ABSTRACT
The philopatric and sedentary nature of female S. canicula, its high abundance as a bycatch and resilience to regular exploitation by bottom trawl fisheries and its widespread distribution, makes it a potentially good candidate as a biomonitor species. To evaluate this potential, microwave-assisted extraction (MAE) and Graphite Furnace Atomic Absorption Spectrometry (GF-AAS) were used to analyse Pb, Cd, and Cu in muscle tissue of individuals captured in the Western Mediterranean (Alicante, Spain). A monthly assessment of the concentration of these three analytes was conducted from November 2019 to November 2020 with 300 individuals. Results showed the existence of slightly higher mean concentrations during warmer seasons for Pb and Cd with mean concentrations for Pb and Cu peaking in Autumn 2019 and during Spring 2020 in the case of Cd. Significant differences in analyte concentrations found between non-consecutive months suggested gradual variability in time. Although space-wise, time-persistent concentration hotspots were observed throughout the sample area, the magnitude of these appeared to be variable in time and should be evaluated in future studies.
ABSTRACT
This study details the preparation and investigation of molecular nanogels formed by the self-assembly of bolaamphiphilic dipeptide derivatives containing a reduction-sensitive disulfide unit. The described bolaamphiphiles, featuring amino acid terminal groups, generate cationic vesicles at pH 4, which evolve into gel-like nanoparticles at pH 7. The critical aggregation concentration has been determined, and the nanogels' size and morphology have been characterized through Dynamic Light Scattering (DLS) and Transmission Electron Microscopy (TEM). Circular Dichroism (CD) spectroscopy reveals substantial molecular reconfigurations accompanying the pH shift. These nanogels enhance the in vitro cellular uptake of the lipophilic dye Nile Red and the ionic photosensitizer Rose Bengal into Human colon adenocarcinoma (HT-29) cells, eliminating the need for organic co-solvents in the former case. Fluorescence measurements with Nile Red as a probe indicate the reduction-sensitive disassembly of the nanogels. In photodynamic therapy (PDT) applications, Rose Bengal-loaded nanogels demonstrate notable improvements, with flow cytometry analysis evidencing increased apoptotic activity in the study with HT-29 cells.
Subject(s)
Nanogels , Oxazines , Rose Bengal , Humans , Rose Bengal/chemistry , Rose Bengal/pharmacology , Hydrogen-Ion Concentration , Oxazines/chemistry , Oxazines/pharmacology , Nanogels/chemistry , HT29 Cells , Photosensitizing Agents/chemistry , Photosensitizing Agents/pharmacology , Photochemotherapy , Particle Size , Drug Delivery Systems , Apoptosis/drug effects , Oxidation-Reduction , Furans , PyridonesABSTRACT
Introduction: perceived body weight refers to the subjectively assessed weight, which may not correspond to the objectively measured weight.Statistics show that 14 % to 83 % of parents misperceive their childrens weight status, with a propensity for underestimation.Objective: we compared the accuracy of the visual versus the categorical method. We also identified factors and feeding practices associatedwith excess weight underestimation.Material and methods: we carried out a cross-sectional study in five states of Mexico with 1,845 mother-child dyads of children aged 2-12years. The mothers were interviewed about weight perception with two methods, visual and categorical. The Child Feeding Questionnaire identifiedmaternal feeding practices. Actual weight and height were categorized according to WHO criteria. Analysis consisted of Cohens kappa estimation,multivariate logistic regression, and Mann-Whitney tests.Results: more mothers correctly identified the weight of their children with the categorical than with the visual method (68 % vs 42 %, p <0.0001). The excess weight underestimation was lower (49 % vs 82 %, p < 0.0001) and the degree of agreement was higher with the cate-gorical method (kappa, 0.39 and 0.08). The better results remained regardless of age. Age 2-5 years increased the odds of overweight/obesityunderestimation. Feeding practices differed by weight perception category, childs age, and method of assessment.Conclusions: the categorical method was more accurate. Recognition of correct weight perception is one of the first actions required forcontrolling childhood overweight/obesity.(AU)
