15 results match your criteria: "and Advanced Center for Chronic Diseases ACCDIS[Affiliation]"

SLC7A11 Expression Is Up-Regulated in HPV- and Tobacco-Associated Lung Cancer.

Int J Mol Sci

December 2024

Laboratorio de Oncovirología, Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad de Tarapacá, Arica 1000000, Chile.

High-risk human papillomaviruses (HR-HPVs) are the etiological agents of cervical, anogenital, and a subset of oropharyngeal cancers. In addition, HR-HPVs have been detected in lung carcinomas worldwide, even though the role of these viruses in this type of cancer is not fully understood. This study evaluated the presence of HPV in a cohort of 204 lung cancer cases by multiplex polymerase chain reaction (PCR)-Luminex.

View Article and Find Full Text PDF

Background: Limited studies have assessed the effects of psychosocial risk factors on achievement of ideal cardiovascular health .

Methods: Using the Heart Strategies Concentrating on Risk Evaluation (HeartSCORE) cohort, we examined the cross-sectional associations of cumulative social risk (CSR) and three psychosocial factors (depression, stress, perceived discrimination) with . CSR was calculated by assigning one point for each of: low family income, low education level, minority race (Black), and single-living status.

View Article and Find Full Text PDF

Co-occurrence Interaction Networks of Extremophile Species Living in a Copper Mining Tailing.

Front Microbiol

January 2022

Laboratorio de Bioingeniería, Instituto de Ciencias de la Ingeniería, Universidad de O'Higgins, Rancagua, Chile.

Copper mining tailings are characterized by high concentrations of heavy metals and an acidic pH, conditions that require an extreme adaptation for any organism. Currently, several bacterial species have been isolated and characterized from mining environments; however, very little is known about the structure of microbial communities and how their members interact with each other under the extreme conditions where they live. This work generates a co-occurrence network, representing the bacterial soil community from the Cauquenes copper tailing, which is the largest copper waste deposit worldwide.

View Article and Find Full Text PDF

Adsorption of bovine serum albumin on gold nanoprisms: interaction and effect of NIR irradiation on protein corona.

J Mater Chem B

September 2020

Advanced Center for Chronic Diseases (ACCDiS), Santos Dumont 964, Independencia, Santiago, Chile and Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile.

Because of their photothermal properties, gold nanoparticles (AuNPs) have gained attention regarding their use in drug delivery and therapeutic applications. In this sense, it is interesting to consider their interactions with biologically available proteins, such as serum albumin, as well as the effects of irradiation and photothermal conversion on the protein structure that can lead to a loss of function or generate an immune response. Gold nanoprisms (AuNPrs) have gained interest due to their low toxicity, ease of synthesis, and excellent stability, promoting their use in bioapplications such as surface-enhanced Raman spectroscopy (SERS), drug delivery, and photothermal therapy.

View Article and Find Full Text PDF

Syndecan-4/PAR-3 signaling regulates focal adhesion dynamics in mesenchymal cells.

Cell Commun Signal

August 2020

Cellular Communication Laboratory, Program of Cellular & Molecular Biology, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Av. Independencia 1027, Independencia, 838-0453, Santiago, Chile.

Background: Syndecans regulate cell migration thus having key roles in scarring and wound healing processes. Our previous results have shown that Thy-1/CD90 can engage both αvβ3 integrin and Syndecan-4 expressed on the surface of astrocytes to induce cell migration. Despite a well-described role of Syndecan-4 during cell movement, information is scarce regarding specific Syndecan-4 partners involved in Thy-1/CD90-stimulated cell migration.

View Article and Find Full Text PDF

Alzheimer's disease (AD) is the most prevalent type of dementia. Down syndrome (DS) is the leading genetic risk factor for Early-Onset AD, prematurely presenting the classic pathological features of the brain with AD. Augmented gene dosage, including the gene, could partially cause this predisposition.

View Article and Find Full Text PDF

Background: Cardiovascular prognostic models guide treatment allocation and support clinical decisions. Whether there are valid models for Latin American and Caribbean (LAC) populations is unknown.

Objective: This study sought to identify and critically appraise cardiovascular prognostic models developed, tested, or recalibrated in LAC populations.

View Article and Find Full Text PDF

Background: Ideal cardiovascular health (CVH) was proposed by the American Heart Association to promote population health. We aimed to characterize the association between ideal CVH and markers of subclinical cardiovascular disease (CVD).

Hypothesis: We hypothesized that ideal CVH is associated with several markers of subclinical CVD.

View Article and Find Full Text PDF

The Netrin-4/Laminin γ1/Neogenin-1 complex mediates migration in SK-N-SH neuroblastoma cells.

Cell Adh Migr

December 2019

a Faculty of Sciences , Laboratory of Stem Cells and Developmental Biology, Universidad de Chile , Santiago , Chile.

