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1.
Med. intensiva (Madr., Ed. impr.) ; 47(10): 565-574, oct. 2023. tab, graf
Artigo em Inglês | IBECS | ID: ibc-226332

RESUMO

Objective: To test the presence of the obesity paradox in two cohorts of patients hospitalized for COVID-19. Design: Two multicenter prospective cohorts. Setting: Three fourth level institutions. Patients: Adults hospitalized in the general ward for confirmed COVID-19 in the three institutions and those admitted to one of the 9 critical care units of one of the institutions. Interventions: None. Main variables of interest: Categorized weight and its relationship with admission to the ICU in hospitalized patients and death in the ICU. Result: Of 402 hospitalized patients, 30.1% were obese. Of these, 36.1% were admitted to the ICU vs. 27.1% of non-obese patients. Of the 302 ICU patients, 46.4% were obese. Of these, mortality was 45.0% vs. 52.5% for non-obese. The requirement to transfer hospitalized patients to the ICU admission get a HR of 1.47 (95%CI 0.87–2.51, p = 0.154) in the multivariate analysis. In intensive care patients, an HR of 0.99 (95%CI: 0.92–1.07, p = 0.806) was obtained to the association of obesity with mortality. Conclusions: The present study does not demonstrate an association between obesity and risk of inpatient transfer to intensive care or death of intensive care patients due to COVID-19 therefore, the presence of an obesity paradox is not confirmed. (AU)


Objetivo: Comprobar la presencia la paradoja de la obesidad en dos cohortes de pacientes hospitalizados por COVID-19. Diseño: Dos cohortes prospectivas multicéntricas. Ámbito: Tres instituciones de cuarto nivel. Pacientes: Adultos hospitalizados en pabellón general por COVID-19 confirmado en las tres instituciones y aquellos internados en alguna de las 9 unidades de cuidado crítico de una de las instituciones. Intervenciones: Ninguna. Variables de interés principales: El peso categorizado y su relación con el ingreso a UCI en hospitalizados y de muerte en UCI. Resultado: Entre 402 hospitalizados 30.1% fueron obesos, de los que 36.1% ingresaron a UCI vs. 27.1% en los no obesos. De los 302 pacientes en UCI, el 46.4% fueron obesos, entre ellos la mortalidad fue de 45.0% vs. 52.5% en los no obesos. En hospitalizados el análisis multivariado obtuvo HR de 1.47 (IC95% 0.87–2.51, p = 0.154) para traslado a UCI. En UCI se obtuvo un OR de 0.99 (IC95%: 0.92–1.07, p = 0.806) para la muerte. Conclusiones: El presente estudio no demuestran una asociación entre la obesidad y el riesgo de traslados a cuidados intensivos en pacientes hospitalizados ni con la muerte en pacientes en cuidados intensivos por COVID-19 por lo que no se confirma la presencia de una paradoja de la obesidad. (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Pandemias , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/mortalidade , Obesidade , Estudos Prospectivos , Estudos de Coortes , Colômbia , Coronavírus Relacionado à Síndrome Respiratória Aguda Grave , Hospitalização
2.
J Org Chem ; 88(19): 14156-14164, 2023 10 06.
Artigo em Inglês | MEDLINE | ID: mdl-37728229

RESUMO

We present a computational study inspired by the story of dysiherbol A, a natural product whose putative structure was found incorrect through synthesis by a completely fortuitous event. While the carbon connectivity and chemical environment between both structures remain similar, the real dysiherbol A has a different molecular weight than that reported for the natural product. Had the synthesis groups not been favored by fortune, it could be speculated that a substantial amount of time and effort would have been required to solve the structural puzzle. Within the realm of computer-guided total synthesis of natural products, the question arose whether a synthesis group could have in silico reassigned the structure before embarking on the experimental adventure. To address this query, we evaluated some state-of-the-art computational procedures based on their computational demand and ease of implementation for nonexpert users with basic skills in computational chemistry (including HOSE, CASCADE, ANN-PRA, ML-J-DP4, DP4, and DP4+). While discussing the strengths and limitations of these methods, this case study provides a roadmap of what could be done before venturing into complex and time-demanding total synthesis projects.


