Results of surgical treatment of patients with aortoiliac atherosclerosis

АТЕРОСКЛЕРОЗАРТЕРИОСКЛЕРОЗАТЕРОСКЛЕРОЗАОРТЫ АНЕВРИЗМААОРТЫ АНЕВРИЗМЫ РАЗРЫВАОРТЫ РАЗРЫВАОРТО-ПОДВЗДОШНАЯ РЕКОНСТРУКЦИЯ /ХИРКРИТИЧЕСКАЯ ИШЕМИЯ КОНЕЧНОСТИ /ДИАГНЦель. Изучить результаты хирургического лечения пациентов с аорто-подвздошной патологией в раннем послеоперационном периоде. Материал и методы. В исследование включено 103 пациента с аортальной патологией, которые были направлены в клинику сосудистой хирургии с 2015 по 2017 гг. Прооперировано 53 пациента с аорто-подвздошным атеросклерозом и 50 пациентов с аневризмой абдоминальной аорты. Показанием к операции были перемежающаяся хромота, критическая ишемия конечности или острый тромбоз аорты у пациентов с аорто-подвздошным атеросклерозом. Показанием к операции у пациентов с аневризмой абдоминальной аорты была аневризма более 5,5 см в поперечном диаметре или разрыв аневризмы. Ранние результаты хирургического лечения пациентов оценивали по частоте послеоперационных осложнений и летальных исходов. Результаты. Из 53 пациентов с аорто-подвздошным атеросклерозом 49 (92,5%) пациентов были прооперированы в плановом порядке и 4 (7,5%) пациента были прооперированы ургентно. Выполнено 52 (98,2%) аорто-бифеморальных шунтирования и один (1,8%) аорто-феморальный (односторонний) шунт. Три осложнения (6,1%) наблюдались у пациентов, которые были прооперированы в плановом порядке, и одно осложнение (25%) у пациента, которого оперировали в ургентном порядке. Среди ургентных пациентов смертность составила 25%, среди плановых – 2,0%. Прооперированы 28 пациентов с бессимптомной аневризмой абдоминальной аорты и 22 пациента с разрывом аневризмы абдоминальной аорты. Смертность после плановой операции составила 3,6%. У пациентов с разрывом аневризмы абдоминальной аорты смертность составила 40,9%. Заключение. Хорошие и удовлетворительные результаты планового хирургического лечения симптоматического аорто-подвздошного атеросклероза в раннем послеоперационном периоде составили 98%, асимптоматической аневризмы аорты – 96,4%. Смертность после ургентной операции при разрыве аневризмы составила 40,9%. Хирургическое лечение аневризмы аорты показано у пациентов с низким и средним хирургическим риском.Objective. To investigate the results of surgical treatment of patients with aortoiliac pathology in the early postoperative period. Methods. In the study 103 patients with aortoiliac pathology were included, who were referred to the Clinic of Vascular Surgery from 2015 to 2017 years. 53 patients were operated on because of aortoiliac atherosclerosis and 50 patients – because of abdominal aortic aneurysm. The indications for surgery were limiting claudication, critical limb ischemia or acute thrombosis of the aorta in patients with aortoiliac atherosclerosis. The indication for surgery in patients with abdominal aortic aneurysm was the aneurysm over 5.5 cm in the transverse diameter or the ruptured aneurysm. Early results of patients’ surgical treatment were assessed by the frequency of postoperative complications and deaths. Results. 49 (92.5%) out of 53 patients with aortoiliac atherosclerosis were operated on as planned and 4 (7.5%) patients were operated on urgently. 52 (98.2%) aortobifemoral bypasses and one (1.8%) aortofemoral (unilateral) bypass were performed. Three complications (6.1%) occurred postoperatively in patients operated on according to plan and one complication (25%) – in patients operated urgently. The mortality rate was 25% in urgent patients and 2.0% in planned patients. 28 patients with asymptomatic abdominal aortic aneurysm and 22 with the ruptured abdominal aortic aneurysm were operated on. The mortality in the planned patients was 3.6%. 40.9% mortality rate was registered in the ruptured abdominal aortic aneurysm patients. Conclusions. Early good and satisfactory results of the routine surgical treatment of symptomatic aortoiliac atherosclerosis in the early postoperative period accounted 98%, asymptomatic aortic aneurysm – 96.4%. Mortality after urgent surgery with aneurysm rupture made up 40.9%. Surgical treatment of aortic aneurysm is indicated in patients with low and moderate surgical risk

