Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 3 de 3
Filter
Add filters








Language
Year range
1.
Rev. Hosp. Clin. Univ. Chile ; 31(3): 189-197, 2020.
Article in Spanish | LILACS | ID: biblio-1145373

ABSTRACT

The purpose of the immune system is to protect the body from pathogenic microorganisms such as bacteria, viruses, fungi and even tumor cells, which could cause disease. When the encounter with pathogens occurs, defenses are produced immediately through the innate response, faster and more nonspecific, and through the adaptive response, more defined and personalized for each attacker. Both are triggered by the cells of the immune system being able to communicate with each other, once they have been activated. The innate immune system works in tune with the acquired immune system through the close intervention of the sex hormones, with specific strategies of estrogen and progesterone. Both have a proven anti-inflammatory and antioxidant action not only at the level of the wall of blood vessels, skin and mucous membranes, but also in the protection of the central nervous system against all toxic agents, such as viruses. Estrogens and progesterone play an essential role in the immune response and its evolution, and although they initially appear as antagonistic responses, they are not, despite the fact that estrogens increase and progesterone seems to suppress the immune response, depending on the immune target according to the case. (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Coronavirus Infections/epidemiology , Immunity/immunology , Aging/physiology , Aging/immunology , Immunity/genetics
2.
Rev. chil. obstet. ginecol ; 58(6): 465-9, 1993. tab, ilus
Article in Spanish | LILACS | ID: lil-136834

ABSTRACT

El objetivo de este trabajo fue estudiar la importancia de la heterogeneidad molecular de prolactina PRL en muestras de suero de mujeres hiperprolactinémicas sobre la función ovárica. La heterogeneidad molecular de PRL se estudió en muestras de suero en siete pacientes hiperprolactinémicas idiopáticas, mediante cromatografías de filtración en gel (Sephadex G-100). De estas pacientes, cuatro de ellas tenían ciclos menstruales conservados y tres presentaban amenorreas. Los patrones cromatográficos obtenidos de cuatro pacientes con hiperprolactinemia y ciclos menstruales normales mostraron una predominancia de la forma de PRL big-big, de alto peso molecular 79 por ciento Sin embargo, las pacientes con hiperprolactinemia y amenorrea presentaron un patrón cromatográfico con predominancia de PRL little, o de bajo peso molecular 69 por ciento Estos resultados sugieren que la heterogeneidad molecular de PRL estaría asociada con desórdenes en el ciclo menstrual y por ende con la función ovárica, ya que la función ovárica normal en pacientes hiperprolactinémicas parece estar asociada a niveles aumentados de PRL big-big y la función ovárica alterada a niveles altos de PRL little


Subject(s)
Humans , Female , Hyperprolactinemia/blood , Menstrual Cycle , Prolactin/metabolism , Chromatography, Gel/methods , Radioimmunoassay/statistics & numerical data
SELECTION OF CITATIONS
SEARCH DETAIL