Use of CRISPR Technology in Gene Editing for Tolerance to Biotic Factors in Plants: A Systematic Review.

The objective of this systematic review (SR) was to select studies on the use of gene editing by CRISPR technology related to plant resistance to biotic stresses. We sought to evaluate articles deposited in six electronic databases, using pre-defined inclusion and exclusion criteria. This SR demonstrates that countries such as China and the United States of America stand out in studies with CRISPR/Cas. Among the most studied crops are rice, tomatoes and the model plant Arabidopsis thaliana. The most cited biotic agents include the genera, Xanthomonas, Manaporthe, Pseudomonas and Phytophthora. This SR also identifies several CRISPR/Cas-edited genes and demonstrates that plant responses to stressors are mediated by many complex signaling pathways. The Cas9 enzyme is used in most articles and Cas12 and 13 are used as additional editing tools. Furthermore, the quality of the articles included in this SR was validated by a risk of bias analysis. The information collected in this SR helps to understand the state of the art of CRISPR/Cas aimed at improving resistance to diseases and pests to understand the mechanisms involved in most host-pathogen relationships. This SR shows that the CRISPR/Cas system provides a straightforward method for rapid gene targeting, providing useful information for plant breeding programs.

How do early affiliative memories explain body image shame? A 12-month longitudinal study in adolescent girls.

OBJECTIVE: This study aimed to explain adolescent girls' body image shame across a 12- month longitudinal design, and its relationship with early parental memories of warmth and safeness and fear of receiving compassion from others. DESIGN AND METHODS: Participants included 231 adolescent girls, who completed self-report measures at three different periods: baseline (W1), 6-month follow-up (W2), and 12-month follow-up (W3). Descriptive and correlational analyses were performed, and differences between participants at the different waves were explored through repeated measures ANOVA. A cross-lagged panel model tested the mediational effect of fears of receiving compassion on the association between early affiliative memories (W1) and body image shame (W3). RESULTS: ANOVA results found significant differences throughout time in memories of warmth and safeness (tending to diminish) and in body image shame (tending to rise). Correlation analysis revealed that all variables were significantly associated in the expected directions, across the three waves. Finally, path analysis revealed that early affiliative parental memories (in W1) had a direct effect on body image shame (in W3), through the fear of receiving compassion from others (in W2), accounting for 85% of body image shame's variance (W3). CONCLUSIONS: These findings indicate that the lack of early affiliative memories often leads to the development of defensive mechanisms such as fears of receiving compassion from others which in turn can foster isolation and distant relationships, enhancing feelings of inferiority and inadequacy, which in female adolescents can emerge centered on body image - body image shame. This study further highlights the importance of prevention and intervention strategies based on compassion to specifically target fears of receiving compassion from others, in adolescent girls dealing with feelings of inferiority and shame regarding their body.

Behavioral and biochemical consequences after chronic exposition to the herbicide atrazine in tadpoles.

Atrazine (ATZ) is the third most sold herbicide in Brazil, occupying the seventh position between most widely used pesticides. Due to its easy outflow, low reactivity and solubility, moderate adsorption to organic matter and clay, and long soil persistence, residual herbicide can be identified after long periods following application, and its usage has been prohibited in diverse countries. Amphibians are important bioindicators to assess impact of pesticide like atrazine, due to having a partial aquatic life cycle. This study had as objective to assess the response of bullfrog (Lithobates catesbeianus) tadpoles when exposed to this herbicide. Animals were exposed for a total of 168h to following concentrations: negative control, 40 µg/L, 200 µg/L, 2000 µg/L, 20000 µg/L of ATZ. Analysis of swimming activity was performed, and biochemical profile was assessed by analysis of blood and plasma glucose levels, urea, creatinine, cholesterol, HDL, triglycerides, glutamic pyruvic transaminase (GPT), alkaline phosphatase (AP), calcium, total proteins, phenol, peroxidase and polyphenol oxidase activity. Results exhibited malnutrition, anemia, likely muscle mass loss, and hepatic damage, indicating that ATZ can lead to an increase in energy to maintain homeostasis for animal survival.

When body dysmorphia symptomatology meets disordered eating: The role of shame and self-criticism.

