Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 11 de 11
Filtrar
Más filtros











Base de datos
Intervalo de año de publicación
1.
Reumatismo ; 75(2)2023 Jul 17.
Artículo en Inglés | MEDLINE | ID: mdl-37462130

RESUMEN

Rheumatic disease patients are at greater risk of infection due to their disease, comorbidities, and immunosuppressive therapy. COVID-19 outcomes in this patient setting appeared to be similar to those of the general population. However, data on this topic were mainly related to small studies on a limited number of patients. Consequently, to date, this field remains poorly explored, particularly in the pre-vaccine era. This monocentric study aimed to describe the intrahospital mortality in rheumatic patients with SARS-CoV-2 consecutively hospitalized from 21 February to 31 December 2020, before anti-SARS-CoV-2 vaccine administration spread, compared with non-rheumatic patients. Of 2491 included patients, 65 [3%, median (interquartile range) age 75 (64.76-82.239 years, 65% women] were suffering from rheumatic diseases. A total of 20 deaths were reported [case fatality rate 31%, 95% confidence interval (CI): 19-42] compared with 433 deaths (19%, 95% CI: 17-20) in patients without rheumatic diseases (p=0.024). However, the rheumatic disease was not associated with a significant increase in univariate mortality hazards (hazard ratio 1.374, 95% CI: 0.876-2.154), and after adjustment (hazard ratio 1.199, 95% CI: 0.759-1.894) by age, sex and Charlson comorbidity index. The incidence of intensive care unit admission, death, and discharge in the case-control study was comparable between rheumatic and non-rheumatic patients. The presence of rheumatic diseases in SARS-CoV-2-hospitalized patients did not represent an independent risk factor for severe disease or mortality.


Asunto(s)
COVID-19 , Enfermedades Reumáticas , Anciano , Femenino , Humanos , Masculino , Estudios de Casos y Controles , Comorbilidad , COVID-19/epidemiología , Enfermedades Reumáticas/tratamiento farmacológico , Enfermedades Reumáticas/epidemiología , SARS-CoV-2 , Anciano de 80 o más Años
2.
Eur Rev Med Pharmacol Sci ; 25(23): 7218-7222, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34919220

RESUMEN

OBJECTIVE: Anti-COVID-19 vaccines were mainly associated with non-serious adverse events (AEs), whose prevalence was reported to be up to 70% in healthcare workers (HCWs). This may lead to sick leave requests, but this impact has never been quantified. This study aimed to investigate the absence from work among HCWs following anti-COVID-19 vaccination. Its association with age and previous COVID-19 infection was also assessed. PATIENTS AND METHODS: This is a retrospective observational cross-sectional study on administrative data about sick leave requests after anti-COVID-19 vaccination. All the HCWs employed at the Niguarda Hospital (Milan, Italy) who received the vaccine from December 27, 2020 to February 28, 2021 were included. RESULTS: In total, 4,088 HCWs received the first dose of the vaccine and 4,043 completed the vaccination cycle. After the first injection, 1.6% of HCWs requested sick leave, while after the second injection, the number of requests significantly increased (+6.1%, p<0.001). A significant increase in sick leave was detected for those who have had SARS-CoV-2 infection after the first injection (+2.3%, p<0.001). After the second dose, a significant increase in sick leave was observed in the 20-30-year-old group compared to >30 years (+3.6%, p=0.017), if HCWs without a history of SARS-CoV-2 infection were considered. CONCLUSIONS: The requests for sick leave among HCWs following the anti-COVID-19 vaccine were limited and higher after the second injection. This may help the management of the human resources when the large-scale administration of the anti-COVID-19 vaccines will involve other categories of workers.


Asunto(s)
Vacuna BNT162/administración & dosificación , COVID-19/prevención & control , Personal de Salud/estadística & datos numéricos , Ausencia por Enfermedad/estadística & datos numéricos , Adulto , Factores de Edad , Vacuna BNT162/efectos adversos , Estudios Transversales , Femenino , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Adulto Joven
3.
Eur Rev Med Pharmacol Sci ; 25(24): 7985-7996, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34982462

RESUMEN

OBJECTIVE: This study aimed to improve the post-marketing surveillance on mRNA anti-SARS-CoV-2 vaccines, characterizing the adverse events (AEs) after the first dose of mRNA BNT162b vaccine. The associations between the AEs and individuals' characteristics were explored. PATIENTS AND METHODS: All adult healthcare workers at Niguarda Hospital (Milan, Italy) who were referred for the first dose of vaccine were offered to participate in a cross-sectional survey during the second-dose administration, between 18 January and 7 February 2021. All participants completed a questionnaire about age, gender, weight, height, medical history, concurrent therapies, employment status, previous diagnosis/testing for SARS-CoV-2 infection, and a list of 24 AEs (solicited AEs). The development of at least one solicited AEs was the main outcome. AEs were stratified by the presence of injection-site symptoms, systemic symptoms or both, and the differences between strata were assessed as a secondary outcome. Biometric data and reports of a previous diagnosis of SARS-CoV-2 infection were also explored, as predictors of the main outcome. RESULTS: 7,014 healthcare workers were included. An incidence of 3 per 10.000 persons for serious AEs following the first administration of the mRNA BNT162b vaccine was found. An association between the development of non-serious AEs with young age, female gender, low body mass index, and previous history of SARS-CoV-2 was described. CONCLUSIONS: This real-life study supported data on the safety profile of the BNT162b2 mRNA vaccine. Our findings on the associations between the development of non-serious AEs with some individual characteristics may help physicians and patients make educated and informed medical decisions towards anti-COVID-19 vaccination.