Результаты симультанных операций у пациентов с атеросклеротическим поражением сонных и коронарных артерий

СОННЫЕ АРТЕРИИАТЕРОСКЛЕРОЗАРТЕРИОСКЛЕРОЗКОРОНАРНЫХ АРТЕРИЙ СТЕНОЗКАРОТИДНАЯ ЭНДАРТЕРЭКТОМИЯСОННОЙ АРТЕРИИ ЭНДАРТЕРЭКТОМИЯСТЕНОКАРДИЯАОРТОКОРОНАРНОЕ ШУНТИРОВАНИЕКОРОНАРНОЙ АРТЕРИИ ШУНТИРОВАНИ

Professional Training in Beekeeping: A Cross-Country Survey to Identify Learning Opportunities

first_pagesettingsOrder Article Reprints Open AccessArticle Professional Training in Beekeeping: A Cross-Country Survey to Identify Learning Opportunities by Raquel P. F. Guiné 1ORCID,Jorge Oliveira 1ORCID,Catarina Coelho 1,2,*ORCID,Daniela Teixeira Costa 1,Paula Correia 1ORCID,Helena Esteves Correia 1ORCID,Bjørn Dahle 3,Melissa Oddie 3,Risto Raimets 4,Reet Karise 4ORCID,Luis Tourino 5,Salvatore Basile 6,Emilio Buonomo 6,Ivan Stefanic 7 andCristina A. Costa 1ORCID 1 CERNAS Research Centre, Polytechnic Institute of Viseu, 3504-510 Viseu, Portugal 2 CECAV, Animal and Veterinary Research Center, University of Trás-os-Montes e Alto Douro, Quinta de Prados, Apartado 1013, 5000-801 Vila Real, Portugal 3 Norwegian Beekeepers Association, 2040 Kløfta, Norway 4 Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51014 Tartu, Estonia 5 Eosa Estrategia y Organización SA, 36202 Vigo, Spain 6 Bio-Distretto Cilento, 84052 Salerno, Italy 7 Tera Tehnopolis, 31000 Osijek, Croatia * Author to whom correspondence should be addressed. Sustainability 2023, 15(11), 8953; https://doi.org/10.3390/su15118953 Received: 21 April 2023 / Revised: 24 May 2023 / Accepted: 31 May 2023 / Published: 1 June 2023 (This article belongs to the Special Issue Prospects Challenges and Sustainability of the Agri-Food Supply Chain in the New Global Economy II) Download Browse Figures Review Reports Versions Notes Abstract Habitat loss, climate change, and other environmental degradations pose severe challenges to beekeepers. Therefore, this sector needs to rely on updated information so that the intervening actors can deal with the problems. In this context, and assuming that professional training can greatly help those acting in the beekeeping sector, this work intended to investigate the gaps in the updated knowledge of beekeepers and how these can be filled through lifelong learning. The research was conducted in seven European countries (Croatia, Estonia, Finland, Italy, Norway, Portugal, and Spain). The data were collected through a questionnaire survey translated into the native languages of all participating countries. The results revealed that the topics of highest interest are apiary health and pest control and the management of the colonies throughout the year. The beekeepers update their knowledge through family, complemented by professional training, with participants preferring in-person courses as well as, in the workplace or in internships. The learning methodologies they consider most useful are project-based learning and learning through gamification. The videos and paper books or manuals are particularly valued as learning materials, and practical exercises are considered the most helpful assessment format. Finally, considering the effect of sociodemographic variables on the learning experiences and preferences of beekeeping actors, it was observed that the country was the most influential of the variables under study. In conclusion, this work revealed valuable information that should be used to design professional training actions to help the professionals in the beekeeping sector enhance their competencies and be better prepared to manage their activities successfully.info:eu-repo/semantics/publishedVersio

Kin discrimination promotes horizontal gene transfer between unrelated strains in Bacillus subtilis.