Introducción: la percepción del peso corporal se refiere al peso evaluado subjetivamente, que puede no corresponder al peso medido objeti-vamente. Las estadísticas muestran que entre el 14 % y el 83 % de los padres tienen una percepción inadecuada del estado del peso de sushijos, predominando la subestimación.Objetivo: comparar la precisión del método categórico y la del visual e identificar los factores y prácticas de alimentación asociados a la sub-estimación del exceso de peso.Material y métodos: se realizó un estudio transversal en cinco estados de México con 1,845 díadas madre-hijo de niños de 2-11 años. Lasmadres fueron entrevistadas sobre su percepción del peso con un método visual y uno categórico. El Cuestionario de Alimentación Infantil iden-tificó las prácticas de alimentación. El peso y la altura se clasificaron con los criterios de la OMS. Se estimó la kappa de Cohen y se utilizaron laregresión logística multivariada y las pruebas de Mann-Whitney.Resultados: más madres identificaron correctamente el peso de sus hijos con el método categórico que con el visual (68 % vs. 42 %, p <0,0001). La subestimación del exceso de peso fue menor (49 % vs 82 %, p <0,0001) y el grado de concordancia mayor con el método categórico(kappa: 0,39 y 0,08). Los resultados se mantuvieron independientemente de la edad. La edad de 2-5 años aumentó la probabilidad de subestimarel sobrepeso/obesidad. Las prácticas de alimentación difirieron por categoría de percepción del peso, edad del niño y método de evaluación.Conclusiones: el método categórico fue más preciso. El reconocimiento de la correcta percepción del peso constituye una de las primerasacciones para el control del sobrepeso/obesidad infantil.(AU)
Subject(s)
Humans , Male , Female , Child , Body Weight , Overweight , Pediatric Obesity , Child Nutrition , Nutrition Assessment , Child Health , Mexico , Nutritional Sciences , Cross-Sectional Studies , Surveys and QuestionnairesABSTRACT
Introduction: Introduction: perceived body weight refers to the subjectively assessed weight, which may not correspond to the objectively measured weight. Statistics show that 14 % to 83 % of parents misperceive their children's weight status, with a propensity for underestimation. Objective: we compared the accuracy of the visual versus the categorical method. We also identified factors and feeding practices associated with excess weight underestimation. Material and methods: we carried out a cross-sectional study in five states of Mexico with 1,845 mother-child dyads of children aged 2-12 years. The mothers were interviewed about weight perception with two methods, visual and categorical. The Child Feeding Questionnaire identified maternal feeding practices. Actual weight and height were categorized according to WHO criteria. Analysis consisted of Cohen's kappa estimation, multivariate logistic regression, and Mann-Whitney tests. Results: more mothers correctly identified the weight of their children with the categorical than with the visual method (68 % vs 42 %, p < 0.0001). The excess weight underestimation was lower (49 % vs 82 %, p < 0.0001) and the degree of agreement was higher with the categorical method (kappa, 0.39 and 0.08). The better results remained regardless of age. Age 2-5 years increased the odds of overweight/obesity underestimation. Feeding practices differed by weight perception category, child's age, and method of assessment. Conclusions: the categorical method was more accurate. Recognition of correct weight perception is one of the first actions required for controlling childhood overweight/obesity.
Introducción: Introducción: la percepción del peso corporal se refiere al peso evaluado subjetivamente, que puede no corresponder al peso medido objetivamente. Las estadísticas muestran que entre el 14 % y el 83 % de los padres tienen una percepción inadecuada del estado del peso de sus hijos, predominando la subestimación. Objetivo: comparar la precisión del método categórico y la del visual e identificar los factores y prácticas de alimentación asociados a la subestimación del exceso de peso. Material y métodos: se realizó un estudio transversal en cinco estados de México con 1,845 díadas madre-hijo de niños de 2-11 años. Las madres fueron entrevistadas sobre su percepción del peso con un método visual y uno categórico. El Cuestionario de Alimentación Infantil identificó las prácticas de alimentación. El peso y la altura se clasificaron con los criterios de la OMS. Se estimó la kappa de Cohen y se utilizaron la regresión logística multivariada y las pruebas de Mann-Whitney. Resultados: más madres identificaron correctamente el peso de sus hijos con el método categórico que con el visual (68 % vs. 42 %, p < 0,0001). La subestimación del exceso de peso fue menor (49 % vs 82 %, p <0,0001) y el grado de concordancia mayor con el método categórico (kappa: 0,39 y 0,08). Los resultados se mantuvieron independientemente de la edad. La edad de 2-5 años aumentó la probabilidad de subestimar el sobrepeso/obesidad. Las prácticas de alimentación difirieron por categoría de percepción del peso, edad del niño y método de evaluación. Conclusiones: el método categórico fue más preciso. El reconocimiento de la correcta percepción del peso constituye una de las primeras acciones para el control del sobrepeso/obesidad infantil.
