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1.
Plants (Basel) ; 13(16)2024 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-39204745

RESUMEN

Plant-growth-promoting bacteria (PGPB) have beneficial effects on plants. They can promote growth and enhance plant defense against abiotic stress and disease, and these effects are associated with changes in the plant metabolite profile. The research problem addressed in this study was the impact of inoculation with PGPB on the metabolite profile of Salicornia europaea L. across controlled and field conditions. Salicornia europaea seeds, inoculated with Brevibacterium casei EB3 and Pseudomonas oryzihabitans RL18, were grown in controlled laboratory experiments and in a natural field setting. The metabolite composition of the aboveground tissues was analyzed using GC-MS and UHPLC-MS. PGPB inoculation promoted a reconfiguration in plant metabolism in both environments. Under controlled laboratory conditions, inoculation contributed to increased biomass production and the reinforcement of immune responses by significantly increasing the levels of unsaturated fatty acids, sugars, citric acid, acetic acid, chlorogenic acids, and quercetin. In field conditions, the inoculated plants exhibited a distinct phytochemical profile, with increased glucose, fructose, and phenolic compounds, especially hydroxybenzoic acid, quercetin, and apigenin, alongside decreased unsaturated fatty acids, suggesting higher stress levels. The metabolic response shifted from growth enhancement to stress resistance in the latter context. As a common pattern to both laboratory and field conditions, biopriming induced metabolic reprogramming towards the expression of apigenin, quercetin, formononetin, caffeic acid, and caffeoylquinic acid, metabolites that enhance the plant's tolerance to abiotic and biotic stress. This study unveils the intricate metabolic adaptations of Salicornia europaea under controlled and field conditions, highlighting PGPB's potential to redesign the metabolite profile of the plant. Elevated-stress-related metabolites may fortify plant defense mechanisms, laying the groundwork for stress-resistant crop development through PGPB-based inoculants, especially in saline agriculture.

2.
Gastroenterol Hepatol ; : 502228, 2024 Jul 08.
Artículo en Inglés, Español | MEDLINE | ID: mdl-38986841

RESUMEN

BACKGROUND: Gallstone disease (GD) is no longer an exclusive condition of adulthood, and its prevalence is increasing in pediatric age. The management and the extent of the etiological investigation of GD in children and adolescents remains controversial. This study aimed to analyze the difficulties in the work-up and management of pediatric GD patients. METHODS: A retrospective study performed in a single tertiary center enrolled sixty-five patients with GD followed from January 2014 to June 2021. Patients were categorized conveniently according to their age at diagnosis: Group A (<10years, n=35) and Group B (≥10years, n=30). We analyzed demographic, clinical and laboratory data, ultrasonographic findings at presentation, therapeutics and complications. RESULTS: Symptoms were more frequent in patients >10years old (p=0.001). Cholecystectomy was performed in 31 patients (47.7%). A multivariate regression logistic model identified the age >10years (OR=6.440, p=0.005) and underlying entities (OR=6.823, p=0.017) as independent variables to perform surgery. Spontaneous resolution of GD was more common in children <2years old. A multivariate regression logistic model showed a trend for those >10years old to develop more complications. Two out of 18 patients were diagnosed with ABCB4 gene mutations in heterozygosity. CONCLUSIONS: Decision-making on cholecystectomy remains challenging in asymptomatic patients. Identifying predictive factors for the development of complications has proven difficult. However, we found a trend toward the development of complications in individuals older than 10years.

3.
Cureus ; 16(6): e61579, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38962604

RESUMEN

Central venous catheter (CVC) insertion is a routine procedure in the management of critically ill patients. We report a clinical case of inadvertent placement of an internal jugular vein CVC into the right pleural cavity, despite employing clinical and imaging-based techniques to ensure proper catheter positioning. Infusion of fluids and vasopressors through this misplaced catheter led to hypertensive pleural effusion and subsequent cardiorespiratory arrest. Return of spontaneous circulation was achieved after two cycles of cardiopulmonary resuscitation. While multiple imaging modalities are recommended for confirming appropriate CVC placement, each method has inherent limitations. This case highlights the imperative need for a high index of suspicion to avert such complications and pretends to review some of each method's limitations.