Body Dysmorphic Disorder (BDD) is a serious psychiatric condition that has long been identified as an important risk factor for the development of eating-related difficulties. However, little is known about the mechanisms that might explain this association. Therefore, the current study aimed to explore the link between body dysmorphic symptomatology and disordered eating, and test whether this relationship is mediated by higher levels of shame and self-criticism. This cross-sectional study included 291 women from the community, aged between 18 and 62 years old, who completed self-report measures. Path analysis revealed that BDD symptomatology has not only a direct effect on disordered eating, but also an indirect effect, mediated by shame and self-criticism. The path model revealed a very good fit, accounting for 38% and 31% of internal and external shames' variances, respectively, for 69% of self-criticism variance, and 58% of the variance of disordered eating. These findings seem to suggest that in women with BDD symptomatology, disordered eating may emerge as a compensatory strategy to cope with general feelings of inferiority/defectiveness, particularly in the presence of shame experiences and self-critical attitudes/behaviours. Moreover, this study emphasizes the importance to invest in innovative treatment and prevention approaches for BDD that specifically target shame and self-criticism, such as compassion-based therapies. LEVEL OF EVIDENCE: IV, cross-sectional study.

Atrazine contaminated sites and bullfrog tadpoles: evasive trends and biochemical consequences.

Atrazine (ATZ) is one of the most used active principles in agricultural systems. This pesticide has the ability to easily accumulate in terrestrial and aquatic environments, causing impacts with chronic adverse effects. Avoidance tests are tests that seek to assess the concentration from which a given organism escapes, that is, migrates to another habitat. They are being used as a modality of innovative and minimally invasive ecotoxicological tests. Our objective was to evaluate the sensitivity and possible toxic effects of ATZ in bullfrog tadpoles (Lithobates catesbeianus), through avoidance tests and oxidative stress analyses. We performed the behavioral avoidance test lasting 12 h, with observations every 60 min in a linear multi-compartment system with seven compartments. Each compartment corresponded to a concentration: negative control, 1, 2, 20, 200, 2000, 20,000 µg L-1. After the selection of habitat, organisms were forcedly maintained in the chosen concentrations for 48 h and then, metabolic effects were measured assessing the blood plasma amino acid profile and liver protein degradation. We also determined the effective concentrations of ATZ tested at 0 h and 48 h. The results showed that there was an effect of the treatment on the distribution of tadpoles, but not on the hours or on the combined effect (interaction). The biochemical analyses also showed a concentration-dependent relationship which caused significant toxic effects even in a short period of time. In conclusion, these frogs were able to avoid places with high concentrations of ATZ in the first hours of exposure, which suggests that in the natural environment these animals can migrate or avoid areas contaminated by this herbicide; however, depending on the selected concentration, serious biochemical consequences can occur.

The contribution of the components of self-compassion and self-judgment in depressive symptomatology and psychological health in patients with chronic physical disease.

The current study aimed at examining the potential role of self-compassion and self-judgment components on depressive symptomatology and psychological health in people with a diagnosis of chronic physical disease. The sample included 223 participants with a diagnosis of chronic physical disease, aged between 18 and 45 years, who completed an online survey. The tested model showed an excellent fit to the empirical data and path analysis results indicated that mindfulness, self-judgment, and isolation have a significant impact on depressive symptomatology (explaining 40% of its variance) and also on psychological health (explaining 45% of its variance). This study shed some light on the role of both self-compassion and self-judgment components, suggesting the importance of the promotion of mindfulness skills and the reduction of self-judgment and feelings of isolation in people with chronic physical disease. These findings seem to support the development of more effective interventions for the promotion of psychological health and reduction of depressive symptoms in people diagnosed with a chronic physical disease.

Adolescent hope in the context of nursing care: A scoping review.