Subject(s)
Mothers , Pediatric Obesity , Female , Humans , Child , Body Weight , Body Mass Index , Cross-Sectional Studies , Mexico/epidemiology , Pediatric Obesity/epidemiology , Overweight/epidemiology , Weight Gain , Surveys and QuestionnairesABSTRACT
The potential bioaccumulation of pollutants, such as heavy metals, may pose a threat to the western Mediterranean chondrichthyans and human consumers. Therefore, the first extensive assessment of cadmium (Cd), lead (Pb), and copper (Cu) concentrations in the muscle tissue of 17 species of sharks, rays, and chimaeras in this region was conducted via Microwave Assisted Extraction (MAE) and Graphite Furnace Atomic Absorption Spectrometry (GFAAS). Significant differences between species were observed, particularly related to the rabbit fish (Chimaera monstrosa) and the velvet belly lantern shark (Etmopterus spinax), which exceeded the European Union (EU) Commission Regulation 2023/915 threshold of Cd. Overall, heavy metal concentrations correlated negatively with size and trophic level but positively with depth. Although the consumption of these species may entail minimal risk to adult humans, caution is advised, especially for children. These findings are important due to the widespread consumption of chondrichthyans in many western Mediterranean regions.
Subject(s)
Metals, Heavy , Sharks , Water Pollutants, Chemical , Animals , Child , Humans , Cadmium/analysis , Mediterranean Sea , Metals, Heavy/analysis , Fishes , Water Pollutants, Chemical/analysis , Environmental MonitoringABSTRACT
This paper presents a study of the aggregation of cationic bolaamphiphilic molecules into vesicles. These molecules are based on a cystamine core with protonated terminal dipeptide groups. The study found that vesicles can be formed at pH 4 for all of the dipeptide-terminated bolaamphiphiles containing different combinations of l-valine, l-phenylalanine, and l-tryptophan. The concentration for aggregation onset was determined by using pyrene as a fluorescent probe or light dispersion for compounds with tryptophan. Dynamic light scattering (DLS) studies and transmission electron microscopy (TEM) reveal that the vesicles have diameters ranging from 140 to 500 nm and show the capability of loading hydrophobic cargos, such as Nile red, and their liberation in reductive environments. Furthermore, the bolaamphiphiles are only fully protonated and prone to vesicle formation at acidic pH, making them a promising alternative for gastrointestinal delivery.
Subject(s)
Amino Acids , Dipeptides , Dipeptides/chemistry , Furans/chemistry , Pyridones/chemistry , TryptophanABSTRACT
Introducción: La inconsistencia en el diseño e implementación de los programas de cuidados perioperatorios limita su universalización, y es aquí donde las tecnologías en salud pueden estandarizar estos procesos. El objetivo del estudio es crear una app para smartphone con un programa de cuidados perioperatorios, implementarla en un grupo de pacientes programados para un procedimiento quirúrgico torácico y evaluar su utilización. Métodos: Estudio prospectivo y descriptivo. Se creó una app (Fissios App) que contiene 40 recomendaciones perioperatorias y un programa de 10 ejercicios de fisioterapia respiratoria. A los pacientes se les recomendó utilizarla antes y después de la cirugía; para medir su utilización se creó y se aplicó un cuestionario. Se realizó un análisis descriptivo de las variables de los pacientes, las respuestas del cuestionario y se evaluó su asociación. Resultados: Se incluyeron 131 pacientes, el 60,3% eran varones con una mediana de edad de 62 años (51-71), y el 26,72% habían completado estudios secundarios. El 89,3% resaltaron la facilidad para descargar y configurar la app. Más del 90% de los pacientes valoraron positivamente la claridad para explicar los ejercicios respiratorios y las recomendaciones perioperatorias. Ciento cuatro (79,4%) pacientes destacaron la contribución del uso de la app para afrontar el postoperatorio. Conclusiones: Se creó una app (Fissios App) con un programa de cuidados perioperatorios y se implementó satisfactoriamente sin importar la edad ni el nivel educativo de los pacientes. La herramienta explica claramente la información contenida, y su uso antes de la cirugía les ayudó a afrontar el postoperatorio, con un nivel adecuado de exigencia física y de tiempo de uso. (AU)