4.
Int J Gynaecol Obstet ; 166(1): 80-89, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38706411

RESUMEN

OBJECTIVE: The present study aimed to evaluate the association between syphilis in pregnancy and low birth weight, small for gestational age, and preterm birth. METHODS: This longitudinal study used Brazilian National Information System for livebirths (SINASC) linked to the gestational syphilis cases from Notifiable Diseases Information System (SINAN) from 2011 to 2017. Descriptive statistics and logistic regression were used to compare the birth outcomes of pregnant women with and without syphilis. The study protocol was approved by the Research Ethics Committee of the Institute of Collective Health of the Federal University of Bahia (CAAE: registration no. 18022319.4.0000.5030). RESULTS: A total of 17 930 817 live births were included in the study. Of these, 155 214 (8.7/1000) were exposed to syphilis during pregnancy. Maternal syphilis increased the odds of low birth weight (aOR 1.88, 95% CI: 1.85-1.91), small for gestational age (aOR 1.53, 95% CI: 1.51-1.56), and preterm birth (aOR 1.35, 95% CI: 1.33-1.37). Higher odds were observed for pregnant women with VDRL titer ≥64 and untreated maternal syphilis when compared to mothers without syphilis. Analysis stratified by prenatal care showed higher odds for all adverse birth outcomes for mothers attending ≤6 prenatal appointments. CONCLUSION: Our findings showed a strong association between gestational syphilis and adverse birth outcomes with increased odds observed among women with higher VDRL titers, lack of treatment, and fewer prenatal appointments. These results highlight the need for adequate screening and treatment for gestational syphilis during pregnancy to mitigate the risk of adverse birth outcomes.


Asunto(s)
Recién Nacido de Bajo Peso , Recién Nacido Pequeño para la Edad Gestacional , Complicaciones Infecciosas del Embarazo , Nacimiento Prematuro , Sífilis , Humanos , Embarazo , Femenino , Brasil/epidemiología , Complicaciones Infecciosas del Embarazo/epidemiología , Estudios Longitudinales , Adulto , Nacimiento Prematuro/epidemiología , Sífilis/epidemiología , Recién Nacido , Adulto Joven , Resultado del Embarazo/epidemiología , Modelos Logísticos
5.
J Fish Biol ; 105(1): 153-165, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38654442

RESUMEN

This study describes Lipogenys hyalinumvelum, a new species of the genus Lipogenys found on the Portuguese coast on the northeastern Atlantic during a crustacean survey. Information on the classification history and known distribution of the genus Lipogenys is provided. Dichotomous keys to the genera of Notacanthidae and the species of Lipogenys, based on morphology, are provided. The specimens were analysed using both morphological and molecular methods, including DNA sequencing of the COI and 16S genes. The distinct genetic characteristics support the recognition of the present specimens as a new species. The hyaline color of the flap at the posterior edge of the operculum is a characteristic that differentiates L. hyalinumvelum from Lipogenys gillii and provides the etymology of the species name.


Asunto(s)
Anguilas , Animales , Océano Atlántico , Anguilas/genética , Anguilas/anatomía & histología , Anguilas/clasificación , Filogenia , Portugal , Análisis de Secuencia de ADN , Masculino , Femenino , Complejo IV de Transporte de Electrones/genética
6.
Cells ; 13(8)2024 Apr 09.
Artículo en Inglés | MEDLINE | ID: mdl-38667269

RESUMEN

Fabry Disease (FD) is one of the most prevalent lysosomal storage disorders, resulting from mutations in the GLA gene located on the X chromosome. This genetic mutation triggers glo-botriaosylceramide (Gb-3) buildup within lysosomes, ultimately impairing cellular functions. Given the role of lysosomes in immune cell physiology, FD has been suggested to have a profound impact on immunological responses. During the past years, research has been focusing on this topic, and pooled evidence strengthens the hypothesis that Gb-3 accumulation potentiates the production of pro-inflammatory mediators, revealing the existence of an acute inflammatory process in FD that possibly develops to a chronic state due to stimulus persistency. In parallel, extracellular vesicles (EVs) have gained attention due to their function as intercellular communicators. Considering EVs' capacity to convey cargo from parent to distant cells, they emerge as potential inflammatory intermediaries capable of transporting cytokines and other immunomodulatory molecules. In this review, we revisit the evidence underlying the association between FD and altered immune responses and explore the potential of EVs to function as inflammatory vehicles.


