Comparison of volatile compounds in Retanilla trinervia [Gillies & Hook] Hook & Arn honeys from central Chile

The search for chemical markers for determining honey authenticity as a complementary tool for melissopalynological method is an important issue in the study of honeys from different botanical origins. The objective of this study was to determine the volatile compounds in tevo (Retanilla trinervia [Gillies & Hook] Hook & Arn [Fam. Rhamnaceae]) honey as one of the most relevant honeys from central Chile. For the identification and quantification of volatile compounds, Solid-Phase Microextraction and Gas Chromatography with Mass Spectrometry (SPME-GC-MS) was performed. A total of 28 out of 103 volatile compounds were found common to the five tevo honeys analyzed. Nevertheless, these compounds are common in unifloral honey of different floral sources from other countries. These results represent the first record in the identification of volatile compounds in tevo honey and would indicate that tevo honey does not present specific volatile compounds that allow its clear differentiation from other unifloral honey

Actividad antioxidante y antimicrobiana de mieles monoflorales de plantas nativas chilenas

Chile presenta una gran diversidad de especies vegetales endémicas y nativas que pueden dar origen a mieles producidas por Apis mellifera. En base a la  diversidad de mieles poliflorales y monoflorales que han sido identificadas anteriormente en Chile, se propuso estudiar la actividad antioxidante y biológica  para controlar el crecimiento de microorganismos patógenos. El objetivo de este estudio fue determinar el contenido de fenoles totales, actividad antioxidante  (Métodos de FRAP y DPPH) y la actividad antibacteriana de mieles monoflorales de plantas nativas chilenas. Se utilizaron 59 mieles de diferente origen  geográfico para determinar su origen botánico, mediante análisis melisopalinológico. La actividad antibactariana se evaluó contra Escherichia coli,  Pseudomonas aeruginosa, Staphylococcus aureus y Streptococcus pyogenes, determinando la concentración mínima bactericida (CMB). Los resultados  indicaron que las mieles nativas de Chile muestran diferencias significativas tanto en la actividad antioxidante como en la actividad contra patógenos, la que  depende del origen botánico y geográfico, pudiendo estar asociada al contenido de polifenoles

Neuropsychological profiles and neural correlates in typical and atypical variants of Alzheimer disease: A systematic qualitative review

Introduction: Neuropsychological symptoms and cortical atrophy patterns show similarities between typical Alzheimer’s Disease (AD) and its variants. Thus, correct diagnosis is difficult, leading to errors in the therapeutic process. Indeed, the challenge in cognitive neuroscience focuses on identifying key features of cognitive-linguistic profiles and improving the knowledge of neural correlates for accurate differential diagnosis between the heterogeneous profiles of typical and atypical AD. Aim: This systematic review aims to describe different AD profiles, considering their neuropsychological symptoms and neural correlates. Methods: The present study followed the PRISMA guidelines and included studies from the PubMed, ScienceDirect, Scopus, and Web of Science databases, published between 2011 and 2021. Results: Thirty-one articles were included in this systematic review for critical analysis. Results suggest significant declines in episodic and working memory and executive function. Likewise, in all groups, verbal fluency and visuospatial/visuoconstructive skills declined. However, these symptoms overlap between typical AD, logopenic variant primary progressive aphasia, posterior cortical atrophy, behavioural/dysexecutive or frontal variant AD, and corticobasal syndrome. On the other hand, the neural correlate showed a pattern of atrophy in frontal, temporal, parietal, and occipital areas, even compromising the cuneus and precuneus. Conclusion: Spontaneous language and semantic and phonological verbal fluency could be an important biomarker for differential diagnosis between typical AD and its atypical variants. Likewise, clinical assessment should consider using advanced neuroimaging techniques to establish early associations between brain dysfunction and neuropsychological performance, with particular attention to brain areas such as the cuneus and precuneus

Effectiveness, retrievability, and safety of celect vs. ALN inferior vena cava filters: a randomized prospective multicenter controlled study

The purpose of this study is to compare IVC Celect and ALN filters in regard to their efficacy, retrievability, and one-year follow-up after retrieval. Materials and Methods: This is a prospective randomized study, conducted in three centers between April 2020 and May 2021. A total of 115 participants were randomized, of which 15 participants were excluded for various reasons. Each group of 50 participants was finally assigned a type of filter (Celect n = 50 and ALN = 50). Tilt angles at placement and retrieval, rates of overall filter retrieval, complications, complex retrieval, and clinical follow-up at 12 months were compared. Results: One hundred participants (59 men and 41 women) were included. The mean age was 62.4 ± 13.3, with no significant differences between both groups (p 0.503). The mean of dwelling time was 44.7 ± 93 days. (p 0.520) Filter retrieval was successful in all participants (100%). The main complication in CT prior to removal was tilt >15° (31%) and filter tip embedment (16%). No significant differences were observed in the type of retrieval (standard or complex) between both filters (p 0.24); however, fluoroscopy time was significantly longer in the complex removal of the Celect filter: 29.1 ± 12 min vs. 17.5 ± 10.3 (p 0.005). After one year, no recurrent pulmonary embolism was observed in both types of filters. Conclusions: The ALN filter had a significantly lower rate of tip and filter tip embedding, with no differences in complexity or removal success rate. There were significant differences in the fluoroscopy time consumed for standard and complex retrievals between both filters, with less time for the ALN filter

