中国神经再生研究(英文版) ›› 2023, Vol. 18 ›› Issue (11): 2443-2448.doi: 10.4103/1673-5374.371375

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

母体饮食中缺乏叶酸或胆碱可恶化成年小鼠后代缺血性脑卒中的结局

  

  • 出版日期:2023-11-15 发布日期:2023-05-04

Maternal dietary deficiencies in folic acid or choline worsen stroke outcomes in adult male and female mouse offspring

McCoy Clementson1, 2, Lauren Hurley1, 3, Sarah Coonrod1, 3, Calli Bennett1, 2, Purvaja Marella1, 2, Agnes S. Pascual1, Kasey Pull1, #br# Brandi Wasek4, Teodoro Bottiglieri4, Olga Malysheva5, Marie A. Caudill5, Nafisa M. Jadavji1, 2, 3, 6, 7, *#br#   

  1. 1Department of Biomedical Sciences, Midwestern University, Glendale, AZ, USA; 2College of Osteopathic Medicine, Midwestern University, Glendale, AZ, USA; 3College of Veterinary Medicine, Midwestern University, Glendale, AZ, USA; 4Center of Metabolomics, Institute of Metabolic Disease, Baylor Scott & White Research Institute, Dallas, TX, USA; 5Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA; 6Department of Neuroscience, Carleton University, Ottawa, ON, Canada; 7Department of Child Health, College of Medicine – Phoenix, University of Arizona, Phoenix, AZ, USA
  • Online:2023-11-15 Published:2023-05-04
  • Contact: Nafisa M. Jadavji, PhD, nafisa.jadavji@mail.mcgill.ca.
  • Supported by:
    This study was supported by American Heart Association, No. 20AIREA35050015 (to NMJ).

摘要:

胎儿环境与其成年后的健康状况之间存在着联系;然而,仍不清楚母体营养如何影响后代的脑卒中结局。为了解母体饮食中缺乏叶酸或胆碱对3月龄后代脑卒中结局的影响。实验于成年雌性小鼠怀孕前4周、怀孕和哺乳期喂饲叶酸缺乏饮食、胆碱缺乏饮食或正常饮食。雄性和雌性后代断奶后开始正常饮食。于小鼠后代2月龄时,对感觉运动皮质进行光栓塞,建立缺血性脑卒中模型。喂饲叶酸缺乏饮食、胆碱缺乏饮食的母鼠肝脏中的S-腺苷蛋氨酸和血浆中的S-腺苷高半胱氨酸的水平降低。饮食中缺乏叶酸或胆碱的母鼠3月龄后代的运动功能受到损害,但脑组织缺血体积与喂饲正常饮食的母鼠3月龄后代相近。与雌性后代相比,雄性后代缺血脑组织的活性Caspase-3和缺氧诱导因子1α的水平较低。喂饲胆碱缺乏饮食母鼠后代的胆碱代谢指标甜菜碱水平相较于正常饮食母鼠后代更低。实验结果表明,在神经发育的关键时间点上,母体饮食营养不足会导致更差的脑卒中结局,从而强调了母亲饮食对后代健康的重要性。

https://orcid.org/0000-0002-3557-7307 (Nafisa M. Jadavji)

Abstract: Maternal one-carbon metabolism plays an important role in early life programming. There is a well-established connection between the fetal environment and the health status of the offspring. However, there is a knowledge gap on how maternal nutrition impacts stroke outcomes in offspring. The aim of our study was to investigate the role of maternal dietary deficiencies in folic acid or choline on stroke outcomes in 3-month-old offspring. Adult female mice were fed a folic acid-deficient diet, choline-deficient diet, or control diet 4 weeks before pregnancy. They were continued on diets during pregnancy and lactation. Male and female offspring were weaned onto a control diet and at 2 months of age were subjected to ischemic stroke within the sensorimotor cortex via photothrombotic damage. Mothers maintained on either a folic acid-deficient diet or choline-deficient diet had reduced levels of S-adenosylmethionine in the liver and S-adenosylhomocysteine in the plasma. After ischemic stroke, motor function was impaired in 3-month-old offspring from mothers receiving either a folic acid-deficient diet or choline-deficient diet compared to the animals receiving a control diet. In brain tissue, there was no difference in ischemic damage volume. When protein levels were assessed in ischemic brain tissue, there were lower levels of active caspase-3 and hypoxia-inducible factor 1α in males compared to females and betaine levels were reduced in offspring from the mothers receiving a choline-deficient diet. Our results demonstrate that a deficient maternal diet at critical time points in neurodevelopment results in worse stroke outcomes. This study emphasizes the importance of maternal diet and the impact it can have on offspring health. 

Key words: apoptosis, choline metabolism, folic acid, ischemic stroke, maternal diet, motor function, one-carbon metabolism, stroke outcome