Introduction: The design and implementation inconsistency of perioperative care programs limits their universalization, and it is where e-Health can standardize these processes. The objective of the study is to create a Smartphone app with a perioperative care program, implement it in a group of patients scheduled for a thoracic surgical procedure, and evaluates its use. Methods: A prospective and descriptive study. We created a Smartphone app (Fissios App) which contains 40 perioperative recommendations and 10 chest physical exercises. Patients were recommended to use it before and after surgery; to measure its use, we created and applied a questionnaire. A descriptive analysis of patient variables and questionnaire responses was performed and their association evaluated. Results: One hundred fourpatients were included, the 60.3% were men with a median age of 62 years (51-71), and 26.72% had completed high school. The 89.3% of patients highlighted the ease of downloading and setting up the app. More than 90% of patients positively assessed clarity in explaining chest physical exercises and perioperative recommendations. One hundred four (79.4%) patients highlighted the contribution of the use of the app during the preoperative period to face the postoperative period. Conclusions: We created a Smartphone app (Fissios App) with a perioperative care program and it was successfully implemented regardless of the age or educational level of patients. The tool clearly explains the information contained and the patients reported that its use before surgery helped them to face the postoperative period, with an appropriate level of physical demand and time of use. (AU)
Subject(s)
Humans , Male , Female , Young Adult , Adult , Middle Aged , Aged , Aged, 80 and over , Mobile Applications , Thoracic Surgery , Epidemiology, Descriptive , Prospective Studies , Surveys and Questionnaires , Spain , Perioperative Period , Postoperative ComplicationsABSTRACT
Peppers (Capsicum sp.) are used both as vegetables and/or spice and their fruits are used in a plethora of recipes, contributing to their flavor and aroma. Among flavor-related traits, pungency (capsaicinoids) and lately volatiles have been considered the most important factors. However, the knowledge of sugars is low, probably due to the fact peppers were historically considered tasteless. Here, using HPLC, we studied the content and profile of major sugars and capsaicinoids in a comprehensive collection of varietal types (genotype, G), grown under different growing systems (environment, E) in two years (Y) and considered the two main ripening stages (R). We found a major contribution to the ripening stage and the genotype in total and individual sugars and capsaicinoids. The year was also significant in most cases, as well as the G × E and G × Y interactions, while the growing system was low or nil. Ripening increased considerably in sugars (from 19.6 to 36.1 g kg-1 on average) and capsaicinoids (from 97 to 142 mg kg-1 on average), with remarkable differences among varieties. Moreover, sugars in fully ripe fruits ranged between 7.5 and 38.5 g kg-1 in glucose and between 5.2 and 34.3 g kg-1 in fructose, and several accessions reached total sugars between 40 and 70 g kg-1, similar to tomatoes. The results reveal the importance of the genotype and the ripening for these traits, particularly sugars, which should be considered key for the improvement of taste and flavor in peppers.
ABSTRACT
INTRODUCTION: The design and implementation inconsistency of perioperative care programs limits their universalization, and it is where e-Health can standardize these processes. The objective of the study is to create a Smartphone App with a perioperative care program, implement it in a group of patients scheduled for a thoracic surgical procedure, and evaluates its use. METHODS: A prospective and descriptive study. We created a Smartphone app (Fissios App) which contains 40 perioperative recommendations and 10 chest physical exercises. Patients were recommended to use it before and after surgery; to measure its use, we created and applied a questionnaire. A descriptive analysis of patient variables and questionnaire responses was performed and their association evaluated. RESULTS: One hundred four patients were included, 60.3% were men with a median age of 62 years (51-71), and 26.72% had completed high school. The 89.3% of patients highlighted the ease of downloading and setting up the app. More than 90% of patients positively assessed clarity in explaining chest physical exercises and perioperative recommendations. One hundred four (79.4%) patients highlighted the contribution of the use of the app during the preoperative period to face the postoperative period. CONCLUSIONS: We created a Smartphone app (Fissios App) with a perioperative care program and it was successfully implemented regardless of the age or educational level of patients. The tool clearly explains the information contained and the patients reported that its use before surgery helped them to face the postoperative period, with an appropriate level of physical demand and time of use.
