Publications by authors named "Juan Sandoval"

Background: Covered stent correction for a sinus venosus atrial septal defect (SVASD) was first performed in 2009. This innovative approach was initially viewed as experimental and was reserved for highly selected patients with unusual anatomic variants. In 2016, increasing numbers of procedures began to be performed, and in several centers, it is now offered as a standard of care option alongside surgical repair.

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Stem cell therapy in dogs has increased considerably in recent years; however, there are few publications on the treatment of perianal fistulas (PF) in this species. The aim of this open-label clinical trial was to demonstrate the efficacy and safety of a new protocol for the in situ administration of low-dose adipose-derived allogeneic stem cells (ASCs) for the treatment of refractory spontaneous perianal fistula. The methodology consisted of applying one to three doses of 5 × 10 cryopreserved allogeneic ASCs to each fistula.

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Article Synopsis
  • High-grade serous ovarian cancer (HGSOC) is the most lethal type of gynecologic cancer, associated with limited treatment options and a poor prognosis.
  • The study identified 20 dysregulated microRNAs (miRNAs) in HGSOC patients, with miR-145-3p being notably downregulated and linked to cancer progression.
  • Restoring miR-145-3p may provide a therapeutic target, as it influences cell mobility and proliferation by affecting the cell cycle regulation pathways.
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  • * Surplus bread crusts can effectively act as a structure for SSF, and when combined with perennial ryegrass, they enhance each other’s nutritional profiles.
  • * The study using Rhizopus oligosporus showed significant reductions in starch and increases in amino acids, suggesting that this method can turn underutilized bread crusts and ryegrass into valuable sources of alternative protein.
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The treatment of non-small cell lung cancer (NSCLC) patients has significantly improved with recent therapeutic strategies; however, many patients still do not benefit from them. As a result, new treatment approaches are urgently needed. In this study, we evaluated the antitumor efficacy of co-targeting G9a and DNMT1 enzymes and its potential as a cancer drug sensitizer.

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Opioid use disorder (OUD) is a multifaceted condition influenced by sex, genetic and environmental factors that could be linked with epigenetic changes. Understanding how these factors interact is crucial to understand and address the development and progression of this disorder. Our aim was to elucidate different potential epigenetic and genetic mechanisms between women and men that correlate with OUD under real-world pain unit conditions.

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Background: Several studies have suggested secreted frizzled-related protein 2 (SFRP2) gene as a potential clinical biomarker in colorectal cancer (CRC). However, its diagnostic role remains unclear. In this study, we aimed to investigate the significance of SFRP2 methylation levels in a large cohort of biological specimens (including blood, adipose and colonic tissues) from patients with CRC, thereby potentially identifying new biomarker utility.

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  • Epigenetics may play a significant role in neurodegenerative diseases, but there is a lack of research on early-onset dementia and the use of Lymphoblastoid cell lines (LCLs).
  • A study analyzed DNA methylation in samples from Alzheimer's disease and frontotemporal dementia patients, revealing frequent hypermethylation and altered biological pathways related to neuron development and immune responses.
  • The findings suggest that LCLs could serve as a useful model for studying neurodegeneration in its early stages, with a noted difference in gene expression correlation between brain tissues and LCLs.
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Metal(loid) salts were used to treat infectious diseases in the past due to their exceptional biocidal properties at low concentrations. However, the mechanism of their toxicity has yet to be fully elucidated. The production of reactive oxygen species (ROS) has been linked to the toxicity of soft metal(loid)s such as Ag(I), Au(III), As(III), Cd(II), Hg(II), and Te(IV).

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Introduction: Time-fixed analyses have traditionally been utilized to examine outcomes in post-infarction ventricular septal defect (VSD). The aims of this study were to: (1) analyze the relationship between VSD closure/non-closure and mortality; (2) assess the presence of immortal-time bias.

Material And Methods: In this retrospective cohort study, patients with ST-elevation myocardial infarction (STEMI) complicated by VSD.

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Density functional theory (DFT) and time-dependent DFT (TD-DFT) are pivotal approaches for modeling electronically excited states of molecules. However, choosing a DFT exchange-correlation functional (XCF) among the myriad of alternatives is an overwhelming task that can affect the interpretation of results and lead to erroneous conclusions. The performance of these XCFs to describe the excited-state properties is often addressed by comparing them with high-level wave function methods or experimentally available vertical excitation energies; however, this is a limited analysis that relies on evaluation of a single point in the excited-state potential energy surface (PES).

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Bodipy is one of the most versatile and studied functional dyes due to its myriad applications and tunable spectral properties. One of the strategies to adjust their properties is the formation of Bodipy dimers and oligomers whose properties differ significantly from the corresponding monomer. Recently, we have developed a novel strategy for synthesizing α,α-ethylene-bridged Bodipy dimers; however, their excited-state dynamics was heretofore unknown.

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Covered stent correction of a superior sinus venosus atrial septal defect is increasingly performed as an alternative to surgical repair. While sinus node dysfunction requiring pacemaker implantation may be required after surgical repair, this has not been previously reported after covered stent implantation. We reviewed the experience in two interventional centers.