Assuntos
Produtos Biológicos , Produtos Biológicos/química , Carbono
3.
Med Intensiva (Engl Ed) ; 47(10): 565-574, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37088658

RESUMO

OBJECTIVE: To test the presence of the obesity paradox in two cohorts of patients hospitalized for COVID-19. DESIGN: Two multicenter prospective cohorts. SETTING: Three fourth level institutions. PATIENTS: Adults hospitalized in the general ward for confirmed COVID-19 in the three institutions and those admitted to one of the 9 critical care units of one of the institutions. INTERVENTIONS: None. MAIN VARIABLES OF INTEREST: Categorized weight and its relationship with admission to the ICU in hospitalized patients and death in the ICU. RESULT: Of 402 hospitalized patients, 30.1% were obese. Of these, 36.1% were admitted to the ICU vs. 27.1% of non-obese patients. Of the 302 ICU patients, 46.4% were obese. Of these, mortality was 45.0% vs. 52.5% for non-obese. The requirement to transfer hospitalized patients to the ICU admission get a HR of 1.47 (95%CI 0.87-2.51, p = 0.154) in the multivariate analysis. In intensive care patients, an HR of 0.99 (95%CI: 0.92-1.07, p = 0.806) was obtained to the association of obesity with mortality. CONCLUSIONS: The present study does not demonstrate an association between obesity and risk of inpatient transfer to intensive care or death of intensive care patients due to COVID-19 therefore, the presence of an obesity paradox is not confirmed.


Assuntos
COVID-19 , Adulto , Humanos , COVID-19/epidemiologia , COVID-19/complicações , SARS-CoV-2 , Estudos Prospectivos , Paradoxo da Obesidade , Obesidade/complicações , Obesidade/epidemiologia
4.
Org Biomol Chem ; 21(14): 2935-2940, 2023 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-36942946

RESUMO

Oximes and related derivatives featuring a CN double bond are important in many areas of chemistry. Different methods for the determination of the E/Z configuration have been developed, each with its own scope and limitations. While some cannot be used when only one isomer is available, others require special NMR experiments. Here, three popular computational methodologies (DP4, DP4+, and ML-J-DP4) have been thoroughly studied using a challenging test set. Although DP4+ provides the best confidence, its computational cost might be high. On the other hand, ML-J-DP4 shows excellent performance in most cases in a fraction of CPU time. A detailed analysis of the structural factors affecting the NMR prediction and sense of the assignment is also provided.

5.
Medicina (Kaunas) ; 59(2)2023 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-36837598

RESUMO

Background and Objectives: Gentamicin (GM) is a nephrotoxic aminoglycoside. Neutral electrolyzed saline (SES) is a compound with anti-inflammatory, antioxidant, and immunomodulatory properties. The objective of the present study was to evaluate whether kidney damage by GM can be prevented and/or reversed through the administration of SES. Materials and Methods: The study was carried out as a prospective, single-blind, five-arm, parallel-group, randomized, preclinical trial. The nephrotoxicity model was established in male BALB/c mice by administering GM at a dose of 100 mg/kg/day intraperitoneally for 30 days, concomitantly administering (+) SES or placebo (physiologic saline solution), and then administering SES for another 30 days after the initial 30 days of GM plus SES or placebo. At the end of the test, the mice were euthanized, and renal tissues were evaluated histopathologically. Results: The GM + placebo group showed significant tubular injury, interstitial fibrosis, and increased interstitial infiltrate of inflammatory cells compared with the group without GM. Tubular injury and interstitial fibrosis were lower in the groups that received concomitant GM + SES compared with the GM + placebo group. SES administration for 30 days after the GM administration periods (GM + placebo and GM + SES for 30 days) did not reduce nephrotoxicity. Conclusions: Intraperitoneal administration of SES prevents gentamicin-induced histologic nephrotoxicity when administered concomitantly, but it cannot reverse the damage when administered later.


