivos , Enfermedades Reumáticas/tratamiento farmacológico , Sistema de Registros
9.
Reumatol. clín. (Barc.) ; 19(9): 500-506, Nov. 2023. tab
Artículo en Inglés | IBECS | ID: ibc-226605

RESUMEN

Introduction: Inflammatory rheumatic diseases usually affect women of childbearing age treated with biologic drugs. However, there is a lack of literature on the efficacy and toxicity of biologic disease-modifying drugs during pregnancy. The aim of this study was to determine the presence of pregnant patients treated with bDMARDs in a real-world dataset and to examine the impact of pregnancy and lactation on the evolution of rheumatic disease in a registry of Spanish patients.Method: This was a multicentre prospective study with a real-world setting. Information was obtained from BIOBADASER registry. Patients included are women who got pregnant until November 2020 from 19 rheumatology units. We conducted proportions, means, and standard deviations (SD) to describe the study population and the use of treatments. T-test and Chi-square test were applied to assess differences between groups.Result: Ninety cases of pregnancy were registered (n=68 full-term pregnancies; n=22 spontaneous miscarriages). Most of the cases discontinued bDMARDs during pregnancy (78.9%) but 13 cases continued treatment during pregnancy, mainly using certolizumab pegol. These cases were obtaining better management of rheumatic disease, although the differences were not statistically significant [DAS28-CRP, 2.9 (SD: 1.6) vs. 2.0 (1.2), p=.255; DAS28-ESR, 2.2 (1.0) vs. 1.7 (.5), p=.266]. No serious adverse events were reported during pregnancy and lactation.Conclusion: Being pregnant is still an uncommon condition in patients with rheumatic diseases and using bDMARDs. Our results show that rheumatic disease tended to progress better during pregnancy in patients who continued to take bDMARDs.(AU)


Introducción: Las enfermedades reumáticas inflamatorias afectan normalmente a mujeres en edad fértil tratadas con fármacos biológicos. Sin embargo, escasea la literatura sobre la eficacia y la toxicidad de los fármacos modificadores de la enfermedad (FAME) biológicos durante el embarazo. El objetivo de este estudio fue determinar la presencia de pacientes embarazadas tratadas con FAME biológicos en un conjunto de datos del mundo real y examinar el impacto del embarazo y la lactancia en la evolución de la enfermedad reumática en un registro de pacientes españoles.Método: Estudio prospectivo multicéntrico en un entorno del mundo real. La información se obtuvo del registro BIOBADASER. Los pacientes fueron mujeres embarazadas hasta el mes de noviembre del 2020, de 19 unidades de Rreumatología. Obtuvimos proporciones, medias y desviaciones estándar (DE) para describir la población de estudio y el uso de tratamientos. Se realizaron las pruebas t y χ2 para evaluar las diferencias entre grupos.Resultado:Se registraron 90 casos de embarazo (n=68 embarazos a término; n=22 abortos espontáneos). La mayoría de los casos suspendieron el tratamiento con FAME biológicos durante el embarazo (78,9%), pero 13 casos prosiguieron el tratamiento durante el embarazo, utilizando principalmente certolizumab pegol. Dichos casos obtuvieron un mejor manejo de la enfermedad reumática, aunque las diferencias no fueron estadísticamente significativas (DAS28-CRP, 2,9 [DE 1,6] vs. 2 [1,2], p=0,255; DAS28-ESR, 2,2 [1] vs. 1,7 [0,5], p=0,266). No se reportaron episodios adversos graves durante el embarazo y la lactancia.Conclusión: La situación de embarazo sigue siendo infrecuente en las pacientes con enfermedades reumáticas que utilizan FAME biológicos. Nuestros resultados reflejan que la enfermedad reumática tendió a progresar mejor durante el embarazo en las mujeres tratadas con FAME biológicos.(AU)


Asunto(s)
Humanos , Femenino , Embarazo , Enfermedades Reumáticas/complicaciones , Complicaciones del Embarazo , Certolizumab Pegol , Antirreumáticos/toxicidad , Productos Biológicos/toxicidad , Reumatología , Enfermedades Reumáticas/tratamiento farmacológico , Estudios Prospectivos , Lactancia , Aborto , Antirreumáticos/uso terapéutico , Productos Biológicos/uso terapéutico
10.
Rom J Ophthalmol ; 67(3): 305-308, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37876503

RESUMEN

Objective: Description of melphalan's toxicity in retinoblastoma treatment. Methods: Clinical case report. Results: We presented a case of unilateral retinoblastoma with vitreous seeding at diagnosis, in which the use of intravitreal melphalan produced many adverse reactions. Conclusions: Vitreous seedings have been one of the most important challenges in retinoblastoma treatment. Intravitreal melphalan has achieved the regression of vitreous seedings in a large percentage of cases. It is a safe treatment; however, it can produce toxicity, even with the standard dose of 20-30 µg, which has been poorly documented. Exhaustive follow-up of patients is recommended for an early diagnosis of possible adverse effects. Abbreviations: OS = left eye, RI = magnetic resonance imaging, OCT = optical coherence tomography.


