PMID- 35175337 OWN - NLM STAT- MEDLINE DCOM- 20220422 LR - 20240413 IS - 1939-327X (Electronic) IS - 0012-1797 (Print) IS - 0012-1797 (Linking) VI - 71 IP - 5 DP - 2022 May 1 TI - MRI Metrics of Cerebral Endothelial Cell-Derived Exosomes for the Treatment of Cognitive Dysfunction Induced in Aging Rats Subjected to Type 2 Diabetes. PG - 873-880 LID - 10.2337/db21-0754 [doi] AB - Ongoing neurovascular dysfunction contributes to type 2 diabetes mellitus (T2DM)-induced cognitive deficits. However, it is not known whether early post onset of T2DM interventions may reduce evolving neurovascular dysfunction and thereby lead to diminution of T2DM-induced cognitive deficits. Using multiple MRI metrics, we evaluated neurovascular changes in T2DM rats treated with exosomes derived from cerebral endothelial cells (CEC-Exos). Two months after induction of T2DM in middle-aged male rats by administration of streptozotocin nicotinamide, rats were randomly treated with CEC-Exos twice weekly or saline for 4 consecutive weeks (n = 10/group). MRI measurements were performed at the end of the treatment, which included cerebral blood flow (CBF), contrast-enhanced T1-weighted imaging, and relaxation time constants T1 and T2. MRI analysis showed that compared with controls, the CEC-Exo-treated T2DM rats exhibited significant elevation of T2 and CBF in white matter and significant augmentation of T1 and reduction of blood-brain barrier permeability in gray matter. In the hippocampus, CEC-Exo treatment significantly increased T1 and CBF. Furthermore, CEC-Exo treatment significantly reduced T2DM-induced cognitive deficits measured by the Morris water maze and odor recognition tests. Collectively, our corresponding MRI data demonstrate that treatment of T2DM rats with CEC-Exos robustly reduced neurovascular dysfunction in gray and white matter and the hippocampus. CI - (c) 2022 by the American Diabetes Association. FAU - Ding, Guangliang AU - Ding G AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Li, Lian AU - Li L AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Zhang, Li AU - Zhang L AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Chopp, Michael AU - Chopp M AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. AD - Department of Physics, Oakland University, Rochester, MI. FAU - Davoodi-Bojd, Esmaeil AU - Davoodi-Bojd E AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Li, Qingjiang AU - Li Q AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Li, Chao AU - Li C AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Wei, Min AU - Wei M AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Zhang, Zhenggang AU - Zhang Z AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. FAU - Jiang, Quan AU - Jiang Q AUID- ORCID: 0000-0001-7908-4443 AD - Department of Neurology, Henry Ford Hospital, Detroit, MI. AD - Department of Physics, Oakland University, Rochester, MI. LA - eng GR - RF1 AG057494/AG/NIA NIH HHS/United States GR - R01 NS108463/NS/NINDS NIH HHS/United States GR - R01 AG068072/AG/NIA NIH HHS/United States GR - R56 AG055583/AG/NIA NIH HHS/United States GR - R01 NS079612/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Diabetes JT - Diabetes JID - 0372763 SB - IM MH - Aging MH - Animals MH - Benchmarking MH - *Cognitive Dysfunction/etiology/therapy MH - *Diabetes Mellitus, Type 2/complications MH - Endothelial Cells MH - *Exosomes MH - Magnetic Resonance Imaging MH - Male MH - Rats PMC - PMC9044132 EDAT- 2022/02/18 06:00 MHDA- 2022/04/23 06:00 PMCR- 2023/05/01 CRDT- 2022/02/17 12:25 PHST- 2021/08/29 00:00 [received] PHST- 2022/02/10 00:00 [accepted] PHST- 2022/02/18 06:00 [pubmed] PHST- 2022/04/23 06:00 [medline] PHST- 2022/02/17 12:25 [entrez] PHST- 2023/05/01 00:00 [pmc-release] AID - 144591 [pii] AID - 210754 [pii] AID - 10.2337/db21-0754 [doi] PST - ppublish SO - Diabetes. 2022 May 1;71(5):873-880. doi: 10.2337/db21-0754.