Esfandiarei Mitra, Strash Shawn G U, Covaleski Amanda, Ille Sharadyn, Li Weidang, Jadavji Nafisa M
Department of Biomedical Sciences, Midwestern University, Glendale, AZ, USA.
Anesthesiology, Pharmacology, & Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
bioRxiv. 2024 Jul 16:2024.07.15.603575. doi: 10.1101/2024.07.15.603575.
Ischemic stroke is one of the leading causes of disability and death globally, with a rising incidence in younger age groups. It's well known that maternal diet during pregnancy and lactation is vital for the early neurodevelopment of offspring. One-carbon (1C) metabolism, including folic acid and choline, plays a vital role in closure of the neural tube . However, the impact of maternal dietary deficiencies in 1C on offspring neurological function following ischemic stroke later in life remains undefined. The aim of this study was to investigate inflammation in blood and brain tissue of offspring from mothers deficient in dietary folic acid or choline. Female mice were maintained on either a control or deficient diets prior to and during pregnancy and lactation. When offspring were 3-months of age, ischemic stroke was induced. One and half months later blood and brain tissue were collected. We measured levels of matrix-metalloproteases (MMP)-2 and 9 in both plasma and brain tissue, and report reduced levels of MMP-2 in both, with no changes observed in MMP-9. This observation supports our working hypothesis that maternal dietary deficiencies in folic acid or choline during early neurodevelopment impact the levels of inflammation in offspring after ischemic stroke.
缺血性中风是全球残疾和死亡的主要原因之一,在较年轻年龄组中的发病率呈上升趋势。众所周知,孕期和哺乳期的母体饮食对后代的早期神经发育至关重要。包括叶酸和胆碱在内的一碳(1C)代谢在神经管闭合中起着至关重要的作用。然而,母体饮食中1C缺乏对后代成年后缺血性中风后神经功能的影响仍不明确。本研究的目的是调查饮食中叶酸或胆碱缺乏的母亲所生后代的血液和脑组织中的炎症情况。雌性小鼠在怀孕和哺乳期之前及期间分别给予对照饮食或缺乏饮食。当后代3个月大时,诱导其发生缺血性中风。一个半月后收集血液和脑组织。我们测量了血浆和脑组织中基质金属蛋白酶(MMP)-2和9的水平,结果显示两者中MMP-2水平均降低,而MMP-9未观察到变化。这一观察结果支持了我们的工作假设,即早期神经发育期间母体饮食中叶酸或胆碱缺乏会影响后代缺血性中风后的炎症水平。