PROBLEM: Hope is a multidimensional concept with a multidisciplinary approach in different areas of health intervention. From the perspective of the discipline of nursing, the concept of hope in the adolescent has been defined. However, its characterization is not consensually established but is necessary for nurses to be able to plan interventions aimed at its promotion. This scoping review aims at mapping the existing knowledge about adolescent's hope in the context of nursing care and contributing to the improvement of nursing interventions. ELIGIBILITY CRITERIA: The review was conducted using Joanna Biggs Institute methodology, and was conducted in Pubmed, Cinahl, Scielo, Ebscohost, Open Grey, Mednar, Worldwidescience, and Science Direct. Inclusion criteria included quantitative, qualitative, or mixed studies as well as systematic reviews and opinion articles, published in Portuguese or English, without publication date limitation, with "adolescents" as the population, "hope" as a concept, and "nursing" as context. Overall studies quality was quite high. The extraction of relevant information from each selected article was summarized in a table that is publicly available at Open Science Framework. SAMPLE: A total of 1259 articles were identified by title and 1220 were excluded by abstract.25 empirical articles met the inclusion criteria. RESULTS: The concept of hope in this population was associated with other concepts such as resilience or well-being. Nursing interventions increase hope with positive outcomes in healthy or with chronic/complex diseases adolescents. CONCLUSION: Hope is an essential component of nursing care for healthy, with chronic or complex disease adolescents with increased interest in the scientific community. IMPLICATIONS: This review recommends orientations for the nursing process with a central focus in address human responses, nursing interventions, and the results of those interventions.

Evaluation of New Potential Inflammatory Markers in Patients with Nonvalvular Atrial Fibrillation.

Atrial fibrillation (AF), the most common arrhythmia in clinical practice, is associated with an increase in mortality and morbidity due to its high potential to cause stroke and systemic thromboembolism. Inflammatory mechanisms may play a role in the pathogenesis of AF and its maintenance. We aimed to evaluate a range of inflammatory markers as potentially involved in the pathophysiology of individuals with nonvalvular AF (NVAF). A total of 105 subjects were enrolled and divided into two groups: patients with NVAF (n = 55, mean age 72 ± 8 years) and a control group of individuals in sinus rhythm (n = 50, mean age 71 ± 8 years). Inflammatory-related mediators were quantified in plasma samples by using Cytometric Bead Array and Multiplex immunoassay. Subjects with NVAF presented significantly elevated values of interleukin (IL)-2, IL-4, IL-6, IL-10, tumor necrosis factor (TNF), interferon-gamma, growth differentiation factor-15, myeloperoxidase, as well as IL-4, interferon-gamma-induced protein (IP-10), monokine induced by interferon-gamma, neutrophil gelatinase-associated lipocalin, and serum amyloid A in comparison with controls. However, after multivariate regression analysis adjusting for confounding factors, only IL-6, IL-10, TNF, and IP-10 remained significantly associated with AF. We provided a basis for the study of inflammatory markers whose association with AF has not been addressed before, such as IP-10, in addition to supporting evidence about molecules that had previously been associated with the disease. We expect to contribute to the discovery of markers that can be implemented in clinical practice hereafter.

An optimized spectrophotometric assay reveals increased activity of enzymes involved in 2-arachidonoyl glycerol turnover in the cerebral cortex of a rat model of Alzheimer's disease.

The endocannabinoid system is implicated in a plethora of neuropsychiatric disorders. However, it is technically challenging to assess the turnover of 2-arachidonoyl glycerol (2-AG), the principal endocannabinoid molecule in the brain. Two recent studies showed that diacylglycerol lipase α (DAGLα), an enzyme chiefly responsible for the cerebral production of 2-AG, also accepts the surrogate chromogenic substrate 4-nitrophenyl butyrate (4-NPB). Here, we aimed to optimize this spectrophotometric assay for ex vivo brain tissue, in particular, rat cerebrocortical homogenates, to measure the activity of the major enzymes responsible for the production and degradation of 2-AG. The initial velocity of 4-NPB hydrolysis was dependent on protein, substrate, and Ca2+ concentrations, and was sensitive to the non-selective serine hydrolase inhibitor, methoxy arachidonyl fluorophosphonate, the DAGLα inhibitors, OMDM188, tetrahydrolipstatin, and RHC80267, as well as the monoacylglycerol lipase (MAGL) inhibitor, JZL184, respectively. Next, we tested the usefulness of this assay in ex vivo brain tissue of rat models of human health conditions known to affect cerebrocortical 2-AG production, i.e. pathological stress and sporadic Alzheimer's disease (AD). In rats submitted to chronic restraint stress, cortical CB1 R density was significantly decreased, as assessed with radioligand binding. Nevertheless, 4-NPB hydrolysis remained at control levels. However, in rats 4 weeks after intracerebroventricular injection with streptozotocin - an established model of sporadic AD -, both CB1 R levels and 4-NPB hydrolysis and its DAGL- and MAGL-dependent fractions were significantly increased. Altogether, we optimized a simple complementary ex vivo technique for the quantification of DAGL and MAGL activity in brain samples.