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Endothelial progenitor cells and circulating endothelial cells have been proposed as useful markers of severity and disease progression in certain vascular diseases, including pulmonary arterial hypertension. Our study focused on evaluating the levels of circulating endothelial progenitor cells and circulating endothelial cells in patients with congenital left-to-right shunts and pulmonary hypertension undergoing definitive repair. Endothelial progenitor cells (identified by simultaneous co-expression of CD45dim, CD34 + and KDR2 + surface antibodies) and circulating endothelial cells (identified by simultaneous co-expression of inherent antibodies CD45-, CD31+, CD146 + and CD105+) were prospectively measured in seventy-four children (including children with Down syndrome), median age six years (2.

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This article analyzes the role of Chileans' emotions as predictors of normative and non-normative political action in the context of the post-social outbreak and the constituent process. We carried out three descriptive studies: first, a study conducted 1 year after the social outburst ( = 607), a second one carried out before the constitutional referendum ( = 320), and a third study conducted after the constitutional referendum ( = 210). The results indicated that participants present a higher disposition to normative over non-normative political action, although both lose strength as the studies temporally move away from the social outburst.

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Patients with pulmonary hypertension associated with congenital heart disease make up an increasing proportion of the total pulmonary hypertension population who bring with them added complexity because of underlying anatomical and hemodynamic abnormalities. Currently, no consensus recommendations are available on how to best manage this group of patients for either the primary cardiologist or pulmonary hypertension subspecialist, including timing of referral. The purposes of this document are (1) to describe the various pulmonary hypertension groups and subgroups associated with congenital heart disease, (2) to describe imaging modalities used in patient evaluation, (3) to elucidate medical and surgical management considerations, (4) to highlight disparities within this population, and (5) to identify gaps and future research needs of patients with pulmonary hypertension associated with congenital heart disease.

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Robotics have advanced significantly over the years, and human-robot interaction (HRI) is now playing an important role in delivering the best user experience, cutting down on laborious tasks, and raising public acceptance of robots. New HRI approaches are necessary to promote the evolution of robots, with a more natural and flexible interaction manner clearly the most crucial. As a newly emerging approach to HRI, multimodal HRI is a method for individuals to communicate with a robot using various modalities, including voice, image, text, eye movement, and touch, as well as bio-signals like EEG and ECG.

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Analgesic-response variability in chronic noncancer pain (CNCP) has been reported due to several biological and environmental factors. This study was undertaken to explore sex differences linked to and DNA methylation changes and genetic variants in analgesic response. A retrospective study with 250 real-world CNCP outpatients was performed in which data from demographic, clinical, and pharmacological variables were collected.

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Objective: Proliferative verrucous leukoplakia (PVL) has high rates of malignant transformation into oral squamous cell carcinoma (OSCC), but the clinical and evolutionary pattern of OSCC from PVL (PVL-OSCC) is more favorable than that of OSCC not preceded by PVL (OSCC). Here, we aimed to explore the pathophysiologic differences between PVL-OSCC and OSCC through transcriptomic and DNA methylation analyses.

Materials And Methods: In this case-control study, oral biopsies from 8 PVL-OSCC and 10 OSCC patients were obtained for global sequencing using RNAseq and a genome-wide DNA methylation analysis via the Infinium EPIC Platform (graphical abstract).

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The gene has a key role during cardiogenesis, and it has been related to epigenetic mechanisms in congenital heart disease (CHD). The purpose of this study was to assess the association between DNA methylation status and congenital septal defects. The DNA methylation of seven CpG sites in the gene promoter was analyzed through pyrosequencing as a quantitative method in 48 patients with congenital septal defects and 104 individuals with patent ductus arteriosus (PDA).

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Prosthetic paravalvular leaks (PVLs) are associated with congestive heart failure and hemolysis. Surgical PVL closure carries high risks. Transcatheter implantation of occluding devices in PVL is a lower risk but challenging procedure.

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Article Synopsis
  • Replicating animal movements with robots allows researchers to manipulate key parameters and study complex biological systems effectively.
  • The research focused on creating a snake robot that mimics the natural swimming movements of snakes, moving away from traditional rigid designs.
  • By analyzing real snake anatomy and swimming patterns, the team developed a prototype that mimics the fluid lateral undulations of snakes, paving the way for more advanced autonomous snake robots.
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Purpose: To evaluate the clinical and surgical outcomes among children with bicuspid aortic valve who underwent cardiac surgery.

Methods: This observational and retrospective study included patients with a diagnosis of bicuspid aortic valve who underwent cardiac surgery between January 1, 2003, and March 31, 2020. Demographic characteristics and perioperative conditions were described.

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Herein we report the use of an environmental multimetal(loid)-resistant strain, MF05, to biosynthesize single- or multi-element nanostructures under anaerobic conditions. Inorganic nanostructure synthesis typically requires methodologies and conditions that are harsh and environmentally hazardous. Thus, green/eco-friendly procedures are desirable, where the use of microorganisms and their extracts as bionanofactories is a reliable strategy.

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