118 research outputs found
Anti-inflammatory evaluation and antioxidant potential of Senna crotalarioides and Penstemon roseus.
Las propiedades antiinflamatorias y antioxidantes de los extractos de cloroformo, metanol y agua de Penstemon roseus y Senna crotalarioides fueron investigadas. El extracto acuoso no tuvo actividad sobre el edema auricular inducido con TPA, pero el extracto de cloroformo y etanol de ambas plantas inhibieron significativamente el edema. El extracto de cloroformo mostró actividad sobre el edema plantar inducido con carragenina y el edema auricular en ratón inducido por múltiples aplicaciones de TPA, y solo P. roseus y S. crotalarioides tuvieron la mejor actividad en las pruebas de DPPH y poder reductor. Los valores de la DL50 en ratón de ambos extractos de cloroformo son considerados con ligera toxicidad aguda y mayores que las dosis empleadas en el estudio.Chloroform, methanol and aqueous extracts of Penstemon roseus and Senna crotalarioides were investigated for their anti-inflammatory and antioxidant properties. The aqueous extract had no activity on TPA-induced ear edema, but the chloroform and methanol extracts of both plants caused a significant inhibition of the edema. The chloroform extracts showed activity on carrageenan-induced paw edema and mouse ear edema induced by multiple topical applications of TPA, and only P. roseus (dose of 100 mg/kg) exhibited anti-arthritic activity. The methanol extracts of P. roseus and S. crotalarioides had the most activity in the DPPH and reducing power tests. The LD50 values in mice of both chloroform extracts were considerate as slight acute toxic and higher than the doses used in this study
Producción, comercio y consumo en el interior peninsular durante los siglos IV-VI d. C. a partir del estudio de la cerámica del yacimiento de Carranque (Toledo) (1988-2003)
We present the study of ceramic productions from the Late Antique period (IV-VI AD) from the excavations carried out in the palatial building of Carranque (Toledo) from 1988 to 2003. The lack of stratigraphic methodology and context of this material determines and hinders its study, although the analysis of the whole assemblage has proved essential for the identification of the ceramic productions present at the site during this period and to trace, through comparison with the ceramics from stratigraphic contexts (2009-2010), the dynamics and patterns of production, consumption, and trade in which the site was involved during the Late Antiquity period (4th-6th century AD).Presentamos el estudio de producciones cerámicas de ámbito tardoantiguo (IV-VI d. C.) procedentes de las excavaciones realizadas en el edificio palacial de Carranque (Toledo) durante las campañas de 1988 a 2003. La ausencia de metodología estratigráfica y contexto de este material condiciona y lastra su estudio, si bien el análisis íntegro del conjunto se ha demostrado esencial para la identificación de las producciones cerámicas presentes en el yacimiento durante ese periodo (TSHT, TSHTM, TSA D, lucernas africanas y ánforas) y para trazar, a partir del cotejo con las cerámicas halladas en contextos cerrados con metodología estratigráfica (campañas 2009 y 2010), las dinámicas y patrones de producción, consumo y comercio en las que se hallaba inserto el yacimiento a lo largo de la Tardoantigüedad (IV-VI d. C.)
Pharmaceutical and Botanical Management of Pain Associated with Psychopathology: A Narrative Review
Generally, pain can be described as an unpleasant sensory or emotional experience associated with tissue damage. Chronic pain has become a public health problem because among 35 and 75% of the world population has shown the symptom. In particular, neuropathic pain has shown high comorbidity disorders such as anxiety and depression. Conventional therapies for treating pain include nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, tricyclic antidepressants, anticonvulsants, and opioids, which usually cause some side effects such as gastritis, headache, liver and kidney toxicity, and drug dependence. Conventional pharmaceuticals also tend to be expensive, and they cannot be easily afforded in developing countries, which have led to the use of natural products as an alternative treatment. In this chapter, we reviewed the current research of natural products for pain treatment. We also describe preclinical studies that assess the effect of some natural products on pain therapy, phytochemistry research, toxicity, adverse effects, and biosecurity. We also describe how conventional pain is managed and the possible use of compounds obtained from vegetable species for pain treatment
Cytotoxic cell populations developed during treatment with tyrosine kinase inhibitors protect autologous CD4+ T cells from HIV-1 infection
Factor de impacto: 5,858 Q1Tyrosine kinase inhibitors (TKIs) are successfully used in clinic to treat chronic myeloid leukemia (CML). Our group previously described that CD4+ T cells from patients with CML on treatment with TKIs such as dasatinib were resistant to HIV-1 infection ex vivo. The main mechanism for this antiviral activity was primarily based on the inhibition of SAMHD1 phosphorylation, which preserves the activity against HIV-1 of this innate immune factor. Approximately 50% CML patients who achieved a deep molecular response (DMR) may safely withdraw TKI treatment without molecular recurrence. Therefore, it has been speculated that TKIs may induce a potent antileukemic response that is maintained in most patients even one year after treatment interruption (TI). Subsequent to in vitro T-cell activation, we observed that SAMHD1 was