Computational discovery of novel anthelmintic natural compounds from Agave Brittoniana trel. Spp. Brachypus

Helminth infections are a medical problem in the world nowadays. This report used bond-based 2D quadratic indices, a bond-level QuBiLs-MAS molecular descriptor family, and Linear Discriminant Analysis (LDA) to obtain a quantitative linear model that discriminates between anthelmintic and non-anthelmintic drug-like organic-compounds. The model obtained correctly classified 87.46% and 81.82% of the training and external data sets, respectively. The developed model was used in a virtual screening to predict the biological activity of all chemicals (19) previously obtained and chemically characterized by some authors of this report from Agave brittoniana Trel. spp. Brachypus. The model identified several metabolites (12) as possible anthelmintics, and a group of 5 novel natural products was tested in an in vitro assay against Fasciola hepatica (100% effectivity at 500 µg/mL). Finally, the two best hits were evaluated in vivo in bald/c mice and the same helminth parasite using a 25 mg/kg dose. Compound 8 (Karatavinoside A) showed an efficacy of 92.2% in vivo. It is important to remark that this natural compound exhibits similar-to-superior activity as triclabendazole, the best human fasciolicide available in the market against Fasciola hepatica, resulting in a novel lead scaffold with anti-helminthic activity.15 página

Clinical Practice Guidelines for Encephalic Death Treatment

Clinical Practice Guidelines for Encephalic Death Treatment. It has been defined as the irreversible ceasing of all encephalic functions (cerebral hemispheres, of the encephalic stalk and cerebellum). This document includes the diagnostic criteria and its workflow and comments on the diagnostic tests and its legal aspects. It includes assessment guidelines focused on the most important aspects to be accomplished

Los principios bioéticos en la atención primaria de salud: Apuntes para una reflexión

Se realizó un estudio teórico basado en varias técnicas cualitativas, opinión de expertos en el tema y búsqueda bibliográfica, para la comprensión de los principios de la bioética en la atención primaria de salud, teniendo en cuenta el cambio de paradigma que se está dando en la concepción de la medicina.A theoretical study based on different qualitative techniques, the experts´criteria on the topic and literature review for understanding the principles of bioethics at primary health care was carried out, taking into account the change of paradigm that is taking place in the concepts of medicine nowadays

Clinical Practice Guidelines for Potential Donors Management

Clinical Practice Guidelines for Potential Donors Management. It has been defined as the patient in Glasgow coma with scale higher or equal to 8 who doesn´t present contradictions for transplant (possible donor) and who has been diagnosed of encephalic death. This document reviews and updates concepts, lists indications and contraindications for different organs donation, clinical assessment of the donor and its treatment. It includes assessment guidelines focused on the most important aspects to be accomplished

Clinical Practice Guidelines for Severe Sepsis Treatment.

Clinical Practice Guidelines for Severe Sepsis Treatment. It is a syndrome of inflammatory systemic response caused by documented infection (clinical and/or microbiological), associated with organic dysfunction (respiratory, renal, hepatic, cardiovascular, haematological and neurological), hypotension or hypoperfusion. This document includes a review and update of the concept, risk factors, diagnosis and treatment. It includes assessment guidelines focused on the most important aspects to be accomplished

Theoretical foundations of Florence Nightingale on hand hygiene. Notes for a reflection in times of COVID-19

A review is presented, from the paradigm of Florencia Nightingale, on her theoretical vision about hand hygiene. The main theoretical aspects expressed by her and her relationship with hand hygiene are analyzed, in addition to exposing, through the analysis of her theoretical contributions, her contribution to the development of nursing not only in Cuba but in the world, showing the importance that has this practice to combat a number of infectious diseases and very specifically COVID-19, since one of the most important measures to break its chain of transmission is precisely hand hygiene

Complex Networks Analyses of Antibiofilm Peptides: An Emerging Tool for Next-Generation Antimicrobials’ Discovery

Microbial biofilms cause several environmental and industrial issues, even affecting human health. Although they have long represented a threat due to their resistance to antibiotics, there are currently no approved antibiofilm agents for clinical treatments. The multi-functionality of antimicrobial peptides (AMPs), including their antibiofilm activity and their potential to target multiple microbes, has motivated the synthesis of AMPs and their relatives for developing antibiofilm agents for clinical purposes. Antibiofilm peptides (ABFPs) have been organized in databases that have allowed the building of prediction tools which have assisted in the discovery/design of new antibiofilm agents. However, the complex network approach has not yet been explored as an assistant tool for this aim. Herein, a kind of similarity network called the half-space proximal network (HSPN) is applied to represent/analyze the chemical space of ABFPs, aiming to identify privileged scaffolds for the development of next-generation antimicrobials that are able to target both planktonic and biofilm microbial forms. Such analyses also considered the metadata associated with the ABFPs, such as origin, other activities, targets, etc., in which the relationships were projected by multilayer networks called metadata networks (METNs). From the complex networks’ mining, a reduced but informative set of 66 ABFPs was extracted, representing the original antibiofilm space. This subset contained the most central to atypical ABFPs, some of them having the desired properties for developing next-generation antimicrobials. Therefore, this subset is advisable for assisting the search for/design of both new antibiofilms and antimicrobial agents. The provided ABFP motifs list, discovered within the HSPN communities, is also useful for the same purpose