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1.
Nature ; 615(7953): 652-659, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36890232

RESUMO

Increasing the proportion of locally produced plant protein in currently meat-rich diets could substantially reduce greenhouse gas emissions and loss of biodiversity1. However, plant protein production is hampered by the lack of a cool-season legume equivalent to soybean in agronomic value2. Faba bean (Vicia faba L.) has a high yield potential and is well suited for cultivation in temperate regions, but genomic resources are scarce. Here, we report a high-quality chromosome-scale assembly of the faba bean genome and show that it has expanded to a massive 13 Gb in size through an imbalance between the rates of amplification and elimination of retrotransposons and satellite repeats. Genes and recombination events are evenly dispersed across chromosomes and the gene space is remarkably compact considering the genome size, although with substantial copy number variation driven by tandem duplication. Demonstrating practical application of the genome sequence, we develop a targeted genotyping assay and use high-resolution genome-wide association analysis to dissect the genetic basis of seed size and hilum colour. The resources presented constitute a genomics-based breeding platform for faba bean, enabling breeders and geneticists to accelerate the improvement of sustainable protein production across the Mediterranean, subtropical and northern temperate agroecological zones.


Assuntos
Produtos Agrícolas , Diploide , Variação Genética , Genoma de Planta , Genômica , Melhoramento Vegetal , Proteínas de Plantas , Vicia faba , Cromossomos de Plantas/genética , Produtos Agrícolas/genética , Produtos Agrícolas/metabolismo , Variações do Número de Cópias de DNA/genética , DNA Satélite/genética , Amplificação de Genes/genética , Genes de Plantas/genética , Variação Genética/genética , Genoma de Planta/genética , Estudo de Associação Genômica Ampla , Geografia , Melhoramento Vegetal/métodos , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Recombinação Genética , Retroelementos/genética , Sementes/anatomia & histologia , Sementes/genética , Vicia faba/anatomia & histologia , Vicia faba/genética , Vicia faba/metabolismo
2.
J Nutr ; 154(4): 1165-1174, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38311065

RESUMO

BACKGROUND: The recommended transition toward more plant-based diets, particularly containing legumes, requires a wider knowledge of plant protein bioavailability. Faba beans are cultivated at different latitudes and are used increasingly in human nutrition. OBJECTIVES: We aimed to assess the nutritional quality of faba bean protein in healthy volunteers equipped with an intestinal tube to implement the ileal 15N balance method. METHODS: Nine volunteers completed the study (7 males, 2 females, aged 33 ± 10 y, BMI: 24.7 ± 2.6 kg/m2). They were equipped with a nasoileal tube. After fasting overnight, they ingested a test meal consisting of cooked mash of dehulled faba bean seeds (20 g protein per serving of approximately 250 g) intrinsically labeled with 15N. Samples of ileal contents, plasma, and urine were collected over an 8-h postprandial period. Undigested nitrogen (N) and amino acids (AAs) were determined using isotopic MS, and subsequently, ileal digestibility and digestible indispensable amino acid score (DIAAS) were calculated. The measurement of postprandial deamination allowed calculation of the net postprandial protein utilization (NPPU). RESULTS: The ileal N digestibility was 84.1% ± 7.7%. Postprandial deamination represented 19.2% ± 3.6% of ingested N, and the NPPU was 64.7% ± 9.7%. The ileal digestibility of individual AAs varied from 85.1% ± 13.7% for histidine to 94.2% ± 3.6% for glutamine + glutamate. The mean AA digestibility was ∼6 percentage points higher than the digestibility of N, reaching 89.8% ± 5.9%, whereas indispensable AA digestibility was 88.0% ± 7.3%. Histidine and tryptophan were the first limiting AAs [DIAAS = 0.77 (calculated by legume-specific N-to-protein conversion factor 5.4); 0.67 (by default factor 6.25)]. Sulfur AAs were limiting to a lesser extent [DIAA ratio = 0.94 (N × 5.4); 0.81 (N × 6.25)]. CONCLUSIONS: Protein ileal digestibility of cooked, dehulled faba beans in humans was moderate (<85%), but that of AAs was close to 90%. Overall protein quality was restricted by the limited histidine and tryptophan content. This trial was registered at clinicaltrials.gov as NCT05047757.


