Seaweeds have been explored by humans for thousands of years as a source of chemical compounds. This study describes the content of minerals, ash, carbohydrates, protein, lipids, and main metabolites of dichloromethane / methanol extracts of the seaweed Ulva lactuca, Padina gymnospora, Palisada perforata and Gelidiella acerosa from sandstone reefs on the Brazilian tropical coast (Pernambuco, Northeastern of Brazil). The content (% dry weight) of carbohydrates ranged from 14.35-48.52, proteins 7.49-14.98, total lipids 0.40-8.92, and ash 18.51-37.02. The concentration (mg kg dry algae−1) of Ca (900-3468), Mg (1655-4902), K (810-1707), Na (1062-4580), Mn (19-4462), and Cu (3.6-6.4) were maximum in Palisada and minimum in Padina. In turn, the lowest and highest contents (mg kg dry algae−1) of Fe (100-2312), Zn (18-43), and Cr (0.08-0.93) were recorded in Gelidiella and Ulva, respectively. Neophytadiene was the major compound. Phytol and palmitic acid were found in all seaweeds, although in low quantities. Palisada had the highest contents (% dry weight) of metabolites (neophytadiene: 23.89, phytol: 8.29; palmitic acid: 8.32), while Ulva had the lowest, except phytone, which was present only in this species. Our findings highlight the potential of these macroalgae from the coastal reefs as a source of chemical compounds. compounds minerals protein lactuca gymnospora Pernambuco, Pernambuco (Pernambuco Brazil. Brazil . Brazil) % ( weight 14.3548.52, 14354852 14.35 48.52, 14 35 48 52 14.35-48.52 7.4914.98, 7491498 7.49 14.98, 7 49 98 7.49-14.98 0.408.92, 040892 0.40 8.92, 0 40 8 92 0.40-8.92 18.5137.02. 18513702 18.51 37.02. 18 51 37 02 18.51-37.02 mg algae−1 algae1 algae 1 9003468, 9003468 900 3468 , (900-3468) 16554902, 16554902 1655 4902 (1655-4902) 8101707, 8101707 810 1707 (810-1707) 10624580, 10624580 1062 4580 (1062-4580) 194462, 194462 19 4462 (19-4462) 3.66.4 3664 3.6 6.4 3 6 4 (3.6-6.4 turn 1002312, 1002312 100 2312 (100-2312) 1843, 1843 43 (18-43) 0.080.93 008093 0.08 0.93 08 93 (0.08-0.93 respectively compound seaweeds quantities neophytadiene (neophytadiene 2389 23 89 23.89 phytol 8.29 829 29 8.32, 832 8.32 32 8.32) phytone species 3548 14.3548.52 1435485 1435 14.3 4852 48.52 5 14.35-48.5 4914 7.4914.98 749149 749 7.4 1498 14.98 9 7.49-14.9 408 0.408.92 04089 040 0.4 892 8.92 0.40-8.9 5137 18.5137.02 1851370 1851 18.5 3702 37.02 18.51-37.0 algae− 900346 90 346 (900-3468 1655490 165 490 (1655-4902 810170 81 170 (810-1707 1062458 106 458 (1062-4580 19446 446 (19-4462 66 3.66. 366 36 3. 64 6. (3.6-6. 100231 10 231 (100-2312 184 (18-43 080 0.080.9 00809 008 0.0 093 0.9 (0.08-0.9 238 2 23.8 8.2 82 83 8.3 354 14.3548.5 143548 143 14. 485 48.5 14.35-48. 491 7.4914.9 74914 74 7. 149 14.9 7.49-14. 0.408.9 0408 04 0. 8.9 0.40-8. 513 18.5137.0 185137 185 18. 370 37.0 18.51-37. 90034 34 (900-346 165549 16 (1655-490 81017 17 (810-170 106245 45 (1062-458 1944 44 (19-446 3.66 (3.6-6 10023 (100-231 (18-4 0.080. 0080 00 09 (0.08-0. 23. 8. 14.3548. 14354 48. 14.35-48 7.4914. 7491 7.49-14 0.408. 0.40-8 18.5137. 18513 37. 18.51-37 9003 (900-34 16554 (1655-49 8101 (810-17 10624 (1062-45 194 (19-44 (3.6- 1002 (100-23 (18- 0.080 (0.08-0 14.3548 14.35-4 7.4914 7.49-1 0.408 0.40- 18.5137 18.51-3 (900-3 (1655-4 (810-1 (1062-4 (19-4 (3.6 (100-2 (18 (0.08- 14.354 14.35- 7.491 7.49- 18.513 18.51- (900- (1655- (810- (1062- (19- (3. (100- (1 (0.08 (900 (1655 (810 (1062 (19 (3 (100 (0.0 (90 (165 (81 (106 (10 (0. (9 (16 (8 (0

