Necesidad de la determinación inmunológica del Quantiferon (Interferón-gamma Relase-Assay) para el diagnóstico de la Infección Tuberculosa latente / Need for immunological determination of Quantiferon (Interferon-gamma Relase-Assay) for the diagnosis of latent tuberculous infection

Introducción: La tuberculosis es un importante problema de salud pública, primera causa de muerte en adultos contagiados de un solo agente infeccioso. Diferenciaremos enfermedad tuberculosa activa de Infección Tuberculosa Latente. El control biológico del examen inicial de salud establece si el trabajador es portador de ITL para diferenciarlo de un posible contagio posterior con motivo del trabajo. Objetivos: Objetivo general estimar la validez del Mantoux/Booster y Quantiferon como pruebas diagnósticas de la ITL. Objetivo específico definir los casos diagnosticados como ITL. Material y Métodos: Recogida de datos de las historias clínico-laborales del personal de nueva incorporación, del Área de Salud de Zamora, años 2018-2021, se importan a una base de datos, se realiza estudio descriptivo cualitativo/cuantitativo. Resultados: De los trabajadores estudiados son tuberculina positivos el 29’1%; siendo Quantiferón positivos el 10’3%. Diagnosticamos 159 casos de ITL. Conclusión: La técnica más precisa para diagnosticar la ITL es la determinación del Quantiferón. (AU)

Introduction: Tuberculosis is a major public health problem, first cause of death in adults infected with a single infectious agent. We will differentiate active tuberculosis disease from latent tuberculosis infection. The biological control of the initial health examination establishes whether the worker is a carrier of LTTI to differentiate him/her from a possible subsequent contagion at work. Objectives: General objective to estimate the validity of Mantoux/Booster and Quantiferon as diagnostic tests for LTTI. Specific objective: To define the cases diagnosed as ITL. Material and Methods: Collection of data from the clinical-work histories of newly hired personnel, from the Zamora Health Area, years 2018-2021, imported into a database, qualitative/quantitative descriptive study is performed. Results: 29.1% of the workers studied were tuberculin positive; 10.3% were Quantiferon positive. We diagnosed 159 cases of ITL. Conclusion: The most accurate technique to diagnose ITL is the determination of Quantiferon. (AU)

COVID-19 pandemic effects on health worker's mental health: Systematic review and meta-analysis.

BACKGROUND: Healthcare workers (HCWs) exposed to coronavirus 19 (COVID-19) are at high risk of developing mental health concerns across several domains. The aim of this study is to determine the updated, global frequency of these outcomes. METHODS: A multistep literature search was performed from database inception until March 1, 2021. PRISMA/MOOSE-compliant systematic review and PROSPERO protocol were used to identify studies reporting on depression, anxiety, acute stress, post-traumatic symptoms, insomnia, and burnout in HCWs exposed to COVID-19. A quantitative meta-analysis with random effects was conducted to analyze the proportion rate of the mental health disorders. Sensitivity analyses were performed to investigate the effect of the different continents and scales. Meta-regression analyses were conducted to examine the effect of gender, age, and work position. RESULTS: 239 articles were included (n = 271,319 HCWs, mean age = 36.08 ± 8.33 (66.99% female). 33% HCWs exposed to COVID-19 reported depressive symptoms (95% confidence intervals [CI] = 28-38%), 42% anxiety features (95% CI = 35-48), 40% acute stress (95% CI = 32-47), 32% post-traumatic symptoms (95% CI = 26-37%), 42% insomnia (95% CI = 36-48), 37% burnout (95% CI = 31-42). Sensitivity analyses did not show statistically significant differences. Meta-regressions found a statistically significant lower prevalence of post-traumatic symptoms in Asia. CONCLUSIONS: HCWs exposed to COVID-19 were found to have a significant prevalence of mental health concerns in all domains analyzed. The effects of COVID-19 on HCWs' mental health could be underestimated and the future consequences dismissed.

Inhibition of squalene synthase of rat liver by abietane diterpenes derivatives.

In the current study, chemical composition of cultivated Salvia canariensis L was determined. Carnosol was the main product isolated. We prepared more lipophilic derivatives from carnosol, and both isolated and semisynthetic abietane diterpenes were evaluated in vitro as inhibitors of squalene synthase. Among the compounds tested, carnosol was the most potent inhibitor (IC50 = 17.6 µM). These results highlight the great potential of this species for the production of new ingredients in nutritional supplements for the treatment of hyperlipidemia.

