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Psychological factors, such as anxiety, fatigue or stress, may influence the course of pregnancy and lead to spontaneous abortions. Psychological comfort is advised to increase symptoms regression and successful termination of pregnancy. The study aimed to evaluate the intensification and characteristics of anxiety in women with symptoms of imminent abortion and to analyze the relationship between...
Several studies have reported the anxiolytic-like effects of various nitric oxide synthase inhibitors in distinct animal models. However, in the context of anxiety, the possible involvement of cyclic GMP, believed to be one of the main targets of NO, remains obscure. Cyclic GMP is degraded by the specific phosphodiesterases in the brain. Therefore, we studied the effect of the selective phosphodiesterase...
The neuropeptide angiotensin II (Ang II) has been recently found to be involved in cognitive processes. Both AT1 and AT2 angiotensin receptors seem to mediate this action. However, unspecific behavioural effects of the peptide, particularly motor and emotional, appear to influence the interpretation of cognition-oriented tests and contribute to considerable differences in opinions of various authors...
We observed the spontaneous behavior of a laboratory marsupial - the gray short-tailed opossum (Monodelphis domestica) - in the elevated plus-maze (EPM) during six consecutive sessions and compared it with the behavior of Long-Evans rats. During the first exposure to the maze both species spent most of the time in the enclosed arms but opossums showed much higher frequency of entries into the open...
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