PMID- 18495421 OWN - NLM STAT- MEDLINE DCOM- 20081216 LR - 20191210 IS - 0892-0362 (Print) IS - 0892-0362 (Linking) VI - 30 IP - 5 DP - 2008 Sep-Oct TI - Gestational all-trans retinoic acid treatment in the rat: neurofunctional changes and cerebellar phenotype. PG - 395-403 LID - 10.1016/j.ntt.2008.03.064 [doi] AB - Neurofunctional effects produced by gestational all-trans retinoic acid (all-trans RA) treatment were investigated in the offspring of Sprague-Dawley rats. Reproduction data, onset of reflexive behavior, locomotor activity, motor coordination and motor learning were examined. Moreover, possible changes in size and morphology of the cerebellum were evaluated. The results show that all-trans RA treatment (2.5 mg/kg, by gavage) on gestational days (GD) 11-13 significantly increased postnatal mortality and decreased pup weight gain. Moreover, all-trans RA-treated rats showed a significant delay in eyes opening, hair growth as well as in the maturation of righting reflex, cliff aversion and pole grasping. All-trans RA treatment significantly impaired the ambulatory activity in adult rats without altering the number of rearings. All-trans RA-treated rats subjected to the rotarod/accelerod task showed significant impairment in both motor coordination and motor learning ability. The morphological analysis revealed a significant reduction in the cerebellar size and impairment in foliation profile, at PND 3 with subsequent recovery at PNDs 8 and 40. The evidence that functional alterations increase with age and persist in adulthood whereas the morphological changes decline with age, strongly supports the view that, besides the cerebellum morphology, the organization of the cerebellar circuitry, and in particular of cortico-cerebellar connections, are also affected by all-trans RA treatment. FAU - Coluccia, Addolorata AU - Coluccia A AD - Department of Pharmacology and Human Physiology, Medical School, University of Bari, Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy. FAU - Belfiore, Domenico AU - Belfiore D FAU - Bizzoca, Antonella AU - Bizzoca A FAU - Borracci, Pietro AU - Borracci P FAU - Trerotoli, Paolo AU - Trerotoli P FAU - Gennarini, Gianfranco AU - Gennarini G FAU - Carratu, Maria Rosaria AU - Carratu MR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080401 PL - United States TA - Neurotoxicol Teratol JT - Neurotoxicology and teratology JID - 8709538 RN - 0 (Antineoplastic Agents) RN - 0 (Teratogens) RN - 5688UTC01R (Tretinoin) SB - IM MH - Administration, Oral MH - Animals MH - Antineoplastic Agents/toxicity MH - Body Weight/drug effects MH - Cerebellum/*abnormalities/*drug effects/pathology MH - Dyskinesia, Drug-Induced/physiopathology MH - Female MH - Learning Disabilities/chemically induced/physiopathology MH - Male MH - Motor Activity/drug effects MH - Motor Skills Disorders/chemically induced/physiopathology MH - Nervous System Malformations/*chemically induced/pathology/physiopathology MH - Neural Pathways/abnormalities/drug effects/physiopathology MH - Phenotype MH - Pregnancy MH - Prenatal Exposure Delayed Effects/pathology/*physiopathology MH - Rats MH - Rats, Sprague-Dawley MH - Reproduction/drug effects MH - Sex Characteristics MH - Stereoisomerism MH - Teratogens/*toxicity MH - Time MH - Tretinoin/*toxicity EDAT- 2008/05/23 09:00 MHDA- 2008/12/17 09:00 CRDT- 2008/05/23 09:00 PHST- 2007/07/19 00:00 [received] PHST- 2008/02/25 00:00 [revised] PHST- 2008/03/19 00:00 [accepted] PHST- 2008/05/23 09:00 [pubmed] PHST- 2008/12/17 09:00 [medline] PHST- 2008/05/23 09:00 [entrez] AID - S0892-0362(08)00105-0 [pii] AID - 10.1016/j.ntt.2008.03.064 [doi] PST - ppublish SO - Neurotoxicol Teratol. 2008 Sep-Oct;30(5):395-403. doi: 10.1016/j.ntt.2008.03.064. Epub 2008 Apr 1.