Assuntos
Gentamicinas , Rim , Animais , Masculino , Camundongos , Ratos , Modelos Animais de Doenças , Fibrose , Gentamicinas/metabolismo , Gentamicinas/farmacologia , Rim/patologia , Estresse Oxidativo , Estudos Prospectivos , Ratos Wistar , Solução Salina/farmacologia , Método Simples-Cego
6.
Int Soc Work ; 66(1): 168-180, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36650892

RESUMO

COVID-19 arrived in Chile amid social protests that questioned the State's ability to protect children's rights. Nevertheless, child policy workers continued working despite the drastic changes to their daily work generated by both the pandemic and conflicts within the child welfare system. In this article, we aim to understand how these workers have experienced and overcome these challenges. We show that they have continued doing interventions with children at the expense of their economic resources and well-being. Our findings highlight the need for the government to take immediate action, offering guidelines to improve child policy workers' labor conditions.

7.
Acta méd. colomb ; 47(3)July-Sept. 2022.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1533438

RESUMO

Background: identifying patients at risk for negative outcomes is key for performing a timely triage and adapting the care intensity for patients with COVID-19. Early warning scores are rules that alert to the risk of adverse outcomes during hospitalization. We sought to validate the modified NEWS, NEWS-2 and COVID-19 Severity Index (CSI). Methods: a prospective observational multicenter study of patients hospitalized for CO VID-19 at three quaternary care hospitals in Bogotá, Colombia, between April and November 2020. The operating characteristics and areas under the ROC curve were calculated. Results: 711 patients were included, in whom the AUC for death was 0.68, 0.58 and 0.68, and for ICU admission was 0.61, 0.63 and 0.66 for mNEWS, NEWS-2 and CSI, respectively. The CSI had the greatest sensitivity for ICU admission or death (87.6 and 90.0%) and NEWS-2 had the greatest specificity (76.8 and 75.5%). Conclusions: the three early warning scores had a low to moderate performance in pre dicting ICU admission or death in patients hospitalized for COVID-19. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2225).


Antecedentes: la identificación de los pacientes con riesgo de desenlaces negativos es clave para realizar un triage oportuno y adecuar la intensidad de los cuidados en los pacientes con COVID-19. Las puntuaciones de alerta temprana son reglas para advertir el riesgo de desenlaces adversos durante la hospitalización. Buscamos validar el NEWS modificado, NEWS-2 y COVID-19 Severity Index. Metodología: estudio observacional, prospectivo, multicéntrico con pacientes hospitalizados por COVID-19 en tres hospitales de cuarto nivel en Bogotá (Colombia), entre abril y noviembre de 2020. Se calcularon las características operativas y áreas bajo la curva ROC. Resultados: se contó con 711 pacientes entre los cuales el AUC para muerte fue 0.68, 0.58 y 0.68, y para ingreso a UCI de 0.61, 0.63 y 0.66 para NEWSm, NEWS-2 y CSI respectivamente. El CSI alcanzó la mayor sensibilidad para ingreso a UCI o muerte (87.6 y 90.0%) y la mayor especificidad fue el NEWS-2 (76.8 y 75.5%). Conclusiones: las tres puntuaciones de alerta temprana mostraron un desempeño bajo a moderado para la predicción del ingreso a UCI o muerte en pacientes hospitalizados por COVID-19. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2225).

8.
Rev. latinoam. cienc. soc. niñez juv ; 20(1): 281-302, ene.-abr. 2022. tab
Artigo em Espanhol | LILACS | ID: biblio-1365875

RESUMO

Resumen (analítico) Chile es un caso emblemático en la instalación de una política de protección a la infancia con orientación neoliberal. Actualmente, esta política es ejecutada casi completamente por organizaciones privadas, financiadas conforme al logro de indicadores de desempeño estandarizados. Algunas investigaciones plantean que estos indica-dores gobiernan la racionalidad de los trabajadores y trabajadoras; empero, estudios internacionales señalan que este tipo de gobernanza no solo es racional, sino también afectiva. A partir de un análisis textuala-fectivo de 14 entrevistas individuales y dos talleres grupales realizados a cinco trabajadoras y un trabajador de distintos organismos colaboradores del Servicio Nacional de Menores, se reporta que este modelo de gestión consume y maquiniza los cuerpos de estas y estos profesionales. No obstante, el afecto es el que hace posible la resistencia.