Asunto(s)
Neoplasias de la Retina , Retinoblastoma , Humanos , Retinoblastoma/diagnóstico , Retinoblastoma/tratamiento farmacológico , Melfalán/efectos adversos , Neoplasias de la Retina/diagnóstico , Neoplasias de la Retina/tratamiento farmacológico , Antineoplásicos Alquilantes/efectos adversos , Estudios Retrospectivos , Cuerpo Vítreo , Inyecciones Intravítreas , Siembra Neoplásica
11.
PLoS One ; 18(10): e0285691, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37796914

RESUMEN

Introducing SimpliPyTEM, a Python library and accompanying GUI that simplifies the post-acquisition evaluation of transmission electron microscopy (TEM) images, helping streamline the workflow. After an imaging session, a folder of image and/or video files, typically containing low contrast and large file size 32-bit images, can be quickly processed via SimpliPyTEM into high-quality, high-contrast.jpg images with suitably sized scale bars. The app can also generate HTML or PDF files containing the processed images for easy viewing and sharing. Additionally, SimpliPyTEM specifically focuses on in situ TEM videos, an emerging field of EM involving the study of dynamic processes whilst imaging. The package allows fast data processing into preview movies, averages, image series, or motion-corrected averages. The accompanying Python library offers many standard image processing methods, all simplified to a single command, plus a module to analyse particle morphology and population. This latter application is particularly useful for life sciences investigations. User-friendly tutorials and clear documentation are included to help guide users through the processing and analysis. We invite the EM community to contribute to and further develop this open-source package.


Asunto(s)
Aplicaciones Móviles , Programas Informáticos , Microscopía Electrónica de Transmisión , Procesamiento de Imagen Asistido por Computador/métodos
13.
PLoS One ; 18(9): e0291838, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37729330

RESUMEN

Global population growth and rising consumption levels have significantly increased resource use and energy demand, leading to higher greenhouse gas concentrations and increased waste output. As a result, alternative waste treatment methods for sustainable municipal solid waste (MSW) management are crucial. This research evaluates the efficiency of integrating hydrothermal carbonization (HTC) and gasification for an optimized MSW biomass blend. HTC was conducted for one hour at 220°C in a 5 L reactor, followed by gasification in a hybrid porous medium gasifier. The study investigated the effects of different filtration speeds on combustion temperature and hydrogen concentrations. The results showed that a filtration speed of 35 cm/s resulted in a maximum combustion temperature of 1035.7°C. The temperature remained consistent across filter speeds, while higher velocities yielded higher hydrogen concentrations. Additionally, increasing the filtration velocity raised temperatures in the hybrid bed while increasing the volumetric fraction of biomass decreased maximum temperatures. This research contributes to the understanding of merging HTC and gasification for MSW biomass blend treatment, aiming to reduce environmental impacts and costs while promoting renewable resources for long-term energy production.


Asunto(s)
Fiebre , Residuos Sólidos , Humanos , Porosidad , Biomasa , Hidrógeno
14.
Macromol Biosci ; 23(8): e2300068, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37315231

RESUMEN

A bottom-up approach to fabricating monodisperse, two-component polymersomes that possess phase-separated ("patchy") chemical topology is presented. This approach is compared with already-existing top-down preparation methods for patchy polymer vesicles, such as film rehydration. These findings demonstrate a bottom-up, solvent-switch self-assembly approach that produces a high yield of nanoparticles of the target size, morphology, and surface topology for drug delivery applications, in this case patchy polymersomes of a diameter of ≈50 nm. In addition, an image processing algorithm to automatically calculate polymersome size distributions from transmission electron microscope images based on a series of pre-processing steps, image segmentation, and round object identification is presented.