Asunto(s)
Exosomas , Enfermedad de Fabry , Inflamación , Enfermedad de Fabry/genética , Enfermedad de Fabry/metabolismo , Enfermedad de Fabry/patología , Humanos , Inflamación/patología , Exosomas/metabolismo , Animales , Vesículas Extracelulares/metabolismo
7.
Front Oncol ; 14: 1380648, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38606091

RESUMEN

Introduction: In monoclonal B cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL), the expansion of malignant B cells disrupts the normal homeostasis and interactions between B cells and T cells, leading to immune dysregulation. CD20+ T cells are a subpopulation of T cells that appear to be involved in autoimmune diseases and cancer. Methods: Here, we quantified and phenotypically characterized CD20+ T cells from MBL subjects and CLL patients using flow cytometry and correlated our findings with the B-cell receptor mutational status and other features of the disease. Results and discussion: CD20+ T cells were more represented within the CD8+ T cell compartment and they showed a predominant memory Tc1 phenotype. CD20+ T cells were less represented in MBL and CLL patients vs healthy controls, particularly among those with unmutated IGVH gene. The expansion of malignant B cells was accompanied by phenotypic and functional changes in CD20+ T cells, including an increase in follicular helper CD4+ CD20+ T cells and CD20+ Tc1 cells, in addition to the expansion of the TCR Vß 5.1 in CD4+ CD20+ T cells in CLL.

8.
BMC Pediatr ; 24(1): 103, 2024 Feb 10.
Artículo en Inglés | MEDLINE | ID: mdl-38341551

RESUMEN

BACKGROUND: The literature contains scarce data on inequalities in growth trajectories among children born to mothers of diverse ethnoracial background in the first 5 years of life. OBJECTIVE: We aimed to investigate child growth according to maternal ethnoracial group using a nationwide Brazilian database. METHODS: A population-based retrospective cohort study employed linked data from the CIDACS Birth Cohort and the Brazilian Food and Nutrition Surveillance System (SISVAN). Children born at term, aged 5 years or younger who presented two or more measurements of length/height (cm) and weight (kg) were followed up between 2008 and 2017. Prevalence of stunting, underweight, wasting, and thinness were estimated. Nonlinear mixed effect models were used to estimate childhood growth trajectories, among different maternal ethnoracial groups (White, Asian descent, Black, Pardo, and Indigenous), using the raw measures of weight (kg) and height (cm) and the length/height-for-age (L/HAZ) and weight-for-age z-scores (WAZ). The analyses were also adjusted for mother's age, educational level, and marital status. RESULTS: A total of 4,090,271 children were included in the study. Children of Indigenous mothers exhibited higher rates of stunting (26.74%) and underweight (5.90%). Wasting and thinness were more prevalent among children of Pardo, Asian, Black, and Indigenous mothers than those of White mothers. Regarding children's weight (kg) and length/height (cm), those of Indigenous, Pardo, Black, and Asian descent mothers were on average shorter and weighted less than White ones. Regarding WAZ and L/HAZ growth trajectories, a sharp decline in average z-scores was evidenced in the first weeks of life, followed by a period of recovery. Over time, z-scores for most of the subgroups analyzed trended below zero. Children of mother in greater social vulnerability showed less favorable growth. CONCLUSION: We observed racial disparities in nutritional status and childhood growth trajectories, with children of Indigenous mothers presenting less favorable outcomes compared to their White counterparts. The strengthening of policies aimed at protecting Indigenous children should be urgently undertaken to address systematic ethnoracial health inequalities.


