A multicenter cohort study analysing the implementation of a new guideline for women with pregnancy of unknown location or ectopic pregnancy in the Netherlands.

Objective: Evaluation of the implementation of a new guideline for diagnosis and treatment of women with pregnancy of unknown location (PUL) or ectopic pregnancy (EP).

Design: Multicenter retrospective cohort study.

Setting: Six hospitals in the Northern part of the Netherlands.

Aberrant ventral dentate gyrus structure and function in trauma susceptible mice.

Post-traumatic stress disorder (PTSD) is a psychiatric disorder vulnerable individuals can develop following a traumatic event, whereas others are resilient. Enhanced insight into the mechanistic underpinnings contributing to these inter-individual differences in trauma susceptibility is key to improved treatment and prevention. Aberrant function of the hippocampal dentate gyrus (DG) may contribute to its psychopathology, with the dorsal DG potentially encoding trauma memory generalization and the ventral DG anxiety.

Impaired Fear Extinction Recall in Serotonin Transporter Knockout Rats Is Transiently Alleviated during Adolescence.

Adolescence is a developmental phase characterized by emotional turmoil and coincides with the emergence of affective disorders. Inherited serotonin transporter (5-HTT) downregulation in humans increases sensitivity to these disorders. To reveal whether and how gene variance affects fear-driven behavior in adolescence, we tested wildtype and serotonin transporter knockout (5-HTT) rats of preadolescent, adolescent, and adult age for cued fear extinction and extinction recall.