Posttranslational modifications of proteins are key features in the identification of CSF biomarkers of multiple sclerosis.

BACKGROUND: Multiple sclerosis is an inflammatory and degenerative disease of the central nervous system (CNS) characterized by demyelination and concomitant axonal loss. The lack of a single specific test, and the similarity to other inflammatory diseases of the central nervous system, makes it difficult to have a clear diagnosis of multiple sclerosis. Therefore, laboratory tests that allows a clear and definite diagnosis, as well as to predict the different clinical courses of the disease are of utmost importance. Herein, we compared the cerebrospinal fluid (CSF) proteome of patients with multiple sclerosis (in the relapse-remitting phase of the disease) and other diseases of the CNS (inflammatory and non-inflammatory) aiming at identifying reliable biomarkers of multiple sclerosis. METHODS: CSF samples from the discovery group were resolved by 2D-gel electrophoresis followed by identification of the protein spots by mass spectrometry. The results were analyzed using univariate (Student's t test) and multivariate (Hierarchical Cluster Analysis, Principal Component Analysis, Linear Discriminant Analysis) statistical and numerical techniques, to identify a set of protein spots that were differentially expressed in CSF samples from patients with multiple sclerosis when compared with other two groups. Validation of the results was performed in samples from a different set of patients using quantitative (e.g., ELISA) and semi-quantitative (e.g., Western Blot) experimental approaches. RESULTS: Analysis of the 2D-gels showed 13 protein spots that were differentially expressed in the three groups of patients: Alpha-1-antichymotrypsin, Prostaglandin-H2-isomerase, Retinol binding protein 4, Transthyretin (TTR), Apolipoprotein E, Gelsolin, Angiotensinogen, Agrin, Serum albumin, Myosin-15, Apolipoprotein B-100 and EF-hand calcium-binding domain-containing protein. ELISA experiments allowed validating part of the results obtained in the proteomics analysis and showed that some of the alterations in the CSF proteome are also mirrored in serum samples from multiple sclerosis patients. CSF of multiple sclerosis patients was characterized by TTR oligomerization, thus highlighting the importance of analyzing posttranslational modifications of the proteome in the identification of novel biomarkers of the disease. CONCLUSIONS: The model built based on the results obtained upon analysis of the 2D-gels and in the validation phase attained an accuracy of about 80% in distinguishing multiple sclerosis patients and the other two groups.

Evaluation of serum haptoglobin levels and Hp1-Hp2 polymorphism in the haptoglobin gene in patients with atrial fibrillation.

BACKGROUND: Atrial fibrillation (AF) is an arrhythmia that involves structural and electrophysiological abnormalities. Many of the AF-related clinical conditions are associated with an increase in inflammatory and oxidative factors. Haptoglobin (Hp) is an acute phase protein whose biological role is to promote clearance of free hemoglobin (Hb). In addition, for being considered an inflammatory marker, Hp represents a protective mechanism against the oxidative effects of Hb. The Hp1-Hp2 polymorphism at Hp locus can lead to three phenotypes related to structural and functional differences in the protein. The objective of this study were to evaluate Hp levels and Hp1-Hp2 polymorphism at Hp locus in patients with AF compared to a control group. METHODS AND RESULTS: This study included 65 patients with AF and 54 individuals without the arrhythmia. Biochemical parameters were determined using Vitros system, plasma levels of Hp were measured in serum samples by using ELISA method and polymorphisms were verified by PCR technique. Plasma Hp levels, as well as allelic and genotypic frequency, were not associated with AF. The levels of Hp also did not differ among the genotypes according to the applied models. CONCLUSIONS: The results suggest that Hp levels and Hp1-Hp2 polymorphism are not associated to AF.

Affiliative interactions and body and eating-related difficulties in adolescent girls: The effects of fears of compassion and feelings of social safeness.