Asunto(s)
Estado Nutricional , Delgadez , Niño , Femenino , Humanos , Lactante , Delgadez/epidemiología , Brasil/epidemiología , Estudios Retrospectivos , Trastornos del Crecimiento/epidemiología
9.
J Clin Pharmacol ; 64(1): 103-110, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37611322

RESUMEN

The therapeutic approach to inflammatory bowel disease (IBD) is complex, often involving multiple pharmacologic classes. We aimed to evaluate the prevalence of drug-related adverse reactions (ARs) associated with therapies used in pediatric IBD. We conducted a retrospective study of pediatric patients with IBD followed in a tertiary hospital from 2010 to 2022. Ninety-nine patients were included (62.6% were male), with a median age at diagnosis of 13 years (interquartile range [IQR] 11-15 years). The majority had Crohn's disease (69.7%), followed by ulcerative colitis (21.2%) and unclassified IBD (9.1%). The most prescribed therapies were: immunomodulators (n = 75, 75.8%), exclusive enteral nutrition (n = 61, 61.6%), and biologics (n = 58, 58.6%). During a median follow-up time of 31 months (IQR 11-51 months), the incidence of ARs was 16.2% (16 ARs occurred in 14 patients). The main drug involved was azathioprine (12/16) and the most frequent AR was hepatitis (5/16). Drug discontinuation was necessary in all but 1 case. Of the ARs recorded, 75% were mild to moderate and 81.3% did not require specific treatment; all patients had clinical and/or analytical normalization. There was a positive association between the cumulative number of prescribed drugs and the occurrence of ARs (P = .044). The incidence of ARs was similar to the rates reported in the few existing previous studies. The majority of ARs were mild, but implied the discontinuation of therapy or dose reduction, with a possible impact on disease control.


Asunto(s)
Colitis Ulcerosa , Enfermedad de Crohn , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos , Enfermedades Inflamatorias del Intestino , Humanos , Masculino , Niño , Adolescente , Femenino , Estudios Retrospectivos , Enfermedades Inflamatorias del Intestino/tratamiento farmacológico , Colitis Ulcerosa/tratamiento farmacológico , Enfermedad de Crohn/tratamiento farmacológico , Azatioprina/efectos adversos , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología
10.
Rev. APS (Online) ; 26(Único): e262338999, 22/11/2023.
Artículo en Portugués | LILACS, BDENF | ID: biblio-1567070

RESUMEN

Introdução: O presente estudo avaliou a correlação entre cobertura vacinal e mortalidade por covid-19 em Santa Catarina, a fim de evidenciar o comportamento da imunização coletiva para o controle da pandemia da covid-19. Métodos: Foi realizado um estudo ecológico que incluiu os casos confirmados e óbitos por covid-19 em Santa Catarina entre 12/03/2020 e 03/01/2022, além da cobertura vacinal de covid-19 de 18/01/2021 a 31/12/2021. A análise de dados foi realizada em dois períodos para posterior avaliação comparativa, sendo obtidas taxas mensais. Resultados: O maior número de casos de covid-19 relacionou-se ao sexo feminino (52,2%) e à população de 20 a 49 anos (62,1%). O maior número de óbitos foi atrelado ao sexo masculino (57,8%) e à população acima de 60 anos (68,5%). As macrorregiões Foz do Rio Itajaí e Sul apresentaram as maiores taxas de incidência e mortalidade. Ao comparar os dois períodos, houve redução da taxa de incidência (58,3%) e mortalidade (55,6%), concomitante ao aumento de 50% no número de vacinados com o esquema completo. Conclusão: Observou-se uma correlação negativa (r = - 0,05) entre cobertura vacinal e taxa de mortalidade, evidenciando que a mortalidade pela covid-19 diminuiu à medida que a vacinação foi aumentando (p = 0,08).