Abstract (analytical) Chile is an emblematic case in the implementation of a neoliberal child welfare policy. This policy is now almost entirely undertaken by private organizations, financed based on their achievement of standardized performance indicators. Scientific literature suggests that these indicators govern workers' rationality. However, international studies indicate that the effect of indicators is not just rational but also affective. From a textual-affective analysis of 14 interviews and 2 workshops conducted with 5 female workers and 1 male worker from different partner organizations within the Chilean National Service for Minors, participants reported that this management model consumes and mechanizes the work carried out by these professionals. However, it is affectivity that makes resistance possible.


Resumo (analítico) O Chile é um caso emblemático na instalação de uma política neoliberal de proteção à criança. Esta, é hoje quase inteiramente executado por organizações privadas, financiadas de acordo com a obtenção de indicadores de desempenho padronizados. Pesquisas sugerem que estes indicadores governam a racionalidade dos trabalhadores; enquanto estudos internacionais indicam que este governo não é apenas racional, mas também afetivo. A partir de uma análise textual-afetiva de 14 entrevistas e duas oficinas realizadas a cinco trabalhadoras e um trabalhador de diferentes Organizações Colaboradoras do Serviço Nacional de Menores, é relatado que este modelo de gestão consome e mecaniza os órgãos destes profissionais. No entanto, é o afeto que torna possível a resistência.


Assuntos
Política , Trabalho , Proteção da Criança , Afeto , Menores de Idade
9.
ACS Org Inorg Au ; 2(1): 44-52, 2022 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-36855406

RESUMO

The influence of the replacement of CH groups by boron atoms on the reactivity of planar polycyclic aromatic hydrocarbons has been explored by means of computational tools. To this end, [4 + 2]-cycloaddition reactions involving anthracene and neutral boranthrene with different dienophiles such as ethylene, acetylene, and CO2 have been compared. In addition, the influence of additional fused aromatic rings (pentacene or borapentacene) on the reactivity of these species has been also explored. It was found that the B-doped systems are systematically much more reactive than their all-carbon counterparts from both kinetic and thermodynamic points of view. The observed trends in reactivity are quantitatively analyzed in detail using state-of-the-art methods, namely, the activation strain model of reactivity and the energy decomposition analysis method. Our calculations reveal the importance of molecular orbital interactions as the key factor responsible for the enhanced reactivity of the B-doped systems.

10.
Dalton Trans ; 50(48): 18036-18043, 2021 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-34825906

RESUMO

The physical factors behind the experimentally observed high activity of gold(I)-catalysts having an α-cationic phosphole as a ligand have been computationally explored. To this end, the gold(I)-catalysed hydroarylation reactions of phenylacetylene and mesitylene involving both neutral and cationic phosphole as well as phosphine ligands have been quantitatively analyzed in detail with the help of the activation strain model of reactivity in combination with the energy decomposition analysis method. It is found that the cationic phosphole ligands induce a dramatic change in both the geometry and the electronic structure of the initially formed π-complex which significantly enhances its electrophilicity. This results in an enhancement of the key π(mesitylene) → π*(LAu-acetylene complex) molecular orbital interaction which is the main factor responsible for the activating effect of these cationic ligands.

11.
R Soc Open Sci ; 8(7): 210142, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34350014

RESUMO

Methoximes are important as a class of intermediates and products, among fine chemicals and specialties. The development of a new, facile and efficient method for their synthesis is reported. The methoximes were properly accessed from the corresponding aromatic aldehydes and ketones in good to excellent yields, under mild conditions, employing the inexpensive and environmentally friendly MnCl2.4H2O as a catalyst (at low loading and without the addition of ligand), in EtOH at 50°C. The scope of the process was systematically assessed.