The need to examine the associations between emotion regulation and mental health and well-being among adolescents is increasingly recognized. Adolescence is a critical time characterized by increased vulnerability towards emotional struggles and difficulties, especially related with body image and eating behaviours. Thus, it seems particularly important to analyse the processes and mechanisms underlying the relationships between several risk factors (such as the lack of early affiliative memories) and body and eating-related difficulties, in this specific developmental phase. The current study intended to examine whether early affiliative memories are significantly associated with body and eating-related difficulties (i.e., body image shame and eating psychopathology severity), and whether this association is mediated by lower feelings of social safeness and increased levels of fears of receiving compassion from others. This cross-sectional study was conducted with 231 adolescent girls from the community, aged between 12 and 18, who completed self-report measures. Data were examined through descriptive and correlational statistics, and the adequacy of the model was performed via path analysis. Path analysis results revealed that fears of receiving compassion from others and low feelings of social safeness mediated the relationship between early affiliative memories and body and eating-related difficulties. The path model accounted for the variances in the following way: 27% of feelings of social safeness; 23% of fears of receiving compassion from others; 28% of body-image shame; and 54% of eating psychopathology severity, revealing a very good fit. These findings emphasize the relevance of assessing and working on potential processes underlying the adoption of disordered body and eating attitudes and behaviours, not only but especially in female adolescents with scarce recall of early affiliative experiences with close ones.

Transcriptome Profiling of the Resistance Response of Musa acuminata subsp. burmannicoides, var. Calcutta 4 to Pseudocercospora musae.

Banana (Musa spp.), which is one of the world's most popular and most traded fruits, is highly susceptible to pests and diseases. Pseudocercospora musae, responsible for Sigatoka leaf spot disease, is a principal fungal pathogen of Musa spp., resulting in serious economic damage to cultivars in the Cavendish subgroup. The aim of this study was to characterize genetic components of the early immune response to P. musae in Musa acuminata subsp. burmannicoides, var. Calcutta 4, a resistant wild diploid. Leaf RNA samples were extracted from Calcutta 4 three days after inoculation with fungal conidiospores, with paired-end sequencing conducted in inoculated and non-inoculated controls using lllumina HiSeq 4000 technology. Following mapping to the reference M. acuminata ssp. malaccensis var. Pahang genome, differentially expressed genes (DEGs) were identified and expression representation analyzed on the basis of gene ontology enrichment, Kyoto Encyclopedia of Genes and Genomes orthology and MapMan pathway analysis. Sequence data mapped to 29,757 gene transcript models in the reference Musa genome. A total of 1073 DEGs were identified in pathogen-inoculated cDNA libraries, in comparison to non-inoculated controls, with 32% overexpressed. GO enrichment analysis revealed common assignment to terms that included chitin binding, chitinase activity, pattern binding, oxidoreductase activity and transcription factor (TF) activity. Allocation to KEGG pathways revealed DEGs associated with environmental information processing, signaling, biosynthesis of secondary metabolites, and metabolism of terpenoids and polyketides. With 144 up-regulated DEGs potentially involved in biotic stress response pathways, including genes involved in cell wall reinforcement, PTI responses, TF regulation, phytohormone signaling and secondary metabolism, data demonstrated diverse early-stage defense responses to P. musae. With increased understanding of the defense responses occurring during the incompatible interaction in resistant Calcutta 4, these data are appropriate for the development of effective disease management approaches based on genetic improvement through introgression of candidate genes in superior cultivars.

Internal and External Shame in Healthy and Chronically Ill Samples: Exploring Links to Psychological Health.

This study aimed to examine the role of decentering and committed action as mediators of the link of external and internal shame with psychological health, in people with a chronic disease diagnosis (n = 223) and without chronic disease (n = 230). Participants with chronic disease presented higher levels of both external and internal shame. Path analysis results showed that these variables seem to be negatively linked to psychological health and that their effects on this outcome seem to be reduced by the mechanisms of decentering and committed action. The tested model explained 56% of psychological health's variance and was invariant across groups. This study emphasizes the importance of taking a decentered stance towards internal experiences and behaving accordingly to one's personal values on psychosocial functioning, independently of disease status. These results may have particular relevance to individuals with high levels of shame.

Exploring eating and exercise-related indicators during COVID-19 quarantine in Portugal: concerns and routine changes in women with different BMI.