Asunto(s)
Vacuna BNT162/efectos adversos , COVID-19/prevención & control , Vacunación/efectos adversos , Adulto , Factores de Edad , Vacuna BNT162/administración & dosificación , COVID-19/epidemiología , COVID-19/inmunología , COVID-19/virología , Estudios Transversales , Femenino , Personal de Salud/estadística & datos numéricos , Humanos , Masculino , Anamnesis/estadística & datos numéricos , Persona de Mediana Edad , Vigilancia de Productos Comercializados/estadística & datos numéricos , Factores de Riesgo , SARS-CoV-2/inmunología , Factores Sexuales , Vacunación/estadística & datos numéricos
4.
Phys Rev Lett ; 125(26): 265001, 2020 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-33449734

RESUMEN

Photon bursts with a wavelength smaller than the plasma interparticle distance can drive plasma wakes via Compton scattering. We investigate this fundamental process analytically and numerically for different photon frequencies, photon flux, and plasma magnetization. Our results show that Langmuir and extraordinary modes are driven efficiently when the photon energy density lies above a certain threshold. The interaction of photon bursts with magnetized plasmas is of distinguished interest as the generated extraordinary modes can convert into pure electromagnetic waves at the plasma-vacuum boundary. This could possibly be a mechanism for the generation of radio waves in astrophysical scenarios in the presence of intense sources of high energy photons.

5.
Phys Rev Lett ; 122(19): 190404, 2019 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-31144933

RESUMEN

We demonstrate the experimental feasibility of probing the fully nonperturbative regime of quantum electrodynamics with a 100 GeV-class particle collider. By using tightly compressed and focused electron beams, beamstrahlung radiation losses can be mitigated, allowing the particles to experience extreme electromagnetic fields. Three-dimensional particle-in-cell simulations confirm the viability of this approach. The experimental forefront envisaged has the potential to establish a novel research field and to stimulate the development of a new theoretical methodology for this yet unexplored regime of strong-field quantum electrodynamics.

6.
J Mass Spectrom ; 51(9): 821-7, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27460774

RESUMEN

The Boswellia gum resin extracts have been used in traditional medicines because of their remarkable anti-inflammatory properties. Nowadays, these extracts are on the market as food supplements. ß-Boswellic acid (ßBA) is one of the main pentacyclic triterpene components, among the family of BAs, of the Boswellia gum resins. BAs have been broadly studied and are well known for their wide anti-inflammatory and potential anticancer properties. In this paper, a mass spectrometry-based chemoproteomic approach has been applied to characterize the whole ßBA interacting profile. Among the large numbers of proteins fished out, proteasome, 14-3-3 and some ribosomal proteins were considered the most interesting targets strictly connected to the modulation of the cancer progression. In particular, because of their recent assessment as innovative chemotherapeutic targets, the ribosomal proteins were considered the most attractive ßBA partners, and the biological role of their interaction with the natural compound has been evaluated. Copyright © 2016 John Wiley & Sons, Ltd.


Asunto(s)
Boswellia/química , Suplementos Dietéticos/análisis , Descubrimiento de Drogas/instrumentación , Ribosomas/efectos de los fármacos , Ribosomas/metabolismo , Triterpenos/farmacología , Cromatografía de Afinidad , Células HeLa , Humanos , Espectrometría de Masas , Biosíntesis de Proteínas/efectos de los fármacos , Proteómica , Resinas de Plantas/química , Triterpenos/química , Triterpenos/metabolismo
7.
Cell Death Dis ; 5: e1472, 2014 Oct 16.
Artículo en Inglés | MEDLINE | ID: mdl-25321479

RESUMEN

Numb asymmetrically segregates at mitosis to control cell fate choices during development. Numb inheritance specifies progenitor over differentiated cell fates, and, paradoxically, also promotes neuronal differentiation, thus indicating that the role of Numb may change during development. Here we report that Numb nuclear localization is restricted to early thymocyte precursors, whereas timed appearance of pre-T-cell receptor (pre-TCR) and activation of protein kinase Cθ promote phosphorylation-dependent Numb nuclear exclusion. Notably, nuclear localization of Numb in early thymocyte precursors favors p53 nuclear stabilization, whereas pre-TCR-dependent Numb nuclear exclusion promotes the p53 downmodulation essential for further differentiation. Accordingly, the persistence of Numb in the nucleus impairs the differentiation and promotes precursor cell death. This study reveals a novel regulatory mechanism for Numb function based on its nucleus-cytosol shuttling, coupling the different roles of Numb with different stages of T-cell development.