phosphorylated in CD4+ T cells from CML patients who withdrew TKI treatment more than one year earlier, which indicated that these cells were now susceptible to HIV-1 infection. Importantly, these patients were seronegative for HIV-1 and seropositive for cytomegalovirus (CMV), but without CMV viremia. Although activated CD4+ T cells from CML patients on TI were apparently permissive to HIV-1 infection ex vivo, the frequency of proviral integration was reduced more than 12-fold on average when these cells were infected ex vivo in comparison with cells isolated from untreated, healthy donors. This reduced susceptibility to infection could be related to an enhanced NK-dependent cytotoxic activity, which was increased 8-fold on average when CD4+ T cells were infected ex vivo with HIV-1 in the presence of autologous NK cells. Enhanced cytotoxic activity was also observed in CD8 + T cells from these patients, which showed 8-fold increased expression of TCRγδ and more than 18-fold increased production of IFNγ upon activation with CMV peptides. In conclusion, treatment with TKIs induced a potent antileukemic response that may also have antiviral effects against HIV-1 and CMV, suggesting that transient use of TKIs in HIV-infected patients could develop a sustained antiviral response that would potentially interfere with HIV-1 reservoir dynamics.This work was supported by NIH grant R01AI143567; the Spanish Ministry of Economy and Competitiveness (SAF2016-78480-R); the Spanish AIDS Research Network RD16CIII/0002/0001 that is included in Acción Estratégica en Salud, Plan Nacional de Investigación Científica, Desarrollo e Innovación Tecnológica 2016-2020, Instituto de Salud Carlos III, European Region Development Fund (ERDF). The work of María Rosa López-Huertas and Sara Rodríguez-Mora is financed by NIH grant R01AI143567. The work of Lorena Vigón is supported by a pre-doctoral grant from Instituto de Salud Carlos III (FIS PI16CIII/00034-ISCIII-FEDER). The work of Elena Mateos is supported by the Spanish Ministry of Economy and Competitiveness SAF2016-78480-R.S
Clinical Factors, Preventive Behaviours and Temporal Outcomes Associated with COVID-19 Infection in Health Professionals at a Spanish Hospital
The authors thank K. Shashok for improving the use of English in
the manuscript.The novel coronavirus disease (COVID-19) outbreak has quickly spread around the world,
with Spain being one of the most severely affected countries. Healthcare professionals are an important
risk group given their exposure. The aims of this study were to determine the prevalence of symptoms,
main concerns as patients, preventive behaviours of healthcare professionals, and the different
temporal outcomes associated with the negativization of PCR results. A total of 238 professionals
were analysed and follow-up was conducted from 11 March to 21 April 2020 through clinical
records, in-depth surveys, and telephone interviews. Symptoms, concerns, and preventive measures
were documented, and temporal outcomes (start and end of symptoms, first positive PCR, and
negativization of PCR) were analysed through survival analyses. A high prevalence of gastrointestinal
symptoms (especially in women and older professionals), fever, cough, and fatigue were reported.
The main concern was contagion in the work and home environment. Professionals (especially men)
reported low use of face masks before the pandemic. Our analysis indicates that the median times for
the negativization of PCR testing to confirm the resolution of infection is 15 days after the end of
symptoms, or 25 days after the first positive PCR test. Our results suggest that these times are longer
for women and for professionals aged ≥55 years, therefore follow-up strategies should be optimized
in light of both variables. This is the first study we are aware of to report factors associated with
the time to negativization of PCR results. We present the first rigorous estimates of time outcomes
and hope that these data can be valuable to continue feeding the prediction models that are currently
being developed. Similar studies are required to corroborate our results.Chair of Teaching and Research in Family Medicine SEMERGEN-UGR. University of Granad
Sociodemographic, clinical and laboratory factors on admission associated with COVID19 mortality in hospitalized patients: A retrospective observational study
Background
To identify and quantify associations between baseline characteristics on hospital admission and mortality in patients with COVID-19 at a tertiary hospital in Spain.
Methods and findings
This retrospective case series included 238 patients hospitalized for COVID-19 at Hospital
Universitario Clı´nico San Cecilio (Granada, Spain) who were discharged or who died. Electronic medical records were reviewed to obtain information on sex, age, personal antecedents, clinical features, findings on physical examination, and laboratory results for each
patient. Associations between mortality and baseline characteristics were estimated as hazard ratios (HR) calculated with Cox regression models.
Series mortality was 25.6%. Among patients with dependence for basic activities of daily
living, 78.7% died, and among patients residing in retirement homes, 80.8% died. The variables most clearly associated with a greater hazard of death were age (3% HR increase per
1-year increase in age; 95%CI 1–6), diabetes mellitus (HR 2.42, 95%CI 1.43–4.09), SatO2/
FiO2 ratio (43% HR reduction per 1-point increase; 95%CI 23–57), SOFA score (19% HR
increase per 1-point increase, 95%CI 5–34) and CURB-65 score (76% HR increase per 1-
point increase, 95%CI 23–143).