Assuntos
Fabaceae , Vicia faba , Feminino , Humanos , Masculino , Aminoácidos/metabolismo , Ração Animal , Dieta , Proteínas Alimentares/metabolismo , Digestão , Fabaceae/química , Histidina/metabolismo , Íleo/metabolismo , Triptofano/metabolismo , Vicia faba/metabolismo
3.
Physiol Plant ; 176(3): e14404, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38922894

RESUMO

Soil acidity is a global issue; soils with pH <4.5 are widespread in Europe. This acidity adversely affects nutrient availability to plants; pH levels <5.0 lead to aluminum (Al3+) toxicity, a significant problem that hinders root growth and nutrient uptake in faba bean (Vicia faba L.) and its symbiotic relationship with Rhizobium. However, little is known about the specific traits and tolerant genotypes among the European faba beans. This study aimed to identify response traits associated with tolerance to root zone acidity and Al3+ toxicity and potentially tolerant genotypes for future breeding efforts. Germplasm survey was conducted using 165 genotypes in a greenhouse aquaponics system. Data on the root and shoot systems were collected. Subsequently, 12 genotypes were selected for further phenotyping in peat medium, where data on physiological and morphological parameters were recorded along with biochemical responses in four selected genotypes. In the germplasm survey, about 30% of genotypes showed tolerance to acidity and approximately 10% exhibited tolerance to Al3+, while 7% showed tolerance to both. The phenotyping experiment indicated diverse morphological and physiological responses among treatments and genotypes. Acid and Al3+ increased proline concentration. Interaction between genotype and environment was observed for ascorbate peroxidase activity, malondialdehyde, and proline concentrations. Genomic markers associated with acidity and acid+Al3+-toxicity tolerances were identified using GWAS analysis. Four faba bean genotypes with varying levels of tolerance to acidity and Al3+ toxicity were identified.


Assuntos
Alumínio , Genótipo , Fenótipo , Vicia faba , Vicia faba/genética , Vicia faba/efeitos dos fármacos , Vicia faba/crescimento & desenvolvimento , Vicia faba/metabolismo , Alumínio/toxicidade , Solo/química , Concentração de Íons de Hidrogênio , Raízes de Plantas/efeitos dos fármacos , Raízes de Plantas/genética , Raízes de Plantas/metabolismo , Raízes de Plantas/crescimento & desenvolvimento , Prolina/metabolismo , Adaptação Fisiológica/genética , Adaptação Fisiológica/efeitos dos fármacos , Ácidos/metabolismo
4.
Ann Bot ; 131(3): 533-544, 2023 04 04.
Artigo em Inglês | MEDLINE | ID: mdl-36655613

RESUMO

BACKGROUND AND AIMS: Limiting maximum transpiration rate (TR) under high vapour pressure deficit (VPD) works as a water conservation strategy. While some breeding programmes have incorporated this trait into some crops to boost yields in water-limited environments, its underlying physiological mechanisms and genetic regulation remain unknown for faba bean (Vicia faba). Thus, we aimed to identify genetic variation in the TR response to VPD in a population of faba bean recombinant inbred lines (RILs) derived from two parental lines with contrasting water use (Mélodie/2 and ILB 938/2). METHODS: Plants were grown in well-watered soil in a climate-controlled glasshouse with diurnally fluctuating VPD and light conditions. Whole plant transpiration was measured in a gas exchange chamber that tightly regulated VPD around the shoot under constant light, while whole-plant hydraulic conductance and its components (root and stem hydraulic conductance) were calculated from dividing TR by water potential gradients measured with a pressure chamber. KEY RESULTS: Although TR of Mélodie/2 increased linearly with VPD, ILB 938/2 limited its TR above 2.0 kPa. Nevertheless, Mélodie/2 had a higher leaf water potential than ILB 938/2 at both low (1.0 kPa) and high (3.2 kPa) VPD. Almost 90 % of the RILs limited their TR at high VPD with a break-point (BP) range of 1.5-3.0 kPa and about 10 % had a linear TR response to VPD. Thirteen genomic regions contributing to minimum and maximum transpiration, and whole-plant and root hydraulic conductance, were identified on chromosomes 1 and 3, while one locus associated with BP transpiration was identified on chromosome 5. CONCLUSIONS: This study provides insight into the physiological and genetic control of transpiration in faba bean and opportunities for marker-assisted selection to improve its performance in water-limited environments.


