Search results for "Hormona"
showing 3 items of 183 documents
Fomento de la interacción social (conducta prosocial): correlatos neurobiológicos en el Transtorno de Espectro Autista
2015
Recientemente se ha observado un enorme incremento en la prevalencia del Trastorno de Espectro Autista (TEA) cuyos síntomas nucleares están relacionados con el déficit marcado en la comunicación e interacción social. El objetivo del trabajo fue realizar una revisión de la literatura sobre los factores neurobiológicos implicados en el fomento de la conducta social (conducta prosocial) en el TEA, en la última década. Las hormonas y neurotransmisores más relevantes serían la oxitocina, la vasopresina, la serotonina, andrógenos y estrógenos. En cuanto a neuroanatomía y sistema neuronales destacan la ínsula anterior, la amígdala, la zona fronto-parietal, el giro fusiforme y el sistema de neurona…
Associations of Sex Hormones and Hormonal Status With Arterial Stiffness in a Female Sample From Reproductive Years to Menopause
2021
ObjectiveLoss of sex hormones has been suggested to underlie menopause-associated increment in cardiovascular risk. We investigated associations of sex hormones with arterial stiffness in 19–58-years-old women. We also studied associations of specific hormonal stages, including natural menstrual cycle, cycle with combined oral contraceptives (COC) and menopausal status with or without hormone therapy (HT), with arterial stiffness.MethodsThis study includes repeated measurements of 65 healthy women representing reproductive (n=16 natural, n=10 COC-users) and menopause (n=5 perimenopausal, n=26 postmenopausal, n=8 HT-users) stages. Arterial stiffness outcomes were aortic pulse wave velocity (…
Short-term responses of Rana arvalis tadpoles to pH and predator stress: adaptive divergence in behavioural and physiological plasticity?
2022
Environmental stress is a major driver of ecological and evolutionary processes in nature. To cope with stress, organisms can adjust through phenotypic plasticity and/or adapt through genetic change. Here, we compared short-term behavioural (activity) and physiological (corticosterone levels, CORT) responses of Rana arvalis tadpoles from two divergent populations (acid origin, AOP, versus neutral origin, NOP) to acid and predator stress. Tadpoles were initially reared in benign conditions at pH 7 and then exposed to a combination of two pH (acid versus neutral) and two predator cue (predator cue versus no predator cue) treatments. We assessed behavioural activity within the first 15 min, an…