Asunto(s)
Nanopartículas , Polímeros , Sistemas de Liberación de Medicamentos , Microscopía , Solventes
15.
Medicina (Kaunas) ; 59(6)2023 Jun 11.
Artículo en Inglés | MEDLINE | ID: mdl-37374326

RESUMEN

Objective: We aimed to evaluate the efficacy of the combination of atorvastatin and N-acetyl cysteine in increasing platelet counts in patients with immune thrombocytopenia who were resistant to steroid therapy or had a relapse after treatment. Material and Methods: The patients included in this study received oral treatment of atorvastatin at a dose of 40 mg daily and N-acetyl cysteine at a dose of 400 mg every 8 h. The desired treatment duration was 12 months, but we included patients who completed at least 1 month of treatment in the analysis. The platelet counts were measured prior to the administration of the study treatment and in the first, third, sixth, and twelfth months of treatment (if available). A p value < 0.05 was considered statistically significant. Results: We included 15 patients who met our inclusion criteria. For the total treatment duration, the global response was 60% (nine patients); eight patients (53.3%) had a complete response and one patient (6.7%) had a partial response. Six patients (40%) were considered as having undergone treatment failure. Of the responder group, five patients maintained a complete response after treatment (55.5%), three patients maintained a partial response (33.3%), and one patient (11.1%) lost their response to the treatment. All of the patients in the responder group had significant increases in their platelet counts after treatment (p < 0.05). Conclusion: This study provides evidence of a possible treatment option for patients with primary immune thrombocytopenia. However, further studies are needed.


Asunto(s)
Púrpura Trombocitopénica Idiopática , Trombocitopenia , Humanos , Acetilcisteína/farmacología , Acetilcisteína/uso terapéutico , Atorvastatina/farmacología , Atorvastatina/uso terapéutico , Recuento de Plaquetas , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Trombocitopenia/tratamiento farmacológico , Resultado del Tratamiento
16.
Membranes (Basel) ; 13(3)2023 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-36984750

RESUMEN

Electrodialysis (ED) applications have expanded in recent years and new modes of operation are being investigated. Operation at overlimiting currents involves the phenomenon of electroconvection, which is associated with the generation of vortices. These vortices accelerate the process of solution mixing, making it possible to increase the transport of ions across the membranes. In this work, frequency analysis is applied to investigate the interaction between different parameters on the development of electroconvection near anion-exchange membranes, which would provide a basis for the development of ED systems with favored electroconvection. Chronopotentiometric curves are registered and Fast Fourier Transform analysis is carried out to study the amplitude of the transmembrane voltage oscillations. Diverse behaviors are detected as a function of the level of forced convection and current density. The synergistic combination of forced convection and overlimiting currents leads to an increase in the signal amplitude, which is especially noticeable at frequencies around 0.1 Hz. Fast Fourier Transform analysis allows identifying, for a given system, the conditions that lead to a transition between stable and chaotic electroconvection modes.

17.
Thromb Res ; 223: 7-23, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36689805

RESUMEN

BACKGROUND: Oxidative stress derived from severe systemic inflammation promotes conversion from high-density lipoprotein HDL to oxidized HDL (oxHDL), which interacts with vascular endothelial cells (ECs). OxHDL acquires procoagulant features playing a role in modulating coagulation, which has been linked with organ failure in ICU patients. However, whether oxHDL elicits a ECs-mediated procoagulant phenotype generating organ failure and death, and the underlying molecular mechanism is not known. Therefore, we studied whether oxHDL-treated rats and high-oxHDL ICU patients exhibit a procoagulant phenotype and its association with kidney injury and mortality and the endothelial underlying molecular mechanism. METHODS: Human ECs, oxHDL-treated rats and ICU patients were subjected to several cellular and molecular studies, coagulation analyses, kidney injury assessment and mortality determination. RESULTS: OxHDL-treated ECs showed a procoagulant protein expression reprograming characterized by increased E-/P-selectin and vWF mRNA expression through specific signaling pathways. OxHDL-treated rats exhibited a procoagulant phenotype and modified E-/P-selectin, vWF, TF and t-PA mRNA expression correlating with plasma TF, t-PA and D-dimer. Also, showed increased death events and the relative risk of death, and increased creatinine, urea, BUN/creatinine ratio, KIM-1, NGAL, ß2M, and decreased eGFR, all concordant with kidney injury, correlated with plasma TF, t-PA and D-dimer. ICU patients showed correlation between plasma oxHDL and increased creatinine, cystatin, BUN, BUN/creatinine ratio, KIM-1, NGAL, ß2M, and decreased GFR. Notably, ICU high-oxHDL patients showed decreased survival. Interestingly, altered coagulation factors TF, t-PA and D-dimer correlated with both increased oxHDL levels and kidney injury markers, indicating a connection between these factors. CONCLUSION: Increased circulating oxHDL generates an endothelial-dependent procoagulant phenotype that associates with acute kidney injury and increased risk of death.


