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Published on: December 14, 2014
Effects of Afobazole on Postnatal Development of Rat Offspring
L I Bugaeva1, T D Denisova2, S A Sergeeva2
1Research Institute of Pharmacology, Volgograd State Medical University, Ministry of Health of the Russian Federation, Volgograd, Russia. lb.bugaeva@rambler.ru.
Insights
Maternal Afobazole exposure during pregnancy in rats led to temporary infantile developmental delays in pups, including slower physical and motor reflex development. However, most functions normalized by adulthood, with some sex-specific cognitive and reproductive differences observed.
Area of Science:
- Developmental toxicology
- Neurobehavioral teratology
Background:
- Prenatal exposure to pharmacological agents can impact offspring development.
- Afobazole is an anxiolytic drug with potential developmental effects that require investigation.
Purpose of the Study:
- To evaluate the effects of maternal Afobazole administration during gestation on the physical, sensory-motor, and behavioral development of rat offspring.
- To identify any sex-specific developmental outcomes in offspring exposed to Afobazole in utero.
Main Methods:
- Pregnant rats were administered Afobazole.
- Offspring physical development, sensory-motor reflexes, and behavioral patterns were assessed during infantile and juvenile periods.
- Sexual maturation and mnestic responses were evaluated in adulthood.
Main Results:
- Infantile rat pups exhibited delayed physical development, sensory-motor reflex maturation, and suppressed motor behavior.
- Postnatal development, including body weight gain and motor activity, intensified during the juvenile period.
- Female offspring showed delayed vaginal opening and impaired memory, while males exhibited normal sexual maturation and cognitive function.
Conclusions:
- Maternal Afobazole exposure during pregnancy causes transient developmental deficits in rat pups.
- Sex-specific differences in reproductive and cognitive development persist into adulthood.
- Further research is needed to elucidate the long-term implications and mechanisms of Afobazole's developmental toxicity.
Abstract:
Physical development, development of sensory and motor reflexes, behavioral and mnestic patterns were studied infantile and juvenile rat pups born by female rats receiving Afobazole during pregnancy. Physical development and development of sensory and motor reflexes in rats were completed without pathologies by the age of 2 months. During the infantile period, the rat pups demonstrated reduced body weight gain, delayed eye opening and pupillary response formation, decreased muscle force, and suppressed motor behavior. During the juvenile period, body weight gain and development of motor behavior were intensified. Females demonstrated later vagina opening and poorer mnestic responses. In males, the terms of sexual maturation were unchanged and processes of learning and memory retrieval were not impaired.