Assuntos
Vicia faba , Vicia faba/genética , Fenótipo , Folhas de Planta/fisiologia , Água , Transpiração Vegetal/genética , Pressão de Vapor
5.
Mol Breed ; 42(6): 35, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37312967

RESUMO

Chocolate spot (CS), caused by Botrytis fabae Sard., is an important threat to global faba bean production. Growing resistant faba bean cultivars is, therefore, paramount to preventing yield loss. To date, there have been no reported quantitative trait loci (QTL) associated with CS resistance in faba bean. The objective of this study was to identify genomic regions associated with CS resistance using a recombinant inbred line (RIL) population derived from resistant accession ILB 938. A total of 165 RILs from the cross Mélodie/2 × ILB 938/2 were genotyped and evaluated for CS reactions under replicated controlled climate conditions. The RIL population showed significant variation in response to CS resistance. QTL analysis identified five loci contributing to CS resistance on faba bean chromosomes 1 and 6, accounting for 28.4% and 12.5%, respectively, of the total phenotypic variance. The results of this study not only provide insight into disease-resistance QTL, but also can be used as potential targets for marker-assisted breeding in faba bean genetic improvement for CS resistance. Supplementary Information: The online version contains supplementary material available at 10.1007/s11032-022-01307-7.

6.
Photochem Photobiol Sci ; 18(2): 434-447, 2019 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-30629071

RESUMO

Blue light and UV radiation shape a plant's morphology and development, but accession-dependent responses under natural conditions are unclear. Here we tested the hypothesis that two faba bean (Vicia faba L.) accessions adapted to different latitudes and altitudes vary in their responses to solar blue and UV light. We measured growth, physiological traits, phenolic profiles and expression of associated genes in a factorial experiment combining two accessions (Aurora, a Swedish cultivar adapted to high latitude and low altitude; ILB938, from the Andean region of Colombia and Ecuador, adapted to low latitude and high altitude) and four filter treatments created with plastic sheets: 1. transparent as control; 2. attenuated short UV (290-350 nm); 3. attenuated UV (290-400 nm); 4. attenuated blue and UV light. In both accessions, the exclusion of blue and UV light increased plant height and leaf area, and decreased transcript abundance of ELONGATED HYPOCOTYL 5 (HY5) and TYROSINE AMINOTRANSFERASE 3 (TAT3). Blue light and short UV induced the accumulation of epidermal and whole-leaf flavonoids, mainly quercetins, and the responses in the two accessions were through different glycosides. Filter treatments did not affect kaempferol concentration, but there were more tri-glycosides in Aurora and di-glycosides in ILB938. Furthermore, fewer quercetin glycosides were identified in ILB938. The transcript abundance was consistently higher in Aurora than in ILB938 for all seven investigated genes: HY5, TAT3, CHALCONE SYNTHASE (CHS), CHALCONE ISOMERASE (CHI), DON-GLUCOSYLTRANSFERASE 1 (DOGT1), ABA INSENSITIVE 2 (ABI2), AUXIN-INDUCIBLE 2-27 (IAA5). The two largest differences in transcript abundance between the two accessions across treatments were 132-fold in CHS and 30-fold in DOGT1 which may explain the accession-dependent glycosylation patterns. Our findings suggest that agronomic selection for adaptation to high altitude may favour phenotypes with particular adaptations to the light environment, including solar UV and blue light.


Assuntos
Flavonoides/metabolismo , Regulação da Expressão Gênica de Plantas/efeitos da radiação , Luz Solar , Raios Ultravioleta , Vicia faba/metabolismo , Vicia faba/efeitos da radiação , Fenóis/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Vicia faba/genética
7.
Agron Sustain Dev ; 38(6): 63, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30873223

