PMID- 30029998 OWN - NLM STAT- MEDLINE DCOM- 20181126 LR - 20231213 IS - 1872-7549 (Electronic) IS - 0166-4328 (Linking) VI - 353 DP - 2018 Nov 1 TI - Rosmarinic acid reverses the deleterious effects of repetitive stress and tat protein. PG - 203-209 LID - S0166-4328(17)31814-4 [pii] LID - 10.1016/j.bbr.2018.07.010 [doi] AB - Human immunodeficiency virus type 1 (HIV) has infected more than 40 million people worldwide and is associated with central nervous system (CNS) disruption in at least 30% of these persons. The use of highly active antiretroviral therapy (HAART) has significantly reduced the systemic immunopathology associated with HIV, but the occurrence of neurological disorders continues to be reported in notable numbers. The present study evaluated the potential of rosmarinic acid to reverse the detrimental effects of an intracerebral injection of the viral protein tat. Control and tat-injected rats were also subjected to repetitive restrain stress (RRS) for 28 days, 6 h per day, to investigate whether subsequent stress exposure would worsen the effects of tat. 14 days after the initiation of RRS, animals were treated with rosmarinic acid (10 mg/kg given intraperitoneally) daily until the end of the stress exposure period. We assessed locomotor activity and anxiety-like behavioral changes. We also measured plasma corticosterone levels and quantified the expression of mineralocorticoid receptors (MR), glucocorticoid receptors (GR) and brain-derived neurotrophic factor (BDNF) in the hippocampus. Rosmarinic acid attenuated anxiety-like behavior induced by tat and stress, reduced plasma corticosterone levels and increased the expression of hippocampal GR, MR and BDNF when compared to controls. These results suggest that rosmarinic acid may reverse the anxiogenic effect of HIV-1 viral protein tat and related stress through modulation of the hypothalamic-pituitary-adrenal axis and hippocampal neurotrophic factor levels. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Makhathini, Khayelihle B AU - Makhathini KB AD - School of Laboratory Medicine and Medical Science, College of Health Science, University of KwaZulu-Natal, Durban, 4000, South Africa. Electronic address: Makhathini.kb@gmail.com. FAU - Mabandla, Musa V AU - Mabandla MV AD - School of Laboratory Medicine and Medical Science, College of Health Science, University of KwaZulu-Natal, Durban, 4000, South Africa. FAU - Daniels, William M U AU - Daniels WMU AD - School of Phyisiology, University of the Witwatersrand, Johannesburg, South Africa. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180718 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Anti-Anxiety Agents) RN - 0 (Bdnf protein, rat) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cinnamates) RN - 0 (Depsides) RN - 0 (Gene Products, tat) RN - 0 (Neuroprotective Agents) RN - 0 (Receptors, Glucocorticoid) RN - 0 (Receptors, Mineralocorticoid) RN - W980KJ009P (Corticosterone) SB - IM MH - Animals MH - Anti-Anxiety Agents/*pharmacology MH - Anxiety/*drug therapy/metabolism MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cinnamates/*pharmacology MH - Corticosterone/blood MH - Depsides/*pharmacology MH - Gene Products, tat/*toxicity MH - Hippocampus/drug effects/metabolism MH - Male MH - Motor Activity/drug effects MH - Neuroprotective Agents/*pharmacology MH - Random Allocation MH - Rats, Sprague-Dawley MH - Receptors, Glucocorticoid/metabolism MH - Receptors, Mineralocorticoid/metabolism MH - Stress, Psychological/*drug therapy/metabolism MH - Rosmarinic Acid OTO - NOTNLM OT - Anxiety OT - BDNF OT - Corticosterone OT - Glucocorticoid receptors OT - Hippocampus OT - Mineralocorticoid receptors OT - Rosmarinic acid EDAT- 2018/07/22 06:00 MHDA- 2018/11/27 06:00 CRDT- 2018/07/22 06:00 PHST- 2017/11/07 00:00 [received] PHST- 2018/06/29 00:00 [revised] PHST- 2018/07/17 00:00 [accepted] PHST- 2018/07/22 06:00 [pubmed] PHST- 2018/11/27 06:00 [medline] PHST- 2018/07/22 06:00 [entrez] AID - S0166-4328(17)31814-4 [pii] AID - 10.1016/j.bbr.2018.07.010 [doi] PST - ppublish SO - Behav Brain Res. 2018 Nov 1;353:203-209. doi: 10.1016/j.bbr.2018.07.010. Epub 2018 Jul 18.