118 research outputs found
An overview of pharmacological and non-pharmacological treatment as a useful tool for the protection from cardiotoxicity of antineoplastic drugs
© 2020, University of Kragujevac, Faculty of Science. All rights reserved. Unfortunately, in patients with cancer disease, clinical application of antineoplastic drug results in severe side effects of cardiotoxicity. We aim to review the research focused on elimination or reduction of antineoplastic drug-induced cardiotoxicity without affecting its anticancer efficacy by different agens. This study is based on pertinent papers that were re-trieved by a selective search using relevant keywords in PubMed and ScienceDirect. Based on mentioned purpose, various strategies were investigated and proposed, and thou-sands of compounds were screened. The literature mainly focusing on drugs, natural products and herb extracts with therapeutic efficacies as well as non-pharmacological treatment against differently induced cardiotoxicity during treatment in patients with cancers. Larger future studies are necessary to reach a point of secure cytostatic therapy, improved patient survival and qu-ality of life. Until that moment, baseline and serial cardiac evaluation is recommended to facilitate early identification and treatment of cardiotoxicity
Spirulina Phycobiliproteins as Food Components and Complements
Spirulina has a documented history of use as a food for more than 1000 years, and has been in production as a dietary supplement for 40 years. Among many of Spirulina bioactive components, blue protein C-phycocyanin and its linear tetrapyrrole chromophore phycocyanobilin occupy a special place due to broad possibilities for application in various areas of food technology. The subject of this chapter is up-to-date food applications of these Spirulina components, with a focus on their use as food colorants, additives, nutriceuticals, and dietary supplements. Their other actual and future food application possibilities will also be briefly presented and discussed
Amplatzer оклузија на паравалвуларен leak на механичка протеза по реоперација на дехисценција на митрална механичка протеза- Приказ на случај
Во трудот се опишува случајот на 46-годишна жена со парававуларното протекување или leak по второ заменување на митрална механичка протеза, кој е успешно третиран со Amplatzer оклузија на паравалвуларниот leak
Probing the stability of the food colourant R-phycoerythrin from dried Nori flakes
The high content of vitamins, minerals, antioxidants, and proteins makes red algae Porphyra sp. (Nori) superfood with exceptional health-promoting benefits. Its intense colour originates from R-phycoerythrin (R-PE), phycobiliprotein containing covalently attached tetrapyrrole chromophores: red phycoerythrobilin and orange phycourobilin. The present study aims to characterize the stability of R-PE, a natural colourant with a high potential for application in the food, cosmetic, and pharmaceutical industries. We purified R-PE from dried Nori flakes with a high purity ratio (A560 /A280 ≥5). Far-UV CD spectroscopic showed that α-helix is the dominant secondary structure (75%). The thermal unfolding of α-helix revealed two transitions (Tm1 and Tm2 at 56 and 72°C, respectively), ascribed to the different subunits of R-PE. Absorption measurements showed that high pressure (HP) induces dissociation of R-PE into subunits followed by subunit unfolding. Contrary to temperature, HP treatment showed a significant advantage under applied conditions: the protein unfolding is partly reversible, and the R-PE colour bleaching is minimized. Based on the fluorescence quenching approach, R-PE's binding affinities for Cu2+ and Zn2+ ions were 6.27x105 and 1.71x103 M-1, respectively. Absorption and near-UV/VIS CD spectroscopy suggested conformational changes in protein chromophores upon metal ions binding. Far-UV CD spectroscopy did not reveal that metal binding affects R-PE structure. The obtained results give new insights into the stability of R-PE with a good use-value in replacement of toxic synthetic dyes, preservation of R-PE red colour in fortified food and beverages by HP processing, and as a biosensor for Cu2+ in aquatic life systems.
Acknowledgments: This study was financially supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia, Contract number: 451-03-9/2021-14/200168 and the European Commission, under the Horizon2020, FoodEnTwin Project, GA No. 810752
Disseminated Neonatal Herpes Caused by Herpes Simplex Virus Types 1 and 2
Disseminated neonatal herpes simplex virus (HSV) infection is characterized by progressive multiple organ failure and high mortality rates. It can result from infection with either HSV-1 or HSV-2. We report a case of disseminated neonatal herpes that was caused by HSV-1 and HSV-2
Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food
Panel members: Margherita Bignami, Laurent Bodin, James Kevin Chipman, Jesus del Mazo, BettinaGrasl-Kraupp, Christer Hogstrand, Laurentius (Ron) Hoogenboom, Jean-Charles Leblanc, Carlo StefanoNebbia, Elsa Nielsen, Evangelia Ntzani, Annette Petersen, Salomon Sand, Dieter Schrenk, TanjaSchwerdtle, Christiane Vleminckx and Heather Wallace Requestor: European Commission Question number: EFSA‐Q‐2018‐00433 Acknowledgements: The Panel wishes to thank the hearing experts: Cathy Fernandes and Henri Schroeder, and EFSA staff members: Kelly Niermans and Federico Cruciani, for the support provided to this scientific output. The Panel wishes to acknowledge all European competent institutions and Member State bodies that provided consumption and occurrence data for this scientific output. Data: All annexes on occurrence and exposure data, as well as the protocol used to produce this Scientific opinion, cross‐referenced in the text, are available on the EFSA Knowledge Junction at: https://doi.org/10.5281/zenodo.4475651Peer reviewedPublisher PD
Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food: Occurrence data in food submitted to EFSA and dietary exposure assessment for humans
Annex A – Protocol for the risk assessments for human health related to the presence of brominated flame retardants (BFRs) in food
The Annex is provided as a separate pdf file containing the risk assessment protocol selected by the CONTAM Panel to update the previous risk assessments of brominated flame retardants (BFRs) in food.