RESUMO

Grain legumes produce high-quality protein for food and feed, and potentially contribute to sustainable cropping systems, but they are grown on only 1.5% of European arable land. Low temporal yield stability is one of the reasons held responsible for the low proportion of grain legumes, without sufficient quantitative evidence. The objective of this study was to compare the yield stability of grain legumes with other crop species in a northern European context and accounting for the effects of scale in the analysis and the data. To avoid aggregation biases in the yield data, we used data from long-term field experiments. The experiments included grain legumes (lupin, field pea, and faba bean), other broad-leaved crops, spring, and winter cereals. Experiments were conducted in the UK, Sweden, and Germany. To compare yield stability between grain legumes and other crops, we used a scale-adjusted yield stability indicator that accounts for the yield differences between crops following Taylor's Power Law. Here, we show that temporal yield instability of grain legumes (30%) was higher than that of autumn-sown cereals (19%), but lower than that of other spring-sown broad-leaved crops (35%), and only slightly greater than spring-sown cereals (27%). With the scale-adjusted yield stability indicator, we estimated 21% higher yield stability for grain legumes compared to a standard stability measure. These novel findings demonstrate that grain legume yields are as reliable as those of other spring-sown crops in major production systems of northern Europe, which could influence the current negative perception on grain legume cultivation. Initiatives are still needed to improve the crops agronomy to provide higher and more stable yields in future.

8.
J Sci Food Agric ; 95(10): 2053-64, 2015 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-25242296

RESUMO

BACKGROUND: Boreal cropping systems are heavily focused on the production of small-grain cereals; to improve their resilience to climate change and to achieve food and feed security, diversification is needed. This study investigated the potential of faba bean, narrow-leafed lupin and lentil as protein crops in southern Finland, where faba bean is traditional but the other two are novel. RESULTS: Early cultivars of narrow-leafed lupin and lentil matured adequately. Protein concentration in faba bean was, at 32%, higher than the world average of 29%, while those of narrow-leafed lupin and lentil were close to their world averages. Protein yields decreased in the order faba bean > narrow-leafed lupin > lentil. Lipid content of faba bean and lentil was about 1.2% and that of narrow-leafed lupin about 5.5%, and fatty acid composition was largely oleic and linoleic in all three species. CONCLUSION: Both lentil and narrow-leafed lupin can be added to the range of feed and food crops produced at high latitudes in Europe. While faba bean produces the greatest protein yield and lysine concentration, the higher sulfur amino acid concentration in lupin, its oil content and its adaptation to acid, sandy soils not suitable for faba bean make it an attractive alternative.


Assuntos
Clima , Fabaceae/química , Fabaceae/fisiologia , Valor Nutritivo/fisiologia , Proteínas de Plantas/metabolismo , Agricultura , Finlândia , Proteínas de Plantas/química , Proteínas de Plantas/normas , Temperatura , Fatores de Tempo
9.
Theor Appl Genet ; 127(11): 2371-85, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25186169

RESUMO

KEY MESSAGE: We have identified QTLs for stomatal characteristics on chromosome II of faba bean by applying SNPs derived from M. truncatula , and have identified candidate genes within these QTLs using synteny between the two species. Faba bean (Vicia faba L.) is a valuable food and feed crop worldwide, but drought often limits its production, and its genome is large and poorly mapped. No information is available on the effects of genomic regions and genes on drought adaptation characters such as stomatal characteristics in this species, but the synteny between the sequenced model legume, Medicago truncatula, and faba bean can be used to identify candidate genes. A mapping population of 211 F5 recombinant inbred lines (Mélodie/2 × ILB 938/2) were phenotyped to identify quantitative trait loci (QTL) affecting stomatal morphology and function, along with seed weight, under well-watered conditions in a climate-controlled glasshouse in 2013 and 2014. Canopy temperature (CT) was evaluated in 2013 under water-deficit (CTd). In total, 188 polymorphic single nucleotide polymorphisms (SNPs), developed from M. truncatula genome data, were assigned to nine linkage groups that covered ~928 cM of the faba bean genome with an average inter-marker distance of 5.8 cM. 15 putative QTLs were detected, of which eight (affecting stomatal density, length and conductance and CT) co-located on chromosome II, in the vicinity of a possible candidate gene-a receptor-like protein kinase found in the syntenic interval of M. truncatula chromosome IV. A ribose-phosphate pyrophosphokinase from M. truncatula chromosome V, postulated as a possible candidate gene for the QTL for CTd, was found some distance away in the same chromosome. These results demonstrate that genomic information from M. truncatula can successfully be translated to the faba bean genome.