The in silico study aimed to suggest phytochemicals from Commiphora leptophloeos leaves essential oil as therapies against coronavirus disease (COVID-19) (or severe acute respiratory syndrome coronavirus 2, SARS-CoV-2). For that, we used molecular docking (MD), absorption, distribution, metabolism, excretion, and toxicity (ADMET) parameters, and pharmacokinetic analysis. MD showed the presence of hydrophobic and hydrogen bonds for nine compounds. β-Selinene and bicyclogermacrene showed the best interaction values with the protein Mpro (ID: 6Y2F) (-5.9) and chimeric receptor complexed with its receptor human ACE2 (ID: 6VW1) (-6.1 and -5.5) proteins, as well as low gastrointestinal and high epithelial absorptions, medium permeability for Caco-2 cells and high epithelial permeability, low oral excretion, and were inhibitors of CYP2C19 and CYP2C9 enzymes. On the other hand, both were not permeable to the blood-brain barrier and inhibitors or substrates for glycoprotein-D, and showed carcinogenic potential, but only β-selinene was considered mutagenic. Although little bioavailable, both presented aspects structurally adequate, being compounds with moderate synthesis difficulty. Therefore, more analyses are necessary to evaluate the mechanism of action and unsatisfactory parameters foreseen in bioinformatic assays. COVID19 COVID 19 (COVID-19 2 SARSCoV2. SARSCoV2 SARSCoV SARS CoV . SARS-CoV-2) that MD, , (MD) absorption distribution metabolism excretion ADMET (ADMET analysis βSelinene β Selinene ID (ID 6Y2F YF Y F 5.9 59 5 9 (-5.9 ACE 6VW1 VW 6.1 61 6 1 (-6. 5.5 55 -5.5 proteins absorptions Caco2 Caco Caco- CYPC CYP C CYP2C1 CYP2C enzymes hand bloodbrain blood brain glycoproteinD, glycoproteinD glycoprotein D, D glycoprotein-D potential βselinene selinene mutagenic bioavailable adequate difficulty Therefore assays COVID1 (COVID-1 SARS-CoV-2 (MD 5. (-5. 6VW 6. (-6 -5. (COVID- SARS-CoV- (-5 (- -5 (COVID SARS-CoV ( -

ABSTRACT Purpose: To characterize the extracellular vesicle protein cargo in the aqueous humor and plasma of patients with ocular toxoplasmosis. Methods: Aqueous humor and plasma were collected from six patients with active ocular toxoplasmosis and six patients with cataract. Extracellular vesicles were isolated, and western blotting and mass spectrometry were performed for protein analysis. Results: All plasma samples from patients with ocular toxoplasmosis and cataract were positive for the tetraspanins CD63 and TSG101. However, the aqueous humor from patients with ocular toxoplasmosis was positive only for CD63. Sixty-seven new unreported proteins were identified in the aqueous humor and plasma of patients with the ocular toxoplasmosis and cataract. Of the 67 proteins, 10 and 7 were found only in the cataract and ocular toxoplasmosis groups, respectively. In general, these proteins were involved in immune system activation and retina homeostasis and were related to infections and retina-associated diseases. Conclusion: The distinct protein signatures between ocular toxoplasmosis and cataract may be helpful in the differential diagnosis of ocular toxoplasmosis. However, more studies are needed to better understand the role of these proteins in the pathogenesis of ocular toxoplasmosis. Purpose Methods isolated analysis Results CD CD6 TSG101 TSG However Sixtyseven Sixty seven 6 1 groups respectively general retinaassociated associated diseases Conclusion TSG10 TSG1

The coronavirus disease (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has had a profound impact on global health and socio-economic conditions. To date, various vaccines have been administered worldwide in an effort to curb the spread of the virus. Despite vaccination efforts, there have been complications. Existing antiviral drugs have shown limited effectiveness, prompting the use of computational methods to understand the dynamics of the virus and develop suitable treatments. The current study focuses on using biocompatible para-sulfonato-calix[4]arenes to dock against two key proteins of SARS-CoV-2, namely ribonucleic acid (RNA)-dependent RNA polymerase, and helicase. Docking results indicate a strong binding affinity of these compounds to the target proteins, with higher scores compared to commonly used medications. Molecular dynamics (MD) simulation validates the docking results, showing stable protein-ligand complexes over time. The compounds are also screened for absorption, distribution, metabolism, and excretion properties and toxicity, suggesting their potential as lead candidates for inhibiting the virus’s key proteins. However, further in vivo and in vitro studies are recommended to confirm these findings. COVID19 COVID 19 (COVID-19 pandemic SARSCoV2, SARSCoV2 SARSCoV SARS CoV , (SARS-CoV-2) socioeconomic socio economic conditions date efforts complications effectiveness treatments parasulfonatocalix4arenes parasulfonatocalixarenes para sulfonato calix 4 arenes 2, SARS-CoV-2 RNAdependent dependent polymerase helicase medications MD (MD proteinligand protein ligand time absorption distribution metabolism toxicity viruss s However findings COVID1 1 (COVID-1 (SARS-CoV-2 parasulfonatocalix SARS-CoV- (COVID- (SARS-CoV- SARS-CoV (COVID (SARS-CoV

Microparticulated whey protein can be used as a fat substitute in foods to enhance their nutritional value and improve their sensory and rheological characteristics. Microparticulation denatures whey proteins through heat treatment, followed by shear rate control to determine the aggregate sizes formed. The processing method used during microparticulation can modify the protein denaturation rate, which may enable the application of new proteins. This study sought to develop a methodology for quantifying whey protein fractions in commercial samples before and after microparticulation at different concentrations and physical states. The developed methodology proved to be applicable because of its selectivity, quantification, detection limits, and precision. The analyzed samples exhibited a higher denaturation rate for β-lactoglobulin than α-lactoalbumin; the denaturation rate varied among samples due to differences in the microparticulation process. characteristics treatment formed states selectivity quantification limits precision βlactoglobulin β lactoglobulin αlactoalbumin α lactoalbumin α-lactoalbumin process