Introduction: The present study evaluated the correlation between vaccination coverage and mortality from covid-19 in Santa Catarina, in order to demonstrate the behavior of collective immunization for the control of the covid-19 pandemic. Methods: An ecological study was carried out that included confirmed cases and deaths by covid-19 in Santa Catarina between 03/12/2020 and 01/03/2022, in addition to the covid-19 vaccine coverage from 01/18/2021 to 31 /12/2021. Data analysis was performed in two periods for later comparative evaluation, with monthly rates being obtained. Results: The highest number of cases of covid-19 was related to the female sex (52.2%) and the population aged 20 to 49 years (62.1%). The largest number of deaths was linked to males (57.8%) and the population over 60 years (68.5%). The macro-regions Foz do Rio Itajaí and Sul had the highest incidence and mortality rates. When comparing the two periods, there was a reduction in the incidence rate (58.3%) and mortality (55.6%), concomitant with a 50% increase in the number of vaccinated with the complete regimen. Conclusion: There was a negative correlation (r = - 0.05) between vaccination coverage and mortality rate, showing that mortality from covid-19 decreased as vaccination increased (p = 0.08).

11.
J Appl Microbiol ; 134(8)2023 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-37587019

RESUMEN

AIMS: We aim at understanding the effect of domestication on the endophytic microbiome and metabolome of Salicornia europaea and collecting evidence on the potential role of microbial populations and metabolites in the adaptation of plants to different ecological contexts (wild vs crops). METHODS AND RESULTS: Samples were collected from a natural salt marsh (wild) and an intensive crop field (crop). High-throughput sequencing of the 16S rRNA gene, gas chromatography-mass spectrometry (GC-MS) and ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) were used to analyze the endophytic bacterial communities and the metabolite profiles of S. europaea roots, respectively. The elemental analysis of the plant shoots was performed by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS).Overall, significant differences were found between the microbiome of wild and cultivated plants. The later showed a higher relative abundance of the genera Erythrobacter, Rhodomicrobium, and Ilumatobacter than wild plants. The microbiome of wild plants was enriched in Marinobacter, Marixanthomonas, and Thalassospira. The metabolite profile of crop plants revealed higher amounts of saturated and non-saturated fatty acids and acylglycerols. In contrast, wild plants contained comparatively more carbohydrates and most macroelements (i.e. Na, K, Mg, and Ca). CONCLUSIONS: There is a strong correlation between plant metabolites and the endosphere microbiome of S. europaea. In wild populations, plants were enriched in carbohydrates and the associated bacterial community was enriched in genes related to primary metabolic pathways such as nitrogen metabolism and carbon fixation. The endosphere microbiome of crop plants was predicted to have higher gene counts related to pathogenesis. Crop plants also exhibited higher amounts of azelaic acid, an indicator of exposure to phytopathogens.


Asunto(s)
Chenopodiaceae , Domesticación , Cromatografía Liquida , ARN Ribosómico 16S/genética , Espectrometría de Masas en Tándem , Metaboloma
12.
Acta Med Port ; 36(7-8): 517-526, 2023 Jul 03.
Artículo en Portugués | MEDLINE | ID: mdl-37429590

RESUMEN

The treatment of multiple myeloma has profoundly changed with the introduction of several innovative therapies. The optimization of therapeutic sequencing through the combined use of the various drugs developed in recent years and the attention given to the characteristics of patients have allowed the reduction of toxicities and increased survival and quality of life of patients with multiple myeloma. These treatment recommendations from the Portuguese Multiple Myeloma Group offer guidance for first-line treatment and progression/relapse situations. These recommendations are given highlighting the data that justify each choice and referring to the respective levels of evidence that support these options. Whenever possible, the respective national regulatory framework is presented. These recommendations constitute an advance towards the best treatment of multiple myeloma in Portugal.


