9 results match your criteria: "Talca University[Affiliation]"

Following the 1st Conference of the Global Collaboration on Traumatic Stress, the consortium committed to systematically integrating sex and gender considerations in their endeavours, which aligns with the 's Gender Policy. This initiative is vital for understanding trauma's complex impacts, but also presents significant challenges in cross-cultural research. This letter, co-authored by researchers from across the globe, outlines these challenges and proposes mitigation strategies.

View Article and Find Full Text PDF

Ochratoxins (OTs) are mycotoxins frequently found in wines, and their contamination can occur during any stage of the winemaking process. Ochratoxin A (OTA) has been the most widely reported and the only one whose concentrations are legislated in this beverage. However, ochratoxin B, ochratoxin A methyl ester, ochratoxin B methyl ester, ochratoxin A ethyl ester, ochratoxin B ethyl ester, ochratoxin α, ochratoxin β, OTα methyl ester, OTA ethyl amide, and OTA glucose ester have also been reported in wines.

View Article and Find Full Text PDF

This paper analyzes the Inter-American Court of Human Rights' ruling in the case of . Poblete Vilches, a senior citizen, died in February 2001 due to septic shock and bilateral bronchopneumonia after being treated in a public hospital in Chile. The ruling held the state of Chile responsible for a number of human rights violations.

View Article and Find Full Text PDF

Aim And Objective: According to our interest in developing new methods for the construction of intricate molecules, a reliable polymer-supported (-)-8-phenylmenthyl chiral auxiliary for the addition of different nucleophiles to chiral-supported N-acyliminium precursors were developed.

Materials And Methods: Merrifield resin was employed to anchor (-)-8-phenylmenthol, which was prepared by nitration of (-)-8-phenylmenthyl chloroacetate followed by reduction of nitro group and subsequent Merrifield resin coupling. Treatment of a suspension of polymer-supported chloroformate and piperidinone in the presence of Et3N resulted in attachment of the substrate onto the solid-support.

View Article and Find Full Text PDF

On-bead MALDI-MS monitoring of solid-supported N-acyliminium ion reactions.

J Mass Spectrom

April 2017

Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Talca University, P.O. Box 747, Talca, Chile.

View Article and Find Full Text PDF

Investigation of Lysine-Functionalized Dendrimers as Dichlorvos Detoxification Agents.

Biomacromolecules

November 2015

Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources; Nanobiotechnology Division at University of Talca, Fraunhofer Chile Research Foundation - Center for Systems Biotechnology, FCR-CSB, Talca University, P.O. Box 747, Talca, Chile.

Article Synopsis
  • Lysine-containing polymers are versatile due to their ability to bind biologically relevant molecules, and this report details the synthesis of polyester dendrimers with lysine groups.
  • The study investigates their stability over time and different pH levels, their toxicity to various cell lines, and their potential as nano-detoxification agents for organophosphate compounds.
  • The dendrimers, designed with 4, 8, and 16 lysine groups, show promise for applications in drug delivery, gene delivery, and removing organic toxins, notably demonstrating effectiveness in capturing the pesticide dichlorvos.
View Article and Find Full Text PDF

Background: The Connor-Davidson Resilience Scale (CD-RISC) is inarguably one of the best-known instruments in the field of resilience assessment. However, the criteria for the psychometric quality of the instrument were based only on classical test theory.

Method: The aim of this paper has focused on the calibration of the CD-RISC with a nonclinical sample of 444 adults using the Rasch-Andrich Rating Scale Model, in order to clarify its structure and analyze its psychometric properties at the level of item.

View Article and Find Full Text PDF

In Vivo Nanodetoxication for Acute Uranium Exposure.

Molecules

June 2015

Laboratory of Asymmetric Synthesis, Institute of Chemistry and Natural Resources, University of Talca, P.O. Box 747, Talca 3460000, Maule, Chile.

Accidental exposure to uranium is a matter of concern, as U(VI) is nephrotoxic in both human and animal models, and its toxicity is associated to chemical toxicity instead of radioactivity. We synthesized different PAMAM G4 and G5 derivatives in order to prove their interaction with uranium and their effect on the viability of red blood cells in vitro. Furthermore, we prove the effectiveness of the selected dendrimers in an animal model of acute uranium intoxication.

View Article and Find Full Text PDF

In situ and in silico evaluation of amine- and folate-terminated dendrimers as nanocarriers of anesthetics.

Eur J Med Chem

February 2014

Laboratory of Asymmetric Synthesis, Chemistry Institute of Natural Resources, Nanobiotechnology Division at University of Talca, Fraunhofer Chile Research Foundation - Center for Systems Biotechnology, FCR-CSB, Talca University, Talca, P.O. Box 747, Chile. Electronic address:

The search for new nano-systems for targeted biomedical applications and controlled drug release has attracted significant attention in polymer chemistry, pharmaceutics, and biomaterial science. Controlled drug delivery has many advantages over conventional drug administration, such as reduction of side effects, maintaining a stable plasma level concentration and improving the quality of life of patients. In this study, PAMAM G5 dendrimers and PAMAM G5-folic acid conjugates (PAMAM G5-FA) are synthesized and characterized by mass spectrometry (MALDI-MS).

View Article and Find Full Text PDF