RESUMO: Este estudo explorou o uso exclusivo do ultrassom (US) para extrair proteínas das espinhas dorsais da carpa-capim (Ctenopharyngodon idella) em baixas temperaturas e examinou seu impacto na hidrofobicidade, solubilidade, perfil eletroforético e níveis de sulfidrilas. As espinhas dorsais foram tratadas com 35 e 130 kHz por 20, 30 e 40 minutos a 14 ºC, resultando em duas frações de proteínas: sólida (TPS) e líquida (TPL). O US aumentou o rendimento em comparação com a fração não sonificada. TPL (35 kHz) apresentou uma redução de 16% nos níveis totais e livres de sulfidrila e um aumento de 25% na hidrofobicidade. O US induziu alterações na conformação proteica e na intensidade das bandas, especialmente entre 25 e 100 kDa para TPL a 130 kHz e abaixo de 30 kDa para TPS a 35 kHz. Este estudo demonstrou a eficácia do US na extração e na modificação de algumas propriedades das proteínas de subprodutos de peixe, facilitando assim seu emprego no desenvolvimento de produtos alimentícios inovadores. RESUMO (US carpacapim carpa capim Ctenopharyngodon idella hidrofobicidade solubilidade sulfidrilas 3 13 20 4 1 ºC (TPS TPL. . (TPL) sonificada (3 16 bandas 2 10 peixe inovadores (TPL (

ABSTRACT: This study explored the use only of ultrasound (US) for extracting proteins from grass carp (Ctenopharyngodon idella) backbones at low temperature and examined its impact on hydrophobicity, solubility, electrophoretic profile, and sulfhydryl levels. Backbones were treated with 35 and 130 kHz for 20, 30, and 40 minutes at 14 ºC, resulting in two protein fractions: solid (TPS) and liquid (TPL). US increased yield compared to the non-sonicated fraction. TPL (35 kHz) exhibited a 16% reduction in total and free sulfhydryl levels and a 25% increase in hydrophobicity. US induced protein conformation and band intensity alterations, particularly between 25 to 100 kDa for TPL at 130 kHz and below 30 kDa for TPS at 35 kHz. This study demonstrated the efficacy of US for protein extraction from fish by-products and its capacity to modify protein characteristics, facilitating the development of innovative food products. ABSTRACT (US Ctenopharyngodon idella hydrophobicity solubility profile 3 13 20 4 1 ºC fractions (TPS TPL. . (TPL) nonsonicated non sonicated fraction (3 16 alterations 2 10 byproducts by products characteristics (TPL (

ABSTRACT Beans are a vital component of the human diet, being able to supply a large part of the daily protein requirements of individuals, in addition to containing considerable amounts of iron, calcium, vitamins, carbohydrates, fiber, and lysine. Controlled germination is an accessible and effective technique that aims to improve the nutritional, functional, and sensory qualities of seeds intended for food consumption. This study aimed to characterize fresh and germinated beans of Phaseolus vulgaris (carioca, branco, preto, gordo varieties) and Vigna unguiculata (cowpea). The germination process was conducted in trays containing the sand substrate (350 g) in the environmental conditions of the laboratory. The fresh and germinated beans were evaluated for physicochemical variables in triplicate. The germination process increased moisture content, water activity, ash, pH, soluble alcohol acidity, proteins, ascorbic acid, phenols, tannins, flavonoids, anthocyanins, and carotenoids. On the other hand, there was a reduction in the content of lipids, starch, and total sugars in bean seeds. With the increase in bioactive compounds, it was found that the germination process is an excellent method for increasing the nutritional quality of beans. diet individuals iron calcium vitamins carbohydrates fiber lysine functional consumption carioca, carioca (carioca branco preto varieties cowpea. cowpea . (cowpea) 350 (35 g laboratory triplicate activity ash pH acidity proteins acid phenols tannins flavonoids anthocyanins carotenoids hand lipids starch compounds (cowpea 35 (3 3 (

RESUMO O feijão é um importante componente da dieta humana, sendo capaz de suprir grande parte das necessidades proteicas diárias dos indivíduos, além de conter quantidades consideráveis de ferro, cálcio, vitaminas, carboidratos, fibras e lisina. A germinação controlada é uma técnica acessível e eficaz que visa melhorar as qualidades nutricionais, funcionais e sensoriais de sementes destinadas ao consumo alimentar. O objetivo deste estudo foi caracterizar feijão Phaseolus vulgaris das variedades carioca, branco, preto, gordo e feijão-caupi (Vigna unguiculata) in natura e germinado. O processo de germinação foi realizado em bandejas contendo substrato areia (350 g), em condições ambientais de laboratório. Em seguida, os grãos in natura e germinados foram avaliados quanto às variáveis físico-químicas em triplicata. A germinação do feijão aumentou o teor de umidade, atividade de água, cinzas, pH, acidez álcool solúvel, proteínas, ácido ascórbico, fenóis, taninos, flavonóides, antocianinas e carotenóides. Por outro lado, houve redução no teor de lipídios, amido e açúcares totais nas sementes de feijão. Com o aumento dos compostos bioativos, constatou-se que o processo de germinação é um excelente método para aumentar a qualidade nutricional do feijão. humana indivíduos ferro cálcio vitaminas carboidratos lisina nutricionais alimentar carioca branco preto feijãocaupi caupi Vigna unguiculata germinado 350 (35 g, g , g) laboratório seguida físicoquímicas físico químicas triplicata umidade água cinzas pH solúvel proteínas ascórbico fenóis taninos flavonóides carotenóides lado lipídios bioativos constatouse constatou se 35 (3 3 (

ABSTRACT Introduction: tuberculous meningitis is the most serious form of extrapulmonary tuberculosis, this is due to the high mortality and morbidity in patients, its diagnosis is difficult and the majority of cases can be identified based on clinical criteria and characteristics of the cerebrospinal fluid that the majority Sometimes they are nonspecific. Objective: determine the clinical-epidemiological characteristics in patients with meningeal tuberculosis of patients admitted to the medical clinic area at the National Hospital in the period 2015-2023. Methodology: retrospective descriptive observational cross-sectional study of adult patients with meningeal tuberculosis admitted to the National Hospital in the period 2015-2023. Results: 32 patients between 20 and 80 years old (mean age: 39 years) were included; men 68.75 %, women 32.25 %. Mostly coming from the interior of the country. In most cases, patients presented an increase in proteins in the cerebrospinal fluid and predominantly mononuclear cellularity. The genxpert positivity of Mycobacterium from the cerebrospinal fluid was 62.5 %; in no case was AFB isolated. 37.5 % were seropositive for HIV and 43.75 % had pulmonary disease concomitant to meningitis. Mortality was 31.25 %. Conclusion: tuberculous meningitis in our research mainly affected middle-aged men from the interior, whose initial symptoms are fever in a higher percentage followed by headache, presenting a high mortality.

RESUMEN Introducción: la meningitis tuberculosa es la forma más grave de tuberculosis extrapulmonar, esto se debe a la gran mortalidad y morbilidad en los pacientes, con alta prevalencia en los países en desarrollo, lo que constituye un problema de salud pública. Su diagnóstico es difícil y la mayoría de casos se logran identificar a base de criterios clínicos y características del líquido cefalorraquídeo que la mayoría de veces son inespecíficos. Objetivo: determinar las características clínico-epidemiológicas en pacientes con tuberculosis meníngea de los pacientes internados en área de clínica médica en el Hospital Nacional en el periodo 2015-2023. Metodología: estudio observacional descriptivo de corte transversal de pacientes adultos con tuberculosis meníngea internados en el Centro Médico Nacional en el periodo 2015- 2023. Resultados: se incluyeron 32 pacientes entre 20 y 85 años (edad media: 39 años); varones 68,75 %, mujeres 32,25 %. Mayoría provenientes del interior del país. En la mayoría de los casos los pacientes presentaron un aumento de proteínas en el líquido cefalorraquídeo y celularidad predominio de mononucleares, la positividad de GeneXpert de Mycobacterium del líquido cefalorraquídeo fue 62,5 %, en ningún caso se aisló BAAR. Fueron seropositivos para VIH 37,5 % y tenían afección pulmonar concomitante a la meningitis 43,75 %. La mortalidad fue de 31,25 %. Conclusión: la meningitis tuberculosa en nuestra investigación afectó mayormente a hombres de mediana edad provenientes del interior, cuya clínica inicial es la fiebre en mayor porcentaje seguido de cefalea presentando una alta mortalidad.

Abstract Introduction. Heavy metal pollution is a growing problem due to human activities. Plants can remove, destroy, or transform contaminants from soil, water, and air. By using plant growth regulators and chelating agents, heavy metal toxicity can be reduced. Objective. To evaluate the effect of applying a mixture of oligogalacturonides on peroxidase activity and the contents of malondialdehyde, total protein, and chlorophylls in tomato plants (Solanum lycopersicum L.) var. Amalia subjected to high levels of heavy metals. Materials and methods. Soil contaminated with Cu, Cd, and Fe was collected from the Adalberto Vidal White Ceramic Company in Mayabeque, Cuba, in 2020. The experiment was conducted in 7 kg capacity bags using tomato plants, under semi-controlled conditions at the Instituto Nacional de Ciencias Agrícolas (INCA), with a completely randomized experimental design with each treatment having ten replicates. The treatments with the oligogalacturonides (Ogal) were soil application (30 mg kg-1); foliar spray (20 mg L-1), the combination of these application forms, and a control. Peroxidase activity and the contents of malondialdehyde, total protein, and chlorophylls were determined at 35 and 56 days after the plant’s emergence. Results. The effect of Cu, Cd, and Fe on the seedlings was attenuated by all the use of the Ogal mixture variants use, indicating that they have developed adaptation mechanisms to high metal concentrations which allows to withstand abiotic stress. Conclusions. The Ogal mixture attenuated the effect of heavy metals on peroxidase activity, malondialdehyde content, total proteins, and chlorophylls in Amalia tomato plants.