Assuntos
Estômatos de Plantas/anatomia & histologia , Locos de Características Quantitativas , Sintenia , Vicia faba/genética , Mapeamento Cromossômico , DNA de Plantas/genética , Secas , Ligação Genética , Medicago truncatula/genética , Fenótipo , Transpiração Vegetal , Polimorfismo de Nucleotídeo Único , Análise de Sequência de DNA , Estresse Fisiológico , Vicia faba/anatomia & histologia
10.
J Burn Care Res ; 45(1): 136-144, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-37703100

RESUMO

Physical, social, and psychological outcomes have been identified as relevant to the rehabilitation process of children with burn injuries. Existing legacy measures are limited in item content and only cover a few constructs. Condition-specific outcomes are highly relevant to gauge early growth and development. Computerized adaptive tests (CATs) leveraging advanced psychometric technologies minimize respondent burden. This project developed PS-LIBRE1-5 Profile CAT (Preschool Life Impact Burn Recovery Evaluation) to measure relevant postburn outcomes in children aged one to five. Responses to the field-tested PS-LIBRE1-5 Profile (188 items) were measured on a scale of frequency or ability. Scores were coded from 0 to 4 where higher scores reflected better functioning. Factor analysis identified the items retained in the final item bank of each scale. CAT simulations were conducted to estimate the mean score of each scale. The simulated CAT score and full item bank scores were compared based upon the score range, ceiling and floor effects, and marginal reliabilities. The child mean age was 3.0 ± 1.5 years (n = 500). Average burn size and time since burn injury were 4.2% TBSA and 1.1 years, respectively. Psychometric analysis resulted in eight scales: Physical, Communication and Language, Emotional Wellbeing, Mood, Anxiety, Peer Acceptance, Play, and Peer Relations. Ceiling effects were acceptable at <13% for all scales. Marginal reliabilities of the CATs were credible. The PS-LIBRE1-5 Profile CAT contains 111 items, and is a comprehensive measure that captures physical, communication and language, psychological, and social functioning of preschool burn survivors.


Assuntos
Queimaduras , Criança , Humanos , Pré-Escolar , Lactente , Queimaduras/psicologia , Relações Interpessoais , Comportamento Social , Escolaridade , Sobreviventes/psicologia , Psicometria , Qualidade de Vida , Inquéritos e Questionários
11.
Front Plant Sci ; 14: 1069126, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37051088

RESUMO

Fungi of genus Botrytis are important pathogens of legumes, causing gray mold and chocolate spot diseases. The use of molecular methods to identify pathogens has resulted in the discovery of several new Botrytis species and new associations of pathogens with diseases. Thus, chocolate spot of faba bean is now associated with at least four species: B. fabae, B. cinerea, B. pseudocinerea and B. fabiopsis. Species of Botrytis differ in host plant, pathogenicity, fungicide resistance and other relevant properties that affect disease control. The aim of this study was to identify the species of Botrytis isolated from different legume crops and to evaluate their in vitro pathogenicity. Between 2014 and 2019, 278 isolates of Botrytis were obtained from infected legumes in Latvia. A phylogenetic analysis was carried out by sequencing three nuclear genes, RPB2, HSP60, and G3PDH, considered to be diagnostic for species in this genus. A set of 21 representative isolates was selected for pathogenicity tests on detached leaves of faba bean, field pea, lupin and soybean using 5-mm mycelium-agar plugs. The diameter of the formed lesions under the inoculated plug was measured crosswise each day. The datasets were subjected to analysis of variance with the split-plot design of the experiment and repeated-measures model. Six species were identified: B. cinerea, B. fabae, B. pseudocinerea, B. fabiopsis, B. euroamericana and B. medusae. In addition to the expected combinations of host and pathogen, naturally occurring infections of B. fabiopsis were found on chickpea, B. euroamericana on faba bean and B. medusae in lupin seeds. Species and isolate had significant effects on pathogenicity on all crops tested. Several isolates were pathogenic on two or more host species: two of B. pseudocinerea, two of B. cinerea, two of B. fabiopsis and the one of B. medusae. One isolate of B. pseudocinerea and two of B. fabiopsis caused primary lesions on all five host species. The results show that these Botrytis species have a broad host range that should be borne in mind when planning crop sequences and rotations.

