营养研究的透明报告促进了严谨,再现性,以及与人类营养的相关性。我们对最近报道小鼠饮食叶酸干预的文章进行了范围审查,作为案例研究,以确定通用研究设计项目的报告频率(即,性别,应变,和年龄)和营养特定项目(即,基本饮食组成,干预剂量,持续时间,和暴露验证)在基础营养研究中。我们在EMBASE中确定了798篇原始研究文章,Medline,食品科学与技术文摘(FSTA)全球卫生,以及2009年1月至2021年7月之间发布的国际药物文摘(IPA)数据库,其中在小鼠中使用了饮食叶酸(FA)干预措施。我们确定了312篇原始同行评审的文章,包括191篇非妊娠小鼠研究和126篇妊娠小鼠研究。大多数研究报告性别(99%),菌株(99%),年龄(83%)。大多数研究使用3-9周的C57BL/6(53%)或BALB/c(11%)小鼠。非妊娠研究更可能仅使用雄性小鼠(57%)。膳食FA干预措施变化很大且重叠:缺乏(0-3mg/kg),对照(0-16mg/kg),并补充(0-50mg/kg)。只有63%的研究使用具有声明的FA含量的开放式配方基础饮食,60%的研究使用叶酸状态生物标志物验证了FA暴露。非妊娠研究的干预持续时间为1至104周。妊娠研究的干预持续时间为1-19周,发生在怀孕前和/或怀孕和/或哺乳期间。总的来说,17%的研究未报告≥1个通用研究设计项目,40%的研究未报告≥1个营养特异性研究设计项目。营养研究中重要的通用和营养特定研究设计细节的可变性和频繁缺乏报告限制了它们的普遍性。再现性,和解释。在动物研究中使用报告清单将提高关键研究设计的报告质量,并在基于动物的营养研究中实施因素。
Transparent reporting of nutrition research promotes rigor, reproducibility, and relevance to human nutrition. We performed a scoping review of recent articles reporting dietary folate interventions in mice as a case
study to determine the reporting frequency of generic
study design items (i.e., sex, strain, and age) and nutrition-specific items (i.e., base diet composition, intervention doses, duration, and exposure verification) in basic nutrition research. We identified 798 original research articles in the EMBASE, Medline, Food Science and Technology Abstracts (FSTA), Global Health, and International Pharmaceutical Abstracts (IPA) databases published between January 2009 and July 2021 in which a dietary folic acid (FA) intervention was used in mice. We identified 312 original peer-reviewed articles including 191 studies in nonpregnant and 126 in pregnant mice. Most studies reported sex (99%), strain (99%), and age (83%). The majority of studies used C57BL/6 (53%) or BALB/c (11%) mice aged 3-9 wk. Nonpregnancy studies were more likely to use only male mice (57%). Dietary FA interventions varied considerably and overlapped: deficiency (0-3 mg/kg), control (0-16 mg/kg), and supplemented (0-50 mg/kg). Only 63% of studies used an open-formula base diet with a declared FA content and 60% of studies verified FA exposure using folate status biomarkers. The duration of intervention ranged from 1 to 104 wk for nonpregnancy studies. The duration of intervention for pregnancy studies was 1-19 wk, occurring variably before pregnancy and/or during pregnancy and/or lactation. Overall, 17% of studies did not report ≥1 generic study design item(s) and 40% did not report ≥1 nutrition-specific
study design item(s). The variability and frequent lack of reporting of important generic and nutrition-specific
study design details in nutrition studies limit their generalizability, reproducibility, and interpretation. The use of reporting checklists for animal research would enhance reporting quality of key
study design and conduct factors in animal-based nutrition research.