Resumen Introducción. La contaminación por metales pesados es un problema que ha ido en aumento, debido a las actividades antrópicas. Las plantas pueden eliminar, destruir o transformar contaminantes del suelo, agua y aire. Con el empleo de reguladores del crecimiento vegetal y agentes quelantes se puede reducir la toxicidad por metales pesados. Objetivo. Evaluar el efecto de la aplicación de una mezcla de oligogalacturónidos sobre la actividad peroxidasa y los contenidos de malondialdehido, proteinas totales y clorofilas, en plantas de tomate (Solanum lycopersicum L.) var. Amalia sometidas a altos niveles de metales pesados. Materiales y métodos. Se colectó suelo contaminado con Cu, Cd y el Fe, en la Empresa cerámica blanca Adalberto Vidal de Mayabeque, Cuba en el año 2020. El experimento se desarrolló en bolsas de 7 kg de capacidad y se utilizaron plantas de tomate, en condiciones semi controladas en áreas del Instituto Nacional de Ciencias Agrícolas (INCA), con un diseño experimental completamente aleatorizado con siete tratamientos y diez réplicas. Los tratamientos del producto a base de oligogalacturónidos (Ogal) fueron: aplicación al suelo (30 mg kg-1); aspersión foliar (20 mg L-1), la combinación de estas formas de aplicación y un testigo. A los 35 y 56 días de emergidas las plantas, se determinó la actividad peroxidasa y los contenidos de malondialdehido, proteinas totales y clorofilas. Resultados. El efecto que provocan el Cu, Cd y el Fe en las plántulas, fue atenuado por todas las variantes de uso de la mezcla Ogal, por lo que las mismas han desarrollado mecanismos de adaptación ante las altas concentraciones metálicas que le permiten subsistir al estrés abiótico. Conclusiones. La mezcla de Ogal atenuó el efecto que provocan los metales pesados en la actividad peroxidasa, el contenido malondialdehido, proteínas totales y clorofilas en plantas de tomate var. Amalia.

Summary: Biofortification is a process that increases the nutrient content in plants’ edible parts. The objective was to determine the effect of iron chelate and iron sulfathe applied through foliar and edaphic methods on the mineral, nutritional, and bioactive compound content of the Verdin bean grain. Foliar doses of 0, 25, 50 and 100 mM of iron chelate and edaphic doses of 0, 0.25 and 0.50 g per plant of iron sulfate were applied, which generated 12 treatments that were evaluated in a randomized block design in 4×3 factorial arrangement where the first factor was the foliar doses, and the second factor was the edaphic doses. The content of iron, zinc, manganese, nickel, calcium and potassium, ash, proteins, fats, fiber, total phenols, flavonoid, anthocyanins, and antioxidant capacity were determined in the grain. The individual applications of foliar and edaphic iron had significant effects (P ≤ 0.05), with the edaphic dose of 0.50 g presenting the greatest increases in iron (17.38%), nickel (20.69%), protein (10.93%), crude fiber (5.82%) and antioxidant capacity (2.84%) regarding doses without edaphic iron. The simultaneous application of edaphic and foliar iron showed statistical differences (P ≤ 0.05), presenting the greatest increase in iron (75.91%), nickel (30.61%), ash (114.69%), protein (18.14%) and crude fiber (15.34%) with the 100 mM foliar - 0.50 g edaphic combination regarding to the combination without iron. For individual and simultaneous iron applications, it was observed that increasing the foliar and edaphic doses had antagonistic effects on the zinc and fat content. The application of iron can be beneficial to increase the mineral and nutritional content, and some bioactive compounds, but care must be taken to minimize the negative effects on other nutrients and properties of the grain.

Resumen: La biofortificación es el proceso por medio del cual se puede incrementar el contenido de nutrientes en la parte comestible de las plantas cultivadas. El objetivo fue determinar el efecto del quelato y sulfato de hierro aplicado de forma foliar y edáfica en el contenido mineral, nutricional, y compuestos bioactivos del grano de frijol variedad Verdín. Se aplicaron las dosis de 0, 25, 50 y 100 mM de quelato de hierro foliar y dosis de 0, 0.25 y 0.50 g por planta de sulfato de hierro edáfico, lo que origino 12 tratamientos que se evaluaron bajo un diseño de bloques al azar en arreglo factorial 4×3 donde el primer factor fueron las dosis foliares y el segundo factor las dosis edáficas. En el grano se determinó el contenido de hierro, zinc, manganeso, níquel, calcio, potasio, cenizas, proteínas, grasas, fibra, fenoles totales, flavonoides, antocianinas y capacidad antioxidante. Las aplicaciones individuales de hierro edáfico y foliar tuvieron efectos significativos (P < 0.0001), presentando la aplicación edáfica de 0.50 g de hierro los mayores incrementos de 17.38%, 20.69%, 10.93%, 5.82% y 2.84% del contenido de hierro, níquel, proteína, fibra cruda y capacidad antioxidante con respecto a la dosis sin hierro edáfico. Pero se observaron efectos antagónicos en el contenido de zinc y grasas al incrementar la dosis de hierro. La aplicación simultánea de hierro edáfico y foliar presentó diferencias estadísticas (P ≤ 0.05), presentando el mayor incremento de hierro (75.91%), níquel (30.61%), cenizas (114.69%), proteína (18.14%) y fibra cruda (15.34%) la aplicación de 100 mM foliar y 0.50 g edáfico con respecto a la combinación sin hierro. La aplicación combinada de hierro puede ser benéfica para aumentar el contenido mineral, nutricional y algunos compuestos bioactivos; pero se debe tener cuidado para minimizar los efectos negativos en otros nutrientes y propiedades del grano.