This is the final version. Available from Nature Research via the DOI in this record. The data that support the findings of this study are available from the corresponding author upon reasonable request and in Source Data file. Genome sequences are available in the NCBI database under genome accession numbers VBRL00000000, VBRM00000000, VBRN00000000, VBRO00000000, VBRQ00000000 and VBRR00000000. Source data are provided with this paper.Bacillus subtilis is a soil bacterium that is competent for natural transformation. Genetically distinct B. subtilis swarms form a boundary upon encounter, resulting in killing of one of the strains. This process is mediated by a fast-evolving kin discrimination (KD) system consisting of cellular attack and defence mechanisms. Here, we show that these swarm antagonisms promote transformation-mediated horizontal gene transfer between strains of low relatedness. Gene transfer between interacting non-kin strains is largely unidirectional, from killed cells of the donor strain to surviving cells of the recipient strain. It is associated with activation of a stress response mediated by sigma factor SigW in the donor cells, and induction of competence in the recipient strain. More closely related strains, which in theory would experience more efficient recombination due to increased sequence homology, do not upregulate transformation upon encounter. This result indicates that social interactions can override mechanistic barriers to horizontal gene transfer. We hypothesize that KD-mediated competence in response to the encounter of distinct neighbouring strains could maximize the probability of efficient incorporation of novel alleles and genes that have proved to function in a genomically and ecologically similar context.Slovenian Research Agency (ARRS

Transcriptome analyses of the Giardia lamblia life cycle

Author Posting. © The Author(s), 2010. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Molecular and Biochemical Parasitology 174 (2010): 62-65, doi:10.1016/j.molbiopara.2010.05.010.We quantified mRNA abundance from 10 stages in the Giardia lamblia life cycle in vitro using Serial Analysis of Gene Expression (SAGE). 163 abundant transcripts were expressed constitutively. 71 transcripts were upregulated specifically during excystation and 42 during encystation. Nonetheless, the transcriptomes of cysts and trophozoites showed major differences. SAGE detected co-expressed clusters of 284 transcripts differentially expressed in cysts and excyzoites and 287 transcripts in vegetative trophozoites and encysting cells. All clusters included known genes and pathways as well as proteins unique to Giardia or diplomonads. SAGE analysis of the Giardia life cycle identified a number of kinases, phosphatases, and DNA replication proteins involved in excystation and encystation, which could be important for examining the roles of cell signaling in giardial differentiation. Overall, these data pave the way for directed gene discovery and a better understanding of the biology of Giardia lamblia.BJD, DSR, and FDG were supported by NIH grants AI42488, GM61896, DK35108, and AI051687. DP and SGS were supported by grants from the Swedish Natural Science Research Council, the Swedish Medical Research Council, and the Karolinska Institutet. AGM, SRB, SPP, and MJC were supported by NIH grant AI51089 and by the Marine Biological Laboratory’s Program in Global Infectious Diseases, funded by the Ellison Medical Foundation

Selective Condensation Drives Partitioning and Sequential Secretion of Cyst Wall Proteins in Differentiating Giardia lamblia

Controlled secretion of a protective extracellular matrix is required for transmission of the infective stage of a large number of protozoan and metazoan parasites. Differentiating trophozoites of the highly minimized protozoan parasite Giardia lamblia secrete the proteinaceous portion of the cyst wall material (CWM) consisting of three paralogous cyst wall proteins (CWP1–3) via organelles termed encystation-specific vesicles (ESVs). Phylogenetic and molecular data indicate that Diplomonads have lost a classical Golgi during reductive evolution. However, neogenesis of ESVs in encysting Giardia trophozoites transiently provides basic Golgi functions by accumulating presorted CWM exported from the ER for maturation. Based on this “minimal Golgi” hypothesis we predicted maturation of ESVs to a trans Golgi-like stage, which would manifest as a sorting event before regulated secretion of the CWM. Here we show that proteolytic processing of pro-CWP2 in maturing ESVs coincides with partitioning of CWM into two fractions, which are sorted and secreted sequentially with different kinetics. This novel sorting function leads to rapid assembly of a structurally defined outer cyst wall, followed by slow secretion of the remaining components. Using live cell microscopy we find direct evidence for condensed core formation in maturing ESVs. Core formation suggests that a mechanism controlled by phase transitions of the CWM from fluid to condensed and back likely drives CWM partitioning and makes sorting and sequential secretion possible. Blocking of CWP2 processing by a protease inhibitor leads to mis-sorting of a CWP2 reporter. Nevertheless, partitioning and sequential secretion of two portions of the CWM are unaffected in these cells. Although these cysts have a normal appearance they are not water resistant and therefore not infective. Our findings suggest that sequential assembly is a basic architectural principle of protective wall formation and requires minimal Golgi sorting functions