12.
Am J Transl Res ; 13(5): 4535-4543, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34150033

RESUMO

Inflammation is an essential component of prostate cancer (PCa), and mefenamic acid has been reported to decrease its biochemical progression. The current standard therapy for PCa is androgen deprivation therapy (ADT), which has side effects such as cognitive dysfunction, risk of Alzheimer's disease, and dementia. Published results of in vitro tests and animal models studies have shown that mefenamic acid could be used as a neuroprotector. Objective: Examine the therapeutic potential of mefenamic acid in cognitive impairment used in a controlled clinical trial. Clinical trial phase II was conducted on patients undergoing ADT for PCa. Two groups of 14 patients were included. One was treated with a placebo, while the other received mefenamic acid 500 mg PO every 12hrs for six months. The outcome was evaluated through the Mini-Mental State Examination (MMSE) score at six months. At the beginning of the study, both groups had similar MMSE scores (mefenamic acid vs. placebo: 26.0±2.5 vs. 27.0±2.6, P=0.282). The mefenamic acid group improved its MMSE score after six months compared with the placebo group (27.7±1.8 vs. 25.5±4.2, P=0.037). Treatment with mefenamic acid significantly increases the probability of maintained or raised cognitive function compared to placebo (92% vs. 42.9%, RR=2.2, 95% CI: 1.16-4.03, NNT=2.0, 95% CI: 1.26-4.81, P=0.014). Furthermore, 42.9% of the placebo group patients had relevant cognitive decline (a 2-point decrease in the MMSE score), while in patients treated with mefenamic acid, cognitive impairment was not present. This study is the first conducted on humans that suggests that mefenamic acid protects against cognitive decline.

13.
RSC Adv ; 11(32): 19587-19597, 2021 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-35479228

RESUMO

A straightforward and convenient approach for the first total syntheses of chromanone A and a related 7-OMe substituted natural product is reported. These unique C-3 substituted 2-hydroxymethyl chromones were recently isolated as fungal metabolites. Chromanone A was synthesized in 25.3% overall yield from the readily available pyrocatechol, whereas the second natural product was prepared in 39.7% global yield. A small library of chromones, including both natural products and some of their synthetic heterocyclic precursors, was evaluated against Candida albicans ATCC 10231, a biofilm forming agent. It was found that 8-methoxy-3-methyl-4-oxo-4H-chromene-2-carbaldehyde, a partially oxidized form of chromanone A, exhibited a minimum inhibitory concentration of 7.8 µg mL-1 and significantly inhibited the yeast's virulence factors, including the adherence to buccal epithelial cells and the secretion of phospholipases, as well as the formation of germ tubes and the generation of the hyphal pseudomycelium. In addition, despite the heterocycle exhibiting non-significant inhibition of the formation of the Candida biofilm, it completely inhibited the growth of C. albicans in preformed biofilms at 62.5 µg mL-1.

14.
Food Chem ; 321: 126701, 2020 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-32283502

RESUMO

The antifungal activity of a library of twenty-four aromatic methoximes was examined against five representative postharvest phytopathogenic fungi. The panel included Penicillium digitatum, Penicillium italicum, Rhizopus stolonifer, Botrytis cinerea and Monilinia fructicola, all of which cause relevant economic losses worldwide as a result of affecting harvested fruits. The minimum inhibitory concentrations and minimum fungicidal concentrations of each compound were defined and the main structure-activity relationships were determined. Although other congeners were more potent, drug likeliness considerations pointed to the methoxime derived from 2,4-dihydroxypropiophenone as the compound with the most suitable profile. The morphology of the colonies of the fungal strains treated with the methoxime was examined microscopically and the compound was also tested in freshly harvested peaches and oranges, exhibiting promising control profiles in both fruits, similar to those of the commercial agents Imazalil and Carbendazim.


Assuntos
Antifúngicos/química , Antifúngicos/farmacologia , Frutas/microbiologia , Oximas/química , Ascomicetos/efeitos dos fármacos , Botrytis/efeitos dos fármacos , Citrus sinensis/efeitos dos fármacos , Citrus sinensis/microbiologia , Frutas/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Oximas/farmacologia , Penicillium/efeitos dos fármacos , Prunus persica/efeitos dos fármacos , Prunus persica/microbiologia , Rhizopus/efeitos dos fármacos , Relação Estrutura-Atividade
15.
Transplant Proc ; 52(4): 1206-1208, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32222387

RESUMO

Tuberculosis (TB) is an opportunistic infection 20 to 74 times more frequent in immunocompromised patients compared to the general population. The prevalence with renal transplant had a 0.5% to 15% incidence. The infection could be pulmonary or extrapulmonary (EPTB). The EPTB accounts for almost 20% of TB cases in immunocompetent people and 50% in positive human immunodeficiency virus cases. In this case report, we present a patient who attended the emergency room because of chronic diarrhea, abdominal pain, loss of weight, nocturne diaphoresis, and intermittent fever. A computed tomography scan showed retroperitoneal ganglionic conglomeration. He got into an exploratory laparotomy for histopathology specimens and paraganglionic fluid culture to a Gene Xpert MTB-RIF Assay G4, positive for rifampicin resistance tuberculosis. After an individualized treatment, trying to protect the graft's remaining function, the patient returned with acute abdominal pain and pancreatic enzymes elevation; the antibiotic management had to be suspended until the return of renal function.


Assuntos
Hospedeiro Imunocomprometido , Transplante de Rim , Tuberculose Resistente a Múltiplos Medicamentos/imunologia , Dor Abdominal/etiologia , Adulto , Antibióticos Antituberculose/efeitos adversos , Humanos , Masculino , Mycobacterium tuberculosis , Transplantes/efeitos dos fármacos , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico
16.
RSC Adv ; 10(55): 33344-33377, 2020 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-35515056

RESUMO

The isolation, biological activity and synthesis of natural furo[3,2-c]coumarins are presented, covering mainly the developments in the last 35 years. The most relevant approaches toward the synthesis of 2-substituted, 3-substituted and 2,3-disubstituted heterocycles are also discussed, with emphasis on the efficiency of the processes and their mechanisms.

17.
Rev. cienc. biomed. ; 8(2): 94-104, 2019.
Artigo em Espanhol | MOSAICO - Saúde integrativa | ID: biblio-1283159

RESUMO

Introducción: el consumo del té verde ha aumentado recientemente en países occidentales, esto debido a sus beneficios sistémicos y localizados en cavidad bucal. Sus principales componentes activos como catequinas y polifenoles tienen efectos antioxidantes, anticarcinogénicos, antibióticos y antiimflamatorios. Su uso coadyuvante en tratamientos odontológicos surge ante la necesidad de evitar efectos adversos de sustancias comúnmente usadas y de mejorar los resultados de estos. Objetivo: describir los efectos benéficos del té verde en la cavidad bucal y su forma de uso en la odontología. Metodología: revisión de la literatura, los documentos fueron identificados mediante la búsqueda en bases de datos de alto impacto, se incluyeron investigaciones originales, casos clínicos, revisiones literarias y libros. No se aplicaron restricciones en el idioma ni en el tiempo de publicación. Resultados: se resalta la acción antibiótica contra bacterias periodontopatógenas y cariogénicas del té verde, su efecto antiinflamatorio y cicatrizante en cirugía oral y maxilofacial, actúa además como quimiopreventivo, es eficaz contra diversas patologías orales, facilita también la adhesión de restauraciones y de aparatología de ortodoncia, entre otros beneficios. Conclusiones: de acuerdo con la literatura encontrada el té verde puede ser un coadyuvante en tratamientos odontológicos, llevándolos a alcanzar mejores resultados. Sin embargo, se sugieren aumentar en número y calidad las investigaciones en este campo


Introduction: the consumption of green tea has recently increased in western countries, due to its systemic and localized benefits in the oral cavity. Its main active components such as catechins and polyphenols have antioxidant, anticarcinogenic, antibiotic and anti-inflammatory effects. Its use as an adjuvant to dental treatments arises from the need to avoid adverse effects of commonly used substances and to improve their results. Objective: to describe the beneficial effects of green tea in the oral cavity and its use in dentistry. Methodology: literature review, documents were identified by searching high impact databases, original research, clinical cases, literary reviews and books were included. There were no restrictions on language or time of publication. Results: the antibiotic action against periodontopathogenic and cariogenic bacteria of green tea is highlighted, it's anti-inflammatory and healing effect in oral and maxillofacial surgery, also acts as a chemopreventive, it is effective against various oral pathologies, and it also facilitates the adhesion of restorations and orthodontic appliances, among other benefits. Conclusions: due to the literature found, green tea can be an adjunct in dental treatments, achieving better results. However, it is suggested to increase the number and quality of research in this field.


Assuntos
Chá , Odontologia , Saúde Bucal , Colômbia , Medicina Tradicional , Anti-Inflamatórios , Antibacterianos
18.
R Soc Open Sci ; 5(5): 180279, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29892459

RESUMO

The use of CeCl3·7H2O as an efficient and eco-friendly promoter for the convenient synthesis of methoximes derived from aromatic aldehydes and ketones, is reported. The transformations entail the use of equimolar amounts of MeONH2·HCl and NaOAc in EtOH at 50°C, and no special precautions are needed with regard to the presence of oxygen. The scope and limitations of the transformation were studied and a reaction mechanism was proposed.

19.
Rev. cuba. med. mil ; 45(1): 53-62, ene.-mar. 2016.
Artigo em Espanhol | LILACS | ID: biblio-844972

RESUMO

Introducción: las enfermedades renales constituyen una causa frecuente de consulta médica, de ingreso hospitalario y de mortalidad. Objetivo: analizar algunas variables demográficas, clínicas y anatomopatológicas en fallecidos por estas enfermedades durante 40 años en un servicio de Nefrología. Métodos: estudio retrospectivo y observacional de variables demográficas, clínicas y anatomopatológicas en 272 fallecidos del servicio de nefrología del hospital Dr. Luis Díaz Soto, a los que se les practicó autopsia, ocurridas de 1974 al 2013. Resultados: predominaron los pacientes masculinos, de piel blanca y con edades de 35 a 64 años. La edad promedio se ha ido incrementando. Los principales diagnósticos clínicos de causa directa de muerte fueron bronconeumonía, infarto agudo de miocardio y shock. Como causa básica se plantearon la insuficiencia renal crónica, la hipertensión arterial y la diabetes mellitus. En los estudios anatomopatológicos fueron señaladas como más frecuentes causas directas de la muerte la bronconeumonía, el edema pulmonar, el shock y el infarto agudo de miocardio; mientras que en los principales diagnósticos de causa básica de muerte fueron registrados el riñón terminal, la cardiopatía hipertensiva, la diabetes mellitus y la aterosclerosis. Conclusiones: los indicadores de mortalidad, necropsia y correspondencia clínico patológica fueron adecuados. Se apreció un incremento, progresivo en el tiempo, de la edad de los pacientes fallecidos estudiados. La bronconeumonía y las cardiopatías fueron las principales causas de muerte. Los signos de aterosclerosis estuvieron presentes en la mayoría de los estudios realizados(AU)


Introduction: Renal diseases are a frequent cause of medical consultation, hospitalization and mortality. Objective: Analyze some demographic, clinical and anatomical and pathological variables in the deaths of renal diseases during 40 years in a Nephrology service. Methods: A retrospective and observational study was conducted of demographic, clinical and anatomical and pathological variables in 272 deaths of the nephrology service at Dr. Luis Díaz Soto hospital, who were autopsied, from 1974 to 2013. Results: There were predominantly male patients, white skin and aged 35 to 64 years. The average age has been increasing. The main clinical diagnoses of direct cause of death were bronchopneumonia, acute myocardial infarction and shock. As a basic cause, chronic renal failure, arterial hypertension and diabetes mellitus were considered. In anatomical and pathological studies, bronchopneumonia, pulmonary edema, shock and acute myocardial infarction were identified as more frequent causes of death; while in the main diagnoses of the basic cause of death, the terminal kidney, hypertensive heart disease, diabetes mellitus, and atherosclerosis were documented. Conclusions: Mortality, necropsy, and clinical pathological correspondence indicators were adequate. There was a progressive increase in the age of the deceased patients studied. Bronchopneumonia and heart disease were the main causes of death. Signs of atherosclerosis were present in most of the studies(AU)