Conclusions
The patients residing in retirement homes showed great vulnerability. The main baseline
factors that were independently associated with mortality in patients hospitalized for
COVID-19 were older age, diabetes mellitus, low SatO2/FiO2 ratio, and high SOFA and
CURB-65 scores.Fondos Estructurales de la Union Europea (FEDER)Unit of Excellence on Exercise and Health (UCEES), University of Granad
Estudio para la mejora de las prácticas del Grado y Máster en Trabajo Social: Bases para la modificación del curriculum académico
Este proyecto la Facultad de Trabajo Social de la UCM valora la adecuación de la estructura y los contenidos del practicum de grado de Trabajo Social, para realizar una modificación del mismo acorde a las necesidades formativas teórico-prácticas del alumnado en su futura inserción profesional
Potential relation of cardiovascular risk factors to disease activity in patients with axial spondyloarthritis
Background: Axial spondyloarthritis (axSpA) patients are known to have a higher prevalence of several comorbidities, including, among others, an increased risk of atherosclerosis, hypertension, dyslipidemia, and diabetes. The purpose of the present study was to determine whether the sum of traditional cardiovascular (CV) risk factors is related to disease characteristics, such as disease activity, in patients with axSpA.
Methods: A cross-sectional study that encompassed 804 patients with axSpA was conducted. Patients were assessed for the presence of five traditional CV risk factors (diabetes mellitus, dyslipidemia, hypertension, obesity, and smoking status), and disease activity measurements. A multivariable regression analysis was performed to evaluate whether the number of classic CV risk factors was independently associated with specific features of the disease, to include disease activity.
Results: A multivariable analysis showed that Ankylosing Spondylitis Disease Activity Score-C reactive protein (ASDAS-CRP) activity score was significantly higher in patients with 1 [beta coefficient 0.3 (95% confidence interval (CI) 0.1-0.5), p = 0.001] and ?2 [beta coefficient 0.5 (95% CI 0.3-0.7), p = 0.000] CV risk factors compared with those without CV risk factors. Similarly, patients with 1 [OR 2.00 (95%CI 0.99-4.02), p = 0.053] and ?2 [OR 3.39 (95%CI 1.82-6.31), p = 0.000] CV risk factors had a higher odds ratio for the presence of high disease activity compared with the zero CV category. The Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) activity score was significantly associated with the number of CV risk factors, being higher in patients with more CV risk factors. These relationships showed a CV risk factor-dependent effect being beta coefficients and ORs higher for the effect of ?2 over 1 CV risk factor.
Conclusion: Among patients with axSpA, as the number of traditional CV risk factors increased, disease activity similarly increases in an independent manner.Funding: The authors disclosed receipt of the following financial support for the research, authorship, and/ or publication of this article: This research was funded by a grant to MAG-G from the Instituto de Salud Carlos III (ISCIII) (Fondo de Investigación Sanitaria grants PI06/0024, PI09/00748, PI12/00060, PI15/00525, PI18/00043) and the ISCIII RETICS programs (RD12/0009 and RD16/0012)
Lack of validation of genetic variants associated with anti-tumor necrosis factor therapy response in rheumatoid arthritis: a genome-wide association study replication and meta-analysis
Introduction: In this study, our aim was to elucidate the role of four polymorphisms identified in a prior large genome-wide association study (GWAS) in which the investigators analyzed the responses of patients with rheumatoid arthritis (RA) to treatment with tumor necrosis factor inhibitors (TNFi). The authors of that study reported that the four genetic variants were significantly associated. However, none of the associations reached GWAS significance, and two subsequent studies failed to replicate these associations. Methods: The four polymorphisms (rs12081765, rs1532269, rs17301249 and rs7305646) were genotyped in a total of 634 TNFi-treated RA patients of Spanish Caucasian origin. Four outcomes were evaluated: changes in the Disease Activity Score in 28 joints (DAS28) after 6 and 12 months of treatment and classification according to the European League Against Rheumatism (EULAR) response criteria at the same time points. Association with DAS28 changes was assessed by linear regression using an additive genetic model. Contingency tables of genotype and allele frequencies between EULAR responder and nonresponder patients were compared. In addition, we combined our data with those of previously reported studies in a meta-analysis including 2,998 RA patients. Results: None of the four genetic variants showed an association with response to TNFi in any of the four outcomes analyzed in our Spanish patients. In addition, only rs1532269 yielded a suggestive association (P = 0.0033) with the response to TNFi when available data from previous studies were combined in the meta-analysis. Conclusion: Our data suggest that the rs12081765, rs1532269, rs17301249 and rs7305646 genetic variants do not have a role as genetic predictors of TNFi treatment outcomes
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