A comparative study of a small series of patients (50 patients) with pelvic varicose veins treated with plugs alone or plugs and polidocanol

Level of Evidence: Level 2. Purpose: To compare the safety and efficacy of vascular plug (VP) and vascular plug and polidocanol foam (VPPF) treatments for embolization in pelvic congestion syndrome (PCS). Materials and methods: A comparative, prospective, two-center study enrolled 50 women with PCS from January 2019 to January 2020. The patients were divided into two groups, and embolization was performed with VP (n = 25) and VPPF (n = 25) treatments. The mean age of the patients was 45.6 years ± 6.9. Three clinical parameters were assessed: abdominal pain, dyspareunia, and lower limb pain. The primary outcome (clinical success at 1 yr using a VAS), number of devices, procedure and fluoroscopy times, radiation doses, costs, and complications were compared. The participants were followed-up at 1, 3, 6, and 12 months. Results: At the 1-year follow-up, clinical success did not significantly differ between the two groups (VP vs. VPPF) regarding the improvement of the symptoms analyzed (pelvic pain, dyspareunia, lower extremity pain, and other symptoms (p < 0.05)). The mean number of devices per case was 4 ± 1.1 for the VP group and 2 ± 0.31 for the VPPF group (p < 0.001). No major complications were recorded in either group. The VPPF group had a significantly longer fluoroscopy time (42.8 min ± 14.2 vs. 25.4 min ± 7) and longer radiation dose (VPPF air kerma 839.4 ± 513 vs. VP air kerma 658.4 mGy ± 355 (all p < 0.001)). Conclusions: Embolization for PCS resulted in pain relief in 90% of patients; the use of polidocanol did not demonstrate changes in the clinical outcome. The use of a VP alone was associated with decreased fluoroscopy time and radiation dose

Diversidad, inclusión y aprendizaje ¿Hacía dónde y cómo puede evolucionar el escenario “Trayectorias educativas flexibles y autogestionadas (Carnavalito)” En los próximos 10 años, según los medios de comunicación masiva?

Fil: Bertolez, Alejandra Marta. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Cipollone, Martín Daniel. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Erramouspe, Carolina del Valle. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Fredes Quiroz, Karen. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: González Yepes, Esteban. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Guzmán, Clara Mabel. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Heredia, María Carolina. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Heredia, María Carolina. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Monzón, Nancy. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Morales, María Celeste. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Olivera, Susana. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Pellizón, Telma de Lourdes. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Pérez Gaudio, José Miguel. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Pérez Moreno, Elena Silvia. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Porello, Andrea Silvina. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Previgliano, Silvia. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Rubiolo, Paula. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Sierra Puerto, Luz Dary. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Skiba, María Marta. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Tapia Figueroa, Andrea del Pilar. Universidad Católica de Córdoba. Facultad de Educación, ArgentinaFil: Taranzano, Gabriela Susana. Universidad Católica de Córdoba. Facultad de Educación, Argentin

BacHBerry: BACterial Hosts for production of Bioactive phenolics from bERRY fruits

BACterial Hosts for production of Bioactive phenolics from bERRY fruits (BacHBerry) was a 3-year project funded by the Seventh Framework Programme (FP7) of the European Union that ran between November 2013 and October 2016. The overall aim of the project was to establish a sustainable and economically-feasible strategy for the production of novel high-value phenolic compounds isolated from berry fruits using bacterial platforms. The project aimed at covering all stages of the discovery and pre-commercialization process, including berry collection, screening and characterization of their bioactive components, identification and functional characterization of the corresponding biosynthetic pathways, and construction of Gram-positive bacterial cell factories producing phenolic compounds. Further activities included optimization of polyphenol extraction methods from bacterial cultures, scale-up of production by fermentation up to pilot scale, as well as societal and economic analyses of the processes. This review article summarizes some of the key findings obtained throughout the duration of the project

The Encapsulation of Anthocyanins from Berry-Type Fruits. Trends in Foods

During the last decade, many berry-type fruits have been recognised as good sources of anthocyanins. Nevertheless, the use of anthocyanins in the development of food colourants and healthy and/or functional ingredients has been limited because of their low stability under given environmental conditions and interaction with other compounds in the food matrix. This review compiles information about the encapsulation of anthocyanins from twelve different berry-type fruit species as a technology for improving the stability and/or bioavailability of anthocyanins. Encapsulation by spray drying has been the primary method used to encapsulate anthocyanins, and some studies attempt to keep anthocyanin microparticles stable during storage. Nevertheless, more studies are needed to determine the stability of anthocyanin microparticles in food matrices over the product shelf life in the development of food colourants. Studies about encapsulated anthocyanins in simulated gastrointestinal models have primarily been conducted on the release of anthocyanins from microparticles to evaluate their bioavailability. However, adding anthocyanin microparticles to a food vehicle must guarantee the health properties attributed to the specific anthocyanins present in berry-type fruits