12.
J Burn Care Res ; 44(1): 27-34, 2023 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-35866527

RESUMO

Individuals who experience burns are at higher risk of developing posttraumatic stress disorder and chronic pain. A synergistic relationship exists between posttraumatic stress disorder and chronic pain. We sought to evaluate the role of individual posttraumatic stress disorder symptom clusters as predictors of pain interference. We hypothesized that the hyperarousal and emotional numbing symptom clusters would be predictive of pain interference, even when accounting for the other two posttraumatic stress disorder symptom clusters, pain intensity, and other covariates. Multivariate linear regression analyses were completed using data from the Burn Model System National Database. A total of 439 adult participants had complete responses on self-report measures assessing posttraumatic stress disorder symptoms, pain intensity, and pain interference at 6-month after discharge and were included in analyses. Results indicate hyperarousal (B = .10, p = .03) and emotional numbing (B = .13, p = .01) posttraumatic stress disorder symptom clusters were each significantly associated with pain interference, even when accounting for pain intensity (B = .64, p < .001). Results highlight the importance of the emotional numbing and hyperarousal posttraumatic stress disorder symptom clusters in explaining pain interference. Findings suggest that when posttraumatic stress disorder symptoms or chronic pain are present, screening for and treating either condition may be warranted to reduce pain interference. Further, psychological interventions that target emotional numbing and hyperarousal posttraumatic stress disorder symptoms may be fruitful for promoting better coping with chronic pain and reducing pain interference.


Assuntos
Queimaduras , Dor Crônica , Transtornos de Estresse Pós-Traumáticos , Adulto , Humanos , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/etiologia , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Dor Crônica/etiologia , Síndrome , Queimaduras/complicações , Sobreviventes
14.
J Burn Care Res ; 43(4): 899-905, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34751379

RESUMO

Depression and posttraumatic stress (DPTS) are common psychiatric comorbidities following burn injury. The purpose of this study was to develop an admission scoring system that assesses the risk of development of depression or posttraumatic symptoms in the burn population. This study is a retrospective review of the prospectively collected Burn Model System National Database. Adult burn survivors enrolled from 2014 to 2018 (n = 486) were included. The primary outcome was the presence of DPTS symptoms at 6, 12, or 24 months postinjury. Logistic regression analysis was used to identify demographic and clinical predictors of DPTS symptoms. A risk scoring system was then created based on assigning point values to relevant predictor factors. The study population had a mean age of 46.5 ± 15.8 years, mean burn size of 18.3 ± 19.7%, and was 68.3% male. Prior to injury, 71.3% of the population was working, 47.9% were married, and 50.8% had completed more than a high school education. An 8-point risk scoring system was developed using the following predictors of DPTS symptom development: gender, psychiatric treatment in the past year, graft size, head/neck graft, etiology of injury, and education level. This study is the first to develop a DPTS symptom risk scoring system for burn injury. This scoring system will aid in identifying burn survivors at high risk of long-term psychiatric symptoms that may be used to improve screening, monitoring, timely diagnosis, and interventions.


Assuntos
Queimaduras , Transtornos de Estresse Pós-Traumáticos , Adulto , Queimaduras/complicações , Queimaduras/psicologia , Queimaduras/terapia , Depressão/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Transtornos de Estresse Pós-Traumáticos/etiologia , Sobreviventes
15.
J Burn Care Res ; 43(5): 1114-1128, 2022 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-34965302

RESUMO

The transition from early childhood to teen years (5-12) is a critical time of development, which can be made particularly challenging by a burn injury. Assessing postburn recovery during these years is important for improving pediatric survivors' development and health outcomes. Few validated burn-specific measures exist for this age group. The purpose of this study was to generate item pools that will be used to create a future computerized adaptive test (CAT) assessing postburn recovery in school-aged children. Item pool development was guided by the previously developed School-Aged Life Impact Burn Recovery Evaluation (SA-LIBRE5-12) conceptual framework. The item pool development process involved a systematic literature review, extraction of candidate items from existing legacy measures, iterative item review during expert consensus meetings, and parent cognitive interviews. The iterative item review with experts consisted of six rounds. A total of 10 parent cognitive interviews were conducted. The three broad themes of concern were items that needed 1) clarification, needed context, or were vague, 2) age dependence and relevance, and 3) word choice. The cognitive interviews indicated that survey instructions, recall period, item stem, and response choices were interpretable by respondents. Final item pool based on parental feedback consists of 57, 81, and 60 items in physical, psychological, and family and social functioning, respectively. Developed item pools (n = 198) in three domains are consistent with the existing conceptual framework. The next step involves field testing the item pool and calibration using item response theory to develop and validate the SA-LIBRE5-12 CAT Profile.