Subject(s)
Mobile Applications , Thoracic Surgery , Male , Humans , Middle Aged , Aged , Female , Prospective Studies , Perioperative Care/methods , Surveys and QuestionnairesABSTRACT
Necrotizing enterocolitis (NEC) is a serious condition related to prematurity and the initiation of enteral feeding. In this article, we review the evidence published in recent years on necrotizing enterocolitis risk factors (prematurity, feeding with low-weight formula, existence of intestinal dysbiosis) and protective factors (human milk or donated milk supply, supplementation of human milk with oligosaccharides, probiotics administration, and the determination of disease predictive biomarkers). A systematic review was conducted of preventive, risk and predictive factors for necrotizing enterocolitis in neonates prior to 37 weeks' gestational age, based on a literature search for clinical trials, meta-analyses, randomized controlled trials and systematic reviews published between January 2018 and October 2021. For this purpose, the PubMed, MEDLINE, and Cochrane Library databases were consulted. The literature search obtained 113 articles, of which 19 were selected for further analysis after applying the inclusion and exclusion criteria. The conclusions drawn from this analysis were that adequate knowledge of risk factors that can be prevented or modified (such as alteration of the intestinal microbiota, oxidative stress, metabolic dysfunction at birth, or alteration of the immunity modulation) can reduce the incidence of NEC in premature infants. These factors include the supplementation of enteral nutrition with human milk oligosaccharides (with prebiotic and immunomodulatory effects), the combined administration of probiotics (especially the Lactobacillus spp and Bifidobacterium spp combination, which inhibits bacterial adhesion effects, improves the intestinal mucosa barrier function, strengthens the innate and adaptive immune system and increases the secretion of bioactive metabolites), the supplementation of human milk with lactoferrin and the use of donated milk fortified in accordance with the characteristics of the premature newborn. The determination of factors that can predict the existence of NEC, such as fecal calprotectin, increased TLR4 activity, and IL6 receptor, can lead to an early diagnosis of NEC. Although further studies should be conducted to determine the values of predictive biomarkers of NEC, and/or the recommended doses and strains of probiotics, lactoferrin or oligosaccharides, the knowledge acquired in recent years is encouraging.
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BACKGROUND: Currently, there are still prejudices and negative beliefs towards people with severe mental disorder. The stigma of healthcare professionals can affect both recovery time and patients' own self-stigma. In universities, it is necessary to reduce these prejudices through training on mental health. PURPOSE: The purpose of this research has been to assess the use of educational escape rooms as a learning and awareness strategy on stigmatizing attitudes towards people with serious mental disorders in university students. METHODS: An online escape room has been designed whose narrative shows the daily life of a person with a serious mental illness. An exploratory qualitative study has been carried out to explore the perception of 44 university students from two Andalusian universities about this escape room. RESULTS: The results of the study show that most of the interviewed students consider that the educational escape room has been a fun and motivating learning strategy, which has allowed them to learn cooperatively and empathize with the protagonist with a mental disorder. CONCLUSION: Online escape rooms can be a useful strategy for teaching health sciences students. Considering it a fun activity, students are more participatory and engaged to the curricular content, in our case, stigmatizing attitudes towards people with serious mental disorders.
