PMID- 22633012 OWN - NLM STAT- MEDLINE DCOM- 20130503 LR - 20211021 IS - 1872-7123 (Electronic) IS - 0165-1781 (Print) IS - 0165-1781 (Linking) VI - 199 IP - 2 DP - 2012 Sep 30 TI - Platelet protein kinase C and brain-derived neurotrophic factor levels in borderline personality disorder patients. PG - 92-7 LID - S0165-1781(12)00211-9 [pii] LID - 10.1016/j.psychres.2012.04.026 [doi] AB - Borderline personality disorder (BPD) is a prevalent and difficult to treat psychiatric condition characterized by abrupt mood swings, intense anger and depression, unstable interpersonal relationships, impulsive self-destructive behavior and a suicide rate of approximately 10%. Possible underlying molecular dysregulations in BPD have not been well explored. Protein kinase C (PKC) and brain-derived neurotrophic factor (BDNF) have both been implicated in affective disorders, but their role in BPD has not been examined. Platelets were isolated from blood obtained from 24 medication-free BPD patients and 18 healthy control subjects. PKC-alpha, phosphorylated-PKC-alpha (p-PKCalpha), PKC-betaII, and BDNF were measured in platelet homogenates by immunoblotting. In the males, platelet BDNF and PKC-alpha levels were lower in patients than controls. p-PKC-alpha and PKC-betaII were lower at trend levels. In the entire sample, platelet p-PKCalpha and PKC-alpha activity were lower, at a trend level, in patients compared to controls. This is the first report to our knowledge of PKC and BDNF activity in BPD and calls for replication. These findings are consistent with altered PKC and BDNF activity in a range of neuropsychiatric conditions including bipolar disorder, depression and suicide. CI - Published by Elsevier Ireland Ltd. FAU - Koenigsberg, Harold W AU - Koenigsberg HW AD - Mount Sinai School of Medicine, Department of Psychiatry, New York, NY, USA. HWarrenK@nyc.rr.com FAU - Yuan, Peixiong AU - Yuan P FAU - Diaz, George A AU - Diaz GA FAU - Guerreri, Stephanie AU - Guerreri S FAU - Dorantes, Christine AU - Dorantes C FAU - Mayson, Sarahjo AU - Mayson S FAU - Zamfirescu, Constantin AU - Zamfirescu C FAU - New, Antonia S AU - New AS FAU - Goodman, Marianne AU - Goodman M FAU - Manji, Husseini K AU - Manji HK FAU - Siever, Larry J AU - Siever LJ LA - eng GR - M01 RR000071/RR/NCRR NIH HHS/United States GR - 5MO1RR00071/RR/NCRR NIH HHS/United States GR - ImNIH/Intramural NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't DEP - 20120526 PL - Ireland TA - Psychiatry Res JT - Psychiatry research JID - 7911385 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Isoenzymes) RN - EC 2.7.11.13 (Protein Kinase C) SB - IM MH - Adult MH - Blood Platelets/*chemistry/enzymology MH - Blotting, Western MH - Borderline Personality Disorder/*blood/enzymology MH - Brain-Derived Neurotrophic Factor/*blood MH - Case-Control Studies MH - Female MH - Humans MH - Isoenzymes/blood MH - Male MH - Protein Kinase C/*blood PMC - PMC4128317 MID - NIHMS381067 COIS- CONFLICT OF INTEREST The authors have no financial conflicts of interest with regard to the content of this work. EDAT- 2012/05/29 06:00 MHDA- 2013/05/04 06:00 PMCR- 2014/08/11 CRDT- 2012/05/29 06:00 PHST- 2011/06/21 00:00 [received] PHST- 2012/04/16 00:00 [revised] PHST- 2012/04/18 00:00 [accepted] PHST- 2012/05/29 06:00 [entrez] PHST- 2012/05/29 06:00 [pubmed] PHST- 2013/05/04 06:00 [medline] PHST- 2014/08/11 00:00 [pmc-release] AID - S0165-1781(12)00211-9 [pii] AID - 10.1016/j.psychres.2012.04.026 [doi] PST - ppublish SO - Psychiatry Res. 2012 Sep 30;199(2):92-7. doi: 10.1016/j.psychres.2012.04.026. Epub 2012 May 26.