O tratamento do mieloma múltiplo tem sido amplamente alterado com introdução de várias terapêuticas inovadoras. A otimização da sequenciação terapêutica através do uso combinado dos vários fármacos desenvolvidos nos últimos anos e a atenção dada às características dos doentes têm permitido diminuir toxicidades e aumentar a sobrevivência dos doentes, bem como aumentar a sua qualidade de vida. As presentes recomendações terapêuticas do Grupo Português do Mieloma Múltiplo oferecem orientações para o tratamento de primeira linha e progressão/recaída. As recomendações são fundamentadas evidenciando os dados que justificam cada escolha e referindo os respetivos níveis de evidência que suportam essas opções. Sempre que possível é apresentado o respetivo enquadramento regulamentar nacional. Estas recomendações constituem um avanço para o melhor tratamento do mieloma múltiplo em Portugal.


Asunto(s)
Mieloma Múltiple , Humanos , Mieloma Múltiple/tratamiento farmacológico , Portugal , Calidad de Vida , Recurrencia Local de Neoplasia/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
13.
Am J Med Genet A ; 191(7): 1963-1967, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37134188

RESUMEN

Neurofibromatosis type 1 (NF-1) is a multisystem genetic disorder affecting the NF1 tumor suppressor gene. Patients typically develop superficial (cutaneous) and internal (plexiform) neurofibromas. The latter may rarely involve the liver locating in the hilum and encasing the portal vessels, leading to portal hypertension. Vascular abnormalities (NF-I vasculopathy) are a well-recognized manifestation of NF-1. Although the pathogenesis is not well-known, NF-1 vasculopathy involves arteries of both peripheral and cerebral territories, with venous thrombosis being exceptionally reported. Portal venous thrombosis (PVT) is the leading cause of portal hypertension in childhood and has been associated with several risk factors. Nevertheless, predisposing conditions remain unknown in more than 50% of the cases. The treatment options are limited, and its management is nonconsensual in the pediatric age. We report the case of a 9-year-old boy with clinically and genetically confirmed NF-1, diagnosed with portal venous cavernoma after an episode of gastrointestinal bleeding. There were no identifiable risk factors for PVT and intrahepatic peri-hilar plexiform neurofibroma was excluded by MRI imaging. To the best of our knowledge, this is the first report of PVT in NF-1. We speculate that NF-1 vasculopathy may have been a pathogenic factor, or instead, it was a fortuitous association.


Asunto(s)
Hipertensión Portal , Neurofibromatosis 1 , Enfermedades Vasculares , Trombosis de la Vena , Masculino , Humanos , Niño , Neurofibromatosis 1/complicaciones , Neurofibromatosis 1/diagnóstico , Neurofibromatosis 1/genética , Hipertensión Portal/complicaciones , Vena Porta , Trombosis de la Vena/genética , Trombosis de la Vena/complicaciones , Enfermedades Vasculares/patología
14.
Curr HIV Res ; 21(2): 140-146, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37078357

RESUMEN

BACKGROUND: Previous studies have implicated human adenovirus 36 (Adv36) as a potential contributor to overweight and obesity. People living with HIV have an altered body composition compared to healthy individuals. There is still no evidence to confirm the relationship of Adv36 as one of the causes of lipohypertrophy. The main objective of this study was to verify the viral Adv36 infection as a factor associated with the presence of lipohypertrophy in HIV-infected individuals. METHODS: A case-control study on people with HIV treated at a specialized public health service in southern Brazil. Subjects underwent interviews, diagnostic tests, and anthropometry to determine lipodystrophy and its classification. Demographic and clinical data were examined to investigate the presence of Adv36. The cases were participants with lipohypertrophy, and the controls were eutrophic participants. RESULTS: 101 participants were included (38 cases and 63 controls), and the frequency of Adv36 infection was 10.9%. There was a statistically significant association between lipohypertrophy and the female sex (p < 0.001), and a trend for the presence of Adv36 (p = 0.059) and lipohypertrophy. After adjustment for confounders, Adv36 has not considered an independent risk factor for lipohypertrophy. Lower levels of glucose were associated with Adv36 infection. CONCLUSION: There was a significant association between lipohypertrophy and the female sex, and no association with lipohypertrophy and Adv36, perhaps due to the small sample size.