ABSTRACT
Larvae of an unidentified Lepidopteran hepialid were found boring stems and crown roots of blackberry (Rubus sp.) in Michoacán, Mexico. In this study, the morphological and molecular identification of larvae and adults of this insect was performed. Preliminary aspects of biology, including information on parasitoids associated to larval stage, are also recorded. A total of 109 larvae of various instars were collected and three were reared to adult. The two females and one male were identified as Phassus huebneri (Geyer) (Lepidoptera: Hepialidae) following morphological characters. This identification was corroborated by comparing the cytochrome oxidase I (COI) barcode of two field-collected larvae (IIAFL1 and IIAFL2) with sequences of Phassus spp. obtained from GenBank. A Neighbor-Joining similarity analysis yielded a phenogram with two subclades. The first subclade grouped the IIAFL1 and IIAFL2 sequences with two other Mexican sequences categorized as P. huebneri, whereas in the second subclade other species belonging to the genus Phassus from Guatemala and Costa Rica were grouped together. Larval development of nine instars took about 14 months. Larvae reached a maximum length of 10 cm. The pupal stage lasted 39-41 days. Each of the two females laid over 1,000 unfertilized eggs within a period of 48 h. Larvae were parasitized by Dinera grisescens Fallen (Diptera: Tachinidae) and another unidentified Dinera sp. This study provides additional evidences on the distribution pattern of P. huebneri in western Mexico and presents the first record of this species feeding on one of the most economically important crops in Mexico.
Subject(s)
Diptera , Lepidoptera , Moths , Rubus , Female , Male , Animals , Moths/genetics , Mexico , Larva/genetics , BiologyABSTRACT
Spinal cord injury (SCI) is a complex neuropathological condition that represents a major challenge for clinicians and scientists due to patient's functional dysfunction and paralysis. Several treatments have been proposed including biological factors, drugs and cells administered in various ways. Stem cells arise as good candidates to treat SCI since they are known to secrete neurotrophic factors, improving neuroregeneration, but also due to their role in modulating the inflammatory process, favoring a pro-regenerative status. There are several types of cells that have been tested to treat SCI in experimental and clinical studies, but we still face many unanswered questions; one of them is the type of cells that can offer the best benefits and, also the ideal dose and administration routes. This review aimed to summarize recent research on cell treatment, focusing on current delivery strategies for SCI therapy and their effects in tissue repair and regeneration.
Subject(s)
Neurogenesis , Spinal Cord Injuries/surgery , Spinal Cord Regeneration , Spinal Cord/surgery , Stem Cell Transplantation , Animals , Humans , Recovery of Function , Spinal Cord/metabolism , Spinal Cord/pathology , Spinal Cord/physiopathology , Spinal Cord Injuries/metabolism , Spinal Cord Injuries/pathology , Spinal Cord Injuries/physiopathology , Stem Cell Transplantation/adverse effects , Treatment OutcomeABSTRACT
AIM: To identify and evaluate randomized clinical trials focusing on economic evaluation of workplace health promotion (WHP) interventions based on healthy lifestyles, physical activity and nutrition. DESIGN: A systematic review and meta-analysis was carried out between March and May 2019, following the PRISMA statement. DATA SOURCES: The literature search was conducted on Cochrane Library, Scopus, WOS and Medline databases. REVIEW METHODS: The quality appraisal included the overall risk of bias (Cochrane Collaboration tool), the quality of the evidence (GRADEpro) and the quality of the health economic analysis (QHES instrument). RESULTS: Of the 15 studies selected, 3 were interventions based on nutrition, 11 were focused on lifestyle and only one on physical activity. Given the heterogeneity of included studies, it was decided to do a subgroup analysis. For the weight loss (n = 5 studies), a general increase of 0.56 Kg (95% CI = 0.76, 0.84) I2 = 99.41%, and for the Quality-adjusted Life Years achieved (n = 5 studies) a very small increase of 0.003 (95% CI = 0.002, 0.004) I2 = 99.25%, were observed. CONCLUSIONS: The implementation of lifestyle interventions in the workplace has proven to be cost-effective for both employers and society. IMPACT: What problem did the study address? There are few studies aimed at evaluating the efficiency of WHP interventions. However, those that identify and assessing interventions related to lifestyle are particularly scarce, despite the evidence showing that these researchers improve the quality of care of occupational health. What were the main findings? This systematic review demonstrates the effectiveness of the WHP interventions, and in some cases, the efficiency of these interventions for both employers and society. Additional research in this area is necessary as well as the assessment of the cost-effectiveness of such interventions. Where and on whom will the research have an impact? To know the cost-benefit of different WHP interventions allows more efficient management of resources, which helps to make political and business decisions, becoming healthier and safer workplaces.