Morphology and Photoluminescence of HfO2Obtained by Microwave-Hydrothermal

In this letter, we report on the obtention of hafnium oxide (HfO2) nanostructures by the microwave-hydrothermal method. These nanostructures were analyzed by X-ray diffraction (XRD), field-emission gum scanning electron microscopy (FEG-SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectrometry (EDXS), ultraviolet–visible (UV–vis) spectroscopy, and photoluminescence (PL) measurements. XRD patterns confirmed that this material crystallizes in a monoclinic structure. FEG-SEM and TEM micrographs indicated that the rice-like morphologies were formed due to an increase in the effective collisions between the nanoparticles during the MH processing. The EDXS spectrum was used to verify the chemical compositional of this oxide. UV–vis spectrum revealed that this material have an indirect optical band gap. When excited with 488 nm wavelength at room temperature, the HfO2nanostructures exhibited only one broad PL band with a maximum at around 548 nm (green emission)

Protein phosphatase 2A plays a crucial role in Giardia lamblia differentiation

Author Posting. © The Authors, 2006. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Molecular and Biochemical Parasitology 152 (2007): 80-89, doi:10.1016/j.molbiopara.2006.12.001.The ability of Giardia lamblia to undergo two distinct differentiations in response to physiologic stimuli is central to its pathogenesis. The giardial cytoskeleton changes drastically during encystation and excystation. However, the signal transduction pathways mediating these transformations are poorly understood. We tested the hypothesis that PP2A, a highly conserved serine/threonine protein phosphatase, might be important in giardial differentiation. We found that in vegetatively growing trophozoites, gPP2A-C protein localizes to basal bodies/centrosomes, and to cytoskeletal structures unique to Giardia: the ventral disk, and the dense rods of the anterior, posterior-lateral, and caudal flagella. During encystation, gPP2A-C protein disappears from only the anterior flagellar dense rods. During excystation, gPP2A-C localizes to the cyst wall in excysting cysts but is not found in the wall of cysts with emerging excyzoites. Transcriptome and immunoblot analyses indicated that gPP2A-C mRNA and protein are upregulated in mature cysts and during the early stage of excystation that models passage through the host stomach. Stable expression of gPP2A-C antisense RNA did not affect vegetative growth, but strongly inhibited the formation of encystation secretory vesicles (ESV) and water-resistant cysts. Moreover, the few cysts that formed were highly defective in excystation. Thus, gPP2A-C localizes to universal cytoskeletal structures and to structures unique to Giardia. It is also important for encystation and excystation, crucial giardial transformations that entail entry into and exit from dormancy.This work was funded by NIH grants GM61896, AI51687, AI42488, and DK35108. Dr. A.G. McArthur was supported by NIH grant AI51089 and the Marine Biological Laboratory’s Program in Global Infectious Diseases, funded by the Ellison Medical Foundation

Ragweed as an Example of Worldwide Allergen Expansion

<p/> <p>Multiple factors are contributing to the expansion of ragweed on a worldwide scale. This review seeks to examine factors that may contribute to allergen expansion with reference to ragweed as a well-studied example. It is our hope that increased surveillance for new pollens in areas not previously affected and awareness of the influence the changing environment plays in allergic disease will lead to better outcomes in susceptible patients.</p

Detection of Echinococcus multilocularis in Carnivores in Razavi Khorasan Province, Iran Using Mitochondrial DNA

Echinococcus multilocularis causes alveolar echinococcosis, a serious zoonotic disease present in many areas of the world. The parasite is maintained in nature through a life cycle in which adult worms in the intestine of carnivores transmit infection to small mammals, predominantly rodents, via eggs in the feces. Humans may accidentally ingest eggs of E. multilocularis through contact with the definitive host or by direct ingestion of contaminated water or foods, causing development of a multivesicular cyst in the viscera, especially liver and lung. We found adult E. multilocularis in the intestine and/or eggs in feces of all wild carnivores examined and in some stray and domestic dogs in villages of Chenaran region, northeastern Iran. The life cycle of E. multilocularis is being maintained in this area by wild carnivores, and the local population and visitors are at risk of infection with alveolar echinococcosis. Intensive health initiatives for control of the parasite and diagnosis of this potentially fatal disease in humans, in this area of Iran, are needed