Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
1.
Liver International ; 42(7):1618-1628, 2022.
Artículo en Inglés | Academic Search Complete | ID: covidwho-1923016

RESUMEN

Background: Liver transplant recipients require specific clinical and psychosocial attention given their frailty. Main aim of the study was to assess the quality of life after liver transplant during the current pandemic. Methods: This multicentre study was conducted in clinically stable, liver transplanted patients. Enrollment opened in June and finished in September 2021. Patients completed a survey including lifestyle data, quality of life (Short Form health survey), sport, employment, diet. To examine the correlations, we calculated Pearson coefficients while to compare subgroups, independent samples t‐tests and ANOVAs. To detect the predictors of impaired quality of life, we used multivariable logistic regression analysis. Results: We analysed data from 511 patients observing significant associations between quality of life's physical score and both age and adherence to Mediterranean diet (p <.01). A significant negative correlation was observed between mental score and the sedentary activity (p <.05). Female patients scored significantly lower than males in physical and mental score. At multivariate analysis, females were 1.65 times more likely to report impaired physical score than males. Occupation and physical activity presented significant positive relation with quality of life. Adherence to Mediterranean diet was another relevant predictor. Regarding mental score, female patients were 1.78 times more likely to show impaired mental score in comparison with males. Sedentary activity and adherence to Mediterranean diet were further noteworthy predictors. Conclusions: Females and subjects with sedentary lifestyle or work inactive seem to show the worst quality of life and both physical activity and Mediterranean diet might be helpful to improve it. [ FROM AUTHOR] Copyright of Liver International is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)

2.
Panminerva Med ; 64(3): 384-395, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: covidwho-1552035

RESUMEN

As the Coronavirus 2019 disease (COVID-19) pandemic is going through its second year, the world is counting more than 4.9 million lives lost. Many repurposed immunomodulatory drugs have been tried and failed to treat COVID-19. The only successful treatments that improve survival are systemic corticosteroids and tocilizumab, by targeting the systemic inflammatory cascade. An intriguing observation that patients with chronic respiratory disease seem to be less prone to COVID-19 gave ground to the hypothesis that inhaled corticosteroids (ICS) may protect them from SARS-CoV-2 infection. In this review, we summarize current evidence regarding the therapeutic role of inhaled and systemic corticosteroids in COVID-19, and we present experimental data on the potential actions of ICS against SARS-CoV-2 infection. We also discuss safety issues as well as therapeutic considerations and clinical implications of the use of ICS in COVID-19. Four randomized controlled trials (RCT) with more than 3000 participants suggest that ICS may lead to earlier clinical improvement and lower rate of hospitalization in patients with mild COVID-19, while 9 ongoing RCTs are anticipated to provide more evidence for the use of ICS in COVID-19. Recent evidence has shown promise that ICS could provide tangible benefits to patients suffering from COVID-19.


Asunto(s)
COVID-19 , Corticoesteroides/uso terapéutico , Hospitalización , Humanos , SARS-CoV-2
3.
Int J Mol Sci ; 22(16)2021 Aug 22.
Artículo en Inglés | MEDLINE | ID: covidwho-1372662

RESUMEN

Natural products of microbial origin have inspired most of the commercial pharmaceuticals, especially those from Actinobacteria. However, the redundancy of molecules in the discovery process represents a serious issue. The untargeted approach, One Strain Many Compounds (OSMAC), is one of the most promising strategies to induce the expression of silent genes, especially when combined with genome mining and advanced metabolomics analysis. In this work, the whole genome of the marine isolate Rhodococcus sp. I2R was sequenced and analyzed by antiSMASH for the identification of biosynthetic gene clusters. The strain was cultivated in 22 different growth media and the generated extracts were subjected to metabolomic analysis and functional screening. Notably, only a single growth condition induced the production of unique compounds, which were partially purified and structurally characterized by liquid chromatography high-resolution tandem mass spectrometry (LC-HRMS/MS). This strategy led to identifying a bioactive fraction containing >30 new glycolipids holding unusual functional groups. The active fraction showed a potent antiviral effect against enveloped viruses, such as herpes simplex virus and human coronaviruses, and high antiproliferative activity in PC3 prostate cancer cell line. The identified compounds belong to the biosurfactants class, amphiphilic molecules, which play a crucial role in the biotech and biomedical industry.