Asunto(s)
Proteínas de la Membrana/metabolismo , Proteínas del Tejido Nervioso/metabolismo , Células Precursoras de Linfocitos T/citología , Células Precursoras de Linfocitos T/metabolismo , Receptores de Antígenos de Linfocitos T/metabolismo , Proteína p53 Supresora de Tumor/metabolismo , Transporte Activo de Núcleo Celular , Animales , Muerte Celular , Diferenciación Celular , Núcleo Celular/metabolismo , Células HEK293 , Humanos , Isoenzimas/metabolismo , Ratones , Modelos Biológicos , Fosforilación , Complejo de la Endopetidasa Proteasomal/metabolismo , Proteína Quinasa C/metabolismo , Proteína Quinasa C-theta , Estabilidad Proteica , Proteolisis , Transducción de Señal , Fracciones Subcelulares/metabolismo
8.
Am J Hosp Palliat Care ; 30(3): 271-8, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-22669936

RESUMEN

BACKGROUND: Clinicians meet a variety of ethnicities among patients and families in hospice programs. This article focuses on Latino families. METHODS: Within a controlled trial of family therapy in the context of palliative care, 17 families identified as Hispanic. Five were examined qualitatively herein. RESULTS: A synopsis of each family's narrative is presented here. Patterns of strong family loyalty (Familismo), the gender roles of Machismo and Marianismo, the importance of family tradition, expectations about caregiving, and the place of faith and religion emerged as prominent and able potentially to impact on the therapy. CONCLUSIONS: Family therapists need to be thoughtful about cultural issues as they strive to support families.


Asunto(s)
Hispánicos o Latinos/etnología , Cuidados Paliativos , Adolescente , Adulto , Cuidadores/psicología , Niño , Cultura , Familia/etnología , Familia/psicología , Terapia Familiar , Femenino , Identidad de Género , Pesar , Hispánicos o Latinos/psicología , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/etnología , Neoplasias/terapia , Religión y Medicina , Valores Sociales
9.
Farmaco Sci ; 40(9): 630-44, 1985 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-3841074

RESUMEN

Some 2-substituted 3-pyridinolethers were synthesized, with one side chain bearing a carboxylic function; among these there are products having structure analogies with the prostaglandins. The results of hypolipidemic and hypocholesterolemic tests on experimental hyperdyslipidemic animals, as well as those on the inhibition of platelets aggregation and on fibrinolytic activity are reported.


Asunto(s)
Hipolipemiantes/síntesis química , Aceites de Plantas , Agregación Plaquetaria/efectos de los fármacos , Piridinas/síntesis química , Animales , Anticolesterolemiantes/antagonistas & inhibidores , Fenómenos Químicos , Química , Etanol/administración & dosificación , Femenino , Humanos , Hiperlipidemias/inducido químicamente , Masculino , Margarina/administración & dosificación , Ratones , Aceites/administración & dosificación , Aceite de Oliva , Polietilenglicoles/administración & dosificación , Piridinas/administración & dosificación , Piridinas/farmacología , Ratas , Ratas Endogámicas , Triglicéridos/sangre
10.
Ric Clin Lab ; 15(1): 79-88, 1985.
Artículo en Inglés | MEDLINE | ID: mdl-3922042

RESUMEN

In order to study effects of different total parenteral nutritional regimens on the recovery of liver function and on plasma amino acid pattern after major hepatectomy, twelve healthy mongrel dogs were submitted to 70% liver resection and randomly divided into three different groups: group I (control group) received only 10% glucose; group II received 10% glucose plus 8.5% Freamine; group III received 10% glucose plus 100% branched chain amino acid (BCAA) solution. Blood samples were analyzed for determining biochemical parameters, including plasma amino acid levels, before surgery and on 3rd and 7th postoperative day. The 'BCAA group', compared to other groups, showed higher values of plasma proteins (p less than 0.01) and prothrombin activity (p less than 0.05) on the 3rd postoperative day. The total concentration of plasma amino acids decreased after hepatectomy. Gluconeogenetic amino acids alanine and glutamine were markedly decreased in groups II and III, likely due to their increased consumption during gluconeogenesis. Aromatic amino acids were increased in all groups, due to the transient liver insufficiency. BCAA markedly increased in group III on 3rd postoperative day and returned to basal values on 7th postoperative day; possible explanations of such alterations are discussed. Our findings suggest that BCAA may represent a first choice substrate in the early phase after hepatectomy.


Asunto(s)
Aminoácidos de Cadena Ramificada/farmacología , Aminoácidos/sangre , Hepatectomía , Hígado/fisiología , Nutrición Parenteral Total , Nutrición Parenteral , Animales , Análisis Químico de la Sangre , Perros , Infusiones Parenterales , Tiempo de Protrombina
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA