Publications by authors named "Marcela Ortega"

Background: Much research has explored how raising a child with a neurodevelopmental disability influences parents' well-being. However, little research has focused on the unique experiences of parenting multiple children with neurodevelopmental disabilities. We explored the unique experiences of parenting multiple children with neurodevelopmental disabilities with a focus on mothers' well-being and social participation.

View Article and Find Full Text PDF

Breast cancer (BC) is one of the most common diseases in the global population. It most commonly presents in women; however, there has been an increase in the number of men diagnosed with the disease, although at a lower rate. Its specific characteristics and associated risk factors mean that preventative measures are considered to be one of the most important methods of avoiding BC.

View Article and Find Full Text PDF

Gossypol is a natural disesquiterpene that blocks the activity of the mammalian facilitative hexose transporter GLUT1. In human HL-60 cells, which express GLUT1, Chinese hamster ovary cells overexpressing GLUT1, and human erythrocytes, gossypol inhibited hexose transport in a concentration-dependent fashion, indicating that blocking of GLUT1 activity is independent of cellular context. With the exception of red blood cells, the inhibition of cellular transport was instantaneous.

View Article and Find Full Text PDF

Andrographolide is the main labdane diterpene present in Andrographis paniculata. Two lines of evidence report immunostimulant and anti-inflammatory properties for andrographolide in different models. Using murine T-cells in vitro we demonstrated that andrographolide and to a lesser extent, 14-deoxyandrographolide (14-DAP), reduced significantly, in a dose-dependent manner, the IFN-gamma production induced by concanavaline A (CON-A), with an IC50 of 1.

View Article and Find Full Text PDF

Background: Smoking continues to be one of the most important health burdens worldwide.

Aim: To describe smoking habits and associated risk factors in the population of Santiago, Chile.

Material And Methods: A cross sectional study of a representative sample of the population, from 16 to 64 years old, residents of Santiago, Chile (total population: 3,237,286).

View Article and Find Full Text PDF

It has been proposed that GLUT1, a membrane protein that transports hexoses and the oxidized form of vitamin C, dehydroascorbic acid, is also a transporter of nicotinamide (Sofue, M., Yoshimura, Y., Nishida, M.

View Article and Find Full Text PDF