Chaudhari Archana Somabhai, Raghuvanshi Ruma, Kumar G Naresh
Molecular Microbial Biochemistry Laboratory (M.M.B.L.), Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390002, India.
Appl Microbiol Biotechnol. 2017 Jun;101(11):4713-4723. doi: 10.1007/s00253-017-8207-7. Epub 2017 Mar 10.
Consumption of fructose leads to metabolic syndrome, but it is also known to increase iron absorption. Present study investigates the effect of genetically modified Escherichia coli Nissle 1917 (EcN) synbiotic along with fructose on non-heme iron absorption. Charles foster rats weighing 150-200 g were fed with iron-deficient diet for 2 months. Probiotic treatment of EcN (pqq) and EcN (pqq-glf-mtlK) was given once per week, 10 cells after 2 months with fructose in drinking water. Iron levels, blood, and liver parameters for oxidative stress, hyperglycemia, and dyslipidemia were estimated. Transferrin-bound iron levels in the blood decreased significantly after 10 weeks of giving iron-deficient diet. Probiotic treatment of EcN (pqq-glf-mtlK) and fructose together led to the restoration of normal transferrin-bound iron levels and blood and hepatic antioxidant levels as compared to iron-deficient control group. The probiotic also led to the restoration of body weight along with levels of serum and hepatic lipid, blood glucose, and antioxidant in the blood and liver as compared to iron-deficient control group. Restoration of liver injury marker enzymes was also seen. Administration of EcN-producing PQQ and mannitol dehydrogenase enzyme together with fructose led to increase in the transferrin-bound iron levels in the blood and amelioration of consequences of metabolic syndrome caused due to fructose consumption.
摄入果糖会导致代谢综合征,但已知它也会增加铁的吸收。本研究调查了基因改造的大肠杆菌Nissle 1917(EcN)合生元与果糖对非血红素铁吸收的影响。将体重150 - 200克的查尔斯·福斯特大鼠喂食缺铁饮食2个月。每周给予EcN(pqq)和EcN(pqq - glf - mtlK)益生菌治疗一次,2个月后给予10个细胞,并在饮用水中添加果糖。评估了铁水平、血液以及氧化应激、高血糖和血脂异常的肝脏参数。给予缺铁饮食10周后,血液中转铁蛋白结合铁水平显著降低。与缺铁对照组相比,EcN(pqq - glf - mtlK)益生菌与果糖共同治疗可使转铁蛋白结合铁水平以及血液和肝脏抗氧化水平恢复正常。与缺铁对照组相比,该益生菌还使体重以及血清和肝脏脂质、血糖水平以及血液和肝脏中的抗氧化剂水平恢复正常。还观察到肝损伤标志物酶的恢复。EcN产生的吡咯喹啉醌(PQQ)和甘露醇脱氢酶与果糖一起给药导致血液中转铁蛋白结合铁水平升高,并改善了因摄入果糖引起的代谢综合征后果。