Annex B: Occurrence data on HBCDDs in food submitted to EFSA and dietary surveys per country and age group available in the EFSA Comprehensive Database, considered in the exposure assessment
Table B.1 Number of analytical results excluded from the initial dataset during data cleaning, and justification for exclusion
Table B.2 Occurrence values of HBCDDs calculated total (µg/kg) by food category in the final dataset
Table B.3 Food categories of FoodEx and mean LB and UB values as used for the exposure assessment
Table B.4 Dietary surveys and the number of subjects by country and population class, available for the chronic exposure assessment, in the EFSA Comprehensive European Food Consumption Database
Table B.5 Summary statistics on data reported for HBCDDs total, analysed with GC-MS, not considered for the exposure
Figure B.1 Frequency distribution of the occurrence values for the food categories of interest at the LB without zeros presented on a log 10 scale
Figure B.2 Frequency distribution of the occurrence values for the food categories of interest at the UB presented on a log 10 scale
HBCDDs_Raw_Occurrence_Data.CSV contains the raw occurrence dataset on Hexabromocyclododecanes (HBCDDs) contaminant as extracted from EFSA DWH in December 2019 on 2530 food samples presented in the opinion as described in its section 3.2.1. Occurrence data submitted to EFSA. The data is provided in .csv format. This dataset is compliant with EFSA SSD model and contains two additional columns documenting issues identified in the cleaning process (column: issue) and the action taken (column: outcome) to address the issue (e.g. delete record or update values in specific fields).
The link to the catalogues of controlled terminologies can be found under "Related identifiers”.
Annex D: Chronic dietary exposure to HBCDDs and the contribution of different food groups to the dietary exposure
Table D.1 Mean chronic dietary exposure (ng/kg b.w. per day) to HBCDDs for total population across European dietary surveys
Table D.2 95th percentile chronic exposures to HBCDDs (ng/kg b.w. per day) for total population for each dietary survey across age classes
Table D.3 Relative contribution (%) of food categories to the LB and UB estimates of dietary exposure to HBCDDs across different age classes, dietary surveys and countries
Table D.4 Relative contribution of food categories to the LB estimates of dietary exposure to HBCDDs and related figure
Table D.5 Relative contribution of food categories to the UB estimates of dietary exposure to HBCDDs and related figure
Annex E – Outcome of the Public consultation on the Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food
The Annex is provided as a separate pdf file contain the outcome of the public consultation of the
draft scientific Opinion, including the comments received and how they were taken into account when
finalising the scientific OpinionPeer reviewe
Discutindo a educação ambiental no cotidiano escolar: desenvolvimento de projetos na escola formação inicial e continuada de professores
A presente pesquisa buscou discutir como a Educação Ambiental (EA) vem sendo trabalhada, no Ensino Fundamental e como os docentes desta escola compreendem e vem inserindo a EA no cotidiano escolar., em uma escola estadual do município de Tangará da Serra/MT, Brasil. Para tanto, realizou-se entrevistas com os professores que fazem parte de um projeto interdisciplinar de EA na escola pesquisada. Verificou-se que o projeto da escola não vem conseguindo alcançar os objetivos propostos por: desconhecimento do mesmo, pelos professores; formação deficiente dos professores, não entendimento da EA como processo de ensino-aprendizagem, falta de recursos didáticos, planejamento inadequado das atividades. A partir dessa constatação, procurou-se debater a impossibilidade de tratar do tema fora do trabalho interdisciplinar, bem como, e principalmente, a importância de um estudo mais aprofundado de EA, vinculando teoria e prática, tanto na formação docente, como em projetos escolares, a fim de fugir do tradicional vínculo “EA e ecologia, lixo e horta”.Facultad de Humanidades y Ciencias de la Educació
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