Acinetobacter Baumannii Multiresistente y su Relación con la Producción de Biopelículas

Resumen Introducción: Acinetobacter baumannii es la bacteria Gram negativa asociada a infecciones intrahospitalarias por su gran facilidad de supervivencia en condiciones adversas y el desarrollo de multirresistencia a diversos antimicrobianos. Durante años se han registrado brotes hospitalarios en diferentes países asociados a esta bacteria, lo que aumentó el interés de estudio de las biopelículas y los genes involucrados en su producción, debido a que se demostró una asociación a la resistencia antibiótica. Objetivos: Establecer relacion entre la multirresistencis a los diferentes antibioticos y la formacion de biopeliculas en aislamientos de Acinetobacter baumannii. Métodos: Se estudió cepas de Acinetobacter baumannii utilizando reacción en cadena de la polimerasa (PCR) en tiempo real para la detección de genes bap, csuE, ompA, oxa-51 de 191 muestras, de igual manera se realizó la cuantificación de la biopelícula formada siguiendo la técnica descrita por Badmasti y Azizi. Resultados: Se realizó este estudio sobre 191 cepas de Acinetobacter baumannii provenientes de dos centros hospitalarios para la identificación de genes asociados a las biopelículas y posterior cuantificación de acuerdo a la técnica descrita por Badmasti y Azizi. Demostrando una asociación entre las biopelículas y la resistencia bacteriana de Acinetobacter baumannii. Conclusiones: Los resultados demostraron una asociación positiva entre la cantidad de biopelícula formada y la resistencia antibiótica, bacterias formadoras fuertes de biopelículas presentan mayor resistencia a los carbapenems. En cuanto a los genes, el gen ompA demostró una asociación con la cantidad de biofilm producido, bap y csuE son genes involucrados en el primer paso de formación de biofilm, pero no se asocian con la cantidad formada por la bacteria.

Abstract Introduction: Acinetobacter baumannii is the Gram-negative bacterium associated with hospital infections due to its great ease of survival in adverse conditions and the development of multi-resistance to various antimicrobials. For years, hospital outbreaks have been registered in different countries associated with this bacterium, which increased the interest in studying biofilms and the genes involved in their production, since an association with antibiotic resistance was demonstrated. Objectives: To establish a relationship between multiresistance to different antibiotics and biofilm formation in Acinetobacter baumannii isolates. Methods: acinetobacter baumannii strains were studied using real-time polymerase chain reaction (PCR) for the detection of bap, csuE, ompA, oxa-51 genes from 191 samples, in addition to the quantification of the biofilm formed following the technique described by Badmasti and Azizi. Results: this study was carried out on 191 Acinetobacter baumannii strains from two hospital centers for the identification of genes associated with biofilms and subsequent quantification according to the technique described by Badmasti and Azizi. Demonstrating an association between biofilms and Acinetobacter baumannii bacterial resistance. Conclusions: the results demonstrated a positive association between the amount of biofilm formed and antibiotic resistance. Strong biofilm-forming bacteria show greater resistance to carbapenems. Regarding the genes, the ompA gene showed an association with the amount of biofilm produced, bap and csuE are genes involved in the first step of biofilm formation, but they are not associated with the amount formed by the bacteria

Determinación serológica en el seguimiento de la vacunación triple vírica, varicela y hepa-titis B, en estudiantes de enfermería que hacen prácticas en el Complejo Asistencial de Zamora / Serological determination in the follow-up of the triple virus vaccination, chickenpox and hepatitis b, in nursing students who practice at the Zamora healthcare complex

INTRODUCCIÓN Y OBJETIVOS: Garantizar la seguridad y salud de los estudiantes de enfermería que realizan prácticas en el hospital ofreciéndoles vacunación hasta alcanzar el nivel inmunológico de protección necesario. METODOLOGÍA: Revisión y recogida de datos de las historias clínico-laborales de 182 estudiantes de la Escuela de Enfermería de Sacyl en Zamora (2016-2019). RESULTADOS: Todos acreditan estar vacunados según calendario oficial. Tras primera serología, el 31,6% no presenta inmunidad frente a la triple vírica, el 2,15% frente a la varicela y el 86,9% frente a la vacuna de la hepatitis B. El 7,1% resultó no respondedor frente a la vacuna de la hepatitis B tras segunda pauta vacunal completa. CONCLUSIONES: La realización de la serología en el cribado prevacunación permite revacunar a aquellos que no presentan inmunización así como detectar aquellos casos no respondedores que tendrán un manejo adecuado si ocurre un accidente con exposición a una fuente de alto riesgo