Assuntos
Queimaduras , Queimaduras/psicologia , Queimaduras/terapia , Pré-Escolar , Humanos , Avaliação de Resultados em Cuidados de Saúde , Psicometria , Qualidade de Vida/psicologia , Inquéritos e Questionários , Sobreviventes/psicologia
16.
J Nerv Ment Dis ; 199(8): 537-43, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21814075

RESUMO

Terrorism has dominated the domestic and international landscape since 9/11. Like other fields, psychiatry was not well prepared. With the 10th anniversary of the 9/11 attack approaching, it is timely to consider what can be done to prepare before the next event. Much has been learned to provide knowledge and resources. The roles of psychiatrists are challenged by what is known of the causes of, consequences of, and responses to terrorism. Reflecting on knowledge from before and since 9/11 introduces concepts, how individuals become terrorists, how to evaluate the psychiatric and behavioral effects of terrorism, and how to expand treatments, behavioral health interventions, public policy initiatives, and other responses for its victims. New research, clinical approaches, and policy perspectives inform strategies to reduce fear and cope with the aftermath. This article identifies the psychiatric training, skills and services, and ethical considerations necessary to prevent or reduce terrorism and its tragic consequences and to enhance resilience.


Assuntos
Psicoterapia/métodos , Transtornos de Estresse Pós-Traumáticos/terapia , Terrorismo/psicologia , Desastres , Humanos , Acontecimentos que Mudam a Vida , Serviços de Saúde Mental , Transtornos de Estresse Pós-Traumáticos/psicologia
17.
Legum Sci ; 3(3): e75, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34977588

RESUMO

Faba bean (Vicia faba L.), a member of the Fabaceae family, is one of the important food legumes cultivated in cool temperate regions. It holds great importance for human consumption and livestock feed because of its high protein content, dietary fibre, and nutritional value. Major faba bean breeding challenges include its mixed breeding system, unknown wild progenitor, and genome size of ~13 Gb, which is the largest among diploid field crops. The key breeding objectives in faba bean include improved resistance to biotic and abiotic stress and enhanced seed quality traits. Regarding quality traits, major progress on reduction of vicine-convicine and seed coat tannins, the main anti-nutritional factors limiting faba bean seed usage, have been recently achieved through gene discovery. Genomic resources are relatively less advanced compared with other grain legume species, but significant improvements are underway due to a recent increase in research activities. A number of bi-parental populations have been constructed and mapped for targeted traits in the last decade. Faba bean now benefits from saturated synteny-based genetic maps, along with next-generation sequencing and high-throughput genotyping technologies that are paving the way for marker-assisted selection. Developing a reference genome, and ultimately a pan-genome, will provide a foundational resource for molecular breeding. In this review, we cover the recent development and deployment of genomic tools for faba bean breeding.

18.
J Burn Care Res ; 42(1): 32-40, 2021 02 03.
Artigo em Inglês | MEDLINE | ID: mdl-32594128

RESUMO

The current study assessed the prevalence of appearance concerns, psychosocial difficulty, and use of an appearance-focused social and psychological support resource (Young Person's Face IT; YPF) within a population of teens (12-17 year-olds) receiving outpatient burn care with the goal to assess the feasibility of routine use of the resource in outpatient burn care. The study sample included 78 patients ages 12 to 17 receiving outpatient care for burns at one hospital. Appearance concerns were measured via the Burn Outcomes Questionnaire Appearance Subscale, the Appearance Subscale of the Body Esteem Scale for Adolescents, and a 2-part question which asked participants directly about appearance concerns related to the burn injury. A large majority (70.0%) of study participants reported appearance concerns on at least one appearance measure and girls reported more burn-related appearance concerns compared with boys. Psychosocial difficulty was measured via the Pediatric Symptom Checklist-17 (PSC-17) and measures of social functioning were collected and compared within the sample by burn size, burn location, sex, and appearance concerns. Internalizing symptoms were prevalent on the PSC-17 (18.6% risk) and decreased self-worth and increased social anxiety symptoms were significantly associated with having appearance concerns. Although interest in YPF was high (78.3%), actual use of the resource among those who signed up to pilot it (n = 46 participants) was low (19.4% use). Results indicate that there is a need for and interest in appearance-focused social anxiety resources for adolescents with burn injuries such as YPF, but more research is needed to understand its feasibility in clinical practice.