Neuroblastoma (NB) is the most common pediatric extracranial solid tumor. It arises during development of the sympathetic nervous system. Netrin-4 (NTN4), a laminin-related protein, has been proposed as a key factor to target NB metastasis, although there is controversy about its function.

View Article and Find Full Text PDF

Background: Determination of the correlation of ideal cardiovascular health variables among spousal or cohabitating partners may guide the development of couple-based interventions to reduce cardiovascular disease risk.

Method And Results: We used data from the HeartSCORE (Heart Strategies Concentrating on Risk Evaluation) study. Ideal cardiovascular health, defined by the American Heart Association, comprises nonsmoking, body mass index <25 kg/m, physical activity at goal, diet consistent with guidelines, untreated total cholesterol <200 mg/dL, untreated blood pressure <120/80 mm Hg, and untreated fasting glucose <100 mg/dL.

View Article and Find Full Text PDF

The Netrin-4/ Neogenin-1 axis promotes neuroblastoma cell survival and migration.

Oncotarget

February 2017

Laboratory of Stem Cells and Developmental Biology, Faculty of Sciences, Universidad de Chile, Santiago, Chile.

Neogenin-1 (NEO1) is a transmembrane receptor involved in axonal guidance, angiogenesis, neuronal cell migration and cell death, during both embryonic development and adult homeostasis. It has been described as a dependence receptor, because it promotes cell death in the absence of its ligands (Netrin and Repulsive Guidance Molecule (RGM) families) and cell survival when they are present. Although NEO1 and its ligands are involved in tumor progression, their precise role in tumor cell survival and migration remain unclear.

View Article and Find Full Text PDF

In this review, we discuss the observations that, following chronic high-fat diet (HFD) exposure, male mice have higher levels of saturated fatty acids (FAs) and total sphingolipids, whereas lower amounts of polyunsaturated FAs in the central nervous system (CNS) than females. Furthermore, males, when compared with female mice, have higher levels of inflammatory markers in the hypothalamus following exposure to HFD. The increase in markers of inflammation in male mice is possibly due to the reductions in proliferator-activated receptor gamma coactivator 1 alpha (PGC-1α) and estrogen receptor alpha (ERα), which is not recapitulated in female mice.

View Article and Find Full Text PDF

MUC1/SEC and MUC1/Y overexpression is associated with inflammation in Sjögren's syndrome.

Oral Dis

September 2015

Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile.

Objectives: To evaluate the expression and localization of MUC1/SEC and MUC1/Y isoforms in labial salivary glands (LSG) from Sjögren's syndrome patients (SS patients), as well as their in vitro expression induced by cytokines.

Subjects And Methods: Labial salivary gland from 27 primary SS patients and 22 non-SS sicca subjects were studied. Relative MUC1/SEC and MUC1/Y mRNA levels were determined by qPCR and protein levels by Western blotting.

View Article and Find Full Text PDF

Rapid reduction in breast cancer mortality with inorganic arsenic in drinking water.

EBioMedicine

November 2014

Arsenic Research Group, School of Public Health, University of California, Berkeley, Berkeley, CA (Prof AH Smith MD, Y Yuan MPH, Assoc Prof C Steinmaus MD, J Liaw MPH); Departamento de Estadística, Facultad de Matemáticas, Pontificia Universidad Catòlica de Chile, Santiago, Chile (Prof G Marshall PhD); Environmental Health Sciences, School of Public Health, University of California, Berkeley, Berkeley, CA (Prof MT Smith PhD); Breast Cancer Oncology Program, Stanford Cancer Institute, Stanford, CA (L Wood, M Heirich, RM Fritzemeier MS, Prof MD Pegram MD); Departamento de Salud Pública, Escuela de Medicina, Pontificia Universidad Catòlica de Chile, and Advanced Center for Chronic Diseases ACCDIS, Santiago, Chile (Prof C Ferreccio MD).

Article Synopsis
  • Arsenic trioxide has been shown to effectively induce cell death in breast cancer cells and was previously used to treat promyelocytic leukemia.
  • During the period from 1958 to 1970, women in northern Chile (Region II) experienced significantly lower breast cancer mortality rates compared to a region with lower arsenic levels.
  • These findings suggest a potential link between high arsenic exposure and reduced breast cancer mortality, warranting further investigation into the use of inorganic arsenic in advanced breast cancer treatment.
View Article and Find Full Text PDF

We show that chronic high fat diet (HFD) feeding affects the hypothalamus of male but not female mice. In our study we demonstrate that palmitic acid and sphingolipids accumulate in the central nervous system of HFD-fed males. Additionally, we show that HFD-feeding reduces proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) thus reducing estrogen receptor α (ERα) and driving hypothalamic inflammation in male but not female mice.

View Article and Find Full Text PDF