PURPOSE: The present study aimed to understand how quarantine associated with COVID-19 was experienced by women from different BMI groups (underweight, normal weight, pre-obesity, and obesity), by exploring the changes introduced in eating and exercise routines and the differences between BMI groups regarding shape concern, weight concern, and binge eating behaviours reported during this time. METHODS: This study comprised 580 women aged between 18 and 65 years old, who completed self-report measures, during the mandatory confinement in Portugal due to COVID-19. The total sample was divided into four groups, according to their BMI. RESULTS: Results revealed that overall, there were no significant differences between the groups regarding the eating and exercise routine changes introduced during quarantine. However, significant differences between the four groups were found in the reported body and eating-related difficulties (shape concern, weight concern, and binge eating behaviours), with the pre-obesity and obesity groups presenting significant higher levels. CONCLUSIONS: Our study suggests that, even though the changes introduced to the eating and exercise routine are independent of BMI, the pre-obesity and obesity group represent a major vulnerability group for the development of eating disorders. We hope this study allows professionals to understand the need to develop different guidelines and strategies for the pre-obesity and obesity female population during the deconfinement period. LEVEL OF EVIDENCE: Level V-Descriptive study.

Adolescent girls' body appreciation: influences of compassion and social safeness, and association with disordered eating.

PURPOSE: Adolescence has been stated as a period in which body image and eating difficulties' have its greatest expression, especially in females. Nonetheless, protective factors, such as body appreciation and compassion, are not thoroughly studied in this developmental stage. The current study hypothesized that competences for self-compassion and receiving others' compassion associate positively with social safeness, and the three variables with body appreciation. Moreover, the association between body appreciation and disordered eating was analysed. A sample of Portuguese female adolescents was used. METHODS: 205 participants, aged between 12 and 18, completed a set of self-report measures in the school context. Data were explored via descriptive, correlational and path analysis. RESULTS: Path analysis indicated that self-compassion and receiving compassion from others associate positively with feelings of social safeness which, in turn, associate with higher body appreciation. All the variables in study associated indirectly and negatively with disordered eating, and body appreciation presented a direct and negative association with disordered eating. CONCLUSION: Findings of the current study may suggest the pertinence of developing programs for female adolescents that include the cultivation of compassionate and affiliative skills to promote positive body image and to prevent or intervene with disordered eating symptoms, with potential effects on overall well-being and mental health. LEVEL OF EVIDENCE: Cross-sectional descriptive study, Level V.

The powerful effect of body image inflexibility on the explanation of eating psychopathology severity.

PURPOSE: Feelings of shame and social comparison focused on physical appearance have been identified as important risk factors for the engagement in disordered eating behaviours. Further, recent studies have emphasized the role of body-image psychological (in)flexibility in the association between several risk factors and eating psychopathology. The current study intended to explore, in two different path models, the effects of external shame, physical appearance-related social comparison, and body image inflexibility on the explanation of eating psychopathology severity. METHODS: This study follows a cross-sectional design and was conducted in a sample of 776 emerging-adult women, aged between 18 and 28, who completed an online battery of self-report measures. Path analyses were conducted using a structural equation modeling. RESULTS: Model 1's results showed that external shame and unfavourable social comparison based on physical appearance directly accounts for 26% of the variance in disordered eating. In turn, when body image inflexibility is introduced as a mediator in the relationship presented in Model 1, variance in disordered eating increases to 60% (Model 2). These results suggest that both external shame and unfavourable physical appearance-related social comparison have an impact on disordered eating behaviours. However, when body image inflexibility is introduced, the mentioned relationships change and reveal that psychological inflexibility is a significant mediator of these associations. CONCLUSION: These findings seem to demonstrate that body image inflexibility is a key process for the engagement in disordered eating, so the promotion of psychological flexibility focused on one's body is crucial for the prevention and treatment of disordered eating behaviours and attitudes. LEVEL OF EVIDENCE: Level IV: Cross-sectional study.

A consensus document on definition and diagnostic criteria for orthorexia nervosa.

PURPOSE: Since the term orthorexia nervosa (ON) was coined from the Greek (ὀρθός, right and ὄρεξις, appetite) in 1997 to describe an obsession with "correct" eating, it has been used worldwide without a consistent definition. Although multiple authors have proposed diagnostic criteria, and many theoretical papers have been published, no consensus definition of ON exists, empirical primary evidence is limited, and ON is not a standardized diagnosis. These gaps prevent research to identify risk and protective factors, pathophysiology, functional consequences, and evidence-based therapeutic treatments. The aims of the current study are to categorize the common observations and presentations of ON pathology among experts in the eating disorder field, propose tentative diagnostic criteria, and consider which DSM chapter and category would be most appropriate for ON should it be included. METHODS: 47 eating disorder researchers and multidisciplinary treatment specialists from 14 different countries across four continents completed a three-phase modified Delphi process, with 75% agreement determined as the threshold for a statement to be included in the final consensus document. In phase I, participants were asked via online survey to agree or disagree with 67 statements about ON in four categories: A-Definition, Clinical Aspects, Duration; B-Consequences; C-Onset; D-Exclusion Criteria, and comment on their rationale. Responses were used to modify the statements which were then provided to the same participants for phase II, a second round of feedback, again in online survey form. Responses to phase II were used to modify and improve the statements for phase III, in which statements that met the predetermined 75% of agreement threshold were provided for review and commentary by all participants. RESULTS: 27 statements met or exceeded the consensus threshold and were compiled into proposed diagnostic criteria for ON. CONCLUSIONS: This is the first time a standardized definition of ON has been developed from a worldwide, multidisciplinary cohort of experts. It represents a summary of observations, clinical expertise, and research findings from a wide base of knowledge. It may be used as a base for diagnosis, treatment protocols, and further research to answer the open questions that remain, particularly the functional consequences of ON and how it might be prevented or identified and intervened upon in its early stages. Although the participants encompass many countries and disciplines, further research will be needed to determine if these diagnostic criteria are applicable to the experience of ON in geographic areas not represented in the current expert panel. LEVEL OF EVIDENCE: Level V: opinions of expert committees.

Psychological inflexibility in university students: the european portuguese version of the acceptance and action questionnaire-university students.

Psychological inflexibility is defined as a transdiagnostic mechanism characterized by rigid efforts to control psychological reactions to painful, undesirable, unpleasant internal experiences. The Acceptance and Action Questionnaire-University Students (AAQ-US) was designed to assess students' academic context-related psychological inflexibility. This study adapted the AAQ-US to Portuguese and examined its factor structure, validity, and reliability in a college student sample (sample 1: N = 262). Exploratory factor analysis and parallel analysis suggested a two-factor structure. A confirmatory factor analysis was conducted in a second sample to cross-validate the AAQ-US factor structure (sample 2: N = 260). One higher-order factor (psychological inflexibility) with two lower-order factors (cognitive fusion and experiential avoidance) revealed a very good fit to the data. The AAQ-US total and dimensions showed good reliability, convergent and incremental validity. Overall, the Portuguese version of the AAQ-US is a reliable and valid instrument for assessing context-specific psychological inflexibility in university students.

Simultaneous distribution of aflatoxins B1 and B2, and fumonisin B1 in corn fractions during dry and wet-milling.

One of the limitations of the use of corn in the food chain is its contamination with mycotoxins. Reduction in their levels can be achieved by processing the grain, which in the case of corn can be achieved by wet or dry milling. The aim of this study was to compare the distribution of aflatoxins B1 and B2, and fumonisin B1 in corn fractions obtained by dry and wet milling, aiming to identify conditions to mitigate the risk of exposure to these contaminants. Naturally, contaminated corn kernels were subjected to laboratory milling. The wet-milling conditions containing 1% lactic acid in the steeping solution and 18 h of steeping were the most efficient for mycotoxin reduction in the endosperm fraction, reducing aflatoxins B1 and B2 contamination to levels below the limit of quantification. Dry-milling reduced the concentration of these mycotoxins in the endosperm (98-99%). Fumonisin B1 contamination increased in the germ and pericarp fraction by more than three times in both dry and wet milling. Dry-milling reduced fumonisin B1 contamination in the endosperm to levels below the limit of quantitation. Wet and dry milling processes can be an efficient control method to reduce aflatoxins and fumonisin in the corn endosperm fraction. Supplementary Information: The online version contains supplementary material available at 10.1007/s13197-022-05373-9.