ABSTRACT Postharvest conservation of fresh fruits and vegetables is a constant challenge in the food industry. Biodegradable coatings represent an innovative and sustainable solution to extend their shelf life. In this context, this research evaluated the influence of a coating based on oxidized banana starch (Musa paradisiaca L. group AAA, cv. Cavendish) and olive oil on the conservation of cherry tomatoes (Solanum lycopersicum cv. Cerasiforme) during their storage at ambient conditions. Coating-forming emulsions were prepared using starch (4% m v-1) with a high degree of oxidation, glycerol, Tween 80, and olive oil. The products were dip coated. The starch extraction yield was 27.26% by the wet milling method. The contents of lipids, crude fiber, proteins, carbohydrates, and ashes tended to decrease in oxidized starches with increasing reaction time, the opposite behavior for humidity (P≤0.05). Solubility and oil absorption capacity increased in oxidized starches, while water absorption and swelling power decreased (P≤0.05). The best combination for the formulation of oxidized starch coatings was 3% (m v-1) of glycerol and 0.3% (m v-1) of oil. This coating reduced weight losses and delayed the ripening process. The results suggested that the use of coatings based on oxidized banana starch and olive oil is an effective strategy for maintaining the quality and freshness of the fruits during a longer storage period.

RESUMEN La conservación poscosecha de frutas y hortalizas frescas es un desafío constante en la industria alimentaria. Los recubrimientos biodegradables representan una solución innovadora y sostenible para prolongar su vida útil. En este contexto, esta investigación evaluó la influencia de un recubrimiento a base de almidón oxidado de plátano (Musa paradisiaca L. grupo AAA, cv. Cavendish) y aceite de oliva en la conservación de tomates cherry (Solanum lycopersicum cv. Cerasiforme) durante su almacenamiento en condiciones ambientales. Se prepararon emulsiones formadoras de recubrimiento usando almidón (4% m v-1) con alto grado de oxidación, glicerol, Tween 80 y aceite de oliva. Los productos se recubrieron mediante inmersión. El rendimiento de extracción del almidón fue de 27,26% por el método de molienda húmeda. Los contenidos de lípidos, fibra cruda, proteínas, carbohidratos y cenizas tendieron a disminuir en los almidones oxidados al aumentar el tiempo de reacción, comportamiento opuesto para la humedad (P≤0,05). La solubilidad y capacidad de absorción de aceite aumentaron en los almidones oxidados, mientras que la absorción de agua y poder de hinchamiento disminuyeron (P≤0,05). La mejor combinación para la formulación de los recubrimientos de almidón oxidado fue 3% (m v-1) de glicerol y 0,3% (m v-1) de aceite. Este recubrimiento redujo las pérdidas de masa y retrasó el proceso de maduración. Los resultados sugirieron que el uso de recubrimientos a base de almidón oxidado de plátano y aceite de oliva es una estrategia eficaz para mantener la calidad y frescura de los frutos durante un periodo de almacenamiento más prolongado.

Abstract Fermentation in a solid medium is a technique used for the production of chitin, pigments, proteins and lipids. In the present work, changes in the chemical and microbiological composition were evaluated in micro silages of shrimp (Litopeneus vanamei) and grasshopper (Sphenarium purpurascens) exoskeletons, fermented with a commercial inoculum of Lactobacillus plantarum AVG-112. The amount of molasses for fermentation, proximal composition and microbiological count of the silages, were determined. The waste was mixed with sugarcane molasses as a carbon source and inoculated using a commercial strain (Lactobacillus plantarum AVG-112). After 5 days of fermentation, both silages presented acceptable physical and chemical characteristics. Total coliforms, molds and yeasts were not present and were inhibited by the ensiling process. We concluded that fermentation in a solid medium has suitable characteristics for use as a food supplement for aquatic organisms.

Resumen La fermentación en medio sólido es una técnica utilizada para la producción de quitina, pigmentos, proteínas y lípidos. En el presente trabajo se evaluaron los cambios en la composición química y microbiológica en micro ensilados de exoesqueletos de camarón (Litopeneus vanamei) y chapulín (Sphenarium purpurascens) fermentados con un inoculo comercial de Lactobacillus plantarum AVG-112. Se determinó la cantidad de melaza para la fermentación, la composición proximal y la cuenta microbiológica de los ensilados. Los desechos se mezclaron con melaza de caña de azúcar como fuente de carbono y se inoculó usando una cepa comercial (Lactobacillus plantarum AVG-112). A los 5 d de fermentación ambos ensilados presentaron características físicas y químicas aceptables. Los coliformes totales, mohos y levaduras no estuvieron presentes siendo inhibidos por el proceso de ensilaje. Concluimos que la fermentación en medio sólido tiene características adecuadas para su utilización como suplemento en alimentos para organismos acuáticos.

