33 research outputs found
El activismo religioso conservador en Latinoamérica
Pertenece a la colección Religión, Género y Sexualidad / dirigida por Juan M. Vaggione ; v.3El libro reúne un conjunto de análisis que ponen en evidencia la heterogeneidad y la complejidad de las estrategias de influencia de la religión como uno de los principales sostenes de sistemas heteronormativos en nuestras sociedades contemporáneas. Tanto al nivel de los actores como de los discursos, las formas en que las religiones influencian las discusiones sobre políticas de sexualidad han adoptado diversas modalidades de actuación adaptándose a los momentos políticos. Así, los artículos que integran la compilación se dirigen a complejizar el rol de lo religioso en la política sexual contemporánea incluyendo en esta problematización distintos ejes de análisis y marcos teóricos. Haciendo foco en diferentes países de América Latina, con sus escenarios y problemas, los artículos abordan las variadas dimensiones del activismo religioso conservador en nuestra región
Identification and functional characterisation of ctr1, a Pleurotus ostreatus gene coding for a copper transporter
Identification and functional characterisation of ctr1, a Pleurotus ostreatus gene coding for a copper transporter
Resumen del poster presentado al VI Meeting on Genetics and Cellular Biology of Basidiomycetes (GCBB-VI), organizado por y celebrado en la Universidad Pública de Navarra el 3-6 de junio de 2005.Copper homeostasis is primordial for life maintenance and especially relevant
for ligning-degrading fungi whose phenol-oxidase enzymes depend on
this micronutrient for their activity. In this paper we report the identification
of a gene (ctr1), coding for a copper transporter in the white rot fungus Pleurotus
ostreatus, in a cDNA library constructed from four-days old vegetative
mycelium growing in submerged culture. The results presented here indicate
that: (1) ctr1 functionally complements the respiratory deficiency of a yeast
mutant defective in copper transport supporting the transport activity of the
Ctr1 protein; (2) ctr1 transcription is detected in all P. ostreatus developmental
stages (with exception of lamellae) and is negatively regulated by the presence
of copper in the culture media; (3) ctr1 is a single copy gene that maps
to P. ostreatus linkage group III; and (4) the regulatory sequence elements
found in the promoter of ctr1 agree with those found in other copper related
genes described in other systems. These results provide the first description
of a copper transporter in this white rot fungus and open the possibility of
further studies on copper metabolism in higher basidiomyetes
Cardiac index-guided therapy to maintain optimised postinduction cardiac index in high-risk patients having major open abdominal surgery : the multicentre randomised iPEGASUS trial
It is unclear whether optimising intraoperative cardiac index can reduce postoperative complications. We tested the hypothesis that maintaining optimised postinduction cardiac index during and for the first 8 h after surgery reduces the incidence of a composite outcome of complications within 28 days after surgery compared with routine care in high-risk patients having elective major open abdominal surgery. In three German and two Spanish centres, high-risk patients having elective major open abdominal surgery were randomised to cardiac index-guided therapy to maintain optimised postinduction cardiac index (cardiac index at which pulse pressure variation was <12%) during and for the first 8 h after surgery using intravenous fluids and dobutamine or to routine care. The primary outcome was the incidence of a composite outcome of moderate or severe complications within 28 days after surgery. We analysed 318 of 380 enrolled subjects. The composite primary outcome occurred in 84 of 152 subjects (55%) assigned to cardiac index-guided therapy and in 77 of 166 subjects (46%) assigned to routine care (odds ratio: 1.87, 95% confidence interval: 1.03-3.39, P=0.038). Per-protocol analyses confirmed the results of the primary outcome analysis. Maintaining optimised postinduction cardiac index during and for the first 8 h after surgery did not reduce, and possibly increased, the incidence of a composite outcome of complications within 28 days after surgery compared with routine care in high-risk patients having elective major open abdominal surgery. Clinicians should not strive to maintain optimised postinduction cardiac index during and after surgery in expectation of reducing complications. Clinical trial registration: NCT03021525
FOSL1 promotes cholangiocarcinoma via transcriptional effectors that could be therapeutically targeted
[EN] Background & Aims: Cholangiocarcinoma (CCA) is a neoplasia of
the biliary tract driven by genetic, epigenetic and transcriptional
mechanisms. Herein, we investigated the role of the transcription
factor FOSL1, as well as its downstream transcriptional effectors,
in the development and progression of CCA.
Methods: FOSL1 was investigated in human CCA clinical samples.
Genetic inhibition of FOSL1 in human and mouse CCA cell
lines was performed in in vitro and in vivo models using
constitutive and inducible short-hairpin RNAs. Conditional
FOSL1 ablation was done using a genetically engineered mouse
(GEM) model of CCA (mutant KRAS and Trp53 knockout). Followup
RNA and chromatin immunoprecipitation (ChIP) sequencing
analyses were carried out and downstream targets were validated
using genetic and pharmacological inhibition.
Results: An inter-species analysis of FOSL1 in CCA was conducted.
First, FOSL1 was found to be highly upregulated in human
and mouse CCA, and associated with poor patient survival.
Pharmacological inhibition of different signalling pathways in
CCA cells converged on the regulation of FOSL1 expression.
