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Effect of crude polysaccharide from seaweed, Dictyopteris divaricata (CDDP) on gut microbiota restoration and anti-diabetic activity in streptozotocin (STZ)-induced T1DM mice
Gut Pathogens ( IF 4.3 ) Pub Date : 2022-09-17 , DOI: 10.1186/s13099-022-00512-1
Nimra Zafar Siddiqui 1 , Ata Ur Rehman 1 , Waleed Yousuf 2 , Asif Iqbal Khan 1 , Nabeel Ahmed Farooqui 1 , Shizhu Zang 1 , Yi Xin 1 , Liang Wang 3
Affiliation  

Type-1 Diabetes Mellitus (T1DM) is regarded as a multifunctional, immune-related disease which causes massive destruction of islet β-cells in pancreas resulting in hyperglycemic, hypoinsulinemia and hyperlipidimic conditions. The aim of the present study, was to investigate the hypothesis that streptozotocin (STZ)-induced T1DM in Balb/c mice when treated with crude polysaccharide from seaweed, Dictyopteris divaricata (CDDP) depicts improvement in diabetes-related symptoms. Treatment with CDDP resulted in decreased body weight loss, improved food consumption and water intake disbalances. The CDDP effectively improved fasting blood glucose, oral glucose tolerance (OGTT), serum insulin, insulin secretion, rejuvenation of β-cells mass, serum lipid profile and pro-inflammatory cytokines levels. Additionally, treatment with CDDP increased the population of beneficial bacteria such as Firmicutes, Bacteroidetes and Lactobacillus at phylum, family and genus levels by 16S rRNA sequencing. Furthermore, immunohistological examination confirmed that CDDP reduces the inflammation and restored the structural morphology of colon and upraised the levels of insulin receptor substrate-1 (IRS-1), Mucin-2 (MUC-2) and tight-junction proteins (TJs) whereby maintaining the gut structures and barrier permeability. Thus, the above presented data, highlights the safe and therapeutic effects of crude polysaccharide (CDDP) from D. divaricata in the treatment and restoration of T1DM disorders and can be used as a food supplement alternative to diabetes medicine.

中文翻译:

海藻粗多糖、Dictyopteris divaricata (CDDP) 对链脲佐菌素 (STZ) 诱导的 T1DM 小鼠肠道菌群恢复和抗糖尿病活性的影响

1 型糖尿病 (T1DM) 被认为是一种多功能的免疫相关疾病,它会导致胰腺中胰岛 β 细胞的大量破坏,从而导致高血糖、低胰岛素血症和高脂血症。本研究的目的是调查当用来自海藻的粗多糖处理时,链脲佐菌素 (STZ) 诱导 Balb/c 小鼠 T1DM,Dictyopteris divaricata (CDDP) 描述了糖尿病相关症状的改善。用 CDDP 治疗导致体重减轻减少、食物消耗改善和水摄入失衡。CDDP有效改善空腹血糖、口服葡萄糖耐量(OGTT)、血清胰岛素、胰岛素分泌、β细胞团再生、血脂谱和促炎细胞因子水平。此外,通过 16S rRNA 测序,用 CDDP 处理在门、科和属水平上增加了有益细菌的数量,例如厚壁菌门、拟杆菌门和乳杆菌。此外,免疫组织学检查证实,CDDP 可减轻炎症并恢复结肠的结构形态,并提高胰岛素受体底物-1 (IRS-1)、粘蛋白-2 (MUC-2) 和紧密连接蛋白 (TJs) 的水平,从而维持肠道结构和屏障通透性。因此,上述数据突出了 D. divaricata 粗多糖 (CDDP) 在治疗和修复 T1DM 疾病中的安全性和治疗作用,并可用作糖尿病药物的食品补充剂替代品。通过 16S rRNA 测序确定科和属水平。此外,免疫组织学检查证实,CDDP 可减轻炎症并恢复结肠的结构形态,并提高胰岛素受体底物-1 (IRS-1)、粘蛋白-2 (MUC-2) 和紧密连接蛋白 (TJs) 的水平,从而维持肠道结构和屏障通透性。因此,上述数据突出了 D. divaricata 粗多糖 (CDDP) 在治疗和修复 T1DM 疾病中的安全性和治疗作用,并可用作糖尿病药物的食品补充剂替代品。通过 16S rRNA 测序确定科和属水平。此外,免疫组织学检查证实,CDDP 可减轻炎症并恢复结肠的结构形态,并提高胰岛素受体底物-1 (IRS-1)、粘蛋白-2 (MUC-2) 和紧密连接蛋白 (TJs) 的水平,从而维持肠道结构和屏障通透性。因此,上述数据突出了 D. divaricata 粗多糖 (CDDP) 在治疗和修复 T1DM 疾病中的安全性和治疗作用,并可用作糖尿病药物的食品补充剂替代品。粘蛋白 2 (MUC-2) 和紧密连接蛋白 (TJ),从而维持肠道结构和屏障通透性。因此,上述数据突出了 D. divaricata 粗多糖 (CDDP) 在治疗和修复 T1DM 疾病中的安全性和治疗作用,并可用作糖尿病药物的食品补充剂替代品。粘蛋白 2 (MUC-2) 和紧密连接蛋白 (TJ),从而维持肠道结构和屏障通透性。因此,上述数据突出了 D. divaricata 粗多糖 (CDDP) 在治疗和修复 T1DM 疾病中的安全性和治疗作用,并可用作糖尿病药物的食品补充剂替代品。
更新日期:2022-09-17
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