Asunto(s)
Antivirales/metabolismo , Glucolípidos/metabolismo , Rhodococcus/metabolismo , Animales , Antivirales/análisis , Chlorocebus aethiops , Técnicas de Cultivo , Ensayos de Selección de Medicamentos Antitumorales , Ésteres/metabolismo , Genoma Bacteriano , Glucolípidos/química , Humanos , Metaboloma , Pruebas de Sensibilidad Microbiana , Estructura Molecular , Células PC-3 , Rhodococcus/química , Rhodococcus/genética , Succinatos/metabolismo , Tensoactivos/química , Tensoactivos/metabolismo , Células Vero
4.
Intern Emerg Med ; 17(1): 15-24, 2022 01.
Artículo en Inglés | MEDLINE | ID: covidwho-1303368

RESUMEN

In 2020, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) also known as coronavirus disease 2019 (COVID-19) disrupted global health, causing hundreds of thousands of deaths worldwide. The liver injury appears to be one of the possible systemic manifestations of COVID-19 disease although the mechanisms causing such injury are not entirely clear. At the beginning of the pandemic, patients with chronic diseases, such as liver cirrhosis, or special populations, such as liver transplant recipients, were considered at higher risk of complications and poor clinical outcomes. Thus, the national transplant programmes have been severely hampered by the COVID-19 pandemic. Furthermore, liver transplant patients are potentially more vulnerable to SARS-CoV-2 infection due to immune suppression, ageing, and metabolic or cardiovascular comorbidities. This review analyses the increasing amounts of data collected in recent months concerning liver cirrhosis and liver transplants to understand if this finding is still relevant with respect to COVID-19 manifestations.


Asunto(s)
COVID-19 , Trasplante de Hígado , Humanos , Hígado , Pandemias , SARS-CoV-2
5.
Viruses ; 13(7)2021 06 29.
Artículo en Inglés | MEDLINE | ID: covidwho-1289028

RESUMEN

Vitis vinifera represents an important and renowned source of compounds with significant biological activity. Wines and winery bioproducts, such as grape pomace, skins, and seeds, are rich in bioactive compounds against a wide range of human pathogens, including bacteria, fungi, and viruses. However, little is known about the biological properties of vine leaves. The aim of this study was the evaluation of phenolic composition and antiviral activity of Vitis vinifera leaf extract against two human viruses: the Herpes simplex virus type 1 (HSV-1) and the pandemic and currently widespread severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). About 40 phenolic compounds were identified in the extract by HPLC-MS/MS analysis: most of them were quercetin derivatives, others included derivatives of luteolin, kaempferol, apigenin, isorhamnetin, myricetin, chrysoeriol, biochanin, isookanin, and scutellarein. Leaf extract was able to inhibit both HSV-1 and SARS-CoV-2 replication in the early stages of infection by directly blocking the proteins enriched on the viral surface, at a very low concentration of 10 µg/mL. These results are very promising and highlight how natural extracts could be used in the design of antiviral drugs and the development of future vaccines.


Asunto(s)
Antivirales/farmacología , Herpesvirus Humano 1/efectos de los fármacos , Extractos Vegetales/farmacología , Hojas de la Planta/química , SARS-CoV-2/efectos de los fármacos , Vitis/química , Células A549 , Animales , Productos Biológicos/análisis , Productos Biológicos/farmacología , Línea Celular , Chlorocebus aethiops , Cromatografía Líquida de Alta Presión , Humanos , Células MCF-7 , Fenoles/farmacología , Extractos Vegetales/análisis , Espectrometría de Masas en Tándem , Células Vero
6.
Ann Am Thorac Soc ; 18(6): 1020-1026, 2021 06.
Artículo en Inglés | MEDLINE | ID: covidwho-1006326

RESUMEN

Rationale: Treatment with noninvasive ventilation (NIV) in coronavirus disease (COVID-19) is frequent. Shortage of intensive care unit (ICU) beds led clinicians to deliver NIV also outside ICUs. Data about the use of NIV in COVID-19 is limited.Objectives: To describe the prevalence and clinical characteristics of patients with COVID-19 treated with NIV outside the ICUs. To investigate the factors associated with NIV failure (need for intubation or death).Methods: In this prospective, single-day observational study, we enrolled adult patients with COVID-19 who were treated with NIV outside the ICU from 31 hospitals in Lombardy, Italy.Results: We collected data on demographic and clinical characteristics, ventilatory management, and patient outcomes. Of 8,753 patients with COVID-19 present in the hospitals on the study day, 909 (10%) were receiving NIV outside the ICU. A majority of patients (778/909; 85%) patients were treated with continuous positive airway pressure (CPAP), which was delivered by helmet in 617 (68%) patients. NIV failed in 300 patients (37.6%), whereas 498 (62.4%) patients were discharged alive without intubation. Overall mortality was 25%. NIV failure occurred in 152/284 (53%) patients with an arterial oxygen pressure (PaO2)/fraction of inspired oxygen (FiO2) ratio <150 mm Hg. Higher C-reactive protein and lower PaO2/FiO2 and platelet counts were independently associated with increased risk of NIV failure.Conclusions: The use of NIV outside the ICUs was common in COVID-19, with a predominant use of helmet CPAP, with a rate of success >60% and close to 75% in full-treatment patients. C-reactive protein, PaO2/FiO2, and platelet counts were independently associated with increased risk of NIV failure.Clinical trial registered with ClinicalTrials.gov (NCT04382235).


