LAMP assay to detect Elsinoë necatrix; an important Eucalyptus shoot and leaf pathogen.

Eucalyptus scab and shoot malformation caused by Elsinoë necatrix is an emerging disease and a serious threat to the global commercial forestry industry. The disease was first discovered in North Sumatra, Indonesia and now requires a simple and effective method for early pathogen detection. In this study, a rapid and sensitive Loop-mediated isothermal amplification (LAMP) assay was developed for E. necatrix. A unique region in a secondary metabolite gene cluster was used as target for the assay. To test robustness of the assay, LAMP amplification was verified in 15 strains of E. necatrix. A specificity test against 23 closely related Elsinoë species and three fungal species commonly isolated on Eucalyptus showed that the LAMP assay exclusively identified E. necatrix isolates. The assay had a high level of sensitivity, able to detect 0.01 ng (approximately 400 target copies) of pure E. necatrix DNA. Furthermore, using a simple DNA extraction method, it was possible to use this assay to detect E. necatrix in infected Eucalyptus leaves.

[The Need of Evidence-Based Treatment of Early-Onset Feeding Tube Dependency: A Pico- Framework Based Analytic Review of Clinical Features and Treatment of Feeding Tube Dependency]. / Zur Notwendigkeit evidenzbasierter Behandlung frühkindliche Sondendependenz ­ Ein Review zur Analyse von Störungsbild und Behandlung basierend auf dem PICO-Schema.

Feeding Tube Dependency is a constant increasing perinatal mental health condition, with estimated 350 new cases per year in Germany.The early onset feeding tube dependency is the consequence of a generalized food aversion. To establish an evidence-based nationwide treatment plan, relevant research from the past twenty years were narratively reviewed. Feeding tube dependency is an international increasingmental health condition, with a high symptom persistence and a low spontaneous remission. The generalized food aversion would prevent the transition to oral feeding.The treatment protocols, supported by the German Health System, based on low-frequency individual treatment and intensive inpatient treatments are not supported by the most recent evidence. In treatment outcome research more promising and effective programs can be distinguished from ineffective programs. As a result, treatment which are designed as intensive treatment, home-based or inpatient and are psychodynamicbased are most effective. Day-clinic and behavioral modification programs are not or low in treatment effectiveness.The German Health System approach to assist families with feeding tube dependency is not evidence-based. A new structure of treatment is imperatively required.

Metabolic conjugation reduces in vitro toxicity of the flavonoid nevadensin.

The present study focuses on the association between metabolic capacity and toxicity of the natural occurring flavonoid nevadensin in vitro. Human colon (HT29), liver (HepG2) and bone marrow (KG1) carcinoma cells were used and strong cell line dependent differences in toxic effect strength were found. HepG2 and KG1 cells were more sensitive against nevadensin treatment in comparison to HT29 cells. High resolution mass spectrometry experiments showed that nevadensin is rapidly glucuronidated in HT29 cells, whereas KG1 cells do not metabolize nevadensin, thus glucuronidation was supposed to be a crucial metabolic pathway in vitro. To proof this suggestion, nevadensin glucuronides were isolated from pig liver microsomes und structurally elucidated via NMR spectroscopy. In HepG2 cells a cellular enrichment of nevadensin itself as well as nevadensin-7-O-glucuronide was determined by tandem mass spectrometry. A proteomic screening of uridine 5'-diphospho (UDP)-glucuronosyltransferase (UGT) in HT29 and HepG2 cells provided first hints that the isoforms UGT1A6 and UGT1A1 are responsible for nevadensin glucuronidation. Additionally, nevadensin was found to be a potent SULT inhibitor in HepG2 cells. In sum, the present study clearly illustrates the importance of obtaining detailed information about metabolic competence of cell lines which should be considered in the evaluation of toxic endpoints.

Are feeding disorders and feeding tube dependency the same?: A discrimination study between feeding disorders, feeding tube dependency and healthy eaters.

AIM: Feeding disorders (FD) and feeding tube dependency (FTD) are defined by a persistent pattern of food aversion, but data regarding the frequency of food aversion symptoms are scarce. In this study, the frequency of aversion symptoms for FD, FTD and healthy eaters (HE) were compared. METHODS: We compared the frequency of food aversion symptoms in a group with FD (n = 32) and FTD (n = 39) to HE (n = 38) using the AFT questionnaire. This includes growth data as well as the feeding aversion scale and the frequency of food aversion symptoms. RESULTS: HE were reported to have minor frequency of symptoms, while FD children were reported to have daily aversive symptoms. FTD patients had the highest frequency in total. There were significant differences between FD and FTD regarding the frequency of food refusal, vomiting and bizarre eating patterns, and there were different correlative patterns of food aversion. CONCLUSIONS: Children with FD and FTD show significantly different patterns of feeding behaviour compared to healthy norms as well as to each other. This suggests individualised assessment and treatment programs may be most beneficial for the needs of children with FD and FTD.

In vitro combinatory cytotoxicity of hepatocarcinogenic asarone isomers and flavonoids.

Acorus calamus is a swamp herb, which is widely spread in northern hemisphere. It is used in infusions and in bitters but also in food supplements and in traditional herbal medicine. However, the main A. calamus ingredients, propenylic 2,4,5-trimethoxyphenylpropene isomers, termed alpha- (trans) and beta- (cis) asarone, are known carcinogens in rodents. Genotoxic and mutagenic properties are proposed. The presented in vitro cytotoxicity study focused on time-dependent and combinatory exposure scenarios. All experiments performed in HepG2 cells show moderate (in middle micromolar range) cytotoxicity with a time-dependent increase in effectiveness. The combination of the two asarone isomers in short time experiments (1 h) did not show any effect, whereas asarone isomer interaction changes from synergistic to antagonistic with an extended duration of exposure up to 72 h. The antagonism occurred predominantly in the naturally occurring trans/cis-asarone ratio of approximately 1:10. Combinatory cytotoxicity of asarones and selected, dietary relevant flavonoids in constant ratios was mainly attributed to flavonoid toxicity.

Characteristics of feeding tube dependency with respect to food aversive behaviour and growth.

The use of feeding tubes in pediatric medical procedures and management has dramatically increased over the last three decades. With this increase, the prevalence of Feeding Tube Dependency (FTD) - a reliance on enteral feeding following medical recovery due to lack of oral intake of nutrition, despite being able to eat- has increased too. It has been suggested, that cases with FTD show avoidant feeding behaviours such as food refusal, gagging or swallowing resistance, but evidence for this hypothesis is scarce. In a German population of 146 cases requesting feeding tube dependency treatment between 2005 and 2008 the frequency of occurrence of avoidant behaviour in FTD cases has been evaluated and was correlated to growth. The study includes children under 50 months of age being tube fed for at least three months. Parents received the Anamnestic Questionnaire for Feeding Disorder and Tube Weaning (AFT), which evaluates nutritional supply, tube feeding, feeding disorder symptoms, medical diagnosis, growth and psychosocial variables. The study group was comprised of 101 children (50 male, 51 female), with a median age of 15 months (IQR: 10-26.5) and a median tube feeding duration of 13 months (IQR: 8-27). The most prevalent medical diagnoses were congenital malformations (n = 51) and prematurity (n = 27). Parents reported daily symptoms of food aversion through all age groups, like food refusal 2 (IQR: 1-3), gagging 1 (IQR: 0-3), vomiting 1 (0.1-2) and total symptoms 6 (5-11). Vomiting was negatively correlated with weight and length percentile and head circumference. Cases with FTD show frequent and persistent food avoidant behaviors, which may be explain the need for specific psychological treatment during transitioning from tube dependency to oral eating.

Definitions and Clinical Guidance on the Enteral Dependence Component of the Avoidant/Restrictive Food Intake Disorder Diagnostic Criteria in Children.

The aim of the current article is to offer definitive guidance on weaning children who are reliant on nasogastric/gastrostomy feeding tubes. To date, no internationally recognized definitions or principles for interventions exist, and clinics have been reliant on creating their own unique intervention criteria. To achieve the aim, 2 goals are set out within the current article. The first goal was to definitively define the process of tube weaning. To achieve this, both tube dependency and oral eating also required definitions. It is necessary for these 2 additional definitions to fully understand the process of tube weaning and the transition that the child is making within these clinical interventions. The second goal of this article was to propose a set of minimum measurement criteria within a tube weaning protocol so that different clinical practices and perspectives may be measured accurately. This would then allow outcomes from different clinical services to be compared for efficacy. The culmination of this article is a set of 5 core principles that should govern clinics that adhere to the auspices of evidence-based practice. These principles, if adopted, will provide the basis of a set of internationally recognized criteria within this field of pediatric gastroenterology.

Screening Avoidant/Restrictive Food Intake Disorder (ARFID) in children: Outcomes from utilitarian versus specialist psychometrics.

This study assessed the specificity and sensitivity of two commonly used psychometric methods to assess ARFID in children. To achieve this, a sample of 329 mothers and one father completed the Behavioral Pediatrics Feeding Assessment Scale (BPFAS) and the Child Food Neophobia Scale (CFNS). A Receiver Operating Characteristic (ROC) analysis indicated that both measures were able to successfully differentiate a known clinical sample from those of typically developing population. Although the BPFAS was more accurate at differentiating ARFID from the general population, the CFNS was acceptable and on some metrics better than its longer counterpart. The ability of a food neophobia scale to differentiate clinical and population samples, and detect gradation of food avoidance within the population sample, suggests that the multitude of psychometric measures available may be measuring similar constructs. Therefore, confidence can be expected in cross-site comparisons despite each using different psychometric measures of food avoidance in children.

