Publications by authors named "Teran A"

Background: Precision nutrition is based on the integration of individual's phenotypical and biological characteristics including genetic variants, epigenetic marks, gut microbiota profiles, and metabolite fingerprints as well as medical history, lifestyle practices, and environmental and cultural factors. Thus, nutriomics areas including nutrigenomics, nutrigenetics, nutriepigenetics, nutrimetabolomics, and nutrimetagenomics have emerged to comprehensively understand the complex interactions between nutrients, diet, and the human body's molecular processes through precision nutrition.

Summary: This document from the Ibero-American Network of Nutriomics and Precision Nutrition (RINN22; View Article and Find Full Text PDF

The charge of paddlewheel diruthenium complexes has a major role in defining their interaction with proteins: negatively charged complexes bind proteins non-covalently, while cationic complexes form adducts where the Ru core binds to Asp side chains at the equatorial sites, or to the main chain carbonyl groups or the side chains of His, Arg or Lys residues at the axial sites. Here we study the interactions of the neutral compound [Ru(D-p-FPhF)(OCCH)(OCO)]·3HO (D-p-FPhF = N,N'-bis(4-fluorophenyl)formamidinate), a very rare example of a paddlewheel diruthenium compound with three different equatorial ligands, with the model protein bovine pancreatic ribonuclease (RNase A) by means of UV-visible absorption spectroscopy, circular dichroism (CD), electrospray ionization mass spectrometry (ESI-MS) and X-ray crystallography. It is the first attempt to investigate the binding of a neutral diruthenium compound to a protein.

View Article and Find Full Text PDF

There is a growing interest in the search for metal-based therapeutics for protein misfolding disorders such as Alzheimer's disease (AD). A novel and largely unexplored class of metallodrugs is constituted by paddlewheel diruthenium complexes, which exhibit unusual water solubility and stability and unique coordination modes to proteins. Here, we investigate the ability of the complexes [RuCl(DPhF)(OCCH)]·HO (), [RuCl(DPhF)(OCCH)]·HO (), and K[Ru(DPhF)(CO)]·3HO () (DPhF = ,'-diphenylformamidinate) to interfere with the amyloid aggregation of the Aβ peptide.

View Article and Find Full Text PDF

Background: Lumen-apposing metal stents (LAMS) have displaced double-pigtail plastic stents (DPS) as the standard treatment for walled-off necrosis (WON),β but evidence for exclusively using LAMS is limited. We aimed to assess whether the theoretical benefit of LAMS was superior to DPS.

Methods: This multicenter, open-label, randomized trial was carried out in 9 tertiary hospitals.

View Article and Find Full Text PDF

Background: Isolated perforations of hollow viscus (HV) represent less than 1% of injuries in blunt abdominal trauma (BAT). When they do present, they are generally due to high-impact mechanisms in the segments of the intestine that are fixed. The aim of this study is to determine the incidence of major HV injuries in BAT at the "Dr.

View Article and Find Full Text PDF

The physical and chemical properties of paddlewheel diruthenium compounds are highly dependent on the nature of the ligands surrounding the bimetallic core. Herein, we compare the ability of two diruthenium compounds, [RuCl(D--FPhF)(OCCH)]·HO () (D--FPhF = -bis(4-fluorophenyl)formamidinate) and K[Ru(OCO)]·3HO (), to act as inhibitors of amyloid aggregation of the Aβ peptide and its peculiar fragments, Aβ and Aβ. A wide range of biophysical techniques has been used to determine the inhibition capacity against aggregation and the possible mechanism of action of these compounds (Thioflavin T fluorescence and autofluorescence assays, UV-vis absorption spectroscopy, circular dichroism, nuclear magnetic resonance, mass spectrometry, and electron scanning microscopy).

View Article and Find Full Text PDF

Peroral endoscopic myotomy (POEM) is a minimally invasive endoscopic technique for the treatment of achalasia and its use has been widely spread in recent years. The Triangle Tip-Jet (TTJ) (Olympus Triangle TipKnife-J, KD645L) has become very popular in this field and currently one of the most used knives for POEM procedures. It has the capability of knife dissection along with submucosal injection and its triangle tip shape is especially useful for pulling tissue during the myotomy phase.

View Article and Find Full Text PDF

Background And Aim: This study aimed to determine safety and risk factors for adverse events (AEs) of endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) with long-term indwell of lumen-apposing metal stents (LAMS).

Methods: This study is a multicenter prospective observational study on consecutive high surgical-risk patients requiring gallbladder drainage who underwent EUS-GBD with LAMS over 12 months. Centralized telephone follow-up interviews were conducted every 3 months for 1 year.

View Article and Find Full Text PDF

The morphogenetic process of apical constriction, which relies on non-muscle myosin II (NMII) generated constriction of apical domains of epithelial cells, is key to the development of complex cellular patterns. Apical constriction occurs in almost all multicellular organisms, but one of the most well-characterized systems is the Folded-gastrulation (Fog)-induced apical constriction that occurs in Drosophila. The binding of Fog to its cognizant receptors Mist/Smog results in a signaling cascade that leads to the activation of NMII-generated contractility.

View Article and Find Full Text PDF

Paddlewheel diruthenium complexes are being used as metal-based drugs. It has been proposed that their charge and steric properties determine their selectivity towards proteins. Here, we explore these parameters using the first water-soluble diruthenium complex bearing two formamidinate ligands, [RuCl(DPhF)(OCCH)], and two derivatives, [RuCl(DPhF)(OCCH)] and K[Ru(DPhF)(CO)] (DPhF = N,N'-diphenylformamidinate), with one formamidinate.