Subject(s)
Health Promotion , Workplace , Cost-Benefit Analysis , Exercise , Humans , Life StyleABSTRACT
The biochemical composition and fluorescence properties of DOM were assessed in relation to phytoplankton and major aquatic bacterial clades in a regenerative area of the Argentine Shelf. DOM was mainly of autochthonous biological origin, containing humic- and protein-like substances of medium degree of unsaturation and diagenesis. Biochemical-DOM accounted for 25% of total DOC, being dissolved combined amino acids (DCAA) the dominant fraction followed by free carbohydrates. Phytoplankton was the main source of serine, alanine, and valine, and particulate carbohydrates. Gammaproteobacteria abundance correlated negatively with ammonium and positively with DCAA, suggesting a coupling between ammonium consumption and refractory amino acid production. A preferential utilization of alanine, leucine and threonine as nitrogen source was inferred from the distribution of Cytophaga-Flavobacteria-Bacteroidete in relation with dissolved free amino acids (DFAA). Notably, Alpha- and Betaproteobacteria correlated with the large pool (75%) of chemically unidentified DOC and not with DCAA or dissolved combined carbohydrates. Particularly, Alphaproteobacteria (â¼40% of EUB total heterotrophic bacteria) either significantly contribute to the production of the "humic", refractory fraction of marine DOM, or the latter impairs resource control on their abundance. Spatial heterogeneity inherent to coastal-shelf areas drives important regional variability in the biochemical properties of DOM.
Subject(s)
Carbon , Humic Substances , Bacteria , Humic Substances/analysis , Nitrogen/analysis , PhytoplanktonABSTRACT
PURPOSE: To assess the clinical outcomes of transcatheter arterial embolization (TAE) for secondary stiff shoulder (SSS). MATERIALS AND METHODS: This is a retrospective analysis of prospectively collected data performed between January 2017 and December 2019. This study comprised 25 patients (20 women and 5 men; median age, 49 years; range 27-59) with SSS resistant to conservative management during at least 3 months. The median time of stiffness was 12 months. The etiology of SSS was postoperative in 14 patients (56%) and posttraumatic in the remaining 11 patients (44%). Periods of immobilization in all patients were associated. TAE was performed, and technical aspects, adverse events, changes for pain, and physical examination before and 6 months after TAE were assessed. RESULTS: Abnormal vessels were observed in 20 of 25 (80%) of the procedures. Transitory cutaneous erythema was noted in 4 patients treated after TAE. Significant differences were observed in the median pain visual analog scale reduction between before and 6 months after TAE (8 vs 2, P < .001). Shoulder mobility significantly improved in both flexion and abduction degrees between before and at 6 months after TAE in (70° vs 150°; P < .001). No symptoms of recurrence appeared. CONCLUSIONS: TAE can result in pain reduction and mobility improvement in patients with SSS refractory to conservative therapy.
Subject(s)
Bursitis/therapy , Embolization, Therapeutic , Shoulder Pain/therapy , Adult , Bursitis/diagnostic imaging , Bursitis/etiology , Bursitis/physiopathology , Embolization, Therapeutic/adverse effects , Female , Humans , Male , Middle Aged , Recovery of Function , Retrospective Studies , Shoulder Pain/diagnostic imaging , Shoulder Pain/etiology , Shoulder Pain/physiopathology , Time Factors , Treatment OutcomeABSTRACT
El hemoperitoneo puede ocurrir en diversas condiciones, entre ellas las tumorales. Se presenta el caso de una paciente de 80 años de edad, con antecedente de hipertensión arterial (HTA), falla cardiaca y accidente cerebrovascular (ACV) que ingresa por dolor abdominal en el flanco derecho; al examen físico se describe una masa palpable, en el estudio tomográfico se caracterizó un hepatocarcinoma asociado al lóbulo hepático de Riedel. A los cinco días sufrió una ruptura hepática parcial con sangrado activo al peritoneo. Falleció como consecuencia de las complicaciones
Hemoperitoneum can occur under various conditions, including tumorous ones. We present a case of an 80-year-old female patient, with a history of arterial hypertension, heart failure and stroke who was admitted due to abdominal pain in the right flank, on physical examination a palpable mass was noted. In the tomographic study, a hepatic carcinoma associated with Riedel's hepatic lobe was characterized. After five days he suffered a partial hepatic rupture with active bleeding into the peritoneum. He died as a result of complications
Subject(s)
Hemoperitoneum , Abdominal Pain , Carcinoma, HepatocellularABSTRACT