[Not Available]. / Songenent-wohnung 2.0: Was Sonden-dependente Kinder brauchen.

A dramatic increase of home enteral nutrition in pediatric population has been reported over the last decade. Inpatient units discharge more and more children with nasogastric and G- tubes. And for certain percentage the feeding and eating behavior does not improve with time. But longer tube dependency frequently results in general food aversion and refusal. The assessment and treatment, we will line out in this paper, have shown high efficiency for children with feeding tube dependency. To improve the situation of children with feeding tube dependency more treatment facilities are needed. Furthermore early prevention program and feeding tube management should be established to prevent feeding tube dependency.

Posttraumatic feeding disorder in low birth weight young children: a nested case-control study of a home-based intervention program.

Low birth weight infants (LBW) are reported to be at risk for posttraumatic feeding disorder (PTFD). In this study, we evaluated the outcome of an intervention program for infants with PTFD. LBW infants with PTFD (N=21) completed feeding behavior questionnaires at entry and after completing the program and were compared to a matched control group. PTFD group infants showed a significantly high rate of food disorder symptoms at entry but not at follow-up compared to the control group. The intervention program for PTFD infants resulted in reduced feeding disorder symptoms.

Mutualism and asexual reproduction influence recognition genes in a fungal symbiont.

Mutualism between microbes and insects is common and alignment of the reproductive interests of microbial symbionts with this lifestyle typically involves clonal reproduction and vertical transmission by insect partners. Here the Amylostereum fungus-Sirex woodwasp mutualism was used to consider whether their prolonged association and predominance of asexuality have affected the mating system of the fungal partner. Nucleotide information for the pheromone receptor gene rab1, as well as the translation elongation factor 1α gene and ribosomal RNA internal transcribed spacer region were utilized. The identification of rab1 alleles in Amylostereum chailletii and Amylostereum areolatum populations revealed that this gene is more polymorphic than the other two regions, although the diversity of all three regions was lower than what has been observed in free-living Agaricomycetes. Our data suggest that suppressed recombination might be implicated in the diversification of rab1, while no evidence of balancing selection was detected. We also detected positive selection at only two codons, suggesting that purifying selection is important for the evolution of rab1. The symbiotic relationship with their insect partners has therefore influenced the diversity of this gene and influenced the manner in which selection drives and maintains this diversity in A. areolatum and A. chailletii.

Rapid home-based weaning of small children with feeding tube dependency: positive effects on feeding behaviour without deceleration of growth.

BACKGROUND: Oral aversion and feeding disorders occur frequently after long-term feeding via a tube. A rapid home-based tube-weaning programme that provides feeding disorder treatment under medical supervision to overcome oral aversion has been developed. AIMS: To describe the results of the 4-10-day rapid home-based feeding tube-weaning programme and to determine the prevalence of food aversion and the overall longitudinal effects on feeding behaviour and growth after treatment. SUBJECTS AND METHODS: The parents of children who participated in the programme between 2005 and 2007 were followed up via questionnaire in 2008. The questionnaire included inquiries about the characteristics of tube feeding, feeding behaviour and growth parameters. RESULTS: The study group comprised of 18 boys and 21 girls who, at entry, had a median age of 16 months (range, 5-57) and a median duration of tube feeding of 15 months (range, 3-56). The children were followed up for a median of 2 years after treatment (range, 1-3 years). The weaning programme established oral feeding in 89.7% of the children. In all cases where oral feeding was achieved, the feeding behaviour improved after treatment. The growth velocity of all children, as indicated by weight, length and body mass index (BMI), remained constant from the initial evaluation (BMI z-score M=-1.1 ± 1.7) to follow-up (BMI z-score M=-1.2 ± 1.1). CONCLUSIONS: This rapid weaning programme for children with feeding tube dependency (FTD) improved the feeding behaviour and was associated with constant growth velocity.

The impact of child tube feeding on maternal emotional state and identity: a qualitative meta-analysis.

Literature on mothers' acceptance of their children's tube feeding is heterogeneous. When a child is fed via gastrostomy, parents may report higher quality of life and higher stress levels. Qualitative research suggests that tube feeding can conflict with fundamental expectations about the mothering role. In this qualitative meta-analysis, parental statements from various studies have been excerpted and theory-based analyzed. Data suggest that feeding a child orally is not only an important aspect of mothering but also a key element for the development of a motherhood identity. Nonoral feeding often results in psychological stress and a struggle to negotiate the motherhood identity successfully and may result in traumatization of the mother. Preventive psychological guidance is recommended to decrease the risk of posttraumatic stress disorder in mothers and disturbances in the mother-child relationship and to assist in maternal coping with a child's feeding disorder.