Bruna da Silva Oliveira, Thaís de Mérici Domingues Paula, Lucas Carvalho Cardoso, João Vitor Lopes Ferreira, Caroline Amaral Machado, Heliana de Barros Fernandes, Brener Cunha Carvalho, Ingrid Dos Santos Freitas, Lorena Taveira Nogueira, Antônio Lúcio Teixeira, Eliana Cristina de Brito Toscano, Aline Silva de Miranda, Fernanda Radicchi Campos Lobato de Almeida
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引用次数: 0
Abstract
Growing evidence has indicated a potential association between maternal consumption of caffeine and impaired cognition and behavior in rodent offspring. However, potential sex differences, as well as caffeine-related effects in subsequent generations are still poorly investigated. We aimed to investigate the impact of pre-and/or neonatal exposition to caffeine on the neurodevelopment of male and female mice offspring. Adult female Swiss mice were randomly divided into four experimental groups, which received, via gavage, water or caffeine (120 mg/day). Control/control (CC) received water during pregnancy and lactation; treated/control (TC): received caffeine during pregnancy and water during lactation; control/treated (CT): received water during pregnancy and caffeine during lactation; treated/treated (TT): received caffeine during pregnancy and lactation. Dams were euthanized at gestational day 17.5 and fetal brains were collected. Adult mice of F1 and F2 generations were submitted to behavioral analysis and their pre-frontal cortex and hippocampi were dissected to measure the levels of BDNF and CX3CL1. Caffeine induced reduction of CX3CL1 levels in female fetuses compared with controls. Maternal intake of caffeine was associated with anxiety- and compulsive-like behavior in both F1 and F2 female mice offspring. Interestingly, only F2 female mice exhibited caffeine-induced impairment of work memory. Hippocampal levels of CX3CL1 and BDNF were decreased in female F1TT and F2TT groups; while among males exposed to caffeine, only F1 offspring had reduced hippocampal CX3CL1 levels. Our results suggest that both pre- and neonatal exposition to caffeine lead to long-term behavioral and neurochemical impairments in a sex-dependent manner, adversely affecting the subsequent female generation.
期刊介绍:
Pharmacology Biochemistry & Behavior publishes original reports in the areas of pharmacology and biochemistry in which the primary emphasis and theoretical context are behavioral. Contributions may involve clinical, preclinical, or basic research. Purely biochemical or toxicology studies will not be published. Papers describing the behavioral effects of novel drugs in models of psychiatric, neurological and cognitive disorders, and central pain must include a positive control unless the paper is on a disease where such a drug is not available yet. Papers focusing on physiological processes (e.g., peripheral pain mechanisms, body temperature regulation, seizure activity) are not accepted as we would like to retain the focus of Pharmacology Biochemistry & Behavior on behavior and its interaction with the biochemistry and neurochemistry of the central nervous system. Papers describing the effects of plant materials are generally not considered, unless the active ingredients are studied, the extraction method is well described, the doses tested are known, and clear and definite experimental evidence on the mechanism of action of the active ingredients is provided.