Asunto(s)
Lesión Renal Aguda , Lipoproteínas HDL , Humanos , Ratas , Animales , Lipoproteínas HDL/metabolismo , Selectina-P/metabolismo , Células Endoteliales/metabolismo , Creatinina , Lipocalina 2 , Factor de von Willebrand/metabolismo , Fenotipo , ARN Mensajero
18.
Angew Chem Int Ed Engl ; 62(8): e202208681, 2023 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-36469792

RESUMEN

Supramolecular systems chemistry has been an area of active research to develop nanomaterials with life-like functions. Progress in systems chemistry relies on our ability to probe the nanostructure formation in solution. Often visualizing the dynamics of nanostructures which transform over time is a formidable challenge. This necessitates a paradigm shift from dry sample imaging towards solution-based techniques. We review the application of state-of-the-art techniques for real-time, in situ visualization of dynamic self-assembly processes. We present how solution-based techniques namely optical super-resolution microscopy, solution-state atomic force microscopy, liquid-phase transmission electron microscopy, molecular dynamics simulations and other emerging techniques are revolutionizing our understanding of active and adaptive nanomaterials with life-like functions. This Review provides the visualization toolbox and futuristic vision to tap the potential of dynamic nanomaterials.

19.
Nutr Rev ; 81(8): 988-1033, 2023 07 10.
Artículo en Inglés | MEDLINE | ID: mdl-36545749

RESUMEN

CONTEXT: Dietary fatty acids (FAs), primarily n-3 polyunsaturated FAs, have been associated with enrichment of the circulating bioactive lipidome and changes in the enzymatic precursor lipoprotein-associated phospholipase A2 (Lp-PLA2) mass; however, the magnitude of this effect remains unclear. OBJECTIVE: The aim of this systematic review and meta-analysis was to evaluate the effect of different dietary FAs on the bioactive lipid profile of healthy participants and those with cardiovascular disease (CVD) and CVD risk factors. DATA SOURCES: PubMed, SCOPUS and the Cochrane Library databases were searched for relevant articles published between October 2010 and May 2022. DATA EXTRACTION: Data were screened for relevance and then retrieved in full and evaluated for eligibility by 2 reviewers independently. DATA ANALYSIS: The net difference in the bioactive lipid mean values between the endpoint and the baseline, and the corresponding SDs or SEs, were used for the qualitative synthesis. For the meta-analysis, a fixed-effects model was used. RESULTS: Twenty-seven randomized clinical trials (representing >2560 participants) were included. Over 78% of the enrolled participants had ≥1 associated CVD risk factor, whereas <22% were healthy. In the meta-analysis, marine n-3 supplements (dose range, 0.37-1.9 g/d) significantly increased pro-inflammatory lysophosphatidylcholines (lyso-PCs; for lyso-PC(16:0): mean, +0.52 [95% confidence interval (CI), 0.02-1.01] µM; for lyso-PC(18:0): mean, +0.58 [95%CI, 0.09-1.08] µM) in obese participants. Additionally, n-3 supplementation (1-5.56 g/d) decreased plasma Lp-PLA2 mass, a well-known inflammation marker, in healthy (-0.35 [95%CI, -0.59 to -0.10] ng/mL), dyslipidemic (-0.36 [95%CI, -0.47 to -0.25] ng/mL), and stable coronary artery disease participants (-0.52 [95%CI, -0.91 to -0.12] ng/mL). CONCLUSIONS: Daily n-3 provided as EPA+DHA supplements and consumed from 1 to 6 months reduced plasma Lp-PLA2 mass in healthy participants and those with CVD and CVD risk factors, suggesting an anti-inflammatory effect. However, the saturated lyso-PC response to n-3 was impaired in obese participants. SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration no. CRD42021218335.


Asunto(s)
Enfermedades Cardiovasculares , Lípidos , Humanos , 1-Alquil-2-acetilglicerofosfocolina Esterasa , Biomarcadores , Enfermedades Cardiovasculares/prevención & control , Ácidos Grasos , Obesidad , Ensayos Clínicos Controlados Aleatorios como Asunto , Lípidos/sangre
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