Assuntos
Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Autopsia/métodos , Broncopneumonia/mortalidade , Insuficiência Renal Crônica/mortalidade , Estudos Retrospectivos , Doença das Coronárias/patologia , Estudo Observacional
20.
Rev. cuba. med. mil ; 45(1)ene.-mar. 2016.
Artigo em Espanhol | CUMED | ID: cum-68508

RESUMO

Introducción: las enfermedades renales constituyen una causa frecuente de consulta médica, de ingreso hospitalario y de mortalidad.Objetivo: analizar algunas variables demográficas, clínicas y anatomopatológicas en fallecidos por estas enfermedades durante 40 años en un servicio de Nefrología.Métodos: estudio retrospectivo y observacional de variables demográficas, clínicas y anatomopatológicas en 272 fallecidos del servicio de nefrología del hospital "Dr. Luis Díaz Soto", a los que se les practicó autopsia, ocurridas de 1974 al 2013.Resultados: predominaron los pacientes masculinos, de piel blanca y con edades de 35 a 64 años. La edad promedio se ha ido incrementando. Los principales diagnósticos clínicos de causa directa de muerte fueron bronconeumonía, infarto agudo de miocardio y shock.Como causa básica se plantearon la insuficiencia renal crónica, la hipertensión arterial y la diabetes mellitus. En los estudios anatomopatológicos fueron señaladas como más frecuentes causas directas de la muerte la bronconeumonía, el edema pulmonar, el shock y el infarto agudo de miocardio; mientras que en los principales diagnósticos de causa básica de muerte fueron registrados el riñón terminal, la cardiopatía hipertensiva, la diabetes mellitus y la aterosclerosis.Conclusiones: los indicadores de mortalidad, necropsia y correspondencia clínico patológica fueron adecuados. Se apreció un incremento, progresivo en el tiempo, de la edad de los pacientes fallecidos estudiados. La bronconeumonía y las cardiopatías fueron las principales causas de muerte. Los signos de aterosclerosis estuvieron presentes en la mayoría de los estudios realizados(AU)


Introduction: Renal diseases are a frequent cause of medical consultation, hospitalization and mortality.Objective: Analyze some demographic, clinical and anatomical and pathological variables in the deaths of renal diseases during 40 years in a Nephrology service.Methods: A retrospective and observational study was conducted of demographic, clinical and anatomical and pathological variables in 272 deaths of the nephrology service at "Dr. Luis Díaz Soto" hospital, who were autopsied, from 1974 to 2013.Results: There were predominantly male patients, white skin and aged 35 to 64 years. The average age has been increasing. The main clinical diagnoses of direct cause of death were bronchopneumonia, acute myocardial infarction and shock. As a basic cause, chronic renal failure, arterial hypertension and diabetes mellitus were considered. In anatomical and pathological studies, bronchopneumonia, pulmonary edema, shock and acute myocardial infarction were identified as more frequent causes of death; while in the main diagnoses of the basic cause of death, the terminal kidney, hypertensive heart disease, diabetes mellitus, and atherosclerosis were documented.Conclusions: Mortality, necropsy, and clinical pathological correspondence indicators were adequate. There was a progressive increase in the age of the deceased patients studied. Bronchopneumonia and heart disease were the main causes of death. Signs of atherosclerosis were present in most of the studies(AU)


Assuntos
Humanos , Mortalidade , Nefrologia , Insuficiência Renal Crônica/fisiopatologia , Autopsia
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