SUMMARY: This study aimed to explore the potential of Nasturtium officinale L. leaves extract (NOLE) in safeguarding hepatocytes against N-diethylnitrosamine (DEN)-induced hepatocellular carcinoma (HCC) by investigating its effects on biochemical, molecular, and antioxidant pathways. The study also delved into NOLE's role in modulating the HOTAIR/miR-124/Notch1 axis pathway. In this study, 50 Wistar rats were divided into five groups (n=10/group): normal, HCC-induced (100 mg/kg DEN), HCC rats treated with 100 and 200 mg/kg DEN + NOLE, and normal rats treated with 200 mg/kg NOLE. At the study's conclusion, serum levels of liver function markers (such as albumin, total protein, bilirubin, C-reactive protein, ALT, AST, and ALP), inflammatory cytokines (IL-6, IL- 1b, IL-10, and TNF-a), and oxidative parameters [including glutathione peroxidase (GPx), superoxide dismutase (SOD), catalase (CAT) enzyme activity, and nitric oxide (NO) levels] were assessed. The levels of HOTAIR, miR-124, Notch1, and Jagged1 genes and proteins in liver tissue were measured. Immunohistochemical analysis was used to evaluate P53-positive cells in liver hepatocytes. DEN administration led to significant alterations in body and liver weight, serum liver enzymes, antioxidant levels, inflammatory markers, and expression of genes/proteins related to the HOTAIR/miR-124/Notch1 axis in liver pathways. NOLE exhibited dose-dependent effects in mitigating these changes, notably enhancing weight, liver health, antioxidant capacity, and inflammatory responses, especially at the 200 mg/kg dosage. Histopathological assessments revealed structural improvements in liver tissue with NOLE treatment. In conclusion, our study highlights the potential of NOLE in exerting anti-cancer effects against DEN-induced HCC.

RESUMEN: Este estudio tuvo como objetivo explorar el potencial del extracto de hojas de Nasturtium officinale L. (NOLE) para proteger los hepatocitos contra el carcinoma hepatocelular (HCC) inducido por N-dietilnitrosamina (DEN) mediante la investigación de sus efectos sobre las vías bioquímicas, moleculares y antioxidantes. El estudio también profundizó en el papel de NOLE en la modulación de la vía del eje HOTAIR/miR-124/Notch1. En este estudio, 50 ratas Wistar se dividieron en cinco grupos (n=10/ grupo): ratas normales, inducidas por HCC (100 mg/kg de DEN), ratas con HCC tratadas con 100 y 200 mg/kg de DEN + NOLE y ratas normales tratadas con 200 mg/kg de NOLE. Al concluir el estudio, se midieron los niveles séricos de marcadores de función hepática (como albúmina, proteína total, bilirrubina, proteína C reactiva, ALT, AST y ALP), citoquinas inflamatorias (IL-6, IL-1β, IL-10 y TNF-α) y parámetros oxidativos [incluidos los niveles de glutatión peroxidasa (GPx), superóxido dismutasa (SOD), catalasa (CAT) y óxido nítrico (NO)]. Se midieron los niveles de los genes y proteínas HOTAIR, miR-124, Notch1 y Jagged1 en el tejido hepático. Se utilizó análisis inmunohistoquímico para evaluar las células P53 positivas en los hepatocitos del hígado. La administración de DEN provocó alteraciones significativas en el peso corporal y hepático, las enzimas hepáticas séricas, los niveles de antioxidantes, los marcadores inflamatorios y la expresión de genes/proteínas relacionadas con el eje HOTAIR/miR-124/Notch1 en las vías hepáticas. NOLE exhibió efectos dependientes de la dosis para mitigar estos cambios, en particular mejorando el peso, la salud del hígado, la capacidad antioxidante y las respuestas inflamatorias, especialmente en la dosis de 200 mg/kg. Las evaluaciones histopatológicas revelaron mejoras estructurales en el tejido hepático con el tratamiento NOLE. En conclusión, nuestro estudio destaca el potencial de NOLE para ejercer efectos anticancerígenos contra el CHC inducido por DEN.

SUMMARY: The study was designed to explore the association between the immunolocalization of alpha-smooth muscle actin (α- SMA) and S100 proteins within the efferent ductules (ED) from one side, and the sexual maturity and seasonality from the other side. For each season, tissue specimens were obtained from 7 adult and 7 juvenile, clinically healthy male dromedaries. Specimens were investigated by the standard immunohistochemical procedures. The immunohistochemical findings displayed that the pattern of expression was similar for both proteins, either in adults or in juveniles. Expression was significantly higher in adults during season of sexual activity (winter), fairly reduced during periods of transition from activity to inactivity (spring) or from inactivity to activity (autumn) and reaches its lowest magnitude during season of sexual inactivity (summer). On the other hand, a moderate immunoreactivity of both proteins in ED from juvenile male camels was nearly uniform throughout the year. The immunoreactivity for both α-SMA (smooth muscle cells in ductular and vascular walls) and S100 (ductular ciliated cells), was evident during periods of sexual activity. It can be concluded that the immunoreactivity is androgen- dependent and positively correlated with both of sexual activity and maturity, suggesting a crucial role of both α-SMA and S100 proteins in the regulation of the diverse functions of the ED in male dromedaries.