Assuntos
Assistência Ambulatorial , Imagem Corporal , Queimaduras/psicologia , Queimaduras/terapia , Adolescente , Ansiedade , Feminino , Humanos , Masculino , Autoimagem , Fatores Sexuais , Ajustamento Social , Participação Social , Apoio Social , Inquéritos e Questionários
19.
Nat Plants ; 7(7): 923-931, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34226693

RESUMO

Faba bean (Vicia faba L.) is a widely adapted and high-yielding legume cultivated for its protein-rich seeds1. However, the seeds accumulate the pyrimidine glucosides vicine and convicine, which can cause haemolytic anaemia (favism) in 400 million genetically predisposed individuals2. Here, we use gene-to-metabolite correlations, gene mapping and genetic complementation to identify VC1 as a key enzyme in vicine and convicine biosynthesis. We demonstrate that VC1 has GTP cyclohydrolase II activity and that the purine GTP is a precursor of both vicine and convicine. Finally, we show that cultivars with low vicine and convicine levels carry an inactivating insertion in the coding sequence of VC1. Our results reveal an unexpected, purine rather than pyrimidine, biosynthetic origin for vicine and convicine and pave the way for the development of faba bean cultivars that are free of these anti-nutrients.


Assuntos
Catálise , Glucosídeos/biossíntese , Hidrolases/metabolismo , Pirimidinonas/metabolismo , Sementes/metabolismo , Vicia faba/genética , Vicia faba/metabolismo , Produtos Agrícolas/genética , Produtos Agrícolas/metabolismo , Dinamarca , Regulação da Expressão Gênica de Plantas , Genes de Plantas , Glucosídeos/genética , Hidrolases/genética , Sementes/genética
20.
J Burn Care Res ; 42(6): 1067-1075, 2021 11 24.
Artigo em Inglês | MEDLINE | ID: mdl-34228121

RESUMO

Pediatric burn injuries can alter the trajectory of the survivor's entire life. Patient-centered outcome measures are helpful to assess unique physical and psychosocial needs and long-term recovery. This study aimed to develop a conceptual framework to measure pediatric burn outcomes in survivors aged 5 to 12 years as a part of the School-Aged Life Impact Burn Recovery Evaluation Computer Adaptive Test (SA-LIBRE5-12 CAT) development. This study conducted a systematic literature review guided by the WHO International Classification of Functioning-Child and Youth and domains in the American Burn Association/Shriners Hospitals for Children Burn Outcomes Questionnaire5-18. Interviews with eight parents and seven clinicians were conducted to identify important domains in child recovery. One clinician focus group with four clinicians was completed to identify gaps in the preliminary framework, and semiweekly expert consensus meetings were conducted with three experts to solidify the framework. Qualitative data were analyzed by grounded theory methodology. Three major thematic outcome domains emerged: 1) Physical Functioning: fine motor and upper extremity, gross motor and lower extremity, pain, skin symptoms, sleep and fatigue, and physical resilience; 2) Psychological Functioning: cognitive, behavioral, emotional, resilience, and body image; and 3) Family and Social Functioning: family relationships, and parental satisfaction, school, peer relations, and community participation. The framework will be used to develop item banks for a CAT-based assessment of school-aged children's health and developmental outcomes, which will be designed for clinical and research use to optimize interventions, personalize care, and improve long-term health outcomes for burned children.


Assuntos
Queimaduras/psicologia , Resiliência Psicológica , Inquéritos e Questionários/normas , Sobreviventes/psicologia , Adolescente , Ansiedade/etiologia , Queimaduras/reabilitação , Criança , Feminino , Humanos , Masculino , Transtornos das Habilidades Motoras/etiologia
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