期刊
TOXICOLOGY REPORTS
卷 7, 期 -, 页码 480-491出版社
ELSEVIER
DOI: 10.1016/j.toxrep.2020.03.006
关键词
Di-n-butyl phthalate; Hippocampus; Cognitive impairments; Multi-generational assessment; Endocrine dysfunction; Acetylcholinesterase
类别
资金
- UGC, New Delhi, India [F.No.41-31/2012 (SR)]
Di-n-butyl phthalate (DBP) cause significant deficits in cognition and memory, however the neuroanatomical basis for impairments remain poorly understood. This study evaluates neurobehavioral changes in rats for three successive generations between non-siblings by administering DBP at 500mg/kg bw dose through oral gavage from gestation day-6 to 21 and lactation (3-weeks). Weaning period evaluations and developmental deficits assessed showed variations specific to generation and the toxic potential of DBP was confounded by behavioral deficits that include changes in sensorimotor development reflex response, poor performance, low memory retention and greater latency period. The cytoarchitectural alterations witnessed in hippocampus include condensed nuclei, vacuole formation and remarkable degeneration, shrinkage of pyramidal neurons in CA1 and CA3 regions; disorganized hilar cells and hyperplasia in dentate gyrus. Comparatively, the enlisted changes were high in subsequent generations than preceding and correlates assessed between cognitive impairment(s) and endocrine function confirm a link indicating vulnerability of immature animals as target to disrupt neural and endocrine functions.
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