Asunto(s)
Coinfección , Infecciones por VIH , Lipodistrofia , Humanos , Femenino , Adenoviridae , Estudios de Casos y Controles , Coinfección/epidemiología , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico
15.
J Appl Microbiol ; 134(3)2023 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-36841232

RESUMEN

AIM: The objective of the work was to assess the effect of biostimulation with selected plant growth-promoting bacteria on growth and metabolite profile of Salicornia europaea. METHODS AND RESULTS: Salicornia europaea seeds were inoculated with different combinations of plant growth-promoting bacteria Brevibacterium casei EB3, Pseudomonas oryzihabitans RL18, and Bacillus aryabhattai SP20. Plants germinated from inoculated seeds were grown either in laboratory conditions or in a saline crop field. Fresh and dry weight were determined at the end of the experiment, for biomass quantification. The microbiological quality of fresh shoots for human consumption as salad greens was assessed, and the persistence of the inoculated strains in the plant rhizosphere was confirmed by next-generation sequencing (Illumina) of the 16S rDNA gene. The primary metabolite profile of biostimulated plants was characterized by GC-TOF-MS.In laboratory conditions, inoculation with the two strains Br. casei EB3 and Ps. oryzihabitans RL18 caused the most significant increase in biomass production (fresh and dry weight), and caused a shift in the central metabolic pathways of inoculated plants toward amino acid biosynthesis. In the field experiment, no significant biostimulation effect was detected with any of the tested inoculants. Seed inoculation had no significant effect on the microbiological quality of the edible parts. The persistence of inoculants was confirmed in both experiments. CONCLUSIONS: Manipulation of the plant microbiome can trigger primary metabolic reconfiguration and modulate the plant metabolism while promoting plant growth.


Asunto(s)
Bacterias , Chenopodiaceae , Humanos , Desarrollo de la Planta , Semillas , Productos Agrícolas , Chenopodiaceae/metabolismo , Chenopodiaceae/microbiología , Raíces de Plantas/microbiología , Rizosfera , Microbiología del Suelo
16.
PLoS One ; 18(2): e0281323, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36757928

RESUMEN

Several studies applying Machine Learning to deception detection have been published in the last decade. A rich and complex set of settings, approaches, theories, and results is now available. Therefore, one may find it difficult to identify trends, successful paths, gaps, and opportunities for contribution. The present literature review aims to provide the state of research regarding deception detection with Machine Learning. We followed the PRISMA protocol and retrieved 648 articles from ACM Digital Library, IEEE Xplore, Scopus, and Web of Science. 540 of them were screened (108 were duplicates). A final corpus of 81 documents has been summarized as mind maps. Metadata was extracted and has been encoded as Python dictionaries to support a statistical analysis scripted in Python programming language, and available as a collection of Jupyter Lab Notebooks in a GitHub repository. All are available as Jupyter Lab Notebooks. Neural Networks, Support Vector Machines, Random Forest, Decision Tree and K-nearest Neighbor are the five most explored techniques. The studies report a detection performance ranging from 51% to 100%, with 19 works reaching accuracy rate above 0.9. Monomodal, Bimodal, and Multimodal approaches were exploited and achieved various accuracy levels for detection. Bimodal and Multimodal approaches have become a trend over Monomodal ones, although there are high-performance examples of the latter. Studies that exploit language and linguistic features, 75% are dedicated to English. The findings include observations of the following: language and culture, emotional features, psychological traits, cognitive load, facial cues, complexity, performance, and Machine Learning topics. We also present a dataset benchmark. Main conclusions are that labeled datasets from real-life data are scarce. Also, there is still room for new approaches for deception detection with Machine Learning, especially if focused on languages and cultures other than English-based. Further research would greatly contribute by providing new labeled and multimodal datasets for deception detection, both for English and other languages.