Asunto(s)
COVID-19/terapia , Presión de las Vías Aéreas Positiva Contínua/métodos , Mortalidad Hospitalaria , Hipoxia/terapia , Intubación Intratraqueal/estadística & datos numéricos , Ventilación no Invasiva/métodos , Habitaciones de Pacientes , Insuficiencia Respiratoria/terapia , Anciano , Cánula , Femenino , Humanos , Unidades de Cuidados Intensivos , Italia , Masculino , Persona de Mediana Edad , Terapia por Inhalación de Oxígeno , Estudios Prospectivos , SARS-CoV-2 , Insuficiencia del Tratamiento
7.
Aging (Albany NY) ; 12(24): 24522-24534, 2020 12 22.
Artículo en Inglés | MEDLINE | ID: covidwho-1000740

RESUMEN

INTRODUCTION: The COVID-19 pandemic caused an increased mortality in nursing homes due to its quick spread and the age-related high lethality. RESULTS: We observed a two-month mortality of 40%, compared to 6.4% in the previous year. This increase was seen in both COVID-19 positive (43%) and negative (24%) residents, but 8 patients among those testing negative on the swab, tested positive on serological tests. Increased mortality was associated with male gender, older age, no previous vitamin D supplementation and worse "activities of daily living (ADL)" scores, such as Barthel index, Tinetti scale and S.OS.I.A. CONCLUSION: Our data confirms a higher geriatric mortality due to COVID-19. Negative residents also had higher mortality, which we suspect is secondary to preanalytical error and a low sensitivity of the swab test in poorly compliant subjects. Male gender, older age and low scores on ADL scales (probably due to immobility) are risk factors for COVID-19 related mortality. Finally, mortality was inversely associated with vitamin D supplementation. DESIGN: In this observational study, we described the two-month mortality among the 157 residents (age 60-100) of a nursing home after Sars-CoV-2 spreading, reporting the factors associated with the outcome. We also compared the diagnostic tests for Sars-CoV-2.


Asunto(s)
COVID-19/mortalidad , Casas de Salud , SARS-CoV-2 , Actividades Cotidianas , Factores de Edad , Anciano , Anciano de 80 o más Años , COVID-19/diagnóstico , COVID-19/terapia , COVID-19/virología , Suplementos Dietéticos , Femenino , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Mortalidad , Pandemias , Sensibilidad y Especificidad , Factores Sexuales , Vitamina D/administración & dosificación
8.
Intern Emerg Med ; 15(8): 1507-1515, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: covidwho-802945

RESUMEN

Transplant programs have been severely disrupted by the COVID-19 pandemic. Italy was one of the first countries with the highest number of deaths in the world due to SARS-CoV-2. Here we propose a management model for the reorganization of liver transplant (LT) activities and policies in a local intensive care unit (ICU) assigned to liver transplantation affected by restrictions on mobility and availability of donors and recipients as well as health personnel and beds. We describe the solutions implemented to continue transplantation activities throughout a given pandemic: management of donors and recipients' LT program, ICU rearrangement, healthcare personnel training and monitoring to minimize mortality rates of patients on the waiting list. Transplantation activities from February 22, 2020, the data of first known COVID-19 case in Italy's Emilia Romagna region to June 30, 2020, were compared with the corresponding period in 2019. During the 2020 study period, 38 LTs were performed, whereas 41 were performed in 2019. Patients transplanted during the COVID-19 pandemic had higher MELD and MELD-Na scores, cold ischaemia times, and hospitalization rates (p < 0.05); accordingly, they spent fewer days on the waitlist and had a lower prevalence of hepatocellular carcinoma (p < 0.05). No differences were found in the provenance area, additional MELD scores, age of donors and recipients, BMI, re-transplant rates, and post-transplant mortality. No transplanted patients contracted COVID-19, although five healthcare workers did. Ultimately, our policy allowed us to continue the ICU's operations by prioritizing patients hospitalized with higher MELD without any case of transplant infection due to COVID-19.


Asunto(s)
Cuidados Críticos/métodos , Trasplante de Hígado/métodos , Pandemias/estadística & datos numéricos , Adulto , COVID-19 , Infecciones por Coronavirus/complicaciones , Infecciones por Coronavirus/epidemiología , Cuidados Críticos/tendencias , Aglomeración , Enfermedad Hepática en Estado Terminal/complicaciones , Enfermedad Hepática en Estado Terminal/epidemiología , Enfermedad Hepática en Estado Terminal/cirugía , Femenino , Humanos , Unidades de Cuidados Intensivos/organización & administración , Unidades de Cuidados Intensivos/estadística & datos numéricos , Italia/epidemiología , Trasplante de Hígado/normas , Trasplante de Hígado/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Neumonía Viral/complicaciones , Neumonía Viral/epidemiología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA