PMID- 29230173 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1663-9812 (Print) IS - 1663-9812 (Electronic) IS - 1663-9812 (Linking) VI - 8 DP - 2017 TI - Blueberry Phenolics Reduce Gastrointestinal Infection of Patients with Cerebral Venous Thrombosis by Improving Depressant-Induced Autoimmune Disorder via miR-155-Mediated Brain-Derived Neurotrophic Factor. PG - 853 LID - 10.3389/fphar.2017.00853 [doi] LID - 853 AB - Cerebral venous thrombosis (CVT) often causes human depression, whereas depression-induced low immunity makes the patients susceptible to gastrointestinal infection. Blueberry possesses antidepressant properties which may improve autoimmunity and reduce gastrointestinal infection. Brain-derived neurotrophic factor (BDNF) performs antidepressant function and can be regulated by miR-155, which may be affected by blueberry. To explore the possible molecular mechanism, blueberry compounds were analyzed by high-performance liquid chromatography. Activity of compounds was tested by using HT22 cells. The present study tested 124 patients with CVT-induced mild-to-moderate depressive symptoms (Center for Epidemiologic Studies-Depression Scale [CES-D] >/=16) and gastrointestinal infection. Patients were randomly assigned to blueberry extract group (BG, received 10 mg blueberry extract daily) and placebo group (PG, received 10 mg placebo daily). After 3 months, depression, gastrointestinal infection and lipid profiles were investigated. Serum miR-155 and BDNF were measured using real-time quantitative polymerase chain reaction and or Western Blot. Blueberry treatment improved depressive symptoms and lipid profiles, and also reduced gastrointestinal infection in the BG group (P < 0.05) but those of the PG group (P = 1). These changes were paralleled by increase in serum levels of BDNF and miR-155 (P < 0.05). HPLC analysis showed that blueberry extracts were the main phenolic acids with 0.18, 0.85, 0.26, 0.72, 0.66, 0.4,1, and 1.92 mg/g of gentisic acid, chlorogenic acid, [2]-epicatechin, p-coumaric acid, benzoic acid, p-anisic acid, and quercetin in blueberry extracts, respectively. Phenolics in blueberry are possible causal agents in improving antidepressant activity and reducing gastrointestinal infection. Administration of blueberry increased BDNF expression and miR-155. Blueberry cannot affect BDNF level when miR-155 is overexpressed or inhibited. Phenolics from blueberry reduced gastrointestinal infection of patients with CVT by improving antidepressant activity via upregulation of miR-155-mediated BDNF. FAU - Xu, Ning AU - Xu N AD - Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China. FAU - Meng, Hao AU - Meng H AD - Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China. FAU - Liu, Tianyi AU - Liu T AD - Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China. FAU - Feng, Yingli AU - Feng Y AD - Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China. FAU - Qi, Yuan AU - Qi Y AD - Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China. FAU - Zhang, Donghuan AU - Zhang D AD - Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China. FAU - Wang, Honglei AU - Wang H AD - Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China. LA - eng PT - Journal Article DEP - 20171127 PL - Switzerland TA - Front Pharmacol JT - Frontiers in pharmacology JID - 101548923 PMC - PMC5712003 OTO - NOTNLM OT - brain-derived neurotrophic factor OT - cerebral venous thrombosis OT - depression OT - gastrointestinal infection OT - miR-155 EDAT- 2017/12/13 06:00 MHDA- 2017/12/13 06:01 PMCR- 2017/11/27 CRDT- 2017/12/13 06:00 PHST- 2017/09/06 00:00 [received] PHST- 2017/11/07 00:00 [accepted] PHST- 2017/12/13 06:00 [entrez] PHST- 2017/12/13 06:00 [pubmed] PHST- 2017/12/13 06:01 [medline] PHST- 2017/11/27 00:00 [pmc-release] AID - 10.3389/fphar.2017.00853 [doi] PST - epublish SO - Front Pharmacol. 2017 Nov 27;8:853. doi: 10.3389/fphar.2017.00853. eCollection 2017.