PMID- 17910739 OWN - NLM STAT- MEDLINE DCOM- 20080414 LR - 20131121 IS - 1369-1600 (Electronic) IS - 1355-6215 (Linking) VI - 13 IP - 1 DP - 2008 Mar TI - Changes in leptin, ghrelin, growth hormone and neuropeptide-Y after an acute model of MDMA and methamphetamine exposure in rats. PG - 15-25 AB - Club drug abuse is a growing problem in the United States. Beyond addiction and toxicity are endocrine effects which are not well characterized. Specifically, the changes in appetite following exposure to drugs of abuse are an interesting but poorly understood phenomenon. Serum hormones such as leptin, ghrelin, growth hormone (GH), and neuropeptide-Y (NP-Y) are known to affect appetite, but have not been studied extensively with drugs of abuse. In this work, we examine the effects of club drugs 3,4-methylenedioxymethamphetamine (MDMA) (ecstasy) and methamphetamine (METH) (doses of 5, 20 and 40 mg/kg) on serum concentrations of these hormones in adult male Sprague-Dawley rats 6, 12, 24 and 48 hours after drug administration. In a dose-dependent manner, MDMA was shown to cause transient significant decreases in serum leptin and GH followed by a base line recovery after 24 hours. Conversely, serum ghrelin increased and normalized after 24 hours. Interestingly, serum NP-Y showed a steady decrease in both treatment of MDMA and METH at different time points and dosages. In humans, abuse of these drugs reduces eating. As evident from these data, acute administration of METH and MDMA had significant effects on different serum hormone levels involved in appetite regulation. Future studies should be performed to see how chronic, low dose drug administration would affect hormone levels and try to answer questions about the physiological mechanisms involved in the anorexic paradigm observed in drug use. FAU - Kobeissy, Firas H AU - Kobeissy FH AD - University of Florida College of Medicine, Gainesville, FL 32610, USA. firasko@ufl.edu FAU - Jeung, Jennifer A AU - Jeung JA FAU - Warren, Matthew W AU - Warren MW FAU - Geier, Jacqueline E AU - Geier JE FAU - Gold, Mark S AU - Gold MS LA - eng GR - T 35 HL07489/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20071002 PL - United States TA - Addict Biol JT - Addiction biology JID - 9604935 RN - 0 (Adrenergic Uptake Inhibitors) RN - 0 (Ghrelin) RN - 0 (Leptin) RN - 0 (Neuropeptide Y) RN - 44RAL3456C (Methamphetamine) RN - 9002-72-6 (Growth Hormone) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Adrenergic Uptake Inhibitors/*toxicity MH - Amphetamine-Related Disorders/*blood MH - Animals MH - Appetite/drug effects MH - Body Weight/drug effects MH - *Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Ghrelin/*blood MH - Growth Hormone/*blood MH - Leptin/*blood MH - Male MH - Methamphetamine/*toxicity MH - N-Methyl-3,4-methylenedioxyamphetamine/*toxicity MH - Neuropeptide Y/*blood MH - Radioimmunoassay MH - Rats MH - Rats, Sprague-Dawley EDAT- 2007/10/04 09:00 MHDA- 2008/04/15 09:00 CRDT- 2007/10/04 09:00 PHST- 2007/10/04 09:00 [pubmed] PHST- 2008/04/15 09:00 [medline] PHST- 2007/10/04 09:00 [entrez] AID - ADB083 [pii] AID - 10.1111/j.1369-1600.2007.00083.x [doi] PST - ppublish SO - Addict Biol. 2008 Mar;13(1):15-25. doi: 10.1111/j.1369-1600.2007.00083.x. Epub 2007 Oct 2.