View Article and Find Full Text PDF

Interventions that address adolescent conduct problems are essential for decreasing negative risk behaviors and promoting positive protective factors among youth. Although interventions have been developed and tested in the United States, preventive evidence-based interventions (EBIs) are less available in Latin American countries such as Ecuador. Therefore, the purpose of this study was to evaluate the efficacy of an evidence-based, parent-centered intervention, Familias Unidas, in preventing/reducing conduct problems, across time, among youth in Guayaquil, Ecuador.

View Article and Find Full Text PDF

Introduction: Infantile fibrosarcoma is a rare non-rhabdomyosarcomatous soft tissue tumor (0.0005%) of which only 10% occur in the abdomen where they rarely affect the gastrointestinal tract. The median age at diagnosis is 3 months although 40% of them are present at birth.

View Article and Find Full Text PDF

Background: Removing lumen-apposing metal stents (LAMSs) may be difficult and even harmful, but these features have seldom been analyzed. We aimed to generate a comprehensive assessment of the feasibility and safety of LAMS retrieval procedures.

Methods: A prospective multicenter case series including all technically successfully deployed LAMSs between January 2019 and January 2020 that underwent endoscopic stent removal.

View Article and Find Full Text PDF

Introduction And Aims: The outcomes of endoscopic submucosal dissection (ESD) in the esophagus have not been assessed in our country. Our primary aim was to analyze the effectiveness and safety of the technique.

Material And Methods: Analysis of the prospectively maintained national registry of ESD.

View Article and Find Full Text PDF

The paddlewheel [RuCl(OCCH)] complex was previously reported to react with the model protein hen egg white lysozyme (HEWL), forming adducts with two diruthenium moieties bound to Asp101 and Asp119 side chains upon the release of one acetate. To study the effect of the equatorial ligands on the reactivity with proteins of diruthenium compounds, X-ray structures of the adducts formed when HEWL reacts with [RuCl(D--FPhF)(OCCH)] [D--FPhF = ,'-bis(4-fluorophenyl)formamidinate] under different conditions were solved. [RuCl(D--FPhF)(OCCH)] is bonded through their equatorial positions to the Asp side chains.

View Article and Find Full Text PDF

Brassinosteroids are plant hormones whose main function is to stimulate plant growth. However, they have been studied for their biological applications in humans. Brassinosteroid compounds have displayed an important role in the study of cancer pathology and show potential for developing novel anticancer drugs.

View Article and Find Full Text PDF
Article Synopsis
  • - This study analyzes medical students' views on patient privacy during clinical rotations, focusing on how various factors like age, sex, and parents' education relate to these perceptions.
  • - A survey of 129 Spanish medical students revealed that only 31% had signed confidentiality agreements, and many reported infrequent introductions by doctors in patient rooms.
  • - Nearly 50% of students admitted they would photograph a patient's report without consent, highlighting a concerning lack of understanding about privacy rights among them, especially among younger students and those with less educated parents.
View Article and Find Full Text PDF

The complete series of [RuCl(D-FPhF)(OCCH)] ( = 1-4; D-FPhF = ,'-bis(4-fluorophenyl)formamidinate) compounds, has been prepared and characterized by a multi-technique approach, including single crystal X-ray diffraction. A careful study of the different methodologies has allowed us to prepare four compounds with good yields and without an inert atmosphere or further purification. Specifically, [RuCl(D-FPhF)(OCCH)] (1) was obtained using an ultrasound-assisted (USS) method, while [RuCl(D-FPhF)] (4) was prepared by microwave assisted solvothermal synthesis (MWS).

View Article and Find Full Text PDF

Symptomatic ordinary esophageal lipomas are rare tumors. Spindle cell lipomas (SCLs) of this location are even more infrequent. To our knowledge, only a previous esophageal SCL case has been reported.

View Article and Find Full Text PDF

. To investigate the potential of using a single quadrupole magnet with a high magnetic field gradient to create planar minibeams suitable for clinical applications of proton minibeam radiation therapy..

View Article and Find Full Text PDF

The elusive monosubstituted diruthenium complexes [RuCl(DAniF)(OCMe)] (1), [RuCl(DPhF)(OCMe)] (2), [RuCl(D-p-CNPhF)(OCMe)] (3), [RuCl(D-o-TolF)(OCMe)] (4), [RuCl(D-m-TolF)(OCMe)] (5), [RuCl(D-p-TolF)(OCMe)] (6) and [RuCl(p-TolA)(OCMe)] (7) have been synthesized using for the first time ultrasound-assisted synthesis to carry out a substitution reaction in metal-metal bonded dinuclear compounds (DAniF = N,N'-bis(4-anisyl)formamidinate; DPhF = N,N'-diphenylformamidinate; D-p-CNPhF = N,N'-bis(4-cyanophenyl)formamidinate; D-o/m/p-TolF = N,N'-bis(2/3/4-tolyl)formamidinate; p-TolA = N-4-tolylamidate). This is a simpler and greener method than the tedious procedures described in the literature, and it has permitted to obtain water-soluble complexes with good yields in a short period of time. A synthetic study has been implemented to find the best experimental conditions to prepare compounds 1-7.

View Article and Find Full Text PDF