INTRODUCTION AND OBJETIVES: Ensure the safety and health of nursing students who practice in the hospital by providing them with vaccinations up to the necessary immune protection level. METHODOLOGY: Review and data collection from the clinical- workplace histories of 182 students of the Sacyl School of Nursing in Zamora (2016-2019). RESULTS: All of them certify to be vaccinated according to official calendar. After the first serology, 31.6% did not have immunity against the triple virus, 2.15% against chickenpox and 86.9% against the hepatitis B vaccine. 7.1% were not responding to the hepatitis B vaccine after the second complete vaccination. CONCLUSION: The realization of serology in the screening allows to revaccinate those who don't present immunization, as well as detect those non-responders who will have adequate management if an accident with exposure to a high-risk source occurs

Neurogenic and neuroprotective donepezil-flavonoid hybrids with sigma-1 affinity and inhibition of key enzymes in Alzheimer's disease.

In this work we describe neurogenic and neuroprotective donepezil-flavonoid hybrids (DFHs), exhibiting nanomolar affinities for the sigma-1 receptor (σ1R) and inhibition of key enzymes in Alzheimer's disease (AD), such as acetylcholinesterase (AChE), 5-lipoxygenase (5-LOX), and monoamine oxidases (MAOs). In general, new compounds scavenge free radical species, are predicted to be brain-permeable, and protect neuronal cells against mitochondrial oxidative stress. N-(2-(1-Benzylpiperidin-4-yl)ethyl)-6,7-dimethoxy-4-oxo-4H-chromene-2-carboxamide (18) is highlighted due to its interesting biological profile in σ1R, AChE, 5-LOX, MAO-A and MAO-B. In phenotypic assays, it protects a neuronal cell line against mitochondrial oxidative stress and promotes maturation of neural stem cells into a neuronal phenotype, which could contribute to the reparation of neuronal tissues. Molecular modelling studies of 18 in AChE, 5-LOX and σ1R revealed the main interactions with these proteins, which will be further exploited in the optimization of new, more efficient DFHs.

Novel tacrine-grafted Ugi adducts as multipotent anti-Alzheimer drugs: a synthetic renewal in tacrine-ferulic acid hybrids.

Herein we describe the design, multicomponent synthesis, and biological, molecular modeling and ADMET studies, as well as in vitro PAMPA-blood-brain barrier (BBB) analysis of new tacrine-ferulic acid hybrids (TFAHs). We identified (E)-3-(hydroxy-3-methoxyphenyl)-N-{8[(7-methoxy-1,2,3,4-tetrahydroacridin-9-yl)amino]octyl}-N-[2-(naphthalen-2-ylamino)2-oxoethyl]acrylamide (TFAH 10 n) as a particularly interesting multipotent compound that shows moderate and completely selective inhibition of human butyrylcholinesterase (IC50 =68.2 nM), strong antioxidant activity (4.29 equiv trolox in an oxygen radical absorbance capacity (ORAC) assay), and good ß-amyloid (Aß) anti-aggregation properties (65.6 % at 1:1 ratio); moreover, it is able to permeate central nervous system (CNS) tissues, as determined by PAMPA-BBB assay. Notably, even when tested at very high concentrations, TFAH 10 n easily surpasses the other TFAHs in hepatotoxicity profiling (59.4 % cell viability at 1000 µM), affording good neuroprotection against toxic insults such as Aß1-40 , Aß1-42 , H2 O2 , and oligomycin A/rotenone on SH-SY5Y cells, at 1 µM. The results reported herein support the development of new multipotent TFAH derivatives as potential drugs for the treatment of Alzheimer's disease.

N-Methyl-N-((1-methyl-5-(3-(1-(2-methylbenzyl)piperidin-4-yl)propoxy)-1H-indol-2-yl)methyl)prop-2-yn-1-amine, a new cholinesterase and monoamine oxidase dual inhibitor.

On the basis of N-((5-(3-(1-benzylpiperidin-4-yl)propoxy)-1-methyl-1H-indol-2-yl)methyl)-N-methylprop-2-yn-1-amine (II, ASS234) and QSAR predictions, in this work we have designed, synthesized, and evaluated a number of new indole derivatives from which we have identified N-methyl-N-((1-methyl-5-(3-(1-(2-methylbenzyl)piperidin-4-yl)propoxy)-1H-indol-2-yl)methyl)prop-2-yn-1-amine (2, MBA236) as a new cholinesterase and monoamine oxidase dual inhibitor.