RESUMEN: El estudio fue diseñado para explorar la asociación entre la inmunolocalización de la actina de músculo liso alfa (α-SMA) y las proteínas S100 dentro de los conductos eferentes (ED) por una pate, y la madurez sexual y estacionalidad por otra parte. Para cada estación, se obtuvieron muestras de tejido de 7 dromedarios machos adultos jóvenes y clínicamente sanos. Las muestras se investigaron mediante procedimientos inmunohistoquímicos estándar. Los hallazgos inmunohistoquímicos mostraron que el patrón de expresión era similar para ambas proteínas, ya sea en adultos o en jóvenes. La expresión fue significativamente mayor en adultos durante la temporada de actividad sexual (invierno), bastante reducida durante los períodos de transición de actividad a inactividad (primavera) o de inactividad a actividad (otoño) y alcanzaba su magnitud más baja durante la temporada de inactividad sexual (verano). Por otro lado, una inmunorreactividad moderada de ambas proteínas en el DE de camellos machos juveniles fue casi uniforme durante todo el año. La inmunorreactividad tanto para α-SMA (células musculares lisas en las paredes ductulares y vasculares) como para S100 (células ciliadas ductulares), fue evidenciada durante los períodos de actividad sexual. Se puede concluir que la inmunorreactividad es dependiente de los andrógenos y se correlaciona positivamente tanto con la actividad sexual como con la madurez, lo que sugiere un papel crucial de las proteínas α-SMA y S100 en la regulación de las diversas funciones del DE en dromedarios machos.

SUMMARY: Formaldehyde induces oxidative damage in hippocampal tissue and blood serum by suppressing antioxidant defenses and increasing lipid peroxidation. This results in damage to DNA, proteins, and lipids within cells, disrupting neuronal functions, and may even lead to cell death (apoptosis). Apoptosis occurs as a cellular response triggered by formaldehyde through various mechanisms, including mitochondrial dysfunction, oxidative stress, and DNA damage. Arbutus unedo L. (AUL), which is rich in antioxidants, represents a potential countermeasure. The aim of our study is to investigate the immunohistochemical and biochemical effects of AUL fruit extract (AUE) on apoptosis and oxidative stress induced by FA exposure in the rat hippocampus. The rats were divided into four groups: the experimental group (EG) received 20 mg/kg AUE by oral gavage and 10 ppm FA inhalation; the formaldehyde group (FG) received 10 ppm FA inhalation only; the sham group (SG) received 10 mg/kg AUE by oral gavage; and the control group (CG) underwent routine observation. Hippocampal tissue was isolated after blood sampling. A number of physical changes, such as yellowing of feathers and tail spots, were observed in FA-exposed groups. The biochemical analysis showed significant differences in brain-derived neurotrophic factor (BDNF), malondialdehyde (MDA), GSH (Glutathione) and nitric oxide (NO) levels between the groups. The AUE-treated groups had reduced MDA levels, suggesting a potential reduction in oxidative stress, along with lower apoptotic cell rates in caspase-3 assessments. The FG rats had lower BDNF levels than CG. The SG had the fewest apoptotic cells. All these findings indicate AUE's potential to mitigate neuron damage and reduce oxidative stress.

RESUMEN: El formaldehído induce daño oxidativo en el tejido del hipocampo y del plasma sanguíneo al suprimir las defensas antioxidantes y aumentar la peroxidación lipídica. Esto provoca daños en el ADN, las proteínas y los lípidos dentro de las células, alterando las funciones neuronales e incluso puede provocar la muerte celular (apoptosis). La apoptosis se produce como una respuesta celular desencadenada por el formaldehído a través de diversos mecanismos, incluida la disfunción mitocondrial, el estrés oxidativo y el daño del ADN. Arbutus unedo L. (AUL), rico en antioxidantes, representa una posible contramedida. El objetivo de nuestro estudio fue investigar los efectos inmunohistoquímicos y bioquímicos del extracto de fruta AUL (AUE) sobre la apoptosis y el estrés oxidativo inducido por la exposición a FA en el hipocampo de rata. Las ratas se dividieron en cuatro grupos: el grupo experimental (GE) recibió 20 mg/kg de AUE por sonda oral y 10 ppm de FA por inhalación; el grupo de formaldehído (GF) recibió sólo una inhalación de 10 ppm de FA; el grupo simulado (GS) recibió 10 mg/kg de AUE mediante sonda oral; y el grupo control (GC) se sometió a observación de rutina. Se aisló tejido del hipocampo después de una muestra de sangre. En los grupos expuestos a FA se observaron una serie de cambios físicos, como coloración amarillenta del pelaje y manchas en la cola. El análisis bioquímico mostró diferencias significativas en los niveles de factor neurotrófico derivado del cerebro (BDNF), malondialdehído (MDA), GSH (glutatión) y óxido nítrico (NO) entre los grupos. Los grupos tratados con AUE tenían niveles reducidos de MDA, lo que sugiere una reducción potencial del estrés oxidativo, junto con tasas de células apoptóticas más bajas en las evaluaciones de caspasa-3. Las ratas GF tenían niveles de BDNF más bajos que GC. El GS tenía la menor cantidad de células apoptóticas. Todos estos hallazgos indican el potencial del AUE para mitigar el daño neuronal y reducir el estrés oxidativo.