AJKD:维生素B12水平对叶酸治疗与CKD病程之间相关性的影响

2019-10-20 xing.T MedSci原创

由此可见,叶酸治疗与轻度至中度CKD患者的CKD进展几率大大降低有关。

在叶酸强化或补充人群中,总同型半胱氨酸水平的主要营养决定因素是维生素B12(B12)状态。近日,肾脏病学权威杂志Am J Kidney Dis上发表了一篇研究文章,研究人员旨在评估B12水平对叶酸治疗与慢性肾脏疾病(CKD)进展之间的关联的修饰作用。

这是一项干预试验的事后分析,研究人员对中国卒中一级预防试验(CSPPT)的肾脏疾病子研究中的1374名患有高血压的轻度至中度CKD成年人进行的事后分析,在基线时对B12进行了测量,该研究在中国叶酸含量低的江苏省的20个社区中进行。这些参与者随机接受每日两次接受依那普利10 mg和叶酸0.8 mg或单独服用依那普利10mg治疗。该研究的主要结局是CKD的进展(定义为肾小球滤过率[eGFR]降低≥30%,如果基线eGFR≥60mL/min/1.73m2则降至<60mL/min/1.73m2;或者如果基线eGFR≤60 mL/min/1.73m2,eGFR降低≥50%或肾衰竭。

该研究的平均基线eGFR为86.1±20.5(SD)mL/min/1.73m2,中位治疗时间为4.4年。与单独服用依那普利相比,基线B12水平较高(≥248pmol/L)的参与者中,依那普利-叶酸治疗可使主要结局的几率降低83%(OR为0.17;95%CI为0.07- 0.40)。然而,在基线B12水平<248pmol/L(代谢性B12缺乏)的人群中,主要结局之间无显著的组间差异(OR为1.21;95%CI为0.51-2.85)。B12水平与叶酸治疗之间的相互作用很显著(P=0.001)。

由此可见,叶酸治疗与轻度至中度CKD患者的CKD进展几率大大降低有关。 

原始出处:


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    2020-05-23 naiwu77
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    2019-10-22 马龙
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    2019-10-22 thm112988

    0

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    2019-10-20 njwbhuang

    很好的研究。

    0

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孕期维生素B12(B12)水平较低与母亲肥胖、胰岛素抵抗(IR)和妊娠期糖尿病(GDM)有关。维生素B12是一碳代谢的一个关键因素。

Clin Nutr:维生素B12补充剂能预防糖尿病患者的认知下降吗?

老年糖尿病患者有认知能力下降的风险。维生素B12缺乏症与老年人认知障碍和阿尔茨海默病相关。因此缺乏维生素B12可能会导致老年糖尿病患者的认知能力下降。研究纳入了271例糖尿病门诊非痴呆患者,年龄70岁或以上,血浆维生素B12 150-300 pmol/L,随机分配服用甲钴胺1000微克或外表相似的安慰剂药片,每日一次,27个月。所有受试者随访9个月。主要结果是认知功能下降(临床痴呆评定量表(CDR

Am J Clin Nutr:宝宝缺维生素B12,认知能力可能受损

挪威研究人员发现,打小维生素B12摄入不足的孩子在认知方面可能会面临更多障碍,如更难理解同龄人情感、认字和理解复杂几何图形更费劲儿等。挪威尤尼研究所研究人员在最新一期《美国临床营养学杂志》上发表文章说,他们在尼泊尔巴克塔普尔市采集500名婴儿的血样,测量他们体内维生素B12水平。大约5年后,研究人员联系到其中320名孩子,展开多项发展和认知能力测试。结果显示,幼年维生素B12水平与认知能力

Cell Res:中国科大首次解析人类溶酶体维生素B12外排蛋白ABCD4的电镜结构

近日,中国科学技术大学微尺度物质科学国家研究中心和生命科学与医学部陈宇星教授和周丛照教授课题组与孙林峰教授课题组合作,利用冷冻电镜技术首次解析了人类溶酶体维生素B12外排蛋白ABCD4的近原子分辨率三维结构,为深入理解该类膜蛋白转运的分子机制以及其突变引发疾病的致病机理提供了基础。该研究成果以“Cryo-EM structure of human lysosomal cobalamin expor

CLIN CHEM:为何少年血浆甲基丙二酸和总同型半胱氨酸增加?-案例报道

一名18岁的男病人被转到本院,医生对近期全身性虚弱,步行困难,以及手指和远端三叉神经进行性麻木进行评估。病人的母亲说,她在16岁的时候经历过4次类似的下肢无力症状,后自行消退。此外,病人的哥哥也发生了类似的下肢软弱症并住院治疗。

Acta Biomat:开发出可促进机体神经组织再生的新型网格纤维结构

近日,一项刊登在国际杂志Acta Biomaterialia上的研究报告中,来自日本大阪大学的研究人员通过研究开发出了一种网格结构,其能够被缠绕在损伤的周围神经组织上来帮助促进损伤神经的再生并且恢复其功能。 这种网格结构非常柔软且能够在机体中降解,其中掺入了对神经系统功能正常发挥非常关键