INTRODUCCIÓN: La hipertensión intracraneal idiopática es una entidad con una incidencia anual aproximada de 1,2 por cada 100.000 habitantes. Afecta en mayor proporción a mujeres obesas y en edad fértil. La cefalea es el síntoma más característico, seguido de las alteraciones visuales. En los últimos años, se ha incrementado el diagnóstico de la estenosis de los senos durales en los casos de hipertensión intracraneal resistentes al tratamiento convencional. Por ello, se encuentra en auge el desarrollo de la terapia endovascular como opción terapéutica en pacientes seleccionados. Casos clínicos. Se presentan tres casos de hipertensión intracraneal secundaria a estenosis de los senos durales, diagnosticados y tratados en nuestro hospital. A pesar de la instauración del adecuado tratamiento diurético y de la realización de procedimientos invasivos de derivación del líquido cefalorraquídeo, persistían la clínica neurológica y el déficit visual. Tras comprobar que cumplían los requisitos descritos en la bibliografía, se sometieron a la implantación de stent intracraneal (stenting), con resultado satisfactorio en todos ellos, logrando la desaparición de la cefalea y la recuperación de la agudeza visual. CONCLUSIÓN: El stenting de la estenosis de los senos durales como causa de hipertensión intracraneal es una técnica cada vez más utilizada que ha presentado resultados favorables. Es necesaria la realización de estudios para conocer su impacto a largo plazo
INTRODUCTION: Idiopathic intracranial hypertension is an entity with an incidence of approximately 1.2: 100,000 inhabitants/year. It affects in a greater proportion obese women and women of childbearing age. Headache is the most characteristic symptom, followed by visual disturbances. In recent years, the diagnosis of dural sinus stenosis has increased in cases of intracranial hypertension resistant to conventional treatment. For this reason, the development of endovascular therapy as a therapeutic option in selected patients is booming. Case reports. We present three cases of intracranial hypertension secondary to dural sinus stenosis, diagnosed and treated in our hospital. Despite the establishment of adequate diuretic treatment and the performance of invasive procedures to bypass the cerebrospinal fluid, they persisted with neurological symptoms and visual deficits. After verifying that they fulfilled the requirements described in the literature, they underwent intracranial stenting, with satisfactory results in all of them, achieving the disappearance of the headache and recovery of visual acuity. CONCLUSION: Stenting of dural sinus stenosis as a cause of intracranial hypertension is an increasingly used technique, which has presented favorable results. Studies are necessary to know its long-term impact
Subject(s)
Humans , Male , Female , Young Adult , Adult , Endovascular Procedures , Constriction, Pathologic/surgery , Cranial Sinuses/pathology , Cranial Sinuses/surgery , Intracranial Hypertension/complications , Intracranial Hypertension/surgery , Intracranial Hypertension/diagnostic imaging , Stents , Magnetic Resonance Imaging , Treatment OutcomeABSTRACT
Despite the regenerative potential of the Peripheral Nervous System (PNS), injuries with loss of a nerve segment make the functional recovery a challenge. This work aimed to investigate the effects of the association of biodegradable conduits of poly (lactic acid) (PLA) with human adipose-derived stem cells (hADSCs) on the regeneration of the sciatic nerve. C57BL / 6 male mice were submitted to sciatic nerve transection followed by tubulization with PLA conduit. Animals were allocated in two groups: the first received an injection of DMEM inside the conduit (DMEM) and the second received hADSCs inside it (hADSC). Sensory and motor functions were assessed by the pinprick test and electroneuromiography, respectively. To assess neuronal survival the retrograde tracer fluorogold was injected into the sciatic nerve distally to the lesion site. One week after that, animals were sacrificed, tissues harvested and processed for morphological evaluation. After eight weeks, all animals showed sensory recovery in the pinprick test and there was no significant difference between the two groups. The amplitude of the compound muscle action potential was higher in the hADSCs group. The number of myelinated nerve fibers, muscle cells and motor plates was higher in the hADSC group. There was also greater survival of sensory and motor neurons in the hADSC animals. These results suggest that the association of PLA conduit and cell therapy with hADSCs leads to a better functional and morphological recovery after sciatic nerve transection.