Publications by authors named "Ana Perez"

Integrating foreign genes into loci, allowing their transcription without affecting endogenous gene expression, is the desirable strategy in genomic engineering. However, these loci, known as genomic safe harbors (GSHs), have been mainly identified by empirical methods. Furthermore, the most prominent available GSHs are localized within regions of high gene density, raising concerns about unstable expression.

View Article and Find Full Text PDF

Background And Aim: Rat hepatitis E virus (ratHEV) is an emerging cause of acute hepatitis worldwide. The limited number of ratHEV cases may be associated with the lack of a proper molecular diagnosis method; thus, the clinical impact and breadth of ratHEV as a cause of acute hepatitis remain uncertain.

Methods: The study was carried out in four phases.

View Article and Find Full Text PDF

Feed supplementation in beehives is a commonly necessary practice in beekeeping today, to address the many risks the honey bees face, mainly the climate change and times of food scarcity, agricultural pesticides, or pathogens such as Varroa destructor or Nosema ceranae. Protein supplements and postbiotics products have been evaluated in beehives feed, obtaining improvements of the strength and sanitary status, but they have not been tested in combination. In this study, two experiences have been carried out in autumn and spring to check the potential beneficial effect of this combination in the beehives.

View Article and Find Full Text PDF

Nuclear Receptors (NRs) comprise a superfamily of proteins with essential roles in cell signaling, survival, proliferation, and metabolism. They act as transcription factors and are subclassified into families based on their ligands, DNA-binding sequences, tissue specificity, and functions. Evidence indicates that in infectious diseases, cancer, and autoimmunity, NRs modulate immune and endocrine responses, altering the transcriptional profile of cells and organs and influencing disease progression.

View Article and Find Full Text PDF

We previously showed that antioxidants induced an impairment of negative feedback of the hypothalamus-pituitary-adrenal (HPA) axis in rats, in parallel to a down-regulation of the glucocorticoid receptor (GR) and nuclear factor erythroid 2-related factor 2 (Nrf2) expression in the pituitary gland. This study evaluated the role of the Nrf2-heme-oxygenase-1 (HO-1) pathway on the impairment of the negative feedback of the HPA axis induced by N-acetylcysteine (NAC). Male Swiss-Webster mice were orally supplemented with NAC for 5 consecutive days.

View Article and Find Full Text PDF

Introduction: Chronic Chagasic Cardiomyopathy (CCC) has an infectious and inflammatory nature. Recent data also suggest an association with altered regulation of glucocorticoid (GC)-mediated circuits failing to control systemic inflammation. However, the involvement of glucocorticoid receptors (GR) and their isoforms have been unexplored.

View Article and Find Full Text PDF

The properties of two hybrid nanoarchaeosomes (hybrid nanoARCs) made of archaeolipids extracted from the halophilic archaea and combining the properties of archaeolipid bilayers with metallic nanoparticles are explored here. BS-nanoARC, consisting of a nanoARC loaded with yerba mate ( extract (YME)-biogenic silver nanoparticles (BSs), and [BS + BS-nanoARC], consistent of a BS-nanoARC core covered by an outer shell of BSs, were structurally characterized and their therapeutic activities screened. By employing 109 ± 5 µg gallic acid equivalents (GAEs) and 73.

View Article and Find Full Text PDF

(1) Background: , a lactic acid-producing bacterium, displays characteristics of both and genera. Clinical evidence suggests its potential health benefits. This study evaluated the safety of AO1167B as a candidate probiotic supplement.

View Article and Find Full Text PDF

Olive () fruit contains high amounts of tocopherols that are responsible, along with secoiridoid phenolic compounds, for most of the antioxidant and anti-inflammatory properties of virgin olive oil. This study focuses on the molecular and biochemical characterization of olive 4-hydroxyphenyl pyruvate dioxygenase (OeHPPD) catalyzing the biosynthesis of homogentisic acid, which constitutes the phenolic residue in the tocopherol molecule. OeHPPD is a cytoplasmic enzyme with a molecular weight of 49.

View Article and Find Full Text PDF
Article Synopsis
  • AO1125 is a Gram-positive bacterium with potential probiotic benefits due to its broad antimicrobial activity and resilience in gut conditions.
  • The study assessed its safety and probiotic capabilities through genome analysis, cytotoxicity tests, and a clinical trial with 99 healthy participants.
  • Results indicate minimal antibiotic resistance and no harmful effects, making AO1125 a promising candidate for supporting gut health and a potential focus for future research.
View Article and Find Full Text PDF

To date, there is no licensed vaccine against the protozoan parasite (, the etiological agent of Chagas Disease. has evolved numerous mechanisms to evade and manipulate the host immune system. Among the subversive strategies employed by the parasite, marked increases in CD11b+ Gr-1+ myeloid-derived suppressor cells (MDSCs) in several organs have been described.

