Pharmacokinetics of fucoidan and low molecular weight fucoidan from Saccharina japonica after oral administration to mice  

作　　者：Jiaojiao TAN Yimin SONG Jing WANG Ning WU Yang YUE Quanbin ZHANG 

机构地区：[1]Key Laboratory of Experimental Marine Biology,Center for Ocean Mega-Science,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]Laboratory for Marine Biology and Biotechnology,National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Department of Pharmaceutical Engineering,Qingdao University of Science and Technology,Qingdao 266000,China [5]Laboratory for Marine Drugs and Biological Products,National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [6]Nantong Zhongke Marine Science and Technology Research and Development Center,Nantong 226000,China

出　　处：《Journal of Oceanology and Limnology》2023年第5期1900-1909,共10页海洋湖沼学报（英文）

基　　金：Supported by the National Natural Science Foundation of China (Nos.42176137,81872906);the Nantong Science and Technology Project (No.MS12021037);the STS Program of Chinese Academy of Sciences (No.KFJ-STS-QYZD-195);the K.C.Wong Education Foundation;CAS。

摘　　要：The brown seaweed,Sacchairna japonica,has been used in traditional Chinese medicine for over one thousand years.Oral administration of fucoidan or low molecular weight fucoidan(LMWF)from S.japonica could ameliorate kidney dysfunction in chronic kidney diseases and inhibit diabetic vascular complications.In many studies,LMWF was found to be more potent than fucoidan with high molecular weight.However,the pharmacokinetics of LMWF still remains unclear.The purpose of the research is to compare the pharmacokinetics of fucoidan with high molecular weight(136 kDa)with that low molecular weight(9.5 kDa)after oral administration to ICR mice.Since fucose is the main and representative monosaccharide of fucoidans,we evaluate the pharmacokinetics of fucoidan and LMWF by determining the fucose concentration in mice serum.Both fucoidan and LMWF were absorbed following oral administration.Fucoidan and LMWF were provided to mice by oral administration with 60 mg/kg and the maximum Concentration(C_(max))was found at 2.5 h(0.66±0.32 mg/L)for Fucoidan and 1.5 h(1.01±0.56 mg/L)for LMWF,respectively.It seems that LMWF had a higher area under the curve(AUC_(0–t))and was absorbed more quickly than fucoidan.The estimated bioavailability of LMWF was28.3%in the mice treated with a single dose of 30 mg/kg.In addition,LMWF was found widely spreaded into different tissues following oral administration and the highest concentration was found in kidney at 19.93±7.02μg/g.In this study,we first studied the pharmacokinetics of LMWF,in order to help to understand the function of LMWF.And our results shed light on the potential of development of drugs based on LMWF.

关 键 词：FUCOIDAN low molecular weight fucoidan PHARMACOKINETICS BIOAVAILABILITY tissue distribution 

分 类 号：R96[医药卫生—药理学]