Asunto(s)
Redes Neurales de la Computación , Proyectos de Investigación , Publicaciones , Aprendizaje Automático , Decepción
17.
Metabolites ; 13(2)2023 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-36837899

RESUMEN

Salicornia perennis is a halophyte belonging to the botanical subfamily Salicornioideae that forms extensive perennial salt marsh patches. This subfamily has excellent potential, still unexplored, as a source of food, medicine, and phytoremediation. This study aimed to evaluate the lipophilic composition of the Salicornia perennis different organs inhabiting salt marshes of Ria de Aveiro under different stress regimes. For this purpose, the lipophilic content was extracted with hexane and subsequent GC-MS analysis of the extracts for each plant organ, which was collected in three different salt marshes of the Ria de Aveiro. High sugar content was detected in the stems, whereas in fruiting articles, the higher content was in fatty acids. Shorter-chain organic acids were concentrated in the stems and vegetative articles; waxes were detected in greater quantity in photosynthetic organs. More or less stressful environments induce changes in the ratio and composition of molecules, such as acclimatization and oxidative stress reduction strategies; for example, fatty acid content was higher in plants subjected to a higher stress regime. These data contribute to understand the metabolic pathways of the species under study, suggesting new research approaches to its potential as food, medicine, and phytoremediator.

18.
Eur J Pediatr ; 182(4): 1601-1609, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36697884

RESUMEN

Children with elevated liver enzymes are occasionally discovered through laboratory work-up from different clinical scenarios. Although the majority will have transient and/or benign conditions, a subgroup will have underlying liver disorders. The differential diagnosis is broad and therefore, a systematic approach is of utmost importance. In this article, we reviewed the most recent and relevant literature to provide a comprehensive overview of the main disease processes that cause hypertransaminasemia in children. Ultimately, we propose a practical stepwise approach to guide primary care physicians in the evaluation of abnormal liver enzymes in asymptomatic children. The first step is to obtain a complete history along with a thorough physical examination to exclude red flags, which should dictate urgent consultation with a paediatric gastroenterologist or hepatologist.  Conclusion: Hypertransaminasemia is a challenging scenario in the primary care setting. The aetiology can be broad, ranging from hepatic and extrahepatic to transient versus chronic liver disease. Timely referral to a specialised centre is of paramount importance for conducting targeted research and to not miss the chance of identifying a progressive, but still asymptomatic, treatable liver disease. What is Known: • Elevated liver enzyme is a challenging scenario in the primary care setting. • There are few studies guiding the evaluation of asymptomatic hypertransaminasemia in the paediatric population and a standardised approach is lacking. What is New: • We propose a practical stepwise approach to guide primary care physicians in the evaluation of abnormal liver enzymes.


Asunto(s)
Hepatopatías , Humanos , Niño , Hepatopatías/diagnóstico , Examen Físico , Diagnóstico Diferencial , Derivación y Consulta , Enfermedades Asintomáticas , Atención Primaria de Salud
19.
Artículo en Inglés | MEDLINE | ID: mdl-36674352

RESUMEN

Falls are a major problem among older adults worldwide. Early detection of risk factors is important to decrease the burden of falls. The "Fall Risk Questionnaire" (FRQ) is a screening tool used to assess personal fall risk awareness in older populations, and it is also used as a behavior change tool. The aim of the present study was to undertake a cultural and linguistic adaptation of the FRQ to allow its use in the Portuguese population. To achieve this, we used the sequential method proposed by Beaton and colleagues. Statistical analysis was conducted by computing the intraclass correlation coefficient and Cronbach's alpha score for intra-observer reliability. The panel revision demonstrated high concordance for all assessed items. The pretesting results indicated that, in general, the FRQ­Portuguese Version (FRQ-VP) was well accepted, and all items were adequate and easy to comprehend. The ICC and Cronbach's alpha scores indicated high consistency between assessments (p < 0.01; alfa = 0.992). The FRQ-VP seemed to have good reliability and internal consistency. Because the definition of a fall experience may not be clear to the older population, a careful explanation of this item can lead to a better score computation.


Asunto(s)
Lingüística , Traducciones , Humanos , Anciano , Reproducibilidad de los Resultados , Portugal , Encuestas y Cuestionarios , Psicometría/métodos , Comparación Transcultural
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