PMID- 32356550 OWN - NLM STAT- MEDLINE DCOM- 20210308 LR - 20210308 IS - 2042-650X (Electronic) IS - 2042-6496 (Linking) VI - 11 IP - 5 DP - 2020 May 1 TI - Superior hypoglycemic activity of mulberry lacking monosaccharides is accompanied by better activation of the PI3K/Akt and AMPK signaling pathways. PG - 4249-4258 LID - 10.1039/d0fo00427h [doi] AB - Mulberry has been used as a functional food to treat type 2 diabetes mellitus (T2DM). However, it contains relatively high levels of fructose and glucose, which are not suitable for excess consumption by diabetic patients. In this study we used microbial fermentation to remove fructose and glucose from mulberry fruit, and then determined the effects on glycemia, the phosphatidylinositol 3-hydroxykinase/Akt (PI3K/Akt) and adenosine monophosphate-activated protein kinase (AMPK) signaling pathways and their downstream effectors in T2DM mice. After 5 weeks of administration, fermented mulberry (FM) significantly reduced fasting blood glucose, and also improved insulin sensitivity and glucose tolerance, more effectively than unfermented mulberry (MP). Moreover, compared with MP, FM had a more marked effect on the protein expression of intermediates in the PI3K/Akt and AMPK signaling pathways and their effectors: insulin receptor, phosphorylated Akt (Ser 308), phosphorylated glycogen synthase kinase-3beta (Ser 9), glycogen synthetase, phosphorylated forkhead transcription factor 1 (Ser 256), pyruvate carboxylase, phosphoenolpyruvate carboxykinase, fructose-1, 6-bisphosphatase, glucose-6-phosphatase, lipoprotein lipase, and phosphorylated AMPK (Thr 172), glucose transporter 4 and pyruvate kinase. These findings indicate that mulberry fruit modified to remove fructose and glucose may be more promising than whole mulberry as a treatment for diabetes. FAU - Long, Xiao-Shan AU - Long XS AD - Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, No. 133 Yiheng St., Dongguanzhuang Rd, Tianhe District, Guangzhou 510610, P.R. China. hu.tenggen@foxmail.com. FAU - Liao, Sen-Tai AU - Liao ST FAU - Wen, Peng AU - Wen P FAU - Zou, Yu-Xiao AU - Zou YX FAU - Liu, Fan AU - Liu F FAU - Shen, Wei-Zhi AU - Shen WZ FAU - Hu, Teng-Gen AU - Hu TG LA - eng PT - Journal Article DEP - 20200501 PL - England TA - Food Funct JT - Food & function JID - 101549033 RN - 0 (Hypoglycemic Agents) RN - 0 (Plant Extracts) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) SB - IM MH - AMP-Activated Protein Kinases/drug effects MH - Animals MH - Diabetes Mellitus, Type 2/drug therapy MH - Disease Models, Animal MH - Functional Food MH - Humans MH - Hypoglycemic Agents/*pharmacology/therapeutic use MH - Male MH - Mice MH - Mice, Inbred Strains MH - *Morus MH - Phosphatidylinositol 3-Kinases/drug effects MH - Phytotherapy MH - Plant Extracts/chemistry/*pharmacology/therapeutic use MH - Proto-Oncogene Proteins c-akt/drug effects MH - Signal Transduction/*drug effects MH - Specific Pathogen-Free Organisms EDAT- 2020/05/02 06:00 MHDA- 2021/03/09 06:00 CRDT- 2020/05/02 06:00 PHST- 2020/05/02 06:00 [pubmed] PHST- 2021/03/09 06:00 [medline] PHST- 2020/05/02 06:00 [entrez] AID - 10.1039/d0fo00427h [doi] PST - ppublish SO - Food Funct. 2020 May 1;11(5):4249-4258. doi: 10.1039/d0fo00427h. Epub 2020 May 1.