View Article and Find Full Text PDF
Article Synopsis
  • Chagas disease, caused by a parasite, affects about 30% of infected individuals, leading to severe heart complications, and currently has no available vaccine for prevention.
  • This study tested a mucosal vaccine candidate (TS+A) by administering it nasally, which resulted in immune responses and reduced inflammation and parasite levels in infected mice.
  • The TS+A vaccine demonstrated effectiveness not only in the acute phase of the disease but also helped in minimizing chronic heart complications associated with Chagas disease.
View Article and Find Full Text PDF

The phenolic composition of virgin olive oil (VOO) primarily depends on the phenolic content of the olive fruit. The purpose of this work was to characterize the first metabolic step in the synthesis of tyrosol (Ty) and hydroxytyrosol (HTy), whose derivatives are by far the predominant phenolics in both olive fruit and VOO. To this end, two genes encoding tyrosine/DOPA decarboxylase enzymes, and , have been identified and functionally and physiologically characterized.

View Article and Find Full Text PDF

Purpose: Oxysterol-binding protein-like 10 (OSBPL10) gene has been associated with reduced susceptibility to severe dengue in individuals of African descent. The aim of this study was to determine the possible effect of OSBPL10 on dengue virus (DENV) replication as well as the impact of African and European haplotypes of six OSBPL10 small nuclear polymorphisms (SNPs) on dengue multiplication and innate immune response.

Methods: We conducted gene knockdown experiments targeting OSBPL10 in THP-1 and Huh-7D12 cell lines, followed by a DENV-2 replication assay.

View Article and Find Full Text PDF

Background: Familiar cardiopathies are genetic disorders that affect the heart. Cardiologists face a significant problem when treating patients suffering from these disorders: most DNA variations are novel (i.e.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates how various baseline mental disorders may predict the development of Internet Gaming Disorder (IGD) in university students over one to three years, focusing on a group of 2,144 first-year students from six Mexican universities.
  • - Findings show that having any mental disorder at baseline increases the likelihood of developing IGD by 2.33 times, although some individual disorders had diminishing effects when comorbidities were present.
  • - Ultimately, only major depressive disorder and bipolar disorder were significantly linked to new cases of IGD, highlighting the need for further research to clarify the relationships observed in previous studies.
View Article and Find Full Text PDF
Article Synopsis
  • Tracheal intubations in the ICU face challenges like poor glottic view and higher complication rates; this study compares the efficacy of two videolaryngoscope (VL) types: the standard Macintosh blade versus a hyperangulated blade.
  • The INtubation VIdeolaryngoscopy BLADE-ICU trial is a randomized, controlled study conducted across 29 ICUs in Spain, focusing on first-attempt intubation success as the primary outcome, along with other measures like time to intubation and complication rates.
  • The study has ethical approval and aims to improve airway management outcomes, with patient enrollment starting in May 2024 and anticipated results to be published in 2025.
View Article and Find Full Text PDF

Rat hepatitis E virus (ratHEV) is an emerging cause of acute hepatitis of zoonotic origin. Since seroprevalence studies are scarce, at-risk groups are almost unknown. Because blood-borne infections frequently occur in people with drug use, who are particularly vulnerable to infection due to lack of housing and homelessness, this population constitutes a priority in which ratHEV infection should be evaluated.

View Article and Find Full Text PDF
Article Synopsis
  • * A working group has developed new consensus recommendations for CMV management in SOT recipients, integrating recent advancements in cell-mediated immunity monitoring.
  • * These recommendations were rated for their evidence strength and quality using the GRADE system and were formally endorsed by a consensus meeting of experts.
View Article and Find Full Text PDF

Nowadays, there is a challenge in searching for more sustainable alternatives to decrease the environmental impact of composite materials. In this work, we fabricate new composites based on a biobased-content epoxy system, lignin, and flax fiber; considering these materials could be promising due to their high renewable content of around 40%. In addition, another key requirement for composites, besides being sustainable, is that they present improved properties such as UV resistance.

View Article and Find Full Text PDF

The first therapeutical goal followed by neurooncological surgeons dealing with prefrontal gliomas is attempting supramarginal tumor resection preserving relevant neurological function. Therefore, advanced knowledge of the frontal aslant tract (FAT) functional neuroanatomy in high-order cognitive domains beyond language and speech processing would help refine neurosurgeries, predicting possible relevant cognitive adverse events and maximizing the surgical efficacy. To this aim we performed the recently developed correlational tractography analyses to evaluate the possible relationship between FAT's microstructural properties and cognitive functions in 27 healthy subjects having ultra-high-field (7-Tesla) diffusion MRI.

View Article and Find Full Text PDF

(formerly ) is a methylotrophic yeast widely used in laboratories around the world to produce recombinant proteins. Given its advantageous features, it has also gained much interest in the context of modern biotechnology. In this review, we present the utilization of as a platform to produce several products of economic interest such as biopharmaceuticals, renewable chemicals, fuels, biomaterials, and food/feed products.

View Article and Find Full Text PDF
Article Synopsis
  • Two out of eleven children diagnosed with acute hepatitis of unknown origin tested positive for rat hepatitis E virus.
  • This finding suggests that rat hepatitis E virus should be included in the possible causes when doctors are evaluating children with unexplained hepatitis.
  • The study highlights the importance of considering lesser-known viruses in the diagnosis of unexplained pediatric liver inflammation.
View Article and Find Full Text PDF

Background: Acute kidney injury (AKI) is a significant postoperative complication associated with increased mortality and hospital costs. Hemodynamic strategies, such as goal-directed therapy, might reduce AKI risk. Predicting and proactively managing intraoperative hypotension may be helpful.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionopn0i2gfttf771oo9dkv923d23kr4cjj): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once