Semisynthesis and biological evaluation of abietane-type diterpenes. Revision of the structure of rosmaquinone.

The new aromatic diterpenes 7beta-O-benzylrosmanol (3), 7beta-O-benzyl-11,12-di-O-methylrosmanol (4), and 7alpha-thiophenylcarnosic acid (5) have been obtained by partial synthesis from carnosol (1), an abundant natural diterpene present in Salvia species. The structures of these compounds were established from their physical and spectroscopic data. The known diterpenes sagequinone methide A (6), 7beta-O-methylrosmanol (7), 7-O-methylrosmanol (8), and rosmaquinone B (9) were obtained from rosmanol (2). The spectroscopic data of these semisynthetic diterpenes were identical to data reported in the literature. In addition, the new semisynthetic isorosmaquinone (10) was obtained from isorosmanol (12). The proton resonances of rosmaquinone (11) are reassigned based on 2D NMR spectroscopy. These compounds, as well as eight known analogues, were evaluated for cytotoxic and antimicrobial activities.

Abietane diterpenoids from Salvia pachyphylla and S. clevelandii with cytotoxic activity against human cancer cell lines.

A phytochemical study has been carried out on the aerial parts of Salvia pachyphylla and S. clevelandii. From S. pachyphylla, the known diterpenes carnosol (2), rosmanol, 20-deoxocarnosol (3), carnosic acid, isorosmanol (4), 7-methoxyrosmanol, 5,6-didehydro-O-methylsugiol (5), 8beta-hydroxy-9(11),13-abietadien-12-one (6), 11,12-dioxoabieta-8,13-diene, and 11,12-dihydroxy-20-norabieta-5(10),8,11,13-tetraen-1-one were isolated, together with the new diterpene pachyphyllone (1). From S. clevelandii, the known diterpenes rosmadial (7), 16-hydroxycarnosol (8), abieta-8,11,13-triene, and taxodone were obtained, together with carnosol (2), rosmanol, and carnosic acid. The structure of the new compound (1) was identified on the basis of spectroscopic data analysis. Several of these compounds (1-8) were evaluated against a small panel of human cancer cell lines.

Quinone derivatives by chemical transformations of 16-hydroxycarnosol from Salvia species.

The known diterpenes 12,16-epoxycarnosol (2), isotanshinone II (6), and (+)-neocryptotanshinone (8) were obtained by partial synthesis from 16-hydroxycarnosol (1), a C-16 hydroxylated abietatriene diterpene isolated in relative abundance from the aerial part of Salvia mellifera GREENE. The physical and spectroscopic data of these semisynthetic diterpenes were identical to those given for the natural ones in the literature. These abietane diterpenes have very interesting biological activities and the semisynthetic approach described here represents an alternative to obtain them from other major diterpenes isolated from Salvia species. Additionally, seven new semisynthetic diterpene analogues, 11,14-dioxo-12,16-epoxy-8,12-abietadien-20,7beta-olide (3), 11,14-dioxo-12,16-epoxy-8,12,15(16)-abietatrien-20,7beta-olide (4), 15,16-didehydro-12,16-epoxycarnosol (5), 1-oxoisotanshinone II (7), 16-hydroxycolumbaridione (9), 12,16-diacetoxycolumbaridione (10), and 14-methoxy-12,16-epoxycarnosol (13), were obtained from 1. The structures of the new compounds were established based on their spectroscopic data.

Semisynthesis of rosmanol and its derivatives. Easy access to abietatriene diterpenes isolated from the genus Salvia with biological activities.

The known diterpenes rosmanol (3), rosmaquinone (4), 7-methoxyrosmanol (5), 7-ethoxyrosmanol (6), galdosol (7), and epirosmanol (8) have been obtained by partial synthesis from carnosol (2), an abundant natural product present in Salvia species. The physical and spectroscopic data of these semisynthetic diterpenes were identical to those of authentic natural samples and with data reported in the literature. These abietane diterpenes have very interesting biological activities and are present in the genus Salviain low quantities; thus, the semisynthetic approach described here represents an efficient alternative method to obtain these compounds. Additionally, the known diterpene 16-hydroxyrosmanol (10) and a new aromatic diterpene 11 were obtained from 16-hydroxycarnosol (9) by reaction with Ph3P/NBS in CH2Cl2. The structure of the new compound 11 was established from its spectroscopic data as 12,16-epoxycarnosol.