Functional experiments showed that FOSL1 is required for cell
proliferation and cell cycle progression in vitro, and for tumour
growth and tumour maintenance in both orthotopic and subcutaneous
xenograft models. Likewise, FOSL1 genetic abrogation
in a GEM model of CCA extended mouse survival by decreasing
the oncogenic potential of transformed cholangiocytes. RNA and
ChIP sequencing studies identified direct and indirect transcriptional
effectors such as HMGCS1 and AURKA, whose genetic
and pharmacological inhibition phenocopied FOSL1 loss.
Conclusions: Our data illustrate the functional and clinical
relevance of FOSL1 in CCA and unveil potential targets amenable
to pharmacological inhibition that could enable the implementation
of novel therapeutic strategies.
Lay summary: Understanding the molecular mechanisms
involved in cholangiocarcinoma (bile duct cancer) development
and progression stands as a critical step for the development of
novel therapies. Through an inter-species approach, this study
provides evidence of the clinical and functional role of the
transcription factor FOSL1 in cholangiocarcinoma. Moreover, we
report that downstream effectors of FOSL1 are susceptible to
pharmacological inhibition, thus providing new opportunities
for therapeutic intervention.A.V. was supported by ADA of the University of Navarra, Spain,
O.E. by FSE; MINECO; FJCI-2017-34233, Spain, R.E. by a donation
from Mauge Burgos de la Iglesia’s family, Spain, and P. Olaizola by
the Basque Government (PRE_2016_1_0269), Basque Country,
Spain. M.J.P. was funded by ISCIII [FIS PI14; 00399, PI17; 00022]
cofinanced by “Fondo Europeo de Desarrollo Regional” (FEDER),
Spain; Spanish Ministry of Economy and Competitiveness
(MINECO: “Ramón y Cajal” Program RYC-2015-17755), Spain.
M.A.A was funded by La Caixa Foundation, HEPACARE project,
Spain, ISCIII FIS PI16/01126 cofinanced by “Fondo Europeo de
Desarrollo Regional” (FEDER), Spain, and “Fundación Científica de
la Asociación Española Contra el Cáncer’’ (AECC Scientific Foundation)
Rare Cancers 2017, Spain. J.M.B. was funded by the
Spanish Carlos III Health Institute (ISCIII) (FIS PI15; 01132, PI18;
01075 and Miguel Servet Program CON14; 00129 and CPII19;
00008), Spain, co-financed by “Fondo Europeo de Desarrollo
Regional” (FEDER), Spain; “Euskadi RIS3” (2019222054) and
BIOEF (Basque Foundation for Innovation and Health Research:
EiTB Maratoia BIO15; CA; 016; BD), Basque Country, Spain;
“Fundación Científica de la Asociación Española Contra el Cáncer”
(AECC Scientific Foundation) Rare Cancers 2017, Spain. S.V. was
supported by FEDER; MINECO (SAF2017-89944-R), Spain, by the
Government of Navarra-Health Research Department (58; 2018),
Navarra, Spain, by La Caixa and Caja Navarra Foundation-CIMA
agreement, Spain. None of the funding sources were involved
in the decision to submit the article for publication. This article is
based upon work from COST Action CA18122 European Cholangiocarcinoma
Network, supported by COST (European Cooperation
in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and
innovation networks (www.cost.eu)
Diatoms in Forensic Analysis
Diatoms are single-celled organisms widely distributed in aquatic environments with several applications, such as oil exploration, environmental indications, microbial ecology or forensic examinations. In this chapter, we address forensic applications of diatom analysis, including the usefulness of the test in the diagnosis of drowning, identification of the drowning site, identification of the suspect and information about the time of death. We also address the sample preparation process and review the most used techniques for diatom analysis involving the digestion of tissues from specific organs to study (acid digestion, acid digestion in disorganization can, Soluene-350 digestion, enzymatic digestion, membrane filter methods and some novel techniques). Finally, we address some protocols in diatom analysis and histological findings in drowning
Individual and combined effects of chemical and mechanical power on postoperative pulmonary complications: a secondary analysis of the REPEAT study
Introduction: Intra-operative supplemental oxygen and mechanical ventilation expose the lungs to potentially injurious energy. This can be quantified as 'chemical power' and 'mechanical power', respectively. In this study, we sought to determine if intra-operative chemical and mechanical power, individually and/or in combination, are associated with postoperative pulmonary complications. Methods: Using an individual patient data analysis of three randomised clinical trials of intra-operative ventilation, we summarised intra-operative chemical and mechanical power using time-weighted averages. We evaluated the association between intra-operative chemical and mechanical power and a collapsed composite of postoperative pulmonary complications using multivariable logistic regression to estimate the odds ratios related to the effect of 1 J.min-1 increase in chemical or mechanical power with adjustment for demographic and intra-operative characteristics. We also included an interaction term to assess for potential synergistic effects of chemical and mechanical power on postoperative pulmonary complications. Results: Of 3837 patients recruited to three individual trials, 2492 with full datasets were included in the analysis. Intra-operative time-weighted average (SD) chemical power was 10.2 (3.9) J.min-1 and mechanical power was 10.5 (4.4) J.min-1. An increase of 1 J.min-1 in chemical power was associated with 8% higher odds of postoperative pulmonary complications (OR 1.08, 95%CI 1.05-1.10, p < 0.001), while the same increase in mechanical power raised odds by 5% (OR 1.05, 95%CI 1.02-1.08, p = 0.003). We did not find evidence of a significant interaction between chemical and mechanical power (p = 0.40), suggestive of an additive rather than synergistic effect on postoperative pulmonary complications. Discussion: Both chemical and mechanical power are independently associated with postoperative pulmonary complications. Further work is required to determine causality
